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14 条记录 (耗时 0.03 秒)

    Inverter device
    2.
    发明申请
    Inverter device 有权
    变频器

    公开(公告)号：US20060119310A1

    公开(公告)日：2006-06-08

    申请号：US11293914

    申请日：2005-12-05

    申请人： Akira Ide ,  Kazuki Najima ,  Motonobu Funato ,  Shinya Sato ,  Takashi Kawashima

    发明人： Akira Ide ,  Kazuki Najima ,  Motonobu Funato ,  Shinya Sato ,  Takashi Kawashima

    IPC分类号： H02P27/04

    CPC分类号： H02M7/5387 ,  H02P6/18 ,  H02P6/20

    摘要： The control device records, in advance, a current data table which specifies relationships between currents in respective phases in a three-phase motor and rotation angles of a rotor of the three-phase motor, obtains, from the current data table, a rotation angle of the rotor of the three-phase motor corresponding to a current in each phase in the three-phase motor detected by a current sensor before driving of the three-phase motor, and obtains an initial position of the rotor.

    摘要翻译： 控制装置预先记录指定三相电动机的各相的电流与三相电动机的转子的旋转角度之间的关系的当前数据表，从当前数据表中取得旋转角度 在三相电动机的驱动之前由三相电动机的转子对应于由三相电动机中的电流传感器检测到的每相中的电流，并获得转子的初始位置。

    Inverter device
    3.
    发明授权
    Inverter device 有权
    变频器

    公开(公告)号：US07202618B2

    公开(公告)日：2007-04-10

    申请号：US11293914

    申请日：2005-12-05

    申请人： Akira Ide ,  Kazuki Najima ,  Motonobu Funato ,  Shinya Sato ,  Takashi Kawashima

    发明人： Akira Ide ,  Kazuki Najima ,  Motonobu Funato ,  Shinya Sato ,  Takashi Kawashima

    IPC分类号： H02P1/18

    CPC分类号： H02M7/5387 ,  H02P6/18 ,  H02P6/20

    摘要： The control device records, in advance, a current data table which specifies relationships between currents in respective phases in a three-phase motor and rotation angles of a rotor of the three-phase motor, obtains, from the current data table, a rotation angle of the rotor of the three-phase motor corresponding to a current in each phase in the three-phase motor detected by a current sensor before driving of the three-phase motor, and obtains an initial position of the rotor.

    摘要翻译： 控制装置预先记录指定三相电动机的各相的电流与三相电动机的转子的旋转角度之间的关系的当前数据表，从当前数据表中取得旋转角度 在三相电动机的驱动之前由三相电动机的转子对应于由三相电动机中的电流传感器检测到的每相中的电流，并获得转子的初始位置。

    Inverter device
    4.
    发明授权
    Inverter device 失效
    变频器

    公开(公告)号：US08618753B2

    公开(公告)日：2013-12-31

    申请号：US12795857

    申请日：2010-06-08

    申请人： Kazuki Najima ,  Fumihiro Kagawa ,  Hiroshi Fukasaku

    发明人： Kazuki Najima ,  Fumihiro Kagawa ,  Hiroshi Fukasaku

    IPC分类号： H02P1/00

    CPC分类号： H02M7/53871

    摘要： An inverter device includes a filter circuit, an inverter circuit, an electric current detecting circuit, a voltage detecting circuit, a control circuit for outputting a drive signal so as to switch switching devices, and an internal power supply. The control circuit includes a shutdown circuit for stopping outputting the drive signal to the switching devices when an electric current flowing through a motor is an overcurrent or a voltage across the inverter circuit is an overvoltage or the voltage outputted from the internal power supply is not stabilized. When electric power by residual charge in the capacitor is used after the inverter device is disconnected from a high-voltage battery, the control circuit generates the drive signal based on a reference waveform and three commands for keeping switching devices corresponding to one phase in either ON or OFF state and for switching ON and OFF the other remaining switching devices.

    摘要翻译： 逆变器装置包括滤波电路，逆变器电路，电流检测电路，电压检测电路，用于输出驱动信号以切换开关装置的控制电路和内部电源。 控制电路包括：停止电路，用于当流过电动机的电流为过电流或者逆变器电路两端的电压为过电压或从内部电源输出的电压不稳定时，停止向开关装置输出驱动信号 。 在逆变器装置从高电压电池断开之后，当使用电容器中的剩余电荷进行电力供给时，控制电路基于参考波形生成驱动信号，并将三个命令用于保持对应于一相的开关装置的ON 或OFF状态，并且用于接通和关闭其他剩余的开关装置。

    Inverter unit
    5.
    发明授权
    Inverter unit 有权
    变频器单元

    公开(公告)号：US08604732B2

    公开(公告)日：2013-12-10

    申请号：US13354923

    申请日：2012-01-20

    申请人： Takashi Kawashima ,  Kazuki Najima ,  Yoshiki Nagata

    发明人： Takashi Kawashima ,  Kazuki Najima ,  Yoshiki Nagata

    IPC分类号： H02P6/14 ,  H02P21/00 ,  H02P6/06 ,  G05B11/28 ,  H02P27/04

    CPC分类号： H02P27/08 ,  H02P6/18

    摘要： The two-phase modulation control inverter unit includes a plurality of switching devices, a shunt resistor and a controller. The switching devices drive a three-phase motor. The shunt resistor is connected between a direct-current power supply and the switching devices. The controller reads a voltage applied to the shunt resistor in a read cycle, computes command voltages based on the read voltage, and uses the command voltages and carrier signals to compute three control signals. The read cycle corresponds to two or more signal cycles of each carrier signal. Each control signal has a pulse for each signal cycle of the corresponding carrier signal. The controller integrates a plurality of pulses of each control signal in the read cycle into one or more pulses. The controller reads a voltage applied to the shunt resistor at the time of outputting of the integrated one or more pulses in the next read cycle.

    摘要翻译： 两相调制控制逆变器单元包括多个开关装置，分流电阻器和控制器。 开关器件驱动三相电机。 分流电阻连接在直流电源和开关器件之间。 控制器在读周期中读取施加到分流电阻器的电压，根据读取电压计算指令电压，并使用指令电压和载波信号计算三个控制信号。 读周期对应于每个载波信号的两个或多个信号周期。 每个控制信号具有对应载波信号的每个信号周期的脉冲。 控制器将读周期中的每个控制信号的多个脉冲集成到一个或多个脉冲中。 控制器在下一个读取周期中输出积分的一个或多个脉冲时读取施加到分流电阻器的电压。

    Electric motor controller in electric compressor
    6.
    发明授权
    Electric motor controller in electric compressor 失效
    电动压缩机电机控制器

    公开(公告)号：US07498545B2

    公开(公告)日：2009-03-03

    申请号：US11414071

    申请日：2006-04-27

    申请人： Hiroshi Fukasaku ,  Kazuki Najima ,  Takashi Kawashima

    发明人： Hiroshi Fukasaku ,  Kazuki Najima ,  Takashi Kawashima

    IPC分类号： H05B1/02

    CPC分类号： F04B35/04 ,  F04C18/0215 ,  F04C23/008 ,  F04C28/06 ,  F04C28/28 ,  F04C29/0085 ,  F04C2240/403 ,  F04C2270/19 ,  F04C2270/70 ,  H02P29/032 ,  H02P29/64

    摘要： A coil of an electric motor is cooled by refrigerant. A controller for the electric motor controls a current supplied to the coil within a range less than or equal to a predetermined maximum value. A temperature detection section detects either a temperature of the coil or a temperature about the coil. When a detection temperature that is detected by the temperature detection section prior to activation of the electric motor reaches a predetermined reference temperature, a limiting section executes a limiting control to limit an upper limit value of the current supplied to the coil to a limiting value that is less than the maximum value. Accordingly, the coil of the electric motor is protected without stopping the operation of the electric compressor immediately after activation.

    摘要翻译： 电动机的线圈由制冷剂冷却。 用于电动机的控制器在小于或等于预定最大值的范围内控制提供给线圈的电流。 温度检测部检测线圈的温度或绕线圈的温度。 当在电动机起动之前由温度检测部检测到的检测温度达到预定的基准温度时，限制部执行限制控制，将供给线圈的电流的上限值限制为限制值， 小于最大值。 因此，电动马达的线圈被保护而不会在启动后立即停止电动压缩机的操作。

    DIRECT-CURRENT TO THREE-PHASE ALTERNATING-CURRENT INVERTER SYSTEM
    8.
    发明申请
    DIRECT-CURRENT TO THREE-PHASE ALTERNATING-CURRENT INVERTER SYSTEM 有权
    直流电流到三相交流电流逆变器系统

    公开(公告)号：US20110241587A1

    公开(公告)日：2011-10-06

    申请号：US13075905

    申请日：2011-03-30

    申请人： Takuya NARUSE ,  Kazuki Najima

    发明人： Takuya NARUSE ,  Kazuki Najima

    IPC分类号： H02P6/14

    CPC分类号： H02M7/53873 ,  H02M1/14 ,  H02M7/53875 ,  H02M2001/0054 ,  H02P21/06 ,  Y02B70/1491

    摘要： A direct-current to three-phase alternating-current inverter system includes a three-phase motor, a plurality of switching elements, an inverter circuit for the three-phase motor, a capacitor, a direct-current power source and a control circuit. The switching elements arranged in the inverter circuit serve as upper and lower arms for the respective three phases of the three-phase motor, respectively. The capacitor is connected in parallel to the respective pairs of the upper and lower arms. The direct-current power source is arranged between the neutral-point of the three-phase motor and the respective lower arms or the respective upper arms. The control circuit controls the switching elements such that at least the switching frequency of one pair of the switching elements for one phase through which the current having the greatest value flows is lower than the switching frequencies of the other pairs of the switching elements for the other phases.

    摘要翻译： 对三相交流逆变器系统的直流电流包括三相电动机，多个开关元件，用于三相电动机的逆变器电路，电容器，直流电源和控制电路。 布置在逆变器电路中的开关元件分别用作三相电动机的三相的上臂和下臂。 电容器与上下臂的各对并联连接。 直流电源设置在三相电动机的中性点和相应的下臂或相应的上臂之间。 控制电路控制开关元件，使得至少具有流过最大值的电流的一相开关元件的开关频率低于另一对开关元件的开关频率 阶段

    Battery charging device
    9.
    发明授权
    Battery charging device 失效
    电池充电装置

    公开(公告)号：US06310465B2

    公开(公告)日：2001-10-30

    申请号：US09726925

    申请日：2000-11-30

    申请人： Kazuki Najima

    发明人： Kazuki Najima

    IPC分类号： H02J704

    CPC分类号： H02J7/025 ,  B60L3/04 ,  B60L11/182 ,  B60L2230/14 ,  B60L2230/16 ,  B60L2240/36 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2250/10 ,  H02J50/10 ,  H02J50/80 ,  Y02T10/7005 ,  Y02T10/7088 ,  Y02T90/122 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/16 ,  Y02T90/163

    摘要： A battery charging device includes a power supply coupler and a power receiver coupler. The power supply coupler includes a primary coil, a communication unit to communicate the power receiver coupler, a thermistor for detecting the temperature of the power supply coupler, and a communication interruption circuit for interrupting a communication signal when the predetermined value is detected by the thermistor. When the temperature of the power supply coupler exceeds the predetermined value, a signal is produced by the communication interruption circuit to prevent an excessive temperature rise in the power supply coupler. The signal may, for example, stop the supply of electric power to the power supply couple.

    摘要翻译： 电池充电装置包括电源耦合器和电源接收器耦合器。 电源耦合器包括初级线圈，用于通信电力接收器耦合器的通信单元，用于检测电源耦合器的温度的热敏电阻，以及当热敏电阻检测到预定值时中断通信信号的通信中断电路 。 当电源耦合器的温度超过预定值时，由通信中断电路产生一个信号，以防止电源耦合器中的温度过高。 信号可以例如停止向电源对供电。

    Direct-current to three-phase alternating-current inverter system
    10.
    发明授权
    Direct-current to three-phase alternating-current inverter system 失效
    直流三相交流逆变系统

    公开(公告)号：US08441225B2

    公开(公告)日：2013-05-14

    申请号：US13075982

    申请日：2011-03-30

    申请人： Takuya Naruse ,  Kazuki Najima

    发明人： Takuya Naruse ,  Kazuki Najima

    IPC分类号： H02P27/04

    CPC分类号： H02M7/53875 ,  B60L11/1803 ,  B60L15/007 ,  B60L2210/30 ,  B60L2210/42 ,  B60L2240/421 ,  B60L2240/429 ,  B60L2240/526 ,  B60L2240/527 ,  B60L2240/529 ,  B60L2240/547 ,  H02J7/0065 ,  H02P27/06 ,  H02P27/08 ,  H02P2209/01 ,  Y02T10/644 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7241

    摘要： A DC to three-phase AC inverter system includes a three-phase motor, an inverter circuit, switching elements, a capacitor, a DC power source and a control circuit. The DC power source is connected to the three-phase motor at a neutral point thereof. The control circuit calculates voltage commands, first through third divided boost commands by dividing a boost command, and first through third drive signals based on the voltage commands and the first through third divided boost commands. The second and third divided boost commands are used when the PWM control is performed by turning on and off the switching elements for the second and third phases while the switching elements for the first phase continues to be on or off state is set larger than those used when the PWM control is performed by turning on and off the switching elements for the first through third phases.

    摘要翻译： 直流三相交流逆变器系统包括三相电机，逆变电路，开关元件，电容器，直流电源和控制电路。 直流电源在其中性点连接到三相电动机。 控制电路基于电压指令和第一至第三分压升压指令，计算电压指令，分压升压指令的第一至第三分压升压指令和第一至第三驱动信号。 当通过接通和关断用于第二和第三相的开关元件执行PWM控制时，第二和第三分频升压命令被使用，而第一相的开关元件继续导通或断开状态被设置为大于所使用的 当通过接通和关断第一至第三相的开关元件来执行PWM控制时。