EP0103741A2 - Elément chauffant, en particulier élément chauffant radiant pour le chauffage de plaques en céramique - Google Patents

Elément chauffant, en particulier élément chauffant radiant pour le chauffage de plaques en céramique Download PDF

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Publication number
EP0103741A2
EP0103741A2 EP83107991A EP83107991A EP0103741A2 EP 0103741 A2 EP0103741 A2 EP 0103741A2 EP 83107991 A EP83107991 A EP 83107991A EP 83107991 A EP83107991 A EP 83107991A EP 0103741 A2 EP0103741 A2 EP 0103741A2
Authority
EP
European Patent Office
Prior art keywords
heating
resistor
zone
heating resistor
heating element
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
EP83107991A
Other languages
German (de)
English (en)
Other versions
EP0103741B1 (fr
EP0103741A3 (en
Inventor
Gerhard Goessler
Eugen Wilde
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.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Gerate Blanc und Fischer 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25804505&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0103741(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE19823234349 external-priority patent/DE3234349A1/de
Priority claimed from DE19833314501 external-priority patent/DE3314501A1/de
Application filed by EGO Elektro Gerate Blanc und Fischer GmbH filed Critical EGO Elektro Gerate Blanc und Fischer GmbH
Priority to AT83107991T priority Critical patent/ATE38757T1/de
Publication of EP0103741A2 publication Critical patent/EP0103741A2/fr
Publication of EP0103741A3 publication Critical patent/EP0103741A3/de
Application granted granted Critical
Publication of EP0103741B1 publication Critical patent/EP0103741B1/fr
Expired 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
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0202—Switches
    • H05B1/0216—Switches actuated by the expansion of a solid element, e.g. wire or rod
    • 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
    • F24C15/106—Tops, e.g. hot plates; Rings electrically heated electric circuits
    • 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
    • H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator
    • 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
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/037—Heaters with zones of different power density
    • 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
    • H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
    • H05B2213/04—Heating plates with overheat protection means

Definitions

  • the invention relates to a heating element, in particular a radiant heating element for heating glass ceramic plates in cooking appliances with at least two separately switchable heating zones with electrical heating resistors.
  • the object of the invention is to provide a heating element which, despite increased performance and good manufacturability, permits uniform heat distribution when both heating zones are switched on.
  • the invention solves this problem in that a heating resistor of one of the heating zones heating resistor of the other heating zone can be connected in series.
  • a high output with high specific heating surface load can be installed in the heating zone, which can be switched on alone, usually the central zone, while a uniform power distribution is achieved when switching over to the total heating surface of the heating element.
  • the series resistor can be arranged in the other, for example outer, heating zone in addition to a further heating resistor which can be connected, for example, in parallel with the middle heating resistor which can be switched on alone.
  • the power distribution can be set as desired; when operating with both heating zones, the specific heating surface load of the central zone can be lower than that of the outer one.
  • This embodiment is particularly suitable for heating elements which deliberately have two different sized or differently designed heating zones which are switched on differently according to the size or shape of the pot.
  • the upstream heating resistor can be connected up to normal power in order to reduce an increased parboiling power provided in the other heating resistor. If the upstream heating resistor closely surrounds a central heating zone containing the other heating resistor, this results in an overall cooking surface which is often not significantly larger than that which is occupied by the heating resistor which can only be switched on.
  • the total cooking surface switched on then has a lower total output than the central zone alone.
  • the outer heating zone can be integrated into an overall winding to the extent that it takes up the outer or, in special cases, the inner turn or double turn of the spirally laid turns of both heating zones.
  • DE-A-30 07 037 also shows, in the case of heating elements with two heating zones, in accordance with the heat effect on the temperature sensor of a temperature limiter which is limited to only a certain area in a heating zone, to equip it with switches of different response temperature in order to switch off at a comparable surface temperature To reach glass ceramic plate. It is then it is necessary to lay four supply lines between the control unit and the heating element and to design the switch for the second heating zone as a double switch. If, in a particularly preferred exemplary embodiment of the invention, a temperature limiter is provided with two contacts of different response temperature, of which the one with a low response temperature is designed as a changeover contact, this problem is solved.
  • the changeover switch switches while the individually to be switched on heating element when reaching the lower adjusted response temperature of a current branch before Zuschalter to a current branch behind the Zuschalter in a way, that it is turned off in isolation circuit, but at one - chalcones both heating zones tung again with its, if appropriate, reduced power is switched on by the series resistor.
  • This circuit only requires three hotplate feed lines and a simple switch for connecting the second heating zone.
  • a radiant heating element 11 is shown for a glass ceramic hotplate of a cooker. It contains on an insulating support 12 heating resistors 13, 14, 15, which consist of wire coils, which are attached in the form of circular arcs, spirals or double spirals on the surface of the insulating support.
  • the central heating zone 16 contains the heating resistor 13 and is surrounded by an annular heating zone 17 with a much larger total area, in which a main heating resistor 14 is arranged in the form of an annular loop with four coils running parallel to one another, but between the two outer strands
  • the heating resistor 15 is arranged in the form of a simple, curved loop over a sector of, for example, 60 ° and there supplements the main heating resistor 14 to the four strands.
  • a rod-shaped temperature sensor 18 of a temperature limiter 19 protrudes diametrically over both heating zones 16, 17 and protects the glass ceramic plate from harmful overheating by switching off the heating resistors.
  • the temperature limiter contains two switching contacts 20, 21 which are adjusted to different response points and of which the contact 21 is a changeover contact.
  • a clocking power control device 22 is used to control the power. It contains a bimetal 23 which is heated by a control heating resistor 24 and which acts on a switch 25, the power which is thereby clocked in different relative operating times being adjustable via an adjusting knob 26.
  • the outer heating zone 17 can be activated by an additional switch 27.
  • the power supply to the heating element 11 takes place via the switch 25 and the contact 20 of the temperature limiter 19 adjusted to a higher temperature.
  • the heating resistors 14 and 13 are connected to this branch 28.
  • the other end of the central heating resistor 13 leaves to the other switching contact 21 of the temperature limiter and can be branched there to two connections, on the one hand with the other network pole 29 and on the other hand with a supply line 30 to the series heating resistor 15 in connection.
  • the other ends of the heating resistors 14, 15 are put together at the switch 27.
  • the outer heating zone 17 is switched on via the additional switch 27, the unimpeded power of the heating resistor 13, for example 900 watts, and the power of the heating resistor 14 (for example 1400 watts) is switched on when the heating element was previously cold, that is to say not yet responding contact 21, so that a high total power is switched on for parboiling. Since the entire temperature sensor length is now heated, contact 21 is switched much earlier, ie at a temperature significantly below the limit temperature. By switching over to contact 31, heating resistor 15 is now connected in series to heating resistor 13, so that the power of heating resistor 13 is considerably reduced (for example to 650 watts), while the outer heating zone has a relatively small proportion of power due to the pre-heating resistor 15 will be added.
  • the specific heating surface loads can be adapted to the circumstances by appropriately dimensioning the heating resistors. In any case, it is possible to achieve a uniform specific heating surface load over the entire surface, or even to choose a lower one in the central area.
  • the contact 20 switches off the total power and switches it on again when the temperature drops.
  • the arrangement of the heating resistors can be different.
  • the arrangement of the cut-in heating resistor 15 which is limited to a ring segment, this could also be arranged, for example, as a turn running around the entire heating element, for example as the inner turn.
  • the advantage remains that not only the output of the other heating zone is reduced by the series heating resistor, but also the additional heating zone 17 receives an additional output by the series heating resistor.
  • the arrangement can also be useful in a configuration other than circularly concentric, for example in a rectangular heating element with a central round hotplate and additional heating zones attached on both sides, the elongated rectangular cooking surfaces being mostly used for heating and therefore a uniform power distribution is particularly important.
  • the temperature limiter described has the advantage that the switch options described are possible with only one additional switch 27 as a result of the changeover switch 21, because when the lower response temperature is reached, the changeover switch switches the heating resistor 13, which was previously only switched on, in parallel with the heating resistor 14. Heating resistor 15 is connected upstream. This advantage also results without using the series heating resistor_ for heating elements with two separately switchable heating resistors and a temperature limiter with two different response temperatures. It is also possible to connect a plurality of heating resistors for more than two heating zones individually or in parallel, preferably with a series heating resistor.
  • FIG. 2 shows a home element in which there are two heating zones 16a, 17a, but which are not as clearly separated from one another as in FIG. 1. As in FIG. 1, they are not intended to heat pots of different sizes , but are assigned to a cooktop of uniform size. Accordingly, the bowl-shaped insulating body 35, in which the heating resistors 13a, 15a are arranged, also has no internal subdivisions, but only an edge 36 surrounding the common hotplate formed from both heating zones, which lies against the underside of the glass ceramic plate.
  • both heating elements are in the form of a double spiral, i.e. a spiral with two parallel turns in the reverse turns in the middle of the heating element.
  • the outer heating resistor extends between a terminal 37 and a tap 38, which is formed by an inserted connecting pin between the heating resistors 13a, 15a, while the central main heating resistor 13a is connected between a terminal 39 on the inside of the outer double turn and the tap 38 .
  • a temperature limiter 19a is provided, the rod temperature sensor 18a of which projects somewhat eccentrically over both heating zones 16a, 17a.
  • the temperature limiter 19a has only a simple switching contact, which is opened when the response temperature is reached.
  • the strong power concentration in the heating area is also less critical, because in this.
  • the service life of the heating elements is also surprisingly good.
  • the switch 27 is preferably operated manually, but could also be operated thermally or by a timer.

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)
  • Electric Stoves And Ranges (AREA)
  • Control Of Resistance Heating (AREA)
EP83107991A 1982-09-16 1983-08-12 Elément chauffant, en particulier élément chauffant radiant pour le chauffage de plaques en céramique Expired EP0103741B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83107991T ATE38757T1 (de) 1982-09-16 1983-08-12 Heizelement, insbesondere strahlungsheizelement fuer die beheizung von glaskeramikplatten.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE19823234349 DE3234349A1 (de) 1982-09-16 1982-09-16 Heizkoerper fuer glaskeramikkochflaechen
DE3234349 1982-09-16
DE3314501 1983-04-21
DE19833314501 DE3314501A1 (de) 1983-04-21 1983-04-21 Heizelement, insbesondere strahlungs-heizelement fuer die beheizung von glaskeramikplatten

Publications (3)

Publication Number Publication Date
EP0103741A2 true EP0103741A2 (fr) 1984-03-28
EP0103741A3 EP0103741A3 (en) 1984-07-25
EP0103741B1 EP0103741B1 (fr) 1988-11-17

Family

ID=25804505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83107991A Expired EP0103741B1 (fr) 1982-09-16 1983-08-12 Elément chauffant, en particulier élément chauffant radiant pour le chauffage de plaques en céramique

Country Status (7)

Country Link
US (1) US4511789A (fr)
EP (1) EP0103741B1 (fr)
AU (1) AU1912683A (fr)
DE (1) DE3378516D1 (fr)
ES (1) ES8406833A1 (fr)
GR (1) GR81429B (fr)
YU (1) YU44859B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3503648A1 (de) * 1984-09-22 1986-04-03 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Strahlheizkoerper fuer kochgeraete
EP0124778B1 (fr) * 1983-04-28 1989-10-04 E.G.O. Elektro-Geräte Blanc u. Fischer Plaque électrique de cuisinière ou plaque chauffante
DE4438648A1 (de) * 1994-10-28 1996-05-02 Ego Elektro Blanc & Fischer Strahlungsheizkörper
EP0777405A3 (fr) * 1995-11-30 1997-12-29 Ceramaspeed Limited Elément de chauffage électrique rayonnant et sa méthode de fonctionnement
WO2013186062A1 (fr) * 2012-06-13 2013-12-19 Eika, S.Coop. Appareil de cuisson adapté à une table de cuisson, en particulier une table de cuisson vitrocéramique
EP2983449A1 (fr) * 2014-08-08 2016-02-10 BSH Hausgeräte GmbH Procede d'acceleration d'un processus de cuisson, dispositif de commande et appareil de cuisson correspondant
CN108652424A (zh) * 2018-06-13 2018-10-16 李金胜 一种电热锅加热系统

Families Citing this family (33)

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Publication number Priority date Publication date Assignee Title
DE3417713A1 (de) * 1984-05-12 1985-11-14 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Elektrokochplatte
EP0176027B1 (fr) * 1984-09-22 1989-02-01 E.G.O. Elektro-Geräte Blanc u. Fischer Elément chauffant à rayons pour appareils de cuisson
USD313466S (en) 1985-06-11 1991-01-01 Micropore International Ltd. Infra-red heater
GB8514785D0 (en) * 1985-06-11 1985-07-10 Micropore International Ltd Infra-red heaters
US4695335A (en) * 1985-11-08 1987-09-22 R. W. Lyall & Company, Inc. Method for developing a predetermined fusing temperature in thermoplastic items
GB8601789D0 (en) * 1986-01-24 1986-02-26 Redring Electric Ltd Electric hobs & heating units
EP0234373A3 (fr) * 1986-02-26 1988-03-02 E.G.O. Elektro-Geräte Blanc u. Fischer Unité de cuisson avec élément chauffant radiant
DE3622415A1 (de) * 1986-07-03 1988-01-07 Ego Elektro Blanc & Fischer Strahlheizkoerper
DE8711209U1 (de) * 1987-08-18 1987-10-01 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Elektrischer Heizkörper
GB8720054D0 (en) * 1987-08-25 1987-09-30 Micropore International Ltd Radiant electric heater assemblies
US4943706A (en) * 1988-04-18 1990-07-24 R. W. Lyall & Company, Inc. Method and apparatus for fusing thermoplastic materials
GB2228395A (en) * 1989-02-20 1990-08-22 Emaco Electric hotplates
US5294778A (en) * 1991-09-11 1994-03-15 Lam Research Corporation CVD platen heater system utilizing concentric electric heating elements
ES2049180B1 (es) * 1992-09-17 1996-11-01 Eika S Coop Ltda Mejoras en calefactores radiantes.
US6469283B1 (en) * 1999-03-04 2002-10-22 Applied Materials, Inc. Method and apparatus for reducing thermal gradients within a substrate support
US6222247B1 (en) * 1999-12-02 2001-04-24 United Microelectronics Corp. Semiconductor resistor that can be withstand high voltages
DE10053415A1 (de) * 2000-10-27 2002-05-29 Bsh Bosch Siemens Hausgeraete Elektrischer Heizkörper
GB0115831D0 (en) * 2001-06-28 2001-08-22 Ceramaspeed Ltd Radiant electric heater
GB0203826D0 (en) * 2002-02-19 2002-04-03 Ceramaspeed Ltd Electric heater assembly
GB0217351D0 (en) * 2002-07-25 2002-09-04 Ceramaspeed Ltd Radiant electric heater
ES2222804B1 (es) * 2003-06-13 2005-10-01 Bsh Electrodomesticos España, S.A. Procedimiento para calentar un recipiente sensible a la temperatura y dispositivo de calentamiento correspondiente.
GB0316627D0 (en) * 2003-07-16 2003-08-20 Ceramaspeed Ltd Radiant electric heater
DE10356790A1 (de) * 2003-12-04 2005-07-07 BSH Bosch und Siemens Hausgeräte GmbH Heizvorrichtung für Fluide, Durchlauferhitzer und Verfahren zu deren Herstellung
US7038176B2 (en) * 2004-02-25 2006-05-02 Maytag Corporation Infinite temperature control for heating element of a cooking appliance
US7180038B2 (en) * 2004-08-03 2007-02-20 E.G.O. Elektro-Geraetebau Gmbh Device for switching on and off several heating mechanisms of cooking equipment as well as cooking equipment with such a device
US7230209B2 (en) * 2005-04-26 2007-06-12 Maytag Corporation Dual voltage infinite temperature control for an electric cooking appliance
US20080142505A1 (en) * 2006-12-18 2008-06-19 Bsh Home Appliances Corporation Low simmer heating element with mechanical switches
US8274020B2 (en) * 2010-05-04 2012-09-25 Whirlpool Corporation Apparatus and method of controlling a triple heating element of a cooking appliance
FR2985650B1 (fr) * 2012-01-16 2016-03-11 Seb Sa Procede d'information d'une cuisson d'aliment et appareil associe
DE102013216290B4 (de) 2013-08-16 2015-09-03 E.G.O. Elektro-Gerätebau GmbH Heizeinrichtung und Verfahren zum Betrieb einer Heizeinrichtung
JP6219229B2 (ja) * 2014-05-19 2017-10-25 東京エレクトロン株式会社 ヒータ給電機構
EP3411629B1 (fr) * 2016-02-01 2022-02-23 Evo, Inc. Système de cuisson ayant de multiples éléments chauffants
KR102111109B1 (ko) * 2017-02-21 2020-05-14 엘지전자 주식회사 면상 발열장치, 이를 포함하는 전기 레인지 및 그 제조방법

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FR888388A (fr) * 1942-04-24 1943-12-10 Entpr S Electr Fribourgeoises Plaque de chauffe électrique dont la partie chauffante est formée d'au moins deux pièces distinctes
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DE2221874C3 (de) * 1972-05-04 1974-12-12 Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart Anordnung zur Leistungsregelung bei elektrischen Kochplatten
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DE2751991A1 (de) * 1977-11-22 1979-05-23 Ego Elektro Blanc & Fischer Kocheinheit mit einer von abgeflachten rohrheizkoerpern gebildeten kochflaeche
GB2044057B (en) * 1979-02-07 1983-04-20 Micropore International Ltd Smooth top cookers
GR69904B (fr) * 1979-10-27 1982-07-20 Ego Elektro Blanc & Fischer
NZ196104A (en) * 1980-02-01 1984-08-24 Micropore International Ltd Cooker plate with twin element:thermal cut-out for one
DE3007037A1 (de) * 1980-02-26 1981-09-03 Ego Elektro Blanc & Fischer Glaskeramik-kochgeraet
DE8133341U1 (de) * 1980-11-17 1982-03-25 Micropore International Ltd., Droitwich, Worcestershire Elektrischer strahlungsheizer fuer herde mit glaskeramikdeckplatten

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0124778B1 (fr) * 1983-04-28 1989-10-04 E.G.O. Elektro-Geräte Blanc u. Fischer Plaque électrique de cuisinière ou plaque chauffante
DE3503648A1 (de) * 1984-09-22 1986-04-03 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Strahlheizkoerper fuer kochgeraete
DE4438648A1 (de) * 1994-10-28 1996-05-02 Ego Elektro Blanc & Fischer Strahlungsheizkörper
EP0777405A3 (fr) * 1995-11-30 1997-12-29 Ceramaspeed Limited Elément de chauffage électrique rayonnant et sa méthode de fonctionnement
WO2013186062A1 (fr) * 2012-06-13 2013-12-19 Eika, S.Coop. Appareil de cuisson adapté à une table de cuisson, en particulier une table de cuisson vitrocéramique
EP2983449A1 (fr) * 2014-08-08 2016-02-10 BSH Hausgeräte GmbH Procede d'acceleration d'un processus de cuisson, dispositif de commande et appareil de cuisson correspondant
CN108652424A (zh) * 2018-06-13 2018-10-16 李金胜 一种电热锅加热系统

Also Published As

Publication number Publication date
ES525626A0 (es) 1984-07-16
EP0103741B1 (fr) 1988-11-17
YU44859B (en) 1991-04-30
DE3378516D1 (en) 1988-12-22
ES8406833A1 (es) 1984-07-16
GR81429B (fr) 1984-12-11
AU1912683A (en) 1984-03-22
US4511789A (en) 1985-04-16
YU187483A (en) 1985-12-31
EP0103741A3 (en) 1984-07-25

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