Air conditioner that automatically controls the operation, based on supply voltage or supply frequency

摘要

Invention Patent: B "AIR CONDITIONER THAT AUTOMATICALLY CONTROLS THE OPERATION, BASED ON SUPPLY VOLTAGE OR SUPPLY FREQUENCY" D. An air conditioner includes: a current detection unit, to detect a current value of an alternating current energy supplied from the alternating current energy source; an internal fan motor, to exchange heat from the refrigerant for internal heat; an external fan motor, to exchange the heat of the refrigerant for external heat; a compressor connected to an internal heat exchanger and an external heat exchanger, in which the heat exchange is carried out by the internal fan motor and the external fan motor, respectively, to compress the refrigerant; a refrigerant decompression unit to the internal and external heat exchangers, to decompress the refrigerant; a drive control unit, which receives AC power from the AC power source, to control the drive of the compressor; a voltage detection unit, for detecting a voltage value supplied by the AC power source to the drive control unit; and a microcomputer, which receives the current value detected by the current detection unit and the voltage value detected by the voltage detection unit, to correct a current level control level, based on the voltage value and to control any one or at least two of the drive control unit, the refrigerant decompression unit, and the internal and external fan motors by the current value control level.