CN213542367U

CN213542367U - Double-light illuminating device for vehicle headlamp

Info

Publication number: CN213542367U
Application number: CN202022904590.4U
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, including lens, integral type optical element, reflection bowl, high beam LED light source and short-distance beam LED light source, integral type optical element set up in lens with between the reflection bowl, 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, the high beam light passageway that runs through around integral type optical element's the middle part is equipped with, high beam LED light source set up in the incident end of high beam light passageway, the exit end of high beam light passageway is directional lens, the light of short-distance beam LED light source by some behind the reflection bowl reflection lens another part warp the top surface directive behind integral type optical element's the directive lens. 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 double-light illuminating device for a vehicle headlamp 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, a near beam cut-off line structure is arranged on a boundary line between the top surface and the front end surface of the integrated optical element, a high beam light channel penetrating through the middle of the integrated optical element is arranged in the front and at the back, the high beam LED light source is arranged at an incident end of the high beam light channel, an emergent end of the high beam light channel points to the lens, and part of light of the low beam LED light source is reflected by the reflecting bowl and then shot to the lens, and the other part of light is reflected by the top surface of the integrated optical element and then shot to the lens.

Furthermore, the distance light LED light source is equipped with and is no less than 5 and transversely parallel interval sets up, every the distance light LED light source can shine alone and go out.

Furthermore, the high beam light channels are provided with a plurality of light channels, and the high beam light channels correspond to the high beam LED light sources one to one.

Furthermore, the four walls of the high beam light channel are provided with aluminized reflecting layers.

Furthermore, the front end face of the integrated optical element is a concave cambered surface.

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.

Fig. 5 is a schematic structural diagram of the integrated optical element according to embodiment 1.

Fig. 6 is a schematic structural diagram of the integrated optical element according to embodiment 2.

Detailed Description

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

Embodiment 1, please refer to fig. 1 to 5, in which 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, 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 located at the optical origin of the reflective bowl 3, and the unitary optical element 2 is located between the lens 1 and the reflective bowl 3. The integrated optical element 2 is of a flat structure, the front end surface of the integrated optical element is an inwards concave cambered surface, and the rear end of the integrated optical element is a plane. The front edge of the top surface of the integrated optical element 2 is provided with a protrusion 200, 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 201. 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.

The high beam LED light source 4 sets up in the rear end position of integral type

optical element

2, and 5 are no less than to high beam LED light source 4 sets up, and transversely parallel interval along the flat direction of integral type optical element 2 sets up, and every high beam LED light source 4 can be bright alone and go out. The middle part of the integrated optical element 2 is provided with a front and back penetrating high beam light channel 202, the four walls in the high beam light channel 202 are aluminized, the reflectivity of the light of the high beam LED light source 4 on the surfaces is improved, the utilization rate of the light is improved, and the optical efficiency is improved. The light from the high beam LED light source 4 passes through the high beam light channel 202 and then enters the plane entrance surface of the lens 1 to be emitted to form a high beam shape.

Embodiment 2, the structure and the positional relationship of the other components of the vehicle headlamp dual-light illumination device of the present embodiment are the same as those of embodiment 1 except for the integrated optical element 2, in the present embodiment, the structure of the integrated optical element 2 is as shown in fig. 6, the integrated optical element 2 is a flat structure, the front end surface thereof is an inward concave arc surface, and the rear end thereof is a plane surface. The front edge of the top surface of the integrated optical element 2 is provided with a protrusion 200a, and a 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 201 a. The middle of the integrated optical element 2 is provided with a plurality of front and back penetrating high beam light channels 202a, the number of the high beam light channels 202a is the same as that of the high beam LED light sources 4, the high beam light channels 202a are transversely arranged in parallel along the flat direction of the integrated optical element 2 at intervals and are in one-to-one correspondence with the high beam LED light sources 4, and the four walls of the inside of each high beam light channel 202a are aluminized. The light of each high beam LED light source 4 passes through the corresponding high beam light channel 202a and then is incident from the plane incident surface of the lens 1 and then exits to form a high beam shape as a whole. The high beam profile of this embodiment can be divided into a plurality of optical profile regions, except ordinary high beam, can also realize the ADB high beam function, prevents dazzling high beam function promptly.

Claims

1. The vehicle headlamp 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, a near beam cut-off line structure is arranged on a boundary line between the top surface and the front end surface of the integrated optical element, a high beam light channel penetrating through the middle of the integrated optical element is arranged in the front and at the back, the high beam LED light source is arranged at an incident end of the high beam light channel, an emergent end of the high beam light channel points to the lens, and part of light of the low beam LED light source is reflected by the reflecting bowl, and the other part of the lens is reflected by the top surface of the integrated optical element and then irradiates to the lens.

2. The dual light illumination device for the vehicle headlamp of claim 1, wherein the number of the high beam LED light sources is not less than 5, and the high beam LED light sources are arranged in parallel and transversely at intervals, 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 a plurality of the high beam light paths are provided, and the high beam light paths are in one-to-one correspondence with the high beam LED light sources.

4. A dual light illumination device for a vehicle headlamp as defined in claim 1, wherein the walls of the high beam light path are provided with aluminum-plated reflective layers.

5. The dual light illumination device for a vehicle headlamp of claim 1, wherein the front end surface of the integrated optical element is a concave curved surface.

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.