公开(公告)号：US20140246940A1

公开(公告)日：2014-09-04

申请号：US14275804

申请日：2014-05-12

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Sohji MURAKAMI ,  Motomichi OHTO ,  Kentaro INOMATA ,  Shinya MORIMOTO ,  Kozo IDE

IPC: H02K1/27 ,  H02P6/18

CPC classification number: H02K1/274 ,  H02K1/278 ,  H02K3/28 ,  H02K29/12 ,  H02P6/18 ,  H02P6/186 ,  H02P2207/05

Abstract: A motor includes a rotor including a rotor core provided with a plurality of permanent magnets in the circumferential direction and a stator including a stator core on which multi-phase stator coils are wound. The rotor has a structure in which the change pattern of magnetic properties of the rotor core or the permanent magnets changes in the circumferential direction, and the stator has a structure in which first and second stator coils of the stator coils are wound on the stator core for each phase in such a manner that passage of current is optionally switched, and when the passage of current is switched to the second stator coil, the distribution pattern of a magnetic field formed on the inner circumferential side by the stator has uniqueness over the whole circumference.

Abstract translation: 电动机包括转子，该转子包括在圆周方向上设置有多个永磁体的转子铁心和定子铁心，多个定子线圈缠绕在该定子铁心上。 转子具有这样的结构，其中转子铁芯或永磁体的磁特性的变化模式在圆周方向上变化，并且定子具有其中定子线圈的第一和第二定子线圈缠绕在定子芯上的结构 对于每个相，可以选择性地切换电流的通过，并且当电流的通过切换到第二定子线圈时，由定子在内周侧形成的磁场的分布模式在整体上是唯一的 圆周。

公开(公告)号：US20140246939A1

公开(公告)日：2014-09-04

申请号：US14276981

申请日：2014-05-13

Applicant: KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Sohji MURAKAMI ,  Motomichi OHTO ,  Kentaro INOMATA ,  Kozo IDE ,  Shinya MORIMOTO

IPC: H02K1/27 ,  H02P6/18

CPC classification number: H02K1/274 ,  H02K1/02 ,  H02K1/146 ,  H02K1/148 ,  H02K1/2733 ,  H02K1/276 ,  H02K1/278 ,  H02K3/28 ,  H02K29/12 ,  H02K2201/03 ,  H02P6/18 ,  H02P25/18

Abstract: The motor includes: a rotor that includes a rotor core provided with a plurality of permanent magnets in a circumferential direction; and a stator that includes a stator core on which multi-phase stator coils are wound and is arranged facing the rotor with a predetermined air gap therebetween. The rotor has a structure in which the change pattern of magnetic properties of the rotor core or the permanent magnets changes stepwise in the circumferential direction. The stator has a structure in which the distribution pattern of a magnetic field generated by the stator coils with one phase or with a combination of the phases has uniqueness over a whole circumference.

Abstract translation: 电动机包括：转子，其包括沿圆周方向设置有多个永磁体的转子铁芯; 以及定子，其包括定子芯，多个定子线圈缠绕在所述定子芯上，并且在所述定子芯之间以预定的气隙相对于所述转子布置。 转子具有转子铁心或永磁体的磁特性的变化方向在周向上逐步变化的结构。 定子具有这样一种结构，其中由定子线圈产生的具有一相或相组合的磁场的分布模式在整个圆周上是唯一的。

公开(公告)号：US20160134217A1

公开(公告)日：2016-05-12

申请号：US15001239

申请日：2016-01-20

Applicant: Yong-Cheol KWON ,  Seung-Ki SUL ,  KABUSHIKI KAISHA YASKAWA DENKI

Inventor： Shinya MORIMOTO ,  Sohji MURAKAMI ,  Noor Aamir BALOCH ,  Motomichi OHTO ,  Yong-Cheol KWON ,  Seung-Ki SUL

IPC: H02P6/18 ,  H02P21/14 ,  H02K11/20 ,  H02K1/27 ,  H02K1/16

CPC classification number: H02P6/183 ,  H02K1/02 ,  H02K1/16 ,  H02K1/276 ,  H02K1/2766 ,  H02K11/20 ,  H02K21/16

Abstract: A motor includes a stator and a rotor that is arranged opposite to the stator through a predetermined air gap. The stator is such that a plurality of coils are wound around respective slots for each of a plurality of phases. In the stator, the number of turns of one of the plurality of coils is different from those of the others for each of the phases. In the rotor, among a plurality of magnetic poles formed of a plurality of permanent magnets arranged in a circumferential direction of a core, a magnetoresistance of at least one magnetic pole is different from those of the others.

Abstract translation: 电动机包括定子和转子，其通过预定的气隙与定子相对设置。 定子使得多个线圈围绕多个相中的每一个的相应的槽而缠绕。 在定子中，对于各相中的多个线圈中的一个线圈的匝数与其它线圈的匝数不同。 在转子中，在由多个永久磁铁构成的多个磁极中，磁芯沿圆周方向排列，至少一个磁极的磁电阻与其他磁极不同。