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    • 2. 发明授权
    • Permanent-magnet-type rotating electrical machine
    • 永磁式旋转电机
    • US08044548B2
    • 2011-10-25
    • US12438216
    • 2006-08-23
    • Kazuto SakaiMasanori Arata
    • Kazuto SakaiMasanori Arata
    • H02K21/12
    • H02K1/2766H02K21/16H02K29/03
    • An object of the present invention is to provide a permanent-magnet-type rotating electrical machine capable of realizing a variable-speed operation at high output in a wide range from low speed to high speed and improving efficiency and reliability. The permanent-magnet-type rotating electrical machine of the present invention includes a stator provided with a coil and a rotor in which there are arranged a low-coercive-force permanent magnet whose coercive force is of such a level that a magnetic field created by a current of the stator coil may irreversibly change the flux density of the magnet and a high-coercive-force permanent magnet whose coercive force is equal to or larger than twice that of the low-coercive-force permanent magnet. At the time of high-speed rotation with a voltage of the permanent-magnet-type rotating electrical machine being around or over a power source maximum voltage, the low-coercive-force permanent magnet is magnetized with a magnetic field created by a current in such a way as to decrease total linkage flux of the low- and high-coercive-force permanent magnets, thereby adjusting a total linkage flux amount.
    • 本发明的目的在于提供一种永磁式旋转电机,能够实现从低速到高速的高输出的高速运转,提高效率和可靠性。 本发明的永磁式旋转电机包括具有线圈和转子的定子,其中设置有低矫顽磁力永久磁铁,其矫顽力为由 定子线圈的电流可能不可逆地改变磁体的磁通密度和矫顽力等于或大于低矫顽磁力永磁体两倍的高矫顽磁力永磁体。 在永久磁铁式旋转电机的电压高于大约或超过电源最大电压的高速旋转时,低矫顽磁力永久磁铁被由电流产生的磁场磁化 这样可以降低低压和高矫顽磁力永磁体的总交链磁通量,从而调整总的交链磁通量。
    • 4. 发明申请
    • PERMANENT-MAGNET RELUCTANCE ELECTRICAL ROTARY MACHINE
    • 永磁电机电动机
    • US20080093944A1
    • 2008-04-24
    • US11875529
    • 2007-10-19
    • Norio TAKAHASHIKazuto SakaiMasanori ArataYutaka HashibaWataru ItoMotoyasu MochizukiMikio TakabatakeMasakatsu MatsubaraTakashi Hanai
    • Norio TAKAHASHIKazuto SakaiMasanori ArataYutaka HashibaWataru ItoMotoyasu MochizukiMikio TakabatakeMasakatsu MatsubaraTakashi Hanai
    • H02K21/12H02K1/27H02K1/28
    • H02K1/2766H02K1/246
    • For an electrical reluctance rotary machine, a stator has a winding as an armature, and a rotor has permanent magnet implanting slots provided in a rotor core at lateral sides magnetic poles configured to produce reluctance torque along directions of magnetic flux passing through the magnetic poles to produce reluctance torque, and permanent magnets inserted in the permanent magnet implanting slots so as to cancel magnetic flux of the armature intersecting that magnetic flux, to control a magnetic field leaking at ends of the magnetic poles, having circumferential magnetic concavo-convex. The electrical reluctance rotary machine is configured to meet a relationship, such that 1.6 ≤ P × W pm R ≤ 1.9 where Wpm [mm] is a width of permanent magnet, R [mm] is an outer-diametrical radius of the rotor, and P is the number of poles.
    • 对于电磁旋转机,定子具有作为电枢的绕组,并且转子具有设置在转子芯中的横向磁极上的永磁体注入槽,该磁极被构造成沿着通过磁极的磁通的方向产生磁阻转矩, 产生磁阻转矩,并将永磁体插入到永磁体注入槽中,以抵消与该磁通相交的电枢的磁通量,以控制具有圆周磁性凹凸的磁极端部的磁场泄漏。 电磁旋转机被配置为满足关系,使得 1.6 R <= 1.9 W [mm]是永磁体的宽度,R [mm]是转子的外径半径,P是极数。
        • 10. 发明授权
        • Rotor for permanent magnet type rotating machine
        • 转子永磁式旋转机
        • US06268677B1
        • 2001-07-31
        • US09537408
        • 2000-03-29
        • Mikio TakabatakeMasanori ArataKazuto SakaiYutaka HashibaYoshio HashidateNorio TakahashiKoji OishiShiro Amemori
        • Mikio TakabatakeMasanori ArataKazuto SakaiYutaka HashibaYoshio HashidateNorio TakahashiKoji OishiShiro Amemori
        • H02K2112
        • H02K1/246H02K1/276H02K21/46
        • A rotor is provided for a permanent magnet type rotating machine having a stator 1 with armature windings 11. The rotor 3 includes a rotor core 31 and a plurality of permanent magnets 32 arranged in the rotor core 31 so as to negate magnetic flux of the armature windings 11 passing through interpoles 3b. The rotor 3 is constructed so that the average of magnetic flux in an air gap 2 between the rotor 3 and the stator 1, which is produced by the permanent magnets 32 at the armature windings' de-energized, ranges from 0.1 [T] to 0.7 [T] and the ratio (Lq/Ld) of self-inductance of the magnetic portion in a hard-magnetizing direction (q-axis) to self-inductance in an easy-magnetizing direction (d-axis) under a rated load condition ranges from 0.1 to 0.8. Under these conditions, it is possible to realize the rotating machine which operates as an induction machine at the machine's starting and also operates as an synchronous machine at the rated driving due to smooth pull-in.
        • 为具有具有电枢绕组11的定子1的永磁式旋转电机提供转子。转子3包括转子芯31和布置在转子芯31中的多个永久磁铁32,以抵消电枢的磁通量 绕组11穿过间极3b。 转子3被构造成使得在电枢绕组断电时由永磁体32产生的转子3和定子1之间的气隙2中的磁通量的平均值为0.1 [T]至 0.7 [T]和磁性部分在硬磁化方向(q轴)上的自感的容许比(Lq / Ld)与在额定负载下的易磁化方向(d轴)上的自感比 条件从0.1到0.8。 在这些条件下,可以实现在机器启动时作为感应电机工作的旋转机器,并且由于平滑的拉入而在额定驱动下作为同步电机工作。