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1. (WO2017032630) DOMESTIC REFRIGERATION APPLIANCE WITH A COOLANT CIRCUIT, AND METHOD FOR OPERATING A DOMESTIC REFRIGERATION APPLIANCE WITH A COOLANT CIRCUIT

Pub. No.:    WO/2017/032630    International Application No.:    PCT/EP2016/069344
Publication Date: Fri Mar 03 00:59:59 CET 2017 International Filing Date: Tue Aug 16 01:59:59 CEST 2016
IPC: F25B 49/02
F25B 31/02
H02P 6/18
H02P 21/18
Applicants: BSH HAUSGERÄTE GMBH
Inventors: PAULDURO, Achim
BECKMANN, Tommy
SPIEGEL, Christoph
KLEIN, Moritz
Title: DOMESTIC REFRIGERATION APPLIANCE WITH A COOLANT CIRCUIT, AND METHOD FOR OPERATING A DOMESTIC REFRIGERATION APPLIANCE WITH A COOLANT CIRCUIT
Abstract:
The invention relates to a domestic refrigeration appliance (1) and to a method for operating a domestic refrigeration appliance (1). The domestic refrigeration appliance (1) comprises a heat-insulated basic body (10) with a coolable inner container (2), which bounds a coolable interior (3) provided for storing foods, also comprises a refrigerant circuit (20) which has a coolant and a compressor (21) and is provided for cooling the coolable interior (3), and further comprises an electronic control device (8) and an electric drive (40), which has a three-phase AC synchronous motor (36) and an actuator which is designed in particular in the form of an inverter (41) and is intended for activating the three-phase AC synchronous motor (36). The compressor (21) comprises a compressor chamber (31) with an inlet (32) and with an outlet (33), also comprises a piston (34), which is mounted in a displaceable manner within the compressor chamber (31), and further comprises a crankshaft (35) and the three-phase AC synchronous motor (36). The three-phase AC synchronous motor (36) has a number P of pole pairs greater than 1, a stator (37) and a rotor (38), which is mounted in a rotatable manner in relation to the stator (37) and is coupled to the piston (34) via the crankshaft (35), and therefore, during operation of the compressor (21), the piston (34) is able, by means of the three-phase AC synchronous motor (36), to reduce the size of a volume (39) enclosed by the compressor chamber (31) and the piston (34) so that the coolant is compressed.