EP0609109A1 - Spulenkörper für Sekundarwicklung einer Zündspule für Brennkraftmaschine - Google Patents

Spulenkörper für Sekundarwicklung einer Zündspule für Brennkraftmaschine Download PDF

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Publication number
EP0609109A1
EP0609109A1 EP94400034A EP94400034A EP0609109A1 EP 0609109 A1 EP0609109 A1 EP 0609109A1 EP 94400034 A EP94400034 A EP 94400034A EP 94400034 A EP94400034 A EP 94400034A EP 0609109 A1 EP0609109 A1 EP 0609109A1
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.)
Granted
Application number
EP94400034A
Other languages
English (en)
French (fr)
Other versions
EP0609109B1 (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 secondary winding coil of an ignition coil for an internal combustion engine, and more particularly such a coil of the type comprising a tubular winding core and a plurality of fins substantially perpendicular to the axis of the core. , the fins delimiting between them annular winding compartments whose core forms the bottom, and each comprising a passage to allow the wire of the secondary winding to pass, in the winding direction, from the compartment located upstream of this fin to the compartment located downstream.
  • Such secondary coils are known, for example from document EP-A-0 375 502.
  • the combustion of the gas mixture in the cylinder is caused by the spark that occurs between the electrodes of a spark plug.
  • the terminals of the spark plug are connected to the ends of the secondary winding (high-voltage) of a transformer such as an ignition coil, the primary winding of which is connected to a voltage source. via a switch such as a transistor.
  • the voltage across the secondary can reach several tens of thousands of volts.
  • the aforementioned fins by delimiting separate winding compartments, make it possible to limit the risks of the formation of a spark between two turns of this winding. Indeed, the voltage between the input coil and the output coil of the same compartment is limited to a few thousand volts in the usual case where the number of compartments is of the order of ten.
  • the aforementioned document proposes to remedy this drawback by providing isolation compartments between the winding compartments so as to increase the distance between the turns of two successive winding compartments.
  • the present invention aims to overcome this drawback.
  • the subject of the invention is a secondary winding coil of an ignition coil for an internal combustion engine, of the type comprising a tubular winding core and a plurality of fins substantially perpendicular to the axis of the core. , the fins delimiting between them annular winding compartments whose core forms the bottom, and each comprising a passage to allow the wire of the secondary winding to pass, in the winding direction, from the compartment located upstream of this fin in the downstream compartment, characterized in that said core has a shape such that said passage opens into the upstream compartment at a certain distance from said core and into the downstream compartment at said core.
  • the passage may in particular be constituted by the bottom of a slot extending from the edge of the fin.
  • the bottoms of two adjacent compartments can be offset radially at the level of said passage, by a distance equal to a thickness of winding.
  • the wire of the secondary winding is brought back, during the passage from the upstream compartment to the downstream compartment, from the upper level of the winding to a lower level.
  • the core has a generally rectangular section, said passage being formed in an angle of the core, and the corresponding angle of the upstream compartment being cut.
  • bottoms of two adjacent compartments can be circular eccentric, or elliptical with large axes angularly offset, or rectangular offset in their plane parallel to one of their side or their diagonal, or even rectangular with their diagonals angularly offset.
  • Said inlet and outlet passages may in particular be diametrically opposite.
  • the secondary coil 1 of an internal combustion engine ignition coil formed of a tubular core 2 of axis 3, and made in known manner of insulating plastic.
  • the bodies 4 for mounting and connecting the bobbin are made in one piece with the core 2.
  • each compartment 6 therefore forms a groove, the side walls 7 of which are formed by the two fins which delimit this compartment, and the bottom 8 of which is formed by the core 2.
  • the winding is carried out compartment by compartment, from right to left in FIG. 1. Consequently, the fin 5b of FIG. 1 separates its upstream compartment 6a situated on its right from its downstream compartment 6b situated on its left.
  • the bobbin 1, and in particular its core 2 has a substantially rectangular shape.
  • 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 the compartment 6a, and the slot 9b formed in the fin 5b, to allow the passage of the wire from compartment 6a to the compartment 6b.
  • the slot 9a is tangent to the bottom 8a of the compartment 6a and arrives at this bottom, just as the slot 9b is tangent to the bottom 8b of the compartment 6b and also arrives at this bottom.
  • FIG. 4 only shows the bottoms 8a and 8b of the compartments 6a and 6b, the slots 9a and 9b, the winding 11a in the compartment 6a and the first coil 12 of winding in the compartment 6b. It can also be seen in this figure that the distance e is equal to the thickness of the winding 11a. Consequently, the first turn 12 of the winding in the compartment 6b is, at the level of the slot 9b, facing the last winding layer in the compartment 6a, so that it is not located no difference in potential between the windings in the two compartments at this slot.
  • FIGS 5a to 5d which show, simplified, sections along a line such as VV of Figure 2, illustrate the winding of a wire 20 whose diameter would be equal to the thickness of a compartment 6, and which schematically so 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 embodiments, are similar to Figure 2, but only the funds of the compartments have been shown, the passages from one compartment to the other being illustrated by arrows.
  • the bottoms of the compartments are circular, the bottoms 61 and 62 of the upstream and downstream compartments respectively being offset in their plane.
  • the passage from the upstream compartment to the downstream compartment takes place at the arrow 63, and the passage to the following compartment is diametrically opposite.
  • the bottoms 71 and 72 of the upstream and downstream compartments form ellipses whose major axes are perpendicular, the passage from the upstream compartment to the downstream compartment taking place at one of the arrows 73 or 73 '.
  • the passage to the next compartment is here offset by 90 degrees compared to the previous one.
  • the bottoms 81 and 82 of the upstream and downstream compartments are square and offset in their plane parallel to one on their side.
  • the passage from the upstream compartment to the downstream compartment takes place at the arrow 83, in the zone of the middle of the sides 84 offset.
  • the passage to the next compartment is carried out in the area on side 85 opposite side 84.
  • FIG. 9 also illustrates an embodiment where the bottoms 91 and 92 of the upstream and downstream compartments are square, but here they are angularly offset by rotation in their plane around their axis.
  • the passage from the upstream compartment to the downstream compartment takes place at one of the arrows 93, 93 ', 93'',93''' and the passage to the next following compartment at one of the arrows 94, 94 ', 94'',94'''.
  • the bottoms 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 diagonals.
  • the passage from the upstream compartment to the downstream compartment takes place at the arrow 103 and the passage to the following compartment is offset by 180 degrees.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Ignition Installations For Internal Combustion Engines (AREA)
  • Insulating Of Coils (AREA)
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 true EP0609109A1 (de) 1994-08-03
EP0609109B1 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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2725590A1 (de) * 2012-10-26 2014-04-30 Tyco Electronics Belgium EC BVBA Spulendrahtträgerelement, Herstellungsverfahren dafür und induktiver Energieübertragungskoppler damit
WO2024074719A1 (fr) * 2022-10-07 2024-04-11 Supergrid Institute Bobine multicouche isolée électriquement pour transformateur électrique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6264269B2 (ja) * 2014-12-01 2018-01-24 株式会社デンソー 巻線装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB2171562A (en) * 1985-02-08 1986-08-28 Bosch Gmbh Robert A coil body for a high-voltage winding
EP0320018A1 (de) * 1987-12-10 1989-06-14 VOGT electronic Aktiengesellschaft Schwingdrossel

Family Cites Families (8)

* 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
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
GB2171562A (en) * 1985-02-08 1986-08-28 Bosch Gmbh Robert A coil body for a high-voltage winding
EP0320018A1 (de) * 1987-12-10 1989-06-14 VOGT electronic Aktiengesellschaft Schwingdrossel

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 8, no. 131 (E - 251)<1568> 19 June 1984 (1984-06-19) *
PATENT ABSTRACTS OF JAPAN vol. 8, no. 81 (E - 238)<1518> 13 April 1984 (1984-04-13) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2725590A1 (de) * 2012-10-26 2014-04-30 Tyco Electronics Belgium EC BVBA Spulendrahtträgerelement, Herstellungsverfahren dafür und induktiver Energieübertragungskoppler damit
WO2014063991A1 (en) * 2012-10-26 2014-05-01 Tyco Electronics Belgium Ec Bvba Coil wire support element, manufacturing method thereof, and inductive power transfer coupler incorporating same
WO2024074719A1 (fr) * 2022-10-07 2024-04-11 Supergrid Institute Bobine multicouche isolée électriquement pour transformateur électrique
FR3140705A1 (fr) * 2022-10-07 2024-04-12 Supergrid Institute Bobine multicouche isolée électriquement pour transformateur électrique.

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
EP0609109B1 (de) 1998-09-09
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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