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WO2018202365A1 - Réfrigérateur comprenant une doublure intérieure en plastique - Google Patents

Réfrigérateur comprenant une doublure intérieure en plastique Download PDF

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Publication number
WO2018202365A1
WO2018202365A1 PCT/EP2018/058194 EP2018058194W WO2018202365A1 WO 2018202365 A1 WO2018202365 A1 WO 2018202365A1 EP 2018058194 W EP2018058194 W EP 2018058194W WO 2018202365 A1 WO2018202365 A1 WO 2018202365A1
Authority
WO
WIPO (PCT)
Prior art keywords
polyurethane
refrigerator
inner lining
lower layer
polystyrene based
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.)
Ceased
Application number
PCT/EP2018/058194
Other languages
English (en)
Inventor
Hakan OZKAN
Emre DEMIRTAS
Serhat CATALORMAN
Sebehattin SEN
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
Priority to PL18715631T priority Critical patent/PL3619485T3/pl
Priority to EP18715631.0A priority patent/EP3619485B1/fr
Publication of WO2018202365A1 publication Critical patent/WO2018202365A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • F25D23/065—Details
    • F25D23/066—Liners

Definitions

  • the present invention relates to a refrigerator in which plastic material is used in producing the inner lining of its body.
  • quadrilateral plates made of polystyrene (HIPS - High Impact Polystyrene) material by way of extrusion, are used, and the net shape to said plates is given by thermoforming.
  • polystyrene HIPS - High Impact Polystyrene
  • polyurethane In the refrigerator body, generally polyurethane is used as heat insulation material. Polyurethane expands and solidifies during production once it is injected into the refrigerator body. During this process, pockets form inside the polyurethane in case polyurethane is not distributed homogeneously, leading in time to collapses on the body walls contacting the polyurethane.
  • WO2013038003 discloses a cooler comprising a body having an inner lining, an outer wall, an insulation volume provided between the inner lining and the outer wall and an insulation material filled into the insulation volume, in which the pockets formed within the insulation material are eliminated.
  • a net enabling homogeneous distribution of polyurethane is placed on the surface of the inner lining of the refrigerator facing the insulation volume, but said netting implementation causes a high increase in refrigerator production costs.
  • the “corona” process used to adapt the inner lining with the polyurethane in terms of homogeneous distribution of the polyurethane, is also an application increasing the costs.
  • the aim of the present invention is to realize a refrigerator having an inner lining whose surface roughness is increased during production so as to improve adherence to the polyurethane in the insulation volume within the refrigerator body.
  • the inner linings of the body and the doors are made of plastic plates by way of extrusion.
  • the inner lining has a three layered structure, and comprises an upper layer made of glossy polystyrene based plastic material, forming the inner surface of the inner lining facing the compartments, an interlayer resistant to the chemicals in polyurethane, and a lower layer contacting the polyurethane injected in the insulation volume between the inner lining and outer wall of the body, wherein the roughness of its surface contacting the polyurethane is increased by adding a chemical foaming agent to the polystyrene based main material.
  • the foaming agent added during production of the inner lining to the polystyrene based main material of the lower layer in order to decrease weight, is transitioned to the gaseous phase on the surface of the lower layer contacting the polyurethane, thereby enabling roughening of the surface of the lower layer facing the insulation volume due to the effect of the foaming agent.
  • Figure 1 is a schematic view of a refrigerator.
  • Figure 2 is a schematic view of the three layered inner lining structure provided in the refrigerator of the invention.
  • the refrigerator (1) comprises a body (2), at least one door (3), at least one cooler/freezer compartment (4) in which the food products and beverages are placed, an inner lining (5) made of plastic material by way of extrusion, forming the inner surfaces of the body (2) and the doors (3) facing the compartments (4), an outer wall (6) forming the outer side of the body (2) and the doors (3), and an insulation volume (7) provided between the inner lining (5) and the outer wall (6), into which polyurethane (PU) is injected.
  • PU polyurethane
  • the inner lining (5) has a three layered structure, and comprises an upper layer (8) made of glossy polystyrene based plastic material, forming the inner surface of the inner lining (5) facing the compartments (4), an interlayer (9) made of polystyrene based plastic material of high resistance to the chemicals in polyurethane, and a lower layer (10) provided at the insulation volume (7) side, contacting the polyurethane injected in the insulation volume (7), its surface contacting the polyurethane being roughened by adding a chemical foaming agent to the polystyrene based main material.
  • the chemical foaming agent used in weight reduction is added during production to the polystyrene based plastic material forming the lower layer (10).
  • the chemical foaming agent transitions to the gaseous phase within a specific temperature range and forms pockets in the polystyrene based main material.
  • Roughening of the lower layer (10) of the inner lining (5) contacting the polyurethane injected in the insulation volume (7) improves adherence of the polyurethane to the plastic material and enables homogeneous distribution of the polyurethane in the insulation volume (7).
  • the chemical foaming agent also enables reducing the weight of the lower layer (10) and therefore of the inner lining (5), and less raw materials are used compared to the state of the art.
  • the foaming agent added during production of the inner lining (5) to the polystyrene based main material of the lower layer (10), is transitioned to the gaseous phase on the surface of the lower layer (10) contacting the polyurethane, so as to enable roughening of the surface of the lower layer (10) facing the insulation volume (7).
  • foaming agent is added during production to the polystyrene based main material of the lower layer (10) in the ratio of 2 - 4%.
  • the lower layer (10) roughened using the foaming agent has a thickness in the range of 90-150 ⁇ m, and the surface of the lower layer (10) contacting the polyurethane has a roughness value in the range of Ra: 30 - 40 ⁇ m ( in the state of the art, said roughness value is identified to be in the range of Ra: 1 - 1.5 ⁇ m ).
  • the glossy polystyrene based upper layer (8) has a thickness in the range of 90 - 150 ⁇ m
  • the polyurethane chemicals resistant polystyrene based interlayer (9) has a thickness in the range of 2.5 - 4.6 mm.
  • the refrigerator (1) of the invention eliminates the necessity of the netting implementation used for homogeneous distribution of the polyurethane in the insulation volume (7), and the “corona” process used to adapt the polystyrene material to the polyurethane, providing cost advantage.
  • the polyurethane is distributed in the insulation volume (7) homogeneously and without pockets. Collapses are prevented from forming on the outer wall (6) of the body (2).

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)
  • Refrigerator Housings (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

La présente invention concerne un réfrigérateur (1) comprenant un corps (2), au moins une porte (3), au moins un compartiment réfrigérateur/congélateur (4) dans lequel les produits alimentaires et les boissons sont placés, une doublure intérieure (5) formée en matière plastique par extrusion et formant les surfaces intérieures du corps (2) et les portes (3) faisant face aux compartiments (4), une paroi extérieure (6) formant le côté extérieur du corps (2) et les portes (3), et un volume d'isolation (7) prévu entre la doublure intérieure (5) et la paroi extérieure (6), dans lequel est injecté du polyuréthane (PU).
PCT/EP2018/058194 2017-05-03 2018-03-29 Réfrigérateur comprenant une doublure intérieure en plastique Ceased WO2018202365A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL18715631T PL3619485T3 (pl) 2017-05-03 2018-03-29 Lodówka zawierająca wewnętrzną okładzinę z tworzywa sztucznego
EP18715631.0A EP3619485B1 (fr) 2017-05-03 2018-03-29 Réfrigérateur comprenant une doublure intérieure en plastique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR2017/06505A TR201706505A3 (tr) 2017-05-03 2017-05-03 Plasti̇k i̇ç duvar i̇çeren buzdolabi
TRA2017/06505 2017-05-03

Publications (1)

Publication Number Publication Date
WO2018202365A1 true WO2018202365A1 (fr) 2018-11-08

Family

ID=61899255

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2018/058194 Ceased WO2018202365A1 (fr) 2017-05-03 2018-03-29 Réfrigérateur comprenant une doublure intérieure en plastique

Country Status (4)

Country Link
EP (1) EP3619485B1 (fr)
PL (1) PL3619485T3 (fr)
TR (1) TR201706505A3 (fr)
WO (1) WO2018202365A1 (fr)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1546832A1 (de) * 1961-09-02 1970-04-16 Bosch Gmbh Robert Doppelwandiges,waermeisoliertes Gehaeuse,insbesondere Kuehlschrankgehaeuse
WO1992013716A1 (fr) * 1991-01-30 1992-08-20 E.I. Du Pont De Nemours And Company Articles fabriques presentant une resistance amelioree aux hydrohalocarbones
EP0533388A1 (fr) * 1991-09-12 1993-03-24 Mobil Oil Corporation Structures de revêtement interne pour réfrigérateur
US6164739A (en) * 1993-10-18 2000-12-26 The Dow Chemical Company Multilayer protective film
DE202006008251U1 (de) * 2006-03-21 2007-08-02 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät
WO2007138065A2 (fr) * 2006-05-31 2007-12-06 Arcelik Anonim Sirketi Réfrigérateur
WO2011003711A2 (fr) * 2009-07-07 2011-01-13 Arcelik Anonim Sirketi Réfrigérateur comprenant une cuve interne en plastique
DE102010040362A1 (de) * 2010-09-07 2012-03-08 BSH Bosch und Siemens Hausgeräte GmbH Gehäuse für ein Kältegerät
WO2013038003A2 (fr) 2011-09-16 2013-03-21 Arcelik Anonim Sirketi Dispositif de refroidissement comprenant un matériau d'isolation qui est disposé de façon à être réparti de façon homogène dans le volume d'isolation

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1546832A1 (de) * 1961-09-02 1970-04-16 Bosch Gmbh Robert Doppelwandiges,waermeisoliertes Gehaeuse,insbesondere Kuehlschrankgehaeuse
WO1992013716A1 (fr) * 1991-01-30 1992-08-20 E.I. Du Pont De Nemours And Company Articles fabriques presentant une resistance amelioree aux hydrohalocarbones
EP0533388A1 (fr) * 1991-09-12 1993-03-24 Mobil Oil Corporation Structures de revêtement interne pour réfrigérateur
US6164739A (en) * 1993-10-18 2000-12-26 The Dow Chemical Company Multilayer protective film
DE202006008251U1 (de) * 2006-03-21 2007-08-02 Liebherr-Hausgeräte Lienz Gmbh Kühl- und/oder Gefriergerät
WO2007138065A2 (fr) * 2006-05-31 2007-12-06 Arcelik Anonim Sirketi Réfrigérateur
WO2011003711A2 (fr) * 2009-07-07 2011-01-13 Arcelik Anonim Sirketi Réfrigérateur comprenant une cuve interne en plastique
DE102010040362A1 (de) * 2010-09-07 2012-03-08 BSH Bosch und Siemens Hausgeräte GmbH Gehäuse für ein Kältegerät
WO2013038003A2 (fr) 2011-09-16 2013-03-21 Arcelik Anonim Sirketi Dispositif de refroidissement comprenant un matériau d'isolation qui est disposé de façon à être réparti de façon homogène dans le volume d'isolation

Also Published As

Publication number Publication date
PL3619485T3 (pl) 2021-10-18
EP3619485B1 (fr) 2021-03-10
EP3619485A1 (fr) 2020-03-11
TR201706505A3 (tr) 2018-12-21

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