Patent ID: 8432695

Claim:
A cooling device for cooling a device mounted on a board, wherein when the side of a surface of the board on which the device to be cooled is mounted is defined as the upper side while the side of the other surface is defined as the lower side in a substantially vertical direction to the board, the cooling device comprises: a heat receiving portion that is arranged on the upper side of the device to be cooled for performing heat exchange with the device to be cooled and has a structure in which a liquid coolant passes through the inside thereof; a columnar portion standing substantially perpendicularly on the board; a base having a through hole which the columnar portion passes through, and arranged on the upper side of the heat receiving portion; biasing means for biasing the base along the columnar portion to thereby press the heat receiving portion against the device to be cooled; a group of circulating system devices forming a closed-loop liquid coolant circulating system together with the heat receiving portion, at least one of the group of circulating system devices being supported to the board by the base and the columnar portion; a fan for generating air flow; and a chassis for supporting the fan above the base such that the air flow is blown down to the board, or sucked up from the board.