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    • 9. 发明专利
    • Rotating electric machine
    • 旋转电机
    • JP2009284756A
    • 2009-12-03
    • JP2009101527
    • 2009-04-20
    • Hitachi Ltd株式会社日立製作所
    • NAKAHARA AKIHITOMIKAMI HIROYUKIIDE KAZUMASATAKAHASHI KAZUHIKOHATTORI KENICHI
    • H02K1/02H02K1/18H02K1/32
    • H02K1/20H02K1/02H02K1/16
    • PROBLEM TO BE SOLVED: To provide a rotating electric machine improved in temperature distribution in the vicinity of its stator winding, and then improved in reliability.
      SOLUTION: The rotating electric machine includes: a rotor formed by winding a field winding around a rotor core; and a stator formed by facing the rotor with a predetermined gap between the rotor and it, and further winding stator windings around a stator core. The stator core is constituted so as to punch a divided piece, which includes teeth portions for inserting the stator windings thereinto and a core back of its outer periphery, from an electromagnetic steel sheet, and so as to laminate a plurality of divided pieces arranged circularly in the peripheral direction of the stator core in the axial direction of the stator core. Electromagnetic steel sheets whose radial-direction magnetic permeabilities differ from each other in their central portions and axial-direction end portions are laminated in the stator core.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种改进其定子绕组附近的温度分布的旋转电机,然后提高可靠性。 解决方案:旋转电机包括:通过围绕转子芯缠绕励磁绕组而形成的转子; 以及在转子与其之间以预定的间隙面向转子形成的定子,并且进一步绕定子芯绕定子绕组。 定子铁芯构成为将来自电磁钢板的分割片(包括用于将定子绕组插入其内部的齿部和其外周的芯背)的分割片冲压成圆形排列的多个分割片 在定子铁芯的轴向方向上沿定子铁心的圆周方向。 在定子铁心中层叠有在其中心部和轴向端部的径向磁导率彼此不同的电磁钢板。 版权所有(C)2010,JPO&INPIT
    • 10. 发明专利
    • Rotatary electric machine
    • 旋转电机
    • JP2009060763A
    • 2009-03-19
    • JP2007228063
    • 2007-09-03
    • Hitachi Ltd株式会社日立製作所
    • KARASHI SHIGEKIIWASHIGE KENGOIWANO RYUICHIROSAEKI MITSURUHATTORI KENICHITAKAHASHI KAZUHIKO
    • H02K1/32H02K3/24H02K9/06H02K9/08
    • H02K1/32H02K3/24H02K9/10
    • PROBLEM TO BE SOLVED: To provide a rotatary electric machine that can reduce manufacturing cost while securing the cooling performance of field coils of a rotor.
      SOLUTION: Sub slots 7 serving as coolant ducts in the axial direction are provided at the bottoms of the coil slots 22 formed in the rotor 3. Radial coolant ducts 9, formed in the radial direction of the rotor 3 so as to communicate the sub slots 7 with the air gap 11, are juxtaposed through the field coils 8 of the rotor in the axial direction of the rotor 3. Radial coolant ducts 13, formed in the radial direction of the stator 2 so as to communicate the inner and outer peripheries of the stator 2 at a position corresponding to the radial coolant ducts 9 at the rotor side, are juxtaposed in the stator 2. The radial coolant ducts 9, 13 at the stator and rotor sides are structured with outgoing system ducts, which form the flows of coolant inward in the radial direction of the rotatary electric machine and returning system ducts, which form the flows of coolant outward in the radial direction. These outgoing and returning system ducts are communicated with each other via the sub slots 7.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种能够在确保转子的励磁线圈的冷却性能的同时降低制造成本的旋转电机。 解决方案:在轴向方向上用作冷却剂管道的副槽口7设置在形成在转子3中的线圈槽22的底部。径向冷却剂管道9沿转子3的径向方向形成以便连通 具有气隙11的副狭槽7在转子3的轴向上通过转子的励磁线圈8并置。径向冷却剂管道13沿定子2的径向方向形成,以使内部和 定子2的外周在与转子侧的径向冷却剂管道9相对应的位置处并置在定子2中。定子和转子侧的径向冷却剂管道9,13由输出系统管道构成,其形成 冷却剂沿旋转电机的径向向内的流动和返回的系统管道,其在径向方向上形成冷却剂流。 这些输出和返回的系统管道经由子槽口7彼此连通。版权所有:(C)2009,JPO&INPIT