公开(公告)号：US20210277562A1

公开(公告)日：2021-09-09

申请号：US17258121

申请日：2019-07-05

Applicant: LG ELECTRONICS INC.

Inventor： Junho PARK ,  Kiwook LEE ,  Jongseok JUNG

IPC: D06F33/42 ,  H02P27/08 ,  D06F39/08 ,  D06F37/30 ,  D06F33/47 ,  D06F34/10 ,  D06F23/04 ,  F04D13/06 ,  F04D15/02 ,  F04D15/00 ,  E03C1/30

Abstract: 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 and a laundry treatment machine including the same include: an inverter converting a direct current (DC) voltage from a converter into an alternating current (AC) voltage based on a switching operation and to output the converted AC voltage to a drain motor; and a controller to control the motor to, when a drain channel in a drain pump is clogged, be temporarily stopped in a period during which a speed of the motor increases and then to repeatedly rotate and stop in a first direction the same as a start-up direction, and to repeatedly rotate and stop in a second direction opposite to the first direction when the drain channel is clogged even after the motor repeatedly rotates and stops in the first direction. Accordingly, when impurities are introduced into the drain pump, the impurities can be removed in a simple manner.

公开(公告)号：US20170269800A1

公开(公告)日：2017-09-21

申请号：US15529391

申请日：2015-02-27

Applicant: LG ELECTRONICS INC.

Inventor： Junho PARK ,  Bokheun LEE ,  Jiseok JUNG ,  Seungjun LEE

IPC: G06F3/0482 ,  H04W4/14 ,  H04L29/06 ,  G06F3/0488 ,  H04L12/58

Abstract: The present specification discloses a mobile terminal and a control method thereof. According to an embodiment of the present specification, the mobile terminal comprises: a display unit configured to output a first region which displays messages and a second region which displays information on a contact corresponding to the messages; and a control unit for outputting, to the display unit, a controller user interface (UI) for processing the messages to be displayed in the first region in association with the information on the contact displayed in the second region when a preset touch input is received in the second region. Here, the controller UI comprises: a menu region which displays scrap information associated with the information on the contact displayed in the second region among the messages displayed in the first region; and an input region which displays a message corresponding to the scrap information selected in the menu region.

公开(公告)号：US20210285143A1

公开(公告)日：2021-09-16

申请号：US17258043

申请日：2019-07-05

Applicant: LG ELECTRONICS INC.

Inventor： Changyoung CHEON ,  Jihoon KIM ,  Junho PARK

IPC: D06F37/30 ,  D06F34/10 ,  D06F39/08

Abstract: The present disclosure relates to a laundry treatment machine. A laundry treatment machine according to an embodiment of the present disclosure includes: an inverter converting a direct current (DC) voltage from a converter into an alternating current (AC) voltage based on a switching operation and outputting the converted AC voltage to a circulation pump motor; and a controller to control a speed of the circulation pump motor to be increased before a time point at which a speed of a washing tub motor increases. Accordingly, the washing tub motor and the circulation pump motor can be operated in synchronization with each other. As a result, it is possible to improve washing power based on circulation pumping during washing.

公开(公告)号：US20210189623A1

公开(公告)日：2021-06-24

申请号：US17258073

申请日：2019-07-05

Applicant: LG ELECTRONICS INC.

Inventor： Junho PARK ,  Junsung KIM ,  Kiwook LEE

IPC: D06F33/47 ,  D06F39/08 ,  F04D15/00 ,  F04D15/02 ,  F04D25/06

Abstract: The present disclosure relates to a laundry treatment machine and a method for controlling the same. A pump motor may operate according to the steps of starting up the pump motor when operating or stopping the pump motor. Upon restarting, the pump motor may be controlled to start up after being on standby until the rotor stops, and therefore the pump may run normally even in case in which the pump repeatedly stops and runs, and the drainage performance may be improved and wash water may be drained by the operation of the pump regardless of the lift level.