公开(公告)号：US5650697A

公开(公告)日：1997-07-22

申请号：US477786

申请日：1995-06-07

申请人： Akihiko Imagi ,  Yoshio Yoshikuwa ,  Takuo Akiyama ,  Norikazu Ishikawa ,  Tatsunao Hayashida ,  Yu Hasegawa ,  Kenshi Kawagishi ,  Kazuyuki Mitsushima ,  Haruhiko Ishida ,  Hidekazu Totsuka

发明人： Akihiko Imagi ,  Yoshio Yoshikuwa ,  Takuo Akiyama ,  Norikazu Ishikawa ,  Tatsunao Hayashida ,  Yu Hasegawa ,  Kenshi Kawagishi ,  Kazuyuki Mitsushima ,  Haruhiko Ishida ,  Hidekazu Totsuka

IPC分类号： H02P23/00 ,  F02B75/02 ,  F24F11/00 ,  H02P25/04 ,  H02P25/14 ,  H02P27/02 ,  H02P7/36

CPC分类号： H02P25/14 ,  F24F11/0001 ,  F02B2075/027 ,  F24F11/0079 ,  Y02B30/746

摘要： The improved motor drive unit includes a zero-crossing voltage detector circuit composed of components (7) to (12) for detecting whether the voltage from an AC power supply (1) is zero-crossing and a switching circuit for performing on-off control by means of a thyristor 27 so as to switch between energization and de-energization of the AC power supply to a motor (2) and controls the speed of the motor by changing the ratio between the times of energization and de-energization of the AC power supply to the motor. The start of energization coincides with the zero-crossing of the AC power supply voltage whereas the timing of end of energization coincides with the zero-crossing of an energization current by means of the thyristor and wherein the energization time is fixed at a value either equal to or twice the power supply period whereas the de-energization time is varied in units that are integral multiples of one half the power supply period. If desired, a plurality of patterns for percent energization may be combined to attain a desired percent energization. Alternatively, a plurality of patterns that are equal in the ratio between the energization and de-energization times are used in combination. Only the main winding in the motor is preferably controlled for optimal energization.

摘要翻译： 改进的电动机驱动单元包括由用于检测来自交流电源（1）的电压是否过零的组件（7）至（12）组成的过零电压检测器电路和用于执行开关控制的开关电路 通过晶闸管27切换到电动机（2）的交流电源的通电和断电之间，并且通过改变AC的通电和断电时间之间的比例来控制电动机的速度 给电机供电。 通电的开始与交流电源电压的过零点一致，而通电结束的定时与通过晶闸管的通电电流的过零点一致，并且其中通电时间固定为相等的值 达到或两倍的供电周期，而去电时间以供电周期的一半的整数倍的单位变化。 如果需要，可以组合用于百分比通电的多个图案以获得所需的百分比通电。 或者，组合使用与通电时间和去电时间之比相等的多个图案。 优选地仅控制电动机中的主绕组以最佳的通电。

公开(公告)号：US5642857A

公开(公告)日：1997-07-01

申请号：US607928

申请日：1996-02-28

申请人： Hidekazu Totsuka ,  Kenshi Kawagishi ,  Yasunori Shida ,  Kazuyuki Mitsushima ,  Yukihiko Iwata

发明人： Hidekazu Totsuka ,  Kenshi Kawagishi ,  Yasunori Shida ,  Kazuyuki Mitsushima ,  Yukihiko Iwata

IPC分类号： F24F11/02 ,  F24F11/00 ,  F25B13/00

CPC分类号： F24F11/0009 ,  F24F2011/0067

摘要： A control apparatus for a multi-air-conditioner having an external unit and a plurality of internal units includes a DC electric power supply. An external transmitting/receiving circuit is provided with the external unit and is connected with the DC electric power supply, and a plurality of internal transmitting/receiving circuits are provided with the plurality of internal units and are connected serially with the external transmitting/receiving circuit via a signal line. A DC voltage is supplied for transmitting data from the external unit to the internal unit, which reduces a leakage distance of the circuit. A timing for transmitting data can be set freely, a transmitting speed of data can be improved using a high-speed photo-coupler, and thus an operation speed of the internal unit can be improved in the multi-air-conditioner having the plurality of internal units.

摘要翻译： 具有外部单元和多个内部单元的多空调控制装置包括直流电源。 外部发送/接收电路设置有外部单元并与直流电源连接，并且多个内部发送/接收电路设置有多个内部单元并且与外部发送/接收电路串联连接 通过信号线。 提供直流电压，用于将数据从外部单元发送到内部单元，从而减小电路的泄漏距离。 可以自由地设定发送数据的定时，可以使用高速光耦合器来提高数据的发送速度，从而可以在具有多个光耦合器的多空调机中提高内部单元的操作速度 内部单位。

公开(公告)号：US4788485A

公开(公告)日：1988-11-29

申请号：US29228

申请日：1987-03-23

申请人： Kenshi Kawagishi ,  Masaharu Udaka

发明人： Kenshi Kawagishi ,  Masaharu Udaka

IPC分类号： H02P27/06 ,  H02M1/42 ,  H02M5/458 ,  H02P25/02 ,  H02P27/08 ,  H02P5/28

CPC分类号： H02P27/08 ,  H02M1/425 ,  H02M5/458 ,  H02P25/024 ,  H02M1/4216 ,  H02M1/4225 ,  Y02B70/126

摘要： A control apparatus for controlling the main circuit for driving an AC electric motor consisting of a diode converter and a pulse width modulation (PWM) power converting device, in which it is arranged that the DC current as the output of the diode converter is detected by a current detector, the AC component of this DC current is filtered through a high-pass filter, and a pulse-width-modulation control is exercised by a control circuit in response to the output of the high-pass filter so that the DC current as the output of the diode converter may be smoothed out in the main circuit by the PWM power converting device. By such arrangement, this control apparatus of an electric motor is made smaller in size and simplified in structure and enabled to control the power factor of the power source of the diode converter to close to 1.0.

摘要翻译： 一种用于控制用于驱动由二极管转换器和脉宽调制（PWM）功率转换装置组成的交流电动机的主电路的控制装置，其中布置为通过以下方式检测作为二极管转换器的输出的直流电流： 电流检测器，通过高通滤波器对该直流电流的交流分量进行滤波，并且由控制电路根据高通滤波器的输出进行脉冲宽度调制控制，使得直流电流 因为二极管转换器的输出可以通过PWM功率转换装置在主电路中平滑化。 通过这种布置，电动机的该控制装置的尺寸更小并且结构简化，并且能够将二极管转换器的电源的功率因数控制在接近1.0。