EP1707882A2 - Tôle de maintien d'une électrode - Google Patents

Tôle de maintien d'une électrode Download PDF

Info

Publication number
EP1707882A2
EP1707882A2 EP06111542A EP06111542A EP1707882A2 EP 1707882 A2 EP1707882 A2 EP 1707882A2 EP 06111542 A EP06111542 A EP 06111542A EP 06111542 A EP06111542 A EP 06111542A EP 1707882 A2 EP1707882 A2 EP 1707882A2
Authority
EP
European Patent Office
Prior art keywords
seal
electrode
retaining plate
electrode according
holding plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06111542A
Other languages
German (de)
English (en)
Other versions
EP1707882B1 (fr
EP1707882A3 (fr
Inventor
Ralf Drechsel
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.)
Paul Rauschert & Co KG GmbH
Original Assignee
Rauschert Paul KG Firma
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 Rauschert Paul KG Firma filed Critical Rauschert Paul KG Firma
Priority to SI200631953T priority Critical patent/SI1707882T1/sl
Priority to PL06111542T priority patent/PL1707882T3/pl
Publication of EP1707882A2 publication Critical patent/EP1707882A2/fr
Publication of EP1707882A3 publication Critical patent/EP1707882A3/fr
Application granted granted Critical
Publication of EP1707882B1 publication Critical patent/EP1707882B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23QIGNITION; EXTINGUISHING-DEVICES
    • F23Q3/00Igniters using electrically-produced sparks
    • F23Q3/006Details
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23QIGNITION; EXTINGUISHING-DEVICES
    • F23Q9/00Pilot flame igniters
    • F23Q9/02Pilot flame igniters without interlock with main fuel supply
    • F23Q9/04Pilot flame igniters without interlock with main fuel supply for upright burners, e.g. gas-cooker burners
    • F23Q9/045Structurally associated with a main-burner

Definitions

  • the present invention relates to a holding plate for an electrode, e.g. an ignition electrode or monitoring electrode, consisting of a planar or more or less structured sheet metal section, with a spark plug receiving a receiving bore and fastening means and with a comprehensive at least the ignition electrode seal for a sealed attachment of the retaining plate to an opening for the ignition electrode having Wall.
  • an electrode e.g. an ignition electrode or monitoring electrode, consisting of a planar or more or less structured sheet metal section, with a spark plug receiving a receiving bore and fastening means and with a comprehensive at least the ignition electrode seal for a sealed attachment of the retaining plate to an opening for the ignition electrode having Wall.
  • Corresponding holding plates are required, for example, for electrodes which are installed in the wall of a gas boiler, wherein the ignition electrodes serve to bring it on ignition of a combustible gas to ignite. Monitoring electrodes signal the presence of the flame.
  • the ignition electrodes are often sealed in the retaining plate attached, so that the retaining plate with the ignition electrode mounted therein is sealed.
  • Such prefabricated parts which are provided from a holding plate equipped with a firing electrode, are generally purchased parts that get the manufacturer of gas boilers finished and mounted on their respective burners.
  • the outer sides of the electrodes have corresponding electrical connection cables, which are connected to a corresponding power supply, which generates a voltage pulse as needed, which makes the ignition electrode generate a spark.
  • corresponding retaining plates on two or more mounting holes which are located at a distance from the electrode. Now runs such a seal between the electrode and mounting hole too close to the mounting hole and then the retaining plate is fastened in the mounting hole by a very strong screw, the seal acts as a fulcrum and it can happen that the retaining plate on the side of the mounting hole is very strongly attracted to a housing wall, but for it on the side facing away from the mounting hole of the seal, namely where the ignition electrode is, from the boiler wall bulges.
  • the seal must therefore be suitably arranged so that as possible no bulging takes place by appropriate leverage and the seal is largely clamped or compressed with a uniform pressure between the holding plate and the wall of the boiler.
  • the present invention seeks to provide a corresponding retaining plate with seal, in which a secure seal is better ensured and possibly excessive pressing of the sealing material is avoided.
  • This object is achieved in that the retaining plate is provided with an integrated seal.
  • integral seal is understood to mean that the holding plate is prefabricated with the seal, ie that the seal is arranged in any correct position on the holding plate and at least fixed so far that it does not slip during assembly, so that it always maintains an optimum position, which ensures that the retaining plate is not deformed and bulged when attaching to the wall of a burner or boiler, that leaks occur.
  • retaining plate is to be interpreted broadly and is intended to include all types of suitable, ie mechanically sufficiently stable, plate-shaped components, also made of plastic or ceramic.
  • the seal according to the invention is integrated with the holding plate from the outset, i. is firmly and permanently arranged on the retaining plate, it can be ensured that the seal remains during assembly in the correct, appropriately selected position, so that a uniform contact pressure of the retaining plate is ensured at the seal.
  • the seal may e.g. are applied over a large area on the side of the retaining plate facing a corresponding vessel wall and only leave out the fastening bores and the area of the ignition electrode and observe a certain small distance of a few (for example 2-8) millimeters from the outer edge as well as the fastening bores and the ignition electrode.
  • the seal can also be applied in the form of a strand or a "bead" on the retaining plate, in particular sprayed or printed.
  • silicone gaskets can readily be sprayed onto a metal in the form of a "caterpillar” and then adhere to the metal with a sufficient adhesive force so that such a gasket does not slip.
  • the seal can also be injected / glued / imprinted into a groove.
  • a single seal is provided which includes both the ignition electrode and the mounting holes.
  • both the ignition electrode and the mounting holes are each surrounded by their own annular seals.
  • the seals are provided in a circumferential groove, wherein the groove depth is significantly smaller than the thickness or height of the seal, measured perpendicular to the surface of the retaining plate.
  • the groove depth is between 50 and 80% of the height or thickness of the seal.
  • the groove-mounted seal on the open side of the groove protrudes well beyond the plane of the retaining plate and thus can be securely engaged with an opposite wall of a vessel or the like, the thickness of the seal being the dimensions the groove and the sealing material can be dimensioned so that the retaining plate can be tightened with his mounting screws until, for example, holding plate and wall of the housing have contact with each other, in which state the seal by a defined amount, namely exactly to the groove depth, compressed and thus experiences a uniform pressure force, which ensures a good seal.
  • the defined compression of the sealing material can thus be predetermined and ensures secure sealing and long life of the seal.
  • a seal that can not be sprayed, it can also be glued to the retaining plate or soldered when using a metallic seal.
  • simple mechanical retaining means could be provided, e.g. small tabs or projections extending from the sheet and holding the gasket in place without compromising the sealing engagement between the gasket and the wall of a boiler or the like.
  • a groove could have a depth that is slightly greater than half the diameter or thickness of the gasket, which gasket could be sized to lie against the groove wall with slight tension after insertion into the groove. Also in this way, the seal could be securely held in its desired position.
  • a holding plate 1 in the form of a rectangular plate with two continuous mounting holes 3 and a central mounting hole in which a ignition electrode 4 is received sealed.
  • FIG. 2 shows the retaining plate 1 with the mounting holes 3 and the ignition electrode 4 in longitudinal section, corresponding to a section along the line II-II in Figure 1.
  • a circumferential seal 2 is discerned, which is arranged in a groove which is guided around the fastening bores 3 and the central bore with the ignition electrode 4 in an approximately elliptical shape.
  • the cross section of the seal as an asymmetric trapezoid, which is arranged in a groove in the retaining plate and protrudes with a wedge-shaped in cross-section sealing lip of the groove.
  • the seal 2 can either be inserted or glued into the groove with a certain bias or it can also be injected with a nozzle having a corresponding profile in the groove or applied for example by screen printing. In any case, the seal 2 is sufficiently fixed in the respective groove, so that they can be prefabricated as an integrated unit with the retaining plate 1, delivered and handled, in particular can be mounted.
  • the retaining plate 1 as a whole has the shape of a simple rectangular plate, preferably of a metallic material, e.g. made of sheet steel.
  • a corrosion-protected sheet which is either inherently corrosion-resistant or has a corresponding coating or surface treatment.
  • a sheet you can of course use a corresponding plastic or ceramic part.
  • the retaining plate can also have any other shape.
  • FIG. 3 shows the retaining plate 1 in a state fastened by means of two fastening screws 6 to the wall 5 of a boiler or the like.
  • the screws 6 are passed through the mounting holes 3 and screwed either in provided with a corresponding internal thread holes in the wall 5 or screwed with corresponding nuts from the inside of the wall, which are not shown here.
  • an additional sealing washer may be inserted, although the firm engagement of a smooth screw head with the top of the sheet is generally sufficient to ensure sufficient tightness at this point, since it is only about larger leaks to prevent. If the threaded holes for the fastening screws 6 are executed in the wall of the boiler as a blind hole, the screws must not be self-sealed anyway.
  • the provided in the housing wall 5 hole for receiving the ignition electrode 4 could be provided in the rest, moreover, easily with greater play to better compensate for tolerances in the arrangement of the various holes for the mounting screws and the ignition.
  • FIG. 4 shows two further variants of the arrangement of seals.
  • a hatched seal is sprayed over a large area on one side of the retaining plate 1 or imprinted for example by screen printing, with only the mounting holes 3 and the central bore for receiving the ignition electrode 4 are recessed.
  • the outer edge regions of the rectangular retaining plate are not provided with the sealing layer.
  • each of the existing in the retaining plate holes 3 for mounting screws and for the central ignition electrode 4 is surrounded by its own sealing ring. This also ensures that when tightening the corresponding mounting screws 6 all seals are pressed together with substantially the same contact pressure between the retaining plate 1 and the housing wall 5 and thereby seal securely.
  • the seals 2 can, as shown in the example of Figures 1 to 3, are inserted into a groove or injected into this groove or glued, when using a metallic sealing material, they could also be soldered into the groove. However, they can also be sprayed on a smooth, flat surface of a retaining plate 1, which has no groove or glued, wherein during spraying, of course, only those sealing materials come into question, which also develop a sufficient adhesive force during the spraying to keep the seal 2 in its intended location during normal handling. In particular, in Figure 4a, the flat seal is only printed on the retaining plate, sprayed or glued.
  • the sealing material can simultaneously serve for mutual alignment between the electrode and the burner.
  • the sealing material is sprayed with a corresponding excess and fitted in the opposite groove. This results in a clean alignment and defined compression.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasket Seals (AREA)
  • Connection Of Plates (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
EP06111542.4A 2005-03-31 2006-03-22 Tôle de maintien d'une électrode Expired - Lifetime EP1707882B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
SI200631953T SI1707882T1 (sl) 2005-03-31 2006-03-22 Držalna pločevina za elektrodo
PL06111542T PL1707882T3 (pl) 2005-03-31 2006-03-22 Płyta mocująca dla elektrody

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200520005232 DE202005005232U1 (de) 2005-03-31 2005-03-31 Halteblech für Elektrode

Publications (3)

Publication Number Publication Date
EP1707882A2 true EP1707882A2 (fr) 2006-10-04
EP1707882A3 EP1707882A3 (fr) 2008-05-21
EP1707882B1 EP1707882B1 (fr) 2015-05-27

Family

ID=34673498

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06111542.4A Expired - Lifetime EP1707882B1 (fr) 2005-03-31 2006-03-22 Tôle de maintien d'une électrode

Country Status (7)

Country Link
EP (1) EP1707882B1 (fr)
DE (1) DE202005005232U1 (fr)
ES (1) ES2544562T3 (fr)
HU (1) HUE026119T2 (fr)
PL (1) PL1707882T3 (fr)
PT (1) PT1707882E (fr)
SI (1) SI1707882T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010038004A1 (de) * 2010-10-06 2012-04-12 Prüfrex engineering e motion gmbh & co. kg Direktaufstecksystem mit Dichtungskappe

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT515792B1 (de) * 2014-07-28 2015-12-15 Marco Gehrer Kaminofen
CN106369632B (zh) * 2016-10-28 2022-05-31 樱花卫厨(中国)股份有限公司 燃气热水器的高压点火装置及其固定方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333698A1 (de) 1983-09-17 1985-04-04 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden Befestigungseinrichtung eines elektrischen rohrheizkoerpers und verfahren zu deren herstellung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1980708U (de) * 1967-11-25 1968-03-14 Junkers & Co Vorrichtung zum anzuenden und ueberwachen von gasbeheizten geraeten.
AT400483B (de) * 1993-09-16 1996-01-25 Vaillant Gmbh Durchführung für eine elektrode, insbesondere durch die wand einer brennkammer
DE19749105A1 (de) * 1997-11-06 1999-06-10 Beru Ag Stromdurchführungselement

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3333698A1 (de) 1983-09-17 1985-04-04 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden Befestigungseinrichtung eines elektrischen rohrheizkoerpers und verfahren zu deren herstellung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010038004A1 (de) * 2010-10-06 2012-04-12 Prüfrex engineering e motion gmbh & co. kg Direktaufstecksystem mit Dichtungskappe
DE102010038004B4 (de) * 2010-10-06 2014-10-02 Prüfrex engineering e motion gmbh & co. kg Zündfunkengeber und Verfahren zu dessen Herstellung

Also Published As

Publication number Publication date
DE202005005232U1 (de) 2005-06-09
HUE026119T2 (en) 2016-05-30
EP1707882B1 (fr) 2015-05-27
SI1707882T1 (sl) 2015-09-30
ES2544562T3 (es) 2015-09-01
PT1707882E (pt) 2015-09-18
PL1707882T3 (pl) 2015-09-30
EP1707882A3 (fr) 2008-05-21

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