Patent ID: 7823671

Claim:
A cooling structure for a device mounted to a vehicle, the cooling structure comprising: a plurality of heat generating members, each of the plurality of heat generating members having a plate shape, wherein the heat generating members are arranged in a plate-thickness direction to have predetermined spaces between adjacent heat generating members for forming fluid passages, each fluid passage being disposed between the adjacent heat generating members; the fluid passages pass a fluid for cooling the heat generating members; the plurality of heat generating members include a plurality of first members and a plurality of second members, the plurality of second members having a control temperature higher than a control temperature of the plurality of first members; the fluid passages include a plurality of first passages disposed between adjacent first members and a plurality of second passages disposed between adjacent second members; a total number of the plurality of second passages is smaller than a total number of the plurality of first passages; all fluid having passed through the plurality of first passages flows through the plurality of second passages; and a total passage sectional area of the plurality of second passages between the adjacent second members is smaller than a total passage sectional area of the plurality of first passages between the adjacent first members.