EP0948021B1 - Multipolar differential switch - Google Patents

Multipolar differential switch Download PDF

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Publication number
EP0948021B1
EP0948021B1 EP99400774A EP99400774A EP0948021B1 EP 0948021 B1 EP0948021 B1 EP 0948021B1 EP 99400774 A EP99400774 A EP 99400774A EP 99400774 A EP99400774 A EP 99400774A EP 0948021 B1 EP0948021 B1 EP 0948021B1
Authority
EP
European Patent Office
Prior art keywords
compartments
break
circuit breaker
balanced
multipolar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP99400774A
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German (de)
French (fr)
Other versions
EP0948021A1 (en
Inventor
Alain Simond
Jean-Luc Evrard
Patrick Lenco
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.)
Legrand SNC
Legrand France SA
Original Assignee
Legrand SA
Legrand SNC
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Publication of EP0948021A1 publication Critical patent/EP0948021A1/en
Application granted granted Critical
Publication of EP0948021B1 publication Critical patent/EP0948021B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/20Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/226Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/1009Interconnected mechanisms
    • H01H71/1027Interconnected mechanisms comprising a bidirectional connecting member actuated by the opening movement of one pole to trip a neighbour pole
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/1009Interconnected mechanisms
    • H01H2071/1036Interconnected mechanisms having provisions for four or more poles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/12Automatic release mechanisms with or without manual release
    • H01H71/14Electrothermal mechanisms
    • H01H71/16Electrothermal mechanisms with bimetal element
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms
    • H01H71/12Automatic release mechanisms with or without manual release
    • H01H71/24Electromagnetic mechanisms
    • H01H71/2463Electromagnetic mechanisms with plunger type armatures

Definitions

  • the present invention relates generally to multipole differential circuit breakers.
  • these multipolar differential circuit breakers comprise, on the one hand, a certain number of breaking compartments, on a per pole basis, and, on the other hand, for all of these breaking compartments, a compartment of differential protection.
  • It can for example be as bipolar differential circuit breakers as four-pole differential circuit breakers.
  • Each of the breaking compartments is associated with an input terminal and an output terminal, intervening therebetween with switch contacts, at least one of which is movable under the control of a mechanism commonly known as a "lock”. ".
  • this mechanism is itself under the control of at least one triggering member, such as for example a magnetic triggering member and / or a triggering member. thermal tripping, able to cause if necessary a command in opening of the switch contacts.
  • the pole is a neutral
  • a neutral which is for example the case when, in the case of a four-pole differential circuit breaker, such a neutral is associated with three phases, no triggering element is usually provided for, the corresponding mechanism being then simply under the control of the mechanism of any of the phases.
  • the differential protection compartment is equipped with a fault detector capable of delivering a differential current in response.
  • a fault capable of delivering a differential current in response.
  • a sensitive relay served by the fault detector
  • a mechanism also commonly called “lock”, able to intervene in tripping on the mechanism of at least one of the breaking compartments.
  • the present invention is more particularly the case where the multipole differential circuit breaker concerned is what is called a modular device.
  • the housing of such a modular device comprises, parallel to each other, two main faces, and its width, equal to the distance separating from one another these main faces, is a multiple of a given basic module common to all modular devices of the same type.
  • the breaking compartments are usually arranged parallel to each other, and they all have the same width equal to the basic module.
  • the differential protection compartment also extends most often to date parallel to the breaking compartments, being in practice attached to them at one or the other end of the alignment they form, and its width is, it, equal to three times the basic module.
  • the overall width of a four-pole differential circuit breaker for example is most often equal to seven times the basic module.
  • each of the breaking compartments remains equal to the basic module, and the differential protection compartment is distributed longitudinally between these breaking compartments, all happening as if the volume available inside the housing was shared. in two in a plane perpendicular to both the main faces of this housing and its attachment face, a portion of this volume being fragmented transversely between the various breaking compartments while the other is occupied longitudinally by the differential protection compartment .
  • the axis of the magnetic tripping member of each of the breaking compartments extends, in practice, and almost necessarily perpendicular to the fixing face of the housing, and the grip of this organ magnetic tripping being greater along this axis than transversely thereto, the available volume along the same axis for the arc extinguishing chamber usually associated with the switch contacts is reduced accordingly, to the detriment of the power cut.
  • differential protection compartment extends longitudinally over the entire width of the housing, transversely relative to the breaking compartments, the electrical connections to be provided between the many internal components of these various compartments are particularly complicated and difficult to achieve.
  • the present invention generally relates to an arrangement which, while leading to comparable compactness, advantageously avoids these disadvantages.
  • a multipolar differential circuit breaker of the kind comprising, in the same housing of width L equal to a multiple n of a basic module M, on the one hand, an even number n 1 of compartments of cutoff of the same width l 1 , all of which extend parallel to each other, and to each of which are associated an input terminal and an output terminal, and, secondly, a differential protection compartment,
  • the party is taken, according to the invention, to reduce the width of the breaking compartments to a fraction of the basic module.
  • the arrangement according to the invention also advantageously makes it possible, for at least some of the constituents to be used, to take advantage economically of embodiments already known and tested in the same field.
  • the mechanism of the cutoff compartments that is to say the "lock” of these, can advantageously be of the type of the one , for a bipolar phase neutral circuit breaker of width equal to the basic module, was the subject of the French patent filed on August 4, 1994 under No. 94 09691 and published under No. 2,723,470.
  • the mechanism of the differential protection compartment may advantageously be of the type which, for a neutral phase differential release device of overall width equal to twice the basic module, was the subject of the French patent filed May 31, 1994 under No. 94 06585 and published under No. 2,720,548.
  • the axis of the magnetic tripping member of the cutoff compartments can advantageously extend parallel to the fixing face of the housing, to the benefit of the available space for the arc extinguishing chamber to the right of this magnetic tripping member, and therefore to the benefit of the breaking capacity.
  • the coupling winding for the differential protection compartment is inserted between the input terminal and the magnetic trip.
  • the available volume downstream of the magnetic tripping member can advantageously be used full for the only arc extinguishing chamber, to the benefit, again, of the breaking capacity.
  • the coupling winding to the differential protection compartment is connected to the magnetic tripping member by a return section, which is parallel to the the axis of this magnetic tripping member, and which, for all the cutoff compartments, extends to the same level.
  • US 5,510,759 shows a device according to the preamble of claim 1.
  • a multipole differential circuit breaker 10, 10 ' according to the invention comprises, in the same case, in the same housing 11, 11' of width L equal to a multiple n of one base module M, on the one hand, an even number n 1 of cutoff compartments 12 of the same width l 1 , all of which extend parallel to each other, and to each of which are associated an input terminal 13E and an output terminal 13S, and, on the other hand, a differential protection compartment 15.
  • this multipolar differential circuit breaker 10, 10 ' is of the modular type.
  • its housing 11, 11 comprises, parallel to each other, two main faces 17, between which is measured its width L.
  • the multipole differential circuit breaker 10, 10 'according to the invention is intended to be attached to a support rail, not shown.
  • Its housing 11, 1 1 comprises, for this purpose, on its edge, that is to say perpendicular to its main faces 17, an attachment face 18, which, for example, and as visible in Figure 1 , comprises, in its middle part, a notch 19, by which it is adapted to be engaged on the support rail concerned, and by means of which intervene, for a snap on this support rail, one or more movable latches 20 .
  • the housing 11, 11 comprises, on its edge, in addition to its attachment face 18, on the one hand, two lateral faces 21E, 21S, which are perpendicular both to this fixing face 18 and to the main faces 17, and on which open, respectively, the input terminals 13E and the output terminals 13S, for the wiring of the cutoff compartments 12, and, on the other hand, a front face 22, which extends generally parallel to the fixing face 18, with, however, protruding in its central part, a boss 24 on which is pivotally mounted an operating lever 25 at the disposal of the user, and from which are accessible , for their tightening or loosening, the input terminals 13E and the output terminals 13S.
  • the cutoff compartments 12 extend from one of the lateral faces 21E, 21S to the other, parallel to the main faces 17.
  • the input terminals 13E, which are all aligned with each other, on the one hand, and, in correspondence therewith, the output terminals 13S, which are also all aligned with each other, with each other, on the other hand, are distributed at a regular pitch equal to the basic module M from one to the other of the main faces 17, so that, perpendicular to these main faces 17, they are all offset relative to the breaking compartment 12 to which they are respectively associated.
  • those of these input terminals 13E or 13S output which are at the ends of the corresponding alignments are at a distance from the main faces 17 of the housing 11, 11 'equal to half of the base module M.
  • the input terminals 13E and the output terminals 13S have been schematized, in particular, by their clamping and loosening axis A 1 , and, for the sake of simplicity, it is relative to to this axis of clamping and loosening A 1 , itself simply materialized by its trace in this Figure 2, was appreciated their implementation.
  • the multipole differential circuit breaker according to the invention is, for example, a four-pole differential circuit breaker 10.
  • the number n 1 of cutoff compartments 12 that it comprises is equal to four.
  • the width l 2 of the differential protection compartment 15 is equal to twice the width l 1 of the breaking compartments 12.
  • the cutoff compartments 12 are, in this case, grouped together in pairs P, P ', at the rate of a pair P of two cutoff compartments 12 of a first side of the differential protection compartment 15, and a pair P 'of two switching compartments 1 2 on the side of this differential protection compartment 15 opposite the previous one, so that the differential protection compartment 15 occupies the central part of the interior volume of the housing 11 while the switching compartments 12 occupy the side parts of this interior volume.
  • the internal organization of the four-pole differential circuit breaker 10 according to the invention is then advantageously symmetrical, and the offset of the input terminals 13E and 13S output relative to the switching compartment 12 with which they are associated, which is all the more important that this breaking compartment 12 is remote from the differential protection compartment 15, is advantageously minimized.
  • the number n is then equal to four.
  • All the cleavage compartments 12 have generally the same constitution.
  • this mechanism 35 is itself under the control of the operating lever 25 at the disposal of the user.
  • a coupling winding 36 is also provided for each of the breaking compartments 12, which is also inserted between their input terminal 13E and their output terminal 13S, and which intervenes in the differential protection compartment 15.
  • these input terminals 13E and 13S output terminals also comprise a moving part 38E, 38S, in the form of a stirrup, for clamping an electric cable.
  • the magnetic tripping member 30 comprises a winding 40 arranged around a core 41, for the control of a striker 42 able to act on the mechanism 35.
  • the axis A 2 of this magnetic trigger member 30, that is to say the axis A 2 in which its striker 42 acts, extends parallel to both the main faces 17 of the housing 11 as well as the attachment face 18 thereof.
  • this arc extinguishing chamber 43 extends between the magnetic tripping member 30 and the fixing face 18 of the housing 11.
  • Its input plate 44 belongs to the support 45 of the magnetic tripping member 30, and its output plate 46 belongs to a metal part 47 to which also belongs the fixed part 37S of the output terminal 13S.
  • This metal part 47 serves jointly to support the thermal tripping member 33, which is in this case a bimetallic strip, and, by a braid 48, this thermal tripping member 33 is connected to the movable contact 32.
  • the winding 40 of the magnetic tripping member 30 is formed by a wire of rectangular cross section whose largest dimension is parallel to the axis A 2 of this magnetic tripping member 30, FIG.
  • the mechanism 35 is of the type described in the patent. No. 94 06585 already mentioned above, and in this regard, the latter may be considered an integral part of this description.
  • each of the cutoff compartments 12 comprises, overall, a contact support 49, 49 ', which is rotatably mounted around a axis A 3 fixed relative to the housing 11, and on which the movable contact 32 is itself rotatably mounted around the same axis A 3 , a fastening piece 50, 50 ', which is also rotatably mounted around this A fixed axis A 3 , and an actuator 52, 52 ', which, via the operating lever 25, is available to the user, according to the arrangements described in more detail later, and which, by via a linkage 53, 53 ', also detailed later, and under the control of the attachment piece 50, 50', is adapted to move the contact support 49, 49 'from a trigger position , for which the movable contact 32 is in the open position, at a distance from the fixed contact 31, and a posi switching engagement, for which, in contrast, this movable contact 32 is in the
  • the fixed axis A 3 fixed to the movable contact 32, to the contact support 49, 49 ', and to the attachment piece 50, 50' extends transversely, depending on the width of the cutoff compartment 12 concerned. .
  • the two cutoff compartments 12 of the same pair P, P ' have in common one and the same contact support 49, 49', the same attachment piece 50, 50 ', and the same operating member 52, 52 '.
  • the contact support 49, 49 ' common to the two switching compartments 12 of the same pair P, P' form, with the corresponding movable contacts 32, the organs elastic members 55 associated with these movable contacts 32, and the attachment piece 50, 50 ', a unitary subassembly 56, 56'.
  • Such a unitary subassembly 56 is shown, in isolation, in FIGS. 8 and 9, for the pair P of cutoff compartments 12.
  • the fastening piece 50, 50 'of the subassemblies unit assemblies 56, 56 ' comprises, in particular, an attachment nose 57, for the intervention of the linkage 53, 53', an insulating wall 58, for the intervention of the striker 42 of one or on the other of the two magnetic triggering members 30 concerned, lugs 59, for the intervention of one or the other of the two thermal release members 33 also concerned, and parallel to the fixed axis A 3 , an arm 60, which is perforated axially with a bore 61, and which, as will be described later, is used here for the intervention of the differential protection compartment 15.
  • the operating member 52, 52 'associated with the two cutoff compartments 12 of the same pair P, P' comprising, in the housing 11, a hub 62, 62 'by which it is rotatably mounted on this housing 11, the two hubs 62, 62 'corresponding respectively to two pairs P, P' of cutoff compartments 12 are set in rotation relative to each other.
  • these two hubs 62, 62 ' are aligned with each other, with interlocking means 63, 63' between them.
  • the hub 62 ' comprises a section of reduced diameter 64 through which it is able to engage in a bore 65 of the hub 62, and the clutching means 63, 63' are formed, on the one hand, by two recesses 63, which are recessed on the inner surface of the bore 65 of the hub 62 in diametrically opposite positions with respect to each other, and, on the other hand, by two bosses 63 ', which, complementary to the clearances 63, and arranged in correspondence therewith, protrude over the reduced diameter section 64 of the hub 62'.
  • the operating member 52, 52 'associated with the two cutoff compartments 12 of the same pair P, P' having a finger 67, 67 ', which, integral with the hub 62, 62' corresponding, protrudes out of the 11, the two fingers 67, 67 'corresponding respectively to two pairs P, P' of cutoff compartments 12 are, outside the housing 11, connected to one another by the same bar 68, assembly constituting the joystick 25 available to the user.
  • the linkage 53, 53 'associated with each pair P, P' of cutoff compartments 12 comprises, on the one hand , a pawl 70, 70 ', which is rotatably mounted on the corresponding contact support 49, 49', about an axis parallel to the axis A 3 , at a distance from the latter, and which, by means of a spout, hooking not visible in the figures, is adapted to cooperate in engagement with the latching nose 57 of the attachment part 50, 50 'corresponding, and, secondly, a rod 72, 72', which is articulated at the hub 62, 62 'of the actuating member 52, 52' corresponding to the favor of an ear 73, 73 'of the hub 62, 62', and about an axis which, of course, is him also parallel to the axis A 3 .
  • the elastic opening means 54, 54 'associated with the contact support 49, 49' of the cutoff compartments 12 are compression springs.
  • the differential protection compartment 15 is equipped with a fault detector 75 capable of delivering a differential current in response to a the fault, of a sensitive relay 76, which is served by this fault detector 75, a trigger lever 77, which, rotatably mounted about an axis A 4 fixed relative to the housing 11, comprises an arm 78 on which can act the sensitive relay 76, and an actuating lever 79, which, rotatably mounted about a fixed axis A 5 relative to the housing 11 and distinct from the previous fixed axis A 4 , comprises an arm 80 by which, for its intervention on the mechanism 35 of the cutoff compartments 12, it can act on another piece 81 which will be described later.
  • the fault detector 75 comprises, in practice, a torus 82 on which are wound on the one hand, a primary, which, for each of the breaking compartments 12, comprises at least one coupling winding 36 from this breaking compartment 12, and, secondly, a secondary, which is not visible in the figures, and to which is connected the sensitive relay 76.
  • the release lever 77 and the actuating lever 79 also form, with the part 81, in this embodiment, a unitary subassembly 83, which constitutes the mechanism, or "lock,” of the differential protection compartment. 15.
  • these axes A 4 , A 5 are therefore parallel to the fixing face 18 of the housing 11 and perpendicular to the main faces 17 thereof.
  • the axis A 5 that is to say the axis about which is rotatably mounted the actuating lever 79 of the differential protection compartment 15, is in the alignment of the axis A 3 of the contact supports 49, 49 'of the switching compartments 12.
  • the axis A 6 of the torus 82 of the fault detector 75 of the differential protection compartment 15 extends substantially perpendicularly to the fixing face 18 of the housing 11.
  • the coupling winding 36 participating in the constitution of the primary of the fault detector 75 is inserted between the input terminal 13E and the magnetic trip device 30 of such a breaking compartment 12.
  • this coupling winding 36 intervenes immediately downstream of the input terminal 13E and immediately upstream of the corresponding input of the magnetic trip member 30.
  • the coupling winding 36 participating in the constitution of the primary of the fault detector 75 is connected to the magnetic tripping member 30 by a return section 85, which is parallel to the axis A 2 of this magnetic triggering member 30, and which, for all of the cutoff compartments 12, extends to the same level, on the side of the organ magnetic tripping 30 opposite to that which extends the arc extinguishing chamber 43 associated.
  • the part 81 belonging to the unitary subassembly 83 which constitutes the mechanism of the differential protection compartment 15 is a crankshaft, which is rotatably mounted about the same axis A 5 fixed that the actuating lever 79, and which has, laterally, in eccentric position with respect to this fixed axis A 5 , two fingers 87, 87 '.
  • the part 81 forming a crankshaft comprises a hollow hub 88, in which is housed the actuating lever 79, and which is perforated with a recess 89, and the arm 80 of the operating lever 79 extends to the right of the portion of this recess 89, for intervention on the piece 81, and, by the latter, on the attachment piece 50, 50 'of the cutoff compartments 12.
  • Figure 15 illustrates, alternatively, the application of the invention to a bipolar differential circuit breaker 10 '.
  • the width L of the housing 11 'corresponding is then equal to 2M.
  • n is then equal to two.
  • differential protection compartment at one or the other of the ends. of the alignment formed by the breaking compartments.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Electronic Switches (AREA)
  • Control Of Eletrric Generators (AREA)
  • Retarders (AREA)
  • Push-Button Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Oscillators With Electromechanical Resonators (AREA)

Abstract

The modules are placed side by side allowing easy wiring , with the width of the switching modules based on the distance between wiring inputs.

Description

La présente invention concerne d'une manière générale les disjoncteurs différentiels multipolaires.The present invention relates generally to multipole differential circuit breakers.

Par définition, ces disjoncteurs différentiels multipolaires comportent, d'une part, un certain nombre de compartiments de coupure, à raison d'un par pôle, et, d'autre part, pour l'ensemble de ces compartiments de coupure, un compartiment de protection différentielle.By definition, these multipolar differential circuit breakers comprise, on the one hand, a certain number of breaking compartments, on a per pole basis, and, on the other hand, for all of these breaking compartments, a compartment of differential protection.

Il peut donc par exemple s'agir aussi bien de disjoncteurs différentiels bipolaires que de disjoncteurs différentiels tétrapolaires.It can for example be as bipolar differential circuit breakers as four-pole differential circuit breakers.

A chacun des compartiments de coupure sont associées une borne d'entrée et une borne de sortie, avec, intervenant entre celles-ci, des contacts interrupteurs, dont l'un au moins est mobile sous le contrôle d'un mécanisme communément appelé "serrure".Each of the breaking compartments is associated with an input terminal and an output terminal, intervening therebetween with switch contacts, at least one of which is movable under the control of a mechanism commonly known as a "lock". ".

Lorsque le pôle correspondant est une phase, qu'il s'agit de protéger, ce mécanisme est lui-même sous le contrôle d'au moins un organe de déclenchement, tel que par exemple un organe de déclenchement magnétique et/ou un organe de déclenchement thermique, apte à provoquer si nécessaire une commande en ouverture des contacts interrupteurs.When the corresponding pole is a phase, which it is a question of protecting, this mechanism is itself under the control of at least one triggering member, such as for example a magnetic triggering member and / or a triggering member. thermal tripping, able to cause if necessary a command in opening of the switch contacts.

Lorsque le pôle est un neutre, ce qui est par exemple le cas lorsque, s'agissant d'un disjoncteur différentiel tétrapolaire, un tel neutre est associé à trois phases, aucun organe de déclenchement n'est par contre usuellement prévu, le mécanisme correspondant étant alors simplement sous le contrôle du mécanisme de l'une quelconque des phases.When the pole is a neutral, which is for example the case when, in the case of a four-pole differential circuit breaker, such a neutral is associated with three phases, no triggering element is usually provided for, the corresponding mechanism being then simply under the control of the mechanism of any of the phases.

En effet, qu'il s'agisse de phases ou qu'il s'agisse d'un neutre, les mécanismes des différents compartiments de coupure sont usuellement couplés entre eux, en sorte qu'une commande en ouverture de l'un quelconque d'entre eux provoque une commande de même type pour l'ensemble de ceux-ci.Indeed, whether it is phases or whether it is a neutral, the mechanisms of the different breaking compartments are usually coupled together, so that an opening command of any one of between them causes a command of the same type for all of them.

Corollairement, le compartiment de protection différentielle est équipé, lui, d'un détecteur de défaut apte à délivrer un courant différentiel en réponse à un défaut, d'un relais sensible desservi par ce détecteur de défaut, et d'un mécanisme, lui aussi communément appelé "serrure", apte à intervenir en déclenchement sur le mécanisme de l'un au moins des compartiments de coupure.As a corollary, the differential protection compartment is equipped with a fault detector capable of delivering a differential current in response. a fault, a sensitive relay served by the fault detector, and a mechanism, also commonly called "lock", able to intervene in tripping on the mechanism of at least one of the breaking compartments.

La présente invention vise plus particulièrement le cas où le disjoncteur différentiel multipolaire concerné constitue ce qu'il est convenu d'appeler un appareil modulaire.The present invention is more particularly the case where the multipole differential circuit breaker concerned is what is called a modular device.

Ainsi qu'on le sait, le boîtier d'un tel appareil modulaire comporte, parallèlement l'une à l'autre, deux faces principales, et sa largeur, égale à la distance séparant l'une de l'autre ces faces principales, est un multiple d'un module de base donné commun à l'ensemble des appareils modulaires de même type.As is known, the housing of such a modular device comprises, parallel to each other, two main faces, and its width, equal to the distance separating from one another these main faces, is a multiple of a given basic module common to all modular devices of the same type.

Ces appareils modulaires sont ainsi avantageusement à même d'être disposés jointivement côte à côte sur un même rail de support.These modular devices are thus advantageously able to be arranged contiguously side by side on the same support rail.

Ils sont alors rapportés sur celui-ci par une face de fixation qui appartient à la tranche de leur boîtier.They are then reported on it by a fixing face which belongs to the edge of their housing.

Dans les disjoncteurs différentiels multipolaires relevant d'une telle conception modulaire, les compartiments de coupure sont usuellement disposés parallèlement les uns aux autres, et ils ont tous une même largeur égale au module de base.In the multipolar differential circuit breakers of such a modular design, the breaking compartments are usually arranged parallel to each other, and they all have the same width equal to the basic module.

Corollairement, le compartiment de protection différentielle s'étend lui aussi le plus souvent à ce jour parallèlement aux compartiments de coupure, en étant en pratique accolé à ceux-ci à l'une ou l'autre des extrémités de l'alignement qu'ils forment, et sa largeur est, elle, égale à trois fois le module de base.As a corollary, the differential protection compartment also extends most often to date parallel to the breaking compartments, being in practice attached to them at one or the other end of the alignment they form, and its width is, it, equal to three times the basic module.

Il en résulte, qu'à ce jour, la largeur globale d'un disjoncteur différentiel tétrapolaire par exemple est le plus souvent égale à sept fois le module de base.As a result, to date, the overall width of a four-pole differential circuit breaker for example is most often equal to seven times the basic module.

Il a cependant été proposé une réalisation dans laquelle cette largeur globale est ramenée à quatre fois le module de base, au bénéfice, donc, d'une plus grande compacité pour l'ensemble.However, it has been proposed an embodiment in which this overall width is reduced to four times the basic module, to the benefit, therefore, of greater compactness for the whole.

Suivant cette réalisation, la largeur de chacun des compartiments de coupure reste égale au module de base, et le compartiment de protection différentielle est réparti longitudinalement entre ces compartiments de coupure, tout se passant comme si le volume disponible à l'intérieur du boîtier était partagé en deux suivant un plan perpendiculaire à la fois aux faces principales de ce boîtier et à sa face de fixation, une partie de ce volume étant fragmentée transversalement entre les divers compartiments de coupure tandis que l'autre est occupée longitudinalement par le compartiment de protection différentielle.According to this embodiment, the width of each of the breaking compartments remains equal to the basic module, and the differential protection compartment is distributed longitudinally between these breaking compartments, all happening as if the volume available inside the housing was shared. in two in a plane perpendicular to both the main faces of this housing and its attachment face, a portion of this volume being fragmented transversely between the various breaking compartments while the other is occupied longitudinally by the differential protection compartment .

Mais, dans cette réalisation, l'axe de l'organe de déclenchement magnétique de chacun des compartiments de coupure s'étend, en pratique, et quasi nécessairement, perpendiculairement à la face de fixation du boîtier, et, l'emprise de cet organe de déclenchement magnétique étant plus grande suivant cet axe que transversalement à celui-ci, le volume disponible suivant ce même axe pour la chambre d'extinction d'arc usuellement associée aux contacts interrupteurs s'en trouve réduit d'autant, au détriment du pouvoir de coupure.But in this embodiment, the axis of the magnetic tripping member of each of the breaking compartments extends, in practice, and almost necessarily perpendicular to the fixing face of the housing, and the grip of this organ magnetic tripping being greater along this axis than transversely thereto, the available volume along the same axis for the arc extinguishing chamber usually associated with the switch contacts is reduced accordingly, to the detriment of the power cut.

En outre, du fait que le compartiment de protection différentielle s'étend longitudinalement sur toute la largeur du boîtier, transversalement par rapport aux compartiments de coupure, les liaisons électriques à assurer entre les nombreux composants internes de ces divers compartiments sont particulièrement compliquées et malaisées à réaliser.In addition, because the differential protection compartment extends longitudinally over the entire width of the housing, transversely relative to the breaking compartments, the electrical connections to be provided between the many internal components of these various compartments are particularly complicated and difficult to achieve.

La présente invention a d'une manière générale pour objet une disposition qui, tout en conduisant à une compacité comparable, permet avantageusement d'éviter ces inconvénients.The present invention generally relates to an arrangement which, while leading to comparable compactness, advantageously avoids these disadvantages.

De manière plus précise, elle a pour objet un disjoncteur différentiel multipolaire du genre comportant, dans un même boîtier de largeur L égale à un multiple n d'un module de base M, d'une part, un nombre pair n1 de compartiments de coupure de même largeur l1, qui s'étendent tous parallèlement les uns aux autres, et à chacun desquels sont associées une borne d'entrée et une borne de sortie, et, d'autre part, un compartiment de protection différentielle, ce disjoncteur différentiel multipolaire étant d'une manière générale caractérisé en ce que, conjointement, le compartiment de protection différentielle s'étend parallèlement aux compartiments de coupure, et, abstraction faite des épaisseurs de paroi inévitablement présentes, la largeur l1 des compartiments de coupure est sensiblement égale à la valeur suivante : l 1 = 2 M 3

Figure imgb0001

et la largeur l2 du compartiment de protection différentielle est au plus égale à la valeur suivante : l 2 = 1 2 . n 1 . l 1
Figure imgb0002
More specifically, it relates to a multipolar differential circuit breaker of the kind comprising, in the same housing of width L equal to a multiple n of a basic module M, on the one hand, an even number n 1 of compartments of cutoff of the same width l 1 , all of which extend parallel to each other, and to each of which are associated an input terminal and an output terminal, and, secondly, a differential protection compartment, this circuit breaker multipolar differential being of a in general, characterized in that, together, the differential protection compartment extends parallel to the breaking compartments, and, apart from the wall thicknesses inevitably present, the width l 1 of the breaking compartments is substantially equal to the following value: l 1 = two M 3
Figure imgb0001

and the width l 2 of the differential protection compartment is at most equal to the following value: l two = 1 two . not 1 . l 1
Figure imgb0002

Ainsi, le parti est pris, suivant l'invention, de réduire la largeur des compartiments de coupure à une fraction du module de base.Thus, the party is taken, according to the invention, to reduce the width of the breaking compartments to a fraction of the basic module.

Grâce à cette réduction, un compromis avantageux peut être trouvé entre, d'une part, l'obtention d'une bonne compacité, qui, en pratique, s'agissant d'un disjoncteur différentiel tétrapolaire, conduit, comme précédemment, à une largeur globale égale à quatre fois le module de base, et, d'autre part, le respect d'une relative simplicité de réalisation, le compartiment de protection différentielle restant classiquement parallèle aux compartiments de coupure, comme dans les réalisations les plus courantes.Thanks to this reduction, an advantageous compromise can be found between, on the one hand, obtaining a good compactness, which, in practice, being a four-pole differential circuit breaker, leads, as previously, to a width overall equal to four times the basic module, and, secondly, the respect of a relative simplicity of implementation, the differential protection compartment remaining classically parallel to the breaking compartments, as in the most common achievements.

Indépendamment de la réduction de largeur obtenue, la disposition suivant l'invention permet en outre, avantageusement, pour certains au moins des constituants à mettre en oeuvre, de tirer économiquement parti de réalisations déjà connues et éprouvées dans le même domaine.Independently of the reduction in width obtained, the arrangement according to the invention also advantageously makes it possible, for at least some of the constituents to be used, to take advantage economically of embodiments already known and tested in the same field.

C'est ainsi, par exemple, que, grâce à la disposition suivant l'invention, le mécanisme des compartiments de coupure, c'est-à-dire la "serrure" de ceux-ci, peut avantageusement être du type de celui qui, pour un disjoncteur bipolaire phase neutre de largeur égale au module de base, a fait l'objet du brevet français déposé le 4 août 1994 sous le No 94 09691 et publié sous le No 2 723 470.It is thus, for example, that, thanks to the arrangement according to the invention, the mechanism of the cutoff compartments, that is to say the "lock" of these, can advantageously be of the type of the one , for a bipolar phase neutral circuit breaker of width equal to the basic module, was the subject of the French patent filed on August 4, 1994 under No. 94 09691 and published under No. 2,723,470.

C'est ainsi, également, que, grâce à la disposition suivant l'invention, le mécanisme du compartiment de protection différentielle, c'est-à-dire la "serrure" de celui-ci, peut avantageusement être du type de celui qui, pour un dispositif de déclenchement différentiel phase neutre de largeur globale égale à deux fois le module de base, a fait l'objet du brevet français déposé le 31 mai 1994 sous le No 94 06585 et publié sous le No 2 720 548.Thus, also, thanks to the arrangement according to the invention, the mechanism of the differential protection compartment, that is to say the "lock" thereof, may advantageously be of the type which, for a neutral phase differential release device of overall width equal to twice the basic module, was the subject of the French patent filed May 31, 1994 under No. 94 06585 and published under No. 2,720,548.

Quoi qu'il en soit, grâce à la disposition suivant l'invention, l'axe de l'organe de déclenchement magnétique des compartiments de coupure peut avantageusement s'étendre parallèlement à la face de fixation du boîtier, au bénéfice de la place disponible pour la chambre d'extinction d'arc au droit de cet organe de déclenchement magnétique, et, donc, au bénéfice du pouvoir de coupure.Anyway, thanks to the arrangement according to the invention, the axis of the magnetic tripping member of the cutoff compartments can advantageously extend parallel to the fixing face of the housing, to the benefit of the available space for the arc extinguishing chamber to the right of this magnetic tripping member, and therefore to the benefit of the breaking capacity.

Préférentiellement, pour l'un au moins des compartiments de coupure, et, en pratique, pour chacun de ceux-ci, l'enroulement de couplage à destination du compartiment de protection différentielle est inséré entre la borne d'entrée et l'organe de déclenchement magnétique.Preferably, for at least one of the breaking compartments, and in practice for each of them, the coupling winding for the differential protection compartment is inserted between the input terminal and the magnetic trip.

Il intervient donc en amont de l'organe de déclenchement magnétique.It therefore intervenes upstream of the magnetic tripping member.

Ainsi, le volume disponible en aval de l'organe de déclenchement magnétique peut avantageusement être utilisé à plein pour la seule chambre d'extinction d'arc, au bénéfice, là encore, du pouvoir de coupure.Thus, the available volume downstream of the magnetic tripping member can advantageously be used full for the only arc extinguishing chamber, to the benefit, again, of the breaking capacity.

Préférentiellement, également, suivant un développement de cette disposition, pour chacun des compartiments de coupure, l'enroulement de couplage à destination du compartiment de protection différentielle est relié à l'organe de déclenchement magnétique par un tronçon de retour, qui est parallèle à l'axe de cet organe de déclenchement magnétique, et qui, pour l'ensemble des compartiments de coupure, s'étend à un même niveau.Preferably, also, according to a development of this arrangement, for each of the breaking compartments, the coupling winding to the differential protection compartment is connected to the magnetic tripping member by a return section, which is parallel to the the axis of this magnetic tripping member, and which, for all the cutoff compartments, extends to the same level.

La compacité de l'ensemble s'en trouve avantageusement facilitée, au bénéfice d'une utilisation optimale du volume disponible dans le boîtier. Le document US 5 510 759 montre un dispositif selon le préambule de la revendication 1.The compactness of the assembly is advantageously facilitated, to the benefit of optimal use of the volume available in the housing. US 5,510,759 shows a device according to the preamble of claim 1.

Les caractéristiques et avantages de l'invention ressortiront d'ailleurs de la description qui va suivre, à titre d'exemple, en référence aux dessins schématiques annexés sur lesquels :

  • la figure 1 est une vue en perspective d'un disjoncteur différentiel multipolaire suivant l'invention ;
  • la figure 2 est une représentation schématique, en élévation, de ce disjoncteur différentiel multipolaire, pour l'illustration de son organisation interne ;
  • la figure 3 est une vue en perspective de l'ensemble des composants internes de ce disjoncteur différentiel multipolaire, vus du côté des bornes de sortie de celui-ci ;
  • la figure 4 est une autre vue en perspective de ces composants, vus du côté des bornes d'entrée ;
  • la figure 5 est, à échelle différente, et suivant la flèche V de la figure 3, une vue de côté de l'ensemble des composants internes de l'un quelconque des compartiments de coupure du disjoncteur différentiel multipolaire suivant l'invention ;
  • la figure 6 est une vue partielle en coupe axiale d'un de ces composants, suivant la ligne VI-VI de la figure 5 ;
  • la figure 7 est un schéma illustrant le montage interne d'un tel compartiment de coupure et son couplage au compartiment de protection différentielle associé ;
  • la figure 8 est une vue en perspective d'un sous-ensemble unitaire présent au sein d'un tel compartiment de coupure, vu du côté des bornes d'entrée ;
  • la figure 9 est une autre vue en perspective de ce sous-ensemble unitaire, vu du côté des bornes de sortie ;
  • la figure 10 est une vue en perspective d'un sous-ensemble unitaire présent au sein du compartiment de protection différentielle associé, vu du côté des bornes de sortie ;
  • la figure 11 est une vue en perspective de ce sous-ensemble unitaire, vu du côté des bornes d'entrée ;
  • la figure 12 est une vue en perspective d'une des pièces que comporte ce sous-ensemble unitaire, représentée isolément et vue du côté des bornes de sortie ;
  • la figure 1 3 est une vue en perspective de deux moyeux assurant un couplage mécanique entre les divers compartiments de coupure du disjoncteur différentiel multipolaire suivant l'invention ;
  • la figure 14 reprend, à échelle supérieure, le détail d'un de ces moyeux repéré par un encart XIV sur la figure 13 ;
  • la figure 15 est une représentation schématique qui, analogue à celle de la figure 2, se rapporte à un autre disjoncteur différentiel multipolaire suivant l'invention.
The characteristics and advantages of the invention will emerge from the following description, by way of example, with reference to the appended diagrammatic drawings in which:
  • Figure 1 is a perspective view of a multipole differential circuit breaker according to the invention;
  • Figure 2 is a schematic representation, in elevation, of this multipolar differential circuit breaker, for the illustration of its internal organization;
  • Figure 3 is a perspective view of all of the internal components of this multipole differential circuit breaker, seen from the side of the output terminals thereof;
  • Figure 4 is another perspective view of these components seen from the input terminal side;
  • Figure 5 is a different scale, and along the arrow V of Figure 3, a side view of all the internal components of any of the breaking compartments of the multipole differential circuit breaker according to the invention;
  • Figure 6 is a partial view in axial section of one of these components, along the line VI-VI of Figure 5;
  • Figure 7 is a diagram illustrating the internal mounting of such a breaking compartment and its coupling to the associated differential protection compartment;
  • Figure 8 is a perspective view of a unitary subassembly present within such a breaking compartment, seen from the side of the input terminals;
  • Figure 9 is another perspective view of this unitary subassembly, seen from the side of the output terminals;
  • Fig. 10 is a perspective view of a unitary subassembly present within the associated differential protection compartment as viewed from the output terminal side;
  • Figure 11 is a perspective view of this unitary subassembly, seen from the side of the input terminals;
  • Figure 12 is a perspective view of one of the parts that comprises this unit subassembly, shown in isolation and viewed from the side of the output terminals;
  • Figure 1 3 is a perspective view of two hubs providing mechanical coupling between the various breaking compartments of the multipole differential circuit breaker according to the invention;
  • Figure 14 shows, on a larger scale, the detail of one of these hubs marked by a box XIV in Figure 13;
  • Figure 15 is a schematic representation which, similar to that of Figure 2, relates to another differential circuit breaker multipole according to the invention.

Tel qu'illustré sur ces figures, et de manière connue en soi, un disjoncteur différentiel multipolaire 10, 10' suivant l'invention comporte, globalement, dans un même boîtier 11, 11' de largeur L égale à un multiple n d'un module de base M, d'une part, un nombre pair n1 de compartiments de coupure 12 de même largeur l1, qui s'étendent tous parallèlement les uns aux autres, et à chacun desquels sont associées une borne d'entrée 13E et une borne de sortie 13S, et, d'autre part, un compartiment de protection différentielle 15.As illustrated in these figures, and in a manner known per se, a multipole differential circuit breaker 10, 10 'according to the invention comprises, in the same case, in the same housing 11, 11' of width L equal to a multiple n of one base module M, on the one hand, an even number n 1 of cutoff compartments 12 of the same width l 1 , all of which extend parallel to each other, and to each of which are associated an input terminal 13E and an output terminal 13S, and, on the other hand, a differential protection compartment 15.

En pratique, ce disjoncteur différentiel multipolaire 10, 10' est de type modulaire.In practice, this multipolar differential circuit breaker 10, 10 'is of the modular type.

Autrement dit, son boîtier 11, 11' comporte, parallèlement l'une à l'autre, deux faces principales 17, entre lesquelles est mesurée sa largeur L.In other words, its housing 11, 11 'comprises, parallel to each other, two main faces 17, between which is measured its width L.

En pratique, également, le disjoncteur différentiel multipolaire 10, 10' suivant l'invention est destiné à être rapporté sur un rail de support, non représenté.In practice, also, the multipole differential circuit breaker 10, 10 'according to the invention is intended to be attached to a support rail, not shown.

Son boîtier 11, 1 1 ' comporte, pour ce faire, sur sa tranche, c'est-à-dire perpendiculairement à ses faces principales 17, une face de fixation 18, qui, par exemple, et tel que visible sur la figure 1, comporte, dans sa partie médiane, une encoche 19, par laquelle il est apte à être engagé sur le rail de support concerné, et à la faveur de laquelle interviennent, pour un encliquetage sur ce rail de support, un ou plusieurs verrous mobiles 20.Its housing 11, 1 1 'comprises, for this purpose, on its edge, that is to say perpendicular to its main faces 17, an attachment face 18, which, for example, and as visible in Figure 1 , comprises, in its middle part, a notch 19, by which it is adapted to be engaged on the support rail concerned, and by means of which intervene, for a snap on this support rail, one or more movable latches 20 .

Les dispositions correspondantes étant bien connues par elles-mêmes, et ne relevant pas de la présente invention, elles ne seront pas décrites plus en détail ici.The corresponding arrangements being well known in themselves, and not falling under the present invention, they will not be described in more detail here.

De manière également connue en soi, le boîtier 11, 11' comporte, sur sa tranche, outre sa face de fixation 18, d'une part, deux faces latérales 21E, 21S, qui sont perpendiculaires à la fois à cette face de fixation 18 et aux faces principales 17, et sur lesquelles débouchent, respectivement, les bornes d'entrée 13E et les bornes de sortie 13S, pour le câblage des compartiments de coupure 12, et, d'autre part, une face de façade 22, qui s'étend globalement parallèlement à la face de fixation 18, avec, toutefois, en saillie dans sa partie médiane, un bossage 24 sur lequel est montée pivotante une manette de manoeuvre 25 à la disposition de l'usager, et à partir de laquelle sont accessibles, pour leur serrage ou leur desserrage, les bornes d'entrée 13E et les bornes de sortie 13S.In a manner also known per se, the housing 11, 11 'comprises, on its edge, in addition to its attachment face 18, on the one hand, two lateral faces 21E, 21S, which are perpendicular both to this fixing face 18 and to the main faces 17, and on which open, respectively, the input terminals 13E and the output terminals 13S, for the wiring of the cutoff compartments 12, and, on the other hand, a front face 22, which extends generally parallel to the fixing face 18, with, however, protruding in its central part, a boss 24 on which is pivotally mounted an operating lever 25 at the disposal of the user, and from which are accessible , for their tightening or loosening, the input terminals 13E and the output terminals 13S.

Les compartiments de coupure 12 s'étendent d'une des faces latérales 21E, 21S à l'autre, parallèlement aux faces principales 17.The cutoff compartments 12 extend from one of the lateral faces 21E, 21S to the other, parallel to the main faces 17.

Suivant l'invention, et conjointement, le compartiment de protection différentielle 15 s'étend parallèlement aux compartiments de coupure 12, et, abstraction faite des épaisseurs de paroi inévitablement présentes, la largeur l1 des compartiments de coupure 12 est sensiblement égale à la valeur suivante : l 1 = 2 M 3

Figure imgb0003

et la largeur l2 du compartiment de protection différentielle 15 est au plus égale à la valeur suivante : l 2 = 1 2 . n 1 . l 1
Figure imgb0004
According to the invention, and together, the differential protection compartment 15 extends parallel to the breaking compartments 12, and, apart from the wall thicknesses inevitably present, the width l 1 of the cutoff compartments 12 is substantially equal to the value next : l 1 = two M 3
Figure imgb0003

and the width l 2 of the differential protection compartment 15 is at most equal to the following value: l two = 1 two . not 1 . l 1
Figure imgb0004

Préférentiellement, et cela est le cas dans les formes de réalisation représentées, abstraction faite des épaisseurs de paroi inévitablement présentes, la larguer l2 du compartiment de protection différentielle 15 est égale à la valeur suivante : l 2 = 1 2 . n 1 . l 1

Figure imgb0005
Preferably, and this is the case in the embodiments shown, apart from the wall thicknesses inevitably present, the jitter 1 2 of the differential protection compartment 15 is equal to the following value: l two = 1 two . not 1 . l 1
Figure imgb0005

Dans les formes de réalisation représentées, les bornes d'entrée 13E, qui sont toutes alignées les unes avec les autres, d'une part, et, en correspondance avec celles-ci, les bornes de sortie 13S, qui sont également toutes alignées les unes avec les autres, d'autre part, sont réparties à un pas régulier égal au module de base M de l'une à l'autre des faces principales 17, en sorte que, perpendiculairement à ces faces principales 17, elles sont toutes décalées par rapport au compartiment de coupure 12 auquel elles sont respectivement associées.In the illustrated embodiments, the input terminals 13E, which are all aligned with each other, on the one hand, and, in correspondence therewith, the output terminals 13S, which are also all aligned with each other, with each other, on the other hand, are distributed at a regular pitch equal to the basic module M from one to the other of the main faces 17, so that, perpendicular to these main faces 17, they are all offset relative to the breaking compartment 12 to which they are respectively associated.

En pratique, celles de ces bornes d'entrée 13E ou de sortie 13S qui sont aux extrémités des alignements correspondants sont à une distance des faces principales 17 du boîtier 11, 11' égale à la moitié du module de base M.In practice, those of these input terminals 13E or 13S output which are at the ends of the corresponding alignments are at a distance from the main faces 17 of the housing 11, 11 'equal to half of the base module M.

Dans la représentation schématique de la figure 2, les bornes d'entrée 13E et les borne de sortie 13S ont été schématisées, notamment, par leur axe de serrage et de desserrage A1, et, par mesure de simplicité, c'est par rapport à cet axe de serrage et de desserrage A1, lui-même simplement matérialisé par sa trace sur cette figure 2, qu'a été appréciée leur implantation.In the schematic representation of FIG. 2, the input terminals 13E and the output terminals 13S have been schematized, in particular, by their clamping and loosening axis A 1 , and, for the sake of simplicity, it is relative to to this axis of clamping and loosening A 1 , itself simply materialized by its trace in this Figure 2, was appreciated their implementation.

Dans la forme de réalisation plus particulièrement représentée sur les figures 1 à 14, le disjoncteur différentiel multipolaire suivant l'invention est, à titre d'exemple, un disjoncteur différentiel tétrapolaire 10.In the embodiment more particularly represented in FIGS. 1 to 14, the multipole differential circuit breaker according to the invention is, for example, a four-pole differential circuit breaker 10.

Autrement dit, le nombre n1 de compartiments de coupure 12 qu'il comporte est égal à quatre.In other words, the number n 1 of cutoff compartments 12 that it comprises is equal to four.

Par suite, la largeur l2 du compartiment de protection différentielle 15 est égale à deux fois la largeur l1 des compartiments de coupure 12.As a result, the width l 2 of the differential protection compartment 15 is equal to twice the width l 1 of the breaking compartments 12.

Cette largeur l2 du compartiment de protection différentielle 15 est donc égale à la valeur suivante : l 2 = 4 M 3

Figure imgb0006
This width l 2 of the differential protection compartment 15 is therefore equal to the following value: l two = 4 M 3
Figure imgb0006

Préférentiellement, et cela est le cas dans la forme de réalisation représentée, les compartiments de coupure 12 sont, dans ce cas, regroupés par paires P, P', à raison d'une paire P de deux compartiments de coupure 12 d'un premier côté du compartiment de protection différentielle 15, et d'une paire P' de deux compartiments de coupure 1 2 du côté de ce compartiment de protection différentielle 15 opposé au précédent, en sorte que le compartiment de protection différentielle 15 occupe la partie centrale du volume intérieur du boîtier 11 tandis que les compartiments de coupure 12 occupent les parties latérales de ce volume intérieur.Preferably, and this is the case in the embodiment shown, the cutoff compartments 12 are, in this case, grouped together in pairs P, P ', at the rate of a pair P of two cutoff compartments 12 of a first side of the differential protection compartment 15, and a pair P 'of two switching compartments 1 2 on the side of this differential protection compartment 15 opposite the previous one, so that the differential protection compartment 15 occupies the central part of the interior volume of the housing 11 while the switching compartments 12 occupy the side parts of this interior volume.

L'organisation interne du disjoncteur différentiel tétrapolaire 10 suivant l'invention est alors avantageusement symétrique, et le décalage des bornes d'entrée 13E et de sortie 13S par rapport au compartiment de coupure 12 auquel elles sont associées, qui est d'autant plus important que ce compartiment de coupure 12 est éloigné du compartiment de protection différentielle 15, est avantageusement minimisé.The internal organization of the four-pole differential circuit breaker 10 according to the invention is then advantageously symmetrical, and the offset of the input terminals 13E and 13S output relative to the switching compartment 12 with which they are associated, which is all the more important that this breaking compartment 12 is remote from the differential protection compartment 15, is advantageously minimized.

Il résulte de ce qui précède que la largeur L du boîtier 11 correspondant est alors égale à 4M.It follows from the foregoing that the width L of the housing 11 corresponding is then equal to 4M.

Autrement dit, le nombre n est alors égal à quatre.In other words, the number n is then equal to four.

La réalisation du boîtier 11 relevant de l'homme de l'art, ce boîtier 11 ne sera pas décrit dans tous ses détails ici.The realization of the housing 11 to those skilled in the art, this housing 11 will not be described in detail here.

Tel que schématisé sur la figure 2, et suivant des dispositions qui sont en pratique du même type que celles décrites dans le brevet français déposé le 18 mars 1995 sous le No 95 03042 et publié sous le No 2 731 837, il comporte, globalement, d'une part, cinq coquilles 26, 27, 28, qui s'étendent de l'une à l'autre des faces latérales 21E, 21S, et qui, dûment affrontées deux à deux, forment deux à deux les logements nécessaires aux bornes d'entrée 13E et aux bornes de sortie 13S, à savoir, deux coquilles d'extrémité 26, qui forment chacune respectivement les faces latérales 17, une coquille centrale 27, et, de part et d'autre de cette dernière, deux coquilles intermédiaires 28, et, d'autre part, pour la délimitation du compartiment de protection différentielle 15, deux cloisons 29, qui, parallèles aux faces principales 17, sont chacune respectivement plus ou moins engagées dans les coquilles intermédiaires 28.As schematized in Figure 2, and according to provisions which are in practice of the same type as those described in the French patent filed on March 18, 1995 under No. 95 03042 and published under No. 2,731,837, it comprises, globally, on the one hand, five shells 26, 27, 28, which extend from one side to the other side faces 21E, 21S, and which, duly confronted two by two, form in pairs the necessary housing terminals 13E input and 13S output terminals, namely, two end shells 26, which respectively form the side faces 17, a central shell 27, and, on either side of the latter, two intermediate shells 28, and, on the other hand, for the delimitation of the differential protection compartment 15, two partitions 29, which parallel to the main faces 17, are respectively more or less engaged in the intermediate shells 28.

Ces coquilles 26, 27, 28 et ces cloisons 29 représentent des parois, qui, bien entendu, ont, inévitablement, toutes une certaine épaisseur.These shells 26, 27, 28 and these partitions 29 represent walls, which, of course, inevitably all have a certain thickness.

Mais, comme indiqué ci-dessus, il en est volontairement fait abstraction ici.But, as stated above, it is deliberately abstracted here.

Tous les compartiments de coupure 12 ont globalement la même constitution.All the cleavage compartments 12 have generally the same constitution.

De manière connue en soi, ils comportent, globalement, d'une part, en série entre leur borne d'entrée 13E et leur borne de sortie 13S, tel que représenté sur la figure 5 et tel que schématisé sur la figure 7, un organe de déclenchement magnétique 30, un contact fixe 31, un contact mobile 32, et un organe de déclenchement thermique 33, et, d'autre part, tel que schématisé en traits interrompus sur la figure 5, un mécanisme 35, communément appelé "serrure", qui, sous le contrôle de l'organe de déclenchement magnétique 30 et de l'organe de déclenchement thermique 33, est apte à faire passer le contact mobile 32 d'une position de fermeture, pour laquelle il est en appui contre le contact fixe 31, tel que représenté sur la figure 5, à une position d'ouverture, pour laquelle, au contraire, il est écarté de ce contact fixe 31.In a manner known per se, they generally comprise, on the one hand, in series between their input terminal 13E and their output terminal 13S, as shown in FIG. 5 and as shown diagrammatically in FIG. magnetic trip 30, a fixed contact 31, a movable contact 32, and a thermal tripping member 33, and, on the other hand, as shown schematically in broken lines in FIG. 5, a mechanism 35, commonly called a "lock" which, under the control of the magnetic tripping member 30 and the thermal tripping member 33, is adapted to move the movable contact 32 to a closed position, for which it bears against the fixed contact 31, as shown in Figure 5, at an open position, for which, on the contrary, it is removed from this fixed contact 31.

Pour le passage, inverse, du contact mobile 32 de sa position d'ouverture à sa position de fermeture, ce mécanisme 35 est lui-même sous le contrôle de la manette de manoeuvre 25 à la disposition de l'usager.For the reverse passage of the movable contact 32 from its open position to its closed position, this mechanism 35 is itself under the control of the operating lever 25 at the disposal of the user.

Suivant des dispositions décrites plus en détail ultérieurement, il est en outre prévu, pour chacun des compartiments de coupure 12, un enroulement de couplage 36, qui est lui aussi inséré entre leur borne d'entrée 13E et leur borne de sortie 13S, et qui intervient dans le compartiment de protection différentielle 15.According to arrangements described in more detail later, a coupling winding 36 is also provided for each of the breaking compartments 12, which is also inserted between their input terminal 13E and their output terminal 13S, and which intervenes in the differential protection compartment 15.

Sur la figure 5, et pour plus de simplicité, seule a été représentée la partie fixe 37E de la borne d'entrée 13E et la partie fixe 37S de la borne de sortie 13S.In FIG. 5, and for simplicity, only the fixed part 37E of the input terminal 13E and the fixed part 37S of the output terminal 13S have been represented.

Mais, de manière connue en soi, et ainsi qu'il est visible sur les figures 3 et 4, ces bornes d'entrée 13E et de sortie 13S comportent également une partie mobile 38E, 38S, en forme d'étrier, pour le serrage d'un câble électrique.But, in a manner known per se, and as it can be seen in FIGS. 3 and 4, these input terminals 13E and 13S output terminals also comprise a moving part 38E, 38S, in the form of a stirrup, for clamping an electric cable.

De manière connue en soi, l'organe de déclenchement magnétique 30 comporte un enroulement 40 disposé autour d'un noyau 41, pour la commande d'un percuteur 42 apte à agir sur le mécanisme 35.In a manner known per se, the magnetic tripping member 30 comprises a winding 40 arranged around a core 41, for the control of a striker 42 able to act on the mechanism 35.

En pratique, l'axe A2 de cet organe de déclenchement magnétique 30, c'est-à-dire l'axe A2 suivant lequel agit son percuteur 42, s'étend parallèlement tant aux faces principales 17 du boîtier 11 qu'à la face de fixation 18 de celui-ci.In practice, the axis A 2 of this magnetic trigger member 30, that is to say the axis A 2 in which its striker 42 acts, extends parallel to both the main faces 17 of the housing 11 as well as the attachment face 18 thereof.

De manière également connue en soi, il est associé, aux contacts 31, 32, qui forment les contacts interrupteurs de l'ensemble, une chambre d'extinction d'arc 43.In a manner also known per se, it is associated with the contacts 31, 32, which form the switch contacts of the assembly, an arc extinction chamber 43.

Dans la forme de réalisation représentée, cette chambre d'extinction d'arc 43 s'étend entre l'organe de déclenchement magnétique 30 et la face de fixation 18 du boîtier 11.In the embodiment shown, this arc extinguishing chamber 43 extends between the magnetic tripping member 30 and the fixing face 18 of the housing 11.

Sa plaque d'entrée 44 appartient au support 45 de l'organe de déclenchement magnétique 30, et sa plaque de sortie 46 appartient à une pièce métallique 47 à laquelle appartient également la partie fixe 37S de la borne de sortie 13S.Its input plate 44 belongs to the support 45 of the magnetic tripping member 30, and its output plate 46 belongs to a metal part 47 to which also belongs the fixed part 37S of the output terminal 13S.

Cette pièce métallique 47 sert conjointement de support à l'organe de déclenchement thermique 33, qui est en l'espèce un bilame, et, par une tresse 48, cet organe de déclenchement thermique 33 est relié au contact mobile 32.This metal part 47 serves jointly to support the thermal tripping member 33, which is in this case a bimetallic strip, and, by a braid 48, this thermal tripping member 33 is connected to the movable contact 32.

Les dispositions qui précèdent sont bien connues par elles-mêmes, notamment par le brevet français No 94 09691 déjà mentionné ci-dessus, et elles ne seront donc pas décrites plus en détail ici.The above provisions are well known in themselves, in particular by the French patent No. 94 09691 already mentioned above, and they will therefore not be described in more detail here.

Il est toutefois à souligner que, suivant un aspect de l'invention, l'enroulement 40 de l'organe de déclenchement magnétique 30 est formé par un fil de section transversale rectangulaire dont la plus grande dimension est parallèle à l'axe A2 de cet organe de déclenchement magnétique 30, figure 6.It should be emphasized, however, that, according to one aspect of the invention, the winding 40 of the magnetic tripping member 30 is formed by a wire of rectangular cross section whose largest dimension is parallel to the axis A 2 of this magnetic tripping member 30, FIG.

Il est ainsi possible de minimiser, au mieux, l'encombrement transversal de l'organe de déclenchement magnétique 30.It is thus possible to minimize, at best, the transverse bulk of the magnetic tripping member 30.

Préférentiellement, et cela est le cas dans la forme de réalisation représentée, le mécanisme 35 est du type de celui décrit dans le brevet français No 94 06585 déjà mentionné ci-dessus, et, à cet égard, ce dernier peut être considéré comme faisant partie intégrante de la présente description.Preferably, and this is the case in the embodiment shown, the mechanism 35 is of the type described in the patent. No. 94 06585 already mentioned above, and in this regard, the latter may be considered an integral part of this description.

Ce mécanisme 35 ne sera donc pas décrit dans tous ses détails ici.This mechanism will not be described in detail here.

Seuls en seront mentionnés les éléments nécessaires à la compréhension de l'invention.Only the elements necessary for the understanding of the invention will be mentioned.

Il suffira de rappeler, à ce sujet, que, pour la constitution, en particulier, de ce mécanisme 35, chacun des compartiments de coupure 12 comporte, globalement, un support de contact 49, 49', qui est monté rotatif autour d'un axe A3 fixe par rapport au boîtier 11, et sur lequel le contact mobile 32 est lui-même monté rotatif autour de ce même axe A3, une pièce d'accrochage 50, 50', qui est elle aussi montée rotative autour de cet axe A3 fixe, et un organe de manoeuvre 52, 52', qui, par l'intermédiaire de la manette de manoeuvre 25, est à la disposition de l'usager, suivant des dispositions décrites plus en détail ultérieurement, et qui, par l'intermédiaire d'un embiellage 53, 53', également détaillé ultérieurement, et sous le contrôle de la pièce d'accrochage 50, 50', est apte à faire passer le support de contact 49, 49' d'une position de déclenchement, pour laquelle le contact mobile 32 est en position d'ouverture, à distance du contact fixe 31, et une position d'enclenchement, pour laquelle, au contraire, ce contact mobile 32 est en position de fermeture, en appui contre le contact fixe 31, avec, associés au support de contact 49, 49', des moyens élastiques d'ouverture 54, 54', qui sollicitent en permanence ce support de contact 49, 49' en direction de sa position de déclenchement.It will suffice to recall, in this regard, that, for the constitution, in particular, of this mechanism 35, each of the cutoff compartments 12 comprises, overall, a contact support 49, 49 ', which is rotatably mounted around a axis A 3 fixed relative to the housing 11, and on which the movable contact 32 is itself rotatably mounted around the same axis A 3 , a fastening piece 50, 50 ', which is also rotatably mounted around this A fixed axis A 3 , and an actuator 52, 52 ', which, via the operating lever 25, is available to the user, according to the arrangements described in more detail later, and which, by via a linkage 53, 53 ', also detailed later, and under the control of the attachment piece 50, 50', is adapted to move the contact support 49, 49 'from a trigger position , for which the movable contact 32 is in the open position, at a distance from the fixed contact 31, and a posi switching engagement, for which, in contrast, this movable contact 32 is in the closed position, bearing against the fixed contact 31, with, associated with the contact support 49, 49 ', elastic opening means 54, 54 ', which permanently urge this contact support 49, 49' towards its trigger position.

En pratique, l'axe A3 fixe commun au contact mobile 32, au support de contact 49, 49', et à la pièce d'accrochage 50, 50', s'étend transversalement, suivant la largeur du compartiment de coupure 12 concerné.In practice, the fixed axis A 3 fixed to the movable contact 32, to the contact support 49, 49 ', and to the attachment piece 50, 50' extends transversely, depending on the width of the cutoff compartment 12 concerned. .

Suivant l'invention, les deux compartiments de coupure 12 d'une même paire P, P' ont en commun un même support de contact 49, 49', une même pièce d'accrochage 50, 50', et un même organe de manoeuvre 52, 52'.According to the invention, the two cutoff compartments 12 of the same pair P, P 'have in common one and the same contact support 49, 49', the same attachment piece 50, 50 ', and the same operating member 52, 52 '.

Ils ont également en commun un même embiellage 53, 53 et un même organe de manoeuvre 52, 52'.They also have in common the same linkage 53, 53 and the same operating member 52, 52 '.

Comme décrit dans le brevet français No 94 09691 déjà mentionné ci-dessus, le support de contact 49, 49' commun aux deux compartiments de coupure 12 d'une même paire P, P' forme, avec les contacts mobiles 32 correspondants, les organes élastiques 55 associés à ces contacts mobiles 32, et la pièce d'accrochage 50, 50', un sous-ensemble unitaire 56, 56'.As described in French Patent No. 94 09691 already mentioned above, the contact support 49, 49 'common to the two switching compartments 12 of the same pair P, P' form, with the corresponding movable contacts 32, the organs elastic members 55 associated with these movable contacts 32, and the attachment piece 50, 50 ', a unitary subassembly 56, 56'.

Un tel sous-ensemble unitaire 56 est représenté, isolément, sur les figures 8 et 9, pour la paire P de compartiments de coupure 12.Such a unitary subassembly 56 is shown, in isolation, in FIGS. 8 and 9, for the pair P of cutoff compartments 12.

Ainsi qu'il est visible sur les figures 8 et 9 pour ce sous-ensemble unitaire 56, et tel que décrit en détail dans le brevet français No 94 09691 déjà mentionné ci-dessus, la pièce d'accrochage 50, 50' des sous-ensembles unitaires 56, 56' comporte, notamment, un bec d'accrochage 57, pour l'intervention de l'embiellage 53, 53', une paroi d'isolation 58, pour l'intervention du percuteur 42 de l'un ou de l'autre des deux organes de déclenchement magnétiques 30 concernés, des ergots 59, pour l'intervention de l'un ou de l'autre des deux organes de déclenchement thermiques 33 également concernés, et, parallèlement à l'axe A3 fixe, un bras 60, qui est ajouré axialement d'un perçage 61, et qui, ainsi qu'il sera décrit ultérieurement, est ici mis à profit pour l'intervention du compartiment de protection différentielle 15.As can be seen in FIGS. 8 and 9 for this unitary subassembly 56, and as described in detail in the French patent No. 94 09691 already mentioned above, the fastening piece 50, 50 'of the subassemblies unit assemblies 56, 56 'comprises, in particular, an attachment nose 57, for the intervention of the linkage 53, 53', an insulating wall 58, for the intervention of the striker 42 of one or on the other of the two magnetic triggering members 30 concerned, lugs 59, for the intervention of one or the other of the two thermal release members 33 also concerned, and parallel to the fixed axis A 3 , an arm 60, which is perforated axially with a bore 61, and which, as will be described later, is used here for the intervention of the differential protection compartment 15.

Suivant l'invention, l'organe de manoeuvre 52, 52' associé aux deux compartiments de coupure 12 d'une même paire P, P' comportant, dans le boîtier 11, un moyeu 62, 62' par lequel il est monté rotatif sur ce boîtier 11, les deux moyeux 62, 62' correspondant chacun respectivement aux deux paires P, P' de compartiments de coupure 12 sont calés en rotation l'un par rapport à l'autre.According to the invention, the operating member 52, 52 'associated with the two cutoff compartments 12 of the same pair P, P' comprising, in the housing 11, a hub 62, 62 'by which it is rotatably mounted on this housing 11, the two hubs 62, 62 'corresponding respectively to two pairs P, P' of cutoff compartments 12 are set in rotation relative to each other.

En pratique, dans la forme de réalisation représentée, ces deux moyeux 62, 62' sont alignés l'un avec l'autre, avec, entre eux, des moyens de crabotage 63, 63'.In practice, in the embodiment shown, these two hubs 62, 62 'are aligned with each other, with interlocking means 63, 63' between them.

Par exemple, et tel que représenté, figures 13 et 14, le moyeu 62' comporte un tronçon de diamètre réduit 64 par lequel il est apte à s'engager dans un alésage 65 du moyeu 62, et les moyens de crabotage 63, 63' sont formés, d'une part, par deux dégagements 63, qui sont prévus en creux sur la surface interne de l'alésage 65 du moyeu 62 en positions diamétralement opposées l'un par rapport à l'autre, et, d'autre part, par deux bossages 63', qui, complémentaires des dégagements 63, et disposés en correspondance avec ceux-ci, font saillie sur le tronçon de diamètre réduit 64 du moyeu 62'.For example, and as shown in FIGS. 13 and 14, the hub 62 'comprises a section of reduced diameter 64 through which it is able to engage in a bore 65 of the hub 62, and the clutching means 63, 63' are formed, on the one hand, by two recesses 63, which are recessed on the inner surface of the bore 65 of the hub 62 in diametrically opposite positions with respect to each other, and, on the other hand, by two bosses 63 ', which, complementary to the clearances 63, and arranged in correspondence therewith, protrude over the reduced diameter section 64 of the hub 62'.

Conjointement, l'organe de manoeuvre 52, 52' associé aux deux compartiments de coupure 12 d'une même paire P, P' comportant un doigt 67, 67', qui, solidaire du moyeu 62, 62' correspondant, fait saillie hors du boîtier 11, les deux doigts 67, 67' correspondant chacun respectivement aux deux paires P, P' de compartiments de coupure 12 sont, à l'extérieur du boîtier 11, reliés l'un à l'autre par une même barrette 68, l'ensemble constituant la manette de manoeuvre 25 à la disposition de l'usager.Together, the operating member 52, 52 'associated with the two cutoff compartments 12 of the same pair P, P' having a finger 67, 67 ', which, integral with the hub 62, 62' corresponding, protrudes out of the 11, the two fingers 67, 67 'corresponding respectively to two pairs P, P' of cutoff compartments 12 are, outside the housing 11, connected to one another by the same bar 68, assembly constituting the joystick 25 available to the user.

Dans la forme de réalisation représentée, et comme décrit dans le brevet français No 94 09691 déjà mentionné ci-dessus, l'embiellage 53, 53' associé à chacune des paires P, P' de compartiments de coupure 12 comporte, d'une part, un cliquet 70, 70', qui est monté rotatif sur le support de contact 49, 49' correspondant, autour d'un axe parallèle à l'axe A3, à distance de celui-ci, et qui, par un bec d'accrochage non visible sur les figures, est apte à coopérer en accrochage avec le bec d'accrochage 57 de la pièce d'accrochage 50, 50' correspondante, et, d'autre part, une bielle 72, 72', qui est articulée au moyeu 62, 62' de l'organe de manoeuvre 52, 52' correspondant, à la faveur d'une oreille 73, 73' de ce moyeu 62, 62', et autour d'un axe qui, bien entendu, est lui aussi parallèle à l'axe A3.In the embodiment shown, and as described in French Patent No. 94 09691 already mentioned above, the linkage 53, 53 'associated with each pair P, P' of cutoff compartments 12 comprises, on the one hand , a pawl 70, 70 ', which is rotatably mounted on the corresponding contact support 49, 49', about an axis parallel to the axis A 3 , at a distance from the latter, and which, by means of a spout, hooking not visible in the figures, is adapted to cooperate in engagement with the latching nose 57 of the attachment part 50, 50 'corresponding, and, secondly, a rod 72, 72', which is articulated at the hub 62, 62 'of the actuating member 52, 52' corresponding to the favor of an ear 73, 73 'of the hub 62, 62', and about an axis which, of course, is him also parallel to the axis A 3 .

Enfin, dans la forme de réalisation représentée, les moyens élastiques d'ouverture 54, 54' associés au support de contact 49, 49' des compartiments de coupure 12 sont des ressorts de compression.Finally, in the embodiment shown, the elastic opening means 54, 54 'associated with the contact support 49, 49' of the cutoff compartments 12 are compression springs.

Suivant des dispositions du type de celles décrites dans le brevet français No 94 06585 déjà mentionné ci-dessus, et, à cet égard, celui-ci peut lui aussi être considéré comme faisant partie intégrante de la présente description, le compartiment de protection différentielle 15 est, lui, équipé d'un détecteur de défaut 75 apte à délivrer un courant différentiel en réponse à un défaut, d'un relais sensible 76, qui est desservi par ce détecteur de défaut 75, d'un levier de déclenchement 77, qui, monté rotatif autour d'un axe A4 fixe par rapport au boîtier 11, comporte un bras 78 sur lequel peut agir le relais sensible 76, et d'un levier d'actionnement 79, qui, monté rotatif autour d'un axe A5 fixe par rapport au boîtier 11 et distinct de l'axe A4 fixe précédent, comporte un bras 80 par lequel, pour son intervention sur le mécanisme 35 des compartiments de coupure 12, il peut agir sur une autre pièce 81 qui sera décrite ultérieurement.Following provisions of the type described in French Patent No. 94 06585 already mentioned above, and in this regard, it can also be considered as an integral part of the present description, the differential protection compartment 15 is equipped with a fault detector 75 capable of delivering a differential current in response to a the fault, of a sensitive relay 76, which is served by this fault detector 75, a trigger lever 77, which, rotatably mounted about an axis A 4 fixed relative to the housing 11, comprises an arm 78 on which can act the sensitive relay 76, and an actuating lever 79, which, rotatably mounted about a fixed axis A 5 relative to the housing 11 and distinct from the previous fixed axis A 4 , comprises an arm 80 by which, for its intervention on the mechanism 35 of the cutoff compartments 12, it can act on another piece 81 which will be described later.

Ces dispositions étant, au moins dans leur principe, bien connues par elles-mêmes, elles ne seront pas décrites en détail ici.These provisions being, at least in principle, well known in themselves, they will not be described in detail here.

S'agissant, par exemple, du détecteur de défaut 75, il comporte, en pratique, un tore 82 sur lequel se trouvent bobinés, d'une part, un primaire, qui, pour chacun des compartiments de coupure 12, comporte au moins un enroulement de couplage 36 en provenance de ce compartiment de coupure 12, et, d'autre part, un secondaire, qui n'est pas visible sur les figures, et auquel est raccordé le relais sensible 76.As regards, for example, the fault detector 75, it comprises, in practice, a torus 82 on which are wound on the one hand, a primary, which, for each of the breaking compartments 12, comprises at least one coupling winding 36 from this breaking compartment 12, and, secondly, a secondary, which is not visible in the figures, and to which is connected the sensitive relay 76.

En pratique, dans la forme de réalisation représentée, seul un enroulement de couplage 36 est prévu pour chacun des compartiments de coupure 12.In practice, in the embodiment shown, only a coupling winding 36 is provided for each of the breaking compartments 12.

Le levier de déclenchement 77 et le levier d'actionnement 79 forment, par ailleurs, avec la pièce 81, dans cette forme de réalisation, un sous-ensemble unitaire 83, qui constitue le mécanisme, ou "serrure", du compartiment de protection différentielle 15.The release lever 77 and the actuating lever 79 also form, with the part 81, in this embodiment, a unitary subassembly 83, which constitutes the mechanism, or "lock," of the differential protection compartment. 15.

Leurs axes A4, A5 respectifs s'étendent transversalement par rapport au compartiment de protection différentielle 15.Their respective axes A 4 and A 5 extend transversely with respect to the differential protection compartment 15.

Comme l'axe A3 des supports de contact 49, 49' des compartiments de coupure 12, ces axes A4, A5 sont donc parallèles à la face de fixation 18 du boîtier 11 et perpendiculaires aux faces principales 17 de celui-ci.Like the axis A 3 of the contact supports 49, 49 'of the breaking compartments 12, these axes A 4 , A 5 are therefore parallel to the fixing face 18 of the housing 11 and perpendicular to the main faces 17 thereof.

Préférentiellement, et cela est le cas dans la forme de réalisation représentée, l'axe A5, c'est-à-dire l'axe autour duquel est monté rotatif le levier d'actionnement 79 du compartiment de protection différentielle 15, est dans l'alignement de l'axe A3 des supports de contact 49, 49' des compartiments de coupure 12.Preferably, and this is the case in the embodiment shown, the axis A 5 , that is to say the axis about which is rotatably mounted the actuating lever 79 of the differential protection compartment 15, is in the alignment of the axis A 3 of the contact supports 49, 49 'of the switching compartments 12.

Autrement dit, ces axes A3 et A5 sont identiques ou confondus.In other words, these axes A 3 and A 5 are identical or combined.

Dans la forme de réalisation représentée, l'axe A6 du tore 82 du détecteur de défaut 75 du compartiment de protection différentielle 15 s'étend, lui, sensiblement perpendiculairement à la face de fixation 18 du boîtier 11.In the embodiment shown, the axis A 6 of the torus 82 of the fault detector 75 of the differential protection compartment 15 extends substantially perpendicularly to the fixing face 18 of the housing 11.

Il s'étend donc sensiblement perpendiculairement à l'axe A2 de l'organe de déclenchement magnétique 30 des compartiments de coupure 12.It therefore extends substantially perpendicularly to the axis A 2 of the magnetic tripping member 30 of the breaking compartments 12.

Suivant l'invention, pour l'un au moins des compartiments de coupure 12, et, en pratique, pour chacun de ceux-ci, l'enroulement de couplage 36 participant à la constitution du primaire du détecteur de défaut 75 est inséré entre la borne d'entrée 13E et l'organe de déclenchement magnétique 30 d'un tel compartiment de coupure 12.According to the invention, for at least one of the breaking compartments 12, and, in practice, for each of them, the coupling winding 36 participating in the constitution of the primary of the fault detector 75 is inserted between the input terminal 13E and the magnetic trip device 30 of such a breaking compartment 12.

Plus précisément, pour l'un au moins des compartiments de coupure 12, et, en pratique, pour chacun de ceux-ci, cet enroulement de couplage 36 intervient immédiatement en aval de la borne d'entrée 13E et immédiatement en amont de l'entrée correspondante de l'organe de déclenchement magnétique 30.More specifically, for at least one of the breaking compartments 12, and in practice for each of them, this coupling winding 36 intervenes immediately downstream of the input terminal 13E and immediately upstream of the corresponding input of the magnetic trip member 30.

Préférentiellement, et cela est le cas dans la forme de réalisation représentée, pour chacun des compartiments de coupure 12, l'enroulement de couplage 36 participant à la constitution du primaire du détecteur de défaut 75 est relié à l'organe de déclenchement magnétique 30 par un tronçon de retour 85, qui est parallèle à l'axe A2 de cet organe de déclenchement magnétique 30, et qui, pour l'ensemble des compartiments de coupure 12, s'étend à un même niveau, du côté de l'organe de déclenchement magnétique 30 opposé à celui suivant lequel s'étend la chambre d'extinction d'arc 43 associée.Preferably, and this is the case in the embodiment shown, for each of the breaking compartments 12, the coupling winding 36 participating in the constitution of the primary of the fault detector 75 is connected to the magnetic tripping member 30 by a return section 85, which is parallel to the axis A 2 of this magnetic triggering member 30, and which, for all of the cutoff compartments 12, extends to the same level, on the side of the organ magnetic tripping 30 opposite to that which extends the arc extinguishing chamber 43 associated.

Suivant l'invention, la pièce 81 appartenant au sous-ensemble unitaire 83 qui constitue le mécanisme du compartiment de protection différentielle 15 est un vilebrequin, qui est monté rotatif autour du même axe A5 fixe que le levier d'actionnement 79, et qui comporte, latéralement, en position excentrée par rapport à cet axe A5 fixe, deux doigts 87, 87'.According to the invention, the part 81 belonging to the unitary subassembly 83 which constitutes the mechanism of the differential protection compartment 15 is a crankshaft, which is rotatably mounted about the same axis A 5 fixed that the actuating lever 79, and which has, laterally, in eccentric position with respect to this fixed axis A 5 , two fingers 87, 87 '.

Alignés l'un avec l'autre, ces deux doigts 87, 87' s'étendent dos à dos, en porte à faux, et ils sont chacun respectivement en prise avec les deux pièces d'accrochage 50, 50' qui correspondent chacune respectivement aux deux paires P, P' de compartiments de coupure 12, à la faveur du perçage 61 du bras 60 de ces pièces d'accrochage 50, 50'.Aligned with each other, these two fingers 87, 87 'extend back to back, cantilevered, and they are each respectively engaged with the two attachment pieces 50, 50' which correspond respectively respectively to the two pairs P, P 'of cutoff compartments 12, in favor of the drilling 61 of the arm 60 of these attachment pieces 50, 50'.

Dans la forme de réalisation représentée, la pièce 81 formant vilebrequin comporte un moyeu 88 creux, dans lequel est logé le levier d'actionnement 79, et qui est ajouré d'un évidement 89, et le bras 80 du levier d'actionnement 79 s'étend au droit de la tranche de cet évidement 89, pour intervention sur la pièce 81, et, par celle-ci, sur la pièce d'accrochage 50, 50' des compartiments de coupure 12.In the embodiment shown, the part 81 forming a crankshaft comprises a hollow hub 88, in which is housed the actuating lever 79, and which is perforated with a recess 89, and the arm 80 of the operating lever 79 extends to the right of the portion of this recess 89, for intervention on the piece 81, and, by the latter, on the attachment piece 50, 50 'of the cutoff compartments 12.

Les processus de déclenchement et d'enclenchement du disjoncteur différentiel tétrapolaire 10 ainsi constitué étant du même type que ceux décrits dans les brevets français Nos 94 06585 et 94 09691 déjà mentionnés ci-dessus, ils ne seront pas repris ici.The tripping and tripping circuit breaker tripping processes 10 thus constituted being of the same type as those described in the French patents Nos. 94 06585 and 94 09691 already mentioned above, they will not be repeated here.

La figure 15 illustre, en variante, l'application de l'invention à un disjoncteur différentiel bipolaire 10'.Figure 15 illustrates, alternatively, the application of the invention to a bipolar differential circuit breaker 10 '.

Le nombre n1 de compartiments de coupure 12 de ce disjoncteur différentiel bipolaire 10' étant donc égal à deux, la largeur l2 du compartiment de protection différentielle 15 est égale à la valeur suivante : l 2 = 1 2 . n 1 . l 1 = l 1 = 2 M 3

Figure imgb0007
Since the number n 1 of the breaking compartments 12 of this bipolar differential circuit breaker 10 'is therefore equal to two, the width l 2 of the differential protection compartment 15 is equal to the following value: l two = 1 two . not 1 . l 1 = l 1 = two M 3
Figure imgb0007

Conjointement, la largeur L du boîtier 11' correspondant est alors égale à 2M.Together, the width L of the housing 11 'corresponding is then equal to 2M.

Autrement dit, le nombre n est alors égal à deux.In other words, the number n is then equal to two.

Pour le reste, les dispositions sont du même type que les précédentes.For the rest, the provisions are of the same type as the previous ones.

En particulier, s'agissant d'un disjoncteur différentiel tétrapolaire, ou tripolaire avec neutre, il est possible, en variante de l'organisation préférentielle décrite et représentée, de disposer le compartiment de protection différentielle à l'une ou l'autre des extrémités de l'alignement formé par les compartiments de coupure.In particular, in the case of a four-pole or three-pole differential circuit breaker with a neutral, it is possible, as a variant of the preferred arrangement described and shown, to arrange the differential protection compartment at one or the other of the ends. of the alignment formed by the breaking compartments.

De même, s'agissant d'un disjoncteur différentiel bipolaire, il est possible de disposer le compartiment de protection différentielle entre les compartiments de coupure.Similarly, in the case of a bipolar differential circuit breaker, it is possible to arrange the differential protection compartment between the breaking compartments.

Claims (18)

  1. A multipolar balanced protective circuit breaker (RCBO) of the kind comprising, in the same casing (11, 11') of a width L equal to a multiple n of a base module M, on the one hand, an even number n1 of break compartments (12) of the same width l1 which all extend in mutually parallel relationship and with each of which are associated an input terminal (13E) and an output terminal (13S) and, on the other hand, a balanced protection compartment (15) and jointly the balanced protection compartment (15) extends in parallel relationship with the break compartments (12), characterised in that, disregarding the wall thicknesses which are inevitably present, the width l1 of the break compartments (12) is substantially equal to the following value: l 1 = 2 M 3
    Figure imgb0011

    and the width l2 of the balanced protection compartment (15) is at most equal to the following value: l 2 = 1 2 . n 1 . l 1 .
    Figure imgb0012
  2. A multipolar balanced protective circuit breaker according to claim 1 characterised in that, disregarding the wall thicknesses which are inevitably present, the width l2 of the balanced protection compartment (15) is equal to the following value: l 2 = 1 2 . n 1 . l 1 .
    Figure imgb0013
  3. A multipolar balanced protective circuit breaker according to either one of claims 1 and 2 characterised in that the input terminals (13E) on the one hand and the output terminals (13S) on the other hand are distributed at a regular pitch equal to the base module M in such a way that they are offset with respect to the break compartment (12) with which they are associated.
  4. A multipolar balanced protective circuit breaker according to any one of claims 1 to 3 characterised in that, the number n1 of break compartments (12) being equal to four, those break compartments (12) are grouped in pairs (P, P') on the basis of one pair (P) of two break compartments (12) on a first side of the balanced protection compartment (15) and one pair (P') of two break compartments (12) on the side of said balanced protection compartment (15) opposite to the foregoing, in such a way that the balanced protection compartment (15) occupies the central part of the internal volume of the casing (11) while the break compartments (12) occupy the lateral parts of said internal volume.
  5. A multipolar balanced protective circuit breaker according to claim 4 characterised in that, each of the break compartments (12) comprising a contact support (49, 49') which is mounted rotatably about an axis (A3) fixed with respect to the casing (11) and on which their movable contact (32) is itself mounted rotatably, the two break compartments (12) of a same pair (P, P') have in common the same contact support (49, 49').
  6. A multipolar balanced protective circuit breaker according to claim 5 characterised in that the two break compartments (12) of a same pair (P, P') also have in common the same hooking piece (50, 50') which is also mounted rotatably about the fixed axis (A3) and the same operating member (52, 52') which by way of a connecting link assembly (53, 53') and under the control of the hooking piece (50, 50') is capable of moving the contact support (49, 49') from a disengaged position in which their movable contact (32) is at a distance from a fixed contact (31) and an engaged position in which in contrast said movable contact (32) is in a condition of bearing against said fixed contact (31) with, associated with the contact support (49, 49'), resilient opening means (54, 54') which constantly urge said contact support (49, 49') in the direction of its disengaged position.
  7. A multipolar balanced protective circuit breaker according to claim 6 characterised in that, the operating member (52, 52') associated with the two break compartments (12) of the same pair (P, P') comprising in the casing (11) a hub (62, 62') by way of which it is mounted rotatably on said casing (11), the two means (62, 62') each respectively corresponding to the two pairs (P, P') of break compartments (12) are fixed in respect of rotation with respect to each other.
  8. A multipolar balanced protective circuit breaker according to claim 7 characterised in that the two hubs (62, 62') are aligned with each other with between them dog engagement means (63, 63').
  9. A multipolar balanced protective circuit breaker according to either one of claims 7 and 8 characterised in that, the operating member (52, 52') associated with the two break compartments (12) of the same pair (P, P') comprising a finger (67, 67') which, being fixed with respect to the corresponding hub (62, 62'), projects out of the casing (11), the fingers (67, 67') each respectively corresponding to the two pairs (P, P') of break compartments (12) are connected to each other by the same bar portion (68) on the outside of the casing (11).
  10. A multipolar balanced protective circuit breaker according to any one of claims 6 to 9 characterised in that, the balanced protection compartment (15) being equipped with a fault detector (75) which is capable of delivering a differential current in response to a fault, a sensitive relay (76) which is served by the fault detector (75), a triggering lever (77) which, mounted rotatably about an axis (A4) which is fixed with respect to the casing (11), comprises an arm (78) on which the sensitive relay (76) can act, and an actuating lever (79) which, mounted rotatably about an axis (A5) which is fixed with respect to the casing (11) and separate from the preceding fixed axis (A4), comprises an arm (80) by way of which it can act on another piece (81), said other piece (81) is a crankshaft which is mounted rotatably about the same fixed axis (A5) as the actuating lever (79) and which comprises laterally in an eccentric position with respect to said fixed axis (A5) two fingers (87, 87'), and that in mutually aligned relationship said two fingers (87, 87') extend back-to-back in cantilever relationship and are each respectively in engagement with the two hooking pieces (50, 50') which each respectively correspond to the two pairs (P, P') of break compartments (12).
  11. A multipolar balanced protective circuit breaker according to claim 10 characterised in that the crankshaft-forming piece (81) comprises a hollow hub (88) in which the actuating lever (79) is accommodated and which is apertured with an opening (89) and the arm (80) of the actuating lever (79) extends in line with the edge of said opening (89).
  12. A multipolar balanced protective circuit breaker according to claims 5 and 10 in combination characterised in that the axis (A5) about which the actuating lever (79) of the balanced protection compartment (15) is rotatably mounted and the axis (A3) of the contact supports (49, 49') of the break compartments (12) are identical.
  13. A multipolar balanced protective circuit breaker according to either one of claims 10 and 11 characterised in that, the fault detector (75) comprising a toroidal core (82) on which are wound on the one hand a primary coil which, for each of the break compartments (12), comprises at least one coupling winding (36) originating from said break compartment (12) and on the other hand a secondary coil to which the sensitive relay (76) is connected, and one at least of the break compartments (12) comprising between its input terminal (13E) and its output terminal (13S) a magnetic triggering member for one at least of the break compartments (12), the coupling winding (36) is inserted between the input terminal (13E) and the magnetic triggering member (30).
  14. A multipolar balanced protective circuit breaker according to claim 13 characterised in that, for one at least of the break compartments (12), the coupling winding (36) is operatively disposed immediately downstream of the input terminal (13E) and immediately upstream of the corresponding input of the magnetic triggering member (30).
  15. A multipolar balanced protective circuit breaker according to either one of claims 13 and 14 characterised in that, for each of the break compartments (12), the coupling winding (36) involved in constituting the primary coil of the fault detector (75) is connected to the magnetic triggering member (30) by a return portion (85) which is parallel to the axis (A2) of said magnetic triggering member (30) and which for all of the break compartments (12) extends at the same level.
  16. A multipolar balanced protective circuit breaker according to any one of claims 13 to 15 characterised in that the axis (A6) of the core (82) of the fault detector (75) of the balanced protection compartment (15) extends substantially perpendicularly to the axis (A2) of the magnetic triggering member (30) of the break compartments (12).
  17. A multipolar balanced protective circuit breaker according to any one of claims 1 to 16 characterised in that, one at least of the break compartments (12) comprising a magnetic triggering member (30), the axis (A2) of said magnetic triggering member (30) extends in parallel relationship with the fixing face (18) of the casing (11).
  18. A multipolar balanced protective circuit breaker according to any one of claims 1 to 17 characterised in that, one at least of the break compartments (17) comprising a magnetic triggering member (30) with a winding (40) disposed around a core portion (41), the winding (40) is formed by a wire of rectangular cross-section, the largest dimension of which is parallel to the axis (A2) of said magnetic triggering member (30).
EP99400774A 1998-04-03 1999-03-30 Multipolar differential switch Expired - Lifetime EP0948021B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9804153A FR2777110B1 (en) 1998-04-03 1998-04-03 MULTIPOLAR DIFFERENTIAL CIRCUIT BREAKER
FR9804153 1998-04-03

Publications (2)

Publication Number Publication Date
EP0948021A1 EP0948021A1 (en) 1999-10-06
EP0948021B1 true EP0948021B1 (en) 2006-06-21

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ID=9524821

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99400774A Expired - Lifetime EP0948021B1 (en) 1998-04-03 1999-03-30 Multipolar differential switch

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EP (1) EP0948021B1 (en)
AT (1) ATE331295T1 (en)
DE (1) DE69931989T2 (en)
ES (1) ES2267235T3 (en)
FR (1) FR2777110B1 (en)
HU (1) HUP9900869A3 (en)
PL (1) PL193817B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2457568C2 (en) * 2007-06-29 2012-07-27 Шнейдер Электрик Эндюстри Сас Electric commutation device having additional electric function
EP3029704A1 (en) 2014-12-01 2016-06-08 Hager-Electro SAS (Société par Actions Simplifiée) Differential circuit breaker

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20011575A1 (en) * 2001-07-23 2003-01-23 Abb Service Srl MODULAR TETRAPOLAR DIFFERENTIAL SWITCH
FR2902924B1 (en) * 2006-06-26 2008-08-01 Schneider Electric Ind Sas MODULAR ELECTRICAL APPARATUS PROVIDING AT LEAST TWO ELECTRICAL FUNCTIONS SUCH AS A DIFFERENTIAL CIRCUIT BREAKER.
FR2930838B1 (en) * 2008-05-05 2010-04-16 Schneider Electric Ind Sas MODULAR ELECTRICAL DEVICE
EP2559048A4 (en) * 2010-04-14 2013-09-25 Abb Spa Residual current protection device
FR2982409B1 (en) * 2011-11-07 2023-03-10 Schneider Electric Ind Sas METHOD FOR MANUFACTURING A MAGNETIC TORUS FOR A DIRECT CURRENT SENSOR, AND TORUS MADE ACCORDING TO THIS METHOD
FR3016078A1 (en) 2013-12-27 2015-07-03 Legrand France ELECTRICAL EQUIPMENT WITH MODULAR FORMAT
CN104134589B (en) * 2014-07-17 2016-01-20 正泰集团股份有限公司 A kind of low-voltage circuit breaker with residual current trip gear

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Publication number Priority date Publication date Assignee Title
FR2720548B1 (en) * 1994-05-31 1996-08-30 Legrand Sa Differential release device.
US5510759A (en) * 1994-06-23 1996-04-23 Eaton Corporation Miniature circuit breaker with ground fault electronics supported by stiff conductors for easy assembly
FR2723470A1 (en) * 1994-08-04 1996-02-09 Legrand Sa BREAKER
FR2731837B1 (en) * 1995-03-16 1997-06-06 Legrand Sa SINGLE POLE AND NEUTRAL DIFFERENTIAL CIRCUIT BREAKER

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2457568C2 (en) * 2007-06-29 2012-07-27 Шнейдер Электрик Эндюстри Сас Electric commutation device having additional electric function
EP3029704A1 (en) 2014-12-01 2016-06-08 Hager-Electro SAS (Société par Actions Simplifiée) Differential circuit breaker
WO2016087768A1 (en) 2014-12-01 2016-06-09 Hager-Electro Sas (Société Par Actions Simplifiée) Differential protection device

Also Published As

Publication number Publication date
PL332348A1 (en) 1999-10-11
EP0948021A1 (en) 1999-10-06
ATE331295T1 (en) 2006-07-15
DE69931989D1 (en) 2006-08-03
ES2267235T3 (en) 2007-03-01
DE69931989T2 (en) 2007-03-01
FR2777110A1 (en) 1999-10-08
HUP9900869A3 (en) 2000-10-30
HUP9900869A2 (en) 1999-12-28
HU9900869D0 (en) 1999-06-28
FR2777110B1 (en) 2000-06-23
PL193817B1 (en) 2007-03-30

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