WO2021148055A1

WO2021148055A1 - Array light curtain vehicle lamp

Info

Publication number: WO2021148055A1
Application number: PCT/CN2021/081486
Authority: WO
Inventors: 黄坚; 郭昊宇; 王胜; 姜维; 陈雷
Original assignee: 上汽大众汽车有限公司; 大众汽车股份公司
Priority date: 2020-01-22
Filing date: 2021-03-18
Publication date: 2021-07-29
Also published as: EP4151903A1; CN211083952U

Abstract

An array light curtain vehicle lamp, comprising: a base support (301), an LED assembly (302), a light curtain inner lens (303), an optimization inner lens (304), and an external decorative ring (305). The base support (301) is mounted on a vehicle body structure. The LED assembly (302) is mounted on the base support (301), and comprises a circuit board (321) and LED light sources (322). The light curtain inner lens (303) is mounted in front of the base support (301), and converts light emitted by the LED light sources (322) into light curtain-shaped, uniform, horizontal light. The optimization inner lens (304) is mounted in front of the light curtain inner lens (303), and an optical optimization structure is formed thereon, the optical optimization structure optimizing the uniformity of the light and forming an optical form. The external decorative ring (305) is mounted in front of the optimization inner lens (304), and an optical shading structure is provided thereon, the optical shading structure blocking a portion of the light in order to enhance the optical form. The present array light curtain vehicle lamp features convenient assembly and disassembly, and achieves a light curtain effect using a compact structure, and is able to flexibly implement dot-matrix optical display and forming effects.

Description

Array light curtain lamp

Technical field

The present invention relates to the field of automobile manufacturing, and more specifically, to automobile lighting components.

Background technique

The general composition of automobile headlights includes high beam, low beam, turn signal, daytime running lights, corner lights, and position lights. Among them, high beam lights, low beam lights, turn lights and corner lights are functional lights, mainly to achieve road lighting, steering and auxiliary steering. The daytime running lights and position lights are decorative lights and indicator lights. Function lights such as high beam, low beam, turn signal and corner lights are turned on when needed, and are usually turned off. Decorative lights and indicator lights such as daytime running lights and position lights are turned on when the vehicle is started, and have good recognition and decoration. Daytime running lights and position lights have gradually become an important part of the exterior design of vehicles. They play an increasingly significant role in brand promotion and model identification. Therefore, they have received extensive attention from various car companies.

For decorative lights and indicator lights, LEDs are currently mainly used as light sources. The lighting effects are mainly achieved in the following two ways:

The first method is the solution of LED light source with reflector. Fig. 1a and Fig. 1b show a schematic diagram of the structure of an LED light source with a reflector used in the prior art, wherein Fig. 1b is a cross-sectional view of Fig. 1a along the A-A direction. As shown in Figures 1a and 1b, in this solution, the LED assembly 101 is mounted on the top. The LED assembly 101 is composed of a circuit board (PCB board) and an LED light source mounted on the PCB board. A reflecting bowl 102 is arranged at the rear of the lamp body. The reflecting bowl 102 reflects the light emitted by the LED light source toward the front, that is, toward the front of the vehicle light. If you want to achieve the optical effect of an array or a dot matrix, you need to arrange an array of LED light sources inside the lamp body, and accurately design and process the shape, size and position of the reflecting bowl to obtain the display effect of the reflected array light source. This solution requires a larger space for arranging the LED array and the reflecting bowl, which makes the overall volume of the lamp body larger, which is not conducive to cost control and space utilization. In addition, the optical effect directly formed by the reflection of the reflective bowl is unstable, and there are unavoidable assembly errors in the processing and installation of the reflective bowl, so that the final actual optical effect is often different from the design effect.

The second way is the solution of LED light source with light guide. Fig. 2a and Fig. 2b reveal the schematic diagram of the structure of the LED light source used in the prior art with the light guide, wherein Fig. 2b is a cross-sectional view of Fig. 2a along the A-A direction. As shown in Figures 2a and 2b, in this solution, the LED light source is arranged at one end of the light guide 201, and the light guide 201 is fixed at the required position on the lamp body through the

light guide brackets

202 and 203. When the LED light source is on, the light is transmitted through the light guide, and the position of the light guide will emit light, thereby achieving a strip-shaped optical effect. The light guide has good flexibility and can be designed into various line shapes such as arcs, straight lines, and fold lines, and the light guide will homogenize the light, making the optical effect of the display more uniform. But the shortcomings of using the light guide solution are also significant. The first is the high cost. The light guide bracket needs to be installed first. The material cost and construction cost are high, and it can only be applied to high-end models. The second is that the light guide is mainly used for linear optical effects, which cannot achieve the optical effects of a dot matrix, and has greater limitations in terms of optical modeling.

To sum up, in the prior art, the decorative lights and indicator lights that use LEDs as the light source have certain limitations in terms of cost and flexibility of optical modeling, and cannot fully meet the needs of the market.

Summary of the invention

The present invention aims to provide an array light curtain type vehicle lamp with simple structure and low cost.

According to an embodiment of the present invention, an array light curtain type vehicle lamp is provided, which includes: a base bracket, an LED assembly, an inner lens of the light curtain, an optimized inner lens, and an outer bezel. The base bracket is installed on the car body structure. The LED component is installed on the base bracket, and the LED component includes a circuit board and an LED light source. The lens inside the light curtain is installed in front of the base bracket, and the lens inside the light curtain converts the light emitted by the LED light source into uniform horizontal light in the form of the light curtain. The optimized inner lens is installed in front of the inner lens of the light curtain, and the optimized inner lens forms an optically optimized structure. The optically optimized structure optimizes the uniformity of light and forms an optical shape. The outer bezel is installed in front of the optimized inner lens. The outer bezel is provided with an optical shielding structure, which shields part of the light to enhance the optical shape.

In one embodiment, the array light curtain type vehicle lights are arranged around the headlights, the base bracket, the inner lens of the light curtain, the optimized inner lens and the outer bezel are nested and assembled in sequence, the base bracket, the inner lens of the light curtain, and the optimized inner lens are assembled in sequence. Both the lens and the outer bezel have a central opening and two arc-shaped wings extending from the central opening to both sides, and the position of the central opening corresponds to the position of the headlight.

In one embodiment, the LED assembly is installed on the top of the base bracket, several LED light sources are arranged on the circuit board, and the several LED light sources generate light in a vertical direction and illuminate downward.

In one embodiment, an optical pattern is formed on the inner side of the lens in the light curtain, and the optical pattern converts light in a vertical direction into light in a horizontal direction.

In one embodiment, the optical pattern is a uniformly distributed horizontal stripe on the inner side of the two arc-shaped wings distributed in the light curtain with the lens. The optical pattern converts the light in the vertical direction into uniformly distributed light in the horizontal direction, presenting light. Curtain morphology.

In one embodiment, the optical optimization structure on the optimized inner lens includes an arc-shaped light-transmitting plate and a light-transmitting bump. The arc-shaped light-transmitting plate optimizes the uniformity of light, and the light-transmitting bump forms an optical shape.

In one embodiment, the arc-shaped light-transmitting plate with the optimized inner lens forms two arc-shaped wings, the light-transmitting bumps are formed on the arc-shaped light-transmitting plate, and the number, shape, size and position of the light-transmitting bumps are as required Optical modeling to determine.

In one embodiment, the shielding structure of the outer bezel is an arc-shaped plate with a light-transmitting hole, the arc-shaped plate does not transmit light, the arc-shaped plate forms two arc-shaped wings, the light-transmitting hole and the light-transmitting convex on the optimized inner lens Matching blocks, curved plates and light-transmitting holes enhance optical modeling.

In one embodiment, the number, shape, size, and position of the light-transmitting holes correspond to the light-transmitting bumps on the optimized inner lens in a one-to-one correspondence.

The array light curtain type vehicle lamp of the present invention is formed by stacking a plurality of components one after the other, and is convenient to assemble and disassemble. Through the two sets of lenses, the direction of the light is converted and homogenized, and the light curtain effect is realized with a compact structure. The optical modeling is realized by the light-transmitting bumps and the optical shielding structure, and the dot-matrix optical display and modeling effect can be flexibly realized according to the needs.

Description of the drawings

The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the drawings and embodiments. In the drawings, the same reference numerals always indicate the same features, among which:

Fig. 1a and Fig. 1b show a schematic diagram of the structure of an LED light source with a reflector used in the prior art, wherein Fig. 1b is a cross-sectional view of Fig. 1a along the A-A direction.

Fig. 2a and Fig. 2b reveal the schematic diagram of the structure of the LED light source used in the prior art with the light guide, wherein Fig. 2b is a cross-sectional view of Fig. 2a along the A-A direction.

Fig. 3 discloses an exploded structure diagram of an array light curtain type vehicle lamp according to an embodiment of the present invention.

Fig. 4 discloses a longitudinal cross-sectional structure diagram of an array light curtain type vehicle lamp according to an embodiment of the present invention.

Fig. 5 discloses a transverse cross-sectional structure diagram of an array light curtain type vehicle lamp according to an embodiment of the present invention.

Fig. 6 discloses an assembly structure diagram of an array light curtain type vehicle lamp according to an embodiment of the present invention.

Detailed ways

Referring to Fig. 3 to Fig. 6, Fig. 3 to Fig. 6 disclose the structure diagram of the array light curtain type vehicle lamp according to an embodiment of the present invention. Figure 3 shows the exploded structure diagram of the array light curtain type vehicle lamp. Figures 4 and 5 are the longitudinal and transverse cross-sectional structure diagrams of the array light curtain type vehicle lamp. Figure 6 shows the structure of the array light curtain type vehicle lamp. Assembly structure diagram.

As shown in the figure, the array light curtain type vehicle lamp includes: a base bracket 301, an LED assembly 302, a light curtain inner lens 303, an optimized inner lens 304, and an outer bezel 305. The base bracket 301 is installed on the vehicle body structure. The LED assembly 302 is installed on the base bracket 301, and the LED assembly 302 includes a circuit board 321 and an LED light source 322. The lens 303 in the light curtain is installed in front of the base bracket 301, and the lens 303 in the light curtain converts the light emitted by the LED light source 302 into uniform horizontal light in the form of a light curtain. The optimized inner matching lens 304 is installed in front of the light curtain inner matching lens 303, and an optically optimized structure is formed on the optimized inner matching lens 304. The optically optimized structure optimizes the uniformity of light and forms an optical shape. The outer bezel 305 is installed in front of the optimized inner lens 304, the outer bezel 305 has an optical shielding structure, and the optical shielding structure shields part of the light to enhance the optical shape. In the embodiment shown in FIG. 3, the array light curtain type vehicle lamp is arranged around the headlight, the base bracket 301, the inner lens 303 of the light curtain, the optimized inner lens 304 and the outer bezel 305 are nested and assembled in sequence, and the base bracket 301. The light curtain inner lens 303, the optimized inner lens 304, and the outer bezel 305 all have a central opening and two arc-shaped wings extending from the central opening to both sides. Since the base bracket 301, the inner lens 303 of the light curtain, the optimized inner lens 304 and the outer bezel 305 are all matched in shape and size, the base bracket 301, the inner lens 303 of the light curtain, the optimized inner lens 304 and the outer bezel 305 can be matched. The assembly is superimposed one after the other. The positions of the central openings of the base bracket 301, the inner lens 303 of the light curtain, the optimized inner lens 304, and the outer bezel 305 correspond to the position of the headlight, so that the assembled light curtain array lamp can surround the front large Around the lights.

Referring to FIG. 3 and FIG. 4, the LED assembly 302 is installed on the top of the base bracket 301, and several LED light sources 322 are arranged on the circuit board 321. Several LED light sources 322 generate light in the vertical direction and irradiate downward. In the illustrated embodiment, the light generated by several LED light sources 322 irradiate vertically downward to the inner side of the lens 303 in the light curtain.

The main function of the lens 303 in the light curtain is to change the direction of the light and homogenize the light to obtain the effect of the light curtain. In one embodiment, an optical pattern is formed on the inner side of the lens 303 in the light curtain, and the optical pattern converts light in a vertical direction into light in a horizontal direction. In the illustrated embodiment, the optical pattern 331 formed on the inner side of the lens 303 in the light curtain is a uniformly distributed horizontal stripe on the inner side of the two arc-shaped wings of the lens 303 in the light curtain. The optical pattern 331 will be vertical. Directional light is converted into evenly distributed horizontal light, showing the form of a light curtain.

The main function of optimizing the internal lens 304 is to further optimize the uniformity of light and form an optical shape. In one embodiment, the optical optimization structure on the optimized inner lens 304 includes an arc-shaped light-transmitting plate 341 and a light-transmitting bump 342. The arc-shaped light-transmitting plate 341 optimizes the uniformity of light, and the light-transmitting bumps 342 form an optical shape. In the illustrated embodiment, the arc-shaped light-transmitting plate 341 of the optimized inner lens 304 forms two arc-shaped wings, and the light-transmitting bumps 342 are formed on the arc-shaped light-transmitting plate 341. The number, shape, size and position of the light-transmitting bumps 342 are determined according to the required optical shape. In the illustrated embodiment, the required optical shape is dot-matrix light spots arranged in an array, so the light-transmitting bumps 342 arranged in an array are formed on the arc-shaped light-transmitting plate 341. Due to the arc structure of the arc-shaped light-transmitting plate 341, the light-transmitting bumps 342 arranged on the arc-shaped light-transmitting plate 341 are spatially distributed along the arc-shaped surface. In order to obtain the optical effect of the dot-matrix light spots arranged in an array from the front, the size, shape and position of the light-transmitting bumps 342 arranged on the arc-shaped light-transmitting plate 341 are slightly adjusted to obtain the required optical shape.

The outer bezel 305 is arranged in front of the optimized inner lens 304, and the main function of the outer bezel 305 is to shield part of the light through the optical shielding structure to enhance the display effect of the optical shape. In the illustrated embodiment, the shielding structure of the outer bezel 305 is an arc-shaped plate 351 with a light-transmitting hole 352. The arc-shaped plate 351 itself does not transmit light. The arc-shaped plate 351 forms the two arc-shaped wings of the outer bezel 305, and the light-transmitting hole 352 matches the light-transmitting bump 342 on the optimized inner lens 304. The opaque curved plate 351 and the light-transmitting hole 352 cooperate with the light-transmitting bump 342 to enhance the optical shape. In the illustrated embodiment, the number, shape, size and position of the light-transmitting holes 352 on the arc-shaped plate 351 correspond to the light-transmitting bumps 342 on the optimized inner lens 304 in a one-to-one correspondence. Since the arc-shaped plate 351 is opaque, only the light-transmitting holes 352 can transmit light, so that the optical shape formed by the light-transmitting bumps 342 can be more prominent, such as the array row formed in the embodiment shown in the figure. The display effect of the dot-matrix light dots of the cloth.

The above-mentioned embodiments are provided for those skilled in the art to implement or use the present invention. Those skilled in the art can make various modifications or changes to the above-mentioned embodiments without departing from the inventive idea of the present invention. The protection scope of the present invention is not limited by the above-mentioned embodiments, but should be the maximum scope that meets the innovative features mentioned in the claims.

Claims

An array light curtain type vehicle lamp is characterized in that it comprises:

Base bracket, the base bracket is installed on the car body structure;

LED components, the LED components are installed on the base bracket, the LED components include the circuit board and the LED light source;

The light curtain is equipped with a lens, which is installed in front of the base bracket, and the light curtain is equipped with a lens to convert the light emitted by the LED light source into uniform horizontal light in the form of the light curtain;

Optimize the internal configuration lens, install the optimized internal configuration lens in front of the internal configuration lens of the light curtain, optimize the internal configuration lens to form an optically optimized structure, and optimize the optically optimized structure to optimize the uniformity of light and form an optical shape;

The outer bezel is installed in front of the optimized inner lens. The outer bezel has an optical shielding structure, which shields part of the light to enhance the optical shape.
The array light curtain type vehicle lamp according to claim 1, wherein the array light curtain type vehicle lamp is arranged around the headlight, and the base bracket, the inner lens of the light curtain, the optimized inner lens and the outer bezel are arranged Nested and assembled in sequence, the base bracket, the inner lens of the light curtain, the optimized inner lens and the outer bezel all have a central opening and two arc-shaped wings extending from the central opening to both sides. The position of the central opening is the same as that of the headlight. The location corresponds.
The array light curtain type vehicle lamp of claim 2, wherein the LED assembly is installed on the top of the base bracket, and several LED light sources are arranged on the circuit board, and the several LED light sources generate vertical light and Illuminate downward.
The array light curtain type vehicle lamp of claim 3, wherein the inner side of the lens in the light curtain forms an optical pattern, and the optical pattern converts light in a vertical direction into light in a horizontal direction.
The array light curtain type vehicle lamp of claim 4, wherein the optical pattern is a uniformly distributed horizontal stripe on the inner side of the two arc-shaped wings with lenses distributed in the light curtain, and the optical pattern is vertically aligned. The light is converted into uniformly distributed light in the horizontal direction, presenting the form of a light curtain.
The array light curtain type vehicle lamp of claim 2, wherein the optically optimized structure on the optimized inner lens includes an arc-shaped light-transmitting plate and a light-transmitting bump, and the arc-shaped light-transmitting plate optimizes light Uniformity, light-transmitting bumps form an optical shape.
The array light curtain type vehicle lamp of claim 6, wherein the arc-shaped light-transmitting plate with optimized inner lens forms two arc-shaped wings, and the light-transmitting bumps are formed on the arc-shaped light-transmitting plate to transmit light. The number, shape, size and position of the bumps are determined according to the required optical modeling.
The array light curtain type vehicle lamp of claim 7, wherein the shielding structure of the outer bezel is an arc-shaped plate with light-transmitting holes, the arc-shaped plate does not transmit light, and the arc-shaped plate forms an arc Shaped two wings, the light-transmitting holes match the light-transmitting bumps on the optimized inner lens, and the arc-shaped plate and light-transmitting holes enhance the optical shape.
8. The array light curtain type vehicle lamp of claim 8, wherein the number, shape, size and position of the light-transmitting holes correspond to the light-transmitting bumps on the optimized inner lens in a one-to-one correspondence.