EP2023043B1 - Commutation d'un dispositif d'allumage - Google Patents

Commutation d'un dispositif d'allumage Download PDF

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Publication number
EP2023043B1
EP2023043B1 EP08104921.5A EP08104921A EP2023043B1 EP 2023043 B1 EP2023043 B1 EP 2023043B1 EP 08104921 A EP08104921 A EP 08104921A EP 2023043 B1 EP2023043 B1 EP 2023043B1
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EP
European Patent Office
Prior art keywords
unit
connection
transistor
ignition
blocking
Prior art date
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EP08104921.5A
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German (de)
English (en)
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EP2023043A1 (fr
Inventor
Pedro Herrera Estrada
Jose Leon Garcia
Luis Antonio Palacios Valdueza
Emilio Placer Maruri
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BSH Hausgeraete GmbH
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BSH Hausgeraete GmbH
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Priority to PL08104921T priority Critical patent/PL2023043T3/pl
Publication of EP2023043A1 publication Critical patent/EP2023043A1/fr
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Publication of EP2023043B1 publication Critical patent/EP2023043B1/fr
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q3/00—Igniters using electrically-produced sparks
    • 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
    • F24C3/10—Arrangement or mounting of ignition devices
    • F24C3/103—Arrangement or mounting of ignition devices of electric ignition devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q3/00—Igniters using electrically-produced sparks
    • F23Q3/004—Using semiconductor elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q9/00—Pilot flame igniters

Definitions

  • the invention is based on an igniter circuit according to the preamble of claim 1.
  • a gas cooker ignition device which comprises an ignition unit which is intended to ignite a gas burner by sparking.
  • An ignition of the ignition unit is triggered by a trip unit in the operation of a control element, which is assigned to the corresponding gas burner.
  • the triggering of the ignition process takes place by means of a producible in the operation of the control element electrical contact of the trip unit with a grounded connection.
  • the Japanese publication JP 57 161421 A discloses an igniter circuit for triggering an ignition by means of a reference voltage provided by a voltage generator at a reference voltage terminal A.
  • the igniter circuit comprises a trip unit, wherein a connection characteristic, in this case a state of charge of a capacitor, decides whether ignition can take place.
  • the connection characteristic is a comparison characteristic between an electrical potential at a point B, which is identical to the voltage applied to the capacitor, and a low-voltage potential defined by the voltage generator.
  • an ignition device circuit for controlling a power supply for an ignition unit wherein an alternating voltage supplied to the ignition unit is regulated such that a constant power supply to the ignition unit is achieved.
  • the voltage drop of the effective voltage at the ignition unit is compared with a reference DC voltage of a reference voltage terminal.
  • Analogous to the Japanese publication JP 57 161421 A is it also in the US 2004/060924 A1 at the connection parameter by a comparison parameter.
  • an igniter circuit has been proposed with an ignition unit, a trip unit for triggering an ignition operation by means of a reference voltage terminal and a protection unit which is provided to block the trip unit, in particular in a manufactured connection to the reference voltage terminal, in dependence on a connection characteristic.
  • the connection characteristic is designed as a time characteristic.
  • the protection unit is provided to lock the trip unit, if after a certain period of time no ignition is triggered.
  • the object of the invention is to provide an igniter circuit with improved operating safety characteristics.
  • the invention relates to an ignition device circuit, in particular for a cooking device, with a trip unit, which is provided for triggering an ignition of an ignition unit by means of a reference voltage terminal.
  • the igniter circuit comprises a protection unit which has a blocking unit and which is provided to block or release the trip unit in response to at least one connection parameter when the electrical connection is made to the reference voltage connection. It can be achieved by a particularly high level of security.
  • An "electrical connection” is to be understood in this context, in particular an electrically conductive connection, which is made by a solid and / or a liquid. In particular, the consideration of an amount of air as an electrical connection should be excluded.
  • an “electrical connection” can be understood in particular to mean a connection which is produced by means of a body which has a specific conductivity greater than 10 -8 S / m.
  • the reference voltage connection corresponds in particular to a grounded connection.
  • the reference voltage terminal is different from one Mains voltage connection formed.
  • the igniter circuit is intended for use in a cooking device, it is advantageous in this context if the reference voltage connection is electrically connected to a component of the cooking device which has a reference voltage, in particular is grounded.
  • this component may be formed as part of an adjusting device for adjusting a gas flow, such as a gas tap, to which the Zündvoriquessscrien is assigned.
  • the ignition unit is in particular intended to ignite a gas quantity by means of spark formation, in particular by generating a high voltage.
  • the connection characteristic is in particular designed as an electrical parameter, such as a voltage, as a resistor, as a current, etc.
  • the contact means is advantageously provided with a control element, e.g. with a switch, mechanically coupled.
  • the operating unit and the contact means connected thereto are advantageously used for the proper triggering of an ignition process of the ignition unit.
  • the protection unit can be advantageously avoided that a different contact means from the foreign body, by means of which an unintentional electrical connection is made to the reference voltage terminal, actuates unintentional release of the trip unit.
  • connection characteristic serves as a distinguishing characteristic for distinguishing between an electrical connection to the reference voltage connection, which is produced via the contact means, and an inadvertent electrical connection to an electrical reference voltage connection, which is produced via a foreign body.
  • a particularly compact and inexpensive construction of the igniter circuit can be achieved if the protective unit is at least partially formed as part of the trip unit.
  • a protection unit which is "at least partially formed as part of the trip unit, should be understood in particular a protection unit having at least one functional component, the component of the trip unit is.
  • the functional component may have a function triggering an ignition process and a function blocking the triggering unit.
  • a self-locking of the trip unit depending on a connection characteristic can be advantageously achieved.
  • blocking unit is provided for locking the trip unit and specifies a blocking threshold of the connection characteristic.
  • a “blocking threshold" of the connection parameter is to be understood in particular to mean a value of the connection parameter, above or below which a locking of the tripping unit is actuated.
  • a particularly secure locking of the trip unit can be achieved if the locking unit has a means that specifies a resistance barrier threshold of the electrical connection.
  • high reliability can be achieved in the detection of inadvertent establishment of an electrical connection to the reference voltage terminal, when the resistance blocking threshold has a value between 500 ohms and 2000 ohms.
  • a low cost embodiment of the igniter circuit can be achieved when the means has at least one resistor.
  • the protective unit has a blocking means for blocking the trip unit, which closes a connection circuit comprising the compound produced in the locked state of the trip unit. It can be achieved by a current-carrying connection is provided for electrical connection by a particularly simple monitoring of a connection characteristic of the compound produced. This can be achieved in a particularly simple manner if the blocking means has a switching means which is in a conducting state when the trip unit is in the locked state.
  • a compact, inexpensive and reliable protection unit can be achieved if the protection unit has a blocking unit for blocking the trip unit, which comprises at least one transistor.
  • the transistor is switched such that a transition control variable of the transistor is proportional to a connection characteristic.
  • a transition control variable should be understood in particular to be a variable which serves to control a transition of the transistor between a blocking state and a conducting state.
  • a particularly simple circuit can be achieved if this transition control variable is a terminal voltage difference of the transistor which is proportional to a connection characteristic.
  • a “terminal voltage difference” of the transistor should in particular be understood to mean a voltage difference between two terminals of the transistor. If the transistor is designed as a bipolar transistor, the terminals of the transistor are the base, the collector and the emitter. Particularly advantageous as a terminal voltage difference in particular the base-emitter voltage of the transistor is proportional to a connection characteristic. Particularly advantageously, a connection characteristic corresponds to a transition control variable of the transistor. In this case, a particularly simple circuit can be achieved if the transistor is connected in such a way that a connection characteristic corresponds to a terminal voltage difference of the transistor.
  • a simple and compact topology of the igniter circuit can be achieved if the blocking unit has a resistor which forms a terminal voltage divider, in particular a base voltage divider for the transistor, when the connection is established in cooperation with the connection.
  • a transition of the transistor between its blocking state and its conducting state depends on the resistance of the connection produced.
  • a "terminal voltage divider" for a transistor should in particular be understood to mean a circuit of two resistors in series, a transistor terminal, in particular the base, connecting to this circuit at a connection point which is arranged between the resistors.
  • the manufactured electrical connection with its intrinsic resistance fictitious a resistance of the terminal voltage divider.
  • the igniter circuit has at least three transistors, whereby the reliability can be further increased when the trip unit is blocked.
  • the igniter circuit has a power supply unit which is provided to supply an ignition unit with a DC voltage.
  • the igniter circuit may comprise a unit for rectifying a signal related to a mains power connection.
  • the DC voltage may in particular have a value of a mains power supply, such as e.g. 220 V or 230 V.
  • FIG. 1 shows a trained as a gas hob cooking device 10 in a view from above.
  • the cooking apparatus 10 has a cooking area in which four burners 12 are arranged, and an operating area with an operating unit 14, which comprises four operating elements 16 designed as handles, which are intended to be actuated by an operator and one each of the burners 12 assigned.
  • the controls 16 are each a part of a gas cock, not shown, which has an adjusting means for adjusting the flow of a gas flowing to the corresponding burner gas.
  • This adjusting means may be designed in particular as a rotary body, wherein an adjustment of the flow takes place by means of a rotation of the corresponding control element 16.
  • the controls 16 are also used to light one of the burners 12, which is achieved, for example, by pressing the Operating element 16 can take place.
  • the cooking device 10 is provided with an ignition device 18, which is shown schematically in the figure by a dashed line.
  • the ignition device 18, in particular a Zündvoriquessscaria 20 of the ignition device 18 is in their structure and operation based on FIG. 2 described in more detail.
  • FIG. 2 an internal igniter circuit 20 of the ignition device 18 is shown.
  • the ignitor circuit 20 may be divided into three functional units, each having a different function.
  • the igniter circuit 20 has an ignition unit 22, which is intended to ignite a gas quantity flowing into the corresponding gas burner 12. This is done by means of a set of electrode pairs 24, which are in contact with the flowing gas in the ignition process and are provided for ignition by sparking.
  • the ignition unit 22 is provided with a high voltage unit 26, which is provided in an ignition process for generating a high voltage between two paired electrodes.
  • This includes a primary transformer winding 28 and a set of secondary transformer windings 30 each forming a closed circuit with a pair of electrodes 24.
  • the primary transformer winding 28 is fed with an alternating current.
  • the ignition unit 22 has a capacitor C4, which forms a resonant circuit 29 with the primary transformer winding 28.
  • the ignition unit 22 is further connected to a power supply unit 32 of the igniter circuit 20, from which the ignition unit 22 obtains an electrical energy for an ignition process.
  • This power supply unit 32 is provided to provide a DC voltage for the ignition unit 22.
  • the voltage supply unit 32 has a device for rectifying an alternating current obtained from a mains power supply 36 which is external to the ignition device 18 and which comprises a rectifier 34.
  • a signal is provided with a DC voltage, the value of a mains voltage, such as. 220V or 230V.
  • the capacitor C4 is charged up to a maximum voltage, which is determined by a switched in the resonant circuit 29 Sidac Z (silicon diode for alternating current or silicon diode for alternating current). Upon reaching this voltage, the capacitor C4 discharges into the primary transformer winding 28 and the Sidac Z. This cycle repeats, generating an AC voltage in the secondary transformer windings 30.
  • the Zündvoriquessscrien 20 a trip unit 38 for triggering an ignition of the ignition unit 22.
  • the trip unit 38 has a first switching means 39, which is designed as npn transistor T3.
  • the switching means 39 is arranged in a circuit formed at least by the oscillating circuit 29 and the power supply unit 32, which serves to supply the ignition unit 22 with electric current. If the switching means 39 is in its conducting state, then the switching means 39 closes this circuit and current can flow to the oscillating circuit 29, whereby an ignition process of the ignition unit 22, as described above, can take place.
  • the switching means 39 is in its blocking state, the circuit is open and the ignition unit 22 is locked.
  • the switching means 39 with the resonant circuit 29 of the ignition unit 22 on the one hand and directly connected to the power supply unit 32.
  • the transistor collector is connected directly to the resonant circuit 29, while the transistor emitter is directly connected to the negative polarized terminal of the rectifier 34.
  • Parallel to the transistor T3, a capacitor C1 is connected.
  • the trip unit 38 for activating the transistor T3, that is, for triggering an ignition operation of the ignition unit 22 will be described.
  • the trip unit 38 has a first DC busbar 40, which starts from a grounded reference voltage terminal PE and is connected via a capacitor C2 to a second DC busbar 42.
  • This DC bus 42 is part of the circuit described above for supplying the ignition unit 22 and connects the negative polarized terminal of the rectifier 34 with the resonant circuit 29.
  • the DC bus 40 is further connected to a further DC bus 44 via a capacitor C3.
  • This DC bus 44 is part of the circuit described above for supplying the ignition unit 22 and connects the positively polarized Also, a resistor R6 is disposed in a branch connecting the DC bus 42 to the DC bus 44, which is connected between the transistor T3 and the oscillation circuit 29.
  • the trip unit 38 has a first branch 46 which connects the first DC bus bar 40 to the second DC bus bar 42.
  • This branch 46 is connected in parallel to the capacitor C2.
  • a switching means 48 designed as pnp transistor T2 and two resistors R4, R5 are connected in series in the first branch 46 successively.
  • the resistor R4 is connected to the transistor collector of the transistor T2 and the transistor emitter is connected to the DC bus 40.
  • the transistor base of the transistor T3 connects to the branch 46 between the resistors R4, R5.
  • the resistors R4, R5 a base voltage divider for the transistor T3, which determines the operating point of the transistor T3. If the transistor T2 is in its conducting state, a current can flow in the branch 46.
  • a base-emitter voltage of the transistor T3 is present, which is selected by the dimensioning of the resistors R4 and R5 such that it is sufficient to enable the transistor T3 in its conducting state. If the transistor T2 is in the blocking state, the transistor T3 is in its blocking state by the corresponding base-emitter voltage.
  • the trip unit 38 has a second branch 50 which connects the DC busbars 40, 42.
  • this branch 50 two resistors R3 and R2 are connected in series.
  • the transistor base of the transistor T2 connects to the second branch 50 between the resistors R3 and R2.
  • a third branch 52 of the trip unit 38 connecting the DC busbars 40, 42 is provided, which has the resistor R2 together with the second branch 50.
  • a switch means 54 formed as a pnp transistor T1 is connected in series with the resistor R2.
  • the transistor T1 is hereby connected in parallel to the resistor R3.
  • the resistors R2, R3 are connected directly to the transistor collector and the transistor emitter of the transistor T1 is connected directly to the DC bus 40. If the transistor T1 is in a blocking state, a current can flow in the branch 50. This results in a base-emitter voltage of the transistor T2, which by the dimensioning the resistors R3, R2 is sufficient to enable the transistor T2 in its conducting state. If the transistor T1 is in a conducting state, the transistor T2 is in the off state.
  • the transistor base of the transistor T1 is directly connected to a terminal S of the ignition device 18. This terminal S is further connected via a resistor R1 to the second DC bus bar 42. With this, the transistor base of the transistor T1 is connected to the second DC bus 42 via the resistor R1.
  • the state of the switching means 54 ie, the transistor T1 depends on a contacting state of the terminal S. Is, as in FIG. 2 As shown, the terminal S is a free terminal, so there is a base-emitter voltage of the transistor T1, through which the transistor T1 is in its conducting state. If the transistor T1 is conductive, then the transistors T2 and T3 are in the blocking state and an ignition process of the ignition unit 22 is prevented.
  • connection S, the reference voltage connection PE and two further connections L and N represent external connections of the ignition device 18 which are used to establish an electrical connection of the ignition device 18 with further units outside the ignition device 18.
  • the terminals L and N are connected to the mains power supply 36.
  • the reference voltage terminal PE is connected in the mounted state of the cooking device 10 with a grounded, external to the ignition device 18 component 55 of the cooking device 10.
  • This component 55 is preferably a component of the gas tap described above for adjusting a gas flow.
  • a contact means 56 is actuated by means of a mechanical coupling unit, not shown, which establishes a direct electrical connection from the terminal S to the reference voltage terminal PE.
  • the contact means 56 is advantageously formed externally to the ignition device 18.
  • the contact means 56 is arranged in the above-described gas tap for adjusting a gas flow.
  • the transistor T1 is due to the resulting base-emitter voltage of the transistor T1 in its blocking Condition, which, as described above, causes a transition of the transistors T2 and T3 in its conductive state and hereby an activation of the ignition unit 22.
  • the igniter circuit 20 is provided with a protection unit 58. If an electrical connection is made between the terminal S and the reference voltage terminal PE, the protection unit 58 serves to block the trip unit 38 as a function of a connection characteristic of the electrical connection, in dependence on a resistance characteristic of the electrical connection.
  • a foreign body such as a foreign body, e.g. Water or dirt
  • the protection unit 58 has a blocking unit 60, which is provided for blocking the triggering unit 38.
  • this blocking unit 60 has a blocking means 62, which comprises the switching means 54 formed as transistor T1, and the resistor R1.
  • connection characteristic R x a resistance, which is referred to as a connection characteristic R x .
  • the electrical connection with the connection characteristic R X and the resistor R1 form a branch connecting the DC busbars 40, 42.
  • the transformer base of the transformer T1 connects to this branch between the terminal S and the resistor R1.
  • the transformer T1 has a base-emitter voltage which depends on the connection characteristic R x of the electrical connection.
  • the transition of transistor T1 between its blocking state and its conducting state can be controlled by means of a transient control variable.
  • a transient control variable which corresponds to a voltage difference between two transistor terminals.
  • the transistor T1 formed as a bipolar transistor, wherein a terminal voltage difference corresponds to a voltage difference between two of the terminals base, emitter and collector.
  • the transistor T1 may be formed as a field-effect transistor, wherein the terminal voltage difference corresponds to a voltage difference between two of the terminals gate, drain and source.
  • the blocking unit 60 with the transistor T1 and in particular the resistor R1 is designed such that a transition control variable of the transistor T1 is linked to a connection characteristic.
  • the base-emitter voltage as the terminal voltage difference is a transition control variable V BE . If the transition control variable V BE exceeds a threshold, the transistor T1 is brought into its conducting state. If the transition control variable V BE is below the threshold, the transistor T1 is in its blocking state. Further, in this example, a voltage drop of the established connection between the terminal S and the reference voltage terminal PE represents a connection characteristic V X , the transient control variable V BE being proportional to the connection characteristic V X.
  • the transient control variable V BE varies as a function of the voltage of the transformer base. In the illustrated construction, the voltage of the transformer base corresponds to the voltage of the terminal S, ie in particular the connection characteristic V X.
  • the voltage of the transformer base is thus proportional to the connection characteristic R X , wherein the proportionality factor depends on the resistor R1. If the connection parameter R X increases, the voltage of the transformer base of the transformer T1 and therefore the transition control variable V BE increases . If this transition control variable V BE exceeds the threshold described above, the transistor T1 is brought into its conducting state and the trip unit 38 is blocked.
  • the blocking unit 60 with the blocking means 62 having the transistor T1 and the resistor R1 therefore outputs a blocking threshold in the form of a threshold of the connection characteristic V X , which realizes the transition control variable V BE necessary for the transition of the transistor T 1 , and in the form of a resistance blocking threshold of the connection characteristic R X before, which realizes the necessary for the transition of the transistor T1 threshold of the connection characteristic V X.
  • the proportionality factor of the connection characteristic V X to the connection characteristic R X depends on the resistor R1.
  • the resistor R1 forms a means 64 which provides a resistance blocking threshold of the electrical connection. If the connection characteristic R X of the electrical connection rises above this resistance blocking threshold, the blocking means 62 is brought into the conducting state, as a result of which the triggering unit 38 is blocked.
  • the blocking unit 60 and in particular the resistor R1 are dimensioned such that the resistance blocking threshold of the connection characteristic R x has a value of 1000 ohms.
  • the structure of the protection unit 58 is further characterized in that, when the connection is made, the blocking means 62, namely its switching means 54, forms a circuit which comprises the electrical connection between the terminal S and the reference voltage terminal PE. In the conductive state of the switching means 54, i. in the locked state of the trip unit 38, the circuit is closed by the blocking means 62, whereby an electric current can flow through the electrical connection.
  • the topology of the igniter circuit 20 is characterized in that the protection unit 58 forms part of the trip unit 38.
  • the switching means 54 which is provided as part of the trip unit 38 for releasing an ignition of the ignition unit 22 upon actuation of the control element 16, in addition as blocking means 62 of the protection unit 58, the 38 produced in connection to lock the trip unit depending on the connection characteristic R X is provided.
  • the igniter circuit 20 is further provided with a diode D2, which is connected between the reference voltage terminal PE and the transistor emitter of the transistor T1 and serves to protect the igniter 18 from damage during an inspection of the electrical insulation.
  • FIG. 3 shows the ignition device 18 in a perspective view. It has a housing 66 in which the in FIG. 2 shown Zündvoriquessscrien 20 is arranged. There are also six output ports 68, with a pair of output ports 68 each for a pair of electrodes 24. In FIG. 4 an alternative embodiment of the ignition device 18 is shown, which is provided with four output openings 68 for two electrode pairs 24.
  • cooking apparatus 56 contact means 12 burner 58 protection unit 14 operating unit 60 blocking unit 16 operating element 62 blocking means 18 detonator 64 medium 20 Zündvoriquessscrien 66 casing 22 ignition unit 68 output port 24 electrode pair C capacitor 26 High-voltage unit D diode 28 transformer winding R resistance 29 resonant circuit T transistor 30 transformer winding Z sidac 32 Power supply unit PE Reference voltage terminal 34 rectifier S connection 36 AC power supply V x Connection parameter 38 trip unit Rx Connection parameter 39 switching means V BE Transition control variable 40 DC rail L connection 42 DC rail N connection 44 DC rail 46 branch 48 switching means 50 branch 52 branch 54 switching means 55 component

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Claims (12)

  1. Commutation d'un dispositif d'allumage, en particulier pour un appareil de cuisson, comprenant une unité de déclenchement (38) qui est prévue pour le déclenchement d'un processus d'allumage d'une unité d'allumage (22), au moyen d'une borne de tension de référence (PE), et comprenant une unité de protection (58) qui présente une unité de blocage (60) et qui est prévue dans le but, dans le cas d'une connexion électrique réalisée à la borne de tension de référence (PE), de bloquer resp. de libérer l'unité de déclenchement (38) en fonction d'au moins un paramètre de connexion (Vx, Rx), caractérisée en ce que le paramètre de connexion (Vx, Rx) sert de paramètre de différenciation par rapport à une différenciation entre une connexion électrique à la borne de tension de référence (PE), laquelle connexion électrique est réalisée par un moyen de contact, et une connexion électrique involontaire à une borne de tension de référence électrique (PE), laquelle connexion est réalisée par un corps étranger.
  2. Commutation d'un dispositif d'allumage selon la revendication 1, caractérisée en ce que l'unité de blocage (60) est prévue pour le blocage de l'unité de déclenchement (38) et prédéfinit un seuil de blocage d'un paramètre de connexion (Vx, Rx).
  3. Commutation d'un dispositif d'allumage selon la revendication 1 ou 2, caractérisée en ce que l'unité de blocage (60) présente un moyen (64) qui prédéfinit un seuil de blocage de résistance de la connexion électrique.
  4. Commutation d'un dispositif d'allumage selon la revendication 3, caractérisée en ce que le seuil de blocage de résistance présente une valeur comprise entre 500 ohms et 2000 ohms.
  5. Commutation d'un dispositif d'allumage selon la revendication 3 ou 4, caractérisée en ce que le moyen (64) présente au moins une résistance (R1).
  6. Commutation d'un dispositif d'allumage selon l'une quelconque des revendications précédentes, caractérisée en ce que l'unité de protection (58) présente une unité de blocage (60) servant au blocage de l'unité de déclenchement (38) qui comprend au moins un transistor (T1).
  7. Commutation d'un dispositif d'allumage selon la revendication 6, caractérisée en ce qu'un paramètre de commande de transition (VBE) du transistor (T1) est proportionnel à un paramètre de connexion (Vx, Rx).
  8. Commutation d'un dispositif d'allumage selon la revendication 7, caractérisée en ce qu'une différence de tension de borne du transistor (T1) est proportionnelle à un paramètre de connexion (Vx, Rx).
  9. Commutation d'un dispositif d'allumage selon l'une quelconque des revendications 6 à 8, caractérisée en ce que l'unité de blocage (60) présente une résistance (R1) qui, lorsqu'une connexion est réalisée, forme, en agissant de façon conjointe avec la connexion, un diviseur de tension de borne pour le transistor (T1).
  10. Commutation d'un dispositif d'allumage selon l'une quelconque des revendications précédentes, caractérisée par au moins trois transistors (T1, T2, T3).
  11. Commutation d'un dispositif d'allumage selon l'une quelconque des revendications précédentes, caractérisée par une unité d'alimentation en tension (32) qui est prévue pour l'alimentation en tension continue d'une unité d'allumage (22).
  12. Appareil de cuisson, en particulier appareil de cuisson au gaz, comprenant une commutation d'un dispositif d'allumage selon l'une quelconque des revendications précédentes.
EP08104921.5A 2007-08-07 2008-07-30 Commutation d'un dispositif d'allumage Active EP2023043B1 (fr)

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PL08104921T PL2023043T3 (pl) 2007-08-07 2008-07-30 Układ urządzenia zapłonowego

Applications Claiming Priority (1)

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ES200702290A ES2334605B1 (es) 2007-08-07 2007-08-07 Circuito de dispositivo de encendido.

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EP2023043A1 EP2023043A1 (fr) 2009-02-11
EP2023043B1 true EP2023043B1 (fr) 2015-09-09

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ES (2) ES2334605B1 (fr)
PL (1) PL2023043T3 (fr)

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CN101922745B (zh) * 2009-06-09 2013-12-25 樱花卫厨（中国）股份有限公司 燃气灶点火器零秒点火实现电路
CN102759120B (zh) * 2012-07-25 2014-10-08 刘喆 灶具全自动电子点火器

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EP2023043A1 (fr) 2009-02-11
ES2334605B1 (es) 2011-02-10
ES2547860T3 (es) 2015-10-09
PL2023043T3 (pl) 2016-03-31
ES2334605A1 (es) 2010-03-12

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