EP1966550B1 - Dispositif de refroidissement - Google Patents

Dispositif de refroidissement Download PDF

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Publication number
EP1966550B1
EP1966550B1 EP06830732A EP06830732A EP1966550B1 EP 1966550 B1 EP1966550 B1 EP 1966550B1 EP 06830732 A EP06830732 A EP 06830732A EP 06830732 A EP06830732 A EP 06830732A EP 1966550 B1 EP1966550 B1 EP 1966550B1
Authority
EP
European Patent Office
Prior art keywords
air
freezer compartment
special purpose
propeller
evaporator
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
EP06830732A
Other languages
German (de)
English (en)
Other versions
EP1966550A2 (fr
Inventor
Fatih Demiray
Soner Kahraman
Turgay Ercan
Emre Arisoy
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of EP1966550A2 publication Critical patent/EP1966550A2/fr
Application granted granted Critical
Publication of EP1966550B1 publication Critical patent/EP1966550B1/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
    • 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
    • F25D2317/061—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 through special compartments
    • 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
    • F25D2317/066—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 air supply
    • F25D2317/0665—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 air supply from the top
    • 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
    • F25D2317/0681—Details thereof
    • 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
    • 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 cooling device comprising a compartment utilized in fast freezing of food.
  • Cooling devices comprise a cooling compartment wherein food and beverages are stored and a freezing compartment that provides storing of food by freezing. When new foods are emplaced in the freezing compartment, these foods have to be frozen fastly and the temperature of the foods previously emplaced in the cooling compartment should be kept at the same level without oscillating much. Special purpose freezer compartments emplaced in the freezing compartment are utilized for the fast freezing process.
  • Foods have to be suitably frozen in order to store them for a long period of time without losing their vitamin and mineral values. If the freezing process is slow, the water molecules crystallize such that the cell membranes are damaged and the food loses its nutritional value. In the special purpose freezer compartments the acceleration of the freezing process is maintained by various methods.
  • a cooling device according to the preamble of claim 1 is known, for example, from EP-A-1 074 802 .
  • the object of the present invention is the realization of a cooling device comprising a special purpose freezer compartment that provides fast freezing of the foods emplaced therein.
  • the cooling and the freezer compartments and also a special purpose freezer compartment wherein fast freezing process can be done can all be cooled by utilizing only one evaporator and a fan.
  • the fan utilized comprises two separate coaxial propellers arranged on the same shaft. While the special purpose freezer compartment is cooled by one of the propellers, the cooling and the freezer compartments are cooled by the other. In order not to cool the special purpose freezer compartment when not required, a shutter is used, regulating aspiration of air from the special purpose freezer compartment, situated at the outlet of the special purpose freezer compartment.
  • one of the propellers is emplaced in the special purpose freezer compartment.
  • the special purpose freezer compartment when a second shutter situated at the inlet of the special purpose freezer compartment and the shutter situated at the outlet of the special purpose freezer compartment are closed at the same time, the special purpose-freezer compartment is isolated from the inner volume of the cooling compartment.
  • the special purpose freezer compartment by means of a heater disposed in the special purpose freezer compartment, the special purpose freezer compartment can also be used to thaw frozen food.
  • a separator situated inside the special purpose freezer compartment the air blown by the propeller inside the special purpose freezer compartment can be circulated inside the compartment. By operating the heater simultaneously, the air can be heated and the frozen foods can be thawed.
  • the propellers are disposed outside the special purpose freezer compartment.
  • the propeller blowing air into the special purpose freezer compartment aspirates air over the entire surface of the evaporator whereas the.propeller blowing air into the cooling and freezer compartments aspirate air from a portion of the evaporator.
  • the air blown into the special purpose freezer compartment is provided to be colder than the air blown into the cooling and freezer compartments.
  • Figure 1 - is the schematic view of a cooling device.
  • Figure 2 - is the schematic view of a cooling device in another embodiment of the present invention.
  • Figure 3 - is the schematic view of a cooling device in yet another embodiment of the present invention.
  • the cooling device (1) comprises a cooling compartment (2) wherein food and beverages are stored, a freezer compartment (3) providing storing of food by freezing, and a special purpose freezer compartment (4) situated in the freezer compartment (3) that provides fast freezing of the foods emplaced therein.
  • the cooling device (1) furthermore comprises a compressor (5) providing to carry out the cooling cycle, a condenser (6), an evaporator (7), and a fan (8) that aspirates air over the evaporator (7) to cool the compartments (2,3 and 4).
  • the fan (8) comprises a motor (9), a shaft (10) connected to the motor (9); a first propeller (11) situated on the shaft (10), by rotating together with the shaft (10) that provides the air that is cooled as it passes over the evaporator (7) to be directed to the cooling and freezer compartments (2 and 3), and a second propeller (12) situated on the shaft (10), by rotating together with the shaft (10) that provides the air cooled as it passes over the evaporator (7) to be directed to the special purpose freezer compartment (4).
  • the geometry of the propellers (11 and 12) are determined according to the cooling requirements of the compartments (2,3 and 4).
  • the cooling device (1) comprises an air suction channel (13) wherein the evaporator (7) is emplaced, a first air distribution channel (14) that provides to direct the air blown by the fan (8) to the cooling and freezer compartments (2 and 3), a second air distribution channel (15) that provides to direct the air blown by the fan (8) to the special purpose freezer compartment (4), an opening (16) through which the air blown by the second propeller (12) leaves the special purpose freezer compartment (4), and a shutter (17) that provides to direct the air blown by the fan (8) to one of the air distribution channels (14 and 15) ( Figure 1 ).
  • the air flowing from the opening (16) is delivered to the freezer compartment (3) or directly to the space wherein the evaporator (7) is situated.
  • the cooling device (1) of the present invention when the cooling process is started by actuating the compressor (5) and the fan (8), if only the cooling and freezer compartments (2 and 3) will be cooled, the opening (16) is closed by the shutter (17). In this case, the air blown by the first propeller (11) reaches to the cooling and freezer compartments (2 and 3) passing through the first air distribution channel (14). When the shutter (17) closes the opening (16), suction cannot be made from the special purpose freezer compartment (4). Therefore, the special purpose freezer compartment (4) cannot be cooled since aspiration can't be made over the evaporator (7) by the second propeller (12).
  • the cooling device (1) of the present invention when the cooling process is started by actuating the compressor (5) and the fan (8), if fast freezing of the foods emplaced in the special purpose freezer compartment (4) is desired, the shutter (17) is changed to the open position, allowing air flow from the opening (16).
  • the air blown by the first propeller (11) reaches the cooling and freezer compartments (2 and 3) passing through the first air distribution channel (14); the air blown by the second propeller (12) reaches the special purpose freezer compartment (4), passing through the second air distribution channel (15).
  • the air that is heated while cooling the foods in the compartments (2,3 and 4) is aspirated by the fan (8) by way of the air suction channel (13) and passed over the evaporator (7). Passing the air over the entire surface of the evaporator (7) and circulating directing in the special purpose freezer compartment (4) by the second propeller (12) accelerates the cooling process.
  • the second propeller (12) is situated in the special purpose freezer compartment (4).
  • the cooling device (1) comprises a second shutter (18) situated in the second air distribution channel (15), a separator (20) disposed in the special purpose freezer compartment (4), providing to create an air circulation in the special purpose freezer compartment (4) while the second propeller (12) rotates, and a heater (19) situated in the special purpose freezer compartment (4) that provides to heat the frozen foods that are desired to be thawed ( Figure 2 ).
  • the special purpose freezer compartment (4) can be utilized for fast freezing or for thawing of frozen foods.
  • the separator (20) preferably extends between two opposite walls of the special purpose freezer compartment (4). The air blown by the second propeller (12) flows over the separator (20) and makes a return from under the separator (20) by means of the gap between the separator (20) and the front and rear walls.
  • the first shutter (17) is changed to the closed position to prevent air flow from the opening (16)
  • the second shutter (18) is changed to the closed position to prevent air flow from the second air distribution channel (15).
  • the second propeller (12) that starts to rotate when the fan (8) is actuated, will start to circulated the air inside the special purpose freezer compartment (4).
  • the air circulated by the second propeller (12) is heated by the heater (19) providing to thaw the frozen foods in the special purpose freezer compartment (4). Since air flow is not allowed from the opening (16) by closing the first shutter (17), and from the second air distribution channel (15) by closing the second shutter (18), the-air heated by the heater (19) is prevented from flowing into the cooling and freezer compartments (2 and 3).
  • the second propeller (12) is situated outside the special purpose freezer compartment (4).
  • the second propeller (12) aspirates air from the entire surface of the evaporator (7)
  • the first propeller (11) aspirates the air that passes from a portion of the evaporator (7) surface ( Figure 3 ).
  • the cooling device (1) is operated similar to the first embodiment.
  • the air blown by the first propeller (11) reaches the cooling and freezer compartments (2 and 3) passing through the first air distribution channel (14); the air blown by the second propeller (12) reaches the special purpose freezer compartment (4), passing through the second air distribution channel (15). While the air blown by the first propeller (11) is passed over some portion of the evaporator (7) surface, the cooling process is further accelerated by passing the air blown by the second propeller (12) over the entire surface of the evaporator (7).

Landscapes

  • 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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Freezing, Cooling And Drying Of Foods (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Claims (4)

  1. Un dispositif de refroidissement (1) comprenant un compartiment de réfrigération (2) dans lequel les aliments et les boissons sont stockés, un compartiment de congélation (3) qui assure le stockage des aliments par la congélation, et un compartiment congélateur à objectif spécifique (4) situé dans le compartiment congélateur (3) qui fournit un accès rapide à la congélation des aliments qui y sont placés, un compresseur (5), un condenseur (6), un évaporateur (7) et un ventilateur (8) que aspire de l'air sur l'évaporateur (7) pour refroidir les compartiments (2, 3 et 4), caractérisé par le ventilateur (8) ayant un moteur (9), un arbre (10) relié au moteur (9), une première hélice (11) située sur l'arbre (10), en rotation avec l'arbre (10), qui fournit de l'air quand il passe au-dessus de l'évaporateur (7), cet air étant dirigé vers le circuit de refroidissement et de congélation (2 et 3), et une deuxième hélice (12) située sur l'arbre (10), en rotation avec l'arbre (10) qui fournit de l'air quand il passe au-dessus de l'évaporateur (7), cet air étant dirigé vers compartiment congélateur à objectif spécifique (4).
  2. Un dispositif de refroidissement (1) selon la Revendication 1, caractérisé par un canal d'aspiration d'air (13) où l'évaporateur (7) est mis en place, un premier canal de distribution d'air (14), qui assure la direction de l'air soufflé par le ventilateur (8) vers les compartiments de refroidissement et de congélation (2 et 3), un deuxième canal de distribution d'air (15), qui assure la direction de l'air soufflé par le ventilateur (8) vers le compartiment congélateur à objectif spécifique (4), une ouverture (16) par lequel l'air soufflé par la deuxième hélice (12) quitte le compartiment congélateur à objectif spécifique (4), et un obturateur (17), qui assure la direction de l'air soufflé par le ventilateur (8) vers l'un des canaux de distribution d'air (14 et 15).
  3. Un dispositif de refroidissement (1) selon la Revendication 2, caractérisé par une deuxième hélice (12) située dans le compartiment congélateur à objectif spécifique (4), un deuxième obturateur (18) situé dans le deuxième canal de distribution d'air (15), un séparateur (20) disposé dans le compartiment congélateur à objectif spécifique (4), assurant la création d'une circulation d'air dans le compartiment congélateur à objectif spécifique (4) lorsque la deuxième hélice (12) est mise en action et un appareil de chauffage (19) situé dans le compartiment congélateur à objectif spécifique (4) qui assure de la chaleur aux aliments surgelés souhaités pour les décongeler.
  4. Un dispositif de refroidissement (1) selon l'une quelconque des revendications précédentes, caractérisé par une deuxième hélice (12) située à l'extérieur du compartiment congélateur à objectif spécifique (4) et qui aspire de l'air sur la surface entière de l'évaporateur (7), et une première hélice (11) qui aspire de l'air sur une partie de la surface de l'évaporateur (7).
EP06830732A 2005-12-29 2006-12-20 Dispositif de refroidissement Not-in-force EP1966550B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200505319 2005-12-29
PCT/EP2006/069955 WO2007074116A2 (fr) 2005-12-29 2006-12-20 Dispositif de refroidissement

Publications (2)

Publication Number Publication Date
EP1966550A2 EP1966550A2 (fr) 2008-09-10
EP1966550B1 true EP1966550B1 (fr) 2009-04-08

Family

ID=38134105

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06830732A Not-in-force EP1966550B1 (fr) 2005-12-29 2006-12-20 Dispositif de refroidissement

Country Status (5)

Country Link
EP (1) EP1966550B1 (fr)
AT (1) ATE428096T1 (fr)
DE (1) DE602006006222D1 (fr)
ES (1) ES2323436T3 (fr)
WO (1) WO2007074116A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110873492A (zh) * 2018-08-30 2020-03-10 青岛海尔特种电冰柜有限公司 制冷设备及其控制方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TR200908597A2 (tr) * 2009-11-12 2010-08-23 Vestel Beyaz Eşya Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇@ Bir dondurucu haznesi
ES2726523T3 (es) * 2011-08-25 2019-10-07 Hefei Midea Refrigerator Co Refrigerador

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3080727A (en) * 1961-08-14 1963-03-12 Philco Corp Refrigeration defrosting
US5899083A (en) * 1997-03-12 1999-05-04 Whirlpool Corporation Multi-compartment refrigeration system
IT1313157B1 (it) * 1999-08-05 2002-06-17 Candy Spa Frigorifero con scomparto per rapido raffreddamento dei cibi
WO2001029493A1 (fr) * 1999-10-20 2001-04-26 Daewoo Electronics Co., Ltd. Systeme de circulation d'air de refroidissement pour refrigerateur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110873492A (zh) * 2018-08-30 2020-03-10 青岛海尔特种电冰柜有限公司 制冷设备及其控制方法

Also Published As

Publication number Publication date
WO2007074116A3 (fr) 2007-08-30
WO2007074116A2 (fr) 2007-07-05
EP1966550A2 (fr) 2008-09-10
DE602006006222D1 (de) 2009-05-20
ATE428096T1 (de) 2009-04-15
ES2323436T3 (es) 2009-07-15

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