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    • 1. 发明专利
    • Motor control device
    • 电机控制装置
    • JP2011152046A
    • 2011-08-04
    • JP2011104572
    • 2011-05-09
    • Toshiba Corp株式会社東芝
    • KITAHATA TAKESHIYUKI KAZUAKIHIRATA MASAMIMORIMOTO KENJI
    • H02P6/18
    • PROBLEM TO BE SOLVED: To more smoothly restart an inverter, even if a motor is rotated at a high speed during the stop of the inverter, in sensorless vector control. SOLUTION: The permanent magnet motor 1 is rotated at such a high speed ω that the response of a controller does not follow before the starting of an inverter 2, it is determined whether a rotor is under high-speed rotation or under low-speed rotation, on the basis of currents Iu and Iw of the permanent magnet motor 1, a DC input current Idc of the inverter 2, or a DC input voltage Vdc of the inverter 2, even if an induction voltage Ed is higher than a DC voltage Vdc of the inverter 2. When the rotor is under high-speed rotation, the inverter 2 is restarted by controlling the starting timing of the inverter 2 or by increasing the gain of a current controller 8. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:即使在变频器停止期间电机高速旋转,在无传感器矢量控制中,为了更平稳地重启变频器。

      解决方案:永磁电动机1以在转换器2起动之前控制器的响应不跟随的高速ω旋转,确定转子是高速旋转还是低于转速 基于永磁电动机1的电流Iu和Iw,逆变器2的直流输入电流Idc或逆变器2的直流输入电压Vdc,即使感应电压Ed高于 逆变器2的直流电压Vdc。当转子处于高速旋转时,通过控制逆变器2的启动定时或通过增加电流控制器8的增益来重启逆变器2。 )2011,JPO&INPIT

    • 3. 发明专利
    • 電力変換装置
    • 电源转换器件
    • JP2014239636A
    • 2014-12-18
    • JP2014097175
    • 2014-05-08
    • 株式会社東芝Toshiba Corp
    • TANAKA SHOICHIROHIRATA MASAMIHISADA HIDEKI
    • H02M7/48H02M3/155
    • H05K7/20236H02M7/53H05K7/20927
    • 【課題】半導体装置の熱バラツキを抑え、冷却性能が向上した電力変換装置を提供する。【解決手段】実施形態によれば、電力変換装置は、同じスイッチング状態となるように各半導体装置にゲート信号が入力される1相分のインバータを所定相分並列に接続した第1インバータと、同じスイッチング状態となるように各半導体装置にゲート信号が入力される1相分のインバータを所定相分並列に接続し、かつ、1相分のインバータにおける前記スイッチング回路の並列数が前記第1インバータにおける並列数よりも少ない第2インバータと、冷却器を備えている。前記第1インバータの半導体装置は、前記冷却器の冷却面において第1流路上に位置する領域に設置され、前記第2インバータの半導体装置は、前記冷却面において第2流路上に位置する領域に設置されている。【選択図】図8
    • 要解决的问题:提供一种通过抑制半导体器件之间的热变化而具有改进的冷却性能的电力转换装置。解决方案:根据一个实施例,功率转换装置包括:第一反相器,包括预定相位数的并联单极 相位反相器,其中每个半导体器件输入栅极信号,以便建立相同的开关状态; 第二反相器,包括预定相位数的并联单相逆变器,其中每个反相器中的栅极信号被输入到每个半导体器件中,以便建立相同的开关状态,并且每个单相具有并联数量的开关电路 变频器小于第一变频器; 和一个冷却器。 第一逆变器的半导体器件安装在位于第一通道上方的冷却器的冷却表面的区域中,并且第二逆变器的半导体器件安装在位于第二通道上的冷却表面的区域中。
    • 4. 发明专利
    • Inverter device
    • 逆变器装置
    • JP2011097812A
    • 2011-05-12
    • JP2009252332
    • 2009-11-02
    • Toshiba Corp株式会社東芝
    • HASEGAWA RYUTAMOCHIKAWA HIROSHIHIRATA MASAMIHATANO YUKIHIKO
    • H02M7/48H02H5/04
    • H02M7/48B60L3/003H02M2001/327
    • PROBLEM TO BE SOLVED: To accurately estimate the temperature of other switching elements, based on temperature detected from one switching element regardless of in what operation mode an inverter is. SOLUTION: An inverter device 2 is equipped with: a direct-current power supply 4; switching elements S and reflux diodes D connected to the direct-current power supply 4; a means for converting direct-current voltage into predetermined alternating-current voltage, current, frequency by turning on and off the switching elements S; and a temperature detection portion C provided in proximity to one or more switching elements. The inverter device is provided with an estimating means 17 that estimates the temperature of the switching elements without the temperature detection portion and the reflux diodes, based on the following: a loss model of the switching elements S and the reflux diodes D; a thermal resistance model of a module that fixes the switching elements S and the reflux diodes D; an estimated temperature rise value calculated using the loss model and the thermal resistance model; and the temperature of the switching elements, which is detected with the temperature detection portion C. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:根据从一个开关元件检测到的温度,无论在什么样的操作模式下,逆变器都要准确估计其他开关元件的温度。

      解决方案:逆变器装置2配备有:直流电源4; 连接到直流电源4的开关元件S和回流二极管D; 通过接通和断开开关元件S将直流电压转换成预定的交流电压,电流,频率的装置; 以及设置在一个或多个开关元件附近的温度检测部分C. 逆变器装置设置有估计装置17,其基于以下方式估计开关元件的温度而没有温度检测部分和回流二极管:开关元件S和回流二极管D的损耗模型; 固定开关元件S和回流二极管D的模块的热阻模型; 使用损耗模型和热阻模型计算出的估计温升值; 以及用温度检测部分C检测的开关元件的温度。版权所有(C)2011,JPO&INPIT

    • 5. 发明专利
    • Motor control device
    • 电机控制装置
    • JP2007236015A
    • 2007-09-13
    • JP2006050505
    • 2006-02-27
    • Toshiba Corp株式会社東芝
    • KITAHATA TAKESHIYUKI KAZUAKIHIRATA MASAMIMORIMOTO KENJI
    • H02P6/16H02P6/20
    • PROBLEM TO BE SOLVED: To smoothly restart an inverter, even if a motor is rotated at a high speed during stoppage of the inverter, in sensor-less vector control. SOLUTION: The permanent magnet motor 1 is rotated prior to the start of the inverter 2 at such a high speed ω that will prevent the response of a controller to follow, it is determined whether a rotor is in high-speed rotation or in low-speed rotation, on the basis of currents Iu, Iw of the permanent magnet motor 1, a DC input current Idc of the inverter 2, or a DC input voltage Vdc of the inverter 2, even if an induction voltage Ed of the inverter 2 is higher than the DC voltage Vdc; and when the rotor is in the high-speed rotation, the inverter 2 is restarted, by controlling the start timing of the inverter 2 or by increasing the gain of the current controller 8. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:即使在变频器停机期间电动机高速旋转,在无传感器矢量控制中,为了顺利重启变频器。

      解决方案:永磁电动机1在逆变器2的起动之前以如此高的速度ω旋转,这将防止控制器的响应跟随,确定转子是高速旋转还是 在低速旋转中,基于永磁电动机1的电流Iu,Iw,逆变器2的直流输入电流Idc或逆变器2的直流输入电压Vdc,即使是 逆变器2高于直流电压Vdc; 并且当转子处于高速旋转时,通过控制逆变器2的启动定时或通过增加电流控制器8的增益来重新启动逆变器2.(C)2007,JPO&INPIT

    • 7. 发明专利
    • Driver of permanent magnet motor
    • 永磁电机的驱动
    • JPH11275882A
    • 1999-10-08
    • JP7728098
    • 1998-03-25
    • Toshiba Corp株式会社東芝
    • HIRATA MASAMI
    • H02P6/08H02P27/06H02P7/63
    • PROBLEM TO BE SOLVED: To provide a driver which is highly efficient and applicable even at high revolution, without using a microcomputer. SOLUTION: Voltages Vf which is proportional to the number of revolutions is generated by converting a positional signal H detected with a position detector 19u from frequency into voltage, and a DC-linked current 11 detected with a current detector 21 is inputted into a peak holding circuit 22 to generate a voltage Vp proportional to the load torque. A pulse generation circuit 24 generates single-shot pulses P where the width of the pulse deceases with respect to the increase in the added voltage Va of both voltages Vf and Vp, and a current application control circuit 25 gives commutation signals Sup-Swn which have phases delayed by the pulse width, with the phases of position signals Hu, Hv, and Hw as references, to the switching elements 2-7 of an inverter circuit 14.
    • 要解决的问题:提供即使在高转速下也是高效率且适用的驾驶员,而不使用微型计算机。 解决方案:通过将由位置检测器19u检测到的位置信号H从频率转换成电压而产生与转数成比例的电压Vf,并且将用电流检测器21检测的DC链接电流11输入到峰值保持 电路22产生与负载转矩成比例的电压Vp。 脉冲发生电路24产生单脉冲P,其中相对于两个电压Vf和Vp的相加电压Va的增加脉冲的宽度下降,并且电流施加控制电路25给出具有 反相器电路14的开关元件2-7以脉冲宽度延迟的相位,位置信号Hu,Hv,Hw的相位作为参考。
    • 8. 发明专利
    • Temperature detecting circuit
    • 温度检测电路
    • JP2009258016A
    • 2009-11-05
    • JP2008109354
    • 2008-04-18
    • Toshiba Corp株式会社東芝
    • HASEGAWA RYUTAMORIKAWA RYUICHITADA NOBUMITSUHIRATA MASAMI
    • G01K7/00B60L3/00
    • H02M1/32G01K3/005G01K7/01G01K2219/00H02M7/5387H02M2001/327
    • PROBLEM TO BE SOLVED: To provide a temperature detecting circuit minimizing a cost increase by adding a small number of components and meeting insulation and high responsiveness.
      SOLUTION: The temperature detecting circuit 15 outputs a first PWM signal corresponding to the temperature of a first temperature sensor TD
      X , as a signal insulated from the first temperature sensor TD
      X from a photo interrupter 32. A temperature detecting circuit part 34 outputs a second PWM signal corresponding to the temperature of a second temperature sensor TD
      U , as a signal insulated from the second temperature sensor TD
      U from a photo interrupter 56. A control arithmetic device 10 computes a higher one of temperatures detected by the first and second temperature sensors TD
      X , TD
      U based on the PWM signals output from the photo interrupters 32, 56.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供通过添加少量组件并满足绝缘和高响应性来最小化成本增加的温度检测电路。 解决方案:温度检测电路15输出与第一温度传感器TD X 的温度对应的第一PWM信号作为与第一温度传感器TD X < SB>温度检测电路部分34输出与第二温度传感器TD U 的温度对应的第二PWM信号作为与第二温度传感器TD U 。控制运算装置10计算由第一和第二温度传感器TD X ,TD U 检测到的较高温度。 基于从光电断路器32,56输出的PWM信号。版权所有:(C)2010,JPO&INPIT
    • 10. 发明专利
    • Inverter, semiconductor integrated circuit, and multiplier
    • 逆变器,半导体集成电路和多路复用器
    • JP2003348876A
    • 2003-12-05
    • JP2002148154
    • 2002-05-22
    • Toshiba Corp株式会社東芝
    • HIRATA MASAMI
    • H02P6/08
    • PROBLEM TO BE SOLVED: To provide an inverter capable of correcting an electrification phase more appropriately. SOLUTION: A pulse generating circuit 11 generates 32 clock pulses CK in a cycle T of position signals Hu-Hw. A phase estimating circuit 12 counts the number of clock pulses CK based on the rise edge of the position signal Hu to estimate the phase of a rotor 6R of a permanent magnet motor 6. A voltage signal forming circuit 13 reads and forms a prescribed voltage signal VSIN according to the phase of the rotor 6R from a memory. A multiplier circuit 18 outputs a product provided by multiplying an output voltage Vf of a rotation number detecting circuit 10 with an output voltage Vp of a peak hold circuit 17 to a phase correction circuit 9 through an A/D conversion circuit 19. COPYRIGHT: (C)2004,JPO
    • 要解决的问题:提供一种能够更适当地校正充电相的逆变器。 解决方案:脉冲发生电路11在位置信号Hu-Hw的周期T中产生32个时钟脉冲CK。 相位估计电路12基于位置信号Hu的上升沿来计数时钟脉冲数CK,以估计永磁电动机6的转子6R的相位。电压信号形成电路13读取并形成规定的电压信号 VSIN根据转子6R的相位从一个存储器。 乘法电路18通过A / D转换电路19将通过将转数检测电路10的输出电压Vf与峰值保持电路17的输出电压Vp相乘而得到的乘积输出到相位校正电路9。 版权所有(C)2004,JPO