公开(公告)号：US08957563B2

公开(公告)日：2015-02-17

申请号：US13314065

申请日：2011-12-07

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

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

IPC: H02K1/06

CPC classification number: H02K1/24 ,  H02K29/03 ,  H02K2201/03 ,  H02K2213/03

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US20150042194A1

公开(公告)日：2015-02-12

申请号：US14455160

申请日：2014-08-08

Applicant: Johnson Electric S.A.

Inventor： Yue LI ,  Bao Ting LIU ,  Chui You ZHOU ,  Yong WANG ,  Ming CHEN ,  Xiao Ning ZHU

IPC: H02K1/16 ,  H02K21/00 ,  H02K1/27

CPC classification number: H02K1/16 ,  H02K1/2706 ,  H02K21/00 ,  H02K21/16 ,  H02K29/03 ,  H02K2201/03

Abstract: A single-phase brushless motor includes a stator and a rotor rotatable with respect to the stator. The rotor includes a number of permanent magnetic poles. The stator includes a stator core and a winding wound on the stator core. The stator core includes an outer annular portion, an inner annular portion, and connecting portions connecting the inner and outer annular portions. The winding is wound around the connecting portions. The rotor is received in the inner annular portion. The inner annular portion and the rotor form a substantially uniform air gap. A recess is formed in an inner surface of a part of the inner annular portion between each pair of adjacent connecting portions. A center of each recess deviates from a center line of symmetry of the corresponding pair of connecting portions.

Abstract translation: 单相无刷电动机包括定子和可相对于定子旋转的转子。 转子包括多个永久磁极。 定子包括定子芯和绕在定子芯上的绕组。 定子铁芯包括外环形部分，内环形部分和连接内环和外环部分的连接部分。 绕组缠绕在连接部分上。 转子被容纳在内环形部分中。 内环形部分和转子形成基本均匀的气隙。 在每对相邻的连接部分之间的内环形部分的一部分的内表面中形成凹部。 每个凹部的中心偏离相应的一对连接部分的中心对称线。

公开(公告)号：US20150022036A1

公开(公告)日：2015-01-22

申请号：US13946698

申请日：2013-07-19

Applicant: General Electric Company

Inventor： Venkata Subramanya Sarma Devarakonda ,  Patrick Robert Davis ,  James Jonathan Grant ,  Paul August Quail ,  John Russell Yagielski

IPC: H02K1/26 ,  H02K3/12 ,  H02K9/00

CPC classification number: H02K1/265 ,  H02K1/246 ,  H02K3/12 ,  H02K9/00 ,  H02K19/00 ,  H02K29/03 ,  H02K2201/03 ,  H02K2213/03

Abstract: Various embodiments include apparatuses adapted to include a dynamoelectric machine rotor with a modified outer surface. In some embodiments apparatuses include a dynamoelectric machine rotor including a rotor body having a spindle, pole regions, the pole regions having a non-uniform radial distance from an axis of rotation of the rotor to an outer surface of the pole regions and a plurality of slots in the outer surface of the rotor body, the plurality of slots being spaced apart in a circumferential direction of the rotor body, each of the plurality of slots extending in an axial direction of the rotor body.

Abstract translation: 各种实施例包括适于包括具有改进的外表面的电动机转子的装置。 在一些实施例中，设备包括电动机转子，其包括具有主轴的转子体，极区域，所述极区域具有从转子的旋转轴线到极区域的外表面的不均匀的径向距离，以及多个 所述多个槽沿所述转子体的圆周方向间隔开，所述多个槽中的每一个在所述转子体的轴向方向上延伸。

公开(公告)号：US08912766B2

公开(公告)日：2014-12-16

申请号：US13763612

申请日：2013-02-08

Applicant: General Electric Company

Inventor： John Wesley Grant ,  Raymond Verle Jensen

IPC: H02P9/00

CPC classification number: H02P9/006 ,  H02K11/20 ,  H02K2201/03

Abstract: A generator airgap monitoring system includes a first proximity sensor disposed in a first location of a stator and configured to transmit a first signal representative of a first distance between the first proximity sensor and a plurality of rotor poles of a rotor, and a controller communicatively coupled to the first proximity sensor. The controller is configured to derive a first plurality of instantaneous airgaps based on the first signal and to determine a difference between a first instantaneous airgap of the first plurality of instantaneous airgaps and a second instantaneous airgap of the first plurality of instantaneous airgaps. The first plurality of instantaneous airgaps includes a first plurality of measurements of airgaps between the stator and the plurality of rotor poles when the rotor is rotating. The first instantaneous airgap and the second instantaneous airgaps include measurements for respective rotor poles.

Abstract translation: 发电机气隙监测系统包括设置在定子的第一位置中的第一接近传感器，其被配置为传送代表第一接近传感器和转子的多个转子极之间的第一距离的第一信号，以及控制器，其通信耦合 到第一接近传感器。 控制器被配置为基于第一信号导出第一多个瞬时气隙并且确定第一多个瞬时气隙的第一瞬时气隙和第一多个瞬时气隙的第二瞬时气隙之间的差。 第一组多个瞬时气隙包括当转子旋转时定子和多个转子极之间的气隙的第一多个测量值。 第一瞬时气隙和第二瞬时气隙包括相应转子极的测量。

公开(公告)号：US20140346908A1

公开(公告)日：2014-11-27

申请号：US14269583

申请日：2014-05-05

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： ANDERS JAKOB MADSEN

IPC: H02K21/02 ,  H02K21/22

CPC classification number: H02K21/025 ,  H02K1/12 ,  H02K7/1838 ,  H02K21/22 ,  H02K2201/03 ,  H02K2213/09 ,  Y02E10/725

Abstract: An electric machine, in particular a generator for a wind turbine, is provided. The electric machine has a rotor and a stator, wherein the rotor is arranged rotatably relative to the stator about an axis of rotation. The rotor and the stator are arranged in such a way that a stator surface of the stator and a rotor surface of the rotor are spaced apart from one another. The rotor surface is circular about the axis of rotation. The stator is deformable in such a way that the stator surface has a non-circular surface profile about the axis of rotation without any magnetic interactions between the rotor and the stator being exerted within at least one segment of the stator, and that, in the event that magnetic interactions between the rotor and the stator are exerted, the stator is deformed in such a way that the stator surface is circular about the axis of rotation, with the result that a spacing between the stator surface and the rotor surface is constant.

Abstract translation: 提供一种电机，特别是用于风力涡轮机的发电机。 电机具有转子和定子，其中转子相对于定子围绕旋转轴线可旋转地布置。 转子和定子以使得定子的定子表面和转子的转子表面彼此间隔开的方式布置。 转子表面围绕旋转轴线是圆形的。 定子可以这样一种方式变形，使得定子表面围绕旋转轴线具有非圆形表面轮廓，而转子和定子之间没有任何磁性相互作用被施加在定子的至少一个部分内，并且在 发生转子和定子之间的磁相互作用的事件，定子以使得定子表面围绕旋转轴线是圆形的方式变形，结果定子表面和转子表面之间的间隔是恒定的。

公开(公告)号：US20140333168A1

公开(公告)日：2014-11-13

申请号：US14362363

申请日：2012-10-30

Applicant: VALEO EQUIPEMENTS ELECTRIQUES MOTEUR

Inventor： Lilya Bouarroudj ,  Jean-Claude Matt ,  Jean-Claude Labrosse

IPC: H02K1/27

CPC classification number: H02K1/2773 ,  H02K1/2706 ,  H02K21/12 ,  H02K2201/03 ,  H02K2213/03

Abstract: A rotor (1) comprising a plurality of alternating magnetic poles formed by permanent magnets (3) distributed regularly between a circumferential portion (5) and a central portion (6) of the magnetic body (2) of the rotor and defining circumferential pole sections (7). The pole sections have a pre-determined pole pitch (Thetarho) and comprise a lobe-forming radial section (8). The lobe-forming radial section partially covers the magnets, such as to maximize a useful magnetic flux (PhiU) flowing radially through each of the pole sections and to minimize a leakage magnetic flux flowing through the circumferential portion. The pole sections can have a pre-determined pole overlap angle (Thetar) such as to maximize the useful magnetic flux (PhiU) and to minimize the leakage magnetic flux (PhiL), said overlap angle (Thetar) being a viewing angle of the lobe (8) from a point on the axis of the rotor.

Abstract translation: 1.一种转子（1），包括由永磁体（3）形成的多个交变磁极，所述永磁体（3）规则地分布在所述转子的磁体（2）的周向部分（5）和中心部分（6）之间，并且限定圆周极部分 （7）。 极部分具有预定的极间距（Thetarho）并且包括形成叶片的径向部分（8）。 叶片形成的径向部分部分地覆盖磁体，以使得径向穿过每个极部分的有用磁通（PhiU）最大化并且使流过圆周部分的泄漏磁通最小化。 极点可以具有预定的极重叠角（Thetar），以使最大化有用磁通（PhiU）并使漏磁通（PhiL）最小化，所述重叠角（Thetar）是凸角的视角 （8）从转子的轴线上的点。

公开(公告)号：US20140312746A1

公开(公告)日：2014-10-23

申请号：US14258499

申请日：2014-04-22

Applicant: Denso Corporation

Inventor： Makoto TANIGUCHI

IPC: H02K5/04 ,  H02K11/00

CPC classification number: H02K11/21 ,  H02K5/04 ,  H02K5/15 ,  H02K11/215 ,  H02K29/03 ,  H02K29/06 ,  H02K29/08 ,  H02K2201/03 ,  H02K2213/03

Abstract: A motor includes a stator core fitted to a cylindrical portion of a case, a rotor core being rotatable in the stator core, soft magnetic poles radially extending from the rotor core, and magnet poles disposed between the soft magnetic poles. The case includes a bottom portion having a ring-shaped plate portion, a protrusion portion, and a bearing-supporting portion extending from the protrusion portion. A condition that L2≧t and a condition that L1≧L2 are met, wherein t represents a thickness of the bottom portion, L1 represents a distance in an axial direction between a side surface of the ring-shaped plate portion close to the stator core and a protrusion end of the protrusion portion close to the rotor core, and L2 represents a distance in the axial direction between the side surface and an end surface of a bearing opposite to the rotor core.

Abstract translation: 电动机包括嵌合于壳体的圆筒部的定子铁心，能够在定子铁芯中旋转的转子铁芯，从转子铁心径向延伸的软磁极以及设置在软磁极之间的磁极。 壳体包括具有环形板部分，突出部分和从突起部分延伸的支承部分的底部。 满足L2≥t的条件和满足L1≥L2的条件，其中t表示底部的厚度，L1表示环形板部分靠近定子芯的侧表面之间的轴向距离 突出部的突出端靠近转子铁心，L2表示与转子铁心相反的轴承的侧面和端面之间的轴向方向的距离。

公开(公告)号：US20140292130A1

公开(公告)日：2014-10-02

申请号：US14117275

申请日：2012-05-09

Applicant: He Chen

Inventor： He Chen

IPC: H02K1/27

CPC classification number: H02K1/27 ,  H02K1/06 ,  H02K16/00 ,  H02K21/12 ,  H02K2201/03

Abstract: The present invention provides an anomalous electric machinery including an armature component and a magnetic pole component which perform a relative movement around a common axis. The armature component and the magnetic pole component constitute a magneto-electricity system unit which can form an axisymmetric anomalous curved shape around the common axis. The axisymmetric anomalous curved shape of the magneto-electricity system unit is not a plane that is perpendicular to the common axis or appears to be approximately perpendicular to the common axis. The present invention innovates in the structure and the structure and shape of the magneto-electricity system unit to adapt to the requirements of special application space and to raise space utilization rate.

Abstract translation: 本发明提供一种异常电动机械，其包括执行围绕公共轴线的相对运动的电枢部件和磁极部件。 电枢部件和磁极部件构成可以在公共轴线周围形成轴对称异常弯曲形状的磁电系统单元。 磁电系统单元的轴对称异常弯曲形状不是垂直于公共轴的平面，或者似乎与公共轴近似垂直。 本发明创新了磁电系统单元的结构和结构，形状，适应了特殊应用空间的要求，提高了空间利用率。

公开(公告)号：US20140167557A1

公开(公告)日：2014-06-19

申请号：US14109113

申请日：2013-12-17

Applicant: LG INNOTEK CO., LTD.

Inventor： Yong Chul KIM

IPC: H02K1/16

CPC classification number: H02K1/165 ,  H02K2201/03

Abstract: Provided is a motor. The motor includes a stator that includes a stator core and a coil that is wound around the stator core, and a rotor that is rotatably disposed in the stator, wherein the stator core includes a plurality of teeth that are radially formed along an inner circumferential surface of the stator core, a plurality of shoes that extend in a circumferential direction from both sides of an end of each of the plurality of teeth, and a tip portion that extends in the circumferential direction from an end of each of the plurality of shoes to contact a tip portion of an adjacent tooth.

Abstract translation: 提供电机。 电动机包括定子，该定子包括定子铁芯和卷绕在定子铁芯上的线圈，以及可转动地设置在定子中的转子，其中定子铁心包括沿着内周面径向形成的多个齿 定子芯的多个鞋，从多个齿的每一个的端部的两侧沿圆周方向延伸的多个鞋，以及从所述多个鞋的每一个的端部沿圆周方向延伸的尖端部分， 接触相邻牙齿的尖端部分。

公开(公告)号：US20140139947A1

公开(公告)日：2014-05-22

申请号：US13804726

申请日：2013-03-14

Applicant: NIDEC CORPORATION

Inventor： Hiroyuki ABE

IPC: H02K1/14

CPC classification number: H02K1/14 ,  G11B19/2009 ,  H02K1/146 ,  H02K3/18 ,  H02K21/22 ,  H02K29/03 ,  H02K2201/03

Abstract: A spindle motor of a disk drive apparatus includes a base unit, a stator core, a covered cylindrical rotor hub, a rotor magnet, and a bearing mechanism. The height of the stator core in an axial direction is about 50% or more and about 70% or less of the height of the stator. A torque constant Kt of torque generated between a stator and a rotor magnet is about 4 mN·m/A or more and about 6 mN·m/A or less. A motor constant Km is about 2 mN·m/(A·√Ω) or more and about 4 mN·m/(A·√Ω) or less.

Abstract translation: 盘驱动装置的主轴电动机包括基座单元，定子铁心，有盖圆柱形转子轮毂，转子磁铁和轴承机构。 定子铁芯在轴向上的高度约为定子高度的50％以上且约70％以下。 在定子和转子磁体之间产生的扭矩的转矩常数Kt为约4mN·m / A以上且约6mN·m / A以下。 电动机常数Km约为2mN·m /（A·√＆OHgr）以上且约4mN·m /（A·√＆OHgr））以下。