CN216924238U - Limit structure of light guide incident end - Google Patents
Limit structure of light guide incident end Download PDFInfo
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- CN216924238U CN216924238U CN202123060740.9U CN202123060740U CN216924238U CN 216924238 U CN216924238 U CN 216924238U CN 202123060740 U CN202123060740 U CN 202123060740U CN 216924238 U CN216924238 U CN 216924238U
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- light guide
- incident end
- extension
- circuit board
- printed circuit
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Abstract
The utility model provides a limiting structure of a light guide incident end, which comprises a printed circuit board, a radiator and a limiting structure body arranged on the light guide incident end; the limiting structure body comprises an extension part, a first extension part and a second extension part, and the first extension part and the second extension part are respectively arranged at two ends of the extension part; one end of the extending part close to the second extending part is provided with a first positioning hole; the printed circuit board is erected on the first extending part and the second extending part, and a second positioning hole is formed in the position, corresponding to the first positioning hole, of the printed circuit board; the radiator is arranged on one side wall of the printed circuit board far away from the first extending part and the second extending part; the radiator is provided with a positioning pin which penetrates through the first positioning hole and the second positioning hole. The utility model adopts the limit structure designed at the light guide incident end, and directly realizes the direct limit of the light guide incident end and the printed circuit board, namely the LED light source, by the limit structure of the light guide incident end.
Description
Technical Field
The utility model relates to the technical field of automobile lamps, in particular to a limiting structure of a light guide incident end.
Background
In the mounting means of traditional car light guide, the incident end of light guide directly relies on extra erection support to accomplish spacingly, then realizes spacing and the fixed scheme of fastening with erection support and printed circuit board. The distance between the light guide incident end and the printed circuit board cannot be accurately ensured due to the fact that an extra mounting support is used as an intermediate medium, a tolerance chain between the light guide incident end and the printed circuit board and production and manufacturing is increased, and therefore the optical effect is affected.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a limiting structure of a light guide incident end.
The utility model provides a limiting structure of a light guide incident end, which comprises a printed circuit board, a radiator and a limiting structure body arranged on the light guide incident end;
the limiting structure body comprises an extension part, a first extension part and a second extension part, and the first extension part and the second extension part are respectively arranged at two ends of the extension part;
one end of the extending part close to the second extending part is provided with a first positioning hole;
the printed circuit board is erected on the first extending part and the second extending part, and a second positioning hole is formed in the position, corresponding to the first positioning hole, of the printed circuit board;
the radiator is arranged on one side wall of the printed circuit board far away from the first extending part and the second extending part;
and the radiator is provided with a positioning pin which penetrates through the first positioning hole and the second positioning hole.
Preferably, the extension portions are asymmetrically arranged in a radial direction of the light guide incident end.
Preferably, the first extension portion and the second extension portion abut against a side wall of the printed circuit board on which the light source is provided.
Preferably, the first extension and the extension are perpendicular to each other.
Preferably, the first extension is integrally formed with the extension.
Preferably, the second extension and the extension are perpendicular to each other.
Preferably, the second extension is integrally formed with the extension.
Preferably, the extension part is integrally formed with the light guide incident end.
Preferably, a heat conducting glue is coated between the heat radiator and the printed circuit board.
Compared with the prior art, the utility model has the following beneficial effects:
1. the utility model adopts the limit structure designed at the light guide incident end, and directly realizes the direct limit of the light guide incident end and the printed circuit board, namely the LED light source, by the limit structure of the light guide incident end;
2. the utility model reduces the design from the light guide incident end to the printed circuit board and the tolerance chain of production and manufacture, and better ensures the distance from the light guide incident end to the printed circuit board, namely better ensures the distance from the light guide incident end to the LED light source on the printed circuit board;
3. the utility model solves the problem that in the traditional light guide installation scheme, because the distance from the light guide incident end to the printed circuit board is overlarge, the LED emergent light on the printed circuit board cannot be better incident into the light guide incident end, so that the LED emergent light is absorbed by the peripheral part to burn the peripheral part.
Drawings
Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a first schematic structural diagram of a limiting structure of a light guide incident end according to the present invention;
fig. 2 is a schematic structural diagram of a limiting structure of the light guide incident end according to the present invention.
The figures show that:
Extension 9 of first positioning hole 3
Positioning pin 6
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the concept of the utility model. All falling within the scope of the present invention.
Example 1:
the embodiment provides a limiting structure of a light guide incident end, which comprises a printed circuit board 4, a heat sink 5 and a limiting structure body 2 arranged on the light guide incident end 1. The limiting structure body 2 comprises an extension part 9, a first extension part 10 and a second extension part 11, the first extension part 10 and the second extension part 11 are respectively arranged at two ends of the extension part 9, one end, close to the second extension part 11, of the extension part 9 is provided with a first positioning hole 3, the printed circuit board 4 is erected on the first extension part 10 and the second extension part 11, a second positioning hole 8 is arranged at a position, corresponding to the first positioning hole 3, on the printed circuit board 4, the radiator 5 is arranged on a side wall, far away from the first extension part 10 and the second extension part 11, of the printed circuit board 4, a positioning pin 6 is arranged on the radiator 5, and the positioning pin 6 penetrates through the first positioning hole 3 and the second positioning hole 8.
The extension portion 9 is integrally formed with the light guide incident end 1. The heat conducting glue is coated between the heat sink 5 and the printed circuit board 4, and the heat sink 5 can be assembled on the printed circuit board 4 by screwing, fastening, riveting, and the like, which is not limited in this embodiment.
The extension portions 9 are asymmetrically arranged in the radial direction of the light guide incident end 1. The first extension portion 10 and the second extension portion 11 are abutted on one side wall of the printed circuit board 4 on which the light source 7 is provided, the first extension portion 10 and the extension portion 9 are perpendicular to each other, the first extension portion 10 and the extension portion 9 are integrally formed, the second extension portion 11 and the extension portion 9 are perpendicular to each other, and the second extension portion 11 and the extension portion 9 are integrally formed.
Example 2:
those skilled in the art will understand this embodiment as a more specific description of embodiment 1.
The embodiment provides a limiting structure of a light guide incident end, a limiting structure body 2 designed at the light guide incident end 1 is an asymmetric structure relative to the shape of a light guide, the limiting structure body 2 comprises an extending portion 9 asymmetrically designed along the radial direction of the light guide incident end 1, and a first extending portion 10 and a first extending portion 11 connected with the extending portion 9 and located at two sides of the light guide incident end 1, and a first positioning hole 3 is designed on one side of the extending portion 9.
Printed circuit board 4 is connected to first extension portion 10 and first extension portion 11, and heat sink 5 is connected to printed circuit board 4, and printed circuit board 4 is located between first extension portion 10, first extension portion 11 and heat sink 5. A second positioning hole 8 is formed in the radiator 5 corresponding to the first positioning hole 3, a positioning pin 6 is arranged at a position, corresponding to the second positioning hole 8, on the radiator 5, and the positioning pin 6 penetrates through the first positioning hole 3 and the second positioning hole 8.
When the limiting structure body 2 is installed, the limiting structure body 2 of the light incident end 1 is tightly attached to one surface of the LED light source 7 of the printed circuit board 4, and it is ensured that the positioning pin 6 on the heat sink 5 passes through the first positioning hole 8 on the printed circuit board 4 and the first positioning hole 3 on the extension part 9. The positioning pin 6, the first positioning hole 8 and the second positioning hole are common structural designs, and the utility model is not limited thereto.
The limiting structure body 2 of the light guide incident end 1 is tightly attached to one surface of the LED light source 7 of the printed circuit board 4, so that the X-direction limitation from the light guide incident end 1 to the printed circuit board 4 (namely from the light guide incident end 1 to the LED light source 7) is ensured, the positioning pin 6 penetrates through the first positioning hole 3 on the limiting structure body 2, and the Y-direction limitation and the Z-direction limitation from the light guide incident end 1 to the printed circuit board 4 (namely from the light guide incident end 1 to the LED light source 7) are ensured. Therefore, the limiting structure body 2 of the light guide incident end 1 ensures the omnidirectional limiting of the light guide incident end 1 to the X, Y and Z directions of the printed circuit board 4 (namely the light guide incident end 1 to the LED light source 7).
This embodiment adopts and designs the limit structure body at the light guide incident end, and the limit structure body that relies on the light guide incident end directly realizes that the light guide incident end is spacing with the directness of printed circuit board (being light guide incident end and LED light source promptly), and this embodiment has avoided the mounting means of traditional car light guide, and the incident end of light guide directly relies on extra erection support to accomplish spacingly, then realizes spacing and the fixed scheme of fastening with erection support and printed circuit board.
The utility model adopts the limit and fastening structure designed at the light-guide incident end to directly limit the light-guide incident end and the printed circuit board, avoids using an additional mounting support as an intermediate medium, reduces a tolerance chain from the light-guide incident end to the printed circuit board and from the light-guide incident end to the printed circuit board, better ensures the distance from the light-guide incident end to the printed circuit board, namely better ensures the distance from the light-guide incident end to an LED light source on the printed circuit board, and solves the problem that the distance from the light-guide incident end to the printed circuit board cannot be accurately ensured due to the increase of the tolerance chain caused by the additional mounting support in the traditional light-guide mounting scheme, thereby influencing the optical effect; the problem of in the traditional light guide installation scheme, because the light guide incident end is too big to the printed circuit board distance, lead to the LED light source emergent light on the printed circuit board can't be better the incident and enter the light guide incident end, and then lead to LED light source emergent light to be absorbed by the surrounding part and burn the surrounding part is solved.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the utility model. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (9)
1. A limit structure of a light guide incident end is characterized by comprising a printed circuit board (4), a radiator (5) and a limit structure body (2) arranged on the light guide incident end (1);
the limiting structure body (2) comprises an extension part (9), a first extension part (10) and a second extension part (11), wherein the first extension part (10) and the second extension part (11) are respectively arranged at two ends of the extension part (9);
one end of the extension part (9) close to the second extension part (11) is provided with a first positioning hole (3);
the printed circuit board (4) is erected on the first extending part (10) and the second extending part (11), and a second positioning hole (8) is formed in the position, corresponding to the first positioning hole (3), of the printed circuit board (4);
the radiator (5) is arranged on one side wall of the printed circuit board (4) far away from the first extension part (10) and the second extension part (11);
and a positioning pin (6) is arranged on the radiator (5), and the positioning pin (6) penetrates through the first positioning hole (3) and the second positioning hole (8).
2. The limiting structure of the light guide incident end according to claim 1, wherein the extension portions (9) are disposed asymmetrically along the radial direction of the light guide incident end (1).
3. The structure of claim 1, wherein the first extension portion (10) and the second extension portion (11) abut against a side wall of the printed circuit board (4) on which the light source (7) is disposed.
4. The structure of limiting the incident end of a light guide according to claim 1, wherein the first extension (10) and the extension (9) are perpendicular to each other.
5. The structure of claim 4, wherein the first extension (10) is integrally formed with the extension (9).
6. The structure for limiting the incident end of a light guide according to claim 5, wherein the second extension (11) and the extension (9) are perpendicular to each other.
7. The structure of claim 6, wherein the second extension (11) is integrally formed with the extension (9).
8. The limiting structure of the light guide incident end according to claim 1, wherein the extending portion (9) is integrally formed with the light guide incident end (1).
9. The limiting structure of the light guide incident end according to claim 1, wherein a heat conducting glue is coated between the heat sink (5) and the printed circuit board (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123060740.9U CN216924238U (en) | 2021-12-07 | 2021-12-07 | Limit structure of light guide incident end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123060740.9U CN216924238U (en) | 2021-12-07 | 2021-12-07 | Limit structure of light guide incident end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216924238U true CN216924238U (en) | 2022-07-08 |
Family
ID=82251619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123060740.9U Active CN216924238U (en) | 2021-12-07 | 2021-12-07 | Limit structure of light guide incident end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216924238U (en) |
-
2021
- 2021-12-07 CN CN202123060740.9U patent/CN216924238U/en active Active
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