EP0690268A2 - Appareil de chauffage pour le ménage - Google Patents

Appareil de chauffage pour le ménage Download PDF

Info

Publication number
EP0690268A2
EP0690268A2 EP95108762A EP95108762A EP0690268A2 EP 0690268 A2 EP0690268 A2 EP 0690268A2 EP 95108762 A EP95108762 A EP 95108762A EP 95108762 A EP95108762 A EP 95108762A EP 0690268 A2 EP0690268 A2 EP 0690268A2
Authority
EP
European Patent Office
Prior art keywords
heating appliance
appliance according
domestic heating
film
foils
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.)
Granted
Application number
EP95108762A
Other languages
German (de)
English (en)
Other versions
EP0690268B1 (fr
EP0690268A3 (fr
Inventor
Johann Klement
Klaus Dipl.-Ing. Rabenstein (Fh)
Klemens Dipl.-Ing. Roch (Fh)
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.)
BSH Hausgeraete GmbH
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0690268A2 publication Critical patent/EP0690268A2/fr
Publication of EP0690268A3 publication Critical patent/EP0690268A3/fr
Application granted granted Critical
Publication of EP0690268B1 publication Critical patent/EP0690268B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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

  • the invention relates to a domestic heating appliance according to the preamble of claim 1.
  • Fibrous insulating materials of this type are increasingly regarded as hazardous to health.
  • an insulating film for example made of aluminum, is wound in one or more layers around the wall surfaces of the furnace muffle, air chambers between the wall surfaces of the furnace muffle and the insulating film using edge-side spacer strips, or between the individual layers of the insulating film.
  • the spacer strips must in turn be made of a material that can withstand higher temperatures, such as during normal roasting and baking processes or, in extreme cases, when pyrolytic self-cleaning processes are carried out inside the oven muffle reduces also occur on the outside of the oven muffle, withstands.
  • asbestos foam which is highly heat-resistant, but again not without problems.
  • the invention has for its object to provide a domestic heating appliance, in particular a cooking appliance, e.g. to design an oven in relation to the thermal insulation so that health problems no longer occur and the insulation, in addition to good workability and small space requirements, also has a maximum of partially variable thermal insulation capability.
  • these fastening and / or connecting elements there is, for example, the possibility of arranging several film layers close to one another and, for example, bending the compressed and bendable edges accordingly, or using closed edge sections of a larger film layer web as corner connectors between film layers arranged at an angle to one another.
  • the heat conduction from the housing or furnace muffle to the film layer or between the fastening and / or connecting elements can be reduced in a targeted manner, so that, for example, only punctiform contact of the aforementioned parts takes place .
  • the invention has the advantage that the products according to the invention can be 100% pure and recyclable.
  • spacing elements for forming the air chambers are formed by the foils themselves, in that these foils have, for example, cup-shaped embossing points which are mutually supported on one another over a small area.
  • a certain contact between the foils may also be desired within the outer edges or edge sections, in order to be able to dissipate thermal energy from less highly stressed points, for example the oven muffle, in a targeted manner.
  • a preferred measure for holding and positioning the individual foils at a distance from one another is provided by profiling the foils, for example on the inside, such that the foil layer is honeycomb-shaped in cross section is formed, it can be provided that the mutually supporting embossing points produce a mutual fixation of the individual foils in the composite, so that, for example, different thermal expansions or mechanical loads are absorbed.
  • Fig. 1 shows a front view of the housing of a domestic heating appliance in the form of an oven muffle 1, which is cuboid in shape and has four oven walls 2, 3, 4 and 5 which are perpendicular to one another and a circumferential, bent oven or charging flange 6 on the front.
  • An air distribution shaft 8 with a corresponding fan 9 and air heater 10 is arranged in front of the rear furnace wall 7, as a result of which heated air flows can be blown in the direction of the arrow into the appliance space inside the oven muffle 1.
  • An internal radiant heater 11 is arranged on the top-side furnace wall 3, while an external radiator 12 is arranged below the lower furnace wall 5 as a so-called bottom heat.
  • the oven walls 2, 3, 4 and 5 are adapted in terms of shape with four film layers 13, the design of which is explained in more detail below.
  • Each film layer 13 has edges 14 which are formed from the films themselves and which are bendable and which represent fastening and / or connecting elements, which protrude beyond the outer dimensions of the oven muffle 1 and after the form-fitting application of the respective film layer 13 to the outside of the oven muffle 1 in the direction of the arrow the adjacent film layer folded will.
  • the mutual overlap of the film layers 13 results in a complete thermal insulation of the furnace walls in question.
  • FIG. 1 In the exemplary embodiment according to FIG.
  • FIG. 4 the front view of an oven muffle 1 with the charging flange 6 shown broken off is again shown schematically, a one-piece film layer web 15 serving to isolate the aforementioned furnace walls, the four film layers 13b separated by compressed edge sections 16 and cantilevered edges 14 at both ends owns.
  • This film layer web 15 is wound around the aforementioned furnace walls, the compressed edge sections 16 in the corner regions of the oven muffle 1 being curved connecting elements.
  • FIG. 5 shows an enlarged representation of part of a film layer 13 with an associated edge 14 or edge section 16 when embodied as a film layer web.
  • This film layer 13 is multilayer and consists, for example, of four aluminum films a, b, c and d, the films a and d representing outer cover films.
  • the inner foils b and c have, for example, a meandering shape and are arranged crosswise to one another, that is to say the meandering and elongated embossing points 17 are located perpendicular to each other and touch each other point by point. These embossing points 17 represent spacing elements which hold the multilayer films a, b, c and d in the example by a predetermined amount at a mutual distance.
  • the films are placed directly on top of one another and at least approximately airtightly sealed by compression.
  • This compression can take place by multiple, partial deep-drawing of the film composite in the area of deep-drawing points 18 according to FIGS. 6 and 7, not all of the films being drawn.
  • Subsequent squeezing of the deep-drawing points 18 creates a flat edge 14, the film edges of which are permanently attached to one another, as shown in FIG. 7.
  • the deep-drawing and squeezing points can have approximately a Z-shaped, mutually overlapping profile according to the top view in FIG. 8.
  • FIGS. 10 and 11 show somewhat more in detail the oven muffle 1 in horizontal section, which has the loading flange 6 on the front. It can be seen here that there are film layers 13b on the outer sides of the side furnace walls 2 and 4, which film layers can be part of a one-piece film layer web, for example.
  • the film layer 13b used here is illustrated in more detail in FIGS. 10 and 11. It consists of two outer cover foils a 'and d' and two inner foils b 'and c'.
  • the inner foils b 'and c' are provided in a regular pattern with cup-shaped spacer elements 19a and 19b designed as embossing points, which support one another, these multi-profiled foils b 'and c' being assigned to one another or placed one on top of the other so that the Spacer elements 19a, for example of the film c ', meet in a supportive manner with the spacer elements 19b of the film b'.
  • These foils have the same design.
  • the spacing elements designated 19a have preferably circular recesses 20 in the support surfaces, in which the contracting spacer elements 19b are immersed with their flat support surfaces and are held in a form-fitting manner.
  • the cover foils a'and d ' are similarly provided with a profile, namely with elevations 21 on the one hand and depressions 22 on the other hand, the flat supporting surfaces of the spacer elements 19b engaging and being fixed in the elevations 21.
  • the honeycomb-shaped film layer pattern is further expanded by two further films e 'and f', the design and arrangement of which is analogous to the film layer 13c shown in FIG. 11.
  • a multiplicity of air chambers 23 are formed between the cover foils a 'and d' by the cup-shaped spacer elements 19a and 19b, which are closed on the edge side in the manner described, for example by the edges 14 or edge sections 16.
  • the edge 14 delimiting the film layer 13c on one side is bent through 180 ° and thermally closely and directly coupled to the inside 24 of the loading flange 6 or fastened over a relatively large area. Esp.
  • Figure 13 essentially shows the structure according to Figure 11 or 12.
  • the contact or support points i.e. the recesses 20 of the profiled film e 'and the flat supporting surfaces of the adjacent, upper film b' intermediate layers 30 made of a material which is poorly heat-conducting, as a result of which the two films mentioned are largely thermally decoupled from one another.
  • the foils or intermediate foils are shaped like waves, e.g. 5 such intermediate layers may be provided, which are then e.g. are elongated, strip-shaped, while in FIG. 13 they are in the form of round disks.
  • an essentially wave-shaped or meandering-shaped film b is arranged as a spacer element between two cover films a and c, which is provided with mutually overlapping elongated perforations or cutouts 31, whereby the mass of this intermediate film b is reduced by approximately 90%.
  • heat conduction between the cover foils a and c is largely prevented and the weight of the foil layer is reduced.
  • the possibility of varying the number of foils within a foil layer in accordance with the thermal load which is caused in whole or in part by the heat domestic appliance to be insulated is also possible to use other materials, e.g. also use heat-resistant plastics.
  • the use of highly heat-resistant material e.g. Steel, stainless steel or the like for at least the inner cover film is expedient if the corresponding film layer directly heats e.g. covers the outer bottom heat 12 according to FIG. 1.
  • the edges or edge areas of the film layers can also e.g. be sealed or compressed airtight by welding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cookers (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Baking, Grill, Roasting (AREA)
  • Thermally Insulated Containers For Foods (AREA)
  • Laminated Bodies (AREA)
  • Disintegrating Or Milling (AREA)
  • Thermal Insulation (AREA)
EP95108762A 1994-06-27 1995-06-02 Appareil de chauffage pour le ménage Expired - Lifetime EP0690268B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4422360A DE4422360A1 (de) 1994-06-27 1994-06-27 Wärme-Haushaltgerät
DE4422360 1994-06-27

Publications (3)

Publication Number Publication Date
EP0690268A2 true EP0690268A2 (fr) 1996-01-03
EP0690268A3 EP0690268A3 (fr) 1996-09-25
EP0690268B1 EP0690268B1 (fr) 1999-05-06

Family

ID=6521548

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95108762A Expired - Lifetime EP0690268B1 (fr) 1994-06-27 1995-06-02 Appareil de chauffage pour le ménage

Country Status (7)

Country Link
US (1) US5763857A (fr)
EP (1) EP0690268B1 (fr)
AT (1) ATE179792T1 (fr)
BR (1) BR9502938A (fr)
DE (2) DE4422360A1 (fr)
ES (1) ES2132461T3 (fr)
GR (1) GR3030884T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1253845A1 (fr) * 2000-02-04 2002-11-06 The Garland Group Appareil de cuisson isole a l'aide de matiere non fibreuse
EP3333492A1 (fr) * 2016-12-07 2018-06-13 Electrolux Appliances Aktiebolag Cavité de four de cuisson
DE102021121322A1 (de) 2021-08-17 2023-02-23 Norbert Langkeit Garvorrichtung

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6104004A (en) * 1997-04-10 2000-08-15 Atd Corporation Electric barbecue grill
KR100578658B1 (ko) 1998-07-09 2006-05-11 에이티디코퍼레이션 휴대용 가스 그릴
DE19912831A1 (de) 1999-03-22 2000-09-28 Bsh Bosch Siemens Hausgeraete Gargerättür
US6823571B1 (en) 2000-01-24 2004-11-30 Atd Corporation Apparatus and method for manufacture of multilayer metal products
DE10013883C2 (de) * 2000-03-21 2003-07-17 Aeg Hausgeraete Gmbh Backofen
DE10104501B4 (de) * 2001-01-31 2004-06-24 BSH Bosch und Siemens Hausgeräte GmbH Gargerät
US7326458B1 (en) 2003-11-06 2008-02-05 Zagorski Stephen W System and method for flexible insulation
AU2007216654B2 (en) * 2006-09-11 2011-09-15 Moffat Pty Limited Improved insulation for baking chambers in a multi-deck baking oven
CA2601635C (fr) * 2006-09-11 2015-07-07 Moffat Pty Limited Isolant ameliore pour chambres de cuisson de four a plusieurs etages
KR101405219B1 (ko) * 2012-12-10 2014-06-10 주식회사 새한산업 다층 복합 판재
US9915392B2 (en) 2014-03-13 2018-03-13 Transco Products Inc. Internal thermal insulation for metal reflective insulation
US11867405B2 (en) 2020-11-30 2024-01-09 Whirlpool Corporation Flexible bracket for a cooking appliance

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2549834A1 (de) 1975-11-06 1977-05-18 Bosch Siemens Hausgeraete Back- und bratrohr

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE483700A (fr) * 1938-01-10
GB737331A (en) * 1953-04-17 1955-09-21 Revo Electric Co Ltd An improved means for lagging ovens of gas or electric cookers
US3037592A (en) * 1957-08-23 1962-06-05 Martin Marietta Corp Crisscross core for laminated metal structures
US4168013A (en) * 1977-10-17 1979-09-18 Trans Temp Inc. High temperature insulating container
JPS56146933A (en) * 1980-04-17 1981-11-14 Toshiba Corp Cooking apparatus
JPS60129534A (ja) * 1983-12-15 1985-07-10 Matsushita Electric Ind Co Ltd 加熱調理器
US4579756A (en) * 1984-08-13 1986-04-01 Edgel Rex D Insulation material with vacuum compartments
IT1201785B (it) * 1986-12-11 1989-02-02 Zanussi Zeltron Inst Procedimento per la fabbricazione di forni di cottura
JPH01150098A (ja) * 1987-12-03 1989-06-13 Nippon Steel Corp 断熱体
US5107649A (en) * 1988-04-15 1992-04-28 Midwest Research Institute Compact vacuum insulation embodiments
US5406930A (en) * 1993-08-10 1995-04-18 Atd Corporation Outdoor cooking device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2549834A1 (de) 1975-11-06 1977-05-18 Bosch Siemens Hausgeraete Back- und bratrohr

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1253845A1 (fr) * 2000-02-04 2002-11-06 The Garland Group Appareil de cuisson isole a l'aide de matiere non fibreuse
EP1253845A4 (fr) * 2000-02-04 2007-01-24 Garland Group Appareil de cuisson isole a l'aide de matiere non fibreuse
EP3333492A1 (fr) * 2016-12-07 2018-06-13 Electrolux Appliances Aktiebolag Cavité de four de cuisson
DE102021121322A1 (de) 2021-08-17 2023-02-23 Norbert Langkeit Garvorrichtung

Also Published As

Publication number Publication date
ES2132461T3 (es) 1999-08-16
US5763857A (en) 1998-06-09
EP0690268B1 (fr) 1999-05-06
EP0690268A3 (fr) 1996-09-25
ATE179792T1 (de) 1999-05-15
DE59505819D1 (de) 1999-06-10
DE4422360A1 (de) 1996-01-04
BR9502938A (pt) 1996-01-23
GR3030884T3 (en) 1999-11-30

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