| 摘要 |
PROBLEM TO BE SOLVED: To improve the reliability by controlling a refrigerator to suppress the temperature increase of a worm head before stopping a sterling freezer. SOLUTION: When one radiation fan device fails, the refrigerator 1 firstly reports the failure, increases air capacity of the other radiation fan device, then increases the reference temperature in the refrigerator, and further decreases the driving electric power of the sterling freezer 10. Still, when temperature T of the worm head 11 exceeds the reference temperature TR2, the sterling freezer 10 is stopped. Therefore, when the radiation fan device fails, the reliability of the refrigerator 1 can be improved comparing with the case where the sterling freezer 10 is stopped instantly. COPYRIGHT: (C)2006,JPO&NCIPI
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