EP0751545A1 - Starter contactor having an electronic circuit integrated to the contactor, and vehicle starter having such a contactor - Google Patents

Starter contactor having an electronic circuit integrated to the contactor, and vehicle starter having such a contactor Download PDF

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Publication number
EP0751545A1
EP0751545A1 EP96401392A EP96401392A EP0751545A1 EP 0751545 A1 EP0751545 A1 EP 0751545A1 EP 96401392 A EP96401392 A EP 96401392A EP 96401392 A EP96401392 A EP 96401392A EP 0751545 A1 EP0751545 A1 EP 0751545A1
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EP
European Patent Office
Prior art keywords
contactor
cover
axially
movable contact
contactor 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
EP96401392A
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German (de)
French (fr)
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EP0751545B1 (en
Inventor
Bruno Lefebvre
René Jacquet
Jean-François Quentric
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.)
Valeo Equipements Electriques Moteur SAS
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Valeo Equipements Electriques Moteur SAS
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Publication of EP0751545A1 publication Critical patent/EP0751545A1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/065—Relays having a pair of normally open contacts rigidly fixed to a magnetic core movable along the axis of a solenoid, e.g. relays for starting automobiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H01H50/021—Bases; Casings; Covers structurally combining a relay and an electronic component, e.g. varistor, RC circuit

Definitions

  • the present invention relates to a motor vehicle internal combustion engine starter switch.
  • a starter contactor comprises a cylindrical annular armature forming a housing in which a coil is arranged which actuates an axially movable core which acts on a control rod which passes through its center a fixed disc-shaped core arranged at the one of the axial ends of the armature, of the type in which the rod and the movable core controls the displacements of a movable contact which is capable of cooperating with two fixed contact terminals belonging to the supply circuit of the starter motor and which are arranged in the bottom of a cover in the general shape of a cylindrical pot whose skirt delimits a housing in which the movable contact is arranged.
  • an electronic circuit for controlling the contactor comprising a support, produced for example in the form of a printed circuit board, and of components carried by the support. .
  • the electronic control circuit is arranged inside a perfectly sealed housing which is then fixed outside the starter, on the support of the latter, on the contactor or on the cylinder head of the electric motor. of the starter.
  • the electronic control unit can also be fixed to the vehicle body in the engine compartment.
  • the arrangement of the electronic control circuit in an independent box therefore results in the production of an additional component, which is bulky, which requires the use of additional electrical connections and which requires assembly operations on the vehicle.
  • the invention provides a starter contactor of the type mentioned above, characterized in that the electronic control circuit is arranged axially inside the cover of the contactor.
  • the invention also provides a motor vehicle starter characterized in that it is equipped with a contactor in accordance with the teachings of the invention.
  • FIGS. 1 and 2 show an electromagnetic contactor 10 which is designed to equip a starter (not shown) with an internal combustion engine of a motor vehicle.
  • the contactor 10 comprises a movable core 12 which is connected to one end of a pivoting lever (not shown), the other end of which is connected to the starter launcher driver.
  • the electromagnetic contactor 10 comprises an external armature 14, also called tank or housing which is of generally annular cylindrical shape with axis X-X and inside which is in particular an annular coil 16.
  • the movable core is slidably mounted in a tubular skirt 18 which is fixed on the central portion 20 of a fixed core 22 in the general shape of a disc, the main planar and annular part 24 of which extends in a plane perpendicular to the axis.
  • XX is fixed in a housing 26 formed at the axial end 28 of the frame 14.
  • the central part 20 comprises a central bore 30 for the sliding guide of a control rod 31, along the axis XX, and on which the movable core acts.
  • the contactor 10 also includes a cover 32, produced by molding in insulating material, for example in thermoplastic material.
  • the cover 32 has the general shape of a cylindrical pot of axis X-X constituted by a radial end bottom 34 perpendicular to the axis X-X and by a cylindrical side skirt 36.
  • the main part of the skirt 36 delimits a cylindrical internal housing 38 and its free end is constituted by an end portion of larger diameter 40 which delimits an internal cavity 42 of generally cylindrical shape and whose annular end edge 43 is in axial abutment against the opposite face 25 of the disc-shaped part 24 of the fixed core 22.
  • the tight fitting of the cover 32 on the frame 14 is carried out by radial crimping towards the inside of a tapered axial end portion 44 of the frame 14.
  • the contactor 10 comprises two fixed terminals of conductive material 46 and 48 which are embedded by overmolding in the bottom 34 of the cover 32 and which each comprise a contact head 50, 52 which both extend in a plane perpendicular to the axis XX inside the housing 38.
  • the rod 31 of the movable core 12 carries a movable contact 54 in the form of a rectangular plate which is pierced at its center 56 for the passage of a portion of larger diameter 58 of the control rod 31.
  • the movable contact 54 In the active position, that is to say when the coil 16 is supplied, the core 12 and the rod 31 drive, from left to right considering FIG. 1, the movable contact 54 so that it establishes, by its face 60, a contact between the heads 50 and 52 of the terminals 46 and 48.
  • the movable contact 54 bears, at rest, by its opposite radial face 62 against a conical facing portion 64 formed in the radial face 66 an intermediate plug 68 in the general shape of a disc.
  • the plug 68 is a piece of insulating material which is mounted clamped by its cylindrical annular edge 70 in the internal wall of the housing 38 so as to axially immobilize the plug 68 relative to the skirt 36.
  • the plug 68 comprises a coaxial sleeve 72 for sliding guide of an enlarged portion 74 of the control rod 31.
  • the circuit 76 is constituted by a printed circuit board 78 in the form of a disc pierced in its center by a hole 79 to allow the passage of the portion 74 of the control rod 31.
  • a protective layer of resin 96 is overmolded on the card 78 and on the components of small dimensions mounted on the face 80.
  • the electronic control circuit 76 is fixed to the contactor by welding at 88 on the output pin of the common point of the coil 18.
  • the electronic control circuit 76 is therefore essentially arranged in the cavity 42 with the exception of its large components 92 and 94 which extend axially through an orifice 100 formed in the main disc-shaped part of the intermediate plug 68 and which is offset radially outwards with respect to one of the longitudinal edges 53 of the movable contact 54 which, according to a known design, is a rectangular plate delimited by two parallel longitudinal edges 53.
  • the components 92 and 94 thus extend axially beyond the plug 68 inside the housing 38 which receives the movable contact 54.
  • the plug 68 also has an orifice 102 diametrically opposite to the orifice 100 and which also opens radially outward into the edge 70 of the plug 68, which allows the passage of four electrical connection pins 104.
  • the pins 104 are embedded in an axially offset portion 106 of the bottom 34 of the cover 32 and they each comprise a first section 108 which extends axially in the direction of the electronic control circuit 76 to be received in one of the female contacts of the connector 82. Each pin 104 also includes an opposite section 110 which extends axially outside the cover 32 for its connection with a connector (not shown).
  • control rod 31, 74 passes through the electronic control circuit 76 by virtue of the central bore 79 of the plate 78, the control rod 31 then conventionally passing through the bore 30 of the core fixed 22 to come to cooperate with the movable core 12.
  • the electronic control circuit 76 is protected against water splashes and corrosion by means of the sealing means specific to the contactor.
  • the cover 32 of the contactor 10 retains its conventional shape in the general shape of a cylindrical pot and its own means of electrical connection are unchanged.
  • the overall axial length of the contactor 10 is only very slightly increased compared to a conventional contactor with an external electronic control circuit.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connector Housings Or Holding Contact Members (AREA)
  • Push-Button Switches (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The starter switch has an annular cylindrical armature (14) forming the casing for a coil (14) which operates a moving core (12) that acts on a control rod (31). The rod crosses a fixed disc-shaped core (22) and operates moving contacts (54) which join with fixed contacts (50,52) belonging to the starter motor supply circuit. The moving contact moves in a housing (38) in the cover (32) between the base (34) of the cover and a transverse, axially symmetric, disc-shaped cap (68) in the skirt (36) of the cover. The skirt extends beyond the cap to make a cavity (42) for the PCB disc (78). The moving contact rests against part (64) of the cap which has a central sleeve (72) and hole for the control rod.

Description

La présente invention concerne un contacteur de démarreur de moteur à combustion interne de véhicule automobile.The present invention relates to a motor vehicle internal combustion engine starter switch.

Selon une conception connue, un contacteur de démarreur comporte une armature annulaire cylindrique formant boîtier dans laquelle est agencée une bobine qui actionne un noyau mobile axialement qui agit sur une tige de commande qui traverse en son centre un noyau fixe en forme de disque agencé à l'une des extrémités axiales de l'armature, du type dans lequel la tige et le noyau mobile commande les déplacements d'un contact mobile qui est susceptible de coopérer avec deux bornes de contact fixes appartenant au circuit d'alimentation du moteur du démarreur et qui sont agencées dans le fond d'un capot en forme générale de pot cylindrique dont la jupe délimite un logement dans lequel est agencé le contact mobile.According to a known design, a starter contactor comprises a cylindrical annular armature forming a housing in which a coil is arranged which actuates an axially movable core which acts on a control rod which passes through its center a fixed disc-shaped core arranged at the one of the axial ends of the armature, of the type in which the rod and the movable core controls the displacements of a movable contact which is capable of cooperating with two fixed contact terminals belonging to the supply circuit of the starter motor and which are arranged in the bottom of a cover in the general shape of a cylindrical pot whose skirt delimits a housing in which the movable contact is arranged.

Afin d'assurer la commande du contacteur, il est connu de l'équiper d'un circuit électronique de commande du contacteur comportant un support, réalisé par exemple sous la forme d'une carte à circuit imprimé, et des composants portés par le support.In order to control the contactor, it is known to equip it with an electronic circuit for controlling the contactor comprising a support, produced for example in the form of a printed circuit board, and of components carried by the support. .

Selon une conception connue, le circuit électronique de commande est disposé à l'intérieur d'un boîtier parfaitement étanche qui est ensuite fixé à l'extérieur du démarreur, sur le support de ce dernier, sur le contacteur ou sur la culasse du moteur électrique du démarreur. Le boîtier du circuit électronique de commande peut également être fixé sur la caisse du véhicule dans le compartiment moteur.According to a known design, the electronic control circuit is arranged inside a perfectly sealed housing which is then fixed outside the starter, on the support of the latter, on the contactor or on the cylinder head of the electric motor. of the starter. The electronic control unit can also be fixed to the vehicle body in the engine compartment.

Il est alors nécessaire de prévoir des fils ou câbles qui relient le boîtier d'une part avec le contacteur de démarreur et, d'autre part, avec les autres organes du véhicule nécessaires à la commande du démarrage du moteur tels que la clef de contact, l'antivol, une unité de calcul électronique pour le pilotage de l'injection et de l'allumage, etc.It is then necessary to provide wires or cables which connect the housing on the one hand with the starter switch and, on the other hand, with the other components of the vehicle necessary for controlling the starting of the engine such as the ignition key. contact, the anti-theft device, an electronic calculation unit for controlling injection and ignition, etc.

La disposition du circuit électronique de commande dans un boîtier indépendant aboutit donc à la réalisation d'un composant supplémentaire, qui est encombrant, qui nécessite de faire appel à des liaisons électriques supplémentaires et qui impose des opérations d'assemblage sur le véhicule.The arrangement of the electronic control circuit in an independent box therefore results in the production of an additional component, which is bulky, which requires the use of additional electrical connections and which requires assembly operations on the vehicle.

Afin de remédier à ces inconvénients, l'invention propose un contacteur de démarreur du type mentionné précédemment, caractérisé en ce que le circuit électronique de commande est agencé axialement à l'intérieur du capot du contacteur.In order to remedy these drawbacks, the invention provides a starter contactor of the type mentioned above, characterized in that the electronic control circuit is arranged axially inside the cover of the contactor.

Selon d'autres caractéristiques de l'invention :

  • le support du circuit électronique de commande est un disque percé en son centre pour permettre le passage du corps de la tige de commande du noyau mobile et qui est agencé axialement entre le noyau fixe et le contact mobile ;
  • le logement du capot dans lequel est agencé le contact mobile est délimité axialement par le fond du capot et par un bouchon en forme de disque fixé axialement dans la jupe du capot et troué en son centre pour le passage de la tige de commande, et la jupe du capot se prolonge axialement au-delà du bouchon pour délimiter une cavité de forme générale cylindrique dans laquelle est agencé le circuit électronique de commande ;
  • en position de repos, le contact mobile est en appui axial contre une portion en vis-à-vis du bouchon ;
  • le bouchon comporte un manchon central de guidage en coulissement de la tige de commande ;
  • le corps du bouchon comporte des orifices pour le passage de certains des composants du circuit électronique de commande qui s'étendent axialement à l'intérieur de la cavité et du logement du contact mobile ;
  • le corps du bouchon comporte un orifice pour le passage de broches de raccordement électrique qui s'étendent axialement entre le circuit électronique de commande et le fond du capot ;
  • les broches de raccordement sont noyées dans le fond du capot en matériau isolant et elles s'étendent axialement d'une part à l'intérieur du capot en direction du circuit électronique de commande et, d'autre part, à l'extérieur du capot ;
  • le contact mobile est réalisé sous la forme d'une plaque rectangulaire dont la longueur est parallèle à un diamètre du contacteur, et l'orifice est décalé radialement par rapport à un bord longitudinal du contact mobile ;
  • le bord annulaire d'extrémité libre de la portion de la jupe du capot qui se prolonge axialement au-delà du bouchon prend appui axialement contre le noyau fixe ;
  • le support du circuit électronique de commande est fixé par soudage sur un élément appartenant à la bobine et qui s'étend axialement à travers le noyau fixe.
According to other characteristics of the invention:
  • the support of the electronic control circuit is a disk pierced in its center to allow the body of the control rod of the movable core to pass and which is arranged axially between the fixed core and the movable contact;
  • the housing of the cover in which the movable contact is arranged is axially delimited by the bottom of the cover and by a disc-shaped plug fixed axially in the skirt of the cover and perforated in its center for the passage of the control rod, and the cover skirt extends axially beyond the plug to delimit a generally cylindrical cavity in which the electronic control circuit is arranged;
  • in the rest position, the movable contact is in axial abutment against a portion opposite the plug;
  • the plug comprises a central sleeve for sliding guide of the control rod;
  • the cap body has holes for the passage of some of the components of the electronic circuit of controls which extend axially inside the cavity and the housing of the movable contact;
  • the plug body has an orifice for the passage of electrical connection pins which extend axially between the electronic control circuit and the bottom of the cover;
  • the connection pins are embedded in the bottom of the cover made of insulating material and they extend axially on the one hand inside the cover in the direction of the electronic control circuit and, on the other hand, outside the cover ;
  • the movable contact is made in the form of a rectangular plate whose length is parallel to a diameter of the contactor, and the orifice is offset radially with respect to a longitudinal edge of the movable contact;
  • the annular edge of the free end of the portion of the skirt of the cover which extends axially beyond the plug bears axially against the fixed core;
  • the support of the electronic control circuit is fixed by welding to an element belonging to the coil and which extends axially through the fixed core.

L'invention propose également un démarreur de véhicule automobile caractérisé en ce qu'il est équipé d'un contacteur conforme aux enseignements de l'invention.The invention also provides a motor vehicle starter characterized in that it is equipped with a contactor in accordance with the teachings of the invention.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui va suivre pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels :

  • La figure 1 est une vue en section axiale d'un contacteur de démarreur réalisé conformément aux enseignements de l'invention ;
  • la figure 2 est une vue en section axiale du contacteur illustré à la figure 1, selon un plan décalé de 90° par rapport au plan de section de la figure 1 ;
  • la figure 3 est une vue latérale du circuit électronique de commande du contacteur illustré aux figures 1 et 2, avant son enrobage dans une couche protectrice ;
  • la figure 4 est une vue selon la flèche F4 de la figure 3.
Other characteristics and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings in which:
  • Figure 1 is an axial sectional view of a starter switch made in accordance with the teachings of the invention;
  • Figure 2 is an axial sectional view of the contactor illustrated in Figure 1, along a plane offset by 90 ° relative to the section plane of Figure 1;
  • Figure 3 is a side view of the electronic circuit for controlling the contactor illustrated in Figures 1 and 2, before its coating in a protective layer;
  • FIG. 4 is a view along arrow F4 in FIG. 3.

On a représenté aux figures 1 et 2 un contacteur électromagnétique 10 qui est prévu pour équiper un démarreur (non représenté) d'un moteur à combustion interne de véhicule automobile.FIGS. 1 and 2 show an electromagnetic contactor 10 which is designed to equip a starter (not shown) with an internal combustion engine of a motor vehicle.

Le contacteur 10 comporte un noyau mobile 12 qui est relié à une extrémité d'un levier pivotant (non représenté) dont l'autre extrémité est reliée à l'entraîneur du lanceur du démarreur.The contactor 10 comprises a movable core 12 which is connected to one end of a pivoting lever (not shown), the other end of which is connected to the starter launcher driver.

Le contacteur électromagnétique 10 comporte une armature extérieure 14, également appelée cuve ou boîtier qui est de forme générale cylindrique annulaire d'axe X-X et à l'intérieur de laquelle est notamment disposée une bobine annulaire 16.The electromagnetic contactor 10 comprises an external armature 14, also called tank or housing which is of generally annular cylindrical shape with axis X-X and inside which is in particular an annular coil 16.

Le noyau mobile est monté coulissant dans une jupe tubulaire 18 qui est fixée sur la portion centrale 20 d'un noyau fixe 22 en forme générale de disque dont la partie principale plane et annulaire 24 qui s'étend dans un plan perpendiculaire à l'axe X-X est fixée dans un logement 26 formé à l'extrémité axiale 28 de l'armature 14.The movable core is slidably mounted in a tubular skirt 18 which is fixed on the central portion 20 of a fixed core 22 in the general shape of a disc, the main planar and annular part 24 of which extends in a plane perpendicular to the axis. XX is fixed in a housing 26 formed at the axial end 28 of the frame 14.

La partie centrale 20 comporte un perçage central 30 pour le guidage en coulissement d'une tige de commande 31, selon l'axe X-X, et sur laquelle agit le noyau mobile.The central part 20 comprises a central bore 30 for the sliding guide of a control rod 31, along the axis XX, and on which the movable core acts.

Le contacteur 10 comporte également un capot 32, réalisé par moulage en matériau isolant, par exemple en matière thermoplastique.The contactor 10 also includes a cover 32, produced by molding in insulating material, for example in thermoplastic material.

Le capot 32 présente une forme générale de pot cylindrique d'axe X-X constitué par un fond radial d'extrémité 34 perpendiculaire à l'axe X-X et par une jupe latérale cylindrique 36.The cover 32 has the general shape of a cylindrical pot of axis X-X constituted by a radial end bottom 34 perpendicular to the axis X-X and by a cylindrical side skirt 36.

La partie principale de la jupe 36 délimite un logement interne cylindrique 38 et son extrémité libre est constituée par une portion d'extrémité de plus grand diamètre 40 qui délimite une cavité interne 42 de forme générale cylindrique et dont le bord annulaire d'extrémité 43 est en appui axial contre la face en vis-à-vis 25 de la partie en forme de disque 24 du noyau fixe 22.The main part of the skirt 36 delimits a cylindrical internal housing 38 and its free end is constituted by an end portion of larger diameter 40 which delimits an internal cavity 42 of generally cylindrical shape and whose annular end edge 43 is in axial abutment against the opposite face 25 of the disc-shaped part 24 of the fixed core 22.

Le montage étanche du capot 32 sur l'armature 14 est réalisé par sertissage radial vers l'intérieur d'une portion d'extrémité axiale amincie 44 de l'armature 14.The tight fitting of the cover 32 on the frame 14 is carried out by radial crimping towards the inside of a tapered axial end portion 44 of the frame 14.

Selon une conception connue, le contacteur 10 comporte deux bornes fixes en matériau conducteur 46 et 48 qui sont noyées par surmoulage dans le fond 34 du capot 32 et qui comportent chacune une tête de contact 50, 52 qui s'étendent toutes les deux dans un plan perpendiculaire à l'axe X-X à l'intérieur du logement 38.According to a known design, the contactor 10 comprises two fixed terminals of conductive material 46 and 48 which are embedded by overmolding in the bottom 34 of the cover 32 and which each comprise a contact head 50, 52 which both extend in a plane perpendicular to the axis XX inside the housing 38.

Selon un agencement connu, la tige 31 du noyau mobile 12 porte un contact mobile 54 en forme de plaque rectangulaire qui est percé en son centre 56 pour le passage d'une portion de plus grand diamètre 58 de la tige de commande 31.According to a known arrangement, the rod 31 of the movable core 12 carries a movable contact 54 in the form of a rectangular plate which is pierced at its center 56 for the passage of a portion of larger diameter 58 of the control rod 31.

Dans la position de repos illustrée sur la figure 1, le noyau 12, la tige 31 et le contact mobile 54 sont rappelés élastiquement (vers la gauche en considérant la figure 1) par un ressort de rappel (non représenté) agencé entre le noyau mobile 12 et la face radiale d'extrémité 15 de l'armature 14.In the rest position illustrated in Figure 1, the core 12, the rod 31 and the movable contact 54 are resiliently recalled (to the left when considering Figure 1) by a return spring (not shown) arranged between the movable core 12 and the radial end face 15 of the frame 14.

En position active, c'est-à-dire lorsque la bobine 16 est alimentée, le noyau 12 et la tige 31 entraînent, de la gauche vers la droite en considérant la figure 1, le contact mobile 54 pour qu'il établisse, par sa face 60, un contact entre les têtes 50 et 52 des bornes 46 et 48.In the active position, that is to say when the coil 16 is supplied, the core 12 and the rod 31 drive, from left to right considering FIG. 1, the movable contact 54 so that it establishes, by its face 60, a contact between the heads 50 and 52 of the terminals 46 and 48.

Dans le mode de réalisation conforme aux enseignements de l'invention illustré sur les figures, le contact mobile 54 prend appui, au repos, par sa face radiale opposée 62 contre une portion conique en vis-à-vis 64 formée dans la face radiale 66 d'un bouchon intermédiaire 68 en forme générale de disque.In the embodiment according to the teachings of the invention illustrated in the figures, the movable contact 54 bears, at rest, by its opposite radial face 62 against a conical facing portion 64 formed in the radial face 66 an intermediate plug 68 in the general shape of a disc.

Le bouchon 68 est une pièce en matériau isolant qui est montée serrée par son bord annulaire cylindrique 70 dans la paroi interne du logement 38 de façon à immobiliser axialement le bouchon 68 par rapport à la jupe 36.The plug 68 is a piece of insulating material which is mounted clamped by its cylindrical annular edge 70 in the internal wall of the housing 38 so as to axially immobilize the plug 68 relative to the skirt 36.

Dans sa partie centrale, le bouchon 68 comporte un manchon coaxial 72 de guidage en coulissement d'une portion élargie 74 de la tige de commande 31.In its central part, the plug 68 comprises a coaxial sleeve 72 for sliding guide of an enlarged portion 74 of the control rod 31.

La face radiale 67 du bouchon 68, opposée à la face 66, délimite axialement la cavité 42 dans laquelle, conformément aux enseignements de l'invention, est agencé un circuit électronique de commande 76 du contacteur.The radial face 67 of the plug 68, opposite the face 66, axially delimits the cavity 42 in which, in accordance with the teachings of the invention, an electronic control circuit 76 of the contactor is arranged.

Comme on peut le voir aux figures 3 et 4, le circuit 76 est constitué par une plaque à circuit imprimé 78 en forme de disque percé en son centre par un trou 79 pour permettre le passage de la portion 74 de la tige de commande 31.As can be seen in FIGS. 3 and 4, the circuit 76 is constituted by a printed circuit board 78 in the form of a disc pierced in its center by a hole 79 to allow the passage of the portion 74 of the control rod 31.

La carte 78 porte sur sa face radiale 80 tournée vers le bouchon intermédiaire 68, différents composants électriques et électroniques. Parmi ceux-ci, on distingue un connecteur électrique 82 comportant quatre contacts femelles alignés, des résistances, condensateurs, etc., une sortie 84 destinée à être reliée à la masse électrique, une entrée 86 destinée à être reliée au pôle positif de la batterie du véhicule ;

  • une sortie 88 en direction du point commun de la bobine du contacteur, et un trou 90 permettant le passage de la sortie de la bobine vers la borne reliée au pôle positif de la batterie du véhicule.
The card 78 carries on its radial face 80 facing the intermediate plug 68, various electrical and electronic components. Among these, there is an electrical connector 82 comprising four aligned female contacts, resistors, capacitors, etc., an output 84 intended to be connected to the electrical ground, an input 86 intended to be connected to the positive pole of the vehicle battery;
  • an output 88 towards the common point of the coil of the contactor, and a hole 90 allowing passage of the output of the coil to the terminal connected to the positive pole of the vehicle battery.

Comme on peut le voir sur la figure 3, certains composants 92 et 94 de plus grandes dimensions, s'étendent axialement depuis la face radiale 80 sur une longueur axiale relativement importante.As can be seen in FIG. 3, certain components 92 and 94 of larger dimensions extend axially from the radial face 80 over a relatively large axial length.

Comme cela est représenté aux figures 1 et 2, une couche de protection en résine 96 est surmoulée sur la carte 78 et sur les composants de petites dimensions montés sur la face 80.As shown in FIGS. 1 and 2, a protective layer of resin 96 is overmolded on the card 78 and on the components of small dimensions mounted on the face 80.

Comme on peut le voir sur la figure 2, le circuit électronique de commande 76 est fixé sur le contacteur par soudage en 88 sur la broche de sortie du point commun de la bobine 18.As can be seen in FIG. 2, the electronic control circuit 76 is fixed to the contactor by welding at 88 on the output pin of the common point of the coil 18.

Le circuit électronique de commande 76 est donc agencé pour l'essentiel dans la cavité 42 à l'exception de ses composants de grandes dimensions 92 et 94 qui s'étendent axialement à travers un orifice 100 formé dans la partie principale en forme de disque du bouchon intermédiaire 68 et qui est décalé radialement vers l'extérieur par rapport à l'un des bords longitudinaux 53 du contact mobile 54 qui, selon une conception connue, est une plaque rectangulaire délimitée par deux bords longitudinaux parallèles 53.The electronic control circuit 76 is therefore essentially arranged in the cavity 42 with the exception of its large components 92 and 94 which extend axially through an orifice 100 formed in the main disc-shaped part of the intermediate plug 68 and which is offset radially outwards with respect to one of the longitudinal edges 53 of the movable contact 54 which, according to a known design, is a rectangular plate delimited by two parallel longitudinal edges 53.

Les composants 92 et 94 s'étendent ainsi axialement au-delà du bouchon 68 à l'intérieur du logement 38 qui reçoit le contact mobile 54.The components 92 and 94 thus extend axially beyond the plug 68 inside the housing 38 which receives the movable contact 54.

Le bouchon 68 comporte également un orifice 102 diamétralement opposé à l'orifice 100 et qui débouche également radialement vers l'extérieur dans le bord 70 du bouchon 68, qui permet le passage de quatre broches de raccordement électrique 104.The plug 68 also has an orifice 102 diametrically opposite to the orifice 100 and which also opens radially outward into the edge 70 of the plug 68, which allows the passage of four electrical connection pins 104.

Les broches 104 sont noyées dans une portion décalée axialement 106 du fond 34 du couvercle 32 et elles comportent chacune un premier tronçon 108 qui s'étend axialement en direction du circuit électronique de commande 76 pour être reçu dans l'un des contacts femelle du connecteur 82. Chaque broche 104 comporte également un tronçon opposé 110 qui s'étend axialement à l'extérieur du couvercle 32 pour son raccordement avec un connecteur (non représenté).The pins 104 are embedded in an axially offset portion 106 of the bottom 34 of the cover 32 and they each comprise a first section 108 which extends axially in the direction of the electronic control circuit 76 to be received in one of the female contacts of the connector 82. Each pin 104 also includes an opposite section 110 which extends axially outside the cover 32 for its connection with a connector (not shown).

Ainsi, lors du montage du sous-ensemble constitué par le capot 32, le contact mobile 54, la tige 31 et le bouchon intermédiaire 68 sur l'autre sous-ensemble constitué essentiellement par l'armature 14, le noyau fixe 22 et le circuit électronique de commande 76, les tronçons 108 des broches 104 viennent se connecter directement dans les contacts femelle du connecteur 82.Thus, during assembly of the sub-assembly constituted by the cover 32, the movable contact 54, the rod 31 and the intermediate plug 68 on the other sub-assembly consisting essentially of the frame 14, the fixed core 22 and the circuit control electronics 76, the sections 108 of the pins 104 are connected directly in the female contacts of the connector 82.

Afin de faciliter cet assemblage, il est bien entendu possible de prévoir des moyens (non représentés) d'indexation en position angulaire du capot 32 par rapport à l'armature 14.In order to facilitate this assembly, it is of course possible to provide means (not shown) for indexing the angular position of the cover 32 relative to the frame 14.

Lors de l'assemblage des deux sous-ensembles, la tige de commande 31, 74 traverse le circuit électronique de commande 76 grâce au perçage central 79 de la plaque 78, la tige de commande 31 traversant ensuite de façon conventionnelle le perçage 30 du noyau fixe 22 pour venir coopérer avec le noyau mobile 12.When assembling the two sub-assemblies, the control rod 31, 74 passes through the electronic control circuit 76 by virtue of the central bore 79 of the plate 78, the control rod 31 then conventionally passing through the bore 30 of the core fixed 22 to come to cooperate with the movable core 12.

Grâce à la conception selon l'invention, on comprend que le circuit électronique de commande ne nécessite plus de boîtier indépendant à implanter sur le véhicule.Thanks to the design according to the invention, it is understood that the electronic control circuit no longer requires an independent box to be installed on the vehicle.

Le circuit électronique de commande 76 est protégé contre les projections d'eau et la corrosion grâce aux moyens d'étanchéité propres au contacteur.The electronic control circuit 76 is protected against water splashes and corrosion by means of the sealing means specific to the contactor.

On a également supprimé les connexions électriques externes entre le circuit électronique de commande et le contacteur.The external electrical connections between the electronic control circuit and the contactor have also been eliminated.

Le capot 32 du contacteur 10 conserve sa forme conventionnelle en forme générale de pot cylindrique et ses moyens propres de raccordement électrique sont inchangés.The cover 32 of the contactor 10 retains its conventional shape in the general shape of a cylindrical pot and its own means of electrical connection are unchanged.

La plus grande partie des composants d'un contacteur selon l'état de la technique sont conservés.Most of the components of a contactor according to the state of the art are preserved.

Enfin, la longueur axiale hors tout du contacteur 10 conforme aux enseignements de l'invention n'est que très faiblement augmentée par rapport à un contacteur conventionnel à circuit électronique de commande extérieur.Finally, the overall axial length of the contactor 10 according to the teachings of the invention is only very slightly increased compared to a conventional contactor with an external electronic control circuit.

Claims (12)

Contacteur (10) de démarreur de véhicule automobile du type comportant une armature annulaire cylindrique (14) formant boîtier dans laquelle est agencée une bobine (18) qui actionne un noyau mobile (12) axialement qui agit sur une tige de commande (31) qui traverse en son centre (20, 30) un noyau fixe (22) en forme de disque (24) agencé à l'une (28) des extrémités axiales de l'armature (14), du type dans lequel la tige (31) commande les déplacements d'un contact mobile (54) qui est susceptible de coopérer avec deux bornes de contact fixes (50, 52) appartenant au circuit d'alimentation du moteur du démarreur et qui sont agencées dans le fond (34) d'un capot (32) en forme générale de pot cylindrique dont la jupe (36) délimite un logement (38) dans lequel est agencé le contact mobile (54), et du type comportant un circuit électronique de commande du contacteur (10) comportant un support (78), notamment une carte à circuit imprimé, et des composants (82, 92,94) portés par le support (78), caractérisé en ce que le circuit électronique de commande (76) est agencé axialement à l'intérieur (42) du capot (32) du contacteur (10).Motor vehicle starter contactor (10) of the type comprising a cylindrical annular armature (14) forming a housing in which is arranged a coil (18) which actuates an axially movable core (12) which acts on a control rod (31) which crosses in its center (20, 30) a fixed core (22) in the form of a disc (24) arranged at one (28) of the axial ends of the frame (14), of the type in which the rod (31) controls the movements of a movable contact (54) which is capable of cooperating with two fixed contact terminals (50, 52) belonging to the supply circuit of the starter motor and which are arranged in the bottom (34) of a cover (32) in the general shape of a cylindrical pot whose skirt (36) delimits a housing (38) in which the movable contact (54) is arranged, and of the type comprising an electronic circuit for controlling the contactor (10) comprising a support (78), in particular a printed circuit board, and components (82, 92, 94) carried p ar the support (78), characterized in that the electronic control circuit (76) is arranged axially inside (42) of the cover (32) of the contactor (10). Contacteur selon la revendication 1, caractérisé en ce que le support (78) du circuit électronique de commande (76) est un disque percé en son centre (79) pour permettre le passage du corps de la tige de commande (31, 58, 74) et qui est agencé axialement entre le noyau fixe (22) et le contact mobile (54).Contactor according to claim 1, characterized in that the support (78) of the electronic control circuit (76) is a disc pierced in its center (79) to allow the passage of the body of the control rod (31, 58, 74 ) and which is arranged axially between the fixed core (22) and the movable contact (54). Contacteur selon la revendication 2 prise en combinaison avec la revendication 1, caractérisé en ce que le logement (38) du capot (32) dans lequel est agencé le contact mobile (54) est délimité axialement par le fond (34) du capot (32) et par un bouchon (68) en forme de disque fixé axialement dans la jupe (36) du capot (32) et troué en son centre (72) pour le passage de la tige de commande, et en ce que la jupe (36) du capot (32) se prolonge axialement (40) au-delà du bouchon (68) pour délimiter une cavité (42) de forme générale cylindrique dans laquelle est agencé le circuit électronique de commande (76).Contactor according to claim 2 taken in combination with claim 1, characterized in that the housing (38) of the cover (32) in which the movable contact (54) is arranged is axially delimited by the bottom (34) of the cover (32 ) and by a disc-shaped plug (68) fixed axially in the skirt (36) of the cover (32) and perforated in its center (72) for the passage of the control rod, and in that the skirt (36) of the cover (32) is extended axially (40) beyond the plug (68) to delimit a cavity (42) of generally cylindrical shape in which the electronic control circuit (76) is arranged. Contacteur selon la revendication 3, caractérisé en ce que, en position de repos, le contact mobile (54) est en appui axial contre une portion en vis-à-vis (64) du bouchon (68).Contactor according to claim 3, characterized in that, in the rest position, the movable contact (54) is in axial abutment against a portion facing (64) of the plug (68). Contacteur selon l'une des revendications 3 ou 4, caractérisé en ce que le bouchon (68) comporte un manchon central (72) de guidage en coulissement de la tige de commande (74).Contactor according to one of claims 3 or 4, characterized in that the plug (68) comprises a central sleeve (72) for sliding guide of the control rod (74). Contacteur selon l'une quelconque des revendications 3 à 5, caractérisé en ce que le corps du bouchon (68) comporte au moins un orifice (100) pour le passage de certains des composants (92, 94) du circuit électronique de commande (76) qui s'étendent axialement à l'intérieur de la cavité (42) et du logement (38) du contact mobile (54).Contactor according to any one of Claims 3 to 5, characterized in that the plug body (68) has at least one orifice (100) for the passage of some of the components (92, 94) of the electronic control circuit (76 ) which extend axially inside the cavity (42) and the housing (38) of the movable contact (54). Contacteur selon l'une quelconque des revendications 3 à 6, caractérisé en ce que le corps du bouchon (68) comporte un orifice (102) pour le passage de broches (104, 108) de raccordement électrique qui s'étendent axialement entre le circuit électronique de commande (76) et le fond (34, 106) du capot (32).Contactor according to any one of Claims 3 to 6, characterized in that the plug body (68) has an orifice (102) for the passage of electrical connection pins (104, 108) which extend axially between the circuit control electronics (76) and the bottom (34, 106) of the cover (32). Contacteur selon la revendication 7, caractérisé en ce que les broches de raccordement (104) sont noyées dans le fond (34, 106) du capot en matériau isolant (32) et elles s'étendent axialement d'une part à l'intérieur du capot (32) en direction du circuit électronique de commande (76, 82) et, d'autre part, à l'extérieur du capot.Contactor according to claim 7, characterized in that the connection pins (104) are embedded in the bottom (34, 106) of the cover made of insulating material (32) and they extend axially on the one hand inside the cover (32) in the direction of the electronic control circuit (76, 82) and, on the other hand, outside the cover. Contacteur selon l'une des revendications 7 ou 8, caractérisé en ce que le contact mobile (54) est réalisé sous la forme d'une plaque rectangulaire dont la longueur est parallèle à un diamètre du contacteur (10), et en ce que ledit orifice (100, 102) est décalé radialement par rapport à un bord longitudinal (53) du contact mobile (54)Contactor according to one of claims 7 or 8, characterized in that the movable contact (54) is produced in the form of a rectangular plate whose length is parallel to a diameter of the contactor (10), and in that said orifice (100, 102) is offset radially with respect to a longitudinal edge (53) of the movable contact (54) Contacteur selon l'une quelconque des revendications précédentes, caractérisé en ce que le bord annulaire d'extrémité libre (43) de la portion (40) de la jupe (36) du capot qui se prolonge axialement au-delà du bouchon (38) prend appui axialement contre le noyau fixe (25).Contactor according to any one of the preceding claims, characterized in that the free end annular edge (43) of the portion (40) of the skirt (36) of the cover which extends axially beyond the plug (38) bears axially against the fixed core (25). Contacteur selon la revendication 2, caractérisé en ce que le support (78) du circuit électronique de commande (76) est fixé par soudage sur un élément appartenant à la bobine (18) et qui s'étend axialement à travers le noyau fixe.Contactor according to claim 2, characterized in that the support (78) of the electronic control circuit (76) is fixed by welding to an element belonging to the coil (18) and which extends axially through the fixed core. Démarreur de véhicule automobile caractérisé en ce qu'il est équipé d'un contacteur conforme à l'une quelconque des revendications précédentes.Motor vehicle starter characterized in that it is equipped with a contactor according to any one of the preceding claims.
EP96401392A 1995-06-27 1996-06-25 Starter contactor having an electronic circuit integrated to the contactor, and vehicle starter having such a contactor Expired - Lifetime EP0751545B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9507808A FR2736100B1 (en) 1995-06-27 1995-06-27 STARTER CONTACTOR COMPRISING AN ELECTRONIC CONTROL CIRCUIT INTEGRATED WITH THE CONTACTOR, AND VEHICLE STARTER COMPRISING SUCH A CONTACTOR
FR9507808 1995-06-27

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EP0751545A1 true EP0751545A1 (en) 1997-01-02
EP0751545B1 EP0751545B1 (en) 2001-12-19

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US (1) US5703551A (en)
EP (1) EP0751545B1 (en)
JP (1) JP4598202B2 (en)
CN (1) CN1076440C (en)
DE (1) DE69618090T2 (en)
FR (1) FR2736100B1 (en)

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EP0859393A1 (en) * 1997-02-14 1998-08-19 Valeo Equipements Electriques Moteur Starter contactor for motor vehicule having perfectionate means comprising a centering stationary core
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GB2553976B (en) * 2015-04-13 2021-05-19 Comstar Automotive Tech Pvt Ltd Arrangement of solenoid assembly with an electronic switch for a starter motor

Also Published As

Publication number Publication date
DE69618090T2 (en) 2002-07-11
EP0751545B1 (en) 2001-12-19
JP4598202B2 (en) 2010-12-15
DE69618090D1 (en) 2002-01-31
JPH09105372A (en) 1997-04-22
CN1076440C (en) 2001-12-19
CN1143159A (en) 1997-02-19
FR2736100B1 (en) 1997-08-01
US5703551A (en) 1997-12-30
FR2736100A1 (en) 1997-01-03

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