Light guide structure of automobile lamp

Abstract

A light-emitting strip is arranged in a decorative frame, the decorative frame is connected with a reflective mirror, a light-emitting groove is formed in the decorative frame, the side portion of the light-emitting strip is arranged in the light-emitting groove, reflective teeth are evenly distributed at the bottom of the reflective mirror, a light guide piece is arranged at the end of the inner side of the decorative frame, and the light guide piece is located between the decorative frame and the light-emitting strip. The light guide structure of the automobile lamp is convenient to install, capable of reducing assembly space and low in cost.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile lamps, and specifically relates to a light guide structure of an automobile lamp. Background Art

[0002] Today's lamps often require a lot of space due to the complexity of internal parts assembly, resulting in the space occupied by the lamps being unable to meet OEM's requirements for flat and refined appearance and shape.

[0003] In the prior art, due to the complexity of the internal space of the lamp and space limitations, it is difficult for light to reach the end area of ​​the lamp evenly inside, which easily leads to the problem of lighting up dark areas. The current technology increases shielding aluminum plating or increases aluminum-plated injection molded parts on the side of the decorative frame. However, shielding aluminum plating has high requirements on the shielding process, the yield rate of single product manufacturing is low, and the production cost is high. Aluminum-plated injection molded parts require a large installation space, and the assembly process is cumbersome, requiring customized tooling, which adds additional costs.

[0004] The utility model patent with announcement number CN219367483U disclosed a thick-walled light guide structure and a car lamp on July 18, 2023. The thick-walled light guide structure of the car lamp includes a thick-walled light guide body, a concentrator and an LED light source. The thick-walled light guide body has a thick-walled light guide body and a widening portion. One end of the thick-walled light guide body is a light incident surface, and the other end is a first light emitting surface. The widening portion has a widening surface. The first light emitting surface and the widening surface are not parallel or perpendicular to each other. A concentrator is provided at the light incident surface, and the LED light source is arranged corresponding to the concentrator. The thick-walled light guide structure of the car lamp does not have the effect of easy installation, nor can it reduce the assembly space. Utility Model Content

[0005] The utility model aims to provide a light guide structure for an automobile lamp which is easy to install, can reduce assembly space and has low cost in view of the deficiencies in the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The automobile lamp light guide structure comprises a light strip arranged in the decorative frame, the decorative frame is connected to a reflector, a light outlet groove is arranged on the decorative frame, the side of the light strip is arranged in the light outlet groove, reflective teeth are evenly distributed on the bottom of the reflector, a light guide sheet is arranged at the inner end of the decorative frame, and the light guide sheet is located between the decorative frame and the light strip.

[0008] A first boss is provided inside the decorative frame, a second boss is provided at the inner end of the light strip, the first boss and the second boss are respectively located on both sides of the light guide, and the light guide is clamped between the first boss, the second boss and the decorative frame.

[0009] Blocks are arranged on both sides of the light guide plate, an inclined portion is arranged at one end of the block, and an opening is arranged on the side of the light guide plate inside the inclined portion.

[0010] The bottom of the light guide plate is provided with a flange.

[0011] The end of the light guide plate is a stepped structure.

[0012] The light guide plate is a stainless steel light guide plate.

[0013] A mounting seat is also provided at the bottom of the reflector. The mounting seats are arranged in pairs. A mounting plate is provided on one side of the reflector, and a fixing pin is provided on the other side.

[0014] A mounting block is provided on the side of the decorative frame, and a mounting hole is provided on the mounting block.

[0015] The technical effect of the utility model is as follows: by adopting the light guide structure of the automobile lamp of the utility model, a light guide plate is added inside the lamp, and through the reflection of light from the optical surface of the light guide plate, the effect of improving the uniform lighting of the appearance of the lamp is achieved, and the problem of dark areas in the lighting of the lamp in the prior art is solved; and the structures of the decorative frame, the light strip and the light guide plate are optimized and designed, which facilitates the installation of the light guide plate, requires little installation space, does not affect the original structure of the lamp, and has a simple structure of the light guide plate, high installation stability and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] This specification includes the following drawings, which show the following contents:

[0017] Figure 1 It is a schematic diagram of the installation structure of the light guide structure of the automobile lamp of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the light guide structure of the automobile lamp of the utility model with the decorative frame removed;

[0019] Figure 3-1 to Figure 3-3 It is an overall schematic diagram of the light guide structure of the automobile lamp of the utility model;

[0020] Figure 4-1 and Figure 4-2 The utility model is a structural schematic diagram of a light guide sheet of a light guide structure of an automobile lamp.

[0021] The markings in the figure are: 1. Decorative frame; 2. Light strip; 3. Reflector; 4. Light guide; 5. Reflective teeth; 6. Light outlet groove; 7. First boss; 8. Second boss; 9. Block; 10. Inclined portion; 11. Flanged edge; 12. Opening; 13. Mounting plate; 14. Fixing pin; 15. Mounting block; 16. Mounting hole; 17. Mounting seat. DETAILED DESCRIPTION

[0022] The specific implementation methods of the utility model are further explained in detail below with reference to the accompanying drawings through the description of embodiments, with the aim of helping those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention and to facilitate their implementation.

[0023] like Figure 1 to Figure 4-2 As shown, the light-guiding structure of the automobile lamp has a light strip 2 arranged in a decorative frame 1, the decorative frame 1 is connected to a reflector 3, a light outlet groove 6 is arranged on the decorative frame 1, the side of the light strip 2 is arranged in the light outlet groove 6, reflective teeth 5 are evenly distributed on the bottom of the reflector 3, a light guide plate 4 is arranged at the inner end of the decorative frame 1, and the light guide plate 4 is located between the decorative frame 1 and the light strip 2.

[0024] After being reflected by the reflective teeth 5 of the reflector 3, the light is emitted from the light-emitting area of ​​the light-emitting groove 6 of the light-emitting strip 2. Due to the space limitation of the end position of the decorative frame 1, the incident amount of light passing through this area is small. By adding a light guide 4 at the inner end of the decorative frame 1, the light is reflected to the light guide 4 through the optical surface, and then reflected to the light outlet area after a second reflection, so as to solve the problem of the dark area of ​​the lighting of the lamp and improve the uniformity of the lighting of the car lamp. Among them, the light guide 4 adopts a card connection method, and does not need to use a connector or additional tooling for installation. The light guide 4 is a sheet structure as a whole, and its structure is compact, which can reduce the assembly space and is suitable for use in complex and limited lamp spaces.

[0025] like Figure 1 As shown, a first boss 7 is provided on the inner side of the decorative frame 1, and a second boss 8 is provided on the inner end of the light strip 2. The first boss 7 and the second boss 8 are respectively located on both sides of the light guide 4, and the light guide 4 is clamped between the first boss 7, the second boss 8 and the decorative frame 1. The first boss 7 and the second boss 8 are arranged opposite to each other, and the arrangement of the first boss 7 and the second boss 8 constitutes the installation space of the light guide 4, and limits and presses the light guide 4 after installation, so as to improve the installation convenience and installation firmness of the light guide 4. Therefore, the light guide 4 can be installed without customized tooling, avoiding complicated and cumbersome assembly procedures, and improving the installation convenience.

[0026] like Figure 4-1 and Figure 4-2As shown, blocks 9 are provided on both sides of the light guide 4, and an inclined portion 10 is provided at one end of the block 9. An opening 12 is provided on the side of the light guide 4 located inside the inclined portion 10. The inclined portion 10 is inclined relative to the side of the light guide 4. When the light guide 4 is installed, the light guide 4 is inserted into one side of the first boss 7 and the second boss 8. The inclined portion 10 can be elastically deformed after receiving the pressure from the inner wall of the decorative frame 1 and the light strip 2, thereby stably pressing the light guide 4 between the two bosses and the inner wall of the decorative frame 1. The inclined portion 10 forms a barb structure of the light guide 4, which is stable and difficult to loosen even in a vibrating working condition. The opening 12 is provided to avoid the deformation of the inclined portion 10 under pressure, and its effect is to prevent the pressure on the inclined portion 10 from being directly transmitted to the light guide 4 and causing its deformation under the premise of ensuring the overall stable installation of the light guide 4.

[0027] like Figure 4-1 and Figure 4-2 As shown, a flange 11 is provided at the bottom of the light guide 4. The flange 11 can facilitate the pressing of the hands of the staff or the manipulator during installation to avoid damaging the optical surface of the light guide 4. The cross-section of the flange 11 is an arc-shaped structure, which can be used as a structural transition to reduce stress concentration. After assembly, the flange 11 can also be used to abut against the end of the reflector 3, which can facilitate the operator to check whether the light guide 4 is installed in the correct position.

[0028] like Figure 1 , Figure 4-1 and Figure 4-2 As shown, the end of the light guide plate 4 is a stepped structure. The above structure can adapt the light guide plate 4 to the end of the decorative frame 1 to increase its reflective area. The area of ​​the light guide plate 4 is adapted to the cross-sectional area of ​​the decorative frame 1, thereby achieving the effect of fully reflecting the light and improving its light extraction efficiency.

[0029] The light guide plate 4 is a stainless steel light guide plate. The optical surface of the light guide plate 4 is a stainless steel light guide layer. The light reflectivity of the light guide plate 4 is close to that of aluminum plating, and the corrosion resistance of the light guide plate 4 can be improved, and its service life can be extended. In addition, the cost of using stainless steel is lower, which is conducive to mass production.

[0030] like Figure 3-1 to Figure 3-3 As shown, a mounting seat 17 is further provided at the bottom of the reflector 3, and the mounting seats 17 are arranged in pairs, and a mounting plate 13 is provided on one side of the reflector 3, and a fixing pin 14 is provided on the other side. The mounting plate 13 can fix the reflector 3 as a whole, and the mounting plate 13 and the fixing pin 14 respectively position or fix the two sides of the reflector 3. Through the joint action of the mounting seat 17, the mounting plate 13 and the fixing pin 14, the reflector 3 can be stably installed in the lamp.

[0031] like Figure 3-1 to Figure 3-3As shown, a mounting block 15 is provided on the side of the decorative frame 1, and a mounting hole 16 is provided on the mounting block 15. There are multiple mounting blocks 15, and the decorative frame 1 and the lamp can be fixed as a whole by installing a connector in the mounting hole 16, which is conducive to ensuring that the light emitting area of ​​the lamp is in an accurate position.

[0032] The light-guiding structure of the automobile lamp is provided with a light guide plate 4 inside the lamp. Through the reflection of light from the optical surface of the light guide plate 4, the effect of improving the uniform lighting of the appearance of the lamp is achieved, and the problem of dark areas in the lighting of the lamp in the prior art is solved; and the structures of the decorative frame 1, the light strip 2 and the light guide plate 4 are optimized and designed, which facilitates the installation of the light guide plate 4, requires little installation space, does not affect the original structure of the lamp, and has a simple structure, high installation stability and low cost.

[0033] The above is an exemplary description of the utility model in conjunction with the accompanying drawings. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model; or the above concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A light guide structure for an automobile lamp, characterized in that: A light strip (2) is arranged inside the decorative frame (1), the decorative frame (1) is connected to a reflector (3), a light outlet groove (6) is arranged on the decorative frame (1), the side of the light strip (2) is arranged in the light outlet groove (6), the bottom of the reflector (3) is evenly distributed with reflective teeth (5), and a light guide sheet (4) is arranged at the inner end of the decorative frame (1), and the light guide sheet (4) is located between the decorative frame (1) and the light strip (2).

2. The light guide structure of an automobile lamp according to claim 1, characterized in that: A first boss (7) is provided on the inner side of the decorative frame (1), and a second boss (8) is provided on the inner end of the light strip (2); the first boss (7) and the second boss (8) are respectively located on both sides of the light guide sheet (4); and the light guide sheet (4) is clamped between the first boss (7), the second boss (8) and the decorative frame (1).

3. The light guide structure of an automobile lamp according to claim 2, characterized in that: Blocks (9) are provided on both sides of the light guide plate (4), an inclined portion (10) is provided at one end of the block (9), and an opening (12) is provided on the side of the light guide plate (4) located inside the inclined portion (10).

4. The light guide structure of an automobile lamp according to claim 3, characterized in that: The bottom of the light guide plate (4) is provided with a flange (11).

5. The light guide structure of an automobile lamp according to claim 4, characterized in that: The end of the light guide plate (4) is a stepped structure.

6. The light guide structure of an automobile lamp according to any one of claims 1 to 5, characterized in that: The light guide plate (4) is a stainless steel light guide plate.

7. The light guide structure of an automobile lamp according to claim 6, characterized in that: A mounting seat (17) is also provided at the bottom of the reflector (3). The mounting seats (17) are arranged in pairs. A mounting plate (13) is provided on one side of the reflector (3), and a fixing pin (14) is provided on the other side.

8. The light guide structure of an automobile lamp according to claim 7, characterized in that: A mounting block (15) is provided on the side of the decorative frame (1), and a mounting hole (16) is provided on the mounting block (15).

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