CN210921235U

CN210921235U - LED headlamp

Info

Publication number: CN210921235U
Application number: CN201920682116.6U
Authority: CN
Inventors: 王凯; 彭振龙; 卢慧
Original assignee: Hubei Huanyu Autolighting Co ltd
Current assignee: Hubei Huanyu Autolighting Co ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2020-07-03
Anticipated expiration: 2029-05-14

Abstract

The utility model relates to the technical field of vehicles, in particular to LED headlamp, include: the LED lamp comprises a lamp shell assembly, an LED light-emitting device, a shading unit, a driving circuit board, an outer lens and a light collector. The outer lens is fixed at the front end of the lamp shell component; the LED light-emitting device is fixed inside the lamp shell assembly and is integrated with an LED dipped headlight and an LED high beam; the light output ends of the LED dipped headlight and the LED high beam are arranged opposite to the outer lens. The shading unit is fixed between the light ray output end of the LED light-emitting device and the outer lens. The light collector is of an annular structure, and the inner surface of the light collector is subjected to mirror surface treatment; the light collector is fixed on a light path between the shading unit and the outer lens. The driving circuit board is fixed inside the lamp shell assembly, and the driving circuit board and the LED light-emitting device are used for driving the LED light-emitting device to work. The utility model provides a LED headlamp can prevent that the light beam of car LED headlamp outgoing is irregular and influences the result of use.

Description

LED headlamp

Technical Field

The utility model relates to the technical field of vehicles, in particular to LED headlamp.

Background

The automobile lamp of the automobile is an indispensable important part in the driving process, and the automobile headlamp can improve the sight and enlarge the observation visual field. On a painted black road surface without a street lamp, it is necessary to turn on the head lamp. The existing motor vehicle headlamps mostly use incandescent lamps or halogen lamps for illumination, and have the problems of low luminous efficiency, short service life and the like. Currently, LED headlamps are emerging on the market, with a tendency to replace traditional halogen lamps. However, some of the LED headlamps on the market are provided with a light blocking device, and the high beam is blocked by the light blocking device when the high beam is not used. However, the high beam is shielded by the light shielding device, a part of light is scattered by the outer edge of the light shielding device, the part of light is emitted towards different directions around, and the light beam is irregular, so that the using effect is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a LED headlamp has solved the irregular technological effect of the light beam of the car LED headlamp outgoing that is provided with the shading unit among the prior art. In order to solve the technical problem, the utility model provides a LED headlamp, include: the LED lamp comprises a lamp shell assembly, an LED light-emitting device, a shading unit, a driving circuit board, an outer lens and a light collector;

the outer lens is fixed at the front end of the lamp shell assembly;

the LED light-emitting device is fixed inside the lamp shell assembly and is integrated with an LED dipped headlight and an LED high beam; the light output ends of the LED dipped headlights and the LED high beam are arranged opposite to the outer lens;

the shading unit is fixed between the light ray output end of the LED light-emitting device and the outer lens;

the light collector is of an annular structure, and the inner surface of the light collector is subjected to mirror surface treatment; the light collector is fixed on a light path between the shading unit and the outer lens; the light emitted by the LED light-emitting device and the light scattered by the edge of the shading unit are collected by the light collector and then horizontally emitted to the outer lens;

the driving circuit board is fixed inside the lamp shell assembly, and the driving circuit board and the LED light-emitting device are used for driving the LED light-emitting device to work.

Further, the method also comprises the following steps: a heat dissipating component; the heat dissipation assembly is arranged on the other side of the light output end of the LED light-emitting device.

Further, the heat dissipation assembly includes: a substrate and heat dissipation fins; the plurality of radiating fins are fixed on the outer side of the substrate; the inner side of the substrate is attached to the LED light-emitting device.

Further, the method also comprises the following steps: a heat insulation plate; the heat insulation plate is fixed between the LED light-emitting device and the driving circuit board.

Furthermore, a plurality of heat dissipation holes penetrating through two sides are formed in the heat insulation plate.

Further, the method also comprises the following steps: a heat radiation fan; the heat dissipation fan is fixed inside the lamp shell assembly, and the heat dissipation fan is opposite to the LED light-emitting device.

The utility model provides a pair of one or more technical scheme possesses following beneficial effect or advantage at least:

the utility model provides a LED headlamp is provided with the optical collector on the light path between shading unit and outer lens, and the optical collector is the loop configuration, and the internal surface of optical collector carries out mirror surface treatment, and this mirror surface is used for compiling shading unit edge radiating light and plastic. The light emitted by the LED light-emitting device and the light scattered by the edge of the shading unit are collected by the light collector and then horizontally emitted to the outer lens, the light scattered by the edge of the shading unit can be collected by the light collector and then shaped, and the light is horizontally emitted to the outer lens, so that the phenomenon that the using effect is influenced due to irregular light beams emitted by the automobile LED headlamp can be prevented. Furthermore, the utility model provides a LED headlamp is provided with the heat insulating board between laser light source module and drive circuit board, prevents that the radiating heat direct radiation of laser light source module from having prolonged drive circuit board's life on drive circuit board.

Drawings

Fig. 1 is a schematic structural view of an LED headlamp provided in an embodiment of the present invention;

fig. 2 is a sectional view of a heat insulation board provided by an embodiment of the present invention.

Detailed Description

The embodiment of the utility model provides a through providing a LED head-light, solved among the prior art laser head-light structure complicated, and the great technical problem of volume that occupies.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, the embodiment of the utility model provides a LED headlamp, include: the LED lamp comprises a lamp shell component 5, an LED light-emitting device, a shading unit 3, a driving circuit board, an outer lens 4 and a light collector. The outer lens 4 is fixed at the front end of the lamp shell component 5; the LED light-emitting device is fixed inside the lamp shell component 5 and is integrated with an LED dipped headlight 1 and an LED high beam 2; the light output ends of the LED dipped headlight 1 and the LED high beam 2 are arranged opposite to the outer lens 4. The shading unit 3 is fixed between the light output end of the LED light-emitting device and the outer lens 4. The light collector is of an annular structure, and the inner surface of the light collector is subjected to mirror surface treatment; the mirror surfaces are also distributed annularly. The light collector is fixed on the light path between the shading unit 3 and the outer lens 4; the light emitted by the LED light-emitting device and the light scattered by the edge of the shading unit 3 are collected by the light collector and horizontally emitted to the outer lens 4. The driving circuit board is fixed inside the lamp shell component 5, and the driving circuit board and the LED light-emitting device are used for driving the LED light-emitting device to work. The light shielding unit 3 is well known in the art and will not be described in detail herein.

In a specific embodiment provided by the present invention, the LED headlamp further includes: a heat dissipating component; the heat dissipation assembly is arranged on the other side of the light output end of the LED light-emitting device. Wherein, radiator unit includes: a substrate and heat dissipation fins; a plurality of radiating fins are fixed on the outer side of the substrate; the inner side of the substrate is attached to the LED light-emitting device.

In an embodiment of the present invention, referring to fig. 1 and fig. 2, the LED headlamp further includes: a heat insulating board 21; the heat insulating plate 21 is fixed between the LED light emitting device and the driving circuit board. The heat insulation plate 21 is provided with a plurality of heat dissipation holes 23 penetrating through two sides. In addition, the heat insulating plate 21 is provided with screw holes 22 for mounting bolts for fixing the heat insulating plate 21 to the driving circuit board. In addition, a plurality of limiting columns 24 are arranged on one side of the thermal baffle 21 facing the driving circuit board, and a certain gap is formed between the thermal baffle 21 and the driving circuit board through the limiting columns 24, so that the heat dissipation of the driving circuit board is facilitated.

In a specific embodiment provided by the present invention, the LED headlamp further includes: a heat radiation fan; the heat dissipation fan is fixed inside the lamp shell assembly and is arranged opposite to the LED light-emitting device.

The embodiment of the utility model provides a working process of LED head-light as follows: referring to fig. 1, in use, the LED headlamp is mounted at a corresponding position of a head of an automobile, and the driving circuit board is connected to a control device of the automobile through a wire. The control equipment of the automobile controls the driving circuit board to drive the LED headlamp to work. When in the dipped headlight mode, the light shading plate on the light shading unit 3 is controlled to extend out to shade the LED high beam 2; and in the high beam mode, the light shielding plate on the light shielding unit 3 is controlled to be recovered, and the light of the LED high beam 2 is emitted to the light collector. The light emitted by the LED light-emitting device and the light scattered by the edge of the shading unit 3 are collected by the light collector and horizontally emitted to the outer lens 4, the light scattered by the edge of the shading unit 3 is collected by the mirror surface in the light collector and then shaped, and the light is horizontally emitted to the outer lens 4, so that the influence on the using effect caused by irregular light beams emitted by the automobile LED headlamp can be prevented.

The embodiment of the utility model provides a one or more technical scheme possesses following beneficial effect or advantage at least:

the embodiment of the utility model provides a LED head-light is provided with the optical collector on the light path between shading unit and outer lens, and the optical collector is the loop configuration, and the internal surface of optical collector carries out mirror surface treatment, and this mirror surface is used for compiling and the plastic with the radiating light in shading unit edge. The light emitted by the LED light-emitting device and the light scattered by the edge of the shading unit are collected by the light collector and then horizontally emitted to the outer lens, the light scattered by the edge of the shading unit can be collected by the light collector and then shaped, and the light is horizontally emitted to the outer lens, so that the phenomenon that the using effect is influenced due to irregular light beams emitted by the automobile LED headlamp can be prevented. Furthermore, the embodiment of the utility model provides a LED head-light is provided with the heat insulating board between laser light source module and dirver circuit board, prevents that the radiating heat direct radiation of laser light source module from having prolonged dirver circuit board's life on dirver circuit board.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. An LED headlamp, comprising: the LED lamp comprises a lamp shell assembly, an LED light-emitting device, a shading unit, a driving circuit board, an outer lens and a light collector;

the outer lens is fixed at the front end of the lamp shell assembly;

2. The LED headlamp of claim 1 further comprising: a heat dissipating component; the heat dissipation assembly is arranged on the other side of the light output end of the LED light-emitting device.

3. The LED headlamp of claim 2 wherein the heat sink assembly comprises: a substrate and heat dissipation fins; the plurality of radiating fins are fixed on the outer side of the substrate; the inner side of the substrate is attached to the LED light-emitting device.

4. The LED headlamp of claim 1 or 2 further comprising: a heat insulation plate; the heat insulation plate is fixed between the LED light-emitting device and the driving circuit board.

5. The LED headlamp of claim 4 wherein the heat shield defines a plurality of heat dissipation apertures extending therethrough.

6. The LED headlamp of claim 2 or 3 further comprising: a heat radiation fan; the heat dissipation fan is fixed inside the lamp shell assembly, and the heat dissipation fan is opposite to the LED light-emitting device.