Heat pipe structure

Abstract

The heat pipe structure includes a pipe body, hollow groove and capillary tissue. The pipe body contains a heat-conducting end and a radiating end. The capillary tissue of a predefined thickness is adapted to an inner wall of the pipe body. The inner surface of capillary tissue is located correspondingly to the section of the heat-conducting end, where a portion with greater thickness is shaped from another section of the capillary tissue. The portion is of single side, a plurality of sides or annular structure. Thus, the heat conduction efficiency of the heat-conducting end greatly improves. The non heat-conducting sections of the capillary tissue remain still with respect to thickness, and the guide space expands to facilitate guiding of gaseous working fluid to the radiating end, thus achieving an optimum heat radiation effect.

1 . A heat pipe structure, comprising:
 a pipe body, having a heat-conducting end, a radiating end, an inner wall, and a hollow groove; and   capillary tissue of a predefined thickness, adapted to said inner wall of said pipe body, said capillary tissue having an inner surface opposite said pipe body and a portion, with greater thickness than capillary tissue in other sections of said pipe and being located correspondingly to said heat-conducting end of said pipe body.   
   
   
       2 . The structure defined in  claim 1 , wherein said portion with greater thickness is arranged onto one side of said inner surface of said capillary tissue. 
   
   
       3 . The structure defined in  claim 1 , wherein said portion with greater thickness is arranged onto a plurality of sides of said inner surface of said capillary tissue or in an annular manner. 
   
   
       4 . The structure defined in  claim 1 , wherein said hollow groove of said pipe body has a mould core inserted therein, forming said portion with greater thickness by moulding, said mould core being inserted by an eccentric side thereof. 
   
   
       5 . The structure defined in  claim 1 , wherein said capillary tissue is arranged annularly onto said inner wall of the pipe body, or only adapted transversely to said inner wall of said pipe body.