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    • 1. 发明公开
    • Rotating electric machine
    • 旋转电机
    • EP2031733A2
    • 2009-03-04
    • EP08014313.4
    • 2008-08-11
    • Hitachi Ltd.
    • Tounosu, ShigekiIwashige, KengoIwano, RyuichiroSaeki, MitsuruHattori, KenichiTakahashi, Kazuhiko
    • H02K3/24H02K1/32H02K1/20
    • H02K1/32H02K3/24H02K9/10
    • A rotating electric machine wherein sub slots (7) serving as cooling fluid ducts in the axial direction are provided at the bottoms of the coil slots (22) formed in the rotor (3), radial cooling fluid ducts (9) are formed through the field coil (8) of the rotor (3) in the radial direction of the rotor (3) and juxtaposed in the axial direction of the rotor (3), so as to communicate the sub slots (7) with the air gap (11), and radial cooling fluid ducts (13) are formed through the stator (2) in the radial direction of the stator (2) and juxtaposed in the axial direction of the rotor (3), corresponding in position to the radial cooling fluid ducts (9) in the rotor (3), so as to communicate the inner periphery of the stator (2) with the outer periphery of the stator (2).
    • 一种旋转电机,其中在转子(3)中形成的线圈槽(22)的底部设置有用作轴向冷却流体通道的子槽(7),径向冷却流体通道(9)穿过 (3)的径向方向上并且在转子(3)的轴向方向上并置的转子(3)的励磁线圈(8),以使子槽(7)与气隙(11 )和径向冷却流体导管(13)在定子(2)的径向方向上穿过定子(2)并且在转子(3)的轴向方向上并列地形成,其在径向冷却流体导管 (2)的外周与定子(2)的内周连通。
    • 3. 发明公开
    • Sealed type electric rotating machine
    • Gekapselte rotierende elektrische Maschine
    • EP2149967A2
    • 2010-02-03
    • EP09166648.7
    • 2009-07-28
    • Hitachi Ltd.
    • Iwai, YasushiIwashige, KengoIizuka, MotonobuFujigaki, TetsuoKimura, MamoruKori, Daisuke
    • H02K9/18
    • H02K9/18H02K1/20H02K1/32H02K5/10
    • In a sealed type electric rotating machine, in which a cooling medium inflows from both end sides of a rotating shaft (1) of a claw-pole type rotor (2), a cooling medium having passed through a heat exchanging part (11) divides into one on an exhaust side (13A) and one on an intake air side (13B) to be used again for cooling of the claw-pole type rotor (2) and a stator (6). That is, on the exhaust side (13A), a cooling medium put in a state of being high in temperature as compared with that on the intake air side (13B) performs cooling, and the rotor and the stator are made higher in temperature on the exhaust side than on the intake air side. It is an object of the invention to level temperature profiles of the claw-pole type rotor (2) and the stator (6) in an axial direction to decrease maximum temperatures of the rotor and the stator.
      In order to attain the object, the invention has a feature in that a partition (23), which cuts off an axial duct (5), is provided toward the exhaust side relative to a center in the axial direction.
    • 在冷却介质从爪极型转子(2)的旋转轴(1)的两端流入的密闭式旋转电机中,通过热交换部(11)的冷却介质 在排气侧(13A)中的一个和进气侧(13B)中的一个被再次用于冷却爪极型转子(2)和定子(6)。 也就是说,在排气侧(13A)中,与进气侧(13B)相比处于高温状态的冷却介质进行冷却,使转子和定子的温度上升 排气侧比进气侧。 本发明的一个目的是在轴向上对爪极型转子(2)和定子(6)的温度分布进行调节,以降低转子和定子的最高温度。 为了实现该目的,本发明的特征在于,在轴向方向上的中心向排气侧设置切断轴向管道(5)的隔壁(23)。
    • 8. 发明公开
    • Rotary electric machine
    • Drehende elektrische Maschine
    • EP2088410A1
    • 2009-08-12
    • EP08002305.4
    • 2008-02-07
    • Hitachi, Ltd.
    • Nakahara, AkihitoKomura, AkiyoshiIde, KazumasaTakahashi, KazuhikoIwashige, KengoHattori, Kenichi
    • G01K1/02H02K9/08H02K9/24H02K11/00
    • G01K13/08G01K7/42G01K2213/00H02K9/12H02K11/25
    • A rotary electric machine which is smoothly operated with high efficiency by adequately controlling the cooling gas flow as needed to keep the highest temperature inside the rotary electric machine below a predetermined limit, includes a stator with armature windings wound around a stator core, a rotor placed inside the stator in a rotatable manner, and a cooling device for controlling cooling gas flow. The rotary electric machine further includes a device for measuring an ambient temperature and a device for detecting armature voltage and/or armature current and/or field current. The temperature inside the rotary electric machine is calculated from the measured ambient temperature, detection value by the detecting device and an directive value of cooling gas flow. And a calculated suitable value of cooling gas flow is determined according to the calculated temperature inside the rotary electric machine.
    • 通过适当地控制冷却气体流动使旋转电机内部的最高温度保持在预定极限以下,可以高效地平稳地运转的旋转电机包括:定子,其具有缠绕在定子芯上的电枢绕组,转子放置 可旋转的方式在定子内部,以及用于控制冷却气流的冷却装置。 旋转电机还包括用于测量环境温度的装置和用于检测电枢电压和/或电枢电流和/或场电流的装置。 旋转电机内的温度由测量的环境温度,检测装置的检测值和冷却气体流量的指示值计算。 根据计算出的旋转电机内的温度,确定冷却气体流量的合适值。