CN108105715B - Light guide head mounting structure for preventing light guides from mutually crossing light - Google Patents
Light guide head mounting structure for preventing light guides from mutually crossing light Download PDFInfo
- Publication number
- CN108105715B CN108105715B CN201810047002.4A CN201810047002A CN108105715B CN 108105715 B CN108105715 B CN 108105715B CN 201810047002 A CN201810047002 A CN 201810047002A CN 108105715 B CN108105715 B CN 108105715B
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- Prior art keywords
- light guide
- light
- guide mounting
- mounting bracket
- circuit board
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Classifications
-
- 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]
Landscapes
- Optical Couplings Of Light Guides (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention provides a light guide head mounting structure for preventing light guides from mutually stringing, which comprises a radiator, an LED circuit board assembly, a first light guide mounting bracket and a second light guide mounting bracket; the LED circuit board assembly comprises two first light sources and a second light source; the LED circuit board assembly, the first light guide mounting bracket and the second light guide mounting bracket are fixed on the radiator in a sequentially laminated mode; the first light guide mounting bracket is provided with two first light guide mounting parts, and the positions of the first light guide mounting parts correspond to the two first light sources respectively; the second light guide mounting bracket is provided with a second light guide mounting part, and the position of the second light guide mounting part corresponds to the second light source; the first light guide mounting bracket is hollowed out at a position corresponding to the second light source. The light guide head mounting structure for preventing the light guides from mutually stringing can prevent the light guides from influencing the lighting appearance due to mutual stringing of different light colors, and has the advantages of good assembly process performance and small occupied space.
Description
Technical Field
The invention relates to the field of automobile lamps, in particular to a light guide head mounting structure for preventing light guides from mutually stringing.
Background
With the continuous development and popularization of LED technology and light guide technology, the light emitting form using LEDs as light sources and light guides as light guide media is increasingly applied to the functions of daytime running lights, position lights, turn lights, brake lights and other position lights. Light guides are also highly favored by customers and stylists for their great ease of shaping the light pattern of the linear features. Thus, the number of light guides within a single lamp is also increasing, from the first one to the next two and then to the current three. However, when three light guides and two light colors exist in one lamp, the light guides are transparent, and the space of the LED circuit board assembly is generally small, so that new challenges are presented to the design of the lamp for realizing good matching, good positioning and assembly process of the light guide heads and the LED circuit board assembly and preventing the light of different light colors from mutually crossing each other to influence the lighting appearance.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the light guide head mounting structure for preventing the light guides from mutually stringing, which can prevent the three light guides from mutually stringing light of different light colors to influence the lighting appearance, and has the advantages of good matching, positioning and assembling process performances and small occupied space.
In order to achieve the above-mentioned object, the present invention provides a light guide head mounting structure for preventing light guides from mutually crossing light, comprising a heat sink, an LED circuit board assembly, a first light guide mounting bracket and a second light guide mounting bracket; the LED circuit board assembly comprises two first light sources and a second light source; the LED circuit board assembly, the first light guide mounting bracket and the second light guide mounting bracket are fixed on the radiator in a sequentially laminated manner; the first light guide mounting bracket is provided with two first light guide mounting parts, and the positions of the first light guide mounting parts correspond to the two first light sources respectively; the second light guide mounting bracket is provided with a second light guide mounting part, and the position of the second light guide mounting part corresponds to the second light source; the first light guide mounting bracket is hollowed out at a position corresponding to the second light source.
Preferably, the light guide further comprises two first light guides and a second light guide; the first light guide mounting part and the first light guide form a first buckling structure matched with each other, and the first light guide is fixed in the first light guide mounting part through the first buckling structure; the second light guide mounting part and the second light guide form a second buckling structure matched with each other, and the second light guide is fixed in the second light guide mounting part through the second buckling structure.
Preferably, the first light guide mounting bracket and the second light guide mounting bracket extend towards the direction of the LED circuit board assembly to form a first flange in an matched mode, the end face of the first flange is a fixed distance away from the LED circuit board assembly, and the projection of the first flange towards the direction of the LED circuit board assembly is enclosed around the periphery of each of the first light source and the second light source.
Preferably, the radiator extends to the first light guide mounting bracket and the second light guide mounting bracket to form a second flanging, the second flanging is formed at the periphery of the first flanging, and the height of the second flanging is larger than the fixed distance.
Preferably, the three light guide sheaths are further included, the light guide sheaths comprise a sleeve head and a sleeve pipe, the light guide sheaths are respectively sleeved outside the first light guide and the second light guide through the sleeve pipe, and the sleeve head of the light guide sheaths is covered outside the corresponding first light guide installation part or second light guide installation part.
Preferably, the first light guide mounting portion, the second light guide mounting portion and the light guide sheath are formed with an error-proofing structure.
Preferably, two first top ribs are formed on the outer side of one first light guide installation part at intervals, and a first opening matched with the first top ribs is formed on the sleeve head of one light guide sheath corresponding to the first light guide installation part; a second top rib is formed on the outer side of the second light guide installation part, and a second opening matched with the second top rib is formed on the sleeve head of the light guide sheath corresponding to the second light guide installation part; the first top rib, the first opening, the second top rib and the second opening form the error-proof structure.
Preferably, the first top rib and the second top rib are 10mm in height and 1mm in width; the height of the first opening is 4.5mm, and the width of the first opening is 7mm; the second opening is 4.5mm in height and 2mm in width.
Preferably, an assembly identifier is formed on the outside of the ferrule of the light guide sheath.
Preferably, the LED circuit board assembly, the first light guide mounting bracket, the second light guide mounting bracket, and the light guide sheath are black.
The invention adopts the technical proposal, which has the following beneficial effects:
the three light guides can be prevented from influencing the lighting appearance due to mutual light stringing of different light colors, the three light guides have good matching, good positioning and assembly process performance, the occupied space of the whole installation structure is small, the space can be saved, and larger freedom degree is provided for modeling design. The first light guide mounting bracket and the second light guide mounting bracket are adopted, and particularly when black, light rays can be prevented from penetrating through the light guide mounting bracket from the front surface, so that light rays can be prevented from being strung and light leakage can be avoided. When the LED circuit board assembly is black, the reflectivity of the circuit board can be reduced, so that light rays which are strung out due to the reflection of the circuit board are weakened. The light guide sheath shields the exposed light guide buckle structure on the light guide mounting bracket and the section of light guide from the light source to the light guide bracket, so that light leakage and light string caused by light emitted from the light guide are avoided, and the light guide is protected. The adoption of the error-proof structure enables the installation of the installation structure to be more convenient and clear, prevents misoperation, improves the installation efficiency and prevents the possible damage to the light guide due to the incorrect installation.
Drawings
FIG. 1 is a schematic view of a structure of a light guide head mounting structure for preventing light guides from mutually crossing light according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a sectional view B-B of FIG. 1;
FIG. 4 is a cross-sectional view of C-C of FIG. 1;
FIG. 5 is a sectional view of D-D of FIG. 1;
FIG. 6 is a schematic structural view of a first light guide mounting bracket according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a second light guide mounting bracket according to an embodiment of the present invention;
FIG. 8 is a schematic view of the structure of a first side of a light guide sheath according to an embodiment of the invention;
fig. 9 is a schematic view of the structure of the second side of the light guiding jacket according to the embodiment of the present invention.
Detailed Description
The following description of the preferred embodiments of the present invention will be given with reference to fig. 1 to 9, so that the functions and features of the present invention can be better understood.
Referring to fig. 1 to 5, a light guide head mounting structure for preventing light guides from mutually crossing light in accordance with the present invention includes a heat sink 1, an LED circuit board assembly 2, a first light guide mounting bracket 3, a second light guide mounting bracket 4, two first light guides 5 and a second light guide 6; the LED circuit board assembly 2 comprises two first light sources 21 and a second light source 22; the LED circuit board assembly 2, the first light guide mounting bracket 3 and the second light guide mounting bracket 4 are fixed on the radiator 1 in a laminated mode in sequence; the first light guide mounting bracket 3 is formed with two first light guide mounting portions 31, and the positions of the first light guide mounting portions 31 correspond to the two first light sources 21, respectively; the second light guide mounting bracket 4 is formed with a second light guide mounting portion 41, and the position of the second light guide mounting portion 41 corresponds to the second light source 22; the first light guide mounting bracket 3 is hollowed out at a position corresponding to the second light source 22. The first light source 21 and the second light source 22 may employ LED light sources of different colors, for example, the first light source 21 employs a white LED light source, which is used as a light source of daytime running lights and front position lights; the second light source 22 employs a yellow LED light source as a light source of the front turn light. The heat sink 1 is made of metal, preferably LD12 aluminum alloy.
The LED circuit board assembly 2 is fixedly connected with the radiator 1 through a screw or cold riveting structure. The LED circuit board assembly 2 adopts a circuit board with a black front surface, and reduces the reflectivity of the circuit board, so that light rays which are strung out due to the reflection of the circuit board are weakened.
The first light guide mounting part 31 and the first light guide 5 form a first buckling structure matched with each other, and the first light guide 5 is fixed in the first light guide mounting part 31 through the first buckling structure; the second light guide mounting portion 41 and the second light guide 6 form a second fastening structure that cooperates with each other, and the second light guide 6 is fixed in the second light guide mounting portion 41 by the second fastening structure.
One end of the first light guide mounting bracket 3 is matched with the first light guide 5 in a buckling connection mode, and the other end of the first light guide mounting bracket is matched with the radiator 1 in a screw connection mode.
The two screw posts of the second light guide mounting bracket 4 pass through the two through holes 33 on the right side of the first light guide mounting bracket 3 and then press the upper surface of the first light guide mounting bracket 3 against the lower surface of the second light guide mounting bracket 4 in such a manner as to fix the first light guide mounting bracket 3.
The first light guide mounting bracket 3 and the second light guide mounting bracket 4 are made of black opaque PC material, so that light rays are prevented from penetrating through the light guide mounting brackets from the front side, and light strings and light leakage are formed.
The first light guide mounting bracket 3 and the second light guide mounting bracket 4 extend towards the LED circuit board assembly 2 to be matched to form a first flanging 7, light leakage from the side surface is reduced to the greatest extent, light leakage and light stringing are avoided, the end face of the first flanging 7 is a fixed distance away from the LED circuit board assembly 2, and projection of the first flanging 7 towards the LED circuit board assembly 2 is sealed and surrounds the periphery of each first light source 21 and each second light source 22. In this embodiment, the fixed distance is 1mm.
The radiator 1 extends to the first light guide mounting bracket 3 and the second light guide mounting bracket 4 to form a second flanging 11, the second flanging 11 is formed on the periphery of the first flanging 7, and the height of the second flanging 11 is larger than the fixed distance.
The second flange 11 and the first flange 7 cooperate to form a labyrinth structure for shielding light leaking from a 1mm gap between the light guide mounting bracket and the LED circuit board assembly 2.
Referring to fig. 3, 4, 8 and 9, the optical fiber protecting sleeve 9 further includes three optical fiber protecting sleeves 9, the optical fiber protecting sleeve 9 includes a sleeve 91 and a sleeve 92, the optical fiber protecting sleeve 9 is respectively sleeved outside the first optical fiber 5 and the second optical fiber 6 through the sleeve 92, and the sleeve 91 of the optical fiber protecting sleeve 9 is covered outside the corresponding first optical fiber mounting portion 31 or second optical fiber mounting portion 41. In this embodiment, the light guide sheath 9 is made of a black opaque PP material, and has a certain deformation, and is directly sleeved on the corresponding light guide and matched with the light guide, so as to shield the exposed light guide buckle structure on the light guide mounting bracket and the section of light guide from the light source to the light guide bracket, and avoid light leakage and light crosstalk caused by light emission from the light guide.
Referring to fig. 6 to 9, the first light guide mounting portion 31, the second light guide mounting portion 41 and the light guide sheath 9 are formed with an error-proofing structure.
Two first top ribs 32 are formed at intervals on the outer side of a first light guide mounting part 31, and a sleeve head 91 of a light guide sheath 9 corresponding to the first light guide mounting part 31 forms a first opening matched with the first top ribs 32; a second top rib 42 is formed on the outer side of the second light guide mounting part 41, and a sleeve head 91 of a light guide sheath 9 corresponding to the second light guide mounting part 41 forms a second opening matched with the second top rib 42; the first ridge 32, the first opening, the second ridge 42, and the second opening form an error-proof structure. The first and second ribs 32, 42 are 10mm in height and 1mm in width; the first opening is 4.5mm in height and 7mm in width; the second opening was 4.5mm high and 2mm wide.
An assembly identifier 93 is formed on the outside of the ferrule 91 of the optical guide sheath 9. In this embodiment, "a", "B" and "C" are engraved on the first surface of the fitting mark portion 93 of the three light guide sheaths 9, respectively, for distinguishing the corresponding light guides sleeved by the respective light guide sheaths 9.
In addition, an "L" or an "R" letter may be engraved on the second face of the fitting identification portion 93 of the three light guide sheaths 9 so as to distinguish between left and right side parts at the time of fitting, where "L" represents a left side part and "R" represents a right side part.
The present invention has been described in detail with reference to the embodiments of the drawings, and those skilled in the art can make various modifications to the invention based on the above description. Accordingly, certain details of the illustrated embodiments are not to be taken as limiting the invention, which is defined by the appended claims.
Claims (5)
1. The light guide head mounting structure for preventing light guides from mutually stringing is characterized by comprising a radiator, an LED circuit board assembly, a first light guide mounting bracket and a second light guide mounting bracket; the LED circuit board assembly comprises two first light sources and a second light source; the LED circuit board assembly, the first light guide mounting bracket and the second light guide mounting bracket are fixed on the radiator in a sequentially laminated manner; the first light guide mounting bracket is provided with two first light guide mounting parts, and the positions of the first light guide mounting parts correspond to the two first light sources respectively; the second light guide mounting bracket is provided with a second light guide mounting part, and the position of the second light guide mounting part corresponds to the second light source; the first light guide mounting bracket is hollowed out at a position corresponding to the second light source;
the first light guide mounting bracket and the second light guide mounting bracket extend towards the direction of the LED circuit board assembly to form a first flanging, the end face of the first flanging is a fixed distance away from the LED circuit board assembly, and the projection of the first flanging towards the direction of the LED circuit board assembly is enclosed around the periphery of each first light source and each second light source;
the radiator extends to the first light guide mounting bracket and the second light guide mounting bracket to form a second flanging, the second flanging is formed at the periphery of the first flanging, and the height of the second flanging is larger than the fixed distance;
the three-light-guide sheath comprises a sleeve head and a sleeve, the light-guide sheath is sleeved outside the first light guide and the second light guide respectively through the sleeve, and the sleeve head of the light-guide sheath is covered outside the corresponding first light guide installation part or second light guide installation part;
forming an assembly mark part outside the sleeve head of the light guide sheath;
the LED circuit board assembly, the first light guide mounting bracket, the second light guide mounting bracket and the light guide sheath are black.
2. The light guide head mounting structure for preventing light guides from crossing each other according to claim 1, further comprising two first light guides and a second light guide; the first light guide mounting part and the first light guide form a first buckling structure matched with each other, and the first light guide is fixed in the first light guide mounting part through the first buckling structure; the second light guide mounting part and the second light guide form a second buckling structure matched with each other, and the second light guide is fixed in the second light guide mounting part through the second buckling structure.
3. The light guide head mounting structure for preventing light guides from crossing each other according to claim 2, wherein the first light guide mounting portion, the second light guide mounting portion and the light guide sheath are formed with an error preventing structure.
4. A light guide head mounting structure for preventing light guide cross-talk according to claim 3, wherein two first ribs are formed on the outer side of one first light guide mounting part at intervals, and the sleeve head of one light guide sheath corresponding to the first light guide mounting part forms a first opening matched with the first ribs; a second top rib is formed on the outer side of the second light guide installation part, and a second opening matched with the second top rib is formed on the sleeve head of the light guide sheath corresponding to the second light guide installation part; the first top rib, the first opening, the second top rib and the second opening form the error-proof structure.
5. The light guide head mounting structure for preventing light guide cross-talk according to claim 4, wherein the first and second ribs are 10mm in height and 1mm in width; the height of the first opening is 4.5mm, and the width of the first opening is 7mm; the second opening is 4.5mm in height and 2mm in width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047002.4A CN108105715B (en) | 2018-01-18 | 2018-01-18 | Light guide head mounting structure for preventing light guides from mutually crossing light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810047002.4A CN108105715B (en) | 2018-01-18 | 2018-01-18 | Light guide head mounting structure for preventing light guides from mutually crossing light |
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| Publication Number | Publication Date |
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| CN108105715A CN108105715A (en) | 2018-06-01 |
| CN108105715B true CN108105715B (en) | 2023-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810047002.4A Active CN108105715B (en) | 2018-01-18 | 2018-01-18 | Light guide head mounting structure for preventing light guides from mutually crossing light |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108775545A (en) * | 2018-07-04 | 2018-11-09 | 华域视觉科技(上海)有限公司 | Eliminate the method for light guide speck and double-colored light guide |
| CN108983348B (en) * | 2018-09-26 | 2023-11-17 | 温州意华接插件股份有限公司 | Light guide structure and connector |
| CN108983349A (en) * | 2018-09-26 | 2018-12-11 | 温州意华接插件股份有限公司 | A kind of light guide structure and connector |
| CN110486692A (en) * | 2019-07-30 | 2019-11-22 | 南通冠东模塑股份有限公司 | A kind of car light light guide anti-light leakage structure |
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|---|---|
| CN108105715A (en) | 2018-06-01 |
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