Clip module and heat-dissipation apparatus having the same

Abstract

A heat-dissipation apparatus is disclosed. The heat-dissipation apparatus is suitable to dissipate heat generated by a heat source and includes a retention module (RM) around the heat source, a heat sink provided at the heat source, and a clip module. The clip module includes a body, a fastener, and a pressing structure. One end of the body is fastened on the RM, and the heat-sink is pressed on the heat source by the body. The fastener is provided at the other end of the body. One end of the fastener is fastened on the RM, and the pressing structure is pivotally connected to the other end of the fastener along a rotating axis. The pressing structure is suitable to rotate to be fastened at a fixing part of the fastener, so that the body is pressed by the pressing structure.

What is claimed is: 
     
         1 . A clip module suitable to cooperate with a retention module to fasten a heat sink on a heat source, wherein the retention module has a first fastening part and a second fastening part, the clip module comprising:
 a body comprising a first retaining part, a third fastening part and a first connecting part, wherein the first retaining part is suitable to press the heat sink on the heat source, the third fastening part providing at one end of the first retaining part and is suitable to fasten the first fastening part, and the first connecting part providing at the other end of the first retaining part;   a fastener comprising a second connecting part, a pivot, a fixing part and a fourth fastening part, wherein the first connecting part assembling at the second connecting part, the pivot and the fixing part are providing at two sides of the second connecting part, respectively, and the fourth fastening part is suitable to fasten the second fastening part; and   a pressing structure pivotally connecting the pivot along a rotating axis and is suitable to rotate along the rotating axis to fasten at the fixing part, thus to press the body.   
     
     
         2 . The clip module according to  claim 1 , wherein the pressing structure comprises a third connecting part pivotally connected to the pivot along the rotating axis and a pressing part being suitable to rotate along the rotating axis to be fastened on the fixing part. 
     
     
         3 . The clip module according to  claim 2 , wherein the pressing structure further comprises a second retaining part provided between the third connecting part and the pressing part and being suitable to press the body. 
     
     
         4 . The clip module according to  claim 1 , wherein the body, the fastener and the pressing structure are sheet metal parts. 
     
     
         5 . The clip module according to  claim 1 , wherein the second connecting part has a limiting structure to limit the operation range of the first connecting part. 
     
     
         6 . The clip module according to  claim 1 , wherein the rotating axis is parallel to the direction of a groove of the heat sink. 
     
     
         7 . A heat-dissipation apparatus suitable to dissipate heat generated by a heat source on a circuit board, the heat-dissipation apparatus comprising:
 a retention module provided on the circuit board and around the heat source, wherein the retention module has a first fastening part and a second fastening part;   a heat sink provided on the heat source; and   a clip module provided across the heat sink and fastened on the retention module, the clip module comprising:
 a body comprising a first retaining part, a third fastening part and a first connecting part, wherein the first retaining part is suitable to press the heat sink on the heat source, the third fastening part is provided at one end of the first retaining part and suitable to be fastened at the first fastening part, and the first connecting part is provided at the other end of the first retaining part; 
 a fastener comprising a second connecting part, a pivot, a fixing part and a fourth fastening part, wherein the first connecting part is assembled at the second connecting part, the pivot and the fixing part are provided at the two sides of the second connecting part, respectively, and the fourth fastening part is suitable to be fastened at the second fastening part; and 
 a pressing structure pivotally connected to the pivot along a rotating axis and suitable to rotate along the rotating axis to be fastened at the fixing part and then press the body. 
   
     
     
         8 . The heat-dissipation apparatus according to  claim 7 , wherein the pressing structure comprises a third connecting part pivotally connected to the pivot along the rotating axis and a pressing part being suitable to rotate along the rotating axis to be fastened at the fixing part. 
     
     
         9 . The heat-dissipation apparatus according to  claim 8 , wherein the pressing structure further comprises a second retaining part provided between the third connecting part and the pressing part and being suitable to press on the body. 
     
     
         10 . The heat-dissipation apparatus according to  claim 7 , wherein the body, the fastener and the pressing structure are sheet metal parts. 
     
     
         11 . The heat-dissipation apparatus according to  claim 7 , wherein the second connecting part has a limiting structure to limit the operation range of the first connecting part. 
     
     
         12 . The heat-dissipation apparatus according to  claim 7 , wherein the rotating axis is parallel to the direction of a groove of the heat sink.