Flat-plate heat pipe structure

Abstract

A flat-plate heat pipe structure includes a main body. The main body has a first board body, a second board body, a first capillary structure and a working fluid. The first and second board bodies are overlapped and mated with each other. The first capillary structure is disposed between the first and second board bodies. The first capillary structure and the first and second board bodies together define at least one vapor passage. Accordingly, when the flat-plate heat pipe is thinned, the flat-plate heat pipe still keeps having a vapor passage, whereby the vapor-liquid circulation efficiency of the flat-plate heat pipe will not be deteriorated due to thinning.

What is claimed is: 
     
         1 . A flat-plate heat pipe structure comprising a main body, the main body having a first board body, a second board body, a first capillary structure and a working fluid, the first and second board bodies being overlapped and mated with each other, the first capillary structure being disposed between the first and second board bodies, the first capillary structure and the first and second board bodies together defining at least one vapor passage. 
     
     
         2 . The flat-plate heat pipe structure as claimed in  claim 1 , wherein the first capillary structure is selected from a group consisting of mesh body, fiber body, linear braided body and sintered powder body. 
     
     
         3 . The flat-plate heat pipe structure as claimed in  claim 1 , wherein the main body further has a second capillary structure, the second capillary structure being multiple channels or braided mesh. 
     
     
         4 . The flat-plate heat pipe structure as claimed in  claim 3 , wherein the channels transversely and longitudinally intersect each other. 
     
     
         5 . The flat-plate heat pipe structure as claimed in  claim 3 , wherein the main body further has a heat absorption section and a heat dissipation section, the second capillary structure being disposed in the heat absorption section. 
     
     
         6 . The flat-plate heat pipe structure as claimed in  claim 1 , wherein the first capillary structure is disposed at a center of the main body and extends in an axial direction of the main body, the vapor passage being disposed on two sides of the first capillary structure. 
     
     
         7 . The flat-plate heat pipe structure as claimed in  claim 1 , wherein the main body has a pair of first capillary structures and the vapor passage is formed between the two first capillary structures. 
     
     
         8 . The flat-plate heat pipe structure as claimed in  claim 1 , wherein the thickness of the first and second board bodies ranges from 0.01 mm to 0.15 mm. 
     
     
         9 . The flat-plate heat pipe structure as claimed in  claim 1 , wherein the main body further has a heat absorption section, a heat dissipation section and a turning section, the heat absorption section and the heat dissipation section being connected with the turning section, the first capillary structure disposed in the heat absorption section and the heat dissipation section being a sintered powder body.