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    MOTOR DRIVING APPARATUS AND HOME APPLIANCE INCLUDING THE SAME
    4.
    发明公开
    MOTOR DRIVING APPARATUS AND HOME APPLIANCE INCLUDING THE SAME 有权
    MOTORANTRIEBSVORRICHTUNG UNDHAUSHALTSGERÄTDAMIT

    公开(公告)号：EP3133730A1

    公开(公告)日：2017-02-22

    申请号：EP16183489.0

    申请日：2016-08-10

    申请人： LG ELECTRONICS INC.

    发明人： JANG, Minho ,  LEE, Junho ,  LEE, Chungill

    IPC分类号： H02P6/20 ,  H02P6/22 ,  H02P6/18

    CPC分类号： H02P21/18 ,  H02P6/18 ,  H02P6/183 ,  H02P6/20 ,  H02P6/22 ,  H02P27/06

    摘要： Disclosed herein are a motor driving apparatus (220) and a home appliance including the same. The motor driving apparatus (220) and the home appliance include an inverter (420) to convert a direct current (DC) power into an alternating current (AC) power through a switching operation and to output the converted AC power to a motor (230), an output current detector (E) to detect an output current flowing through the motor (230), a controller (430) to control the inverter (420), wherein, during a first interval after the motor (230) stops, the controller (430) controls a phase current of a predetermined frequency to flow through the motor (230) to estimate a position of a rotor of the motor (230), and estimates the position of the rotor of the motor (230) based on the detected output current while the phase current of the predetermined frequency flows through the motor (230). Thereby, the sensorless motor driving apparatus (220) can easily estimate the position of the motor rotor.

    摘要翻译： 这里公开了一种电动机驱动装置（220）和包括该电机驱动装置的家用电器。 电动机驱动装置（220）和家用电器包括逆变器（420），其通过开关动作将直流（DC）功率转换为交流（AC）电力，并将转换的交流电力输出到电动机（230 ），用于检测流过电动机（230）的输出电流的输出电流检测器（E）;控制逆变器（420）的控制器（430），其中，在电动机（230）停止之后的第一间隔期间， 控制器（430）控制预定频率的相电流流过电动机（230）以估计电动机（230）的转子的位置，并且基于电动机（230）的转子的位置估计 检测输出电流，同时预定频率的相电流流过马达（230）。 因此，无传感器电动机驱动装置（220）能够容易地估计电动机转子的位置。

    LAUNDRY MACHINE
    5.
    发明公开
    LAUNDRY MACHINE 审中-公开

    公开(公告)号：EP3819419A1

    公开(公告)日：2021-05-12

    申请号：EP19831129.2

    申请日：2019-07-05

    申请人： LG Electronics Inc.

    发明人： KIM, Junsung ,  KIM, Sungwan ,  LEE, Chungill

    IPC分类号： D06F39/08 ,  D06F37/30

    摘要： The present disclosure relates to a laundry treatment machine. A laundry treatment machine according to an embodiment of the present disclosure including an inverter to convert the DC voltage from the converter into an alternating current (AC) voltage based on a switching operation and to output the converted AC voltage to the drain motor; and a controller to control the drain motor to operate at any one of a first speed, a second speed less than the first speed, and a stop when the washing tub motor is accelerated. Accordingly, according to the operation of the washing tub motor, it is possible to efficiently drive the drain motor.

    DRAINAGE PUMP DRIVING DEVICE AND LAUNDRY PROCESSING APPARATUS COMPRISING SAME
    6.
    发明公开
    DRAINAGE PUMP DRIVING DEVICE AND LAUNDRY PROCESSING APPARATUS COMPRISING SAME 审中-公开

    公开(公告)号：EP3783143A1

    公开(公告)日：2021-02-24

    申请号：EP19787723.6

    申请日：2019-04-19

    申请人： LG Electronics Inc.

    发明人： JE, Jungmoon ,  LEE, Chungill ,  LEE, Kiwook

    IPC分类号： D06F39/08 ,  D06F33/02

    摘要： The present disclosure relates to a drain pump driving apparatus and a laundry treatment machine including the same. A drain pump driving apparatus according to an embodiment of the present disclosure includes a controller configured to drive a motor, during drainage, based on an output current and a direct current (DC) terminal voltage with a first power when a lift is at a first level and to drive the motor with the first power when the lift is at a second level that is greater than the first level, wherein the lift is a difference between a water level of a water introduction part through which water flows into a drain pump and a water level of a water discharge part through which the water is discharged out of the drain pump. Accordingly, water pumping can be performed smoothly even if the lift is changed during the drainage.

    VACUUM CLEANER
    8.
    发明公开
    VACUUM CLEANER 审中-公开

    公开(公告)号：EP3354177A1

    公开(公告)日：2018-08-01

    申请号：EP16848930.0

    申请日：2016-09-21

    申请人： LG Electronics Inc.

    发明人： HAN, Seonghoon ,  SON, Kuyoung ,  LEE, Chungill

    IPC分类号： A47L5/12 ,  A47L9/28

    CPC分类号： A47L9/2842 ,  A47L5/12 ,  A47L9/28 ,  A47L9/2857 ,  A47L9/2884

    摘要： The present invention relates to a vacuum cleaner. The vacuum cleaner of the present invention comprises: a cleaner body having a suction motor for generating suctioning force, and running in operating mode and charging mode; a suctioning part communicating with the cleaner body, for suctioning air and dust; a battery assembly capable of supplying power to the suction motor and having a plurality of battery packs; a controller for controlling the operation of the suction motor; a current regulating unit for regulating the current applied to the suction motor in a state in which the plurality of battery packs are serially connected; a first switching mechanism for serially connecting the plurality of battery packs; and a second switching mechanism for parallelly connecting the plurality of battery packs.

    MOTOR DRIVING DEVICE AND LAUNDRY TREATMENT APPARATUS INCLUDING THE SAME
    10.
    发明公开
    MOTOR DRIVING DEVICE AND LAUNDRY TREATMENT APPARATUS INCLUDING THE SAME 审中-公开
    摩托车维也纳国际大剧院（WÄSCHEBEHANDLUNGSVORRICHTUNGDAMIT）

    公开(公告)号：EP3051691A1

    公开(公告)日：2016-08-03

    申请号：EP16153350.0

    申请日：2016-01-29

    申请人： LG Electronics Inc.

    发明人： LEE, Junho ,  LEE, Chungill ,  JE, Jungmoon

    IPC分类号： H02P27/08

    CPC分类号： H02P27/06 ,  D06F37/304 ,  H02P6/14 ,  H02P6/28 ,  H02P21/18 ,  H02P27/085

    摘要： The present disclosure relates to a motor driving device and a laundry treatment apparatus. The motor driving device (200) may include an inverter (420) to convert DC power into AC power according to a switching operation and to output the converted AC power to a motor (250), an output current detector (E) to detect an output current flowing through the motor (250), and a controller (430) to control the inverter (420) based on the detected output current. The controller (430) changes a carrier frequency, changes a voltage command based on the changed carrier frequency and outputs an inverter switching control signal to the inverter (420) based on the changed carrier frequency and the changed voltage command. Accordingly, noise may be reduced during operation of the motor (250).

    摘要翻译： 本发明涉及电动机驱动装置和衣物处理装置。 电动机驱动装置（200）可以包括逆变器（420），其根据切换操作将直流电力转换为交流电力，并将转换的交流电力输出到电动机（250）;输出电流检测器（E） 流过电动机的输出电流（250），以及基于检测到的输出电流来控制逆变器（420）的控制器（430）。 控制器（430）改变载波频率，基于改变的载波频率改变电压命令，并且基于改变的载波频率和改变的电压命令将逆变器切换控制信号输出到逆变器（420）。 因此，在马达（250）的操作期间噪声可能会降低。