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EP0780860A1 - Auxiliary switch for circuit breaker and corresponding circuit breaker - Google Patents

Auxiliary switch for circuit breaker and corresponding circuit breaker Download PDF

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Publication number
EP0780860A1
EP0780860A1 EP96402756A EP96402756A EP0780860A1 EP 0780860 A1 EP0780860 A1 EP 0780860A1 EP 96402756 A EP96402756 A EP 96402756A EP 96402756 A EP96402756 A EP 96402756A EP 0780860 A1 EP0780860 A1 EP 0780860A1
Authority
EP
European Patent Office
Prior art keywords
auxiliary switch
housing
section
control rod
switch according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP96402756A
Other languages
German (de)
French (fr)
Other versions
EP0780860B1 (en
Inventor
Christian Combas
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 SA
Legrand SNC
Original Assignee
Legrand SA
Legrand SNC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from FR9515136A external-priority patent/FR2728383B1/en
Application filed by Legrand SA, Legrand SNC filed Critical Legrand SA
Publication of EP0780860A1 publication Critical patent/EP0780860A1/en
Application granted granted Critical
Publication of EP0780860B1 publication Critical patent/EP0780860B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
    • H01H85/545—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers with pivoting fuse carrier
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • H01H71/462—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts housed in a separate casing, juxtaposed to and having the same general contour as the main casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/10—Adaptation for built-in fuses
    • H01H9/104—Adaptation for built-in fuses with interlocking mechanism between switch and fuse

Definitions

  • the present invention relates generally to circuit breakers.
  • a circuit breaker comprises, overall, in a housing, on the one hand, two contact members, which, established at a distance from each other, are each respectively in electrical connection with two connection terminals accessible from outside the housing, and, on the other hand, a fuse holder, frequently called “gripper", which has a recess specific to the housing of a fuse cartridge, and which, too, accessible to the user outside the housing, is mounted movable in this housing between two positions, namely, a closed position, for which its recess extends from one to the other of the two contact members, so that a fuse cartridge present in this recess then establishes an electrical connection between them, and an open position, for which, apart from these contact members, its recess extends partly out of the housing, so that '' the user can install a cartridge fuse or remove it.
  • the present invention generally aims to develop this arrangement, by implementing it for a switch capable of controlling the supply of another circuit, and for example that of an indicator, depending on the position. opening or closing, of the fuse holder of the circuit breaker.
  • an auxiliary switch comprising, in a housing, a contact blade, which, under the control of an actuating lever mounted pivoting and sliding, is, at least in part, movable between two positions, one closing, for which it is applied against a fixed contact, the other opening, for which it is instead removed from this fixed contact.
  • the actuation lever is under the control of a push-button, without it being envisaged to associate any control rod with it.
  • This auxiliary switch cannot therefore be easily associated with a circuit breaker of the type in question, and this moreover poses a particular problem, insofar as its fuse holder having a relatively large clearance, the cam means that it comprises must only intervene momentarily, on the fly, on such an auxiliary switch.
  • the present invention firstly more specifically relates to an auxiliary switch meeting this double requirement.
  • This auxiliary switch which is of the type comprising, in a housing, at least one contact blade, which, under the control of an actuating lever mounted pivoting and sliding, is, at least in part, mounted movable between two positions , one for closing, for which it is applied against a fixed contact, the other for opening, for which it is on the contrary spaced from this fixed contact, is generally characterized in that, the lever actuator laterally comprising a control rod, which, for its intervention, protrudes from the housing by means of a buttonhole thereof, this buttonhole locally forms, apart from its main part, a lobe exhaust which is suitable for receiving this control rod.
  • the fuse holder of the circuit breaker directs this control rod towards the exhaust lobe of the buttonhole in which it is struggling , and this fuse holder can thus continue its journey without there being any more interference between it and this control rod.
  • the present invention also relates to a circuit breaker, the fuse holder of which has cam means established accordingly.
  • the auxiliary switch 10 comprises, in a manner known per se, in a housing 11, at least one contact blade 12A , which, under the control of an actuating lever 14 mounted to pivot and slide according to arrangements described in more detail later, is, at least in part, movably mounted between two positions, one closed, shown in FIG. 3, for which it is in application against a fixed contact 15A, the other opening, shown in FIG. 7B, for which it is on the contrary moved away from this fixed contact 15A.
  • this auxiliary switch 10 constitutes a modular device.
  • Its housing 11 is therefore in the general form of a plate, with two main faces 16 parallel to one another, and, along its contour, a rear face 17, two side faces 18 substantially parallel to each other and perpendicular to the rear face 17, and a front face 19, which, apart from a projecting part 20 in its median zone, is substantially parallel to the rear face 17.
  • the rear face 17 has a notch 21, with the aid of which a latching device, not shown, may intervene for fixing the assembly on a support rail of standardized type, also not shown. .
  • the housing 11 is formed, on the one hand, by a base 22, which forms the body of the box, and the bottom 23 of which forms one of the main faces 16, and, on the other hand , a cover 24, which, attached to the base 22, is duly secured thereto, and which forms the other of the main faces 16.
  • the auxiliary switch 10 comprises a second contact blade 12B, which, also under the control of the actuating lever 14, is also at least partially mounted movable between two positions, one closed, shown in Figure 7B, for which it is applied against a second fixed contact 15B, the other open, shown in Figure 3, for which it is instead of this fixed contact 15B.
  • the auxiliary switch 10 constitutes an inverter, the two fixed contacts 15A, 15B being carried by the same metal strip 25 by which they are connected to an input terminal 26 while the two contact blades 12A, 12B are each individually in connection with two output terminals 27A, 27B and one is in the closed position while the other is in the open position, and reciprocally.
  • the contact blade 12A is embedded on the housing 11 at one of its ends, and, by its other end, which is free, it cooperates with the fixed contact 15A with which it is associated.
  • the contact blade 12A comprises two sections, namely, a fixed section 28, which is in connection with the output terminal 27A, and which is inserted between pads 30 coming from a integral with the bottom 23 of the base 22 of the housing 11, and a movable section 31, which is subjected to the actuation lever 14, according to arrangements described in more detail later, and which cooperates with the fixed contact 15A.
  • this fixed section 28 and this movable section 31 form an acute dihedral between them.
  • the second contact blade 12B is embedded on the housing 11 at one of its ends, and, by its other end, which is free, it cooperates with the fixed contact 15B with which it is associated.
  • this contact blade 12B comprises, in the embodiment shown, a fixed section 33, which is in connection with the output terminal 27B, and which is inserted between the part of the flange 34 of the base 22 of the housing 11 forming the rear face 17 of the latter and of the studs 35 coming in one piece from the bottom 23 of this base 22, and a movable section 36, which is subjected to the actuation lever 14, and by which it cooperates with the fixed contact 15B.
  • this fixed section 33 and this movable section 36 form an obtuse dihedral between them.
  • the input terminal 26 opens on one of the side faces 18 of the housing 11, while the output terminals 27A, 27B open on the opposite side face 18, being stepped thereon.
  • clamping screw 37 is accessible from the front face 19 of the housing 11.
  • the actuation lever 14 comprises, laterally, a control rod 38, which, for its intervention, and according to methods described in more detail later, protrudes from the housing 11 by means of a buttonhole 39 of the latter, and this buttonhole 39 forms, locally, away from its main part 40, an exhaust lobe 42 which is capable of receiving this control rod 38.
  • the actuating lever 14 is generally in the form of a hollow rod, with a U-shaped cross section.
  • flanks 44 which are substantially parallel to each other, and which, apart from an inflection in their median zone, are in practice substantially rectilinear, and, on the other hand, a bottom 45 , flat, which is substantially perpendicular to the sides 44.
  • the sides 44 form a groove 46 between them.
  • this groove 46 is open, while, at the other of its ends, 48, it is closed, one of the sides 44 joining the other by a rounded profile 49.
  • the actuation lever 14 thus generally formed has its concavity facing the bottom 23 of the base 22 of the housing 11, and, for its guidance, its width L1, that is to say the distance externally separating one of the 'other two flanks 44, is substantially equal to the distance L2 internally separating the bottom 23 of the cover 24, as shown schematically in broken lines in Figure 5, while being slightly less than this distance L2.
  • the control rod 38 is carried by a solid 50, which, coming in one piece from the bottom 45, substantially perpendicular thereto, extends between the sides 44, at a distance from one and the other of the ends 47, 48, but closer to the open end 47 than to the closed end 48.
  • control rod 38 comprises, at its base, for its guidance, a section 52 of larger section, whose diameter D1 corresponds substantially to the width L3 of the buttonhole 39 of the housing 11, while being slightly less than this width L3.
  • it also includes a section 53 whose diameter D2 is intermediate between that D1 of the section 52 and its own diameter D3.
  • the actuation lever 14 is engaged, by its groove 46, on the side of its open end 47, with a lug 54 secured to the housing 11, FIG. 3.
  • a cylindrical lug 54 of circular cross section, which is in one piece with the bottom 23 of the base 22 of the housing 11, and whose diameter D4 is substantially equal to the width L4 internally separating from one another the two sides 44 of the actuating lever 14, while being slightly less than this width L4.
  • the actuation lever 14 For its action on the contact blade 12A, the actuation lever 14 comprises, transversely, in its median zone, that is to say between its ends 47, 48, a recess 55, which in practice affects its only flanks 44, without interference with its bottom 45, and thanks to which it is crossed right through by this contact blade 12A.
  • the actuation lever 14 has, at the edge of this recess 55, a boss 56, with rounded profile, which is in one piece with one of its sides 44, in this case that opposite to that having a rounded profile 49 at the closed end 48, in a way forming a local bulge of this sidewall 44, and by which it is able to act on the contact blade 12A.
  • the block 50 carrying the control rod 38 also extends at the edge of the recess 55, but on the side of the latter opposite the boss 56, and it is in one piece with the sidewall 44 having a rounded profile 49 at the closed end 48.
  • the contact blade 12A bears elastically, by itself, on the fixed contact 15A with which it is associated, and the boss 56 of the actuating lever 14 is located same side of this contact blade 12A as this fixed contact 15A, a short distance from the contact blade 12A.
  • the contact blade 12B extends, on the other side of the control rod 38 of the actuating lever 14 relative to the contact blade 12A.
  • the actuation lever 14 is capable of acting on this contact blade 12B by one of its ends, in this case the closed end 48 having a rounded profile 49.
  • At least one of the contact blades 12A, 12B is at least partially elastically deformable, and thus constitutes by itself elastic means suitable for stable maintenance of the actuation lever 14 in at least one of its positions .
  • this is the contact blade 12B, the latter being elastically constrained by the actuating lever 14 when it is in the closed position.
  • the exhaust lobe 42 formed by the buttonhole 39 of the housing 11 extends in practice at one of the ends of the part current 40 of it.
  • this exhaust lobe 42 is reduced in practice to a bent extension of the main part 40, by connecting to the latter by a largely rounded section 57, and this main part 40 is substantially rectilinear.
  • the actuation lever 14 comprises, laterally, on the side opposite to its control rod 38, by means of the block 50 carrying the latter, a bore 58, which is aligned, axially, with this control rod 38, and in correspondence with which the housing 11, and, more precisely, the cover 24 thereof, has a buttonhole 59 of the same type as the buttonhole 39 which it presents for the control rod 38 .
  • circuit breaker 60 with which the auxiliary switch 10 thus formed can be associated will not be described in all its details here, insofar as it is described in French patent application No 94 15332, and where, at In this regard, the description thereof can be considered as an integral part of the present patent application.
  • this fuse holder 61 moves along a curved path.
  • this fuse holder 61 has, projecting, two ribs 63, by which, as shown schematically in broken lines in Figure 9, it is engaged with a rib 64 integral with the housing 62 of the circuit breaker 60 .
  • the fuse holder 61 of the circuit breaker 60 comprises cam means 65 on the path of which the housing 62 of this circuit breaker 60 has an opening 66 suitable for the passage of the rod of control 38 of its actuating lever 14, this opening 66 being in practice constituted by a buttonhole of the same type as the buttonholes 39, 59 of the housing 11 of the auxiliary switch 10.
  • the cam means 65 have a groove 67 which is hollow in the fuse holder 61, between its ribs 63, for the engagement of the control rod 38, as shown schematically in broken lines in Figure 9.
  • this groove 67 has, successively, according to the invention, two sections, which are offset transversely with respect to each other, namely, a first section 68, which opens, freely, by an outlet 69, at the end of the fuse holder 61, on the edge thereof, and a second section 70, which, on the contrary, has a blind bottom 71, with, at the connection of these two sections 68, 70, of a hand, on a first of the sides of this groove 67, a drive plate 72, which, facing the blind bottom 71 of the second section 70, is suitable for driving the control rod 38, and, on the other hand , on the other side of this groove 67, between the blind bottom 71 of the second section 70 and the drive panel 72, a deflection panel 74, which, facing the outlet 69 of the first section 68, is suitable for deflect this control rod 38.
  • the groove 67 is also generally curved, like the curved path of the fuse holder 61.
  • the fuse holder 61 If, according to the arrows F1 in FIGS. 8, 10A and 10B, the fuse holder 61 is controlled to open, it first of all has an idle stroke for which it remains without incidence on the control rod 38 of the switch auxiliary 10, until the drive plate 72 of its groove 67 comes into contact with this control rod 38, as shown diagrammatically in broken lines in FIG. 10A.
  • the actuation lever 14 of this auxiliary switch 10 comes, by its boss 56, to bear on the contact blade 12A, which causes the passage of the latter in open position, however, by its closed end 48, it also comes to bear on the contact blade 12B.
  • the actuation lever 14 ensures the passage into the closed position of the contact blade 12B, while accentuating the opening of the contact blade 12A.
  • the control rod 38 of the auxiliary switch 10 arrives at the right of the exhaust lobe 42 of the buttonhole 39 of the housing 11, it is directed towards this exhaust lobe 42 by the largely rounded section 57 of this buttonhole 39, so that, as shown in FIG. 10B, the fuse holder 61 of the circuit breaker 60 can continue its path freely, until 'to its final opening position.
  • the groove 67 forming the cam means 65 of this fuse holder 61 again engages, at the favor of the outlet 69 of its first section 68, on the control rod 38 of the actuation lever 14 of the auxiliary switch 10, then, by its deflection face 74, it causes the release of this control rod 38 from the lobe exhaust 42 of the buttonhole 39 of the housing 11 of this auxiliary switch 10, until bringing it back into the main part 40 of this buttonhole 39, and, finally, by the blind bottom 71 of its second section 70, it acts on this control rod 38 in the direction causing the return of the actuating lever 14 of the auxiliary switch 10 to its initial position.
  • the contact blades 12A, 12B of the auxiliary switch 10 return themselves elastically to their initial position, in this case a closed position for the contact blade 12A and an open position for the blade. contact 12B.
  • the bore 58 of the actuating lever 14 can allow the cascade control of another auxiliary switch, or of another electrical device, not shown.
  • control rod 38 of the actuating lever 14 of this other auxiliary switch or a control rod provided in a similar manner for this purpose on this other electrical appliance, is engaged in this bore 58.
  • the present invention is moreover not limited to the embodiment and / or implementation described and shown, but encompasses any variant.

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  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

The switch includes a release lobe (42) which extends to one end of an approximately straight current part (40) and reduces in size at an extension, elbowed (39) at the end of the current part, and to which it is linked by a broadly rounded section (57). The lever (14) has a groove (46) which engages a fixed lug (54) and a hollow which is crossed by a first contact strip (12A) which engages a first fixed contact (15A). When the lever moves, a boss at the edge of the hollow pushes the strip away from the contact and the rounded end of the lever acts on a second contact strip (12B) to press it against a second fixed contact (15B).

Description

La présente invention concerne d'une manière générale les coupe-circuit.The present invention relates generally to circuit breakers.

Ainsi qu'on le sait, un coupe-circuit comporte, globalement, dans un boîtier, d'une part, deux organes de contact, qui, établis à distance l'un de l'autre, sont chacun respectivement en liaison électrique avec deux bornes de connexion accessibles de l'extérieur du boîtier, et, d'autre part, un porte-fusible, fréquemment appelé "préhenseur", qui présente un évidement propre au logement d'une cartouche fusible, et qui, lui aussi accessible à l'usager de l'extérieur du boîtier, est monté mobile dans ce boîtier entre deux positions, à savoir, une position de fermeture, pour laquelle son évidement s'étend de l'un à l'autre des deux organes de contact, en sorte qu'une cartouche fusible présente dans cet évidement établit alors une liaison électrique entre ceux-ci, et une position d'ouverture, pour laquelle, écarté de ces organes de contact, son évidement s'étend pour partie hors du boîtier, en sorte qu'il est possible à l'usager d'y mettre en place une cartouche fusible ou de l'en retirer.As is known, a circuit breaker comprises, overall, in a housing, on the one hand, two contact members, which, established at a distance from each other, are each respectively in electrical connection with two connection terminals accessible from outside the housing, and, on the other hand, a fuse holder, frequently called "gripper", which has a recess specific to the housing of a fuse cartridge, and which, too, accessible to the user outside the housing, is mounted movable in this housing between two positions, namely, a closed position, for which its recess extends from one to the other of the two contact members, so that a fuse cartridge present in this recess then establishes an electrical connection between them, and an open position, for which, apart from these contact members, its recess extends partly out of the housing, so that '' the user can install a cartridge fuse or remove it.

Dans la demande de brevet européen déposée le 19 décembre 1995 sous le No 95402874.2, il a été proposé d'associer à ce coupe-circuit un appareil auxiliaire, en tirant parti du débattement de son porte-fusible de l'une à l'autre de ses positions pour la commande de cet appareil auxiliaire.In the European patent application filed on December 19, 1995 under No. 95402874.2, it was proposed to associate this circuit breaker with an auxiliary device, taking advantage of the travel of its fuse holder from one to the other of its positions for the control of this auxiliary device.

A cet effet, il a été prévu de ménager sur ce porte-fusible des moyens de came, et de doter l'appareil auxiliaire d'une tige de commande qui, faisant saillie hors de son boîtier, est en prise avec ceux-ci.To this end, provision has been made to provide cam means on this fuse holder, and to provide the auxiliary device with a control rod which, projecting from its housing, is engaged therewith.

La présente invention a d'une manière générale pour objet de développer cette disposition, en la mettant en oeuvre pour un interrupteur susceptible de commander l'alimentation d'un autre circuit, et par exemple celle d'un voyant, en fonction de la position d'ouverture ou de fermeture, du porte-fusible du coupe-circuit.The present invention generally aims to develop this arrangement, by implementing it for a switch capable of controlling the supply of another circuit, and for example that of an indicator, depending on the position. opening or closing, of the fuse holder of the circuit breaker.

Il a déjà été proposé, dans le brevet français publié sous le No 2 638 562, un interrupteur auxiliaire comportant, dans un boîtier, une lame de contact, qui, sous le contrôle d'un levier d'actionnement monté pivotant et coulissant, est, au moins en partie, montée mobile entre deux positions, l'une de fermeture, pour laquelle elle est en application contre un contact fixe, l'autre d'ouverture, pour laquelle elle est au contraire écartée de ce contact fixe.It has already been proposed, in the French patent published under No. 2,638,562, an auxiliary switch comprising, in a housing, a contact blade, which, under the control of an actuating lever mounted pivoting and sliding, is, at least in part, movable between two positions, one closing, for which it is applied against a fixed contact, the other opening, for which it is instead removed from this fixed contact.

Mais, pour sa commande, le levier d'actionnement est sous le contrôle d'un poussoir, sans qu'il soit envisagé d'y associer une quelconque tige de commande.However, for its control, the actuation lever is under the control of a push-button, without it being envisaged to associate any control rod with it.

Cet interrupteur auxiliaire ne peut donc pas être aisément associé à un coupe-circuit du genre en cause, et celui-ci pose par ailleurs un problème particulier, dans la mesure où, son porte-fusible ayant un débattement relativement important, les moyens de came qu'il comporte ne doivent intervenir que momentanément, à la volée, sur un tel interrupteur auxiliaire.This auxiliary switch cannot therefore be easily associated with a circuit breaker of the type in question, and this moreover poses a particular problem, insofar as its fuse holder having a relatively large clearance, the cam means that it comprises must only intervene momentarily, on the fly, on such an auxiliary switch.

La présente invention a tout d'abord plus précisément pour objet un interrupteur auxiliaire répondant à cette double exigence.The present invention firstly more specifically relates to an auxiliary switch meeting this double requirement.

Cet interrupteur auxiliaire, qui est du genre comportant, dans un boîtier, au moins une lame de contact, qui, sous le contrôle d'un levier d'actionnement monté pivotant et coulissant, est, au moins en partie, montée mobile entre deux positions, l'une de fermeture, pour laquelle elle est en application contre un contact fixe, l'autre d'ouverture, pour laquelle elle est au contraire écartée de ce contact fixe, est d'une manière générale caractérisé en ce que, le levier d'actionnement comportant latéralement une tige de commande, qui, pour son intervention, fait saillie hors du boîtier à la faveur d'une boutonnière de celui-ci, cette boutonnière forme, localement, à l'écart de sa partie courante, un lobe d'échappement qui est apte à recevoir cette tige de commande.This auxiliary switch, which is of the type comprising, in a housing, at least one contact blade, which, under the control of an actuating lever mounted pivoting and sliding, is, at least in part, mounted movable between two positions , one for closing, for which it is applied against a fixed contact, the other for opening, for which it is on the contrary spaced from this fixed contact, is generally characterized in that, the lever actuator laterally comprising a control rod, which, for its intervention, protrudes from the housing by means of a buttonhole thereof, this buttonhole locally forms, apart from its main part, a lobe exhaust which is suitable for receiving this control rod.

Ainsi, après avoir momentanément entraîné, par ses moyens de came, la tige de commande de l'interrupteur auxiliaire, le porte-fusible du coupe-circuit dirige cette tige de commande vers le lobe d'échappement de la boutonnière dans laquelle elle se débat, et ce porte-fusible peut ainsi poursuivre son trajet sans qu'il n'y ait plus une quelconque interférence entre lui et cette tige de commande.Thus, after having momentarily driven, by its cam means, the control rod of the auxiliary switch, the fuse holder of the circuit breaker directs this control rod towards the exhaust lobe of the buttonhole in which it is struggling , and this fuse holder can thus continue its journey without there being any more interference between it and this control rod.

Au retour, les moyens de came de ce porte-fusible ramènent la tige de commande dans la partie courante de la boutonnière, pour son entraînement dans le sens inverse du précédent.On return, the cam means of this fuse holder bring the control rod into the current part of the buttonhole, for its drive in the opposite direction to the previous one.

La présente invention a encore pour objet un coupe-circuit dont le porte-fusible présente des moyens de came établis en conséquence.The present invention also relates to a circuit breaker, the fuse holder of which has cam means established accordingly.

Les objets de l'invention, leurs caractéristiques et leurs avantages, 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 interrupteur auxiliaire suivant l'invention, vu du côté du couvercle de son boîtier ;
  • la figure 2 en est une autre vue en perspective, vu du côté du socle de son boîtier ;
  • la figure 3 en est, avec un arrachement local, une vue en élévation, vu de l'intérieur, et couvercle de boîtier enlevé, suivant la flèche III de la figure 1 ;
  • la figure 4 est, à échelle supérieure, et avec un arrachement local, une vue en élévation du levier d'actionnement que comporte cet interrupteur auxiliaire ;
  • la figure 5 est une vue en plan de ce levier d'actionnement, suivant la flèche V de la figure 4 ;
  • la figure 6 en est une vue en perspective ;
  • les figures 7A et 7B sont, avec des arrachements locaux, des vues en élévation, qui, déduites de celle de la figure 3, illustrent, chacune respectivement, deux phases successives de fonctionnement de l'interrupteur auxiliaire suivant l'invention ;
  • la figure 8 est une vue partielle en élévation du porte-fusible du coupe-circuit auquel cet interrupteur auxiliaire peut être associé ;
  • la figure 9 est une vue partielle en coupe transversale de ce porte-fusible, suivant la ligne IX-IX de la figure 8 ;
  • les figures 10A, 10B et 10C sont des vues partielles en plan qui, reprenant celle de la figure 8, illustrent diverses phases successives de fonctionnement de l'ensemble.
The objects of the invention, their characteristics and their advantages will become apparent from the description which follows, by way of example, with reference to the appended schematic drawings in which:
  • Figure 1 is a perspective view of an auxiliary switch according to the invention, seen from the side of the cover of its housing;
  • Figure 2 is another perspective view, seen from the side of the base of its housing;
  • Figure 3 is, with a local cutaway, an elevational view, seen from the inside, and housing cover removed, according to arrow III of Figure 1;
  • Figure 4 is, on a larger scale, and with a cutaway, an elevational view of the actuating lever that includes this auxiliary switch;
  • Figure 5 is a plan view of this actuating lever, according to arrow V in Figure 4 ;
  • Figure 6 is a perspective view;
  • FIGS. 7A and 7B are, with local cutaway views, in elevation, which, deduced from that of FIG. 3, illustrate, each respectively, two successive phases of operation of the auxiliary switch according to the invention;
  • Figure 8 is a partial elevational view of the fuse holder of the circuit breaker with which this auxiliary switch can be associated;
  • Figure 9 is a partial cross-sectional view of this fuse holder, along the line IX-IX of Figure 8;
  • Figures 10A, 10B and 10C are partial plan views which, taking that of Figure 8, illustrate various successive phases of operation of the assembly.

Tel qu'illustré sur ces figures, et ainsi qu'il est mieux visible sur la figure 3, l'interrupteur auxiliaire 10 suivant l'invention comporte, de manière connue en soi, dans un boîtier 11, au moins une lame de contact 12A, qui, sous le contrôle d'un levier d'actionnement 14 monté pivotant et coulissant suivant des dispositions décrites plus en détail ultérieurement, est, au moins en partie, montée mobile entre deux positions, l'une de fermeture, représentée à la figure 3, pour laquelle elle est en application contre un contact fixe 15A, l'autre d'ouverture, représentée à la figure 7B, pour laquelle elle est au contraire écartée de ce contact fixe 15A.As illustrated in these figures, and as is better visible in Figure 3, the auxiliary switch 10 according to the invention comprises, in a manner known per se, in a housing 11, at least one contact blade 12A , which, under the control of an actuating lever 14 mounted to pivot and slide according to arrangements described in more detail later, is, at least in part, movably mounted between two positions, one closed, shown in FIG. 3, for which it is in application against a fixed contact 15A, the other opening, shown in FIG. 7B, for which it is on the contrary moved away from this fixed contact 15A.

Dans la forme de réalisation représentée, cet interrupteur auxiliaire 10 constitue un appareil modulaire.In the embodiment shown, this auxiliary switch 10 constitutes a modular device.

Son boîtier 11 se présente donc sous la forme générale d'une plaquette, avec deux faces principales 16 parallèles l'une à l'autre, et, suivant son contour, une face arrière 17, deux faces latérales 18 sensiblement parallèles entre elles et perpendiculaires à la face arrière 17, et une face avant 19, qui, abstraction faite d'une partie saillante 20 dans sa zone médiane, est sensiblement parallèle à la face arrière 17.Its housing 11 is therefore in the general form of a plate, with two main faces 16 parallel to one another, and, along its contour, a rear face 17, two side faces 18 substantially parallel to each other and perpendicular to the rear face 17, and a front face 19, which, apart from a projecting part 20 in its median zone, is substantially parallel to the rear face 17.

En pratique, la face arrière 17 présente une encoche 21, à la faveur de laquelle est susceptible d'intervenir un dispositif d'encliquetage, non représenté, pour la fixation de l'ensemble sur un rail de support de type normalisé, également non représenté.In practice, the rear face 17 has a notch 21, with the aid of which a latching device, not shown, may intervene for fixing the assembly on a support rail of standardized type, also not shown. .

Dans la forme de réalisation représentée, le boîtier 11 est formé, d'une part, d'un socle 22, qui forme corps de boîte, et dont le fond 23 forme l'une des faces principales 16, et, d'autre part, d'un couvercle 24, qui, rapporté sur le socle 22, est dûment solidarisé à celui-ci, et qui forme l'autre des faces principales 16.In the embodiment shown, the housing 11 is formed, on the one hand, by a base 22, which forms the body of the box, and the bottom 23 of which forms one of the main faces 16, and, on the other hand , a cover 24, which, attached to the base 22, is duly secured thereto, and which forms the other of the main faces 16.

Les dispositions qui précèdent sont bien connues par elles-mêmes, et, ne relevant pas en propre de la présente invention, elles ne seront pas décrites plus en détail ici.The foregoing provisions are well known in themselves, and, not pertaining specifically to the present invention, they will not be described in more detail here.

Dans la forme de réalisation représentée, l'interrupteur auxiliaire 10 suivant l'invention comporte une deuxième lame de contact 12B, qui, sous le contrôle, elle aussi, du levier d'actionnement 14, est, elle aussi, au moins en partie montée mobile entre deux positions, l'une de fermeture, représentée à la figure 7B, pour laquelle elle est en application contre un deuxième contact fixe 15B, l'autre d'ouverture, représentée à la figure 3, pour laquelle elle est au contraire écartée de ce contact fixe 15B.In the embodiment shown, the auxiliary switch 10 according to the invention comprises a second contact blade 12B, which, also under the control of the actuating lever 14, is also at least partially mounted movable between two positions, one closed, shown in Figure 7B, for which it is applied against a second fixed contact 15B, the other open, shown in Figure 3, for which it is instead of this fixed contact 15B.

Plus précisément, dans la forme de réalisation représentée, l'interrupteur auxiliaire 10 suivant l'invention constitue un inverseur, les deux contacts fixes 15A, 15B étant portés par une même bande métallique 25 par laquelle ils sont en liaison avec une borne d'entrée 26 tandis que les deux lames de contact 12A, 12B sont, elles, chacune individuellement en liaison avec deux bornes de sortie 27A, 27B et que l'une est en position de fermeture tandis que l'autre est en position d'ouverture, et réciproquement.More specifically, in the embodiment shown, the auxiliary switch 10 according to the invention constitutes an inverter, the two fixed contacts 15A, 15B being carried by the same metal strip 25 by which they are connected to an input terminal 26 while the two contact blades 12A, 12B are each individually in connection with two output terminals 27A, 27B and one is in the closed position while the other is in the open position, and reciprocally.

En pratique, la lame de contact 12A est encastrée sur le boîtier 11 à l'une de ses extrémités, et, par son autre extrémité, qui est libre, elle coopère avec le contact fixe 15A auquel elle est associée.In practice, the contact blade 12A is embedded on the housing 11 at one of its ends, and, by its other end, which is free, it cooperates with the fixed contact 15A with which it is associated.

Plus précisément, dans la forme de réalisation représentée, la lame de contact 12A comporte deux tronçons, à savoir, un tronçon fixe 28, qui est en liaison avec la borne de sortie 27A, et qui est inséré entre des plots 30 venus d'un seul tenant du fond 23 du socle 22 du boîtier 11, et un tronçon mobile 31, qui est soumis au levier d'actionnement 14, suivant des dispositions décrites plus en détail ultérieurement, et qui coopère avec le contact fixe 15A.More specifically, in the embodiment shown, the contact blade 12A comprises two sections, namely, a fixed section 28, which is in connection with the output terminal 27A, and which is inserted between pads 30 coming from a integral with the bottom 23 of the base 22 of the housing 11, and a movable section 31, which is subjected to the actuation lever 14, according to arrangements described in more detail later, and which cooperates with the fixed contact 15A.

Dans la forme de réalisation représentée, ce tronçon fixe 28 et ce tronçon mobile 31 font un dièdre aigu entre eux.In the embodiment shown, this fixed section 28 and this movable section 31 form an acute dihedral between them.

De même, la deuxième lame de contact 12B est encastrée sur le boîtier 11 à l'une de ses extrémités, et, par son autre extrémité, qui est libre, elle coopère avec le contact fixe 15B auquel elle est associée.Likewise, the second contact blade 12B is embedded on the housing 11 at one of its ends, and, by its other end, which is free, it cooperates with the fixed contact 15B with which it is associated.

Plus précisément, et comme la lame de contact 12A, cette lame de contact 12B comporte, dans la forme de réalisation représentée, un tronçon fixe 33, qui est en liaison avec la borne de sortie 27B, et qui est inséré entre la partie du rebord 34 du socle 22 du boîtier 11 formant la face arrière 17 de ce dernier et des plots 35 venus d'un seul tenant du fond 23 de ce socle 22, et un tronçon mobile 36, qui est soumis au levier d'actionnement 14, et par lequel elle coopère avec le contact fixe 15B.More precisely, and like the contact blade 12A, this contact blade 12B comprises, in the embodiment shown, a fixed section 33, which is in connection with the output terminal 27B, and which is inserted between the part of the flange 34 of the base 22 of the housing 11 forming the rear face 17 of the latter and of the studs 35 coming in one piece from the bottom 23 of this base 22, and a movable section 36, which is subjected to the actuation lever 14, and by which it cooperates with the fixed contact 15B.

Dans la forme de réalisation représentée, ce tronçon fixe 33 et ce tronçon mobile 36 font un dièdre obtus entre eux.In the embodiment shown, this fixed section 33 and this movable section 36 form an obtuse dihedral between them.

La borne d'entrée 26 ouvre sur l'une des faces latérales 18 du boîtier 11, tandis que les bornes de sortie 27A, 27B ouvrent sur la face latérale 18 opposée, en étant étagées sur celle-ci.The input terminal 26 opens on one of the side faces 18 of the housing 11, while the output terminals 27A, 27B open on the opposite side face 18, being stepped thereon.

Mais, pour chacune d'elles, la vis de serrage 37 est accessible à partir de la face avant 19 du boîtier 11.However, for each of them, the clamping screw 37 is accessible from the front face 19 of the housing 11.

Suivant l'invention, le levier d'actionnement 14 comporte, latéralement, une tige de commande 38, qui, pour son intervention, et suivant des modalités décrites plus en détail ultérieurement, fait saillie hors du boîtier 11 à la faveur d'une boutonnière 39 de celui-ci, et cette boutonnière 39 forme, localement, à l'écart de sa partie courante 40, un lobe d'échappement 42 qui est apte à recevoir cette tige de commande 38.According to the invention, the actuation lever 14 comprises, laterally, a control rod 38, which, for its intervention, and according to methods described in more detail later, protrudes from the housing 11 by means of a buttonhole 39 of the latter, and this buttonhole 39 forms, locally, away from its main part 40, an exhaust lobe 42 which is capable of receiving this control rod 38.

Dans la forme de réalisation représentée, le levier d'actionnement 14 se présente, globalement, sous la forme d'un bâtonnet creux, à section transversale en U.In the embodiment shown, the actuating lever 14 is generally in the form of a hollow rod, with a U-shaped cross section.

Il comporte ainsi, d'une part, deux flancs 44, qui sont sensiblement parallèles entre eux, et qui, abstraction faite d'une inflexion dans leur zone médiane, sont en pratique sensiblement rectilignes, et, d'autre part, un fond 45, plat, qui est sensiblement perpendiculaire aux flancs 44.It thus comprises, on the one hand, two flanks 44, which are substantially parallel to each other, and which, apart from an inflection in their median zone, are in practice substantially rectilinear, and, on the other hand, a bottom 45 , flat, which is substantially perpendicular to the sides 44.

Les flancs 44 forment entre eux une rainure 46.The sides 44 form a groove 46 between them.

A l'une des extrémités, 47, du levier d'actionnement 14, cette rainure 46 est ouverte, tandis que, à l'autre de ses extrémités, 48, elle est fermée, l'un des flancs 44 rejoignant l'autre par un profil arrondi 49.At one end, 47, of the actuating lever 14, this groove 46 is open, while, at the other of its ends, 48, it is closed, one of the sides 44 joining the other by a rounded profile 49.

Le levier d'actionnement 14 ainsi globalement constitué a sa concavité tournée vers le fond 23 du socle 22 du boîtier 11, et, pour son guidage, sa largeur L1, c'est-à-dire la distance séparant extérieurement l'un de l'autre ses deux flancs 44, est sensiblement égale à la distance L2 séparant intérieurement ce fond 23 du couvercle 24, tel que schématisé en traits interrompus sur la figure 5, tout en étant légèrement inférieure à cette distance L2.The actuation lever 14 thus generally formed has its concavity facing the bottom 23 of the base 22 of the housing 11, and, for its guidance, its width L1, that is to say the distance externally separating one of the 'other two flanks 44, is substantially equal to the distance L2 internally separating the bottom 23 of the cover 24, as shown schematically in broken lines in Figure 5, while being slightly less than this distance L2.

La tige de commande 38 est portée par un massif 50, qui, issu d'un seul tenant du fond 45, sensiblement perpendiculairement à celui-ci, s'étend entre les flancs 44, à distance de l'une et l'autre des extrémités 47, 48, mais plus près de l'extrémité 47 ouverte que de l'extrémité 48 fermée.The control rod 38 is carried by a solid 50, which, coming in one piece from the bottom 45, substantially perpendicular thereto, extends between the sides 44, at a distance from one and the other of the ends 47, 48, but closer to the open end 47 than to the closed end 48.

En pratique, la tige de commande 38 comporte, à sa base, pour son guidage, un tronçon 52 de plus grande section, dont le diamètre D1 correspond sensiblement à la largeur L3 de la boutonnière 39 du boîtier 11, tout en étant légèrement inférieur à cette largeur L3.In practice, the control rod 38 comprises, at its base, for its guidance, a section 52 of larger section, whose diameter D1 corresponds substantially to the width L3 of the buttonhole 39 of the housing 11, while being slightly less than this width L3.

Dans la forme de réalisation représentée, elle comporte, également, un tronçon 53 dont le diamètre D2 est intermédiaire entre celui D1 du tronçon 52 et son propre diamètre D3.In the embodiment shown, it also includes a section 53 whose diameter D2 is intermediate between that D1 of the section 52 and its own diameter D3.

Pour son montage pivotant et coulissant, le levier d'actionnement 14 est en prise, par sa rainure 46, du côté de son extrémité 47 ouverte, avec un ergot 54 solidaire du boîtier 11, figure 3.For its pivoting and sliding mounting, the actuation lever 14 is engaged, by its groove 46, on the side of its open end 47, with a lug 54 secured to the housing 11, FIG. 3.

Il s'agit, en pratique, d'un ergot 54 cylindrique, de section transversale circulaire, qui est d'un seul tenant avec le fond 23 du socle 22 du boîtier 11, et dont le diamètre D4 est sensiblement égal à la largeur L4 séparant intérieurement l'un de l'autre les deux flancs 44 du levier d'actionnement 14, tout en étant légèrement inférieur à cette largeur L4.It is, in practice, a cylindrical lug 54, of circular cross section, which is in one piece with the bottom 23 of the base 22 of the housing 11, and whose diameter D4 is substantially equal to the width L4 internally separating from one another the two sides 44 of the actuating lever 14, while being slightly less than this width L4.

Pour son action sur la lame de contact 12A, le levier d'actionnement 14 comporte, transversalement, dans sa zone médiane, c'est-à-dire entre ses extrémités 47, 48, un évidement 55, qui affecte en pratique ses seuls flancs 44, sans interférence avec son fond 45, et à la faveur duquel il est traversé de part en part par cette lame de contact 12A.For its action on the contact blade 12A, the actuation lever 14 comprises, transversely, in its median zone, that is to say between its ends 47, 48, a recess 55, which in practice affects its only flanks 44, without interference with its bottom 45, and thanks to which it is crossed right through by this contact blade 12A.

Plus précisément, le levier d'actionnement 14 présente, en bordure de cet évidement 55, un bossage 56, à profil arrondi, qui est d'un seul tenant avec l'un de ses flancs 44, en l'espèce celui opposé à celui présentant un profil arrondi 49 à l'extrémité 48 fermée, en formant en quelque sorte un renflement local de ce flanc 44, et par lequel il est apte à agir sur la lame de contact 12A.More specifically, the actuation lever 14 has, at the edge of this recess 55, a boss 56, with rounded profile, which is in one piece with one of its sides 44, in this case that opposite to that having a rounded profile 49 at the closed end 48, in a way forming a local bulge of this sidewall 44, and by which it is able to act on the contact blade 12A.

Le massif 50 portant la tige de commande 38 s'étend lui aussi en bordure de l'évidement 55, mais du côté de celui-ci opposé au bossage 56, et il est d'un seul tenant avec le flanc 44 présentant un profil arrondi 49 à l'extrémité 48 fermée.The block 50 carrying the control rod 38 also extends at the edge of the recess 55, but on the side of the latter opposite the boss 56, and it is in one piece with the sidewall 44 having a rounded profile 49 at the closed end 48.

En pratique, pour la position de fermeture représentée sur la figure 3, la lame de contact 12A porte élastiquement, par elle-même, sur le contact fixe 15A auquel elle est associée, et le bossage 56 du levier d'actionnement 14 se situe du même côté de cette lame de contact 12A que ce contact fixe 15A, à légère distance de la lame de contact 12A.In practice, for the closed position shown in FIG. 3, the contact blade 12A bears elastically, by itself, on the fixed contact 15A with which it is associated, and the boss 56 of the actuating lever 14 is located same side of this contact blade 12A as this fixed contact 15A, a short distance from the contact blade 12A.

La lame de contact 12B s'étend, elle, de l'autre côté de la tige de commande 38 du levier d'actionnement 14 par rapport à la lame de contact 12A.The contact blade 12B extends, on the other side of the control rod 38 of the actuating lever 14 relative to the contact blade 12A.

Le levier d'actionnement 14 est apte à agir sur cette lame de contact 12B par l'une de ses extrémités, en l'espèce l'extrémité 48 fermée présentant un profil arrondi 49.The actuation lever 14 is capable of acting on this contact blade 12B by one of its ends, in this case the closed end 48 having a rounded profile 49.

L'une au moins des lames de contact 12A, 12B est au moins en partie élastiquement déformable, et constitue ainsi par elle-même des moyens élastiques propres à un maintien stable du levier d'actionnement 14 dans l'une au moins de ses positions.At least one of the contact blades 12A, 12B is at least partially elastically deformable, and thus constitutes by itself elastic means suitable for stable maintenance of the actuation lever 14 in at least one of its positions .

En pratique, il s'agit de la lame de contact 12B, celle-ci se trouvant contrainte élastiquement par le levier d'actionnement 14 lorsqu'elle est en position de fermeture.In practice, this is the contact blade 12B, the latter being elastically constrained by the actuating lever 14 when it is in the closed position.

Dans la forme de réalisation représentée, le lobe d'échappement 42 que forme la boutonnière 39 du boîtier 11 s'étend en pratique à l'une des extrémités de la partie courante 40 de celle-ci.In the embodiment shown, the exhaust lobe 42 formed by the buttonhole 39 of the housing 11 extends in practice at one of the ends of the part current 40 of it.

Dans la forme de réalisation représentée, ce lobe d'échappement 42 se réduit en pratique à un prolongement coudé de la partie courante 40, en se raccordant à celle-ci par un tronçon largement arrondi 57, et cette partie courante 40 est sensiblement rectiligne.In the embodiment shown, this exhaust lobe 42 is reduced in practice to a bent extension of the main part 40, by connecting to the latter by a largely rounded section 57, and this main part 40 is substantially rectilinear.

Dans la forme de réalisation représentée, enfin, le levier d'actionnement 14 comporte, latéralement, du côté opposé à sa tige de commande 38, à la faveur du massif 50 portant celle-ci, un perçage 58, qui est aligné, axialement, avec cette tige de commande 38, et en correspondance avec lequel le boîtier 11, et, plus précisément, le couvercle 24 de celui-ci, présente une boutonnière 59 de même type que la boutonnière 39 qu'il présente pour la tige de commande 38.In the embodiment shown, finally, the actuation lever 14 comprises, laterally, on the side opposite to its control rod 38, by means of the block 50 carrying the latter, a bore 58, which is aligned, axially, with this control rod 38, and in correspondence with which the housing 11, and, more precisely, the cover 24 thereof, has a buttonhole 59 of the same type as the buttonhole 39 which it presents for the control rod 38 .

Le coupe-circuit 60 auquel l'interrupteur auxiliaire 10 ainsi constitué est susceptible d'être associé ne sera pas décrit dans tous ses détails ici, dans la mesure où il est décrit dans la demande de brevet français No 94 15332, et où, à cet égard, la description de celle-ci peut être considérée comme faisant partie intégrante de la présente demande de brevet.The circuit breaker 60 with which the auxiliary switch 10 thus formed can be associated will not be described in all its details here, insofar as it is described in French patent application No 94 15332, and where, at In this regard, the description thereof can be considered as an integral part of the present patent application.

Il suffira d'indiquer qu'il comporte un porte-fusible 61 monté mobile entre deux positions, l'une de fermeture, représentée à la figure 8, l'autre d'ouverture, représentée à la figure 10C.It suffices to indicate that it comprises a fuse holder 61 mounted movably between two positions, one for closing, shown in FIG. 8, the other for opening, shown in FIG. 10C.

En pratique, ce porte-fusible 61 se déplace suivant une trajectoire courbe.In practice, this fuse holder 61 moves along a curved path.

Plus précisément, il est globalement cintré, et il est en prise avec des moyens de guidage qui, solidaires du boîtier 62 de l'ensemble, sont eux-mêmes globalement cintrés de manière complémentaire.More specifically, it is generally bent, and it is engaged with guide means which, integral with the housing 62 of the assembly, are themselves generally bent in a complementary manner.

Plus précisément, encore, ce porte-fusible 61 présente, en saillie, deux nervures 63, par lesquelles, tel que schématisé en traits interrompus sur la figure 9, il est en prise avec une nervure 64 solidaire du boîtier 62 du coupe-circuit 60.More specifically, again, this fuse holder 61 has, projecting, two ribs 63, by which, as shown schematically in broken lines in Figure 9, it is engaged with a rib 64 integral with the housing 62 of the circuit breaker 60 .

Pour la commande de l'interrupteur auxiliaire 10, le porte-fusible 61 du coupe-circuit 60 comporte des moyens de came 65 sur le trajet desquels le boîtier 62 de ce coupe-circuit 60 présente une ouverture 66 propre au passage de la tige de commande 38 de son levier d'actionnement 14, cette ouverture 66 étant en pratique constituée par une boutonnière du même type que les boutonnières 39, 59 du boîtier 11 de l'interrupteur auxiliaire 10.For the control of the auxiliary switch 10, the fuse holder 61 of the circuit breaker 60 comprises cam means 65 on the path of which the housing 62 of this circuit breaker 60 has an opening 66 suitable for the passage of the rod of control 38 of its actuating lever 14, this opening 66 being in practice constituted by a buttonhole of the same type as the buttonholes 39, 59 of the housing 11 of the auxiliary switch 10.

Comme décrit dans la demande de brevet européen No 95402874.2, les moyens de came 65 comportent une rainure 67 que présente en creux le porte-fusible 61, entre ses nervures 63, pour l'engagement de la tige de commande 38, tel que schématisé en traits interrompus sur la figure 9.As described in European patent application No. 95402874.2, the cam means 65 have a groove 67 which is hollow in the fuse holder 61, between its ribs 63, for the engagement of the control rod 38, as shown schematically in broken lines in Figure 9.

En pratique, cette rainure 67 présente, successivement, suivant l'invention, deux tronçons, qui sont décalés transversalement l'un par rapport à l'autre, à savoir, un premier tronçon 68, qui ouvre, librement, par un débouché 69, à l'extrémité du porte-fusible 61, sur la tranche de celui-ci, et un deuxième tronçon 70, qui, au contraire, présente un fond borgne 71, avec, au raccordement de ces deux tronçons 68, 70, d'une part, sur un premier des flancs de cette rainure 67, un pan d'entraînement 72, qui, tourné vers le fond borgne 71 du deuxième tronçon 70, est apte à un entraînement de la tige de commande 38, et, d'autre part, sur l'autre des flancs de cette rainure 67, entre le fond borgne 71 du deuxième tronçon 70 et le pan d'entraînement 72, un pan de déviation 74, qui, tourné vers le débouché 69 du premier tronçon 68, est apte à dévier cette tige de commande 38.In practice, this groove 67 has, successively, according to the invention, two sections, which are offset transversely with respect to each other, namely, a first section 68, which opens, freely, by an outlet 69, at the end of the fuse holder 61, on the edge thereof, and a second section 70, which, on the contrary, has a blind bottom 71, with, at the connection of these two sections 68, 70, of a hand, on a first of the sides of this groove 67, a drive plate 72, which, facing the blind bottom 71 of the second section 70, is suitable for driving the control rod 38, and, on the other hand , on the other side of this groove 67, between the blind bottom 71 of the second section 70 and the drive panel 72, a deflection panel 74, which, facing the outlet 69 of the first section 68, is suitable for deflect this control rod 38.

Prise dans son ensemble, la rainure 67 est par ailleurs globalement cintrée, à l'image de la trajectoire courbe du porte-fusible 61.Taken as a whole, the groove 67 is also generally curved, like the curved path of the fuse holder 61.

Au montage, lorsque l'interrupteur auxiliaire 10 suivant l'invention est accolé au coupe-circuit 60 auquel il est associé, et que le porte-fusible 61 de ce coupe-circuit 60 est en position de fermeture, tel que représenté à la figure 8, la tige de commande 38 de l'interrupteur auxiliaire 10 est en prise avec la rainure 67 formant les moyens de came 65 que comporte le porte-fusible 61, en se situant du côté du fond borgne 71 du deuxième tronçon 70 de cette rainure 67, tel que schématisé en traits interrompus sur cette figure 8.During assembly, when the auxiliary switch 10 according to the invention is attached to the circuit breaker 60 with which it is associated, and the fuse holder 61 of this circuit breaker 60 is in the closed position, as shown in FIG. 8, the control rod 38 of the auxiliary switch 10 is engaged with the groove 67 forming the cam means 65 that comprises the fuse holder 61, located on the side of the blind bottom 71 of the second section 70 of this groove 67, as shown diagrammatically in broken lines in this FIG. 8.

Si, suivant les flèches F1 des figures 8, 10A et 10B, le porte-fusible 61 est commandé en ouverture, il a tout d'abord une course à vide pour laquelle il reste sans incidence sur la tige de commande 38 de l'interrupteur auxiliaire 10, jusqu'à ce que le pan d'entraînement 72 de sa rainure 67 vienne au contact de cette tige de commande 38, tel que schématisé en traits interrompus sur la figure 10A.If, according to the arrows F1 in FIGS. 8, 10A and 10B, the fuse holder 61 is controlled to open, it first of all has an idle stroke for which it remains without incidence on the control rod 38 of the switch auxiliary 10, until the drive plate 72 of its groove 67 comes into contact with this control rod 38, as shown diagrammatically in broken lines in FIG. 10A.

Il y a ensuite un entraînement de cette tige de commande 38 par le porte-fusible 61, suivant la partie courante 40 de la boutonnière 39 du boîtier 11 de l'interrupteur auxiliaire 10.There is then a drive of this control rod 38 by the fuse holder 61, along the current part 40 of the buttonhole 39 of the housing 11 of the auxiliary switch 10.

Dans un premier temps, et tel que représenté à la figure 7A, le levier d'actionnement 14 de cet interrupteur auxiliaire 10 vient, par son bossage 56, porter sur la lame de contact 12A, ce qui provoque le passage de celle-ci en position d'ouverture, cependant que, par son extrémité 48 fermée, il vient également porter sur la lame de contact 12B.Initially, and as shown in FIG. 7A, the actuation lever 14 of this auxiliary switch 10 comes, by its boss 56, to bear on the contact blade 12A, which causes the passage of the latter in open position, however, by its closed end 48, it also comes to bear on the contact blade 12B.

Dans un deuxième temps, et tel que représenté sur la figure 7B, le levier d'actionnement 14 assure le passage en position de fermeture de la lame de contact 12B, tout en accentuant l'ouverture de la lame de contact 12A.In a second step, and as shown in FIG. 7B, the actuation lever 14 ensures the passage into the closed position of the contact blade 12B, while accentuating the opening of the contact blade 12A.

Lorsque, comme représenté sur la figure 7B, et tel que schématisé en traits interrompus sur la figure 10B, la tige de commande 38 de l'interrupteur auxiliaire 10 arrive au droit du lobe d'échappement 42 de la boutonnière 39 du boîtier 11, elle se trouve dirigée vers ce lobe d'échappement 42 par le tronçon largement arrondi 57 de cette boutonnière 39, en sorte que, tel que représenté sur la figure 10B, le porte-fusible 61 du coupe-circuit 60 peut continuer librement son parcours, jusqu'à sa position finale d'ouverture.When, as shown in FIG. 7B, and as shown diagrammatically in broken lines in FIG. 10B, the control rod 38 of the auxiliary switch 10 arrives at the right of the exhaust lobe 42 of the buttonhole 39 of the housing 11, it is directed towards this exhaust lobe 42 by the largely rounded section 57 of this buttonhole 39, so that, as shown in FIG. 10B, the fuse holder 61 of the circuit breaker 60 can continue its path freely, until 'to its final opening position.

Lorsque ce porte-fusible 61 est ramené en position de fermeture, un processus inverse du précédent se développe.When this fuse holder 61 is returned to the closed position, a process opposite to the previous one develops.

Tout d'abord, la rainure 67 formant les moyens de came 65 de ce porte-fusible 61 vient à nouveau s'engager, à la faveur du débouché 69 de son premier tronçon 68, sur la tige de commande 38 du levier d'actionnement 14 de l'interrupteur auxiliaire 10, puis, par son pan de déviation 74, elle provoque le dégagement de cette tige de commande 38 du lobe d'échappement 42 de la boutonnière 39 du boîtier 11 de cet interrupteur auxiliaire 10, jusqu'à la ramener dans la partie courante 40 de cette boutonnière 39, et, enfin, par le fond borgne 71 de son deuxième tronçon 70, elle agit sur cette tige de commande 38 dans le sens provoquant le retour du levier d'actionnement 14 de l'interrupteur auxiliaire 10 à sa position initiale.First of all, the groove 67 forming the cam means 65 of this fuse holder 61 again engages, at the favor of the outlet 69 of its first section 68, on the control rod 38 of the actuation lever 14 of the auxiliary switch 10, then, by its deflection face 74, it causes the release of this control rod 38 from the lobe exhaust 42 of the buttonhole 39 of the housing 11 of this auxiliary switch 10, until bringing it back into the main part 40 of this buttonhole 39, and, finally, by the blind bottom 71 of its second section 70, it acts on this control rod 38 in the direction causing the return of the actuating lever 14 of the auxiliary switch 10 to its initial position.

Conjointement, les lames de contact 12A, 12B de l'interrupteur auxiliaire 10 reviennent d'elles-mêmes élastiquement à leur position initiale, en l'espèce une position de fermeture pour la lame de contact 12A et une position d'ouverture pour la lame de contact 12B.At the same time, the contact blades 12A, 12B of the auxiliary switch 10 return themselves elastically to their initial position, in this case a closed position for the contact blade 12A and an open position for the blade. contact 12B.

Si désiré, le perçage 58 du levier d'actionnement 14 peut permettre la commande en cascade d'un autre interrupteur auxiliaire, ou d'un autre appareil électrique, non représenté.If desired, the bore 58 of the actuating lever 14 can allow the cascade control of another auxiliary switch, or of another electrical device, not shown.

Il suffit pour ce faire que la tige de commande 38 du levier d'actionnement 14 de cet autre interrupteur auxiliaire, ou une tige de commande prévue de manière semblable à cet effet sur cet autre appareil électrique, soit engagée dans ce perçage 58.It suffices to do this that the control rod 38 of the actuating lever 14 of this other auxiliary switch, or a control rod provided in a similar manner for this purpose on this other electrical appliance, is engaged in this bore 58.

La présente invention ne se limite d'ailleurs pas à la forme de réalisation et/ou de mise en oeuvre décrite et représentée, mais englobe toute variante d'exécution.The present invention is moreover not limited to the embodiment and / or implementation described and shown, but encompasses any variant.

Claims (17)

Interrupteur auxiliaire pour coupe-circuit, du genre comportant, dans un boîtier (11), au moins une lame de contact (12A), qui, sous le contrôle d'un levier d'actionnement (14) monté pivotant et coulissant, est, au moins en partie, montée mobile entre deux positions, l'une de fermeture, pour laquelle elle est en application contre un contact fixe (15A), l'autre d'ouverture, pour laquelle elle est au contraire écartée de ce contact fixe, caractérisé en ce que, le levier d'actionnement (14) comportant latéralement une tige de commande (38), qui, pour son intervention, fait saillie hors du boîtier (11) à la faveur d'une boutonnière (39) de celui-ci, cette boutonnière (39) forme, localement, à l'écart de sa partie courante (40), un lobe d'échappement (42) qui est apte à recevoir ladite tige de commande (38).Auxiliary switch for circuit breaker, of the type comprising, in a housing (11), at least one contact blade (12A), which, under the control of an actuating lever (14) mounted to pivot and slide, is, at least in part, movable mounted between two positions, one for closing, for which it is applied against a fixed contact (15A), the other for opening, for which it is on the contrary removed from this fixed contact, characterized in that, the actuation lever (14) laterally comprising a control rod (38), which, for its intervention, projects out of the housing (11) by means of a buttonhole (39) thereof ci, this buttonhole (39) forms, locally, away from its main part (40), an exhaust lobe (42) which is capable of receiving said control rod (38). Interrupteur auxiliaire suivant la revendication 1, caractérisé en ce que le lobe d'échappement (42) que forme la boutonnière (39) du boîtier (11) s'étend à l'une des extrémités de sa partie courante (40).Auxiliary switch according to claim 1, characterized in that the exhaust lobe (42) formed by the buttonhole (39) of the housing (11) extends at one end of its main part (40). Interrupteur auxiliaire suivant la revendication 2, caractérisé en ce que le lobe d'échappement (42) que forme la boutonnière (39) du boîtier (11) se réduit à un prolongement coudé de sa partie courante (39), en se raccordant à celle-ci par un tronçon largement arrondi (57).Auxiliary switch according to claim 2, characterized in that the exhaust lobe (42) formed by the buttonhole (39) of the housing (11) is reduced to an angled extension of its current part (39), by connecting to that -this by a largely rounded section (57). Interrupteur auxiliaire suivant l'une quelconque des revendications 1 à 3, caractérisé en ce que la partie courante (40) de la boutonnière (39) du boîtier (11) est sensiblement rectiligne.Auxiliary switch according to any one of claims 1 to 3, characterized in that the main part (40) of the buttonhole (39) of the housing (11) is substantially rectilinear. Interrupteur auxiliaire suivant l'une quelconque des revendications 1 à 4, caractérisé en ce que, pour son montage pivotant et coulissant, le levier d'actionnement (14) comporte une rainure (46) par laquelle il est en prise avec un ergot (54) du boîtier (11).Auxiliary switch according to any one of Claims 1 to 4, characterized in that, for its pivoting and sliding mounting, the actuation lever (14) has a groove (46) by which it is engaged with a lug (54 ) of the housing (11). Interrupteur auxiliaire suivant l'une quelconque des revendications 1 à 5, caractérisé en ce que le levier d'actionnement (14) comporte un évidement (55) à la faveur duquel il est traversé de part en part par la lame de contact (12A), et, en bordure de cet évidement (55), il présente un bossage (56) par lequel il est apte à agir sur cette lame de contact (12A).Auxiliary switch according to any one of claims 1 to 5, characterized in that the actuation lever (14) has a recess (55) through which it is traversed right through by the contact blade (12A), and, at the edge of this recess (55), it has a boss (56) by which it is able to act on this contact blade (12A). Interrupteur auxiliaire suivant la revendication 6, caractérisé en ce que, en position de fermeture, la lame de contact (12A) porte élastiquement, par elle-même, sur le contact fixe (15A) auquel elle est associée, et le bossage (56) du levier d'actionnement (14) se situe du même côté de cette lame de contact (12A) que ce contact fixe (15A).Auxiliary switch according to claim 6, characterized in that, in the closed position, the contact blade (12A) bears elastically, by itself, on the fixed contact (15A) with which it is associated, and the boss (56) the actuating lever (14) is located on the same side of this contact blade (12A) as this fixed contact (15A). Interrupteur auxiliaire suivant l'une quelconque des revendications 1 à 7, caractérisé en ce que la lame de contact (12A) est encastrée sur le boîtier (11) à l'une de ses extrémités, et, par son autre extrémité, qui est libre, elle coopère avec le contact fixe (15A) auquel elle est associée.Auxiliary switch according to any one of claims 1 to 7, characterized in that the contact blade (12A) is embedded on the housing (11) at one of its ends, and by its other end which is free , it cooperates with the fixed contact (15A) with which it is associated. Interrupteur auxiliaire suivant l'une quelconque des revendications 1 à 8, caractérisé en ce qu'il comporte une deuxième lame de contact (12B), qui, sous le contrôle, elle aussi, du levier d'actionnement (14), est, au moins en partie, montée mobile entre deux positions, l'une de fermeture, pour laquelle elle est en application contre un deuxième contact fixe (15B), l'autre d'ouverture, pour laquelle elle est au contraire écartée de ce contact fixe (15B).Auxiliary switch according to any one of claims 1 to 8, characterized in that it comprises a second contact blade (12B), which, also under the control of the actuating lever (14), is, at less partially, movable mounted between two positions, one closing, for which it is applied against a second fixed contact (15B), the other opening, for which it is on the contrary removed from this fixed contact ( 15B). Interrupteur auxiliaire suivant la revendication 9, caractérisé en ce que la deuxième lame de contact (12B) s'étend de l'autre côté de la tige de commande (38) du levier d'actionnement (14) par rapport à la première.Auxiliary switch according to claim 9, characterized in that the second contact blade (12B) extends on the other side of the control rod (38) of the actuation lever (14) relative to the first. Interrupteur auxiliaire suivant l'une quelconque des revendications 9, 10, caractérisé en ce que le levier d'actionnement (14) est apte à agir sur la deuxième lame de contact (12B) par l'une de ses extrémités.Auxiliary switch according to any one of claims 9, 10, characterized in that the actuation lever (14) is capable of acting on the second contact blade (12B) by one of its ends. Interrupteur auxiliaire suivant la revendication 11, caractérisé en ce que l'extrémité (48) par laquelle le levier d'actionnement (14) est apte à agir sur la lame de contact (12B) a un profil arrondi (49).Auxiliary switch according to claim 11, characterized in that the end (48) by which the actuating lever (14) is capable of acting on the contact blade (12B) has a rounded profile (49). Interrupteur auxiliaire suivant l'une quelconque des revendications 9 à 12, caractérisé en ce que la deuxième lame de contact (12B) est encastrée sur le boîtier (11) à l'une de ses extrémités, et, par son autre extrémité, qui est libre, elle coopère avec le contact fixe (15B) auquel elle est associée.Auxiliary switch according to any one of claims 9 to 12, characterized in that the second contact blade (12B) is embedded on the housing (11) at one of its ends, and, by its other end, which is free, it cooperates with the fixed contact (15B) with which it is associated. Interrupteur auxiliaire suivant l'une quelconque des revendications 9 à 13, caractérisé en ce que l'une au moins des lames de contact (12A, 12B) est au moins en partie élastiquement déformable et constitue ainsi par elle-même des moyens élastiques propres à un maintien stable du levier d'actionnement (14) dans l'une au moins des positions de celui-ci.Auxiliary switch according to any one of Claims 9 to 13, characterized in that at least one of the contact blades (12A, 12B) is at least partially elastically deformable and thus constitutes in itself elastic means suitable for stable maintenance of the actuating lever (14) in at least one of the positions thereof. Interrupteur auxiliaire suivant l'une quelconque des revendications 1 à 14, caractérisé en ce que le levier d'actionnement (14) comporte, latéralement, du côté opposé à sa tige de commande (38), un perçage (58), qui est aligné, axialement, avec ladite tige de commande (38), et en correspondance avec lequel le boîtier (11) présente une boutonnière (59) de même type que la boutonnière (39) qu'il présente pour cette tige de commande (38).Auxiliary switch according to any one of claims 1 to 14, characterized in that the actuation lever (14) has, laterally, on the side opposite its control rod (38), a hole (58), which is aligned , axially, with said control rod (38), and in correspondence with which the housing (11) has a buttonhole (59) of the same type as the buttonhole (39) which it has for this control rod (38). Interrupteur auxiliaire suivant l'une quelconque des revendications 1 à 15, caractérisé en ce que, le porte-fusible (61) du coupe-circuit (60) auquel il est associé comportant, pour sa commande, des moyens de came (65) sur le trajet desquels le boîtier (62) de ce coupe-circuit (60) présente une ouverture (66) propre au passage de la tige de commande (38) de son levier d'actionnement (14), lesdits moyens de came (65) comportent une rainure (67) que présente en creux ledit porte-fusible (61) pour l'engagement de ladite tige de commande (38), cette rainure (67) présentant, successivement, deux tronçons (68, 70), qui sont décalés transversalement l'un par rapport à l'autre, à savoir, un premier tronçon (68), qui ouvre librement, par un débouché (69), à l'extrémité du porte-fusible (61), sur la tranche de celui-ci, et un deuxième tronçon (70), qui, au contraire, présente un fond (71) borgne, avec, au raccordement de ces deux tronçons (68, 70), d'une part, sur un premier des flancs de la rainure (67), un pan d'entraînement (72), qui, tourné vers le fond borgne (71) du deuxième tronçon (70), est apte à un entraînement de la tige de commande (38), et, d'autre part, sur l'autre des flancs de la rainure (67), entre le fond borgne (71) du deuxième tronçon (70) et le pan d'entraînement (72), un pan de déviation (74), qui, tourné vers le débouché (69) du premier tronçon (68), est apte à dévier ladite tige de commande (38).Auxiliary switch according to any one of claims 1 to 15, characterized in that the fuse holder (61) of the circuit breaker (60) with which it is associated comprising, for its control, cam means (65) on the path of which the housing (62) of this circuit breaker (60) has an opening (66) suitable for the passage of the control rod (38) of its actuating lever (14), said cam means (65) have a groove (67) which said fuse holder (61) has in hollow for the engagement of said control rod (38), this groove (67) having, successively, two sections (68, 70), which are offset transversely to each other, namely, a first section (68), which opens freely, by an outlet (69), at the end of the fuse holder (61), on the edge of it ci, and a second section (70), which, on the contrary, has a blind bottom (71), with, at the connection of these two sections (68, 70), on the one hand, on a premi er flanks of the groove (67), a drive plate (72), which, facing the blind bottom (71) of the second section (70), is suitable for driving the rod control (38), and, on the other hand, on the other side of the groove (67), between the blind bottom (71) of the second section (70) and the drive plate (72), a deflection panel (74), which, facing the outlet (69) of the first section (68), is capable of deflecting said control rod (38). Coupe-circuit, du genre comportant un porte-fusible (61) monté mobile entre une position d'ouverture et de fermeture, caractérisé en ce que, pour la commande d'un interrupteur auxiliaire (10) conforme à l'une quelconque des revendications 1 à 16, son porte-fusible (61) comporte des moyens de came (65) sur le trajet desquels son boîtier (62) présente une ouverture (66) propre au passage de la tige de commande (38) du levier d'actionnement (14) de cet interrupteur auxiliaire (10), lesdits moyens de came (65) comportant une rainure (67) que présente en creux le porte-fusible (61) pour l'engagement de ladite tige de commande (38), cette rainure (67) présentant, successivement, deux tronçons (68, 70), qui sont décalés transversalement l'un par rapport à l'autre, à savoir, un premier tronçon (68), qui ouvre librement, par un débouché (69), à l'extrémité du porte-fusible (61), sur la tranche de celui-ci, et un deuxième tronçon (70), qui, au contraire, présente un fond borgne (71), avec, au raccordement de ces deux tronçons (68, 70), d'une part, sur un premier des flancs de la rainure (67), un pan d'entraînement (72), qui, tourné vers le fond borgne (71) du deuxième tronçon (70), est apte à un entraînement de ladite tige de commande (38), et, d'autre part, sur l'autre des flancs de la rainure (67), entre le fond borgne (71) de son deuxième tronçon (70) et le pan d'entraînement (72), un pan de déviation (74), qui, tourné vers le débouché (69) du premier tronçon (68), est apte à dévier ladite tige de commande (38).Circuit breaker of the type comprising a fuse holder (61) mounted to move between an open and closed position, characterized in that, for controlling an auxiliary switch (10) according to any one of the claims 1 to 16, its fuse holder (61) comprises cam means (65) on the path of which its housing (62) has an opening (66) suitable for the passage of the control rod (38) of the actuating lever (14) of this auxiliary switch (10), said cam means (65) comprising a groove (67) which is hollow in the fuse holder (61) for the engagement of said control rod (38), this groove (67) having, successively, two sections (68, 70), which are offset transversely with respect to each other, namely, a first section (68), which opens freely, by an outlet (69), at the end of the fuse holder (61), on the edge thereof, and a second section (70), which, on the contrary, has a bottom b organ (71), with, at the connection of these two sections (68, 70), on the one hand, on a first of the sides of the groove (67), a drive plate (72), which, turned towards the blind bottom (71) of the second section (70), is capable of driving said control rod (38), and, on the other hand, on the other of the sides of the groove (67), between the blind bottom (71) of its second section (70) and the drive section (72), a deflection section (74), which, facing the outlet (69) of the first section (68), is capable of deflecting said rod control (38).
EP96402756A 1995-12-20 1996-12-17 Auxiliary switch for circuit breaker and corresponding circuit breaker Expired - Lifetime EP0780860B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9515136 1995-12-20
FR9515136A FR2728383B1 (en) 1994-12-20 1995-12-20 AUXILIARY SWITCH FOR CIRCUIT BREAKER AND CORRESPONDING CIRCUIT BREAKER

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EP0780860A1 true EP0780860A1 (en) 1997-06-25
EP0780860B1 EP0780860B1 (en) 2003-05-07

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EP (1) EP0780860B1 (en)
DE (1) DE69627973T2 (en)
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EP0780860B1 (en) 2003-05-07
US5969587A (en) 1999-10-19
ES2199276T3 (en) 2004-02-16
DE69627973D1 (en) 2003-06-12
DE69627973T2 (en) 2003-11-27

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