Thick-wall piece capable of increasing light emitting area of car lamp

Abstract

The utility model belongs to the technical field of car lamps, and particularly relates to a thick-wall piece for increasing the light-emitting area of a car lamp, which comprises a thick-wall piece body and a light-emitting part connected with one end of the thick-wall piece body. The thick-wall piece body is provided with a light intensifying part, and the light intensifying part comprises a first reflecting part and a second reflecting part; a first reflecting surface and a second reflecting surface are respectively arranged on two sides of the first reflecting part in parallel, the second reflecting part is slide-shaped, and a third reflecting surface and a fourth reflecting surface are sequentially arranged on the inclined surface of the second reflecting part from bottom to top; a part of incident light is emitted to the first reflecting surface, is emitted to the second reflecting surface after being totally reflected by the first reflecting surface, and is emitted out of the light emitting part after being totally reflected by the second reflecting surface; the other part of incident light is emitted to the third reflecting surface, is emitted to the fourth reflecting surface after being totally reflected by the third reflecting surface, and is emitted out of the light emitting part after being totally reflected by the fourth reflecting surface; the area of the light emitting surface is increased by arranging the intensifying part to totally reflect light for many times, and the lighting effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicle lamps, and particularly relates to a thick-walled component for increasing the light-emitting area of ​​a vehicle lamp. Background Art

[0002] With the rapid development of automobiles, car lights have also developed rapidly, and consumers are pursuing higher and higher lighting effects for car lights. In order to increase the lighting area of ​​car lights, the cost and lighting efficiency of car lights will inevitably be affected. Therefore, production cost and lighting efficiency of car lights are also issues that car light suppliers need to solve urgently.

[0003] Existing solutions require the use of a large number of LEDs to illuminate a larger area, which complicates circuit design, reduces lighting efficiency, and increases costs while increasing heat generation. Automakers hope to reduce costs and the number of LED particles, allowing a single LED to control and illuminate a larger area. Utility Model Content

[0004] The purpose of the utility model is to provide a thick-walled part that increases the light-emitting area of ​​a car lamp, so as to solve the technical problem that the lighting efficiency of the car lamp is reduced due to the use of a large number of light sources to increase the bright area, and to achieve the purpose of extending the width of the light after total reflection to increase the light-emitting area.

[0005] In order to solve the above technical problems, the utility model provides a thick-walled member for increasing the light output area of ​​a vehicle lamp, comprising: a thick-walled member body and a light output portion, wherein the light output portion is connected to one end of the thick-walled member body;

[0006] The thick-walled member body is provided with a light-enhancing portion, the light-enhancing portion comprising a first reflecting portion and a second reflecting portion, the first reflecting portion and the second reflecting portion being sequentially connected along the length direction of the light-emitting portion;

[0007] A first reflecting surface and a second reflecting surface are respectively provided in parallel on both sides of the first reflecting portion, the first reflecting surface and the second reflecting surface are both inclined relative to the horizontal direction, and one end of the first reflecting portion is connected to the light emitting portion;

[0008] The second reflecting portion is in a slide shape, and the inclined surface of the second reflecting portion is provided with a third reflecting surface and a fourth reflecting surface in sequence from bottom to top, and the top end of the second reflecting portion is connected to the light emitting portion;

[0009] Part of the incident light is emitted toward the first reflecting surface, is totally reflected by the first reflecting surface, and is emitted toward the second reflecting surface, and is totally reflected by the second reflecting surface and then exits the light exit portion;

[0010] Another part of the incident light is emitted toward the third reflecting surface, is emitted toward the fourth reflecting surface after being totally reflected by the third reflecting surface, and is emitted from the light exiting portion after being totally reflected by the fourth reflecting surface.

[0011] Furthermore, the projection lengths of the first reflecting surface and the second reflecting surface in the horizontal direction are both A.

[0012] Furthermore, the projection lengths of the third reflecting surface and the fourth reflecting surface in the horizontal direction are both B.

[0013] Furthermore, the light-increasing portion further includes a condenser, the condenser is connected to the other end of the first reflecting portion, and a projection length of the condenser in the horizontal direction is L;

[0014] Among them, L≤A, L≤B.

[0015] Furthermore, the angle between the first reflecting surface and the second reflecting surface and the horizontal direction is 40° to 50°.

[0016] Furthermore, the angle between the third reflecting surface and the fourth reflecting surface and the vertical direction is 40° to 50°.

[0017] Furthermore, the first reflecting surface, the second reflecting surface, the third reflecting surface and the fourth reflecting surface are all provided with light distribution patterns.

[0018] Furthermore, a light outlet is provided at one end of the light outlet portion away from the light-enhancing portion, and an inner wall of the light outlet is provided with a corn kernel pattern.

[0019] Furthermore, a plurality of the light-enhancing portions are provided, and the plurality of light-enhancing portions are sequentially arranged along the length direction of the light-emitting portion.

[0020] Furthermore, a light entrance is provided at one end of the concentrator away from the first reflecting portion, and a light distribution pattern is provided on an inner wall of the concentrator.

[0021] The beneficial effects of the utility model are:

[0022] By providing multiple light-increasing parts, part of the light is emitted from the light-emitting part after being totally reflected by the first reflecting surface and the second reflecting surface; part of the light is emitted from the light-emitting part through the third reflecting surface and the fourth reflecting surface, and the light-emitting width of the light-increasing part is the sum of the light-emitting width of the first reflecting surface and the light-emitting width of the second reflecting surface, thereby increasing the light-emitting width and thus increasing the illuminated area; with multiple reflections on the first reflecting surface, the second reflecting surface, the third reflecting surface and the fourth reflecting surface, the cost of the light source is reduced, the need for complex circuits is eliminated, thereby improving the lighting efficiency, reducing heat dissipation, and improving the lighting effect.

[0023] 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

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 This is a structural diagram of a thick-walled part for increasing the light output area of ​​a headlight in the utility model;

[0026] Figure 2 yes Figure 1 Rear view;

[0027] Figure 3 yes Figure 1 A top view of

[0028] Figure 4 yes Figure 2 Left view of .

[0029] In the picture:

[0030] 1. Thick-walled part body; 2. Concentrator; 21. Light inlet; 3. Light outlet; 31. Light outlet; 4. Light-enhancing part; 41. First reflecting part; 411. First reflecting surface; 412. Second reflecting surface; 42. Second reflecting part; 421. Third reflecting surface; 422. Fourth reflecting surface. DETAILED DESCRIPTION

[0031] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0032] Example:

[0033] like Figures 1 to 4As shown, a thick-walled component for increasing the light-emitting area of ​​a vehicle lamp comprises: a thick-walled component body 1 and a light-emitting portion 3, the light-emitting portion 3 being connected to one end of the thick-walled component body 1, and the incident light is emitted from the light-emitting portion 3 through the thick-walled component body 1; the thick-walled component body 1 is provided with a light-enhancing portion 4, the light-enhancing portion 4 comprises a first reflecting portion 41 and a second reflecting portion 42, the first reflecting portion 41 and the second reflecting portion 42 being connected in sequence along the length direction of the light-emitting portion 3, the first reflecting portion 41 and the second reflecting portion 42 respectively perform total reflection on the incident light; a plurality of light-enhancing portions 4 are provided, and the plurality of light-enhancing portions 4 are arranged in sequence along the length direction of the light-emitting portion 3, and the required light-emitting width is achieved by arranging the plurality of light-enhancing portions 4; a light-emitting port 31 is provided at one end of the light-emitting portion 3 away from the light-enhancing portion 4, and a corn kernel pattern is provided on the inner wall of the light-emitting port 31, and the corn kernel pattern improves the uniformity of the light, so that the light is evenly emitted from the light-emitting port 31.

[0034] A first reflecting surface 411 and a second reflecting surface 412 are respectively arranged in parallel on both sides of the first reflecting portion 41. The first reflecting surface 411 and the second reflecting surface 412 are both arranged inclined relative to the horizontal direction. The angle between the first reflecting surface 411 and the second reflecting surface 412 and the horizontal direction is 45°. The angle between the incident light and the first reflecting surface 411 is also 45°, ensuring that the efficiency of total reflection of the incident light on the first reflecting surface 411 and the second reflecting surface 412 is maximized; the projection length of the first reflecting surface 411 and the second reflecting surface 412 in the horizontal direction is A. One end of the first reflecting portion 41 is connected to the light exit portion 3, and part of the incident light is emitted from the light exit portion 3 through the first reflecting portion 41.

[0035] The second reflecting portion 42 is in the shape of a slide. The inclined surface of the second reflecting portion 42 is provided with a third reflecting surface 421 and a fourth reflecting surface 422 in sequence from bottom to top. The angle between the third reflecting surface 421 and the fourth reflecting surface 422 and the vertical direction is 45°, ensuring that the total reflection efficiency of the incident light on the third reflecting surface 421 and the fourth reflecting surface 422 is maximized; the projection length of the third reflecting surface 421 and the fourth reflecting surface 422 in the horizontal direction is B. The top of the second reflecting portion 42 is connected to the light exit portion 3, and part of the incident light is emitted from the light exit portion 3 through the second reflecting portion 42.

[0036] Light distribution patterns are provided on the first reflecting surface 411 , the second reflecting surface 412 , the third reflecting surface 421 and the fourth reflecting surface 422 . The light distribution patterns ensure that the light remains uniform after total reflection in sequence, thereby improving the uniformity of each total reflection of the light.

[0037] The light-enhancing portion 4 also includes a concentrator 2, which has a light inlet 21 at one end of the concentrator 2 away from the first reflecting portion 41, and a light distribution pattern is provided on the inner wall of the concentrator 2, which uniformizes the incident light. The concentrator 2 is connected to the other end of the first reflecting portion 41, and the projection length of the concentrator 2 in the horizontal direction is L; wherein, L≤A, L≤B. In the existing scheme, the incident light is emitted from the light-emitting portion 3 through the concentrator 2, and the light-emitting width of the light-emitting portion 3 is L. The light width of the light in this scheme is A+B. Since, L≤A or B, the light-emitting width of this scheme is at least doubled.

[0038] Among them, a part of the incident light is emitted to the first reflecting surface 411, and after being totally reflected by the first reflecting surface 411, it is emitted to the second reflecting surface 412, and after being totally reflected by the second reflecting surface 412, it is emitted from the light emitting portion 3; another part of the incident light is emitted to the third reflecting surface 421, and after being totally reflected by the third reflecting surface 421, it is emitted to the fourth reflecting surface 422, and after being totally reflected by the fourth reflecting surface 422, it is emitted from the light emitting portion 3. The sum of the widths of the light emitted by the first reflecting portion 41 and the second reflecting portion 42 is the light emitting width, thereby increasing the light emitting area of ​​the incident light.

[0039] To sum up, the light source is placed at the light entrance 21, and the incident light enters the concentrator 2 from the light entrance 21. A part of the incident light is emitted to the first reflecting surface 411, and after total reflection by the first reflecting surface 411, it is emitted to the second reflecting surface 412, and after total reflection by the second reflecting surface 412, it is emitted out of the light exit part 3. The light exit width of this part of the light is A; another part of the incident light is emitted to the third reflecting surface 421, and after total reflection by the third reflecting surface 421, it is emitted to the fourth reflecting surface 422, and after total reflection by the fourth reflecting surface 422, it is emitted out of the light exit part 3. The light exit width of this part of the light is B; therefore, the light exit width of the light enhancing part 4 is A+B, which is greater than the width of the concentrator 2, thereby increasing the light exit area and optimizing the light exit effect.

[0040] The various devices selected in this application are all universal standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0041] In the description of the embodiments of the present invention, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0042] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] 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 part for increasing the light output area of ​​a vehicle lamp, characterized in that: include: A thick-walled member body (1) and a light-emitting portion (3), wherein the light-emitting portion (3) is connected to one end of the thick-walled member body (1); The thick-walled member body (1) is provided with a light-enhancing portion (4), the light-enhancing portion (4) comprising a first reflecting portion (41) and a second reflecting portion (42), the first reflecting portion (41) and the second reflecting portion (42) being sequentially connected along the length direction of the light-emitting portion (3); A first reflecting surface (411) and a second reflecting surface (412) are respectively and parallelly arranged on both sides of the first reflecting portion (41); the first reflecting surface (411) and the second reflecting surface (412) are both arranged to be inclined relative to the horizontal direction; and one end of the first reflecting portion (41) is connected to the light emitting portion (3); The second reflecting portion (42) is in the shape of a slide, and the inclined surface of the second reflecting portion (42) is provided with a third reflecting surface (421) and a fourth reflecting surface (422) in sequence from bottom to top, and the top end of the second reflecting portion (42) is connected to the light emitting portion (3); Part of the incident light is emitted toward the first reflecting surface (411), is totally reflected by the first reflecting surface (411), and then is emitted toward the second reflecting surface (412), and then is totally reflected by the second reflecting surface (412) and then exits the light exit portion (3); Another portion of the incident light is emitted toward the third reflection surface (421), is totally reflected by the third reflection surface (421), and then is emitted toward the fourth reflection surface (422), and then is totally reflected by the fourth reflection surface (422) and then exits the light exit portion (3).

2. A thick-walled part for increasing the light output area of ​​a vehicle lamp as claimed in claim 1, characterized in that: The projection lengths of the first reflecting surface (411) and the second reflecting surface (412) in the horizontal direction are both A.

3. A thick-walled part for increasing the light output area of ​​a vehicle lamp as claimed in claim 2, characterized in that: The projection lengths of the third reflecting surface (421) and the fourth reflecting surface (422) in the horizontal direction are both B.

4. A thick-walled part for increasing the light output area of ​​a vehicle lamp as claimed in claim 3, characterized in that: The light-increasing portion (4) further comprises a condenser (2), the condenser (2) being connected to the other end of the first reflecting portion (41), and the projection length of the condenser (2) in the horizontal direction being L; Among them, L≤A, L≤B.

5. A thick-walled part for increasing the light output area of ​​a vehicle lamp as claimed in claim 1, characterized in that: The angles between the first reflecting surface (411) and the second reflecting surface (412) and the horizontal direction are both 40° to 50°.

6. A thick-walled part for increasing the light output area of ​​a vehicle lamp as claimed in claim 1, characterized in that: The included angles between the third reflecting surface (421) and the fourth reflecting surface (422) and the vertical direction are both 40° to 50°.

7. A thick-walled part for increasing the light output area of ​​a vehicle lamp as claimed in claim 4, characterized in that: Light distribution patterns are provided on the first reflecting surface (411), the second reflecting surface (412), the third reflecting surface (421) and the fourth reflecting surface (422).

8. A thick-walled part for increasing the light output area of ​​a vehicle lamp as claimed in claim 1, characterized in that: A light outlet (31) is provided at one end of the light outlet portion (3) away from the light-increasing portion (4), and an inner wall of the light outlet (31) is provided with a corn kernel pattern.

9. A thick-walled part for increasing the light output area of ​​a vehicle lamp as claimed in claim 1, characterized in that: A plurality of the light-increasing portions (4) are provided, and the plurality of light-increasing portions (4) are arranged in sequence along the length direction of the light-emitting portion (3).

10. A thick-walled part for increasing the light output area of ​​a vehicle lamp as claimed in claim 4, characterized in that: A light inlet (21) is provided at one end of the concentrator (2) away from the first reflective portion (41), and a light distribution pattern is provided on the inner wall of the concentrator (2).

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