公开(公告)号：US20220034020A1

公开(公告)日：2022-02-03

申请号：US17414170

申请日：2019-11-15

Applicant: LG Electronics Inc.

Inventor： Hyemin KIM ,  Sooyoung OH ,  Kyosoon CHAE ,  Jinho KIM ,  Heeyeon KIM ,  Beomjun KIM ,  Seungwoo PARK

IPC: D06F39/02 ,  D06F23/02

Abstract: A washing machine includes a tub containing water, a drum rotatably provided in the tub to accommodate laundry, and a detergent mixing device configured to mix additives supplied into the tub. The detergent mixing device includes a pair of additive cartridges containing a liquid additive and a peristaltic pump configured to selectively supply the additive discharged from the pair of additive cartridges to the tub. The peristaltic pump includes a first path switching motor, a first tub, a second tube, a first rotor and a second rotor rotated by the flow path switching motor, a first rotary bearing permitting a rotation of the first rotor in a first direction and restricting a rotation of the first rotor in a second direction, and a second rotary bearing permitting a rotation of the second rotor in the second direction and restricting a rotation of the second rotor in the first direction.

公开(公告)号：US20220259786A1

公开(公告)日：2022-08-18

申请号：US17624704

申请日：2020-07-03

Applicant: LG Electronics Inc.

Inventor： Dongkil CHOI ,  Sunjung KIM ,  Hyemin KIM

IPC: D06F33/40 ,  D06F33/34 ,  D06F39/04

Abstract: Disclosed is a method of controlling a washing machine configured such that a drum having on a front surface thereof an inlet through which laundry is put is rotatably provided in a tub containing water. The control method includes (a) a step of supplying water to submerge at least a portion of the drum in the tub; (b) a step of performing at least once an operation in which the water contained in the tub is heated by operating a heater and the drum is rotated at a first set speed; (c) a step of draining the tub; (d) a step of supplying water to submerge at least a portion of the drum in the tub; and (e) a step of performing at least once an operation in which the water contained in the tub is heated by operating the heater and the drum is rotated. The step (e) includes a step of rotating at least once the drum at a second set speed which is lower than the first set speed; and a step of repeating a first drum cleaning operation in which the drum is rotated at least once at a third set speed lower than the second set speed, and a second drum cleaning operation in which the drum is rotated at least once at a fourth set speed lower than the third set speed.

公开(公告)号：US20220010474A1

公开(公告)日：2022-01-13

申请号：US17294297

申请日：2019-11-15

Applicant: LG Electronics Inc.

Inventor： Hyundong KIM ,  Sooyoung OH ,  Kyosoon CHAE ,  Jinho KIM ,  Heeyeon KIM ,  Hyemin KIM ,  Seungwoo PARK

IPC: D06F39/02 ,  D06F23/02 ,  D06F39/12 ,  D06F34/14

Abstract: A washing machine includes a cabinet, a tub, a drum, a drawer disposed within the cabinet to hold detergent, a drawer housing configured to insert into and withdraw from the cabinet, a water supply guide flow channel for supplying water passed through the drawer into the tub, a top cover housing covering an open top of the cabinet and defining a receiving space above the cabinet, a detergent mixer disposed in the receiving space, and a discharge guiding mechanism. The detergent mixer includes additive cartridges that accommodate liquid additives, additive pumps corresponding to the additive cartridges, and a flow channel box including pump intake paths that guide the additives from the additive cartridges to the additive pumps and pump discharge paths that guide the additives discharged from the additive pumps. The discharge guiding mechanism guides the additives discharged from the pump discharge paths to the water supply guide flow channel.