CPU cooling structure

Abstract

A CPU cooling structure includes a heat sink and an axial flow fan adapted to dissipate heat from the CPU of the motherboard in a computer, the heat sink having a hollow center shaft filled up with a heat transfer fluid and a plurality of radiation fins equiangularly radially arranged around the periphery of the center shaft and curved in direction corresponding or reversed to the direction of rotation of the fan blade and hub assembly of the axial flow fan.

What the invention claimed is:  
     
         1 . A CPU cooling structure comprising a heat sink disposed in contact with the surface of the CPU (central processing unit) of the motherboard in a computer, and an axial flow fan fastened to a top side of said heat sink and having a fan blade and hub assembly rotated to cause an axial flow of air toward said heat sink and said CPU and to dissipate heat from said heat sink and said CPU, wherein said heat sink comprises a center shaft and a plurality of radiation fins equiangularly radially arranged around the periphery of said center shaft and curved in direction reversed to the direction of rotation of the fan blade and hub assembly of said axial flow fan.  
     
     
         2 . The CPU cooling structure as claimed in  claim 1  wherein said center shaft comprises an enclosed fluid chamber and a heat transfer fluid filled in said enclosed fluid chamber.  
     
     
         3 . A CPU cooling structure comprising a heat sink disposed in contact with the surface of the CPU (central processing unit) of the motherboard in a computer, and an axial flow fan fastened to a top side of said heat sink and having a fan blade and hub assembly rotated to cause an axial flow of air toward said heat sink and said CPU and to dissipate heat from said heat sink and said CPU, wherein said heat sink comprises a center shaft and a plurality of radiation fins equiangularly radially arranged around the periphery of said center shaft and curved in direction corresponding to the direction of rotation of the fan blade and hub assembly of said axial flow fan, said center shaft comprising an enclosed fluid chamber and a heat transfer fluid filled in said enclosed fluid chamber.