Vehicle lamp thick-wall light extinction structure
By setting blocking grooves and stiffeners on the outside of the thick-walled components of the headlight, combined with reinforcing ribs, the light transmission path is optimized, solving the problem of bright spots caused by light leakage from the thick-walled components, and improving the aesthetics and structural strength of the headlight.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIYAN DONGFENG SANLI VEHICLE LIGHTS CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-05-12
AI Technical Summary
The light leaking from the thick-walled components of existing car lights creates bright spots during transmission, affecting the lighting effect and aesthetics of the lights.
A matte finish is applied to the outer side of the thick-walled component, including blocking grooves and ribs, which are integrally formed by injection molding. The blocking grooves are not collinear with the light transmission path. Combined with reinforcing ribs and rounded corners, the light transmission path is optimized to eliminate bright spots.
It effectively eliminates bright spots during light transmission, enhances the overall aesthetics of the headlights, and strengthens the structural strength and impact resistance of thick-walled components.
Smart Images

Figure CN224229794U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive lighting technology, and in particular to a thick-walled extinction structure for automotive lighting. Background Technology
[0002] The thick-walled component of a car headlight is the core optical carrier of the headlight. It is usually made of transparent material and its main function is to conduct light. Generally, a decorative frame is set on the outside of the thick-walled component to fix and decorate the parts. In addition to providing stable support for the thick-walled component, it can also cover the internal structure and optimize the appearance of the headlight.
[0003] With the rapid evolution of headlight designs, the concept of thick-walled components protruding outside the trim frame has begun to lead the trend. However, due to the excessive size of the thick-walled components protruding outside the trim frame, bright spots will appear on the upper and lower sidewalls of the thick-walled components when light is transmitted inside them. These bright spots will affect the lighting effect of the thick-walled headlights and the overall aesthetics, and need to be optimized. Utility Model Content
[0004] To address the aforementioned problems, this utility model proposes a thick-walled light-absorbing structure for vehicle lights, thereby overcoming the shortcomings of existing designs.
[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a thick-walled light-absorbing structure for vehicle lights, including a light-absorbing pattern A provided on the outside of the thick-walled member, an incident surface provided at one end of the thick-walled member, a light-emitting surface provided at the other end of the thick-walled member, a concentrator provided on the incident surface, and the path from the incident surface to the light-emitting surface constitutes a light transmission route.
[0006] The matte finish A includes at least one blocking groove, which is formed on the upper and lower side walls of the thick-walled member. A rib is provided on one side of the blocking groove, and the rib is fixedly connected to the thick-walled member. The extension direction of the blocking groove and the rib is not collinear with the light transmission path.
[0007] A further improvement is that the starting angle line of the blocking groove forms an angle A with the normals of the upper and lower sidewalls of the thick-walled member, where 0° < angle A ≤ 60°.
[0008] A further improvement is that the starting angle line of the stiffener plate forms an angle B with the normals of the upper and lower side walls of the thick-walled member, where 0° < angle B ≤ 60°.
[0009] A further improvement is that the blocking groove and the thick-walled part are integrally molded using an injection molding process.
[0010] A further improvement is that: the outer side of the thick-walled component is provided with a matte texture B, which includes a reinforcing rib. The reinforcing rib is fixedly connected to the upper and lower side walls of the thick-walled component, and the extension direction of the reinforcing rib is not collinear with the light transmission path.
[0011] A further improvement is that: the left and right sides of the reinforcing rib are provided with rounded chamfers, the side of the rounded chamfer away from the reinforcing rib is provided with a curved slope, the curved slope transitions evenly towards the rounded chamfer, and the rounded chamfer transitions evenly towards the center of the reinforcing rib.
[0012] A further improvement is that the reinforcing rib and the thick-walled part are integrally molded using an injection molding process.
[0013] A further improvement is that the top and bottom of the thick-walled component are provided with decorative frames for fixing the thick-walled component.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] By using blocking grooves and stiffening plates to block the exposed light from thick-walled components, bright spots generated during light transmission are eliminated, ensuring the overall lighting aesthetics of the headlights.
[0016] The stiffeners are fixedly connected to the thick-walled components, ensuring uniform and stable optical performance while effectively enhancing the overall structural strength and impact resistance of the thick-walled components. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a structural diagram of the matte finish A in this utility model.
[0019] Figure 2 This is a structural diagram of the blocking groove in this utility model.
[0020] Figure 3 This is a structural diagram of the matte finish B in this utility model.
[0021] Figure 4 This is a structural diagram of the reinforcing rib in this utility model.
[0022] Among them: 1. Thick-walled component; 11. Light-emitting surface; 12. Incident surface;
[0023] 2. Frame; 3. Concentrator;
[0024] 4. Matte finish A; 41. Intercepting groove; 42. Rib plate;
[0025] 5. Matte finish B; 51. Reinforcing rib; 511. Gentle slope of curved surface; 512. Rounded chamfer. Detailed Implementation
[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0027] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a thick-walled light-absorbing structure for vehicle lights, including a light-absorbing pattern A4 on the outside of the thick-walled member 1. One end of the thick-walled member 1 is provided with an incident surface 12, and the other end of the thick-walled member 1 is provided with a light-emitting surface 11. A light-concentrating device 3 is provided on the incident surface 12, and the path from the incident surface 12 to the light-emitting surface 11 constitutes a light transmission route.
[0028] Light enters the thick-walled component 1 through the incident surface 12, and then exits outward through the thick-walled component 1. The concentrator 3 can focus the dispersed incident light from the LED lights into the area of the incident surface 12, reducing the divergence loss of light before incident, standardizing the incident direction of the light, and preventing stray light from causing interference in the light guide, thus ensuring the uniformity and stability of the light at the output surface. The concentrator 3 has a bowl-shaped structure, which will not be described in detail here.
[0029] The matte finish A4 includes at least one blocking groove 41, which is formed on the upper and lower side walls of the thick-walled member 1. A rib 42 is provided on one side of the blocking groove 41, and the rib 42 is fixedly connected to the thick-walled member 1. The extending directions of the blocking groove 41 and the rib 42 are not collinear with the light transmission path.
[0030] The upper and lower sidewalls of the thick-walled component 1, including the blocking groove 41 and the stiffening plate 42, extend in directions that are not collinear with the light transmission path. This effectively blocks exposed light from the thick-walled component 1, eliminates bright spots generated during light transmission, and ensures the overall aesthetic appeal of the headlights. The stiffening plate 42 is fixedly connected to the thick-walled component 1, ensuring uniform and stable optical performance while effectively enhancing the overall structural strength and impact resistance of the thick-walled component 1.
[0031] It is worth explaining in detail that the starting angle line of the blocking groove 41 forms an angle A with the normals of the upper and lower side walls of the thick-walled part 1, where 0° < angle A ≤ 60°.
[0032] It is worth explaining in detail that the starting angle line of the stiffener 42 forms an angle B with the normals of the upper and lower sidewalls of the thick-walled member 1, where 0° < angle B ≤ 60°. The angles on both sides of the blocking groove 41 and the stiffener 42 are adjustable from 0° to 60°.
[0033] The blocking groove 41 and the thick-walled part 1 are integrally molded using injection molding. This ensures that the overall structure of the thick-walled part 1 is robust and reliable.
[0034] In the second embodiment
[0035] The outer side of the thick-walled component 1 is provided with a matte finish B5, which includes a reinforcing rib 51. The reinforcing rib 51 is fixedly connected to the upper and lower side walls of the thick-walled component 1, and the extension direction of the reinforcing rib 51 is not collinear with the light transmission path. The reinforcing rib 51 effectively increases the overall structural strength of the thick-walled component 1, while also blocking the light leakage from the thick-walled component 1, further improving the matte finish capability of the thick-walled headlight.
[0036] It is worth explaining in detail that the reinforcing rib 51 has rounded chamfers 512 on both the left and right sides. The side of the rounded chamfer 512 away from the reinforcing rib 51 has a curved slope 511. The curved slope 511 transitions evenly towards the rounded chamfer 512, and the rounded chamfer 512 transitions evenly towards the center of the reinforcing rib 51. By using a transition structure with a large arc surface and a small angle, the bright spots caused by the large end face area and visible outer side of the reinforcing rib can be effectively eliminated, and the light reflection path can be optimized.
[0037] Similarly, the reinforcing rib 51 and the thick-walled part 1 are integrally molded using injection molding. This ensures that the overall structure of the thick-walled part 1 is robust and reliable.
[0038] The thick-walled component 1 has decorative frames 2 at its top and bottom for fixing it. The thick-walled component 1 is supported by the decorative frames 2.
[0039] How this application works:
[0040] Light enters the thick-walled component 1 through the incident surface 12 and then shines outward through the thick-walled component 1. The concentrator 3 can focus the dispersed incident light from the LED lamps into the range of the incident surface 12. The upper and lower sidewalls of the thick-walled component 1 have blocking grooves 41 and stiffeners 42 whose extension directions are not collinear with the light transmission path. When the light propagates along the light transmission path, the blocking grooves 41 and stiffeners 42 can effectively block the exposed light from the thick-walled component 1, eliminate the bright spots generated during the light transmission process, and ensure the overall lighting aesthetics of the headlights.
[0041] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0042] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.
Claims
1. A thick-walled extinction structure for vehicle headlights, characterized in that: Includes a matte finish A (4) on the outside of the thick-walled member (1), one end of the thick-walled member (1) is provided with an incident surface (12), the other end of the thick-walled member (1) is provided with a light-emitting surface (11), a concentrator (3) is provided on the incident surface (12), and the path from the incident surface (12) to the light-emitting surface (11) constitutes a light transmission route; The matte finish A (4) includes at least one blocking groove (41), which is formed on the upper and lower side walls of the thick-walled member (1). A rib (42) is provided on one side of the blocking groove (41), and the rib (42) is fixedly connected to the thick-walled member (1). The extending directions of the blocking groove (41) and the rib (42) are not collinear with the light transmission path.
2. The thick-walled extinction structure for vehicle lamps according to claim 1, characterized in that: The starting angle line of the blocking groove (41) forms an angle A with the normals of the upper and lower sidewalls of the thick-walled member (1), where 0° < angle A ≤ 60°.
3. The thick-walled extinction structure for vehicle lamps according to claim 1, characterized in that: The starting angle line of the stiffening plate (42) forms an angle B with the normals of the upper and lower side walls of the thick-walled member (1), where 0° < angle B ≤ 60°.
4. The thick-walled extinction structure for vehicle lamps according to claim 1, characterized in that: The blocking groove (41) and the thick-walled part (1) are integrally formed by injection molding.
5. The thick-walled extinction structure for vehicle lamps according to claim 1, characterized in that: The thick-walled component (1) has a matte finish B (5) on its outer side. The matte finish B (5) includes a reinforcing rib (51). The reinforcing rib (51) is fixedly connected to the upper side wall and the lower side wall of the thick-walled component (1). The extending direction of the reinforcing rib (51) is not collinear with the light transmission path.
6. The thick-walled extinction structure for vehicle lamps according to claim 5, characterized in that: The reinforcing rib (51) has rounded chamfers (512) on both sides. The rounded chamfers (512) have curved slopes (511) on the side away from the reinforcing rib (51). The curved slopes (511) transition evenly towards the rounded chamfers (512), and the rounded chamfers (512) transition evenly towards the center of the reinforcing rib (51).
7. The thick-walled extinction structure for vehicle lamps according to claim 5, characterized in that: The reinforcing rib (51) and the thick-walled part (1) are integrally formed by injection molding.
8. A thick-walled extinction structure for vehicle lamps according to any one of claims 1-7, characterized in that: The top and bottom of the thick-walled member (1) are provided with decorative frames (2) for fixing the thick-walled member (1).