Thick-wall piece structure capable of achieving large-interval uniform light emitting of light source

Abstract

The thick-wall piece structure capable of achieving large-interval uniform light emitting of the light source comprises a thick-wall light guide body arranged in the horizontal direction, the upper surface and the lower surface of the thick-wall light guide body are parallel to the horizontal direction, and a first thick-wall light guide structure, a second thick-wall light guide structure and a third thick-wall light guide structure are arranged on the upper surface of the thick-wall light guide body. The first thick-wall light guide structure, the second thick-wall light guide structure and the third thick-wall light guide structure abut against one another in a face-to-face mode, and a three-face gathering-shaped area is formed in the middle positions of the first thick-wall light guide structure, the second thick-wall light guide structure and the third thick-wall light guide structure and divides collimated light rays emitted by the LED light source into three parts of light rays in a collimated mode. And the three parts of light rays are converged after being reflected for three times and are emitted in parallel to the light emitting direction. According to the thick-wall part structure capable of achieving large-interval uniform light emitting of the light source, the effect of uniform lighting under the condition of large interval of LEDs is achieved, cost is low, design is simple, and the requirement of an automobile factory can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lamps, in particular to a thick-walled component structure for realizing uniform light emission of light sources with large spacing. Background Art

[0002] In the field of automotive lighting optical design, concentrator-style thick-walled components are common. With the rapid development of the automotive industry, OEMs are demanding cost reductions in headlights. One effective solution is to reduce the number of LEDs. However, OEM customers also demand higher light efficiency, more uniform lighting, and aesthetically pleasing lighting effects.

[0003] To meet OEM requirements for uniform lighting, conventional thick-walled concentrator structures typically employ densely arranged LEDs to prevent dark areas between them. This approach increases product costs. Furthermore, if the interior space and PCB area of the lamp are limited, a high number of LEDs can lead to heat generation. In short, traditional methods cannot achieve the low-cost, high-efficiency requirements demanded by automotive manufacturers. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, the utility model proposes a thick-walled structure that realizes uniform light emission at large spacings of light sources, so as to achieve the effect of uniform lighting even when LEDs are at large spacings. It has low cost and simple design and can meet the requirements of automobile manufacturers.

[0006] According to the embodiment of the utility model, a thick-walled component structure for realizing uniform light emission of light sources at large intervals includes a thick-walled light guide body arranged in a horizontal direction, the upper and lower surfaces of the thick-walled light guide body are parallel to the horizontal direction, and a concentrator facing the LED light source is provided below the thick-walled light guide body. The upper surface of the thick-walled light guide body is provided with a first thick-walled light guide structure, a second thick-walled light guide structure and a third thick-walled light guide structure. The first thick-walled light guide structure, the second thick-walled light guide structure and the third thick-walled light guide structure are in contact with each other through surfaces and form a three-sided converging area at the middle position. The three-sided converging area divides the collimated light emitted by the LED light source into three equal parts of light. The three parts of light converge after three reflections and are emitted parallel to the light emitting direction.

[0007] The beneficial effect of the present invention is that, through the reflection of the thick-walled side wall, the light emitted by the point LED light source is reflected three times inside the thick wall and converted into collimated light with the same output direction, thereby increasing the lateral distance of the collimated light and achieving the effect of uniform lighting even when the LEDs are spaced apart at a large distance. The invention has low cost and simple design and can meet the requirements of automobile manufacturers.

[0008] According to one embodiment of the present invention, the convergent area includes a first reflection surface located on the first thick-walled light guide structure, a fourth reflection surface located on the second thick-walled light guide structure, and a seventh reflection surface located on the third thick-walled light guide structure, and the angles between the first reflection surface, the fourth reflection surface and the seventh reflection surface are 80 to 170°.

[0009] According to one embodiment of the present invention, the angle between the first reflecting surface and the horizontal direction is 40-50°, the angle between the fourth reflecting surface and the horizontal direction is 40-50°, and the angle between the seventh reflecting surface and the horizontal direction is 40-50°.

[0010] According to one embodiment of the present invention, the first thick-walled light guide structure is arranged at the left rear of the upper surface of the thick-walled light guide body, and the second thick-walled light guide structure is arranged at the left front of the upper surface of the thick-walled light guide body. The first thick-walled light guide structure and the second thick-walled light guide structure are symmetrically distributed in the front and rear directions of the upper surface of the thick-walled light guide body.

[0011] According to one embodiment of the present invention, the first thick-walled light guide structure also includes a second reflecting surface, which is adjacent to the first reflecting surface and the rear side surface of the thick-walled light guide body. A third reflecting surface is provided behind the left side surface of the thick-walled light guide body corresponding to the first thick-walled light guide structure. After part of the collimated light from the concentrator is incident on the first reflecting surface, the light is totally reflected to the second reflecting surface, and then the light is totally reflected to the third reflecting surface. After being collimated by the third reflecting surface, the light is parallel to the light emitting direction.

[0012] According to one embodiment of the present invention, the second thick-walled light guide structure also includes a fifth reflection surface, which is adjacent to the fourth reflection surface and the front side surface of the thick-walled light guide body. The left front side of the thick-walled light guide body corresponding to the second thick-walled light guide structure has a sixth reflection surface. After part of the collimated light from the concentrator enters the fourth reflection surface, the light is totally reflected to the fifth reflection surface, and then the light is totally reflected to the sixth reflection surface. After being collimated by the sixth reflection surface, the light is parallel to the light emitting direction.

[0013] According to one embodiment of the present invention, the third thick-walled light guide structure also includes an eighth reflection surface, which is adjacent to the seventh reflection surface and the upper surface of the thick-walled light guide body, and the seventh reflection surface is located directly to the right between the first reflection surface and the fourth reflection surface. A ninth reflection surface is provided below the thick-walled light guide body corresponding to the third thick-walled light guide structure. After part of the collimated light from the concentrator is incident on the seventh reflection surface, the light is totally reflected to the eighth reflection surface, and then the light is totally reflected to the ninth reflection surface. After being collimated by the ninth reflection surface, the light is parallel to the light emitting direction.

[0014] According to an embodiment of the present invention, the angle between the third reflecting surface and the horizontal direction is 40-50°.

[0015] According to an embodiment of the present invention, the angle between the sixth reflecting surface and the horizontal direction is 40-50°.

[0016] According to an embodiment of the present invention, the ninth reflecting surface is parallel to the eighth reflecting surface, and the angle between the ninth reflecting surface and the horizontal direction is 40-50°.

[0017] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the structure of the utility model Figure 3 ;

[0023] Figure 4 This is a schematic diagram of the structure of the utility model Figure 4 ;

[0024] Figure 5 This is a schematic diagram of the structure of the utility model Figure 5 ;

[0025] Figure 6 is a light path diagram of the first reflecting surface, the second reflecting surface, and the third reflecting surface;

[0026] Figure 7 is a light path diagram of the fourth reflecting surface, the fifth reflecting surface, and the sixth reflecting surface;

[0027] Figure 8This is the optical path diagram of the seventh reflecting surface, the eighth reflecting surface and the ninth reflecting surface.

[0028] The numbers in the figure are: 1. thick-walled light guide body; 2. first thick-walled light guide structure; 3. second thick-walled light guide structure; 4. third thick-walled light guide structure; 5. concentrator; a1. first reflection surface; a2. second reflection surface; a3. third reflection surface; b1. fourth reflection surface; b2. fifth reflection surface; b3. sixth reflection surface; c1. seventh reflection surface; c2. eighth reflection surface; c3. ninth reflection surface. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] In the description of the present invention, it should be understood that the terms "one side", "the other side", "both sides", "between", "middle", "upper end", "lower end", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections, and may be directly connected or indirectly connected through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] The thick-walled structure for achieving uniform light emission at large intervals from light sources according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] See Figures 1 to 8The thick-walled component structure of the present invention realizes uniform light emission of light sources with large spacing, includes a thick-walled light guide body 1 arranged in the horizontal direction, the upper and lower surfaces of the thick-walled light guide body 1 are parallel to the horizontal direction, and a concentrator 5 facing the LED light source is provided below the thick-walled light guide body 1. The upper surface of the thick-walled light guide body 1 is provided with a first thick-walled light guide structure 2, a second thick-walled light guide structure 3 and a third thick-walled light guide structure 4. The first thick-walled light guide structure 2, the second thick-walled light guide structure 3 and the third thick-walled light guide structure 4 are abutted against each other through surfaces and form a three-sided converging area at the middle position. The three-sided converging area collimates the collimated light emitted by the LED light source and divides it into three parts of light. The three parts of light converge after three reflections and are emitted parallel to the light emitting direction.

[0034] Preferably, the thick-walled light guide body 1, the first thick-walled light guide structure 2, the second thick-walled light guide structure 3, the third thick-walled light guide structure 4 and the concentrator 5 are an integrally formed structure, and the material of the integrally formed structure can be PC (polycarbonate) or PMMA (polymethyl methacrylate).

[0035] The concentrated area includes a first reflection surface a1 located on the first thick-walled light guide structure 2, a fourth reflection surface b1 located on the second thick-walled light guide structure 3, and a seventh reflection surface c1 located on the third thick-walled light guide structure 4. The angles between the first reflection surface a1, the fourth reflection surface b1 and the seventh reflection surface c1 are 80 to 170°.

[0036] The angle between the first reflecting surface a1 and the horizontal direction is 40-50°, the angle between the fourth reflecting surface b1 and the horizontal direction is 40-50°, and the angle between the seventh reflecting surface c1 and the horizontal direction is 40-50°. Preferably, the angle between the first reflecting surface a1 and the horizontal direction is 45°; preferably, the angle between the fourth reflecting surface b1 and the horizontal direction is 45°; preferably, the angle between the seventh reflecting surface c1 and the horizontal direction is 45°.

[0037] The first thick-walled light guide structure 2 is arranged at the left rear of the upper surface of the thick-walled light guide body 1, and the second thick-walled light guide structure 3 is arranged at the left front of the upper surface of the thick-walled light guide body 1. The first thick-walled light guide structure 2 and the second thick-walled light guide structure 3 are symmetrically distributed in the front and back directions of the upper surface of the thick-walled light guide body 1.

[0038] Preferably, the thick-walled light guide body 1 is a flat rectangular parallelepiped structure, a slot is provided at the middle position on the lower left side of the thick-walled light guide body 1 , the left side and the bottom of the slot are open, and a concentrator 5 is provided on the top surface of the slot.

[0039] The first thick-walled light guide structure 2 also includes a second reflective surface a2, which is adjacent to the first reflective surface a1 and the rear side of the thick-walled light guide body 1. A third reflective surface a3 is located behind the left side of the thick-walled light guide body 1, corresponding to the first thick-walled light guide structure 2. After light enters the first reflective surface a1, it is totally reflected onto the second reflective surface a2, and then onto the third reflective surface a3. The partially collimated light from the concentrator 5 is collimated by the third reflective surface a3 and parallel to the light output direction. Preferably, the angle between the first reflective surface a1 and the second reflective surface a2 is 90°, and the angle between the third reflective surface a3 and the horizontal direction is 40-50°. Preferably, the angle between the third reflective surface a3 and the horizontal direction is 45°, thereby better achieving total reflection of the collimated light.

[0040] The second thick-walled light guide structure 3 also includes a fifth reflective surface b2, which is adjacent to the fourth reflective surface b1 and the front side of the thick-walled light guide body 1. A sixth reflective surface b3 is located on the front left side of the thick-walled light guide body 1, corresponding to the second thick-walled light guide structure 3. After light enters the fourth reflective surface b1, it is totally reflected onto the fifth reflective surface b2 and then onto the sixth reflective surface b3. The partially collimated light from the concentrator 5 is collimated by the sixth reflective surface b3 and aligned parallel to the light output direction. Preferably, the angle between the fourth reflective surface b1 and the fifth reflective surface b2 is 90°, and the angle between the sixth reflective surface b3 and the horizontal direction is 40-50°. Preferably, the angle between the sixth reflective surface b3 and the horizontal direction is 45°, thereby better achieving total reflection of the collimated light.

[0041] The third thick-walled light guide structure 4 also includes an eighth reflective surface c2, which is adjacent to the seventh reflective surface c1 and the upper surface of the thick-walled light guide body 1. The seventh reflective surface c1 is located directly to the right between the first reflective surface a1 and the fourth reflective surface b1. Below the thick-walled light guide body 1, corresponding to the third thick-walled light guide structure 4, is a ninth reflective surface c3. After light enters the seventh reflective surface c1, a portion of the collimated light from the concentrator 5 is totally reflected onto the eighth reflective surface c2. The light is then totally reflected onto the ninth reflective surface c3, which is the right side of the notch. After being collimated by the ninth reflective surface c3, the light is parallel to the light output direction. Preferably, the angle between the seventh reflective surface c1 and the eighth reflective surface c2 is 90°, and the ninth reflective surface c3 is parallel to the eighth reflective surface c2, thereby better achieving total reflection of the collimated light. The ninth reflective surface c3 forms an angle of 40-50° with the horizontal, preferably 45°.

[0042] The reflective surfaces around the concentrator 5 (the first reflective surface a1, the second reflective surface a2, the third reflective surface a3, the fourth reflective surface b1, the fifth reflective surface b2, the sixth reflective surface b3, the seventh reflective surface c1, the eighth reflective surface c2, and the ninth reflective surface c3) can collimate the collimated light emitted by the LED light source into three equal parts, thereby fully utilizing the collimated light emitted by the concentrator 5. Of the light divided into three parts, one part will pass through the first reflective surface a1, the second reflective surface a2, and the third reflective surface a3 in sequence, one part will pass through the fourth reflective surface b1, the fifth reflective surface b2, and the sixth reflective surface b3 in sequence, and one part will pass through the seventh reflective surface c1, the eighth reflective surface c2, and the ninth reflective surface c3 in sequence. After the three parts of light are reflected three times, they converge, thereby improving the overall uniformity of the light-emitting surface. The light collimated by the concentrator 5 is laterally diffused in the left and right directions by the reflective surfaces in the left and right directions, thereby increasing the range of light emission of a single LED light source, thereby achieving the effect of maintaining uniform light emission even when the LED light sources are widely spaced. After the light enters the structure through the concentrator 5, it is totally reflected inside, thereby improving the light efficiency.

[0043] The collimated light rays after the three parts of total reflection are gathered together and emitted parallel to the light output direction.

[0044] This thick-walled structure, which achieves uniform illumination across widely spaced light sources, diffuses light that would otherwise be limited to the opening of the concentrator 5, increasing the left-right width of the LED light source. This allows for uniform illumination even when the LEDs are spaced far apart. The right side of the thick-walled light guide body 1 serves as the light-emitting surface, which can be customized with patterns such as corn kernels or stripes for even more uniform illumination.

[0045] The light color of the LED light source is not limited. The same concentrator 5 can select single-core or multi-core LED light sources of different light colors as needed. As long as it is reasonably combined with electronic design, the optical form of the utility model can be flexibly applied to various scenarios.

[0046] The focal length and size of the concentrator 5 can be adjusted according to actual usage requirements. Individual thick-walled ones can be arranged horizontally or arranged according to the tilted shape of the car's corner lights. By adjusting the spacing, uniform lighting can be achieved at different LED light source spacings, and uniform lighting at large spacings in various shapes can be achieved.

[0047] The structure of the utility model can be used in conjunction with other structures in a vehicle lamp, and can be used in conjunction with optical solutions such as thin-walled parts, thick-walled parts, and scattering materials in actual design.

[0048] The above are only preferred specific implementation methods of the present invention, but the protection scope of the present invention is not limited to them. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A thick-walled structure for achieving uniform light emission at large intervals, characterized by: The invention comprises a thick-walled light guide body (1) arranged in a horizontal direction, wherein the upper and lower surfaces of the thick-walled light guide body (1) are parallel to the horizontal direction, and a concentrator (5) facing the LED light source is provided below the thick-walled light guide body (1), and a first thick-walled light guide structure (2), a second thick-walled light guide structure (3) and a third thick-walled light guide structure (4) are provided on the upper surface of the thick-walled light guide body (1), wherein the first thick-walled light guide structure (2), the second thick-walled light guide structure (3) and the third thick-walled light guide structure (4) are mutually abutted by surfaces and form a three-sided converging area at the middle position, wherein the three-sided converging area collimates the collimated light emitted by the LED light source into three equal parts of light, and the three parts of light converge after three reflections and are emitted parallel to the light emitting direction.

2. The thick-walled structure for achieving uniform light emission with large spacing between light sources according to claim 1 is characterized in that: The clustered area comprises a first reflection surface (a1) located on the first thick-walled light-guiding structure (2), a fourth reflection surface (b1) located on the second thick-walled light-guiding structure (3), and a seventh reflection surface (c1) located on the third thick-walled light-guiding structure (4), wherein the angles between the first reflection surface (a1), the fourth reflection surface (b1), and the seventh reflection surface (c1) are 80 to 170 degrees.

3. The thick-walled structure for achieving uniform light emission with large spacing between light sources according to claim 2, characterized in that: The angle between the first reflecting surface (a1) and the horizontal direction is 40-50°, the angle between the fourth reflecting surface (b1) and the horizontal direction is 40-50°, and the angle between the seventh reflecting surface (c1) and the horizontal direction is 40-50°.

4. The thick-walled structure for achieving uniform light emission with large spacing between light sources according to claim 2, characterized in that: The first thick-walled light guide structure (2) is arranged at the left rear of the upper surface of the thick-walled light guide body (1), and the second thick-walled light guide structure (3) is arranged at the left front of the upper surface of the thick-walled light guide body (1). The first thick-walled light guide structure (2) and the second thick-walled light guide structure (3) are symmetrically distributed in the front-to-back direction of the upper surface of the thick-walled light guide body (1).

5. The thick-walled structure for achieving uniform light emission with large spacing between light sources according to claim 4 is characterized in that: The first thick-walled light guide structure (2) also includes a second reflecting surface (a2), which is adjacent to the first reflecting surface (a1) and the rear side surface of the thick-walled light guide body (1). A third reflecting surface (a3) is provided behind the left side surface of the thick-walled light guide body (1) corresponding to the first thick-walled light guide structure (2). After part of the collimated light from the concentrator (5) is incident on the first reflecting surface (a1), the light is totally reflected to the second reflecting surface (a2), and then totally reflected to the third reflecting surface (a3). After being collimated by the third reflecting surface (a3), the light is parallel to the light emitting direction.

6. The thick-walled structure for achieving uniform light emission with large spacing between light sources according to claim 4, characterized in that: The second thick-walled light guide structure (3) further includes a fifth reflection surface (b2), the fifth reflection surface (b2) being adjacent to the fourth reflection surface (b1) and the front side surface of the thick-walled light guide body (1), and a sixth reflection surface (b3) being provided in front of the left side of the thick-walled light guide body (1) corresponding to the second thick-walled light guide structure (3). After part of the collimated light from the concentrator (5) is incident on the fourth reflection surface (b1), the light is totally reflected to the fifth reflection surface (b2), and then totally reflected to the sixth reflection surface (b3). After being collimated by the sixth reflection surface (b3), the light is parallel to the light emitting direction.

7. The thick-walled structure for achieving uniform light emission with large spacing between light sources according to claim 4, characterized in that: The third thick-walled light guide structure (4) also includes an eighth reflection surface (c2), which is adjacent to the seventh reflection surface (c1) and the upper surface of the thick-walled light guide body (1), and the seventh reflection surface (c1) is located directly to the right between the first reflection surface (a1) and the fourth reflection surface (b1). A ninth reflection surface (c3) is provided below the thick-walled light guide body (1) corresponding to the third thick-walled light guide structure (4). After part of the collimated light from the concentrator (5) is incident on the seventh reflection surface (c1), the light is totally reflected to the eighth reflection surface (c2), and then totally reflected to the ninth reflection surface (c3). After being collimated by the ninth reflection surface (c3), the light is parallel to the light output direction.

8. The thick-walled structure for achieving uniform light emission with large spacing between light sources according to claim 5, characterized in that: The angle between the third reflecting surface (a3) and the horizontal direction is 40-50 degrees.

9. The thick-walled structure for achieving uniform light emission with large spacing between light sources according to claim 6, characterized in that: The angle between the sixth reflecting surface (b3) and the horizontal direction is 40-50 degrees.

10. The thick-walled structure for achieving uniform light emission with large spacing between light sources according to claim 7, characterized in that: The ninth reflecting surface (c3) and the eighth reflecting surface (c2) are parallel to each other, and the angle between the ninth reflecting surface (c3) and the horizontal direction is 40 to 50 degrees.

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