Anti-sink mark structure of automobile lamp lens
The anti-shrinkage structure for automobile lamp mirrors addresses the issue of shrinkage marks by using convex walls and extension walls to achieve uniform thickness at sharp corners, improving the lamp's appearance and production ease.
Patent Information
- Application Number
- CN202421188730.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-27
AI Technical Summary
Existing automobile lamp light distribution mirrors often have sharp corners with non-uniform wall thickness, leading to shrinkage marks that affect the appearance.
The design incorporates first and second convex walls forming an acute angle at the sharp corner, with extension walls extending from each end, ensuring a gradual thickness reduction from 2 mm to 1.3 mm, preventing shrinkage marks.
The solution maintains a consistent wall thickness at the sharp corner, avoiding shrinkage marks and enhancing the lamp's appearance while maintaining a simple and easy-to-produce structure.
Smart Images
Figure CN222297734U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of automobile lamp accessories, and specifically designs an anti-shrinkage structure for a light distribution mirror of an automobile lamp. Background Art
[0002] The CAS of automobile lamps is based on aesthetics. There are often sharp corners on both sides of the light distribution mirror. The wall thickness at the sharp corners is much greater than the basic wall thickness, which is prone to shrinkage marks, thus seriously affecting the appearance of the lamp. Figure 1 As shown, at the sharp corner of the existing lamp mirror, the wall thickness of the two side walls is consistent, resulting in a thicker thickness at the sharp corner, such as 6mm as shown in the figure, which produces shrinkage marks and affects the appearance. Therefore, it is very important to obtain an anti-shrinkage structure for the automotive lamp mirror that overcomes the above defects. Utility Model Content
[0003] In order to solve at least one of the above-mentioned technical problems, the utility model provides an anti-shrinkage structure for a light distribution mirror of an automobile lamp, including a light distribution mirror body, on which a first convex wall and a second convex wall are provided, wherein the connection between the first ends of the first convex wall and the second convex wall forms a sharp angle, and an angle is formed between the first convex wall and the second convex wall, and the angle is an acute angle, so that the wall thickness of the first convex wall and / or the second convex wall gradually decreases from the first end of the sharp angle to the second end to prevent shrinkage marks.
[0004] A first extension wall with uniform thickness extends from the second end of the first convex wall, and the thickness of the pointed corner is consistent with the thickness of the first extension wall.
[0005] A second extension wall with uniform thickness extends from the second end of the second convex wall, and the thickness of the sharp corner is consistent with the thickness of the second extension wall.
[0006] The first extension wall has first convex walls at both ends, the second extension wall has second convex walls at both ends, and the first extension wall, the first convex wall, the second extension wall and the second convex wall form a light refraction surface.
[0007] The thickness of the sharp corner is 2 mm, the thickness of the first extension wall and the second extension wall is 2 mm, and the thickness of the first convex wall gradually increases from 1.3 mm at the sharp corner to 2 mm toward the outside.
[0008] The wall thickness of the second convex wall gradually increases from 1.3 mm at the sharp corner to 2 mm toward the outside.
[0009] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a simple structure, and at the sharp corner of the light distribution mirror of the existing lamp, the wall thickness of the two side walls of the sharp corner, that is, the first convex wall and the second convex wall, is gradually reduced to achieve a gradual change in wall thickness from 2mm to 1.3mm, so that the wall thickness at the sharp corner is consistent with the basic wall thickness, avoiding the generation of shrinkage marks. The wall thickness at the sharp corner of the light distribution mirror of the lamp of this structure is consistent with the basic wall thickness, and no shrinkage marks will be generated, which is beneficial to the appearance of the lamp, and the utility model has a simple structure and is easy to form and realize. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a schematic diagram of the cross section of an existing photometric mirror;
[0011] Figure 2 The utility model is a three-dimensional Figure 1 ;
[0012] Figure 3 The utility model is a three-dimensional Figure 2 ;
[0013] Figure 4 It is a cross-sectional stereogram of the utility model;
[0014] Figure 5 It is a cross-sectional schematic diagram of the utility model;
[0015] Reference numerals:
[0016] 1. Sink marks;
[0017] 201 first convex wall; 202 second convex wall; 203 sharp corner;
[0018] 301 first extension wall; 302 second extension wall;
[0019] 4 refractive surface; 5 light distribution mirror body. DETAILED DESCRIPTION
[0020] In order to enable those skilled in the art to better understand the present invention and to more clearly define the scope of protection claimed by the present invention, the present invention is described in detail below with respect to certain specific embodiments of the present invention. It should be noted that the following are only certain specific implementation methods of the present invention, which are only part of the embodiments of the present invention, and the specific and direct description of the relevant structures is only for the convenience of understanding the present invention, and the specific features do not naturally and directly limit the scope of implementation of the present invention.
[0021] like Figure 1 As shown, the unit in the figure is mm, and the thickness at the sharp corner 203 is 6 mm, which will produce shrinkage marks and affect the appearance.
[0022] See attached Figure 2-5As shown, the utility model adopts the following technical scheme, a structure for preventing shrinkage marks of a light distribution mirror of an automobile lamp, comprising a light distribution mirror body 5, which is generally made of a light-transmitting material, and a first convex wall 201 and a second convex wall 202 are provided on the light distribution mirror body 5, and an angle is formed between the first convex wall 201 and the second convex wall 202, and the angle is an acute angle, so that a sharp angle 203 is formed at the connection where the first ends of the first convex wall 201 and the second convex wall 202 are connected to each other, and the wall thickness of the first convex wall 201 and / or the second convex wall 202 gradually decreases from the first end to the second end of the sharp angle 203 to prevent shrinkage marks.
[0023] A first extension wall 301 with uniform thickness extends from the second end of the first convex wall 201 . The thickness of the sharp corner 203 is consistent with that of the first extension wall 301 .
[0024] A second extension wall 302 with uniform thickness extends from the second end of the second convex wall 202. The thickness of the sharp corner 203 is consistent with that of the second extension wall 302.
[0025] The first extension wall 301 has first convex walls 201 integrally formed at both ends, and the second extension wall 302 has second convex walls 202 integrally formed at both ends. The first extension wall 301, the first convex wall 201, the second extension wall 302, and the second convex wall 202 form a refractive surface 4 or a light-transmitting surface for light, and the refractive surface 4 or the light-transmitting surface is in an annular structure, and the port at the outer end of the annular structure is closed to form a cavity in the annular structure.
[0026] The thickness of the sharp corner 203 is 2 mm, and the thickness of the first extension wall 301 and the second extension wall 302 is 2 mm. The thickness of the first convex wall 201 gradually increases from 1.3 mm at the sharp corner 203 to 2 mm toward the outside.
[0027] The wall thickness of the second convex wall 202 gradually increases from 1.3 mm at the sharp corner 203 to 2 mm toward the outside.
[0028] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a simple structure, and at the sharp corner 203 of the light distribution mirror of the existing lamp, the wall thickness of the two side walls of the sharp corner 203, that is, the first convex wall 201 and the second convex wall 202, is gradually reduced to achieve a gradual change in wall thickness from 2 mm to 1.3 mm, so that the wall thickness at the sharp corner 203 is consistent with the basic wall thickness, avoiding the generation of shrinkage marks. The wall thickness at the sharp corner 203 of the light distribution mirror of the lamp of this structure is consistent with the basic wall thickness, and no shrinkage marks will be generated, which is beneficial to the appearance of the lamp, and the utility model has a simple structure and is easy to form and realize.
[0029] The thickness reduction methods of the first convex wall 201 and the second convex wall 202 are: 1. One side surface is a plane and the other side surface is an inclined surface; 2. Both side surfaces are inclined surfaces.
[0030] The above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.
Claims
1. A structure for preventing shrinkage marks on a light distribution mirror of an automobile lamp, characterized in that: The invention comprises a lens body (5), wherein a first convex wall (201) and a second convex wall (202) are provided on the lens body (5), wherein an angle is formed between the first convex wall (201) and the second convex wall (202), and the angle is an acute angle, so that a sharp angle (203) is formed at the connection between the first ends of the first convex wall (201) and the second convex wall (202), and the wall thickness of the first convex wall (201) and / or the second convex wall (202) gradually decreases from the first end to the second end of the sharp angle (203) to prevent the generation of shrinkage marks.
2. The anti-shrinkage structure for the light distribution mirror of an automobile lamp according to claim 1, characterized in that: A first extension wall (301) with uniform thickness extends from the second end of the first convex wall (201).
3. The anti-shrinkage structure of the light distribution mirror of an automobile lamp according to claim 2, characterized in that: The thickness of the pointed corner (203) is consistent with the thickness of the first extending wall (301).
4. The anti-shrinkage structure for the light distribution mirror of an automobile lamp according to claim 2 or 3, characterized in that: A second extension wall (302) with uniform thickness extends from the second end of the second convex wall (202).
5. The anti-shrinkage structure for the light distribution mirror of an automobile lamp according to claim 4, characterized in that: The thickness of the pointed corner (203) is consistent with the thickness of the second extension wall (302).
6. The anti-shrinkage structure for the light distribution mirror of an automobile lamp according to claim 4, characterized in that: The first extension wall (301) is provided with first convex walls (201) at both ends, and the second extension wall (302) is bent and provided with second convex walls (202) at both ends. The first extension wall (301), the first convex wall (201), the second extension wall (302), and the second convex wall (202) form a light refraction surface (4) or a light transmission surface.
7. The anti-shrinkage structure for the light distribution mirror of an automobile lamp according to claim 5, characterized in that: The thickness of the pointed corner (203) is 2 mm, and the thickness of the first extension wall (301) and the second extension wall (302) are 2 mm.
8. The anti-shrinkage structure for the light distribution mirror of an automobile lamp according to claim 5, characterized in that: The wall thickness of the first convex wall (201) gradually increases from 1.3 mm to 2 mm from the sharp corner (203) toward the outside.
9. The anti-shrinkage structure for the light distribution mirror of an automobile lamp according to claim 5, characterized in that: The wall thickness of the second convex wall (202) gradually increases from 1.3 mm at the sharp corner to 2 mm towards the outside.