Thin heat pipe structure

Abstract

A thin heat pipe structure includes a main body having a chamber. The chamber has a wick structure and a working fluid provided therein, and internally defines an evaporating section and at least one condensing section. The condensing section is extended towards at least one or two ends of the evaporating section. The wick structure is provided with at least one groove. The groove is extended through the wick structure along a thickness direction of the main body to connect to two opposite wall surfaces of the chamber, and also extended along a length direction of the main body to communicate with the condensing section and the evaporating section. With these arrangements, the thin heat pipe structure has an extremely small overall thickness and is flexible.

What is claimed is: 
     
         1 . A thin heat pipe structure comprising:
 a main body including a chamber; the chamber having a wick structure and a working fluid provided therein and internally defining an evaporating section and at least one condensing section; the condensing section being extended towards at least one or two ends of the evaporating section; the wick structure being provided with at least one groove; and the groove being extended through the wick structure along a thickness direction of the main body to connect to two opposite wall surfaces of the chamber, and also extended along a length direction of the main body to communicate with the condensing section and the evaporating section.   
     
     
         2 . The thin heat pipe structure as claimed in  claim 1 , wherein there are two condensing sections extended from two ends of the evaporating section; and the groove being extended through the wick structure only in the condensing sections along the thickness direction of the main body. 
     
     
         3 . The thin heat pipe structure as claimed in  claim 2 , wherein the groove has a width gradually increased from the evaporating section towards the condensing sections, meaning that the groove in the evaporating section has a width smaller than that of the groove in the condensing sections. 
     
     
         4 . The thin heat pipe structure as claimed in  claim 1 , wherein there are two condensing sections extended from two ends of the evaporating section; the groove being extended along the length direction of the main body, and the groove also being extended through the wick structure in the condensing sections and the evaporating section along the thickness direction of the main body to connect to the two opposite wall surfaces of the chamber. 
     
     
         5 . The thin heat pipe structure as claimed in  claim 4 , wherein the groove has a width gradually increased from the evaporating section towards the condensing sections, meaning that the groove in the evaporating section has a width smaller than that of the groove in the condensing sections. 
     
     
         6 . The thin heat pipe structure as claimed in  claim 1 , wherein the wick structure is selected from the group consisting of meshes, fibers, and woven threads. 
     
     
         7 . The thin heat pipe structure as claimed in  claim 1 , wherein the main body further includes a first plate member and a second plate member; the first and the second plate member being closed to each other to sandwich the wick structure therebetween; the first and the second plate member respectively having a thickness ranged from 0.01 to 0.1 mm; and the wick structure having a thickness ranged from 0.05 to 0.2 mm.