WO2011080243A1 - Four comprenant une isolation thermique - Google Patents

Four comprenant une isolation thermique Download PDF

Info

Publication number
WO2011080243A1
WO2011080243A1 PCT/EP2010/070742 EP2010070742W WO2011080243A1 WO 2011080243 A1 WO2011080243 A1 WO 2011080243A1 EP 2010070742 W EP2010070742 W EP 2010070742W WO 2011080243 A1 WO2011080243 A1 WO 2011080243A1
Authority
WO
WIPO (PCT)
Prior art keywords
oven
casing
insulation layer
blowing agent
enamel
Prior art date
Application number
PCT/EP2010/070742
Other languages
English (en)
Inventor
Mehmet Ali Oral
Original Assignee
Arcelik Anonim Sirketi
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 Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to EP10800758.4A priority Critical patent/EP2519780B1/fr
Publication of WO2011080243A1 publication Critical patent/WO2011080243A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/34—Elements and arrangements for heat storage or insulation

Definitions

  • the present invention relates to an oven wherein energy savings is
  • the oven cavity heated to the desired temperature by the heaters, does not lose heat since there is almost no heat exchange with the exterior environment.
  • the temperature the oven cavity is raised to is not conducted to the exterior environment due to the insulation material thereby preventing other kitchen commodities around the oven from being affected by the heat.
  • the thickness of the used insulation material is critical because of the area problem. Adhering insulation materials like double glazing, inorganic foam to the casing is difficult due to cost of heat resistant adhesive and the cost of operation.
  • heating unit disposed on the base is explained having impact resistant and heat insulation providing glass layers.
  • the aim of the present invention is the realization of an oven wherein
  • the oven is insulated from the exterior environment with an insulation layer coated on the casing.
  • the insulation layer is applied on the casing in fluid form and adheres thereon.
  • the insulation layer is formed by mixing powder or wet enamel with blowing agents and has heat insulation properties.
  • the insulation layer is heated after being applied on the casing and air bubbles are formed when the carbon dioxide contained in the blowing agent is released while entering into endothermic and exothermic solid state reactions. Since the viscosity of the insulation layer that becomes fluid by heating is less, some portion of the air bubbles are trapped in the insulation layer.
  • the insulation layer provides heat insulation by means of the air in the air bubbles remaining therein after cooling down having low thermal conductivity.
  • the blowing agent is produced from the mixture of at least one reductant that provides fluidity and at least one neutralizer that releases carbon dioxide when heated.
  • the insulation layer that is obtained does not flow off when applied on the casing having hundreds of air bubbles formed therein.
  • the insulation layer that has the stiffness to be applied by wiping on or spreading with the blowing agent is obtained by mixing a certain ratio of the blowing agent into enamel.
  • a smooth finish is obtained by spreading enamel on the insulation layer.
  • the insulation layer can be applied on the surface of the casing facing the oven cavity.
  • the oven is controlled by a control unit.
  • the surface of the casing facing the control unit is insulated with the insulation layer in order to protect the control unit from the high heat generated during the cooking process.
  • the outer surface of the casing is insulated by the insulation layer.
  • the air that rises by being heated is prevented escaping outside from the upper part of the oven by coating only the portion of the casing remaining over the oven cavity by the insulation layer.
  • the heat insulation of the oven is
  • the insulation layer is resistant to impact and high temperatures due to the enamel and blowing agents contained therein.
  • Figure 1 - is the schematic view of an oven.
  • Figure 2 - is the schematic view of an oven coated all around by the
  • Figure 3 - is the schematic view of an oven, the inner surface of which is coated with enamel foam.
  • An oven (1 ) comprises a casing (2), an oven cavity (3) enclosed in the casing (2), wherein the foods to be cooked are placed and a heater (4) that provides heating of the oven cavity (3).
  • the heat of the heater (4) disposed in the casing (2) is desired to be delivered only to the oven cavity (3) and not outside the oven (1 ).
  • the oven (1 ) of the present invention comprises an insulation layer (5) in a foamy structure, that is obtained by mixing enamel with the blowing agent adheres on the casing (2) by being applied on the casing (2) ( Figures 1 , 2 and 3).
  • the reaction is occurred when the blowing agents are mixed into enamel, as a result of the reaction, the insulation layer gains the fluidity form and air bubbles are formed therein the insulation layer (5) in a fluid state as a result of the reactionand therein. Since the insulation layer (5) is dense, some portion of the air bubbles formed remains inside the insulation layer (5) and cannot escape to the exterior environment.
  • the insulation layer (5) adheres on the casing (2) when applied on the casing (2) while it is in fluid state. Thermal insulation is provided since the thermal conductivity of the air in the air bubbles is very low. Thus, the casing (2) does not conduct the heat when coated thereon with the insulation layer (5).
  • Enamel can be used as wet or powder enamel. Since enamel is a heat resistant material, it provides the insulation layer (5) also to be heat resistant and at the same time the heat losses are prevented.
  • the insulation layer (5) When the insulation layer (5) is applied on the casing (2) and heated, air bubbles are formed from the blowing agents in its content. Thus, the insulation layer (5) swells out and solidifies after a certain time and adheres on the casing (2).
  • the blowing agent is obtained by mixing at least one compound selected from neutralizers and at least one compound selected from the reductants.
  • the reductants increase the viscosity of the insulation layer (5) and thereby prevent the insulation layer (5) from flowing off while being heated on the casing (2) and allow it to adhere smoothly.
  • the neutralizers form the air bubbles when heated by releasing CO4 contained therein and provide the insulation layer (5) to swell.
  • the blowing agent comprises a neutralizer selected from the CaCO2, KCO2, MgCO2 group.
  • the blowing agent comprises a reductant selected from the SiC, B5C, TiN, TiCN group.
  • the fluidity of the insulation layer (5) is adjusted with the blowing agents mixed with the enamel in certain ratios and is either spread or sprayed on the casing (2). Fluidity increases as the ratio of the blowing agent mixed into enamel increases.
  • the insulation layer (5) can be applied on the casing (2) by using the available spraying and spreading methods in the casing (2) manufacturing step. Heat and impact resistant insulation layer (5) is obtained depending on the mixture ratios of the enamel and blowing agent.
  • the insulation layer (5) is
  • the insulation layer (5) is
  • the oven (1) comprises a
  • control unit (6) wherein electronic control is provided ( Figure 1 ).
  • Heat insulation is required on the control unit (6) since elements that can be damaged by high heat are disposed thereon. The elements are prevented from being damaged by coating the surface of the casing (2) facing the control unit (6) with the insulation layer (5).
  • the oven (1 ) does not again need to be coated with an insulation material. Since the heat insulation of the oven (1 ) is provided by the insulation layer (5), the heaters (4) can reach the desired temperature in a short period of time and thus energy savings is provided.
  • the enamel and the blowing agents contained in the insulation layer (5) have the properties of high heat resistance and low heat conductivity. Moreover, an insulation layer (5) is obtained that is impact resistant even under high temperatures, without forming cracks thereon by adjusting the mixture ratios of the enamel and the blowing agents. Therefore, the other household commodities are prevented from being damaged by the heat by applying the insulation layer (5) on the casing (2) inner surface between the casing (2) and the heater (4) or the casing (2) outer surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)

Abstract

La présente invention concerne un four (1) comportant une enceinte (2), une cavité (3) de four enfermé dans l'enceinte (2) et où sont placés les aliments à cuire, et un élément chauffant (4) assurant le chauffage de la cavité (3) de four, une isolation thermique y étant installée.
PCT/EP2010/070742 2009-12-31 2010-12-25 Four comprenant une isolation thermique WO2011080243A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10800758.4A EP2519780B1 (fr) 2009-12-31 2010-12-25 Four comprenant une isolation thermique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR200910070 2009-12-31
TRA2009/10070 2009-12-31

Publications (1)

Publication Number Publication Date
WO2011080243A1 true WO2011080243A1 (fr) 2011-07-07

Family

ID=43827049

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/070742 WO2011080243A1 (fr) 2009-12-31 2010-12-25 Four comprenant une isolation thermique

Country Status (2)

Country Link
EP (1) EP2519780B1 (fr)
WO (1) WO2011080243A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0696857B2 (ja) 1991-02-06 1994-11-30 日本国土開発株式会社 発泡樹脂ブロック土木工法とこれに用いる盛土構造体の浮き上り防止用アースアンカ
DE10051923A1 (de) * 2000-10-19 2002-05-16 Aeg Hausgeraete Gmbh Backgerät und Herstellungsverfahren dafür
WO2002102734A2 (fr) * 2001-06-18 2002-12-27 BSH Bosch und Siemens Hausgeräte GmbH Revetement par mousses inorganiques pour le calorifugeage d'appareils et de composants
WO2005057205A1 (fr) 2003-12-12 2005-06-23 The University Of Bristol Sonde a ultrasons comportant un element de couplage elastomere deformable
WO2009105208A2 (fr) 2008-02-22 2009-08-27 Horton, Inc. Fabrication et assemblage de ventilateur

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1394140B1 (it) * 2009-04-09 2012-05-25 Indesit Co Spa Elettrodomestico per la preparazione o la conservazione di alimenti

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0696857B2 (ja) 1991-02-06 1994-11-30 日本国土開発株式会社 発泡樹脂ブロック土木工法とこれに用いる盛土構造体の浮き上り防止用アースアンカ
DE10051923A1 (de) * 2000-10-19 2002-05-16 Aeg Hausgeraete Gmbh Backgerät und Herstellungsverfahren dafür
WO2002102734A2 (fr) * 2001-06-18 2002-12-27 BSH Bosch und Siemens Hausgeräte GmbH Revetement par mousses inorganiques pour le calorifugeage d'appareils et de composants
WO2005057205A1 (fr) 2003-12-12 2005-06-23 The University Of Bristol Sonde a ultrasons comportant un element de couplage elastomere deformable
WO2009105208A2 (fr) 2008-02-22 2009-08-27 Horton, Inc. Fabrication et assemblage de ventilateur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
K: KANZLER, G. H. FRISCHAT, P. HELLMOLD: "Development and properties of Foam Enamels", 18 May 2008 (2008-05-18), pages 195 - 205, XP002637205, Retrieved from the Internet <URL:http://www.iei-world.org/downloads/congress_pdf/K_Kanzler.pdf> [retrieved on 20080518] *

Also Published As

Publication number Publication date
EP2519780B1 (fr) 2016-07-13
EP2519780A1 (fr) 2012-11-07

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