To provide a rotating electric machine that can reduce torque pulsation in a wide operating range. A rotating electric machine includes a stator and a rotor having a rotor core. The rotor core includes a d-axis core (41) and an inner circumferential side core disposed on an outer circumferential side and an inner circumferential side of the magnet insertion hole, respectively, and a q-axis core (46) adjacent to the d-axis core. The d-axis core is coupled to the inner circumferential side core by a first bridge portion (61) and a second bridge portion (62) adjacent to both ends of the magnet insertion hole. A distance L1 between an end of the d-axis core on the first bridge portion side and a magnetic pole center (C) is larger than a distance L2 between a connection portion between the first bridge portion and the d-axis core and the magnetic pole center. A distance L3 between an end of the d-axis core on the second bridge portion side and the magnetic pole center is larger than a distance L4 between a connection portion between the second bridge portion and the d-axis core and the magnetic pole center. The rotor core has multiple types of cross-sectional shapes for a one-pole pitch angle τp.


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    Title :

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


    Additional title:

    ELEKTRISCHE DREHMASCHINE, ANTRIEBSSYSTEM FÜR ELEKTRISCHE DREHMASCHINE UND ELEKTROFAHRZEUG
    MACHINE ÉLECTRIQUE TOURNANTE, SYSTÈME D'ENTRAÎNEMENT DE MOTEUR ROTATIF, ET VÉHICULE ÉLECTRIQUE


    Contributors:

    Publication date :

    2021-03-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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