FR2617581A1 - Refrigerating installation for an appliance for deep freezing and preserving food products - Google Patents

Refrigerating installation for an appliance for deep freezing and preserving food products Download PDF

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Publication number
FR2617581A1
FR2617581A1 FR8709578A FR8709578A FR2617581A1 FR 2617581 A1 FR2617581 A1 FR 2617581A1 FR 8709578 A FR8709578 A FR 8709578A FR 8709578 A FR8709578 A FR 8709578A FR 2617581 A1 FR2617581 A1 FR 2617581A1
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installation according
deep freezing
compartment
temperature
freezing
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FR8709578A
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French (fr)
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FR2617581B1 (en
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HENRIOT JEAN LUC
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HENRIOT JEAN LUC
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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
    • 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
    • F25B49/022—Compressor control 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D13/00—Stationary devices, e.g. cold-rooms
    • F25D13/02—Stationary devices, e.g. cold-rooms with several cooling compartments, e.g. refrigerated locker systems
    • F25D13/04—Stationary devices, e.g. cold-rooms with several cooling compartments, e.g. refrigerated locker systems the compartments being at different temperatures
    • 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
    • F25B2400/07—Details of compressors or related parts
    • F25B2400/075—Details of compressors or related parts with parallel compressors
    • 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
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/30—Quick freezing

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

Refrigerating installation for an appliance for deep freezing and preserving food products composed of an insulating enclosure comprising at least one deep freezing compartment and at least one preservation compartment capable of being made to communicate or otherwise, the deep freezing compartment in particular being equipped with at least one evaporator and at least one fan, the evaporator/fan unit being secured to at least two motorised compressor units 9 and 10 automatically controlled by command and programming and temperature-regulating means able to trigger the two units 9 and 10 in the deep freezing phase corresponding to the maximum power and to trigger a single unit 10 in the preservation phase, in a regulated manner.

Description

Installation frigorifique pour un appareil de surgélation et de conservation de produits alimentaires. Refrigeration plant for a freezer and food preservation device.

L'invention se rattache au secteur technique des installations frigorifiques en général. The invention relates to the technical sector of refrigeration installations in general.

On connaît des appareils établis à partir d'une enceinte isolante et comprenant intérieurement au moins un compartiment de surgélation et généralement plusieurs compartiments de conservation, le ou les compartiments de surgélation et conservation étant susceptibles d'être mis en communication. De tels appareils ont pour but essentiel de surgeler dans un premier temps des produits alimentaires, à une température d'environ - 45"C, puis de les maintenir à une température d'environ - 20*C. On peut citer par exemple le
Brevet français 2.549.942 dont le demandeur est aussi titulaire.Devices are known established from an insulating enclosure and internally comprising at least one deep freezing compartment and generally several storage compartments, the freezing and storage compartment or compartments being capable of being placed in communication. The main purpose of such apparatus is to initially freeze food products at a temperature of about -45 ° C and then to maintain them at a temperature of about -20 ° C.
French patent 2,549,942 of which the applicant is also titular.

Pour cela, les produits sont placés dans le compartiment surgélation et y demeurent . jusqu'à ce que la température affichée soit atteinte d'une part, et qu'un temps de surgélation nécessaire aux produits considérés soit-écoulé.  For this, the products are placed in the freezer compartment and remain there. until the displayed temperature is reached on the one hand, and a freezing time necessary for the products in question has elapsed.

Dans cette phase, le compartiment de surgélation n'est pas en communication avec les compartiments de conservation.In this phase, the freezer compartment is not in communication with the storage compartments.

En fin de surgélation, les compartiments sont mis en communication, et les produits surgelés placés dans les compartiments de conservation pour être traversés par l'air déshumidifie en provenance du compartiment de surgélation en étant conservés à une température d'environ - 20'C. Cette température est affichée sur un thermostat par exemple pour remettre en route le groupe frigorifique auquel est assujetti l'appareil en vue du maintien de ladite température. At the end of freezing, the compartments are placed in communication, and the frozen products placed in the storage compartments to be traversed by dehumidified air from the freezer compartment being kept at a temperature of about -20'C. This temperature is displayed on a thermostat for example to restart the refrigeration unit which is subject to the device to maintain the temperature.

Compte tenu de ces dispositions, on conçoit qu'il est important d'obtenir la température de surgélation dans un temps réduit. Or, à ce jour, la puissance du compresseur équipant le groupe frigorifique est limitée suite à différents essais effectués pour ne pas altérer la qualité des produits notamment en phase de conservation. Généralement, la puissance rencontrée pour le compresseur est de 2,5 CU.  Given these provisions, it is understood that it is important to obtain the freezing temperature in a reduced time. However, to date, the power of the compressor equipping the refrigeration unit is limited following various tests carried out so as not to alter the quality of the products especially in the conservation phase. Generally, the power encountered for the compressor is 2.5 CU.

I1 est évident que si l'on double par exemple une telle puissance, la descente en température sera beaucoup plus rapide. A cet égard, on renvoie à la figure 1 qui montre deux courbes de descente en température en fonction du temps. La courbe < A > a été relevée avec un compresseur de 2,5 CV, tandis que la courbe (B) a été relevée avec un compresseur de 5 CV. Il apparaît qu'une température de - 40 C est atteinte pratiquement cinq f-ois plus rapidement avec le compresseur deux fois plus puissant. It is obvious that if, for example, such power is doubled, the temperature drop will be much faster. In this regard, reference is made to FIG. 1 which shows two temperature descent curves as a function of time. The <A> curve was taken with a 2.5 HP compressor, while the curve (B) was taken with a 5 HP compressor. It appears that a temperature of -40 C is reached almost five times faster with the compressor twice as powerful.

Cependant l'expérience et des essais ont montré que si l'on se contente de doubler la puissance du compresseur, des problèmes apparaissent alors au niveau de la qualité des produits en phase de conservation. I1 y a une surputssance par rapport au volume de refroidissement des produits à maintenir en conservation. Les produits sont désséchés. Une telle solution n'est donc pas acceptable. However experience and tests have shown that if we just double the power of the compressor, then problems appear in the quality of products in the conservation phase. There is an over-dependence on the cooling volume of the products to be kept in storage. The products are desiccated. Such a solution is therefore not acceptable.

Le problème étant ainsi posé, l'invention s'est fixée pour but, d'une manière simple, efficace et rationnelle, de concevoir une installation frigorifique qui permette, en phase de surgélation, de descendre très rapidement la température avec les résultats du type de ceux indiqués par la courbe (B) sans pour cela porter atteinte à la qualité des produits en phase de conservation. The problem being thus posed, the invention has set itself the goal, in a simple, efficient and rational way, of designing a refrigeration plant which, during freezing, enables the temperature to be lowered very rapidly with the results of the type of those indicated by the curve (B) without thereby undermining the quality of the products in the conservation phase.

Pour atteindre cet objectif, l'ensemble évaporateurventilateur est assujetti à au moins deux groupes moto compresseursfsservis par des moyens de commande et de programmatioqet de régulation de température aptes a assurer le déclenchement des deux groupes en phase de surgélation corregspondant à la puissance maximum et 'd'un seul groupe en phase de conservation, d'une manière régulée. To achieve this objective, the evaporator-ventilator assembly is subjected to at least two motor compressor units supplied by control and temperature regulation and programming means capable of ensuring the release of the two groups in freezing phase corregspondant to the maximum power and 'd only one group in the conservation phase, in a regulated manner.

D'autres caractéristiques ressortiront de la suite de la description.  Other characteristics will emerge from the rest of the description.

L'invention est exposée ci-après plus en détail à l'aide des dessins annexés donnés à titre d'exemple et dans lesquels
La figure 1 montre les courbes de température en fonction du temps selon deux puissances différentes du compresseur.The invention is described below in more detail with reference to the accompanying drawings given by way of example and in which
Figure 1 shows the temperature versus time curves according to two different powers of the compressor.

La figure 2 est une vue à caractère purement schématique d'une installation de surgélation et de conservation selon l'invention, ladite lnstallation étant représentée en phase de surgélation. Figure 2 is a purely schematic view of a deep freezing and storage facility according to the invention, said installation being represented in freezing phase.

La figure 3 est une vue correspondant à la figure 2 en phase de conservation. Figure 3 is a view corresponding to Figure 2 in the conservation phase.

La figure 4 est un schéma électrique du principe de fonctionnement de l'installation. Figure 4 is an electrical diagram of the operating principle of the installation.

Afin de rendre plus concret l'objet de l'invention, on le decrit maintenant d'une manière non limitative en se référant aux exemples de réalisation des figures des dessins. In order to make the object of the invention more concrete, it is now described in a nonlimiting manner with reference to the exemplary embodiments of the figures of the drawings.

L'appareil de surgélation et de conservation décrit et illustré est conforme à celui défini dans le Brevet 2.549.942 étant bien évident que l'invention s'applique a tous les types d'appreils susceptibles de remplir les mêmes fonctions avec des résultats spécifiques. The freezing and storage apparatus described and illustrated is in accordance with that defined in Patent No. 2,549,942, it being obvious that the invention is applicable to all types of devices capable of performing the same functions with specific results.

Pour une meilleure compréhension de la suite de la description, on rappelle que l'appareil désigné dans son ensemble par (C), comprend un compartiment. de surgélation (1) et généralement plusieurs compartiments de conservation (2). For a better understanding of the rest of the description, it is recalled that the apparatus designated as a whole by (C) comprises a compartment. freezing (1) and generally several storage compartments (2).

Des plaques ou grilles (3 > sont montées dans chacun de ces compartiments.Plates or grids (3> are mounted in each of these compartments.

Le compartiment de surgélation < 1) est séparé des autres compartiments de surgélation par une cloison étanche (4) avec des ouvertures (4a - 4b) susceptibles d'être obturées ou non a volonté par un système de volets (5) commandés automatiquement par tous moyens reliés à une minuterie (6) ou autre, pour être fermés en phase de surgélation et ouverts en phase de conservation.  The freezer compartment <1) is separated from the other freezer compartments by a bulkhead (4) with openings (4a - 4b) which can be closed or not at will by a system of shutters (5) automatically controlled by all means connected to a timer (6) or other, to be closed in freezing phase and open in the storage phase.

En partie haute du compartiment de surgélation (1) est place, d'une manière connue, un évaporateur (7) auquel est asservi un ventilateur (8). In the upper part of the freezer compartment (1) is placed, in a known manner, an evaporator (7) which is controlled by a fan (8).

Selon l'invention, l'ensemble évaporateur (7) ventilateur (8) est assujetti à deux groupes moto-compresseurs (9) et (10) installés à l'extérieur de l'appareil. La température est régulée par un thermostat (11). According to the invention, the evaporator assembly (7) fan (8) is subject to two motor-compressor units (9) and (10) installed outside the device. The temperature is regulated by a thermostat (11).

D'une manière importante, le compresseur (9) est directement asservi par la minuterie (6), tandis que le compresseur (10) est asservi directement ou non par le thermostat (11) (figure 4). A noter que les sondes, capteurs de pression, électrovannes et autres éléments nécessaires au bon fonctionnement de l'installation frigorifique ne sont pas décrits ni illustrés, car les fonctions et branchements sont parfaitement connus pour un homme de métier et ils ne concernent pas directement l'objet spécifique de l'invention. Importantly, the compressor (9) is directly controlled by the timer (6), while the compressor (10) is controlled directly or indirectly by the thermostat (11) (Figure 4). Note that probes, pressure sensors, solenoid valves and other elements necessary for the proper functioning of the refrigeration system are not described or illustrated, since the functions and connections are well known to a person skilled in the art and do not directly concern the user. specific object of the invention.

I1 convient d'analyser le fonctionnement
En phase surgélation, on affiche sur la mintuerie (6) une certaine durée fonction du type de produits. Les volets d'obturation (5) sont fermés (figure 2), de sorte que seul le compartiment (1) est soumis à l'action de l'évaporateur. Dans ce cas, compte tenu de l'état fermé de la minuterie, les deux compresseurs (9) et (10) sont alimentés, de sorte que l'installation est soumise à la puissance maximum. La température baisse rapidement pour atteindre généralement une température de l'ordre de-45 'C..It is necessary to analyze the functioning
In freezing phase, it displays on the mintuerie (6) a certain duration depending on the type of products. The shutters (5) are closed (Figure 2), so that only the compartment (1) is subjected to the action of the evaporator. In this case, given the closed state of the timer, the two compressors (9) and (10) are powered, so that the installation is subjected to the maximum power. The temperature drops rapidly, usually reaching a temperature of about -45 ° C.

Lorsque les degrés de température sont atteints et au bout du temps affiché par la minuterie, cette dernière change d'état et coupe de ce fait l'alimentation du compresseur (9 > . Le compresseur (10 > continue à tourner pendant un temps limité réduit tant que les pressions ne sont pas rétablies, puis s'arrête. La température de surgélation étant atteinte, la minuterie commande l'ouverture des volets pour mettre en communication les compartiments de conservation.  When the degrees of temperature are reached and at the end of the time displayed by the timer, the timer changes state and thereby cuts the power of the compressor (9> .The compressor (10> continues to rotate for a limited time limited as long as the pressures are not restored, then stops, the freezing temperature being reached, the timer controls the opening of the shutters to put in communication the storage compartments.

Les produits surgelés sont placés dans le compartiment de conservation. On affiche donc sur le thermostat (11) la température de conservation désirée soit par exemple 20'C. Le comrpesseur (9) ne fonctionne pas étant donné que la minuterie est à l'état ouvert et demeure dans cet état car en phase ' conservation, il n'est pas nécessaire de limiter la durée. Frozen products are placed in the storage compartment. So the thermostat (11) displays the desired storage temperature, for example 20 ° C. The controller (9) does not work because the timer is in the open state and remains in this state because in the storage phase, it is not necessary to limit the duration.

I1 en est de meme du compresseur (10) tant que la température régulée par le thermostat n'est pas atteinte. Par contre, dés que le seuil de température affichée est détecté, le thermostat procure un changement d'état pour permettre la commande du compresseur (10 > . I1 apparalt donc qu'en phase de conservation, la puissance est limitée à celle d'un seul des deux compresseurs. It is the same of the compressor (10) as the temperature regulated by the thermostat is not reached. On the other hand, as soon as the displayed temperature threshold is detected, the thermostat provides a change of state to allow the control of the compressor (10> .I1 therefore appears that in the conservation phase, the power is limited to that of a only two compressors.

Les compresseurs (9) et (10) ont des caractéristiques identiques. A titre d'exemple. indicatif, ils ont chacun une puissance de 2,5 CV. The compressors (9) and (10) have identical characteristics. For exemple. indicative, they each have a power of 2.5 hp.

On prévoit également de monter en parallèle sur les compresseurs (9) et (10) un inverseur pour pallier à un éventuel arrêt accidentel de l'un des compresseurs,. afin de pouvoir commuter les circuits d'alimentation pour qu'il y ait toujours au moins un groupe en fonctionnement. It is also planned to mount in parallel on the compressors (9) and (10) an inverter to overcome any accidental shutdown of one of the compressors. in order to be able to switch the supply circuits so that there is always at least one group in operation.

Les avantages ressortent bien de la description, en particulier on souligne
La descente rapide en température pour la phase de surgélation étant donné que la puissance fournie est maximum, les deux groupes compresseurs étant en fonctionnement sans pour cela latérer la qualité des produits en phase de conservation étant donné qu'un seul des deux groupes est en fonctionnement.The advantages are apparent from the description, in particular
The rapid descent in temperature for the deep freezing phase as the power supplied is maximum, the two compressor groups being in operation without thereby to delay the quality of the products in conservation phase since only one of the two groups is in operation .

I1 en résulte une économie d'énergie importante.  This results in significant energy savings.

Claims (7)

REVEBDICATIOBSREVEBDICATIOBS -1- Installation frigorifique pour un appareil de surgélation et de conservation de produits alimentaires, composé d'une.-1- Refrigerating plant for a freezer and food preservation apparatus, consisting of a. enceinte isolante comprenant au moins un compartiment deg surgélation et au moins un compartiment de conservation susceptibles d'être mis en communication ou non, le compartiment de surgélation notamment étant équipé d'au moins un évaporateur et d'au moins un ventilateur, caractérisée en ce.insulating enclosure comprising at least one deep-freeze compartment and at least one storage compartment that can be placed in communication or not, the freezing compartment in particular being equipped with at least one evaporator and at least one fan, characterized in that . que l'ensemble évaporateur-ventilateur est assujetti à au moins deux groupes moto-compresseurs (9) et (10) asservis par des moyens de commande et de programmation et de régulation de température aptes à assurer le déclenchement des deux groupes (9) et (10) en phase de surgélation correspondant à la puissance maximum et d'un seul groupe (10) en phase de conservation, d'une manière régulée.the evaporator-fan assembly is subjected to at least two motor-compressor units (9) and (10) controlled by control and programming and temperature control means capable of ensuring the tripping of the two groups (9) and (10) in freezing phase corresponding to the maximum power and a single group (10) in the storage phase, in a controlled manner. -2- Installation selon la revendication 1, caractérisée en ce que le moyen de commande et de programmation (6) est monté em série avec l'un des compresseurs (9).-2- Installation according to claim 1, characterized in that the control and programming means (6) is mounted in series with one of the compressors (9). -3- Installation selon la revendication 1, caractérisée en ce que le moyen de régulation de température (11) asservit directement ou non l'autre compresseur (10).-3- Installation according to claim 1, characterized in that the temperature control means (11) slaves directly or not the other compressor (10). -4- Installation selon la revendication 2, caractérisée en ce que le moyen de commande et de programmation (6) est ume mintuerie.-4- Installation according to claim 2, characterized in that the control and programming means (6) is ume mintuerie. -5- Installation selon la revendication 3, caractérisée en ce que le moyen de régulation de température < 11 > est ut thermostat. -5- Installation according to claim 3, characterized in that the temperature control means <11> is ut thermostat. -6- Installation selon la revendication 1* caractérisée en ce qu'un moyen de commutation est monté en parallèle sur les deux compresseurs (9) et (10).-6- Installation according to claim 1 * characterized in that a switching means is connected in parallel on the two compressors (9) and (10). -7- Installation selon la revendication 1, caractérisée en -ce que les deux compresseurs (9 > et (10) ont chacun la même puissance. -7- Installation according to claim 1, characterized in that the two compressors (9> and (10) each have the same power.
FR8709578A 1987-06-30 1987-06-30 REFRIGERATION SYSTEM FOR AN APPARATUS FOR FREEZING AND PRESERVING FOOD PRODUCTS Expired FR2617581B1 (en)

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FR8709578A FR2617581B1 (en) 1987-06-30 1987-06-30 REFRIGERATION SYSTEM FOR AN APPARATUS FOR FREEZING AND PRESERVING FOOD PRODUCTS

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FR8709578A FR2617581B1 (en) 1987-06-30 1987-06-30 REFRIGERATION SYSTEM FOR AN APPARATUS FOR FREEZING AND PRESERVING FOOD PRODUCTS

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2759157A1 (en) * 1997-02-05 1998-08-07 Ouakil Thierry Freezer cabinet with emergency intercommunication between compartments
WO2008077778A1 (en) * 2006-12-22 2008-07-03 BSH Bosch und Siemens Hausgeräte GmbH Refrigeration device and method for controlling a refrigeration device

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110500838B (en) * 2019-07-17 2020-12-22 浙江省海洋水产研究所 Low-temperature refrigerating cabin for fish catch of sea fishing boat

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FR2193184A1 (en) * 1972-07-17 1974-02-15 Westinghouse Electric Corp
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EP0086156A1 (en) * 1982-02-09 1983-08-17 Ets Bonnet Programmer for controlling a refrigeration plant with multiple compressors
FR2549942A1 (en) * 1983-07-26 1985-02-01 Henriot Jean Luc Installation for deep-freezing and for preserving foodstuffs.
US4633672A (en) * 1985-02-19 1987-01-06 Margaux Controls, Inc. Unequal compressor refrigeration control system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR826655A (en) * 1936-10-24 1938-04-06 Sulzer Ag Refrigeration installation comprising at least two compressors
DE761044C (en) * 1941-08-07 1951-01-29 Bergedorfer Eisenwerk A G Astr Switching arrangement for cooling systems with two compressors
DE1401480A1 (en) * 1962-08-16 1968-10-24 Bbc Brown Boveri & Cie Control device for the parallel operation of several machine sets
US3513662A (en) * 1968-11-12 1970-05-26 Armour & Co Feedback control system for sequencing motors
US3766745A (en) * 1970-03-16 1973-10-23 L Quick Refrigeration system with plural evaporator means
FR2193184A1 (en) * 1972-07-17 1974-02-15 Westinghouse Electric Corp
US3885938A (en) * 1974-01-18 1975-05-27 Westinghouse Electric Corp Refrigeration system with capacity control
WO1981000446A1 (en) * 1979-07-31 1981-02-19 R Alsenz Method and apparatus for controlling capacity of a multiple-stage cooling system
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FR2759157A1 (en) * 1997-02-05 1998-08-07 Ouakil Thierry Freezer cabinet with emergency intercommunication between compartments
WO2008077778A1 (en) * 2006-12-22 2008-07-03 BSH Bosch und Siemens Hausgeräte GmbH Refrigeration device and method for controlling a refrigeration device
CN101568778B (en) * 2006-12-22 2012-06-20 Bsh博世和西门子家用器具有限公司 Refrigeration device and method for controlling a refrigeration device
RU2465522C2 (en) * 2006-12-22 2012-10-27 Бсх Бош Унд Сименс Хаусгерете Гмбх Refrigerating device and method to control refrigerating device
US8418498B2 (en) 2006-12-22 2013-04-16 Bsh Bosch Und Siemens Hausgeraete Gmbh Refrigeration device and method for controlling a refrigeration device

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