ELECTRIC POWER CONVERTER AND RAILWAY VEHICLE

• Main Authors: ITO AKIRA, TSUKINARI YUKI, KOTANI KAZUYA, YAMANARI NAOKI, TSUNEOKA OSAMU
• Format: Patent
• Language: English; Japanese
• Published: 23.02.2017
• Subjects: BASIC ELECTRIC ELEMENTS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL; LOCOMOTIVES; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS; MOTOR RAILCARS; PERFORMING OPERATIONS; PRINTED CIRCUITS; RAILWAYS; SEMICONDUCTOR DEVICES; TRANSPORTING; VEHICLES IN GENERAL

PROBLEM TO BE SOLVED: To provide an electric power converter and a railway vehicle capable of effectively supplying traveling air to an air receiving part and ensuring a desired cooling performance.SOLUTION: An electric power converter according to an embodiment comprises: a semiconductor device; an air receiving part; an air guiding guide; and a flange part. The semiconductor device can output electric power driving a vehicle. The air receiving part is connected to the semiconductor device. Provided that an assumed vehicle travel direction is a first direction and a direction orthogonal to the first direction is a second direction, the air guiding guide is disposed to face the air receiving part in the second direction, and out of two end portions in the first direction, the end portion close to a central portion of the air receiving part is defined as a first end portion while the opposite end portion to the first end portion is defined as a second end portion. The flange part extends from the second end portion of the air guiding guide to an opposite side to an air receiving part side. A distance between the second end portion of the air guiding guide and the air receiving part in the second direction is equal to or larger than a distance between the first end portion of the air guiding guide and the air receiving part in the second direction.SELECTED DRAWING: Figure 3 【課題】受風部に対して走行風を効果的に供給し、所望の冷却性能を確保できる電力変換装置及び鉄道車両を提供することである。【解決手段】実施形態の電力変換装置は、半導体素子と、受風部と、導風ガイドと、鍔部と、を持つ。半導体素子は、車両を駆動する電力を出力可能である。受風部は、半導体素子に接続される。導風ガイドは、車両の走行想定方向を第１方向とし、第１方向に直交する方向を第２方向としたとき、受風部に対して第２方向で対向配置されるとともに、第１方向の両端部のうち、受風部の中央部寄りの端部を第１端部とし、第１端部とは反対側の端部を第２端部とする。鍔部は、導風ガイドの第２端部から受風部側とは反対側に向けて延びる。導風ガイドの第２端部と受風部との間の第２方向における距離が、導風ガイドの第１端部と受風部との間の第２方向における距離以上になっている。【選択図】図３