公开(公告)号：US20190063822A1

公开(公告)日：2019-02-28

申请号：US16046594

申请日：2018-07-26

Applicant: LG ELECTRONICS INC.

Inventor： Heekwon RYU ,  Sunam CHAE

IPC: F25D29/00 ,  F25D11/02 ,  F25D23/00

Abstract: A refrigerator includes a control module which controls a first compressor, a second compressor, a first fan, a second fan, and a third fan, in which the control module performs a high-temperature initial simultaneous operation when the outside air temperature is at the outside air set temperature or more, performs a high-temperature initial alternation operation when the freezing compartment temperature is at the freezing compartment set temperature or less and the refrigerating compartment temperature is at the refrigerating compartment set temperature or less during the high-temperature initial simultaneous operation. The control module drives the first compressor and the second compressor together during the high-temperature initial simultaneous operation, and alternately drives the first compressor and the second compressor during the high-temperature initial alternation operation.

公开(公告)号：US20220090834A1

公开(公告)日：2022-03-24

申请号：US17474279

申请日：2021-09-14

Applicant: LG ELECTRONICS INC.

Inventor： Hyunwoo DO ,  Heekwon RYU ,  Gyudong LEE ,  Hwanyoung KIM

IPC: F25B49/02 ,  F25B31/00 ,  F25D29/00

Abstract: A refrigerator includes a temperature sensor provided in a storage space of the refrigerator to detect a temperature; an inverter compressor constituting a freezing cycle for cooling the storage space, the number of rotations being variable by frequency control; and a controller for controlling the operation of the inverter compressor. The controller may variably control the operating frequency of the inverter compressor according to the load of the storage space in order to maintain the storage space at a set temperature, and compare the operating frequency with a stop frequency when a stop signal is input, when the operating frequency is lower than the stop frequency, raise the frequency of the inverter compressor to the stop frequency, and then stop the inverter compressor.

公开(公告)号：US20170191727A1

公开(公告)日：2017-07-06

申请号：US15398769

申请日：2017-01-05

Applicant: LG ELECTRONICS INC.

Inventor： Sunam CHAE ,  Kyungseok KIM ,  Soyoon KIM ,  Heekwon RYU

IPC: F25D11/02 ,  F25D29/00

CPC classification number: F25D11/022 ,  F25B5/02 ,  F25B5/04 ,  F25B40/00 ,  F25B41/04 ,  F25B41/067 ,  F25B2341/0662 ,  F25B2400/0409 ,  F25B2400/0411 ,  F25B2400/052 ,  F25B2400/054 ,  F25D29/00 ,  F25D2600/04 ,  F25D2700/12

Abstract: A refrigerator that includes a compressor configured to compress a refrigerant; a condenser configured to condense the refrigerant; a first evaporator that is configured to evaporate the refrigerant, the evaporated refrigerant being configured to cool a refrigerating compartment; a second evaporator that is configured to evaporate the refrigerant, the evaporated refrigerant being configured to cool a freezing compartment; a first heat exchanger; a refrigerating-compartment expansion device that is coupled to the first heat exchanger and that is configured to expand the refrigerant and provide the expanded refrigerant to the first heat exchanger; a second heat exchanger coupled to the second evaporator; and a freezing-compartment expansion device that is coupled to the second heat exchanger and that is configured to expand the refrigerant and provide the expanded refrigerant to the second heat exchanger, wherein the first heat exchanger is configured to cool the second heat exchanger is disclosed.