EP1845546A2 - Bistable manoeuvring device of a mobile shaft and battery cutout comprising such a device - Google Patents

Bistable manoeuvring device of a mobile shaft and battery cutout comprising such a device Download PDF

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Publication number
EP1845546A2
EP1845546A2 EP07290423A EP07290423A EP1845546A2 EP 1845546 A2 EP1845546 A2 EP 1845546A2 EP 07290423 A EP07290423 A EP 07290423A EP 07290423 A EP07290423 A EP 07290423A EP 1845546 A2 EP1845546 A2 EP 1845546A2
Authority
EP
European Patent Office
Prior art keywords
shaft
core
bistable
bistable actuator
stop
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.)
Withdrawn
Application number
EP07290423A
Other languages
German (de)
French (fr)
Other versions
EP1845546A3 (en
Inventor
Per- Anders Forsberg
Jean-Luc Herbin
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.)
Diamecans SAS
Original Assignee
Diamecans 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 Diamecans SAS filed Critical Diamecans SAS
Publication of EP1845546A2 publication Critical patent/EP1845546A2/en
Publication of EP1845546A3 publication Critical patent/EP1845546A3/en
Withdrawn legal-status Critical Current

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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
    • 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
    • H01H51/08—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet
    • H01H51/082—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism

Definitions

  • the present invention generally relates to a bistable maneuvering device, in translation, of a movable shaft between a first and a second stable position.
  • a bistable maneuver device in translation, of a shaft movable between two stable positions, comprising a movable magnetic material core comprising a blind axial housing which extends over a part of the length of said core and in which is engaged a part of the shaft, translational displacement means of said core which comprise a coil surrounding said core intended to be supplied with electric current to generate a magnetic field generating a traction force of said core, and moving means in rotation of the core adapted to cause a rotation of the core of a given angle concomitantly with its translational movement.
  • the invention also relates to an accumulator battery circuit breaker of an electrical installation to embark on a vehicle comprising such an operating device.
  • the latter for the connection in translation between the core and the shaft, the latter comprises a peripheral groove hosting a circlip-type rider and the axial housing of the core is provided at its mouth with an enlargement intended to accommodate a suitable washer. to be supported on one of the rider's faces.
  • a return spring is furthermore placed in compression between a fixed part of the carcass of the bistable actuator and the other of the faces. of the rider.
  • bistable maneuvering device The main disadvantage of such a bistable maneuvering device is that the rider used undergoes significant stresses, in particular when moving the shaft towards its second stable position, which can cause it to break after several thousand cycles of displacement. of the tree.
  • bistable maneuvering device comprises a large number of parts to be assembled, thus conferring a high cost of production and assembly.
  • a portion of the shaft fitted in an axial housing of the core has a curved free end abuts against the spherical bottom of this axial housing.
  • a part of the shaft engaged in an axial housing of the core whose section is much greater than that of the shaft has a flattened free end in abutment against the flat bottom of this axial housing, the edge of this flattened end forming a ring protruding from the cylindrical face of the shaft, which rubs on the inner wall of said axial housing of large section so as to axially guide the shaft in said axial housing.
  • the present invention proposes a new, more robust bistable maneuvering device with a low inertia and a reduced number of parts, in particular moving parts.
  • a bistable operating device as defined in the introduction, in which said blind axial housing comprises a hollow conical bearing surface and the shaft comprises a free end having a conical surface in protrusion which engages in said conical bearing surface recessed to bear there axially.
  • the core when the core is translated under the effect of the magnetic traction force, it pushes the shaft while resting on its free end, this support constituting a robust connection between the core and the shaft .
  • the support provided between the core and the end of the shaft makes it possible to remove a jumper, which reduces the number of parts to be assembled.
  • the complementary support of the conical surfaces recessed and projecting from the core and the shaft avoids a wedging between the core and the shaft when the core rotates about the fixed shaft in rotation.
  • the engagement of an end portion of the shaft in the core makes it possible to correctly guide the shaft in its translation. Since the blind axial housing extends only over part of the length of the core, it is possible to achieve a good compromise between the magnetic mass of the core on which depends the intensity of the magnetic field and the guide length of the shaft of which depends the quality of the guide in translation of the tree.
  • said conical surface projecting from said free end of the shaft is a truncated conical surface.
  • the bistable actuating device comprises means for returning the shaft in one of its stable positions constituted by a spring placed in compression between a fixed part of the bistable actuating device and a stop of the shaft .
  • said stop comes from formation with the shaft.
  • Such an abutment has a great robustness, thus compensating for the problems of rupture of the connection between the shaft and the return spring.
  • said stop may be formed by a peripheral ring or by a shoulder of the shaft.
  • said stop is reported on the shaft.
  • said stop may be formed by a pin engaged in a transverse opening through the shaft, or by a jumper or a circlip engaged in a peripheral groove of the shaft.
  • the jumper is only a connecting piece between the shaft and the return spring. This connecting piece is not subjected to strong constraints as is the connection between the core and the shaft.
  • the invention proposes a battery-storage circuit breaker of an on-vehicle electrical installation, which comprises a bistable operating device as mentioned above.
  • FIG 1 there is shown a battery circuit breaker 1 of an installation to embark on a vehicle.
  • This circuit breaker 1 comprises a housing 1A in which are disposed two fixed contacts 3 and a movable contact 2, in the form of a bar, intended to come into contact with the fixed contacts 3.
  • Each fixed contact 3 is connected via a metal rod 9 to a terminal 4 for supplying electric current.
  • One of the fixed contacts 3 is thus connected via its terminal 4 to any of the positive and negative terminals of the storage battery, this terminal 4 being identified by a ring 4 'of color.
  • the other of the fixed contacts 3 is connected via its terminal 4 to terminals of electrical consumers to supply them with current, these terminals being of the same polarity as the fixed contact 3 connected to the accumulator battery. .
  • the movable contact 2 is able to be displaced in translation between two positions, namely a first position in which the movable contact 2 bears against the fixed contacts 3 and a second position in which it is placed at a distance from the fixed contacts 3.
  • This movable contact 2 is secured by means of a nut 7 at the end of a shaft 20 movable in translation between a first and a second stable position corresponding to the first and second positions of the movable contact 2 explained above.
  • the shaft 20 is preferably made of non-magnetic material.
  • the casing 1A of the circuit breaker 1 also contains, and this is the main object of the present invention, a bistable actuating device 100 of the shaft 20.
  • This bistable maneuvering device 100 is able to translate the shaft 20 in translation between its first and second stable positions.
  • this bistable actuating device 100 comprises a carcass 10 of cylindrical shape of revolution and internally defining a housing 11 closed at the front by a flange before 90 and at the rear by a flange rear 40.
  • the front flange 90 is a disc traversed at its center by a housing that opens, on the side of its inner face facing the carcass 10, on a cylindrical bearing 91.
  • the front flange 90 has on both sides of the cylindrical bearing 91 holes 92 in which fasteners 82, here screws, engage a coil 80.
  • the shaft 20 passes through the housing of the front flange 90 and the cylindrical bearing 91 to engage in the housing 11 inside the carcass 10.
  • the shaft 20 has a free end 20A located inside the carcass 10, the side of the rear flange 40 which is in contact with a movable core 30.
  • This core 30, here monobloc and made of magnetic material, comprises two barrels 31,32 of different diameters, namely, a first barrel 31 of large diameter and a second barrel 32 of small diameter.
  • the first and second barrels 31, 32 of the core 30 have a cylindrical shape of revolution.
  • a recess 33 is formed at the junction between the first and second barrel 31,32.
  • the rear flange 40 also has the shape of a disk pierced at its center with a bore 43 which opens, on the side of its inner face facing the carcass 10, on a bearing 41 whose inner diameter corresponds to the play near the outer diameter of the second small diameter drum 32 of the core 30.
  • the second small diameter drum 32 of the core 30 is engaged in the bearing 41 carried by the rear flange 40.
  • an annular seal 50 At the end free of the bearing 41, there is provided an annular seal 50.
  • the front and rear flanges 90, 40 are fixed to the carcass 10, for example by crimping, and therefore constitute fixed parts of the bistable actuator 100.
  • said free end end 20A of the shaft 20 constitutes a front face which bears axially on a bearing surface 30B of the core 30.
  • the free end 20A of the shaft 20 is not connected to the bearing surface 30B of the core 30, but that it can a priori move compared to the core 30.
  • the core 30 comprises a blind axial housing 30A which extends over a portion of the length of said core 30 and in which a portion of the shaft that ends with said free end 20A.
  • the blind axial housing 30A has a bottom wall which forms the bearing surface 30B for the free end 20A of the shaft 20.
  • This blind axial housing 30A here extends over a length less than or equal to half of the core length 30.
  • the bottom wall of the blind axial housing 30A has a bearing surface 30B conically recessed complementary to the drill end of the drill which machined this blind axial housing 30A.
  • the free end 20A of the shaft 20 has a conical surface protruding which engages in the bearing surface 30B conical recessed bottom wall of the blind axial housing 30A to bear axially.
  • the conical surface projecting from the free end 20A of the shaft 20 is truncated so that only a portion of the free end 20A bears against the wall bottom of the housing 30A, thus limiting the friction of the shaft 20 against the core 30. This advantageously avoids a wedging between the core 30 and the shaft 20 when the core 30 rotates around the fixed shaft 20 rotation.
  • the apex angles of the conical surfaces of the blind axial housing 30A and the free end 20A of the shaft 20 are identical.
  • the free end of the shaft has a cone shape or non-truncated tip.
  • bistable actuator 100 translational displacement means of the core 30 from the rear flange 40 to the front flange 90.
  • these translational displacement means of the core 30 comprise a coil 80 positioned in the housing 11 inside the carcass 10 so that its body 80A surrounds the core 30.
  • the cylindrical body 80A of revolution of the coil has a bore inside 83 whose diameter is equal, with the clearance, the outer diameter of the first drum 31 of large diameter of the core 30.
  • the body 80A of the coil 80 externally carries a winding son 80B conductors to form the coil 80. It carries in in addition to its two ends 81.84 flanges being positioned against the inner faces of the rear flanges 40 and before 90 closing the carcass 10 (see Figure 1).
  • the coil 80 is intended to be supplied with pulses of electric current to generate a magnetic field generating the tensile force of said core 30 from the rear flange 40 to the front flange 90.
  • the second small diameter barrel 32 of the core 30 comprises positioning means 34 of the shaft 20 in one of its stable positions.
  • these positioning means 34 carried by the second shaft 32 of the core are adapted to position the shaft 20 in the second stable position which is a recessed position of the rear flange 40, shown in Figures 4C and 8B.
  • This second stable position corresponds to the contacting of the movable contact 2 with the fixed contacts 3.
  • These positioning means comprise a track 34 formed in recess on the second small diameter shaft 32 of the core 30 and at least one pin 42 integral with the bearing 41 and intended to cooperate with the track 34.
  • This track 34 associated with the pin 42 also forms means for rotating the core 30 around the shaft 20.
  • the track 34 comprises three identical modules, a module of which is shown in detail in FIG. 9, juxtaposed and each covering an angular sector of 120 °. It is also provided on the bearing 41 three pins 42 arranged at 120 ° from each other which each cooperate with a module of the track 34.
  • each pin 42 is engaged in a hole through the cylindrical wall of the bearing 41 so that it forms a projection inside the bearing 41 to cooperate with the track 34 of the second shaft 32 core 30 engaged in said bearing 41.
  • the core 30 has at its end located on the side of said track 34 a notch 35 and the rear flange 40 secured to the bearing 41 carrying each pin 42 has on its outer face a polarizer 44 (here a hole), said notch 35 and said polarizer 44 being adapted to index the respective positions of the core 30 and the rear flange 40 secured to the bearing 41 in a machine for mounting said core 30 in the bearing 41 carrying each pin 42, to avoid during assembly a crush of each pin 42 against the core 30.
  • a polarizer 44 here a hole
  • each pin 42 is positioned in the bottom of a hollow of a module of the track 34 carried by the core 30 as shown in Figure 1 for example.
  • the track 34 carried by the second shank 32 of the core 30 comprises, per module, a stable position P 5 and two intermediate positions P 3 , P 7 for receiving the corresponding pin 42, arranged on both sides. other of the stable position P 5 , as well as ramps R 1 -R 4 passing from one position to the next position.
  • the annular recess 33 formed at the junction between the first and second barrels 31, 32 of the core 30 is able to bear against the circular edge of the bearing 41, a fixed part of the bistable actuator 100, to position the shaft in the housing. other of its stable positions, here in its first stable position corresponding to the position in which the movable contact 2 is placed at a distance from the fixed contacts 3 so as to be out of electrical contact.
  • the recess 33 of the core 30 is positioned in abutment against the annular seal 50 carried by the end of the bearing 41 and projects outwardly from the rear flange 40.
  • the bistable actuating device 100 comprises return means of the shaft 20 in its first stable position constituted here by a return spring 70.
  • the return spring 70 is threaded onto the shaft 20 and is engaged at least partially in the bearing 91 of the front flange 90.
  • Two sleeves 71, 72 are engaged inside the ends of the return spring 70 and are threaded onto the shaft 20. These sleeves 71, 72 have an outer diameter substantially equal to the inner diameter of the return spring 70 and an inner diameter substantially equal to the diameter of the shaft 20. They each carry a peripheral ring against which rests the corresponding end of the return spring 70.
  • the peripheral ring of one of the sleeves 71 is located halfway up its cylindrical body and is intended to bear, on one side, on one end of the return spring 70, and, on the other, on a fixed part of the bistable actuating device 100, namely the bottom of the bearing 91 of the housing of the front flange 90.
  • the peripheral ring of the other sleeve 72 is located at the end of its cylindrical body and is intended to bear, on the side of this end, on a stop 21 of the shaft 20, and, on the other, on the other end of the return spring 70.
  • the return spring 70 is therefore adapted to be placed in compression between a fixed part of the bistable actuating device 100 and a stop 21 of the shaft 20. It works in compression and is capable of bringing the shaft 20 back from its second stable position towards its first stable position.
  • the stop 21 comes from formation with the shaft 20. More specifically, the stop 21 is formed by a peripheral ring of the shaft against which the return spring 70 is supported by means of one of the sleeves 72.
  • the shaft 20 may have two different diameter parts which are connected at a recess forming a shoulder 22. More specifically, the shaft 20 has, on the side of its free end 20A, a greater diameter than the remaining portion of its length of the shaft 20 so that the shoulder 22 forms a stop against which the return spring 70 is supported by means of one of the sleeves 72.
  • stop 21; 22, that it is formed by a crown or by a shoulder, has a high robustness allowing it to withstand strong constraints over a large number of cycles of use.
  • the abutment 23 is attached to the shaft 20. More specifically, the abutment 23 is formed by a pin longer than the diameter of the shaft 20, which is engaged in a transverse opening through the shaft 20, near its free end 20A. Thus, the pin protrudes from both sides of the shaft 20 so that it forms a rigid support for one of the sleeves 72 and therefore for the return spring 70.
  • the stop 24 may be formed by a circlip (or a jumper to make the assembly of the device easier) engaged in a peripheral groove of the shaft 20.
  • a circlip or a jumper to make the assembly of the device easier
  • One of Sleeves 72 is thus adapted to bear against this circlip.
  • stop 23; 24, whether it is formed by a pin or a circlip, has a robustness large enough to enable it to withstand the stresses exerted by the return spring 70 over a large number of cycles of use.
  • the circlip transmits the forces, not only of the return spring 70 to the shaft 20 but also of the core 30 to the shaft 20, it transmits here only the forces exerted by the return spring 70 on the shaft 20 (the forces exerted by the core 30 on the shaft 20 being transmitted by the bearing surface 30B of the core 30 on the free end 20A of the shaft).
  • the forces and stresses exerted by the core 30 are greater than those exerted by the return spring 70.
  • a simple circlip here makes it possible to withstand the forces and stresses exerted by the return spring 70 over a large number of cycles. use.
  • the shaft 20 is positioned in its first stable position which is a projecting position, i.e. a position in which the second small diameter barrel 32 of the core 30 projects from the rear flange 40 closing the housing 11 inside the carcass 10 of the operating device 100.
  • each pin 42 is positioned in each module of track 34 in position P 1 , P ' 1 at a distance from the bottom of the track 34 preferably greater than or equal to one millimeter.
  • the core 30 When the coil 80 is powered by an electric current pulse, the core 30 is subjected to the action of a traction force generated by the magnetic field generated by the coil 80 in the core, which tends to move the core in translation 30 from the rear to the front, that is from the rear flange 40 to the front flange 90.
  • the race of the core is limited by the abutment of the front face of its first barrel 31 against the end of the bearing 91 carried by the front flange 90 (see Figure 4B).
  • the free end 20A of the shaft 20 being in abutment against the bearing surface 30B of the core 30, this movement of the core 30 causes a translation of the shaft 20 from its first stable position to an intermediate position.
  • the return spring 70 interposed between said core 30 and the front flange 90 is compressed and is housed completely in the bearing 91 carried by the front flange 90 (see Figure 4B).
  • the return spring 5 also compresses.
  • each pin 42 cooperates with the corresponding module of the track 34 to take the intermediate position P 2 bearing against the ramp R 1 of the corresponding module so that each ramp R 1 guides each piece 42 to the intermediate position P 3 ( Figure 8A).
  • the movement of each of the pins 42 in each module of the track 34 causes the rotation of an angle of 30 ° of the core 30 concomitantly with its translational movement.
  • each pin 42 has reached the intermediate position P 3 in the corresponding module of the track 34.
  • each pin 42 navigates in each module of the track 34 so as to take successively the positions P 4 and P 5 .
  • the position P 4 of each pin 42 corresponds to a bearing against a ramp R 2 tending to bring it to a stable position at the bottom of the track, the position P 5 .
  • each pin 42 moves from the position P 3 to the position P 5 which corresponds to a locked position of the pin at the bottom of a recess of each track module, the core always pivots in the same direction by an angle of 30 ° around the shaft 20.
  • This position P 5 of each pin 42 locked at the bottom of a recess of each module of the track 34 corresponds to the second stable position of the shaft 20 which is a recessed position inside.
  • the bistable actuator 100 in which the movable contact 2 is in contact with the fixed contacts 3 ( Figure 8B).
  • each spring, and in particular the return spring 70 compresses again.
  • the core 30 drives the shaft 20 in translation by the bearing of its free end 20A against the bearing surface 30B of the core 30, and each pin 42 carried by the bearing 41 moves in each track module 34 so as to to take the position P 6 bearing against the ramp R 3 to reach the position P 7 which is an intermediate position.
  • the passage from the position P 5 to the position P 7 of each pin 42 causes the rotation of an angle of 30 ° of the core 30 in the same direction as the previous rotations. There is no turning back.
  • each pin 42 moves in each module of the track 34 so as to successively assume the position P 8 in support against the ramp R 4 of the corresponding module of the track 34 to the original position P ' 1 .
  • This passage from the position P 7 to the position P ' 1 causes the rotation of an angle of 30 ° of the core 30 in the same direction until it abuts by its recess 33 annular against the end bearing 41 bearing against the annular seal 50.
  • the displacement of the core 30 causes the displacement of the shaft 20 which causes the moving contact 2 away from the fixed contacts 3.
  • the shaft 20 then resumes its original position which is its first stable position in which it maintains the moving contact 2 away from the fixed contacts 3.

Abstract

The device (100) has a core (30) made of a magnetic material and movably mounted in a frame (10). A displacement unit displaces the core in translation from a rear flange (40) to a front flange (90), and includes a bobbin (80) surrounding the core that is supplied by electric current for generating a magnetic field that produces tensile force of the core. A movable shaft (20) has a free end (20A) that is provided in axial support against the core. The core has a plane end surface that forms a support surface, and a stop is arranged on the shaft.

Description

La présente invention concerne de manière générale un dispositif de manoeuvre bistable, en translation, d'un arbre mobile entre une première et une deuxième positions stables.The present invention generally relates to a bistable maneuvering device, in translation, of a movable shaft between a first and a second stable position.

Elle concerne plus particulièrement un dispositif de manoeuvre bistable, en translation, d'un arbre mobile entre deux positions stables, comprenant un noyau en matériau magnétique, mobile comportant un logement axial borgne qui s'étend sur une partie de la longueur dudit noyau et dans lequel est engagée une partie de l'arbre, des moyens de déplacement en translation dudit noyau qui comprennent une bobine entourant ledit noyau destinée à être alimentée en courant électrique pour générer un champ magnétique engendrant un effort de traction dudit noyau, et des moyens de déplacement en rotation du noyau adaptés à provoquer une rotation du noyau d'un angle donné de façon concomitante à son mouvement de translation.It relates more particularly to a bistable maneuver device, in translation, of a shaft movable between two stable positions, comprising a movable magnetic material core comprising a blind axial housing which extends over a part of the length of said core and in which is engaged a part of the shaft, translational displacement means of said core which comprise a coil surrounding said core intended to be supplied with electric current to generate a magnetic field generating a traction force of said core, and moving means in rotation of the core adapted to cause a rotation of the core of a given angle concomitantly with its translational movement.

L'invention concerne également un coupe-circuit de batterie d'accumulateurs d'une installation électrique à embarquer sur un véhicule comprenant un tel dispositif de manoeuvre.The invention also relates to an accumulator battery circuit breaker of an electrical installation to embark on a vehicle comprising such an operating device.

D'autres applications avantageuses de l'invention sont notamment la réalisation de dispositifs de manoeuvre d'électrovannes ou de dispositifs de commande électromécanique, électro-hydraulique ou en encore électro-pneumatique.Other advantageous applications of the invention include the production of actuators for solenoid valves or electromechanical, electro-hydraulic or electro-pneumatic control devices.

ARRIERE-PLAN TECHNOLOGIQUEBACKGROUND

Actuellement on connaît déjà du document FR 2 865 313 appartenant à la demanderesse un dispositif de manoeuvre bistable tel que précité dans lequel le noyau présente une forme cylindrique de révolution et est percé d'un logement axial non débouchant dans lequel est engagé ledit arbre, de sorte que celui-ci est guidé axialement par le noyau.Currently we already know document FR 2,865,313 belonging to the applicant a bistable operating device as mentioned above wherein the core has a cylindrical shape of revolution and is pierced with a non-through axial housing in which said shaft is engaged, so that it is guided axially by the core.

Dans ce dispositif, pour la liaison en translation entre le noyau et l'arbre, ce dernier comporte une rainure périphérique accueillant un cavalier de type circlip et le logement axial du noyau est pourvu à son embouchure d'un élargissement destiné à accueillir une rondelle apte à prendre appui sur l'une des faces du cavalier.In this device, for the connection in translation between the core and the shaft, the latter comprises a peripheral groove hosting a circlip-type rider and the axial housing of the core is provided at its mouth with an enlargement intended to accommodate a suitable washer. to be supported on one of the rider's faces.

Un ressort de rappel est en outre disposé en compression entre une partie fixe de la carcasse du dispositif de manoeuvre bistable et l'autre des faces du cavalier. Ainsi, lorsque le noyau se translate dans une première direction, il entraîne dans son mouvement l'arbre depuis sa première position stable vers sa deuxième position stable en prenant appui sur le cavalier. Inversement, lorsque le noyau se translate dans la direction opposée, le ressort de rappel ramène l'arbre depuis sa deuxième position stable vers sa première position stable en prenant appui sur le cavalier.A return spring is furthermore placed in compression between a fixed part of the carcass of the bistable actuator and the other of the faces. of the rider. Thus, when the core is translated in a first direction, it drives in its movement the shaft from its first stable position to its second stable position by resting on the rider. Conversely, when the core is translated in the opposite direction, the return spring brings the shaft from its second stable position to its first stable position by resting on the rider.

L'inconvénient principal d'un tel dispositif de manoeuvre bistable est que le cavalier utilisé subit des contraintes importantes, en particulier lors du déplacement de l'arbre vers sa deuxième position stable, ce qui peut provoquer sa rupture après plusieurs milliers de cycles de déplacement de l'arbre.The main disadvantage of such a bistable maneuvering device is that the rider used undergoes significant stresses, in particular when moving the shaft towards its second stable position, which can cause it to break after several thousand cycles of displacement. of the tree.

En outre, un tel dispositif de manoeuvre bistable comporte un nombre important de pièces à assembler, lui conférant ainsi un coût de production et d'assemblage élevé.In addition, such a bistable maneuvering device comprises a large number of parts to be assembled, thus conferring a high cost of production and assembly.

Par ailleurs, on connaît des documents US 4 293 835 et EP 0 099 998 , des dispositifs de manoeuvre en translation d'un arbre, comprenant un noyau libre en translation dans un conduit cylindrique entouré d'une bobine électromagnétique destinée à être alimentée en courant électrique pour générer un champ magnétique engendrant un effort de traction dudit noyau.Moreover, documents are known US 4,293,835 and EP 0 099 998 , devices for maneuvering in translation of a shaft, comprising a free core in translation in a cylindrical conduit surrounded by an electromagnetic coil intended to be supplied with electric current to generate a magnetic field generating a tensile force of said core.

Dans le dispositif selon le document US 4 293 835 , une partie de l'arbre ajustée dans un logement axial du noyau, présente une extrémité libre bombée en butée contre le fond sphérique de ce logement axial.In the device according to the document US 4,293,835 , a portion of the shaft fitted in an axial housing of the core, has a curved free end abuts against the spherical bottom of this axial housing.

Dans le dispositif selon le document EP 0 099 998 , une partie de l'arbre engagée dans un logement axial du noyau dont la section est nettement supérieure à celle de l'arbre, présente une extrémité libre aplatie en butée contre le fond plat de ce logement axial, le bord de cette extrémité aplatie formant une couronne en saillie de la face cylindrique de l'arbre, qui frotte sur la paroi interne dudit logement axial de large section de façon à guider axialement l'arbre dans ledit logement axial.In the device according to the document EP 0 099 998 , a part of the shaft engaged in an axial housing of the core whose section is much greater than that of the shaft, has a flattened free end in abutment against the flat bottom of this axial housing, the edge of this flattened end forming a ring protruding from the cylindrical face of the shaft, which rubs on the inner wall of said axial housing of large section so as to axially guide the shaft in said axial housing.

Dans ces deux dispositifs antérieurs, il n'y a pas de moyens de déplacement en rotation du noyau de sorte que le noyau tout comme l'arbre sont fixes en rotation et mobiles en translation.In these two prior devices, there is no means for rotating the core so that the core just as the shaft are fixed in rotation and movable in translation.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

Par rapport à l'état de la technique, la présente invention propose un nouveau dispositif de manoeuvre bistable plus robuste, avec une faible inertie et un nombre réduit de pièces, notamment de pièces en mouvement.Compared with the state of the art, the present invention proposes a new, more robust bistable maneuvering device with a low inertia and a reduced number of parts, in particular moving parts.

Plus particulièrement, on propose selon l'invention un dispositif de manoeuvre bistable tel que défini dans l'introduction, dans lequel ledit logement axial borgne comporte une surface d'appui conique en creux et l'arbre comporte une extrémité libre présentant une surface conique en saillie qui s'engage dans ladite surface d'appui conique en creux pour y prendre appui axialement.More particularly, according to the invention, there is provided a bistable operating device as defined in the introduction, in which said blind axial housing comprises a hollow conical bearing surface and the shaft comprises a free end having a conical surface in protrusion which engages in said conical bearing surface recessed to bear there axially.

Ainsi, grâce à l'invention, lorsque le noyau se translate sous l'effet de la force de traction magnétique, il pousse l'arbre en prenant appui sur son extrémité libre, cet appui constituant une liaison robuste entre le noyau et l'arbre. L'appui réalisé entre le noyau et l'extrémité de l'arbre permet de supprimer un cavalier, ce qui réduit le nombre de pièces à assembler. En outre, l'appui complémentaire des surfaces coniques en creux et en saillie du noyau et de l'arbre permet d'éviter un coincement entre le noyau et l'arbre lorsque le noyau tourne autour de l'arbre fixe en rotation.Thus, thanks to the invention, when the core is translated under the effect of the magnetic traction force, it pushes the shaft while resting on its free end, this support constituting a robust connection between the core and the shaft . The support provided between the core and the end of the shaft makes it possible to remove a jumper, which reduces the number of parts to be assembled. In addition, the complementary support of the conical surfaces recessed and projecting from the core and the shaft avoids a wedging between the core and the shaft when the core rotates about the fixed shaft in rotation.

Avantageusement, l'engagement d'une partie d'extrémité de l'arbre dans le noyau permet de guider correctement l'arbre dans sa translation. Le logement axial borgne ne s'étendant que sur une partie de la longueur du noyau, il est possible de réaliser un bon compromis entre la masse magnétique du noyau dont dépend l'intensité du champ magnétique et la longueur de guidage de l'arbre dont dépend la qualité du guidage en translation de l'arbre.Advantageously, the engagement of an end portion of the shaft in the core makes it possible to correctly guide the shaft in its translation. Since the blind axial housing extends only over part of the length of the core, it is possible to achieve a good compromise between the magnetic mass of the core on which depends the intensity of the magnetic field and the guide length of the shaft of which depends the quality of the guide in translation of the tree.

En particulier, ladite surface conique en saillie de ladite extrémité libre de l'arbre est une surface conique tronquée.In particular, said conical surface projecting from said free end of the shaft is a truncated conical surface.

Préférentiellement, le dispositif de manoeuvre bistable conforme à l'invention comporte des moyens de rappel de l'arbre dans une de ses positions stables constitués par un ressort disposé en compression entre une partie fixe du dispositif de manoeuvre bistable et une butée de l'arbre.Preferably, the bistable actuating device according to the invention comprises means for returning the shaft in one of its stable positions constituted by a spring placed in compression between a fixed part of the bistable actuating device and a stop of the shaft .

Selon ce mode de réalisation préférentiel, ladite butée vient de formation avec l'arbre.According to this preferred embodiment, said stop comes from formation with the shaft.

Une telle butée présente une grande robustesse, palliant en conséquence les problèmes de rupture de la liaison entre l'arbre et le ressort de rappel.Such an abutment has a great robustness, thus compensating for the problems of rupture of the connection between the shaft and the return spring.

Avantageusement, ladite butée peut être formée par une couronne périphérique ou par un épaulement de l'arbre.Advantageously, said stop may be formed by a peripheral ring or by a shoulder of the shaft.

Selon une variante de réalisation, ladite butée est rapportée sur l'arbre.According to an alternative embodiment, said stop is reported on the shaft.

Dans ce cas, ladite butée peut être formée par une goupille engagée dans une ouverture transversale traversante de l'arbre, ou par un cavalier ou bien un circlip engagé dans une rainure périphérique de l'arbre.In this case, said stop may be formed by a pin engaged in a transverse opening through the shaft, or by a jumper or a circlip engaged in a peripheral groove of the shaft.

Ici, le cavalier ne constitue qu'une pièce de liaison entre l'arbre et le ressort de rappel. Cette pièce de liaison n'est donc pas soumise à de fortes contraintes comme l'est la liaison entre le noyau et l'arbre.Here, the jumper is only a connecting piece between the shaft and the return spring. This connecting piece is not subjected to strong constraints as is the connection between the core and the shaft.

Par ailleurs, l'invention propose un coupe-circuit de batterie d'accumulateurs d'une installation électrique embarquée sur un véhicule, qui comprend un dispositif de manoeuvre bistable tel que précité.Furthermore, the invention proposes a battery-storage circuit breaker of an on-vehicle electrical installation, which comprises a bistable operating device as mentioned above.

DESCRIPTION DETAILLEE D'UN EXEMPLE DE REALISATIONDETAILED DESCRIPTION OF AN EXEMPLARY EMBODIMENT

La description qui va suivre en regard des dessins annexés, donnée à titre d'exemple non limitatif, fera bien comprendre en quoi consiste l'invention et comment elle peut être réalisée.The following description with reference to the accompanying drawings, given by way of non-limiting example, will make it clear what the invention is and how it can be achieved.

Sur les dessins annexés :

  • la figure 1 est une vue schématique en perspective d'un coupe-circuit selon l'invention avec un arraché partiel au niveau de la carcasse et de la bobine d'alimentation d'un dispositif de manoeuvre bistable selon l'invention ;
  • la figure 2 est une vue schématique en perspective éclatée du dispositif de manoeuvre bistable de la figure 1 ;
  • la figure 3 est une vue schématique en coupe longitudinale du dispositif de manoeuvre bistable de la figure 2 assemblé ;
  • les figures 4A à 4C sont des vues schématiques en coupe longitudinale du dispositif de manoeuvre bistable de la figure 2 dans trois positions différentes de l'arbre, à savoir ses première et deuxième positions stables (figures 4A et 4C) ainsi qu'une position intermédiaire (figure 4B) ;
  • Les figures 5 à 7 sont des vues schématiques en coupe longitudinale de variantes de réalisation du dispositif de manoeuvre bistable de la figure 2 positionné dans sa première position stable ;
  • les figures 8A et 8B sont des vues de détail du noyau du dispositif de manoeuvre bistable de la figure 2 positionné dans deux positions de l'arbre, à savoir une position intermédiaire et la deuxième position stable ; et
  • la figure 9 est une vue schématique dans le plan d'un module de la piste de guidage portée par le noyau du dispositif de manoeuvre bistable de la figure 2.
In the accompanying drawings:
  • Figure 1 is a schematic perspective view of a circuit breaker according to the invention with a partial tear at the carcass and the supply coil of a bistable actuator according to the invention;
  • Figure 2 is a schematic exploded perspective view of the bistable actuator of Figure 1;
  • Figure 3 is a schematic longitudinal sectional view of the bistable actuator of Figure 2 assembled;
  • FIGS. 4A to 4C are diagrammatic views in longitudinal section of the bistable actuator of FIG. 2 in three different positions of the shaft, namely its first and second stable positions (FIGS. 4A and 4C) and an intermediate position. (Figure 4B);
  • Figures 5 to 7 are schematic longitudinal sectional views of alternative embodiments of the bistable actuator of Figure 2 positioned in its first stable position;
  • Figures 8A and 8B are detail views of the core of the bistable actuator of Figure 2 positioned in two positions of the shaft, namely an intermediate position and the second stable position; and
  • FIG. 9 is a diagrammatic view in the plane of a module of the guide track carried by the core of the bistable actuator of FIG. 2.

En préliminaire, on notera que d'une figure à l'autre, les éléments identiques ou similaires des différents modes de réalisation de l'invention seront, dans la mesure du possible, référencés par les mêmes signes de référence et ne seront pas décrits à chaque fois.As a preliminary, it will be noted that from one figure to the other, the identical or similar elements of the various embodiments of the invention will, as far as possible, be referenced by the same reference signs and will not be described in FIG. every time.

Sur la figure 1, on a représenté un coupe-circuit 1 de batterie d'accumulateurs d'une installation à embarquer sur un véhicule.In Figure 1, there is shown a battery circuit breaker 1 of an installation to embark on a vehicle.

Ce coupe-circuit 1 comprend un boîtier 1A dans lequel sont disposés deux contacts fixes 3 et un contact mobile 2, sous la forme d'une barrette, destiné à venir au contact des contacts fixes 3.This circuit breaker 1 comprises a housing 1A in which are disposed two fixed contacts 3 and a movable contact 2, in the form of a bar, intended to come into contact with the fixed contacts 3.

Chaque contact fixe 3 est raccordé par le biais d'une tige métallique 9 à une borne 4 d'amenée de courant électrique. Un des contacts fixes 3 est ainsi raccordé par l'intermédiaire de sa borne 4 à une quelconque des bornes positive et négative de la batterie d'accumulateurs, cette borne 4 étant identifiée par une bague 4' de couleur. L'autre des contacts fixes 3 est quant à lui raccordé par l'intermédiaire de sa borne 4 à des bornes de consommateurs électriques pour les alimenter en courant, ces bornes étant de même polarité que le contact fixe 3 raccordé à la batterie d'accumulateur.Each fixed contact 3 is connected via a metal rod 9 to a terminal 4 for supplying electric current. One of the fixed contacts 3 is thus connected via its terminal 4 to any of the positive and negative terminals of the storage battery, this terminal 4 being identified by a ring 4 'of color. The other of the fixed contacts 3 is connected via its terminal 4 to terminals of electrical consumers to supply them with current, these terminals being of the same polarity as the fixed contact 3 connected to the accumulator battery. .

Le contact mobile 2 est apte à être déplacé en translation entre deux positions, à savoir une première position dans laquelle le contact mobile 2 est en appui contre les contacts fixes 3 et une deuxième position dans laquelle il est placé à distance des contacts fixes 3.The movable contact 2 is able to be displaced in translation between two positions, namely a first position in which the movable contact 2 bears against the fixed contacts 3 and a second position in which it is placed at a distance from the fixed contacts 3.

Ce contact mobile 2 est solidarisé par l'intermédiaire d'un écrou 7 à l'extrémité d'un arbre 20 mobile en translation entre une première et une deuxième positions stables correspondant aux première et deuxième positions du contact mobile 2 explicitées ci-dessus.This movable contact 2 is secured by means of a nut 7 at the end of a shaft 20 movable in translation between a first and a second stable position corresponding to the first and second positions of the movable contact 2 explained above.

L'arbre 20 est réalisé de préférence en matériau amagnétique.The shaft 20 is preferably made of non-magnetic material.

Le boîtier 1A du coupe-circuit 1 contient également, et c'est l'objet principal de la présente invention, un dispositif de manoeuvre bistable 100 de l'arbre 20.The casing 1A of the circuit breaker 1 also contains, and this is the main object of the present invention, a bistable actuating device 100 of the shaft 20.

Ce dispositif de manoeuvre bistable 100 est apte à déplacer en translation l'arbre 20 entre ses première et deuxième positions stables.This bistable maneuvering device 100 is able to translate the shaft 20 in translation between its first and second stable positions.

Comme le montrent plus particulièrement les figures 1 à 3, ce dispositif de manoeuvre bistable 100 comporte une carcasse 10 de forme cylindrique de révolution et définissant intérieurement un logement 11 fermé à l'avant par un flasque avant 90 et à l'arrière par un flasque arrière 40.As shown more particularly in FIGS. 1 to 3, this bistable actuating device 100 comprises a carcass 10 of cylindrical shape of revolution and internally defining a housing 11 closed at the front by a flange before 90 and at the rear by a flange rear 40.

Comme le montre plus particulièrement la figure 2, le flasque avant 90 est un disque traversé en son centre par un logement qui débouche, du côté de sa face intérieure tournée vers la carcasse 10, sur un palier cylindrique 91.As shown more particularly in FIG. 2, the front flange 90 is a disc traversed at its center by a housing that opens, on the side of its inner face facing the carcass 10, on a cylindrical bearing 91.

Le flasque avant 90 comporte de part et d'autre du palier cylindrique 91 des trous 92 dans lesquels s'engagent des organes de fixation 82, ici des vis, d'une bobine 80.The front flange 90 has on both sides of the cylindrical bearing 91 holes 92 in which fasteners 82, here screws, engage a coil 80.

L'arbre 20 traverse le logement du flasque avant 90 et le palier cylindrique 91 pour s'engager dans le logement 11 intérieur de la carcasse 10.The shaft 20 passes through the housing of the front flange 90 and the cylindrical bearing 91 to engage in the housing 11 inside the carcass 10.

L'arbre 20 comporte une extrémité libre 20A située à l'intérieur de la carcasse 10, du côté du flasque arrière 40 qui est au contact d'un noyau 30 mobile.The shaft 20 has a free end 20A located inside the carcass 10, the side of the rear flange 40 which is in contact with a movable core 30.

Ce noyau 30, ici monobloc et réalisé en matériau magnétique, comporte deux fûts 31,32 de diamètres différents, à savoir, un premier fût 31 de grand diamètre et un deuxième fût 32 de petit diamètre. Le premier et le deuxième fûts 31,32 du noyau 30 présentent une forme cylindrique de révolution. À la jonction entre le premier et le deuxième fût 31,32, il est formé un décrochement 33.This core 30, here monobloc and made of magnetic material, comprises two barrels 31,32 of different diameters, namely, a first barrel 31 of large diameter and a second barrel 32 of small diameter. The first and second barrels 31, 32 of the core 30 have a cylindrical shape of revolution. At the junction between the first and second barrel 31,32, a recess 33 is formed.

Comme le montrent plus précisément les figures 1 à 3, le flasque arrière 40 présente également la forme d'un disque percé en son centre d'un alésage 43 qui débouche, du côté de sa face intérieure tournée vers la carcasse 10, sur un palier 41 dont le diamètre intérieur correspond au jeu près au diamètre extérieur du deuxième fût 32 de petit diamètre du noyau 30. Le deuxième fût 32 de petit diamètre du noyau 30 est engagé dans le palier 41 porté par le flasque arrière 40. À l'extrémité libre du palier 41, il est prévu un joint annulaire 50.As shown more specifically in Figures 1 to 3, the rear flange 40 also has the shape of a disk pierced at its center with a bore 43 which opens, on the side of its inner face facing the carcass 10, on a bearing 41 whose inner diameter corresponds to the play near the outer diameter of the second small diameter drum 32 of the core 30. The second small diameter drum 32 of the core 30 is engaged in the bearing 41 carried by the rear flange 40. At the end free of the bearing 41, there is provided an annular seal 50.

Les flasques avant et arrière 90, 40 sont fixés à la carcasse 10, par exemple par sertissage, et constituent donc des parties fixes du dispositif de manoeuvre bistable 100.The front and rear flanges 90, 40 are fixed to the carcass 10, for example by crimping, and therefore constitute fixed parts of the bistable actuator 100.

Selon une caractéristique particulièrement avantageuse de l'invention, ladite extrémité libre 20A terminale de l'arbre 20 constitue une face frontale qui prend appui axialement sur une surface d'appui 30B du noyau 30.According to a particularly advantageous characteristic of the invention, said free end end 20A of the shaft 20 constitutes a front face which bears axially on a bearing surface 30B of the core 30.

Quel que soit le mode de réalisation de l'invention, on notera que l'extrémité libre 20A de l'arbre 20 n'est pas liée à la surface d'appui 30B du noyau 30, mais qu'elle peut a priori se mouvoir par rapport au noyau 30.Whatever the embodiment of the invention, it will be noted that the free end 20A of the shaft 20 is not connected to the bearing surface 30B of the core 30, but that it can a priori move compared to the core 30.

Comme le montre en particulier la figure 3 et selon un premier mode de réalisation de l'invention, le noyau 30 comporte un logement axial borgne 30A qui s'étend sur une partie de la longueur dudit noyau 30 et dans lequel est engagée une partie de l'arbre qui se termine par ladite extrémité libre 20A. Le logement axial borgne 30A présente une paroi de fond qui forme la surface d'appui 30B pour l'extrémité libre 20A de l'arbre 20. Ce logement axial borgne 30A s'étend ici sur une longueur inférieure ou égale à la moitié de la longueur du noyau 30.As shown in particular in FIG. 3 and according to a first embodiment of the invention, the core 30 comprises a blind axial housing 30A which extends over a portion of the length of said core 30 and in which a portion of the shaft that ends with said free end 20A. The blind axial housing 30A has a bottom wall which forms the bearing surface 30B for the free end 20A of the shaft 20. This blind axial housing 30A here extends over a length less than or equal to half of the core length 30.

Avantageusement, la paroi de fond du logement axial borgne 30A présente une surface d'appui 30B conique en creux complémentaire de l'extrémité du foret de la perceuse qui vient usiner ce logement axial borgne 30A.Advantageously, the bottom wall of the blind axial housing 30A has a bearing surface 30B conically recessed complementary to the drill end of the drill which machined this blind axial housing 30A.

L'extrémité libre 20A de l'arbre 20 présente quant à elle une surface conique en saillie qui s'engage dans la surface d'appui 30B conique en creux de la paroi de fond du logement axial borgne 30A pour y prendre appui axialement.The free end 20A of the shaft 20 has a conical surface protruding which engages in the bearing surface 30B conical recessed bottom wall of the blind axial housing 30A to bear axially.

Selon le mode de réalisation préférentiel représenté sur les figures 3 à 7, la surface conique en saillie de l'extrémité libre 20A de l'arbre 20 est tronquée de sorte que seule une portion de l'extrémité libre 20A vienne en appui contre la paroi de fond du logement 30A, limitant ainsi les frottements de l'arbre 20 contre le noyau 30. Cela permet avantageusement d'éviter un coincement entre le noyau 30 et l'arbre 20 lorsque le noyau 30 tourne autour de l'arbre 20 fixe en rotation. Les angles au sommet des surfaces coniques du logement axial borgne 30A et de l'extrémité libre 20A de l'arbre 20 sont identiques.According to the preferred embodiment shown in FIGS. 3 to 7, the conical surface projecting from the free end 20A of the shaft 20 is truncated so that only a portion of the free end 20A bears against the wall bottom of the housing 30A, thus limiting the friction of the shaft 20 against the core 30. This advantageously avoids a wedging between the core 30 and the shaft 20 when the core 30 rotates around the fixed shaft 20 rotation. The apex angles of the conical surfaces of the blind axial housing 30A and the free end 20A of the shaft 20 are identical.

Bien entendu, selon une variante non représentée, on pourrait prévoir que l'extrémité libre de l'arbre présente une forme en cône ou en pointe non tronquée.Of course, according to a variant not shown, it could be provided that the free end of the shaft has a cone shape or non-truncated tip.

En outre, il est prévu dans le dispositif de manoeuvre bistable 100 des moyens de déplacement en translation du noyau 30 depuis le flasque arrière 40 vers le flasque avant 90.In addition, there is provided in the bistable actuator 100 translational displacement means of the core 30 from the rear flange 40 to the front flange 90.

Ici, ces moyens de déplacement en translation du noyau 30 comprennent une bobine 80 positionnée dans le logement 11 intérieur de la carcasse 10 de sorte que son corps 80A entoure le noyau 30. Comme le montrent les figures 1 et 3, le corps 80A cylindrique de révolution de la bobine comporte un alésage intérieur 83 dont le diamètre est égal, au jeu près, au diamètre externe du premier fût 31 de grand diamètre du noyau 30. Le corps 80A de la bobine 80 porte extérieurement un enroulement de fils conducteurs 80B pour former la bobine 80. Il porte en outre à ses deux extrémités des flasques 81,84 venant se positionner contre les faces internes des flasques arrière 40 et avant 90 fermant la carcasse 10 (voir figure 1).Here, these translational displacement means of the core 30 comprise a coil 80 positioned in the housing 11 inside the carcass 10 so that its body 80A surrounds the core 30. As shown in Figures 1 and 3, the cylindrical body 80A of revolution of the coil has a bore inside 83 whose diameter is equal, with the clearance, the outer diameter of the first drum 31 of large diameter of the core 30. The body 80A of the coil 80 externally carries a winding son 80B conductors to form the coil 80. It carries in in addition to its two ends 81.84 flanges being positioned against the inner faces of the rear flanges 40 and before 90 closing the carcass 10 (see Figure 1).

La bobine 80 est destinée à être alimentée en impulsions de courant électrique pour générer un champ magnétique engendrant l'effort de traction dudit noyau 30 depuis le flasque arrière 40 vers le flasque avant 90.The coil 80 is intended to be supplied with pulses of electric current to generate a magnetic field generating the tensile force of said core 30 from the rear flange 40 to the front flange 90.

Par ailleurs, comme le montrent les figures 1, 4A à 4C, 8A, 8B et 9, le deuxième fût 32 de petit diamètre du noyau 30 comporte des moyens de positionnement 34 de l'arbre 20 dans une de ses positions stables. Ici, ces moyens de positionnement 34 portés par le deuxième fût 32 du noyau sont aptes à positionner l'arbre 20 dans la deuxième position stable qui est une position en retrait du flasque arrière 40, matérialisée sur les figures 4C et 8B. Cette deuxième position stable correspond à la mise en contact du contact mobile 2 avec les contacts fixes 3.Furthermore, as shown in Figures 1, 4A to 4C, 8A, 8B and 9, the second small diameter barrel 32 of the core 30 comprises positioning means 34 of the shaft 20 in one of its stable positions. Here, these positioning means 34 carried by the second shaft 32 of the core are adapted to position the shaft 20 in the second stable position which is a recessed position of the rear flange 40, shown in Figures 4C and 8B. This second stable position corresponds to the contacting of the movable contact 2 with the fixed contacts 3.

Ces moyens de positionnement comprennent une piste 34 ménagée en creux sur le deuxième fût 32 de petit diamètre du noyau 30 et au moins un pion 42 solidaire du palier 41 et destiné à coopérer avec la piste 34.These positioning means comprise a track 34 formed in recess on the second small diameter shaft 32 of the core 30 and at least one pin 42 integral with the bearing 41 and intended to cooperate with the track 34.

Cette piste 34 associée au pion 42 forme également des moyens de guidage en rotation du noyau 30 autour de l'arbre 20.This track 34 associated with the pin 42 also forms means for rotating the core 30 around the shaft 20.

Ici la piste 34 comprend trois modules identiques, dont un module est représenté en détail sur la figure 9, juxtaposés et couvrant chacun un secteur angulaire de 120°. Il est prévu également sur le palier 41 trois pions 42 disposés à 120° l'un de l'autre qui coopèrent chacun avec un module de la piste 34.Here the track 34 comprises three identical modules, a module of which is shown in detail in FIG. 9, juxtaposed and each covering an angular sector of 120 °. It is also provided on the bearing 41 three pins 42 arranged at 120 ° from each other which each cooperate with a module of the track 34.

Comme le montre plus particulièrement la figure 1, chaque pion 42 est engagé dans un trou traversant la paroi cylindrique du palier 41 de telle sorte qu'il forme une saillie à l'intérieur du palier 41 pour coopérer avec la piste 34 du deuxième fût 32 du noyau 30 engagé dans ledit palier 41.As shown more particularly in Figure 1, each pin 42 is engaged in a hole through the cylindrical wall of the bearing 41 so that it forms a projection inside the bearing 41 to cooperate with the track 34 of the second shaft 32 core 30 engaged in said bearing 41.

Comme le montre plus particulièrement la figure 1, le noyau 30 comporte à son extrémité située du côté de ladite piste 34 une encoche 35 et le flasque arrière 40 solidaire du palier 41 portant chaque pion 42 comporte sur sa face extérieure un détrompeur 44 (ici un trou), ladite encoche 35 et ledit détrompeur 44 étant adaptés à indexer les positions respectives du noyau 30 et du flasque arrière 40 solidaire du palier 41 dans une machine de montage dudit noyau 30 dans le palier 41 portant chaque pion 42, pour éviter lors du montage un écrasement de chaque pion 42 contre le noyau 30.As shown more particularly in Figure 1, the core 30 has at its end located on the side of said track 34 a notch 35 and the rear flange 40 secured to the bearing 41 carrying each pin 42 has on its outer face a polarizer 44 (here a hole), said notch 35 and said polarizer 44 being adapted to index the respective positions of the core 30 and the rear flange 40 secured to the bearing 41 in a machine for mounting said core 30 in the bearing 41 carrying each pin 42, to avoid during assembly a crush of each pin 42 against the core 30.

Ainsi, grâce à l'indexation des positions du noyau 30 et du flasque arrière 40 dans la machine de montage, on est sûr qu'au montage du noyau 30 dans le palier 41 solidaire du flasque arrière 40, chaque pion 42 vient se positionner dans le fond d'un creux d'un module de la piste 34 portée par le noyau 30 comme cela est représenté sur la figure 1 par exemple.Thus, by indexing the positions of the core 30 and the rear flange 40 in the mounting machine, it is certain that mounting the core 30 in the bearing 41 integral with the rear flange 40, each pin 42 is positioned in the bottom of a hollow of a module of the track 34 carried by the core 30 as shown in Figure 1 for example.

Comme le montre la figure 9, la piste 34 portée par le deuxième fût 32 du noyau 30 comprend, par module, une position stable P5 et deux positions intermédiaires P3, P7 de réception du pion 42 correspondant, disposées de part et d'autre de la position stable P5, ainsi que des rampes R1-R4 de passage d'une position à la position suivante.As shown in FIG. 9, the track 34 carried by the second shank 32 of the core 30 comprises, per module, a stable position P 5 and two intermediate positions P 3 , P 7 for receiving the corresponding pin 42, arranged on both sides. other of the stable position P 5 , as well as ramps R 1 -R 4 passing from one position to the next position.

Le décrochement 33 annulaire formé à la jonction entre le premier et le deuxième fûts 31,32 du noyau 30 est apte à prendre appui contre le bord circulaire du palier 41, partie fixe du dispositif de manoeuvre bistable 100, pour positionner l'arbre dans l'autre de ses positions stables, ici dans sa première position stable correspondant à la position dans laquelle le contact mobile 2 est placé à distance des contacts fixes 3 de manière à être hors contact électrique.The annular recess 33 formed at the junction between the first and second barrels 31, 32 of the core 30 is able to bear against the circular edge of the bearing 41, a fixed part of the bistable actuator 100, to position the shaft in the housing. other of its stable positions, here in its first stable position corresponding to the position in which the movable contact 2 is placed at a distance from the fixed contacts 3 so as to be out of electrical contact.

En particulier, dans cette première position stable de l'arbre 20, le décrochement 33 du noyau 30 est positionné en appui contre le joint annulaire 50 porté par l'extrémité du palier 41 et fait saillie vers l'extérieur du flasque arrière 40.In particular, in this first stable position of the shaft 20, the recess 33 of the core 30 is positioned in abutment against the annular seal 50 carried by the end of the bearing 41 and projects outwardly from the rear flange 40.

Avantageusement, le dispositif de manoeuvre bistable 100 comporte des moyens de rappel de l'arbre 20 dans sa première position stable constitués ici par un ressort de rappel 70.Advantageously, the bistable actuating device 100 comprises return means of the shaft 20 in its first stable position constituted here by a return spring 70.

Plus précisément, du côté du flasque avant 90, à l'intérieur de la carcasse 10, le ressort de rappel 70 est enfilé sur l'arbre 20 et est engagé au moins partiellement dans le palier 91 du flasque avant 90.More specifically, on the side of the front flange 90, inside the carcass 10, the return spring 70 is threaded onto the shaft 20 and is engaged at least partially in the bearing 91 of the front flange 90.

Deux manchons 71, 72 sont engagés à l'intérieur des extrémités du ressort de rappel 70 et sont enfilés sur l'arbre 20. Ces manchons 71, 72 présentent un diamètre extérieur sensiblement égal au diamètre intérieur du ressort de rappel 70 et un diamètre intérieur sensiblement égal au diamètre de l'arbre 20. Ils portent chacun une couronne périphérique contre laquelle s'appuie l'extrémité correspondante du ressort de rappel 70.Two sleeves 71, 72 are engaged inside the ends of the return spring 70 and are threaded onto the shaft 20. These sleeves 71, 72 have an outer diameter substantially equal to the inner diameter of the return spring 70 and an inner diameter substantially equal to the diameter of the shaft 20. They each carry a peripheral ring against which rests the corresponding end of the return spring 70.

La couronne périphérique de l'un des manchons 71 est située à mi-hauteur de son corps cylindrique et est destinée à prendre appui, d'un côté, sur une des extrémités du ressort de rappel 70, et, de l'autre, sur une partie fixe du dispositif de manoeuvre bistable 100, à savoir le fond du palier 91 du logement du flasque avant 90.The peripheral ring of one of the sleeves 71 is located halfway up its cylindrical body and is intended to bear, on one side, on one end of the return spring 70, and, on the other, on a fixed part of the bistable actuating device 100, namely the bottom of the bearing 91 of the housing of the front flange 90.

La couronne périphérique de l'autre des manchons 72 est située à l'extrémité de son corps cylindrique et est destinée à prendre appui, du côté de cette extrémité, sur une butée 21 de l'arbre 20, et, de l'autre, sur l'autre des extrémités du ressort de rappel 70.The peripheral ring of the other sleeve 72 is located at the end of its cylindrical body and is intended to bear, on the side of this end, on a stop 21 of the shaft 20, and, on the other, on the other end of the return spring 70.

Le ressort de rappel 70 est par conséquent adapté à être disposé en compression entre une partie fixe du dispositif de manoeuvre bistable 100 et une butée 21 de l'arbre 20. Il travaille en compression et est capable de ramener l'arbre 20 depuis sa deuxième position stable vers sa première position stable.The return spring 70 is therefore adapted to be placed in compression between a fixed part of the bistable actuating device 100 and a stop 21 of the shaft 20. It works in compression and is capable of bringing the shaft 20 back from its second stable position towards its first stable position.

Comme le montre plus particulièrement la figure 3, la butée 21 vient de formation avec l'arbre 20. Plus précisément, la butée 21 est formée par une couronne périphérique de l'arbre contre laquelle appuie le ressort de rappel 70 par l'intermédiaire de l'un des manchons 72.As shown more particularly in Figure 3, the stop 21 comes from formation with the shaft 20. More specifically, the stop 21 is formed by a peripheral ring of the shaft against which the return spring 70 is supported by means of one of the sleeves 72.

En variante, comme le montre la figure 7, l'arbre 20 peut présenter deux parties de diamètre différents qui se raccordent au niveau d'un décrochement formant un épaulement 22. Plus précisément, l'arbre 20 présente, du côté de son extrémité libre 20A, un diamètre plus important que sur la partie restante de sa longueur de l'arbre 20 si bien que l'épaulement 22 forme une butée contre laquelle appuie le ressort de rappel 70 par l'intermédiaire de l'un des manchons 72.Alternatively, as shown in Figure 7, the shaft 20 may have two different diameter parts which are connected at a recess forming a shoulder 22. More specifically, the shaft 20 has, on the side of its free end 20A, a greater diameter than the remaining portion of its length of the shaft 20 so that the shoulder 22 forms a stop against which the return spring 70 is supported by means of one of the sleeves 72.

On remarquera que la butée 21 ; 22, qu'elle soit formée par une couronne ou par un épaulement, présente une robustesse importante lui permettant de résister à de fortes contraintes sur une grand nombre de cycles d'utilisation.It will be noted that the stop 21; 22, that it is formed by a crown or by a shoulder, has a high robustness allowing it to withstand strong constraints over a large number of cycles of use.

Selon un autre mode de réalisation de l'invention représenté sur la figure 5, la butée 23 est rapportée sur l'arbre 20. Plus précisément, la butée 23 est formée par une goupille de longueur supérieur au diamètre de l'arbre 20, qui est engagée dans une ouverture transversale traversante de l'arbre 20, à proximité de son extrémité libre 20A. Ainsi, la goupille fait saillie de part et d'autre de l'arbre 20 si bien qu'elle forme un appui rigide pour l'un des manchons 72 et donc pour le ressort de rappel 70.According to another embodiment of the invention shown in FIG. 5, the abutment 23 is attached to the shaft 20. More specifically, the abutment 23 is formed by a pin longer than the diameter of the shaft 20, which is engaged in a transverse opening through the shaft 20, near its free end 20A. Thus, the pin protrudes from both sides of the shaft 20 so that it forms a rigid support for one of the sleeves 72 and therefore for the return spring 70.

En variante, comme le montre la figure 6, la butée 24 peut être formée par un circlip (ou par un cavalier afin de rendre l'assemblage du dispositif plus aisé) engagé dans une rainure périphérique de l'arbre 20. L'un des manchons 72 est ainsi adapté à prendre appui contre ce circlip.Alternatively, as shown in Figure 6, the stop 24 may be formed by a circlip (or a jumper to make the assembly of the device easier) engaged in a peripheral groove of the shaft 20. One of Sleeves 72 is thus adapted to bear against this circlip.

On remarquera que la butée 23 ; 24, qu'elle soit formée par une goupille ou par un circlip, présente une robustesse suffisamment importante pour lui permettre de résister aux contraintes exercées par le ressort de rappel 70 sur un grand nombre de cycles d'utilisation.It will be noted that the stop 23; 24, whether it is formed by a pin or a circlip, has a robustness large enough to enable it to withstand the stresses exerted by the return spring 70 over a large number of cycles of use.

En effet, par rapport à l'état de la technique dans lequel le circlip transmet les efforts, non seulement du ressort de rappel 70 vers l'arbre 20 mais aussi du noyau 30 vers l'arbre 20, il ne transmet ici que les efforts exercés par le ressort de rappel 70 sur l'arbre 20 (les efforts exercés par le noyau 30 sur l'arbre 20 étant transmis par la surface d'appui 30B du noyau 30 sur l'extrémité libre 20A de l'arbre). Or, les efforts et contraintes exercés par le noyau 30 sont plus grands que ceux exercés par le ressort de rappel 70. Ainsi, un simple circlip permet ici de résister aux efforts et contraintes exercés par le ressort de rappel 70 sur un grand nombre de cycles d'utilisation.Indeed, compared with the state of the art in which the circlip transmits the forces, not only of the return spring 70 to the shaft 20 but also of the core 30 to the shaft 20, it transmits here only the forces exerted by the return spring 70 on the shaft 20 (the forces exerted by the core 30 on the shaft 20 being transmitted by the bearing surface 30B of the core 30 on the free end 20A of the shaft). However, the forces and stresses exerted by the core 30 are greater than those exerted by the return spring 70. Thus, a simple circlip here makes it possible to withstand the forces and stresses exerted by the return spring 70 over a large number of cycles. use.

Quoi qu'il en soit, comme le montre plus précisément la figure 1, le travail du ressort de rappel 70 est aidé par un autre ressort de rappel 5 monté sur l'extrémité de l'arbre 20 qui dépasse du dispositif de manoeuvre bistable 100. Cet autre ressort de rappel 5 plus important est comprimé entre l'écrou 7 qui maintient le contact mobile 2 et une rondelle 8 fixée sur l'arbre 20 au moyen d'un clip 6 engagé dans une autre rainure annulaire de l'arbre 20.Anyway, as shown more specifically in Figure 1, the work of the return spring 70 is assisted by another return spring 5 mounted on the end of the shaft 20 protruding from the bistable actuator 100 This other larger return spring 5 is compressed between the nut 7 which holds the moving contact 2 and a washer 8 fixed to the shaft 20 by means of a clip 6 engaged in another annular groove of the shaft 20. .

En référence aux figures 4A à 4C, 8A, 8B et 9, nous allons maintenant décrire le fonctionnement du dispositif de manoeuvre bistable 100.With reference to FIGS. 4A to 4C, 8A, 8B and 9, we will now describe the operation of the bistable actuator 100.

Sur la figure 4A, l'arbre 20 est positionné dans sa première position stable qui est une position en saillie, c'est-à-dire une position dans laquelle le deuxième fût 32 de petit diamètre du noyau 30 fait saillie du flasque arrière 40 fermant le logement 11 intérieur de la carcasse 10 du dispositif de manoeuvre 100.In Fig. 4A, the shaft 20 is positioned in its first stable position which is a projecting position, i.e. a position in which the second small diameter barrel 32 of the core 30 projects from the rear flange 40 closing the housing 11 inside the carcass 10 of the operating device 100.

Dans cette position, le décrochement 33 formé à la jonction des premier et deuxième fûts 31,32 du noyau 30 est en appui contre l'extrémité du palier 41 en comprimant le joint 50, et chaque pion 42 est positionné dans chaque module de piste 34 en position P1, P'1 à une distance du fond de la piste 34 préférentiellement supérieure ou égale au millimètre.In this position, the recess 33 formed at the junction of the first and second drums 31,32 of the core 30 is in abutment against the end of the bearing 41 by compressing the seal 50, and each pin 42 is positioned in each module of track 34 in position P 1 , P ' 1 at a distance from the bottom of the track 34 preferably greater than or equal to one millimeter.

Lorsque la bobine 80 est alimentée par une impulsion de courant électrique, le noyau 30 est soumis à l'action d'une force de traction engendrée par le champ magnétique généré par la bobine 80 dans le noyau, qui tend à déplacer en translation le noyau 30 de l'arrière vers l'avant, c'est-à-dire du flasque arrière 40 vers le flasque avant 90. La course du noyau est limitée par la mise en butée de la face avant de son premier fût 31 contre l'extrémité du palier 91 porté par le flasque avant 90 (voir figure 4B). L'extrémité libre 20A de l'arbre 20 étant en appui contre la surface d'appui 30B du noyau 30, ce déplacement du noyau 30 engendre une translation de l'arbre 20 depuis sa première position stable vers une position intermédiaire.When the coil 80 is powered by an electric current pulse, the core 30 is subjected to the action of a traction force generated by the magnetic field generated by the coil 80 in the core, which tends to move the core in translation 30 from the rear to the front, that is from the rear flange 40 to the front flange 90. The race of the core is limited by the abutment of the front face of its first barrel 31 against the end of the bearing 91 carried by the front flange 90 (see Figure 4B). The free end 20A of the shaft 20 being in abutment against the bearing surface 30B of the core 30, this movement of the core 30 causes a translation of the shaft 20 from its first stable position to an intermediate position.

Simultanément, le ressort de rappel 70 interposé entre ledit noyau 30 et le flasque avant 90 se comprime et vient se loger complètement dans le palier 91 porté par ce flasque avant 90 (voir figure 4B).Simultaneously, the return spring 70 interposed between said core 30 and the front flange 90 is compressed and is housed completely in the bearing 91 carried by the front flange 90 (see Figure 4B).

Simultanément, le ressort de rappel 5 se comprime également.Simultaneously, the return spring 5 also compresses.

Lors de ce mouvement en translation du noyau 30, chaque pion 42 coopère avec le module correspondant de la piste 34 pour prendre la position intermédiaire P2 venant en appui contre la rampe R1 du module correspondant de sorte que chaque rampe R1 guide chaque pion 42 vers la position intermédiaire P3 (figure 8A). Le mouvement de chacun des pions 42 dans chaque module de la piste 34 provoque la rotation d'un angle de 30° du noyau 30 de façon concomitante à son mouvement de translation.During this movement in translation of the core 30, each pin 42 cooperates with the corresponding module of the track 34 to take the intermediate position P 2 bearing against the ramp R 1 of the corresponding module so that each ramp R 1 guides each piece 42 to the intermediate position P 3 (Figure 8A). The movement of each of the pins 42 in each module of the track 34 causes the rotation of an angle of 30 ° of the core 30 concomitantly with its translational movement.

Lorsque le noyau 30 atteint la position représentée sur la figure 4B en appui contre le palier 91 porté par le flasque avant 90 du dispositif de manoeuvre, chaque pion 42 a atteint la position intermédiaire P3 dans le module correspondant de la piste 34.When the core 30 reaches the position shown in Figure 4B bearing against the bearing 91 carried by the front flange 90 of the actuating device, each pin 42 has reached the intermediate position P 3 in the corresponding module of the track 34.

L'impulsion électrique ayant cessé, l'alimentation de la bobine 80 étant coupée, l'arbre 20, et par conséquent le noyau 30, se trouvent alors soumis à la force de rappel du ressort de rappel 70 aidé par le ressort de rappel 5 qui tend à ramener le noyau 30 vers sa position initiale, c'est-à-dire en saillie du flasque arrière 40.Once the electric pulse has stopped, the supply of the coil 80 being cut off, the shaft 20, and consequently the core 30, are then subjected to the restoring force of the return spring 70 aided by the return spring 5. which tends to return the core 30 to its initial position, that is to say projecting from the rear flange 40.

Lors de ce déplacement en translation du noyau, chaque pion 42 navigue dans chaque module de la piste 34 de manière à prendre successivement les positions P4 et P5. La position P4 de chaque pion 42 correspond à une mise en appui contre une rampe R2 tendant à l'amener vers une position stable en fond de piste, la position P5.During this movement in translation of the core, each pin 42 navigates in each module of the track 34 so as to take successively the positions P 4 and P 5 . The position P 4 of each pin 42 corresponds to a bearing against a ramp R 2 tending to bring it to a stable position at the bottom of the track, the position P 5 .

Lorsque chaque pion 42 passe de la position P3 à la position P5 qui correspond à une position bloquée du pion au fond d'un creux de chaque module de piste, le noyau pivote toujours dans le même sens d'un angle de 30° autour de l'arbre 20. Cette position P5 de chaque pion 42 bloqué au fond d'un creux de chaque module de la piste 34 correspond à la deuxième position stable de l'arbre 20 qui est une position en retrait à l'intérieur du dispositif de manoeuvre bistable 100 dans laquelle le contact mobile 2 est en contact avec les contacts fixes 3 (figure 8B).When each pin 42 moves from the position P 3 to the position P 5 which corresponds to a locked position of the pin at the bottom of a recess of each track module, the core always pivots in the same direction by an angle of 30 ° around the shaft 20. This position P 5 of each pin 42 locked at the bottom of a recess of each module of the track 34 corresponds to the second stable position of the shaft 20 which is a recessed position inside. the bistable actuator 100 in which the movable contact 2 is in contact with the fixed contacts 3 (Figure 8B).

Dans cette deuxième position stable de l'arbre 20 représentée sur la figure 4C, le ressort de rappel 70 est encore comprimé par rapport à la position initiale de l'arbre 20 correspondant à la première position stable représentée sur la figure 4A.In this second stable position of the shaft 20 shown in Figure 4C, the return spring 70 is further compressed relative to the initial position of the shaft 20 corresponding to the first stable position shown in Figure 4A.

Lorsqu'une nouvelle impulsion électrique est donnée à la bobine 80, celle-ci génère un champ magnétique engendrant une force de traction du noyau 30 de l'arrière vers l'avant, comme décrit précédemment.When a new electrical pulse is given to the coil 80, it generates a magnetic field generating a tensile force of the core 30 from the back to the front, as previously described.

Lors de ce déplacement en translation, chaque ressort, et en particulier le ressort de rappel 70, se comprime de nouveau. Le noyau 30 entraîne en translation l'arbre 20 par la mise en appui de son extrémité libre 20A contre la surface d'appui 30B du noyau 30, et chaque pion 42 porté par le palier 41 se déplace dans chaque module de piste 34 de manière à prendre la position P6 en appui contre la rampe R3 pour arriver vers la position P7 qui est une position intermédiaire. Le passage de la position P5 à la position P7 de chaque pion 42 provoque la rotation d'un angle de 30° du noyau 30 dans le même sens que les rotations précédentes. Il n'y a pas de retour en arrière.During this displacement in translation, each spring, and in particular the return spring 70, compresses again. The core 30 drives the shaft 20 in translation by the bearing of its free end 20A against the bearing surface 30B of the core 30, and each pin 42 carried by the bearing 41 moves in each track module 34 so as to to take the position P 6 bearing against the ramp R 3 to reach the position P 7 which is an intermediate position. The passage from the position P 5 to the position P 7 of each pin 42 causes the rotation of an angle of 30 ° of the core 30 in the same direction as the previous rotations. There is no turning back.

Enfin l'alimentation de la bobine 80 étant de nouveau coupée, le ressort de rappel 70 aidé par le ressort de rappel 5 tend à se détendre et à pousser de nouveau le noyau 30 vers le flasque arrière 40 du dispositif de manoeuvre entraînant ainsi l'arbre 20 vers sa première position stable représentée sur la figure 4A.Finally, the supply of the coil 80 being cut again, the return spring 70 aided by the return spring 5 tends to relax and to push the core 30 again towards the rear flange 40 of the maneuvering device thus causing the shaft 20 to its first stable position shown in Figure 4A.

Lors de ce mouvement de translation, chaque pion 42 se déplace dans chaque module de la piste 34 de façon à prendre successivement la position P8 en appui contre la rampe R4 du module correspondant de la piste 34 vers la position P'1 d'origine. Ce passage de la position P7 à la position P'1 provoque la rotation d'un angle de 30° du noyau 30 dans le même sens jusqu'à ce que celui-ci vienne en butée par son décrochement 33 annulaire contre l'extrémité du palier 41 en appui contre le joint annulaire 50.During this translational movement, each pin 42 moves in each module of the track 34 so as to successively assume the position P 8 in support against the ramp R 4 of the corresponding module of the track 34 to the original position P ' 1 . This passage from the position P 7 to the position P ' 1 causes the rotation of an angle of 30 ° of the core 30 in the same direction until it abuts by its recess 33 annular against the end bearing 41 bearing against the annular seal 50.

Le déplacement du noyau 30 entraîne le déplacement de l'arbre 20 qui entraîne le contact mobile 2 en éloignement des contacts fixes 3. L'arbre 20 reprend alors sa position d'origine qui est sa première position stable dans laquelle il maintient le contact mobile 2 à distance des contacts fixes 3.The displacement of the core 30 causes the displacement of the shaft 20 which causes the moving contact 2 away from the fixed contacts 3. The shaft 20 then resumes its original position which is its first stable position in which it maintains the moving contact 2 away from the fixed contacts 3.

La présente invention n'est nullement limitée aux modes de réalisation décrits et représentés, mais l'homme du métier saura y apporter toute variante conforme à son esprit.The present invention is not limited to the embodiments described and shown, but the skilled person will be able to make any variant within his mind.

Claims (10)

Dispositif de manoeuvre bistable (100), en translation, d'un arbre (20) mobile entre deux positions stables, comprenant un noyau (30) en matériau magnétique comportant un logement axial borgne (30A) qui s'étend sur une partie de la longueur dudit noyau (30) et dans lequel est engagée une partie de l'arbre (20), des moyens de déplacement en translation dudit noyau (30) qui comprennent une bobine (80) entourant ledit noyau destinée à être alimentée en courant électrique pour générer un champ magnétique engendrant un effort de traction dudit noyau (30) et des moyens de déplacement en rotation (42,34) du noyau adaptés à provoquer une rotation du noyau d'un angle donné de façon concomitante à son mouvement de translation, caractérisé que ledit logement axial borgne comporte une surface d'appui (30B) conique en creux et l'arbre comporte une extrémité libre (20A) présentant une surface conique en saillie qui s'engage dans ladite surface d'appui (30B) conique en creux pour y prendre appui axialement.Bistable maneuvering device (100), in translation, of a shaft (20) movable between two stable positions, comprising a core (30) of magnetic material comprising a blind axial housing (30A) which extends over part of the length of said core (30) and in which is engaged a portion of the shaft (20), translational displacement means of said core (30) which comprise a coil (80) surrounding said core to be supplied with electric current for generating a magnetic field generating a tensile force of said core (30) and rotational displacement means (42,34) of the core adapted to cause a rotation of the core of a given angle concomitantly with its translational movement, characterized that said blind axial housing comprises a bearing surface (30B) and the tapered hollow shaft has a free end (20A) having a conical projecting surface which engages said bearing surface (30B) conical hollow p to support it axially. Dispositif de manoeuvre bistable (100) selon la revendication 1, caractérisé en ce que ladite surface conique en saillie de ladite extrémité libre (20A) de l'arbre (20) est une surface conique tronquée.Bistable actuator (100) according to claim 1, characterized in that said conical surface projecting from said free end (20A) of the shaft (20) is a truncated conical surface. Dispositif de manoeuvre bistable (100) selon l'une des revendications précédentes, caractérisé en ce qu'il comporte des moyens de rappel de l'arbre (20) dans une de ses positions stables, constitués par un ressort de rappel (70) disposé en compression entre une partie fixe (90) du dispositif de manoeuvre bistable (100) et une butée (21 ; 22 ; 23 ; 24) de l'arbre (20).Bistable actuator (100) according to one of the preceding claims, characterized in that it comprises means for returning the shaft (20) in one of its stable positions, constituted by a return spring (70) arranged in compression between a fixed part (90) of the bistable actuator (100) and a stop (21; 22; 23; 24) of the shaft (20). Dispositif de manoeuvre bistable (100) selon la revendication 3, caractérisé en ce que ladite butée (21 ; 22) vient de formation avec l'arbre (20).Bistable actuator (100) according to claim 3, characterized in that said abutment (21; 22) is formed with the shaft (20). Dispositif de manoeuvre bistable (100) selon l'une des revendications 3 et 4, caractérisé en ce que ladite butée (21) est formée par une couronne périphérique de l'arbre (20).Bistable actuator (100) according to one of claims 3 and 4, characterized in that said stop (21) is formed by a peripheral ring of the shaft (20). Dispositif de manoeuvre bistable (100) selon l'une des revendications 3 et 4, caractérisé en ce que ladite butée (22) est formée par un épaulement de l'arbre (20).Bistable actuator (100) according to one of claims 3 and 4, characterized in that said abutment (22) is formed by a shoulder of the shaft (20). Dispositif de manoeuvre bistable (100) selon la revendication 3, caractérisé en ce que ladite butée (23 ; 24) est rapportée sur l'arbre (20).Bistable actuator (100) according to claim 3, characterized in that said stop (23; 24) is attached to the shaft (20). Dispositif de manoeuvre bistable (100) selon la revendication 7, caractérisé en ce que ladite butée (23) est formée par une goupille engagée dans une ouverture transversale traversante de l'arbre (20).Bistable actuator (100) according to claim 7, characterized in that said stop (23) is formed by a pin engaged in a transverse opening through the shaft (20). Dispositif de manoeuvre bistable (100) selon la revendication 7, caractérisé en ce que ladite butée (24) est formée par un cavalier ou un circlip engagé dans une rainure périphérique de l'arbre (20).Bistable actuator (100) according to claim 7, characterized in that said stop (24) is formed by a jumper or circlip engaged in a peripheral groove of the shaft (20). Coupe-circuit (1) de batteries d'accumulateur d'une installation électrique embarquée sur un véhicule, caractérisé en ce qu'il comprend un dispositif de manoeuvre bistable (100) selon l'une des revendications précédentes.Circuit breaker (1) for accumulator batteries of an on-vehicle electrical installation, characterized in that it comprises a bistable operating device (100) according to one of the preceding claims.
EP07290423A 2006-04-11 2007-04-06 Bistable manoeuvring device of a mobile shaft and battery cutout comprising such a device Withdrawn EP1845546A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0603191A FR2899721B1 (en) 2006-04-11 2006-04-11 BISTABLE MANEUVER DEVICE OF A MOBILE SHAFT AND BATTERY CUTTER COMPRISING SUCH A DEVICE

Publications (2)

Publication Number Publication Date
EP1845546A2 true EP1845546A2 (en) 2007-10-17
EP1845546A3 EP1845546A3 (en) 2009-01-07

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP07290424A Withdrawn EP1845547A3 (en) 2006-04-11 2007-04-06 Bistable manoeuvring device of a mobile shaft and battery cutout comprising such a device
EP07290423A Withdrawn EP1845546A3 (en) 2006-04-11 2007-04-06 Bistable manoeuvring device of a mobile shaft and battery cutout comprising such a device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP07290424A Withdrawn EP1845547A3 (en) 2006-04-11 2007-04-06 Bistable manoeuvring device of a mobile shaft and battery cutout comprising such a device

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EP (2) EP1845547A3 (en)
FR (1) FR2899721B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8130064B2 (en) 2008-08-01 2012-03-06 Tyco Electronics Corporation Switching device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293835A (en) * 1980-01-28 1981-10-06 Roper Corporation Solenoid for an electric starting motor for garden tractor or the like
EP0099998A1 (en) * 1982-07-30 1984-02-08 Robert Bosch Gmbh Electromagnetic switch, especially for starter devices of internal-combustion engines
FR2865313A1 (en) * 2004-01-15 2005-07-22 Diamecans Bistable operating device for circuit breaker, has core mounted movably on movable shaft and comprising axial blind housing extending on part of length of core, where one end of shaft engages in housing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02250228A (en) * 1989-03-24 1990-10-08 Mitsubishi Electric Corp Electromagnetic switch device
US5245304A (en) * 1992-12-15 1993-09-14 Mitsubishi Denki Kabushiki Kaisha Electromagnetic switch for a starter motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293835A (en) * 1980-01-28 1981-10-06 Roper Corporation Solenoid for an electric starting motor for garden tractor or the like
EP0099998A1 (en) * 1982-07-30 1984-02-08 Robert Bosch Gmbh Electromagnetic switch, especially for starter devices of internal-combustion engines
FR2865313A1 (en) * 2004-01-15 2005-07-22 Diamecans Bistable operating device for circuit breaker, has core mounted movably on movable shaft and comprising axial blind housing extending on part of length of core, where one end of shaft engages in housing

Also Published As

Publication number Publication date
FR2899721B1 (en) 2010-11-05
EP1845547A2 (en) 2007-10-17
EP1845547A3 (en) 2009-01-07
FR2899721A1 (en) 2007-10-12
EP1845546A3 (en) 2009-01-07

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