WO2020173071A1

WO2020173071A1 - Integrated high and low beam vehicle lamp module

Info

Publication number: WO2020173071A1
Application number: PCT/CN2019/104636
Authority: WO
Inventors: 祝贺; 仇智平; 李聪
Original assignee: 华域视觉科技(上海)有限公司
Priority date: 2019-02-25
Filing date: 2019-09-06
Publication date: 2020-09-03
Also published as: CN109630976A; WO2020173071A8

Abstract

Disclosed is an integrated high and low beam vehicle lamp module, the vehicle lamp module comprising a low-beam light source (1), a low-beam light condenser (2), a high-beam light source (3), and a high-beam light condenser (4), wherein the optical axis direction of the low-beam light source (1) is a vertical direction, and a light emission direction thereof faces downwards; the low-beam light condenser (2) is L-shaped, with one end facing upward and toward the low-beam light source (1), and the other end thereof facing forward; a bending part of the low-beam light condenser (2) has a low-beam total-reflection surface (2c); the optical direction of the high-beam light source (3) is a vertical direction, and a light emission direction thereof faces upwards; the high-beam light condenser (4) is L-shaped, with one end facing downward and toward the high-beam light source (3), and the other end thereof facing forward; and a bending part of the high-beam light condenser (4) has a high-beam total-reflection surface (4c). By means of the specific low-beam light condenser (2), the high-beam light condenser (4) and the systematic optical design thereof, the weight, the size, the heat dissipation performance, etc., of the vehicle lamp module with integrated high-beam and low-beam functions are further optimized and improved.

Description

Car light module with integrated far and near light

Technical field

The invention relates to a car lamp module, in particular to a car lamp module with a distance and near light integrated.

Background technique

The application of concentrators in car lights started from signal lights. The application development in signal lights has been very mature. In recent years, there have been more and more applications of concentrators in car light modules as a low beam function or Optical components with high beam function. The application of the condenser in the car light module is a big breakthrough, which can greatly improve the optical performance of the car light module. There are continuous innovations in the automotive lamp module technology using the condenser, which has continuously improved the overall performance of this form of automotive lamp module.

The publication date is February 22, 2017, and the Chinese patent document with the publication number CN106439672A discloses an LED light source vehicle lamp module. The module structure in the technical solution disclosed in the reference document shows that the structure of the concentrator for the low beam function and the high beam function is extended in the front and rear direction. Such a structure has the following shortcomings: 1) Concentrator extending back and forth The front-to-back dimension of the car light module is very large. The current car light has a trend of getting smaller and smaller in the front-to-rear direction. Modules with large front-to-rear dimensions have certain limitations in the arrangement of the lights; 2) The front and back extension of the condenser makes the distance between the low-beam light source and the high-beam light source of the car light module very close, which is not conducive to the heat dissipation of the car light module, and the heat dissipation performance of the car light module is poor; 3) front and rear extension The light concentrator requires a large overall volume and weight of the radiator, which makes the overall volume and weight of the vehicle lamp module large, and the cost is also high. It can be seen that the existing car lamp modules need to be further improved in terms of miniaturization, light weight, low cost, and heat dissipation performance.

Summary of the invention

The purpose of the present invention is to provide a far and near beam integrated vehicle light module, through the specific low beam condenser, high beam condenser and the optical design of the system, so that the weight, volume and The heat dissipation performance can be further optimized and improved.

The present invention adopts the following technical solutions:

A high-beam integrated vehicle light module includes a low-beam light source 1, a low-beam concentrator 2, a high-beam light source 3, and a high-beam concentrator 4. The optical axis direction of the low-beam light source 1 is up and down, and the light emitting direction Downward; the low-beam condenser 2 is L-shaped, with one end facing upwards to the low-beam light source 1, and the other end facing forward, the low-beam condenser 2 has a low-beam total reflection surface 2c; The optical axis direction is up and down, and the light emitting direction is upward; the high-beam concentrator 4 is L-shaped, one end is facing down to the high-beam light source 3, and the other end is forward. The bent part of the high-beam concentrator 4 has a high beam Total reflection surface 4c.

Further, the low-beam concentrator 2 includes a concentrator condenser cup structure 2a, a low-beam concentrator upper and lower light channels 2b, a low-beam concentrator total reflection surface 2c, and a low-beam concentrator in sequence along the optical path. The front and rear light channels 2d and the light exit surface 2e of the low-beam condenser; the high-beam condenser 4 is sequentially provided with a high-beam condenser condenser cup structure 4a, a high-beam condenser upper and lower light channels 4b, and a far beam along the optical path. The total reflection surface 4c of the light concentrator, the front and rear light channels 4d of the high-beam concentrator, and the light-emitting surface 4e of the high-beam concentrator; the opening of the condensing cup structure 2a of the low-beam concentrator faces downward, and the high-beam concentrator The opening of the condenser cup structure 4a of the optical device faces upward.

Further, the total reflection surface 2c of the low beam concentrator is a flat surface, a concave surface or a convex surface, and the total reflection surface 4c of the high beam concentrator is a flat surface, a concave surface or a convex surface.

Further, the lower side edge of the light exit surface 2e of the low beam concentrator is set in the shape of a cut-off line; the upper side edge of the light exit surface 4e of the high beam concentrator is set in the shape of a cutoff; The light exit surface 2e0 of the light concentrator is a circular arc surface with a diameter of 50mm-300mm, and the light exit surface 4e of the high beam concentrator is a circular arc surface with a diameter of 50mm-300mm.

Further, the lower side line of the light exit surface 2e of the low beam concentrator is in contact with the upper side line of the light exit surface 4e of the high beam concentrator, and the lower side of the front and rear light channels 2d of the low beam concentrator The gap with the upper side of the front and rear light channels 4d of the high beam concentrator gradually increases backward from the position where the front end contacts, and the middle air layer is wedge-shaped.

Furthermore, the lower surface of the front and rear passage 2d of the low beam concentrator is a flat surface or a curved surface, if it is a curved surface, the diameter of the arc is 100mm-500mm; the lower surface of the front and rear passage 4d of the high beam concentrator is Plane or arc, if it is arc, the diameter of the arc is 100mm-500mm.

Furthermore, the material of the low-beam concentrator 2 and the high-beam concentrator 4 is transparent plastic or silica gel, or PC material.

Furthermore, it also includes a lens 5 which is arranged at the front end of the exit surface of the low-beam condenser 2 and the high-beam condenser 4; the lens 5 is a double convex lens; the material of the lens 5 is Glass, plastic or silicone.

Furthermore, the material of the lens 5 is PMMA with a refractive index of 1.49-1.51.

Furthermore, the low-beam light source 1 and the high-beam light source 3 are LED light sources or laser light sources; the number of the low-beam light sources 1 is greater than or equal to 4, and the number of light-emitting chips near the middle is greater than or equal to the number of light sources on both sides. The number of chips; the number of the high beam light source 3 is greater than or equal to 2, the number of the low beam concentrator condenser cup structure 2a is greater than or equal to the number of the low beam light source 1, and each of the low beam light sources has Surrounded by the low-beam condenser condenser cup structure 2a, the number of the high-beam condenser condenser cup structures 4a ≥ the number of the low-beam light source 3, and each high beam The light sources are all surrounded by the low beam concentrator condenser cup structure 4a.

Furthermore, the total reflection surface 2c of the low-beam concentrator or the lower side of the front and rear light channels 2d of the low-beam concentrator is provided with an antireflection film, and the light exit surface 2e of the low-beam concentrator is provided with an antireflection film. The high-beam concentrator total reflection surface 4c or the upper side of the front and rear light channels 4d of the high-beam concentrator is provided with an antireflection film, and the light-emitting surface 4e of the high-beam concentrator is provided with an antireflection film; The rear light-incident surface or the front light-emitting surface of the lens 5 is provided with an antireflection film.

In the above-mentioned method for condensing a vehicle lamp module with a far and near beam, the light emitted by the low beam light source 1 is first refracted into the condensing cup structure 2a of the low beam concentrator, and after being refracted and reflected, the light in the near The light concentrator continues to propagate downward in the upper and lower light channels 2b, and then the light is totally reflected on the total reflection surface 2c of the condenser, and then propagates forward in the front and rear light channels 2d of the low-beam condenser. The light exit surface 2e of the low beam concentrator enters the lens 5 after being refracted by the lens 5, and then exits forward to form a low beam light shape; the light emitted by the high beam light source 1 is first refracted and enters the high beam concentrator. The cup structure 4a, after its refraction and reflection, continues to propagate upward in the upper and lower light channels 4b of the high beam concentrator, and then the light is totally reflected on the total reflection surface 4c of the concentrator, and then in the far beam The light concentrator propagates forward in the front and rear light channels 4d, and enters the lens 5 after being refracted by the light exit surface 4e of the high beam concentrator, and then exits forward after being refracted by the lens 5 to form a high beam light shape.

The beneficial effects of the present invention are:

1) The low-beam condenser and the high-beam condenser in the car light module are set to extend in the front-rear direction and bend like an "L", which greatly reduces the front-rear direction of the module. Optimized and improved the overall size of the front and near beam integrated car light module to make it more compact;

2) Set the low-beam condenser and high-beam condenser in the car light module into an "L"-like bent shape extending in the front and rear directions, and the low-beam condenser and the high-beam condenser are respectively Arranged one above the other, the condenser cup structures on the low beam and high beam concentrators are respectively located at the upper and lower parts of the module space, so that the low beam light source and the high beam light source of the car light module are also set accordingly In the upper and lower part of the module space, the two functional light sources are separated by a certain distance, and the low beam LED, which accounts for the main power, is arranged on the upper part, which greatly improves the heat dissipation performance of the car light module;

3) Through the special design of the low-beam condenser and the high-beam condenser, the volume of the radiator matched with it is also reduced correspondingly, realizing the advantages of small size, light weight and low cost;

4) The use of biconvex lens makes the lens volume smaller, and the risk of sunlight focusing is small, and the dispersion of the car light module is also better.

Description of the drawings

Fig. 1 is a schematic diagram of the three-dimensional structure of a vehicle lamp module assembly with an integrated far and near beam of the present invention;

Fig. 2 is a longitudinal cross-sectional view of the vehicle light module assembly shown in Fig. 1;

Fig. 3 is a perspective view of the optical element structure of a car light module with integrated far and near light;

4 is a longitudinal cross-sectional view of the optical element of the vehicle light module with integrated far and near light shown in FIG. 3;

Fig. 5 is a schematic diagram of the light direction of the vehicle lamp module with integrated far and near light according to the present invention.

Among them, 1-low-beam light source, 2-low-beam condenser, 3-high-beam light source, 4-high-beam condenser, 5-lens, 2a-low-beam condenser condenser cup structure, 2b-low-beam The upper and lower light channels of the condenser, 2c-the total reflection surface of the low-beam condenser, 2d-the front and rear light channels of the low-beam condenser, 2e-the light-emitting surface of the low-beam condenser, 4a-the condenser cup structure of the high-beam condenser , 4b-high-beam condenser upper and lower light channels, 4c-high-beam condenser total reflection surface, 4d-high-beam condenser front and rear light channels, 4e-high-beam condenser light exit surface, R1-low-beam light, R2-High beam light.

detailed description

The present invention will be further described below in conjunction with the drawings and specific embodiments.

As shown in Figures 1 and 2, the optical components of the integrated car light module include a low beam light source 1, a low beam condenser 2, a high beam light source 3, a high beam condenser 4 and a lens 5. The material of the light condenser 2 and the high beam condenser 4 is a PC material with a refractive index of about 1.587, the material of the lens 5 is a PMMA material with a refractive index of about 1.49, and the lens 5 is a biconvex lens.

The optical axis direction of the low beam light source 1 is up and down, and the light emitting direction is downward;

The optical axis direction of the high beam light source 3 is up and down, and the light emitting direction is upward.

As shown in Fig. 3, both the low beam light source and the high beam light source are LED light sources, and the number of light emitting chips of the low beam light source near the middle of the LED light source is 3, and the rest are single-chip LED light sources.

With reference to Figures 3 and 4, the number of the low-beam condenser condenser cup structure 2a is 6, and each low-beam light source is surrounded by the low-beam condenser condenser cup structure 2a, and the high-beam condenser The number of the condenser cup structures 4a is 3, and each high-beam light source is surrounded by the condenser cup structure 4a of the low-beam condenser.

Continuing to refer to 3 and 4, the low-beam condenser 2 is provided with a low-beam condenser condenser cup structure 2a, a low-beam condenser upper and lower light channels 2b, a low-beam condenser total reflection surface 2c, and a low-beam condenser. The front and rear optical channels 2d and the low-beam concentrator light-emitting surface 2e;

4, the high-beam condenser 4 is provided with a high-beam condenser condenser cup structure 4a, a high-beam condenser upper and lower light channels 4b, a high-beam condenser total reflection surface 4c, and high-beam condenser front and rear light Channel 4d and the light-emitting surface 4e of the high-beam concentrator; the opening of the low-beam concentrator condenser cup structure 2a faces downward, the opening of the high-beam concentrator condenser cup structure 4a faces upward, and the upper and lower channels 2b of the low-beam condenser The upper and lower channels 4b of the high-beam concentrator and the high-beam concentrator all extend in the vertical direction, the front and rear optical channels 2d of the low-beam concentrator and the front and rear optical channels 4d of the high-beam concentrator both extend in the vertical direction.

Refer to Figure 3-4, the total reflection surface 2c of the low-beam concentrator connects the upper and lower light channels 2b of the low-beam concentrator and the front and rear light channels 2d of the low-beam concentrator, and is arranged on the outside of the corner where the two connect; The total reflection surface 4c of the condenser is connected to the upper and lower light channels 4b of the high-beam condenser and the front and rear light channels 4d of the low-beam condenser, and is arranged on the outside of the connecting corner of the two.

In specific work, as shown in Figure 5, the light emitted by the low-beam light source 1 is first refracted into the low-beam condenser condenser cup structure 2a, and after being refracted and reflected, it continues in the upper and lower light channels 2b of the low-beam condenser Propagation downwards, and then the light is totally reflected on the total reflection surface 2c of the condenser, and then propagates forward in the front and rear light channels 2d of the low-beam condenser, and enters the lens 5 after being refracted by the light-emitting surface 2e of the low-beam condenser. After being refracted by the lens 5, it is emitted forward to form a low beam light shape; the light emitted by the high beam light source 1 is first refracted into the high beam concentrator condenser cup structure 4a, and after being refracted and reflected, it is above and below the high beam concentrator The light channel 4b continues to propagate upward, and then the light is totally reflected on the total reflection surface 4c of the condenser, and then propagates forward in the light channel 4d before and after the high-beam condenser, after being refracted by the light-emitting surface 4e of the high-beam condenser It enters the lens 5, is refracted by the lens 5, and shoots forward to form a high beam light shape.

In this embodiment, as shown in FIGS. 3-5, the total reflection surface 2c of the low beam concentrator is a flat surface, the total reflection surface 4c of the high beam concentrator is a flat surface, and the lower side of the light exit surface 2e of the low beam concentrator A cut-off line shape is provided at the side line to form a low-beam shape with a cut-off line, and a cut-off line shape is provided at the upper side line of the light exit surface 4e of the high beam concentrator to form a cut-off line High beam light shape.

As shown in Fig. 3, the light exit surface 2e of the low beam concentrator is a circular arc surface with a diameter of 150 mm, and the light exit surface 4e of the high beam concentrator is a circular arc surface with a diameter of 120 mm. In addition, the lower side line of the light-emitting surface 2e of the low-beam condenser is in contact with the upper side line of the light-emitting surface 4e of the high-beam condenser, and the lower side of the front and rear light channels 2d of the low-beam condenser is in contact with the front and rear light of the high-beam condenser. The gap between the upper sides of the channels 4d gradually increases from the position where the front end contacts, and the middle air layer is wedge-shaped.

The invention is used for the far and near beam lighting of the automobile, and is placed in the headlight of the automobile. Compared with the existing far and near beam integrated car lamp module, the weight, volume and heat dissipation performance of the far and near beam integrated car lamp module are achieved through the optical design of the specific low beam condenser, high beam condenser and their systems. Etc. to be further optimized and improved.

The front and back, up and down, and left and right referred to in this embodiment are consistent with the front and back, up and down, and left and right of the vehicle body coordinate system when the headlight of the front and low beam integrated vehicle lamp module is installed on the vehicle body. The direction in which the optical axis of the lens is located is the front and back direction, and the direction on the side where the radiator is located is the back.

The above are the preferred embodiments of the present invention, and those of ordinary skill in the art can also make various changes or improvements on this basis. Without departing from the general concept of the present invention, these changes or improvements should be claimed by the present invention. Within the range.

Claims

An integrated vehicle light module with far and near beams, comprising a low-beam light source (1), a low-beam condenser (2), a high-beam light source (3), and a high-beam condenser (4), characterized in that:

The optical axis direction of the low beam light source (1) is up and down, and the light emitting direction is downward;

The low-beam condenser (2) is L-shaped, with one end facing up to aim at the low-beam light source (1), and the other end facing forward. The bending part of the low-beam condenser (2) has a low-beam total reflection surface (2c);

The optical axis direction of the high beam light source (3) is up and down, and the light emitting direction is upward;

The high-beam concentrator (4) is L-shaped, one end faces down to aim at the high-beam light source (3), and the other end faces forward. The bent part of the high-beam concentrator (4) has a high-beam total reflection surface (4c).
The integrated far and near light vehicle light module of claim 1, wherein:

The low-beam concentrator (2) includes a concentrator condenser cup structure (2a), a low-beam concentrator upper and lower light channels (2b), a low-beam concentrator total reflection surface (2c), and The front and rear light channels (2d) of the low-beam condenser and the light exit surface (2e) of the low-beam condenser;

The high beam concentrator (4) is provided with a high beam concentrator condenser cup structure (4a), a high beam concentrator upper and lower light channels (4b), and a high beam concentrator total reflection surface ( 4c), the front and rear light channels (4d) of the high-beam condenser and the light-emitting surface (4e) of the high-beam condenser;

The opening of the condenser cup structure (2a) of the low-beam concentrator faces downward, and the opening of the condenser cup structure (4a) of the high-beam condenser faces upward.
The far and near beam integrated vehicle lamp module according to claim 1, wherein the total reflection surface (2c) of the low beam concentrator is flat, concave or convex, and the total reflection surface (2c) of the high beam concentrator is flat, concave or convex. 4c) is flat, concave or convex.
The integrated vehicle light module of far and near beam according to claim 1, characterized in that: the lower side line of the light exit surface (2e) of the low beam concentrator is set in a cut-off line shape; the high beam concentrator The upper side line of the light exit surface (4e) is set in the shape of a cut-off line; the light exit surface of the low beam concentrator (2e0 is a circular arc surface, the diameter of the arc is 50mm-300mm, and the light exit surface of the high beam concentrator (4e) is the arc surface, the diameter of the arc is 50mm-300mm.
The far and near beam integrated vehicle lamp module according to claim 1, characterized in that: the lower side line of the light exit surface (2e) of the low beam concentrator and the light exit surface (4e) of the high beam concentrator The upper side is in line contact, and the gap between the lower side of the front and rear light channels (2d) of the low-beam condenser and the upper side of the front and rear light channels (4d) of the high-beam condenser is backward from the position where the front end contacts Gradually increase, the middle air layer is wedge-shaped.
The far and near beam integrated vehicle light module according to claim 1, 4, or 5, characterized in that: the lower surface of the front and rear passage (2d) of the low beam condenser is a flat surface or a curved surface, if it is a curved surface, The diameter of the arc is 100mm-500mm; the lower surface of the front and rear passage (4d) of the high beam concentrator is a flat surface or an arc surface, if it is an arc surface, the diameter of the arc is 100mm-500mm.
The far and near beam integrated vehicle light module according to claim 1, 4, or 5, wherein the materials of the low beam concentrator (2) and the high beam concentrator (4) are transparent Plastic or silicone, or PC material.
The far and near beam integrated vehicle lamp module according to claim 1 or 2, characterized in that it further comprises a lens (5), and the lens (5) is provided in the low beam condenser (2) and the high beam condenser. The front end of the exit surface of the optical device (4); the lens (5) is a double convex lens; the material of the lens (5) is glass, plastic or silica gel.
The vehicle light module with integrated far and near light according to claim 8, characterized in that the material of the lens (5) is PMMA with a refractive index of 1.49-1.51.
The far and near beam integrated vehicle lamp module according to claim 2, characterized in that: the low beam light source (1) and the high beam light source (3) are LED light sources or laser light sources; the low beam light source (1) The number of) ≥ 4, and the number of light-emitting chips near the middle ≥ the number of light-emitting chips on both sides; the number of the high-beam light source 3 ≥ 2, the low-beam condenser condenser cup structure (2a) The number of ≥ the number of the low-beam light source (1), and each of the low-beam light sources is surrounded by the low-beam concentrator condenser cup structure (2a), and the high-beam condensing light The number of condenser cup structures (4a) is greater than or equal to the number of low-beam light sources (3), and each high-beam light source is covered by the low-beam condenser condenser cup structure (4a) Around.
The far and near beam integrated vehicle lamp module according to claim 2 or 8, characterized in that: the total reflection surface (2c) of the low beam condenser or the lower part of the front and rear light channels (2d) of the low beam condenser A reflection-increasing film is provided on the side surface, the light-emitting surface (2e) of the low-beam concentrator is provided with an anti-reflection film, the total reflection surface (4c) of the high-beam concentrator or the front and rear light channels (4d) of the high-beam concentrator The upper side of the lens (5) is provided with a reflection-increasing film, the light-emitting surface (4e) of the high beam concentrator is provided with an anti-reflection film; the rear light-incident surface or the front light-emitting surface of the lens (5) is provided with an antireflection film.
A method for condensing a vehicle light module with an integrated far and near beam according to any one of claims 1-11, wherein:

The light emitted by the low-beam light source (1) is first refracted into the low-beam condenser condenser cup structure (2a), and after being refracted and reflected, it continues in the upper and lower light channels (2b) of the low-beam condenser The light propagates downward, and then the light is totally reflected on the total reflection surface (2c) of the condenser, and then propagates forward in the front and rear light channels (2d) of the low-beam condenser, and the light is condensed by the low-beam The light exit surface (2e) of the device enters the lens (5) after being refracted, and then exits forward after being refracted by the lens (5) to form a low beam light shape;

The light emitted by the high-beam light source (1) is first refracted into the condenser cup structure (4a) of the high-beam condenser, and after being refracted and reflected, it continues in the upper and lower light channels (4b) of the high-beam condenser The light propagates upward, and then the light is totally reflected on the total reflection surface (4c) of the condenser, and then propagates forward in the front and rear light channels (4d) of the high-beam condenser, passing through the high-beam condenser The light exit surface (4e) enters the lens (5) after being refracted, and then exits forward after being refracted by the lens (5) to form a high beam light shape.