EP0751545B1 - 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
EP0751545B1
EP0751545B1 EP96401392A EP96401392A EP0751545B1 EP 0751545 B1 EP0751545 B1 EP 0751545B1 EP 96401392 A EP96401392 A EP 96401392A EP 96401392 A EP96401392 A EP 96401392A EP 0751545 B1 EP0751545 B1 EP 0751545B1
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EP
European Patent Office
Prior art keywords
contactor
cover piece
axially
plug
control circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP96401392A
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German (de)
French (fr)
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EP0751545A1 (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 date
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Publication of EP0751545A1 publication Critical patent/EP0751545A1/en
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Publication of EP0751545B1 publication Critical patent/EP0751545B1/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 contactor vehicle internal combustion engine starter automobile.
  • a contactor starter has a cylindrical annular armature forming a housing in which a coil is arranged which actuates an axially movable core which acts on a rod control which crosses in its center a fixed shaped core disc arranged at one of the axial ends of the frame, of the type in which the rod and the movable core controls the displacements of a mobile contact which is likely to cooperate with two fixed contact terminals belonging to the starter motor supply circuit and which are arranged in the bottom of a cover in the general shape of a pot cylindrical whose skirt defines a housing in which is arranged the movable contact.
  • an electronic circuit for controlling the contactor comprising a support, produced for example under the form of a printed circuit board, and components carried by the support.
  • the electronic circuit of control is placed inside a box perfectly waterproof which is then attached to the outside of the starter, on the support of the latter, on the contactor see, for example, FR-A- 2 679 717 or on the cylinder head of the electric starter motor.
  • the circuit box control electronics can also be attached to the vehicle body in the engine compartment.
  • the invention offers a starter contactor of the type mentioned previously, characterized in that the electronic circuit of control is arranged axially inside the cover of the contactor.
  • the invention also provides a starter for motor vehicle characterized in that it is equipped with a contactor in accordance with the teachings of the invention.
  • FIGS. 1 and 2 show a contactor electromagnetic 10 which is designed to equip a starter (not shown) of a vehicle internal combustion engine automobile.
  • the contactor 10 comprises a movable core 12 which is connected to one end of a pivoting lever (not shown) of which the other end is connected to the launcher coach of the starter.
  • the electromagnetic contactor 10 includes a external frame 14, also called tank or case which is generally cylindrical annular in axis X-X and the interior of which is notably arranged a coil ring finger 16.
  • the movable core is slidably mounted in a skirt tubular 18 which is fixed on the central portion 20 of a core fixed 22 in general disc shape, the main part of which plane and annular 24 which extends in a perpendicular plane to the axis X-X is fixed in a housing 26 formed at the end axial 28 of the frame 14.
  • the central part 20 has a central bore 30 for the sliding guide of a control rod 31, along the X-X axis, and on which the moving 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 a general pot shape cylindrical with axis X-X consisting of a radial end bottom 34 perpendicular to the X-X axis and by a side skirt cylindrical 36.
  • the main part of the skirt 36 defines a housing internal cylindrical 38 and its free end is constituted by a larger diameter end portion 40 which delimits an internal cavity 42 of generally cylindrical shape and the annular end edge 43 is in axial abutment against the face opposite 25 of the disc-shaped part 24 of the core fixed 22.
  • the watertight mounting of the cover 32 on the frame 14 is produced by radial crimping towards the inside of a portion thinned axial end 44 of the armature 14.
  • the contactor 10 has two fixed terminals made of conductive material 46 and 48 which are embedded by overmolding in the bottom 34 of the cover 32 and which each have a contact head 50, 52 which both extend in a plane perpendicular to the axis X-X inside the housing 38.
  • the rod 31 of the movable core 12 carries a movable contact 54 in the form of a plate rectangular which is drilled in its center 56 for the passage of a larger diameter portion 58 of the rod command 31.
  • the core 12 and the rod 31 drive, from the left to the right considering figure 1, the movable contact 54 so that it establishes, by its face 60, a contact between the heads 50 and 52 of terminals 46 and 48.
  • the movable contact 54 is supported, at rest, by its opposite radial face 62 against a conical facing portion 64 formed in the face radial 66 of an intermediate plug 68 in the general form of disk.
  • the plug 68 is a piece of insulating material which is tightly mounted by its cylindrical annular edge 70 in the internal wall of the housing 38 so as to immobilize axially the plug 68 relative to the skirt 36.
  • the plug 68 includes a coaxial sleeve 72 for sliding guide of a portion enlarged 74 of the control rod 31.
  • circuit 76 consists of a printed circuit board 78 in the form of disc drilled 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 molded onto the card 78 and on the components of small dimensions mounted on the face 80.
  • circuit control electronics 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 arranged essentially in cavity 42 with the exception of its large components 92 and 94 which extend axially through an orifice 100 formed in the part main disc-shaped intermediate plug 68 and which is offset radially outward from one 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.
  • 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 the orifice 100 and which opens also radially outward in the edge 70 of the plug 68, which allows the passage of four pins of electrical connection 104.
  • the pins 104 are embedded in an offset portion axially 106 from the bottom 34 of the cover 32 and they comprise each a first section 108 which extends axially in direction of the electronic control circuit 76 to be received in one of the female contacts of connector 82. Each pin 104 also has an opposite section 110 which extends axially outside the cover 32 for its connection with a connector (not shown).
  • the rod 31, 74 crosses the electronic circuit of control 76 thanks to the central bore 79 of the plate 78, the control rod 31 then passing conventionally the bore 30 of the fixed core 22 to cooperate with the movable core 12.
  • the electronic control circuit 76 is protected against water splashes and corrosion thanks to the means seal specific to the contactor.
  • the cover 32 of the contactor 10 retains its shape conventional 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 in accordance with the teachings of the invention is only very slightly increased compared to a conventional contactor with 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)
  • Push-Button Switches (AREA)
  • Motor Or Generator Frames (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Description

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

Selon une conception connue, un contacteur de démarreur comporte une armature annulaire cylindrique formant boítier 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 contactor starter has a cylindrical annular armature forming a housing in which a coil is arranged which actuates an axially movable core which acts on a rod control which crosses in its center a fixed shaped core disc arranged at one of the axial ends of the frame, of the type in which the rod and the movable core controls the displacements of a mobile contact which is likely to cooperate with two fixed contact terminals belonging to the starter motor supply circuit and which are arranged in the bottom of a cover in the general shape of a pot cylindrical whose skirt defines a housing in which is arranged the movable contact.

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 under the form of a printed circuit board, and components carried by the support.

Selon une conception connue, le circuit électronique de commande est disposé à l'intérieur d'un boítier parfaitement étanche qui est ensuite fixé à l'extérieur du démarreur, sur le support de ce dernier, sur le contacteur voir, par exemple, FR-A- 2 679 717 ou sur la culasse du moteur électrique du démarreur. Le boítier 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 circuit of control is placed inside a box perfectly waterproof which is then attached to the outside of the starter, on the support of the latter, on the contactor see, for example, FR-A- 2 679 717 or on the cylinder head of the electric starter motor. The circuit box control electronics can also be attached to the vehicle body in the engine compartment.

Il est alors nécessaire de prévoir des fils ou câbles qui relient le boítier 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 necessary vehicle components to the engine start control such as the ignition key contact, the anti-theft system, an electronic calculation unit for injection and ignition control, etc.

La disposition du circuit électronique de commande dans un boítier 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 layout of the electronic control circuit in an independent box therefore leads to the realization of a additional component, which is bulky, which requires to use 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 offers a starter contactor of the type mentioned previously, characterized in that the electronic circuit of control 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 disc drilled in its center to allow the passage of the body of the control rod of the movable core 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 bears axially against a portion facing the plug;
  • the plug comprises a central sleeve for sliding guide of the control rod;
  • the plug body has orifices for the passage of some of the components of the electronic control circuit 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 starter for motor vehicle 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 apparaítront 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 a contactor electromagnetic 10 which is designed to equip a starter (not shown) of a vehicle internal combustion engine automobile.

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'entraíneur du lanceur du démarreur.The contactor 10 comprises a movable core 12 which is connected to one end of a pivoting lever (not shown) of which the other end is connected to the launcher coach of the starter.

Le contacteur électromagnétique 10 comporte une armature extérieure 14, également appelée cuve ou boítier 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 includes a external frame 14, also called tank or case which is generally cylindrical annular in axis X-X and the interior of which is notably arranged a coil ring finger 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 skirt tubular 18 which is fixed on the central portion 20 of a core fixed 22 in general disc shape, the main part of which plane and annular 24 which extends in a perpendicular plane to the axis X-X is fixed in a housing 26 formed at the end axial 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 has a central bore 30 for the sliding guide of a control rod 31, along the X-X axis, and on which the moving 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 a general pot shape cylindrical with axis X-X consisting of a radial end bottom 34 perpendicular to the X-X axis and by a side skirt cylindrical 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 defines a housing internal cylindrical 38 and its free end is constituted by a larger diameter end portion 40 which delimits an internal cavity 42 of generally cylindrical shape and the annular end edge 43 is in axial abutment against the face opposite 25 of the disc-shaped part 24 of the core fixed 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 watertight mounting of the cover 32 on the frame 14 is produced by radial crimping towards the inside of a portion thinned axial end 44 of the armature 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 has two fixed terminals made of conductive material 46 and 48 which are embedded by overmolding in the bottom 34 of the cover 32 and which each have a contact head 50, 52 which both extend in a plane perpendicular to the axis X-X 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 plate rectangular which is drilled in its center 56 for the passage of a larger diameter portion 58 of the rod command 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, rod 31 and movable contact 54 are recalled elastically (to the left when considering figure 1) by a return spring (not shown) arranged between the core mobile 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 entraínent, 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 powered, the core 12 and the rod 31 drive, from the left to the right considering figure 1, the movable contact 54 so that it establishes, by its face 60, a contact between the heads 50 and 52 of 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 in accordance with the teachings of the invention illustrated in the figures, the movable contact 54 is supported, at rest, by its opposite radial face 62 against a conical facing portion 64 formed in the face radial 66 of an intermediate plug 68 in the general form of disk.

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 tightly mounted by its cylindrical annular edge 70 in the internal wall of the housing 38 so as to immobilize axially 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 includes a coaxial sleeve 72 for sliding guide of a portion enlarged 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 to the teachings of the invention, is arranged a circuit contactor control electronics 76.

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 Figures 3 and 4, circuit 76 consists of a printed circuit board 78 in the form of disc drilled 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 battery. of the vehicle ;
  • an output 88 towards the common point of the coil of the contactor, and a hole 90 allowing the 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 Figure 3, some components 92 and 94 of larger dimensions, extend axially from the radial face 80 over an axial length relatively large.

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 Figures 1 and 2, a protective layer of resin 96 is molded onto 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 Figure 2, the circuit control electronics 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 arranged essentially in cavity 42 with the exception of its large components 92 and 94 which extend axially through an orifice 100 formed in the part main disc-shaped intermediate plug 68 and which is offset radially outward from one 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. 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 the orifice 100 and which opens also radially outward in the edge 70 of the plug 68, which allows the passage of four pins of electrical connection 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 offset portion axially 106 from the bottom 34 of the cover 32 and they comprise each a first section 108 which extends axially in direction of the electronic control circuit 76 to be received in one of the female contacts of connector 82. Each pin 104 also has 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 the assembly of the sub-assembly constituted by the cover 32, the movable contact 54, the rod 31 and the plug intermediate 68 on the other subset consisting essentially by the armature 14, the fixed core 22 and the circuit control electronics 76, the sections 108 of the pins 104 are connected directly in the contacts connector female 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 in 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 rod 31, 74 crosses the electronic circuit of control 76 thanks to the central bore 79 of the plate 78, the control rod 31 then passing conventionally the bore 30 of the fixed core 22 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 boítier 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 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 thanks to the means seal specific to the contactor.

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

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 shape conventional 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 kept.

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 in accordance with the teachings of the invention is only very slightly increased compared to a conventional contactor with external electronic control circuit.

Claims (12)

  1. A motor vehicle starter contactor (10), of the type comprising an annular cylindrical armature (14) which constitutes a casing, in which there is arranged a coil (18) that actuates an axially movable core (12), which acts on a control rod (31) that passes through the centre (20, 30) of a fixed core (22) in the form of a disc (24), which is arranged at one of the axial ends (28) of the armature (14), of the type in which the rod (31) controls displacements of a moving contact (54) which is arranged to cooperate with two fixed contact terminals (50, 52) in the power circuit for the motor of the starter, which are disposed in the base (34) of a cover piece (32) having the general form of a cylindrical pot, the skirt portion (36) of which delimits a housing (38) in which the moving contact (54) is arranged, and of the type which includes an electronic control circuit (76) for the contactor (10), comprising a support member (78), in particular a printed circuit board, together with components (82, 92, 94) carried by the support member (78), characterised in that the electronic control circuit (76) is disposed axially in the interior (42) of the cover piece (32) of the contactor (10).
  2. A contactor according to Claim 1, characterised in that the support member (78) of the electronic control circuit (76) is a disc having a central through hole (79) to permit the body of the control rod (31, 58, 74) to pass through it, and which is disposed axially between the fixed core (22) and the moving contact (54).
  3. A contactor according to Claim 2, characterised in that the housing (38) of the cover piece (32), in which the moving contact (54)is arranged, is delimited axially by the base (34) of the cover piece (32) and by a plug (68) in the form of a disc, which is fixed axially in the skirt portion (36) of the cover piece (32) and has a central hole (72) for the control rod to pass through, and in that the skirt portion (36) of the cover piece (32) has an axial extension (40) beyond the plug (68) to define a cavity (42) of generally cylindrical form, in which the electronic control circuit (76) is arranged.
  4. A contactor according to Claim 3, characterised in that, in the rest position, the moving contact (54) is in axial engagement against a facing portion (64) of the plug (68).
  5. A contactor according to Claim 3 or Claim 4, characterised in that the plug (68) has a central sleeve portion (72) for guiding the control rod (74) in sliding movement.
  6. A contactor according to any one of Claims 3 to 5, characterised in that the body of the plug (68) has at least one aperture (100) to permit passage therethrough of some of the components (92, 94) of the electronic control circuit (76), which are disposed axially inside the cavity (42) and housing (38) of the moving contact (54).
  7. A contactor according to any one of Claims 3 to 6, characterised in that the body of the plug (6) has an aperture (102) for the passage therethrough of electrical connectors (104, 108) which extend axially between the electronic control circuit (76) and the base (34, 106) of the cover piece (32).
  8. A contactor according to Claim 7, characterised in that the connectors (104) are encapsulated in the base portion (34, 106) of the cover piece (32), which is of insulating material, and they extend axially, partly within the cover piece (32), towards the electronic control circuit (76, 82), and partly outside the cover piece.
  9. A contactor according to Claim 7 or Claim 8, characterised in that the moving contact (54) is made in the form of a rectangular plate, the lengthwise dimension of which is parallel to a diameter of the contactor (10), and in that the said aperture (100, 102) is offset radially with respect to a longitudinal edge (53) of the moving contact (54).
  10. A contactor according to any one of the preceding Claims, characterised in that the annular free terminal edge (43) of that part (40) of the skirt portion (36) of the cover piece that is extended axially beyond the plug (68) is in axial engagement against the fixed core (25).
  11. A contactor according to Claim 2, characterised in that the support member (78) of the electronic control circuit (76) is secured by welding on an element which is part of the coil (18) and which extends axially through the fixed core.
  12. A motor vehicle starter, characterised 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

Publications (2)

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

Family

ID=9480495

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96401392A Expired - Lifetime EP0751545B1 (en) 1995-06-27 1996-06-25 Starter contactor having an electronic circuit integrated to the contactor, and vehicle starter having such a contactor

Country Status (6)

Country Link
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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FR2982911B1 (en) * 2011-11-18 2013-11-15 Valeo Equip Electr Moteur ELECTRICAL STARTER WITH ELECTRONIC INTEGRATED FILTER FOR INTERNAL COMBUSTION ENGINE
UA111081C2 (en) * 2012-07-02 2016-03-25 Шалтбау Гмбх Electrical contactor with flywheel drive and method for switching an electrical contactor on and off
CN103943414B (en) * 2013-01-23 2018-02-27 博世汽车部件(长沙)有限公司 Electromagnetic switch and vehicle starter
JP5962575B2 (en) * 2013-04-23 2016-08-03 株式会社デンソー Starter
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Also Published As

Publication number Publication date
FR2736100B1 (en) 1997-08-01
DE69618090D1 (en) 2002-01-31
CN1143159A (en) 1997-02-19
US5703551A (en) 1997-12-30
FR2736100A1 (en) 1997-01-03
JPH09105372A (en) 1997-04-22
EP0751545A1 (en) 1997-01-02
JP4598202B2 (en) 2010-12-15
DE69618090T2 (en) 2002-07-11
CN1076440C (en) 2001-12-19

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