WO2020173073A1

WO2020173073A1 - Vehicle lamp concentrator and vehicle lamp module

Info

Publication number: WO2020173073A1
Application number: PCT/CN2019/104676
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: CN109724044A

Abstract

A vehicle lamp concentrator and a vehicle lamp module using the concentrator. A vehicle lamp concentrator, which is made of a transparent material, and a main body of which is provided from the rear end to the front end with at least one bend. The bent part has a total reflection surface (1-3), and the direction of only the last bend is the rear-to-front direction. The front end is provided with a light exit surface (1-5), the rear end is provided thereon with several light-concentrating structures (1-1), and each light-concentrating structure (1-1) respectively corresponds to a light source (2). The size of the concentrator and the vehicle lamp module using the concentrator in the front-to-rear direction is greatly reduced, such that the overall size of the module is smaller, the weight is lighter, and the effective utility rate of the inner space of the vehicle lamp and the flexibility of the modeling design of the vehicle lamp are improved.

Description

Car light condenser and car light module

Technical field

The invention relates to a vehicle lamp concentrator and a vehicle lamp module using the concentrator, belonging to the technical field of vehicle lamps.

Background technique

The concentrating structure of the existing concentrator is arranged in a compact arrangement of multiple rows and multiple columns, but the overall structure of the concentrator is a shape extending in the front-to-back direction. For example, the Chinese patent with publication number CN207762811U and publication date on August 24, 2018 The literature discloses a concentrator and a car lamp module. The size of the concentrator in the longitudinal direction (that is, the front and rear direction) is larger, which will make the car lamp module adopting the concentrator have a larger size in the length direction. Large, the flexibility of the arrangement in the limited space in the car lamp is not high, especially the current depth of the lamp body in the front and rear direction has a tendency to become smaller and smaller, such a condenser and the car adopting the condenser The application of lamp modules is even more limited. In addition, the long length of the condenser also makes the size of other parts (such as radiators) that need to be configured for the lamp module also larger, so that the overall size of the lamp module is larger, the module is heavier, and the cost of the module is also larger. Higher. Although the article also mentions that the light channel extends linearly from back to front or is bent, it does not explain how to bend, and the direction and purpose of the bend.

Therefore, how to provide the lengthwise size of the condenser to be reduced by realizing the bending structure, thereby reducing the overall volume, so as to improve the flexibility of the arrangement in the limited space in the vehicle lamp, has become a technical problem to be solved urgently in this field.

Summary of the invention

The utility model aims to provide a concentrator and a car lamp module, so that the size of the concentrator and the car lamp module adopting the concentrator in the front and rear directions is greatly reduced, so that the overall size of the module is more Smaller and lighter in weight, it improves the effective utilization of the space in the lamp and the flexibility of the lamp design.

The utility model adopts the following technical solutions:

A car lamp condenser, made of transparent material, the main body has at least one bend from the rear end to the front end, the bending part has a total reflection surface 1-3, and only the last bending direction is from the rear In the front direction, the front end has a light-emitting surface 1-5; the rear end is provided with a number of light-concentrating structures 1-1, each of which corresponds to a light source.

Further, the bending angle is 90°, and the total reflection surface 1-3 is a flat surface, and the bending portion is arranged at 45°.

Further, starting from the light concentrating structure 1-1 at the rear end, the main body of the concentrator is sequentially the light upper and lower channels 1-2, the light front and rear channels 1-4, and the light exit surface 1-5 at the front end of the light front and rear channels 1-4.

Furthermore, there are at least three light-concentrating structures 1-1, and they are closely arranged in multiple rows, at least one light-concentrating structure 1-1 and other adjacent light-concentrating structures 1-1 are not There are less than two, and at least one of the other adjacent light-concentrating structures 1-1 is located in a direction other than the horizontal and vertical directions of the light-concentrating structure.

Still further, the opening of the light-concentrating structure 1-1 is arranged in an upward or downward direction; the total reflection surface 1-3 is a flat surface or a curved surface.

Further, the acute angle of the angle between the total reflection surface 1-3 and the direction in which the light front and rear channels 1-4 extend forward and backward is in the range of 0° to 60°.

Furthermore, the angle between the upper and lower channels 1-2 of the light and the channels 1-4 before and after the light is ≥30° and <180°.

Furthermore, the light-emitting surface 1-5 is a flat surface or a curved surface.

Furthermore, at least one of the front and back of the light upper and lower channels 1-2, the total reflection surface 1-3, or the upper and lower surfaces of the light front and rear channels 1-4 is plated with a reflection enhancement film The light-emitting surface 1-5 is plated with an anti-reflection film; the upper or lower boundary line of the light-emitting surface 1-5 is set in the shape of a cut-off line.

A vehicle lamp module adopts the above-mentioned condenser; the LED light source 2 arranged corresponding to the light-concentrating structure 1-1, the lens 3 is arranged corresponding to the light-emitting surface, and the LED light source faces the light-concentrating structure 1- 1. The light exit surface 1-5 faces the rear end surface of the lens 3, and the minimum distance between the focal point of the lens 3 and the light exit surface 1-5 is ≤ 3 mm.

Further, the lens 3 is a double convex lens.

When the car light module is working, the effective light emitted by the LED light source 2 that forms the shape of the car light is collected by the light collecting structure 1-1, refracted and reflected, and then continues to propagate in the upper and lower light channels 1-2. Then after being reflected by the total reflection surface 1-3, the direction of light propagation is changed to the front-rear direction, and it continues to propagate forward in the front and rear channels 1-4 of the light, and finally it is refracted by the light-emitting surface 1-5 and then injected The lens 3 is refracted by the lens 3 and then emitted forward to form a vehicle light shape.

The beneficial effects of the present invention are:

1) Due to the innovative design of adding a total reflection surface, the light channel of the condenser is divided into two sections, namely the upper and lower channels of the light and the front and rear channels of the light, so that the overall size of the condenser in the front and rear directions is significantly reduced, thereby As a result, the size of the car light module in the front and rear direction using this type of concentrator is also reduced. Therefore, the flexibility of the arrangement of the car light module in the space with a limited depth in the front and rear direction of the car light is improved, which is more conducive to the car light. Styling design.

2) Due to the structural design of the light upper and lower channels, the total reflection surface and the front and rear channels of the light after the light channel on the condenser is divided, the size of the module parts such as the radiator is also significantly reduced. Accordingly, the entire car light The weight of the module is reduced, the module is lighter and the cost is lower.

3) Since the condenser in the car light module is designed to be bent at least once, the light source of the car light module as the heat source is correspondingly arranged in the lower part, and the emitted heat is naturally transferred upwards, making the car light module The heat dissipation performance of the radiator has been improved to a large extent; the size of the radiator can also be reduced accordingly. Accordingly, the weight and volume of the radiator are reduced, and the weight and volume of the module are reduced, and the cost is reduced.

4) Since the lens of the car light module is set as a biconvex lens, the size and weight of the lens and the car light module are reduced. In addition, the cut-off line dispersion of this car light module is better, and the risk of sunlight focusing is higher. Low, which is the optical characteristic of a lenticular lens.

Description of the drawings

Figure 1 is a side view of the condenser in the first embodiment;

FIG. 2 is one of the three-dimensional structural diagrams of the condenser of FIG. 1;

Fig. 3 is a second three-dimensional structural view of the condenser of Fig. 1;

Fig. 4 is the third three-dimensional structural diagram of the condenser of Fig. 1;

Fig. 5 is a three-dimensional structural diagram of a vehicle lamp module in the first embodiment;

Fig. 6 is a schematic diagram of the longitudinal section and light direction of Fig. 5;

Figure 7 is a side view of the condenser in the second embodiment;

FIG. 8 is one of the three-dimensional structural diagrams of the condenser of FIG. 7;

Fig. 9 is a second three-dimensional structural view of the condenser of Fig. 7;

Fig. 10 is the third three-dimensional structural view of the condenser of Fig. 7;

Fig. 11 is a three-dimensional structural diagram of a vehicle lamp module in the second embodiment;

FIG. 12 is a schematic diagram of the longitudinal section and light direction of FIG. 11.

Reference signs: 1. Condenser, 1-1. Condensing structure, 1-2. Light upper and lower channels, 1-3. Total reflection surface, 1-4. Light front and rear channels, 1-5. Light emitting surface, 2 .LED light source, 3. lens.

detailed description

Hereinafter, the present utility model will be further described with reference to the drawings and specific embodiments.

Example one:

A concentrator made of transparent materials, as shown in Figure 1-4, its structure includes a light-concentrating structure 1-1, a light upper and lower channel 1-2, a total reflection surface 1-3, and a light front and rear channel 1 -4 and the light-emitting surface 1-5, the lower end of the light upper and lower channels 1-2 is provided with 6 light-concentrating structures 1-1, which are arranged in multiple rows and arranged in the vertical direction of the light upper and lower channels 1-2. -1 The opposite end is provided with a total reflection surface 1-3, which connects the back end of the light upper and lower channels 1-2 and the front and rear channels 1-4, and the front surface of the front and rear channels 1-4 is set to emit light Faces 1-5.

In addition, as shown in Figures 1-4, the opening of the light-concentrating structure 1-1 is set in an upward direction, the total reflection surface 1-3 is a flat surface, and the total reflection surface 1-3 and the light front and rear channels 1-4 extend forward and backward. The acute angle of the direction included angle is 45°, the angle between the upper and lower channels 1-2 of the light and the channels 1-4 before and after the light is about 90°, and the light-emitting surface 1-5 is a curved surface.

As shown in FIGS. 2 and 3, the lower boundary line of the light exit surface 1-5 is set in the shape of a cut-off line, and is in the shape of a cut-off line of the low beam, and the light shape of the low beam can be formed by the condenser.

The concentrator is arranged in a car light module, as shown in Figure 5, the car light module includes a condenser 1, an LED light source 2 and a lens 3 arranged corresponding to the condensing structure 1-1, and the LED light source The light-emitting surface faces the condensing structure 1-1, the light-emitting surface of the condenser 1 faces the rear surface of the lens 3, and the focal point of the lens 3 is overlapped with the light-emitting surface 1-5 of the condenser 1, so that Form a clear cut-off line.

As shown in Figure 6, the effective light emitted by the LED light source 2 forms the shape of the vehicle light. After being collected, refracted and reflected by the light collecting structure 1-1, it continues to propagate upward in the upper and lower light channels 1-2, and then undergoes total reflection. After surface 1-3 is reflected, the direction of light propagation is changed to the front and back direction, and it continues to propagate forward in the front and back channels 1-4, and finally enters lens 3 after being refracted by the light exit surface 1-5, and then forwards after being refracted by lens 3 It shoots out to form a car light shape.

Embodiment two:

The difference between this embodiment and the second embodiment lies in the specific setting directions of the light-concentrating structure 1-1, the light upper and lower channels 1-2, and the total reflection surface 1-3 of the condenser 1 are different.

A light concentrator made of transparent materials, as shown in Figure 7-10, its structure includes light-concentrating structure 1-1, light upper and lower channels 1-2, total reflection surface 1-3, and light front and rear channels 1 -4 and the light-emitting surface 1-5, the upper end of the light upper and lower channel 1-2 is provided with 6 light-concentrating structures 1-1, which are arranged in multiple rows and are arranged in the vertical direction of the light upper and lower channels 1-2. -1 The opposite end is provided with a total reflection surface 1-3, which connects the back end of the light upper and lower channels 1-2 and the front and rear channels 1-4, and the front surface of the front and rear channels 1-4 is set to emit light Faces 1-5.

In addition, as shown in Figure 7-10, the opening of the concentrating structure 1-1 is set in a downward direction, the total reflection surface 1-3 is flat, and the total reflection surface 1-3 and the light front and rear channels 1-4 extend back and forth. The acute angle of the direction included angle is 45°, the angle between the upper and lower channels 1-2 of the light and the channels 1-4 before and after the light is about 90°, and the light-emitting surface 1-5 is a curved surface.

As shown in FIGS. 8 and 9, the lower boundary line of the light exit surface 1-5 is set in the shape of a cut-off line, and is in the shape of a cut-off line of the low beam, and the light shape of the low beam can be formed by the condenser.

A car light module adopting such a condenser, as shown in FIG. 11, the car light module includes a condenser 1, an LED light source 2 and a lens 3 arranged corresponding to the condensing structure 1-1, and the LED light source The light-emitting surface faces the condensing structure 1-1, the light-emitting surface of the condenser 1 faces the rear surface of the lens 3, and the focal point of the lens 3 is overlapped with the light-emitting surface 1-5 of the condenser 1, so that Form a clear cut-off line.

As shown in Figure 12, the effective light emitted by the LED light source 2 forms the shape of the vehicle light. After being collected, refracted and reflected by the light collecting structure 1-1, it continues to propagate downward in the upper and lower light channels 1-2, and then passes through the entire After the reflection surface 1-3 reflects, the direction of light propagation is changed to the front and back direction, and it continues to propagate forward in the channels 1-4 before and after the light. Finally, it is refracted by the light exit surface 1-5 and then enters the lens 3, and is refracted by the lens 3 back. The front shot forms a car light shape.

The utility model is used for automobile lighting and is placed in the headlight of the automobile. Compared with the existing concentrators and car light modules, through the optimization of the specific concentrator structure and the optical and structural design of the system, the size of the concentrator and the car light module adopting the concentrator Weight, volume, cost, etc. can be reduced and optimized.

The front and back, left and right, and up and down of the utility model are consistent with the front and back, left and right, and up and down of the body coordinate system when the condenser and the headlight module are installed on the body, and the lens optical axis is in the same direction as In the front-rear direction, the direction on the side where the condenser is located is the rear end, and the light-emitting direction of the lens is the front end. As shown in Figure 5 and Figure 11.

The above are two optional embodiments of the present utility model. 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 utility model, these changes or improvements should be made. It belongs to the scope of protection of the utility model.

Claims

A car lamp condenser made of transparent material, characterized in that the main body has at least one bend from the rear end to the front end, and the bending part has a total reflection surface (1-3), and only the last bend The direction is from back to front, the front end has a light-emitting surface (1-5); the rear end is provided with a number of light-concentrating structures (1-1), and each light-concentrating structure (1-1) is connected to One light source corresponds.
The vehicle lamp concentrator according to claim 1, characterized in that the bending angle is 90°, the total reflection surface (1-3) is a flat surface, and the bending part is arranged at 45°.
The vehicle light concentrator according to claim 1, characterized in that: starting from the light concentrating structure (1-1) at the rear end, the main body of the concentrator is the light upper and lower channels (1-2), and the light front and rear channels (1) -4), and the light-emitting surface (1-5) at the front end of the light front and rear channels (1-4).
The vehicle light concentrator according to claim 1, 2 or 3, characterized in that: the concentrating structure (1-1) has at least three, and they are arranged closely in multiple rows, and there is at least one concentrating structure (1-1). The light structure (1-1) has no less than two other adjacent light-concentrating structures (1-1), and at least one other adjacent light-concentrating structure (1-1) is located in the Light structure in directions other than the horizontal and vertical directions.
The vehicle lamp concentrator according to claim 3, characterized in that: the opening of the light-concentrating structure (1-1) is arranged in an upward or downward direction; the total reflection surface (1-3) is Flat or curved surface.
The vehicle light concentrator according to claim 3, characterized in that: the acute angle of the angle between the total reflection surface (1-3) and the front and rear channels (1-4) extending forward and backward is 0° to 60°.
The vehicle lamp concentrator according to claim 3, characterized in that: the angle between the upper and lower light channel (1-2) and the front and rear light channel (1-4) is ≥30° and <180°.
The vehicle lamp concentrator according to claim 3, characterized in that: the light-emitting surface (1-5) is a flat surface or a curved surface.
The vehicle light concentrator according to claim 3, characterized in that: the front and back of the light upper and lower channels (1-2), the total reflection surface (1-3), or the front and rear light channels ( At least one of the upper and lower surfaces of 1-4) is plated with an anti-reflection film; the light-emitting surface (1-5) is plated with an anti-reflection film; the upper boundary line of the light-emitting surface (1-5) or The lower boundary line is set to the cut-off line shape.
A vehicle lamp module, characterized in that: the condenser according to any one of claims 1-9 is adopted; the LED light source (2) provided corresponding to the concentrating structure (1-1) corresponds to the A lens (3) is provided on the light-emitting surface, the LED light source faces the condensing structure (1-1), and the light-emitting surface (1-5) faces the rear end surface of the lens (3), and the lens (3) The minimum distance between the focal point and the light-emitting surface (1-5) is ≤3mm.
The vehicle lamp module according to claim 10, wherein the lens (3) is a biconvex lens.