EP1281915A1 - Method for connecting a rod-shaped heating body with a tubular support and glow plug obtained by this method - Google Patents

Method for connecting a rod-shaped heating body with a tubular support and glow plug obtained by this method Download PDF

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Publication number
EP1281915A1
EP1281915A1 EP02013626A EP02013626A EP1281915A1 EP 1281915 A1 EP1281915 A1 EP 1281915A1 EP 02013626 A EP02013626 A EP 02013626A EP 02013626 A EP02013626 A EP 02013626A EP 1281915 A1 EP1281915 A1 EP 1281915A1
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EP
European Patent Office
Prior art keywords
glow plug
ring
carrier
carrier ring
rod
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
EP02013626A
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German (de)
French (fr)
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EP1281915B1 (en
Inventor
Martin Eller
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BorgWarner Ludwigsburg GmbH
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Beru AG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
    • F02P19/00—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition
    • F02P19/02—Incandescent ignition, e.g. during starting of internal combustion engines; Combination of incandescent and spark ignition electric, e.g. layout of circuits of apparatus having glowing plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
    • F23Q7/001—Glowing plugs for internal-combustion engines
    • F23Q2007/004—Manufacturing or assembling methods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49082—Resistor making
    • Y10T29/49083—Heater type

Definitions

  • the invention relates to a method for connection a rod-shaped heating element with a tubular support element and glow plugs with such a rod-shaped Heating element in a tubular glow plug body.
  • Rod-shaped heating elements which are tubular Carrier elements are stored; one of the most famous Examples are glow plugs, in which a rod-shaped Glow plug stored in a tubular glow plug body is.
  • the glow plug is pressed into the glow plug body; only materials can be used here the sufficient ductility and dimensional stability for have such a pressing process.
  • scoring can occur when pressing in, the leak between glow plug and glow plug body to lead.
  • the invention has for its object methods for Connecting a rod-shaped heating element with a tubular one
  • this method is not intended to be of a particular Component length to avoid kinking Be dependent on the component; in particular, ceramic should also rod-shaped heating elements with metallic support elements can be easily connected, the described Streaking should not occur.
  • Forming is an essential feature of the invention of the rod-shaped heating element with a carrier ring by means of magnetic forming technology, this technology for example under the term “MagnetoPuls” from Magnet-Physik Dr. Steingroever GmbH, Cologne, Germany becomes.
  • Figure 1 schematically shows a glow plug in side view 1 made of electrically conductive ceramic, on the by means of Magnetic forming a support ring 2 is formed, the Material of the carrier ring 2 electrically conductive and by means of Magnetic forming technology is deformable.
  • a connecting pole 5 leads as a positive pole into the glow plug 1 in.
  • the arrangement of Figure 1 is in one Glow plug body 3 introduced, this being done in this way can that the press-in or insertion force for insertion the arrangement in the glow plug body 3 on the carrier ring 2 is brought into effect, so that the risk of buckling of glow plug 1 with connection pin 5 does not occur at all can, and also quite thin glow plugs 1, and as in the present case, made of material that is easier to damage, how ceramics can be used.
  • the glow plug body serves as a single pole 3 as ground or negative pole.
  • Glow plug body 3 is preferred on the carrier ring 2 molded using magnetic forming technology, as in described a little later in Figures 4 and 5 becomes.
  • FIG. 3 shows the arrangement of glow plug 1, carrier ring 4 and connection pole 5 of another glow plug shape according to the invention.
  • a glow plug 1 made of ceramic used into which an internal pole 5 projects on the connection side, and extended on the connection side with a contact sleeve 6 is.
  • the carrier ring 4 is indeed again from a material that uses magnetic forming technology is deformable; its surfaces, at least the ones facing outwards, however, are insulating, for example coated with an insulating ceramic layer, educated. Otherwise, the carrier ring 4 by means of magnetic forming technology applied to the glow plug 1; in the same The contact sleeve 6 is around the glow plug end region on the connection side formed.
  • the glow plug 1 can also consist of steel, and then using an applied ceramic layer is electrically insulated.
  • the contact sleeve 6 has the same outer diameter how the carrier ring 4 has, is its outward-facing Surface also formed isolated, for example provided with an insulating ceramic coating.
  • the outer diameter of the carrier ring is preferred 4 larger than the outer diameter of the contact sleeve 6, so that the body 3 does not contact the sleeve 6.
  • the carrier ring 4 preferably consists of a copper or Aluminum alloy, the ring 4 with an anodized layer or a layer of lacquer is insulated.
  • FIG. 3 The arrangement according to FIG. 3 is broken down into one according to FIG Introduced glow plug body 3; this is what happens here again preferably by means of magnetic forming technology, the Arrangement according to Figure 3 in the glow plug body 3 in the intended Position is positioned; in the area of the carrier ring 4 a transmission ring 7 is arranged around the body 3, via which the magnetic forming takes place.
  • the glow plug body 3 after removal the transmission ring 7 a cylindrical constriction 8, which over the inner carrier ring 4th with fixed connection of the arrangement of Figure 3 in the glow plug body 3 is formed.
  • the contact sleeve 6, which protruding from the glow plug body 3 is as a minus contact connection trained while the glow plug housing 3 floating is.
  • contact sleeve 6 and carrier and transmission ring 2, 4 or 7 made of copper, aluminum or light metal alloys.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Resistance Heating (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)

Abstract

The connection method has a cylindrical carrier ring (4) of an electrically-conductive material fitted to the rod-shaped heating element (1) via a magnetic forming technique, before attaching the tubular carrier element (3) to the carrier ring. An Independent claim for a glow plug with a rod-shaped heating element and a tubular housing is also included.

Description

Die Erfindung betrifft ein Verfahren zur Verbindung eines stabförmigen Heizelements mit einem rohrförmigen Trägerelement sowie Stabglühkerzen mit einem solchen stabförmigen Heizelement in einem rohrförmigen Glühkerzenkörper.The invention relates to a method for connection a rod-shaped heating element with a tubular support element and glow plugs with such a rod-shaped Heating element in a tubular glow plug body.

Es sind stabförmige Heizelemente bekannt, die in rohrförmigen Trägerelementen gelagert sind; eines der bekanntesten Beispiele sind Glühkerzen, bei denen ein stabförmiger Glühstift in einem rohrförmigen Glühkerzenkörper gelagert ist.Rod-shaped heating elements are known which are tubular Carrier elements are stored; one of the most famous Examples are glow plugs, in which a rod-shaped Glow plug stored in a tubular glow plug body is.

Zur Verbindung von Glühstift und Glühkerzenkörper wird beispielsweise der Glühstift in den Glühkerzenkörper eingepreßt; hierbei können nur solche Materialien verwendet werden, die genügend Verformbarkeit und Formfestigkeit für einen solchen Einpreßvorgang aufweisen.To connect the glow plug and glow plug body for example, the glow plug is pressed into the glow plug body; only materials can be used here the sufficient ductility and dimensional stability for have such a pressing process.

Beim Einpressen dürfen auch gewisse Bauteillängen, insbesondere des Glühstifts, nicht überschritten werden, um ein Einknicken dieses Bauteils während des Einpreßvorganges zu vermeiden.When pressing in, certain component lengths, especially the glow plug, not to be exceeded a buckling of this component during the press-in process to avoid.

Darüberhinaus können beim Einpressen Riefen entstehen, die zur Undichtigkeit zwischen Glühstift und Glühkerzenkörper führen.In addition, scoring can occur when pressing in, the leak between glow plug and glow plug body to lead.

Der Erfindung liegt die Aufgabe zugrunde, Verfahren zum Verbinden eines stabförmigen Heizelements mit einem rohrförmigen Trägerelement zur Verfügung zu stellen, bei dem das mit den geschilderten Nachteilen verbundene Einpressen des Heizelementes in das Trägerelement entbehrlich ist; gleichzeitig soll dieses Verfahren nicht von einer bestimmten Bauteillänge zur Vermeidung des Abknickens eines solchen Bauteils abhängig sein; insbesondere sollen aber auch keramische stabförmige Heizelemente mit metallischen Trägerelementen leicht verbunden werden können, wobei die geschilderte Riefenbildung nicht auftreten soll.The invention has for its object methods for Connecting a rod-shaped heating element with a tubular one To provide support element in which the with the disadvantages described pressing in Heating element in the carrier element is unnecessary; simultaneously this method is not intended to be of a particular Component length to avoid kinking Be dependent on the component; in particular, ceramic should also rod-shaped heating elements with metallic support elements can be easily connected, the described Streaking should not occur.

Erfindungsgemäß wird diese Aufgabe durch das Verfahren nach Anspruch 1 bzw. die Glühkerze nach Anspruch 5 gelöst; weitere vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den nachfolgenden Ansprüchen 2 bis 4 und 6 bis 8.According to the invention, this object is achieved by the method solved according to claim 1 or the glow plug according to claim 5; result in further advantageous embodiments of the invention result from the following claims 2 to 4 and 6 to 8.

Wesentliches erfindungsgemäßes Merkmal ist die Umformung des stabförmigen Heizelements mit einem Trägerring mittels Magnetumformtechnik, wobei diese Technik beispielsweise unter dem Begriff "MagnetoPuls" der Firma Magnet-Physik Dr. Steingroever GmbH, Köln, Deutschland, angeboten wird.Forming is an essential feature of the invention of the rod-shaped heating element with a carrier ring by means of magnetic forming technology, this technology for example under the term "MagnetoPuls" from Magnet-Physik Dr. Steingroever GmbH, Cologne, Germany becomes.

Die Erfindung wird am bevorzugten Beispiel einer Glühkerze mit stabförmigen Heizelement und rohrförmigen Trägerelement gemäß der folgenden Figuren näher erläutert; hierbei zeigen

  • Figur 1 in schematischer Ansicht einen Glühstift 1 mit einem zylinderförmigen Trägerring 2 und einem Anschlußpol 5;
  • Figur 2 den mit Trägerring 2 und Anschlußpol 5 versehenen Glühstift 1, eingebaut in ein Glühkerzengehäuse 3;
  • Figur 3 einen Glühstift 1 mit zylinderförmigem Trägerring 4 und Kontakthülse 6 sowie Anschlußpol 5;
  • Figur 4 den Glühstift 1 mit Trägerring 4, Kontakthülse 6 und Anschlußpol 5 gemäß Figur 3 in einem Glühkerzenkörper 3 mit außen anliegendem Übertragungsring 7; und
  • Figur 5 eine Ausführungsform einer erfindungsgemäßen Glühkerze nach Figuren 3 und 4 mit entferntem Übertragungsring 7 und der abdichtenden und fixierenden zylinderförmigen Einschnürung 8 des Glühkerzenkörpers 3.
    • The invention is explained in more detail using the preferred example of a glow plug with rod-shaped heating element and tubular support element according to the following figures; show here
  • Figure 1 is a schematic view of a glow plug 1 with a cylindrical support ring 2 and a connection pole 5;
  • 2 shows the glow plug 1 provided with carrier ring 2 and connection pole 5, installed in a glow plug housing 3;
  • Figure 3 shows a glow plug 1 with a cylindrical support ring 4 and contact sleeve 6 and terminal 5;
  • 4 shows the glow plug 1 with the carrier ring 4, contact sleeve 6 and connection pole 5 according to FIG. 3 in a glow plug body 3 with an external transmission ring 7; and
  • 5 shows an embodiment of a glow plug according to the invention according to FIGS. 3 and 4 with the transmission ring 7 removed and the sealing and fixing cylindrical constriction 8 of the glow plug body 3.

    • Figur 1 zeigt in Seitenansicht schematisch einen Glühstift 1 aus elektrisch leitender Keramik, auf den mittels Magnetumformtechnik ein Trägerring 2 geformt ist, wobei das Material des Trägerrings 2 elektrisch leitend und mittels Magnetumformtechnik verformbar ist. In ansich bekannter Weise führt ein Anschlußpol 5 als Plus-Pol in den Glühstift 1 hinein.Figure 1 schematically shows a glow plug in side view 1 made of electrically conductive ceramic, on the by means of Magnetic forming a support ring 2 is formed, the Material of the carrier ring 2 electrically conductive and by means of Magnetic forming technology is deformable. In a known way A connecting pole 5 leads as a positive pole into the glow plug 1 in.

    Gemäß Figur 2 wird die Anordnung gemäß Figur 1 in einen Glühkerzenkörper 3 eingebracht, wobei dieses derart erfolgen kann, daßdie Einpreß- oder Einbringkraft zur Einbringung der Anordnung in den Glühkerzenkörper 3 auf den Trägerring 2 zur Einwirkung gebracht wird, so daß die Gefahr des Einknikkens des Glühstiftes 1 mit Anschlußpol 5 gar nicht auftreten kann, und wobei auch recht dünne Glühstifte 1, und wie im vorliegenden Fall, aus leichter zu beschädigendem Material, wie Keramik verwendet werden können. Bei dieser Ausführungsform, die als einpolig bezeichnet wird, dient der Glühkerzenkörper 3 als Masse oder Minuspol.According to Figure 2, the arrangement of Figure 1 is in one Glow plug body 3 introduced, this being done in this way can that the press-in or insertion force for insertion the arrangement in the glow plug body 3 on the carrier ring 2 is brought into effect, so that the risk of buckling of glow plug 1 with connection pin 5 does not occur at all can, and also quite thin glow plugs 1, and as in the present case, made of material that is easier to damage, how ceramics can be used. In this embodiment, The glow plug body serves as a single pole 3 as ground or negative pole.

    Bevorzugt wird der Glühkerzenkörper 3 auf den Trägerring 2 mittels Magnetumformtechnik aufgeformt, wie es im einzelnen etwas später bei den Figuren 4 und 5 beschrieben wird.Glow plug body 3 is preferred on the carrier ring 2 molded using magnetic forming technology, as in described a little later in Figures 4 and 5 becomes.

    Es ist auch denkbar, bei dieser Ausführungsform anstelle eines Glühstifts aus Keramik einen solchen aus leitfähigem Metall zu verwenden, der aufgrund der erfindungsgemäßen Verfahrensweise nicht die Dicke und Stabilität üblicher Glühstift aufweisen muß; vielmehr erlaubt das erfindungsgemäße Verfahren die Herstellung und Verbindung von sehr dünnwandigen Glühstiften und Glühstiftgehäusen oder -körpern.It is also conceivable instead of this embodiment of a ceramic glow plug one of conductive To use metal due to the invention The procedure is not the thickness and stability more common Must have glow pencil; rather, the invention allows Process the manufacture and connection of very thin-walled glow plugs and glow plug housings or bodies.

    Figur 3 zeigt die Anordnung Glühstift 1, Trägerring 4 und Anschlußpol 5 einer anderen erfindungsgemäßen Glühkerzenform. Hierbei wird wiederum ein Glühstift 1 aus Keramik verwendet, in den anschlußseitig ein Innenpol 5 hineinragt, und der anschlußseitig mit einer Kontakthülse 6 verlängert ist.FIG. 3 shows the arrangement of glow plug 1, carrier ring 4 and connection pole 5 of another glow plug shape according to the invention. Here again, a glow plug 1 made of ceramic used, into which an internal pole 5 projects on the connection side, and extended on the connection side with a contact sleeve 6 is.

    Bei dieser Ausführungsform ist der Trägerring 4 zwar auch wieder aus einem Material, das mittels Magnetumformtechnik verformbar ist; seine Oberflächen, zumindest die, die nach außen weisen, sind jedoch isolierend, beispielsweise mit einer isolierenden Keramikschicht beschichtet, ausgebildet. Im übrigen ist der Trägerring 4 mittels Magnetumformtechnik auf den Glühstift 1 aufgebracht; in gleicher Weise ist die Kontakthülse 6 um den anschlußseitigen Glühstiftendbereich angeformt.In this embodiment, the carrier ring 4 is indeed again from a material that uses magnetic forming technology is deformable; its surfaces, at least the ones facing outwards, however, are insulating, for example coated with an insulating ceramic layer, educated. Otherwise, the carrier ring 4 by means of magnetic forming technology applied to the glow plug 1; in the same The contact sleeve 6 is around the glow plug end region on the connection side formed.

    Alternativ kann der Glühstift 1 auch aus Stahl bestehen, wobei er dann mittels aufgebrachter Keramikschicht elektrisch isoliert ist.Alternatively, the glow plug 1 can also consist of steel, and then using an applied ceramic layer is electrically insulated.

    Wenn die Kontakthülse 6 einen gleichen äußeren Durchmesser wie der Trägerring 4 aufweist, ist ihre nach außenweisende Oberfläche ebenfalls isoliert ausgebildet, beispielsweise mit einer isolierenden Keramikbeschichtung versehen. Bevorzugt jedoch ist der äußere Durchmesser des Trägerrings 4 größer als der äußere Durchmesser der Kontakthülse 6, so daß der Körper 3 die Hülse 6 nicht kontaktiert.If the contact sleeve 6 has the same outer diameter how the carrier ring 4 has, is its outward-facing Surface also formed isolated, for example provided with an insulating ceramic coating. However, the outer diameter of the carrier ring is preferred 4 larger than the outer diameter of the contact sleeve 6, so that the body 3 does not contact the sleeve 6.

    Bevorzugt besteht der Trägerring 4 aus einer Kupferoder Aluminiumlegierung, wobei der Ring 4 mit einer Eloxalschicht oder einer Lackschicht isoliert ist.The carrier ring 4 preferably consists of a copper or Aluminum alloy, the ring 4 with an anodized layer or a layer of lacquer is insulated.

    Die Anordnung gemäß Figur 3 wird gemäß Figur 4 in einen Glühkerzenkörper 3 eingebracht; hierbei geschieht dieses wiederum bevorzugt mittels Magnetumformtechnik, wobei die Anordnung gemäß Figur 3 im Glühkerzenkörper 3 in der vorgesehenen Stellung positioniert wird; im Bereich des Trägerrings 4 wird um den Körper 3 ein Übertragungsring 7 angeordnet, über den das Magnetumformen erfolgt.The arrangement according to FIG. 3 is broken down into one according to FIG Introduced glow plug body 3; this is what happens here again preferably by means of magnetic forming technology, the Arrangement according to Figure 3 in the glow plug body 3 in the intended Position is positioned; in the area of the carrier ring 4 a transmission ring 7 is arranged around the body 3, via which the magnetic forming takes place.

    Gemäß Figur 5 weist der Glühkerzenkörper 3 nach Entfernung des Übertragungsringes 7 eine zylinderförmige Einschnürung 8 auf, die über dem innenliegenden Trägerring 4 unter fester Verbindung der Anordnung aus Figur 3 im Glühkerzenkörper 3 ausgebildet ist. Die Kontakthülse 6, die aus dem Glühkerzenkörper 3 herausragt, ist als Minus-Kontaktanschluß ausgebildet, während das Glühkerzengehäuse 3 potentialfrei ist.According to Figure 5, the glow plug body 3 after removal the transmission ring 7 a cylindrical constriction 8, which over the inner carrier ring 4th with fixed connection of the arrangement of Figure 3 in the glow plug body 3 is formed. The contact sleeve 6, which protruding from the glow plug body 3 is as a minus contact connection trained while the glow plug housing 3 floating is.

    Bevorzugt bestehen Kontakthülse 6 und Träger- und Übertragungsring 2, 4 bzw. 7 aus Kupfer, Aluminium oder Leichtmetall-Legierungen.There are preferably contact sleeve 6 and carrier and transmission ring 2, 4 or 7 made of copper, aluminum or light metal alloys.

    Claims (8)

    Verfahren zur Verbindung eines stabförmigen Heizelements mit einem rohrförmigen Trägerelement, dadurch gekennzeichnet, daß man auf dem stabförmigen Heizelement (1) einen zylinderförmigen Trägerring (2) bzw. (4) mittels Magnetumformtechnik aufbringt, und daß man das rohrförmige Trägerelement (3) auf dem Trägerring (2) aufliegend fixiert.Method for connecting a rod-shaped heating element to a tubular carrier element, characterized in that a cylindrical carrier ring (2) or (4) is applied to the rod-shaped heating element (1) by means of magnetic forming technology, and in that the tubular carrier element (3) is applied to the carrier ring (2) fixed on top. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man einen Trägerring (2) aus elektrisch leitendem Material, das mittels Magnetumformtechnik verformbar ist, auf das stabförmige Heizelement (1) aus elektrisch leitender Keramik aufbringt, wobei das rohrförmige Trägerelement (3) aus elektrisch leitendem Material besteht.Method according to Claim 1, characterized in that a carrier ring (2) made of electrically conductive material, which can be deformed by means of magnetic forming technology, is applied to the rod-shaped heating element (1) made of electrically conductive ceramic, the tubular carrier element (3) made of electrically conductive material consists. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß man das rohrförmige Trägerelement (3) im Bereich des Trägerringes (2) mit einem äußeren Übertragungsring (7) umgibt, und daß man mittels Magnetumformtechnik den Trägerring (2) im genannten Bereich mit dem rohrförmigen Trägerelement (3) umformt und anschließend den Übertragungsring (7) entfernt.Method according to Claim 1 or 2, characterized in that the tubular carrier element (3) is surrounded in the region of the carrier ring (2) by an outer transmission ring (7), and in that the carrier ring (2) is magnetically formed using the tubular region Formed carrier element (3) and then removed the transmission ring (7). Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß man einen Trägerring (4) verwendet, dessen Oberflächen isoliert, beispielsweise mit einer isolierenden Beschichtung versehen, ausgebildet sind, und daß man, bevorzugt ebenfalls mittels Magnetumformtechnik, das stabförmige Heizelement (1) aus elektrisch leitender Keramik anschlußseitig mit einer Kontakthülse (6) aus leitfähigem Material umformt, wobei der äußere Durchmesser des isolierten Trägerrings (4) größer als der der Kontakthülse (6) ist. A method according to claim 1, characterized in that a carrier ring (4) is used, the surfaces of which are insulated, for example provided with an insulating coating, and that the rod-shaped heating element (1) is made of electrically conductive ceramic, preferably also by means of magnetic forming technology Formed on the connection side with a contact sleeve (6) made of conductive material, the outer diameter of the insulated carrier ring (4) being larger than that of the contact sleeve (6). Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß man das rohrförmige Trägerelement (3) im Bereich des Trägerringes (2) mit einem äußeren Übertragungsring (7) umgibt, und daß man mittels Magnetumformtechnik den Trägerring (2) im genannten Bereich mit dem rohrförmigen Trägerelement (3) umformt und anschließend den Übertragungsring (7) entfernt.Method according to Claim 4, characterized in that the tubular carrier element (3) is surrounded in the region of the carrier ring (2) by an outer transmission ring (7), and in that the carrier ring (2) is magnetically formed with the tubular carrier element (2) 3) and then removed the transmission ring (7). Glühkerze mit einem stabförmigen Heizelement und einem rohrförmigen Gehäuse, dadurch gekennzeichnet, daß auf einen Glühstift (1) aus leitfähiger Keramik mittels Magnetumformtechnik ein elektrisch leitender Trägerring (2) aufgebracht ist, auf dem das Glühkerzengehäuse (3) gelagert ist.Glow plug with a rod-shaped heating element and a tubular housing, characterized in that an electrically conductive carrier ring (2) on which the glow plug housing (3) is mounted is applied to a glow plug (1) made of conductive ceramic by means of magnetic forming technology. Glühkerze nach Anspruch 6, dadurch gekennzeichnet, daß der Trägerring (2) mit dem Gehäuse (3) mittels Magnetumformtechnik umformt ist.Glow plug according to claim 6, characterized in that the carrier ring (2) with the housing (3) is formed by means of magnetic forming technology. Glühkerze mit einem stabförmigen Heizelement (1) und einem rohrförmigen Gehäuse (3), dadurch gekennzeichnet, daß ein Glühstift (1) aus elektrisch leitender Keramik mittels einer Kontakthülse (6) aus leitfähigem Material in anschlußseitiger Richtung verlängert ist, wobei die Kontakthülse (6) bevorzugt mittels Magnetumformtechnik mit dem anschlußseitigen Endbereich des Glühstiftes (1) verbunden ist; mit einem zylinderförmigen Trägerring (4), der aus einem Material besteht, daß mittels Magnetumformtechnik verformbar ist, und dessen Oberflächen elektrisch isoliert ausgebildet sind, wobei der äußere Durchmesser des Trägerrings (4) größer als der der Kontakthülse (6) ist, und wobei der Trägerring (4) mittels Magnetumformtechnik um den Keramikglühstift (1) geformt ist; und wobei das Gehäuse (3) auf dem Trägerring (4) aufliegt und die Kontakthülse (6) kontaktfrei oder gegenüber dieser isoliert umgibt, wobei bevorzugt die Umformung des Trägerrings (4) mit dem Gehäuse (3) mittels Magnetumformtechnik erfolgt ist.Glow plug with a rod-shaped heating element (1) and a tubular housing (3), characterized in that a glow plug (1) made of electrically conductive ceramic is extended in the connection-side direction by means of a contact sleeve (6) made of conductive material, the contact sleeve (6) is preferably connected to the connection-side end region of the glow plug (1) by means of magnetic forming technology; with a cylindrical support ring (4), which consists of a material that is deformable by means of magnetic forming technology, and the surfaces of which are electrically insulated, the outer diameter of the support ring (4) being larger than that of the contact sleeve (6), and wherein the Carrier ring (4) is formed around the ceramic glow pencil (1) by means of magnetic forming technology; and wherein the housing (3) rests on the carrier ring (4) and surrounds the contact sleeve (6) in a contact-free manner or in an insulated manner, preferably the carrier ring (4) with the housing (3) is deformed by means of magnetic forming technology.
    EP02013626A 2001-07-30 2002-06-19 Method for connecting a rod-shaped heating body with a tubular support and glow plug obtained by this method Expired - Lifetime EP1281915B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE10136596 2001-07-30
    DE10136596A DE10136596B4 (en) 2001-07-30 2001-07-30 A method for connecting a rod-shaped heating element with a tubular housing of a glow plug and glow plug produced by this method

    Publications (2)

    Publication Number Publication Date
    EP1281915A1 true EP1281915A1 (en) 2003-02-05
    EP1281915B1 EP1281915B1 (en) 2005-01-12

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP02013626A Expired - Lifetime EP1281915B1 (en) 2001-07-30 2002-06-19 Method for connecting a rod-shaped heating body with a tubular support and glow plug obtained by this method

    Country Status (7)

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    US (2) US6734400B2 (en)
    EP (1) EP1281915B1 (en)
    JP (1) JP4515693B2 (en)
    KR (1) KR100770789B1 (en)
    AT (1) ATE287067T1 (en)
    DE (2) DE10136596B4 (en)
    ES (1) ES2231614T3 (en)

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    KR200467518Y1 (en) * 2012-03-30 2013-06-21 주식회사 거동기업 Protector for Hot to Cold Section of MI Heating Cable
    EP2891380A1 (en) 2012-08-30 2015-07-08 Quantum Technology Group (Singapore) PTE Ltd. Electrical heating element

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    Also Published As

    Publication number Publication date
    KR100770789B1 (en) 2007-10-26
    DE10136596A1 (en) 2003-02-27
    ATE287067T1 (en) 2005-01-15
    EP1281915B1 (en) 2005-01-12
    DE50201983D1 (en) 2005-02-17
    JP4515693B2 (en) 2010-08-04
    US6734400B2 (en) 2004-05-11
    US20040173596A1 (en) 2004-09-09
    DE10136596B4 (en) 2005-09-15
    KR20030011624A (en) 2003-02-11
    JP2003145229A (en) 2003-05-20
    US20030034339A1 (en) 2003-02-20
    ES2231614T3 (en) 2005-05-16
    US7335857B2 (en) 2008-02-26

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