REFRIGERATOR

• Main Authors: FUNAYAMA ATSUKO, TAKASAKI TOSHIE
• Format: Patent
• Language: English
• Published: 09.02.2012
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; PRODUCING, WORKING OR HANDLING ICE; REFRIGERATION OR COOLING; WEAPONS

PROBLEM TO BE SOLVED: To provide a refrigerator preventing erroneous determination and reducing useless waiting time for separating ice.SOLUTION: The refrigerator has an ice maker compartment having an ice making tray, a non-contact infrared sensor arranged in the upper part of the ice maker compartment, a cold air temperature detector detecting the temperature of a cold air blowing out opening of the ice maker compartment, a control unit detecting a water surface temperature of the ice making tray from a difference between the temperature of the infrared sensor itself and the temperature detected by the infrared sensor and is characterized in that the control device detects the inflection point of a water surface temperature change of the ice making tray, detects lapsed time of the temperature or the predetermined temperature of the cold air blowing out opening, and determines that the ice making is completed after detecting that the temperature is lowered again.