WO1990004717A1 - An arrangement with an ignition coil and an ignition coil circuit - Google Patents

An arrangement with an ignition coil and an ignition coil circuit Download PDF

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Publication number
WO1990004717A1
WO1990004717A1 PCT/DE1989/000520 DE8900520W WO9004717A1 WO 1990004717 A1 WO1990004717 A1 WO 1990004717A1 DE 8900520 W DE8900520 W DE 8900520W WO 9004717 A1 WO9004717 A1 WO 9004717A1
Authority
WO
WIPO (PCT)
Prior art keywords
ignition coil
holder
arrangement according
switching device
ignition
Prior art date
Application number
PCT/DE1989/000520
Other languages
German (de)
French (fr)
Inventor
Ulrich Bentel
Gerhard SÖHNER
Karl-Heinz NÜBEL
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 WO1990004717A1 publication Critical patent/WO1990004717A1/en

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Classifications

    • 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
    • F02P3/00—Other installations
    • F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils

Definitions

  • the invention relates to an arrangement with an ignition coil having an iron core projecting on both sides of the coil body and an ignition coil switching device.
  • An arrangement of ignition coils is known from DE-OS 27 20 065, in which the coil elements and the control elements of an electronic ignition system are arranged in a one-piece housing made of die-cast.
  • the internal structure of the die-cast housing is adapted to the shape of the elements mounted in it, which is why only elements with very specific dimensions can be inserted into the housing.
  • the ignition coil is also known to mount the ignition coil on the distributor, the coil housing being fastened either to the cap or to the housing of the distributor, but at least being made in one piece with one of the two.
  • an ignition coil switching device with the characterizing features of the main claim has the advantage that an all-round enclosed space can be formed in a simple manner by using a very simply constructed holder which is essentially of cross-sectional design the electrical connecting lines and the associated connections can be arranged protected against contact.
  • a heat-conducting connection between the cooling plate of the ignition coil switching device and the iron core of the ignition coil is created via the side walls of the holder. The heat generated can thus be optimally dissipated and radiated.
  • the upwardly open space of the holder is preferably closed with a protective cover serving as a contactor.
  • the protective cover can consist of an electrically insulating material.
  • the connecting lines between the ignition coil and the ignition coil switching device can be designed as stable busbars which are particularly short and simple in the case of directly opposite connection terminals.
  • Figure 2 is a side view of that shown in Figure 1
  • Figure 3 is a top view of the arrangement shown in Figure 1.
  • FIG. 1 the end face of a holder 1 and an ignition coil 2 can be seen.
  • the holder 1 encompasses the egg core 3, which is partially shown in FIG.
  • the holder 1 is shown in section in the lower area, so that there the bottom 4 is visible.
  • the bottom 4 connects its two side walls 5, 6 (FIG. 3), so that the holder 1 essentially forms a U-shaped part.
  • a cooling plate 9 is screwed, which is part of an ignition coil switching device 10, the components of which are arranged in the interior 11.
  • the connection between the side walls 5, 6 and the cooling plate 9 takes place via screws 12, 13.
  • the interior 11 is thus completely closed off from the cooling plate 9 in the region of the end face 8.
  • the top of the arrangement is covered by a protective cover 14, which serves as a contactor.
  • the interior 11 is thus closed on all sides, specifically by the holder 1 with its side walls 5, 6 and with its base 4, by the iron core 3, by the cooling plate 9 and by the protective cover 14.
  • FIG. 3 shows two busbars 15, which run from the ignition coil control device 10 to the connections 16 the ignition coil 2.
  • An ignition coil plug 17 and a three-ply connector plug 18 leading to the ignition coil switching device 10 protrude from the upper side for connecting corresponding lines.
  • the conventional holder 1 engages around the iron core 3 in the form of an angle 19, 20 and is connected to the iron core 3 by means of through rivets 21, 22. Good heat transfer between the iron core 3 and the cooling plate 9 is thus achieved via the holder 1 made of die-cast aluminum.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

The proposal is for a casing with an ignition coil having an iron core above the coil body on both sides and an ignition coil circuit in which it is possible, through the use of a very simply constructed holder with an essentially U-shaped cross-section, easily to form a completely enclosed inner region where the cooling plate of the ignition cirucit forms the cover. Thus the existing heat can be dissipated in the best possible way and both the circuit and the ignition coil are protected.

Description

Anordnung mit einer Zündspule und einem Zündspulenschaltgerät Arrangement with an ignition coil and an ignition coil switching device
Stand der TechnikState of the art
Die Erfindung betrifft eine Anordnung mit einer einen beidseitig am Spulenkörper überstehenden Eisenkern auf¬ weisenden Zündspule und einem Zündspulenschaltgerät.The invention relates to an arrangement with an ignition coil having an iron core projecting on both sides of the coil body and an ignition coil switching device.
Aus der DE-OS 27 20 065 ist eine Anordnung von Zündspu¬ len bekannt, bei der die Spulenelemente sowie die Steuerelemente einer elektronischen Zündanlage in einem einstückigen Gehäuse aus Druckguß angeordnet sind. Das Druckgußgehäuse ist in seinem inneren Aufbau an die Form der in ihm gelagerten Elemente angepaßt, weshalb nur Elemente mit ganz bestimmten Abmessungen in das Ge¬ häuse einsetzbar sind.An arrangement of ignition coils is known from DE-OS 27 20 065, in which the coil elements and the control elements of an electronic ignition system are arranged in a one-piece housing made of die-cast. The internal structure of the die-cast housing is adapted to the shape of the elements mounted in it, which is why only elements with very specific dimensions can be inserted into the housing.
Bekannt ist es außerdem, die Zündspule am Zündverteiler anzubauen, wobei das Spulengehäuse entweder an der Kap¬ pe oder am Gehäuse des Zündverteilers befestigt, zumin¬ dest jedoch mit einem der beiden einstückig ausgebildet ist.It is also known to mount the ignition coil on the distributor, the coil housing being fastened either to the cap or to the housing of the distributor, but at least being made in one piece with one of the two.
Vorteile der ErfindungAdvantages of the invention
Die erfindungsgemäße Anordnung mit einer Zündspule und einem Zündspulenschaltgerät mit den kennzeichnenden Merkmalen des Hauptanspruchs hat demgegenüber den Vorteil, daß durch Verwendung eines sehr einfach aufge¬ bauten Halters, der im Querschnitt im wesentlichen ü- fδππig ausgebildet ist, auf einfache Weise ein allsei¬ tig umschlossener Inneraum gebildet werden kann, in dem die elektrischen Verbindungsleitungen und die zugehöri¬ gen Anschlüsse berührungsgeschützt angeordnet werden können. Außerdem wird über die Seitenwände des Halters eine wärmeleitende Verbindung zwischen der Kühlplatte des Zündspulenschaltgeräts und dem Eisenkern der Zünd¬ spule geschaffen. Die entstehende Wärme kann somit op¬ timal abgeleitet und abgestrahlt werden.The arrangement according to the invention with an ignition coil and In contrast, an ignition coil switching device with the characterizing features of the main claim has the advantage that an all-round enclosed space can be formed in a simple manner by using a very simply constructed holder which is essentially of cross-sectional design the electrical connecting lines and the associated connections can be arranged protected against contact. In addition, a heat-conducting connection between the cooling plate of the ignition coil switching device and the iron core of the ignition coil is created via the side walls of the holder. The heat generated can thus be optimally dissipated and radiated.
Vorzugsweise wird der nach oben offene Raum des Halters mit einem als Berührungsschütz dienenden Schutzdeckel verschlossen. Der Schutzdeckel kann aus einem elek¬ trisch isolierenden Material bestehen.The upwardly open space of the holder is preferably closed with a protective cover serving as a contactor. The protective cover can consist of an electrically insulating material.
°er us Aluminium-Druckguß hergestellte Halter umgreift bei der bevorzugten Ausführungsform den überstehenden Teil des Eisenkerns, der Zündspule und ist mit diesem vernietet. Dadurch wird der Eisenkern nach außen abge¬ deckt und weitgehend gegen Korrosion geschützt.° e r us die-cast aluminum grips in the preferred embodiment, the protruding part of the iron core, the ignition coil and is riveted to this. As a result, the iron core is covered to the outside and largely protected against corrosion.
Im Innenraum können die Verbindungsleitungen zwischen Zündspule und dem Zündspulenschaltgerät als stabile Stromschienen ausgebildet sein, die bei unmittelbar ge¬ genüberliegenden Anschlußklemmen besonders kurz und einfach ausgebildet sind.In the interior, the connecting lines between the ignition coil and the ignition coil switching device can be designed as stable busbars which are particularly short and simple in the case of directly opposite connection terminals.
Zeichnungdrawing
Ein Ausführungsbeispiel der Erfindung ist in der Zeich- nung anhand dreier Figuren dargestellt und in folgender Beschreibung näher erläutert. Es zeigen: Figur 1 die Anordnung von der Stirnseite, an der die Zündspule angeordnet ist,An embodiment of the invention is shown in the drawing with reference to three figures and explained in more detail in the following description. Show it: 1 shows the arrangement from the end face on which the ignition coil is arranged,
Figur 2 die Seitenansicht der in Figur 1 dargestelltenFigure 2 is a side view of that shown in Figure 1
Anordnung undArrangement and
Figur 3 die Draufsicht der in Figur 1 dargestellten Anordnung.Figure 3 is a top view of the arrangement shown in Figure 1.
In Figur 1 ist die Stirnseite eines Halters 1 und einer Zündspule 2 ersichtlich. Der Halter 1 umgreift den Ei¬ senkern 3, der in Figur 3 teilweise dargestellt ist.In Figure 1, the end face of a holder 1 and an ignition coil 2 can be seen. The holder 1 encompasses the egg core 3, which is partially shown in FIG.
In Figur 2 ist der Halter 1 im unteren Bereich im Schnitt dargestellt, so daß dort dessen Boden 4 sicht¬ bar wird. Der Boden 4 verbindet seine beiden Seitenwän¬ de 5, 6 (Figur 3), so daß der Halter 1 im wesentlichen ein U-fδrmiges Teil bildet. An der einen Stirnseite 7 ist der Freiraum zwischen den beiden Seitenwänden 5, 6 durch die Zündspule 2 mit Eisenkern abgeschlossen. An der anderen Stirnseite 8 der Seitenwände 5, 6 ist eine Kühlplatte 9 festgeschraubt, die Teil eines Zündspulen- schaltgeräts 10 ist, dessen Bauteile im Innenraum 11 angeordnet sind. Die Verbindung zwischen den Seitenwän¬ den 5, 6 und der Kühlplatte 9 erfolgt über Schrauben 12, 13. Der Innenraum 11 ist somit von der Kühlplatte 9 im Bereich der Stirnseite 8 vollständig abgeschlossen.In Figure 2, the holder 1 is shown in section in the lower area, so that there the bottom 4 is visible. The bottom 4 connects its two side walls 5, 6 (FIG. 3), so that the holder 1 essentially forms a U-shaped part. On one end face 7, the free space between the two side walls 5, 6 is closed by the ignition coil 2 with an iron core. On the other end 8 of the side walls 5, 6, a cooling plate 9 is screwed, which is part of an ignition coil switching device 10, the components of which are arranged in the interior 11. The connection between the side walls 5, 6 and the cooling plate 9 takes place via screws 12, 13. The interior 11 is thus completely closed off from the cooling plate 9 in the region of the end face 8.
Die Oberseite der Anordnung ist von einem Schutzdeckel 14 abgedeckt, der als Beruhrungsschütz dient. Somit ist der Innenraum 11 allseitig abgeschlossen, und zwar durch den Halter 1 mit seinen Seitenwänden- 5, 6 und mit seinem Boden 4, durch den Eisenkern 3, durch die Kühl¬ platte 9 und durch den Schutzdeckel 14.The top of the arrangement is covered by a protective cover 14, which serves as a contactor. The interior 11 is thus closed on all sides, specifically by the holder 1 with its side walls 5, 6 and with its base 4, by the iron core 3, by the cooling plate 9 and by the protective cover 14.
Die Draufsicht von Figur 3 zeigt zwei Stromschienen 15, die vom Zündspulensteuergerät 10 zu den Anschlüssen 16 der Zündspule 2 führen. An der Oberseite stehen zum An¬ schluß entsprechender Leitungen ein Zündspulenstecker 17 und ein zum Zündspulenschaltgerät 10 führender drei- bohliger AnschlußStecker 18 ab. In Figur 3 ist im übri¬ gen auch ersichtlich, daß der ü-fδrmige Halter 1 den Eisenkern 3 in Form eines Winkels 19, 20 umgreift und mittels Durchgangsnieten 21 , 22 mit dem Eisenkern 3 verbunden ist. Es wird somit eine gute Wärmeübertragung zwischen Eisenkern 3 und Kühlplatte 9 über den aus Aluminium-Druckguß gefertigten Halter 1 erreicht. The top view of FIG. 3 shows two busbars 15, which run from the ignition coil control device 10 to the connections 16 the ignition coil 2. An ignition coil plug 17 and a three-ply connector plug 18 leading to the ignition coil switching device 10 protrude from the upper side for connecting corresponding lines. In FIG. 3 it can also be seen that the conventional holder 1 engages around the iron core 3 in the form of an angle 19, 20 and is connected to the iron core 3 by means of through rivets 21, 22. Good heat transfer between the iron core 3 and the cooling plate 9 is thus achieved via the holder 1 made of die-cast aluminum.

Claims

Schutzansprüche Protection claims
1. Anordnung mit einer einen beidseitig am Spulenkörper überstehenden Eisenkern aufweisenden Zündspule und ei¬ nem Zündspulenschaltgerät, dadurch gekennzeichnet, daß ein Halter (1 ) mit zwei im Abstand parallel verlaufen¬ den Seitenwänden (5, 6) vorgesehen ist, die über eine Bodenplatte (4) oder dergleichen miteinander verbunden sind, und daß die beiden gegenüberliegenden offenen Stirnseiten (7, 8) des Halters (1) einerseits vom Ei¬ senkern (3) der Zündspule (2) und andererseits von ei¬ ner Kühlplatte (9) des Zündspulenschaltgeräts (10) ab¬ geschlossen sind.1. Arrangement with an ignition coil protruding on both sides of the coil body and an ignition coil switch, characterized in that a holder (1) is provided with two side walls (5, 6) which run parallel and at a distance and are arranged over a base plate ( 4) or the like are connected to each other, and that the two opposing open end faces (7, 8) of the holder (1) on the one hand from the egg core (3) of the ignition coil (2) and on the other hand from a cooling plate (9) of the ignition coil switching device (10) are completed.
2. Anordnung nach Anspruch 1 , dadurch gekennzeichnet, daß ein als Berührungsschutz dienender Schutzdeckel (14) den vom Halter (1), der Zündspule (2) und dem Zündspulenschaltgerät (10) umschlossenen Innenraum (11) an seiner offenen Seite abdeckt.2. Arrangement according to claim 1, characterized in that a protective cover (14) serving as protection against contact covers the interior (11) enclosed by the holder (1), the ignition coil (2) and the ignition coil switching device (10) on its open side.
3. Anordnung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der Halter (1) aus Aluminium- Druckguß besteht.3. Arrangement according to one of claims 1 or 2, characterized in that the holder (1) consists of die-cast aluminum.
4. Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Halter (1) den an der Zündspule (2) überstehenden Teil des Eisenkerns (3) um¬ greift und mit diesem mechanisch verbunden ist. 4. Arrangement according to one of the preceding claims, characterized in that the holder (1) engages around the part of the iron core (3) protruding from the ignition coil (2) and is mechanically connected to it.
5. Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die elektrischen Verbin¬ dungsleitungen zwischen der Zündspule (2) und dem Zünd¬ spulenschaltgerät (10) zusammen mit den hierfür erfor¬ derlichen Anschlußklemmen (16) im Innenraum (1.1 ) des Halters (1) befindlich sind.5. Arrangement according to one of the preceding claims, characterized in that the electrical connection lines between the ignition coil (2) and the ignition coil switching device (10) together with the necessary terminals (16) in the interior (1.1) of the holder (1) are located.
6. Anordnung nach Anspruch 5, dadurch gekennzeichnet, daß die Verbindungsleitungen als Stromschienen (15) ausgebildet sind.6. Arrangement according to claim 5, characterized in that the connecting lines are designed as busbars (15).
7. Anordnung nach einem der vorhergehenden Ansprüche, dadurch gekennnzeichnet, daß am Zündspulenschaltgerät (10) ein Anschlußstecker (18) und an der Zündspule (2) der Zündkabelanschluß (17) nach außen absteht. 7. Arrangement according to one of the preceding claims, characterized in that on the ignition coil switching device (10) a connector (18) and on the ignition coil (2) of the ignition cable connection (17) protrudes outwards.
PCT/DE1989/000520 1988-10-26 1989-08-08 An arrangement with an ignition coil and an ignition coil circuit WO1990004717A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEG8813416.4U 1988-10-26
DE8813416U DE8813416U1 (en) 1988-10-26 1988-10-26

Publications (1)

Publication Number Publication Date
WO1990004717A1 true WO1990004717A1 (en) 1990-05-03

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Application Number Title Priority Date Filing Date
PCT/DE1989/000520 WO1990004717A1 (en) 1988-10-26 1989-08-08 An arrangement with an ignition coil and an ignition coil circuit

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DE (1) DE8813416U1 (en)
ES (1) ES2017058A6 (en)
WO (1) WO1990004717A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991004411A1 (en) * 1989-09-13 1991-04-04 Robert Bosch Gmbh Ignition coil

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260891A (en) * 1964-04-01 1966-07-12 Judson And Judson Integrated transistorized ignition control system
US3902471A (en) * 1973-01-23 1975-09-02 Bbc Brown Boveri & Cie Ignition system for internal combustion engines
US3935852A (en) * 1974-05-20 1976-02-03 R. E. Phelon Company, Inc. Spark plug connector and ignition coil module for engine ignition system
GB2019488A (en) * 1978-03-18 1979-10-31 Bosch Gmbh Robert Module for the ignition system of an internal combustion en gine
DE2929255A1 (en) * 1979-07-17 1981-01-22 Becker Ulf Ignition coil for IC engine - incorporates electronic switching components as part of coil housing or fixing arrangements
WO1985000930A1 (en) * 1983-08-05 1985-02-28 Saab-Scania Aktiebolag Ignition unit in the ignition system of an internal combustion engine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260891A (en) * 1964-04-01 1966-07-12 Judson And Judson Integrated transistorized ignition control system
US3902471A (en) * 1973-01-23 1975-09-02 Bbc Brown Boveri & Cie Ignition system for internal combustion engines
US3935852A (en) * 1974-05-20 1976-02-03 R. E. Phelon Company, Inc. Spark plug connector and ignition coil module for engine ignition system
GB2019488A (en) * 1978-03-18 1979-10-31 Bosch Gmbh Robert Module for the ignition system of an internal combustion en gine
DE2929255A1 (en) * 1979-07-17 1981-01-22 Becker Ulf Ignition coil for IC engine - incorporates electronic switching components as part of coil housing or fixing arrangements
WO1985000930A1 (en) * 1983-08-05 1985-02-28 Saab-Scania Aktiebolag Ignition unit in the ignition system of an internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991004411A1 (en) * 1989-09-13 1991-04-04 Robert Bosch Gmbh Ignition coil

Also Published As

Publication number Publication date
DE8813416U1 (en) 1990-02-22
ES2017058A6 (en) 1990-12-16

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