Heat Sink

Abstract

The heat sink includes a fin set and a heat pipe. The fin set is composed of a plurality of fins and has an exposed area formed on one side thereof. The heat pipe penetrates through the fin set and the exposed area. A portion of the heat pipe is exposed and flattened in the exposed area. The exposed and flattened portion is used for connecting a heat generating device as a thermal junction surface.

1 . A heat sink comprising:
 a fin set composed of a plurality of fins, having an exposed area formed on one side thereof; and   at least one heat pipe, penetrating through the fin set and the exposed area, wherein a portion of the at least one heat pipe is exposed and flattened in the exposed area for directly attaching an electronic component to be mounted.   
     
     
         2 . The heat sink of  claim 1 , wherein the at least one heat pipe is two or more in number, and the flattened portions of the heat pipes are coplanar. 
     
     
         3 . The heat sink of  claim 1 , wherein the fins are of two types, the first type fins are separately provided with circular holes for being passed through by the at least one heat pipe, the second type fins are separately provided with semicircular holes for accommodating the at least one heat pipe, and the exposed portion of the at least one heat pipe is formed by the second type fins. 
     
     
         4 . The heat sink of  claim 3 , wherein the second type fins are sandwiched between two groups of the first type fins. 
     
     
         5 . The heat pipe of  claim 3 , wherein each of the circular holes and the semicircular holes is provided with a circular surrounding wall and a semicircular wall, respectively. 
     
     
         6 . The heat sink of  claim 1 , wherein the exposed area is dented to form a recess in the fin set. 
     
     
         7 . The heat sink of  claim 1 , wherein the exposed area is protrudent from the fin set. 
     
     
         8 . The heat sink of  claim 1 , wherein the exposed area occupies a whole side of the fin set.