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    Interior permanent magnet machine with radially asymmetric magnet configuration
    4.
    发明授权
    Interior permanent magnet machine with radially asymmetric magnet configuration 有权
    内置永磁电机具有径向不对称磁体配置

    公开(公告)号：US08487494B2

    公开(公告)日：2013-07-16

    申请号：US13238008

    申请日：2011-09-21

    申请人： Sinisa Jurkovic ,  Khwaja M. Rahman ,  Xinyu Zhou ,  Xu Han ,  Qiang Niu

    发明人： Sinisa Jurkovic ,  Khwaja M. Rahman ,  Xinyu Zhou ,  Xu Han ,  Qiang Niu

    IPC分类号： H02K1/27

    CPC分类号： H02K1/2766 ,  H02K1/276

    摘要： An interior permanent magnet machine is provided with a rotor that includes a plurality of slots and at least one barrier defined by the plurality of slots. A plurality of first and second magnets are disposed within the barrier. The rotor is configured such that at least one of the first magnets is located at a different radial distance from the center of the rotor relative to at least one of the second magnets. The rotor may be configured to produce an averaging effect similar to that achieved through traditional skewing of rotor magnets. The rotor includes a plurality of poles defined by respective pole axes in the rotor and may be configured to reflect radial asymmetry between poles (pole-to-pole) and/or radial asymmetry within a pole.

    摘要翻译： 内置永磁电机设有转子，转子包括多个槽和由多个槽限定的至少一个挡板。 多个第一和第二磁体设置在屏障内。 转子被构造成使得至少一个第一磁体位于与转子的中心相对于至少一个第二磁体不同的径向距离处。 转子可以被配置成产生类似于通过转子磁体的传统偏斜实现的平均效果。 转子包括由转子中的相应极轴限定的多个极，并且可以被配置成反射极之间的极（极 - 极）和/或径向不对称之间的径向不对称。

    Rotor geometry for reduction of torque ripple in a wound field machine
    5.
    发明授权
    Rotor geometry for reduction of torque ripple in a wound field machine 有权
    用于减少伤口机器中转矩波动的转子几何形状

    公开(公告)号：US08957563B2

    公开(公告)日：2015-02-17

    申请号：US13314065

    申请日：2011-12-07

    申请人： Khwaja M. Rahman ,  Constantin C. Stancu ,  Sinisa Jurkovic ,  Xinyu Zhou ,  Qiang Niu ,  Xu Han

    发明人： Khwaja M. Rahman ,  Constantin C. Stancu ,  Sinisa Jurkovic ,  Xinyu Zhou ,  Qiang Niu ,  Xu Han

    IPC分类号： H02K1/06

    CPC分类号： H02K1/24 ,  H02K29/03 ,  H02K2201/03 ,  H02K2213/03

    摘要： An electric machine is provided with a rotor configured to be rotatable within a stator. A first and second tooth are disposed circumferentially along an outer perimeter of the rotor and at least partially define a first slot. The first and the second tooth define a respective first and second outer edge extending between a respective tooth base and a respective tooth tip. An arc radius from the origin to the outer perimeter of the rotor varies along the first outer edge of the first tooth, thereby creating a first non-uniform gap between the rotor and the stator. The arc radius from the origin to the outer perimeter of the rotor varies along the second outer edge of the second tooth, thereby creating a second non-uniform gap between the rotor and the stator. The rotor geometry is configured to reduce torque ripple without skewing either the rotor or the stator.

    摘要翻译： 电机设置有可在定子内旋转的转子。 第一和第二齿沿着转子的外周边沿圆周设置并且至少部分地限定第一槽。 第一和第二齿限定在相应的齿根和相应的齿尖之间延伸的相应的第一和第二外边缘。 从转子的原点到外周的弧半径沿着第一齿的第一外边缘变化，从而在转子和定子之间产生第一不均匀的间隙。 从转子的原点到外周的弧半径沿着第二齿的第二外边缘变化，从而在转子和定子之间产生第二非均匀间隙。 转子几何形状被配置为减小转矩脉动，而不会使转子或定子歪斜。

    INTERIOR PERMANENT MAGNET MACHINE WITH RADIALLY ASYMMETRIC MAGNET CONFIGURATION
    6.
    发明申请
    INTERIOR PERMANENT MAGNET MACHINE WITH RADIALLY ASYMMETRIC MAGNET CONFIGURATION 有权
    内置永磁电机，配有放射性不对称磁铁配置

    公开(公告)号：US20130069470A1

    公开(公告)日：2013-03-21

    申请号：US13238008

    申请日：2011-09-21

    申请人： Sinisa Jurkovic ,  Khwaja M. Rahman ,  Xinyu Zhou ,  Xu Han ,  Qiang Niu

    发明人： Sinisa Jurkovic ,  Khwaja M. Rahman ,  Xinyu Zhou ,  Xu Han ,  Qiang Niu

    IPC分类号： H02K1/27

    CPC分类号： H02K1/2766 ,  H02K1/276

    摘要： An interior permanent magnet machine is provided with a rotor that includes a plurality of slots and at least one barrier defined by the plurality of slots. A plurality of first and second magnets are disposed within the barrier. The rotor is configured such that at least one of the first magnets is located at a different radial distance from the center of the rotor relative to at least one of the second magnets. The rotor may be configured to produce an averaging effect similar to that achieved through traditional skewing of rotor magnets. The rotor includes a plurality of poles defined by respective pole axes in the rotor and may be configured to reflect radial asymmetry between poles (pole-to-pole) and/or radial asymmetry within a pole.

    摘要翻译： 内置永磁电机设有转子，转子包括多个槽和由多个槽限定的至少一个挡板。 多个第一和第二磁体设置在屏障内。 转子被构造成使得至少一个第一磁体位于与转子的中心相对于至少一个第二磁体不同的径向距离处。 转子可以被配置成产生类似于通过转子磁体的传统偏斜实现的平均效果。 转子包括由转子中的相应极轴限定的多个极，并且可以被配置成反射极之间的极（极 - 极）和/或径向不对称之间的径向不对称。

    Axially asymmetric permanent magnet machine
    7.
    发明授权
    Axially asymmetric permanent magnet machine 有权
    轴向不对称永磁机

    公开(公告)号：US08884485B2

    公开(公告)日：2014-11-11

    申请号：US13448508

    申请日：2012-04-17

    申请人： Sinisa Jurkovic ,  Khwaja M. Rahman ,  Xinyu Zhou ,  Xu Han ,  Qiang Niu

    发明人： Sinisa Jurkovic ,  Khwaja M. Rahman ,  Xinyu Zhou ,  Xu Han ,  Qiang Niu

    IPC分类号： H02K21/12

    CPC分类号： H02K1/2766 ,  H02K16/02 ,  H02K29/03 ,  H02K2201/03 ,  H02K2213/03

    摘要： A permanent magnet machine is provided with a rotor positioned at least partially within a stator. The rotor includes first and second ring segments oriented axially around a central axis. The rotor defines first and second configurations in the first and second ring segments, respectively. The first configuration is sufficiently different from the second configuration such that torque ripple may be minimized. A first layer of slots, defining a slot outer edge, may be formed in the rotor. In one embodiment, a stator-to-slot gap varies between the first and second ring segments. In another embodiment, a stator-rotor gap varies between the first and second ring segments. In another embodiment, a bridge thickness varies between the first and second ring segments. Thus the rotor exhibits axial asymmetry.

    摘要翻译： 一种永磁体机器设置有至少部分位于定子内的转子。 转子包括围绕中心轴线轴向取向的第一和第二环形段。 转子分别限定第一和第二环段中的第一和第二构造。 第一配置与第二配置充分不同，使得扭矩波动可能被最小化。 限定槽外边缘的第一层槽可以形成在转子中。 在一个实施例中，定子与槽间隙在第一和第二环段之间变化。 在另一个实施例中，定子 - 转子间隙在第一和第二环段之间变化。 在另一个实施例中，桥接厚度在第一和第二环段之间变化。 因此转子表现出轴向不对称性。

    AXIALLY ASYMMETRIC PERMANENT MAGNET MACHINE
    8.
    发明申请
    AXIALLY ASYMMETRIC PERMANENT MAGNET MACHINE 有权
    AXIALLY不对称永磁电机

    公开(公告)号：US20130270952A1

    公开(公告)日：2013-10-17

    申请号：US13448508

    申请日：2012-04-17

    申请人： Sinisa Jurkovic ,  Khwaja M. Rahman ,  Xinyu Zhou ,  Xu Han ,  Qiang Niu

    发明人： Sinisa Jurkovic ,  Khwaja M. Rahman ,  Xinyu Zhou ,  Xu Han ,  Qiang Niu

    IPC分类号： H02K1/27

    CPC分类号： H02K1/2766 ,  H02K16/02 ,  H02K29/03 ,  H02K2201/03 ,  H02K2213/03

    摘要： A permanent magnet machine is provided with a rotor positioned at least partially within a stator. The rotor includes first and second ring segments oriented axially around a central axis. The rotor defines first and second configurations in the first and second ring segments, respectively. The first configuration is sufficiently different from the second configuration such that torque ripple may be minimized. A first layer of slots, defining a slot outer edge, may be formed in the rotor. In one embodiment, a stator-to-slot gap varies between the first and second ring segments. In another embodiment, a stator-rotor gap varies between the first and second ring segments. In another embodiment, a bridge thickness varies between the first and second ring segments. Thus the rotor exhibits axial asymmetry.

    摘要翻译： 一种永磁体机器设置有至少部分位于定子内的转子。 转子包括围绕中心轴线轴向取向的第一和第二环形段。 转子分别限定第一和第二环段中的第一和第二构造。 第一配置与第二配置充分不同，使得扭矩波动可能被最小化。 限定槽外边缘的第一层槽可以形成在转子中。 在一个实施例中，定子与槽间隙在第一和第二环段之间变化。 在另一个实施例中，定子 - 转子间隙在第一和第二环段之间变化。 在另一个实施例中，桥接厚度在第一和第二环段之间变化。 因此转子表现出轴向不对称性。

    ROTOR GEOMETRY FOR REDUCTION OF TORQUE RIPPLE IN A WOUND FIELD MACHINE
    9.
    发明申请
    ROTOR GEOMETRY FOR REDUCTION OF TORQUE RIPPLE IN A WOUND FIELD MACHINE 有权
    用于减少在现场机械中扭转裂纹的转子几何

    公开(公告)号：US20130147309A1

    公开(公告)日：2013-06-13

    申请号：US13314065

    申请日：2011-12-07

    申请人： Khwaja M. Rahman ,  Constantin C. Stancu ,  Sinisa Jurkovic ,  Xinyu Zhou ,  Qiang Niu ,  Xu Han

    发明人： Khwaja M. Rahman ,  Constantin C. Stancu ,  Sinisa Jurkovic ,  Xinyu Zhou ,  Qiang Niu ,  Xu Han

    IPC分类号： H02K1/26

    CPC分类号： H02K1/24 ,  H02K29/03 ,  H02K2201/03 ,  H02K2213/03

    摘要： An electric machine is provided with a rotor configured to be rotatable within a stator. A first and second tooth are disposed circumferentially along an outer perimeter of the rotor and at least partially define a first slot. The first and the second tooth define a respective first and second outer edge extending between a respective tooth base and a respective tooth tip. An arc radius from the origin to the outer perimeter of the rotor varies along the first outer edge of the first tooth, thereby creating a first non-uniform gap between the rotor and the stator. The arc radius from the origin to the outer perimeter of the rotor varies along the second outer edge of the second tooth, thereby creating a second non-uniform gap between the rotor and the stator. The rotor geometry is configured to reduce torque ripple without skewing either the rotor or the stator.

    摘要翻译： 电机设置有可在定子内旋转的转子。 第一和第二齿沿着转子的外周边沿圆周设置并且至少部分地限定第一槽。 第一和第二齿限定在相应的齿根和相应的齿尖之间延伸的相应的第一和第二外边缘。 从转子的原点到外周的弧半径沿着第一齿的第一外边缘变化，从而在转子和定子之间产生第一不均匀的间隙。 从转子的原点到外周的弧半径沿着第二齿的第二外边缘变化，从而在转子和定子之间产生第二非均匀的间隙。 转子几何形状被配置为减小转矩脉动，而不会使转子或定子歪斜。

    ROTOR SLOT ASYMMETRY IN AN ELECTRIC MOTOR
    10.
    发明申请
    ROTOR SLOT ASYMMETRY IN AN ELECTRIC MOTOR 审中-公开
    电动马达中的转子不对称

    公开(公告)号：US20120293105A1

    公开(公告)日：2012-11-22

    申请号：US13112020

    申请日：2011-05-20

    申请人： Sinisa Jurkovic ,  Khwaja M. Rahman ,  Edward L. Kaiser ,  Xinyu Zhou ,  Qiang Niu ,  Xu Han

    发明人： Sinisa Jurkovic ,  Khwaja M. Rahman ,  Edward L. Kaiser ,  Xinyu Zhou ,  Qiang Niu ,  Xu Han

    IPC分类号： H02K1/26 ,  H02P23/00

    CPC分类号： H02K1/24 ,  H02K19/12

    摘要： An electric motor includes a stator configured to receive electrical energy and generate an electromagnetic field in accordance with the electrical energy received. A rotor is in electromagnetic communication with the stator and is configured to rotate in accordance with the electromagnetic field generated by the stator. The rotor includes a plurality of poles including a first set of poles and a second set of poles. The first set of poles defines a first slot and the second set of poles defines a second slot that has a different configuration than the first slot to reduce a torque ripple effect. The electric motor may be used in a system having a power source configured to output direct current energy and an inverter configured to convert direct current energy to alternating current energy.

    摘要翻译： 电动机包括定子，其被配置为接收电能并根据所接收的电能产生电磁场。 转子与定子电磁连通，并被配置成根据定子产生的电磁场旋转。 转子包括多个极，包括第一组极和第二组极。 第一组极限定第一槽，第二组磁极限定第二槽，其具有不同于第一槽的构造，以减小转矩脉动效应。 电动机可以用于具有配置为输出直流能量的电源的系统和被配置为将直流能转换为交流电能的逆变器。