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公开(公告)号：US5101148A
公开(公告)日：1992-03-31
申请号：US511925
申请日：1990-04-16
申请人： Seizi Yamashita , Kunio Miyashita , Hironori Okuda
发明人： Seizi Yamashita , Kunio Miyashita , Hironori Okuda
CPC分类号： G05B19/21 , H02P23/186 , G05B2219/41068 , G05B2219/41358 , G05B2219/42318
摘要： An actuator in which, when the reduction ratio of a reduction gear unit is 1/N, the number of pulses of a second encoder is set to be equal to N times (the number of pulses of a first encoder), whereby a pulse processing circuit for detecting a torsion angle is made remarkably simple.
摘要翻译： 一种致动器，其中当减速装置的减速比为1 / N时，将第二编码器的脉冲数设定为N倍（第一编码器的脉冲数），从而进行脉冲处理 用于检测扭转角的电路非常简单。
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公开(公告)号：US4144469A
公开(公告)日：1979-03-13
申请号：US822788
申请日：1977-08-08
申请人： Kunio Miyashita , Hironori Okuda , Seizi Yamashita , Shoji Tanabe
发明人： Kunio Miyashita , Hironori Okuda , Seizi Yamashita , Shoji Tanabe
摘要： A rotor of a permanent magnet type synchronous motor comprises a rotary shaft, a rotary supported by the rotary shaft and including an alternate disposition of a core section in the form of a lamination of a magnetic material which is stacked in the axial direction and a reinforcement section of a non-magnetic material and cavities axially formed in the core and reinforcement sections by passing therethrough, permanent magnets received in the cavities, and a strap interposed at least between the radial outer surface of respective permanent magnets and the opposing inner wall of the cavity, whereby distribution of pressures resulting from a centrifugal force due to the rotation of the rotor, which pressures are imparted on the inner wall of the cavity by the outer surface of the permanent magnet, is uniformed or shared by the strap, thereby preventing the permanent magnet from being fractured.
摘要翻译： 永磁式同步电动机的转子包括旋转轴，由旋转轴支撑的旋转体，并且包括以沿轴向堆叠的磁性材料层压形式的芯部的交替配置，以及加强件 非磁性材料的截面和通过其中穿过其中轴向形成在芯部和加强部分中的空腔，容纳在空腔中的永久磁体以及至少插入在相应永磁体的径向外表面和相应的永磁体的相对内壁之间的带 由此由于转子的转动而产生的离心力的分布由该永久磁铁的外表面赋予空腔的内壁上的压力被带子均匀或共享，由此防止了 永磁体断裂。
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公开(公告)号：US4012679A
公开(公告)日：1977-03-15
申请号：US543306
申请日：1975-01-23
申请人： Yasuo Matsuda , Takeo Maeda , Kouzou Watanabe , Kazuo Honda , Hironori Okuda , Kunio Miyashita , Yasuyuki Sugiura
发明人： Yasuo Matsuda , Takeo Maeda , Kouzou Watanabe , Kazuo Honda , Hironori Okuda , Kunio Miyashita , Yasuyuki Sugiura
CPC分类号： H02P1/52 , H02P25/024
摘要： A method and an apparatus for controlling the operation of the synchronous motor are disclosed in which the synchronous motor is started with a starting power supply and operated with a steadying power supply. The starting power supply is adapted to alternately repeat acceleration and deceleration of the synchronous motor in the neighborhood of the frequency thereby to bring the synchronous motor into the point where the synchronous motor is in synchronism with the steadying power supply. The starting power supply comprises a current control circuit and a phase angle control circuit, which circuits control the motor current in such a manner as to prevent the voltage drop due to the synchronous reactance of the motor from exceeding the induced voltage of the motor, while at the same time controlling the power factor angle to be in the range from a lead 90.degree. to the angle corresponding to a maximum output point produced by said motor current.
摘要翻译： 公开了一种用于控制同步电动机的操作的方法和装置，其中同步电动机由启动电源启动并以稳定电源运行。 起动电源适于在频率附近交替地重复同步电动机的加速和减速，从而使同步电动机进入同步电动机与稳定电源同步的点。 启动电源包括电流控制电路和相位角控制电路，其电路控制电动机电流，以防止由于电动机的同步电抗引起的电压下降超过电动机的感应电压，同时 同时将功率因数角控制在从导线90°到对应于由所述电动机电流产生的最大输出点的角度的范围内。
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公开(公告)号：US3968390A
公开(公告)日：1976-07-06
申请号：US448277
申请日：1974-03-05
申请人： Izuru Yasuda , Hironori Okuda , Kunio Miyashita
发明人： Izuru Yasuda , Hironori Okuda , Kunio Miyashita
CPC分类号： H02K1/278 , Y10T428/25
摘要： A synchronous motor is provided with a rotor including magnetic poles composed of a permanent magnet fixed around a rotor shaft, a stator facing the outer periphery of the rotor with an air gap formed therebetween, and a guard ring made of a non-magnetic material of low resistivity and fitly disposed around the outer periphery of the permanent magnet to restrain the surface loss caused by the magnetic flux linking with the guard ring, thereby preventing the reduction of the efficiency of the synchronous motor.
摘要翻译： 同步电动机设置有转子，该转子包括由固定在转子轴周围的永久磁铁构成的磁极，与转子的外周对置的定子，其间形成有气隙，以及由非磁性材料制成的保护环 低电阻率并且适当地设置在永磁体的外周周围，以抑制由与保护环连接的磁通引起的表面损失，从而防止同步电动机的效率降低。
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公开(公告)号：US4293787A
公开(公告)日：1981-10-06
申请号：US3012
申请日：1979-01-12
申请人： Motoya Ito , Masaki Sato , Masatoshi Watanabe , Hironori Okuda
发明人： Motoya Ito , Masaki Sato , Masatoshi Watanabe , Hironori Okuda
摘要： A rotary electric machine comprises a rotor axially shorter than the lamination thickness of the stator core and having a coil retaining ring at each end of the coil thereof. The rotary electric machine further comprises a magnetic transmission device between each of the adjacent teeth of the stator core opposed to the coil retaining ring.
摘要翻译： 旋转电机包括轴向短于定子铁心的层叠厚度的转子，并且在其线圈的每个端部具有线圈保持环。 旋转电机还包括在与线圈保持环相对的定子芯的相邻齿的每个之间的磁性传动装置。
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公开(公告)号：US4324993A
公开(公告)日：1982-04-13
申请号：US847157
申请日：1977-10-31
申请人： Masaki Sato , Hironori Okuda , Motoya Ito , Yuji Makino
发明人： Masaki Sato , Hironori Okuda , Motoya Ito , Yuji Makino
CPC分类号： H02K9/12
摘要： In a rotary electric machine including a stator core and a stator winding received in slots of the stator core, a cooling medium baffling device is provided which comprises a cooling medium baffle plate fixed to the inner peripheral edge of one end of the stator core by mounting bolts protruding axially from the end of the stator core, wherein the circumferential position of each of the mounting bolts is displaced from the circumferential position defining the boundary between the different modes of phase currents flowing through the coils constituting the stator winding, thereby effectively eliminating generation of excessive heat due to excessive eddy current losses occurring locally at the end of the stator core.
摘要翻译： 在包括定子铁心和定子绕组的定子绕组的旋转电机中，设置有冷却介质挡板装置，该冷却介质挡板装置包括通过安装在定子铁心的一端固定到内周边缘的冷却介质挡板 螺栓从定子芯的端部轴向突出的螺栓，其中每个安装螺栓的圆周位置从限定流过构成定子绕组的线圈的不同相模式之间的边界的周向位置偏移，从而有效地消除了产生 由于在定子芯的端部局部发生过大的涡流损耗而引起的过热。
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公开(公告)号：US4316113A
公开(公告)日：1982-02-16
申请号：US41647
申请日：1979-05-23
申请人： Masaki Sato , Hironori Okuda , Motoya Ito , Yuji Makino , Yasuyuki Wachi , Noriyoshi Takahashi , Masatoshi Watanabe
发明人： Masaki Sato , Hironori Okuda , Motoya Ito , Yuji Makino , Yasuyuki Wachi , Noriyoshi Takahashi , Masatoshi Watanabe
摘要： An electric rotary machine is provided with a stator having a stator core of laminated iron plates with a given lamination thickness in an axial direction of the machine and a stator winding wound around the core and a rotor rotatably disposed inside the stator, having a rotor core and a rotor winding. The axial length of the stator core is selected with respect to that of the rotor core in such a way that, when the rotor is thermally extended, the end of the rotor core never extends beyond the end of the stator core. With such a constructional arrangement, there is eliminated an excessive temperature rise at the ends of the stator core, and prevented an insulation deterioration of the stator winding and the burning of the stator core.
摘要翻译： 一种电动旋转机器具有定子，该定子具有定子铁心，所述定子铁芯具有在机器的轴向方向上具有给定层压厚度的层压铁板，以及缠绕在所述铁心上的定子绕组和可旋转地设置在所述定子内部的转子， 和转子绕组。 定子芯的轴向长度相对于转子芯的轴向长度选择，使得当转子热延伸时，转子芯的端部不会延伸超出定子芯的端部。 通过这样的结构，能够消除定子铁芯的端部的过度的温度上升，并且防止定子绕组的绝缘劣化和定子铁芯的燃烧。
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公开(公告)号：US4899145A
公开(公告)日：1990-02-06
申请号：US878659
申请日：1986-06-26
申请人： Hironori Okuda , Takashi Matsubara
发明人： Hironori Okuda , Takashi Matsubara
CPC分类号： H03M1/1066 , G01D5/2216 , H03M1/301
摘要： A rotary encoder comprises a rotator having ring-shaped multipole magnet and stator having magnetic field detecting sensors concentrically provided with the ring-shaped multipole magnet. The stator is provided with a plurality of zero-magnetostrictive amorphous ferromagnetic cores arrayed in correspondence to the magnetic pole pitch of the multipole magnet. Rotation angles of the rotor are detected by coils extended across the plurality of amorphous magnetic cores to be magnetically coupled with the same.
摘要翻译： 旋转编码器包括具有环形多极磁体和定子的旋转器，其具有同心设置有环形多极磁体的磁场检测传感器。 定子设置有多个对应于多极磁体的磁极间距排列的零磁致伸缩非晶铁磁芯。 通过在多个非晶磁芯上延伸的线圈与转子的磁耦合来检测转子的旋转角度。
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公开(公告)号：US4306165A
公开(公告)日：1981-12-15
申请号：US58626
申请日：1979-07-18
CPC分类号： H02K9/18
摘要： A cooling system for a rotary electric machine having a stator including a stator core and a stator frame for supporting the stator core and a rotor including a yoke, a plurality of salient magnetic poles mounted on the periphery of the yoke and shield plates bridging the tips of the adjacent magnetic poles wherein the cooling system comprises groups of air-discharging and air-charging ducts radially penetrating the stator core, each group of the ducts being axially aligned with a predetermined distance from each other and air-discharging windows formed in the shield plates at predetermined axial positions thereof, and the axial area of each group of the air-discharging ducts is larger than the axial area of the air-discharging window of the corresponding shield plate thereby increasing the flow rate of the cooling air through the rotary machine.
摘要翻译： 一种用于旋转电机的冷却系统，其具有定子，所述定子包括定子芯和用于支撑定子铁心的定子架，以及包括轭的转子，安装在所述轭的周边上的多个突出磁极和桥接所述尖端的屏蔽板 的相邻磁极，其中冷却系统包括径向穿过定子芯的排气和空气充气管的组，每组管道彼此轴向对齐并且形成在屏蔽层中的空气排出窗口 板在其预定的轴向位置处，并且每组排气管的轴向面积大于相应屏蔽板的排气窗的轴向面积，从而增加了通过旋转机器的冷却空气的流量 。
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公开(公告)号：US3997825A
公开(公告)日：1976-12-14
申请号：US512924
申请日：1974-10-07
申请人： Kunio Miyasita , Hironori Okuda , Yasuyuki Sugiura , Takeo Maeda , Yasuo Matsuda , Kazuo Honda
发明人： Kunio Miyasita , Hironori Okuda , Yasuyuki Sugiura , Takeo Maeda , Yasuo Matsuda , Kazuo Honda
摘要： In the control of a synchronous motor driven by a power converter of voltage source type, the phase of the current flowing into the motor is detected and gate signals are produced on the basis of the phase of the current, so that the output frequency of the power converter is controlled by the gate signals so as to control the motor.
摘要翻译： 在由电压源式电力转换器驱动的同步电动机的控制中，检测流入电动机的电流的相位，并根据电流的相位产生门信号，使得输出频率 功率转换器由门信号控制，以控制电机。
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