| 摘要 |
Refrigerator (50) includes a storage chamber partitioned by a heat insulation wall and a heat insulation door, for storing a storage object, storage-volume estimating unit (23) for estimating a storage volume in the storage chamber, and memory unit (64) for memorizing a result of estimation by storage-volume estimating unit (23). Further, refrigerator (50) includes arithmetic control unit (22) for calculating a storage change volume based on a result of estimation of the storage volume up to a last time memorized in memory unit (64) and a result of estimation by the storage-volume estimating unit, and for controlling an output operation of an electrofunctional part. The arithmetic control unit compares a predetermined threshold value with the storage change volume, and decides that a storage volume changed when the storage change volume exceeds the threshold value, and controls an output operation of the electrofunctional part. |
