WO2020120488A1 - Système d'alarme et de prévention d'incendie de table de cuisson à gaz - Google Patents

Système d'alarme et de prévention d'incendie de table de cuisson à gaz Download PDF

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Publication number
WO2020120488A1
WO2020120488A1 PCT/EP2019/084457 EP2019084457W WO2020120488A1 WO 2020120488 A1 WO2020120488 A1 WO 2020120488A1 EP 2019084457 W EP2019084457 W EP 2019084457W WO 2020120488 A1 WO2020120488 A1 WO 2020120488A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
temperature
cooktop
cooktop floor
solenoid valve
Prior art date
Application number
PCT/EP2019/084457
Other languages
English (en)
Inventor
Garrett Bentley
Brian Silva
Original Assignee
BSH Hausgeräte 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 Hausgeräte GmbH filed Critical BSH Hausgeräte GmbH
Priority to EP19828991.0A priority Critical patent/EP3894751A1/fr
Priority to CN201980081533.8A priority patent/CN113167476B/zh
Publication of WO2020120488A1 publication Critical patent/WO2020120488A1/fr

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Classifications

    • 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
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/725—Protection against flame failure by using flame detection devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
    • F23N5/102—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples using electronic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/24—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
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2021—Arrangement or mounting of control or safety systems
    • 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
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/081—Arrangement or mounting of control or safety devices on stoves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/76—Protecting flame and burner parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00—Measuring
    • F23N2225/08—Measuring temperature
    • F23N2225/16—Measuring temperature burner temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2900/00—Special features of, or arrangements for controlling combustion
    • F23N2900/05005—Mounting arrangements for sensing, detecting or measuring 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
    • F24C15/00—Details
    • F24C15/36—Protective guards, e.g. for preventing access to heated parts
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
    • G08B21/02—Alarms for ensuring the safety of persons

Definitions

  • the present invention is directed to a gas cooktop fire prevention and alarm system, and more particularly, to a domestic home cooking appliance including a cooktop having a gas cooktop fire prevention and alarm system.
  • Some modern domestic gas surface cooking units such as a gas range, stove, or cooktop, have one or more gas burners for heating foodstuff in a cooking vessel, such as a pot, pan, kettle, etc., and commonly include a support surface, such as a cooking grate, griddle, etc., positioned over one ore more burners for supporting the cooking vessel over a burner.
  • Some cooking ranges or cooktops include a top sheet or spill tray for catching spills, overflows, etc. from the cooking vessel and for concealing other components of the cooking unit, such as gas supply lines.
  • the present invention recognizes that, in some circumstances, a temperature of the cooking vessel, or a temperature of a cooking oil, fat, foodstuff, etc. in a cooking vessel can approach or reach an autoignition point, which may result in a fire event that could lead to a potentially destructive or deadly fire, particularly in a circumstance when a cooking vessel is left unattended or unsupervised on a gas surface cooking unit.
  • a typical solution for preventing a fire associated with a cooking event is a smoke detector/alarm in the home, which alerts a user in a home or residence upon the occurrence of an active fire event (i.e., after an active fire event is in progress).
  • the present invention recognizes that a risk of a fire event can be prevented or minimized by proactively shutting off a flow of gas to the one or more gas burners before a cooking vessel, or foodstuff, fat, oil, etc. in the cooking vessel, approach or reach conditions for autoignition of common cooking fats, oils, etc. (e.g., canola oil), which are commonly being heated or cooked in a cooking vessel.
  • a risk of a fire event can be prevented or minimized by proactively shutting off a flow of gas to the one or more gas burners before a cooking vessel, or foodstuff, fat, oil, etc. in the cooking vessel, approach or reach conditions for autoignition of common cooking fats, oils, etc. (e.g., canola oil), which are commonly being heated or cooked in a cooking vessel.
  • common cooking fats, oils, etc. e.g., canola oil
  • the present invention further recognizes that some conventional solutions attempt to prevent a cooking vessel, oil, or fat, etc. from approaching or reaching conditions for autoignition before a fire event occurs by directly monitoring or detecting the temperature of the cooking vessel to detect a pre-ignition point using one or more obtrusive temperature sensors that project from or extend through an opening in the cooktop floor (e.g., a spill tray or top sheet of the cooktop), project from or extend around or through an opening in a burner or burner cap, or project from or extend around or through an opening in a support surface (e.g., cooking grate) for supporting the cooking vessel, such that a temperature sensor is placed in direct contact with a surface of the cooking vessel to monitor the temperature of the cooking vessel.
  • a support surface e.g., cooking grate
  • such obtrusive temperature sensors may utilize a resistance temperature detector (RTD) 900, such as a spring loaded resistance temperature detector (RTD), that sticks up, protrudes from, or extends through a spill tray 106 of the cooktop unit and directly contacts, or is forced into direct contact with, the bottom surface of a cooking vessel 300 when the cooking vessel is rested on the support surface to directly measure the temperature of the cooking vessel.
  • RTD resistance temperature detector
  • an obtrusive temperature sensor may stick up, protrude from, or extend through or around the body or burner cap of the burner 102 or a support surface (e.g., cooking grate) 104 of the cooktop unit.
  • such obtrusive temperature sensors By sticking up or protruding from, or extending through, the spill tray, burner or burner cap, or support surface of the cooktop unit, such obtrusive temperature sensors create additional places where spilled fluids or overflows undesirably may leak into the area of the cooktop below the cooktop floor (e.g., through an opening in the spill tray or top sheet of the cooktop, burner, etc.), which may result in damage to other components of the appliance.
  • Such obtrusive temperature sensors also result in additional surfaces and components that need cleaning, and create additional surfaces and areas, such as where the obtrusive temperature sensor intersects or rests on other components of the cooktop (e.g., between or around the sensor and the cooktop floor), that are more likely to catch, trap, or accumulate debris from foodstuff, spills, etc., thereby making it more difficult for a user to clean in or around components of the cooktop. Additionally, such obtrusive temperature sensors are visible to a user and commonly do not match the other components of the cooktop unit, thereby detracting from the aesthetical appearance of the appliance to the user.
  • the present invention provides a home cooking appliance having a gas surface cooking unit and a gas cooktop fire prevention system that can simply, easily, and proactively prevent the autoignition of many or most common cooking oils and fats resulting from overheating a cooking vessel on the gas surface cooking unit before such autoignition occurs, while at the same time providing a gas cooktop fire prevention system that can be implemented easily and inexpensively without costly or complex control systems, and that does not detract from aesthetics of the appliance or hinder the cleanability of the appliance.
  • a home cooking appliance includes a gas surface cooking unit and a gas cooktop fire prevention system.
  • the gas surface cooking unit includes a gas burner, a support surface configured to support a cooking vessel above the gas burner, a cooktop floor (e.g., a spill tray or top sheet of the cooktop) below the gas burner, and a gas supply line supplying gas to the gas burner.
  • the gas cooktop fire prevention system includes a solenoid valve on the gas supply line, and a gas supply cutoff unit configured to detect a temperature of the cooktop floor and close the solenoid valve when the detected temperature of the cooktop floor is equal to or greater than a predetermined threshold temperature of the cooktop floor, thereby cutting off a supply of the gas through the gas supply line to the gas burner.
  • the predetermined threshold temperature of the cooktop floor can be selected to correspond or correlate to a predetermined temperature of a cooking vessel to be supported by the support surface (e.g., a cooking grate) that is less than a predetermined auto-ignition temperature of one or more types of foodstuff, fat, oil, liquid, etc., to be heated or cooked (e.g., commonly heated or cooked) in a cooking vessel by the gas burner.
  • a predetermined temperature of a cooking vessel to be supported by the support surface e.g., a cooking grate
  • a predetermined auto-ignition temperature of one or more types of foodstuff, fat, oil, liquid, etc. to be heated or cooked (e.g., commonly heated or cooked) in a cooking vessel by the gas burner.
  • the gas supply cutoff unit can include, for example, a high temperature cutout switch (HTC).
  • HTC high Temperature Cutout switch
  • the High Temperature Cutout switch (HTC) can be, for example, a thermal reset or thermal cutout such as a bimetal switch that opens (i.e., automatically opens) and cuts power to the solenoid valve when a predetermined temperature is reached or exceeded.
  • the gas supply cutoff unit can include, for example, another type of thermal switch such as a Positive Temperature Coefficient (PTC) thermistor, which has a "switch" temperature at which the resistance suddenly rises rapidly, limiting the current through a circuit.
  • PTC Positive Temperature Coefficient
  • the PTC can be configured to cut power to the solenoid valve at a predetermined temperature of the cooktop floor.
  • the gas supply cutoff unit can utilize a temperature sensor (e.g., resistance thermometer, resistance temperature detector (RTD) or element, thermocouple, etc.) to continuously monitor a temperature of the cooktop floor.
  • the temperature sensor can be coupled, for example, to a control unit or control circuit configured to activate, for example, a relay connected to the gas line solenoid valve to cut power to the solenoid valve at a predetermined temperature of the cooktop floor.
  • the gas supply cutoff unit of the gas cooktop fire prevention system utilizes a high temperature cutout switch (HTC) mounted underneath the cooktop floor.
  • HTC high temperature cutout switch
  • the high temperature cutout switch (HTC) is selected such that, at a predetermined threshold temperature of the cooktop floor, which correlates to a predetermined temperature of the cooking vessel, the switch in the high temperature cutout switch (HTC) will open (i.e., automatically open) and cut power to a solenoid valve on the gas supply line, thereby closing the solenoid valve and cutting of the supply of gas through the gas supply line.
  • the solenoid valve may be on a main gas line to the entire appliance, on a gas manifold, or on a gas line supplying gas to a specific burner of the appliance, or multiple solenoid valves may be provided at various locations for a plurality of gas burners.
  • the gas supply to the burner is shut off, preventing or limiting further heating of the cooking vessel, or fat, oil, etc. in the cooking vessel, thereby limiting the temperature to below an auto-ignition temperature of the oil, fat, etc. being heated or cooked in the cooking vessel.
  • the gas cooktop fire prevention system can cut off a supply of gas to one or more gas burners before a temperature of the cooking vessel, or foodstuff, fat, oil, etc.
  • the gas cooktop fire prevention system utilizes a temperature sensor (e.g., resistance thermometer, resistance temperature detector (RTD) or element, thermocouple, etc.) to continuously monitor a temperature of the cooktop floor.
  • the temperature sensor can be coupled, for example, to a control unit or control circuit configured to activate, for example, a relay connected to the gas line solenoid valve. At a predetermined threshold temperature of the cooktop floor detected by the temperature sensor, the control circuit can cause the relay to cut power to the solenoid valve on the gas supply line.
  • the solenoid valve may be on a main gas line to the entire appliance, on a gas manifold, or on a gas line supplying gas to a specific burner of the appliance, or multiple solenoid valves may be provided at various locations for a plurality of gas burners.
  • the gas cooktop fire prevention system can cut off a supply of gas to one or more gas burners before a temperature of the cooking vessel, or foodstuff, fat, oil, etc. in the cooking vessel, approaches or reaches conditions for auto ignition of common cooking fats, oils, etc. (e.g., canola oil), which are commonly being heated or cooked in a cooking vessel.
  • common cooking fats, oils, etc. e.g., canola oil
  • the gas cooktop fire prevention system (e.g., utilizing a high temperature cutout switch (HTC), a positive temperature coefficient (PTC) thermistor, a temperature sensor such as a resistance thermometer, resistance temperature detector (RTD) or element, thermocouple, etc., or the like) can be configured to communicate (e.g., wired or wirelessly) with an alarm unit or“signaling” system to alert a user that there has been a high temperature incident (e.g., an incident in which the temperature of the cooktop floor is equal to or greater than the predetermined threshold temperature of the cooktop floor).
  • the alarm unit can include, for example, one or more of an indicator light, an audible signal, a displayed alert message, or electronic message (e.g., a text message, app alert, email message, and/or phone call, etc.).
  • the examples of the present invention can provide a home cooking appliance having a gas surface cooking unit and a gas cooktop fire prevention system that can simply, easily, and proactively prevent the autoignition of many or most common cooking oils and fats resulting from overheating a cooking vessel on the gas surface cooking unit before such autoignition occurs, thereby preventing or minimizing a risk of a fire event, such as in circumstances where an unattended cooking vessel is left over a gas burner, before it occurs.
  • the examples of the present invention can provide a gas cooktop fire prevention system that can be implemented easily and inexpensively without costly or complex control systems, and that does not detract from aesthetics of the appliance or hinder the cleanability of the appliance.
  • the examples of the gas cooktop fire prevention system do not require obtrusive temperature sensors that project from or extend through the cooktop floor, thereby reducing the possibility of spills or debris from undesirably passing below the cooktop floor, reducing areas where debris can collect, and improving cleanability.
  • the examples of the gas cooktop fire prevention system according to the invention can be hidden from view by a user, thereby improving aesthetics of the appliance.
  • FIG. 1 is a front perspective view of a domestic kitchen with a domestic home cooking appliance including a cooktop having a gas cooktop fire prevention system according to an exemplary embodiment of the invention
  • FIG. 2 is a schematic view of a domestic home cooking appliance including a cooktop having a gas cooktop fire prevention system according to an exemplary embodiment of the invention
  • FIG. 3 is a schematic view of a domestic home cooking appliance including a cooktop having a gas cooktop fire prevention system according to an exemplary embodiment of the invention
  • FIG. 4 is a schematic view of a domestic home cooking appliance including a cooktop having a gas cooktop fire prevention system according to an exemplary embodiment of the invention
  • FIG. 5 is a schematic view of a domestic home cooking appliance including a cooktop having a gas cooktop fire prevention system according to an exemplary embodiment of the invention
  • FIG. 6 is a schematic plan view of a domestic home cooking appliance including a cooktop having a gas cooktop fire prevention system according to an exemplary embodiment of the invention.
  • FIG. 7 is a schematic view of a conventional domestic home cooking appliance. DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS OF THE INVENTION
  • a domestic home cooking appliance including a gas surface cooking unit (e.g., gas cooktop) 100 and a gas cooktop fire prevention system 200, will now be described.
  • a gas surface cooking unit e.g., gas cooktop
  • a gas cooktop fire prevention system 200 gas cooktop fire prevention system 200
  • FIG. 1 illustrates an example of a domestic kitchen having a gas surface cooking unit 100 having one or more gas burners 102 for heating foodstuff in a cooking vessel, such as a pot, pan, kettle, etc.
  • the domestic gas surface cooking unit 100 can be, for example, a surface cooking unit of a slide-in gas range (as shown in the example illustrated in FIG. 1), a gas cooktop or rangetop (e.g., counter mounted, island mounted, etc. as shown in the example illustrated in FIG. 6), a gas stove, a gas grill, etc.
  • the domestic gas surface cooking unit 100 includes a support surface 104, such as a cooking grate, griddle, grill, teppanyaki grill, etc., positioned over one ore more burners 102 for supporting a cooking vessel over at least one of the burners 102.
  • the domestic gas surface cooking unit 100 includes a cooktop floor 106 (e.g., a fixed spill tray or top sheet, a removable spill tray or top sheet, etc.) for catching spills, overflows, etc. from a cooking vessel and/or for concealing other components of the cooking unit, such as gas supply lines, electrical wiring, etc. (not visible in FIG. 1).
  • FIG. 2 illustrates an example of a domestic gas surface cooking unit 100 of a home cooking appliance.
  • the domestic gas surface cooking unit 100 includes one or more gas burners 102, a support surface 104 (cooking grate) configured to support a cooking vessel 300 above a gas burner 102.
  • the support surface 104 can be a griddle, grill, or teppanyaki grill, etc.
  • a cooktop floor 106 is disposed below the gas burner 102.
  • the cooktop floor 106 can extend under one or more of the gas burners 102.
  • a gas supply line 108 is disposed under the cooktop floor 106 and supplies gas to the gas burner 102.
  • the appliance can include a plurality of gas burners 102.
  • the gas burners 102 can be supplied gas via one or more gas lines 108.
  • a main gas line can supply or convey gas to a gas manifold, which in turn supplies the gas to each respective burner, for example through individual gas lines.
  • the home cooking appliance includes a gas cooktop fire prevention system 200 including a solenoid valve 204 on the gas supply line 108, and a gas supply cutoff unit 202 configured to detect a temperature of the cooktop floor 106 and close the solenoid valve 204 when the detected temperature of the cooktop floor 106 is equal to or greater than a predetermined threshold temperature of the cooktop floor 106, thereby cutting off a supply of the gas through the gas supply line 108 to the gas burner 102.
  • One or more solenoid valves 204 can be on the main gas line 108 to the entire appliance, on a gas manifold, and/or on a gas line to a specific gas burner 102 of the appliance.
  • the gas supply cutoff unit 202 can be configured to detect the temperature of the cooktop floor 106, for example, using one or more sensors, temperature dependent switches, etc.
  • the gas supply cutoff unit 202 can include, for example, a high temperature cutout switch (HTC), which can be, for example, a thermal reset or thermal cutout such as a bimetal switch that opens (i.e., automatically opens) and cuts power to the solenoid valve when a predetermined temperature is reached or exceeded.
  • HTC high temperature cutout switch
  • the gas supply cutoff unit 202 can include, for example, another type of thermal switch such as a Positive Temperature Coefficient (PTC) thermistor, which has a "switch" temperature at which the resistance suddenly rises rapidly, limiting the current through a circuit.
  • PTC Positive Temperature Coefficient
  • the PTC of the gas supply cutoff unit 202 can be configured to cut power to the solenoid valve 204 at a predetermined temperature of the cooktop floor 106.
  • the gas supply cutoff unit 202 can include a temperature sensor (e.g., resistance thermometer, resistance temperature detector (RTD) or element, thermocouple, etc.) to continuously monitor a temperature of the cooktop floor 106.
  • a temperature sensor e.g., resistance thermometer, resistance temperature detector (RTD) or element, thermocouple, etc.
  • One or more components (e.g., temperature dependent switch(es), sensor(s), etc.) of the gas supply cutoff unit 202 can be mounted underneath the cooktop floor 106 and in thermal contact with the cooktop floor 106, such as mounted directly to, or in direct thermal contact with, an underside surface of the cooktop floor 106.
  • the gas supply cutoff unit 202 is configured to interrupt (e.g., automatically interrupt) a power supply 206 to the solenoid valve 204 in the event that a temperature of the cooktop floor 106 detected by the one or more sensors of the gas supply cutoff unit 202 reaches or exceeds (i.e., is equal to or greater than) a predetermined threshold temperature of the cooktop floor 106, thereby closing the solenoid valve 204 and cutting off the supply of the gas through the gas supply line 108 to the gas burner 102.
  • interrupt e.g., automatically interrupt
  • a power supply 206 to the solenoid valve 204 in the event that a temperature of the cooktop floor 106 detected by the one or more sensors of the gas supply cutoff unit 202 reaches or exceeds (i.e., is equal to or greater than) a predetermined threshold temperature of the cooktop floor 106, thereby closing the solenoid valve 204 and cutting off the supply of the gas through the gas supply line 108 to the gas burner 102.
  • the predetermined threshold temperature of the cooktop floor 106 can be selected to correspond or correlate to a predetermined temperature of a cooking vessel 300 supported by the support surface 104 (e.g., cooking grate) that is less than an auto-ignition temperature of one or more types of foodstuff, oil, liquid, etc., to be heated or cooked (e.g., commonly heated or cooked) in a cooking vessel 300 by the gas burner 102.
  • a predetermined temperature of a cooking vessel 300 supported by the support surface 104 e.g., cooking grate
  • an auto-ignition temperature of one or more types of foodstuff, oil, liquid, etc. to be heated or cooked (e.g., commonly heated or cooked) in a cooking vessel 300 by the gas burner 102.
  • some examples of the gas supply cutoff unit 202 can includes a reset unit 207, such as a reset switch, button, etc., configured to re-close the solenoid valve 204 upon being actuated by a user.
  • the reset unit 207 can be integrally provided with another component of the gas supply cutoff unit 202 or system 200, or in other examples, can be a separate component.
  • the reset unit 207 can be configured to communicate (e.g., via wired or wireless communication, such as Bluetooth, Wi-Fi, cellular, optical, app communication, Z-wave, etc.) with one or more components of the gas supply cutoff unit 202 or system 200.
  • a remote or wireless reset unit 207 can be arranged in communication with, or integrated into, a smart home network, one or more home systems, such as a security or monitoring system, communication system, etc., a smartphone, a personal computer, and/or another electronic device.
  • some examples of the gas cooktop fire prevention system 200 can include an alarm unit 208 configured to provide an alert to a user when the temperature of the cooktop floor 106 is equal to or greater than the predetermined threshold temperature.
  • the alarm unit 208 can include, for example, an audible alarm device such as an audible signal, siren, etc., a visual alarm device such as one or more indicator lights, flashing lights, a displayed alert message, etc., a notification or electronic message (e.g., a text message, app alert, email message, and/or phone call, etc.) sent to one or more other components such as one or more remote or wireless devices, or a combination of two or more thereof.
  • an audible alarm device such as an audible signal, siren, etc.
  • a visual alarm device such as one or more indicator lights, flashing lights, a displayed alert message, etc.
  • a notification or electronic message e.g., a text message, app alert, email message, and/or phone call, etc.
  • the alarm unit 208 can be a separate component, or in other examples, can be integrally provided with another component, such as the gas supply cutoff unit 202.
  • the alarm unit 208 can be configured to communicate (e.g., via wired or wireless communication, such as Bluetooth, Wi Fi, cellular, optical, app communication, Z-wave, etc.) with one or more components of the appliance, cooktop 100, or system 200, or with one or more other devices.
  • a remote or wireless alarm unit 208 can be arranged in communication with, or integrated into, a smart home network, one or more home systems, such as a security or monitoring system, communication system, etc., a smartphone, a personal computer, and/or another electronic device in order to alert a user.
  • the gas cooktop fire prevention system 200 can include a gas supply cutoff unit 202 having a high temperature cutout switch 210 positioned underneath the cooktop floor 106 and in thermal contact with the underside of the cooktop floor 106.
  • the high temperature cutout switch 210 can include, for example, a thermal switch or thermal cutout switch, which opens when a temperature reaches or exceeds a predetermined temperature and re-closes when the temperature drops below the predetermined temperature.
  • the high temperature cutout switch 210 can include, for example, a thermal switch or thermal cutout switch, which opens when a temperature reaches or exceeds a predetermined temperature and requires a manual reset by a user before the switch re-closes.
  • the high temperature cutout switch 210 can be mounted underneath the cooktop floor 106, such as directly mounted to an underside surface of the cooktop floor 106, and configured to detect the temperature of the cooktop floor 106.
  • the high temperature cutout switch 210 connects a power supply 206 to the solenoid valve 204.
  • the solenoid valve 204 can be on a main gas line or manifold to the entire appliance, or to a gas line to a specific gas burner 102 of the appliance.
  • the high temperature cutout switch 210 In operation, when the temperature of the high temperature cutout switch 210 on the underside of the cooktop floor 106 reaches or exceeds (i.e., is equal to or greater than) a predetermined threshold temperature, the high temperature cutout switch 210 opens, thereby interrupting the power supply 206 to the solenoid valve 204 and cutting off the flow of gas through the gas supply line 108 to the gas burner 102.
  • the predetermined threshold temperature of the cooktop floor 106 can be selected to correspond or correlate to a predetermined temperature of a cooking vessel 300 supported by the support surface 104 (cooking grate) that is less than an auto-ignition temperature of one or more types of foodstuff, oil, liquid, etc., to be heated or cooked (e.g., common types of foodstuff, oil, liquid, etc.to be heated or cooked) in a cooking vessel 300 by the gas burner 102.
  • the high temperature cutout switch 210 when the temperature of the high temperature cutout switch 210 on the underside of the cooktop floor 106 is less than the predetermined threshold temperature, the high temperature cutout switch 210 can be configured such that it re-closes, thereby reconnecting the power supply 206 to the solenoid valve 204 and enabling the flow of gas through the gas supply line 108 to the gas burner 102.
  • the gas supply cutoff unit 202 can include a reset unit 207, such as a reset switch, button, etc., configured for a user to manually reset or re-close the high temperature cutout switch 210, and thereby re-open the solenoid valve 204.
  • the reset unit 207 such as a reset switch, button, etc.
  • the reset unit 207 can be actuated by a user, thereby re-opening the solenoid valve 204 by reconnecting the power supply 206 to the solenoid valve 204 and enabling the flow of gas through the gas supply line 108 to the gas burner 102.
  • some examples of the gas cooktop fire prevention system 200 can include an alarm unit 208 configured to provide an alert to a user when the temperature of the cooktop floor 106 is equal to or greater than the predetermined threshold temperature.
  • the gas cooktop fire prevention system 200 can include a gas supply cutoff unit 202 having a positive temperature coefficient thermistor (PTC thermistor) 211 positioned underneath the cooktop floor 106 and in thermal contact with the underside of the cooktop floor 106, along with a thermistor relay 213.
  • the positive temperature coefficient thermistor (PTC thermistor) 211 can be mounted to an underside of the cooktop floor 106, such as directly mounted to an underside surface of the cooktop floor 106, and configured to detect the temperature of the cooktop floor 106.
  • the relay 213 is configured to electrically connect the power supply 206 to the solenoid valve 204.
  • the solenoid valve 204 can be on the main gas line 108 to the entire appliance, or to the specific gas burner 102 of the appliance.
  • the positive temperature coefficient thermistor (PTC thermistor) 211 is used in conjunction with the thermistor relay 213 to interrupt the power supply 206 to the solenoid valve 204 when a temperature of the cooktop floor 106 detected by the temperature sensor 212 is equal to or greater than a predetermined threshold temperature of the cooktop floor 106, thereby closing the solenoid valve 204 and cutting off the supply of the gas through the gas supply line 108 to the gas burner 102.
  • the predetermined threshold temperature of the cooktop floor 106 can be selected to correspond or correlate to a
  • predetermined temperature of a cooking vessel 300 supported by the support surface 104 that is less than an auto-ignition temperature of one or more types of foodstuff, oil, liquid, etc., to be heated or cooked (e.g., common types of foodstuff, oil, liquid, etc.to be heated or cooked) in a cooking vessel 300 by the gas burner 102.
  • the gas cooktop fire prevention system 200 can be configured to reconnect (e.g., automatically reconnect) the power supply 206 to the solenoid valve 204, or to reconnect the power supply 206 to the solenoid valve 204 upon actuation of a reset unit 207, such as a reset switch, button, etc., by a user, thereby opening the solenoid valve 204 and enabling the supply of the gas through the gas supply line 108 to the gas burner 102.
  • a reset unit 207 such as a reset switch, button, etc.
  • some examples of the gas cooktop fire prevention system 200 can include an alarm unit 208 configured to provide an alert to a user when the temperature of the cooktop floor 106 is equal to or greater than the predetermined threshold temperature.
  • the gas cooktop fire prevention system 200 can include a gas supply cutoff unit 202 having a sensor 212 (i.e., one or more sensors) positioned underneath the cooktop floor 106 and in thermal contact with the underside of the cooktop floor 106, a control unit or control circuit 214 in communication with the sensor 212, and a relay 216 in communication with the control circuit 214.
  • the one or more sensors 212 can be mounted to an underside of the cooktop floor 106, such as directly mounted to an underside surface of the cooktop floor 106, and configured to detect the temperature of the cooktop floor 106.
  • the sensor 212 can be, for example, a temperature sensor (e.g., resistance thermometer, resistance temperature detector (RTD) or element, thermocouple, etc.) capable of continuously monitoring the temperature of the cooktop floor 106.
  • the relay 216 is configured to electrically connect the power supply 206 to the solenoid valve 204.
  • the solenoid valve 204 can be on the main gas line 108 to the entire appliance, or to the specific gas burner 102 of the appliance.
  • control circuit 214 is configured to control the relay 216 to interrupt the power supply 206 to the solenoid valve 204 when a temperature of the cooktop floor 106 detected by the temperature sensor 212 is equal to or greater than a predetermined threshold temperature of the cooktop floor 106, thereby closing the solenoid valve 204 and cutting off the supply of the gas through the gas supply line 108 to the gas burner 102.
  • the predetermined threshold temperature of the cooktop floor 106 can be selected to correspond or correlate to a predetermined temperature of a cooking vessel 300 supported by the support surface 104 (cooking grate) that is less than an auto-ignition temperature of one or more types of foodstuff, oil, liquid, etc., to be heated or cooked (e.g., common types of foodstuff, oil, liquid, etc.to be heated or cooked) in a cooking vessel 300 by the gas burner 102.
  • control circuit 214 can be configured to control the relay 216 to reconnect (e.g., automatically reconnect) the power supply 206 to the solenoid valve 204 when the temperature of the cooktop floor 106 detected by the temperature sensor 212 is less than the predetermined threshold temperature of the cooktop floor 106, thereby opening the solenoid valve 204 and enabling the supply of the gas through the gas supply line 108 to the gas burner 102.
  • control circuit 214 can be configured to control the relay 216 to reconnect the power supply 206 to the solenoid valve 204 when the temperature of the cooktop floor 106 detected by the temperature sensor 212 is less than the predetermined threshold temperature of the cooktop floor 106 and upon actuation of a reset unit 207, such as a reset switch, button, etc., by a user, thereby opening the solenoid valve 204 and enabling the supply of the gas through the gas supply line 108 to the gas burner 102.
  • a reset unit 207 such as a reset switch, button, etc.
  • some examples of the gas cooktop fire prevention system 200 can include an alarm unit 208 configured to provide an alert to a user when the temperature of the cooktop floor 106 is equal to or greater than the predetermined threshold temperature.
  • FIG. 6 illustrates an example of a home cooking appliance having a domestic gas surface cooking unit 100 including a cooktop floor 106 (e.g., a fixed spill tray or top sheet, a removable spill tray or top sheet, etc.) for catching spills, overflows, etc. from a cooking vessel and/or for concealing other components of the cooking unit, such as gas supply lines, electrical wiring, etc. (not visible in FIG. 1).
  • a cooktop floor 106 e.g., a fixed spill tray or top sheet, a removable spill tray or top sheet, etc.
  • FIG. 6 shows the surface cooking unit as a gas cooktop or rangetop (e.g., counter mounted, island mounted, etc.).
  • the surface cooking unit can include a surface cooking unit of a slide-in gas range, gas stove, gas grill, etc.
  • FIG. 6 schematically illustrates a domestic gas surface cooking unit 100 including several examples of a gas cooktop fire prevention system 200 including one or more gas supply cutoff units 202 configured to detect a temperature of the cooktop floor 106 at one or more locations and to close one or more solenoid valves (not shown in FIG. 6) when the detected temperature of the cooktop floor 106 is equal to or greater than a predetermined threshold temperature of the cooktop floor 106, thereby cutting off a supply of the gas through a gas supply line to one or more of the gas burners (e.g., 102, 102a, 102b, 102c, 102d).
  • the one or more solenoid valves can be on a main gas line to the entire appliance, on a gas manifold, and/or on a gas line to a specific gas burner of the appliance.
  • one or more components e.g., temperature sensing components, such as temperature dependent switch(es), temperature sensor(s), etc.
  • the gas supply cutoff unit 202 can be mounted underneath the cooktop floor 106 and in thermal contact with the cooktop floor 106, such as mounted directly to, or in direct thermal contact with, an underside surface of the cooktop floor 106.
  • the cooktop floor 106 can be a top sheet, spill tray, etc.
  • the cooktop floor 106 can be a single, continuous floor extending across a width of the domestic gas surface cooking unit 100, or the cooktop floor 106 can be formed by two or more sections or parts forming the floor. For example, in FIG.
  • a single, continuous floor can extend under each of the burners 102, 102a, 102b, 102c, 102d.
  • a first cooktop floor can be provided under the two gas burners 102 and 102a
  • a second cooktop floor can be provided under gas burners 102b and 102c
  • a third cooktop floor can be provided under the gas burner 102d.
  • Other combinations and arrangements of the cooktop floor 106 are possible.
  • a dedicated gas supply cutoff unit 202 (including the one or more components, e.g., temperature sensing components such as temperature dependent switch(es), temperature sensor(s), etc.) can be provided for an individual gas burner 102, or a plurality of gas supply cutoff units 202 (e.g., gas supply cutoff sub-units) can be provided, such as one unit 202 (e.g., gas supply cutoff sub-unit) for each individual gas burner (e.g., 102, 102a). As exemplarily shown in FIG. 6 (left-hand side), at least one dedicated gas supply cutoff unit 202 (e.g., gas supply cutoff sub-unit) can be provided for each individual gas burner 102, 102a.
  • the one or more components e.g., temperature sensing components such as temperature dependent switch(es), temperature sensor(s), etc.
  • a plurality of gas supply cutoff units 202 e.g., gas supply cutoff sub-units
  • one unit 202 e.g.,
  • One or more of the dedicated gas supply cutoff units 202 can have one or more components (e.g., temperature sensing components such as temperature dependent switch(es), temperature sensor(s), etc.) of an arrangement as shown for example in any of FIGS. 2 - 5, and can be configured to close one or more solenoid valves for supplying the gas to each of the individual burners or to a plurality of burners at the same time (e.g., one burner, less than all of the burners, or all of the burners).
  • one or more of the dedicated gas supply cutoff units 202 can have one or more components (e.g., temperature sensing components such as temperature dependent switch(es), temperature sensor(s), etc.) of an arrangement as shown for example in any of FIGS. 2 - 5, and can be configured to close one or more solenoid valves for supplying the gas to each of the individual burners or to a plurality of burners at the same time (e.g., one burner, less than all of the burners, or all of the burners).
  • FIG. 6 illustrates other examples in which a shared gas supply cutoff unit 202a can be provided for more than one gas burner. As shown in the example on the right-hand side of FIG. 6, a shared gas supply cutoff unit 202a can be provided for gas burners 102b and 102c.
  • the shared gas supply cutoff unit 202a can be configured to detect a temperature of the cooktop floor 106 adjacent to both of the burners 102b and 102c, and close one or more solenoid valves when the detected temperature of the cooktop floor 106 is equal to or greater than a predetermined threshold temperature of the cooktop floor 106, thereby cutting off a supply of the gas through one or more gas supply lines to the gas burners 102b and 102c.
  • a single cooktop floor 106 extends under/around both of the gas burners 102b and 102c such that the shared gas supply cutoff unit 202a can detect the temperature of the cooktop floor 106 adjacent to both of the burners 102b and 102c at the same time.
  • the shared gas supply cutoff unit 202a in this example, can have an arrangement as shown for example in any of FIGS. 2 - 5 and can be configured to close one or more solenoid valves for supplying the gas to the one or more burners.
  • a solenoid valve 204 can be provided for each of the burners 102b and 102c, or one or more of the gas burners can have a shared solenoid valve.
  • a shared gas supply cutoff unit 202b can be provided for gas burners 102b and 102d.
  • the shared gas supply cutoff unit 202b can be configured to detect a temperature of the cooktop floor 106 adjacent to both of the burners 102b and 102d, and close one or more solenoid valves when the detected temperature of the cooktop floor 106 is equal to or greater than a predetermined threshold temperature of the cooktop floor 106, thereby cutting off a supply of the gas through one or more gas supply lines to the gas burners 102b and 102d.
  • a single cooktop floor 106 extends
  • the shared gas supply cutoff unit 202b can have an arrangement as shown for example in any of FIGS. 2 - 5 and can be configured to close one or more solenoid valves for supplying the gas to the one or more burners.
  • a solenoid valve 204 can be provided for each of the burners 102b and 102d, or one or more of the gas burners can have a shared solenoid valve.
  • a shared gas supply cutoff unit 202c can be provided for gas burners 102b, 102c, and 102d.
  • the shared gas supply cutoff unit 202c can be configured to detect a temperature of the cooktop floor 106 adjacent to the burners 102b, 102c, and 102d, and close one or more solenoid valves when the detected temperature of the cooktop floor 106 is equal to or greater than a predetermined threshold temperature of the cooktop floor 106, thereby cutting off a supply of the gas through one or more gas supply lines to the gas burners 102b, 102c, and 102d.
  • a single cooktop floor 106 extends under/around the gas burners 102b, 102c, and 102d such that the shared gas supply cutoff unit 202c can detect the temperature of the cooktop floor 106 for all of the burners 102b, 102c, and 102d at the same time.
  • the shared gas supply cutoff unit 202c in this example, can have an arrangement as shown for example in any of FIGS. 2 - 5 and can be configured to close one or more solenoid valves for supplying the gas to the one or more burners.
  • a solenoid valve 204 can be provided for each of the gas burners 102b, 102c, and 102d, or one or more of the gas burners can have a shared solenoid valve.
  • a gas supply cutoff unit 202d similarly can be provided for gas burners 102a, 102c, and 102d.
  • the gas supply cutoff unit 202d can be configured to detect a temperature of the cooktop floor 106 adjacent to the burners 102a, 102c, and 102d, and close one or more solenoid valves when the detected temperature of the cooktop floor 106 is equal to or greater than a predetermined threshold temperature of the cooktop floor 106, thereby cutting off a supply of the gas through one or more gas supply lines to the gas burners 102a, 102c, and 102d.
  • a single cooktop floor 106 extends under/around the gas burners 102a, 102c, and 102d such that the gas supply cutoff unit 202d can detect the temperature of the cooktop floor 106 for all of the burners 102a, 102c, and 102d at the same time.
  • the shared gas supply cutoff unit 202d in this example, can have an arrangement as shown for example in any of FIGS. 2 - 5 and can be configured to close one or more solenoid valves for supplying the gas to the one or more burners.
  • a solenoid valve 204 can be provided for each of the gas burners 102a, 102c, and 102d, or one or more of the gas burners can have a shared solenoid valve.
  • exemplary embodiments of the invention include a home cooking appliance comprising a gas surface cooking unit (e.g., 100) including a gas burner (e.g., one or more gas burners 102, 102a, 102b, 102c, 102d), a support surface (e.g., 104) configured to support a cooking vessel (e.g., 300) above the gas burner (e.g., one or more gas burners 102, 102a, 102b, 102c, 102d), a cooktop floor (e.g., 106) below the gas burner (e.g., one or more gas burners 102, 102a, 102b, 102c, 102d), and a gas supply line (e.g., one or more gas supply lines 108) supplying gas to the gas burner (e.g., one or more gas burners 102, 102a, 102b, 102c, 102d).
  • a gas burner e.g., one or more gas burners 102,
  • the gas surface cooking unit (e.g., 100) includes a gas cooktop fire prevention system (e.g., 200) including a solenoid valve (e.g., one or more solenoid valves 204) on the gas supply line (e.g., one or more gas supply lines 108), and a gas supply cutoff unit (e.g., one or more gas supply cutoff units or sub-units 202, 202a, 202b, 202c, 202d) configured to detect a temperature of the cooktop floor (e.g., 106) and close the solenoid valve (e.g., one or more solenoid valves 204) when the detected temperature of the cooktop floor (e.g., 106) is equal to or greater than a predetermined threshold temperature of the cooktop floor (e.g., 106), thereby cutting off a supply of the gas through the gas supply line (e.g., one or more supply lines 108) to the gas burner (e.g., one or more gas burners 102, 102a
  • the gas supply cutoff unit (e.g., one or more gas supply cutoff units or sub-units 202, 202a, 202b, 202c, 202d) can include, for example, one or more of a high temperature cutout switch (e.g., 210), a positive temperature coefficient thermistor (PTC thermistor) (e.g., 211) and thermistor relay (e.g., 213), a temperature sensor (e.g., 212), a control circuit (e.g., 214), and relay (e.g., 216), among other arrangements, etc.
  • a high temperature cutout switch e.g., 210
  • PTC thermistor positive temperature coefficient thermistor
  • thermistor relay e.g., 213
  • a temperature sensor e.g., 212
  • control circuit e.g., 214
  • relay e.g., 216
  • the examples of the present invention can provide a home cooking appliance having a gas surface cooking unit and a gas cooktop fire prevention system that can simply, easily, and proactively prevent the autoignition of many or most common cooking oils and fats resulting from overheating a cooking vessel on the gas surface cooking unit before such autoignition occurs, while at the same time providing a gas cooktop fire prevention system that can be implemented easily and inexpensively without costly or complex control systems, and that does not detract from aesthetics of the appliance or hinder the cleanability of the appliance.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Combustion (AREA)
  • Regulation And Control Of Combustion (AREA)
  • Baking, Grill, Roasting (AREA)

Abstract

L'invention porte sur un appareil de cuisson domestique comprenant une unité de cuisson de surface de gaz et un système de prévention d'incendie de table de cuisson à gaz. L'unité de cuisson de surface de gaz comprend un brûleur à gaz, une surface de support conçue pour supporter un récipient de cuisson au-dessus du brûleur à gaz, un plancher de table de cuisson sous le brûleur à gaz et une conduite d'alimentation en gaz fournissant du gaz au brûleur à gaz. Le système de prévention d'incendie de table de cuisson à gaz comprend une électrovanne sur la conduite d'alimentation en gaz et une unité de coupure d'alimentation en gaz conçue pour détecter une température du plancher de table de cuisson et fermer l'électrovanne lorsque la température détectée du plancher de table de cuisson est égale ou supérieure à une température seuil prédéfinie du plancher de table de cuisson, ce qui permet d'interrompre une fourniture du gaz par la conduite d'alimentation en gaz au brûleur à gaz.
PCT/EP2019/084457 2018-12-10 2019-12-10 Système d'alarme et de prévention d'incendie de table de cuisson à gaz WO2020120488A1 (fr)

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EP19828991.0A EP3894751A1 (fr) 2018-12-10 2019-12-10 Système d'alarme et de prévention d'incendie de table de cuisson à gaz
CN201980081533.8A CN113167476B (zh) 2018-12-10 2019-12-10 燃气炉灶面防火和警报系统

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US16/214,190 2018-12-10
US16/214,190 US20200182460A1 (en) 2018-12-10 2018-12-10 Gas cooktop fire prevention and alarm system

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Publication number Priority date Publication date Assignee Title
WO2020185621A1 (fr) * 2019-03-08 2020-09-17 Corcoran Brian M Système de surveillance de sécurité d'installation de service
US11125464B2 (en) * 2019-04-19 2021-09-21 Allied Air Enterprises Inc. Method and system for vented rollout switch
US12000167B2 (en) * 2021-02-25 2024-06-04 Scott Ellerbrock Expandable fire fence with additional safety features
CN113237109B (zh) * 2021-05-31 2022-10-04 宁波方太厨具有限公司 一种烟灶联动控制装置、灶具及吸油烟机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1536234A (en) * 1976-05-15 1978-12-20 Jenaer Glaswerk Schott & Gen Cooking stove assembly
EP0514212A1 (fr) * 1991-05-17 1992-11-19 Matsushita Electric Industrial Co., Ltd. Dispositif d'échauffement et méthode pour la commande de puissance
JP2002340339A (ja) * 2001-03-16 2002-11-27 Osaka Gas Co Ltd コンロ
WO2011155709A2 (fr) * 2010-06-10 2011-12-15 Park Sung-Hyung Dispositif de sécurité de gaz
WO2014152957A1 (fr) * 2013-03-14 2014-09-25 Golomb Mercantile Company Llc Brûleur de sécurité avec arrêt automatique
WO2014160570A1 (fr) * 2013-03-27 2014-10-02 Electrolux Home Products, Inc. Détection de casserole basée sur un thermocouple de chauffage croisé
US20170067648A1 (en) * 2015-09-04 2017-03-09 Electrolux Home Products, Inc. Methods and apparatus for controlling a cooking appliance

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6463462B2 (ja) * 2014-08-19 2019-02-06 マイヤー インテレクチュアル プロパティーズ リミテッド 高度調理器具による自動調理制御

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1536234A (en) * 1976-05-15 1978-12-20 Jenaer Glaswerk Schott & Gen Cooking stove assembly
EP0514212A1 (fr) * 1991-05-17 1992-11-19 Matsushita Electric Industrial Co., Ltd. Dispositif d'échauffement et méthode pour la commande de puissance
JP2002340339A (ja) * 2001-03-16 2002-11-27 Osaka Gas Co Ltd コンロ
WO2011155709A2 (fr) * 2010-06-10 2011-12-15 Park Sung-Hyung Dispositif de sécurité de gaz
WO2014152957A1 (fr) * 2013-03-14 2014-09-25 Golomb Mercantile Company Llc Brûleur de sécurité avec arrêt automatique
WO2014160570A1 (fr) * 2013-03-27 2014-10-02 Electrolux Home Products, Inc. Détection de casserole basée sur un thermocouple de chauffage croisé
US20170067648A1 (en) * 2015-09-04 2017-03-09 Electrolux Home Products, Inc. Methods and apparatus for controlling a cooking appliance

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CN113167476A (zh) 2021-07-23
EP3894751A1 (fr) 2021-10-20
CN113167476B (zh) 2024-03-01
US20200182460A1 (en) 2020-06-11
CA3064260A1 (fr) 2020-06-10

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