公开(公告)号：US20150180327A1

公开(公告)日：2015-06-25

申请号：US14576144

申请日：2014-12-18

Applicant: Hiromasa MATSUDA

Inventor： Hiromasa MATSUDA

IPC: H02M1/32 ,  H01H47/02

CPC classification number: H02M1/32 ,  H01H47/02 ,  H02H7/0805 ,  H02H7/097 ,  H02H11/002

Abstract: A phase sequence switching device for a three-phase power supply is disposed in a power feed path from a three-phase power supply to a load and includes a power-supply side relay including two Form C contact relays connected to two phases of the three-phase power supply respectively, a load side relay including two Form C contact relays connected between the power-supply side relay and the load, and a switching circuit connected between the power-supply side relay and the load side relay and wired to be capable of switching by a relay action between a state where the three-phase power supply is connected to a positive phase so that power is supplied to the load side and a state where the three-phase power supply is connected to a reverse phase so that power is supplied to the load side.

Abstract translation: 用于三相电源的相序切换装置设置在从三相电源到负载的馈电路径中，并且包括电源侧继电器，包括两个连接到三相电源的两相的C形接触继电器 相电源，负载侧继电器包括连接在电源侧继电器和负载之间的两个C型触点继电器，以及连接在电源侧继电器和负载侧继电器之间的开关电路， 在三相电源连接到正相的状态之间通过继电器动作切换，使得向负载侧供电并且三相电源连接到反相的状态，使得功率 被提供给负载侧。

公开(公告)号：US08736212B2

公开(公告)日：2014-05-27

申请号：US12970534

申请日：2010-12-16

Applicant: Kulbir S. Sandhu ,  Atila Amiri ,  Otto K. Chiu ,  Samuel K. Gee

Inventor： Kulbir S. Sandhu ,  Atila Amiri ,  Otto K. Chiu ,  Samuel K. Gee

IPC: H02P7/00 ,  G05B23/02 ,  A61B19/00

CPC classification number: H02H7/0833 ,  A61B18/1492 ,  A61B34/30 ,  A61B2017/00123 ,  A61B2034/2051 ,  A61B2034/301 ,  H02H7/097

Abstract: A robotic catheter control system includes a plurality of electric motors. Diagnostic logic automatically detects motor runaway fault conditions based on the current motor position, the target motor position and a predetermined tolerance parameter. Fault conditions include overshoot, movement in the a non-prescribed direction, exceeding a prescribed maximum motor speed and exceeding a prescribed maximum motor acceleration. The diagnostic logic terminates operating power to the electric motor when a fault condition is detected for any one of the motor. An error message is generated to notify the operator of the fault.

公开(公告)号：US6094023A

公开(公告)日：2000-07-25

申请号：US180419

申请日：1998-11-10

Applicant: Hans Birger Ericsson

Inventor： Hans Birger Ericsson

IPC: H02H7/097 ,  H02P3/06 ,  H02P3/10 ,  H02P3/20

CPC classification number: H02P3/10 ,  H02P3/06 ,  H02H7/097

Abstract: A method and a device for electrical braking of an all-mains motor by which disconnection of supplied feed current to the motor causes an electric switching operation, whereby electric current arranged to cause a reversed rotary direction for the rotor (1) of the motor is supplie. According to the invention, supplied braking power (P) is controlled and reduced on basis of the successive reduction of rotary speed for the motor until the rotor (1) of the motor has substantially completely ceased to rotate, preferably substantially corresponding to an inverted "soft start" for the motor, whereafter supplied braking current feed is interrupted. It is advantageously monitored whether or not normal start of the motor has been performed, electric switching to braking only being made possible provided that such a start sequence has been indicated.

Abstract translation: PCT No.PCT / SE97 / 00766 Sec。 371日期：1998年11月10日 102（e）1998年11月10日日期PCT提交1997年5月9日PCT公布。 第WO97 / 43821号公报 日期：1997年11月20日一种全电动马达的电气制动方法和电气制动装置，通过该方法和电动机的供电电流的断开导致电开关操作，由此布置成导致转子（1）的反转方向的电流 ）的电机是供应。 根据本发明，基于马达的转速的连续降低来控制和减少所提供的制动功率（P），直到马达的转子（1）已经基本上完全停止旋转，优选地基本上对应于倒置的“ 电动机的软起动“，此后供电的制动电流进给被中断。 有利地监测是否已经执行了电动机的正常启动，只要已经指示了这样的启动顺序，才能使制动成为电动切换。

公开(公告)号：US12011813B2

公开(公告)日：2024-06-18

申请号：US17014012

申请日：2020-09-08

Applicant: MAKITA CORPORATION

Inventor： Hitoshi Suzuki ,  Seitaro Hayashi ,  Motohiro Omura ,  Itsuku Kato

IPC: H02H7/097 ,  B25F5/00 ,  H02P6/12 ,  H02P6/16 ,  H02P6/22 ,  H02P6/24 ,  H02P29/028

CPC classification number: B25F5/001 ,  H02H7/097 ,  H02P29/028 ,  H02P6/12 ,  H02P6/16 ,  H02P6/22 ,  H02P6/24

Abstract: An electric work machine (1; 110; 120; 130), such as a power tool, includes a motor (11) having a rotor, a drive part (13) that supplies electric currents to drive the motor, a rotational-direction selection part (17), and a motor-control part (14; 31, 32, 40, 50, 60; 14, 40, 60, 73, 80; 14, 60, 91). The rotational-direction selection part is configured for manually setting (selecting) the rotational direction of the rotor and outputs first and second setting signals that each indicate the set (selected) rotational direction. The motor-control part controls the drive part such that the rotor rotates in the rotational direction indicated by the first setting signal and/or the second setting signal. In response to a determination that the rotational directions indicated by the first and second setting signals are inconsistent, the motor-control part stops or prevents the drive of the motor.

公开(公告)号：US20140354203A1

公开(公告)日：2014-12-04

申请号：US13908521

申请日：2013-06-03

Applicant: Black & Decker Inc.

Inventor： John C. Vanko

IPC: H02P6/00 ,  H02P6/06

CPC classification number: H02P6/003 ,  B24B23/00 ,  G01R23/15 ,  H02H7/093 ,  H02H7/097 ,  H02P6/30 ,  H02P23/24 ,  H02P29/02 ,  H02P29/10

Abstract: A reverse rotation detection module is provided for a power tool having an electric motor intended to rotate in a first direction but not an opposite second direction. The reverse rotation detection module is comprised of: a switching arrangement having a plurality of motor switches; three position sensors; a first latch circuit; a second latch circuit; and a motor driver module that is configured to receive the shutdown signal from the second latch circuit and discontinue driving the motor in response to the shutdown signal. An overspeed protection module is provided for a handheld power tool. The overspeed protection module is comprised of: an electric motor; a switching arrangement having a plurality of motor switches; a diode pump circuit; a comparator circuit; and a motor driver module that is configured to receive a shutdown signal from the comparator circuit and discontinue driving the motor in response to the shutdown signal.

Abstract translation: 为具有电动马达的电动工具提供反转检测模块，该电动机旨在沿第一方向旋转，而不是相反的第二方向。 反转检测模块包括：具有多个电动机开关的开关装置; 三位传感器; 第一锁存电路; 第二锁存电路; 以及电动机驱动器模块，其被配置为从所述第二锁存电路接收所述关闭信号，并且响应于所述关闭信号中止所述电动机的驱动。 为手持式电动工具提供超速保护模块。 超速保护模块包括：电动机; 具有多个电动机开关的开关装置; 二极管泵电路; 比较器电路; 以及电动机驱动器模块，其被配置为从所述比较器电路接收关闭信号，并且响应于所述关闭信号中止所述电动机的驱动。

公开(公告)号：US20020027432A1

公开(公告)日：2002-03-07

申请号：US09915655

申请日：2001-07-26

Applicant: Sanyo Electric Co., Ltd.

Inventor： Eiji Oohashi

IPC: G01R025/00

CPC classification number: H02H7/097 ,  H02H11/004

Abstract: A power supply negative-phase detecting circuit (10) for electronic equipment (12) using a three-phase AC power supply source includes a pulse generator (13) for generating a first pulse indicating the phase difference between any pair of two phases of three-phase AC power to be supplied to the electronic equipment and a second pulse indicating the phase difference between another pair of two phases of the three-phase AC power, a differentiating circuit (25) for generating a third pulse from the second pulse in synchronism with the rise-up of the second pulse so that the third pulse has a pulse width smaller than the phase difference between the first and second pulses, and a switching unit (14) for subjecting the first pulse and the third pulse to OR operation and turning on/off the power supply to be supplied to the electronic equipment on the basis of the OR operation result of the first and third pulses.

Abstract translation: 用于使用三相AC电源的电子设备（12）的电源负相位检测电路（10）包括：脉冲发生器（13），用于产生指示任意一对三相 提供给电子设备的相位交流电力和指示三相AC电力的另一对两相之间的相位差的第二脉冲，用于从第二脉冲同步产生第三脉冲的微分电路（25） 其中第二脉冲的上升使得第三脉冲具有小于第一和第二脉冲之间的相位差的脉冲宽度;以及用于使第一脉冲和第三脉冲进行“或”运算的切换单元（14），以及 基于第一和第三脉冲的或运算结果，打开/关闭要提供给电子设备的电源。

公开(公告)号：US6066932A

公开(公告)日：2000-05-23

申请号：US110230

申请日：1998-07-06

Applicant: Fred Fetzer

Inventor： Fred Fetzer

IPC: H02H7/097 ,  G05B5/00 ,  H02P1/00

CPC classification number: H02H7/097

Abstract: A motor reversal protection system to protect driven equipment from the inadvertent or accidental reversal of direction of a three-phase electric motor should there be a reversal of phase in the transmission power lines by transposing any pair of the three power lines. The system detects the phase sequence of the applied power and automatically provides the driven equipment with the correct phase sequence within milliseconds of depressing the motor start push button. The need for a system reset is obviated in using this novel system design. The same principles of operation also apply for use with two-phase or DC power systems.

Abstract translation: 一种电动机反转保护系统，用于保护被驱动的设备免受三相电动机方向的无意或意外反转，因此通过转置任何一对三条电力线路，传输电力线路中的相位应相反。 系统检测所施加功率的相序，并在按下电机启动按钮的毫秒内自动向驱动设备提供正确的相序。 在使用这种新颖的系统设计时，避免了系统复位的需要。 同样的操作原理也适用于两相或直流电源系统。

公开(公告)号：US08294393B2

公开(公告)日：2012-10-23

申请号：US12206077

申请日：2008-09-08

Applicant: Christopher D. Schock ,  Arthur E. Woodward

Inventor： Christopher D. Schock ,  Arthur E. Woodward

IPC: H02P1/22

CPC classification number: H02H7/097 ,  F04D25/06 ,  F04D27/001 ,  H02H1/0007

Abstract: A method for determining proper rotation direction of a reversible motor comprises the steps of: operating the motor to rotate a fan in a first direction, monitoring an operating parameter of the motor while the fan is rotated in the first direction, determining if the monitored operating parameter is within an acceptable range, determining that the first direction of rotation is not the proper rotation direction where the monitored operating parameter is not within the acceptable range, and operating the motor to rotate the fan in a second direction if the monitored operating parameter is not within the acceptable range.

Abstract translation: 一种用于确定可逆电动机的正确旋转方向的方法包括以下步骤：操作电动机沿第一方向旋转风扇，在风扇沿第一方向旋转时监测电动机的运行参数，确定监控的运行 参数在可接受的范围内，确定第一旋转方向不是正确的旋转方向，其中监视的操作参数不在可接受的范围内，并且如果所监视的操作参数是第二方向，则操作马达使风扇沿第二方向旋转 不在可接受的范围内。

公开(公告)号：US5570257A

公开(公告)日：1996-10-29

申请号：US176754

申请日：1994-01-03

Applicant: William R. Manning ,  Mark C. Carlos ,  Stanley J. Nacewicz

Inventor： William R. Manning ,  Mark C. Carlos ,  Stanley J. Nacewicz

IPC: H02H7/097 ,  H02H11/00 ,  H02P23/00 ,  H02H3/26

CPC classification number: H02H11/004 ,  H02H7/097

Abstract: A phase sequence protection circuit is shown in which first and second resistors (R1, R2) and a first capacitor (C1) all having equivalent impedance are connected in a Y configuration and coupled to power source leads (A, C, B) of a three phase power supply, resistor R1 being coupled to phase A, capacitor C1 to phase B and resistor R2 to phase C. A comparator network (12) is connected in line with the first resistor (R1) and, in one embodiment will cause a solid state switch (Q1) to conduct when the phases are out of sequence. In a second embodiment a buffer portion (COMP2) is provided to add switching hysteresis which also reverses the switching logic causing the solid state switch (Q1) to conduct when the phases are in sequence. In another embodiment the comparator network (12") is provided with the buffer portion (COMP2) for switching hysteresis and arranged to cause the solid state switch (Q1) to conduct when the phases are out of sequence. An opto-isolator (14) interfaces with the comparator network (12, 12', 12") to provide isolation. The signal from the opto-isolator in comparator network (12') controls the energization of a second solid state switch (Q2) and a relay coil (K1) used to energize a load.

Abstract translation: 示出了相序保护电路，其中具有等效阻抗的第一和第二电阻器（R1，R2）和第一电容器（C1）以Y构型连接并耦合到电源引线（A，C，B） 三相电源，电阻器R1耦合到相位A，电容器C1到相位B，电阻器R2耦合到相位C.比较器网络（12）与第一电阻器（R1）一致连接，并且在一个实施例中将引起 固态开关（Q1）在相位不合格时进行。 在第二实施例中，提供缓冲器部分（COMP2）以增加开关滞后，其也使得开关逻辑反转，导致固态开关（Q1）在相位依次时导通。 在另一个实施例中，比较器网络（12“）设置有用于切换滞后的缓冲部分（COMP2），并且被布置成当相位失效时导致固态开关（Q1）导通。 光隔离器（14）与比较器网络（12,12'，12“）接口以提供隔离。 来自比较器网络（12'）中的光隔离器的信号控制用于激励负载的第二固态开关（Q2）和继电器线圈（K1）的通电。

公开(公告)号：US5003242A

公开(公告)日：1991-03-26

申请号：US349889

申请日：1989-05-05

Applicant: James T. Liber

Inventor： James T. Liber

IPC: H02H7/08 ,  H02H7/097

CPC classification number: H02H7/097 ,  H02H7/0833

Abstract: A reduced voltage starter for gradually starting a polyphase motor having an acceleration control circuit for gradually applying power to the motor and detector circuits for detecting various fault conditions for terminating power to the motor. A shorted solid state switch detector senses when one of the semiconductor switches applying power to the motor is shorted to terminate the application of power from the remaining phases. A phase angle control circuit insures a uniform application of power to the motor. A phase rotation detection circuit detects when the three phases are in other than their correct sequence and terminates power in the event of such detection. An underload detection circuit senses when the current drops beneath a preselected reference after the motor has reached its full speed and terminates power in response to such detection. A line-to-line to line-to-neutral convertor produces signals representative of the line-to-neutral voltages which are necessary for other circuit functions.

Abstract translation: 一种降压起动器，用于逐渐启动具有用于逐渐向电动机供电的加速度控制电路的多相电动机和用于检测用于终止电动机功率的各种故障条件的检测器电路。 短路固态开关检测器检测到向电动机施加电力的半导体开关中的一个是否短路以终止来自剩余相的电力的施加。 相位角控制电路确保电机均匀地施加电力。 相位旋转检测电路检测三相何时不是其正确的序列，并且在这种检测的情况下终止电力。 欠载检测电路在电动机达到其全速之后感测电流何时下降到预选参考值，并响应于这种检测而终止电力。 线到线转换器产生代表其他电路功能所必需的线对中性电压的信号。