EP0915298B1 - Current feedthrough - Google Patents

Current feedthrough Download PDF

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Publication number
EP0915298B1
EP0915298B1 EP98119860A EP98119860A EP0915298B1 EP 0915298 B1 EP0915298 B1 EP 0915298B1 EP 98119860 A EP98119860 A EP 98119860A EP 98119860 A EP98119860 A EP 98119860A EP 0915298 B1 EP0915298 B1 EP 0915298B1
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EP
European Patent Office
Prior art keywords
holder
insulator
electrode
current feedthrough
elements
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EP98119860A
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German (de)
French (fr)
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EP0915298A3 (en
EP0915298A2 (en
Inventor
Jens Hillius
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BorgWarner Ludwigsburg GmbH
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Beru AG
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Publication of EP0915298A3 publication Critical patent/EP0915298A3/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23QIGNITION; EXTINGUISHING-DEVICES
    • F23Q3/00Igniters using electrically-produced sparks
    • F23Q3/006Details

Definitions

  • the invention relates to a current feed-through element, in particular an ignition or monitoring element for one Gas or oil burner, according to the generic term of the claim 1.
  • a current feed-through element in particular an ignition or monitoring element for one Gas or oil burner, according to the generic term of the claim 1.
  • Such an element is known from DE-A-195 39 516.
  • Usual gas and condensate-tight current feed-through elements usually have rotationally symmetrical insulators on which molded elements are attached to prevent rotation could be.
  • the holders for attaching the current feed-through elements, in which the isolators are located usually from a mounting plate against which the Insulators are sealed by means of a seal, whereby for the preload, i.e. the actual attachment and Sealing, a second sheet metal part ensures that by spot welding is connected to the mounting plate.
  • the electrodes are fixed mechanically in the insulators, as specified in DE 26 45 034 C2. Between both components are provided with an O-ring for sealing, when the high-voltage connector is pressed on is biased on the electrode.
  • the electrode in the usual current feedthrough elements is mechanically fixed in the insulator further the disadvantage that the holding force generated thereby the electrode versus the insulator does not meet the requirements is always enough. This is especially true if the electrode is bent. The one that occurs in the form of a torque Stress can lead to the fact that the The electrode loosens and as a result the tightness of the Connection between the electrode and the insulator wears off.
  • the object underlying the invention is therein, a current feed-through element of the aforementioned Type in such a way that it is built up from a few individual parts is easy to assemble and inexpensive to produce can be.
  • connections from the isolator to Holder and from the electrode to the insulator in the invention Formed over meltings results an improvement in the quality and use of the Current feedthrough element, since these connections over the Life of the current feedthrough element remain tight.
  • 3 and 4 is a common current feedthrough element in the form of a double ignition electrode with metal holder shown.
  • a rotationally symmetrical isolator 1 contains one Electrode 4 and is arranged in a holder 5 made of a mounting plate and another sheet metal part, between which a sealing ring 8a is arranged.
  • the further sheet metal part is via spot welds 10 on the mounting plate attached and ensures the for attachment and sealing necessary pretension between the insulator 1 and the mounting plate.
  • the electrode 4 is mechanically fastened in the insulator 1 and sealed with an O-ring, which High-voltage connection part 7 biased on the electrode 4 becomes.
  • 3 and 4 are also a ground terminal 9 and a ground electrode 4a.
  • 1 and 2 is a first embodiment the current feed-through element according to the invention in the form a double ignition electrode, in which the holder 5 and one or more insulators 1 in one piece from one ceramic material are made.
  • the holder 5 from a ceramic To manufacture material as a single part and with the or to connect the isolators 1.
  • the holder 5 can be made of a ceramic, for example Material manufactured using a ceramic pressing process be, but it is also possible to the holder 5 by injection molding to manufacture.
  • different form elements for example form elements in the form of breakthroughs, depressions, surveys Attachment of holder 5 to the burner, integrated isolators or breakthroughs to accommodate insulators that are rotationally symmetrical are, form elements to prevent rotation with or without retaining collar, molded elements to secure the holder 5 compared to the burner housing, shaped elements to achieve the seal between the holder 5 and the burner housing and form elements to accommodate other elements such as For example, a ground electrode can be provided.
  • the isolators can then be operated using various methods, e.g. by isostatic pressing, and also be provided with the mentioned form elements.
  • connection of the holder 5 and the insulator 1 can by sintering the ceramic parts or by certain connecting means be achieved.
  • a connection by sintering the ceramic parts is in Fig. 5 shown.
  • the insulator 1 is during the hot fire firmly connected to the ceramic holder 5, wherein both parts can be green, one part green and one part can be burned or both parts burned can be present.
  • connection is made by the shrinkage of the ceramic and by sintering if at least one component is in the green state is present. If both components are already burned sharply, sinter together.
  • the collar on the insulator 1 shown in FIG. 5 is used thereby for positioning in the holder 5 and can be cylindrical be executed. For the strength and tightness of this The connection, however, is the observance of tight manufacturing tolerances necessary. If these tolerances are not met there is a possibility of tapering the fret to perform as shown in Fig. 6. Through this Training will in any case be a close connection between Holder 5 and isolator 1 reached. The isolator 1 centered in the holder 5.
  • a connection between insulator 1 and holder 5 under Use of a connecting means is shown in Fig. 7.
  • a glaze or glass 3 may be used, the use of a glaze being preferred is because most insulators 1 are glazed. Thereby it is possible to use glazed insulators 1 with unglazed Holders 5 to connect in the glaze firing.
  • the insulator collar can be cylindrical or conical.
  • connection of the electrode 4 with the insulator 1 is also achieved gastight by melting glass. There are however, other attachments are also possible in principle, which ensure a tight connection between them.
  • Essential for the current feed-through elements described above is the execution of the holder 5 from one ceramic workpiece. It follows that the or Insulators 1 formed with the holder 5 in one piece can be manufactured, but also both components separately and connected to each other in the manner described above can be. It is possible to isolators 1 and Holder 5 different types of individual electrodes up to To combine electrode blocks. With standardization the junction between the isolator, i.e. this results in the insulator collar and the holder 5 Modular system that is an inexpensive production of a Range of current feed-through elements allowed.
  • the strength of the holder in the range of the intended Fixing holes is more of several Factors, e.g. the screw diameter or the required Tightening torque or the nature of the boiler wall of the depending burner. With a wall thickness of the ceramic approx. 6 mm between the screw head and the burner wall sufficient strength can be assumed become. This has been confirmed by tests.
  • the current feed-through elements described in Gas and condensate-tight design have the advantage that compared to the usual current feed-through elements a smaller number of individual parts and therefore the number of assembly operations is significantly reduced.
  • the usual current feed-through elements are namely two Provide sheet metal parts and a gasket that thereby assembles be that the insulator in a welding device a sheet is placed over the insulator, the seal is placed over the insulator, the second Sheet metal part is placed and the sheet metal parts pressed and then be welded.
  • the current feed-through element according to the invention can be formed in one piece with the insulator holder the holder manufacture in connection with the isolator by means of a pressing tool or by another usual manufacturing process, e.g. by ceramic injection molding, so that none for fastening the insulator in the holder Operations. If isolators and holders are separate can be manufactured due to the use of standardized Parts of the individual machines are better utilized and can be a certain variety of types reach different holders.
  • FIGS. 8 and 9 A holder made of a ceramic material allows in addition to the constructions described above, the attachment of ground electrodes, as shown in FIGS. 8 and 9 is.
  • Fig. 8 shows a ground electrode 4a, which in a Hole is made in the holder 5. Is in this area the ceramic was previously metallized. The connection between this conductive layer and the ground electrode 4a then e.g. through a solder joint 6.
  • Fig. 9 is a variant shown, in which the ground electrode 4a with, for example welded tab 9 through a through hole leads in the holder 5 and sealed with the help of glass is what is analogous to the formation of FIG. 7.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Spark Plugs (AREA)
  • Microwave Tubes (AREA)
  • Electron Sources, Ion Sources (AREA)
  • Control Of Combustion (AREA)
  • Insulators (AREA)
  • Bipolar Transistors (AREA)

Abstract

The current leadthrough element has at least one electrode (4) mounted in an insulator (1) seated tightly in a ceramic holder (5) for fixing the current leadthrough element. The holder and insulator can be made in one piece from a ceramic material.

Description

Die Erfindung betrifft ein Stromdurchführungselement, insbesondere ein Zünd- oder Überwachungselement für einen Gas- oder Ölbrenner, nach dem Gattungsbegriff des Patentanspruchs 1. Ein derartiges Element ist aus DE-A-195 39 516 bekannt.The invention relates to a current feed-through element, in particular an ignition or monitoring element for one Gas or oil burner, according to the generic term of the claim 1. Such an element is known from DE-A-195 39 516.

Bei den in der jüngsten Zeit entwickelten Öl- oder Gasbrennern, den sogenannten Brennwertgeräten, werden abgedichtete Brennräume benötigt, was zur Folge hat, daß auch die Stromdurchführungselemente dicht, d.h. insbesondere gasund kondensatdicht sein müssen.In the recently developed oil or Gas burners, the so-called condensing boilers, are sealed Combustion chambers needed, which has the consequence that also the current feed-through elements are tight, i.e. especially gas and must be condensate-tight.

Übliche gas- und kondensatdichte Stromdurchführungselemente weisen zumeist rotationssymmetrische Isolatoren auf, an denen Formelemente zur Verdrehsicherung angebracht sein können. Die Halter zum Befestigen der Stromdurchführungselemente, in denen die Isolatoren sitzen, bestehen üblicherweise aus einem Befestigungsblech, gegen das die Isolatoren mittels einer Dichtung abgedichtet sind, wobei für die Vorspannkraft, d.h. die eigentliche Befestigung und Abdichtung, ein zweites Blechteil sorgt, das durch Punktschweißungen mit dem Befestigungsblech verbunden ist. Die Befestigung der Elektroden in den Isolatoren erfolgt mechanisch, wie es in der DE 26 45 034 C2 angegeben ist. Zwischen beiden Bauteilen wird dabei ein O-Ring zur Abdichtung vorgesehen, der beim Aufpressen des Hochspannungsanschlußstücks auf die Elektrode vorgespannt wird.Usual gas and condensate-tight current feed-through elements usually have rotationally symmetrical insulators on which molded elements are attached to prevent rotation could be. The holders for attaching the current feed-through elements, in which the isolators are located usually from a mounting plate against which the Insulators are sealed by means of a seal, whereby for the preload, i.e. the actual attachment and Sealing, a second sheet metal part ensures that by spot welding is connected to the mounting plate. The The electrodes are fixed mechanically in the insulators, as specified in DE 26 45 034 C2. Between both components are provided with an O-ring for sealing, when the high-voltage connector is pressed on is biased on the electrode.

Die üblichen Stromdurchführungselemente der oben beschriebenen Art sind allerdings nur für Brenner geeignet, bei denen die Temperatur im Bereich der Verbindung zwischen dem Isolator und dem Befestigungsblech nicht höher als 400°C ist. Der Grund dafür ist in dem üblicherweise verwandten Dichtungswerkstoff, der Festigkeit der Bleche sowie der Festigkeit der Schweißverbindungen zu sehen. Es ist darüber hinaus möglich, daß bei dem üblichen Aufbau die Dichtheit der Verbindung zwischen dem Isolator und dem Befestigungsblech über die Lebensdauer des Stromdurchführungselementes nachläßt. Das gilt insbesondere bei hohen Temperaturen und häufigen Temperaturwechseln.The usual current feed-through elements described above Art are only suitable for burners, at which the temperature in the area of the connection between the insulator and the mounting plate not higher than 400 ° C is. The reason for this is in the usually related Sealing material, the strength of the sheets and the Strength of welded joints can be seen. It's about it also possible that the tightness in the usual structure the connection between the insulator and the mounting plate over the life of the current feed-through element subsides. This is especially true at high temperatures and frequent temperature changes.

Ein weiterer Nachteil der üblichen Stromdurchführungselemente besteht darin, daß sie aus vielen Einzelteilen bestehen. Diese müssen mit relativ engen Toleranzen gefertigt werden, um die Funktion des gesamten Stromdurchführungselementes im montierten Zustand zu gewährleisten. Die Montage ist durch das Zusammenfügen der Einzelteile und den anschließenden Schweißprozeß sehr aufwendig.Another disadvantage of the usual current feed-through elements is that it consists of many individual parts consist. These have to be manufactured with relatively narrow tolerances be to the function of the entire current feedthrough element to ensure in the assembled state. The Assembly is by assembling the individual parts and the subsequent welding process very expensive.

Da die Elektrode bei den üblichen Stromdurchführungselementen im Isolator mechanisch befestigt ist, besteht weiterhin der Nachteil, daß die dadurch erzeugte Haltekraft der Elektrode gegenüber dem Isolator den Anforderungen nicht immer genügt. Das gilt insbesondere dann, wenn die Elektrode gebogen ist. Die hierbei in Form eines Drehmomentes auftretende Belastung kann im Betrieb dazu führen, daß sich die Elektrode lockert und als Folge davon die Dichtheit der Verbindung zwischen der Elektrode und dem Isolator nachläßt.Since the electrode in the usual current feedthrough elements is mechanically fixed in the insulator further the disadvantage that the holding force generated thereby the electrode versus the insulator does not meet the requirements is always enough. This is especially true if the electrode is bent. The one that occurs in the form of a torque Stress can lead to the fact that the The electrode loosens and as a result the tightness of the Connection between the electrode and the insulator wears off.

Die der Erfindung zugrundeliegende Aufgabe besteht darin, ein Stromdurchführungselement der eingangs genannten Art so auszubilden, daß es aus wenigen Einzelteilen aufgebaut ist und somit einfach montiert und kostengünstig produziert werden kann.The object underlying the invention is therein, a current feed-through element of the aforementioned Type in such a way that it is built up from a few individual parts is easy to assemble and inexpensive to produce can be.

Diese Aufgabe wird gemäß der Erfindung durch die Ausbildung gelöst, die im Patentanspruch 1 angegeben ist.This object is achieved according to the invention through training solved, which is specified in claim 1.

Besonders bevorzugte Ausgestaltungen und Weiterbildungen des erfindungsgemäßen Stromdurchführungselementes sind Gegenstand der Patentansprüche 2 bis 6.Particularly preferred refinements and developments of the current feedthrough element according to the invention Subject matter of claims 2 to 6.

Wenn insbesondere die Verbindungen vom Isolator zum Halter und von der Elektrode zum Isolator in der erfindungsgemäßen Weise über Glaseinschmelzungen gebildet sind, ergibt sich eine Verbesserung der Qualität und der Nutzung des Stromdurchführungselementes, da diese Verbindungen über die Lebensdauer des Stromdurchführungselementes dicht bleiben.If in particular the connections from the isolator to Holder and from the electrode to the insulator in the invention Formed over meltings, results an improvement in the quality and use of the Current feedthrough element, since these connections over the Life of the current feedthrough element remain tight.

Im folgenden werden anhand der zugehörigen Zeichnungen besonders bevorzugte Ausführungsbeispiele der Erfindung näher beschrieben. Es zeigen

  • Fig. 1 eine Schnittansicht einer Doppelzündelektrode mit einstückigem Isolator und Halter aus Keramik,
  • Fig. 2 eine Draufsicht auf die in Fig. 1 dargestellte Doppelzündelektrode,
  • Fig. 3 eine Schnittansicht einer üblichen Doppelzündelektrode mit Metallhalter,
  • Fig. 4 eine Draufsicht auf die in Fig. 3 dargestellte Doppelzündelektrode,
  • Fig. 5 in einer Schnittansicht die zweiteilige Ausführung von Halter und Isolator aus Keramik mit eingesintertem Isolator bei einem weiteren Ausführungsbeispiel der Erfindung,
  • Fig. 6 in einer Schnittansicht die zweiteilige Ausführung von Halter und Isolator aus Keramik mit eingesintertem Isolator bei noch einem Ausführungsbeispiel der Erfindung,
  • Fig. 7 in einer Schnittansicht die zweiteilige Ausführung von Halter und Isolator aus Keramik, wobei der Isolator mit Glasur eingeschmolzen ist, bei noch einem Ausführungsbeispiel der Erfindung,
  • Fig. 8 in einer Schnittansicht eine an einen Keramikhalter gelötete Masseelektrode bei einem Ausführungsbeispiel der Erfindung und
  • Fig. 9 in einer Schnittansicht eine an einem Keramikhalter mit eingeschmolzener Glasur angebrachte Masseelektrode bei einem Ausführungsbeispiel der Erfindung.
  • Particularly preferred exemplary embodiments of the invention are described in more detail below with reference to the accompanying drawings. Show it
  • 1 is a sectional view of a double ignition electrode with one-piece insulator and ceramic holder,
  • 2 is a plan view of the double ignition electrode shown in FIG. 1,
  • 3 is a sectional view of a conventional double ignition electrode with a metal holder,
  • 4 is a top view of the double ignition electrode shown in FIG. 3,
  • 5 is a sectional view of the two-part design of holder and insulator made of ceramic with sintered insulator in a further embodiment of the invention,
  • 6 is a sectional view of the two-part design of the holder and insulator made of ceramic with a sintered insulator in another embodiment of the invention,
  • 7 is a sectional view of the two-part design of the holder and insulator made of ceramic, the insulator being melted down with glaze, in another embodiment of the invention,
  • Fig. 8 is a sectional view of a ground electrode soldered to a ceramic holder in an embodiment of the invention and
  • Fig. 9 is a sectional view of a ground electrode attached to a ceramic holder with melted glaze in one embodiment of the invention.
  • In den Fig. 3 und 4 ist ein übliches Stromdurchführungselement in Form einer Doppelzündelektrode mit Metallhalter dargestellt.3 and 4 is a common current feedthrough element in the form of a double ignition electrode with metal holder shown.

    Ein rotationssymmetrischer Isolator 1 enthält eine Elektrode 4 und ist in einem Halter 5 angeordnet, der aus einem Befestigungsblech und einem weiteren Blechteil besteht, zwischen denen ein Dichtungsring 8a angeordnet ist. Das weitere Blechteil ist über Punktschweißungen 10 am Befestigungsblech angebracht und sorgt für die zur Befestigung und Abdichtung notwendige Vorspannkraft zwischen dem Isolator 1 und dem Befestigungsblech.A rotationally symmetrical isolator 1 contains one Electrode 4 and is arranged in a holder 5 made of a mounting plate and another sheet metal part, between which a sealing ring 8a is arranged. The further sheet metal part is via spot welds 10 on the mounting plate attached and ensures the for attachment and sealing necessary pretension between the insulator 1 and the mounting plate.

    Die Elektrode 4 ist im Isolator 1 mechanisch befestigt und über einen O-Ring abgedichtet, der beim Aufpressen eines Hochspannungsanschlußteils 7 auf die Elektrode 4 vorgespannt wird.The electrode 4 is mechanically fastened in the insulator 1 and sealed with an O-ring, which High-voltage connection part 7 biased on the electrode 4 becomes.

    In den Fig. 3 und 4 sind weiterhin ein Masseanschluß 9 und eine Masseelektrode 4a dargestellt.3 and 4 are also a ground terminal 9 and a ground electrode 4a.

    In den Fig. 1 und 2 ist ein erstes Ausführungsbeispiel des erfindungsgemäßen Stromdurchführungselementes in Form einer Doppelzündelektrode dargestellt, bei dem der Halter 5 und ein oder mehrere Isolatoren 1 in einem Stück aus einem keramischen Werkstoff gefertigt sind.1 and 2 is a first embodiment the current feed-through element according to the invention in the form a double ignition electrode, in which the holder 5 and one or more insulators 1 in one piece from one ceramic material are made.

    Es ist aber auch möglich, den Halter 5 aus einem keramischen Werkstoff als Einzelteil zu fertigen und mit dem oder den Isolatoren 1 zu verbinden.But it is also possible to make the holder 5 from a ceramic To manufacture material as a single part and with the or to connect the isolators 1.

    Dazu kann beispielsweise der Halter 5 aus einem keramischen Werkstoff nach einem Keramikpreßverfahren hergestellt werden, es ist aber auch möglich, den Halter 5 durch Spritzgießen zu fertigen. Je nach den Erfordernissen können am Halter 5 verschiedene Formelemente, beispielsweise Formelemente in Form von Durchbrüchen, Einsenkungen, Erhebungen zur Befestigung des Halters 5 am Brenner, integrierte Isolatoren oder Durchbrüche zur Aufnahme von Isolatoren, die rotationssymmetrisch sind, Formelemente zur Verdrehsicherung mit oder ohne Haltebund, Formelemente zur Lagersicherung des Halters 5 gegenüber dem Brennergehäuse, Formelemente zur Erreichung der Abdichtung zwischen dem Halter 5 und dem Brennergehäuse und Formelemente zur Aufnahme von weiteren Elementen wie beispielsweise einer Masseelektrode vorgesehen sein.For this purpose, the holder 5 can be made of a ceramic, for example Material manufactured using a ceramic pressing process be, but it is also possible to the holder 5 by injection molding to manufacture. Depending on the requirements, on Holder 5 different form elements, for example form elements in the form of breakthroughs, depressions, surveys Attachment of holder 5 to the burner, integrated isolators or breakthroughs to accommodate insulators that are rotationally symmetrical are, form elements to prevent rotation with or without retaining collar, molded elements to secure the holder 5 compared to the burner housing, shaped elements to achieve the seal between the holder 5 and the burner housing and form elements to accommodate other elements such as For example, a ground electrode can be provided.

    Die Isolatoren können dann über verschiedene Verfahren, z.B. durch ein isostatisches Pressen, hergestellt werden und gleichfalls mit den erwähnten Formelementen versehen sein.The isolators can then be operated using various methods, e.g. by isostatic pressing, and also be provided with the mentioned form elements.

    Die Verbindung des Halters 5 und des Isolators 1 kann durch Sintern der Keramikteile oder durch bestimmte Verbindungsmittel erzielt werden.The connection of the holder 5 and the insulator 1 can by sintering the ceramic parts or by certain connecting means be achieved.

    Eine Verbindung durch Sintern der Keramikteile ist in Fig. 5 dargestellt. Der Isolator 1 wird während des Scharfbrandes fest mit dem keramischen Halter 5 verbunden, wobei beide Teile im Grünlingszustand sein können, ein Teil grün und ein Teil gebrannt sein kann oder beide Teile gebrannt vorliegen können.A connection by sintering the ceramic parts is in Fig. 5 shown. The insulator 1 is during the hot fire firmly connected to the ceramic holder 5, wherein both parts can be green, one part green and one part can be burned or both parts burned can be present.

    Die Verbindung erfolgt durch die Schwindung der Keramik und durch Sintern, wenn mindestens ein Bauteil im Grünlingszustand vorliegt. Sind beide Bauteile bereits scharf gebrannt, sintern sie zusammen. The connection is made by the shrinkage of the ceramic and by sintering if at least one component is in the green state is present. If both components are already burned sharply, sinter together.

    Der in Fig. 5 dargestellte Bund am Isolator 1 dient dabei zur Positionierung im Halter 5 und kann zylindrisch ausgeführt sein. Für die Festigkeit und Dichtheit dieser Verbindung ist jedoch die Einhaltung enger Fertigungstoleranzen notwendig. Falls diese Toleranzen nicht eingehalten werden können, besteht die Möglichkeit, den Bund konisch auszuführen, wie es in Fig. 6 dargestellt ist. Durch diese Ausbildung wird in jedem Fall eine dichte Verbindung zwischen Halter 5 und Isolator 1 erreicht. Dabei wird der Isolator 1 im Halter 5 zentriert.The collar on the insulator 1 shown in FIG. 5 is used thereby for positioning in the holder 5 and can be cylindrical be executed. For the strength and tightness of this The connection, however, is the observance of tight manufacturing tolerances necessary. If these tolerances are not met there is a possibility of tapering the fret to perform as shown in Fig. 6. Through this Training will in any case be a close connection between Holder 5 and isolator 1 reached. The isolator 1 centered in the holder 5.

    Eine Verbindung zwischen Isolator 1 und Halter 5 unter Verwendung eines Verbindungsmittels ist in Fig. 7 dargestellt. Als Verbindungsmittel kann eine Glasur oder Glas 3 verwandt werden, wobei die Verwendung einer Glasur bevorzugt ist, da die meisten Isolatoren 1 glasiert werden. Dadurch ist es möglich, glasierte Isolatoren 1 mit unglasierten Haltern 5 beim Glasurbrand zu verbinden. Der Isolatorbund kann dabei zylindrisch oder konisch ausgeführt sein.A connection between insulator 1 and holder 5 under Use of a connecting means is shown in Fig. 7. A glaze or glass 3 may be used, the use of a glaze being preferred is because most insulators 1 are glazed. Thereby it is possible to use glazed insulators 1 with unglazed Holders 5 to connect in the glaze firing. The insulator collar can be cylindrical or conical.

    Die Verwendung von Glas als Verbindungsmittel ist als eine Möglichkeit anzusehen, große Fertigungstoleranzen auszugleichen. Hierbei ist die Verwendung eines zylindrischen Isolatorbunds vorteilhaft. Zwischen dem Isolatorbund und dem Halter 5 wird ein Spalt gelassen, in den vorgefertigte Glasteile eingelegt werden, die dann während eines Ofendurchlaufes eingeschmolzen werden, wie es in Fig. 7 dargestellt ist.The use of glass as a lanyard is as to see a way to compensate for large manufacturing tolerances. Here is the use of a cylindrical Insulator collar advantageous. Between the insulator collar and the Holder 5 is left a gap in the prefabricated glass parts which are then inserted during an oven run be melted down, as shown in Fig. 7 is.

    Die Verbindung der Elektrode 4 mit dem Isolator 1 wird gleichfalls durch Glaseinschmelzen gasdicht erzielt. Es sind allerdings auch andere Befestigungen grundsätzlich möglich, die eine dichte Verbindung dazwischen gewährleisten.The connection of the electrode 4 with the insulator 1 is also achieved gastight by melting glass. There are however, other attachments are also possible in principle, which ensure a tight connection between them.

    Wesentlich bei den oben beschriebenen Stromdurchführungselementen ist die Ausführung des Halters 5 aus einem keramischen Werkstück. Daraus ergibt sich, daß der oder die Isolatoren 1 mit dem Halter 5 in einem Stück ausgebildet werden können, aber auch beide Bauteile separat gefertigt und in der oben beschriebenen Weise miteinander verbunden werden können. Dabei ist es möglich, die Isolatoren 1 und Halter 5 verschiedener Arten von Einzelelektroden bis zu Elektrodenblöcken hin zu kombinieren. Mit einer Standardisierung der Verbindungsstelle zwischen dem Isolator, d.h. dem Isolatorbund und dem Halter 5 ergibt sich dadurch ein Baukastensystem, das eine kostengünstige Produktion einer Palette von Stromdurchführungselementen erlaubt.Essential for the current feed-through elements described above is the execution of the holder 5 from one ceramic workpiece. It follows that the or Insulators 1 formed with the holder 5 in one piece can be manufactured, but also both components separately and connected to each other in the manner described above can be. It is possible to isolators 1 and Holder 5 different types of individual electrodes up to To combine electrode blocks. With standardization the junction between the isolator, i.e. this results in the insulator collar and the holder 5 Modular system that is an inexpensive production of a Range of current feed-through elements allowed.

    Es wurde eine Prüfung der Festigkeit und Dichtheit der Verbindung durchgeführt, indem gebrannte Isolatoren mit einem Durchmesser von 6,0 mm und einem Bunddurchmesser von 7,9 mm in eine Bohrung mit einem Durchmesser von 8,0 mm abgestuft auf einen Durchmesser von 6,5 mm eines Halters im Grünlingszustand eingelegt wurden. Die zusammengefügten Teile durchliefen den Scharfbrand und wurden anschließend geprüft. Die Ausdrückkraft lag dabei zwischen 300N und 1100N. Von den auseinandergedrückten Teilen wurde ein Teil gefügt, während die anderen zusätzlich mit einer Glasur versehen wurden. Die ohne Glasur gefügten Teile wurden erneut scharfgebrannt, die Teile mit Glasur durch den Glasurbrand gelassen. Anschließend wurden die Verbindungsstellen mit Fuchsin auf Dichtheit geprüft mit dem Ergebnis, daß die Verbindung dicht war. Danach wurden die Teile einem Druck von 5bar ausgesetzt, und zwar derart, daß der Druck der Verbindung entgegenwirkt, was den ungünstigsten Anwendungsfall darstellt. Auch bei dieser Prüfung blieb die Dichtheit aller Verbindungen erhalten.There was a test of the strength and tightness of the Connection performed by using burned insulators a diameter of 6.0 mm and a collar diameter of 7.9 mm in a hole with a diameter of 8.0 mm graduated to a diameter of 6.5 mm of a holder in Green state were inserted. The merged Parts went through the sharp fire and then became checked. The expressive force was between 300N and 1100N. A part of the pressed parts became added while the others additionally with a glaze were provided. The parts joined without glaze were burned again, the parts with glaze through the Glaze firing left. Then the Connections with Fuchsin checked for leaks with the Result that the connection was tight. After that the Parts exposed to a pressure of 5bar, in such a way that the pressure of the connection counteracts what the worst case. This one too The tightness of all connections was retained during the test.

    Wenn der Halter und die Isolatoren in einem Stück ausgebildet sind, kann von einer 100 %-igen Dichtheit ausgegangen werden. Die Verbindung durch Glaseinschmelzen erzeugt aber ebenfalls dichte Verbindungen zwischen Elektrode und Isolator.If the holder and the insulators are formed in one piece 100% tightness can be assumed become. The connection is created by melting the glass but also tight connections between the electrode and Insulator.

    Die Festigkeit des Halters im Bereich der daran vorgesehenen Befestigungsbohrungen ist im übrigen von mehreren Faktoren, z.B. dem Schraubendurchmesser bzw. dem erforderlichen Anzugsmoment bzw. der Beschaffenheit der Kesselwand des betreffenden Brenner abhängig. Bei einer Wanddicke der Keramik von ca. 6 mm zwischen dem Schraubenkopf und der Brennerwand kann von einer ausreichenden Festigkeit ausgegangen werden. Das hat sich durch Versuche bestätigt.The strength of the holder in the range of the intended Fixing holes is more of several Factors, e.g. the screw diameter or the required Tightening torque or the nature of the boiler wall of the depending burner. With a wall thickness of the ceramic approx. 6 mm between the screw head and the burner wall sufficient strength can be assumed become. This has been confirmed by tests.

    Die oben beschriebenen Stromdurchführungselemente in gas- und kondensatdichter Ausführung haben den Vorteil, daß sie gegenüber den üblichen Stromdurchführungselementen mit einer geringeren Anzahl von Einzelteilen auskommen und daher die Anzahl der Montagevorgänge erheblich reduziert ist. Bei den üblichen Stromdurchführungselementen sind nämlich zwei Blechteile und eine Dichtung vorzusehen, die dadurch montiert werden, daß der Isolator in eine Schweißvorrichtung eingelegt wird, ein Blech über dem Isolator angeordnet wird, die Dichtung über dem Isolator angeordnet wird, das zweite Blechteil aufgelegt wird und die Blechteile angedrückt und dann verschweißt werden.The current feed-through elements described in Gas and condensate-tight design have the advantage that compared to the usual current feed-through elements a smaller number of individual parts and therefore the number of assembly operations is significantly reduced. at the usual current feed-through elements are namely two Provide sheet metal parts and a gasket that thereby assembles be that the insulator in a welding device a sheet is placed over the insulator, the seal is placed over the insulator, the second Sheet metal part is placed and the sheet metal parts pressed and then be welded.

    Bei dem erfindungsgemäßen Stromdurchführungselement mit in einem Stück mit dem Isolator ausgebildeten Halter kann die Halterherstellung in Verbindung mit dem Isolator mittels eines Preßwerkzeuges oder nach einem anderen üblichen Fertigungsverfahren, z.B. durch Keramik-Spritzgießen, erfolgen, so daß für die Befestigung des Isolators im Halter keine Arbeitsvorgänge anfallen. Wenn Isolatoren und Halter separat gefertigt werden, können aufgrund der Verwendung von standardisierten Teilen die einzelnen Maschinen besser ausgelastet werden und läßt sich eine gewisse Typenvielfalt durch verschiedene Halter erreichen.With the current feed-through element according to the invention Can be formed in one piece with the insulator holder the holder manufacture in connection with the isolator by means of a pressing tool or by another usual manufacturing process, e.g. by ceramic injection molding, so that none for fastening the insulator in the holder Operations. If isolators and holders are separate can be manufactured due to the use of standardized Parts of the individual machines are better utilized and can be a certain variety of types reach different holders.

    Stromdurchführungselemente mit einem Halter aus einem keramischen Werkstoff sind über die gesamte Lebensdauer dicht, wobei in vorteilhafter Weise verschiedene Formelemente am Halter angebracht werden können, die zum Teil aufwendige Konstruktionen, z.B. zur Lagesicherung ersetzen. Es können gleichfalls Vertiefungen an den Befestigungslöchern angebracht sein, die zur Aufnahme von Bunden dienen, die durch bolzengeschweißte Befestigungsschrauben am Brenner entstehen.Current feed-through elements with a holder from one ceramic material are for the entire life tight, advantageously different shape elements can be attached to the holder, which is sometimes complex Constructions, e.g. replace to secure position. It can also have recesses in the mounting holes be attached, which serve to hold bundles, the by means of bolt-welded fastening screws on the burner arise.

    Im übrigen ist die Gefahr elektrischer Überschläge geringer, da leitende Materialien weiter von der Stromdurchführung entfernt sind, was eine Verlängerung der Kriechstrecke bedeutet.Otherwise there is a risk of electrical flashovers less because conductive materials continue from the current feedthrough are removed, which is an extension of the creepage distance means.

    Ein Halter aus einem keramischen Werkstoff erlaubt neben den oben beschriebenen Konstruktionen auch das Anbringen von Masseelektroden, wie es in den Fig. 8 und 9 dargestellt ist. Fig. 8 zeigt eine Masseelektrode 4a, die in eine Bohrung im Halter 5 eingebracht ist. In diesem Bereich ist die Keramik zuvor metallisiert. Die Verbindung zwischen dieser leitenden Schicht und der Masseelektrode 4a erfolgt dann z.B. durch eine Lötstelle 6. In Fig. 9 ist eine Variante dargestellt, bei der die Masseelektrode 4a mit beispielsweise angeschweißtem Flachstecker 9 durch eine Durchgangsbohrung im Halter 5 führt und mit Hilfe von Glas dicht verschmolzen ist, was der Ausbildung von Fig. 7 analog ist.A holder made of a ceramic material allows in addition to the constructions described above, the attachment of ground electrodes, as shown in FIGS. 8 and 9 is. Fig. 8 shows a ground electrode 4a, which in a Hole is made in the holder 5. Is in this area the ceramic was previously metallized. The connection between this conductive layer and the ground electrode 4a then e.g. through a solder joint 6. In Fig. 9 is a variant shown, in which the ground electrode 4a with, for example welded tab 9 through a through hole leads in the holder 5 and sealed with the help of glass is what is analogous to the formation of FIG. 7.

    Durch die Anordnung von Formelementen ist es in Abhängigkeit vom Durchbruch in der Brennerwand möglich, die Dichtung zwischen Brenner und Stromdurchführung einzusparen.The arrangement of form elements makes it dependent possible from the breakthrough in the burner wall, the seal savings between burner and power bushing.

    Wie bereits erwähnt, ist es möglich, ein Baukastensystem aufzustellen, die Montagevorgänge zu automatisieren, und zwar z.B. beim Verbinden der Isolatoren und der Halter mittels Glasur im Glasururbrand oder durch Glaseinschmelzen.As already mentioned, it is possible to use a modular system to set up, to automate the assembly processes, e.g. when connecting the insulators and the holders by means of glaze in the glaze firing or by melting glass.

    Stromdurchführungselemente mit Keramikhaltern sind überall einsetzbar, und zwar auch in Brennern, die nicht dicht sein müssen, dort sind dann alle anderen Befestigungsvarianten zwischen den Elektroden und den Isolatoren möglich.Current feed-through elements with ceramic holders are can be used everywhere, even in burners that are not must be tight, then there are all other fastening variants possible between the electrodes and the insulators.

    Claims (6)

    1. Current feedthrough element, especially an ignition or monitoring element for a gas or oil burner, having at least one electrode arranged in an insulator (1) which is made of a ceramics material and sits tightly in a holder (5) for securing the current feedthrough element, characterised in that the holder (5) is manufactured from a ceramics material.
    2. Current feedthrough element according to claim 1, characterised in that the holder (5) and the insulator (1) are manufactured in one piece from a ceramics material.
    3. Current feedthrough element according to claim 1 or 2, characterised in that there are formed on the holder (5) and/or on the insulator (1) shaped elements for securing the holder (5) to the burner, for maintaining the position of the holder (5) relative to the burner housing, for sealing between the holder (5) and the burner housing, and for receiving further elements such as, for example, an earth electrode and integrated insulators or openings for receiving insulators.
    4. Current feedthrough element according to claim 1, characterised in that the holder (5) and the insulator (1) are each made of a ceramics material and are joined together by sintering.
    5. Current feedthrough element according to claim 1, characterised in that the holder (5) and the insulator (1) are joined together by means of glass or a glaze as joining means.
    6. Current feedthrough element according to any one of the preceding claims, characterised in that the insulator (1) and the electrode (4) are joined together by the fusion of glass.
    EP98119860A 1997-11-06 1998-10-20 Current feedthrough Expired - Lifetime EP0915298B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE19749105A DE19749105A1 (en) 1997-11-06 1997-11-06 Current feed-through element
    DE19749105 1997-11-06

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    EP0915298A2 EP0915298A2 (en) 1999-05-12
    EP0915298A3 EP0915298A3 (en) 2000-04-26
    EP0915298B1 true EP0915298B1 (en) 2003-09-03

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    AT (1) ATE249014T1 (en)
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    Families Citing this family (11)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    DE19906032B4 (en) * 1999-02-12 2016-06-09 Federal-Mogul Ignition Gmbh Current feedthrough element for a gas or oil burner
    DE202004006644U1 (en) * 2004-04-27 2004-08-26 Buderus Heiztechnik Gmbh electrode
    DE202005005232U1 (en) * 2005-03-31 2005-06-09 Rauschert Gmbh Holding plate for electrode
    DE102006023841A1 (en) * 2006-05-19 2007-11-22 Viessmann Werke Gmbh & Co Kg electrode assembly
    DE102007002118A1 (en) * 2007-01-11 2008-07-17 Siemens Ag Insulator and method of making an insulator
    ITVA20100010U1 (en) * 2010-03-25 2011-09-26 Whirlpool Co FIXING SYSTEM FOR AN IGNITION ELECTRODE OF A GAS BURNER.
    IT1400683B1 (en) * 2010-07-06 2013-06-28 Castfutura Spa IGNITION DEVICE FOR BOILERS OR SIMILAR.
    DE102010038004B4 (en) * 2010-10-06 2014-10-02 Prüfrex engineering e motion gmbh & co. kg Spark generator and method for its production
    AT515792B1 (en) * 2014-07-28 2015-12-15 Marco Gehrer Wood stove
    IT201600119329A1 (en) * 2016-11-24 2018-05-24 Power Tech S R L IGNITION / DETECTION CANDLE FOR BOILERS OR SIMILAR, SYSTEM AND METHOD TO PRODUCE THIS CANDLE
    DE102017210590B4 (en) * 2017-06-23 2019-03-28 Convotherm Elektrogeräte GmbH Connecting device for an electrode

    Family Cites Families (8)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2329088A1 (en) * 1975-10-21 1977-05-20 Djeddah Jacques CANDLE OR IGNITION ELECTRODE FOR BURNER
    FR2412034A1 (en) * 1977-12-17 1979-07-13 Vaillant Sarl PILOT
    DE3344679A1 (en) * 1983-12-10 1985-06-20 Rheometron AG, Basel Method of sintering pin-type electrodes or electrode shafts made of metallic material into a ceramic measuring tube for magneto-inductive flow meters
    DE3532472A1 (en) * 1985-09-11 1987-03-19 Beru Werk Ruprecht Gmbh Co A Multi-element line bushing through an insulator
    DE3720061A1 (en) * 1987-06-16 1988-12-29 Philips Patentverwaltung Electrical bushing for high-pressure containers with internal pressures of more than 1000 bar
    US4786762A (en) * 1988-03-03 1988-11-22 Emerson Electric Co. Sleeve arrangement for a hermetic terminal assembly
    US5368220A (en) * 1992-08-04 1994-11-29 Morgan Crucible Company Plc Sealed conductive active alloy feedthroughs
    DE19539516A1 (en) * 1995-10-25 1997-04-30 Rauschert Gmbh & Co Kg Paul Mounting for ceramic firing/ignition electrode of burner

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    DE19749105A1 (en) 1999-06-10
    ATE249014T1 (en) 2003-09-15
    EP0915298A3 (en) 2000-04-26
    DE59809477D1 (en) 2003-10-09
    EP0915298A2 (en) 1999-05-12

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