Heat dissipation assembly and latch apparatus of the same

Abstract

A heat dissipation assembly includes a heat sink, a mounting member fixed to the heat sink, a pivot member pivotably attached to the mounting member, and a latch member attached to the pivot member. The latch member includes a first latch portion and a second latch portion. The pivot member is pivoted to switch between using the first latch portion or the second latch portion to be fixed to different types of circuit boards.

1 . A heat dissipation assembly comprising:
 a heat sink comprising a base and a plurality of fins extending up from the base;   a mounting member fixed to a side of the heat sink;   a pivot member pivotably attached to the mounting member; and   a latch member attached to the pivot member, wherein the latch member comprises a first latch portion and a second latch portion, the pivot member is pivoted to switch the first latch portion or the second latch portion to be fixed to different types of circuit boards.   
     
     
         2 . The heat dissipation assembly of  claim 1 , wherein the latch member comprises a pole slidably attached to the pivot member, the first and second latch portions are formed from opposite ends of the pole. 
     
     
         3 . The heat dissipation assembly of  claim 2 , wherein two resilient members are set around the pole of the latch member, one of the resilient members is positioned between the first latch portion and the pivot member, the other of the resilient members is positioned between the second latch portion and the pivot member. 
     
     
         4 . The heat dissipation assembly of  claim 2 , wherein the first latch portion and the second latch portion are fixed to the pole by welding or screwing. 
     
     
         5 . The heat dissipation assembly of  claim 1 , wherein the first latch portion is substantially tapered, and comprises a plurality of elastic tenons slantingly extending up from the tapered end of the first latch portion around the first latch portion. 
     
     
         6 . The heat dissipation assembly of  claim 1 , wherein the second latch portion comprises a hook. 
     
     
         7 . A latch apparatus for latching a heat sink to a circuit board, the latch apparatus comprising:
 a mounting member fixed to the heat sink;   a pivot member pivotably attached to the mounting member; and   a latch member attached to the pivot member, wherein the latch member comprises a first latch portion and a second latch portion, the pivot member is operable to pivot to switch the first latch portion or the second latch portion to be fixed to different types of circuit boards.   
     
     
         8 . The latch apparatus of  claim 7 , wherein the latch member comprises a pole slidably attached to the pivot member, the first and second latch portions are formed from opposite ends of the pole. 
     
     
         9 . The latch apparatus of  claim 8 , wherein two resilient members are set around the pole of the latch member, one of the resilient members is positioned between the first latch portion and the pivot member, the other of the resilient members is positioned between the second latch portion and the pivot member. 
     
     
         10 . The latch apparatus of  claim 8 , wherein the first latch portion and the second latch portion are fixed to the pole by welding or screwing. 
     
     
         11 . The latch apparatus of  claim 7 , wherein the first latch portion is substantially tapered, and comprises a plurality of elastic tenons slantingly extending up from the tapered end of the first latch portion around the first latch portion. 
     
     
         12 . The latch apparatus of  claim 7 , wherein the second latch portion comprises a hook.