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    Motor with reduced clogging torque incorporating stator salient poles and rotor magnetic poles
    511.
    发明授权
    Motor with reduced clogging torque incorporating stator salient poles and rotor magnetic poles 失效
    具有减少堵塞扭矩的电机，结合定子凸极和转子磁极

    公开(公告)号：US6104117A

    公开(公告)日：2000-08-15

    申请号：US983146

    申请日：1998-02-25

    Applicant: Tomokazu Nakamura ,  Ichiro Masago ,  Koichi Uchida

    Inventor： Tomokazu Nakamura ,  Ichiro Masago ,  Koichi Uchida

    IPC: H02K1/14 ,  H02K1/27 ,  H02K21/16 ,  H02K29/03 ,  H02K1/02 ,  H02K21/14

    CPC classification number: H02K29/03 ,  H02K1/148 ,  H02K21/16 ,  H02K2201/06

    Abstract: In the permanent magnet motor of the present invention, where P is an integer not smaller than one, the number of magnetic poles of a rotor (22) is set to 2P, and the number of salient poles of a stator field core (21) is set to 3P. The salient pole section (21a) of each stator field core (21) is provided with two supplemental grooves (24). A salient pole magnetic interpolar angle is 4.theta., such that two supplemental grooves (24) of each salient pole section (21a) are arranged in positions at angles of .theta. and 3.theta. with respect to the center of a winding slot (27) in the circumferential direction of the rotor. With this structure, a fundamental wave component of a clogging torque is removed and a permanent magnet motor having a low clogging torque is provided.

    Abstract translation: PCT No.PCT / JP97 / 01732 Sec。 371日期：1998年2月25日 102（e）日期1998年2月25日PCT 1997年5月23日PCT公布。 第WO97 / 45945号公报 日本1997年12月4日在本发明的永磁电动机中，P为1以上的整数时，转子（22）的磁极数为2P，定子的极极数 场芯（21）设定为3P。 每个定子磁场铁心（21）的凸极部分（21a）设有两个补充槽（24）。 凸极磁极间极角为4θ，使得每个凸极部分（21a）的两个补充槽（24）相对于绕组槽（27）的中心以θ和3θ的角度布置在 转子的圆周方向。 利用该结构，除去堵塞转矩的基波成分，提供具有低堵塞转矩的永磁电动机。

    Reluctance type synchronous motor
    513.
    发明授权
    Reluctance type synchronous motor 失效
    磁阻式同步电动机

    公开(公告)号：US5903080A

    公开(公告)日：1999-05-11

    申请号：US873919

    申请日：1997-06-12

    Applicant: Masayuki Nashiki ,  Akiyoshi Satake

    Inventor： Masayuki Nashiki ,  Akiyoshi Satake

    IPC: H02K1/22 ,  H02K19/10 ,  H02K29/03 ,  H02K19/02

    CPC classification number: H02K1/246 ,  H02K29/03 ,  H02K2201/06

    Abstract: A reluctance type synchronous motor comprises: a stator with a plurality of slots placed at an even pitch angle wherein stored inside each slot is a stator winding for creating stator magnetic poles with a predetermined phase alternating current being supplied thereto. A rotor sustained by a shaft and changing magnetic reluctance in its circumferential direction by inclusion inside of a plurality of magnetic isolating portions creates desired magnetic poles. At least one of the central angles between magnetic poles created at the rotor is shifted from the other central angles so that torque ripples during rotation can be reduced.

    Abstract translation: 磁阻型同步电动机包括：定子，其具有以均匀的倾斜角放置的多个槽，其中存储在每个槽内，是定子绕组，用于产生具有预定相位交变电流的定子磁极。 由轴保持的转子并且通过包含在多个磁隔离部内部而在其周向方向上改变磁阻产生期望的磁极。 在转子处产生的磁极之间的中心角中的至少一个中心角度从其他中心角度偏移，从而可以减少旋转期间的转矩波动。

    Motor with rotor and stator core paired interlocks
    514.
    发明授权
    Motor with rotor and stator core paired interlocks 失效
    电机带转子和定子芯配对互锁

    公开(公告)号：US5894182A

    公开(公告)日：1999-04-13

    申请号：US914100

    申请日：1997-08-19

    Applicant: Daniel M. Saban ,  James J. Holich ,  Harold C. Kingrey ,  Michael A. Cook ,  Peter J. Klug ,  Robert Sirois ,  Vijay P. Chahar

    Inventor： Daniel M. Saban ,  James J. Holich ,  Harold C. Kingrey ,  Michael A. Cook ,  Peter J. Klug ,  Robert Sirois ,  Vijay P. Chahar

    IPC: H02K1/18 ,  H02K1/06 ,  H02K1/26 ,  H02K15/02

    CPC classification number: H02K1/06 ,  H02K15/024 ,  H02K2201/06 ,  H02K2201/09

    Abstract: A motor rotor or stator core is formed of a plurality of stacked generally circular laminations. The stack defines at least one inner lamination having laminations positioned adjacent to both sides of the lamination. Each lamination has a predetermined number of circumferentially equally spaced slots or bar elements extending radially at about an edge thereof. The inner laminations include at least one interlocking projection formed in one of the surfaces at a predetermined radial distance from the center of the lamination. The laminations further define at least one projection receiving region formed therein to engage the projection when the laminations arc in the stacked formation. The projection receiving region is spaced from the interlocking projection by an angle .phi. that is a whole number multiple of .beta., where .beta. is an angle defined as a ratio of 360 degrees to the number of slots. A method for making the stacked core is also disclosed.

    Abstract translation: 电机转子或定子芯由多个堆叠的大体圆形的叠片形成。 该叠层限定了至少一个具有邻近叠片两侧定位的叠片的内叠片。 每个层压件具有预定数量的沿周向等间隔开的槽或在其边缘处径向延伸的杆元件。 内部叠片包括至少一个互锁突起，其形成在距离层压体的中心预定径向距离的一个表面中。 叠片进一步限定了形成在其中的至少一个突起接收区域，以便当层压体叠合在堆叠的地层中时与突起接合。 投影接收区域与互锁突起间隔一个角度phi，该角度是β的整数倍，其中β是360度与狭缝数之比定义的角度。 还公开了制造堆叠芯的方法。

    Motor and control for windshield wiper system
    516.
    发明授权
    Motor and control for windshield wiper system 失效
    电动和控制挡风玻璃刮水器系统

    公开(公告)号：US5818187A

    公开(公告)日：1998-10-06

    申请号：US449952

    申请日：1995-05-25

    Applicant: Jack Windfield Savage ,  John Riden Suriano

    Inventor： Jack Windfield Savage ,  John Riden Suriano

    IPC: B60S1/08 ,  H02K1/14 ,  H02K1/16 ,  H02K17/16 ,  H02P1/04

    CPC classification number: H02K17/16 ,  B60S1/08 ,  H02K1/14 ,  H02K1/16 ,  H02K2201/06 ,  Y10S318/02

    Abstract: The invention concerns an improved system for windshield wipers in vehicles. An induction motor is used, in which speed is accurately controlled by controlling frequency of power supplied to the motor. The induction motor may be of the consequent-pole type, which ordinarily does not produce sufficient torque. Addition of (a) auxiliary tooth slotting and (b) skew has raised the torque produced to acceptable levels. The invention includes a control system, which senses excess load on the motor, which occurs as the windshield dries, and reduces motor speed, subject to a minimum, in response.

    Abstract translation: 本发明涉及用于车辆中的挡风玻璃刮水器的改进系统。 使用感应电动机，其中通过控制提供给电动机的功率的频率来精确地控制速度。 感应电动机可以是后继极型，通常不产生足够的转矩。 （a）辅助齿槽和（b）歪斜将产生的转矩提高到可接受的水平。 本发明包括一种控制系统，该控制系统检测电动机上的过载，其随着挡风玻璃的干燥而发生，并且以最小的速度降低电动机的转速。

    Motor
    517.
    发明授权
    Motor 失效
    发动机

    公开(公告)号：US5760520A

    公开(公告)日：1998-06-02

    申请号：US778711

    申请日：1996-12-27

    Applicant: Masahiro Hasebe ,  Yasuo Yamaguchi

    Inventor： Masahiro Hasebe ,  Yasuo Yamaguchi

    IPC: H02K1/28 ,  H02K1/27 ,  H02K15/02 ,  H02K16/02 ,  H02K1/22 ,  H02K1/00 ,  H02K1/06

    CPC classification number: H02K1/278 ,  H02K2201/06

    Abstract: A motor has a stator and a rotor that is formed of two rotor parts fitted on a rotor shaft in a fashion preventing the rotor from rotating relative to the rotor shaft. The rotor parts carry permanent magnets arranged with a fixed pitch angle over their outer peripheral faces. The rotor shaft has a single key for engaging with both an engagement groove of the first rotor and an engagement groove of the second rotor. The engagement groove of each steel plate forming the rotor parts is formed in a position shifted 1/2 of the skew angle from the pole center of a given one of the permanent magnets. The steel plates of the first rotor part and the steel plates of the second rotor part face in opposite directions when fitted to the key of the rotor shaft, thereby providing the predetermined skew angle between the two rotor parts.

    Abstract translation: 电动机具有定子和转子，其以防止转子相对于转子轴旋转的方式由安装在转子轴上的两个转子部分形成。 转子部件携带在其外周面上以固定的俯仰角布置的永磁体。 转子轴具有用于与第一转子的接合槽和第二转子的接合槽相接合的单个键。 形成转子部件的每个钢板的接合槽形成为从给定的一个永磁体的磁极中心偏斜的偏斜角+ E，fra 1/2 + EE的位置。 当安装到转子轴的钥匙上时，第一转子部件的钢板和第二转子部件的钢板在相反的方向上面对，从而在两个转子部件之间提供预定的倾斜角度。

    Circuit, motor, and method generating a signal representing back EMF in an energized motor winding
    518.
    发明授权
    Circuit, motor, and method generating a signal representing back EMF in an energized motor winding 失效
    电路，电动机和方法产生表示在电动机绕组中的反电动势的信号

    公开(公告)号：US5696430A

    公开(公告)日：1997-12-09

    申请号：US469200

    申请日：1995-06-06

    Applicant: David M. Erdman ,  Eric R. Benedict

    Inventor： David M. Erdman ,  Eric R. Benedict

    IPC: F23N3/08 ,  F23N5/18 ,  H02K29/03 ,  H02P6/00 ,  H02P6/08 ,  H02P6/18 ,  H02P25/04 ,  H02P7/00

    CPC classification number: H02P25/04 ,  F23N3/082 ,  H02K29/03 ,  H02P6/085 ,  H02P6/182 ,  H02P6/26 ,  F23N2025/04 ,  F23N2025/06 ,  F23N2033/04 ,  F23N5/18 ,  H02K2201/06 ,  H02P6/08

    Abstract: A motor includes a stationary assembly and a rotatable assembly in magnetic coupling relation thereto. The stationary assembly includes a winding, the rotation of the rotatable assembly inducing a back EMF in the winding. A power supply for supplying a voltage across the winding drives a current through the winding. A back EMF sensor connected to the winding generates a back EMF signal representative of the back EMF induced in the winding during periods of time when the voltage is being supplied across the winding. An inverter connected between the power supply and the winding commutates the winding as a function of the back EMF signal, whereby the rotatable assembly rotates. A method of operating the motor and a control circuit for the motor employ the back emf induced in the winding during periods when the voltage is being applied to the winding by the power supply.

    Abstract translation: 电动机包括固定组件和与其耦合的磁耦合的可旋转组件。 固定组件包括绕组，可旋转组件的旋转引起绕组中的反电动势。 用于在绕组上提供电压的电源驱动通过绕组的电流。 连接到绕组的反电动势传感器产生表示在绕组上提供电压的时间段期间在绕组中感应的反电动势的反EMF信号。 连接在电源和绕组之间的逆变器根据反电动势信号将绕组换向，由此可旋转组件旋转。 在通过电源将电压施加到绕组的期间，操作电动机的方法和用于电动机的控制电路采用在绕组中感应的反电动势。

    Permanent magnet d.c. motor having a radially-disposed working flux gap
    519.
    发明授权
    Permanent magnet d.c. motor having a radially-disposed working flux gap 失效
    永磁直流 电动机具有径向设置的工作磁通间隙

    公开(公告)号：US5659217A

    公开(公告)日：1997-08-19

    申请号：US384061

    申请日：1995-02-10

    Applicant: Christian C. Petersen

    Inventor： Christian C. Petersen

    IPC: H02K1/14 ,  H02K21/12 ,  H02K29/08 ,  H02K29/10 ,  H02K21/24

    CPC classification number: H02K29/10 ,  H02K1/146 ,  H02K21/12 ,  H02K29/08 ,  H02K2201/06 ,  H02K2201/12

    Abstract: A P.M. d.c. motor which may utilize "brushless" commutation. The motor includes a stator assembly with a plurality of upstanding discrete spaced-apart core components formed in a circular locus generally parallel with the motor axis. Each core component includes a relatively lengthy winding association region and extending therefrom a pole piece region providing a flux interaction surface. A field winding mounted upon a bobbin is positioned over the core component at the winding association region and when excited, generates electromagnetic flux at the flux interaction surface. A permanent magnet component is carried by a rotor such that its interaction surface is adjacent to that at the pole piece region, and is spaced therefrom to define a flux working gap at a desirably lengthy working gap radius from the motor axis.

    Abstract translation: 一个P.M. 直径 电动机可以利用“无刷”换向。 电动机包括定子组件，其具有形成在大致平行于电动机轴线的圆形轨迹中的多个直立离散间隔开的芯部件。 每个芯组件包括相对冗长的绕组关联区域并从其延伸提供通量相互作用表面的极片区域。 安装在线轴上的场绕组位于绕组关联区域的芯部件上方，并且当被激励时，在通量相互作用表面处产生电磁通量。 永磁体部件由转子承载，使得其相互作用表面与极片区域相邻，并且与永久磁铁部件间隔开，以在从马达轴线延伸的期望长度的工作间隙半径处限定焊剂工作间隙。

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