| 摘要 |
<p>Disclosed is an ice maker (10) that is disposed in the ice making chamber (4) of a refrigerator/freezer (1). The ice maker comprises an ice tray (20) that makes ice by means of cold air that is sucked into the ice making chamber, a thermistor (25) that measures the temperature within the ice tray, a heater (31) that heats the ice tray from below, and a control unit (50) that controls the operation of a freezing cycle and the passage of electric current to the heater using the temperature measured by the thermistor as a criteria. The control unit performs a freezing preparation step in which, after water has been supplied to the ice tray, a "preheating" electric current is passed to the heater until the temperature measured by the thermistor falls below freezing; an ice melting step in which, after the temperature measured by the thermistor has fallen below freezing, a "rapid heating" electric current is passed to the heater for a given period of time only; and a freezing progression step in which a "normal heating" electric current is passed to the heater until the temperature measured by the thermistor falls to a prescribed temperature.</p> |
