Heat dissipating device and heat dissipating fin

Abstract

A heat dissipating device includes a heat dissipating fin and a heat pipe. The heat dissipating fin includes a fin body, a through hole and a closed ring-shaped portion, wherein the through hole is formed on the fin body, the closed ring-shaped portion extends from a periphery of the through hole and has a first U-shaped protruding ear, and the first U-shaped protruding ear has a first opening. The heat pipe has a heat dissipating end and a heat absorbing end, wherein the heat dissipating end is opposite to the heat absorbing end and is disposed in the through hole and the closed ring-shaped portion. After punching the closed ring-shaped portion, the first opening of the first U-shaped protruding ear shrinks, such that the closed ring-shaped portion fixes the heat dissipating end in a tight-fitting manner.

What is claimed is: 
     
         1 . A heat dissipating device comprising:
 a heat dissipating fin comprising a fin body, a through hole and a closed ring-shaped portion, the through hole being formed on the fin body, the closed ring-shaped portion extending from a periphery of the through hole and having a first U-shaped protruding ear, the first U-shaped protruding ear having a first opening; and   a heat pipe having a heat dissipating end and a heat absorbing end, the heat dissipating end being opposite to the heat absorbing end, the heat dissipating end being disposed in the through hole and the closed ring-shaped portion, after punching the closed ring-shaped portion, the first opening of the first U-shaped protruding ear shrinks, such that the closed ring-shaped portion fixes the heat dissipating end in a tight-fitting manner.   
     
     
         2 . The heat dissipating device of  claim 1 , wherein the closed ring-shaped portion further has a second U-shaped protruding ear, the second U-shaped protruding ear has a second opening, after punching the closed ring-shaped portion, the second opening of the second U-shaped protruding ear shrinks, such that the closed ring-shaped portion fixes the heat dissipating end in the tight-fitting manner. 
     
     
         3 . The heat dissipating device of  claim 2 , wherein the first U-shaped protruding ear is opposite to the second U-shaped protruding ear. 
     
     
         4 . The heat dissipating device of  claim 1 , wherein the heat dissipating fin further comprises a recess formed on the fin body, and the heat absorbing end is fixed in the recess. 
     
     
         5 . A heat dissipating fin comprising:
 a fin body;   a through hole formed on the fin body; and   a closed ring-shaped portion extending from a periphery of the through hole and having a first U-shaped protruding ear, the first U-shaped protruding ear having a first opening.   
     
     
         6 . The heat dissipating fin of  claim 5 , wherein the closed ring-shaped portion further has a second U-shaped protruding ear, and the second U-shaped protruding ear has a second opening. 
     
     
         7 . The heat dissipating fin of  claim 6 , wherein the first U-shaped protruding ear is opposite to the second U-shaped protruding ear. 
     
     
         8 . The heat dissipating fin of  claim 5 , further comprising a recess formed on the fin body.