Flat type heat pipe and method of manufacturing the same

Abstract

A method of manufacturing a flat type heat pipe, having an inside of which partitioned into a plurality of cells, that is capable of flexibly setting a concentration of working fluid in each cell is provided. The method includes processes of preparing a flat container, pouring, and closing. In the preparing, the flat container having the inside of which two-dimensionally partitioned into the plurality of cells is prepared. The flat container has connecting holes through which adjacent cells communicate and an inlet hole for the working fluid to be poured from outside. In the pouring, the working fluid is poured into respective cells through the inlet hole and the connecting holes. In the closing, the inlet hole and the connecting holes are closed. In one method, after sealing a specified cell, following processes of heating, removing air, pouring, evaporating, and closing are repeated for other cells.

1 . A method for manufacturing a flat type heat pipe, the method comprising:
 preparing a flat container having an inside of which two-dimensionally partitioned into a plurality of cells, the flat container having connecting holes that communicate adjacent cells to each other and an inlet hole for a working fluid to be poured from outside;   pouring the working fluid in the respective cells through the inlet hole and the connecting holes; and   closing the inlet hole and the connecting holes.   
     
     
         2 . The method of  claim 1 , wherein following processes are repeated in the pouring and the closing:
 removing air from a non-sealed cell;   pouring the working fluid into the non-sealed cell;   evaporating the poured working fluid; and   sealing a specified cell after a concentration of the working fluid in the specified cell reaches a predetermined concentration.   
     
     
         3 . The method of  claim 1 , wherein:
 the pouring includes evaporating the working fluid in the cells after heating the respective cells to different temperatures; and   the closing includes closing the connecting holes after closing the inlet hole and changing concentrations of the working fluid in the respective cells in accordance with a temperature gradient of the cells.   
     
     
         4 . The method of  claim 1 , further comprising reducing a volume of at least one of the cells by applying pressure to the at least one of the cells after closing the inlet hole and the connecting holes. 
     
     
         5 . A flat type heat pipe manufactured by the method of  claim 1 . 
     
     
         6 . A flat type heat pipe in which a plurality of cells with different concentrations of a working fluid is two-dimensionally arranged.