Light-weight thick-wall part optical structure for automobile lamp

Abstract

The light-weight thick-wall part optical structure for the automobile lamp comprises a thick-wall structure, a PCB and an LED light source arranged on the PCB, the thick-wall structure is of a hollow structure, the inner side of the thick-wall structure is a smooth plane, the outer side of the thick-wall structure is an inclined plane structure with a pattern structure, and the smooth plane side of the thick-wall structure corresponds to the LED light source. The light-weight thick-wall part for the automobile lamp is reasonable in optical structure design, the thick-wall part is of a hollow structure, the light source side is the smooth plane, the diffusion pattern structures are arranged inside and outside the light-emitting inclined plane side, light weight is achieved, the weight can be reduced by more than 50%, installation is easy and convenient, and the light-emitting effect is even.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile lamps, especially to a light-weight thick-wall piece optical structure for automobile lamps. BACKGROUND

[0002] With the intensification of market competition, whether the automobile modeling is beautiful has become one of the decisive factors for consumers to choose new cars, and the car lamp is an important factor to determine whether the modeling is beautiful. The requirements of major automobile brands for modeling design are becoming more and more demanding, and the modeling surface with novel features and beautiful curves often appears, which poses a great challenge to suppliers and OEMs on how to design car lamps with beautiful appearance, uniform light emission, low cost, and reliable quality.

[0003] With the development of car lamp technology, the design focus of automobile brands for car lamps gradually extends from basic requirements such as meeting national standards, light emission effect, and quality control to higher requirements such as cost control, product weight, whole lamp power, environmental protection, and carbon neutralization. The existing car lamp products are usually placed close to the horizontal, vertical, and normal direction due to the limitation of internal space, assembly sequence, process, assembly method (manual or machine), and PCB (printed circuit board). For car lamps with more inclined modeling surface (such as front signal lamp and rear side lamp), a single hard PCB board has to be placed close to the inside of the car lamp. How to design an optical light emission structure that can meet the modeling appearance requirements and realize lightweight, low cost, high efficiency, and good uniformity of internal structural parts has become a problem to be solved.

[0004] The car lamp optical thick-wall piece is a light emission technology that places the light source at the focal point, collimates the light through the condenser, and then diffuses the light through the external surface pattern to achieve a more uniform display effect. It is widely used in various types of passenger cars, front lamps, rear lamps, and indoor atmosphere lamps. It is mainly used in turn signals, daytime running lamps, position lamps, brake lamps, etc., and mainly uses LED light sources. Today, it has become the main configuration of car lamps.

[0005] For car lamps that use a condenser and thick-wall piece light emission scheme and have a large modeling surface inclination angle, there are usually two optical structures: 1. One scheme is to use multiple soft-wire-connected PCB circuit boards, which are arranged according to the inclination angle of the modeling surface and are shaped in front, back, left, and right. Although this scheme can achieve the requirements of lighting and light emission and will not cause the thick-wall piece to be too large, the hardware cost of related components in electronic design is relatively high. 2. Another scheme is to use a single hard PCB board, which has to be placed close to the inside of the car lamp due to the limitation of internal space. This causes difficulties in optical design and makes the thick-wall piece too large. The thickness of the condenser thick-wall piece exceeds 40 mm or even thicker to meet the requirements, which will increase the weight of the whole piece and cause a series of problems such as cost, installation, and product quality.

[0006] As a patent CN211032348U discloses a kind of automobile lamps, including lamp body, thick wall piece, light source, set up on the decorative frame of lamp body and set up on the bracket of the lamp body, the thick wall piece is fixedly arranged on bracket and there is gap between thick wall piece and lamp body;Thick wall piece is relatively large in thickness, causing weight is relatively large, there is cost and installation etc. Practical new type content

[0007] In view of prior art deficiencies, the utility model provides a kind of light weight thick wall piece optical structure for automobile lamps, to achieve the purpose of light weight, easy to install.

[0008] In order to solve the above technical problems, the technical scheme adopted by the utility model is:

[0009] The light weight thick wall piece optical structure for automobile lamps, including thick wall structure, PCB board and LED light source set on PCB board, the thick wall structure is hollow structure, the inner side of thick wall structure is smooth plane, the outer side of thick wall structure is the inclined plane structure with pattern structure, the smooth plane side of thick wall structure corresponds LED light source setting.

[0010] Further:

[0011] The edge of the thick wall structure is provided with a lug structure for fixed installation.

[0012] Positioning hole is provided on the PCB board, and positioning column matched with the positioning hole is provided on the thick wall structure.

[0013] The PCB board is an integral plate, a group of LED light sources are provided on the PCB board, and a light collector is provided on the inner side of the thick wall structure corresponding to each LED light source.

[0014] The inner side of the inclined plane structure is the first diffusion pattern of thick wall middle cavity, and the outer side of the inclined plane structure is the second diffusion pattern of thick wall outer surface.

[0015] The hollow structure is a right-angle cavity structure.

[0016] The PCB board is vertically arranged with the set light emitting direction.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] The light weight thick wall piece optical structure for automobile lamps is reasonable in design, the thick wall piece structure is hollow structure, the light source side is smooth plane, the inner and outer of light emitting inclined plane side are provided with diffusion pattern structure, light weight is realized, can reduce more than 50%, easy to install, and the light emitting effect is uniform. DRAWINGS

[0019] The content expressed by each figure of the present specification and the marks in the figure are briefly described as follows:

[0020] Figure 1 It is the side view schematic diagram of the thick-walled piece optical structure of the utility model.

[0021] Figure 2 It is the front view schematic diagram of the thick-walled piece optical structure of the utility model.

[0022] Figure 3 It is the top view schematic diagram of the thick-walled piece optical structure of the utility model.

[0023] Figure 4 It is the sectional view schematic diagram of the thick-walled structure of the utility model.

[0024] Figure 5 It is the first diffusion pattern enlarged schematic diagram of the utility model.

[0025] In the drawing,

[0026] 1. Condensing collimator, 2. Smooth plane, 3. Thick-walled middle cavity first diffusion pattern, 4. Thick-walled outer surface second diffusion pattern, 5. PCB board, 6. LED light source. DETAILED DESCRIPTION

[0027] The specific embodiments of the utility model are further explained in detail by the description of the embodiments with reference to the drawings.

[0028] As Figures 1 to 5 Indicated, the light weight thick-walled piece optical structure for automobile lamps, including thick-walled structure, PCB board 5 and LED light source 6 set on PCB board 5;The light color of LED light source is any one of white light, yellow light, red light, blue light and green light.

[0029] Thick-walled structure is hollow structure, and the inner side of thick-walled structure is smooth plane 2, and the outer side of thick-walled structure is inclined plane structure with pattern structure, and the smooth plane side of thick-walled structure corresponds to the setting of LED light source.

[0030] The thick-walled piece structure of the utility model is hollow structure, and the light source side is smooth plane, and the light-emitting inclined plane side is provided with diffusion pattern structure inside and outside, realizes light weight, can reduce weight by more than 50%, is easy to install, and the luminous effect is uniform.

[0031] The edge of thick-walled structure is provided with lug structure for fixed installation;PCB board is provided with positioning hole, and thick-walled structure is provided with positioning column matched with positioning hole;It is integrated with relevant fixed structure, and it is easy to install, and the structure is stable and reliable.

[0032] Further, the PCB board 5 is an integral board, a group of LED light sources are arranged on the PCB board, and a light collector 1 is arranged on the inner side of the thick wall structure corresponding to each LED light source. The light collector is arranged on the light entering side close to the light source, the LED light source is arranged on the focal point of the light collector, the PCB board is fixed on the thick wall member, and a module unit structure is formed.

[0033] The hollow structure is a right-angle cavity structure, and the PCB board is arranged perpendicularly to the set light emitting direction. The inner side of the inclined surface structure is a first diffusion pattern 3 of the thick wall middle cavity, and the outer side of the inclined surface structure is a second diffusion pattern 4 of the thick wall outer surface.

[0034] According to an embodiment of the utility model, the vertical smooth surface close to the light source is a refraction light exit surface after the light passes through the light collector, and the light enters the middle cavity through the plane. The first diffusion pattern surface is arranged on the large-angle inclined base surface, is a refraction light entrance surface after the light passes through the middle cavity, and reenters the thick wall member. The second pattern surface of the outermost side of the thick wall is arranged on the angle inclined base surface, and is used for finally diffusing the light.

[0035] The first diffusion pattern surface of the thick wall middle cavity away from the light source side is arranged on the large-angle inclined surface as the base surface, but can refract the light according to the set light emitting direction, and a certain diffusion angle is added to make the light uniformly diffuse. The second diffusion pattern surface of the outermost side of the thick wall is superimposed, the light emitting efficiency is ensured, the uniform light emitting effect is realized, and good engineering feasibility is achieved. For the vehicle lamp with the too large inclined angle of the outer modeling surface, the optical scheme of the single hard PCB board and the large-size thick wall member also does not make the whole lamp weight too large, light weight, low cost and good light emitting uniformity are realized, the assembly process is reduced and optimized by the single hard PCB board, the light weight design reduces the energy consumption of vehicle driving, the use of raw materials is reduced, the cost is reduced, the interests of manufacturers are met, and the current world environmental protection trend is met.

[0036] The above only describes the preferred embodiment of the utility model, and the above technical features can be combined to form multiple embodiment schemes of the utility model.

[0037] The utility model is described above in combination with the drawings, and obviously, the specific implementation of the utility model is not limited by the above mode, as long as various non-essential improvements are made by adopting the concept and technical scheme of the utility model, or the concept and technical scheme of the utility model is directly applied to other occasions without improvement, and all falls within the protection scope of the utility model.

Claims

1. A light-weight thick-walled optical structure for an automotive lamp, comprising a thick-walled structure, a PCB board and a LED light source disposed on the PCB board, characterized in that: The thick-wall structure is a hollow structure, the inner side of the thick-wall structure is a smooth plane, the outer side of the thick-wall structure is a bevel structure with a pattern structure, and the smooth plane side of the thick-wall structure corresponds to the LED light source.

2. The lightened thick-walled member optical structure for an automotive lamp according to claim 1, characterized by: The edge of the thick-wall structure is provided with a fixing lug structure for fixing installation.

3. The lightened thick-walled member optical structure for an automotive lamp according to claim 1, characterized by: The PCB is provided with a positioning hole, and the thick-wall structure is provided with a positioning column matched with the positioning hole.

4. The lightened thick-walled member optical structure for an automotive lamp according to claim 1, characterized by: The PCB is an integral plate, a group of LED light sources are arranged on the PCB, and a light collector is arranged on the inner side of the thick-wall structure corresponding to each LED light source.

5. The lightened thick-walled member optical structure for an automotive lamp according to claim 1, characterized by: The inner side of the bevel structure is a first diffusion pattern of a thick-wall middle cavity, and the outer side of the bevel structure is a second diffusion pattern of a thick-wall outer surface.

6. The lightened thick-walled member optical structure for an automotive lamp according to claim 1, characterized by: The hollow structure is a right-angle cavity structure.

7. The lightened thick-walled member optical structure for an automotive lamp according to claim 4, characterized by: The PCB is arranged vertically to the set light-emitting direction.

Images