EP2218986B1 - Refrigerator with multiple compartments - Google Patents

Refrigerator with multiple compartments Download PDF

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Publication number
EP2218986B1
EP2218986B1 EP10152640.8A EP10152640A EP2218986B1 EP 2218986 B1 EP2218986 B1 EP 2218986B1 EP 10152640 A EP10152640 A EP 10152640A EP 2218986 B1 EP2218986 B1 EP 2218986B1
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EP
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Prior art keywords
evaporator
compartment
refrigerant
route
warmer
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EP10152640.8A
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German (de)
French (fr)
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EP2218986A2 (en
EP2218986A3 (en
Inventor
Wolfgang Nuiding
Reinhold Rosner
Simon Schechinger
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04—Refrigeration circuit bypassing means
    • F25B2400/0409—Refrigeration circuit bypassing means for the evaporator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/25—Control of valves
    • F25B2600/2511—Evaporator distribution valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series

Definitions

  • the present invention relates to a refrigerator with at least two designed for different storage temperatures subjects.
  • Such devices also referred to as combination refrigerators, generally have a standard refrigerated compartment and a freezer compartment; but it can also be a so-called zero-degree compartment or cold storage compartment combined with a standard refrigerator, or there may be three or even more subjects.
  • each associated with one of the compartments are connected in series in a refrigerant circuit.
  • the distribution of the cooling capacity on the compartments is fixed by the type of device and is dependent, for example, on the order of the evaporators in the refrigerant circuit and their relative sizes. If thedeleistutigsver gutter corresponds to the refrigeration demand of the compartments, useful temperatures set in several subjects, even if a control of the refrigerant circuit is possible only on the basis of the measured temperature in one of the compartments. However, if, for example due to unusual ambient temperatures, the ratio of refrigeration demand of the compartments shifts, this leads to insufficient or excessive refrigeration of a compartment.
  • the evaporator of a relatively hot compartment is located upstream of that of a colder compartment.
  • Refrigerant that evaporates in a stagnant phase of the circuit in the evaporator of the hot compartment displaces colder refrigerant in the evaporator of the cold compartment to the downstream, and there is an undesirable heat input into the cold compartment.
  • Object of the present invention is to provide a refrigerator with at least two designed for different storage temperatures subjects in which an independent cooling of the compartments with good efficiency with a simple design refrigerant circuit can be achieved
  • a refrigerant line belonging solely to the second path and running on the evaporator of the warmer compartment is preferably concentrated in an upper portion of the evaporator of the warmer compartment.
  • Fig. 1 shows a highly schematic front view of the body 1 of a refrigerator with a normal refrigeration compartment 3 and an underlying cold storage compartment 2.
  • a refrigerant circuit which further comprises a compressor 6, a condenser 7, a directional control valve 8, two capillaries 9, 10 and a steam dome 11.
  • Refrigerant discharged from a pressure port of the compressor 6 may return to a suction port of the compressor 6 in two different ways. Both have in common a path that runs from the pressure connection via the condenser to the directional control valve. At the directional control valve 8, the two paths separate. On the first path follow the capillary 9 and a refrigerant line 16 which extends in uniformly distributed meanders over the surface of the plate evaporator 5 of the normal cooling compartment.
  • the second path passes through the capillary 10 and a refrigerant line 17 which extends in meanders over the plate evaporator 4 of the cold storage compartment, and meets at a junction 19 between the capillary 9 and the line 16 back to the first path, so that the line 16 fed with refrigerant in both ways.
  • a control circuit 12 controls the operation of the compressor 6 based on measurement signals of two temperature sensors 13, 14, which are arranged on the two compartments 2 and 3 respectively. If the control circuit 12 by comparison of the measured temperatures with set, the subjects 2, 3 associated setpoint cooling requirements in the normal refrigeration compartment 3, but not in the cold storage compartment 2 determines, it switches the directional control valve 8 to apply the capillary 9 with refrigerant, but not the capillary 10. The refrigerant passes through the evaporator 5 and returns from there via the steam dome 11 to the compressor 6.
  • control circuit 12 When the control circuit 12 detects cooling demand in the cold storage compartment 2, it actuates the directional control valve 8, to act on the capillary 10 alone with refrigerant, regardless of whether at the same time cooling demand in the normal cooling compartment 3 prevails.
  • the refrigerant passes through the two evaporators 4, 5 in succession. Therefore, always when the cold storage compartment 2 is cooled, a small proportion of the cooling capacity on the normal cooling compartment 3.
  • the distribution of cooling capacity on the two compartments 2, 3 depends inter alia on the throughput of the compressor 6, the surfaces of the evaporator 4, 5th and the temperatures prevailing in subjects 2 and 3.
  • Fig. 2 shows an inventive embodiment of the refrigerator in a too Fig. 1 analogous schematic representation.
  • the evaporator 5 of the normal refrigeration compartment 3 here has two separate refrigerant lines, a line 16, which, like the line 16 of the previous embodiment belongs to the first path and connects directly to the capillary 9, and a line 18 downstream to the line 17 of the Evaporator 4 follows. That is, there are two lines on the evaporator 5, one of which, 16, belongs exclusively to the first path and the other, 18, exclusively to the second path.
  • conduit 18 Since the conduit 18 is confined to the upper half of the evaporator 5, substantially only the upper half of this evaporator is cooled by refrigerant circulating in the second path, and a uniform temperature distribution in the normal refrigeration compartment 3 can be established by convection.

Description

Die vorliegende Erfindung betrifft ein Kältegerät mit wenigstens zwei für verschiedene Lagertemperaturen ausgelegten Fächern. Solche auch als Kombinationskältegeräte bezeichneten Geräte haben in der Regel ein Normalkühlfach und ein Gefrierfach; es kann aber auch ein sogenanntes Null-Grad-Fach oder Kaltlagerfach mit einem Normalkühlfach kombiniert sein, oder es können drei oder gar mehr Fächer vorhanden sein.The present invention relates to a refrigerator with at least two designed for different storage temperatures subjects. Such devices, also referred to as combination refrigerators, generally have a standard refrigerated compartment and a freezer compartment; but it can also be a so-called zero-degree compartment or cold storage compartment combined with a standard refrigerator, or there may be three or even more subjects.

Bei einfachen Geräten dieser Art sind Verdampfer, die jeweils einem der Fächer zugeordnet sind, in einem Kältemittelkreislauf in Reihe verbunden. Die Verteilung der Kühlleistung auf die Fächer ist durch die Bauart des Geräts fest vorgegeben und ist zum Beispiel abhängig von der Reihenfolge der Verdampfer im Kältemittelkreislauf und ihren relativen Größen. Wenn die Kühlleistutigsverteilung dem Kältebedarf der Fächer entspricht, stellen sich brauchbare Temperaturen in mehreren Fächern ein, auch wenn eine Regelung des Kältemittelkreislaufs nur anhand der in einem der Fächer gemessenen Temperatur möglich ist. Wenn jedoch - zum Beispiel aufgrund ungewöhnlicher Umgebungstemperaturen - das Verhältnis des Kältebedarfs der Fächer sich verschiebt, so führt dies zu einer unzureichenden oder übermäßigen Kühlung eines Fachs.In simple devices of this type evaporators, each associated with one of the compartments, are connected in series in a refrigerant circuit. The distribution of the cooling capacity on the compartments is fixed by the type of device and is dependent, for example, on the order of the evaporators in the refrigerant circuit and their relative sizes. If the Kühlleistutigsverteilung corresponds to the refrigeration demand of the compartments, useful temperatures set in several subjects, even if a control of the refrigerant circuit is possible only on the basis of the measured temperature in one of the compartments. However, if, for example due to unusual ambient temperatures, the ratio of refrigeration demand of the compartments shifts, this leads to insufficient or excessive refrigeration of a compartment.

Meist ist in einem Kältemittelkreislauf mit in Reihe geschalteten Verdampfern der Verdampfer eines relativ warmen Fachs stromaufwärts von dem eines kälteren Fachs angeordnet. Kältemittel, das in einer Stillstandsphase des Kreislaufs im Verdampfer des warmen Fachs verdampft, verdrängt kälteres Kältemittel im Verdampfer des kalten Fachs nach stromabwärts, und es kommt zu unerwünschtem Wärmeeintrag in das kalte Fach.Most often, in a refrigerant circuit with evaporators connected in series, the evaporator of a relatively hot compartment is located upstream of that of a colder compartment. Refrigerant that evaporates in a stagnant phase of the circuit in the evaporator of the hot compartment, displaces colder refrigerant in the evaporator of the cold compartment to the downstream, and there is an undesirable heat input into the cold compartment.

Aus US 2008/0148745 ist ein Kältegerät mit einem zweiwegigen Kältekreislauf bekannt, von denen einer über einen Verdampfer eines Eisbereiters und der andere über einen ersten Verdampfer eines Kühlfachs verläuft und beide Wege vor einem zweiten Verdampfer des Kühlfachs zusammentreffen.Out US 2008/0148745 a refrigeration device with a two-way refrigeration cycle is known, one of which runs over an evaporator of an icemaker and the other via a first evaporator of a refrigerating compartment and meet both ways in front of a second evaporator of the refrigerating compartment.

Bei einem Kältemittelkreislauf, bei dem wie oben beschrieben erster und zweiter Weg in einer gleichen Leitung über den Verdampfer des wärmeren Fachs verlaufen, kann die Situation auftreten, dass zunächst das wärmere Fach über den ersten Weg gekühlt worden ist und zu einem Zeitpunkt, an dem Kühlungsbedarf im kälteren Fach festgestellt wird, aber kein Kühlungsbedarf im wärmeren Fach mehr besteht, Reste von flüssigem Kältemittel aus dem Verdampfer des wärmeren Fachs durch aus dem Verdampfer des kälteren Fachs zuströmendes gasförmiges Kältemittel verdrängt werden und so ungenutzt bleiben.In a refrigerant circuit in which, as described above, the first and second paths are in a same line through the evaporator of the warmer compartment, the situation may arise that first the warmer compartment is cooled via the first path has been and at a time when the cooling demand is found in the colder compartment, but no need for cooling in the warmer compartment more, residues of liquid refrigerant from the evaporator of the warmer compartment are displaced by flowing from the evaporator of the colder compartment gaseous refrigerant and so unused stay.

Aufgabe der vorliegenden Erfindung ist, ein Kältegerät mit wenigstens zwei für verschiedene Lagertemperaturen ausgelegten Fächern zu schaffen, bei denen eine unabhängige Kühlung der Fächer bei gutem Wirkungsgrad mit einem einfach aufgebauten Kältemittelkreislauf erreichbar istObject of the present invention is to provide a refrigerator with at least two designed for different storage temperatures subjects in which an independent cooling of the compartments with good efficiency with a simple design refrigerant circuit can be achieved

Die Aufgabe wird gelöst durch ein Kältegerät mit den Merkmalen des Anspruchs 1.The object is achieved by a refrigeration device having the features of claim 1.

Um eine gleichmäßige Temperaturschichtung im wärmeren Fach zu erreichen, wenn Kältemittel auf dem zweiten Weg zirkuliert, ist eine allein dem zweiten Weg angehörende und auf dem Verdampfer des wärmeren Fachs verlaufende Kältemittelleitung vorzugsweise in einem oberen Bereich des Verdampfers des wärmeren Fachs konzentriert.In order to achieve uniform temperature stratification in the warmer compartment when refrigerant circulates in the second path, a refrigerant line belonging solely to the second path and running on the evaporator of the warmer compartment is preferably concentrated in an upper portion of the evaporator of the warmer compartment.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung von Ausführungsbeispielen unter Bezugnahme auf die beigefügten Figuren. Es zeigen:

Fig. 1
eine schematische Darstellung des Kältemittelkreislaufs in einem Kältegerät mit wenigstens zwei Lagerfächern gemäß einer alternativen Ausführung die nicht Teil der beanspruchten Erfindung ist; und
Fig. 2
eine zu Fig. 1 analoge Darstellung gemäß einer Ausgestaltung der Erfindung.
Further features and advantages of the invention will become apparent from the following description of embodiments with reference to the accompanying figures. Show it:
Fig. 1
a schematic representation of the refrigerant circuit in a refrigerator with at least two storage compartments according to an alternative embodiment which is not part of the claimed invention; and
Fig. 2
one too Fig. 1 analog representation according to an embodiment of the invention.

Fig. 1 zeigt eine stark schematisierte Vorderansicht des Korpus 1 eines Kältegeräts mit einem Normalkühlfach 3 und einem darunter liegenden Kaltlagerfach 2. An der Rückwand der beiden Fächer 2, 3 sind jeweils Plattenverdampfer 4, 5 zu sehen. Die Verdampfer 4, 5 sind Bestandteile eines Kältemittelkreislaufs, der des Weiteren einen Verdichter 6, einen Verflüssiger 7, ein Wegeventil 8, zwei Kapillaren 9, 10 und einen Dampfdom 11 umfasst. Fig. 1 shows a highly schematic front view of the body 1 of a refrigerator with a normal refrigeration compartment 3 and an underlying cold storage compartment 2. On the rear wall of the two compartments 2, 3 each plate evaporator 4, 5 can be seen. The evaporators 4, 5 are components of a refrigerant circuit, which further comprises a compressor 6, a condenser 7, a directional control valve 8, two capillaries 9, 10 and a steam dome 11.

Aus einem Druckanschluss des Verdichters 6 ausgestoßenes Kältemittel kann auf zwei verschiedenen Wegen zu einem Sauganschluss des Verdichters 6 zurückgelangen. Beiden wegen gemeinsam ist ein Wegstück, das vom Druckanschluss über den Verflüssiger zu dem Wegeventil verläuft. Am Wegeventil 8 trennen sich die beiden Wege. Auf dem ersten Weg folgen die Kapillare 9 und eine Kältemittelleitung 16, die sich in gleichmäßig verteilten Mäandern über die Fläche des Plattenverdampfers 5 des Normalkühlfachs erstreckt. Der zweite Weg verläuft über die Kapillare 10 und eine Kältemittelleitung 17, die sich in Mäandern über den Plattenverdampfer 4 des Kaltlagerfachs erstreckt, und trifft an einer Einmündung 19 zwischen der Kapillare 9 und der Leitung 16 wieder auf den ersten Weg, so dass die Leitung 16 auf beiden Wegen mit Kältemittel gespeist wird.Refrigerant discharged from a pressure port of the compressor 6 may return to a suction port of the compressor 6 in two different ways. Both have in common a path that runs from the pressure connection via the condenser to the directional control valve. At the directional control valve 8, the two paths separate. On the first path follow the capillary 9 and a refrigerant line 16 which extends in uniformly distributed meanders over the surface of the plate evaporator 5 of the normal cooling compartment. The second path passes through the capillary 10 and a refrigerant line 17 which extends in meanders over the plate evaporator 4 of the cold storage compartment, and meets at a junction 19 between the capillary 9 and the line 16 back to the first path, so that the line 16 fed with refrigerant in both ways.

Eine Steuerschaltung 12 steuert den Betrieb des Verdichters 6 anhand von Messsignalen zweier Temperatursensoren 13, 14, die an den beiden Fächern 2 bzw. 3 angeordnet sind. Wenn die Steuerschaltung 12 durch Vergleich der gemessenen Temperaturen mit eingestellten, den Fächern 2, 3 zugeordneten Soll-Temperaturen Kühlungsbedarf im Normalkühlfach 3, nicht aber im Kaltlagerfach 2 feststellt, schaltet sie das Wegeventil 8, um die Kapillare 9 mit Kältemittel zu beaufschlagen, nicht aber die Kapillare 10. Das Kältemittel durchläuft den Verdampfer 5 und kehrt von dort über den Dampfdom 11 zum Verdichter 6 zurück.A control circuit 12 controls the operation of the compressor 6 based on measurement signals of two temperature sensors 13, 14, which are arranged on the two compartments 2 and 3 respectively. If the control circuit 12 by comparison of the measured temperatures with set, the subjects 2, 3 associated setpoint cooling requirements in the normal refrigeration compartment 3, but not in the cold storage compartment 2 determines, it switches the directional control valve 8 to apply the capillary 9 with refrigerant, but not the capillary 10. The refrigerant passes through the evaporator 5 and returns from there via the steam dome 11 to the compressor 6.

Wenn die Steuerschaltung 12 Kühlungsbedarf im Kaltlagerfach 2 feststellt, betätigt sie das Wegeventil 8, um allein die Kapillare 10 mit Kältemittel zu beaufschlagen, unabhängig davon, ob gleichzeitig auch Kühlungsbedarf im Normalkühlfach 3 herrscht. Das Kältemittel durchläuft die beiden Verdampfer 4, 5 nacheinander. Daher entfällt immer, wenn das Kaltlagerfach 2 gekühlt wird, ein kleiner Anteil der Kühlleistung auch auf das Normalkühlfach 3. Die Aufteilung der Kühlleistung auf die beiden Fächer 2, 3 hängt unter anderem ab vom Durchsatz des Verdichters 6, den Flächen der Verdampfer 4, 5 und den in den Fächern 2 und 3 herrschenden Temperaturen. Durchsatz und Verdampferflächen sind so gewählt, dass bei üblichen Betriebstemperaturen der beiden Fächer 2, 3 noch genügend Kühlleistung auf das Normalkühlfach 3 entfällt, um dessen Temperatur zu senken, wenn auch wesentlich langsamer als die des Kaltlagerfachs 2. So ist ausgeschlossen, dass Kühlungsbedarf im Normalkühlfach neu erfasst wird, während Kältemittel auf dem zweiten Zweig, über die beiden Verdampfer 4, 5, zirkuliert. Wenn anhand der vom Sensor 13 gemessenen Temperatur festgestellt wird, dass im Kaltlagerfach 2 kein Kühlungsbedarf mehr besteht, und die Steuerschaltung 12 den Verdichter 6 ausschaltet, muss, da während des Verdichterbetriebs auch die Temperatur im Normalkühlfach 3 abgenommen hat, stets eine gewisse Zeit verstreichen, bevor Kühlungsbedarf im Normalkühlfach 3 auftreten kann.When the control circuit 12 detects cooling demand in the cold storage compartment 2, it actuates the directional control valve 8, to act on the capillary 10 alone with refrigerant, regardless of whether at the same time cooling demand in the normal cooling compartment 3 prevails. The refrigerant passes through the two evaporators 4, 5 in succession. Therefore, always when the cold storage compartment 2 is cooled, a small proportion of the cooling capacity on the normal cooling compartment 3. The distribution of cooling capacity on the two compartments 2, 3 depends inter alia on the throughput of the compressor 6, the surfaces of the evaporator 4, 5th and the temperatures prevailing in subjects 2 and 3. Throughput and evaporator surfaces are chosen so that at normal operating temperatures of the two compartments 2, 3 still sufficient cooling capacity is attributable to the normal refrigeration compartment 3, to its temperature Lower, albeit much slower than that of the cold storage compartment 2. Thus, it is excluded that cooling demand is recaptured in the normal refrigeration compartment, while refrigerant circulates on the second branch, via the two evaporators 4, 5. If it is determined on the basis of the temperature measured by the sensor 13 that the cooling storage compartment no longer exists in the cold storage compartment 2, and the control circuit 12 switches off the compressor 6, since the temperature in the normal refrigeration compartment 3 has also decreased during compressor operation, a certain amount of time must elapse, before cooling demand can occur in the normal refrigeration compartment 3.

Fig. 2 zeigt eine erfindungsgemäße Ausgestaltung des Kältegeräts in einer zu Fig. 1 analogen schematischen Darstellung. Der Verdampfer 5 des Normalkühlfachs 3 weist hier zwei voneinander getrennte Kältemittelleitungen auf, eine Leitung 16, die wie die Leitung 16 des vorherigen Ausführungsbeispiels zum ersten Weg gehört und unmittelbar an die Kapillare 9 anschließt, und eine Leitung 18, die stromabwärts auf die Leitung 17 des Verdampfers 4 folgt. D.h. es gibt zwei Leitungen auf dem Verdampfer 5, von denen die eine, 16, ausschließlich zum ersten Weg und die andere, 18, ausschließlich zum zweiten Weg gehört. Da eine Einmündung 19, an der die Wege des Kältemittelkreislaufs wieder aufeinander treffen, stromabwärts von den Leitungen 16, 18 des Verdampfers 5 liegt, führt ein Umschalten der Kältemittelzirkulation vom ersten auf den zweiten Weg, zu der es kommen kann, wenn Kühlungsbedarf im Kaltlagerfach 2 neu erfasst wird, nicht zu einer Verdrängung von flüssigem Kältemittel aus dem Verdampfer 5 durch gasförmiges Kältemittel aus dem Verdampfer 4. Fig. 2 shows an inventive embodiment of the refrigerator in a too Fig. 1 analogous schematic representation. The evaporator 5 of the normal refrigeration compartment 3 here has two separate refrigerant lines, a line 16, which, like the line 16 of the previous embodiment belongs to the first path and connects directly to the capillary 9, and a line 18 downstream to the line 17 of the Evaporator 4 follows. That is, there are two lines on the evaporator 5, one of which, 16, belongs exclusively to the first path and the other, 18, exclusively to the second path. Since a junction 19 at which the paths of the refrigerant circuit meet again downstream of the lines 16, 18 of the evaporator 5, switching the refrigerant circulation from the first to the second way, which can occur when cooling demand in the cold storage compartment second is not detected, not to a displacement of liquid refrigerant from the evaporator 5 by gaseous refrigerant from the evaporator. 4

Da die Leitung 18 auf die obere Hälfte des Verdampfers 5 beschränkt ist, wird durch auf dem zweiten Weg zirkulierendes Kältemittel im wesentlichen auch nur die obere Hälfte dieses Verdampfers gekühlt, und eine gleichmäßige Temperaturverteilung im Normalkühlfach 3 kann sich durch Konvektion einstellen.Since the conduit 18 is confined to the upper half of the evaporator 5, substantially only the upper half of this evaporator is cooled by refrigerant circulating in the second path, and a uniform temperature distribution in the normal refrigeration compartment 3 can be established by convection.

Claims (4)

  1. Refrigeration appliance with at least two compartments (2, 3) designed for different storage temperatures and a refrigerant circuit, in which a first route runs from a pressure-side connector of a compressor (6) via a first refrigerant line (16) of an evaporator (5) of the warmer compartment (3) to a suction connection of the compressor (6) and a second route runs from the pressure-side connector via an evaporator (4) of the colder compartment (2) to the suction connection and the evaporator (5) of the warmer compartment (3) is positioned downstream of the evaporator (4) of the colder compartment (2) on the second route, characterised in that the refrigerant circulating on the second route is directed into a second refrigerant line (18) of the evaporator (5) of the warmer compartment (3), which is provided in addition to the first refrigerant line (16) of the evaporator (5).
  2. Refrigeration appliance according to claim 1, characterised in that an upper region of the evaporator (5) of the warmer compartment (3) is refrigerated by means of refrigerant circulating on the second route, in particular is more strongly refrigerated than a lower region of the same.
  3. Refrigeration appliance according to claim 1 or 2, characterised in that the first refrigerant line (16) on the evaporator (5) of the warmer compartment (3) runs between a throttle point (9) and a confluence (19) of the second route into the first.
  4. Refrigeration appliance according to one of claims 1 to 3, characterised in that the second refrigerant line (18) belonging solely to the second route, which runs on the evaporator (5) of the warmer compartment (3), is concentrated in an upper region of the evaporator (5) of the warmer compartment (3).
EP10152640.8A 2009-02-16 2010-02-04 Refrigerator with multiple compartments Active EP2218986B1 (en)

Applications Claiming Priority (1)

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DE202009002222U DE202009002222U1 (en) 2009-02-16 2009-02-16 Refrigeration unit with several compartments

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EP2218986A2 EP2218986A2 (en) 2010-08-18
EP2218986A3 EP2218986A3 (en) 2016-01-06
EP2218986B1 true EP2218986B1 (en) 2018-10-31

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DE102012201399A1 (en) * 2012-02-01 2013-08-01 BSH Bosch und Siemens Hausgeräte GmbH Refrigerating appliance with two storage chambers

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Publication number Priority date Publication date Assignee Title
US4227379A (en) * 1978-02-23 1980-10-14 Tokyo Shibaura Denki Kabushiki Kaisha Cooling apparatus
JP4348610B2 (en) * 2003-09-29 2009-10-21 株式会社ヴァレオサーマルシステムズ Refrigeration cycle
US20050210898A1 (en) * 2004-03-23 2005-09-29 Samsung Electronics Co., Ltd. Refrigerator and control method thereof
WO2006079272A1 (en) * 2005-01-31 2006-08-03 Haier Group Corporation A multi-temperature control refrigerator comprising an ice machine

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DE202009002222U1 (en) 2009-04-23
EP2218986A3 (en) 2016-01-06
RU2010103015A (en) 2011-08-10

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