Automobile lamp capable of emitting light uniformly

Abstract

The utility model relates to an automobile lamp capable of uniformly emitting light. The heat dissipation substrate is mounted on the base; the number of the COB integrated light sources is multiple, and the multiple COB integrated light sources are all installed on the heat dissipation substrate; and the outer lens is connected with the base, covers the plurality of COB integrated light sources, is provided with a diffusant, and refracts light of the COB integrated light sources to realize uniform light emission. According to the automobile lamp capable of uniformly emitting light, the structure can be uniformly emitted only by using the COB integrated light source, so that the material cost is reduced, the power is reduced, and the design freedom is improved; in the aspect of appearance, the COB integrated light source is high in customizability, and the visual effect of uniform light emitting is finally achieved; in terms of installation and space, due to the fact that the COB integrated light source is small in size and high in customizability, reliable performance is achieved through various optimization schemes, and the maximum utilization rate is achieved in a limited space due to the fact that the COB integrated light source is high in customizability.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile lamps, in particular to an automobile lamp with uniform light emission. Background Art

[0002] With the rapid development of the automobile industry and the progress of human civilization, people have put forward higher and higher requirements for the appearance and economy of automobiles. As an important part of automobiles, headlights are no exception. They must meet the requirements of appearance, lighting regulations and uniform lighting effect.

[0003] The main optical solutions for lamps on the current market are: 1. Reflector plus inner mirror, with deep patterns set on the inner mirror; 2. Reflector plus inner mirror, with uniform light material used for the inner mirror.

[0004] However, in order to achieve uniform lighting of lamps at present, it is necessary to install an inner mirror inside the lamp, so that the high-power LED light source is first refracted on the inner mirror to the outer mirror for uniform light distribution, which requires a large power LED light source and a better heat dissipation design. Or a large amount of diffuser is added to the outer mirror to make the lamp emit light uniformly, and the use of a large amount of diffuser in the outer mirror will affect the transmittance, so a high-power light source and heat dissipation design are also required. Utility Model Content

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art of reducing light transmittance and heat dissipation effect by using a diffusing agent in order to achieve a uniform light emitting effect.

[0006] In order to solve the above technical problems, the utility model provides a uniformly luminous automobile lamp, comprising: a base; a heat dissipation substrate, which is installed on the base; a plurality of COB integrated light sources, which are arranged and the plurality of COB integrated light sources are installed on the heat dissipation substrate; an external light distribution mirror, which is connected to the base and the external light distribution mirror cover is provided with a plurality of COB integrated light sources, the external light distribution mirror is provided with a diffusing agent, and the external light distribution mirror refracts the light of the COB integrated light source to achieve uniform luminescence.

[0007] In one embodiment of the present invention, the heat dissipation substrate is provided with locking screws, and the heat dissipation substrate is fastened to the base by the locking screws.

[0008] In one embodiment of the present invention, the heat dissipation substrate is in the shape of a rectangular flat plate, and locking screws are provided at both ends of the heat dissipation substrate in the length direction.

[0009] In one embodiment of the present invention, the plurality of COB integrated light sources are arranged on the same straight line along the length direction of the heat dissipation substrate.

[0010] In one embodiment of the utility model, a rectangular groove is provided on the upper end surface of the base, and the heat dissipation substrate is arranged in the rectangular groove.

[0011] In one embodiment of the present invention, the base is a rectangular structure, and step 1 and step 2 are respectively provided on two long sides of the upper end surface of the base.

[0012] In one embodiment of the present invention, the cross-section of the exterior light distribution mirror is "V"-shaped, and a flat portion is provided in the middle of the exterior light distribution mirror.

[0013] In an embodiment of the present invention, two ends of the exterior light distribution mirror are respectively provided with an extension portion 1 and an extension portion 2, and the extension portion 1 and the extension portion 2 are arranged parallel to the plane portion.

[0014] In one embodiment of the utility model, a rectangular protrusion 1 is provided on the end face of the extension part 1 opposite to the base, a rectangular protrusion 2 is provided on the end face of the extension part 2 opposite to the base, the rectangular protrusion 1 is in contact with the step 1, and the rectangular protrusion 2 is in contact with the step 2.

[0015] In one embodiment of the present invention, the straight line where the plurality of COB integrated light sources are located is located on the central plane of the “V”-shaped external light distribution mirror.

[0016] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0017] The uniformly luminous automobile lamp described in the utility model can achieve a uniform luminous structure by using only COB integrated light sources, thereby reducing material costs, reducing power and improving design freedom; in terms of appearance, the COB integrated light source is customizable and strong, and ultimately achieves a visual effect of uniform luminescence; in terms of installation and space, since the COB integrated light source is small in size and highly customizable, reliable performance is achieved through various optimization schemes, and installation and fixing are simple, and maximum utilization is achieved within a limited space due to customizability and strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to make the content of the utility model easier to understand, the utility model is further described in detail according to the specific embodiments of the utility model in combination with the accompanying drawings, wherein

[0019] Figure 1 It is a cross-sectional view of a uniformly luminous automobile lamp in a preferred embodiment of the utility model;

[0020] Figure 2 It is a top view of a uniformly luminous automobile lamp in a preferred embodiment of the utility model.

[0021] Explanation of the reference numerals in the drawings in the specification: base 1, rectangular groove 11, step one 12, step two 13, heat dissipation substrate 2, COB integrated light source 3, external light distribution mirror 4, plane portion 41, extension portion one 42, rectangular protrusion one 421, extension portion two 43, rectangular protrusion two 431, locking screw 5. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0023] Reference Figure 1 , 2 As shown, the automobile lamp with uniform light emission of the utility model comprises several main parts, namely, a base 1, a heat dissipation substrate 2, a COB integrated light source 3 and an external light distribution mirror 4; the heat dissipation substrate 2 is mounted on the base 1; the COB integrated light source 3 is arranged in a plurality, and the plurality of COB integrated light sources 3 are all mounted on the heat dissipation substrate 2; the external light distribution mirror 4 is connected to the base 1, and the external light distribution mirror 4 covers the plurality of COB integrated light sources 3, the external light distribution mirror 4 is provided with a diffusing agent, and the external light distribution mirror 4 refracts the light of the COB integrated light source 3 to achieve uniform light emission.

[0024] In the above structure, the heat dissipation substrate 2 is provided with locking screws 5, and the heat dissipation substrate 2 is locked to the base 1 by the locking screws 5. The heat dissipation substrate 2 is a rectangular flat plate, and locking screws 5 are provided at both ends of the heat dissipation substrate 2 in the length direction.

[0025] In the above structure, the plurality of COB integrated light sources 3 are arranged on the same straight line along the length direction of the heat dissipation substrate 2. The straight line where the plurality of COB integrated light sources 3 are located is located on the center plane of the "V"-shaped external light distribution mirror 4. The external light distribution mirror 4 has a greater degree of design freedom, which further helps to improve the product texture. In addition, since the internal light distribution mirror is eliminated, the weight can be reduced and the cost of the conventional internal light distribution mirror mold structure can be eliminated.

[0026] In the above structure, the upper end surface of the base 1 is provided with a rectangular groove 11, and the heat dissipation substrate 2 is arranged in the rectangular groove 11. The base 1 is a rectangular body structure, and the two long sides of the upper end surface of the base 1 are respectively provided with a step 12 and a step 2 13.

[0027] In the above structure, the cross section of the exterior light distribution mirror 4 is "V" shaped, and a plane portion 41 is provided in the middle of the exterior light distribution mirror 4. An extension portion 1 42 and an extension portion 2 43 are provided at both ends of the exterior light distribution mirror 4, respectively, and the extension portion 1 42 and the extension portion 2 43 are arranged parallel to the plane portion 41. A rectangular convex portion 1 421 is provided on the end surface of the extension portion 1 42 opposite to the base 1, and a rectangular convex portion 2 431 is provided on the end surface of the extension portion 2 43 opposite to the base 1, and the rectangular convex portion 1 421 contacts the step 1 12, and the rectangular convex portion 2 431 contacts the step 2 13.

[0028] The "V"-shaped portion of the exterior light distribution mirror 4 protrudes outward from the outside of the vehicle body. This design makes the structure of the exterior light distribution mirror 4 more three-dimensional and more beautiful.

[0029] The uniformly luminous automobile lamp comprises: a base 1, a heat dissipation substrate 2, a plurality of COB integrated light sources 3, an external light distribution mirror 4 and a locking screw 5. When emitting light, the plurality of COB integrated light sources 3 directly project onto the external light distribution mirror 4. A small amount of diffusing agent is added to the external light distribution mirror 4, and the external light distribution mirror 4 refracts to realize uniform luminescence. Since the direct light source is directly irradiated onto the external light distribution mirror 4, the power of the plurality of COB integrated light sources 3 is reduced, and the internal light distribution mirror is eliminated so that the light source is directly irradiated onto the external light distribution mirror 4, thereby reducing the light loss.

[0030] The uniformly luminous automobile lamp of the utility model uses a solution of COB light source integration to make the lamp emit uniform light. The lamp can achieve the effect of uniform light emission in a smaller space, reduce the number of parts and weight, and improve the freedom of lamp design.

[0031] The COB integrated light source 3 is composed of a plurality of LED chips directly integrated and packaged on a heat dissipation substrate, which can dissipate heat more effectively and improve the heat dissipation rate.

[0032] The COB integrated light source 3 is highly customizable because it is integrated and packaged with multiple LED chips. Therefore, it can be freely combined according to the design of the lamp, thereby improving the design freedom of the lamp.

[0033] Obviously, the above embodiments are merely examples for the purpose of clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the scope of protection of the invention of the utility model.

Claims

1. A uniformly luminous automobile lamp, characterized in that: include, Base; A heat dissipation substrate mounted on the base; The COB integrated light source is provided in a plurality, and the plurality of COB integrated light sources are all mounted on a heat dissipation substrate; The external light distribution mirror is connected to the base, and the external light distribution mirror covers a plurality of COB integrated light sources. The external light distribution mirror is provided with a diffusing agent, and the external light distribution mirror refracts the light of the COB integrated light source to achieve uniform light emission.

2. The uniformly luminous automobile lamp according to claim 1, characterized in that: The heat dissipation substrate is provided with locking screws, and the heat dissipation substrate is locked to the base through the locking screws.

3. The uniformly luminous automobile lamp according to claim 2, characterized in that: The heat dissipation substrate is in the shape of a rectangular flat plate, and locking screws are provided at both ends of the heat dissipation substrate in the length direction.

4. The uniformly luminous automobile lamp according to claim 3, characterized in that: The plurality of COB integrated light sources are arranged on the same straight line along the length direction of the heat dissipation substrate.

5. The uniformly luminous automobile lamp according to claim 4, characterized in that: The upper end surface of the base is provided with a rectangular groove, and the heat dissipation substrate is arranged in the rectangular groove.

6. The uniformly luminous automobile lamp according to claim 5, characterized in that: The base is a rectangular structure, and two long sides of the upper end surface of the base are respectively provided with a step 1 and a step 2.

7. The uniformly luminous automobile lamp according to claim 6, characterized in that: The cross section of the exterior light distribution mirror is "V" shaped, and a flat surface portion is provided in the middle of the exterior light distribution mirror.

8. The uniformly luminous automobile lamp according to claim 7, characterized in that: An extension part 1 and an extension part 2 are respectively disposed at two ends of the exterior light distribution mirror, and the extension part 1 and the extension part 2 are arranged parallel to the plane part.

9. The uniformly luminous automobile lamp according to claim 8, characterized in that: A rectangular convex portion 1 is provided on the end surface of the extension portion 1 opposite to the base, and a rectangular convex portion 2 is provided on the end surface of the extension portion 2 opposite to the base. The rectangular convex portion 1 contacts the step 1, and the rectangular convex portion 2 contacts the step 2.

10. The uniformly luminous automobile lamp according to claim 9, characterized in that: The straight line where the plurality of COB integrated light sources are located is located on the central plane of the "V"-shaped external light distribution mirror.

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