Heat sink

Abstract

A heat sink has a conducting heat seat, multiple heat pipes and multiple heat dissipating fins. The heat pipes are mounted through the conducting heat seat and each heat pipe has a central portion and two distal portions. The central portion is flat. The distal portions on one side of the conducting heat seat lined zigzag. The flat central portions and zigzag lined distal portions allow more heat pipes to be mounted through the seat per unit area. The heat dissipating fins are separately mounted on the first conducting distal portions of the heat pipes to transfer heat to the atmosphere.

1 . A heat sink comprising
 a conducting heat seat having two opposite sides;   multiple heat pipes being mounted through the conducting heat seat and each heat pipe having
 a central portion being substantially flat and having
 a longitudinal depth; 
 a vertical thickness being less than the longitudinal depth; 
 a transverse length; and 
 two ends; and 
 
 two distal portions being respectively formed on the ends of the heat pipe and being substantially perpendicularly to the conducting heat seat, the distal portions of the heat pipes on one side of the conducting heat seat are arranged in a zigzag line; and 
   multiple heat dissipating fins being separately mounted around the distal portions of the heat-pipes and having
 multiple through holes being formed through the heat dissipating fin, corresponding respectively to and being mounted respectively around the distal ends of the heat pipes, aligning with through holes in adjacent dissipating fins and each through hole having
 a rim; and 
 a shoulder being formed around the rim of the through hole. 
 
   
     
     
         2 . The heat sink as claimed in  claim 1 , wherein
 the conducting heat seat has
 a base having
 an inner surface; and 
 multiple base recesses being formed in the inner surface of the conducting heat seat; and 
 
 a cover being mounted securely on the base and having
 an inner surface; 
 multiple cover recesses being formed in the inner surface of the cover and respectively corresponding to the base recesses; and 
 
   the heat pipes are mounted respectively in the base recesses of the base and mounted respectively in the cover recesses of the cover and each central portion is mounted in one base recess of the base and one cover recess of the cover.   
     
     
         3 . The heat sink as claimed in  claim 2 , wherein the central portions of the adjacent heat pipes are separate. 
     
     
         4 . The heat sink as claimed in  claim 2 , wherein the central portions of adjacent heat pipes abut and contact each other.