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1.
公开(公告)号:US10804758B2
公开(公告)日:2020-10-13
申请号:US15770439
申请日:2016-09-14
申请人: ABB Schweiz AG
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.
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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
发明人: Pietro Savio Termini , Alessandro Castagnini , Giovanni Tartaglino , Michele Maggi , Jere Kolehmainen , Tero Kansakangas
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.
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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
发明人: Pietro Savio Termini , Alessandro Castagnini , Giovanni Tartaglino , Michele Maggi , Jere Kolehmainen , Tero Kansakangas
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.
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4.
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
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.
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