EP0395512A1 - Ignition coil, particularly for internal combustion engines for motor vehicles, and means for securing the primary and secondary assemblies - Google Patents

Ignition coil, particularly for internal combustion engines for motor vehicles, and means for securing the primary and secondary assemblies Download PDF

Info

Publication number
EP0395512A1
EP0395512A1 EP90401129A EP90401129A EP0395512A1 EP 0395512 A1 EP0395512 A1 EP 0395512A1 EP 90401129 A EP90401129 A EP 90401129A EP 90401129 A EP90401129 A EP 90401129A EP 0395512 A1 EP0395512 A1 EP 0395512A1
Authority
EP
European Patent Office
Prior art keywords
primary
coil
assembly
ignition coil
internal combustion
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
EP90401129A
Other languages
German (de)
French (fr)
Other versions
EP0395512B1 (en
Inventor
Dominique Vialaneix
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
Valeo Electronique 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, Valeo Electronique SA filed Critical Sagem Allumage SA
Publication of EP0395512A1 publication Critical patent/EP0395512A1/en
Application granted granted Critical
Publication of EP0395512B1 publication Critical patent/EP0395512B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • 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
    • H01F2005/025—Coils wound on non-magnetic supports, e.g. formers wound on coaxial arrangement of two or more formers

Definitions

  • the present invention relates in particular to an ignition coil, in particular for an internal combustion engine of a motor vehicle.
  • Such a coil generally comprises at least one magnetic assembly of the closed circuit type, each comprising a central magnetic core around which two coils of plastic material carrying the primary and secondary windings are arranged coaxially, this assembly being integrated in an overmolded housing.
  • a magnetic flux return circuit which constitutes the metal frame thereof. Synthetic resin, poured inside the housing secures and electrically insulates between them the various elements constituting the ignition coil.
  • the assembly of the primary assembly in the secondary assembly must be carried out in a precise manner so that the spacings in all directions between primary and secondary are perfectly dimensioned.
  • Another problem to be resolved is to keep the primary assembly in place in the secondary so that, when the resin is injected into the housing, the primary assembly retains its position relative to the secondary assembly.
  • the present invention solves these problems.
  • the ignition coil, object of the invention comprising at least one magnetic assembly each comprising a central magnetic core around which are coaxially arranged two primary and secondary coils carrying the primary and secondary windings respectively, holding means capable of positioning and fix the primary winding in the secondary winding, is characterized in that the holding means consist of redents formed of material inside the secondary winding cooperating with one of the end flanges of the primary winding.
  • these holding means are associated with complementary means comprising bosses formed of material on the other flange of the primary winding cooperating with notches provided on an end flange of the secondary winding.
  • FIG. 1 represents an exploded view of the various elements of an ignition coil 1 for an internal combustion engine of a motor vehicle.
  • Each magnetic circuit is closed and has a primary winding 2 wound around a reel 3.
  • a central magnetic core 4 of rectangular outline and generally composed of cut and laminated magnetic sheets is housed inside the reel 3.
  • the secondary assembly S is held in lift on and around the primary assembly P.
  • each of these terminals is intended to be connected in a conventional manner, by an appropriate cable, to a spark plug associated with each cylinder of the engine.
  • Each high-voltage terminal B1, B2, B3, B4 comprises a high-voltage pad 30 which is fixed by screwing in a connection plate 28, previously inserted in a groove 26 of the coil 5. On one end of this connecting plate 28, the end of the secondary winding is welded.
  • the low-voltage connection is effected by a connection assembly consisting of a precut connection bar 61 which is inserted into a connector 60.
  • the primary P and secondary S assemblies being assembled one inside the other, the two magnetic circuits M1 and M2 thus formed are introduced into the housing 7 of a housing 8 made of insulating material.
  • a magnetic flux return circuit 9 the general U shape of which can be seen, consisting of cut and laminated magnetic sheets, is incorporated by molding in the housing 8.
  • the magnetic flux return circuits 9 constitute the metal frame of the housing 8.
  • FIG. 3 showing the secondary assembly S which consists of the coil 5 made by molding plastic material having at each of its ends a flange 20,21 and over the entire outer periphery of the tubular means constituting the secondary coil 5, a plurality of discs 22 compartmentalizing said spool.
  • Two wires, wound on the spool 5, constitute the secondary windings 6.
  • the discs 22 make it possible to maintain the wires constituting the windings 6 stacked over a large thickness.
  • the secondary winding 5 comprises a tubular housing 56 intended to receive the primary assembly P.
  • each primary assembly P has been shown ready to be assembled with the corresponding secondary assembly S by entering them in the direction indicated by the arrows F1, F2.
  • Each primary coil 3 has two end flanges 40,41.
  • flange 40 on the flange 40 are provided in material complementary means comprising two bosses 50, 52 of generally rectangular shape, a lateral part 52 protruding from each of the vertical walls of the flange 40.
  • the walls of the flange 41 of the primary coil 3 cooperate with the walls of the housing 56, then pass through the redents 57 , 58 thanks to their elasticity, immobilizing in translation the primary assembly P.

Landscapes

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

Abstract

Ignition coil comprising at least one magnetic assembly (M1, M2), each including a central magnetic core (4) around which are coaxially disposed two coil-frames, primary (3) and secondary (5), respectively carrying the primary (2) and secondary (6) windings, securing means able to position and fix the primary coil-frame (3) inside the secondary coil-frame (5), characterised in that the securing means consist of material ledges (57, 58) made in a tubular housing (56) of the secondary coil-frame (5) cooperating with one of the end flanges (41) of the primary coil-frame (3). <IMAGE>

Description

La présente invention concerne notamment une bobine d'allumage, en particulier pour moteur à combustion interne de véhicule automobile.The present invention relates in particular to an ignition coil, in particular for an internal combustion engine of a motor vehicle.

Une telle bobine comporte, en général, au moins un ensemble magnétique du type à circuit fermé, comprenant chacun un noyau magnétique central autour duquel sont disposés coaxialement deux bobineaux de matière plastique portant les enroulements primaire et secondaire, cet ensemble étant intégré dans un boîtier surmoulé en matière plastique, un circuit magnétique de retour de flux qui constitue l'armature métallique de celui-ci. De la résine synthétique, coulée à l'intérieur du boîtier solidarise et isole électriquement entre eux les différents éléments constituant la bobine d'allumage.Such a coil generally comprises at least one magnetic assembly of the closed circuit type, each comprising a central magnetic core around which two coils of plastic material carrying the primary and secondary windings are arranged coaxially, this assembly being integrated in an overmolded housing. made of plastic, a magnetic flux return circuit which constitutes the metal frame thereof. Synthetic resin, poured inside the housing secures and electrically insulates between them the various elements constituting the ignition coil.

On sait, dans de telles bobines d'allumage, que le circuit secondaire fournissant une tension électrique très élevée, il s'avère nécessaire de ménager un espace suffisant entre l'enroulement secondaire et toute autre masse métallique, ceci pour constituer des lignes de cheminement haute-tension maximum afin d'éviter la formation d'un arc électrique entre ledit enroulement secondaire et toute autre masse métallique.It is known, in such ignition coils, that the secondary circuit supplying a very high electric voltage, it turns out to be necessary to provide a sufficient space between the secondary winding and any other metallic mass, this to constitute path lines. maximum high-voltage in order to avoid the formation of an electric arc between said secondary winding and any other metallic mass.

Ceci est un problème d'autant plus difficile à résoudre que, dans les bobines d'allumage actuelles, les enroulements primaire et secondaire sont placés coaxialement sur le noyau magnétique central.This is a problem all the more difficult to solve since, in current ignition coils, the primary and secondary windings are placed coaxially on the central magnetic core.

Ainsi, lors de l'assemblage de la bobine, le montage de l'ensemble primaire dans l'ensemble secondaire doit s'effectuer de manière précise afin que les espacements dans toutes les directions entre primaire et secondaire soient parfaitement dimensionnés.Thus, during assembly of the coil, the assembly of the primary assembly in the secondary assembly must be carried out in a precise manner so that the spacings in all directions between primary and secondary are perfectly dimensioned.

Un autre problème à résoudre est de maintenir en place l'ensemble primaire dans le secondaire de manière à ce que, lors de l'injection de la résine dans le boîtier, l'ensemble primaire garde sa position par rapport à l'ensemble secondaire.Another problem to be resolved is to keep the primary assembly in place in the secondary so that, when the resin is injected into the housing, the primary assembly retains its position relative to the secondary assembly.

Enfin, le montage et la fixation de l'ensemble primaire doit se faire de manière aussi simple que possible de manière à satisfaire aux conditions économiques que nécessite la fabrication en grande série de telles bobines.Finally, the mounting and fixing of the primary assembly must be made as simple as possible so as to meet the economic conditions required by the mass production of such coils.

La présente invention permet de résoudre ces problèmes.The present invention solves these problems.

La bobine d'allumage, objet de l'invention, comportant au moins un ensemble magnétique comprenant chacun un noyau magnétique central autour duquel sont disposés coaxialement deux bobineaux primaire et secondaire portant respectivement les enroulements primaire et secondaire, des moyens de maintien aptes à positionner et fixer le bobineau primaire dans le bobineau secondaire, est caractérisée en ce que les moyens de maintien sont constitués de redents ménagés de matière à l'intérieur du bobineau secondaire coopérant avec l'un des flasques d'extrémité du bobineau primaire.The ignition coil, object of the invention, comprising at least one magnetic assembly each comprising a central magnetic core around which are coaxially arranged two primary and secondary coils carrying the primary and secondary windings respectively, holding means capable of positioning and fix the primary winding in the secondary winding, is characterized in that the holding means consist of redents formed of material inside the secondary winding cooperating with one of the end flanges of the primary winding.

Selon un autre aspect de l'invention, ces moyens de maintien sont associés à des moyens complémentaires comprenant des bossages ménagés de matière sur l'autre flasque du bobineau primaire coopérant avec des encoches prévues sur un flasque d'extrémité du bobineau secondaire.According to another aspect of the invention, these holding means are associated with complementary means comprising bosses formed of material on the other flange of the primary winding cooperating with notches provided on an end flange of the secondary winding.

La description qui va suivre, en regard des dessins annexés, fera mieux comprendre comment l'invention peut être réalisée.The description which follows, with reference to the appended drawings, will make it easier to understand how the invention can be implemented.

Il est à noter que ceux-ci décrivent et illustrent l'invention dans le cadre particulier d'une bobine multiple d'allumage comportant deux ensembles magnétiques du type décrit ci-dessus, mais l'objet de l'invention peut parfaitement s'appliquer à une bobine d'allumage par exemple du type monosortie ne comportant qu'un ensemble magnétique.

  • - La figure 1 est une vue éclatée des différents constituants composant une bobine double d'allumage selon l'invention.
  • - La figure 2 est une vue éclatée à plus grande échelle des deux ensembles magnétiques avant leur assemblage.
  • - La figure 3 est une vue en perspective à plus grande échelle de l'ensemble secondaire.
It should be noted that these describe and illustrate the invention in the specific context of a multiple ignition coil comprising two magnetic assemblies of the type described above, but the object of the invention can be perfectly applied. to an ignition coil for example of the single-output type comprising only one magnetic assembly.
  • - Figure 1 is an exploded view of the various components of a double ignition coil according to the invention.
  • - Figure 2 is an exploded view on a larger scale of the two magnetic assemblies before their assembly.
  • - Figure 3 is a perspective view on a larger scale of the secondary assembly.

La figure 1 représente une vue éclatée des différents éléments d'une bobine d'allumage 1 pour moteur à combustion interne de véhicule automobile.FIG. 1 represents an exploded view of the various elements of an ignition coil 1 for an internal combustion engine of a motor vehicle.

Il s'agit, dans l'exemple représenté, d'une bobine permettant d'alimenter les 4 bougies correspondant aux 4 cylindres du moteur.It is, in the example shown, a coil for supplying the 4 spark plugs corresponding to the 4 cylinders of the engine.

C'est donc une bobine double comprenant deux circuits magnétiques séparés identiques M1 et M2.It is therefore a double coil comprising two identical separate magnetic circuits M1 and M2.

Chaque circuit magnétique est fermé et comporte un enroulement primaire 2 bobiné autour d'un bobineau 3. Un noyau central magnétique 4 de contour rectangulaire et composé généralement de tôles magnétiques découpées et feuilletées est logé à l'intérieur du bobineau 3.Each magnetic circuit is closed and has a primary winding 2 wound around a reel 3. A central magnetic core 4 of rectangular outline and generally composed of cut and laminated magnetic sheets is housed inside the reel 3.

Autour de cet ensemble, que nous appellerons ensemble primaire P, est disposé un bobineau 5 autour duquel est bobiné un enroulement secondaire 6, et que nous appellerons ensemble secondaire S.Around this assembly, which we will call primary assembly P, is disposed a coil 5 around which is wound a secondary winding 6, and which we will call secondary assembly S.

L'ensemble secondaire S est maintenu en sustentation sur et autour de l'ensemble primaire P.The secondary assembly S is held in lift on and around the primary assembly P.

Sur les ensembles secondaires S sont disposées 4 bornes de sortie B1,B2,B3,B4. Chacune de ces bornes est destinée à être reliée de manière classique, par un câble approprié, à une bougie d'allumage associée à chaque cylindre du moteur.On the secondary assemblies S are arranged 4 output terminals B1, B2, B3, B4. Each of these terminals is intended to be connected in a conventional manner, by an appropriate cable, to a spark plug associated with each cylinder of the engine.

Chaque borne haute-tension B1,B2,B3,B4 comporte un plot haute-tension 30 venant se fixer par vissage dans une plaquette de liaison 28, préalablement insérée dans une rainure 26 du bobineau 5. Sur une extrémité de cette plaquette de liaison 28, on vient souder l'extrémité du bobinage secondaire. La liaison basse-tension s'effectue par un ensemble de connexion constitué d'une barrette de liaison 61 prédécoupée que l'on insère dans un connecteur 60.Each high-voltage terminal B1, B2, B3, B4 comprises a high-voltage pad 30 which is fixed by screwing in a connection plate 28, previously inserted in a groove 26 of the coil 5. On one end of this connecting plate 28, the end of the secondary winding is welded. The low-voltage connection is effected by a connection assembly consisting of a precut connection bar 61 which is inserted into a connector 60.

Les ensembles primaire P et secondaire S étant assemblés les uns dans les autres, les deux circuits magnétiques M1 et M2 ainsi constitués sont introduits dans le logement 7 d'un boîtier 8 réalisé en matière isolante.The primary P and secondary S assemblies being assembled one inside the other, the two magnetic circuits M1 and M2 thus formed are introduced into the housing 7 of a housing 8 made of insulating material.

Pour chaque ensemble magnétique M1,m2, un circuit magnétique de retour de flux 9, dont on voit la forme générale en U, constitué de tôles magnétiques découpées et feuilletées, est incorporé par moulage au boîtier 8.For each magnetic assembly M1, m2, a magnetic flux return circuit 9, the general U shape of which can be seen, consisting of cut and laminated magnetic sheets, is incorporated by molding in the housing 8.

Après moulage, seules apparaissent les surfaces rectangulaires 10 en vis-à-vis de chaque noyau magnétique 4 de l'ensemble primaire P.After molding, only the rectangular surfaces 10 appear opposite each magnetic core 4 of the primary assembly P.

Ainsi, les circuits magnétiques de retour de flux 9 constituent l'armature métallique du boîtier 8.Thus, the magnetic flux return circuits 9 constitute the metal frame of the housing 8.

Venant de moulage avec le boîtier 8, se trouvent à l'extérieur de celui-ci 4 appendices 11 reliés par des nervures 12 au boîtier 8. Dans ces appendices 11 viennent prendre place des inserts métalliques 13, l'ensemble constituant les moyens de fixation de l'ensemble bobine sur le véhicule.Coming from molding with the housing 8, are located outside of the latter 4 appendices 11 connected by ribs 12 to the housing 8. In these appendices 11 metal inserts 13 take place, the assembly constituting the fixing means of the coil assembly on the vehicle.

On se réfère maintenant à la figure 3 représentant l'ensemble secondaire S qui se compose du bobineau 5 réalisé par moulage de matière plastique comportant à chacune de ses extrémités un flasque 20,21 et sur toute la périphérie externe du moyen tubulaire constituant le bobineau secondaire 5, une pluralité de disques 22 compartimentant ledit bobineau. Deux fils, enroulés sur le bobineau 5, constituent les bobinages secondaires 6. Les disques 22 permettent de maintenir les fils constituant les enroulements 6 empilés sur une épaisseur importante.Referring now to Figure 3 showing the secondary assembly S which consists of the coil 5 made by molding plastic material having at each of its ends a flange 20,21 and over the entire outer periphery of the tubular means constituting the secondary coil 5, a plurality of discs 22 compartmentalizing said spool. Two wires, wound on the spool 5, constitute the secondary windings 6. The discs 22 make it possible to maintain the wires constituting the windings 6 stacked over a large thickness.

Le bobineau secondaire 5 comporte un logement tubulaire 56 destiné à recevoir l'ensemble primaire P.The secondary winding 5 comprises a tubular housing 56 intended to receive the primary assembly P.

Suivant l'invention, sont ménagés de matière à l'intérieur de ce logement 56, deux redents 57,58 dont l,épaisseur e varie progressivement. On se réfère à la figure 2 sur laquelle on a représenté chaque ensemble primaire P pret à être assemblé à l'ensemble secondaire S correspondant en pénétrant dans ceux-ci suivant le sens indiqué par les flèches F1,F2.According to the invention, are formed of material inside this housing 56, two reducers 57, 58 of which the thickness e varies gradually. Reference is made to FIG. 2 in which each primary assembly P has been shown ready to be assembled with the corresponding secondary assembly S by entering them in the direction indicated by the arrows F1, F2.

Chaque bobineau primaire 3 possède deux flasques d'extrémité 40,41.Each primary coil 3 has two end flanges 40,41.

Selon un autre aspect de l'invention, sur le flasque 40 sont ménagés de matière des moyens complémentaires comprenant deux bossages 50,52 de forme générale rectangulaire dont une partie latérale 52 dépasse de chacune des parois verticales du flasque 40.According to another aspect of the invention, on the flange 40 are provided in material complementary means comprising two bosses 50, 52 of generally rectangular shape, a lateral part 52 protruding from each of the vertical walls of the flange 40.

Sur le flasque d'extrémité 21 du bobineau secondaire 5 sont ménagées de matière deux encoches 54 et 55.On the end flange 21 of the secondary reel 5 are formed in material two notches 54 and 55.

Lors de l'introduction de l'ensemble primaire P dans le logement tubulaire 56 du bobineau secondaire 5, par exemple suivant la flèche F2, les parois du flasque 41 du bobineau primaire 3 coopèrent avec les parois du logement 56, puis franchissent les redents 57,58 grâce à leur élasticité, immobilisant en translation l'ensemble primaire P.During the introduction of the primary assembly P into the tubular housing 56 of the secondary coil 5, for example along the arrow F2, the walls of the flange 41 of the primary coil 3 cooperate with the walls of the housing 56, then pass through the redents 57 , 58 thanks to their elasticity, immobilizing in translation the primary assembly P.

Simultanément, lorsque l'ensemble primaire P est introduit dans l'ensemble secondaire S, par exemple suivant la flèche F1, les parties 52 des bossages 50,51 du flasque 40 du bobineau primaire 3 viennent s'emboîter dans les encoches 54,55 du flasque 21 du bobineau secondaire 5.Simultaneously, when the primary assembly P is introduced into the secondary assembly S, for example along arrow F1, the parts 52 of the bosses 50.51 of the flange 40 of the primary coil 3 come to fit into the notches 54.55 of the flange 21 of the secondary coil 5.

On a ainsi réalisé un positionnement précis de l'ensemble primaire P dans l'ensemble secondaire S et son immobilisation.We thus achieved a precise positioning of the primary assembly P in the secondary assembly S and its immobilization.

L'invention n'est pas limitée au mode de réalisation décrit et représenté et pourra donner lieu à toutes modifications désirables sans sortir pour cela du cadre de l'invention.The invention is not limited to the embodiment described and shown and may give rise to any desirable modifications without departing from the scope of the invention.

Claims (3)

1) Bobine d'allumage comportant au moins un ensemble magnétique (M1,M2) comprenant chacun un noyau magnétique central (4) autour duquel sont disposés coaxialement deux bobineaux primaire (3) et secondaire (5) portant respectivement les enroulements primaire (2) et secondaire (6), des moyens de maintien aptes à positionner et fixer le bobineau primaire (3) dans le bobineau secondaire (5), caractérisée en ce que les moyens de maintien sont constitués de redents (57,58) ménagées de matière dans un logement tubulaire (56) du bobineau secondaire (5) coopérant avec l'un des flasques d'extrémité (41) du bobineau primaire (3).1) Ignition coil comprising at least one magnetic assembly (M1, M2) each comprising a central magnetic core (4) around which are coaxially arranged two primary (3) and secondary (5) coils carrying the primary windings (2) respectively and secondary (6), holding means capable of positioning and fixing the primary winding (3) in the secondary winding (5), characterized in that the holding means consist of redents (57,58) formed of material in a tubular housing (56) of the secondary winding (5) cooperating with one of the end flanges (41) of the primary winding (3). 2) Bobine d'allumage suivant la revendication 1, caractérisée en ce que les moyens de maintien sont associés à des moyens complémentaires comprenant des bossages (50,51) ménagés de matière sur l'autre flasque d'extrémité (40) du bobineau primaire (3) dont la partie dépassante (52) coopère avec des encoches (54,55) ménagées de matière sur le flasque d'extrémité (21) du bobineau secondaire (5).2) Ignition coil according to claim 1, characterized in that the holding means are associated with complementary means comprising bosses (50,51) formed of material on the other end flange (40) of the primary coil (3), the projecting part (52) of which cooperates with notches (54, 55) made of material on the end flange (21) of the secondary coil (5). 3) Bobine d'allumage suivant la revendication 1, caractérisée en ce que les redents (57,58) ont une épaisseur (e) qui varie progressivement.3) Ignition coil according to claim 1, characterized in that the redents (57,58) have a thickness (e) which varies gradually.
EP90401129A 1989-04-28 1990-04-25 Ignition coil, particularly for internal combustion engines for motor vehicles, and means for securing the primary and secondary assemblies Expired - Lifetime EP0395512B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR898905641A FR2646550B1 (en) 1989-04-28 1989-04-28 IGNITION COIL, PARTICULARLY FOR AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE, AND MEANS FOR HOLDING THE PRIMARY ASSEMBLY IN THE SECONDARY
FR8905641 1989-04-28

Publications (2)

Publication Number Publication Date
EP0395512A1 true EP0395512A1 (en) 1990-10-31
EP0395512B1 EP0395512B1 (en) 1994-04-06

Family

ID=9381219

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90401129A Expired - Lifetime EP0395512B1 (en) 1989-04-28 1990-04-25 Ignition coil, particularly for internal combustion engines for motor vehicles, and means for securing the primary and secondary assemblies

Country Status (6)

Country Link
US (1) US5015984A (en)
EP (1) EP0395512B1 (en)
JP (1) JPH03129714A (en)
DE (1) DE69007844T2 (en)
ES (1) ES2055359T3 (en)
FR (1) FR2646550B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4406068A1 (en) * 1993-07-09 1995-01-19 Mitsubishi Electric Corp Ignition coil

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5271373A (en) * 1990-05-15 1993-12-21 Mitsubishi Denki Kabushiki Kaisha Ignition coil device for an internal combustion engine
JP3188962B2 (en) * 1992-09-24 2001-07-16 東洋電装株式会社 Engine ignition coil device
US5444427A (en) * 1992-09-24 1995-08-22 Toyo Denso Kabushiki Kaisha Ignition coil device for engine
EP0715764B1 (en) * 1993-08-26 1998-11-25 Ford Motor Company Limited Method of forming an ignition coil assembly
AU4617696A (en) * 1995-02-15 1996-09-04 Electronic Craftsmen Limited Transformer and method of assembly
US6118362A (en) * 1997-01-24 2000-09-12 Sundstrand Corporation Integrated inductive assembly
US6169801B1 (en) 1998-03-16 2001-01-02 Midcom, Inc. Digital isolation apparatus and method
JP2000012350A (en) * 1998-06-22 2000-01-14 Koito Mfg Co Ltd Transformer
US6344786B1 (en) * 2000-10-06 2002-02-05 Artesyn Technologies, Inc. Telescoping bobbin
US6806803B2 (en) * 2002-12-06 2004-10-19 Square D Company Transformer winding
US6894597B2 (en) * 2003-02-21 2005-05-17 Delphi Technologies, Inc. Axially potted progressive wound remote mount ignition coil
CN102971811B (en) * 2010-07-26 2016-04-13 三菱电机株式会社 Transformer
TWI712058B (en) * 2020-09-08 2020-12-01 昱京科技股份有限公司 Resonant transformer high pin structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2006736A1 (en) * 1970-02-14 1971-08-26 Nordmende Mains transformer with roll-over-proof dimensioned coils
EP0138014A1 (en) * 1983-10-01 1985-04-24 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. Chamber coil body
DE3433700A1 (en) * 1984-09-13 1986-03-20 Siemens AG, 1000 Berlin und 8000 München Winding former for an electrical transformer
EP0230811A2 (en) * 1986-01-24 1987-08-05 Valeo Electronique Ignition coil with a closed magnetic circuit
GB2199700A (en) * 1986-12-04 1988-07-13 Nippon Denso Co Ignition coil assembly for internal combustion engines

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7204034A (en) * 1972-03-25 1973-09-27
FR2422236A1 (en) * 1978-04-05 1979-11-02 Jeumont Schneider High inter-winding isolation transformer framework - has one former sitting within side wall of second
DE2838174A1 (en) * 1978-09-01 1980-03-13 Philips Patentverwaltung HV low power transformer coil - has two coaxial ribbed cylindrical formers with winding sections linked in series between ends
US4250479A (en) * 1979-04-09 1981-02-10 Hewlett-Packard Company Transformer bobbin assembly
FR2602086B1 (en) * 1986-07-23 1989-04-07 Ducellier & Cie EXPANDABLE ELEMENT FOR IGNITION COIL

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2006736A1 (en) * 1970-02-14 1971-08-26 Nordmende Mains transformer with roll-over-proof dimensioned coils
EP0138014A1 (en) * 1983-10-01 1985-04-24 GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG. Chamber coil body
DE3433700A1 (en) * 1984-09-13 1986-03-20 Siemens AG, 1000 Berlin und 8000 München Winding former for an electrical transformer
EP0230811A2 (en) * 1986-01-24 1987-08-05 Valeo Electronique Ignition coil with a closed magnetic circuit
GB2199700A (en) * 1986-12-04 1988-07-13 Nippon Denso Co Ignition coil assembly for internal combustion engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4406068A1 (en) * 1993-07-09 1995-01-19 Mitsubishi Electric Corp Ignition coil

Also Published As

Publication number Publication date
ES2055359T3 (en) 1994-08-16
EP0395512B1 (en) 1994-04-06
FR2646550B1 (en) 1994-03-04
US5015984A (en) 1991-05-14
DE69007844T2 (en) 1994-10-20
DE69007844D1 (en) 1994-05-11
FR2646550A1 (en) 1990-11-02
JPH03129714A (en) 1991-06-03

Similar Documents

Publication Publication Date Title
EP0395512B1 (en) Ignition coil, particularly for internal combustion engines for motor vehicles, and means for securing the primary and secondary assemblies
EP0313514B1 (en) Manufacturing method of a non-slotted stator for an electric motor and electric motor fitted with such a stator
EP0395511B1 (en) Device for fixing an ignition coil, particularly for internal combustion engines for motor vehicles
WO2002060038A1 (en) Multicontact electrical connector and rotating electrical machine bearing same
EP0283354A1 (en) Electric transformer, particularly for an ignition coil of an internal combustion engine
FR2706070A1 (en) Ignition coil for internal combustion engines.
FR2508250A1 (en) CLAMP-ADJUSTING CORE-CORE ASSEMBLY AND PROCESS FOR MANUFACTURING THE ELECTRIC MOTOR OF THE STEP-BY-STEP TYPE
EP1925011B1 (en) Heat engine starter switch comprising improved winding electrical connection means
BE1013707A3 (en) Engine and fixing structure.
EP2973952A1 (en) Electrical machine rotor provided with at least one hoop for retaining the turns of the winding and corresponding electrical machine
FR2788370A1 (en) IGNITION COIL WITH IMPROVED INSULATION RELIABILITY
FR2646555A1 (en) MEANS FOR ASSEMBLING SECONDARY COILS OF A MULTIPLE IGNITION COIL, IN PARTICULAR FOR AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE
FR2646551A1 (en) Electrical connections of the secondary circuit of an ignition coil, in particular for a motor vehicle internal combustion engine
FR2657995A1 (en) Ignition coil, especially for an internal combustion engine of a motor vehicle
EP0418136A1 (en) High voltage connection for an ignition coil, particularly for an internal combustion engine of an automotive vehicle
FR3062000B1 (en) RIGID INSULATION FOR ROTOR COILING OF ELECTRIC MOTOR
FR2646552A1 (en) IGNITION COIL, PARTICULARLY FOR AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE, AND MEANS FOR CALIBRATING THE GATE OF THE MAGNETIC CIRCUIT
EP0418137B1 (en) Ignition coil, particularly for an internal combustion engine of an automotive vehicle
FR2483677A1 (en) ELECTRIC COIL COMPONENTS
EP0072266A1 (en) Method of obtaining a coil with a closed magnetic circuit and a permanent magnet for the ignition of combustion engines
FR2622255A1 (en) DUAL IGNITION COIL, PARTICULARLY FOR AN INTERNAL COMBUSTION ENGINE OF A MOTOR VEHICLE, AND CIRCUIT FOR CONDUCTING PRIMARY WINDINGS FOR SUCH A COIL
FR2801347A1 (en) IGNITION DEVICE FOR AT LEAST TWO SPARK PLUGS OF AN INTERNAL COMBUSTION ENGINE
FR2731295A1 (en) Ignition coil for vehicle using permanent magnet in magnetic circuit
FR2644641A1 (en) Armature in a generator
EP0255409A1 (en) Electrical connections of the secondary circuit of an ignition coil

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES GB IT

17P Request for examination filed

Effective date: 19901102

17Q First examination report despatched

Effective date: 19910213

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SAGEM ALLUMAGE

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GB IT

REF Corresponds to:

Ref document number: 69007844

Country of ref document: DE

Date of ref document: 19940511

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940708

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2055359

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20090422

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20090420

Year of fee payment: 20

Ref country code: DE

Payment date: 20090414

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20090407

Year of fee payment: 20

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20100424

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20100426

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20100426

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20100424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20100425