Sealed compressor and vapor compression type refrigeration cycle apparatus equipped with the hermetic compressor

摘要

The hermetic type compressor has a sealed container for storing lubricating oil at the bottom, an electric motor having a stator and a rotor, a drive shaft attached to the rotor, a compression mechanism for compressing the refrigerant by rotation of the drive shaft, A cylindrical side wall partitioning an upper space of the electric motor into an outer space and an inner space so as to surround the rotary pressure boosting mechanism; a sealed refrigerant from the inner space by hermetically closing the refrigerant The refrigerant gas discharged from the compression mechanism into the hermetic container moves from the lower space of the electric motor to the upper end of the rotor through the rotor air hole of the rotor After flowing into the rotary pressurizing mechanism and being pressurized, it flows into the inner space, pressurizes the space, and is discharged to the outside from the discharge pipe while suppressing inflow of the refrigerant gas from the outer space to the inner space.