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    • 4. 发明申请
    • REACTANCE TYPE MOTOR
    • 反应型电机
    • WO1991003858A1
    • 1991-03-21
    • PCT/JP1990001090
    • 1990-08-28
    • KABUSHIKIGAISYA SEKOGIKENBAHN, Itsuki
    • KABUSHIKIGAISYA SEKOGIKEN
    • H02K19/10
    • H02K16/00H02K19/103H02K29/12
    • A three-phase single wave power supply reactance type motor having a construction wherein at least two motors are juxtaposed inside a casing (42), so that the number of magnetic poles (16a, ...) and the number of salient poles can be made small and consequently a small-diameter long motor can be obtained. In the construction wherein n three-phase single wave motors are juxtaposed, the output torque is n times the torque of one motor. When a phase difference of 120°/n is provided for the output torque of each motor, torque ripple can be reduced and better start performance is obtained. Since magnetic energy stored in excitation coils (17a, ...) is fed back to a D.C. power source of a high impressed voltage, the extinction of magnetic energy is rapidly done to prevent the generation of counter-torque, and the storing of magnetic energy is also rapidly done by the impressed high voltage to prevent the generation of deceleration torque. Alternatively, the reflux of the stored magnetic energy of the excitation coils 917a, ...) to which the power supply is cut off, to the D.C. power source is prevented by diodes, and the great electromotive force at that time is used to accelerate the storage of magnetic energy of the excitation coils (17a, ...) to which the power is to be next supplied, so that the extinction and storing of magnetic energy are accelerated so as to prevent the generation of the deceleration torque and the counter-torque.
    • 5. 发明申请
    • RELUCTANCE MOTOR
    • 电动马达
    • WO1997005692A1
    • 1997-02-13
    • PCT/JP1996002096
    • 1996-07-25
    • KABUSHIKIGAISYA SEKOGIKENBAHN, Itsuki
    • KABUSHIKIGAISYA SEKOGIKEN
    • H02P07/00
    • H02K29/12H02K19/103H02P25/08H02P25/0925
    • A reluctance motor comprising a fixed armature (1) and a rotor (5) of a magnetic substance disposed inside the armature (1) with a gap between them. Two salient poles (5a, 5b) having a width which is 2.5 times the angular pitch of slots (1a, 1b, ..., 1h) of the armature (1) are disposed round the outer peripheral portion of the rotor (5). A magnetic flux due to the excitation of armature coils (2h, 2d) of magnetic poles (4h, 4d) situated at positions at which no torque is generated is combined with the magnetic flux due to the excitation of armature coils (2a, 2e) of magnetic poles (4a, 4e) situated at positions in a direction of an arrow R at which a torque is generated. As a result, leakage fluxes Fa and Fb between the magnetic poles (4a, 4e) and the salient poles (5a, 5b) of the rotor (5) increase and the torque can be increased.
    • 磁阻电动机包括固定电枢(1)和设置在电枢(1)内部的磁性体的转子(5),它们之间具有间隙。 具有电枢(1)的槽(1a,1b,...,1h)的角度间距的2.5倍的两个凸极(5a,5b)配置在转子(5)的外周部周围, 。 由于位于不产生转矩的位置处的磁极(4h,4d)的电枢线圈(2h,2d)的激励而产生的磁通与由于电枢线圈(2a,2e)的激励而与磁通量组合, 位于产生转矩的箭头R方向的位置的磁极(4a,4e)。 结果,转子(5)的磁极(4a,4e)和凸极(5a,5b)之间的漏磁通Fa,Fb增大,能够提高转矩。
    • 10. 发明申请
    • HIGH-SPEED MOTOR
    • 高速电机
    • WO1992016046A1
    • 1992-09-17
    • PCT/JP1992000271
    • 1992-03-06
    • KABUSHIKIGAISYA SEKOGIKENBAHN, Itsuki
    • KABUSHIKIGAISYA SEKOGIKEN
    • H02P07/00
    • H02P25/089
    • A motor of a high speed, high torque and high efficiency. In a motor of a reluctance type, etc., according to the present invention, when the current application to an armature coil (32a) is stopped via a switching device in connection with a negative voltage side, the magnetic energy stored in a magnetic core is prevented from flowing back to the power supply by a diode (21a) for blocking a reverse current, and flows into a capacitor of a small capacitance, charging the capacitor and holding the voltage at a high value. Therefore, the current in the armature coil decreases rapidly. After the lapse of a predetermined time, the next armature coil (32e) is energized. The high voltage of the capacitor is applied to the coil (32e) at this time. Therefore, the current of the coil (32e) increases rapidly. Since the rise and fall of the current applied to the armature coil are made sharp, the motor can rotate at several tens of thousands r.p.m. Another means is adopted. While the current is applied to the armature coil, an inductance coil is energized too. When the currents in both coils are stopped, the magnetic energy stored in both the coils is made to flow into the capacitor and charge it. By this stored energy, the next armature coil is energized. The means compensates the energy loss due to the copper and iron loss.