Heat sink for an electrical device and method of manufacturing the same

Abstract

A heat sink for an electrical device has a frame and at least one fin. The frame has an inner chamber. The fin is mounted in the inner chamber of the frame to separate the inner chamber of the frame into at least two channels. Therefore, heat generated from any electrical element connected to or mounted on the heat sink will transfer evenly to the heat sink. The heat sink not only dissipates heat evenly, but also provides multiple channels to dissipate heat by convection. Because the heat sink only has one frame, assembly of an electrical device is easy and quick.

1 . A heat sink for an electrical device comprising
 a frame, having
 an inner chamber; 
 two mounting sides being defined as opposite to each other and being adapted to allow generating heat elements of the electrical device to be mounted on the mounting sides; and 
 two non-mounting sides being defined as opposite to each other and at least one of the non-mounting sides allowing the heat sink to be fastened to the electrical device; 
   at least one fin mounted in the inner chamber of the frame to separate the inner chamber of the frame into at least two channels and each fin having two edges being connected respectively to the two mounting sides of the frame.   
   
   
       2 . The heat sink for an electrical device as claimed in  claim 1 , wherein each fin is rectangular. 
   
   
       3 . The heat sink for an electrical device as claimed in  claim 2 , wherein
 the frame is made of extruded aluminum; and the at least one fin is aluminum extruded from the frame.   
   
   
       4 . The heat sink for an electrical device as claimed in  claim 1 , wherein said electrical device is an UPS. 
   
   
       5 . A method of manufacturing a heat sink for an electrical device comprising steps of:
 a) making a frame which has
 an inner chamber; 
 two mounting sides being defined as opposite to each other and being used for mounting generating heat electrical elements; and 
 two non-mounting sides being defined as opposite to each other and at least one of them being used for fastening the heat sink to the electrical device; and 
   b) mounting at least one fin in the inner chamber of the frame to separate the inner chamber of the frame into at least two channels and each fin having two edges being connected respectively to the two mounting sides of the frame.   
   
   
       6 . The method of  claim 5 , wherein the frame is a parallelepiped. 
   
   
       7 . The method of  claim 5 , wherein each fin is rectangular. 
   
   
       8 . The method of  claim 6 , wherein each fin is parallel with the two non-mounting sides of the frame. 
   
   
       9 . The method of  claim 5 , wherein
 the frame is made of extruded aluminum; and   the at least one fin is aluminum extruded from the frame.