CN102840468B - Lamp fitting - Google Patents

Abstract

The present invention provides a lamp, comprising a housing, a heat sink, a cooling fan and a light-emitting module. An assembly port and an electrical connector are respectively provided at two ends of the housing; the heat sink is arranged at the assembly port, and the heat sink has a substrate, and at least one baffle plate is arranged on the substrate to form a first airflow channel connected to the assembly port; the cooling fan is accommodated in the housing and combined with the heat sink, and the radial side wall of the cooling fan forms at least one guide surface, and the guide surface is opposite to the baffle plate of the heat sink, and a second airflow channel is formed between the guide surface and the inner wall surface of the housing, and the second airflow channel is connected to the assembly port; the light-emitting module is combined with the substrate and electrically connected to the electrical connector. The lamp of the present invention is connected to the assembly port by the first airflow channel and the second airflow channel, and can have low structural complexity, low manufacturing cost and high heat dissipation efficiency.

Description

lamps

technical field

The invention relates to a lamp, especially a lamp with low turbulence and good appearance.

Background technique

Existing lamp structure such as China Taiwan Invention No. I316121 "lamp" patent case, please refer to shown in Figure 1, this existing lamp 9 includes a first housing 91, a second housing 92, a radiator 93, a A light emitting element 94 and a cooling fan 95 . The first housing 91 and the second housing 92 are combined to form the shell of the lamp 9 , and the first housing 91 is provided with an air outlet 911 , and the second housing 92 is provided with an air inlet 921 The radiator 93, the light-emitting element 94 and the cooling fan 95 are accommodated in the shell composed of the first casing 91 and the second casing 92, and the radiator 93 is located between the light-emitting element 94 and the cooling fan 95 . Thereby, when the cooling fan 95 is in operation, the outside air can be sucked into the existing lamp 9 through the air inlet 921 of the second casing 92, and the air can be guided to pass through the radiator 93 and then flow out from the air outlet. 911 to blow out the existing lamp 9 to dissipate the heat energy generated by the light emitting element 94 during operation.

However, the shell of the existing lamp 9 is composed of the first housing 91 and the second housing 92, which not only increases the number of parts and components, but also makes the overall structure relatively complicated. The joint of the second casing 92 results in insufficient structural strength and insufficient assembly tightness. In addition, since the radiator 93, the light emitting element 94 and the cooling fan 95 are completely covered in the shell of the existing lamp 9, holes must be provided in the first housing 91 and the second housing respectively. 92 to form the air outlet portion 911 and the air inlet portion 921, which causes the existing lamp 9 not only to have disadvantages such as inconvenient processing and increased manufacturing costs, but also to be formed on the side where the light emitting element 94 is provided on the existing lamp 9 Holes affect the appearance, and it cannot further provide better waterproof and dustproof functions.

In addition, when the cooling fan 95 drives the airflow out of the existing lamp 9 from the radiator 93 through the air outlet 911 of the first casing 91, the airflow moving laterally due to the driving will hit the first casing 91 is adjacent to the wall surface of the air outlet 911, and the wall surface at this location is not provided with a corresponding flow guide structure, so it is easy to generate turbulent flow on the wall surface at this location.

Furthermore, when actually installing and using the existing lamp 9, in order to meet the overall aesthetic requirements of the decoration, the existing lamp 9 must be embedded and hidden behind the ceiling of the decoration compartment. However, once the existing lamp 9 is installed in an embedded and hidden manner, the air outlet part 911 and the air inlet part 921 will also be buried above the ceiling of the decorative partition, and only the light emitting element 94 is left exposed on the ceiling surface. . Because the space between the ceiling and the cement floor plate of the building itself is generally closed, the air in the space is not easy to circulate with the outside air, so the circulation effect of the air around the existing light fixture 9 is not good, which will reduce the performance of the lamp. The heat dissipation performance of the existing lamp 9 causes heat accumulation, which affects the service life of the existing lamp 9 .

Based on the above reasons, it is necessary to further improve the above-mentioned existing lamp 9 in order to have the effects of beautiful appearance, high smoothness of flow conduction, low manufacturing cost and high heat dissipation efficiency.

Contents of the invention

The main purpose of the present invention is to provide a lamp, in which at least one guide surface is formed on the radial side wall of a heat dissipation fan, and then an air flow channel is formed between the guide surface and a casing, so as to smoothly guide the air flow from the The assembly port of the luminaire flows into or out of the luminaire.

Another object of the present invention is to provide a lamp, in which a guide part is provided at the junction of a heat dissipation fan and a heat sink to guide the air flow smoothly, and has the effect of reducing turbulent flow.

Another object of the present invention is to provide a lamp, which does not need any air inlet or outlet holes in the shell, and can reduce the structural complexity and manufacturing cost while maintaining high heat dissipation efficiency.

Another object of the present invention is to provide a lamp without holes formed on the side where the light-emitting module is installed, so as to improve the appearance of the lamp.

Yet another object of the present invention is to provide a lamp in which a recessed portion is provided on the air guide fin to be located at the hub position of the fan wheel of a heat dissipation fan, so as to maintain the smooth operation of the fan wheel.

Another object of the present invention is to provide a lamp, which can be combined with a housing, a heat dissipation fan and a heat sink with only one screw fixing element, which has the advantages of reducing the complexity of the overall structure, improving the convenience of disassembly and assembly, reducing the manufacturing process and cost effect.

A luminaire according to the invention comprising:

A housing, the two ends of the housing are respectively provided with an assembly port and an electrical connector;

A heat sink is arranged at the assembly opening, the heat sink has a base plate, and at least one blocking plate is arranged on the base plate to form a first air flow channel communicated with the assembly opening;

A cooling fan is accommodated in the casing and combined with the radiator. The radial side wall of the cooling fan forms at least one guide surface, which is opposite to the barrier plate of the radiator, and is positioned on the guide surface. A second airflow channel is formed between the flow surface and the inner wall surface of the housing, and the second airflow channel communicates with the assembly port;

and a light-emitting module combined with the substrate and electrically connected with the electrical connector.

Preferably, the surface of the barrier plate facing the second airflow channel is arranged flush with the flow guide surface.

Preferably, the cooling fan has a wind-dispelling flow channel for accommodating a fan wheel, the wind-dispelling flow channel has one end aligned with the first airflow channel, and a guide portion is provided at the end so that the wind-dispelling flow channel faces toward the radiator Form an expanded diameter structure.

Preferably, the heat sink has at least one air guide part, the air guide part is combined with the blocking plate of the heat sink, and makes the diameter of the first air flow channel shrink toward the cooling fan.

Preferably, the air guiding part is in the shape of a curved sheet to form an inner concave surface facing the first airflow channel.

Preferably, the substrate of the heat sink is provided with at least one air-guiding fin located in the first airflow channel.

Preferably, the base plate is disposed at the assembly opening, and the at least one air guiding fin protrudes toward the inner wall of the casing beyond the side edge of the base plate.

Preferably, the at least one air guiding fin is scattered.

Preferably, the at least one air guiding fin includes a central portion and a vortex draining portion, and the vortex draining portion takes the central portion as a center in an arc-shaped scattering shape.

Preferably, the at least one air-guiding fin has several protrusion heights relative to the surface of the substrate, and a recess is formed at a place with a smaller protrusion height, and the recess is opposite to the fan wheel of the heat dissipation fan. hub position.

Preferably, the heat sink further has a flow guide piece combined with the at least one blocking plate and facing the flow guide portion of the cooling fan.

Preferably, the drainage sheet extends across the first airflow channel.

Preferably, the heat sink further has several flow guide connectors connected between the flow guide sheet and the base plate.

Preferably, the substrate of the heat sink is provided with at least one air guiding fin located in the first airflow channel, and the at least one air guiding fin is connected to the air guiding fin.

Preferably, the housing has an assembly portion, the cooling fan has a fixing portion, and the heat sink has a combination portion, wherein the fixing portion is combined with the combination portion and the assembly portion in positions opposite to each other.

The lamp of the present invention communicates with the assembly port through the first airflow channel and the second airflow channel, which can have low structural complexity, low manufacturing cost and high heat dissipation performance; Guide the air flowing in the first airflow passage, the driving wind flow and the second airflow passage, thereby avoiding the generation of turbulent flow; completely cover the base plate or light-transmitting cover of the assembly opening 11 in the axial direction of the assembly opening, which can lift The lamp of the present invention is beautiful in appearance; the recessed portion can prevent the flow guiding fin from affecting the rotation of the fan wheel, and maintain the smooth operation of the fan wheel; in addition, the fixed part of the cooling fan and the fan wheel The alignment relationship between the assembling part and the connecting part can further improve the convenience of disassembling and assembling of the lamp of the present invention.

Description of drawings

Figure 1: Assembled cutaway view of an existing luminaire.

Fig. 2: An exploded perspective view of the first embodiment of the lamp of the present invention.

Fig. 3: A cross-sectional view of the first embodiment of the lamp of the present invention along line 3-3 in Fig. 2 .

Fig. 4: A cross-sectional view of the first embodiment of the lamp of the present invention along line 4-4 in Fig. 2 .

Fig. 5: An exploded perspective view of the second embodiment of the lamp of the present invention.

Fig. 6: A cross-sectional view of the second embodiment of the lamp of the present invention along line 6-6 in Fig. 5 .

Fig. 7: A cross-sectional view of the second embodiment of the lamp of the present invention along line 7-7 in Fig. 5 .

Fig. 8: An exploded perspective view of the third embodiment of the lamp of the present invention.

Fig. 9: A cross-sectional view of the third embodiment of the lamp of the present invention along line 9-9 in Fig. 8 .

Fig. 10: A combined cross-sectional view of the third embodiment of the lamp of the present invention along line 10-10 in Fig. 8 .

Fig. 11: A cross-sectional view of the third embodiment of the lamp of the present invention along line 11-11 in Fig. 9 .

Fig. 12: A combined cross-sectional view of another arrangement of flow guiding and cooling fins of the third embodiment of the lamp of the present invention.

Fig. 13: An exploded perspective view of the fourth embodiment of the lamp of the present invention.

Fig. 14: A cross-sectional view of the fourth embodiment of the lamp of the present invention along line 14-14 in Fig. 13 .

Fig. 15: A cross-sectional view of the fourth embodiment of the lamp of the present invention along line 15-15 in Fig. 13 .

Description of main component symbols:

Detailed ways

In order to make the above-mentioned and other objects, features and advantages of the present invention more comprehensible, the preferred embodiments of the present invention are specifically cited below, together with the accompanying drawings, as follows:

Please refer to FIG. 2 to FIG. 4 , which represent the first embodiment of the lamp of the present invention, and the lamp at least includes a housing 1 , a radiator 2 , a cooling fan 3 and a light emitting module 4 . The casing 1 is used for combining at least one of the radiator 2 and the cooling fan 3 , and the cooling fan 3 is arranged inside the casing 1 ; the light emitting module 4 is combined with the radiator 2 .

The housing 1 is a hollow shell, and the housing 1 has an assembly port 11, an electrical connector 12 and at least one joint portion 13, wherein the assembly port 11 and the electrical connector 12 are respectively arranged on the housing 1 two ends, and are preferably located at opposite ends of the housing 1 as shown in FIG. 2 . The assembly port 11 communicates with the space inside the shell 1, so that the cooling fan 3 can be smoothly assembled inside the shell 1; the electrical connector 12 is used to receive electric power as the power source of the lamp of the present invention; the assembly part 13 It is for abutting and combining with at least one of the radiator 2 and the cooling fan 3 .

The heat sink 2 is made of thermally conductive material, and the heat sink 2 has a base plate 21 , at least one blocking plate 22 , a first airflow channel 23 and at least one joint portion 24 . The substrate 21 is disposed adjacent to the assembly port 11 of the housing 1, wherein the substrate 21 has a first surface 211 and a second surface 212 opposite to each other, and when the radiator 2 is combined with the housing 1, the first The surface 211 faces away from the assembly opening 11 , while the second surface 212 faces the assembly opening 11 , and the base plate 21 completely covers the assembly opening 11 in the axial direction of the assembly opening 11 . The at least one barrier plate 22 is disposed on the second surface 212 of the substrate 21 and extends away from the first surface 211 , so that the at least one barrier plate 22 is used to form the second surface 212 of the substrate 21. The first airflow passage 23 communicates with the interior of the casing 1 through the assembly opening 11 . The at least one bonding portion 24 is formed on at least one of the base plate 21 and the at least one blocking plate 22 for abutting and bonding with the assembling portion 13 of the housing 1 . In addition, the heat sink 2 preferably further has at least one air guiding fin 25 located in the first airflow passage 23 and having a protruding height relative to the second surface 212 . Thereby, the at least one air guiding fin 25 can not only increase the heat dissipation surface area of the radiator 2, but also guide the airflow in the first airflow channel 23 to move in a predetermined direction. In this embodiment, the number of the at least one blocking board 22 is selected as two, and the first airflow channel 23 is located between the two blocking boards 22 . In addition, the combining portion 24 and the assembling portion 13 are firmly combined by a first screw element F1.

The cooling fan 3 can be selected as an axial fan or a centrifugal fan, and is preferably an axial fan. The heat dissipation fan 3 is combined with the heat sink 2 , and the heat dissipation fan 3 has a wind-dispelling channel 31 , a fan wheel 32 , at least one flow guide surface 33 and a flow guide portion 34 . Specifically, the wind-dispelling channel 31 has a first end 311 and a second end 312, wherein the first end 311 and the second end 312 are separated, and the first end 311 is facing and facing the radiator. 2 of the first air flow passage 23; the fan wheel 32 is arranged in the wind-dispelling flow channel 31, so that the airflow in the lamp of the present invention is driven through the wind-dispelling flow channel 31 by rotating the fan wheel 32; the at least one flow guide surface 33 is formed on the radially outer wall of the cooling fan 3, and is arranged in alignment with the at least one blocking plate 22, wherein a second air flow channel C and The assembly port 11 is connected; the flow guiding part 34 is arranged on the first end 311 of the wind-dispelling flow channel 31, and the flow-guiding part 34 is to make the wind-dispelling flow channel 31 go from the position where the fan wheel 32 is provided to the second end. The one end 311 forms a diameter-expanding structure, that is, forms the diameter-expanding structure towards the heat sink 2 . Wherein, the at least one air guide surface 33 is preferably disposed flush with the surface of the at least one barrier plate 22 facing the second airflow channel C, and the air guide part 34 is preferably in the shape of a curved sheet, A concave surface 341 is formed to face the first air passage 23 . Therefore, by providing the guide surface 33 and the guide part 34, the airflow can be smoothly guided to flow in the first airflow passage 23, the wind-dispelling flow passage 31 and the second airflow passage C, so as to improve the smoothness of the airflow guide. Spend. In addition, according to the rotation direction of the fan wheel 32, the first end 311 can be used as the air outlet side of the cooling fan 3, and the second end 312 is correspondingly used as the air inlet side of the cooling fan 3, or the first end 311 serves as the air inlet side and the second end 312 serves as the air outlet side. In addition, as shown in FIG. 3 , the cooling fan 3 preferably further has at least one fixing portion 35 , and the fixing portion 35 is opposite to the combining portion 24 and the assembling portion 13 . Thereby, the heat sink 2 and the cooling fan 3 can be stably assembled together in the casing 1 only by using the screw fixing element F1 to pass through the joint portion 24, the fixing portion 35 and the assembly portion 13 in sequence, so that The complexity of the overall structure of the lamp of the present invention is reduced, the convenience of disassembly and assembly is improved, and the manufacturing process and cost can also be reduced.

The light emitting module 4 is combined with the first surface 211 of the substrate 21 of the heat sink 2 and exposed to the casing 1 , and the light emitting module 4 includes a light emitting element 41 and a control substrate 42 . The light-emitting element 41 can be a light-emitting diode (LED), a light bulb or other components with the same light-emitting function; The surface 211 is convenient for the heat sink 2 to effectively reduce the temperature of the light emitting module 4 during actual operation, so as to achieve a better heat dissipation effect.

The light fixture of the present invention can be installed on walls, ceilings or other places where lighting is desired during actual use; 1 assembly port 11, the substrate 21 of the heat sink 2 and the light-emitting module 4 are exposed on the ceiling surface; in addition, the electrical connector 12 of the housing 1 can be electrically connected with a general power supply system to provide power to the light-emitting The control substrate 42 of the module 4 further controls the light emitting element 41 to generate light. When the radiating fan 3 was in operation, since the first airflow passage 23 and the second airflow passage C were connected to the assembly port 11, one of the first airflow passage 23 and the second airflow passage C could be used to reduce the lower temperature first. The air is introduced into the housing 1 through the assembly port 11, and then passes through the other one of the first air flow channel 23 and the second air flow channel C to discharge the higher temperature air carrying the heat of the light emitting module 4 through the assembly port 11. shell1. Wherein, the heat of the light emitting module 4 is conducted to the heat sink 2 first, and then transferred to the air around the heat sink 2 by way of heat conduction to form the higher temperature air.

By virtue of the structural features disclosed above, the lamp of the present invention can directly communicate with the first airflow channel 23 and the second airflow channel C through the assembly port 11 serving as an assembly function, so that the shell 1 does not need to be additionally processed to open any air inlet holes or The air outlet can effectively reduce the complexity of the overall structure, so as to improve the convenience of processing and reduce the manufacturing cost, and no hole will be formed on the side where the light-emitting module 4 is installed, which will not affect the appearance of the lamp of the present invention. . Furthermore, since the heat dissipation fan 3 has the guide surface 33 and the blocking plate 22 arranged in position, it can drive the airflow to flow smoothly along the second airflow channel C between the assembly port 11 and the fan wheel 32; at the same time , and because the cooling fan 3 has the guide portion 34 disposed on the first end 311 of the wind-dispelling channel 31, when the cooling fan 3 drives airflow to flow between the first airflow channel 23 and the fan wheel 32, The airflow can be smoothly guided by the concave surface 341 of the air guide part 34 , thereby avoiding turbulent flow between the first airflow channel 23 and the fan wheel 32 . In addition, since the first airflow channel 23 and the second airflow channel C used to introduce and export airflow in the lamp of the present invention are connected to the assembly port 11, the cooling fan 3 can smoothly introduce and export airflow to improve the overall heat dissipation performance. Furthermore, the service life of the lamp of the present invention is effectively improved.

Please refer to FIG. 5 to FIG. 7 , which represent the second embodiment of the lamp of the present invention. Compared with the aforementioned first embodiment, this embodiment replaces the radiator 2 of the first embodiment with another radiator 5, and still uses the casing 1 to accommodate the radiator 5, the cooling fan 3 and the light emitting module 4. Therefore, the structure of the casing 1, the cooling fan 3 and the light emitting module 4 will not be described in detail below. The heat sink 5 also has a base plate 51 , at least one barrier plate 52 , a first airflow channel 53 and at least one joint portion 54 . The base plate 51 is disposed in the assembly port 11, and the base plate 51 has at least one first side edge 513 and at least one second side edge 514 connected to each other in addition to having a first surface 511 and a second surface 512 opposite to each other. Between the first surface 511 and the second surface 512 , the first side edge 513 and the second side edge 514 are spaced apart from the wall surface of the housing 1 forming the assembly opening 11 . The at least one blocking plate 52 is correspondingly disposed on the second surface 512 adjacent to the second side edge 514, so as to form the first air flow passage 53 on the two surfaces 512, and the blocking plate 52 is a guide for the cooling fan 3. The flow surface 33 is opposite to each other, and the surface of the barrier plate 52 facing the second air flow channel C is preferably disposed flush with the flow guide surface 33 . Accordingly, the first air passage 53 and the second air passage C communicate with the outside of the housing 1 through the assembly port 11 of the housing 1 . The at least one bonding portion 54 is formed on at least one of the base plate 51 and the at least one blocking plate 52 for abutting and bonding with the assembling portion 13 of the housing 1 . In addition, the heat sink 5 can also have at least one air-guiding fin 55 located in the first airflow channel 53, and has a protruding height relative to the second surface 512, and the at least one air-guiding fin 55 is higher than the second surface 512. Preferably, it protrudes beyond the first side edge 513 toward the inner wall of the casing 1 . Thereby, the heat sink 5 of this embodiment can be fully accommodated inside the casing 1 . Please refer to Fig. 5 to Fig. 7 again, the lamp of the present invention may further include a light-transmitting cover 6, and the light-transmitting cover 6 has an opening 61 combined with the heat sink 2 for the light-emitting module 4 to pass through the The opening 61 is accommodated in the transparent cover 6 . The light-transmitting cover 6 also has a guide wall 62 facing the assembly port 11, so that an air flow channel is formed between the guide wall 62 and the wall surface of the housing 1 forming the assembly port 11, and the air channel communicates with the assembly port 11. The assembly opening 11 , wherein the light-transmitting cover 6 preferably completely covers the assembly opening 11 in the axial direction of the assembly opening 11 . In this way, different colors or types of light shields can be selected as the light-transmitting shield 6 according to requirements, so as to produce different lighting effects and also have the function of protecting the light emitting module 4 . In addition, if the light-transmitting cover 6 completely covers the assembly port 11 in the axial direction of the assembly port 11, it can prevent the lamp of the present invention from forming a hole on the side where the light-emitting module 4 is provided, so as to improve the appearance beautiful.

Please refer to FIG. 8 and FIG. 9 , which represent a third embodiment of the lamp of the present invention. Compared with the lamp of the second embodiment, the lamp of the third embodiment of the present invention replaces the radiator 5 of the second embodiment with another radiator 7, and uses the housing 1 to house the radiator 7 and cooling fan 3 and the light-emitting module 4, so the structure of the casing 1, the cooling fan 3 and the light-emitting module 4 will not be described in detail below. The radiator 7 has a base plate 71, at least one barrier plate 72, a first air flow channel 73 and at least one joint portion 74, wherein the base plate 71 also has a first surface 711, a second surface 712, at least a first The side edge 713 and at least one second side edge 714; the connection relationship and arrangement of the above-mentioned various structures are all the same as the base plate 51, the blocking plate 52, the first air flow channel 53 and the joint of the heat sink 5 of the second embodiment. 54 is similar. The difference between the heat sink 7 and the heat sink 5 of the second embodiment lies in that: the heat dissipation fins 75 of the heat sink 7 are scattered, and the heat sink 7 is further provided with at least one air flow fin 76 . In detail, please also refer to FIG. 11 , the air guiding fin 75 includes a central portion 751 and a scroll-shaped air guiding portion 752 . The central part 751 is preferably located opposite to the light emitting module 4, so that the waste heat generated by the light emitting module 4 can be quickly transferred to the guide heat sink 75; The center is arc-shaped and scattered, so that when the fan wheel 32 of the cooling fan 3 drives the airflow from the cooling fan 3 through the radiator 7 to the assembly port 11, the first end 311 of the cooling fan 3 sends out the rotation The airflow can be smoothly introduced into the first airflow passage 73 through the volute guide part 752; or, when the fan wheel 32 of the cooling fan 3 drives the airflow to pass through the radiator 7 to the cooling fan 3 from the assembly port 11 The airflow in the first airflow channel 73 can be guided by the vortex-shaped flow guide part 752 to form a vortex flow, and then be drawn by the fan wheel 32 to flow into the cooling fan 3 more smoothly.

The drain piece 76 of the heat sink 7 is combined with the at least one blocking plate 72, extends along the first side edge 713 and crosses the first air flow channel 73, and the drain plate 76 is preferably opposite to the side of the cooling fan 3 The flow guide part 34 . Therefore, by means of the air guiding portion 34 and the air guiding fins 76, the air flow can smoothly flow between the fan wheel 32 and the assembly port 11 without generating turbulent flow at the junction of the radiator 2 and the cooling fan 3 . In addition, as shown in FIG. 11 , in order to strengthen the joint stability of the drain sheet 76 , the heat sink 7 may additionally be provided with several flow guide connectors 77 connected between the drain sheet 76 and the substrate 71 ; or, as shown in FIG. As shown in FIG. 12 , the volute-shaped drain portion 752 of the air-guiding fin 75 can also protrude from the first side edge 713 along the second surface 712 and connect to the drain fin 76, thereby strengthening the structure and simultaneously Improve heat dissipation and drainage effect.

Please refer to FIG. 13 to FIG. 15 , which represent a fourth embodiment of the lamp of the present invention. Compared with the lamps of the above-mentioned embodiments, the lamp of the fourth embodiment of the present invention is that the shell 1 accommodates a cooling fan 3' and a radiator 8, and the radiator 8 also has a surface for the light-emitting module to use. Group 4 is set, so the structure of the housing 1 and the light emitting module 4 will not be described in detail below. The structure of the heat dissipation fan 3' is similar to that of the heat dissipation fans 3 of the above-mentioned embodiments, and also has a wind-dispelling flow channel 31', a fan wheel 32', at least one guide surface 33' and a fixed part 35', but in this embodiment The cooling fan 3' of the example is not provided with a guide portion at the first end 311' of the wind-dispelling channel 31'. In addition, the radiator 8 has a base plate 81, at least one barrier plate 82, a first air flow channel 83 and at least one joint portion 84, wherein the base plate 81 also has a first surface 811, a second surface 812, at least one The first side edge 813 and at least one second side edge 814; the connection relationship and arrangement of the above-mentioned various structures are the same as the base plate 51, the barrier plate 52, the first air flow channel 53 and the second embodiment of the radiator 5. Joint 54 is similar. The difference between the heat sink 8 and the heat sink 5 of the second embodiment mainly lies in that: the flow guiding fin 85 of the heat sink 8 has a recessed portion 851 , and the heat sink 8 further has at least one flow guiding portion 86 . In this way, even if the heat dissipation fan 3 having the air guide portion 34 in the foregoing embodiments is not used, the fan wheel 32 ′ and the base plate 81 can be smoothly guided by the air guide portion 86 of the radiator 8 the airflow between.

In detail, the recessed portion 851 of the radiator 8 is located opposite to the hub of the fan wheel 32' of the cooling fan 3', so as to prevent the flow guiding fins 85 from affecting the rotation of the fan wheel 32'. The air guiding fin 85 has several kinds of protrusion heights, the protrusion height in the recessed portion 851 is smaller, and the protrusion height outside the recessed portion 851 is larger. The guide portion 86 is at least combined with the barrier plate 82 of the heat sink 8, and makes the first airflow channel 83 have a diameter-reduced structure, that is, the diameter-reduced structure is formed from the substrate 81 toward the cooling fan 3'. Wherein, the guide portion 86 preferably extends across the first airflow channel 83 along the first side edge 813 and is in the shape of a curved sheet to form a concave surface 861 facing the first airflow channel 83 , Furthermore, the air flow is smoothly guided to flow between the fan wheel 32 ′ and the assembly opening 11 , so as to improve the effect of air diversion. In addition, the air guiding fin 85 can be extended and combined with the concave surface 861 of the air guiding part 86 . In addition, the cooling fan 3' can also be fixed on the heat sink 8 with a second screw fixing element F2, and the first screw fixing element F1 is only used to combine and fix the joint portion 84 and the assembly portion 13.

To sum up, by connecting the first airflow channel 23, 53, 73, 83 and the second airflow channel C to the assembly port 11, the lamp of the present invention can have low structural complexity, low manufacturing cost and high heat dissipation performance; In addition, the air guiding surfaces 33, 33' and the air guiding parts 34, 86 can be smoothly guided between the first air flow channels 23, 53, 73, 83, the wind driving channels 31, 31' and the second air flow channel C The air flowing in the middle, thereby avoiding the generation of turbulence; the base plate 21 or the light-transmitting cover 6 of the assembly port 11 is completely covered in the axial direction of the assembly port 11, which can improve the appearance of the lamp of the present invention; 851 can prevent the flow guiding fin 85 from affecting the rotation of the fan wheel 32' and maintain the smoothness of the operation of the fan wheel 32'; in addition, by means of the fixing part 35 of the cooling fan 3 and the connecting part 13 and The alignment relationship of the joint parts 24, 54, 74 can further improve the convenience of disassembly and assembly of the lamp of the present invention.

But the above is only a preferred embodiment of the present invention, and should not limit the implementation scope of the present invention; therefore, all simple equivalent changes and modifications made according to the patent scope of the present invention and the contents of the creation instructions, All should still fall within the scope covered by the patent of the present invention.

Claims (14)

1. a light fixture, is characterized in that, it comprises:

A shell, the two ends of this shell are respectively equipped with an assembly mouth and an electrical connector;

A radiator, is arranged at this assembly mouth, and this radiator has a substrate, and this substrate is provided with two bafflers, and form first gas channel between two bafflers of this substrate, this first gas channel is connected with this assembly mouth;

A radiator fan, to be located in this shell and to be incorporated into this radiator, the radial sidewalls of this radiator fan forms at least one guide face, and second gas channel is formed between this guide face and internal face of this shell, this second gas channel is connected with this assembly mouth, this baffler is towards the surface setting concordant with this guide face of this second gas channel, and this radiator fan has an accommodating impeller of wind dispelling runner, this wind dispelling runner has one end and this first gas channel contraposition, and this end is provided with a diversion division makes this wind dispelling runner form expanding structure towards this radiator, and

An illuminating module, is incorporated into this substrate and is electrically connected this electrical connector.

2. light fixture as claimed in claim 1, it is characterized in that, this diversion division is curved arc sheet and forms a concave surface towards this first gas channel.

3. light fixture as claimed in claim 1, is characterized in that, radiator separately has a drainage piece and is incorporated into this at least one baffler and to the diversion division being positioned at this radiator fan.

4. light fixture as claimed in claim 3, it is characterized in that, this drainage piece extends across this first gas channel.

5. light fixture as claimed in claim 3, it is characterized in that, this radiator separately has several water conservancy diversion connector and is connected between this drainage piece and this substrate.

6. light fixture as claimed in claim 3, it is characterized in that, the substrate of this radiator is provided with at least one flow-guiding radiation sheet and is positioned at this first gas channel, and this at least one flow-guiding radiation sheet connects this drainage piece.

7. a light fixture, is characterized in that, it comprises:

A shell, the two ends of this shell are respectively equipped with an assembly mouth and an electrical connector;

A radiator, is arranged at this assembly mouth, and this radiator has a substrate, and this substrate is provided with two bafflers, and form first gas channel between two bafflers of this substrate, this first gas channel is connected with this assembly mouth;

A radiator fan, to be located in this shell and to be incorporated into this radiator, the radial sidewalls of this radiator fan forms at least one guide face, and second gas channel is formed between this guide face and internal face of this shell, this second gas channel is connected with this assembly mouth, this baffler is towards the surface setting concordant with this guide face of this second gas channel, and this radiator has at least one diversion division, this diversion division is incorporated into the baffler of this radiator, and makes this first gas channel be undergauge structure towards this radiator fan; And

An illuminating module, is incorporated into this substrate and is electrically connected this electrical connector.

8. light fixture as claimed in claim 7, it is characterized in that, this diversion division is curved arc sheet and forms a concave surface towards this first gas channel.

9. a light fixture, is characterized in that, it comprises:

A shell, the two ends of this shell are respectively equipped with an assembly mouth and an electrical connector;

A radiator, is arranged at this assembly mouth, and this radiator has a substrate, and this substrate is provided with two bafflers, and form first gas channel between two bafflers of this substrate, this first gas channel is connected with this assembly mouth;

A radiator fan, to be located in this shell and to be incorporated into this radiator, the radial sidewalls of this radiator fan forms at least one guide face, and second gas channel is formed between this guide face and internal face of this shell, this second gas channel is connected with this assembly mouth, this baffler is towards the surface setting concordant with this guide face of this second gas channel, the substrate of this radiator is provided with at least one flow-guiding radiation sheet and is positioned at this first gas channel, and this at least one flow-guiding radiation sheet is dispersion shape; And

An illuminating module, is incorporated into this substrate and is electrically connected this electrical connector.

10. light fixture as claimed in claim 9, it is characterized in that, this substrate is arranged at this assembly mouth, and this at least one flow-guiding radiation sheet protrudes out towards the internal face of this shell the lateral margin exceeding this substrate.

11. light fixtures as claimed in claim 9, is characterized in that, this at least one flow-guiding radiation sheet comprises a central portion and a volute conduction part, and this volute conduction part curved dispersion shape centered by this central portion.

12. 1 kinds of light fixtures, it is characterized in that, it comprises:

A shell, the two ends of this shell are respectively equipped with an assembly mouth and an electrical connector;

A radiator, is arranged at this assembly mouth, and this radiator has a substrate, and this substrate is provided with two bafflers, and form first gas channel between two bafflers of this substrate, this first gas channel is connected with this assembly mouth;

A radiator fan, to be located in this shell and to be incorporated into this radiator, the radial sidewalls of this radiator fan forms at least one guide face, and second gas channel is formed between this guide face and internal face of this shell, this second gas channel is connected with this assembly mouth, this baffler is towards the surface setting concordant with this guide face of this second gas channel, the substrate of this radiator is provided with at least one flow-guiding radiation sheet and is positioned at this first gas channel, this at least one flow-guiding radiation sheet has several protrusion heights relative to the surface of this substrate, and form a depressed part at the place of less protrusion height, this depressed part is to the hub positions of impeller being positioned at this radiator fan, and

An illuminating module, is incorporated into this substrate and is electrically connected this electrical connector.

13. light fixtures as claimed in claim 12, it is characterized in that, this substrate is arranged at this assembly mouth, and this at least one flow-guiding radiation sheet protrudes out towards the internal face of this shell the lateral margin exceeding this substrate.

14. 1 kinds of light fixtures, it is characterized in that, it comprises:

A shell, the two ends of this shell are respectively equipped with an assembly mouth and an electrical connector;

A radiator, is arranged at this assembly mouth, and this radiator has a substrate, and this substrate is provided with two bafflers, and form first gas channel between two bafflers of this substrate, this first gas channel is connected with this assembly mouth;

A radiator fan, to be located in this shell and to be incorporated into this radiator, the radial sidewalls of this radiator fan forms at least one guide face, and second gas channel is formed between this guide face and internal face of this shell, this second gas channel is connected with this assembly mouth, this baffler is towards the surface setting concordant with this guide face of this second gas channel, this shell has a group connecting part, this radiator fan has a fixed part, this radiator has a joint portion, and wherein this fixed part is combined with this joint portion and the contraposition of group connecting part phase; And

An illuminating module, is incorporated into this substrate and is electrically connected this electrical connector.