CN212339150U

CN212339150U - Vehicle LED headlamp with ultrathin heat pipe

Info

Publication number: CN212339150U
Application number: CN202021307974.1U
Authority: CN
Inventors: 肖强
Original assignee: Shenzhen Taiyang Xinyuan Technology Co ltd
Current assignee: Shenzhen Taiyang Xinyuan Technology Co ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-01-12
Anticipated expiration: 2030-07-06

Abstract

The utility model belongs to the technical field of automotive lighting device, concretely relates to automobile-used LED headlight with ultra-thin heat pipe, including two copper base plates, locate the LED lamp pearl on every copper base plate, heat radiation fins and radiator fan still include flat heat pipe, two copper base plates set firmly respectively on the two surfaces of heat pipe, and a tip of heat pipe is located to heat radiation fins on the surface, radiator fan and heat radiation fins bottom surface fixed connection. Compare with current product, the utility model discloses a heat pipe heat conduction, and the heat pipe is flat-plate-shaped and very thin, directly form a whole with two copper base plate welding on two surfaces of heat pipe, the heat conduction area that can make the product is showing and is increasing, thereby be favorable to improving heat conduction efficiency, with heat radiation fins setting on the tip surface of heat pipe, the heat that LED lamp pearl produced passes through heat pipe conduction to heat radiation fins department rapidly, then in time with the heat effluvium through radiator fan, prevent that LED lamp pearl from working under high temperature environment for a long time, be favorable to improving the life of LED lamp pearl.

Description

Vehicle LED headlamp with ultrathin heat pipe

Technical Field

The utility model relates to an automotive lighting equipment technical field specifically indicates a LED headlight that is used for the car and has good heat conduction, heat dispersion.

Background

Current car LED headlight only utilizes metal material to carry out the heat conduction, namely the copper base plate and the radiator lug connection of fixing LED lamp pearl, heat to the radiator that produces through copper base plate conduction LED lamp pearl, because LED headlight operational environment temperature is high, and receive space limitation, rely on copper base plate heat conduction alone, the efficiency of heat conduction is lower relatively, thereby it is not good to lead to the radiating effect, LED lamp pearl is worked under higher temperature, can be ageing with higher speed and the light decay appears, luminance just obviously step-down when the light decay is serious, produce great influence to illumination, the life of LED headlight has been reduced.

SUMMERY OF THE UTILITY MODEL

In order to overcome the shortcomings in the prior art, the utility model aims to provide a vehicle LED headlamp with an ultra-thin heat pipe, which adopts the heat pipe to conduct heat and improves the heat conduction and heat dissipation effects.

In order to achieve the above object, the utility model adopts the following technical scheme: the LED headlamp for the vehicle comprises two copper substrates, an LED lamp bead, a heat dissipation fin and a heat dissipation fan, wherein the LED lamp bead, the heat dissipation fin and the heat dissipation fan are arranged on each copper substrate, the two copper substrates are fixedly arranged on two surfaces of the heat pipe respectively, the heat dissipation fin is arranged on the surface of one end portion of the heat pipe, and the heat dissipation fan is fixedly connected with the bottom surfaces of the heat dissipation fins. The heat pipe is flat and very thin, directly forms a whole with two copper base plate welding on two surfaces of heat pipe, and heat conduction area is showing and is increasing, has improved heat conduction efficiency, sets up heat radiation fins on the tip surface of heat pipe, and the heat that LED lamp pearl produced passes through heat pipe conduction to heat radiation fins department rapidly, then in time dispels the heat through radiator fan, prevents that LED lamp pearl from working under high temperature environment for a long time.

Preferably, the heat pipe is T-shaped, that is, the heat sink is formed by integrally molding a vertical plate and a horizontal plate vertically connected with one end of the vertical plate; the two radiating fins are respectively fixedly connected with the two surfaces of the transverse plate at the end part of the heat pipe, and the two copper substrates are respectively fixedly arranged on the two surfaces of the vertical plate.

Preferably, the thickness of the heat pipe is 0.8mm, the thickness of the heat pipe is extremely small, and the thickness of the whole formed by assembling the two copper substrates is not increased obviously.

The beneficial technical effects are as follows: compare with current product, the utility model discloses a heat pipe heat conduction, and the heat pipe is flat and very thin, directly form a whole with two copper base plate welding on two of heat pipe surfaces, can not lead to the volume increase by a wide margin of product, nevertheless can make the heat conduction area of product show the increase, thereby be favorable to improving heat conduction efficiency, set up heat radiation fins on the tip of heat pipe is surperficial, the heat that LED lamp pearl produced passes through heat pipe conduction to heat radiation fins department rapidly, then in time with the heat effluvium through radiator fan, prevent that LED lamp pearl from working under high temperature environment for a long time, prevent that LED lamp pearl luminous efficiency from reducing, be favorable to improving the life of LED lamp pearl.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention;

fig. 2 is a perspective view of a heat pipe according to an embodiment of the present invention.

Detailed Description

In order to make the technical field of the present invention better understand, the present invention is further described in detail with reference to the accompanying drawings and embodiments.

As shown in fig. 1-2, the embodiment of the present invention provides an automotive LED headlamp with an ultra-thin heat pipe, which includes two copper substrates 1, LED lamp beads 2 disposed on each copper substrate, heat dissipation fins 3 and heat dissipation fans 4, and further includes a flat heat pipe 5, wherein the two copper substrates 1 are respectively fixed on two surfaces of the heat pipe 5, the heat dissipation fins 3 are disposed on a surface of an end portion of the heat pipe 5, and the heat dissipation fans 4 are fixedly connected to bottom surfaces of the heat dissipation fins 3.

The heat pipe 5 that here adopted is flat and very thin, directly weld two copper base plate 1 on two of heat pipe on the surface form a whole, the thickness of increase is less, but can make the heat conduction area of product show the increase, heat conduction efficiency has been improved, set up heat radiation fins 3 on the tip surface of heat pipe 5, the heat that LED lamp pearl 2 produced passes through heat pipe 5 conduction to heat radiation fins 3 department rapidly, then in time with the heat effluvium through radiator fan 4, prevent that LED lamp pearl from working under high temperature environment for a long time.

Specifically, the heat pipe 5 is T-shaped, that is, the heat pipe 5 is formed by integrally molding a vertical plate 501 and a horizontal plate 502 vertically connected with one end of the vertical plate; the number of the two heat dissipation fins 3 is two, the inner side surfaces of the two heat dissipation fins 3 are respectively fixedly connected with two surfaces of the transverse plate 502 at the end part of the heat pipe, and the two copper substrates 1 are respectively fixedly arranged on two surfaces of the vertical plate 501.

The thickness of the heat pipe 5 is 0.8mm, the thickness of the heat pipe is extremely small, and the thickness of the whole formed by assembling the two copper substrates is not obviously increased.

In the use process, when one end of the heat pipe 5 is influenced by the LED lamp beads and the temperature rises, the liquid in the heat pipe is quickly vaporized, the steam quickly flows to the other end to release heat to the radiating fins 3, and therefore heat transfer is conducted, and generally, the heat conduction capacity of the heat pipe exceeds that of any known metal.

Copper substrate 1 adopts the red copper material to make, and thickness is only 0.4mm, and copper substrate 1 is respectively welded on the two surfaces of heat pipe, and the gross thickness is only 1.6mm, guarantees that LED lamp pearl 2 has good spotlight nature, and 1 beading of copper substrate is on the heat pipe, and the heat that LED lamp pearl 2 produced can be quick passes to heat pipe 5 through copper substrate 1 on.

The heat dissipation fins 3 are made of ultrathin copper sheets, large-area copper sheets are in contact with air, gaps are reserved among the copper sheets, air flow is facilitated, the ultrathin heat pipes 5 are directly welded with tin paste, and heat of the ultrathin heat pipes can be rapidly transferred to the heat dissipation fins 3.

In the above description, it should be noted that the terms "mounted," "connected," and the like are used in a broad sense, and for example, they may be fixedly connected, detachably connected, or integrally connected; the connection may be direct or indirect via an intermediate medium, and the connection may be internal to the two components.

It is to be understood that the above-described embodiments are only some of the embodiments of the present invention, and not all embodiments, and that the appended drawings illustrate preferred embodiments of the present invention, but do not limit the scope of the invention. The present invention may be embodied in many different forms and, on the contrary, these embodiments are provided so that this disclosure will be thorough and complete. All utilize the equivalent structure that the content of the utility model discloses a specification and attached drawing was done, direct or indirect application is in other relevant technical field, all is in the same way the utility model discloses within the patent protection scope.

Claims

1. The LED headlamp with the ultrathin heat pipe for the vehicle comprises two copper substrates, an LED lamp bead, heat dissipation fins and a heat dissipation fan, wherein the LED lamp bead, the heat dissipation fins and the heat dissipation fan are arranged on each copper substrate.

2. The LED headlight provided with the ultra-thin heat pipe as claimed in claim 1, wherein the heat pipe is T-shaped, the number of the heat dissipating fins is two, and inner side surfaces of the two heat dissipating fins are fixedly connected to two surfaces of the transverse plate at the end portion of the heat pipe, respectively.

3. The vehicular LED headlamp provided with an ultra-thin heat pipe as set forth in claim 2, wherein the thickness of the heat pipe is 0.8 mm.