Automobile atmosphere lamp light-transmitting structure

Abstract

The utility model discloses an automobile atmosphere lamp light-transmitting structure which comprises a light uniformizing strip (1), a light guide strip (3) is arranged on the inner side of the light uniformizing strip (1), the light uniformizing strip (1) wraps the outer side of the light guide strip (3), optical teeth (4) are arranged on the surface, exposed out of the outer side of the light uniformizing strip (1), of the light guide strip (3), and a light-emitting face (2) is arranged on the side, away from the light guide strip (3), of the light uniformizing strip (1). The light equalizing strip (1) of the atmosphere lamp is strip-shaped, is in surface contact with the light guide strip (3) and plays roles in supporting, receiving and equalizing light of the light guide strip (3), received strip-shaped surface light emission of the light guide strip (3) is expanded to overall surface light emission, the light emitting effect is reflected on the light emitting surface (2), and by improving the structures of the light equalizing strip (1) and the internal light guide strip (3), the process forming structure is simplified, and the production cost is reduced. The problems of scratches, bright spots, abnormal sounds and the like of the assembly of the light guide strip (3) are avoided, and the yield of products is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive ambient lighting technology. Specifically, this utility model relates to a light-transmitting structure for automotive ambient lighting. Background Technology

[0002] In addition to technological updates, the automotive industry is increasingly driven by user demand for aesthetic enhancements. The interior lighting of cars is designed to select and control light based on changes in space and time, aligning with the concept of technologically advanced headlights and improving driving comfort. Ambient lighting in cars can also improve the driving environment and enhance user satisfaction.

[0003] A patent application (patent number 202410582434.0, published on July 2, 2024) discloses a light-transmitting structure and manufacturing process for automotive interior ambient lighting. The light-transmitting structure includes: a frame on which a light guide plate, a panel, and a surface layer are sequentially arranged; the frame is mounted on the interior structure of the vehicle to provide support for the light guide plate, panel, and surface layer; the light guide plate is mounted on the frame to evenly distribute the light emitted by the light source; the panel is located on the side of the light guide plate opposite to the frame to support and protect the internal structure; and the surface layer is attached to the surface of the panel to enhance the visual effect and artistic feel of the ambient lighting. Both the light guide plate and the panel are made of transparent sheet metal and are hot-pressed. The manufacturing process includes injection molding of the frame, hot-pressing of the panel, hot-pressing of the light guide plate, and sequential assembly of the frame with the light guide plate and panel. This invention effectively solves the technical problem of high investment costs in the injection molding of the panel and light guide plate in the prior art, which leads to relatively lower profits for enterprises.

[0004] In existing technologies, stress concentration areas are easily formed during the assembly of automotive headlight light guides, resulting in problems such as scratches, bright spots, and abnormal noises, which can lead to cracking and noise hazards. The process is complex, with long processing, packaging, and assembly times, high labor costs, and low yield rates. Utility Model Content

[0005] The present invention aims to provide a simplified structure and improved efficiency for automotive ambient lighting light transmission.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a light-transmitting structure for automotive ambient lights, including a light-diffusing strip, a light guide strip provided on the inner side of the light-diffusing strip, the light-diffusing strip wrapping around the outer side of the light guide strip, and one end of the light guide strip being exposed on the outer side of the light-diffusing strip.

[0007] The surface of the light guide strip exposed outside the light distribution strip has optical teeth.

[0008] The light-emitting surface is provided on the side of the light-diffusing strip away from the light guide strip.

[0009] The cross-section of the light-diffusing strip is U-shaped with equal lengths at both ends, and the end of the light guide strip protrudes from the light-diffusing strip.

[0010] The cross-section of the light guide strip is rectangular.

[0011] The light-diffusing strip can also be U-shaped with unequal lengths at both ends, and the light guide strip is located inside the light-diffusing strip.

[0012] The outer corner of the side of the light guide strip that is in contact with the short side of the light distribution strip is an inclined surface. One side of the inclined surface is connected to the short end of the light distribution strip. The outer surface of the light guide strip is flush with the long end surface of the light guide strip.

[0013] The technical effects of this utility model are as follows: by improving the structure of the light distribution strip and the internal light guide strip, the process molding structure is simplified while ensuring the lighting effect, and problems such as scratches, bright spots and abnormal noises in the light guide strip assembly are avoided, thereby improving the product yield. Attached Figure Description

[0014] This manual includes the following figures, which illustrate the following:

[0015] Figure 1 This is a schematic diagram of an embodiment of the light-transmitting structure of an automotive ambient light according to the present invention;

[0016] Figure 2 for Figure 1 A schematic diagram of a second embodiment of a car ambient light light transmission structure.

[0017] The markings in the diagram are: 1. Light distribution strip; 2. Light-emitting surface; 3. Light guide strip; 4. Optical teeth. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the utility model concept and technical solution, and to facilitate its implementation.

[0019] A light-transmitting structure for automotive ambient lighting includes a light-diffusing strip 1, with a light guide strip 3 disposed on the inner side of the light-diffusing strip 1. The light-diffusing strip 1 wraps around the outer side of the light guide strip 3, with one end of the light guide strip 3 protruding from the outer side of the light-diffusing strip 1. The length of the light guide strip 3 is greater than or equal to the length of the strip-shaped light-diffusing strip 1. By improving the structure of the light-diffusing strip 1 and the inner light guide strip 3, the manufacturing process is simplified while ensuring the lighting effect. This avoids problems such as scratches, bright spots, and abnormal noises in the assembly of the light guide strip 3, thereby improving the product yield.

[0020] The light guide strip 3 has optical teeth 4 on its surface exposed outside the light distribution strip 1. The optical teeth 4 reflect the light inside the light guide strip 3 to a set range. The position, size, tooth shape, angle and tooth width of the optical teeth 4 can be changed according to the structural direction. The light guide strip 3 receives the light from the light source and gradually expands the light emission of the lamp beads from a line to a narrow strip. The optical teeth 4 on the light guide strip 3 are designed in a certain direction according to the structure to adjust the light reflection range. The light guide strip 3 and the optical teeth 4 are colorless and transparent. According to the ISO 13468-2 national standard, using a C light source, the transmittance of the 3mm color plate is ≥86%.

[0021] The light-diffusing strip 1 has a light-emitting surface 2 on the side away from the light guide strip 3. The ambient light-diffusing strip 1 is strip-shaped and has surface contact with the light guide strip 3. It plays the role of supporting, receiving light from the light strip, and uniformly distributing the light from the light guide strip 3 to the overall surface light emission, and the light emission effect is reflected on the light-emitting surface 2.

[0022] Example 1: The cross-section of the light-diffusing strip 1 is U-shaped with equal lengths at both ends. The end of the light guide strip 3 protrudes from the light-diffusing strip 1. The cross-section of the light guide strip 3 is rectangular. The light-diffusing strip 1 wraps around a part of the light guide strip 3. While ensuring the support and reflection effects, a part of the light guide strip 3 can be reserved on the outside, where optical teeth 4 can be set.

[0023] Example 2: The light-diffusing strip 1 can also be U-shaped with unequal lengths at both ends. The light guide strip 3 is located inside the light-diffusing strip 1. The outer corner of the side of the light guide strip 3 that is in contact with the short side of the light-diffusing strip 1 is an inclined surface. One side of the inclined surface is connected to the short end of the light-diffusing strip 1. The outer surface of the light guide strip 3 is flush with the long end surface of the light guide strip 3.

[0024] In use, the light diffuser strip 1 and the light guide strip 3 are made by dual-color injection molding. It is better if the light diffuser strip 1 and the light guide strip 3 have different materials. This ensures that when the light diffuser strip 1 is injected into the light guide strip 3, the interface between the light guide strip 3 and the light diffuser strip 1 will not melt, affecting the non-designed reflection, refraction and scattering paths of light at the interface. The advantages of this are: First, the part is formed by dual-color injection molding. Compared with two injection moldings, the mold cost and the part weight cost are reduced. It avoids defects such as scratches and cracks during the assembly process. The pass rate of single-color injection molding is much higher than that of dual-color injection molding. Second, the hot runner temperature and other parameters of the light guide strip 3 and the optical teeth 4 are lower than those of the light diffuser strip 1 and the light-emitting surface 2 during injection molding. It will not affect the materials of the light guide strip 3 and the optical teeth 4. It avoids stress concentration in the materials of the light guide strip 3 and the optical teeth 4 during assembly, which will affect the aesthetics and optical effect of light transmission, and improve the overall pass rate of injection molded parts.

[0025] The technical effect of this utility model is as follows: by improving the structure of the light distribution strip 1 and the internal light guide strip 3, the process molding structure is simplified while ensuring the lighting effect, and problems such as scratches, bright spots and abnormal noises in the light guide strip 3 assembly are avoided, thereby improving the product yield.

[0026] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A light-transmitting structure for automotive ambient lighting, characterized in that: It includes a light-diffusing strip (1), and a light guide strip (3) is provided on the inner side of the light-diffusing strip (1). The light-diffusing strip (1) is wrapped around the outside of the light guide strip (3), and one end of the light guide strip (3) is exposed outside the light-diffusing strip (1).

2. The light-transmitting structure of an automotive ambient light according to claim 1, characterized in that: The light guide strip (3) has optical teeth (4) on the surface exposed outside the light distribution strip (1).

3. The light-transmitting structure of an automotive ambient light according to claim 1, characterized in that: The light-emitting surface (2) is provided on the side of the light-diffusing strip (1) away from the light guide strip (3).

4. The light-transmitting structure of an automotive ambient light according to claim 1, characterized in that: The cross-section of the light-diffusing strip (1) is U-shaped with equal lengths at both ends, and the end of the light guide strip (3) protrudes from the light-diffusing strip (1).

5. The light-transmitting structure of an automotive ambient light according to claim 4, characterized in that: The cross-section of the light guide strip (3) is rectangular.

6. The light-transmitting structure of an automotive ambient light according to claim 1 or 4, characterized in that: The light-diffusing strip (1) can also be U-shaped with unequal lengths at both ends, and the light guide strip (3) is located inside the light-diffusing strip (1).

7. The light-transmitting structure of an automotive ambient light according to claim 6, characterized in that: The outer corner of the side of the light guide strip (3) that is in contact with the short side of the light distribution strip (1) is an inclined surface. One side of the inclined surface is connected to the short end of the light distribution strip (1). The outer surface of the light guide strip (3) is flush with the long end surface of the light guide strip (3).

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