PROBLEM TO BE SOLVED: To improve the reliability of a motor of an axial fan installed at a downstream side of a cooler.SOLUTION: An electric power conversion device includes: power semiconductor elements; a heat receiving member in which the power semiconductor elements are provided on one surface; and heat radiation members provided on the other surface of the heat receiving member. The electric power conversion device includes fans for flowing cooling air to areas between the heat radiation members. The fans are disposed at the cooling air downstream side of the heat radiation members. The electric power conversion device includes a duct which guides the cooling air from the heat radiation members to the fans. An opening part which communicates with outer air is provided at a part of the duct.SELECTED DRAWING: Figure 1
【課題】冷却器の下流側に設置した軸流ファンのモータの信頼性を向上する。【解決手段】複数のパワー半導体素子と、複数のパワー半導体素子が一方の面に備えられた受熱部材と、受熱部材の他方の面に備えられた複数の放熱部材と、を備えた電力変換装置において、複数の放熱部材の間に冷却風を流すための複数のファンを備え、複数のファンを放熱部材の冷却風下流側に配置するとともに、放熱部材からファンまで冷却風を導くダクトを備え、ダクトの一部分に外気と通じた開口部を設ける。【選択図】 図1
ELECTRIC POWER CONVERSION DEVICE AND RAILWAY VEHICLE EQUIPPED WITH THE SAME
電力変換装置およびそれを搭載した鉄道車両
2017-04-06
Patent
Electronic Resource
Japanese
IPC: | H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / 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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