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.