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    Variable speed induction motor with wye-delta switching with reduced drive volt-amp requirement
    1.
    发明授权
    Variable speed induction motor with wye-delta switching with reduced drive volt-amp requirement 失效
    具有叶片三角形切换的变速感应电动机，降低了驱动电压的要求

    公开(公告)号：US07474074B2

    公开(公告)日：2009-01-06

    申请号：US11560779

    申请日：2006-11-16

    Applicant: Keith I. Hoemann

    Inventor： Keith I. Hoemann

    IPC: H02P1/26

    CPC classification number: H02P25/18 ,  D06F37/304 ,  H02P1/32 ,  H02P25/184 ,  H02P2207/01 ,  Y02B40/52

    Abstract: A washing machine comprising a laundry receptacle, a variable speed induction motor driving the laundry receptacle at a wash speed and as spin speed, a drive for powering the motor, and a wye-delta switch for connecting the drive and the motor in a wye configuration during the wash cycle or a delta configuration during a spin cycle. A controller controls the speed of the motor and the switch.

    Abstract translation: 一种洗衣机，包括衣物容器，以洗涤速度驱动衣物容器的可变速感应电动机和作为旋转速度的驱动器，用于为电动机提供动力的驱动器以及用于将驱动器和电动机连接在一起的配置 在洗涤循环期间或在旋转循环期间的delta配置。 控制器控制电机和开关的速度。

    Variable speed induction motor with wye-delta switching with reduced drive volt-amp requirement
    3.
    发明申请
    Variable speed induction motor with wye-delta switching with reduced drive volt-amp requirement 失效
    具有叶片三角形切换的变速感应电动机，降低了驱动电压的要求

    公开(公告)号：US20080116839A1

    公开(公告)日：2008-05-22

    申请号：US11560779

    申请日：2006-11-16

    Applicant: Keith I. Hoemann

    Inventor： Keith I. Hoemann

    IPC: H02P1/26

    CPC classification number: H02P25/18 ,  D06F37/304 ,  H02P1/32 ,  H02P25/184 ,  H02P2207/01 ,  Y02B40/52

    Abstract: A washing machine comprising a laundry receptacle, a variable speed induction motor driving the laundry receptacle at a wash speed and as spin speed, a drive for powering the motor, and a wye-delta switch for connecting the drive and the motor in a wye configuration during the wash cycle or a delta configuration during a spin cycle. A controller controls the speed of the motor and the switch.

    Abstract translation: 一种洗衣机，包括衣物容器，以洗涤速度驱动衣物容器的可变速感应电动机和作为旋转速度的驱动器，用于为电动机提供动力的驱动器以及用于将驱动器和电动机连接在一起的配置 在洗涤循环期间或在旋转循环期间的delta配置。 控制器控制电机和开关的速度。

    Permanent magnet rotor and motor
    6.
    发明授权
    Permanent magnet rotor and motor 失效
    永磁转子和电机

    公开(公告)号：US5034642A

    公开(公告)日：1991-07-23

    申请号：US575366

    申请日：1990-08-30

    Applicant: Keith I. Hoemann ,  Scott E. Eckles

    Inventor： Keith I. Hoemann ,  Scott E. Eckles

    IPC: H02K1/27 ,  H02K21/14 ,  H02K29/08

    CPC classification number: H02K29/08 ,  H02K1/272 ,  H02K1/2726 ,  H02K2201/06

    Abstract: A permanent magnet rotor for an electric motor includes longitudinally extending main rotor field and sensor field sections, the sensor field section being substantially shorter than the main rotor field section and being disposed at one end thereof. The sensor field section is magnetized in circumferentially disposed parallel strips of alternating magnetic polarity around the rotor. The main rotor field section has longitudinally extending strips of alternating magnetic polarity which are skewed in a predetermined pattern. The predetermined pattern includes a first portion in which each longitudinally extending strip runs generally at a first predetermined non-zero angle with respect to the longitudinal axis of the rotor, a second portion in which each longitudinally extending strip runs generally at a second predetermined non-zero angle with respect that axis, and a third portion in which each longitudinally extending strip runs generally at the first predetermined non-zero angle with respect to the axis. The first and second angles are opposite in sign.

    Brushless permanent magnet machine
    10.
    发明授权
    Brushless permanent magnet machine 有权
    无刷永磁机

    公开(公告)号：US6133663A

    公开(公告)日：2000-10-17

    申请号：US285155

    申请日：1999-04-01

    Applicant: Keith I. Hoemann

    Inventor： Keith I. Hoemann

    IPC: H02K1/14 ,  H02K1/27 ,  H02K21/16 ,  H02K3/00 ,  H02K3/28

    CPC classification number: H02K1/2773 ,  H02K1/146 ,  H02K21/16

    Abstract: A brushless permanent magnet machine that includes a combination of a fractional stator slot/rotor pole and a winding configuration to reduce cogging during operation of the machine. The stator has a series of teeth (preferably eighteen) which are surrounded by a series of coils. The coils are wound around the teeth and connected to a three-phase power supply in a manner that reduces cogging. The rotor has a series of slots (preferably sixteen). In the first embodiment, the coils are wound around every tooth, and the teeth are divided into sections of three, wherein each section of three teeth is connected to one phase of the power supply. In this embodiment, the fractional stator slot/rotor pole ratio is 18/16. In a second embodiment, the coils are wound around every other tooth, which provides for more space for winding the coils. In this embodiment, the fractional stator slot/rotor pole ratio is 9/16.The permanent magnet machine further includes a design for a rotor lamination which provides sixteen magnet slots and eight slot connecting holes. The slot connecting holes join the magnet slots in pairs, which provide easy access to the magnets inserted in the rotor. The rotor design further provides a series of rotor holes located between the magnet slots which, with the slot connecting holes, provide for insulation of the machine from unwanted magnetic flux.

    Abstract translation: 一种无刷永磁电机，其包括分数定子槽/转子磁极和绕组构造的组合，以减少机器运行期间的齿槽。 定子具有由一系列线圈包围的一系列齿（优选十八）。 线圈缠绕在齿上并以减少齿槽的方式连接到三相电源。 转子有一系列槽（最好是16个）。 在第一实施例中，线圈缠绕在每个齿上，并且齿被分成三个部分，其中三个齿的每个部分连接到电源的一个相。 在本实施例中，分数定子槽/转子极比为18/16。 在第二实施例中，线圈缠绕在每隔一个齿上，这提供了用于缠绕线圈的更多空间。 在本实施例中，分数定子槽/转子磁极比为9/16。 永磁机还包括一个转子叠片的设计，它提供十六个磁体槽和八个槽连接孔。 槽连接孔成对地连接磁体槽，这使得容易接近插入转子中的磁体。 转子设计还提供了位于磁体槽之间的一系列转子孔，其中槽连接孔提供机器与不需要的磁通的绝缘。

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