Ebullient cooling device

Abstract

To provide an ebullient cooling device that can prevent the freezing of liquid cooling medium, and which can inhibit the occurrence of burnout. An ebullient cooling device according to the present invention is characterized in that: it comprises an accommodating unit in which a liquid cooling medium is accommodated, the liquid cooling medium receiving heat that results from a heating element; the liquid cooling medium is a mixed liquid comprising at least two types of liquids whose boiling points differ; the accommodating unit has: a heat-transferring wall portion that conveys the heat of the heating element to the liquid cooling medium; and a facing wall portion that faces the heat-transferring wall portion by way of the liquid cooling medium; and a separation distance between the heat-transferring wall portion and the facing wall portion is 3 mm or less.

1 . An ebullient cooling device being characterized in that:
 it comprises
 an accommodating unit in which a liquid cooling medium is accommodated, the liquid cooling medium receiving heat that results from a heating element; 
   said liquid cooling medium is a mixed liquid comprising at least two types of liquids whose boiling points differ;   said accommodating unit has:
 a heat-transferring wall portion that conveys the heat of said heating element to said liquid cooling medium; and 
 a facing wall portion that faces said heat-transferring wall portion by way of said liquid cooling medium; and 
   a separation distance between said heat-transferring wall portion and said facing wall portion is 3 mm or less.   
     
     
         2 . The ebullient cooling device as set forth in  claim 1 , wherein the separation distance between said heat-transferring wall portion and said facing wall portion is 2 mm or less. 
     
     
         3 . The ebullient cooling device as set forth in  claim 2 , wherein the separation distance between said heat-transferring wall portion and said facing wall portion is from 0.5 mm or more to 1.5 mm or less. 
     
     
         4 . The ebullient cooling device as set forth in  claim 1 , wherein said illiquid cooling medium is a mixed liquid of water and ethanol. 
     
     
         5 . The ebullient cooling device as set forth in  claim 4 , wherein said mixed liquid has an ethanol concentration of from 45% by mass or more to 55% by mass or less.