EP1563520A1 - Etablissement d'un contact electrique entre des fils laques fins d'enroulements secondaires de bobines d'allumage - Google Patents

Etablissement d'un contact electrique entre des fils laques fins d'enroulements secondaires de bobines d'allumage

Info

Publication number
EP1563520A1
EP1563520A1 EP03762341A EP03762341A EP1563520A1 EP 1563520 A1 EP1563520 A1 EP 1563520A1 EP 03762341 A EP03762341 A EP 03762341A EP 03762341 A EP03762341 A EP 03762341A EP 1563520 A1 EP1563520 A1 EP 1563520A1
Authority
EP
European Patent Office
Prior art keywords
ignition coil
secondary winding
contact spring
contact
voltage outlet
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
EP03762341A
Other languages
German (de)
English (en)
Other versions
EP1563520B1 (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 EP1563520A1 publication Critical patent/EP1563520A1/fr
Application granted granted Critical
Publication of EP1563520B1 publication Critical patent/EP1563520B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/10—Connecting leads to windings
    • 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
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/2823—Wires
    • H01F27/2828—Construction of conductive connections, of leads
    • 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

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 outlet and a low-voltage outlet.
  • Ignition coils generate high voltage sparks.
  • this jumps over to its electrodes and thus ignites, for example, the uft-gasoline mixture of an internal combustion engine.
  • this spark plug is supplied with a high-voltage ignition coil.
  • a primary winding and a corresponding secondary winding are provided within the ignition coil. One end of the primary winding is coupled to an ignition starter switch, and the other end is connected to a so-called breaker.
  • the secondary winding that is to say the winding which is responsible for the generation of the ignition spark, is connected inside the ignition coil to one end of the primary winding, so that it is connected to ground.
  • the other end of the secondary winding is connected to the high-voltage outlet, which in turn is either connected to an ignition cable that leads to the spark plug or on which the spark plug is arranged directly.
  • the secondary winding itself consists of a thin wire, which is coated with a corresponding lacquer layer, in order to avoid contacting the individual wires when wrapping a specific carrier body or coil former. After the secondary windings have been wound on a carrier, the ends of the respective wires are contacted. For this purpose, thermal contacting methods are generally known, for example soldering or welding.
  • the object of the invention is to produce a connection arrangement between an ignition coil rod of an ignition coil and a secondary or primary winding which is inexpensive and easy to implement.
  • the contacting according to the invention is integrated into already existing components and that simple processes can thereby be reliably produced.
  • the "cold" contacting method proposed here has the advantage over the previous method that no additional system costs are necessary. Furthermore, assembly steps are reduced and a reduction in exclusion parts can also be recorded by the embodiment according to the invention.
  • Another important advantage of the invention is that no installation space has to be optimized to carry out the contacting. This means that there is no free space in the area of contacting e.g. must be kept for welding guns, soldering irons or the like.
  • the invention provides for a contact spring to be inserted via guide means, which slides over a nose-like element during its insertion process, so that the contact spring can initially be guided over the secondary winding without touching it.
  • contact elements On the side of the contact spring pointing towards the coil body, contact elements are provided which, during the snap process, press on the wires of the coil body provided with insulation and, by means of this snap process, cause the insulation to be broken at the corresponding contact points, so that electrical contact between the individual Wires of the bobbin and the contact spring can be produced.
  • Fig. 1 is a perspective view of an ignition coil with one side for the high voltage outlet and another side for the low voltage outlet;
  • FIG. 2 shows a sectional view through the ignition coil according to FIG. 1;
  • Fig. 3 is a perspective view of an ignition coil rod which is arranged in the ignition coil housing shown in Fig. 1;
  • Fig. 4 is a perspective view of the side of the low voltage outlet of an ignition coil
  • FIG. 5 shows a perspective view of the ignition coil rod, in particular on the side of the low-voltage outlet with a contact spring
  • FIG. 6 shows a perspective view of an enlarged illustration of the side of the low-voltage outlet of the ignition coil rod with a contact spring in the preassembly position
  • FIG. 7 shows a section through the ignition coil rod according to FIG. 5;
  • Fig. 8 is an enlarged view of the section of FIG. 7;
  • FIG. 9 shows a perspective view of the contact spring according to the invention for mounting on the side of the low-voltage outlet
  • the ignition coil 1 shows a perspective view of an ignition coil 1.
  • the ignition coil 1 comprises an ignition coil housing 2 and an ignition coil rod 3 arranged in the ignition coil housing 2. Furthermore, the ignition coil 1 has a side for a high-voltage outlet H and a side for the low-voltage outlet N.
  • the side of the low-voltage outlet N is provided in order to make contact with a power supply not shown in the drawing, the side of the high-voltage outlet H being provided for connection to an ignition cable or a spark plug (not shown in the drawing).
  • Fig. 2 the ignition coil 1 shown in Fig. 1 is shown in a sectional view; the areas shown are those which relate to the features of the invention which are essential to the invention and which are shown in more detail in the following figures.
  • FIGS. 1 and 2 shows the ignition coil rod 3, each with one side for the high-voltage outlet H and one side for the low-voltage outlet N, which can be inserted as a structural unit into the ignition coil housing 2 shown in FIGS. 1 and 2 immediately after its assembly.
  • FIG. 4 shows an enlarged representation of the side of the low-voltage outlet M of an ignition coil 1. It is provided that a wire is wound on a coil former 4, so that the secondary winding 5 provided here results. One end of the wire of the secondary winding 5 is attached to a so-called connecting post 6, from which the wire winds on the peripheral surface of the bobbin 4 and extends over a defined contact area. This contact area also serves as a contact area 7 for a contact spring 8 shown in FIGS. 5 to 9 for establishing an electrical contact between the secondary winding 5 and the contact spring 8 itself.
  • the contact spring 8 is pushed in the direction of arrow 9 according to FIG. 8 over guide means 10.
  • the contact spring 8 slides along a surface 11 of the ignition coil rod 3 until it is a nose-like Element 12 reached.
  • the contact spring 8 slides further on this nose-like element 12, so that it is guided at a distance from the coil former 4 shown in FIG. 8 or at a distance from the secondary winding 5.
  • the nose-like element 12 penetrates an opening 13 of the contact spring 8 shown in FIGS. 9 and 10, so that the underside 14 of the contact spring 8 lies completely on the secondary winding 5.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)

Abstract

L'invention concerne un système de connexion électrique pour produire une bobine d'allumage, ce système étant destiné à remplacer les procédés classiques d'établissement de contact entre des fils laqués fins dans des bobines d'allumage, tels que les procédés thermiques. Selon l'invention, une lame de contact (8) placée du côté de la sortie basse tension (N) est, lors du montage, guidée sans contact au-dessus d'enroulements secondaires correspondants et se bloque par encliquetage du fait de son caractère élastique ou de sa disposition. Des éléments situés sur la lame de contact (8) percent une couche isolante entourant l'enroulement secondaire, ce qui permet d'obtenir une connexion électrique sans avoir recours à des procédés thermiques.
EP20030762341 2002-11-07 2003-07-25 Etablissement d'un contact electrique entre des fils laques fins d'enroulements secondaires de bobines d'allumage Expired - Lifetime EP1563520B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10251841A DE10251841A1 (de) 2002-11-07 2002-11-07 Elektrische Kontaktierung dünner Lackdrähte von Sekundärwicklungen von Zündspulen
DE10251841 2002-11-07
PCT/DE2003/002513 WO2004042749A1 (fr) 2002-11-07 2003-07-25 Etablissement d'un contact electrique entre des fils laques fins d'enroulements secondaires de bobines d'allumage

Publications (2)

Publication Number Publication Date
EP1563520A1 true EP1563520A1 (fr) 2005-08-17
EP1563520B1 EP1563520B1 (fr) 2015-05-20

Family

ID=32115336

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030762341 Expired - Lifetime EP1563520B1 (fr) 2002-11-07 2003-07-25 Etablissement d'un contact electrique entre des fils laques fins d'enroulements secondaires de bobines d'allumage

Country Status (5)

Country Link
US (1) US7305751B2 (fr)
EP (1) EP1563520B1 (fr)
JP (1) JP4575164B2 (fr)
DE (1) DE10251841A1 (fr)
WO (1) WO2004042749A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE102011082230A1 (de) 2011-04-28 2012-10-31 Robert Bosch Gmbh Elektrische Verbindungsanordnung für eine Zündspule
DE102012212617A1 (de) 2012-07-18 2014-01-23 Robert Bosch Gmbh Elektrische Verbindungsanordnung für eine Zündspule
ITUB20169987A1 (it) * 2016-01-14 2017-07-14 Tyco Electronics Amp Italia Srl Connettore per bobina magnetica
CN111430130B (zh) * 2020-05-07 2021-02-05 扬州硕宇高压电气有限公司 便于清洁导电杆以及制造方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3533054A (en) * 1968-01-11 1970-10-06 United Carr Inc Electrical terminal structure
US4721935A (en) * 1984-03-28 1988-01-26 General Electric Company Bobbins coils with terminal housing
JPH0625945Y2 (ja) * 1988-08-05 1994-07-06 東洋電装株式会社 エンジンの点火コイル
JPH0625947Y2 (ja) * 1988-08-29 1994-07-06 東洋電装株式会社 エンジンの点火コイル
JPH0745942Y2 (ja) * 1990-04-28 1995-10-18 東洋電装株式会社 エンジンの点火コイル装置
EP0827165B1 (fr) * 1996-08-31 2001-06-13 Toyo Denso Kabushiki Kaisha Dispositif de bobine d'allumage pour moteur
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
JP3421945B2 (ja) * 1998-07-07 2003-06-30 ティーディーケイ株式会社 巻線型面実装電子部品及びその製造方法
US6724289B2 (en) * 2001-08-17 2004-04-20 Delphi Technologies, Inc. Ignition apparatus having feature for shielding the HV terminal
DE10251840A1 (de) * 2002-11-07 2004-05-19 Robert Bosch Gmbh Elektrische Kontaktierung dünner Lackdrähte von Sekundärwicklungen von Zündspulen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004042749A1 *

Also Published As

Publication number Publication date
DE10251841A1 (de) 2004-05-19
WO2004042749A1 (fr) 2004-05-21
JP4575164B2 (ja) 2010-11-04
EP1563520B1 (fr) 2015-05-20
JP2006505925A (ja) 2006-02-16
US7305751B2 (en) 2007-12-11
US20060211292A1 (en) 2006-09-21

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