Heat transfer device with functions of power generation

Abstract

Provided is a heat transfer device which has a function of generating power through vibration of capillary grooves having a thin piezoelectric film deposited thereon, in addition to a heat transfer function of discharging heat transferred from a heating element to the outside.

1 . A heat transfer device comprising:
 a vaporization unit including multi-channel capillary grooves which vaporize a working fluid through heat transferred from an external heating element so as to generate vapor; and   a condensation unit that condenses the vapor of the working fluid vaporized by the vaporization unit and then returns the condensed liquid to the vaporization unit,   wherein the multi-channel capillary grooves have a piezoelectric thin film deposited thereon, and vibrate due to the vapor of the vaporized working fluid such that power is generated from the multi-channel capillary grooves.   
     
     
         2 . The heat transfer device according to  claim 1 , wherein as the vapor of the vaporized working fluid slides and flows among the multi-channel capillary grooves, the multi-channel capillary grooves having the piezoelectric thin film deposited thereon vibrate in a side-to-side or front and back direction. 
     
     
         3 . The heat transfer device according to  claim 1 , wherein lower portions of the multi-channel capillary grooves are connected to a wall surface of the vaporization unit, and upper portions of the multi-channel capillary grooves are formed in a cantilever shape such that the ends thereof can freely move. 
     
     
         4 . The heat transfer device according to  claim 1 , wherein the working fluid is saturated and uniformly distributed among the multi-channel capillary grooves due to the capillary action of the multi-channel capillary grooves. 
     
     
         5 . The heat transfer device according to  claim 1 , wherein the heat transferred from the heating element by a phase change caused by the vaporization and condensation of the working fluid is discharged through the condensation unit to the outside. 
     
     
         6 . The heat transfer device according to  claim 1  further comprising:
 a post-shaped bridge that is formed between the vaporization unit and the condensation unit so as to prevent compression. 
 
     
     
         7 . The heat transfer device according to  claim 6 , wherein the bridge is used as a liquid flow path through which the condensed liquid returns to the vaporization unit.