Heat pipe and method for manufacturing the same

Abstract

The present invention provides a heat pipe and a method for manufacturing the same. The heat pipe includes a main body having a chamber. The chamber has at least one wick region and at least one flowing channel region. The wick region is positioned adjacent to the flowing channel region and both of them axially extend in the chamber. The wick region is provided on an inner wall of the chamber. An area occupied by the wick region is smaller than a half of the circumference of the inner wall of the chamber. A wick structure in the heat pipe can be prevented from suffering damage during its production and the yield of production is increased.

What is claimed is: 
     
         1 . A heat pipe, including a main body having a chamber, the chamber having at least one wick region and at least one flowing channel region, the wick region being positioned adjacent to the flowing channel region and both of them axially extending in the chamber, the wick region being provided on an inner wall of the chamber, an area occupied by the wick region being smaller than a half of the circumference of the inner wall of the chamber. 
     
     
         2 . The heat pipe according to  claim 1 , wherein the wick region further has a first wick member and a second wick member, the first wick member and the second wick member are provided in the chamber to correspond to each other, the first wick member and the second wick member are formed with a plurality of grooves. 
     
     
         3 . The heat pipe according to  claim 1 , wherein the wick region has a plurality of grooves. 
     
     
         4 . The heat pipe according to  claim 2 , wherein the chamber further has a first side, a second side, a third side, and a fourth side, the first side and the second side correspond to each other, the third side and the fourth side correspond to each other, the first, second sides are connected to the third, fourth sides, the first wick member is provided on the first side, the second wick member is provided on the second side, the flowing region has a first flowing channel and a second flowing chamber, the first flowing channel is provided on an intersecting portion among the third side, the first wick member and the second wick member, the second flowing channel is provided on an intersecting portion among the fourth side, the first wick member and the second wick member. 
     
     
         5 . The heat pipe according to  claim 4 , wherein the thickness of the first side or the second side is larger than the thickness of the third side or the fourth side. 
     
     
         6 . The heat pipe according to  claim 1 , wherein the chamber further has a first side, a second side, a third side, and a fourth side, the first side and the second side correspond to each other, the third side and the fourth side correspond to each other, the first, second sides are connected to the third, fourth sides, the first wick member is provided on the first side, the flowing region has a first flowing channel and a second flowing chamber, the first flowing channel is provided on an intersecting portion between the third side and the wick region, the second flowing channel is provided on an intersecting portion between the fourth side and the wick region. 
     
     
         7 . The heat pipe according to  claim 6 , wherein the thickness of the first side of the main body is larger than the thickness of the second side, the third side or the fourth side. 
     
     
         8 . The heat pipe according to  claim 1 , further having a supporting structure axially extending in the chamber, the supporting structure being provided to correspond to the wick region, the flow channel region having a first flowing channel and a second flowing channel, the first flowing channel and the second flowing channel being provided on both sides of the supporting structure and the wick region. 
     
     
         9 . The heat pipe according to  claim 8 , wherein the wick region has a plurality of grooves, the supporting structure is made by any one of sintered powders, meshes, and fibers 
     
     
         10 . A method for manufacturing a heat pipe, including steps of:
 providing a hollow pipe body;   forming a plurality of grooves on an inner wall of the hollow pipe body;   pressing the hollow pipe body flat; and   degassing the hollow pipe body, filling a working fluid in the hollow pipe body, and sealing the hollow pipe body.   
     
     
         11 . The method according to  claim 10 , wherein forming the grooves on the inner wall of the hollow pipe body is achieved by a mechanical process, the mechanical process is selected from any one a grinding process, a milling process, a shaving process and a draw-forming process. 
     
     
         12 . The method according to  claim 10 , wherein pressing the hollow pipe body flat is achieved by any one of a punching process and a rolling process. 
     
     
         13 . A method for manufacturing a heat pipe, including steps of:
 providing a hollow pipe body;   forming a plurality of grooves on an inner wall of the hollow pipe body;   degassing the hollow pipe body, filling a working fluid in the hollow pipe body, and sealing the hollow pipe body; and   pressing the hollow pipe body flat.   
     
     
         14 . The method according to  claim 13 , wherein forming the grooves on the inner wall of the hollow pipe body is achieved by a mechanical process, the mechanical process is selected from any one a grinding process, a milling process, a shaving process and a draw-forming process. 
     
     
         15 . The method according to  claim 13 , wherein pressing the hollow pipe body flat is achieved by any one of a punching process and a rolling process.