Permanent magnet motor or actuator with field weakening capability
    1.
    发明授权
    Permanent magnet motor or actuator with field weakening capability 失效
    具有弱磁能力的永磁电动机或执行器

    公开(公告)号:US08072107B2

    公开(公告)日:2011-12-06

    申请号:US12677747

    申请日:2008-09-11

    IPC分类号: H02K21/12

    CPC分类号: H02K21/029 H02K1/278

    摘要: The present disclosure relates generally to a permanent magnet, brushless motor comprising a primary rotor having alternating magnetic poles around a circumference, a secondary rotor similar to the primary rotor. The primary rotor may be free to rotate by approximately plus or minus one pole of the secondary rotor. As such, when the two rotor components have opposite polarities aligned, the motor may be in a field weakened state. Generally, the field weakened state may be the normal state of the motor. As a significant load is encountered, the rotors may automatically transition to a non-weakened state wherein similar polarities are aligned on the rotors. A permanent magnet, brushless motor as described herein may be employed at a motor level or integrated into a linear actuator, wherein the rotor of the permanent magnet, brushless motor may include a hollow shaft.

    摘要翻译: 本公开总体上涉及永磁体,无刷电动机,其包括具有围绕圆周的交变磁极的主转子,与主转子相似的次级转子。 主转子可以自由地旋转大约二次转子的正或负一极。 因此,当两个转子部件具有相反的极性对准时,电机可能处于弱磁状态。 一般来说,弱磁状态可能是电机的正常状态。 当遇到重大的负载时,转子可以自动地转变到非弱化状态,其中类似的极性在转子上对准。 本文所述的永磁体,无刷电动机可以在电动机级使用或集成到线性致动器中,其中永磁体的转子,无刷电动机可以包括空心轴。

    PERMANENT MAGNET MOTOR OR ACTUATOR WITH FIELD WEAKENING CAPABILITY
    2.
    发明申请
    PERMANENT MAGNET MOTOR OR ACTUATOR WITH FIELD WEAKENING CAPABILITY 失效
    具有现场弱化能力的永磁电机或执行器

    公开(公告)号:US20100213779A1

    公开(公告)日:2010-08-26

    申请号:US12677747

    申请日:2008-09-11

    IPC分类号: H02K1/27

    CPC分类号: H02K21/029 H02K1/278

    摘要: The present disclosure relates generally to a permanent magnet, brushless motor comprising a primary rotor having alternating magnetic poles around a circumference, a secondary rotor similar to the primary rotor. The primary rotor may be free to rotate by approximately plus or minus one pole of the secondary rotor. As such, when the two rotor components have opposite polarities aligned, the motor may be in a field weakened state. Generally, the field weakened state may be the normal state of the motor. As a significant load is encountered, the rotors may automatically transition to a non-weakened state wherein similar polarities are aligned on the rotors. A permanent magnet, brushless motor as described herein may be employed at a motor level or integrated into a linear actuator, wherein the rotor of the permanent magnet, brushless motor may include a hollow shaft.

    摘要翻译: 本公开总体上涉及永磁体,无刷电动机,其包括具有围绕圆周的交变磁极的主转子,与主转子相似的次级转子。 主转子可以自由地旋转大约二次转子的正或负一极。 因此,当两个转子部件具有相反的极性对准时,电机可能处于弱磁状态。 一般来说,弱磁状态可能是电机的正常状态。 当遇到重大的负载时,转子可以自动地转变到非弱化状态,其中类似的极性在转子上对准。 本文所述的永磁体,无刷电动机可以在电动机级使用或集成到线性致动器中,其中永磁体的转子,无刷电动机可以包括空心轴。

    Rotatable tool and apparatus therefor
    3.
    发明申请
    Rotatable tool and apparatus therefor 有权
    可旋转工具及其设备

    公开(公告)号:US20070164086A1

    公开(公告)日:2007-07-19

    申请号:US11634362

    申请日:2006-12-05

    IPC分类号: B23K20/12

    CPC分类号: B23K20/125 B23K20/1235

    摘要: A friction stir weld apparatus having a linear drive actuator and a separate friction stir weld device. The linear actuator and the friction stir weld device are driven by concentric motors. In the preferred embodiment, the thrust member of the actuator is connected to the friction stir weld device within or adjacent to the friction stir weld device motor to advance and retract the friction stir weld deice along a linear axis concentric with the actuator and friction stir weld device motors.

    摘要翻译: 具有线性驱动致动器和单独的摩擦搅拌焊接装置的摩擦搅拌焊接装置。 线性致动器和摩擦搅拌焊接装置由同心电动机驱动。 在优选实施例中,致动器的推力构件在摩擦搅拌焊接装置电动机内或邻近摩擦搅拌焊接装置马达处连接到摩擦搅拌焊接装置,以沿着与致动器和摩擦搅拌焊缝同心的线性轴线推进和缩回摩擦搅拌焊接 设备电机。