EP0916899A2 - Disposition d'un élément céramique de chauffage en tant que zone de cuisson dans un évidement de surface - Google Patents

Disposition d'un élément céramique de chauffage en tant que zone de cuisson dans un évidement de surface Download PDF

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Publication number
EP0916899A2
EP0916899A2 EP98119600A EP98119600A EP0916899A2 EP 0916899 A2 EP0916899 A2 EP 0916899A2 EP 98119600 A EP98119600 A EP 98119600A EP 98119600 A EP98119600 A EP 98119600A EP 0916899 A2 EP0916899 A2 EP 0916899A2
Authority
EP
European Patent Office
Prior art keywords
heating element
ceramic
recess
cover
arrangement according
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
EP98119600A
Other languages
German (de)
English (en)
Other versions
EP0916899B1 (fr
EP0916899A3 (fr
Inventor
Bernd Schultheis
Martin Taplan
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.)
Schott AG
Carl Zeiss AG
Original Assignee
Carl Zeiss AG
Schott Glaswerke 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
Application filed by Carl Zeiss AG, Schott Glaswerke AG filed Critical Carl Zeiss AG
Publication of EP0916899A2 publication Critical patent/EP0916899A2/fr
Publication of EP0916899A3 publication Critical patent/EP0916899A3/fr
Application granted granted Critical
Publication of EP0916899B1 publication Critical patent/EP0916899B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F24C15/10—Tops, e.g. hot plates; Rings
    • F24C15/102—Tops, e.g. hot plates; Rings electrically heated

Definitions

  • the present invention relates to the arrangement of an electrical heating element as a cooking zone with a very good heat-conducting ceramic as carrier, in one Recessing a surface made of glass ceramic, glass, ceramic, metal or plastic.
  • Cooking appliances with glass ceramic cooking surfaces are known. Heating the cooking zones These devices are usually located in the cooking zone area Electric or gas-operated, arranged below the glass ceramic cooktop Heating devices. This can e.g. electrically operated contactor Radiant heating elements or gas radiant burners.
  • the delayed heat emission through the plate is a disadvantage the goods to be heated with a correspondingly lower energy utilization (Efficiency) of the heating medium and, as a result, a longer one Perceived parboiling time.
  • WO 96/09738 also relates to an electrical heating element, an electrically insulating, heat-conducting ceramic carrier, in particular made of silicon nitride and an electrically conductive, with Has electrical contacts provided layer or film, the carrier is plate-shaped and so massive that it acts as a heat sink.
  • the high thermal conductivity of the ceramic material also prevents that Formation of multi-circuit cooking zones with those adapted to the cookware Diameters or roasting zones with independently switchable and controllable Zones that have been known for years with glass ceramic cooktops and are generally useful. Adjacent zones would here you heat each other.
  • Cooking appliances whose cooking zones are made exclusively by ceramic hot plates very high heat conduction are formed, despite the above Advantages over cooking appliances with glass ceramic cooking surfaces or zones quite a number of disadvantages.
  • German utility model 297 02 418.3 which relates to a cooking appliance with a glass ceramic cooking surface with several cooking zones, at least one of which is designed as a rapid cooking zone, the cooking zones being essentially heatable by means of electrically operated heating devices and the rapid cooking zone by an into the glass ceramic cooking surface
  • Integrated ceramic hotplate is formed, wherein the ceramic hotplate can consist of Si 3 N 4 or SiC.
  • the ceramic hotplate is either inserted directly into the glass-ceramic cooking surface, or glued into a corresponding recess in the glass-ceramic cooking surface using a silicone adhesive, or the ceramic hotplate is inserted into a plate made of thermally insulating ceramic, metal or tempered glass and this in turn is inserted into a recess the glass ceramic cooktop.
  • Ceramic plates have a thermal expansion that should not be neglected. Since a ceramic hotplate expands during operation, high operating temperatures must not occur when joining with brittle materials such as glass ceramic, glass or ceramic. Alternatively, it can be glued with a permanently elastic material. But even these permanently elastic materials are only stable up to approx. 300 ° C. Furthermore, the quench resistance of the ceramic discs is typically around 300 K.
  • the operating temperature of such ceramic hot plates is therefore limited to about 250 ° C to a maximum of 300 ° C.
  • cooking zone temperatures of up to 600 ° C are required due to the lack of planicity of the floors in order to quickly bring the food to be heated to the boil.
  • special temperature sensors and control devices are therefore additionally required.
  • the object of the present invention is therefore to present an arrangement in which an electric heating element as a cooking zone with an electrically insulating but very good heat-conducting ceramic as a carrier, in a recess Cooking surface made of glass ceramic or a surface made of glass or ceramic, metal or plastic is integrated without gluing, the arrangement being electrical safe, high temperature resistant (400 to 500 ° C) and tight against penetration of liquids inside the device.
  • the holder of the ceramic heating elements guaranteed by a simple clamping device.
  • a special one Sealing which in turn would limit the operating temperature, is included not absolutely necessary, because of the special shape, preferred Embodiment frustoconical or spherical segment-like bulges, the Liquid penetration between ceramic heating element and molded body is prevented.
  • the molded body is a prestressed one Glass or glass ceramic surface, all around in the edge area is bent upwards around the ceramic heating element.
  • the cutout is the bottom of the recess and cover located under the major plane of the surface formed in one piece from the surface itself by suitable shaping.
  • this cover is a separate part, in particular made of metal or plastic.
  • the cover has either openings, in particular Snap-in recordings, by means of which the fastening elements firmly connected to the heating element, in particular by means of latches of snap hooks, latching, are releasably firmly connected.
  • the cover has at least one Opening, by means of which the / the fixed to the heating element Fastening element / s, in particular by means of a screw nut and a Bolt as fastener, is / are releasably securely connected.
  • a combination of snap and screw connections can also be used for certain Orders are provided with success.
  • the fixed connection of the fastening element with the heating element preferably by means of a Braze joint reached.
  • Avoid area and cover is in the contact area between the ceramic support of the heating element and the surface and / or the covering another material, in particular also arranged as a seal.
  • Graphite-containing and / or ceramic fiber materials are preferred for this used.
  • the space between the bottom of the ceramic support of the heating element and the top of the recess downward-closing cover is heat-insulating and / or electrical insulating materials, in this room also advantageously heating conductors, electr. Supply lines, cable strain reliefs and cable bushings arranged are.
  • Figure 1 shows schematically in supervision the arrangement of a hob 1 with a Shaped body 2 as a cooking surface made of glass ceramic and the integrated therein ceramic heating elements 3.
  • the shaped body can also be made as a surface a metallic material or a special temperature-resistant Plastic, e.g. B. made of duroplastic material (z. B. UP or MF) or thermoplastic Material (e.g. PEI, PPS, PES, PPA, PET, PBT).
  • the ceramic heating elements 3 usually consist of silicon nitride, Si 3 N 4, silicon carbide, SiC, more rarely aluminum oxide, Al 2 O 3 , or aluminum nitride, AIN, or corresponding mixed ceramics are applied to the heating conductors 4, which are electrically connected to corresponding supply lines 12 .
  • Figure 2 shows the usual installation situation in section, in which the ceramic heating elements 3 are glued into the molded body, usually a prestressed glass or glass ceramic surface, by means of silicone 13.
  • the silicone adhesive 13 currently limits the operating temperature to max. 250 ° C.
  • Other adhesives are not used due to their insufficient permanent elastic properties.
  • CERAN® ( ⁇ ⁇ 0.2 * 10 -6 / K) and on the other hand Si 3 N 4 ( ⁇ ⁇ 3.5 ⁇ 10 -6 / K) prevent the use of ceramic adhesives.
  • FIG. 3 shows in section a preferred embodiment according to the Invention.
  • the ceramic heating element 3 with the printed heating conductors 4 overlaps the circumferentially upwardly curved edge region 2a of FIG Glass or glass ceramic hob 2.
  • 7 is a screw bolt 8 on the ceramic Heated element, which through an opening of a plate-shaped plate or Plastic part 5 protrudes.
  • the plate-shaped cover 5 is by means of a washer 10 and a nut 11 held.
  • cover 5 is made of plastic, this offers the advantage that Cable strain relief 5a and cable bushings 5b already in the manufacturing process can be molded.
  • an intermediate layer is required in the contact area 5d not to damage the underside if the molded body 2 is brittle Materials such as glass, glass ceramic or ceramic is made.
  • the cavity is between the heating element 3 and cover 5 by means of an insulating material 14 lined.
  • Figure 4 shows another example of such an arrangement, in which the ceramic Heating element 3 with the heating conductors 4 directly on the edge of the molded body 2 is made of heat-resistant glass or glass ceramic.
  • the connection to cover 5 is in this case by means of one or more snap hooks 15 made of spring steel, by means of a braze joint 7 on the underside are attached to the ceramic heating element.
  • the latch 15a protrudes through the corresponding opening 5c, whereby one, opposite the State of the art, very inexpensive installation.
  • the molded body 2 is made of plastic and also a circumferential bulge 2b has on its top, on which the heating element 3 rests.
  • the average tapered pad prevents too good heat conduction.
  • Additional Insulating materials e.g. B. graphite-containing layer materials and / or ceramic fiber materials further lower the contact temperature for the plastic.
  • the ceramic heating elements 3 with their Latching hooks 15 are used as shaped bodies in carrier plates 2 formed directly therefor can be. Due to the manufacturing processes, usually injection molding or hot pressing, such carrier plates 2 can already have reinforcing ribs 2c, bottom part 2d, cable openings 2e and locking receptacles 2f in one Step.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • Electric Stoves And Ranges (AREA)
  • Cookers (AREA)
  • Baking, Grill, Roasting (AREA)
EP98119600A 1997-10-23 1998-10-16 Elément céramique de chauffage en tant que zone de cuisson dans un évidement de surface Expired - Lifetime EP0916899B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19746845A DE19746845C1 (de) 1997-10-23 1997-10-23 Anordnung eines keramischen Heizelementes als Kochzone in einer Aussparung einer Fläche
DE19746845 1997-10-23

Publications (3)

Publication Number Publication Date
EP0916899A2 true EP0916899A2 (fr) 1999-05-19
EP0916899A3 EP0916899A3 (fr) 1999-07-21
EP0916899B1 EP0916899B1 (fr) 2003-06-04

Family

ID=7846403

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98119600A Expired - Lifetime EP0916899B1 (fr) 1997-10-23 1998-10-16 Elément céramique de chauffage en tant que zone de cuisson dans un évidement de surface

Country Status (7)

Country Link
US (1) US6050176A (fr)
EP (1) EP0916899B1 (fr)
JP (1) JPH11218333A (fr)
BR (1) BR9804042A (fr)
CA (1) CA2251242A1 (fr)
DE (2) DE19746845C1 (fr)
PL (1) PL329306A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866872A1 (fr) * 2004-02-26 2005-09-02 Eurokera Plaque vitroceramique et son procede de fabrication
US20220252271A1 (en) * 2021-02-05 2022-08-11 Electrolux Home Products, Inc. Silicon nitride melt

Families Citing this family (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19856538C1 (de) * 1998-12-08 2000-05-04 Schott Glas Kochanordnung
US6501053B2 (en) 2000-07-26 2002-12-31 Maytag Corporation Control system for an appliance cooktop
US6297482B1 (en) 2000-07-26 2001-10-02 Maytag Corporation Ceramic-based downdraft cooktop having angled front face portion
DE10052645A1 (de) * 2000-10-24 2002-05-02 Schott Glas Topfträger für ein Gas-Kochfeld mit mindestens einem atmosphärischen Gasbrenner
DE10163839B4 (de) * 2001-12-22 2005-01-05 AEG Hausgeräte GmbH Kochmulde, insbesondere Induktionskochmulde
DE10240147A1 (de) * 2002-08-30 2004-03-11 BSH Bosch und Siemens Hausgeräte GmbH Kochfläche mit Barriere
US6817355B1 (en) 2003-06-13 2004-11-16 Maytag Corporation Gas burner mounting assembly for a cooking appliance having a ceramic-based cooktop
DE10349818B3 (de) * 2003-10-24 2005-05-04 Electrolux Home Products Corporation N.V. Kochfeld
MX2007011864A (es) * 2005-03-25 2007-12-07 Henkel Corp Composiciones y procesos para el montaje de electrodomesticos.
DE102005052274B4 (de) * 2005-10-27 2010-04-08 E.G.O. Elektro-Gerätebau GmbH Kochgerät
US20090095275A1 (en) * 2007-10-16 2009-04-16 Marlene Duran Ceramic stove top kit
ES2333763B1 (es) * 2007-12-21 2011-01-17 Bsh Electrodomesticos España, S.A. Dispositivo de blindaje y soporte de bobinas de induccion, inductor para el uso con dicho dispositivo y campo de coccion por induccion con dicho dispositivo.
JP4519178B2 (ja) 2008-02-15 2010-08-04 三菱電機株式会社 車両用交流発電機の制御装置
US9095005B2 (en) * 2008-05-20 2015-07-28 Kenyon International, Inc. Induction cook-top apparatus
US20090289047A1 (en) * 2008-05-23 2009-11-26 Hisao Mingjen Night light assembly
ATE546694T1 (de) * 2008-12-03 2012-03-15 Electrolux Home Prod Corp Regeleinheit und kochherd
EP2397772B1 (fr) * 2009-02-11 2018-10-03 Pellytech Co., Ltd Récipient de cuisson avec dispositif de sécurité pour four à microondes
DE102009035758A1 (de) * 2009-07-27 2011-02-03 E.G.O. Elektro-Gerätebau GmbH Bedieneinheit
EP2378207B1 (fr) * 2010-03-31 2017-05-10 Electrolux Home Products Corporation N.V. Agencement de cuisine
US9072401B2 (en) * 2010-07-21 2015-07-07 Stearns Product Development, Inc. Griddle having raised, bun toasting surface
EP2447605B1 (fr) * 2010-10-27 2012-12-05 Electrolux Home Products Corporation N.V. Élément de chauffage et procédé de fabrication d'un corps de base d'élément de chauffage
DE102012219264A1 (de) * 2011-11-22 2013-05-23 BSH Bosch und Siemens Hausgeräte GmbH Hausgerätevorrichtung
CA151674S (en) * 2012-03-12 2014-03-11 Bsh Bosch Siemens Hausgeraete Cooktop
USD787041S1 (en) 2015-09-17 2017-05-16 Whirlpool Corporation Gas burner
US10837651B2 (en) 2015-09-24 2020-11-17 Whirlpool Corporation Oven cavity connector for operating power accessory trays for cooking appliance
US11777190B2 (en) 2015-12-29 2023-10-03 Whirlpool Corporation Appliance including an antenna using a portion of appliance as a ground plane
GB2546633A (en) * 2016-01-24 2017-07-26 Life Project Ltd Baking toaster apparatus and method
US10145568B2 (en) 2016-06-27 2018-12-04 Whirlpool Corporation High efficiency high power inner flame burner
US10551056B2 (en) 2017-02-23 2020-02-04 Whirlpool Corporation Burner base
US10451290B2 (en) 2017-03-07 2019-10-22 Whirlpool Corporation Forced convection steam assembly
US10660162B2 (en) 2017-03-16 2020-05-19 Whirlpool Corporation Power delivery system for an induction cooktop with multi-output inverters
EP3426001B1 (fr) * 2017-07-03 2021-04-14 Electrolux Appliances Aktiebolag Plaque de cuisson
US10627116B2 (en) 2018-06-26 2020-04-21 Whirlpool Corporation Ventilation system for cooking appliance
US10619862B2 (en) 2018-06-28 2020-04-14 Whirlpool Corporation Frontal cooling towers for a ventilation system of a cooking appliance
US10837652B2 (en) 2018-07-18 2020-11-17 Whirlpool Corporation Appliance secondary door
NL2022010B9 (nl) * 2018-11-16 2020-07-21 D N A Machb B V Werkwijze voor het frituren van een voedselproduct, alsmede een frituur-inrichting

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2933349A1 (de) * 1979-08-17 1981-03-26 Fischer, Karl, 75038 Oberderdingen Elektrokochplatte
EP0069298A1 (fr) * 1981-07-08 1983-01-12 E.G.O. Elektro-Geräte Blanc u. Fischer Plaque chauffante
ATA31879A (de) * 1978-01-23 1983-06-15 Iskra Elektrische kochplatte
US4517454A (en) * 1983-03-31 1985-05-14 Cuisi-Technic S.A.R.L. Electric heating element, and a hot plate equipped with the heating element
DE3545453A1 (de) * 1985-12-20 1987-07-02 Bosch Siemens Hausgeraete Heizelement fuer thermische hausgeraete, vorzugsweise fuer kochstellen

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT31879B (de) * 1906-12-01 1908-02-25 Carl Brauer Vorrichtung zum selbsttätigen Eintragen von Flaschen u. dgl. von den Arbeitsstellen in die Kühlöfen.
DE4022844C1 (fr) * 1990-07-18 1992-02-27 Schott Glaswerke, 6500 Mainz, De
DE4133409C2 (de) * 1991-10-09 1993-10-21 Schott Glaswerke Brenneranordnung
WO1996009738A1 (fr) * 1994-09-20 1996-03-28 Negawatt Gmbh Corps de chauffe electrique
DE4442572C1 (de) * 1994-11-30 1995-09-28 Schott Glaswerke Vorrichtung zum Schutz der Ränder von Öffnungen in Formenkörpern aus Glaskeramik, Glas oder Keramik
DE29702418U1 (de) * 1997-02-13 1997-03-27 Schott Glaswerke, 55122 Mainz Kochgerät mit Glaskeramikkochfläche mit Schnellkochzone

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATA31879A (de) * 1978-01-23 1983-06-15 Iskra Elektrische kochplatte
DE2933349A1 (de) * 1979-08-17 1981-03-26 Fischer, Karl, 75038 Oberderdingen Elektrokochplatte
EP0069298A1 (fr) * 1981-07-08 1983-01-12 E.G.O. Elektro-Geräte Blanc u. Fischer Plaque chauffante
US4517454A (en) * 1983-03-31 1985-05-14 Cuisi-Technic S.A.R.L. Electric heating element, and a hot plate equipped with the heating element
DE3545453A1 (de) * 1985-12-20 1987-07-02 Bosch Siemens Hausgeraete Heizelement fuer thermische hausgeraete, vorzugsweise fuer kochstellen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866872A1 (fr) * 2004-02-26 2005-09-02 Eurokera Plaque vitroceramique et son procede de fabrication
US20220252271A1 (en) * 2021-02-05 2022-08-11 Electrolux Home Products, Inc. Silicon nitride melt

Also Published As

Publication number Publication date
US6050176A (en) 2000-04-18
EP0916899B1 (fr) 2003-06-04
CA2251242A1 (fr) 1999-04-23
PL329306A1 (en) 1999-04-26
BR9804042A (pt) 1999-12-14
DE59808609D1 (de) 2003-07-10
EP0916899A3 (fr) 1999-07-21
DE19746845C1 (de) 1998-12-03
JPH11218333A (ja) 1999-08-10

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