Heat sink fin structure

Abstract

A heat sink fin structure includes a fin assembly and a protection unit. The fin assembly includes multiple radiating fins and an outside radiating fin. The outside radiating fin has a first main body. The protection unit has a second main body. The first main body has at least one first protrusion edge. The second main body has at least one second protrusion edge. The second protrusion edge is assembled with the first protrusion edge so as to minimize the possibility of injury to an operator due to the exposed first protrusion edge. Also, the fin structure can be reinforced and the production efficiency of the fin structure can be promoted by means of the protection unit.

1 . A heat sink fin structure comprising:
 a fin assembly composed of multiple radiating fins that are stacked and assembled with each other, the fin assembly including an outside radiating fin having a first main body, the first main body having at least one first protrusion edge protruding from the first main body in a stacking direction; and   a protection unit having a second main body, the second main body having at least one second protrusion edge protruding to the outside radiating fin, the second protrusion edge being assembled with the first protrusion edge.   
     
     
         2 . The heat sink fin structure as claimed in  claim 1 , wherein the second main body of the protection unit has at least one second connection section for connecting with the first protrusion edge. 
     
     
         3 . The heat sink fin structure as claimed in  claim 2 , wherein the first protrusion edge has a first connection section positioned where the second connection section is positioned for connecting with the second connection section. 
     
     
         4 . The heat sink fin structure as claimed in  claim 3 , wherein the second connection section is a key section, while the first connection section is a hole, whereby when the protection unit is assembled with the first protrusion edge, the key section is inserted in the hole. 
     
     
         5 . The heat sink fin structure as claimed in  claim 1 , wherein the second protrusion edge is assembled with the first protrusion edge by means of engagement, adhesion, insertion or press fit. 
     
     
         6 . The heat sink fin structure as claimed in  claim 1 , wherein the protection unit is a reverse radiating fin assembled with the fin assembly. 
     
     
         7 . The heat sink fin structure as claimed in  claim 1 , wherein the first protrusion edges of the outside radiating fin define an open space. 
     
     
         8 . The heat sink fin structure as claimed in  claim 1 , wherein the protection unit is assembled with an inner side or an outer side of the first protrusion edge. 
     
     
         9 . The heat sink fin structure as claimed in  claim 1 , wherein the protection unit has a top section and a bottom section, the top section being assembled with the inner side of the first protrusion edge, while the bottom section is assembled with the outer side of the first protrusion edge. 
     
     
         10 . The heat sink fin structure as claimed in  claim 1 , wherein the protection unit has a top section and a bottom section, the top section being assembled with the outer side of the first protrusion edge, while the bottom section is assembled with the inner side of the first protrusion edge.