EP1624247A2 - Sicherheitsgasventil mit einem Elektromagnet - Google Patents

Sicherheitsgasventil mit einem Elektromagnet Download PDF

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Publication number
EP1624247A2
EP1624247A2 EP05380149A EP05380149A EP1624247A2 EP 1624247 A2 EP1624247 A2 EP 1624247A2 EP 05380149 A EP05380149 A EP 05380149A EP 05380149 A EP05380149 A EP 05380149A EP 1624247 A2 EP1624247 A2 EP 1624247A2
Authority
EP
European Patent Office
Prior art keywords
bobbin
core
actuating
electromagnet
spool
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.)
Withdrawn
Application number
EP05380149A
Other languages
English (en)
French (fr)
Other versions
EP1624247A3 (de
Inventor
Jose A. Guirado Tristan
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.)
Orkli SCL
Original Assignee
Orkli SCL
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 Orkli SCL filed Critical Orkli SCL
Publication of EP1624247A2 publication Critical patent/EP1624247A2/de
Publication of EP1624247A3 publication Critical patent/EP1624247A3/de
Withdrawn legal-status Critical Current

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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
    • F23N5/102—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

Definitions

  • the present invention relates to a safety valve built into a fuel gas conduit of a household electrical appliance which has a movable armature actuated by means of an electromagnet and is kept attracted by a flame thermocouple for combustion control.
  • EP-1063474-A and its equivalent ES-2154594-A disclose a gas safety valve with an initial actuating electromagnet as defined in the preamble of claim 1.
  • the electromagnet is provided with an actuating bobbin made of thin wire and also of a thick wire winding for holding the electromagnet. Each of these two windings requires an output conductor to the power supply "phase” and an output conductor to the supply "ground”.
  • the actuating bobbin is supported on a plastic moulded insulating spool and fitted on one of the U-shaped magnetic core branches.
  • the valve "ground” is associated with a metal socket supporting the magnetic core.
  • Both ground conductors connected to the respective winding end are guided to the metal seat inside a sealing casing of the electromagnet, which is closed against the metal seat and welded against the latter here.
  • Both "phase” and “ground” conductors have to be sturdy or rigid for their guidance and electrical connection to the outer connector terminals or lugs of the valve.
  • the thick winding wire for the thermocouple energized winding is sufficiently rigid for its ends themselves to be the output conductors of the thermocouple winding.
  • the ends of the actuating bobbin thin wire have to be spliced to a respective sturdy output conductor before being connected to the valve electrical connector.
  • An actuating bobbin of the safety valve is constructed by means of a very thin wire, for example of a diameter between 0.08 and 0.1 mm, and a high number of enclosed loops or turns on the plastic spool, for instance between 400 and 700 loops. The problem therefore has to be solved of connecting both ends of the thin wire winding to the thick output conductors for the connection of the respective phase and ground.
  • the actuating bobbin plastic spool is very small-sized, especially the constructional details used as means for guidance and insulation of the output conductors, which raise a problem of configuration of the moulded piece for its assembly on one of the core branches only without the guidance means of both phase conductors interfering during the installation of one or other winding on each branch of the core.
  • the actuating bobbin has a rigid output conductor to the phase guided through the core, which is inserted in an insulating terminal post on the plastic spool, and the end of the thin wire of the bobbin is spliced to the rigid phase conductor in a central cavity in the metal seat.
  • the object of the present invention is a gas safety valve adapted to a household electrical appliance whose actuating electromagnet has a winding for controlling combustion using a thermocouple and an initial valve actuating bobbin, as defined in claim 1.
  • the electromagnet is constructed on a U-shaped core and the actuating bobbin and the winding for the thermocouple are each assembled on one branch of the core.
  • the actuating bobbin attracts the movable electromagnet armature to avoid the manual pushing the valve member open during the prior thermocouple heating interval.
  • the special construction of the electromagnet and of the output conductors "phase" and “ground” for the actuating bobbin and the holding winding resolve the problems raised in the prior art, in particular the construction of both output conductors for the bobbin supply phase and ground, around 0.4 mm and 0.6 mm thick respectively, using the ends of the bobbin thin wire themselves, and their guidance through the valve insulated from each other and from the metal parts of the electromagnet.
  • the safety valve actuating bobbin is constructed by means of a wire with a preferred thickness of 0.1 mm, and a high number of wire turns enclosed in the plastic spool, preferably between 400 and 500 turns, to be supplied by an electrical circuit provided with a capacitor which discharges an instant current peak of 2-3 A in the bobbin for resetting the armature.
  • a preferred embodiment of safety valve 1 comprises an electromagnet 2 with an actuating bobbin 7 and a thermocouple winding 6 each fitted on one branch 11a, 11b of a U-shaped core 11.
  • the movable electromagnet armature 4a is connected to the valve member 4 and is attracted instantly to open up the flow of gas by means of bobbin 7, supplied with a current peak of 2-3 A.
  • the electromagnet 2 is housed in a sealing casing 3 that closes against a metal socket 5, which is the support for the circular base 11c of the core and represents the electrical "ground" pole of the valve.
  • the diameter of the circular section of the electromagnet core 11 is around 7.5 mm and the separation space between its two branches 11a, 11b is around 1.5 mm.
  • the actuating bobbin is constructed with 400-500 turns of wire about 0.1 mm thick, enclosed in a semicircular section spool 13 provided with two transverse flanges 13a, 13b covering either end of the bobbin 7, about 8 mm apart from each other in the axial direction, and fitted on one of said branches 11a of the core.
  • the actuating bobbin 7 has a moulded plastic insulating spool 13 (FIG. 3A and 3B) made up of one tubular spool wall and two transverse flanges 13a, 13b enclosing the layers of wound thin wire, about 8 mm apart from each other.
  • the core branch 11a wherein the bobbin 7 is fitted is semicircular section.
  • the winding of thick wire 6, of about 0.6 mm, formed prior to its installation on the core 1, is inserted on the other branch 11b from above.
  • the facing flat faces of both core branches 11a, 11b are spaced with a gap between them as little as 1.5 mm.
  • Both electromagnet 2 "phase" output conductors 9, 8 issue axially to the lugs 24 of the safety valve outer connector.
  • the metal socket 5 Being connected electrically to the core 1, the metal socket 5 has a circular surface within the sealing casing 3, of which on two points 18, 18' (FI. 2) both ground conductors 16 and 17 guided laterally to the core 11 are welded separately.
  • the insulation and guidance means for both phase conductors 9, 8 comprise a moulded isolator bushing 14, integral with a spool wall 13 and extending from it in the axial direction, which passes through the central hole in the core 11.
  • Both phase conductors 9, 8 are guided from the wound wire end next to the base of the core 11c, entering first through the isolator bushing 14, and at the outlet from the latter by means of an insulating filler 12 in the outer connector.
  • the spool 13 Due to the small gap between the two branches 11a, 11b of the core, the spool 13 is also constructed with a separating lip 23 extending radially from a transverse flange 13b, for the separation of the thick wire winding 6 fitted on the other branch 11b of the core.
  • both bobbin 7 output conductors 9, 16 are constructed by means of the braiding of their respective thin wire end to the outlet of the spool 1, until reaching a thickness of 0.4 mm, so that each of them becomes sturdy enough for their guidance and handling during the assembly of the electromagnet 2.
  • the isolator bushing 14 is preferably moulded in a hollow tubular shape with two openings or insertion mouths 19, 20 which are adjacent and transverse to the axis of the spool 13.
  • the phase conductor 9, in the form of braiding of the thin wire end, is passed through an insertion opening 20 in the isolator bushing 14.
  • the thermocouple winding phase conductor 8 is introduced from a second insertion opening 19, after the bobbin 7 has already been fitted on the core branch 11a. Both transverse openings 19, 20 in the isolator bushing are separated by an intermediate partition 14a for insulation between both phase conductors 9, 8.
  • the isolator bushing 14 also has a longitudinal opening 21 to allow for its diametric expansion, which is also helps to facilitate the insertion of the phase conductor 9 in the isolator bushing 14, through being flexible.
  • the longitudinal opening 21 is closed with a drop of resin to prevent the phase conductor 9 from being pulled out.
  • the ground conductor 16 is guided from its spool 13 outlet in the open end of the core 11 towards the periphery away from the core 11.
  • the spool is made up of at least one transverse flange 13b next to the base of the core 11c and two notches 22 cut in the transverse flange 13b, one on either side of the tubular bushing 14, by means of which the bobbin 7 ground conductor 16 is tensioned and guided, with one conductor turn 16a encircling the isolator bushing 14, towards the outside of the circular profile of the core 11 for welding up on a surface point 18 of the metal socket 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Magnetically Actuated Valves (AREA)
EP05380149.4A 2004-08-03 2005-07-05 Sicherheitsgasventil mit einem Elektromagnet Withdrawn EP1624247A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200401895U ES1058316Y (es) 2004-08-03 2004-08-03 Valvula de seguridad de gas con un electroiman de accionamiento.

Publications (2)

Publication Number Publication Date
EP1624247A2 true EP1624247A2 (de) 2006-02-08
EP1624247A3 EP1624247A3 (de) 2013-07-03

Family

ID=34043332

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05380149.4A Withdrawn EP1624247A3 (de) 2004-08-03 2005-07-05 Sicherheitsgasventil mit einem Elektromagnet

Country Status (2)

Country Link
EP (1) EP1624247A3 (de)
ES (1) ES1058316Y (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2040271A1 (de) * 2007-09-20 2009-03-25 Mondragon Componentes, S. Coop. Elektromagnetisches Sicherheitsgasventil
EP2211099A1 (de) 2009-01-21 2010-07-28 José Luis Flores Torre Verwendung von chrombasiertem Edelstahl zur Herstellung einer Haushaltsanwendung und manuell zu öffnende Magneteinheit, die mit einer Wärmekupplung oder einem äquivalenten Element betätigt wird

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1063474A1 (de) 1999-06-21 2000-12-27 Orkli, S. Coop. Elektromagneteinheit für einer Sicherheitsventil

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2578194A (en) * 1947-04-17 1951-12-11 Milwaukee Gas Specialty Co Thermoelectric burner control system
US3208036A (en) * 1961-10-09 1965-09-21 American Mach & Foundry Re-inforced lead wires
BE756686A (fr) * 1969-09-27 1971-03-01 Junkers & Co Cartouche a aimant pour un dispositif thermo-electrique de securite d'allumage
US3581753A (en) * 1969-10-14 1971-06-01 Honeywell Inc Limit switch connector
US3772626A (en) * 1972-05-16 1973-11-13 Von Weise Gear Co Bobbin
DE2354014C3 (de) * 1973-10-27 1978-09-07 Joh. Vaillant Kg, 5630 Remscheid Magneteinsatz für eine thermoelektrische Zündsicherung
US5774036A (en) * 1995-06-30 1998-06-30 Siemens Electric Limited Bobbin-mounted solenoid coil and method of making
ES2155016B1 (es) * 1999-03-17 2001-11-01 Orkli S Coop Ltda Valvula de gas de seguridad con un electroiman.
ES1043261Y (es) * 1999-03-22 2000-05-01 Orkli S Coop Ltda "acoplamiento del electroiman en una valvula de gas de seguridad".
ES1050816Y (es) * 2001-12-21 2002-09-16 Orkli S Coop Ltda Valvula de gas de seguridad con un conector electrico

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1063474A1 (de) 1999-06-21 2000-12-27 Orkli, S. Coop. Elektromagneteinheit für einer Sicherheitsventil
ES2154594A1 (es) 1999-06-21 2001-04-01 Orkli S Coop Ltda Grupo magnetico para valvula de gas de seguridad.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2040271A1 (de) * 2007-09-20 2009-03-25 Mondragon Componentes, S. Coop. Elektromagnetisches Sicherheitsgasventil
EP2040270A1 (de) * 2007-09-20 2009-03-25 Mondragon Componentes, S. Coop. Elektromagnetisches Sicherheitsventil
US8028971B2 (en) 2007-09-20 2011-10-04 Mondragon Componentes, S.Coop. Electromagnetic safety valve
EP2211099A1 (de) 2009-01-21 2010-07-28 José Luis Flores Torre Verwendung von chrombasiertem Edelstahl zur Herstellung einer Haushaltsanwendung und manuell zu öffnende Magneteinheit, die mit einer Wärmekupplung oder einem äquivalenten Element betätigt wird

Also Published As

Publication number Publication date
EP1624247A3 (de) 2013-07-03
ES1058316U (es) 2004-12-01
ES1058316Y (es) 2005-03-16

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