Multi-phase transverse flux machine

US6455970B1 · kind B1 · utility

Assignee

• Bombardier Transportation GmbH · DE

Inventors

• Uwe Shäfer · Berlin, DE
• Harald Neudorfer · Traiskirchen, AT

Key dates

• Filing date: Sep 19, 2000
• Grant date: Sep 24, 2002
• Expiry date: Sep 19, 2020

Classification

• Technology area (CPC H): Electricity
• CPC primary: H02K41/025
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Described herein is a multi-phase transverse flux machine, which comprises a stator with essentially U-shaped and I-shaped cores (1, 2) of a soft-magnetic material and respectively one stator winding (3) for each phase that generates a magnetic flux in these cores, as well as a rotor with circular magnetic return path (4). The phases of the stator are magnetically separated. The rotor contains electrically conductive material (5, 6) in each of the phases, wherein the electrically conductive material of at least two phases is arranged and is interconnected in the rotor, such that if an alternating current flows through the stator windings of these phases, a current generating a starting torque for the rotor is induced in the electrically conductive material. The at least two phases thus electrically form a rotating magnetic field machine in the rotor. The rotating magnetic field can be generated in that the stator windings of the at least two phases are admitted with currents that are phase-displaced relative to each other. However, it is also possible for the electrically connected rotor poles of the at least two phases and/or the stator poles assigned to these phases to be geometr…