Heat sink

Abstract

A heat sink has a fin set and at least one heat pipe. The fin set has multiple stacked fins and at least one tapered tube. Each fin has at least one protrusion. The at least one protrusion protrudes from each fin and each protrusion has an internal surface. The at least one tapered tube is defined through corresponding protrusions of the fins. The at least one heat pipe has at least one tapered arm and a pipe wall. The tapered arm corresponds to and is mounted through a corresponding tapered tube of the fin set. The pipe wall of the heat pipe abuts the internal surfaces of corresponding protrusions of the fins tightly so heat can be dissipated efficiently during use.

1 . A heat sink comprising:
 a fin set comprising multiple sequentially stacked fins, each fin having at least one protrusion protruding from the fin and defining a tapered hole corresponding to and aligning with the tapered hole of subsequent adjacent fins to define a tapered tube through the fin set and having an internal surface; and   at least one heat pipe having at least one tapered arm corresponding to and mounted through a corresponding tapered tube of the fin set and having a pipe wall abutting corresponding internal surfaces of the protrusions of the fins.   
     
     
         2 . The heat sink as claimed in  claim 1 , wherein the at least one heat pipe is U-shaped and has
 a central arm having two ends; and   two tapered arms respectively formed on the ends of the central arm and each tapered arm formed tapered and mounted through corresponding tapered tube of the fin set.   
     
     
         3 . The heat sink as claimed in  claim 1  further having solder filled between the pipe wall of the at least one heat pipe and the internal surfaces of the protrusions. 
     
     
         4 . The heat sink as claimed in  claim 2  further having solder filled between the pipe wall of the at least one heat pipe and the internal surfaces of the protrusions. 
     
     
         5 . The heat sink as claimed in  claim 1  further having a metal seat mounted around the heat pipe. 
     
     
         6 . The heat sink as claimed in  claim 2  further having a metal seat mounted around the central arm of the heat pipe. 
     
     
         7 . The heat sink as claimed in  claim 3  further having a metal seat mounted around the heat pipe. 
     
     
         8 . The heat sink as claimed in  claim 4  further having a metal seat mounted around the central arm of the heat pipe.