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EP2056313A1 - Electromagnetic actuator and high or medium-voltage disconnecting switch equipped with such an actuator - Google Patents

Electromagnetic actuator and high or medium-voltage disconnecting switch equipped with such an actuator Download PDF

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Publication number
EP2056313A1
EP2056313A1 EP08167588A EP08167588A EP2056313A1 EP 2056313 A1 EP2056313 A1 EP 2056313A1 EP 08167588 A EP08167588 A EP 08167588A EP 08167588 A EP08167588 A EP 08167588A EP 2056313 A1 EP2056313 A1 EP 2056313A1
Authority
EP
European Patent Office
Prior art keywords
actuator
drive shaft
slider
lever
levers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08167588A
Other languages
German (de)
French (fr)
Other versions
EP2056313B1 (en
Inventor
Ernst Suter
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.)
General Electric Technology GmbH
Original Assignee
Areva T&D AG
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 Areva T&D AG filed Critical Areva T&D AG
Publication of EP2056313A1 publication Critical patent/EP2056313A1/en
Application granted granted Critical
Publication of EP2056313B1 publication Critical patent/EP2056313B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/26—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • H01H3/264—Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor using a travelling nut mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/0066—Auxiliary contact devices

Definitions

  • the invention relates to the field of actuators of the type comprising an electric motor and a gear for transmitting the movement of the motor to a drive shaft between two determined positions.
  • switch actuators such as disconnectors, and more particularly to medium or high voltage disconnectors.
  • the document CH 424932 discloses a switch actuator, comprising an electric motor, a toothed wheel 11 coupled to the motor output shaft and secured to a worm system 5,6 with a slider nut 6, which rotates, by means of a fork lever 7, a main shaft connected to a contact of the switch, such as a disconnector.
  • the fork lever 7 is configured to allow a free stroke to the nut 6 after the end of the movement of the main shaft. On this free stroke, the motor supply is cut off and the motor and the nut 6 of the auger system stop.
  • a package Belleville spring washer 20 damps the braking of the nut 6.
  • the worm 5 has a clearance that allows the disengagement of the nut 6 at the end of maneuvering.
  • the Belleville washers 20 allow the reengagement of the nut 6 in the screw 5 during the reverse rotation.
  • the abutment of the nut thus produced generates significant forces in the threaded spindle 5 of the worm system and in the frame 4.
  • the zone of disengagement of the nut 6 and the worm are subjected to heavy wear. This therefore requires resizing the mechanism with respect to its primary function required, namely the rotation of the main shaft. This document is not interested in how to control auxiliary switch contacts on a long run.
  • the document DE 1690093 discloses an improvement of the actuator according to the patent CH 424 932 , which consists in providing an additional switch for activating an electric brake of the motor during the free stroke (end-of-stroke phase of the slider 6).
  • the use of such an electric motor brake is not an optimized solution in terms of cost. It is necessary to remedy the constraints generated by the large short circuit current. Indeed, such a large short circuit current considerably increases the load on the electrical parts (coils, switches, ...) and the mechanical parts (fasteners, gears, ).
  • the document DE 1690093 solves this problem with a resistor electrically connected to the brake by transforming the electrical energy resulting from the braking into heat. This solution is expensive: use of a resistance, management of recovered heat ...
  • the document EP 0455039 discloses a switch actuator comprising a rotating pin 1 which moves a nut 2 forming a slider provided with an axis 5 housed in a slot 6 of a shape adapted to rotate a main shaft 4 integral with a contact of the switch.
  • an indication device 12 comprising a slot 13 and controlled by the axis 5 in displacement in order to pivot.
  • the indicating device 12 may be provided with a toothed section 15 in order to rotate a pinion 16 and its shaft 17 with which it is integral.
  • the rotation of the tree 17 actuates the auxiliary switch to turn off the power to the motor (not shown) which rotates pin 1.
  • the pivoting stroke of the indicating device 12 is not long enough.
  • the use of such a pinion 17 and the balance 3 is not a solution optimized in terms of cost.
  • this document does not propose a solution to slow down the movement at the end of the race.
  • the object of the invention is to propose a new type of electromechanical actuator, in particular for high or medium voltage disconnectors, which is less expensive and of increased reliability compared to those currently existing.
  • An electromechanical actuator is thus obtained at a reduced cost on the one hand, by reducing the number and weight of the parts used constituting the actuator and, on the other hand, by replacing parts, so far made by foundry techniques. , by pieces made from folded metal sheets.
  • each track comprises a second rectilinear part in continuity with the curved part, the length of the second rectilinear part allowing the sliding slider inside to stop without pivoting the levers, after the power supply of the electric motor has been switched off by the auxiliary switch in the switching position.
  • the two parts are interconnected by a first link.
  • the control levers can be connected to each other so as to pivot in the same direction of rotation.
  • one of the control levers is connected to the first auxiliary contact by a second link.
  • two cylinders extend parallel to the drive shaft and are positioned at such a distance that they each form a stop of the fork lever in one of the two determined positions of the shaft. drive.
  • the two control levers are preferably identical.
  • control lever is connected to a piece forming a slider, the connection between the lever and the slider being provided in such a way that, when the lever is in the rotated position corresponding to a position of the slider beyond the two determined positions, the slider in translation actuates a mechanical brake of the gear and, when the lever is in position unrotated corresponding to a position of the cursor between the two determined positions, the slider in opposite translation releases the mechanical brake.
  • the two pivoting levers thus arranged in the context of the invention rotate around a perpendicular axis under the action of the slider of the sliding nut on the spindle.
  • the pivoting of the levers is blocked during the movement of the main contact (s) (ux) of high voltage switch, such as a disconnector, which is provided with the actuator according to the invention.
  • the levers rotate during the end of the cursor's run.
  • the pivoting stroke of the parts is large enough to be able to use an auxiliary switch of power supply of the engine which is of a usual precision: in other words, it is not necessary to resort to an auxiliary switch very precise.
  • the actuator according to the invention defines a control device comprising two auxiliary levers, preferably identical, guided in rotation along two axes perpendicular to the pin arranged so that on the two end positions of the slider, the ratio of transmission between the linear displacement of the slider and the rotary movement of the levers is high.
  • This makes it possible to obtain, despite reduced production costs, high switching accuracy of the auxiliary switch and to use folded metal sheets instead of molded parts for the base, such as a foot plate, the main support and the actuator housing.
  • the actuator previously defined may comprise a frame of the actuator above, with at least one main support on which is rotatably mounted the drive shaft and a base on which are fixed the motor and the gear, the main support and the base being made advantageously from folded metal sheets.
  • the invention relates to a high or medium voltage switch comprising an electromechanical type actuator described above, in which the drive shaft is the drive shaft of the main contact (s). movable (s) of the switch, the determined positions of the drive shaft being the open and closed positions of the (es) main contact (s) (aux).
  • the figure 1 is a perspective view of an embodiment of the actuator 1 according to the invention.
  • the figure 2 is a perspective view of the actuator 1 according to the figure 1 on which the auxiliary switches are not shown, some of the frame and the transmission means according to the invention.
  • FIGS. 3A to 3E show, in partial view, the various consecutive steps of operation of the actuator 1 according to the figure 1 .
  • the figure 4 is a partial view of an actuator 1 according to the figure 1 showing the implantation of a mechanical brake according to the invention.
  • the figure 5 is a schematic view of a mechanical brake according to the invention.
  • the illustrated actuator 1 is a high voltage earthing switch actuator.
  • the actuator 1 comprises firstly a frame 2 comprising at least one base 20 and a main support 21 advantageously made of folded metal sheets.
  • An electric motor 3 and a gear 4 parallel to each other are fixed to the base 20.
  • a drive shaft 6 orthogonal to the electric motor 3 is rotatably mounted in the main support 21 and base 20.
  • the gear 4 comprises a motor 3 with an output shaft 30, intermediate gear wheels, and a toothed wheel 42.
  • the toothed wheel 42 is secured to a pin 40 in threaded engagement with a nut 41 provided with a pin of guidance and drive 410 and a slider axis 411 ( figure 2 ).
  • the lever is positioned to accommodate the guide pin 410 in the fork 50 between two determined positions on the pin 40 to rotate the drive shaft 6 between two specific positions.
  • the lever 5 fork 50 is rotated by the guide pin 410 or, in cooperation with the cylinders 9a, 9b, locked in one of two specific positions.
  • the fork lever 50 is integral with a drive shaft 6 to which is connected the moving main contact of the earthing switch (not shown).
  • the toothed wheel 42 is equipped with a torque limiting device (not shown) which limits the torque transmitted from the motor 3 to the drive shaft 6. This ensures that the position of the fork lever 50 and the cursor 411, connected to the control means, indication and signaling, always corresponds to that of the main contact of the disconnector, even in case of blockage.
  • the shaft 43 secured to the toothed wheel 430 is equipped with a mechanical brake 11 consisting of a winding spring with turns 110 as detailed below.
  • the actuator 1 further comprises a first auxiliary switch 7 to cut the power supply of the electric motor at the end of the stroke of the cursor 411.
  • transmission means 8 for transmitting the movement of the cursor 411 in limit switch to the first auxiliary switch 7 are planned.
  • the transmission means 8 comprise a set of two control levers 80a, 80b interconnected and one of which 80b is connected to a movable contact of the first auxiliary switch 7.
  • Each of the levers 80a, 80b is pivotable about an axis 81a, 81b orthogonal to the spindle 40 and is provided with a track 800a, 801a, 802a and 800b, 801b and 802b adapted to slidably receive the slider 411 regardless of its position on the spindle 40.
  • Each track has a first straight portion 800a, 800b, a curved portion 801a, 801b and 800b in continuity with its straight portion 800a so that, when the slider 411 is between its two positions, it slides successively in the straight portions 800b, 800a facing each other and aligned in the axis of the pin 40 and in one of the curved portions 801a, 801b of one of the tracks.
  • the sliding of the slider 411 in the curved portion 801a or 801b causes the pivoting of the control lever 80a or 80b which is provided and simultaneously the pivoting of the other lever 80b or 80a by a first link 82, and the displacement of the moving contact. of the auxiliary switch 7 by a second link 83.
  • two cylinders 9a, 9b extend parallel to the drive shaft 6 and are positioned at a distance such that they each form a stop of the fork lever 50 in one of the two predetermined positions. of the drive shaft 6.
  • control levers 80a, 80b are identical.
  • the actuator 1 comprises a second auxiliary switch 10, a movable contact is connected to the movable contact of the first auxiliary switch 7 by a third link 100 so that the movement of the auxiliary switch 7 causes simultaneously the displacement of the other auxiliary switch 10.
  • the position of the cursor 411 is detected by the two control levers 80a, 80b arranged in parallel above the pin 40.
  • Each lever 80a, 80b is adapted to pivot about an axis 81a, 81b orthogonal to the pin 40 and arranged on either side of the actuator 1.
  • the first rod 82 which connects the two levers 80a, 80b between them allows them to rotate simultaneously in the same direction.
  • the cursor 411 engaged in the tracks 800a, 801a, 802a, 800b, 801b and 802b thus pivots the levers 80a, 80b according to its position on the spindle 40.
  • the lever 5 fork 50 is advantageously made from two identical metal plates 500 parallel to each other and fixed to one another by several pins 501 and rigidly fixed to the drive shaft 6.
  • the distance between the two metal plates 500 is slightly greater than the height of the nut 41.
  • Each plate 500 comprises a straight slot 500a and in continuity with the inclined edges 500b and 500c.
  • the width the slot 500a is slightly larger than the diameter of the guide pin 410.
  • the rotational movement of the spindle 40 is transformed into translational movement of the nut 41 and guide pins 410, the latter being guided by the grooves 210 (parallel to the spindle 40) formed in the base 20 and the support 21.
  • the slot 500a converts the translation movement of the nut 41 through the pin 410 in a rotational movement of the drive shaft 6.
  • the inclined edges 500b, 500c interrupt the transmission of the movement if the one of the determined positions is reached and, in cooperation with the cylinders 9a and 9b, block the drive shaft 6 in this position.
  • the lever 5 is rotated by the guide pins 410 or blocked by one of the stops 9a, 9b at one of its ends and by the guiding pins 410 interacting with the inclined edges 500b, 500c at the other of its ends.
  • the angle of rotation of the fork lever 50 depends on the length and the radial position of the straight slots 500a with respect to the spindle 40. In the exemplary embodiment illustrated, the angle is 90 °.
  • Phase 1 The fork lever 50 is blocked by the stop 9b and by the guide pins 410.
  • the control levers 80a, 80b and the auxiliary switch 7 are in position "O".
  • the electric motor 3 is not powered.
  • the lever 5 is blocked by the stop 9b and the guide pins 410 in contact with the inclined edges 500c.
  • Phase 2 The electric motor 3 is put in tension and then moves the nut 41 on the pin 40 to the "I" position.
  • the lever 5 is blocked by the stop 9b and the guide pin 410 which moves along the inclined edges 500c.
  • the drive shaft 6 is stationary and the high voltage contact secured to the shaft 6 remains in the open position.
  • the nut 41 rotates the control lever 80b towards an intermediate position.
  • the control lever 80a then pivots simultaneously in the same direction thanks to the direct connection made with the first rod 82.
  • the cursor 411 moves in the rectilinear part 802b, and then in the curved part 801b, the control levers 80a, 80b turn clockwise.
  • the auxiliary switch 7 is actuated towards its intermediate position.
  • the mechanical brake 11 is then released, as will be described below.
  • Phase 3 The cursor 411 has reached the right part 800b and the guide pins 410 have reached at the same time the straight slots 500a of the lever 5.
  • the guide pins 410 slide in the right slot 500a of the fork lever 5.
  • the latter is then rotated, which also turns the drive shaft 6.
  • the moving main contact HT high voltage is then moved to the closed position.
  • the control levers 80a, 80b remain in the intermediate position, that is with the tracks 800a, 800b facing each other and aligned above the pin 40, and the cursor 411 passes from the track 800b from one of the levers 80b to the track 800a of the other levers 80a.
  • the auxiliary switch 7 remains in its intermediate position.
  • Phase 4 The fork lever 50 is blocked by the stopper 9b and the guide pins 410 which slide against the inclined edges 500b.
  • the main contact HT driven by the drive shaft 6 has reached its closed position.
  • the cursor 411 enters the curved portion 801a of the track 800a and the lever 80a moves to the position "I".
  • the lever 80b rotates in the same direction by the connection made with the first rod 82.
  • the movable contacts of the first of the auxiliary switches 7, are then moved by the second link 83 and arrive in the "I" position.
  • the power supply of the motor 3 is then cut and the mechanical brake 11 is actuated as described below to brake and stop the rotation of the shaft 43, and therefore that of the gear 4 and the motor 30.
  • the cursor 411 is stopped in the track 802a.
  • Phase 5 The motor 3 and the gear 4 are stopped completely. The final position is reached. Fork lever 50 is blocked by stopper 9a and guide pins 410 which engage with inclined edges 500b. In this phase 5), the cursor 411 is engaged in the rectilinear portion 802a of the track near the pivot axis 81a. During the engagement of the slider 411 in the curved portion 802a, the mechanical brake 11 is actuated, the auxiliary switch 7 is in position "I".
  • the guidance of the slider 411 by at least one of the two control levers 80a, 80b is maintained during all the operating phases 1/2/3/4/5 /.
  • the position of the two levers 80a, 80b is always controlled by the position of the nut 41 which controls the position of the movable contacts HT.
  • the illustrated actuator comprises a mechanical brake 11 consisting of a spring wound with turns 110.
  • This spring 110 acts on the tree 43 around which it is mounted.
  • the shaft 43 is a component of the gear 4 meshing with its pinion 430 directly with the toothed wheel 42.
  • the braking torque generated by the brake 11 is less than the engine torque given by the electric motor 3.
  • the brake 11 is in braking position as long as no external force is applied to one of the ends 110a of the spring 110.
  • the inner diameter of the turns 110 at the rest state of the spring is slightly smaller than the outside diameter of the shaft 43 or to that of a fitted intermediate ring 431 on the shaft 43 ( figure 4 ).
  • the support shaft 43 may thus be made by a one-piece one-piece shaft or by an assembly of a shaft 43 on which is fitted a ring 431 or several parts.
  • the ends 110a, 110b are each guided in a slot 211a, 211b made in the main support 21.
  • the main support 21 reacts to the braking force in such a way that the turns open and loosen.
  • the braking force is limited to a value corresponding to the balance between the force of the spring and the friction force between the latter and the intermediate ring 431 which is integral with the shaft 43.
  • the spring assembly around intermediate ring 431 and its ends 110a, 110b in the slots 211a, 211b of the support 21 provides a non-self-locking brake in both directions of rotation of the shaft 43.
  • a slider 84 driven in translation by the control lever 80a.
  • the rotating lever 80a moves the slider piece 84 in the direction b /.
  • One of the free ends 110a, 110b of the spring 110 is based on one of the slots 211a or 211b.
  • the free end concerned by the support depends on the direction of rotation of the motor.
  • the spring 110 is open at one of its ends and the braking force is limited to an equilibrium corresponding to the spring tension force and the friction force between the spring 110 in the rest state and the intermediate ring 431. .
  • the slide 84 is moved in the direction a / contrary to the direction b / and presses on the free end 110a of the spring 110 and thus moves in the slot 211a made in the support in which it is housed.
  • the other free end 110b is locked in another slot 211b also made in the support 21 and parallel to the slot 211a.
  • the diameter of the turns of the spring 110 then widens and the mechanical brake 11 is deactivated.
  • the displacement of the slider 84 in translation is controlled by that in rotation of the control lever 80a ( figure 5 ).
  • the actuator 1 comprises a second auxiliary switch 10.
  • the movable contact of the second auxiliary switch 10 is connected to the movable contact of the first auxiliary switch 7 via a third link 100.
  • the displacement of the movable contact of the switch 7 simultaneously causes the movement of that of the auxiliary switch 10.
  • the auxiliary switch 10 indicates the switching state O of the disconnector until the cursor 411 reaches the curved portion 801b of the pivoting lever 80b ( Figures 3A to 3B ). Just before the cursor 411 reaches the straight portion 800b, the moving contact of the auxiliary switch switches to the "intermediate" switching state and remains in this position during the tilting of the cursor 411 in the straight portions 800b and 800a ( figure 3C ). When the cursor 411 reaches the curved zone 801a, the moving contact of the auxiliary switch 10 switches simultaneously with that of the auxiliary switch 7 and thus indicates the switching state I of the disconnector ( 3D figures ).
  • the second rectilinear portion 802a, 802b of the tracks is in continuity with the curved portion 801a, 801b.
  • the length of this second rectilinear portion 802a, 802b allows the slider (411) sliding inside to stop without pivoting the levers 80a, 80b, once the power supply of the electric motor has been cut off by the auxiliary switch 7 in the switching position ( figure 3E ).
  • the rotating drive shaft 6 can cause one or more main contact (s) to mobile HT or MT.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Gear Transmission (AREA)
  • Braking Arrangements (AREA)
  • Pens And Brushes (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

The actuator has an auxiliary interrupter for breaking a power supply to an electric motor at an end of a stroke of a cursor (411). A control lever (80a) is pivoted about a pivot pin which is orthogonal to a worm shaft. The control lever provides a guide edge (800a), an arrangement of levers where the profiles of the guide edges enables the cursor to slide on the guide edges regardless of a position on the worm shaft, by causing the control levers to stop or pivot simultaneously. A simultaneous pivoting movement of the levers puts the auxiliary interrupter into a switching position.

Description

DOMAINE TECHNIQUE ET ART ANTÉRIEURTECHNICAL FIELD AND PRIOR ART

L'invention concerne le domaine des actionneurs du type comprenant un moteur électrique et un engrenage pour transmettre le mouvement du moteur à un arbre d'entraînement entre deux positions déterminées.The invention relates to the field of actuators of the type comprising an electric motor and a gear for transmitting the movement of the motor to a drive shaft between two determined positions.

Elle s'applique aux actionneurs d'interrupteurs, tels que les sectionneurs, et plus particulièrement aux sectionneurs de moyenne ou haute tension.It applies to switch actuators, such as disconnectors, and more particularly to medium or high voltage disconnectors.

Dans les sectionneurs à haute ou moyenne tension, il est connu d'utiliser, en tant qu'actionneur, un moteur électrique, un engrenage pour transmettre le mouvement du moteur à un arbre d'entraînement entre deux positions déterminées correspondant aux deux positions d'ouverture et de fermeture du contact principal mobile de l'interrupteur et enfin au moins un premier interrupteur auxiliaire pour couper l'alimentation du moteur une fois que le contact principal a atteint sa position de fermeture ou d'ouverture.In the high and medium voltage disconnectors, it is known to use, as an actuator, an electric motor, a gear for transmitting the movement of the motor to a drive shaft between two determined positions corresponding to the two positions of opening and closing of the movable main contact of the switch and finally at least a first auxiliary switch to cut the motor power once the main contact has reached its closed position or opening.

Il est connu également de synchroniser le basculement du contact mobile du premier interrupteur auxiliaire avec la position de fermeture du contact principal mobile de sectionneur.It is also known to synchronize the tilting of the moving contact of the first auxiliary switch with the closing position of the movable main contact of the disconnector.

Il est enfin connu de synchroniser le basculement du contact mobile du premier interrupteur auxiliaire avec le basculement d'un contact mobile d'un deuxième interrupteur auxiliaire qui sert à signaler l'état de commutation (I/O) du sectionneur.It is finally known to synchronize the tilting of the movable contact of the first auxiliary switch with the tilting of a movable contact of a second auxiliary switch which serves to signal the switching state (I / O) of the disconnector.

Ainsi, le document CH 424932 divulgue un actionneur d'interrupteur, comprenant un moteur électrique, une roué dentée 11 accouplée avec l'arbre de sortie du moteur et solidaire d'un système de vis sans fin 5,6 avec un écrou 6 formant curseur, qui met en rotation, par l'intermédiaire d'un levier à fourche 7, un arbre principal connecté à un contact de l'interrupteur, tel qu'un sectionneur. Le levier à fourche 7 est configuré de sorte à permettre une course libre à l'écrou 6 après la fin du mouvement de l'arbre principal. Sur cette course libre, l'alimentation du moteur est coupée et le moteur et l'écrou 6 du système de vis sans fin s'arrêtent. Un paquet de rondelle Belleville 20 formant ressort amortit le freinage de l'écrou 6. La vis sans fin 5 possède un dégagement qui permet le désengagement de l'écrou 6 à la fin de manoeuvre. Les rondelles Belleville 20 permettent le réengagement de l'écrou 6 dans la vis 5 lors de la rotation inverse. La butée de l'écrou ainsi réalisée engendre des forces importantes dans la broche filetée 5 du système de vis sans fin et dans le châssis 4. De plus, la zone de désengagement de l'écrou 6 et la vis sans fin sont soumises à une usure importante. Cela impose donc de redimensionner le mécanisme par rapport à sa fonction première requise, à savoir la mise en rotation de l'arbre principal. Ce document ne s'intéresse pas à la manière de commander des contacts d'interrupteurs auxiliaires sur une longue course.Thus, the document CH 424932 discloses a switch actuator, comprising an electric motor, a toothed wheel 11 coupled to the motor output shaft and secured to a worm system 5,6 with a slider nut 6, which rotates, by means of a fork lever 7, a main shaft connected to a contact of the switch, such as a disconnector. The fork lever 7 is configured to allow a free stroke to the nut 6 after the end of the movement of the main shaft. On this free stroke, the motor supply is cut off and the motor and the nut 6 of the auger system stop. A package Belleville spring washer 20 damps the braking of the nut 6. The worm 5 has a clearance that allows the disengagement of the nut 6 at the end of maneuvering. The Belleville washers 20 allow the reengagement of the nut 6 in the screw 5 during the reverse rotation. The abutment of the nut thus produced generates significant forces in the threaded spindle 5 of the worm system and in the frame 4. In addition, the zone of disengagement of the nut 6 and the worm are subjected to heavy wear. This therefore requires resizing the mechanism with respect to its primary function required, namely the rotation of the main shaft. This document is not interested in how to control auxiliary switch contacts on a long run.

Le document DE 1690093 , divulgue un perfectionnement de l'actionneur selon le brevet CH 424 932 , qui consiste à prévoir un interrupteur additionnel pour activer un frein électrique du moteur lors de la course libre (phase de fin de course du curseur 6). L'utilisation d'un tel frein électrique du moteur n'est pas une solution optimisée en termes de coût. Il est nécessaire de remédier aux contraintes générées par le courant de court-circuit important. En effet, un tel courant de court-circuit important augmente considérablement la charge sur les parties électriques (bobinages, interrupteurs,...) et les parties mécaniques (fixations, engrenages,...). Le document DE 1690093 résout ce problème avec une résistance reliée électriquement au frein en transformant l'énergie électrique résultant du freinage en chaleur. Cette solution est coûteuse : utilisation d'une résistance, gestion de la chaleur récupérée...The document DE 1690093 discloses an improvement of the actuator according to the patent CH 424 932 , which consists in providing an additional switch for activating an electric brake of the motor during the free stroke (end-of-stroke phase of the slider 6). The use of such an electric motor brake is not an optimized solution in terms of cost. It is necessary to remedy the constraints generated by the large short circuit current. Indeed, such a large short circuit current considerably increases the load on the electrical parts (coils, switches, ...) and the mechanical parts (fasteners, gears, ...). The document DE 1690093 solves this problem with a resistor electrically connected to the brake by transforming the electrical energy resulting from the braking into heat. This solution is expensive: use of a resistance, management of recovered heat ...

Le document EP 0455039 divulgue un actionneur d'interrupteur comprenant une broche rotative 1 qui déplace un écrou 2 formant curseur muni d'un axe 5 logé dans une fente 6 de forme adaptée pour mettre en rotation un arbre principal 4 solidaire d'un contact de l'interrupteur. Il est prévu un dispositif d'indication 12 comprenant une fente 13 et commandé par l'axe 5 en déplacement afin de pivoter. Le dispositif d'indication 12 peut être muni d'une section dentée 15 afin de mettre en rotation un pignon 16 et son arbre 17 avec lequel il est solidaire. La rotation de l'arbre 17 actionne l'interrupteur auxiliaire pour couper l'alimentation du moteur (non représenté) qui met en rotation la broche 1. La course de pivotement du dispositif d'indication 12 n'est pas suffisamment longue. L'utilisation d'un tel pignon 17 et du balancier 3 n'est pas une solution optimisée en termes de coût. En outre, ce document ne propose pas de solution pour freiner le mouvement en fin de course.The document EP 0455039 discloses a switch actuator comprising a rotating pin 1 which moves a nut 2 forming a slider provided with an axis 5 housed in a slot 6 of a shape adapted to rotate a main shaft 4 integral with a contact of the switch. There is provided an indication device 12 comprising a slot 13 and controlled by the axis 5 in displacement in order to pivot. The indicating device 12 may be provided with a toothed section 15 in order to rotate a pinion 16 and its shaft 17 with which it is integral. The rotation of the tree 17 actuates the auxiliary switch to turn off the power to the motor (not shown) which rotates pin 1. The pivoting stroke of the indicating device 12 is not long enough. The use of such a pinion 17 and the balance 3 is not a solution optimized in terms of cost. In addition, this document does not propose a solution to slow down the movement at the end of the race.

Le but de l'invention est de proposer un nouveau type d'actionneur électromécanique, en particulier pour les sectionneurs haute ou moyenne tension, qui soit moins coûteux et de fiabilité accrue par rapport à ceux actuellement existants.The object of the invention is to propose a new type of electromechanical actuator, in particular for high or medium voltage disconnectors, which is less expensive and of increased reliability compared to those currently existing.

EXPOSÉ DE L'INVENTIONSTATEMENT OF THE INVENTION

A cet effet, il est prévu un actionneur de type électromécanique, comprenant :

  • un moteur électrique,
  • un engrenage comportant une broche adaptée pour être mise en rotation par le moteur et un écrou en prise filetée autour de la broche et muni d'un pion de guidage et d'un axe formant curseur,
  • un levier à fourche solidaire d'un arbre d'entraînement qui s'étend orthogonalement à la broche et positionné pour loger le pion de guidage dans la fourche entre deux positions déterminées sur la broche afin de mettre en rotation l'arbre d'entraînement entre deux positions déterminées,
  • un premier interrupteur auxiliaire pour couper l'alimentation du moteur électrique en fin de course du curseur,
  • des moyens de transmission pour transmettre le mouvement du curseur en fin de course au premier interrupteur auxiliaire afin de le mettre en position de commutation, lesdits moyens de transmission comprenant un ensemble de deux leviers de commande reliés entre eux et dont l'un est relié à un contact mobile du premier interrupteur auxiliaire, chacun des leviers de commande étant pivotant autour d'un axe orthogonal à la broche et étant muni d'une piste, l'agencement des leviers et le profil de leurs pistes permettant au curseur de coulisser dans les pistes quelle que soit la position sur la broche, en faisant arrêter ou pivoter simultanément les leviers de commande, le pivotement simultané des leviers mettant en position de commutation l'interrupteur auxiliaire.
For this purpose, an actuator of the electromechanical type is provided, comprising:
  • an electric motor,
  • a gear having a spindle adapted to be rotated by the motor and a nut threadedly engaged about the spindle and provided with a guide pin and a slider axis,
  • a fork lever integral with a drive shaft which extends orthogonally to the spindle and positioned to receive the guide pin in the fork between two determined positions on the spindle in order to rotate the drive shaft between two specific positions,
  • a first auxiliary switch to cut off the power supply of the electric motor at the end of the cursor travel,
  • transmission means for transmitting the movement of the cursor at the end of the stroke to the first auxiliary switch to put it in the switching position, said transmission means comprising a set of two control levers interconnected and one of which is connected to a movable contact of the first auxiliary switch, each of the control levers being pivotable about an axis orthogonal to the spindle and being provided with a track, the arrangement of the levers and the profile of their tracks allowing the slider to slide in the tracks regardless of the position on the spindle, by simultaneously stopping or rotating the control levers, the simultaneous pivoting of the levers setting the auxiliary switch in the switched position.

On obtient ainsi un actionneur électromécanique à coût réduit d'une part, par la réduction du nombre et du poids des pièces utilisées constituant l'actionneur et d'autre part, par le remplacement de pièces, réalisées jusqu'à présent par techniques de fonderie, par des pièces réalisées à partir de tôles métalliques pliées.An electromechanical actuator is thus obtained at a reduced cost on the one hand, by reducing the number and weight of the parts used constituting the actuator and, on the other hand, by replacing parts, so far made by foundry techniques. , by pieces made from folded metal sheets.

Avantageusement, chaque piste de levier comporte une première partie rectiligne et une partie incurvée en continuité avec sa partie rectiligne, les longueurs respectives de la première partie rectiligne et de la partie incurvée permettant au curseur de coulisser dans les parties :

  • rectilignes alignées entre elles sans faire pivoter les leviers de commande lorsque l'arbre d'entraînement est entre les deux positions déterminées,
  • incurvées en faisant pivoter simultanément les leviers de commande lorsque l'arbre d'entraînement est dans une position immédiatement après l'une des deux positions déterminées.
Advantageously, each lever track comprises a first rectilinear part and a curved part in continuity with its rectilinear part, the respective lengths of the first rectilinear part and the curved part allowing the cursor to slide in the parts:
  • rectilinear lines aligned with each other without rotating the control levers when the shaft drive is between the two determined positions,
  • curved by simultaneously pivoting the control levers when the drive shaft is in a position immediately after one of two determined positions.

Avantageusement, chaque piste comprend une deuxième partie rectiligne en continuité avec la partie incurvée, la longueur de la deuxième partie rectiligne permettant au curseur coulissant à l'intérieur de s'arrêter sans pivotement des leviers, après que l'alimentation du moteur électrique ait été coupée par l'interrupteur auxiliaire en position de commutation.Advantageously, each track comprises a second rectilinear part in continuity with the curved part, the length of the second rectilinear part allowing the sliding slider inside to stop without pivoting the levers, after the power supply of the electric motor has been switched off by the auxiliary switch in the switching position.

Selon une variante, les deux pièces sont reliées entre elles par une première biellette. Les leviers de commande peuvent être reliés entre eux de manière à pivoter dans le même sens de rotation.According to a variant, the two parts are interconnected by a first link. The control levers can be connected to each other so as to pivot in the same direction of rotation.

Avantageusement encore, un des leviers de commande est relié au premier contact auxiliaire par une deuxième biellette.Advantageously, one of the control levers is connected to the first auxiliary contact by a second link.

Selon un mode de réalisation avantageux, deux cylindres s'étendent parallèlement à l'arbre d'entraînement et sont positionnés à une distance telle qu'ils forment chacun une butée du levier à fourche dans l'une des deux positions déterminées de l'arbre d'entraînement.According to an advantageous embodiment, two cylinders extend parallel to the drive shaft and are positioned at such a distance that they each form a stop of the fork lever in one of the two determined positions of the shaft. drive.

Les deux leviers de commande sont de préférence identiques.The two control levers are preferably identical.

Selon une variante avantageuse de l'invention, le levier de commande est relié à une pièce formant coulisseau, la liaison entre le levier et le coulisseau étant prévue de telle façon que, lorsque le levier est en position pivotée correspondant à une position du curseur au-delà des deux positions déterminées, le coulisseau en translation actionne un frein mécanique de l'engrenage et, lorsque le levier est en position non pivotée correspondant à une position du curseur entre les deux positions déterminées, le coulisseau en translation opposée relâche le frein mécanique.According to an advantageous variant of the invention, the control lever is connected to a piece forming a slider, the connection between the lever and the slider being provided in such a way that, when the lever is in the rotated position corresponding to a position of the slider beyond the two determined positions, the slider in translation actuates a mechanical brake of the gear and, when the lever is in position unrotated corresponding to a position of the cursor between the two determined positions, the slider in opposite translation releases the mechanical brake.

Les deux leviers pivotants ainsi agencés dans le cadre de l'invention, tournent autour d'un axe perpendiculaire sous l'action du curseur de l'écrou coulissant sur la broche. Le pivotement des leviers est bloqué durant le mouvement du (des) contact(s) principal (ux) de haute tension de l'interrupteur, tel qu'un sectionneur, qui est muni de l'actionneur selon l'invention. Par contre, les leviers tournent durant la fin de course du curseur. La course de pivotement des pièces est suffisamment importante pour pouvoir utiliser un interrupteur auxiliaire de coupure d'alimentation du moteur qui soit d'une précision usuelle : en d'autres termes, il n'est pas nécessaire d'avoir recours à un interrupteur auxiliaire de grande précision.The two pivoting levers thus arranged in the context of the invention rotate around a perpendicular axis under the action of the slider of the sliding nut on the spindle. The pivoting of the levers is blocked during the movement of the main contact (s) (ux) of high voltage switch, such as a disconnector, which is provided with the actuator according to the invention. On the other hand, the levers rotate during the end of the cursor's run. The pivoting stroke of the parts is large enough to be able to use an auxiliary switch of power supply of the engine which is of a usual precision: in other words, it is not necessary to resort to an auxiliary switch very precise.

Par rapport aux actionneurs de sectionneur haute tension de l'art antérieur, l'actionneur selon l'invention définit un dispositif de commande comprenant deux leviers auxiliaires, de préférence identiques, guidés en rotation selon deux axes perpendiculaires à la broche disposés de sorte que sur les deux fins de course du curseur, le rapport de transmission entre le déplacement linéaire du curseur et le déplacement rotatif des leviers soit élevé. Cela permet d'obtenir, malgré des coûts de production réduits, une grande précision de commutation de l'interrupteur auxiliaire et d'utiliser des tôles de métal pliées au lieu de pièces moulées pour l'embase, telle qu'une embase de pied, du support principal et du boitier de l'actionneur.Compared to the high voltage disconnector actuators of the prior art, the actuator according to the invention defines a control device comprising two auxiliary levers, preferably identical, guided in rotation along two axes perpendicular to the pin arranged so that on the two end positions of the slider, the ratio of transmission between the linear displacement of the slider and the rotary movement of the levers is high. This makes it possible to obtain, despite reduced production costs, high switching accuracy of the auxiliary switch and to use folded metal sheets instead of molded parts for the base, such as a foot plate, the main support and the actuator housing.

L'actionneur précédemment défini peut comprendre un bâti de l'actionneur ci-dessus, avec au moins un support principal sur lequel est monté en rotation l'arbre d'entraînement et une embase sur laquelle sont fixés le moteur et l'engrenage, le support principal et l'embase étant réalisés avantageusement à partir de tôles de métal pliées.The actuator previously defined may comprise a frame of the actuator above, with at least one main support on which is rotatably mounted the drive shaft and a base on which are fixed the motor and the gear, the main support and the base being made advantageously from folded metal sheets.

L'invention concerne enfin un interrupteur haute ou moyenne tension, comprenant un actionneur de type électromécanique décrit ci-dessus, dans lequel l'arbre d'entraînement est l'arbre d'entraînement du(es) contact(s) principal (aux) mobile(s) de l'interrupteur, les positions déterminées de l'arbre d'entraînement étant les positions d'ouverture et de fermeture du(es) contact(s) principal (aux).Finally, the invention relates to a high or medium voltage switch comprising an electromechanical type actuator described above, in which the drive shaft is the drive shaft of the main contact (s). movable (s) of the switch, the determined positions of the drive shaft being the open and closed positions of the (es) main contact (s) (aux).

BRÈVE DESCRIPTION DES DESSINSBRIEF DESCRIPTION OF THE DRAWINGS

La figure 1 est une vue en perspective d'un mode de réalisation de l'actionneur 1 selon l'invention.The figure 1 is a perspective view of an embodiment of the actuator 1 according to the invention.

La figure 2 est une vue en perspective de l'actionneur 1 selon la figure 1 sur laquelle ne sont pas montrés les interrupteurs auxiliaires, une partie du bâti et les moyens de transmission conformes à l'invention.The figure 2 is a perspective view of the actuator 1 according to the figure 1 on which the auxiliary switches are not shown, some of the frame and the transmission means according to the invention.

Les figures 3A à 3E montrent, en vue partielle, les différentes étapes consécutives de fonctionnement de l'actionneur 1 selon la figure 1.The FIGS. 3A to 3E show, in partial view, the various consecutive steps of operation of the actuator 1 according to the figure 1 .

La figure 4 est une vue partielle d'un actionneur 1 selon la figure 1 montrant l'implantation d'un frein mécanique conforme à l'invention.The figure 4 is a partial view of an actuator 1 according to the figure 1 showing the implantation of a mechanical brake according to the invention.

La figure 5 est une vue schématique d'un frein mécanique conforme à l'invention.The figure 5 is a schematic view of a mechanical brake according to the invention.

EXPOSÉ DÉTAILLÉ DE MODES DE RÉALISATION PARTICULIERSDETAILED PRESENTATION OF PARTICULAR EMBODIMENTS

L'actionneur représenté 1 est un actionneur de sectionneur de terre haute tension.The illustrated actuator 1 is a high voltage earthing switch actuator.

L'actionneur 1 comprend tout d'abord un bâti 2 comportant au moins une embase 20 et un support principal 21 réalisés avantageusement en tôles de métal pliées. Un moteur électrique 3 ainsi qu'un engrenage 4 parallèles entre eux sont fixés à l'embase 20. Un arbre d'entraînement 6 orthogonal au moteur électrique 3 est monté en rotation dans le support principal 21 et embase 20.The actuator 1 comprises firstly a frame 2 comprising at least one base 20 and a main support 21 advantageously made of folded metal sheets. An electric motor 3 and a gear 4 parallel to each other are fixed to the base 20. A drive shaft 6 orthogonal to the electric motor 3 is rotatably mounted in the main support 21 and base 20.

L'engrenage 4 comprend un moteur 3 avec un arbre de sortie 30, des roues dentées intermédiaires, et une roue denté 42. La roue dentée 42 est solidaire d'une broche 40 en prise filetée avec un écrou 41 muni d'un pion de guidage et d'entraînement 410 et d'un axe formant curseur 411 (figure 2).The gear 4 comprises a motor 3 with an output shaft 30, intermediate gear wheels, and a toothed wheel 42. The toothed wheel 42 is secured to a pin 40 in threaded engagement with a nut 41 provided with a pin of guidance and drive 410 and a slider axis 411 ( figure 2 ).

Un levier 5 à fourche 50 solidaire d'un arbre d'entraînement 6. Cet arbre s'étend orthogonalement à la broche 40. Le levier est positionné pour loger le pion de guidage 410 dans la fourche 50 entre deux positions déterminées sur la broche 40 pour mettre en rotation l'arbre d'entraînement 6 entre deux positions déterminées. Autrement dit, le levier 5 à fourche 50 est mis en rotation par le pion de guidage 410 ou, en coopération avec les cylindres 9a, 9b, bloqué dans l'une des deux positions déterminées. Le levier 5 à fourche 50 est solidaire d'un arbre d'entraînement 6 auquel est relié le contact principal mobile du sectionneur de terre (non représenté).A fork lever 50 secured to a drive shaft 6. This shaft extends orthogonally to the pin 40. The lever is positioned to accommodate the guide pin 410 in the fork 50 between two determined positions on the pin 40 to rotate the drive shaft 6 between two specific positions. In other words, the lever 5 fork 50 is rotated by the guide pin 410 or, in cooperation with the cylinders 9a, 9b, locked in one of two specific positions. The fork lever 50 is integral with a drive shaft 6 to which is connected the moving main contact of the earthing switch (not shown).

Dans un mode de réalisation avantageux, la roué dentée 42 est équipée d'un dispositif limiteur de couple (non représenté) qui limite le couple transmis du moteur 3 à l'arbre d'entraînement 6. On s'assure ainsi que la position du levier 5 à fourche 50 et du curseur 411, connecté aux moyens de commande, d'indication et signalisation, correspond toujours à celle du contact principal du sectionneur, même en cas de blocage.In an advantageous embodiment, the toothed wheel 42 is equipped with a torque limiting device (not shown) which limits the torque transmitted from the motor 3 to the drive shaft 6. This ensures that the position of the fork lever 50 and the cursor 411, connected to the control means, indication and signaling, always corresponds to that of the main contact of the disconnector, even in case of blockage.

Dans un mode de réalisation avantageux de l'invention, l'arbre 43, solidaire de la roue dentée 430 est équipé d'un frein mécanique 11 constitué d'un ressort enroulé à spires 110 comme détaillé par la suite.In an advantageous embodiment of the invention, the shaft 43 secured to the toothed wheel 430 is equipped with a mechanical brake 11 consisting of a winding spring with turns 110 as detailed below.

Selon l'invention, l'actionneur 1 comprend en outre un premier interrupteur auxiliaire 7 pour couper l'alimentation du moteur électrique en fin de course du curseur 411. A cet effet, des moyens de transmission 8 pour transmettre le mouvement du curseur 411 en fin de course au premier interrupteur auxiliaire 7 sont prévus. Les moyens de transmission 8 comprennent un ensemble de deux leviers de commande 80a, 80b reliées entre eux et dont l'un 80b est relié à un contact mobile du premier interrupteur auxiliaire 7. Chacune des leviers 80a, 80b est pivotant autour d'un axe 81a, 81b orthogonal à la broche 40 et est muni d'une piste 800a, 801a, 802a et 800b ,801b et 802b adaptée pour recevoir par coulissement le curseur 411 quelle que soit sa position sur la broche 40.According to the invention, the actuator 1 further comprises a first auxiliary switch 7 to cut the power supply of the electric motor at the end of the stroke of the cursor 411. For this purpose, transmission means 8 for transmitting the movement of the cursor 411 in limit switch to the first auxiliary switch 7 are planned. The transmission means 8 comprise a set of two control levers 80a, 80b interconnected and one of which 80b is connected to a movable contact of the first auxiliary switch 7. Each of the levers 80a, 80b is pivotable about an axis 81a, 81b orthogonal to the spindle 40 and is provided with a track 800a, 801a, 802a and 800b, 801b and 802b adapted to slidably receive the slider 411 regardless of its position on the spindle 40.

Chaque piste comporte une première partie rectiligne 800a, 800b, une partie incurvée 801a, 801b et 800b en continuité avec sa partie rectiligne 800a de sorte que, lorsque le curseur 411 est entre ses deux positions, il coulisse successivement dans les parties rectilignes 800b, 800a en regard l'une de l'autre et alignés dans l'axe de la broche 40 puis dans une des parties incurvée 801a, 801b de l'une des pistes.Each track has a first straight portion 800a, 800b, a curved portion 801a, 801b and 800b in continuity with its straight portion 800a so that, when the slider 411 is between its two positions, it slides successively in the straight portions 800b, 800a facing each other and aligned in the axis of the pin 40 and in one of the curved portions 801a, 801b of one of the tracks.

Le coulissement du curseur 411 dans la partie incurvée 801a ou 801b provoque le pivotement du levier de commande 80a ou 80b qui en est muni et simultanément le pivotement de l'autre levier 80b ou 80a par une première biellette 82, et le déplacement du contact mobile de l'interrupteur auxiliaire 7 par une deuxième biellette 83.The sliding of the slider 411 in the curved portion 801a or 801b causes the pivoting of the control lever 80a or 80b which is provided and simultaneously the pivoting of the other lever 80b or 80a by a first link 82, and the displacement of the moving contact. of the auxiliary switch 7 by a second link 83.

Selon une variante avantageuse, deux cylindres 9a, 9b s'étendent parallèlement à l'arbre d'entraînement 6 et sont positionnés à une distance telle qu'ils forment chacun une butée du levier 5 à fourche 50 dans l'une des deux positions déterminées de l'arbre d'entraînement 6.According to an advantageous variant, two cylinders 9a, 9b extend parallel to the drive shaft 6 and are positioned at a distance such that they each form a stop of the fork lever 50 in one of the two predetermined positions. of the drive shaft 6.

Avantageusement, les deux leviers de commande 80a, 80b sont identiques.Advantageously, the two control levers 80a, 80b are identical.

Selon le mode de réalisation illustré, l'actionneur 1 comprend un deuxième interrupteur auxiliaire 10, dont un contact mobile est relié au contact mobile du premier interrupteur auxiliaire 7 par une troisième biellette 100 de sorte que le déplacement de l'interrupteur auxiliaire 7 provoque simultanément le déplacement de l'autre interrupteur auxiliaire 10.According to the illustrated embodiment, the actuator 1 comprises a second auxiliary switch 10, a movable contact is connected to the movable contact of the first auxiliary switch 7 by a third link 100 so that the movement of the auxiliary switch 7 causes simultaneously the displacement of the other auxiliary switch 10.

La position du curseur 411 est détectée par les deux leviers de commande 80a, 80b agencés en parallèle au dessus de la broche 40. Chaque levier 80a, 80b est adapté pour pivoter autour d'un axe 81a, 81b orthogonal à la broche 40 et agencé de part et d'autre de l'actionneur 1. La première biellette 82 qui relie les deux leviers 80a, 80b entre eux permet de les faire pivoter simultanément dans la même direction.The position of the cursor 411 is detected by the two control levers 80a, 80b arranged in parallel above the pin 40. Each lever 80a, 80b is adapted to pivot about an axis 81a, 81b orthogonal to the pin 40 and arranged on either side of the actuator 1. The first rod 82 which connects the two levers 80a, 80b between them allows them to rotate simultaneously in the same direction.

Le curseur 411 engagé dans les pistes 800a, 801a, 802a, 800b, 801b et 802b (guidage forcé) fait ainsi pivoter les leviers 80a, 80b en fonction de sa position sur la broche 40.The cursor 411 engaged in the tracks 800a, 801a, 802a, 800b, 801b and 802b (forced guidance) thus pivots the levers 80a, 80b according to its position on the spindle 40.

Tel qu'illustré, le levier 5 à fourche 50 est avantageusement réalisé à partir de deux plaques métalliques identiques 500 parallèles entre elles et fixées l'une à l'autre par plusieurs goupilles 501 et fixées rigidement à l'arbre d'entraînement 6. La distance entre les deux plaques métalliques 500 est légèrement supérieure à la hauteur de l'écrou 41. Chaque plaque 500 comprend une fente droite 500a et en continuité des bords inclinés 500b et 500c. La largeur de la fente 500a est légèrement supérieure au diamètre du pion de guidage 410.As illustrated, the lever 5 fork 50 is advantageously made from two identical metal plates 500 parallel to each other and fixed to one another by several pins 501 and rigidly fixed to the drive shaft 6. The distance between the two metal plates 500 is slightly greater than the height of the nut 41. Each plate 500 comprises a straight slot 500a and in continuity with the inclined edges 500b and 500c. The width the slot 500a is slightly larger than the diameter of the guide pin 410.

Le mouvement de rotation de la broche 40 est transformé en mouvement de translation de l'écrou 41 et des pions de guidage 410, ces derniers étant guidés par les rainures 210 (parallèle à la broche 40) pratiquées dans l'embase 20 et le support 21. La fente 500a transforme le mouvement de translation de l'écrou 41 par l'intermédiaire du pion 410 en un mouvement de rotation de l'arbre d'entraînement 6. Les bords inclinés 500b, 500c interrompent la transmission du mouvement si l'une des positions déterminées est atteinte et, en coopération avec les cylindre 9a et 9b, bloquent l'arbre d'entraînement 6 dans cette position.The rotational movement of the spindle 40 is transformed into translational movement of the nut 41 and guide pins 410, the latter being guided by the grooves 210 (parallel to the spindle 40) formed in the base 20 and the support 21. The slot 500a converts the translation movement of the nut 41 through the pin 410 in a rotational movement of the drive shaft 6. The inclined edges 500b, 500c interrupt the transmission of the movement if the one of the determined positions is reached and, in cooperation with the cylinders 9a and 9b, block the drive shaft 6 in this position.

En fonction de la phase de fonctionnement de l'actionneur 1, le levier 5 est mis en rotation par les pions de guidage 410 ou bloqué par l'une des butées 9a, 9b à l'une de ses extrémités et par les pions de guidage 410 en interaction avec les bords incliné 500b, 500c à l'autre de ses extrémités. L'angle de rotation du levier 5 à fourche 50 dépend de la longueur et de la position radiale des fentes droites 500a par rapport à la broche 40. Dans l'exemple de réalisation illustré, l'angle est de 90°.Depending on the operating phase of the actuator 1, the lever 5 is rotated by the guide pins 410 or blocked by one of the stops 9a, 9b at one of its ends and by the guiding pins 410 interacting with the inclined edges 500b, 500c at the other of its ends. The angle of rotation of the fork lever 50 depends on the length and the radial position of the straight slots 500a with respect to the spindle 40. In the exemplary embodiment illustrated, the angle is 90 °.

Les phases de fonctionnement de l'actionneur 1 et du sectionneur associé peuvent être distinguées comme suait :

  1. 1) Fin de position d'ouverture "O" (illustrée par la figure 3A),
  2. 2) Phase de début de course avec le moteur 3 en rotation et l'arbre d'entraînement 6 à l'arrêt dans la position d'ouverture "0" (illustrée par la figure 3B),
  3. 3) Phases de déplacement avec rotation de l'arbre d'entraînement 6 et déplacement associé du(es) contact(s) principal(aux) mobile(s) de haute tension HT (illustrée par la figure 3C),
  4. 4) Phase de fin de course avec le moteur 3 en rotation et l'arbre d'entraînement 6 à l'arrêt dans la position de fermeture "I" (illustrée par la figure 3D),
  5. 5) Fin de position de fermeture "I". (illustrée par la figure 3E).
The operating phases of the actuator 1 and the associated disconnector can be distinguished as sweat:
  1. 1) End of open position "O" (illustrated by the figure 3A )
  2. 2) Start of stroke phase with the motor 3 in rotation and the drive shaft 6 at the stop in the open position "0" (illustrated by the figure 3B )
  3. 3) Displacement phases with rotation of the drive shaft 6 and associated displacement of the main movable contact (s) with high voltage HT (illustrated by FIG. figure 3C )
  4. 4) End-of-stroke phase with the motor 3 rotating and the drive shaft 6 stopped in the closed position "I" (illustrated by the 3D figure )
  5. 5) End of closing position "I". (illustrated by figure 3E ).

Les phases de fonctionnement ci-dessus peuvent être établies dans les deux directions de « O » à « I » et de « I » à « O ».The above operating phases can be set in both directions from "O" to "I" and from "I" to "O".

Phase 1) : Le levier 5 à fourche 50 est bloqué par la butée 9b et par les pions de guidage 410. Les leviers de commande 80a, 80b et l'interrupteur auxiliaire 7 sont en position « O ». Le moteur électrique 3 n'est pas alimenté. Le levier 5 est bloqué par la butée 9b et par les pions de guidage 410 en contact avec les bords inclinés 500c.Phase 1): The fork lever 50 is blocked by the stop 9b and by the guide pins 410. The control levers 80a, 80b and the auxiliary switch 7 are in position "O". The electric motor 3 is not powered. The lever 5 is blocked by the stop 9b and the guide pins 410 in contact with the inclined edges 500c.

Phase 2) : Le moteur électrique 3 est mis en tension et déplace alors l'écrou 41 sur la broche 40 vers la position "I". Le levier 5 est bloqué par la butée 9b et le pion de guidage 410 qui se déplace le long des bords inclinés 500c. L'arbre d'entraînement 6 est immobile et le contact haute tension solidaire de l'arbre 6 reste en position ouverte. L'écrou 41 fait pivoter le levier de commande 80b en direction d'une position intermédiaire. Le levier de commande 80a pivote alors simultanément dans la même direction grâce à la liaison directe réalisée avec la première biellette 82. Au cours de cette phase 2), le curseur 411 se déplace dans la partie rectiligne 802b, et puis dans la partie incurvée 801b, les leviers de commande 80a, 80b tournent dans le sens horaire. L'interrupteur auxiliaire 7 est actionné vers sa position intermédiaire. Le frein mécanique 11 est alors relâché, comme il sera décrit ci-après.Phase 2): The electric motor 3 is put in tension and then moves the nut 41 on the pin 40 to the "I" position. The lever 5 is blocked by the stop 9b and the guide pin 410 which moves along the inclined edges 500c. The drive shaft 6 is stationary and the high voltage contact secured to the shaft 6 remains in the open position. The nut 41 rotates the control lever 80b towards an intermediate position. The control lever 80a then pivots simultaneously in the same direction thanks to the direct connection made with the first rod 82. During this phase 2), the cursor 411 moves in the rectilinear part 802b, and then in the curved part 801b, the control levers 80a, 80b turn clockwise. The auxiliary switch 7 is actuated towards its intermediate position. The mechanical brake 11 is then released, as will be described below.

Phase 3) : Le curseur 411 a atteint la partie droite 800b et les pions de guidage 410 ont atteint dans le même temps les fentes droites 500a du levier 5. Les pions de guidage 410 glissent dans la fente droite 500a du levier 5 à fourche. Ce dernier est alors tourné, ce qui tourne également l'arbre d'entraînement 6. Le contact principal mobile de haute tension HT est alors déplacé vers la position de fermeture. Les leviers de commande 80a, 80b restent en position intermédiaire, c'est à dire avec les pistes 800a, 800b en regard l'une de l'autre et alignés au dessus de la broche 40, et le curseur 411 passe de la piste 800b de l'un des leviers 80b à la piste 800a de l'autre des leviers 80a. L'interrupteur auxiliaire 7 reste dans sa position intermédiaire.Phase 3): The cursor 411 has reached the right part 800b and the guide pins 410 have reached at the same time the straight slots 500a of the lever 5. The guide pins 410 slide in the right slot 500a of the fork lever 5. The latter is then rotated, which also turns the drive shaft 6. The moving main contact HT high voltage is then moved to the closed position. The control levers 80a, 80b remain in the intermediate position, that is with the tracks 800a, 800b facing each other and aligned above the pin 40, and the cursor 411 passes from the track 800b from one of the levers 80b to the track 800a of the other levers 80a. The auxiliary switch 7 remains in its intermediate position.

Phase 4) : Le levier 5 à fourche 50 est bloqué par la butée 9b et les pions de guidage 410 qui glissent contre les bords inclinés 500b. Le contact principal HT entraîné par l'arbre d'entraînement 6 a atteint sa position de fermeture. Dans le même temps, le curseur 411 entre dans la partie incurvée 801a de la piste 800a et le levier 80a se déplace vers la position "I". Le levier 80b tourne dans le même sens par la liaison réalisée avec la première biellette 82. Les contacts mobiles du premier des interrupteurs auxiliaires 7, sont alors déplacé par la deuxième biellette 83 et arrivent dans la position "I" L'alimentation du moteur 3 est alors coupée et le frein mécanique 11 est actionné comme décrit ci-après pour freiner et stopper la rotation de l'arbre 43, et donc celle de l'engrenage 4 et du moteur 30. Le curseur 411 est arrêté dans la piste 802a.Phase 4): The fork lever 50 is blocked by the stopper 9b and the guide pins 410 which slide against the inclined edges 500b. The main contact HT driven by the drive shaft 6 has reached its closed position. At the same time, the cursor 411 enters the curved portion 801a of the track 800a and the lever 80a moves to the position "I". The lever 80b rotates in the same direction by the connection made with the first rod 82. The movable contacts of the first of the auxiliary switches 7, are then moved by the second link 83 and arrive in the "I" position. The power supply of the motor 3 is then cut and the mechanical brake 11 is actuated as described below to brake and stop the rotation of the shaft 43, and therefore that of the gear 4 and the motor 30. The cursor 411 is stopped in the track 802a.

Phase 5) : Le moteur 3 et l'engrenage 4 sont arrêtés complètement. La position finale est atteinte. Le levier 5 à fourche 50 est bloqué par la butée 9a et par les pions de guidage 410 qui s'engagent aux bords inclinés 500b. Dans cette phase 5), le curseur 411 est engagé dans la partie 802a rectiligne de la piste à proximité de l'axe de pivot 81a. Pendant l'engagement du curseur 411 dans la partie incurvée 802a, le frein mécanique 11 est actionné, l'interrupteur auxiliaire 7 est en position « I ».Phase 5): The motor 3 and the gear 4 are stopped completely. The final position is reached. Fork lever 50 is blocked by stopper 9a and guide pins 410 which engage with inclined edges 500b. In this phase 5), the cursor 411 is engaged in the rectilinear portion 802a of the track near the pivot axis 81a. During the engagement of the slider 411 in the curved portion 802a, the mechanical brake 11 is actuated, the auxiliary switch 7 is in position "I".

Le guidage du curseur 411 par au moins un des deux leviers de commande 80a, 80b est maintenu pendant toutes les phases de fonctionnement 1/2/3/4/5/. De plus, du fait de la liaison entre les deux leviers 80a, 80b par la biellette 82, la position des deux leviers 80a, 80b est toujours commandée par la position de l'écrou 41 qui commande la position des contacts mobiles HT.The guidance of the slider 411 by at least one of the two control levers 80a, 80b is maintained during all the operating phases 1/2/3/4/5 /. In addition, because of the connection between the two levers 80a, 80b by the link 82, the position of the two levers 80a, 80b is always controlled by the position of the nut 41 which controls the position of the movable contacts HT.

Comme mentionné ci-dessus, l'actionneur illustré comprend un frein mécanique 11 constitué d'un ressort enroulé à spires 110. Ce ressort 110 agit sur l'arbre 43 autour duquel il est monté. L'arbre 43 est un composant de l'engrenage 4 engrenant par son pignon 430 directement avec la roue dentée 42. Le couple de freinage généré par le frein 11 est inférieur au couple moteur donné par le moteur électrique 3. Le frein 11 est en position de freinage tant qu'aucune force extérieure n'est appliquée sur l'une des extrémités 110a du ressort 110. Le diamètre interne des spires 110 à l'état de repos du ressort est légèrement inférieur au diamètre externe de l'arbre 43 ou à celui d'une bague intermédiaire emmanchée 431 sur l'arbre 43 (figure 4). L'arbre support 43 peut être ainsi soit réalisé par un arbre monobloc en une seule pièce soit par un ensemble d'un arbre 43 sur lequel est emmanché une bague 431 ou plusieurs pièces.As mentioned above, the illustrated actuator comprises a mechanical brake 11 consisting of a spring wound with turns 110. This spring 110 acts on the tree 43 around which it is mounted. The shaft 43 is a component of the gear 4 meshing with its pinion 430 directly with the toothed wheel 42. The braking torque generated by the brake 11 is less than the engine torque given by the electric motor 3. The brake 11 is in braking position as long as no external force is applied to one of the ends 110a of the spring 110. The inner diameter of the turns 110 at the rest state of the spring is slightly smaller than the outside diameter of the shaft 43 or to that of a fitted intermediate ring 431 on the shaft 43 ( figure 4 ). The support shaft 43 may thus be made by a one-piece one-piece shaft or by an assembly of a shaft 43 on which is fitted a ring 431 or several parts.

Dans le mode de réalisation illustré, les extrémités 110a, 110b sont guidées chacune dans une fente 211a, 211b pratiquée dans le support principal 21.In the illustrated embodiment, the ends 110a, 110b are each guided in a slot 211a, 211b made in the main support 21.

Le support principal 21 réagit à la force de freinage d'une manière telle que les spires s'ouvrent et se desserrent. Ainsi, la force de freinage est limitée à une valeur correspondant à l'équilibre entre la force du ressort et la force de friction entre celui-ci et la bague intermédiaire 431 qui est solidaire à l'arbre 43. Le montage du ressort autour de bague intermédiaire 431 et de ses extrémités 110a, 110b dans les fentes 211a, 211b du support 21 permet d'obtenir un frein non autobloquant dans les deux sens de rotation de l'arbre 43.The main support 21 reacts to the braking force in such a way that the turns open and loosen. Thus, the braking force is limited to a value corresponding to the balance between the force of the spring and the friction force between the latter and the intermediate ring 431 which is integral with the shaft 43. The spring assembly around intermediate ring 431 and its ends 110a, 110b in the slots 211a, 211b of the support 21 provides a non-self-locking brake in both directions of rotation of the shaft 43.

Pour actionner le frein 11, il est prévu un coulisseau 84 entraîné en translation par le levier de commande 80a. Ainsi, dans la phase 4 lorsque le curseur 411 atteint la fin de course dans la partie incurvée 801a de la piste, le levier 80a en rotation déplace la pièce formant coulisseau 84 dans le sens b/. Une des extrémités libres 110a, 110b du ressort 110 s'appuie sur l'une des fentes 211a ou 211b. L'extrémité libre concernée par la mise en appui dépend du sens de rotation du moteur. En conséquence le ressort 110 est ouvert à une de ses extrémités et la force de freinage est limité à un équilibre correspondant à la force de tension du ressort et la force de frottement entre le ressort 110 à l'état de repos et la bague intermédiaire 431.To actuate the brake 11, there is provided a slider 84 driven in translation by the control lever 80a. Thus, in phase 4 when the slider 411 reaches the end of travel in the curved portion 801a of the track, the rotating lever 80a moves the slider piece 84 in the direction b /. One of the free ends 110a, 110b of the spring 110 is based on one of the slots 211a or 211b. The free end concerned by the support depends on the direction of rotation of the motor. As a result, the spring 110 is open at one of its ends and the braking force is limited to an equilibrium corresponding to the spring tension force and the friction force between the spring 110 in the rest state and the intermediate ring 431. .

Pour désactiver le frein 11 dans la phase 2, lorsque le curseur 411 se déplace dans la piste 801a en direction de la piste 800a, le coulisseau 84 est déplacé dans le sens a/ contraire au sens b/ et appuie sur l'extrémité libre 110a du ressort 110 et la déplace ainsi dans la fente 211a pratiquée dans le support dans laquelle elle est logée. L'autre extrémité libre 110b est bloquée dans une autre fente 211b également pratiquée dans le support 21 et parallèle à la fente 211a. Le diamètre des spires du ressort 110 s'élargit alors et le frein mécanique 11 est désactivé. Le déplacement du coulisseau 84 en translation est commandé par celui en rotation du levier de commande 80a (figure 5).To deactivate the brake 11 in the phase 2, when the cursor 411 moves in the track 801a towards the track 800a, the slide 84 is moved in the direction a / contrary to the direction b / and presses on the free end 110a of the spring 110 and thus moves in the slot 211a made in the support in which it is housed. The other free end 110b is locked in another slot 211b also made in the support 21 and parallel to the slot 211a. The diameter of the turns of the spring 110 then widens and the mechanical brake 11 is deactivated. The displacement of the slider 84 in translation is controlled by that in rotation of the control lever 80a ( figure 5 ).

La liaison entre les deux leviers 80a et 80b par la biellette 82 et la liaison entre le coulisseau 84 et le levier 80a sont tels que :

  • le coulisseau 84 est déplacé dans le sens a/ contraire au sens b/ et le frein est activé si le curseur 411 s'approche d'une des deux positions finales et se trouve dans les parties incurvées 801a, 801b, c'est-à-dire au-delà des deux positions déterminées de l'arbre d'entraînement 6,
  • le coulisseau 84 est déplacé dans le sens a/ contraire au sens b/ et le frein est désactivé si le curseur se trouve dans l'une des pistes rectilignes 800a ou 800b, c'est-à-dire entre les deux positions déterminées de l'arbre d'entraînement 6.
The link between the two levers 80a and 80b by the rod 82 and the connection between the slide 84 and the lever 80a are such that:
  • the slider 84 is moved in the direction a / opposite to the direction b / and the brake is activated if the slider 411 approaches one of the two end positions and is in the curved parts 801a, 801b, that is to say -describe beyond the two determined positions of the drive shaft 6,
  • the slider 84 is moved in the direction a / opposite to the direction b / and the brake is deactivated if the slider is in one of the rectilinear tracks 800a or 800b, that is to say between the two determined positions of the drive shaft 6.

L'actionneur 1 selon le mode de réalisation illustré comprend un deuxième interrupteur auxiliaire 10. Le contact mobile du deuxième interrupteur auxiliaire 10 est relié au contact mobile du premier interrupteur auxiliaire 7 par l'intermédiaire d'une troisième biellette 100. Ainsi, le déplacement du contact mobile de l'interrupteur 7 provoque simultanément le déplacement de celui de l'interrupteur auxiliaire 10.The actuator 1 according to the illustrated embodiment comprises a second auxiliary switch 10. The movable contact of the second auxiliary switch 10 is connected to the movable contact of the first auxiliary switch 7 via a third link 100. Thus, the displacement of the movable contact of the switch 7 simultaneously causes the movement of that of the auxiliary switch 10.

Plus exactement, lorsque l'appareil qui est muni de l'actionneur 1 selon l'invention est un sectionneur haute ou moyenne tension, l'interrupteur auxiliaire 10 indique l'état de commutation O du sectionneur jusqu'à ce que le curseur 411 atteigne la partie incurvée 801b du levier pivotant 80b (figures 3A à 3B). Juste avant que le curseur 411 atteigne la partie rectiligne 800b, le contact mobile de l'interrupteur auxiliaire bascule dans l'état de commutation "intermédiaire" et reste dans cette position pendant le basculement du curseur 411 dans les parties rectiligne 800b et 800a (figure 3C). Lorsque le curseur 411 atteint la zone incurvée 801a le contact mobile de l'interrupteur auxiliaire 10 bascule simultanément avec celui de l'interrupteur auxiliaire 7 et indique donc l'état de commutation I du sectionneur (figures 3D).More exactly, when the apparatus which is equipped with the actuator 1 according to the invention is a high or medium voltage disconnector, the auxiliary switch 10 indicates the switching state O of the disconnector until the cursor 411 reaches the curved portion 801b of the pivoting lever 80b ( Figures 3A to 3B ). Just before the cursor 411 reaches the straight portion 800b, the moving contact of the auxiliary switch switches to the "intermediate" switching state and remains in this position during the tilting of the cursor 411 in the straight portions 800b and 800a ( figure 3C ). When the cursor 411 reaches the curved zone 801a, the moving contact of the auxiliary switch 10 switches simultaneously with that of the auxiliary switch 7 and thus indicates the switching state I of the disconnector ( 3D figures ).

La deuxième partie rectiligne 802a, 802b des pistes est en continuité avec la partie incurvée 801a, 801b. La longueur de cette deuxième partie rectiligne 802a, 802b permet au curseur (411) coulissant à l'intérieur de s'arrêter sans pivotement des leviers 80a, 80b, une fois que l'alimentation du moteur électrique a été coupée par l'interrupteur auxiliaire 7 en position de commutation (figure 3E).The second rectilinear portion 802a, 802b of the tracks is in continuity with the curved portion 801a, 801b. The length of this second rectilinear portion 802a, 802b allows the slider (411) sliding inside to stop without pivoting the levers 80a, 80b, once the power supply of the electric motor has been cut off by the auxiliary switch 7 in the switching position ( figure 3E ).

L'actionneur qui vient d'être décrit s'applique particulièrement à la commande des sectionneurs haute ou moyenne tension : l'arbre d'entraînement 6 en rotation peut entraîner un ou des contact(s) principal (aux) mobiles HT ou MT.The actuator which has just been described is particularly applicable to the control of high or medium voltage disconnectors: the rotating drive shaft 6 can cause one or more main contact (s) to mobile HT or MT.

Claims (11)

Actionneur (1) de type électromécanique, comprenant : - un moteur électrique (3), - un engrenage (4) comportant une broche (40) adaptée pour être mise en rotation par le moteur (3) et un écrou (41) en prise filetée autour de la broche (40) et muni d'un pion de guidage (410) et d'un axe formant curseur (411), - un levier (5) à fourche (50) solidaire d'un arbre d'entraînement (6) qui s'étend orthogonalement à la broche (40) et positionné pour loger le pion de guidage dans la fourche entre deux positions déterminées sur la broche afin de mettre en rotation l'arbre d'entraînement entre deux positions déterminées (I et O), - un premier interrupteur auxiliaire (7) pour couper l'alimentation du moteur électrique (3) en fin de course du curseur (411), - des moyens de transmission (8) pour transmettre le mouvement du curseur (411) en fin de course au premier interrupteur auxiliaire (7) afin de le mettre en position de commutation, lesdits moyens de transmission comprenant un ensemble de deux leviers de commande (80a,80b) reliés entre eux et dont l'un (80b) est relié à un contact mobile du premier interrupteur auxiliaire (7), chacun des leviers de commande (80a,80b) étant pivotant autour d'un axe orthogonal (81a,81b) à la broche et étant muni d'une piste (800a, 800b, 801a, 801b), l'agencement des leviers et le profil de leurs pistes permettant au curseur (411) de coulisser dans les pistes (800, 801a, 801b), quelle que soit la position sur la broche, en faisant arrêter ou pivoter simultanément les leviers de commande (80a, 80b), le pivotement simultané des leviers (80a, 80b) mettant en position de commutation l'interrupteur auxiliaire (7). Actuator (1) of electromechanical type, comprising: an electric motor (3), a gear (4) comprising a spindle (40) adapted to be rotated by the motor (3) and a nut (41) threadedly engaged around the spindle (40) and provided with a guiding pin (410). ) and a slider axis (411), a lever (5) with a fork (50) integral with a drive shaft (6) which extends orthogonally to the spindle (40) and positioned for accommodating the guide pin in the fork between two determined positions on the spindle in order to rotate the drive shaft between two determined positions (I and O), a first auxiliary switch (7) for disconnecting the power supply of the electric motor (3) at the end of travel of the cursor (411), transmission means (8) for transmitting the movement of the cursor (411) at the end of travel to the first auxiliary switch (7) in order to put it in the switching position, said transmission means comprising a set of two control levers ( 80a, 80b), one of which (80b) is connected to a movable contact of the first auxiliary switch (7), each of the control levers (80a, 80b) being pivotable about an orthogonal axis (81a, 81b) on the spindle and being provided with a track (800a, 800b, 801a, 801b), the arrangement of the levers and the profile of their tracks allowing the slider (411) to slide in the tracks (800, 801a, 801b), regardless of the position on the spindle, by simultaneously stopping or rotating the control levers (80a, 80b), pivoting simultaneous levers (80a, 80b) setting switch position the auxiliary switch (7). Actionneur (1) selon la revendication 1, dans lequel chaque piste de levier comporte une première partie rectiligne (800a, 800b) et une partie incurvée (801a, 801b) en continuité avec sa partie rectiligne (800a), les longueurs respectives de la première partie rectiligne et de la partie incurvée permettant au curseur (411) de coulisser dans les parties : - rectilignes (800a, 800b) alignées entre elles sans faire pivoter les leviers de commande (80a, 80b) lorsque l'arbre d'entraînement (6) est entre les deux positions déterminées (I et O), - incurvées (801a, 801b) en faisant pivoter simultanément les leviers de commande (80a, 80b) lorsque l'arbre d'entraînement (6) est dans une position immédiatement après l'une des deux positions déterminées (I et O). An actuator (1) according to claim 1, wherein each lever track has a first straight portion (800a, 800b) and a curved portion (801a, 801b) in continuity with its straight portion (800a), the respective lengths of the first rectilinear portion and the curved portion allowing the slider (411) to slide in the parts: - rectilinear (800a, 800b) aligned with each other without rotating the control levers (80a, 80b) when the drive shaft (6) is between the two determined positions (I and O), - Curved (801a, 801b) by simultaneously rotating the control levers (80a, 80b) when the drive shaft (6) is in a position immediately after one of two specific positions (I and O). Actionneur (1) selon la revendication 2, dans lequel chaque piste (800a, 800b) comprend une deuxième partie rectiligne (802a, 802b) en continuité avec la partie incurvée (801a, 801b), la longueur de la deuxième partie rectiligne (802a, 802b) permettant au curseur (411) coulissant à l'intérieur de s'arrêter sans pivotement des leviers (80a, 80b), après que l'alimentation du moteur électrique (3) ait été coupée par l'interrupteur auxiliaire (7) en position de commutation.An actuator (1) according to claim 2, wherein each track (800a, 800b) comprises a second straight portion (802a, 802b) in continuity with the curved portion (801a, 801b), the length of the second straight portion (802a, 802b) allowing the slider (411) slidable inside stopping without pivoting the levers (80a, 80b), after the power supply of the electric motor (3) has been cut off by the auxiliary switch (7) in the switching position. Actionneur (1) selon l'une des revendications 1 à 3, dans lequel les deux leviers de commande (80a, 80b) sont reliés entre eux par une première biellette (82).Actuator (1) according to one of claims 1 to 3, wherein the two control levers (80a, 80b) are interconnected by a first link (82). Actionneur (1) selon l'une quelconque des revendications précédentes, dans lequel les leviers de commande (80a, 80b) sont reliés entre eux de manière à pivoter dans le même sens de rotation.Actuator (1) according to any one of the preceding claims, wherein the control levers (80a, 80b) are connected to each other so as to pivot in the same direction of rotation. Actionneur (1) selon l'une quelconque des revendications précédentes, dans lequel un des leviers de commande (80b) est relié au premier contact auxiliaire (7) par une deuxième biellette (83).An actuator (1) according to any one of the preceding claims, wherein one of the control levers (80b) is connected to the first auxiliary contact (7) by a second link (83). Actionneur (1) selon l'une quelconque des revendications précédentes, dans lequel deux cylindres (9a, 9b) s'étendent parallèlement à l'arbre d'entraînement (6) et sont positionnés à une distance telle qu'ils forment chacun une butée du levier (5) à fourche (50) dans l'une des deux positions déterminées de l'arbre d'entraînement (6).Actuator (1) according to any one of the preceding claims, wherein two cylinders (9a, 9b) extend parallel to the drive shaft (6) and are positioned at a distance such that they each form a stop lever (5) with fork (50) in one of two predetermined positions of the drive shaft (6). Actionneur (1) selon l'une quelconque des revendications précédentes, dans lequel les deux leviers de commande (80a, 80b) sont identiques.An actuator (1) according to any one of the preceding claims, wherein the two control levers (80a, 80b) are identical. Actionneur (1) selon l'une quelconque des revendications précédentes, dans lequel le levier de commande (80a) est relié à une pièce (84) formant coulisseau, la liaison entre le levier (80a) et le coulisseau (84) étant prévue de telle façon que, lorsque le levier (80a) est en position pivotée correspondant à une position du curseur (411) au-delà des deux positions déterminées (I et O), le coulisseau (84) en translation actionne un frein mécanique (110) de l'engrenage (4) et, lorsque le levier (80a) est en position non pivotée correspondant à une position du curseur (411) entre les deux positions déterminées (I et O), le coulisseau (84) en translation opposée relâche le frein mécanique (110).An actuator (1) according to any one of the preceding claims, wherein the control lever (80a) is connected to a slide part (84), the connection between the lever (80a) and the slide (84) being provided from such that, when the lever (80a) is in the rotated position corresponding to a position of the slider (411) beyond the two determined positions (I and O), the slider (84) in translation actuates a mechanical brake (110) of the gear (4) and, when the lever (80a) is in the non-pivoted position corresponding to a position of the slider (411) between the two determined positions (I and O), the slider (84) in opposite translation releases the mechanical brake (110). Actionneur (1) selon l'une quelconque des revendications précédentes, comprenant un bâti (2) avec au moins une embase (20) sur laquelle sont fixés le moteur et l'engrenage et avec un support principal (21) sur lequel est monté en rotation l'arbre d'entraînement (6), le support principal (21) et l'embase (20) étant réalisés à partir de tôles de métal pliées.Actuator (1) according to any one of the preceding claims, comprising a frame (2) with at least one base (20) on which the motor and the gear are fixed and with a main support (21) on which is mounted rotating the drive shaft (6), the main support (21) and the base (20) being made from folded metal sheets. Interrupteur haute ou moyenne tension, tel qu'un sectionneur de terre, comprenant un actionneur (1) de type électromécanique selon l'une quelconque des revendications précédentes, dans lequel l'arbre d'entraînement (6) est relié au contact principal mobile de l'interrupteur, les positions déterminées de l'arbre d'entraînement étant les positions d'ouverture (O) et de fermeture (I) du contact principal.High or medium voltage switch, such as an earthing switch, comprising an electromechanical type actuator (1) according to one of the any of the preceding claims, wherein the drive shaft (6) is connected to the movable main contact of the switch, the determined positions of the drive shaft being the open (O) and closing positions ( I) of the main contact.
EP08167588A 2007-10-29 2008-10-27 Electromagnetic actuator and high or medium-voltage disconnecting switch equipped with such an actuator Not-in-force EP2056313B1 (en)

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FR0758657A FR2923074B1 (en) 2007-10-29 2007-10-29 ELECTROMECHANICAL ACTUATOR AND HIGH VOLTAGE OR MEDIUM VOLTAGE DISCONNECT PROVIDER PROVIDED WITH SUCH ACTUATOR

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EP2056313A1 true EP2056313A1 (en) 2009-05-06
EP2056313B1 EP2056313B1 (en) 2012-03-28

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EP (1) EP2056313B1 (en)
CN (1) CN101425402B (en)
AT (1) ATE551707T1 (en)
FR (1) FR2923074B1 (en)

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CN103065827B (en) * 2012-12-28 2015-07-01 常熟开关制造有限公司(原常熟开关厂） Operating mechanism with automatic switch transfer
CN103021692B (en) * 2012-12-28 2015-10-28 常熟开关制造有限公司(原常熟开关厂） A kind of switching mechanism of switchgear operating mechanism
CN106783285B (en) * 2016-11-25 2019-01-01 江苏省如高高压电器有限公司 A kind of isolation circuit breakers steerable system
CN106531537B (en) * 2016-11-25 2018-08-10 江苏省如高高压电器有限公司 A kind of isolation circuit breakers close locking device
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CN114300296B (en) * 2021-12-30 2024-01-16 深圳供电局有限公司 Superconducting isolating switch and corresponding isolating switch operating mechanism
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US20090108689A1 (en) 2009-04-30
CN101425402B (en) 2013-04-24
CN101425402A (en) 2009-05-06
FR2923074B1 (en) 2009-12-11
US7932794B2 (en) 2011-04-26
FR2923074A1 (en) 2009-05-01
ATE551707T1 (en) 2012-04-15
EP2056313B1 (en) 2012-03-28

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