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    Thin and lightweight inner rotor motor and disk unit using the same
    31.
    发明申请
    Thin and lightweight inner rotor motor and disk unit using the same 失效
    薄而轻的内转子电机和磁盘单元使用相同

    公开(公告)号：US20020117925A1

    公开(公告)日：2002-08-29

    申请号：US10075159

    申请日：2002-02-14

    Applicant: Alps Electric Co., Ltd.

    Inventor： Tomokuni Wauke

    IPC: H02K001/00 ,  H02K003/00

    CPC classification number: H02K1/14 ,  G11B19/2009 ,  H02K1/185 ,  H02K2201/15

    Abstract: There are provided a rotor having plural magnetic poles disposed in a circumferential shape, and a stator including a stator core having plural magnetic pole teeth that are outside a circumference of the rotor and face the rotor, a coil being wound around each of the magnetic pole teeth, wherein the stator is provided in a range within 180 degrees with respect to a center of the rotor, the magnetic pole teeth are set so that the value of at least one of angles each formed by extensions of adjacent magnetic pole teeth is smaller than an angle formed by lines each connecting a tip center of one of adjacent magnetic pole teeth and a rotation center of the rotor.

    Abstract translation: 提供一种转子，其具有设置成圆周形状的多个磁极，以及定子，其具有定子铁心，该定子铁芯具有多个磁极齿，该磁极齿位于转子的圆周外面对转子，线圈缠绕在每个磁极 齿，其中定子相对于转子的中心设置在180度范围内，磁极齿被设定为使得由相邻磁极齿的延伸部形成的至少一个角度的值小于 由连接相邻的磁极齿的一个的尖端中心和转子的旋转中心的线形成的角度。

    Thin inner rotor motor and disk device using the motor
    32.
    发明申请
    Thin inner rotor motor and disk device using the motor 失效
    薄内转子电机和使用电机的磁盘装置

    公开(公告)号：US20020117910A1

    公开(公告)日：2002-08-29

    申请号：US10072482

    申请日：2002-02-07

    Applicant: Alps Electric Co., Ltd.

    Inventor： Tomokuni Wauke

    IPC: H02K007/00

    CPC classification number: H02K7/09 ,  G11B19/2009 ,  H02K41/03 ,  H02K2201/15

    Abstract: An inner rotor motor includes a rotor which has a plurality of circumferentially arranged magnetic poles and a stator which is positioned outside a circumference of the rotor and has a stator core which includes a plurality of magnetic pole teeth which face the rotor in an opposed manner and arranges coils for respective magnetic pole teeth. In such a constitution, the stator is arranged within a center angle of 180null with respect to a center of rotation of the rotor. Further, pitches of the magnetic pole teeth in the rotor circumferential direction along which respective rotor facing surfaces of the magnetic pole teeth are arranged are set smaller than pitches of the rotor in the rotor circumferential direction along which the magnetic poles of the rotor are arranged.

    Abstract translation: 内转子电动机包括具有多个周向布置的磁极的转子和位于转子的圆周外部的定子，并且具有定子芯，该定子芯包括相对的面对转子的多个磁极齿，以及 为相应的磁极齿排列线圈。 在这种结构中，定子相对于转子的旋转中心配置在180°的中心角度内。 此外，设置磁极齿各自的转子相对表面的转子圆周方向上的磁极齿的间距设定为小于转子周向上的转子的间距，沿转子圆周方向排列有转子的磁极。

    Electric motor with combined permanent and electromagnets
    33.
    再颁专利
    Electric motor with combined permanent and electromagnets 失效
    具有组合永磁和电磁铁的电动机

    公开(公告)号：USRE37027E1

    公开(公告)日：2001-01-23

    申请号：US08576463

    申请日：1995-12-21

    Applicant: Vilmos Török

    Inventor： Vilmos Török

    IPC: H02K3702

    CPC classification number: H02K29/03 ,  H02K19/06 ,  H02K41/03 ,  H02K2201/15

    Abstract: A rotary electric motor has a stator core (1) with salient poles (4, 3), some of them ferromagnetic and some of them permanent-magnetic, which are spaced-apart and which are all simultaneously magnetizable by means of a magnetizing winding (5A, 5B). The rotor core has either reluctance poles (7) with intervening pole gaps and constant pole pitch, or permanent-magnetic poles (10) with constant pole pitch and without intervening pole gaps, alternating poles being of opposite polarities. Each reluctance pole (7) or permanent-magnetic pole (10) has a width which over a portion of the pole corresponds to respectively one-half of or the full pole pitch and is smaller over the remaining portion so that each pole (7 or 10) has a part (7B or 10A) which projects in a direction common to all poles. The ferromagnetic and permanent-magnetic poles (3, 4) of the stator (1) have a width corresponding to the width of the narrower portion of the poles (7 or 10) of the rotor (2). The number of permanent-magnetic poles (3) and, optionally, also the number of ferromagnetic poles (4) of the stator (1) is smaller than the number of reluctance poles (7) or permanent-magnetic poles (10) of the rotor (2), the positioning of the poles being such that when the motor is running, all ferromagnetic stator poles (4) will be simultaneously positioned opposite respective rotor poles (7 or 10) and all permanent-magnetic stator poles (30 likewise are simultaneously positioned opposite respective rotor poles (7 or 10).

    Abstract translation: 旋转电动机具有带有凸极（4,3）的定子铁芯（1），其中有一些是铁磁体，其中一些是永久磁铁的，它们间隔开，并且可以通过磁化绕组同时磁化 图5A，5B）。 转子芯具有具有中间极间距和恒极间距的磁阻极（7），或具有恒定磁极间距而没有中间极间隙的永磁极（10），具有相反极性的交变极。 每个磁阻极（7）或永磁极（10）的宽度在极的一部分上分别对应于一半或全极节距，并且在其余部分上较小，使得每个极（7或 10）具有沿与所有极共同的方向突出的部分（7B或10A）。 定子（1）的铁磁和永磁极（3,4）具有对应于转子（2）的极（7或10）的较窄部分的宽度的宽度。 定子（1）的永久磁极（3）的数量，可选地还有铁磁极（4）的数量小于所述定子（1）的磁阻极数（7）或永磁极（10）的数量 转子（2）中，极的定位使得当电机运行时，所有铁磁定子极（4）将同时位于相应的转子极（7或10）的方向，所有永磁定子极（30同样为 同时定位在相应的转子极（7或10）的两侧。

    Motor
    36.
    发明授权
    Motor 有权
    发动机

    公开(公告)号：US5973426A

    公开(公告)日：1999-10-26

    申请号：US68770

    申请日：1998-09-28

    Applicant: Hiroyasu Fujinaka ,  Hiroyoshi Teshima ,  Kouji Kuyama ,  Miyuki Furuya

    Inventor： Hiroyasu Fujinaka ,  Hiroyoshi Teshima ,  Kouji Kuyama ,  Miyuki Furuya

    IPC: H02K1/14 ,  H02K1/27 ,  H02K3/52 ,  H02K5/167 ,  H02K7/06 ,  H02K7/08 ,  H02K11/00 ,  H02K21/16 ,  H02K37/10

    CPC classification number: H02K7/063 ,  H02K1/14 ,  H02K1/146 ,  H02K1/148 ,  H02K1/2733 ,  H02K11/33 ,  H02K21/16 ,  H02K5/1672 ,  H02K7/061 ,  H02K2201/06 ,  H02K2201/15 ,  H02K3/522 ,  H02K7/08

    Abstract: A small motor for use in an information-communication appratus, an audio-visual apparatus or the like, and a motor for use in a portable pager and a portable telephone or the like for generating vibrations to be transmitted to a human body, the motors being efficient, small and thin in size, and having a high degree of freedom when mounted on an apparatus. To realize the motor as described above, K pieces of (K indicating any integer greater than one) magnetic units (4a, 4b, 4c) having N and S poles magnetized alternately are mounted on a rotor in a circumferential direction, and K magnetic units are axially stacked in K stages and integrally retained on a shaft (6), and this rotor is rotatably supported on a pair of bearings (9a, 9b). Cores (1a, 1b, 1c) each have a salient pole (7a, 7b, 7c) wound around with coils (3a, 3b, 3c) in K stages so as to correspond to each of the magnetic units. The magnetized position of the N and S poles of the magnetic unit at each stage deviates relative to one another in a circumferential direction so as to set the phase of induced voltage generated on the salient pole wound around with the coil in each stage to a phase suitable for rotating a magnet unit corresponding to a coil in that stage.

    Abstract translation: PCT No.PCT / JP96 / 03338 Sec。 371日期：1998年9月28日 102（e）1998年9月28日PCT PCT 1996年11月14日PCT公布。 公开号WO97 / 18616 PCT 日期1997年5月22日用于信息通信设备，视听设备等的小型电动机以及用于便携式寻呼机和便携式电话机等的用于产生要传送给人的振动的电动机 电机高效，体积小，体积小，并且在安装在设备上时具有高度的自由度。 为了实现如上所述的电动机，具有交替地磁化的N和S极的K个（K表示大于1的整数）的磁性单元（4a，4b，4c）沿圆周方向安装在转子上，K个磁性单元 轴向堆叠在K级中并整体保持在轴（6）上，该转子可旋转地支撑在一对轴承（9a，9b）上。 芯体（1a，1b，1c）各自具有在K个级中缠绕有线圈（3a，3b，3c）的凸极（7a，7b，7c），以对应于每个磁性单元。 每个阶段的磁性单元的N极和S极的磁化位置在圆周方向上相对于彼此偏移，以将在每个级的线圈缠绕的凸极上产生的感应电压的相位设定为相位 适于在该阶段中旋转对应于线圈的磁体单元。

    MOTOR ROTOR STRUCTURE AND MOTOR
    38.
    发明公开
    MOTOR ROTOR STRUCTURE AND MOTOR 审中-公开

    公开(公告)号：US20240162768A1

    公开(公告)日：2024-05-16

    申请号：US18509809

    申请日：2023-11-15

    Applicant: Splash Pool & Spa, Inc.

    Inventor： Huaiping Wang ,  Hongliang Yang ,  Haidong Ye ,  Wenfeng Ge

    IPC: H02K1/2706

    CPC classification number: H02K1/2706 ,  H02K2201/06 ,  H02K2201/15

    Abstract: A motor rotor structure includes a rotor irone core composed of a rotor section. The circumference of the rotor section is uniformly distributed with magnetic tile grooves. The magnetic tile grooves are located near the axis of the rotor section, and there are two limit edges that contract towards the axis of the rotor section. The two limit edges are connected to two convex edges extending towards the periphery of the rotor section. Between the two convex edges, there are limit protrusions that protrude towards the periphery of the rotor section. A limiting protrusion enables the permanent magnet to be stably placed in the magnetic tile groove, limiting its displacement during rotation and maintains the stability of the motor.

    CURRENT REGULATORS FOR DUAL WOUND SYNCHRONOUS MOTOR DRIVES
    39.
    发明公开
    CURRENT REGULATORS FOR DUAL WOUND SYNCHRONOUS MOTOR DRIVES 审中-公开

    公开(公告)号：US20240128821A1

    公开(公告)日：2024-04-18

    申请号：US18544084

    申请日：2023-12-18

    Applicant: Steering Solutions IP Holding Corporation

    Inventor： Prerit Pramod

    IPC: H02K3/28 ,  H02P21/00 ,  H02P25/22

    CPC classification number: H02K3/28 ,  H02P21/0003 ,  H02P25/22 ,  H02K2201/15

    Abstract: A method of controlling a dual wound synchronous machine (DWSM) includes: determining virtual current commands based on a current command associated with each of two winding sets of the DWSM; determining virtual half-motor currents by applying a mathematical transformation on measured output currents; determining half-motor difference currents based on differences between the corresponding virtual current command and the virtual half-motor current; calculating forward path voltage commands based on the corresponding difference currents and using first and second gain factors; determining feedback voltage commands by applying third and fourth gain factors to the virtual half-motor currents; determining virtual final voltage commands based on the corresponding forward path and feedback voltage commands; determining final voltage commands by applying a second mathematical transformation to the virtual final voltage commands; commanding, based on the final voltage commands, inverters to apply corresponding voltages to the two winding sets and thereby generating the output currents.

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