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    • 3. 发明公开
    • MOTOR
    • 发动机
    • EP2798724A1
    • 2014-11-05
    • EP12861723.0
    • 2012-12-21
    • Nidec CorporationHaga, HidehiroAono, MasatoHattori, Takashi
    • HAGA, HidehiroAONO, MasatoHATTORI, Takashi
    • H02K1/27
    • H02K1/28H02K1/274H02K1/278
    • A rotating section of the motor includes a plurality of magnets which is arranged in a circumferential direction, a rotor core having an outer peripheral surface which comes into contact with the radially inner surfaces of the magnets, and a magnet holder which holds the magnets between the magnet holder and the rotor core. The magnet holder has a columnar portion axially extending between adjacent magnets among the plurality of magnets, and a wall surface spreading in a circumferential direction from the columnar portion. The wall surface is in contact with the surface arranged radially outer than a circumferential end face of the magnet. Further, the circumferential end face on at least one side of the magnet faces the columnar portion with a gap interposed therebetween in the circumferential direction. For this reason, even if some of the magnets are formed larger than a design dimension, deformation of the columnar portion by the magnet does not easily occur. Therefore, an obstacle in disposing of another magnet also does not easily occur.
    • 电动机的旋转部包括:沿周向配置的多个磁铁;转子铁芯,其具有与磁铁的径向内侧的面接触的外周面;以及磁铁保持件,其将磁铁保持在 磁铁架和转子铁芯。 磁体保持件具有在多个磁体中的相邻磁体之间沿轴向延伸的柱状部分和从柱状部分沿圆周方向扩展的壁表面。 该壁面与配置在比磁铁的周向端面靠径向外侧的面接触。 另外,磁铁的至少一侧的周向端面在圆周方向上隔着间隙与柱状部相对。 因此,即使一部分磁铁形成得比设计尺寸大,也不容易发生由磁铁引起的柱状部的变形。 因此,处置另一个磁体的障碍也不容易发生。
    • 10. 发明申请
    • MOTOR
    • 发动机
    • WO2013099195A1
    • 2013-07-04
    • PCT/JP2012/008218
    • 2012-12-21
    • NIDEC CORPORATIONHAGA, HidehiroAONO, MasatoHATTORI, Takashi
    • HAGA, HidehiroAONO, MasatoHATTORI, Takashi
    • H02K1/27
    • H02K1/28H02K1/274H02K1/278
    • A rotating section of the motor includes a plurality of magnets which is arranged in a circumferential direction, a rotor core having an outer peripheral surface which comes into contact with the radially inner surfaces of the magnets, and a magnet holder which holds the magnets between the magnet holder and the rotor core. The magnet holder has a columnar portion axially extending between adjacent magnets among the plurality of magnets, and a wall surface spreading in a circumferential direction from the columnar portion. The wall surface is in contact with the surface arranged radially outer than a circumferential end face of the magnet. Further, the circumferential end face on at least one side of the magnet faces the columnar portion with a gap interposed therebetween in the circumferential direction. For this reason, even if some of the magnets are formed larger than a design dimension, deformation of the columnar portion by the magnet does not easily occur. Therefore, an obstacle in disposing of another magnet also does not easily occur.
    • 马达的旋转部分包括沿圆周方向布置的多个磁体,具有与磁体的径向内表面接触的外周面的转子铁芯和将磁体保持在磁体之间的磁体保持器 磁铁座和转子铁芯。 磁体保持器具有在多个磁体中的相邻磁体之间轴向延伸的柱状部分,以及从柱状部向圆周方向扩展的壁面。 所述壁面与所述磁体的周向端面的径向外侧配置的表面接触。 此外,磁体的至少一侧的周向端面在圆周方向上与其间具有间隙而面对柱状部。 因此,即使一些磁体形成得比设计尺寸大,也不容易发生磁铁的柱状部的变形。 因此,不容易发生处置另一磁体的障碍物。