COOLING STORAGE AND METHOD FOR CONTROLLING COMPRESSOR FOR THE COOLING STORAGE

摘要

A deviation calculation means (42) calculates the deviation of the temperature in a storage detected by a temperature sensor (35) from a target temperature given from a target temperature setting means (41) every predetermined time, a deviation integration means (46) integrates the deviation, and the number of revolutions of an inverter motor for driving a compressor is increased on conditions that the integrated value exceeds a predetermined reference value. Even if a door is opened temporarily and the temperature in the storage is raised temporarily by outer air flowing into the storage chamber, the integrated value of temperature deviation is not varied suddenly and control is stabilized because the number of revolutions of the compressor does not react too sensitively to quickly increase. The cooling storage can be prevented from responding to sudden change of temperature in the refrigerator with unnecessary sensitivity and it can be operated with higher efficiency.