Synchronous Reluctance Motors with Enhanced Saliency Ratio

    公开(公告)号:US20230129960A1

    公开(公告)日:2023-04-27

    申请号:US17509967

    申请日:2021-10-25

    Applicant: ABB Schweiz AG

    Abstract: A rotor of a synchronous reluctance motor may include: a plurality of laminations forming a stack, each lamination including: two parallel surfaces and a perimeter that define the lamination and a direction of stacking the laminations that is perpendicular to the parallel surfaces, the lamination at least partially filled with a magnetically soft electrical conductor and at least one cavity encircled by the conductor and extending from a first to a second surface of the two parallel surfaces, the conductor forming at least one bridge at the perimeter of the lamination from one side of the at least one cavity to another side of the at least one cavity. A value of a magnetic property and a value of a mechanical property of the at least one bridge differs from a value of the magnetic property and a value of the mechanical property of the conductor material.

    Rotor for a rotating electrical machine

    公开(公告)号:US11070116B2

    公开(公告)日:2021-07-20

    申请号:US16517262

    申请日:2019-07-19

    Applicant: ABB Schweiz AG

    Abstract: A rotating electrical machine of the double stator configuration includes a rotor shaped as a hollow cylinder disposed concentrically between an outer stator and an inner stator. The rotor can include plurality of radially spaced magnet cavities configured to receive permanent magnetic bars. To provide sufficient stiffness and rigidity, the rotor may be made from fiber composite material. To simplify construction, the rotor can be assembled from a plurality of rotor segments radially arranged about an axis line in which the magnet cavities are disposed.

    ELECTRICAL MACHINE WITH COOLING CHANNEL
    4.
    发明申请

    公开(公告)号:US20200212754A1

    公开(公告)日:2020-07-02

    申请号:US16234290

    申请日:2018-12-27

    Applicant: ABB Schweiz AG

    Abstract: An electrical machine comprises a polymeric housing formed by a polymeric material and constructed to house components of the electrical machine, structurally support the electrical machine and react torque loads generated by the electrical machine; a stator overmolded into and partially encapsulated by the polymeric housing, the stator including a laminated stator core and a plurality of stator windings, the stator windings including a winding overhang extending from the laminated stator core; a rotor in magnetic communication with the stator; and a cooling channel disposed within the polymeric material forming the housing and encapsulated by the polymeric material and positioned adjacent to the laminated stator core, wherein the cooling channel is constructed to pass a fluid for cooling the electrical machine.

    Molding Parameters for Injection Molded Rotor Production

    公开(公告)号:US20240364190A1

    公开(公告)日:2024-10-31

    申请号:US18307371

    申请日:2023-04-26

    Applicant: ABB Schweiz AG

    CPC classification number: H02K15/02

    Abstract: A method for molding a magnetic material into a rotor stack, including providing a polymer melt including magnetic compound particles and a polymer binder, providing a rotor including a plurality of cavities, the rotor being arranged in a mold having a mold cavity surface, and providing a gap between the outer periphery of the rotor and the mold cavity surface. The method also includes filling a first volume of the polymer melt into the cavities of the rotor at a first pressure and filling a second volume of the polymer melt into the rotor at one or more second pressures, the one or more second pressures being less than the first pressure and above an ambient pressure.

    Electrical machine with cooling channel

    公开(公告)号:US10938266B2

    公开(公告)日:2021-03-02

    申请号:US16234290

    申请日:2018-12-27

    Applicant: ABB Schweiz AG

    Abstract: An electrical machine comprises a polymeric housing formed by a polymeric material and constructed to house components of the electrical machine, structurally support the electrical machine and react torque loads generated by the electrical machine; a stator overmolded into and partially encapsulated by the polymeric housing, the stator including a laminated stator core and a plurality of stator windings, the stator windings including a winding overhang extending from the laminated stator core; a rotor in magnetic communication with the stator; and a cooling channel disposed within the polymeric material forming the housing and encapsulated by the polymeric material and positioned adjacent to the laminated stator core, wherein the cooling channel is constructed to pass a fluid for cooling the electrical machine.

    Rotor for a Rotating Electrical Machine

    公开(公告)号:US20210021182A1

    公开(公告)日:2021-01-21

    申请号:US16517262

    申请日:2019-07-19

    Applicant: ABB Schweiz AG

    Abstract: A rotating electrical machine of the double stator configuration includes a rotor shaped as a hollow cylinder disposed concentrically between an outer stator and an inner stator. The rotor can include plurality of radially spaced magnet cavities configured to receive permanent magnetic bars. To provide sufficient stiffness and rigidity, the rotor may be made from fiber composite material. To simplify construction, the rotor can be assembled from a plurality of rotor segments radially arranged about an axis line in which the magnet cavities are disposed.

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