| 摘要 |
PROBLEM TO BE SOLVED: To provide a refrigerator capable of maintaining reliability and controlling the temperature in the refrigerator into a narrow temperature range.SOLUTION: A refrigerator comprises: a cold air passage in which air cooled by a cooler circulates; a cooling room connected to the cold air passage; an on-off valve 56 opening and closing the cold air passage between the cooling room and cooler; air blowers 53, 57 arranged in the cold air passage and sending air to the cooling room; and temperature sensors 81, 82 detecting the temperature in the cooling room. The refrigerator is configured: to open the on-off valve when the temperature sensors detect a temperature equal to or higher than T1, and also close the on-off valve when the temperature sensors detect a temperature lower than the T1 and equal to or lower than T2; and to measure the time from the point of time when the temperature sensor detects the T1 to the point of time when the T2 is detected and then lower the rotating speed of the air blowers when the measured time is shorter than a predetermined time.SELECTED DRAWING: Figure 7 |
