CN205991422U - A kind of photoconduction light-distribution LED protection cover structure and its photoconduction luminous intensity distribution automobile lamp - Google Patents

A kind of photoconduction light-distribution LED protection cover structure and its photoconduction luminous intensity distribution automobile lamp Download PDF

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Publication number
CN205991422U
CN205991422U CN201620908115.5U CN201620908115U CN205991422U CN 205991422 U CN205991422 U CN 205991422U CN 201620908115 U CN201620908115 U CN 201620908115U CN 205991422 U CN205991422 U CN 205991422U
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China
Prior art keywords
photoconduction
led
led chip
light
distribution
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CN201620908115.5U
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Chinese (zh)
Inventor
沈海军
康博
严彬华
王磊
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HASCO Vision Technology Co Ltd
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Shanghai Koito Automotive Lamp Co Ltd
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Abstract

A kind of photoconduction light-distribution LED protection cover structure and its photoconduction luminous intensity distribution automobile lamp; it is related to general vehicle illumination or the arrangement of advertiser; more particularly, to a kind of photoconduction light-distribution LED for protecting photoconduction luminous intensity distribution automobile lamp LED chip protects cover structure; and the automobile lamp of cover structure is protected using this photoconduction light-distribution LED; photoconduction luminous intensity distribution automobile lamp includes the photoconduction and the wiring board mounting LED chip for car light luminous intensity distribution, and the LED chip side of assist side configures the LED protective cover around LED chip;The height H of LED protective cover is equal to height h and the Minimal Protective gap d sum of LED chip; the length and width direction of LED protective cover is all higher than LED chip and enters bright finish less than photoconduction, enters, with ensure photoconduction, the semiconductor wafer all touching under bright finish what state in office less than LED chip.The semiconductor wafer that LED chip can be protected is not damaged, it is to avoid because vehicle vibration or photoconduction deformation cause photoconduction and LED chip to collide and ultimately cause the risk that car light is integrally scrapped.

Description

A kind of photoconduction light-distribution LED protection cover structure and its photoconduction luminous intensity distribution automobile lamp
Technical field
This utility model is related to general vehicle illumination or the arrangement of advertiser, and more particularly, to one kind is used for protecting photoconduction to join The photoconduction light-distribution LED protection cover structure of light automobile lamp LED chip, and the vapour protecting cover structure using this photoconduction light-distribution LED Car light has.
Background technology
With the popularization of LED automobile light fixture, photoconduction luminous intensity distribution becomes more and more important in the design of automobile lamp.Chinese utility model A kind of patent " light guide type LED location lamp " (utility model patent number:ZL201520211196.9 Authorization Notice No.: CN204629296U) disclose a kind of light guide type LED location lamp, including LED module, described LED module is provided with LED Grain, described LED module is connected with light guide in the position corresponding with LED particle, and described light guide is arranged on a photoconduction and supports Among bonnet, this light pipe end is provided with installation sheet, and this installation sheet is attached with LED module by mounting pin.China is real With new patent " light inlet carries the automobile Rear Position Lamp photoconduction of coupling device " (utility model patent number: ZL201520674930.5 Authorization Notice No.:CN204879838U after) disclosing the automobile that a kind of light inlet carries coupling device Position lamp photoconduction, photoconduction is arranged on to be had between the interior lampshade of diffusion and reflecting mirror, and the entering light region of photoconduction and LED light Source is relatively;Described photoconduction is provided with projection in the front in entering light region and is located at the local thickening that projection rear portion is used for increasing light diffusion Portion, described projection has, in LED light source entering light side, the introducing cambered surface introducing light, and the end face in photoconduction has introducing light Introducing inclined-plane;Described photoconduction is provided with, in the front of projection, the multiple angular teeth being totally reflected to light on interior lampshade, and multiple Angular teeth constitutes end head-on reflection area, and described photoconduction is provided with for light is totally reflected to reflection in the front of local thickening part Inclined-plane on mirror, and inclined-plane composition end back side echo area.
The assembly relation of the photoconduction assembly, LED radiator assembly and car light main body of existing automobile lamp is as shown in figure 3, light Lead assembly 1 and LED radiator assembly 3 is respectively assembled in car light main body 2.It is subject to processing the restriction with assembly technology, LED chip Frequently not directly it is fixedly connected with photoconduction, but is separately fixed on different car light parts, wherein, photoconduction 11 is fixed on photoconduction On support 12, form photoconduction assembly 1;LED chip 30 welds in assist side 33 and is fixed on radiator 34, forms LED and dissipates Hot device assembly 3.Assemble the LED chip of photoconduction luminous intensity distribution automobile lamp completing with photoconduction matching relationship as depicted in figs. 1 and 2, examine Consider the reasons such as the service efficiency of LED and lighting effect, the gap d 0 between LED chip 30 and photoconduction 11 generally to adjust to In the range of the build-up tolerance of 0.5mm, referring to Fig. 2.Because photoconduction assembly 1 and LED radiator assembly 3 itself have respective design , essentially from the location tolerance between photoconduction 11 and light guide bracket 12, LED radiator is total for tolerance, the wherein tolerance of photoconduction assembly 1 The tolerance becoming 3 mainly includes the location tolerance that LED chip 30 mounts in assist side 33, and wiring board 33 and radiator 34 it Between heat-conducting glue produce location tolerance.It is assembled in car light main body 2 in view of photoconduction assembly 1 and LED radiator assembly 3 and also deposit In rigging error it is ensured that photoconduction 11 is extremely difficult less than 0.5mm with the build-up tolerance of LED chip 30.It is known that LED Chip 30 by substrate 31 and is formed at the semiconductor wafer 32 of substrate surface and forms, and constitutes the material of semiconductor wafer 32 very Fragility, photoconduction 11 easily causes chip 32 fragmentation with the collision of LED chip 30, thus leading to LED chip 30 permanent failure, or even Car light is caused integrally to scrap.Existing photoconduction assembling structure may cause photoconduction 11 to touch due to tolerance build-up in assembling process Wipe the accident of LED chip 30;Especially under some mal-conditions, when such as vehicle is by some bumpy sections, the shake of vehicle There is relative displacement and mutually collide in dynamic also can causing between the photoconduction 11 being separately fixed on different car light parts and LED chip 30 Hit, ultimately cause the risk that car light is integrally scrapped.
Utility model content
The purpose of this utility model is to provide a kind of simple and safe reliable photoconduction light-distribution LED of structure to protect cover structure, Solve the above-mentioned technical problem leading to car light integrally to be scrapped with LED chip collision because of photoconduction.This utility model solves above-mentioned technology Problem be employed technical scheme comprise that:
A kind of photoconduction light-distribution LED protects cover structure, for photoconduction luminous intensity distribution automobile lamp, described photoconduction luminous intensity distribution automobile lamp Including for car light luminous intensity distribution photoconduction and attachment LED chip wiring board it is characterised in that:LED chip in described wiring board Side configures the LED protective cover around LED chip;The height of described LED protective cover is equal between height and the Minimal Protective of LED chip Gap sum, the length and width direction of LED protective cover is all higher than LED chip and enters bright finish, to ensure photoconduction less than photoconduction Enter the semiconductor wafer all touching under bright finish what state in office less than LED chip;Wherein, Minimal Protective gap is entering of photoconduction The minimum spacing allowing between bright finish and the semiconductor wafer surface of LED chip.
Photoconduction light-distribution LED of the present utility model protects one kind preferably technical scheme of cover structure it is characterised in that described Minimal Protective gap be 0.1~0.5mm.
Photoconduction light-distribution LED of the present utility model protects a kind of superior technique scheme of cover structure it is characterised in that described LED protective cover be the rectangle of metal mesh panels bending forming or the flat cylinder of annular;One end of described flat cylinder is around LED Chip welds in the circuit board, and the other end of flat cylinder enters bright finish towards photoconduction.
Photoconduction light-distribution LED of the present utility model protects a kind of improved technical scheme of cover structure it is characterised in that described LED protective cover be the caged guardrail that constitutes of at least 4 columns around LED chip distribution;The root of described column with The radiator of LED chip is connected as a single entity;The end of described column passes through the through hole on wiring board, reaches LED chip Around, form the LED protective cover around LED chip;The height that PCB surface is stretched out in the end of described column is equal to LED guarantor The height of guard shield.
Another purpose of the present utility model is to provide a kind of photoconduction protecting cover structure using above-mentioned photoconduction light-distribution LED Luminous intensity distribution automobile lamp, this utility model solves above-mentioned technical problem and be employed technical scheme comprise that:
A kind of photoconduction luminous intensity distribution automobile lamp protecting cover structure using above-mentioned photoconduction light-distribution LED, described photoconduction luminous intensity distribution vapour Car light tool includes car light main body and is connected to the photoconduction assembly in car light main body and LED radiator assembly;Described photoconduction assembly It is made up of photoconduction and light guide bracket assembling;Described LED radiator assembly is assembled by the wiring board mounting LED chip and radiator Constitute;It is characterized in that described LED radiator assembly comprises photoconduction light-distribution LED protection cover structure, the LED core of described wiring board Piece side configures the LED protective cover around LED chip;In the production assembling of photoconduction luminous intensity distribution automobile lamp and vehicle, road travels process In, described photoconduction light-distribution LED protection cover structure forms protection interval between photoconduction and LED chip it is ensured that the entering light of photoconduction Spacing between face and the semiconductor wafer of LED chip is not less than Minimal Protective gap.
A kind of preferably technical scheme of photoconduction luminous intensity distribution automobile lamp of the present utility model is it is characterised in that described LED Protective cover is the flat cylinder around LED chip welding rectangle in the circuit board or annular.
A kind of superior technique scheme of photoconduction luminous intensity distribution automobile lamp of the present utility model is it is characterised in that described LED Protective cover is the caged guardrail that the column that some and described radiators being distributed around LED chip are connected as a single entity is constituted.
The beneficial effects of the utility model are:
1st, photoconduction light-distribution LED of the present utility model protection cover structure and its photoconduction luminous intensity distribution automobile lamp, by setting around The LED protective cover of LED chip ensures that photoconduction will not touch LED chip, and the semiconductor wafer of LED chip can be protected not touched Wound, it is to avoid because vehicle vibration or photoconduction deformation cause photoconduction and LED chip to collide and ultimately cause what car light was integrally scrapped Risk.
2nd, photoconduction light-distribution LED protection cover structure of the present utility model and its photoconduction luminous intensity distribution automobile lamp, structure is simple, manufactures Low with assembly cost, reliable to the protective effect of LED chip, can reduce occur between photoconduction and LED chip relative displacement and Collide with each other the risk causing car light integrally to scrap, and effectively improves the reliability of photoconduction luminous intensity distribution automobile lamp it is ensured that vehicle travels Safety.
Brief description
Fig. 1 is LED chip and the photoconduction matching relationship schematic diagram of existing photoconduction luminous intensity distribution automobile lamp;
Fig. 2 is the partial enlarged drawing with photoconduction fit clearance for the LED chip of existing photoconduction luminous intensity distribution automobile lamp;
Fig. 3 is the assembling schematic diagram of the photoconduction assembly, LED radiator assembly and car light main body of automobile lamp;
Fig. 4 is the assembly relation schematic diagram that photoconduction light-distribution LED of the present utility model protects cover structure;
Fig. 5 is the front view that photoconduction light-distribution LED of the present utility model protects cover structure;
Fig. 6 is the partial enlarged drawing that photoconduction light-distribution LED of the present utility model protects cover structure;
Fig. 7 is the longitudinal sectional view that photoconduction light-distribution LED of the present utility model protects cover structure;
Fig. 8 is the partial enlarged drawing that LED protective cover welding photoconduction light-distribution LED in the circuit board protects cover structure;
Fig. 9 is the broken section enlarged drawing of LED protective cover and the photoconduction light-distribution LED protection cover structure of radiator one.
The reference of each part of each in figure above:1- photoconduction assembly, 11- photoconduction, 12- light guide bracket, 2- car light master Body, 3-LED heat radiator assembly, 30-LED chip, 31- substrate, 32- semiconductor wafer, 33- wiring board, 34- radiator, 35- passes through Perforation, 4-LED protective cover, 41- column.
Specific embodiment
For better understanding of technique scheme of the present utility model, enter traveling one with reference to the accompanying drawings and examples Step ground describes in detail.
Photoconduction light-distribution LED of the present utility model according to Fig. 4 to Fig. 9 protects the embodiment of cover structure, for photoconduction Luminous intensity distribution automobile lamp, described photoconduction luminous intensity distribution automobile lamp includes car light main body 2 and is connected to the photoconduction assembly in car light main body 2 1 and LED radiator assembly 3;Described photoconduction assembly 1 is made up of photoconduction 11 and light guide bracket 12 assembling;Described LED radiator Assembly 3 is made up of the wiring board 33 of attachment LED chip 30 and radiator 34 assembling of LED chip 30;As shown in Fig. 4 to Fig. 9, The LED chip side configuration of described wiring board 33 is around the LED protective cover 4 of LED chip 30;Height H of described LED protective cover 4 etc. In height h and the Minimal Protective gap d sum of LED chip 30, the length and width of LED protective cover 4 is all higher than LED chip 30 simultaneously And enter bright finish less than photoconduction 11, enter, with ensure photoconduction 11, half all touching under bright finish what state in office less than LED chip 30 Conductor chip 32;Wherein, Minimal Protective gap d be photoconduction 11 enter bright finish and LED chip 30 semiconductor wafer 32 surface it Between allow minimum spacing.During in the assembling of photoconduction luminous intensity distribution automobile lamp and vehicle, road travels, described photoconduction light-distribution LED Protection cover structure forms protection interval between photoconduction 11 and LED chip 30 it is ensured that photoconduction 11 enter bright finish and LED chip 30 The spacing of semiconductor wafer 32 is not less than Minimal Protective gap d, referring to Fig. 8 and Fig. 9.As an example, photoconduction in figs. 8 and 9 11 are reduced to rectangular block, and actual photoconduction can be for arbitrarily meeting the shape of car light light distribution requirements.In figure uses double dot dash line table Show road run duration on photoconduction 11 installation process or vehicle, deviate normal position when being given a shock and touch LED protective cover 4 State.When photoconduction 11 is due to shaking or deforming during LED chip 30, described LED protective cover plays position-limiting action, Photoconduction 11 is directly pushed up on LED protective cover 4, LED chip 30 will not be touched, thus protecting the quasiconductor of LED chip 30 Chip 32 is not damaged
Protect the preferred embodiment of cover structure, described Minimal Protective gap d according to photoconduction light-distribution LED of the present utility model =0.1~0.5mm.
Photoconduction light-distribution LED of the present utility model according to Fig. 5, Fig. 6 and Fig. 8 protects the embodiment of cover structure, described LED protective cover 4 be the rectangle of metal mesh panels bending forming or the flat cylinder of annular;One end cincture of described flat cylinder In LED chip 30 welding assist side 33, the other end enters bright finish towards photoconduction 11.Mesh in metal mesh panels is conducive to The radiating of LED chip 30, represents the LED protective cover 4 that is shaped as the flat cylinder of rectangle in the embodiment shown in fig. 4 with reticulate pattern line Stereochemical structure, in the embodiment of Fig. 5, Fig. 6 and Fig. 8, is represented by dashed line the LED protective cover 4 being shaped as the flat cylinder of rectangle.
Photoconduction light-distribution LED of the present utility model according to Fig. 5, Fig. 6 and Fig. 9 protects the embodiment of cover structure, described LED protective cover 4 be the caged guardrail that constitutes of at least 4 columns 41 around LED chip 30 distribution;Described column 41 Root is connected as a single entity with the radiator 34 of LED chip;The end of described column 41 passes through the through hole 35 on wiring board 33, stretches Go out to LED chip 30 around, form the LED protective cover 4 around LED chip 30;Circuit is stretched out in the end of described column 41 The height on plate 33 surface is equal to the height H of LED protective cover 4, referring to Fig. 9.Rectangular broken line frame in Fig. 5 and Fig. 6 then represents that LED protects The caged guardrail that the rectangular distribution of each column 41 of guard shield 4 is constituted.
Those of ordinary skill in the art is it should be appreciated that above embodiment is intended merely to illustrate that this practicality is new The technical scheme of type, and be not used as being to restriction of the present utility model, any based on connotation of the present utility model to Go up change, the modification that described embodiment is made, all will fall in scope of the claims of the present utility model.

Claims (7)

1. a kind of photoconduction light-distribution LED protects cover structure, for photoconduction luminous intensity distribution automobile lamp, described photoconduction luminous intensity distribution automobile lamp bag Include for car light luminous intensity distribution photoconduction and attachment LED chip wiring board it is characterised in that:LED chip side in described wiring board Configuration is around the LED protective cover of LED chip;The height of described LED protective cover is equal to height and the Minimal Protective gap of LED chip Sum, the length and width direction of LED protective cover is all higher than LED chip and enters bright finish, to ensure photoconduction less than photoconduction Enter the semiconductor wafer all touching under bright finish what state in office less than LED chip;Wherein, Minimal Protective gap is the entering light of photoconduction The minimum spacing allowing between face and the semiconductor wafer surface of LED chip.
2. photoconduction light-distribution LED protection cover structure according to claim 1 is it is characterised in that described Minimal Protective gap is 0.1~0.5mm.
3. photoconduction light-distribution LED protection cover structure according to claim 1 is it is characterised in that described LED protective cover is gold Belong to the rectangle of mesh plate bending forming or the flat cylinder of annular;One end of described flat cylinder is welded on circuit around LED chip On plate, the other end of flat cylinder enters bright finish towards photoconduction.
4. photoconduction light-distribution LED protection cover structure according to claim 1 is it is characterised in that described LED protective cover is ring The caged guardrail constituting around at least 4 columns of LED chip distribution;The root of described column and the radiator of LED chip It is connected as a single entity;The end of described column passes through the through hole on wiring board, reaches around LED chip, is formed around LED The LED protective cover of chip;The height equal to LED protective cover for the height of PCB surface is stretched out in the end of described column.
5. a kind of usage right requires photoconduction light-distribution LED described in 1 to protect the photoconduction luminous intensity distribution automobile lamp of cover structure, including car light master Body and be connected to the photoconduction assembly in car light main body and LED radiator assembly;Described photoconduction assembly is by photoconduction and light guide bracket Assembling is constituted;Described LED radiator assembly is made up of the radiator assembling of the wiring board mounting LED chip and LED chip;Its The LED radiator assembly being characterised by described comprises photoconduction light-distribution LED protection cover structure, and the LED chip side of described wiring board is joined Put the LED protective cover around LED chip;During in the production assembling of photoconduction luminous intensity distribution automobile lamp and vehicle, road travels, institute The photoconduction light-distribution LED stated protect cover structure to form protection interval between photoconduction and LED chip it is ensured that photoconduction enter bright finish and Spacing between the semiconductor wafer of LED chip is not less than Minimal Protective gap.
6. photoconduction luminous intensity distribution automobile lamp according to claim 5 is it is characterised in that described LED protective cover is around LED Chip welding rectangle in the circuit board or the flat cylinder of annular.
7. photoconduction luminous intensity distribution automobile lamp according to claim 5 is it is characterised in that it is characterized in that described LED protective cover It is the caged guardrail that the column that some and described radiators being distributed around LED chip are connected as a single entity is constituted.
CN201620908115.5U 2016-08-19 2016-08-19 A kind of photoconduction light-distribution LED protection cover structure and its photoconduction luminous intensity distribution automobile lamp Active CN205991422U (en)

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CN201620908115.5U CN205991422U (en) 2016-08-19 2016-08-19 A kind of photoconduction light-distribution LED protection cover structure and its photoconduction luminous intensity distribution automobile lamp

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Application Number Priority Date Filing Date Title
CN201620908115.5U CN205991422U (en) 2016-08-19 2016-08-19 A kind of photoconduction light-distribution LED protection cover structure and its photoconduction luminous intensity distribution automobile lamp

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106122871A (en) * 2016-08-19 2016-11-16 上海小糸车灯有限公司 A kind of photoconduction light-distribution LED protective cover structure and photoconduction luminous intensity distribution automobile lamp thereof
CN107631265A (en) * 2017-10-10 2018-01-26 徐德杰 A kind of LED car lamp

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106122871A (en) * 2016-08-19 2016-11-16 上海小糸车灯有限公司 A kind of photoconduction light-distribution LED protective cover structure and photoconduction luminous intensity distribution automobile lamp thereof
CN107631265A (en) * 2017-10-10 2018-01-26 徐德杰 A kind of LED car lamp

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GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 201800 Yecheng Road, Jiading District, Jiading District, Shanghai

Patentee after: Hua Yu vision technology (Shanghai) Co., Ltd.

Address before: 201800 Yecheng Road, Jiading District, Jiading District, Shanghai

Patentee before: Xiaoxi Car Lights Co., Ltd., Shanghai

CP01 Change in the name or title of a patent holder