EP0233375A2 - Plaque céramique avec radiateurs ayant des conducteurs de chauffage à incandescence instantanée à l'allumage - Google Patents

Plaque céramique avec radiateurs ayant des conducteurs de chauffage à incandescence instantanée à l'allumage Download PDF

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Publication number
EP0233375A2
EP0233375A2 EP86118182A EP86118182A EP0233375A2 EP 0233375 A2 EP0233375 A2 EP 0233375A2 EP 86118182 A EP86118182 A EP 86118182A EP 86118182 A EP86118182 A EP 86118182A EP 0233375 A2 EP0233375 A2 EP 0233375A2
Authority
EP
European Patent Office
Prior art keywords
heating
hob according
switching element
switching
preselected
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.)
Ceased
Application number
EP86118182A
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German (de)
English (en)
Other versions
EP0233375A3 (fr
Inventor
Herwig Scheidler
Martin Taplan
Kurt Schaupert
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 EP0233375A2 publication Critical patent/EP0233375A2/fr
Publication of EP0233375A3 publication Critical patent/EP0233375A3/fr
Ceased legal-status Critical Current

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    • 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
    • H05B3/748—Resistive heating elements, i.e. heating elements exposed to the air, e.g. coil wire heater

Definitions

  • the accompanying invention relates to glass ceramic hobs with radiant heaters.
  • the aim of the present invention is a glass ceramic hob, which is constructed or its radiators are electrically connected so that the disadvantageous inertia of the radiant heater is avoided during the heating phase, but the high cost of radiators should be avoided with halogen lamps and at the same time the previous variety of radiator geometries should be retained.
  • the invention can be implemented universally with all designs of radiant heaters (single-circuit, multi-circuit radiators) and can be combined with conventional regulating organs of radiant heaters.
  • the cost of such solutions is significantly lower than that of radiators with halogen lamps.
  • the heating conductors glow in seconds and become visible through the cooking surface. At the same time, you can feel the heat generated by the glowing heating conductor above the cooking surface immediately after switching on, which reinforces the impression of responsive heating.
  • FIG. 1 shows a hob 10 according to the present invention with a mains connection 12 which is connected to a conventional power supply for hobs, e.g. 220 volts, is connected.
  • a mains connection 12 which is connected to a conventional power supply for hobs, e.g. 220 volts, is connected.
  • Several switching elements 14 are connected to the mains connection. For simplification, only one switching element 14 is shown in FIG. 1.
  • a control element 16 which can be a stepless switch, is connected to this switching element in such a way that the output of the radiator is controlled after the first heating phase described.
  • the heater 18 has a heating circuit which is arranged so that it is overloaded for a short time and glows visibly in a short time.
  • the heating circuit is switched so that the current is reduced after this short time in order to avoid damage to the heating circuits due to the initial overload.
  • a first embodiment of a radiator 18 is shown in Figure 2.
  • the radiator 18 has a first heating conductor 20 and a second heating conductor 22, which are connected in parallel to the 220 volt voltage source during the first heating phase.
  • the heating conductors 20 and 22 are switched from parallel to series connection for normal operation. Due to the total resistance of the heating conductors, the current flowing through is reduced, so that the initial overload is replaced by normal operation.
  • a second embodiment of a radiator 18 is shown schematically in FIG. 3.
  • the heating conductors 20, 22 are connected in parallel with one another and with a third heating conductor 24.
  • the heating conductors 20, 22 are connected in series; but they remain in parallel with respect to the heating conductor 24. This increases the total resistance of the circuit, which leads to a reduction in the current flowing through the heating conductors 20, 22 while maintaining the voltage of 220 V.
  • Figure 4 shows a circuit which operates according to the embodiment shown in Figure 2.
  • the heating conductors 20 and 22 are shown as resistors.
  • the 220 V voltage source is connected via suitable switching elements 14, regulating elements 16 and mains connection 12 at points 26 and 28 to the circuit.
  • the radiators 18 have a rapid heating circuit with the switches 30, 32 and 34, which together e.g. can be controlled by the timer 36.
  • the timer 36 automatically goes to zero position when there is no voltage at points 26 and 28.
  • the switches 30, 32 and 34 are in the positions shown in FIG. 4.
  • a current flows through the resistor 20 and the switch 30 and through the parallel connected resistor 22 and the switch 34. After a suitable period of time, e.g. 5-20 sec. The timer opens switches 30 and 34 and simultaneously closes switch 32. As a result, the current flows through resistors 20 and 22, which are now connected in series, and through switch 32. This mode of operation is maintained as long as the voltage at points 26, 28 is present. If the voltage is removed again, the timer 36 returns to the original position shown in FIG. 4.
  • FIG. 5 schematically shows a circuit according to the embodiment in FIG. 3.
  • an additional resistor 39 is used to heat the bimetal strip 38.
  • This bimetal strip is connected to the switches 30, 32 and 34 in such a way that when sufficient heat has been generated by resistor 39, switch 30, 32 and 34 from the position shown, in which resistors 20 and 22 are connected in parallel, to the position in which resistors 20, 22 are connected in series via switch 32 are switched.
  • This mode of operation is in turn maintained as long as voltage is present at points 26, 28.
  • the position initially explained is assumed after a corresponding cooling time, which depends on the physical properties of the bimetal strip 38.
  • FIG. 6 shows a further embodiment of the invention, wherein two heating conductors 20, 22 are permanently connected in parallel to each other.
  • the heating conductors 20, 22 are connected in series with the resistor 40, which has a positive temperature coefficient such that the resistor 40 can flow a large current to the heating conductors 20, 22 in the cold state, but which decreases with increasing heating.
  • FIG. 7 schematically shows a circuit that works according to FIG. 3.
  • an additional rectifier 44 is used to reduce the power of the rapid heating coil after the heating phase.
  • the switch 34 which e.g. is controlled with a timing element 36, both half-waves of the alternating current are applied to the heating element 20.
  • the heating element 24 is connected in parallel.
  • FIG. 8 shows a circuit that operates according to FIG. 3, in which the power consumption is practically constant, even during the heating phase.
  • the resistance values of the coils 20 to 22 are designed such that the coil 20 and the combination 20 to 22 have approximately the same resistance.
  • filament 20 may have the same resistance as filament 22 and filament 24 twice this value.
  • switch 30 only
  • Switch 30 is also used here e.g. controlled by a timer.
  • the resistance values can also be selected so that the power consumption in the heating phase is less than the nominal power consumption. Any desired overload for the coil 20 can be set via the ratio of the resistances of the coils 20 and 22.
  • FIG. 9 shows a preferred embodiment of a radiator with the resistor arrangement of FIG. 6, the heat-sensitive series resistor 40 being arranged in the outer region of the radiator 18, which is fastened to the bottom of a glass ceramic cooking surface 42 using known means.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • Electric Stoves And Ranges (AREA)
  • Control Of Resistance Heating (AREA)
EP86118182A 1986-01-04 1986-12-31 Plaque céramique avec radiateurs ayant des conducteurs de chauffage à incandescence instantanée à l'allumage Ceased EP0233375A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3600110 1986-01-04
DE3600110 1986-01-04

Publications (2)

Publication Number Publication Date
EP0233375A2 true EP0233375A2 (fr) 1987-08-26
EP0233375A3 EP0233375A3 (fr) 1988-07-20

Family

ID=6291414

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86118182A Ceased EP0233375A3 (fr) 1986-01-04 1986-12-31 Plaque céramique avec radiateurs ayant des conducteurs de chauffage à incandescence instantanée à l'allumage

Country Status (5)

Country Link
US (1) US4772779A (fr)
EP (1) EP0233375A3 (fr)
JP (1) JPS62271386A (fr)
CA (1) CA1284165C (fr)
DD (1) DD253137A5 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3623130A1 (de) * 1986-07-09 1988-01-21 Ako Werke Gmbh & Co Strahlungsbeheizung
EP0250880A3 (en) * 1986-07-03 1989-02-08 E.G.O. Elektro-Gerate Blanc U. Fischer Radiant heating element
EP0384659A2 (fr) * 1989-02-20 1990-08-29 Emaco Ltd. Plaques de cuisinière
US5001329A (en) * 1989-01-26 1991-03-19 Kabushiki Kaisha Toshiba Electric cooking appliance
EP0427433A2 (fr) * 1989-11-04 1991-05-15 Ceramaspeed Limited Appareil de chauffage électrique rayonnant
DE4224666A1 (de) * 1992-07-25 1994-01-27 Ako Werke Gmbh & Co Schaltung eines Strahlungsheizkörpers
DE19542581A1 (de) * 1995-10-31 1997-06-26 Ako Werke Gmbh & Co Strahlheizkörper
EP0777405A3 (fr) * 1995-11-30 1997-12-29 Ceramaspeed Limited Elément de chauffage électrique rayonnant et sa méthode de fonctionnement
EP0784416A3 (fr) * 1996-01-09 1997-12-29 AKO-Werke GmbH & Co. KG Elément de chauffage
EP0886459A2 (fr) * 1997-05-22 1998-12-23 Ceramaspeed Limited Méthode et appareil pour le contrÔle d'un élément chauffant électrique
EP0930805A2 (fr) * 1998-01-16 1999-07-21 Ceramaspeed Limited Elément de chauffage électrique rayonnant
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

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8720056D0 (en) * 1987-08-25 1987-09-30 Micropore International Ltd Electric heater assemblies
GB2246033A (en) * 1990-07-09 1992-01-15 Redring Electrical Ltd Control circuit for an electric heating appliance
DE4022845A1 (de) * 1990-07-18 1992-01-23 Schott Glaswerke Temperatursensor oder -sensoranordnung aus glaskeramik und kontaktierenden filmwiderstaenden
GB2251988A (en) * 1991-01-16 1992-07-22 Alfred Alexander Staden Rapid warm-up control system for process ovens
DE19507627A1 (de) * 1995-03-04 1996-09-05 Ego Elektro Blanc & Fischer Relais für Leistungs-Verbraucher od. dgl.
DE19604658A1 (de) * 1996-02-09 1997-08-14 Ako Werke Gmbh & Co Temperaturmeßeinrichtung für eine Regelschaltung eines elektrischen Strahlungsheizgeräts
US6093914A (en) * 1999-06-10 2000-07-25 Diekmann; Mark J. Electric cooking appliance
KR20020057156A (ko) * 2000-12-30 2002-07-11 구자홍 전자레인지의 콤비제어 방법
GB0112120D0 (en) * 2001-05-18 2001-07-11 Ceramaspeed Ltd Method and apparatus for controlling an elelctric cooking appliance
US6940049B2 (en) * 2003-07-23 2005-09-06 Maytag Corporation Heating element temperature control for a cooking appliance
US20050244150A1 (en) * 2004-04-30 2005-11-03 Hygema Terry L Fused heater circuit with voltage reducing diode
DE202005001066U1 (de) * 2005-01-21 2005-03-31 Dreefs Gmbh Schaltgeraete Energieregler für das Kochfeld von Elektroherden
US20080142505A1 (en) * 2006-12-18 2008-06-19 Bsh Home Appliances Corporation Low simmer heating element with mechanical switches
US20140318382A1 (en) * 2010-05-11 2014-10-30 Standex International Corporation Quick heating quartz toaster
US11566793B2 (en) * 2015-01-20 2023-01-31 Robertshaw Controls Company Electro-mechanical energy regulator providing enhanced simmer performance
WO2017152225A1 (fr) * 2016-03-09 2017-09-14 Dmp Enterprises Pty Ltd Four de type à convoyeur
US11810741B2 (en) 2020-11-09 2023-11-07 Robertshaw Controls Company Increased push travel alternative for energy regulator
CN215305176U (zh) * 2021-06-15 2021-12-28 江门市新会恒隆家居创新用品有限公司 多士炉

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1520241A (en) * 1922-02-06 1924-12-23 Arthur H Happe Electric heater
DE1097586B (de) * 1954-11-30 1961-01-19 Karl Fischer Kochplatte mit Mehrstufenschalter
AT256265B (de) * 1964-03-10 1967-08-10 Ernst Dreefs Ges Mit Beschraen Siebentaktregelschaltung für Kochplatten
DE2221874A1 (de) * 1972-05-04 1973-11-29 Bosch Siemens Hausgeraete Anordnung zur leistungsregelung bei elektrischen kochplatten
EP0079483A1 (fr) * 1981-11-10 1983-05-25 E.G.O. Elektro-Geräte Blanc u. Fischer Dispositif de commande pour une plaque de cuisson électrique
DE3314501A1 (de) * 1983-04-21 1984-10-25 Ego Elektro Blanc & Fischer Heizelement, insbesondere strahlungs-heizelement fuer die beheizung von glaskeramikplatten
DE3345991A1 (de) * 1983-12-20 1985-06-27 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Anordnung zur leistungsregelung elektrischer kochplatten, vorzugsweise glaskeramik-kochplatten

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2322162A (en) * 1940-01-04 1943-06-15 Gen Electric Control arrangement for signal devices
US3375346A (en) * 1965-09-22 1968-03-26 Gen Motors Corp Infrared surface heating unit with two filaments
US4039771A (en) * 1972-11-08 1977-08-02 Danfoss A/S Coffee maker
DE2951409A1 (de) * 1979-12-20 1981-07-02 Bosch Siemens Hausgeraete Signaleinrichtung fuer kochplatten, insbesondere glaskeramik-kochplatten
DE3027998A1 (de) * 1980-07-24 1982-02-25 Fischer, Karl, 7519 Oberderdingen Elektrische kochplatte mit einem ueberhitzungsschutzschalter
US4486648A (en) * 1981-08-06 1984-12-04 Micropore International Limited Energy regulator for a household heating appliance for producing variable speed initial heating
DE3327622A1 (de) * 1983-07-30 1985-02-07 Blanc Gmbh & Co, 7519 Oberderdingen Elektrische heizplatte fuer ein glaskeramik-kochfeld
GB8412339D0 (en) * 1984-05-15 1984-06-20 Thorn Emi Domestic Appliances Heating apparatus

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1520241A (en) * 1922-02-06 1924-12-23 Arthur H Happe Electric heater
DE1097586B (de) * 1954-11-30 1961-01-19 Karl Fischer Kochplatte mit Mehrstufenschalter
AT256265B (de) * 1964-03-10 1967-08-10 Ernst Dreefs Ges Mit Beschraen Siebentaktregelschaltung für Kochplatten
DE2221874A1 (de) * 1972-05-04 1973-11-29 Bosch Siemens Hausgeraete Anordnung zur leistungsregelung bei elektrischen kochplatten
EP0079483A1 (fr) * 1981-11-10 1983-05-25 E.G.O. Elektro-Geräte Blanc u. Fischer Dispositif de commande pour une plaque de cuisson électrique
DE3314501A1 (de) * 1983-04-21 1984-10-25 Ego Elektro Blanc & Fischer Heizelement, insbesondere strahlungs-heizelement fuer die beheizung von glaskeramikplatten
DE3345991A1 (de) * 1983-12-20 1985-06-27 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Anordnung zur leistungsregelung elektrischer kochplatten, vorzugsweise glaskeramik-kochplatten

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0250880A3 (en) * 1986-07-03 1989-02-08 E.G.O. Elektro-Gerate Blanc U. Fischer Radiant heating element
DE3623130A1 (de) * 1986-07-09 1988-01-21 Ako Werke Gmbh & Co Strahlungsbeheizung
US5001329A (en) * 1989-01-26 1991-03-19 Kabushiki Kaisha Toshiba Electric cooking appliance
EP0384659A2 (fr) * 1989-02-20 1990-08-29 Emaco Ltd. Plaques de cuisinière
EP0384659A3 (fr) * 1989-02-20 1992-02-19 Emaco Ltd. Plaques de cuisinière
EP0427433A2 (fr) * 1989-11-04 1991-05-15 Ceramaspeed Limited Appareil de chauffage électrique rayonnant
EP0427433A3 (en) * 1989-11-04 1992-04-08 Ceramaspeed Limited Radiant electric heaters
DE4224666C2 (de) * 1992-07-25 1999-05-06 Ako Werke Gmbh & Co Schaltung eines Strahlungsheizkörpers
DE4224666A1 (de) * 1992-07-25 1994-01-27 Ako Werke Gmbh & Co Schaltung eines Strahlungsheizkörpers
DE19542581A1 (de) * 1995-10-31 1997-06-26 Ako Werke Gmbh & Co Strahlheizkörper
US5892206A (en) * 1995-11-30 1999-04-06 Ceramasdeed Limited Radiant electric heater arrangement and method of operating the same
EP0777405A3 (fr) * 1995-11-30 1997-12-29 Ceramaspeed Limited Elément de chauffage électrique rayonnant et sa méthode de fonctionnement
EP0784416A3 (fr) * 1996-01-09 1997-12-29 AKO-Werke GmbH & Co. KG Elément de chauffage
EP0886459A2 (fr) * 1997-05-22 1998-12-23 Ceramaspeed Limited Méthode et appareil pour le contrÔle d'un élément chauffant électrique
EP0886459A3 (fr) * 1997-05-22 1999-10-13 Ceramaspeed Limited Méthode et appareil pour le contrÔle d'un élément chauffant électrique
EP0930805A2 (fr) * 1998-01-16 1999-07-21 Ceramaspeed Limited Elément de chauffage électrique rayonnant
EP0930805A3 (fr) * 1998-01-16 2000-03-08 Ceramaspeed Limited Elément de chauffage électrique rayonnant
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

Also Published As

Publication number Publication date
JPS62271386A (ja) 1987-11-25
DD253137A5 (de) 1988-01-06
US4772779A (en) 1988-09-20
EP0233375A3 (fr) 1988-07-20
CA1284165C (fr) 1991-05-14

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