EP1847780A1 - Domestic cooking oven - Google Patents

Domestic cooking oven Download PDF

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Publication number
EP1847780A1
EP1847780A1 EP07106356A EP07106356A EP1847780A1 EP 1847780 A1 EP1847780 A1 EP 1847780A1 EP 07106356 A EP07106356 A EP 07106356A EP 07106356 A EP07106356 A EP 07106356A EP 1847780 A1 EP1847780 A1 EP 1847780A1
Authority
EP
European Patent Office
Prior art keywords
gas
control device
cooking oven
electronic
gas burner
Prior art date
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Granted
Application number
EP07106356A
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German (de)
French (fr)
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EP1847780B1 (en
Inventor
Jean-Pierre Carmes
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.)
FagorBrandt SAS
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Brandt Industries SAS
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Publication date
Application filed by Brandt Industries SAS filed Critical Brandt Industries SAS
Priority to PL07106356T priority Critical patent/PL1847780T3/en
Publication of EP1847780A1 publication Critical patent/EP1847780A1/en
Application granted granted Critical
Publication of EP1847780B1 publication Critical patent/EP1847780B1/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C1/00Stoves or ranges in which the fuel or energy supply is not restricted to solid fuel or to a type covered by a single one of the following groups F24C3/00 - F24C9/00; Stoves or ranges in which the type of fuel or energy supply is not specified
    • F24C1/02Stoves or ranges in which the fuel or energy supply is not restricted to solid fuel or to a type covered by a single one of the following groups F24C3/00 - F24C9/00; Stoves or ranges in which the type of fuel or energy supply is not specified adapted for the use of two or more kinds of fuel or energy supply
    • F24C1/04Stoves or ranges in which the fuel or energy supply is not restricted to solid fuel or to a type covered by a single one of the following groups F24C3/00 - F24C9/00; Stoves or ranges in which the type of fuel or energy supply is not specified adapted for the use of two or more kinds of fuel or energy supply simultaneously
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00Stoves or ranges for gaseous fuels
    • F24C3/12Arrangement or mounting of control or safety devices
    • F24C3/126Arrangement or mounting of control or safety devices on ranges
    • F24C3/128Arrangement or mounting of control or safety devices on ranges in baking ovens

Definitions

  • the present invention relates to a cooking oven, and preferably a domestic cooking oven.
  • the present invention relates to the operation of a domestic cooking oven during a cooking sequence and also during a pyrolytic cleaning mode.
  • a known domestic cooking oven can be supplied with electrical energy.
  • This electric domestic cooking oven comprises a muffle, one or more electric heating elements being adapted to heat the air contained in the muffle.
  • An electric household cooking oven may also include an electronic power board for managing the power supply of the electric heating elements.
  • the electronic power card is controlled by control devices arranged on a control panel. These control members may be, for example, electromechanical switches and / or electronic switches.
  • a domestic gas cooking oven comprises a muffle, one or more gas burners being adapted to heat the air contained in the muffle.
  • These burners are generally arranged under the bottom wall or the top wall of the muffle.
  • the temperature of the air contained in the muffle is generally regulated by a thermostat controlling a gas flow control valve supplying the gas burner. This valve makes it possible to increase or decrease the gas flow supplying the gas burner by constantly being lit.
  • the present invention aims to provide a domestic cooking oven for controlling at least one gas burner and at least one electric heating element from common electrical control means.
  • a portion of the control means are identical for an electric domestic cooking oven and a domestic gas cooking oven.
  • the control panels of domestic electric and gas cooking ovens are structurally identical.
  • the electromechanical and / or electronic control means can be used on domestic gas and electric cooking ovens. While the control means known to those skilled in the art realizing the design of ovens domestic gas cookers do not allow to transpose them from a domestic gas cooking oven to an electric household cooking oven. Traditional control means used in domestic gas cooking ovens are specifically designed to supply gas heating means.
  • the present invention is directed to a domestic cooking oven comprising a cooking chamber, an electric control assembly consisting of a control interface and an electronic power control device, said control interface comprising means for electromechanical and / or electronic control.
  • the electronic power control device controls, by switching means, at least one electric heating element and an electronic control device for managing the supply of gas to at least one gas burner adapted to heat the gas. cooking chamber.
  • the electric control assembly is common to electric household cooking ovens and domestic gas cooking ovens.
  • the components required for this electrical control assembly are standardized and purchased by the manufacturer on a larger scale to reduce the cost of obtaining an oven according to the invention.
  • the manufacturer of domestic cooking oven has the ability to easily design cooking ovens with or without a gas supply module consisting of members for supplying gas to at least one gas burner.
  • the gas supply module can easily be replaced by at least one electric heating element when designing a domestic cooking oven without having to modify the structure of said oven.
  • Said at least one heating element connects to the electronic power control device in place of the electronic control device for managing the gas supply.
  • the gas supply module is replaceable by at least one electric heating element since the temperature regulation of the cooking chamber is identical for a domestic cooking oven comprising at least one gas burner or electric heating elements.
  • the electric control assembly can be used to control either an electric cooking oven or a gas cooking oven.
  • the electronic power control device is implanted on a first electronic card and the electronic control device for managing the gas supply is implanted on a second electronic card.
  • the first electronic board of the electronic power control device is identical for the cooking ovens domestic electric and domestic gas cooking ovens.
  • Said two electronic cards may form a single entity according to another embodiment of the invention.
  • the switching means of the electronic power control device are electrical relays. These electrical relays are located on an electronic power board.
  • the control means of the control interface are connected only to the electronic power control device.
  • the electronic control device for managing the gas supply is connected only to the electronic power control device.
  • No control means of the electrical control assembly controls a member of the gas supply module.
  • the gas supply module is fully controlled by the electronic control device for gas supply management.
  • the electronic control device for managing the gas supply controls at least two gas supply solenoid valves of the at least one gas burner, said at least two solenoid valves being connected in series and upstream of said at least one gas burner. on a gas supply line.
  • a first solenoid valve is a safety means for supplying gas to the at least one gas burner. Said first solenoid valve is constantly open during an operating cycle and is closed upon detection of a malfunction of the domestic cooking oven.
  • a second solenoid valve is a means for regulating the temperature of the oven cooking chamber.
  • the electronic control device for managing the gas supply controls at least one incandescent ignition means of the at least one gas burner.
  • the at least one gas burner may be automatically ignited by the incandescent ignition means disposed proximate to the at least one burner.
  • Said incandescent element allows ignition of the gas by a rise in temperature in a range between 1300 ° C and 1500 ° C.
  • an ionization electrode is adapted to detect the presence of flames in said at least one burner.
  • the ionization electrode is directly connected to the electronic control device for managing the gas supply.
  • the electronic control device for managing the gas supply is adapted to open and close at least one solenoid valve so as to supply all or nothing said at least one gas burner.
  • the heating of the air contained in the muffle is regulated by putting into operation and stopping at least one gas burner and not by a change in gas flow rate supplying said at least one gas burner.
  • the rise in temperature in the cooking chamber is no longer prohibited in the range between 35 ° C and 150 ° C. It can indeed vary easily in this temperature range by simply changing the firing times of the at least one gas burner.
  • the temperature regulation of the cooking chamber is between 35 ° C and 300 ° C in the cooking mode of said oven.
  • the temperature regulation of the cooking chamber is between 450 ° C and 510 ° C in the pyrolytic cleaning mode of said oven.
  • a temperature sensor is connected directly to the electronic power control device to implement the temperature control of the at least one electric heating element and the at least one gas burner.
  • This temperature probe is disposed in the cooking chamber.
  • the electronic power control device is adapted to regulate the temperature of the cooking chamber according to a set temperature by an on / off mode of operation. This operating mode allows the opening and closing of the relays of the electronic power control device to regulate the temperature of the cooking chamber according to the set temperature.
  • the electronic control device for managing the gas supply is a slave of the electronic power control device.
  • control means of a domestic gas cooking oven are identical to those mounted in domestic electric cooking ovens and in this way to achieve economies of scale for the appliance manufacturer.
  • control strips can be almost similar in order to use common part numbers for domestic gas cooking ovens and electric household cooking ovens.
  • said at least one electric heating element of the domestic cooking oven is a grill element mounted in the cooking chamber.
  • the grill element is an electric grill
  • the electronic power control device being adapted to turn on or off the grill element so as to regulate the temperature of the cooking chamber according to a set temperature
  • said at least one gas burner and the grill element being controlled simultaneously by said electronic power control device and the electronic control device for managing the gas supply.
  • the electronic power control device controls at least one switching means to turn on and off said at least one electric heating element.
  • the electronic power control device controls at least one switching means of the electrical power supply of said at least one electric heating element.
  • Said switching means of the electronic power control device is in series with at least one switching means of the electronic control device for managing the supply of gas for supplying and extinguishing said at least one electric heating element.
  • Said at least one switching means of the electronic power control device is upstream of said at least one switching means of the electronic control device for managing the gas supply.
  • a domestic cooking appliance 1 according to the invention.
  • This domestic cooking appliance 1 is such that a range comprising a domestic cooking oven.
  • the domestic cooking oven 1 may also be intended to be integrated into a built-in cabinet.
  • This oven 1 comprises a muffle 2 for receiving the food to be cooked.
  • the front face 3 of the muffle 2 is closed by a door 4, and comprises an upper wall 5, side walls 6, a bottom wall 7 and a bottom wall 8.
  • Said furnace 1 also comprises at least one heating means 9 disposed under the bottom wall 8 of said muffle 2.
  • the muffle 2 could also include several burners 9 below the bottom wall 8 of the muffle 2.
  • the muffle 2 also comprises in this embodiment an electric heating element 10 supplied in all or nothing disposed under the upper wall 5 of the muffle 2.
  • This heating element 10 makes it possible to raise the muffle temperature 2 more quickly in cooking mode.
  • This electric heating element 10 makes it possible to assign a grill function to this cooking oven 1.
  • the domestic cooking oven 1 comprises control means 15 adapted to turn on and off the gas burner 9 and the electric heating element 10 so as to regulate the temperature of the air contained in the muffle 2 as a function of a temperature. deposit.
  • the domestic cooking oven 1 comprises a cooking chamber 2, an electrical control assembly 16 consisting of a control interface 17 and an electronic power control device 18.
  • the electrical control unit 16 is connected in known manner to an electricity source 11 outside the domestic cooking oven 1.
  • Said control interface 17 comprises electromechanical and / or electronic control means 19.
  • the electronic power control device 18 controls by switching means 20 at least one electric heating element 10 and an electronic control device for managing the gas supply 21 of at least one gas burner 9 adapted to heat the gas. cooking chamber 2.
  • the electrical control unit 17 can be used to control either an electric cooking oven or a gas cooking oven.
  • the electronic control device for managing the gas supply 21 is slave to the electronic power control device 18.
  • the switching means 20 of the electronic power control device 18 are electrical relays.
  • the control means 19 of the control interface 17 are connected only to the electronic power control device 18.
  • the control means 19 of the control interface 17 electrically control the electronic power control device 18.
  • the control means 19 of the control interface 17 can not directly control at least one component of the power supply module. 22.
  • the electrical control assembly 16 does not include any component for supplying gas to the at least one gas burner 9.
  • the control means 19 of the control interface 17 do not include, for example, a tap.
  • the electronic control device for managing the gas supply 21 is connected only to the electronic power control device 18.
  • the control of the members included in the gas supply module 22 are controlled solely by the link connecting the electronic control device for managing the gas supply 21 with the electronic control device 18.
  • the electronic control device for managing the gas supply 21 controls at least two solenoid valves 23 for supplying gas to the at least one gas burner 9, said at least two solenoid valves 23 being connected in series and upstream of said at least two a gas burner 9 on a gas supply pipe 24.
  • the electronic control device for managing the gas supply 21 is adapted to open and close at least one solenoid valve 23 so as to supply all or nothing said at least one gas burner 9.
  • a first solenoid valve 23 is a safety means for supplying gas to the at least one gas burner 9. Said first solenoid valve 23 is constantly open during an operating cycle and is closed as soon as a malfunction of the cooking oven is detected. domestic 1.
  • a second solenoid valve 23 is a means for regulating the temperature of the cooking chamber 2 of the oven 1.
  • the control means of the at least two solenoid valves 23 are integrated in the electronic control device for managing the gas supply 21.
  • This electronic control device for managing the gas supply 21 is an electronic card adapted to electronically control opening and closing said at least two solenoid valves 23.
  • the electronic control device for managing the gas supply 21 controls at least one incandescent ignition means 25 of the at least one gas burner 9.
  • Said at least one incandescent ignition means 25 is electric and disposed near the at least one gas burner 9. This electric ignition means 25 is adapted to ignite said at least one gas burner 9 when it is powered in gas.
  • the ignition of the gas is carried out by the rising incandescent element at a temperature of between 1300 ° C. and 1500 ° C. Said incandescent element is fed directly by the electronic control device for managing the gas supply 21.
  • the cooking chamber 2 comprises a temperature probe 26 connected directly to the electronic power control device 18 to implement the temperature regulation of the at least one electric heating element 10 and the at least one gas burner 9.
  • the temperature sensor 26 is adapted to continuously measure the average temperature in the cooking chamber 2.
  • Said temperature sensor 26 makes it possible, among other things, to regulate the temperature in the cooking chamber 2 as a function of the actual temperature measured at the temperature probe 26 and a predetermined set temperature.
  • the gas supply module 22 of the domestic cooking oven 1 will now be described.
  • This gas supply module 22 comprises a gas supply pipe 24 which is connected in known manner to a source of gas 12 outside the domestic cooking oven 1.
  • this gas supply pipe 24 At the inlet of this gas supply pipe 24 is mounted at least two solenoid valves 23. Said at least two solenoid valves 23 open or close the gas supply of the supply line 24 from electrical information emitted by the electronic control device for managing the gas supply 21.
  • said at least two solenoid valves 23 have an open position and a closed position. In the open position, the flow rate of gas entering the gas supply pipe 24 is constant.
  • Said at least two solenoid valves 23 are connected in series by said gas supply pipe 24.
  • Said first solenoid valve 23 is mounted upstream of said second solenoid valve 23 on the gas supply pipe 24.
  • the first solenoid valve 23 having a safety function makes it possible to cut off the gas supply the most upstream.
  • Said at least two solenoid valves 23 are mounted upstream of the at least one gas burner 9 on the gas supply pipe 24.
  • Said at least two solenoid valves 23 comprise opening and closing means for supplying said at least one gas burner 9 in all or nothing.
  • said at least two solenoid valves 23 are controlled by the electronic control device for managing the gas supply 21.
  • Said electronic control device for managing the gas supply 21 is adapted to electrically control the opening and the closing said at least two solenoid valves 23.
  • a traditional regulation of an electric household cooking oven temperature can be implemented from the temperature measured by the temperature sensor 26 and a predetermined set temperature.
  • the temperature regulation of the cooking chamber 2 is between 35 ° C. and 300 ° C in the cooking mode of said oven 1.
  • the temperature regulation of the cooking chamber 2 is between 450 ° C and 510 ° C in the pyrolytic cleaning mode of said oven 1.
  • Maintaining the required setpoint temperature in the cooking chamber 2 is then implemented by the opening and closing alternative of at least one solenoid valve 23, thus allowing the on-off supply of the at least one burner gas 9.
  • Said at least one gas burner 9 may have a power of the order of 2500W.
  • said at least two solenoid valves 23 When said at least two solenoid valves 23 are open, said at least one gas burner 9 is at full power.
  • the flow rate of gas introduced into the gas supply pipe 24 is at the maximum.
  • the presence of the ignition of the at least one incandescent ignition means 25 allows the automatic ignition of the at least one gas burner 9 and at full power.
  • the temperature inside the cooking chamber 2 can be maintained around the set temperature.
  • said at least one control solenoid valve 23 when the temperature in the cooking chamber 2 is greater than the set temperature, said at least one control solenoid valve 23 is closed. When the difference between the temperature in the cooking chamber 2 and the target temperature reaches a predetermined threshold value lower than said set temperature, said at least one control solenoid valve 23 is open to allow the temperature rise of the enclosure cooking 2.
  • an ionization electrode 27 is adapted to detect the presence of flame at the level of the at least one gas burner 9 Said ionization electrode 27 is connected to ionization signal management means integrated into the electronic control device for managing the gas supply 21.
  • said at least one incandescent ignition means 25 is placed at a distance from an ionization electrode 27.
  • the ionization electrode 27 is located at a first end of said at least one gas burner 9 and said at least one incandescent ignition means 25 is located at a second end of the at least one gas burner 9.
  • the first end of the at least one gas burner 9 corresponds to an area located near the first flame, in the firing order, of the at least one gas burner 9 and the second end to a zone located near the last flame, in the order of ignition, of the at least one gas burner 9.
  • said at least one incandescent ignition means 25 is placed near the first flame of the flame path (not shown) of the at least one gas burner 9 and an ionization electrode 27 near the last flame of said flame path of said at least one gas burner 9.
  • Said at least one gas burner 9 comprises a flame path where openings are provided in an internal gas supply ramp allowing the passage of the ignited gas. Said openings of the flame path are provided along the at least one gas burner 9 and where the heat must be diffused in the cooking chamber 2.
  • the internal gas supply ramp of said at least one gas burner 9 of a domestic cooking oven 1 is generally U-shaped.
  • the first flame of the flame path is disposed at one end of the internal supply ramp U-shaped gas of said at least one gas burner 9 and the last flame of the flame path at another end of the U-shaped gas supply inner ramp of said at least one gas burner 9.
  • Said ionization electrode 27 and said at least one incandescent ignition means 25 are situated opposite on the internal gas supply ramp of the at least one gas burner 9.
  • Said at least one incandescent ignition means 25 is placed at the beginning of the internal gas supply ramp of the at least one gas burner 9 and the ionisation electrode 27 at the end of said internal supply ramp. gas of said at least one gas burner 9.
  • the complete ignition of the at least one gas burner 9 is ensured. If a partial or complete ignition failure occurs on said at least one gas burner 9, the ionization electrode 27 detects the non-presence of flame and the signal of said ionization electrode 27 is transmitted to the electronic control device for controlling the gas supply 21 for shutting off the supply of gas to the at least one gas burner 9.
  • the grill element 10 When selecting a combined cooking mode, the grill element 10 is also operated.
  • a grill element 10 is mounted in the cooking chamber 2.
  • the grill element 10 is an electric grill, the electronic power control device 18 being adapted to turn on or off the grill element 10 so as to regulate the temperature of the cooking chamber 2 according to a temperature setpoint, and said at least one gas burner 9 and the grill element 10 being controlled simultaneously by said electronic control device 18.
  • the operation of the grill element 10 in all or nothing is also managed by the electronic power control device 18 and by the control means 19 of the control interface 17 may include means for selecting the cooking modes and means for selecting a set temperature.
  • the electric grill element 10 may comprise two heating resistors making it possible to obtain powers of the order of 1800W with a single heating resistor and 2600W by simultaneously supplying the two heating resistors.
  • a domestic cooking oven according to the invention makes it possible to standardize the control members of an electric cooking oven and a gas cooking oven.
  • the structure of the electric cooking oven and the gas cooking oven may be identical.
  • the domestic cooking oven manufacturer reduces the cost of obtaining a cooking oven according to the invention.
  • the gas supply module is replaceable by an electric heating element to easily convert a gas cooking oven into an electric cooking oven.
  • the heating elements of the gas and electric type are thus considered as interchangeable modules.

Abstract

The oven has a cooking chamber (2), and an electric control assembly (16) constituting a control interface (17) and an electronic power control device (18). The control interface has an electronic and/or electromechanic control unit (19). The device (18) controls an electric heating element (10), a gas supply management control device (21), and a gas burner (9) by a switching unit (20), where the gas burner is adapted to heat the cooking chamber. The assembly (16) controls an electric baking oven or a gas baking oven.

Description

La présente invention concerne un four de cuisson, et de préférence un four de cuisson domestique.The present invention relates to a cooking oven, and preferably a domestic cooking oven.

De manière générale, la présente invention concerne le fonctionnement d'un four de cuisson domestique pendant une séquence de cuisson et également pendant un mode de nettoyage pyrolytique.In general, the present invention relates to the operation of a domestic cooking oven during a cooking sequence and also during a pyrolytic cleaning mode.

Traditionnellement, un four de cuisson domestique connu peut être alimenté en énergie électrique. Ce four de cuisson domestique électrique comprend un moufle, un ou plusieurs éléments chauffants électriques étant adaptés à chauffer l'air contenu dans le moufle.Traditionally, a known domestic cooking oven can be supplied with electrical energy. This electric domestic cooking oven comprises a muffle, one or more electric heating elements being adapted to heat the air contained in the muffle.

Un four de cuisson domestique électrique peut comprendre également une carte électronique de puissance permettant de gérer l'alimentation en énergie des éléments chauffants électriques. La carte électronique de puissance est commandée par des organes de commande disposés sur un bandeau de commande. Ces organes de commande peuvent être par exemple des commutateurs électromécaniques et / ou des commutateurs électroniques.An electric household cooking oven may also include an electronic power board for managing the power supply of the electric heating elements. The electronic power card is controlled by control devices arranged on a control panel. These control members may be, for example, electromechanical switches and / or electronic switches.

Par ailleurs, un four de cuisson domestique à gaz comprend un moufle, un ou plusieurs brûleurs à gaz étant adaptés à chauffer l'air contenu dans le moufle.In addition, a domestic gas cooking oven comprises a muffle, one or more gas burners being adapted to heat the air contained in the muffle.

Ces brûleurs sont généralement disposés sous la paroi inférieure ou la paroi supérieure du moufle.These burners are generally arranged under the bottom wall or the top wall of the muffle.

La température de l'air contenu dans le moufle est généralement régulée par un thermostat commandant une vanne de régulation du débit de gaz alimentant le brûleur à gaz. Cette vanne permet d'augmenter ou de diminuer le débit de gaz alimentant le brûleur à gaz en restant constamment allumé.The temperature of the air contained in the muffle is generally regulated by a thermostat controlling a gas flow control valve supplying the gas burner. This valve makes it possible to increase or decrease the gas flow supplying the gas burner by constantly being lit.

Ces fours de cuisson domestiques à gaz permettent de réguler la température de l'air contenu dans le four à une température de consigne comprise entre 150 et 285°C.These domestic gas cooking ovens make it possible to regulate the temperature of the air contained in the oven at a set temperature of between 150 and 285 ° C.

Cependant, les fours de cuisson domestiques connus ne permettent pas de commander au moins un brûleur à gaz et au moins un élément chauffant électrique à partir de moyens de commande communs.However, known domestic cooking ovens do not allow to control at least one gas burner and at least one electric heating element from common control means.

La présente invention a pour but de proposer un four de cuisson domestique permettant de commander au moins un brûleur à gaz et au moins un élément chauffant électrique à partir de moyens de commande électriques communs. Ainsi, une partie des moyens de commande sont identiques pour un four de cuisson domestique électrique et un four de cuisson domestique à gaz. Les bandeaux de commande des fours de cuisson domestiques électriques et à gaz sont identiques structurellement.The present invention aims to provide a domestic cooking oven for controlling at least one gas burner and at least one electric heating element from common electrical control means. Thus, a portion of the control means are identical for an electric domestic cooking oven and a domestic gas cooking oven. The control panels of domestic electric and gas cooking ovens are structurally identical.

Les moyens de commande électromécaniques et / ou électroniques peuvent être utilisés sur des fours de cuisson domestiques à gaz et électriques. Tandis que les moyens de commande connus par l'homme du métier réalisant la conception de fours domestiques à gaz ne permettent pas de les transposer d'un four de cuisson domestique à gaz à un four de cuisson domestique électrique. Les moyens de commande traditionnels utilisés dans les fours de cuisson domestiques à gaz sont conçus spécifiquement pour alimenter des moyens de chauffage au gaz.The electromechanical and / or electronic control means can be used on domestic gas and electric cooking ovens. While the control means known to those skilled in the art realizing the design of ovens domestic gas cookers do not allow to transpose them from a domestic gas cooking oven to an electric household cooking oven. Traditional control means used in domestic gas cooking ovens are specifically designed to supply gas heating means.

A cet effet, la présente invention vise un four de cuisson domestique comprenant une enceinte de cuisson, un ensemble de commande électrique constitué d'une interface de commande et d'un dispositif de commande électronique de puissance, ladite interface de commande comprenant des moyens de commande électromécaniques et / ou électroniques.For this purpose, the present invention is directed to a domestic cooking oven comprising a cooking chamber, an electric control assembly consisting of a control interface and an electronic power control device, said control interface comprising means for electromechanical and / or electronic control.

Selon l'invention, le dispositif de commande électronique de puissance commande par des moyens de commutation au moins un élément chauffant électrique et un dispositif de commande électronique de gestion de l'alimentation en gaz d'au moins un brûleur à gaz adapté à chauffer l'enceinte de cuisson.According to the invention, the electronic power control device controls, by switching means, at least one electric heating element and an electronic control device for managing the supply of gas to at least one gas burner adapted to heat the gas. cooking chamber.

Ainsi, l'ensemble de commande électrique est commun aux fours de cuisson domestiques électriques et aux fours de cuisson domestiques à gaz. Les composants nécessaires à cet ensemble de commande électrique sont standardisés et achetés par le fabricant à plus grande échelle pour réduire le coût d'obtention d'un four conforme à l'invention.Thus, the electric control assembly is common to electric household cooking ovens and domestic gas cooking ovens. The components required for this electrical control assembly are standardized and purchased by the manufacturer on a larger scale to reduce the cost of obtaining an oven according to the invention.

De cette manière, le fabricant de four de cuisson domestique a la possibilité de concevoir aisément des fours de cuisson comprenant ou non un module d'alimentation en gaz constitué d'organes pour alimenter en gaz au moins un brûleur à gaz. Le module d'alimentation en gaz peut facilement être remplacé par au moins un élément chauffant électrique lors de la conception d'un four de cuisson domestique sans avoir à modifier la structure dudit four. Ledit au moins un élément chauffant se connecte sur le dispositif de commande électronique de puissance à la place du dispositif de commande électronique de gestion de l'alimentation en gaz.In this way, the manufacturer of domestic cooking oven has the ability to easily design cooking ovens with or without a gas supply module consisting of members for supplying gas to at least one gas burner. The gas supply module can easily be replaced by at least one electric heating element when designing a domestic cooking oven without having to modify the structure of said oven. Said at least one heating element connects to the electronic power control device in place of the electronic control device for managing the gas supply.

Le module d'alimentation en gaz est remplaçable par au moins un élément chauffant électrique puisque la régulation de température de l'enceinte de cuisson est identique pour un four de cuisson domestique comprenant au moins un brûleur à gaz ou que des éléments chauffants électriques.The gas supply module is replaceable by at least one electric heating element since the temperature regulation of the cooking chamber is identical for a domestic cooking oven comprising at least one gas burner or electric heating elements.

L'ensemble de commande électrique permet de commander indifféremment un four de cuisson électrique ou un four de cuisson à gaz.The electric control assembly can be used to control either an electric cooking oven or a gas cooking oven.

Dans un mode particulièrement avantageux de l'invention, le dispositif de commande électronique de puissance est implanté sur une première carte électronique et le dispositif de commande électronique de gestion de l'alimentation en gaz est implanté sur une seconde carte électronique. De cette manière, la première carte électronique du dispositif de commande électronique de puissance est identique pour les fours de cuisson domestiques électriques et les fours de cuisson domestiques à gaz.In a particularly advantageous embodiment of the invention, the electronic power control device is implanted on a first electronic card and the electronic control device for managing the gas supply is implanted on a second electronic card. In this way, the first electronic board of the electronic power control device is identical for the cooking ovens domestic electric and domestic gas cooking ovens.

Lesdites deux cartes électroniques peuvent ne former qu'une seule entité selon un autre mode de réalisation de l'invention.Said two electronic cards may form a single entity according to another embodiment of the invention.

En pratique, les moyens de commutation du dispositif de commande électronique de puissance sont des relais électriques. Ces relais électriques sont implantés sur une carte électronique de puissance.In practice, the switching means of the electronic power control device are electrical relays. These electrical relays are located on an electronic power board.

Les moyens de commande de l'interface de commande sont reliés uniquement au dispositif de commande électronique de puissance.The control means of the control interface are connected only to the electronic power control device.

Le dispositif de commande électronique de gestion de l'alimentation en gaz est relié uniquement au dispositif de commande électronique de puissance.The electronic control device for managing the gas supply is connected only to the electronic power control device.

Aucun moyen de commande de l'ensemble de commande électrique ne commande un organe du module d'alimentation en gaz. Le module d'alimentation en gaz est entièrement commandé par le dispositif de commande électronique de gestion d'alimentation en gaz.No control means of the electrical control assembly controls a member of the gas supply module. The gas supply module is fully controlled by the electronic control device for gas supply management.

Le dispositif de commande électronique de gestion de l'alimentation en gaz commande au moins deux électrovannes d'alimentation en gaz du au moins un brûleur à gaz, lesdites au moins deux électrovannes étant montées en série et en amont dudit au moins un brûleur à gaz sur une conduite d'alimentation en gaz.The electronic control device for managing the gas supply controls at least two gas supply solenoid valves of the at least one gas burner, said at least two solenoid valves being connected in series and upstream of said at least one gas burner. on a gas supply line.

Une première électrovanne est un moyen de sécurité pour l'alimentation en gaz du au moins un brûleur à gaz. Ladite première électrovanne est constamment ouverte pendant un cycle de fonctionnement et est fermée dès la détection d'un dysfonctionnement du four de cuisson domestique.A first solenoid valve is a safety means for supplying gas to the at least one gas burner. Said first solenoid valve is constantly open during an operating cycle and is closed upon detection of a malfunction of the domestic cooking oven.

Une seconde électrovanne est un moyen de régulation en température de l'enceinte de cuisson du four.A second solenoid valve is a means for regulating the temperature of the oven cooking chamber.

Dans un mode de réalisation pratique de l'invention, le dispositif de commande électronique de gestion de l'alimentation en gaz commande au moins un moyen d'allumage incandescent du au moins un brûleur à gaz.In a practical embodiment of the invention, the electronic control device for managing the gas supply controls at least one incandescent ignition means of the at least one gas burner.

Ledit au moins un brûleur à gaz peut être allumé automatiquement par le moyen d'allumage incandescent disposé à proximité dudit au moins un brûleur.The at least one gas burner may be automatically ignited by the incandescent ignition means disposed proximate to the at least one burner.

Ledit élément incandescent permet l'allumage du gaz par une montée en température dans une plage comprise entre 1300°C et 1500°C.Said incandescent element allows ignition of the gas by a rise in temperature in a range between 1300 ° C and 1500 ° C.

En outre, une électrode d'ionisation est adaptée à détecter la présence de flammes dans ledit au moins un brûleur. L'électrode d'ionisation est reliée directement au dispositif de commande électronique de gestion de l'alimentation en gaz.In addition, an ionization electrode is adapted to detect the presence of flames in said at least one burner. The ionization electrode is directly connected to the electronic control device for managing the gas supply.

Le dispositif de commande électronique de gestion de l'alimentation en gaz est adapté à ouvrir et fermer au moins une électrovanne de manière à alimenter en tout ou rien ledit au moins un brûleur à gaz.The electronic control device for managing the gas supply is adapted to open and close at least one solenoid valve so as to supply all or nothing said at least one gas burner.

Ainsi, le chauffage de l'air contenu dans le moufle est régulé par la mise en fonctionnement et l'arrêt d'au moins un brûleur à gaz et non pas par une variation de débit du gaz alimentant ledit au moins un brûleur à gaz.Thus, the heating of the air contained in the muffle is regulated by putting into operation and stopping at least one gas burner and not by a change in gas flow rate supplying said at least one gas burner.

La montée en température dans l'enceinte de cuisson n'est plus interdite dans la plage comprise entre 35°C et 150°C. Elle peut en effet varier aisément dans cette plage de températures par simple modification des durées d'allumage dudit au moins un brûleur à gaz.The rise in temperature in the cooking chamber is no longer prohibited in the range between 35 ° C and 150 ° C. It can indeed vary easily in this temperature range by simply changing the firing times of the at least one gas burner.

La régulation de température de l'enceinte de cuisson est comprise entre 35°C et 300°C en mode cuisson dudit four.The temperature regulation of the cooking chamber is between 35 ° C and 300 ° C in the cooking mode of said oven.

La régulation de température de l'enceinte de cuisson est comprise entre 450°C et 510°C en mode de nettoyage pyrolytique dudit four.The temperature regulation of the cooking chamber is between 450 ° C and 510 ° C in the pyrolytic cleaning mode of said oven.

Une sonde de température est reliée directement au dispositif de commande électronique de puissance pour mettre en oeuvre la régulation de température du au moins un élément chauffant électrique et du au moins un brûleur à gaz.A temperature sensor is connected directly to the electronic power control device to implement the temperature control of the at least one electric heating element and the at least one gas burner.

Cette sonde de température est disposée dans l'enceinte de cuisson. Le dispositif de commande électronique de puissance est adapté à réguler la température de l'enceinte de cuisson en fonction d'une température de consigne par un mode de fonctionnement tout ou rien. Ce mode de fonctionnement permet l'ouverture et la fermeture des relais du dispositif de commande électronique de puissance pour réguler la température de l'enceinte de cuisson en fonction de la température de consigne.This temperature probe is disposed in the cooking chamber. The electronic power control device is adapted to regulate the temperature of the cooking chamber according to a set temperature by an on / off mode of operation. This operating mode allows the opening and closing of the relays of the electronic power control device to regulate the temperature of the cooking chamber according to the set temperature.

Le dispositif de commande électronique de gestion de l'alimentation en gaz est esclave du dispositif de commande électronique de puissance.The electronic control device for managing the gas supply is a slave of the electronic power control device.

En outre, les moyens de commande d'un four de cuisson domestique à gaz sont identiques à ceux montés dans des fours de cuisson domestiques électriques et de cette manière de réaliser des économies d'échelle pour le constructeur d'appareils électroménager.In addition, the control means of a domestic gas cooking oven are identical to those mounted in domestic electric cooking ovens and in this way to achieve economies of scale for the appliance manufacturer.

Par ailleurs, les bandeaux de commande peuvent être quasiment similaires afin d'utiliser des références de pièces communes pour les fours de cuisson domestiques à gaz et les fours de cuisson domestiques électriques.In addition, the control strips can be almost similar in order to use common part numbers for domestic gas cooking ovens and electric household cooking ovens.

De préférence, ledit au moins un élément chauffant électrique du four de cuisson domestique est un élément de gril monté dans l'enceinte de cuisson.Preferably, said at least one electric heating element of the domestic cooking oven is a grill element mounted in the cooking chamber.

L'élément de grill est un grill électrique, le dispositif de commande électronique de puissance étant adapté à allumer ou éteindre l'élément de grill de manière à réguler la température de l'enceinte de cuisson en fonction d'une température de consigne, et ledit au moins un brûleur à gaz et l'élément de grill étant pilotés en simultané par ledit dispositif de commande électronique de puissance et le dispositif de commande électronique de gestion de l'alimentation en gaz.The grill element is an electric grill, the electronic power control device being adapted to turn on or off the grill element so as to regulate the temperature of the cooking chamber according to a set temperature, and said at least one gas burner and the grill element being controlled simultaneously by said electronic power control device and the electronic control device for managing the gas supply.

Dans un mode de réalisation de l'invention, le dispositif de commande électronique de puissance commande au moins un moyen de commutation pour allumer et éteindre ledit au moins un élément chauffant électrique.In one embodiment of the invention, the electronic power control device controls at least one switching means to turn on and off said at least one electric heating element.

Dans un autre mode de réalisation de l'invention, le dispositif de commande électronique de puissance commande au moins un moyen de commutation de l'alimentation en énergie électrique dudit au moins un élément chauffant électrique. Ledit moyen de commutation du dispositif de commande électronique de puissance est en série avec au moins un moyen de commutation du dispositif de commande électronique de gestion de l'alimentation en gaz pour alimenter et éteindre ledit au moins un élément chauffant électrique. Ledit au moins un moyen de commutation du dispositif de commande électronique de puissance est en amont dudit au moins un moyen de commutation du dispositif de commande électronique de gestion de l'alimentation en gaz.In another embodiment of the invention, the electronic power control device controls at least one switching means of the electrical power supply of said at least one electric heating element. Said switching means of the electronic power control device is in series with at least one switching means of the electronic control device for managing the supply of gas for supplying and extinguishing said at least one electric heating element. Said at least one switching means of the electronic power control device is upstream of said at least one switching means of the electronic control device for managing the gas supply.

D'autres particularités et avantages de l'invention apparaîtront encore dans la description ci-après.Other features and advantages of the invention will become apparent in the description below.

A l'unique dessin annexé, donné à titre d'exemple non limitatif :

  • la figure 1 est une vue en coupe et en élévation d'un appareil de cuisson domestique conforme à l'invention.
In the only appended drawing, given by way of non-limiting example:
  • Figure 1 is a sectional elevational view of a domestic cooking appliance according to the invention.

On va décrire tout d'abord, en référence à la figure 1, un appareil de cuisson domestique 1 conforme à l'invention. Cet appareil de cuisson domestique 1 est tel qu'une cuisinière comprenant un four de cuisson domestique.We will first describe, with reference to Figure 1, a domestic cooking appliance 1 according to the invention. This domestic cooking appliance 1 is such that a range comprising a domestic cooking oven.

Le four de cuisson domestique 1 peut aussi être destiné à être intégré dans un meuble d'encastrement.The domestic cooking oven 1 may also be intended to be integrated into a built-in cabinet.

Ce four 1 comprend un moufle 2 destiné à recevoir les aliments à cuire. La face frontale 3 du moufle 2 est fermée par une porte 4, et comprend une paroi supérieure 5, des parois latérales 6, une paroi de fond 7 et une paroi inférieure 8.This oven 1 comprises a muffle 2 for receiving the food to be cooked. The front face 3 of the muffle 2 is closed by a door 4, and comprises an upper wall 5, side walls 6, a bottom wall 7 and a bottom wall 8.

Ledit four 1 comprend aussi au moins un moyen de chauffage 9 disposé sous la paroi inférieure 8 dudit moufle 2. Le moyen de chauffage 9 disposé sous la paroi inférieure 8 du moufle 2, tel qu'illustré sur la figure 1, est un brûleur à gaz alimenté en tout ou rien.Said furnace 1 also comprises at least one heating means 9 disposed under the bottom wall 8 of said muffle 2. The heating means 9 disposed under the bottom wall 8 of the muffle 2, as illustrated in FIG. gas powered all or nothing.

Dans ce mode de réalisation, un seul brûleur à gaz 9 a été illustré. Bien entendu, le moufle 2 pourrait également comporter plusieurs brûleurs 9 en dessous de la paroi inférieure 8 du moufle 2.In this embodiment, a single gas burner 9 has been illustrated. Of course, the muffle 2 could also include several burners 9 below the bottom wall 8 of the muffle 2.

Le moufle 2 comporte également dans ce mode de réalisation un élément chauffant électrique 10 alimenté en tout ou rien disposé sous la paroi supérieure 5 du moufle 2. Cet élément chauffant 10 permet d'élever la température du moufle 2 plus rapidement en mode cuisson. Cet élément chauffant électrique 10 permet d'attribuer une fonction de grill à ce four de cuisson 1.The muffle 2 also comprises in this embodiment an electric heating element 10 supplied in all or nothing disposed under the upper wall 5 of the muffle 2. This heating element 10 makes it possible to raise the muffle temperature 2 more quickly in cooking mode. This electric heating element 10 makes it possible to assign a grill function to this cooking oven 1.

Bien entendu, l'ensemble est décrit dans un boîtier d'appareil qui n'a pas besoin d'être décrit ici.Of course, the assembly is described in a device housing that does not need to be described here.

En outre, l'ensemble des autres composants nécessaires au fonctionnement d'un appareil de cuisson domestique alimenté en gaz, tels que, par exemple, les moyens de ventilation, et d'isolation ne sont pas représentés ou décrits dès lors qu'ils peuvent être identiques à ceux bien connus de l'homme du métier dans ce domaine.In addition, all the other components necessary for the operation of a gas-fired domestic cooking appliance, such as, for example, the ventilation and insulation means, are not shown or described since they can be identical to those well known to those skilled in this field.

Le four de cuisson domestique 1 comprend des moyens de commande 15 adaptés à allumer et éteindre le brûleur à gaz 9 et l'élément chauffant électrique 10 de manière à réguler la température de l'air contenu dans le moufle 2 en fonction d'une température de consigne.The domestic cooking oven 1 comprises control means 15 adapted to turn on and off the gas burner 9 and the electric heating element 10 so as to regulate the temperature of the air contained in the muffle 2 as a function of a temperature. deposit.

Le four de cuisson domestique 1 comprend une enceinte de cuisson 2, un ensemble de commande électrique 16 constitué d'une interface de commande 17 et d'un dispositif de commande électronique de puissance 18.The domestic cooking oven 1 comprises a cooking chamber 2, an electrical control assembly 16 consisting of a control interface 17 and an electronic power control device 18.

L'ensemble de commande électrique 16 est connecté de manière connue à une source d'électricité 11 extérieure au four de cuisson domestique 1.The electrical control unit 16 is connected in known manner to an electricity source 11 outside the domestic cooking oven 1.

Ladite interface de commande 17 comprend des moyens de commande électromécaniques et / ou électroniques 19.Said control interface 17 comprises electromechanical and / or electronic control means 19.

Le dispositif de commande électronique de puissance 18 commande par des moyens de commutation 20 au moins un élément chauffant électrique 10 et un dispositif de commande électronique de gestion de l'alimentation en gaz 21 d'au moins un brûleur à gaz 9 adapté à chauffer l'enceinte de cuisson 2.The electronic power control device 18 controls by switching means 20 at least one electric heating element 10 and an electronic control device for managing the gas supply 21 of at least one gas burner 9 adapted to heat the gas. cooking chamber 2.

L'ensemble de commande électrique 17 permet de commander indifféremment un four de cuisson électrique ou un four de cuisson à gaz.The electrical control unit 17 can be used to control either an electric cooking oven or a gas cooking oven.

Le dispositif de commande électronique de gestion de l'alimentation en gaz 21 est esclave du dispositif de commande électronique de puissance 18.The electronic control device for managing the gas supply 21 is slave to the electronic power control device 18.

Les moyens de commutation 20 du dispositif de commande électronique de puissance 18 sont des relais électriques.The switching means 20 of the electronic power control device 18 are electrical relays.

Les moyens de commande 19 de l'interface de commande 17 sont reliés uniquement au dispositif de commande électronique de puissance 18.The control means 19 of the control interface 17 are connected only to the electronic power control device 18.

Les moyens de commande 19 de l'interface de commande 17 commandent électriquement le dispositif de commande électronique de puissance 18. Les moyens de commande 19 de l'interface de commande 17 ne peuvent pas commander directement au moins un organe du module d'alimentation en gaz 22. L'ensemble de commande électrique 16 ne comprend aucun composant pour l'alimentation en gaz du au moins un brûleur à gaz 9. Les moyens de commande 19 de l'interface de commande 17 ne comprennent pas par exemple un robinet.The control means 19 of the control interface 17 electrically control the electronic power control device 18. The control means 19 of the control interface 17 can not directly control at least one component of the power supply module. 22. The electrical control assembly 16 does not include any component for supplying gas to the at least one gas burner 9. The control means 19 of the control interface 17 do not include, for example, a tap.

Le dispositif de commande électronique de gestion de l'alimentation en gaz 21 est relié uniquement au dispositif de commande électronique de puissance 18.The electronic control device for managing the gas supply 21 is connected only to the electronic power control device 18.

La commande des organes compris dans le module d'alimentation en gaz 22 sont commandés uniquement par la liaison reliant le dispositif de commande électronique de gestion de l'alimentation en gaz 21 avec le dispositif de commande électronique de puissance 18.The control of the members included in the gas supply module 22 are controlled solely by the link connecting the electronic control device for managing the gas supply 21 with the electronic control device 18.

Le dispositif de commande électronique de gestion de l'alimentation en gaz 21 commande au moins deux électrovannes 23 d'alimentation en gaz du au moins un brûleur à gaz 9, lesdites au moins deux électrovannes 23 étant montées en série et en amont dudit au moins un brûleur à gaz 9 sur une conduite d'alimentation en gaz 24.The electronic control device for managing the gas supply 21 controls at least two solenoid valves 23 for supplying gas to the at least one gas burner 9, said at least two solenoid valves 23 being connected in series and upstream of said at least two a gas burner 9 on a gas supply pipe 24.

Le dispositif de commande électronique de gestion de l'alimentation en gaz 21 est adapté à ouvrir et fermer au moins une électrovanne 23 de manière à alimenter en tout ou rien ledit au moins un brûleur à gaz 9.The electronic control device for managing the gas supply 21 is adapted to open and close at least one solenoid valve 23 so as to supply all or nothing said at least one gas burner 9.

Une première électrovanne 23 est un moyen de sécurité pour l'alimentation en gaz du au moins un brûleur à gaz 9. Ladite première électrovanne 23 est constamment ouverte pendant un cycle de fonctionnement et est fermée dès la détection d'un dysfonctionnement du four de cuisson domestique 1.A first solenoid valve 23 is a safety means for supplying gas to the at least one gas burner 9. Said first solenoid valve 23 is constantly open during an operating cycle and is closed as soon as a malfunction of the cooking oven is detected. domestic 1.

Une seconde électrovanne 23 est un moyen de régulation en température de l'enceinte de cuisson 2 du four 1.A second solenoid valve 23 is a means for regulating the temperature of the cooking chamber 2 of the oven 1.

Les moyens de commande desdites au moins deux électrovannes 23 sont intégrés dans le dispositif de commande électronique de gestion de l'alimentation en gaz 21. Ce dispositif de commande électronique de gestion de l'alimentation en gaz 21 est une carte électronique adaptée à commander électroniquement l'ouverture et la fermeture desdites au moins deux électrovannes 23.The control means of the at least two solenoid valves 23 are integrated in the electronic control device for managing the gas supply 21. This electronic control device for managing the gas supply 21 is an electronic card adapted to electronically control opening and closing said at least two solenoid valves 23.

Le dispositif de commande électronique de gestion de l'alimentation en gaz 21 commande au moins un moyen d'allumage incandescent 25 du au moins un brûleur à gaz 9.The electronic control device for managing the gas supply 21 controls at least one incandescent ignition means 25 of the at least one gas burner 9.

Ledit au moins un moyen d'allumage incandescent 25 est électrique et disposé à proximité du au moins un brûleur à gaz 9. Ce moyen d'allumage électrique 25 est adapté à allumer ledit au moins un brûleur à gaz 9 lorsque celui-ci est alimenté en gaz.Said at least one incandescent ignition means 25 is electric and disposed near the at least one gas burner 9. This electric ignition means 25 is adapted to ignite said at least one gas burner 9 when it is powered in gas.

En pratique, l'allumage du gaz est réalisé par l'élément incandescent montant à une température comprise entre 1300°C et 1500°C. Ledit élément incandescent est alimenté directement par le dispositif de commande électronique de gestion de l'alimentation en gaz 21.In practice, the ignition of the gas is carried out by the rising incandescent element at a temperature of between 1300 ° C. and 1500 ° C. Said incandescent element is fed directly by the electronic control device for managing the gas supply 21.

Enfin, l'enceinte de cuisson 2 comprend une sonde de température 26 reliée directement au dispositif de commande électronique de puissance 18 pour mettre en oeuvre la régulation de température du au moins un élément chauffant électrique 10 et du au moins un brûleur à gaz 9.Finally, the cooking chamber 2 comprises a temperature probe 26 connected directly to the electronic power control device 18 to implement the temperature regulation of the at least one electric heating element 10 and the at least one gas burner 9.

La sonde de température 26 est adaptée à mesurer en permanence la température moyenne dans l'enceinte de cuisson 2.The temperature sensor 26 is adapted to continuously measure the average temperature in the cooking chamber 2.

Ladite sonde de température 26 permet entre autre de réguler la température dans l'enceinte de cuisson 2 en fonction de la température réelle mesurée au niveau de la sonde de température 26 et d'une température de consigne prédéterminée.Said temperature sensor 26 makes it possible, among other things, to regulate the temperature in the cooking chamber 2 as a function of the actual temperature measured at the temperature probe 26 and a predetermined set temperature.

On va décrire à présent le module d'alimentation en gaz 22 du four de cuisson domestique 1.The gas supply module 22 of the domestic cooking oven 1 will now be described.

Ce module d'alimentation en gaz 22 comprend une conduite d'alimentation en gaz 24 qui est connectée de manière connue à une source de gaz 12 extérieure au four de cuisson domestique 1.This gas supply module 22 comprises a gas supply pipe 24 which is connected in known manner to a source of gas 12 outside the domestic cooking oven 1.

A l'entrée de cette conduite d'alimentation en gaz 24 est montée au moins deux électrovannes 23. Lesdites aux moins deux électrovannes 23 permettent d'ouvrir ou de fermer l'alimentation en gaz de la conduite d'alimentation 24 à partir d'informations électriques émises par le dispositif de commande électronique de gestion de l'alimentation en gaz 21.At the inlet of this gas supply pipe 24 is mounted at least two solenoid valves 23. Said at least two solenoid valves 23 open or close the gas supply of the supply line 24 from electrical information emitted by the electronic control device for managing the gas supply 21.

Ici, lesdites aux moins deux électrovannes 23 possèdent une position ouverte et une position fermée. En position ouverte, le débit de gaz entrant dans la conduite d'alimentation en gaz 24 est constant.Here, said at least two solenoid valves 23 have an open position and a closed position. In the open position, the flow rate of gas entering the gas supply pipe 24 is constant.

Sur la conduite d'alimentation en gaz 24 sont montés lesdites aux moins deux électrovannes 23 et ledit au moins un brûleur à gaz 9.On the gas supply pipe 24 are mounted said at least two solenoid valves 23 and said at least one gas burner 9.

Lesdites aux moins deux électrovannes 23 sont reliées en série par ladite conduite d'alimentation en gaz 24.Said at least two solenoid valves 23 are connected in series by said gas supply pipe 24.

Ladite première électrovanne 23 est montée en amont de ladite seconde électrovanne 23 sur la conduite d'alimentation en gaz 24. La première électrovanne 23 ayant une fonction de sécurité permet de couper le plus en amont l'arrivée de gaz.Said first solenoid valve 23 is mounted upstream of said second solenoid valve 23 on the gas supply pipe 24. The first solenoid valve 23 having a safety function makes it possible to cut off the gas supply the most upstream.

Lesdites aux moins deux électrovannes 23 sont montées en amont du au moins un brûleur à gaz 9 sur la conduite d'alimentation en gaz 24.Said at least two solenoid valves 23 are mounted upstream of the at least one gas burner 9 on the gas supply pipe 24.

Lesdites au moins deux électrovannes 23 comprennent des moyens d'ouverture et de fermeture de manière à alimenter ledit au moins un brûleur à gaz 9 en tout ou rien.Said at least two solenoid valves 23 comprise opening and closing means for supplying said at least one gas burner 9 in all or nothing.

Ici, lesdites aux moins deux électrovannes 23 sont commandées par le dispositif de commande électronique de gestion de l'alimentation en gaz 21. Ledit dispositif de commande électronique de gestion de l'alimentation en gaz 21 est adapté à commander électriquement l'ouverture et la fermeture desdites aux moins deux électrovannes 23.Here, said at least two solenoid valves 23 are controlled by the electronic control device for managing the gas supply 21. Said electronic control device for managing the gas supply 21 is adapted to electrically control the opening and the closing said at least two solenoid valves 23.

En pratique, une régulation traditionnelle d'un four de cuisson domestique électrique de la température peut être mise en oeuvre à partir de la température mesurée par la sonde de température 26 et d'une température de consigne prédéterminée.In practice, a traditional regulation of an electric household cooking oven temperature can be implemented from the temperature measured by the temperature sensor 26 and a predetermined set temperature.

La régulation de température de l'enceinte de cuisson 2 est comprise entre 35°C et 300°C en mode cuisson dudit four 1.The temperature regulation of the cooking chamber 2 is between 35 ° C. and 300 ° C in the cooking mode of said oven 1.

La régulation de température de l'enceinte de cuisson 2 est comprise entre 450°C et 510°C en mode de nettoyage pyrolytique dudit four 1.The temperature regulation of the cooking chamber 2 is between 450 ° C and 510 ° C in the pyrolytic cleaning mode of said oven 1.

Le maintien de la température de consigne requise dans l'enceinte de cuisson 2 est ensuite mise en oeuvre par l'ouverture et la fermeture alternative d'au moins une électrovanne 23, permettant ainsi l'alimentation en tout ou rien du au moins un brûleur à gaz 9.Maintaining the required setpoint temperature in the cooking chamber 2 is then implemented by the opening and closing alternative of at least one solenoid valve 23, thus allowing the on-off supply of the at least one burner gas 9.

Ledit au moins un brûleur à gaz 9 peut avoir une puissance de l'ordre de 2500W.Said at least one gas burner 9 may have a power of the order of 2500W.

Lorsque lesdites au moins deux électrovannes 23 sont ouvertes, ledit au moins un brûleur à gaz 9 est à pleine puissance. Le débit de gaz introduit dans la conduite d'alimentation en gaz 24 est au maximum.When said at least two solenoid valves 23 are open, said at least one gas burner 9 is at full power. The flow rate of gas introduced into the gas supply pipe 24 is at the maximum.

La présence de l'allumage du au moins un moyen d'allumage incandescent 25 permet l'allumage automatique du au moins un brûleur à gaz 9 et à pleine puissance.The presence of the ignition of the at least one incandescent ignition means 25 allows the automatic ignition of the at least one gas burner 9 and at full power.

En modifiant la durée d'allumage du au moins un brûleur à gaz 9, la température à l'intérieur de l'enceinte de cuisson 2 peut être maintenue autour de la température de consigne.By changing the duration of ignition of the at least one gas burner 9, the temperature inside the cooking chamber 2 can be maintained around the set temperature.

Plus précisément, lorsque la température dans l'enceinte de cuisson 2 est supérieure à la température de consigne, ladite au moins une électrovanne de régulation 23 est fermée. Lorsque la différence entre la température dans l'enceinte de cuisson 2 et la température de consigne atteint une valeur seuil prédéterminée inférieure à ladite température de consigne, ladite au moins une électrovanne de régulation 23 est ouverte pour permettre la montée en température de l'enceinte de cuisson 2.More specifically, when the temperature in the cooking chamber 2 is greater than the set temperature, said at least one control solenoid valve 23 is closed. When the difference between the temperature in the cooking chamber 2 and the target temperature reaches a predetermined threshold value lower than said set temperature, said at least one control solenoid valve 23 is open to allow the temperature rise of the enclosure cooking 2.

Afin d'assurer la sécurité du four 1 en cas d'extinction de la flamme du au moins un brûleur à gaz 9, une électrode d'ionisation 27 est adaptée à détecter la présence de flamme au niveau du au moins un brûleur à gaz 9. Ladite électrode d'ionisation 27 est connectée à des moyens de gestion du signal d'ionisation intégrés dans le dispositif de commande électronique de gestion de l'alimentation en gaz 21.In order to ensure the safety of the furnace 1 in the event of extinction of the flame of the at least one gas burner 9, an ionization electrode 27 is adapted to detect the presence of flame at the level of the at least one gas burner 9 Said ionization electrode 27 is connected to ionization signal management means integrated into the electronic control device for managing the gas supply 21.

Par ailleurs, pour déceler les problèmes d'inter-allumage, c'est-à-dire l'allumage partiel du brûleur, ledit au moins un moyen d'allumage incandescent 25 est placé à distance d'une électrode d'ionisation 27.Furthermore, to detect inter-ignition problems, that is to say the partial ignition of the burner, said at least one incandescent ignition means 25 is placed at a distance from an ionization electrode 27.

L'électrode d'ionisation 27 est située à une première extrémité dudit au moins un brûleur à gaz 9 et ledit au moins un moyen d'allumage incandescent 25 est situé à une seconde extrémité du au moins un brûleur à gaz 9.The ionization electrode 27 is located at a first end of said at least one gas burner 9 and said at least one incandescent ignition means 25 is located at a second end of the at least one gas burner 9.

La première extrémité dudit au moins un brûleur à gaz 9 correspond à une zone située à proximité de la première flamme, dans l'ordre d'allumage, dudit au moins un brûleur à gaz 9 et la seconde extrémité à une zone située à proximité de la dernière flamme, dans l'ordre d'allumage, dudit au moins un brûleur à gaz 9.The first end of the at least one gas burner 9 corresponds to an area located near the first flame, in the firing order, of the at least one gas burner 9 and the second end to a zone located near the last flame, in the order of ignition, of the at least one gas burner 9.

Préférentiellement, ledit au moins un moyen d'allumage incandescent 25 est placé à proximité de la première flamme du chemin de flammes (non représenté) du au moins un brûleur à gaz 9 et une électrode d'ionisation 27 à proximité de la dernière flamme dudit chemin de flammes dudit au moins un brûleur à gaz 9.Preferably, said at least one incandescent ignition means 25 is placed near the first flame of the flame path (not shown) of the at least one gas burner 9 and an ionization electrode 27 near the last flame of said flame path of said at least one gas burner 9.

Ledit au moins un brûleur à gaz 9 comprend un chemin de flammes où des ouvertures sont ménagées dans une rampe interne d'alimentation en gaz permettant le passage du gaz enflammé. Lesdites ouvertures du chemin de flammes sont ménagées le long du au moins un brûleur à gaz 9 et où la chaleur doit être diffusée dans l'enceinte de cuisson 2.Said at least one gas burner 9 comprises a flame path where openings are provided in an internal gas supply ramp allowing the passage of the ignited gas. Said openings of the flame path are provided along the at least one gas burner 9 and where the heat must be diffused in the cooking chamber 2.

La rampe interne d'alimentation en gaz dudit au moins un brûleur à gaz 9 d'un four de cuisson domestique 1 a généralement une forme en U. La première flamme du chemin de flammes est disposée à une extrémité de la rampe interne d'alimentation en gaz en forme de U dudit au moins un brûleur à gaz 9 et la dernière flamme du chemin de flammes à une autre extrémité de la rampe interne d'alimentation en gaz en forme de U dudit au moins un brûleur à gaz 9.The internal gas supply ramp of said at least one gas burner 9 of a domestic cooking oven 1 is generally U-shaped. The first flame of the flame path is disposed at one end of the internal supply ramp U-shaped gas of said at least one gas burner 9 and the last flame of the flame path at another end of the U-shaped gas supply inner ramp of said at least one gas burner 9.

Ladite électrode d'ionisation 27 et ledit au moins un moyen d'allumage incandescent 25 sont situés à l'opposé sur la rampe interne d'alimentation en gaz du au moins un brûleur à gaz 9.Said ionization electrode 27 and said at least one incandescent ignition means 25 are situated opposite on the internal gas supply ramp of the at least one gas burner 9.

Ledit au moins un moyen d'allumage incandescent 25 est placé au début de la rampe interne d'alimentation en gaz du au moins un brûleur à gaz 9 et l'électrode d'ionisation 27 à la fin de ladite rampe interne d'alimentation en gaz dudit au moins un brûleur à gaz 9.Said at least one incandescent ignition means 25 is placed at the beginning of the internal gas supply ramp of the at least one gas burner 9 and the ionisation electrode 27 at the end of said internal supply ramp. gas of said at least one gas burner 9.

Ainsi, l'allumage complet du au moins un brûleur à gaz 9 est assuré. Si une défaillance d'allumage partiel ou complet intervient sur ledit au moins un brûleur à gaz 9, l'électrode d'ionisation 27 détecte la non présence de flamme et le signal de ladite électrode d'ionisation 27 est transmis au dispositif de commande électronique de gestion de l'alimentation en gaz 21 pour couper l'alimentation en gaz du au moins un brûleur à gaz 9.Thus, the complete ignition of the at least one gas burner 9 is ensured. If a partial or complete ignition failure occurs on said at least one gas burner 9, the ionization electrode 27 detects the non-presence of flame and the signal of said ionization electrode 27 is transmitted to the electronic control device for controlling the gas supply 21 for shutting off the supply of gas to the at least one gas burner 9.

Lors d'une sélection d'un mode de cuisson combiné, l'élément de grill 10 est également mis en fonctionnement.When selecting a combined cooking mode, the grill element 10 is also operated.

Un élément de grill 10 est monté dans l'enceinte de cuisson 2.A grill element 10 is mounted in the cooking chamber 2.

L'élément de grill 10 est un grill électrique, le dispositif de commande électronique de puissance 18 étant adapté à allumer ou éteindre l'élément de grill 10 de manière à réguler la température de l'enceinte de cuisson 2 en fonction d'une température de consigne, et ledit au moins un brûleur à gaz 9 et l'élément de grill 10 étant pilotés en simultané par ledit dispositif de commande électronique de puissance 18.The grill element 10 is an electric grill, the electronic power control device 18 being adapted to turn on or off the grill element 10 so as to regulate the temperature of the cooking chamber 2 according to a temperature setpoint, and said at least one gas burner 9 and the grill element 10 being controlled simultaneously by said electronic control device 18.

Le fonctionnement de l'élément de grill 10 en tout ou rien est également géré par le dispositif de commande électronique de puissance 18 et par les moyens de commande 19 de l'interface de commande 17 pouvant comprendre un moyen de sélection des modes de cuisson et un moyen de sélection d'une température de consigne.The operation of the grill element 10 in all or nothing is also managed by the electronic power control device 18 and by the control means 19 of the control interface 17 may include means for selecting the cooking modes and means for selecting a set temperature.

L'élément de grill 10 électrique peut comprendre deux résistances chauffantes permettant d'obtenir des puissances de l'ordre de 1800W avec une seule résistance chauffante et de 2600W en alimentant simultanément les deux résistances chauffantes.The electric grill element 10 may comprise two heating resistors making it possible to obtain powers of the order of 1800W with a single heating resistor and 2600W by simultaneously supplying the two heating resistors.

Un four de cuisson domestique conforme à l'invention permet de standardiser les organes de commande d'un four de cuisson électrique et d'un four de cuisson à gaz. En outre, la structure du four de cuisson électrique et du four de cuisson à gaz peut être identique. De cette manière, le fabricant de four de cuisson domestique réduit le coût d'obtention d'un four de cuisson conforme à l'invention. Le module d'alimentation en gaz est remplaçable par un élément chauffant électrique pour transformer aisément un four de cuisson à gaz en four de cuisson électrique. Les éléments chauffants de type gaz et électriques sont ainsi considérés comme des modules interchangeables.A domestic cooking oven according to the invention makes it possible to standardize the control members of an electric cooking oven and a gas cooking oven. In addition, the structure of the electric cooking oven and the gas cooking oven may be identical. In this way, the domestic cooking oven manufacturer reduces the cost of obtaining a cooking oven according to the invention. The gas supply module is replaceable by an electric heating element to easily convert a gas cooking oven into an electric cooking oven. The heating elements of the gas and electric type are thus considered as interchangeable modules.

Bien entendu, de nombreuses modifications peuvent être apportées aux exemples de réalisation décrits ci-dessus sans sortir du cadre de l'invention.Of course, many modifications can be made to the embodiments described above without departing from the scope of the invention.

Claims (11)

Four de cuisson domestique comprenant une enceinte de cuisson (2), un ensemble de commande électrique (16) constitué d'une interface de commande (17) et d'un dispositif de commande électronique de puissance (18), ladite interface de commande (17) comprenant des moyens de commande électromécaniques et / ou électroniques (19), caractérisé en que le dispositif de commande électronique de puissance (18) commande par des moyens de commutation (20) au moins un élément chauffant électrique (10) et un dispositif de commande électronique de gestion de l'alimentation en gaz (21) d'au moins un brûleur à gaz (9) adapté à chauffer l'enceinte de cuisson (2).Domestic cooking oven comprising a cooking chamber (2), an electric control assembly (16) consisting of a control interface (17) and an electronic power control device (18), said control interface ( 17) comprising electromechanical and / or electronic control means (19), characterized in that the electronic power control device (18) controls by switching means (20) at least one electric heating element (10) and a device electronic control device for managing the gas supply (21) of at least one gas burner (9) adapted to heat the cooking chamber (2). Four de cuisson domestique selon la revendication 1, caractérisé en ce que l'ensemble de commande électrique (16) permet de commander indifféremment un four de cuisson électrique ou un four de cuisson à gaz.Domestic cooking oven according to claim 1, characterized in that the electrical control unit (16) can be used to control either an electric cooking oven or a gas cooking oven. Four de cuisson domestique selon la revendication 1 ou 2, caractérisé en ce que les moyens de commutation (20) du dispositif de commande électronique de puissance (18) sont des relais électriques.Domestic cooking oven according to claim 1 or 2, characterized in that the switching means (20) of the electronic power control device (18) are electrical relays. Four de cuisson domestique selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les moyens de commande (19) de l'interface de commande (17) sont reliés uniquement au dispositif de commande électronique de puissance (18).Domestic cooking oven according to any one of claims 1 to 3, characterized in that the control means (19) of the control interface (17) are connected only to the electronic power control device (18). Four de cuisson domestique selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le dispositif de commande électronique de gestion de l'alimentation en gaz (21) est relié uniquement au dispositif de commande électronique de puissance (18).Domestic cooking oven according to any one of claims 1 to 4, characterized in that the electronic control device for managing the gas supply (21) is connected only to the electronic power control device (18). Four de cuisson domestique selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le dispositif de commande électronique de gestion de l'alimentation en gaz (21) commande au moins deux électrovannes (23) d'alimentation en gaz du au moins un brûleur à gaz (9), lesdites au moins deux électrovannes (23) étant montées en série et en amont dudit au moins un brûleur à gaz (9) sur une conduite d'alimentation en gaz (24).Domestic cooking oven according to any one of claims 1 to 5, characterized in that the electronic control device for managing the gas supply (21) controls at least two solenoid valves (23) for supplying gas from the minus one gas burner (9), said at least two solenoid valves (23) being connected in series and upstream of said at least one gas burner (9) on a gas supply line (24). Four de cuisson domestique selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le dispositif de commande électronique de gestion de l'alimentation en gaz (21) commande au moins un moyen d'allumage incandescent (25) du au moins un brûleur à gaz (9).Domestic cooking oven according to one of Claims 1 to 6, characterized in that the electronic control device for controlling the supply of gas (21) controls at least one incandescent ignition means (25) of the at least one a gas burner (9). Four de cuisson domestique selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le dispositif de commande électronique de gestion de l'alimentation en gaz (21) est adapté à ouvrir et fermer au moins une électrovanne (23) de manière à alimenter en tout ou rien ledit au moins un brûleur à gaz (9).Domestic cooking oven according to one of Claims 1 to 7, characterized in that the electronic control device for the management of the gas supply (21) is adapted to open and close at least one solenoid valve (23) so as to supply all or nothing said at least one gas burner (9). Four de cuisson domestique selon l'une quelconque des revendications 1 à 8, caractérisé en ce qu'une sonde de température (26) est reliée directement au dispositif de commande électronique de puissance (18) pour mettre en oeuvre la régulation de température du au moins un élément chauffant électrique (10) et du au moins un brûleur à gaz (9).Domestic cooking oven according to one of Claims 1 to 8, characterized in that a temperature sensor (26) is directly connected to the electronic power control device (18) for implementing the temperature control from at least one electric heating element (10) and the at least one gas burner (9). Four de cuisson domestique selon l'une quelconque des revendications 1 à 9, caractérisé en ce que le dispositif de commande électronique de gestion de l'alimentation en gaz (21) est esclave du dispositif de commande électronique de puissance (18).Domestic cooking oven according to any one of claims 1 to 9, characterized in that the electronic control device for managing the gas supply (21) is slave to the electronic power control device (18). Four de cuisson domestique selon l'une quelconque des revendications 1 à 10, caractérisé en ce que ledit au moins un moyen d'allumage incandescent (25) est placé à proximité de la première flamme du chemin de flammes du au moins un brûleur à gaz (9) et une électrode d'ionisation (27) à proximité de la dernière flamme dudit chemin de flammes dudit au moins un brûleur à gaz (9).Domestic cooking oven according to any one of claims 1 to 10, characterized in that said at least one incandescent ignition means (25) is placed close to the first flame of the flame path of the at least one gas burner (9) and an ionization electrode (27) near the last flame of said flame path of said at least one gas burner (9).
EP07106356A 2006-04-18 2007-04-17 Domestic cooking oven Active EP1847780B1 (en)

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FR0603754A FR2899957B1 (en) 2006-04-18 2006-04-18 DOMESTIC COOKING OVEN

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CN106705146A (en) * 2017-01-16 2017-05-24 胡小庆 Electric heating furnace capable of intelligently switching heating modes
US11454399B2 (en) 2020-11-18 2022-09-27 Haier Us Appliance Solutions, Inc. Bake algorithm for gas oven with electric bake element

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FR1009670A (en) * 1948-06-15 1952-06-03 Liotard Metallurg Improvement in gas stoves
US5791890A (en) * 1995-08-18 1998-08-11 General Electric Company Gas oven control with proof of ignition
US6216683B1 (en) * 1995-08-18 2001-04-17 General Electric Company Gas oven control
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ES2545928A1 (en) * 2014-03-14 2015-09-16 Coprecitec, S.L. Method of implementation of a gas cooking appliance and gas cooking appliance that implements this method (Machine-translation by Google Translate, not legally binding)

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Publication number Publication date
ATE447142T1 (en) 2009-11-15
ES2335442T3 (en) 2010-03-26
FR2899957A1 (en) 2007-10-19
EP1847780B1 (en) 2009-10-28
PL1847780T3 (en) 2010-03-31
FR2899957B1 (en) 2008-06-13
DE602007002939D1 (en) 2009-12-10

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