Domestic refrigeration appliance with a coolant circuit and method for operating a domestic refrigeration appliance with a coolant circuit

US10801759B2 · kind B2 · utility

Assignee

• BSH Hausgeräte GmbH · DE

Inventors

• Tommy Beckmann · Durchhausen, DE
• Moritz Klein · Giengen an der Brenz, DE
• Achim Paulduro · Albeck, DE
• Christoph Spiegel · Oberhausen, DE

Key dates

• Filing date: Oct 12, 2016
• Grant date: Oct 13, 2020
• Expiry date: Dec 18, 2036

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02B40/00
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

A domestic refrigeration appliance has a heat-insulated housing with a coolable inner container delimiting a coolable interior for storing foods. The interior is cooled with a coolant circuit that includes a compressor with a three-phase motor operated by an actuator via electrically powered motor windings. The actuator is actuated at least indirectly to operate the compressor in a switched-on state with a rotational speed of the three-phase motor at least approximately equal to a predetermined rotational speed. The actuator is caused to switch off the compressor such that the rotational speed of the three-phase motor decreases to a predetermined minimum rotational speed, and thereafter to switch off the three-phase motor for at least a predetermined period of time by de-energizing the motor windings. The period of time is selected long enough to reduce the speed of the motor, beginning from the minimum rotational speed, to reach standstill.