Heat sink having heat pipe protection mechanism

Abstract

A heat sink having a heat pipe protection mechanism includes a heat pipe, a metallic sleeve and a plurality of heat-dissipating fins. The heat pipe has an evaporating section and a condensing section. The evaporating section is combined with a heat-dissipating base. The metallic sleeve has a closed end and an open end opposite to the closed end. The condensing section is disposed through the open end of the metallic sleeve. Each of the heat-dissipating fins has a through-hole corresponding to the heat pipe. The metallic sleeve having the condensing section disposed therein is fitted in the through-hole. By this arrangement, the condensing section is completely separated from the outside, so that the heat pipe can be protected from suffering damage due to external impacts or getting rusty. Thus, the lifetime of the heat pipe is maintained, and the frequency of repairing the heat sink is reduced.

What is claimed is: 
     
         1 . A heat sink having a heat pipe protection mechanism, including;
 at least one heat pipe comprising an evaporating section and a condensing section;   a metallic sleeve having a closed end and an open end opposite to the closed end, the condensing section being disposed through the open end of the metallic sleeve; and   a plurality of heat-dissipating fins each having a through-hole corresponding to the heat pipe, the metallic sleeve having the condensing section disposed therein being fitted in the through-hole.   
     
     
         2 . The heat sink having a heat pipe protection mechanism according to  claim 1 , further including a heat-conducting base, and the evaporating section being combined with the heat-conducting base. 
     
     
         3 . The heat sink having a heat pipe protection mechanism according to  claim 2 , wherein the heat-conducting base is provided with at least one trough corresponding to the heat pipe, and the heat pipe is located in the trough. 
     
     
         4 . The heat sink having a heat pipe protection mechanism according to  claim 2 , wherein the heat pipe has a flat surface in flush with a surface of the heat-conducting base. 
     
     
         5 . The heat sink having a heat pipe protection mechanism according to  claim 2 , wherein the condensing section protrudes out of an end surface of the heat-conducting base. 
     
     
         6 . The heat sink having a heat pipe protection mechanism according to  claim 1 , wherein both ends of the metallic sleeve have an opening respectively, one of two openings is combined with a plug, and the plug is configured to seal the opening to form the closed end. 
     
     
         7 . The heat sink having a heat pipe protection mechanism according to  claim 1 , wherein the metallic sleeve is made of materials different from that of the heat pipe. 
     
     
         8 . The heat sink having a heat pipe protection mechanism according to  claim 7 , wherein the metallic sleeve is made of aluminum or stainless steel. 
     
     
         9 . The heat sink having a heat pipe protection mechanism according to  claim 1 , wherein a heat-conducting medium is applied between the heat pipe and the metallic sleeve. 
     
     
         10 . The heat sink having a heat pipe protection mechanism according to  claim 1 , wherein a gap is formed between adjacent two of the heat-dissipating fins, and the periphery of the through-hole of each heat-dissipating fin is formed with an annular flange for maintaining the gap. 
     
     
         11 . A heat sink having a heat pipe protection mechanism, including;
 a heat-conducting base;   at least one heat pipe comprising an evaporating section and a condensing section, the evaporating section being combined with the heat-conducting base;   a partitioning plate fixed to the heat-conducting base and provided with at least one penetration hole corresponding to the heat pipe, the condensing section of the heat pipe protruding beyond the penetration hole;   a metallic sleeve having a closed end and an open end opposite to the closed end, the condensing section being disposed through the open end of the metallic sleeve; and   a plurality of heat-dissipating fins each having a through-hole corresponding to the heat pipe, the metallic sleeve having the condensing section disposed therein being fitted in the through-hole.   
     
     
         12 . The heat sink having a heat pipe protection mechanism according to  claim 11 , wherein the heat-conducting base is provided with at least one trough corresponding to the heat pipe, and the heat pipe is located in the trough. 
     
     
         13 . The heat sink having a heat pipe protection mechanism according to  claim 11 , wherein the heat pipe has a flat surface in flush with a surface of the heat-conducting base. 
     
     
         14 . The heat sink having a heat pipe protection mechanism according to  claim 11 , wherein the condensing section protrudes out of an end surface of the heat-conducting base. 
     
     
         15 . The heat sink having a heat pipe protection mechanism according to  claim 11 , wherein the partitioning plate is located near the open end of the metallic sleeve. 
     
     
         16 . The heat sink having a heat pipe protection mechanism according to  claim 15 , wherein the penetration hole of the partitioning plate is formed into a stepped shape, and the open end of the metallic sleeve abuts against the penetration hole. 
     
     
         17 . The heat sink having a heat pipe protection mechanism according to  claim 11 , wherein the partitioning plate is provided on an end surface of the heat-conducting base. 
     
     
         18 . The heat sink having a heat pipe protection mechanism according to  claim 11 , wherein the periphery of the partitioning plate has a stepped stopping portion. 
     
     
         19 . The heat sink having a heat pipe protection mechanism according to  claim 11 , wherein the partitioning plate and the heat-conducting base are integrally formed together. 
     
     
         20 . The heat sink having a heat pipe protection mechanism according to  claim 11 , wherein both ends of the metallic sleeve have an opening respectively, one of the openings is combined with a plug, and the plug is configured to seal the opening to form the closed end. 
     
     
         21 . The heat sink having a heat pipe protection mechanism according to  claim 11 , wherein the metallic sleeve is made of materials different from that of the heat pipe. 
     
     
         22 . The heat sink having a heat pipe protection mechanism according to  claim 21 , wherein the metallic sleeve is made of aluminum or stainless steel, and a heat-conducting medium is applied between the heat pipe and the metallic sleeve. 
     
     
         23 . The heat sink having a heat pipe protection mechanism according to  claim 11 , wherein a gap is formed between adjacent two of the heat-dissipating fins, and the periphery of the through-hole of each heat-dissipating fin is formed with an annular flange for maintaining the gap.