EP2863128A1 - Procédé de reconnaissance de casserole et champ de cuisson - Google Patents

Procédé de reconnaissance de casserole et champ de cuisson Download PDF

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Publication number
EP2863128A1
EP2863128A1 EP20140180819 EP14180819A EP2863128A1 EP 2863128 A1 EP2863128 A1 EP 2863128A1 EP 20140180819 EP20140180819 EP 20140180819 EP 14180819 A EP14180819 A EP 14180819A EP 2863128 A1 EP2863128 A1 EP 2863128A1
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EP
European Patent Office
Prior art keywords
gas
pot
gas hob
hob
thermocouple
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Withdrawn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
EP20140180819
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German (de)
English (en)
Inventor
Jörn Friedrichs
Daniel Parker
Jochen Rickert
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 EP2863128A1 publication Critical patent/EP2863128A1/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Withdrawn legal-status Critical Current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 pan detection at a gas hob of a gas hob, which has a gas burner. Likewise, the invention relates to a gas hob or a device for pot detection or for carrying out this method.
  • the invention has for its object to provide an aforementioned method and a gas hob mentioned above, with which problems of the prior art can be eliminated and in particular it is possible to implement a pot detection on a gas hob easily and reliably and practicable.
  • thermocouple is attached to the gas hob, which may also be a general temperature sensor. Of course, these must be able to withstand the prevailing temperatures.
  • thermocouple is provided per gas hob or per gas burner.
  • a thermocouple on the inner gas burner suffices on the basis of the principle of operation underlying this, as will become clear from the following description.
  • thermocouple or the temperature sensor is advantageously arranged so that it is not acted upon directly by the flames of the gas burner. This can thus be either within a circumferential ring of gas flames, for example on a burner cap of the gas burner, or with some distance to it outside. It can also a shield for the thermocouple in the manner of a sheet or the like. be provided.
  • thermocouple or temperature sensor or of the thermocouple itself by means of an electronic circuit, which is arranged on a separate or own pan detection board.
  • This pan detection board should be independent and constructively separated from any other board or control assembly of the gas hob.
  • the thermocouple as sensor or sensor is connected to this pot detection board.
  • the gas hob it may be provided that for carrying out the method according to the invention many or all functional units of the gas hob, in particular its own control or control assembly, display, gas burners or gas valves and automatic firing, communicate with each other via a said bus system.
  • the pan detection according to the invention can also be used to communicate via this bus system
  • Can be connected pot detection board in particular to represent, for example, via an already provided on the gas hob display certain operating conditions or, for example, to shut off the entire gas flow to the gas hob and cause the switching off individual gas burner.
  • the pot detection per se does not act directly on a gas valve or a general shut-off valve, but only on the general control or control assembly of the gas hob.
  • Ionization electrodes and / or ignition units can in turn be connected normally.
  • the pot detection board of pot detection can be designed so that at least one thermocouple can be connected and up to six or even eight thermocouples can be connected. For this purpose, it has a corresponding number of connections.
  • the pan detection board for pot detection including the said thermocouples or temperature sensors and an attachment device for this formed on the gas hob as a retrofit unit.
  • This can be mounted on existing gas hobs, both to certain series in their production as well as to already assembled gas hobs, for example, in a single case and already in the installed state in a kitchen.
  • this retrofit unit can also have appropriate plug connections, which are designed for certain gas hobs.
  • a limit temperature can be defined, and if the temperature detected by the thermocouple is above the limit temperature, the said accumulation heat is present and also put a pot , If the temperature is below the limit temperature, the heat accumulation is missing and the case of a non-mounted or removed pot is detected and, in particular, the gas burner is switched off.
  • a value for this limit temperature may be at some 100 ° C, for example between 50 ° C and 100 ° C to 200 ° C or even up to 300 ° C.
  • thermocouple In favorably chosen mounting location of the thermocouple or temperature sensor, the temperature difference with and without pot is very clear, especially because in non-attached or removed pot even during operation of the gas burner no accumulation heat is present or a temperature at Location of the thermocouple may be below 50 ° C or below 100 ° C, for example.
  • a connected via the bus system or the other connection with the pot detection board control or control assembly of the gas hob switches off after detecting a decrease in a pot, the gas burner of the gas hob and indicates the removal of the pot which can take place optically and / or advantageously acoustically, in particular on a corresponding display provided anyway on the gas hob. It can be provided that this switching off takes place after a defined short waiting time of a few seconds, for example two seconds to five seconds or even ten seconds. Thus, it is possible that a brief removal of a pot, for example, to fill or take something out, does not immediately lead to turning off the gas burner, which would be annoying for an operator.
  • the removal or removal of the pot is displayed very quickly or immediately, as soon as it has been recognized.
  • the switching off of the gas burner can take place with the aforementioned time delay of a few seconds. But it is also possible to do both at the same time after a few seconds.
  • the gas hob or its gas burner can continue to be operated with the previously set power or the previously set operating parameters. This enables a practical operation.
  • the waiting time elapses without reinstalling a pot on the gas hob, it or her gas burner can be turned off or at least reduced in its performance so significantly that just burned.
  • Upon renewed touchdown of the pot within a defined second waiting time which is longer than the aforementioned first waiting time and may take up to 30 seconds or even up to one minute, then after recognizing the attached pot again the previously set power or the previously set Operating parameters are resumed. This allows a waiver of a reignition of the gas burner.
  • a choice between these two options can also be made in principle in a setting menu by an operator to adapt to individual cooking styles.
  • an additional operating element may be provided, which is connected at least to the control or control assembly of the gas hob, in particular with the pan detection board, which has the following function. After repositioning the pot on the gas hob and detecting it, the previously set power or operating parameters can be easily recovered by an operator by operating the auxiliary control. This is especially true in the event that after removing the pot, the gas burner has been turned off or has been significantly reduced in its performance according to the possibility described above and at least the first waiting time has been exceeded.
  • Such an additional operating element may be a mechanically actuated push-button or switch, advantageously it is a contact switch known from the prior art.
  • the gas hob can for adjusting a power of the gas hob or the gas burner controls that are designed as a mechanically operated toggle, in particular rotatable rotary knob with a zero position and deviating power settings, in particular LIN or Gray code rotary switch.
  • the gas hob is electronically controlled or has an electronic control.
  • These rotary knobs unlike, for example, electronically controlled operating elements in the form of the aforementioned touch switches, can not simply be reset to zero.
  • the toggle for re-starting the gas hob is first moved to the zero position by an operator and then moved to a desired power position. Thus, quasi the operation of the gas burner is added.
  • the gas hob blocked is the gas hob blocked, as long as the knob is not moved to the zero position, so that in the meantime reached power positions are not implemented as a corresponding operation of the gas burner.
  • This blocking of the gas cooker can be visually and / or acoustically displayed, advantageously in the same way as a removal of the pot.
  • the achievement of the zero position as a sign of a possible renewed operation of the gas burner can be visually and / or acoustically displayed. This of course also applies to a then achieved correct setting of a power position with the knob for subsequent operation of the gas burner.
  • An aforementioned additional operating element may be provided on said gag or otherwise on the gas hob. This applies in particular if, however, mechanically operable or rotatable gags are provided, but these are evaluated electronically, that is to say preferably the mentioned LIN or Gray code rotary switches.
  • a previously set power position can be made by pressing the additional control or a new power level selected and implemented by pressing the additional control. Without an operation of this additional operating element then no reignition of the gas burner takes place. This can be displayed optically and / or acoustically.
  • the zero position and power positions do not necessarily depend on the position of the gag itself, but on an initial rotational position and, assuming this, on a change thereof rotational position. Accordingly, however, this can also be applied to the invention.
  • a further embodiment of the invention can be provided that after commissioning a gas hob with gas burner without patch pot this is turned off again, if no pot is placed within a defined initial time.
  • This start time can be between one second and ten seconds.
  • a gas hob according to the invention therefore has, in addition to a gas burner, which forms a gas hob, and a known pan support serving for placing the pot, a controller and an automatic burner control or safety devices mentioned at the outset.
  • the thermocouple or the temperature sensor is advantageously provided on a pot carrier of the gas cooking point, alternatively on a burner cap of the gas burner.
  • a gas hob 11 according to the invention is shown in section with a hob surface 12 and a gas hob 14, which is essentially formed by a gas burner 16 and a pot carrier 19.
  • the gas burner 16 has a conventional burner body 17 and a burner cap 18.
  • the pot carrier 19 has a plurality of arms. Both are known from the prior art.
  • a gas valve 23 which is connected to a main supply line 22, with which a plurality of gas valves of the gas hob 11 can be supplied.
  • a Feuerungsautomat 25 which is equipped with an ionization electrode 26 or a thermocouple for flame detection and an external ignition unit for igniting the flame.
  • a common electrode for ignition and flame detection may be present.
  • the automatic burner 25 is connected to a cooktop controller 28, which is the main controller for the gas hob 11 and corresponds to an aforementioned control assembly.
  • thermocouple 34 is now arranged as a sensor in the gas hob 14 and the gas burner 16, here on the left pot carrier 19, on the outside thereof.
  • the mounting location of the thermocouple 34 should be selected so that in all cases an overlap by an attached pot 20 is present to produce the aforementioned Stowage heat underneath.
  • the thermocouple 34 should not be acted upon directly by flames of the gas burner 16, since otherwise the effect of heating by congestion heat is negligible and a decrease in the pot 20 can not be detected.
  • the arrangement shown here on the outwardly facing side of the pot carrier 19 is carried by this a shield from the gas flames, and here is still sufficient heat storage available.
  • thermocouple 34 it is generally advantageous to secure the thermocouple 34 to the pot carrier 19 by means of thermal insulation or to prevent a pot carrier 19, which is heavily heated by long use, raising the temperature detected by the thermocouple 34 in such a way that the effect is the same as in the case of the aforementioned Presence of heat accumulation under an attached pot 20 is present.
  • thermocouple 34 An electrical connection to the thermocouple 34 is realized here by means of an electrical connection 35, which runs on or in the left pot carrier 19. Of course, this must be temperature resistant in both cases.
  • the thermocouple 34 is thus connected to a TE control 37 as an independent unit, which in Fig. 2 is shown in magnification.
  • the TE controller 37 in turn is connected via a bus connection 38 to a bus system 29 of the hob control 28.
  • the detailed structure of the TE controller 37 is off Fig. 2 to see.
  • the TE controller 37 has a developer or an independent pot detection board 39. At this six TE terminals 40 are provided, which are occupied in the present case with four thermocouples 34 together with their connection 35. Furthermore, 39 circuit components, not shown here are provided on the pot detection board 39, in particular an aforementioned electrical circuit or a microcontroller or the like ..
  • the pot detection is carried out in the manner described above, so that each case of operation of the gas burner 16 of the gas hob 14 by means of the thermocouple 34 accumulation heat is present at a temperature above the aforementioned limit temperature, which may be here at 100 ° C.
  • a control element which differs from the Fig. 1 only consists of a touch switch.
  • a pot which is then removed.
  • This Topfwegddling recognizes the thermocouple 34 and thus the TE control 37 and are available via the bus system 29 to the hob control 28 on.
  • the TE controller 37 shuts off or closes the gas valve 23 via the connection of the bus system 29, possibly after a delay time mentioned at the outset.
  • a visual and / or acoustic feedback to an operator via a signal generator 33, which is advantageously an acoustic signal generator.
  • the gas hob 14 in the cooktop controller 28 is reduced in performance or set to zero. If then the gas burner 16 are put into operation again, this can be done by selecting a power by means of the control.
  • Fig. 4 is described in a similar manner as the operation in the presence of the rotary knob 30 according to Fig. 1 and runs without an additional control.
  • the removal of the pot 20 is detected and the gas burner 16 is turned off by closing the gas valve 23, triggered by the TE controller 37.
  • the set via the rotary knob 30 to the hob control 28 power is maintained, at the same time just the gas hob 14 is locked or turned off.
  • the signal generator 33 may be an optical signal transmitter in this case and display this state by lighting or flashing, alternatively, a corresponding display is possible on a display of the gas hob 11.
  • the gas burner 16 is operated again with this new power.
  • a pot 20 should be put on again. If this is not the case, the gas burner 16 may indeed start, but after a few seconds just be switched off again, since it is recognized via the thermocouple 34 and the TE controller 37 that no pot is placed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)
  • Regulation And Control Of Combustion (AREA)
EP20140180819 2013-09-12 2014-08-13 Procédé de reconnaissance de casserole et champ de cuisson Withdrawn EP2863128A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201310218339 DE102013218339A1 (de) 2013-09-12 2013-09-12 Verfahren zur Topferkennung und Gaskochfeld

Publications (1)

Publication Number Publication Date
EP2863128A1 true EP2863128A1 (fr) 2015-04-22

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EP20140180819 Withdrawn EP2863128A1 (fr) 2013-09-12 2014-08-13 Procédé de reconnaissance de casserole et champ de cuisson

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EP (1) EP2863128A1 (fr)
CN (1) CN204329081U (fr)
DE (1) DE102013218339A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2998654A1 (fr) * 2014-09-18 2016-03-23 E.G.O. ELEKTRO-GERÄTEBAU GmbH Procede de reconnaissance de casserole et plaque de cuisson
CN109323873A (zh) * 2017-07-31 2019-02-12 宁波方太厨具有限公司 一种燃气灶具尖锅效率测试装置及其测试方法
US11357080B2 (en) 2019-09-30 2022-06-07 Midea Group Co., Ltd. Cooking container sensing for ignition triggering and programmed cooking

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106524239A (zh) * 2015-09-10 2017-03-22 台湾樱花股份有限公司 瓦斯炉的离锅监控装置及离锅监控方法
EP3147566B1 (fr) * 2015-09-22 2020-05-06 Electrolux Appliances Aktiebolag Système de brûleur à gaz pour une cuisinière à gaz avec un thermocouple et procédé pour déterminer si un ustensile de cuisson est placé sur le brûleur à gaz.
CN110207157A (zh) * 2018-10-18 2019-09-06 华帝股份有限公司 离锅检测装置、灶具及其控制方法
CN109798552B (zh) * 2018-12-30 2020-12-29 佛山市顺德区美的洗涤电器制造有限公司 一种灶具离锅判定方法和装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4218278A1 (de) * 1992-06-03 1993-12-09 Seppelfricke Geb Gmbh Vorrichtung zur Sicherung eines Gaskochstellenbrenners
EP0788293A2 (fr) 1996-02-05 1997-08-06 E.G.O. ELEKTRO-GERÄTEBAU GmbH Radiateur électrique avec un capteur actif pour la détection d'un récipient de cuisson
US20020130190A1 (en) * 1999-10-14 2002-09-19 Andreas Marbach Gas cooktop and vessel for the cooktop
US6462316B1 (en) * 2000-10-10 2002-10-08 General Electric Company Cooktop control and monitoring system including detecting properties of a utensil and its contents
JP2005077041A (ja) * 2003-09-02 2005-03-24 Rinnai Corp ガスコンロ
JP2005291560A (ja) * 2004-03-31 2005-10-20 Osaka Gas Co Ltd コンロ
DE102009014570A1 (de) * 2009-03-17 2010-09-23 E.G.O. Elektro-Gerätebau GmbH Verfahren zur Steuerung einer Kochstelle eines Gasherdes sowie Vorrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4218278A1 (de) * 1992-06-03 1993-12-09 Seppelfricke Geb Gmbh Vorrichtung zur Sicherung eines Gaskochstellenbrenners
EP0788293A2 (fr) 1996-02-05 1997-08-06 E.G.O. ELEKTRO-GERÄTEBAU GmbH Radiateur électrique avec un capteur actif pour la détection d'un récipient de cuisson
US20020130190A1 (en) * 1999-10-14 2002-09-19 Andreas Marbach Gas cooktop and vessel for the cooktop
US6462316B1 (en) * 2000-10-10 2002-10-08 General Electric Company Cooktop control and monitoring system including detecting properties of a utensil and its contents
JP2005077041A (ja) * 2003-09-02 2005-03-24 Rinnai Corp ガスコンロ
JP2005291560A (ja) * 2004-03-31 2005-10-20 Osaka Gas Co Ltd コンロ
DE102009014570A1 (de) * 2009-03-17 2010-09-23 E.G.O. Elektro-Gerätebau GmbH Verfahren zur Steuerung einer Kochstelle eines Gasherdes sowie Vorrichtung

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2998654A1 (fr) * 2014-09-18 2016-03-23 E.G.O. ELEKTRO-GERÄTEBAU GmbH Procede de reconnaissance de casserole et plaque de cuisson
US9909763B2 (en) 2014-09-18 2018-03-06 E.G.O. Elektro-Geraetebau Gmbh Method of pot detection and gas hob
CN109323873A (zh) * 2017-07-31 2019-02-12 宁波方太厨具有限公司 一种燃气灶具尖锅效率测试装置及其测试方法
CN109323873B (zh) * 2017-07-31 2024-04-02 宁波方太厨具有限公司 一种燃气灶具尖锅效率测试装置及其测试方法
US11357080B2 (en) 2019-09-30 2022-06-07 Midea Group Co., Ltd. Cooking container sensing for ignition triggering and programmed cooking

Also Published As

Publication number Publication date
CN204329081U (zh) 2015-05-13
DE102013218339A1 (de) 2015-03-12

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