Rotor for a synchronous generator
    74.
    发明授权

    公开(公告)号:US11050315B2

    公开(公告)日:2021-06-29

    申请号:US16526304

    申请日:2019-07-30

    IPC分类号: H02K3/28 H02K19/12 H02K1/24

    摘要: The invention concerns a rotor for a synchronous generator having a plurality of salient poles regularly disposed on the outer periphery of a rim, each pole comprising a coil with two external terminals said, respectively, first terminal and second terminal, the poles being arranged so that two adjacent poles have either their respective first terminals or their respective second terminals facing each other, the rotor further comprising at least a first connection between first terminals and/or at least a second connection between second terminals, the rotor being characterized in that the first connection and the second connection comprises a plurality of elongated conductive plates whose each ends (A, B) are secured via a single securing mean on facing terminals.

    Variable torque electric motor assembly

    公开(公告)号:US10770994B2

    公开(公告)日:2020-09-08

    申请号:US16246587

    申请日:2019-01-14

    摘要: An actuator assembly includes an electric motor including a rotor assembly and a stator assembly configured to be actuated to cause the rotor assembly to rotate based on an amount of magnetic flux in the rotor assembly is disclosed. The assembly also includes a controllable magnetic device coupled to the rotor assembly, an actuator coupled to the rotor assembly; and a controller configured to apply electric current to the controllable magnetic device to adjust an amount of torque provided by the electric motor by adjusting the magnetic flux in the rotor assembly.

    Electric motor
    77.
    发明授权

    公开(公告)号:US10348174B2

    公开(公告)日:2019-07-09

    申请号:US15500014

    申请日:2015-06-19

    摘要: An electric motor includes a rotor and a stator including a stator core, a plurality of armature windings, a plurality of field windings, and a plurality of bonded magnets. The stator core has a plurality of teeth alternately defining field slots and armature slots along a circumferential direction, and a stator yoke magnetically coupling the plurality of teeth opposite the rotor. Each armature winding is wound around two of the teeth sandwiched between an adjacent pair of the armature slots. Each field winding is wound around two of the teeth sandwiched between an adjacent pair of the field slots. The magnets are individually located in the field slots while opposing the field windings in the radial direction. Each adjacent pair of the magnets along the circumferential direction respectively has an adjacent pair of pole surfaces, with the adjacent pair of pole surfaces having a same polarity.

    Field winding type synchronous machine

    公开(公告)号:US10075112B2

    公开(公告)日:2018-09-11

    申请号:US15432336

    申请日:2017-02-14

    申请人: Hitachi, Ltd.

    摘要: A field winding type synchronous machine connects to a DC line and includes a rotor; a stator; an exciter that passes a current through a field winding of the rotor; and a rectification circuit that rectifies an output from the exciter and provides the output to the DC line. The synchronous machine includes the field winding being connected in parallel to a first circuit in which a parallel circuit including a rectifier element and a first switchgear is connected in series to a discharge resistor, a second switchgear being connected in series to the DC line that connects the first circuit to the rectification circuit, and a capacitor being provided between the discharge resistor and the input side of an electric power source element for gating the first switchgear.