公开(公告)号：US20240049934A1

公开(公告)日：2024-02-15

申请号：US18269426

申请日：2021-12-24

Applicant: LG ELECTRONICS INC.

Inventor： Han Su JUNG ,  Seok Hee CHO ,  Soong Keun LEE

IPC: A47L9/28

CPC classification number: A47L9/2831 ,  A47L9/2842 ,  A47L9/2884 ,  A47L9/2889 ,  A47L9/2857

Abstract: Provided is a vacuum cleaner including a motor configured to generate a suction force, an inverter configured to convert a DC power of a DC terminal capacitor into an AC power to output to the motor, and a controller configured to apply a control signal of the inverter to drive the motor, in which the controller is further configured to detect an event while the motor is driving, and generate the control signal to generate operation noise of the motor corresponding to the detected event. According to example embodiments of the present specification, it is possible to provide information to a user without a separate element by controlling the driving pattern of the motor in the vacuum cleaner.

公开(公告)号：US20220195656A1

公开(公告)日：2022-06-23

申请号：US17544271

申请日：2021-12-07

Applicant: LG ELECTRONICS INC.

Inventor： Kwang Sik KIM ,  Han Su JUNG ,  Ha Min SONG

IPC: D06F37/30 ,  D06F34/08 ,  D06F34/10 ,  H02P27/06

Abstract: Disclosed is a clothes treating apparatus and a control method thereof. Specifically, the clothes treating apparatus may include an inverter configured to convert a direct current (DC) input into an alternating current (AC) output and provide the AC output to the motor, and a controller configured to control the inverter in relation to driving of the motor.

公开(公告)号：US20220195655A1

公开(公告)日：2022-06-23

申请号：US17544238

申请日：2021-12-07

Applicant: LG ELECTRONICS INC.

Inventor： Ki Wook LEE ,  Han Su JUNG ,  Kwang Sik KIM

IPC: D06F37/30 ,  D06F34/08 ,  H02P27/06 ,  H02P27/04

Abstract: Disclosed are a motor control apparatus and a motor control method. Specifically, the motor control apparatus includes an inverter part configured to convert a direct current (DC) input into an alternating current (AC) output and provide the AC output to the motor, and a controller configured to control the inverter part in relation to driving of the motor, and the controller controls the inverter part to apply a first pattern voltage having the same phase to the motor and then apply a second pattern voltage having different phases to the motor.

公开(公告)号：US20220263436A1

公开(公告)日：2022-08-18

申请号：US17671785

申请日：2022-02-15

Applicant: LG ELECTRONICS INC.

Inventor： Han Su JUNG ,  Seok Hee Cho ,  Soong Keun Lee

IPC: H02P5/50 ,  D06F37/30 ,  D06F34/08

Abstract: Disclosed is a motor control apparatus capable of checking whether there is an abnormality in connections of a plurality of motors, and switching connection schemes between an inverter and the motors or driving the motor in an electronic apparatus including one inverter configured to control a driving operation of the plurality of motors. For example, the motor control apparatus includes an inverter configured to convert DC power into AC power and provide the AC power to one of a plurality of motors, a switch configured to switch connection schemes between the inverter and the plurality of motors, and a controller, and the controller may control the inverter to output an input signal of a predetermined pattern in response to the switching of the connection schemes by the switch, and generate a control signal for controlling the inverter or the switch on the basis of a response signal corresponding to the input signal. Other example embodiments may be provided.