EP2400223A1 - Procédé de fonctionnement d'un appareil de cuisson au gaz électronique et appareil de cuisson au gaz électronique - Google Patents

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

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Publication number
EP2400223A1
EP2400223A1 EP11171053A EP11171053A EP2400223A1 EP 2400223 A1 EP2400223 A1 EP 2400223A1 EP 11171053 A EP11171053 A EP 11171053A EP 11171053 A EP11171053 A EP 11171053A EP 2400223 A1 EP2400223 A1 EP 2400223A1
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EP
European Patent Office
Prior art keywords
burner
power
cooking
cooking vessel
burner power
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Withdrawn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
EP11171053A
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German (de)
English (en)
Inventor
Norbert Gärtner
Uwe Schaumann
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.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Geratebau 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 EGO Elektro Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Publication of EP2400223A1 publication Critical patent/EP2400223A1/fr
Withdrawn legal-status Critical Current

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    • 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
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/126—Arrangement or mounting of control or safety devices on ranges

Definitions

  • the invention relates to a method for operating an electronically controlled gas cooking appliance for optimizing a heat input from a burner of the gas cooking appliance in a arranged on a hotplate of the gas cooking appliance cooking vessel according to the preamble of claim 1 and an electronically controlled gas cooking appliance according to the preamble of claim 11.
  • a high burner output is usually required, in most cases even the highest burner output is selected.
  • a high burner output can, especially at a cooking vessel too small cooking vessel, lead to an increased heat input at the edge of the cooking vessel and thus to a non-uniform heat input and possibly even to a burning of the cooking material at the edge.
  • undesirable spattering effects occur. This means that the user should observe the cooking process closely for a satisfactory cooking result or the cooking material should be heated with stirring if necessary or should reduce the burner performance in good time, to avoid a burn or the spray effects.
  • this can be a convenience disadvantage for the user.
  • Such a cooking process is also not energy optimized because of the high heat losses due to the large heat dissipation into the environment, because the energy of the burner or the burned gas is not optimally utilized.
  • the invention has for its object to provide an aforementioned method for operating an electronically controlled gas cooking appliance and such a gas cooking appliance, with which a cooking process can be optimized even at high burner performance, in particular with the comfort for a user during a cooking process is increased and with which a heat input from a burner is improved in a cooking vessel by this heat input is distributed as evenly as possible in the cooking vessel over a cooking vessel bottom.
  • a method for operating an electronically controlled gas cooking appliance having at least one cooking station with a burner is provided. During operation or a cooking process, a cooking vessel is arranged with a cooking vessel bottom with a cooking vessel bottom diameter on this cooking surface and the burner burns this burner with a burner flame circle diameter according to a set burner capacity.
  • the burner flame diameter and thus the burner output of the burner is changed during the cooking process to optimize a heat input with a uniformly distributed over the cooking vessel bottom heat input from the burner in the cooking vessel.
  • a heat radiation of the burner can be changed and be influenced according to the heat input into the cooking vessel.
  • small burner flame circle diameters cause a low heat radiation or a low heat input of the burner and large burner flame circle diameters cause a high heat input.
  • a lower burner output of the burner and an upper burner output of the burner are determined.
  • the burner is then operated during the cooking process with a changing nominal burner power in a burner power range between the previously determined lower burner power and the previously determined upper burner power.
  • the upper burner output forms the upper limit of the burner output range
  • the lower burner output forms the lower limit of the burner output range in which the nominal burner output changes or is changed.
  • Each desired burner output or each desired burner output value is assigned a burner flame circle diameter, so that a change in the setpoint burner output or an alternating setpoint burner output leads to a change in the burner flame circle diameter.
  • the burner can be operated in a cyclic operation alternately between the lower burner output and the upper burner output.
  • the nominal burner output changes between the lower burner output and the upper burner output or is switched over or clocked between the lower burner output and the upper burner output, which can take place essentially abruptly.
  • the burner burns for a first cycle time with a smaller, corresponding to the lower burner capacity burner flame circle diameter and then for a second, subsequent cycle time with a larger, the upper burner capacity corresponding burner flame circle diameter.
  • the burner is preferably operated with a continuously variable or continuously variable burner output.
  • the burner output is continuously varied between the lower burner output and the upper burner output, or the burner output oscillates between the lower burner output and the upper burner output.
  • a steplessly changing or infinitely varying burner output has the advantage that the burner flame diameter changes continuously, so that a "twitching" of the flames resulting from sudden switching or changing of the gas supply and thus an irritation of the user can be avoided.
  • the desired burner power during the cooking process changes in such a way or is changed during the cooking process such that a sinusoidal nominal burner performance time curve with the upper burner power as the maximum burner power and the lower burner output results as the minimum burner output.
  • the nominal burner power can also be varied linearly, ie almost triangular.
  • the desired burner power is changed during the cooking process such that a trapezoidal nominal burner power time course results.
  • the nominal burner output is kept constant for a short time, in particular with the lower burner output or the upper burner output.
  • the method according to the invention it is possible to heat the cooking vessel in a further inward region at one time or during a period of time, and to heat the cooking vessel in a further outward region and at another time or during another period then seen over a long period of time to distribute the heat input evenly over the cooking vessel bottom.
  • the individual cycle times or the individual time periods or the individual times in which the burner in each case with the upper or the lower burner power burns can also be different lengths or be different far apart.
  • the burner is operated with a periodically or regularly changing nominal burner output.
  • the burner output set by the user also results in the temporal average during the operation of the burner with the changing nominal burner output.
  • An increase in the energy efficiency of the gas cooking appliance in the optimization mode results in particular in that a heat storage effect of the cooking vessel bottom is utilized. While the inner portion of the cooking vessel bottom is acted upon directly by the flames of the burner with the heat input of the burner, the cooking vessel bottom in the outer region of its stored heat from the food. Accordingly, during the time in which the outer region is acted upon by the burner or its heat radiation, the stored heat of the inner region of the cooking vessel bottom is discharged. With appropriate choice of these times or periods or cycle times of the heat storage effect of the cooking vessel bottom can be optimally utilized. Periods or cycle times of 30 to 60 seconds have proven to be advantageous in this regard.
  • the lower burner output is below the burner output set by the user and the upper burner output is the set burner output or even higher.
  • the burner output set by the user is also possible to determine the burner output set by the user as the lower burner output and to determine a burner output that is greater than the set burner output for the upper burner output.
  • the method for optimizing the heat input is only performed if the set burner output is greater than a predefined minimum burner output for activation of the optimization mode.
  • the optimization mode can be activated by the user, preferably by means of a control element and control unit.
  • a control in Form of a switch for example, be provided as a touch element on the gas cooking appliance.
  • the user is informed that the optimization mode is activated or deactivated, preferably by a visual display or a display element. It is also conceivable alternatively or additionally an acoustic signal.
  • the lower burner power is determined by the set depending on the set or selected burner power burner Flamm Vietnamese bemesser is reduced by a predefined reduction factor. This reduction factor is less than one, in particular it is about 0.5. For the resulting lower burner Flamm Vietnamese bemesser the associated burner power is then determined, this burner power is then the lower burner power.
  • the upper burner output is determined by increasing the burner flame circle diameter set as a function of the set or selected burner output by a predefined increase factor.
  • the increase factor is greater than one, for example 1.5 or 2.
  • the associated burner output is determined, this burner output then being the upper burner output.
  • the cooking vessel bottom diameter of the cooking vessel arranged on the cooking position is determined in a further step.
  • the lower burner output and / or the upper burner output are then determined as a function of the determined cooking vessel bottom diameter of the cooking area arranged cooking vessel determined. In this way it is possible to selectively set or enable a uniform heat input into the cooking vessel. For this, the knowledge of the cooking vessel bottom diameter is required.
  • the term cooking vessel bottom diameter is to be understood as the maximum extent of the cooking vessel bottom in a cooking vessel bottom plane.
  • the lower burner power is determined so that the setting for the lower burner capacity minimum burner flame diameter is about one third of the cooking vessel bottom diameter of the cooking vessel arranged on the cooking vessel.
  • the inner portion of the cooking vessel slightly more than the inner third, can be selectively heated.
  • the upper burner power is determined so that the upper burner Flamm Vietnamese bemesser resulting in the upper burner power is between about 60% and 100% of the cooking vessel bottom diameter.
  • the upper burner power is selected so that the heat input is targeted in the outer region of the cooking vessel bottom, preferably in the outer half, in particular in the outer third.
  • the lower burner output and the upper burner output, and preferably the entire setpoint burner output time characteristic or the cycle times, are preferably determined in such a way that the burner delivers an average continuous output which corresponds to a mean normal operating continuous output.
  • the normal operation continuous power is the average continuous power that the burner emits for the burner output set by the user when the optimization mode is deactivated.
  • the resulting by the operation of the burner with the changing target burner power average continuous power can also be lower or higher than the normal operation continuous power, in particular in favor of an improved cooking result due to the more uniform heat input.
  • An inventive electronically controlled gas cooking appliance with at least one cooking point with an associated burner, with an electronically controlled gas valve and a control element for activating the optimization mode has a control unit which is designed to carry out a method described above.
  • the gas cooking appliance additionally has at least one aforementioned display or at least one display element.
  • Fig. 1 shows a plan view of an inventive electronically controlled gas cooking appliance 100, wherein for better understanding, individual parts are not shown according to their actual position in the gas cooking appliance 100.
  • the figure shows in detail a hob 129 with four burners 112 to 115, each with an associated burner 117 to 120.
  • the gas cooking appliance 100 has a plurality of operating elements 101, 101 a, a display 102 and a control unit 103.
  • the control unit 103 is a central control unit and controls or regulates all functions of the gas cooking appliance 100.
  • Part of this control unit 103 is an electronic gas control 107, which controls or controls an electronic gas valve 104 or all electronic gas valves of the gas cooking appliance 100.
  • Fig. 1 shows a plan view of an inventive electronically controlled gas cooking appliance 100, wherein for better understanding, individual parts are not shown according to their actual position in the gas cooking appliance 100.
  • the figure shows in detail a hob 129 with four burners 112 to 115, each with an associated burner 117 to 120.
  • the gas supply is individually controllable by means of a separate electronically controlled gas valve.
  • the example of the cooking station 114 the gas supply is shown. Via a gas supply line 105, the gas valve 104 and the gas supply line 106, the cooking station 114 is supplied with gas.
  • a defined burner flame circle diameter and thus a desired burner output with a defined heat output can be set for each of them.
  • the desired burner outputs or cooking stages for the associated Hobs 112 to 115 are set.
  • an optimization mode for a hotplate can be activated or deactivated.
  • the desired burner output of the burners 112 to 115 or the desired status of the optimization mode are transmitted from the associated control elements 101, 101 a to the control unit 103, in particular to the gas control 107.
  • this controls the gas valve 104 for the hotplate 114 such that
  • For the associated burner 119 sets a burner output according to the desired, set burner output.
  • the control unit 103 further controls the display 102.
  • the display 102 is designed so that it can output a separate signal for each of the cooking zones 112 to 115.
  • This separate signal output is realized in this embodiment by four individual light indicators 108 to 110.
  • a text field is provided, which informs the user by means of illuminated letters, for example, as "soft” or "energy-optimized", whether the optimization mode is activated or deactivated.
  • Particularly advantageous is the additional output of an acoustic signal in order to draw the attention of the user to the display device 102 or to confirm the input of the user, for example by a short beep.
  • the control unit 103 is here also designed to control the gas valves of all burners 112 to 115 such that their burners 117 to 120 each with a changing nominal burner power P SOLL , for example in a clock mode or with a continuous, sinusoidal burner power-time course, in a burner power range between a lower burner power P1 and an upper burner power P2 can be operated, see Fig. 3a to 3d .
  • a burner Flamm Vietnamese bemesser BFKD 1 and for the upper burner power P2 a larger burner flame circle diameter BFKD 2 is set, see Fig. 2 and 3a to 3d ,
  • Fig. 2 in a side view, the cooking point 113 with the burner 118, on which the cooking vessel 116 is arranged with a cooking vessel bottom diameter 122.
  • the hotplate 113 shown and the burner 118 is in flame operation with the flames 123.
  • the burner 118 burns in the embodiment shown a burner flame circle diameter BFKD 1.
  • This burner flame circle diameter BFKD 1 corresponds in the embodiment shown a set burner power P AVG_NENN , for example, the burner power, resulting in a set by the user power level 5.
  • the burner output P AVG_NENN set by the user is at the same time also the lower burner output P 1 in this exemplary embodiment.
  • the burner flame circle diameter BFKD 2 corresponds to the upper burner power P2.
  • the user activates the optimization mode by means of the operating element 101 a for the hotplate 113, this is communicated to the user via the display device 102.
  • the lower burner output P1 of the burner 118 is determined with the associated burner flame circle diameter BFKD 1 required for setting this burner output P1.
  • the upper burner power P2 is determined, the setting of which requires the burner flame circle diameter BFKD 2. If these two burner capacities determined P1 and P2 and the associated burner flame circle diameter BFKD 1 and BFKD 2 determines the burner during the cooking process with a changing nominal burner power P SOLL in a combustion power range between these two burner powers P1 and P2 and the associated determined Burner flame circle diameters BFKD 1 and BFKD 2 operated, see Fig. 3a to 3d ,
  • a desired burner power time characteristic for the cyclic operation is shown.
  • the burner is operated in a cycle T1 with the burner flame circle diameter BFKD 1 with the lower burner output P1 and in a directly following cycle T2 with the burner flame circle diameter BFKD 2 with the upper burner output P2.
  • Fig. 3b to 3d each show a desired burner power-time curve with a continuously variable target burner power P SOLL .
  • Fig. 3b is shown a linear curve of the target burner power P SOLL between the lower burner power P1 and the upper burner power P2.
  • a regular and periodic desired burner power time course is shown. This can also run non-periodically or irregularly.
  • Fig. 3c shows a sinusoidal nominal burner power timing and Fig. 3d a trapezoidal nominal burner power timing.
  • Fig. 3d are the periods of time or holding time in which the desired burner power P SOLL is kept constant and the upper burner power P2 and the lower burner output P1 corresponds clearly visible.
  • the cooking vessel bottom diameter 122 is greater than the set burner flame circle diameter BFKD 1.
  • the lower burner output P1 or the burner flame circle diameter BFKD 1 is preferably determined in such a way that, in particular, a central region of a cooking vessel bottom is heated.
  • the upper burner output P2 or the burner flame circle diameter BFKD 2 is preferably determined such that in particular an outer region of the cooking vessel 116 is heated.
  • the set burner power P AVG_NENN will preferably only be selected as lower burner output P1 when arranged on the hob 113 cooking vessel 116 is larger in each case than the corresponding burner flame circle diameter of the set burner power P AVG _ NOMINAL. However, if the cooking vessel bottom diameter 122 corresponds approximately to the burner flame diameter of the associated burner output P AVG_NENN set , the set burner output P AVG_NENN is preferably determined as the upper burner output P2 and the burner lower burner output P1 is determined to be lower than the set burner output P AVG_NENN .
  • a mean continuous power from the burner which corresponds to a mean continuous burner power P AVG_IST , which is higher or lower than the user-set burner power P AVG_NENN .
  • P AVG_IST mean continuous burner power
  • P AVG_NENN user-set burner power
  • Another possibility according to the invention is to automatically detect the size of the cooking vessel 116 or its cooking vessel bottom diameter 122. Thereafter, the determination of the lower burner power P1 and the upper burner power P2 or the nominal burner power P SOLL is preferably carried out as a function of the determined cooking vessel bottom diameter 122.
  • the gas cooking appliance 100 as shown in FIG Fig. 1 is shown schematically, a means 121 for cooking vessel detection and cooking vessel bottom diameter detection, which is also connected to the control unit 103. With this means 121 can be detected, if ever a cooking vessel arranged on the hob 112 and if yes, with which cooking vessel bottom diameter.
  • Each of the cooking zones 112 to 115 has such a means 121 for cooking vessel detection and cooking vessel bottom diameter detection, wherein it is shown for the sake of clarity only for the cooking area 112.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Regulation And Control Of Combustion (AREA)
EP11171053A 2010-06-24 2011-06-22 Procédé de fonctionnement d'un appareil de cuisson au gaz électronique et appareil de cuisson au gaz électronique Withdrawn EP2400223A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010025671 DE102010025671A1 (de) 2010-06-24 2010-06-24 Verfahren zum Betrieb eines elektronisch gesteuerten Gaskochgerätes und elektronisch gesteuertes Gaskochgerät

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Publication Number Publication Date
EP2400223A1 true EP2400223A1 (fr) 2011-12-28

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EP11171053A Withdrawn EP2400223A1 (fr) 2010-06-24 2011-06-22 Procédé de fonctionnement d'un appareil de cuisson au gaz électronique et appareil de cuisson au gaz électronique

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EP (1) EP2400223A1 (fr)
DE (1) DE102010025671A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2231397A (en) * 1989-05-09 1990-11-14 Turnright Controls Burner gas control
WO2000063620A1 (fr) * 1999-04-15 2000-10-26 Caldera Corporation Surface de cuisson au gaz et systeme de commande
DE10101733A1 (de) * 2001-01-16 2002-07-18 Bsh Bosch Siemens Hausgeraete Brennersteuerung oder -regelung
DE10355455A1 (de) * 2002-12-12 2004-10-07 BSH Bosch und Siemens Hausgeräte GmbH Gaskochstelle sowie Verfahren zum Betrieb einer Gaskochstelle
JP2008224177A (ja) * 2007-03-15 2008-09-25 Takuhei Yamamoto 加熱調理器
DE102009024236A1 (de) 2009-05-28 2010-12-02 E.G.O. Elektro-Gerätebau GmbH Gas-Kochfeld mit einer Kochfeldplatte und mindestens einer Kochstelle

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101261645B1 (ko) * 2006-12-14 2013-05-08 엘지전자 주식회사 조리기기 및 그 제어방법

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2231397A (en) * 1989-05-09 1990-11-14 Turnright Controls Burner gas control
WO2000063620A1 (fr) * 1999-04-15 2000-10-26 Caldera Corporation Surface de cuisson au gaz et systeme de commande
DE10101733A1 (de) * 2001-01-16 2002-07-18 Bsh Bosch Siemens Hausgeraete Brennersteuerung oder -regelung
DE10355455A1 (de) * 2002-12-12 2004-10-07 BSH Bosch und Siemens Hausgeräte GmbH Gaskochstelle sowie Verfahren zum Betrieb einer Gaskochstelle
JP2008224177A (ja) * 2007-03-15 2008-09-25 Takuhei Yamamoto 加熱調理器
DE102009024236A1 (de) 2009-05-28 2010-12-02 E.G.O. Elektro-Gerätebau GmbH Gas-Kochfeld mit einer Kochfeldplatte und mindestens einer Kochstelle

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Publication number Publication date
DE102010025671A1 (de) 2011-12-29

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