Heat pipe structure

Abstract

A heat pipe structure includes a main body having a chamber. The chamber has a first side and a second side. A first capillary structure and a second capillary structure are respectively disposed on the first and second sides. A working fluid is filled in the chamber. The first capillary structure has a volume larger than a volume of the second capillary structure but smaller than one half of a circumference of inner wall face of the chamber. The first and second capillary structures are connected with each other. The first and second capillary structures and the inner wall face of the chamber together define at least one vapor passage. By means of the heat pipe structure, the amount of transferred heat is increased and the heat transfer efficiency is greatly enhanced.

What is claimed is: 
     
         1 . A heat pipe structure comprising a main body having a chamber, the chamber having a first side and a second side, a first capillary structure and a second capillary structure being respectively disposed on the first and second sides, a working fluid being filled in the chamber, the first capillary structure having a volume larger than a volume of the second capillary structure, the first and second capillary structures being connected with each other, the first and second capillary structures and inner wall face of the chamber together defining at least one vapor passage. 
     
     
         2 . The heat pipe structure as claimed in  claim 1 , wherein the volume of the first capillary structure is smaller than one half of a circumference of the inner wall face of the chamber. 
     
     
         3 . The heat pipe structure as claimed in  claim 1 , wherein an outer face of the first side of the chamber is correspondingly attached to at least one heat source for conducting heat, at least one heat dissipation unit being correspondingly disposed on an outer face of the second side, the heat dissipation unit being selected from a group consisting of a heat sink, a radiating fin assembly and a water-cooled unit. 
     
     
         4 . The heat pipe structure as claimed in  claim 1 , wherein the first and second capillary structures are selected from a grouping consisting of sintered powder bodies, mesh bodies and fiber bodies. 
     
     
         5 . The heat pipe structure as claimed in  claim 1 , wherein the first capillary structure has a first extension section extending from one side of the first capillary structure, the first extension section being connected with the second capillary structure. 
     
     
         6 . The heat pipe structure as claimed in  claim 1 , wherein the second capillary structure has a second extension section extending from one side of the second capillary structure, the second extension section being connected with the first capillary structure. 
     
     
         7 . The heat pipe structure as claimed in  claim 1 , wherein the inner wall face of the chamber is a smooth wall face. 
     
     
         8 . The heat pipe structure as claimed in  claim 1 , wherein a third capillary structure is disposed on the inner wall face of the chamber, the first and second capillary structures being connected with the third capillary structure. 
     
     
         9 . The heat pipe structure as claimed in  claim 8 , wherein the third capillary structure is selected from a grouping consisting of a sintered powder body, a mesh body, a fiber body and a structure formed with multiple channels. 
     
     
         10 . The heat pipe structure as claimed in  claim 1 , wherein the first capillary structure has a radial extension volume larger than a radial extension volume of the second capillary structure. 
     
     
         11 . The heat pipe structure as claimed in  claim 2 , wherein an outer face of the first side of the chamber is correspondingly attached to at least one heat source for conducting heat, at least one heat dissipation unit being correspondingly disposed on an outer face of the second side, the heat dissipation unit being selected from a group consisting of a heat sink, a radiating fin assembly and a water-cooled unit. 
     
     
         12 . The heat pipe structure as claimed in  claim 2 , wherein the first and second capillary structures are selected from a grouping consisting of sintered powder bodies, mesh bodies and fiber bodies. 
     
     
         13 . The heat pipe structure as claimed in  claim 2 , wherein the first capillary structure has a first extension section extending from one side of the first capillary structure, the first extension section being connected with the second capillary structure. 
     
     
         14 . The heat pipe structure as claimed in  claim 2 , wherein the second capillary structure has a second extension section extending from one side of the second capillary structure, the second extension section being connected with the first capillary structure. 
     
     
         15 . The heat pipe structure as claimed in  claim 2 , wherein the inner wall face of the chamber is a smooth wall face. 
     
     
         16 . The heat pipe structure as claimed in  claim 2 , wherein a third capillary structure is disposed on the inner wall face of the chamber, the first and second capillary structures being connected with the third capillary structure. 
     
     
         17 . The heat pipe structure as claimed in  claim 16 , wherein the third capillary structure is selected from a grouping consisting of a sintered powder body, a mesh body, a fiber body and a structure formed with multiple channels. 
     
     
         18 . The heat pipe structure as claimed in  claim 2 , wherein the first capillary structure has a radial extension volume larger than a radial extension volume of the second capillary structure.