CN113864731A

CN113864731A - Uniform light thick wall structure

Info

Publication number: CN113864731A
Application number: CN202111048777.1A
Authority: CN
Inventors: 张琳; 徐青; 肖星; 王存峰
Original assignee: Chery Automobile Co Ltd
Current assignee: Chery Automobile Co Ltd
Priority date: 2021-09-08
Filing date: 2021-09-08
Publication date: 2021-12-31
Anticipated expiration: 2041-09-08
Also published as: CN113864731B

Abstract

The invention provides a dodging thick-wall structure which comprises a first thick wall and a second thick wall, wherein the light emitting surface of LED particles on a PCB (printed circuit board) at the light incident side of the first thick wall faces the light incident side of the first thick wall, the first thick wall and the second thick wall are of an integrated connected structure, the wall surfaces of the first thick wall and the second thick wall are integrally opposite, and the light emergent side of the first thick wall and the light incident side of the second thick wall are arranged at intervals. The integrated lamp assembly has the advantages that the first thick wall and the second thick wall are integrated into a whole, the integrated lamp assembly can be formed by injection molding, the single piece formed by injection molding does not have the condition that parts between the first thick wall and the second thick wall are assembled, the arrangement space on the lamp assembly is small, the installation and the fixation are simple and convenient, particularly, the light equalizing and condensing characteristics between the first thick wall and the second thick wall are determined, the discreteness of the optical performance caused by the assembly process can not occur, and the uniformity and the stability of the brightness of a bright area can be ensured.

Description

Uniform light thick wall structure

Technical Field

The invention relates to a light-homogenizing thick-wall part structure of an automobile lamp.

Background

At present, the luminous effect of an automobile lamp becomes more and more bright point which is attracted by the public, since the LED is applied to the automobile field, the light shape is homogenized, which is always the aim of many automobile developers, from the initial use of an inner mask with a certain light homogenizing effect, to the inner mask sanding treatment, to the use of a diffusion agent with partial functions, and to the use of a Fresnel mask, until the use of a light guide, which is a breakthrough, a plurality of host factories use the light, but after popularization, the single shape and obvious optical tooth appearance of the light guide cannot meet the aesthetic quality of the public, so that a historical breakthrough should be made to the use of a thick wall, which is really an imagination space for modelers, firstly, the special shape is allowed, secondly, the light guide is crystal clear, the texture is improved, although the light homogenizing effect is inferior to the light guide, but the visual sense of surprise is brought to the public, therefore, the only light homogenizing effect of the light guide is just less than the light homogenizing effect of the light guide, the light guide becomes an object of attack of various lamp manufacturers, various combined optical schemes are created, the LED side emits light with thick walls, the light reflecting bowl firstly condenses light and then adds the thick walls, the light condenser adds the thick walls, and the light guide adds the thick walls. The wall is a thick wall and a thick wall which can be integrally formed by injection molding. Therefore, the prior art named "a thick-wall light guide and LED thick-wall brake lamp" (CN 210153724U document 1), "a rear combination lamp using a double-layer thick-wall structure to achieve uniform light emission" (CN 210485582U document 2), and "a high-efficiency combined thick-wall optical system for achieving function multiplexing" (CN 211260673U document 3) are all in a breakthrough design, but the above solution has the same defect, such as that the document 1 only has one thick-wall light guide 1, so that the light equalizing effect is limited; in document 2, although the double-layer thick-walled member (13) is provided in the sealed cavity, the light-equalizing function of the double-layer thick-walled member is still not exhibited, and particularly, the double-sided thick walls of the double-layer thick-walled member 13 are not used for light to pass through in sequence, and the light source member 15 is provided outside the joint portion of the inner lamp housing 131 and the light guide plate 132, so the light guide plate 132 with the light spoon 134 provided on the lower surface thereof should be a reflection plate rather than a transmission plate, and therefore, the light energy consumption is extremely serious, and the inner lamp housing 131 does not have any light-equalizing structure, so the inner lamp housing 131 only has a simple lens function; in document 3, the first light source 11 and the second light source 12 are respectively disposed corresponding to the rear thick-walled member 2 and the front thick-walled member 3, and a part of the light sources do not pass through the rear thick-walled member 2 and the front thick-walled member 3 to be uniformly irradiated, so that the uniform irradiation effect is greatly reduced.

Disclosure of Invention

The invention aims to provide a light homogenizing thick-wall structure with good light homogenizing effect and stable smooth surface area.

In order to achieve the purpose, the invention adopts the following technical scheme that the uniform thick-wall structure comprises a first thick wall and a second thick wall, and is characterized in that: the light emitting surface of the LED particles on the PCB circuit board on the light incident side of the first thick wall faces to the light incident side of the first thick wall, the first thick wall and the second thick wall are of an integrated connected structure, the wall surface of the first thick wall and the wall surface of the second thick wall are integrally opposite, and the light emergent side of the first thick wall and the light incident side of the second thick wall are arranged at intervals.

The integrated lamp assembly has the advantages that the first thick wall and the second thick wall are integrated into a whole, the integrated lamp assembly can be formed by injection molding, the single piece formed by injection molding does not have the condition that parts between the first thick wall and the second thick wall are assembled, the arrangement space on the lamp assembly is small, the installation and the fixation are simple and convenient, particularly, the light equalizing and condensing characteristics between the first thick wall and the second thick wall are determined, the discreteness of the optical performance caused by the assembly process can not occur, and the uniformity and the stability of the brightness of a bright area can be ensured.

Drawings

FIG. 1 is a perspective view of the front of the present invention as viewed facing the vehicle;

FIG. 2 is a perspective view of the back of the present invention;

FIG. 3 is a perspective view of the present invention;

fig. 4 and 5 are cross-sectional views a-A, B-B, respectively, of fig. 1.

Detailed Description

With reference to the accompanying drawings, a dodging thick-wall structure comprises a first thick wall 10 and a second thick wall 20, and is characterized in that: the light emitting surface of the LED particles 40 on the PCB 30 on the light incident side of the first thick wall 10 faces the light incident side of the first thick wall 10, the first thick wall 10 and the second thick wall 20 are in an integral connected structure, and the light emitting side of the first thick wall 10 and the light incident side of the second thick wall 20 are arranged at an interval.

Above-mentioned first thick wall 10 of body coupling, second thick wall 20 and the wall is relative, the arrangement of interval formula, the light source that LED granule 40 provided is through first thick wall 10 in proper order, twice even light has been realized during the second thick wall 20, the spotlight function has still been possessed simultaneously, the light source that LED granule 40 provided is the divergent light that is certain angle and diverges, through first thick wall 10, light is gathered together again and forms more even directional light directive second thick wall 20, after even light once more, the even effect of light is better, local special area, can also increase the light tooth of light filling effect, to the figurative light emitting area of dysmorphism, the lamps and lanterns inner structure of arranging that this design can be better, special molding also can be realized a bit more.

The light-homogenizing and light-stabilizing effect of the invention can be used as an automobile position lamp, a daytime running lamp and the like, and the invention is particularly suitable for lamps with luminous surfaces with special shapes.

Preferably, both ends of the first thick wall 10 and the second thick wall 20 in the vehicle width direction are connected.

Meanwhile, the bottom edges of the first thick wall 10 and the second thick wall 20 form a connected structure.

The above connection schemes can also be used in combination, it should be noted that in the connection structure formed between the bottom edges of the first thick wall 10 and the second thick wall 20, the connection parts are considered to be spaced, and it is preferable to avoid the connection of the bottom parts of the first thick wall 10 and the second thick wall 20 into a complete U-shaped groove, so that the components are cooled and the accumulation of dust in the cavity is avoided.

The light emergent surface of the first thick wall 10 and the light incident surface of the second thick wall 20 are opposite to each other and are tooth-shaped surfaces or corrugated surfaces. Preferably, the tooth-shaped surface is formed, that is, the light-exiting surface of the first thick wall 10 is the light-exiting tooth-shaped surface 11, and the light-entering surface of the second thick wall 20 is the light-entering tooth-shaped surface 21.

The light-emitting surface of the second thick wall 20 is a textured surface 22. The textured surface 22 can also be understood as a textured light exit surface, which not only provides a decorative effect, but also improves the light uniformity.

In view of the excellent light-equalizing and light-stabilizing effects of the present invention, the present invention can implement personalized design on the outline of the light-emitting surface of the second thick wall 20, that is, the presented light spot outline has the basis of personalized design, that is, the upper and lower edges of the second thick wall 20 are high and low displacement and smooth. More specifically, the size of the upper and lower areas of the end portion, close to the side wall, of the second thick wall 20 is larger than the size of the upper and lower directions of the inner area thereof, a supplementary lighting light source 50 is arranged at the connection position of the end portions, located at the side wall, of the first thick wall 10 and the second thick wall 20, and the supplementary lighting light source 50 includes a supplementary lighting PCB 51 and supplementary lighting LED particles 52. The light area presented by the proposal is the hammer-shaped luminous surface shown in figure 1, which solves the problem that the optical proposal in the prior art is difficult to realize the facula area or the phenomenon that the brightness of the luminous area in partial area is not uniform even if the optical proposal is realized.

As shown in fig. 4, the second thick wall 20 has a light filling tooth 23 at an outer side portion near the end portion of the side wall, and a local light filling tooth 10b is provided on an inner side surface of the transition thick wall 10a between the first thick wall 10 and the second thick wall 20. The light emitted by the light supplement LED particles 52 of the light supplement light source 50 is homogenized by the transition thick wall 10a, then reaches the local light supplement teeth 10b on the light emitting surface side of the transition thick wall 10a, and then reaches the light incident surface of the second thick wall 20 as the light incident tooth surface 21, and the second thick wall 20 at the position is provided with the light supplement teeth 23, so that the local illumination light region is expanded and then is effectively supplemented with light to meet the requirement of personalized light spot design.

Claims

1. A dodging thick-walled structure, including first thick-walled (10), second thick-walled (20), characterized by: the LED light source comprises a PCB (30) and is characterized in that the light incident side of the first thick wall (10) is located, the light emitting surface of the LED particles (40) on the PCB is located on the light incident side of the first thick wall (10) faces the light incident side of the first thick wall (10), the first thick wall (10) and the second thick wall (20) are of an integrated connected structure, and the light emergent side of the first thick wall (10) and the light incident side of the second thick wall (20) are arranged at intervals.

2. The optically homogenizing thick-walled structure of claim 1, wherein: the first thick wall (10) and the second thick wall (20) are connected at two ends in the vehicle width direction.

3. The optically homogenizing thick-walled structure of claim 1, wherein: the connecting structure is formed between the bottom edges of the first thick wall (10) and the second thick wall (20).

4. An optically homogenizing thick-walled structure according to claim 1, 2 or 3, wherein: the light emergent surface of the first thick wall (10) and the light incident surface of the second thick wall (20) are opposite to each other and are tooth-shaped surfaces or corrugated surfaces.

5. An optically homogenizing thick-walled structure according to claim 1, 2 or 3, wherein: the light-emitting surface of the second thick wall (20) is a textured surface (22).

6. An optically homogenizing thick-walled structure according to claim 1 or 2, wherein: the upper edge and the lower edge of the second thick wall (20) are extended smoothly in a height-changing way.

7. The dodging thick-walled structure of claim 4, wherein: the light outgoing surface of the first thick wall (10) is a light outgoing tooth-shaped surface (11), and the light incoming surface of the second thick wall (20) is a light incoming tooth-shaped surface (21).

8. An optically homogenizing thick-wall construction according to claim 6, wherein: the size of the upper area and the lower area of the end part, close to the side wall, of the second thick wall (20) is larger than the size of the upper area and the lower area of the inner area, a light supplement light source (50) is arranged at the connection position of the end part, located at the side wall, of the first thick wall (10) and the second thick wall (20), and the light supplement light source (50) comprises a light supplement PCB (printed circuit board) (51) and light supplement LED particles (52).

9. The dodging thick-walled structure of claim 8, wherein: the outer side part of the end part, close to the side wall, of the second thick wall (20) is provided with light supplementing teeth (23), and the inner side surface of the transition thick wall (10a) between the first thick wall (10) and the second thick wall (20) is provided with local light supplementing teeth (10 b).