公开(公告)号：US06707178B2

公开(公告)日：2004-03-16

申请号：US09999340

申请日：2001-12-03

申请人： Masafumi Sakamoto ,  Noriyoshi Kikuchi ,  Toru Kobayashi

发明人： Masafumi Sakamoto ,  Noriyoshi Kikuchi ,  Toru Kobayashi

IPC分类号： H02K700

CPC分类号： H02K37/04

摘要： A stator of the stepping motor of the invention includes an annular shaped yoke portion, a stator iron-core having twelve stator main poles each having a plurality of small teeth on the tip end thereof and stator coils wound in the stator iron-core as three-phase winding. The stator rotatably supports a hybrid type rotor having a cylindrical permanent magnet that is sandwiched between a pair of rotors each having pole teeth around the circumferential surface to be opposite to the small teeth. Second, third, fourth and fifth harmonic components are removed by composing cogging torque of the respective phases by means of the three-phase twelve-pole construction. Any one harmonic component of the cogging torque among the second to fifth harmonic components is independently erased by making a difference between the small teeth pitch and the rotor teeth pitch, thereby the selected harmonic component is doubly erased.

摘要翻译： 本发明的步进电动机的定子包括环形磁轭部分，定子铁芯，其定子铁心具有十二个定子主磁极，每个定子主磁极在其末端具有多个小齿，定子铁芯缠绕在定子铁芯中三个 相绕组。 定子可旋转地支撑具有圆柱形永磁体的混合型转子，该圆柱形永久磁铁被夹在一对转子之间，每个转子在圆周表面周围具有与小齿相对的极齿。 第二，第三，第四和第五谐波分量通过三相十二极结构构成各相的齿槽转矩来去除。 通过使小齿间距与转子齿距之间的差异来独立地消除第二至第五谐波分量之间的齿槽转矩的任何一个谐波分量，从而选择的谐波分量被双重擦除。

公开(公告)号：US06633105B2

公开(公告)日：2003-10-14

申请号：US10104864

申请日：2002-03-22

申请人： Kazuo Ohnishi ,  Masafumi Sakamoto ,  Noriyoshi Kikuchi

发明人： Kazuo Ohnishi ,  Masafumi Sakamoto ,  Noriyoshi Kikuchi

IPC分类号： H02K3700

CPC分类号： H02K37/14 ,  H02K1/146

摘要： A permanent magnet motor having a stator and a permanent magnet rotor facing the stator with a gap therebetween, the stator having a plurality of stator magnetic poles extending radially toward a peripheral surface of the rotor, s number of small stator teeth formed on a tip end of each of the magnetic poles, and exciting windings of m phases wound around the stator magnetic poles. The rotor having a cylindrical permanent magnet having pieces of N pole and pieces of S pole arranged alternately in a peripheral direction thereof at equal pitches, wherein a pitch of the small stator teeth is 1±1/(2ms) times larger than a pitch of the rotor magnetic pole pairs. The width of the small stator tooth is 37˜47% of the magnetic pole pitch. A depth of the groove formed between the adjacent small stator teeth is more than 15 times larger than the length of the air gap between the stator and the rotor.

摘要翻译： 一种永磁电动机，其具有定子和与定子相对的定子的永久磁铁转子，其间具有间隙，所述定子具有径向朝向所述转子的周面延伸的多个定子磁极，形成在前端的多个小定子齿 的每个磁极和缠绕在定子磁极上的m相的励磁绕组。 转子具有圆柱形永磁体，其圆柱形永磁体具有N极和S极片，其圆周方向以相等的间距交替布置，其中小定子齿的间距是比1的间距大1±1 /（2ms）倍 转子磁极对。 小定子齿的宽度为磁极间距的37〜47％。 在相邻的小定子齿之间形成的槽的深度比定子和转子之间的气隙的长度大15倍以上。

公开(公告)号：USD686990S1

公开(公告)日：2013-07-30

申请号：US29426945

申请日：2012-07-12

申请人： Noriyoshi Kikuchi ,  Akinori Kojima ,  Eiji Kaneko

设计人： Noriyoshi Kikuchi ,  Akinori Kojima ,  Eiji Kaneko

公开(公告)号：US5305242A

公开(公告)日：1994-04-19

申请号：US67920

申请日：1993-05-27

申请人： Noriyoshi Kikuchi ,  Masayuki Suetomi

发明人： Noriyoshi Kikuchi ,  Masayuki Suetomi

IPC分类号： G01R23/16 ,  G05F1/00 ,  H02J3/00 ,  G06J1/00

CPC分类号： G01R23/16

摘要： An AC power supply apparatus for obtaining sampled data required for the FFT (Fast Fourier Transformation) by an A/D converter. Since a clock pulse train for forming an output voltage (power supply output) is used as sample clock pulses, sampled data associated with exactly one period can be obtained. This eliminates the need for the window processing. This makes it possible to provide a low cost, error-free apparatus.

摘要翻译： 一种AC电源装置，用于通过A / D转换器获得FFT（快速傅里叶变换）所需的采样数据。 由于用于形成输出电压（电源输出）的时钟脉冲串用作采样时钟脉冲，因此可以获得与正好一个周期相关联的采样数据。 这消除了窗口处理的需要。 这使得可以提供低成本，无错误的装置。

公开(公告)号：US06791291B2

公开(公告)日：2004-09-14

申请号：US10259150

申请日：2002-09-27

申请人： Shinji Shimizu ,  Noriyoshi Kikuchi ,  Katsuhiro Yamazoe ,  Takahiro Kobiki

发明人： Shinji Shimizu ,  Noriyoshi Kikuchi ,  Katsuhiro Yamazoe ,  Takahiro Kobiki

IPC分类号： B25J916

CPC分类号： B25J9/1615 ,  G05B2219/39236 ,  G05B2219/39251 ,  G05B2219/40234

摘要： In an industrial robot having a plurality of arms, each arm is coupled with other elements such as a mounting base, another arm, a robotic hand, and revolved by a motion of a revolving joint. A motor for moving the revolving joint, an encoder for sensing a rotation angle of a drive shaft of the motor, and a control circuit for controlling the driving of the motor are provided on the same arm. A signal cable for transmitting a sensing signal of the encoder to the control circuit is terminated at the control circuit on the same arm. There is no need to align the signal cable from the encoder to a main control circuit provided in the mounting base.

摘要翻译： 在具有多个臂的工业机器人中，每个臂与诸如安装基座，另一个臂，机器人手的其它元件联接，并且由旋转接头的运动旋转。 用于移动旋转接头的电动机，用于感测电动机的驱动轴的旋转角度的编码器和用于控制电动机的驱动的控制电路设置在同一个臂上。 用于将编码器的感测信号发送到控制电路的信号电缆在同一个臂上的控制电路处终止。 无需将编码器的信号电缆与安装基座中提供的主控制电路对齐。

公开(公告)号：US06674187B2

公开(公告)日：2004-01-06

申请号：US10032069

申请日：2001-12-31

申请人： Kouki Isozaki ,  Yoji Unoki ,  Noriyoshi Kikuchi

发明人： Kouki Isozaki ,  Yoji Unoki ,  Noriyoshi Kikuchi

IPC分类号： H02K3700

CPC分类号： H02K37/04

摘要： Disclosed is an inner rotor or outer rotor hybrid stepping motor of 6-phase/6 m-pole type or 10-phase/10 m-pole type. The motor includes a stator that has 6 m or 10 m pieces of magnetic poles and a rotor that is rotatably supported by the stator. Excitation windings are wound around the stator magnetic poles. The stator magnetic pole is divided into two halves in the axial direction, one half has pole teeth being line-symmetric and the other half has pole teeth being asymmetric and deviated from the symmetric pole teeth by ¼ pitch. The positions of the symmetric half and the asymmetric half are inverted between the adjacent magnetic poles. The rotor has a first and second rotor units each of which includes a permanent magnet and first and second rotor magnetic poles around which pole teeth are formed with deviation of ½ pitch. The first and second units are connected in the axial direction through a non-magnetic material member such that they are deviated from each other by ¼ of rotor teeth pitch. In the case of 6 m-phase, number of the rotor pole teeth equals m(6n+1) or m(6n+2) where m and n are integers equal to or larger than 1.

摘要翻译： 公开了6相/ 6m极型或10相/ 10m极型的内转子或外转子混合式步进电动机。 电动机包括具有6m或10m的磁极的定子和由定子可旋转地支撑的转子。 励磁绕组缠绕在定子磁极周围。 定子磁极在轴向分为两半，一半具有线对称的极齿，另一半具有非对称的极齿，并与对称极齿偏离1/4间距。 对称半部和不对称半部的位置在相邻磁极之间反转。 转子具有第一和第二转子单元，每个转子单元包括永磁体，第一和第二转子磁极围绕其以1/2间距的偏差形成极齿。 第一和第二单元通过非磁性材料构件沿轴向连接，使得它们彼此相差1/4转子齿间距。 在6m相的情况下，转子极齿的数量等于m（6n + 1）或m（6n + 2），其中m和n是等于或大于1的整数。