公开(公告)号：US08044547B2

公开(公告)日：2011-10-25

申请号：US12312792

申请日：2007-11-15

Applicant: Fumitoshi Yamashita ,  Hiroshi Murakami ,  Yukihiro Okada ,  Kiyomi Kawamura

Inventor： Fumitoshi Yamashita ,  Hiroshi Murakami ,  Yukihiro Okada ,  Kiyomi Kawamura

IPC: H02K1/27 ,  H02K15/03

CPC classification number: H02K1/278 ,  H01F1/0578 ,  H01F1/059 ,  H02K15/03 ,  H02K2201/06

Abstract: In a radial-direction gap type magnet motor, when an energy density increases, a direction change Mθ/φp of a static magnetic field with respect to a mechanic angle between different poles increases in an exponential manner and thus to decrease a cogging torque of the motor is not compatible to increase a torque density. In order to solve the problem, assuming that φt denotes a mechanic angle of a stator iron core teeth, φp denotes a mechanical angle of a magnetic pole, and Mθ denotes an angle of a static magnetic field with respect to a circumferential tangential line of a radial magnetic pole center, a radial-direction type magnet motor in which φt

Abstract translation: 在径向方向间隙型磁体电动机中，当能量密度增加时，相对于不同极之间的机械角度的静磁场的方向变化M＆amp; php; p以指数方式增加，从而减小齿槽 电机的转矩不相容以增加转矩密度。 为了解决这个问题，假设＆phgr t表示定子铁芯齿的机械角，p表示磁极的机械角度，M表示。 表示相对于径向磁极中心的圆周切线的静磁场的角度，其中＆php; p，M＆amp; thetas的径向方向型磁体电动机; 在磁极中心区域为75〜90°，在＆lt; p×0.1°的磁极端区域满足M＆amp;＆phgr; p＆nlE; 7，并且静态磁场产生源被配置为 提供能量密度（BH）max≥150kJ/ m3的磁各向异性磁极。

公开(公告)号：US20110175481A1

公开(公告)日：2011-07-21

申请号：US12977856

申请日：2010-12-23

Applicant: Kouji Kebukawa

Inventor： Kouji Kebukawa

IPC: H02K21/14 ,  H02K1/06

CPC classification number: H02K29/03 ,  H02K37/18 ,  H02K2201/06

Abstract: The permanent magnet type rotary machine is capable of reducing cogging torque even if permanent magnets are displaced in the axial direction and which is capable of reducing production cost and increasing torque. At least a stator unit of a first phase out of two stator units, which are stacked with a phase difference of (360°/(2P)), is stacked m-th, from one end of the stack of the stator units, to face magnetic poles of one of the permanent magnets. The other stator unit of the second phase, whose excitation cycle is shifted ¼ cycle with respect to that of the stator unit of the first phase, is stacked ((nQ/2)+m)-th, from the one end of the stack, to face magnetic poles of another permanent magnet. Note that, P is number of the magnetic poles of the permanent magnet; m is an integer of (nQ/2) or less, and one or more; Q is an even number of two or more; and n is an integer of one or more, and the product of n×Q is an integer of four or more.

Abstract translation: 永磁式旋转机械即使永久磁铁在轴向移动，也能够减少齿槽转矩，并且能够降低生产成本并提高扭矩。 从定子单元的堆叠的一端向m层叠第二相的相位差（360°/（2P））的两个定子单元中的第一相的定子单元， 一个永磁体的面磁极。 相对于第一相的定子单元的励磁周期相对于第二相的定子单元的第二相的另一个定子单元从堆叠的一端堆叠（（nQ / 2）+ m） 面对另一个永久磁铁的磁极。 注意，P是永磁体的磁极数; m是（nQ / 2）以下的整数，以及一个以上的整数; Q是两个以上的偶数; n为1以上的整数，n×Q的乘积为4以上的整数。

公开(公告)号：US20110175480A1

公开(公告)日：2011-07-21

申请号：US13010128

申请日：2011-01-20

Applicant: James Kenneth Booth ,  Soeren Gundtoft

Inventor： James Kenneth Booth ,  Soeren Gundtoft

IPC: H02K1/28 ,  H02K1/27

CPC classification number: H02K1/278 ,  H02K7/1838 ,  H02K2201/06 ,  Y02E10/725

Abstract: A magnetic component part for a rotor assembly of an electromechanical transducer is provided. The magnetic component part includes a base element having a first side and an opposing second side, a permanent magnet, attached to the base element at the first side, and a mounting structure fixed to the base element at the second side and adapted to be mechanically connected to a support structure of the rotor assembly. The permanent magnet is located in an offset position with respect to a central axis of the mounting structure, which central axis extends from the mounting structure through the second side to the first side. A rotor assembly, an electromechanical transducer and a wind turbine, which are all equipped with at least four magnetic component parts are also provided as well as a method for manufacturing a rotor assembly including at least four magnetic component parts.

Abstract translation: 提供了一种用于机电换能器的转子组件的磁性部件。 磁性部件包括具有第一侧和相对的第二侧的基体元件，在第一侧附接到基体元件的永磁体，以及在第二侧固定到基体元件并适于机械地安装的安装结构 连接到转子组件的支撑结构。 永磁体相对于安装结构的中心轴线位于偏移位置，该中心轴线从安装结构通过第二侧延伸到第一侧。 还提供了全部配备有至少四个磁性部件的转子组件，机电换能器和风力涡轮机，以及用于制造包括至少四个磁性部件的转子组件的方法。

公开(公告)号：US07884522B1

公开(公告)日：2011-02-08

申请号：US11925661

申请日：2007-10-26

Applicant: John Petro ,  Ken G. Wasson ,  Jeremy F. Mayer

Inventor： John Petro ,  Ken G. Wasson ,  Jeremy F. Mayer

IPC: H02K1/12

CPC classification number: H02K1/14 ,  H02K16/00 ,  H02K21/12 ,  H02K2201/06 ,  H02K2201/12

Abstract: Embodiments of the invention relate generally to electric motors, alternators, generators and the like, and more particularly, to stator structures and rotor-stator structures for motors that can be configured to, for example, reduce detent.

Abstract translation: 本发明的实施例一般涉及电动机，交流发电机，发电机等，更具体地，涉及用于例如可以被配置为减少制动器的用于电动机的定子结构和转子 - 定子结构。

公开(公告)号：US20100283348A1

公开(公告)日：2010-11-11

申请号：US12811852

申请日：2009-01-30

Applicant: Masayuki Okubo

Inventor： Masayuki Okubo

IPC: H02K1/27

CPC classification number: H02K29/03 ,  H02K1/278 ,  H02K2201/06 ,  H02K2213/03

Abstract: Provided is a brushless motor of a 2P3S×n structure, in which a ratio (W) of a circumferential width (Wm) of each of magnets (16a to 16c) to a length (Wp) of a chord formed between endpoints of an arc with a center angle θp=360°/pole-number 3n, the arc being included in an inner-diameter circle C2 of each of the magnets (16a to 16c), is in a range of 0.76

Abstract translation: 本发明提供一种2P3S×n结构的无刷电动机，其中，各磁体（16a〜16c）的周向宽度（Wm）与弧的端点之间形成的弦的长度（Wp）的比（W） 每个磁体（16a至16c）的内径圆C2中包含的中心角度和角度p = 360°/极数3n在0.76

公开(公告)号：US20100251539A1

公开(公告)日：2010-10-07

申请号：US12817018

申请日：2010-06-16

Applicant: Daniel Gizaw ,  David M. Erdman ,  Joseph E. Miller ,  Girma Desta

Inventor： Daniel Gizaw ,  David M. Erdman ,  Joseph E. Miller ,  Girma Desta

IPC: H02K15/03

CPC classification number: H02K21/22 ,  H02K1/16 ,  H02K1/2786 ,  H02K7/1823 ,  H02K7/183 ,  H02K7/1838 ,  H02K15/03 ,  H02K29/03 ,  H02K2201/06 ,  H02K2213/12 ,  Y10T29/49009 ,  Y10T29/49012

Abstract: A method for assembling a direct drive generator assembly includes the steps of placing a rotor over a stator, leaving a gap therebetween. A magnetic hub is assembled using adjacent columns of magnets having opposed orientation, and placed in the air gap. Application of an input torque to generate cogging torque in first direction that offsets coggery torque in second direction.

Abstract translation: 用于组装直接驱动发电机组件的方法包括以下步骤：将转子放置在定子上，在它们之间留有间隙。 使用具有相反取向的相邻的磁体列组装磁性集线器，并将其放置在气隙中。 施加输入扭矩以在第一方向产生齿槽转矩，以抵消第二方向上的绞合扭矩。

公开(公告)号：US20100133939A1

公开(公告)日：2010-06-03

申请号：US12580118

申请日：2009-10-15

Applicant: Yoshiaki Takemoto ,  Seiya Yokoyama ,  Yoji Yamada ,  Shigemasa Kato ,  Yoko Tateishi

Inventor： Yoshiaki Takemoto ,  Seiya Yokoyama ,  Yoji Yamada ,  Shigemasa Kato ,  Yoko Tateishi

IPC: H02K21/14

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

Abstract: A motor including a stator and a rotor is disclosed. The rotor includes a first unit and a second unit. The first unit includes an N-pole first magnet and an S-pole second magnet. The first and the second magnets are alternately arranged along a circumferential direction of the rotor at equal angular intervals to form magnetic pole portions. The second unit includes an N-pole or S-pole third magnet and a salient pole arranged in the rotor core. The salient pole functions as a magnetic pole that differs from the third magnet. The third magnet and the salient pole are alternately arranged along the circumferential direction of the rotor to form magnetic pole portions. The number of magnetic pole portions of the second unit is the same as the number of magnetic pole portions of the first unit. The third magnet and the magnet of the first unit having the same pole as the third magnet are aligned in the axial direction of the rotor.

Abstract translation: 公开了一种包括定子和转子的电动机。 转子包括第一单元和第二单元。 第一单元包括N极第一磁体和S极第二磁体。 第一和第二磁体以等角度间隔沿着转子的圆周方向交替布置以形成磁极部。 第二单元包括设置在转子芯中的N极或S极第三磁体和凸极。 凸极用作与第三磁体不同的磁极。 第三磁体和凸极沿转子的圆周方向交替布置以形成磁极部分。 第二单元的磁极部的数量与第一单元的磁极部的数量相同。 具有与第三磁体相同的极的第一单元的第三磁体和磁体在转子的轴向上对准。

公开(公告)号：US20100066192A1

公开(公告)日：2010-03-18

申请号：US12312792

申请日：2007-11-15

Applicant: Fumitoshi Yamashita ,  Hiroshi Murakami ,  Yukihiro Okada ,  Kiyomi Kawamura

Inventor： Fumitoshi Yamashita ,  Hiroshi Murakami ,  Yukihiro Okada ,  Kiyomi Kawamura

IPC: H02K1/27

CPC classification number: H02K1/278 ,  H01F1/0578 ,  H01F1/059 ,  H02K15/03 ,  H02K2201/06

Abstract: In a radial-direction gap type magnet motor, when an energy density increases, a direction change Mθ/φp of a static magnetic field with respect to a mechanic angle between different poles increases in an exponential manner and thus to decrease a cogging torque of the motor is not compatible to increase a torque density. In order to solve the problem, assuming that φt denotes a mechanic angle of a stator iron core teeth, φp denotes a mechanical angle of a magnetic pole, and Mθ denotes an angle of a static magnetic field with respect to a circumferential tangential line of a radial magnetic pole center, a radial-direction type magnet motor in which φt

Abstract translation: 在径向方向间隙型磁体电动机中，当能量密度增加时，相对于不同极之间的机械角度的静磁场的方向变化M＆amp; php; p以指数方式增加，从而减小齿槽 电机的转矩不相容以增加转矩密度。 为了解决这个问题，假设＆phgr t表示定子铁芯齿的机械角，p表示磁极的机械角度，M表示。 表示相对于径向磁极中心的圆周切线的静磁场的角度，其中＆php; p，M＆amp; thetas的径向方向型磁体电动机; 在磁极中心区域为75〜90°，在＆lt; p×0.1°的磁极端区域满足M＆amp;＆phgr; p＆nlE; 7，并且静态磁场产生源被配置为 提供能量密度（BH）max≥150kJ/ m3的磁各向异性磁极。

公开(公告)号：US20100052466A1

公开(公告)日：2010-03-04

申请号：US12374147

申请日：2007-07-18

Applicant: Rolf Vollmer ,  Marcus Ziegler

Inventor： Rolf Vollmer ,  Marcus Ziegler

IPC: H02K1/06

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

Abstract: According to the invention, the torque ripple of electrical machines is supposed to be further reduced. For this purpose, it is provided to dispose the magnetic poles, for example, on the surface of a rotor in a plurality of sections (A1, A2) at different angles. The result are helix angles (β1, β2), which have different amounts. Also more than two different helix angles, up to a continuous course of the boundary lines (G4) between the poles, can be implemented.

Abstract translation: 根据本发明，电机的扭矩波动应该进一步降低。 为此，提供了例如以多个部分（A1，A2）以不同角度将磁极配置在转子的表面上。 结果是具有不同量的螺旋角（＆bgr; 1，＆bgr; 2）。 也可以实现多于两个不同的螺旋角，直到两极之间的边界线（G4）的连续过程。

公开(公告)号：US20100026128A1

公开(公告)日：2010-02-04

申请号：US12512890

申请日：2009-07-30

Applicant: Dan M. Ionel

Inventor： Dan M. Ionel

IPC: H02K1/27

CPC classification number: H02K1/2766 ,  H02K1/276 ,  H02K2201/06

Abstract: An electric machine includes a stator and a rotor core including a first rotor portion positioned adjacent the stator and having an outside diameter. The first rotor portion includes a plurality of elongated slots that define a plurality of poles. The electric machine also includes a plurality of magnets. Each of the plurality of magnets is positioned within one of the slots and arranged such that each of the plurality of poles has a magnetic arc length that is different than a magnetic arc length of any adjacent pole.

Abstract translation: 电机包括定子和转子芯，转子芯包括邻近定子定位并具有外径的第一转子部分。 第一转子部分包括限定多个极的多个细长槽。 电机还包括多个磁体。 多个磁体中的每一个位于一个槽内，并且布置成使得多个磁极中的每一个具有与任何相邻极的磁弧长度不同的磁弧长度。