EP2241822A2 - Plaque de recouvrement pour une plaque de cuisson - Google Patents

Plaque de recouvrement pour une plaque de cuisson Download PDF

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Publication number
EP2241822A2
EP2241822A2 EP10158901A EP10158901A EP2241822A2 EP 2241822 A2 EP2241822 A2 EP 2241822A2 EP 10158901 A EP10158901 A EP 10158901A EP 10158901 A EP10158901 A EP 10158901A EP 2241822 A2 EP2241822 A2 EP 2241822A2
Authority
EP
European Patent Office
Prior art keywords
cover plate
elevations
heating zone
plate according
hob
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Withdrawn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
EP10158901A
Other languages
German (de)
English (en)
Other versions
EP2241822A3 (fr
Inventor
Juan Llado Paris
Carmelo Pina Gadea
Beatriz Sanchez Tabuenca
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
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2241822A2 publication Critical patent/EP2241822A2/fr
Publication of EP2241822A3 publication Critical patent/EP2241822A3/fr
Withdrawn legal-status Critical Current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
    • F24C15/10—Tops, e.g. hot plates; Rings
    • 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
    • F24C15/107—Pan supports or grates therefor
    • 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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/12—Cooking devices
    • H05B6/1209—Cooking devices induction cooking plates or the like and devices to be used in combination with them

Definitions

  • the invention relates to a cover plate for a hob with at least one heating zone and a plurality of radially extending elevations for setting up a cookware element.
  • the phenomenon of dancing pots occurs.
  • the magnetic fields generated for heating the cookware element or interference between different portions of such fields not only lead to the desired eddy currents in the bottom of the pot, but also generate an oscillating force acting on the pot or the cookware element. If the saucepan is not safe on the hob because of a deformed floor or the like, these forces can lead to disturbing rattling of the cooking pot.
  • the invention is in particular the object of improving the stability of a cooking utensil element on an induction hob to avoid noise due to rattling cookware elements.
  • the invention is particularly based on a cover plate for a hob with at least one heating zone and a plurality of radially extending elevations for setting up a cookware element.
  • the cover plate comprises exactly three elevations per heating zone. This can ensure that the cookware element, so for example a saucepan or a pan, is supported in a statically determined manner. A rattling of the cooking utensil element is thus excluded.
  • elongated elevations should be referred to as radially extending elevation, the longitudinal direction of which has a radial component, in particular those whose longitudinal direction deviate from a radial direction by less than 20 degrees or 30 degrees.
  • spiral elevations conceivable.
  • their elevations are rib-shaped and / or have over their length at least substantially constant profile.
  • the cover plate and the protrusions may be made of a known glass material or glass-ceramic material or, alternatively, stoneware and / or fiber-reinforced press materials. It is conceivable that the cover plate is made of glass or glass ceramic, while the surveys designed as metal attachments or metal inserts are that can be glued to the cover plate, welded or fused.
  • a marking of the edge of the heating zone on the cover plate can be avoided and / or supplemented if a radially outer end of the elevations marks a radially outer edge of the heating zone.
  • Tilting of the cooking utensil element can be avoided if it is not placed in the center by the elevations meet in the middle of the heating zone.
  • the heating zone is an induction heating zone with inductors arranged under the cover plate.
  • the inventive design of the cover can also be used in hobs with radiant heaters and avoid an unstable state of the saucepan.
  • the wear resistance of the bumps can be improved if they are flattened in their highest range.
  • Fig. 1 shows a hob with a cover plate and four heating zones 10a - 10d.
  • three radially extending elevations 12 are formed on the otherwise flat surface of the cover plate.
  • the elevations 12 are used to set up a cooking utensil element, not shown here, for example, a pan or a saucepan, on the heating zone 10a - 10d.
  • the three protuberances 12 are in the form of elongate ribs with constant profile over the length and extend radially from the edge of the heating zone 10a-10d to their midpoint.
  • the edge of the heating zone coincides with the radially outer edge of the under the cover plate arranged inductors 14, which are shown here only schematically.
  • the elevations 12 of the cover plate are made of the same glass ceramic material as the rest of the cover plate.
  • the material of the projections is applied to the material of the cover plate before sintering and sintered together with the rest of the cover plate.
  • the elevations 12 may be formed from subsequently fused to the rest of the cover plate glass.
  • the radially outer end of the elevations 12 coincides with the edge of the heating zone 10a-10d, this edge is visualized and marked by the elevations 12. Another marking, such as a serigraphy on the back of the cover, can be avoided. Because the bumps 12 meet in the middle of the heating zone 10a-10d, even very small cooking pots can be safely placed on the heating zone 10a-10d, even if the inductors 14 have a much larger diameter than the pot in question.
  • the elevations 12 are flattened in the highest area 16 so as to further improve stability of the cooking pot.
  • Fig. 2 shows a sectional view of the cover plate FIG. 1 with a survey 12, which consists of a glued, welded or fused to the glass plate metal element.
  • the metal element is made of a cut to length, rounded end band material having a flat bottom for connection to the cover plate and a convex top.
  • Fig. 4 shows a sectional view of a cover plate of a hob according to a further alternative embodiment of the invention.
  • the elevations 12 are formed as bonded to the cover metal elements which are inserted into corresponding recesses 18 in the glass ceramic material of the cover plate and / or anchored in holes in the cover plate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Cookers (AREA)
  • Electric Stoves And Ranges (AREA)
  • Baking, Grill, Roasting (AREA)
  • Induction Heating Cooking Devices (AREA)
EP10158901.8A 2009-04-17 2010-04-01 Plaque de recouvrement pour une plaque de cuisson Withdrawn EP2241822A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200930076A ES2361106B1 (es) 2009-04-17 2009-04-17 Placa de cubierta para un campo de cocción.

Publications (2)

Publication Number Publication Date
EP2241822A2 true EP2241822A2 (fr) 2010-10-20
EP2241822A3 EP2241822A3 (fr) 2017-09-13

Family

ID=42561056

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10158901.8A Withdrawn EP2241822A3 (fr) 2009-04-17 2010-04-01 Plaque de recouvrement pour une plaque de cuisson

Country Status (2)

Country Link
EP (1) EP2241822A3 (fr)
ES (1) ES2361106B1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55152694U (fr) * 1979-04-19 1980-11-04
DE3602666A1 (de) 1986-01-29 1987-07-30 Wmf Wuerttemberg Metallwaren Einrichtung zum kochen von speisen
JPH03122992A (ja) * 1989-10-04 1991-05-24 Matsushita Electric Ind Co Ltd 誘導加熱調理器
EP1217873A2 (fr) * 2000-12-21 2002-06-26 E.G.O. ELEKTRO-GERÄTEBAU GmbH Procédé et dispositif de détection de la température d'un ustensile de cuisine
CN2708602Y (zh) * 2004-05-31 2005-07-06 杨集芳 电磁炉面板
CN2851896Y (zh) * 2005-12-16 2006-12-27 古宝贵 电磁炉结构改良

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2257397A (en) * 1940-03-30 1941-09-30 Gas Products Corp Top burner closure structure
FR1114051A (fr) * 1954-11-12 1956-04-09 Ideal Standard Cuisinière à gaz
US3949183A (en) * 1972-10-20 1976-04-06 Mitsubishi Denki Kabushiki Kaisha Cover plate for induction heating apparatus
FR2669404A1 (fr) * 1990-11-16 1992-05-22 Philips Atoires Electronique Table chauffante et ustensile munis de moyens respectifs controlant selectivement leurs echanges thermiques.
IT1255337B (it) * 1992-07-13 1995-10-31 Whirlpool Italia Dispositivo per rilevare la presenza e/o la temperatura di un contenitore per la preparazione di alimenti posto su un piano di cottura in vetroceramica
FR2773873B1 (fr) * 1998-01-20 2000-02-25 Eurokera Appareil de cuisson
EP1249665B1 (fr) * 2001-04-11 2006-08-09 Whirlpool Corporation Brûleur à gaz et réchaud avec un tel brûleur

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55152694U (fr) * 1979-04-19 1980-11-04
DE3602666A1 (de) 1986-01-29 1987-07-30 Wmf Wuerttemberg Metallwaren Einrichtung zum kochen von speisen
JPH03122992A (ja) * 1989-10-04 1991-05-24 Matsushita Electric Ind Co Ltd 誘導加熱調理器
EP1217873A2 (fr) * 2000-12-21 2002-06-26 E.G.O. ELEKTRO-GERÄTEBAU GmbH Procédé et dispositif de détection de la température d'un ustensile de cuisine
CN2708602Y (zh) * 2004-05-31 2005-07-06 杨集芳 电磁炉面板
CN2851896Y (zh) * 2005-12-16 2006-12-27 古宝贵 电磁炉结构改良

Also Published As

Publication number Publication date
EP2241822A3 (fr) 2017-09-13
ES2361106A1 (es) 2011-06-14
ES2361106B1 (es) 2012-04-20

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