COOLING DEVICE AND POWER CONVERTER PROVIDED WITH SAME

摘要

A cooling device includes: a plurality of side wall fins (12) formed on an outer surface of a first side wall (7e) of a housing (2); a plurality of bottom fins (13) formed on a bottom surface of a bottom portion of the housing; a cover member (9) covering the plurality of side wall fins and the plurality of bottom fins from the outer side to form a side wall cooling channel (27) and a bottom cooling channel (28); a chamber (11) forming a fluid introduction chamber in a direction facing a second side wall (7b) so as to communicate with the side wall cooling channel and the bottom cooling channel; and a coolant supply device (3) externally attached to the chamber so as to supply a coolant to the fluid introduction chamber. The side wall fins and the bottom fins are formed in a predetermined shape, whereby the amount of cooling air flowing from the blower fan to the side wall cooling channel and the bottom cooling channel is adjusted.