CN213542357U

CN213542357U - Double-light illuminating device for vehicle headlamp

Info

Publication number: CN213542357U
Application number: CN202022902811.4U
Authority: CN
Inventors: 宋佳玲; 陈缘; 付梦迪
Original assignee: Changshu Institute of Technology
Current assignee: Changshu Institute of Technology
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-06-25
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a two light lighting devices of vehicle headlight, which comprises a lens, integral type optical element, the reflection bowl, high beam LED light source and short-distance beam LED light source, integral type optical element sets up between lens and reflection bowl, integral type optical element is including transversely setting up a plurality of light transmission structures side by side and by light transmission structure's top surface to reflection bowl orientation extension top reflecting plate, integral type optical element's top surface and preceding terminal surface boundary line set up to the short-distance beam and end the line structure, light transmission structure one side is the convex surface, the one side is the concave surface, all concave surfaces constitute smooth integral type optical element's preceding terminal surface, high beam LED light source sets up in light transmission structure's convex surface one side, the light of short-distance beam LED light source is by reflection bowl reflection back some directive lens another part through integral type optical element's top surface. The utility model discloses an integrated design of high beam optical element nearly light cut-off line is favorable to making whole size compacter, and simple structure is effective.

Description

Double-light illuminating device for vehicle headlamp

Technical Field

The utility model relates to a vehicle lighting device especially relates to a two light lighting device of vehicle headlight.

Background

In recent years, with the rapid development of socioeconomic performance in China, the living standard of people is continuously improved, and the quantity of motor vehicles in China is continuously increased. The safety lighting device car light is inevitably needed to be used in the driving process of the vehicle, the car light is of great importance to the safety of driving at night, and the lighting range of the car light is the key point of driving safety. With the development of automobile technology, the effective brightness of the light shape of the automobile lamp is no longer a technical difficulty, the light weight of the automobile is ensured, the same effective brightness is ensured, and the automobile lamp is in line with the modeling trend of modern automobiles.

SUMMERY OF THE UTILITY MODEL

To address the above-mentioned deficiencies of the prior art, it is an object of the present invention to provide a dual-beam lighting device for a vehicle headlamp, which integrates a high beam optical element and a low beam cut-off line so as to make the overall size more compact, and which is simple and effective in structure.

The utility model discloses technical scheme is such: a vehicle headlamp double-light illuminating device comprises a lens, an integrated optical element, a reflecting bowl, a high beam LED light source and a low beam LED light source, wherein the integrated optical element is arranged between the lens and the reflecting bowl, the integrated optical element comprises a plurality of light transmitting structures transversely arranged in parallel and a top reflecting plate extending from the top surfaces of the light transmitting structures to the direction of the reflecting bowl, the boundary line between the top surface and the front end surface of the integrated optical element is a low beam cut-off line structure, one surface of the light transmitting structure facing the reflecting bowl is a convex surface, one surface of the light transmitting structure facing the lens is a concave surface, the concave surfaces of all the light transmitting structures are connected into a smooth cambered surface to form the front end surface of the integrated optical element, the high beam LED light source is arranged on one side of the convex surface of the light transmitting structure, and the light of the high beam LED light source is emitted into the, and part of light rays of the low-beam LED light source are reflected by the reflecting bowl and then emitted to the lens, and the other part of the light rays are reflected by the top surface of the integrated optical element and then emitted to the lens.

Furthermore, the distance light LED light source is equipped with and is no less than 6 and transversely parallel interval sets up, every the distance light LED light source can shine alone and go out.

Furthermore, the number of the light-transmitting structures is the same as that of the high beam LED light sources, and the light-transmitting structures correspond to the high beam LED light sources one to one.

Further, the focal point of the lens is located at the upper edge of the front end face of the integrated optical element.

Further, the top surface of the integrated optical element is provided with an aluminized reflecting layer.

Further, the low-beam LED light source is arranged at an optical origin of the reflection bowl.

Compared with the prior art, the utility model the advantage lie in:

the high beam optical element and the low beam cut-off line structure are arranged to be the same optical element, the integration level is high, the optical efficiency is higher, the size is more compact and small, the space utilization rate is high, the overall weight is light, and the automobile light-weight optical element is suitable for automobile light-weight.

Drawings

Fig. 1 is a perspective view of a front upper view angle of a dual light illumination device of a vehicle headlamp.

Fig. 2 is a rear lower view angle three-dimensional structure diagram of a dual-light illumination device of a vehicle headlamp.

Fig. 3 is a schematic top view of a dual light illumination device for a vehicle headlamp.

Fig. 4 is a schematic sectional view taken along line a-a of fig. 3.

Detailed Description

The present invention will be further described with reference to the following examples, which should not be construed as limiting the invention.

Referring to fig. 1 to 4, a dual-light illumination device of a vehicle headlamp according to the present embodiment includes a lens 1, an integrated optical element 2, a reflective bowl 3, a high beam LED light source 4, and a low beam LED light source 5, where the reflective bowl 3 is provided with an inner concave reflective surface, the inner concave reflective surface is a part of an ellipsoid, an opening of the reflective bowl 3 is disposed toward the lens 1, the lens 1 is a convex lens 1, the lens 1 has a planar incident surface, and the planar incident surface of the lens 1 is disposed toward the reflective bowl 3. The low-beam LED light source 5 is positioned at the optical origin of the reflecting bowl 3, the integrated optical element 2 is positioned between the lens 1 and the reflecting bowl 3, and the focus of the lens 1 is positioned at the upper edge of the front end surface of the integrated optical element 2.

The integrated optical element 2 is a flat structure, and includes a plurality of light-transmitting structures 201 arranged in parallel in the transverse direction, and the embodiment includes 6 light-transmitting structures 201. One surface of each light-transmitting structure 201 facing the reflection bowl 3 is a convex surface, the convex surface is an incident surface 201a of the high beam, the surface facing the lens 1 is a concave surface, and the concave surface is an emergent surface 201b of the high beam. The concave surfaces of all the light-transmitting structures 201 constitute a smooth front end surface of the unitary optical element 2, which forms a concave cambered surface structure. The top surface of light-transmitting structure 201 extends to reflection bowl 3 and forms top reflecting plate 202, and distance light LED light source 4 is provided with 6, also is horizontal arranging side by side with light-transmitting structure 201 one-to-one, is located one side of the convex surface of light-transmitting structure 201 and is located top reflecting plate 202 below. The light of the high beam LED light source 4 enters the light-transmitting structure 201 from the convex surface and then exits from the concave surface, and then enters the lens 1 to exit to form a high beam shape.

The top surface of the integrated optical element 2 is provided with an aluminum-plated reflective layer, the front edge of the top surface is provided with a protrusion 2a, and the boundary line between the top surface and the front end surface of the integrated optical element 2 forms a low-beam cut-off line structure 2 b. After the light shape emitted by the low-beam LED light source 5 is reflected by the reflecting bowl 3, one part of the light shape is directly incident from the plane incident surface of the lens 1, the other part of the light shape is emitted to the top surface of the integrated optical element 2, the light shape is reflected by the top surface of the integrated optical element 2 and then is incident from the plane incident surface of the lens 1, and finally, two parts of light rays are emitted from the lens 1 to form the low-beam light shape.

Claims

1. A vehicle headlight double-light illuminating device is characterized by comprising a lens, an integrated optical element, a reflecting bowl, a high beam LED light source and a low beam LED light source, wherein the integrated optical element is arranged between the lens and the reflecting bowl, the integrated optical element comprises a plurality of light transmitting structures transversely arranged in parallel and a top reflecting plate extending from the top surfaces of the light transmitting structures to the reflecting bowl, the intersection line of the top surface and the front end surface of the integrated optical element is of a low beam cut-off line structure, one surface of the light transmitting structure, facing the reflecting bowl, is a convex surface, one surface of the light transmitting structure, facing the lens, is a concave surface, the concave surfaces of all the light transmitting structures are connected into a smooth cambered surface to form the front end surface of the integrated optical element, the high beam LED light source is arranged on one side of the convex surface of the light transmitting structure, and light of the high beam LED light source is emitted into the, and part of light rays of the low-beam LED light source are reflected by the reflecting bowl and then emitted to the lens, and the other part of the light rays are reflected by the top surface of the integrated optical element and then emitted to the lens.

2. The dual light illumination device for the vehicle headlamp of claim 1, wherein at least 6 high beam LED light sources are arranged in parallel and laterally spaced, and each high beam LED light source can be independently turned on or off.

3. The vehicle headlamp dual-light illumination device as claimed in claim 2, wherein the number of the light-transmitting structures and the number of the high beam LED light sources are the same, and the light-transmitting structures correspond to the high beam LED light sources one to one.

4. A vehicle headlamp dual light illumination device as claimed in claim 1, wherein the focal point of said lens is located at the upper edge of the front end surface of said integrated optical element.

5. A dual light illumination device for a vehicle headlamp as defined in claim 1, wherein a top surface of the integrated optical element is provided with an aluminum-plated reflective layer.

6. The dual light illumination device for a vehicle headlamp of claim 1, wherein the low beam LED light source is disposed at an optical origin of the reflective bowl.