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    • 6. 发明授权
    • Rotary electric machine having collar for restricting coil end expansion
    • 旋转电机具有用于限制线圈端部膨胀的轴环
    • US06724124B2
    • 2004-04-20
    • US10310042
    • 2002-12-05
    • Masami NiimiYasuyuki Wakahara
    • Masami NiimiYasuyuki Wakahara
    • H02K346
    • H02K5/148H02K3/51
    • In a rotary electric machine, a collar for restricting expansion of coil ends includes a boss fitted on an armature rotation shaft, a flange radially extending from the boss and a pressing portion for pressing coil ends toward an armature core. The thickness of the boss is greater than that of the flange, so that the force F1 that is caused by deflection of the flange when coil ends expand due to a temperature increase is smaller than the force F2 that is required to remove the boss from the rotation shaft. The force F1 is applied to the boss in a direction that the collar separates from the armature core. Because the pressing portion presses against the coil ends toward the armature core through an insulation ring, the coil ends are restricted from expanding by a centrifugal force when the armature rotates.
    • 在旋转电机中,用于限制线圈端部的膨胀的轴环包括安装在电枢旋转轴上的凸台,从凸台径向延伸的凸缘和用于将线圈端朝向电枢铁心按压的按压部。 凸台的厚度大于凸缘的厚度,使得当线圈端部由于温度升高而膨胀时由法兰的偏转引起的力F1小于将凸起从该凸起移除所需的力F2 旋转轴。 力F1沿轴环与电枢铁芯分离的方向施加到凸台。 由于按压部分通过绝缘环将电枢铁芯的线圈端部压向电枢铁心,所以当电枢旋转时,线圈端部被离心力限制。
    • 9. 发明授权
    • Brush holding device for rotating electrical machines
    • 用于旋转电机的刷子保持装置
    • US4673838A
    • 1987-06-16
    • US783073
    • 1985-10-02
    • Yoshito TakagiYasuyuki WakaharaSatoru HamanoMasanori MoriMasayuki HamaguchiNaoki Yoshikawa
    • Yoshito TakagiYasuyuki WakaharaSatoru HamanoMasanori MoriMasayuki HamaguchiNaoki Yoshikawa
    • H01R39/38H02K5/14H02K13/00
    • H01R39/38H02K5/148
    • A brush holding device of an "easy-to-assemble" type disposed between a yoke and an end frame of a motor. The device has a brush holder formed in one body from an electrically insulating material to include an annular-type field winding fixing frame, a brush holding stay having a plurality of brush chambers thereon, each of the brush chambers having at least an opening on the side of the end frame, integral connecting portions annularly connecting the spaced brush chambers therebetween, an insulating plate member having relatively rigid body portions to cover the openings of the brush chambers and relatively flexible portions connecting the body portions therebetween, and means for fixing the insulation to the brush holders by deforming the flexible portions of the insulator toward the brush holders. The aforementioned annular fixing frame has a plurality of flanges radially outwardly extending from the outer periphery thereof by which the annular frame is circumferentially axially aligned with the yoke. Consequently, the brush holding device is able to be rigidly held between the yoke and the end frame without using a bolt while establishing a good alignment of the device in the circumferential and the axial direction.
    • 设置在电动机的轭架和端框架之间的“易于组装”型的电刷保持装置。 该装置具有从电绝缘材料形成在一体中的电刷架,其包括环形场磁绕组固定框架,其上具有多个电刷室的电刷保持支架,每个电刷室至少具有一个开口 端部框架侧的一体连接部分,环形地连接间隔开的刷室的绝缘板部件,具有相对刚性的主体部分的绝缘板部件,以覆盖刷腔的开口和连接其间的主体部分的相对柔性部分,以及用于固定绝缘体的装置 通过使绝缘体的柔性部分朝着电刷架而变形到电刷架。 上述环形固定框具有从外周向径向向外延伸的多个凸缘,通过该凸缘环形框架与轭架沿周向轴向对准。 因此,能够在不使用螺栓的同时将电刷保持装置刚性地保持在轭架和端框架之间,同时在周向和轴向方向上确保装置的良好对准。