Heat dissipation module with wind stop function

Abstract

A heat dissipation module includes a centrifugal fan and a heat dissipation fin array. The centrifugal fan includes at least one axial air inlet and a radial air outlet, wherein the radial air outlet is defined between a first sidewall and an opposite second sidewall with a tongue potion. The heat dissipation fin array is located at the radial air outlet of the centrifugal fan. The heat dissipation fin array and the radial air outlet substantially share an equal length L. The heat dissipation fin array has a middle wind stop section which is closer to the second sidewall than the first sidewall. The wind stop section has a length ranging from about 0.1 L to about 0.42 L.

What is claimed is: 
     
         1 . A heat dissipation module comprising:
 a centrifugal fan comprising at least one axial air inlet and a radial air outlet, wherein the radial air outlet is defined between a first sidewall and an opposite second sidewall with a tongue potion; and   a heat dissipation fin array disposed at the radial air outlet of the centrifugal fan, wherein the heat dissipation fin array and the radial air outlet substantially share an equal length L, the heat dissipation fin array has a middle wind stop section which is closer to the second sidewall than the first sidewall, the wind stop section has a length ranging from about 0.1 L to about 0.42 L.   
     
     
         2 . The heat dissipation module of  claim 1 , wherein the length of the wind stop section is about 0.26 L. 
     
     
         3 . The heat dissipation module of  claim 2 , wherein the wind stop section begins 0.48 L from the first sidewall and ends 0.74 L from the first sidewall. 
     
     
         4 . The heat dissipation module of  claim 1  further comprising a heat pipe which has a first end connected with the heat dissipation fin array and a second opposite end connected with a heat source. 
     
     
         5 . The heat dissipation module of  claim 1 , wherein the wind stop section is a wind-stop sponge contained within the heat dissipation fin array. 
     
     
         6 . The heat dissipation module of  claim 1 , wherein the wind stop section is a wind-stop tape disposed at a side of the heat dissipation fin array which faces the radial air outlet. 
     
     
         7 . The heat dissipation module of  claim 1 , wherein the wind stop section is a wind-stop tape disposed at a side of the heat dissipation fin array which faces away from the radial air outlet. 
     
     
         8 . The heat dissipation module of  claim 1 , wherein the length of the wind stop section is about 0.1 L. 
     
     
         9 . The heat dissipation module of  claim 8 , wherein the wind stop section begins 0.56 L from the first sidewall and ends 0.66 L from the first sidewall. 
     
     
         10 . The heat dissipation module of  claim 1 , wherein the length of the wind stop section is about 0.42 L. 
     
     
         11 . The heat dissipation module of  claim 10 , wherein the wind stop section begins 0.4 L from the first sidewall and ends 0.82 L from the first sidewall. 
     
     
         12 . The heat dissipation module of  claim 1 , wherein the centrifugal fan comprises an impeller with multiple blades, and each blade has a free end curved forward in a rotation direction of the impeller.