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：US20140225576A1

公开(公告)日：2014-08-14

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 system includes a first proximity sensor and a controller. The first proximity sensor is 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. The controller is 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 airgaps and a second instantaneous airgap of the first plurality of airgaps. The first plurality of instantaneous airgaps includes a first plurality of measurements of gaps between the stator and the plurality of rotor poles when the rotor is rotating.

Abstract translation: 系统包括第一接近传感器和控制器。 第一接近传感器设置在定子的第一位置，并且被配置为传送代表第一接近传感器和多个转子极之间的第一距离的第一信号。 控制器通信地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气隙中的第一瞬时气隙与第一多个气隙的第二瞬时气隙之间的差。 第一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间隙的第一多个测量值。

公开(公告)号：US20140192439A1

公开(公告)日：2014-07-10

申请号：US14208003

申请日：2014-03-13

Applicant: Nidec Corporation

Inventor： Shuji IWASAKI ,  Yoichi SEKII ,  Takehito TAMAOKA ,  Hideki NISHIMURA ,  Kazuto MIYAJIMA ,  Takuro IGUCHI ,  Kazuhiro SATO ,  Takeyuki SHUTO

IPC: H02K7/08 ,  G11B19/20

CPC classification number: H02K1/27 ,  F16C17/107 ,  F16C33/103 ,  F16C33/107 ,  F16C33/745 ,  F16C2226/12 ,  F16C2226/40 ,  F16C2226/60 ,  F16C2370/12 ,  G11B19/2036 ,  H02K5/1677 ,  H02K7/086 ,  H02K2201/03

Abstract: A motor includes a shaft component, an upper plate portion, a lower plate portion, and a sleeve portion. The shaft component includes an inner shaft portion and an outer shaft portion. The sleeve portion is disposed between the upper plate portion and the lower plate portion. A radial gap is defined between the sleeve portion and the outer shaft portion. A fixing range in which the outer shaft portion and the inner shaft portion radially overlap is provided. At least a portion in an axial direction of the fixing range radially overlaps with an existing range in the axial direction of the radial gap.

Abstract translation: 电动机包括轴部件，上板部分，下板部分和套筒部分。 轴部件包括内轴部分和外轴部分。 套筒部分设置在上板部分和下板部分之间。 径向间隙限定在套筒部分和外轴部分之间。 提供外轴部和内轴部径向重叠的固定范围。 固定范围的轴向的至少一部分与径向间隙的轴向的现有范围径向重叠。

公开(公告)号：US20140184174A1

公开(公告)日：2014-07-03

申请号：US14125828

申请日：2012-05-24

Applicant: Volker Diedrichs

Inventor： Volker Diedrichs

IPC: H02P9/14

CPC classification number: H02P9/14 ,  F03D7/0272 ,  H02K7/09 ,  H02K7/1838 ,  H02K19/26 ,  H02K2201/03 ,  H02K2213/03 ,  H02K2213/09 ,  H02P29/50 ,  H02P2101/15 ,  Y02E10/723

Abstract: The present invention concerns a method of controlling a wind power installation having a generator with a stator, a pole wheel with at least two rotor poles with a respective pole winding for producing a magnetic field guided in the respective rotor pole, and an air gap between the stator and the pole wheel, including the steps— controlling a respective exciter current through each pole winding,— varying at least one of the exciter currents relative to at least one further one of the exciter currents, and/or— varying at least one of the exciter currents in dependence on the position of the pole wheel in relation to the stator.

Abstract translation: 本发明涉及一种控制风力发电设备的方法，该风力发电机组具有带有定子的发电机，具有至少两个转子极的极轮，具有相应的磁极绕组，用于产生在相应的转子磁极中引导的磁场， 所述定子和所述极轮包括以下步骤：控制通过每个极绕组的相应的激励器电流;相对于所述激励器电流中的至少一个激励器电流改变至少一个激励器电流，和/或改变至少一个 根据极轮相对于定子的位置，激励器的电流。

公开(公告)号：US08737017B1

公开(公告)日：2014-05-27

申请号：US13804726

申请日：2013-03-14

Applicant: Nidec Corporation

Inventor： Hiroyuki Abe

IPC: G11B19/20

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。

公开(公告)号：US20140070655A1

公开(公告)日：2014-03-13

申请号：US14025074

申请日：2013-09-12

Applicant: SIEMENS AKTIENGESELLSCHAFT

Inventor： Wolfgang Schneider ,  Rolf Vollmer

IPC: H02K1/27

CPC classification number: H02K1/272 ,  H02K1/2766 ,  H02K21/14 ,  H02K2201/03

Abstract: A permanently excited synchronous machine includes a stator; a winding system arranged in grooves of a laminated core of the stator and forming winding overhangs on end faces of the laminated core, and a rotor connected in fixed rotative engagement to the shaft and having ferrite magnets which extend axially beyond the end faces of the laminated core. The rotor electromagnetically interacts with the stator across an air gap there between during operation of the permanently excited synchronous machine to cause a rotation about an axis of rotation. A flux concentration element is provided radially across each of the ferrite magnets of a magnetic pole and bundles magnetic field lines of the ferrite magnet onto an axial length of the laminated core of the stator. The flux concentration elements and held by a fixing element on the ferrite magnets of a magnetic pole.

Abstract translation: 永磁同步电机包括定子; 绕组系统，其布置在定子的层叠铁心的槽中，并且在层叠铁心的端面上形成绕组悬伸;以及转子，其以固定的旋转接合方式连接到轴上，并具有轴向延伸超过层叠的端面的铁氧体磁体 核心。 在永久激励的同步电机的操作期间，转子与定子横跨其间的空气间隙电磁地相互作用以引起围绕旋转轴的旋转。 在磁极的铁氧体磁体的每一个上径向设置磁通浓度元件，并将铁氧体磁体的磁场线束捆扎在定子的层叠磁芯的轴向长度上。 磁通浓度元件并由固定元件保持在磁极的铁氧体磁体上。

公开(公告)号：US20140049127A1

公开(公告)日：2014-02-20

申请号：US14034088

申请日：2013-09-23

Applicant: Elberto Berdut-Teruel

Inventor： Elberto Berdut-Teruel

IPC: H02K7/14

CPC classification number: H02K7/14 ,  H02K7/11 ,  H02K16/00 ,  H02K49/04 ,  H02K2201/03 ,  H02K2201/15 ,  H02K2213/09

Abstract: A dynamically induced magnetic hysteresis apparatus is described which allows efficient adjustable power coupling without direct mechanical attachment or linking. Adjustment of spatial and penetration gaps are adjusted to vary the ratio of rotation.

Abstract translation: 描述了一种动态诱导磁滞设备，其允许有效的可调节功率耦合而不需要直接的机械附接或连接。 调整空间和穿透间隙的调整以改变旋转比。

公开(公告)号：US20140021822A1

公开(公告)日：2014-01-23

申请号：US13945055

申请日：2013-07-18

Applicant: NIPPON PISTON RING CO., LTD

Inventor： Masafumi SAKAMOTO ,  Shigeyoshi SATO ,  Shunsuke TAKEGUCHI

IPC: H02K1/06

CPC classification number: H02K1/06 ,  H02K1/02 ,  H02K19/103 ,  H02K21/16 ,  H02K2201/03

Abstract: To realize a highly efficient rotating electrical machine having high torque at low cost by a reliable method. The inner rotor type rotating electrical machine including a stator core and a rotor core facing each other, and a gap provided in a recessed and projected state between the stator core and the rotor core, the rotating electrical machine being featured in that the stator core includes at least an armature and is configured by assembling a plurality of divided dust cores.

Abstract translation: 通过可靠的方法实现低成本的高扭矩高效旋转电机。 所述内转子型旋转电机包括定子铁芯和转子铁心，所述转子铁心和所述转子铁芯彼此面对，以及在所述定子铁心和所述转子铁心之间呈凹凸状态设置的间隙，所述旋转电机的特征在于， 至少一个衔铁，并且通过组装多个分开的灰尘芯构造。

公开(公告)号：US20130300124A1

公开(公告)日：2013-11-14

申请号：US13469777

申请日：2012-05-11

Applicant: Anthony Chobot ,  Tyler Mayer ,  Amir Mikhail ,  Michael Chartre ,  Frank Klein ,  Edwin Hahlbeck

Inventor： Anthony Chobot ,  Tyler Mayer ,  Amir Mikhail ,  Michael Chartre ,  Frank Klein ,  Edwin Hahlbeck

IPC: F03D9/00

CPC classification number: F03D9/25 ,  F03D15/20 ,  F03D80/70 ,  F05B2240/50 ,  H02K1/06 ,  H02K7/1838 ,  H02K21/22 ,  H02K2201/03 ,  Y02E10/725

Abstract: A direct drive wind turbine and an electric generator for the wind turbine are disclosed. The generator may include a stator, a rotor spaced apart from the stator and a main shaft defining an axis of rotation, the main shaft at least indirectly connected to the generator rotor. The generator may also include a bearing assembly supporting the main shaft and defining a center of deflection on the axis of rotation. The generator may further include a convexly profiled air gap defined between the stator and the rotor, the air gap having a maximum width in regions of maximum deflection and a minimum width in regions of minimum deflection, the regions of maximum and minimum deflection determined with respect to the center of deflection.

Abstract translation: 公开了用于风力涡轮机的直接驱动风力涡轮机和发电机。 发电机可以包括定子，与定子间隔开的转子和限定旋转轴线的主轴，主轴至少间接地连接到发电机转子。 发电机还可以包括支撑主轴并且在旋转轴线上限定偏心中心的轴承组件。 发电机还可以包括限定在定子和转子之间的凸形异形空气间隙，气隙在最小偏转区域中具有最大偏转区域和最小宽度的最大宽度，最大和最小偏移区域相对于 到偏心的中心。

公开(公告)号：US20130293042A1

公开(公告)日：2013-11-07

申请号：US13465082

申请日：2012-05-07

Applicant: Lubomir A. Ribarov ,  Jacek F. Gieras

Inventor： Lubomir A. Ribarov ,  Jacek F. Gieras

IPC: H02K9/02

CPC classification number: H02K7/083 ,  H02K9/12 ,  H02K9/19 ,  H02K2201/03

Abstract: An electrical machine, especially permanent magnet machine, is comprised of a stator and a rotor rotatable relative to the stator. The rotor and stator are separated from each other by an air gap. A boundary layer control maintains a desired boundary layer thickness in the air gap. The boundary layer control maintains optimal cooling, which minimizes the electrical machine's overall dimensions while maximizing its power density.

Abstract translation: 一种电机，特别是永久磁铁机，由定子和可相对于定子旋转的转子组成。 转子和定子通过气隙彼此分离。 边界层控制在气隙中保持期望的边界层厚度。 边界层控制保持最佳冷却，这最大限度地减少电机的整体尺寸，同时最大化其功率密度。