EBULLIENT COOLING DEVICE

摘要

Disclosed is a ebullient cooling device capable of improving heat exchange efficiency, and which allows the division of the liquid and gas components of a refrigerant in the condensing unit (30). The disclosed ebullient cooling device is provided with a housing unit housing a liquid refrigerant, and a condensing unit which forms an inner space, one end of which communicates with a communicating chamber, and the other end of which is sealed, and in which the bottom end of the communicating chamber side of the inner space is lower than the bottom end of the sealed side thereof. In the inner space of the condensing unit, multiple fins extending from one to the other lateral surface in the condensing unit are arranged in a row from the communicating chamber side toward the sealed side, and, at least for those of the multiple fins nearest the communicating chamber, the distance (a) between the top of the fins and the top surface in the condensing unit is greater than the distance (b) between the bottom of the fins and the bottom surface in the condensing unit, and the cross-section area of the passage above the fins on the side nearest the communicating chamber is greater than cross-section area of the passage below the fins on the side nearest the communicating chamber.