ROTOR FOR ROTATING ELECTRIC MACHINES
    2.
    发明申请

    公开(公告)号:US20190319522A1

    公开(公告)日:2019-10-17

    申请号:US16471948

    申请日:2016-12-21

    申请人: ABB Schweiz AG

    IPC分类号: H02K21/46 H02K1/22

    摘要: A rotor for a synchronous reluctance machine including a rotor core having a plurality of magnetically conductive laminations stacked in a rotor axial direction. The magnetically conductive laminations include cut-out portions forming a plurality of flux barriers radially alternated by flux paths portions, at least one of the flux barriers including a bridge connecting two flux paths portions adjacent to the at least one flux barrier. The at least one flux barrier has a first, barrier, mid-line which is the line that is equidistant from both sides of the at least one flux barrier, and the bridge has a second, bridge, mid-line which is the line that is equidistant from both sides of the bridge, the first and second mid-lines intersecting at an intersection point. The bridge has a first symmetry axis and a second symmetry axis and is non-symmetrical with respect to at least one of the first and second symmetry axis. The first symmetry axis is defined as the straight line tangential to the first, barrier, mid-line and passing through the intersection point, and the second symmetry axis is defined as the straight line orthogonal to the first symmetry axis and passing through the intersection point.

    Rotor for rotating electric machines having flux barriers arranged among bridges

    公开(公告)号:US11362574B2

    公开(公告)日:2022-06-14

    申请号:US16471948

    申请日:2016-12-21

    申请人: ABB Schweiz AG

    摘要: A rotor for a synchronous reluctance machine includes a rotor core having a plurality of magnetically conductive laminations stacked in a rotor axial direction. The magnetically conductive laminations include cut-out portions forming a plurality of flux barriers radially alternated by flux paths portions, where at least one of the flux barriers includes a ridge connecting two flux paths portions adjacent to the at least one flux barrier. The at least one flux barrier has a first barrier mid-line, which is a line that is equidistant from both sides of the at least one flux barrier. The bridge has a second bridge mid-line, which is the line that is equidistant from both sides of the bridge. The first and second mid-lines intersect. The bridge has a first and second symmetry axis and is non-symmetrical with respect to at least one of the first and second symmetry axis.

    PERMANENT MAGNET ROTOR FOR ROTATING ELECTRIC MACHINES AND METHOD FOR MANUFACTURING SUCH ROTOR

    公开(公告)号:US20180316232A1

    公开(公告)日:2018-11-01

    申请号:US15770439

    申请日:2016-09-14

    申请人: ABB Schweiz AG

    IPC分类号: H02K1/24 H02K15/03

    摘要: A rotor for an interior permanent magnet machine (IPM), comprising a rotor core having a plurality of magnetically conductive laminations stacked in a rotor axial direction. The magnetically conductive laminations comprise cut-out portions forming a plurality of flux barriers (FB) radially alternated by flux paths (FP), at least a first part of the flux barriers (FB) housing permanent magnets, at least a second part of the flux barriers (FB) being filled with an electrically conductive and magnetically non-conductive material creating a cage inside the rotor core. The rotor further includes a first and a second short circuit ring positioned at the opposite ends of the rotor core, the first short circuit ring being different from the second short circuit ring.