Heat sink for chips

Abstract

A heat sink includes a first heat dispensing unit including multiple heat dispensing plates between which chips are clamped. A base board is connected on a top of the first heat dispensing unit and a second heat dispensing unit is fixed on a top of the base board. The base board is connected to the first heat dispensing unit by two clamping members. The second heat dispensing unit can be a fan, a water-cooling unit or an aluminum extruding member.

1 . A heat sink comprising:
 a first heat dispensing unit including multiple heat dispensing plates which are adapted to clamp chips therebetween;   a base board having a contact surface defined in an underside of the base board, the contact surface being in contact with a top of the first heat dispensing unit, a second heat dispensing unit fixed on a top of the base board, and   two clamping members connecting the base board to the first heat dispensing unit.   
   
   
       2 . The heat sink as claimed in  claim 1 , wherein each heat dispensing plate of the first heat dispensing unit includes recesses defined in two ends thereof and the clamp members connect two ends of the base board and the recesses of the first heat dispensing unit. 
   
   
       3 . The heat sink as claimed in  claim 1 , wherein the base board includes a hole defined therethrough and the second heat dispensing unit is located corresponding to the hole. 
   
   
       4 . The heat sink as claimed in  claim 1 , the second heat dispensing unit is a fan. 
   
   
       6 . The heat sink as claimed in  claim 1 , the second heat dispensing units is a water-cooling unit. 
   
   
       7 . The heat sink as claimed in  claim 1 , the second heat dispensing unit is an aluminum extruding member. 
   
   
       8 . The heat sink as claimed in  claim 7 , wherein the base board is integrally connected with the aluminum extruding member. 
   
   
       9 . The heat sink as claimed in  claim 7 , wherein the base board is integrally connected with the clamping members which are connected on two ends of the base board, an opening is defined through the base board and the aluminum extruding member extends through the opening. 
   
   
       10 . The heat sink as claimed in  claim 1 , wherein each clamping member includes a top part and a connection part extends from a side of the top part, a hook part extends from a distal end of the connection part, the top part is fixed to the baser board and the hook part is engaged with the recesses of the first heat dispensing unit.