Heat cooler

Abstract

Provided is a heat cooler configured to rapidly cool a heat-generating device by transferring heat generated from the heat-generating device to an outside area. The heat cooler includes a heat conductive body having a predetermined volume and sealing members. The body includes a plurality of penetration holes formed through top and bottom surfaces of the body. The sealing members are hermetically coupled to the top and bottom surfaces of the body. The bores are sealed with the sealing members to form independent accommodation portions, and a plurality of heat conductive beads and a refrigerant are filled in the accommodation portions in a state where the refrigerant permeates between the heat conductive beads.

1 . A heat cooler comprising:
 a heat conductive body having a predetermined volume, the body comprising a plurality of bores formed through top and bottom surfaces of the body; and   sealing members hermetically coupled to the top and bottom surfaces of the body,   wherein the bores are sealed with the sealing members to form independent accommodation portions, and a plurality of heat conductive beads and a refrigerant are filled in the accommodation portions in a state where the refrigerant permeates between the heat conductive beads.   
     
     
         2 . The heat cooler of  claim 1 , wherein the body is formed of one of a metal, graphite, and carbon. 
     
     
         3 . The heat cooler of  claim 1 , wherein vacuum spaces are formed in portions of the accommodation portions where the heat conductive beads are not filled. 
     
     
         4 . The heat cooler of  claim 1 , wherein grooves are formed in inner surfaces of the accommodation portions in a height direction of the body, or wicks are disposed in the accommodation portions. 
     
     
         5 . The heat cooler of  claim 1 , wherein the accommodation portions have a sufficient height such that high-temperature regions and low-temperature regions are formed in the accommodation portions when heat is transferred to the heat cooler so as to cause the refrigerant to circulate in the accommodation portions while the refrigerant evaporates. 
     
     
         6 . The heat cooler of  claim 1 , wherein the heat conductive beads are formed of one of a metal, a ceramic material, a carbon material, and a combination thereof. 
     
     
         7 . The heat cooler of  claim 1 , wherein the heat conductive beads have a size equal to or smaller than ⅓ the diameter of cross sections of the accommodation portions. 
     
     
         8 . The heat cooler of  claim 1 , wherein the heat cooler has a plate shape, and a width and a length of the heat cooler are greater than a thickness of the heat cooler. 
     
     
         9 . The heat cooler of  claim 1 , wherein at least one of top and bottom surfaces of the heat cooler is horizontal surface. 
     
     
         10 . The heat cooler of  claim 1 , wherein the sealing members are metal foils or metal caps. 
     
     
         11 . The heat cooler of  claim 10 , wherein the sealing members are coupled to the top and bottom surfaces of the body by using one of a heat conductive elastic rubber adhesive, a heat conductive epoxy adhesive, a heat conductive acryl adhesive, a soldering process, and a metal-welding process. 
     
     
         12 . The heat cooler of  claim 1 , wherein the heat conductive beads filled in the accommodation portions occupy 30% or more of inner volumes of the accommodation portions. 
     
     
         13 . A heat cooler comprising:
 a heat conductive body having a predetermined volume, the body comprising a plurality of bores formed through top and bottom surfaces of the body; and   sealing members hermetically coupled to the top and bottom surfaces of the body,   wherein the bores are connected to each other through a gap formed between one of the sealing members and the top surface or the bottom surface of the body,   a plurality of heat conductive beads and a refrigerant are filled in the bores in a state where the refrigerant permeates between the heat conductive beads, and   the refrigerant is allowed to flow horizontally among the bores through the gap.   
     
     
         14 . A heat cooler comprising:
 a heat conductive body having a predetermined volume, the body comprising a plurality of accommodation grooves formed in one of top and bottom surfaces of the body; and   a sealing member hermetically coupled to the one of the top and bottom surfaces of the body,   wherein a plurality of heat conductive beads and a refrigerant are filled in the accommodation grooves in a state where the refrigerant permeates between the heat conductive beads.   
     
     
         15 . A heat cooler comprising:
 a sealing member attached to a heat-generating device to receive heat from the heat-generating device; and   a heat conductive body hermetically coupled to a top surface of the sealing member,   wherein a plurality of hollow protrusions are formed in one piece with the body and are independently sealed with the sealing member, and   a plurality of heat conductive beads and a refrigerant are filled in the hollow protrusions in a state where the refrigerant permeates between the heat conductive beads.   
     
     
         16 . The heat cooler of  claim 15 , wherein vacuum spaces are formed in portions of the hollow protrusions where the heat conductive beads are not filled. 
     
     
         17 . A heat cooler comprising:
 a heat conductive body having a one-piece pipe shape and sealed with sealing members at both ends thereof;   a heat conductive beads filled in the body; and   a refrigerant filling gaps formed between the heat conductive beads.   
     
     
         18 . The heat cooler of  claim 17 , wherein a groove is formed on an inner surface of the body in a length direction of the body, or a wick is disposed in the body. 
     
     
         19 . A heat cooler comprising:
 a one-piece heat conductive body comprising a plurality of longitudinal independent penetration holes positioned close to each other;   sealing members disposed on both ends of the body to seal the penetration holes;   a plurality of heat conductive beads filled in the penetration holes; and   a refrigerant filling gaps formed between the heat conductive beads.