EP0609109B1 - Spulenkörper für Sekundärwicklung einer Zündspule für Brennkraftmaschine - Google Patents

Spulenkörper für Sekundärwicklung einer Zündspule für Brennkraftmaschine Download PDF

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Publication number
EP0609109B1
EP0609109B1 EP94400034A EP94400034A EP0609109B1 EP 0609109 B1 EP0609109 B1 EP 0609109B1 EP 94400034 A EP94400034 A EP 94400034A EP 94400034 A EP94400034 A EP 94400034A EP 0609109 B1 EP0609109 B1 EP 0609109B1
Authority
EP
European Patent Office
Prior art keywords
compartment
core
winding
passage
bobbin 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
EP94400034A
Other languages
English (en)
French (fr)
Other versions
EP0609109A1 (de
Inventor
Pierre Heritier-Best
Laurent Coste
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.)
Sagem SA
Original Assignee
Sagem Allumage SA
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 Sagem Allumage SA filed Critical Sagem Allumage SA
Publication of EP0609109A1 publication Critical patent/EP0609109A1/de
Application granted granted Critical
Publication of EP0609109B1 publication Critical patent/EP0609109B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H01F2005/022—Coils wound on non-magnetic supports, e.g. formers wound on formers with several winding chambers separated by flanges, e.g. for high voltage applications

Definitions

  • the present invention relates to a winding reel secondary ignition coil for combustion engine internal, and more particularly such a bobbin of the type comprising a tubular winding core and a plurality of fins substantially perpendicular to the axis of the nucleus, the fins delimiting between them annular winding compartments including the core forms the bottom, and each comprising a passage for allow the secondary winding wire to pass, in the direction of winding, of the compartment located upstream of this fin to the compartment located downstream.
  • Such secondary coils are known, for example by document EP-A-0 375 502.
  • combustion of the gas mixture in the cylinder is caused by the spark that occurs between the electrodes of a spark plug.
  • the voltage across the secondary can reach several tens of thousands of volts.
  • the aforementioned document proposes to remedy this disadvantage by providing isolation compartments between the winding compartments so that increase the distance between the turns by two successive winding compartments.
  • the invention aims to overcome this drawback.
  • the invention relates to a bobbin ignition coil secondary winding for internal combustion engine, of the type comprising a core tubular winding and a plurality of fins substantially perpendicular to the axis of the nucleus, the fins delimiting compartments between them winding annulars whose core forms the bottom, and each having a passage to allow the wire to the secondary winding to pass, in the direction of the winding, of the compartment located upstream of this fin at the downstream compartment, characterized by the fact that said core has a shape such that said passage leads into the upstream compartment at a certain distance from said core and in the compartment downstream at said core.
  • the passage can in particular be constituted by the bottom a slot extending from the edge of the fin.
  • the funds of two compartments adjacent can be offset radially at level of said passage, a distance equal to a thickness winding.
  • the wire of the secondary winding is brought back, when passing from the upstream compartment to downstream compartment, from the upper level of the winding at a lower level.
  • the core has a generally rectangular section, said passage being formed in a corner of the core, and the corresponding angle of the upstream compartment being cut.
  • the funds of the sub-funds may in particular be identical and, in projection, between two adjacent compartments, be offset in their plane, or angularly around their axis.
  • Said entry and exit passages may in particular be diametrically opposed.
  • Each compartment 6 therefore forms a groove
  • the side walls 7 are formed by the two fins which delimit this compartment
  • whose bottom 8 is formed by the core 2.
  • the winding is carried out compartment by compartment, from right to left in Figure 1.
  • the fin 5b of FIG. 1 separates its upstream compartment 6a located to its right of its downstream compartment 6b located to its left.
  • the bobbin 1 and in particular its core 2, has a shape which is substantially rectangular.
  • slots 9 extending from the edge of the fins and substantially tangent to the core. More particularly, we see in this figure the slot 9a formed in the fin 5a, to allow entry into compartment 6a, and slot 9b formed in the fin 5b, to allow passage of the wire from compartment 6a in compartment 6b.
  • the slot 9a is tangent to the bottom 8a from compartment 6a and arrives at this bottom, from same as the slot 9b is tangent to the bottom 8b of the compartment 6b and also arrives at this level background.
  • Figure 4 shows only the bottoms 8a and 8b of the compartments 6a and 6b, the slots 9a and 9b, winding 11a in compartment 6a and the first winding coil 12 in compartment 6b.
  • the distance e is equal to the thickness of the winding 11a.
  • the first turn 12 of the winding in the compartment 6b is, at the level of the slot 9b, in vis-à-vis the last winding layer in the compartment 6a, so that there is no potential difference between the windings in the two compartments at the level of this slot.
  • FIG. 5a to 5d which show, simplified, sections along a line such as V-V in FIG. 2, illustrate the winding of a wire 20 whose diameter would be equal to the thickness of a compartment 6, and which schematically therefore in fact several layers of winding.
  • the filling of the compartment 6 n + 1 by the wire 20 is carried out as shown in FIG. 5b. It can be seen in this figure that no potential difference exists at the level of the slot 9 n between the winding in the compartment 6 n and the winding in the compartment 6 n + 1 .
  • FIG. 5d representing the winding in the following compartment 6 n + 3 .
  • Figures 6 to 10 showing other modes of realization, are similar to figure 2, but only the funds of the sub-funds have been represented, the passages from one compartment to another being illustrated by arrows.
  • the funds of the compartments are circulars, funds 61 and 62 of the upstream compartments and downstream respectively being offset in their plane.
  • the passage from the upstream compartment to the downstream compartment takes place at arrow 63, and the passage to the next compartment is diametrically opposite.
  • the funds 81 and 82 of the upstream and downstream compartments are square and offset in their plan parallel to one on their side.
  • the passage of upstream compartment to downstream compartment takes place at level of arrow 83, in the middle area of the sides 84 staggered.
  • the passage to the compartment again next takes place in the area on side 85 opposite the side 84.
  • FIG. 9 also illustrates an embodiment where funds 91 and 92 of the upstream and downstream compartments are squares, but here they are angularly offset by rotation in their plane around their axis.
  • the passage from the upstream compartment to the downstream compartment is carried out level of one of the arrows 93, 93 ', 93 ", 93"' and the switch to the next compartment again at one of the arrows 94, 94 ', 94 ", 94"'.
  • the funds 101 and 102 of the upstream and downstream compartments respectively are always square, but they are offset in their plane parallel to one of their diagonal.
  • the passage from the upstream compartment to downstream compartment takes place at arrow 103 and the passage to the next compartment is postponed 180 degrees.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Insulating Of Coils (AREA)

Claims (10)

  1. Spulenkörper für eine Sekundärwicklung einer Zündspule für Brennkraftmaschinen mit einem rohrförmigen Wickelkern (2) und einer Mehrzahl von Rippen (5a, 5b, ..., 5n), die im wesentlichen rechtwinklig zur Achse (3) des Kerns angeordnet sind und zwischen sich ringförmige Wicklungsabschnitte (6a, 6b, ..., 6n) begrenzen, deren Boden (8a, 8b, ..., 8n) vom Kern gebildet wird, und die jeweils (5n, Fig. 5a) einen Durchlaß (9n) aufweisen, um dem Draht der Sekundärwicklung in Wickelrichtung einen Übertritt von einem Abschnitt (6n) vor der Rippe zu einem Abschnitt (6n+1) hinter der Rippe zu ermöglichen,
       dadurch gekennzeichnet,
       daß der Kern eine solche Form besitzt, daß der Durchlaß (9n) beim Austritt aus einem vorhergehenden Abschnitt (6n) einen bestimmten Abstand (e) vom Kern hat und in den nachfolgenden Abschnitt (6n+1) auf dem Niveau des Kerns mündet.
  2. Spulenkörper nach Anspruch 1, dadurch gekennzeichnet, daß der Durchlaß von dem Boden eines Schlitzes gebildet ist, der sich vom Rand der Rippe aus erstreckt.
  3. Spulenkörper nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, daß die Böden von zwei benachbarten Abschnitten vom Niveau des Durchlasses aus um einen Abstand (e) radial gestuft sind, der gleich einer Wicklungsdicke ist.
  4. Spulenkörper nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß der Kern einen im wesentlichen rechtwinkligen Querschnitt aufweist, wobei der Durchlaß in einer Ecke des Kerns gebildet ist und die zugehörige Ecke (10) des vorhergehenden Abschnitts angeschnitten ist.
  5. Spulenkörper nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Böden von zwei benachbarten Abschnitten im wesentlichen identische jedoch nicht-konzentrische Kreise bilden.
  6. Spulenkörper nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Böden von zwei benachbarten Abschnitten im wesentlichen identische Ellipsen bilden, deren Hauptachsen winkelversetzt sind.
  7. Spulenkörper nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Böden von zwei benachbarten Abschnitten im wesentlichen identische Rechtecke bilden, die in ihrer Ebene gegeneinander versetzt angeordnet sind.
  8. Spulenkörper nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Böden von zwei benachbarten Abschnitten zwei im wesentlichen identische Rechtecke bilden, deren Diagonalen winkelversetzt sind.
  9. Spulenkörper nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Eintrittsöffnung (9a) eines Abschnitts winkelversetzt zu seiner Austrittsöffnung (9b) angeordnet ist.
  10. Spulenkörper nach Anspruch 9, dadurch gekennzeichnet, daß sich die Eintritts- und Austrittsöffnungen diametral gegenüber liegen.
EP94400034A 1993-01-28 1994-01-06 Spulenkörper für Sekundärwicklung einer Zündspule für Brennkraftmaschine Expired - Lifetime EP0609109B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9300857 1993-01-28
FR9300857A FR2700884B1 (fr) 1993-01-28 1993-01-28 Bobinot d'enroulement secondaire de bobine d'allumage pour moteur à combustion interne.

Publications (2)

Publication Number Publication Date
EP0609109A1 EP0609109A1 (de) 1994-08-03
EP0609109B1 true EP0609109B1 (de) 1998-09-09

Family

ID=9443439

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94400034A Expired - Lifetime EP0609109B1 (de) 1993-01-28 1994-01-06 Spulenkörper für Sekundärwicklung einer Zündspule für Brennkraftmaschine

Country Status (12)

Country Link
US (1) US5523733A (de)
EP (1) EP0609109B1 (de)
JP (1) JP3513201B2 (de)
CN (1) CN1041765C (de)
AT (1) ATE171007T1 (de)
BR (1) BR9400336A (de)
CA (1) CA2114370A1 (de)
DE (1) DE69413081T2 (de)
ES (1) ES2124855T3 (de)
FR (1) FR2700884B1 (de)
RU (1) RU2121597C1 (de)
SI (1) SI9400043A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2725590B1 (de) * 2012-10-26 2015-01-28 Tyco Electronics Belgium EC BVBA Spulendrahtträgerelement, Herstellungsverfahren dafür und induktiver Energieübertragungskoppler damit
JP6264269B2 (ja) * 2014-12-01 2018-01-24 株式会社デンソー 巻線装置
FR3140705A1 (fr) * 2022-10-07 2024-04-12 Supergrid Institute Bobine multicouche isolée électriquement pour transformateur électrique.

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB278842A (en) * 1926-08-13 1927-10-20 Charles Oliver Improvements in or relating to radio or high frequency choke coils for wireless telephony
US3461414A (en) * 1968-05-13 1969-08-12 Western Electric Co Inductive coil and method of making the same
US3661342A (en) * 1970-08-19 1972-05-09 Jackson Controls Co Inc Operative winding separator
DE2754221A1 (de) * 1977-12-06 1979-06-07 Philips Patentverwaltung Hochspannungsspule fuer einen hochspannungstransformator
US4274136A (en) * 1978-09-01 1981-06-16 Sony Corporation Bobbin structure for high voltage transformers
US4387863A (en) * 1981-12-17 1983-06-14 Western Electric Company, Inc. Spool assembly
JPS592572A (ja) * 1982-06-28 1984-01-09 Denki Onkyo Co Ltd 高圧発生装置
JPS5941814A (ja) * 1982-09-01 1984-03-08 Hitachi Ltd 分割巻形モ−ルド点火コイル
DE3504298A1 (de) * 1985-02-08 1986-08-14 Robert Bosch Gmbh, 7000 Stuttgart Fuer eine hochspannungswicklung, insbesondere fuer die sekundaerwicklung einer kraftfahrzeug-zuendspule bestimmter spulenkoerper
DE3546371A1 (de) * 1985-12-31 1987-07-02 Basf Ag Pyrethroide, verfahren zu ihrer herstellung und ihre verwendung zur bekaempfung von schaedlingen sowie vorprodukte fuer die herstellung der pyrethroide
US4862130A (en) * 1987-07-16 1989-08-29 United Technologies Automotive, Inc. Wire cross-over arrangement for angular coil assembly
DE3741796A1 (de) * 1987-12-10 1989-06-22 Vogt Electronic Ag Nichtlineare schwingdrossel fuer elektronische vorschaltgeraete von leuchtstofflampen

Also Published As

Publication number Publication date
CN1041765C (zh) 1999-01-20
CN1094792A (zh) 1994-11-09
FR2700884B1 (fr) 1995-04-21
CA2114370A1 (fr) 1994-07-29
SI9400043A (en) 1994-09-30
DE69413081T2 (de) 1999-05-20
US5523733A (en) 1996-06-04
JPH0774035A (ja) 1995-03-17
JP3513201B2 (ja) 2004-03-31
ES2124855T3 (es) 1999-02-16
EP0609109A1 (de) 1994-08-03
ATE171007T1 (de) 1998-09-15
RU2121597C1 (ru) 1998-11-10
DE69413081D1 (de) 1998-10-15
FR2700884A1 (fr) 1994-07-29
BR9400336A (pt) 1994-08-23

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