FORCED-AIR-COOLED TYPE VEHICULAR CONTROL DEVICE

摘要

There is provided a first accommodating chamber 7 that accommodates a cooling unit frame 25 that supports a cooling unit 2. The cooling unit 2 includes a cooler 22 that cools heat generated from a snubber circuit component 23 and a semiconductor device 21 utilizing cooling air from an air blower 5, a conductor bar 24 that electrically connects the semiconductor device 21 and a capacitor 3 with each other, the snubber circuit component 23, and the semiconductor device 21. There is also provided a second accommodating chamber 8 that accommodates the capacitor 3. The cooling unit 2 and the capacitor 3 can be separated from each other by detaching one of a connecting portion between a laminated bus bar 4 and the conductor bar 24 and a connecting portion between the laminated bus bar 4 and the capacitor 3.