Heat-wing

Abstract

A heat-wing includes: a sealed hollow chamber including two plates and a frame connecting the two plates; a capillary structure layer closely attached to an inner surface of the chamber; and a phase transition working medium sealed in the chamber. A portion of the frame or a portion of a periphery of one of the two plates serves as an evaporation area of the heat-wing, and the rest portion of the chamber serves as a condensation area of the heat-wing. The heat-wing has an increased vapor passage area, liquid working medium flow-back passage width and condenser heat transfer area and a reduced evaporator center-to-edge distance, and is hence capable of achieving a great improvement in heat transfer limit and heat flux density.

What is claimed is: 
     
         1 . A heat-wing, comprising:
 a sealed hollow chamber, including two plates and a frame connecting the two plates;   a capillary structure layer closely attached to an inner surface of the chamber; and   a phase transition working medium sealed in the chamber,   wherein a portion of the frame or a portion of a periphery of one of the two plates as an evaporation area is in direct contact with a heat source, and the rest portion of the chamber as a condensation area is not in contact with the heat source;   wherein each of a length and a width of the chamber is much greater than a thickness of the chamber.   
     
     
         2 . The heat-wing of  claim 1 , wherein the two plates are parallel or substantially parallel to each other. 
     
     
         3 . The heat-wing of  claim 1 , further comprising a support or connection structure disposed between the two plates. 
     
     
         4 . The heat-wing of  claim 3 , wherein the support or connection structure assumes a shape of a dot, a line or a sheet. 
     
     
         5 . The heat-wing of  claim 1 , wherein a portion of the frame as an evaporation area is in direct contact with the heat source, and the rest portion of the chamber extends away from the heat source. 
     
     
         6 . The heat-wing of  claim 1 , wherein a portion of the periphery of one of the two plates as an evaporation area is in direct contact with the heat source, and the rest portion of the chamber extends away from the heat source. 
     
     
         7 . The heat-wing of  claim 1 , wherein the two plates are flat or curved. 
     
     
         8 . The heat-wing of  claim 1 , wherein the chamber is fabricated from a material selected from a group consisting of copper, aluminum, stainless steel metal and alloys thereof, high thermal conductivity ceramics, and other high thermal conductivity materials. 
     
     
         9 . The heat-wing of  claim 1 , wherein the capillary structure layer is made of sintered powder(s), wire lattices, grooves, fibers, coated or grown carbon nanowalls, carbon nanotubes or carbon nanocapsules, other coated or grown nano-order or micro-order thin organic or inorganic layer(s) or any combination of the above. 
     
     
         10 . The heat-wing of  claim 1 , wherein the capillary structure layer is a single-layer structure or a multi-layer structure, or any other suitable structure providing capillary attraction. 
     
     
         11 . The heat-wing of  claim 1 , wherein the phase transition working medium is selected from a group consisting of water and other liquids, low melting point metals, carbon nanocapsules, other nanoparticles, mixtures of the above materials, and other materials having gas-liquid phase transition at a temperature within the operating temperature range of the heat-wing. 
     
     
         12 . The heat-wing of  claim 1 , wherein each of the two plates assume a rectangular shape or any other shape. 
     
     
         13 . The heat-wing of  claim 1 , wherein the chamber has a cross-sectional area of a section near to the evaporation area that is larger than, equal to or smaller than a cross-sectional area of an upper section of the chamber. 
     
     
         14 . The heat-wing of  claim 1 , wherein the heat-wing can be evacuated to a certain degree of vacuum. 
     
     
         15 . The heat-wing of  claim 1 , further comprising one or more fins. 
     
     
         16 . The heat-wing of  claim 15 , wherein the chamber and/or the one or more fins is coated with a black-body radiator material. 
     
     
         17 . The heat-wing of  claim 1 , further comprising a hose for vacuuming and liquid filling.