Patent ID: 6216478
Filing Date: 2001-04-17
Classification: F25B,F25D,Y02B

Abstract:
An operation speed change system for an inverter refrigerator, comprising:a circumferential temperature sensing means for sensing an exterior temperature in the vicinity of the refrigerator;a temperature comparing means for determining whether the temperature sensed by the circumferential temperature sensing means is higher than a previously set temperature;a door opening sensing means for sensing the door opening of the refrigerator;a time lapse determining means for measuring the predetermined time elapsed from a referential point of time when the door opening is sensed by the door opening sensing means;a frequency setting means for setting a frequency in accordance with outputs from the door opening sensing means, the temperature comparing means and the time lapse determining means; anda compressor driving means for driving a motor at the frequency determined by the frequency setting means and outputting a signal to the time lapse determining means for the referential point of time.