Plate type heat pipe and heat sink using the same

Abstract

A plate-type heat pipe includes a sealed shell containing working liquid therein, and elongated wick structures arranged in the shell in a spaced manner. Channels are formed between the wick structures. The heat pipe has an evaporating section and a condensing section. Two ends of each wick structure are respectively located at the evaporating section and the condensing section. Top and bottom faces of each wick structure respectively contact top and bottom inner faces of the shell.

1 . A plate type heat pipe comprising:
 a sealed shell;   a working fluid filled in the shell; and   a plurality of elongated wick structures arranged in the shell in a spaced manner, a plurality of channels being defined between the wick structures, the heat pipe having an evaporating section and a condensing section, two ends of each wick structure being respectively located at the evaporating section and the condensing section, and top and bottom faces of each wick structure respectively contacting top and bottom inner faces of the shell.   
     
     
         2 . The plate type heat pipe of  claim 1 , wherein the wick structures are sintered metal powder. 
     
     
         3 . The plate type heat pipe of  claim 1 , wherein the wick structures are sintered ceramic powder. 
     
     
         4 . The plate type heat pipe of  claim 1 , wherein portions of the wick structures corresponding to the condensing section of the heat pipe are connected each other by sintered metal powder or ceramic powder. 
     
     
         5 . The plate type heat pipe of  claim 4 , wherein the portions of the wick structures corresponding to the condensing section of the heat pipe define a passage, the passage being substantially perpendicular to and communicating with the channels. 
     
     
         6 . The plate type heat pipe of  claim 1 , wherein portions of the wick structures corresponding to the condensing section of the heat pipe define a passage, the passage being substantially perpendicular to and communicating with the channels. 
     
     
         7 . The plate type heat pipe of  claim 1 , wherein portions of the wick structures corresponding to each of the evaporating section and the condensing section of the heat pipe are connected each other by sintered metal powder or ceramic powder. 
     
     
         8 . The plate type heat pipe of  claim 7 , wherein the portions of the wick structures corresponding to each of the evaporating section and the condensing section of the heat pipe define a vapor passage, the passage being substantially perpendicular to and communicating with the channels. 
     
     
         9 . The plate type heat pipe of  claim 1 , wherein portions of the wick structures corresponding to each of the evaporating section and the condensing section of the heat pipe define a vapor passage, the passage being substantially perpendicular to and communicating with the channels. 
     
     
         10 . The plate type heat pipe of  claim 1 , wherein the evaporating section and the condensing section are respectively located at different levels. 
     
     
         11 . The plate type heat pipe of  claim 1 , wherein the evaporating section and the condensing section are perpendicular to each other and at the same level. 
     
     
         12 . A heat sink adapted for cooling a heat source, the heat sink comprising:
 a fin assembly comprising a plurality of fins; and   a plate type heat pipe comprising:
 a sealed shell; 
 a working fluid filled in the shell; and 
 a plurality of elongated wick structures arranged in the shell in a spaced manner, a plurality of channels being defined between the wick structures, the heat pipe having an evaporating section adapted for thermally contacting the heat source and a condensing section thermally contacting the fin assembly, two ends of each wick structure being respectively located at the evaporating section and the condensing section, and top and bottom faces of each wick structure respectively contacting top and bottom inner faces of the shell. 
   
     
     
         13 . The heat sink of  claim 12 , wherein the wick structures are sintered metal powder. 
     
     
         14 . The heat sink of  claim 12 , wherein the wick structures are sintered ceramic powder. 
     
     
         15 . The heat sink of  claim 12 , wherein portions of the wick structures corresponding to the condensing section of the heat pipe are connected each other by sintered metal powder or ceramic powder. 
     
     
         16 . The heat sink of  claim 15 , wherein the portions of the wick structures corresponding to the condensing section of the heat pipe define a passage, the passage being substantially perpendicular to and communicating with the channels. 
     
     
         17 . The heat sink of  claim 12 , wherein portions of the wick structures corresponding to the condensing section of the heat pipe define a passage, the passage being substantially perpendicular to and communicating with the channels. 
     
     
         18 . The heat sink of  claim 12 , wherein portions of the wick structures corresponding to each of the evaporating section and the condensing section of the heat pipe are connected each other by sintered metal powder or ceramic powder. 
     
     
         19 . The heat sink of  claim 18 , wherein the portions of the wick structures corresponding to each of the evaporating section and the condensing section of the heat pipe define a vapor passage, the passage being substantially perpendicular to and communicating with the channels. 
     
     
         20 . The heat sink of  claim 12 , wherein portions of the wick structures corresponding to each of the evaporating section and the condensing section of the heat pipe define a vapor passage, the passage being substantially perpendicular to and communicating with the channels.