EP1562404A2 - Méthode et appareil pour régler le dispositif de chauffage électrique d'un équipement de cuisson - Google Patents

Méthode et appareil pour régler le dispositif de chauffage électrique d'un équipement de cuisson Download PDF

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Publication number
EP1562404A2
EP1562404A2 EP05100297A EP05100297A EP1562404A2 EP 1562404 A2 EP1562404 A2 EP 1562404A2 EP 05100297 A EP05100297 A EP 05100297A EP 05100297 A EP05100297 A EP 05100297A EP 1562404 A2 EP1562404 A2 EP 1562404A2
Authority
EP
European Patent Office
Prior art keywords
temperature
constant
cookware
control mode
heating device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP05100297A
Other languages
German (de)
English (en)
Other versions
EP1562404A3 (fr
Inventor
Uwe Has
Peter Vetterl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1562404A2 publication Critical patent/EP1562404A2/fr
Publication of EP1562404A3 publication Critical patent/EP1562404A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
    • H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • 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 present invention relates to a method for driving a electrical heating device with the features of claims 1 and 3 and a control device for driving an electrical Heating device with the features of claims 10 and 11.
  • Simpler cooking and cooking appliances have controllable heaters, their heating power by means of manually operable switching and Input devices can be regulated. If no Temperature sensors are provided, no regulation of the Heating power and thus the cooking temperature. The user must decide on the basis of the determined state of cooking itself, whether he the Heating power keeps constant, reduced or increased.
  • additional Sensors are provided, which for the detection of temperatures, eg. a glass ceramic, a heating surface, a cookware o. The like. Serve. It If necessary, pressures, eg. In pressure cookers can be detected. In addition, radiation densities, for example. In the air be detected between the heating surface and the glass ceramic. Basically, a wide variety of parameters as Operating signals of a cooking station are detected and evaluated. Based These measurements allow precise temperature control. Indeed are such devices equipped consuming and therefore usually expensive.
  • DE 195 49 064 A1 discloses a control circuit for carrying out Cooking operations on heating surfaces by heat energy supply to the of a cooking product recorded food known.
  • a Infrared sensor is a temperature profile during cooking recorded, from which control variables for the heat supply to the heating surface won become.
  • the measured value emitted by the sensor is reached when a assumed temperature value as a reference value. Deviating actual values of the temperature become with this reference value compared and evaluated to control the energy supply.
  • An object of the present invention is to provide a simplified Method and a simple device for controlling a To propose heater of a cooking appliance, which with the Ease of use when cooking food can be increased.
  • a user-selected setting of the hotplate eg. by adjusting the power supply to a heater of a selected hob, swing most of the above Operating parameters after some time to a largely constant value if the selected setting and other environmental parameters remain unchanged.
  • This fact can be found in be used advantageously to the food to be cooked on To keep an approximately constant temperature level.
  • a simple one manual temperature control by the user of the cooking appliance sees that the user first for a warming in the Cookware to cook food on the hob ensures until the Temperature of the food to a desired target value has settled. Thereafter, the user keeps this set Temperature more or less constant by the set Energy supply initially reduced and then corrected every now and then.
  • the inventive method for driving a heater with The features of claim 1 now allows the user to to effect a course of cooking that a previously reached and largely selected by him as advantageous temperature selected kept and thus the food to be cooked without further manual Interventions can be finished cooking.
  • the user can do this one Activate control mode in which the temperature of a hotplate and / or a cookware is kept substantially constant.
  • This Control mode can be activated, for example, by manual keystroke, wherein activation preferably only makes sense if the detected temperature fluctuations at the cooking place or on Cookware is within a certain range move.
  • the temperature of the heater is in a steady state, allowing activation of the Control mode for keeping the temperature is reasonable.
  • the Heating device can in principle almost any electrical Be heating device. In principle, however, the heater can also a gas, oil or other energy source Be heating device. Even solar heating can be on the control the way described.
  • the temperature at the cookware and / or at the cooking area can by means of a temperature sensor arranged on the heating device or by means of an infrared sensor are detected.
  • the temperature can optionally permanently or cyclically.
  • the Heating power of the electric heater can by means of a Regulation of energy input and / or by variation of a mean Duty cycle are regulated.
  • An alternative method for controlling a heating device of Cooking appliance provides that the temperature of a Cooker and / or a cookware as well as variations in the Temperature from values for a duty cycle of the heater and / or estimated for their energy supply.
  • the user can Control mode can be activated in which the temperature is largely kept constant or within a predeterminable temperature range becomes.
  • This again simplified procedure can with very little technical effort a cost-effective and user-friendly Possibility to create a desired cooking temperature in to keep certain limits constant.
  • This process mode comes a typical user behavior very contrary, as a manual Constant keeping of the temperature by a permanent fine control of the Heating power is no longer necessary.
  • the control mode to keep the temperature constant to enable manual user input it may be beneficial if the achievement of the steady state of the heater is made visually recognizable by means of an advertisement.
  • a bulb from an intermittent display change a constant light display.
  • the simplified variant of the method provides that after Selection of the control mode to keep the temperature constant the middle Duty cycle for the heater can be kept constant. It However, the heating power of the heating element can be kept constant become. Possibly. Both parameters can be kept constant.
  • a control device for driving a Heating device of a cooking appliance with the Markmalen of claim 12 or claim 13 makes it possible, after activation of a particular Control mode, a temperature at the cookware or at the cooking area largely constant without further manual intervention necessary.
  • the present invention enables a novel control of Cooktops.
  • the user of the hob for a defined Cook at any convenient time a particular cooking mode activate. After this activation, the temperature is to be cooked Dine in the cookware on the selected hotplate within certain limits kept largely constant.
  • the procedure allows it, by a suitable automation of the process "Reduce and correct the power supply" for the heater of the selected cooking place to achieve a more or less Constant temperature in the food causes an automation to lead.
  • Figure 1 is a schematic representation of a cooking area with a electric heater, according to a first embodiment of the Invention
  • FIG. 2 is a diagram illustrating a conventional one Temperature control
  • Figure 3 is a diagram for illustrating the inventive Control method.
  • FIG. 1 shows a schematic sectional view of a cooking area 10, the a radiator 11 having an electric heater 12, the is arranged below a glass ceramic surface 14.
  • a Cookware 22 with food to cook.
  • a temperature sensor 16 is arranged near the glass ceramic surface 14 or on the radiator 11.
  • One from the temperature sensor 16 supplied temperature signal 18 is connected to a Evaluation circuit 20 delivered.
  • This evaluation circuit 20 allows an evaluation of the signals supplied by the temperature sensor 16 be, and a dependent control of the heater 12th by means of a control signal 21. Once the temperature is only within of a defined range, is the evaluation circuit 20 recognized that the heater 12 in a steady State is. It can be assumed that the Temperature in the cookware 22 also remains largely constant, so that in the cookware 22 to be cooked dishes with a constant temperature can be cooked.
  • Temperature sensor 16 may also be an infrared sensor, the a temperature detected on a lateral surface of the cookware.
  • the evaluation circuit 20 is further provided with a first input device 24 coupled.
  • a control mode can be activated, which keeps a constant provides the temperature as soon as the user desires and as soon as the Evaluation circuit 20 a steady state of Heating device 12 has detected.
  • a second one Input device 28 is provided which, for example, a button o. The like. May be.
  • the temperature signals 18 of the Temperature sensor 16 are the evaluation circuit 20 available which makes an evaluation as to whether the Temperatures within a given fluctuation range move. If this is the case, by manual input at the second Input device 28 are defined by the user that the steady temperature should be kept as constant as possible.
  • a drive stage ensures in this case that the middle Duty cycle or the power supply to the electric heater 12th remains largely constant, so that the temperature within the Cookware 22 can settle at the desired level.
  • the fact that the temperature in the steady state can be preferably by means of a display device, For example, a light indicator 30 are visualized. These Indicator 30 may, for example. From an intermittent display in a Change the continuous display as soon as the preset maximum Fluctuation of the temperature is reached.
  • FIG. 2 illustrates in a time-temperature diagram a typical sequence of a cooking process.
  • a selected hotplate is activated by energizing a heater.
  • the temperature at the cooking point increases first linear, then later with a weaker rising curve up to the temperature T 1 , until the user makes a first control intervention at time t E1 , because he considers the cooking temperature too high.
  • the heating power is reduced by a manual control intervention, for example on the first input device 24 according to FIG. 1, until the temperature at the cooking point has reached the lower value T 2 .
  • the same thing is repeated at the times t E3 and t E4 at which the temperatures T 3 and T 4 are reached.
  • the entire cooking process is characterized by a large number of manual interventions for influencing the cooking temperature, since the possibly already existing simple control circuit for setting a desired temperature only provides a certain average duty cycle of an electric heater and / or a limitation of an electric power supply to a specific value, depending on the preselection by the user.
  • FIG. 3 illustrates in a further time-temperature diagram a possible control strategy that can be implemented by means of the method according to the invention.
  • the heater is activated at time t 0 until the temperature at the hotplate has reached a value that the user has found to be favorable for the cooking process.
  • the flattening temperature curve after the initial steep rise can be due to the intervention of a very simple control circuit, which provides for an intermittent power supply depending on the selection of the heating level.
  • the duty cycle for the heater in this case depends on the preselected heating level.
  • the user can activate the inventive control mode at any sensible time t x , with the aid of which the cooking temperature is kept substantially constant.
  • the fact that the heater is in a steady state can be displayed to the user in an advantageous manner by means of a light indicator 30 (see FIG.
  • the present invention can be very simple equipped cooking appliances, where none Temperature detection is provided at the cooking zones.
  • the heating power the individual hobs can be in such cooking appliances only by control manual adjustment of cooking levels, so that the desired cooking temperatures only based on experience of the Roughly estimate the user.
  • Figure 2 illustrates a typical Control process for such a cooking appliance by an inexperienced user is characterized by a variety of manual control actions.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Electric Stoves And Ranges (AREA)
  • Cookers (AREA)
  • Control Of Resistance Heating (AREA)
EP05100297A 2004-01-21 2005-01-19 Méthode et appareil pour régler le dispositif de chauffage électrique d'un équipement de cuisson Withdrawn EP1562404A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004003118 2004-01-21
DE200410003118 DE102004003118A1 (de) 2004-01-21 2004-01-21 Verfahren und Vorrichtung zum Ansteuern einer elektrischen Heizeinrichtung eines Gargeräts

Publications (2)

Publication Number Publication Date
EP1562404A2 true EP1562404A2 (fr) 2005-08-10
EP1562404A3 EP1562404A3 (fr) 2007-10-24

Family

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EP05100297A Withdrawn EP1562404A3 (fr) 2004-01-21 2005-01-19 Méthode et appareil pour régler le dispositif de chauffage électrique d'un équipement de cuisson

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EP (1) EP1562404A3 (fr)
DE (1) DE102004003118A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1912480A3 (fr) * 2006-10-12 2008-06-11 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de commande de la température pour un appareil ménager

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007056714A1 (de) * 2007-11-26 2009-05-28 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betrieb eines Gargeräts und Gargerät
DE102011004448A1 (de) * 2011-02-21 2012-08-23 Carl Zeiss Optronics Gmbh Temperaturüberwachungsverfahren für ein mit einem Energieeintrag beaufschlagtes Heizelement

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074108A2 (fr) * 1981-09-09 1983-03-16 Matsushita Electric Industrial Co., Ltd. Cuiseur à dispositif de réglage
DE3338788C1 (de) * 1983-10-26 1985-05-15 Kurt Wolf & Co Kg, 7547 Wildbad Anordnung zum Ableiten eines vom Temperaturanstieg einer Temperatur-Zeit-Kennlinie abhaengigen Messsignals in einem Heizsystem
US5721419A (en) * 1995-11-30 1998-02-24 Ako-Werke Gmbh & Co. Kg Output power regulating device for a radiant heating arrangement
DE19653641A1 (de) * 1996-12-20 1998-06-25 Gaggenau Hausgeraete Gmbh Topferkennung unter Zurhilfenahme eines Infrarotsensors
EP1289338A2 (fr) * 2001-08-29 2003-03-05 Electrolux Home Products Corporation N.V. Procédé et dispositif de commande d'appareils de cuisson, en particulier d'appareils de cuissons domestiques

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4104677A1 (de) * 1991-02-15 1992-08-20 Bauknecht Hausgeraete Verfahren zur automatischen leistungsanpassung
US6133554A (en) * 1992-03-23 2000-10-17 Clifford; Todd W. Method and apparatus for substantially maintaining an average heating temperature over a period of time
DE19541608C2 (de) * 1995-11-08 2002-12-12 Diehl Stiftung & Co Verfahren zum Betrieb einer Regelschaltung für einen Backofen und Regelschaltung zur Durchführung des Verfahrens
DE19549064B4 (de) * 1995-12-29 2004-12-02 BSH Bosch und Siemens Hausgeräte GmbH Steuerschaltung zur Durchführung von Garungsvorgängen
DE19711291A1 (de) * 1997-03-18 1998-09-24 Bosch Siemens Hausgeraete Verfahren zur Regelung thermischer Strecken und Heizeinrichtungen in Haushaltgeräten
DE10132304B4 (de) * 2001-07-06 2005-10-27 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betrieb eines Gargeräts

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0074108A2 (fr) * 1981-09-09 1983-03-16 Matsushita Electric Industrial Co., Ltd. Cuiseur à dispositif de réglage
DE3338788C1 (de) * 1983-10-26 1985-05-15 Kurt Wolf & Co Kg, 7547 Wildbad Anordnung zum Ableiten eines vom Temperaturanstieg einer Temperatur-Zeit-Kennlinie abhaengigen Messsignals in einem Heizsystem
US5721419A (en) * 1995-11-30 1998-02-24 Ako-Werke Gmbh & Co. Kg Output power regulating device for a radiant heating arrangement
DE19653641A1 (de) * 1996-12-20 1998-06-25 Gaggenau Hausgeraete Gmbh Topferkennung unter Zurhilfenahme eines Infrarotsensors
EP1289338A2 (fr) * 2001-08-29 2003-03-05 Electrolux Home Products Corporation N.V. Procédé et dispositif de commande d'appareils de cuisson, en particulier d'appareils de cuissons domestiques

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1912480A3 (fr) * 2006-10-12 2008-06-11 BSH Bosch und Siemens Hausgeräte GmbH Dispositif de commande de la température pour un appareil ménager

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Publication number Publication date
EP1562404A3 (fr) 2007-10-24
DE102004003118A1 (de) 2005-08-11

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