Patent ID: 6341645
Filing Date: 2002-01-29
Classification: F25B,F28D,H01L

Abstract:
A cooling device for boiling and condensing refrigerant for cooling a heat-generating member, said cooling device comprising;a refrigerant tank for containing liquid refrigerant, said refrigerant tank having first and second wall surfaces disposed approximately vertically to be opposite to each other, and a boiling space between said first and second wall surfaces, in which a part of liquid refrigerant is boiled and vaporized to gas refrigerant by absorbing heat from the heat-generating member attached onto said first wall surface; a radiator having a first header into which gas refrigerant from said boiling space flows, a plurality of tubes in which gas refrigerant from said first header is cooled and condensed by performing heat exchange with outside fluid passing through said radiator, and a second header through which liquid refrigerant condensed in said tubes returns to said refrigerant tank, wherein: said second wall surface of the refrigerant tank has a first connection portion communicating with said boiling space at a gas refrigerant outlet, and a second connection portion through which said second header communicates with said boiling space; said first header is disposed to extend in a tank longitudinal direction approximately horizontally, and is connected to said first connection portion to be approximately perpendicular to said second wall surface; said second header is connected to said second connection portion to be approximately perpendicular to said second wall surface; said first header has an inserted end portion being inserted into said refrigerant tank from said first connection portion to form a communication port through which an inner space of said first header communicates with said boiling space; said first header has a plurality of tube insertion holes arranged in the tank longitudinal direction, into which said tubes are inserted to protrude inside said first header; and said communication port has a lower end at a position lower than the lower end of said tubes inserted into said first header.