公开(公告)号：US20140285042A1

公开(公告)日：2014-09-25

申请号：US14225318

申请日：2014-03-25

Applicant: Johnson Electric S.A.

Inventor： James Ching Sik LAU ,  Tongjie LI ,  Guowei SUN ,  Qingbin LUO ,  Hongwei ZHANG ,  Huiting ZHONG

IPC: H02K1/04 ,  H02K11/00 ,  H02K11/02 ,  H02K1/17

CPC classification number: H02K1/04 ,  H02K1/17 ,  H02K1/30 ,  H02K11/0094 ,  H02K11/022 ,  H02K11/028 ,  H02K23/00

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）。

公开(公告)号：US20140159521A1

公开(公告)日：2014-06-12

申请号：US13956215

申请日：2013-07-31

Applicant: Johnson Electric S.A.

Inventor： Tongjie LI ,  Qingbin LUO ,  Guowei SUN ,  Ying CHEN ,  Huiting ZHONG

IPC: H02K13/00 ,  H02K11/02

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。

公开(公告)号：US20140049126A1

公开(公告)日：2014-02-20

申请号：US13971807

申请日：2013-08-20

Applicant: Johnson Electric S.A.

Inventor： Maoxiong JIANG ,  Tongjie LI ,  Qingbin LUO ,  Xinpeng WEI ,  Huiting ZHONG

IPC: H02K11/00

CPC classification number: H02K11/026

Abstract: A rotatory device (1) for energy conversion between electrical energy and mechanical energy includes an end cap (20) to which electric conduction and commutation components (30) are attached. The end cap (20) is electrically insulating and has a flange mating to an electric conductive housing (10) of the rotatory device (1). An unpackaged capacitor (40) is positioned between the housing (10) and the flange (20) without occupying other space inside the housing (10) of rotatory device (1). The unpackaged capacitor (40) is electrically coupled to the electric conduction and commutation component and grounded to the housing (10) of the rotatory device (1).

Abstract translation: 用于电能和机械能之间的能量转换的旋转装置（1）包括连接有导电和换向组件（30）的端帽（20）。 端盖（20）是电绝缘的并且具有与旋转装置（1）的导电壳体（10）配合的凸缘。 未包装的电容器（40）定位在壳体（10）和凸缘（20）之间，而不占用旋转装置（1）的壳体（10）内的其它空间。 未封装的电容器（40）电耦合到导电和换向部件并且接地到旋转装置（1）的壳体（10）。