EP0126734A1 - Ignition coal for ignition devices of internal combustion engines. - Google Patents

Ignition coal for ignition devices of internal combustion engines.

Info

Publication number
EP0126734A1
EP0126734A1 EP83903378A EP83903378A EP0126734A1 EP 0126734 A1 EP0126734 A1 EP 0126734A1 EP 83903378 A EP83903378 A EP 83903378A EP 83903378 A EP83903378 A EP 83903378A EP 0126734 A1 EP0126734 A1 EP 0126734A1
Authority
EP
European Patent Office
Prior art keywords
coil
ignition
housing
chamber
winding
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
EP83903378A
Other languages
German (de)
French (fr)
Other versions
EP0126734B1 (en
Inventor
Paul Worz
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP0126734A1 publication Critical patent/EP0126734A1/en
Application granted granted Critical
Publication of EP0126734B1 publication Critical patent/EP0126734B1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/12—Ignition, e.g. for IC engines
    • 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
    • Y10T29/4902—Electromagnet, transformer or inductor
    • Y10T29/49073—Electromagnet, transformer or inductor by assembling coil and core

Definitions

  • Ignition coil for ignition systems of internal combustion engines Ignition coil for ignition systems of internal combustion engines
  • the invention relates to an ignition coil for ignition systems of internal combustion engines according to the preamble of the main claim.
  • the insulating distance between the secondary winding carrying the high voltage and regions of the ignition coil with a lower potential is measured according to the highest voltage between two potentials; this is known to be in the area of the high voltage output of the secondary winding.
  • the invention is based on the idea of providing the insulation spacing of the individual chamber of the secondary winding only as large as the respective voltage between the chamber potential and the smaller potential of the adjacent area of the ignition coil.
  • the area of the insertion opening which is formed by the end face of the coil form of the primary winding and the bottom of the housing, must be perfectly sealed when the ignition coil is cast - this takes place without the iron core.
  • FIG. 1 shows the axial section of an ignition coil for ignition systems of internal combustion engines; and FIG. 2 in sections and partially cut the housing base after the ignition coil has been cast.
  • FIG. 1 The only figure of an ignition system for internal combustion engines shows an ignition coil with a lamellar iron core 10 which is arranged coaxially to the axis 11 of the ignition coil and a coil former 12 coaxial with the iron core 10 with a primary winding 13. Also coaxial with this is a coil former 14 in a chamber configuration with a secondary winding 15.
  • a pot-shaped, essentially hollow cylindrical housing 16 made of plastic has an insertion opening 17 in the bottom for fastening the coil former 12 with the primary winding 13 and the iron core 10.
  • the coil former 12 widens in its edge region 18 to a receptacle for a dome 19 with one therein molded contact sleeve 20 for the secondary connection of the ignition coil and receives two primary connection bolts 21 (only one of which is visible) for the connection to the battery or to the distributor or switchgear.
  • the first end section 24 of the primary winding 13 makes contact with the one connecting pin 21.
  • the second end section 24 'of the primary winding and the second end section 23' of the secondary winding 15 are fixed to a connecting part 22 'which makes contact with the other connecting pin, not shown.
  • the first end section 23 of the secondary winding 15 makes contact with the contact sleeve 20 via a connecting part 22.
  • the bobbin 14 in chamber design has a frustoconical, outwardly widening inner wall section 25, an approximately cylindrical inner wall section 25 'and forms, for example, eight annular chambers 26, which form seven inner annular webs 27 and two outer annular webs 28, 28'.
  • the axial cross section of each ring web is trapezoidal, and the narrow sides of the trapezoid partially form the outer boundary of the coil former 14.
  • the radial expansion, ie the height of each chamber winding 29 of the secondary winding 15 increases Chamber potential according to the law of the geometric series, and the individual chamber windings 29 are arranged such that the insulating distance between the secondary winding 15 and areas of the ignition coil, which carry a smaller potential, becomes larger with an increasingly higher chamber potential.
  • the insulation distance 30, 30 'of the chamber winding with the highest chamber potential to the primary winding 13 or to the outside of the housing 16 is greater than the insulation distance 31, 31' of the chamber winding with the smallest corresponding chamber potential.
  • the elements of the ignition coil are fastened in an insulating manner in the housing 16 by a casting compound 32, which is shown hatched only in the edge area.
  • the gradation of the chamber windings 29 in their height and cross-sectional area does not have to correspond exclusively to the geometrical series, but can also take place in terms of manufacturing technology and strength.
  • the bottom 36 of the housing 16 of the ignition coil has an inwardly curved opening edge 33, to which a hat-shaped cover 41 connects in one piece via a predetermined breaking point 35.
  • a hat-shaped cover 40 is formed on the end face of the coil body 12 via a predetermined breaking point 34, which cover is inserted into the cover 41 when the coil 12 and the housing 16 are axially joined.
  • both covers 40, 41 are separated at the predetermined breaking point 34, 35 by a tool.
  • the iron core (FIG. 1) is then inserted into the insertion opening 17 in such a way that the end section of the iron core 10 projects partially over the bottom 36 of the housing 10.
  • the housing 16 and the bobbin 12 are made of the thermoplastic polybutylene reinforced with glass fiber.

Abstract

L'enroulement secondaire (15) et le corps de bobine (14) qui le porte sont manufacturés en forme de chambres; l'expansion (hauteur) radiale de chaque enroulement de chambre (29) décroît au fur et à mesure qu'augmente le potentiel de chambre selon la loi des séries géométriques, de façon que l'intervalle d'isolation (30, 31) entre l'enroulement secondaire (15) et les zones de la bobine d'allumage, qui induisent un potentiel inférieur, grandisse au fur et à mesure de l'accroissement du potentiel de chambre. Cela permet de réduire le volume et le poids de la bobine d'allumage pour une puissance électrique similaire.The secondary winding (15) and the coil body (14) which carries it are manufactured in the form of chambers; the radial expansion (height) of each chamber winding (29) decreases as the chamber potential increases according to the law of geometric series, so that the insulation interval (30, 31) between the secondary winding (15) and the areas of the ignition coil, which induce a lower potential, grow as the chamber potential increases. This reduces the volume and weight of the ignition coil for similar electrical power.

Description

Zündspule für Zündanlagen von Brennkraftmaschinen Ignition coil for ignition systems of internal combustion engines
Stand der TechnikState of the art
Die Erfindung betrifft eine Zündspule für Zündanlagen von Brennkraftmaschinen nach der Gattung des Hauptanspruchs. Bei derartigen Zündspulen bemißt sich der Isolierabstand zwischen der die Hochspannung führenden Sekundärwicklung und Bereichen der Zündspule mit einem niedrigeren Potential nach der höchsten Spannung zwischen zwei Potentialen; dies ist bekanntlich im Bereich des Hochspannungsausgangs der Sekundärwicklung.The invention relates to an ignition coil for ignition systems of internal combustion engines according to the preamble of the main claim. In the case of such ignition coils, the insulating distance between the secondary winding carrying the high voltage and regions of the ignition coil with a lower potential is measured according to the highest voltage between two potentials; this is known to be in the area of the high voltage output of the secondary winding.
Die Koaxialität der Sekundärwicklung zur hohlzylinderförmigen Primärwicklung bedingt zwangsläufig, daß der Isolierabstand über die gesamte Länge der Sekundärwicklung besteht, und mithin dieser Abstand ist im Bereich der ersten Kammer der Sekundärwicklung überdimensioniert, wodurch eine größere Gießharzmenge benötigt wird und das Gewicht der Zündspule sich unnötigerweise erhöht. Vorteile der ErfindungThe coaxiality of the secondary winding to the hollow cylindrical primary winding inevitably means that the insulation distance exists over the entire length of the secondary winding, and consequently this distance is oversized in the area of the first chamber of the secondary winding, as a result of which a larger quantity of cast resin is required and the weight of the ignition coil increases unnecessarily. Advantages of the invention
Mit der Zündspule für Zündanlagen von Brennkraftmaschinen nach der Erfindung wird bei gleicher Leistung der Zündspule deren Abmessungen und Gewicht verringert. Der Erfindung liegt der Gedanke zugrunde, den Isolierabstand der einzelnen Kammer der Sekundärwicklung nur so groß vorzusehen, wie die jeweilige Spannung zwischen dem Kammerpotential und dam kleineren Potential des Uachbarbereichs der Zündspule entspricht.With the ignition coil for ignition systems of internal combustion engines according to the invention, the dimensions and weight of the ignition coil are reduced with the same output. The invention is based on the idea of providing the insulation spacing of the individual chamber of the secondary winding only as large as the respective voltage between the chamber potential and the smaller potential of the adjacent area of the ignition coil.
Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben. Mit der Ausgestaltung der Zündspule nach Anspruch 2 wird die Anwendung der Erfindung an einer bekannten Ausführung einer Zündspule aufgezeigt. Die Ausgestaltung der Zündspule nach Anspruch 3 ergibt den hinsichtlich Isolierabstand günstigsten Stufensprung zwischen zwei benachbarten Kammern. Mit der. Ausgestaltung der Zündspule nach Anspruch 4 erreicht man eine sichere Lage der einzelnen Wicklungen in der Kammer und günstige Widerstandswerte der Stege gegen Biegung.Advantageous developments of the invention are described in the subclaims. With the design of the ignition coil according to claim 2, the application of the invention to a known version of an ignition coil is shown. The design of the ignition coil according to claim 3 results in the cheapest step jump in terms of insulation between two adjacent chambers. With the. Embodiment of the ignition coil according to claim 4, a secure position of the individual windings in the chamber and favorable resistance values of the webs against bending are achieved.
Der Bereich der Einstecköffnung, den die Stirnseite des Spulenkörpers der Primärwicklung und der Boden des Gehäuses bilden, muß beim Vergießen der Zündspule - das ohne den Eisenkern erfolgt - einwandfrei dicht sein. Um diese Dichtheit zu erreichen ist es bereits bekannt , eine Hülse an der Stirnseite des Spulenkörpers und am Gehäuseboden anzuformen und diese mit Festsitz zusammenzufügen.The area of the insertion opening, which is formed by the end face of the coil form of the primary winding and the bottom of the housing, must be perfectly sealed when the ignition coil is cast - this takes place without the iron core. In order to achieve this tightness, it is already known to form a sleeve on the end face of the coil body and on the housing base and to join them with a tight fit.
Weiterhin bekannt ist es, je eine nach außen abstehende Kappe an der Stirnseite des Spulenkörpers und am Gehäuseboden einstückig anzuordnen, danach beide Kappen mit Preßsitz zusammenzufügen und dann diese Kappen in Abstand vom Gehäuseboden abzutrennen. Weiterhin bekannt ist es noch, vom Gehäuseboden eine nach innenweisende Hülse abstehen zu lassen, die den Eisenkern vom Spulenkörper distanziert. Alle diese vorbekannten Abdichtungen sind fertigungstechnisch aufwendig .It is also known to arrange an outwardly projecting cap in one piece on the end face of the coil body and on the housing base, then both caps with Put the press fit together and then separate these caps at a distance from the housing base. It is also known to have an inward-pointing sleeve protrude from the housing base, which sleeve distances the iron core from the coil body. All of these known seals are expensive to manufacture.
Mit der Weiterbildung der Zündspule nach Anspruch 5 wird die erforderliche Dichtheit im Bereich der Einstecköffnung mit geringem technischem Aufwand erreicht. Dadurch, daß das Vergießen der Zündspule vor dem Entfernen beider Deckel erfolgt, bilden beide Sollbruchstellen die erforderliche Abdichtung und erst nach dem Erkalten der Vergußmasse werden beide Böden abgetrennt und der Eisenkern eingeschoben.With the development of the ignition coil according to claim 5, the required tightness in the region of the insertion opening is achieved with little technical effort. Because the ignition coil is potted before both covers are removed, both predetermined breaking points form the required seal and only after the potting compound has cooled down are both bases separated and the iron core inserted.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und in der Figurenbeschreibung näher erläutert. Es zeigen jeweils in vergrößerter Darstellung Figur 1 den Axialschnitt einer Zündspule für Zündanlagen von Brennkraftmaschinen; und Figur 2 abschnittsweise und teilweise geschnitten den Gehäus.eboden nach dem Vergießen der Zündspule.An embodiment of the invention is shown in the drawing and explained in more detail in the description of the figures. 1 shows the axial section of an ignition coil for ignition systems of internal combustion engines; and FIG. 2 in sections and partially cut the housing base after the ignition coil has been cast.
Beschreibung des AusführungsbeispielesDescription of the embodiment
Von einer Zündanlage für Brennkraftmaschinen zeigt die einzige Figur eine Zündspule mit einem lammelierten Eisenkern 10, der koaxial zur Achse 11 der Zündspule angeordnet ist, und einen zum Eisenkern 10 koaxialen Spulenkörper 12 mit einer Primärwicklung 13. Ebenfalls dazu koaxial ist ein Spulenkörper 14 in Kammerausführung mit einer Sekundärwicklung 15 angeordnet.The only figure of an ignition system for internal combustion engines shows an ignition coil with a lamellar iron core 10 which is arranged coaxially to the axis 11 of the ignition coil and a coil former 12 coaxial with the iron core 10 with a primary winding 13. Also coaxial with this is a coil former 14 in a chamber configuration with a secondary winding 15.
Ein topfförmiges, im wesentlichen hohlzylinderförmiges Gehäuse 16 aus Kunststoff hat im Boden eine Einstecköffnung 17 für die Befestigung des Spulenkörpers 12 mit der Primärwicklung 13 und dem Eisenkern 10. Der Spulenkörper 12 erweitert sich in seinem Randbereich 18 zu einer Aufnahme für einen Dom 19 mit einer darin eingeformten Kontakthülse 20 für den Sekundäranschluß der Zündspule und nimmt zwei Primäranschlußbolzen 21 auf (von denen nur der eine sichtbar ist) für die Verbindung zur Batterie b.zw. zum Zündverteiler oder Schaltgerät. Der erste Sndabschnitt 24 der Primärwicklung 13 kontaktiert mit dem einen Anschlußbolzen 21. Der zweite Endabschnitt 24' der Primärwicklung und der zweite Endabschnitt 23' der Sekundärwicklung 15 sind an einem Anschlußteil 22' festgelegt, das mit dem anderen, nicht dargestellten Anschlußbolzen kontaktiert. Der erste Endabschnitt 23 der Sekundärwicklung 15 kontaktiert über ein Anschlußteil 22 mit der Kontakthülse 20.A pot-shaped, essentially hollow cylindrical housing 16 made of plastic has an insertion opening 17 in the bottom for fastening the coil former 12 with the primary winding 13 and the iron core 10. The coil former 12 widens in its edge region 18 to a receptacle for a dome 19 with one therein molded contact sleeve 20 for the secondary connection of the ignition coil and receives two primary connection bolts 21 (only one of which is visible) for the connection to the battery or to the distributor or switchgear. The first end section 24 of the primary winding 13 makes contact with the one connecting pin 21. The second end section 24 'of the primary winding and the second end section 23' of the secondary winding 15 are fixed to a connecting part 22 'which makes contact with the other connecting pin, not shown. The first end section 23 of the secondary winding 15 makes contact with the contact sleeve 20 via a connecting part 22.
Der Spulenkörper 14 in Kammerausführung hat einen kegelstumpfförmigen, nach außen sich erweiterden Innenwandabschnitt 25 , einen annähernd zylindrischen Innenwandabschnitt 25' und bildet z.B. acht Ringkammern 26, die sieben innere Ringstege 27 und zwei äußere Ringstege 28, 28' bilden. Der axiale Querschnitt eines jeden Ringsteges ist trapezförmig, und die Schmalseiten des Trapezes bilden teilweise die äußere Begrenzung des Spulenkörpers 14. Die radiale Ausdehnung, d.h. die Höhe einer jeden Kammerwicklung 29 der Sekundärwicklung 15 nimmt zum höheren Kammerpotential hin nach dem Gesetz der geometrischen Reihe ab, und die einzelnen Kammerwicklungen 29 sind derart angeordnet, daß der Isolierabstand zwischen der Sekundärwicklung 15 und Bereichen der Zündspule, die ein kleineres Potential führen, mit zunehmend höherem Kammerpotential größer wird. So ist der Isolierabstand 30, 30' der Kammerwicklung mit höchstem Kammerpotential zur Primärwicklung 13 bzw. zur Außenseite des Gehäuses 16 größer als der Isolierabstand 31, 31' der Kammerwicklung mit dem kleinsten entsprechenden Kammerpotential. Die Elemente der Zündspule sind im Gehäuse 16 durch eine nur im Randbereich schraffiert dargestellte Vergußmasse 32 isolierend befestigt.The bobbin 14 in chamber design has a frustoconical, outwardly widening inner wall section 25, an approximately cylindrical inner wall section 25 'and forms, for example, eight annular chambers 26, which form seven inner annular webs 27 and two outer annular webs 28, 28'. The axial cross section of each ring web is trapezoidal, and the narrow sides of the trapezoid partially form the outer boundary of the coil former 14. The radial expansion, ie the height of each chamber winding 29 of the secondary winding 15 increases Chamber potential according to the law of the geometric series, and the individual chamber windings 29 are arranged such that the insulating distance between the secondary winding 15 and areas of the ignition coil, which carry a smaller potential, becomes larger with an increasingly higher chamber potential. Thus, the insulation distance 30, 30 'of the chamber winding with the highest chamber potential to the primary winding 13 or to the outside of the housing 16 is greater than the insulation distance 31, 31' of the chamber winding with the smallest corresponding chamber potential. The elements of the ignition coil are fastened in an insulating manner in the housing 16 by a casting compound 32, which is shown hatched only in the edge area.
Die Abstufung der Kammerwicklungen 29 in ihrer Höhe und Querschnittsfläche muß nicht ausschließlich der geometrisc Reihe entsprechen, sondern kann auch nach fertigungstechnischen und festigkeitsmäßigen Gesichtspunkten erfolgen.The gradation of the chamber windings 29 in their height and cross-sectional area does not have to correspond exclusively to the geometrical series, but can also take place in terms of manufacturing technology and strength.
Der Boden 36 des Gehäuses 16 der Zündspule weist einen nach innen gewölbten Öffnungsrand 33 auf, an den sich über eine Sollbruchstelle 35 ein hutförmiger Deckel 41 einstückig anschließt. Ebenso ist an der Stirnseite des Spulenkörpers 12 über ein Sollbruchstelle 34 ein hutförmiger Deckel 40 angeformt, der beim axialen Zusammenfügen von Spule 12 und Gehäuse 16 in den Deckel 41 eingesteckt wird.The bottom 36 of the housing 16 of the ignition coil has an inwardly curved opening edge 33, to which a hat-shaped cover 41 connects in one piece via a predetermined breaking point 35. Likewise, a hat-shaped cover 40 is formed on the end face of the coil body 12 via a predetermined breaking point 34, which cover is inserted into the cover 41 when the coil 12 and the housing 16 are axially joined.
Danach wird die Zündspule mit Vergußmasse 32 vergessen und nach deren Erkalten werden beiden Deckel 40 , 41 an der Sollbruchstelle 34, 35 durch ein Werkzeug abgetrennt. Anschließend wird der Eisenkern (Figur 1) in die Einstecköffnung 17 derart eingeschoben, daß der Endabschnitt des Eisenkerns 10 teilweise über den Boden 36 des Gehäuses 10 ragt. Das Gehäuse 16 und der Spulenkörper 12 sind aus dem thermoplastischen Kunststoff Polybutylen mit Glasfaser verstärkt hergestellt. Then the ignition coil with potting compound 32 is forgotten and after it has cooled, both covers 40, 41 are separated at the predetermined breaking point 34, 35 by a tool. The iron core (FIG. 1) is then inserted into the insertion opening 17 in such a way that the end section of the iron core 10 projects partially over the bottom 36 of the housing 10. The housing 16 and the bobbin 12 are made of the thermoplastic polybutylene reinforced with glass fiber.

Claims

Ans prücheExpectations
1. Zündspule für Zündanlagen von Brennkraftmaschinen mit einer Primärwicklung und mit einer dazu koaxialen Sekundärwicklung in Kammerausführung, dadurch gekennzeichnet, daß der isolierabstand (30, 30'; 31, 31') zwischen der Sekundärwicklung (15) und Bereichen der Zündspule, die ein kleineres Potential führen, mit zunehmend höherem Kammerpotential größer wird.1. Ignition coil for ignition systems of internal combustion engines with a primary winding and with a coaxial secondary winding in chamber design, characterized in that the insulating distance (30, 30 '; 31, 31') between the secondary winding (15) and areas of the ignition coil which are smaller Lead potential, becomes larger with increasingly higher chamber potential.
2. Spule mit einem topfförmigen Gehäuse, einem darin konzentrischen Eisenkern und einem die Primärspule tragenden Spulenkörper nach Anspruch 1, dadurch gekennzeichnet, daß ein Spulenkörper ( 14 ) in Kammerausführung die Sekundärwicklung (15) trägt und zwischen der Primärwicklung (13) und der Wandung des Gehäuses (16) angeordnet ist.2. Coil with a pot-shaped housing, an iron core concentric therein and a bobbin carrying the primary coil according to claim 1, characterized in that a bobbin (14) in chamber design carries the secondary winding (15) and between the primary winding (13) and the wall of the Housing (16) is arranged.
3. Spule nach Anspruch 2, dadurch gekennzeichnet, daß die radiale Ausdehnung (Höhe) einer jeden Kammerwicklung (29) der Sekundärwicklung (15) zum höheren Kammerpotential nach dem Gesetz der geometrischen Reihe abnimmt. k . Spule nach Anspruch 2 oder 3, bei der je ein Ringsteg des Spulenkörpers zwei benachbarte Kammerwicklungen der Sekundärspule trennt, dadurch gekennzeichnet, daß der radiale Querschnitt eines jeden Ringsteges ( 27 , 28) trapezförmig ist und daß die Schmalseite der Trapeze teilweise die äußere Begrenzung des Spulenkörpers ( 1 k ) bilden.3. Coil according to claim 2, characterized in that the radial extent (height) of each chamber winding (29) of the secondary winding (15) decreases to the higher chamber potential according to the law of the geometric series. k. Coil according to claim 2 or 3, in which one ring web of the coil body separates two adjacent chamber windings of the secondary coil, characterized in that the radial cross section of each ring web (27, 28) is trapezoidal and in that the narrow side of the trapezoids partially the outer boundary of the coil body (1 k) form.
5. Zündspule für Zündanlagen von Brennkraftmaschinen mit einem topfförmigen Gehäuse und einer Ξins-ceckδffnung im Gehäuseboden sowie mit einem eine Wicklung tragenden, hülsenförmigen Spulenkörper, dessen eine ringförmige Stirnseite am Öffnungsrand des Gehäusebodens anliegt, gekennzeichnet durch a) die Einstecköffnung (17) ia Boden (36) des Gehäuses (16) und die Stirnseite des Spulenkörpers (12) verschließt je ein Deckel ( 41 , 40), b) nach dem Vergießen der Zündspule mit Vergußmasse (32) werden beide Deckel ( 40 , 41 ) entfernt und danach wird ein Eisenkern (10) in die Einstecköffnung (17) geschoben.5. Ignition coil for ignition systems of internal combustion engines with a pot-shaped housing and an Ξins-ceckδffnung in the housing base and with a sleeve-shaped coil body carrying a winding, the ring-shaped end face of which rests against the opening edge of the housing base, characterized by a) the insertion opening (17) ia bottom ( 36) of the housing (16) and the end face of the coil body (12) each closes a cover (41, 40), b) after the ignition coil has been cast with casting compound (32), both covers (40, 41) are removed and then one Push the iron core (10) into the insertion opening (17).
6. Spule nach Anspruch 5, dadurch gekennzeichnet, daß der Deckel ( 40 ) des Spulenkörpers (12) sich im Deckel (31) des Bodens (36) des Gehäuses (16) zentriert.6. Coil according to claim 5, characterized in that the cover (40) of the coil body (12) is centered in the cover (31) of the bottom (36) of the housing (16).
7. Spule nach Anspruch 6, dadurch gekennzeichnet, daß die beiden Deckel ( 40 , 41 ) nach Art eines Hutes augebildet und ineinander gesteckt sind. 7. Coil according to claim 6, characterized in that the two covers (40, 41) are formed like a hat and inserted into one another.
8. Spule nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, daß der äußere Rand beider Deckel ( 40 , 41 ) als Sollbruchstelle ( 34 , 35) ausgebildet ist, so daß die Deckel ( 40 , 41) an dieser vorbestimmten Stelle von der Stirnseite des Spulenkörpers (12) bzw. vom Öffnungsrand (33) des Bodens (36) gemäß Merkmal 5b) abtrennbar sind.8. Coil according to one of claims 5 to 7, characterized in that the outer edge of both covers (40, 41) is designed as a predetermined breaking point (34, 35), so that the cover (40, 41) at this predetermined point of the Front side of the coil body (12) or from the opening edge (33) of the bottom (36) according to feature 5b) can be separated.
9. Spule nach einem der Ansprüche 5 bis 8, dadurch gekennzeichnet, daß das Gehäuse (16) und der Spulenkörper (12) aus thermoplastischem Kunststoff, insbesondere aus Polybutylen mit Glasfaser, besteht. 9. Coil according to one of claims 5 to 8, characterized in that the housing (16) and the coil body (12) made of thermoplastic material, in particular of polybutylene with glass fiber.
EP83903378A 1982-11-26 1983-11-04 Ignition coal for ignition devices of internal combustion engines Expired EP0126734B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3243806 1982-11-26
DE3243806 1982-11-26
DE3301224A DE3301224A1 (en) 1982-11-26 1983-01-15 IGNITION COIL FOR IGNITION SYSTEMS FOR INTERNAL COMBUSTION ENGINES
DE3301224 1983-01-15

Publications (2)

Publication Number Publication Date
EP0126734A1 true EP0126734A1 (en) 1984-12-05
EP0126734B1 EP0126734B1 (en) 1986-06-04

Family

ID=25806112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83903378A Expired EP0126734B1 (en) 1982-11-26 1983-11-04 Ignition coal for ignition devices of internal combustion engines

Country Status (8)

Country Link
US (1) US4580122A (en)
EP (1) EP0126734B1 (en)
JP (1) JPH061737B2 (en)
AU (2) AU559858B2 (en)
DE (2) DE3301224A1 (en)
ES (1) ES8406781A1 (en)
IT (1) IT1168732B (en)
WO (1) WO1984002224A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4677960A (en) * 1984-12-31 1987-07-07 Combustion Electromagnetics, Inc. High efficiency voltage doubling ignition coil for CD system producing pulsed plasma type ignition
DE3506929A1 (en) * 1985-02-27 1986-08-28 Robert Bosch Gmbh, 7000 Stuttgart IGNITION DEVICE WITH A HIGH VOLTAGE CONNECTION
US4684912A (en) * 1986-07-09 1987-08-04 Marshall Electric Corporation Winding form for high voltage transformer
DE3745047C2 (en) * 1986-12-04 1997-04-30 Nippon Denso Co Closed magnetic path ignition coil assembly e.g. for motor vehicle
DE3851478T2 (en) * 1987-06-30 1995-03-16 Tdk Corp Transformer.
DE3937828C1 (en) * 1989-11-14 1991-06-20 Bremi Auto-Elektrik Bremicker Gmbh + Co, 5883 Kierspe, De Ignition coil for IC engine - has two opposite-facing side walls of housing with orifices which serve as entrance for magnetic core
US5109209A (en) * 1990-04-28 1992-04-28 Toyo Denso Kabushiki Kaisha Ignition coil device for engine
DE4040604A1 (en) * 1990-12-19 1992-06-25 Bosch Gmbh Robert METHOD AND DEVICE FOR PRODUCING COILS
DE4132699C2 (en) * 1991-10-01 1996-07-18 Beru Werk Ruprecht Gmbh Co A Multiple ignition coil
DE4309818C2 (en) * 1993-03-26 1999-10-28 Bayerische Motoren Werke Ag Ignition unit for internal combustion engines
DE4314444A1 (en) * 1993-05-03 1994-11-10 Daimler Benz Ag Ignition coil for internal combustion engines
DE19815153C1 (en) * 1998-03-27 1999-07-15 Siemens Ag Current transformer for driving over-current trip of low-voltage (LV) circuit-breaker
US8026783B2 (en) * 2009-09-08 2011-09-27 Delphi Technologies, Inc. Ignition coil for vehicle
WO2016181517A1 (en) 2015-05-13 2016-11-17 三菱電機株式会社 Ignition coil for internal combustion engine
US11380479B2 (en) 2019-06-13 2022-07-05 Marshall Electric Corp. High voltage ignition coil with improved insulating characteristics

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1732937A (en) * 1929-10-22 Transformer and coil system
US1062046A (en) * 1908-01-10 1913-05-20 Westinghouse Electric & Mfg Co Electrical apparatus.
US1896143A (en) * 1932-04-13 1933-02-07 Delco Remy Corp Coil-switch unit
US2107973A (en) * 1934-12-29 1938-02-08 Transformateurs De Mesure E Wa Electric transformer for high tension
CH204606A (en) * 1937-01-14 1939-05-15 Transformateurs De Mesure E Wa Electrical transformer for high voltage.
US2695856A (en) * 1952-08-22 1954-11-30 Mcculloch Motors Corp Impregnation of electrical components
FR1119719A (en) * 1954-12-18 1956-06-25 Holding Ind Et Financiere Mandrel for anti-capacitive mounting of secondary circuits of ignition coils for explosion engines
US3236937A (en) * 1963-04-29 1966-02-22 Briggs & Stratton Corp Connector means and receptacle for connecting high tension lead to ignition coil
US3675077A (en) * 1971-01-18 1972-07-04 Floyd M Minks High voltage ignition system transformer
JPS5221613A (en) * 1975-08-13 1977-02-18 Hitachi Ltd Ignition coil
AU511801B2 (en) * 1976-05-04 1980-09-04 Philips Industries Holdings Limited Magneto ignition oil
DE2628524C2 (en) * 1976-06-24 1982-06-09 Siemens AG, 1000 Berlin und 8000 München High-voltage winding from several sub-coils for voltage converters,
US4179796A (en) * 1978-03-13 1979-12-25 Varo Semiconductor, Inc. Method of making a transformer with an improved insulation system
DE2822093A1 (en) * 1978-05-20 1979-11-22 Hoechst Ag MOTOR VEHICLE IGNITION COIL INSULATED WITH THERMOPLASTIC PLASTIC
DE2838174A1 (en) * 1978-09-01 1980-03-13 Philips Patentverwaltung HV low power transformer coil - has two coaxial ribbed cylindrical formers with winding sections linked in series between ends
JPS598331Y2 (en) * 1978-10-20 1984-03-15 ソニー株式会社 flyback transformer
US4352079A (en) * 1981-07-24 1982-09-28 Honeywell Inc. High voltage ignition transformer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8402224A1 *

Also Published As

Publication number Publication date
US4580122A (en) 1986-04-01
DE3301224A1 (en) 1984-05-30
DE3363959D1 (en) 1986-07-10
AU2201583A (en) 1984-06-18
EP0126734B1 (en) 1986-06-04
JPS60500152A (en) 1985-01-31
WO1984002224A1 (en) 1984-06-07
AU6360986A (en) 1987-01-08
AU559858B2 (en) 1987-03-19
AU570857B2 (en) 1988-03-24
IT8323813A0 (en) 1983-11-22
IT1168732B (en) 1987-05-20
JPH061737B2 (en) 1994-01-05
ES527570A0 (en) 1984-08-01
ES8406781A1 (en) 1984-08-01

Similar Documents

Publication Publication Date Title
EP0126734A1 (en) Ignition coal for ignition devices of internal combustion engines.
WO1992009840A1 (en) Tube joint, in particular for composite tubes
DE19624519A1 (en) Electrical machine with liquid cooling e.g. of generator or motor for motor vehicle
DE19611220C2 (en) Electrical connecting element, in particular for an ignition device for an internal combustion engine
DE10308077B4 (en) Device for energy storage and energy transformation
EP0297493A2 (en) Protecting device for pipe ends
DE2506874B2 (en) Attachment of a metal connector to a plastic hose reinforced on the outside with wire mesh
DE19927820C1 (en) Rod ignition coil, especially for internal combustion engine, has cylindrical housing containing outer and coil bodies with primary and secondary windings, and central weakly magnetic core
DE19702438A1 (en) Rod-shaped ignition coil for combustion engine
EP0862807A1 (en) Restrain coil for ignition systems
EP0818853A2 (en) Squib connector
EP0172401B1 (en) Joint for multichannel pipes
DE3716206A1 (en) ELECTRICALLY INSULATED CONNECTION FOR METAL PIPES
DE19623399A1 (en) Ignition coil for internal combustion (IC) engine
DE4337403A1 (en) Electrical high-voltage switchgear with a toroidal current transformer
DE2245311A1 (en) CONNECTION OF PIPE-SHAPED, ELECTRICALLY INSULATED COMPONENTS AND / OR CABLE PARTS
DE951941C (en) Explosion-proof or firedamp-proof housing for electrical devices
DE2713398A1 (en) PIPE CONNECTOR
DE3808228A1 (en) Sleeve for welding plastic pipes and profiles
DE2003068B2 (en) EASILY DISMOUNTABLE INSULATION PIECE OF SMALL NOMINAL SIZE
DE19705373A1 (en) Method of attaching a ground electrode to the spark plug body of a spark plug
DE3937828C1 (en) Ignition coil for IC engine - has two opposite-facing side walls of housing with orifices which serve as entrance for magnetic core
DE10231510B3 (en) IC engine ignition coil device has coil former or electrical insulator between wound coil former and outer mantle provided with sealing profile for preventing ingress of dirt or moisture
DE3113743C2 (en)
DE19916392B4 (en) Connection area to an encapsulated, gas-insulated high-voltage system

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19840614

AK Designated contracting states

Designated state(s): DE FR GB

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB

REF Corresponds to:

Ref document number: 3363959

Country of ref document: DE

Date of ref document: 19860710

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19921027

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19931104

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19931104

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19960129

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19961115

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19970801

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19971130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST