METHOD AND APPARATUS FOR REDUCING NOISE OR ELECTROMAGNETIC INTERFERENCES IN A ROTATORY DEVICE
    1.
    发明申请
    METHOD AND APPARATUS FOR REDUCING NOISE OR ELECTROMAGNETIC INTERFERENCES IN A ROTATORY DEVICE 审中-公开
    用于减少旋转装置中的噪声或电磁干扰的方法和装置

    公开(公告)号:US20140159521A1

    公开(公告)日:2014-06-12

    申请号:US13956215

    申请日:2013-07-31

    CPC classification number: H02K13/006 H01R39/54 H02K11/02 H02K11/022 H02K11/028

    Abstract: An apparatus includes multiple brushes (30, 30B, 30A, 30a, 30b) and a commutator (10) that has multiple commutator plates (12, 12A, 12B, 13B) to contact the multiple brushes for commutation in order to convert electrical energy into mechanical energy or vice versa. A brush may include an EMI suppression mechanism (30, 38A, 38B) to reduce random electromagnetic interferences or a filter circuitry (400B) to reduce the overall level of electromagnetic interferences. An EMI suppression mechanism may include a specially designed brush that leverages dielectric properties or mechanical properties of the brush to reduce electromagnetic interferences. An EMI suppression filter circuitry may include an all-capacitor filter circuitry that does not include beads or chokes.

    Abstract translation: 一种装置包括多个电刷(30,30B,30A,30a,30b)和换向器(10),换向器(10)具有多个换向器板(12,12A,12B,13B),用于接触多个电刷换向以将电能转换成 机械能量,反之亦然。 电刷可以包括用于减少随机电磁干扰的EMI抑制机构(30,38A,38B)或滤波器电路(400B),以降低电磁干扰的总体水平。 EMI抑制机构可以包括专门设计的刷子,其利用电刷的介电特性或机械性能来减少电磁干扰。 EMI抑制滤波器电路可以包括不包括珠或扼流圈的全电容滤波器电路。

    DC ELECTRIC MOTOR HAVING AN INSULATING SLEEVE
    2.
    发明申请
    DC ELECTRIC MOTOR HAVING AN INSULATING SLEEVE 审中-公开
    具有绝缘套管的直流电动机

    公开(公告)号:US20140285042A1

    公开(公告)日:2014-09-25

    申请号:US14225318

    申请日:2014-03-25

    Abstract: A DC electric motor (10) comprises a rotor (30) rotably attached to a stator (20). The rotor (30) comprises an output shaft (31) and a rotor core (33), and a plurality of winding coils (35) wound on the rotor core (33) and electrically connected to a commutator (34) on the output shaft (31). An insulating sleeve (32) is disposed between the output shaft (31) and rotor core (33), forming a capacitor between the output shaft (31) and rotor core (33), thereby reducing the EMI caused by the fluctuating current in the winding coils (35).

    Abstract translation: DC电动机(10)包括可旋转地附接到定子(20)的转子(30)。 转子(30)包括输出轴(31)和转子芯(33),以及缠绕在转子芯(33)上并与输出轴上的换向器(34)电连接的多个绕组线圈 (31)。 在输出轴(31)和转子芯(33)之间设有绝缘套筒(32),在输出轴(31)和转子芯(33)之间形成一个电容器,从而减少由于电流 绕组线圈(35)。

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