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    • 106. 发明专利
    • Fully enclosed type motor with outer fans
    • 全封闭类型电机与外部风扇
    • JP2009261248A
    • 2009-11-05
    • JP2009187513
    • 2009-08-12
    • Toshiba Corp株式会社東芝
    • NAGAYAMA TAKASHIKITAMURA MINORUMATSUURA TADASHISHIRAISHI SHIGETOMO
    • H02K5/20H02K9/12H02K1/32H02K5/18H02K9/06H02K9/08H02K9/16
    • H02K9/18H02K1/32H02K5/20
    • PROBLEM TO BE SOLVED: To provide a completely-sealed external-fan-cooled type motor which suppresses the heat generation of its inside rotor bar, and suppresses heat conduction to its bearing portion, and further, which will not cause reduction in the lifetimes of its bearings and grease, and moreover, is ideal as a driving motor for railway vehicles.
      SOLUTION: A ventilation fan 9 of the completely-sealed external-fan-cooled type motor has a wing 109a, in a radial form on the side of a bracket 2 of the motor or has a wing 109b, in a radial form on the side of the rotor core of the motor. The external air is taken in the ventilating path of the motor from the opening portion which is opened to the bracket 2 so as to become a cooling wind; and the cooling wind is led to the cooling hole, formed in the outer peripheral portion of a stator core 10 of the motor so as to be discharged to the external; and the motor is constituted so that the inside air which is discharged returns again to its inside via an external heat exchanger 23.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种完全密封的外部风扇式电动机,其抑制其内部转子条的发热,并且抑制其轴承部分的热传导,并且这不会导致减小 其轴承和油脂的寿命,此外,作为铁路车辆的驱动电机是理想的。 解决方案:完全密封的外风扇式电动机的通风扇9具有翼片109a,其具有径向形式,位于马达的支架2的侧面上,或具有翼片109b,其具有径向形式 在电机转子芯的一侧。 外部空气从打开到支架2的开口部分在电动机的通风路径中被吸入以成为冷却风; 并且冷却风被引导到形成在电动机的定子铁芯10的外周部分中的冷却孔,以便被排出到外部; 并且电动机被构造成使得排出的内部空气经由外部热交换器23再次返回到其内部。版权所有(C)2010,JPO&INPIT