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41 条记录 (耗时 0.024 秒)

    INVERTER-DRIVEN DYNAMO ELECTRIC MACHINE AND SYSTEM, BEARING, AND END BRACKET FOR SAME
    21.
    发明申请
    INVERTER-DRIVEN DYNAMO ELECTRIC MACHINE AND SYSTEM, BEARING, AND END BRACKET FOR SAME 审中-公开
    逆变器动力电机及系统，轴承和端支架

    公开(公告)号：US20130038182A1

    公开(公告)日：2013-02-14

    申请号：US13580749

    申请日：2010-03-17

    申请人： Koji Obata ,  Takeo Konno ,  Keisuke Abe ,  Norinaga Suzuki

    发明人： Koji Obata ,  Takeo Konno ,  Keisuke Abe ,  Norinaga Suzuki

    IPC分类号： H02K11/00 ,  F16C21/00

    CPC分类号： H02K7/083 ,  F16C19/52 ,  F16C41/002 ,  F16C2202/32 ,  H02K11/40

    摘要： The purpose of the invention is to provide an inverter-driven dynamo electric machine and system for the same having high reliability and high efficiency such that even in the case of inverter pulse voltages having high dv/dt, generation of shaft voltages and generation of shaft currents causing electric corrosion of a bearing with the generation of the shaft voltages are suppressed, thereby keeping the bearing free of electric corrosion.The purpose of the invention is achieved by the following method. That is, the purpose is achieved by an inverter-driven dynamo electric machine and system for the same including at least one machine support bearing which supports a shaft of a rotor, and one electric discharge bearing which discharges the voltage generated in the shaft of the rotor, wherein a bearing having a lower dielectric breakdown voltage between an inner ring and an outer ring than that of the machine support bearing is used as the electric discharge bearing.Accordingly, this can provide an inverter-driven dynamo electric machine and system for the same having high reliability and high efficiency such that the bearing is not electrically corroded with respect to the inverter pulse voltage.

    摘要翻译： 本发明的目的是提供一种具有高可靠性和高效率的逆变器驱动的发电机和系统，使得即使在具有高dv / dt的逆变器脉冲电压的情况下，产生轴电压和产生轴 导致产生轴电压导致轴承电腐蚀的电流被抑制，从而保持轴承没有电腐蚀。 本发明的目的通过以下方法实现。 也就是说，其目的是通过用于其的逆变器驱动的发电机和系统来实现，其包括支撑转子的轴的至少一个机械支撑轴承，以及一个放电轴承，其排出在轴的轴中产生的电压 转子，其中使用在内圈和外圈之间具有比机器支撑轴承的介电击穿电压低的轴承作为放电轴承。 因此，这可以提供一种具有高可靠性和高效率的逆变器驱动的发电机和系统，使得轴承相对于逆变器脉冲电压没有被电腐蚀。

    INSULATION DIAGNOSIS METHOD, INSULATION DIAGNOSIS SYSTEM, AND ROTATING ELECTRIC MACHINE
    22.
    发明申请
    INSULATION DIAGNOSIS METHOD, INSULATION DIAGNOSIS SYSTEM, AND ROTATING ELECTRIC MACHINE 审中-公开
    绝缘诊断方法，绝缘诊断系统和旋转电机

    公开(公告)号：US20110241697A1

    公开(公告)日：2011-10-06

    申请号：US13075379

    申请日：2011-03-30

    申请人： Chie Omatsu ,  Koji Obata ,  Shuya Hagiwara

    发明人： Chie Omatsu ,  Koji Obata ,  Shuya Hagiwara

    IPC分类号： G01R31/02

    CPC分类号： G01R31/1227 ,  G01R31/34

    摘要： An insulation diagnosis method according to the present invention includes: measurement step through which a signal generated at a diagnosis target device is measured; detection step through which a frequency or a frequency band manifesting a maximum amplitude signal strength is detected from the signal having been measured through the measurement step; and identification step through which an insulation defect type pertaining to an insulation defect having occurred in the diagnosis target device is identified based upon the frequency or the frequency band manifesting the maximum amplitude signal strength having been detected through the detection step.

    摘要翻译： 根据本发明的绝缘诊断方法包括：测量在诊断对象装置上产生的信号的测量步骤; 从已经通过测量步骤测量的信号中检测出表现出最大振幅信号强度的频率或频带的检测步骤; 以及基于通过检测步骤检测到的表示最大振幅信号强度的频率或频带来识别与在诊断对象装置中发生的绝缘缺陷有关的绝缘缺陷类型的识别步骤。

    Stator for rotating machine and rotating machine using the same
    23.
    发明授权
    Stator for rotating machine and rotating machine using the same 有权
    旋转机和旋转机使用相同的定子

    公开(公告)号：US07936100B2

    公开(公告)日：2011-05-03

    申请号：US12275839

    申请日：2008-11-21

    申请人： Takashi Naganawa ,  Takashi Ishigami ,  Koji Obata ,  Toshiaki Ueda ,  Katsuhiro Hoshino

    发明人： Takashi Naganawa ,  Takashi Ishigami ,  Koji Obata ,  Toshiaki Ueda ,  Katsuhiro Hoshino

    IPC分类号： H02K11/00

    CPC分类号： H02K3/522

    摘要： The stator includes a plurality of concentrated winding coils disposed coupled into an annular form through yokes, and a plurality of conductors that couple the coil ends of the concentrated winding coils to each other in a multi-phase connection fashion. Conductors for a U-phase, a V-phase, a W-phase, and neutral points P are each formed of a plurality of holes for inserting therethrough coil ends and are substantially circular with different diameters, and are disposed on the same plane. A connection plate provided with a wall is inserted between the conductors and the concentrated winding coils. A rotating machine includes the above-mentioned stator and a rotor that is rotatable within the stator.

    摘要翻译： 定子包括多个通过轭架耦合成环形形式的集中绕组线圈，以及以多相连接方式将集中绕组线圈的线圈端彼此耦合的多个导体。 U相，V相，W相和中性点P的导体各自由用于插入线圈端部的多个孔形成，并且基本上具有不同直径的圆形，并且设置在同一平面上。 设置有壁的连接板插入在导体和集中绕组线圈之间。 旋转机器包括上述定子和可在定子内旋转的转子。

    Receiving device, clock synchronizing method, and computer program
    25.
    发明申请
    Receiving device, clock synchronizing method, and computer program 有权
    接收设备，时钟同步方法和计算机程序

    公开(公告)号：US20090245124A1

    公开(公告)日：2009-10-01

    申请号：US12381749

    申请日：2009-03-16

    申请人： Takahiro Ichikawa ,  Koji Obata ,  Tomoyuki Sato ,  Yoshikatsu Niwa ,  Junichi Otani ,  Tomoaki Takemura ,  Shinya Masunaga

    发明人： Takahiro Ichikawa ,  Koji Obata ,  Tomoyuki Sato ,  Yoshikatsu Niwa ,  Junichi Otani ,  Tomoaki Takemura ,  Shinya Masunaga

    IPC分类号： H04L12/26

    CPC分类号： H04L43/087 ,  H04L43/106

    摘要： There is provided a receiving device including: a receiving unit that receives a packet stream; an oscillator; a measuring unit that performs a measuring operation; an acquiring unit that reads the newest time stamp read from the packet stream received by the receiving unit and the newest measurement value measured by the measuring unit with a predetermined period, from a point of time when the packet stream starts to be received; a calculating unit that calculates an accumulation value of the time stamps and the measurement values acquired by the acquiring unit; a comparing unit that compares a difference between the accumulation value of the time stamps and the accumulation value of the measurement values calculated by the calculating unit, and a value corresponding to a network jitter; and a frequency control unit that controls the oscillation frequency of the oscillator based on the comparison result by the comparing unit.

    摘要翻译： 提供了一种接收装置，包括：接收单元，其接收分组流; 振荡器 执行测量操作的测量单元; 获取单元，从分组流开始接收的时间点开始，读取从接收单元接收的分组流中读取的最新时间戳和由测量单元测量的最新测量值; 计算单元，计算所述时间戳的积累值和由所述获取单元获取的测量值; 比较单元，其比较所述时间戳的累积值与由所述计算单元计算出的测量值的累积值之间的差以及与所述网络抖动相对应的值; 以及频率控制单元，其基于比较单元的比较结果来控制振荡器的振荡频率。

    Method of testing partial discharge of rotating electrical machine driven by inverter
    27.
    发明授权
    Method of testing partial discharge of rotating electrical machine driven by inverter 有权
    由变频器驱动的旋转电机的局部放电检测方法

    公开(公告)号：US09018970B2

    公开(公告)日：2015-04-28

    申请号：US13353628

    申请日：2012-01-19

    申请人： Koji Obata ,  Yutaka Higashimura ,  Keiji Suzuki

    发明人： Koji Obata ,  Yutaka Higashimura ,  Keiji Suzuki

    IPC分类号： G01R31/34 ,  G01R31/12 ,  G01R15/16

    CPC分类号： G01R31/346 ,  G01R15/16 ,  G01R31/1272

    摘要： In a rotating electrical machine, a conductive foil or conductive rubber is applied to the surface of insulation layer of a conductor series connection area or to the surface of insulation layer of a turn conductor of coils of rotating electrical machine winding, waveforms of grounding voltages of the individual turn conductor portions are measured through the medium of an electrostatic capacitance of the insulation layer of coil conductor series connection area or through the medium of the insulation layer of coil turn conductor, and a partial discharge is measured while measuring a voltage developing in the coil or across a winding turn in the coil from a difference between the waveforms of grounding voltages.

    摘要翻译： 在旋转电机中，将导电箔或导电橡胶施加到导体串联连接区域的绝缘层的表面或旋转电机绕组的线圈的转向导体的绝缘层的表面，接地电压的波形 通过线圈导体串联连接区域的绝缘层的静电电容的介质或线圈导体的绝缘层的介质测量各个导体部分，并且在测量在 线圈或线圈中绕线圈的接地电压波形之间的差异。

    Resonator, delta-sigma modulator, and wireless communication device
    29.
    发明授权
    Resonator, delta-sigma modulator, and wireless communication device 有权
    谐振器，Δ-Σ调制器和无线通信设备

    公开(公告)号：US08823567B2

    公开(公告)日：2014-09-02

    申请号：US13534716

    申请日：2012-06-27

    申请人： Yosuke Mitani ,  Kazuo Matsukawa ,  Masao Takayama ,  Koji Obata ,  Shiro Dosho

    发明人： Yosuke Mitani ,  Kazuo Matsukawa ,  Masao Takayama ,  Koji Obata ,  Shiro Dosho

    IPC分类号： H03M3/00 ,  H03H11/04

    CPC分类号： H03H11/04 ,  H03H2011/0488 ,  H03M3/404

    摘要： Two T filters, one of which includes two resistive elements and one capacitive element and the other of which includes two capacitive elements and one resistive element, are inserted in a negative-feedback section of an operational amplifier, and a resistive element and a capacitive element are connected between each of intermediate nodes and a signal input terminal. A resistive element and a capacitive element which are connected to each other in parallel are connected between the signal input terminal and an inverting input terminal of the operational amplifier. With this configuration, overall admittances where elements connected to the corresponding intermediate nodes are in parallel connection are equal to each other.

    摘要翻译： 两个T滤波器，其中一个包括两个电阻元件和一个电容元件，另一个包括两个电容元件和一个电阻元件，插入到运算放大器的负反馈部分中，电阻元件和电容元件 连接在每个中间节点和信号输入端子之间。 并联连接的电阻元件和电容元件连接在信号输入端子和运算放大器的反相输入端子之间。 利用这种配置，连接到对应的中间节点的元件并联连接的整体导纳彼此相等。

    Rotating Machine and Insulator and Slot Liner for Rotating Machine
    30.
    发明申请
    Rotating Machine and Insulator and Slot Liner for Rotating Machine 审中-公开
    旋转机和旋转机的绝缘子和槽衬

    公开(公告)号：US20140117805A1

    公开(公告)日：2014-05-01

    申请号：US14123588

    申请日：2012-06-15

    申请人： Shuya Hagiwara ,  Koji Obata ,  Yoshimi Kurahara

    发明人： Shuya Hagiwara ,  Koji Obata ,  Yoshimi Kurahara

    IPC分类号： H02K3/34

    CPC分类号： H02K3/345 ,  H02K3/34

    摘要： A rotating machine includes a stator including a stator core having a plurality of slots arrayed in the circumferential direction, a plurality of conductors for stator winding wire inserted respectively into the slots, and slot liners comprising a sheet-shaped insulator surrounding the conductors for stator winding wire; and a rotor rotatably arranged concentrically with the stator. In the rotating machine the slots of which are filled with an electrically insulative resin, concavo-convex is formed on both the top and bottom surfaces of the slot liners.

    摘要翻译： 一种旋转机械包括定子，该定子包括具有沿圆周方向排列的多个狭槽的定子芯，分别插入到槽中的多个用于定子绕组线的导体，以及包括围绕用于定子绕组的导体的片状绝缘体 线; 以及与该定子同心地配置的转子。 在旋转机器中，其狭槽填充有电绝缘树脂，凹槽形成在槽衬套的顶表面和底表面上。