EP0749144B1 - Starter with a contactor having perfectionate means for earthing in rest position, and contactor having such means - Google Patents

Starter with a contactor having perfectionate means for earthing in rest position, and contactor having such means Download PDF

Info

Publication number
EP0749144B1
EP0749144B1 EP96401250A EP96401250A EP0749144B1 EP 0749144 B1 EP0749144 B1 EP 0749144B1 EP 96401250 A EP96401250 A EP 96401250A EP 96401250 A EP96401250 A EP 96401250A EP 0749144 B1 EP0749144 B1 EP 0749144B1
Authority
EP
European Patent Office
Prior art keywords
contact
movable contact
contactor
supply terminal
starter
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
EP96401250A
Other languages
German (de)
French (fr)
Other versions
EP0749144A1 (en
Inventor
Gérard Vilou
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
Original Assignee
Valeo Equipements Electriques Moteur SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Valeo Equipements Electriques Moteur SAS filed Critical Valeo Equipements Electriques Moteur SAS
Publication of EP0749144A1 publication Critical patent/EP0749144A1/en
Application granted granted Critical
Publication of EP0749144B1 publication Critical patent/EP0749144B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/003—Starters comprising a brake mechanism
    • 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
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
    • 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
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N15/067—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement the starter comprising an electro-magnetically actuated lever
    • 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

Definitions

  • the invention relates to a vehicle starter. automobile.
  • the invention relates more particularly to a starter of a motor vehicle, of the type comprising a contactor provided with a movable contact capable of being moved in translation by electromagnetic means between a rest position, in which the contact is pressing against a fixed conductive element connected to the electrical ground of the vehicle, and to which it is requested by means of elastic return, and an active position in which the contact mobile establishes an electrical connection between a terminal current input, connected to the positive terminal of the battery vehicle, and a starter motor supply terminal, of the type in which means are provided which, when the mobile contact is in rest position allow to establish a electrical contact between the supply terminal and earth electric vehicle via the mobile contact, and of the type in which the elastic return means are arranged between the movable contact and a support block for terminals made of insulating material.
  • the starter motor which has a inductor winding and an induced winding electrically connected in series, finds itself in an electrical short circuit when the power supply terminal is earthed vehicle.
  • the starter motor rotor is then braked by self-induction.
  • the invention therefore aims to provide a device for the earthing of the power terminal which is easy to assemble and which offers perfect guarantees of operation.
  • the invention provides a starter of the type seen previously, characterized in that the movable contact and the power supply terminal are electrically connected by said elastic return means made of conductive materials.
  • Figures 1 to 3 show a contactor 10 of starter comprising a cylindrical casing 12 of axis X-X, in which is mounted an annular winding 14 which, when traversed by an excitation current, causes in the contactor an axial magnetic flux, in particular thanks to a polar mass 16, and the winding is then likely to cause the axial displacement of a movable core 18.
  • the movable core 18 is therefore capable of sliding between a rest position in which it exceeds axially through a first axial end 20 of the contactor 10, and an active position in which, under the effect of the magnetic field induced by the coil 14, it is almost fully received inside the coil 14.
  • a helical compression spring 22 recalls elastically the movable core 18 towards its rest position.
  • the casing 12 of the contactor 10 is closed at its second opposite axial end 24 by a block 26 of support terminals 28, 30 provided for the motor power supply starter (not shown).
  • the insulating material support block 26 has a cylindrical annular skirt 32 which allows its centering and its attachment to the end 24 of the casing 12 of the contactor 10, and a transverse bottom 34 which axially closes the contactor 10.
  • Terminals 28, 30 are substantially diametrically opposite on the bottom 34, on either side of the X-X axis of the contactor 10.
  • Terminals 28, 30 each have a contact 36, 38 arranged inside the contactor 10, against the transverse bottom 34 of the support block 26 and a stud connection 40, 42, partly threaded and which extends axially through the transverse bottom 34 so as to lead to outside of contactor 10.
  • a first terminal 28 is provided to be connected to the positive terminal (not shown) of a battery vehicle batteries and the second terminal 30 is provided to receive a power cable (not shown) from the starter motor.
  • the support block 26 is made of insulating material and it is fixed, for example by crimping, to the end 24 of the contactor 10.
  • a movable contact 44 consisting of a plate substantially rectangular, can be moved axially inside the space 45 delimited by the wall annular 32 and the bottom 34 of the support block 26, between a rest position in which it bears against the mass pole 16 of contactor 10 and an active position in which the movable contact 44 is simultaneously supported against the heads 36, 38 of the terminals 28, 30 so as to establish between these two terminals 28, 30 an electrical connection which provides power to the starter motor from the vehicle's storage battery.
  • the axial displacement of the movable contact 44 is controlled by a rod 46, which is guided axially in the polar mass 16, and whose movements are controlled by the movable core 18.
  • the movable contact 44 is mounted sliding on the rod 46.
  • the rod 46 controls the movable contact 44 towards its active position via a contact spring 48 which is supported on one side against a shoulder 50 of the rod 46 and on the other side against the axial face 52 of the movable contact 44 which is in abutment against the polar mass 16 when the contact 44 is in the rest position.
  • a return spring 54 allows the rod 46 to be brought back and the movable contact 44 in the rest position.
  • the return spring 54 is supported at the bottom of a cylindrical housing 55 arranged in the center of the transverse bottom 34 of block 26 and axially urges a metal washer 56 which is in abutment against a second shoulder 58 of the rod 46 and against the axial face 60 of the movable contact which cooperates by elsewhere with terminals 28, 30.
  • the metal washer 56 is axially fixed on the rod 46 against the shoulder 58 by a claw washer 62 which is force-fitted onto the axial end 64 of the rod command 46.
  • FIG. 1 more particularly represents a mode of known embodiment of a contactor which makes it possible to connect the terminal supply 38 to the vehicle's electrical ground by via mobile contact 44.
  • a piece of cut sheet metal is provided and folded 66 which has one end 68 interposed between the head contact 38 of terminal 30 and the transverse bottom 34, which comprises a connecting strip 70 which extends axially the along the internal face 72 of the annular wall 32 of the block of support 26, and which has a second end 74 curved radially inward.
  • the second curved radial end 74 is intended to cooperate with the face 52 of the movable contact 44 when it is also in contact with the polar mass 16.
  • This plate 76 is drilled in the center of a hole 78 for the passage of the control rod 46 and it comprises also a bore 80 through which extends axially an outgrowth 82 of the polar mass 16 intended to come in contact with the face 52 of the movable contact 44.
  • the outgrowth 82 is located transversely in the same plane as the curved end 74 of the leg 66 of so as to allow the movable contact to be in the position of rest, simultaneously pressing against the outgrowth 82 of the polar mass 16 and against the curved part 74 of the tab 66 so as to make the electrical connection between the supply terminal 30 and the vehicle's electrical ground.
  • the curved end 74 which extends radially inwards prevents simple mounting by axial stacking of the different elements.
  • this arrangement requires the realization of a outgrowth 82 in the polar mass 16, which implies a indexing during assembly to position it opposite of the hole 80 of the insulating plate 76 and which does not allow that a very small contact surface between the movable contact 44 and the polar mass 16.
  • the starter switch shown in Figures 2 and 3 allows for electrical grounding of the terminal supply 30 of the contactor via the spring reminder 54.
  • a metal tab 84 comprising a end 86 interposed between the head 38 of the strip 30 and the transverse bottom 34, a connecting strip 88 and one end 90 which extends to the bottom of the cylindrical guide housing 55 of the return spring 54 arranged in the transverse bottom 34.
  • the electrical connection is like this made between the supply terminal 30 and the pole ground 16 which is to the electrical ground of the vehicle via tab 84, return spring 54, metal washers 62, 56 and by the mobile contact 44.
  • the movable contact 44 When the starter is requested by the driver, the movable contact 44 is biased by the control rod 46 towards its active position which is represented in FIG. 3 and in which the movable contact 44 is supported by its axial face 60 against terminals 28, 30.
  • the movable contact 44 being urged against the heads of contact 36, 38 by the contact spring 48 linked to the rod 46, the rod 46 has a greater axial displacement stroke to that of the mobile contact 44.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Push-Button Switches (AREA)
  • Motor Or Generator Frames (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Description

L'invention concerne un démarreur de véhicule automobile.The invention relates to a vehicle starter. automobile.

L'invention concerne plus particulièrement un démarreur de véhicule automobile, du type comportant un contacteur muni d'un contact mobile susceptible d'être déplacé en translation par des moyens électromagnétiques entre une position de repos, dans laquelle le contact est en appui contre un élément conducteur fixe relié à la masse électrique du véhicule, et vers laquelle il est sollicité par des moyens de rappel élastique, et une position active dans laquelle le contact mobile établit un raccordement électrique entre une borne d'entrée du courant, reliée à la borne positive de la batterie du véhicule, et une borne d'alimentation du moteur du démarreur, du type dans lequel il est prévu des moyens qui, lorsque le contact mobile est en position de repos permettent d'établir un contact électrique entre la borne d'alimentation et la masse électrique du véhicule par l'intermédiaire du contact mobile, et du type dans lequel les moyens de rappel élastique sont agencés entre le contact mobile et un bloc de support des bornes réalisé en matière isolante.The invention relates more particularly to a starter of a motor vehicle, of the type comprising a contactor provided with a movable contact capable of being moved in translation by electromagnetic means between a rest position, in which the contact is pressing against a fixed conductive element connected to the electrical ground of the vehicle, and to which it is requested by means of elastic return, and an active position in which the contact mobile establishes an electrical connection between a terminal current input, connected to the positive terminal of the battery vehicle, and a starter motor supply terminal, of the type in which means are provided which, when the mobile contact is in rest position allow to establish a electrical contact between the supply terminal and earth electric vehicle via the mobile contact, and of the type in which the elastic return means are arranged between the movable contact and a support block for terminals made of insulating material.

Il est connu de prévoir la mise à la masse électrique de la borne d'alimentation du moteur dès l'interruption du contact établi par le contact mobile.It is known to provide for the electrical grounding of the motor supply terminal as soon as the contact is interrupted established by the mobile contact.

En effet, une telle disposition permet un freinage efficace et rapide du rotor du moteur du démarreur.Indeed, such an arrangement allows braking efficient and fast starter motor rotor.

Ainsi, le moteur du démarreur, qui comporte un bobinage inducteur et un bobinage induit reliés électriquement en série, se retrouve en court-circuit électrique lorsque la borne d'alimentation est mise à la masse électrique du véhicule.So the starter motor, which has a inductor winding and an induced winding electrically connected in series, finds itself in an electrical short circuit when the power supply terminal is earthed vehicle.

Le rotor du moteur du démarreur est alors freiné par auto-induction. The starter motor rotor is then braked by self-induction.

Pour assurer un fonctionnement correct de ce dispositif il est toutefois nécessaire que la mise à la masse de la borne d'alimentation soit interrompue lorsqu'on sollicite le moteur du démarreur sous peine de provoquer un court-circuit.To ensure correct operation of this device it is however necessary that the grounding of the terminal power is interrupted when the motor of the starter on pain of causing a short circuit.

Il a déjà été proposé d'utiliser à cet effet le contact mobile, dont la position est représentative de l'état alimenté ou non de la borne d'alimentation, afin d'effectuer la mise à la masse de la borne d'alimentation lorsqu'il est en position de repos.It has already been proposed to use the contact for this purpose. mobile, whose position is representative of the powered state or not from the power supply terminal, in order to carry out the ground of the power supply terminal when it is in the rest.

Toutefois, les dispositifs proposés jusqu'ici rendent complexe l'assemblage des composants du contacteur et présentent des problèmes de fiabilité.However, the devices proposed so far make complex assembly of contactor components and have reliability issues.

L'invention a donc pour but de proposer un dispositif pour la mise à la masse de la borne d'alimentation qui est facile à assembler et qui présente de parfaites garanties de fonctionnement.The invention therefore aims to provide a device for the earthing of the power terminal which is easy to assemble and which offers perfect guarantees of operation.

A cet effet, l'invention propose un démarreur du type vu précédemment, caractérisé en ce que le contact mobile et la borne d'alimentation sont reliés électriquement par lesdits moyens de rappel élastique réalisés en matériaux conducteur.To this end, the invention provides a starter of the type seen previously, characterized in that the movable contact and the power supply terminal are electrically connected by said elastic return means made of conductive materials.

Selon d'autres caractéristiques de l'invention :

  • les moyens de rappel élastique comportent un ressort hélicoïdal de compression en matériau conducteur en appui par une première extrémité axiale contre le contact mobile et par sa seconde extrémité contre une patte métallique de raccordement électrique reliée à la borne d'alimentation ;
  • le contacteur comporte un carter sensiblement cylindrique, fermé à une extrémité axiale par le bloc-support des bornes qui comporte une jupe annulaire de centrage et de fixation sur le carter et un fond transversal, chacune des bornes comporte une tête de contact agencée contre le fond transversal et un plot de raccordement qui débouche axialement dans la face externe du fond transversal, le ressort de rappel est agencé axialement dans le contacteur et il est guidé à sa seconde extrémité axiale dans un logement sensiblement cylindrique aménagé sensiblement au centre du fond transversal ;
  • la patte métallique comporte une première extrémité qui est reçue dans le logement et contre laquelle la seconde extrémité du ressort de rappel est en appui axial, et une seconde extrémité qui est reliée, à la première par une bande de liaison coudée, qui est percée d'un trou pour le passage du plot de raccordement de la borne d'alimentation, la seconde extrémité est serrée entre la tête de contact de la borne d'alimentation et la face interne du fond transversal du bloc.
According to other characteristics of the invention:
  • the elastic return means comprise a helical compression spring of conductive material bearing by a first axial end against the movable contact and by its second end against a metal tab for electrical connection connected to the supply terminal;
  • the contactor comprises a substantially cylindrical casing, closed at an axial end by the terminal support block which comprises an annular skirt for centering and fixing on the casing and a transverse bottom, each of the terminals comprises a contact head arranged against the bottom transverse and a connection pad which opens axially into the external face of the transverse bottom, the return spring is arranged axially in the contactor and it is guided at its second axial end in a substantially cylindrical housing arranged substantially at the center of the transverse bottom;
  • the metal tab has a first end which is received in the housing and against which the second end of the return spring is in axial support, and a second end which is connected, to the first by a bent connecting strip, which is pierced with 'A hole for the passage of the connection stud of the supply terminal, the second end is clamped between the contact head of the supply terminal and the internal face of the transverse bottom of the block.

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

  • La figure 1 est une représentation en coupe axiale partielle d'un contacteur de démarreur selon l'état de la technique ;
  • la figure 2 est une vue similaire à celle de la figure 1 représentant un contacteur conforme aux enseignements de l'invention illustré en position de repos ;
  • la figure 3 est une vue similaire à celle de la figure 2 représentant le contacteur selon l'invention en position active ;
  • la figure 4 est une représentation en perspective d'une patte métallique de raccordement selon l'invention.
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 a partial axial sectional representation of a starter switch according to the prior art;
  • Figure 2 is a view similar to that of Figure 1 showing a contactor according to the teachings of the invention illustrated in the rest position;
  • Figure 3 is a view similar to that of Figure 2 showing the contactor according to the invention in the active position;
  • Figure 4 is a perspective representation of a metal connecting tab according to the invention.

Les figures 1 à 3 représentent un contacteur 10 de démarreur comportant un carter cylindrique 12 d'axe X-X, dans lequel est monté un bobinage annulaire 14 qui, lorsqu'il est parcouru par un courant d'excitation, provoque dans le contacteur un flux magnétique axial, notamment grâce à une masse polaire 16, et le bobinage est alors susceptible de provoquer le déplacement axial d'un noyau mobile 18.Figures 1 to 3 show a contactor 10 of starter comprising a cylindrical casing 12 of axis X-X, in which is mounted an annular winding 14 which, when traversed by an excitation current, causes in the contactor an axial magnetic flux, in particular thanks to a polar mass 16, and the winding is then likely to cause the axial displacement of a movable core 18.

Le noyau mobile 18 est donc susceptible de coulisser entre une position de repos dans laquelle il dépasse axialement au travers d'une première extrémité axiale 20 du contacteur 10, et une position active dans laquelle, sous l'effet du champ magnétique induit par le bobinage 14, il est presque entièrement reçu à l'intérieur du bobinage 14.The movable core 18 is therefore capable of sliding between a rest position in which it exceeds axially through a first axial end 20 of the contactor 10, and an active position in which, under the effect of the magnetic field induced by the coil 14, it is almost fully received inside the coil 14.

Un ressort hélicoïdal de compression 22 rappelle élastiquement le noyau mobile 18 vers sa position de repos.A helical compression spring 22 recalls elastically the movable core 18 towards its rest position.

Le carter 12 du contacteur 10 est fermé à sa seconde extrémité axiale opposée 24 par un bloc 26 de support de bornes 28, 30 prévues pour l'alimentation électrique du moteur de démarreur (non représenté).The casing 12 of the contactor 10 is closed at its second opposite axial end 24 by a block 26 of support terminals 28, 30 provided for the motor power supply starter (not shown).

Le bloc support en matériau isolant 26 comporte une jupe annulaire cylindrique 32 qui permet son centrage et sa fixation à l'extrémité 24 du carter 12 du contacteur 10, et un fond transversal 34 qui ferme axialement le contacteur 10.The insulating material support block 26 has a cylindrical annular skirt 32 which allows its centering and its attachment to the end 24 of the casing 12 of the contactor 10, and a transverse bottom 34 which axially closes the contactor 10.

Les bornes 28, 30 sont sensiblement diamétralement opposées sur le fond 34, de part et d'autre de l'axe X-X du contacteur 10.Terminals 28, 30 are substantially diametrically opposite on the bottom 34, on either side of the X-X axis of the contactor 10.

Les bornes 28, 30 comportent chacune une tête de contact 36, 38 agencées à l'intérieur du contacteur 10, contre le fond transversal 34 du bloc support 26 et un plot de raccordement 40, 42, en partie fileté et qui s'étend axialement au travers du fond transversal 34 de manière à déboucher à l'extérieur du contacteur 10.Terminals 28, 30 each have a contact 36, 38 arranged inside the contactor 10, against the transverse bottom 34 of the support block 26 and a stud connection 40, 42, partly threaded and which extends axially through the transverse bottom 34 so as to lead to outside of contactor 10.

Une première borne 28 est prévue pour être reliée à la borne positive (non représentée) d'une batterie d'accumulateurs du véhicule et la seconde borne 30 est prévue pour recevoir un câble d'alimentation (non représenté) du moteur du démarreur.A first terminal 28 is provided to be connected to the positive terminal (not shown) of a battery vehicle batteries and the second terminal 30 is provided to receive a power cable (not shown) from the starter motor.

Le bloc support 26 est réalisé en matériau isolant et il est fixé, par exemple par sertissage, à l'extrémité 24 du contacteur 10.The support block 26 is made of insulating material and it is fixed, for example by crimping, to the end 24 of the contactor 10.

Un contact mobile 44, constitué d'une plaque sensiblement rectangulaire, est susceptible d'être déplacé axialement à l'intérieur de l'espace 45 délimité par la paroi annulaire 32 et le fond 34 du bloc de support 26, entre une position de repos dans laquelle il est en appui contre la masse polaire 16 du contacteur 10 et une position active dans laquelle le contact mobile 44 est en appui simultanément contre les têtes 36, 38 des bornes 28, 30 de manière à établir entre ces deux bornes 28, 30 un raccordement électrique qui permet d'alimenter le moteur du démarreur en courant électrique provenant de la batterie d'accumulateur du véhicule.A movable contact 44, consisting of a plate substantially rectangular, can be moved axially inside the space 45 delimited by the wall annular 32 and the bottom 34 of the support block 26, between a rest position in which it bears against the mass pole 16 of contactor 10 and an active position in which the movable contact 44 is simultaneously supported against the heads 36, 38 of the terminals 28, 30 so as to establish between these two terminals 28, 30 an electrical connection which provides power to the starter motor from the vehicle's storage battery.

Le déplacement axial du contact mobile 44 est commandé par une tige 46, qui est guidée axialement dans la masse polaire 16, et dont les déplacements sont commandés par le noyau mobile 18.The axial displacement of the movable contact 44 is controlled by a rod 46, which is guided axially in the polar mass 16, and whose movements are controlled by the movable core 18.

De manière connue, le contact mobile 44 est monté coulissant sur la tige 46.In known manner, the movable contact 44 is mounted sliding on the rod 46.

La tige 46 commande le contact mobile 44 vers sa position active par l'intermédiaire d'un ressort de contact 48 qui est en appui d'un côté contre un épaulement 50 de la tige 46 et de l'autre côté contre la face axiale 52 du contact mobile 44 qui est en appui contre la masse polaire 16 lorsque le contact 44 est en position de repos.The rod 46 controls the movable contact 44 towards its active position via a contact spring 48 which is supported on one side against a shoulder 50 of the rod 46 and on the other side against the axial face 52 of the movable contact 44 which is in abutment against the polar mass 16 when the contact 44 is in the rest position.

Cette disposition constructive, combinée au montage avec jeu radial de contact mobile 44 sur la tige 46, permet un léger rotulage du contact mobile 44 et ainsi assure un contact électrique parfait contre les têtes 36, 38 des bornes 28, 30, même dans le cas où celles-ci présenteraient une usure inégale.This constructive arrangement, combined with mounting with radial clearance of movable contact 44 on the rod 46, allows a slight swiveling of the movable contact 44 and thus ensures contact perfect electric against heads 36, 38 of terminals 28, 30, even if they show wear uneven.

Un ressort de rappel 54 permet de ramener la tige 46 et le contact mobile 44 en position de repos.A return spring 54 allows the rod 46 to be brought back and the movable contact 44 in the rest position.

Le ressort de rappel 54 est en appui au fond d'un logement cylindrique 55 agencé au centre du fond transversal 34 du bloc 26 et sollicite axialement une rondelle métallique 56 qui est en appui contre un second épaulement 58 de la tige 46 et contre la face axiale 60 du contact mobile qui coopère par ailleurs avec les bornes 28, 30.The return spring 54 is supported at the bottom of a cylindrical housing 55 arranged in the center of the transverse bottom 34 of block 26 and axially urges a metal washer 56 which is in abutment against a second shoulder 58 of the rod 46 and against the axial face 60 of the movable contact which cooperates by elsewhere with terminals 28, 30.

La rondelle métallique 56 est fixée axialement sur la tige 46 contre l'épaulement 58 par une rondelle à griffes 62 qui est emmanchée à force sur l'extrémité axiale 64 de la tige de commande 46.The metal washer 56 is axially fixed on the rod 46 against the shoulder 58 by a claw washer 62 which is force-fitted onto the axial end 64 of the rod command 46.

La figure 1 représente plus particulièrement un mode de réalisation connu d'un contacteur qui permet de relier la borne d'alimentation 38 à la masse électrique du véhicule par l'intermédiaire du contact mobile 44.FIG. 1 more particularly represents a mode of known embodiment of a contactor which makes it possible to connect the terminal supply 38 to the vehicle's electrical ground by via mobile contact 44.

A cet effet, il est prévu une pièce en tôle découpée et pliée 66 qui comporte une extrémité 68 interposée entre la tête de contact 38 de la borne 30 et le fond transversal 34, qui comporte une bande de liaison 70 qui s'étend axialement le long de la face interne 72 de la paroi annulaire 32 du bloc de support 26, et qui comporte une seconde extrémité 74 recourbée radialement vers l'intérieur.For this purpose, a piece of cut sheet metal is provided and folded 66 which has one end 68 interposed between the head contact 38 of terminal 30 and the transverse bottom 34, which comprises a connecting strip 70 which extends axially the along the internal face 72 of the annular wall 32 of the block of support 26, and which has a second end 74 curved radially inward.

La seconde extrémité radiale recourbée 74 est destinée à coopérer avec la face 52 du contact mobile 44 lorsqu'il est par ailleurs en contact avec la masse polaire 16.The second curved radial end 74 is intended to cooperate with the face 52 of the movable contact 44 when it is also in contact with the polar mass 16.

La patte 66 étant en permanence au contact de la borne d'alimentation 30, elle se trouve à un potentiel électrique élevé lorsque le contact mobile 44 établit le contact entre les deux bornes 28, 30. Leg 66 being permanently in contact with the terminal power supply 30, it is at a high electrical potential when the movable contact 44 establishes contact between the two terminals 28, 30.

Il faut donc éviter tout contact de l'extrémité recourbée 74 de la patte 66 avec la masse polaire 16 qui est reliée à la masse électrique du véhicule.Avoid contact with the curved end 74 of the leg 66 with the polar mass 16 which is connected to the vehicle electrical ground.

A cet effet, on a aménagé, entre l'extrémité recourbée 74 et la masse polaire 16, une plaque d'isolation 76 en matériau isolant.For this purpose, we have arranged, between the curved end 74 and the pole ground 16, an insulating plate 76 in insulating material.

Cette plaque 76 est percée en son centre d'un trou 78 pour le passage de la tige de commande 46 et elle comporte également un perçage 80 au travers duquel s'étend axialement une excroissance 82 de la masse polaire 16 destinée à venir en contact avec la face 52 du contact mobile 44.This plate 76 is drilled in the center of a hole 78 for the passage of the control rod 46 and it comprises also a bore 80 through which extends axially an outgrowth 82 of the polar mass 16 intended to come in contact with the face 52 of the movable contact 44.

L'excroissance 82 se situe transversalement dans le même plan que l'extrémité recourbé 74 de la patte 66 de manière à permettre au contact mobile d'être, en position de repos, simultanément en appui contre l'excroissance 82 de la masse polaire 16 et contre la partie recourbée 74 de la patte 66 de manière à réaliser le raccordement électrique entre la borne d'alimentation 30 et la masse électrique du véhicule.The outgrowth 82 is located transversely in the same plane as the curved end 74 of the leg 66 of so as to allow the movable contact to be in the position of rest, simultaneously pressing against the outgrowth 82 of the polar mass 16 and against the curved part 74 of the tab 66 so as to make the electrical connection between the supply terminal 30 and the vehicle's electrical ground.

Cet agencement présente de nombreux inconvénients.This arrangement has many drawbacks.

En effet, il est nécessaire d'utiliser une plaque d'isolation 76 sous peine de voire apparaítre des arcs électriques entre l'extrémité 74 de la patte 66 et la masse polaire 16.Indeed, it is necessary to use a plate of insulation 76 under penalty of even appearing arches electrical between the end 74 of the tab 66 and the earth polar 16.

Par ailleurs, l'extrémité recourbée 74 qui s'étend radialement vers l'intérieur empêche un montage simple par empilement axial des différents éléments.Furthermore, the curved end 74 which extends radially inwards prevents simple mounting by axial stacking of the different elements.

De plus, cet agencement nécessite la réalisation d'une excroissance 82 dans la masse polaire 16, ce qui implique une indexation lors de l'assemblage pour la positionner en vis-à-vis du perçage 80 de la plaque isolante 76 et ce qui ne permet qu'une très faible surface de contact entre le contact mobile 44 et la masse polaire 16. In addition, this arrangement requires the realization of a outgrowth 82 in the polar mass 16, which implies a indexing during assembly to position it opposite of the hole 80 of the insulating plate 76 and which does not allow that a very small contact surface between the movable contact 44 and the polar mass 16.

Conformément aux enseignements de l'invention, le contacteur de démarreur représenté sur les figures 2 et 3 permet de réaliser une mise à la masse électrique de la borne d'alimentation 30 du contacteur par l'intermédiaire du ressort de rappel 54.In accordance with the teachings of the invention, the starter switch shown in Figures 2 and 3 allows for electrical grounding of the terminal supply 30 of the contactor via the spring reminder 54.

A cet effet, une patte métallique 84 comportant une extrémité 86 interposée entre la tête 38 de la bande 30 et le fond transversal 34, une bande de liaison 88 et une extrémité 90 qui s'étend au fond du logement 55 cylindrique de guidage du ressort de rappel 54 agencé dans le fond transversal 34.To this end, a metal tab 84 comprising a end 86 interposed between the head 38 of the strip 30 and the transverse bottom 34, a connecting strip 88 and one end 90 which extends to the bottom of the cylindrical guide housing 55 of the return spring 54 arranged in the transverse bottom 34.

En position de repos du contact mobile 44, comme on peut le voir sur la figure 2, la liaison électrique est ainsi réalisée entre la borne d'alimentation 30 et la masse polaire 16 qui est à la masse électrique du véhicule par l'intermédiaire de la patte 84, du ressort de rappel 54, des rondelles métalliques 62, 56 et par le contact mobile 44.In the rest position of the movable contact 44, as can see it in figure 2, the electrical connection is like this made between the supply terminal 30 and the pole ground 16 which is to the electrical ground of the vehicle via tab 84, return spring 54, metal washers 62, 56 and by the mobile contact 44.

Lorsque le démarreur est sollicité par le conducteur, le contact mobile 44 est sollicité par la tige de commande 46 vers sa position active qui est représentée sur la figure 3 et dans laquelle le contact mobile 44 est en appui par sa face axiale 60 contre les bornes 28, 30.When the starter is requested by the driver, the movable contact 44 is biased by the control rod 46 towards its active position which is represented in FIG. 3 and in which the movable contact 44 is supported by its axial face 60 against terminals 28, 30.

Le contact mobile 44 étant sollicité contre les têtes de contact 36, 38 par le ressort de contact 48 lié à la tige 46, la tige 46 possède une course de déplacement axiale supérieure à celle du contact mobile 44.The movable contact 44 being urged against the heads of contact 36, 38 by the contact spring 48 linked to the rod 46, the rod 46 has a greater axial displacement stroke to that of the mobile contact 44.

Ainsi, lorsque le contact mobile arrive en contact contre les bornes 28, 30, la tige 46 poursuit son déplacement de gauche à droite en considérant la figure de manière à comprimer le ressort de contact 48, ce qui provoque la rupture du contact entre la rondelle métallique 46 et la contact mobile 44. So when the mobile contact comes into contact against the terminals 28, 30, the rod 46 continues to move left to right considering the figure so that compress contact spring 48, causing rupture of the contact between the metal washer 46 and the movable contact 44.

Ainsi, dès le contact du contact mobile 44 avec les bornes 28, 30, la liaison électrique entre le contact mobile et la borne d'alimentation 30 est interrompue ce qui évite le passage d'un courant trop important par l'intermédiaire de la patte 84, du ressort de rappel 54 et des rondelles métalliques 56 et de fixation 62 qui n'ont pas vocation à transmettre des courants importants.Thus, from the contact of the mobile contact 44 with the terminals 28, 30, the electrical connection between the movable contact and the supply terminal 30 is interrupted which avoids the passage of too great a current through the tab 84, return spring 54 and metal washers 56 and fixation 62 which are not intended to transmit important currents.

Claims (4)

  1. Motor vehicle starter, of the type having a contactor (10) provided with a movable contact (44) able to be moved in translation by electromagnetic means between an idle position in which the contact (44) is in abutment against a fixed conductive element (16) connected to the electrical earth of the vehicle and towards which it is forced by elastic return means (54), and an active position, in which the movable contact establishes the electrical connection between an input terminal (28) for the current, connected to the positive terminal of the vehicle battery, and a supply terminal (30) of the starter motor, of the type in which means are provided which, when the movable contact (44) is in the idle position, make it possible to establish electrical contact between the supply terminal (30) and the electrical earth of the vehicle by means of the movable contact (44), and of the type in which the elastic return means (54) are arranged between the movable contact (44) and a support block (26) for the terminals (28, 30) produced from insulating material, characterised in that the movable contact (44) and the supply terminal (30) are electrically connected by the said elastic return means (54) produced from conductive material.
  2. Starter according to Claim 1, characterised in that the elastic return means include a helical compression spring (54) made from conductive material in abutment through a first axial end against the movable contact (44) and through its second end against a metallic electrical connection lug (84) connected to the supply terminal (30).
  3. Starter according to Claim 2, characterised in that the contactor has a substantially cylindrical casing (12), closed at one axial end (24) by the support block (26) for the terminals (28, 30), which has an annular skirt (32) for centring and fixing on the casing (12) and a transverse bottom (34), in that each of the terminals (28, 30) has a contact head (36, 38) arranged against the transverse bottom (34) and a connecting stud (40, 42) which emerges axially in the external face of the transverse bottom (34), and in that the return spring (54) is arranged axially in the contactor (10) and in that it is guided at its second axial end in a substantially cylindrical housing (55) provided substantially at the centre of the transverse bottom (34).
  4. Starter according to Claim 3, characterised in that the metallic lug (84) has a first end (90) which is received in the housing (55) and against which the second end of the return spring (54) is in axial abutment, and a second end (86) which is connected to the first by means of an angled connecting strip (88), which has in it a hole for the connecting stud (42) of the supply terminal (30) to pass, and in that the second end (86) is clamped against the contact head (38) of the supply terminal (30) and the internal face of the transverse bottom (34) of the block (26).
EP96401250A 1995-06-12 1996-06-11 Starter with a contactor having perfectionate means for earthing in rest position, and contactor having such means Expired - Lifetime EP0749144B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9507046 1995-06-12
FR9507046A FR2735186B1 (en) 1995-06-12 1995-06-12 STARTER PROVIDED WITH A CONTACTOR COMPRISING IMPROVED ELECTRICAL GROUNDING MEANS IN THE REST POSITION AND CONTACTOR PROVIDED WITH SUCH MEANS.

Publications (2)

Publication Number Publication Date
EP0749144A1 EP0749144A1 (en) 1996-12-18
EP0749144B1 true EP0749144B1 (en) 2001-11-28

Family

ID=9479960

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96401250A Expired - Lifetime EP0749144B1 (en) 1995-06-12 1996-06-11 Starter with a contactor having perfectionate means for earthing in rest position, and contactor having such means

Country Status (4)

Country Link
US (1) US5757256A (en)
EP (1) EP0749144B1 (en)
DE (1) DE69617321T2 (en)
FR (1) FR2735186B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2908160A1 (en) 2006-11-06 2008-05-09 Valeo Equip Electr Moteur Starting device e.g. six pole type electromagnet, for motor vehicle, has electric joining element modifying electric state of windings of rotor, when starter drive assembly is in position, to generate electromagnetic braking of rotor

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2755535B1 (en) * 1996-11-07 1998-12-04 Valeo Equip Electr Moteur STARTER CONTACTOR COMPRISING AN ELECTRONIC CONTROL CIRCUIT INTEGRATED WITH THE CONTACTOR, AND VEHICLE STARTER COMPRISING SUCH A CONTACTOR
JP4031889B2 (en) 1999-07-29 2008-01-09 株式会社日立製作所 Magnetic switch for starter
JP2006286258A (en) * 2005-03-31 2006-10-19 Denso Corp Electromagnetic switch for starter
JP2007134122A (en) * 2005-11-09 2007-05-31 Denso Corp Electromagnetic switch
WO2008056075A2 (en) * 2006-11-06 2008-05-15 Valeo Equipements Electriques Moteur Starting device for a combustion engine mainly for an automobile vehicle
FR2918126B1 (en) * 2007-06-28 2012-10-19 Valeo Equip Electr Moteur STARTING DEVICE FOR A COMBUSTION ENGINE, IN PARTICULAR A MOTOR VEHICLE.
FR2926334B1 (en) * 2008-01-14 2012-07-13 Valeo Equip Electr Moteur STARTING DEVICE FOR A COMBUSTION ENGINE, IN PARTICULAR A MOTOR VEHICLE
DE102008043186A1 (en) * 2008-10-27 2010-04-29 Robert Bosch Gmbh Electromagnetic switch for a starting device and method for switching the electromagnetic switch
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
CN111344829B (en) * 2017-11-21 2022-11-22 三菱电机株式会社 Electromagnetic switch device for starter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3284742A (en) * 1964-08-17 1966-11-08 Square D Co Electromagnetic contactor
DE2838997A1 (en) * 1978-09-07 1980-03-20 Bbc Brown Boveri & Cie METHOD FOR PRODUCING A SEALED HOUSING FOR A DISC-SHAPED SEMICONDUCTOR BODY HAVING AT LEAST ONE PN TRANSITION
FR2562322B1 (en) * 1984-03-30 1986-08-08 Ecans ELECTROMAGNETIC BATTERY SWITCH WITH ELECTRONIC CONTROL
IT1195123B (en) * 1986-08-07 1988-10-12 Magneti Marelli Spa ELECTROMAGNETIC DEVICE TO CONTROL THE POWER SUPPLY TO THE ELECTRIC STARTER OF AN INTERNAL COMBUSTION ENGINE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2908160A1 (en) 2006-11-06 2008-05-09 Valeo Equip Electr Moteur Starting device e.g. six pole type electromagnet, for motor vehicle, has electric joining element modifying electric state of windings of rotor, when starter drive assembly is in position, to generate electromagnetic braking of rotor

Also Published As

Publication number Publication date
FR2735186A1 (en) 1996-12-13
EP0749144A1 (en) 1996-12-18
FR2735186B1 (en) 1997-07-18
DE69617321T2 (en) 2002-05-16
DE69617321D1 (en) 2002-01-10
US5757256A (en) 1998-05-26

Similar Documents

Publication Publication Date Title
EP0828275B1 (en) Starter contactor having an electronic circuit integrated to the contactor, and vehicle starter having such a contactor
EP0749144B1 (en) Starter with a contactor having perfectionate means for earthing in rest position, and contactor having such means
FR2915638A3 (en) BRUSH HOLDER FOR A COLLECTOR ELECTRIC MACHINE, ESPECIALLY FOR A CONTINUOUS CURRENT MOTOR
FR2904471A1 (en) Starter for engine has terminal bolt which is secured in contact cover to extend in axial direction of motor with end portion protruding from end wall of contact cover
EP0859394B1 (en) Starter contactor for motor vehicule having perfectionate protection means of electronic circuit
EP0768695B1 (en) Contactor for starter with improved fixed contacts, and starter for motor vehicle equipped with such a contactor
FR2744962A1 (en) CIGARETTE LIGHTER WITH PROTECTIVE DEVICE, PARTICULARLY FOR MOTOR VEHICLE
EP1925011B1 (en) Heat engine starter switch comprising improved winding electrical connection means
EP1324469B1 (en) Electric commutator motor featuring an electromagnetic interference reduction device
FR2867602A1 (en) Commutator for use in e.g. window regulator, has set of metal segments arranged on circumference of support ring, and set of capacitors arranged between support ring and metal segments
EP0891627B1 (en) Modular electric switch
FR2794281A1 (en) Circuit breaker/electronic card connection having flexible U-shaped support/connection end and card position slotting card contact elements connecting.
EP1668660B1 (en) Electric starter for a motor vehicle, comprising a hybrid contactor with a solid-state relay built into the cap
FR2797091A1 (en) CONTACTOR FOR A MOTOR VEHICLE STARTER COMPRISING ELECTRICAL GROUNDING MEANS IN THE REST POSITION AND STARTER PROVIDED WITH SUCH A CONTACTOR
EP0859393B1 (en) Starter contactor for motor vehicule with perfectionated means for centring a stationary core
EP0708500A1 (en) Male electrical connector
EP0778601A1 (en) Starter contactor provided with a stop for movable contact made by deformation and the vehicle starter equipped with such a contactor
EP0778600A1 (en) Starter contact with integrated return spring and vehicle starter equipped with such a contactor
FR3140489A1 (en) Surge protection device and method of manufacturing such a device
EP1230661B1 (en) Coil frame ignition switch for motor vehicle and starter provided with same
EP2248141B1 (en) Dual-contact contactor and arc blowout chimney
FR2806216A1 (en) Rapid connection device of a cable to a automotive vehicle battery terminal, has gripping zone formed by knurling to enable proper grip on the battery terminal
WO2016030605A1 (en) Starter of a motor vehicle, provided with a connector for connection to an auxiliary element
FR2805660A1 (en) Car starter motor contact assembly having contact unit cap cover and upper outer sections with a metallic strip cap non parallel to the cap
FR2814589A1 (en) CARCASS CONTACTOR FOR A MOTOR VEHICLE STARTER AND STARTER PROVIDED WITH SUCH A CONTACTOR

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB IT

17P Request for examination filed

Effective date: 19970617

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20010125

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REF Corresponds to:

Ref document number: 69617321

Country of ref document: DE

Date of ref document: 20020110

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

Effective date: 20020128

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030603

Year of fee payment: 8

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

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040611

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040611

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050611

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

Ref country code: DE

Payment date: 20080613

Year of fee payment: 13

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20100101