EP2472183A2 - Zündschaltung für Gashähne - Google Patents

Zündschaltung für Gashähne Download PDF

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Publication number
EP2472183A2
EP2472183A2 EP11194306A EP11194306A EP2472183A2 EP 2472183 A2 EP2472183 A2 EP 2472183A2 EP 11194306 A EP11194306 A EP 11194306A EP 11194306 A EP11194306 A EP 11194306A EP 2472183 A2 EP2472183 A2 EP 2472183A2
Authority
EP
European Patent Office
Prior art keywords
contact
gas
ignition switch
contact member
tab
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.)
Ceased
Application number
EP11194306A
Other languages
English (en)
French (fr)
Other versions
EP2472183A3 (de
Inventor
Gurkan Gundogdu
Ramazan Uygun
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 EP2472183A2 publication Critical patent/EP2472183A2/de
Publication of EP2472183A3 publication Critical patent/EP2472183A3/de
Ceased legal-status Critical Current

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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
    • F24C3/10—Arrangement or mounting of ignition devices
    • F24C3/103—Arrangement or mounting of ignition devices of electric ignition devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/63—Contacts actuated by axial cams
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/0206—Combined operation of electric switch and of fluid control device

Definitions

  • the present invention relates to an ignition switch which is connected to the rotary shaft of a cooker gas tap.
  • the present invention particularly relates to an ignition switch comprising a switch chamber; a hub which is rotatable inside said chamber and which is connected to the rotary shaft of a cooker gas tap; a contact with at least one arm part and with a contact end which contacts with the second contact when required.
  • gas taps which are adapted to domestic type of gas cookers.
  • Said gas taps comprise a safety valve placed to the tap body; a rotary shaft which is connected to the center of a control button in a shape coupling manner which is rotated by user; and an ignition switch which functions when the user rotates the rotary shaft in a specific direction in order to provide the ignition of the flame.
  • an ignition switch which functions when the user rotates the rotary shaft in a specific direction in order to provide the ignition of the flame.
  • a gas tap comprising a rotary shaft; a cam connected to the rotary shaft; and an ignition switch.
  • the ignition switch comprises a fixed first terminal; and a second terminal which moves towards the first terminal for starting the ignition and which is driven by the cam.
  • the cam comprises a radial first tab which is delimited by two parallel ramps and which is placed centrally; and a second tab which is positioned adjacent to the first tab.
  • an ignition switch assembly connectable to a rotary shaft of a gas tap, comprises fixed contact means, mobile contact means, and a cam coupled to the coupling element which is configured to move the mobile contact means relative to the fixed contact means. Accordingly, when the rotary shaft is rotated in a first direction from a first initial position, mobile contact means are moveable into electrically contact with the fixed contact means, whereas when the rotary shaft is rotated in a second direction opposite the first direction the lateral displacement of the cam is controlled to prevent electrical contact between the mobile and fixed contacts means.
  • a switch unit which activates and deactivates the ignition transformer of gas stoves and gas ovens; which functions in a synchronized manner with the gas tap by engaging to the gas tap shaft; which activates the ignition transformer by providing electrical contact while the gas tap is being turned on in the gas applying direction; and which arrives at the first position while the gas tap is turned off in the gas cutting off direction.
  • the object is to provide ignition when the control button is rotated for applying gas and to prevent ignition when the control button is rotated in the opposite direction for cutting-off the gas.
  • An object of the present invention is to provide a low cost ignition switch which provides the ignition of at least two different units, functioning using gas, when the cooker gas tap is rotated in the opening direction.
  • Another object of the present invention is to provide a low cost ignition switch which prevents the ignition of the units, functioning using gas, when the cooker gas tap is rotated in the turning off direction.
  • Another object of the present invention is to provide an ignition switch which triggers a gas cooking member, which is for instance a gas oven burner, when rotated from the position where no gas is applied, towards any position, and again which triggers another gas cooking member inside the cooker when continued to be rotated in this position and thereby which provides the ignition of a cooking member, so that the position where no gas is applied is the reference position.
  • a gas cooking member which is for instance a gas oven burner
  • an ignition switch comprising a switch chamber; a hub which is positioned inside said switch chamber in a rotatable manner and which is engaged and connected to the rotary shaft of a gas tap which provides gas to the gas cooking member; a first contact member with an arm part which is provided on said hub and whose position is changeable during the opening and turning off of the gas tap, with a contact end part and with a flexible front guide part; a second contact member which contacts with the end part of said first contact member when in opening position of the gas tap; and a tab which is provided on the lateral surface of said hub for changing the position of the first contact member and which triggers ignition by contacting with this flexible front guide part, characterized by comprising at least one second tab which is provided on the lateral surface of the hub which advances on said first contact member, in order to trigger the contact of the first contact member to the second contact for the ignition of the gas in a second gas cooking member.
  • At least one rear flexible guide part to which a pushing force is applied by said tabs which contact at a second different point and which are formed between the contact end and said arm part on the first contact member.
  • At least one triggering member part which is preferably formed in the form of a cut-out and which provides the contact of the first contact member to the second contact member, which is provided on at least one tab by means of pushing; and there is a curved member part which adjusts the duration of pressing of this tab to the first contact member.
  • At least one rear elevating member part which is provided on the tab and which is preferably formed in cut-out form.
  • said second tab comprises at least one triggering member part in the gas applying direction; at least one elevating member part in the gas turning off direction; and a curved member part which determines at least one ignition duration.
  • the front and rear flexible guide parts form the lateral edges of a trapezoid; and there is at least one raised part which is embodied preferably in a flat form on the upper edge of said trapezoid.
  • first tab and a second tab which preferably have radial form.
  • the curved part of said tab is preferably radial.
  • the predetermined distance between the radial positions of said first and second tab which are provided on the lateral surface of the hub of said ignition switch.
  • the predetermined distance between the two tabs is 90 degrees. In another application, the predetermined distance between the two tabs is 45 degrees.
  • the orthogonal axial positions of said first and second tabs of said ignition switch are provided in a spaced manner.
  • said ignition switch's said first and second tabs' orthogonal axial positions on the lateral surface are provided in the same radial direction.
  • said first and second tab preferably have a cross section in the form of a parallelogram.
  • the subject matter invention is a gas oven wherein the ignition switch is to be used.
  • a gas tap (10) which controls the gas flow arriving a burner of a cooker (not illustrated in the figure) and which is connected to the gas collector pipe (20); and an ignition switch (30) which is connected to the rotary shaft (11) of said gas tap (10) are illustrated. Accordingly, when the user rotates a control button (not illustrated in the figure) fixed to the rotary shaft (11) in the opening direction, gas flow is realized to the related gas in proportion with the rotation amount, and at this instant, the ignition switch (30) provides electricity to the spark plug of the related burner for a certain duration, thus, flame is formed and thereby the gas in the burner is flamed.
  • the subject matter gas tap (10) essentially comprises a switch chamber (31); a hub (40) which is positioned inside said switch chamber (31) in a rotatable manner and which has a shaft opening (41) wherein the rotary shaft (11) is placed so as to preferably form shape coupling; a second contact (50) which is connected in a fixed manner to one side of the switch chamber (31); and a movable first contact (60) which can change position and which is connected to the opposite side of the chamber (31).
  • the first contact member (60) which is preferably made of flexible metal, does not contact with the second contact (50) normally; and with the rotation of the hub (40) in clockwise direction or in anti-clockwise direction, the contact between the second contact member (50) and the first contact member (60) is controlled as detailed below.
  • the ignition switch (30) moreover has a cover (32) which closes said switch chamber (31).
  • the hub (40) has a first and a second tab (43, 44), which are preferably in radial form and which are positioned on the lateral surface (42) of the hub (40) so as to have a space in between.
  • Each radial formed tab (43, 44) has a lateral cross section which is preferably in the form of a parallelogram and which is formed by giving an inclination at the edges thereof.
  • the second radial formed tab (43) has a second triggering member part (431) which extends in an angled manner so as to face the base part (45) of the hub (40); preferably the second curved part (432) which extends parallel to the ground; and a rear elevating member part (433) which extends in an angled manner so as to face the upper part (46) of the hub (40).
  • the second radial tab (44) comprises a first triggering member part (441) which extends in an angled manner so as to face the base part (45) of the hub (40); a first curved part (442) which extends parallel to the ground; and a rear elevating member part (433) which extends in an angled manner so as to face the upper part (46) of the hub (40).
  • the first and the second radial tabs (43, 44) are positioned on the lateral surface (42) of the hub (40) so that the first and the second triggering member parts (431, 441) preferably face each other.
  • the second contact member (50) is connected to the switch chamber (31) preferably from the left lower corner of the switch chamber (31) by means of the connection end (52) thereof; and the first contact member (60) is connected to the switch chamber (31) from the right lower corner of the switch chamber (31) by means of the connection end (52) thereof.
  • the contact end (61) of the first contact member (60) is at the upper alignment of the contact end (51) of the second contact member (50).
  • the electrical cables which are supplied from the ignition circuit and which arrive to the spark plug are connected to the cable housings (521, 621) formed at the connection end (52, 62) of each contact (50, 60).
  • the first contact (60) comprises an arm part (64) which extends at the continuation of the connection end (62); a flexible part (63) extending at the continuation of the arm part (64); and a contact end (61) extending at the continuation of the flexible part (63).
  • Said first contact member (60) which has the subject matter characteristics, comprises a rear flexible guide part (631) which extends upwardly in an angled manner at the continuation of the arm part (64); and a front flexible guide part (633) which extends as a flat surface in a parallel manner to the ground at the continuation of said rear flexible guide part (631), which forms the raised part (632) and which extends downwardly in an angled manner up to the contact end (61) at the continuation of said raised part (632).
  • the operation of the subject matter invention is as follows.
  • the second triggering member part (431) of the second radial tab (44) contacts with the rear guide flexible part (631) of the first contact member (60), thus, the first contact member (60) moves downwardly and it contacts with the second contact (50).
  • the circuit is completed and the spark plug is ignited.
  • the user continues to rotate the control button in the same direction and, accordingly, the first contact member (60) remains in contact with the second contact member (50) until preferably the flat first curved part (42) ends.
  • the first contact member (60) has a cut-out rear groove part (611) which is provided at the beginning of the rear flexible guide part (631) at the arm part (64) and which provides the second tab's (43) elevating member part (433) to enter into the lower side of the first contact member (60) when the hub (40) is rotated from the gas applying position to the gas turning off position.
  • the width of the arm part (64) is narrowed.
  • the first contact (60) has a cut-out front groove part (612) which is provided at the end of the front flexible guide part (633) and which provides the first tab's (44) elevating member part (443) to enter into the bottom part of the first contact member (60) when the hub (40) is rotated from the gas applying position to the gas turning off position.
  • the width of the first contact member (60) is narrowed.
  • the burner is ignited which is for instance at the upper part of the oven.
  • the contact between the second curved part (432) and the first contact member (60) is broken, since the first contact member (60) is released from pressure, it bends upwardly and thereby it again returns to the prior position thereof, thus the circuit becomes open circuit.
  • the length of the first curved part (442) determines the electricity application duration to the spark plug.
  • the first triggering member part (443) reaches the front groove part (612) adjacent to the contact end (61) of the first contact member (60), and from there, because of the form of the curved part (442), it enters under the first contact member (60) by means of a first triggering member part (443) whose surface faces the upper side.
  • a useless ignition process is prevented.
  • the user continues to rotate the control button in the same direction, accordingly, the first contact member (60) and the second contact member (50) remain in contact until the contact of the first contact member (60) with the second curved part (432) ends.
  • the contact of the second curved part (432) with the first contact member (60) is broken, and thereby the first contact returns to the prior position and thus the circuit becomes open circuit.
  • the first triggering member part (443) reaches the rear groove part (611) of the first contact member (60), and from there, it enters under the lower side of the first contact member (60). Thus, again during this rotation, a useless ignition is prevented again.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
EP11194306.4A 2010-12-28 2011-12-19 Zündschaltung für Gashähne Ceased EP2472183A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TR2010/10995A TR201010995A2 (tr) 2010-12-28 2010-12-28 Gaz muslukları için bir ateşleme anahtarı

Publications (2)

Publication Number Publication Date
EP2472183A2 true EP2472183A2 (de) 2012-07-04
EP2472183A3 EP2472183A3 (de) 2017-08-30

Family

ID=45442895

Family Applications (1)

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EP11194306.4A Ceased EP2472183A3 (de) 2010-12-28 2011-12-19 Zündschaltung für Gashähne

Country Status (2)

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EP (1) EP2472183A3 (de)
TR (1) TR201010995A2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111947149A (zh) * 2020-08-24 2020-11-17 宁波方太厨具有限公司 灶具燃烧器

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019855A (en) 1975-10-14 1977-04-26 Illinois Tool Works Inc. Electrical switch for ignition in gas appliances
TR200704647U (tr) 2007-07-03 2007-08-21 Termal Elektroni̇k Ve Devre Elemanlari Sanayi̇i̇ Ti̇caret A.Ş. Gazlı ocak ve fırınlar için çakmak anahtarı.
EP2151836A2 (de) 2008-08-06 2010-02-10 Coprececitec, S.L. Zündschaltungsanordnung für einen Gashahn

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3971904A (en) * 1973-10-23 1976-07-27 Illinois Tool Works Inc. Switch assembly for gas tap assembly having cam operated leaf spring contacts and split housing cam detent stop
FR2335933A1 (fr) * 1975-12-17 1977-07-15 Bonhoure Raymond Interrupteur rotatif a cycles pour appareil d'eclairage de faible voltage a pile ou accus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4019855A (en) 1975-10-14 1977-04-26 Illinois Tool Works Inc. Electrical switch for ignition in gas appliances
TR200704647U (tr) 2007-07-03 2007-08-21 Termal Elektroni̇k Ve Devre Elemanlari Sanayi̇i̇ Ti̇caret A.Ş. Gazlı ocak ve fırınlar için çakmak anahtarı.
EP2151836A2 (de) 2008-08-06 2010-02-10 Coprececitec, S.L. Zündschaltungsanordnung für einen Gashahn

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111947149A (zh) * 2020-08-24 2020-11-17 宁波方太厨具有限公司 灶具燃烧器

Also Published As

Publication number Publication date
TR201010995A2 (tr) 2012-07-23
EP2472183A3 (de) 2017-08-30

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