Patent ID: 7225628

Claim:
An ice making machine comprising a water tank for storing an amount of ice making water, an upright ice making plate arranged above the water tank, and an water sprinkler located immediately above the ice making plate to spray ice making water supplied from the water tank to the ice making plate so that the ice making water falls along the ice making plate, in which the ice making water sprayed to the ice making plate during operation at an ice making mode is frozen and formed into ice cubes in the course of falling along the ice making plate, characterized in that the ice making machine includes drainage means for draining the ice making water from the water tank, water supply means for supplying washing water into the water tank, and control means for activating the drainage means after finish of operation at a defrost mode and for activating the water supply means after the ice making water has been drained from the water tank, wherein the washing water supplied into the water tank under control of the control means is sprayed by the sprinkler for washing the ice making plate.