公开(公告)号：JP2013090372A

公开(公告)日：2013-05-13

申请号：JP2011226447

申请日：2011-10-14

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： TAKEOKA YOSHINORI ,  TANAKA HIDENAO

IPC: H02P6/18

Abstract: PROBLEM TO BE SOLVED: To provide a motor drive with a larger stable control range capable of being applied to various types of motors.SOLUTION: The motor drive includes: a current detection section 7 that detects a current flowing through a brushless DC motor 4; and an energization angle changing section 8 that, when a change of current value is detected by the current detection section 7 at a period different from the drive speed of the brushless DC motor 4, changes the energization angle in a range of 120 degrees or more and less than 180 degrees. By outputting a signal having a second waveform which has a predetermined relation with the phase of the current detected by the current detection section 7 and which is a waveform of the energization angle determined by the energization angle changing section 8 at a frequency set by a frequency setting section 9, the energization angle is changed to an energization angle with which stable controlling is achieved based on the state of the current. Accordingly, the controllable range can be expanded based on the correction of phase difference between the current and the applied voltage. Thus, the motor drive can be applied to various types of motors and various motor outputs.

Abstract translation: 要解决的问题：提供具有能够应用于各种类型的电动机的更大的稳定控制范围的电动机驱动。 电动机驱动器包括：检测流过无刷直流电动机4的电流的电流检测部7; 以及通电角度变化部8，其在电流检测部7以与无刷直流电动机4的驱动速度不同的时间检测到电流值的变化时，将通电角度在120度以上的范围内变化 小于180度。 通过输出具有与由电流检测部分7检测到的电流的相位具有预定关系的第二波形的信号，其是由通电角度变化部分8确定的以由频率设定的频率的激励角度的波形 设定部9根据电流的状态将通电角度变更为实现稳定控制的通电角度。 因此，可以基于电流和施加电压之间的相位差的校正来扩展可控范围。 因此，电机驱动可以应用于各种类型的电动机和各种电动机输出。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2012065412A

公开(公告)日：2012-03-29

申请号：JP2010206296

申请日：2010-09-15

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： TAKEOKA YOSHINORI ,  MAEDA SHIRO

IPC: H02P6/18

Abstract: PROBLEM TO BE SOLVED: To provide a brushless DC motor driving device that can be easily expanded to various models, requiring no position sensor and no adjustment by motor constants and speeds of a brushless DC motor.SOLUTION: Two phases of a three phase brushless DC motor 4 is connected to the output of an inverter 3 formed by a two phase bridge, and the connection line of serially connected smoothing capacitors 2e and 2f in a smoothing rectifier circuit 2 forming a voltage doubler rectifier is connected to the remaining one phase. The brushless DC motor 4 is driven by a rectangular wave by position detection of a position detecting part 5 based on an induction voltage, and a phase of the phase whose position cannot be detected is estimated by a position estimating part 6 based on the position detection timing of two detectable phases to perform commutation.

Abstract translation: 要解决的问题：提供一种可以容易地扩展到各种型号的无刷直流电动机驱动装置，不需要位置传感器，也不需要通过无刷直流电动机的电动机常数和速度进行调节。 解决方案：三相无刷直流电动机4的两相连接到由两相桥形成的逆变器3的输出端，以及形成平滑整流电路2的串联连接的平滑电容器2e和2f的连接线 电压倍增器整流器连接到剩余的一个相。 无刷直流电动机4通过基于感应电压的位置检测部分5的位置检测由矩形波驱动，并且通过位置估计部6基于位置检测来估计不能检测位置的相位的相位 两个可检测相位的时间进行换向。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2011139573A

公开(公告)日：2011-07-14

申请号：JP2009297428

申请日：2009-12-28

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： TAKEOKA YOSHINORI ,  TANAKA HIDENAO

IPC: H02P6/12 ,  F04B49/10 ,  H02P6/16 ,  H02P6/18

Abstract: PROBLEM TO BE SOLVED: To expand a drive region by improving stability in high load and high-speed drive of a brushless DC motor. SOLUTION: A motor drive device includes: a brushless DC motor 4 comprising a rotor having a permanent magnet and a stator having a three-phase winding; and an inverter 3 for supplying power to the three-phase winding. In the motor drive device, the phase of a current flowing through the winding of the brushless DC motor is unfailingly acquired by selecting either a winding current or an output terminal voltage of the inverter 3 depending on the drive state of the brushless DC motor 4, the winding for energizing the brushless DC motor 4 is switched so that the current phase and voltage phase of the brushless DC motor 4 can keep a predetermined phase relation, and the predetermined phase relation kept between the current phase and voltage phase is changed depending on the amount of change of the peak of current flowing through the brushless DC motor 4 to expand the load region which can be driven by the brushless DC motor 4. Thus, even if any component is out of order, the motor can be driven while preventing step-out or overcurrent, thereby stably driving high load at a high speed. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：通过提高无刷直流电动机的高负载和高速驱动的稳定性来扩大驱动区域。 电动机驱动装置包括：无刷直流电动机4，包括具有永磁体的转子和具有三相绕组的定子; 以及用于向三相绕组供电的逆变器3。 在电动机驱动装置中，通过根据无刷直流电动机4的驱动状态选择逆变器3的绕组电流或输出端子电压，可靠地获得流过无刷直流电动机的绕组的电流的相位， 用于激励无刷直流电动机4的绕组被切换，使得无刷直流电动机4的电流相位和电压相位可以保持预定的相位关系，并且保持在当前相位和电压相位之间的预定相位关系根据 流过无刷直流电动机4的电流的峰值的变化量，以扩大可由无刷直流电动机4驱动的负载区域。因此，即使任何部件故障，也可以驱动电动机，同时防止步骤 输出或过电流，从而稳定地高速地驱动高负载。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2011010475A

公开(公告)日：2011-01-13

申请号：JP2009151969

申请日：2009-06-26

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： TAKEOKA YOSHINORI ,  TANAKA HIDENAO

IPC: H02P6/18

Abstract: PROBLEM TO BE SOLVED: To expand a driving region by improving stability in high-load and high-speed drive of brushless DC motors.SOLUTION: The brushless DC motor 4 includes a rotor having a permanent magnet and a stator having three-phase winding, and an inverter 3 for supplying power to the three-phase winding. The phase of current flowing to winding of the brushless DC motor is reliably acquired by selecting one of a winding current and an output terminal voltage of the inverter 3 according to a drive state of the brushless DC motor 4. Winding for energizing the brushless DC motor 4 is changed so that current and voltage phases of the brushless DC motor 4 hold a prescribed phase relationship. The prescribed relationship held between the current and voltage phases is changed by a detection value of the current flowing to the brushless DC motor 4. As a result, a drivable load region of the brushless DC motor 4 can be expanded, and drive is performed at spark advance and speed not causing the loss of synchronism and an excessive current even if a load becomes excessive, thus achieving high-speed, high-load, and stable drive.

Abstract translation: 要解决的问题：通过提高无刷直流电动机的高负载和高速驱动的稳定性来扩大驱动区域。解决方案：无刷直流电动机4包括具有永磁体的转子和具有三相绕组的定子， 以及用于向三相绕组供电的逆变器3。 通过根据无刷直流电动机4的驱动状态选择逆变器3的绕组电流和输出端子电压中的一个，可靠地获得流向无刷直流电动机的绕组的电流的相位。为无刷直流电动机通电的绕组 4改变为使得无刷直流电动机4的电流和电压相位保持规定的相位关系。 通过流过无刷直流电动机4的电流的检测值来改变电流相位和电压相位之间的规定关系。结果，可以扩大无刷直流电动机4的可驱动负载区域，并且可以在 即使负载变得过大，也不会引起同步失速和电流过大，从而实现高速，高负荷，稳定的驱动。

公开(公告)号：JP2010239767A

公开(公告)日：2010-10-21

申请号：JP2009084610

申请日：2009-03-31

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： TANAKA HIDENAO ,  TAKEOKA YOSHINORI

IPC: H02P6/18

Abstract: PROBLEM TO BE SOLVED: To expand a drive range by improving stability during high-load and high-speed driving of a brushless DC motor. SOLUTION: There are provided a brushless DC motor 4, including a rotor 4a having a permanent magnet and a stator 4b having a three-phase winding, and an inverter 3, which supplies power to the three-phase winding 4a, the phase of the current flowing on the coil of the brushless DC motor is surely acquired by selecting either a coil current or an output terminal voltage of the inverter 3 according to driving state of the brushless DC motor 4, the coil for electrifying the brushless DC motor is so switched as to hold a predetermined phase relationship between a voltage phase and a current phase of the brushless DC motor 4, and the load range in which the brushless DC motor can be driven is expanded for realizing stable driving a high-speed and high loading. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：通过提高无刷直流电动机的高负载和高速驱动期间的稳定性来扩大驱动范围。 解决方案：提供一种无刷DC电动机4，其包括具有永磁体的转子4a和具有三相绕组的定子4b，以及向三相绕组4a供电的逆变器3， 通过根据无刷直流电动机4的驱动状态选择线圈电流或逆变器3的输出端子电压，用于使无刷直流电动机通电的线圈，可靠地获取流过无刷直流电动机的线圈的电流的相位 被切换为保持无刷直流电动机4的电压相位和电流相位之间的预定相位关系，并且可以驱动无刷直流电动机的负载范围被扩大，以实现高速和高速的稳定驱动 加载。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2009293895A

公开(公告)日：2009-12-17

申请号：JP2008150097

申请日：2008-06-09

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： TAKEOKA YOSHINORI ,  KAKITA KENICHI ,  MAMEMOTO TOSHIAKI ,  KAMISAKO TOYOSHI ,  UEDA YOSHIHIRO

IPC: F25D23/00 ,  F25D21/02

Abstract: PROBLEM TO BE SOLVED: To provide a refrigerator provided with an atomization part within a storage chamber, the atomization part spraying a stable spraying quantity of mist while simplifying a device for supplying water.
SOLUTION: The refrigerator includes a dew condensation possibility determination means which detects a state of the storage chamber and determines dew condensation possibility to the atomization part 131, and a control means which operates a voltage application part 132 when dew condensation is possible as the result of the dew condensation possibility determination means, and stops the voltage application part when dew condensation is impossible. Accordingly, the atomization part is operated only when dew condensation water is collected from moisture by inflow of external air or transpiration of vegetables or the like by detecting the environment within the storage chamber, and a stable spraying quantity of mist is surely sprayed.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了提供一种在储藏室内设置有雾化部分的冰箱，雾化部分喷射稳定的喷雾量，同时简化了供水装置。 解决方案：冰箱包括结露可能性确定装置，其检测储存室的状态并确定雾化部分131的结露可能性;以及控制装置，其在结露可能时操作电压施加部132作为 结露可能性确定装置的结果，并且当结露不可能时停止施加电压部分。 因此，通过检测储存室内的环境，雾化部仅在通过外部空气的流入或蔬菜等的蒸发从水分中收集到凝结水的情况下进行操作，并且确实喷雾稳定的喷雾量。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2014087078A

公开(公告)日：2014-05-12

申请号：JP2012231382

申请日：2012-10-19

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： TANAKA HIDENAO ,  TAKEOKA YOSHINORI

IPC: H02P6/10 ,  F25D11/00 ,  H02P6/18

Abstract: PROBLEM TO BE SOLVED: To provide a low noise and high efficiency motor drive unit.SOLUTION: The motor drive unit comprises: a brushless DC motor that has permanent magnets on a rotor; a position detection circuit that detects the rotation position from a reverse voltage generated due to the rotation of the rotor; a correction section that sets a correction amount to an output from the position detection circuit; a position determination section that determines the rotation position of the brushless DC motor; commutation means that generates a waveform to be supplied to a three-phase winding of the brushless DC motor based on the signal from the position determination section; and an inverter that drives the brushless DC motor using the waveform generated by the commutation means. When there is a possibility that an error may be included in a rotation position detection of the brushless DC motor, the position detection accuracy can be increased by adding a correction amount which set by the correction section to an output signal from the position detection section. The speed stability of the brushless DC motor is increased while reducing drive vibrations resulting in an enhanced efficiency.

Abstract translation: 要解决的问题：提供低噪音，高效率的电机驱动单元。解决方案：电机驱动单元包括：在转子上具有永磁体的无刷直流电动机; 位置检测电路，由于转子的旋转而产生的反向电压检测旋转位置; 校正部，其对位置检测电路的输出设定校正量; 确定所述无刷直流电动机的旋转位置的位置确定部; 换向是指根据来自位置确定部分的信号产生要提供给无刷直流电动机的三相绕组的波形; 以及使用由换向装置生成的波形来驱动无刷直流电动机的逆变器。 当在无刷直流电动机的旋转位置检测中可能包含错误的可能性时，可以通过将由校正部分设定的校正量与来自位置检测部分的输出信号相加来增加位置检测精度。 无刷直流电动机的速度稳定性增加，同时减少驱动振动，从而提高效率。

公开(公告)号：JP2013090371A

公开(公告)日：2013-05-13

申请号：JP2011226446

申请日：2011-10-14

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： TAKEOKA YOSHINORI ,  TANAKA HIDENAO

IPC: H02P6/18

Abstract: PROBLEM TO BE SOLVED: To provide a motor drive unit capable of stably driving a system in an unstable state with an extremely light load or in a state with an extremely heavy load.SOLUTION: The motor drive unit includes: an energization angle determination section 10 that determines the energization angle in a range between 120° or larger and smaller than 180° based on the terminal voltage generation timing obtained by a terminal voltage obtaining section 5; and a second waveform generating section 12 that outputs a second waveform signal using a frequency set by a frequency setting section 9 and the energization angle determined by the energization angle determination section 10. Since a corrected waveform signal is output in which the second waveform signal is corrected so that the terminal voltage obtained by the terminal voltage obtaining section 5 gets closer to a predetermined state, the current phase is stabilized in a wide load range; thus a stable motor drive unit is achieved.

Abstract translation: 要解决的问题：提供一种能够以极轻的负载或处于极重负载的状态下稳定地驱动处于不稳定状态的系统的电动机构驱动单元。 电动机驱动单元包括：通电角度判定部10，其基于由端子电压获取部5获得的端子电压产生定时，将通电角度确定在120°以上且小于180°的范围内 ; 以及第二波形生成部12，其使用由频率设定部9设定的频率和由通电角度判定部10决定的通电角度来输出第二波形信号。由于输出了第二波形信号为第二波形信号 校正为使得由端子电压获得部分5获得的端子电压更接近于预定状态，电流相位在宽的负载范围内稳定; 从而实现了稳定的电机驱动单元。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2011010432A

公开(公告)日：2011-01-13

申请号：JP2009150644

申请日：2009-06-25

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： TAKEOKA YOSHINORI ,  TANAKA HIDENAO

IPC: H02P27/08 ,  H02M7/48

Abstract: PROBLEM TO BE SOLVED: To solve the problem wherein positions cannot be detected and drive cannot be performed stably due to voltage drop close to 0V when the capacitance of a smoothing capacitor is reduced for miniaturization.SOLUTION: When a voltage decision means 114 determines that a pulsating bus voltage drops lower than a preset threshold, a control means 114 of controlling a voltage to be applied to a motor 106 from an inverter 105 reduces an output to the motor 106 until the motor 106 enters a regenerative state, thus preventing the voltage between DC buses from dropping close to 0 V even if the capacitance of the capacitor 103 is reduced extremely and detecting positions, thereby performing stable drive.

Abstract translation: 要解决的问题：为了解决当平滑电容器的电容减小以致小型化时，由于电压降接近0V而不能稳定地执行位置的驱动不能稳定的驱动。解决方案：当电压判定装置114确定为 脉冲总线电压降低到低于预设阈值的情况下，控制装置114控制从反相器105施加到电动机106的电压，从而减小对电动机106的输出，直到电动机106进入再生状态，从而防止电动机106之间的电压 即使电容器103的电容被极大地降低并且检测位置，直流母线也接近0V，从而进行稳定的驱动。

公开(公告)号：JP2011010431A

公开(公告)日：2011-01-13

申请号：JP2009150643

申请日：2009-06-25

Applicant: Panasonic Corp ,  パナソニック株式会社

Inventor： TAKEOKA YOSHINORI ,  TANAKA HIDENAO

IPC: H02P6/18

Abstract: PROBLEM TO BE SOLVED: To provide a reliable drive device of brushless DC motors that improves stability in high-load and high-speed drive of brushless DC motors, expands driving regions, suppresses unstable states caused by external factors, and is stably driven even if loads become excessive.SOLUTION: High-speed drive is performed by output of a waveform correction section 17 for correcting an output so that a state of current and voltage, where a current voltage state acquisition means 16 acquires output of a second waveform generation unit 15 outputted at a prescribed frequency under a high load, coincides with an aimed state of current and voltage, and a protection means 20 for performing protection control according to a state grasped by the current voltage state acquisition means 16 is provided, thus suppressing variations and performing stable drive even near a critical load.

Abstract translation: 要解决的问题：为了提供无刷直流电机的可靠驱动装置，提高无刷直流电动机的高负载和高速驱动的稳定性，扩大驱动区域，抑制由外部因素引起的不稳定状态，即使 负载变得过大。解决方案：通过波形校正部分17的输出执行高速驱动，用于校正输出，使得当前电压状态获取装置16获取第二波形发生单元15的输出的电流和电压状态 在高负载下以规定的频率输出与电流和电压的目标状态一致，并且提供根据当前电压状态获取装置16掌握的状态进行保护控制的保护装置20，从而抑制变化和执行 即使在临界负荷附近也能稳定运行。