Heat sink

Abstract

A heat sink includes a fin set, a heat pipe and a fastener. The heat pipe has a heat-dissipating end and a heat-absorbing end. The heat-dissipating end is disposed through the fin set. The heat-absorbing end has a connecting side and a heat-absorbing side. The fastener has a body and a plurality of fixing ends. The body is assembled with the fin set. The center of the body is provided with at least one groove in such a manner that the heat-absorbing side protrudes from the groove directly to be brought into contact with a heat-generating element for thermal conduction. By this structure, thermal resistance is reduced while the thermal-conducting efficiency is increased.

1 . A heat sink, including:
 a fin set having a plurality of fins stacked up each other, two opposite sides of the fin set being provided with a first fold and a second fold respectively;   at least one heat pipe having a heat-dissipating end and a heat-absorbing end, the heat-dissipating end being disposed through the fins, the heat-absorbing end having a connecting side and a heat-absorbing side, the connecting side being opposite to the heat-absorbing side, the connecting side being brought into contact with the first fold, the heat-absorbing side being brought into contact with at least one heat-generating element;   at least one fastener having a body and a plurality of fixing ends, the fixing ends being formed by extending outwards from the body, the center of the body being provided with at least one groove, the body having a first side surface and a second side surface, the first side surface being connected to the first fold of the fin set.   
     
     
         2 . The heat sink according to  claim 1 , wherein the fixing end of the fastener further has at least one through-hole. 
     
     
         3 . The heat sink according to  claim 1 , wherein the first fold is provided with a curved groove abutting against the connecting side of the heat pipe. 
     
     
         4 . The heat sink according to  claim 1 , wherein the fin set is combined with the fastener by means of soldering or engagement. 
     
     
         5 . The heat sink according to  claim 1 , wherein the fastener further has an engaging end engaged with the first fold of the fin set.