EP1489363B1 - Method for calibration of cooking devices - Google Patents

Method for calibration of cooking devices Download PDF

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Publication number
EP1489363B1
EP1489363B1 EP20030291477 EP03291477A EP1489363B1 EP 1489363 B1 EP1489363 B1 EP 1489363B1 EP 20030291477 EP20030291477 EP 20030291477 EP 03291477 A EP03291477 A EP 03291477A EP 1489363 B1 EP1489363 B1 EP 1489363B1
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EP
European Patent Office
Prior art keywords
heating
temperature
cell
cells
control
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EP20030291477
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German (de)
French (fr)
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EP1489363A1 (en
Inventor
Pascal Gluck
Peter Wiedemann
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Rational AG
Frima SA
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Rational AG
Frima SA
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Priority to EP20030291477 priority Critical patent/EP1489363B1/en
Priority to DE50303198T priority patent/DE50303198D1/en
Publication of EP1489363A1 publication Critical patent/EP1489363A1/en
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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
    • H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator
    • 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
    • F24C15/105—Constructive details concerning the regulation of the temperature
    • 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
    • H05B2213/07—Heating plates with temperature control means

Definitions

  • the invention relates to a method for calibrating, in particular the control unit, of cooking appliances, comprising a plurality of hot plates.
  • Cooking appliances with a variety of hot plates are known.
  • canteen or canteen operation cooking appliances are used with large heating surfaces, which are composed of a variety of individual heating plates.
  • the heating of the entire cooking surface for example when grilling meat, causes juice leaking from the meat to be heated so much that it partially evaporates, while other, substantially solid components of the meat burn on the cooking surface brand this one.
  • part of the energy applied during the cooking process is not used.
  • a cooking appliance with a grill surface is known, which is divided by the arrangement of a plurality of individually controllable via a microprocessor heating elements in a plurality of segments.
  • Target values for temperature, volume, cooking time and the like can be input into the microprocessor via an input unit, in which case a comparison with corresponding, detected actual values takes place in order to be able to specifically control the individual heating elements.
  • a disadvantage of this cooking appliance is that a user inputs undifferentiated desired values for a feed, so that an undesired area-wise vaporization of liquid as well as an area-wise burning-in of solid substances and the like is still always unavoidable.
  • a further disadvantage is that due to the large number of plates errors in the production of such cooking devices are often not completely avoided, making an exact assignment of the heating plates to suitable temperature sensors on the control unit often unsatisfactory. This is then regularly accompanied by insufficient control of the cooking process and as a direct consequence of this an unsatisfactory cooking success.
  • DE 40 22 846 C2 discloses a device for power control and limitation in a heating surface made of glass ceramic with at least one heating zone containing a heating device.
  • This heater may be composed of two or more independently switchable and controllable heating elements, which are associated with a heating zone. Furthermore, glass ceramic temperature measuring resistors which are assigned to each heating element of a heating zone are incorporated in the glass ceramic heating surface.
  • a control and regulating device is operatively connected to the glass ceramic temperature measuring resistors and controls and limits in dependence on the registered signals the power supply to the measuring resistors associated heating elements.
  • the device according to DE 40 22 846 C2 is essentially designed so that the power supplied via a cooking zone to a cooking container is optimally adapted to its quality and size. For example, good quality pots are provided with full rated capacity due to good heat extraction. However, the arrangement according to DE 40 22 846 C2 can not readily be transferred to the use of a plurality of heating plates.
  • DE 197 01 640 A1 discloses a cooking system in which preferably only partial areas of the underside of the hob body are provided with heating resistors in the form of e.g. Platelets are provided. With the aid of temperature limiter sensors distributed over the cooking area, the heating resistors in their respective area should be able to selectively switch off or shut down.
  • the temperature limiter sensors are usually in the form of a sensor layer.
  • DE 197 01 640 A1 is essentially from an electric hotplate transferring to a contact heat, which consists of a non-oxide ceramic, in particular silicon nitride. A very thin Kochplattenktirir is designed so that a very small gap between the hotplate body and cooking vessel is created via a shape ideally adapted to a cooking vessel surface. References to cooking appliances containing a large number of heating plates, however, are not disclosed in DE 197 01 640 A1.
  • DE 196 46 959 C2 discloses the use of a thermocouple in a glass ceramic hob, wherein this sensor is mounted in the region of the burner body of a gas burner and is connected directly or indirectly thermally conductive to the burner body.
  • the thermocouple is provided here only for qualitative indication of the respective temperature condition of the cooking zone.
  • the thermocouple is in the device according to DE 196 46 959 C2 otherwise not mounted so that it could be used for an accurate temperature measurement.
  • WO 97/19298 discloses a cooking surface comprising energy sources and monitoring devices for the thermal stress on the surface, which control the energy supply during use and turn off the energy in the event of no load, the number of energy sources being large , with a minimum of five sources, preferably a minimum of twenty sources, each energy source being energized only if its thermal load is said to be sufficient.
  • DE 198 21 439 A1 describes a sensor-controlled cooking unit, consisting of a hob, a cooking appliance and a sensor unit that measures the temperature of the food in the cooking appliance indirectly, which sensor unit in a special calibration mode when boiling water, the time course of the temperature registered and the control unit detects a predetermined constancy of the temperature profile as reaching the boiling point of the water and performs a self-calibration, wherein the control unit detects the achievement of a certain calibration constancy of the temperature profile as the end of a Vorkalibrierphase and the control unit keeps a heating element turned off during a subsequent Kalibriermeßphase, in the the sensor unit measures the temperature for self-calibration of the cooking unit.
  • the invention had the object of providing a method available that can be ensured in a simple and straightforward way that even with cooking appliances with very large cooking surface, comprising a variety of individual hot plates, a proper operation at each restart can.
  • calibration is to be understood as a guarantee to guarantee in a simple and straightforward way a proper operation of a cooking appliance at each restart.
  • steps a) to d) are repeated, wherein instead of an already assigned first heating cell, a not yet assigned second heating cell is selected.
  • all heating cells or all but one heating cell are subjected to process steps a) to d).
  • the object underlying the method according to the invention is further achieved by a method for calibrating, in particular the control unit, a cooking appliance comprising a plurality of heating cells, in particular heating plates, a control and regulating unit, and at least one temperature measuring device, in particular a thermocouple, per Heating cell, each heating cell via the control unit specifically identifiable, beicalbar and / or is controllable, wherein all the heating cells or all but one heating cell are heated simultaneously or almost simultaneously, each with an individual, distinguishable Aufsort, wherein the heating behavior of each heating cell is detected and / or stored at least one temperature measuring device, wherein for each heating cell predetermined heating pattern is compared with the detected by the temperature measuring devices heating behavior and wherein heating cells and temperature measuring devices, which correspond in the underlying heating pattern and the actual heating behavior, are assigned to each other, and wherein this assignment is optionally stored and / or via the control and / or regulating unit is available.
  • a method for calibrating, in particular the control unit, a cooking appliance comprising a plurality of
  • steps a) to d), in particular until all the heating cells at least one temperature measuring device, in particular at least one thermocouple are assigned, are repeated, instead of an already assigned first temperature measuring device not yet assigned second temperature measuring device is selected and the already assigned heating cell (s) will no longer be heated.
  • the object underlying the method according to the invention is achieved by a method for calibrating, in particular the control and regulating unit, a cooking appliance, comprising a plurality of heating cells and a control and regulating unit, each Heater cell at least one temperature measuring device, in particular at least one thermocouple, and wherein each temperature measuring device is identifiable and / or selectable via a control and regulating unit, all heating cells or all but one heating cell are heated simultaneously or almost simultaneously for an individual, distinguishable heating pattern, wherein the heating behavior of the heating cells is registered and / or stored via the temperature measuring devices associated therewith, wherein the heating behavior detected by the temperature measuring devices is matched with the heating patterns stored for each heating cell, wherein temperature measuring devices and heating cells whose heating patterns and heating behavior correspond are associated with each other and wherein If necessary, this assignment is stored, and / or can be retrieved via the control and / or regulating unit.
  • thermocouples for the cooking appliance used in the method according to the invention, e.g. Measuring resistors, IR sensors and bimetals and in particular thermocouples suitable.
  • the cooking appliance may have an at least partial thermal insulation of the individual heating cells from one another.
  • the cooking appliance can have at least one heating element, in particular one measurable heating resistor, per heating cell, one weight sensor per heating cell and / or one optical detection unit for each heating cell.
  • control and / or regulating device in operative connection with the temperature measuring devices, the heating elements, the weight sensors, the optical detection unit (s), at least one Garreasler, which is at least partially inserted into a food, a Storage unit, an input unit, a display unit and / or an output unit is.
  • Suitable cooking appliances are also characterized in particular by the fact that at least one temperature measuring device, in particular a thermocouple, in particular centrally, is arranged or can be arranged on or in the heating cell, in particular in an omission of the heating cell.
  • at least one temperature measuring device in particular a thermocouple, in particular centrally, is arranged or can be arranged on or in the heating cell, in particular in an omission of the heating cell.
  • At least one heating cell comprises a plurality of heating elements, in particular arranged in rows and columns.
  • the heating elements are heating resistors which can be connected or connected to each other partially or completely via a series and / or parallel connection.
  • At least one, in particular each, heating cell on the control unit is identifiable, selectable and / or controllable and / or that at least one, in particular each, temperature measuring device, identifiable via the control unit and / or is selectable and / or at least one, in particular each, thermocouple of a particular heating cell can be assigned.
  • the invention was based on the surprising finding that even large-scale cooking appliances, comprising a large number of individual heating plates, can be operated in continuous operation in a reliable and energy-efficient manner.
  • no special care must be taken to ensure that mutually associated hot plates and thermocouples are combined in the correct manner in the control and / or regulating device.
  • the cooking appliance 1 comprises a food support 10 with a cooking surface 100, which in turn is divided into individual heating cells 101 to 114.
  • the subdivision of the cooking surface 100 is achieved in that each heating cell 101 to 114 comprises at least one heating element 2 and can be heated via this by means of thermal contact.
  • the heating cells 101 to 114 may also have, for example, a weight sensor 3 and an optical detection unit 4 and be equipped with a cooking process sensor 5.
  • FIG. 2 shows the perspective view of a heating cell, for example, the heating cell 101.
  • the heating cell 101 is composed of a plurality of heating elements 201 to 220, in rows and columns are arranged side by side and formed as interconnected individual heating resistors.
  • the heating cell 101 is fastened to the food support 10 via fastening means, eg screws 250 to 253.
  • the heating cells 101 to 114 and the heating elements 2 of all the heating cells 101 to 114 are or are connected to a control and / or regulating unit, not shown.
  • This control and / or regulating unit is in turn connected to a memory unit (not shown) of an input unit (not shown) of an output unit (not shown).
  • thermocouple 20 protrudes in order to accommodate the temperature of the heating elements 201 to 220 of the respective heating cell which are approximately at the same height.
  • the heating cells 101 to 114 and the heating elements 201 to 220 of the respective heating cells 101 to 114 are each connected via lines to a control and / or regulating unit. Furthermore, the thermocouples 20 are directly or indirectly in communication with the control and / or regulating unit. When the cooking appliance is put into operation, it is first ensured which heating cell is detected via which thermocouple and whether all heating cells and thermocouples function properly. For this purpose, it is assumed according to an embodiment of the method according to the invention that each heating cell 101 to 114 via the control and / or regulating unit individually and selectively controlled, but from the outset not a clear assignment of heating cells and thermocouples is given.
  • thermocouple By controlling and heating each heating cell individually and successively, for example programmatically, it is easy to determine via which thermocouple the heating is registered. In this way, a clear assignment of heating cell to thermocouple when commissioning the cooking device can be produced. Regularly, it is sufficient for an unambiguous assignment if all but one heating cell are activated, if one thermocouple is provided per heating cell. Even with cooking appliances with a very large number of separate heating cells, it is thus possible in a straightforward way to obtain a clear association between mutually belonging heating plates and thermocouples.
  • the reliability of the assignment can be increased, for example, by setting a characteristic heating program for each heating cell via the input unit and pay attention that over the assigned. Thermocouple a corresponding heating pattern is detected.
  • characteristic heating programs for each heating cell it is possible to dispense with heating each heating cell successively. Rather, all the heating cells can then be heated at the same time or almost simultaneously, whereby the calibration process can be greatly reduced during commissioning again.

Description

Die Erfindung betrifft ein Verfahren zur Kalibrierung, insbesondere der Steuer- und Regeleinheit, von Gargeräten, umfassend eine Vielzahl an Heizplatten.The invention relates to a method for calibrating, in particular the control unit, of cooking appliances, comprising a plurality of hot plates.

Gargeräte mit einer Vielzahl an Heizplatten sind bekannt. Insbesondere im Restaurant-, Großküchen- oder Kantinenbetrieb kommen Gargeräte mit großen Heizflächen zum Einsatz, die sich aus einer Vielzahl an individuellen Heizplatten zusammensetzen. Die Beheizung der gesamten Garfläche führt beispielsweise beim Grillen von Fleisch dazu, dass Saft, der aus dem Fleisch austritt, so stark erhitzt wird, dass er zum Teil verdampft, während andere, im wesentlichen feste Bestandteile des Fleisches an der Garfläche anbrennen bzw. sich in diese einbrennen. Ferner wird, da zumeist nicht die gesamte beheizte Garfläche mit Gargut belegt ist, ein Teil der aufgebrachten Energie während des Garprozesses nicht genutzt.Cooking appliances with a variety of hot plates are known. In particular, in the restaurant, canteen or canteen operation cooking appliances are used with large heating surfaces, which are composed of a variety of individual heating plates. The heating of the entire cooking surface, for example when grilling meat, causes juice leaking from the meat to be heated so much that it partially evaporates, while other, substantially solid components of the meat burn on the cooking surface brand this one. Furthermore, since most of the time the entire heated cooking surface is not covered with food, part of the energy applied during the cooking process is not used.

Aus der WO 85/05528 ist ein Gargerät mit einer Grillfläche bekannt, welche durch die Anordnung einer Vielzahl von individuell über einen Mikroprozessor ansteuerbaren Heizelementen in eine Vielzahl von Segmenten unterteilt ist. Über eine Eingabeeinheit können Soll-Werte für Temperatur, Volumen, Garzeit und dergleichen in den Mikroprozessor eingegeben werden, in dem dann ein Vergleich mit entsprechenden, erfassten Ist-Werten stattfindet, um die einzelnen Heizelemente gezielt ansteuern zu können. Nachteilig bei diesem Gargerät ist jedoch, dass ein Benutzer Soll-Werte für eine Beschickung undifferenziert eingibt, so dass ein unerwünschtes bereichsweises Verdampfen von Flüssigkeit sowie ein bereichsweises Einbrennen von festen Substanzen und dergleichen noch stets unvermeidbar ist. Nachteilig ist weiterhin, dass bedingt durch die Vielzahl der Platten Fehler bei der Herstellung solcher Gargeräte häufig nicht vollständig zu vermeiden sind, wodurch eine exakte Zuordnung der Heizplatten zu geeigneten Temperatursensoren über die Steuer- und Regeleinheit häufig nicht zufriedenstellend gelingt. Hiermit geht dann regelmäßig eine unzureichende Kontrolle des Garvorgangs und als direkte Folge hiervon ein unbefriedigender Garerfolg einher.From WO 85/05528 a cooking appliance with a grill surface is known, which is divided by the arrangement of a plurality of individually controllable via a microprocessor heating elements in a plurality of segments. Target values for temperature, volume, cooking time and the like can be input into the microprocessor via an input unit, in which case a comparison with corresponding, detected actual values takes place in order to be able to specifically control the individual heating elements. A disadvantage of this cooking appliance, however, is that a user inputs undifferentiated desired values for a feed, so that an undesired area-wise vaporization of liquid as well as an area-wise burning-in of solid substances and the like is still always unavoidable. A further disadvantage is that due to the large number of plates errors in the production of such cooking devices are often not completely avoided, making an exact assignment of the heating plates to suitable temperature sensors on the control unit often unsatisfactory. This is then regularly accompanied by insufficient control of the cooking process and as a direct consequence of this an unsatisfactory cooking success.

Die DE 40 22 846 C2 offenbart eine Vorrichtung zur Leistungssteuerung und begrenzung bei einer Heizfläche aus Glaskeramik mit wenigstens einer Heizzone enthaltend eine Heizeinrichtung. Diese Heizeinrichtung kann sich aus zwei oder mehreren unabhängig voneinander schalt- und steuerbaren Heizelementen, die einer Heizzone zugeordnet sind, zusammensetzen. Des weiteren sind in die Glaskeramikheizfläche Glaskeramiktemperaturmesswiderstände eingearbeitet, die jedem Heizelement einer Heizzone zugeordnet sind. Eine Steuer- und Regeleinrichtung steht in Wirkverbindung zu den Glaskeramiktemperaturmesswiderständen und steuert und begrenzt in Abhängigkeit von den registrierten Signalen die Leistungszufuhr zu den den Meßwiderständen zugeordneten Heizelementen. Die Vorrichtung gemäß DE 40 22 846 C2 ist im wesentlichen darauf ausgelegt, dass die über eine Kochzone einem Garbehälter zugeführte Leistung optimal an dessen Qualität und Größe angepaßt wird. Beispielsweise wird Töpfen mit guter Qualität aufgrund des guten Wärmeentzugs die volle Nennleistung zur Verfügung gestellt. Allerdings läßt sich die Anordnung gemäß der DE 40 22 846 C2 nicht ohne weiteres auf die Verwendung einer Vielzahl an Heizplatten übertragen.DE 40 22 846 C2 discloses a device for power control and limitation in a heating surface made of glass ceramic with at least one heating zone containing a heating device. This heater may be composed of two or more independently switchable and controllable heating elements, which are associated with a heating zone. Furthermore, glass ceramic temperature measuring resistors which are assigned to each heating element of a heating zone are incorporated in the glass ceramic heating surface. A control and regulating device is operatively connected to the glass ceramic temperature measuring resistors and controls and limits in dependence on the registered signals the power supply to the measuring resistors associated heating elements. The device according to DE 40 22 846 C2 is essentially designed so that the power supplied via a cooking zone to a cooking container is optimally adapted to its quality and size. For example, good quality pots are provided with full rated capacity due to good heat extraction. However, the arrangement according to DE 40 22 846 C2 can not readily be transferred to the use of a plurality of heating plates.

Der DE 197 01 640 A1 ist ein Kochsystem zu entnehmen, bei dem vorzugsweise nur Teilbereiche der Unterseite des Kochplattenkörpers mit Heizwiderständen in Form von z.B. Plättchen versehen sind. Mit Hilfe von über den Kochbereich verteilten Temperaturbegrenzer-Sensoren sollen sich die Heizwiderstände in ihrem jeweiligen Bereich selektiv abschalten bzw. herunterregeln lassen. Die Temperaturbegrenzer-Sensoren liegen dabei in der Regel in Form einer Sensorschicht vor. Die DE 197 01 640 A1 stellt dabei im wesentlichen ab auf eine Kontaktwärme übertragende Elektrokochplatte, die aus einer nicht-oxydischen Keramik, insbesondere Siliciumnitrid, besteht. Ein sehr dünner Kochplattenktirper ist dabei derart gestaltet, dass über eine in ihrer Form ideal an ein Kochgefäß angepasste Oberfläche ein sehr geringer Spalt zwischen Kochplattenkörper und Kochgefäß geschaffen wird. Hinweise auf Gargeräte enthaltend eine Vielzahl an Heizplatten gehen aus der DE 197 01 640 A1 jedoch nicht hervor.DE 197 01 640 A1 discloses a cooking system in which preferably only partial areas of the underside of the hob body are provided with heating resistors in the form of e.g. Platelets are provided. With the aid of temperature limiter sensors distributed over the cooking area, the heating resistors in their respective area should be able to selectively switch off or shut down. The temperature limiter sensors are usually in the form of a sensor layer. DE 197 01 640 A1 is essentially from an electric hotplate transferring to a contact heat, which consists of a non-oxide ceramic, in particular silicon nitride. A very thin Kochplattenktirir is designed so that a very small gap between the hotplate body and cooking vessel is created via a shape ideally adapted to a cooking vessel surface. References to cooking appliances containing a large number of heating plates, however, are not disclosed in DE 197 01 640 A1.

Die DE 196 46 959 C2 offenbart die Verwendung eines Thermoelements in einem Glaskeramikkochfeld, wobei dieser Sensor im Bereich des Brennerkörpers eines Gasbrenners angebracht und mit dem Brennerkörper direkt oder indirekt wärmeleitend verbunden ist. Das Thermoelement ist hierbei nur zur qualitativen Anzeige des jeweiligen Temperaturzustandes der Kochzone vorgesehen. Das Thermoelement ist in der Vorrichtung gemäß DE 196 46 959 C2 im übrigen auch nicht derart angebracht, dass es zu einer exakten Temperaturmessung herangezogen werden könnte.DE 196 46 959 C2 discloses the use of a thermocouple in a glass ceramic hob, wherein this sensor is mounted in the region of the burner body of a gas burner and is connected directly or indirectly thermally conductive to the burner body. The thermocouple is provided here only for qualitative indication of the respective temperature condition of the cooking zone. The thermocouple is in the device according to DE 196 46 959 C2 otherwise not mounted so that it could be used for an accurate temperature measurement.

Aus der DE 40 07 680 A1 ist eines Heizplatte eines Glaskeramik-Elektroherdes mit mehreren in einer Fläche nebeneinander angeordneten Kochfeldem bekannt, die über eine Steuerung mit Sensoren gesondert einschaltbar sind, wobei bei eng nebeneinander liegenden Kochfeldem die Heizleistung der Kochfelder unterschiedlich eingestellt ist.From DE 40 07 680 A1 discloses a hotplate of a glass-ceramic electric cooker with several in a surface juxtaposed hob is known, which are separately switched on via a controller with sensors, with close cooktop the heating power of the hobs is set differently.

Die WO 97/19298 offenbart eine Kochfläche, welche Energiequellen und Überwachungsvorrichtungen für die thermische Belastung auf der Oberfläche umfaßt, welche die Energieversorgung während der Verwendung kontrollieren und die Energie in dem Falle abschalten, wenn keine Belastung vorhanden ist, wobei die Anzahl an Energiequellen groß ist, mit einem Minimum von fünf Quellen, bevorzugt einem Minimum von zwanzig Quellen, wobei jede Energiequelle lediglich mit Energie beaufschlagt wird, wenn ihre thermische Belastung als ausreichend bezeichnet wird.WO 97/19298 discloses a cooking surface comprising energy sources and monitoring devices for the thermal stress on the surface, which control the energy supply during use and turn off the energy in the event of no load, the number of energy sources being large , with a minimum of five sources, preferably a minimum of twenty sources, each energy source being energized only if its thermal load is said to be sufficient.

Schließlich beschreibt die DE 198 21 439 A1 eine Sensor-gesteuerte Garungseinheit, bestehend aus einem Kochfeld, einem Gargerät und einer Sensoreinheit, die die Temperatur des Garguts im Gargerät mittelbar mißt, welche Sensoreinheit in einem speziellen Kalibriermodus beim Kochen von Wasser den zeitlichen Verlauf der Temperatur registriert und die Steuereinheit eine festgelegte Konstanz des Temperaturverlaufs als Erreichen des Siedepunktes des Wassers detektiert und eine Selbstkalibrierung durchführt, wobei die Steuereinheit das Erreichen einer bestimmten Kalibrierkonstanz des Temperaturverlaufs als Ende einer Vorkalibrierphase detektiert und die Steuereinheit ein Heizelement während einer darauffolgenden Kalibriermeßphase abgeschaltet hält, in der die Sensoreinheit die Temperatur zur Selbstkalibrierung der Garungseinheit mißt.Finally, DE 198 21 439 A1 describes a sensor-controlled cooking unit, consisting of a hob, a cooking appliance and a sensor unit that measures the temperature of the food in the cooking appliance indirectly, which sensor unit in a special calibration mode when boiling water, the time course of the temperature registered and the control unit detects a predetermined constancy of the temperature profile as reaching the boiling point of the water and performs a self-calibration, wherein the control unit detects the achievement of a certain calibration constancy of the temperature profile as the end of a Vorkalibrierphase and the control unit keeps a heating element turned off during a subsequent Kalibriermeßphase, in the the sensor unit measures the temperature for self-calibration of the cooking unit.

Der Erfindung lag die Aufgabe zugrunde, ein Verfahren zur Verfügung zu stellen, mit dem auf einfache und unkomplizierte Weise gewährleistet werden kann, dass auch bei Gargeräten mit sehr großer Garfläche, umfassend eine Vielzahl an einzelnen Heizplatten, eine ordnungsgemäße Funktionsweise bei jeder erneuten Inbetriebnahme garantiert werden kann.The invention had the object of providing a method available that can be ensured in a simple and straightforward way that even with cooking appliances with very large cooking surface, comprising a variety of individual hot plates, a proper operation at each restart can.

Die Aufgabe wird gelöst durch ein Verfahren zur Kalibrierung, insbesondere einer Steuer-und Regeleinheit, eines Gargeräts, das eine Garfläche eines Gargutträgers, die auf einer Vielzahl von Heizzellen, insbesondere Heizplatten, bereitgestellt ist, aufweist, wobei jede Heizzelle zumindest ein Heizelement aufweist, die Heizzelle und/oder das Heizelement mit einer Steuer- und/oder Regeleinrichtung verbunden ist bzw. sind und mindestens eine Temperaturmeßvorrichtung, insbesondere ein Thermoelement pro Heizzelle vorgesehen ist, wobei mindestens eine, insbesondere jede, Heizzelle über die Steuer- und Regeleinheit gezielt identifizierbar, anwählbar und/oder ansteuerbar ist und wobei jede Heizzelle mindestens eine Temperaturmessvorrichtung, insbesondere ein Thermoelement, aufweist, das mit der Steuer-und/oder Regeleinheit in Wirkverbindung steht, umfassend die Schritte

  • a) des Auswählens einer ersten Heizzelle,
  • b) des Aufheizens der ersten Heizzelle, insbesondere nach einem individuellen ersten Aufheizschema,
  • c) des Registrierens derjenigen Temperaturmessvorrichtung(en), welche einen Temperaturanstieg detektiert bzw. detektieren, insbesondere korrespondierend mit dem ersten Aufheizschema,
  • d) der Zuordnung der ersten Heizzelle zu der/den ersten Temperaturmessvorrichtung(en) und gegebenenfalls Abspeichern dieser Zuordnung.
The object is achieved by a method for calibrating, in particular a control and regulating unit, a cooking appliance having a cooking surface of a food support, which is provided on a plurality of heating cells, in particular heating plates, wherein each heating cell has at least one heating element Heating cell and / or the heating element is connected to a control and / or regulating device or are and at least one temperature measuring device, in particular a thermocouple per heating cell is provided, wherein at least one, in particular each, heating cell can be specifically identified, selected and / or controlled via the control and regulation unit and wherein each heating cell has at least one temperature measuring device, in particular a thermocouple, which is in operative connection with the control and / or regulating unit, comprising the steps
  • a) selecting a first heating cell,
  • b) the heating of the first heating cell, in particular according to an individual first heating scheme,
  • c) registering the temperature measuring device (s) which detect a temperature rise or detect, in particular corresponding to the first heating scheme,
  • d) the assignment of the first heating cell to the / the first temperature measuring device (s) and optionally storing this assignment.

Unter dem Begriff "Kalibrierung", wie er in der vorliegenden Anmeldung verstanden werden soll, ist eine Gewährleistung zu verstehen, auf einfache und unkomplizierte Weise eine ordnungsgemäße Funktionsweise eines Gargeräts bei jeder erneuten Inbetriebnahme zu garantieren.The term "calibration", as it should be understood in the present application, is to be understood as a guarantee to guarantee in a simple and straightforward way a proper operation of a cooking appliance at each restart.

Dabei kann in einer weiteren Ausführungsform vorgesehen sein, dass die Schritte a) bis d) wiederholt werden, wobei anstelle einer bereits zugeordneten ersten Heizzelle eine noch nicht zugeordnete zweite Heizzelle ausgewählt wird.In this case, it can be provided in a further embodiment that the steps a) to d) are repeated, wherein instead of an already assigned first heating cell, a not yet assigned second heating cell is selected.

Zweckmäßigerweise werden in einer bevorzugten Ausgestaltung sämtliche Heizzellen oder alle bis auf eine Heizzelle den Verfahrensschritten a) bis d) unterzogen.Conveniently, in a preferred embodiment, all heating cells or all but one heating cell are subjected to process steps a) to d).

Als besonders effizient und insbesondere zeitsparend hat sich erwiesen, wenn die einzelnen Heizzellen des Heizgerätes zeitlich versetzt und in gleichbleibenden und/oder voneinander unterschiedlichen Zeitintervallen aufgeheizt werden.It has proven to be particularly efficient and time-saving, in particular, if the individual heating cells of the heating device are staggered in time and heated at constant and / or different time intervals.

Die dem erfindungsgemäßen Verfahren zugrundeliegende Aufgabe wird ferner gelöst durch ein Verfahren zur Kalibrierung, insbesondere der Steuer- und Regeleinheit, eines Gargeräts, umfassend eine Vielzahl an Heizzellen, insbesondere Heizplatten, eine Steuer- und Regeleinheit, und mindestens eine Temperaturmessvorrichtung, insbesondere ein Thermoelement, pro Heizzelle, wobei jede Heizzelle über die Steuer- und Regeleinheit gezielt identifizierbar, anwälbar und/oder ansteuerbar ist, wobei sämtliche Heizzellen oder alle bis auf eine Heizzelle gleichzeitig oder nahezu gleichzeitig mit jeweils einem individuellen, unterscheidbaren Aufheizmuster aufgeheizt werden, wobei das Aufheizverhalten jeder Heizzelle über mindestens eine Temperaturmessvorrichtung erfasst und/oder gespeichert wird, wobei das für jede Heizzelle vorgegebene Aufheizmuster abgeglichen wird mit dem über die Temperaturmessvorrichtungen erfassten Aufheizverhalten und wobei Heizzellen und Temperaturmessvorrichtungen, die in dem zugrundeliegenden Aufheizmuster und dem tatsächlichen Aufheizverhalten korrespondieren, einander zugeordnet werden, und wobei diese Zuordnung gegebenenfalls gespeichert wird und/oder über die Steuer- und/oder Regeleinheit abrufbar ist.The object underlying the method according to the invention is further achieved by a method for calibrating, in particular the control unit, a cooking appliance comprising a plurality of heating cells, in particular heating plates, a control and regulating unit, and at least one temperature measuring device, in particular a thermocouple, per Heating cell, each heating cell via the control unit specifically identifiable, bewälbar and / or is controllable, wherein all the heating cells or all but one heating cell are heated simultaneously or almost simultaneously, each with an individual, distinguishable Aufheizmuster, wherein the heating behavior of each heating cell is detected and / or stored at least one temperature measuring device, wherein for each heating cell predetermined heating pattern is compared with the detected by the temperature measuring devices heating behavior and wherein heating cells and temperature measuring devices, which correspond in the underlying heating pattern and the actual heating behavior, are assigned to each other, and wherein this assignment is optionally stored and / or via the control and / or regulating unit is available.

Außerdem wird die dem erfindungsgemäßen Verfahren zugrundeliegende Aufgabe gelöst durch ein Verfahren zur Kalibrierung, insbesondere der Steuer- und Regeleinheit, von Gargeräten, umfassend eine Vielzahl an Heizzellen, insbesondere Heizplatten, und eine Steuer- und Regeleinheit, wobei jede Heizzelle mindestens eine Temperaturmessvorrichtung, insbesondere mindestens ein Thermoelement, aufweist und wobei jede Temperaturmessvorrichtung über die Steuer- und Regeleinheit identifizierbar und anwählbar ist, umfassend die Schritte

  • a) des Auswählens einer ersten Temperaturmessvorrichtung,
  • b) des sukzessiven Aufheizens der Heizzellen des Gargeräts, insbesondere nach einem ersten Aufheizschema,
  • c) des Registrierens eines Temperaturanstiegs über die erste Temperaturmessvorrichtung,
  • d) der Zuordnung der ersten Temperaturmessvorrichtung zu der Heizzelle, für die ein Temperaturanstieg, insbesondere korrespondierend zu dem ersten Aufheizschema, registriert wird und gegebenenfalls Abspeichern dieser Zuordnung.
In addition, the object underlying the method according to the invention is achieved by a method for calibration, in particular the control unit, of cooking appliances, comprising a plurality of heating cells, in particular hot plates, and a control and regulating unit, each heating cell at least one temperature measuring device, in particular at least a thermocouple, and wherein each temperature measuring device is identifiable and selectable via the control unit, comprising the steps
  • a) selecting a first temperature measuring device,
  • b) the successive heating of the heating cells of the cooking appliance, in particular according to a first heating scheme,
  • c) registering a temperature rise over the first temperature measuring device,
  • d) the assignment of the first temperature measuring device to the heating cell, for which a temperature increase, in particular corresponding to the first heating scheme, is registered and, if appropriate, storing this assignment.

Dabei kann vorgesehen sein, dass die Schritte a) bis d), insbesondere bis sämtliche Heizzellen mindestens einer Temperaturmessvorrichtung, insbesondere mindestens einem Thermoelement, zugeordnet sind, wiederholt werden, wobei anstelle einer bereits zugeordneten ersten Temperaturmessvorrichtung eine noch nicht zugeordnete zweite Temperaturmessvorrichtung ausgewählt wird und wobei die bereits zugeordnete(n) Heizzelle(n) nicht mehr aufgeheizt wird bzw. werden.It can be provided that steps a) to d), in particular until all the heating cells at least one temperature measuring device, in particular at least one thermocouple are assigned, are repeated, instead of an already assigned first temperature measuring device not yet assigned second temperature measuring device is selected and the already assigned heating cell (s) will no longer be heated.

Schließlich wird die dem erfindungsgemäßen Verfahren zugrundeliegende Aufgabe gelöst durch ein Verfahren zur Kalibrierung, insbesondere der Steuer- und Regeleinheit, eines Gargeräts, umfassend eine Vielzahl an Heizzellen und eine Steuer- und Regeleinheit, wobei jede Heizzelle mindestens eine Temperaturmessvorrichtung, insbesondere mindestens ein Thermoelement, aufweist und wobei jede Temperaturmessvorrichtung über eine Steuer- und Regeleinheit identifizierbar und/oder anwählbar ist, wobei sämtliche Heizzellen oder alle bis auf eine Heizzelle gleichzeitig oder nahezu gleichzeitig nach einem individuellen, unterscheidbaren Aufheizmuster aufgeheizt werden, wobei das Aufheizverhalten der Heizzellen über die diesen zugeordneten Temperaturmessvorrichtungen registriert und/oder gespeichert wird, wobei das über die Temperaturmessvorrichtungen detektierte Aufheizverhalten mit den für jede Heizzelle hinterlegten Aufheizmustem abgeglichen wird, wobei Temperaturmessvorrichtungen und Heizzellen, deren Aufheizmuster und Aufheizverhalten korrespondieren, einander zugeordnet werden und wobei diese Zuordnung gegebenenfalls, abgespeichert wird, und/oder über die Steuer- und oder Regeleinheit abrufbar ist.Finally, the object underlying the method according to the invention is achieved by a method for calibrating, in particular the control and regulating unit, a cooking appliance, comprising a plurality of heating cells and a control and regulating unit, each Heater cell at least one temperature measuring device, in particular at least one thermocouple, and wherein each temperature measuring device is identifiable and / or selectable via a control and regulating unit, all heating cells or all but one heating cell are heated simultaneously or almost simultaneously for an individual, distinguishable heating pattern, wherein the heating behavior of the heating cells is registered and / or stored via the temperature measuring devices associated therewith, wherein the heating behavior detected by the temperature measuring devices is matched with the heating patterns stored for each heating cell, wherein temperature measuring devices and heating cells whose heating patterns and heating behavior correspond are associated with each other and wherein If necessary, this assignment is stored, and / or can be retrieved via the control and / or regulating unit.

Als Temperaturmessvorrichtungen sind für das im erfindungsgemäßen Verfahren eingesetzte Gargerät z.B. Messwiderstände, IR-Sensoren und Bimetalle sowie insbesondere Thermoelemente geeignet.As temperature measuring devices, for the cooking appliance used in the method according to the invention, e.g. Measuring resistors, IR sensors and bimetals and in particular thermocouples suitable.

Dabei kann das Gargerät in einer Ausführungsform über eine zumindest teilweise thermische Isolierung der einzelnen Heizzellen voneinander verfügen.In one embodiment, the cooking appliance may have an at least partial thermal insulation of the individual heating cells from one another.

Ferner kann das Gargerät zumindest ein Heizelement, insbesondere einen meßbaren Heizwiderstand, pro Heizzelle, einen Gewichtssensor pro Heizzelle und /oder eine optische Detektionseinheit für jede Heizzelle aufweisen.Furthermore, the cooking appliance can have at least one heating element, in particular one measurable heating resistor, per heating cell, one weight sensor per heating cell and / or one optical detection unit for each heating cell.

Des weiteren kann vorgesehen sein, dass die Steuer- und/oder Regeleinrichtung in Wirkverbindung mit den Temperaturmessvorrichtungen, den Heizelementen, den Gewichtssensoren, der bzw. den optischen Detektionseinheit(en), zumindest einem Garprozessfühler, der zumindest teilweise in ein Gargut einsteckbar ist, einer Speichereinheit, einer Eingabeeinheit, einer Anzeigeinheit und/oder einer Ausgabeeinheit steht.Furthermore, it can be provided that the control and / or regulating device in operative connection with the temperature measuring devices, the heating elements, the weight sensors, the optical detection unit (s), at least one Garprozessfühler, which is at least partially inserted into a food, a Storage unit, an input unit, a display unit and / or an output unit is.

Geeignete Gargeräte zeichnen sich insbesondere auch dadurch aus, dass mindestens eine Temperaturmessvorrichtung, insbesondere ein Thermoelement, insbesondere zentral, an oder in der Heizzelle angeordnet oder anordbar ist, insbesondere in einer Auslassung der Heizzelle.Suitable cooking appliances are also characterized in particular by the fact that at least one temperature measuring device, in particular a thermocouple, in particular centrally, is arranged or can be arranged on or in the heating cell, in particular in an omission of the heating cell.

Dabei kann beispielsweise vorgesehen sein, dass mindestens eine Heizzelle eine Vielzahl an Heizelementen, insbesondere angeordnet in Zeilen und Spalten, umfasst.It can be provided, for example, that at least one heating cell comprises a plurality of heating elements, in particular arranged in rows and columns.

Gemäß einer besonders geeigneten Ausführungsform stellen die Heizelemente Heizwiderstände dar, die partiell oder vollständig über eine Reihen- und/oder Parallelschaltung miteinander verbindbar bzw. verbunden sind.According to a particularly suitable embodiment, the heating elements are heating resistors which can be connected or connected to each other partially or completely via a series and / or parallel connection.

Hierbei hat sich als besonders zweckmäßig erwiesen, wenn mindestens eine, insbesondere jede, Heizzelle über die Steuer- und Regeleinheit identifizierbar, anwählbar und/oder steuerbar ist und/oder dass mindestens eine, insbesondere jede, Temperaturmessvorrichtung, über die Steuer- und Regeleinheit identifizierbar und/oder anwählbar ist und/oder wobei mindestens ein, insbesondere jedes, Thermoelement einer bestimmten Heizzelle zuordbar ist.It has proved to be particularly useful if at least one, in particular each, heating cell on the control unit is identifiable, selectable and / or controllable and / or that at least one, in particular each, temperature measuring device, identifiable via the control unit and / or is selectable and / or at least one, in particular each, thermocouple of a particular heating cell can be assigned.

Der Erfindung lag die überraschende Erkenntnis zugrunde, dass sich auch großflächige Gargeräte, umfassend eine Vielzahl an einzelnen Heizplatten, im Dauerbetrieb auf zuverlässige und energieeffiziente Weise betreiben lassen. Von besonderem Vorteil ist dabei auch, dass bei der Herstellung der erfindungsgemäßen Gargeräte keine besondere Sorgfalt eingehalten werden muss, um sicherzustellen, dass einander zugeordnete Heizplatten und Thermoelemente auf korrekte Art und Weise in der Steuer- und/oder Regeleinrichtung zusammengeführt werden.The invention was based on the surprising finding that even large-scale cooking appliances, comprising a large number of individual heating plates, can be operated in continuous operation in a reliable and energy-efficient manner. Of particular advantage is also that in the production of cooking appliances according to the invention no special care must be taken to ensure that mutually associated hot plates and thermocouples are combined in the correct manner in the control and / or regulating device.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachstehenden Beschreibung, in der eine erfindungsgemäße Ausführungsform beispielhaft anhand zweier Abbildungen erläutert wird. Dabei zeigen

Figur 1
eine perspektivische Ansicht einer Garfläche eines Gargeräts; und
Figur 2
eine perspektivische Ansicht einer Heizzelle.
Further features and advantages of the invention will become apparent from the following description in which an embodiment of the invention is exemplified with reference to two figures. Show
FIG. 1
a perspective view of a cooking surface of a cooking appliance; and
FIG. 2
a perspective view of a heating cell.

Wie der Figur zu entnehmen ist, umfasst das Gargerät 1 einen Gargutträger 10 mit einer Garfläche 100, de ihrerseits in einzelne Heizzellen 101 bis 114 unterteilt ist. Die Unterteilung der Garfläche 100 wird dadurch erreicht, dass jede Heizzelle 101 bis 114 mindestens ein Heizelement 2 umfasst und über dieses mittels thermischen Kontakts erwärmbar ist. Die Heizzellen 101 bis 114 können neben einem Thermoelement beispielsweise auch über einen Gewichtssensor 3 und eine optische Detektionseinheit 4 verfügen sowie mit einem Garprozessfühler 5 ausgestattet sein.As the figure can be seen, the cooking appliance 1 comprises a food support 10 with a cooking surface 100, which in turn is divided into individual heating cells 101 to 114. The subdivision of the cooking surface 100 is achieved in that each heating cell 101 to 114 comprises at least one heating element 2 and can be heated via this by means of thermal contact. In addition to a thermocouple, the heating cells 101 to 114 may also have, for example, a weight sensor 3 and an optical detection unit 4 and be equipped with a cooking process sensor 5.

Figur 2 zeigt die perspektivische Ansicht einer Heizzelle, z.B. der Heizzelle 101. Die Heizzelle 101 setzt sich zusammen aus einer Vielzahl an Heizelementen 201 bis 220, die in Reihen und Spalten nebeneinander angeordnet und als miteinander verbundene einzelne Heizwiderstände ausgebildet sind. Die Heizzelle 101 ist über Befestigungsmittel, z.B. Schrauben, 250 bis 253 an dem Gargutträger 10 befestigt.Figure 2 shows the perspective view of a heating cell, for example, the heating cell 101. The heating cell 101 is composed of a plurality of heating elements 201 to 220, in rows and columns are arranged side by side and formed as interconnected individual heating resistors. The heating cell 101 is fastened to the food support 10 via fastening means, eg screws 250 to 253.

Die Heizzellen 101 bis 114 bzw. die Heizelemente 2 aller Heizzellen 101 bis 114 ist bzw. sind mit einer nicht dargestellten Steuer- und/oder Regeleinheit verbunden. Diese Steuer- und/oder Regeleinheit ist wiederum mit einer Speichereinheit (nicht dargestellt), einer Eingabeeinheit (nicht dargestellt) einer Ausgabeeinheit (nicht dargestellt) verbunden.The heating cells 101 to 114 and the heating elements 2 of all the heating cells 101 to 114 are or are connected to a control and / or regulating unit, not shown. This control and / or regulating unit is in turn connected to a memory unit (not shown) of an input unit (not shown) of an output unit (not shown).

In zentraler Lage der Heizzellen befindet sich jeweils eine Auslassung 50, z.B. in Form eines kreisförmigen Durchtritts durch die jeweilige Heizzelle, in die ein Thermoelement 20 hineinragt, um die Temperatur, der in etwa auf gleicher Höhe befindlichen Heizelemente 201 bis 220 der jeweiligen Heizzelle aufzunehmen.In the central position of the heating cells there is an omission 50, e.g. in the form of a circular passage through the respective heating cell into which a thermocouple 20 protrudes in order to accommodate the temperature of the heating elements 201 to 220 of the respective heating cell which are approximately at the same height.

Das erfindungsgemäße Verfahren wird nachfolgend kurz beschrieben:The process according to the invention is briefly described below:

Die Heizzellen 101 bis 114 bzw. die Heizelemente 201 bis 220 der jeweiligen Heizzellen 101 bis 114 sind über Leitungen jeweils mit einer Steuer- und/oder Regeleinheit verbunden. Des weiteren stehen die Thermoelemente 20 mit der Steuer- und/oder Regeleinheit unmittelbar oder mittelbar in Verbindung. Bei Inbetriebnahme des Gargeräts wird nun zunächst sichergestellt, welche Heizzelle über welches Thermoelement detektiert wird und ob sämtliche Heizzellen und Thermoelemente ordnungsgemäß funktionieren. Hierfür wird gemäß einer Ausführungsform des erfindungsgemäßen Verfahrens davon ausgegangen, dass jede Heizzelle 101 bis 114 über die Steuer- und/oder Regeleinheit individuell und gezielt ansteuerbar, jedoch von vornherein nicht eine klare Zuordnung von Heizzellen und Thermoelementen gegeben ist. Indem man, beispielsweise programmgesteuert, jede Heizzelle einzeln und sukzessive ansteuert und erhitzt, kann ohne weiteres festgestellt werden, über welches Thermoelement die Erwärmung registriert wird. Auf diese Weise lässt sich eine klare Zuordnung von Heizzelle zu Thermoelement bei Inbetriebnahme des Gargeräts herstellen. Regelmäßig reicht es für eine eindeutige Zuordnung bereits aus, wenn alle bis auf eine Heizzelle angesteuert werden, sofern pro Heizzelle ein Thermoelement vorgesehen ist. Auch bei Gargeräten mit einer sehr großen Zahl an separaten Heizzellen ist es somit auf unkomplizierte Weise möglich, eine eindeutige Zuordnung zwischen zueinander gehörenden Heizplatten und Thermoelementen zu erhalten. Die Zuverlässigkeit der Zuordnung kann beispielsweise dadurch noch erhöht werden, dass man für jede Heizzelle ein charakteristisches Aufheizprogramm über die Eingabeeinheit einstellt und darauf achtet, dass über das zugeordnete. Thermoelement ein korrespondierendes Aufheizmuster festgestellt wird. Bei Verwendung von charakteristischen Aufheizprogrammen für jede Heizzelle ist es darüber hinaus möglich, darauf zu verzichten, jede Heizzelle sukzessive aufzuheizen. Vielmehr können sämtliche Heizzellen dann gleichzeitig bzw. nahezu gleichzeitig aufgeheizt werden, wodurch der Kalibrierungsvorgang bei Inbetriebnahme nochmals stark verkürzt werden kann.The heating cells 101 to 114 and the heating elements 201 to 220 of the respective heating cells 101 to 114 are each connected via lines to a control and / or regulating unit. Furthermore, the thermocouples 20 are directly or indirectly in communication with the control and / or regulating unit. When the cooking appliance is put into operation, it is first ensured which heating cell is detected via which thermocouple and whether all heating cells and thermocouples function properly. For this purpose, it is assumed according to an embodiment of the method according to the invention that each heating cell 101 to 114 via the control and / or regulating unit individually and selectively controlled, but from the outset not a clear assignment of heating cells and thermocouples is given. By controlling and heating each heating cell individually and successively, for example programmatically, it is easy to determine via which thermocouple the heating is registered. In this way, a clear assignment of heating cell to thermocouple when commissioning the cooking device can be produced. Regularly, it is sufficient for an unambiguous assignment if all but one heating cell are activated, if one thermocouple is provided per heating cell. Even with cooking appliances with a very large number of separate heating cells, it is thus possible in a straightforward way to obtain a clear association between mutually belonging heating plates and thermocouples. The reliability of the assignment can be increased, for example, by setting a characteristic heating program for each heating cell via the input unit and pay attention that over the assigned. Thermocouple a corresponding heating pattern is detected. Moreover, when using characteristic heating programs for each heating cell, it is possible to dispense with heating each heating cell successively. Rather, all the heating cells can then be heated at the same time or almost simultaneously, whereby the calibration process can be greatly reduced during commissioning again.

Die in der vorstehenden Beschreibung, in den Zeichnungen sowie in den Ansprüchen offenbarten Merkmale der Erfindung können sowohl einzeln als auch in jeder beliebigen Kombination für die Verwirklichung der Erfindung in ihren verschiedenen Ausführungsformen wesentlich sein.The features of the invention disclosed in the foregoing description, in the drawings and in the claims may be essential both individually and in any combination for the realization of the invention in its various embodiments.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
GargerätCooking appliance
22
Heizelementheating element
33
Gewichtssensorweight sensor
44
optische Detektionseinheitoptical detection unit
55
GarprozessorfühlerGarprozessorfühler
66
Gargutbe cooked
1010
Gargutträgerfood support
2020
Thermoelementthermocouple
5050
Auslassungomission
100100
GarflächeCooking surface
101 bis 114101 to 114
Heizzellenheating cells
201 bis 220201 to 220
Heizelemente einer HeizzelleHeating elements of a heating cell
250 bis 253250 to 253
Befestigungsmittelfastener

Claims (8)

  1. Method for calibrating a cooking device, in particular a control and regulating unit of a cooking device, which has a cooking area (100) which is part of a support (10) for the product being cooked and is provided on a multiplicity of heating cells (101,...,114), in particular heating plates, each heating cell having at least one heating element (2, 201,...,220), the heating cell and/or the heating element being connected to a control and/or regulating device, and at least one temperature-measuring apparatus, in particular a thermocouple, being provided for each heating cell, it being possible to identify, select and/or activate at least one, in particular each, heating cell in a targeted manner by means of the control and regulating unit, and each heating cell having at least one temperature-measuring apparatus, in particular a thermocouple which is operatively connected to the control and/or regulating unit, comprising the following steps:
    a) selection of a first heating cell,
    b) heating up of the first heating cell, in particular in accordance with a first individual heating scheme,
    c) registration of that/those temperature-measuring apparatus or apparatuses which detects or detect a rise in temperature, in particular corresponding to the first heating scheme,
    d) allocation of the first heating cell to the first temperature-measuring apparatus or apparatuses, and optionally storage of this allocation.
  2. Method according to Claim 1, characterized in that steps a) to d) are repeated, with an as yet unallocated heating cell being selected instead of a first heating cell which has already been allocated.
  3. Method according to Claim 1 or 2, characterized in that all of the heating cells or all except one of the heating cells are put through method steps a) to d).
  4. Method according to one of Claims 1 to 3, characterized in that the individual heating cells of the heating device are heated up with a time delay and at constant time intervals and/or time intervals which differ from one another.
  5. Method for calibrating a cooking device, in particular a control and regulating unit of a cooking device, comprising a multiplicity of heating cells (101,...,114), in particular heating plates, a control and regulating unit, and at least one temperature-measuring apparatus, in particular a thermocouple, for each heating cell, it being possible to identify, select and/or activate each heating cell in a targeted manner by means of the control and regulating unit, with all of the heating cells or all except one of the heating cells being heated up simultaneously or almost simultaneously with in each case one individual, distinguishable heating pattern, the heating behaviour of each heating cell being recorded and/or stored by means of at least one temperature-measuring apparatus, the heating patterns predefined for each heating cell being matched to the heating behaviour recorded by means of the temperature-measuring apparatuses, and heating cells and temperature-measuring apparatuses, whose basic heating pattern and actual heating behaviour correspond, being allocated to one another, and this allocation optionally being stored and/or it being possible to call up this allocation by means of the control and/or regulating unit.
  6. Method for calibrating cooking devices, in particular a control and regulating unit of cooking devices, comprising a multiplicity of heating cells (101,...,114), in particular heating plates, and a control and regulating unit, each heating cell having at least one temperature-measuring apparatus, in particular a thermocouple, and it being possible to identify and select each temperature-measuring apparatus by means of the control and regulating unit, comprising the following steps:
    a) selection of a first temperature-measuring apparatus,
    b) successive heating up of the heating cells of the cooking device, in particular in accordance with a first heating scheme,
    c) registration of a rise in temperature by means of the first temperature-measuring apparatus,
    d) allocation of the first temperature-measuring apparatus to the heating cell for which a rise in temperature, in particular corresponding to the first heating scheme, is registered, and optionally storage of this allocation.
  7. Method according to Claim 6, characterized in that steps a) to d) are repeated, in particular until all of the heating cells are allocated at least to one temperature-measuring apparatus, an as yet unallocated second temperature-measuring apparatus being selected instead of a first temperature-measuring apparatus which has already been allocated, and the heating cell or cells which has or have already been allocated no longer being heated up.
  8. Method for calibrating a cooking device, in particular a control and regulating unit of a cooking device, comprising a multiplicity of heating cells (101,...,114) and a control and regulating unit, each heating cell having at least one temperature-measuring apparatus, in particular a thermocouple, and it being possible to identify and/or select each temperature-measuring apparatus by means of a control and regulating unit, with all of the heating cells or all except one of the heating cells being heated up simultaneously or almost simultaneously in accordance with an individual, distinguishable heating pattern, the heating behaviour of the heating cells being registered and/or stored by means of the temperature-measuring apparatuses allocated to these heating cells, the heating behaviour detected by means of the temperature-measuring apparatuses being matched to the heating patterns stored for each heating cell, temperature-measuring apparatuses and heating cells, whose heating patterns and heating behaviour correspond, being allocated to one another, and this allocation optionally being stored and/or it being possible to call up this allocation by means of the control and/or regulating unit.
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EP1489363A1 (en) 2004-12-22

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