EP3286507B1 - Kühlvorrichtung mit schockgefrieren für haushalte - Google Patents

Kühlvorrichtung mit schockgefrieren für haushalte Download PDF

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Publication number
EP3286507B1
EP3286507B1 EP16712058.3A EP16712058A EP3286507B1 EP 3286507 B1 EP3286507 B1 EP 3286507B1 EP 16712058 A EP16712058 A EP 16712058A EP 3286507 B1 EP3286507 B1 EP 3286507B1
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EP
European Patent Office
Prior art keywords
chamber
air
cooling device
shock freezing
freezing
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EP16712058.3A
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English (en)
French (fr)
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EP3286507A1 (de
Inventor
Murat Darka
Sezgin KARAKIRAZ
Andreas Molnar
Engin SÖYLEMEZ
Gökhan ÇEREZCI
Istem ÖZKAN
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Publication of EP3286507A1 publication Critical patent/EP3286507A1/de
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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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • 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

Definitions

  • the present invention relates to a domestic cooling device with shock freezing in order to subject foodstuff to shock freezing process.
  • the freezing process can be realized in various manners. Accordingly, the foodstuff, which is desired to be frozen, is placed to the freezing compartment, and the freezing process is started.
  • the freezing speed of the foodstuff is very important for preserving the flavor of the foodstuff.
  • a refrigerator in the invention WO2010062021 , a refrigerator is provided.
  • the refrigerator may include a cold air generation chamber provided in a body of the refrigerator, the cold air generation chamber having an evaporator installed therein.
  • a cold air duct may form a path through which cold air generated in the cold air generation chamber is circulated to a freezer compartment, and a quick freezer compartment.
  • the quick freezer compartment may be connected with the cold air duct, and may be positioned substantially nearer to the evaporator than the freezer compartment.
  • a damper may be installed in the cold air duct to selectively shut off the flow of cold air to the freezer compartment.
  • the quick freezer compartment may be quickly cooled using cold air directly supplied from the cold air generation chamber.
  • cold air may be directed into the quick freezer compartment by selectively shutting off the supply of cold air into the freezer or refrigerator compartment.
  • a method for fast freezing food in a refrigerator apparatus comprising a fresh food compartment, a freezer compartment, a refrigeration system having a compressor, a condenser, a first evaporator situated in said freezer compartment, and a second evaporator situated in said fresh food compartment, and in which at least a fan situated in said freezer compartment is used for providing air flow over said first evaporator and over a food item to be fast frozen, the method comprising the steps of switching on the compressor when the temperature in the fresh food compartment is above a predetermined first set value and to switch on the fan when the compressor is running. When the temperature in the fresh food compartment is below the predetermined first set value the compressor is switched off and the fan is kept running until the temperature in the freezer compartment reaches a predetermined second set value.
  • GB 2 186 357 A1 discloses a cryogenic blast chiller in which an insulating cabinet is divided into two chambers, a first one of which receives a trolley carrying foodstuffs to be cooled, and the other of which accommodates a plenum into which liquid nitrogen can be injected, and cold air from the plenum is propelled into the first chamber though slits formed in a sidewall of the first chamber.
  • US 2008/156029 A1 discloses a domestic cooling appliance according to the preamble of claim 1.
  • US 2012/011881 A1 discloses a fast cooling method to be carried out in a domestic cooling appliance, according to the preamble of claim 11.
  • the object of the present invention is to provide a domestic cooling device for subjecting the foodstuff to shock freezing process.
  • the carrier element is provided in face of the air intake opening.
  • the air, entering into the chamber is prevented from contacting another surface and from changing the temperature thereof, and thus, the coolest form of the air, which enters into the chamber, reaches the foodstuff which is desired to be frozen.
  • At least one guidance flap is provided which extends at least partially along the edge of the air intake opening, in order to guide the cool air, entering into the chamber, towards the carrier element.
  • the air, which passes through the air intake opening is guided to the carrier element without spreading, and thus, said air is guided towards the foodstuff which is desired to be frozen.
  • the guidance flap extends along the edges of the air intake opening.
  • the air which passes through the air intake opening, is guided to the carrier element without spreading, and thus, said air is guided towards the foodstuff which is desired to be frozen.
  • At least one chamber wall is provided which extends in an at least partially inclined manner with respect to the airflow direction in order to guide the cool air of the chamber towards the sections of the carrier element which are distant from the air intake opening.
  • said chamber wall is a chamber ceiling defined at the upper side of the carrier element.
  • cool air intake can be provided through the upper section of the chamber against the rising of relatively hot air inside the chamber, and it can be guided downwards from here.
  • the air intake opening can be provided at the upper sections of the chamber, and the below mentioned air output opening can be provided at the bottom section of the chamber.
  • the chamber comprises at least one air output opening for permitting the output of the input cool air.
  • the air circulating inside the chamber absorbs the heat of the foodstuff, and afterwards, it leaves the chamber.
  • the total opening area provided for air output by means of at least one air output opening is smaller than the total opening area provided for air intake by means of at least one air intake opening.
  • pluralities of air output openings are provided on the chamber wall.
  • air is circulated inside the chamber and it leaves the chamber in a controlled manner.
  • the air output opening is provided on the chamber base.
  • air is circulated inside the chamber and it leaves the chamber in a controlled manner.
  • the relatively hotter air leaves the chamber without rising inside the chamber.
  • the carrier element is provided in a removable manner from the chamber.
  • the foodstuff which is desired to be cooled, is easily placed into the carrier element.
  • the chamber is provided in a removable manner from the freezing compartment.
  • the space occupation of the chamber inside the freezing compartment is prevented.
  • the present invention also relates to a shock freezing method for a domestic cooling device as defined in claim 11
  • the step of terminating the shock freezing process when the temperature in the chamber reaches -40 °C or becomes lower than -40 °C.
  • the foodstuff which is desired to be cooled, is prevented from burning as a result of cold.
  • the shock freezing duration is calculated according to the type (meat, fish, chicken, etc.) and amount of the foodstuff, and processing for longer or shorter durations is prevented.
  • the whole cooling performance of the domestic cooling device is guided to the freezing compartment.
  • the subject matter domestic cooling device (1) has at least one freezing compartment (10).
  • the cooling compartment (40) can be provided above or below said freezing compartment (10). There may be more than one cooling compartment (40), or compartments with different functions can be provided besides the freezing compartment (10).
  • At least one air intake opening (13) which transfers cool air into the freezing compartment (10) of the subject matter domestic cooling device (1).
  • Said air intake opening (13) is preferably provided on a rear wall (12) of the freezing compartment (10).
  • At least one shock freezing chamber (20) is provided inside the freezing compartment (10).
  • Said shock freezing chamber (20) is provided in the vicinity of the air intake opening (13).
  • the shock freezing chamber (20) is positioned in the freezing compartment (10) in a removable manner.
  • the shock freezing chamber (20) comprises pluralities of chamber walls (23) which define a volume which is at least partially closed.
  • at least one of the chamber walls (23) is provided in an openable manner like a cover.
  • the chamber wall (23) provided in cover form is in hinged or sliding form.
  • the air intake opening (13), which is provided at the freezing compartment (10) is directly opened into the shock freezing chamber (20).
  • the carrier element (30) there is at least one carrier element (30) provided inside the shock freezing chamber (20).
  • Said carrier element (30) has a volume wherein the foodstuff (60), which will be subject to the freezing process, can be positioned.
  • the upper side of the carrier element (30) is provided in open form in order to provide placement of the foodstuff (60) inside the carrier element (30).
  • the carrier element (30) is used for effectively cooling the foodstuff (60) from all sides.
  • the carrier element (30) is positioned in a manner permitting air flow between itself and the inner wall of the shock freezing chamber (20).
  • the carrier element (30) can be connected to chamber walls (23) by means of legs or hanger features.
  • the carrier element (30) is provided in wire lattice form.
  • the carrier element (30) is positioned in face of the air intake opening (13).
  • the guidance flap (25) is provided in the vicinity of the air intake opening (13). Said guidance flap (25) guides the cool air, passing through the air intake opening (13), towards the carrier element (30) without spreading around, and thus, the cool air is guided towards the foodstuff (60) provided therein.
  • the guidance flap (25) at least partially extends along the edge of the air intake opening (13). In a possible embodiment of the present invention, the guidance flap (25) is provided along all edges of the air intake opening (13).
  • the guidance flap (25) can be provided in an integrated or removable manner to the shock freezing chamber (20) or to the rear wall (12) of the freezing compartment (10).
  • At least one chamber wall (23) of the shock freezing chamber (20) is provided in an inclined form in a manner guiding cool air towards the sides of the foodstuff (60) which are far from the air intake opening (13).
  • the chamber ceiling (24) is provided in an inclined form towards the carrier element (30) from the side thereof which is close to the air intake opening (13).
  • the chamber walls (23) or the chamber ceiling (24) can be provided in concave form.
  • the shock freezing chamber (20) has at least one air output opening (22).
  • Said air output opening (22) is provided on at least one of the chamber walls (23).
  • the air output opening (22) is provided on the chamber base (21).
  • the air entering into the shock freezing chamber (20), sufficiently circulates, and it leaves the shock freezing chamber (20).
  • the total opening area provided for air output by means of at least one air output opening (22) is smaller than the total opening area provided for air intake by means of at least one air intake opening (13).
  • the output of air from the shock freezing chamber (20) is made difficult when compared with input of air, and since air sufficiently circulates inside the shock freezing chamber (20), more cooling is realized. Moreover, as the inner pressure increases, the number of contacts of the cool air particles to the foodstuff is increased, and thus, heat transfer efficiency is increased.
  • pluralities of air output openings (22) are provided on the chamber wall (23) or on the chamber walls (23). Accordingly, the air output openings (22) can be arranged in a predetermined arrangement. By means of this, movement direction of the air which circulates inside the shock freezing chamber (20) can be controlled, and the amount and the direction of said air output from the shock freezing chamber (20) can be controlled.
  • the foodstuff (60) can be effectively cooled from all sides in the desired manner.
  • the air intake opening (13) is at a position which is close to the chamber ceiling (24)
  • the air output openings (22) are provided on the chamber base (21), and the air stays in the shock freezing chamber (20) for the longest time duration possible.
  • the five air output openings (22) in the group are arranged on a linear line.
  • the two linear groups are formed in a parallel manner.
  • the shock freezing method applied in the subject matter domestic cooling device (1) comprises the following steps:
  • the foodstuff (60) is cooled from all sides for a sufficient duration, and it is subjected to the shock freezing process.
  • the shock freezing process is terminated when the temperature in the shock freezing chamber (20) reaches -40 °C or when it becomes lower than -40 °C.
  • the foodstuff (60) which is desired to be cooled, is prevented from burning as a result of cold.
  • the step of calculating the shock freezing duration (t2) can be carried out before the step of starting the shock freezing process.
  • the shock freezing duration (t2) is calculated according to the type and amount of the foodstuff (60) to be frozen.
  • the shock freezing duration is calculated according to the type (meat, fish, chicken, etc.) and amount of the foodstuff (60), and processing for longer or shorter durations is prevented.
  • Said shock freezing duration can be predefined according to the possible foodstuff type and amounts, or the user may be requested to enter this duration.
  • the air circulation in any compartment can be deactivated except the freezing compartment (10) accommodating the shock freezing chamber (20) of the domestic cooling device (1).
  • the whole cooling performance of the domestic cooling device (1) is guided to the freezing compartment (10).
  • the other air intake openings (13) are closed except the air intake opening (13) connected to the chamber (20) in the freezing compartment (10).
  • the shock freezing chamber (20) the air intake opening (13) connected to the chamber (20) in the freezing compartment (10).
  • the foodstuff (60) is effectively cooled from all sides, and it is possible to freeze the foodstuff (60) in the form of shock freezing.
  • deteriorations in the cell structure of the foodstuff (60) are prevented, and the foodstuff (60) is kept without losing its flavor and characteristics.

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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)

Claims (14)

  1. Haushaltskühlvorrichtung mit einem Gefrierfach (10), wobei mindestens eine Kammer (20) in dem Gefrierfach (10) vorgesehen ist, die mindestens einen teilweise abgeschlossenen Innenraum und mindestens eine Luftansaugöffnung (13), die kalte Luft in die Kammer (20) führt, und mindestens ein Trägerelement (30) zum Tragen von Lebensmitteln aufweist, das so in der Kammer (20) angeordnet ist, dass zwischen der Innenwand der Kammer (20) und dem Trägerelement (30) ein solcher Zwischenraum besteht, dass auf allen Seiten ein Luftstrom möglich ist, so dass das Lebensmittel, das eingefroren werden soll, wirksam gekühlt und einem Schockgefriervorgang unterzogen wird, wobei das Trägerelement (30) Wände in Gitterform umfasst, die ein Luftansaugen dort hinein ermöglichen und in von der Kammer (20) abnehmbarer Weise vorgesehen sind, dadurch gekennzeichnet, dass die Kammer (20) in von dem Gefrierfach (10) abnehmbarer Weise vorgesehen ist.
  2. Haushaltskühlvorrichtung nach Anspruch 1, wobei das Trägerelement (30) gegenüber der Luftansaugöffnung (13) vorgesehen ist.
  3. Haushaltskühlvorrichtung nach Anspruch 1 oder 2, wobei mindestens eine Leitklappe (25) vorgesehen ist, die zumindest teilweise an der Kante der Luftansaugöffnung (13) entlang verläuft und so die kalte Luft, die in die Kammer (20) hineinströmt, zum Trägerelement (30) hin leitet.
  4. Haushaltskühlvorrichtung nach Anspruch 3, wobei die Leitklappe (25) an den Kanten der Luftansaugöffnung (13) entlang verläuft.
  5. Haushaltskühlvorrichtung nach einem der vorhergehenden Ansprüche, wobei mindestens eine Kammerwand (23) vorgesehen ist, die in Bezug auf die Luftströmungsrichtung auf zumindest teilweise geneigte Weise verläuft und so die kalte Luft aus der Kammer (20) zu den Abschnitten des Trägerelements (30) hin leitet, die von der Luftansaugöffnung (13) entfernt liegen.
  6. Haushaltskühlvorrichtung nach Anspruch 5, wobei es sich bei der Kammerwand um eine Kammerdecke handelt, die an der Oberseite des Trägerelements definiert ist.
  7. Haushaltskühlvorrichtung nach einem der vorhergehenden Ansprüche, wobei die Kammer (20) mindestens eine Luftauslassöffnung (22) zum Ausströmenlassen der angesaugten kalten Luft umfasst.
  8. Haushaltskühlvorrichtung nach Anspruch 7, wobei die zum Ausströmenlassen von Luft mithilfe mindestens einer Luftauslassöffnung (22) vorgesehene Öffnungsgesamtfläche geringer ist als die zum Ansaugen von Luft mithilfe mindestens einer Luftansaugöffnung (13) vorgesehene Öffnungsgesamtfläche.
  9. Haushaltskühlvorrichtung nach Anspruch 7 oder 8, wobei an der Kammerwand mehrere Luftauslassöffnungen (22) vorgesehen sind.
  10. Haushaltskühlvorrichtung nach einem der vorhergehenden Ansprüche 7 bis 9, wobei die Luftauslassöffnung (22) am Kammerboden vorgesehen ist.
  11. Schockgefrierverfahren für eine Haushaltskühlvorrichtung nach Anspruch 1 mit folgenden Schritten:
    - Bereitstellen einer Haushaltskühlvorrichtung nach Anspruch 1,
    - Platzieren des Lebensmittels, das dem Schockgefrierprozess unterzogen werden soll, durch den Benutzer in das Trägerelement (30),
    - Starten des Schockgefrierprozesses und somit des Erfassens der Prozessdauer (t1) über das Bedienfeld (50) der Kühlvorrichtung,
    - Berechnen der Schockgefrierdauer (t2),
    - Vergleichen der Prozessdauer (t1) und der Schockgefrierdauer (t2) und Beenden des Schockgefrierprozesses, falls die Prozessdauer (t1) der Schockgefrierdauer (t2) entspricht oder länger als sie ist,
    dadurch gekennzeichnet, dass es das Deaktivieren von Luftzirkulation in jedem beliebigen Fach außer dem Gefrierfach (10), in dem die Schockgefrierkammer (20) der Haushaltskühlvorrichtung (1) untergebracht ist, in dem Schockgefrierprozess umfasst.
  12. Schockgefrierverfahren nach Anspruch 11, dadurch gekennzeichnet, dass es das Beenden des Schockgefrierprozesses umfasst, wenn die Temperatur in der Kammer (20) -40°C erreicht oder unter -40°C sinkt.
  13. Schockgefrierverfahren nach Anspruch 11 oder 12, dadurch gekennzeichnet, dass es das Berechnen der Schockgefrierdauer (t2) entsprechend der Art und der Menge des einzufrierenden Lebensmittels umfasst.
  14. Schockgefrierverfahren nach einem der Ansprüche 11 bis 13, dadurch gekennzeichnet, dass es das Schließen der anderen Luftansaugöffnungen (13) außer der mit der Kammer (20) in dem Gefrierfach (10) verbundenen Luftansaugöffnung (13) in dem Schockgefrierprozess umfasst.
EP16712058.3A 2015-04-21 2016-03-30 Kühlvorrichtung mit schockgefrieren für haushalte Active EP3286507B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR201504916 2015-04-21
PCT/EP2016/056889 WO2016169739A1 (en) 2015-04-21 2016-03-30 A domestic cooling device with shock freezing

Publications (2)

Publication Number Publication Date
EP3286507A1 EP3286507A1 (de) 2018-02-28
EP3286507B1 true EP3286507B1 (de) 2020-08-19

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US (1) US20180120015A1 (de)
EP (1) EP3286507B1 (de)
CN (1) CN107532840A (de)
WO (1) WO2016169739A1 (de)

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WO2012128208A1 (ja) * 2011-03-18 2012-09-27 株式会社ＭＡＲＳ Ｃｏｍｐａｎｙ 冷却庫
US20140290303A1 (en) * 2013-04-01 2014-10-02 Lg Electronics Inc. Refrigerator

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CN107532840A (zh) 2018-01-02
EP3286507A1 (de) 2018-02-28
WO2016169739A1 (en) 2016-10-27

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