APPARATUS WITH REFRIGERATING CYCLE

摘要

Disclosed is a refrigeration cycle apparatus. Embodiments of the present invention allow a refrigerant switching valve to be moved to a certain position by a simple circuit configuration when power supply is cut off. The embodiments of the present invention allow oil to be collected even in case of the cutoff of input power supply such as sudden blackout in operation. The embodiments of the present invention allow the refrigerant switching valve to be switched with a closed condition even in case of the cutoff of input power supply such as the sudden blackout in the operation of the refrigeration cycle apparatus having 2stage-2comp when the refrigerant switching valve is open, so that a pressure difference between two compressors is reduced, and damage to the compressors is prevented. [Reference numerals] (16) Refrigerant switching valve; (210) Power unit; (211) DC-link capacitor; (220) Valve driver; (230) Microcomputer; (AA) Detection signal; (M) Driving motor