EP2304354B1 - Verfahren zur herstellung einer kühlvorrichtung - Google Patents

Verfahren zur herstellung einer kühlvorrichtung Download PDF

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Publication number
EP2304354B1
EP2304354B1 EP09738039.8A EP09738039A EP2304354B1 EP 2304354 B1 EP2304354 B1 EP 2304354B1 EP 09738039 A EP09738039 A EP 09738039A EP 2304354 B1 EP2304354 B1 EP 2304354B1
Authority
EP
European Patent Office
Prior art keywords
cover
air channel
air
fresh food
polyurethane material
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.)
Active
Application number
EP09738039.8A
Other languages
English (en)
French (fr)
Other versions
EP2304354A2 (de
Inventor
Veysi Ercan
Goksin Sayer
M. Cemal Hacioglu
Yuksel Atilla
Suat Yuksel
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
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Filing date
Publication date
Application filed by Arcelik AS filed Critical Arcelik AS
Publication of EP2304354A2 publication Critical patent/EP2304354A2/de
Application granted granted Critical
Publication of EP2304354B1 publication Critical patent/EP2304354B1/de
Active 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
    • 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
    • F25D17/045—Air flow control arrangements
    • 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
    • F25D2317/067—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 air ducts

Definitions

  • the present invention relates to a method of making a cooling device comprising a cover whereof the side facing the fresh food compartment is insulated.
  • cooling devices there are at least two compartments, generally one being a fresh food and the other a freezer, which are kept at different temperatures from each other.
  • the fresh food compartment is allocated for storing foods such as fruits and vegetables and the temperature is kept around 5°C.
  • the freezer compartment with a temperature around -18°C, foods such as meat and fish are placed that have to be stored for a longer time.
  • the evaporator in the freezer compartment forming the coldest place of the cooling device, is used.
  • the evaporator maintains to cool the hot air aspirated from the fresh food compartment and at the same time to hold the moisture contained in the hot air.
  • an air channel is provided with air blowing holes arranged thereon, for conveying the air activated by the fan into the fresh food compartment.
  • Thermostats for adjusting the temperatures of the fresh food and freezer compartments and a valve for controlling the air flow by changing the cross section of the air channel are disposed inside the air channel.
  • the valve and the thermostat are situated inside the air channel and safeguarded by a cover. The cover separates the air channel and the fresh food compartment and a knob is placed thereon so that the user can adjust the valve and/or the thermostat from inside the fresh food compartment.
  • the insulation of particularly the cover that houses the damper thermostat is tried to be accomplished by applying styrofoam material on the inner wall.
  • styrofoam material on the inner wall of the damper thermostat cover that having particularly intended surfaces, a desired configuration without any gap therebetween itself and the surface.
  • a gap remains between the styrofoam material and the cover surface, cold air seeps into these gaps. Accordingly, condensation appears on the cover surface, particularly on the side facing the fresh food compartment, since the side of the cover facing the air channel is in contact with cold air and the side facing the fresh food compartment is in contact with relatively hotter air.
  • a heater is disposed in contact with the surface of the cover facing the air channel. In this implementation, disposing styrofoam and heater on the cover increases both labor and costs and also the energy consumption.
  • AU452338 B2 discloses the use of expanded polyurethane insulation slabs in a housing of an evaporator.
  • the polyurethane insulation slabs are enclosed by outer moulded fibreglass casings.
  • EP0982553 A2 discloses a refrigerator having a housing installed at the centre of the rear wall of an refrigeration compartment, wherein a guide path is formed in the upper end of the housing for guiding cool air produced from an evaporator into the refrigeration compartment.
  • a damper for controlling the amount of cool air provided to the refrigeration compartment by opening/closing the guide path and a damper motor for driving the damper are built in the upper end of the housing. Temperature in the refrigeration compartment is controlled by using these constituents in a conventional manner.
  • a damper cover is incorporated in a front plate of the embodiment and a spacer is formed of an insulation material. The spacer is made thick to prevent condensation on the damper cover which results from a large amount of cool air passing through guide path.
  • DE4420149 A1 discloses a refrigerating system having an isolating panel with integrated cooling elements.
  • a cover plate for an evaporator bears a fan.
  • the cover plate is comprised of an isolating body enclosed by metal or plastics material. The isolating body helps avoiding condensation at the rear surface of the cover plate (with regard to evaporator).
  • US3280583 A discloses the use of an insulating evaporator housing in a refrigerator wherein for thermal insulation, a foamed polystyrene is foreseen.
  • a foamed polystyrene is foreseen.
  • polyurethane foam in which the foam cells are filled with a gas having a higher insulation value than air.
  • the aim of the present invention is the realization of a method for making a cooling device comprising a cover wherein condensation is prevented on the surface thereof facing the fresh food compartment.
  • the method for making a cooling device realized in order to attain the aim of the present invention is explicated in the claim.
  • the cooling device comprises a cover, fitted over the air channel in the fresh food compartment, the surface thereof facing inside the air channel is entirely clad by polyurethane material, safeguarding the thermostat and the shutter disposed in the air channel, and a knob mounted thereon for controlling the thermostat and the shutter.
  • the surface of the cover forming an intermediate surface where the cold and hot air meet, facing inside the air channel, is insulated such that no gap is left therebetween the insulation material and the surface wall.
  • the polyurethane material due to its feature, takes the shape of the mould and hence the shape of the cover by expanding and solidifying inside the mould and adheres to the surface of the cover facing the air channel without any gaps therebetween.
  • the surface of the cover having surfaces forming intermediate surfaces where cold air and hot air meet inside the compartment, safeguarding for example the damper thermostat disposed inside the air channel, is effectively insulated.
  • the use of a heater is not necessary, maintaining savings in cost, labor, and energy.
  • the cooling device (1) produced according to the method of the present invention comprises a freezer compartment (2) wherein foods to be frozen are placed, a fresh food compartment (3), kept at a higher temperature than the freezer compartment (2), wherein foodstuffs to be cooled are emplaced, at least one evaporator (4) for cooling the air circulated in the compartments (2, 3) one or more fans (5) for activating the air cooled by the evaporator (4), an air channel (7) for delivering the air activated by the fan (5) into the fresh food compartment (3), one or more thermostats (10) disposed inside the air channel (7) for regulating the temperatures of the compartments (2, 3), a shutter (9) that controls the air flow by changing the cross section of the air channel (7), a cover (6) that safeguards the shutter (9) and the thermostat (10), fitted over the air channel (7) in the fresh food compartment (3), such that one side faces the air channel (7) and the other side the fresh food compartment (3), and a knob (8) mounted on the cover (6) so that the user can adjust the shutter (9)
  • the surface of the cover (6) facing the air channel (7) and in contact with the cold air passing through the air channel (7) is clad by polyurethane material, taking the shape of the said surface and without a gap between itself and the said surface ( Figure 1 and Figure 2 ).
  • the formation of condensation on the surface of the cover (6) facing inside of the fresh food compartment (3) and contacting with relatively hotter air is prevented.
  • the polyurethane material adheres on the cover (6), preferably made of plastic, by itself.
  • the use of a heater for preventing condensation is not necessary since the polyurethane material adheres to the cover (6) surface and entirely takes the shape of the surface.
  • mounting the polyurethane material on the surface does not require additional time and labor consumption.
  • the thermostat (10) is a damper thermostat and directly controls the shutter (9) that changes the cross section of the air channel (7).
  • the cover (6) is produced from polyurethane material.
  • the side of the cover (6) facing inside the air channel (7) is made directly from polyurethane material.
  • polyurethane material is poured into the mould and the mould is closed. The polyurethane material taking the shape of the mould and hence the shape of the cover (6) by expanding and solidifying inside the mould is taken out and is mounted over the air channel (7) in the fresh food compartment (3).
  • the outer surface of the polyurethane material taken out of the mould is painted.
  • the surface of the mould is painted in any color desired.
  • polyurethane material is poured into the mould and the mould is closed.
  • the polyurethane material taking the shape of the mould and hence the shape of the cover (6) by expanding and solidifying inside the mould is taken out with the side facing the fresh food compartment (3) painted.
  • the cover (6) that is subsequently mounted on the air channel (7) in the fresh food compartment (3), and having particularly indented surfaces, is insulated without any gaps between the polyurethane material and the cover (6) as a result of cladding the side thereof facing the air channel (7) by polyurethane material. Accordingly, formation of condensation on the cover (6) surface facing the fresh food compartment (3) is prevented. This removes the necessity of heater usage thereby maintaining savings in cost, labor, and energy.

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)

Claims (1)

  1. Verfahren zum Herstellen einer Kühlvorrichtung (1), wobei die Kühlvorrichtung Folgendes umfasst
    ein Gefrierfach (2), in das einzufrierende Lebensmittel gelegt werden,
    ein Frischhaltefach (3), das auf einer höheren Temperatur als das Gefrierfach (2) gehalten wird und in das zu kühlende Lebensmittel gelegt werden,
    wenigstens einen Verdampfer (4) zum Kühlen der Luft, die in den Fächern (2, 3) zirkuliert, ein oder mehrere Gebläse (5) zum Aktivieren der vom Verdampfer (4) gekühlten Luft,
    einen Luftkanal (7) zum Leiten der durch das Gebläse (5) aktivierten Luft in das Frischhaltefach (3),
    ein oder mehrere Thermostate (10), die im Inneren des Luftkanals (7) angeordnet sind, um die Temperaturen der Fächer (2, 3) zu regulieren,
    einen Verschluss (9), der den Luftstrom durch Ändern des Querschnitts des Luftkanals (7) steuert,
    eine Abdeckung (6), die den Verschluss (9) und das Thermostat (10) schützt, wobei die Abdeckung (6) über den Luftkanal (7) im Frischhaltefach (3) gesetzt ist, derart, dass eine Seite der Abdeckung (6) dem Luftkanal (7) zugewandt ist und die andere Seite der Abdeckung (6) dem Frischhaltefach (3) zugewandt ist, wobei die Abdeckung (6) eine Fläche aufweist, die dem Luftkanal (7) zugewandt ist und in Kontakt mit der kalten Luft steht, die durch den Luftkanal (7) strömt, und mit Polyurethanmaterial verkleidet ist, wobei das Polyurethanmaterial die Form der Fläche annimmt, ohne einen Spalt zwischen dem Polyurethanmaterial und der Fläche zu belassen, und
    einen Knopf (8), der an der Abdeckung (6) angebracht ist, so dass der Benutzer den Verschluss (9) und das Thermostat (10) einstellen kann,
    wobei das Verfahren folgende Schritte umfasst
    - Anordnen der Fläche der Abdeckung (6), die dem Inneren des Frischhaltefachs (3) zugewandt ist, auf einer Gussform,
    - Gießen des Polyurethanmaterials auf die Innenwand dieser Fläche,
    - Schließen der Form, derart, dass das Polyurethanmaterial die Form der Gussform und damit die Form der Fläche der Abdeckung (6) annimmt, indem es sich in der Gussform ausdehnt und erhärtet.
EP09738039.8A 2008-05-02 2009-04-22 Verfahren zur herstellung einer kühlvorrichtung Active EP2304354B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200803071 2008-05-02
PCT/EP2009/054765 WO2009132995A2 (en) 2008-05-02 2009-04-22 A cooling device

Publications (2)

Publication Number Publication Date
EP2304354A2 EP2304354A2 (de) 2011-04-06
EP2304354B1 true EP2304354B1 (de) 2016-03-23

Family

ID=41181108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09738039.8A Active EP2304354B1 (de) 2008-05-02 2009-04-22 Verfahren zur herstellung einer kühlvorrichtung

Country Status (2)

Country Link
EP (1) EP2304354B1 (de)
WO (1) WO2009132995A2 (de)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280583A (en) * 1965-05-12 1966-10-25 Gen Electric Combination refrigerator
AU452338B2 (en) * 1970-10-21 1974-09-05 Email Limited Refrigeration apparatus
JPH04359779A (ja) * 1991-06-06 1992-12-14 Hitachi Ltd 冷蔵庫
DE4420149A1 (de) * 1994-06-09 1995-12-14 Josef Huemer Kühlanlage mit Kühlraum, sowie Isolierpaneel mit integrierten Luftkühlerbauelementen für einen Kühlraum
DE69528541T2 (de) * 1994-11-30 2003-02-20 Samsung Electronics Co Ltd Temperaturregelungsverfahren eines Kühlschranks durch die Regelung der Austrittsrichtung der Kühlluft
JP3337927B2 (ja) 1996-12-13 2002-10-28 株式会社東芝 冷蔵庫
JP4359779B2 (ja) 2006-01-23 2009-11-04 ソニー株式会社 音響再生装置および音響再生方法

Also Published As

Publication number Publication date
WO2009132995A2 (en) 2009-11-05
WO2009132995A3 (en) 2009-12-23
EP2304354A2 (de) 2011-04-06

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