公开(公告)号：US5453972A

公开(公告)日：1995-09-26

申请号：US10019

申请日：1993-01-27

申请人： Hiroshi Kanazawa ,  Fumio Tajima ,  Ryoichi Naganuma ,  Nobuyoshi Mutoh ,  Tadashi Takahashi ,  Hideki Nihei ,  Shunichi Tanae ,  Hideaki Horie ,  Syooichi Kawamata

发明人： Hiroshi Kanazawa ,  Fumio Tajima ,  Ryoichi Naganuma ,  Nobuyoshi Mutoh ,  Tadashi Takahashi ,  Hideki Nihei ,  Shunichi Tanae ,  Hideaki Horie ,  Syooichi Kawamata

IPC分类号： G11B7/085 ,  G11B17/028 ,  G11B17/34 ,  G11B19/04 ,  G11B19/20 ,  G11B19/28 ,  G11B25/04 ,  G11B33/08 ,  H02K21/14 ,  H02K21/24 ,  G11B7/12

CPC分类号： G11B17/0282 ,  G11B17/028 ,  G11B17/34 ,  G11B19/04 ,  G11B19/20 ,  G11B19/28 ,  G11B25/043 ,  G11B33/08 ,  G11B7/08505 ,  G11B7/08582 ,  H02K21/14 ,  H02K21/24

摘要： A portable-type disk apparatus for a 3.5-inch or less optical disk implemented in a thin, light-weight and miniaturized structure having a vibration-withstanding capability. An optical head assembly is disposed stationarily while an optical disk and a spindle motor for rotating the optical disk are disposed movably in a diametrical direction of the optical disk. The spindle motor is constituted by a brushless motor of a substantially semi-circular form in cross section and having a laterally truncated portion. The optical head assembly including an optical head and a laser circuit is disposed at the side of the laterally truncated portion.

摘要翻译： 一种用于3.5英寸或更小的光盘的便携式盘装置，其实现为具有耐振动能力的薄，轻重量和小型化结构。 一个光头组件被放置在一个光盘和一个用于旋转光盘的主轴电动机的位置上，可移动地设置在光盘的直径方向上。 主轴电动机由横截面为大致半圆形的无刷电动机构成，具有横向截断部分。 包括光学头和激光电路的光学头组件设置在横截面的一侧。

公开(公告)号：US5432644A

公开(公告)日：1995-07-11

申请号：US249659

申请日：1994-05-26

申请人： Fumio Tajima ,  Hiroshi Kanazawa ,  Hiroshi Katayama ,  Kazuo Ohnishi ,  Tadashi Takahashi ,  Nobuyoshi Mutoh ,  Shigeki Morinaga ,  Nobuyoshi Tsuboi ,  Hideki Nihei

发明人： Fumio Tajima ,  Hiroshi Kanazawa ,  Hiroshi Katayama ,  Kazuo Ohnishi ,  Tadashi Takahashi ,  Nobuyoshi Mutoh ,  Shigeki Morinaga ,  Nobuyoshi Tsuboi ,  Hideki Nihei

IPC分类号： G11B19/20 ,  G11B25/04 ,  H02K1/14 ,  H02K7/14 ,  H02K16/00 ,  H02K21/16 ,  H02K29/00 ,  H02K41/03 ,  G11B5/016

CPC分类号： G11B25/043 ,  G11B19/20 ,  H02K1/14 ,  H02K1/146 ,  H02K16/00 ,  H02K21/16 ,  H02K7/14 ,  H02K2201/15 ,  H02K41/03

摘要： A motor has a stator and a rotor, the stator having cores and drive coils which generate magnetic fields for rotating the rotor. The stator also has a yoke surrounding the rotor and the rotor is positioned such that it is closer to one part of the outer periphery of the yoke than another part of the outer periphery of the yoke. Such a motor is particularly suitable for use in a disk drive unit as a spindle motor for rotating the disk. Then an actuator for moving a head may be located adjacent the part of the outer periphery of the yoke which is closest to the rotor. This permits the head to approach closely the axis of rotation of the disk without the spindle motor interferring with the movement of the head. The continuous yoke prevents magnetic flux leakage from the spindle motor interferring with the actuator. The actuator may itself have a yoke integral with the yoke of the spindle motor, and/or other components in common.

摘要翻译： 电动机具有定子和转子，定子具有产生用于旋转转子的磁场的磁芯和驱动线圈。 定子还具有围绕转子的轭，并且转子被定位成使得其比轭的外周的另一部分更靠近轭的外周的一部分。 这样的电动机特别适用于作为用于旋转盘的主轴电动机的盘驱动单元。 然后，用于移动头部的致动器可以位于最靠近转子的轭的外周的部分附近。 这允许头靠近盘的旋转轴线，而主轴马达干涉头部的运动。 连续的轭防止主轴电机的磁通量泄漏与执行机构的干扰。 致动器本身可以具有与主轴电动机的轭架成一体的轭和/或共同的其它部件。

公开(公告)号：US4874053A

公开(公告)日：1989-10-17

申请号：US209998

申请日：1988-06-22

申请人： Hiroshi Kimura ,  Shotaro Naito ,  Kunio Miyashita ,  Yasuo Noto ,  Noboru Sugiura ,  Tadashi Takahashi ,  Hirohisa Yamamura ,  Seizi Yamashita ,  Syooichi Kawamata ,  Fumio Tajima ,  Shigeru Horikoshi

发明人： Hiroshi Kimura ,  Shotaro Naito ,  Kunio Miyashita ,  Yasuo Noto ,  Noboru Sugiura ,  Tadashi Takahashi ,  Hirohisa Yamamura ,  Seizi Yamashita ,  Syooichi Kawamata ,  Fumio Tajima ,  Shigeru Horikoshi

IPC分类号： B62D5/04 ,  B62D6/10 ,  B62D15/02 ,  G01L3/10 ,  G01L5/22

CPC分类号： B62D6/10 ,  G01L3/104 ,  G01L3/109 ,  G01L5/221 ,  B60G2204/11

摘要： A device for detecting a load torque using angle detectors fitted with a certain spacing on a shaft which is rotated by a drive source and on the basis of a relative angular difference of angles detected by the angle detectors. The device includes two rotary drums or discs fitted with a certain spacing on the drive side and load side of the shaft, with a plurality of magnetic poles for generating magnetic signals being formed on the surface thereof, and a magnetic sensor disposed to confront the surface of the rotary drums or discs, with magnetic resistance effect elements which vary in internal resistance in response to the magnetism of the magnetic poles being provided thereon. The amount of torsion created by the load on the load side of the rotary shaft is measured as a phase difference of outputs of the magnetic sensor, and the torque is detected in terms of the angular difference between the magnetic drums or discs. The device is operative to detect a torque in both storage and rotation, and capable of detection within a period of magnetic signal, whereby high-accuracy, high-resolution torque detection is made possible.

摘要翻译： 一种用于使用角度检测器检测负载转矩的装置，所述角度检测器在由驱动源旋转的轴上并且基于由角度检测器检测的角度的相对角度差异在轴上具有一定间隔。 该装置包括两个旋转鼓或盘，其在驱动侧和负载侧安装一定间隔，在其表面上形成有用于产生磁信号的多个磁极和设置成面对表面的磁传感器 具有响应于设置在其上的磁极的磁性而在内阻中变化的磁阻效应元件。 由旋转轴的负载侧上的负载产生的扭转量作为磁传感器的输出的相位差被测量，并且根据磁鼓或盘之间的角度差来检测转矩。 该装置用于检测存储和旋转两者中的转矩，并且能够在磁信号的一段时间内进行检测，由此可以实现高精度，高分辨率的扭矩检测。

公开(公告)号：US5549172A

公开(公告)日：1996-08-27

申请号：US234424

申请日：1994-04-28

申请人： Nobuyoshi Mutoh ,  Ryoso Masaki ,  Taizou Miyazaki ,  Fumio Tajima ,  Tsutomu Ohmae

发明人： Nobuyoshi Mutoh ,  Ryoso Masaki ,  Taizou Miyazaki ,  Fumio Tajima ,  Tsutomu Ohmae

IPC分类号： B60L11/18 ,  B60L15/20 ,  B60K1/02

CPC分类号： B60L15/20 ,  B60L11/18 ,  Y02T10/645 ,  Y02T10/646 ,  Y02T10/648 ,  Y02T10/7005 ,  Y02T10/7275

摘要： The object of the present invention is to provide an electric drive system which ensures effective generation of torque from the start to the maximum speed, and extended cruising distance and upgraded running performances. The drive system according to the present invention is characterized in that, in a electric vehicle to be driven by the wheels which are driven by the rotary output of two or more motors, said two or more motors comprise at least two different types of motors, and the system is provided with the control means to adjust the share of the vehicle driving force to be generated by each of said motors in conformity to the running state of said vehicle. These two or more motors comprise a combination of a low speed drive motor and high speed drive motor, and a highly efficient motor is used as said low speed motor, while a motor having a greater capacity and greater base speed than said low speed drive motor is used as the high speed drive motor. The share of the driving force of said vehicle is controlled by the control means such that up to the maximum torque is generated by said low speed drive motor, with the remaining torque generated by said high speed drive motor.

摘要翻译： 本发明的目的是提供一种电动驱动系统，其确保从起始到最大速度的转矩的有效产生，以及延长的巡航距离和升级的行驶性能。 根据本发明的驱动系统的特征在于，在由两个或更多个电动机的旋转输出驱动的由车轮驱动的电动车辆中，所述两个或更多个电动机包括至少两种不同类型的电动机， 并且该系统设置有控制装置，以根据所述车辆的行驶状态来调节由每个所述电动机产生的车辆驱动力的份额。 这两个或更多个电动机包括低速驱动电动机和高速驱动电动机的组合，并且使用高效电动机作为所述低速电动机，而具有比所述低速驱动电动机更大的容量和更大的基准速度的电动机 用作高速驱动电机。 所述车辆的驱动力的份额由控制装置控制，使得由所述低速驱动电动机产生的最大转矩由所述高速驱动电动机产生的剩余转矩产生。

公开(公告)号：US5175479A

公开(公告)日：1992-12-29

申请号：US654194

申请日：1991-02-12

申请人： Fumio Tajima ,  Hiroshi Katayama ,  Taizou Miyazaki ,  Shigeki Morinaga ,  Nobuyoshi Mutoh ,  Seiichi Narushima

发明人： Fumio Tajima ,  Hiroshi Katayama ,  Taizou Miyazaki ,  Shigeki Morinaga ,  Nobuyoshi Mutoh ,  Seiichi Narushima

IPC分类号： G11B5/588 ,  G05B13/02 ,  G05B19/23 ,  G05D3/12 ,  G11B5/55 ,  G11B15/467 ,  H02P6/06 ,  H02P6/08 ,  H02P27/06

CPC分类号： G11B5/5508 ,  G05B13/024 ,  G05B19/231 ,  G05B19/234

摘要： There is provided position error computing means for sampling an error value between a position detecting signal derived from means for detecting the position of a moving body and a position command signal supplied from outside and for computing a position error value on the basis of two or more past values of said error values. There is also provided a position control apparatus in which the magnitude of a gain of a position control loop is changed according to the above described position error value. Further, there is also provided a signal reproducing apparatus or a magnetic signal reproducing apparatus using the above described position control.

摘要翻译： 提供了一种位置误差计算装置，用于对从用于检测移动体的位置的装置和从外部提供的位置指令信号导出的位置检测信号之间的误差值进行采样，并且基于两个或更多个来计算位置误差值 所述错误值的过去值。 还提供了一种位置控制装置，其中位置控制环路的增益的大小根据上述位置误差值而改变。 此外，还提供了使用上述位置控制的信号再现装置或磁信号再现装置。

公开(公告)号：US5298841A

公开(公告)日：1994-03-29

申请号：US687239

申请日：1991-04-18

申请人： Hiroshi Katayama ,  Fumio Tajima ,  Taizo Miyazaki ,  Shigeki Morinaga ,  Nobuyoshi Mutoh ,  Seiichi Narushima ,  Yuji Sato ,  Toshio Nakamoto ,  Takashi Takahashi ,  Toshio Osada

发明人： Hiroshi Katayama ,  Fumio Tajima ,  Taizo Miyazaki ,  Shigeki Morinaga ,  Nobuyoshi Mutoh ,  Seiichi Narushima ,  Yuji Sato ,  Toshio Nakamoto ,  Takashi Takahashi ,  Toshio Osada

IPC分类号： H02P6/06 ,  H02P6/10 ,  H02P5/00

CPC分类号： H02P6/06 ,  H02P6/10 ,  Y10S388/907

摘要： A speed control apparatus in which for sampling features of a speed fluctuation and generating a speed fluctuation correcting signal, an arithmetic operation can be simplified and can be performed by an inexpensive arithmetic and operation unit, thus requiring no expensive arithmetic operation unit. The speed control apparatus is also capable of reducing torque ripples and speed fluctuations quickly even when the load of an object to be controlled is changed.

摘要翻译： 一种速度控制装置，其中为了对速度波动的特征进行采样并产生速度波动校正信号，可以简化算术运算，并且可以由廉价的运算单元执行，从而不需要昂贵的算术运算单元。 即使当要控制的物体的负载改变时，速度控制装置也能够快速地减小扭矩波动和速度波动。

公开(公告)号：US08040010B2

公开(公告)日：2011-10-18

申请号：US12372752

申请日：2009-02-18

申请人： Akinori Kamiya ,  Noriaki Hino ,  Fumio Tajima ,  Tsutomu Miyoshi ,  Hideki Nihei

发明人： Akinori Kamiya ,  Noriaki Hino ,  Fumio Tajima ,  Tsutomu Miyoshi ,  Hideki Nihei

IPC分类号： H02K1/27

CPC分类号： H02K1/2766 ,  B60L7/14 ,  B60L11/123 ,  B60L11/14 ,  B60L15/2009 ,  B60L2210/40 ,  B60L2240/12 ,  B60L2240/423 ,  B60L2260/28 ,  B60L2270/145 ,  H02K1/246 ,  H02K1/276 ,  H02K21/14 ,  H02K29/03 ,  Y02T10/6217 ,  Y02T10/641 ,  Y02T10/645 ,  Y02T10/7077 ,  Y02T10/7241 ,  Y02T10/7275

摘要： The present invention comprises a stator, and a rotor which is disposed oppositely to the stator with a gap interposed. The stator comprises a stator core, and a distributed stator winding mounted to the stator core. The stator core comprises a ring-like yoke core, and a plurality of teeth cores which protrude from the yoke core in the radial direction. The rotor comprises a rotor core, and a plurality of permanent magnets embedded in the rotor core. A pair of non-magnetic portions is created inside the rotor core and on both sides of the circumferential width of a permanent magnet for one magnetic pole. In the rotor core located on the stator side of the pair of non-magnetic portions, a pair of magnetic paths is created as the result of the creation of the pair of non-magnetic portions. Furthermore, a groove or hole is created on the outer circumferential portion of the rotor core and between the adjacent magnetic poles.

摘要翻译： 本发明包括定子和转子，该转子与定子相对设置有间隙。 定子包括定子芯和安装在定子芯上的分布式定子绕组。 定子铁芯包括环形轭铁芯和从偏转铁芯沿径向突出的多个齿芯。 转子包括转子芯和嵌入转子芯中的多个永磁体。 在转子铁芯的内侧和用于一个磁极的永久磁铁的周向宽度的两侧形成一对非磁性部分。 在位于一对非磁性部分的定子侧上的转子芯中，由于产生一对非磁性部分而产生一对磁路。 此外，在转子铁芯的外周部和相邻的磁极之间产生槽或孔。

公开(公告)号：US20090230802A1

公开(公告)日：2009-09-17

申请号：US12372752

申请日：2009-02-18

申请人： Akinori Kamiya ,  Noriaki Hino ,  Fumio Tajima ,  Tsutomu Miyoshi ,  Hideki Nihei

发明人： Akinori Kamiya ,  Noriaki Hino ,  Fumio Tajima ,  Tsutomu Miyoshi ,  Hideki Nihei

IPC分类号： H02K1/27

CPC分类号： H02K1/2766 ,  B60L7/14 ,  B60L11/123 ,  B60L11/14 ,  B60L15/2009 ,  B60L2210/40 ,  B60L2240/12 ,  B60L2240/423 ,  B60L2260/28 ,  B60L2270/145 ,  H02K1/246 ,  H02K1/276 ,  H02K21/14 ,  H02K29/03 ,  Y02T10/6217 ,  Y02T10/641 ,  Y02T10/645 ,  Y02T10/7077 ,  Y02T10/7241 ,  Y02T10/7275

摘要： The present invention comprises a stator, and a rotor which is disposed oppositely to the stator with a gap interposed. The stator comprises a stator core, and a distributed stator winding mounted to the stator core. The stator core comprises a ring-like yoke core, and a plurality of teeth cores which protrude from the yoke core in the radial direction. The rotor comprises a rotor core, and a plurality of permanent magnets embedded in the rotor core. A pair of non-magnetic portions is created inside the rotor core and on both sides of the circumferential width of a permanent magnet for one magnetic pole. In the rotor core located on the stator side of the pair of non-magnetic portions, a pair of magnetic paths is created as the result of the creation of the pair of non-magnetic portions. Furthermore, a groove or hole is created on the outer circumferential portion of the rotor core and between the adjacent magnetic poles.

摘要翻译： 本发明包括定子和转子，该转子与定子相对设置有间隙。 定子包括定子芯和安装在定子芯上的分布式定子绕组。 定子铁芯包括环形轭铁芯和从偏转铁芯沿径向突出的多个齿芯。 转子包括转子芯和嵌入转子芯中的多个永磁体。 在转子铁芯的内侧和用于一个磁极的永久磁铁的周向宽度的两侧形成一对非磁性部分。 在位于一对非磁性部分的定子侧上的转子芯中，由于产生一对非磁性部分而产生一对磁路。 此外，在转子铁芯的外周部和相邻的磁极之间产生槽或孔。

公开(公告)号：US20070267997A1

公开(公告)日：2007-11-22

申请号：US11798308

申请日：2007-05-11

申请人： Hiroshi Kanazawa ,  Fumio Tajima ,  Kyoko Honbo ,  Shinichi Fujino ,  Akihiro Saito

发明人： Hiroshi Kanazawa ,  Fumio Tajima ,  Kyoko Honbo ,  Shinichi Fujino ,  Akihiro Saito

IPC分类号： H02J7/00 ,  B60R16/04 ,  G05D11/00

CPC分类号： H02J7/16 ,  Y02T10/7016

摘要： The present invention provides a power generation controller for a generator that conducts appropriate power generation control of a spirally wound battery. The power generation controller 150 is constructed so that in order for an output current from the generator 100 to match a set target current, the controller 150 controls power generation of the generator 100 by controlling a field current supplied to a field winding of the generator 100.

摘要翻译： 本发明提供一种发电机的发电控制器，该发电机对螺旋卷绕的电池进行适当的发电控制。 发电控制器150被构造成使得为了使来自发电机100的输出电流与设定的目标电流相匹配，控制器150通过控制提供给发电机100的励磁绕组的励磁电流来控制发电机100的发电 。

公开(公告)号：US20080018289A1

公开(公告)日：2008-01-24

申请号：US11780382

申请日：2007-07-19

申请人： Fumio Tajima ,  Shigeru Kakugawa ,  Masashi Kitamura ,  Shoichi Kawamata ,  Hiroshi Kanazawa ,  Takayuki Koyama ,  Shoji Ohiwa ,  Osamu Sekiguchi

发明人： Fumio Tajima ,  Shigeru Kakugawa ,  Masashi Kitamura ,  Shoichi Kawamata ,  Hiroshi Kanazawa ,  Takayuki Koyama ,  Shoji Ohiwa ,  Osamu Sekiguchi

IPC分类号： H02P6/18

CPC分类号： H02P6/18 ,  H02P23/14

摘要： A single-phase permanent magnet motor control apparatus, in particular, a low price, flat output torque, low vibration, low noise single-phase permanent magnet motor control apparatus, and a fan and pump using such a single-phase permanent magnet motor control apparatus are provided. In a single-phase permanent magnet motor control apparatus for driving a single-phase permanent magnet motor by using a DC power supply, a converter for converting DC to AC, and a control circuit for controlling the converter, a motor current measuring unit, a terminal voltage measuring unit, a correction unit for correcting an impedance drop in motor constants, and a calculation unit for finding an induced voltage to be obtained by control are included, and a polarity of a terminal voltage is determined on the basis of a value of the found induced voltage.

摘要翻译： 单相永磁电动机控制装置，特别是低价格，平输出转矩，低振动，低噪声单相永磁电动机控制装置，以及使用这种单相永磁电动机控制的风扇和泵 提供设备。 在使用DC电源驱动单相永磁电动机的单相永久磁铁电动机控制装置中，将DC变换为AC的转换器以及用于控制转换器的控制电路，电动机电流测量单元 端子电压测量单元，用于校正电动机常数中的阻抗下降的校正单元，以及用于求出通过控制获得的感应电压的计算单元，并且基于 发现感应电压。