EP0754284B1 - Freezer with a quick-freezing device using cold accumulators - Google Patents
Freezer with a quick-freezing device using cold accumulators Download PDFInfo
- Publication number
- EP0754284B1 EP0754284B1 EP95918020A EP95918020A EP0754284B1 EP 0754284 B1 EP0754284 B1 EP 0754284B1 EP 95918020 A EP95918020 A EP 95918020A EP 95918020 A EP95918020 A EP 95918020A EP 0754284 B1 EP0754284 B1 EP 0754284B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compartment
- evaporator
- cold
- freezing
- accumulators
- 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.)
- Expired - Lifetime
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D16/00—Devices using a combination of a cooling mode associated with refrigerating machinery with a cooling mode not associated with refrigerating machinery
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/006—Self-contained movable devices, e.g. domestic refrigerators with cold storage accumulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
- F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
- F25D2317/0682—Two or more fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- 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
- F25D2400/04—Refrigerators with a horizontal mullion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- 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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- 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
- F25D2600/00—Control issues
- F25D2600/02—Timing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
- F25D2700/122—Sensors measuring the inside temperature of freezer compartments
Definitions
- the device according to the invention comprises, a refrigeration unit of conventional type, the evaporator of which is placed in a chamber called “cold storage chamber", inside this chamber are also placed cold accumulators.
- the assembly communicates with a rapid-freezing compartment in which the air cooled simultaneously by the evaporator and by the cold accumulators is pulsed by fans or the like.
- this device comprises a compartment (1) here called “cold storage chamber” and located according to the preferred embodiment shown in the drawing, at the bottom of the cabinet, behind the freezer compartment (5) occupying the entire interior width of the cabinet.
- the accumulators are spaced apart, and the two batteries are also placed at a distance from the evaporator to allow free circulation of air.
- the same evaporator cools the freezing compartment (10) through the wall (11) which has inside, an insulating material so that the cold from the cold storage chamber (which is here the order of minus 30 degrees approximately) is attenuated in the freezing compartment, which does not require such a low temperature for the preservation of food.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
Description
La présente invention concerne la congélation rapide des aliments, et plus particulièrement dans le domaine ménager ou hôtelier, apportant la possibilité de congeler de la manière la plus souhaitable qu'il soit, pour obtenir un produit congelé de qualité.The present invention relates to the rapid freezing of food, and more particularly in the household or hotel sector, providing the possibility of freezing in the most desirable manner, to obtain a quality frozen product.
Il existe dans le commerce des installations ou appareils permettant la congélation rapide des aliments, mais ces appareils concernent plus particulièrement le domaine de l'industrie (Tunnels, cellules de surgélation etc...) Ces appareils possèdent un système de refroidissement dont le coût de fabrication est beaucoup trop élevé par rapport aux besoins du particulier ainsi qu'à la plupart des professionnels de l'alimentation de détail .There are commercially available installations or devices for rapid freezing of food, but these devices relate more particularly to the field of industry (Tunnels, deep-freezing cells, etc.) These devices have a cooling system, the cost of which manufacturing is far too high compared to the needs of the individual as well as to most retail food professionals.
Il est connu par le document BE-A-885.906 de recourir, pour la congélation rapide et la conservation des produits congelés, à des meubles frigorifiques comportant un premier compartiment destiné à la congélation rapide des produits, communiquant avec un second compartiment comportant un évaporateur, l'air du second compartiment étant refroidi, lors du fonctionnement du meuble par ledit évaporateur et pulsé directement sur les produits à congeler situés dans le premier compartiment, par une soufflerie, l'évaporateur étant également apte à refroidir un troisième compartiment réservé à la conservation des produits congelés. Toutefois, il n'a pas été prévu,dans de tels meubles frigorifiques, d'accumuler des frigories lors des périodes de simple conservation des produits antérieurement congelés, afin de récupérer lesdites frigories en supplément de celles fournies directement par l'évaporateur en vue d'obtenir une congélation rapide d'une masse assez importante de produits en utilisant qu'un groupe frigorifique de faible puissance.It is known from document BE-A-885.906 to use, for rapid freezing and preservation of frozen products, refrigerated cabinets comprising a first compartment intended for rapid freezing of products, communicating with a second compartment comprising an evaporator, the air in the second compartment being cooled, during the operation of the cabinet by said evaporator and pulsed directly on the products to be frozen located in the first compartment, by a blower, the evaporator also being capable of cooling a third compartment reserved for preservation frozen products. However, it has not been envisaged, in such refrigerated cabinets, to accumulate frigories during periods of simple conservation of previously frozen products, in order to recover said frigories in addition to those supplied directly by the evaporator for '' obtain a rapid freezing of a fairly large mass of products using only a low-power refrigeration unit.
Il est connu aussi, par le document FR-A-947.962, d'utiliser des accumulateurs de froid chargés en frigorie, lors des périodes d'inutilisation d'installation de congélation industrielle, pour réduire le temps de congélation de denrées particulièrement fragiles ; ces accumulateurs de froid, disposés sur les serpentins de saumure, retransmettant à ceux-ci les frigories accumulées pendant les heures d'inutilisation, afin de pouvoir disposer d'une réserve de frigories, lors de la remise en service de l'installation frigorifique. Toutefois, le maintien à basse température des accumulateurs pendant une assez longue période d'inutilisation se traduit par une consommation d'énergie grévant le prix de revient de la congélation, même lorsque l'électricité n'est facturée qu'au tarif correspondant aux heures creuses, sans pour autant que l'on puisse obtenir l'addition immédiate des frigories accumulées et de celles fournies par les serpentins de saumure.It is also known, from document FR-A-947,962, to use cold accumulators charged with refrigeration, during periods of non-use of industrial freezing installations, to reduce the freezing time of particularly fragile foodstuffs; these cold accumulators, placed on the brine coils, transmitting to them the frigories accumulated during the hours of non-use, so as to be able to have a reserve of frigories, when the refrigerating installation is put back into service. However, keeping the accumulators at low temperatures for a fairly long period of non-use results in energy consumption increasing the cost of freezing, even when electricity is billed only at the rate corresponding to the hours. hollow, without however being able to obtain the immediate addition of the accumulated frigories and those supplied by the brine coils.
Il est connu aussi, d'accumuler du froid dans des meubles frigorifiques (FR-A-1.239.733, US-A-5.065.592, US-A-4.928.501, DE-A-39 26 250) en disposant les serpentins de l'évaporateur dans une enceinte contenant un liquide frigorigène, mais il n'est pas possible, par ce moyen, de disposer, dès le début de la congélation, de la cumulation des apports frigoriques fournis respectivement par les accumulateurs et par l'évaporateur, puisque ce dernier est noyé dans le fluide frigorigène.It is also known to accumulate cold in refrigerated cabinets (FR-A-1.239.733, US-A-5.065.592, US-A-4.928.501, DE-A-39 26 250) by arranging the evaporator coils in an enclosure containing a refrigerant, but it is not possible, by this means, to have, from the start of freezing, the accumulation of the refrigerant supplies provided respectively by the accumulators and by the evaporator, since the latter is embedded in the refrigerant.
Comme on le voit, aucun des dispositifs ci-dessus analysés n'a été conçu pour permettre une restitution très rapide des frigories accumulées pendant la conservation, pour transmettre directement celles-ci aux produits à congeler en plus de celles directement fournies par l'évaporateur du groupe frigorifique fonctionnant à pleine puissance.As can be seen, none of the devices analyzed above have been designed to allow a very rapid restitution of the frigories accumulated during storage, to transmit these directly to the products to be frozen in addition to those directly supplied by the evaporator. of the refrigeration unit operating at full power.
Le dispositif selon l'invention tel qu'il est défini dans la revendication 1 permet de remédier à cet inconvénient en utilisant simplement, un groupe frigorifique classique employé pour faire fonctionner un congélateur ou réfrigérateur-congélateur de type courant, ce groupe refroidit une batterie d'accumulateurs de froid, qui le moment voulu, le restitue pouvant ainsi produire une grande quantité de froid en un temps très court.The device according to the invention as defined in claim 1 overcomes this drawback by simply using a conventional refrigeration unit used to operate a common type freezer or refrigerator-freezer, this group cools a battery d 'cold accumulators, which when needed, restore it, thus producing a large amount of cold in a very short time.
La solution apportée par le présent dispositif réside dans l'emploi de l'air refroidi simultanément par l'évaporateur de l'appareil et par une batterie d'accumulateurs de froid, elle-même préalablement refroidie par ledit évaporateur, cet air est pulsé à l'intérieur d'un compartiment à congélation rapide.The solution provided by the present device resides in the use of air cooled simultaneously by the evaporator of the apparatus and by a cold storage battery, itself previously cooled by said evaporator, this air is forced to inside a quick-freezing compartment.
Le dispositif selon l'invention comporte, un groupe frigorifique de type classique, dont l'évaporateur est placé dans une chambre appelée " chambre à accumulation de froid ", à l'intérieur de cette chambre sont également placés des accumulateurs de froids. L'ensemble communique avec un compartiment à congélation rapide dans lequel l'air refroidi simultanément par l'évaporateur et par les accumulateurs de froid est pulsé par des ventilateurs ou similaires.The device according to the invention comprises, a refrigeration unit of conventional type, the evaporator of which is placed in a chamber called "cold storage chamber", inside this chamber are also placed cold accumulators. The assembly communicates with a rapid-freezing compartment in which the air cooled simultaneously by the evaporator and by the cold accumulators is pulsed by fans or the like.
La figure 1 représente en coupe, le dispositif selon l'invention.Figure 1 shows in section, the device according to the invention.
En référence à ce dessin, ce dispositif comporte un compartiment (1) nommé ici "chambre à accumulation de froid" et situé selon le mode préférentiel de réalisation représenté sur le dessin, au fond du meuble, derrière le compartiment de congélation (5) occupant toute la largeur intérieure du meuble.With reference to this drawing, this device comprises a compartment (1) here called "cold storage chamber" and located according to the preferred embodiment shown in the drawing, at the bottom of the cabinet, behind the freezer compartment (5) occupying the entire interior width of the cabinet.
A l'intérieur de cette chambre, sont logés l'évaporateur (2) du groupe frigorifique ainsi que deux batteries (3,7) d'accumulateurs de froid fixées de chaque coté de l'évaporateur (ici, plaques eutectiques dont la solution est dosée de façon à obtenir un point d'eutexie à environ moins 30 degrés Celcius).Inside this chamber, are housed the evaporator (2) of the refrigeration unit as well as two batteries (3,7) of cold accumulators fixed on each side of the evaporator (here, eutectic plates whose solution is dosed so as to obtain a point of eutexia at approximately minus 30 degrees Celcius).
La présente invention ne limite pas le genre de produit employé pour constituer les accumulateurs de froid ni le degré de température auquel ces accumulateurs peuvent donner leur rendement maximum.The present invention does not limit the kind of product used to constitute cold accumulators or the degree of temperature at which these accumulators can give their maximum efficiency.
Les accumulateurs sont espacés entre eux, et les deux batteries sont également placées à distance de l'évaporateur pour permettre la libre circulation de l'air.The accumulators are spaced apart, and the two batteries are also placed at a distance from the evaporator to allow free circulation of air.
La partie supérieure de cette chambre à accumulation de froid communique sur toute sa largeur par un conduit (4) avec le fond supérieur du compartiment (5) réservé à la congélation rapide.The upper part of this cold storage chamber communicates over its entire width by a conduit (4) with the upper bottom of the compartment (5) reserved for rapid freezing.
Une série de ventilateurs (9) ou similaires est placée dans ledit conduit ayant pour fonction de pulser l'air provenant de la chambre à accumulation de froid dans le compartiment (5) à congélation rapide. Cet air, après avoir refroidi le produit entreposé dans le compartiment de congélation rapide, ressort par l'ouverture pratiquée au fond inférieur et sur toute la largeur dudit compartiment en (6), pour pénétrer de nouveau dans la chambre à accumulation de froid, cet air se refroidit ensuite au contact de la batterie d'accumulateurs (7) et de l'évaporateur (2) puis, passe par le passage situé dans la partie inférieure (8) de la chambre à accumulation de froid (1) et remonte le long de la batterie d'accumulateurs (3) en continuant de se refroidir à son contact ainsi qu'à celui de l'évaporateur.A series of fans (9) or the like is placed in said duct having the function of pulsing the air coming from the cold storage chamber in the compartment (5) with rapid freezing. This air, after having cooled the product stored in the rapid freezing compartment, exits through the opening made at the bottom bottom and over the entire width of said compartment in (6), to re-enter the cold storage chamber, this air then cools on contact with the storage battery (7) and the evaporator (2) then passes through the passage located in the lower part (8) of the cold storage chamber (1) and goes up the along the storage battery (3) while continuing to cool on contact with it and with that of the evaporator.
L'enveloppe des accumulateurs de froid est pourvue d'ondulations afin d'offrir un maximum de surface pour permettre un maximum d'échange de froid.The envelope of the cold accumulators is provided with corrugations in order to offer a maximum of surface to allow a maximum of exchange of cold.
Le même évaporateur permet de refroidir le compartiment de congélation (10) au travers de la paroi (11) laquelle comporte à l'intérieur, un matériau isolant afin que le froid provenant de la chambre à accumulation de froid ( qui est ici de l'ordre de moins 30 degrés environ ) soit atténué dans le compartiment de congélation, lequel ne neccessite pas une température aussi basse pour la conservation des aliments.The same evaporator cools the freezing compartment (10) through the wall (11) which has inside, an insulating material so that the cold from the cold storage chamber (which is here the order of minus 30 degrees approximately) is attenuated in the freezing compartment, which does not require such a low temperature for the preservation of food.
Selon un autre mode de réalisation, l'air refroidi par la chambre à accumulation de froid pénètre dans le compartiment de congélation (10) par un conduit qui traverse la paroi (11) lequel est muni d'une électro-vanne commandée par un thermostat placé dans le compartiment de congélation.According to another embodiment, the air cooled by the cold storage chamber enters the freezing compartment (10) through a conduit which passes through the wall (11) which is provided with an electro-valve controlled by a thermostat. placed in the freezer compartment.
Une grille (12) est disposée pour éviter que des projections d'aliments viennent obstruer les conduits (4) et (6).A grid (12) is arranged to prevent projections of food from obstructing the conduits (4) and (6).
La porte du compartiment de congélation rapide se situe en (13) et celle du compartiment de congélation en (14).The door of the rapid freezing compartment is at (13) and that of the freezing compartment at (14).
Le dégivrage de la chambre à accumulation de froid ainsi que du compartiment de congélation rapide est obtenu selon un mode non limitatif par des câbles chauffants fixés entre l'évaporateur et les accumulateurs de froid, sa mise en fonctionnement est assurée automatiquement par les moyens de commande et de détection classiques, qui actionnent en même temps les ventilateurs et verrouillent l'électro-vanne de la paroi (11) pendant toute la durée du dégivrage.The defrosting of the cold storage chamber as well as of the rapid freezing compartment is obtained in a nonlimiting mode by heating cables fixed between the evaporator and the cold accumulators, its operation is ensured automatically by the control means and conventional detection, which activate the fans at the same time and lock the solenoid valve of the wall (11) during the entire defrosting period.
Le fond de la chambre à accumulaticn de froid comporte un point bas et les éléments couramment employés pour l'évacuation des eaux de dégivrage.The bottom of the cold storage chamber has a low point and the elements commonly used for the evacuation of defrost water.
Un commutateur non représenté ici est fixé à portée de main de l'utilisateur, il est asservi par une minuterie qui sera préalablement réglée par l'utilisateur en fonction du temps nécessaire à la congélation rapide des produits entreposés dans le compartiment de congélation rapide, (Un manuel donnant les temps nécessaires pour la congélation rapide du produit est prévu pour information de l'utilisateur.)A switch not shown here is fixed within easy reach of the user, it is controlled by a timer which will be set beforehand by the user according to the time necessary for the rapid freezing of the products stored in the rapid freezing compartment, (A manual giving the times necessary for rapid freezing of the product is provided for the information of the user.)
Ledit commutateur provoque la mise en marche des ventilateurs et simultanément la marche forcée du groupe frigorifique pendant la durée déterminée par la minuterie, après quoi , le groupe frigorifique est commandé par les organes classiques de détection placés dans la chambre à accumulation de froid et réglés en fonction du degré de froid désiré.Said switch causes the fans to start and simultaneously the forced operation of the refrigeration unit for the duration determined by the timer, after which the refrigeration unit is controlled by the conventional detection members placed in the cold storage chamber and adjusted in depending on the desired degree of cold.
En d'autres termes, lorsque le groupe frigorifique n'est pas mis en marche forcée par le commutateur de congélation rapide, il est asservi à un organe de détection et de régulation de température comme par exemple, un thermostat installé dans la chambre à accumulation de froid.In other words, when the refrigeration unit is not forced into operation by the rapid freezing switch, it is slaved to a temperature detection and regulation device such as, for example, a thermostat installed in the storage chamber cold.
Ce dispositif peut être alimenté par un groupe frigorifique indépendant ou par un groupe comprenant également un second évaporateur pour refroidir un compartiment à température positive qui comporte alors les éléments de régulations traditionnels propres aux appareils à deux températures (positive et négative).This device can be supplied by an independent refrigeration unit or by a group also comprising a second evaporator for cooling a compartment at positive temperature which then includes the elements of traditional regulations specific to devices at two temperatures (positive and negative).
Claims (4)
- Refrigeration unit comprising a first compartment (5) intended for the fast freezing of products and communicating with a second compartment (1) comprising an evaporator (2), the air of the second compartment being chilled, while the refrigerator unit is functioning, by the said evaporator, and pulsed onto the products to be frozen located in the first compartment by a blower (9), the evaporator being equally suitable for the chilling of a third compartment (10) reserved for the conservation of frozen products (1), distinguished by the fact that the said evaporator is associated with a means of cold accumulation (3,7) the means of cold accumulation being made up of a set of cold accumulators separated from the evaporator by a space and with spaces between them, together with the walls of the said second compartment (1), in order to allow free passage of the air over the entire external surface of the said cold accumulators, that the compartment (1) containing the evaporator and the set of cold accumulators constitutes the extension of the compartment (5) intended for fast freezing, with which it communicates through two large apertures occupying the entire width of the said compartment, of which one constitutes the blower, which is arranged in such a way that the air chilled simultaneously by the evaporator and the cold accumulators is pulsed directly onto the products to be frozen located in the compartment (5) intended for fast freezing, and that the blower and the cooling unit which feeds the evaporator are controlled simultaneously by a commutator slaved to a time-switch during rapid freezing.
- Refrigeration unit as Claim 1, distinguished by the fact that the set of cold accumulators contains a eutectic product, the total mass of which, and the breakdown of which into several cold accumulators, are determined in such a way as to offer a capacity for the accumulation of frigories (French unit of cold) and a total heat exchange area sufficiently large to ensure rapid freezing.
- Refrigeration unit as Claim 1, distinguished by the fact that the storage capacity and the exchange area are determined in such a way as to obtain a freezing speed of 0.5 to 5 cm. per hour, depending on the products.
- Refrigeration unit as Claim 1, distinguished by the fact that the cooling unit with which it is equipped provides, through the intermediary of the evaporator (2), for the simultaneous chilling down of the cold accumulators, the rapid freezing compartment (5) and, indirectly, the conservation compartment (10) to the negative temperature desired, by conduction through the wall common to these two compartments.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9404903 | 1994-04-15 | ||
| FR9404903A FR2718834A1 (en) | 1994-04-15 | 1994-04-15 | Freezer comprising a device for rapid freezing with cold accumulators. |
| PCT/FR1995/000500 WO1995028608A1 (en) | 1994-04-15 | 1995-04-18 | Freezer with a quick-freezing device using cold accumulators |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0754284A1 EP0754284A1 (en) | 1997-01-22 |
| EP0754284B1 true EP0754284B1 (en) | 1997-08-27 |
Family
ID=9462442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95918020A Expired - Lifetime EP0754284B1 (en) | 1994-04-15 | 1995-04-18 | Freezer with a quick-freezing device using cold accumulators |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0754284B1 (en) |
| AT (1) | ATE157442T1 (en) |
| DE (1) | DE69500621T2 (en) |
| FR (1) | FR2718834A1 (en) |
| WO (1) | WO1995028608A1 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH694472A5 (en) * | 2000-05-04 | 2005-01-31 | Forster Ag Hermann | Fridge. |
| IT1317963B1 (en) * | 2000-06-08 | 2003-07-21 | Whirlpool Co | DEVICE TO ALLOW THE CREATION OF A FOOD STORAGE COMPARTMENT AT A CONTROLLED TEMPERATURE AND DIFFERENT FROM THAT OF A COMPARTMENT |
| CN100359266C (en) * | 2003-10-30 | 2008-01-02 | 乐金电子(天津)电器有限公司 | Refrigerator |
| ITTO20060110U1 (en) * | 2006-07-24 | 2008-01-25 | Indesit Co Spa | REFRIGERATION APPLIANCE WITH COOLING FUNCTIONS FOODS FOR PRE-SET TIMES |
| DE102010041952A1 (en) | 2010-10-04 | 2012-04-05 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating appliance with a cold storage |
| ITFI20110018A1 (en) * | 2011-02-02 | 2012-08-03 | C P S I Srl Consulenze Progettazio Ni E Servizi I | REFRIGERATOR APPARATUS. |
| EP2920529A1 (en) * | 2012-11-15 | 2015-09-23 | Arçelik Anonim Sirketi | A refrigerator comprising a separator |
| JP6492291B2 (en) * | 2016-03-23 | 2019-04-03 | パナソニックＩｐマネジメント株式会社 | refrigerator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE885906A (en) * | 1979-10-30 | 1981-04-28 | Pont P | APPARATUS FOR FREEZING AND PRESERVING FOOD PRODUCTS |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR947962A (en) * | 1947-05-22 | 1949-07-19 | Rapid refrigeration process for food products | |
| FR1243209A (en) * | 1958-12-19 | 1960-10-07 | Gen Motors Corp | Fridge |
| FR1239733A (en) * | 1959-11-03 | 1960-08-26 | Advanced refrigerator | |
| US3466891A (en) * | 1967-09-06 | 1969-09-16 | Amana Refrigeration Inc | Combination freezer and refrigerator with fast freezing means |
| US3721104A (en) * | 1969-01-22 | 1973-03-20 | R Adler | Marine refrigeration, freezing and cool storage systems |
| US3633375A (en) * | 1970-04-15 | 1972-01-11 | Westinghouse Electric Corp | Refrigerator cooling system design |
| JPH0533896Y2 (en) * | 1988-03-17 | 1993-08-27 | ||
| IT1228862B (en) * | 1989-03-23 | 1991-07-05 | Castel Mac Spa | STORAGE FREEZER APPARATUS FOR FOOD PRODUCTS. |
| DE3926250A1 (en) * | 1989-08-09 | 1991-02-14 | Juergen Mertens | Refrigerator with efficient freezer compartment heat exchanger - has fan circulated thermal exchange between main compartment and freezer requiring small energy input for drive |
| EP0412811B1 (en) * | 1989-08-11 | 1994-07-06 | Sanyo Electric Co., Ltd. | Cold box |
| FR2689215B1 (en) * | 1992-03-30 | 1994-07-01 | Sari | AIR TREATMENT INSTALLATION. |
-
1994
- 1994-04-15 FR FR9404903A patent/FR2718834A1/en not_active Withdrawn
-
1995
- 1995-04-18 EP EP95918020A patent/EP0754284B1/en not_active Expired - Lifetime
- 1995-04-18 WO PCT/FR1995/000500 patent/WO1995028608A1/en active IP Right Grant
- 1995-04-18 AT AT95918020T patent/ATE157442T1/en not_active IP Right Cessation
- 1995-04-18 DE DE69500621T patent/DE69500621T2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE885906A (en) * | 1979-10-30 | 1981-04-28 | Pont P | APPARATUS FOR FREEZING AND PRESERVING FOOD PRODUCTS |
Also Published As
| Publication number | Publication date |
|---|---|
| ATE157442T1 (en) | 1997-09-15 |
| EP0754284A1 (en) | 1997-01-22 |
| DE69500621D1 (en) | 1997-10-02 |
| FR2718834A1 (en) | 1995-10-20 |
| WO1995028608A1 (en) | 1995-10-26 |
| DE69500621T2 (en) | 1998-04-02 |
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