EP2063180A2 - Procédé destiné au fonctionnement d'un appareil de cuisson et appareil de cuisson - Google Patents

Procédé destiné au fonctionnement d'un appareil de cuisson et appareil de cuisson Download PDF

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Publication number
EP2063180A2
EP2063180A2 EP08105858A EP08105858A EP2063180A2 EP 2063180 A2 EP2063180 A2 EP 2063180A2 EP 08105858 A EP08105858 A EP 08105858A EP 08105858 A EP08105858 A EP 08105858A EP 2063180 A2 EP2063180 A2 EP 2063180A2
Authority
EP
European Patent Office
Prior art keywords
temperature
cooking
heating
predetermined
limit temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08105858A
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German (de)
English (en)
Other versions
EP2063180A3 (fr
EP2063180B1 (fr
Inventor
Dirk Kesel
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
Priority to PL08105858T priority Critical patent/PL2063180T3/pl
Publication of EP2063180A2 publication Critical patent/EP2063180A2/fr
Publication of EP2063180A3 publication Critical patent/EP2063180A3/fr
Application granted granted Critical
Publication of EP2063180B1 publication Critical patent/EP2063180B1/fr
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Classifications

    • 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
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/087—Arrangement or mounting of control or safety devices of electric circuits regulating heat
    • 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
    • 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
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices

Definitions

  • the invention relates to a method for operating a cooking appliance, in particular a gentle cooking process, and a cooking appliance for carrying out the method.
  • steps (b) and (c) instead of capillary tube inert and imprecise control to a target soft-temperate temperature exhibiting comparatively frequent temperature overshoots, a sequencer for reheating the cooking chamber may be used which provides the cooking chamber with only a slight temperature elevation rate can keep without control overshoots or temperature fluctuations in a range at the target gentle cooking temperature.
  • a gentle and robust control block may be performed until the limit temperature or a preset period of time is reached and then either the temperature control is restarted or steps (b) and (c) are repeated.
  • the control block "zerhackt" by the clocking so the usual continuous introduction of heating power.
  • step (c) The increased inertia in the reheating has hitherto been regarded as disadvantageous, but is very advantageous for the described Gentftgarmycin. Since the temperature increase in step (c) can be set very slowly, the inertia of the capillary tube regulator does not have to be adversely affected.
  • step (a) By the described sequence of steps to be cooked food is treated very gently. Also no elaborate and expensive temperature control electronics needs to be used, it is sufficient a capillary tube for higher temperature control in step (a) and a comparatively simple and inexpensive clock for clocked activation of at least one radiator in steps (b) and (c).
  • the clock can be a relay in the simplest case, or even a simple integrated circuit, such as a cheap microprocessor.
  • the step (a) can thus - as in a conventional temperature control loop - be carried out as a function of a temperature state of the capillary tube, which is closed below the sensed limit temperature and thus activates the at least one radiator.
  • Step (b) can be carried out, at least partially, by means of a sequence control which, for example, can undertake the downshifting of the at least one radiator for lowering the cooking chamber temperature T to the start level Ts.
  • Step (c) can be carried out completely by means of the sequence control, which takes over the activation of the at least one radiator from the capillary tube regulator at least until the time in step (c) at which the predetermined limit temperature is reached again.
  • the reaching of the limit temperature is detected by means of the capillary tube.
  • the sequence of steps (b) and (c) can be repeated several times until a desired cooking time is reached.
  • step (b) comprises a switching off of the heating power.
  • sub-step (b) (ii) can be controlled by means of the flow control.
  • the predetermined timing characteristic includes at least a predetermined duty ratio, a predetermined heater power, and a predetermined stop duration between two power-on periods.
  • This timing property can be fixed or varied.
  • a mechanical relay and / or an integrated circuit such as a microprocessor can be used.
  • switching on at least one radiator comprises switching on the radiator at full power.
  • simple and reliable on / off relays can be used for power control.
  • the timing characteristics are set so that the timing time interval in step (c) lasts at least 30 minutes, preferably 30 minutes to one hour. At these slow rates of temperature increase, even a capillary tube regulator will not produce significant temperature overshoot after reaching the limit temperature.
  • the limit temperature is higher than 85 ° C, especially between 95 ° C and 105 ° C.
  • At least step (c) may be performed as a flow control.
  • the sequence control can, for example, also be activated after the end of an initial temperature overshoot, that is to say comprise part of step (b).
  • the object is also achieved by a cooking device which is adapted to run the above method.
  • the cooking appliance typically has at least one temperature sensor for sensing a cooking chamber temperature.
  • the temperature sensor may in particular have a capillary tube or be thermally connected thereto.
  • the cooking appliance may further include a heating power control, e.g. As a switching relay or a simple microprocessor, for controlling the at least one radiator, which is adapted to switch a heating power dependent on temperature.
  • the cooking appliance has at least one bottom heat radiator, a top heat radiator and / or a ring heater for a hot air mode.
  • the capillary tube can then be provided for detecting reaching a limit temperature of the cooking chamber.
  • a cooking appliance having a soft-cook mode for selection e.g. B. by means of a mode selector switch, in the activation of the above method runs.
  • an oven 1 has a baking oven muffle 2 which is surrounded by a heat insulation 3.
  • the oven muffle 2 surrounds a cooking chamber 4, which is closed by a oven door 5.
  • a food support 6 is arranged, on which a food to be cooked 7 is located.
  • a temperature sensor 10 which is arranged in the cooking chamber 3 and receives a cooking chamber temperature.
  • the temperature sensor 10 is connected upstream of a capillary tube (not shown) and forwards its heat to the capillary tube.
  • the capillary tube is followed by a mechanical or electromechanical temperature controller 11 which, depending on the temperature-dependent expansion of the capillary liquid of the capillary tube, opens a heating circuit of the radiators 8, 9 (when the switching temperature is exceeded) or closes (when the switching temperature is not reached).
  • a control panel 12 On the front side of the oven 1, a control panel 12 is provided, in which a user can input setpoints of parameters required for a cooking operation.
  • the control panel 12 has a mode selector switch and a temperature selector switch. By means of the temperature selector switch, the switching temperature of the mechanical temperature controller 11 is adjustable.
  • FIG. 2 shows a sketchy exact a switching path for switching the radiator 8,9 of the oven 1 from FIG. 1 during a soft-shot mode with associated controls 14,18.
  • a mode selector switch 18 is set to gentle cooking, SG, and a temperature selector switch is set to gentle cooking, SG.
  • the temperature settings for the gentle cooking are predetermined and not further adjustable by an operator.
  • the limit temperature specified by the gentle-temperature setting here is preferably above 100 ° C. above the temperature required for gentle cooking (eg 80-85 ° C.) in order to be able to considerably reduce a cooking time without significantly impairing the cooking quality.
  • the switching path for performing the gentle cooking begins with the arranged in the cooking chamber temperature sensor 10, which is thermally conductively connected to a capillary tube 13.
  • the capillary tube 13 is connected to the temperature controller 11.
  • a capillary liquid present in the capillary tube 13 expands and mechanically switches the temperature controller 11.
  • the limit temperature Tg set for switching is set to 100 ° C. by means of the temperature selector switch 14 arranged on the control panel.
  • one or more heating circuits are closed or opened by the temperature controller 11 via a switching relay, so that the cooking chamber is regulated mechanically guided to the selected temperature.
  • Such control mechanisms are well known to those skilled in the art. In the soft-top mode, however, the temperatures are so low that hitherto no capillary tube regulators could be used because they react too slowly.
  • the temperature controller 11 is initially used for an initial heating of the cooking chamber to the limit temperature.
  • the temperature controller 11 is connected via a time relay 15 with a heating circuit relay 17.
  • the heating circuit relay 17 is used to control the power of one or more radiators 8, 9 and closes or opens a circuit for supplying one or more radiators 8,9 to receive a control signal.
  • a control signal Sr is output from the temperature controller 11 to the heating circuit relay 17 to continuously heat the cooking chamber at maximum power; the time relay 15 is not used.
  • the time relay 15 now starts its own control sequence, which is terminated only by a renewed reaching the limit temperature or after a predetermined period of time.
  • the control flow may also be considered as a 'subroutine' of the temperature control that controls the reheat.
  • the temperature controller 11 thus serves merely as a signal transmitter for the time relay 15 for its activation.
  • the time relay 15 initially outputs no signals to the heating circuit relay 17 for a predetermined third time duration t3 in order to lower the cooking chamber temperature to a comparatively well-known start level Ts. Thereafter, clocked switching signals Sp having a fixed predetermined shape are output to the heating circuit relay 17 for a fourth time period t4.
  • the time relay 15 preferably has a simple microcontroller which, when activated, accesses the parameters of the various time intervals, eg. Time duration, timing characteristics (or continuous heating operation) and so on to control the heating cycle.
  • the time relay 15 is first turned off again. It can be switched on again analogously to the following control sequences as described above, possibly with other control parameters.
  • the time relay 15 is preferably located on an additional board.
  • FIG. 3 shows a sequence of a heating cycle during gentle cooking based on various operating parameters.
  • a cooking chamber temperature T dashed lines drawn
  • a heating power P drawn in
  • a signal Sr of the signal generator shown in dashed lines
  • a lamp state SI a signal lamp for displaying a gentle state (dotted marked) plotted against time.
  • the time interval t1 Upon reaching the soft end limit temperature of 100 ° C determined by selecting the soft-start mode, the time interval t1 is ended and a second time interval t2 follows. In the time interval t2, the signal Sr is taken back by the temperature controller 11, and thereby the heaters 8,9 are turned off. Now the oven cools down with a certain time delay ("temperature overshoot").
  • the overshoot time interval t2 is ended and a third cooling time interval t3 follows. From the third cooling time interval t3, the time relay 15 takes over the control of the heating circuit relay 17th
  • the radiators 8,9 remain deactivated in order to cool the cooking chamber temperature T with sufficient accuracy to a starting temperature Ts below the limit temperature Tg with sufficient accuracy.
  • the relationship between time t3 and start temperature Ts can be determined empirically simple and depends - among other things, due to the warm-up phase - only slightly on the ambient temperature, the amount of food, etc.
  • t3 10 minutes, a temperature drop in the cooking chamber to Ts reaches about 80 ° C.
  • the heater (s) 8.9 eg bottom heat, top heat and / or ring heater with fan
  • the heating circuit relay 17 with a constant duty cycle, a constant Switch-off duration and a fixed (here: maximum) heating power Pm clocked.
  • the heating power P is set accordingly.
  • the radiators are turned on approximately every six minutes for about 1 minute at maximum power.
  • the heating power P in the cycle time interval t4 is so dimensioned that the temperature T in the cooking chamber rises slowly on average.
  • a small lamp (symbol gentle cooking) lights up which indicates to the user the beginning of the effective gentle cooking period and is activated by means of the lamp status signal SI.
  • the food to be cooked 7 is preferably introduced into the cooking chamber 4 only when the small lamp lights up.
  • the timing of the heaters or radiator 8.9 is maintained until the mode is turned off by the user or the temperature controller 11, the time relay 15 off FIG. 2 Deactivated again on reaching the gentle limit temperature Tg, here after approx. 50 minutes.
  • an overshoot time interval t2 and a cooling time interval t5 (here only partially drawn in) are started again.
  • the heaters 8,9 remain off for this period.
  • the time interval t4 is activated again.
  • the sequence of time intervals t2, t5 and t4 is repeated until the end of the cooking time.
  • the parameter sets of the time intervals t3 to t5 are stored in the time relay 15.
  • This principle of using a reheat control flow can also be used for more gentle temperature control of all other modes of operation with an electromechanical or electronic controller to avoid temperature variations. Temperature overshoots in the first heating phase t1 or t1 and t2 can be provoked (eg during grilling) and defined time-controlled processes can be provided. In the further course of the temperature control, the temperature variation can also be reduced for other operating modes or applications since the inertia of the capillary tube is bypassed.
  • the previously required accurate control of the temperature by a complex electronic controller is eliminated. It can be implemented in mechanically controlled devices, a further operating mode with a small relay additional board, wherein the relay additional board carries the time relay 15, z. As a mechanical relay or a simple microprocessor.
  • the radiator need not be controlled with maximum heating power, even if this results in a particularly simple control.
  • the heating power, the switch-on duration and / or the switch-off duration of the heating periods and / or the duration of the time interval need not be constant, but it is already advantageous if they are temporally predetermined variable.
  • the cooling time interval t3 or t5 need not be the same within a heating cycle, but it is already advantageous if it is predetermined variable, z. B. assumes a different duration over the heating cycle.
  • each time interval has only one form or a fixed parameter set; However, it may also be preferred if it can be selected between two soft-cooking modes, in particular with differently configured time intervals t3, z.
  • the limit temperature Tg does not need to be limited to 100 ° C, but can be suitably set, e.g. B. at 90 ° C. Thereby, the temperature band of the soft-touch mode and a temperature rise in the temperature band can be set with simple means with sufficient accuracy.
  • the selector switch is set to gentle cooking on the cooking appliance and the soft-cooking is activated at the following activation, regardless of a position of the temperature selector switch.
  • a light for displaying the gentle state of the gmo other optical means and / or acoustic means may also be used.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)
  • Control Of Resistance Heating (AREA)
EP08105858.8A 2007-11-26 2008-11-25 Procédé destiné au fonctionnement d'un appareil de cuisson et appareil de cuisson Active EP2063180B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08105858T PL2063180T3 (pl) 2007-11-26 2008-11-25 Sposób działania sprzętu do obróbki termicznej oraz sprzęt do obróbki termicznej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007056714A DE102007056714A1 (de) 2007-11-26 2007-11-26 Verfahren zum Betrieb eines Gargeräts und Gargerät

Publications (3)

Publication Number Publication Date
EP2063180A2 true EP2063180A2 (fr) 2009-05-27
EP2063180A3 EP2063180A3 (fr) 2012-04-11
EP2063180B1 EP2063180B1 (fr) 2016-10-05

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EP08105858.8A Active EP2063180B1 (fr) 2007-11-26 2008-11-25 Procédé destiné au fonctionnement d'un appareil de cuisson et appareil de cuisson

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EP (1) EP2063180B1 (fr)
DE (1) DE102007056714A1 (fr)
ES (1) ES2597455T3 (fr)
PL (1) PL2063180T3 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2487989A1 (fr) * 2011-02-11 2012-08-15 Seb Sa Procédé de régulation de la température d'un article culinaire
EP2518410A3 (fr) * 2011-04-27 2017-02-22 BSH Hausgeräte GmbH Procédé de fonctionnement d'un appareil de cuisson ainsi que l'installation de réglage et de commande d'un appareil de cuisson et l'appareil de cuisson
EP3249302A1 (fr) 2016-05-25 2017-11-29 BSH Hausgeräte GmbH Appareil de cuisson ménager
EP3250002A1 (fr) 2016-05-25 2017-11-29 BSH Hausgeräte GmbH Appareil de cuisson ménager
EP3250001A1 (fr) 2016-05-25 2017-11-29 BSH Hausgeräte GmbH Appareil de cuisson ménager
EP3597043A1 (fr) * 2018-07-19 2020-01-22 GORENJE gospodinjski aparati, d.d. Procédé de traitement thermique de produits alimentaires et dispositif de mise en uvre dudit procédé
EP3786529A1 (fr) * 2019-09-02 2021-03-03 Electrolux Appliances Aktiebolag Procédé pour effectuer un processus de cuisson dans une cavité d'un four de cuisson

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014217637A1 (de) * 2014-09-03 2016-03-17 BSH Hausgeräte GmbH Heizen eines Garraums eines Haushalts-Gargeräts
DE102016212329A1 (de) * 2016-07-06 2018-01-11 E.G.O. Elektro-Gerätebau GmbH Verfahren zur Steuerung eines Backofens und Backofen
US11612263B2 (en) 2020-11-11 2023-03-28 Haier Us Appliance Solutions, Inc. Oven appliance and methods of operating during a religious holiday

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DE10132304A1 (de) 2001-07-06 2003-01-23 Bsh Bosch Siemens Hausgeraete Verfahren zum Betrieb eines Gargeräts sowie Gargerät

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DE10240175A1 (de) * 2002-08-30 2004-04-22 BSH Bosch und Siemens Hausgeräte GmbH Verfahren zum Betrieb eines Gargeräts
DE10243369A1 (de) * 2002-09-18 2004-04-01 BSH Bosch und Siemens Hausgeräte GmbH Backofen und Verfahren zum Betrieb einer Wärmestrahlungs-Heizvorrichtung
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KR100955485B1 (ko) * 2003-09-09 2010-04-30 삼성전자주식회사 전기조리장치 및 그 히터제어방법
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2487989A1 (fr) * 2011-02-11 2012-08-15 Seb Sa Procédé de régulation de la température d'un article culinaire
CN102637053A (zh) * 2011-02-11 2012-08-15 Seb公司 烹饪用品的温度调节方法
FR2971663A1 (fr) * 2011-02-11 2012-08-17 Seb Sa Procede de regulation de la temperature d'un article culinaire
CN102637053B (zh) * 2011-02-11 2016-04-06 Seb公司 烹饪用品的温度调节方法
EP2518410A3 (fr) * 2011-04-27 2017-02-22 BSH Hausgeräte GmbH Procédé de fonctionnement d'un appareil de cuisson ainsi que l'installation de réglage et de commande d'un appareil de cuisson et l'appareil de cuisson
EP3249302A1 (fr) 2016-05-25 2017-11-29 BSH Hausgeräte GmbH Appareil de cuisson ménager
EP3250002A1 (fr) 2016-05-25 2017-11-29 BSH Hausgeräte GmbH Appareil de cuisson ménager
EP3250001A1 (fr) 2016-05-25 2017-11-29 BSH Hausgeräte GmbH Appareil de cuisson ménager
DE102016209152A1 (de) 2016-05-25 2017-11-30 BSH Hausgeräte GmbH Haushalts-Gargerät
DE102016209163A1 (de) 2016-05-25 2017-11-30 BSH Hausgeräte GmbH Haushalts-Gargerät
DE102016209147A1 (de) 2016-05-25 2017-11-30 BSH Hausgeräte GmbH Haushalts-Gargerät
EP3597043A1 (fr) * 2018-07-19 2020-01-22 GORENJE gospodinjski aparati, d.d. Procédé de traitement thermique de produits alimentaires et dispositif de mise en uvre dudit procédé
EP3786529A1 (fr) * 2019-09-02 2021-03-03 Electrolux Appliances Aktiebolag Procédé pour effectuer un processus de cuisson dans une cavité d'un four de cuisson

Also Published As

Publication number Publication date
EP2063180A3 (fr) 2012-04-11
ES2597455T3 (es) 2017-01-18
EP2063180B1 (fr) 2016-10-05
DE102007056714A1 (de) 2009-05-28
PL2063180T3 (pl) 2017-07-31

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