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    • 10. 发明授权
    • Rotating electric machine
    • 旋转电机
    • US07919890B2
    • 2011-04-05
    • US11793401
    • 2006-01-10
    • Yasuji Taketsuna
    • Yasuji Taketsuna
    • H02K9/19H02K3/24
    • H02K3/24H02K9/19
    • A rotating electric machine, comprising a stator, a rotor, a case storing the stator and the rotor, and an oil pump. Oil discharge ports are formed at the terminal part of an oil discharge passage of the case, and a cooling oil is supplied to the upper cutout parts of the stator. A groove part is covered by a cover to form a closed flow passage. Since the cooling oil is sufficiently applied to the portion of a coil exposed to the inside of the flow passage, a cooling efficiency is increased. Also the cooling oil is guided to an orifice on the lower side in the gravitational direction. Accordingly, since the cooling oil does not flow in an air gap between the rotor and the stator, a power loss can be prevented from occurring.
    • 一种旋转电机,包括定子,转子,存储定子和转子的壳体以及油泵。 排油口形成在壳体的排油通路的端部,向定子的上切口部供给冷却油。 凹槽部分被盖覆盖以形成封闭的流动通道。 由于冷却油充分地施加到暴露于流路内部的线圈部分,因此冷却效率提高。 此外,冷却油也被引导到重力方向下侧的孔口。 因此,由于冷却油不会在转子和定子之间的气隙中流动,所以可以防止发生功率损失。