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396 条记录 (耗时 0.03 秒)

    MOTOR
    1.
    发明申请
    MOTOR 审中-公开

    公开(公告)号：US20180152088A1

    公开(公告)日：2018-05-31

    申请号：US15825228

    申请日：2017-11-29

    申请人： Minebea Mitsumi Inc.

    发明人： Tomohisa SUZUKI ,  Yutaka KAMOGI

    IPC分类号： H02K29/08 ,  H02K29/12

    CPC分类号： H02K29/08 ,  H02K1/2733 ,  H02K5/225 ,  H02K11/215 ,  H02K29/12 ,  H02P6/16

    摘要： A motor includes a rotational shaft, a bearing supporting the rotational shaft, a magnet including plural magnetic poles in a circumferential direction, a rotor core disposed inside the magnet, and a magnetic sensor. The magnet includes a projection portion projecting toward a side of the bearing with respect to the rotor core in a direction of the rotational shaft. The magnetic sensor is positioned between the rotor core and the bearing in the direction of the rotational shaft and is positioned inside an inner peripheral surface of the projection portion.

    Method and system for determining the position of a synchronous motor's rotor
    5.
    发明授权
    Method and system for determining the position of a synchronous motor's rotor 有权
    确定同步电机转子位置的方法和系统

    公开(公告)号：US09525372B2

    公开(公告)日：2016-12-20

    申请号：US14183642

    申请日：2014-02-19

    申请人： Microchip Technology Incorporated

    发明人： Martin Hill

    IPC分类号： H02P1/04 ,  H02P6/18 ,  H02K29/12 ,  H02P21/14 ,  H02P21/00 ,  H02P6/22

    CPC分类号： H02P6/186 ,  H02K29/12 ,  H02P6/185 ,  H02P6/22 ,  H02P21/0085 ,  H02P21/18 ,  H02P21/32 ,  H02P2203/03

    摘要： To establish an initial/resting position of a permanent magnet rotor, all motor stator windings are stimulated (voltage applied thereto) in sequence, the time it takes for current in the stimulated stator winding to rise to a specific current value is measured for each stator winding and these time measurement results processed. From the measured time results rotor position to within 60 degrees is determined and the position sector is known prior to starting/rotating the motor. Once the rotor position is known, the next commutation point in a six step sequence is known before actually starting/rotating the motor. Position measurement winding stimulation may be interleaved with commutation pulses, or the unexcited stator winding may be stimulated between commutation pulses to the other two excited stator, wherein one of the two stator windings remains connected to the power and provides a current return path to the unexcited but stimulated stator winding.

    摘要翻译： 为了建立永磁转子的初始/静止位置，所有电动机定子绕组按顺序被激励（施加到其上的电压），对于每个定子测量受激定子绕组中的电流上升到特定电流值所需的时间 绕组和这些时间测量结果处理。 从测量时间结果可以确定转子位置到60度以内，并且在启动/旋转电机之前已知位置扇区。 一旦知道转子位置，在实际启动/旋转电机之前，已知六步序列中的下一个换向点。 位置测量绕组刺激可以与换向脉冲交错，或者可以在到另外两个激励的定子的换向脉冲之间刺激未激励的定子绕组，其中两个定子绕组中的一个保持连接到电力并且提供到未激励的电流返回路径 但激励了定子绕组。

    HALBACH MOTOR AND GENERATOR
    6.
    发明申请
    HALBACH MOTOR AND GENERATOR 审中-公开
    哈尔巴赫电机和发电机

    公开(公告)号：US20150171694A1

    公开(公告)日：2015-06-18

    申请号：US14185910

    申请日：2014-02-20

    申请人： Raymond James Walsh

    发明人： Raymond James Walsh

    IPC分类号： H02K3/47 ,  H02K19/00

    CPC分类号： H02K3/47 ,  H02K3/46 ,  H02K7/08 ,  H02K7/11 ,  H02K16/00 ,  H02K16/02 ,  H02K21/12 ,  H02K21/26 ,  H02K29/03 ,  H02K29/12 ,  H02K49/106

    摘要： A motor includes two magnetically coupled, coaxially-nested Halbach cylinder rotors, one of which passes through a toroidal series of at least two stator coils while the other is attached to an axle or other means of transferring mechanical power. An embodiment is described comprising an additional third Halbach cylinder rotor in which a circumferential arrangement of permanent magnets is mounted rotatably and proximally outside the stator coils, coaxial with the stator coils. Adjacent stator coils are configured so as to produce opposing magnetic fields upon energizing of the motor. Alternating the current to the stator coils induces movement in the rotor. Commutation can occur brushlessly, or the motor can be configured to function without commutation by varying the frequency of the alternating current, and can be configured to operate by either DC or AC current. Alternatively, the rotor may be driven to generate an electric current in the stator.

    摘要翻译： 电动机包括两个磁耦合的同轴嵌套的Halbach汽缸转子，其中一个通过至少两个定子线圈的环形系列，另一个连接到轴或其它传递机械功率的装置。 描述了一个实施例，其包括附加的第三Halbach圆柱转子，其中永磁体的周向布置可旋转地和近侧安装在定子线圈外部，与定子线圈同轴。 相邻的定子线圈配置成在电动机通电时产生相反的磁场。 交流定子线圈的电流会引起转子的运动。 整流可以无刷地发生，或者电动机可以配置为通过改变交流电流的频率而无需换向，并且可以被配置为通过直流或交流电流进行操作。 或者，可以驱动转子以在定子中产生电流。

    Electrical Machines
    7.
    发明申请
    Electrical Machines 审中-公开
    电机

    公开(公告)号：US20150042182A1

    公开(公告)日：2015-02-12

    申请号：US14123438

    申请日：2012-05-31

    申请人： Anthony Richard Glover

    发明人： Anthony Richard Glover

    IPC分类号： H02K16/00 ,  H02K3/28 ,  H02K19/06 ,  H02K1/24

    CPC分类号： H02K16/00 ,  H02K1/14 ,  H02K1/246 ,  H02K3/28 ,  H02K7/116 ,  H02K16/005 ,  H02K19/06 ,  H02K19/103 ,  H02K21/12 ,  H02K21/16 ,  H02K29/12 ,  Y02T10/641

    摘要： An electrical machine comprising: a first component having a first surface; a second component having a second surface, the first and second components being mounted such that the first surface is constrained to be movable in a cyclical path relative to the second surface; and a coil arranged to induce a magnetic field in one of the surfaces so as to, in at least some configurations of the machine, form a magnetic circuit through that surface; the machine being configured so that: a) the first component and the second component can magnetically interact with each other by virtue of magnetic flux through the first and second surfaces; and b) during at least part of the cyclical path the reluctance of the magnetic circuit is changed by relative motion of the first and second surfaces, that change in reluctance being predominantly due to a component of relative motion of the first and second surfaces in a direction parallel to the shortest distance between the first and second surfaces.

    摘要翻译： 一种电机，包括：具有第一表面的第一部件; 具有第二表面的第二部件，所述第一和第二部件被安装成使得所述第一表面被限制为可相对于所述第二表面在循环路径中移动; 以及线圈，其布置成在一个表面中引起磁场，以便在所述机器的至少一些配置中，通过所述表面形成磁路; 所述机器被配置为使得：a）所述第一部件和所述第二部件可以通过所述第一和第二表面的磁通量彼此磁性地相互作用; 以及b）在循环路径的至少部分期间，磁路的磁阻通过第一和第二表面的相对运动而改变，磁阻的变化主要是由于第一和第二表面的相对运动的分量 方向平行于第一和第二表面之间的最短距离。

    Sensorless motor and pump having a consequent rotor
    9.
    发明授权
    Sensorless motor and pump having a consequent rotor 有权
    无转子电动机和泵具有后续的转子

    公开(公告)号：US08786161B2

    公开(公告)日：2014-07-22

    申请号：US13431784

    申请日：2012-03-27

    申请人： Yoshiaki Takemoto ,  Toshihiro Uchida ,  Seiya Yokoyama ,  Shigemasa Kato

    发明人： Yoshiaki Takemoto ,  Toshihiro Uchida ,  Seiya Yokoyama ,  Shigemasa Kato

    IPC分类号： H02K1/27 ,  H02K1/24

    CPC分类号： H02K29/12 ,  H02K1/2746

    摘要： A motor in which drive current supplied to a winding is controlled in accordance with a rotational position of a rotor detected from a waveform of an induced voltage between phases. The motor is provided with a stator including 3×n teeth and windings for three phases. A rotor includes a rotor core, an n number of magnets, and an n number of salient poles. The magnets function as one of the magnetic poles, the salient poles function as the other one of the magnetic poles. Each salient pole is spaced apart by a gap from the adjacent ones of the magnets in the circumferential direction. The magnets and gap are arranged inward in the radial direction from the rotor core. An electrical angle between two ends of each magnet is set to be smaller than an electrical angle between two ends of each salient pole.

    摘要翻译： 根据从相之间的感应电压的波形检测的转子的旋转位置来控制供给到绕组的驱动电流的电动机。 电机设有一个定子，包括3×n个齿和三相绕组。 转子包括转子铁芯，n个磁体和n个凸极。 磁铁用作磁极之一，凸极用作另一个磁极。 每个凸极在圆周方向上与相邻的磁体间隔开间隔开。 磁体和间隙从转子芯向径向内侧布置。 每个磁体的两端之间的电角设定为小于每个凸极的两端之间的电角度。