Rotary electric machine having a flux-concentrating rotor and a stator with windings on teeth
AssigneeMoteurs Leroy-Somer
InventorsEric Coupart, Pascal Gauthier, Jacques Saint-Michel, Christophe Gilles, André Eydelie, Laurent Jadeau, Philippe Augier, Jean-Marie Guillot
Life of this patent
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Abstract
A rotary electric machine including a flux-concentrating rotor with permanent magnets disposed between pole pieces, and a stator with teeth having a free end deprived of pole swellings and a concentrated winding. The pole pieces and the magnets are configured so as to minimize the difference Ld−Lq where Ld is inductance on a forward axis and Lq is inductance on a quadrature axis.
Claims45
A rotary electric machine comprising:
- a flux-concentrating rotor comprising permanent magnets disposed between non-magnetically interconnected pole pieces;
- and
- a stator comprising
- teeth having a free end deprived of pole swellings and a concentrated winding.
A rotary electric machine comprising:
- a flux concentrating rotor;
- and
- a stator comprising:
- an annular portion;
- teeth having an end connected to said annular portion, each tooth comprising two non-parallel opposite planar faces;
- and
- a concentrated winding.
A rotary electric machine comprising:
- a flax concentrating rotor comprising permanent magnets disposed between non-magnetically interconnected pole pieces;
- and
- a stator comprising:
- a concentrated winding;
- and
- at least one detector comprising a magnetic field sensor to detect a magnetic field of the magnets of the rotor from a location that overlaps a peripheral region of the rotor when the machine is observed on an axis of rotation of the rotor.
A rotary electric machine comprising:
- a flax concentrating rotor;
- and
- a stator comprising a concentrated winding, said concentrated winding comprising at least one individual coil comprising a plurality of superposed turns of a substantially flat bundle of insulated wires wound around a winding axis, in such a manner that a cross-section of the bundle has a long dimension that extends substantially perpendicularly to the winding axis.
A rotary electric machine comprising:
- a flux concentrating rotor comprising permanent magnets disposed between non-magnetically interconnected pole pieces;
- and
- a stator comprising a concentrated winding, said concentrated winding comprising at least one coil defining with a corresponding tooth a gap, a detector for delivering a signal representative of rotation of a the rotor being engaged in said gap.
Dependencies are inferred from the claim text.