Heat sink

Abstract

A heat sink comprises a fin of the heat sink and a cooling set located on the fin of the heat sink. The fin of the heat sink includes a heat conduction portion and a plurality of cooling sheets extended integrally from the heat conduction portion. The heat conduction portion is hollow to form a housing space with at least one opening. The cooling set includes a butting member and a bracing member that are held in the housing space through the opening. The bracing member supports the butting member in the housing space to butt the heat conduction portion. The housing space also holds a cooling liquid and is sealed by a lid on the opening. The integrated cooling sheets and heat conduction portion can improve cooling efficiency and rapidly conduct a greater amount of heat to perform cooling.

1 . A heat sink, comprising:
 a fin including a heat conduction portion extended integrally to form a plurality of cooling sheets, the heat conduction portion being hollow to form a housing space which includes at least one end formed an opening thereon; and   a cooling set which includes a butting member and a bracing member that are held in the housing space through the opening, the bracing member supporting the butting member in the housing space in contact with the heat conduction portion, the housing space also holding a cooling liquid and being sealed by a lid on the opening.   
     
     
         2 . The heat sink of  claim 1 , wherein the cooling sheets and the heat conduction portion are integrally formed through aluminum extrusion. 
     
     
         3 . The heat sink of  claim 1 , wherein the cooling sheets are integrally extended from the heat conduction portion in a radial manner. 
     
     
         4 . The heat sink of  claim 1 , wherein the cooling sheets are integrally extended from the heat conduction portion in parallel with each other. 
     
     
         5 . The heat sink of  claim 1 , wherein the lid includes an end surface which is on a same plane with an end surface of the heat conduction portion. 
     
     
         6 . The heat sink of  claim 1 , wherein the lid includes an end surface which is on different planes with an end surface of the heat conduction portion. 
     
     
         7 . The heat sink of  claim 1 , wherein the butting member is a mesh article. 
     
     
         8 . The heat sink of  claim 1 , wherein the heat conduction portion includes a recess on the periphery of the opening to hold the lid. 
     
     
         9 . The heat sink of  claim 1 , wherein the lid includes an aperture communicating to the housing space. 
     
     
         10 . The heat sink of  claim 1 , wherein the lid is a heat conductor with high heat conductivity. 
     
     
         11 . The heat sink of  claim 1 , wherein the bracing member is a spring.