| 摘要 |
PROBLEM TO BE SOLVED: To prevent the water from being discharged from a drain port in supplying the water to a water supply tank. SOLUTION: The water supply to the water supply tank 5 for a next ice-making process is performed after a delay time t of 10 seconds from the start of upward oscillation of a water supply unit 4, after an ice-making process is terminated and ice cubes slip off to an ice storage 8. As the water supply unit 4 is oscillated at the delay time t, and a drain port 13 at a height of a water level of the water supply tank 5 is projected from the water level before starting the oscillation, the water is not discharged from the drain port 13 even the water supply is performed. Thus the water usage can be saved and reduced, and as the cooled water remaining in the water supply tank 5 can be effectively utilized after the ice-making process, the cooling efficiency of the next ice-making process can be improved. COPYRIGHT: (C)2009,JPO&INPIT
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