公开(公告)号：US11253134B2

公开(公告)日：2022-02-22

申请号：US16698273

申请日：2019-11-27

Applicant: LG Electronics Inc.

Inventor： Sangheon Yoon ,  Changyoon Jung

IPC: A47L15/42 ,  A47L15/00

Abstract: A dishwasher includes: a dishwasher body including a tub that defines a washing space and a sump disposed vertically below the tub and configured to accommodate washing water; a heat pump including a compressor, a condenser, an expansion apparatus, and an evaporator; a drain storage unit connected to a drain pipe of the sump and configured to receive washing water discharged from the sump; a drain pipe open-close valve that opens and closes the drain pipe; and a controller that controls the heat pump and the drain pipe open-close valve. The evaporator is configured to exchange heat with the drain storage unit, and the controller controls the drain pipe open-close valve to open the drain pipe to move washing water of the sump to the drain storage unit when the sump is drained.

公开(公告)号：US11241140B2

公开(公告)日：2022-02-08

申请号：US16696589

申请日：2019-11-26

Applicant: LG Electronics Inc.

Inventor： Changyoon Jung ,  Sangheon Yoon

IPC: A47L15/22 ,  A47L15/42 ,  A47L15/48

Abstract: A dish washer includes a washing tank having an accommodation space for storing dishes therein; an injection arm disposed inside the washing tank, and provided with a plurality of nozzles to selectively inject washing water and air to the dishes according to a washing operation and a drying operation; a duct unit that defines a passage of the air to be supplied to the injection arm; a suction fan provided inside the duct unit to suction the air and supply the air to the injection arm; and an air heating element that heats the air to be supplied to the injection arm, wherein the injection arm includes a partition wall that partitions a washing water passage and an air passage therein.

公开(公告)号：US11181311B2

公开(公告)日：2021-11-23

申请号：US16695805

申请日：2019-11-26

Applicant: LG ELECTRONICS INC.

Inventor： Changyoon Jung ,  Yunsu Cho

IPC: F25D21/00 ,  F25D11/02

Abstract: The present disclosure provides a method of controlling a refrigerator that includes a compressor, an evaporator to supply cold air to a storage chamber, a defrosting heater to defrost the evaporator, and a controller to control the defrosting heater. The method includes: operating a cooling cycle for cooling the storage chamber; determining whether a defrosting start condition is satisfied during operation of the cooling cycle; determining whether a defrosting delay condition is satisfied when the defrosting start condition is satisfied; and starting a defrosting operation when the defrosting delay condition is not satisfied, and starting the defrosting operation at a delayed defrosting start time when the defrosting delay condition is satisfied.