EP0507249A2 - Device for thermally insulating houshold electrical appliances or parts thereof in which heat is developed, such as the cooking chamber of electric, gas or combination ovens - Google Patents

Device for thermally insulating houshold electrical appliances or parts thereof in which heat is developed, such as the cooking chamber of electric, gas or combination ovens Download PDF

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Publication number
EP0507249A2
EP0507249A2 EP92105516A EP92105516A EP0507249A2 EP 0507249 A2 EP0507249 A2 EP 0507249A2 EP 92105516 A EP92105516 A EP 92105516A EP 92105516 A EP92105516 A EP 92105516A EP 0507249 A2 EP0507249 A2 EP 0507249A2
Authority
EP
European Patent Office
Prior art keywords
walls
flat elements
flat
elements
cooking chamber
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Withdrawn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
EP92105516A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0507249A3 (ro
Inventor
Idebro Mais
Franziscus Kokkeler
Renzo Braglia
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 Europe BV
Original Assignee
Whirlpool Europe BV
Whirlpool International BV
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 Whirlpool Europe BV, Whirlpool International BV filed Critical Whirlpool Europe BV
Publication of EP0507249A2 publication Critical patent/EP0507249A2/en
Publication of EP0507249A3 publication Critical patent/EP0507249A3/xx
Withdrawn legal-status Critical Current

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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

  • This invention relates to a device for thermally insulating a household electrical appliance or a part thereof in which heat is developed, such as a cooking chamber of an electric, gas or combination oven.
  • its cooking chamber is generally insulated from the remaining parts of the appliance by being covered with a usual body of insulation material having low thermal conductivity.
  • forming the covering using an insulating body can involve considerable problems related to the handling of the body and its application to the usual structure defining the cooking chamber.
  • solid insulation material has its own emittance, resulting in heating of the external structure of the oven or the structure containing this latter if it is built into a kitchen unit.
  • An object of the present invention is to provide a device for thermally insulating a household electrical appliance or a part thereof, such as a cooking chamber of an electric, gas or similar oven, which is of simple construction, reliable and light in weight, and which can be easily fixed to the electrical appliance or the part thereof, for example to the structure of said cooking chamber.
  • a further object is to provide a device of the said type which is easy to handle and enables an insulation to be obtained having a level of characteristics which depends on the heat generated in the electrical appliance or the part thereof, for example in said cooking chamber.
  • a further object is to provide a device of the aforesaid type which is of low cost.
  • a device for thermally insulating a household electrical appliance or a portion thereof in which heat is generated or developed such as a gas, electric or combination oven or the usual cooking chamber thereof, said electrical appliance or its portion being delimited by walls subjected to radiation as a result of said heat generation or development, said walls having therefore to be thermally insulated, characterised by comprising, disposed on each of said walls to be insulated, at least two mutually parallel flat elements associated with and slightly spaced-apart from each other, said flat elements defining between each other an interspace in which spacer members are provided, said flat elements being of substantially smaller thickness than the walls to be insulated and being formed at least partly of high reflectance material.
  • Said figures show a cooking chamber 1 of an oven, such as an electric oven.
  • the heating members (of known type) have been omitted from the chamber 1.
  • Said cooking chamber is delimited by walls 2, 3, 4, 5 and 6 which define a usual aperture 1A providing access to the chamber.
  • first flat elements of substantially smaller thickness than said walls.
  • Said flat elements in substantially sheet form, are constructed of material of high reflectance and low emittance, such as aluminium or like material.
  • one face 8 thereof, facing the chamber 1, is of aluminium or coated with a usual aluminium-based coating.
  • Each element 7 can be coupled to a second flat element 10 which is spaced from and parallel to the first, so as to define with this latter an interspace 11 in which air is present.
  • At least one spacer member 12 constructed of insulating material such as glass wool.
  • the members 12 are fixed in any known manner (eg. glued) to that face 13 of the respective elements 7 opposite the face 8.
  • Said spacer member or members 12 are at least partly flexible, are of substantially cylindrical shape, and cooperate with that face 15 of the second flat element 10 which faces the chamber 1, which face can be aluminized if the element 10 is not of aluminium construction. Said members 12 can thus be fixed to the face 15 itself.
  • connection between the elements 7 and 10 can be formed in any known manner, either by a direct connection between said elements or by known external retention members (such as annular members which are made to embrace the flat elements when these have been positioned about the cooking chamber 1), not shown.
  • every second flat element 10 comprises, on that face 16 opposite the face 15, at least one spacer member 17 identical to said spacer members 12.
  • the chamber 1 is insulated by depositing the elements 7 on the chamber walls 2, 3, 4, 5 and 6 and fixing these elements to said walls by known means, such as screws or by gluing with heat-resistant glue.
  • the flat elements 7 are constructed in sheet form they can be very quickly, simply and reliably applied to the walls 2, 3, 4, 5 and 6, so reducing the time required for applying the desired insulation and the corresponding cost.
  • the elements 7 are portions of the same sheet of high reflectance material, surrounding the walls 2, 3, 4, 5 and 6 of the chamber 1 without discontinuity.
  • the second flat elements 10 are arranged on these latter or rather on the spacer members 12.
  • connection between the second flat elements 10 and first flat elements 7 is achieved in the already described manner, for example via the members 12.
  • the second elements 10 can be in the form of one sheet surrounding the chamber 1.
  • said sheet is the same as that which defines the elements 7 and wrapped a number of times about a itself, with spacer members 12 being interposed between two parallel superposed layers (defining the elements 7 and 10).
  • the device for insulating the cooking chamber 1 as described and as illustrated on the accompanying figures is therefore of simple construction, of low cost and easy to handle.
  • This device (comprising at least two flat elements 7 and 10 defining the interspace 11 containing the members 12) can be used to insulate any household electrical appliance or part thereof in which heat is generated and which must therefore be insulated from the external environment or from other parts of the electrical appliance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)
  • Electric Stoves And Ranges (AREA)
  • Baking, Grill, Roasting (AREA)
EP92105516A 1991-04-05 1992-03-31 Device for thermally insulating houshold electrical appliances or parts thereof in which heat is developed, such as the cooking chamber of electric, gas or combination ovens Withdrawn EP0507249A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI910941A IT1245827B (it) 1991-04-05 1991-04-05 Dispositivo per isolare termicamente elettrodomestici o loro parti in cui si ha uno sviluppo di calore, quali per esempio le camere di cottura di forni elettrici,a gas o combinati
ITMI910941 1991-04-05

Publications (2)

Publication Number Publication Date
EP0507249A2 true EP0507249A2 (en) 1992-10-07
EP0507249A3 EP0507249A3 (ro) 1994-02-16

Family

ID=11359453

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105516A Withdrawn EP0507249A2 (en) 1991-04-05 1992-03-31 Device for thermally insulating houshold electrical appliances or parts thereof in which heat is developed, such as the cooking chamber of electric, gas or combination ovens

Country Status (2)

Country Link
EP (1) EP0507249A2 (ro)
IT (1) IT1245827B (ro)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325495A1 (de) * 1993-07-29 1995-02-02 Kulmbacher Klimageraete Wärmedämmung für Elektro-Speicherheizgeräte
CN111839253A (zh) * 2019-04-30 2020-10-30 华帝股份有限公司 具有散热功能的自称重烹饪设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB737331A (en) * 1953-04-17 1955-09-21 Revo Electric Co Ltd An improved means for lagging ovens of gas or electric cookers
FR2602856A1 (fr) * 1986-08-18 1988-02-19 Bosch Siemens Hausgeraete Agencement pour abaisser la temperature des parois laterales d'une cuisiniere

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB737331A (en) * 1953-04-17 1955-09-21 Revo Electric Co Ltd An improved means for lagging ovens of gas or electric cookers
FR2602856A1 (fr) * 1986-08-18 1988-02-19 Bosch Siemens Hausgeraete Agencement pour abaisser la temperature des parois laterales d'une cuisiniere

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325495A1 (de) * 1993-07-29 1995-02-02 Kulmbacher Klimageraete Wärmedämmung für Elektro-Speicherheizgeräte
CN111839253A (zh) * 2019-04-30 2020-10-30 华帝股份有限公司 具有散热功能的自称重烹饪设备
CN111839253B (zh) * 2019-04-30 2024-02-02 华帝股份有限公司 具有散热功能的自称重烹饪设备

Also Published As

Publication number Publication date
EP0507249A3 (ro) 1994-02-16
ITMI910941A1 (it) 1992-10-05
ITMI910941A0 (it) 1991-04-05
IT1245827B (it) 1994-10-24

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