EP1563519B1 - Mise en contact electrique de fils laques fins d'enroulements secondaires de bobines d'allumage - Google Patents

Mise en contact electrique de fils laques fins d'enroulements secondaires de bobines d'allumage Download PDF

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Publication number
EP1563519B1
EP1563519B1 EP03761368.4A EP03761368A EP1563519B1 EP 1563519 B1 EP1563519 B1 EP 1563519B1 EP 03761368 A EP03761368 A EP 03761368A EP 1563519 B1 EP1563519 B1 EP 1563519B1
Authority
EP
European Patent Office
Prior art keywords
contact
ignition coil
secondary winding
connecting arrangement
arrangement according
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
EP03761368.4A
Other languages
German (de)
English (en)
Other versions
EP1563519A1 (fr
Inventor
Klaus Lerchenmueller
Konstantin Lindenthal
Thomas Breckle
Juergen Raedler
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 EP1563519A1 publication Critical patent/EP1563519A1/fr
Application granted granted Critical
Publication of EP1563519B1 publication Critical patent/EP1563519B1/fr
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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/04—Arrangements of electric connections to coils, e.g. leads
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2495—Insulation penetration combined with permanent deformation of the contact member, e.g. crimping

Definitions

  • the invention relates to an electrical connection arrangement for producing an ignition coil, in particular a pencil ignition coil with an ignition coil rod with a high voltage output.
  • Ignition coils generate high voltage sparks. This jumps at the arranged on the ignition coil spark plug at the electrodes and thus ignites, for example, the air-fuel mixture of an internal combustion engine. As a rule, this spark plug is supplied with an ignition coil with high voltage.
  • a primary winding and a corresponding secondary winding is provided within the ignition coil. The primary winding is coupled at one end to an ignition starter switch, with its other end connected to a so-called breaker.
  • the secondary winding ie the winding which is responsible for the formation of the spark, is connected inside the ignition coil to one end of the primary winding, so that it is grounded.
  • the other end of the secondary winding is connected to the high voltage output, which in turn is either connected to an ignition cable leading to the spark plug, or to which the spark plug is located directly.
  • the secondary winding itself consists of a thin wire, which is coated with a corresponding lacquer layer in order to avoid the contacting of the individual wires during the winding of a specific carrier body or bobbin. After the secondary windings are wound on a carrier, the ends of the respective wires are contacted.
  • thermal contacting methods are generally known, for example soldering or welding.
  • EP 837 418 discloses the preamble of claim 1.
  • the object of the invention is to produce a connection arrangement with the features of claim 1 between an ignition coil rod of an ignition coil and a secondary or primary winding, which is inexpensive and easy to implement.
  • the basic principle of the solution of the problem is to replace the known from the prior art thermal bonding method. This is achieved in that additional contacting elements have been created, which break during assembly coated with lacquer wire of the secondary winding and thus bring about a corresponding contact.
  • the "cold" contacting method proposed here has the advantage over the previous method that no additional system costs are necessary. Furthermore, additional assembly steps are reduced and also a reduction of exclusion parts can be recorded by the embodiment according to the invention.
  • Another essential advantage of the invention is that no space must be optimized for carrying out the contacting. This means that there is no free space in the area of contacting e.g. must be kept for welding tongs, soldering iron or the like.
  • this contact sleeve On its outer circumference, this contact sleeve on contact tabs, which, after the contact sleeve is pushed onto the bobbin, contact the wire of the secondary winding by their spring-like configuration in which the contact tab of the contact sleeve, the insulation, for example, a lacquer of the wires of the secondary winding breaks.
  • the contact sleeve is to lead over the bobbin so far until it abuts against a stop which is formed on an ignition coil rod. Damage or displacement of the secondary wire is prevented in that the diameter of the contact sleeve is greater than or at least equal to the diameter of the secondary body and twice the wire diameter.
  • the ignition coil rod is By inserting into a cup-like design is achieved that the contact tabs press on the winding of the secondary winding and break through the insulating layer of the wire, so that a permanent electrical contact will be produced.
  • the free end of the winding of the secondary wire is preferably wound over a pin-like formation located at the end of the ignition coil rod. This pin then plunges into the high voltage outlet. This prevents that due to field overshoots at the wire end it comes to failure of the ignition coil.
  • a space-saving alternative provides that the pin-like design of the ignition coil rod has predetermined breaking points. As a result, during the assembly process of the module, the pin breaks in the ignition coil housing on the high-voltage output side, specifically in such a way that, despite the break, contact is ensured.
  • Fig. 1 a perspective view of an ignition coil is shown.
  • the ignition coil 1 comprises an ignition coil housing 2 and an ignition coil rod 3 arranged in the ignition coil housing 2. Further, the ignition coil 1 has a high voltage output H side and a low voltage output N side.
  • the low voltage output N side is designed to make contact with a power supply not shown in the drawing, with the high voltage output H side being provided for connection to an ignition wire or spark plug not shown in the drawing.
  • Fig. 2 is the in Fig. 1 shown ignition coil 1 shown in a sectional view; the areas shown are those which relate to the invention essential features of the invention, which are shown in more detail in the following figures.
  • a contacting region 20 (FIG. Fig. 3 ) is provided, which provides on a bobbin 21, the arrangement of a secondary winding 22. After completion of the winding of the secondary wire 22, this is passed through a bore 23 in the Mixier Scheme 20 and further wound until it enters a groove 24 and a pin 25. At the pin 25, the free end of the secondary wire 22 is tied.
  • This contact sleeve 26 has at least one preferably not extending over the entire length axial slot 27.
  • at least one contact tab 28 is provided on the peripheral surface of the contact sleeve 26, which are provided for making a contact with the secondary winding 22 in the contacting region 20 on the side of the high voltage output H.
  • the contact sleeve 26 is now guided on the side of the high voltage outlet H to a stop 29 due to the axial slot 27 via the Kunststoffier Scheme 20 of the ignition coil 3.
  • the expansion of the contact sleeve 26 during the Aufschiebevorganges prevents the secondary winding 22 is damaged on the side of the high-voltage outlet H in any way.
  • the contact sleeve 26 is designed such that it reaches an interference fit immediately after the coating over the Kunststoffier Anlagen, so that it is prevented that the contact sleeve 26 drops again.
  • This assembly formed from ignition coil rod 3 and contact sleeve 26, is now, as in Fig. 4 shown mounted in the high voltage H output of the ignition coil housing 2.
  • the ignition coil housing 2 has a cup-like design 30 for receiving the free end of the ignition coil rod 3.
  • a recess 31 is provided to receive the pin 25 of the ignition coil rod 3.
  • the cup-like design 30 of the ignition coil housing 2 ensures that the contact lugs 28 of the contact sleeve 26 are defined in the direction of an arrow 32 (FIG. Fig. 4 ).
  • the insulation layer of the secondary wire 22 is broken and permanently made an electrical contact.

Landscapes

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

Claims (7)

  1. Agencement de connexion électrique d'une bobine d'allumage crayon avec un crayon de bobine d'allumage, laquelle présente une sortie haute tension ainsi qu'une sortie basse tension, une douille de contact (26) au moins en partie fendue dans la direction longitudinale étant prévue du côté de la sortie haute tension (H), laquelle coopère par son côté interne avec un corps de bobine (21) avec un enroulement secondaire (22) au moins par une région de contact (20) et est repliée par-dessus cette région de contact (20), la douille de contact (26) présentant au moins une patte de contact (28) qui présente, du côté tourné vers le corps de bobine (21), un élément de contact et qui perce une couche d'isolation entourant l'enroulement secondaire et vient en contact avec celui-ci, caractérisé en ce que le boîtier de bobine d'allumage (2) présente une réalisation de type godet (30) pour recevoir une extrémité du crayon de bobine d'allumage, la réalisation de type godet (30) étant disposée de telle sorte que l'au moins une patte de contact (28) de la douille de contact (26) presse contre l'enroulement secondaire (22) dans la direction radiale (32) de telle sorte que la couche d'isolation entourant l'enroulement secondaire (22) soit percée.
  2. Agencement de connexion selon la revendication 1, caractérisé en ce que la douille de contact (26) est disposée avec un ajustement serré par-dessus la région de contact (20).
  3. Agencement de connexion selon la revendication 1 ou 2, caractérisé en ce que la douille de contact (26) peut être déformée élastiquement.
  4. Agencement de connexion selon au moins l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins une patte de contact (28) est prévue au niveau de la douille de contact (26), les pattes de contact s'appliquant contre la région de contact (20) dans l'état monté dans le boîtier de bobine d'allumage (2) par coopération avec le boîtier de bobine d'allumage (2) et établissant une connexion électrique.
  5. Agencement de connexion selon au moins l'une quelconque des revendications précédentes, caractérisé en ce que l'extrémité de la sortie haute tension (H) du crayon de bobine d'allumage (3) présente une broche (25) qui, dans l'état monté, vient en prise dans un évidement (31) du côté du boîtier de bobine d'allumage (2) de la bobine d'allumage (1).
  6. Agencement de connexion selon la revendication 5, caractérisé en ce que la broche (25) est prévue pour l'enroulement d'une extrémité de l'enroulement secondaire (22).
  7. Agencement de connexion selon la revendication 5, caractérisé en ce que la broche (25) présente au moins un point destiné à la rupture.
EP03761368.4A 2002-11-07 2003-07-03 Mise en contact electrique de fils laques fins d'enroulements secondaires de bobines d'allumage Expired - Lifetime EP1563519B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10251840A DE10251840A1 (de) 2002-11-07 2002-11-07 Elektrische Kontaktierung dünner Lackdrähte von Sekundärwicklungen von Zündspulen
DE10251840 2002-11-07
PCT/DE2003/002234 WO2004042748A1 (fr) 2002-11-07 2003-07-03 Mise en contact electrique de fils laques fins d'enroulements secondaires de bobines d'allumage

Publications (2)

Publication Number Publication Date
EP1563519A1 EP1563519A1 (fr) 2005-08-17
EP1563519B1 true EP1563519B1 (fr) 2015-06-17

Family

ID=32115335

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03761368.4A Expired - Lifetime EP1563519B1 (fr) 2002-11-07 2003-07-03 Mise en contact electrique de fils laques fins d'enroulements secondaires de bobines d'allumage

Country Status (5)

Country Link
US (1) US7075400B2 (fr)
EP (1) EP1563519B1 (fr)
JP (1) JP4411214B2 (fr)
DE (1) DE10251840A1 (fr)
WO (1) WO2004042748A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10251841A1 (de) * 2002-11-07 2004-05-19 Robert Bosch Gmbh Elektrische Kontaktierung dünner Lackdrähte von Sekundärwicklungen von Zündspulen
DE102005047184A1 (de) * 2005-09-30 2007-04-05 Robert Bosch Gmbh Zündspule für eine Brennkraftmaschine
DE102006020170A1 (de) 2006-05-02 2007-11-08 Robert Bosch Gmbh Zündspule, insbesondere für eine Brennkraftmaschine eines Kraftfahrzeugs
ITUB20169987A1 (it) * 2016-01-14 2017-07-14 Tyco Electronics Amp Italia Srl Connettore per bobina magnetica
IT201700075884A1 (it) * 2017-07-06 2019-01-06 Tyco Electronics Amp Italia Srl Connettore elettrico
JP7189168B2 (ja) * 2020-02-07 2022-12-13 株式会社藤商事 遊技機

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3830763C2 (de) * 1988-09-09 1998-04-09 Siemens Ag Elektrische Verbindungsvorrichtung
DE69720047T2 (de) * 1996-08-31 2003-09-04 Toyo Denso Kk Zündspulenvorrichtung für Verbrennungsmotor
JP3473817B2 (ja) * 1996-10-18 2003-12-08 株式会社デンソー 内燃機関用点火コイル
US6522232B2 (en) * 2001-04-26 2003-02-18 Delphi Technologies, Inc. Ignition apparatus having reduced electric field HV terminal arrangement
US6724289B2 (en) * 2001-08-17 2004-04-20 Delphi Technologies, Inc. Ignition apparatus having feature for shielding the HV terminal
JP3997463B2 (ja) * 2001-11-26 2007-10-24 株式会社デンソー 内燃機関用点火コイル

Also Published As

Publication number Publication date
WO2004042748A1 (fr) 2004-05-21
US20060097834A1 (en) 2006-05-11
DE10251840A1 (de) 2004-05-19
US7075400B2 (en) 2006-07-11
JP2006505924A (ja) 2006-02-16
EP1563519A1 (fr) 2005-08-17
JP4411214B2 (ja) 2010-02-10

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