CN212618072U - Automobile optical signal device - Google Patents
Automobile optical signal device Download PDFInfo
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- CN212618072U CN212618072U CN202021240810.1U CN202021240810U CN212618072U CN 212618072 U CN212618072 U CN 212618072U CN 202021240810 U CN202021240810 U CN 202021240810U CN 212618072 U CN212618072 U CN 212618072U
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Abstract
The utility model aims at providing an automobile light signal device that luminous is even, compact structure. The utility model discloses an automobile light signal device includes LED light source and lens, and the key lies in, be equipped with thick wall light guide module on the light route between LED light source and the lens, thick wall light guide module is equipped with the income plain noodles towards the LED light source to and the play plain noodles towards the lens, the play plain noodles is equipped with the grading decorative pattern; the thick-wall light guide module is provided with a total reflection surface so that light rays entering the light inlet surface of the LED light source are reflected to the light outlet surface through the total reflection surface. The utility model discloses a car light signal device gives out light with the thick wall spare of traditional reflective luminous principle and current mainstream and combines together, has solved the narrow and long problem of luminous mouthful, has reduced whole size, easily arranges, has fine practicality.
Description
Technical Field
The patent of the utility model belongs to the technical field of car lamps and lanterns.
Background
At present, the technology of the light source of the automobile lamp is rapidly developed, and the traditional halogen bulb light source is developed to widely adopt an LED (light emitting diode) light source. The LED light source has the advantages of long light-emitting life, low power consumption, customizable color, high reliability and the like. Under the challenges and requirements of the modern automobile with different models, the light source becomes the first choice of the light source of the automobile optical signal device lamp which occupies absolute advantages.
At present, the automobile optical signal device has the following schemes: 1. LED + direct projection type; 2. LED + direct-projection + inner lens; 3. LED + reflective + internal lens; 4. LED + thick-walled parts, which are aimed at achieving uniform light emission, have various drawbacks or deficiencies in each of the above solutions. If the schemes 1, 2 and 3 are adopted, the light is difficult to be completely uniform, after the LED is lightened, the granular sensation of the appearance is strong, the light uniformity is poor, and the size requirement of the light outlet opening of the corresponding lamp is large. Although the scheme 4 can realize relatively uniform light emission, generally, the LED light source, the thick-wall part and the lens are positioned on the same straight line, so that the whole lamp is large in size and not easy to arrange, which is also the root cause for carefully selecting the scheme 4 by many automobile manufacturers at present.
Disclosure of Invention
The utility model aims at providing an automobile light signal device that luminous is even, compact structure.
The utility model discloses an automobile light signal device includes LED light source and lens, and the key lies in, be equipped with thick wall light guide module on the light route between LED light source and the lens, thick wall light guide module is equipped with the income plain noodles towards the LED light source to and the play plain noodles towards the lens, the play plain noodles is equipped with the grading decorative pattern; the thick-wall light guide module is provided with a total reflection surface so that light rays entering the light inlet surface of the LED light source are reflected to the light outlet surface through the total reflection surface.
The thick-wall light guide module is generally made of PC or PMMA (acrylic) with better light transmission effect, and light can be directionally transmitted in the thick-wall light guide module, which is a known technology and is not described herein again.
Light rays emitted by the LED light source enter the thick-wall light guide module through the light incident surface of the thick-wall light guide module, change the propagation direction after being reflected by the total reflection surface, enter the light distribution lens through the light emergent surface, and are scattered by the light distribution patterns at the light emergent surface, so that the emergent light rays are more uniform. The thick-wall light guide module adopts the total reflection surface to change the light propagation path, so that the LED light source, the thick-wall light guide module and the lens are not required to be in the same straight line, the occupied space is reduced, and the automobile optical signal device is more compact in structure and easy to arrange.
Preferably, the light distribution lens consists of an inner light distribution lens and an outer light distribution lens which are arranged at intervals, the light incident surface of the inner light distribution lens is provided with secondary light distribution patterns, and the uniformity of emergent light of the automobile optical signal device can be obviously improved through secondary light distribution of the inner light distribution lens.
Preferably, the LED light source is composed of a PCB board and a yellow LED and/or a white LED arranged on the PCB board, and functions of a turn light, a daytime running light and a position light can be realized.
Preferably, the PCB board is provided with a positioning through hole, the thick-wall light guide module is provided with a guide positioning column which is vertical to the PCB board and inserted into the positioning through hole of the PCB board, and the axial direction of the guide positioning column is perpendicular to the plane of the light incident surface of the thick-wall light guide module. The guide positioning column can fix the relative position between the thick-wall light guide module and the LED light source, ensures that the light incident surface of the thick-wall light guide module is vertical to most emergent rays of the LED light source, and more effectively utilizes the LED light source.
Preferably, the light incident surface of the thick-wall light guide module is provided with a convex part protruding towards the direction of the LED light source on the side close to the light emergent surface, the bottom surface of the convex part is a second reflecting surface facing towards the light incident surface of the thick-wall light guide module, the convex part can not only block the light emitted from the LED light source towards the direction of the lens, so as to prevent the light from being emitted out directly through the lens to cause the divergence of the emergent light direction of the optical signal device of the automobile, but also reflect part of the light which is not directly emitted into the thick-wall light guide module by using the second reflecting surface, thereby improving the light utilization rate of the LED light source.
The utility model discloses a car light signal device gives out light with the thick wall spare of traditional reflective luminous principle and current mainstream and combines together, has solved the narrow and long problem of luminous mouthful, has reduced whole size, easily arranges, has fine practicality.
Drawings
Fig. 1 is a schematic diagram of the structure of an automotive optical signal device according to embodiment 1.
Fig. 2 is a schematic diagram of light propagation of the automotive optical signal device of embodiment 1.
The figures are numbered: 1. an LED light source; 11. a PCB board; 12. a yellow LED; 13. a white light LED; 2. a thick-wall light guide module; 21. a light incident surface; 22. a light-emitting surface; 23. a total reflection surface; 24. guiding the positioning column; 25. a convex portion; 3. an inner lens; 4. an outer lens.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings, wherein the embodiments of the present invention are described in detail with reference to the accompanying drawings, for example, the shapes and structures of the respective members, the mutual positions and connection relationships between the respective portions, the functions and operation principles of the respective portions, and the like.
Example 1:
the embodiment provides an automobile optical signal device with uniform light emission and compact structure.
As shown in fig. 1, the automotive optical signal device of the present embodiment includes an LED light source 1, a thick-wall light guide module 2, an inner lens 3, and an outer lens 4, which are sequentially arranged along a light propagation direction, wherein the thick-wall light guide module 2 is provided with a light incident surface 21 facing the LED light source 1, and a light emergent surface 22 facing the inner lens 3, and the light emergent surface 22 is provided with light distribution patterns, in the present embodiment, the light distribution patterns are vertical stripes, and the size of a single vertical stripe is 1.2mm × 7 mm; the light incident surface 21 is perpendicular to the light emitting surface 22, and the thick-wall light guide module 2 is provided with a total reflection surface 23 on a side away from the light emitting surface 22, so that light rays entering the light incident surface 21 from the LED light source 1 are reflected to the light emitting surface 22 through the total reflection surface 23; the light incident surface of the inner lens 3 is provided with a corn-shaped secondary light distribution pattern.
The LED light source 1 is located right below the light incident surface 21, and specifically includes a PCB 11, and a yellow LED12 and a white LED13 disposed on the PCB 11, so as to implement functions of a turn light, a daytime running light, and a position light.
The PCB 11 is provided with a positioning through hole at one side facing the inner lens 3, the thick-wall light guide module 2 is provided with a guide positioning column 24 which is vertical and inserted into the positioning through hole of the PCB 11, and the axial direction of the guide positioning column 24 is vertical to the plane of the light incident surface 21 of the thick-wall light guide module 2; the light incident surface 21 of the thick-walled light guide module 2 is provided with a convex portion 25 protruding toward the LED light source 1 on a side close to the light exit surface 22, and a bottom surface of the convex portion 25 is a second reflection surface facing the light incident surface 21 of the thick-walled light guide module 2. The guiding and positioning column 24 can fix the relative position between the thick-wall light guide module 2 and the LED light source 1, and ensure that the light incident surface 21 of the thick-wall light guide module 2 is perpendicular to most of the emergent light of the LED light source 1, thereby more effectively utilizing the LED light source 1. Above-mentioned convex part 25 not only can form certain the stopping to the light of LED light source 1 directive lens direction, avoids this part light to directly shoot out through the lens and lead to the divergence of car light signal device outgoing light direction, still utilizes the second plane of reflection simultaneously to shoot into thick wall leaded light module 2 with some light that does not directly shoot into in thick wall leaded light module 2 in through the reflection, improves LED light source 1's light utilization ratio.
As shown in fig. 2, light emitted from the LED light source 1 enters the thick-walled light guide module 2 through the light incident surface 21 of the thick-walled light guide module 2, is reflected by the total reflection surface 23, changes its propagation direction, passes through the light exit surface 22, enters the inner lens 3, and finally exits through the outer lens 4, where the light of the LED is scattered by the light distribution pattern at the light exit surface 22 of the thick-walled light guide module 2 for the first time, and is scattered by the secondary light distribution pattern at the light incident surface of the inner lens 3 for the second time, and the light after refraction and secondary scattering passes through the lamp outer lens 4, so that the light can be homogenized in appearance, the appearance quality of the lighted lamp is improved, and the light distribution software can be applied to the existing development projects, and the digital simulation of the light distribution software can achieve the expected effect.
Because the thick-wall light guide module 2 adopts the total reflection surface 23 to change the light transmission route, the LED light source 1, the thick-wall light guide module 2 and the lens are not required to be in the same straight line, thereby reducing the occupied space, leading the structure of the automobile optical signal device to be more compact and easy to arrange.
The present invention has been described in detail with reference to the accompanying drawings, and it is apparent that the present invention is not limited by the above embodiments, and various insubstantial improvements can be made without modification to the present invention.
Claims (5)
1. An automobile optical signal device comprises an LED light source and a light distribution mirror, and is characterized in that a thick-wall light guide module is arranged on a light path between the LED light source and the light distribution mirror, the thick-wall light guide module is provided with a light incoming surface facing the LED light source and a light outgoing surface facing the light distribution mirror, and the light outgoing surface is provided with light distribution patterns; the thick-wall light guide module is provided with a total reflection surface so that light rays entering the light inlet surface of the LED light source are reflected to the light outlet surface through the total reflection surface.
2. The automotive optical signal device of claim 1, wherein the lens is composed of an inner lens and an outer lens which are arranged at intervals, and the light incident surface of the inner lens is provided with a secondary light distribution pattern.
3. The automotive light signaling device of claim 1 or 2 wherein the LED light source is formed by a PCB board and a yellow LED and/or a white LED disposed on the PCB board.
4. The automotive optical signal device according to claim 3, wherein the PCB is provided with a positioning through hole, the thick-wall light guide module is provided with a guiding positioning column which is perpendicular to the positioning through hole of the PCB, and the axial direction of the guiding positioning column is perpendicular to the plane of the light incident surface of the thick-wall light guide module.
5. The automotive optical signal device according to claim 4, wherein the light incident surface of the thick-walled light guide module is provided with a convex portion protruding toward the LED light source on a side close to the light exit surface, and a bottom surface of the convex portion is a second reflecting surface facing the light incident surface of the thick-walled light guide module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021240810.1U CN212618072U (en) | 2020-06-30 | 2020-06-30 | Automobile optical signal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021240810.1U CN212618072U (en) | 2020-06-30 | 2020-06-30 | Automobile optical signal device |
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| Publication Number | Publication Date |
|---|---|
| CN212618072U true CN212618072U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021240810.1U Active CN212618072U (en) | 2020-06-30 | 2020-06-30 | Automobile optical signal device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114963118A (en) * | 2022-05-26 | 2022-08-30 | 嘉兴海拉灯具有限公司 | Optical system and car lamp |
-
2020
- 2020-06-30 CN CN202021240810.1U patent/CN212618072U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114963118A (en) * | 2022-05-26 | 2022-08-30 | 嘉兴海拉灯具有限公司 | Optical system and car lamp |
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