Flat heat pipe

Abstract

A flat heat pipe includes a casing, a wick structure received in the casing, and a working medium contained in the casing and saturated in the wick structure. The casing has an upper plate and a bottom plate opposite to the upper plate. The wick structure is attached only to the bottom plate of the casing. The wick structure spaces from the upper plate with a vapor channel defined between the upper plate and the wick structure.

1 . A flat heat pipe comprising:
 a casing having an upper plate and a bottom plate opposite to the upper plate;   a wick structure received in the casing and attached only to the bottom plate of the casing, the wick structure spacing from the upper plate with a vapor channel defined between the upper plate and the wick structure; and   a working medium contained in the casing and saturated in the wick structure.   
     
     
         2 . The flat heat pipe as claimed in  claim 1 , wherein the wick structure is a single-layered mesh structure formed by weaving a plurality of wires. 
     
     
         3 . The flat heat pipe as claimed in  claim 1 , wherein a height of the casing is below 1.2 millimeters. 
     
     
         4 . A flat heat pipe comprising:
 a metal casing having a flat upper plate and a flat lower plate and defining an evaporator section for absorbing heat and a condenser section for releasing heat, wherein the evaporator section and the condenser section are located at opposite end portions of the metal casing, a transverse section of the metal casing having an outer surface and an inner surface;   a wick structure made of a mesh attached to a partial portion of the inner surface of the transverse section of the metal casing and extending from the evaporator section to the condenser section; and   working fluid received in the casing and saturated in the wick structure.   
     
     
         5 . The heat pipe as claimed in  claim 4 , wherein the wick structure has a flat configuration and attached to a bottom of the inner surface of the transverse section the casing. 
     
     
         6 . The heat pipe as claimed in  claim 5 , wherein the casing has a height no more than 1.2 millimeters.