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US 2017/0318709 A1Published application
Power conversion device for railway vehicle
AssigneeFuji Electric Co., Ltd.
InventorsMisato SHIBATA, Kimihisa KANEKO, Yoshihisa UEHARA
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Abstract
This power conversion device for a railway vehicle includes a first radiation fin radiating heat from a semiconductor device and a second radiation fin arranged at a prescribed interval from the first radiation fin in a traveling direction for radiating heat from the semiconductor device. At least either one of the first and second radiation fins includes an air duct formed by partially not providing a plurality of fin portions.
Claims19
A power conversion device for a railway vehicle comprising:
- a first radiation fin having a plurality of fin portions provided to extend along a traveling direction of the railway vehicle for radiating heat from the body of the power conversion device loaded on the railway vehicle;
- and
- a second radiation fin, arranged at a prescribed interval from the first radiation fin in the traveling direction, having a plurality of fin portions provided to extend along the traveling direction for radiating heat from the body of the power conversion device, wherein
- at least either one of the first radiation fin and the second radiation fin includes an air duct, extending along the traveling direction, formed by partially not providing the plurality of fin portions,
- for supplying part of air taken from an end portion of either the first radiation fin or the second radiation fin in the traveling direction and circulated through the air duct to be discharged to an end portion of either the second radiation fin or the first radiation fin in the traveling direction at the time of traveling of the railway vehicle.
2 more elements
Dependencies are inferred from the claim text.