Refrigeration appliance with compartment which can be used in a variable manner

US12146695B2 · kind B2 · utility

Assignee

• BSH Hausgeräte GmbH · DE

Inventors

• Andreas Babucke · Heidenheim, DE
• Oliver Janda · Winnenden, DE
• Niels Liengaard · Ulm, DE
• Clemens Mack · Sontheim, DE
• Matthias Mrzyglod · Ulm, DE
• Vitali Ulrich · Illertissen, DE
• Carsten Weiss · Gießen, DE

Key dates

• Filing date: Nov 11, 2020
• Grant date: Nov 19, 2024
• Expiry date: Jun 16, 2041

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02B30/70
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

A refrigeration appliance with multiple storage compartments has a refrigerant circuit with a first expansion valve, a first heat exchanger, a second expansion valve, and a second heat exchanger connected in series between pressure and suction connections of a compressor. Each heat exchanger is associated with at least one storage compartment in order to control its temperature. A control unit controls the compressor rotational speed and positions of the expansion valves. The control unit has a continuously linear regulator for each storage compartment with a P-component for estimating a required temperature control output using a difference between actual and target temperatures. A model computing unit ascertains a target evaporation temperature for a first storage compartment controlled by the first heat exchanger, and for a second storage compartment controlled by the second heat exchanger. The heat exchangers are operated by selecting the compressor rotational speed and the valve positions of the expansion valves.