Domestic refrigeration appliance with a refrigerant circuit and method for operating a household refrigerator with a refrigerant circuit

摘要

The invention relates to a household refrigerating appliance (1) and a method for operating a household refrigerating appliance (1). The household refrigerating appliance (1) comprises a thermally insulated body (10) with an inner container (2) defining a refrigerated interior (3) provided for storing food, a refrigerant circuit (20) provided with a refrigerant for cooling the coolable interior (3) and a compressor (21), an electric drive (40) with an electric motor (36), and an electronic control device (8). The compressor (21) comprises a compression chamber (31) with an inlet (32) and with an outlet (33), a piston (34) displaceably mounted inside the compression chamber (31), a crankshaft (35), and the electric motor ( 36) of the electric drive (40). The electric motor (36) comprises a stator (37) and a rotor (38) rotatably mounted with respect to the stator (37) and coupled to the piston (34) via the crankshaft (35). The household refrigerating appliance (1), in particular its electronic control device (8) is set up to operate the electric motor (36) during cooling phases of the household refrigerating appliance (1) at a nominal speed of at least 800 revolutions per minute, in order to be able to control the crankshaft (35). the piston (34) between a top dead center at which a volume (39) enclosed by the compression chamber (31) and the piston (34) for compressing the refrigerant is minimal, and a bottom dead center at which the volume (39) is maximum is to move back and forth. Between the cooling phases, the rotor (38) of the electric motor (36) stands still during stationary phases of the compressor (31).