ROTARY ELECTRIC MACHINE

• Main Authors: ASAE KOJI, ISHIZUKA ATSURO, MATSUI HIROHITO
• Format: Patent
• Language: English; Japanese
• Published: 08.12.2014
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION

PROBLEM TO BE SOLVED: To provide a rotary electric machine which enables a lower part of a coil end to be sufficiently cooled and thereby improves the cooling performance.SOLUTION: A rotary electric machine 1 of the invention includes: a rotor 30 rotatably provided; a stator 40 including a toric stator core 50 which is disposed facing the outer side of the rotor 30 in a radial direction and a stator coil 60 wound around the stator core 50 and in which coil ends 61, 62 protruding from end surfaces of the stator core 50 to the axial outer side are formed; and a cooling device 70 which supplies a coolant to upper parts of the coil ends 61, 62. The rotary electric machine includes a catch tank 80 which is installed so as to enclose lower parts of the coil ends 61, 62 and tentatively accumulates the coolant reaching the lower parts of the coil ends 61, 62. 【課題】コイルエンドの下部を十分に冷却し得るようにして冷却性能の向上を図ることができる回転電機を提供する。【解決手段】本発明の回転電機１は、回転可能に設けられた回転子３０と、該回転子３０の外側に径方向に対向して配置された円環状の固定子コア５０、及び、該固定子コア５０に巻装されて該固定子コア５０の端面から軸方向外方へ突出するコイルエンド６１，６２が形成された固定子コイル６０を有する固定子４０と、コイルエンド６１，６２の上部に冷却液を供給する冷却装置７０と、を備えている。コイルエンド６１，６２の下部を囲むように設置されて、コイルエンド６１，６２の下部に到達した冷却液を一時的に溜めるキャッチタンク８０を有する。【選択図】図１