EP1657492B1 - Table de cuisson avec un robinet du gaz - Google Patents

Table de cuisson avec un robinet du gaz Download PDF

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Publication number
EP1657492B1
EP1657492B1 EP05110103A EP05110103A EP1657492B1 EP 1657492 B1 EP1657492 B1 EP 1657492B1 EP 05110103 A EP05110103 A EP 05110103A EP 05110103 A EP05110103 A EP 05110103A EP 1657492 B1 EP1657492 B1 EP 1657492B1
Authority
EP
European Patent Office
Prior art keywords
gas
control device
cock
hob according
cooker hob
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
EP05110103A
Other languages
German (de)
English (en)
Other versions
EP1657492A3 (fr
EP1657492A2 (fr
Inventor
Pedro Herrera Estrada
Jose Leon Garcia
Rogerio Nabarretti
Luis Antonio Palacios Valdueza
Emilio Placer Maruri
Julio Rubio Abad
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 EP1657492A2 publication Critical patent/EP1657492A2/fr
Publication of EP1657492A3 publication Critical patent/EP1657492A3/fr
Application granted granted Critical
Publication of EP1657492B1 publication Critical patent/EP1657492B1/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
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGESĀ ; 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
    • 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
    • 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
    • F23N2235/14—Fuel valves electromagnetically operated

Definitions

  • the invention relates to a gas hob with a gas tap according to the preamble of claim 1
  • 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 depressed cock 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 from the DE 198 25 846 A1 known position sensors are mounted in the region of a control panel on an outer side of the gas tap and thus very prone to failure.
  • Subject of the EP 0 581 391 A1 is an electronic control system for adjusting a gas flow for a gas consumer, eg for a gas-powered internal combustion engine.
  • an electromagnetically infinitely adjustable gas valve is electronically controlled.
  • the gas valve includes a position sensor whose output is linearly proportional to the position of a spool of the gas valve.
  • thermoelectrically controlled semi-automatic safety valve for two or more burners of a household gas appliance known.
  • This safety valve includes an electrical switch for controlling the firing heads of the burners.
  • the electrical switch is arranged in a protective housing. In the rest position, an actuator presses against the electrical switch and keeps it open. In the ignition position in which the gas path is open, the actuator is moved away from the electrical switch by an electromagnetically generated force, whereupon the electrical switch closes (see. FIGS. 2 to 4 of the US Pat. No. 3,157,222 ).
  • the object of the present invention is a generic. To provide gas hob with such a gas tap, in which a reliable operation is permanently enabled.
  • the object of the invention is achieved by a gas hob with the features of claim 1.
  • the position sensor is formed within a housing of the solenoid valve. The position switch is thus largely protected from external influences.
  • the position sensor detects an opening position of the electromagnetic valve and generates a corresponding opening signal.
  • the position sensors detect according to the DE 198 25 846 A1 not the opening position of the solenoid valve. Rather, according to the DE 198 25 846 A1 an actuation of the tap axis of the gas tap, for example, detects a pressure actuation.
  • the position sensor is designed as an electrical switch for closing a signal line leading to the control device.
  • the electrical switch can be brought by actuation of the solenoid valve in its closed position. In the closed position, the signal line leading to the control device is closed so that the control device can detect a signal current.
  • the electric switch is formed by the valve stem of the electromagnetic valve.
  • the valve stem of the solenoid valve may be in its open position with a terminal end of the signal line in contact. In this state, the valve stem closes the signal line so that a signal current can flow to the electric control device.
  • the solenoid valve is designed in the sense of a component reduction within the gas tap.
  • the solenoid valve by means of a cock axis are brought into 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 at 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 is mountable in the gas tap.
  • 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.
  • the terminal end of the electrical switch formed within the solenoid valve housing may be disposed between two counter-anchors of solenoid valve coils. In this way, the terminal end of the electrical switch is protected against external influences, such as shocks.
  • the electrical switch can close a signal circuit of the control device by a pressure actuation.
  • a signal flow from the electrical control device to the terminal end of the electrical switch to the valve stem of the solenoid valve via a first ground terminal of the valve stem to a second ground terminal of the control device flow back to the control device.
  • the at least one solenoid valve coil can be integrated in the signal circuit.
  • the at least one electromagnetic coil can exert a magnetic holding force on the valve stem. The valve stem is thus held by the magnetic holding force in its open position.
  • 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, which interrupts a gas path 15 within the gas tap 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 terminal end 59 of the solenoid coil 57 is between the two Counter anchors 51 arranged.
  • 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 earthed via the second grounding connection 43, via the first earth connection 41 of the gas tap.
  • the second embodiment of the invention is shown. Consequently, the electrical control device via the signal line 33 directly to the terminal end 59 in electrical connection.
  • the two solenoid valve coils 55, 57 are not interposed in the signal circuit S.
  • the gas burner 1 is assigned a thermocouple 63 for flame detection.
  • the thermocouple 63 is connected in a thermal power circuit T, in series with the first solenoid valve coil and the second solenoid valve coil.
  • thermocouple 63 In burner operation, the thermocouple 63 is heated by the flames and thereby generates a thermal current. By the thermal current of the thermal circuit T, a magnetic holding force is generated in the solenoid valve coils 55, 57, which holds the armature 25 of the valve stem 23 in its open position.
  • the ignition electrode 37 is formed 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. Should this not occur within a predetermined time interval or after a number of predetermined sparks against ignition of the gas, the electrical control device interrupts the signal circuit. Characterized the magnetic holding force of the solenoid coils 55, 57 is interrupted, whereby the valve stem is returned to its closed position.

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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)
  • Magnetically Actuated Valves (AREA)

Claims (12)

  1. Table de cuisson Ć  gaz comprenant un robinet Ć  gaz, le robinet Ć  gaz Ć©tant mĆ©nagĆ© pour le rĆ©glage de la quantitĆ© de gaz pour un brĆ»leur Ć  gaz (1), et comprenant un axe de robinet (9), une Ć©lectrovalve (13) et un capteur de position (23, 59), le robinet Ć  gaz Ć©tant actionnable au moyen d'une manette de commande par l'intermĆ©diaire de l'axe de robinet (9), l'Ć©lectrovalve (13) Ć©tant mĆ©nagĆ©e pour ouvrir ou fermer une voie du gaz (15) vers le brĆ»leur Ć  gaz (1) et pouvant ĆŖtre mise dans une position d'ouverture par commande par pression sur l'axe de robinet (9) par l'intermĆ©diaire de la manette de commande (11), et le capteur de position (23, 59) Ć©tant rĆ©alisĆ© en tant qu'un commutateur Ć©lectrique destinĆ© Ć  fermer une ligne de signalisation (33) menant au dispositif de commande (35), caractĆ©risĆ©e en ce que le capteur de position (23, 59) enregistre une position d'ouverture de l'Ć©lectrovalve (13) et amĆØne un signal d'ouverture correspondant Ć  un dispositif de commande (35), en ce que le capteur de position (23, 59) est rĆ©alisĆ© Ć  l'intĆ©rieur d'un boĆ®tier (21) de l'Ć©lectrovalve (13) et en ce que le commutateur Ć©lectrique est rĆ©alisĆ© en tant qu'un poussoir (23) de l'Ć©lectrovalve (13), lequel vient en contact avec une extrĆ©mitĆ© de connexion (59) de la ligne de signalisation (33) lors d'une commande par pression (I) du robinet Ć  gaz (7).
  2. Table de cuisson Ơ gaz selon la revendication 1, caractƩrisƩe en ce que l'Ʃlectrovalve (13) est rƩalisƩe dans le robinet Ơ gaz (7).
  3. Table de cuisson Ơ gaz selon l'une quelconque des revendications 1 ou 2, caractƩrisƩe en ce qu'une Ʃlectrode d'allumage (37) destinƩe Ơ gƩnƩrer une flamme sur le brƻleur Ơ gaz est affectƩe au dispositif de commande (35).
  4. Table de cuisson Ơ gaz selon l'une quelconque des revendications 1 Ơ 3, caractƩrisƩe en ce que le dispositif de commande (35), en rƩponse au signal d'ouverture du capteur de position (23, 59), excite l'Ʃlectrode d'allumage (37) pour un allumage de flamme.
  5. Table de cuisson Ơ gaz selon l'une quelconque des revendications 1 Ơ 4, caractƩrisƩe en ce que l'extrƩmitƩ de connexion (59) du commutateur Ʃlectrique est disposƩe entre deux contre-induits (51) de bobines d'Ʃlectrovalve (55, 57).
  6. Table de cuisson Ơ gaz selon l'une quelconque des revendications 1 Ơ 5, caractƩrisƩe en ce que le commutateur Ʃlectrique ferme un circuit de signalisation (S) du dispositif de commande (35) lors d'une commande par pression (I).
  7. Table de cuisson Ơ gaz selon la revendication 6, caractƩrisƩe en ce que dans le circuit de signalisation (S) sont disposƩs en sƩrie le dispositif de commande (35), l'extrƩmitƩ de connexion (59), le poussoir (23) avec son armature d'aimant (25), lequel est reliƩ Ʃlectriquement au dispositif de commande (35).
  8. Table de cuisson Ć  gaz selon la revendication 7, caractĆ©risĆ©e en ce que la liaison Ć©lectrique entre le poussoir (23) et le dispositif de commande est rĆ©alisĆ©e par l'intermĆ©diaire d'une premiĆØre prise de terre (41) du robinet Ć  gaz (7) et d'une seconde prise de terre (43) du dispositif de commande (35).
  9. Table de cuisson Ć  gaz selon l'une quelconque des revendications 1 Ć  8, caractĆ©risĆ©e en ce que le poussoir (23) est mis Ć  la terre Ć©lectriquement au moyen du robinet Ć  gaz (7) par l'intermĆ©diaire d'une premiĆØre prise de terre (41).
  10. Table de cuisson Ơ gaz selon l'une quelconque des revendications 7, 8 ou 9, caractƩrisƩe en ce que des bobines d'Ʃlectrovalve (55, 57) sont intƩgrƩes en supplƩment dans le circuit de signalisation (S).
  11. Table de cuisson Ơ gaz selon l'une quelconque des revendications 1 Ơ 10, caractƩrisƩe en ce que le dispositif de commande (35) et le robinet Ơ gaz (7) sont mis Ơ la terre Ʃlectriquement par l'intermƩdiaire de prises de terre (41, 43).
  12. Table de cuisson Ơ gaz selon l'une quelconque des revendications 1 Ơ 11, caractƩrisƩe en ce que les bobines d'Ʃlectrovalve (55, 57) maintiennent le poussoir (23) magnƩtiquement dans sa position d'ouverture lorsque le commutateur Ʃlectrique est fermƩ.
EP05110103A 2004-11-10 2005-10-28 Table de cuisson avec un robinet du gaz Not-in-force EP1657492B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200402784A ES2258910B1 (es) 2004-11-10 2004-11-10 Placa de cocina de gas.

Publications (3)

Publication Number Publication Date
EP1657492A2 EP1657492A2 (fr) 2006-05-17
EP1657492A3 EP1657492A3 (fr) 2007-12-26
EP1657492B1 true EP1657492B1 (fr) 2013-02-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05110103A Not-in-force EP1657492B1 (fr) 2004-11-10 2005-10-28 Table de cuisson avec un robinet du gaz

Country Status (2)

Country Link
EP (1) EP1657492B1 (fr)
ES (2) ES2258910B1 (fr)

Cited By (1)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
US11067285B2 (en) 2016-07-11 2021-07-20 Copreci, S. Coop. Gas cooking appliance

Families Citing this family (5)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
ES2391516B1 (es) * 2005-02-28 2013-10-04 Bsh ElectrodomƩsticos EspaƱa, S.A. Aparato de gas, en particular un fuego de una cocina de gas.
ES2291083B1 (es) * 2005-08-05 2008-10-16 Bsh Electrodomesticos EspaƱa, S.A. Placa de cocina de gas.
ES2291084B1 (es) * 2005-08-05 2008-10-16 Bsh Electrodomesticos EspaƱa, S.A. Placa de cocina de gas.
CN104776460B (zh) * 2015-04-21 2017-03-08 čµµęŒÆ华 äø€ē§ē”ØäŗŽē‡ƒę°”ē¶å…·ēš„č¾“ę°”č£…ē½®äøŽē‡ƒę°”ē¶å…·č£…ē½®
EP3205935B1 (fr) * 2016-02-11 2019-06-12 Copreci, S.Coop. Appareil Ć  gaz comprenant un robinet Ć  gaz et un dispositif de commande

Citations (4)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
US3157222A (en) * 1961-04-08 1964-11-17 Kromschroeder Ag G Thermoelectrically operated semi-automatic flame control device for two or more burners
US3242968A (en) * 1963-05-04 1966-03-29 Junkers & Co Gas valve
US4147494A (en) * 1976-04-14 1979-04-03 Howa Sangyo Kabushiki Kaisha Gas burner ignition device
US20020094498A1 (en) * 2000-08-17 2002-07-18 Jorge Rodriguez-Rodriguez Programmable burner for gas stoves

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* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
FR1580257A (fr) * 1968-06-06 1969-09-05
GB2109603B (en) * 1981-10-09 1986-02-12 Thorn Emi Gas Appliances Limit A cooking control and cooking apparatus including such a control
NL9201391A (nl) * 1992-07-31 1994-02-16 Deltec Fuel Systems Bv Regelstelsel voor het toevoeren van een gasstroom aan een gasgebruikstoestel.
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
US20020073985A1 (en) * 2000-12-18 2002-06-20 Bsh Home Appliances Corporation Pulsed sequence burner control with valve

Patent Citations (4)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
US3157222A (en) * 1961-04-08 1964-11-17 Kromschroeder Ag G Thermoelectrically operated semi-automatic flame control device for two or more burners
US3242968A (en) * 1963-05-04 1966-03-29 Junkers & Co Gas valve
US4147494A (en) * 1976-04-14 1979-04-03 Howa Sangyo Kabushiki Kaisha Gas burner ignition device
US20020094498A1 (en) * 2000-08-17 2002-07-18 Jorge Rodriguez-Rodriguez Programmable burner for gas stoves

Cited By (1)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
US11067285B2 (en) 2016-07-11 2021-07-20 Copreci, S. Coop. Gas cooking appliance

Also Published As

Publication number Publication date
EP1657492A3 (fr) 2007-12-26
ES2258910A1 (es) 2006-09-01
EP1657492A2 (fr) 2006-05-17
ES2258910B1 (es) 2007-06-01
ES2400718T3 (es) 2013-04-11

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