WO2025051154A1 - Dispositif d'éclairage à del - Google Patents

Dispositif d'éclairage à del Download PDF

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Publication number
WO2025051154A1
WO2025051154A1 PCT/CN2024/116863 CN2024116863W WO2025051154A1 WO 2025051154 A1 WO2025051154 A1 WO 2025051154A1 CN 2024116863 W CN2024116863 W CN 2024116863W WO 2025051154 A1 WO2025051154 A1 WO 2025051154A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
led lighting
light
optical component
lighting device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/116863
Other languages
English (en)
Chinese (zh)
Inventor
刘一川
余意
林宽
谭国胜
王鹏
张东梅
王名斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiaxing Super Lighting Electric Appliance Co Ltd
Original Assignee
Jiaxing Super Lighting Electric Appliance Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiaxing Super Lighting Electric Appliance Co Ltd filed Critical Jiaxing Super Lighting Electric Appliance Co Ltd
Priority to US19/008,674 priority Critical patent/US12571521B2/en
Publication of WO2025051154A1 publication Critical patent/WO2025051154A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders

Definitions

  • the present invention belongs to the technical field of LED lighting devices, and in particular relates to an LED lighting device.
  • LED lighting is widely used because of its advantages of energy saving and long life.
  • LED lamps in the prior art commonly include flat panel lamps and grille lamps.
  • Flat panel lights in the prior art usually include a light bar, a bottom frame, a light guide plate and a diffuser plate.
  • the light bar is arranged on the side of the bottom frame to provide lateral light output.
  • the light emitted by the light bar passes through the light guide plate and then is emitted from the diffuser plate.
  • Flat panel lights in the prior art have the following disadvantages: the light emitted by the light bar has a large light loss after passing through the light guide plate and the diffuser plate, resulting in a low light output efficiency of the flat panel lights; the light guide plate has a high cost, which is not conducive to the cost control of the flat panel lights; and the glare control of the flat panel lights is relatively general.
  • the grille lamp in the prior art includes a bottom frame, a light source (the light source can be a light bar, a fluorescent tube or an LED tube) and a grille.
  • the light source is fixed on the bottom frame, and a grille is arranged on the light emitting side of the light source.
  • the grille lamp in the prior art has the following disadvantages: the way of setting the grille is not conducive to the height control of the grille lamp, which increases the packaging and transportation cost; the cost of the grille is high, which is not conducive to the cost control of the whole lamp; when the grille is set, the light loss is large, and a dark area is easily formed at the grille, which is not conducive to light emission.
  • LED lighting fixtures in the prior art especially some grille lights with honeycomb array optical structures, often have structural designs that make the components of the honeycomb array optical structure relatively complex and scattered.
  • a reflector cup structure is designed to be composed of multiple components, which is complex to process and costly.
  • the assembly of the lamps also requires many processes, making it difficult to improve production efficiency.
  • the light type of LED panel lights or grille lights in the prior art is mostly Lambertian, which does not meet the lighting requirements in some occasions where other lighting effects are sought. For example, it does not meet the requirements under lighting conditions where bat-wing light type is required. Usually, achieving bat-wing light type requires the coordination of light sources emitting light in different directions, which makes the lamp structure complex and increases production costs.
  • An embodiment of the present invention provides an LED lighting device, characterized in that it includes:
  • a base comprising a bottom surface and side walls, the side walls are arranged around the bottom surface and form an accommodating space with the bottom surface, and the bottom surface comprises an integrally formed bottom surface groove;
  • the optical assembly comprises a light source assembly and an optical member
  • the light source assembly comprises a circuit board, an LED array and an electrical connection unit
  • the circuit board is disposed on the bottom surface of the base
  • the LED array is disposed on the circuit board
  • the circuit boards are electrically connected through the electrical connection unit, and at least a portion of the circuit board is accommodated in the bottom surface groove
  • the optical member comprises a plurality of optical units
  • the optical unit comprises a first optical member and a second optical member surrounding the outer periphery of the first optical member, the optical member covers the LED array and is located in the light emitting direction of the LED array;
  • a mounting frame wherein the mounting frame comprises a plurality of supporting members, the optical component is clamped by the base and the mounting frame, and the mounting frame and the side wall form a redundant space outside the accommodating space;
  • a power supply is arranged in the redundant space, and the installation frame covers the power supply.
  • An embodiment of the present invention further includes a hanging support member, which is disposed on the base and includes a plurality of hooks.
  • the first optical component covers the LED array, and at least a portion of the light generated by the LED array is emitted from the first optical component.
  • the second optical component includes a plurality of optical walls arranged around the first optical component, and the optical walls reflect at least a portion of the light emitted from the first optical component.
  • the side wall comprises a mounting end wall which is away from the bottom surface and parallel to the bottom surface, and the mounting end wall is formed by extending the side wall.
  • the mounting end wall comprises a bearing portion and a limiting portion, the bearing portion and the limiting portion are integrally formed, and the limiting portion is an arc-shaped protrusion.
  • the support member includes a first wall, and the first wall and the limiting portion clamp the optical component.
  • a first step structure and a second step structure are provided on the first wall, the first step structure abuts against the supporting portion, and the second step structure surrounds the outer side of the supporting portion.
  • the LED array includes a plurality of LED lamp beads
  • the circuit board includes a convex portion and a concave portion
  • the LED lamp beads are arranged on the convex portion.
  • An embodiment of the present invention provides an LED lighting device, characterized in that it includes:
  • a base comprising a bottom surface and side walls, the side walls are arranged around the bottom surface and form an accommodating space with the bottom surface, and the bottom surface comprises an integrally formed bottom surface groove;
  • an optical component at least a portion of which is disposed in the accommodating space
  • the optical assembly includes a light source assembly, an optical component and an optical bearing portion.
  • the light source assembly includes a circuit board, an LED array and an electrical connection unit.
  • the circuit board is arranged on the bottom surface of the base.
  • the array is arranged on the circuit board, the circuit boards are electrically connected through the electrical connection unit, and at least part of the circuit board is accommodated in the bottom surface groove, the optical bearing part is arranged on the bottom surface of the base, the optical component is arranged on the optical bearing part, and the optical bearing part includes a plurality of window structures corresponding to the LED array, and the light emitted by the LED array passes through the window structure to reach the optical component.
  • the optical bearing part includes a first prism structure and a second prism structure spaced apart from each other, the first prism structure includes a prism surface provided with a window, the second prism surface is pressed against the circuit board, and the window exposes the LED array.
  • the optical component includes a plurality of optical units arranged in an array, and the optical unit includes a first optical component and a second optical component arranged around the first optical component.
  • the LED array includes a plurality of LED lamp beads
  • the circuit board includes a convex portion and a concave portion
  • the LED lamp beads are arranged on the convex portion.
  • An embodiment of the present invention provides an LED lighting device, characterized in that it includes:
  • a base comprising a bottom surface and side walls, the side walls are arranged around the bottom surface and form an accommodating space with the bottom surface, and the bottom surface comprises an integrally formed bottom surface groove;
  • the optical assembly comprises a light source assembly and an optical member
  • the light source assembly comprises a circuit board, an LED array and an electrical connection unit
  • the circuit board is disposed on the bottom surface of the base
  • the LED array is disposed on the circuit board
  • the circuit boards are electrically connected through the electrical connection unit, and at least a portion of the circuit board is accommodated in the bottom surface groove;
  • the optical member includes a plurality of optical units, the optical unit including a first optical member and a second optical member surrounding an outer periphery of the first optical member;
  • the optical component covers the LED array and is located in the light emitting direction of the LED array.
  • the optical component further comprises a directional diffusion film, a light guide plate and a reflective paper, and a first clamping portion is provided at one end of the optical component close to the light source assembly, and the directional diffusion film, the light guide plate and the reflective paper are connected to the optical component through the first clamping portion;
  • the light source components are arranged on both sides of the light guide plate.
  • An embodiment of the present invention further includes a mounting frame and a power supply, wherein the mounting frame includes a plurality of supporting members, and the optical component is clamped by the base and the mounting frame;
  • the installation frame and the side wall form a redundant space outside the accommodating space
  • the power supply is arranged in the redundant space, and the installation frame covers the power supply.
  • the second optical component includes a plurality of optical walls, each of which includes a light emitting hole, and each of which exposes the LED array.
  • a supporting portion is disposed at one end of the optical component close to the light source assembly, and the supporting portion contacts the bottom surface and keeps a distance between the optical component and the bottom surface.
  • An embodiment of the present invention further includes a hanging support member, which is fixed to the base and includes a plurality of hooks.
  • the side wall comprises a mounting end wall which is away from the bottom surface and parallel to the bottom surface, and the mounting end wall is formed by extending the side wall.
  • the mounting end wall comprises a bearing portion and a limiting portion, the bearing portion and the limiting portion are integrally formed, and the limiting portion is an arc-shaped protrusion.
  • An embodiment of the present invention provides an LED lighting device, characterized in that it includes:
  • a base comprising a bottom surface and side walls, the side walls are arranged around the bottom surface and form an accommodating space with the bottom surface, and the bottom surface comprises an integrally formed bottom surface groove;
  • an optical component at least a portion of which is disposed in the accommodating space
  • the optical assembly includes a light source assembly and an optical component
  • the light source assembly includes a circuit board, an LED array and an electrical connection unit
  • the circuit board is arranged on the bottom surface of the base
  • the LED array is arranged on the circuit board
  • the circuit boards are electrically connected through the electrical connection unit, and at least part of the circuit board is accommodated in the bottom surface groove;
  • the optical member includes a plurality of optical units and a diffuser, wherein the optical unit includes a first optical member and a second optical member surrounding an outer periphery of the first optical member;
  • the diffusion element is snap-connected to the optical unit
  • the optical component covers the LED array and is located in the light emitting direction of the LED array.
  • the diffuser includes a flat portion, a three-dimensional portion and a hook
  • the flat portion has a surface parallel to the bottom surface
  • the flat portion is fixed to the bottom surface
  • the three-dimensional portion is arranged on the surface of the flat portion parallel to the bottom surface
  • the hook can be arranged around the flat portion.
  • An embodiment of the present invention further includes a mounting frame and a power supply, wherein the mounting frame includes a plurality of supporting members, and the optical component is clamped by the base and the mounting frame;
  • the installation frame and the side wall form a redundant space outside the accommodating space
  • the power supply is arranged in the redundant space, and
  • the mounting frame covers the power supply.
  • the second optical component includes a plurality of optical walls, each of which includes a light emitting hole, and each of which exposes the LED array.
  • a supporting portion is disposed at one end of the optical component close to the light source assembly, and the supporting portion contacts the bottom surface and keeps a distance between the optical component and the bottom surface.
  • An embodiment of the present invention further includes a hanging support member, which is fixed to the base and includes a plurality of hooks.
  • the side wall comprises a mounting end wall which is away from the bottom surface and parallel to the bottom surface, and the mounting end wall is formed by extending the side wall.
  • the mounting end wall comprises a supporting portion and a limiting portion.
  • the limiting portion is an arc-shaped protrusion.
  • the present invention has the outstanding and beneficial technical effects that the optical component is directly fixed through the base and the mounting unit, thereby improving product reliability and simplifying the mounting process.
  • FIG1 is a schematic front view of an LED lighting device according to an embodiment of the present invention.
  • FIG2 is an enlarged view of point A in FIG1 ;
  • FIG3 is a cross-sectional schematic diagram of an LED lighting device according to an embodiment of the present invention.
  • FIG4 is an enlarged view of point B in FIG3 ;
  • FIG5 is a perspective schematic diagram of an LED lighting device according to an embodiment of the present invention.
  • FIG6 is a schematic diagram of FIG1 without optical components
  • FIG7 is an enlarged view of point C in FIG6;
  • FIG8 is a perspective schematic diagram of an optical component
  • FIG9 is a perspective schematic diagram of the base
  • FIG10 is a schematic diagram of a three-dimensional structure of an LED lighting device in an embodiment
  • FIG11 is a second schematic diagram of the three-dimensional structure of an LED lighting device in an embodiment
  • FIG12 is a schematic cross-sectional view of an LED lighting device in an embodiment
  • FIG13 is an enlarged view of point D in FIG12;
  • FIG14 is an enlarged view of point E in FIG12;
  • FIG15 is a schematic diagram of a three-dimensional structure of an LED lighting device in an embodiment without optical components
  • FIG16 is a schematic diagram of a three-dimensional structure of an optical component in one embodiment
  • FIG17 is a schematic cross-sectional view of an LED lighting device in an embodiment
  • FIG18 is an enlarged view of point F in FIG17;
  • FIG19 is a schematic diagram of light emission of an LED lamp bead
  • FIG20 is a schematic diagram of light output from an LED array
  • FIG21 is a schematic diagram of a three-dimensional structure of an LED lighting device in an embodiment
  • FIG22 is a schematic cross-sectional view of an LED lighting device in an embodiment
  • FIG23 is an enlarged view of point G in FIG22;
  • FIG24 is a partial cross-sectional schematic diagram of the mounting structure
  • Fig. 25 is an enlarged view of point H in Fig. 22;
  • FIG26 is a first schematic diagram of a rear view structure of an LED lighting device in some embodiments.
  • FIG27 is a second schematic diagram of the rear view structure of the LED lighting device in some embodiments.
  • FIG28 is a third schematic diagram of the rear view structure of the LED lighting device in some embodiments.
  • FIG29 is a schematic diagram of a three-dimensional structure of an LED lighting device in an embodiment
  • FIG30 is an enlarged schematic diagram of point I in FIG29;
  • FIG31 is a schematic cross-sectional view of an LED lighting device in an embodiment
  • FIG32 is an enlarged schematic diagram of point J in FIG31;
  • FIG33 is a schematic diagram of a three-dimensional structure of an LED lighting device in an embodiment
  • FIG34 is a schematic diagram of the front view structure of an LED lighting device in an embodiment
  • FIG35 is a cross-sectional view 1 of an LED lighting device in an embodiment
  • FIG36 is an enlarged view of point K in FIG35 ;
  • FIG38 is an enlarged view of L in FIG37;
  • FIG39 is a partial cross-sectional structural schematic diagram of an LED lighting device in an embodiment in which the LED lighting device is installed horizontally and emits light downward;
  • FIG40 is a partial cross-sectional structural schematic diagram of an LED lighting device in an embodiment in which the LED lighting device is installed horizontally and emits light downward;
  • FIG41 is a partial cross-sectional structural schematic diagram of an LED lighting device in an embodiment in which the LED lighting device is installed horizontally and emits light downward;
  • FIG42 is a partial cross-sectional structural schematic diagram of an LED lighting device in an embodiment in which the LED lighting device is installed horizontally and emits light downward;
  • FIG46 is a first perspective structural diagram of an LED lighting device in an embodiment, showing the front side of the LED lighting device;
  • FIG47 is a second schematic diagram of the three-dimensional structure of an LED lighting device in an embodiment, showing the back side of the LED lighting device;
  • FIG48 is a schematic cross-sectional view of an LED lighting device in an embodiment
  • FIG50 is a schematic diagram of the three-dimensional structure of FIG46 without the optical component
  • FIG53 is a schematic diagram of a three-dimensional structure of a bottom plate in one embodiment
  • FIG55 is a schematic diagram of the cooperation between the power supply circuit board and the electronic components
  • Fig. 56 is a rear view of Fig. 55;
  • FIG57 is a schematic diagram of a three-dimensional structure of an LED lighting device in some embodiments.
  • FIG58 is a schematic diagram of the three-dimensional structure of FIG57 without the second optical element
  • Fig. 59 is an enlarged view of point N in Fig. 58;
  • FIG60 is a schematic diagram of the three-dimensional structure of FIG57 without the optical component
  • FIG61 is a schematic diagram of a cross-sectional structure of an LED lighting device in some embodiments.
  • Fig. 62 is an enlarged view of point P in Fig. 61;
  • FIG63 is a second schematic cross-sectional view of an LED lighting device in some embodiments.
  • Fig. 64 is an enlarged view of Q in Fig. 63;
  • FIG65 is a schematic diagram of a three-dimensional structure of an LED lighting device in some embodiments.
  • FIG66 is a schematic diagram of the three-dimensional structure of FIG65 without the second optical element
  • FIG67 is a schematic cross-sectional view of an LED lighting device in some embodiments.
  • Fig. 68 is an enlarged view of point O in Fig. 67;
  • FIG69 is a first schematic diagram of a three-dimensional structure of an LED lighting device in some embodiments.
  • FIG70 is a second schematic diagram of the three-dimensional structure of an LED lighting device in some embodiments.
  • FIG71 is a cross-sectional structural schematic diagram 1 of an LED lighting device in some embodiments.
  • Fig. 72 is an enlarged view of point P in Fig. 71;
  • Fig. 73 is an enlarged view of point Q in Fig. 71;
  • FIG74 is a second schematic cross-sectional view of an LED lighting device in some embodiments.
  • Fig. 75 is an enlarged view of point R in Fig. 74;
  • FIG76 is a front view schematic diagram of the overall structure of an LED lighting device in some embodiments.
  • FIG77 is a schematic back view of the overall structure of an LED lighting device in some embodiments.
  • FIG78 is an exploded view of the overall structure of an LED lighting device in some embodiments from the back;
  • FIG79 is an exploded view of the overall structure of an LED lighting device in some embodiments.
  • Fig. 80 is an enlarged schematic diagram of position S in Fig. 79;
  • FIG81 is a schematic cross-sectional view of an optical member in some embodiments.
  • Fig. 82 is an enlarged schematic diagram of point T in Fig. 81;
  • FIG83 is a schematic diagram of a light source in some embodiments.
  • FIG84 is a schematic diagram showing the positional relationship between LED lamp beads and optical components in some embodiments.
  • FIG85 is an exploded view of a mounting unit in some embodiments.
  • FIG86 is a schematic cross-sectional view of a mounting unit in some embodiments.
  • Fig. 87 is an enlarged schematic diagram of the portion U in Fig. 86;
  • FIG88 is a cross-sectional view of an LED lighting device in some embodiments.
  • Fig. 89 is an enlarged schematic diagram of point V in Fig. 88;
  • FIG90 is a front perspective schematic diagram of an LED lighting device in yet another embodiment of the present application.
  • FIG91 is a back perspective schematic diagram of an LED lighting device in another embodiment of the present application.
  • FIG. 92 is a schematic diagram of an exploded back side of an LED lighting device in another embodiment of the present application.
  • FIG93 is a schematic diagram of a hanging support member in yet another embodiment of the present application.
  • Fig. 94 is an enlarged view of point W in Fig. 91;
  • Fig. 95 is an enlarged view of the X in Fig. 92;
  • FIG. 97 is a schematic diagram of the main frame of an LED lighting device in another embodiment of the present application.
  • Fig. 99 is an enlarged view of position Y in Fig. 98 of the present application.
  • FIG104 is a perspective schematic diagram of an LED lighting device in yet another embodiment of the present application.
  • FIG105 is an exploded schematic diagram of an LED lighting device in yet another embodiment of the present application.
  • FIG106 is a front view of an LED lighting fixture according to an embodiment of the present invention.
  • FIG107 is a schematic diagram showing the back side of an LED lighting fixture according to an embodiment of the present invention.
  • FIG108 is a schematic diagram of a forward exploded view of an LED lighting fixture in one embodiment of the present invention.
  • FIG109 is a schematic diagram of a base in one embodiment of the present invention.
  • FIG110 is a schematic cross-sectional view of an LED lighting fixture according to an embodiment of the present invention.
  • FIG. 111A is a schematic diagram showing a light source assembly in one embodiment of the present invention.
  • FIG. 111B is a schematic diagram showing a light source assembly in another embodiment of the present invention.
  • FIG111C is a schematic diagram showing a light source assembly in yet another embodiment of the present invention.
  • FIG. 111E is a schematic diagram of a light source assembly in one embodiment of the present invention.
  • FIG111F is a schematic diagram showing a light source assembly in yet another embodiment of the present invention.
  • FIG112 is a schematic diagram showing an LED lighting fixture according to an embodiment of the present invention after removing the light processing component
  • FIG113 is a front view of some components of an LED lighting fixture according to another embodiment of the present invention.
  • FIG114 is a front view of a chassis of an LED lighting fixture in another embodiment of the present invention.
  • FIG115 is a schematic diagram showing the back side of a chassis of an LED lighting fixture in another embodiment of the present invention.
  • FIG116 is a schematic diagram showing the assembly of a power cord box and a chassis in another embodiment of the present invention.
  • FIG117 is a schematic cross-sectional view of an LED lighting fixture along the length direction in another embodiment of the present invention.
  • FIG118 is a schematic diagram of an LED lighting fixture in yet another embodiment of the present invention.
  • FIG119 is a schematic diagram of an exploded front view of an LED lighting fixture in yet another embodiment of the present invention.
  • FIG120 is a schematic diagram showing a light processing unit in yet another embodiment of the present invention.
  • FIG121 is a partial enlarged view of the position Z in FIG120;
  • FIG122A is a schematic diagram showing a directional diffusion film in yet another embodiment of the present invention.
  • FIG122B is a schematic diagram showing a directional diffusion film distribution in yet another embodiment of the present invention.
  • FIG123 shows a light pattern of an LED lighting fixture in yet another embodiment of the present invention after emitting light
  • FIG124 is a schematic diagram showing another directional diffusion film distribution in yet another embodiment of the present invention.
  • FIG125 shows another light pattern of an LED lighting fixture in yet another embodiment of the present invention after emitting light
  • FIG126 is a schematic diagram of an LED lighting fixture according to an embodiment of the present invention.
  • FIG127 is a schematic diagram of an exploded front view of an LED lighting fixture in one embodiment of the present invention.
  • FIG128 is a schematic diagram showing the back side of an LED lighting fixture in one embodiment of the present invention.
  • FIG129 is a schematic cross-sectional view taken along line A-A of FIG128;
  • FIG. 130 is a partial enlarged view of the portion A′ in FIG. 129 ;
  • FIG131 is a partial enlarged view of the B' in FIG129.
  • FIG132 is a schematic cross-sectional view of FIG128 along the line B-B;
  • FIG133 is a partial enlarged view of the position C' in FIG132;
  • FIG134 is a schematic diagram of a light processing unit according to an embodiment of the present invention.
  • FIG135 is a partial enlarged view of the position D′ in FIG134 ;
  • FIG136 shows a light pattern of an LED lighting fixture in one embodiment of the present invention after emitting light
  • FIG137 is a schematic diagram showing an LED lighting fixture in yet another embodiment of the present invention.
  • FIG138 is a schematic diagram of an exploded front view of an LED lighting fixture in yet another embodiment of the present invention.
  • FIG139 is a schematic diagram showing the back side of an LED lighting fixture in yet another embodiment of the present invention.
  • FIG140 is a schematic cross-sectional view of FIG139 taken along line C-C;
  • FIG142 is a schematic cross-sectional view of FIG139 along the line D-D;
  • FIG. 143A is a partial enlarged view of F′ in FIG. 142 ;
  • FIG143B is a schematic diagram of the optical path in FIG143A;
  • Fig. 144 is a schematic cross-sectional view of Fig. 139 taken along line E-E;
  • FIG145 is a partial enlarged view of the position G' in FIG144;
  • FIG146 is a partial enlarged view of the position H' in FIG144;
  • FIG147 is a schematic diagram showing a diffuser in yet another embodiment of the present invention.
  • FIG148 is a schematic diagram showing the back side of an LED lighting fixture in yet another embodiment of the present invention when a chassis is not provided;
  • FIG149A is a schematic diagram showing a chassis in yet another embodiment of the present invention.
  • FIG. 149B is a partial enlarged view of the position I' in FIG. 149A of the present invention.
  • FIG150 is a schematic diagram of a light processing unit according to an embodiment of the present invention.
  • FIG151 is a partial enlarged view of J' in FIG150;
  • FIG. 152 is a partial exploded view of an LED lamp in one embodiment of the present invention.
  • 100 LED lighting equipment; 1. Base; 10. Bottom surface; 101. Bottom surface groove; 1011. Positioning unit; 1012. Reinforcement unit; 10121. First reinforcement unit; 10122. Second reinforcement unit; 1013. Bottom surface groove cavity; 1014. Accommodation cavity; 1015. Groove gap; 1016. Plug-in hole; 1017. Light source groove; 1018. Power supply groove; 102. Groove cavity cover; 1021. Plug-in part; 103. Wire hole; 104.
  • first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present invention.
  • the term "and/or" includes any and all combinations of one or more of the associated listed items.
  • an LED lighting device is provided in an embodiment of the present invention, and the LED lighting device comprises: a base 1, an optical assembly 2, and the optical assembly 2 comprises a light source assembly 20, an optical component 21, and a power source 3.
  • the light source assembly 20 is electrically connected to the power source 3, the light source assembly 20 is arranged on the base 1, and the optical component 21 is arranged in the light emitting direction of the light source assembly 20.
  • the base 1 in this embodiment has a bottom surface 10 and a side wall 11, and the side wall 11 is arranged at the outer edge of the bottom surface 10 to form a receiving space 12 between the side wall 11 and the bottom surface 10.
  • the light source assembly 20 is arranged in the receiving space 12.
  • the base 1 can be made of metal, such as iron or stainless steel, to increase its heat dissipation performance.
  • the base 1 is composed of an integrated structure, and the side wall 11 is directly bent relative to the bottom surface 10.
  • the base 1 is composed of an integrated structure, which is directly formed by stamping or stretching, so that it has better structural strength.
  • the base 1 can also be made of plastic.
  • the light source assembly 20 can be directly fixed to the bottom surface 10 of the base 1.
  • the light source assembly 20 includes an LED lamp bead 201 (herein, the LED lamp bead can also be an LED chip) and a circuit board 202, wherein the LED lamp bead 201 is fixed on the circuit board 202, and the light source assembly 20 is directly fixed to the bottom surface 10 of the base 1 through the circuit board 202.
  • the circuit board 202 is directly fixed to the bottom surface 10 of the base 1 by bonding.
  • the light source assembly 20 can be clamped on the bottom surface 10 of the base 1 through the circuit board 202.
  • the light source assembly 20 can be directly fixed to the bottom surface 10 of the base 2 by welding.
  • the light source assembly 20 forms a heat conduction path with the bottom plate of the base 1, so that the heat generated by the LED lamp bead 201 when working can be quickly thermally conducted to the base 1, and the heat is dissipated through the base 1 to improve the heat dissipation efficiency.
  • the LED lamp bead 201 on the circuit board 202 is provided with two rows.
  • the LED lamp bead 201 on the circuit board 202 is provided with one row.
  • the LED lamp beads 201 have multiple rows, and adjacent LED lamp beads are staggered or spaced apart.
  • a positioning unit 1011 may be provided on the base 1 for positioning the light source assembly 20.
  • the positioning unit 1011 is a strip-shaped groove structure provided on the bottom surface 10, i.e., a bottom surface groove, and the circuit board 202 of the light source assembly 20 is at least partially or completely accommodated in the bottom surface groove, so that the position of the circuit board 202 is relatively fixedly configured as the bottom surface 10.
  • the bottom surface groove is stamped on the bottom surface 10, i.e., the bottom surface groove is integrally formed on the bottom surface, which is equivalent to providing a reinforcing rib on the bottom surface 10, which can increase the structural strength of the bottom surface 10 against bending.
  • the thickness dimension of the circuit board 202 is substantially the same as the depth dimension of the bottom surface groove.
  • the light source assembly 20 also includes an electrical connection unit, which can be attached to the bottom surface 10 and electrically connected to the circuit board 202 located in the groove.
  • the electrical connection unit 204 is attached to the bottom surface 10, and can press the circuit board 202 to limit the loosening of the circuit board 202.
  • the electrical connection unit 204 can be fixed to the bottom surface 10, for example, by glue or screws, so as to increase its stability and prevent the electrical connection unit 204 from loosening and causing the electrical connection between the electrical connection unit 204 and the circuit board 202 to become disconnected and fail.
  • a reinforcing unit 1012 may be further provided on the base 1.
  • the reinforcing unit 1012 may include a plurality of first reinforcing structures 10121 and a plurality of second reinforcing structures 10122, and the first reinforcing structures 10121 and the second reinforcing structures 10122 may be connected.
  • the first reinforcing structure 10121 and the second reinforcing structure 10122 may be arranged perpendicularly or substantially perpendicularly to each other, wherein the first reinforcing structure 10121 is extended along the length direction of the LED lighting device.
  • the first reinforcing structure 10121 protrudes toward the back side of the base 1 (the side where the light source assembly 20 is not provided), and similarly, the second reinforcing structure 10122 protrudes toward the back side of the base 1, and the first reinforcing structure 10121 and the second reinforcing structure 10122 are connected on the front side of the base 1.
  • the first reinforcement structure 10121 and the second reinforcement structure 10122 can be integrally formed on the base 1, such as by stretching or stamping, so that the first reinforcement structure 10121 and the second reinforcement structure 10122 protrude toward the back of the base 1.
  • the wall thickness of the first reinforcement structure 10121 and the second reinforcement structure 10122 is substantially the same as the wall thickness of the rest of the base 1. In other words, without additional material being provided on the bottom plate 1, the overall structural strength of the base 1 can be improved by providing the first reinforcement structure 10121 and the second reinforcement structure 10122.
  • a portion of the first reinforcement structure 10121 forms the aforementioned positioning unit 1011 for mounting the circuit board 202 of the light source assembly 20, and the portion of the first reinforcement structure 10121 has a first width.
  • One of the first reinforcement structures 10121 has an area for arranging the power supply 3, and the first reinforcement structure 10121 has a second width. Since the first reinforcement structure 10121 is concave on the front of the base 1, when the power supply 3 is arranged at the first reinforcement structure 10121, the power supply 3 can be reduced from protruding from the base 1. The size of the surface of the seat 1 is reduced, thereby reducing the overall thickness of the LED lighting device.
  • the remaining first reinforcement structure 10121 has a third width. The size of the third width is smaller than the size of the first width, and the size of the first width is smaller than the size of the second width. The size of the third width is greater than 2.5 mm.
  • a plurality of second reinforcement structures 10122 all have the same or substantially the same width.
  • the distance between adjacent first reinforcement structures 10121 is between 10 mm and 30 mm.
  • the optical component 21 includes an optical unit 211 and a mounting unit 212, and the mounting unit 212 corresponds to the base 1.
  • the mounting unit 212 is connected to the side wall 11 of the base 1.
  • the mounting unit 212 can be arranged on the inner side or the outer side of the side wall 11.
  • the mounting unit 212 is arranged on the outer side of the side wall 11 so that the optical component 21 is entirely covered on one side of the base 1 in the light emitting direction of the LED lighting device.
  • the LED lighting device is installed on the ceiling, the base 1 is not exposed, and the user cannot directly see the base 1. Only one group of optical units 211 is provided.
  • the mounting unit 212 includes at least one mounting hole 2121 disposed on the optical member 21 and the mounting wall 2122.
  • a hole corresponding to the mounting hole 2121 is also disposed on the base 1, so that the optical member 21 and the base 1 can be fixed by passing a rivet through the corresponding holes of the optical member 21 and the base 1.
  • the mounting unit 212 is disposed at the outer edge of the optical member 21 and includes a mounting wall 2122, which is disposed around the side wall 11 of the base 1 and disposed on the outer side of the side wall 11.
  • a bending portion 21221 is disposed on the mounting wall 2122, and the bending portion 21221 covers or abuts against the end of the side wall 11 in the thickness direction of the LED lighting device, so that the side wall 11 can be clamped by the bending portion 21221 and the optical member 21 itself, so that the optical member 21 is fixed to the base 1.
  • the optical member 21 and the base 1 do not need to be fixed by fasteners (such as bolts, rivets, etc.), which can prevent the fasteners from being disposed on the light-emitting surface of the optical member 21 and affecting the light emission of the optical member 21 (for example, the light-emitting surface of the optical member 21 is caused by the provision of fasteners. Local dark spots), and the integrity and aesthetics of the appearance of the optical member 1 can be ensured.
  • fasteners such as bolts, rivets, etc.
  • the optical component 21 is formed of plastic material.
  • the mounting wall 2122 of the optical component 3 can be deformed by heat pressing to form a bent portion 21221, thereby completing the fixation.
  • the mounting wall 2122 and the side wall 11 of the base 1 may also be fixed by buckles, fasteners, etc.
  • the above-mentioned method of setting the mounting wall 2122 of the optical component 21 outside the side wall 11 and fixing it can simplify the structure, thereby reducing the frame of the lamp, improving the aesthetics and light output effect, and reducing the dark area caused by the frame.
  • the mounting unit may also be composed of a separate component.
  • the mounting frame 5 includes a plurality of support members 51 , which are arranged around the outer edge of the optical member 21 and/or the base 1 to provide support for the optical member 21 and the base 1 , thereby improving the structural strength of the entire lamp.
  • the support members 51 constitute the outer frame of the LED lighting device.
  • the support member 51 includes a first wall 511, which is attached to the surface of the optical component 21 in the thickness direction of the LED lighting device, and the first connecting wall 2113 at the edge of the optical component 21 is clamped between the support member 51 and the mounting end wall 13 extending outward from the side wall 11 of the base 1, that is, the optical component 21 is clamped and fixed by the mounting frame 5 (or the support member 51) and the base 1 (or the end wall 13 on the base 1).
  • the support member 51 may further include a second wall 512, on which a stopper 5121 is provided.
  • the mounting end wall 13 is provided with a forced support member 131, which is inserted into the space formed between the stopper 5121 and the first wall 511, and causes the first connecting wall 2113 at the edge of the optical component 21 to be pressed between the mounting end wall 13 and the first wall 511, so as to complete the fixation of the three.
  • the forced support member 131 is inserted between the first wall 81 and the stopper 5121 in an interference fit manner, so as to complete the fixation.
  • the mounting end wall 13 is pressed against the first connecting wall 2113 at the edge of the optical component 21, so as to fix the base 1, the optical unit 2 and the support member 51 as a whole.
  • the mounting end wall 13 has a fitting portion 132 that fits with the first connecting wall 2113 at the edge of the optical member 21 and an extension portion 133 that does not fit with the first connecting wall 2113 at the edge of the optical member 21.
  • the distance from the extension portion 133 to the first wall 812 is smaller than the distance from the fitting portion 132 to the first wall 812. In other words, since the first connecting wall 2113 at the edge of the optical member 21 is not provided between the extension portion 133 and the first wall 511, there is a certain gap between the extension portion 133 and the first wall 511.
  • the extension portion 133 connected to the force-supporting member 131 has space to deform toward the first wall 812, so as to facilitate the force-supporting member to be inserted between the stopper portion 5121 and the first wall 511.
  • the provision of the extension portion 133 allows the deformation of the force-supporting member 131 when it is inserted between the stop portion 5121 and the first wall 511 to occur at the force-supporting member 131 and the extension portion 133, thereby preventing the force-supporting member 131 from being damaged or being unable to be normally inserted between the stop portion 5121 and the first wall 511 due to the deformation being concentrated at the force-supporting member 131.
  • the end of the forced support member 131 abuts against the stop portion 5121, and at least a portion of the main body of the forced support member 131 can maintain a gap with the second wall 512, so that the forced support member 131 can have sufficient elastic deformation to maintain sufficient force on the stop portion 5121 to prevent the forced support member 131 from slipping off between the stop portion 5121 and the first wall 511.
  • the distance between the end of the force-supporting member 131 and the second wall 512 is the shortest, and the distance between the force-supporting member 131 and the second wall 512 gradually increases in the direction of the force-supporting member 131 being mounted on the end wall 13 .
  • the support member 51 may be formed by sheet metal, for example, by bending a thin sheet of material, or may be a profile formed by extrusion.
  • support members 51 There are multiple groups of support members 51 , and adjacent support members 51 can be fixed by welding.
  • the support member 51 does not exceed the space defined by the optical member 21, so the support member 51 does not occupy the thickness dimension of the LED lighting device.
  • the lower surface of the first wall 511 of the support member 51 can be flush or substantially flush with the lower surface of the optical member 21.
  • the optical unit 211 in this embodiment includes a plurality of first optical components 2111 (light-transmitting components), and a second optical component 2112 surrounding the outer periphery of the first optical component 2111, and the light generated by the light source assembly 20 when working can pass through the first optical component 2111.
  • the light source assembly 20 includes a plurality of LED arrays 203, and the LED arrays 203 include at least one LED lamp bead 201.
  • each LED array 203 includes a plurality of LED lamp beads 201.
  • the LED array 203 corresponds to the first optical component 2111, that is, the LED array 203 is configured in a one-to-one correspondence with the first optical component 2111, and the same number of the two are provided. In other embodiments, it can also be set that the number of the first optical component 2111 is greater than the number of the LED arrays 203.
  • the LED lamp beads 201 in the LED array 203 only correspond to the first optical component 2111, that is, the lamp beads 201 in the LED array 203 (or the LED array 203) are completely covered by the first optical component 2111. At least a portion of the light generated by the LED lamp beads 201 when working is emitted from the first optical component 2111, or at least a portion of the light generated by the LED array when working is directly emitted from the first optical component.
  • the first optical component 2111 has a first light emitting surface 21111, and there is a distance between the first light emitting surface 21111 and the LED lamp beads 201 of the LED array 203, and the light generated by the LED lamp beads 201 when working is emitted from the first light emitting surface 21111.
  • a plurality of LED lamp beads 201 of an LED array 203 are arranged along a first direction.
  • the first optical component 2111 (or the first light emitting surface 21111 ) is extended along the first direction.
  • the first light emitting surface 21111 has a main body 211111 extending along a first direction and tails 211112 located at both ends of the main body 211111 in the first direction.
  • the cross section of the main body 211111 (the cross section in the width direction of the first light emitting surface 21111) is arc-shaped, and the tail 211112 is configured as an arc-shaped surface, so that the first light emitting surface 21111 has a better light emitting effect.
  • the light emitted by the LED lamp bead 201 hits the arc-shaped surface, the light reflection is reduced, which can improve the light emitting efficiency, thereby increasing the light effect.
  • the first light emitting surface 21111 is closer to the LED lamp bead 201 than the second optical component 2112.
  • the first light emitting surface 21111 has a higher temperature than the second optical component 2112. Therefore, the first light emitting surface 21111 is arc-shaped, which can improve the structural strength and have better anti-deformation performance when heated.
  • the first light emitting surface 21111 can also be configured as a spherical surface or a plane.
  • the first optical component 2111 is configured to have a light diffusion function to increase the light output angle of the light source assembly 20 while avoiding light concentration and causing visual discomfort.
  • the first optical component 2111 has a light diffusion function due to its own material properties, such as using plastic or acrylic material.
  • the first optical component 2111 is coated with a diffusion coating or a diffusion film (not shown) on its surface to enable it to have a light diffusion function.
  • the optical unit 211 also has a plurality of second optical components 2112 (anti-glare components) corresponding to the first optical component 2111, and the second optical component 2112 is configured to reflect at least a portion of the light emitted from the first optical component 2111, and at least a portion of the light emitted from the first optical component 2111 is transmitted through the second optical component 2112.
  • second optical components 2112 anti-glare components
  • At least a portion of the light transmitted through the second optical member 2112 may be emitted from the adjacent second optical member 2112, or at least a portion of the light transmitted through the second optical member 2112 may be emitted from the second optical member 2112 after being reflected, so as to avoid the formation of a dark area at the second optical member 2112, thereby improving the aesthetics of the LED lighting device when it is lit.
  • the second optical member 2112 reflects at least a portion of the light emitted from the first optical member 2111, which plays a certain light-blocking role and can reduce glare.
  • At least a portion of the surface of the optical component 21 is provided with a micro-optical structure, such as a frosted surface or a prismatic surface, to enhance the light diffusion function of the optical component 21 (or the optical unit 211, the first optical component 2111, and the second optical component 2112) and reduce glare.
  • a micro-optical structure such as a frosted surface or a prismatic surface
  • the first optical component 2111 in the cross section of the first optical component 2111 in the width direction, has a bottom midpoint 21110, where the bottom refers to the bottom position of the first optical component 2111 when the LED lighting device is normally installed on a horizontal plane and emits light downward.
  • the midpoint 21110 here refers to the midpoint of the cross section of the first optical component 2111 in the width direction.
  • the second optical component 2112 has a proximal end 21122 and a distal end 21123 in the cross section of the height direction of the LED lighting device, wherein the proximal end 21122 is closer to the light source assembly 20 matched therewith than the distal end 21123.
  • the distal end 21123 is the lowest end of the second optical component 2112 in the height direction of the LED lighting device.
  • Midpoint 21110 The angle a between the line connecting the midpoint 21110 and the distal end 21123 and the lower end surface of the LED lighting device (the plane where the second connecting wall 2114 is located) is between 10 degrees and 45 degrees. Furthermore, the angle a between the line connecting the midpoint 21110 and the distal end 21123 and the lower end surface of the LED lighting device (the plane where the second connecting wall 2114 is located) is between 25 degrees and 35 degrees. In this way, a part of the direct light from the first optical component 2111 can be shielded to reduce glare. It should be noted that the above positional relationships, such as the midpoint, the proximal end and the distal end, are all based on the cross-sectional view shown in Figure 4.
  • the second optical component 2112 includes one or more groups of optical walls 21124, and the optical walls 21124 are configured to have the functions of reflection and light transmission.
  • the optical walls 21124 are arranged around the first optical component 2111.
  • a group of second optical components 2112 has 4 groups of optical walls 21124, and the 4 groups of optical walls 21124 are connected in sequence, and the optical walls 21124 are configured as planes.
  • a group of second optical components 2112 may have only one group of optical walls 21124, and the cross-sectional shape of the optical walls 21124 is annular.
  • the optical wall 21124 may be an inclined surface, which is inclined relative to the bottom surface 10.
  • the adjacent optical walls 21124 have a smooth transition, such as a circular arc transition, to avoid the formation of a dark area at the angle between the adjacent optical walls 21124, and to enable the adjacent optical walls 21124 to have a better reflection effect.
  • the optical wall 21124 reflects at least a portion of the light directly emitted from the first optical element 2111 .
  • the optical walls 21124 of adjacent second optical members 2112 are connected by a first connecting wall 2113. At least a portion of the light transmitted through the second optical member 2112 is emitted from the first connecting wall 2113 to avoid the formation of a dark area at the first connecting wall 2113.
  • the thickness of the first connecting wall 2113 is greater than that of the optical wall 21124, which provides better connection strength, and the thinner setting of the optical wall 21124 results in less light loss at the optical wall 21124.
  • a reinforcing wall 2116 may be provided on the second optical member 2112 to enhance the structural strength.
  • a reinforcing wall 2116 is provided between the optical walls 21124 of adjacent second optical members 2112.
  • the optical walls 21124 between adjacent second optical members 2112 are connected by the reinforcing wall 2116.
  • the reinforcing wall 2116 is a thin-walled structure.
  • the optical unit 211 also includes a second connecting wall 2114, and the mounting unit 212 is connected to the adjacent second optical component 2112 via the second connecting wall 2114, and at least a portion of the light transmitted through the second optical component 2112 is emitted from the second connecting wall 2114 to avoid the formation of a dark area at the second connecting wall 2114.
  • the second connecting wall 2114 is adjacent to the mounting end wall 13. Moreover, the surface of the second connecting wall 2114 is substantially flush with the mounting end wall 13 to increase the aesthetics.
  • a receiving portion 134 is provided at the mounting end wall 13, and the second connecting wall 2114 is placed at the receiving portion 134, so that the surface of the second connecting wall 2114 is flush or substantially flush with the mounting end wall 13.
  • the wall thickness of the first optical member 2111 and the second optical member 2112 is respectively smaller than the wall thickness of the first connecting wall 2113 or the second connecting wall 2114.
  • the first optical member 2111 is mainly used for light output of the light source assembly 20 (too thick a wall thickness will increase light loss)
  • the second optical member 2112 is mainly used for reflection and light transmission (too thick a wall thickness will increase light loss)
  • the first connecting wall 2113 and the second connecting wall 2114 are mainly used for structural connection, and strength must be ensured. Therefore, the above-mentioned wall thickness settings can meet the optical and structural requirements respectively.
  • the optical component 21 is an integrated structure.
  • the optical component 21 has a first area corresponding to the bottom surface 10 of the base 1 2117, and a second area 2118 corresponding to the side wall 11.
  • the second area 2118 is configured to be connected to the side wall 11.
  • the second area 2118 is configured with the aforementioned mounting unit 212.
  • the light source assembly 20 when the LED lighting device is working, the light source assembly 20 is illuminated, and at least 80% of the areas in the first area 2117 have light emitted to obtain a more uniform light output. Further, when the LED lighting device is working, the light source assembly 20 is illuminated, and at least 90% of the areas in the first area 2117 have light emitted to obtain a more uniform light output. Further, when the LED lighting device is working, the light source assembly 20 is illuminated, and the areas on the first area 2117 all have light emitted to obtain a uniform light output.
  • the first region 2117 may include the aforementioned first optical member 2111 , the second optical member 2112 , the first connecting wall 2113 , and the second connecting wall 2114 .
  • the circuit board 202 in this embodiment can be provided in multiple groups, and one or more groups of LED arrays can be provided on each group of circuit boards 202.
  • This embodiment also includes an electrical connection unit 204, and the LED lamp beads 201 on different circuit boards 202 are electrically connected through the electrical connection unit 204.
  • the electrical connection unit 204 uses a wire.
  • the electrical connection unit 204 uses a flexible circuit board, and the flexible circuit board is directly welded and fixed to the circuit board 202.
  • the electrical connection unit 204 is attached to the circuit board 202 and directly welded to multiple groups of circuit boards 202 to achieve electrical connection.
  • the electrical connection unit 204 uses a PCB board for connection.
  • the optical units 211 may be provided in multiple groups, for example, 2 groups or 4 groups. Adjacent optical units 211 are connected by a third connecting wall 2115. An accommodating space is formed between the third connecting wall 2115 and the bottom surface 10, and the power supply 3 is arranged in the accommodating space. Since the power supply 3 is arranged inside the LED lighting device, compared with arranging the power supply 3 outside the base 1, the power supply 3 will not occupy additional height space of the LED lighting device, and the height of the LED lighting device can be reduced. In this embodiment, the height of the LED lighting device is less than 35 mm. Furthermore, the height of the LED lighting device is less than 30 mm. Furthermore, the height of the LED lighting device is between 20 mm and 30 mm.
  • the LED lighting device includes at least one power supply 3, which is arranged outside the accommodation space 12 formed by the bottom surface 10 and the side wall 11, and more specifically, is arranged outside the side wall 11 away from the accommodation space 12.
  • the power supply 3 is arranged on the side wall 11, and is blocked by the mounting frame 5 and the side wall 11 in the light emitting direction of the LED lighting device, that is, in the opposite direction of the light emitting direction of the LED lighting device, the projection of the mounting frame 5 and the side wall 11 completely or at least partially covers the power supply 3.
  • the power supply 3 cannot be observed after the LED lighting device is installed in the use environment, thereby improving the aesthetics of the LED lighting device.
  • the power supply 3 is arranged on the outside of the accommodating space 12 between the side wall 11 and the mounting frame 5.
  • the redundant space that has to be formed due to the structural design, the redundant space is reused to set the power supply 3 without increasing the size of the LED lighting device.
  • the power supply 3 is arranged on the outside of the side wall 11. The heat generated by the power supply 3 when working can be directly dissipated through the external air environment, thereby improving the heat dissipation capacity of the equipment and preventing the heat generated by the power supply 3 when working from affecting the operation of other components of the LED lighting device.
  • the power supply 3 is arranged close to the side wall 11, and the upper and lower limits of the power supply 3 are not higher than the bottom surface 10 or the mounting frame 5.
  • the height of the power supply 3 is less than or equal to the total height of the LED lighting device. In the height direction, it is limited to the space formed by the two planes where the mounting frame 5 or the optical component 21 and the bottom surface 10 are at the maximum distance, that is, along the light emitting direction, the plane where the mounting frame 5 or the optical component 21 is at the highest height, and along the opposite direction of the light emitting direction, the plane where the bottom surface 10 is at the lowest height.
  • the power supply 3 is arranged close to the side wall 11, and the power supply 3 includes a power supply circuit board. 31 and electronic components 32 , etc., the electronic components 32 are arranged on the power supply board 31 .
  • the power supply 3 may further include a power supply box 33 (as shown in FIG. 78 ), which is disposed on the outside of the side wall 11, and the power supply box 33 is provided with an inclined surface that matches the inclination of the side wall 11, and the inclined surface cooperates with the side wall 11 to form a relatively closed accommodation space for accommodating the power supply 3, the power supply board 31 and the electronic components 32.
  • the power supply 3 may be arranged along the width direction or the length direction of the LED lighting device, and the number of the power supply 3 is at least 1.
  • the power supply box 33 and the side wall 11 share at least one surface, thereby reducing the cost of the lamp.
  • the LED lighting device includes a base 1 as a mounting base, the base 1 includes a bottom surface 10 arranged substantially parallel to a horizontal plane, a side wall 11 arranged around the bottom surface 10, the angle between the side wall 11 and the bottom surface 10 is greater than or equal to 90°, and the bottom surface 10 and the side wall 11 form a receiving space 12. The angle between the side wall 11 and the bottom surface 10 is greater than or equal to 90°.
  • An installation end wall 13 is arranged at one end of the side wall 11 away from the bottom surface 10, and the installation end wall 13 is formed by the side wall 11 extending outward in a direction substantially parallel to the bottom surface 10.
  • a reinforcing unit 1012 is provided on the base plate 1, and the reinforcing unit 1012 includes a first reinforcing structure 10121 and a second reinforcing structure 10122.
  • the first reinforcing structure 10121 and the second reinforcing structure 10122 are integrally extended or stamped from the bottom surface 10, and a convex structure is formed along the light emitting direction away from the LED, and a groove structure is formed along the light emitting direction of the LED lighting device, and the convexity and the groove have a certain height relative to the bottom surface 10.
  • the first reinforcing structure 10121 and the second reinforcing structure 10122 are used to make the bottom surface 10 have a three-dimensional spatial structure, thereby improving the overall strength of the bottom surface 10 without adding additional materials.
  • the first reinforcement structure 10121 and the second reinforcement structure 10122 have an intersection, that is, the first reinforcement structure 10121 and the second reinforcement structure 10122 are connected to each other, and the first reinforcement structure 10121 and the second reinforcement structure 10122 are raised relative to the bottom surface 10 in the opposite direction of the light emitting direction of the LED lighting device, and grooves are formed along the light emitting direction of the LED lighting device, and the grooves are connected and connected to each other, forming a heat dissipation channel distributed in a mesh structure, covering most of the area of the bottom surface 10, such as in one embodiment, the mesh heat dissipation channel covers more than 50% of the area of the bottom surface 10.
  • a raised mesh heat dissipation channel which can also be called a heat dissipation protrusion or a heat dissipation fin, which increases the heat dissipation area of the LED lighting device and improves the heat dissipation efficiency of the LED lighting device.
  • first reinforcement structure 10121 and the second reinforcement structure 10122 are perpendicular to each other.
  • the LED lighting device further includes a light source assembly 20, which includes a plurality of LED arrays 203, wherein the LED array 203 includes at least one LED lamp bead 201, wherein the LED lamp bead 201 (LED array 203) is fixed on a circuit board 202, and the circuit board 202 is fixed to the bottom surface 10 of the base 1, wherein the circuit board 202 may be arranged in the groove formed by the reinforcing unit 1012 as described above, or may be arranged directly on the bottom surface 10 without being arranged in the groove formed by the reinforcing unit 1012. In some embodiments, the circuit board 202 is directly fixed to the bottom surface 10 of the base 1 by bonding.
  • the light source assembly 20 may be clamped on the bottom surface 10 of the base 1 by the circuit board 202. In some embodiments, the light source assembly 20 may be directly fixed to the bottom surface 10 of the base 2 by welding. In the above embodiments, the light source assembly 20 forms a heat conduction path with the bottom plate of the base 1, so that the heat generated by the LED lamp bead 201 during operation can be quickly conducted to the base 1 and dissipated through the base 1 to improve the heat dissipation efficiency.
  • each LED array 203 includes at least two types of LED lamp beads 201, and the at least two LED lamp beads can realize at least two dimming and color adjustment functions.
  • the dimming and color adjustment of the LED lighting device can be controlled by controlling at least two columns of LED lamp beads 201 with different functions in the LED array 203.
  • the light source assembly 20 is provided with at least two groups of LED arrays 203 with different functions, that is, the single LED arrays 203 have the same function, but include at least two single LED arrays 203 with different functions, and the dimming and color adjustment of the LED lighting device is achieved by controlling different LED arrays.
  • adjacent LED lamp beads 201 are arranged in an interlaced manner, which can reduce power consumption while meeting lighting requirements.
  • FIG. 80 is an enlarged view of the position S in FIG. 79, which is a partial enlarged view of the mounting end wall 13.
  • the mounting end wall 13 includes a supporting portion 136 parallel or substantially parallel to the bottom surface 10, and a through hole 137 is provided on the supporting portion 136.
  • the through hole 137 is used to set a fixing member such as a screw, a bolt, a rivet, etc., for fixing other components of the LED lighting device such as the power supply 3, the optical component 21 or the mounting frame 5.
  • the supporting portion 136 can be used to carry the mounting frame 5 (or the support member 51), the optical component 21, or other components of the LED lighting device.
  • the mounting end wall 13 also includes a limiting portion 135 whose height is greater than the supporting portion 136 in the light emitting direction.
  • the limiting portion 135 is formed by bending the extension portion 120 of the side wall 11, and is integrally formed with the supporting portion 136.
  • the limiting portion 135 is an arc-shaped protrusion in the horizontal direction and surrounds the bottom surface 10.
  • FIG. 81 is a schematic cross-sectional view of an optical component 21 in an embodiment of the present application.
  • the optical component 21 includes a plurality of first optical components 2111 and a second optical component 2112 arranged in an array, wherein the first optical component 2111 is circular or elliptical, or is convex in a certain direction to form a hollow structure, forming an unsealed cavity.
  • the optical component 21 has a first connecting wall 2113 arranged around the optical component 21, and the first connecting wall 2113 extends integrally to the optical component 21 and is substantially parallel to the bottom surface 10.
  • a positioning portion 21131 corresponding to the limiting portion 135 is arranged at the edge of the first connecting wall 2113, and the positioning portion 21131 is located outside the limiting portion 135 in the projection direction of the light emitting direction, and is formed by bending the first connecting wall 2113.
  • FIG. 82 is a partial enlarged view of the T in FIG. 81 , which is used to more clearly introduce the structure of the positioning portion 21131.
  • the first connecting wall 2113 has a substantially arc-shaped positioning portion 21131 protruding toward the first optical component 2111 or the bottom surface 10.
  • the optical component 21 is stacked on the base 1, and its first connecting wall 2113 is supported on the installation end wall 13, and the positioning portion 21131 on the first connecting wall 2113 and the limiting portion 135 on the end wall are mutually attached, the positioning portion 21131 is located on the outside, and the limiting portion 135 is located on the inside, so as to achieve rapid alignment of the optical component 21 and the base 1.
  • the limiting portion 135 and the positioning portion 21131 at least partially overlap in the height direction, so as to reduce the overall height of the LED lighting device.
  • the first optical member 2111, the second optical member 2112, the first connecting wall 2113, and the positioning portion 21131 in the optical member 21 are all integrally formed, for example, by integral injection molding, thermoplastic molding, vacuum molding, hot pressing, etc. of a plastic material, and the light transmittance thereof is greater than or equal to 50%, and further greater than or equal to 80%.
  • the optical member can also be made of other common light-transmitting materials, such as acrylic or glass.
  • each LED array 203 includes at least An LED lamp bead 201.
  • the circuit board 202 is connected by an electrical connection unit 204.
  • the electrical connection unit 204 is an FPC; of course, in other embodiments, the electrical connection unit 204 can also be a PCB, a metal sheet/foil (such as a copper sheet/foil, an aluminum sheet/foil, a silver sheet/foil, etc.), a wire, a guide wire, etc.
  • FIG. 84 is a schematic diagram of the positional relationship between LED lamp beads and optical components in an embodiment of the present application.
  • the LED lamp beads 201 or the LED array 203 arranged on the circuit board 202 is covered by the first optical component 2111, that is, the first optical component 2111 and the bottom surface 10 form a relatively closed space for accommodating the LED lamp beads 201.
  • two rows of LED lamp beads 201 are arranged on the circuit board 202, with the midpoint of two side-by-side LED lamp beads 201 as the center line, and a single-sided illumination angle A' exists from the center line to the outermost layer that can be irradiated by an LED lamp bead 201 as the boundary, wherein the angle of A' is between 60°-80°.
  • the distance between the LED lamp bead 201 and the first optical component 2111 in its light emitting direction is H', and the range of H' is 16mm-20mm, preferably 19.2mm.
  • the maximum light output angle of the LED array 203 can reach 160°.
  • the final light output angle can be greater than 160°, such as 165°, 170°, 175°, etc., to improve the light output angle and uniformity.
  • the UGR of the LED lighting device is ⁇ 22, and the UGR value is the unified glare value, which can be used to evaluate the lighting quality to a certain extent, wherein the calculation method of the unified glare value is as follows:
  • L b is the background brightness, in cd/m 2 ;
  • ⁇ is the solid angle formed by the luminous part of each lamp to the observer's eyes, in sr;
  • L ⁇ is the brightness of the lamp in the direction of the observer's eyes in cd/m 2 ;
  • P is the position index of each individual luminaire
  • the light intensity, the shape of the light-emitting surface, the thickness of the lamp, etc., L b , ⁇ , L ⁇ , and P are controlled, thereby controlling the unified glare value (i.e., UGR value) of the lamp to ensure the light quality and comfort of use of the lamp.
  • the solid angle is the projection area of any object projected onto a unit sphere constructed with the observation point (i.e., the human eye) as the center of the sphere, which is the solid angle of the object relative to the observation point.
  • FIG. 85 is an exploded schematic diagram of the mounting frame 5.
  • the mounting frame 5 is composed of four support members 51.
  • the support member 51 is a strip-shaped structural member, and its two ends are beveled edges, and the angle of the beveled edge is 45°, that is, the support member 51 is trapezoidal.
  • the support members 51 are connected end to end, and the four support members form a rectangle, that is, the beveled surfaces at both ends of the support member 51 and the beveled edges at both ends of another support member 51 form a right angle.
  • Figure 86 is a cross-sectional schematic diagram of the installation frame 5 in an embodiment of the present application, it can be seen from the cross-section that the support member 51 constituting the installation unit has at least one step structure, and the step structure cooperates with the aforementioned limiting portion 135 and the positioning portion 21131 to achieve the fixation between the base 1 and the optical component 21 of the LED lamp.
  • FIG. 87 is a partial enlarged view of the position of U in FIG. 86
  • FIG. 88 is a cross-sectional schematic diagram of an LED lighting device in an embodiment of the present application
  • FIG. 89 is a partial enlarged view of the position of V in FIG. 88.
  • the support member 51 includes a first wall 511, and the first wall 511 is facing away from the light emitting direction of the LED lighting device after the LED lighting device is assembled.
  • a plurality of step structures 5122 are provided on the first wall 511, and at least one locking member is also provided on the step structure 5122.
  • the groove 51223 and the step structure 5122 are arranged along the width direction of the support member 51 or the first wall 511 , and extend along the length direction of the support member 51 .
  • the support member 51 and the mounting end wall 13 of the side wall 11 of the base 1 clamp and fix the optical component 21.
  • the base 1 is used as a mounting base of the LED lighting device
  • the optical component 21 is superimposed on the base 1
  • the first connecting wall 2113 of the optical component 21 is supported on the mounting end wall 13 of the base 1
  • the positioning portion 21131 is engaged with the limiting portion 135
  • the limiting portion 135 is located inside the positioning portion 21131
  • the limiting portion 135 is directly formed by the base 1, and during the assembly process, the movement of the optical component 21, such as lateral displacement, can be effectively limited.
  • At least a portion of the wall of the step structure 5122 of the mounting frame 5 that is perpendicular to the first wall 511 (such as the first extension wall 51222 described later) abuts against the extension of the supporting portion 136 (i.e., the end of the supporting portion 136 away from the lamp body), and the supporting portion 136 is packaged to a certain extent, with a portion of it being arranged on the surface of the supporting portion 136.
  • the locking groove 51223 corresponds to the through hole 137 on the supporting portion 136, and a locking thread is arranged on the inner wall of the locking groove 51223.
  • Screws, bolts or rivets pass through the through hole 137 to reach the locking groove 51223, so that the mounting frame 5 can be fixed on the mounting end wall 13.
  • a portion of the first wall 511 of the mounting frame 5 covers the optical component 21 and completely covers the positioning portion 21131.
  • the mounting frame 5 has pressure toward the end 13, that is, the first wall 511 presses the optical component 21, thereby achieving fixation of the base 1, the optical component 21 and the mounting frame 5.
  • the positioning portion 21131 is a groove structure.
  • the groove structure may be filled with an adhesive material to bond the optical component 21 and the first wall 511 of the mounting frame 5 .
  • the difference between the width of the third connecting wall 2115 and the width of the first connecting wall 2113 does not exceed 15 mm, 12 mm, 10 mm or 8 mm.
  • the difference between the width of the third connecting wall 2115 and the width of the first connecting wall 2113 is controlled within the above range, the overall consistency of the optical component 21 can be better, thereby improving the visual effect.
  • the power source 3 is arranged to extend along the length direction of the LED lighting device.
  • the power source 3 can be arranged in the middle area of the LED lighting device in the width direction. Since the power source 3 itself has a certain structural strength, when it is arranged on the base 1, the structural strength of the bottom plate 1 can be further increased.
  • the power source 3 is located between the corresponding optical walls 21124 of the corresponding two groups of second optical members 2112.
  • the power source 3 includes a power board 31 and an electronic component 32 .
  • the electronic component 32 is disposed on the power board 31 .
  • the power board 31 can be directly or indirectly attached to the front surface of the base 1 .
  • the power supply 3 may further include a power box 33 , which is disposed on the front side of the base 1 (i.e., the side facing the light emitting direction of the lamp), and a receiving space is formed between the power box 33 and the base 1 for accommodating the power board 31 and the electronic components 32 .
  • the power supply 3 is arranged between the two groups of light source assemblies 20.
  • a light redirection unit 331 is arranged outside the power supply box 33 to redirect the light emitted from the light source assembly 20 to the power supply box 33 and finally emit it from the LED lighting device, thereby reducing the absorption of light by the power supply 3 and improving the light extraction efficiency.
  • the light redirection unit 331 is configured with a reflection and/or light diffusion function.
  • the outer surface of the power box 33 directly forms the light redirecting unit 331 .
  • a separate component is disposed outside the power box 33 to form a light redirection unit 331.
  • the length of the power box 33 is configured to be less than half of the length of the LED lighting device.
  • the length of the light redirection unit 331 is greater than or equal to the length of the power box 33.
  • one end of the light redirection unit 331 in the length direction is configured to be aligned with the side portion of one side of the base 1.
  • the light redirecting unit 331 is configured to reduce the influence of the power source 33 on the local light emission of the optical component 21.
  • a spacing is maintained between the light redirecting unit 331 and the optical member 21, and a light channel 3311 is formed in the spacing.
  • the minimum value of the spacing is 2.5 mm. In other words, the distance from any point on the light redirecting unit 331 to any point on the optical member 21 is greater than or equal to 2.5 mm. If the spacing is too small, the reflection and diffusion of light in the light channel 3311 will be affected.
  • the shortest distance from any point on the light redirecting unit 331 to any point on the optical member 21 is no more than 12 mm, so as to facilitate the control of the overall size of the LED lighting device.
  • the light channel 3311 includes a first light channel 33111 and a second light channel 33112 connected thereto.
  • the first light channel 33111 is formed between the side surface 3312 of the light redirecting unit 331 and the optical wall 21124 of the second optical member 2112.
  • the side surface 3312 of the light redirecting unit 331 and the optical wall 21124 of the second optical member 2112 are arranged in parallel or substantially in parallel.
  • the second light channel 33112 is formed between the top surface 3313 of the light redirecting unit 331 and the third connecting wall 2115.
  • the top surface 3313 of the light redirecting unit 331 and the third connecting wall 2115 are arranged in parallel or substantially in parallel.
  • the distance between the side surface 3312 of the light redirection unit 331 and the optical wall 21124 of the second optical component 2112 is smaller than the distance between the top surface 3313 of the light redirection unit 331 and the third connecting wall 2115, so that more light can be emitted from the third connecting wall 2115 through the second light channel 33112, so as to reduce the dark area formed at the third connecting wall 2115.
  • the electronic component 32 has a length dimension, a width dimension and a height dimension. Referring to FIG. 52 , among the electronic components 32 , there are at least two different types of electronic components 32 , whose length dimension is greater than the width dimension, and the length direction of the electronic components 32 is extended along the length direction of the circuit board 202 , so that the width required to be set for the power supply 3 as a whole can be reduced.
  • the two different types of electronic components 32 may include electrolytic capacitors and transformers.
  • the electronic components 32 At least a portion of the electronic components 32 (the electronic components 32 are capacitors, ICs or resistors, etc.) has a length dimension greater than the width dimension, and the length direction of the electronic components 32 is extended along the width direction of the circuit board 202 , so that the length required to be set for the power supply 3 as a whole can be reduced, which is conducive to the control of the length dimension of the power supply 3 .
  • the electronic components 32 At least a portion of the electronic components 32 (such as transformers, capacitors or resistors) has a height dimension less than the width dimension, and the height direction of the electronic components 32 is set along the thickness direction of the circuit board 202 , so that the height of the power supply 3 as a whole can be reduced to reduce the influence on the light output caused by the setting of the power supply 3 .
  • the electronic components 32 such as transformers, capacitors or resistors
  • the length dimension of the power supply 3 accounts for more than one fifth of the length dimension of the LED lighting device. In one embodiment, the length dimension of the power supply 3 accounts for more than two fifths of the length dimension of the LED lighting device.
  • the dimension of the power supply 3 referred to herein may be the length of the power supply board 41 (the dimension of the power supply board 31 in the length direction of the circuit board 202), or may be the dimension occupied by the electronic components 32 on the two sides of the power supply 3 in the length direction of the circuit board 202 (the dimension includes the two electronic components 32 themselves). In this way, the power supply 3 can be distributed over a wider area on the base 1 to correspond to a larger area of the base 1, so as to facilitate the improvement of the heat dissipation performance.
  • the power board 31 has a first surface 311 and a second surface 312, wherein the first surface 311 is a surface that is attached to or corresponds to the bottom of the power box 33, and the bottom of the power box 33 is attached to the base 1, and the second surface 312 is the other surface of the power board 31 opposite to the first surface 311.
  • electronic components 32 are disposed on both the first surface 311 and the second surface 312.
  • the electronic components 32 on the first surface 311 include one or more heating components 321 (such as resistors, ICs).
  • the heat generated by the heating components 321 on the first surface 311 during operation can be transferred to the power box 33 more quickly and pass through the heat dissipation device 321 to generate heat.
  • the heat is dissipated through the base 1.
  • At least one heating element 321 on the first surface 311 can be in thermal contact with the bottom of the power box 33 to form a heat conduction path, thereby improving the heat dissipation efficiency.
  • the distance between any electronic component 32 on the first surface 311 and the bottom of the power box 33 does not exceed 4 mm or 3.5 mm, so that the heat transfer efficiency between the electronic component 32 and the bottom of the power box 33 can be higher.
  • the power box 33 is made of metal to facilitate faster transfer of heat generated by the heating element 321 during operation to the power box 33 and then to the base 1 .
  • a heat-conducting material 3111 is disposed on the first surface 311, and the heat-conducting material 3111 is a material with a high thermal conductivity (such as iron, aluminum, copper, tin, etc. in the prior art, or an alloy mainly composed of the above materials), or the heat-conducting material 3111 has a thermal conductivity that is at least greater than the thermal conductivity of the power board 31.
  • a high thermal conductivity such as iron, aluminum, copper, tin, etc. in the prior art, or an alloy mainly composed of the above materials
  • the thermal conductivity of the heat-conducting material 3111 is greater than the thermal conductivity of the power board 31.
  • the electronic components 32 on the second surface 312 include heating components 322 (such as transformers, inductors, ICs), and the heating components 322 on the second surface 312 form a heat conduction path with the heat-conducting material 3111.
  • the heating components 322 on the second surface 312 are connected to the heat-conducting material 3111 through their conductive pins to form a heat conduction path.
  • the heat conductive material 3111 can transfer heat to the bottom of the power box 33 by means of heat radiation or heat conduction.
  • the number of electronic components 32 (especially heating components 321) on the first surface 311 is greater than that of the electronic components 32 (especially heating components 321) on the second surface 312. Since the electronic components 32 on the first surface 311 are closer to the power box 33, heat can be dissipated more quickly to improve the overall heat dissipation efficiency of the power supply 3.
  • the number of electronic components 32 arranged per unit length (e.g., per 10 mm length) on the second surface 312 of the power supply board 31 is less than 1, 0.9, 0.8, or 0.7.
  • the arrangement density of the electronic components 32 in the length direction of the power supply board 31 can be controlled to facilitate the spacing control between the electronic components 32, thereby reducing the mutual thermal influence between the electronic components 32 (especially the heating components).
  • the effect of reducing the heat impact can be further achieved.
  • the electronic components 32 that generate high temperature on the same side can be configured to be arranged non-adjacent to each other.
  • other electronic components 32 such as capacitors and other components that generate less heat and are not easily affected by heat
  • the impact of the high temperature generated by the electronic components 32 on the operation of the lamp is further reduced.
  • the power supply 3 may also be disposed on the back side of the bottom surface 10 .
  • the power supply 3 may also be disposed on the back side of the bottom surface 10 .
  • there is no need to provide an accommodation space on the optical unit 211 that is, there is no need to provide a third connecting wall 2115 (as shown in FIGS. 3 and 5 ), so that the continuity of the optical unit 211 is better, thereby improving the light output effect and the aesthetic appearance.
  • the base 1 is further provided with an installation end wall 13, which is formed at the outer edge of the base 1 and connected to the side wall 11.
  • the installation end wall 13 is arranged parallel or substantially parallel to the bottom surface 10.
  • the side wall 11 and the installation end wall 13 form an accommodation space (there is a height difference between the installation end wall 13 and the bottom surface 10, and the power supply 3 is at least partially arranged in the height difference), and the power supply 3 is at least partially located in the accommodation space in the height direction, thereby reducing the height space occupied by the power supply 3 in the LED lighting device.
  • the height of the power source 3 is located in the accommodation space.
  • the power supply 3 is 80%, 85%, 90% or more than 95% of the length dimension of the seat 1, so that the power supply 3 can increase the structural strength of the base 1 in the length direction.
  • the power supply is disposed between the base 1 and the optical member 21.
  • the surface of the base 1 is convexly disposed outward (toward the back of the base 1) to form a bottom surface groove 101, and the bottom surface groove 101 forms a bottom surface groove cavity 1013 on the front of the base 1, and the power supply may be partially or completely located in the bottom surface groove cavity 1013.
  • a groove cavity cover 102 may be disposed on the base 1, and the groove cavity cover 102 is disposed on the bottom surface groove cavity 1013, so that a receiving cavity 1014 is formed between the bottom surface groove cavity 1013 and the groove cavity cover 102.
  • the power supply is located inside the receiving cavity 1014.
  • the groove cavity cover 102 is convexly disposed on the front of the base 1, and therefore, the volume of the receiving cavity 1014 is greater than the volume of the bottom surface groove cavity 1013.
  • the power supply does not need to be provided with an additional separate power supply box, which can simplify the structure and save costs.
  • a group of bottom surface grooves 101 are provided.
  • one of the groups of LED lighting devices is rotated by a certain angle (such as 90 degrees, 180 degrees or 270 degrees), and the bottom surface grooves 101 of the two groups of LED lighting devices are staggered so that when the two groups of LED lighting devices are stacked back to back, their total height is less than twice the height of a single group of LED lighting devices. Therefore, when two or more groups of LED lighting devices are stacked in the above method, the packaging size can be reduced and the transportation cost can be reduced.
  • a coordinate system is established on the back of the LED lighting device, with the center of the LED lighting device as the origin, and the bottom surface groove 101 can be completely located in one of the quadrants (as shown in FIG. 27 ), or completely located in two quadrants (as shown in FIG. 26 ).
  • two groups of bottom surface grooves 101 are provided, and a groove gap 1015 is provided between the two groups of bottom surface grooves 101.
  • the two groups of bottom surface grooves 101 can be extended in the same direction, for example, along the length or width direction of the LED lighting device.
  • the groove gap 1015 is located at the center of the base 1, and its dimension in the extension direction of the bottom surface groove 101 is greater than the width dimension of the bottom surface groove 101.
  • the bottom surface groove 101 is located in the middle position in the length or width direction of the LED lighting device (base 1 ), so that the LED lighting device as a whole is generally a symmetrical structure.
  • a group of groove cavity covers 102 are respectively matched with two groups of bottom surface groove cavities 1013.
  • the groove cavity cover 102 is provided with a plug-in wall 1051, and the base 1 is correspondingly provided with a plug-in hole 1016. When the plug-in wall 1051 on the groove cavity cover 102 is inserted into the plug-in hole 1016 of the base 1, the groove cavity cover 102 can be fixed to the base 1.
  • the distance between the LED lamp bead 201 and the groove cavity cover 102 is controlled to be greater than 15 mm.
  • the angle a between the side wall of the groove cavity cover 102 and the surface of the base 1 can be controlled to be greater than 120 degrees. In this way, the influence of the groove cavity cover 102 on the light emission of the LED lamp bead 201 can be prevented or reduced.
  • the LED lighting device may further include a hanging support 4, which is configured to be used to install the LED lighting device on a bracket (commonly known as a keel) on the ceiling.
  • the hanging support 4 may be made of metal, such as copper or iron, and the hanging support 4 may be embodied in different forms or include different components in different embodiments.
  • the hanging support may include one or more types of a rotating buckle, a hook, a corner guard, etc.
  • the hanging support 4 is connected and fixed to the base 1, more specifically, one end is fixed. On the mounting end wall 13, the other end can be bent accordingly to hang it on the bracket.
  • the height of the first optical component 2111 is no more than half of the height of the second optical component, so as to reduce the light directly emitted from the LED lighting device from the side of the first optical component 2111. In other words, more light emitted from the first optical component 2111 will be redirected by the second optical component 2112 to adjust the light output of the LED lighting device.
  • the LED lamp bead 201 of the LED array 203 has a beam angle A.
  • the definition of the beam angle (the angle formed by the two sides when the light intensity reaches 50% of the normal light intensity is the beam angle) is a prior art and will not be repeated here.
  • the value of the beam angle A can be between 100 and 130 degrees.
  • the LED lamp bead 201 is projected onto the inner surface of the first optical component 2111 within the boundary of the beam angle A, and forms a projection area m (the projection area m is a curved surface or a plane or other irregular surface) on the inner surface of the first optical component 2111, and the area of the projection area m is greater than 500 square millimeters.
  • the light intensity on the projection area m should be less than 50,000 lux without considering the influence of the adjacent LED lamp bead 201.
  • the size of the projection area m depends on the distance from the LED lamp bead 201 to the first optical component 2111. When the distance is larger, the thickness of the optical unit 3 is larger (which will increase the thickness of the entire lamp), which is not conducive to cost control. When the distance is smaller, the area of the projection area m may be less than 500 square millimeters, making it difficult to control the illumination and forming a granular feeling. Therefore, in this embodiment, the distance from the LED lamp bead 201 to the first optical component 2111 is controlled between 6 and 15 millimeters. In addition, without considering the influence of the adjacent LED lamp beads 201, the light intensity on the projection area m is greater than 10,000 lux. When the projection area m is non-planar, the shortest distance from the center of the surface of the LED lamp bead 201 to the first optical component 2111 within the range of the beam angle A can be used as the distance to be controlled.
  • the luminous flux of the LED lamp beads 201 is L.
  • the projection areas m of the LED lamp beads 201 of the same LED array 203 on the inner surface of the first optical component 2111 may partially overlap.
  • the illumination at any position within any projection area m does not exceed 5L/m to prevent strong light from forming when the projection areas m of the LED lamp beads 201 are superimposed.
  • the illumination at any position within any projection area m does not exceed 4L/m to prevent strong light from forming when the projection areas m of the LED lamp beads 201 are superimposed.
  • the illumination at any position within any projection area m does not exceed 3L/m to prevent strong light from forming when the projection areas m of the LED lamp beads 201 are superimposed. In one embodiment, the illumination at any position within any projection area m does not exceed 2L/m to prevent strong light from forming when the projection areas m of the LED lamp beads 201 are superimposed.
  • One of the factors that affect the overlap of the projection areas m of the LED lamp beads 201 is the distance between the LED lamp beads 201.
  • the center distance between the LED lamp beads 201 is controlled to be greater than 4 mm or 4.5 mm.
  • the number of LED lamp beads in the LED array 203 is n, and the number of projection areas m superimposed by any area of any projection area m is less than or equal to n. In one embodiment, the number of LED lamp beads in the LED array 203 is n, and the number of projection areas m superimposed by any area of any projection area m is less than n.
  • the total projection area on the inner surface of the first optical component 2111 is M.
  • the total projection area on the inner surface of the first optical component 2111 is M, which is the overlap between the two LED lamp beads 201 and the inner surface of the first optical component 2111.
  • the boundary of the projection area m, that is, the area of the total projection area M is the sum of the areas of the projection areas m of the two LED lamp beads 201 on the inner surface of the first optical component 2111 minus the area of the overlapping area.
  • the luminous intensity near the optical axis of the beam angle A is greater than the luminous intensity at the boundary area of the beam angle A, that is, looking at a single projection area m, the illumination intensity within its range is not uniform. Therefore, the following arrangement can be made, that is, 30%, 35%, or more than 40% of the total projection area M on the inner surface of the first optical component 2111 has at least two groups of projection areas m superimposed, so as to improve the uniformity of illumination within the total projection area M.
  • no more than 25%, 20%, or 18% of the total projection area M on the inner surface of the first optical component 2111 can be arranged to have four or more groups of projection areas m superimposed.
  • a first cavity 21112 is formed in the first optical member 2111 (between the first optical member 2111 and the surface of the base 1), and a second cavity 21125 is formed between adjacent second optical members 2112.
  • the first optical member 2111 is connected to the optical wall 21124 of the second optical member 2112 in its length direction, and the first cavity 21112 is connected to the second cavity 21125.
  • the LED lamp bead 201 emits light, at least part of the light enters the second cavity 21125 after being reflected by the base 1 and the first optical member 2111, and is transmitted from the corresponding optical wall 21124 and/or the first connecting wall 2113, so as to enhance the light emitting effect of the optical member 21.
  • a first cavity 21112 is formed in the first optical member 2111 (between the first optical member 2111 and the surface of the base 1), and a second cavity 21125 is formed between adjacent second optical members 2112.
  • the first optical member 2111 is not connected (not directly connected) to the optical wall 21124 of the second optical member 2112 in both the length direction and the width direction, so the first cavity 21112 and the second cavity 21125 are not connected (excluding the connection caused by the assembly gap, the assembly gap here is less than 5 mm, and it can be regarded that the first cavity 21112 and the second cavity 21125 are not connected), which can reduce the light generated when the light source assembly 20 is working, which is reflected in the first cavity 21112 and enters the second cavity 21125, so that the light emitted by the light source assembly 20 when working is more concentrated and emitted through the first optical member 2111.
  • the distance between the end of the first optical member 2112 (in FIG36 and FIG38, that is, the lower part of the first optical member 2112) and the bottom surface 10 of the base 1 is not more than 5 mm, 4 mm, 3 mm, 2 mm or 1 mm, so as to reduce the light emitted by the light source assembly 20 from leaking out of the gap between the first optical member 2112 and the bottom surface 10.
  • the end of the first optical member 2112 (in FIG36 and FIG38, that is, the lower part of the first optical member 2112) is at least partially attached to the bottom surface 10 of the base 1 to further reduce light leakage.
  • a positioning unit 1011 is provided on the bottom surface 10, and the light source assembly 20 is at least partially accommodated in the positioning unit 1011 in the height direction thereof.
  • the circuit board 202 of the light source assembly 20 is at least partially accommodated in the positioning unit 1011 in the thickness direction.
  • the tail portion 211112 of the first optical member 2112 i.e., the lower portion of the first optical member 2112 in terms of FIGS. 36 and 38 ) can be directly attached to the bottom surface 10.
  • the tail portion 211112 of the first optical member 2112 i.e., the lower portion of the first optical member 2112 in terms of FIGS. 36 and 38
  • the tail portion of the first optical member 2112 211112 maintains a distance from the bottom surface 10 , and the distance may be the height of the circuit board 202 exposed outside the positioning unit 1011 .
  • the surface of the circuit board 202 exceeds or is flush with the positioning unit 1011 , that is, the surface of the circuit board 202 is higher than the bottom surface 10 .
  • the optical wall 21124 has a reflective function and can reflect part of the light emitted from the first optical member 2111 to reduce the light emitted by the LED lighting device in the lateral direction of the first optical member 2111, thereby reducing glare.
  • the optical wall 21124 and the optical axis of the LED lamp bead 201 form an acute angle A.
  • the angle of the acute angle A between the optical wall 21124 and the optical axis of the LED lamp bead 201 is 30 to 60 degrees.
  • the optical wall 21124 includes a wall portion corresponding to the length direction of the first optical member 2111 and a wall portion corresponding to the width direction of the first optical member 2111.
  • angles between the wall portion of the optical wall 21124 corresponding to the length direction of the first optical member 2111 and the wall portion corresponding to the width direction of the first optical member 2111 and the optical axis of the LED lamp bead 201 are both within the range of the aforementioned acute angle A.
  • the angle between the two sets of optical walls 21124 corresponding to the width direction of the first optical component 2111 is smaller than the beam angle of the LED lamp bead 201, so as to block light and reduce the glare value.
  • the angle between the two sets of optical walls 21124 corresponding to the width direction of the first optical component 2111 i.e., twice the aforementioned acute angle A
  • FIG39 shows a schematic diagram of a partial cross-sectional structure of an LED lighting device in an embodiment in which the LED lighting device is installed horizontally and emits light downward, which shows a cross section in the width direction of the first optical member 2111.
  • the optical wall 21124 of the second optical member 2112 in the cross section in the width direction of the first optical member 2111, has a lower end point, and the lower end point extends in one direction and forms a straight line, the straight line L1 is tangent to the outer surface of the first optical member 2111, and the angle B between the straight line L1 and the horizontal plane (i.e., the light emitting surface of the LED lighting device, when the LED lighting device is installed horizontally, its light emitting surface is parallel or substantially parallel to the horizontal plane) is greater than 10 degrees, 12 degrees, 14 degrees, 16 degrees or 18 degrees.
  • the angle B between the straight line L1 and the horizontal plane i.e., the light emitting surface of the LED lighting device, when the LED lighting device is installed horizontally, its light emitting surface is parallel or substantially parallel to the horizontal plane
  • the angle B between the straight line L1 and the horizontal plane i.e., the light emitting surface of the LED lighting device, when the LED lighting device is installed horizontally, the light emitting surface is parallel or substantially parallel to the horizontal plane
  • the human eye and the first optical member 2111 are in a certain position (the angle C between the line connecting the human eye to the first optical member 2111 and the light emitting surface of the LED lighting device is less than the aforementioned angle B), the human eye will not directly observe the direct light emitted from the first optical member 2111, so the glare can be reduced.
  • a straight line L is set, one end of which is connected to the lower end point of the optical wall 21124, and the other end is tangent to the outer surface of the first optical member 2111, and the angle B between the straight line L and the horizontal plane (i.e., the light emitting surface of the LED lighting device, when the LED lighting device is installed horizontally, the light emitting surface is parallel or substantially parallel to the horizontal plane) is greater than 10 degrees, 12 degrees, 14 degrees, 16 degrees or 18 degrees.
  • the angle B between the straight line L1 and the horizontal plane is in the range of 15 to 25 degrees.
  • the angle B between the straight line L1 and the horizontal plane is in the range of 18 to 20 degrees.
  • the cross-sectional shape of the optical wall 21124 may not be set to be straight, as long as the position of its lower end point meets the above requirements, it can play a role in reducing glare.
  • FIG40 is a schematic diagram of a partial cross-sectional structure of an LED lighting device in an embodiment of the present invention, which is installed horizontally and emits light downwards, and shows a cross section of the first optical component 2111 in the length direction.
  • the optical wall 21124 of the second optical member 2112 has a lower endpoint, which extends in one direction and forms a straight line, the straight line L2 is tangent to the outer surface of the first optical member 2112, and the angle D between the straight line L2 and the horizontal plane (i.e., the light emitting surface of the LED lighting device, when the LED lighting device is installed horizontally, its light emitting surface is parallel or substantially parallel to the horizontal plane).
  • the value of the angle D is less than the value of the angle B.
  • the value of the angle D is greater than 10 degrees, 11 degrees, 12 degrees or 13 degrees. In one embodiment, the value of the angle D is in the range of 10 to 20 degrees. In one embodiment, the value of the angle D is in the range of 12 to 16 degrees.
  • a straight line L2 is set, one end of which is connected to the lower end point of the optical wall 21124, and the other end thereof is tangent to the outer surface of the first optical member 2111, and the angle D between the straight line L2 and the horizontal plane (i.e., the light emitting surface of the LED lighting device, when the LED lighting device is installed horizontally, its light emitting surface is parallel or substantially parallel to the horizontal plane) is in the range of 10 to 20 degrees. In some embodiments, the value of the angle D is in the range of 12 to 16 degrees.
  • the cross-sectional shape of the optical wall 21124 in this embodiment may not be set to be straight, as long as the position of its lower end point meets the above requirements, it can play a role in reducing glare.
  • FIG41 shows a schematic diagram of a partial cross-sectional structure of an LED lighting device in an embodiment in which the device is installed horizontally and emits light downward, and shows a cross section in the width direction of the first optical component 2111.
  • the two groups of optical walls 21124 of the second optical component 2112 corresponding to the LED lamp bead 201 both have lower endpoints, and the angles F between the center of the light-emitting surface of the LED lamp bead 201 and the lines L3 and L4 connecting the lower endpoints of the two groups of optical walls 21124 are respectively greater than 0.8 times the beam angle A of the LED lamp bead 201 (the angle formed by the two sides when the light intensity of the LED lamp bead 201 reaches 50% of the normal light intensity) to prevent the optical wall 21124 from excessively blocking the light output of the LED lamp bead 201, thereby causing light loss and reducing the light output efficiency.
  • the value of the angle F is less than 1.2 times of the beam angle A of the LED lamp bead 201 (the angle formed on both sides when the light intensity of the LED lamp bead 201 reaches 50% of the normal light intensity is the beam angle A, and the value of the beam angle A at this point is approximately 120 degrees) to ensure that the optical wall 21124 has a certain light-blocking effect to reduce glare.
  • FIG. 42 is a schematic partial cross-sectional view of an LED lighting device in an embodiment that is installed horizontally and emits light downward, showing a cross section of the first optical component 2111 in the length direction.
  • the angle G between the midpoint of the light-emitting surface of any LED lamp bead 201 in the LED array 203 corresponding to the first optical component 2111 and the connecting lines L5 and L6 of the lower endpoints of the two groups of optical walls 21124 is greater than 0.8 times the beam angle A of the LED lamp bead 201 (the angle formed by the two sides when the light intensity of the LED lamp bead 201 reaches 50% of the normal light intensity is the beam angle A, and the value of the beam angle A at this point is about 120 degrees), so as to prevent the optical wall 21124 from excessively blocking the light output of the LED lamp bead 201, thereby causing light loss and reducing the light output efficiency.
  • the value of the angle G is less than 1.2 times the beam angle A of the LED lamp bead 201 (when the light intensity of the LED lamp bead 201 reaches 50% of the normal light intensity, the angle formed on both sides is the beam angle A) to ensure that the optical wall 21124 has a certain light blocking effect to reduce glare.
  • FIG43 is a schematic diagram of a partial cross-sectional structure of an LED lighting device in an embodiment of the present invention, in which the LED lighting device is installed horizontally and emits light downward.
  • the cross section of the first optical component 2111 in the width direction is shown, and the cross section is cut at the main body 31111 in the length direction of the first optical component 2111.
  • a rectangular coordinate system is established, with the center of the circuit board 202 in the width direction as the origin, the thickness direction of the LED lighting device as the Y axis, and the width direction of the first optical component 2111 as the X axis. Any point on the first light emitting surface 21111 of the first optical component 2111 satisfies the following formula:
  • A is a constant, and the range of A is 0.048 to 0.052; E means exponent; K is a constant, and the range of K is 9 to 12.
  • the beam angle of the LED lamp bead 201 can better correspond to the first light emitting surface 21111 (in the width direction) of the first optical component 2111, so that the first light emitting surface 21111 has a uniform light distribution.
  • any point on the optical wall 21124 of the second optical member 2112 satisfies the following formula:
  • a is a constant, and its absolute value ranges from 1.35 to 1.45;
  • L is a constant, and the range of L is 18 to 22.
  • the optical wall 21124 can better redirect light incident on the optical wall 21124 to adjust light distribution and improve glare.
  • thermal resistance layer i.e., optical component 21
  • the LED lamp bead 201 there is only one thermal resistance layer (i.e., optical component 21) in the optical axis direction (light emitting direction) of the LED lamp bead 201.
  • the LED lamp bead 201 When the LED lamp bead 201 is working, at least part of the heat generated by it is radiated to the thermal resistance layer, and the heat is dissipated outward through the thermal resistance layer.
  • the prior art usually sets at least two sets of lampshades, lenses, diffusers, or light guide plates to achieve a uniform light emission effect, but the above components all constitute thermal resistance layers
  • the heat dissipation efficiency is improved.
  • the LED lamp bead 201 When the LED lamp bead 201 is working, the light it generates is emitted to the light-transmitting material, and then emitted from the LED lighting device after passing through the light-transmitting material.
  • the prior art usually sets at least two groups of lampshades, lenses, diffusers, or light guide plates to achieve a uniform light emission effect, but the above components will cause a certain amount of light loss), its light emission efficiency is improved.
  • the light emission efficiency of the LED lighting device is greater than 80%, 85%, or 90%.
  • the light emission efficiency here refers to the ratio of the luminous flux emitted from the LED lighting device to the total luminous flux generated by the LED lamp bead 201.
  • the light-transmitting component (first optical component 2111) and the anti-glare component (second optical component 2112) of the LED lighting device are made of the same layered material and are an integrated component.
  • a light distribution curve of the LED lighting device is designed (the light distribution curve represents the light output angle of each angle after the LED lighting device is installed horizontally).
  • the LED lighting device is roughly square (for example, it is two feet), or it can be understood as the lamp structure described in any of the above embodiments, its light distribution curve is roughly axially symmetrical (also known as rotational symmetry, which means that the light distribution curves in all directions are basically symmetrical or the same).
  • the ratio of illumination intensity (in cd) is between 0.8 and 1.2.
  • the ratio of illumination intensity (in cd) at the same angle of two sets of light distribution curves in any direction is between 0.9 and 1.1. Furthermore, the ratio of illumination intensity (in cd) at the same angle of two sets of light distribution curves in any direction is between 0.95 and 1.05. That is to say, when the ratio of illumination intensity at the same angle of two sets of light distribution curves in any direction is within the above range, it can be considered that the light distribution curves in all directions of the LED lighting device are basically symmetrical or the same. As an example, FIG.
  • the C0 plane is a plane perpendicular to the light-emitting surface of the LED lighting device and passing through the center line of the LED lighting device in one direction, and the one direction here is parallel to the length extension direction of the circuit board.
  • the C90 plane is a plane perpendicular to the C0 plane and passing through the center line of the LED lighting device in another direction, and the other direction here is perpendicular to the length extension direction of the circuit board.
  • Figure 45 shows a schematic diagram of the back of the LED lighting device.
  • the A0-A0 plane is the C0 plane
  • the B90-B90 plane is the C90 plane.
  • the horizontal direction in Figure 45 is the setting direction of the circuit board.
  • this embodiment takes the light distribution curve of the C0 plane as an example.
  • this embodiment proposes a light distribution curve to solve the glare of the LED lighting device and the uniformity of light output within the beam angle.
  • a coordinate system is established with the 0 point of the light distribution curve as the center. Within the range of 0 to 60 degrees, any point on the light distribution curve meets the following formula:
  • the light distribution curve of the C0 plane has a beam angle between 100 and 110 degrees.
  • the light distribution curves on both sides of the 0-degree angle of the C0 plane are roughly symmetrical. In the range of 0 to 60 degrees, when any point on the light distribution curve satisfies the above formula, the LED lighting device can have relatively uniform light output within the beam angle and good glare control.
  • a coordinate system is established with the 0 point of the light distribution curve as the center. Within the range of -30 to 30 degrees, any point on the light distribution curve satisfies the following formula:
  • a is a constant, and the range of a is -0.25 to -0.27; E means exponent; K is a constant, and the value of K is between 1600 and 1720.
  • the LED lighting device can have a higher light intensity in the range of -30 to 30 degrees to meet the light distribution requirements in this angle range.
  • the design of the light distribution curve described above can be achieved through the aforementioned structural design.
  • an optical component 21 is provided in one embodiment, which can be applied to the LED lighting device of the present invention.
  • the basic structure of the optical component 21 in this embodiment is roughly the same as that of the aforementioned embodiment (such as the optical component shown in the embodiments of FIGS. 1 to 56 ).
  • the optical component 21 also includes a first optical component 2111 and a second optical component 2112.
  • the first optical member 2111 is disposed in the light emitting direction of the corresponding LED array 203, that is, the first optical member 2111 is configured in a one-to-one correspondence with the LED array 203, and the same number of the first optical member 2111 and the LED array 203 are provided.
  • the outer dimensions of the LED lighting device are 2 feet by 2 feet (603mm*603mm), and the number of the optical members 21 is set to 16 groups.
  • the luminous flux emitted from each group of optical components 21 ranges from 250 lumens to 350 lumens.
  • at least 50% or more is emitted directly from the first optical component 2111 (without reflection from the second optical component 2112) to reduce the light loss caused by reflection from the second optical component 2112, thereby ensuring the light extraction efficiency.
  • the light extraction efficiency of the lamp in the prior art is usually not higher than 75% after passing through two layers of optical medium, while in the LED lighting device in this embodiment, at least 50% of the luminous flux passes through only one layer of optical medium (the first optical component 2111), and the overall light extraction efficiency can be higher than 80%.
  • the light extraction efficiency here refers to the ratio of the luminous flux emitted by the LED lighting device to the sum of the luminous flux generated by all LED lamp beads 201.
  • the structure of the first optical component 2111 may be substantially the same as the first optical component 2111 in the aforementioned embodiment.
  • the second optical member 2112 includes an optical wall disposed around the first optical member 2111.
  • the optical wall 21124 includes two sets of first light redirecting walls 211241 and two sets of second light redirecting walls 211242.
  • the first light redirecting walls 211241 are disposed on both sides of the width direction of the circuit board 202, and the second light redirecting walls 211242 are disposed in the length direction of the circuit board 202.
  • Both the first light redirecting walls 211241 and the second light redirecting walls 211242 may be configured with a reflective and/or light-transmitting function.
  • the beam angle of the LED lamp bead 201 is A (the definition of the beam angle is the same as above).
  • the LED array 203 includes a plurality of LED lamp beads 201, and the plurality of LED lamp beads 201 are arranged in a row along the length direction of the circuit board 202.
  • the angle a between the two sets of first light redirecting walls 211241 of the second optical component 2112 is greater than the beam angle A of the LED lamp bead 201. Therefore, even if the light of the LED lamp bead 201 is subjected to light processing (such as light diffusion) by the first optical component 2111, the emission of the light emitted by the LED lamp bead 201 at the first light redirecting wall 211241 can be reduced, thereby reducing light loss.
  • the difference between the angle a between the two sets of first light redirecting walls 211241 of the second optical component 2112 and the beam angle A of the LED lamp bead 201 does not exceed 30 degrees, so that the first light redirecting wall 211241 reflects sufficient light (light emitted from the LED lamp bead 201), so that the LED lighting has a more uniform light distribution and better glare control.
  • the angle b between the two sets of second light redirecting walls 211242 of the second optical member 2112 is smaller than the beam angle A of the LED lamp beads 201 and the angle a between the two sets of first light redirecting walls 211241. Therefore, the second light redirecting walls 211242 can reflect more light emitted by the LED lamp beads 201 in the LED array 203 to reduce the glare of the LED lighting device in the direction where the LED lamp beads 201 of the LED array 203 are arranged, and also make the first light redirecting walls 211241 reflect enough light (light emitted from the LED lamp beads 201) so that the LED lighting has a more uniform light distribution. In some embodiments, the angle b between the two sets of second light redirecting walls 211242 of the second optical member 2112 is smaller than 90°, 85°, 80° or 75°.
  • the LED array 203 has more than 10 LED lamp beads 201 (for example, 14), among which the light emitted within the range of the beam angle A of at least 2, 4 or 6 LED lamp beads 23 corresponds to the second light redirecting wall 211242.
  • the light emitted within the range of the beam angle A of at least 2, 4 or 6 LED lamp beads 23 will be projected onto the second light redirecting wall 211242 to reduce glare and enable the optical unit 91 to have better light distribution.
  • the LED lighting device may have different optical components to obtain different light-emitting effects. That is, the basic structure of the LED lighting device in the embodiments of Figures 57 to 60 is the same as that in the aforementioned embodiments (i.e., the structures of the base, power supply, and light source are the same or substantially the same), except that different optical components are replaced.
  • the optical component 21 includes a second optical component 2112 and a first optical component 2111, wherein the second optical component 2112 is covered on the base 1 and is configured to redirect at least a portion of the light emitted by the light source assembly 20, and the first optical component 2111 is disposed on the second optical component 2112 and is configured to have one or more of the functions of light transmission, light diffusion, light refraction, or light reflection.
  • a plurality of optical walls 21124 are provided on the second optical member 2112, and the optical walls 21124 correspond to the LED array 203 of the light source assembly 20.
  • the optical wall 21124 includes a light emitting hole 211243, and the light emitting hole 211243 exposes the corresponding LED array 203 to the optical wall 21124. That is, in the optical axis direction of the LED lamp beads 201 of the LED array 203, the optical wall 21124 will not form a shielding, and will not cause light loss caused by light passing through different media.
  • the optical wall 21124 is attached to the surface of the circuit board 202 of the light source assembly 20 so that there is no gap between the circuit board 202 and the wall portion of the outer edge of the light exit hole 211243 in the direction of the optical axis of the LED lamp bead 201, so as to prevent light from entering the gap and causing light loss.
  • the distance between the optical wall 21124 and the surface of the circuit board 202 of the light source assembly 20 is less than 1 mm (the distance between the surface of the circuit board 202 and the wall portion of the outer edge of the light exit hole 211243 in the direction of the optical axis of the LED lamp bead 201 is less than 1 mm), thereby reducing the gap between the circuit board 202 and the wall portion of the outer edge of the light exit hole 211243 where light enters, thereby controlling light loss.
  • the optical wall 21124 includes a first light redirecting wall 211241 and a second light redirecting wall 211242, wherein the first light redirecting wall 211241 is disposed on both sides of the width direction of the circuit board 202, and the second light redirecting wall 211242 is disposed in the length direction of the circuit board 202 and is located on both sides of the LED array 203. Both the first light redirecting wall 211241 and the second light redirecting wall 211242 may be configured with a reflective and/or light-transmitting function.
  • the first optical member 2111 covers the second optical member 2112, an optical cavity consisting of the first light redirecting wall 211241, the second light redirecting wall 211242 and the first optical member 2111 is formed, and the light generated by the LED lamp bead 201 when working is finally emitted from the first optical member 2111.
  • at least 50% of the luminous flux generated by the LED array 203 (light source assembly 20) when working passes through only one optical layer (excluding air) and is emitted from the LED lighting device, which can reduce the light loss caused by passing through multiple optical layers and improve the light extraction efficiency.
  • the first light redirecting wall 211241 has a first reflecting portion 2112411 and a first reflecting portion 2112412, wherein the first reflecting portion 2112411 is configured to reflect the direct light emitted by the LED lamp bead 201, and the first reflecting portion 2112412 is configured to reflect only secondary light (the direct light emitted by the LED lamp bead 201 is projected onto the first reflecting portion 2112412 after being reflected).
  • the first reflecting portion 2112411 is closer to the position of the lamp bead 21 than the first reflecting portion 2112412, and in some embodiments, the area of the first reflecting portion 2112411 accounts for at least one fifth of the area of the first light redirecting wall 211241, so as to avoid excessive concentration of light emitted by the LED lamp bead 2 after being reflected by the first reflecting portion 2112411 with a smaller area, which may easily cause uneven light emission.
  • the first optical component 2111 is removed (excluding the influence of the reflected light of the first optical component 2111), and after the LED lamp bead 201 is lit, the portion of the first light redirecting wall 211241 that is directly lit can be considered as the first reflecting portion 2112411 referred to in this embodiment, otherwise it is the second reflecting portion 61121.
  • the cross section shows the matching relationship between the first light redirecting wall 211241 and the LED lamp bead 201.
  • a straight line L one end of which is connected to the center of the front surface of the LED lamp bead 201, and the other end of which is tangent to the first light redirecting wall 211241, the straight line L and the first light redirecting wall 211241 are tangent points O, and the tangent points O divide the first light redirecting wall 211241 into a first part and a second part, the first part is closer to the LED lamp bead 201 than the second part, the first part is the first reflective part 2112411, and the second part is the first reflective part 2112412.
  • the ratio of the height H1 of the first part to the height H2 of the second part is between 1 and 1.3, so that the LED lighting device has better light uniformity and better light angle.
  • the first reflecting part 61122 can have a larger area to reflect the direct light output of the LED lamp bead 201 (or the first light redirecting wall 211241 has a larger area for reflecting the direct light output of the LED lamp bead 201), so that the reflected light can be emitted more evenly; on the other hand, the light output of the LED lighting equipment can be better controlled, its light output angle can be controlled, and glare can be reduced.
  • the first light redirecting wall 211241 may be arc-shaped.
  • the distance between the two sets of first light redirecting walls 211241 corresponding to the LED lamp bead 201 gradually increases in the direction away from the LED lamp bead 201 on the optical axis of the LED lamp bead 201, and the increasing amplitude increases. In other words, the distance between the two sets of first light redirecting walls 211241 corresponding to the LED lamp bead 201 is flared or expanded.
  • a ranges from 0.02 to 0.025
  • the absolute value of b ranges from 1.6 to 1.8
  • k is a constant ranging from 5 to 6.
  • the first light redirecting wall 211241 has better reflection of the light directly emitted by the LED lamp bead 201 and the light reflected from the first optical component 2111, so that the LED lighting device has better light uniformity and light angle.
  • the cross section shows the matching relationship between the second light redirecting wall 211242 and the LED array 203. At least a portion of the light emitted within the range of the beam angle A of any LED lamp bead 201 in the same LED array 203 is directly irradiated to the second light redirecting wall 211242 and reflected by the second light redirecting wall 211242. In other words, the boundary line of the beam angle A of any LED lamp bead 201 in the same LED array 203 intersects with the second light redirecting wall 211242.
  • the second light redirecting wall 211242 the overall light emission can be optimized, making the light emission distribution more reasonable.
  • the first optical member 2111 may be configured to have a light diffusion function (for example, the first optical member 2111 has a light diffusion function due to its own material properties, such as using an acrylic material) to improve the uniformity of the light output.
  • a micro-array structure is provided on the first optical member 2111 to redirect the light.
  • the optical structure The third optical component 2119 may also be provided in the circuit board 202.
  • the third optical component 2119 is extended along the length direction of the circuit board 202, and the third optical component 2119 is located in the optical axis direction of the LED lamp bead 201.
  • the third optical component 2119 may be configured to have only a reflective function, so as to reflect the light generated by the LED lamp bead 201 when it is working to the optical wall 21124 (the first light redirecting wall 211241 and the second light redirecting wall 211242), and then reflect it to the first optical component 2111 through the optical wall 21124 for light emission, so as to reduce the light intensity near the optical axis of the LED lamp bead 201, so as to improve the uniformity of light emission.
  • the third optical component 2119 is configured to have a reflective function and a light-transmitting function to prevent the formation of a dark area at the third optical component 2119.
  • the third optical member 2119 has a first reflective surface 21191 and a second reflective surface 21192, wherein the first reflective surface 21191 corresponds to the first light redirecting wall 211241 on one side, and the second reflective surface 21192 corresponds to the first light redirecting wall 211241 on the other side.
  • the first reflective surface 21191 and the second reflective surface 21192 are symmetrically arranged.
  • the optical axis of the LED lamp bead 201 corresponds to or approximately corresponds to the junction of the first reflective surface 21191 and the second reflective surface 21192. In the direction away from the junction of the first reflective surface 21191 and the second reflective surface 21192, the distance between the first reflective surface 21191 and the surface of the circuit board 202 gradually increases.
  • the third optical member 2119 is a strip-shaped structure and corresponds to the plurality of optical walls 21124.
  • the third optical member 2119 passes through the opening formed on the second light redirecting wall 211242 and is mounted on the second light redirecting wall 211242 to complete its fixation.
  • the LED lighting device in this embodiment may further include a mounting frame 5, which may also serve as a decorative element and is disposed at the outer edge of the base 1 and covers the outer edge of the optical member 21.
  • the decorative element 7 may serve as a decoration and may improve the structural strength of the LED lighting device.
  • Figure 90 is a front stereoscopic schematic diagram of an LED lighting device in another embodiment of the present application.
  • the LED lighting device 100 includes an optical component 21, and the optical component 21 includes a first optical component 2111 and a second optical component 2112 that are connected to each other.
  • An installation frame 5 is provided on the outside of the optical component 21, and the installation frame 5 surrounds the outer periphery of the optical component 21 and wraps the outer periphery of the optical component 21.
  • FIG. 91 is a three-dimensional schematic diagram of the back side of an LED lighting device in another embodiment of the present application.
  • it also includes a base 1, an optical component 21 is arranged on the base 1, and an integrally formed reinforcing unit 1012 is also arranged on the bottom surface 10 of the base 1.
  • the hanging support 4 in this embodiment is a disc-shaped structure, and its two ends are fixed to the mounting frame 5, and the flat surface is fixed to the mounting environment (such as the ceiling, etc.), so as to fix the LED lighting device 100 in the mounting environment.
  • a groove space is formed between the mounting frame 5 and the base 1, and the power supply 3 is arranged in the groove space and fits with at least one side of the mounting frame 5 (such as one side along the width direction of the LED lighting device), and completes the packaging of the power supply 3 together with the mounting frame 5, and the height (or thickness) of the power supply 3 does not exceed the height of the mounting frame 5.
  • the power supply 3 also includes an adjustment switch 34, which is electrically connected to the internal electronic components of the power supply 3.
  • a through hole is opened on the side of the installation frame 5 corresponding to the power supply 3, so that the adjustment switch 34 is exposed through the through hole, so that the user can control the working state of the LED lighting device 100, such as light intensity, color temperature, etc., through the adjustment switch 34.
  • FIG. 92 is a schematic diagram of the backside exploded view of an LED lighting device in another embodiment of the present application.
  • the mounting frame 5 is composed of a plurality of support members 51, such as four support members 51, two long and two short, a total of four support members 51 connected end to end.
  • the mounting frame 5 is formed, and the support member 51 is provided with a rotation buckle groove 51224, and both ends of the hanging support member 4 can cooperate with the rotation buckle groove 51224 to achieve fixation.
  • the hanging support member 4, the base 1, and the optical member 21 are stacked in sequence, wherein the base 1 includes a bottom surface 10 and a side wall 11 arranged around the bottom surface 10, and the bottom surface 10 and the side wall 11 form a groove 101 for accommodating the optical member 21.
  • the side wall 11 has an end away from the bottom surface 10 and has an installation end wall 13 extending outward (roughly parallel to the bottom surface 10), and the periphery of the optical component 21 has a first connecting wall 2113 roughly parallel to the bottom surface 10.
  • the main part of the optical component 21 i.e., the first optical component 2111 and the second optical component 2112
  • the first connecting wall 2113 of the optical component 21 and the installation end wall 13 of the side wall 11 abut against each other, i.e., the first connecting wall 2113 is supported on the installation end wall 13, and the installation frame 5 or the support member 51 covers the side of the first connecting wall 2113 away from the installation end wall 13, i.e., the base 1 and the installation frame 5 clamp the optical component 21.
  • a third optical component 2119 is further included.
  • the third optical component 2119 is disposed between the bottom surface 10 and the optical component 21 to diffuse the light emitted by the light source before transmitting it to the optical component 21.
  • the third optical component 2119 may be a curved diffusion plate.
  • a hanging support 4 is attached to the back of the bottom surface 10, that is, the surface away from the optical component 21.
  • the flat surface of the hanging support 4 is arranged parallel to the bottom surface 10 and separated by a certain distance. Both ends of the hanging support 4 are detachably connected to the mounting frame 5, or the support 51.
  • Figure 93 is a schematic diagram of a hanging support member in another embodiment of the present application.
  • the hanging support member 4 is a flat rectangular surface as a whole, and the first rotating buckle portion 41 and the second rotating buckle portion 42 are bent at opposite ends of the rectangular surface.
  • the first rotating buckle portion 41 and the second rotating buckle portion 42 are integrally formed with the hanging support member 4.
  • the first rotating buckle portion 41 and the second rotating buckle portion 42 can have the same or different structures, and can be bent toward the middle of the hanging support member 4 or toward the outside of the hanging support member 4, as long as they can be buckled and fixed with the rotating buckle groove 51224.
  • Figures 94 and 95 wherein Figure 94 is an enlarged view of the W in Figure 91, and Figure 95 is an enlarged view of the X in Figure 92.
  • Figures 91, 92, and 93 it can be seen that the two ends of the hanging support member 4, namely the first rotating buckle portion 41 and the second rotating buckle portion 42, are respectively buckled on the two opposite sides of the installation frame 5, or in other words, are buckled on the two opposite support members 51.
  • a step structure 5122 is provided on the support member 51, and the step structure 5122 extends out of an outer extension wall 51221 and an inner extension wall 51222.
  • the support member 51 is provided with an outer extension wall 51221 and an inner extension wall 51222 that are parallel to each other, wherein a plurality of rotating buckle grooves 51224 are provided on the inner extension wall 51222, and the rotating buckle grooves 51224 completely penetrate the inner extension wall 51222, and the first rotating buckle structure 51221 and the inner extension wall 51222 are parallel to each other. At least a portion of the portion 41 and the second rotating snap-fit portion 42 passes through the rotating snap-fit groove 51224. As shown in FIG94, the second rotating snap-fit portion 42 passes through the rotating snap-fit groove 51224 and snaps into engagement with the rotating snap-fit groove 51224 through a bending structure.
  • the rotating snap-fit groove 51224 is located in the recessed area formed by the bend. Under the combination of gravity and the upward bending design, the two are not easy to fall off.
  • a locking groove 51223 is also provided on one side of the step structure 5122.
  • one side of the mounting end wall 13 of the side wall 11 abuts against the first connecting wall 2113 of the optical component 21, and the other side abuts against the locking groove 51223, and is locked by a screw structure.
  • it can also be fixed by gluing, welding, snap-on or other structures.
  • FIG96 is a front exploded schematic diagram of an LED lighting device in another embodiment of the present application.
  • the support member 51 further includes a first wall 511, which is pressed against the first connecting wall 2113 of the optical member 21 away from the mounting surface.
  • the optical component 21 is pressed and fixed on the base 1 on one side of the end wall 13.
  • Figure 97 which is a schematic diagram of the main frame of the LED lighting device in another embodiment of the present application without showing the base 11 and the optical component 21. It can be seen that the hanging support 4 is arranged in the middle of the LED lighting device to ensure that the force of the LED lighting device is relatively uniform after being fixed to the use environment.
  • the power box 33 is combined with part of the installation frame 5 to form a packaging structure, and the base 1 is used to package the power supply 3.
  • Figure 98 is a schematic diagram of a hanging member in an LED lighting device in another embodiment of the present application rotated by a certain angle relative to the main body of the LED lighting device.
  • Figure 99 is an enlarged view of point Y in Figure 98 of the present application.
  • the second rotating snap-fit portion 42 is first snapped into the rotating snap-fit groove 51224 of the inner extension wall 51222.
  • relative rotation can also occur between the hanging support member 4 and the main body of the LED lighting device, that is, the hanging support member 4 and the main body of the LED lighting device (or the mounting frame 5) are partially fixed.
  • the relatively flat surface of the hanging support 4 needs to be locked to the use environment (such as the ceiling) by screws or other means, and then one end of the LED lighting device, that is, the inner extension wall 51222 of one end is fastened with one end of the hanging support 4 through the rotational fastening groove 51224, such as the first rotational fastening part 41 of the hanging support 4, to achieve the LED lighting device body and the hanging support 4 partially fixed, that is, the rotatable fixation as shown in FIG99.
  • the inner extension wall 51222 away from the first rotational fastening part 41 is fixed to the hanging support 4 or the ceiling through a safety rope 513, so that the hanging support 4, the LED lighting fixture body, and the safety rope 513 form a temporary triangular fixed structure to prevent the LED lighting fixture body from accidentally separating from the first rotational fastening part 41, causing property loss or casualties.
  • the safety rope 513 is set, the wire 514 connecting the LED lighting device to the outside world is connected, and the external power supply is obtained through the wire 514.
  • the main body of the LED lighting device After setting the wire 514, the main body of the LED lighting device is rotated in the direction of the arrow, that is, while keeping the first rotating buckle part 41 buckled with the inner extension wall 51222 on one side, the end of the LED lighting fixture away from the ceiling is pushed toward the second rotating buckle part 42, and finally the LED lighting fixture is made to fit the ceiling.
  • the safety rope 513 is removed, and the second rotating buckle part 42 has not yet buckled with the inner extension wall 51222.
  • the LED lighting device is pushed in the direction of the arrow in the figure, that is, the LED lighting device is pushed in the direction where the hanging support 4 and the inner extension wall 51222 are not engaged, so that the inner extension wall 51222 presses the second rotating buckle portion 42, causing it to bend downward and pass through the rotating buckle slot 51224.
  • the force is stopped, and at the same time, the second rotating buckle portion 42 recovers its deformation by its own material strength, that is, it bounces toward the ceiling or upward, and the rotating buckle portion 42 is locked through the bent portion, thereby achieving the fixation of the LED lighting device to the external environment, forming a structure as shown in FIG. 103.
  • this fixing method the installation efficiency of the LED lighting device can be greatly improved, and the adaptability of the LED lighting device to the installation environment can be improved.
  • the safety rope 513 may be removed after the second rotating buckling portion 42 is buckled with the inner extending wall 51222 .
  • FIG. 104 is a three-dimensional schematic diagram of an LED lighting device in another embodiment of the present application.
  • the installation frame 5 includes a support member 51, in FIG. 91, the support member 51 includes an outer extension wall 51221 and an inner extension wall 51222 formed in one piece, while in the LED lighting device in FIG. 104, the outer extension wall 51221 and the inner extension wall 51222 of the support member 51 are formed separately, that is, the inner extension wall 51222 After being formed separately, it is fixed to the support member 51, as shown in FIG. 105.
  • FIG. 105 is a schematic diagram of an exploded view of an LED lighting device in another embodiment of the present application.
  • the difference between the two is the structure of the mounting frame 5.
  • the support member 51 of the mounting frame 5 has an outer extension wall 51221 and an inner extension wall 51222 formed in one piece, for example, by integral stamping of sheet metal; while in the LED lighting device shown in FIG. 104 and FIG. 105, the outer extension wall 51221 and the inner extension wall 51222 are formed separately, that is, the outer extension wall 51221 is formed in one piece on the support member 51, and the inner extension wall 51222 is formed separately and then fixed to the support member 51.
  • the outer extension wall 51221 and the inner extension wall 51222 can be made of the same material or different materials, as long as they can meet the needs of LED lighting fixtures.
  • the inner extension wall 51222 is also provided with a plurality of rotation buckle grooves 51224. In one embodiment, each inner extension wall 51222 is provided with two rotation buckle grooves 51224. In the process of assembling and installing the LED lighting device to the use environment, the inner extension wall 51222 also needs to be fixed to the support member 51 by means of screws, welding, buckles, etc., and other LED lighting devices such as those shown in Figures 90 to 103 are not described here.
  • the present invention discloses an LED lighting fixture 100 in some other embodiments, which can be a lighting fixture that can be suspended or fixed to a ceiling or suspended ceiling.
  • the LED lighting fixture 100 disclosed in the present application can also be called a panel lamp, a flat panel lamp, a grille lamp, a chandelier, a recessed lamp, a concave lamp, a recessed lamp, a ceiling lamp, etc.
  • FIG. 106 is a front view of an LED lighting fixture 100 in an embodiment of the present invention
  • FIG. 108 is a front exploded view of an LED lighting fixture 100 in an embodiment of the present invention
  • the LED lighting fixture 100 includes a base 1 as a main structure of the fixture and a mounting base.
  • the base 1 includes a groove structure, i.e., a storage space.
  • Other components of the LED lighting fixture 100 can be accommodated in the groove structure of the bottom surface 10, such as an optical component 2.
  • the optical component 2 emits light when working, and lights up the LED lighting fixture to achieve lighting.
  • a mounting frame 5 is provided along the light emitting direction of the LED lighting fixture.
  • the mounting frame 5 includes a plurality of support members 51.
  • the support members 51 are covered on the LED lighting fixture and are in a clamping state with the base 1 to fix the optical component 2, i.e., the optical component 2 is located between the base 1 and the support member 51.
  • the LED lighting fixture 100 is rectangular in shape as a whole, and a mounting frame 5 connected end to end is arranged at the outermost side of the light emitting direction, and the mounting frame 5 includes a plurality of support members 51, and the support members 51 are used to fix the optical components inside the lamp, and the support members 51 have a flat surface, and the area enclosed by the maximum side length of the support members 51 is larger than the area enclosed by the maximum side length of the bottom surface 10, that is, the maximum side length of the support members 51 is larger than the maximum side length of the bottom surface 10, which can play a role in shielding some irregular structures of the LED lighting fixture 100, so that from the user's perspective, the LED lighting fixture 100 has a regular and aesthetically pleasing light emitting surface.
  • the optical component can be referred to as the optical component 2
  • the annular frame can be referred to as the support member 51.
  • the LED lighting fixture 100 includes a base 1, and the base 1 includes a bottom surface 10 and side walls 11 arranged end to end around the bottom surface 10.
  • a power supply 3 is arranged on the side wall 11, and at least one side of the power supply 3 is in line with the side wall 11.
  • At least one wire hole 103 can also be arranged on the bottom surface 10, so that at least part of the wires of the LED lighting fixture 100 can pass through the wire hole 103 and be conducted to the outside.
  • FIG. 108 is a forward exploded view of an LED lighting fixture 100 in an embodiment of the present invention
  • FIG. 109 which is a schematic diagram of the structure of a base 1 in an embodiment of the present invention.
  • a rectangular coordinate system is established with the light emitting direction of the LED lighting fixture 100 as the Z axis.
  • the LED lighting fixture 100 includes a base 1 arranged at the bottom (i.e., the LED lighting fixture 100 is at the lowest position of the Z axis), and the base 1 includes a bottom surface 10 that is substantially parallel to a horizontal plane or an XY plane.
  • a side wall 11 is arranged at the edge of the bottom surface 10, which surrounds the bottom surface 10 and is connected end to end to form a ring structure.
  • the side wall 11 extends substantially along the Z axis direction, i.e., along the positive direction of the Z axis.
  • the side wall 11 and the bottom surface 10 form a groove with an opening, i.e., a receiving space 12.
  • the light emitting direction of the LED lighting fixture 100 is referred to as the upper side, i.e., the positive direction of the Z axis is referred to as the upper side.
  • An optical assembly 2 is arranged above the base 1.
  • the optical assembly 2 is arranged in the accommodation space 12 formed by the bottom surface 10 and the side wall 11, that is, at least part of the optical assembly 2 is arranged in the accommodation space 12.
  • the optical assembly 2 includes a light source assembly 20, an optical bearing portion 22 and an optical member 21 in sequence along the light emitting direction of the LED lighting fixture 100, that is, the positive direction of the Z axis, wherein the light source assembly 20 can be directly or indirectly arranged on the bottom surface 10, such as being fixed to the bottom surface 10 by glue coating, welding, clamping or screw locking.
  • the light source assembly 20 includes at least one circuit board 202 and at least one LED array 203 arranged on the circuit board 202.
  • the LED array 203 can be an LED chip array or an array composed of other light-emitting devices.
  • in the light source assembly 20 at least one light-emitting device is arranged on the circuit board 202.
  • the circuit board 202 in the present invention can be a plate material that can be used for circuit conduction and realize the function of the circuit board, such as FPC, PCB, aluminum substrate, etc., but is not limited thereto.
  • the circuit board 202 can be arranged along the X direction, the Y direction, the length direction or the width direction of the LED lighting fixture 100, or at a certain angle (intersecting) with the X axis, or at a certain angle intersecting with the Y axis.
  • the light source assembly 20 includes a plurality of circuit boards 202 arranged in parallel, and an optical bearing part 22 is stacked and installed above the light source assembly 20.
  • the optical bearing part 22 has a second prism structure 221' in contact with the bottom surface 10.
  • the second prism structure 221' is integrally formed with the optical bearing part 22, so that at least a portion of the optical bearing part 22 is spaced relative to the bottom surface 10.
  • An optical component 21 is arranged above the optical bearing part 22, and the optical component 21 includes optical units 211 arranged in an array.
  • the optical unit 211 can be an inverted prism structure or a reflective cup structure.
  • a window structure 222 corresponding to the LED array 203 is also arranged on the optical bearing part 22, so that when the optical bearing part 22 is arranged on the bottom surface 10 and covers the light source assembly 20, the light emitted by the LED array 203 in the light source assembly 20 can pass through the window structure 222 and emit outward, reach the optical component 21, and finally emit from the LED lighting fixture 100.
  • the light source assembly 20 , the optical bearing portion 22 , and the optical component 21 are stacked in sequence along the light emitting direction of the LED lighting fixture 100 and accommodated in the accommodation space 12 formed by the base 1 and the side wall 11 .
  • the height of the light source assembly 20, the optical bearing portion 22, and the optical component 21 stacked in sequence along the light emitting direction of the LED lighting fixture 100 does not exceed or is less than or equal to the height of the accommodating space 12, that is, does not exceed or is less than or equal to the height of the side wall 11 along the positive direction of the Z axis, thereby controlling the height of the LED lighting fixture 100 and facilitating subsequent assembly.
  • a support member 51 is provided above the optical member 21 along the light emitting direction or the positive direction of the Z axis.
  • the side of the support member 51 facing the bottom surface 10 covers the outer edge of the optical member 21 and is combined with the side wall 11, that is, the side wall 11 and the support member 51 clamp
  • the optical component 21 is fixed, and the light source assembly 20, the optical bearing part 22, and the optical component 21 are stacked in sequence, so the support member 51 can fix the light source assembly 20 and the optical bearing part 22 to a certain extent, thereby realizing the assembly of the LED lighting fixture 100.
  • the support member 51 and the side wall 11 can be fixed by one or more of the following methods, such as gluing, welding, clamping, nesting, screw locking, magnetic attraction, etc.
  • the present invention also includes a power supply 3, which is arranged on a side of the side wall 11 relatively away from the accommodating space 12, that is, the power supply 3 is arranged outside the accommodating space 12, does not occupy the accommodating space 12 and squeezes the layout space of other components, and does not increase the height of the LED lighting fixture 100 (along the Z-axis direction); and the inclined setting of the side wall 11 will inevitably produce the vacant area, and the power supply 3 is arranged in this space to reduce the occupation of space in other areas.
  • FIG. 110 is a cross-sectional schematic diagram of an LED lighting fixture 100 in an embodiment of the present invention
  • FIG. 111A is a schematic diagram of a light source assembly 20 in an embodiment of the present invention.
  • the light source assembly 20 includes a circuit board 202 and an LED array 203 disposed on the circuit board 202.
  • the LED array 203 includes a plurality of regularly arranged LED chips.
  • the side of the circuit board 202 where the LED array 203 is not disposed is disposed in contact with the bottom surface 10, for example, fixed to the bottom surface 10 by gluing.
  • the optical bearing portion 22 has mutually spaced concave and convex arrangements, which can also be said to be a prism structure without a bottom surface.
  • the prism structures are arranged in an interlaced manner, such as the first prism structure 221 shown in FIG. 110, wherein the prism surface (smaller table surface) of the first prism structure 221 is downward, that is, facing the bottom surface 10, and the prism surface of the first prism structure 221 has a window, that is, a through hole penetrating the prism surface.
  • the window area is smaller than the prism surface, so that a part of the prism surface area can be covered on the circuit board 202, and the LED array 203 is exposed through the window, that is, the window range is larger than the range of the LED array 203.
  • the prism surface adjacent to the first prism structure 221 faces the light emitting direction, that is, the prism surface of the second prism structure 221' is upward, that is, pointing to the positive direction of the Z axis, and the upward prism surface is used to carry the optical component 21.
  • the optical component 21 is formed by a plurality of optical units 211 arranged in an array.
  • the optical unit 211 includes a first optical component 2111 and a plurality of second optical components 2112 arranged around the first optical component.
  • the first optical component 2111 and the second optical component 2112 form a groove structure.
  • the first optical component 2111 at least partially covers the upward prism surface of the optical bearing part 22, that is, the prism surface away from the bottom surface 10, such as the prism surface of the first prism structure 221.
  • each first optical component 2111 corresponds to an LED array 203, and the projection of the first optical component 2111 on the bottom surface 10 along the Z-axis direction can completely cover the LED array 203.
  • the LED array 203 is surrounded by the second prism structure 221'.
  • the side of the prism structure has a light processing function, such as a light reflection function, which can reflect at least a part of the light emitted from the LED array 203, and reflect the part of the light to the first optical component 2111, and then emit from the first optical component 2111. Most of the light from the LED array 203 is directly irradiated to the first optical component 2111.
  • At least a portion of the light emitted from the first optical component 2111 is directly emitted, that is, directly projected outside the LED lighting fixture 100 .
  • At least a portion of the light emitted from the first optical component 2111 is projected onto the second optical component 2112 , and is reflected by the second optical component 2112 before being projected outside the LED lighting fixture 100 .
  • the optical component 21, the optical unit 211, the first optical component 2111, and the second optical component 2112 have at least one of light projection, light reflection, light diffusion, light refraction, light diffraction, etc., or a combination of multiple thereof.
  • the second prism structure 221' adjacent to the first prism structure 221 has a prism surface facing downward and is pressed against the bottom surface 10. That is, the prism surfaces of the optical bearing part 22 are arranged upward and downward with an interval, and at least one-third of the prism surface is provided with a window.
  • the first optical component 2111 of the optical unit 211 is arranged on the prism surface, so that the optical unit 211 (optical component 21) maintains a certain distance from the bottom surface 10, that is, maintains a certain distance or gap from the LED array 203. By maintaining the gap, the granular feeling is avoided when the light is emitted, and the glare problem of the lamp can be effectively reduced.
  • the LED arrays 203 may be disposed on both sides of the circuit board 202 .
  • the support member 51 includes a first wall 511, which is a flat surface and is arranged roughly parallel to the bottom surface 10.
  • the first wall 511 is provided with a first extension portion 5113, a second extension portion 5114 and a third extension portion 5115 pointing to the bottom surface 10 on the side facing the bottom surface 10, wherein the length of the third extension portion 5115 is greater than that of the second extension portion 5114, and the length of the second extension portion 5114 is greater than that of the first extension portion 5113, and the first extension portion 5113, the second extension portion 5114 and the third extension portion 5115 are arranged in sequence toward the edge of the LED lighting fixture 100, that is, away from the optical component 21.
  • a downwardly bent mounting wall 2122 is provided on the outer periphery of the optical component 21, and at least a portion of the support member 51 is supported on the mounting wall 2122.
  • the first extension portion 5113 is provided on the mounting wall 2122, that is, the first extension portion 5113 is covered on the mounting wall 2122, and the end of the mounting wall 2122 abuts against the second extension portion 5114, that is, the first extension portion 5113, the second extension portion 5114, the mounting wall 2122 and the first wall 511 between the first extension portion 5113 and the second extension portion 5114 form a closed cavity, and a glue material can be provided in the closed cavity for connecting the support member 51 and the optical component 21.
  • a first mounting portion 138 and a second mounting portion 139 are provided at one end of the side wall 11 away from the bottom surface 10, wherein the first mounting portion 138 is substantially parallel to the bottom surface 10, and the second mounting portion 139 is substantially perpendicular to the bottom surface 10 and parallel to the third extension portion 5115, and the first mounting portion 138 and the second mounting portion 139 are integrally formed on the side wall 11, or are formed by bending at one end of the side wall 11 away from the bottom surface 10.
  • the power supply 3 is arranged on a side of the first mounting portion 138 facing the bottom surface 10 , and the power supply 3 also includes an inclined surface that fits with the side wall 11 .
  • the first mounting portion 138 and the power supply 3 can be connected by gluing, welding, snapping, locking, screwing, etc.
  • the second mounting portion 139 is arranged on the inner side of the third extension portion 5115, that is, the side of the third extension portion 5115 close to the optical component 21, and is fitted with the third extension portion 5115.
  • the two can be connected and fixed by gluing, welding, snapping, clamping, screw locking, etc.
  • the above connection enables the optical component 21 to be fixed by the support member 51 and the base 1, thereby realizing the packaging of the lamp.
  • the LED lighting fixture 100 also includes a power cord box 6, which is disposed on a side wall 11 perpendicular to the bottom surface 10, and an optical bearing portion 22 is provided with an avoidance portion 223 near the side wall 11 perpendicular to the bottom surface 10, so that there is no interference between the power cord box 6 and the optical bearing portion 22.
  • the power cord box 6 is used to store some electronic components required by the lamp, such as a transformer, a light source control module, etc., and a part of the wires are also stored therein to improve the cleanliness of the interior of the lamp.
  • the power cord box 6 may also directly accommodate the power supply 3 , thereby eliminating the need to arrange the power supply 3 outside the side wall 11 .
  • the circuit board 202 has a concave portion and a convex portion disposed opposite to each other, and the circuit board 202 is cut from a plate.
  • the concave and convex parts correspond to each other, that is, the convex part of one circuit board 202 is embedded in the concave part of the other light source board, that is, the concave and convex parts are relatively staggered when the two corresponding circuit boards 202 are not cut, so that more single circuit boards 202 can be cut from the whole board of circuit boards 202 with the same area.
  • the LED array 203 (or LED lamp beads 201) is arranged on the convex part.
  • FIG. 111B shows another embodiment of the circuit board 202 of the present invention.
  • FIG 113 is a schematic diagram of some components in an LED lighting fixture 100 in another embodiment of the present invention.
  • the basic structure of this embodiment is the same as that of the aforementioned embodiment, except that in this embodiment, the independent optical bearing part 22 is eliminated, and part or all of the functions of the optical bearing part 22 are realized by an integrally formed groove or step on the base 1.
  • FIG. 114 it is a front view of the structure of the base 1 in another embodiment of the present invention.
  • a groove extending in the length or width direction is provided on the bottom surface 10 of the base 1.
  • the bottom surface groove 101 has different functions in different embodiments, such as serving as a light source groove, a power source groove, a reinforcement structure, etc.
  • it serves as a light source groove 1017, which is integrally formed on the bottom surface 10, such as die casting, stretching, stamping, etc.
  • the number of light source grooves 1017 is at least one, more specifically at least two, and the light source assembly 20 is disposed in the light source groove 1017 and is attached to the bottom surface of the groove 1017.
  • the bottom surface 10 also includes a power source groove 1018, which is used to accommodate the power cord box 6 mentioned above.
  • the power cord box 6 is provided with a power source 3, and an external power source 3 is not required.
  • FIG. 115 is a schematic diagram of the back side of the base 1 in another embodiment of the present invention. Combining FIG. 114 and FIG. 115 , it can be seen that the depth of the power groove 1018 is less than the depth of the light source groove 1017 .
  • FIG. 116 is a schematic diagram of the assembly of the power cord box 6 and the base 1 , in which the power cord box 6 is at least partially accommodated in the power groove 1018 .
  • FIG. 117 it is a schematic cross-sectional view along the length direction of the LED lighting fixture 100 in another embodiment of the present invention.
  • the optical component 21 is mounted on the bottom surface 10
  • the optical unit 211 corresponds to the light source groove 1017, and further corresponds to the LED array 203 on the light source assembly 20 in the light source groove 1017.
  • the optical component 21 and the light source assembly 20 are kept at a sufficient distance to meet the light output effect.
  • the optical component 21 is an integrally formed structure, for example, formed by integrally hot pressing, stamping, vacuum forming, or the like of a plastic material.
  • the light source groove 1017 may also be arranged along a direction parallel to the width of the LED lighting fixture 100 .
  • FIGS 118 to 121 are schematic diagrams of an LED lighting fixture 100 in an embodiment of the present invention.
  • the basic structure of this embodiment is the same as that of the aforementioned embodiment, except that in this embodiment, the independent optical bearing portion 22 of the aforementioned embodiment is cancelled, and a support portion 21126 is provided with an optical component 21 (refer to Figure 121, Figure 121 is a partial enlarged view of point Z in Figure 120) to achieve part or all of the functions of the optical bearing portion 22 of the aforementioned embodiment; in addition, a directional diffusion film 213 and a prism plate 214 are added to improve the light emitting effect of the LED lighting fixture 100, meet the lighting requirements of specific occasions, and enhance the visual effect.
  • FIG. 119 is a schematic diagram of the forward decomposition of the LED lighting fixture 100 in one embodiment of the present invention, or a decomposition diagram along the light emitting direction.
  • a rectangular coordinate system is established with the light emitting direction of the LED lighting fixture 100 as the Z axis.
  • the exploded view of the LED lighting fixture 100 is exploded along the positive direction of the Z axis.
  • the LED lighting fixture 100 includes: a base 1 and an optical component 2 arranged at the bottom (i.e., the LED lighting fixture 100 is at the lowest position of the Z axis), the optical component 2 is arranged on the base 1, and the LED lighting fixture 100 may also include a mounting frame 5, the mounting frame 5 includes a plurality of support members 51, the support members 51 (or the mounting frame 5) are connected to the base 1, and the optical component 2 is fixed to the base 1, that is, the support members 51 and the base 1 clamp the optical component 2.
  • the base 1 includes a bottom surface 10 and a side wall 11 which are roughly parallel to a horizontal plane or an XY plane.
  • the side wall 11 extends roughly along the Z-axis direction, that is, along the positive direction of the Z-axis.
  • the side wall 11 and the bottom surface 10 form a groove with an opening, that is, the bottom surface 10 and the side wall 11 form a receiving space 12, and the optical component 2 is received in the receiving space 12.
  • the light emitting direction of the LED lighting fixture 100 is referred to as the upper side, that is, the positive direction of the Z-axis is referred to as the upper side.
  • the bottom surface 10 is roughly rectangular, such as a square or a rectangle, and can also be set to other shapes as needed.
  • the bottom surface 10 is rectangular.
  • the material of the bottom surface 10 is preferably a metal material to ensure the structural strength of the bottom surface 10 and avoid deformation during use.
  • the material of the bottom surface 10 is more preferably a metal material with good thermal conductivity, which is conducive to the heat dissipation of the LED lighting fixture 100.
  • the metal material has a high structural strength, ensures the stability of the operation of the LED lighting fixture 100, and can also extend the service life of the LED lighting fixture 100.
  • the bottom surface 10 may be made of a light-transmitting material, such as a transparent material, a translucent material, or an opaque material.
  • a light-transmitting material such as a transparent material, a translucent material, or an opaque material.
  • the material of the bottom surface 10 may be a transparent material or a translucent material, and part of the light is emitted from the back of the LED lighting fixture 100, which can eliminate the dark shadow on the back of the LED lighting fixture 100 and improve the overall lighting effect of the LED lighting fixture 100.
  • the bottom surface 10 may be set to be fully light-transmitting, or partially light-transmitting, or at least partially light-transmitting, and of course, it may also be completely opaque.
  • the side wall 11 can be arranged at the outer edge of the bottom surface 10 or at the outer edge of the bottom surface 10.
  • the side wall 11 is arranged around the bottom surface 10 to form a ring-shaped structure of the side wall 11 connected end to end, and forms a receiving space 12 with the bottom surface 10.
  • the side wall 11 can not only enhance the overall structural strength of the base 1, but also prevent foreign objects such as dust and insects from entering the LED lighting fixture 100 through the side wall 11.
  • the base 1 may include a plurality of side walls 11 arranged at intervals.
  • the side wall 11 extends along the light emitting direction of the LED lighting fixture 100 to form a certain height, and forms a housing space 12 with the bottom surface 10.
  • the height of the side wall 11 determines the depth of the housing space 12.
  • the optical component 2 is disposed in the housing space 12, and the height of the side wall 11 can be set according to actual needs.
  • the thickness of the optical component 2 in the light emitting direction of the LED lighting fixture 100 is less than or equal to the depth of the housing space 12, that is, less than or equal to the height of the side wall 11 in the light emitting direction of the LED lighting fixture 100, so as to control the height of the LED lighting fixture 100 and facilitate subsequent assembly.
  • the side wall 11 can be made of a light-transmitting material or an opaque material, such as a transparent material, a translucent material, or an opaque material alone, or at least two of them, and can be set according to actual needs to meet the lighting needs of different occasions, such as making the side wall 11 completely transparent, or completely opaque, or partially transparent, partially opaque (or at least partially transparent, or at least partially opaque, and the bottom surface 10 can also be the same).
  • the material of the side wall 11 is preferably a metal material, and the material of the side wall 11 is more preferably a metal material with good thermal conductivity, while ensuring the strength and heat dissipation effect of the side wall 11.
  • the side wall 11 and the bottom surface 10 may be a split structure or an integral structure.
  • the side wall 11 and the bottom surface 10 may be connected by gluing, welding, clamping or screwing.
  • the side wall 11 and the bottom surface 10 are integrally formed, the side wall 11 and the bottom surface 10 are preferably made of the same material, which is beneficial to the production and manufacturing of the base 1.
  • the side wall 11 and the bottom surface 10 are integrally formed, which can improve the bonding force between the side wall 11 and the bottom surface 10, and can also improve the dimensional accuracy of the base 1, and is also beneficial to batch manufacturing and reducing production costs.
  • the bottom surface 10 and the side wall 11 are integrally stamped from the same material, such as a metal material, or the side wall 11 and the bottom surface 10 are formed by bending on a metal surface.
  • the bottom surface 10 may be provided with a bottom surface groove 101, which may be a reinforcing rib.
  • the bottom surface groove 101 may be provided on a side of the bottom surface 10 facing the accommodating space 12, or may be provided on a side of the bottom surface 10 facing away from the accommodating space 12.
  • the bottom surface groove 101 is provided on both sides of the bottom surface 10, and the bottom surface groove 101 and the bottom surface 10 are integrally formed, such as by die casting, stretching, stamping, etc.
  • the bottom surface groove 101 is raised or recessed relative to the bottom surface 10 to form a three-dimensional structure, and the bottom surface groove 101 can further enhance the structural strength of the bottom surface 10.
  • the base 1 may also be provided with a hanging support 4, which includes a plurality of hooks 43 connected to the chassis 1.
  • the number of the hooks 43 may be one or more, and the hooks 43 may be arranged at the middle position of the bottom surface 10 or at the peripheral position of the bottom surface 10. In this embodiment, the number of the hooks 43 is four, and the hooks 43 are arranged at two opposite edge positions of the bottom surface 10, that is, two hooks 43 are arranged on each side.
  • the hooks 43 and the bottom surface 10 may be connected by glue coating, welding, clamping or screw locking.
  • the position of the hooks 43 may be other positions of the bottom surface 10 or the side wall 11.
  • the optical assembly 2 is disposed in the accommodating space 12.
  • the optical assembly 2 may include a light source assembly 20 and an optical component 21.
  • the light source assembly 20 is disposed on the bottom surface 10 of the base 1.
  • the optical component 21 is disposed on a side of the light source assembly 20 away from the base 1, that is, the optical component 21 is covered by the light source assembly 20.
  • the light source assembly 20 may generate and emit light, and the light of the light source assembly 20 may pass through the optical component 21.
  • the optical component 21 may process the light generated by the light source assembly 20, which may be one of light projection, light reflection, light diffusion, light refraction, light diffraction, etc., or a combination of multiple thereof.
  • the optical component 21 may include a directional diffusion film 213.
  • the directional diffusion film 213 may deflect light in a specific direction through a micro-optical array structure arranged on its surface, such as a micro-prism array or a protrusion array, or the directional diffusion film 213 itself is composed of plate-shaped areas with different refractive indices arranged alternately in parallel along any direction of the film surface to guide the light to diffuse in a specific direction, that is, the directional diffusion film 213 has the function of diffusing light in a specific direction.
  • the directional diffusion film 213 may also be called a bat wing diffusion film, a bat wing film, an anisotropic diffusion film, a unidirectional diffusion film, and a directional diffusion film.
  • Film 213 may be a bat-wing diffusion film such as the B-series of Bright view, or a diffusion film with a specific surface microstructure as described in patent CN110998176B, that is, the directional diffusion film 213 in this article can be described as a bat-wing diffusion film, a bat-wing film, an anisotropic diffusion film, or a unidirectional diffusion film.
  • the directional diffusion film 213 can diffuse the light processed by it or passing through the directional diffusion film 213 in a predetermined direction, that is, it diffuses light in a biased manner to achieve different light-emitting effects, such as realizing a bat-wing light type.
  • FIG. 122A is a simplified schematic diagram of a directional diffusion film 213 in an embodiment of the present invention.
  • the directional diffusion film 213 can be implemented as a rectangular structure, more specifically a square structure.
  • the diffusion direction of the directional diffusion film 213 is shown by the arrow in the figure, that is, after being processed by the directional diffusion film 213, the light passing through it diffuses to the two opposite sides of the rectangle, rather than randomly diffusing to form uniform light output around (up, down, left, and right), and its subsequent light output is more concentrated on the two opposite sides.
  • the directional diffusion film 213 when the directional diffusion film 213 is set in a coordinate system, it can also be described that its light diffusion direction is mainly concentrated in the positive and negative directions of the X axis, rather than uniformly diffusing in the positive and negative directions of the X axis and the positive and negative directions of the Y axis to form a Lambertian light type.
  • the diffusion direction of the directional diffusion film 213 can be set to one or more, or at least have two diffusion directions.
  • the directional diffusion film 213 can change the light output direction of the LED lighting fixture 100 to increase the beam angle of the light output of the LED lighting fixture 100, so that the light type after the light output of the LED lighting fixture 100 is a bat wing light type or an improved Lambertian type, further improving the light output effect of the LED lighting fixture 100, meeting the lighting requirements of specific occasions, and enhancing the visual effect.
  • the directional diffusion film 213 can also have only one diffusion direction, but its diffusion direction can be different with the placement position (orientation) of the directional diffusion film 213.
  • the light output of the light source assembly 20 is directional controlled by the directional diffusion film 213, that is, the final pointing direction of its diffusion direction is the light concentration direction, thereby realizing the purposeful control of the light concentration area, thereby realizing the bat wing light type or the improved Lambertian type.
  • each directional diffusion film 213 there are multiple directional diffusion films 213, and the number of directional diffusion films 213 corresponds to the number of LED arrays 203.
  • One directional diffusion film 213 is arranged corresponding to one LED array 203.
  • the directional diffusion film 213 is arranged in front of the light emitting direction of the LED array 203, and the light of the LED array 203 is emitted through the directional diffusion film 213.
  • Each directional diffusion film 213 is independent of each other.
  • the relative position of the directional diffusion film 213 relative to the light source assembly 20 can be changed, and then the direction of the diffusion direction of the directional diffusion film 213 can be changed, thereby changing the light type after the light of the LED lighting fixture 100 is emitted.
  • the multiple directional diffusion films 213 have a variety of arrangements and combinations, thereby forming a variety of light types after the light of the LED lighting fixture 100 is emitted.
  • FIG 122B is a schematic diagram of the distribution of a directional diffusion film 213 of an LED lighting fixture 100 in an embodiment of the present invention.
  • the LED lighting fixture 100 is provided with sixteen directional diffusion films 213, and distributed in a 4*4 pattern.
  • the light diffusion direction formed by each directional diffusion film 213 for the light output is in the same direction relative to the LED lighting fixture 100, as indicated by the arrow in Figure 122B.
  • the optical unit 211 includes sixteen optical components 21, four optical components 21 are arranged in a row along the X direction, and four optical components 21 are arranged in a column along the Y direction.
  • Each optical component 21 is provided with a corresponding directional diffusion film 213, that is, the number of directional diffusion films 213 is sixteen, four directional diffusion films 213 are arranged in a row along the X direction, and four directional diffusion films 213 are arranged in a column along the Y direction.
  • Each directional diffusion film 213 has two diffusion directions, and the two diffusion directions are respectively oriented in the positive direction and the negative direction of the X axis.
  • the diffusion directions of the directional diffusion films 213 are set to be the same, that is, the diffusion directions of each directional diffusion film 213 are along the positive direction and the negative direction of the X-axis, that is, the diffusion direction is along the two opposite outer frames of the LED lighting fixture 100, more specifically, along the two frames in the positive and negative directions of the X-axis, so that the final light output of the LED lighting fixture 100, the light intensity/luminous flux along the positive and negative directions of the X-axis is significantly greater than the light intensity/luminous flux along the positive and negative directions of the Y-axis, that is, based on the XY coordinate, From the perspective of the standard system, with the center of the LED lighting fixture 100 as the origin and the center of the circle, on the circumference of the same radius, the light intensity close to the
  • FIG 123 which is a light pattern after the LED lighting fixture 100 in one embodiment of the present invention emits light.
  • the diffusion direction of the directional diffusion film 213 is set as shown in Figure 122B, so that the light pattern of the LED lighting fixture 100 after the light is emitted is a bat-wing light pattern.
  • the bat-wing light type improves the light output effect of the LED lighting fixture 100, meets the lighting requirements of specific occasions, and enhances the visual effect.
  • the optical unit 211 includes sixteen optical components 21, four optical components 21 are arranged in a row along the X direction, and four optical components 21 are arranged in a column along the Y direction.
  • Each optical component 21 is provided with a directional diffusion film 213, that is, the number of directional diffusion films 213 is sixteen, four directional diffusion films 213 are arranged in a row along the X direction, and four directional diffusion films 213 are arranged in a column along the Y direction.
  • Each directional diffusion film 213 has two diffusion directions.
  • the four directional diffusion films 213 in the first column and the four directional diffusion films 213 in the fourth column, the two diffusion directions of each directional diffusion film 213 are respectively oriented in the positive direction and the negative direction of the X axis.
  • the four directional diffusion films 213 in the second column and the four directional diffusion films 213 in the third column, the two diffusion directions of each directional diffusion film 213 are respectively oriented in the positive direction and the negative direction of the Y axis.
  • the diffusion directions of the directional diffusion films 213 in the first and fourth columns are perpendicular to the diffusion directions of the directional diffusion films 213 in the second and third columns, that is, 1/2 of the diffusion directions of the directional diffusion films 213 are along the positive and negative directions of the X axis, and the other 1/2 are along the positive and negative directions of the Y axis, and the distribution is uniform and symmetrical, so that the LED lighting fixture 100 is finally viewed from the XY coordinate system, with the center of the LED lighting fixture 100 as the origin and the center of the circle, and on the circumference with the same radius, the light intensity/luminous flux close to the X axis direction is roughly close to the light intensity/luminous flux close to the Y axis direction, that is, the light intensity/luminous flux distribution is centered on the light source, and when the distance from the light source is equal, the light intensity/luminous flux on both sides (near the X axis direction) is roughly close to the middle (near the Y axis direction), thereby
  • FIG. 124 is a schematic diagram of the distribution of another directional diffusion film 213 of the LED lighting fixture 100 in an embodiment of the present invention, that is, as shown in the figure, the LED lighting fixture 100 is provided with sixteen directional diffusion films 213, and are distributed in 4*4, the diffusion directions of the two middle rows of directional diffusion films 213 are in the same direction relative to the LED lighting fixture 100, the diffusion directions of the two rows of directional diffusion films 213 on both sides are in the same direction relative to the LED lighting fixture 100, and are arranged perpendicular to the diffusion direction of the two middle rows of directional diffusion films 213 relative to the LED lighting fixture 100, that is, there are at least two diffusion directions of the directional diffusion films 213, and the two diffusion directions are perpendicular to each other, that is, the diffusion directions are uniformly distributed along the four sides of the LED lighting fixture 100, as shown by the arrows in Figure 124.
  • FIG125 is another light pattern of the LED lighting fixture 100 in another embodiment of the present invention.
  • the diffusion direction of the directional diffusion film 213 is set as shown in FIG124, so that the light pattern of the LED lighting fixture 100 after the light is emitted is an improved Lambertian type, which improves the light emission effect of the LED lighting fixture 100, meets the lighting requirements of specific occasions, and enhances the visual effect.
  • the diffusion directions of adjacent directional diffusion films 213 in each row may cross each other (not limited to being perpendicular), or the diffusion directions of adjacent directional diffusion films 213 in each column may be parallel to each other.
  • the light source assembly 20 can be directly or indirectly disposed on the bottom surface 10, such as being fixed to the bottom surface 10 by gluing, welding, clamping, or screwing.
  • the number of circuit boards 202 can be one or more, and the length of each circuit board 202 can be the same or different, depending on actual needs.
  • the circuit board 202 can be a plate material that can be used for circuit conduction and realize the function of the circuit board, such as FPC, PCB, aluminum substrate, etc., but is not limited thereto.
  • the circuit board 202 can be disposed along the length direction or width direction of the bottom surface 10, or can be disposed crosswise along the length direction and width direction of the bottom surface 10.
  • the circuit board 202 is arranged substantially parallel to the bottom surface 10, and may also be arranged at an angle to the bottom surface 10. By adjusting the number and arrangement of the circuit boards 202, LED lighting fixtures 100 with different brightness and light emission effects can be obtained. At least one LED array 203 is arranged on each circuit board 202, and the LED array 203 may be arranged on any side of the circuit board 202 or on both sides of the circuit board 202.
  • the LED array 203 may be an array of LED chips or an array composed of other light-emitting devices.
  • the optical component 21 may further include a prism plate 214 and an optical unit 211.
  • One prism plate 214 is arranged corresponding to one LED array 203.
  • the prism plate 214 is arranged in front of the light emitting direction of the LED array 203, that is, the side of the LED array 203 away from the bottom surface 10.
  • the light of the LED array 203 is emitted through the prism plate 214.
  • the prism plate 214 can refract or reflect the light, or both at the same time, so as to achieve the diffusion and scattering of the light.
  • the prism plate 214 can convert the direct light emitted by the light source array 2012 into scattered light to achieve a more uniform lighting effect.
  • the directional diffusion film 213 is arranged in front of the prism plate 214, that is, the light of the LED array 203 first passes through the prism plate 214, and then is emitted through the directional diffusion film 213, achieving multiple light processing, or multiple light diffusion.
  • the optical unit 211 includes an optical component 21, the number of the optical components 21 corresponds to the number of the LED arrays 203, one optical component 21 is arranged corresponding to one LED array 203, and the optical component 21 can contain the LED array 203.
  • the multiple optical components 21 can be independent of each other, that is, each optical component 21 is independently formed, and the multiple optical components 21 are spliced to form the optical unit 211 by glue coating, welding, clamping or screw locking. It is also possible to form several optical components 21 in one piece, and then splice them to form the optical unit 211 by glue coating, welding, clamping or screw locking.
  • optical components 21 can be spliced to form optical units 211 of different numbers and shapes as needed, meet the needs of different application scenarios, and facilitate the replacement of damaged optical components 21, without the need to replace the entire optical unit 211, saving maintenance costs.
  • the optical unit 211 can also be formed in one piece by multiple optical components 21.
  • the optical component 21 may be an inverted prism structure, i.e., a reflective cup structure.
  • the prism surface of the optical component 21 has a window, i.e., a through hole that penetrates the prism surface of the optical component 21.
  • the end of the optical component 21 with a small opening faces the light source assembly 20, and the end of the optical component 21 close to the light source assembly 20 is provided with a first clamping portion 211262, and the directional diffusion film 213 and the prism plate 214 are connected to the optical component 21 through the first clamping portion 211262.
  • the directional diffusion film 213 and the prism plate 214 can be connected to different first clamping portions 211262 respectively, and the directional diffusion film 213 and the prism plate 214 can also be clamped to the same first clamping portion 211262 at the same time, and the directional diffusion film 213 and the prism plate 214 are connected to each other.
  • the directional diffusion film 213 can form a sealing structure with the opening of the optical component 21 to prevent foreign objects such as dust and insects from entering the LED lighting fixture 100 from the side wall 11 .
  • a support portion 21126 is provided at one end of the optical member 21 close to the light source assembly 20, and the support portion 21126 is preferably formed integrally with the optical member 21.
  • the support portion 21126 contacts the bottom surface 10, so that there is a gap between the optical member 21 and the bottom surface 10, and there may also be a gap between the directional diffusion film 213 and the prism plate 214 and the bottom surface 10.
  • the LED lighting fixture 100 further includes a power supply 3 and a power supply box 6.
  • the installation positions of the power supply 3 and the power supply box 6 are the same or similar to those in the above-mentioned embodiment.
  • the circuit board 202 has a concave portion 2021 and a convex portion 2022 arranged opposite to each other.
  • the circuit board 202 may also be provided with one or more circuit board mounting holes 2023.
  • a fixing member such as a screw may pass through the circuit board mounting hole 2023 to fix the circuit board 202 and the bottom surface 10.
  • an adhesive or heat dissipation adhesive may be provided on the front and back sides of the circuit board 202 and the bottom surface 10 to fix the circuit board 202 and the bottom surface 10, thereby enhancing the connection strength between the circuit board 202 and the bottom surface 10.
  • FIG 111D is a schematic diagram of cutting multiple circuit boards 202 in the present invention.
  • the width of the recessed portion 2021 of the circuit board 202 is approximately equal to the width of the convex portion 2022 of the circuit board 202.
  • the recessed portion 2021 and the convex portion 2022 are staggered along the length direction of the circuit board 202, so that more individual circuit boards 202 can be cut from a circuit board of the same area.
  • FIG. 126 is a schematic diagram of an LED lighting fixture 100 in an embodiment of the present invention
  • FIG. 127 is a schematic diagram of a forward decomposition of the LED lighting fixture 100 in an embodiment of the present invention, or a decomposition diagram along the light emitting direction.
  • a rectangular coordinate system is established with the light emitting direction of the LED lighting fixture 100 as the Z axis, and the decomposition diagram of the LED lighting fixture 100 is decomposed along the positive direction of the Z axis.
  • the LED lighting fixture 100 includes: a base 1 and an optical component 2 arranged at the bottom (i.e., the LED lighting fixture 100 is at the lowest position of the Z axis), the optical component 2 is arranged on the base 1, and the LED lighting fixture 100 may also include a support member 51, the support member 51 is connected to the base 1, and the optical component 2 is fixed to the base 1, that is, the support member 51 and the base 1 clamp the optical component 2.
  • the basic structure of this embodiment is the same as that of the aforementioned embodiment, except that in this embodiment, the independent optical bearing portion 22 of the aforementioned embodiment is cancelled, and a support portion 21126 (refer to FIG135) is provided with an optical component 21 to implement part or all of the functions of the optical bearing portion 22 of the aforementioned embodiment; referring to FIG127, a reflective paper 216 is added, and the prism plate 214 is replaced with a light guide plate 215, and the light source assembly 20 is arranged on both sides of the light guide plate 215, so that the light emitted by the light source assembly 20 enters from the side of the light guide plate 215, thereby improving the light emission effect of the LED lighting fixture 100, meeting the lighting requirements of specific occasions, and enhancing the visual effect.
  • the base 1 includes a bottom surface 10 and a side wall 11 that are substantially parallel to a horizontal plane or an XY plane.
  • the side wall 11 extends substantially in the same direction along the Z axis, that is, extends along the positive direction of the Z axis.
  • the side wall 11 and the bottom surface 10 form a groove with an opening, that is, the bottom surface 10 and the side wall 11 form a receiving space 12, and at least part of the optical component 2 is received in the receiving space 12.
  • the side wall 11 is inclined relative to the bottom surface 10, and the side wall 11 is inclined outward, that is, the side wall 11 is inclined away from the optical component 2. It can also be said that the distance between the two opposite side walls 11 gradually increases along the light emitting direction of the LED lighting fixture 100.
  • the light emitting direction of the LED lighting fixture 100 is referred to as upward, that is, the positive direction of the Z axis is referred to as upward.
  • the bottom surface 10 is roughly rectangular, such as a square or a rectangle, and can also be set to other shapes as needed. In the present embodiment, the bottom surface 10 is rectangular, and the bottom surface 10 has a relative length and width.
  • the material of the bottom surface 10 is preferably a metal material to ensure the structural strength of the bottom surface 10 and avoid deformation during use.
  • the material of the bottom surface 10 is more preferably a metal material with good thermal conductivity, which is beneficial to the heat dissipation of the LED lighting fixture 100.
  • the metal material has a high structural strength, which ensures the stability of the operation of the LED lighting fixture 100 and can also extend the service life of the LED lighting fixture 100.
  • the bottom surface 10 may also be made of a light-transmitting material, such as a transparent material, a semi-transparent material or an opaque material.
  • a light-transmitting material such as a transparent material, a semi-transparent material or an opaque material.
  • the material of the bottom surface 10 can be a transparent material or a translucent material, and part of the light is emitted from the back of the LED lighting fixture 100, which can eliminate the dark shadow on the back of the LED lighting fixture 100 and improve the overall lighting effect of the LED lighting fixture 100.
  • the bottom surface 10 can be set to be fully light-transmissive, or partially light-transmissive, or at least partially light-transmissive, and of course it can also be completely light-proof.
  • the base 1 can be made of a color-changing material, such as an electrochromic material or a temperature-controlled color-changing material, and the light transmittance of the base 1 can change within a range of 0% to 100%. That is, the bottom surface 10 and the side wall 11 of the base 1 are made of a color-changing material, and the light transmittance of the bottom surface 10 and the side wall 11 of the base 1 changes within a range of 0% to 100%.
  • the bottom surface 10 and the side wall 11 of the base 1 are made of color-changing material, and the light transmittance of at least one of the bottom surface 10 and the side wall 11 of the base 1 changes within a range of 0% to 100%.
  • the side wall 11 can be arranged at the outer edge of the bottom surface 10 or at the outer edge of the bottom surface 10.
  • the side wall 11 is arranged around the bottom surface 10 to form a ring-shaped structure of the side wall 11 connected end to end, and forms a receiving space 12 with the bottom surface 10.
  • the side wall 11 can not only enhance the overall structural strength of the base 1, but also prevent foreign objects such as dust and insects from entering the LED lighting fixture 100 through the side wall 11.
  • the base 1 may include a plurality of side walls 11 arranged at intervals.
  • the side wall 11 extends along the light emitting direction of the LED lighting fixture 100 to form a certain height, and forms a housing space 12 with the bottom surface 10.
  • the height of the side wall 11 determines the depth of the housing space 12.
  • the optical component 2 is disposed in the housing space 12, and the height of the side wall 11 can be set according to actual needs.
  • the thickness of the optical component 2 in the light emitting direction of the LED lighting fixture 100 is less than or equal to the depth of the housing space 12, that is, less than or equal to the height of the side wall 11 in the light emitting direction of the LED lighting fixture 100, so as to control the height of the LED lighting fixture 100 and facilitate subsequent assembly.
  • the side wall 11 can be made of a light-transmitting material or an opaque material, such as a transparent material, a translucent material, or an opaque material alone, or at least two of them, and can be set according to actual needs to meet the lighting needs of different occasions, such as making the side wall 11 completely transparent, or completely opaque, or partially transparent, partially opaque (or at least partially transparent, or at least partially opaque, and the bottom surface 10 can also be the same).
  • the material of the side wall 11 is preferably a metal material, and the material of the side wall 11 is more preferably a metal material with good thermal conductivity, while ensuring the strength and heat dissipation effect of the side wall 11.
  • the side wall 11 and the bottom surface 10 can be a split structure or an integrally formed structure.
  • the side wall 11 and the bottom surface 10 can be connected by glue coating, welding, clamping or screw locking.
  • the material of the side wall 11 and the bottom surface 10 is preferably the same material, which is conducive to the production and manufacturing of the base 1.
  • the side wall 11 and the bottom surface 10 adopt an integrally formed structure, which can improve the bonding force between the side wall 11 and the bottom surface 10, and can also improve the dimensional accuracy of the base 1. At the same time, it is also conducive to batch manufacturing and reduces production costs.
  • the bottom surface 10 and the side wall 11 are formed by integrally stamping the same material, such as a metal material, or the side wall 11 and the bottom surface 10 are formed by bending on a metal surface.
  • FIG. 131 is a partial enlarged view of the B' position in FIG. 129 .
  • a limiting portion 135 may be provided at one end of the side wall 11 away from the bottom surface 10 .
  • the limiting portion 135 is arched toward the light emitting direction of the LED lighting fixture 100 .
  • the limiting portion 135 is provided around the side wall 11 to form a limiting portion 135 of an annular structure connected end to end.
  • the limiting portion 135 can not only enhance the overall structural strength of the base 1 , but also when the support member 51 and the base 1 clamp the optical component 2, the limiting portion 135 can abut against the optical component 2. 2, the optical component 2 can be better fixed.
  • the limiting portion 135 can also have a certain elasticity, so it can be suitable for clamping optical components 2 of different thicknesses. That is, when the limiting portion 135 corresponds to a thicker optical component 2, the deformation of the limiting portion 135 becomes larger, and the optical component 2 can be stably clamped. When the limiting portion 135 corresponds to a thinner optical component 2, the deformation of the limiting portion 135 becomes smaller, and the optical component 2 can also be stably clamped.
  • the base 1 can include a plurality of limiting portions 135 arranged at intervals.
  • a supporting portion 136 may be provided at one end of the limiting portion 135 away from the side wall 11.
  • the supporting portion 136 is substantially parallel to the bottom surface 10.
  • the supporting portion 136 is provided around the limiting portion 135 to form a supporting portion 136 of an annular structure connected end to end.
  • the support member 51 and the base 1 may be connected by glue coating, welding, clamping or screw locking.
  • the supporting portion 136 is connected to the support member 51 by screws.
  • the outer edge of the supporting portion 136 is contracted to the outer edge of the support member 51, that is, the outer edge of the supporting portion 136 is located on the inner side of the outer edge of the support member 51 and does not exceed the outer edge of the support member 51.
  • the support member 51 can partially cover the outer edge of the base 1, thereby improving the aesthetics of the LED lighting fixture 100.
  • the base 1 may include a plurality of limiting portions 135 arranged at intervals.
  • the support member 51 extends a certain distance in a direction parallel to the bottom surface 10, that is, the position of the support member 51 corresponding to the limiting portion 135 is preferably set to the first wall 511, and the first wall 511 and the limiting portion 135 jointly clamp the optical component 2.
  • a step structure 5122 is set on the outer side of the first wall 511, which includes a first step portion 51225 and a second step structure 51226, the first step portion 51225 abuts against the supporting portion 136, and the second step structure 51226 surrounds the outer side of the supporting portion 136.
  • the step structure 5122 can enhance the structural strength of the support member 51, wherein the first step portion 51225 is set around the first wall 511 to form a first step portion 51225 of an annular structure connected end to end.
  • the first step portion 51225 may be provided with a locking groove 51223, which may be U-shaped, and the side of the locking groove 51223 may be provided with a thread (not shown).
  • the supporting portion 136 is connected to the support member 51 by screws, the screws match the threads on the side of the locking groove 51223, so that the connection between the base 1 and the support member 51 is more stable.
  • the depth of the locking groove 51223 is preferably less than the length of the screw, and the length of the screw is preferably less than the depth of the first step portion 51225.
  • the support member 51 may include a plurality of first step portions 51225 arranged at intervals.
  • a second step portion 51226 may be provided on the outer side of the first step portion 51225.
  • the second step portion 51226 may further enhance the structural strength of the support member 51.
  • the second step portion 51226 is provided around the first step portion 51225 to form a second step portion 51226 of an annular structure connected end to end.
  • the support member 51 may include a plurality of second step portions 51226 arranged at intervals.
  • the first step portion 51225 and the second step portion 51226 are preferably convex toward the bottom surface 10, so that the side of the support member 51 facing the light emitting direction of the LED lighting fixture 100 is a plane, making the LED lighting fixture 100 more beautiful as a whole.
  • the bottom surface 10 may be provided with a bottom surface groove 101, which may be a reinforcing rib.
  • the bottom surface groove 101 may be provided on a side of the bottom surface 10 facing the accommodation space 12, or may be provided on a side of the bottom surface 10 facing away from the accommodation space 12.
  • the bottom surface groove 101 is provided on both sides of the bottom surface 10.
  • the bottom surface groove 101 and the bottom surface 10 are provided on the bottom surface 10. It is formed in one piece, such as die casting, stretching, stamping, etc.
  • the bottom surface groove 101 is convex or concave relative to the bottom surface 10 to form a three-dimensional structure, and the bottom surface groove 101 can further enhance the structural strength of the bottom surface 10.
  • the base 1 may be provided with a hook 43, and the number of the hooks 43 may be one or more, and the hooks 43 may be provided at the middle position of the base 1 or at the peripheral position of the base 1.
  • the number of the hooks 43 is four, and the hooks 43 are provided at two opposite supporting portions 136 of the base 1, that is, two hooks 43 are provided at each supporting portion 136.
  • the hooks 43 and the base 1 may be connected by glue coating, welding, clamping or screw locking.
  • the hooks 43 and the base 1 are connected by screws, and the screws may also be connected to the locking grooves 51223 of the support member 51, that is, the screws may simultaneously connect the hooks 43, the base 1 and the support member 51, thereby reducing repeated connection and multiple punching to damage the lamp body structure, and connecting multiple components at one time may reduce the use of fixings such as screws, thereby reducing the production cost of the LED lighting fixture 100.
  • the optical assembly 2 is disposed in the accommodating space 12, and the optical assembly 2 may include a light source assembly 20 and an optical component 21.
  • the light source assembly 20 may generate and emit light, and the light of the light source assembly 20 may pass through the optical component 21, and the optical component 21 may process the light generated by the light source assembly 20, which may be one of light projection, light reflection, light diffusion, light refraction, light diffraction, etc., or a combination of multiple thereof.
  • the optical component 21 may include an optical unit 211, a directional diffusion film 213 and a light guide plate 215.
  • the directional diffusion film 213 and the light guide plate 215 are arranged parallel or substantially parallel to the bottom surface 10, and the directional diffusion film 213 is arranged on the side of the light guide plate 215 away from the bottom surface 10.
  • the light source assembly 20 is arranged on two opposite sides of the light guide plate 215, that is, the light source assembly 20 is arranged vertically or substantially vertically to the bottom surface 10, so that the light emitted by the light source assembly 20 is emitted from the two opposite sides of the light guide plate 215.
  • the light source assembly 20 can also be arranged on one side, any two sides, any three sides of the light guide plate 215, or the light source assembly 20 is arranged on all four sides of the light guide plate 215.
  • the light source assembly 20 includes a circuit board 202 and an LED array 203 arranged on the circuit board 202.
  • the number of the circuit boards 202 can be one or more, and the length of each circuit board 202 can be the same or different, which is set according to actual needs.
  • the circuit board 202 can be a plate material such as FPC, PCB, aluminum substrate, etc. that can be used for circuit conduction and realize the function of the circuit board, but is not limited thereto.
  • the circuit board 202 can be arranged along the length direction or width direction of the bottom surface 10, or can be arranged crosswise along the length direction and width direction of the bottom surface 10.
  • the circuit board 202 is arranged approximately vertically relative to the bottom surface 10, or can be arranged at an angle with the bottom surface 10.
  • LED lighting fixtures 100 with different brightness and light-emitting effects can be obtained.
  • At least one LED array 203 is arranged on each circuit board 202, and the LED array 203 can be arranged on any side of the circuit board 202 or on both sides of the circuit board 202 at the same time.
  • the LED array 203 can be an array of LED chips, or an array composed of other light-emitting devices. Referring to Figure 111E, the LED array 203 is preferably arranged in a straight line, but of course there can be other arrangements.
  • the LED array 203 is preferably arranged in the middle or approximately in the middle of the thickness direction of the light guide plate 215.
  • the light generated by the light source assembly 20 first passes through the light guide plate 215, which refracts or reflects the light and guides the light to the directional diffusion film 213.
  • the light passes through the directional diffusion film 213, which diffuses the light in a predetermined direction, that is, diffuses the light in a biased manner to achieve different light emission effects, and finally irradiates the light through the optical unit 211.
  • This design can change the original light emission direction that is perpendicular to the bottom surface 10 to be parallel to the bottom surface 10 and then perpendicular to the bottom surface 10, that is, change the light path of the LED lighting fixture 100, and increase the travel distance of the light inside the lamp 100 without changing the thickness of the lamp 100.
  • the distance between the bottom surface 10 and the bottom surface 10 is perpendicular to the bottom surface 10, thereby reducing the granularity and glare of the LED lighting fixture. In the traditional design, the distance is perpendicular to the bottom surface 10, which will affect the thickness of the LED lighting fixture.
  • the light emitted by the LED array 203 will first enter the light guide plate 215 parallel to the bottom surface 10 in a direction parallel to the bottom surface 10, and then turn to a direction away from the bottom surface 10 to leave the light guide plate 215 and reach the optical unit 211. At least part of the light path is parallel to the bottom surface 10, thereby reducing the thickness of the LED lighting fixture 100.
  • the light guide plate 215 can receive light on the incident surface of the light and transmit it to the exit surface, thereby realizing the transmission and guidance of light, that is, the light guide plate 215 can guide light from one position to another, so that light energy can be effectively propagated and utilized.
  • the light guide plate 215 can convert unevenly distributed light into evenly distributed light. Through the internal optical structure, the light guide plate 215 can cause the light to be reflected and refracted multiple times during the transmission process, thereby homogenizing the originally uneven light.
  • the light guide plate 215 can diffuse the light from the point light source to form a wider lighting range.
  • the structure, distribution and function of the directional diffusion film 213 are the same or similar to those in the above-mentioned embodiment and will not be repeated here.
  • the optical component 21 can also include a reflective paper 216, which is arranged between the light guide plate 215 and the bottom surface 10, that is, the reflective paper 216 is arranged on the side of the light guide plate 215 close to the bottom surface 10.
  • the reflective paper 216 can reflect this part of the light back to the light guide plate 215, so that the light is finally irradiated through the optical unit 211, thereby avoiding the light loss of the light source assembly 20 and improving the luminous efficiency of the LED lighting fixture 100.
  • the number of directional diffusion films 213, light guide plates 215 and reflective paper 216 are multiple and arranged one by one, and an LED array 203 is respectively arranged on two opposite sides of each light guide plate 215.
  • the price of multiple independent and small-area directional diffusion films 213, light guide plates 215 and reflective paper 216 is cheaper, which can reduce the production cost.
  • the light source assembly 20 can be directly or indirectly disposed on the base 1 or the optical component 21, such as being fixed to the base 1 or the optical component 21 by gluing, welding, snapping or screwing. In this embodiment, the light source assembly 20 is fixed to the optical component 21 by snapping.
  • FIG. 135 is a partial enlarged view of the position D' in FIG. 134 .
  • the optical unit 211 includes an optical member 21 , and the number of the optical members 21 is multiple and corresponds to the number of the light guide plates 215 .
  • the optical member 21 may be an inverted prism structure, i.e., a reflective cup structure.
  • the prism structure is a quadrangular prism.
  • the prism surface of the optical member 21 has a light exit hole 211243 , i.e., a through hole penetrating the prism surface of the optical member 21 .
  • the optical member 21 includes an optical wall 21124 connected end to end around the light exit hole 211243 , and the end of the optical member 21 with a small opening faces the bottom surface 10 and is provided with a support portion 21126 , i.e., the side of the optical member 21 close to the bottom surface 10 is provided with a support portion 21126 , and the support portion 21126 extends in a direction close to the bottom surface 10 , and the support portion 21126 is preferably formed integrally with the optical member 21 .
  • the support parts 21126 are preferably arranged in pairs and are respectively arranged on two opposite sides of the optical component 21. That is, when one support part 21126 is arranged on each side of the optical component 21, each optical component 21 can be provided with two or four support parts 21126.
  • each optical component 21 is provided with four support parts 21126, and the four support parts 21126 are arranged at intervals, that is, the four support parts 21126 are independently arranged.
  • the support part 21126 has a certain elasticity, and the two corresponding support parts 21126 are interference fit with the directional diffusion film 213, the light guide plate 215, the reflective paper 216 and the circuit board 202, that is, the two corresponding support parts 21126 have a clamping force on the directional diffusion film 213, the light guide plate 215, the reflective paper 216 and the circuit board 202.
  • each side of the optical component 21 can also be provided with a plurality of support parts 21126 arranged at intervals.
  • Figure 130 is a partial enlarged view of A' in Figure 129.
  • the support portion 21126 is arranged on the outside of the optical wall 21124, that is, the support portion 21126 is arranged on the side of the optical wall 21124 facing the base 1, or it can be said that the support portion 21126 is arranged on the non-light-emitting surface of the optical member 21.
  • a connecting portion 211261 is formed between the supporting portion 21126 and the optical wall 21124, and the connecting portion 211261 can be flush with the end of the optical wall 21124 close to the bottom surface 10, or the connecting portion 211261 can be not in the same horizontal plane as the end of the optical wall 21124 close to the bottom surface 10.
  • connection portion 211261 of the circuit board 202 is arranged lower than the end of the optical wall 21124 close to the bottom surface 10, that is, the support portion 21126, the connection portion 211261 and a portion of the optical wall 21124 close to the bottom surface 10 form a groove for accommodating the circuit board 202.
  • the connection portion 211261 of the circuit board 202 is not arranged flush with the end of the optical wall 21124 close to the bottom surface 10.
  • connection portion 211261 on one side of the circuit board 202 abuts against the circuit board 202
  • the end of the optical wall 21124 close to the bottom surface 10 abuts against the directional diffusion film 213
  • at least a portion of the support portion 21126 close to the bottom surface 10 abuts against the bottom surface 10.
  • connection portion 211261 on the side where the circuit board 202 is not provided and the end of the optical wall 21124 close to the bottom surface 10 are vertically abutted against the circuit board 202, that is, they are inserted into the gap between adjacent light guide plates 215 and are parallel to the side of the light guide plate 215 where the circuit board 202 is not provided, and at least part of the support portion 21126 close to the bottom surface 10 is abutted against the bottom surface 10.
  • the support portion 21126, the optical wall 21124, the connection portion 211261 and the bottom surface 10 jointly clamp the directional diffusion film 213, the light guide plate 215, the reflective paper 216 and the circuit board 202, so that the positions of the directional diffusion film 213, the light guide plate 215, the reflective paper 216 and the circuit board 202 can be more stable by limiting the position of the physical structure of the components.
  • the side of the circuit board 202 close to the bottom surface 10 is flush with the end of the support portion 21126 close to the bottom surface 10, so that the two ends of the circuit board 202 are respectively in contact with the connecting portion 211261 and the bottom surface 10, so that the position of the circuit board 202 is more stable.
  • the support portion 21126 is in contact with the bottom surface 10, so that the optical component 21 is spaced a certain distance from the bottom surface 10, and the reflective paper 216, the light guide plate 215 and the directional diffusion film 213 are spaced a certain distance from the bottom surface 10, which not only ensures the optical performance of the reflective paper 216, the light guide plate 215 and the directional diffusion film 213, but also prevents the bottom surface 10 from deforming and damaging the reflective paper 216, the light guide plate 215 and the directional diffusion film 213.
  • FIG 122B is a schematic diagram of the distribution of a directional diffusion film 213 of an LED lighting fixture 100 in one embodiment of the present invention.
  • the LED lighting fixture 100 is provided with sixteen directional diffusion films 213, and distributed in a 4*4 pattern.
  • the light diffusion direction formed by each directional diffusion film 213 for the light output is in the same direction relative to the LED lighting fixture 100, as indicated by the arrow in Figure 122B.
  • the optical unit 211 includes sixteen optical components 21, four optical components 21 are arranged in a row along the X direction, and four optical components 21 are arranged in a column along the Y direction, as shown in FIG122B, a circuit board 202 is provided on both sides of each column of optical components 21, four LED arrays 203 are provided on each circuit board 202, and a directional diffusion film 213 is provided corresponding to each optical component 21, that is, the number of directional diffusion films 213 is sixteen, four directional diffusion films 213 are arranged in a row along the X direction, and four directional diffusion films 213 are arranged in a column along the Y direction.
  • Each directional diffusion film 213 has two diffusion directions, and the two diffusion directions are respectively oriented in the positive direction and the negative direction of the X axis.
  • the diffusion directions of the directional diffusion films 213 are set to be the same, that is, the diffusion directions of each directional diffusion film 213 are along the positive direction and the negative direction of the X-axis, that is, the diffusion direction is along the two opposite outer frames of the LED lighting fixture 100, more specifically, along the two frames in the positive and negative directions of the X-axis, so that the final light output of the LED lighting fixture 100, the light intensity/luminous flux along the positive and negative directions of the X-axis is significantly greater than the light intensity/luminous flux along the positive and negative directions of the Y-axis, that is, from the perspective of the XY coordinate system, the light intensity/luminous flux along the positive and negative directions of the Y-axis is significantly greater than the light intensity/luminous flux along the positive and negative directions of the Y-axis.
  • the light intensity of the point close to the positive and negative directions of the X axis is significantly greater than the light intensity/luminous flux close to the positive and negative directions of the Y axis, that is, the light intensity/luminous flux distribution is a light source as the center, and when the distance from the light source is equal, the light intensity/luminous flux on both sides (near the X axis direction) is significantly greater than the middle (near the Y axis direction), thereby forming a bat wing light pattern that diffuses in both directions, that is, the optical diffusion direction is diffused in both directions along the X direction, with the light source (the center of the lamp) as the center (the center of the circle), and the light is concentrated on both sides.
  • FIG 136 which is a light pattern after the LED lighting fixture 100 in one embodiment of the present invention emits light.
  • the diffusion direction of the directional diffusion film 213 is set as shown in Figure 122B, so that the light pattern after the LED lighting fixture 100 emits light is a bat wing light pattern, which improves the light emission effect of the LED lighting fixture 100, meets the lighting requirements of specific occasions, and enhances the visual effect.
  • the diffusion directions of adjacent directional diffusion films 213 in each row may cross each other (not limited to being perpendicular), or the diffusion directions of adjacent directional diffusion films 213 in each column may be parallel to each other.
  • the light source assembly 20 can be directly or indirectly arranged on the bottom surface 10, such as being fixed to the bottom surface 10 by glue coating, welding, clamping or screw locking.
  • the number of circuit boards 202 can be one or more, and the length of each circuit board 202 can be the same or different, which is set according to actual needs.
  • the circuit board 202 can be a plate material that can be used for circuit conduction and realize the function of the circuit board, such as FPC, PCB, aluminum substrate, etc., but is not limited to this.
  • the circuit board 202 can be arranged along the length direction or width direction of the bottom surface 10, or can be arranged crosswise along the length direction and width direction of the bottom surface 10.
  • the circuit board 202 is arranged roughly parallel to the bottom surface 10, or can be arranged at an angle with the bottom surface 10. By adjusting the number and arrangement of the circuit boards 202, LED lighting fixtures 100 with different brightness and light output effects can be obtained. At least one LED array 203 is arranged on each circuit board 202, and the LED array 203 can be arranged on any side of the circuit board 202 or on both sides of the circuit board 202 at the same time.
  • the LED array 203 can be an LED chip array, or an array composed of other light-emitting devices.
  • the LED lighting fixture 100 further includes a power supply 3 and a power supply box 6, and the installation positions of the power supply 3 and the power supply box 6 are the same or similar to those in the above-mentioned embodiment.
  • the LED lighting fixture 100 further includes a wiring terminal 7 and a connecting plate 8, and the connecting plate 8 is used to electrically connect a plurality of circuit boards 202, and the connecting plate 8 is electrically connected to the power supply 3 through the wiring terminal 7, so that the connecting wires between the circuit boards 202 and the power supply 3 can be reduced, and the installation and removal between the connecting plate 8 and the power supply 3 are also facilitated.
  • FIG. 137 is a schematic diagram of an LED lighting fixture 100 in one embodiment of the present invention
  • FIG. 138 is a schematic diagram of a forward exploded view of an LED lighting fixture 100 in another embodiment of the present invention, or an exploded view along the light emitting direction.
  • a rectangular coordinate system is established with the light emitting direction of the LED lighting fixture 100 as the Z axis, and the exploded view of the LED lighting fixture 100 is exploded along the positive direction of the Z axis.
  • the LED lighting fixture 100 includes: a base 1 disposed at the bottom (i.e., the LED lighting fixture 100 is at the lowest position of the Z axis) and an optical component 2, and the optical component 2 is disposed on the base 1.
  • the basic structure of this embodiment is the same as that of the aforementioned embodiment, and the main difference is that in this embodiment, the independent optical bearing part 22 and the support member 51 of the aforementioned embodiment are eliminated, and a support part 21126 is provided with the optical component 21 (refer to Figure 151, Figure 151 is a partial enlarged view of J' in Figure 145) to realize part or all of the functions of the optical bearing part 22 of the aforementioned embodiment; referring to Figure 138, the prism plate 214, the light guide plate 215 and the reflective paper 216 are eliminated in this embodiment, and the directional diffusion film 213 is replaced by a diffuser 217.
  • the diffuser 217 can diffuse the light to the surroundings more effectively, reduce the light in the middle, form a bat-wing light pattern, improve the light output effect of the LED lighting fixture 100, meet the lighting requirements of specific occasions, and enhance the visual effect.
  • the base 1 includes a bottom surface 10 and a side wall 11 that are substantially parallel to a horizontal plane or an XY plane.
  • the side wall 11 extends substantially in the same direction along the Z axis, that is, extends along the positive direction of the Z axis.
  • the side wall 11 and the bottom surface 10 form a groove with an opening, that is, the bottom surface 10 and the side wall 11 form a receiving space 12, and at least part of the optical component 2 is received in the receiving space 12.
  • the side wall 11 is inclined relative to the bottom surface 10, and the side wall 11 is inclined outward, that is, the side wall 11 is inclined away from the optical component 2. In other words, the side wall 11 is inclined outward to form a base 1 with a large opening and a small bottom.
  • the light emitting direction of the LED lighting fixture 100 is referred to as upward, that is, the positive direction of the Z axis is referred to as upward.
  • the bottom surface 10 is roughly rectangular, such as a square or a rectangle, and can also be set to other shapes as needed. In the present embodiment, the bottom surface 10 is rectangular, and the bottom surface 10 has a relative length and width. In the present embodiment, the length and width of the bottom surface 10 are the same or roughly the same, that is, the bottom surface 10 is roughly square.
  • the material of the bottom surface 10 is preferably a metal material to ensure the structural strength of the bottom surface 10 and avoid deformation during use.
  • the material of the bottom surface 10 is more preferably a metal material with good thermal conductivity, which is beneficial to the heat dissipation of the LED lighting fixture 100.
  • the metal material has a high structural strength, which ensures the stability of the operation of the LED lighting fixture 100 and can also extend the service life of the LED lighting fixture 100.
  • the bottom surface 10 may also be made of a light-transmitting material, such as a transparent material, a translucent material, or an opaque material.
  • a light-transmitting material such as a transparent material, a translucent material, or an opaque material.
  • the material of the bottom surface 10 may be a transparent material or a translucent material, and part of the light is emitted from the back of the LED lighting fixture 100, which can eliminate the dark shadow on the back of the LED lighting fixture 100 and improve the overall lighting effect of the LED lighting fixture 100.
  • the bottom surface 10 may be set to be fully light-transmitting, or partially light-transmitting, or at least partially light-transmitting, and of course, it may also be completely opaque.
  • a bottom surface groove 101 may be provided on the bottom surface 10.
  • the bottom surface groove 101 may be a reinforcing rib.
  • the bottom surface groove 101 may be provided on the side of the bottom surface 10 facing the accommodating space 12, or may be provided on the side of the bottom surface 10 facing away from the accommodating space 12.
  • the bottom surface groove 101 is provided on both sides of the bottom surface 10 at the same time, and the bottom surface groove 101 and the bottom surface 10 are integrally formed, such as by die casting, stretching, stamping, etc.
  • the bottom surface groove 101 is convex or concave relative to the bottom surface 10 to form a three-dimensional structure, and the bottom surface groove 101 can further enhance the structural strength of the bottom surface 10.
  • the side wall 11 can be arranged at the outer edge of the bottom surface 10 or at a position close to the outer edge of the bottom surface 10.
  • the side wall 11 is arranged around the bottom surface 10 to form a ring-shaped structure of the side wall 11 connected end to end, and forms a receiving space 12 with the bottom surface 10.
  • the side wall 11 can not only enhance the overall structural strength of the base 1, but also prevent foreign objects such as dust and insects from entering the LED lighting fixture 100 through the side wall 11.
  • the base 1 may include multiple sections.
  • the side walls 11 are arranged at intervals.
  • the side wall 11 extends along the light emitting direction of the LED lighting fixture 100 to form a certain height, and forms a housing space 12 with the bottom surface 10.
  • the height of the side wall 11 determines the depth of the housing space 12.
  • the optical component 2 is disposed in the housing space 12, and the height of the side wall 11 can be set according to actual needs.
  • the thickness of the optical component 2 in the light emitting direction of the LED lighting fixture 100 is less than or equal to the depth of the housing space 12, that is, less than or equal to the height of the side wall 11 in the light emitting direction of the LED lighting fixture 100, so as to control the height of the LED lighting fixture 100 and facilitate subsequent assembly.
  • the side wall 11 can be made of a light-transmitting material and an opaque material, such as a transparent material, a translucent material or an opaque material alone, or at least two of them, and can be set according to actual needs to meet the lighting needs of different occasions, such as making the side wall 11 completely transparent, or completely opaque, or partially transparent, partially opaque (or at least partially transparent, or at least partially opaque, the bottom surface 10 can also be the same).
  • the material of the side wall 11 is preferably a metal material, and the material of the side wall 11 is more preferably a metal material with good thermal conductivity, while ensuring the strength and heat dissipation effect of the side wall 11.
  • the side wall 11 and the bottom surface 10 are preferably made of the same material.
  • the side wall 11 and the bottom surface 10 can be a split structure or an integrally formed structure.
  • the side wall 11 and the bottom surface 10 can be connected by glue coating, welding, clamping or screw locking.
  • the material of the side wall 11 and the bottom surface 10 is preferably the same material, which is conducive to the production and manufacturing of the base 1.
  • the side wall 11 and the bottom surface 10 adopt an integrally formed structure, which can improve the bonding force between the side wall 11 and the bottom surface 10, and can also improve the dimensional accuracy of the base 1. At the same time, it is also conducive to batch manufacturing and reduces production costs.
  • the bottom surface 10 and the side wall 11 are formed by integrally stamping the same material, such as a metal material, or the side wall 11 and the bottom surface 10 are formed by bending on a metal surface.
  • FIG. 149B is an enlarged view of point I' in FIG. 149.
  • a mounting end wall 13 is provided at one end of the side wall 11 away from the bottom surface 10, and a first mounting portion 138 and a second mounting portion 139 are provided on the mounting end portion 12, wherein the first mounting portion 138 is substantially parallel to the bottom surface 10, the second mounting portion 139 is substantially perpendicular to the bottom surface 10, and the bending direction of the second mounting portion 139 is toward the bottom surface 10, that is, the second mounting portion 139 extends toward the direction of the bottom surface 10.
  • the first mounting portion 138 and the second mounting portion 139 are integrally formed on the side wall 11, or are formed by bending one end of the side wall 11 away from the bottom surface 10.
  • Figure 140 is a cross-sectional schematic diagram of Figure 139 along C-C
  • Figure 141 is a partial enlarged view of E' in Figure 140.
  • the first mounting portion 138 can be arranged around the side wall 11 to form a first mounting portion 138 with an annular structure connected end to end.
  • the first mounting portion 138 can not only enhance the overall structural strength of the base 1, but the optical component 2 can also be connected to the first mounting portion 138 by gluing, welding, clamping or screw locking to enhance the stability of the position of the optical component 2.
  • the second mounting portion 139 can also be set around the side wall 11 to form a first mounting portion 138 with an annular structure connected end to end, or the second mounting portion 139 located at the corner of the base 1 can be cut off. This can prevent the second mounting portion 139 located at the corner of the base 1 from generating wrinkles, improve the overall flatness of the second mounting portion 139, and the second mounting portion 139 can also enhance the overall structural strength of the base 1.
  • a corner guard 44 may be provided at the corner of the base 1.
  • the corner guard 44 is L-shaped as a whole.
  • the number of the corner guards 44 may be four, and each of them may be provided on the base 1 by glue coating, welding, clamping or screw locking.
  • the corner guards 44 can strengthen the structural strength of the corners of the base 1, and avoid the risk of deformation of the base 1 caused by the cutting off of the second mounting portion 139 at the corner of the base 1.
  • hooks 43 may be provided on the base 1.
  • the number of hooks 43 may be one or more.
  • the hooks 43 may be provided in the middle of the base 1 or in the peripheral position of the base 1.
  • the hooks 43 and the corner protectors 44 may be connected by glue coating, welding, clamping or screw locking. In this embodiment, the hooks 43 and the corner protectors 44 are connected by screws.
  • the first mounting portion 138 may include one or more mounting portions parallel to the bottom surface 10.
  • the first mounting portion 138 includes a first horizontal mounting portion 1381 and a second horizontal mounting portion 1382.
  • the first horizontal mounting portion 1381 is close to the side wall 11 and connected to the side wall 11, and the second horizontal mounting portion 1382 is close to the second mounting portion 139 and connected to the second mounting portion 139.
  • the first horizontal mounting portion 1381 and the second horizontal mounting portion 1382 may be in the same horizontal plane or in the same XY plane, or in different horizontal planes or in different XY planes.
  • first horizontal mounting portion 1381 and the second horizontal mounting portion 1382 are integrally formed, and the first horizontal mounting portion 1381 and the second horizontal mounting portion 1382 may be formed by bending.
  • the first horizontal mounting portion 1381 and the second horizontal mounting portion 1382 are in different horizontal planes or in different XY planes, and along the positive direction of the Z axis, the first horizontal mounting portion 1381 is higher than the second horizontal mounting portion 1382, that is, in the positive direction of the Z axis, the first horizontal mounting portion 1381 is closer to the bottom surface 10, thereby enhancing the structural strength of the first mounting portion 138, thereby further enhancing the overall structural strength of the base 1.
  • a plurality of through holes 137 may be provided on the first horizontal mounting portion 1381.
  • the through holes 137 have different functions, such as being used as assembly holes or positioning holes.
  • the through holes 137 include at least one assembly hole 1371 and at least a first positioning hole 1372.
  • the assembly hole 1371 may be circular, square, etc., and the first positioning hole 1372 may also be circular, square, etc. There may be multiple assembly holes 1371 and first positioning holes 1372.
  • the corner guard 44 is provided on the side of the first horizontal mounting portion 1381 and the second horizontal mounting portion 1382 facing the bottom surface 10, and the surface of a portion of the corner guard 44 is in conflict with or clamped with a portion of the side wall 11, the first horizontal mounting portion 1381, the second horizontal mounting portion 1382, and the first horizontal mounting portion 1381.
  • the assembly hole 1371 is close to the turning position of the first horizontal mounting portion 1381, that is, the assembly hole 1371 is close to the corner position of the base 1, and the assembly hole 1371 is set corresponding to the corner protector 44, and the corner protector 44 can be connected to the assembly hole 1371 by screws, so as to realize the connection between the corner protector 44 and the base 1.
  • the hook 43, the corner protector 44 and the base 1 can be fixed by screws at the same time.
  • the first positioning hole 1372 can be set near the middle position of each side of the base 1, and one or more first positioning holes 1372 can be set on each side of the base 1. When multiple first positioning holes 1372 are set, the multiple first positioning holes 1372 can be evenly distributed.
  • the optical assembly 2 is disposed in the accommodating space 12.
  • the optical assembly 2 may include a light source assembly 20 and an optical component 21.
  • the light source assembly 20 is disposed on the bottom surface 10 of the base 1.
  • the optical component 21 is disposed on a side of the light source assembly 20 away from the base 1, that is, the optical component 21 is covered by the light source assembly 20.
  • the light source assembly 20 can generate light and emit it.
  • the light of the light source assembly 20 can pass through the optical component 21.
  • the optical component 21 can process the light generated by the light source assembly 20 and can be used for light transmission. One of projection, light reflection, light diffusion, light refraction, light diffraction, etc., or a combination of multiple thereof.
  • the light source assembly 20 includes a circuit board 202 and an LED array 203 disposed on the circuit board 202.
  • the light source assembly 20 can be directly or indirectly disposed on the base 1 or the optical component 21, such as being fixed to the base 1 or the optical component 21 by gluing, welding, clamping or screwing.
  • the number of circuit boards 202 can be one or more, and the length of each circuit board 202 can be the same or different, which is set according to actual needs.
  • the circuit board 202 can be a plate material that can be used for circuit conduction and realize the function of the circuit board, such as FPC, PCB, aluminum substrate, etc., but is not limited thereto.
  • the circuit board 202 can be arranged along the length direction or width direction of the bottom surface 10, or can be arranged crosswise along the length direction and width direction of the bottom surface 10.
  • the circuit board 202 is arranged roughly parallel to the bottom surface 10, or can be arranged at an angle with the bottom surface 10.
  • LED lighting fixtures 100 with different brightness and light-emitting effects can be obtained.
  • At least one LED array 203 is arranged on each circuit board 202, and the LED array 203 can be arranged on any side of the circuit board 202 or on both sides of the circuit board 202 at the same time.
  • the LED array 203 can be an LED chip array, or an array composed of other light-emitting devices. Referring to FIG. 111F , the light emitting devices of the LED array 203 may be arranged in a ring shape, and the light emitting devices of each LED array 203 may be arranged in one or more ring shapes.
  • the light emitting devices of each LED array 203 are arranged in two ring shapes, so that the light in the middle of the LED array 203 can be reduced and the light around the LED array 203 can be increased, so that the LED lighting fixture 100 forms a batwing light pattern.
  • combining the diffuser 217 with the circularly arranged LED array 203 can further effectively diffuse the light to the surroundings, reduce the light in the middle, form a bat-wing light pattern, improve the light output effect of the LED lighting fixture 100, meet the lighting requirements of specific occasions, and enhance the visual effect.
  • the circuit board 202 has a concave portion 2021 and a convex portion 2022 that are arranged opposite to each other.
  • the circuit board 202 may also be provided with one or more circuit board mounting holes 2023.
  • a fixing member such as a screw may pass through the circuit board mounting hole 2023 to fix the circuit board 202 and the bottom surface 10.
  • an adhesive or heat dissipation adhesive may be provided on the front and back sides of the circuit board 202 and the bottom surface 10 to fix the circuit board 202 and the bottom surface 10, thereby enhancing the connection strength between the circuit board 202 and the bottom surface 10.
  • FIG 111D is a schematic diagram of cutting multiple circuit boards 202 in the present application.
  • the width of the recessed portion 2021 of the circuit board 202 is approximately equal to the width of the convex portion 2022 of the circuit board 202.
  • the recessed portion 2021 and the convex portion 2022 are staggered along the length direction of the circuit board 202, so that more individual circuit boards 202 can be cut from a circuit board of the same area.
  • the optical component 21 may include an optical unit 211 and a diffuser 217, and the diffuser 217 is snapped onto the optical unit 211.
  • the number of diffusers 217 is multiple and is consistent with the number of LED arrays 203 and is arranged one-to-one, that is, one diffuser 217 is arranged corresponding to one LED array 203, and the light emitted by each LED array 203 can be diffused by the diffuser 217, so that the light emitted by the LED array 203 is emitted in a predetermined direction, that is, the light is diffused with bias to achieve different light emission effects, and finally irradiated through the optical unit 211.
  • the number of diffusers 217 and the number of LED arrays 203 are both sixteen, and are distributed in a 4*4 pattern.
  • Each diffuser 217 is preferably independently arranged. Compared with the conventional diffuser arranged as a whole, the price of multiple independently arranged diffusers 217 is cheaper, which can reduce the production cost. At the same time, it is also convenient to set or change the diffusion direction of the diffuser 217, and it is also convenient to replace the diffuser 217, which reduces the maintenance cost of the LED lighting fixture 100.
  • the diffuser 217 can deflect light in a specific direction by means of a micro-optical array structure disposed on its surface, such as micro-prisms. or the diffuser 217 itself is composed of plate-like regions with different refractive indices alternately arranged in parallel along any direction of the film surface to guide the light to diffuse in a specific direction, that is, the diffuser 217 has the function of diffusing light in a specific direction.
  • the diffuser 217 has a flat portion 2171 and a three-dimensional portion 2172 that are substantially parallel to a horizontal plane or an XY plane.
  • the three-dimensional portion 2172 is generally in the shape of a prism, a truncated cone, a pyramid or a cone. In this embodiment, the three-dimensional portion 2172 is generally in the shape of a quadrangular pyramid.
  • the small end of the three-dimensional portion 2172 is disposed close to the LED array 203, and the large end of the three-dimensional portion 2172 is disposed toward the light emitting direction of the LED lighting fixture 100.
  • the flat portion 2171 is disposed close to the small end of the three-dimensional portion 2172, and the three-dimensional portion 2172 is disposed close to the center of the flat portion 2171, that is, the small end of the three-dimensional portion 2172 passes through the center of the flat portion 2171 and protrudes from the flat portion 2171.
  • the light emitted by the light source assembly 20 can be projected, reflected, diffused, diffracted, refracted, etc., or a combination of multiple thereof through the flat portion 2171 and the three-dimensional portion 2172. Finally, part of the light is emitted through the flat portion 2171, and part of the light is emitted through the three-dimensional portion 2172, so that the light can be more effectively diffused to the surroundings, reducing the light in the middle, forming a bat-wing light pattern, improving the light output effect of the LED lighting fixture 100, meeting the lighting requirements of specific occasions, and enhancing the visual effect.
  • the optical unit 211 includes an optical component 21.
  • the number of the optical components 21 is multiple and corresponds to the number of the diffusers 217, that is, one optical component 21 is correspondingly arranged with one diffuser 217, and the diffuser 217 is arranged in the optical component 21.
  • the optical component 21 can be an inverted prism structure, that is, a reflective cup structure.
  • the prism structure is a quadrangular prism.
  • the number of diffusers 217 and the number of optical components 21 are both sixteen, and are distributed in a 4*4 pattern.
  • the prism surface of the optical member 21 has a light exit hole 211243, that is, a through hole that penetrates the prism surface of the optical member 21.
  • the optical member 21 includes an optical wall 21124 that is connected end to end around the light exit hole 211243.
  • the end of the optical member 21 with a small opening faces the bottom surface 10 and is provided with a support portion 21126, that is, the side of the optical member 21 close to the bottom surface 10 is provided with a support portion 21126, and the support portion 21126 extends in a direction close to the bottom surface 10.
  • One end of the support portion 21126 can abut against the circuit board 202 and cover the surroundings of the LED array 203.
  • the support portion 21126 is preferably formed integrally with the optical member 21.
  • Each optical member 21 is preferably provided with four support portions 21126, and the four support portions 21126 can be arranged at intervals or connected end to end.
  • the diffuser 217 includes a flat portion 2171, a three-dimensional portion 2172 and a hook 2173.
  • the flat portion 2171 has a surface parallel to the bottom surface and a side surface perpendicular to the bottom surface.
  • the three-dimensional portion 2172 is arranged on the surface of the flat portion 2171 parallel to the bottom surface 10 and is integrally formed with the flat portion 2171.
  • the flat portion 2171 is arranged on the bottom surface 10 through the side surface perpendicular to the bottom surface (which can also be the reinforcing portion 21711) and is covered on the LED array.
  • One or more hooks 2173 can be arranged around the flat portion 2171 of the diffuser 217, and the hooks 2173 can be connected to the support portion 21126.
  • FIG. 142 is a cross-sectional schematic diagram along DD of FIG. 139
  • FIG. 143A is a partial enlarged view of F' in FIG. 142.
  • the end of the support portion 21126 close to the circuit board 202 is provided with a first engaging portion 211262, and the hook 2173 is engaged with the first engaging portion 211262.
  • the first engaging portion 211262 is preferably arranged between adjacent support portions 21126.
  • the first engaging portion 211262 can also be arranged at other positions of the support portion 21126.
  • the number of the first engaging portions 211262 is preferably four, and the number of the hooks 2173 is preferably the same as the number of the first engaging portions 211262, that is, the number of the hooks 2173 is four, and the four hooks 2173 are respectively engaged with the first engaging portions 211262.
  • the depth of the first engaging portion 211262 is the same or substantially the same as the thickness of the hook 2173. 211262, the hook 2173 and the side of the support portion 21126 facing the circuit board 202 can be in the same horizontal plane, that is, the hook 2173 and the support portion 21126 are simultaneously in contact with the circuit board 202, so that the positions of the diffuser 217 and the optical component 21 are more stable, preventing the diffuser 217 and the optical component 21 from being offset.
  • the end of the three-dimensional portion 2172 close to the circuit board 202 is preferably flush with the end of the support portion 21126 close to the circuit board 202, that is, the top of the hook 2173 is flush with the top of the support portion 21126, so that the end of the three-dimensional portion 2172 close to the circuit board 202 can abut against the circuit board 202, that is, the hook 2173 and the support portion 21126 abut against the circuit board 202 at the same time, further enhancing the stability of the position of the diffuser 217 and the optical member 21.
  • a reinforcing portion 21711 can be arranged around the flat portion 2171, and the reinforcing portion 21711 is arranged roughly perpendicular to the flat portion 2171.
  • the reinforcing portion 21711 can extend toward the direction of the circuit board 202, and can also extend toward the direction of light emission of the LED lighting fixture 100.
  • the reinforcing portion 21711 can enhance the structural strength of the flat portion 2171.
  • the four support parts 21126 are connected end to end, the support parts 21126 and the hooks 2173 are arranged around the LED array 203, and the flat part 2171 and the three-dimensional part 2172 are arranged in front of the light emitting direction of the LED array 203.
  • the four support parts 21126 are preferably made of opaque material, and the light emitted by the LED array 203 will not pass through the support parts 21126 to cause light loss. Part of the light emitted by the LED array 203 can be projected, reflected, diffused, diffracted, refracted, etc., or a combination of multiple thereof through the support parts 21126, and finally, this part of the light is emitted through the diffuser 217.
  • Part of the light emitted by the LED array 203 first passes through the flat portion 2171 and the three-dimensional portion 2172 located above the flat portion 2171 to perform one of light projection, light reflection, light diffusion, light diffraction, light refraction, etc., or a combination of multiple thereof, and part of the light is emitted through the flat portion 2171 and the three-dimensional portion 2172 located above the flat portion 2171, and part of the light needs to pass through the three-dimensional portion 2172 located below the flat portion 2171 again to perform one of light projection, light reflection, light diffusion, light diffraction, light refraction, etc., or a combination of multiple thereof, and finally, this part of the light is emitted through the three-dimensional portion 2172 located below the flat portion 2171.
  • the light emitted by the LED array 203 passes through the flat portion 2171, the three-dimensional portion 2172 located above the flat portion 2171, and the three-dimensional portion 2172 located below the flat portion 2171 for multiple times to perform one of light projection, light reflection, light diffusion, light diffraction, light refraction, etc., or a combination of multiple thereof, so that the light emitted by the LED array 203 can be more effectively diffused to the surroundings, reducing the light in the middle, avoiding light concentration, forming a bat-wing light pattern, improving the light output effect of the LED lighting fixture 100, meeting the lighting requirements of specific occasions, and enhancing the visual effect.
  • the diffuser 217 is disposed in the optical component 21.
  • the light diffused by the diffuser 217 is diffused again by the optical component 21, further making the light emitted by the LED array 203 more effectively diffused to the surroundings, reducing the concentration in the middle, avoiding the concentration of light, forming a bat-wing light pattern, and further improving the light output effect of the LED lighting fixture 100.
  • FIG. 143B is a schematic diagram of the optical path in FIG. 143A .
  • at least part of the light emitted from the LED array 203 is directly emitted from the lower part of the three-dimensional portion 2172 (i.e., emitted from the LED lamp), or in other words, with the plane where the flat portion 2171 is located as the boundary, at least part of the light emitted from the three-dimensional portion 2172 closer to the LED array 203 is emitted after turning at a certain angle.
  • the flat portion 2171 After at least part of the light emitted from the LED array 203 passes through the flat portion 2171, it passes through the part of the three-dimensional portion 2172 away from the LED array 203, turns at a certain angle, and then is emitted from the LED lamp. After at least part of the light emitted from the LED array 203 passes through the flat portion 2171, it is at least partly reflected by the outer surface of the three-dimensional portion 2172, projected onto the optical wall 21124, and then is emitted from the LED lamp after being reflected by the optical wall 21124.
  • the distance between the optical wall 21124 and the three-dimensional portion 2172 gradually increases along the light emitting direction, and is reflected to the optical wall 21124 through the outer surface of the three-dimensional portion 2172.
  • the reflection angle changes with the distance between the optical wall 21124 and the three-dimensional portion 2172, thereby further enhancing the light diffusion effect.
  • Figure 152 is a partial exploded view of the LED lamp in this embodiment.
  • the LED array 203 is distributed in a hollow ring shape, that is, no light-emitting device is arranged in the middle area.
  • the light-emitting device is arranged around the three-dimensional portion 2172 when viewed from the projection direction of the light emitting direction. The light is refracted multiple times by the three-dimensional portion 2172 and the optical wall 21124 or diffuses to the surroundings after reflection to form a bat-wing light pattern.
  • a first connector 21121 is provided on the side of the optical unit 211 facing the bottom surface 10, that is, a first connector 21121 is provided on the end of the optical component 21 close to the bottom surface 10, and the first connector 21121 is provided on the side of the optical wall 21124 facing the base 1, or it can be said that the first connector 21121 is provided on the non-light-emitting surface of the optical component 21.
  • the first connector 21121 can be a mounting column with a screw hole, and the optical component 21, the circuit board 202 and the bottom surface 10 can be fixedly connected by screws and the first connector 21121, and the diffuser 217 can be clamped at the same time, that is, the screws fix the optical component 21, the circuit board 202 and the bottom surface 10 at the same time, and the generated clamping force clamps the diffuser 217.
  • Each optical component 21 can be provided with one or more first connectors 21121, and of course, some optical components 21 may not be provided with the first connector 21121, which can be set according to actual needs.
  • the optical unit 211 is provided with a first wall 511 around it, and the first wall 511 is provided with a second connecting member 5111 and a first positioning member 5112, and the second connecting member 5111 and the first positioning member 5112 are both provided on the side of the first wall 511 facing the bottom surface 10.
  • the position where the first positioning member 5112 is provided corresponds to the first positioning hole 1372, and the first positioning member 5112 can be snapped into the first positioning hole 1372.
  • the first positioning member 5112 facilitates the installation of the optical unit 211 on the base 1, and at the same time, there is a certain holding force between the first positioning member 5112 and the first positioning hole 1372, so that the connection between the optical unit 211 and the base 1 is more stable.
  • the second connecting member 5111 can be a mounting column with a screw hole.
  • the second connecting member 5111 is arranged at a position corresponding to the assembly hole 1371 and the corner protector 44.
  • the optical unit 211, the corner protector 44 and the bottom surface 10 can be fixedly connected by screws and the second connecting member 5111, that is, the screws simultaneously fix the optical unit 211, the corner protector 44 and the bottom surface 10.
  • the hook 43 can also be locked at the same time, that is, the screws can simultaneously fix the optical unit 211, the hook 43, the corner protector 44 and the bottom surface 10.
  • a third connecting member 411 is provided on the corner guard 44, and the first positioning member 5112 can be a mounting column with a screw hole.
  • the position at which the third connecting member 411 is provided corresponds to the assembly hole 1371 and the first positioning member 5112, and the aperture of the third connecting member 411 is greater than or equal to the outer diameter of the first positioning member 5112, so that the first positioning member 5112 can be inserted into the third connecting member 411, so that the connection between the first positioning member 5112 and the third connecting member 411 is more stably connected, and at the same time, the installation of the first positioning member 5112 and the third connecting member 411 is facilitated.
  • the first wall 511 is disposed on the side of the first horizontal mounting portion 1381 facing away from the bottom surface 10 , and the thickness of the first wall 511 is equal to or approximately equal to the height difference between the first horizontal mounting portion 1381 and the second horizontal mounting portion 1382 .
  • the surface of the first wall 511 is flush or approximately flush with the surfaces of the four mounting portions, thereby improving the overall aesthetics of the LED lighting fixture 100 .
  • Fig. 144 is a cross-sectional schematic diagram of Fig. 139 along E-E
  • the LED lighting fixture 100 further includes a power supply 3 and a power supply box 6, the power supply 3 is installed in the power supply box 6, the power supply box 6 can be installed on the side of the optical unit 211 facing the bottom surface 10, that is, the power supply box 6 is installed in the gap between adjacent optical components 21, that is, the power supply box 6 is installed between the optical unit 211 and the base 1.
  • the power supply box 6 is provided with a second positioning member 61 and a third positioning member 62
  • the bottom surface 10 is provided with a first positioning hole 104 and a second positioning hole 105 of the power supply box
  • the second positioning member 61 can be clamped in the first positioning hole 104 of the power supply box
  • the third positioning member 62 can be clamped in the second positioning hole 105 of the power supply box.
  • the LED lighting fixture 100 further includes a wiring cover plate 9, which is disposed on the bottom surface 10. External wires can be electrically connected to the power source 3 through the wiring cover plate 9 to realize power supply to the LED lighting fixture 100.
  • the two ends of the wiring cover plate 9 are respectively provided with a second clamping portion 801 and a third clamping portion 802, and the bottom surface 10 is provided with a fourth clamping portion 106.
  • the second clamping portion 801 is clamped to the bottom surface 10, and the third clamping portion 802 is clamped with the fourth clamping portion 106 to form a mutually locked state.
  • the second clamping portion 801, the third clamping portion 802 and the fourth clamping portion 106 are preferably all elastic, so that the clamping effect of the second clamping portion 801, the third clamping portion 802 and the fourth clamping portion 106 can be improved.
  • the LED lighting fixture 100 also includes a connecting board 8, which is, for example, an FPC connecting board.
  • the connecting board 8 is used to electrically connect multiple circuit boards 202.
  • the connecting board 8 is electrically connected to the power supply 3. This can reduce the connecting wires between the circuit boards 202 and the power supply 3, and also facilitate the installation and disassembly between the connecting board 8 and the power supply 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

Abstract

La présente invention concerne un dispositif d'éclairage à DEL. Le dispositif d'éclairage à DEL comprend : une base, comprenant une surface inférieure et une paroi latérale, la paroi latérale étant disposée autour de la surface inférieure, la paroi latérale et la surface inférieure formant un espace de logement, et la surface inférieure comprenant un évidement de surface inférieure ; un ensemble optique, au moins partiellement agencé dans l'espace de logement, l'ensemble optique comprenant un ensemble source de lumière et un composant optique, l'ensemble source de lumière comprenant des cartes de circuit imprimé, un réseau de DEL et une unité de connexion électrique, les cartes de circuit imprimé étant disposées sur la surface inférieure, le réseau de DEL étant disposé sur les cartes de circuit imprimé, les cartes de circuit imprimé étant électriquement connectées au moyen de l'unité de connexion électrique, les cartes de circuit imprimé étant au moins partiellement logées dans l'évidement de surface inférieure, le composant optique comprenant une pluralité d'unités optiques et comprenant un premier composant optique et un second composant optique entourant la périphérie du premier composant optique, et le composant optique recouvrant le réseau de DEL et étant situé dans une direction de sortie de lumière du réseau de DEL ; un cadre de montage, comprenant une pluralité d'éléments de support, le composant optique étant maintenu par la base et le cadre de montage, et un espace redondant étant formé entre le cadre de montage et le côté extérieur de la paroi latérale ; et une alimentation électrique, disposée dans l'espace redondant, le cadre de montage recouvrant l'alimentation électrique.
PCT/CN2024/116863 2021-05-28 2024-09-04 Dispositif d'éclairage à del Pending WO2025051154A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US19/008,674 US12571521B2 (en) 2021-05-28 2025-01-03 LED lighting device

Applications Claiming Priority (18)

Application Number Priority Date Filing Date Title
CN202311140406.5 2023-09-05
CN202311140406 2023-09-05
CN202311228547.2 2023-09-21
CN202311228547 2023-09-21
CN202311254158 2023-09-26
CN202311254158.7 2023-09-26
CN202311268258.5 2023-09-28
CN202311268258 2023-09-28
CN202311713384.7 2023-12-13
CN202311713384 2023-12-13
CN202311752933.1 2023-12-19
CN202311752933 2023-12-19
CN202410150477 2024-02-02
CN202410150477.1 2024-02-02
CN202410430333 2024-04-10
CN202410430333.1 2024-04-10
CN202411211928 2024-08-30
CN202411211928.4 2024-08-30

Related Child Applications (1)

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US19/008,674 Continuation-In-Part US12571521B2 (en) 2021-05-28 2025-01-03 LED lighting device

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WO2025051154A1 true WO2025051154A1 (fr) 2025-03-13

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CN217441545U (zh) * 2022-05-18 2022-09-16 深圳市豪恩智能物联股份有限公司 面板灯
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KR101001953B1 (ko) * 2009-08-31 2010-12-20 정창국 확산각도를 조절하는 광 가이드 유닛 및 이를 포함하는 ｌｅｄ 램프
CN205191348U (zh) * 2015-10-29 2016-04-27 常州市武进区半导体照明应用技术研究院 一种可实现无缝拼接均匀照面面板灯
CN205208278U (zh) * 2015-12-02 2016-05-04 Tcl海外电子（惠州）有限公司 反射片和背光模组
CN215372333U (zh) * 2020-06-05 2021-12-31 嘉兴山蒲照明电器有限公司 一种led照明设备
CN217131150U (zh) * 2020-06-05 2022-08-05 嘉兴山蒲照明电器有限公司 一种led照明设备
US20220381421A1 (en) * 2021-05-28 2022-12-01 Jiaxing Super Lighting Electric Appliance Co., Ltd Led lighting device
CN215411610U (zh) * 2021-06-24 2022-01-04 启福光照明科技（上海）有限公司 一种下发光上透光的教室灯
CN115789573A (zh) * 2021-09-10 2023-03-14 嘉兴山蒲照明电器有限公司 一种led照明设备
CN216017257U (zh) * 2021-10-22 2022-03-11 四川蓝景光电技术有限责任公司 一种fpc电路板、折弯灯带和发光装置
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