Thick-wall part structure and vehicle lamp comprising same

Abstract

The utility model relates to the technical field of vehicle lamp illumination, in particular to a thick-wall part structure and a vehicle lamp comprising the thick-wall part structure. A thick-wall piece structure comprises a thick-wall piece body, one end of the thick-wall piece body is a light inlet end, the other end of the thick-wall piece body is a light outlet end, a light guide structure is arranged on the thick-wall piece body in the vertical direction of the light inlet end, and the light guide structure comprises a first total reflection part. The first total reflection part is a triangular corrugated surface in which a first total reflection surface and a second total reflection surface are alternately arranged and form a certain included angle, a second total reflection part and a third total reflection part are sequentially connected below two sides of the triangular corrugated surface, and a fourth total reflection part is formed at the outer side ends of the second total reflection part and the third total reflection part. Light is emitted after multiple times of reflection through the light guide structure on the thick-wall piece body, the number of LED lamps is reduced, the light emitting area is enlarged by at least two times compared with the prior art, cost is reduced, lighting is even and efficient, visual transparency is achieved, and universality is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lamp lighting, in particular to a thick-walled component structure and a vehicle lamp comprising the thick-walled component structure. Background Art

[0002] With the rapid development of automotive lighting technology and consumers' increasing demand for lighting effects, production costs and efficiency have become urgent issues for automotive lighting suppliers. Chinese patent publication number CN118564856A discloses a wide-angle lens and an automotive optical module using it. Some light is emitted directly from the second light-emitting surface, while some light is reflected twice and then emitted from the first light-emitting surface. This can meet the lighting requirements for uniformity when light sources are arranged at large intervals. However, this can result in a bright center and dark edges, resulting in overall uneven lighting.

[0003] In the existing technology, a large number of LED lamps are used to achieve a uniform lighting effect, but so many LED lamps will lead to increased costs, complex circuit design and increased thermal risks. Summary of the Invention

[0004] The technical problem to be solved by the present invention is: to provide a thick-walled part structure in order to solve the problems existing in the prior art in the above-mentioned background technology.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a thick-walled part structure, including a thick-walled part body, one end of the thick-walled part body is a light input end, and the other end is a light output end, a light-guiding structure is provided on the thick-walled part body in the vertical direction of the light input end, and the light-guiding structure includes a first total reflection part, the first total reflection part is a triangular corrugated surface composed of alternating first total reflection surfaces and second total reflection surfaces with a certain angle between the two, the second total reflection part and the third total reflection part are connected in sequence below the two sides of the triangular corrugated surface, and the outer ends of the second total reflection part and the third total reflection part form a fourth total reflection part.

[0006] Furthermore, the second total reflection portion is composed of a third total reflection surface and a fourth total reflection surface at a certain angle, the third total reflection portion is composed of a fifth total reflection surface and a sixth total reflection surface at a certain angle, and the fourth total reflection portion is composed of a seventh total reflection surface and an eighth total reflection surface at a certain angle.

[0007] Furthermore, the sum of half of the projected areas of the first and second total reflection surfaces on the yz plane and the projected areas of the fourth, sixth and eighth total reflection surfaces on the yz plane is half of the light output end area.

[0008] Furthermore, the angle between the first total reflection surface and the second total reflection surface is 80°~100°, the angle between the first total reflection surface and the direction of the incident light is 40°~50°, and the angles with the xy plane, yz plane and xz plane are all 45°; the angle between the second total reflection surface and the direction of the incident light is 40°~50°, and the angles with the xy plane, yz plane and xz plane are 45°; the projection areas of the first total reflection surface and the second total reflection surface on the xz plane are the same.

[0009] Furthermore, the angles between the third total reflection surface and the xy plane, yz plane and xz plane are all 45°, and the angle between the third total reflection surface and the direction of the incident light is 40°~50°; the angles between the fourth total reflection surface and the yz plane and xz plane are all 45°, the angle between the third total reflection surface and the xy plane is 90°, and the angle between the third total reflection surface and the direction of the incident light is 40°~50°; the projection areas of the third total reflection surface and the fourth total reflection surface on the xz plane are the same.

[0010] Furthermore, the angles between the fifth total reflection surface and the xy plane, yz plane and xz plane are all 45°, and the angle between the fifth total reflection surface and the direction of the incident light is 40°~50°; the angles between the sixth total reflection surface and the yz plane and xz plane are all 45°, the angle between the sixth total reflection surface and the xy plane is 90°, and the angle between the sixth total reflection surface and the direction of the incident light is 40°~50°; the projection areas of the fifth total reflection surface and the sixth total reflection surface on the xz plane are the same.

[0011] Furthermore, the angles between the seventh total reflection surface and the xy plane, yz plane and xz plane are all 45°, and the angle between the seventh total reflection surface and the direction of the incident light is 40°~50°; the angle between the eighth total reflection surface and the yz plane and xz plane is 45°, the angle between the eighth total reflection surface and the xy plane is 90°, and the angle between the eighth total reflection surface and the direction of the incident light is 40°~50°; the projection areas of the seventh total reflection surface and the eighth total reflection surface on the xz plane are the same.

[0012] Furthermore, the sum of the distances between the projections of the seventh total reflection surface and the eighth total reflection surface in the vertical direction is greater than or equal to the light output height of the light output end.

[0013] Furthermore, the first total reflection surface, the second total reflection surface, the third total reflection surface, the fourth total reflection surface, the fifth total reflection surface, the sixth total reflection surface, the seventh total reflection surface and the eighth total reflection surface are all cut surfaces; and a corn kernel pattern is provided on the end surface of the light emitting end.

[0014] A vehicle lamp is also provided, comprising the thick-walled component structure described in the above solution.

[0015] The beneficial effects of the present invention are as follows: the present invention emits light after multiple reflections through the light-guiding structure on the thick-walled body, thereby reducing the number of LED lamps, and the light-emitting area is expanded by at least twice compared with the existing technology, thereby reducing costs, lighting evenly and efficiently, and being visually transparent and universal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural diagram of embodiment 1 of the present utility model.

[0018] Figure 2 This is a light path structure diagram of the first embodiment of the present utility model.

[0019] Figure 3 It is an enlarged structural diagram of the first total reflection portion in Example 1 of the present utility model.

[0020] Figure 4 yes Figure 3 side view.

[0021] Figure 5 It is an enlarged structural diagram of the second reflecting portion in the first embodiment of the present utility model.

[0022] Figure 6 It is an enlarged structural diagram of the third reflecting portion in the first embodiment of the present utility model.

[0023] Figure 7 It is an enlarged structural diagram of the fourth reflecting portion in the first embodiment of the present utility model.

[0024] Figure 8 It is a structural diagram of the second embodiment of the present utility model.

[0025] Figure 9 yes Figure 8 main view.

[0026] Figure 10 yes Figure 8 rear view.

[0027] Figure 11 yes Figure 8 Top view of .

[0028] Figure 12 yes Figure 8 Bottom view of .

[0029] Figure 13 yes Figure 8 side view.

[0030] Figure 14 It is a structural diagram of embodiment 3 of the present utility model.

[0031] Figure 15 This is a lighting effect diagram of the vehicle lamp of the fourth embodiment of the present utility model.

[0032] In the figure: 1. thick-walled part body; 11. light input end; 12. light output end; 13. light guide structure; 131. first total reflection part; 1311. first total reflection surface; 1312. second total reflection surface; 132. second total reflection part; 1321. third total reflection surface; 1322. fourth total reflection surface; 133. third total reflection part; 1331. fifth total reflection surface; 1332. sixth total reflection surface; 134. fourth total reflection part; 1341. seventh total reflection surface; 1342. eighth total reflection surface; 135. fifth total reflection part. DETAILED DESCRIPTION

[0033] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0034] Example 1

[0035] like Figure 1 As shown, a thick-walled part structure includes a thick-walled part body 1, one end of the thick-walled part body 1 is a light input end 11, and the other end is a light output end 12, and a light-guiding structure 13 is provided in the vertical direction of the light input end on the thick-walled part body 1, and the light-guiding structure 13 includes a first total reflection part 131, a second total reflection part 132, a third total reflection part 133 and a fourth total reflection part 134, the first total reflection part 131 is a triangular corrugated surface composed of alternating first total reflection surfaces 1311 and second total reflection surfaces 1312 with a certain angle between the two, the second total reflection part 132 and the third total reflection part 133 are connected in sequence below both sides of the triangular corrugated surface, and the outer ends of the second total reflection part 132 and the third total reflection part 133 form the fourth total reflection part 134. Specifically, the second total reflection portion 132 is formed by a third total reflection surface 1321 and a fourth total reflection surface 1322 at a certain angle, the third total reflection portion 133 is formed by a fifth total reflection surface 1331 and a sixth total reflection surface 1332 at a certain angle, and the fourth total reflection portion 134 is formed by a seventh total reflection surface 1341 and an eighth total reflection surface 1342 at a certain angle. The sum of half the projected area of ​​the first total reflection surface 1311 and the second total reflection surface 1342 on the yz plane and the projected areas of the fourth total reflection surface 1322, the sixth total reflection surface 1332, and the eighth total reflection surface 1342 on the yz plane is half the area of ​​the light emitting end 12; the purpose is to make the light from the light emitting end 12 richer in the vertical direction and to ensure uniform lighting in the vertical direction.

[0036] like Figure 2As shown, LED light enters the thick-walled component body 1 through the light input end 11, is totally reflected by the multiple total reflection parts of the light guide structure 13, and is emitted from the light output end 12; wherein, a portion of the light enters the light guide structure 13, is totally reflected by the first total reflection surface 1311 to the second total reflection surface 1312, or the second total reflection surface 1312 is totally reflected to the first total reflection surface 1311, and is emitted from the light output end 12 after being totally reflected by the first total reflection surface 1311 or the second total reflection surface 1312; a portion of the light enters the light guide structure 13, is totally reflected by the third total reflection surface The light is totally reflected by the surface 1321 to the fourth total reflection surface 1322, and then emitted from the light output end 12 after being totally reflected by the fourth total reflection surface 1322. A portion of the light enters the light guide structure 13, is totally reflected by the fifth total reflection surface 1331 to the sixth total reflection surface 1332, and then emitted from the light output end 12 after being totally reflected by the sixth total reflection surface 1332. Another portion of the light enters the light guide structure 13, is totally reflected by the seventh total reflection surface 1341 to the eighth total reflection surface 1342, and then emitted from the light output end 12 after being totally reflected by the eighth total reflection surface 1342. The light is emitted after undergoing two total reflections in each of the four total reflection portions. Each portion has the same optical path, the same energy loss, uniform lighting, and a wider luminous width.

[0037] like Figure 1 、 Figure 3 and Figure 4 As shown, the angle between the first total reflection surface 1311 and the second total reflection surface 1312 is 80°~100°, the angle between the first total reflection surface 1311 and the direction of the incident light is 40°~50°, and the angles with the xy plane, yz plane and xz plane are all 45°; the angle between the second total reflection surface 1312 and the direction of the incident light is 40°~50°, and the angles with the xy plane, yz plane and xz plane are 45°; the projection areas of the first total reflection surface 1311 and the second total reflection surface 1312 on the xz plane are the same. When light is emitted from the denser medium n to the less dense medium n1, the refraction angle will be greater than the incident angle. Assuming the critical angle C, n = n1 / sinC. The material of the thick-walled component body 1 is usually PMMA or PC, so the first total reflection surface 1311 and the second total reflection surface 1312 form a 45-degree angle with the xz plane, yz plane and xy plane to achieve total reflection.

[0038] like Figure 1 and Figure 5 As shown, the angles between the third total reflection surface 1321 and the xy plane, yz plane and xz plane are all 45°, and the angle between the third total reflection surface 1321 and the direction of the incident light is 40°~50°; the angles between the fourth total reflection surface 1322 and the yz plane and xz plane are all 45°, the angle between the third total reflection surface 1321 and the fourth total reflection surface 1322 and the direction of the incident light is 40°~50°; the projected areas of the third total reflection surface 1321 and the fourth total reflection surface 1322 on the xz plane are the same.

[0039] like Figure 1and Figure 6 As shown, the angles between the fifth total reflection surface 1331 and the xy plane, yz plane and xz plane are all 45°, and the angle between the fifth total reflection surface 1331 and the direction of the incident light is 40°~50°; the angles between the sixth total reflection surface 1332 and the yz plane and xz plane are all 45°, the angle between the sixth total reflection surface 1332 and the xy plane is 90°, and the angle between the fifth total reflection surface 1331 and the sixth total reflection surface 1332 and the direction of the incident light is 40°~50°; the projection areas of the fifth total reflection surface 1331 and the sixth total reflection surface 1332 on the xz plane are the same.

[0040] like Figure 1 and 7 As shown, the seventh total reflection surface 1341 forms an angle of 45° with the xy plane, the yz plane, and the xz plane, and forms an angle of 40° to 50° with the direction of the incident light; the eighth total reflection surface 1342 forms an angle of 45° with the yz plane and the xz plane, forms an angle of 90° with the xy plane, and forms an angle of 40° to 50° with the direction of the incident light; the vertical projection distances of the seventh total reflection surface 1341 and the eighth total reflection surface 1342 are the same. Preferably, the sum of the vertical projection distances of the seventh total reflection surface 1341 and the eighth total reflection surface 1342 is greater than or equal to the light output height of the light output end 12, in order to make the vertical light output of the light output end 12 richer and to achieve uniform lighting in the vertical direction.

[0041] In this embodiment, the first total reflection surface 1311, the second total reflection surface 1312, the third total reflection surface 1321, the fourth total reflection surface 1322, the fifth total reflection surface 1331, the sixth total reflection surface 1332, the seventh total reflection surface 1341, and the eighth total reflection surface 1342 are all cross-sectional surfaces and are quadrilaterals. They can also be configured as other shapes such as triangles. Light distribution patterns or textures can be designed as needed. A corn kernel pattern is provided on the end surface of the light outlet end 12. Users can add other types of patterns or textures to the light outlet of the thick-walled component as needed.

[0042] Example 2

[0043] like Figures 8 to 13 As shown, the difference from the first embodiment is that a row of evenly distributed light guide structures 13 is provided at the light incident end 11 of the thick-walled member body 1 to meet the needs of larger vehicle lights.

[0044] Example 3

[0045] like Figure 14 As shown, the difference from the first embodiment is that a fifth total reflection portion 135 is provided between the second total reflection portion 132 and the third total reflection portion 133 on the light guide structure 13. The proportion relationship and the size of each total reflection unit surface can be adjusted according to actual application requirements.

[0046] Example 4

[0047] A vehicle lamp comprises the thick-walled structure of embodiment one, embodiment two or embodiment three, an LED light source and a concentrator, wherein the LED light source is not limited in color and can be a single color of red, white, yellow or a combination of two of these colors. The concentrator can be a circular concentrator, a nested concentrator, etc., and can also be added with structures such as patterned leather grain according to the uniformity requirements. The light of the concentrator is controlled in different areas, that is, the third total reflection surface 1321 and the fourth total reflection surface 1322 are the parts with relatively strong energy in the middle of the concentrator (relatively weaker on the sides), so a diffusion pattern can be added to its total reflection surface to achieve the light mixing effect of the concentrator and evenly distribute the energy. The thick-walled part body 1 can be made of transparent materials such as PMMA or PC, and the depth and length of the entire thick-walled part body 1 can be adjusted and transformed according to the shape of the lamp. Such as Figure 15 The lighting effect diagram of the vehicle lamp of this embodiment is shown, and the lighting is uniform and visually transparent.

[0048] Based on the above-mentioned ideal embodiment of the present invention, and in accordance with the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A thick-walled component structure, comprising a thick-walled component body (1), wherein one end of the thick-walled component body (1) is a light input end (11), and the other end is a light output end (12), characterized in that: A light-guiding structure (13) is provided in the vertical direction of the light-entering end of the thick-walled member body (1), and the light-guiding structure (13) includes a first total reflection portion (131), and the first total reflection portion (131) is a triangular corrugated surface in which a first total reflection surface (1311) and a second total reflection surface (1312) are alternately arranged and a certain angle is formed between the two surfaces, and a second total reflection portion (132) and a third total reflection portion (133) are sequentially connected below the two sides of the triangular corrugated surface, and the outer ends of the second total reflection portion (132) and the third total reflection portion (133) form a fourth total reflection portion (134).

2. The thick-walled part structure according to claim 1, characterized in that: The second total reflection portion (132) is composed of a third total reflection surface (1321) and a fourth total reflection surface (1322) at a certain angle, the third total reflection portion (133) is composed of a fifth total reflection surface (1331) and a sixth total reflection surface (1332) at a certain angle, and the fourth total reflection portion (134) is composed of a seventh total reflection surface (1341) and an eighth total reflection surface (1342) at a certain angle.

3. The thick-walled part structure according to claim 2, characterized in that: The sum of half the projected areas of the first total reflection surface (1311) and the second total reflection surface (1312) on the yz plane and the projected areas of the fourth total reflection surface (1322), the sixth total reflection surface (1332) and the eighth total reflection surface (1342) on the yz plane is half the area of ​​the light output end (12).

4. The thick-walled part structure according to claim 2, characterized in that: The angle between the first total reflection surface (1311) and the second total reflection surface (1312) is 80° to 100°, the angle between the first total reflection surface (1311) and the direction of the incident light is 40° to 50°, and the angles between the first total reflection surface (1311) and the xy plane, the yz plane, and the xz plane are all 45°; the angle between the second total reflection surface (1312) and the direction of the incident light is 40° to 50°, and the angles between the second total reflection surface (1312) and the xy plane, the yz plane, and the xz plane are all 45°; the projection areas of the first total reflection surface (1311) and the second total reflection surface (1312) on the xz plane are the same.

5. The thick-walled part structure according to claim 2, characterized in that: The included angles between the third total reflection surface (1321) and the xy surface, the yz surface and the xz surface are all 45°, and the included angle between the third total reflection surface (1321) and the incident light direction is 40° to 50°; the included angles between the fourth total reflection surface (1322) and the yz surface and the xz surface are all 45°, the included angle between the third total reflection surface (1321) and the fourth total reflection surface (1322) and the incident light direction is 40° to 50°; the projected areas of the third total reflection surface (1321) and the fourth total reflection surface (1322) on the xz surface are the same.

6. The thick-walled component structure according to claim 2, characterized in that: The fifth total reflection surface (1331) has an included angle of 45° with the xy plane, the yz plane and the xz plane, and an included angle of 40° to 50° with the direction of the incident light; the sixth total reflection surface (1332) has an included angle of 45° with the yz plane and the xz plane, an included angle of 90° with the xy plane, and an included angle of 40° to 50° with the direction of the incident light; the fifth total reflection surface (1331) and the sixth total reflection surface (1332) have the same projected area on the xz plane.

7. The thick-walled part structure according to claim 2, characterized in that: The seventh total reflection surface (1341) has an angle of 45° with the xy surface, the yz surface and the xz surface, and an angle of 40° to 50° with the direction of the incident light; the eighth total reflection surface (1342) has an angle of 45° with the yz surface and the xz surface, an angle of 90° with the xy surface, and an angle of 40° to 50° with the direction of the incident light; the seventh total reflection surface (1341) and the eighth total reflection surface (1342) have the same projected area on the xz surface.

8. The thick-walled component structure according to claim 7, characterized in that: The sum of the distances projected in the vertical direction between the first total reflection surface (1311) and the seventh total reflection surface (1341) is greater than or equal to the light output height of the light output end (12).

9. The thick-walled component structure according to claim 1, characterized in that: The first total reflection surface (1311), the second total reflection surface (1312), the third total reflection surface (1321), the fourth total reflection surface (1322), the fifth total reflection surface (1331), the sixth total reflection surface (1332), the seventh total reflection surface (1341) and the eighth total reflection surface (1342) are all cross-sectional surfaces; and a corn kernel pattern is provided on the end surface of the light emitting end (12).

10. A vehicle lamp, characterized in that: The thick-walled part structure comprises the thick-walled part structure according to any one of claims 1 to 9.

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