PROBLEM TO BE SOLVED: To provide a power converter for a vehicle which can be reduced in size and weight and in which a heat dissipation fan is prevented from being damaged.SOLUTION: A power converter includes: a device main body 14 having a bottom face 18; a plurality of semiconductor switching elements 26 which are disposed in the device main body and which constitute a power converting circuit; a cooler 28 which extends from the bottom face of the device main body downward, includes a heat dissipation part having heat dissipation fins 34 cooled by traveling air of a rail car, and cools the semiconductor switching elements; and a plurality of support legs 60 which extend from the bottom face of the device main body further downward than the heat dissipation fins and which can support the device main body. The plurality of support legs is disposed at positions deviated from an inflow path for the traveling air to the heat dissipation fins.SELECTED DRAWING: Figure 3
【課題】小型、軽量化が可能であるとともに放熱ファンの損傷を防止することが可能な車両用の電力変換装置を提供する。【解決手段】実施形態によれば、電力変換装置は、底面18を有する装置本体14と、装置本体内に配置され電力変換回路を構成する複数の半導体スイッチング素子26と、装置本体の底面から下向きに延出し、鉄道車両の走行風によって冷却される放熱フィン34を有する放熱部を含み、半導体スイッチング素子を冷却する冷却器28と、装置本体の底面から放熱フィンよりも下方に延出し、装置本体を支持可能な複数の支持脚60と、を備えている。複数の支持脚は、放熱フィンへの走行風の流入路から外れた位置に配置されている。【選択図】図3
POWER CONVERTER FOR VEHICLE
車両用電力変換装置
2016-09-15
Patent
Electronic Resource
Japanese
IPC: | B61C Lokomotiven , LOCOMOTIVES / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES / H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / H05K PRINTED CIRCUITS , Gedruckte Schaltungen |
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