EP0878809A2 - Bobine d'allumage - Google Patents

Bobine d'allumage Download PDF

Info

Publication number
EP0878809A2
EP0878809A2 EP98102664A EP98102664A EP0878809A2 EP 0878809 A2 EP0878809 A2 EP 0878809A2 EP 98102664 A EP98102664 A EP 98102664A EP 98102664 A EP98102664 A EP 98102664A EP 0878809 A2 EP0878809 A2 EP 0878809A2
Authority
EP
European Patent Office
Prior art keywords
winding
ignition coil
wire
piece
wire piece
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Withdrawn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
EP98102664A
Other languages
German (de)
English (en)
Other versions
EP0878809A3 (fr
Inventor
Nikolaus Hautmann
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 EP0878809A2 publication Critical patent/EP0878809A2/fr
Publication of EP0878809A3 publication Critical patent/EP0878809A3/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Withdrawn legal-status Critical Current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
    • 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
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/12—Ignition, e.g. for IC engines

Definitions

  • the invention relates to an ignition coil, in particular for an ignition system in an internal combustion engine according to the Genus of claim 1.
  • DE 33 09 986 C2 is a Ignition coil with an ignition unit consisting of a primary part and a secondary part is known.
  • the contact part has one with respect to the longitudinal axis protruding radially and two feather lobes that face each other from the Contact part are notched. When it is attached to the The two spring lobes act as barbs and bumps thus secure the functional position of the contact part on the Plate.
  • the hump reaches into a recess in the Contact part, whereby its assignment to the contact carrier of the Secondary part is set.
  • the ignition coil according to the invention with the characteristic features of claim 1 has the advantage that the previously mentioned shortcomings in satisfactory Dimensions are avoided.
  • This piece of wire can be taken directly from a wire reel supplied and generated by cutting.
  • With attaching at least one bend by an easy to perform Bending process and an injection of the so shaped Piece of wire in the winding carrier is an electrical one Created connection that is stable, a simple, low-mass Has training and are inexpensive to manufacture can because there is no tool investment for a punch and a subsequent assembly of the contact part not applicable.
  • the connection is even at high speeds Functionally reliable winding carrier during the winding, because that Wire piece due to the low mass only small acceleration forces developed and therefore also with this Does not release load from winding carrier.
  • An embodiment of the invention is in the drawing shown and explained in more detail in the figure description.
  • An electrical connection formed with a piece of wire a winding support of a secondary part of an ignition coil is in perspective view in Figure 1 and in Figure 2 shown in a sectional view.
  • An ignition coil 11, in particular for an ignition system in an internal combustion engine, has an ignition unit 12, which in a known manner a primary part and a secondary part 13 contains.
  • a secondary bobbin designed as a winding support 14 14 shown in the approach.
  • the secondary bobbin 14 is in its basic form essentially a hollow cylindrical one Body with a longitudinal axis 16.
  • the outer surface of the Secondary bobbin 14 is forming winding chambers 17 designed to accommodate a secondary winding in stages.
  • connection 18 has a contact part 19, which by a Wire piece 21 is embodied.
  • the wire piece 21 In contrast to the wire of the The secondary winding is the wire piece 21 as a solid rigid wire executed.
  • the cross-sectional area of the wire piece 21 is square and has a corrugation 22 which, based on the longitudinal course, is mounted transversely. Alternatively, the cross-sectional area can also take the form of a Circle or, based on the square version, one Have polygons. The cross-sectional area can also be formed and the corrugation 22 over the longitudinal course of the wire piece 21 different or the corrugation 22 entirely be left out.
  • the wire piece 21 has a central part in the Figure 2 visible right-angled bend 23.
  • This Angle 23 belongs to a partial length of the piece of wire 21, via which the piece of wire 21 on an end face 24 of the Secondary bobbin 14 is injected into this, so that a free end 26 and a second one at each end free end 27 protrudes from the secondary bobbin 14.
  • the second free end 27 runs parallel to the longitudinal axis 16 of the secondary bobbin 14.
  • the injection of the Wire piece 21 over the partial length is done in a conventional manner Way, by the wire piece 21 as an insert in a Injection mold is inserted into the secondary coil body 14 produced by a plastic injection molding process becomes.
  • a magazine on a roll Wire inserted into the tool, bent here and to the Wire piece 21 cut to length and then extrusion-coated.
  • Such a connector 18 is simple producible and can be cost-effective without functional disadvantages are manufactured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
EP98102664A 1997-05-17 1998-02-17 Bobine d'allumage Withdrawn EP0878809A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29708832U 1997-05-17
DE29708832U DE29708832U1 (de) 1997-05-17 1997-05-17 Zündspule

Publications (2)

Publication Number Publication Date
EP0878809A2 true EP0878809A2 (fr) 1998-11-18
EP0878809A3 EP0878809A3 (fr) 1999-03-31

Family

ID=8040522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98102664A Withdrawn EP0878809A3 (fr) 1997-05-17 1998-02-17 Bobine d'allumage

Country Status (2)

Country Link
EP (1) EP0878809A3 (fr)
DE (1) DE29708832U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022037946A1 (fr) * 2020-08-21 2022-02-24 Berkenhoff Gmbh Montant d'enroulement destiné à être relié à un corps de bobine d'une bobine électromagnétique

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1226209B (de) * 1964-02-01 1966-10-06 Telefunken Patent Spulenfuss mit Loetstiften fuer eine elektrische Spule kleiner Abmessung
DE2612582C3 (de) * 1976-03-24 1978-11-30 Siemens Ag, 1000 Berlin Und 8000 Muenchen Verfahren zur Herstellung eines Spulenkörpers mit eingespritzten Anschlußstiften
JPH054269Y2 (fr) * 1986-12-26 1993-02-02

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022037946A1 (fr) * 2020-08-21 2022-02-24 Berkenhoff Gmbh Montant d'enroulement destiné à être relié à un corps de bobine d'une bobine électromagnétique
US20230307172A1 (en) * 2020-08-21 2023-09-28 Berkenhoff Gmbh Winding post for connecting to a coil body of an electromagnetic coil

Also Published As

Publication number Publication date
EP0878809A3 (fr) 1999-03-31
DE29708832U1 (de) 1998-09-17

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