EP3187799B1 - Refrigeration and/or freezer device - Google Patents

Refrigeration and/or freezer device Download PDF

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Publication number
EP3187799B1
EP3187799B1 EP16205698.0A EP16205698A EP3187799B1 EP 3187799 B1 EP3187799 B1 EP 3187799B1 EP 16205698 A EP16205698 A EP 16205698A EP 3187799 B1 EP3187799 B1 EP 3187799B1
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EP
European Patent Office
Prior art keywords
refrigerator
refrigeration
compressor
loop
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP16205698.0A
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German (de)
French (fr)
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EP3187799A1 (en
Inventor
Thomas Ertel
Matthias Heckenberger
David Weiss
Matthias Wiest
Michael Schick
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Liebherr Hausgeraete Ochsenhausen GmbH
Original Assignee
Liebherr Hausgeraete Ochsenhausen GmbH
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Classifications

    • 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • 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
    • F25B21/00—Machines, plants or systems, using electric or magnetic effects
    • F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
    • 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
    • F25B25/00—Machines, plants or systems, using a combination of modes of operation covered by two or more of the groups F25B1/00 - F25B23/00
    • 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
    • F25B31/00—Compressor arrangements
    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • 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
    • F25B2400/06—Several compression cycles arranged in parallel
    • F25B2400/061—Several compression cycles arranged in parallel the capacity of the first system being different from the second
    • 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
    • F25D2201/00—Insulation
    • F25D2201/10—Insulation with respect to heat
    • F25D2201/14—Insulation with respect to heat using subatmospheric pressure

Definitions

  • the present invention relates to a refrigerator and / or freezer with at least one body and with at least one cooled interior located in the body and with at least one refrigeration unit for generating the cooling power required for cooling the cooled interior.
  • compressors with speed control are known from the prior art, by means of which the cooling capacity can be controlled or adjusted in a specific range.
  • the minimum and maximum cooling capacity differ approximately by a factor of 4. For most cooling or freezers, an ideal design is not yet possible with such a compressor.
  • the present invention is therefore based on the object of developing a refrigerator and / or freezer of the type mentioned at the outset in such a way that particularly efficient cold generation is possible in a wide power range.
  • the cooling capacity is ideally adapted to the respective requirements in order to guarantee optimal location conditions.
  • the design of the refrigeration unit according to the invention enables very efficient and also low-noise operation at times when the refrigeration circuit is under low load. If there is an increase in the load, for example when goods are stored, the refrigeration unit according to the invention provides the necessary, higher refrigeration capacity.
  • the refrigeration units are a compressor and a Peltier element.
  • the Peltier element serves to cover the base load of the device and the peak load is covered by the compressor and the Peltier element in cumulative operation.
  • the cold generation by a Peltier element takes place in such a way that it runs continuously and, if necessary, a proportional power adjustment having.
  • the control or regulation unit is thus designed in such a way that it operates the Peltier element in continuous operation.
  • Control or regulating means can be provided which operate the refrigeration units as a function of the operating mode of the device, as disclosed in the dependent claim 2.
  • a refrigeration unit can be provided to cover the base load per device, or a refrigeration unit can be provided in each case to cover the base load of each compartment of a refrigerator or freezer with a plurality of compartments.
  • This refrigeration unit contains a compressor. Their design depends on the size of the device or the expected cooling load from stored goods.
  • Such a refrigeration unit for rapid cooling can be provided per device or also per compartment of the device.
  • the device has at least one temperature sensor for measuring the temperature
  • a control or regulation unit which is designed that this at a Temperature above a switch-on value additionally activates a high-power cold generator and, at a temperature below a switch-off value, initiates a change to a cold-generating unit with lower power, as disclosed in independent claim 1.
  • the device has at least one sensor for the direct or indirect detection of warm objects and / or for the direct or indirect detection of a heat input in the cooled interior.
  • This sensor can be designed as a door sensor, for example. If the door is opened, the sensor reports this to a control or regulation unit and it is assumed that goods are inserted or that warm air enters the device. In this case, a switch is made to a high-performance cold generator or its operation is activated, as disclosed in claim 1.
  • Direct detection of warm objects for example by means of an infrared sensor, is also conceivable.
  • the refrigeration units are activated by a control or regulation unit.
  • the device has display means which indicate to the user which refrigeration unit is in operation.
  • the refrigerator or freezer has a thermal insulation of the body, which can be designed, for example, as full vacuum insulation.
  • This consists of a core material that is arranged in a vacuum-tight film. There is a vacuum within the area enclosed by the film. Apart from this thermal insulation, there is preferably no further thermal insulation between the outside of the device and the cooled interior.
  • the exemplary embodiment relates to a refrigerator or freezer which, as refrigeration units, has one or more Peltier elements on the one hand and one or more compressors on the other.
  • the door and the body are thermally insulated using full vacuum insulation, i.e. insulation that consists only of a core material that is contained in a vacuum-tight film within which a vacuum prevails.
  • the Peltier element continues to run, the additional cooling power is provided by the compressor, that is to say by the refrigerant circuit.
  • the heat is extracted by means of an evaporator, which forms part of the refrigerant circuit.
  • the temperature in the cooled interior is measured by means of a temperature sensor and that if the actual temperature is above a switch-on value, a switch is made to a high-power cold generator and, at a temperature below a switch-off value, this high-power cold generator is switched off and is changed to a cold generator with lower power, as disclosed in independent claim 1.

Description

Die vorliegende Erfindung betrifft ein Kühl- und/oder Gefriergerät mit wenigstens einem Korpus und mit wenigstens einem in dem Korpus befindlichen gekühlten Innenraum sowie mit wenigstens einem Kälteaggregat zur Erzeugung der Kälteleistung, die zur Kühlng des gekühlten Innenraums benötigt wird.The present invention relates to a refrigerator and / or freezer with at least one body and with at least one cooled interior located in the body and with at least one refrigeration unit for generating the cooling power required for cooling the cooled interior.

Aus dem Stand der Technik ist es bekannt, zur Bereitstellung der erforderlichen Kälteleistung einen Kältemittelkreislauf mit einem Kompressor einzusetzen, der beispielsweise bei fester Drehzahl und in Abhängigkeit von der gemessenen Temperatur in dem gekühlten Innenraum betrieben wird. Je nachdem, ob der Temperatur Istwert in einem Sollwertbereich liegt, wird der Kompressor ein- oder ausgeschaltet. Um größere Lastbereiche abdecken zu können, ist der Kompressor für den Grundbetrieb überdimensioniert.From the prior art it is known to use a refrigerant circuit with a compressor to provide the required refrigeration capacity, which is operated, for example, at a fixed speed and as a function of the measured temperature in the cooled interior. The compressor is switched on or off depending on whether the actual temperature value lies within a setpoint range. In order to be able to cover larger load ranges, the compressor is oversized for basic operation.

Aus dem Stand der Technik sind des Weiteren Kompressoren mit Drehzahlregelung bekannt, mittels derer die Kälteleistung in einem bestimmten Bereich geregelt bzw. eingestellt werden kann. Die minimale und die maximale Kälteleistung unterscheiden sich in etwa um den Faktor 4. Bei den meisten Kühl- bzw. Gefriergeräten ist mit einem solchen Kompressor noch keine ideale Auslegung möglich.Furthermore, compressors with speed control are known from the prior art, by means of which the cooling capacity can be controlled or adjusted in a specific range. The minimum and maximum cooling capacity differ approximately by a factor of 4. For most cooling or freezers, an ideal design is not yet possible with such a compressor.

Dokumente GB2177188 , GB2165079 , WO2007/089789 , JP2003130538 , EP1677059 , WO2009/003893 , US2007/180839 , US2015/308721 , DE102010063384 offenbaren Kühl- und/oder Gefriergeräte mit wenigstens zwei Kälteerzeugungseinheiten mit unterschiedlichen Kälteleistungen.Documents GB2177188 , GB2165079 , WO2007 / 089789 , JP2003130538 , EP1677059 , WO2009 / 003893 , US2007 / 180839 , US2015 / 308721 , DE102010063384 disclose refrigerators and / or freezers with at least two refrigeration units with different refrigeration capacities.

Der vorliegenden Erfindung liegt somit die Aufgabe zugrunde, ein Kühl- und/oder Gefriergerät der eingangs genannten Art dahingehend weiterzubilden, dass eine besonders effiziente Kälteerzeugung in einem weiten Leistungsbereich möglich ist.The present invention is therefore based on the object of developing a refrigerator and / or freezer of the type mentioned at the outset in such a way that particularly efficient cold generation is possible in a wide power range.

Diese Aufgabe wird durch ein Kühl- und/oder Gefriergerät mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a refrigerator and / or freezer with the features of claim 1.

Die vorliegende Erfindung ist im unabhängigen Anspruch 1 offenbart, weitere vorteilhafte Ausführungsbeispiele sind in den abhängigen Ansprüchen offenbart.The present invention is disclosed in independent claim 1, further advantageous exemplary embodiments are disclosed in the dependent claims.

Auf diese Weise ist es möglich, eine effiziente Erzeugung von kleinen und von großen Kälteleistungen zu realisieren.In this way, it is possible to efficiently generate both small and large cooling capacities.

Die Kälteleistung ist an die jeweiligen Erfordernisse ideal angepasst, um optimale Lagebedingungen zu gewährleisten.The cooling capacity is ideally adapted to the respective requirements in order to guarantee optimal location conditions.

Aufgrund der immer besser werdenden Isolierung von Kühl- bzw. Gefriergeräten sinkt der Leistungsbedarf bei geschlossenem Verschlusselement, das heißt bei verschlossener Türe oder Klappe immer weiter. In diesem Fall ist somit eine vergleichsweise geringe Kälteleistung erforderlich. Bei der Einlagerung von Ware oder bei der Öffnung des Verschlusselementes ist jedoch immer ein großer Leistungsbedarf vorhanden, der durch das Kälteaggregat bereitgestellt werden muss.Due to the increasingly better insulation of refrigerators and freezers, the power requirement decreases with the closure element closed, i.e. with the door or flap closed. In this case, a comparatively low cooling capacity is required. When storing goods or opening the closure element, however, there is always a large power requirement that must be provided by the refrigeration unit.

Durch die erfindungsgemäße Gestaltung des Kälteaggregats ist ein sehr effizienter und auch geräuscharmer Betrieb zu Zeiten mit geringer Belastung des Kältekreislaufes möglich. Kommt es zu einer Erhöhung der Last, beispielsweise wenn Ware eingelagert wird, stellt das erfindungsgemäße Kälteaggregat die notwendige, höhere Kälteleistung bereit.The design of the refrigeration unit according to the invention enables very efficient and also low-noise operation at times when the refrigeration circuit is under low load. If there is an increase in the load, for example when goods are stored, the refrigeration unit according to the invention provides the necessary, higher refrigeration capacity.

Gemäß der vorliegenden Erfindung ist es vorgesehen, dass die Kälteerzeugungseinheiten ein Kompressor und ein Peltierelement sind. So dient das Peltierelement zur Abdeckung der Grundlast des Gerätes und die Spitzenlast wird durch den Kompressor und das Peltierelement im kumulativen Betrieb abgedeckt.According to the present invention it is provided that the refrigeration units are a compressor and a Peltier element. The Peltier element serves to cover the base load of the device and the peak load is covered by the compressor and the Peltier element in cumulative operation.

Die Kälteerzeugung durch ein Peltierelement erfolgt derart, dass dieses im Dauerbetrieb läuft und ggf. eine proportionale Leistungsanpassung aufweist. Die Steuerungs- oder Regelungseinheit ist somit derart ausgebildet, dass diese das Peltierelement im Dauerbetrieb betreibt.The cold generation by a Peltier element takes place in such a way that it runs continuously and, if necessary, a proportional power adjustment having. The control or regulation unit is thus designed in such a way that it operates the Peltier element in continuous operation.

Eine Kombination mit einer weiteren Kälteerzeugungseinheit mit anderer Leistung ist von der Erfindung mit umfasst, wie das im unabhängigen Anspruch 1 offenbart ist.A combination with a further refrigeration unit with a different output is also encompassed by the invention, as is disclosed in independent claim 1.

An dieser Stelle wird darauf hingewiesen, dass der Begriff "ein" oder "eine" nicht dahingehend einschränkend auszulegen ist, dass genau eines der genannten Elemente vorhanden ist sondern auch mehrere Elemente mit umfasst.At this point, it is pointed out that the term “a” or “an” is not to be interpreted restrictively to the effect that precisely one of the elements mentioned is present but also includes several elements.

Es können Steuerungs- oder Regelungsmittel vorgesehen sein, die die Kälteerzeugungseinheiten in Abhängigkeit vom Betriebsmodus des Gerätes betreiben, wie das im abhängigen Anspruch 2 offenbart ist.Control or regulating means can be provided which operate the refrigeration units as a function of the operating mode of the device, as disclosed in the dependent claim 2.

So ist es vorgesehen, zur Abdeckung der Grundlast eine oder mehrere Kälteerzeugungseinheiten zu betreiben. Diese können beispielsweise auf eine Raumtemperatur von 25° C ausgelegt werden. Somit kann beispielsweise eine Kälteerzeugungseinheit zur Abdeckung der Grundlast pro Gerät vorgesehen sein oder auch jeweils eine Kälteerzeugungseinheit zur Abdeckung der Grundlast eines jeden Kompartimentes eines Kühl- bzw. Gefriergerätes mit mehreren Kompartimenten.It is intended to operate one or more refrigeration units to cover the base load. These can be designed for a room temperature of 25 ° C, for example. Thus, for example, a refrigeration unit can be provided to cover the base load per device, or a refrigeration unit can be provided in each case to cover the base load of each compartment of a refrigerator or freezer with a plurality of compartments.

Eine weitere Kälteerzeugungseinheit mit vergleichsweise großer Leistung ist zur schnelleren Abkühlung vorgesehen. Diese Kälteerzeugungseinheit beinhaltet einen Kompressor. Deren Auslegung richtet sich nach der Gerätegröße bzw. nach der zu erwartenden Kühllast durch eingelagerte Ware.Another cooling unit with a comparatively high output is provided for faster cooling. This refrigeration unit contains a compressor. Their design depends on the size of the device or the expected cooling load from stored goods.

Es kann eine solche Kälteerzeugungseinheit zur schnellen Abkühlung pro Gerät oder auch pro Kompartiment des Gerätes vorgesehen sein.Such a refrigeration unit for rapid cooling can be provided per device or also per compartment of the device.

Das Gerät weist wenigstens einen Temperatursensor zur Messung der TemperaturThe device has at least one temperature sensor for measuring the temperature

in dem gekühlten Innenraum auf, wobei eine Steuerungs- oder Regelungseinheit vorgesehen ist, die ausgebildet ist, dass diese bei einer Temperatur oberhalb eines Einschaltwertes einen Kälteerzeuger mit hoher Leistung zusätzlich aktiviert und bei einer Temperatur unterhalb eines Ausschaltwertes einen Wechsel auf eine Kälteerzeugseinheit mit kleinerer Leistung in die Wege leitet, wie das im unabhängigen Anspruch 1 offenbart ist.in the cooled interior, wherein a control or regulation unit is provided, which is designed that this at a Temperature above a switch-on value additionally activates a high-power cold generator and, at a temperature below a switch-off value, initiates a change to a cold-generating unit with lower power, as disclosed in independent claim 1.

In einer weiteren Ausgestaltung der Erfindung weist das Gerät wenigstens einen Sensor zur unmittelbaren oder mittelbaren Erkennung warmer Objekte und/oder zur unmittelbaren oder mittelbaren Erkennung eines Wärmeeintrages in dem gekühlten Innenraum auf.In a further embodiment of the invention, the device has at least one sensor for the direct or indirect detection of warm objects and / or for the direct or indirect detection of a heat input in the cooled interior.

Dieser Sensor kann beispielsweise als Türsensor ausgeführt sein. Wird die Tür geöffnet, meldet der Sensor dies entsprechend an eine Steuerungs- oder Regelungseinheit und es wird davon ausgegangen, dass Ware eingelegt wird bzw. Warmluft in das Gerät eintritt. In diesem Fall wird auf einen Kälteerzeuger mit hoher Leistung umgeschaltet bzw. dessen Betrieb aktiviert, wie das im Anspruch 1 offenbart ist.This sensor can be designed as a door sensor, for example. If the door is opened, the sensor reports this to a control or regulation unit and it is assumed that goods are inserted or that warm air enters the device. In this case, a switch is made to a high-performance cold generator or its operation is activated, as disclosed in claim 1.

Auch eine unmittelbare Erkennung warmer Objekte beispielsweise durch einen Infrarotsensor ist denkbar.Direct detection of warm objects, for example by means of an infrared sensor, is also conceivable.

Die Ansteuerung der Kälteerzeugungseinheiten erfolgt durch eine Steuer- oder Regelungseinheit.The refrigeration units are activated by a control or regulation unit.

In einer weiteren bevorzugten Ausgestaltung der Erfindung weist das Gerät Anzeigemittel auf, die dem Nutzer anzeigen, welche Kälteerzeugungseinheit in Betrieb ist.In a further preferred embodiment of the invention, the device has display means which indicate to the user which refrigeration unit is in operation.

Weiter kann vorgesehen sein, dass eine manuelle Aktivierung des Kompressors nutzerseitig möglich ist, wie das im abhängigen Anspruch 5 offenbart ist. Der Nutzer kann diese aktivieren, wenn er warme Ware in den gekühlten Innenraum einlegt.It can further be provided that manual activation of the compressor is possible on the user side, as disclosed in the dependent claim 5. The user can activate this when he places warm goods in the cooled interior.

Dieser kann für eine freiwählbare Zeit in Betrieb sein, jedoch nur bis zum Erreichen eines Ausschaltwertes, wie es im unabhängigen Anspruch 1 offenbart ist.This can be in operation for a freely selectable time, but only until a switch-off value is reached, as disclosed in independent claim 1.

In einer weiteren Ausgestaltung der Erfindung weist das Kühl- bzw. Gefriergerät eine Wärmeisolierung des Korpus auf, die beispielsweise als Vollvakuumdämmung ausgeführt sein kann. Diese besteht aus einem Kernmaterial, dass in einer vakuumdichten Folie angeordnet ist. Innerhalb des von der Folie umschlossenen Bereiches herrrscht Vakuum. Vorzugsweise ist außer dieser Wärmedämmung keine weitere Wärmedämmung zwischen der Außenseite des Gerätes und dem gekühlten Innenraum vorhanden.In a further embodiment of the invention, the refrigerator or freezer has a thermal insulation of the body, which can be designed, for example, as full vacuum insulation. This consists of a core material that is arranged in a vacuum-tight film. There is a vacuum within the area enclosed by the film. Apart from this thermal insulation, there is preferably no further thermal insulation between the outside of the device and the cooled interior.

Weitere Einzelheiten und Vorteile der Erfindung werden anhand eines im Folgenden beschriebenen Ausführungsbeispiels näher erläutert.Further details and advantages of the invention are explained in more detail using an exemplary embodiment described below.

Das Ausführungsbeispiel betrifft ein Kühl- bzw. Gefriergerät, das als Kälteerzeugungseinheiten einerseits ein oder mehrere Peltierelemente und andererseits einen oder mehrere Kompressoren aufweist.The exemplary embodiment relates to a refrigerator or freezer which, as refrigeration units, has one or more Peltier elements on the one hand and one or more compressors on the other.

Die Wärmeisolation der Tür sowie des Korpus erfolgt durch eine Vollvakuumdämmung, das heißt durch eine Dämmung, die nur aus einem Kernmaterial besteht, das in einer vakuumdichten Folie aufgenommen ist, innerhalb derer Vakuum herrscht.The door and the body are thermally insulated using full vacuum insulation, i.e. insulation that consists only of a core material that is contained in a vacuum-tight film within which a vacuum prevails.

Außer dieser Vakuumdämmung ist vorzugsweise keine weitere Dämmung vorgesehen. Aufgrund der guten Wärmedämmeigenschaften einer solchen Wärmeisolation genügt es, wenn im normalen Betrieb des Gerätes, das heißt wenn kein Wärmeeintrag durch eine geöffnete Tür oder Waren in das Gerät erfolgt, die Kälteleistung durch ein oder mehrere Peltierelemente bereitgestellt wird.Apart from this vacuum insulation, no further insulation is preferably provided. Due to the good thermal insulation properties of such thermal insulation, it is sufficient if the cooling capacity is provided by one or more Peltier elements during normal operation of the device, i.e. when no heat is introduced into the device through an open door or goods.

Kommt es dazu, dass der Nutzer die Tür öffnet, beispielsweise um Ware zu entnehmen oder warme Ware einzulegen, wird dies durch einen Sensor des Gerätes erkannt und ein Kompressor zugeschaltet. In diesem Fall läuft das Peltierelement weiter, die zusätzliche Kälteleistung wird durch den Kompressor, das heißt durch den Kältemittelkreislauf bereitgestellt. Die Wärme wird mittels eines Verdampfers entzogen, der Bestandteil des Kältemittelkreislaufes bildet.If the user opens the door, for example to remove goods or insert warm goods, this is detected by a sensor in the device and a compressor is switched on. In this case, the Peltier element continues to run, the additional cooling power is provided by the compressor, that is to say by the refrigerant circuit. The heat is extracted by means of an evaporator, which forms part of the refrigerant circuit.

Gemäß der vorliegenden Erfindung ist vorgesehen, dass die Temperatur in dem gekühlten Innenraum mittels eines Temperaturfühlers gemessen wird und dass bei einer Isttemperatur oberhalb eines Einschaltwertes auf einen Kälteerzeuger mit hoher Leistung gewechselt wird und bei einer Temperatur unterhalb eines Ausschaltwertes dieser Kälteerzeuger mit hoher Leistung abgeschaltet wird und auf einen Kälteerzeuger mit kleinerer Leistung gewechselt wird, wie das im unabhängigen Anspruch 1 offenbart ist.According to the present invention, it is provided that the temperature in the cooled interior is measured by means of a temperature sensor and that if the actual temperature is above a switch-on value, a switch is made to a high-power cold generator and, at a temperature below a switch-off value, this high-power cold generator is switched off and is changed to a cold generator with lower power, as disclosed in independent claim 1.

Claims (6)

  1. Refrigerator and/or freezer, comprising
    a carcass with full-vacuum insulation and with a door with full-vacuum insulation,
    a refrigerated inner space located in the carcass, as well as
    a refrigerating unit for generating the refrigerating capacity for the refrigerated inner space, wherein
    the refrigerating unit comprises two refrigeration-generating units which in an operating state provide a different refrigerating capacity, and can be operated individually or cumulatively,
    the two refrigeration-generating units are a compressor as a component of a refrigerant circuit and a Peltier element, and
    the appliance comprises a temperature sensor for measuring the temperature in the refrigerated inner space,
    wherein
    the Peltier element is actuated such that it runs in continuous operation, and
    an open-loop or closed-loop control unit is provided, characterised in that the open-loop or closed-loop control unit is designed, at a temperature above a switch-on value, to additionally switch on the compressor and, below a switch-off value, to effect a change only to operation with the Peltier element which runs in continuous operation and to switch off the compressor.
  2. Refrigerator and/or freezer according to one of the preceding claims, characterised in that open-loop or closed-loop control means are provided which operate the refrigeration-generating units depending on the operating mode of the appliance.
  3. Refrigerator and/or freezer according to one of the preceding claims, characterised in that at least one sensor for recognising warm objects or for recognising a heat input in/into the refrigerated inner space is provided.
  4. Refrigerator and/or freezer according to one of the preceding claims, characterised in that indicator means are provided which indicate to the user the refrigeration-generating unit(s) which is/are active in each case.
  5. Refrigerator and/or freezer according to one of the preceding claims, characterised in that a means is provided by which the compressor can be activated by the user.
  6. Refrigerator and/or freezer according to claim 3, wherein the sensor is a door sensor which is designed to report the opening of a door to an open-loop or closed-loop control unit in order to activate operation of the compressor.
EP16205698.0A 2015-12-30 2016-12-21 Refrigeration and/or freezer device Active EP3187799B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015016910.6A DE102015016910A1 (en) 2015-12-30 2015-12-30 Fridge and / or freezer

Publications (2)

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EP3187799A1 EP3187799A1 (en) 2017-07-05
EP3187799B1 true EP3187799B1 (en) 2021-03-03

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EP16205698.0A Active EP3187799B1 (en) 2015-12-30 2016-12-21 Refrigeration and/or freezer device

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EP (1) EP3187799B1 (en)
DE (1) DE102015016910A1 (en)
ES (1) ES2871075T3 (en)

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JP2003130538A (en) * 2001-10-18 2003-05-08 Matsushita Refrig Co Ltd Component refrigerator
EP1677059A2 (en) * 2004-12-30 2006-07-05 LG Electronics, Inc. Hybrid cooling system, and refrigerator and freezer using the same
US20070180839A1 (en) * 2006-02-09 2007-08-09 Daewoo Electronics Corporation Cooling apparatus of kimchi refrigerator and method therefor
WO2009003893A2 (en) * 2007-06-29 2009-01-08 BSH Bosch und Siemens Hausgeräte GmbH Refrigeration device and method for maintaining a constant predefined temperature in a refrigeration compartment of the refrigeration device
DE102010063384A1 (en) * 2010-12-17 2012-06-21 BSH Bosch und Siemens Hausgeräte GmbH Cooling apparatus i.e. household cooling apparatus, has main cooling unit for cooling storage chamber and comprising compressor, condenser and orifice, and peltier element for supporting main cooling unit
US20150308721A1 (en) * 2011-05-31 2015-10-29 Lg Electronics Inc. Refrigerator

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DE8428748U1 (en) * 1984-09-29 1985-06-27 TYLER Refrigeration GmbH, 6250 Limburg Monitoring and control device for refrigeration systems and heat pumps
GB8516410D0 (en) * 1985-06-28 1985-07-31 Barker George & Co Ltd Refrigeration systems
EP1984208B1 (en) * 2006-01-30 2012-02-29 Amerigon, Inc. Cooling system for container in a vehicle
US9182158B2 (en) * 2013-03-15 2015-11-10 Whirlpool Corporation Dual cooling systems to minimize off-cycle migration loss in refrigerators with a vacuum insulated structure
CN202709531U (en) * 2012-06-06 2013-01-30 合肥华凌股份有限公司 Refrigerating system and refrigerator with same
CH710088B1 (en) * 2014-09-08 2021-05-14 V Zug Ag Cooling device with selectable noise emissions.
DE102015106620A1 (en) * 2015-04-29 2016-11-03 Aht Cooling Systems Gmbh refrigerated display device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003130538A (en) * 2001-10-18 2003-05-08 Matsushita Refrig Co Ltd Component refrigerator
EP1677059A2 (en) * 2004-12-30 2006-07-05 LG Electronics, Inc. Hybrid cooling system, and refrigerator and freezer using the same
US20070180839A1 (en) * 2006-02-09 2007-08-09 Daewoo Electronics Corporation Cooling apparatus of kimchi refrigerator and method therefor
WO2009003893A2 (en) * 2007-06-29 2009-01-08 BSH Bosch und Siemens Hausgeräte GmbH Refrigeration device and method for maintaining a constant predefined temperature in a refrigeration compartment of the refrigeration device
DE102010063384A1 (en) * 2010-12-17 2012-06-21 BSH Bosch und Siemens Hausgeräte GmbH Cooling apparatus i.e. household cooling apparatus, has main cooling unit for cooling storage chamber and comprising compressor, condenser and orifice, and peltier element for supporting main cooling unit
US20150308721A1 (en) * 2011-05-31 2015-10-29 Lg Electronics Inc. Refrigerator

Also Published As

Publication number Publication date
EP3187799A1 (en) 2017-07-05
DE102015016910A1 (en) 2017-07-06
ES2871075T3 (en) 2021-10-28

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