EP2531774B1 - Timer of a household gas burner - Google Patents

Timer of a household gas burner Download PDF

Info

Publication number
EP2531774B1
EP2531774B1 EP11710345.7A EP11710345A EP2531774B1 EP 2531774 B1 EP2531774 B1 EP 2531774B1 EP 11710345 A EP11710345 A EP 11710345A EP 2531774 B1 EP2531774 B1 EP 2531774B1
Authority
EP
European Patent Office
Prior art keywords
timer
valve
gas burner
knob
housing
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.)
Active
Application number
EP11710345.7A
Other languages
German (de)
French (fr)
Other versions
EP2531774A2 (en
Inventor
Emil Benko
Tase Lazovski
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to SI201130420T priority Critical patent/SI2531774T1/en
Priority to PL11710345T priority patent/PL2531774T3/en
Publication of EP2531774A2 publication Critical patent/EP2531774A2/en
Application granted granted Critical
Publication of EP2531774B1 publication Critical patent/EP2531774B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/02—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • F23N5/10—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples
    • F23N5/105—Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium using thermocouples using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N5/00—Systems for controlling combustion
    • F23N5/20—Systems for controlling combustion with a time programme acting through electrical means, e.g. using time-delay relays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGESĀ ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C3/00—Stoves or ranges for gaseous fuels
    • F24C3/12—Arrangement or mounting of control or safety devices
    • F24C3/124—Control panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2223/00—Signal processing; Details thereof
    • F23N2223/22—Timing network
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/12—Fuel valves
    • F23N2235/14—Fuel valves electromagnetically operated
    • 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 subject of the invention is a timer of a household gas burner offering a possibility of setting the duration of burning of a gas burner without impaired function of a built-in gas burner safety element against gas leakage once the flame is off and the valve still open.
  • a technical problem solved by the invention is how to conceive such timer of a household gas burner fitted in an optional kitchen element e.g. a cooker with several gas and/or electric hot plates that will automatically shut off gas supply to the burner after a manually set interval.
  • an optional kitchen element e.g. a cooker with several gas and/or electric hot plates that will automatically shut off gas supply to the burner after a manually set interval.
  • all safety elements of the burner preventing leakage of gas with the valve open and with the flame extinguished will remain unchanged, wherein the timer should be adapted for the primary and secondary installation without any modifications of a burner as such both for the cookers connected to electricity network voltage and those foreseen to be connected to it and as far as a user's point of view is concerned, it will be the same as a timer of other electric household heating elements.
  • the timer of the invention should also be subjected to safety and temperature conditions of a household apparatus and relevant regulations and norms.
  • Gas burners of household cookers are equipped only with a safety device against gas leakage with a gas valve open and the flame extinguished.
  • SI- 21860 (Lazovski, Tase).
  • a disadvantage of this solution lies in that all or at least part of the electronic elements used to manage the apparatus are arranged within the household apparatus and are therefore under the burden of temperature and for this reason said electronic elements must be specially adapted to increased temperatures. So there exists a reasonable requirement for doing away with this technical requirement in order for standard electronic elements to be used, said elements being foreseen to function at ambient temperature. Such design simplifies the construction of the device and makes the manufacturing of the objects of the invention cheaper.
  • US 20020094498 A1 discloses a household burner comprising a timer arranged outside a housing.
  • US 20060234177 A1 discloses a household burner according to the preamble of claim 1.
  • a novelty lies in that all electronic elements are embedded in a knob foreseen for the control of each gas valve. Only a pair of wires - conductors lead to a safety thermal element embedded in a gas valve.
  • a control knob consists of two parts to perform a function of mechanical control of the valve on the one hand and of an electronic timer on the other.
  • a timer 1 of a control valve 2 of a gas burner 3 is electronically designed as a time controlled switch manually settable by a user.
  • Said timer 1 may have further control functions embedded, which is not the subject of the present invention.
  • Said timer 1 is electrically connected in series to a circuit 4 together with a coil 5 in the valve 2 and a thermal element 6 .
  • the timer 1 simulates extinguishing of a flame by interrupting the electric circuit between the safety thermal element 6 and the coil 5 in the valve 2 .
  • a characteristic of said timer 1 lies in that it is arranged outside a housing 7 of a household apparatus or on a part of a household apparatus not exposed to heat.
  • the timer 1 is preferably arranged within a control knob 8 of a household apparatus in a way that control switches 9 and a display 10 of the timer 1 are user accessible.
  • a conductor 11 connecting the timer 1 and the valve 2 passes through a bore 12 that needs to be previously made on a housing 3 of a household apparatus.
  • a distance between a shaft 13 of the valve 2 and a bore 14 in most cases suffices to receive the conductor 11.
  • the pivoting of the shaft 13 of the control valve 2 is always smaller than the full angle, a sufficiently long section of the conductor 11 within the knob 8 is enough for a knob 8 to pivot unobstructedly.
  • the control valve 2 is adapted to co-operate with the timer 1 of the invention.
  • the knob 8 consists of two parts in a preferred embodiment.
  • a base 8a of the knob 8 is fastened to the housing 3 of the apparatus and it comprises a bore 14a for the conductor 11 to allow the latter to unobstructedly run from the timer 1 to the coil 5 of the valve 2 .
  • the shaft 13 runs coaxially and a rotating part 8b of the knob 8 is arranged thereon in a known way.
  • Said knob is secured against falling out by a radially oriented pin 15 engaging within an edge 16 on the base 8a .
  • the pivotable mutual connection of the base 8a and the pivotable part 8b may be arranged in any other known way.
  • the timer 1 may be of any optional known embodiment either electric or electronic with its own electricity source.
  • the timer 1 may have several functions that are programmed within it in a simple known way, yet they are not part of the present invention.
  • the timer 1 As the timer 1 is arranged outside the housing 3 of a household apparatus, it is not under the burden of temperature and no special temperature resistant electronic parts are needed therefor, which contributes to a lower price. Due to its construction the knob 8 can simply receive the timer 1 , wherein the function of manual switch-on, continuos operation of the gas valve and switch-off of same remains unchanged.
  • the knob 8 can be taken off the shaft 13 in a known way to replace a source 17 of electricity, e.g. a battery for the supply of the timer 1 .
  • the knob 8 is designed in a way to allow an industrial designer numerous design options.
  • the timer of the invention as described hereinbefore is foreseen for a first installation or an upgrade only with additional boring of a bore for a conduit between the timer and the valve. The remaining work is assembly only.

Landscapes

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

Description

    Subject of Invention
  • The subject of the invention is a timer of a household gas burner offering a possibility of setting the duration of burning of a gas burner without impaired function of a built-in gas burner safety element against gas leakage once the flame is off and the valve still open.
    • Technical Problem
  • A technical problem solved by the invention is how to conceive such timer of a household gas burner fitted in an optional kitchen element e.g. a cooker with several gas and/or electric hot plates that will automatically shut off gas supply to the burner after a manually set interval. At the same time all safety elements of the burner preventing leakage of gas with the valve open and with the flame extinguished will remain unchanged, wherein the timer should be adapted for the primary and secondary installation without any modifications of a burner as such both for the cookers connected to electricity network voltage and those foreseen to be connected to it and as far as a user's point of view is concerned, it will be the same as a timer of other electric household heating elements. The timer of the invention should also be subjected to safety and temperature conditions of a household apparatus and relevant regulations and norms.
    • Prior Art
  • Gas burners of household cookers are equipped only with a safety device against gas leakage with a gas valve open and the flame extinguished.
  • An invention of this type is known, SI-21860 (Lazovski, Tase). A disadvantage of this solution lies in that all or at least part of the electronic elements used to manage the apparatus are arranged within the household apparatus and are therefore under the burden of temperature and for this reason said electronic elements must be specially adapted to increased temperatures. So there exists a reasonable requirement for doing away with this technical requirement in order for standard electronic elements to be used, said elements being foreseen to function at ambient temperature. Such design simplifies the construction of the device and makes the manufacturing of the objects of the invention cheaper. US 20020094498 A1 discloses a household burner comprising a timer arranged outside a housing. US 20060234177 A1 discloses a household burner according to the preamble of claim 1.
    • Solution to the Technical Problem
  • The described technical problem is solved by a household gas burner according to claim 1. A novelty lies in that all electronic elements are embedded in a knob foreseen for the control of each gas valve. Only a pair of wires - conductors lead to a safety thermal element embedded in a gas valve. A control knob consists of two parts to perform a function of mechanical control of the valve on the one hand and of an electronic timer on the other.
  • The essence of the invention will now be described in more detail in the continuation of the description by way of both embodiments and enclosed figures, representing in
    • Fig. 1 an electric wiring diagram of a household gas burner according to the invention, included in an electric circuit with a gas burner;
    • Fig. 2 an axial cross-section of a household gas burner according to the invention arranged within a knob for the control of a gas burner valve.
  • A timer 1 of a control valve 2 of a gas burner 3 is electronically designed as a time controlled switch manually settable by a user. Said timer 1 may have further control functions embedded, which is not the subject of the present invention. Said timer 1 is electrically connected in series to a circuit 4 together with a coil 5 in the valve 2 and a thermal element 6. At a certain point in time or after a certain time interval manually settable by a user, the timer 1 simulates extinguishing of a flame by interrupting the electric circuit between the safety thermal element 6 and the coil 5 in the valve 2.
  • A characteristic of said timer 1 lies in that it is arranged outside a housing 7 of a household apparatus or on a part of a household apparatus not exposed to heat. The timer 1 is preferably arranged within a control knob 8 of a household apparatus in a way that control switches 9 and a display 10 of the timer 1 are user accessible. A conductor 11 connecting the timer 1 and the valve 2 passes through a bore 12 that needs to be previously made on a housing 3 of a household apparatus. A distance between a shaft 13 of the valve 2 and a bore 14 in most cases suffices to receive the conductor 11. As the pivoting of the shaft 13 of the control valve 2 is always smaller than the full angle, a sufficiently long section of the conductor 11 within the knob 8 is enough for a knob 8 to pivot unobstructedly.
  • The control valve 2 is adapted to co-operate with the timer 1 of the invention.
  • The knob 8 consists of two parts in a preferred embodiment. A base 8a of the knob 8 is fastened to the housing 3 of the apparatus and it comprises a bore 14a for the conductor 11 to allow the latter to unobstructedly run from the timer 1 to the coil 5 of the valve 2. Through the base 8a the shaft 13 runs coaxially and a rotating part 8b of the knob 8 is arranged thereon in a known way. Said knob is secured against falling out by a radially oriented pin 15 engaging within an edge 16 on the base 8a. Of course, the pivotable mutual connection of the base 8a and the pivotable part 8b may be arranged in any other known way.
  • The timer 1 may be of any optional known embodiment either electric or electronic with its own electricity source. The timer 1 may have several functions that are programmed within it in a simple known way, yet they are not part of the present invention.
  • As the timer 1 is arranged outside the housing 3 of a household apparatus, it is not under the burden of temperature and no special temperature resistant electronic parts are needed therefor, which contributes to a lower price. Due to its construction the knob 8 can simply receive the timer 1, wherein the function of manual switch-on, continuos operation of the gas valve and switch-off of same remains unchanged.
  • The knob 8 can be taken off the shaft 13 in a known way to replace a source 17 of electricity, e.g. a battery for the supply of the timer 1.
  • The knob 8 is designed in a way to allow an industrial designer numerous design options.
  • The timer of the invention as described hereinbefore is foreseen for a first installation or an upgrade only with additional boring of a bore for a conduit between the timer and the valve. The remaining work is assembly only.
  • No special skill is needed to manage the timer, it is only used to set the time of valve closing or a time interval, after which the valve closes.
  • It is understandable that a man skilled in the art can conceive other embodiments based on the description of the invention and the embodiments without circumventing the characteristics of the invention described in the appended patent claims.

Claims (2)

  1. A household gas burner comprising a housing (7), a valve (2) with a shaft (13), a thermal element (6), a control knob (8), wherein said knob (8) comprises a timer (1) connected in series to a circuit (4) comprising said thermal element (6) and a coil (5) of the valve (2) of the gas burner (3), wherein said timer (1) is arranged outside the housing (7) within the control knob (8) in a way that control switches (9) and a display (10) of the timer (1) are accessible by a user,
    characterized in that a conductor (11) connecting the time (1) and the valve (2) passes through a bore (12, 14) in the housing (7) wherein the knob (8) consists of
    - a base (8a) fastened to the housing (7) and comprising a bore (14a) for the conductor (11) to allow the latter to run in an unobstructed way from the timer (1) to the coil (5) of the valve (2) and allow the shaft (13) to run coaxially, and of
    - a rotatable part (8b) including control switches (9) and the display (10), wherein said rotatable part (8b) is secured against falling out by a radially oriented pin (15) engaging within an edge (16) on the base (8a).
  2. Household gas burner as claimed in Claim 1, characterized in that the shaft (13) of the valve (2) and the bore (14) provide a gap, through which the conductor (11) connecting the timer (1) and the valve (2) passes.
EP11710345.7A 2010-02-05 2011-02-03 Timer of a household gas burner Active EP2531774B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI201130420T SI2531774T1 (en) 2010-02-05 2011-02-03 Timer of a household gas burner
PL11710345T PL2531774T3 (en) 2010-02-05 2011-02-03 Timer of a household gas burner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SI201000047A SI23301A (en) 2010-02-05 2010-02-05 Programmable timer of a household gas burner
PCT/SI2011/000005 WO2011096902A2 (en) 2010-02-05 2011-02-03 Timer of a household gas burner

Publications (2)

Publication Number Publication Date
EP2531774A2 EP2531774A2 (en) 2012-12-12
EP2531774B1 true EP2531774B1 (en) 2014-12-31

Family

ID=44259992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11710345.7A Active EP2531774B1 (en) 2010-02-05 2011-02-03 Timer of a household gas burner

Country Status (5)

Country Link
EP (1) EP2531774B1 (en)
PL (1) PL2531774T3 (en)
RU (1) RU2511865C1 (en)
SI (2) SI23301A (en)
WO (1) WO2011096902A2 (en)

Families Citing this family (4)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20120085A1 (en) * 2012-01-25 2013-07-26 Linari Engineering S R L TIMED CONTROL DEVICE OF A FIRE OF A COOKING HOB
ITTO20120460A1 (en) * 2012-05-25 2013-11-26 Eltek Spa CONTROL DEVICE FOR GAS TAPS
ITTO20120455A1 (en) 2012-05-25 2013-11-26 Eltek Spa CONTROL DEVICE FOR GAS TAPS
BR102018069858A2 (en) * 2018-09-27 2020-04-07 Edilson Jose Baggio gas leak safety method and device

Family Cites Families (9)

* Cited by examiner, ā€  Cited by third party
Publication number Priority date Publication date Assignee Title
US2810525A (en) * 1953-08-31 1957-10-22 Wantz Clarence Control device for fluid fuel burners
US3820405A (en) * 1973-01-04 1974-06-28 Y Hong Gas range timer control
US4756336A (en) * 1987-05-26 1988-07-12 Marco Amezcua Stove control timer
GB9705995D0 (en) * 1997-03-22 1997-05-07 British Gas Plc Pressure regulating system
RU14840U1 (en) * 2000-02-29 2000-09-10 Š—ŠŠž "Š”ŠµŃ‚ŠµŠŗт Š¾Š½ ŠøŠ½Š¶ŠøŠ½ŠøрŠøŠ½Š³" DEVICE FOR ASSESSING THE EFFICIENCY OF THE COMPLEX FIRE EXTINGUISHING SYSTEM OF A COMPLEX TECHNOLOGICAL OBJECT
US6666676B2 (en) * 2000-08-17 2003-12-23 Comercial Acros Whirlpool S.A. De C.V. Programmable burner for gas stoves
SI21860A (en) 2004-08-10 2006-02-28 Tase Lazovski Timer of a household gas burner
US20060234177A1 (en) * 2005-04-19 2006-10-19 Shih-Szu Yu Time knob for gas and electric heater
IT1394792B1 (en) * 2009-05-20 2012-07-13 Eltek Spa DEVICE FOR CONTROL OF GAS FEED AT A BURNER

Also Published As

Publication number Publication date
PL2531774T3 (en) 2015-06-30
RU2012137784A (en) 2014-03-10
RU2511865C1 (en) 2014-04-10
SI23301A (en) 2011-08-31
EP2531774A2 (en) 2012-12-12
WO2011096902A2 (en) 2011-08-11
WO2011096902A3 (en) 2012-03-01
SI2531774T1 (en) 2015-04-30

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