Distributed winding arrangement for an electric motor

    公开(公告)号:USRE48399E1

    公开(公告)日:2021-01-19

    申请号:US16108854

    申请日:2018-08-22

    IPC分类号: H02K3/12 H02K23/30 H02K23/38

    摘要: A distributed winding arrangement for an electric motor is provided that reduces brush arcing while reducing the size of the commutator. The electric motor is comprised generally of an armature having a plurality of spaced apart posts defining a plurality of spaced apart winding slots; a stator disposed coaxially with the armature; and a commutator having a plurality of commutator bars, where the number of commutator bars is an integer greater than the number of winding slots but less than twice the number of winding slots provided by the armature.

    Low height quarter sheet sander
    4.
    发明授权

    公开(公告)号:US10179387B2

    公开(公告)日:2019-01-15

    申请号:US13858983

    申请日:2013-04-09

    IPC分类号: B24B23/03 B24B23/04 B24B7/00

    摘要: A power tool including a housing with an electric motor in the housing. The motor has a stator and an armature, the stator having field coils and the armature having an armature shaft on which a commutator is affixed. A pair of brush boxes are located in the housing on opposite sides of the commutator. An orbit mechanism coupled to the armature shaft and a platen is coupled to the orbit mechanism. The field coils comprise a first field coil facing a front of the sander and a second field coil facing a rear of the sander and the brush boxes are rotationally offset from the field coils with respect to a vertical axis of the sander.

    Distributed winding arrangement for an electric motor
    5.
    发明授权
    Distributed winding arrangement for an electric motor 有权
    电动机的分布绕组布置

    公开(公告)号:US09425663B2

    公开(公告)日:2016-08-23

    申请号:US13942298

    申请日:2013-07-15

    摘要: A distributed winding arrangement for an electric motor is provided that reduces brush arcing while reducing the size of the commutator. The electric motor is comprised generally of an armature having a plurality of spaced apart posts defining a plurality of spaced apart winding slots; a stator disposed coaxially with the armature; and a commutator having a plurality of commutator bars, where the number of commutator bars is an integer greater than the number of winding slots but less than twice the number of winding slots provided by the armature.

    摘要翻译: 提供了一种用于电动机的分布式绕组装置,其减小了刷电弧,同时减小了换向器的尺寸。 电动机通常由具有限定多个间隔开的卷绕槽的多个间隔开的柱的衔铁构成; 与所述电枢同轴地配置的定子; 以及具有多个换向器条的换向器,其中换向器条的数量大于绕组槽的数量但小于由电枢提供的绕组槽的数量的两倍。