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1.发明授权Magnetron comprising ferromagnetic material members axially magnetized in opposite directions 失效包含以非对称方向磁化的纤维材料成员的磁铁
公开(公告)号：US4166235A
公开(公告)日：1979-08-28
申请号：US841915
申请日：1977-10-13
申请人： Seizi Yamashita , Tunehiro Endo , Yoshio Ishida
发明人： Seizi Yamashita , Tunehiro Endo , Yoshio Ishida
摘要： A magnetron comprising a cathode, an anode cylinder having a plurality of vanes disposed around the cathode for defining an interaction space between the cathode and the vanes, and a pair of permanent magnets disposed opposite to each other for producing a magnetic field in the interaction space. One of the permanent magnets is annular in shape, and this annular magnet is magnetized relative to the other magnet so that their same poles confront each other thereby reducing the size of the magnetron.
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公开(公告)号：US4409506A
公开(公告)日：1983-10-11
申请号：US286841
申请日：1981-07-27
CPC分类号： H02K15/0012 , H02K1/02 , H02K1/148 , H02K1/2706 , H02K17/165 , H02K2201/06
摘要： When an induction motor is speed-controlled with a variable frequency power supply including thyristor inverters, operating loss due to harmonics components is increased in a rotor of the induction motor. In order to diverge additional operating loss into an appreciable depth of the rotor to thereby suppress the increase in the operating loss, the rotor comprises a cylindrical member having a circumferential resistivity which is larger than axial and radial resistivities and circumferential permeability which is smaller than axial and radial permeabilities, and a core disposed in the cylindrical member and having an axial permeability which is smaller than circumferential and radial permeabilities.
摘要翻译： 当感应电动机由包括晶闸管逆变器的可变频率电源进行速度控制时，感应电动机的转子中由于谐波成分引起的工作损耗增加。 为了将额外的工作损耗分散到转子的深度可观的深度，从而抑制了工作损耗的增加，转子包括圆柱形构件，该圆柱形构件的圆周电阻率大于轴向和径向的电阻率和小于轴向的圆周磁导率 和径向渗透性，以及设置在圆柱形构件中并且具有小于圆周和径向渗透性的轴向渗透性的芯。
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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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4.发明授权Apparatus for magnetically detecting position or speed or moving body utilizing bridge circuit with series connected MR elements 失效利用具有串联连接的MR元件的桥接电路来磁性检测位置或速度或移动体的装置
公开(公告)号：US4818939A
公开(公告)日：1989-04-04
申请号：US19545
申请日：1987-02-26
IPC分类号： G01B7/00 , G01D5/14 , G01D5/16 , G01D5/18 , G01D5/244 , G01D5/245 , G01P3/487 , G01B7/14 , G01P3/42
CPC分类号： G01D5/145 , G01D5/24438 , G01D5/24476 , G01D5/2451 , G01P3/487
摘要： Magnetic poles are provided continuously with a pitch .lambda. on the peripheral portion of a drum rotated in accordance with a movement of a moving body. A magnetic sensor is provided in opposition to these poles. The sensor is formed of two magnetoresistive element pairs which are spaced from each other at .lambda./6, and the two elements in each pair are arranged in positions spaced from each other at .lambda./2. The two elements in each pair are connected in series to form a bridge circuit. The signals obtained from the nodes of the series-connected elements in the two element pairs are differentially amplified so that third harmonic wave components are eliminated, and a signal having no distortion and representative of the position or speed of the moving body can be obtained.
摘要翻译： 在根据移动体的运动旋转的滚筒的周边部分上连续地设有螺距λ的磁极。 提供与这些极相对的磁传感器。 传感器由两个磁阻元件对形成，它们以λ/ 6彼此间隔开，并且每对中的两个元件被布置在以λ/ 2彼此间隔开的位置。 每对中的两个元件串联连接以形成桥接电路。 从两个元件对中的串联元件的节点获得的信号被差分放大，从而消除了三次谐波分量，并且可以获得没有失真并且代表移动体的位置或速度的信号。
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公开(公告)号：US4875539A
公开(公告)日：1989-10-24
申请号：US176151
申请日：1988-03-31
申请人： Toshimi Abukawa , Kazuo Tahara , Katsuji Murumoto , Toshiyuki Koterazawa , Mitsuyuki Hombu , Tadashi Takahashi , Shuichi Takamatsu , Hisatugu Ishikura , Hiroshisa Yamamura , Toru Tatsuzaki , Tsutomu Ohmae , Toshiaki Okuyama , Seizi Yamashita , Shigeki Saito , Masato Sakai
发明人： Toshimi Abukawa , Kazuo Tahara , Katsuji Murumoto , Toshiyuki Koterazawa , Mitsuyuki Hombu , Tadashi Takahashi , Shuichi Takamatsu , Hisatugu Ishikura , Hiroshisa Yamamura , Toru Tatsuzaki , Tsutomu Ohmae , Toshiaki Okuyama , Seizi Yamashita , Shigeki Saito , Masato Sakai
IPC分类号： B62D5/04
CPC分类号： B62D5/046
摘要： An electric power steering control system includes an electric motor for producing an assisting torque for the vehicle steering system through a reduction gear, a steering torque sensor fitted on the steering shaft, a controller for controlling the input to the motor in accordance with the torque sensor output, a battery for supplying power to the controller, and a voltage step-up circuit connected to the battery for driving the motor at a voltage higher than the battery voltage. The controller drives the motor at a high voltage.
摘要翻译： 一种电动助力转向控制系统，包括：电动机，用于通过减速齿轮产生用于车辆转向系统的辅助转矩，安装在转向轴上的转向扭矩传感器;控制器，用于根据转矩传感器控制对电动机的输入 输出，用于向控制器供电的电池，以及连接到电池的升压电路，用于以高于电池电压的电压驱动电动机。 控制器以高电压驱动电机。
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公开(公告)号：US4857786A
公开(公告)日：1989-08-15
申请号：US178213
申请日：1988-04-06
申请人： Hideki Nihei , Kunio Miyashita , Kouichi Saitoh , Seizi Yamashita
发明人： Hideki Nihei , Kunio Miyashita , Kouichi Saitoh , Seizi Yamashita
摘要： The present invention provides a large-thrust stepping motor improved in thrust constant by provision of slots at equal intervals between adjacent N and S poles of a permanent magnet disposed on a movable member of the motor or by division of the winding for each phase of a stator of the motor into two or more sections to pass currents independently through the divisional sections in accordance with the speed of the motor.Further, the invention provides a large-thrust stepping motor using a field magnet having large magnetomotive force, the field magnet being formed by combination of a magnet substrate and permanent magnets independent from the magnet substrate.
摘要翻译： 本发明提供了一种大推力步进电动机，其通过在设置在电动机的可移动部件上的永久磁铁的相邻N极和S极之间以相等的间隔设置槽，或通过将绕组的相位分开 电机的定子分成两个或多个部分，以根据电机的速度独立地通过分割部分传递电流。 此外，本发明提供一种使用具有大磁动势的场磁体的大推力步进电机，所述磁场磁体通过磁体基板和与所述磁体基板无关的永磁体的组合而形成。
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公开(公告)号：US4451752A
公开(公告)日：1984-05-29
申请号：US387203
申请日：1982-06-10
CPC分类号： H02K23/24
摘要： In a stator provided with interpoles, a magnetic flux adjusting winding is provided adjacent to the radially inner end of each interpole core for adjusting the magnetic flux passing through the half of the circumferential width of the interpole core, so that the intensity of the magnetic flux passing through the radially inner end of the interpole core becomes substantially uniform along the end face of the interpole core, whereby the waveform of the commutating emf is simulated to that of the reactance voltage to widen the width of the no-spark zone during commutation thereby improving the commutation performance without appreciably modifying the original shape or structure of the stator.
摘要翻译： 在设置有极间极的定子中，磁通量调节绕组被设置成邻近每个极间磁芯的径向内端，用于调节通过极间磁芯的圆周宽度的一半的磁通量，使得磁通量的强度 通过极间隙芯的径向内端沿着极间磁芯的端面变得基本均匀，从而将换向电动势的波形模拟为电抗电压的波形，以在换向过程中加宽无火花区的宽度。 提高换向性能，而不会明显地改变定子的原始形状或结构。
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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：US4678971A
公开(公告)日：1987-07-07
申请号：US817623
申请日：1986-01-10
CPC分类号： H02K41/031
摘要： A linear motor comprises a first magnetic pole having a plurality of uneven magnetic pole teeth of magnetic material arranged longitudinally at predetermined regular intervals of length, and a second magnetic pole having a yoke and plurality of uneven magnetic pole teeth made of magnetic material opposed to the first magnetic pole with a slight gap and a coil wound on each magnetic pole tooth and the permanent magnets, in which the relative position of the first and second magnetic poles in the longitudinal direction can be varied. The longitudinal lengths of the protruded portion of the second magnetic pole are substantially equal with each other. The longitudinal length of the recessed portion of the second magnetic pole is set to about one-third of the longitudinal length of the protruded portion of the first magnetic pole. The number of the protruded portions of the first magnetic pole is set to be a multiple of two.
摘要翻译： 线性电动机包括：第一磁极，具有多个以规定的长度方向纵向布置的磁性材料的不均匀的磁极齿;以及具有磁轭的第二磁极和由磁性材料相对的磁性材料构成的多个不均匀的磁极齿 第一磁极具有微小的间隙，线圈缠绕在每个磁极齿和永磁体上，其中第一和第二磁极在纵向上的相对位置可以改变。 第二磁极的突出部分的纵向长度基本相等。 第二磁极的凹部的纵向长度被设定为第一磁极的突出部的纵向长度的大约三分之一。 第一磁极的突出部的数量被设定为2的倍数。
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公开(公告)号：US4403161A
公开(公告)日：1983-09-06
申请号：US188098
申请日：1980-09-17
CPC分类号： H02K1/276
摘要： A permanent magnet rotor used in a synchronous motor or the like comprising a shaft, an iron core and permanent magnets is disclosed. Each of the permanent magnets which is mounted on the hollow rotor core has an arc shape, and the radial center of the arc shape is positioned on the axis of the shaft or at a point slightly deviated from the shaft axis.
摘要翻译： 公开了一种用于包括轴，铁芯和永磁体的同步电动机等中的永磁转子。 安装在中空转子铁芯上的每个永磁体具有弧形，并且弧形的径向中心位于轴的轴线上或者位于稍微偏离轴线的点上。
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