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公开(公告)号：US06903476B2
公开(公告)日：2005-06-07
申请号：US10196982
申请日：2002-07-17
申请人： Masafumi Sakamoto
发明人： Masafumi Sakamoto
摘要： A permanent magnet type three-phase stepping motor that is simple in construction, with vibration, a reduced unbalance force in the radial direction, and high torque that can be manufactured at a low cost is disclosed. The permanent magnet type three-phase stepping motor has a stator having 3L pieces of stator pole and a rotor having a permanent magnet magnetized so as to form a plurality (Nr) of N and S pole pairs, wherein a condition of 0.3≦{(Nr/π) (Ws+Wr)/(Ds+Dr)}≦0.5 is established, where L is an integer not less than 1, Nr is L (3n±1), n is an integer not less than 1, Da is an inner diameter of the stator, Dr is an outer diameter of the rotor, Ws is a width of the stator pole tooth, and Wr is a width of the rotor tooth.
摘要翻译： 公开了一种永磁式三相步进电动机，其结构简单，振动小，径向不平衡力减小，而且可以低成本制造的高转矩。 永磁式三相步进电动机具有定子3L的定子极和具有永久磁铁的转子，以便形成多个（N）的N极和S极对，其中0.3 <= { （Nr / pi）（Ws + Wr）/（Ds + Dr）} <= 0.5，其中L是不小于1的整数，Nr是L（3n±1），n是不小于1的整数 ，Da是定子的内径，Dr是转子的外径，Ws是定子极齿的宽度，Wr是转子齿的宽度。
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72.发明申请Toroidal-coil linear stepping motor, toroidal-coil linear reciprocating motor, cylinder compressor and cylinder pump using these motors 失效环形线圈线性步进电机，环形线圈直线往复电机，气缸压缩机和使用这些电机的气缸泵公开(公告)号：US20050023905A1
公开(公告)日：2005-02-03
申请号：US10901967
申请日：2004-07-30
申请人： Masafumi Sakamoto
发明人： Masafumi Sakamoto
摘要： A toroidal-coil multi-phase linear stepping motor includes a cylindrical housing, an axis coaxially arranged inside the housing, a cylindrical element supported by the axis and an armature fixed to the housing around the cylindrical element through an air gap in the radial direction. The axis is fixed to the housing and the cylindrical element linearly moves along the axis. The cylindrical element has toroidal permanent magnets that are alternately magnetized in N pole and S pole in the axial direction. The armature consists of armature units arranged around the axis. Each armature unit has a toroidal coil and a pair of armature yokes that hold the toroidal coil. Each armature yoke has toroidal magnetic teeth on its inner surface. The invention also includes a toroidal-coil single-phase linear reciprocating motor and a cylinder compressor and a cylinder pump using these motors.
摘要翻译： 环形线圈多相线性步进电动机包括圆柱形壳体，同轴地布置在壳体内的轴，由轴线支撑的圆柱形元件和通过径向方向上的空气间隙围绕圆柱形元件固定到壳体的衔铁。 轴固定在外壳上，圆柱形元件沿轴线直线移动。 圆柱形元件具有环形永磁体，其在轴向方向上交替地磁化为N极和S极。 电枢由围绕轴线布置的电枢单元组成。 每个电枢单元具有环形线圈和一对固定环形线圈的电枢磁轭。 每个电枢轭在其内表面上具有环形磁性齿。 本发明还包括环形线圈单相线性往复马达和气缸压缩机以及使用这些马达的气缸泵。
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公开(公告)号：US06850027B2
公开(公告)日：2005-02-01
申请号：US10389775
申请日：2003-03-18
摘要： The stepping motor driver comprises an inverter for feeding stepped currents to windings of a stepping motor, a position detector for obtaining a detected angle of a rotor of the stepping motor and a current controller for controlling the inverter. In a d-q rotational coordinate system in which the d-axis is in the direction of the magnetic flux of the rotor and the q-axis is in the direction perpendicular to the d-axis, an excitation angle for a winding is determined from a d-axis component and a q-axis component of a command current to the winding, a lead angle control signal is computed from the excitation angle, and a phase of an applied voltage to the stepping motor is controlled using the lead angle control signal.
摘要翻译： 步进电动机驱动器包括用于将步进电流馈送到步进电动机的绕组的逆变器，用于获得步进电动机的转子的检测角度的位置检测器和用于控制逆变器的电流控制器。 在d轴为转子磁通方向且q轴为d轴的方向的dq旋转坐标系中，绕组的励磁角由d 轴分量和对绕组的指令电流的q轴分量，从励磁角度计算引导角控制信号，并且使用引导角控制信号来控制对步进电机的施加电压的相位。
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公开(公告)号：US20040070304A1
公开(公告)日：2004-04-15
申请号：US10679409
申请日：2003-10-07
发明人： Yuuji Enomoto , Yasuaki Motegi , Masashi Kitamura , Yuji Takagai , Toshimi Abukawa , Takashi Ando
IPC分类号： H02K001/18
CPC分类号： H02K15/022 , H02K1/187
摘要： In an electric motor comprising a rotor, a stator, a stator core that constitutes the stator, a core section that constitutes the stator core, a plurality of split core blocks which constitute the core section, and a metallic connection housing that connects the split core blocks in dovetailed form to create one connected core section, the split core blocks are each formed of a laminated steel plate, in that the connection housing is formed of a material softer than the laminated steel plate, and the dovetailed connections at the connection housing are plastically deformed to remove the connection gap existing at each of the dovetailed connections.
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公开(公告)号：US20040061412A1
公开(公告)日：2004-04-01
申请号：US10666047
申请日：2003-09-18
发明人： Nobuhiro Ozawa , Takeshi Kirihara , Shinji Ikeda
IPC分类号： H02K013/00 , H01R039/38
CPC分类号： H01R39/381
摘要： A spring device consists of a coil spring case formed of right, left, back and front side plates and a spring receiving plate, a coil spring having a liner spring property, and a spring urging member for urging the coil spring into the coil spring case. A distance between the right and left side plates of the spring case is set a little larger than an outer diameter of the coil spring. A distance between the back and front side pates of the spring case is set about 1.5 to 2 times larger than the outer diameter of the coil spring, and a length of the spring case is set smaller than a free length of the coil spring. The coil spring is deformed and a non-linear spring property is obtained when the coil spring is urged through the spring urging member.
摘要翻译： 弹簧装置包括由右，左，后和前侧板形成的螺旋弹簧壳体和弹簧接收板，具有衬垫弹簧特性的螺旋弹簧和用于将螺旋弹簧推入螺旋弹簧壳体的弹簧推动构件 。 弹簧壳体的右侧板和左侧板之间的距离被设定为比螺旋弹簧的外径稍大。 弹簧箱的后侧和前侧之间的距离设定为比螺旋弹簧的外径大约1.5至2倍，并且弹簧壳体的长度被设定为小于螺旋弹簧的自由长度。 当螺旋弹簧通过弹簧推动构件被推动时，螺旋弹簧变形并且获得非线性的弹簧特性。
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公开(公告)号：US20030155886A1
公开(公告)日：2003-08-21
申请号：US10080131
申请日：2002-02-21
发明人： Shoji Ohiwa , Motoi Otsuka
IPC分类号： H02P001/24 , H02P001/42 , H02P003/18 , H02P005/28 , H02P007/36
CPC分类号： H02P6/28 , Y10S388/915
摘要： A fan motor driving circuit of the present invention comprises a device for detecting a power source voltage and outputting a voltage in proportion to a difference between the power source voltage and a predetermined rated voltage when the power source voltage is elevated over the rated voltage, and a device for controlling a rotary speed of a fan motor to a predetermined value by varying an elementary signal for determining the rotary speed of the fan motor according to an output voltage of the power source voltage detecting means automatically when the power source voltage is elevated over a predetermined value.
摘要翻译： 本发明的风扇电动机驱动电路包括：当电源电压升高超过额定电压时，用于检测电源电压并输出与电源电压和预定额定电压之间的差成比例的电压的装置，以及 用于通过根据电源电压检测装置的输出电压来改变用于确定风扇电动机的转速的基本信号，当电源电压升高时，自动地将风扇电动机的转速控制到预定值 预定值。
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公开(公告)号：US20030060768A1
公开(公告)日：2003-03-27
申请号：US10224912
申请日：2002-08-21
IPC分类号： A61M037/00
CPC分类号： A61M5/1456 , Y10S128/01
摘要： A first sensor (13-1), the mounting position of the first sensor (13-1) being recognized as a counting number of instruction pulses to a pulse motor (3), is arranged along a plate (11) with slits of an encoder at a portion between a position where a pushing holder (7) is connected to a plunger (9) for the liquid infusion, and a start position where the pushing holder (7) is separated from the plunger (9). A counting means (16) for counting encoder pulses from the encoder, is reset when a first sensor (13-1) is detected by a position detecting device (14) moved together with the pushing holder (7), and started to count the encoder pulses according to the movement of the pushing holder (7). A time to complete the liquid infusion is calculated by using a distance between the position where the plunger (9) is connected to the holder (7) and a liquid infusion finish position proper to the syringe, and a predetermined liquid infusion speed.
摘要翻译： 第一传感器（13-1）将第一传感器（13-1）的安装位置识别为脉冲电机（3）的指令脉冲的计数数，沿着板（11）布置，具有 在推动保持器（7）与用于液体灌注的柱塞（9）连接的位置之间的部分处的编码器以及推动保持器（7）与柱塞（9）分离的起始位置。 当通过与推动保持器（7）一起移动的位置检测装置（14）检测到第一传感器（13-1）时，用于对来自编码器的编码器脉冲进行计数的计数装置（16）被复位，并开始计数 编码器脉冲根据推动保持器（7）的移动。 通过使用柱塞（9）与保持器（7）连接的位置与注射器适当的液体输注完成位置之间的距离和预定的液体输注速度来计算完成液体输注的时间。
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公开(公告)号：US20030011147A1
公开(公告)日：2003-01-16
申请号：US10244331
申请日：2002-09-16
发明人： Masashi Ochiai , Seiji Kojima , Kiyoshi Hasegawa
IPC分类号： B01F007/16
CPC分类号： F16C11/106 , B01F13/04 , B01F13/047 , Y10T279/20 , Y10T279/23 , Y10T403/32196 , Y10T403/32721 , Y10T403/32737 , Y10T403/32754
摘要： An agitator comprises a main body for supporting rotatably a rotary shaft, a chuck for connecting detachably an agitating rod with the rotary shaft, starting means for starting the rotation of the rotary shaft when the chuck is covered with a chuck cover, and locking means for locking rotary shaft when the chuck is not covered with the chuck cover. The chuck cover is removed from the main body when an external force larger than a predetermined value is applied to the chuck cover. The starting means comprises a permanent magnet provided on the outer periphery of a disk hub and a magnetic sensor provided on the main body so that an output is generated to start the driving source only when the chuck cover is moved to cover the chuck. The locking means comprises a hole formed in the rotary shaft, an eccentric cam to be rotated by the chuck cover, and a lock pin which is moved by the eccentric cam so as to be inserted into the hole of the rotary shaft when the chuck is not covered with the chuck cover. A universal joint comprises a cavity formed in a joint case, a planar plate fitted in the cavity, a spherical member arranged in the cavity so that it is held by a spherical surface receiving seat and a portion of the planar plate, and pressure means for pressing the planar plate toward the spherical surface receiving seat.
摘要翻译： 搅拌器包括用于可旋转地支撑旋转轴的主体，用于将搅拌棒与旋转轴可拆卸地连接的卡盘;当卡盘被卡盘盖覆盖时用于开始旋转轴的旋转的启动装置，以及用于 当卡盘未被卡盘盖覆盖时锁定旋转轴。 当将大于预定值的外力施加到卡盘盖时，卡盘盖从主体移除。 启动装置包括设置在盘毂的外周上的永磁体和设置在主体上的磁传感器，使得仅当卡盘盖移动以覆盖卡盘时才产生输出才能起动驱动源。 锁定装置包括形成在旋转轴中的孔，由卡盘盖旋转的偏心凸轮以及当偏心凸轮移动时锁定销，以便当卡盘位于旋转轴时被插入旋转轴的孔中 不被卡盘盖覆盖。 万向接头包括形成在接头壳体中的空腔，安装在空腔中的平板，设置在空腔中的球形构件，以便由球形表面接收座和平板的一部分保持，压力装置 将平板压向球形接收座。
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公开(公告)号：US20020079749A1
公开(公告)日：2002-06-27
申请号：US09861913
申请日：2001-05-21
申请人： Japan Servo Co. Ltd.
发明人： Kazuo Ohnishi , Masafumi Sakamoto , Koki Isozaki
IPC分类号： H02K037/00
CPC分类号： H02K37/18
摘要： In the three-phase hybrid type stepping motor according to the present invention, the small stator teeth formed on the tip end of the stator pole are classified to sets of two or three small teeth, the third harmonic vector sum of the permeances of the small teeth in each set is determine to substantially zero, and the third, fifth and sixth harmonic vector sum of the permeances of the small teeth of the sets is determine to substantially zero, under the consideration that the permeances between the small teeth of the stator magnetic pole and the rotor are varied according to the rotation of the rotor and that the permeances are varied regularly.
摘要翻译： 在本发明的三相混合型步进电动机中，形成在定子极的前端的小定子齿被分为两个或三个小齿的组，小的三次谐波矢量和 确定每组中的齿基本上为零，并且考虑到定子磁体的小齿之间的磁通量，组的小齿的磁导率的第三，第五和第六谐波矢量和确定为基本上为零 极和转子根据转子的旋转而变化，并且磁导率有规则地变化。
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80.发明申请Rotary electric machine having coaxial output hollow shaft with reduction gear and slip ring 失效旋转电机具有同轴输出空心轴，带减速齿轮和滑环公开(公告)号：US20010052735A1
公开(公告)日：2001-12-20
申请号：US09826899
申请日：2001-04-06
发明人： Masafumi Sakamoto
IPC分类号： H02K007/10 , H02K007/06
CPC分类号： H02K13/003 , F16H1/28 , F16H49/001 , F16M11/10 , F16M11/18 , F16M11/2014 , F16M13/00 , F16M13/027 , H02K5/141 , H02K7/116 , Y10T74/19
摘要： To drive an actuator which is optimum for and practical in use as a three-dimensionally positioning apparatus for a monitoring camera, a disco-lighting, an antenna, a multi-axis (multi-articular) robot, etc., there is provided an inner rotor type rotary electric machine having a coaxial output hollow shaft with a reduction gear and a slip ring, comprising: a hollow rotation shaft; a reduction gear for reducing an output of the inner rotor type rotary electric machine and extracting an output through a hollow shaft of the reduction gear coaxially with the hollow rotation shaft; and a slip ring provided in a hollow portion or an output portion of the reduction gear. Instead of the inner rotor type rotary electric machine, a similar outer rotor type rotary electric machine may be used.
摘要翻译： 为了驱动作为监视摄像机，迪斯科照明，天线，多轴（多关节）机器人等的三维定位装置的最佳和实际使用的致动器，提供了一种 具有同轴输出空心轴的内转子式旋转电机，具有减速齿轮和滑环，包括：中空旋转轴; 用于减小内转子式旋转电机的输出并通过与中空旋转轴同轴的减速齿轮的中空轴提取输出的减速齿轮; 以及设置在所述减速机的中空部或输出部的滑环。 可以使用类似的外转子型旋转电机代替内转子式旋转电机。
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