Low-profile composite heat pipe

Abstract

A low-profile composite heat pipe includes a flat plate-like first pipe component shaped like a flat plat member and having flow-guide grooves located at the inner surface between two opposite ends thereof and a wick structure sintered on the surface of the flow-guide grooves, a flat plate-like second pipe component having flow-guide grooves located at the inner surface between two opposite ends thereof and a wick structure sintered on the surface of the flow-guide grooves, an enclosed cavity defined in between the first pipe component and the second pipe component and surrounded by the wick structures of the first and second pipe components, and a working fluid contained in the enclosed cavity.

What the invention claimed is: 
     
         1 . A low-profile composite heat pipe, comprising:
 a first pipe component shaped like a flat plat member, said first pipe component comprising a plurality of flow-guide grooves located at an inner surface between two opposite ends thereof;   a second pipe component shaped like a flat plate member and covered on and bonded to said first pipe component;   an enclosed cavity defined in between said first pipe component and said second pipe component in communication with the flow-guide grooves of said first pipe component.   
     
     
         2 . The low-profile composite heat pipe as claimed in  claim 1 , wherein said flow-guide grooves are made using one of extrusion and roller ramming techniques. 
     
     
         3 . The low-profile composite heat pipe as claimed in  claim 1 , wherein said flow-guide grooves are arranged in parallel. 
     
     
         4 . The low-profile composite heat pipe as claimed in  claim 1 , wherein said flow-guide grooves are intersected with one another. 
     
     
         5 . The low-profile composite heat pipe as claimed in  claim 1 , wherein said first pipe component further comprises a wick structure located at said flow-guide grooves. 
     
     
         6 . The low-profile composite heat pipe as claimed in  claim 1 , wherein said second pipe component further comprises a plurality of flow-guide grooves located between two opposite ends thereof in communication with said cavity, and a wick structured sintered on surfaces of said flow-guide grooves. 
     
     
         7 . The low-profile composite heat pipe as claimed in  claim 1 , wherein said first pipe component comprises at least one first curved potion disposed between two opposite ends thereof; said second pipe component comprises at least one second curved portion disposed between two opposite ends thereof corresponding to said at least one first curved portion of said first pipe component. 
     
     
         8 . The low-profile composite heat pipe as claimed in  claim 1 , wherein said first pipe component comprises a base wall, and an endless upright wall perpendicularly extended around the border of said base wall; said second pipe component is bonded to said endless upright wall of said first pipe component. 
     
     
         9 . The low-profile composite heat pipe as claimed in  claim 1 , wherein said first pipe component comprises a base wall, an endless upright wall perpendicularly extended around the border of said base wall, and an inner locating groove located on an inner surface of said endless upright wall at a top side; said second pipe component is press-fitted into said inner locating groove of said endless upright all of said first pipe component in a flush manner. 
     
     
         10 . The low-profile composite heat pipe as claimed in  claim 1 , wherein said first pipe component comprises a base wall, an endless upright wall perpendicularly extended around the border of the base wall thereof, and an outer locating groove located on an outer surface of said endless upright wall at a top side; said second pipe component comprises a base wall and an endless flange perpendicularly downwardly extended around the border of the base wall thereof and press-fitted into said outer locating groove of said endless upright wall of said first pipe component.