Patent ID: 7434416

Claim:
An air-conditioning system comprising: a refrigeration cycle including an electric compressor, in which a compression mechanism for drawing a refrigerant therein for compression, is integrated with an electric motor for driving the compression mechanism, and a motor drive circuit for driving the motor is cooled using an intake refrigerant drawn into the compression mechanism; and a refrigeration cycle control unit for providing operational control to the refrigeration cycle, wherein the refrigerant cycle further includes an evaporator for evaporating the refrigerant by performing heat exchange with air within an air conditioning unit, and a condenser for cooling and condensing the refrigerant by performing heat exchange with exterior air; when a temperature of the motor drive circuit is in a first temperature range higher than a predetermined temperature, the refrigerant cycle control unit increases an amount of cooling air flowing to the condenser; and when the temperature of the motor drive circuit is in a second temperature range higher than the first temperature range, the refrigerant cycle control unit decreases an amount of conditioning air flowing to the evaporator.