Heat sink and method for manufacturing the same

Abstract

A heat sink composed of a fin set and a seat and a method for manufacturing the same are disclosed. One side of the seat is provided with a plurality of rail rods whose cross sections are of a hook shape. One side of the fin set is formed with a plurality of slots corresponding to the rail rods. Thus the fin set and the seat can be assembled by engagement of the rail rods and slots. A press mold is employed to press the rail rods, thus the rail rods are deformed to make the fin set and seat tightly engage with each other.

1 . A heat sink comprising:
 a seat, being provided with a plurality of parallel rail rods on one side thereof, wherein a cross section of each of the rail rods is of a hook shape; and   a fin set, being formed with a plurality of slots corresponding to the rail rods;   wherein the rail rods are separately accommodated in the slots, and the seat and the fin set are tightly assembled together by deformation of the rail rods.   
     
     
         2 . The heat sink of  claim 1 , wherein the cross section of each of the rail rods is T-shaped and the slots are the same in shape. 
     
     
         3 . The heat sink of  claim 1 , wherein the cross section of each of the rail rods is inverted-L-shaped and the slots are the same in shape. 
     
     
         4 . The heat sink of  claim 1 , wherein the cross section of each of the rail rods is of a T-shape with an indent at a center of a horizontal bar thereof and the slots are T-shaped. 
     
     
         5 . The heat sink of  claim 1 , wherein the cross section of each of the rail rods is Y-shaped and the slots are T-shaped. 
     
     
         6 . The heat sink of  claim 1 , wherein the seat is a cuboid and the fin set has a hollow for accommodating the seat. 
     
     
         7 . The heat sink of  claim 6 , wherein sides of the seat are provided with a plurality of rail rods and the fin set is provided with corresponding slots. 
     
     
         8 . The heat sink of  claim 6 , wherein the cross section of each of the rail rods is T-shaped and the slots are the same in shape. 
     
     
         9 . The heat sink of  claim 7 , wherein the cross section of each of the rail rods is T-shaped and the slots are the same in shape. 
     
     
         10 . The heat sink of  claim 6 , wherein the cuboidal seat is hollow. 
     
     
         11 . A method for manufacturing a heat sink, comprising the steps of:
 a) providing a seat, wherein the seat is provided with a plurality of parallel rail rods on one side thereof, and a cross section of each of the rail rods is of a hook shape; and   b) providing a fin set, wherein the fin set is formed with a plurality of slots corresponding to the rail rods;   c) embedding the rail rods into the slots; and   d) pressing the rail rods to be deformed, so that the seat and the fin set are tightly assembled together.   
     
     
         12 . The method of  claim 11 , wherein the cross section of each of the rail rods is T-shaped and the slots are the same in shape. 
     
     
         13 . The method of  claim 11 , wherein the cross section of each of the rail rods is inversed-L-shaped and the slots are the same in shape. 
     
     
         14 . The method of  claim 11 , wherein the cross section of each of the rail rods is of a T-shape with an indent at a center of a horizontal bar thereof and the slots are T-shape. 
     
     
         15 . The method of  claim 11 , wherein the cross section of each of the rail rods is Y-shaped and the slots are T-shaped. 
     
     
         16 . The method of  claim 11 , wherein the seat is a cuboid and the fin set has a hollow for accommodating the seat. 
     
     
         17 . The method of  claim 16 , wherein sides of the seat are provided with a plurality of rail rods and the fin set is provided with corresponding slots. 
     
     
         18 . The method of  claim 16 , wherein the cross section of each of the rail rods is T-shaped and the slots are the same in shape. 
     
     
         19 . The method of  claim 17 , wherein the cross section of each of the rail rods is T-shaped and the slots are the same in shape. 
     
     
         20 . The method of  claim 16 , wherein the cuboidal seat is hollow.