EP1580771A2 - Bobine d'allumage et méthode pour la fabriquer - Google Patents

Bobine d'allumage et méthode pour la fabriquer Download PDF

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Publication number
EP1580771A2
EP1580771A2 EP05001212A EP05001212A EP1580771A2 EP 1580771 A2 EP1580771 A2 EP 1580771A2 EP 05001212 A EP05001212 A EP 05001212A EP 05001212 A EP05001212 A EP 05001212A EP 1580771 A2 EP1580771 A2 EP 1580771A2
Authority
EP
European Patent Office
Prior art keywords
hollow cylinder
ignition coil
housing
edges
windings
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.)
Withdrawn
Application number
EP05001212A
Other languages
German (de)
English (en)
Other versions
EP1580771A3 (fr
Inventor
Francesco Tridico
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.)
BorgWarner Ludwigsburg GmbH
Original Assignee
Beru AG
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 Beru AG filed Critical Beru AG
Publication of EP1580771A2 publication Critical patent/EP1580771A2/fr
Publication of EP1580771A3 publication Critical patent/EP1580771A3/fr
Withdrawn legal-status Critical Current

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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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
    • H01F27/266—Fastening or mounting the core on casing or support
    • 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
    • H01F2038/122—Ignition, e.g. for IC engines with rod-shaped core

Definitions

  • the invention relates to an ignition coil for an internal combustion engine, formed in the manner of a candle shaft ignition coil is and a cylindrical housing made of a plastic material, a housing arranged in the hollow cylinder of a electrically conductive sheet material and primary and secondary windings has, which are arranged in the hollow cylinder.
  • the housing which serves as a carrier for the internal components of the ignition coil, made by injection molding of a plastic material.
  • the hollow cylinder which consists of an electrically conductive sheet material, in particular an electrical sheet and as magnetic Inference serves is made by rolling and in the manufacture of the ignition coil in, by injection molding prefabricated housing mounted.
  • Another problem is the assembly of the hollow cylinder in prefabricated empty plastic housing.
  • the object underlying the invention is therefore therein, an ignition coil of the type mentioned and a To provide processes for their preparation in which the above mentioned assembly problems in the production no longer occur and in particular damage to the paint insulation of Wires of the windings during their installation in the hollow cylinder can be avoided.
  • the inventive method for producing such Ignition coil is characterized by the fact that before installation the windings of the hollow cylinder in an injection mold inserted and overmolded with the housing.
  • Ignition coil which is designed in the manner of a plug shaft ignition coil is, from a cylindrical housing 1 made of a plastic material, which is produced by injection molding, a Hollow cylinder 2 made of an electric sheet, the magnetic Conclusion forms and is made by rolling, wherein the hollow cylinder 2 in the housing 1 and on the inside thereof is mounted, and the inner, not shown Components of the ignition coil, in particular the primary and secondary windings.
  • the hollow cylinder 2 is in particular of several preferably two or three layers of an electric sheet running to To keep eddy current losses as low as possible.
  • the ignition coil described above and shown in Fig. 2 according to the invention is prepared by a method at before the installation of the windings of the hollow cylinder 2 in a Injection mold is inserted and molded with the housing 1.
  • this method can have a corresponding shaping of the injection mold can be achieved that the plastic mass all edges 3 of the hollow cylinder 1 in the illustrated in Fig. 2 Wrapped in a manner so that no danger to them Lackisolation of the winding wires when installing the windings especially the outer winding goes out.
  • Another advantage is that they have been common until now related protective devices, such as protective films, which are arranged above the primary winding, no longer needed become.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
EP05001212A 2004-03-26 2005-01-21 Bobine d'allumage et méthode pour la fabriquer Withdrawn EP1580771A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410014934 DE102004014934B3 (de) 2004-03-26 2004-03-26 Zündspule und Verfahren zu ihrer Herstellung
DE102004014934 2004-03-26

Publications (2)

Publication Number Publication Date
EP1580771A2 true EP1580771A2 (fr) 2005-09-28
EP1580771A3 EP1580771A3 (fr) 2006-04-19

Family

ID=34854071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05001212A Withdrawn EP1580771A3 (fr) 2004-03-26 2005-01-21 Bobine d'allumage et méthode pour la fabriquer

Country Status (2)

Country Link
EP (1) EP1580771A3 (fr)
DE (1) DE102004014934B3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004014934B3 (de) 2004-03-26 2005-12-08 Beru Ag Zündspule und Verfahren zu ihrer Herstellung

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0898289A2 (fr) * 1997-08-07 1999-02-24 Sumitomo Wiring Systems, Ltd. Bobine d'allumage comprenant un aimant en forme de tore
DE102004014934B3 (de) 2004-03-26 2005-12-08 Beru Ag Zündspule und Verfahren zu ihrer Herstellung

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4446716C1 (de) * 1994-12-16 1996-10-24 Aeg Tro Transformatoren Gmbh Isolieranordnung für magnetische Abschirmungen der Kesselwände von Transformatoren und Drosselspulen
JPH10199737A (ja) * 1996-11-18 1998-07-31 Matsushita Electric Ind Co Ltd 内燃機関の点火コイル装置
DE19702438C2 (de) * 1997-01-24 1999-05-06 Bremicker Auto Elektrik Stabzündspule für Brennkraftmaschinen
DE29805372U1 (de) * 1998-03-25 1999-08-05 Robert Bosch Gmbh, 70469 Stuttgart Stabspule für Zündanlagen
DE10257101B3 (de) * 2002-12-05 2004-05-19 Robert Bosch Gmbh Stabzündspule

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0898289A2 (fr) * 1997-08-07 1999-02-24 Sumitomo Wiring Systems, Ltd. Bobine d'allumage comprenant un aimant en forme de tore
DE102004014934B3 (de) 2004-03-26 2005-12-08 Beru Ag Zündspule und Verfahren zu ihrer Herstellung

Also Published As

Publication number Publication date
EP1580771A3 (fr) 2006-04-19
DE102004014934B3 (de) 2005-12-08

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