CN220749900U - A car light structure that uses multiple light sources to enter the same light surface to avoid defocusing - Google Patents

Abstract

The utility model relates to a vehicle lamp structure that utilizes a common light incident surface of multiple light sources to avoid defocusing, and mainly includes a module, a module bracket, a thick-walled part, a lamp housing, and an outer lens, and these parts are assembled together by screws, buckles, etc. The module includes a PCB board and two groups of LED light sources welded thereon, and a common light incident surface, a secondary reflection surface, and a light emitting surface are respectively provided on the bottom surface, the top surface, and the front surface of the thick-walled part, and the secondary reflection surface is inclined at 45°. The two LED light sources on the module emit light after being powered on, and the light enters each thick wall from the common light incident surface of the thick-walled part, and is reflected by its secondary reflection surface and then emitted from the light emitting surface, thereby realizing the functions of turn signal and brake light. The vehicle lamp structure provided by the utility model avoids occupying too much modeling space, and not only is the structure relatively simple, but also the manufacturing and use costs are low, and the assembly difficulty is small, while meeting the modeling requirements of customers and the requirements of vehicle lamp laws and regulations.

Description

A car light structure that uses multiple light sources to enter the same light surface to avoid defocusing

Technical Field

The utility model relates to the technical field of vehicle lamps, and in particular to a vehicle lamp structure which utilizes a common light-incident surface of multiple light sources to avoid defocusing.

Background technique

In order to meet the requirements of individuality, fashion and trendy appearance, the styling area of some car position lights on the market often extends to the outside of the car body. Based on this styling, if the traditional reflective bowl optical structure solution is used to realize the brake and turn signal lighting functions, two light entrance surfaces, that is, two focal lengths, will be required, resulting in space problems in styling, which can no longer meet customer requirements. In order to adapt to the new headlight design situation, the inventor team developed a new headlight. The two LEDs share the same light entrance, and the special angle of the optical surface of the thick-walled part solves the space problem, and finally meets the styling design and regulatory requirements of the headlight.

Utility Model Content

The utility model aims to provide a vehicle lamp structure which utilizes a common light incident surface of multiple light sources to avoid defocusing, comprising a module and a thick-walled member, which are fixedly connected; at least two groups of light sources are arranged side by side on one side of the module close to the thick-walled member, and thick walls with the same number as the light sources are also arranged side by side on the thick-walled member, and these thick walls share the same light incident surface; a secondary reflection surface and a light emitting surface are arranged on each thick wall, and the secondary reflection surface and the common light incident surface are respectively located on both sides of the thick-walled member, and the secondary reflection surface is inclined at a certain angle toward the light emitting surface; light emitted by each light source on the module enters the thick-walled member from the common light incident surface, is reflected by the secondary reflection surface of the corresponding thick wall, and then is emitted from the respective light emitting surfaces, thereby realizing different vehicle lamp functions respectively.

Furthermore, the thick walls in the thick-walled part are arranged in a staggered manner, and the projections of the secondary reflection surfaces of all the thick walls in the vertical direction do not overlap.

Furthermore, a plurality of light-focusing structures are disposed on the common light-incident surface, facing the light sources and having the same number as the light sources.

Furthermore, the angle between the secondary reflection surface and the common light incident surface is 45°. This angle design can ensure better directional reflection of light, thereby achieving corresponding functions.

Furthermore, the number of the light sources is 2 groups, which respectively realize the functions of turn signal lights and brake lights.

Furthermore, the light sources are all LEDs.

Furthermore, the module includes a PCB board, and the LED light sources are dispersedly soldered on the surface of the PCB board at a certain distance.

Furthermore, the vehicle lamp structure also includes a module bracket, a lamp housing, and an outer lens. The module is fixedly connected to the module bracket, and the assembly thus formed is fixedly connected to the lamp housing, and the lamp housing is fixedly connected to the outer lens.

Furthermore, the outer lens includes a non-transparent part and a transparent part, the transparent part is located in the middle of the outer lens, and the non-transparent part surrounds the transparent part.

Furthermore, the vehicle light structure is specifically a tail light.

The utility model performs secondary reflection through the special angle formed between the common light incident surface and the secondary reflection surface of the thick-walled part, which meets the optical requirements of the brake light and the turn signal light respectively without interfering with each other. The integrated reuse of the steering and braking functions can avoid occupying too much modeling space, which is conducive to making the whole lamp more compact and delicate. In addition, the structure of the whole lamp is relatively simple, the manufacturing and use costs are low, the assembly difficulty is almost unchanged, the LED does not defocus after lighting, and the brightness fully meets the regulatory requirements.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a front view of a vehicle lamp of the present invention;

Fig. 2 is a cross-sectional view taken along the line A-A of Fig. 1;

FIG3 is a schematic diagram of the optical path of the vehicle lamp of the present invention;

FIG. 4 is a partial enlarged schematic diagram of FIG. 3 .

Among them, 1-PCB board, 2-LED lamp bead a, 3-LED lamp bead b, 4-thick wall part, 5-module bracket, 6-lamp housing, 7-outer lens, 8-transparent part, 9-non-transparent part.

Detailed ways

In order to enable ordinary technicians in the field to fully understand the technical solutions and beneficial effects of the utility model, further description is given below in conjunction with specific embodiments and drawings.

A vehicle lamp as shown in Fig. 1-4 mainly comprises an LED module, a thick-walled part 4, a module bracket 5, a lamp housing 6, and an outer lens 7, wherein the LED module is fixed to the thick-walled part 4 by screws, and the subassembly formed thereby is fixed to the module bracket 5 by screws and buckles, and then the combination is fixed to the lamp housing 6 as a whole by screws, bayonet pins, etc. The outer lens 7 is welded to the lamp housing 6 by a hot plate welding process, thereby completing the fixing and sealing of the vehicle lamp.

The LED module includes a PCB board and two LED lamp beads a and b (corresponding to 2 and 3) welded on its upper surface. The thick-walled part 4 includes two separate thick walls, and the two are arranged with the front lower and the back higher. The two thick walls share the same bottom surface, which is the common light incident surface. Two groups of focusing structures are respectively arranged at the position where the common light incident surface is opposite to the lamp beads. The other side of each thick wall opposite to the common light incident surface is a secondary reflection surface inclined at 45°, and the front surface of each thick wall is a light emitting surface. The thick-walled part 4, the module bracket 5, the lamp housing 6, and the outer lens 7 are all made of plastic injection molding. The difference is that the thick-walled part 4 is integrally molded with transparent plastic, the module bracket 5 and the lamp housing 6 are injection molded with opaque plastic, and the outer lens 7 is jointly injection molded with transparent plastic and opaque plastic. In this way, it can be ensured that the middle area of the outer lens is a light-transmitting transparent part 8, and the remaining area is an opaque non-transparent part 9.

After power is turned on, the two LED lamp beads light up, and the light enters each thick wall through the focusing structure on the common light incident surface of the thick-walled part 4, and leaves the thick-walled part from the corresponding light exit surface after being reflected by its secondary reflection surface. The high and low staggered light continues to pass through the transparent part 8 of the outer lens 7, realizing the brake light function and the turn signal function respectively.

This solution avoids the use of dual-chip modules, reduces costs, and can ensure the uniformity and aesthetics of the lighting effects of the brake and turn function lights without replacing the LED particles with dual-chip modules.

Claims (10)

1. A car lamp structure for avoiding defocusing by utilizing a multi-light source common incident light surface is characterized in that: the car light structure comprises a module and a thick-wall piece, which are fixedly connected; at least 2 groups of light sources are arranged on one side of the module close to the thick-wall member in parallel, thick walls with the same number as the light sources are arranged on the thick-wall member in parallel, and the thick walls share the same light incident surface; the secondary reflection surfaces and the common light incident surfaces are respectively positioned on two sides of the thick-wall member, and the secondary reflection surfaces incline to a certain angle towards the light incident surfaces; light emitted by each light source on the module enters the thick-wall member from the common light incident surface, is reflected by the secondary reflection surface of the corresponding thick wall, and then is emitted from the respective light emitting surface.

2. The vehicle lamp structure according to claim 1, wherein: each thick wall in the thick-wall member is arranged in a staggered manner, and projections of all the thick-wall secondary reflection surfaces in the vertical direction are not overlapped.

3. The vehicle lamp structure according to claim 1, wherein: and the common light incident surface is also provided with light condensing structures which are opposite to the light sources and have the same quantity with the light sources.

4. The vehicle lamp structure according to claim 1, wherein: the included angle between the secondary reflecting surface and the common light incident surface is 45 degrees.

5. The vehicle lamp structure according to claim 1, wherein: the number of the light sources is 2 groups, and the functions of a steering lamp and a brake lamp are respectively realized.

6. The lamp structure according to claim 5, wherein: the light sources are all LEDs.

7. The lamp structure according to claim 6, wherein: the module comprises a PCB board, and the LED light sources are welded on the surface of the PCB board in a scattered manner.

8. The vehicle lamp structure according to claim 1, wherein: the car lamp structure further comprises a module support, a lamp shell and an outer lens, wherein the module is fixedly connected with the module support, an assembly body formed by the module and the lamp shell is fixedly connected with the lamp shell, and the lamp shell is fixedly connected with the outer lens.

9. The lamp structure according to claim 8, wherein: the outer lens includes a non-transparent portion and a transparent portion, the transparent portion being positioned intermediate the outer lens, the non-transparent portion surrounding the transparent portion.

10. The vehicle lamp structure according to claim 1, wherein: the car light structure is specifically a tail light.