Wick structure of heat pipe

Abstract

A wick structure of a heat pipe includes a wick structure attached to an internal wall of a tubular member. The tubular member is fabricated from metal material with good conductive characteristics, and the wick member is formed of a mesh structure and a plurality of particulate members. The mesh structure is in the form of a ring attached to an internal wall of the tubular member, and the particulate members are embedded in the interstices of the mesh structure. The wick structure is attached to the internal wall of the tubular member by sintering, such that a wick structure with a villiform structure is formed. Thereby, the peeling or fracture tendency of the wick structure during the mechanical process of the heat pipe avoided. In addition, the axial rod used for the sintering process is not required, such that the cost is greatly reduced.

1 . A wick structure to be attached to an internal wall of a tubular member, comprising a mesh in the form of an elongate circular ring and a plurality of particulates embedded in interstices of the mesh, wherein the mesh and the particulates embedded therein are attached to the internal wall of the tubular member by a sintering process.  
   
   
       2 . The structure of  claim 1 , wherein the tubular member is fabricated from a good thermal conductive metal material.  
   
   
       3 . The structure of  claim 1 , wherein the mesh includes a woven mesh.  
   
   
       4 . The structure of  claim 1 , wherein the tubular member includes an open end and a close end, and the mesh extends towards an internal bottom surface of the close end.  
   
   
       5 . The structure of  claim 1 , wherein the tubular member has a fusion point higher than that of the wick structure.  
   
   
       6 . The structure of  claim 5 , wherein the mesh is fabricated from a thin layer with a plurality of porosities.  
   
   
       7 . The structure of  claim 6 , wherein the thin layer includes a plurality of recesses and protrusions.  
   
   
       8 . The structure of  claim 1 , wherein the particulates have a fusion point lower than that of the mesh.  
   
   
       9 . The structure of  claim 1 , wherein the particulates include metal powders.  
   
   
       10 . The structure of  claim 1 , wherein the particulates include a plurality of fine broken fibers.  
   
   
       11 . The structure of  claim 1 , further comprising a support member disposed in the tubular member to press the wick structure against the internal wall of the tubular member.  
   
   
       12 . The structure of  claim 10 , wherein the support member has a fusion point higher than those of the mesh and the particulates.  
   
   
       13 . The structure of  claim 10 , wherein the support member includes a plate spiral structure.  
   
   
       14 . The structure of  claim 10 , wherein the support member includes a linear spiral structure.  
   
   
       15 . The structure of  claim 10 , wherein the support member includes a porous plate curled as a roll.  
   
   
       16 . The structure of  claim 10 , wherein the support member is fabricated from a resilient material.