| 摘要 |
PROBLEM TO BE SOLVED: To provide a power conversion apparatus for a railway vehicle with a cooler capable of efficiently cooling a semiconductor device even in any case of a vehicle traveling or a vehicle stop.SOLUTION: A power conversion apparatus for a railway vehicle includes: a plurality of semiconductor devices constituting a power conversion circuit; a casing packaging the power conversion circuit therein; and a cooler which radiates heat from the semiconductor devices into outside air, and is mounted under the floor of a compartment of the railway vehicle. The cooler includes: a base in which the plurality of semiconductor devices are mounted on one side; and a heat radiating fin which is mounted to another side of the base for radiating heat generated from the plurality of semiconductor devices into the outside air. The heat radiating fin is installed while being exposed in the outside air and ventilation ducts formed from plates are provided in a vehicle traveling direction and a perpendicular direction. |
