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    • 2. 发明公开
    • Voltage-controlled starting relay for induction motor
    • Spannungsgeregeltes Startrelayfüreinen Induktionsmotor
    • EP1315279A2
    • 2003-05-28
    • EP02023625.3
    • 2002-10-18
    • Kim, In-SeokKim, Young-Jun
    • The designation of the inventor has not yet been filed
    • H02P1/42
    • H02P1/42H02P1/029H02P1/44
    • There is provided a voltage-controlled electronic relay for starting a single-phase induction motor, which includes: a power supply unit (310), configured of a bridge diode (BD), for supplying power to circuit elements of the starting relay when AC power of the induction motor is turned on; a triac (306) for applying the AC power to a starting coil (W3) of the induction motor or cutting off the AC power; a signal input unit (322) for sensing a voltage induced to the starting coil; a hysteresis unit (324) for outputting an ON control signal at the initial starting stage, generating an OFF control signal for turning off the switch when the induced voltage sensed by the sensing element reaches a predetermined OFF reference voltage, and generating the ON control signal for turning on the switch again when the induced voltage becomes lower than a predetermined ON reference voltage during a normal operation period; and a triggering unit (330) for turning on the switch according to the ON control signal of the hysteresis unit and turning off the switch according to the OFF control signal. Accordingly, impulse noise generated across the triac is removed using a spark killer and stabilized voltage is provided to the circuit elements.
    • 提供了一种用于启动单相感应电动机的压控电子继电器,其包括:电源单元(310),其由桥式二极管(BD)构成,用于在AC时向起动继电器的电路元件供电 感应电动机的电源接通; 用于将AC电力施加到感应电动机的起动线圈(W3)或切断AC电力的三端双向可控硅(306); 信号输入单元(322),用于感测对起动线圈感应的电压; 用于在初始起动阶段输出ON控制信号的滞后单元(324),当由感测元件感测到的感应电压达到预定的OFF参考电压时,产生关闭开关的OFF控制信号,并产生ON控制信号 当在正常操作期间感应电压变得低于预定的ON参考电压时再次接通开关; 以及触发单元,用于根据滞后单元的ON控制信号接通开关,并根据OFF控制信号关断开关。 因此,使用火花激光器去除在三端双向可控硅开关产生的脉冲噪声,并且向电路元件提供稳定的电压。
    • 3. 发明公开
    • Method for starting single phase induction motor and electronic relay using the same
    • 一种用于启动单相感应电动机和电子中继方法,它适用于它
    • EP2280475A3
    • 2016-01-13
    • EP10002989.1
    • 2010-03-22
    • Kim, Young-Jun
    • Kim, Young-Jun
    • H02P1/42H02P1/02
    • H02P1/42H02P1/029
    • The present invention relates to an electronic relay for single phase induction motor, which model a start torque curve with an induced voltage to perform control in a programming scheme, and thus can minimize a start failure and increase compatibility in order for be applied to motors based on various standards. The electronic relay for single phase induction motor includes a triac, an induced voltage detection circuit, a window comparison circuit, and a Micro Control unit (MCU). The triac is connected between a start winding and start capacitor of the single phase induction motor to control (break or connect) a current flow of the start winding. The induced voltage detection circuit detects an induced voltage of the start winding proportional to an angular velocity of the motor. The window comparison circuit detects a both-end voltage of the triac to detect a zero-point voltage of a motor line voltage before start and to detect a zero-point current of a start winding current during start. The MCU turns on the triac at the zero-point voltage of the motor line voltage to begin starting according to a signal of the window comparison circuit, triggers a gate of the triac for a certain delay time at every zero-point current time of the start winding current to maintain a turn-on state of the triac according to the signal of the window comparison circuit during start, receives the induced voltage of the start winding from the induced voltage detection circuit to calculate a variation rate of the induced voltage proportional to an acceleration torque of the motor during start, checks that in which a start torque is the maximum with that in which an acceleration torque is the maximum, and turns off the triac when the acceleration torque begins decreasing.
    • 4. 发明公开
    • Method for starting single phase induction motor and electronic relay using the same
    • 一种用于启动单相感应电动机和电子中继方法,它适用于它
    • EP2280475A2
    • 2011-02-02
    • EP10002989.1
    • 2010-03-22
    • Kim, Young-Jun
    • Kim, Young-Jun
    • H02P1/42H02P1/02
    • H02P1/42H02P1/029
    • The present invention relates to an electronic relay for single phase induction motor, which model a start torque curve with an induced voltage to perform control in a programming scheme, and thus can minimize a start failure and increase compatibility in order for be applied to motors based on various standards. The electronic relay for single phase induction motor includes a triac, an induced voltage detection circuit, a window comparison circuit, and a Micro Control unit (MCU). The triac is connected between a start winding and start capacitor of the single phase induction motor to control (break or connect) a current flow of the start winding. The induced voltage detection circuit detects an induced voltage of the start winding proportional to an angular velocity of the motor. The window comparison circuit detects a both-end voltage of the triac to detect a zero-point voltage of a motor line voltage before start and to detect a zero-point current of a start winding current during start. The MCU turns on the triac at the zero-point voltage of the motor line voltage to begin starting according to a signal of the window comparison circuit, triggers a gate of the triac for a certain delay time at every zero-point current time of the start winding current to maintain a turn-on state of the triac according to the signal of the window comparison circuit during start, receives the induced voltage of the start winding from the induced voltage detection circuit to calculate a variation rate of the induced voltage proportional to an acceleration torque of the motor during start, checks that in which a start torque is the maximum with that in which an acceleration torque is the maximum, and turns off the triac when the acceleration torque begins decreasing.
    • 本发明涉及到在用于单相感应电动机的电子继电器,whichModel与感应电压的起始扭矩曲线在编程方案进行控制,并且因此可以最小化启动失败和增加的相容性,以便用于基于被应用到电机 各种标准。 对于单相感应电动机的电子继电器包括一个三端双向可控硅感应电压检测电路,一个窗口比较电路,以及微控制单元(MCU)。 三端双向可控硅连接在起动绕组和启动单相感应电机,以控制(中断或连接)起动绕组的电流流动的电容器之间。 开始的感应电压的感应电压检测电路检测在所述电动机的角速度卷绕成比例。 窗口比较电路检测双向可控硅的两端电压到开始之前检测的电动机线电压的零点的电压和起动期间检测起动绕组电流的零点电流。 该MCU接通在电动机线电压,以开始起动雅丁到窗口比较电路的信号的零点电压的三端双向可控硅,触发可控硅为一定的延迟时间的栅极处的每一个零点当前时间 起动绕组电流启动期间保持导通三端双向可控硅雅丁到窗口比较电路的信号的状态,接收到启动从感应电压检测电路绕组的感应电压,计算正比于感应电压的变化率 启动期间的电动机的加速转矩,检查的确在哪一个起动转矩是与最大“那个”在其中加速转矩是最大,并且当加速度扭矩开始减少关断三端双向可控硅。
    • 6. 发明授权
    • Method for starting single phase induction motor and electronic relay using the same
    • EP2280475B1
    • 2018-07-04
    • EP10002989.1
    • 2010-03-22
    • Kim, Young-Jun
    • Kim, Young-Jun
    • H02P1/42H02P1/02
    • H02P1/42H02P1/029
    • The present invention relates to an electronic relay for single phase induction motor, which model a start torque curve with an induced voltage to perform control in a programming scheme, and thus can minimize a start failure and increase compatibility in order for be applied to motors based on various standards. The electronic relay for single phase induction motor includes a triac, an induced voltage detection circuit, a window comparison circuit, and a Micro Control unit (MCU). The triac is connected between a start winding and start capacitor of the single phase induction motor to control (break or connect) a current flow of the start winding. The induced voltage detection circuit detects an induced voltage of the start winding proportional to an angular velocity of the motor. The window comparison circuit detects a both-end voltage of the triac to detect a zero-point voltage of a motor line voltage before start and to detect a zero-point current of a start winding current during start. The MCU turns on the triac at the zero-point voltage of the motor line voltage to begin starting according to a signal of the window comparison circuit, triggers a gate of the triac for a certain delay time at every zero-point current time of the start winding current to maintain a turn-on state of the triac according to the signal of the window comparison circuit during start, receives the induced voltage of the start winding from the induced voltage detection circuit to calculate a variation rate of the induced voltage proportional to an acceleration torque of the motor during start, checks that in which a start torque is the maximum with that in which an acceleration torque is the maximum, and turns off the triac when the acceleration torque begins decreasing.
    • 8. 发明公开
    • Voltage-controlled starting relay for induction motor
    • 电压控制起动继电器感应电动机
    • EP1315279A3
    • 2005-01-19
    • EP02023625.3
    • 2002-10-18
    • Kim, In-SeokKim, Young-Jun
    • Kim, In-SeokKim, Young-Jun
    • H02P1/44
    • H02P1/42H02P1/029H02P1/44
    • There is provided a voltage-controlled electronic relay for starting a single-phase induction motor, which includes: a power supply unit (310), configured of a bridge diode (BD), for supplying power to circuit elements of the starting relay when AC power of the induction motor is turned on; a triac (306) for applying the AC power to a starting coil (W3) of the induction motor or cutting off the AC power; a signal input unit (322) for sensing a voltage induced to the starting coil; a hysteresis unit (324) for outputting an ON control signal at the initial starting stage, generating an OFF control signal for turning off the switch when the induced voltage sensed by the sensing element reaches a predetermined OFF reference voltage, and generating the ON control signal for turning on the switch again when the induced voltage becomes lower than a predetermined ON reference voltage during a normal operation period; and a triggering unit (330) for turning on the switch according to the ON control signal of the hysteresis unit and turning off the switch according to the OFF control signal. Accordingly, impulse noise generated across the triac is removed using a spark killer and stabilized voltage is provided to the circuit elements.