EP0143023B1 - Bride de maintien du circuit magnétique d'une bobine d'allumage pour véhicule automobile et procédé d'obtention d'une telle bride - Google Patents

Bride de maintien du circuit magnétique d'une bobine d'allumage pour véhicule automobile et procédé d'obtention d'une telle bride Download PDF

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Publication number
EP0143023B1
EP0143023B1 EP19840401999 EP84401999A EP0143023B1 EP 0143023 B1 EP0143023 B1 EP 0143023B1 EP 19840401999 EP19840401999 EP 19840401999 EP 84401999 A EP84401999 A EP 84401999A EP 0143023 B1 EP0143023 B1 EP 0143023B1
Authority
EP
European Patent Office
Prior art keywords
magnetic circuit
tongue
lugs
strap
sheets
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
Application number
EP19840401999
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0143023A1 (fr
Inventor
Jean Claude Bonnefoy
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.)
Ducellier et Cie
Original Assignee
Ducellier et Cie
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 Ducellier et Cie filed Critical Ducellier et Cie
Publication of EP0143023A1 publication Critical patent/EP0143023A1/fr
Application granted granted Critical
Publication of EP0143023B1 publication Critical patent/EP0143023B1/fr
Expired 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
    • 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
    • H01F27/263—Fastening parts of the core together

Definitions

  • the present invention relates to a clamp for holding the magnetic circuit of an ignition coil, in particular for a motor vehicle of the type known as a closed circuit generally constituted by two packs of stacked exposed sheets, of complementary shapes and held face to face by mechanical means. of connection and maintenance.
  • Such magnetic circuits may have a rectangular parallelepiped external shape, the apparent outline of which is defined by the four edges of the parallelepiped must be protected from the action of shocks and external aggressive agents.
  • the object of the present invention is to avoid these drawbacks while ensuring positive protection of the magnetic circuit.
  • the means for protecting the sheets simultaneously maintain them also.
  • These means are constituted by a metal band enveloping the four edges of the magnetic circuit and comprising two symmetrical and complementary flanges 3 and 4 obtained from a blank of galvanized sheet.
  • flanges 3 and 4 are each obtained during a same cutting operation with complementary locking means formed at one end by a tongue 5 and at the other end a clip constituted by two legs 6 separated by a recess 7 correspond cutting and spacing the legs 6.
  • the flanges 3 and 4 are folded longitudinally in the form of a gutter according to the thickness of the sheet metal packages 1 and 2 then the ends are folded down substantially at right angles to different lengths so as to define between them a length corresponding to that of one side of the parallelogram.
  • each flange 3,4 thus formed is then slipped one of the packets of sheets 1, 2.
  • the two sets 1, 3 and 2,4 formed by a flange and a packet of sheets are presented face to face, the tongue 5 a flange slid between the tabs 6 of the clip of the other flange.
  • the tabs 6 are then folded down and stamp the corresponding part of the tongue 5 in the recess 7.
  • the strapping to a spreader limited to two flange sheet thicknessers.
  • the cheeks 3a and 4c of the gutters are well pressed against the sides of the outer sheets of the packets of sheets 1 and 2.
  • the embodiment shown in Figure 4 differs essentially from the previous in that the strapping is obtained from a single flange 9 obtained as previously by cutting a metal blank, subsequently shaped around the packets of sheets 1 and 2 to be assembled, months of which the locking means, identical in the foregoing, are arranged at each end and 9b of the single flange 9 to close it on itself, preferably on top of the magnetic circuit, for a single locking operation.
  • tongue 5 can be straight in shape as shown, but can also end in T.
  • an effective clamping and tightening of the sheets is thus obtained so as to suppress the noise of the magnetic circuit, a mechanical protection of the sheet edges against corrosion and oxidation, with a space requirement at the level of the stapling limited to two thicknesses of flange plate.
  • Such a realization also has the advantage of requiring only a single cutting tool in both cases and of ensuring significant guidance of the sheet metal packages during assembly thanks to more contact plane.
  • stapling means are given by way of example but that they could be replaced, if necessary, by hinges or dovetail systems, for example each flange comprising the complementary locking means of in addition, the material used could be bichromated zinc-plated sheet or material with equivalent properties.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Non-Reversible Transmitting Devices (AREA)
  • Connection Of Plates (AREA)
  • Manufacturing Cores, Coils, And Magnets (AREA)
  • Package Frames And Binding Bands (AREA)
  • Clamps And Clips (AREA)
EP19840401999 1983-11-24 1984-10-05 Bride de maintien du circuit magnétique d'une bobine d'allumage pour véhicule automobile et procédé d'obtention d'une telle bride Expired EP0143023B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8318703A FR2555671B1 (fr) 1983-11-24 1983-11-24 Circuit magnetique pour bobine d'allumage
FR8318703 1983-11-24

Publications (2)

Publication Number Publication Date
EP0143023A1 EP0143023A1 (fr) 1985-05-29
EP0143023B1 true EP0143023B1 (fr) 1987-09-23

Family

ID=9294465

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840401999 Expired EP0143023B1 (fr) 1983-11-24 1984-10-05 Bride de maintien du circuit magnétique d'une bobine d'allumage pour véhicule automobile et procédé d'obtention d'une telle bride

Country Status (9)

Country Link
EP (1) EP0143023B1 (pt)
BG (1) BG41479A3 (pt)
DE (1) DE3466449D1 (pt)
ES (1) ES288115Y (pt)
FR (1) FR2555671B1 (pt)
HU (1) HU190656B (pt)
PT (1) PT79401B (pt)
RO (1) RO91030B (pt)
YU (1) YU196584A (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3727458A1 (de) * 1987-08-18 1989-03-02 Bayerische Motoren Werke Ag Zuendeinheit fuer verbrennungsmotoren
US5861792A (en) * 1993-02-19 1999-01-19 Matsushita Electric Industrial Co., Ltd. Coil component and method of stamping iron core used therefor

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959033C (de) * 1952-05-16 1957-02-28 Gen Electric Drosselspule mit einem Mantelkern
FR1180873A (fr) * 1956-08-06 1959-06-10 American Mach & Foundry Inducteur électromagnétique
DE1192759B (de) * 1958-07-24 1965-05-13 Siemens Ag Schnittbandkern aus mehreren Teilkernen
US3348276A (en) * 1965-10-01 1967-10-24 Automatic Elect Lab Core cup retaining device
US4024486A (en) * 1975-07-14 1977-05-17 General Electric Company Outer locking turn for precut core
FR2438327A1 (fr) * 1978-07-03 1980-04-30 Gantar Janez Mecanisme de montage et de serrage des noyaux de transformateurs et autres composants analogues

Also Published As

Publication number Publication date
PT79401A (fr) 1984-11-01
RO91030A (ro) 1987-04-30
DE3466449D1 (en) 1987-10-29
PT79401B (fr) 1986-08-28
FR2555671A1 (fr) 1985-05-31
YU196584A (en) 1986-10-31
RO91030B (ro) 1987-05-01
ES288115Y (es) 1986-08-01
HUT36900A (en) 1985-10-28
BG41479A3 (en) 1987-06-15
ES288115U (es) 1986-01-01
EP0143023A1 (fr) 1985-05-29
HU190656B (en) 1986-10-28
FR2555671B1 (fr) 1986-04-25

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