To provide a rotary electric machine capable of reducing torque pulsation in a wide operation range.SOLUTION: A rotary electric machine is provided with: a stator; and a rotor with a rotor core, in which the rotor core has: a d-axis core (41) and an inner peripheral side core which are arranged on an outer peripheral side and an inner peripheral side of a magnet insertion hole, respectively; and a q-axis core (46) adjacent to the d-axis core, the d-axis core is coupled with the inner peripheral side core by a first bridge part (61) and a second bridge part (62) adjacent to both ends of the magnet insertion hole, distance L1 between an end on a side of the first bridge part of the d-axis core and a magnetic pole center (C) is larger than distance L2 between a connection part of the first bridge part and the d-axis core and the magnetic pole center, distance L3 between an end on a side of the second bridge part of the d-axis core and the magnetic pole center is larger than distance L4 between the connection part of second bridge part and the d-axis core and the magnetic pole center, and the rotor core has a plurality of kinds of cross-sectional shapes for one pole pitch angle τp.SELECTED DRAWING: Figure 11

    【課題】広い運転範囲でトルク脈動を低減できる回転電機を提供する。【解決手段】回転電機は、固定子と、回転子コアを備える回転子とを備え、回転子コアは、磁石挿入孔の外周側および内周側にそれぞれ配置されるd軸コア(41)および内周側コアと、d軸コアと隣接するq軸コア(46)を有し、d軸コアは、磁石挿入孔の両端部の隣接する第1ブリッジ部(61)および第2ブリッジ部(62)により内周側コアと連結され、d軸コアの第1ブリッジ部側の端部と磁極中心(C)との距離L1が、第1ブリッジ部とd軸コアとの接続部と磁極中心との距離L2よりも大きく、d軸コアの第2ブリッジ部側の端部と磁極中心との距離L3が、第2ブリッジ部とd軸コアとの接続部と磁極中心との距離L4よりも大きく、回転子コアは1極ピッチ角τp分の断面形状を複数種類有する。【選択図】図11


    Access

    Download


    Export, share and cite



    Title :

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


    Additional title:

    回転電機、回転電動機駆動システム、並びに電動車両


    Contributors:

    Publication date :

    2019-10-31


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

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



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

    KUNIHIRO NAOKI / SUGIMOTO SHINJI / KOORI DAISUKE et al. | European Patent Office | 2017

    Free access

    ROTARY ELECTRIC MACHINE AND VEHICLE DRIVE DEVICE PROVIDED WITH ROTARY ELECTRIC MACHINE

    IWASE TAKURO / ASANO MASAOMI / YAMAOKA DAISUKE et al. | European Patent Office | 2021

    Free access

    Rotary electric machine and in-vehicle rotary electric machine system

    FUKUSHIGE TAKASHI | European Patent Office | 2016

    Free access

    ROTARY ELECTRIC MACHINE AND VEHICLE COMPRISING ROTARY ELECTRIC MACHINE

    SUGIMOTO SHINJI / TAKAHASHI AKIFUMI / TAMURA TATSUHIRO | European Patent Office | 2020

    Free access

    ROTARY ELECTRIC MACHINE, AND VEHICLE LOADING ROTARY ELECTRIC MACHINE

    IIDA TAKAHIRO | European Patent Office | 2022

    Free access