EP0645850A1 - Ignition device for an internal combustion engine - Google Patents

Ignition device for an internal combustion engine Download PDF

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Publication number
EP0645850A1
EP0645850A1 EP94402084A EP94402084A EP0645850A1 EP 0645850 A1 EP0645850 A1 EP 0645850A1 EP 94402084 A EP94402084 A EP 94402084A EP 94402084 A EP94402084 A EP 94402084A EP 0645850 A1 EP0645850 A1 EP 0645850A1
Authority
EP
European Patent Office
Prior art keywords
cable
connector
chimney
angular position
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
EP94402084A
Other languages
German (de)
French (fr)
Other versions
EP0645850B1 (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
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 EP0645850A1 publication Critical patent/EP0645850A1/en
Application granted granted Critical
Publication of EP0645850B1 publication Critical patent/EP0645850B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T13/00—Sparking plugs
    • H01T13/02—Details
    • H01T13/04—Means providing electrical connection to sparking plugs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap
    • H01R13/6395—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap for wall or panel outlets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2101/00—One pole

Definitions

  • the present invention relates to a combustion engine ignition member and more particularly such a member comprising at least one bent outlet chimney arranged to receive a cable end with lateral engagement.
  • This electrical circuit consists of a high voltage cable, one end of which is mounted on the spark plug and the other end of the high voltage chimney of the ignition member.
  • a disconnection of the cable from the high-voltage chimney may occur either due to a faulty installation, for example during a maintenance operation, or due to the tremors or vibrations normally occurring when the engine is used on which is mounted the ignition member.
  • the present invention aims to overcome these drawbacks.
  • the subject of the invention is an ignition member of an internal combustion engine, comprising at least one bent outlet chimney arranged to receive a cable end connector with lateral engagement, characterized in that it includes a stop offset from the axis of the end of the chimney to allow the end of the cable to be engaged in a first angular position, for positioning, of the latter relative to the chimney, and to prevent its disconnection in a second angular position, of use.
  • the means of the invention therefore in no way complicate the mounting of the cable connector on the outlet chimney since this mounting is carried out by a simple engagement, the locking being effected simply by rotation of the end of the cable.
  • holding means are provided to maintain, in use, the end of the cable in its second angular position.
  • These holding means may for example comprise a cover mounted on the body of the ignition member.
  • the device of Figure 1 comprises a housing 1 receiving three ignition coils 2 embedded in a resin.
  • the low voltage windings of the coils 2 are supplied by a connector 3.
  • These coils are double output coils, the internal combustion engine for which the device is intended being a six-cylinder V engine.
  • the device of Figure 1 is directly mounted above three of the engine cylinders so that the first outputs 4 of each coil are directly connected to the spark plugs.
  • the other outlets 5 here consist of bent chimneys. These outlet chimneys 5 are intended to be each connected to the spark plug of one of the other three cylinders of the engine by a connecting cable.
  • each stop 6 is located in front of the end of the corresponding chimney and offset relative to its axis.
  • Each stop 6 also has, on its side facing the chimney 5, an arcuate shape.
  • FIG. 2a represents the connector 8 before it engages on the end of the chimney 5. Its angular position is such that the end 7 of the cable is directed upwards.
  • the connector 8 has undergone a rotation of 90 ° such that the end of the cable 7 is now horizontal, engaged in the corresponding arc form of the stopper 6. In this position, the connector 8 cannot no longer be cleared from the outlet chimney 5.
  • a cover 9 is mounted on the body of the device and prevents the connector 8 from returning to its engagement and disconnection position.
  • the cover 9 is not necessary.
  • the length of the cable 7 can be provided such that, when its other end is mounted on the corresponding spark plug, it can no longer pivot.

Landscapes

  • Ignition Installations For Internal Combustion Engines (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Abstract

The invention relates to an ignition device for an internal combustion engine, comprising at least one elbowed bushing (duct) (5) arranged to receive a lateral snap-on cable (7) end connector (8). It comprises a stop (6), offset with respect to the axis of the end of the bushing, for allowing the cable connector to be snapped on in a first, fitting-on, angular position of the connector with respect to the bushing, and for preventing it from being disconnected in a second, use, angular position. <IMAGE>

Description

La présente invention concerne un organe d'allumage de moteur à combustion et plus particulièrement un tel organe comportant au moins une cheminée de sortie coudée agencée pour recevoir une extrémité de câble à enclenchement latéral.The present invention relates to a combustion engine ignition member and more particularly such a member comprising at least one bent outlet chimney arranged to receive a cable end with lateral engagement.

On sait que les ratés d'allumage sont à proscrire dans les moteurs à combustion interne utilisant un pot d'échappement catalytique. En effet, dans un tel cas l'essence se trouvant dans le cylindre est directement envoyée dans le pot d'échappement qu'elle endommage rapidement.We know that misfires are to be avoided in internal combustion engines using a catalytic converter. Indeed, in such a case the gasoline in the cylinder is directly sent into the exhaust pipe which it quickly damages.

Il est par conséquent essentiel d'assurer la continuité électrique du circuit d'alimentation de la bougie, c'est-à-dire du circuit haute tension entre la sortie de l'organe d'allumage, bobine, allumeur ou distributeur, et cette bougie. Ce circuit électrique est constitué d'un câble haute tension dont une extrémité est montée sur la bougie et l'autre extrémité sur la cheminée haute tension de l'organe d'allumage.It is therefore essential to ensure the electrical continuity of the spark plug supply circuit, that is to say of the high voltage circuit between the output of the ignition member, coil, igniter or distributor, and this candle. This electrical circuit consists of a high voltage cable, one end of which is mounted on the spark plug and the other end of the high voltage chimney of the ignition member.

Une déconnexion du câble de la cheminée haute tension peut se produire soit du fait d'une mise en place défectueuse, par exemple lors d'une opération de maintenance, soit du fait des secousses ou vibrations se produisant normalement lors de l'utilisation du moteur sur lequel est monté l'organe d'allumage.A disconnection of the cable from the high-voltage chimney may occur either due to a faulty installation, for example during a maintenance operation, or due to the tremors or vibrations normally occurring when the engine is used on which is mounted the ignition member.

On a déjà proposé des solutions à ce problème dans le cas de cheminées haute tension droites. Dans ces solutions, on utilise un organe de connexion intermédiaire entre le câble et la cheminée. Cet organe se présente sous la forme d'une galette dans le plan de laquelle est raccordé le câble haute tension. Cette galette est connectée à l'organe d'allumage par encliquetage dans une direction perpendiculaire à l'axe du câble.Solutions to this problem have already been proposed in the case of straight high-voltage chimneys. In these solutions, an intermediate connection member is used between the cable and the chimney. This member is in the form of a wafer in the plane of which is connected the high voltage cable. This wafer is connected to the ignition member by snap-fastening in a direction perpendicular to the axis of the cable.

Cet organe intermédiaire présente toutefois l'inconvénient d'être onéreux. En outre, cette solution n'est pas applicable dans le cas de cheminées haute tension coudées.However, this intermediate member has the disadvantage of being expensive. In addition, this solution is not applicable in the case of bent high-voltage chimneys.

On a également proposé dans le document FR-A- 2 682 822 de munir la coiffe du connecteur de câble de moyens de verrouillage. Un tel agencement donne d'une manière générale satisfaction, mais il complique le montage du câble.It has also been proposed in document FR-A-2 682 822 to provide the cover of the cable connector with locking means. Such an arrangement is generally satisfactory, but it complicates the mounting of the cable.

La présente invention vise à pallier ces inconvénients.The present invention aims to overcome these drawbacks.

A cet effet, l'invention a pour objet un organe d'allumage de moteur à combustion interne, comportant au moins une cheminée de sortie coudée agencée pour recevoir un connecteur d'extrémité de câble à enclenchement latéral, caractérisé par le fait qu'il comprend une butée décalée par rapport à l'axe de l'extrémité de la cheminée pour permettre l'enclenchement de l'extrémité du câble dans une première position angulaire, de mise en place, de celui-ci par rapport à la cheminée, et pour empêcher sa déconnexion dans une deuxième position angulaire, d'utilisation.To this end, the subject of the invention is an ignition member of an internal combustion engine, comprising at least one bent outlet chimney arranged to receive a cable end connector with lateral engagement, characterized in that it includes a stop offset from the axis of the end of the chimney to allow the end of the cable to be engaged in a first angular position, for positioning, of the latter relative to the chimney, and to prevent its disconnection in a second angular position, of use.

Les moyens de l'invention ne compliquent par conséquent absolument pas le montage du connecteur de câble sur la cheminée de sortie puisque ce montage s'effectue par un simple enclenchement, le verrouillage s'effectuant simplement par rotation de l'extrémité du câble.The means of the invention therefore in no way complicate the mounting of the cable connector on the outlet chimney since this mounting is carried out by a simple engagement, the locking being effected simply by rotation of the end of the cable.

Dans un mode de réalisation préféré de l'invention, on prévoit des moyens de maintien pour maintenir, en utilisation, I'extrémité du câble dans sa deuxième position angulaire.In a preferred embodiment of the invention, holding means are provided to maintain, in use, the end of the cable in its second angular position.

Ces moyens de maintien peuvent par exemple comprendre un couvercle monté sur le corps de l'organe d'allumage.These holding means may for example comprise a cover mounted on the body of the ignition member.

On décrira maintenant, à titre d'exemple non limitatif, un mode de réalisation particulier de l'invention en référence aux dessins annexés dans lesquels:

  • la figure 1 représente un ensemble de bobines d'allumage réalisé selon l'invention, et
  • les figures 2a à 2d illustrent les différentes étapes de montage d'un câble de liaison sur l'une des cheminées du dispositif de la figure 1.
A particular embodiment of the invention will now be described, by way of nonlimiting example, with reference to the appended drawings in which:
  • FIG. 1 represents a set of ignition coils produced according to the invention, and
  • FIGS. 2a to 2d illustrate the different stages of mounting a connecting cable on one of the chimneys of the device in FIG. 1.

Le dispositif de la figure 1 comprend un boîtier 1 recevant trois bobines d'allumage 2 noyées dans une résine. Les enroulements basse tension des bobines 2 sont alimentées par un connecteur 3. Ces bobines sont des bobines à double sortie, le moteur à combustion interne auquel est destiné le dispositif étant un moteur à six cylindres en V.The device of Figure 1 comprises a housing 1 receiving three ignition coils 2 embedded in a resin. The low voltage windings of the coils 2 are supplied by a connector 3. These coils are double output coils, the internal combustion engine for which the device is intended being a six-cylinder V engine.

Le dispositif de la figure 1 est directement monté au-dessus de trois des cylindres du moteur de sorte que les premières sorties 4 de chaque bobine sont directement connectées aux bougies. Les autres sorties 5 sont ici constituées de cheminées coudées. Ces cheminées de sortie 5 sont destinées à être reliées chacune à la bougie d'un des trois autres cylindres du moteur par un câble de liaison.The device of Figure 1 is directly mounted above three of the engine cylinders so that the first outputs 4 of each coil are directly connected to the spark plugs. The other outlets 5 here consist of bent chimneys. These outlet chimneys 5 are intended to be each connected to the spark plug of one of the other three cylinders of the engine by a connecting cable.

Selon l'invention, on a prévu, correspondant à chaque cheminée 5, une butée 6. Chaque butée 6 est située en avant de l'extrémité de la cheminée correspondante et décalée par rapport à son axe. Chaque butée 6 présente par ailleurs, de son côté tourné vers la cheminée 5, une forme en arc de cercle.According to the invention, there is provided, corresponding to each chimney 5, a stop 6. Each stop 6 is located in front of the end of the corresponding chimney and offset relative to its axis. Each stop 6 also has, on its side facing the chimney 5, an arcuate shape.

On voit sur les fig. 2a à 2d, le montage d'un câble de liaison 7 muni d'un connecteur 8 à enclenchement latéral, c'est-à-dire perpendiculairement à l'axe de l'extrémité du câble à laquelle il est monté. La figure 2a représente le connecteur 8 avant son enclenchement sur l'extrémité de la cheminée 5. Sa position angulaire est telle que l'extrémité 7 du câble soit dirigée vers le haut.We see in fig. 2a to 2d, the mounting of a connecting cable 7 provided with a connector 8 with lateral engagement, that is to say perpendicular to the axis of the end of the cable to which it is mounted. FIG. 2a represents the connector 8 before it engages on the end of the chimney 5. Its angular position is such that the end 7 of the cable is directed upwards.

A la figure 2b , le connecteur est enclenché sur la cheminée 5 mais se trouve encore dans la première position angulaire de mise en place, dans laquelle l'extrémité 7 du câble est tournée vers le haut.In FIG. 2b, the connector is engaged on the chimney 5 but is still in the first angular position of installation, in which the end 7 of the cable is turned upwards.

A la figure 2c le connecteur 8 a subi une rotation de 90° telle que l'extrémité du câble 7 se trouve maintenant horizontale, engagée dans la forme en arc de cercle correspondante de la butée 6. Dans cette position, le connecteur 8 ne peut plus être dégagé de la cheminée de sortie 5.In FIG. 2c, the connector 8 has undergone a rotation of 90 ° such that the end of the cable 7 is now horizontal, engaged in the corresponding arc form of the stopper 6. In this position, the connector 8 cannot no longer be cleared from the outlet chimney 5.

Enfin, à la figure 2d un couvercle 9 est monté sur le corps du dispositif et empêche le connecteur 8 de revenir à sa position d'enclenchement et de déconnexion.Finally, in FIG. 2d, a cover 9 is mounted on the body of the device and prevents the connector 8 from returning to its engagement and disconnection position.

Pour déconnecter le câble 7, il suffit de retirer le couvercle 9, de faire pivoter le connecteur 8 pour le ramener dans sa position où l'extrémité du câble est dirigée vers le haut puis de tirer sur ce connecteur pour le dégager de la cheminée 5.To disconnect the cable 7, simply remove the cover 9, rotate the connector 8 to bring it back to its position where the end of the cable is pointing upwards then pull on this connector to release it from the chimney 5 .

On remarquera que le couvercle 9 n'est pas nécessaire. En particulier, la longueur du câble 7 peut être prévue telle que, lorsque son autre extrémité est montée sur la bougie correspondante, il ne puisse plus pivoter.It will be noted that the cover 9 is not necessary. In particular, the length of the cable 7 can be provided such that, when its other end is mounted on the corresponding spark plug, it can no longer pivot.

Claims (3)

Organe d'allumage de moteur à combustion interne, comportant au moins une cheminée de sortie coudée (5) agencée pour recevoir un connecteur (8) d'extrémité de câble (7) à enclenchement latéral, caractérisé par le fait qu'il comprend une butée (6), décalée par rapport à l'axe de l'extrémité de la cheminée, pour permettre l'enclenchement du connecteur de câble dans une première position angulaire, de mise en place, de celui-ci par rapport à la cheminée, et pour empêcher sa déconnexion dans une deuxième position angulaire, d'utilisation.Internal combustion engine ignition member, comprising at least one angled outlet chimney (5) arranged to receive a cable end connector (8) with lateral engagement, characterized in that it comprises a stop (6), offset with respect to the axis of the end of the chimney, to allow the cable connector to be engaged in a first angular position, for positioning, of the latter relative to the chimney, and to prevent its disconnection in a second angular position, of use. Organe d'allumage selon la revendication 1, comprenant des moyens de maintien (9) pour maintenir, en utilisation, I'extrémité du câble dans sa deuxième position angulaire.Ignition member according to claim 1, comprising holding means (9) for holding, in use, the end of the cable in its second angular position. Organe d'allumage selon la revendication 2, dans lequel les moyens de maintien comprennent un couvercle monté sur le corps de l'organe.Ignition device according to claim 2, in which the holding means comprise a cover mounted on the body of the device.
EP19940402084 1993-09-23 1994-09-20 Ignition device for an internal combustion engine Expired - Lifetime EP0645850B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9311328A FR2710369B1 (en) 1993-09-23 1993-09-23 Internal combustion engine ignition component.
FR9311328 1993-09-23

Publications (2)

Publication Number Publication Date
EP0645850A1 true EP0645850A1 (en) 1995-03-29
EP0645850B1 EP0645850B1 (en) 1996-12-11

Family

ID=9451157

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940402084 Expired - Lifetime EP0645850B1 (en) 1993-09-23 1994-09-20 Ignition device for an internal combustion engine

Country Status (4)

Country Link
EP (1) EP0645850B1 (en)
DE (1) DE69401106T2 (en)
ES (1) ES2098883T3 (en)
FR (1) FR2710369B1 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3441920A1 (en) * 1984-11-16 1986-05-22 MGM Metall-Gießerei-Mannheim GmbH, 6800 Mannheim Coupling for heavy-current cables
EP0539279A1 (en) * 1991-10-21 1993-04-28 SAGEM ALLUMAGE Société Anonyme Connector cover for electrical cable connection

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3441920A1 (en) * 1984-11-16 1986-05-22 MGM Metall-Gießerei-Mannheim GmbH, 6800 Mannheim Coupling for heavy-current cables
EP0539279A1 (en) * 1991-10-21 1993-04-28 SAGEM ALLUMAGE Société Anonyme Connector cover for electrical cable connection

Also Published As

Publication number Publication date
FR2710369A1 (en) 1995-03-31
DE69401106T2 (en) 1997-07-03
FR2710369B1 (en) 1995-12-29
ES2098883T3 (en) 1997-05-01
DE69401106D1 (en) 1997-01-23
EP0645850B1 (en) 1996-12-11

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