EP2160541A2 - Système de commande pour une cuisinière à gaz - Google Patents

Système de commande pour une cuisinière à gaz

Info

Publication number
EP2160541A2
EP2160541A2 EP08760867A EP08760867A EP2160541A2 EP 2160541 A2 EP2160541 A2 EP 2160541A2 EP 08760867 A EP08760867 A EP 08760867A EP 08760867 A EP08760867 A EP 08760867A EP 2160541 A2 EP2160541 A2 EP 2160541A2
Authority
EP
European Patent Office
Prior art keywords
control device
control
signal
burner
arrangement according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08760867A
Other languages
German (de)
English (en)
Other versions
EP2160541B1 (fr
Inventor
Emilio Placer Maruri
Martin Oberhomburg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP2160541A2 publication Critical patent/EP2160541A2/fr
Application granted granted Critical
Publication of EP2160541B1 publication Critical patent/EP2160541B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/20—Systems for controlling combustion with a time program acting through electrical means, e.g. using time-delay relays
    • F23N5/203—Systems for controlling combustion with a time program acting through electrical means, e.g. using time-delay relays using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/002—Regulating fuel supply using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—Preventing development of abnormal or undesired conditions, i.e. safety arrangements
    • F23N5/242—Preventing development of abnormal or undesired conditions, i.e. safety arrangements using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/10—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
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/126—Arrangement or mounting of control or safety devices on ranges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/18—Chopper
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2227/00—Ignition or checking
    • F23N2227/34—Continuously applied ignition cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2229/00—Flame sensors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/16—Fuel valves variable flow or proportional valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2237/00—Controlling
    • F23N2237/10—High or low fire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2241/00—Applications
    • F23N2241/08—Household apparatus

Definitions

  • the invention relates to a control arrangement for a gas stove with at least one gas burner, wherein the control arrangement at least one control element for switching on and off of the gas burner, at least one signal generator which generates a signal dependent on the position of the control element, and at least one first control device which in response to the signal of the signal generator controls an ignition or extinguishment of a flame on the gas burner comprises.
  • Control arrangements of the type mentioned are designed such that an operator can control the switching on and off of the gas burner and adjusting the flame size by turning the control. In particular, switching on the gas burner by simply turning the control element is possible - it is not necessary to press the control in the axial direction or to hold in a particular position.
  • the switching on and off of the gas burner is completely controlled by the first control device in response to the output signal of the usually electrical signal generator on the control element.
  • the first control device also evaluates a signal from a flame detector. The signal from the flame monitor indicates whether there is a flame on the burner or not.
  • the first control device then activates a shut-off valve and an ignition device. With the ignition device sparks can be generated in the region of the burner to ignite the gas exiting the burner.
  • the shut-off valve is arranged in the gas line in front of a flow control valve, which is also operated with the control element.
  • the shut-off valve is spring-loaded in the closed position and can be opened electromagnetically against the spring force.
  • the electromagnet for opening the shut-off valve is controlled by the first control device.
  • the burner power is controlled exclusively with the operable with the control flow control valve.
  • the flow cross section in Flow control valve can be adjusted continuously by the operator.
  • the flow cross-section in the flow control valve is preset, for example by means of its own flow channel.
  • the flame is continuously ignited and extinguished at the burner, so that averaged over the time results in a heat output that is less than the performance of the burner at the smallest flame.
  • the present invention is therefore an object of the invention to provide a generic control arrangement for a gas stove available that allows for otherwise unchanged functionality in a simple way, a reduction of the burner performance.
  • a second control device is arranged, which is designed such that at least one position of the control element of the first control device, a signal is supplied, which simulates a continuous switching on and off , Also in the control arrangement according to the invention, the heat output of the burner is reduced by the fact that the burner is continuously ignited and recovered. All components of a generic control arrangement can be used here unchanged.
  • a second control device is interposed between the electrical signal transmitter and the first control device. This second device evaluates the signal from the signal generator.
  • the second control device simulates a continuous switching on and off by means of the operating element.
  • the first control device is supplied by the second control device, a signal corresponding to the signal when at generic arrangement, the operator repeatedly turns on and off the burner by means of the control element. In order to achieve the required functionality of a reduced burner output, therefore, no changes are necessary in the first control device.
  • At least one flow control valve with variable flow cross-section is provided, which is operable with the control element.
  • the operator controls the gas flow rate to the gas burner and thus the flame size.
  • the arrangement according to the invention can also be used if at least one flame detector is provided which, depending on the presence of a flame on the gas burner, generates an electrical signal which is fed to the first control device.
  • the flame detector for example, be designed as a thermocouple that generates an electrical voltage while the burner has a flame.
  • shut-off valve can be provided which can be activated by the first control device.
  • the shut-off valve serves to interrupt the gas supply before the flow control valve. This happens, for example, when the burner is turned off or when despite open flow control valve for a long time from the flame detector no flame is signaled.
  • a commercially available shut-off valve can be used, which is biased in the closed position by means of the force of a spring.
  • the shut-off valve can be opened electromagnetically, for which it has a single coil, which is acted upon by the first control device to open the shut-off valve with voltage.
  • At least one ignition device is provided, which is expediently also controlled by the first control device.
  • the ignition device With the ignition device, a spark can be generated in the region of the gas outlet openings of the gas burner, which ignites the gas emerging from the burner.
  • the first control device can thus completely control the process of igniting the gas burner. This includes opening the shut-off valve, igniting the exiting Gas by means of the igniter and monitoring the emergence of a flame by means of the flame guard.
  • the first control device and the second control device are designed as separate units.
  • the first control device can thus be used unchanged for generic and control arrangements according to the invention.
  • the second control device is connected between the signal generator and the first control device. The input signal of the first control device is then no longer supplied directly by the signal generator on the operating element but by the second control device.
  • the second control device and the first control device form a structural unit.
  • the two control devices can be combined in a common housing.
  • the output signal of the second control device which is supplied to the first control device, a discrete on / off signal.
  • This on / off signal indicates the desired state of the burner, i.e., whether it should be on or off.
  • the first controller then establishes the desired state of the burner.
  • the output signal of the second control device continuously changes, this causes the first control device to continuously turn on and off the burner accordingly.
  • the second control device is connected to the first control device via a data bus.
  • the data bus represents a defined interface between the control devices and makes it possible to transmit other information in addition to the on / off signal.
  • a particularly favorable construction of the signal generator is achieved if the signal generator generates a multistage discrete signal as a function of the position of the operating element.
  • the various stages of the multi-level discrete signal may mean, for example: burner off, burner on without power reduction, power reduction stage 1, power reduction stage 2, etc.
  • the multi-stage discrete signal can for example be generated by electrical resistors are switched in the signal generator in dependence on the position of the control element.
  • the second control device is designed such that the respective stages of the discrete signal of the signal generator is assigned a specific ratio between the on-time and off-time of the burner.
  • the ratio between on-time and off-time determines the averaged over the time burning power of the burner.
  • the gas stove has two or more burners, for which a common first control device is provided.
  • the first control device has correspondingly many electrical signal inputs and signal outputs in order to be able to control the functions mentioned separately for each burner.
  • the gas stove has two or more control elements with electrical signal transmitters which are assigned to a common second control device.
  • the function of power reduction can thus be controlled for multiple burners with a single second control device.
  • the input signals from a plurality of signal transmitters are correspondingly evaluated in a single second control device.
  • Control device (1 1) a second electrical control device (12), a
  • Ignition module (16) and belonging to the control arrangement electrical lines.
  • a shut-off valve (3) and an electrical signal generator (4) are arranged.
  • a flame detector (5) and an ignition electrode (6) are arranged in the area of a gas burner (1).
  • the operator specifies whether the burner (1) should be switched on or off and which output the burner (1) should deliver.
  • the operator controls by means of the operating element (7) the opening cross-section of the flow control valve (2).
  • the position of the operating element (7) by means of the electrical signal transmitter (4) is detected. Based on the electrical output signal of the signal generator (4), the burner is switched on and off by means of the control devices (11) and (12).
  • the output signal of the signal generator (4) consists of an electrical resistance, which is measured by the second control device (12). This resistance signal is converted by the second control device (12) into a digital on / off signal, which is supplied to the first control device (11):
  • the signal generator (4) delivers a corresponding resistance signal, which is converted by the second control device into a constant "off" signal
  • the first control device (11) leaves the burner switched off, ie, the shut-off valve (3) remains closed and the ignition device (16) is not activated.
  • the signal generator (4) supplies a second resistance value.
  • the second control device (12) converts this second resistance value into a constant "on" signal
  • Control device (11) then opens the shut-off valve (3), actuates the ignition device
  • the first control device closes the shut-off valve (3) automatically, if it fails to ignite a flame on the burner (1), or if the flame goes out and re-ignition attempts fail.
  • the signal generator (4) supplies a third resistance value.
  • the third resistance value is converted by the second control device (12) in such a way that an "on" signal and an "off” signal are alternately supplied to the first control device (11). This leads to, the first control device (11) continuously switches the burner on and off.
  • the control device (1 1) automatically controls the opening and closing of the shut-off valve (3) and the ignition of the flame by means of the ignition device.
  • the flow control valve (2) is set to minimum burner power in this mode.
  • the burner For the operation of the burner with a power that is lower than the design minimum burner power, more power levels can be provided, which can be specified by means of the control element (7).
  • each power level assigned a certain resistance value.
  • the heat output of the burner is then controlled by the second control device (12) in accordance with the ratio of the on time to the off time of the burner. For example, a stepwise variation of the ratio of the switch-on time to the switch-off time between 80:20 and 20:80 is conceivable.
  • Control device (12) are varied continuously.
  • the operating state in which the burner burns continuously can be defined by a lower and an upper limit for the output signal of the signal generator when using a continuous signal generator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Control Of Combustion (AREA)

Abstract

L'invention concerne un système de commande pour une cuisinière à gaz comprenant au moins un brûleur à gaz (1), le système de commande présentant au moins un régulateur de débit (2) à section de passage variable, au moins un élément de commande (7) destiné à commander le régulateur de débit (2) ainsi qu'à allumer et à éteindre le brûleur à gaz (1), au moins un émetteur de signal électrique (4), produisant un signal électrique en fonction de la position de l'élément de commande (7), et au moins un premier dispositif de commande électrique (11), qui commande l'allumage ou l'extinction d'une flamme sur le brûleur à gaz en fonction du signal émis par l'émetteur de signal électrique. Un second dispositif de commande (12), placé entre l'émetteur de signal électrique (4) et le premier dispositif de commande (11), est réalisé de sorte que, dans au moins une position de l'élément de commande (7), un signal simulant un allumage et une extinction en continu est transmis au premier dispositif de commande (11). Le signal de sortie du second dispositif de commande (12), qui est transmis au premier dispositif de commande (11), est un signal d'allumage/d'extinction discret.
EP08760867.5A 2007-06-21 2008-06-11 Système de commande pour une cuisinière à gaz Not-in-force EP2160541B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200701823A ES2310491B1 (es) 2007-06-21 2007-06-21 Disposicion de mando para una cocina de gas.
PCT/EP2008/057318 WO2008155278A2 (fr) 2007-06-21 2008-06-11 Système de commande pour une cuisinière à gaz

Publications (2)

Publication Number Publication Date
EP2160541A2 true EP2160541A2 (fr) 2010-03-10
EP2160541B1 EP2160541B1 (fr) 2018-10-10

Family

ID=39745589

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08760867.5A Not-in-force EP2160541B1 (fr) 2007-06-21 2008-06-11 Système de commande pour une cuisinière à gaz

Country Status (4)

Country Link
US (1) US8353281B2 (fr)
EP (1) EP2160541B1 (fr)
ES (2) ES2310491B1 (fr)
WO (1) WO2008155278A2 (fr)

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EP2868970B1 (fr) 2013-10-29 2020-04-22 Honeywell Technologies Sarl Dispositif de régulation
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CN106382627A (zh) * 2016-08-31 2017-02-08 杭州老板电器股份有限公司 超稳态燃烧器
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US11105512B2 (en) * 2018-03-30 2021-08-31 Midea Group Co., Ltd Method and system for controlling a flow curve of an electromechanical gas valve
US10697815B2 (en) 2018-06-09 2020-06-30 Honeywell International Inc. System and methods for mitigating condensation in a sensor module
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US11732890B2 (en) 2020-09-30 2023-08-22 Midea Group Co., Ltd. Cooking appliance gas oven burner control during oven warm-up operation
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Also Published As

Publication number Publication date
EP2160541B1 (fr) 2018-10-10
ES2310491B1 (es) 2009-10-27
ES2310491A1 (es) 2009-01-01
ES2694022T3 (es) 2018-12-17
US8353281B2 (en) 2013-01-15
US20100180882A1 (en) 2010-07-22
WO2008155278A2 (fr) 2008-12-24
WO2008155278A3 (fr) 2009-11-12

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