EP3191774A1 - Cooling appliance with selectable noise emissions - Google Patents

Cooling appliance with selectable noise emissions

Info

Publication number
EP3191774A1
EP3191774A1 EP15760077.6A EP15760077A EP3191774A1 EP 3191774 A1 EP3191774 A1 EP 3191774A1 EP 15760077 A EP15760077 A EP 15760077A EP 3191774 A1 EP3191774 A1 EP 3191774A1
Authority
EP
European Patent Office
Prior art keywords
cooling device
controller
cooling
operating modes
fan
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.)
Granted
Application number
EP15760077.6A
Other languages
German (de)
French (fr)
Other versions
EP3191774B1 (en
Inventor
Jochen Ganz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
V-Zug AG
Original Assignee
V-Zug AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by V-Zug AG filed Critical V-Zug AG
Priority to SI201530766T priority Critical patent/SI3191774T1/en
Priority to PL15760077T priority patent/PL3191774T3/en
Publication of EP3191774A1 publication Critical patent/EP3191774A1/en
Application granted granted Critical
Publication of EP3191774B1 publication Critical patent/EP3191774B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/12—Sound

Definitions

  • the invention relates to a refrigerator for refrigerated storage of food, in particular a refrigerator, with at least one refrigerator, a noise-generating cooling device and a controller for controlling the cooling device.
  • Cooling devices for the refrigerated storage of foodstuffs with a noise-generating cooling device are known, in particular in the form of refrigerators or freezers.
  • the controller has multiple operation modes to switch between. At least two operating modes differ in that they deliver different noise emissions with the same cooling power to be provided by the cooling device.
  • the cooling capacity indicates there how much Were ⁇ meenergy per unit time discharged from the refrigerator.
  • the noise emissions from such cooling devices depend essentially on the cooling capacity which is provided by the cooling device.
  • the cooling performance is due to the user or hardly influenced by the ambient conditions.
  • the home putparameter are here tells you what kind of noise emissions to a certain period of time is not disturbing tole ⁇ gurable or environmental hazards.
  • Noise emissions may differ in different noise characteristics, in particular the sound pressure level or the frequency. For example, that can
  • Cooling unit during a time period according to, but are at a relatively higher efficiency and therefore operated with low energy consumption, while can be the volume required re- prised in a different time period and this is reflected in a higher Ener ⁇ energy requirement. Between the operating modes can be switched in particular during operation.
  • the cooling device of the cooling device may have a heat pump, wherein the heat pump consists of at least one compressor, a condenser, an evaporator and a throttle.
  • the heat pump may have a throttle on ⁇ which can form at least two different average flow resistances.
  • a mean flow resistance means that the flow resistance is to be considered averaged over a period of time, wherein the time period may be in particular in a range of 1 to 100 seconds. This is particularly important when the throttle 7 is controlled such that it periodically changes its flow resistance.
  • the throttle 7 has in particular under ⁇ different flow resistance, if at least two different flow cross sections are adjustable, wherein the at least two flow cross sections are greater zero.
  • a flow cross-section greater than zero means that the throttle is open and a coolant flow with a positive volume flow is possible.
  • the evaporator and / or the condenser are supplied with a fan, one or, if appropriate, both of the fans can be operated at reduced power, as a result of which
  • Noise emissions can be reduced in total, at best at the expense of the overall efficiency of the cooling ⁇ device. Even if a higher compressor power is required to maintain the first mode of operation, may (depending on the type of construction of the compressor and fans) may lend a total clotting ⁇ Gere noise he will zi e. 11
  • the conditions of the cooling device can be further influenced by the operation of the compressor at different power levels, in particular at different speeds.
  • the pressure in different areas of the cooling device can be set specifically.
  • a higher pressure drop across the throttle combined with a higher temperature gradient at least at the evaporator to the refrigerator and / or the condenser to the environment to operate at least one fan at the condenser or evaporator slower.
  • the refrigerator may have a clock and switch between different operating modes depending on the time of day. This gives the advantage that e.g. at night, the cooling unit can be operated quieter.
  • the cooling device may further comprise an input element with which the user can switch the control between different operating modes. This allows the user as needed denjeni ⁇ gen mode select which emits for him he ⁇ portable noise emissions.
  • cooling device in the sense used here is to be understood as meaning a portable device having a refrigerator compartment which can be closed by a door.
  • the refrigerator may in particular be a refrigerator or a freezer.
  • the invention is used ⁇ cabinet at a cooling installation.
  • the STEU ⁇ augmentation is adapted to an average flow resistance of the throttle ⁇ stand in at least two modes of operation different set, or to operate the compressor in the modes of operation at least two different power levels.
  • the cooling device comprises at least one fan
  • the controller is configured to operate the compressor with less power in a first operating mode than in a second operating mode, and the at least one fan in the ers ⁇ th operation mode with more power to operate than in the second operating mode or the control is to be ⁇ staltet to set a lower average flow resistance of the throttle in the first operating mode than in the second operating mode and to operate the at least one fan in the first operation mode with more power than in the second operating mode.
  • Fig. 1 shows a schematic structure of theisserge ⁇ illers.
  • FIG. 1 shows in schematic form an embodiment of the invention with reference to a refrigerator for the refrigerated storage of food.
  • the cooling device 3-11 is configured in a known manner as a heat pump.
  • the heat pump comprises as main components a compressor 4, a condenser 5, an evaporator 6 and a throttle 7.
  • a coolant flows in shown Arrow direction counterclockwise between the four main components 4-7.
  • the condenser 5 is a Umge ⁇ ambient air fan 8 and the evaporator 6 a cooling air ⁇ ventilator 9 assigned.
  • the cooling air fan 9 supported by forced convection heat transfer from a cooling chamber 2 to the evaporator 6 and the ambient air fan 8 supports the heat transfer from the condenser ⁇ tor 5 to an environment.
  • the forced by the fans 8.9 air flow does not mix with the medium of the coolant circuit, but transfers the heat through heat exchangers.
  • the cooling air fan 9 conveys the cooling chamber inside air to the evaporator 6, in which the heat is transferred via a heat exchanger to the coolant circuit, where ⁇ in the cooled air is transported back into the cooling chamber 2 ⁇ back.
  • the refrigerator door When the refrigerator door is closed, it is thus a closed cooling air circuit.
  • At least part of the waste heat of the heat pump is generate ⁇ ben at the condenser 5 by heat exchange.
  • the heat exchange is supported by the ambient air ventila tor 8, which sucks in air from the environment, promotes through the heat exchanger of the condenser and so ⁇ then gives back to the environment.
  • the cooling room 2 is an be ⁇ arbitrary space, whose temperature may be in the operating state in a specifi ⁇ ed by the design of the cooling device 1 of temperatures, and the temperature ⁇ structure is lower in the cooling chamber 2 than in the surroundings.
  • heat energy is transferred by the cooling device 3-11 from the refrigerator 2 into the environment.
  • the refrigerator has in the form of a refrigerator an operation ⁇ temperature in the positive range (> 0 ° C), especially within the typical operating temperature range of 0 ° C - 8 ° C. If the refrigerator is used as a freezer, the temperature is in the negative range ( ⁇ 0 ° C), especially inside half from -30 ° C to 0 ° C.
  • the Schränkge can ⁇ advises more than one refrigerator and / or freezer room umfas ⁇ sen.
  • the refrigerator can also be, for example, a storage cabinet for wines, the refrigerator is cooled to a temperature between 5 ° C and 20 ° C.
  • a controller 3 of the refrigerator 1 has min ⁇ least two modes of operation which are different for the same cooling capacity in their noise.
  • the controller 3 has at least two operation modes, which are different for the same boundary conditions, insbeson ⁇ particular with the same cooling target room temperature and the same ambient temperatures in their cooling capacity.
  • the controller 3 has at least one input parameter. Input parameters can be formed by the controller 3 itself, eg by its software, or by external components 10, 11. Depending on the input parameters, the controller can select the appropriate Be ⁇ operating mode.
  • the clock 10 indicates the time of day as an input parameter.
  • the controller may select in Depending ⁇ ness time of day one of the at least two modes of operation, so that the cooling unit 1 is driven with a quieter operation mode and a day with a fair mode of operation, for example during the night.
  • the controller 3 may further include an input element 11, whereby the user can directly influence the operation of the refrigerator 1.
  • the entranc ⁇ beelement can thereby be designed in any form.
  • the user can toggle through the input ⁇ element 11 between the operating modes and forth, or, for example, a desired maximum decibel pre ⁇ ben, after which the controller automatically selects the appropriate operation mode.
  • the controller can influence the noise emissions of the cooling device are various ⁇ dene options.
  • the associated to the evaporator 6 and the capacitor 5 fans 8 and 9 are the noisiest component of the cooling device and the control of the cooling device, influenced such that the at least two Be ⁇ triebsmodi same cooling output Fans are driven at different speeds. This implies that the compressor can be operated more quietly compared to the fans, and a change in the compressor power has less effect on the total noise emissions ⁇ .
  • the controller can operate the compressor to under ⁇ retired union power levels. If, for example, the compressor is operated with less power than in the second mode in a first mode of operation, the second operating mode results in a greater coolant flow and thus a greater pressure drop across the throttle 7. The greater pressure drop across the throttle 7 leads to a greater pressure difference and thus to a greater Tempe ⁇ raturdifferenz between the condenser 5 and evaporator 6. This usually leads to a larger Temperaturdif ⁇ ference between the environment and the condenser 5 and / o ⁇ the refrigerator 2 and the evaporator 6, why the fans 8.9 can be operated at a lower power. Considering that the fans 8,9 are noisy in comparison to the compressor 4, erge ⁇ ben in the second operating mode holistically less noise emissions.
  • the control of the compressor power and the flow resistance of the throttle 7 can be influenced such that between capacitor 5 and evaporator 6 results in a larger pressure difference and thus a larger temperature difference.
  • Different flow resistances can be generated, for example by changing the flow cross section, or in the case of serially arranged capillary tubes by bridging individual ones Capillary tubes, or by periodic opening and
  • the cooling device may comprise a plurality of nickel ⁇ pen and / or at least one Peltier element.
  • Peltier element compared to pumps less efficient, but operates with lower noise, heat pumps and Peltier element can be combined in a hybrid cooling device, so that the refrigerator in the quiet operation mode min ⁇ least partially through the Peltier element and loud operating mode is cooled by the heat pump.
  • a reciprocating compressor as compressor 4 question or the throttle 7 may be formed in particular as Expansi ⁇ onsventil or as a capillary tube.
  • the heat pump in addition to a heat exchanger to transfer heat between the leaking from the condenser cooling medium and the leaking from the evaporator cooling medium. This heat exchange leads to a Effi ciency ⁇ the heat pump.
  • the controller may have at least one microphone which measures an acoustic value of the environment of the refrigerator 1 and switches depending on the measured acoustic value between different operating modes.
  • the controller may be designed in such a way from ⁇ that in a measured by the at least one microphone quiet environment, the cooling unit 1 in quiet operating mode is operated while in a noisy environment, the refrigerator 1 is operated in the loud operating mode.
  • the controller switches between the at least two operating modes as soon as the measured acoustic value exceeds or falls below a threshold value.

Abstract

In order to be able to adjust the noise emissions of a cooling appliance (1), particularly a refrigerator, according to requirements, a control system (3) of a cooling device (3-11) has a plurality of operational modes, at least two operational modes differing in terms of their noise emissions while at the same cooling power. In a heat pump (3-11), for example, the flow resistance of a throttle valve (7) or the power level of a compressor (4) are influenced in said at least two operational modes.

Description

Kühlgerät mit wählbaren Geräuschemissionen  Cooling unit with selectable noise emissions
Gebiet der Erfindung Field of the invention
Die Erfindung betrifft ein Kühlgerät zur gekühlten Aufbewahrung von Lebensmitteln, insbesondere einen Kühlschrank, mit mindestens einem Kühlraum, einer ein Geräusch erzeugenden Kühlvorrichtung und einer Steuerung zum Steuern der Kühlvorrichtung. The invention relates to a refrigerator for refrigerated storage of food, in particular a refrigerator, with at least one refrigerator, a noise-generating cooling device and a controller for controlling the cooling device.
Hintergrund background
Kühlgeräte zur gekühlten Aufbewahrung von Le- bensmitteln mit einer Geräusch erzeugenden Kühlvorrichtung sind bekannt, insbesondere in Form von Kühlschränken oder Tiefkühlgeräten . Cooling devices for the refrigerated storage of foodstuffs with a noise-generating cooling device are known, in particular in the form of refrigerators or freezers.
Solche Kühlgeräte bedürfen einer besonderen Ausgestaltung, um hohe Geräuschemissionen gegenüber der Umgebung zu vermeiden. Obwohl dem Problem der Geräuschemissionen durch Schalldämmplatten begegnet werden kann, geht diese Lösung auf Kosten des Nutzvolumens. Gleiches gilt bei einer besseren thermischen Isolation, damit die Kühlvorrichtung auf einem durchschnittlich tieferen Leis- tungsniveau betrieben werden kann.  Such refrigerators require a special design to avoid high noise emissions to the environment. Although the problem of noise emissions can be countered by sound insulation panels, this solution comes at the expense of the useful volume. The same applies to better thermal insulation, so that the cooling device can be operated at an average lower power level.
Ferner bekannt ist die Verwendung von geräuschärmeren Kühlvorrichtungen, beispielsweise mit vib¬ rationsreduzierten Bauteilen, was sich allerdings in höheren Kosten niederschlägt. Also known is the use of quieter cooling devices, for example, with vib ¬ rationsreduzierten components, which, however, reflected in higher costs.
Darstellung der Erfindung Presentation of the invention
Es ist Aufgabe der vorliegenden Erfindung, Kühlgeräte zur gekühlten Aufbewahrung von Lebensmitteln bereitzustellen, welche der Geräuschproblematik besser Rechnung tragen . Diese Aufgabe wird vom Kühlgerät gemäss Anspruch 1 gelöst. Demgemäss besitzt die Steuerung mehrere Betriebsmodi, zwischen denen umgeschaltet werden kann. Mindestens zwei Betriebsmodi unterscheiden sich dadurch, dass sie bei gleicher durch die Kühlvorrichtung zu erbringender Kühlleistung unterschiedliche Geräuschemissionen abgeben. Die Kühlleistung gibt dabei an, wieviel Wär¬ meenergie je Zeiteinheit vom Kühlraum abgeführt wird. It is an object of the present invention to provide refrigerators for refrigerated storage of food, which better take into account the noise problem. This object is achieved by the cooling device according to claim 1. Accordingly, the controller has multiple operation modes to switch between. At least two operating modes differ in that they deliver different noise emissions with the same cooling power to be provided by the cooling device. The cooling capacity indicates there how much Were ¬ meenergie per unit time discharged from the refrigerator.
Bei bekannten Lösungen hängen die Geräusche- missionen von derartigen Kühlgeräten im Wesentlichen von der Kühlleistung ab, welche durch die Kühlvorrichtung erbracht wird. Die Kühlleistung stellt sich aufgrund der durch den Benutzer nicht oder kaum beeinflussbaren Umgebungsbedingungen ein. Im Gegensatz dazu kann die Steue- rung des vorliegenden Kühlgeräts bei gleicher Kühlleistung, durch die Wahl des Betriebsmodus, die Geräuschemis¬ sionen beeinflussen. Dies ermöglicht, dass die Steuerung beispielsweise in Abhängigkeit eines Inputparameters die Geräuschemissionen unterschiedlich wählen kann. Der In- putparameter gibt dabei Auskunft darüber, welche Art von Geräuschemissionen zu einer bestimmten Zeitperiode tole¬ rierbar oder für die Umgebung nicht störend ist. Geräuschemissionen können sich dabei in verschiedenen Geräuschmerkmalen unterscheiden, insbesondere dem Schall- druckpegel oder der Frequenz. Beispielsweise kann dasIn known solutions, the noise emissions from such cooling devices depend essentially on the cooling capacity which is provided by the cooling device. The cooling performance is due to the user or hardly influenced by the ambient conditions. In contrast, the control of the present cooling device with the same cooling capacity, by the choice of the operating mode, the noise ¬ sions influence. This allows the controller to select the noise emissions differently depending on an input parameter, for example. The home putparameter are here tells you what kind of noise emissions to a certain period of time is not disturbing tole ¬ gurable or environmental hazards. Noise emissions may differ in different noise characteristics, in particular the sound pressure level or the frequency. For example, that can
Kühlgerät während einer Zeitperiode laut, dafür aber mit einem vergleichsweise besseren Wirkungsgrad und deshalb mit niedrigem Energiebedarf betrieben werden, während in einer anderen Zeitperiode die Lautstärke nach Bedarf re- duziert werden kann und sich dies in einem höheren Ener¬ giebedarf niederschlägt. Zwischen den Betriebsmodi kann insbesondere während laufendem Betrieb umgeschaltet werden . Cooling unit during a time period according to, but are at a relatively higher efficiency and therefore operated with low energy consumption, while can be the volume required re- duced in a different time period and this is reflected in a higher Ener ¬ energy requirement. Between the operating modes can be switched in particular during operation.
Die Kühlvorrichtung des Kühlgeräts kann eine Wärmepumpe aufweisen, wobei die Wärmepumpe mindestens aus einem Kompressor, einem Kondensator, einem Verdampfer und einer Drossel besteht . Weiter kann die Wärmepumpe eine Drossel auf¬ weisen, welche mindestens zwei unterschiedliche, mittlere Strömungswiderstände bilden kann. Ein mittlerer Strömungswiderstand bedeutet, dass der Strömungswiderstand über eine Zeitperiode gemittelt zu betrachten ist, wobei die Zeitperiode insbesondere in einem Bereich von 1 bis 100 Sekunden liegen kann. Dies ist insbesondere dann von Bedeutung, wenn die Drossel 7 derart angesteuert wird, dass sie periodisch ihren Strömungswiderstand ändert. The cooling device of the cooling device may have a heat pump, wherein the heat pump consists of at least one compressor, a condenser, an evaporator and a throttle. Next, the heat pump may have a throttle on ¬ which can form at least two different average flow resistances. A mean flow resistance means that the flow resistance is to be considered averaged over a period of time, wherein the time period may be in particular in a range of 1 to 100 seconds. This is particularly important when the throttle 7 is controlled such that it periodically changes its flow resistance.
Die Drossel 7 weist insbesondere dann unter¬ schiedliche Strömungswiderstände auf, wenn mindestens zwei unterschiedliche Strömungsquerschnitte einstellbar sind, wobei die mindestens zwei Strömungsquerschnitte grösser Null sind. Ein Strömungsquerschnitt grösser Null bedeutet, dass die Drossel offen und ein Kühlmitteldurch- fluss mit einem positiven Volumenstrom möglich ist. The throttle 7 has in particular under ¬ different flow resistance, if at least two different flow cross sections are adjustable, wherein the at least two flow cross sections are greater zero. A flow cross-section greater than zero means that the throttle is open and a coolant flow with a positive volume flow is possible.
Ist beispielsweise in einem ersten der beiden Betriebsmodi der (mittlere) Strömungswiderstand der Drossel kleiner als im zweiten, ergibt sich im ersten Be- triebsmodus (bei gleichem Volumenstrom) ein höherer If, for example, in a first of the two operating modes, the (average) flow resistance of the throttle is smaller than in the second, the result is a higher one in the first operating mode (with the same volume flow)
Druckabfall über der Drossel und somit ein höherer Tempe¬ raturunterschied zwischen Verdampfer und Kondensator. Dies führt in der Regel zu einem grösseren Temperaturun¬ terschied zwischen der Umgebung und dem Kondensator und/oder dem Kühlraum und dem Verdampfer. Pressure drop across the throttle and thus a higher Tempe ¬ raturunterschied between evaporator and condenser. This usually leads to a larger Temperaturun ¬ terschied between the surroundings and the condenser and / or the cooling chamber and the evaporator.
Wird nun beispielsweise der Verdampfer und/oder der Kondensator mit einem Ventilator angeströmt, so kann einer oder gegebenenfalls beide der Ventilatoren mit reduzierter Leistung betrieben werden, wodurch die  If, for example, the evaporator and / or the condenser are supplied with a fan, one or, if appropriate, both of the fans can be operated at reduced power, as a result of which
Lärmemissionen gesamtheitlich reduziert werden können, allenfalls auf Kosten des Gesamtwirkungsgrades der Kühl¬ vorrichtung. Selbst wenn zur Aufrechterhaltung des ersten Betriebsmodus eine höhere Kompressorleistung erforderlich ist , kann (je nach Konstruktionsart von Kompressor und Ventilatoren) unter Umständen eine gesamtheitlieh gerin¬ gere Lärmbelastung er zi e 11 werden . Nebst der Möglichkeit, den Strömungsquerschnitt der Drossel zu verändern, können die Verhältnisse der Kühlvorrichtung weiter durch den Betrieb des Kompressors auf unterschiedlichen Leistungsstufen, insbesondere mit unterschiedlichen Drehzahlen, beeinflusst werden. Noise emissions can be reduced in total, at best at the expense of the overall efficiency of the cooling ¬ device. Even if a higher compressor power is required to maintain the first mode of operation, may (depending on the type of construction of the compressor and fans) may lend a total clotting ¬ Gere noise he will zi e. 11 In addition to the possibility of changing the flow cross-section of the throttle, the conditions of the cooling device can be further influenced by the operation of the compressor at different power levels, in particular at different speeds.
Durch die genannten Einflussmöglichkeiten kann der Druck in verschiedenen Bereichen der Kühlvorrichtung gezielt eingestellt werden. Dabei erlaubt ein höherer Druckabfall über die Drossel, verbunden mit einem höheren Temperaturgradienten mindestens am Verdampfer zum Kühlraum und/oder am Kondensator zur Umgebung, mindestens einen Ventilator beim Kondensator oder beim Verdampfer langsamer zu betreiben.  Due to the above influence options, the pressure in different areas of the cooling device can be set specifically. In this case, a higher pressure drop across the throttle, combined with a higher temperature gradient at least at the evaporator to the refrigerator and / or the condenser to the environment to operate at least one fan at the condenser or evaporator slower.
Dieser ermöglicht, dass die Steuerung denje- nigen Betriebsmodus auswählen kann, welcher am effizien¬ testen arbeitet, aber doch noch tolerierbare Geräusche¬ missionen von sich gibt. This allows the controller to select denje- Nigen operation mode that operates the test efficien ¬, but is still tolerable noise ¬ missions on its own.
Weiter kann das Kühlgerät eine Uhr aufweisen und abhängig von der Tageszeit zwischen unterschiedlichen Betriebsmodi umschalten. Dies ergibt den Vorteil, dass z.B. nachts das Kühlgerät leiser betrieben werden kann.  Further, the refrigerator may have a clock and switch between different operating modes depending on the time of day. This gives the advantage that e.g. at night, the cooling unit can be operated quieter.
Das Kühlgerät kann weiter ein Eingabeelement aufweisen, mit welchem durch den Benutzer die Steuerung zwischen unterschiedlichen Betriebsmodi umgeschaltet wer- den kann. Dies erlaubt dem Benutzer nach Bedarf denjeni¬ gen Betriebsmodus auszuwählen, welcher die für ihn er¬ tragbaren Geräuschemissionen abgibt. The cooling device may further comprise an input element with which the user can switch the control between different operating modes. This allows the user as needed denjeni ¬ gen mode select which emits for him he ¬ portable noise emissions.
Unter einem „Kühlgerät" im hier verwendeten Sinne ist ein portables Gerät mit einem über eine Türe verschliessbaren Kühlraum zu verstehen. Die Türe kann an einer Seitenwand oder an der Decke des Geräts angeordnet sein .  A "cooling device" in the sense used here is to be understood as meaning a portable device having a refrigerator compartment which can be closed by a door.
Beim Kühlgerät kann es sich insbesondere um einen Kühlschrank oder ein Tiefkühlgerät handeln . Beson- ders vorteilhaft wird die Erfindung bei einem Einbaukühl¬ schrank eingesetzt . In einer bevorzugten Ausführung ist die Steu¬ erung dazu ausgestaltet, einen mittleren Strömungswider¬ stand der Drossel in den mindestens zwei Betriebsmodi unterschiedlich einzustellen, oder den Kompressor in den mindestens zwei Betriebsmodi auf unterschiedlichen Leistungsstufen zu betreiben. The refrigerator may in particular be a refrigerator or a freezer. Particularly advantageously, the invention is used ¬ cabinet at a cooling installation. In a preferred embodiment, the STEU ¬ augmentation is adapted to an average flow resistance of the throttle ¬ stand in at least two modes of operation different set, or to operate the compressor in the modes of operation at least two different power levels.
Bevorzugt weist die Kühlvorrichtung mindestens einen Ventilator auf und die Steuerung ist dazu ausgestaltet, in einem ersten Betriebsmodus den Kompressor mit weniger Leistung zu betreiben als in einem zweiten Betriebsmodus und den mindestens einen Ventilator im ers¬ ten Betriebsmodus mit mehr Leistung zu betreiben als im zweiten Betriebsmodus oder die Steuerung ist dazu ausge¬ staltet, im ersten Betriebsmodus einen geringeren mittleren Strömungswiderstand der Drossel einzustellen als im zweiten Betriebsmodus und den mindestens einen Ventilator im ersten Betriebsmodus mit mehr Leistung zu betreiben als im zweiten Betriebsmodus. Preferably, the cooling device comprises at least one fan, and the controller is configured to operate the compressor with less power in a first operating mode than in a second operating mode, and the at least one fan in the ers ¬ th operation mode with more power to operate than in the second operating mode or the control is to be ¬ staltet to set a lower average flow resistance of the throttle in the first operating mode than in the second operating mode and to operate the at least one fan in the first operation mode with more power than in the second operating mode.
Kurze Beschreibung der Zeichnung Short description of the drawing
Weitere Ausgestaltungen, Vorteile und Anwendungen der Erfindung ergeben sich aus den abhängigen An¬ sprüchen und aus der nun folgenden Beschreibung anhand der Figur. Dabei zeigt: Further embodiments, advantages and applications of the invention will become apparent from the dependent An ¬ claims and from the following description with reference to the figure. Showing:
Fig. 1 einen schematischen Aufbau des Kühlge¬ räts . Fig. 1 shows a schematic structure of the Kühlge ¬ räts.
Wege zur Ausführung der Erfindung Ways to carry out the invention
Figur 1 zeigt in schematischer Form ein Ausführungsbeispiel der Erfindung anhand eines Kühlschranks zur gekühlten Aufbewahrung von Nahrungsmitteln. Die Kühlvorrichtung 3-11 ist in bekannter Weise als Wärmepumpe ausgestaltet. Die Wärmepumpe umfasst als Hauptkomponenten einen Kompressor 4, einen Kondensator 5, einen Verdampfer 6 und eine Drossel 7. Ein Kühlmittel fliesst in gezeigter Pfeilrichtung im Gegenuhrzeigersinn zwischen den vier Hauptkomponenten 4-7. Dem Kondensator 5 ist ein Umge¬ bungsluftventilator 8 und dem Verdampfer 6 ein Kühlluft¬ ventilator 9 zugeordnet. Der Kühlluftventilator 9 unter- stützt durch erzwungene Konvektion den Wärmetransfer von einem Kühlraum 2 zum Verdampfer 6 und der Umgebungsluftventilator 8 unterstützt den Wärmetransfer vom Kondensa¬ tor 5 zu einer Umgebung. Der durch die Ventilatoren 8,9 erzwungene Luftstrom vermischt sich dabei nicht mit dem Medium des Kühlmittelkreislaufs, sondern überträgt die Wärme über Wärmetauscher. Figure 1 shows in schematic form an embodiment of the invention with reference to a refrigerator for the refrigerated storage of food. The cooling device 3-11 is configured in a known manner as a heat pump. The heat pump comprises as main components a compressor 4, a condenser 5, an evaporator 6 and a throttle 7. A coolant flows in shown Arrow direction counterclockwise between the four main components 4-7. The condenser 5 is a Umge ¬ ambient air fan 8 and the evaporator 6 a cooling air ¬ ventilator 9 assigned. The cooling air fan 9 supported by forced convection heat transfer from a cooling chamber 2 to the evaporator 6 and the ambient air fan 8 supports the heat transfer from the condenser ¬ tor 5 to an environment. The forced by the fans 8.9 air flow does not mix with the medium of the coolant circuit, but transfers the heat through heat exchangers.
In der vorliegenden Ausführung der Erfindung befördert der Kühlluftventilator 9 die Kühlrauminnenluft zum Verdampfer 6, bei welchem die Wärme über einen Wärme- tauscher auf den Kühlmittelkreislauf übertragen wird, wo¬ bei die abgekühlte Luft wieder in den Kühlraum 2 zurück¬ befördert wird. Bei geschlossener Kühlschranktüre handelt es sich somit um einen geschlossen Kühlluftkreislauf. Mindestens ein Teil der Abwärme der Wärmepumpe wird beim Kondensator 5 durch Wärmetausch an die Umgebung abgege¬ ben. Der Wärmetausch wird durch den Umgebungsluftventila¬ tor 8 unterstützt, der Luft von der Umgebung ansaugt, durch den Wärmetauscher des Kondensators fördert und so¬ dann wieder an die Umgebung abgibt. In the present embodiment of the invention, the cooling air fan 9 conveys the cooling chamber inside air to the evaporator 6, in which the heat is transferred via a heat exchanger to the coolant circuit, where ¬ in the cooled air is transported back into the cooling chamber 2 ¬ back. When the refrigerator door is closed, it is thus a closed cooling air circuit. At least part of the waste heat of the heat pump is abgege ¬ ben at the condenser 5 by heat exchange. The heat exchange is supported by the ambient air ventila tor 8, which sucks in air from the environment, promotes through the heat exchanger of the condenser and so ¬ then gives back to the environment.
Beim Kühlraum 2 handelt es sich um einen be¬ liebigen Raum, dessen Temperatur im Betriebszustand in einem durch die Ausgestaltung des Kühlgeräts 1 spezifi¬ zierten Temperaturbereich liegen kann, wobei die Tempera¬ tur im Kühlraum 2 niedriger ist als in der Umgebung. Zur Kühlung wird Wärmeenergie durch die Kühlvorrichtung 3-11 aus dem Kühlraum 2 in die Umgebung transferiert. Der Kühlraum weist in Form eines Kühlschrankes eine Betriebs¬ temperatur im positiven Bereich (> 0 °C) auf, insbesondere innerhalb des typischen Betriebstemperaturbereichs von 0 °C - 8 °C . Dient der Kühlraum als Tiefkühler ist die Temperatur im negativen Bereich (< 0 °C) , insbesondere inner- halb von -30°C bis 0°C. Insbesondere kann das Schränkge¬ rät mehr als einen Kühlraum und/oder Tiefkühlraum umfas¬ sen. Beim Kühlgerät kann es sich auch z.B. um einen Lagerschrank für Weine handeln, dessen Kühlraum auf eine Temperatur zwischen 5°C und 20°C gekühlt wird. In the cooling room 2 is an be ¬ arbitrary space, whose temperature may be in the operating state in a specifi ¬ ed by the design of the cooling device 1 of temperatures, and the temperature ¬ structure is lower in the cooling chamber 2 than in the surroundings. For cooling, heat energy is transferred by the cooling device 3-11 from the refrigerator 2 into the environment. The refrigerator has in the form of a refrigerator an operation ¬ temperature in the positive range (> 0 ° C), especially within the typical operating temperature range of 0 ° C - 8 ° C. If the refrigerator is used as a freezer, the temperature is in the negative range (<0 ° C), especially inside half from -30 ° C to 0 ° C. In particular, the Schränkge can ¬ advises more than one refrigerator and / or freezer room umfas ¬ sen. The refrigerator can also be, for example, a storage cabinet for wines, the refrigerator is cooled to a temperature between 5 ° C and 20 ° C.
Eine Steuerung 3 des Kühlgeräts 1 weist min¬ destens zwei Betriebsmodi auf, welche sich bei gleicher Kühlleistung in ihren Geräuschemissionen unterscheiden. Somit besitzt die Steuerung 3 mindestens zwei Betriebs- modi, welche sich bei gleichen Randbedingungen, insbeson¬ dere bei gleichen Kühlraumsolltemperaturen und gleichen Umgebungstemperaturen in ihrer Kühlleistung unterscheiden . A controller 3 of the refrigerator 1 has min ¬ least two modes of operation which are different for the same cooling capacity in their noise. Thus, the controller 3 has at least two operation modes, which are different for the same boundary conditions, insbeson ¬ particular with the same cooling target room temperature and the same ambient temperatures in their cooling capacity.
Die Steuerung 3 besitzt mindestens einen In- putparameter . Inputparameter können durch die Steuerung 3 selbst, z.B. durch deren Software, gebildet werden, oder auch durch externe Komponenten 10,11. In Abhängigkeit der Inputparameter kann die Steuerung den geeigneten Be¬ triebsmodus auswählen. The controller 3 has at least one input parameter. Input parameters can be formed by the controller 3 itself, eg by its software, or by external components 10, 11. Depending on the input parameters, the controller can select the appropriate Be ¬ operating mode.
Beispielsweise gibt die Uhr 10 als Inputparameter die Tageszeit an. Die Steuerung kann in Abhängig¬ keit der Tageszeit einen der mindestens zwei Betriebsmodi auswählen, sodass beispielsweise während der Nacht das Kühlgerät 1 mit einem leiseren Betriebsmodus und am Tag mit einem lauteren Betriebsmodus gefahren wird. For example, the clock 10 indicates the time of day as an input parameter. The controller may select in Depending ¬ ness time of day one of the at least two modes of operation, so that the cooling unit 1 is driven with a quieter operation mode and a day with a fair mode of operation, for example during the night.
Die Steuerung 3 kann weiter ein Eingabeelement 11 aufweisen, wodurch der Benutzer auf den Betrieb des Kühlgeräts 1 direkt Einfluss nehmen kann. Das Einga¬ beelement kann dabei in beliebiger Form ausgestaltet sein. Beispielsweise kann der Benutzer über das Eingabe¬ element 11 zwischen den Betriebsmodi hin- und herwechseln oder z.B. einen gewünschten maximalen Dezibelwert vorge¬ ben, wonach die Steuerung automatisch den passenden Betriebsmodus auswählt . The controller 3 may further include an input element 11, whereby the user can directly influence the operation of the refrigerator 1. The entranc ¬ beelement can thereby be designed in any form. For example, the user can toggle through the input ¬ element 11 between the operating modes and forth, or, for example, a desired maximum decibel pre ¬ ben, after which the controller automatically selects the appropriate operation mode.
Damit die Steuerung die Geräuschemissionen der Kühlvorrichtung beeinflussen kann, stehen verschie¬ dene Möglichkeiten zur Verfügung . Bei der vorliegenden Ausführung der Erfindung wird davon ausgegangen, dass die zu dem Verdampfer 6 und dem Kondensator 5 zugehörigen Ventilatoren 8 und 9 die lärmintensivsten Bauteile der Kühlvorrichtung sind und die Steuerung die Kühlvorrich- tung derart beeinflusst, dass bei den mindestens zwei Be¬ triebsmodi bei gleicher Kühlleistung die Ventilatoren mit unterschiedlicher Drehzahl gefahren werden. Dies impliziert, dass der Kompressor im Vergleich zu den Ventilatoren ruhiger betrieben werden kann, und eine Änderung der Kompressorleistung geringere Auswirkungen auf die gesamt¬ haften Geräuschemissionen hat. So that the controller can influence the noise emissions of the cooling device are various ¬ dene options. At the present Embodiment of the invention, it is assumed that the associated to the evaporator 6 and the capacitor 5 fans 8 and 9 are the noisiest component of the cooling device and the control of the cooling device, influenced such that the at least two Be ¬ triebsmodi same cooling output Fans are driven at different speeds. This implies that the compressor can be operated more quietly compared to the fans, and a change in the compressor power has less effect on the total noise emissions ¬ .
Die Steuerung kann den Kompressor auf unter¬ schiedlichen Leistungsstufen betreiben. Wird beispielsweise in einem ersten Betriebsmodus, bei gleichbleibendem Drosselwiderstand, der Kompressor mit weniger Leistung betrieben als im zweiten, so ergibt sich im zweiten Betriebsmodus ein grösserer Kühlmitteldurchfluss und somit ein grösserer Druckabfall über die Drossel 7. Der grössere Druckabfall über die Drossel 7 führt zu einer grös- seren Druckdifferenz und somit zu einer grösseren Tempe¬ raturdifferenz zwischen Kondensator 5 und Verdampfer 6. Dies führt in der Regel zu einer grösseren Temperaturdif¬ ferenz zwischen der Umgebung und dem Kondensator 5 und/o¬ der dem Kühlraum 2 und dem Verdampfer 6, weshalb die Ven- tilatoren 8,9 mit einer geringeren Leistung betrieben werden können. In Anbetracht, dass die Ventilatoren 8,9 im Vergleich zum Kompressor 4 lärmintensiver sind, erge¬ ben sich im zweiten Betriebsmodus gesamtheitlich weniger Lärmemissionen. The controller can operate the compressor to under ¬ retired union power levels. If, for example, the compressor is operated with less power than in the second mode in a first mode of operation, the second operating mode results in a greater coolant flow and thus a greater pressure drop across the throttle 7. The greater pressure drop across the throttle 7 leads to a greater pressure difference and thus to a greater Tempe ¬ raturdifferenz between the condenser 5 and evaporator 6. This usually leads to a larger Temperaturdif ¬ ference between the environment and the condenser 5 and / o ¬ the refrigerator 2 and the evaporator 6, why the fans 8.9 can be operated at a lower power. Considering that the fans 8,9 are noisy in comparison to the compressor 4, erge ¬ ben in the second operating mode holistically less noise emissions.
Nebst der Steuerung der Kompressorleistung kann auch der Strömungswiderstand der Drossel 7 derart beeinflusst werden, dass sich zwischen Kondensator 5 und Verdampfer 6 ein grösserer Druckunterschied und somit eine grössere Temperaturdifferenz ergibt. Unterschiedli- che Strömungswiderstände können erzeugt werden z.B. durch Veränderung des Strömungsquerschnitts, oder bei seriell angeordneten Kapillarrohren durch Überbrückung einzelner Kapillarrohre, oder durch periodisches Öffnen und In addition to the control of the compressor power and the flow resistance of the throttle 7 can be influenced such that between capacitor 5 and evaporator 6 results in a larger pressure difference and thus a larger temperature difference. Different flow resistances can be generated, for example by changing the flow cross section, or in the case of serially arranged capillary tubes by bridging individual ones Capillary tubes, or by periodic opening and
Schliessen der Drossel. Close the throttle.
Varianten/Bemerkungen Variants / notes
Die oben dargestellte Ausführung der Erfindung, stellt lediglich eine spezifische Ausführungsform dar. Im Folgenden werden in einer nicht abschliessenden Aufzählung beispielhaft Abwandlungen des Kühlgeräts aufgezeigt :  The embodiment of the invention shown above represents only one specific embodiment. In the following, by way of example, modifications of the cooling device are shown in a non-exhaustive list:
- Die Kühlvorrichtung kann mehrere Wärmepum¬ pen und/oder mindestens ein Peltier-Element umfassen. - The cooling device may comprise a plurality of Wärmepum ¬ pen and / or at least one Peltier element.
Während das Peltier-Element im Vergleich zu Wärmepumpen weniger effizient, aber dafür mit geringeren Geräuschemissionen arbeitet, können Wärmepumpen und Pel- tier-Element in einer Hybridkühlvorrichtung kombiniert werden, sodass der Kühlraum im leisen Betriebsmodus min¬ destens teilweise durch das Peltier-Element und im lauten Betriebsmodus durch die Wärmepumpe gekühlt wird. While the Peltier element, compared to pumps less efficient, but operates with lower noise, heat pumps and Peltier element can be combined in a hybrid cooling device, so that the refrigerator in the quiet operation mode min ¬ least partially through the Peltier element and loud operating mode is cooled by the heat pump.
- Für die genannten Bestandteile der Wärme- pumpe sind unterschiedliche Ausführungen denkbar, wobei insbesondere ein Kolbenverdichter als Kompressor 4 in- frage kommt oder die Drossel 7 insbesondere als Expansi¬ onsventil oder als Kapillarrohr ausgebildet sein kann. - For the above components of the heat pump different designs are conceivable, in particular a reciprocating compressor as compressor 4 question or the throttle 7 may be formed in particular as Expansi ¬ onsventil or as a capillary tube.
- In einer besonderen Ausführung weist die Wärmepumpe zusätzlich einen Wärmetauscher auf, um Wärme zwischen dem aus dem Kondensator ausgetretenen Kühlmedium und dem aus dem Verdampfer ausgetretenen Kühlmedium zu transferieren. Dieser Wärmetausch führt zu einer Effi¬ zienzsteigerung der Wärmepumpe. - In a particular embodiment, the heat pump in addition to a heat exchanger to transfer heat between the leaking from the condenser cooling medium and the leaking from the evaporator cooling medium. This heat exchange leads to a Effi ciency ¬ the heat pump.
- Als Inputparameter kann die Steuerung mindestens ein Mikrofon aufweisen, welches einen Akustikwert der Umgebung des Kühlgeräts 1 misst und in Abhängigkeit des gemessenen Akustikwertes zwischen unterschiedlichen Betriebsmodi umschaltet.  - As input parameters, the controller may have at least one microphone which measures an acoustic value of the environment of the refrigerator 1 and switches depending on the measured acoustic value between different operating modes.
Beispielsweise kann die Steuerung derart aus¬ gestaltet sein, dass in einer durch das mindestens eine Mikrofon gemessenen ruhigen Umgebung das Kühlgerät 1 im ruhigen Betriebsmodus betrieben wird, während in einer lauten Umgebung das Kühlgerät 1 im lauten Betriebsmodus betrieben wird. Die Steuerung schaltet zwischen den mindestens zwei Betriebsmodi hin- und her, sobald der gemes- sene Akustikwert einen Schwellwert über- oder unterschreitet . For example, the controller may be designed in such a way from ¬ that in a measured by the at least one microphone quiet environment, the cooling unit 1 in quiet operating mode is operated while in a noisy environment, the refrigerator 1 is operated in the loud operating mode. The controller switches between the at least two operating modes as soon as the measured acoustic value exceeds or falls below a threshold value.
Während in der vorliegenden Anmeldung bevorzugte Ausführungen der Erfindung beschrieben sind, ist klar darauf hinzuweisen, dass die Erfindung nicht auf diese beschränkt ist und in auch anderer Weise innerhalb des Umfangs der folgenden Ansprüche ausgeführt werden kann .  While preferred embodiments of the invention are described in the present application, it is to be understood that the invention is not limited thereto and may be embodied otherwise within the scope of the following claims.

Claims

Patentansprüche claims
1. Kühlgerät (1) zur gekühlten Aufbewahrung von Lebensmitteln, insbesondere Kühlschrank, mit mindes¬ tens einem Kühlraum (2), einer ein Geräusch erzeugende Kühlvorrichtung (3-11) und einer Steuerung (3) zum Steuern der Kühlvorrichtung (3-11), dadurch gekennzeichnet, dass die Steuerung (3) mehrere Betriebsmodi besitzt, wo¬ bei sich mindestens zwei Betriebsmodi bei gleicher Kühl¬ leistung in ihren Geräuschemissionen unterscheiden. 1. Cooling device (1) for refrigerated storage of foodstuffs, in particular refrigerator with Minim ¬ least one cooling chamber (2), a sound generating a cooling device (3-11) and a controller (3) for controlling the cooling device (3-11) , characterized in that the controller (3) has a plurality of operating modes, where ¬ differ in at least two operating modes at the same cooling ¬ power in their noise emissions.
2. Kühlgerät (1) nach Anspruch 1, mit einer Wärmepumpe (3-11) umfassend einen Kompressor (4), einen Kondensator (5), einen Verdampfer (6) und eine Drossel (7), insbesondere ein Expansionsventil oder ein Kapillar¬ rohr . Second cooling device (1) according to claim 1, comprising a heat pump (3-11) comprising a compressor (4), a condenser (5), an evaporator (6) and a throttle (7), in particular an expansion valve or a capillary ¬ pipe .
3. Kühlgerät (1) nach Anspruch 2, wobei die Steuerung (3) dazu ausgestaltet ist, einen mittleren Strömungswiderstand der Drossel (7) in den mindestens zwei Betriebsmodi unterschiedlich einzustellen. 3. The refrigerator (1) according to claim 2, wherein the controller (3) is configured to set a mean flow resistance of the throttle (7) in the at least two operating modes differently.
4. Kühlgerät (1) nach Anspruch 2 oder 3, wo¬ bei die Drossel (7) mindestens zwei Einstellungen aufweist, bei denen unterschiedliche Strömungsquerschnitte einstellbar sind, wobei die Strömungsquerschnitte grösser Null sind. 4. cooling device (1) according to claim 2 or 3, where ¬ at the throttle (7) has at least two settings in which different flow cross sections are adjustable, wherein the flow cross sections are greater than zero.
5. Kühlgerät (1) nach einem der Ansprüche 2 bis 4, wobei die Steuerung (3) dazu ausgestaltet ist, den Kompressor (4) in den mindestens zwei Betriebsmodi auf unterschiedlichen Leistungsstufen zu betreiben. 5. Cooling device (1) according to one of claims 2 to 4, wherein the controller (3) is adapted to operate the compressor (4) in the at least two operating modes at different power levels.
6. Kühlgerät (1) nach einem der Ansprüche 2 bis 5, wobei die mindestens zwei Betriebsmodi zwischen Kondensator (5) und Verdampfer (6) unterschiedliche Temperaturdifferenzen aufweisen. 6. Cooling device (1) according to one of claims 2 to 5, wherein the at least two operating modes between the condenser (5) and evaporator (6) have different temperature differences.
7. Kühlgerät (1) nach einem der vorangehenden Ansprüche, wobei die Kühlvorrichtung (3-11) mindestens einen Ventilator (8,9) aufweist, wobei die Steuerung (3) dazu ausgestaltet ist, den Ventilator (8,9) in den mindestens zwei Betriebsmodi mit unterschiedlichen Drehzah¬ len zu betreiben. 7. The refrigerator (1) according to any one of the preceding claims, wherein the cooling device (3-11) at least one fan (8,9), wherein the controller (3) is adapted to the fan (8,9) in the at least to run two operating modes with different speed ratings ¬ len.
8. Kühlgerät (1) nach Anspruch 7, wobei der mindestens eine Ventilator (8,9) ein Umgebungsluftventi¬ lator (8) zum Anströmen des Kondensators (5) mit Umge¬ bungsluft ist. 8. Cooling device (1) according to claim 7, wherein the at least one fan (8,9) is an ambient air ¬ lator (8) for flow of the condenser (5) with ambient ¬ ambient air.
9. Kühlgerät (1) nach Anspruch 7, wobei der mindestens eine Ventilator (8,9) ein Kühlluftventilator9. The refrigerator (1) according to claim 7, wherein the at least one fan (8,9) is a cooling air fan
(9) zum Anströmen des Verdampfers (6) zur Luft Zirkulation zwischen dem Kühlraum (2) und dem Verdampfer (6) ist. (9) for flowing the evaporator (6) to the air circulation between the cooling space (2) and the evaporator (6).
10. Kühlgerät (1) nach einem der vorangehenden Ansprüche, wobei die Steuerung (3) eine Uhr (10) auf weist und abhängig von der Tageszeit zwischen unter¬ schiedlichen Betriebsmodi umschaltet. 10. Cooling appliance (1) according to one of the preceding claims, wherein the controller (3) has a clock (10) and switches depending on the time of day between ¬ different operating modes.
11. Kühlgerät (1) nach einem der vorangehen¬ den Ansprüche, wobei die Steuerung ein Eingabeelement (11) aufweist, mit welchem durch den Benutzer die Steue¬ rung (3) zwischen unterschiedlichen Betriebsmodi um¬ schaltbar ist. 11. Cooling device (1) according to one of the preceding ¬ the claims, wherein the controller comprises an input element (11), with which by the user the Steue ¬ tion (3) between different operating modes to ¬ switchable.
12. Kühlgerät (1) nach einem der vorangehen¬ den Ansprüche, wobei sich die mindestens zwei Betriebsmodi bei gleichen Randbedingungen, insbesondere bei glei chen Kühlraumsolltemperaturen und bei gleichen Umgebungs temperaturen, in ihren Geräuschemissionen unterscheiden . 12. The cooling device (1) according to one of the preceding ¬ the claims, wherein the at least two operating modes at the same boundary conditions, especially in Chen Chen cold room target temperatures and at the same ambient temperatures, differ in their noise emissions.
13. Kühlgerät (1) nach einem der Ansprüche 2 bis 12 , wobei die Steuerung (3) dazu ausgestaltet ist , einen mittleren Strömungswiderstand der Drossel (7) in den mindestens zwei Betriebsmodi unterschiedlich einzustellen, oder den Kompressor (4) in den mindestens zwei Betriebsmodi auf unterschiedlichen Leistungsstufen zu be- treiben. 13. Cooling device (1) according to one of claims 2 to 12, wherein the controller (3) is designed to to set a mean flow resistance of the throttle (7) differently in the at least two operating modes, or to operate the compressor (4) in the at least two operating modes at different power levels.
14. Kühlgerät (1) nach einem der Ansprüche 2 bis 13, wobei die Kühlvorrichtung (3-11) mindestens einen Ventilator (8,9) aufweist und 14. The refrigerator (1) according to any one of claims 2 to 13, wherein the cooling device (3-11) has at least one fan (8,9) and
- die Steuerung (3) dazu ausgestaltet ist, in einem ersten Betriebsmodus den Kompressor (4) mit weniger Leistung zu betreiben als in einem zweiten Betriebsmodus und den mindestens einen Ventilator (8,9) im ersten Betriebsmodus mit mehr Leistung zu betreiben als im zweiten Betriebsmodus oder  - The controller (3) is adapted to operate in a first operating mode, the compressor (4) with less power than in a second operating mode and the at least one fan (8,9) in the first operating mode to operate with more power than in the second Operating mode or
- die Steuerung (3) dazu ausgestaltet ist, im ersten Betriebsmodus einen geringeren mittleren Strö¬ mungswiderstand der Drossel (7) einzustellen als im zwei¬ ten Betriebsmodus und den mindestens einen Ventilator (8,9) im ersten Betriebsmodus mit mehr Leistung zu be¬ treiben als im zweiten Betriebsmodus. - The controller (3) is configured to set in the first mode of operation a lower average Strö ¬ tion resistance of the throttle (7) than in the ¬ th operating mode and the at least one fan (8,9) in the first operating mode with more power to be ¬ drive as in the second operating mode.
EP15760077.6A 2014-09-08 2015-09-02 Cooling appliance with selectable noise emissions Active EP3191774B1 (en)

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DE102015016910A1 (en) * 2015-12-30 2017-07-06 Liebherr-Hausgeräte Ochsenhausen GmbH Fridge and / or freezer
DE102019114739A1 (en) * 2019-06-03 2020-12-03 Vaillant Gmbh Compressor fan management
CN114877614A (en) * 2022-06-07 2022-08-09 四川虹美智能科技有限公司 Control system and method for intelligent noise reduction refrigerator

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JP2001108339A (en) * 1999-10-01 2001-04-20 Matsushita Refrig Co Ltd Refrigerator with dehumidifying function
CN100498139C (en) * 2001-01-31 2009-06-10 三菱电机株式会社 Refrigerating circulation device
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CH710088A1 (en) 2016-03-15
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WO2016037293A1 (en) 2016-03-17
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