| 摘要 |
PROBLEM TO BE SOLVED: To provide information for a user by a display device of a refrigerator, an in-house terminal and an out-of-house terminal using the communication function by determining a heat energy loss caused by opening-closing of a door or its approximate value by solving the problem of being unable to display determining information by the heat energy loss having direct influence on damage of food and an electric charge since information on opening-closing of the door is conventionally an opening-closing frequency and opening time. SOLUTION: This refrigerator has the function for detecting opening-closing of the door, opening time of the door, a difference between storage inside-outside temperatures and an opening degree of the door and a means for easily arithmetically operating the approximate value of the heat energy loss caused by opening-closing of the door by a factor of the door. COPYRIGHT: (C)2004,JPO
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