EP0298347A2 - Kühlschrank mit Schnellabkühlung - Google Patents

Kühlschrank mit Schnellabkühlung Download PDF

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Publication number
EP0298347A2
EP0298347A2 EP88110315A EP88110315A EP0298347A2 EP 0298347 A2 EP0298347 A2 EP 0298347A2 EP 88110315 A EP88110315 A EP 88110315A EP 88110315 A EP88110315 A EP 88110315A EP 0298347 A2 EP0298347 A2 EP 0298347A2
Authority
EP
European Patent Office
Prior art keywords
refrigerator
compartment
rapid
cooling feature
control means
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.)
Withdrawn
Application number
EP88110315A
Other languages
English (en)
French (fr)
Other versions
EP0298347A3 (de
Inventor
Paolo Marega
Luciano Pesavento
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.)
Industrie Zanussi SpA
Original Assignee
Industrie Zanussi 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 Industrie Zanussi SpA filed Critical Industrie Zanussi SpA
Publication of EP0298347A2 publication Critical patent/EP0298347A2/de
Publication of EP0298347A3 publication Critical patent/EP0298347A3/de
Withdrawn legal-status Critical Current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
    • 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
    • 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
    • F25D2317/065—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 return
    • F25D2317/0655—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 return through 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
    • F25D2317/066—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
    • F25D2331/00—Details or arrangements of other cooling or freezing apparatus not provided for in other groups of this subclass
    • F25D2331/80—Type of cooled receptacles
    • F25D2331/803—Bottles
    • 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
    • F25D2400/28—Quick cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/10—Sensors measuring the temperature of the evaporator

Definitions

  • the present invention relates to an automatic refrigerator, particularly of the domestic type, comprising an enclosed compartment for the storage of foods at a nominal temper­ature of between about 0 and 10 °C.
  • a refrigerator with rapid-cooling feature comprising an automatically operating refrigerant circuit for maintain­ing at least one enclosed compartment at a suitable temperature for the storage of foods.
  • a refrigerator of this type is characterized by comprising forced air circ­ulation means disposed in said compartment, said forced air circulation means being normally substantially inoper­ative and adapted to be selectively activated by the use of associated control means.
  • the refrigerator 7 comprises an enclosed compartment 5 which is accessible through a door 6.
  • Compartment 5 is refrigerated by an evaporator 8 belonging to a conventional refrigerant circuit otherwise including a compressor 9, a condenser 10, a dehydrating filter 11 and a lamination element 12.
  • a thermostat device 13 for controll­ing the compartment temperature is itself controlled by a sensor 14 adapted to sense the temperature of evaporator 8 for determining the initiation and duration of the periodic operating cycles of compressor 9.
  • Thermostat device 13 may of course also be controlled by a sensor (not shown) adapted to sense the temperature within the volume of compartment 5.
  • the refrigerant circuit is operated to main­tain the interior of compartment 5 at a suitable temper­ature for the storage of foods 15, comprised between about 0 and 10 °C.
  • At least one motor-driven fan 16 which is normally inoperative (or operating at a low speed) and adapted to be selectively activated by the user by means of manually operated control means comprising for instance a switch 17 disposed on an outer control panel of the appliance.
  • switch 17 is normally open and connected in series with the electric motor 18 of fan 16 between two electric power supply phases 19, 20.
  • an indicator device such as a warning lamp 21 or the like disposed on the control panel of the appliance.
  • Fan 16 the rotational speed of which may optionally be variable by means of a variable resistor or the like (not shown), creates within compartment 5 a closed-­circuit forced air circulation (represented by arrows in fig. 1) enveloping foods 15. Independent of the actual temperature values, this air flow substantially accelerates the thermal exchange between the air volume within compart­ment 5 and foods 15, so that the latter are rapidly cooled in conformity with the object of the invention.
  • Warning lamp 21 is of course provided for indicating to the user the operating state of fan 16 to thereby avoid oper­ating phases of excessive duration.
  • thermo­static safety switch 22 is connected in series with switch 17 and motor 18 between phases 19 and 20.
  • thermostatic safety switch 22 is preferably located in the lowermost (and thus coolest) part of compartment 5. It is normally closed and adapted to open when the temperatrue within compartment 5 drops below a predetermined minimum value of for example -1 °C.
  • the operation of the refrigerator is substantially the same as described above, with the only difference that safety switch 22 automatically deactivates fan 16, even with switch 17 closed, when the user has forgotten to switch back to normal operation of the refrig­erator.
  • indicator device 21 may also be omitted, although it is preferably retained an connected parallel to motor 18 and safety switch 22 so as to indicate the closed condition of switch 17 in any case.
  • FIG. 4 Another modified embodiment rendering the provision of indicator device 21 superfluous is shown in fig. 4, in which manually operable switch 17 cooperates with a timer 23, for instance of the mechanical type, operable to determine the duration of the closed state of switch 17 and preferably adjustable in a known manner.
  • the described refrigerator may undergo various modifications within the scope of the invention.
  • the described solutions may thus be combined in any suitable manner, and the means for creating the forced air circulation may be of any suitable construction.
  • Further additionally manually operable switch 17 may be replaced by an automatic switch, for instance a thermostat-controlled switch responsive to the temperatore of at least some of the stored foods.
  • a switch of this type may for instance be provided with a per se known thermosensor adapted to be placed in contact with the foods and preferably adjustable for selecting a suitable cooling temperature.

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)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
EP88110315A 1987-07-09 1988-06-28 Kühlschrank mit Schnellabkühlung Withdrawn EP0298347A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT45733/87A IT1220061B (it) 1987-07-09 1987-07-09 Frigorifero a raffreddamento rapido
IT4573387 1987-07-09

Publications (2)

Publication Number Publication Date
EP0298347A2 true EP0298347A2 (de) 1989-01-11
EP0298347A3 EP0298347A3 (de) 1989-05-31

Family

ID=11257879

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88110315A Withdrawn EP0298347A3 (de) 1987-07-09 1988-06-28 Kühlschrank mit Schnellabkühlung

Country Status (2)

Country Link
EP (1) EP0298347A3 (de)
IT (1) IT1220061B (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU631604B2 (en) * 1989-02-28 1992-12-03 Simpson Pty Limited Improved freezer
EP1006325A2 (de) * 1998-11-30 2000-06-07 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät
US6463752B2 (en) 1999-02-26 2002-10-15 Maytag Corporation Refrigerator food storage compartment with quick chill feature
US6612116B2 (en) 1999-02-26 2003-09-02 Maytag Corporation Thermoelectric temperature controlled refrigerator food storage compartment
WO2013000950A3 (en) * 2011-06-27 2013-06-20 Arcelik Anonim Sirketi A cooling device comprising a knob providing the adjustment of the compartment temperature
JP2020034167A (ja) * 2018-08-27 2020-03-05 日立グローバルライフソリューションズ株式会社 冷蔵庫

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518242A (en) * 1944-04-05 1950-08-08 Bastian Blessing Co Refrigerator having an air pump circuit
US3659429A (en) * 1970-03-25 1972-05-02 Westinghouse Electric Corp Refrigerator-freezer with fast chill arrangement
US3747361A (en) * 1971-10-05 1973-07-24 Westinghouse Electric Corp Control arrangement for refrigerator-freezer having fast chill feature
US3759053A (en) * 1971-12-15 1973-09-18 Westinghouse Electric Corp Air control for fresh food compartment quick chill operation
US4021213A (en) * 1975-08-25 1977-05-03 Mcgraw-Edison Company Food storage refrigeration cabinet having optional fast chill cycle
US4358932A (en) * 1981-09-03 1982-11-16 General Electric Company Control system for refrigerator with through-the-door quick-chilling service

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2518242A (en) * 1944-04-05 1950-08-08 Bastian Blessing Co Refrigerator having an air pump circuit
US3659429A (en) * 1970-03-25 1972-05-02 Westinghouse Electric Corp Refrigerator-freezer with fast chill arrangement
US3747361A (en) * 1971-10-05 1973-07-24 Westinghouse Electric Corp Control arrangement for refrigerator-freezer having fast chill feature
US3759053A (en) * 1971-12-15 1973-09-18 Westinghouse Electric Corp Air control for fresh food compartment quick chill operation
US4021213A (en) * 1975-08-25 1977-05-03 Mcgraw-Edison Company Food storage refrigeration cabinet having optional fast chill cycle
US4358932A (en) * 1981-09-03 1982-11-16 General Electric Company Control system for refrigerator with through-the-door quick-chilling service

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU631604B2 (en) * 1989-02-28 1992-12-03 Simpson Pty Limited Improved freezer
EP1006325A2 (de) * 1998-11-30 2000-06-07 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät
EP1006325A3 (de) * 1998-11-30 2000-09-27 BSH Bosch und Siemens Hausgeräte GmbH Kältegerät
US6463752B2 (en) 1999-02-26 2002-10-15 Maytag Corporation Refrigerator food storage compartment with quick chill feature
US6612116B2 (en) 1999-02-26 2003-09-02 Maytag Corporation Thermoelectric temperature controlled refrigerator food storage compartment
WO2013000950A3 (en) * 2011-06-27 2013-06-20 Arcelik Anonim Sirketi A cooling device comprising a knob providing the adjustment of the compartment temperature
JP2020034167A (ja) * 2018-08-27 2020-03-05 日立グローバルライフソリューションズ株式会社 冷蔵庫

Also Published As

Publication number Publication date
EP0298347A3 (de) 1989-05-31
IT1220061B (it) 1990-06-06
IT8745733A0 (it) 1987-07-09

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