公开(公告)号：US07902709B2

公开(公告)日：2011-03-08

申请号：US12045240

申请日：2008-03-10

Applicant: Noboru Niguchi

Inventor： Noboru Niguchi

IPC: H02K21/12

CPC classification number: H02K1/2733 ,  H02K21/16 ,  H02K29/03 ,  H02K2201/06

Abstract: A permanent magnet included in a rotor of a brush-less motor is a radial anisotropic magnet in which multi-poles are magnetized in the circumferential direction and is skew magnetized along the axial direction in such a manner that a surface to one end part of an upper side from a central part in the axial direction and a surface to an end part of a lower side from the central part are axially shifted by a predetermined angle in the circumferential direction from each other. In accordance with this skew-magnetization, coggings including irregularly varying components generated in the rotor owing to the three-dimensional shapes of coil ends provided at opposite ends of a tooth 611a for fixing a winding have opposite phases to each other, so that the coggings are cancelled with each other. Accordingly, the coggings can be reduced or cancelled.

Abstract translation: 包括在无刷电动机的转子中的永磁体是径向各向异性磁体，其中多极在圆周方向上被磁化，并且沿着轴向以歪斜的方式磁化，使得至少一个 在轴向方向上的中心部分的上侧和从中心部分的下侧的表面到端部部分在圆周方向上轴向偏移预定的角度。 根据该偏斜磁化，由于设置在用于固定绕组的齿611a的相对端处的线圈端部的三维形状，包括在转子中产生的不规则变化的部件的梳理物具有彼此相反的相位，因此， 相互取消。 因此，可以减少或取消制图。

公开(公告)号：US07876013B2

公开(公告)日：2011-01-25

申请号：US12379668

申请日：2009-02-26

Applicant: Masayuki Okubo ,  Satoru Negishi ,  Koji Nara ,  Takeshi Yamazaki

Inventor： Masayuki Okubo ,  Satoru Negishi ,  Koji Nara ,  Takeshi Yamazaki

IPC: H02K1/28

CPC classification number: H02K29/03 ,  H02K1/278 ,  H02K1/28 ,  H02K2201/06

Abstract: A brushless motor has rotor cores dividedly formed as plural sections in an axial direction, segment magnets secured to outer circumferential surfaces of the rotor cores, and magnet holders secured to the rotor cores, respectively, for holding the segment magnet. Each of the rotor cores has holder-positioning grooves to which holder arms are fitted, and bridge parts formed corresponding to the holder positioning grooves. Each of the magnet holders has joint grooves fitted in the bridge parts and displaced from the holder arms by a step angle, the bridge parts being fitted in the joint grooves, thereby assembling a rotor.

Abstract translation: 无刷电动机具有沿轴向分割形成为多个部分的转子铁芯，分别固定在转子铁芯的外周面上的分段磁体和固定在转子铁芯上的用于保持分段磁铁的磁铁保持架。 每个转子芯具有保持器定位槽，保持器臂装配到该槽，以及对应于保持器定位槽形成的桥接部。 每个磁体保持器具有装配在桥接部分中的接合槽并且从保持器臂以一个阶梯角移位，桥接部分嵌入在接合槽中，从而组装转子。

公开(公告)号：US20100289369A1

公开(公告)日：2010-11-18

申请号：US12454220

申请日：2009-05-14

Applicant: Stephan Jockel

Inventor： Stephan Jockel

IPC: H02K1/27

CPC classification number: H02K29/03 ,  H02K7/1838 ,  H02K21/22 ,  H02K2201/06 ,  H02K2213/03

Abstract: A generator for a wind power has teeth which are surrounded by windings and separated by slots, and permanent magnets that form the poles of the exciter field. The ratio of the number of slots to the product of the numbers of poles and winding phases is fractional and >1. Alternatively or additionally, the front and/or rear edges of successive poles or groups of poles are oppositely inclined to the axis of rotation.

Abstract translation: 用于风力发电机的发电机具有由绕组围绕并由槽分开的齿以及形成励磁场的极的永磁体。 插孔数与极数和绕组相位乘积的比例分数为> 1。 替代地或另外地，连续的极或极组的前边缘和/或后边缘相对于旋转轴线倾斜。

公开(公告)号：US20100207464A1

公开(公告)日：2010-08-19

申请号：US12675577

申请日：2008-09-11

Applicant: Toshiyuki Aso ,  Hiroshi Kaneshige ,  Akie Tanaami

Inventor： Toshiyuki Aso ,  Hiroshi Kaneshige ,  Akie Tanaami

IPC: H02K41/03

CPC classification number: H02K41/03 ,  H02K29/03 ,  H02K2201/06

Abstract: Provided is a linear motor capable of reducing cogging.The linear motor has a field magnet part 5 having a plurality of permanent magnets 21 arranged to form N and S poles alternately; a core 14 having a plurality of salient poles 14a, 14b and 14c arranged facing the field magnet part 5; and a three-phase coil 16 wounded around the salient poles 14a, 14b and 14c of the core 14. At respective sides in the moving direction of an armature having the three-phase coil 16 and the core 14, auxiliary cores 18 of magnetic body are provided to sandwich the armature 10. The distance P1 between a center of each auxiliary core and a center of a center salient pole 14b is set to be substantially ¼×(2N+1)×a magnetic pole pitch between N-N poles of the field magnet part 5 (N: an integer equal to or greater than 1).

Abstract translation: 提供能够减少齿槽的线性电动机。 线性电动机具有磁场部分5，其具有交替地形成N和S极的多个永磁体21; 具有多个与磁场部5相对配置的凸极14a，14b，14c的芯体14; 以及缠绕在芯14的凸极14a，14b和14c周围的三相线圈16.在具有三相线圈16和铁芯14的电枢的移动方向的相应侧，磁体的辅助磁芯18 被设置为夹持电枢10.每个辅助芯的中心与中心凸极14b的中心之间的距离P1被设定为基本上为1/4×（2N + 1）×场的NN极之间的磁极间距 磁体部分5（N：等于或大于1的整数）。

公开(公告)号：US20100117475A1

公开(公告)日：2010-05-13

申请号：US12268592

申请日：2008-11-11

Applicant: Franco Leonardi ,  Michael W. Degner ,  Feng Liang

Inventor： Franco Leonardi ,  Michael W. Degner ,  Feng Liang

IPC: H02K21/14

CPC classification number: H02K1/2766 ,  B60L7/14 ,  B60L15/2009 ,  B60L50/16 ,  B60L50/61 ,  B60L2210/10 ,  B60L2210/30 ,  B60L2210/40 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2270/142 ,  B60L2270/145 ,  H02K29/03 ,  H02K2201/06 ,  Y02T10/6217 ,  Y02T10/641 ,  Y02T10/645 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7275

Abstract: An internal permanent magnet machine has multiple rotor sections, each section having multiple rotor laminations. Permanent magnets are placed asymmetrically in lamination openings to attenuate oscillations in torque caused by harmonic components of magnetic flux.

Abstract translation: 内部永磁机具有多个转子部分，每个部分具有多个转子叠片。 永磁体在层叠开口中不对称地放置，以衰减由磁通量的谐波分量引起的扭矩振荡。

公开(公告)号：US07701109B2

公开(公告)日：2010-04-20

申请号：US11950595

申请日：2007-12-05

Applicant: Toshio Ishikawa ,  Minoru Yabuki ,  Hiroshi Kanazawa ,  Yuji Enomoto ,  Yoshihisa Ishikawa

Inventor： Toshio Ishikawa ,  Minoru Yabuki ,  Hiroshi Kanazawa ,  Yuji Enomoto ,  Yoshihisa Ishikawa

IPC: H02K1/14

CPC classification number: H02K1/145 ,  H02K1/243 ,  H02K9/06 ,  H02K19/22 ,  H02K2201/06

Abstract: It is an object of the present invention to make it possible to easily wind a stator winding, enhance an occupied ratio in a stator core, reduce a winding resistance because there is no coil end, and change a field magnetic flux in accordance with a use.Stator pawl magnetic poles of a stator core extend from both sides in an axial direction alternately at locations opposed to a rotor to form a plurality of magnetic poles. With this stator core, it is only necessary to annularly wind a stator winding. Therefore, it is possible to enhance operability and an occupied ratio, and since there is no coil end, it is possible to reduce winding resistance. Since the rotor is a Randall type rotor having a field winding and a rotor pawl magnetic pole, it is possible to change the field magnetic flux in accordance with a use.

Abstract translation: 本发明的目的是使得可以容易地缠绕定子绕组，提高定子铁芯的占有率，由于不存在线圈端而降低绕组电阻，并且根据使用改变励磁磁通量 。 定子铁芯的定子爪磁极在与转子相对的位置处沿轴向方向两侧交替地形成多个磁极。 利用该定子铁心，只需要环绕定子绕组。 因此，可以提高可操作性和占有率，并且由于不存在线圈端，因此可以降低绕组阻力。 由于转子是具有励磁绕组和转子棘爪磁极的兰德尔型转子，因此可以根据用途改变励磁磁通量。

公开(公告)号：US07692354B2

公开(公告)日：2010-04-06

申请号：US11594057

申请日：2006-11-08

Applicant: Atef Abou-Akar ,  Eric Coupart

Inventor： Atef Abou-Akar ,  Eric Coupart

IPC: H02K1/06

CPC classification number: H02K29/03 ,  H02K1/146 ,  H02K1/278 ,  H02K1/2786 ,  H02K2201/06

Abstract: The present invention relates to a rotary electric machine comprising: a concentrated winding stator having teeth and coils placed on the teeth, the teeth having end faces that are convex towards the rotor; and a rotor comprising an armature defining a cylindrical surface and permanent magnets, the permanent magnets having inside faces that are cylinder portions matching the shape of the cylindrical surface of the armature, and outside faces that are plane and that face towards the stator.

Abstract translation: 旋转电机技术领域本发明涉及一种旋转电机，其特征在于，包括：集中绕组定子，其具有设置在所述齿上的齿和线圈，所述齿具有朝向所述转子凸出的端面; 以及包括限定圆柱形表面的电枢和永磁体的转子，所述永久磁体具有内表面，所述内表面是与所述电枢的圆柱形表面的形状匹配的圆柱部分，以及面向所述定子的平面和外表面。

公开(公告)号：US07642685B2

公开(公告)日：2010-01-05

申请号：US11355899

申请日：2006-02-17

Applicant: Misa Nakayama ,  Kouki Naka ,  Masao Morita ,  Masaya Inoue ,  Akihiro Shimada

Inventor： Misa Nakayama ,  Kouki Naka ,  Masao Morita ,  Masaya Inoue ,  Akihiro Shimada

IPC: H02K17/00

CPC classification number: H02K17/16 ,  H02K2201/06

Abstract: An electric rotating machine comprises: a stator in which a coil is wound on a plurality of teeth in concentrated winding, and the coil is connected to a three-phase power supply; and a rotor disposed in opposition to the teeth of the stator; wherein a ratio between the number of poles and the number of slots of the stator is 1:3. There is no higher harmonics of magnetomotive force in low order close to fundamental wave, thus enabling efficient operation of the electric rotating machine. Furthermore, owing to the stator of concentrated winding, it is possible to provide an electric rotating machine of high productivity with small coil end, high mass production, and high space factor.

Abstract translation: 旋转电机包括：定子，线圈缠绕在集中绕组上的多个齿上，线圈连接到三相电源; 以及与所述定子的齿相对设置的转子; 其中极数与定子的槽数之比为1:3。 没有较高次级的基本波的低磁通电动势，从而能够有效地操作电动旋转电机。 此外，由于集中绕组的定子，可以提供具有小线圈端，高批量生产和高空间因数的高生产率的旋转电机。

公开(公告)号：US20090183357A1

公开(公告)日：2009-07-23

申请号：US12383069

申请日：2009-03-20

Applicant: John Engquist ,  David Farnia

Inventor： John Engquist ,  David Farnia

IPC: H02K15/02

CPC classification number: H02K1/148 ,  H02K1/02 ,  H02K1/24 ,  H02K2201/06 ,  Y10T29/49009

Abstract: A compacted magnetic powder metal component assembly for use in an electrical machine is provided. Each component assembly has a top section and a bottom section.Each top section is comprised of a generally cylindrical center portion, a plurality of winding supports extending radially outward from the center portion and a core segment at a radial edge of each winding support.Each bottom section is comprised of a generally cylindrical center portion, a plurality of winding supports extending radially outward from the center portion, and a core segment in a radial edge of each winding segment support.The top section and the bottom section are combined to form the component assembly.

公开(公告)号：US20090115279A1

公开(公告)日：2009-05-07

申请号：US11922910

申请日：2006-06-28

Applicant: Alessandro Spaggiari

Inventor： Alessandro Spaggiari

IPC: H02K1/28

CPC classification number: H02K1/276 ,  H02K29/03 ,  H02K2201/06

Abstract: A rotor (1) for an electric motor with permanent magnets (10) has a principal axis (D), comprises a laminated core (2) delimited by a first and a second end wall (4, 5) and by a lateral surface (6) and has a hole (7) for coupling to a motor shaft (8) and a plurality of longitudinal slots (9) for housing the magnets (10); the rotor also comprises positioning devices (20) for stabilizing the magnets (10) in the slots (9).

Abstract translation: 一种用于具有永磁体（10）的电动机的转子（1）具有主轴（D），包括由第一和第二端壁（4,5）界定的层叠铁芯（2）和侧面 并且具有用于联接到电动机轴（8）的孔（7）和用于容纳磁体（10）的多个纵向槽（9）; 转子还包括用于使槽（9）中的磁体（10）稳定的定位装置（20）。