Invention Grant
- Patent Title: Rotor for rotating electric machines having flux barriers arranged among bridges
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Application No.: US16471948Application Date: 2016-12-21
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Publication No.: US11362574B2Publication Date: 2022-06-14
- Inventor: Pietro Savio Termini , Alessandro Castagnini , Giovanni Tartaglino , Michele Maggi , Jere Kolehmainen , Tero Kansakangas
- Applicant: ABB Schweiz AG
- Applicant Address: CH Baden
- Assignee: ABB Schweiz AG
- Current Assignee: ABB Schweiz AG
- Current Assignee Address: CH Baden
- Agency: Armstrong Teasdale LLP
- International Application: PCT/EP2016/082242 WO 20161221
- International Announcement: WO2018/113961 WO 20180628
- Main IPC: H02K21/46
- IPC: H02K21/46 ; H02K1/22 ; H02K1/276 ; H02K1/27

Abstract:
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.
Public/Granted literature
- US20190319522A1 ROTOR FOR ROTATING ELECTRIC MACHINES Public/Granted day:2019-10-17
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