公开(公告)号：US09899885B2

公开(公告)日：2018-02-20

申请号：US14870567

申请日：2015-09-30

Applicant: DENSO CORPORATION

Inventor： Takeo Maekawa ,  Keiji Kondou ,  Shin Kusase

IPC: H02K1/27 ,  H02K1/28

CPC classification number: H02K1/27 ,  H02K1/28 ,  H02K2201/06

Abstract: A rotor includes a rotor core and permanent magnets. The rotor core includes annular bodies that are stacked in a stacking direction and each formed of core segments arranged along a circumferential direction. The number of the core segments in each of the annular bodies is set based on k, where k is the number of magnetic poles formed by the permanent magnets. The rotor core has n through-holes, where n≧k. The rotor further includes n fixing members each of which extends in the stacking direction through one corresponding through-hole of the rotor core. Between each circumferentially adjacent pair of the core segments, there is formed a gap that is greater than a clearance provided between the through-holes of the rotor core and the fixing members. At least one of the annular bodies is circumferentially offset from another annular body by an integer multiple of one magnetic pole.

公开(公告)号：US09876399B2

公开(公告)日：2018-01-23

申请号：US14654651

申请日：2013-12-11

Applicant: Robert Bosch GmbH

Inventor： Christian Aumann

IPC: H02K1/18 ,  H02K3/38 ,  H02K1/14 ,  H02K3/52 ,  H02K1/16

CPC classification number: H02K1/18 ,  H02K1/146 ,  H02K1/165 ,  H02K3/38 ,  H02K3/522 ,  H02K2201/06

Abstract: The invention concerns a stator for an electric machine, comprising a plate stack comprising a plurality of superposed stator plates, the plate stack being delimited at the ends by cover plates and an insulating plate being disposed on at least one cover plate in the plate stack, the insulating plate interlocking with the adjacent cover plate.

公开(公告)号：US09647499B2

公开(公告)日：2017-05-09

申请号：US14374093

申请日：2013-01-21

Applicant: SEW-EURODRIVE GMBH & CO. KG

Inventor： Florian Dreher

IPC: H02K1/06 ,  H02K1/14 ,  H02K37/14 ,  H02K3/52 ,  H02K15/02 ,  H02K1/02

CPC classification number: H02K1/145 ,  H02K1/02 ,  H02K3/525 ,  H02K15/02 ,  H02K15/022 ,  H02K37/14 ,  H02K2201/06 ,  H02K2201/12 ,  H02K2213/03 ,  Y10T29/49009

Abstract: An electric machine, especially a transversal flux machine, the stator being composed of a stack of phase segments, each phase segment having at least one stator segment and one stator winding, especially a single winding, each stator segment having an annular stator bridge, on which pole shoes are premolded, which in particular extend radially inward, and/or which extend in the direction of the rotor and/or which are situated between the rotor and the annular stator bridge, the pole shoes having the same shape, in particular, the axial width of the pole shoe decreasing with increasing radial clearance, the associated profile being disposed between a first and a second profile, the first profile being a linear function of the radial clearance, the pole back associated with the first profile being a planar area, in particular, the second profile being a circular function, in particular a circular segment function, the pole back associated with the second profile being a cylindrical section area, in particular.

公开(公告)号：US09634530B2

公开(公告)日：2017-04-25

申请号：US13839225

申请日：2013-03-15

Applicant: Steven D. Klein ,  Jeffrey T. Klass ,  Mohammed R. Islam ,  Mohammad S. Islam ,  Mazharul H. Chowdhury

Inventor： Steven D. Klein ,  Jeffrey T. Klass ,  Mohammed R. Islam ,  Mohammad S. Islam ,  Mazharul H. Chowdhury

IPC: H02K1/27 ,  H02K15/03 ,  H02K29/03 ,  H02K1/28 ,  H02K16/02

CPC classification number: H02K1/276 ,  H02K1/28 ,  H02K15/03 ,  H02K16/02 ,  H02K29/03 ,  H02K2201/06 ,  Y10T29/49012

Abstract: A rotor comprises a first rotor lamination and a second rotor lamination. The first rotor lamination and the second rotor lamination are configured for defining, when joined into rotor assembly, a central axis of rotation and a plurality of interior magnet pockets disposed symmetrically about the central axis of rotation, each pocket of the plurality of interior magnet pockets is configured for housing and retaining a permanent magnet. A method of forming a rotor comprises forming a first rotor lamination and a second rotor lamination, rotating the second rotor lamination about an axis of symmetry of the second rotor lamination; and mating the first rotor lamination to the second rotor lamination such that a first notch of the first rotor lamination is disposed adjacent to the first notch of the second rotor lamination.

公开(公告)号：US20170093237A1

公开(公告)日：2017-03-30

申请号：US15279997

申请日：2016-09-29

Applicant: Aisin Seiki Kabushiki Kaisha

Inventor： Teppei TSUDA ,  Masafumi SAKUMA

IPC: H02K1/27 ,  H02K3/12

CPC classification number: H02K1/2766 ,  H02K3/12 ,  H02K21/14 ,  H02K29/03 ,  H02K2201/06 ,  H02K2213/03

Abstract: A three-phase rotating electrical machine includes a stator including a stator core provided with a plurality of teeth and a plurality of slots, and winding, the three-phase rotating electrical machine including a rotor including a rotor core and a north magnetic pole and a south magnetic pole, the three-phase rotating electrical machine including a fractional slot configuration, the rotor core including a north magnetic pole acting portion, a south magnetic pole acting portion, a magnetic pole boundary dividing the north magnetic pole acting portion and the south magnetic pole acting portion in the circumferential direction, and a magnetic resistance portion, the magnetic resistance portion restricting the magnetic flux from passing through.

公开(公告)号：US20170040853A1

公开(公告)日：2017-02-09

申请号：US15149101

申请日：2016-05-07

Applicant: Philip Totaro

Inventor： Philip Totaro ,  Fang Deng ,  Daniel M. Saban ,  Seong T. Lee ,  Murtuza Lokhandwalla ,  Joel Hetrick ,  Janne Kinnunen

IPC: H02K1/27 ,  H02K21/16 ,  H02K1/14

CPC classification number: H02K21/14 ,  H02K1/16 ,  H02K1/278 ,  H02K1/28 ,  H02K7/1838 ,  H02K21/22 ,  H02K29/03 ,  H02K2201/06 ,  H02K2213/03

Abstract: A rotor or stator hub for an electric machine includes a plurality of magnets arranged in a predetermined same pattern on a plurality of uniformly sized carrier plates. A plurality of permanent magnets are uniformly mounted on each of the carrier plates proximate a first edge of the carrier plate and spaced away from a second edge of the carrier plate. The carrier plates may be mounted on a rotor or stator hub in a predetermined configuration to create a plurality of axial array groups.

Abstract translation: 用于电机的转子或定子轮毂包括以多个均匀尺寸的载板布置成预定相同图案的多个磁体。 多个永磁体均匀地安装在每个承载板上，靠近承载板的第一边缘并与承载板的第二边缘间隔开。 承载板可以以预定构造安装在转子或定子毂上，以产生多个轴向阵列组。

公开(公告)号：US09515527B2

公开(公告)日：2016-12-06

申请号：US13919392

申请日：2013-06-17

Applicant: JTEKT CORPORATION

Inventor： Yoshiyuki Shibata

IPC: H02K21/12 ,  H02K15/12 ,  H02K15/02 ,  H02K1/27 ,  H02K15/03

CPC classification number: H02K1/2773 ,  H02K15/03 ,  H02K2201/06 ,  Y10T29/49012

Abstract: A plurality of lamination steel sheets that form a rotor core are stacked so that the lamination steel sheets are angularly shifted from each other, and a plurality of cavities are formed. Permanent magnets are molded and disposed in the cavities by injection molding. Each permanent magnet has a uniform plate thickness, and is bent with respect to an axial direction so as to have a triangular wave shape or an S shape. The permanent magnets are magnetized after being disposed in the cavities. The paired magnet pieces have poles of the same polarity, which face each other in the circumferential direction of a rotor, and each of the magnet pieces is magnetized in directions of normals to a surface of the magnet piece, the surface having a linear sectional shape.

Abstract translation: 形成转子铁心的多个层叠钢板被层叠，使得层压钢板彼此成角度地移动，形成多个空腔。 永磁体通过注塑成型并设置在空腔中。 每个永磁体具有均匀的板厚度，并且相对于轴向弯曲成具有三角波形或S形。 在设置在空腔中之后，永磁体被磁化。 成对的磁体具有在转子的圆周方向上彼此相同的极性的磁极，并且每个磁体片在与磁体片的表面的法线方向上磁化，该表面具有线性截面形状 。

公开(公告)号：US09484776B2

公开(公告)日：2016-11-01

申请号：US14109210

申请日：2013-12-17

Applicant: LG INNOTEK CO., LTD.

Inventor： Bong Bae Kong

IPC: H02K1/27

CPC classification number: H02K1/274 ,  H02K1/278 ,  H02K2201/06

Abstract: A rotor of a motor includes a first rotor that includes a first rotor core and a plurality of first magnets that are coupled to an outer circumferential surface of the first rotor core, a second rotor that includes a second rotor core and a plurality of second magnets that are coupled to an outer circumferential surface of the second rotor core, and a third rotor that is stacked between the first rotor and the second rotor and includes a third rotor core and a plurality of third magnets that are coupled to an outer circumferential surface of the third rotor core, wherein magnetic fluxes of the plurality of third magnets are less than magnetic fluxes of the plurality of first magnets or second magnets.

Abstract translation: 电动机的转子包括：第一转子，其包括第一转子铁芯和耦合到第一转子铁芯的外圆周表面的多个第一磁体;第二转子，其包括第二转子铁心和多个第二磁铁 其耦合到第二转子芯的外周表面，以及第三转子，其堆叠在第一转子和第二转子之间，并且包括第三转子芯和多个第三磁体，该第三转子芯和多个第三磁体联接到 所述第三转子铁心，其中所述多个第三磁体的磁通量小于所述多个第一磁体或所述第二磁体的磁通量。

公开(公告)号：US20160276880A1

公开(公告)日：2016-09-22

申请号：US15059684

申请日：2016-03-03

Applicant: Kabushiki Kaisha Toshiba

Inventor： Yasuhito UEDA ,  Hiroshi TAKAHASHI

IPC: H02K1/14 ,  H02K11/21

CPC classification number: H02K29/03 ,  H02K21/145 ,  H02K2201/06 ,  H02K2213/03

Abstract: According to one embodiment, a transverse flux machine includes a stator and a rotor. The stator includes a winding and a first ferromagnetic unit. The winding is wound along a rotational direction of a rotation axis. The first ferromagnetic unit has L (L is integral number) magnetic poles holding the winding. The rotor is rotatable relatively to the stator around the rotation axis. The rotor includes a second ferromagnetic unit having L magnetic poles facing the first ferromagnetic unit. If an order of harmonic component of torque ripple to be reduced is (N×1), (N×2), . . . , (N×(M−1)) (M and N are integral numbers. ML), among L magnetic poles in the first and second ferromagnetic units, a relative position of M magnetic poles along the rotational direction is shifted by θ1 ((180°/N/M)θ1(540°/N/M)) in order.

Abstract translation: 根据一个实施例，横向磁通机包括定子和转子。 定子包括绕组和第一铁磁单元。 沿着旋转轴线的旋转方向卷绕绕组。 第一铁磁单元具有保持绕组的L（L是整数）磁极。 转子可绕旋转轴线相对于定子旋转。 转子包括具有面对第一铁磁单元的L个磁极的第二铁磁单元。 如果要减小转矩波动的谐波分量的次序是（N×1），（N×2）。 。 。 ，（N×（M-1））（M和N是积分数ML），在第一和第二铁磁单元的L个磁极中，M个磁极沿旋转方向的相对位置偏移θ1（ 180°/ N / M）θ1（540°/ N / M））。

公开(公告)号：US20160241108A1

公开(公告)日：2016-08-18

申请号：US15024156

申请日：2013-09-24

Applicant: Mitsuba Corporation

Inventor： Masaaki Kimura ,  Hiroto Tanaka ,  Tamotsu Iwazaki

IPC: H02K7/116 ,  H02P27/08 ,  B60S1/08 ,  H02K1/27 ,  H02K11/215 ,  H02P6/30 ,  H02P6/16

CPC classification number: H02K7/1166 ,  B60S1/08 ,  H02K1/2753 ,  H02K1/276 ,  H02K1/278 ,  H02K5/10 ,  H02K11/215 ,  H02K29/03 ,  H02K29/08 ,  H02K2201/03 ,  H02K2201/06 ,  H02K2213/03 ,  H02P6/16 ,  H02P6/30 ,  H02P27/08

Abstract: A magnet 34 for the rotating shaft (first magnet, second magnet) is installed on the extended portion of the rotating shaft 33b in the gear housing 41, and Hall ICs 65a to 65c for the rotating shaft (first sensor, second sensor) are formed on the control board 60 inside the gear housing 41 so as to face the magnet 34 for the rotating shaft. The Hall ICs 65a to 65c for the rotating shaft are adapted to detect the rotation position of the rotating shaft 33b relative to the stator 32, that is, the rotation position of the rotor 33 relative to the stator 32, and the Hall ICs 65a to 65c for the rotating shaft are adapted to detect the rotation number of the rotating shaft 33b.

Abstract translation: 用于旋转轴（第一磁体，第二磁体）的磁体34安装在齿轮壳体41中的旋转轴33b的延伸部分上，并且形成用于旋转轴（第一传感器，第二传感器）的霍尔IC 65a至65c 在齿轮壳体41内的控制板60上，以面对旋转轴的磁体34。 用于旋转轴的霍尔IC 65a至65c适于检测旋转轴33b相对于定子32的旋转位置，即转子33相对于定子32的旋转位置，以及霍尔IC 65a至 65c用于检测旋转轴33b的旋转数。