Heat dissipating apparatus

Abstract

A heat dissipating apparatus for a battery set or heat-generating electronic device. The heat dissipating apparatus includes a sealing envelope and a heat-guiding unit. The sealing envelope is composed of an upper film, a lower film sealed with the upper film and an accommodation space defined between the upper film and the lower film. The accommodation space is functioned to accommodate the heat-guiding unit and comprises a retaining region and empty regions. The heat-guiding unit includes a wick structure and a working fluid. The heat-guiding unit conveys massive heat by employing a gas-liquid phase transition thereof, whereby the heat-generating electronic device works in a relatively low temperature.

1 . A heat dissipating apparatus comprising 
 a sealing envelope having an upper film, a lower film sealed with the upper film and an accommodation space defined between the upper film and the lower film; and    a heat-guiding unit arranged in the accommodation space and comprising a wick structure and a working fluid.    
   
   
       2 . The heat dissipating apparatus as in  claim 1 , wherein the accommodation space comprises a retaining region and empty regions, the retaining region functioned to accommodate the heat-guiding unit.  
   
   
       3 . The heat dissipating apparatus as in  claim 1 , wherein the accommodation space comprises a retaining region and empty regions, the retaining region functioned to accommodate the heat-guiding unit and the heat-guiding unit extending into the empty regions.  
   
   
       4 . The heat dissipating apparatus as in  claim 1 , wherein the sealing envelope is made of flexible composite material.  
   
   
       5 . The heat dissipating apparatus as in  claim 1 , wherein the sealing envelope is metal sheet.  
   
   
       6 . The heat dissipating apparatus as in  claim 5 , wherein the metal sheet is aluminum sheet.  
   
   
       7 . The heat dissipating apparatus as in  claim 1 , wherein the working fluid is attached to the wick structure.  
   
   
       8 . The heat dissipating apparatus as in  claim 1 , wherein the wick structure is one of unwoven cloth, metal mesh, and sintered metal.  
   
   
       9 . The heat dissipating apparatus as in  claim 1 , wherein the working fluid is one of water, methyl alcohol, acetone, ammonia, coolant and the mixture of above liquids.