WO2021082585A1 - 一种光源装置及灯具 - Google Patents

一种光源装置及灯具 Download PDF

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Publication number
WO2021082585A1
WO2021082585A1 PCT/CN2020/106971 CN2020106971W WO2021082585A1 WO 2021082585 A1 WO2021082585 A1 WO 2021082585A1 CN 2020106971 W CN2020106971 W CN 2020106971W WO 2021082585 A1 WO2021082585 A1 WO 2021082585A1
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WO
WIPO (PCT)
Prior art keywords
light
light guide
guide rod
source device
light source
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.)
Ceased
Application number
PCT/CN2020/106971
Other languages
English (en)
French (fr)
Inventor
付锦江
陈彬
姜茹
马勇
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.)
YLX Inc
Original Assignee
YLX Inc
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 YLX Inc filed Critical YLX Inc
Priority to US17/766,134 priority Critical patent/US11873963B2/en
Priority to EP20881112.5A priority patent/EP4036468B1/en
Publication of WO2021082585A1 publication Critical patent/WO2021082585A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/236—Light guides characterised by the shape of the light guide
    • F21S43/237—Light guides characterised by the shape of the light guide rod-shaped
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
    • F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/16—Laser light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/192—Details of lamp holders, terminals or connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/24—Light guides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/29—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/37—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors characterised by their material, surface treatment or coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/33—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors characterised by their material, surface treatment or coatings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S45/00—Arrangements within vehicle lighting devices specially adapted for vehicle exteriors, for purposes other than emission or distribution of light
    • F21S45/40—Cooling of lighting devices
    • F21S45/42—Forced cooling
    • F21S45/43—Forced cooling using gas
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/101—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening permanently, e.g. welding, gluing or riveting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
    • F21S41/125—Coloured light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/176—Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/14—Light emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/13—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source characterised by the type of light source
    • F21S43/16—Light sources where the light is generated by photoluminescent material spaced from a primary light generating element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/10—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the light source
    • F21S43/19—Attachment of light sources or lamp holders
    • F21S43/195—Details of lamp holders, terminals or connectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/242—Light guides characterised by the emission area
    • F21S43/243—Light guides characterised by the emission area emitting light from one or more of its extremities
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/235—Light guides
    • F21S43/247—Light guides with a single light source being coupled into the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/20—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by refractors, transparent cover plates, light guides or filters
    • F21S43/27—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/30—Semiconductor lasers

Definitions

  • the present invention relates to the field of lighting technology, in particular to a light source device.
  • Lamps and lanterns on vehicles are an important factor that affects the driving safety of vehicles.
  • the development of the automobile industry has put forward higher and higher requirements for vehicle lamps. Since LED lamps began to replace halogen lamps on a large scale and entered the pre-installation market, the market for halogen filament bulbs has gradually shrunk. This alternate new and old technology has brought about the problem of the supply of parts in the stock market.
  • halogen filament bulbs usually exhibit brightness decay after 3-5 years of use, which affects the safety of driving at night.
  • the optical architectures of LED car lights and halogen lamps in the front-end market are very different, and it is impossible to directly replace the LED light-emitting chip to the position of the halogen filament. For this reason, an LED bulb has appeared on the market that mimics the structure of the halogen bulb.
  • the chip is set at the light-emitting point of the halogen bulb filament to simulate the light-emitting of the halogen bulb.
  • the light-emitting angle of this kind of LED bulb is affected by the backplane where the LED chip is located, and cannot perfectly simulate the light pattern of the halogen bulb, and there is a serious heat dissipation problem, which cannot achieve sufficiently high brightness.
  • the LED chip is arranged at the bottom of the bulb, and the light emitted by the LED chip is guided to the light emitting part of the light guide rod to exit through the light guide rod.
  • This technical solution separates the light source that provides light from the light guide for light shaping, unlike the integrated structure of halogen filament bulbs or LED bulbs on the market, so there are optical problems, thermal problems and structural stability of the combination of LED chips and light guide rods.
  • sexual issues Especially in the field of automotive lighting applications, on the one hand, the light bulb is in a vibrating environment, and the stability of the separated structure of the light source light guide rod is poor.
  • automotive lighting has very high requirements for light distribution. Changes in the location will cause a huge impact on the light distribution of the car's lighting. Therefore, there is an urgent need for a stable light bulb structure.
  • the present invention claims a light source device comprising: a light-emitting chip arranged on a substrate for emitting first light; a light guide bar including a first light A light guide portion and a second light guide portion, the first light guide portion includes a light incident end surface, the first light enters the light guide rod through the light incident end surface, and passes through the first light guide portion To the second light guide portion, the second light guide portion includes a light exit surface for emitting light; the first positioning member includes a groove for accommodating the light guide rod, the first The positioning member is directly or indirectly fixed in position with the substrate; the movable fixing assembly fixes the light guide rod along the radial direction of the light guide rod with the groove of the first positioning member, and the movable fixing assembly is located at Deformation occurs when the light guide rod is fixed.
  • the present invention includes the following beneficial effects: on the one hand, the first positioning member and the substrate of the light-emitting chip are fixed to each other; on the other hand, the groove of the first positioning member is used to accommodate and limit the position of the light guide rod, so that the light-emitting chip
  • the light guide rod is relatively fixed in the radial dimension of the light guide rod, and at the same time, the movable fixing component is squeezed to make the light guide rod deformed, and the light guide rod is fixed in the groove of the first positioning member to avoid the light guide rod along the axis.
  • the sliding direction finally realizes the light source device with stable structure.
  • the light guide rod is a solid light guide rod
  • the movable fixing assembly includes an isolation layer, an elastic layer, and a rigid layer sequentially arranged radially outward of the light guide rod, and the isolation layer It is a light reflection layer.
  • the isolation layer includes steel sheet, aluminum sheet, metal paper or metal film layer.
  • the elastic layer includes silica gel, rubber or plastic.
  • the first positioning member and the base plate respectively include corresponding positioning posts and positioning holes, and the first positioning member and the base plate are fixedly connected to the positioning holes through the positioning posts, so that The light-emitting chip and the light guide rod are fixed in position along a direction parallel to the light-emitting surface of the light-emitting chip.
  • it further includes a protection pad disposed on the substrate, the protection pad is disposed around the light-emitting chip, and the height of the protection pad relative to the substrate is greater than that of the light-emitting chip. Relative to the height of the substrate, the light incident end surface of the light guide rod is in contact with the protective pad. While avoiding direct contact between the light guide rod and the light emitting chip, this technical solution provides a solution to minimize the distance between the light guide rod and the light emitting chip. On the one hand, it avoids the direct thermal contact between the light guide rod and the light guide rod and the difference in thermal expansion coefficient. The structural stability problem caused by the matching, on the other hand, improves the coupling efficiency of the light emitted from the light-emitting chip into the light guide rod.
  • the light guide rod and the protective pad are connected by glue. This technical solution enables the light guide rod to be pulled by the glue in the axial direction, and further improves the axial position stability of the light guide rod.
  • the curing temperature of the glue is 60°C to 100°C. This glue selection makes it possible to directly use the lighting of the light-emitting chip to cure the glue, which simplifies the production process of the light source device, does not require an additional heating and curing device, and saves costs.
  • the protective pad is a ceramic pad.
  • the ceramic spacer and the substrate on which the light-emitting chip is located and the light guide rod have more similar thermal expansion coefficients, mechanical properties, and better compatibility, and the ceramic spacer is easy to process and easy to grind.
  • the long side of the cross section of the protective pad is close to the light-emitting chip.
  • This technical solution can increase the contact area between the light guide rod and the protective pad as much as possible, and when glue is used for bonding, it has a larger bonding area, thereby improving the bonding stability.
  • the cross section of the protective pad is rectangular, the long side is the length of the rectangle; when the protective pad is of irregular shape, the long side is the long side direction of the smallest circumscribed rectangle of the protective pad.
  • No collection lens is provided between the light-emitting chip and the light incident end surface to avoid the expansion of the light spot when the divergence angle is reduced, and the light collection efficiency of the light-emitting chip is improved by reducing the distance between the light emitting chip and the light incident end surface as much as possible.
  • the first positioning member further includes a through hole, and the light guide rod passes through the through hole.
  • it further includes a heat dissipation assembly disposed on the back of the substrate, and the heat dissipation assembly includes a fan and a plurality of heat dissipation fins arranged around the fan.
  • the present invention also claims a lamp, including the light source device described in any one of the above, further comprising a chuck, the chuck is used for assembly and connection with the lamp housing, the light source device and the chuck pass The first positioning member is assembled and connected.
  • This technical solution improves the installation flexibility of the lamp, and the light source device can be used as an independent module to be installed in any suitable lamp via a chuck, which is beneficial to cost saving and mass production.
  • Figure 1 is an exploded view of the structure of the light source device of the present invention
  • FIG. 2 is a schematic diagram of the structure of the light guide rod of the light source device of the present invention.
  • FIG. 3 is a schematic diagram of the radial fixing structure of the light guide rod of the light source device of the present invention.
  • FIG. 4 is a schematic diagram of a partial structure of the light source device of the present invention.
  • FIG. 5 is a schematic diagram of another partial structure of the light source device of the present invention.
  • Fig. 6 is another schematic diagram of the structure of the light source device of the present invention.
  • FIG. 7 is a schematic diagram of the heat dissipation assembly of the light source device of the present invention.
  • FIG. 1 is an exploded view of the structure of the light source device of the present invention, which mainly includes a crimping plate 1, a heat sink 2, a fan 3, and a substrate 4 (the light-emitting chip is arranged on the substrate 4, the angle is blocked, and the protective pad 12 Set on the substrate 4), the sealing pad 5, the first positioning member 6, the movable fixing assembly (including the rigid layer 7, the elastic layer 8 and the isolation layer 9), the light guide rod 10, and the chuck 11.
  • the light emitting chip on the substrate 4 emits first light, which enters the light guide rod 10 and then exits through the light exit surface of the light guide rod 10 to form an illumination light distribution.
  • the base plate 4 is installed on the front of the radiator 2 by connecting fastening elements, and the fan 3 is installed on the back of the radiator 2 and is located inside the annular space enclosed by the radiating fins of the radiator.
  • the protective pad 12 is adhered to the substrate 4, and the light guide rod 10 and the movable fixing assembly are installed on the first positioning member 6.
  • the gasket 5 is installed between the radiator 2 and the first positioning member 6 to act as a seal.
  • the chuck 11 is connected with the first positioning member 6 for connecting with the external structure of the lamp.
  • the light emitting chip is arranged on the substrate 4 and used for emitting the first light.
  • the light-emitting chip can be a light-emitting diode LED or a laser diode LD.
  • the light-emitting chip provides the original illuminating light of the light source device and is also the first heat source of the light source device. Therefore, it is necessary to consider both the coupling efficiency of the light-emitting chip and the heat dissipation of the light-emitting chip.
  • FIG. 2 is a schematic diagram of the structure of the light guide rod of the light source device of the present invention.
  • the light guide rod 10 includes a first light guide part 101 and a second light guide part 102 (separated by a dotted line as shown in the figure), wherein the first light guide part 101 and the second light guide part 102 may be two physically separated parts.
  • a light guide structure (which can be bonded together by an adhesive), or it can be two artificially divided areas on a light guide rod according to different functions.
  • the first light guide portion 101 and the second light guide portion 102 perform different functions.
  • the first light guide portion 101 is responsible for guiding incident light to the second light guiding portion 102
  • the second light guiding portion 102 is responsible for guiding light Shoot out.
  • the first light guide portion 101 includes a light incident end surface 1011.
  • the first light enters the light guide rod 10 through the light incident end surface 1011, and reaches the second light guide portion 102 after being continuously reflected.
  • the second light guide portion 102 has a cross-sectional area along the The feature that the direction of the optical axis is continuously reduced forms a side surface that is inclined with respect to the optical axis of the light guide rod 10, that is, the light exit surface 1022, so that light can exit from the side surface.
  • the light guide rod is preferably a solid light guide rod, and the light is transmitted in the light guide rod by means of total internal reflection.
  • the solid light guide rod can be a material structure such as a glass rod, a quartz rod, a ceramic rod, etc., and has a relatively high refractive index to ensure total internal reflection of light.
  • the light emitting chip emits white light
  • the inclined light exit surface 1022 of the second light guide portion 102 is provided with a diffuse reflection structure, so that the white light exits through the side surface.
  • the light-emitting chip can also emit light of other colors.
  • the light-emitting chip is a blue LD
  • the light exit surface of the second light guide portion is provided with a yellow fluorescent material. To absorb part of the blue light and emit yellow light, so that the unabsorbed blue light and the emitted yellow light are mixed into white light.
  • the optical structure of the light-emitting chip + light guide rod of the present invention is to simulate the filament, and the light-emitting point (ie, the light exit surface) needs to be similar to the light-emitting point of the filament lamp, so the radial size of the light guide rod is required to be as small as possible .
  • reducing the radial size of the light guide rod 10 is also beneficial to increase the number of light reflections and improve the uniformity of the beam.
  • the center alignment accuracy of the light guide rod 10 and the light-emitting chip becomes particularly important, otherwise, part of the light emitted by the light-emitting chip cannot be collected.
  • FIG. 3 is a schematic diagram of the radial fixing structure of the light guide rod of the light source device of the present invention, and the schematic diagram is a cross-sectional view perpendicular to the optical axis of the light guide rod 10.
  • the first positioning member 6 includes a groove 61 for accommodating the light guide rod 10.
  • the movable fixing assembly 789 squeezes the light guide rod 10 and fixes the light guide rod 10 along the radial direction together with the groove 61.
  • the movable fixing assembly 789 is movably detachable relative to the first positioning member 6, and deforms when fixing the light guide rod to generate a radial force on the light guide rod 10, which further provides an axial direction for the light guide rod 10 The friction force prevents the light guide rod 10 from sliding along the groove 61.
  • the light guide rod 10 is a solid light guide rod, and the first light propagates in the light guide rod 10 in the manner of total reflection.
  • the movable fixing assembly 789 in this embodiment includes an isolation layer 9, an elastic layer 8 and a rigid layer 7 which are arranged radially outward of the light guide rod 10, wherein the isolation layer 9 It is a light reflection layer.
  • the elastic structure is usually organic transparent silica gel or light-absorbing rubber. If it is directly in contact with a solid light guide rod, the former will reduce the refractive index difference between the light guide rod and the outside world and destroy the total reflection, while the latter will directly reduce the total reflection. The absorption of light reaching the side of the light guide rod is not conducive to light propagation. Therefore, in the present invention, a reflective isolation layer 9 separates the elastic layer 8 from the light guide rod 10, which not only utilizes the force generated by the elastic deformation of the elastic layer 8, but also ensures that the light guide rod 10 does not pass from the side. leakage.
  • the isolation layer 9 may be a steel sheet, aluminum sheet, metal paper or metal film layer; the elastic layer 8 may be silica gel, rubber or plastic.
  • the function of the rigid layer 7 is to squeeze the elastic layer 8 to increase the force-receiving area, and it can be any suitable shape.
  • FIG. 4 is a schematic diagram of a partial structure of the light source device of the present invention.
  • the first positioning member 6 and the base plate 4 are directly fixed in position.
  • the first positioning member 6 includes a positioning post 601
  • the substrate 4 includes a positioning hole 401
  • the positioning post 601 corresponds to the positioning hole 401, so that the first positioning member 6 is fixedly connected to the substrate 4. Since the first positioning member 6 locates the radial coordinates of the light guide rod 10 through the groove, and the substrate 4 locates the position of the light-emitting chip, the light-emitting chip and the light guide rod 10 are in a direction parallel to the light-emitting surface of the light-emitting chip. The location is fixed. In other embodiments of the present invention, the positions of the positioning post and the positioning hole may also be interchanged.
  • the first positioning member includes a positioning hole and the substrate includes a positioning post, and the two correspond to each other.
  • first fixing member and the substrate may also be indirectly fixed in position through an adapter fixing member, the purpose of which is to fix the position of the light guide rod and the light emitting chip along the radial direction of the light guide rod.
  • a through hole is further provided on the first positioning member, so that the light guide rod 10 passes through the through hole.
  • the static friction force generated by squeezing the light guide rod 10 through the movable fixing assembly and the groove of the first positioning member restricts the axial movement of the light guide rod 10 to a certain extent. Further, the present invention further limits the axial direction of the light guide rod through the following technical solutions.
  • FIG. 5 is a schematic diagram of another partial structure of the light source device of the present invention
  • FIG. 6 is a schematic diagram of another structure of the light source device of the present invention.
  • the substrate 4 is also provided with a protection pad 12 (as shown in FIG. 5, there are two protection pads), which is arranged around the light emitting chip 13 (as shown in FIG. 5, there are 4 light emitting chips).
  • the height of the protective pad 12 relative to the substrate 4 is greater than the height of the light-emitting chip 13 relative to the substrate 4, and the light incident end surface of the light guide rod 10 is in contact with the protective pad 12, so as to avoid direct contact between the light guide rod 10 and the light-emitting chip 13 At the same time, it provides a solution to reduce the distance between the light guide rod and the light emitting chip as much as possible. On the one hand, it avoids the structural stability problems caused by the direct thermal contact between the light guide rod and the light guide rod and the mismatch of the thermal expansion coefficient, and on the other hand, it improves the light emission. The coupling efficiency of the light emitted from the chip into the light guide rod.
  • the protection pad 12 is a ceramic pad. Specifically, it may be an alumina ceramic spacer.
  • the protective pad 12 can be formed integrally with the substrate 4, and more generally, the protective pad 12 is adhered to the substrate 4 in a later stage.
  • the protective pad 12 is connected to the light guide rod 10 by glue, and is not only used to prevent the light guide rod 10 from contacting the light emitting surface of the light emitting chip 13, but can use glue to provide the axial tension of the light guide rod 10, thereby improving the structure reliability.
  • the glue in the present invention can be selected to have a viscosity between 4000 and 10000 to ensure the bonding performance.
  • the curing temperature of the glue of the present invention is preferably 60°C to 100°C, which roughly corresponds to the working temperature of the light-emitting chip, so that the light-emitting chip can be used to directly cure the glue, eliminating the need for the light source device to be placed in the incubator during the manufacturing process
  • the internal curing step saves production cost and time cost.
  • the long side of the cross-section of the protective pad in the present invention is close to the light-emitting chip, thereby avoiding too many protective pads.
  • the ground occupies the light-emitting area of the light-emitting chip and obtains a larger bonding area.
  • the protection pad 12 supports the light guide rod 10 and adjusts the relative height of the protection pad 12 and the light-emitting chip 13 to reduce the distance from the light-emitting surface of the light-emitting chip 13 to the light incident end surface of the light guide rod 10 as much as possible.
  • no other optical device such as a collecting lens
  • the air gap is preferably not greater than 0.05 mm.
  • the beam spot will be enlarged while collimating the light beam, or the radial size of the light guide rod will have to be increased. It is conducive to the simulation of the final light pattern, or the edge light of the spot cannot enter the light guide rod.
  • the heat dissipation assembly of the light source device of the present invention includes a heat sink 2 and a fan 3.
  • the heat dissipation assembly is arranged on the back of the base plate 4, the heat sink 2 includes a plurality of heat dissipation fins arranged annularly, and the fan 3 is arranged At the center of the radiating fin, it is surrounded by the radiating fin, and the airflow is blown out in the radial direction for heat dissipation.
  • the heat dissipation component has a compact structure, a small volume, and a very large heat dissipation area.
  • the chuck 11 in FIG. 1 is an installation accessory of the light source device.
  • the present invention also protects a lamp, including the light source device in each of the above embodiments, and further including a chuck.
  • the chuck is assembled and connected with the lamp housing, and the light source device and the chuck are assembled and connected through the first positioning member, so that the light source device of the present invention can be adapted to different application scenarios through the chuck. It only needs to be customized to change the structure of the chuck, so that the light source device has the capability of large-scale and modular production.

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Abstract

一种光源装置，包括：发光芯片（13），设置于基板（4）上，用于发出第一光；导光棒（10），包括第一导光部（101）和第二导光部（102），第一导光部（101）包括光入射端面（1011），第一光经光入射端面（1011）进入导光棒（10），并经第一导光部（101）传导至第二导光部（102），第二导光部（102）包括光出射面（1022），用于出射光；第一定位件（6），包括一凹槽（61），用于容纳导光棒（10），第一定位件（6）与基板（4）直接地或间接地位置固定；活动固定组件（7，8，9），与第一定位件（6）的凹槽（61）沿导光棒（10）的径向固定导光棒（10），活动固定组件（7，8，9）在固定导光棒（10）时产生形变。该技术方案的光源装置具有更优异的结构稳定性和安装精度。

Description

一种光源装置及灯具 技术领域
本发明涉及照明技术领域，特别是涉及一种光源装置。
背景技术
车辆上的灯具是影响车辆行驶安全的重要因素，汽车工业的发展对车辆灯具提出了越来越高的要求。自LED灯开始大规模替代卤素灯进入前装市场，卤素灯丝灯泡的市场逐渐萎缩，这种新老技术交替带来了存量市场零部件供应的问题。一般地，汽车作为耐用品通常具有超过10年的寿命，而卤素灯丝灯泡通常在使用3-5年后就会出现亮度衰减，影响夜间行驶的安全。前装市场的LED车灯与卤素灯的光学架构差异很大，无法直接将LED发光芯片替换到卤素灯丝的位置，为此，市场上出现了一种LED灯泡，模仿卤素灯泡的结构，将LED芯片设置在卤素灯泡灯丝的发光点位置，模拟卤素灯泡的发光。然而，这种LED灯泡的发光角度受到LED芯片所在的背板的影响，无法完美模拟出卤素灯泡的光型，而且存在严重的散热问题，无法实现足够高的亮度。
因此，进一步地，研究人员正在研究一种将LED与导光棒结合的光源结构，从而实现模拟卤素灯丝的光型。具体地，将LED芯片设置在灯泡底部，通过导光棒将LED芯片发出的光引导至导光棒的出光部出射。这种技术方案将提供光的光源与光整形的光导相分离，不像卤素灯丝灯泡或市面上的LED灯泡的一体结构，因此存在LED芯片与导光棒结合的光学问题、热学问题和结构稳定性问题。尤其是在汽车照明应用领域，一方面灯泡处于震动的环境中，这种光源导光棒分离的结构的稳定性较差，另一方面汽车照明对光型分布的要求非常高，导光棒的位置发生变动将导致汽车照明光分布的巨大影响。因此，亟需一种稳定的灯泡架构。
发明内容
针对上述现有技术的新型LED导光棒灯泡的结构稳定性问题，本发明要求保护一种光源装置，包括：发光芯片，设置于基板上，用于发出第一光；导光棒，包括第一导光部和第二导光部，所述第一导光部包括光入射端面，所述第一光经所述光入射端面进入所述导光棒，并经所述第一导光部传导至所述第二导光部，所述第二导光部包括光出射面，用于出射光；第一定位件，包括一凹槽，用于容纳所述导光棒，所述第一定位件与所述基板直接地或间接地位置固定；活动固定组件，与所述第一定位件的凹槽沿所述导光棒的径向固定所述导光棒，所述活动固定组件在固定所述导光棒时产生形变。
与现有技术相比，本发明包括如下有益效果：一方面利用第一定位件与发光芯片的基板相互固定，一方面利用第一定位件的凹槽容纳限制导光棒的位置，使得发光芯片与导光棒在导光棒的径向维度上相对固定，同时通过挤压活动固定组件使其产生形变，将导光棒固定在第一定位件的凹槽内，避免了导光棒沿轴向的滑动，最终实现了结构稳定的光源装置。
在一个实施方式中，所述导光棒为实心导光棒，所述活动固定组件包括沿所述导光棒的径向向外依次设置的隔离层、弹性层和刚性层，所述隔离层为光反射层。该技术方案避免了弹性层直接与导光棒接触，而是采用光反射层的隔离层与导光棒接触，使得到达导光棒侧面的光不会因全反射条件被破坏而泄漏出去，同时，通过刚性层对弹性层进行挤压，能够确保弹性层的受力和形变均匀，避免导光棒侧移。
在一个实施方式中，所述隔离层包括钢片、铝片、金属纸或金属膜层。
在一个实施方式中，所述弹性层包括硅胶、橡胶或塑胶。
在一个实施方式中，所述第一定位件与所述基板分别包括相对应的定位柱与定位孔，所述第一定位件与所述基板通过所述定位柱与定位孔固定连接，以使所述发光芯片与所述导光棒在沿平行于所述发光芯片的发光面的方向上位置固定。
在一个实施方式中，还包括设置于所述基板上的保护垫块，所述保护垫块设置于所述发光芯片的周围，所述保护垫块相对于所述基板的高 度大于所述发光芯片相对于所述基板的高度，所述导光棒的光入射端面与所述保护垫块接触。该技术方案在避免导光棒与发光芯片直接接触的同时，提供了尽可能缩小导光棒与发光芯片距离的解决方案，一方面避免了发光芯片与导光棒直接的热接触及热膨胀系数不匹配导致的结构稳定性问题，另一方面提高了发光芯片的出射光进入导光棒的耦合效率。
在一个实施方式中，所述导光棒与所述保护垫块通过胶水连接。该技术方案使得导光棒在轴向受到胶水的拉力，进一步提高了导光棒的轴向位置稳定性。
在一个实施方式中，所述胶水的固化温度为60℃～100℃。该胶水选择使得可以直接利用发光芯片的点亮对胶水进行固化，简化了光源装置的生产工艺流程，无需额外的加热固化装置，节约了成本。
在一个实施方式中，所述保护垫块为陶瓷垫块。陶瓷垫块与发光芯片所在的基板及与导光棒具有更相似的热膨胀系数、机械性能，具有更好的相容性，而且陶瓷垫块易于加工，容易磨平。
在一个实施方式中，所述保护垫块的横截面的长边靠近所述发光芯片。该技术方案能够尽可能增大导光棒与保护垫块的接触面积，当使用胶水粘接时，具有更大的粘接面积，从而提高结合稳定性。当保护垫块的横截面为长方形时，长边为长方形的长；当保护垫块为不规则形状时，长边为保护垫块的最小外接长方形的长边方向。
在一个实施方式中，所述发光芯片与所述光入射端面之间只有空气间隙，所述空气间隙不大于0.05mm。发光芯片与光入射端面之间不设置收集透镜，避免减小发散角时光斑扩大，通过尽可能缩小发光芯片与光入射端面的距离提高发光芯片的光的收集效率。
在一个实施方式中，所述第一定位件还包括一通孔，所述导光棒穿过所述通孔。
在一个实施方式中，还包括设置于所述基板背面的散热组件，所述散热组件包括风扇及环绕所述风扇布置的多个散热翅片。
本发明还要求保护一种灯具，包括上述任一项所述的光源装置，还包括卡盘，所述卡盘用于与所述灯具壳体装配连接，所述光源装置与所述卡盘通过所述第一定位件装配连接。该技术方案提高了灯具的安装灵 活度，可以将光源装置作为独立的模块，经卡盘安装到任意合适的灯具内，有利于节约成本和大规模生产。
附图说明
图1为本发明的光源装置的结构爆炸图；
图2为本发明的光源装置的导光棒的结构示意图；
图3为本发明的光源装置的导光棒的径向固定结构示意图；
图4为本发明的光源装置的一局部结构示意图；
图5为本发明的光源装置的又一局部结构示意图；
图6为本发明的光源装置的又一结构示意图；
图7为本发明的光源装置的散热组件示意图；
具体实施方式
下面结合附图和实施方式对本发明实施例进行详细说明。
请参见图1，为本发明的光源装置的结构爆炸图，主要包括压线板1，散热器2，风扇3，基板4(发光芯片设置于基板4上，该角度被挡住，保护垫块12设置于基板4上)，密封垫5，第一定位件6，活动固定组件(包括刚性层7、弹性层8和隔离层9)，导光棒10，卡盘11。
从光路角度，基板4上的发光芯片发出第一光，该第一光进入导光棒10，而后经由导光棒10的光出射面出射，形成照明光分布。
从结构角度，基板4通过连接紧固元件安装在散热器2的正面，风扇3安装在散热器2的背面，且位于散热器的散热翅片围成的环形空间内部。保护垫块12粘接在基板4上，导光棒10、活动固定组件安装在第一定位件6上。密封垫5安装在散热器2与第一定位件6之间起密封作用。卡盘11与第一定位件6相连，用于与灯具外部结构连接。
下面对各个模块进行具体说明。
<发光芯片>
发光芯片设置于基板4上，用于发出第一光。发光芯片可以为发光 二极管LED，也可以为激光二极管LD。发光芯片提供了光源装置的原始照明光，同时也是光源装置的第一热源。因此，既要考虑发光芯片的出射光耦合效率问题，也要考虑发光芯片的散热问题。
<导光棒10>
请参见图2，为本发明的光源装置的导光棒的结构示意图。导光棒10包括第一导光部101和第二导光部102(如图以虚线隔开)，其中，第一导光部101和第二导光部102既可以是物理上分离的两个导光结构(可通过粘接剂粘接在一起)，也可以是一个导光棒上根据功能不同人为划分的两个区域。本质上，第一导光部101与第二导光部102承担的功能不同，第一导光部101负责将入射光传导至第二导光部102，第二导光部102负责将光引导出射。
具体地，第一导光部101包括光入射端面1011，第一光经光入射端面1011进入导光棒10，不断反射后到达第二导光部102，第二导光部102具有截面积沿光轴方向不断减小的特征，构成了相对于导光棒10的光轴倾斜的侧面，即光出射面1022，使得光能够从该侧面出射。
本发明中，优选地导光棒为实心导光棒，光通过全内反射的方式在导光棒内传导。该实心导光棒可以为玻璃棒、石英棒、陶瓷棒等材料结构，具有较高的折射率，以保证光在内部全反射。
在本实施例中，发光芯片发出白光，第二导光部102的倾斜的光出射面1022设有漫反射结构，使得白光经该侧面出射。在本发明的其他实施方式中，发光芯片也可以发射其他颜色的光，例如在一个具体实施方式中，发光芯片为蓝光LD，第二导光部的光出射面设有黄光荧光材料，用于吸收部分蓝光并发射黄光，使得未被吸收的蓝光与发射的黄光混合为白光出射光。
<导光棒的径向固定>
本发明的发光芯片+导光棒的光学架构要做到对灯丝的模拟，需要发光点(即光出射面)与灯丝灯的发光点尺寸相似，那么要求导光棒的径向尺寸尽可能小。同时减小导光棒10的径向尺寸也有利于增加光反射次数而改善光束均匀性。然而，当导光棒10的尺寸减小时，导光棒10与发光芯片的中心对准精度变得尤为重要，否则将造成部分发光芯片 的出射光无法被收集。
请结合图1和图3，图3为本发明的光源装置的导光棒的径向固定结构示意图，该示意图为垂直于导光棒10的光轴的横截面图。第一定位件6包括一凹槽61，用于容纳导光棒10，活动固定组件789对导光棒10进行挤压，与凹槽61一同沿径向固定导光棒10。活动固定组件789相对于第一定位件6是可活动拆卸的，其在固定导光棒时产生形变，以产生对导光棒10的径向作用力，为导光棒10进一步提供了轴向摩擦力，从而避免导光棒10沿凹槽61滑动。
在本实施例中，导光棒10为实心导光棒，第一光在导光棒10内以全反射的方式传播，为保证全反射条件不被破坏，要避免第一光从导光棒10的侧面泄漏。为确保尽可能少的光从侧面泄漏，本实施例中的活动固定组件789包括沿导光棒10的径向向外依次设置的隔离层9、弹性层8和刚性层7，其中隔离层9为光反射层。
一般地，弹性结构通常为有机的透明硅胶或吸光的橡胶等，如果直接与实心导光棒接触，那么前者会减小导光棒与外界的折射率差而破坏全反射，后者则直接将到达导光棒侧面的光吸收，不利于光的传播。因此，本发明通过一个反光的隔离层9将弹性层8与导光棒10隔开，既利用了弹性层8的弹性形变产生的作用力，又确保了导光棒10的光不会从侧面泄漏。具体地，隔离层9可以为钢片、铝片、金属纸或金属膜层；弹性层8可以为硅胶、橡胶或塑胶。
刚性层7的作用为对弹性层8进行挤压，增加受力面积，可以为任意合适的形状。
请参见图4，为本发明的光源装置的一局部结构示意图。第一定位件6与基板4直接地位置固定。具体地，第一定位件6包括定位柱601，基板4包括定位孔401，定位柱601与定位孔401相对应，使得第一定位件6与基板4固定连接。由于第一定位件6通过凹槽定位了导光棒10的径向坐标，而基板4定位了发光芯片的位置，使得发光芯片与导光棒10在沿平行于发光芯片的发光面的方向上位置固定。在本发明的其他实施方式实施方式中，也可以将定位柱与定位孔的位置互换，例如第一定位件上包括定位孔，而基板上包括定位柱，两者相互对应。
可以理解，第一固定件与基板也可以通过一转接固定件间接地位置固定，其目的都是为了使得导光棒与发光芯片沿导光棒的径向方向位置固定。
为了进一步限制导光棒10的径向运动，本发明的一个实施方式中进一步在第一定位件上设置了一通孔，使得导光棒10穿过该通孔。
<导光棒的轴向固定>
以上，通过活动固定组件与第一定位件的凹槽对导光棒10进行挤压从而产生的静摩擦力在一定程度上限制了导光棒10的轴向运动。进一步的，本发明通过如下技术方案对导光棒的轴向进一步限定。
请参见图5和图6，图5为本发明的光源装置的又一局部结构示意图，图6为本发明的光源装置的又一结构示意图。基板4上还设置有保护垫块12(如图5有2个保护垫块)，设置于发光芯片13(如图5有4个发光芯片)的周围。保护垫块12相对于基板4的高度大于发光芯片13相对于基板4的高度，导光棒10的光入射端面与保护垫块12接触，使得在避免导光棒10与发光芯片13直接接触的同时，提供了尽可能缩小导光棒与发光芯片距离的解决方案，一方面避免了发光芯片与导光棒直接的热接触及热膨胀系数不匹配导致的结构稳定性问题，另一方面提高了发光芯片的出射光进入导光棒的耦合效率。
本实施例中，保护垫块12为陶瓷垫块。具体地，可以为氧化铝陶瓷垫块。该保护垫块12可以与基板4一体构成，更普遍地，保护垫块12为后期粘接在基板4上。
保护垫块12通过胶水与导光棒10连接，并非仅仅用于阻止导光棒10抵接至发光芯片13的发光面，而是可以利用胶水提供导光棒10轴向的拉力，从而提高结构可靠性。
本发明中的胶水可选择粘度4000～10000之间的，以确保粘接性能。本发明的胶水的固化温度优选为60℃～100℃，该温度大致对应发光芯片的工作温度，使得可以利用发光芯片的发光直接进行胶水固化，省略了加工制造过程中将光源装置放入恒温箱内固化的步骤，节省了生产成本和时间成本。
本实施例中，保护垫块12有两块，可以理解，在其他实施方式中， 也可以有更多的数量，如四块等。但是，为了采用更小径向尺寸的导光棒，要尽量减小保护垫块12与导光棒的重叠面积，只要能够满足支撑作用即可。因此，只用两块保护垫块是更为高效的技术方案选择。进一步地，为了在采用较少的保护垫块的同时提高保护垫块与导光棒的结合性，本发明中的保护垫块的横截面的长边靠近发光芯片，从而避免保护垫块过多地挤占发光芯片的发光面积，并获得更大的粘接面积。当保护垫块为不规则形状时，长边为保护垫块的最小外接长方形的长边方向。
通过保护垫块12对导光棒10的支撑，调节保护垫块12与发光芯片13的相对高度，可尽可能地减小发光芯片13的出光面到导光棒10的光入射端面的距离。本发明实施例中，发光芯片13与导光棒10之间不包含其他光学器件(如收集透镜)，只有空气间隙，该空气间隙优选地不大于0.05mm。该技术方案可以在不必将光准直的情况下获得高效的光收集效率，减小光的侧向损失。相反地，如果在发光芯片与导光棒之间增加收集透镜，根据光学扩展量守恒，在准直光束的同时将导致光斑扩大，要么使得导光棒的径向尺寸不得不增大，从而不利于最终光型的模拟，要么使得光斑的边缘光无法进入导光棒。
请参照图1与图7，本发明的光源装置的散热组件包括散热器2和风扇3，该散热组件设置于基板4的背面，散热器2包括环形设置的多个散热翅片，风扇3设置于散热翅片中心，被散热翅片环绕，沿径向吹出气流进行散热。该散热组件结构紧凑、体积小，散热面积非常大。
请继续参照图1，图1中的卡盘11为光源装置的安装附件。本发明还保护一种灯具，包括上述各实施方式中的光源装置，还包括卡盘。其中，卡盘与灯具壳体装配连接，光源装置与卡盘通过第一定位件装配连接，从而使得本发明的光源装置能够通过卡盘适配到不同的应用场景中。只需要定制化改变卡盘的结构即可实现，从而使得该光源装置具备大规模、模块化生产的能力。
本说明书中各个实施例采用递进的方式描述，每个实施例重点说明的都是与其他实施例的不同之处，各个实施例之间相同相似部分互相参见即可。
以上所述仅为本发明的实施方式，并非因此限制本发明的专利范围， 凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (14)

  1. 一种光源装置，包括：
    发光芯片，设置于基板上，用于发出第一光；
    导光棒，包括第一导光部和第二导光部，所述第一导光部包括光入射端面，所述第一光经所述光入射端面进入所述导光棒，并经所述第一导光部传导至所述第二导光部，所述第二导光部包括光出射面，用于出射光；
    第一定位件，包括一凹槽，用于容纳所述导光棒，所述第一定位件与所述基板直接地或间接地位置固定；
    活动固定组件，与所述第一定位件的凹槽沿所述导光棒的径向固定所述导光棒，所述活动固定组件在固定所述导光棒时产生形变。
  2. 根据权利要求1所述的光源装置，其特征在于，所述导光棒为实心导光棒，所述活动固定组件包括沿所述导光棒的径向向外依次设置的隔离层、弹性层和刚性层，所述隔离层为光反射层。
  3. 根据权利要求2所述的光源装置，其特征在于，所述隔离层包括钢片、铝片、金属纸或金属膜层。
  4. 根据权利要求2所述的光源装置，其特征在于，所述弹性层包括硅胶、橡胶或塑胶。
  5. 根据权利要求1所述的光源装置，其特征在于，所述第一定位件与所述基板分别包括相对应的定位柱与定位孔，所述第一定位件与所述基板通过所述定位柱与定位孔固定连接，以使所述发光芯片与所述导光棒在沿平行于所述发光芯片的发光面的方向上位置固定。
  6. 根据权利要求1所述的光源装置，其特征在于，还包括设置于所述基板上的保护垫块，所述保护垫块设置于所述发光芯片的周围，所述保护垫块相对于所述基板的高度大于所述发光芯片相对于所述基板的高度，所述导光棒的光入射端面与所述保护垫块接触。
  7. 根据权利要求6所述的光源装置，其特征在于，所述导光棒与所述保护垫块通过胶水连接。
  8. 根据权利要求7所述的光源装置，其特征在于，所述胶水的固化 温度为60℃～100℃。
  9. 根据权利要求6所述的光源装置，其特征在于，所述保护垫块为陶瓷垫块。
  10. 根据权利要求6所述的光源装置，其特征在于，所述保护垫块的横截面的长边靠近所述发光芯片。
  11. 根据权利要求6所述的光源装置，其特征在于，所述发光芯片与所述光入射端面之间只有空气间隙，所述空气间隙不大于0.05mm。
  12. 根据权利要求1所述的光源装置，其特征在于，所述第一定位件还包括一通孔，所述导光棒穿过所述通孔。
  13. 根据权利要求1所述的光源装置，其特征在于，还包括设置于所述基板背面的散热组件，所述散热组件包括风扇及环绕所述风扇布置的多个散热翅片。
  14. 一种灯具，包括如权利要求1-13中任一项所述的光源装置，其特征在于，还包括卡盘，所述卡盘用于与灯具壳体装配连接，所述光源装置与所述卡盘通过所述第一定位件装配连接。
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