Patent ID: 9670612
Date: 2017-06-06
CPC Classifications: D06F

Claim:
1. A method for controlling a laundry treatment apparatus, the laundry treatment apparatus comprising a receiver that receives an object to be dried, a circulation flow path that draws air out of the receiver and resupplies the air into the receiver, an evaporator that evaporates a refrigerant via heat exchange with the air introduced to the circulation flow path, a condenser that condenses the refrigerant via heat exchange with the air having passed through the evaporator, and a compressor that compresses the refrigerant discharged from the evaporator and supplies the compressed refrigerant to the condenser, and a controller that controls a flow rate of the compressed refrigerant via adjustment of a frequency of alternating current supplied to the compressor, the method comprising: supplying alternating current to the compressor at a predetermined first frequency; measuring a first time a temperature of the refrigerant discharged from the compressor; measuring a second time a temperature of the refrigerant discharged from the compressor when a predetermined first reference time has passed after completion of the measuring the first time the temperature of the refrigerant discharged from the compressor; and controlling the first frequency of the alternating current based on a difference between the temperature measured the first time and the temperature measured the second.