Heat Sink

Abstract

A heat sink is disposed on a heat source and is made by thermal conductive material. In the heat sink is defined a vacuum airtight space. A thermal conductive material and a volatile liquid are filled in the airtight space, and a plurality of radiating fins is equidistantly arranged on an outer surface of the heat sink. Such arrangements can perform a heat exchange quickly and efficiently, and the shape of the heat sink can be changed freely.

1 . A heat sink disposed on a heat source and made by thermal conductive material, in the heat sink being defined a vacuum airtight space filled with a heat thermal conductive material and a volatile liquid, the thermal conductive material cooperating with the volatile liquid to perform a heat exchange circulation, and the heat sink being connected to the thermal conductive material and the volatile liquid to dissipate heat energy to the outside. 
   
   
       2 . The heat sink as claimed in  claim 1 , wherein an outer surface of the heat sink is arranged with a plurality of radiating fins. 
   
   
       3 . The heat sink as claimed in  claim 1 , wherein the heat sink is provided with a bending angle, and the airtight space of the heat sink is bended accordingly. 
   
   
       4 . The heat sink as claimed in  claim 1 , wherein an inner surface of the heat sink is designed to be a rough inner surface. 
   
   
       5 . The heat sink as claimed in  claim 1 , wherein the heat sink is provided with a copper tube connected to the airtight space in the heat sink and used to vacuum the airtight space and to inject the volatile liquid into the airtight space. 
   
   
       6 . The heat sink as claimed in  claim 5 , wherein the copper tube is a three-way tube and is connected to a vacuum tube and an injecting tube, the vacuum tube and the injecting tube are provided with a valve, respectively, the vacuum tube is used to vacuum the airtight space, and the injecting tube is provided for injecting the volatile liquid into the airtight space. 
   
   
       7 . The heat sink as claimed in  claim 1 , wherein the thermal conductive material is selected from the group consisting of a steel wool, a copper wool and a wire-shaped thermal conductive material. 
   
   
       8 . The heat sink as claimed in  claim 1 , wherein the volatile liquid is the liquid with a lower vaporizing temperature. 
   
   
       9 . The heat sink as claimed in  claim 8 , wherein the volatile liquid is a compound liquid of alcohol, ether and water, and a compound proportion of the compound liquid is set according to a working temperature. 
   
   
       10 . The heat sink as claimed in  claim 2 , wherein the radiating fins are disposed outside the heat sink and are equidistantly arranged. 
   
   
       11 . The heat sink as claimed in  claim 10 , wherein the radiating fins cooperate with an air-cooled fan to improve cooling effect. 
   
   
       12 . The heat sink as claimed in  claim 2 , wherein the radiating fins cooperate with an air-cooled fan to improve cooling effect.