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.