ROTARY ELECTRIC MACHINE, ROTARY ELECTRIC MOTOR DRIVE SYSTEM, AND ELECTRIC VEHICLE

The present invention provides a rotary electric machine that enables reduction in torque pulsation without generating rotation direction dependency of torque, and a rotary electric motor drive system and an electric vehicle provided with the rotary electric machine. The rotary electric machine (1)...

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Bibliographic Details
Main Authors ITO, Makoto, KUSHIDA, Takatoshi, TAKAHASHI, Akeshi, SUGIMOTO, Shinji, TAMIYA, Shuichi
Format Patent
LanguageEnglish
French
German
Published 08.06.2022
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
GENERATION
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Summary:The present invention provides a rotary electric machine that enables reduction in torque pulsation without generating rotation direction dependency of torque, and a rotary electric motor drive system and an electric vehicle provided with the rotary electric machine. The rotary electric machine (1) includes a stator (10) and a rotor (30) that opposes the stator. The number of poles of the rotor is six or more. A cross-sectional shape of the rotor is configured such that partial cross-sectional shapes (130) each corresponding to one pole pitch are arranged for the number of poles. The partial cross-sectional shapes for the number of poles include three or more types of shapes that are different from each other. The cross-sectional shape of the rotor has line symmetry.
Bibliography:Application Number: EP20190837175