EP2593734B1 - Réfrigérateur sans givre - Google Patents

Réfrigérateur sans givre Download PDF

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Publication number
EP2593734B1
EP2593734B1 EP11728937.1A EP11728937A EP2593734B1 EP 2593734 B1 EP2593734 B1 EP 2593734B1 EP 11728937 A EP11728937 A EP 11728937A EP 2593734 B1 EP2593734 B1 EP 2593734B1
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EP
European Patent Office
Prior art keywords
refrigerator
evaporator
compartment
previous
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.)
Not-in-force
Application number
EP11728937.1A
Other languages
German (de)
English (en)
Other versions
EP2593734A1 (fr
Inventor
Gianluca Francolini
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.)
Jp Industries SpA
J P IND SpA
Original Assignee
Jp Industries SpA
J P IND SpA
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 Jp Industries SpA, J P IND SpA filed Critical Jp Industries SpA
Priority to PL11728937T priority Critical patent/PL2593734T3/pl
Publication of EP2593734A1 publication Critical patent/EP2593734A1/fr
Application granted granted Critical
Publication of EP2593734B1 publication Critical patent/EP2593734B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • 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
    • F25D17/065—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 with compartments 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
    • 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
    • F25D17/042—Air treating means within refrigerated spaces
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • 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
    • F25D17/067—Evaporator fan units
    • 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
    • F25D2317/04—Treating air flowing to refrigeration compartments
    • F25D2317/041—Treating air flowing to refrigeration compartments by purification
    • F25D2317/0413—Treating air flowing to refrigeration compartments by purification by humidification
    • 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
    • F25D2317/0683—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 the fans not of the axial type

Definitions

  • the object of the present invention is a refrigerator for household purpose, in particular of the type that does not form frost, also called no-frost.
  • the object of the invention is a no-frost refrigerator capable of storing food and products of any nature therein without substantial losses of the quality thereof.
  • the invention therefore, relates to the field of household appliances, in particular to that of household no-frost refrigerators.
  • no-frost refrigerators heat is taken from food and products to be stored by forced convection, through a circulation of cold air in the inside compartment thereof; such feature differentiates no-frost refrigerators from those called "static", that is, without forced convection.
  • no-frost and static refrigerators Another difference between no-frost and static refrigerators consists in the different defrosting method that takes place electronically in the first ones whereas it is generally manual in the second ones.
  • refrigerators are provided with one or more inside compartments with different temperatures for storing and preserving food and products of a various nature (hereinafter, for clarity, globally indicated by the term "food”): in particular, a refrigerator compartment suitable for storing fresh food at a temperature comprised between 0°C and 10°C and a freezer compartment, of smaller dimensions and volume than the first one, for storing frozen food.
  • a refrigerator compartment suitable for storing fresh food at a temperature comprised between 0°C and 10°C and a freezer compartment, of smaller dimensions and volume than the first one, for storing frozen food.
  • said refrigerators are divided into “combined” and "dual door".
  • Each compartment can further comprise multiple divisions, shelves and/or drawers.
  • the term (no-frost) refrigerator shall always be used in the following description, irrespective of the number of inside compartments and of the type.
  • Ventilated no-frost refrigerators are provided with an evaporator, generally laminar, for cooling and drying the air and a fan for the movement thereof within said one or more compartments.
  • Such components are generally set behind the back wall of at least one of the refrigerator compartments while multiple holes obtained thereon allow the inlet and the subsequent circulation of the cooled air flow between the various shelves (provided that they are not obstructed by the food). Since no-frost refrigerating appliances are known, at this level it does not seem necessary to further dwell on the multiple possibilities of installation of the evaporator thereof.
  • the main drawback of no-frost refrigerators is the forming of frost on the evaporator.
  • inside the refrigerator there usually is a considerable inlet of humidity due to both the inlet of air from the outside (for example, when the door is opened) and to the unavoidable process of transpiration of the fresh food to be cooled and stored; during the cooling of the air, therefore, the collected humidity frosts, accumulating thereon as ice.
  • the forming of ice on the laminar evaporator leads to a penalisation of the heat exchange due to the insulating properties thereof and to a fluid-dynamic inefficiency, since the air passage is increasingly hindered by the forming of frost.
  • frost may even lead to the breakage of the evaporator, in particular impairing the coupling between the blades thereof (intended for increasing the heat exchange surface) and the coil crossed by the refrigerating fluid.
  • a "good" use of the refrigerator for example avoiding frequent opening of the door thereof or the introduction of hot food contributes to limiting the inlet of heat and humidity, and thus, to limiting consumptions and forming of frost on the evaporator, but in any case such drawback cannot be eliminated as it is inbuilt in the same concept of refrigeration in environments that in any case exhibit a certain humidity level. It is generally managed by defrosting systems of the evaporator that are triggered automatically and at fixed time intervals. Known defrosting systems for example are those that provide for the reversal of the refrigerating cycle and/or the use of electrical resistors placed at the evaporator. It is clear that the energy used for transforming the humidity into frost as well as that used for melting the same frost (especially in the case of electrical resistors) represents a waste that significantly affects the energy efficiency and the consumptions of the refrigerating appliance.
  • a second big drawback of no-frost refrigerators relates to the risk that if the food, especially "fresh” food (vegetables, fruit and the like) is not protected by films or container, it could dry excessively losing its organoleptic and nutritional properties by the effect of the activated air circulation.
  • fresh food has a humidity value that is normally very high, and therefore a relative air humidity in the range of 90-95% is found on the surface thereof.
  • a relative humidity at least equal to such value should therefore be kept in the compartment where this food is stored for preventing water from evaporating from the surface thereof, whereas since the air coming out of the evaporator has yielded the humidity thereof to it in the form of frost, it is substantially dry.
  • Systems for the rehumidification of the cold and dry air coming from the evaporator have long been provided in order to limit such drawback.
  • said systems may consist in trays, obtained on the bottom of the refrigerator compartment, suitable for collecting and containing a part of the condensation water formed during the automatic defrosting process of the evaporator and subject to being lapped by the cold air flow.
  • documents IT1104915 and/or US 4 272 969 See documents IT1104915 and/or US 4 272 969 .
  • a refrigerator according to the preamble of claim 1 is disclosed in US 4 272 969 .
  • the object of the present invention is to eliminate at least a part of the drawbacks outlined above.
  • the main object of the present invention is to provide a no-frost refrigerator provided with improved means for keeping the organoleptic properties and features of the food stored therein even for long periods.
  • a second object of the present invention is to provide a no-frost refrigerator characterised by a high energy efficiency and low consumption.
  • a further object, at least of some versions of the present invention, is to provide an improved system for lighting the compartments of the no-frost refrigerator with a reduced energy consumption and a high aesthetic and commercial value.
  • reference numeral 1 indicates a no-frost refrigerator respectively of the single door and dual door types.
  • refrigerator shall always refer to a refrigerating appliance of the no-frost type.
  • Cabinet 11 is shown of refrigerator 1, obtained by thermo-forming, wherein there are defined one or more compartments 12, 13 comprising a plurality of shelves 14 whereon the food to be stored may be placed.
  • the food may also be stored into sliding drawers 15 or in cells closed by flap doors (not shown in the annexed figures).
  • Compartments 12, 13 may be accessed from the outside through relative doors 12.a, 13.a.
  • refrigerator 1 of figure 1 is provided with a single door 12.a for closing the single compartment 12 wherein the fresh products and food are stored (called refrigerator compartment 12) whereas figure 2 shows a refrigerator 1 that besides said refrigerator compartment 12, comprises a second compartment 13 (called freezer compartment 13) for storing frozen and/or deep-frozen products, also provided with the relevant access door 13.a.
  • the preservation of the organoleptic and nutritional properties of the food stored into refrigerator 1 is carried out by the circulation of a suitably cooled air flow capable of refrigerating the food by forced convection, lapping it.
  • the evaporator unit 2 comprises a fan 21 (preferably centrifugal and associated to a motor, not shown) and a laminar evaporator 22 (also called finned battery) wherein the air flow to be refrigerated is forced to pass, pushed by fan 21.
  • a fan 21 preferably centrifugal and associated to a motor, not shown
  • a laminar evaporator 22 also called finned battery
  • fan 21 and evaporator 22 are positioned on a platform 23 whereto a back 24 is jointed, the function whereof shall be explained hereinafter, lying on a vertical plane substantially orthogonal to that of the same platform 23.
  • the housing for the centrifugal fan 21 is obtained on platform 23 in the proximity of the front edge 231 thereof whereas the laminar evaporator 22 is positioned at the opposite back edge 233.
  • a distributor 25 is further provided between the centrifugal fan 21 and evaporator 22 which evenly distributes the air flow drawn by fan 21 from the refrigerator compartment 12 on the entire exchanging surface of evaporator 22 for an optimum cooling thereof.
  • Distributor 25 of figure 3a and/or 3b consists of fins 251 that extend from hub 211 of fan 21 defining a plurality of distribution channels 252 thereinbetween and with said front edge 231 of platform 23.
  • the centrifugal fan 21 is hidden to the sight by a cover 3 fixed to the outside face 232 of platform 23 and provided with a safety grid 31 and with optional low consumption light spots 32 (preferably LED).
  • the evaporator unit 2 is positioned and fixed, through known means and systems (for example by screwing), within the refrigerator compartment 12 so that platform 23 (and the components placed thereon) is close to ceiling 111 of the refrigerator compartment 12 and back 24 to the back wall 112 thereof.
  • width LS of back 24 is less than that LP of the back wall 112 so as to leave a passage 5 between the side edges and sides 113 of the refrigerator compartment 12 (or, which is equivalent, of cabinet 11) for the reasons that shall be explained hereinafter.
  • Back 24 and the longitudinal profiles 244 thereof form a channelling C with the back wall 112 of the refrigerator compartment 12.
  • channelling C is suitable for conveying the water generated towards a drain 16 for the discharge thereof (generally obtained on the back wall 112 of the refrigerator compartment 12 in the proximity of cavity 17 that seats the compressor and other known components of the refrigerating circuit) whereas during the steady operation of refrigerator 1 it serves as plenum suitable for receiving the cold air flow coming from evaporator 22 and wherefrom, pushed by fan 21, is subject to passing again into the refrigerator compartment 12. From said plenum C, in fact, the air flow first crosses openings 245 (see fig. 5 ) of the longitudinal profiles 244 and then the above passages 5 actually entering into the refrigerator compartment 12. In other words, the air circulation indicated by arrows F1 in the annexed figures is activated within the refrigerator compartment 12.
  • the surface of the inside face 243 of back 24 further has, according to the invention, such features as to allow a part of the defrosting water, conveyed by gravity towards drain 16, to be retained thereon.
  • Such capacity of the inside face 243 of back 24 to remain wet may be obtained in various ways: by way of a non/limiting example, by providing scratches and/or streaks and/or grooves and/or embossing and/or felts and/or any other system and means on said inside face 243 suitable for making the surface of said inside face 243 of said back 24 sufficiently rough to retain the defrosting water making it wettable and/or hygroscopic.
  • the cold and dry air coming from evaporator 22 and that fills plenum C during the routine operation of refrigerator 1 is therefore capable of becoming charged with humidity lapping the wet surface of said inside face 243 of back 24.
  • baffles 242 that direct the cold air flow towards openings 245 of the longitudinal profiles 244.
  • Said baffles 242 may be fixed or motor-driven, in this second case they may vary their orientation (controlled for example by the control and management unit of refrigerator 1) for directing a larger fraction of cold air towards some shelves 14 of the refrigerator compartment 12 rather than in others, for example towards those wherein a faster cooling of the food is required.
  • evaporator unit 2 also a second important advantage is achieved with the evaporator unit 2 described above.
  • the defrosting of evaporator 22 which takes place subsequent to the temporary and programmed interruption of the refrigerating cycle, takes place naturally simply due to the fact that it is placed within the refrigerator compartment 12 where, as known, the temperatures for food storage are highly positive, generally comprised between 3°C and 10°C.
  • the lighting system 4 preferably consists of light LED or SMD bars that, once installed onto seats 241, illuminate said passages 5 between back 24 and sides 113 of cabinet 11.
  • LED shall also indicate the so-called light SMD.
  • multiple sectors 41, 42 may be found on the light bars 4, each one being capable of emitting light of different colours.
  • the light bar 4 may be provided with first sectors 41 the LED whereof emit a light with substantially neutral or warm colours (preferably white or red) and second sectors 42 that emit cold light, preferably blue.
  • Light bars 4 thus conceived therefore have the dual function of allowing an adequate lighting of the refrigerator compartment 12 while signalling, through the colour of the emitted light, the different temperatures that may be found therein between shelves 14.
  • said first sectors 41 shall be positioned at those shelves 14 (and/or drawers 15) located in the zones of the refrigerator compartment 12 with higher temperatures whereas the second sectors 42 at those located in the zones with lower temperature (we may consider, for example, the well-known "quick cooling" compartments comprising one or more shelves 14).
  • the temperatures of said zones of the refrigerator compartment 12 may be changed, increasing or decreasing them, respectively according to the larger or smaller cold air flow rate directed by the motor-driven and adjustable baffles 242 of back 24.
  • each sector 41 and/or 42 of the light bar 4 may comprise both LED L1 capable of emitting neutral/warm light and LED L2 that on the contrary emit cold light, the first one activating when the temperature of the zone of the refrigerator compartment 12 is higher than a predetermined threshold value, the second ones when it is lower.
  • the alternate lighting of LED L1 or L2 may therefore be automatically subject (by the control and command unit of refrigerator 1) to change in orientation of the motor-driven baffles 242.
  • refrigerator 1 object of the invention
  • the various components described above may be replaced with technically equivalent ones.
  • the evaporator unit 2 installed, as already widely described, in the refrigerator compartment 12 is also used for cooling an air flow intended for the freezer compartment 13.
  • the air flow drawn by fan 21 from the refrigerator compartment 12 and cooled by evaporator 22 is therefore partly pushed along back 24 and hereby back again to the refrigerator compartment 12 for storing fresh food and partly to the freezer compartment 13 (where much lower temperatures are required, in the range of- 20-25°C for the storage thereof).
  • an insulated conduit 131 is provided on wall 112 of cabinet 11, at the back of the freezer compartment 13, for conveying the air cooled by evaporator 22 to the same freezer compartment 13 whereas in the partition 114 with the refrigerator compartment 12 there is provided a return conduit 132, insulated as well, which returns the refrigerated air (according to the direction of arrows F2) downstream of fan 21 for a new cooling to evaporator 22.
  • freezer compartment 13 with a dedicated fan-evaporator unit which is independent of that installed in the refrigerator compartment 12.
  • the lighting system 4 further allows a more efficient use of refrigerator 1 signalling, with the different colours of the light emitted, the different internal temperatures so that the user can safely place the food, based on the organoleptic properties and features thereof, on the proper shelf 14 or drawer 15 ensuring the optimal preservation thereof.

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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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
  • Freezers Or Refrigerated Showcases (AREA)

Claims (12)

  1. Réfrigérateur (1), en particulier de type sans formation de givre,
    comprenant un compartiment de réfrigérateur (12) ou un compartiment de réfrigérateur (12) et un compartiment de congélateur (13) dans son enceinte (11) pour conserver les aliments et une unité d'évaporateur (2; 21, 22, 23, 24, 25) comprenant elle-même :
    - un évaporateur (22)
    - un ventilateur (21)
    ledit évaporateur (22) étant adapté au refroidissement de l'air circulant à l'intérieur dudit compartiment de réfrigérateur (12) et/ou dudit compartiment de congélateur (13) par ledit ventilateur (21) caractérisé en ce que
    - ledit évaporateur (22) est placé sur une plate-forme (23) à laquelle est fixée une partie arrière (24), ladite partie arrière (24) étant installée contre la paroi arrière (112) dudit compartiment de réfrigérateur (12)
    - ladite partie arrière (24) forme un canal (C) avec les profilés longitudinaux (244) de celui-ci et avec ladite paroi arrière (112), ledit canal (C) communiquant avec ledit évaporateur (22) et constituant un moyen d'acheminement de l'eau de dégivrage dudit évaporateur (22) et une chambre (C) adaptée à la réception de l'air refroidi par ledit évaporateur (22) et provenant de celui-ci ;
    - la surface de la face intérieure (243) de ladite partie arrière (24) est équipée de moyens adaptés pour retenir une partie de la dite eau de dégivrage, la rendant mouillable et/ou hygroscopique, ladite face intérieure (243) de ladite partie arrière (24) charge d'humidité l'air refroidi provenant dudit évaporateur (22), qui l'absorbe.
  2. Réfrigérateur (1) conformément à la revendication précédente
    caractérisé en ce que
    la quantité de ladite eau de dégivrage que ladite face intérieure (243) de ladite partie arrière (24) est capable de retenir est définie à l'étape de conception en jouant sur les dimensions de ladite face intérieure (243) et/ou sur les types et les caractéristiques desdits moyens de ladite partie arrière (24) adaptés pour retenir une partie de ladite eau de dégivrage.
  3. Réfrigérateur (1) conformément à l'une des revendications précédentes
    caractérisé en ce que
    le dit moyen d'acheminement (C) est relié à un drain (16) pour évacuer ladite eau de dégivrage.
  4. Réfrigérateur (1) conformément l'une des revendications précédentes
    caractérisé en ce que
    ladite partie arrière (24) a une largeur (LS) inférieure à la largeur (LP) de ladite paroi arrière (112) dudit compartiment de réfrigérateur (12), entre les bords latéraux de ladite partie arrière (24) et les côtés dudit compartiment de réfrigérateur (12) des passages étant définis (5) pour le passage de l'air à la sortie de ladite chambre (C) par des ouvertures (245) sur lesdits profilés longitudinaux (244) donnant sur ledit compartiment du réfrigérateur (12).
  5. Réfrigérateur (1) conformément à l'une des revendications précédentes
    caractérisé en ce que
    Lesdits moyens de ladite face intérieure (243) de ladite partie arrière (24) adaptés pour retenir une partie de ladite eau de dégivrage consiste à procéder à : des rayures et/ou striures et/ou rainures et/ou gaufrages et/ou à placer des feutres sur ladite face intérieure (243) de ladite partie arrière (24) et/ou tout autre système ou moyen adaptés pour rendre la surface de la face intérieure (243) de ladite partie arrière (24) suffisamment rugueuse pour qu'elle soit mouillable et/ou hygroscopique.
  6. Réfrigérateur (1) conformément à l'une des revendications précédentes
    caractérisé en ce que
    sur ladite face intérieure (243) de ladite partie arrière (24) des déflecteurs (242) sont installés pour diriger l'air refroidi par ledit évaporateur (22) et récupéré dans ladite chambre (C) vers lesdites ouvertures (245) desdits profilés longitudinaux (244).
  7. Réfrigérateur (1) conformément à la revendication précédente
    caractérisé en ce que
    lesdits déflecteurs (242) sont équipés de systèmes motorisés qui permettent de changer leur direction.
  8. Réfrigérateur (1) conformément à l'une des revendications précédentes
    caractérisé en ce que
    ledit ventilateur (21) est situé à proximité de l'extrémité avant (231) de ladite plate-forme (23) alors que ledit évaporateur (22) est situé complètement à l'extrémité arrière opposée (233) de ladite plate-forme.
  9. Réfrigérateur (1) conformément à l'une des revendications précédentes
    caractérisé en ce que
    ladite plate-forme (23) comprend également un répartiteur (25) adapté pour répartir de façon homogène l'air aspiré par ledit ventilateur (21) sur toute la surface d'échange dudit évaporateur (22), ledit répartiteur étant disposé entre ledit ventilateur (25) et ledit évaporateur (22) et comprenant plusieurs canaux de répartition (252) délimités par ladite extrémité avant (231) et par les hélices (251) qui vont du moyeu (211) au dit ventilateur (21).
  10. Réfrigérateur (1) conformément à la revendication 8 au moins
    caractérisé en ce que ladite plate-forme (23) est située à proximité du plafond (111) dudit compartiment de réfrigérateur (12).
  11. Réfrigérateur (1) conformément à la revendication 8 au moins
    caractérisé en ce que ledit compartiment de congélateur (13) :
    - communique avec ledit évaporateur (22) par un tuyau isolant (131) situé dans la paroi (112) de ladite enceinte (11) derrière ledit compartiment de congélateur (13), ledit tuyau (131) faisant circuler une partie de l'air refroidi par ledit évaporateur (22) dans ledit compartiment de congélateur (13) selon les méthodes habituelles de répartition pour conserver des aliments congelés et/ou surgelés.
    - communique avec un tuyau de retour (132) situé dans la partie séparant (114) ledit compartiment de congélateur (13) dudit compartiment de réfrigérateur (12), ledit tuyau de retour (132) étant adapté pour renvoyer ladite partie d'air en aval dudit ventilateur (31) pour un nouveau refroidissement.
  12. Réfrigérateur (1) conformément à l'une des revendications précédentes
    caractérisé en ce que les dispositifs d'éclairage (4) sont placés sur ladite partie arrière (24) pour des raisons de signalisation et/ou esthétiques.
EP11728937.1A 2010-07-12 2011-06-14 Réfrigérateur sans givre Not-in-force EP2593734B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11728937T PL2593734T3 (pl) 2010-07-12 2011-06-14 Chłodziarka bezszronowa

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITAN2010A000115A IT1401778B1 (it) 2010-07-12 2010-07-12 Frigorifero no-frost perfezionato
PCT/IB2011/001358 WO2012007806A1 (fr) 2010-07-12 2011-06-14 Réfrigérateur amélioré sans formation de givre

Publications (2)

Publication Number Publication Date
EP2593734A1 EP2593734A1 (fr) 2013-05-22
EP2593734B1 true EP2593734B1 (fr) 2014-05-14

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DK (1) DK2593734T3 (fr)
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IT (1) IT1401778B1 (fr)
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CN109539622A (zh) * 2018-11-30 2019-03-29 上海海立睿能环境技术有限公司 一种空气源热泵机组及其化霜控制方法
CN114719514B (zh) * 2021-01-04 2023-07-14 青岛海尔电冰箱有限公司 冰箱
CN114719509B (zh) * 2021-01-04 2023-07-14 青岛海尔电冰箱有限公司 冰箱

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US3455119A (en) * 1968-02-16 1969-07-15 Gen Motors Corp Plural compartment high humidity domestic refrigerator
US4075866A (en) * 1977-01-07 1978-02-28 General Motors Corporation Refrigerator defroster-humidifier
CH635190A5 (de) 1977-02-03 1983-03-15 Forster Hermann Ag Verfahren zum kuehllagern und frischhalten von frischprodukten sowie kuehlmoebel zur ausfuehrung des verfahrens.
FR2629185A1 (fr) * 1988-03-25 1989-09-29 Selnor Electromenager Nord Enceinte comportant un dispositif d'humidification d'air
JPH0726783B2 (ja) * 1989-03-08 1995-03-29 三洋電機株式会社 高湿度低温ケース
NO174484C (no) * 1992-01-15 1994-05-11 Ketil Aas Fremgangsmåte for å hindre uttörking av varer i kjölerom ved hjelp av fuktig luft

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DK2593734T3 (da) 2014-08-11
ITAN20100115A1 (it) 2012-01-13
WO2012007806A1 (fr) 2012-01-19
ES2490270T3 (es) 2014-09-03
PL2593734T3 (pl) 2014-10-31
IT1401778B1 (it) 2013-08-28
EP2593734A1 (fr) 2013-05-22

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