PURIFYING FILTER OF COMPLEX REFRIGERATOR, FROSTING PREVENTING DEVICE OF WATER TANK AND CONTROL METHOD THEREOF

摘要

PURPOSE: A frosting preventing device is provided to prevent water from leaking caused by the repeated freezing/thawing operation of a purifying filter. CONSTITUTION: The freezing preventing device is formed by:a purifying filter(10) filtrating the water transmitted from outside; a water feed valve controlling the transmission of the filtrated water to an ice-making machine and a dispenser; a water tak(20) temporarily storing the water fed to the dispense system through the water feed valve; a freezing preventing pipes for preventing water inside of the purifying filter and the water tank from freezing by the action of the freezing preventing piece.