CN205299315U - Car light radiator - Google Patents

Abstract

The utility model provides a car light radiator, is including the radiating fin subassembly that conducts heat the stick with be located the excellent one end of conducting heat, the stick that conducts heat is hollow structure, its inside through -hole that runs through the excellent both ends of conducting heat that is equipped with, be equipped with the wick pipe in the through -hole, the outer wall of wick pipe combines with the inner wall of through -hole, the intraductal heat dissipation channel who forms holding working medium of wick. The utility model discloses the theory of operation: wick pipe is formed by the ceramic powder sintering, and behind its sintering, the outer wall of wick pipe and through -hole combine better, and heat on the heat transfer stick can fast transferring to wick pipe, the intraductal volatile liquid that is equipped with of wick, the one end temperature of installing the LED chip on the heat transfer stick is higher, can make working medium volatilize become steam and enter into wick intraductal, steam passes through the other end that the stick that conducts heat was arrived in the migration of wick pipe wall, because the excellent other end of heat transfer is connected with radiating fin, can distributes the heat of the stick that conducts heat fast, and then cool off the liquefy and get back to wick again intraductally to steam. (U /)

Description

A kind of car light radiator

Technical field

This utility model relates to radiator, especially a kind of car light radiator.

Background technology

Along with the development of LED, LED light source replaces conventional light source gradually in all trades and professions. Although LED light source is bigger than conventional light source advantage, but there is the problem of heat radiation in LED light source, and the problem of weak heat-dissipating is always present in the illuminator of LED light source, and especially high-power LED auto lamp, the radiator more needing radiating efficiency higher coordinates. In prior art, such as a kind of LED headlight based on adopting heat pipes for heat transfer mandrel structure that China Patent Publication No. is 204648061, including plug, fin component, least one set LED lamp component; LED lamp component and fin component are installed on plug; Plug includes plug housing and is positioned at the heat pipe of plug housing; Plug housing is hollow tubular structure; Heat pipe is close to the inwall of plug housing by the mode of tube expansion. This kind of LED headlight utilizes plug to conduct heat, and then utilizes fin component to dispel the heat, and has certain radiating effect, but it adds heat pipe in plug, and heat need to be transmitted by plug and copper heat pipe, and what reduce heat distributes speed.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of car light radiator, and radiating efficiency is higher.

For solving above-mentioned technical problem, the technical solution of the utility model is: a kind of car light radiator, including heat conductive bar and the radiating fin assembly being positioned at heat conductive bar one end; Being provided with through the through hole at heat conductive bar two ends inside described heat conductive bar, be provided with wick layer in described through hole, the outer wall of wick layer is combined with the inwall of through hole, forms the heat dissipation channel of accommodating working medium in wick layer. Utility model works principle: wick layer is formed by copper powder sintering, after its sintering, the outer wall of wick layer is combined with through hole better, and the heat on heat conductive bar can quickly be transferred to wick layer; Wick layer is built with volatile liquid, and one end temperature that heat conductive bar is installed LED chip is higher, it is possible to make working medium volatilization become steam and enter in wick layer;Steam is by wick layer wall migration to the other end of heat conductive bar, owing to the other end of heat conductive bar is connected with radiating fin, it is possible to by the heat Quick diffusing of heat conductive bar, and then steam is carried out cooling becomes liquid and comes back in wick layer.

As improvement, described heat conductive bar and through hole are by red copper one drawing and forming.

As improvement, described through hole is cylindrical hole.

As improvement, described through hole is positioned at the centre position of heat conductive bar.

As improvement, the diameter of described through hole is 5-7mm.

It is the installed surface that plane forms for installing LED chip as improvement, the end face of described heat conductive bar and bottom surface.

As improvement, described installed surface is provided with two grooves for installing bus arranged along heat conductive bar length direction.

As improvement, between two grooves on same installed surface, form the base contact of projection, described projection and LED chip.

As improvement, the thickness of described wick layer is 0.6-0.8mm.

This utility model is compared with prior art had the benefit that

The outer wall of wick layer is combined with through hole better so that heat conductive bar can realize the function of heat pipe, and the heat on heat conductive bar can quickly be transferred to wick layer; Wick layer is built with volatile liquid, and one end temperature that heat conductive bar is installed LED chip is higher, it is possible to make working medium volatilization become steam and enter in wick layer; Steam is by the other end of wick layer wall migration to heat conductive bar, owing to the other end of heat conductive bar is connected with radiating fin, can by the heat Quick diffusing of heat conductive bar, and then steam is carried out cooling become liquid and come back in wick layer, the conversion utilizing the liquid state of wage carries out heat exchange, and the radiating efficiency making radiator is higher.

Accompanying drawing explanation

Fig. 1 is this utility model scheme of installation.

Fig. 2 is this utility model decomposition view.

Fig. 3 is heat conductive bar cross-sectional view.

Detailed description of the invention

Below in conjunction with Figure of description, the utility model is described in further detail.

As shown in Figure 1, 2, a kind of car light radiator, including heat conductive bar 1 and the radiating fin assembly 2 being positioned at heat conductive bar 1 one end, the other end of heat conductive bar 1 is used for installing LED chip 3. Described heat conductive bar 1 is hollow structure, is internally provided with running through the through hole 6 at heat conductive bar 1 two ends, and described through hole 6 is cylindrical hole, and its diameter is 5-7mm; Described heat conductive bar 1 side's of being bar shaped, described through hole 6 is positioned at the centre position of heat conductive bar 1; Described heat conductive bar 1 and through hole 6 are by the welding performance such as copper or gold relatively good material one drawing and forming. Heat conductive bar 1 two ends realize sealing by welding upper end cover. The end face of described heat conductive bar 1 and bottom surface are the installed surface that plane forms for installing LED chip 3; Described installed surface is provided with two grooves 5 arranged along heat conductive bar 1 length direction, is provided with bus 4 in described groove 5, and wherein a bus is positive pole, and the other end is negative pole, and the positive pole of LED chip 3 contacts with positive conductive bar, and negative pole contacts with negative conductive bar; Between bus 4 and heat conductive bar 1, insulation is arranged. Forming the base contact of protruding 9, described protruding 9 and LED chip 3 between two grooves 5 on same installed surface, heat can be transferred directly on heat conductive bar 1 by LED chip 3 by protruding 9. As it is shown on figure 3, be provided with wick layer 7 in described through hole 6, the thickness of described wick layer 7 is 0.6-0.8mm, forms the heat dissipation channel 8 of accommodating working medium in wick layer 7; Wick layer 7 is formed by copper powder sintering, and after its sintering, the outer wall of wick layer 7 is combined with through hole 6 better, and the heat on heat conductive bar 1 can quickly be transferred to wick layer 7.Utility model works principle: wick layer 7 is built with volatile liquid, and one end temperature that heat conductive bar 1 is installed LED chip 3 is higher, it is possible to make working medium volatilization become steam and enter in wick layer 7; Steam is by wick layer 7 wall migration to the other end of heat conductive bar 1, owing to the other end of heat conductive bar 1 is connected with radiating fin, it is possible to by the heat Quick diffusing of heat conductive bar 1, and then steam carries out cooling becomes liquid and comes back in wick layer 7.

Claims (9)

1.A kind of car light radiator, including heat conductive bar and the radiating fin assembly being positioned at heat conductive bar one end; It is characterized in that: being provided with through the through hole at heat conductive bar two ends inside described heat conductive bar, be provided with wick layer in described through hole, the outer wall of wick layer is combined with the inwall of through hole, in wick layer, form the heat dissipation channel of accommodating working medium.

2.A kind of car light radiator according to claim 1, it is characterised in that: described heat conductive bar and through hole are by red copper one drawing and forming.

3.A kind of car light radiator according to claim 1, it is characterised in that: described through hole is cylindrical hole.

4.A kind of car light radiator according to claim 1, it is characterised in that: described through hole is positioned at the centre position of heat conductive bar.

5.A kind of car light radiator according to claim 1, it is characterised in that: the diameter of described through hole is 5-7mm.

6.A kind of car light radiator according to claim 1, it is characterised in that: the end face of described heat conductive bar and bottom surface are the installed surface that plane forms for installing LED chip.

7.A kind of car light radiator according to claim 6, it is characterised in that: described installed surface is provided with two grooves for installing bus arranged along heat conductive bar length direction.

8.A kind of car light radiator according to claim 7, it is characterised in that: form the base contact of projection, described projection and LED chip between two grooves on same installed surface.

9.A kind of car light radiator according to claim 1, it is characterised in that: the thickness of described wick layer is 0.6-0.8mm.