Permanent magnet rotating electric machine and electrically driven vehicle employing same
First Claim
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1. A permanent magnet rotating electric machine comprising:
- a stator having stator salient poles;
three-phase windings wound around said stator salient poles;
a rotor held rotatably relative to said stator; and
permanent magnets inserted into said rotor and positioned opposite to said stator salient, wherein said three-phase windings are concentratively wound around each of said stator salient poles, and the number of poles of said permanent magnets is eight or more.
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Abstract
A rotating electric machine comprises a stator having stator salient poles, three-phases windings wound around said stator salient poles, a rotor rotatable held inside the said stator, and permanent magnets inserted into said rotor and positioned opposite to said stator salient poles, wherein said three-phase windings are concentratively wound around each of said stator salient poles, said windings of each phase are wound around at more than one stator salient pole, and said windings of each phase have a phase difference of voltage between at least one of the windings and the other.
41 Citations
7 Claims
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1. A permanent magnet rotating electric machine comprising:
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a stator having stator salient poles;
three-phase windings wound around said stator salient poles;
a rotor held rotatably relative to said stator; and
permanent magnets inserted into said rotor and positioned opposite to said stator salient, wherein said three-phase windings are concentratively wound around each of said stator salient poles, and the number of poles of said permanent magnets is eight or more. - View Dependent Claims (2)
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3. A permanent magnet rotating electric machine comprising:
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a stator having stator salient poles;
three-phase windings wound around said stator salient poles;
a rotor held rotatably relative to said stator; and
permanent magnets inserted into said rotor and positioned opposite to said stator salient, wherein said three-phase windings are concentratively wound around each of said stator salient poles; and
said rotor further comprises a magnetic material having a higher magnetic impermeability than said permanent magnets, disposed between adjacent ones of said permanent magnets.
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4. An electrically driven vehicle comprising:
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a permanent magnet rotating electric machine being coupled to drive wheels comprising;
a stator having stator salient poles;
three-phase windings wound around said stator salient poles;
a rotor held rotatably relative to said stator; and
permanent magnets inserted into said rotor and positioned opposite to said stator salient poles, and control means for supplying a voltage to said three-phase windings, wherein said three-phase windings are concentratively wound around each of said salient poles;
the number of poles of said permanent magnets is eight or more, and said rotor further comprises a magnetic material having a higher magnetic impermeability than said permanent magnets, disposed between adjacent ones of said permanent magnets. - View Dependent Claims (6)
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5. An electrically driven vehicle having a permanent magnet rotating machine comprising:
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a stator having stator salient poles;
three-phase windings wound around said stator salient poles;
a rotor held rotatably relative to said stator; and
permanent magnets inserted into said rotor and positioned opposite to said stator salient, wherein said three-phase windings are concentratively wound around each of said stator salient poles, and the number of poles of said permanent magnets is eight or more.
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7. An electrically driven vehicle comprising:
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a stator having stator salient poles;
three-phase windings wound around said stator salient poles;
a rotor held rotatably relative to said stator; and
permanent magnets inserted into said rotor and positioned opposite to said stator salient, wherein said three-phase windings are concentratively wound around each of said stator salient poles; and
said rotor further comprises a magnetic material having a higher magnetic impermeability than said permanent magnets, disposed between adjacent ones of said permanent magnets.
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Specification