EP1478846B1 - Elektronisches modul für verbrennungsmotor-zündspule - Google Patents

Elektronisches modul für verbrennungsmotor-zündspule Download PDF

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Publication number
EP1478846B1
EP1478846B1 EP03737343A EP03737343A EP1478846B1 EP 1478846 B1 EP1478846 B1 EP 1478846B1 EP 03737343 A EP03737343 A EP 03737343A EP 03737343 A EP03737343 A EP 03737343A EP 1478846 B1 EP1478846 B1 EP 1478846B1
Authority
EP
European Patent Office
Prior art keywords
ignition coil
module
housing
electric transformer
electronic
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.)
Expired - Lifetime
Application number
EP03737343A
Other languages
English (en)
French (fr)
Other versions
EP1478846A1 (de
Inventor
Eric Cavarero
Olivier Barthomeuf
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.)
Johnson Controls Automotive Electronics SAS
Original Assignee
Johnson Controls Automotive Electronics SAS
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 Johnson Controls Automotive Electronics SAS filed Critical Johnson Controls Automotive Electronics SAS
Publication of EP1478846A1 publication Critical patent/EP1478846A1/de
Application granted granted Critical
Publication of EP1478846B1 publication Critical patent/EP1478846B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • F02P13/00—Sparking plugs structurally combined with other parts of internal-combustion engines
    • 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
    • F02P9/00—Electric spark ignition control, not otherwise provided for
    • F02P9/002—Control of spark intensity, intensifying, lengthening, suppression
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/02—Details
    • H01T13/04—Means providing electrical connection to sparking plugs
    • H01T13/05—Means providing electrical connection to sparking plugs combined with interference suppressing or shielding means
    • 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

Definitions

  • the present invention relates to an electronic module for ignition coil of an internal combustion engine, an ignition coil and a method of manufacturing an ignition coil.
  • the ignition coils essentially consist of a transformer intended to provide a voltage peak which, in turn, will cause a spark at the electrodes of a spark plug located inside the ignition coil. an internal combustion engine cylinder.
  • FIG. 1 schematically illustrates the prior art.
  • This figure shows an ignition coil 1 composed of a primary winding 2 and a secondary winding 3.
  • the ends of the primary winding 2 are connected on one side to the vehicle battery and on the other side side to an electronic control unit 4, and the output of the ignition coil is connected to the input of a spark plug 5.
  • diode 6 it is also known to use a diode 6 to limit the risk of an unwanted spark occurring between the electrodes of the spark plug 5 during charging of the primary 2.
  • This diode 6 can be mounted as shown in the drawing between the secondary and the primary of the ignition coil 1.
  • the present invention aims to overcome these disadvantages.
  • the invention aims to provide an electronic module capable of integrating the various electronic components that can be used in combination with the transformer of the ignition coil.
  • the various electronic components associated with the transformer part of the ignition coil are integrated in a single envelope provided with the necessary connection means so as to form an electronic module that can be mounted in a block on a single operation on the ignition coil. 'ignition.
  • said envelope defines a generally cylindrical internal volume open at its axial ends, at least a first of these ends being closed by a first cap forming a connection terminal.
  • said first cap can form the connection terminal adapted to connect said module to the input of the spark plug.
  • the second axial end of said volume may be closed by a second cap forming the connection terminal adapted to connect said module to the high voltage output of the electrical transformer of the ignition coil, said caps delimiting in said volume an enclosure in which are arranged said electronic components.
  • the second axial end of said volume is open, a partition being disposed in said volume at an axially intermediate location so as to define an enclosure in said volume with said first cap, a part of said components.
  • electronics being disposed in said enclosure and the other part of said electronic components being disposed in said volume outside said enclosure between its open end and said partition.
  • the electronic module according to the invention may comprise elastic means in said enclosure for maintaining an electrical connection between said at least two electronic components so as to form an electronic circuit.
  • These resilient means also serve to press the different electronic components against their respective connecting pieces.
  • means may be provided in said enclosure for connecting said electronic circuit to at least one of said caps and / or said partition.
  • At least one of said electronic components disposed in said enclosure is a generally cylindrical component provided at at least one of its ends with a contact pad adapted to provide an electrical connection with one of said caps and / or said partition and / or said elastic means.
  • At least one of said electronic components outside said enclosure is of the type comprising external connection wires one of these wires being electrically connected to the face of said outer partition to said enclosure.
  • At least one of said electronic components outside said enclosure may be of the type comprising external connection wires, one of these wires being electrically connected to a connection pad adapted to connect said module to the high output. ignition coil electrical transformer voltage or at the input of a spark plug.
  • At least one of said electronic components may be an electrical resistor and another electronic component may be a diode, said components being electrically connected in series.
  • the electrical resistance is arranged to be electrically connected to the high voltage output of the ignition coil electrical transformer and the diode is arranged to be electrically connected to the entrance of the candle. ignition.
  • a second object of the invention is an ignition coil of an internal combustion engine, particularly a motor vehicle, comprising an electronic module as described above.
  • this ignition coil comprises a housing forming a first housing for an electrical transformer and a conduit for electrical connection means with an inlet of a spark plug, said housing forming a second housing for said module between said housing for the electrical transformer and said conduit.
  • the ignition coil may comprise elastic means in said conduit to provide an electrical connection between said first cap and said inlet of a spark plug .
  • the coil may comprise an insulating resin overmolding said electrical transformer and extending towards said conduit to said second cap.
  • an insulating resin may overmold said electrical transformer and extend in the direction said duct to said partition.
  • the ignition coil may comprise elastic means for electrical connection between the high voltage output of the electrical transformer and said electronic module.
  • FIG. 2 shows an ignition coil 10 mounted on the cylinder head 11 of an internal combustion engine.
  • the ignition coil 10 comprises a housing 12, made of molded plastic material.
  • the housing 12 forms a first housing 13 for a transformer 14, a second housing 15 for an electronic module 16 which will be described hereinafter with reference to FIG. 3, and a conduit 17 in which a spring is disposed in a known manner. 18 providing the electrical connection between the ignition coil 10 and a spark plug (not shown) mounted at the bottom of the cylinder head well receiving the conduit 17.
  • the transformer 14 is also made in known manner with, for example, a magnetic core, a primary winding, a primary winding, a secondary winding and a secondary winding concentric and a magnetic flux return circuit.
  • the primary winding of the transformer 14 is connected to an input connector 19 of the coil, this connector being itself connected to an electronic control unit not shown.
  • An elastic contact blade 20 is connected at one of its ends to the output of the secondary winding of the transformer 14 while its other end is supported on the input terminal of the electronic module 16 which will now be described with reference to FIG.
  • This module 16 comprises a casing 21 of molded plastic delimiting a cylindrical internal space 22, for example of circular section. Each end of the volume 22 is closed by a cap 23, 24 conductor which can be for example force-fitted or glued to ensure its maintenance on the module.
  • the side walls of the volume 22 and the caps 23, 24 delimit an enclosure which receives a diode 25 and a resistor 26.
  • Each of these components is generally cylindrical and comprises two end contact pads 27, 27 ', respectively 28, 28 .
  • a spring 29 is disposed in the chamber between the components 25 and 26 so as to move them away from each other by pressing the stud 27 of the component 25 against the cap 23 and the stud 28 'of the component 26 against the cap 24, while ensuring the electrical contact between the pads 27 'and 28.
  • the components 25 and 26 form an electrical circuit whose connection terminals with the external environment are constituted by the caps 23 and 24.
  • the coil 10 it starts independently to realize the housing 12, the electrical transformer 14 and the electronic module 16.
  • the electronic module 16 is then placed in the housing 15 and the electrical transformer 14 is placed in the housing 13.
  • the contact blade 20 then bears against the cap 23.
  • An insulating resin is then poured into the housing 13 so as to overmold the transformer 14. This resin extends to the cap 23 which acts as a sealing member. This resin is then polymerized.
  • FIG. 4 essentially aims to prevent an electric arc from occurring between the terminals of the diode.
  • the casing 21 receives only the end cap 24 intended to ensure the connection with the spring 18, its other end remaining open.
  • an intermediate partition 30 is force-fitted or glued in the axially central zone of the envelope 21 so as to form a sealing element.
  • the inner walls of the envelope 21 delimit with the cap 24 and the partition 30 an enclosure 31.
  • the resistor 26 is disposed inside the enclosure 31.
  • a spring 29 is disposed between the resistor 26 and the partition 30 to apply the contact pad 28 'against the cap 24 and provide an electrical connection between the resistor and the partition 30.
  • a diode 32 is disposed in the envelope 21 between the partition 30 and the open end of this envelope.
  • This diode 32 has two connection wires, one of which 33 is soldered outside the partition 30, seen from the enclosure 31.
  • the other connection wire 34 projects outside the envelope 21.
  • the insulating resin 35 is cast in the housing to extend to the partition 30, thus overmoulding the diode 32. The risk of creating an arc between the connection son of this diode are thus limited.

Landscapes

  • 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)

Claims (13)

  1. Elektronisches Modul für eine Zündspule eines Verbrennungsmotors insbesondere eines Kraftfahrzeugs, dadurch gekennzeichnet, dass es mindestens aufweist:
    - eine Hülle (21);
    - mindestens zwei elektronische Bauteile, darunter eine Diode (32) und ein Widerstand (26), die in der Hülle angeordnet sind;
    - Mittel (30, 29), um eine elektrische Verbindung zwischen den mindestens zwei elektronischen Bauteilen zu gewährleisten, um eine elektronische Schaltung zu bilden;
    - eine Anschlussklemme (34), die das Modul mit einem Hochspannungsausgang eines elektrischen Transformators (14) einer Zündspule verbinden kann;
    - eine Anschlussklemme (24), die das Modul mit dem Eingang einer Zündkerze verbinden kann; und
    - Mittel (28'), um die elektronische Schaltung elektrisch mit den Anschlussklemmen zu verbinden,
    - wobei die Hülle ein allgemein zylindrisches und an seinen axialen Enden offenes inneres Volumen definiert, wobei mindestens ein erstes dieser Enden von einer Kappe (24) verschlossen wird, die die Anschlussklemme des Moduls an den Eingang der Zündkerze bildet,
    - wobei das zweite axiale Ende des Volumens der Hülle offen ist, wobei eine Trennwand (30) in dem Volumen an einer axialen Zwischenstelle angeordnet ist, um einen Raum (31) in dem Volumen mit der Kappe (24) zu bilden, wobei ein Teil der elektronischen Bauteile in dem Raum (31) und der andere Teil der elektronischen Bauteile in dem Volumen außerhalb des Raums zwischen seinem offenen Ende und der Trennwand (30) angeordnet ist.
  2. Elektronisches Modul nach Anspruch 1, dadurch gekennzeichnet, dass es elastische Mittel (29) in dem Raum (31) aufweist, um eine elektrische Verbindung zwischen den mindestens zwei elektronischen Bauteilen (32, 26) zu gewährleisten, um eine elektronische Schaltung zu bilden.
  3. Elektronisches Modul nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass es elastische Mittel (29) in dem Raum (31) aufweist, um den Widerstand (26) mit der Trennwand (30) zu verbinden.
  4. Elektronisches Modul nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass mindestens eines der elektronischen Bauteile (32, 26), die in dem Raum (31) angeordnet sind, ein allgemein zylindrisches Bauteil ist, das an mindestens einem seiner Enden mit einem Kontaktstück (28') versehen ist, das eine elektrische Verbindung mit der Kappe (24) gewährleisten kann.
  5. Elektronisches Modul nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der außerhalb des Raums (31) angeordnete Widerstand (32) von dem Typ ist, der äußere Verbindungsdrähte (33, 34) aufweist, wobei einer dieser Drähte elektrisch mit der Seite der Trennwand (30) außerhalb des Raums (31) verbunden ist.
  6. Elektronisches Modul nach Anspruch 5, bei dem der andere Verbindungsdraht (34) des Widerstands (32) elektrisch mit einem Anschlusskontakt verbunden ist, der das Modul mit dem Hochspannungsausgang des elektrischen Transformators einer Zündspule verbinden kann.
  7. Zündspule eines Verbrennungsmotors insbesondere eines Kraftfahrzeugs, dadurch gekennzeichnet, dass sie ein elektronisches Modul nach einem der Ansprüche 1 bis 6 aufweist.
  8. Zündspule nach Anspruch 7, die ein Gehäuse (12), das eine erste Aufnahme (13) für einen elektrischen Transformator (14) bildet, und einen Kanal (17) für Mittel zur elektrischen Verbindung (18) mit einem Eingang einer Zündkerze aufweist, dadurch gekennzeichnet, dass das Gehäuse eine zweite Aufnahme (15) für das Modul zwischen der Aufnahme für den elektrischen Transformator und dem Kanal bildet.
  9. Zündspule nach Anspruch 8, dadurch gekennzeichnet, dass sie elastische Mittel (18) in dem Kanal aufweist, um eine elektrische Verbindung zwischen der Kappe (24) und dem Eingang einer Zündkerze zu gewährleisten.
  10. Zündspule nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, dass sie ein Isolierharz aufweist, das den elektrischen Transformator umhüllt und sich in Richtung des Kanals erstreckt.
  11. Zündspule nach einem der Ansprüche 7 bis 10, dadurch gekennzeichnet, dass sie ein Isolierharz (35) aufweist, das den elektrischen Transformator umhüllt und sich in Richtung des Kanals bis zur Trennwand (30) erstreckt.
  12. Zündspule nach einem der Ansprüche 7 bis 11, dadurch gekennzeichnet, dass sie elastische Mittel (20) zur elektrischen Verbindung zwischen dem Hochspannungsausgang des elektrischen Transformators und dem elektronischen Modul aufweist.
  13. Verfahren zur Herstellung einer Zündspule für einen Verbrennungsmotor insbesondere eines Kraftfahrzeugs, dadurch gekennzeichnet, dass es die Schritte aufweist, die darin bestehen:
    - ein elektronisches Modul (16) nach einem der Ansprüche 1 bis 6 herzustellen;
    - einen elektrischen Transformator (14) herzustellen;
    - ein Gehäuse (12) herzustellen, das eine erste Aufnahme (13) für den elektrischen Transformator, einen Kanal (17) für elektrische Verbindungsmittel mit einem Eingang einer Zündkerze, und eine zweite Aufnahme (15) für das Modul zwischen der Aufnahme für den elektrischen Transformator und dem Kanal bildet;
    - das elektronische Modul in der zweiten Aufnahme anzuordnen;
    - den elektrischen Transformator in der ersten Aufnahme anzuordnen;
    - eine elektrische Verbindung (20) zwischen dem Hochspannungsausgang des elektrischen Transformators und dem elektronischen Modul zu bilden;
    - ein Isolierharz (35) in die erste Aufnahme zu gießen, wobei das Harz sich ausgehend von einem Dichtungselement (30) des Moduls erstreckt und den elektrischen Transformator umhüllt;
    - das Isolierharz zu polymerisieren.
EP03737343A 2002-02-08 2003-02-06 Elektronisches modul für verbrennungsmotor-zündspule Expired - Lifetime EP1478846B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0201576 2002-02-08
FR0201576A FR2835886B1 (fr) 2002-02-08 2002-02-08 Module electronique pour bobine d'allumage de moteur a combustion interne
PCT/FR2003/000378 WO2003067078A1 (fr) 2002-02-08 2003-02-06 Module electronique pour bobine d'allumage de moteur a combustion interne

Publications (2)

Publication Number Publication Date
EP1478846A1 EP1478846A1 (de) 2004-11-24
EP1478846B1 true EP1478846B1 (de) 2007-11-28

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EP03737343A Expired - Lifetime EP1478846B1 (de) 2002-02-08 2003-02-06 Elektronisches modul für verbrennungsmotor-zündspule

Country Status (8)

Country Link
US (1) US20050161031A1 (de)
EP (1) EP1478846B1 (de)
JP (1) JP4376062B2 (de)
CN (1) CN100507261C (de)
AU (1) AU2003226864A1 (de)
DE (1) DE60317773T2 (de)
FR (1) FR2835886B1 (de)
WO (1) WO2003067078A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4209407B2 (ja) * 2005-05-19 2009-01-14 三菱電機株式会社 内燃機関用点火装置
KR100844553B1 (ko) * 2006-08-24 2008-07-08 현대자동차주식회사 엔진의 점화코일 어셈블리
CN104226849A (zh) * 2014-08-22 2014-12-24 重庆从仁机电有限公司 火花塞帽陶瓷电阻的加工方法
JP6537445B2 (ja) * 2015-11-26 2019-07-03 日立オートモティブシステムズ阪神株式会社 内燃機関用点火コイル
US10622140B2 (en) 2016-07-21 2020-04-14 Borgwarner Ludwigsburg Gmbh High voltage contact for an ignition coil
US10916370B2 (en) * 2018-03-09 2021-02-09 GM Global Technology Operations LLC Engine assembly with vibration-isolated ignition coil apparatus
JP2020056362A (ja) * 2018-10-03 2020-04-09 ダイヤモンド電機株式会社 内燃機関用点火コイル

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Publication number Priority date Publication date Assignee Title
FR2606833B1 (fr) * 1986-11-18 1989-02-24 Peugeot Dispositif d'allumage pour moteur a combustion
DE3732827A1 (de) * 1987-09-29 1989-04-06 Beru Werk Ruprecht Gmbh Co A Hochspannungs-zuendanlage
ES2057622T3 (es) * 1990-03-08 1994-10-16 Nippon Denso Co Bobina de encendido para un motor de combustion interna.
DE4117808C2 (de) * 1991-05-31 1994-09-22 Bosch Gmbh Robert Zündanlagen für Brennkraftmaschinen mit Hochspannungsschalter
JP2981702B2 (ja) * 1992-08-27 1999-11-22 愛三工業株式会社 内燃機関用点火コイル
US5419300A (en) * 1992-11-10 1995-05-30 Honda Giken Kogyo Kabushiki Kaisha Ignition coil unit with ignition voltage detective capacitor for internal combustion engine
JP3131669B2 (ja) * 1992-11-10 2001-02-05 本田技研工業株式会社 点火コイル一体結合型点火プラグキャップ
DE4318130A1 (de) * 1993-06-01 1994-12-08 Bosch Gmbh Robert Zündspule für Brennkraftmaschinen
DE19909211B4 (de) * 1998-03-24 2012-10-18 Pulse Gmbh Elektrische Stabzündspule
JP2000294434A (ja) * 1999-04-02 2000-10-20 Hanshin Electric Co Ltd 内燃機関用点火コイル
JP3708799B2 (ja) * 2000-06-15 2005-10-19 三菱電機株式会社 内燃機関用点火コイル
DE60009055T2 (de) * 2000-07-28 2005-02-17 Federal-Mogul Ignition S.R.L. Zündspule für Kraftfahrzeuge
US6374816B1 (en) * 2001-04-23 2002-04-23 Omnitek Engineering Corporation Apparatus and method for combustion initiation
JP4209400B2 (ja) * 2005-03-23 2009-01-14 三菱電機株式会社 内燃機関用点火装置

Also Published As

Publication number Publication date
JP4376062B2 (ja) 2009-12-02
WO2003067078A1 (fr) 2003-08-14
DE60317773T2 (de) 2008-12-24
DE60317773D1 (de) 2008-01-10
FR2835886A1 (fr) 2003-08-15
EP1478846A1 (de) 2004-11-24
FR2835886B1 (fr) 2004-11-12
CN100507261C (zh) 2009-07-01
CN1646803A (zh) 2005-07-27
AU2003226864A1 (en) 2003-09-02
US20050161031A1 (en) 2005-07-28
JP2005529263A (ja) 2005-09-29

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