EP1657491B1 - Table de cuisson à gaz - Google Patents

Table de cuisson à gaz Download PDF

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Publication number
EP1657491B1
EP1657491B1 EP05110282A EP05110282A EP1657491B1 EP 1657491 B1 EP1657491 B1 EP 1657491B1 EP 05110282 A EP05110282 A EP 05110282A EP 05110282 A EP05110282 A EP 05110282A EP 1657491 B1 EP1657491 B1 EP 1657491B1
Authority
EP
European Patent Office
Prior art keywords
gas
control device
hob according
cooker hob
gas cooker
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.)
Not-in-force
Application number
EP05110282A
Other languages
German (de)
English (en)
Other versions
EP1657491A2 (fr
EP1657491A3 (fr
Inventor
Emilio Placer Maruri
Pedro Herrera Estrada
Jose Leon Garcia
Luis Antonio Palacios Valdueza
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 EP1657491A2 publication Critical patent/EP1657491A2/fr
Publication of EP1657491A3 publication Critical patent/EP1657491A3/fr
Application granted granted Critical
Publication of EP1657491B1 publication Critical patent/EP1657491B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/022—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
    • F23N5/102—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/12—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods
    • F23N5/123—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using ionisation-sensitive elements, i.e. flame rods using electronic means
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/32—Igniting for a predetermined number of cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/36—Spark ignition, e.g. by means of a high voltage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/16—Fuel valves variable flow or proportional valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/24—Valve details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2241/00—Applications
    • F23N2241/08—Household apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples

Definitions

  • the invention relates to a gas hob with at least one gas tap for a gas burner and a control device, which is associated with an electrical switch which generates an operating signal in the control device during a pressure or rotary actuation of the gas cock.
  • Such a gas hob is off FR2761459 known.
  • a generic device for securing a gas burner has an electromagnet (magnetic insert) arranged in a gas tap. Its necessary holding current for opening the solenoid valve during gas combustion is transmitted by an electronic control device to the electromagnet.
  • the control device is associated with a microswitch or a position sensor which detects a pressure actuation of a tap axis of the gas tap. If the tap axis is pressed once at the beginning of a gas hob operation, the pressure actuation of the tap axis is detected by the microswitch, which sends an opening signal to the control device. By means of the pressed-in valve axis, a valve stem of the magnetic insert is brought into its open position. The control device supplies the magnetic insert with a holding current in response to the opening signal of the position sensor and controls an ignition electrode for flame ignition at the gas burner accordingly.
  • the publication CH 122180 discloses an ignition device for a gas burner in which a contact of an ignition switch arranged on the gas valve is connected to the device ground.
  • the object of the present invention is to provide a gas hob in which a reliable operation is permanently possible in a simple manner.
  • claim 1 is designed as a position sensor electrical switch via at least one ground terminal to the control device in electrical connection.
  • the electrical connection between the control device and switch is therefore at least partially reached via ground connections. This simplifies the construction of the switch because the number of signal lines between the control device and the switch is reduced.
  • control device and the electrical switch are connected in series.
  • the electrical switch can be connected via a signal line to a first electrical connection of the control device.
  • the switch is arranged according to the invention within a housing of a solenoid valve.
  • the solenoid valve may be provided as a conventional safety valve to interrupt a gas supply if a flame on the gas burner extinguishes.
  • the solenoid valve when the solenoid valve is designed in the sense of a component reduction within the gas tap is particularly advantageous.
  • the solenoid valve can be brought by means of the valve axis in an open position in which a gas path is opened to the gas burner.
  • control device can be assigned an ignition electrode for flame ignition on the gas burner.
  • the controller in response to an opening signal of the position sensor, the controller may drive the ignition electrode for flame ignition.
  • the solenoid valve may have a so-called magnetic insert, which in the gas tap can be mounted.
  • the magnetic insert has a housing in which a valve stem is guided displaceably.
  • the valve stem can be held in its open position by means of an electromagnetically generated holding force.
  • FIG. 1 is shown in a schematic representation of a gas hob with a gas burner 1 according to the first embodiment.
  • a gas tap 7 is arranged for gas flow control.
  • the gas tap 7 has a tap axis 9, which can be actuated via an actuating knob 11.
  • an electromagnetic safety valve 13 is integrated in the gas tap, which interrupts a gas path 15 within the gas tap 7 in its de-energized state.
  • the solenoid valve 13 has a magnetic insert 17 which is inserted into a corresponding receiving opening 19 of the gas tap.
  • a valve stem 23 is slidably guided with its armature 25.
  • the valve stem 23 has a valve plate 27.
  • the valve plate 27 is pressed by means of a return spring 29 into contact with a valve seat 31.
  • the gas path 15 is interrupted within the gas tap 7.
  • the magnetic insert 17 of the solenoid valve 13 is connected via a first signal line 33 to an electrical control device 35 in connection.
  • the electrical control device 35 is connected to an ignition electrode 37 for flame ignition at the gas burner 1 in connection.
  • valve stem 23 is electrically grounded via a first ground terminal 41.
  • the control device 35 is electrically grounded via a second ground terminal 43, while the gas burner is earthed via a third ground terminal 45.
  • the control device 35 is supplied with power via mains connections 47.
  • the rotary knob 11 of the gas tap 7 is to be pressed in the direction of arrow I.
  • the valve shaft 9 moves the valve stem 23 of the magnetic insert 17 in an open position.
  • the leading through the gas valve 7 gas path 15 is opened.
  • the armature 25 of the valve stem 23 is in contact with the two counter-anchors 51 for the solenoid coils 53.
  • the counter-anchors 51 are arranged inside the magnet insert housing 21.
  • the magnetic insert 17 of the solenoid valve is shown in an enlarged view.
  • the valve stem 23 as in the FIG. 1 , shown in its closed position.
  • the control device 35 is connected via the signal line 33 in series with the first solenoid valve coils 55 and the second solenoid coil 57.
  • a connection end 59 of the solenoid coil 57 is arranged between the two counter-anchors 51.
  • the connection end 59 extends in a gap 61 between the two counter-anchors 51 in the direction of the armature 25 of the valve stem 23.
  • the armature 25 of the valve stem 23 serves as an electrical switch which closes a signal circuit S in contact with the terminal end 59.
  • the electrical control device 35 In the signal circuit S are in series, the electrical control device 35, the first and second solenoid coil 55, 57, the connection end 59th of the valve stem 25 with its armature 25 is connected.
  • the valve stem 23 is in electrical connection with the control device 35, which is also grounded via the second grounding connection 43, via the first earth connection 41 of the gas tap.
  • the gas burner 1 is assigned a thermocouple 63 for flame detection.
  • the thermocouple 63 is connected in a thermal power circuit T, and connected via lines 32 to the magnetic insert 17.
  • the thermocouple 63 is heated by the flames.
  • the thermocouple 63 generates a thermal current.
  • a magnetic holding force is generated in the solenoid valve coils 55, 57 of the magnetic insert 17, which holds the armature 25 of the valve stem 23 in its open position.
  • the electrical switch is not formed by components 23, 59 of the magnetic insert 17. Rather, the electrical switch according to the second embodiment, two switching elements 65, 67 on.
  • the first switching element 65 is fixedly arranged on a cover 69 of the gas tap 7.
  • the second switching element 67 of the switch is formed on the tap axis 9 of the gas tap 7.
  • the two switching elements 65 and 67 come into contact. As a result, the signal circuit S is closed.
  • a signal current from a first terminal 71 of the control device 35 via the closed electrical switch 65, 67, the ground terminal 41 of the gas tap 7 and the ground terminal 43 of the control device 35 back into the Control device 35 flow.
  • the ignition electrode 37 is driven to flame ignition in response to the signal current.
  • the signal current can advantageously already flow in a particularly low current, about 1 ⁇ A or less.
  • the electrical control device 35, the first switching element 65, the second switching element 67, the grounding connection 41 of the gas tap 7, the grounding connection 43 of the control device 35 are connected in series.
  • the ignition electrode 37 is designed such that it can monitor extinction of the gas flame at the burner. In the case of extinction of the gas flame at the burner 1, a corresponding drop in temperature at the ignition electrode 37 is detected forwarded to the control device. In response to the detected signal, the electronic controller drives the ignition electrode 37 to cause re-ignition of the flame. If this reignition of the gas within a predetermined time interval or after a number of predetermined sparks does not occur, interrupts the electrical control device 35, the signal circuit S. This breaks the magnetic holding force of the solenoid coils 55, 57 of the magnetic insert 17, whereby the valve stem 23 returns to its closed position.

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)
  • Regulation And Control Of Combustion (AREA)
  • Gas Burners (AREA)

Claims (13)

  1. Plaque de cuisson à gaz comprenant au moins un robinet à gaz (7) pour un brûleur à gaz (1) et un dispositif de commande (35) auquel est attribué un commutateur électrique (23, 59) qui génère un signal de fonctionnement dans le dispositif de commande (35) lors d'un actionnement de pression ou de rotation du robinet à gaz (7), une électrovanne magnétique (13) destinée à ouvrir ou fermer une voie du gaz (15) vers le brûleur à gaz (1) étant attribuée au dispositif de commande (35), caractérisée en ce que le commutateur électrique (23, 59) est réalisé à l'intérieur d'une boîte (21) de l'électrovanne magnétique (13) et en ce que le commutateur électrique (23, 59) est en connexion électrique avec le dispositif de commande (35) par l'intermédiaire d'au moins un raccord de mise à la terre (41, 43).
  2. Plaque de cuisson à gaz selon la revendication 1, caractérisée en ce que le dispositif de commande (35) et le commutateur électrique (23, 59) sont connectés en série dans un circuit de signalisation (S).
  3. Plaque de cuisson à gaz selon la revendication 1 ou 2, caractérisée en ce que le commutateur électrique (23, 59) est connecté à un premier raccord électrique (71) du dispositif de commande (35) par l'intermédiaire d'une ligne de signalisation (33).
  4. Plaque de cuisson à gaz selon l'une quelconque des revendications précédentes, caractérisée en ce que le commutateur électrique (23, 59) présente un premier élément de commutation (23) et un second élément de commutation (59) qui ferment le commutateur électrique lors d'un contact.
  5. Plaque de cuisson à gaz selon l'une quelconque des revendications précédentes, caractérisée en ce qu'un courant continu ayant une intensité de courant de notamment 1 µA ou moins circule entre le dispositif de commande (35) et le commutateur électrique (23, 59).
  6. Plaque de cuisson à gaz selon l'une quelconque des revendications précédentes, caractérisée en ce que le dispositif de commande (35) ouvre l'électrovanne magnétique (13) lorsque le signal de fonctionnement est généré.
  7. Plaque de cuisson à gaz selon l'une quelconque des revendications précédentes, caractérisée en ce que l'électrovanne magnétique (13) est réalisée dans le robinet à gaz (7).
  8. Plaque de cuisson à gaz selon l'une quelconque des revendications précédentes, caractérisée en ce que l'axe (9) du robinet à gaz (7) amène l'électrovanne magnétique (13) dans une position d'ouverture lors d'un actionnement de pression (I).
  9. Plaque de cuisson à gaz selon l'une quelconque des revendications précédentes, caractérisée en ce qu'une électrode d'allumage (37) est réalisée pour le dispositif de commande (35).
  10. Plaque de cuisson à gaz selon l'une quelconque des revendications précédentes, caractérisée en ce qu'en réponse au signal de fonctionnement généré, le dispositif de commande (35) commande l'électrode d'allumage (37) pour un allumage de flamme.
  11. Plaque de cuisson à gaz selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le premier élément de commutation est un poussoir de vanne (23) de l'électrovanne magnétique (13), lequel, lors d'un actionnement de pression (I) du robinet à gaz (7), vient en contact avec le second élément de commutation réalisé en tant que terminaison de raccordement (59).
  12. Plaque de cuisson à gaz selon la revendication 11, caractérisée en ce que le poussoir de vanne (23) est mis à la terre électriquement au moyen du robinet à gaz (7) par l'intermédiaire d'un premier raccord de mise à la terre (41).
  13. Plaque de cuisson à gaz selon la revendication 11 ou 12, caractérisée en ce que la terminaison de raccordement (59) est en connexion électrique avec le dispositif de commande (35) par l'intermédiaire de la ligne de signalisation (33).
EP05110282A 2004-11-10 2005-11-03 Table de cuisson à gaz Not-in-force EP1657491B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200402785A ES2258911B1 (es) 2004-11-10 2004-11-10 Placa de cocina de gas.

Publications (3)

Publication Number Publication Date
EP1657491A2 EP1657491A2 (fr) 2006-05-17
EP1657491A3 EP1657491A3 (fr) 2010-09-01
EP1657491B1 true EP1657491B1 (fr) 2012-03-21

Family

ID=35781328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05110282A Not-in-force EP1657491B1 (fr) 2004-11-10 2005-11-03 Table de cuisson à gaz

Country Status (3)

Country Link
EP (1) EP1657491B1 (fr)
AT (1) ATE550606T1 (fr)
ES (2) ES2258911B1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2391516B1 (es) * 2005-02-28 2013-10-04 Bsh Electrodomésticos España, S.A. Aparato de gas, en particular un fuego de una cocina de gas.
ES2291084B1 (es) * 2005-08-05 2008-10-16 Bsh Electrodomesticos España, S.A. Placa de cocina de gas.
ES2291083B1 (es) * 2005-08-05 2008-10-16 Bsh Electrodomesticos España, S.A. Placa de cocina de gas.
TWM340421U (en) * 2007-10-23 2008-09-11 wen-zhou Chen Combustion device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH122180A (fr) * 1926-09-13 1927-10-17 Beguelin Andre Installation d'allumage électrique pour appareils à gaz.
FR1580257A (fr) * 1968-06-06 1969-09-05
US4147494A (en) * 1976-04-14 1979-04-03 Howa Sangyo Kabushiki Kaisha Gas burner ignition device
DE2917584A1 (de) * 1978-05-31 1979-12-13 Main Gas Appliances Ltd Automatischer gasbrenner
US4521180A (en) * 1982-11-29 1985-06-04 Kidde, Inc. Laboratory burner apparatus
FR2604510B3 (fr) * 1986-09-26 1988-11-18 Cramer Gmbh & Co Kg Cuisiniere a gaz comportant un bruleur de cuisson situe au-dessous d'une plaque de vitrocerame
FR2758179A1 (fr) * 1997-01-07 1998-07-10 Eaton Sa Monaco Dispositif de surveillance et de securite pour appareil de cuisson ou de chauffage a gaz
FR2761459B1 (fr) * 1997-03-28 1999-06-18 Gaz De France Systeme de securite pour bruleurs d'appareil de cuisson
DE19825846A1 (de) * 1998-06-10 1999-12-16 Agt Gas Technology Gmbh Vorrichtung zum Sichern einer Gasbrennstelle
US6666676B2 (en) * 2000-08-17 2003-12-23 Comercial Acros Whirlpool S.A. De C.V. Programmable burner for gas stoves

Also Published As

Publication number Publication date
ES2258911A1 (es) 2006-09-01
EP1657491A2 (fr) 2006-05-17
EP1657491A3 (fr) 2010-09-01
ES2258911B1 (es) 2007-06-01
ES2381115T3 (es) 2012-05-23
ATE550606T1 (de) 2012-04-15

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