A reflector structure and vehicle lamp

Abstract

This invention relates to the field of automotive lighting technology, and in particular to a reflector structure and an automotive lighting fixture. The sidewall of the reflector is provided with a light distribution pattern, which includes a first viewing angle pattern and a second viewing angle pattern. The first viewing angle pattern is a uniformly distributed corn kernel pattern, and the second viewing angle pattern is a stripe pattern. Light from the LED light source, whether directly incident or reflected onto the sidewall, is reflected by the first viewing angle pattern to produce light at an angle of 50°-80°, and light from the LED light source, whether directly incident or reflected onto the sidewall, is reflected by the second viewing angle pattern to produce light at an angle of 30°-60°. This invention can solve the problem that existing automotive lighting fixtures cannot meet the requirements for a wide viewing angle.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle lamps, and specifically relates to a reflector structure and a vehicle lamp. Background Art

[0002] Automobile lighting regulations require that some functions of the lights, such as turn signals and position lights, must meet the requirements of a wide angle viewing angle of 45° inside and 80° outside. At present, reflective headlights still account for a large proportion of the automotive lighting field due to their simple structure. The wide angle light of reflective lamps is obtained by reflecting the LED light source from the side wall, but the reflection efficiency of the side wall of the reflector is very low, and some cannot reach the wide angle required by the regulations for headlights. With the changes in the shape, the light-emitting surface of reflective headlights becomes smaller, and the area of ​​the side wall of the reflector that can be seen at a wide angle is getting smaller and smaller. The traditional side wall surface cannot meet the regulatory requirements for viewing angles, which puts higher requirements on the light-emitting surface area and tilt angle.

[0003] Some manufacturers add visual angle patterns to the surface of the inner or outer lampshade, adjust the angle of the pattern, and use the refraction of light to solve the visual angle regulations. However, this method can easily destroy the overall aesthetics of the lamp. Summary of the invention

[0004] The object of the present invention is to provide a reflector structure and a vehicle lamp to solve the problem that the vehicle lamp in the prior art cannot meet the requirement of a large-angle viewing angle.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a reflector structure, the side wall of the reflector is provided with a light distribution pattern, the light distribution pattern includes a first visible viewing angle pattern and a second visible viewing angle pattern, the first visible viewing angle pattern is a uniformly distributed corn kernel pattern, the second visible viewing angle pattern is a strip pattern, the light directly irradiated or reflected by the LED light source to the side wall is reflected as 50°-80° of light through the first visible viewing angle pattern, and the light directly irradiated or reflected by the LED light source to the side wall is reflected as 30°-60° of light through the second visible viewing angle pattern.

[0006] Preferably, the first visible viewing angle pattern is integrally arranged with the reflector, and the demoulding angle of the first visible viewing angle pattern faces outward.

[0007] Preferably, the first visible viewing angle pattern is a separate aluminum-plated part, and the first visible viewing angle pattern is clipped onto the reflector by means of a buckle.

[0008] A vehicle lamp comprises a housing, a PCB board, an LED light source, a decorative ring and an outer lampshade, and also comprises the above-mentioned reflector structure, wherein the PCB board and the reflector are directly fixed and fixed together to the housing, the decorative ring is located between the outer lampshade, the housing and the reflector, the decorative ring is fixed to the housing by means of buckles and screws, and the LED light source is located on the reflective surface of the reflector.

[0009] Compared with the prior art, the beneficial effects of the present invention are: the present invention does not destroy the overall aesthetics of the shape, and can achieve large-angle light emission of the lamp through the reflection of the light distribution pattern on the side wall of the reflector (especially the first visual angle pattern) in the case of a small visible surface, meet the regulatory visual angle requirements, have high light utilization efficiency, and the mold is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A partial schematic diagram of a large-angle structure of the reflector structure provided by the present invention after installation;

[0011] Figure 2 It is a light schematic diagram of the present invention;

[0012] Figure 3 This is a schematic diagram of the structure of the first viewing angle pattern of the present invention as an aluminum-plated part;

[0013] Figure 4 A cross-sectional view of a vehicle lamp provided by the present invention.

[0014] In the figure: 1. Shell, 2. Reflector, 201. First visual angle pattern, 202. Reflection surface, 203. Second visual angle pattern, 3. Decorative ring, 4. External lampshade, 5. Aluminum-plated part, 6. LED light source. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] See also Figure 1-3 The present invention provides a technical solution: a reflector structure, the side wall of the reflector 2 is provided with a light distribution pattern, the light distribution pattern includes a first viewing angle pattern 201 and a second viewing angle pattern 203, wherein the first viewing angle pattern 201 is a uniformly distributed corn kernel pattern, the second viewing angle pattern 203 is a stripe pattern, the light directly irradiated or reflected to the side wall by the LED light source 6 is reflected by the first viewing angle pattern 201 to achieve a large angle of light emission of 50°-80°, the light directly irradiated or reflected to the side wall by the LED light source 4 is reflected by the second viewing angle pattern 203 to achieve a light of 30°-60°, such as Figure 1As shown, when observing the reflector 2 installed on the lamp from a large angle, due to the obstruction of other components, for example, the decorative ring 3, only a small part of the side wall of the reflector 2 can be seen, and the light cannot be reflected to a large angle, and the reflection efficiency is also low. However, the visible side wall has a first visible angle pattern 201. Although the first visible angle pattern 201 is small, the light directly irradiated or reflected by the LED light source 6 onto the first visible angle pattern 201 can meet the requirements of the large-angle visible angle area of ​​the regulations after being reflected by the first visible angle pattern 201. For example, the turn signal and the position light need to meet 45° inside and 80° outside. The optical path diagram is as shown in Figure 2 As shown, in addition, by Figure 2 It can be seen that except for a small piece of the first visible viewing angle pattern 201 on the side wall of the reflector 2, the remaining strip patterns are all second visible viewing angle patterns 203. The reflector 2 structure provided in the present application can achieve the requirement of large-angle light emission of the lamp by reflecting the first visible viewing angle pattern 201 on the side wall when the visible surface is small.

[0017] Specifically, the first viewing angle pattern 201 is integrally arranged with the reflector 2, and the demoulding angle of the first viewing angle pattern 201 faces outward. During production, the demoulding problem of the reflector 2 can be solved by adding a slider to the mold, and the mold is simple and easy to use.

[0018] Further, such as Figure 3 As shown, the first viewing angle pattern 201 can also be a separate aluminum-plated part 5. The first viewing angle pattern 201 is connected to the reflector 2 by a buckle, which will not destroy the overall aesthetics and can also achieve large-angle light emission of the lamp in a small visible area.

[0019] The present invention also provides a vehicle lamp, such as Figure 4 As shown, it includes a shell 1, a PCB board, an LED light source 6, a decorative ring 3, an outer lamp cover 4 and the above-mentioned reflector 2 structure. The PCB board and the reflector 2 are directly fixed and fixed together on the shell 1. The decorative ring 3 is located between the outer lamp cover 4, the shell 1 and the reflector 2. The decorative ring 3 is fixed to the shell 1 by buckles and screws. The LED light source 6 is located on the reflective surface 202 of the reflector 2. After the headlight adopts the above-mentioned reflector 2 structure, it can obtain large-angle light output, meet the requirements of headlight regulations, and the overall lighting effect is significant.

[0020] The present invention does not destroy the overall aesthetics of the shape. In the case of a small visible surface, the lamp can emit light at a large angle through the reflection of the light distribution pattern (mainly the first visual angle pattern 201) on the side wall of the reflector 2, thereby meeting the legal visual angle requirements, having high light utilization efficiency and a simple and easy mold.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reflector structure, characterized in that: The side wall of the reflector (2) is provided with a light distribution pattern, the light distribution pattern comprising a first visual angle pattern (201) and a second visual angle pattern (203), the first visual angle pattern (201) being a uniformly distributed corn kernel pattern, the second visual angle pattern (203) being a stripe pattern, the light directly irradiated or reflected by the LED light source (6) to the side wall is reflected by the first visual angle pattern (201) to produce a light beam with an angle of 50° to 80°, and the light directly irradiated or reflected by the LED light source (6) to the side wall is reflected by the second visual angle pattern (203) to produce a light beam with an angle of 50° to 80°. The vehicle lamp using the reflector structure comprises a housing (1), a PCB board, an LED light source (6), a decorative ring (3) and an outer lampshade (4); the PCB board and the reflector (2) are directly fixed and fixed together to the housing (1); the decorative ring (3) is located between the outer lampshade (4), the housing (1) and the reflector (2); the decorative ring (3) is fixed to the housing (1) by means of a buckle and a screw; and the LED light source (6) is located on a reflecting surface (202) of the reflector (2).

2. A reflector structure according to claim 1, characterized in that: The first visible viewing angle pattern (201) is integrally arranged with the reflector (2), and the demoulding angle of the first visible viewing angle pattern (201) faces outwards.

3. A reflector structure according to claim 1, characterized in that: The first viewing angle pattern (201) is a separate aluminum-plated part (5), and the first viewing angle pattern (201) is snap-connected to the reflector (2) via a buckle.

4. A vehicle lamp, characterized in that: The reflector structure comprises the reflector structure described in any one of claims 1 to 3.

Images