REFRIGERATING CYCLE DEVICE

PROBLEM TO BE SOLVED: To provide an inexpensive refrigerating cycle device capable of estimating compressor power consumption without having a compressor current detection means, and capable of estimating a discharge pressure with high accuracy.SOLUTION: As a compressor power consumption estimation means for estimating power consumed by a compressor, a refrigerating cycle device includes a power supply current detection means for detecting a current value of a power supply supplied to the refrigerating cycle device, a zero cross detection means for detecting a zero cross in which AC voltage of the power supply crosses 0V, and a power supply voltage estimation means for estimating the voltage of the power supply with the usage of the period of the zero cross. The device further includes a discharge pressure estimation means for estimating a pressure of a refrigerant discharged from the compressor using the evaporator temperature, the outside air temperature, the speed of rotation of the compressor and the compressor power consumption, and the compressor or the expansion valve is controlled and operated based on the discharge pressure estimated by the discharge pressure estimation means.