Patent ID: 7675748

Claim:
The disk array system comprising: a plurality of disk drives; and at least one unit box including the plurality of disk drives aligned in the thickness direction of the disk drive, the plurality of disk drives comprising: a thin case accommodating a recording disk, a read/write head, and a driving mechanism for driving the recording disk and the read/write head; and a control board for controlling the driving mechanism, the control board being mounted on the thin case, wherein the thin case and the unit box are comprised of a thermally-conductive material, the unit box has surfaces parallel to the thickness direction of the plurality of disk drives, and at least one of the surfaces of the unit box includes a heat absorption unit filled with a refrigerant, wherein the disk drive is accommodated in a box-shaped housing comprised of a thermally-conductive material, the housing is removably disposed in the unit box, and a heat-transfer accelerating unit is disposed between inner surfaces of the unit box and side surfaces of the housing facing the inner surfaces of the unit box so as to fill the gap between the inner surfaces of the unit box and the side surfaces of the housing, the heat-transfer accelerating unit accelerating thermal coupling of the unit box and the housing, wherein side surfaces of the thin case are fixed to inner surfaces of the housing via a thermally-conductive component, the control board is mounted on a first outer surface of the thin case, and a second outer surface of the thin case is attached to an inner bottom surface of the housing through a thermally-conductive flexible component.