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Patent Agency Ranking
公开(公告)号：US20170047876A1
公开(公告)日：2017-02-16
申请号：US15232862
申请日：2016-08-10
Inventor： Soongkeun LEE , Chungill LEE , Seonwook PARK , Sungwoo BAE , Jaejung YUN , Jeongtae KIM , Younggeun LEE
Abstract: A motor driving apparatus included in a home appliance may include an inverter 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, an output current detector to detect an output current flowing through the motor, a controller to control the inverter, wherein, during a first interval after the motor stops, the controller controls a phase current of a predetermined frequency to flow through the motor to estimate a position of a rotor of the motor, and estimates the position of the rotor of the motor based on the detected output current while the phase current of the predetermined frequency flows through the motor. Thereby, the sensorless motor driving apparatus can easily estimate the position of the motor rotor.
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公开(公告)号：US20180235422A1
公开(公告)日：2018-08-23
申请号：US15753137
申请日：2016-08-12
Applicant: LG Electronics Inc.
Inventor： Soongkeun LEE , Seongwoo KIM , Chungill LEE
CPC classification number: A47L9/2842 , A47L9/26 , A47L9/28 , A47L9/2857 , A47L9/2878 , A47L9/2884 , H02J9/02 , H02P4/00
Abstract: Provided are a vacuum cleaner that uses both alternating current (AC) power and direct current (DC) power without a separate switch module, and a control method thereof. The cleaner includes a suction nozzle sucking a cleaning target, a suction connection part connected to the suction nozzle and allowing the sucked cleaning target to pass therethrough, and a main body separated from the suction nozzle and having a dust box collecting the cleaning target, wherein the main body includes a suction force generating unit installed in the main body to generate a suction force and a power supply unit detachably provided in the main body to apply a voltage to the suction force generating unit, wherein the power supply unit supplies power to the suction force generating unit using any one of a DC voltage and an AC voltage.
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公开(公告)号：US20160359372A1
公开(公告)日：2016-12-08
申请号：US15171284
申请日：2016-06-02
Applicant: LG ELECTRONICS INC.
Inventor： Soongkeun LEE , Hoyong Jang , Chungill Lee
CPC classification number: H02J50/12 , G09G5/003 , H02J7/025 , H02J50/15 , H02J50/80 , H02P27/08 , H04B5/0031 , H04B5/0037 , H04B5/0093 , H04W4/80
Abstract: A home appliance is disclosed, including a motor, a drive unit configured to drive the motor, a first circuit unit including a main controller configured to control the drive unit, a display unit, and a second circuit unit including a display controller configured to control the display unit. The first circuit unit transmits wireless power to the second circuit unit, using a first frequency, and the second circuit unit transmits data to the first circuit unit, using a second frequency different from the first frequency. Thereby, wireless power transmission and bidirectional communication are performed between the first and second circuit units.
Abstract translation: 公开了一种家用电器，包括电动机，被配置为驱动电动机的驱动单元，包括被配置为控制驱动单元的主控制器的第一电路单元，显示单元和包括显示控制器的第二电路单元， 显示单元。 第一电路单元使用第一频率将无线电力发送到第二电路单元，并且第二电路单元使用不同于第一频率的第二频率向第一电路单元发送数据。 由此，在第一和第二电路单元之间执行无线电力传输和双向通信。
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公开(公告)号：US20180054089A1
公开(公告)日：2018-02-22
申请号：US15800900
申请日：2017-11-01
Inventor： Soongkeun LEE , Chungill LEE , Seonwook PARK , Sungwoo BAE , Jaejung YUN , Jeongtae KIM , Younggeun LEE
CPC classification number: H02J50/10 , G09G5/003 , G09G5/006 , G09G5/36 , G09G2330/02 , G09G2370/16 , H02J50/12 , H02J50/80 , H02P21/24 , H04W4/80
Abstract: A home appliance is disclosed, including a first circuit unit including a converter configured to convert an Alternating Current (AC) power into a Direct Current (DC) power, a first coil, a first modulator/demodulator configured to wirelessly transmit the DC power generated by the converter using the first coil, and a first controller configured to control the first modulator/demodulator, and a second circuit including a second coil configured to receive a wireless power transmitted by the first circuit unit, a second modulator/demodulator configured to convert the wireless power received from the second coil, a rectifier configured to rectify an AC power generated by the second modulator/demodulator, and a second controller configured to control operation of the second modulator/demodulator, wherein the first modulator/demodulator and the second modulator/demodulator perform bidirectional time-division data communication.
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公开(公告)号：US20170042400A1
公开(公告)日：2017-02-16
申请号：US15235287
申请日：2016-08-12
Applicant: LG ELECTRONICS INC.
Inventor： Soongkeun LEE , Chungill LEE , Seongwoo KIM
CPC classification number: A47L9/2842 , A47L5/36 , A47L9/102 , A47L9/1409 , A47L9/26 , A47L9/2878 , A47L9/2884
Abstract: A vacuum cleaner may include a cleaner body having a suction motor and a suctioning portion configured to be in communication with the cleaner body and to suction air and dust. One of a battery assembly having a battery or a cord reel assembly having a power cord may be installed in the cleaner body. The vacuum cleaner may also include a controller to control the suction motor by modifying a pulse width modulation (PWM) duty cycle of an inverter providing power to the suction motor based on whether the battery assembly or the cord reel assembly is installed in the cleaner body.
Abstract translation: 真空吸尘器可以包括具有抽吸马达和抽吸部分的吸尘器主体，该抽吸部分构造成与吸尘器主体连通并吸入空气和灰尘。 具有电池或具有电源线的电缆卷盘组件的电池组件中的一个可以安装在吸尘器主体中。 真空吸尘器还可以包括控制器，用于通过根据电池组件或电线盘组件是否安装在吸尘器主体中，通过修改向抽吸马达提供动力的逆变器的脉宽调制（PWM）占空比来控制吸引马达 。
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