| 摘要 |
PROBLEM TO BE SOLVED: To prevent an excessive partial temperature rise of a cooler when defrosting the cooler after heating with a defrosting heater. SOLUTION: This cooling storage includes an electrification control unit 45 for alternately performing electrification to the defrosting heater 28 and its stop from the start of defrosting operation and reducing electrification time to the defrosting heater 28 in accordance with temperature rise of the cooler 25 detected by a defrosting thermistor 42. The electrification control unit 45 includes: a data storage part 46 storing a table X as data in which the electrification time ta to the defrosting heater 28 and the stop time tb are set with respect to each temperature zone I-V divided into a plurality of sections; a detection temperature fetching part 47 for fetching the detection temperature T of the defrosting thermistor 42 at predetermined timing; and an electrification time output unit 48 for reading and outputting the corresponding electrification time ta and the stop time tb from the table X along with fetching of the detection temperature T. COPYRIGHT: (C)2010,JPO&INPIT
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