Single phase brushless motor
    3.
    发明授权

    公开(公告)号:US10110102B2

    公开(公告)日:2018-10-23

    申请号:US14965303

    申请日:2015-12-10

    Abstract: A single phase brushless motor includes a stator and a rotor. The stator includes a stator core and stator windings wound on the stator core. The stator core includes a yoke portion, and first and second pole portions extending inwardly from the yoke portion. An end surface of the first pole portion includes a first arc surface having a first groove. An end surface of the second pole portion includes a second arc surface having a second groove. The first and second arc surfaces are opposed to each other and define a receiving space therebetween. The rotor includes a rotary shaft and permanent magnetic poles fixed to the rotary shaft. The permanent magnetic poles are received in the receiving space. A substantially uniform gap is formed between the first arc surface and the second arc surface and the permanent magnetic poles.

    Single-phase brushless motor
    4.
    发明授权

    公开(公告)号:US10110076B2

    公开(公告)日:2018-10-23

    申请号:US14455160

    申请日:2014-08-08

    Abstract: A single-phase brushless motor includes a stator and a rotor rotatable with respect to the stator. The rotor includes a number of permanent magnetic poles. The stator includes a stator core and a winding wound on the stator core. The stator core includes an outer annular portion, an inner annular portion, and connecting portions connecting the inner and outer annular portions. The winding is wound around the connecting portions. The rotor is received in the inner annular portion. The inner annular portion and the rotor form a substantially uniform air gap. A recess is formed in an inner surface of a part of the inner annular portion between each pair of adjacent connecting portions. A center of each recess deviates from a center line of symmetry of the corresponding pair of connecting portions.

    Single Phase Brushless Motor and Electric Apparatus Having the Same
    5.
    发明申请
    Single Phase Brushless Motor and Electric Apparatus Having the Same 审中-公开
    单相无刷电机和电机相同

    公开(公告)号:US20160344271A1

    公开(公告)日:2016-11-24

    申请号:US15160174

    申请日:2016-05-20

    Abstract: A single phase brushless motor and a power tool and a car window lifer employing the motor are provided. The motor includes a stator and a rotor. The stator includes a stator core and windings. The stator core includes a yoke and teeth extending inward from the yoke. The tooth includes a tooth tip. The tooth tip includes a first pole shoe and a second pole shoe. The tooth tip forms a positioning groove facing the rotor between the first and second pole shoes. The rotor is received in a space defined between the first and second pole shoes. The rotor comprises multiple permanent magnetic poles arranged in a circumferential direction of the rotor. The first and second pole shoes are symmetrical about a central line of the tooth body, such that the rotor startup capability in one direction is greater than the rotor startup capability in an opposite direction.

    Abstract translation: 提供单相无刷电动机和电动工具以及采用电动机的车窗升降器。 电动机包括定子和转子。 定子包括定子铁芯和绕组。 定子铁芯包括一个磁轭和从磁轭向内延伸的齿。 牙齿包括齿尖。 齿尖包括第一极靴和第二极靴。 齿尖在第一和第二极靴之间形成面向转子的定位槽。 转子被容纳在限定在第一和第二极靴之间的空间中。 转子包括沿转子的圆周方向布置的多个永久磁极。 第一和第二极靴关于齿体的中心线对称,使得一个方向上的转子启动能力大于在相反方向上的转子启动能力。

    Single Phase Brushless Motor And Electric Apparatus
    6.
    发明申请
    Single Phase Brushless Motor And Electric Apparatus 审中-公开
    单相无刷电机和电器

    公开(公告)号:US20160344244A1

    公开(公告)日:2016-11-24

    申请号:US15160494

    申请日:2016-05-20

    Abstract: A single phase brushless motor and an electric apparatus are provided. The motor includes a stator and a rotor. The stator includes a stator core and windings. The stator core includes a yoke and at least two teeth. The tooth includes a tooth body and a tooth tip. The tooth tip includes first and second pole shoes. The rotor is received in a space defined between the first pole shoes and the second pole shoes. Each tooth forms a positioning groove facing the rotor between the first pole shoe and the second pole shoe. The first and second pole shoes are symmetrical about a central line of the tooth body and the positioning groove deviates toward the first pole shoe, such that the rotor startup capability in one direction is greater than the rotor startup capability in an opposite direction. The single phase motor has a larger startup torque with enhanced startup capability.

    Abstract translation: 提供单相无刷电动机和电气设备。 电动机包括定子和转子。 定子包括定子铁芯和绕组。 定子芯包括轭和至少两个齿。 牙齿包括牙体和牙齿尖端。 齿尖包括第一和第二极靴。 转子被容纳在第一极靴和第二极靴之间限定的空间中。 每个齿形成面向第一极靴和第二极靴之间的转子的定位槽。 第一和第二极靴关于齿体的中心线对称,并且定位槽朝向第一极靴偏离,使得一个方向上的转子启动能力大于相反方向上的转子启动能力。 单相电机具有较大的起动转矩,启动能力增强。

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