Patent ID: 6705390
Filing Date: 2004-03-16
Classification: F28D,F28F

Abstract:
A cooling apparatus boiling and condensing refrigerant comprising;a refrigerant container which has a heat-generating member attached to a bottom surface thereof and which reserves therein refrigerant which can be boiled by receiving heat from said heat-generating member, a heat radiating portion having a plurality of tubes, which are connected to the inside of the refrigerant container and are provided substantially upright on an upper surface of said refrigerant container, and a header tank by which the plural tubes are communicated; wherein the refrigerant reserved in said refrigerant container can be boiled and evaporated by receiving heat from said heat-generating member and can be used to cool the heat-generating member by radiating latent heat of the refrigerant vapor from said heat radiating portion; and wherein assuming that a portion of the upper surface of the refrigerant container on which a mounting portion of the heat-generating member is projected is referred to as a boiling area, the plurality of tubes being comprised of a first tube group located within said boiling area and a second tube group located out of the boiling area, the adjacent tubes of the first tube group are spaced at a distance smaller than a distance between adjacent tubes of the second tube group.