公开(公告)号：US20130194762A1

公开(公告)日：2013-08-01

申请号：US13718473

申请日：2012-12-18

Applicant: Minebea Co., Ltd.

Inventor： Hidetoshi HIJIKATA ,  Takayuki MATSUI ,  Kazuo TAKADA ,  Haruka MIYAJI

IPC: H05K1/02

CPC classification number: H05K1/0271 ,  H05K1/028 ,  H05K1/0281 ,  H05K1/147 ,  H05K2201/10204

Abstract: A motor control device includes a circuit board having a control circuit controlling electric power to be supplied to a motor, a base fixedly supporting the circuit board, a flexible printed circuit supplying electric power to the motor, a pin terminal disposed on the circuit board, being electrically connected with the control circuit, a dummy pin terminal disposed on the circuit board, being electrically free from the control circuit, a wiring pattern land disposed on the FPC, being electrically connected with the pin terminal, and a dummy wiring pattern land disposed on the FPC, being connected with the dummy pin terminal.

Abstract translation: 一种电动机控制装置，包括：电路板，其具有控制供给电动机的电力的控制电路;固定地支撑所述电路板的基座;向所述电动机供给电力的柔性印刷电路;配置在所述电路基板上的销子端子; 与所述控制电路电连接，设置在所述电路板上的虚拟针端子与所述控制电路电气相连，设置在所述FPC上的布线图案区域与所述引脚端子电连接，以及设置的虚拟布线图案区域 在FPC上，与虚拟针端子连接。

公开(公告)号：US20150042258A1

公开(公告)日：2015-02-12

申请号：US14301579

申请日：2014-06-11

Applicant: MINEBEA CO., LTD.

Inventor： Kazuo TAKADA ,  Takayuki MATSUI ,  Haruka MIYAJI

IPC: H02P8/24 ,  H02P8/10 ,  H02P8/38

CPC classification number: H02P8/24 ,  H02P8/10 ,  H02P8/28 ,  H02P8/38

Abstract: There is provided a control device for a stepping motor, configured to apply an excitation current to multiple coils to rotate a rotor. The control device includes a drive unit configured to apply a drive voltage to the coils, and a control unit configured to control the drive voltage applied by the drive unit, wherein the control unit includes a stop control unit configured to perform, during a hold period of a stop period of the stepping motor, a stop control which gradually decreases a magnitude of the excitation current flowing in the coils such that the rotor moves to a predetermined stop position, and wherein the stop control unit is configured to perform the stop control such that a variation amount of the excitation current per unit time becomes a predetermined threshold value for the stop period or less.

Abstract translation: 提供了一种用于步进电动机的控制装置，其被配置为向多个线圈施加激励电流以使转子旋转。 所述控制装置包括被配置为向所述线圈施加驱动电压的驱动单元和被配置为控制由所述驱动单元施加的驱动电压的控制单元，其中所述控制单元包括停止控制单元，所述停止控制单元被配置为在保持期间 步骤电动机的停止期间，使所述线圈中流过的励磁电流的大小逐渐减小以使得所述转子移动到规定的停止位置的停止控制，所述停止控制部被配置为进行所述停止控制， 每单位时间的激励电流的变化量成为停止期间以下的预定阈值。

公开(公告)号：US20130193814A1

公开(公告)日：2013-08-01

申请号：US13718530

申请日：2012-12-18

Applicant: MINEBEA CO., LTD.

Inventor： Haruka MIYAJI ,  Takayuki MATSUI ,  Tomoyuki SUZUKI

IPC: H02K13/00

CPC classification number: H02K13/00 ,  H02K3/525 ,  H02K5/225 ,  H02K2211/03

Abstract: A motor includes a rotor, a stator, an excitation coil, and a holder disposed on an outer side of the stator to hold a flexible printed circuit board supplying drive power, wherein the holder includes a main body mounting the flexible printed circuit board thereon, a bridging portion disposed along one of long sides on a first face a of the main body to form a first opening allowing the flexible printed circuit board to be inserted therethrough, and an engaging portion disposed along each of short sides on a second face of the main body to removably fit with a part of a terminal block of the excitation coil.

Abstract translation: 电动机包括转子，定子，励磁线圈和设置在定子的外侧上的保持器，用于保持提供驱动力的柔性印刷电路板，其中保持器包括在其上安装柔性印刷电路板的主体， 桥接部分，沿着主体的第一面a上的一个长边设置，以形成允许柔性印刷电路板插入其中的第一开口;以及沿着每个短边设置在第二面上的接合部分， 主体可拆卸地与励磁线圈的端子块的一部分配合。

公开(公告)号：US20140203748A1

公开(公告)日：2014-07-24

申请号：US14088641

申请日：2013-11-25

Applicant: MINEBEA CO., LTD.

Inventor： Kazuo TAKADA ,  Takayuki MATSUI ,  Scott JACOBS

IPC: H02P29/00

CPC classification number: H02P29/62 ,  H02P8/10

Abstract: There is provided a motor control device for an actuator having a motor, including a measuring unit configured to measure a temperature of the actuator or a temperature corresponding to the temperature of the actuator, a determining unit configured to determine whether the temperature measured by the measuring unit is lower than a preset temperature, and a boost control unit configured to perform boost control at activation of the motor to increase drive power supplied to the motor if the determining unit determines that the temperature measured by the measuring unit is lower than the preset temperature. The boost control unit is configured to perform the boost control such that, only within a boost period after starting activation of the motor, drive power larger than that supplied to the motor during steady driving after the boost period is supplied to the motor.

Abstract translation: 提供了一种用于具有电动机的致动器的电动机控制装置，包括：测量单元，被配置为测量致动器的温度或与致动器的温度相对应的温度;确定单元，被配置为确定由测量值测量的温度 单元低于预设温度，以及升压控制单元，其被配置为如果所述确定单元确定由所述测量单元测量的温度低于所述预设温度，则在启动所述电动机时执行升压控制以增加供应给所述电动机的驱动功率 。 升压控制单元被配置为执行升压控制，使得仅在电动机起动之后的升压时段内，在将升压期间提供给电动机之后，驱动功率大于在稳定驱动期间提供给电动机的功率。

公开(公告)号：US20130229139A1

公开(公告)日：2013-09-05

申请号：US13771500

申请日：2013-02-20

Applicant: MINEBEA CO., LTD.

Inventor： Kazuo TAKADA ,  Takayuki MATSUI ,  Scott JACOBS

IPC: H02P8/38

CPC classification number: H02P8/38

Abstract: There is provided a motor control device configured to control an energization state of a coil of each phase for driving a stepping motor having multiple phase coils. The motor control device includes a measuring unit configured to measure a back electromotive voltage induced at a coil of a phase for which energization is stopped, among the multiple phase coils, an acquiring unit configured to acquire temperature information on temperature of the stepping motor or on temperature corresponding to the temperature of the stepping motor, and a detecting unit configured to detect whether the stepping motor is out of step or not based on a result obtained by the measuring unit and the temperature information acquired by the acquiring unit.

Abstract translation: 提供了一种电动机控制装置，其被配置为控制用于驱动具有多个相线圈的步进电动机的每相线圈的通电状态。 所述电动机控制装置包括：测量单元，被配置为测量在所述多个相位线圈中在停止通电的相位的线圈处感应的反电动势电压;获取单元，被配置为获取关于所述步进电动机的温度的温度信息， 温度对应于步进电机的温度，以及检测单元，其被配置为基于由测量单元获得的结果和由获取单元获取的温度信息来检测步进电机是否失步。

公开(公告)号：US20160276974A1

公开(公告)日：2016-09-22

申请号：US15070695

申请日：2016-03-15

Applicant: MINEBEA CO., LTD.

Inventor： Shigeki MIYAJI ,  Takayuki MATSUI ,  Tetsuya SEKI

IPC: H02P27/06

CPC classification number: H02P29/50 ,  H02P8/32

Abstract: A motor drive controller includes: a control circuit that controls an AC current flowing in a motor; a frequency modulation unit that frequency-modulates a speed of the motor when the motor is driven at a predetermined speed; and a current effective value controller that decreases an effective value of the AC current flowing in the motor as the speed of the motor modulated by the frequency modulation unit becomes closer to a resonant frequency of the motor.

Abstract translation: 电机驱动控制器包括：控制电动机，其控制在电动机中流动的AC电流; 频率调制单元，其在以预定速度驱动所述电动机时对所述电动机的速度进行频率调制; 以及电流有效值控制器，其随着由调频单元调制的电动机的速度变得更接近于电动机的谐振频率，而降低在电动机中流动的AC电流的有效值。

公开(公告)号：US20150214878A1

公开(公告)日：2015-07-30

申请号：US14546342

申请日：2014-11-18

Applicant: MINEBEA CO., LTD.

Inventor： Kazuo TAKADA ,  Takayuki MATSUI

IPC: H02P8/38

CPC classification number: H02P8/38

Abstract: There is provided a motor control device for controlling a stepping motor having at least two coils. The motor control device includes a controller applies a pulse voltage being subjected to pulse width modulation to each of the coils and provides a stop period to a target coil being subjected to switching of a direction of the coil current, during which the application of the pulse voltage to the target coil is temporarily stopped. The controller also performs a control to set on-duty of the pulse voltage applied to all of the coils except the target coil to be either 100% or 0% during the stop period. An out-of step of the stepping motor is detected when a back electromotive voltage induced in the target coil during the stop period satisfies a predetermined out-of-step determination criterion.

Abstract translation: 提供了一种用于控制具有至少两个线圈的步进电动机的电动机控制装置。 电动机控制装置包括：控制器对每个线圈施加经受脉冲宽度调制的脉冲电压，并且向正被切换线圈电流方向的目标线圈提供停止时段，在此期间施加脉冲 临时停止对目标线圈的电压。 控制器还执行控制，以在停止期间将施加到除目标线圈之外的所有线圈的脉冲电压的占空比设置为100％或0％。 当在停止时段期间在目标线圈中感应的反电动势电压满足预定的失步判定标准时，检测步进电动机的失步。

公开(公告)号：US20140176039A1

公开(公告)日：2014-06-26

申请号：US14088563

申请日：2013-11-25

Applicant: MINEBEA CO., LTD.

Inventor： Kazuo TAKADA ,  Takayuki MATSUI ,  Scott JACOBS ,  Hidetoshi HIJIKATA

IPC: H02P8/38

CPC classification number: H02P8/38

Abstract: There is provided a motor control device controlling an energizing state of a coil of each phase for driving a stepping motor having multiple phase coils. The motor control device includes a detecting unit configured to detect whether the stepping motor is out of step, and a reverse rotating unit configured, when the detecting unit detects that the stepping motor is out of step, to rotate the stepping motor in a second rotation direction reverse to a first rotation direction, which is a rotation direction of the stepping motor before detecting out-of-step, by a number of steps with which a stress received by the stepping motor is alleviated, before the stepping motor spontaneously rotates in the second direction.

Abstract translation: 提供一种电动机控制装置，其控制用于驱动具有多个相线圈的步进电动机的各相线圈的通电状态。 电动机控制装置包括：检测单元，其被配置为检测步进电机是否失步;以及反转旋转单元，当所述检测单元检测到所述步进电机不合格时，使所述步进电动机以第二旋转方式旋转 在步进电动机在步进电动机自动旋转之前，步进电机在检测失步之前的旋转方向与步进电机接收的应力减少的步数相反的第一旋转方向 第二个方向