EP0657909A1 - Electric switch with fault tripping - Google Patents

Electric switch with fault tripping Download PDF

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Publication number
EP0657909A1
EP0657909A1 EP94402763A EP94402763A EP0657909A1 EP 0657909 A1 EP0657909 A1 EP 0657909A1 EP 94402763 A EP94402763 A EP 94402763A EP 94402763 A EP94402763 A EP 94402763A EP 0657909 A1 EP0657909 A1 EP 0657909A1
Authority
EP
European Patent Office
Prior art keywords
contact
movable contact
lever
lock mechanism
switch according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94402763A
Other languages
German (de)
French (fr)
Other versions
EP0657909B1 (en
Inventor
Francis Deckert
Michèle Bildstein
Jean-Marc Braun
Christian Dietrich
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.)
Hager Electro SAS
Original Assignee
Hager Electro 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 Hager Electro SAS filed Critical Hager Electro SAS
Publication of EP0657909A1 publication Critical patent/EP0657909A1/en
Application granted granted Critical
Publication of EP0657909B1 publication Critical patent/EP0657909B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/522—Manual reset mechanisms which may be also used for manual release actuated by lever comprising a cradle-mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2300/00—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H
    • H01H2300/046—Orthogonal indexing scheme relating to electric switches, relays, selectors or emergency protective devices covered by H01H using snap closing mechanisms
    • H01H2300/048—Snap closing by latched movable contact, wherein the movable contact is held in a minimal distance from the fixed contact during first phase of closing sequence in which a closing spring is charged

Definitions

  • the present invention relates to an electric switch with trip on fault, of the type comprising: fixed contact means; movable contact means capable of assuming a working position, in which they cooperate electrically with the fixed contact means, and a rest position for which no electrical cooperation takes place; a lock mechanism, operable by manual control means for placing said movable contact means in one or the other of said positions; elastic return means for urging the movable contact means towards their rest position; and an electrical fault detector reacting to a fault by moving to the active position to trigger said lock mechanism and cause said movable contact means to return to the rest position under the action of said elastic return means.
  • Switches of this type are in particular differential switches, for example triggered by a relay controlled by a detection toroid sensitive to a differential current.
  • the invention aims to provide a switch of this type which allows on the one hand a rapid opening of the contacts in the event of a fault and on the other hand a closing of the contacts under pressure independent of the lever or other actuating member. switch manual.
  • Another objects of the invention are to provide a simple device architecture that facilitates mounting, to optimize the forces transmitted by the different parts of the mechanism, and to ensure effective display or detection of trips.
  • the switch further comprises releasable connection means which can assume an engaged position, for which they form a mechanical connection between said lock mechanism and said means of movable contact, and a triggered position, for which said movable contact means are released mechanically from said lock mechanism, and by the fact that said connecting means in the engaged position react to the active positioning of the fault detector by setting in the triggered position.
  • the movable contact means are mechanically decoupled from said lock mechanism and its control means, so that the switch is quickly put in the open position by the action of the elastic means. reminder with which the mobile contact means are provided, only the inertia proper to the contact means being capable of limiting the speed of the opening of the electrical contact.
  • the lock mechanism may have a high total mass and be associated with means for visualizing trips or with auxiliary detection devices.
  • the lock mechanism is provided with its own return means, arranged so as to urge it towards its rest position when it is mechanically decoupled from the movable contact means. Thanks to this characteristic, after tripping of the switch on a fault, the lock mechanism automatically returns to its rest position.
  • the releasable connecting means comprise: a ramp or abutment surface provided in the movable contact means, a retaining element integral with a part of said lock mechanism and capable of cooperating with said ramp, and a trigger element comprising a guide surface, this element being able to assume an engaged position, for which said guide surface maintains said retaining element against said ramp, and a triggered position for which said guide surface is distant from said ramp.
  • the switch can be provided with temporary abutment means capable of assuming an active position in which they are interposed on the path of the movable contact means towards their working position; elastic energy storage means to allow further movement of the control means towards their working position while the movable contact means are stopped and to store the mechanical energy transmitted to said contact means; and means for placing in the inactive position said stop means when said lock mechanism reaches the vicinity of its working position. Thanks to this use of temporary abutment means which disappear when the lock mechanism reaches a position close to its working position, a high contact pressure close to the operating pressure is obtained as soon as the contacts are closed.
  • the temporary abutment means are provided with elastic return means urging them towards their active position, and the means serving to place the temporary abutment means in the inactive position comprise an element integral with the lock mechanism and arranged to separate said means from stop of their active position when the lock mechanism is in the vicinity of its working position.
  • said lock mechanism forms, in cooperation with the mobile contact means and said elastic return means of mobile contact, a bistable mechanical system whose two stable positions, called work and rest , respectively correspond to the working and rest positions of said movable contact means.
  • FIGS. 1 to 4 schematically represent a differential circuit breaker comprising a movable contact 50, a fixed contact 51, control means and trip means on fault, which will be described more far.
  • the words “mobile” and “fixed” are considered here with respect to the chassis (not shown) of the switch.
  • the switch is shown in the initial position - or rest -, contacts 50, 51 open. It includes a relay 1, which constitutes a tripping device in the event of differential electrical faults occurring on the circuit controlled by the switch.
  • the relay 1 is held in the reset position, supported by a spring 2, by means of a reset lever 3 articulated at 3a on the chassis of the device.
  • This lever 3 is itself supported on a stop 4 of a slide 5 functionally connected to the movable contact 50 by means which will be described later with reference to FIGS. 6 to 10.
  • the slider 5 is mounted on the vertically sliding chassis, according to FIGS. 1 to 3, by means not shown, and it is subjected to the action of elastic return means tending to move it upwards in these figures.
  • These return means are shown schematically in Figures 1 to 3 in the form of a powerful spring 5a, ensuring the contact pressure.
  • the lock mechanism comprises a lever 6, articulated around an axis 6a on the chassis, capable of being mechanically connected to the slide 5 by means of a rod - or connecting rod - 7, one end of which 7a is articulated on the lever 6 and whose other end 7b is capable of acting on a shoulder 11 provided on the slide 5 and opening into an oblique guide groove 11a of the slide 5 in which the end 7b can be retracted when it escapes the shoulder 11.
  • a contact position indicator 8 articulated around an axis 8a on the chassis, is angularly displaced, during the vertical displacement of the slide 5, by the action of an end 8b of an extension 8c of said indicator 8.
  • the end 8b slides in an oblique groove 9 of the slide 5.
  • the indicator 8 indicates, through a window 10, the position (closed or open) of the contacts 50, 51 of the switch.
  • the switch shown further comprises a differential fault display member comprising a pawl 16 cooperating with a latching element 17 of a differential trigger indicator 18 rotatably mounted about an axis which is preferably aligned with the axis 8a of the indicator 8.
  • a return spring 19 urges the differential trigger indicator 18 counterclockwise (according to FIG. 3).
  • the trigger 13 is itself blocked in its position, called “engaged position", in which it is represented in FIGS. 1 and 2, by a pawl in the shape of a half-moon 14 rotatably mounted around an axis 14a on the chassis, and associated with a return spring 14b.
  • the placing in the closed position of the contacts 50, 51 is accomplished when the movement of the lever 6 is stopped by a closing end-of-travel stop (not shown). At this moment, the position of the slide 5 corresponds to the setting in the closed state of the contacts 50, 51 (FIG. 2).
  • the relay 1 acts on the lever 3 which is free to pivot down, the stop 4 having been erased.
  • the lever 3 rotates the pawl 14, releasing the attachment of the trigger 13 which is then free to rotate around the axis 13a, clockwise, under the pressure of the end 7b of the connecting rod 7, end exerting a force f (FIG. 4) on the guide edge 12a of the groove 12.
  • the end 7b is, in fact, itself pushed upwards by the shoulder 11 of the slide 5 itself subject to the action of the return means 5a ( Figure 3).
  • the trigger 13 thus takes the so-called "triggered" position shown in FIG. 3, for which the guide edge 12a disappears, which has the consequence of allowing the end 7b of the rod 7 to slide along an oblique edge 11b extending downward the shoulder 11 of the groove 11a, as well as along the substantially horizontal part 12c of the angled groove 12, and allowing the slide 5 to return to the high position or the rest position - corresponding to the open state of contacts 50, 51.
  • the angle of inclination of the edge 11b of the groove 11a, as well as that of the part 12c of the groove 12 are chosen so that, at the moment when the guide edge 12a disappears in front of the end 7b, there has an optimal mechanical uncoupling between the slide 5, the connecting rod 7 and the trigger 13.
  • the upward movement of the slider 5 can be carried out very quickly because the slider 5 is at this time mechanically decoupled from all the other parts of the control mechanism, so that it is not slowed down by the inertia and the frictional forces of any of the parts, in motion at that time, of the control mechanism of the interrupter, apart from the own inertia of this slider 5 and the frictional forces to which it is subjected.
  • the indicator 8 is returned to its initial position by the oblique groove 9 of the slide 5.
  • the display of the trip on fault is carried out automatically in the following way: during rotation, the trip 13 acts on the pawl 16 which releases the latching element 17 from the differential trigger indicator 18 which, in turn, moves in front of the window 10 under the action of the spring 19.
  • the lever 3 When the slide 5 reaches the vicinity of its high position, the lever 3 is returned to the rearmed position by the action of the stopper 4.
  • the lever 6 also returns to the initial position (which is that of FIG. 1) by a pivoting caused by the action of a suitably dimensioned return spring 20, until said lever 6 encounters an opening end-of-travel stop (not shown).
  • This return to the initial position of the lever 6 is accompanied by the return to the starting position (position of FIG. 1) of the other parts of the switch control mechanism, and in particular that of the trigger 13 under the action of a return spring 22, such as a torsion spring as shown in FIGS. 4 and 5.
  • differential indicator 18 is returned to the starting position by a new actuation of the lever 6 of which an actuating element 6b (FIG. 2) acts on a lever 21 of this indicator 18.
  • Figure 4 shows the trigger 13 in the engaged position, while the contacts 50, 51 are closed.
  • the lever arm L1 of action of the force f defined above and the lever arm L2 of the force acting on the pawl 14, are chosen so as to sufficiently increase the forces transmitted by the return means 5a to the pawl 14 of the trigger 13, by means of the slider 5, the shoulder 11, the end 7b of the rod 7, and the edge 12a of the groove 12. This reduction makes it possible to limit the force required to trip on a switch fault at the differential relay 1, without the need for intermediate parts or references.
  • the spring 22 associated with the trigger 13, which is preferably a torsion spring as shown diagrammatically in FIGS. 4 and 5, is suitably sized and arranged to allow play 23 (FIG. 1) essential for resetting the pawl 14.
  • the spring 22 contributes also, by an adequate dosage of its force, to reduce the force exerted on the coupling between trigger 13 and pawl 14.
  • the end 7b of the rod 7, the groove 11a of the slider 5, and the trigger 13 provided with the groove 12 together form a releasable mechanical connection device capable of mechanically coupling and uncoupling the slider 5 and the control mechanism 3 , 6, 7, 11 to 14.
  • this connecting device 7b, 11a, 13 When this connecting device 7b, 11a, 13 is in the active - or engaged - position (position which corresponds to the engaged position of the trigger 13 as shown in Figures 1 and 2), it allows the control mechanism 3, 6, 7, 11 to 14 to form, with the slider 5 provided with its elastic return means 5a, a bistable mechanical system whose stable positions correspond, respectively, to the open (FIG. 1) and closed positions ( Figure 2) of the contacts 50, 51.
  • connection device 7b, 11a, 13 when the connection device 7b, 11a, 13 is in the disengaged - or inactive - position (FIG. 3), the control mechanism 3, 6, 7, 11 to 14 constitutes, thanks in particular to the return spring 20 of handle 6, a monostable mechanical system tending to return to its position shown in FIG. 1.
  • control mechanism 3, 6, 7, 11 to 14 of the switch which has just been described has the advantage of requiring only a small number of parts, while incorporating the possibility of carrying out additional functions such as the display of the trip on differential fault (carried out by elements 16 to 19) or the indication of the position of the contacts (carried out by elements 8 and 9).
  • FIG. 5 shows the arrangement of the parts of the control mechanisms and associated functions, sandwiched between two plates 52 and 53 which are held fixed to one another by means of spacers 54.
  • the limited number of parts and the arrangement of these between the two plates 52, 53 allow easy assembly automation, all the parts being mounted in a preferred direction on one of the plates, for example the plate 52 serving as mounting base.
  • the arrangement shown is particularly suitable for the case where the movable contact or contacts are substantially parallel to the base of the housing of the device remote from the lever.
  • FIG. 6 is an exploded view of the part ensuring the "contact" function of the differential switch, this part being shown only very schematically in FIGS. 1 to 4.
  • This part represented in FIGS. 6 to 10, allows the rapid closure of the contacts, that is to say the very rapid movement of the movable contact (s) towards the fixed contact (s), with a very high contact pressure obtained from the start of the closure.
  • This device can advantageously be associated with the device according to FIGS. 1 to 5, but it can also be mounted independently on any other switch. According to the example shown, this function is provided by two movable contact blades 100 (see also Figures 7 to 10) which are placed substantially horizontally in a base 101 forming part of the chassis of the switch.
  • each of the blades 100 is mounted in the base 101 so as to be able to move substantially vertically, that is to say transversely to its plane, and to be able to pivot within a certain angular limit around its end 100a opposite to that 100b carrying the movable contact 50 (see FIG. 7).
  • the base 101 houses a breaking chamber which is equipped, as is known, with arc extinguishing elements, such as voltage-maintaining plates 102 and deionization plates 103.
  • Connection terminals 104 are placed on the side and on the other side of the breaking chamber.
  • a temporary stop element 105 is mounted on the base 101, above the contact blades 100, so that it can rotate around a horizontal axis.
  • the element 105 which is returned to a rest position by a spring not shown, is intended to cooperate with the blades 100 which are each provided with a notch 106 whose role will be explained below.
  • the interrupting chamber is closed by a cover 107, snapped onto the base 101 ensuring the compression of contact springs 108 each associated with a blade 100.
  • the cover 107 also carries supports 109 for the fixed contacts 51, as well as other parts of the switch which are not shown in FIG. 6.
  • a contact carrier spring 110 acts on a contact carrier 111 which is mounted in the base 101 in rotation about a horizontal axis. As will be explained below, the spring 110 cooperating with the contact springs 108 is intended to increase the opening speed of the movable contacts in the event of tripping on a fault.
  • Figure 7 shows the position "open contacts" of the device.
  • the operating member (handle 6) of the differential switch By acting on the operating member (handle 6) of the differential switch, it causes the downward movement of the control slide 5 ( Figures 1 to 4), which causes the pivoting of the contact carrier 111 in the direction timetable (figure 8).
  • the contact carrier 111 acts, by a cam surface 112, on the blades 100 at a midpoint of the latter, in order to move them up against the springs 108.
  • the ends 100a of the blades 100 being supported on a stop 101a of the base 101, the blades 100 perform a rotational movement around their end 100a, movement tending to bring their end 100b closer to the fixed contact 51 associated.
  • the blades 100 are stopped in this rotary movement, shortly before the closure of the contacts 50, 51, by a stop 113 placed on the temporary stop element 105. At this precise moment, the latter is rotated in the anti-direction - schedule by a cam surface 114 of the contact carrier 111. In this phase of the movement which corresponds to FIG. 9, the blades 100 rotate around the cam surface 112 by compressing their spring 108. If one continues to act on the control handle 6, the rotation of the element 105 continues until the stops 113 are opposite the notches 106 of the blades 100 and enter it causing the contacts to close ( Figure 10). The contact springs 108 ensure from this instant a contact pressure close to the operating pressure.
  • FIGS. 11 to 15, 16a and 16b show another embodiment of a differential switch which allows, like the one just described, rapid closing and opening of the contacts, and in which the contact pressure at the time contact closure is high and close to operating pressure.
  • FIG. 11 schematically represents the switch in the reset position, contacts open.
  • Relay 1 is held in the reset position by a spring 200 by means of a reset lever 201 and a stop 202 of a contact carrier 203.
  • the latter is mounted on the chassis with rotation around a axis 203a.
  • a contact position indicator 207 driven by an oblique groove 208 of the contact carrier 203, indicates the closed position of the contacts through a window 209 formed on a cover (not shown) of the chassis of the device.
  • the connecting rod 206 doubly bent to form end branches offset on either side of the central lever arm, presses on a central shoulder 210 of the contact carrier 203 and it is held in position by a guide surface 211, with a concave profile, a trigger 212, articulated on the chassis at 212a and itself blocked by a pawl 213 in the shape of a half-moon returned to the blocking position by a weak spring (not shown).
  • the contact carrier 203 has an arm 203b which pushes down a powerful return spring (not shown) which biases it in the direction of contact opening.
  • the articulation 212a is not very far from the shoulder 210 of the contact carrier 203.
  • the relay 1 acts on the reset lever 201 which rotates the pawl 213, by releasing the spout 212b of the trigger 212 located at the free end of the trigger, which can then, at against its weak return spring 223, turn anti-clockwise under the pressure of the rod 206 pushed back by the shoulder 210 of the contact carrier 203.
  • the rod 206 escapes by sliding against the guide surface 211 of the trigger 212, allowing the contact carrier 203 to return to the "open contacts" position under the influence of the return spring acting on the arm 203b without being slowed down by any of the elements of the mechanism 6, 201, 204 to 206 and 211 to 213.
  • the rotary indicator 207 is returned to its initial position by the oblique groove 208 of the contact carrier 203 which drives an arm 207a of the indicator.
  • the trigger 212 raises, by a relief 212c, a sliding differential trigger indicator 220 and the indicator 220 normally blocked by a spout 220a against a fixed stop 219 against which the pushes its return spring 221, moves in front of a window 222.
  • the indicator 220 drives in a counterclockwise direction a connecting piece 226 pivoting about an axis 226a which allows the transmission of the rotational movement to a conventional auxiliary device which can be coupled to the differential switch.
  • the connecting piece 226, which can be coupled to an auxiliary device, through a light in the wall of the switch housing, is driven until a ramp 220b of the indicator 220 meets a fixed relief 220c, which lifts the indicator and releases the part 226.
  • the auxiliary device if the auxiliary device is present, its mechanism, coupled to the part 226, prohibits the return of the latter, which, otherwise, would have taken place under the effect of its reminder elastic 226b, and this until the user has reset the auxiliary device.
  • the part 226 prevents the pawl 213 from returning to the rest position, so that manual resetting of the switch according to the invention is prevented, because the guide surface 211 always lets the end 206a escape. the rod 206 out of range of the contact carrier.
  • the part 226 has been returned to its initial position, freeing the arm 213a from the pawl 213, and the user can then reset the switch, causing the clockwise rotation of the indicator 207, which pushes the differential trigger indicator 220 until it is hooked behind the stop 219 and when the end or spout 226c of the connecting piece 226 is taken over. If the auxiliary device n is not present, it is the elastic return means 226b which will have brought the part 226 into the rest position.
  • the handle 6 returns to the open (rest) position under the action of its return spring 20, authorizing the replacement of all the parts of the control mechanism 201, 204 to 206 and 211 to 213 as shown in FIG. 11.
  • the differential trip indicator 220 if it has been actuated, is reset, as in saw, by the next engagement of the lock mechanism by the rotation of the contact position indicator 207.
  • the dimensioning of the lever arms L3, L4 and L5 (FIG. 15) enables the forces transmitted by contact springs to be multiplied sufficiently (shown schematically in FIGS. 11 to 15 in the form of a spring 225 interposed between the contact carrier 203 and contact 214) through the shoulder 210 of the contact carrier 203 to limit the force required to trip on a switch fault, by the differential relay 1, without the need for parts or intermediate references .
  • the spring 223, acting on the trigger 212 contributes, by an adequate dosage of its force, to reduce the force exerted on the attachment between trigger 212 and pawl 213.
  • This arrangement ensures optimal use of forces, in which the rod 206 rests on the contact carrier at a point 206a located on a geometric radius of the contact carrier 203 almost perpendicular to the rod 206, which makes the best use of the thrust of the spring 217 amplified by lever 218 in a position forming an obtuse angle with the connecting rods 205, 206, favoring a fairly great constancy of the thrust coming from spring 217.
  • Figures 16a and 16b show, in exploded views, the main elements of the embodiment of Figures 11 to 15, mounted on either side of a plate 227 which allows to separate, on either side of a median plane of the device, represented by the plate, a lock mechanism space (Fig 16a) and a trigger space (Fig 16b).
  • FIG. 17 represents the elements of the movable contact mechanism which are only very schematically represented by the elements 203, 214 and 225 in FIGS. 11 to 14, this mechanism being able, moreover, to be independent of the device described in FIGS. 11 to 16.
  • Movable contact blades 214 are placed vertically in the base 301 of the device so as to clear a location for a differential current measurement member 302.
  • the breaking chamber is equipped with arc extinguishing elements which is created when contacts are opened.
  • these extinguishing elements consist of tension-maintaining plates 303 and deionization plates 304.
  • Connection terminals 305 are placed on the one hand above the cut off and on the other hand below the measuring members 302.
  • temporary abutment elements 306 are placed above a contact carrier 203 and cooperate with notches 308 formed in the blades 214 as well as with tongues 309 of the contact carrier 203.
  • a return spring 310 acts on the arm 203b of the contact carrier 203.
  • the contact pressure is ensured by torsion springs 225 of which each blade 214 is equipped.
  • One of the ends 312 of each of the springs is supported on the contact carrier 203, while the middle part of each spring 225 is fixed to the associated blade 214 and that the other end 311 of this spring 225 is supported on base 301.
  • the mechanism being in its reset position, contacts open, as shown in FIG. 18, by acting on the lever 6 of the switch, causes the rotation of the contact carrier 203 which in its movement causes the blades 214 until the latter are stopped, shortly before the contacts are closed, by a tongue 313 provided on the temporary stop elements 306 (FIG. 19). These latter elements are driven in translation by the tongues 309 of the contact carrier 203.
  • the blades 214 stopped in rotation by the tongues 313, compress the contact springs 225.
  • the tongues 313 are opposite the notches 308 of the blades 214 , the latter tilt around a cam surface 314 of the contact carrier 203 (FIG. 20).
  • the contact springs 214 ensure at this instant a contact pressure close to the operating pressure.

Abstract

It includes fixed contact means (51), moving contact means (5, 5a, 50) capable of taking up a working position and a rest position, an electrical fault detector (1, 2, 3, 14) reacting to a fault by setting itself to active position, and control means (6, 7, 20) for switching the said movable contact means in one or the other of the said positions. Releasable linking means (7b, 11, 11a) can selectively take up an engaged position, in which case they form a mechanical link between the said control means (6, 7, 20) and the said movable contact means (5, 5a, 50), and a tripped position, in which case the said movable contact means are mechanically decoupled from the said control means. These linking means in engaged position react to the setting of the fault detector (1 to 3, 14) in active position by putting themselves in tripped position. <IMAGE>

Description

La présente invention concerne un interrupteur électrique à déclenchement sur défaut, du type comportant : des moyens de contact fixe ; des moyens de contact mobile pouvant prendre une position de travail, dans laquelle ils coopèrent électriquement avec les moyens de contact fixe, et une position de repos pour laquelle aucune coopération électrique n'a lieu ; un mécanisme à serrure, actionnable par des moyens de commande manuelle pour mettre lesdits moyens de contact mobile dans l'une ou l'autre desdites positions ; des moyens élastiques de rappel pour solliciter les moyens de contact mobile vers leur position de repos ; et un détecteur de défaut électrique réagissant à un défaut en se mettant en position active pour déclencher ledit mécanisme de serrure et provoquer le retour desdits moyens de contact mobile vers la position de repos sous l'action desdits moyens élastiques de rappel. Des interrupteurs de ce type sont notamment les interrupteurs différentiels, par exemple déclenchés par un relais commandé par un tore de détection sensible à un courant différentiel.The present invention relates to an electric switch with trip on fault, of the type comprising: fixed contact means; movable contact means capable of assuming a working position, in which they cooperate electrically with the fixed contact means, and a rest position for which no electrical cooperation takes place; a lock mechanism, operable by manual control means for placing said movable contact means in one or the other of said positions; elastic return means for urging the movable contact means towards their rest position; and an electrical fault detector reacting to a fault by moving to the active position to trigger said lock mechanism and cause said movable contact means to return to the rest position under the action of said elastic return means. Switches of this type are in particular differential switches, for example triggered by a relay controlled by a detection toroid sensitive to a differential current.

L'invention a pour but de proposer un interrupteur de ce type qui permette d'une part une ouverture rapide des contacts en cas de défaut et d'autre part une fermeture des contacts sous une pression indépendante de la manette ou autre organe d'actionnement manuel de l'interrupteur.The invention aims to provide a switch of this type which allows on the one hand a rapid opening of the contacts in the event of a fault and on the other hand a closing of the contacts under pressure independent of the lever or other actuating member. switch manual.

D'autres buts de l'invention sont de réaliser une architecture d'appareil simple et facilitant le montage, d'optimiser les efforts transmis par les différentes parties du mécanisme, et d'assurer une visualisation ou détection efficace des déclenchements.Other objects of the invention are to provide a simple device architecture that facilitates mounting, to optimize the forces transmitted by the different parts of the mechanism, and to ensure effective display or detection of trips.

Le premier de ces buts est atteint, conformément à l'invention, par le fait que l'interrupteur comporte en outre des moyens de liaison libérables pouvant prendre une position enclenchée, pour laquelle ils forment une liaison mécanique entre ledit mécanisme de serrure et lesdits moyens de contact mobile, et une position déclenchée, pour laquelle lesdits moyens de contact mobile sont libérés mécaniquement dudit mécanisme de serrure, et par le fait que lesdits moyens de liaison en position enclenchée réagissent à la mise en position active du détecteur de défaut en se mettant en position déclenchée.The first of these aims is achieved, in accordance with the invention, by the fact that the switch further comprises releasable connection means which can assume an engaged position, for which they form a mechanical connection between said lock mechanism and said means of movable contact, and a triggered position, for which said movable contact means are released mechanically from said lock mechanism, and by the fact that said connecting means in the engaged position react to the active positioning of the fault detector by setting in the triggered position.

Ainsi, lors de l'apparition d'un défaut, les moyens de contact mobile sont découplés mécaniquement dudit mécanisme de serrure et de ses moyens de commande, de sorte que l'interrupteur est mis rapidement en position ouverte par l'action des moyens élastiques de rappel dont sont munis les moyens de contact mobile, seule l'inertie propre des moyens de contact étant susceptible de limiter la rapidité de l'ouverture du contact électrique.Thus, when a fault occurs, the movable contact means are mechanically decoupled from said lock mechanism and its control means, so that the switch is quickly put in the open position by the action of the elastic means. reminder with which the mobile contact means are provided, only the inertia proper to the contact means being capable of limiting the speed of the opening of the electrical contact.

Par ailleurs, puisque leur inertie n'intervient plus dans la rapidité d'ouverture de l'interrupteur en cas de défaut, le mécanisme de serrure peut présenter une masse totale élevée et être associé à des moyens de visualisation des déclenchements ou à des appareils auxiliaires de détection.Furthermore, since their inertia no longer intervenes in the speed of opening of the switch in the event in the event of a fault, the lock mechanism may have a high total mass and be associated with means for visualizing trips or with auxiliary detection devices.

Avantageusement, le mécanisme de serrure est muni de moyens de rappel propres, agencés de manière à le solliciter vers sa position de repos lorsqu'il est découplé mécaniquement des moyens de contact mobile. Grâce à cette caractéristique, après déclenchement de l'interrupteur sur un défaut, le mécanisme de sérrure reprend automatiquement sa position de repos.Advantageously, the lock mechanism is provided with its own return means, arranged so as to urge it towards its rest position when it is mechanically decoupled from the movable contact means. Thanks to this characteristic, after tripping of the switch on a fault, the lock mechanism automatically returns to its rest position.

Avantageusement, les moyens de liaison libérables comprennent : une rampe ou surface de butée prévue dans les moyens de contact mobile, un élément de retenue solidaire d'une pièce dudit mécanisme de serrure et susceptible de coopérer avec ladite rampe, et un élément de déclenchement comportant une surface de guidage, cet élément pouvant prendre une position enclenchée, pour laquelle ladite surface de guidage maintient ledit élément de retenue contre ladite rampe, et une position déclenchée pour laquelle ladite surface de guidage est éloignée de ladite rampe.Advantageously, the releasable connecting means comprise: a ramp or abutment surface provided in the movable contact means, a retaining element integral with a part of said lock mechanism and capable of cooperating with said ramp, and a trigger element comprising a guide surface, this element being able to assume an engaged position, for which said guide surface maintains said retaining element against said ramp, and a triggered position for which said guide surface is distant from said ramp.

Afin d'atteindre le deuxième des buts susvisés, l'interrupteur peut être muni de moyens de butée temporaires susceptibles de prendre une position active dans laquelle ils s'interposent sur le trajet des moyens de contact mobile vers leur position de travail ; des moyens élastiques de stockage d'énergie pour permettre la poursuite du déplacement des moyens de commande vers leur position de travail alors que les moyens de contact mobile sont arrêtés et pour stocker l'énergie mécanique transmise auxdits moyens de contact ; et des moyens pour mettre en position inactive lesdits moyens de butée lorsque ledit mécanisme de serrure parvient au voisinage de sa position de travail. Grâce à cette utilisation de moyens de butée temporaires qui s'effacent lorsque le mécanisme de serrure atteint une position proche de sa position de travail, on obtient, dès la fermeture des contacts, une pression de contact élevée proche de la pression de service.In order to achieve the second of the abovementioned goals, the switch can be provided with temporary abutment means capable of assuming an active position in which they are interposed on the path of the movable contact means towards their working position; elastic energy storage means to allow further movement of the control means towards their working position while the movable contact means are stopped and to store the mechanical energy transmitted to said contact means; and means for placing in the inactive position said stop means when said lock mechanism reaches the vicinity of its working position. Thanks to this use of temporary abutment means which disappear when the lock mechanism reaches a position close to its working position, a high contact pressure close to the operating pressure is obtained as soon as the contacts are closed.

Avantageusement, les moyens de butée temporaires sont munis de moyens de rappel élastiques les sollicitant vers leur position active, et les moyens servant à mettre en position inactive les moyens de butée temporaires comprennent un élément solidaire du mécanisme de serrure et agencé pour écarter lesdits moyens de butée de leur position active lorsque le mécanisme de serrure se trouve au voisinage de sa position de travail.Advantageously, the temporary abutment means are provided with elastic return means urging them towards their active position, and the means serving to place the temporary abutment means in the inactive position comprise an element integral with the lock mechanism and arranged to separate said means from stop of their active position when the lock mechanism is in the vicinity of its working position.

Avantageusement, en position enclenchée des moyens de liaison, ledit mécanisme de serrure forme, en coopération avec les moyens de contact mobile et lesdits moyens de rappel élastiques de contact mobile, un système mécanique bistable dont les deux positions stables, dites de travail et de repos, correspondent respectivement aux positions de travail et de repos desdits moyens de contact mobile.Advantageously, in the engaged position of the connection means, said lock mechanism forms, in cooperation with the mobile contact means and said elastic return means of mobile contact, a bistable mechanical system whose two stable positions, called work and rest , respectively correspond to the working and rest positions of said movable contact means.

D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description qui va suivre de plusieurs modes de réalisation de l'invention, description faite en référence aux dessins annexés dont :

  • les figures 1 à 3 représentent schématiquement différentes positions fonctionnelles d'un interrupteur électrique à déclenchement sur défaut, selon un premier mode de réalisation de l'invention ;
  • la figure 4 est une vue schématique partielle plus détaillée de l'interrupteur des figures 1 à 3, dans la position de la figure 2 ;
  • la figure 5 est une vue éclatée partielle de l'interrupteur représenté aux figures 1 à 4, selon un mode de réalisation particulier de l'invention ;
  • la figure 6 est une vue éclatée complétant la figure 5;
  • les figures 7 à 10 sont des vues schématiques en coupe verticale en élévation de l'ensemble formé par les pièces de la figure 6, ces vues montrant différentes positions des moyens de commande et de contact mobile, selon un mode de réalisation particulier de l'invention ;
  • les figures 11 à 15 représentent schématiquement différentes positions fonctionnelles d'un interrupteur électrique à déclenchement sur défaut, selon un deuxième mode de réalisation de l'invention ;
  • les figures 16a et 16b sont des vues éclatées partielles du dispositif représenté schématiquement aux figures 11 à 15, selon un mode de réalisation de l'invention ;
  • la figure 17 est une vue éclatée complétant les figures 16a et 16b ; et
  • les figures 18 à 21 sont des vues schématiques en coupe verticale en élévation de l'ensemble formé par les pièces de la figure 17, ces vues montrant différentes positions des moyens de commande et de contact mobile, selon un mode de réalisation de l'invention.
Other characteristics and advantages of the invention will appear on reading the following description of several embodiments of the invention, description made with reference to the accompanying drawings, in which:
  • FIGS. 1 to 3 schematically represent different functional positions of an electric switch with trip on fault, according to a first embodiment of the invention;
  • Figure 4 is a partial schematic view more detailed of the switch of Figures 1 to 3, in the position of Figure 2;
  • Figure 5 is a partial exploded view of the switch shown in Figures 1 to 4, according to a particular embodiment of the invention;
  • Figure 6 is an exploded view supplementing Figure 5;
  • Figures 7 to 10 are schematic views in vertical section in elevation of the assembly formed by the parts of Figure 6, these views showing different positions of the control means and movable contact, according to a particular embodiment of the invention;
  • FIGS. 11 to 15 diagrammatically represent different functional positions of an electrical switch with trip on fault, according to a second embodiment of the invention;
  • Figures 16a and 16b are partial exploded views of the device shown schematically in Figures 11 to 15, according to an embodiment of the invention;
  • Figure 17 is an exploded view supplementing Figures 16a and 16b; and
  • Figures 18 to 21 are schematic views in vertical section in elevation of the assembly formed by the parts of Figure 17, these views showing different positions of the control means and movable contact, according to one embodiment of the invention .

Les figures 1 à 4 représentent schématiquement un interrupteur-disjoncteur différentiel comportant un contact mobile 50, un contact fixe 51, des moyens de commande et des moyens de déclenchement sur défaut, qui seront décrits plus loin. Les mots "mobile" et "fixe" sont considérés ici par rapport au châssis (non montré) de l'interrupteur. A la figure 1, l'interrupteur est représenté en position initiale - ou de repos -, contacts 50, 51 ouverts. Il comporte un relais 1, qui constitue un organe de déclenchement en cas de défauts électriques différentiels se produisant sur le circuit commandé par l'interrupteur. Le relais 1 est maintenu en position réarmée, en appui par un ressort 2, par l'intermédiaire d'un levier de réarmement 3 articulé en 3a sur le châssis de l'appareil. Ce levier 3 prend lui-même appui sur une butée 4 d'un coulisseau 5 relié fonctionnellement au contact mobile 50 par des moyens qui seront décrits plus loin en référence aux figures 6 à 10.Figures 1 to 4 schematically represent a differential circuit breaker comprising a movable contact 50, a fixed contact 51, control means and trip means on fault, which will be described more far. The words "mobile" and "fixed" are considered here with respect to the chassis (not shown) of the switch. In Figure 1, the switch is shown in the initial position - or rest -, contacts 50, 51 open. It includes a relay 1, which constitutes a tripping device in the event of differential electrical faults occurring on the circuit controlled by the switch. The relay 1 is held in the reset position, supported by a spring 2, by means of a reset lever 3 articulated at 3a on the chassis of the device. This lever 3 is itself supported on a stop 4 of a slide 5 functionally connected to the movable contact 50 by means which will be described later with reference to FIGS. 6 to 10.

Le coulisseau 5 est monté sur le châssis à coulissement vertical, selon les figures 1 à 3, par des moyens non représentés, et il est soumis à l'action de moyens élastiques de rappel tendant à le déplacer vers le haut de ces figures. Ces moyens de rappel sont représentés schématiquement aux figures 1 à 3 sous la forme d'un puissant ressort 5a, assurant la pression de contact.The slider 5 is mounted on the vertically sliding chassis, according to FIGS. 1 to 3, by means not shown, and it is subjected to the action of elastic return means tending to move it upwards in these figures. These return means are shown schematically in Figures 1 to 3 in the form of a powerful spring 5a, ensuring the contact pressure.

Le mécanisme de serrure comprend une manette 6, articulée autour d'un axe 6a sur le châssis, susceptible d'être reliée mécaniquement au coulisseau 5 par l'intermédiaire d'une tige - ou bielle - 7 dont une extrémité 7a est articulée sur la manette 6 et dont l'autre extrémité 7b est susceptible d'agir sur un épaulement 11 prévu sur le coulissau 5 et débouchant dans une rainure de guidage oblique 11a du coulisseau 5 dans laquelle l'extrémité 7b peut s'escamoter quand elle échappe à l'épaulement 11.The lock mechanism comprises a lever 6, articulated around an axis 6a on the chassis, capable of being mechanically connected to the slide 5 by means of a rod - or connecting rod - 7, one end of which 7a is articulated on the lever 6 and whose other end 7b is capable of acting on a shoulder 11 provided on the slide 5 and opening into an oblique guide groove 11a of the slide 5 in which the end 7b can be retracted when it escapes the shoulder 11.

Un indicateur de position des contacts 8, articulé autour d'un axe 8a sur le châssis, est déplacé angulairement, lors du déplacement vertical du coulisseau 5, par l'action d'une extrémité 8b d'un prolongement 8c dudit indicateur 8. L'extrémité 8b coulisse dans une rainure oblique 9 du coulisseau 5. L'indicateur 8 indique, à travers une fenêtre 10, la position (fermée ou ouverte) des contacts 50, 51 de l'interrupteur.A contact position indicator 8, articulated around an axis 8a on the chassis, is angularly displaced, during the vertical displacement of the slide 5, by the action of an end 8b of an extension 8c of said indicator 8. The end 8b slides in an oblique groove 9 of the slide 5. The indicator 8 indicates, through a window 10, the position (closed or open) of the contacts 50, 51 of the switch.

Comme le montre en particulier la figure 3, l'interrupteur représenté comporte en outre un organe de visualisation de défaut différentiel comprenant un cliquet 16 coopérant avec un élément d'accrochage 17 d'un indicateur de déclenchement différentiel 18 monté rotatif autour d'un axe qui est de préférence aligné avec l'axe 8a de l'indicateur 8. Un ressort de rappel 19 sollicite l'indicateur de déclenchement différentiel 18 dans le sens anti-horaire (selon la figure 3).As shown in particular in Figure 3, the switch shown further comprises a differential fault display member comprising a pawl 16 cooperating with a latching element 17 of a differential trigger indicator 18 rotatably mounted about an axis which is preferably aligned with the axis 8a of the indicator 8. A return spring 19 urges the differential trigger indicator 18 counterclockwise (according to FIG. 3).

L'interrupteur qui vient d'être décrit fonctionne de la manière suivante. Partant de la position ouverte (figure 1), les contacts 50, 51 sont fermés par une action manuelle sur la manette 6 dans le sens anti-horaire qui fait passer celle-ci de la position de la figure 1 à celle de la figure 2. Durant cette action, la bielle 7 appuie par son extrémité 7b sur l'épaulement 11 du coulisseau 5 pour déplacer ce dernier vers le bas à l'encontre des moyens de rappel 5a. Pendant toute la durée de ce mouvement, l'extrémité 7b est maintenue en appui sur l'épaulement 11 par le bord de droite 12a de la partie sensiblement verticale 12b d'une rainure en forme d'équerre 12 ménagée dans une pièce, dite "déclencheur" 13, qui est montée rotative sur le châssis autour d'un axe 13a.The switch which has just been described operates in the following manner. Starting from the open position (Figure 1), the contacts 50, 51 are closed by manual action on the handle 6 in the counterclockwise direction which moves it from the position of Figure 1 to that of Figure 2 During this action, the connecting rod 7 presses at its end 7b on the shoulder 11 of the slide 5 to move the latter down against the return means 5a. Throughout the duration of this movement, the end 7b is kept in abutment on the shoulder 11 by the right edge 12a of the substantially vertical part 12b of a square-shaped groove 12 formed in a part, called " trigger "13, which is rotatably mounted on the chassis around an axis 13a.

Le déclencheur 13 est lui-même bloqué dans sa position, dite "position enclenchée", dans laquelle il est représenté aux figures 1 et 2, par un cliquet en forme de demi-lune 14 monté rotatif autour d'un axe 14a sur le châssis, et associé à un ressort de rappel 14b.The trigger 13 is itself blocked in its position, called "engaged position", in which it is represented in FIGS. 1 and 2, by a pawl in the shape of a half-moon 14 rotatably mounted around an axis 14a on the chassis, and associated with a return spring 14b.

La mise en position fermée des contacts 50, 51 est accomplie lorsque le mouvement de la manette 6 est stoppé par une butée de fin de course de fermeture (non représentée). A ce moment, la position du coulisseau 5 correspond à la mise à l'état fermé des contacts 50, 51 (figure 2).The placing in the closed position of the contacts 50, 51 is accomplished when the movement of the lever 6 is stopped by a closing end-of-travel stop (not shown). At this moment, the position of the slide 5 corresponds to the setting in the closed state of the contacts 50, 51 (FIG. 2).

Durant l'action de fermeture des contacts de l'interrupteur, le prolongement 8c de l'indicateur 8 est déplacé vers la gauche par la rainure oblique 9 du coulisseau 5, de sorte que l'indicateur 8 se déplace vers la droite devant la fenêtre 10, en donnant, à la fin de cette action, une indication de la position fermée des contacts (figure 2).During the action of closing the switch contacts, the extension 8c of the indicator 8 is moved to the left by the oblique groove 9 of the slide 5, so that the indicator 8 moves to the right in front of the window 10, by giving, at the end of this action, an indication of the closed position of the contacts (FIG. 2).

En cas de défaut différentiel survenant alors que le déclencheur 13 se trouve en position enclenchée, et que le coulisseau 5 se trouve en position basse - ou position de travail - correspondant à l'état fermé des contacts 50, 51 (position de la figure 2), le relais 1 agit sur le levier 3 qui est libre de pivoter vers le bas, la butée 4 s'étant effacée. Durant ce mouvement, le levier 3 entraîne en rotation le cliquet 14, en libérant l'accrochage du déclencheur 13 qui est alors libre de tourner autour de l'axe 13a, dans le sens horaire, sous la pression de l'extrémité 7b de la bielle 7, extrémité exerçant une force f (figure 4) sur le bord de guidage 12a de la rainure 12. L'extrémité 7b est, en effet, elle-même repoussée ver le haut par l'épaulement 11 du coulisseau 5 lui-même soumis à l'action des moyens de rappel 5a (figure 3).In the event of a differential fault occurring while the trip device 13 is in the engaged position, and the slider 5 is in the low position - or working position - corresponding to the closed state of the contacts 50, 51 (position in FIG. 2 ), the relay 1 acts on the lever 3 which is free to pivot down, the stop 4 having been erased. During this movement, the lever 3 rotates the pawl 14, releasing the attachment of the trigger 13 which is then free to rotate around the axis 13a, clockwise, under the pressure of the end 7b of the connecting rod 7, end exerting a force f (FIG. 4) on the guide edge 12a of the groove 12. The end 7b is, in fact, itself pushed upwards by the shoulder 11 of the slide 5 itself subject to the action of the return means 5a (Figure 3).

Le déclencheur 13 prend ainsi la position dite "déclenchée" représentée à la figure 3, pour laquelle le bord de guidage 12a s'efface, ce qui a pour conséquence de permettre à l'extrémité 7b de la tige 7 de glisser le long d'un bord oblique 11b prolongeant vers le bas l'épaulement 11 de la rainure 11a, ainsi que le long de la partie sensiblement horizontale 12c de la rainure en équerre 12, et de permettre au coulisseau 5 de revenir en position haute -ou position de repos - correspondant à l'état ouvert des contacts 50, 51.The trigger 13 thus takes the so-called "triggered" position shown in FIG. 3, for which the guide edge 12a disappears, which has the consequence of allowing the end 7b of the rod 7 to slide along an oblique edge 11b extending downward the shoulder 11 of the groove 11a, as well as along the substantially horizontal part 12c of the angled groove 12, and allowing the slide 5 to return to the high position or the rest position - corresponding to the open state of contacts 50, 51.

L'angle d'inclinaison du bord 11b de la rainure 11a, ainsi que celui de la partie 12c de la rainure 12 sont choisis de manière que, au moment où le bord de guidage 12a s'efface devant l'extrémité 7b, il y ait un désaccouplement mécanique optimal entre le coulisseau 5, la bielle 7 et le déclencheur 13.The angle of inclination of the edge 11b of the groove 11a, as well as that of the part 12c of the groove 12 are chosen so that, at the moment when the guide edge 12a disappears in front of the end 7b, there has an optimal mechanical uncoupling between the slide 5, the connecting rod 7 and the trigger 13.

Grâce à ces dispositions, le mouvement vers le haut du coulisseau 5 peut s'effectuer très rapidement car le coulisseau 5 est à ce moment découplé mécaniquement de toutes les autres pièces du mécanisme de commande, de sorte qu'il n'est ralenti par l'inertie et les forces de frottement d'aucune des pièces, en mouvement à ce moment-là, du mécanisme de commande de l'interrupeur, hormis la propre inertie de ce coulisseau 5 et les forces de frottement auxquelles celui-ci est soumis.Thanks to these arrangements, the upward movement of the slider 5 can be carried out very quickly because the slider 5 is at this time mechanically decoupled from all the other parts of the control mechanism, so that it is not slowed down by the inertia and the frictional forces of any of the parts, in motion at that time, of the control mechanism of the interrupter, apart from the own inertia of this slider 5 and the frictional forces to which it is subjected.

L'indicateur 8 est ramené à sa position initiale par la rainure oblique 9 du coulisseau 5.The indicator 8 is returned to its initial position by the oblique groove 9 of the slide 5.

L'affichage du déclenchement sur défaut est réalisé automatiquement de la manière suivante : en cours de rotation, le déclencheur 13 agit sur le cliquet 16 qui libère l'élément d'accrochage 17 de l'indicateur de déclenchement différentiel 18 qui, à son tour, se déplace devant la fenêtre 10 sous l'action du ressort 19.The display of the trip on fault is carried out automatically in the following way: during rotation, the trip 13 acts on the pawl 16 which releases the latching element 17 from the differential trigger indicator 18 which, in turn, moves in front of the window 10 under the action of the spring 19.

Lorsque le coulisseau 5 parvient au voisinage de sa position haute, le levier 3 est remis en position réarmée grâce à l'action de la butée 4. La manette 6 revient elle aussi en position initiale (qui est celle de la figure 1) par un pivotement provoqué par l'action d'un ressort de rappel 20 convenablement dimensionné, jusqu'à ce que ladite manette 6 rencontre une butée de fin de course d'ouverture (non représentée). Cette remise en position initiale de la manette 6 s'accompagne de la remise en position de départ (position de la figure 1) des autres pièces du mécanisme de commande de l'interrupteur, et notamment celle du déclencheur 13 sous l'action d'un ressort de rappel 22, tel qu'un ressort de torsion comme le montrent les figures 4 et 5.When the slide 5 reaches the vicinity of its high position, the lever 3 is returned to the rearmed position by the action of the stopper 4. The lever 6 also returns to the initial position (which is that of FIG. 1) by a pivoting caused by the action of a suitably dimensioned return spring 20, until said lever 6 encounters an opening end-of-travel stop (not shown). This return to the initial position of the lever 6 is accompanied by the return to the starting position (position of FIG. 1) of the other parts of the switch control mechanism, and in particular that of the trigger 13 under the action of a return spring 22, such as a torsion spring as shown in FIGS. 4 and 5.

Il est à noter que l'indicateur différentiel 18 est remis en position de départ par un nouvel actionnement de la manette 6 dont un élément d'actionnement 6b (figure 2) agit sur un levier 21 de cet indicateur 18.It should be noted that the differential indicator 18 is returned to the starting position by a new actuation of the lever 6 of which an actuating element 6b (FIG. 2) acts on a lever 21 of this indicator 18.

La figure 4 montre le déclencheur 13 en position enclenchée, alors que les contacts 50, 51 sont fermés. Comme on peut le voir sur cette figure, le bras de levier L1 d'action de la force f définie ci-dessus et le bras de levier L2 de la force agissant sur le cliquet 14, sont choisis de manière à démultiplier suffisamment les efforts transmis par les moyens de rappel 5a au cliquet 14 du déclencheur 13, par l'intermédiaire du coulisseau 5, de l'épaulement 11, de l'extrémité 7b de la tige 7, et du bord 12a de la rainure 12. Cette démultiplication permet de limiter la force nécessaire au déclenchement sur défaut de l'interrupteur au niveau du relais différentiel 1, sans qu'il y ait besoin de pièces ou renvois intermédiaires.Figure 4 shows the trigger 13 in the engaged position, while the contacts 50, 51 are closed. As can be seen in this figure, the lever arm L1 of action of the force f defined above and the lever arm L2 of the force acting on the pawl 14, are chosen so as to sufficiently increase the forces transmitted by the return means 5a to the pawl 14 of the trigger 13, by means of the slider 5, the shoulder 11, the end 7b of the rod 7, and the edge 12a of the groove 12. This reduction makes it possible to limit the force required to trip on a switch fault at the differential relay 1, without the need for intermediate parts or references.

Le ressort 22 associé au déclencheur 13, qui est de préférence un ressort de torsion comme représenté schématiquement aux figures 4 et 5, est convenablement dimensionné et agencé pour permettre un jeu 23 (figure 1) indispensable au réarmement du cliquet 14. Le ressort 22 contribue également, par un dosage adéquat de sa force, à diminuer la force exercée sur l'accrochage entre déclencheur 13 et cliquet 14.The spring 22 associated with the trigger 13, which is preferably a torsion spring as shown diagrammatically in FIGS. 4 and 5, is suitably sized and arranged to allow play 23 (FIG. 1) essential for resetting the pawl 14. The spring 22 contributes also, by an adequate dosage of its force, to reduce the force exerted on the coupling between trigger 13 and pawl 14.

L'extrémité 7b de la tige 7, la rainure 11a du coulisseau 5, et le déclencheur 13 muni de la rainure 12 forment ensemble un dispositif de liaison mécanique libérable susceptible d'accoupler et de désaccoupler mécaniquement le coulisseau 5 et le mécanisme de commande 3, 6, 7, 11 à 14. Lorsque ce dispositif de liaison 7b, 11a, 13 est en position active - ou embrayée - (position qui correspond à la position enclenchée du déclencheur 13 telle que représentée aux figures 1 et 2), il permet au mécanisme de commande 3, 6, 7, 11 à 14 de former, avec le coulisseau 5 muni de ses moyens de rappel élastiques 5a, un système mécanique bistable dont les positions stables correspondent, respectivement, aux positions ouverte (figure 1) et fermée (figure 2) des contacts 50, 51.The end 7b of the rod 7, the groove 11a of the slider 5, and the trigger 13 provided with the groove 12 together form a releasable mechanical connection device capable of mechanically coupling and uncoupling the slider 5 and the control mechanism 3 , 6, 7, 11 to 14. When this connecting device 7b, 11a, 13 is in the active - or engaged - position (position which corresponds to the engaged position of the trigger 13 as shown in Figures 1 and 2), it allows the control mechanism 3, 6, 7, 11 to 14 to form, with the slider 5 provided with its elastic return means 5a, a bistable mechanical system whose stable positions correspond, respectively, to the open (FIG. 1) and closed positions (Figure 2) of the contacts 50, 51.

En revanche, lorsque le dispositif de liaison 7b, 11a, 13 se trouve en position débrayée - ou inactive - (figure 3), le mécanisme de commande 3, 6, 7, 11 à 14 constitue , grâce notamment au ressort de rappel 20 de la manette 6, un système mécanique monostable tendant à revenir à sa position représentée en figure 1.On the other hand, when the connection device 7b, 11a, 13 is in the disengaged - or inactive - position (FIG. 3), the control mechanism 3, 6, 7, 11 to 14 constitutes, thanks in particular to the return spring 20 of handle 6, a monostable mechanical system tending to return to its position shown in FIG. 1.

Le mécanisme de commande 3, 6, 7, 11 à 14 de l'interrupteur qui vient d'être décrit présente l'avantage de ne nécessiter qu'un faible nombre de pièces, tout en intégrant la possibilité de réaliser des fonctions annexes telles que la visualisation du déclenchement sur défaut différentiel (réalisée par les éléments 16 à 19) ou l'indication de la position des contacts (réalisée par les éléments 8 et 9).The control mechanism 3, 6, 7, 11 to 14 of the switch which has just been described has the advantage of requiring only a small number of parts, while incorporating the possibility of carrying out additional functions such as the display of the trip on differential fault (carried out by elements 16 to 19) or the indication of the position of the contacts (carried out by elements 8 and 9).

La figure 5 montre l'agencement des pièces des mécanismes de commande et de fonctions annexes, en sandwich entre deux platines 52 et 53 qui sont maintenues fixées l'une à l'autre par l'intermédiaire d'entretoises 54.FIG. 5 shows the arrangement of the parts of the control mechanisms and associated functions, sandwiched between two plates 52 and 53 which are held fixed to one another by means of spacers 54.

Le nombre restreint des pièces et l'agencement de celles-ci entre les deux platines 52, 53 permettent une automatisation aisée du montage, toutes les pièces étant montées suivant une direction préférentielle sur l'une des platines, par exemple la platine 52 servant de base de montage. La disposition représentée est particulièrement adaptée au cas où le ou les contacts mobiles sont sensiblement parallèles à la base du boîtier de l'appareil éloignée de la manette.The limited number of parts and the arrangement of these between the two plates 52, 53 allow easy assembly automation, all the parts being mounted in a preferred direction on one of the plates, for example the plate 52 serving as mounting base. The arrangement shown is particularly suitable for the case where the movable contact or contacts are substantially parallel to the base of the housing of the device remote from the lever.

La figure 6 est une vue éclatée de la partie assurant la fonction "contact" de l'interrupteur différentiel, cette partie n'étant représentée que très schématiquement aux figures 1 à 4. Cette partie, représentée sur les figures 6 à 10, permet la fermeture rapide des contacts, c'est-à-dire le mouvement très rapide du ou des contacts mobiles vers le ou les contacts fixes, avec une pression de contact très élevée obtenue dès le début de la fermeture. Ce dispositif peut être avantageusement associé au dispositif selon les figures 1 à 5, mais il peut aussi être monté indépendamment sur tout autre interrupteur. Selon l'exemple représenté, cette fonction est assurée par deux lames de contact mobiles 100 (voir aussi les figures 7 à 10) qui sont placées de façon sensiblement horizontale dans un socle 101 faisant partie du châssis de l'interrupteur. Cette disposition des lames de contact 100 permet de limiter le chemin parcouru par le courant, ce qui autorise une réduction des sections des différents éléments conducteurs tout en gardant un niveau d'échauffement acceptable. Chacune des lames 100 est montée dans le socle 101 de manière à pouvoir se déplacer de façon sensiblement verticale, c'est-à-dire transversalement à son plan, et à pouvoir pivoter dans une certaine limite angulaire autour de son extrémité 100a opposée à celle 100b portant le contact mobile 50 (voir la figure 7). Le socle 101 abrite une chambre de coupure qui est équipée, comme il est connu, d'éléments d'extinction d'arc, tels que tôles de maintien de tension 102 et tôles de désionisation 103. Des bornes de raccordement 104 sont placées de part et d'autre de la chambre de coupure.FIG. 6 is an exploded view of the part ensuring the "contact" function of the differential switch, this part being shown only very schematically in FIGS. 1 to 4. This part, represented in FIGS. 6 to 10, allows the rapid closure of the contacts, that is to say the very rapid movement of the movable contact (s) towards the fixed contact (s), with a very high contact pressure obtained from the start of the closure. This device can advantageously be associated with the device according to FIGS. 1 to 5, but it can also be mounted independently on any other switch. According to the example shown, this function is provided by two movable contact blades 100 (see also Figures 7 to 10) which are placed substantially horizontally in a base 101 forming part of the chassis of the switch. This arrangement of the contact blades 100 makes it possible to limit the path traveled by the current, which allows a reduction in the sections of the various conducting elements while keeping an acceptable level of heating. Each of the blades 100 is mounted in the base 101 so as to be able to move substantially vertically, that is to say transversely to its plane, and to be able to pivot within a certain angular limit around its end 100a opposite to that 100b carrying the movable contact 50 (see FIG. 7). The base 101 houses a breaking chamber which is equipped, as is known, with arc extinguishing elements, such as voltage-maintaining plates 102 and deionization plates 103. Connection terminals 104 are placed on the side and on the other side of the breaking chamber.

Un élément de butée temporaire 105 est monté sur le socle 101, au-dessus des lames de contact 100, de façon à pouvoir tourner autour d'un axe horizontal. L'élément 105, qui est rappelé vers une position de repos par un ressort non représenté, est destiné à coopérer avec les lames 100 qui sont munies chacune d'une échancrure 106 dont le rôle sera expliqué plus loin.A temporary stop element 105 is mounted on the base 101, above the contact blades 100, so that it can rotate around a horizontal axis. The element 105, which is returned to a rest position by a spring not shown, is intended to cooperate with the blades 100 which are each provided with a notch 106 whose role will be explained below.

La chambre de coupure est fermée par un couvercle 107, encliqueté sur le socle 101 en assurant la compression de ressorts de contact 108 associés chacun à une lame 100. Le couvercle 107 porte également des supports 109 pour les contacts fixes 51, ainsi que d'autres pièces de l'interrupteur qui ne sont pas représentées à la figure 6.The interrupting chamber is closed by a cover 107, snapped onto the base 101 ensuring the compression of contact springs 108 each associated with a blade 100. The cover 107 also carries supports 109 for the fixed contacts 51, as well as other parts of the switch which are not shown in FIG. 6.

Un ressort de porte-contacts 110 agit sur un porte-contacts 111 qui est monté dans le socle 101 à rotation autour d'un axe horizontal. Comme cela sera expliqué plus loin, le ressort 110 coopérant avec les ressorts de contact 108 est destiné à augmenter la vitesse d'ouverture des contacts mobiles en cas de déclenchement sur défaut.A contact carrier spring 110 acts on a contact carrier 111 which is mounted in the base 101 in rotation about a horizontal axis. As will be explained below, the spring 110 cooperating with the contact springs 108 is intended to increase the opening speed of the movable contacts in the event of tripping on a fault.

Le fonctionnement des différents éléments de la figure 6 va être maintenant décrit en référence aux figures 7 à 10. La figure 7 représente la position "contacts ouverts" du dispositif. En agissant sur l'organe de manoeuvre (manette 6) de l'interrupteur différentiel, on provoque le déplacement vers le bas du coulisseau de commande 5 (figures 1 à 4), ce qui entraîne le pivotement du porte-contacts 111 dans le sens horaire (figure 8). Lors de ce pivotement, le porte-contacts 111 agit, par une surface de came 112, sur les lames 100 en un point médian de ces dernières, afin de les déplacer vers le haut à l'encontre des ressorts 108. Les extrémités 100a des lames 100 étant en appui sur une butée 101a du socle 101, les lames 100 effectuent un mouvement de rotation autour de leur extrémité 100a, mouvement tendant à rapprocher leur extrémité 100b, du contact fixe 51 associé. Les lames 100 sont arrêtées dans ce mouvement de rotation, peu avant la fermeture des contacts 50, 51, par une butée 113 placée sur l'élément de butée temporaire 105. A ce moment précis, ce dernier est entraîné en rotation dans le sens anti-horaire par une surface de came 114 du porte-contacts 111. Dans cette phase du mouvement qui correspond à la figure 9, les lames 100 tournent autour de la surface de came 112 en comprimant leur ressort 108. Si l'on continue à agir sur la manette de commande 6, la rotation de l'élément 105 se poursuit jusqu'à ce que les butées 113 se trouvent en face des échancrures 106 des lames 100 et y pénètrent en entraînant la fermeture des contacts (figure 10). Les ressorts de contact 108 assurent dès cet instant une pression de contact proche de la pression de service. De plus, grâce à l'action de rappel des ressorts 108 et 110 tendant à faire pivoter le porte-contacts 111 dans le sens anti-horaire, et donc à solliciter le coulisseau 5 vers le haut, on assure le verrouillage du mécanisme de commande 3, 6, 7, 11 à 14 dans sa deuxième position stable (ou position de travail), tout en amenant les lames de contact mobiles 100 à leur position de service (ou de travail).The operation of the different elements of Figure 6 will now be described with reference to Figures 7 to 10. Figure 7 shows the position "open contacts" of the device. By acting on the operating member (handle 6) of the differential switch, it causes the downward movement of the control slide 5 (Figures 1 to 4), which causes the pivoting of the contact carrier 111 in the direction timetable (figure 8). During this pivoting, the contact carrier 111 acts, by a cam surface 112, on the blades 100 at a midpoint of the latter, in order to move them up against the springs 108. The ends 100a of the blades 100 being supported on a stop 101a of the base 101, the blades 100 perform a rotational movement around their end 100a, movement tending to bring their end 100b closer to the fixed contact 51 associated. The blades 100 are stopped in this rotary movement, shortly before the closure of the contacts 50, 51, by a stop 113 placed on the temporary stop element 105. At this precise moment, the latter is rotated in the anti-direction - schedule by a cam surface 114 of the contact carrier 111. In this phase of the movement which corresponds to FIG. 9, the blades 100 rotate around the cam surface 112 by compressing their spring 108. If one continues to act on the control handle 6, the rotation of the element 105 continues until the stops 113 are opposite the notches 106 of the blades 100 and enter it causing the contacts to close (Figure 10). The contact springs 108 ensure from this instant a contact pressure close to the operating pressure. In addition, thanks to the return action of the springs 108 and 110 tending to rotate the contact carrier 111 counterclockwise, and therefore to urge the slide 5 upward, the control mechanism is locked. 3, 6, 7, 11 to 14 in its second stable position (or working position), while bringing the movable contact blades 100 to their service (or working) position.

Les figures 11 à 15, 16a et 16b représentent un autre mode de réalisation d'un interrupteur différentiel qui permet, comme celui qui vient d'être décrit, une fermeture et une ouverture rapides des contacts, et dans lequel la pression de contact au moment de la fermeture des contacts est élevée et proche de la pression de service.FIGS. 11 to 15, 16a and 16b show another embodiment of a differential switch which allows, like the one just described, rapid closing and opening of the contacts, and in which the contact pressure at the time contact closure is high and close to operating pressure.

La figure 11 représente schématiquement l'interrupteur en position réarmée, contacts ouverts. Le relais 1 est maintenu en position réarmée par un ressort 200 par l'intermédiaire d'un levier de réarmement 201 et d'une butée 202 d'un porte-contacts 203. Ce dernier est monté sur le châssis à rotation autour d'un axe 203a.FIG. 11 schematically represents the switch in the reset position, contacts open. Relay 1 is held in the reset position by a spring 200 by means of a reset lever 201 and a stop 202 of a contact carrier 203. The latter is mounted on the chassis with rotation around a axis 203a.

En actionnant la manette 6, on agit sur le porte-contacts mobile 203, par l'intermédiaire d'une première bielle 204, par exemple, en forme d'étrier, articulée à une deuxième bielle 205, elle même articulée, à proximité du point d'articulation avec la première bielle à une troisième bielle 206, jusqu'à mise en butée de la manette 6 et fermeture des contacts mobile 214 et fixe 215 (figure 13). Un indicateur de position des contacts 207, entraîné par une rainure oblique 208 du porte-contacts 203, indique la position fermée des contacts à travers une fenêtre 209 ménagée sur un capot (non représenté) du châssis de l'appareil. La bielle 206, doublement coudée pour former des branches d'extrémité déportées de part et d'autre du bras de levier central, appuie sur un épaulement central 210 du porte-contacts 203 et elle est maintenue en position par une surface de guidage 211, à profil concave, d'un déclencheur 212, articulé sur le chassis en 212a et lui-même bloqué par un cliquet 213 en forme de demi-lune rappelé en position de blocage par un faible ressort (non représenté). Le porte-contacts 203 présente un bras 203b qui repousse vers le bas un puissant ressort de rappel (non représenté) qui le sollicite en direction d'ouverture de contact. L'articulation 212a n'est pas très éloignée de l'épaulement 210 du porte-contacts 203.By actuating the lever 6, one acts on the movable contact carrier 203, by means of a first connecting rod 204, for example, in the shape of a stirrup, articulated to a second connecting rod 205, itself articulated, to proximity of the point of articulation with the first connecting rod to a third connecting rod 206, until abutment of the lever 6 and closing of the movable contacts 214 and fixed 215 (Figure 13). A contact position indicator 207, driven by an oblique groove 208 of the contact carrier 203, indicates the closed position of the contacts through a window 209 formed on a cover (not shown) of the chassis of the device. The connecting rod 206, doubly bent to form end branches offset on either side of the central lever arm, presses on a central shoulder 210 of the contact carrier 203 and it is held in position by a guide surface 211, with a concave profile, a trigger 212, articulated on the chassis at 212a and itself blocked by a pawl 213 in the shape of a half-moon returned to the blocking position by a weak spring (not shown). The contact carrier 203 has an arm 203b which pushes down a powerful return spring (not shown) which biases it in the direction of contact opening. The articulation 212a is not very far from the shoulder 210 of the contact carrier 203.

Pendant la phase de fermeture (figure 12), juste avant que les contacts mobile 214 et fixe 215 ne se touchent, le porte-contacts 203 est arrêté dans sa rotation par un organe de butée temporaire 216 en forme de levier, mobile en rotation autour de l'axe de rotation 6a de la manette 6. En continuant à agir sur la manette 6, on comprime un ressort de stockage d'énergie mécanique 217, par le mouvement combiné des bielles 204 à 206 et par l'intermédiaire d'un levier de renvoi 218 articulé en 218a. Juste avant que la manette 6 n'atteigne sa position extrême (ou position de travail), un relief d'actionnement 224 de ladite manette 6 met en rotation l'organe de butée temporaire 216 de sorte que le porte-contacts 203 est libéré. Ceci permet d'avoir presque instantanément, à la fermeture des contacts 214, 215, une pression de contact proche de la pression de service et provenant de la compression du ressort 217, transmise par les bielles 205, 206.During the closing phase (FIG. 12), just before the movable contacts 214 and fixed 215 touch each other, the contact carrier 203 is stopped in its rotation by a temporary stop member 216 in the form of a lever, movable in rotation around of the axis of rotation 6a of the lever 6. By continuing to act on the lever 6, a mechanical energy storage spring 217 is compressed, by the combined movement of the connecting rods 204 to 206 and by means of a return lever 218 articulated at 218a. Just before the lever 6 reaches its extreme position (or working position), an actuation relief 224 of said lever 6 rotates the temporary stop member 216 so that the contact carrier 203 is released. This makes it possible to have, almost instantaneously, when the contacts 214, 215 are closed, a contact pressure close to the operating pressure and coming from the compression of the spring 217, transmitted by the connecting rods 205, 206.

En cas de défaut différentiel (figure 14), le relais 1 agit sur le levier de réarmement 201 qui entraîne en rotation le cliquet 213, en libérant le bec 212b du déclencheur 212 situé à l'extrémité libre du déclencheur, lequel peut alors, à l'encontre de son faible ressort de rappel 223, tourner dans le sens anti-horaire sous la pression de la bielle 206 repoussée par l'épaulement 210 du porte-contacts 203. Par son extrémité 206a, la bielle 206 s'échappe en glissant contre la surface de guidage 211 du déclencheur 212, en permettant au porte-contacts 203 de revenir en position "contacts ouverts" sous l'influence du ressort de rappel agissant sur le bras 203b sans être ralenti par l'un quelconque des éléments du mécanisme de commande 6, 201, 204 à 206 et 211 à 213. L'indicateur rotatif 207 est ramené à sa position initiale par la rainure oblique 208 du porte-contacts 203 qui entraine un bras 207a de l'indicateur.In the event of a differential fault (Figure 14), the relay 1 acts on the reset lever 201 which rotates the pawl 213, by releasing the spout 212b of the trigger 212 located at the free end of the trigger, which can then, at against its weak return spring 223, turn anti-clockwise under the pressure of the rod 206 pushed back by the shoulder 210 of the contact carrier 203. By its end 206a, the rod 206 escapes by sliding against the guide surface 211 of the trigger 212, allowing the contact carrier 203 to return to the "open contacts" position under the influence of the return spring acting on the arm 203b without being slowed down by any of the elements of the mechanism 6, 201, 204 to 206 and 211 to 213. The rotary indicator 207 is returned to its initial position by the oblique groove 208 of the contact carrier 203 which drives an arm 207a of the indicator.

En cours de rotation, le déclencheur 212 soulève, par un relief 212c, un indicateur de déclenchement différentiel coulissant 220 et l'indicateur 220 normalement bloqué par un bec 220a contre une butée fixe 219 contre laquelle le repousse son ressort de rappel 221, se déplace devant une fenêtre 222. Dans son déplacement, l'indicateur 220 entraîne en direction anti-horaire une pièce de liaison 226 pivotante autour d'un axe 226a qui permet la transmission du mouvement de rotation à un appareil auxiliaire usuel pouvant être accouplé à l'interrupteur différentiel.During rotation, the trigger 212 raises, by a relief 212c, a sliding differential trigger indicator 220 and the indicator 220 normally blocked by a spout 220a against a fixed stop 219 against which the pushes its return spring 221, moves in front of a window 222. In its displacement, the indicator 220 drives in a counterclockwise direction a connecting piece 226 pivoting about an axis 226a which allows the transmission of the rotational movement to a conventional auxiliary device which can be coupled to the differential switch.

La pièce de liaison 226 accouplable à un appareil auxiliaire, à travers une lumière de la paroi du boîtier de l'interrupteur, est entrainée jusqu'à ce qu'une rampe 220b de l'indicateur 220 rencontre un relief fixe 220c, qui soulève l'indicateur et libère la pièce 226. Cependant si l'appareil auxiliaire est présent, son mécanisme, accouplé à la pièce 226, interdit le retour de celle-ci, qui, sinon, aurait eu lieu sous l'effet de son moyen de rappel élastique 226b, et ceci tant que l'utilisateur n'aura pas réarmé l'appareil auxiliaire. Dans cette position la pièce 226 empêche le retour en position de repos du cliquet 213, de sorte que le réarmement manuel de l'interrupteur selon l'invention est empêché, du fait que la surface de guidage 211 laisse toujours échapper l'extrémité 206a de la bielle 206 hors de portée du porte-contacts.The connecting piece 226, which can be coupled to an auxiliary device, through a light in the wall of the switch housing, is driven until a ramp 220b of the indicator 220 meets a fixed relief 220c, which lifts the indicator and releases the part 226. However if the auxiliary device is present, its mechanism, coupled to the part 226, prohibits the return of the latter, which, otherwise, would have taken place under the effect of its reminder elastic 226b, and this until the user has reset the auxiliary device. In this position, the part 226 prevents the pawl 213 from returning to the rest position, so that manual resetting of the switch according to the invention is prevented, because the guide surface 211 always lets the end 206a escape. the rod 206 out of range of the contact carrier.

Une fois l'appareil auxiliaire réarmé (s'il est présent), la pièce 226 a été ramenée à sa position initiale, libérant le bras 213a du cliquet 213, et l'utilisateur peut alors réarmer l'interrupteur, entrainant la rotation horaire de l'indicateur 207, qui repousse l'indicateur de déclenchement différentiel 220 jusqu'à l'accrochage derrière la butée 219 et à la prise en charge de l'extrémité ou bec 226c de la pièce de liaison 226. Si l'appareil auxiliaire n'est pas présent, c'est le moyen de rappel élastique 226b qui aura ramené la pièce 226 en position de repos.Once the auxiliary device has been reset (if present), the part 226 has been returned to its initial position, freeing the arm 213a from the pawl 213, and the user can then reset the switch, causing the clockwise rotation of the indicator 207, which pushes the differential trigger indicator 220 until it is hooked behind the stop 219 and when the end or spout 226c of the connecting piece 226 is taken over. If the auxiliary device n is not present, it is the elastic return means 226b which will have brought the part 226 into the rest position.

La manette 6 revient en position ouverte (de repos) sous l'action de son ressort de rappel 20, en autorisant la remise en place de toutes les pièces du mécanisme de commande 201, 204 à 206 et 211 à 213 comme représenté à la figure 11. L'indicateur de déclenchement différentiel 220 s'il a été actionné, est réarmé, comme on l'a vu, par le prochain enclenchement du mécanisme de serrure par la rotation de l'indicateur de position des contacts 207.The handle 6 returns to the open (rest) position under the action of its return spring 20, authorizing the replacement of all the parts of the control mechanism 201, 204 to 206 and 211 to 213 as shown in FIG. 11. The differential trip indicator 220 if it has been actuated, is reset, as in saw, by the next engagement of the lock mechanism by the rotation of the contact position indicator 207.

Le dimensionnement des bras de levier L3, L4 et L5 (figure 15) permet de démultiplier suffisamment les efforts transmis par des ressorts de contact (représentés schématiquement sur les figures 11 à 15 sous la forme d'un ressort 225 interposé entre le porte-contacts 203 et le contact 214) à travers l'épaulement 210 du porte-contacts 203 pour limiter la force nécessaire au déclenchement sur défaut de l'interrupteur, par le relais différentiel 1, sans qu'il y ait besoin de pièces ou de renvois intermédiaires. Le ressort 223, agissant sur le déclencheur 212, contribue, par un dosage adéquat de sa force, à diminuer la force exercée sur l'accrochage entre déclencheur 212 et cliquet 213.The dimensioning of the lever arms L3, L4 and L5 (FIG. 15) enables the forces transmitted by contact springs to be multiplied sufficiently (shown schematically in FIGS. 11 to 15 in the form of a spring 225 interposed between the contact carrier 203 and contact 214) through the shoulder 210 of the contact carrier 203 to limit the force required to trip on a switch fault, by the differential relay 1, without the need for parts or intermediate references . The spring 223, acting on the trigger 212, contributes, by an adequate dosage of its force, to reduce the force exerted on the attachment between trigger 212 and pawl 213.

Cette disposition assure une utilisation optimale des efforts, dans laquelle la bielle 206 s'appuie sur le porte-contacts en un point 206a situé sur un rayon géométrique du porte-contacts 203 presque perpendiculaire à la bielle 206, laquelle utilise au mieux la poussée du ressort 217 amplifiée par le levier 218 dans une position formant un angle obtus avec les bielles 205, 206, favorisant une assez grande constance de la poussée provenant du ressort 217.This arrangement ensures optimal use of forces, in which the rod 206 rests on the contact carrier at a point 206a located on a geometric radius of the contact carrier 203 almost perpendicular to the rod 206, which makes the best use of the thrust of the spring 217 amplified by lever 218 in a position forming an obtuse angle with the connecting rods 205, 206, favoring a fairly great constancy of the thrust coming from spring 217.

Dans cette position les bielles 205 et 206 sont presque alignées et l'effort supporté par la bielle 204 est faible.In this position the rods 205 and 206 are almost aligned and the force supported by the rod 204 is low.

Les figures 16a et 16b représentent, par des vues éclatées, les principaux éléments du mode de réalisation des figures 11 à 15, montés de part et d'autre d'une platine 227 qui permet de séparer, de part et d'autre d'un plan médian de l'appareil, représenté par la platine, un espace mécanisme de serrure (Fig 16a) et un espace déclenchement (Fig 16b).Figures 16a and 16b show, in exploded views, the main elements of the embodiment of Figures 11 to 15, mounted on either side of a plate 227 which allows to separate, on either side of a median plane of the device, represented by the plate, a lock mechanism space (Fig 16a) and a trigger space (Fig 16b).

La figure 17 représente les éléments de mécanisme de contact mobile qui ne sont représentés que très schématiquement par les éléments 203, 214 et 225 aux figures 11 à 14, ce mécanisme pouvant d'ailleurs être indépendant du dispositif décrit aux figures 11 à 16.FIG. 17 represents the elements of the movable contact mechanism which are only very schematically represented by the elements 203, 214 and 225 in FIGS. 11 to 14, this mechanism being able, moreover, to be independent of the device described in FIGS. 11 to 16.

Des lames de contact mobile 214 sont placée verticalement dans le socle 301 de l'appareil de façon à dégager un emplacement pour un organe de mesure de courant différentiel 302. La chambre de coupure est équipée d'éléments d'extinction de l'arc qui est créé à l'ouverture des contacts. Dans l'exemple représenté à la figure 17, ces éléments d'extinction sont constitués par des tôles de maintien de tension 303 et des tôles de désionisation 304. Des bornes de raccordement 305 sont placées d'une part au-dessus de la chambre de coupure et d'autre part au-dessous des organes de mesure 302.Movable contact blades 214 are placed vertically in the base 301 of the device so as to clear a location for a differential current measurement member 302. The breaking chamber is equipped with arc extinguishing elements which is created when contacts are opened. In the example shown in FIG. 17, these extinguishing elements consist of tension-maintaining plates 303 and deionization plates 304. Connection terminals 305 are placed on the one hand above the cut off and on the other hand below the measuring members 302.

De préférence, des éléments de butée temporaires 306 sont placés au-dessus d'un porte-contacts 203 et coopèrent avec des échancrures 308 ménagées dans les lames 214 ainsi qu'avec des languettes 309 du porte-contacts 203. Un ressort de rappel 310 agit sur le bras 203b du porte-contacts 203. La pression de contact est assurée par des ressorts de torsion 225 dont chaque lame 214 est équipée. L'une des extrémités 312 de chacun des ressorts est en appui sur le porte-contacts 203, tandis que la partie médiane de chaque ressort 225 est fixée à la lame 214 associée et que l'autre extrémité 311 de ce ressort 225 est en appui sur le socle 301.Preferably, temporary abutment elements 306 are placed above a contact carrier 203 and cooperate with notches 308 formed in the blades 214 as well as with tongues 309 of the contact carrier 203. A return spring 310 acts on the arm 203b of the contact carrier 203. The contact pressure is ensured by torsion springs 225 of which each blade 214 is equipped. One of the ends 312 of each of the springs is supported on the contact carrier 203, while the middle part of each spring 225 is fixed to the associated blade 214 and that the other end 311 of this spring 225 is supported on base 301.

Le fonctionnement du dispositif qui vient d'être décrit va être maintenant exposé en regard des figures 17 à 21. Le mécanisme étant dans sa position réarmée, contacts ouverts, telle que représentée à la figure 18, en agissant sur la manette 6 de l'interrupteur, on provoque la rotation du porte-contacts 203 qui entraîne dans son mouvement les lames 214 jusqu'à ce que ces dernières soient arrêtées, peu avant la fermeture des contacts, par une languette 313 prévue sur les éléments de butée temporaires 306 (figure 19). Ces derniers éléments sont entraînés en translation par les languettes 309 du porte-contacts 203. Les lames 214, arrêtées en rotation par les languettes 313, compriment les ressorts de contact 225. Lorsque les languettes 313 se trouvent en face des échancrures 308 des lames 214, ces dernières basculent autour d'une surface de came 314 du porte-contacts 203 (figure 20). Les ressorts de contact 214 assurent à cet instant une pression de contact proche de la pression de service. En continuant à agir sur la manette de commande 6 de l'interrupteur, on assure le verrouillage du mécanisme de commande en position de travail tout en amenant les lames de contact 214 à leur position de travail (figure 21).The operation of the device which has just been described will now be explained with reference to FIGS. 17 to 21. The mechanism being in its reset position, contacts open, as shown in FIG. 18, by acting on the lever 6 of the switch, causes the rotation of the contact carrier 203 which in its movement causes the blades 214 until the latter are stopped, shortly before the contacts are closed, by a tongue 313 provided on the temporary stop elements 306 (FIG. 19). These latter elements are driven in translation by the tongues 309 of the contact carrier 203. The blades 214, stopped in rotation by the tongues 313, compress the contact springs 225. When the tongues 313 are opposite the notches 308 of the blades 214 , the latter tilt around a cam surface 314 of the contact carrier 203 (FIG. 20). The contact springs 214 ensure at this instant a contact pressure close to the operating pressure. By continuing to act on the control handle 6 of the switch, the control mechanism is locked in the working position while bringing the contact blades 214 to their working position (FIG. 21).

Claims (14)

Interrupteur électrique à déclenchement par défaut, du type comportant des moyens de contact fixe ; des moyens de contact mobile (5, 50 ; 203, 214, 225) pouvant prendre une position de travail, dans laquelle ils coopèrent électriquement avec les moyens de contact fixe, et une position de repos pour laquelle aucune coopération électrique n'a lieu ; un mécanisme à serrure (7, 13, 14 ; 204, 205, 206, 212, 218), actionnable par des moyens de commande manuelle (6), pour mettre lesdits moyens de contact mobile dans l'une ou l'autre desdites positions ; des moyens élastiques de rappel pour solliciter les moyens de contact mobile vers leur position de repos ; et un détecteur de défaut électrique (1 à 3, 14) réagissant à un défaut en se mettant en position active pour déclencher ledit mécanisme de serrure et provoquer le retour desdits moyens de contact mobile vers la position de repos sous l'action desdits moyens élastiques de rappel, caractérisé en ce qu'il comporte : - des moyens de liaison libérables (7b, 11, 11a, 11b, 12, 12a, 12b, 12c, 13 ; 206a, 210 à 213) pouvant prendre une position enclenchée, pour laquelle ils forment une liaison mécanique entre lesdits moyens de commande (6, 7, 20 ; 6, 20, 204 à 206) et lesdits moyens de contact mobile (5, 50 ; 203, 214, 225), et une position déclenchée, pour laquelle lesdits moyens de contact mobile sont libérés mécaniquement desdits moyens de commande (6, 7, 20 ; 6, 20, 204 à 206), et en ce que lesdits moyens de liaison en position enclenchée réagissent à la mise en position active du détecteur de défaut (1 à 3, 14) en se mettant en position déclenchée ; - et/ou des moyens de butée temporaires (105, 113 ; 216, 306, 313) susceptibles de prendre une position active dans laquelle ils s'interposent sur le trajet des moyens de contact mobile (100 ; 214) vers leur position de travail ; des moyens élastiques de stockage d'énergie (108 ; 217, 312) pour permettre la poursuite du déplacement des moyens de commande (6, 7, 20 ; 6, 20, 204 à 206) vers leur position de travail alors que les moyens de contact mobile (100 ; 214) sont arrêtés et pour stocker l'énergie mécanique transmise auxdits moyens de commande ; et des moyens (106, 114 ; 224, 308, 309) pour mettre en position inactive lesdits moyens de butée lorsque lesdits moyens de commande parviennent au voisinage de leur position de travail. Electric switch with default release, of the type comprising fixed contact means; movable contact means (5, 50; 203, 214, 225) capable of assuming a working position, in which they cooperate electrically with the fixed contact means, and a rest position for which no electrical cooperation takes place; a lock mechanism (7, 13, 14; 204, 205, 206, 212, 218), actuable by manual control means (6), for placing said movable contact means in one or the other of said positions ; elastic return means for urging the movable contact means towards their rest position; and an electrical fault detector (1 to 3, 14) reacting to a fault by moving to the active position to trigger said lock mechanism and cause said movable contact means to return to the rest position under the action of said elastic means recall, characterized in that it comprises: - releasable connection means (7b, 11, 11a, 11b, 12, 12a, 12b, 12c, 13; 206a, 210 to 213) which can take an engaged position, for which they form a mechanical connection between said control means ( 6, 7, 20; 6, 20, 204 to 206) and said movable contact means (5, 50; 203, 214, 225), and a triggered position, for which said movable contact means are mechanically released from said means of control (6, 7, 20; 6, 20, 204 to 206), and in that said connecting means in the engaged position react to the placing in the active position of the fault detector (1 to 3, 14) by switching on triggered position; - And / or temporary stop means (105, 113; 216, 306, 313) capable of assuming an active position in which they are interposed on the path of the mobile contact means (100; 214) towards their working position ; elastic energy storage means (108; 217, 312) to allow further movement of the control means (6, 7, 20; 6, 20, 204 to 206) towards their working position while the means of movable contact (100; 214) are stopped and for storing the mechanical energy transmitted to said control means; and means (106, 114; 224, 308, 309) for placing said stop means in the inactive position when said control means arrive in the vicinity of their working position. Interrupteur selon la revendication 1 caractérisé en ce que le mécanisme de serrure (6, 7, 20 ; 6, 20, 204 à 206) est muni de moyens de rappel propres (20) agencés de manière à le solliciter vers sa position de repos lorsqu'il est découplé mécaniquement des moyens de contact mobile (5, 50 ; 203, 214, 225).Switch according to claim 1 characterized in that the lock mechanism (6, 7, 20; 6, 20, 204 to 206) is provided with own return means (20) arranged so as to urge it towards its rest position when '' it is mechanically decoupled from the movable contact means (5, 50; 203, 214, 225). Interrupteur selon l'une quelconque des revendications 1 et 2, caractérisé en ce que les moyens de liaison libérables (7b, 11, 11a, 11b, 12, 12a, 12b, 12c, 13, 14 ; 206a, 210 à 213) comprennent : une surface de butée (11 ; 210) prévue dans les moyens de contact mobile (5 ; 203), un élément de retenue (7b ; 206a) solidaire d'une pièce (7 ; 206) du mécanisme de serrure et susceptible de coopérer avec ladite surface de butée, et un élément de déclenchement (13 ; 212) comportant une surface de guidage (12a ; 211), cet élément pouvant prendre une position enclenchée, pour laquelle ladite surface de guidage maintient ledit élément de retenue contre ladite surface de butée, et une position déclenchée pour laquelle ladite surface de guidage est éloignée de ladite surface de butée.Switch according to either of Claims 1 and 2, characterized in that the releasable connection means (7b, 11, 11a, 11b, 12, 12a, 12b, 12c, 13, 14; 206a, 210 to 213) include: an abutment surface (11; 210) provided in the movable contact means (5; 203), a retaining element (7b; 206a) integral with a part (7; 206) of the lock mechanism and capable of cooperating with said abutment surface, and a trigger element (13; 212) having a guide surface (12a; 211), this element being able to assume an engaged position, for which said guide surface holds said retaining element against said surface stop, and a triggered position for which said guide surface is distant from said stop surface. Interrupteur selon la revendication 3, caractérisé en ce que les moyens pour rendre inactifs les moyens de butée temporaires (105, 113 ; 216, 306, 313) comprennent un élément (114 ; 224, 309) du mécanisme de serrure de commande agencé pour écarter lesdits moyens de butée de leur position active lorsque le mécanisme de serrure se trouve au voisinage de sa position de travail.Switch according to claim 3, characterized in that the means for rendering the temporary stop means (105, 113; 216, 306, 313) inactive include an element (114; 224, 309) of the control lock mechanism arranged to spread said stop means from their active position when the lock mechanism is in the vicinity of its working position. Interrupteur selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les moyens de contact mobile comprennent au moins une lame (100 ; 214) dont une extrémité (100a) est soumise à l'action des moyens élastiques de stockage d'énergie (108 ; 225), dont une partie médiane est soumise à l'action (212 ; 314) du mécanisme de serrure et dont l'autre extrémité parcourt, lors du déplacement de ladite lame vers sa position de travail, un trajet sur lequel s'interposent (113 ; 313) lesdits moyens de butée temporaires en position active.Switch according to any one of Claims 1 to 4, characterized in that the movable contact means comprise at least one blade (100; 214), one end of which (100a) is subjected to the action of the elastic storage means of energy (108; 225), a middle part of which is subjected to the action (212; 314) of the lock mechanism and the other end of which travels, during the movement of said blade towards its working position, a path on which interposed (113; 313) said temporary stop means in the active position. Interrupteur selon l'une quelconque des revendications 1 à 5, caractérisé en ce que, en position enclenchée des moyens de liaison (7b, 11, 11a, 11b, 12, 12a, 12b, 12c, 13 ; 206a, 210 à 213), les moyens du mécanisme de serrure (6, 7, 20 ; 6, 20, 204 à 206) forment, en coopération avec les moyens de contact mobile (5, 50 ; 203, 214, 225) et lesdits moyens de rappel élastiques de contact mobile (5a ; 225), un système mécanique bistable dont les deux positions stables, dites de travail et de repos, correspondent respectivement aux positions de travail et de repos desdits moyens de contact mobile.Switch according to any one of claims 1 to 5, characterized in that, in the engaged position of the connecting means (7b, 11, 11a, 11b, 12, 12a, 12b, 12c, 13; 206a, 210 to 213), the means of the lock mechanism (6, 7, 20; 6, 20, 204 to 206) form, in cooperation with the movable contact means (5, 50; 203, 214, 225) and said elastic contact return means mobile (5a; 225), a bistable mechanical system whose two stable positions, called working and rest, correspond respectively to the working and rest positions of said mobile contact means. Interrupteur selon l'une quelconque des revendications 1 à 6 caractérisé en ce que le mécanisme de serrure comporte une manette de commande (6) rappellée en position inactive par un ressort de rappel (20) et articulée à une première bielle (204), elle-même articulée à une deuxième bielle (205), cette dernière étant articulée à une troisième bielle (206) à proximité du point d'articulation entre les première et deuxième bielles, ladite troisième bielle (206) étant susceptible de repousser un épaulement (210) du porte-contacts (203) en direction de fermeture de contact, ladite seconde bielle (205) étant articulée, à son extrémité éloignée de l'articulation avec la première bielle, à un levier (218) soumis à l'action d'un puissant ressort (217) maintenant une pression en direction de fermeture de contact.Switch according to any one of Claims 1 to 6 characterized in that the lock mechanism comprises a control lever (6) returned to the inactive position by a return spring (20) and articulated to a first connecting rod (204), itself articulated to a second connecting rod (205), the latter being articulated to a third connecting rod (206) near the point of articulation between the first and second connecting rods, said third connecting rod (206) being capable of repelling a shoulder (210) of the contact carrier (203 ) in the direction of contact closure, said second connecting rod (205) being articulated, at its end remote from the articulation with the first connecting rod, to a lever (218) subjected to the action of a powerful spring (217) now pressure in the direction of contact closure. Interrupteur selon la revendication 7, caractérisé en ce que le point d'appui de l'extrémité (206a) de ladite troisième bielle (206) contre l'épaulement (210) du porte-contacts (203) est situé sur un rayon géométrique de l'axe de rotation (203a) dudit porte-contacts assez proche de la perpendiculaire à la direction desdites troisième et deuxième bielles (206, 205) sensiblement alignées, ledit levier (218) faisant avec ladite deuxième bielle (205) un angle obtus.Switch according to claim 7, characterized in that the fulcrum of the end (206a) of said third connecting rod (206) against the shoulder (210) of the contact carrier (203) is located on a geometric radius of the axis of rotation (203a) of said contact carrier fairly close to the perpendicular to the direction of said third and second connecting rods (206, 205) substantially aligned, said lever (218) forming with said second connecting rod (205) an obtuse angle. Dispositif selon l'une des revendications 7 et 8 caractérisé en ce que ledit moyen de butée temporaire (216) est un levier articulé autour de l'axe (6a) de ladite manette de commande (6) et dont l'extrémité libre coopère avec un relief d'accrochage du porte-contacts (203), ladite manette (6) présentant un relief (224) susceptible de débloquer ledit levier (216) lorsqu'elle arrive à proximité de sa position active.Device according to either of Claims 7 and 8, characterized in that the said temporary stop means (216) is a lever articulated around the axis (6a) of the said control lever (6) and the free end of which cooperates with a contact holder mounting relief (203), said lever (6) having a relief (224) capable of unlocking said lever (216) when it comes close to its active position. Interrupteur selon l'une quelconque des revendications 1 à 9, caractérisé en ce qu'il comporte un indicateur de visualisation de position de contact (207) susceptible de se déplacer devant une fenêtre (209), entraîné de façon pivotante par une surface d'entraînement (208) du porte-contacts (203).Switch according to any one of claims 1 to 9, characterized in that it comprises a contact position display indicator (207) capable of moving in front of a window (209), pivotally driven by a surface of drive (208) of the contact carrier (203). Interrupteur selon la revendication 10, caractérisé en ce qu'il comporte un indicateur de visualisation de déclenchement sur défaut (220) sensiblement coulissant devant une fenêtre (222), normalement maintenu en position inactive par une butée fixe (219) contre laquelle le repousse un moyen élastique (221), et coopérant avec un élément de déclenchement (212) qui le dégage d'avec ladite butée en cas de déclenchement de l'appareil, des moyens (207) permettant son réarmement en position inactive lors du réarmement manuel de l'interrupteur.Switch according to claim 10, characterized in that it comprises a fault trip display indicator (220) substantially sliding in front of a window (222), normally maintained in the inactive position by a fixed stop (219) against which the pushes a elastic means (221), and cooperating with a tripping element (212) which releases it from said stop in the event of the device tripping, means (207) allowing it to be reset in the inactive position during manual resetting of the 'light switch. Interrupteur selon la revendication 11 caractérisé en ce que ledit indicateur de défaut (220) est susceptible d'entraîner une pièce de liaison (226) à l'encontre d'un moyen élastique de rappel (226b), ladite pièce de liaison agissant sur le moyen de cliquet (213) de façon que, si le mouvement vers la position de repos de ladite pièce de liaison (226) est empêché par l'action d'un appareil auxilliaire en laison mécanique avec ladite pièce, ledit moyen de cliquet (213) se trouve maintenu dans une position empêchant le réarmement manuel de l'interrupteur.Switch according to claim 11 characterized in that said fault indicator (220) is capable of driving a connecting piece (226) against an elastic return means (226b), said connecting piece acting on the ratchet means (213) so that, if movement to the rest position of said connecting piece (226) is prevented by the action of an auxiliary apparatus in mechanical contact with said piece, said ratchet means (213 ) is kept in a position preventing manual reset of the switch. Appareil selon la revendication 12 caractérisé en ce que ledit indicateur de défaut coulissant (220) est muni de moyens de rampe et de butée (220b, 220c) pour laisser échapper ladite pièce de liaison (226) vers la fin de son mouvement en position active en cas de déclenchement par défaut.Apparatus according to claim 12 characterized in that said sliding fault indicator (220) is provided with ramp and stop means (220b, 220c) to let escape said connecting piece (226) towards the end of its movement in the active position if triggered by default. Interrupteur selon l'une quelconque des revendications 1 à 13, caractérisé en ce que lesdits moyens de liaison libérables comportent un levier déclencheur (212) articulé en un point fixe (212a) proche d'un épaulement (210) du porte-contacts (203) sur lequel s'effectue la poussée du mécanisme de serrure, ledit levier de déclenchement (212) présentant, à une extrémité éloignée de ladite articulation, les moyens d'accrochage (212b) contre un cliquet (213) faisant partie des moyen de déclenchement par défaut.Switch according to any one of claims 1 to 13, characterized in that said releasable connecting means comprise a trigger lever (212) articulated at a fixed point (212a) close to a shoulder (210) of the contact carrier (203 ) on which the pushing of the lock mechanism takes place, said trigger lever (212) having, at an end remote from said articulation, the hooking means (212b) against a pawl (213) forming part of the trigger means by default.
EP94402763A 1993-12-06 1994-12-02 Electric switch with fault tripping Expired - Lifetime EP0657909B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9314595 1993-12-06
FR9314595A FR2713393B1 (en) 1993-12-06 1993-12-06 Electric switch with default release.

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Publication Number Publication Date
EP0657909A1 true EP0657909A1 (en) 1995-06-14
EP0657909B1 EP0657909B1 (en) 1998-03-04

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EP (1) EP0657909B1 (en)
AT (1) ATE163798T1 (en)
DE (1) DE69408800T2 (en)
ES (1) ES2113068T3 (en)
FR (1) FR2713393B1 (en)

Cited By (9)

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EP0897186A2 (en) * 1997-08-14 1999-02-17 Siemens Aktiengesellschaft Switch mechanism for a circuit breaker
EP1033737A1 (en) * 1999-03-04 2000-09-06 ABB Ricerca SpA Tripping device
FR2816105A1 (en) * 2000-10-25 2002-05-03 Fuji Electric Co Ltd CUTTING MECHANISM FOR CIRCUIT BREAKER
WO2005031778A1 (en) * 2003-10-01 2005-04-07 Moeller Gebäudeautomation KG Protective circuit breaker
WO2005069336A1 (en) * 2004-01-19 2005-07-28 Moeller Gebäudeautomation KG Electromechanical switch
WO2007096767A1 (en) * 2006-02-24 2007-08-30 Eaton Corporation Electrical switching apparatus and trip indicator therefor
EP2629315A1 (en) * 2012-02-14 2013-08-21 Eaton Industries GmbH Actuation mechanisms for circuit breakers
CN107644791A (en) * 2017-10-31 2018-01-30 浙江天正电气股份有限公司 A kind of feedback mechanism of reclosing and there is its breaker
WO2022023354A1 (en) * 2020-07-28 2022-02-03 Siemens Aktiengesellschaft Residual current fault indicator mechanism and circuit breaker with residual current fault indicator mechanism

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT505093B1 (en) * 2004-01-19 2013-02-15 Moeller Gebaeudeautomation Kg ELECTROMECHANICAL SWITCH
DE102012215187B4 (en) * 2012-08-27 2022-11-10 Siemens Aktiengesellschaft protective switching device

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US2204409A (en) * 1936-08-01 1940-06-11 Westinghouse Electric & Mfg Co Circuit breaker
US3171928A (en) * 1962-12-05 1965-03-02 Gen Electric Electric circuit breaker with cam surfaces and wedging roller
FR2610760A1 (en) * 1987-02-10 1988-08-12 Serd Soc Et Realisa Disjonct MANUALLY CONTROLLED LOW-VOLTAGE MULTIPOLAR AUTOMATIC SWITCH
FR2686453A1 (en) * 1992-01-17 1993-07-23 Legrand Sa Differential switch

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US2204409A (en) * 1936-08-01 1940-06-11 Westinghouse Electric & Mfg Co Circuit breaker
US3171928A (en) * 1962-12-05 1965-03-02 Gen Electric Electric circuit breaker with cam surfaces and wedging roller
FR2610760A1 (en) * 1987-02-10 1988-08-12 Serd Soc Et Realisa Disjonct MANUALLY CONTROLLED LOW-VOLTAGE MULTIPOLAR AUTOMATIC SWITCH
FR2686453A1 (en) * 1992-01-17 1993-07-23 Legrand Sa Differential switch

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0897186A2 (en) * 1997-08-14 1999-02-17 Siemens Aktiengesellschaft Switch mechanism for a circuit breaker
EP0897186A3 (en) * 1997-08-14 1999-08-04 Siemens Aktiengesellschaft Switch mechanism for a circuit breaker
EP1033737A1 (en) * 1999-03-04 2000-09-06 ABB Ricerca SpA Tripping device
FR2816105A1 (en) * 2000-10-25 2002-05-03 Fuji Electric Co Ltd CUTTING MECHANISM FOR CIRCUIT BREAKER
AT512503B1 (en) * 2003-10-01 2013-09-15 Moeller Gebaeudeautomation Kg BREAKERS
WO2005031778A1 (en) * 2003-10-01 2005-04-07 Moeller Gebäudeautomation KG Protective circuit breaker
AT512503A5 (en) * 2003-10-01 2013-09-15 Moeller Gebaeudeautomation Kg BREAKERS
WO2005069336A1 (en) * 2004-01-19 2005-07-28 Moeller Gebäudeautomation KG Electromechanical switch
WO2007096767A1 (en) * 2006-02-24 2007-08-30 Eaton Corporation Electrical switching apparatus and trip indicator therefor
CN101427337B (en) * 2006-02-24 2012-06-27 伊顿公司 Electrical switching apparatus and trip indicator therefor
EP2629315A1 (en) * 2012-02-14 2013-08-21 Eaton Industries GmbH Actuation mechanisms for circuit breakers
CN107644791A (en) * 2017-10-31 2018-01-30 浙江天正电气股份有限公司 A kind of feedback mechanism of reclosing and there is its breaker
WO2022023354A1 (en) * 2020-07-28 2022-02-03 Siemens Aktiengesellschaft Residual current fault indicator mechanism and circuit breaker with residual current fault indicator mechanism

Also Published As

Publication number Publication date
FR2713393A1 (en) 1995-06-09
DE69408800T2 (en) 1998-10-22
EP0657909B1 (en) 1998-03-04
ATE163798T1 (en) 1998-03-15
DE69408800D1 (en) 1998-04-09
ES2113068T3 (en) 1998-04-16
FR2713393B1 (en) 1996-02-23

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