EP0754918B1 - Table de cuisson avec un dispositif détecteur pour éléments chauffants des cuisinières. - Google Patents

Table de cuisson avec un dispositif détecteur pour éléments chauffants des cuisinières. Download PDF

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Publication number
EP0754918B1
EP0754918B1 EP96710007A EP96710007A EP0754918B1 EP 0754918 B1 EP0754918 B1 EP 0754918B1 EP 96710007 A EP96710007 A EP 96710007A EP 96710007 A EP96710007 A EP 96710007A EP 0754918 B1 EP0754918 B1 EP 0754918B1
Authority
EP
European Patent Office
Prior art keywords
cooking
cooking surface
surface according
heating
monitoring sensor
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.)
Expired - Lifetime
Application number
EP96710007A
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German (de)
English (en)
Other versions
EP0754918A1 (fr
Inventor
Günter Dipl.-Ing. Zschau (FH)
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
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Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP0754918A1 publication Critical patent/EP0754918A1/fr
Application granted granted Critical
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Anticipated expiration legal-status Critical
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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
    • H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator

Definitions

  • the invention relates to a cooking surface with a sensor arrangement for hotplate heating elements, which are either radiant or mass radiators and are connected to cooktop layers made of metallic or non-metallic Materials of limited layer thickness exist.
  • a cooking surface is known from the publication US Pat. No. 4,286,377, which has a temperature sensor having. This is connected to a safety circuit around the mains supply to interrupt when the heating element of the hob is a certain temperature reached from which the heating element or the glass ceramic plate are damaged can.
  • the object of the invention is therefore to provide an effective and inexpensive monitoring method against breakage of radiant heaters and cooking surfaces of the above Way to create.
  • the arrangement according to the invention for solving this problem is characterized in that that a safety circuit fed by at least one monitoring sensor Radiant heat sources and / or heat conducting heat sources if the radiant heater breaks or switches off the hob.
  • a safety circuit fed by at least one monitoring sensor Radiant heat sources and / or heat conducting heat sources if the radiant heater breaks or switches off the hob.
  • An advantageous embodiment of the Invention is characterized in that the monitoring sensor from a monitoring conductor is formed, which encloses the heat source to be monitored. Further advantageous embodiments of the invention are contained in the subclaims. An embodiment according to the invention is below with reference to the drawing described in more detail.
  • a heat-conducting plate with a monitoring sensor can be seen, in detail from a heat-conducting carrier 1, a heating medium 2, from electrical Contacts 3 for the heating medium 2, from the monitoring conductor 4, and the voltage supply contacts 7 for the surveillance conductor track 4.
  • the associated 2 shows a cooking surface, for example glass ceramic cooking surface or glass surface, which is equipped with four individually monitored hotplates according to Fig.1.
  • the cooking surface 6 has a monitoring path 5, which encloses all hotplates and breaks in the vicinity of the hotplate or in the glass ceramic cooktop.
  • the Heat sources at risk of breakage for example heat-conducting layer heat sources, are through the application of at least one monitoring conductor track 4, 5 to voltage, overheating, Fatigue breaks monitored.
  • the monitoring path 4, 5 is included a safety circuit connected to the radiant heat sources and / or heat conducting heat sources switches off in the event of an accident. This usually happens because the monitoring path 4, 5 is connected to the control circuit of a relay circuit, which is connected in series to the respective radiator and switches off all poles, if an interruption of the monitoring path 4, 5 occurs in the monitoring circuit.
  • the relay for controlling the safety circuit can use a safety extra-low voltage be connected by a separately feeding transformer.
  • the requirements for the surveillance track are that it is sensibly protective is arranged around the heat sources, consists of sufficiently thin material, for example Gold, nickel silver, graphite, and by vapor deposition, sputtering or printing is applied.
  • the heating source can be assumed to be safe that the monitoring sensor 4, 5 also interrupts and thus triggers the safety circuit.
  • Both the monitoring sensor or sensors as well as the heat source structure can be designed in different ways his.
  • the structural shape of the heat source to be monitored can be changed, be applied in spiral orbits or in concentric orbits. It makes sense, to execute the monitoring sensor so that it conforms to the respective heat source structure largely approximated.
  • An inner and an outer monitoring sensor can be arranged be able to switch off different heating circuits if they break, whereby at least one of these several monitoring sensors 4, 5 for pot detection purposes is also usable. According to FIG.
  • the arrangement also provides that the monitoring sensor of each individual hotplate of a cooktop is assigned and the cooking surface itself also protects against breakage.
  • the hotplate is designed as a heat-conducting plate, its mass-determining electrical non-conductive layer of a silicon compound, for example silicon nitrite or silicon carbide, the monitoring sensor must have at least one closed Close surrounding of the heating surface.
  • thermal plates of the aforementioned type exist in particular in that with silicon nitride or silicon carbide substrates equipped heat conducting sources compared to previously known heating sources a very have a short comparison cooking time. Even the overall efficiency of such special Thermal plates are above 80% and thus significantly higher than previously known Heat source arrangements. The one that may occur at higher energies To master the likelihood of a heat break, it is necessary to security given by the arrangement according to the invention by means of a monitoring sensor to provide.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Electric Stoves And Ranges (AREA)
  • Resistance Heating (AREA)

Claims (10)

  1. Table de cuisson comprenant un dispositif détecteur pour éléments chauffants de cuisinières qui sont soit des éléments de chauffage à rayonnement, soit des éléments de chauffage par masse, et qui sont reliés aux couches d'une plaque froide cuisson formées de matériaux métalliques ou non métalliques d'épaisseur limitée, caractérisée en ce qu'un circuit de sécurité alimenté par au moins un détecteur de contrôle (4, 5) déconnecte les sources de chauffage à rayonnement et/ou sources de chauffage à conduction thermique en cas de rupture de l'élément de chauffage à rayonnement ou de la table de cuisson (6).
  2. Table de cuisson selon la revendication 1, caractérisée en ce que le détecteur de contrôle (4, 5) est formé par une piste conductrice de contrôle qui entoure la source de chauffage à surveiller.
  3. Table de cuisson selon les revendications 1, 2, caractérisée en ce que la source de chauffage à surveiller a une structure en forme de méandres.
  4. Table de cuisson selon les revendications 1, 2, caractérisée en ce que la source de chauffage à surveiller a une forme structurée en pistes circulaires concentriques ou en pistes circulaires en spirale, le - au moins un - détecteur de contrôle (4, 5) s'approchant de la structure respective des sources de chauffage.
  5. Table de cuisson selon la revendication 1, caractérisée en ce que, pour les surfaces chauffantes de géométrie plus étendue et donc plus puissantes, on dispose d'un détecteur de contrôle interne et externe.
  6. Table de cuisson selon les revendications 1, 5, caractérisée en ce que le détecteur de contrôle (4, 5) peut être utilisé pour la reconnaissance de marmites.
  7. Table de cuisson selon la revendication 1, caractérisée en ce que le détecteur de contrôle (4, 5) peut être associé à chaque plaque individuelle d'une table de cuisson et à la table elle-même.
  8. Table de cuisson selon la revendication 1, caractérisée en ce que la plaque est une plaque conductrice de chaleur dont la couche non électroconductrice déterminant la masse est une combinaison au silicium.
  9. Table de cuisson selon les revendications 1, 9, caractérisée en ce que la plaque est une plaque conductrice de chaleur dont la couche non électroconductrice déterminant la masse est en silicium-nitrite.
  10. Table de cuisson selon la revendication 1, caractérisée en ce que la plaque est une plaque conductrice de chaleur dont la couche non électroconductrice déterminant la masse est en silicium-carbite.
EP96710007A 1995-07-20 1996-07-03 Table de cuisson avec un dispositif détecteur pour éléments chauffants des cuisinières. Expired - Lifetime EP0754918B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29511740U 1995-07-20
DE29511740U DE29511740U1 (de) 1995-07-20 1995-07-20 Sensoranordnung für Kochstellenheizelemente

Publications (2)

Publication Number Publication Date
EP0754918A1 EP0754918A1 (fr) 1997-01-22
EP0754918B1 true EP0754918B1 (fr) 2000-09-20

Family

ID=8010784

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96710007A Expired - Lifetime EP0754918B1 (fr) 1995-07-20 1996-07-03 Table de cuisson avec un dispositif détecteur pour éléments chauffants des cuisinières.

Country Status (3)

Country Link
EP (1) EP0754918B1 (fr)
DE (2) DE29511740U1 (fr)
ES (1) ES2151648T3 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19629155C2 (de) * 1996-07-19 2001-06-07 Ggt Ges Fuer Gerontotechnik Mb Verfahren und Vorrichtung zur Sicherheitsabschaltung elektrischer Kochgeräte
DE19820108C2 (de) * 1998-05-06 2001-03-15 Schott Glas Anordnung eines wärmeleitenden keramischen Trägers mit einem Heizkörper als Kochzone in einer Aussparung einer Kochfläche
DE19853388A1 (de) * 1998-11-19 2000-05-25 Ego Elektro Geraetebau Gmbh Elektrische Heizeinrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4286377A (en) * 1978-07-03 1981-09-01 General Electric Company Method of manufacture for a resistance heater and temperature sensor
DE3105065A1 (de) * 1981-02-12 1982-08-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Kochplatte aus glaskeramik
DE3345991A1 (de) * 1983-12-20 1985-06-27 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Anordnung zur leistungsregelung elektrischer kochplatten, vorzugsweise glaskeramik-kochplatten
FR2609533B1 (fr) * 1987-01-13 1990-05-25 Cableco Sa Plan de cuisson electrique a chauffage a induction

Also Published As

Publication number Publication date
EP0754918A1 (fr) 1997-01-22
DE59605907D1 (de) 2000-10-26
DE29511740U1 (de) 1995-10-05
ES2151648T3 (es) 2001-01-01

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