EP2230461A2 - Procédé et dispositif de commande d'un brûleur à gaz ou d'une gazinière - Google Patents

Procédé et dispositif de commande d'un brûleur à gaz ou d'une gazinière Download PDF

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Publication number
EP2230461A2
EP2230461A2 EP10156353A EP10156353A EP2230461A2 EP 2230461 A2 EP2230461 A2 EP 2230461A2 EP 10156353 A EP10156353 A EP 10156353A EP 10156353 A EP10156353 A EP 10156353A EP 2230461 A2 EP2230461 A2 EP 2230461A2
Authority
EP
European Patent Office
Prior art keywords
gas
burner
control element
gas burner
touch
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Withdrawn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
EP10156353A
Other languages
German (de)
English (en)
Other versions
EP2230461A3 (fr
Inventor
Martin Baier
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 EP2230461A2 publication Critical patent/EP2230461A2/fr
Publication of EP2230461A3 publication Critical patent/EP2230461A3/fr
Withdrawn legal-status Critical Current

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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
    • 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 controlling a gas burner and a device suitable for carrying out this method.
  • an associated operating element is usually detected at the beginning of the firing process and rotated as far as it corresponds to a desired burner output or power level.
  • An ignition of the gas flame on the gas burner is automatically effected either by a separate ignition button or, especially in newer gas burners, by closing an electrical contact on the gas tap.
  • the single selected gas burner is ignited or all gas burners are ignited together via an ignition module and only the one who is supplied with gas begins to burn. The flame then burns a little later, for example, one to three seconds later, because only then enough gas is available for the flame.
  • Delay may be possible because the amount of gas discharged increases with the burner power set , This delay is disadvantageous, among other things, because possibly more sparks must be activated and an operator could instinctively suspect a malfunction or the ignition noises as disturbing.
  • the invention has for its object to provide an aforementioned method and a corresponding device with which disadvantages of the prior art can be avoided and in particular a comfortable and fast starting of the firing process at the gas burner with adjusted burner power can be made.
  • a combustion process on the gas burner is started, stopped and a burner output is adjusted by means of an associated operating element.
  • a starting operation of the control element is detected as such and then the gas burner with a minimum amount of gas with time restriction, which ensures compliance with safety requirements, omitted or released at the gas burner.
  • This can a time limit of a few seconds, for example up to five or even ten seconds.
  • actuating the operating element for example by turning in a rotary control element, to set the burner power
  • a starting of the gas supply in accordance with the set burner power causes.
  • the gas burner is ignited in the usual manner. This is done in most cases by a specified spark.
  • a touch of the operating element with one hand causes the omission of said minimum amount of gas.
  • the touch of the operating element can be detected by means of a touch sensor on the operating element.
  • this touch sensor is designed so that it works without mechanical switching path, so is not a mechanical switch. It is particularly advantageous to use a capacitive touch sensor, as it is for example the one explicitly referred to EP 1775650 generally known for operating devices.
  • a control element may have such a touch sensor in the form that it is arranged on the outer circumference of an operating element, in particular if it is designed for rotary actuation and has a so-called rotary knob.
  • this touch sensor can occupy a substantial part of the outer circumference, in particular covering the entire outer circumference. This ensures that the touch can be recognized and used as such at any gripping the control element on the outer circumference.
  • a touch sensor can also be provided on a front side of the operating element.
  • a proximity sensor may be provided, which is either arranged on the control element itself and then advantageously also works capacitively. It can be set or controlled so that it recognizes an approach to a few centimeters as such and then causes the omission of the minimum amount of gas.
  • a capacitive operating principle can be used.
  • the proximity sensor can be arranged close to the operating element on the gas stove, for example on a control panel directly next to the operating element.
  • proximity sensors can either also be designed as capacitive or, for example, as a reflex photoelectric sensor, as is basically very similar to the DE 102007057076 A1 the same applicant is known.
  • the minimum amount of gas can be omitted when the operation of the control element begins. This can be evaluated accordingly by a controller.
  • the operating element is an electronic code switch, that is, it does not mechanically control the gas supply directly. This is advantageously possible especially in connection with electronic gas valves.
  • ignition of the gas burner is effected when this operation or movement is interrupted for at least one second is different at a burner power that is different from zero is.
  • This can be effected that after this waiting time of one second, which may also be shorter, the burner power is considered to be fixed and then just the ignition of the gas burner is made by the spark.
  • it can be provided that generally after a certain period of time, for example two seconds or three seconds, after touching or starting the actuation of the control element, the gas burner is ignited. Then, even in the case that an operator takes a little longer to decide to set a burner output, the gas burner is already ignited. However, it is considered advantageous to await completion of the adjustment process.
  • the minimum amount of gas that is released just after approaching the operating element, touch or actuation of the control element both a quantitative and a temporal limitation has.
  • the stated time limitation may be, for example, a maximum of five seconds, in particular a maximum of three seconds. This results in a quantitative restriction.
  • a quantitative restriction can be provided in that the gas valve of the gas burner is only opened a certain distance, so that, for example, after two seconds outflow of gas already sufficient gas for igniting the gas burner after starting the spark is present.
  • the approximate or touched operating element can also be marked or illuminated with an optical display.
  • the corresponding gas burner or the associated hotplate can be visually displayed, in particular by lighting, for example by lighting from below. This can be done through a cooktop panel of the gas range, either directly through it when it is translucent, or through appropriate light passages.
  • FIG. 1 an oblique view of a gas hob 11 is shown on a gas stove 12.
  • the gas hob 11 has a hob plate 14, for example made of glass ceramic, with four distributed cooking zones 15a-d, each with a gas burner 16a-d, as is known from the prior art.
  • a front panel 17 is provided, under which an oven is arranged, is not discussed in detail.
  • control knob 19a-d are provided.
  • the control knob 19a is the hotplate 15a associated with their operation or their power setting. This also applies to the other hobs and the other control knob.
  • the control knob 19a the hotplate 15a and its gas burner 16a can be operated, that is switched on and adjusted in their power level.
  • a first aspect of the invention is in Fig. 2 a schematic section through a front panel 17 according to Fig. 1 shown.
  • the control knob 19 is seated on an axis of rotation 21, which extends through the otherwise closed front panel 17 to a per se conventional power control unit 22.
  • the power control unit 22 may be a so-called electronic code switch, which electronically detects a rotation or a rotation angle and converts it into a signal for controlling the gas burner 16 with a corresponding burner output.
  • it does not act directly on a gas valve 35 on a gas line 36.
  • This is known from the prior art, see for example the WO 2006/090271 A1 or the DE 102008039801.2 ,
  • a proximity sensor 27 is provided on the front panel 17 with effective direction in an area in front of the front panel 17.
  • This proximity sensor 27 is connected to a controller 25, which, as shown here, is also connected to the power control unit 22. Furthermore, the controller 25 is connected to the gas valve 35 to the gas line 36 and an igniter 38, which will be discussed in more detail later.
  • the proximity sensor 27 is known per se from the prior art and can be designed, for example, as a so-called reflection light barrier. In this respect, it can, as indicated, emit light, advantageously with a transmitter in the IR range, so that the light does not bother. If now a hand 29 is brought close to the control knob 19, for example at a predefined distance, for example 5 cm-10 cm, light is reflected by it. This in turn can detect the proximity sensor 27 together with the controller 25. This is then evaluated by the controller as an approximation and intended operation and the gas valve 35 starts to omit the aforementioned amount of gas at this control knob 19 associated cooking point or the gas burner 16 so that ignition by means of the ignition device 38 takes place as immediately as possible a sufficient amount of gas is present.
  • the distance from the control knob 19 and the front panel 17, in which the proximity sensor 27 detects the hand 29 It must be recognized above all, which of the control knob 19 exactly the hand 29 approaches.
  • per Probes 19 usually provide such a proximity sensor 27 or they must be able to distinguish between the various control knobs. You can of course also in the front panel 17 or sunk or arranged behind it Alternatively, for example, over the leftmost control knob 19a and the rightmost control knob 19d, two similar proximity sensors may be provided. By a kind funnelpeilung can be detected, which control knob 19, the hand 29 approaches.
  • a distance of significantly more than 10 cm makes for the detection of a targeted approach to a control knob 19 actually no sense, since the direction of approach can basically also be oblique to the front panel 17.
  • An activation of a display means should take place only when it can be reliably recognized to which control knob 19 a hand 29 actually approaches.
  • the recognized approach of the hand 29 to the control knob 19 leads just to the fact that the control 25 via the activation of the gas valve 35 on the gas line 36, the aforementioned gas quantity at the gas burner 16 leaves or activates.
  • This amount of gas can be such that after one or two seconds, for example, enough gas is present so that a stable gas flame burns on the ignition device 38 by means of the control 25.
  • the gas supply the gas valve 35 is in turn throttled slightly. The gas supply should always be so far that at any time an immediate ignition is possible. However, the initially slightly increased opening of the gas valve can be taken back a bit, since a certain amount of gas is already present. So the security can be further increased.
  • the controller 25 after a certain time, for example, five seconds or ten seconds, when the hand is still on the control knob 19 or he is still moving, the gas valve 35 closes again.
  • a corresponding optical or acoustic signal can be output to alert the operator to this unforeseen or critical condition.
  • ignition could again occur to burn off the exiting gas. If an operator did not want to perform any power adjustment, she will return the control knob to the neutral position, which in turn shuts off the gas supply. Then no spark occurs.
  • a capacitive touch sensor 127 is provided directly on the control knob 119.
  • This touch sensor 127 is advantageously made of metal, such as stainless steel, or is electrically conductive and forms at least the front part of the control knob 119, which is usually touched, or even the entire top.
  • Such a control knob is for example in a similar form from the DE 20 2005 019 978 U1 known.
  • a proximity sensor can also be constructed with such a capacitive sensor, since the capacitive coupling between the sensor and the hand also bridges a distance of a few cm through the air. An approximation can therefore be recognized at this distance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Control Of Combustion (AREA)
  • Regulation And Control Of Combustion (AREA)
EP10156353A 2009-03-17 2010-03-12 Procédé et dispositif de commande d'un brûleur à gaz ou d'une gazinière Withdrawn EP2230461A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009014568A DE102009014568A1 (de) 2009-03-17 2009-03-17 Verfahren und Vorrichtung zur Steuerung eines Gasbrenners bzw. Gasherdes

Publications (2)

Publication Number Publication Date
EP2230461A2 true EP2230461A2 (fr) 2010-09-22
EP2230461A3 EP2230461A3 (fr) 2011-06-15

Family

ID=42315724

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10156353A Withdrawn EP2230461A3 (fr) 2009-03-17 2010-03-12 Procédé et dispositif de commande d'un brûleur à gaz ou d'une gazinière

Country Status (2)

Country Link
EP (1) EP2230461A3 (fr)
DE (1) DE102009014568A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014152957A1 (fr) * 2013-03-14 2014-09-25 Golomb Mercantile Company Llc Brûleur de sécurité avec arrêt automatique
US11255460B2 (en) 2019-09-30 2022-02-22 Midea Group Co., Ltd. Two-step turn on for digital gas valves
US11402102B2 (en) 2019-09-30 2022-08-02 Midea Group Co., Ltd. User-configurable two-step activation sequence for gas cooktop burner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1183036B (de) 1962-11-29 1964-12-10 Junkers & Co Langsamzuendeinrichtung fuer gasbeheizte Geraete, insbesondere Umlauf-Wassererhitzer
DE2164070A1 (de) * 1971-02-03 1972-08-10 Vaillant Joh Kg Drehgasschalter mit thermoelektrischer Zündsicherung
EP1222429A1 (fr) * 1999-10-18 2002-07-17 Pierre Repper Commande electronique de surface de cuisson au gaz comportant un systeme de mijotage, et procede d'utilisation
US20050229918A1 (en) * 2004-04-19 2005-10-20 Youngtack Shim Grill safety systems and methods

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8813959D0 (en) * 1988-06-13 1988-07-20 Parkinson Cowan Appliances Ltd Improvements relating to cooking appliances
ITMI20050244A1 (it) 2005-02-18 2006-08-19 A C Di Amati Carlo E C S A S Gruppo di controllo per forni a gas
DE202005019978U1 (de) 2005-10-12 2006-04-20 E.G.O. Elektro-Gerätebau GmbH Bedienvorrichtung für ein Elektrogerät
DE102007057076B4 (de) 2007-11-21 2012-03-29 E.G.O. Elektro-Gerätebau GmbH Kochfeld und Verfahren zum Betrieb eines Kochfeldes
DE102008039801B3 (de) 2008-08-14 2010-06-17 E.G.O. Elektro-Gerätebau GmbH Gassteuerungssystem sowie Verfahren zur Steuerung einer Gaszufuhr

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1183036B (de) 1962-11-29 1964-12-10 Junkers & Co Langsamzuendeinrichtung fuer gasbeheizte Geraete, insbesondere Umlauf-Wassererhitzer
DE2164070A1 (de) * 1971-02-03 1972-08-10 Vaillant Joh Kg Drehgasschalter mit thermoelektrischer Zündsicherung
EP1222429A1 (fr) * 1999-10-18 2002-07-17 Pierre Repper Commande electronique de surface de cuisson au gaz comportant un systeme de mijotage, et procede d'utilisation
US20050229918A1 (en) * 2004-04-19 2005-10-20 Youngtack Shim Grill safety systems and methods

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014152957A1 (fr) * 2013-03-14 2014-09-25 Golomb Mercantile Company Llc Brûleur de sécurité avec arrêt automatique
US9638426B2 (en) 2013-03-14 2017-05-02 Golomb Mercantile Company, LLC Safety burner system with automatic shut-off
US10344984B2 (en) 2013-03-14 2019-07-09 Golomb Applied Sciences Llc Safety burner system with automatic shut-off
US11255460B2 (en) 2019-09-30 2022-02-22 Midea Group Co., Ltd. Two-step turn on for digital gas valves
US11402102B2 (en) 2019-09-30 2022-08-02 Midea Group Co., Ltd. User-configurable two-step activation sequence for gas cooktop burner
US11619321B2 (en) 2019-09-30 2023-04-04 Midea Group Co., Ltd. Two-step turn on for digital gas valves
US11927278B2 (en) 2019-09-30 2024-03-12 Midea Group Co., Ltd. Two-step turn on for digital gas valves

Also Published As

Publication number Publication date
EP2230461A3 (fr) 2011-06-15
DE102009014568A1 (de) 2010-09-23

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