PERMANENT MAGNET ASSISTED SYNCHRONOUS RELUCTANCE MOTORS

    公开(公告)号:US20250023398A1

    公开(公告)日:2025-01-16

    申请号:US18899326

    申请日:2024-09-27

    Applicant: ABB SCHWEIZ AG

    Abstract: A permanent magnet rotor can include a rotor body and at least one magnet. The rotor body can include at least one rotor cavity. The at least one magnet includes, in part, Mn—Bi particles and the at least one magnet can be either a sintered magnet or a polymer bonded magnet. The at least one magnet can be located, at least partially, in the at least one rotor cavity. Further, the at least one magnet can be installed in the at least one rotor cavity after forming the at least one magnet or the at least one magnet can be formed in the at least one rotor cavity using a mold. Moreover, the polymer bonded magnet can include a composite of polymer matrix and Mn—Bi particles.

    GROUNDING BRUSH ASSEMBLY
    13.
    发明公开

    公开(公告)号:US20240171048A1

    公开(公告)日:2024-05-23

    申请号:US18058340

    申请日:2022-11-23

    Applicant: ABB Schweiz AG

    CPC classification number: H02K11/40 H01R39/381 H01R39/385 H01R39/39 H02K5/148

    Abstract: A device may include a first end, a second end, and a coupler configured to extend through an aperture from a first side to a second side of a motor cover. The coupler includes a head portion, a conduit portion extending from the head portion towards the second end, and a first bore axially extending through the coupler. The device may include a brush holder extending through the first bore. The brush holder includes a cylindrical body, a socket at the first end, and a receptacle at the second end. The device may include a first lock nut including a first threaded bore axially extending through the nut. The device may be configured to enable a grounding brush to contact a motor shaft to provide a current discharge path to ground to reduce an erosion of the motor components including the motor shaft and rolling bearing elements.

    HYBRID RARE EARTH MAGNET
    16.
    发明申请

    公开(公告)号:US20190206595A1

    公开(公告)日:2019-07-04

    申请号:US16229819

    申请日:2018-12-21

    Applicant: ABB Schweiz AG

    CPC classification number: H01F1/0577 C22C38/16 H01F1/0576 H01F41/0293

    Abstract: A hybrid rare-earth-iron-boron hard magnetic material is constituted of two materials, a first magnetic alloy of chemical composition Nd12±0.2Fe82±0.2B6±0.2 in atomic percent with each single particle surrounded and chemically bonded to a second material constituted by copper, zinc, or a mixture of the foregoing such as brass alloys. The mixture of the first and second materials is magnetically oriented, compacted and densified such as through sintering, to optimize its mechanical and magnetic properties.

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