EP0218560A2 - Réfrigerateur comprenant refroidissement avec des zones à des températures différentes - Google Patents

Réfrigerateur comprenant refroidissement avec des zones à des températures différentes Download PDF

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Publication number
EP0218560A2
EP0218560A2 EP86830280A EP86830280A EP0218560A2 EP 0218560 A2 EP0218560 A2 EP 0218560A2 EP 86830280 A EP86830280 A EP 86830280A EP 86830280 A EP86830280 A EP 86830280A EP 0218560 A2 EP0218560 A2 EP 0218560A2
Authority
EP
European Patent Office
Prior art keywords
refrigerating compartment
cooling circuit
zone
zones
elements
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.)
Granted
Application number
EP86830280A
Other languages
German (de)
English (en)
Other versions
EP0218560B1 (fr
EP0218560A3 (en
Inventor
Aurelio Boninsegni
Alberto Mariani
Piero Mariani
Natale Monaldi
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.)
Whirlpool EMEA SpA
Original Assignee
Merloni Elettrodomestici 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 Merloni Elettrodomestici SpA filed Critical Merloni Elettrodomestici SpA
Publication of EP0218560A2 publication Critical patent/EP0218560A2/fr
Publication of EP0218560A3 publication Critical patent/EP0218560A3/en
Application granted granted Critical
Publication of EP0218560B1 publication Critical patent/EP0218560B1/fr
Expired legal-status Critical Current

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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
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • 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

Definitions

  • the present invention relates to a cooling circuit having a static evaporator for a refrigerating compartment containing zones at different temperatures. More particularly, the present invention relates to a cooling circuit that allows two or more zones at different temperatures to be obtained within the refrigerating compartment of a refrigerator, employing a static evaporator as a cooling system.
  • refrigerators which are commercially available employing a static evaporator for cooling the refrigerating compartment have within said compartment a substantially uniform temperature distribution, except for a slight stratification of colder temperatures at the bottom.
  • the maximum temperature difference occurring between the various zones is of about 2-3°C.
  • ventilated evaporators are employed in freezing compartments as the dehydrating action of such evaporators on foodstuffs which are usually stored within the refrigerating compartment causes said foodstuffs to be badly conserved.
  • the ideal temperature for a good conservation of eggs, butter, milk etc. is of about 5°C, whereas in the case of vegetables and fruit the ideal temperature is of about 7° and for meat and fish it is of about 0°C.
  • the present invention proposes the realization of a static evaporator cooling system comprising a number of opportunely sized series-connected elements so as to obtain the desired temperature in each zone, said different temperatures being obtained also due to a suitable structural exploitation of cold air tendency to become layered toward the bottom of a space.
  • a cooling circuit having a static evaporator for a refrigerating compartment with different temperatures, said cooling circuit comprising a static evaporator consisting of different elements which are series- fed by the compressor in the rising direction, a number of conveyor wall means being provided within said refrigerating compartment, which means form a way for the flow of the descending cold air as well as port means which are arranged inferiorly with respect to said conveyor wall means, which port means form a way for the descending cold air through the zone of the refrigerating compartment adjacent to the zone wherein the compressor is housed.
  • said static evaporator is made up of two series-connected elements which are fed by the compressor in the rising direction, the first one of said elements having a cooling power lower than that of the second one which is arranged within the upper zone of said refrigerating compartment.
  • said conveyor wall means are arranged in the parallel direction with respect to the bottom wall of the refrigerator, in correspondence to the first of said elements of the static evaporator, so as to convey cold air coming from the upper zone of the refrigerating compartment into such zone.
  • said port means are arranged at the lower part with respect to the cooling zone that is cooled by said first element, so as to convey a part of cold air canalized between said conveyor wall means and said back wall of the refrigerating compartment in the lowest zone of said refrigerating compartment.
  • said elements of the static evaporator, said conveyor wall means and said port means are so sized as to obtain within the refrigerating compartment three zones at different temperatures, respectively with the highest temperature at the bottom part, the lowest temperature at the middle part and the middle temperature at the top part.
  • said three zones will be respectively at temperatures of about +7°C, about 0°C and about +5°C.
  • numbers 1 and 2 point out respectively the refrigerating compartment and the freezing compartment:
  • the cooling circuit of the refrigerating compartment 1 only will be disclosed, because the realization of the cooling circuit of the compartment 2 is independent of the object of the present invention.
  • the static evaporator is made up of a number of series-connected elements. Just two elements are shown in the figure, which are pointed out by the reference numbers 3 and 4, but it is clearly evident that a number of said elements can be provided which can be varied according to the specific needings.
  • the compressor of the cooling circuit is housed as usually within the housing 5 arranged in the back lower zone of the refrigerating compartment.
  • the element 4 of the evaporator shown in Figure 1 is of such a size as to obtain a temperature of about +5°C within in the zone 6 of the compartment 1; see also Figure 3.
  • the element 3 of said evaporator is in turn of such a size as to obtain an average temperature of about 0°C within the zone 7 of said compartment 1.
  • a conveyor wall 8 is arranged parallel to the bottom wall 9 of the compartment 1, which wall forms a forced way for the flow of cold air descending from the zone 6 as shown by the arrows 10, 11 and,.,after said air has heated subtracting heat from the environment of said zone 7 according to arrow 12 (see Figure 2).
  • Arrows 13 and 14 point out respectively the direction of cold air created by said element 4 within the zone 6 and of the hotter air coming from the bottom space.
  • the upper zone being at about +5°C whereas the lower zone is at about 0°C, i.e. at the optimal temperatures for storing foodstuffs such as milk, butter, cheese and the like, and meat.

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)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP86830280A 1985-10-11 1986-10-01 Réfrigerateur comprenant refroidissement avec des zones à des températures différentes Expired EP0218560B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT48657/85A IT1182908B (it) 1985-10-11 1985-10-11 Circuito di raffredamento ad evaporatore statico per scomparto frigorifero a temperature differenziate
IT4865785 1985-10-11

Publications (3)

Publication Number Publication Date
EP0218560A2 true EP0218560A2 (fr) 1987-04-15
EP0218560A3 EP0218560A3 (en) 1988-05-11
EP0218560B1 EP0218560B1 (fr) 1991-01-23

Family

ID=11267875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86830280A Expired EP0218560B1 (fr) 1985-10-11 1986-10-01 Réfrigerateur comprenant refroidissement avec des zones à des températures différentes

Country Status (4)

Country Link
EP (1) EP0218560B1 (fr)
DE (2) DE218560T1 (fr)
ES (1) ES2002831A6 (fr)
IT (1) IT1182908B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004015341A1 (fr) 2002-08-07 2004-02-19 BSH Bosch und Siemens Hausgeräte GmbH Appareil frigorifique avec interieur compartimente
WO2013098110A3 (fr) * 2011-12-30 2013-08-22 BSH Bosch und Siemens Hausgeräte GmbH Appareil de froid à usage domestique comportant un compartiment fraîcheur
US11402145B1 (en) 2020-03-24 2022-08-02 Sub-Zero Group, Inc. Split air flow system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19736916A1 (de) * 1997-08-25 1999-03-04 Aeg Hausgeraete Gmbh Kältegerät mit mehreren Bereichen unterschiedlicher Temperatur

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2707871A (en) * 1952-10-31 1955-05-10 Philco Corp Refrigeration apparatus
CH584874A5 (fr) * 1974-11-22 1977-02-15 Koch Ag
DE2928774C2 (de) * 1979-07-17 1984-03-22 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Gefrierschrank mit einem durch natürliche Konvektion gekühlten, großräumigen Gefrierraum
GB2079424B (en) * 1980-07-02 1984-11-07 Thorn Domestic Appliances Ltd Improvements in or relating to cold cabinets

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004015341A1 (fr) 2002-08-07 2004-02-19 BSH Bosch und Siemens Hausgeräte GmbH Appareil frigorifique avec interieur compartimente
RU2315925C2 (ru) * 2002-08-07 2008-01-27 Бсх Бош Унд Сименс Хаусгерете Гмбх Холодильник с разделенным на секции внутренним пространством
WO2013098110A3 (fr) * 2011-12-30 2013-08-22 BSH Bosch und Siemens Hausgeräte GmbH Appareil de froid à usage domestique comportant un compartiment fraîcheur
CN104024772A (zh) * 2011-12-30 2014-09-03 Bsh博世和西门子家用电器有限公司 具有冷存格的家用制冷器具
CN104024772B (zh) * 2011-12-30 2016-11-16 Bsh家用电器有限公司 具有冷存格的家用制冷器具
US11402145B1 (en) 2020-03-24 2022-08-02 Sub-Zero Group, Inc. Split air flow system

Also Published As

Publication number Publication date
EP0218560B1 (fr) 1991-01-23
DE218560T1 (de) 1987-09-03
IT8548657A0 (it) 1985-10-11
IT1182908B (it) 1987-10-05
EP0218560A3 (en) 1988-05-11
DE3677124D1 (de) 1991-02-28
ES2002831A6 (es) 1988-10-01

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