Patent ID: 7701710

Claim:
A cooling structure for a rackmount-type control device, comprising: an enclosure having a front side and rear side which are each open; a connection substrate that is provided at the center of the enclosure to divide the interior of the enclosure in a front-rear direction; a control substrate group which comprises a plurality of control substrates for executing storage device-related control and which is provided at the front and rear of the enclosure respectively; a power-related device that is provided on both the left and right sides of the respective control substrate groups; a first cooling passage that cools the respective control substrate groups by means of a first cooling air stream, the first cooling passage comprises a first lower passage; a second cooling passage that cools the respective power-related devices located on one side of the respective control substrate groups among the respective power-related devices by means of a second cooling air stream, the second cooling passage comprises a second lower passage; and a third cooling passage that cools the respective power-related devices located on the other side of the respective control substrate groups among the respective power-related devices by means of a third cooling air stream, the third cooling passage comprises a third lower passage, wherein the upstream sides of the first, second, and third cooling passages are provided independent of one another and the downstream sides of the first, second, and third cooling passages are common; wherein a cable passage for connecting cables to the respective control substrates constituting the front control substrate group is provided between the bottom of the first lower passage and the inner surface of the enclosure; and the second lower passage and the third lower passage are provided between the bottom of the respective power-related device and the inner surface of the enclosure and at the same height as the cable passage.