EP0693863A1 - Procédé pour fixer une paroi en forme d'anneau dans un radiateur - Google Patents

Procédé pour fixer une paroi en forme d'anneau dans un radiateur Download PDF

Info

Publication number
EP0693863A1
EP0693863A1 EP95111475A EP95111475A EP0693863A1 EP 0693863 A1 EP0693863 A1 EP 0693863A1 EP 95111475 A EP95111475 A EP 95111475A EP 95111475 A EP95111475 A EP 95111475A EP 0693863 A1 EP0693863 A1 EP 0693863A1
Authority
EP
European Patent Office
Prior art keywords
container
molded body
pressed
insulating material
heat
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
EP95111475A
Other languages
German (de)
English (en)
Other versions
EP0693863B1 (fr
Inventor
Günter Dr. Kratel
Thomas Eyhorn
Andreas Rell
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.)
Wacker Chemie AG
Original Assignee
Wacker Chemie AG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6523832&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0693863(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wacker Chemie AG filed Critical Wacker Chemie AG
Publication of EP0693863A1 publication Critical patent/EP0693863A1/fr
Application granted granted Critical
Publication of EP0693863B1 publication Critical patent/EP0693863B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • 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 method for fixing an annular shaped body made of heat-insulating material in a radiator, the shaped body being provided as a spacer between the radiator and a ceramic hob to be heated, and the radiator comprising a bowl-shaped metal container in which a layer of heat-insulating Insulating material.
  • radiators for heating ceramic hobs are known and are described, for example, in European patent with publication number EP-560479 B1.
  • the heat-emitting heating means for example a resistance heating tape
  • the heat-insulating material is embedded in a layer of heat-insulating material and is located together with this layer in a bowl-shaped metal container.
  • the free inner wall of the metal container is lined with an annular shaped body, the upper edge of which protrudes beyond the edge of the container.
  • the annular shaped body serves as a spacer between the ceramic hob and the container and as an insulating agent which, together with the heat-insulating layer, is intended to limit undesirable heat losses.
  • the radiator In the intended working position, the radiator is held against the ceramic hob with a certain force, so that the molded body with it touches the upper side of the ceramic hob.
  • a prerequisite for trouble-free cooking is that the molded body is fixed in the metal container. This has so far been achieved by inserting a precisely shaped molded body into the container and gluing or stapling it at several points to the heat-insulating layer.
  • the object of the present invention was to simplify this process.
  • the object is achieved by a method which is characterized in that the molded body is pressed into the container so that it comes to lie in a compressed state on the layer of heat-insulating material and with its side surface presses flat against the inner wall of the container edge.
  • moldings which are made from fiber-reinforced, heat-insulating material have the elastic deformability required to carry out the method.
  • Insulation materials based on microporous metal oxides are preferably used. Examples of such heat-insulating mixtures can be found in the mentioned patent EP-560479 B1 and in the patent US-4,985,163. For reasons of precaution, care should be taken to ensure that the fibers contained in the annular shaped bodies are harmless to health.
  • the annular shaped body is accommodated in the container in a compressed state.
  • the molded body is compressed and is under a certain mechanical tension. Under the influence of this tension, the molded body expands and presses with its side surface against the inner wall of the container edge.
  • the heat-insulating layer covering the bottom of the container supports the molded body downwards.
  • the molded body is first produced in a manner known per se by pressing a heat-insulating mixture of insulating material in a suitable ring shape.
  • the manufacturing process has the effect that a molded body is produced in the compression mold.
  • the molded body is removed from the mold, the molded body expands until it reaches a stress-free state.
  • the shaped body can optionally be hardened by a temperature treatment.
  • the molded body is pressed into the container in a stress-free state and comes to rest in a compressed state on the heat-insulating layer in the container.
  • a fully expanded molded body which may be hardened, is pressed into the container and the outer diameter of the molded body is 0.1 mm to 1.0 mm larger than the inner diameter of the container.
  • the molded body is compressed radially and compressed to a diameter that corresponds to the inside diameter of the container.
  • the molded body is already pressed into the container in a compressed state and comes to rest on the heat-insulating layer in the container in a compressed state.
  • the molded body is expediently pressed into the container directly from the mold used for its production.
  • the outer diameter of the molded body compressed in the mold is equal to the inner diameter of the container or is 0 to 0.5 mm smaller than the inner diameter of the container.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Cookers (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Insulators (AREA)
  • Braking Arrangements (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
EP95111475A 1994-07-21 1995-07-21 Procédé pour fixer une paroi en forme d'anneau dans un radiateur Revoked EP0693863B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4425911 1994-07-21
DE4425911A DE4425911A1 (de) 1994-07-21 1994-07-21 Verfahren zum Fixieren eines ringförmigen Formkörpers in einem Heizkörper

Publications (2)

Publication Number Publication Date
EP0693863A1 true EP0693863A1 (fr) 1996-01-24
EP0693863B1 EP0693863B1 (fr) 1996-10-16

Family

ID=6523832

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95111475A Revoked EP0693863B1 (fr) 1994-07-21 1995-07-21 Procédé pour fixer une paroi en forme d'anneau dans un radiateur

Country Status (5)

Country Link
EP (1) EP0693863B1 (fr)
JP (1) JPH0855675A (fr)
AT (1) ATE144365T1 (fr)
DE (2) DE4425911A1 (fr)
ES (1) ES2092911T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2325604A (en) * 1997-05-22 1998-11-25 Ceramaspeed Ltd Electric heater support insulation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT375804B (de) * 1983-04-19 1984-09-10 Fischer Karl Verfahren zur herstellung eines elektrischen strahlungs-heizelementes sowie strahlungs-heizelement
US4985163A (en) * 1979-11-17 1991-01-15 Consortium Fur Elektrochemische Industrie Gmbh Shaped heat-insulating body and process of making the same
EP0490289A1 (fr) * 1990-12-11 1992-06-17 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Radiateur électrique notamment radiateur à rayonnement
EP0560479B1 (fr) 1992-02-07 1994-05-18 Zortech International Limited Matériau d'isolation thermique microporeux

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2820139A1 (de) * 1978-05-09 1979-11-15 Karl Fischer Elektrischer heizkoerper
GB8625556D0 (en) * 1986-10-25 1986-11-26 Micropore International Ltd Radiant heaters

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4985163A (en) * 1979-11-17 1991-01-15 Consortium Fur Elektrochemische Industrie Gmbh Shaped heat-insulating body and process of making the same
AT375804B (de) * 1983-04-19 1984-09-10 Fischer Karl Verfahren zur herstellung eines elektrischen strahlungs-heizelementes sowie strahlungs-heizelement
EP0490289A1 (fr) * 1990-12-11 1992-06-17 E.G.O. Elektro-Geräte Blanc und Fischer GmbH & Co. KG Radiateur électrique notamment radiateur à rayonnement
EP0560479B1 (fr) 1992-02-07 1994-05-18 Zortech International Limited Matériau d'isolation thermique microporeux

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2325604A (en) * 1997-05-22 1998-11-25 Ceramaspeed Ltd Electric heater support insulation

Also Published As

Publication number Publication date
DE59500030D1 (de) 1996-11-21
ATE144365T1 (de) 1996-11-15
JPH0855675A (ja) 1996-02-27
ES2092911T3 (es) 1996-12-01
EP0693863B1 (fr) 1996-10-16
DE4425911A1 (de) 1996-01-25

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