EP0307305A1 - Electric connection device for an electric terminal, circuit breaker equipped therewith and set of constituent parts therefor - Google Patents

Electric connection device for an electric terminal, circuit breaker equipped therewith and set of constituent parts therefor Download PDF

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Publication number
EP0307305A1
EP0307305A1 EP88402245A EP88402245A EP0307305A1 EP 0307305 A1 EP0307305 A1 EP 0307305A1 EP 88402245 A EP88402245 A EP 88402245A EP 88402245 A EP88402245 A EP 88402245A EP 0307305 A1 EP0307305 A1 EP 0307305A1
Authority
EP
European Patent Office
Prior art keywords
adapter
housing
clamping
opening
conductor
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
EP88402245A
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German (de)
French (fr)
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EP0307305B1 (en
Inventor
René Barbier
Serge Guenin
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.)
Telemecanique SA
Original Assignee
La Telemecanique Electrique SA
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Filing date
Publication date
Application filed by La Telemecanique Electrique SA filed Critical La Telemecanique Electrique SA
Publication of EP0307305A1 publication Critical patent/EP0307305A1/en
Application granted granted Critical
Publication of EP0307305B1 publication Critical patent/EP0307305B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0031—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different types or orientation of connections to contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/34—Conductive members located under head of screw

Definitions

  • the present invention relates to an electrical connection device for an electrical appliance terminal.
  • the present invention also relates to a circuit breaker thus equipped.
  • the present invention also relates to a set of components for the manufacture of electrical devices.
  • the manufacturers offer for a device of given rating, a range of overcurrent overload relays whose maximum setting values range between a very low current value, and the nominal value of the device.
  • the electrician will choose the cross-section of the connecting conductors according to the size of the relay used.
  • the device must therefore be provided with connection means suitable for all sections of conductors corresponding to intensities located in the range for which the device is designed.
  • connection means which ensure a good quality of tightening of the large conductors, risk damaging the conductors of small section. It is therefore necessary to adapt the size or type of the connection means as a function of the cross section of the conductor and therefore of the size of the overcurrent relay used.
  • connection device of the clamp type for a range of sections of connection conductors and of the cage type for another range.
  • the wire is pinched between a movable clamping member, called a stirrup, mounted floating under the head of a screw which passes through it, and a fixed clamping member provided with a tapped hole, in which the screw is screwable to clamp the conductor between the two clamping members on one side or the other of the screw.
  • the stationary clamping member is generally a conductive bar connected to the electrical means contained inside the device.
  • a screw is screwed into a tapped hole at the top of an annular cage, of rectangular shape, and carries at its free end situated inside the cage, a floating pinching member coming to tighten the conductor against a fixed pinching member pressed against the inside of the base of the cage.
  • the cage device is not suitable for conductors with a small cross section because these would be positioned in an uncertain manner between the fixed and movable pinching members, and also because the clamping force developed would overstress them.
  • the stirrup devices are not suitable for conductors with a large cross section because the space available on either side of the screw is insufficient to introduce them.
  • the object of the invention is thus to propose an electrical connection device which makes it possible to cover the two ranges of cross-section of conductors with identical housings.
  • the invention thus relates to an electrical connection device for an electrical appliance terminal, intended to removably connect an electrical wiring conductor of the appliance with a conductive pad of the appliance, this connection device comprising a housing formed in a housing of the apparatus and communicating with the outside of the housing by an opening for introducing the wiring conductor and by an opening for introducing a screwdriver or the like, a fixed clamping member carrying the conductive pad and a clamping member mobile biased towards each other by a clamping means operable by the screwdriver or the like.
  • the electrical connection device is characterized in that in the housing is fitted substantially without clearance an adapter having a cavity in which the gripping members are positioned and in which the movable gripping member is guided, the adapter with openings opposite the housing openings.
  • the adapter offers the connection device a cavity perfectly suited to its size.
  • connection device means for clamping the conductor against a contact pad
  • connection device the larger assembly including the connection device and its functional environment when it is mounted in the housing.
  • connection devices of high caliber are placed directly in the housings of the housing, whereas during the construction of 'an electrical device for lower current, therefore in order to use conductors of small section, there are in the housing of the connection devices according to the invention.
  • the invention also relates to a circuit breaker comprising a series of input terminals and a series of output terminals characterized in that the terminals of at least one of the series are each equipped with a device according to the first aspect of the invention.
  • the input and output terminals are equipped with the same connection devices.
  • the output terminals which, alone, will be equipped with the device according to the invention, while the input terminals are equipped with connection devices for wires of larger cross section, for example cage devices.
  • the invention also relates to a set of components for the manufacture of electrical devices, comprising all identical housings in which are defined housings communicating with the exterior of said housings by an opening for introducing a wiring conductor and by a opening for the introduction of a screwdriver or the like, and of the first clamping connection devices, for clamping conductors of relatively large gauge, these devices being nestable substantially without play in said housings, characterized in that it further comprises second clamping connection devices for clamping relatively small gauge conductors, and adapters which can be fitted substantially without play in the housings and which have a cavity adapted to receive and guide the second clamping devices connection by clamping, this cavity having openings positioned to be opposite the openings of the housings when the adapters are fitted into the housings.
  • the circuit breaker comprises a housing 1 of very generally parallelepiped shape and three input terminals 2 adjacent to one end face 6 of the housing, and three output terminals 4 adjacent to the other face d end 6 of the housing, opposite the first.
  • the housing 1 comprises a body 7 and a removable cover 8 which together define, for each terminal 2 or 4, a housing 9 separated from the other housings by thick partitions 11 of the body 7 and by thinner partitions 12 of the cover 8.
  • the free ends 13 of the partitions 12 engage in grooves 14 of the partitions 11 to lengthen the arc path.
  • Each housing 9 is closed towards the rear, that is to say on the side opposite to the face 6, by a partition 16 carried by the cover 8 in the direction of the body 7. As shown in FIGS. 1 and 3, each partition 16 has a region extending substantially without play between the two partitions 11 of the associated housing.
  • the housing 1 defines for each housing 9 an opening 17 through which the latter communicates with the outside.
  • the body 7 d housing 1 has for each housing 9 a rectangular notch 18 in its edge 19 of joint with the cover 8.
  • the cover 8 has for each notch 18 of the body 7 a tongue 21 of the same width as the notch 18 and partially closing it, each opening 17 thus being defined jointly by a notch 18 and an associated tongue 21.
  • each housing 9 is defined by an upper wall 22 of the cover 8.
  • the wall 22 has for each housing 9 a circular opening 23 through which the housing 9 communicates with the outside to allow the introduction of a screwdriver or the like 24 ( Figure 1).
  • each housing 9 is closed below by a wall 26 of the body 7.
  • the device has for each terminal 2 or 4 an electrical contact pad 27 carried by a conductive bar 28 connected to the means contained by the device.
  • the conducting strip 28, at its end opposite to the contact pad 27, is bent twice at 90 ° to carry at its end a contact pad 29 facing a movable contact bridge 30 between a circuit open position, represented in FIG. 1, and a closed position in which the contact bridge 30, supported on contact 29 and on a similar contact associated with an output terminal 4, realizes in short-circuit between these terminals.
  • a contact bridge such as 30 is provided for each pair of terminals 2, 4.
  • Each bar 28 is fixed by means of two screws 128 on a wing 31 of the wall 26. At its end directed towards the interior of the apparatus, the wing 31 is notched at 32 to allow mounting the engagement of the doubly curved end of the bar 28.
  • each contact pad 27 must be made between each contact pad 27 and a wiring conductor 33, one stripped end 34 of which is introduced through the opening 17 and applied to the pad 27 .
  • each housing 9 is provided with this effect of a cage connection device comprising an annular cage 36, of substantially parallelepiped external shape (see FIG. 3), a bottom wall 37 rests on the free end of two ribs 38 of the wall 26. The wall of bottom 37 is therefore interposed between the ribs 38 and the bar 28.
  • the cage 36 further comprises two side walls 40 each pressing against one of the partitions 11 of the body 7 of the housing.
  • the cage 36 is closed by a head wall 39 located substantially in the joint plane body 7 - cover 8 of the housing 1. Opposite the opening 23 for introducing a screwdriver, the head wall 39 is crossed by a tapped hole in which is engaged a clamping screw 41 whose head 142 is directed towards the opening 23.
  • a pinching member 143 is attached to the end of the screw 41 situated inside the cage 36, by a crimp allowing a relative rotation between the screw 41 and the movable clamping member 143.
  • the clamping member 143 which faces the area 27 of the bar 28 constituting the stationary clamping member, has a generally square shape while being slightly curved in the plane (of Figure 3) perpendicular to the direction of introduction of the conductor 33. The side of this square has a value such that the side walls 40 of the cage prevent rotation of the movable pinching member 143 around the axis of the screw 41.
  • the same housing 1, comprising a body 7 and a cover 8 is used to make a circuit breaker for currents of maximum current equal for example to 25 amperes, the conductors being of small section.
  • the contact bars 28 are also the same as those in FIGS. 1 to 3.
  • the connection device is of the caliper type and more particularly comprises a screw 42 which is screwed into a tapped hole 43 in the plate 28 and whose the head 44 is directed towards the opening 23 so as to be accessible through the latter by means of a screwdriver 45.
  • the screw 42 Between its head 44 and its threaded region 46, the screw 42 has a throttle 47 around which is held captive a movable pinching member 48 of generally square shape curved in the plane perpendicular to the direction of introduction of the stripped end 49 d '' a small wiring conductor 51.
  • each side of the square movable pinching member 48 is much less than the distance between the successive partitions 11 of the housing body 7.
  • an adapter 52 (shown alone in FIGS. 6 and 7) made of molded plastic material, in the general shape of a hollowed parallelepiped having the same external dimensions as the cage 36.
  • the adapter 52 comprises, on either side of a cavity 80, two lateral wings 53 substantially parallel to the direction of introduction of the conductor 51 through the opening 17.
  • the wings lateral 53 extend on either side of the movable clamping member 48 and the fixed clamping member 28, each against the adjacent wall 11.
  • the free distance d between the lateral wings 53 is slightly greater than the corresponding dimension of the movable pinching member 48 so that the latter can slide between the wings 53 but is prevented from rotating between them around the axis of the screw. 42.
  • each lateral wing 53 closes one of the sides of an area nip included between the fixed nip 28 and movable nip 48.
  • the two lateral wings 53 are connected to each other by a bracing comprising, on either side of the cavity 80, a adapter base 56 (see FIGS. 4, 6 and 7 and left part of FIG. 5) and an adapter head 57.
  • the adapter base 56 extends opposite the external face of the clamping member stationary 28, opposite the nip, and the adapter head 57 extends opposite the outer face of the movable nip 48, which face is also opposite to the pinching zone.
  • the adapter head 57 is traversed by a well 59 extending along the axis of the screw 42, between the latter and the orifice 23, to allow the screwdriver 45 to reach the screw head 44 through the orifice 23 and well 59.
  • the well 59 furthermore guides the screw head 44 when the fixed 28 and mobile 48 gripping members are in the vicinity of their maximum mutual distance.
  • the adapter head 57 has, on the side adjacent to the cavity 80, an abutment face 61 which, seen in the direction of introduction of the conductor 51 (FIG. 5), has a vaulted profile substantially matching the profile of the movable nipping 48 when the latter is in its position of maximum spacing relative to the movable nipping member 48 when the latter is in its position of maximum spacing relative to the stationary nipping member 28, while the head screw 44 is engaged in the well 59 (see left part of Figure 5).
  • the face 61 limits the mutual spacing of the two gripping members 28, 48.
  • the screw is given its shortest possible length allowing to achieve both a maximum spacing given between the clamping members 28, 48 and the retaining function of the screw 42 in the position maximum spacing.
  • the projecting part of the screw 42 is also engaged in an opening 64 made through the bottom 56 of the adapter.
  • the bottom 56 rests on the ribs 38.
  • the opening 64 has a diameter greater than that of the rod of the screw 42.
  • the adapter 52 is positioned between the ribs 38, on which its bottom 56 rests, and shoulders 66 carried by internal ribs 67 of the cover 8, adjoining respectively the partition 16 associated with the housing 9 considered, and a wall 68 of the cover, which contributes to defining the end face 6 of the housing 1.
  • the shoulders 66 are turned towards the body 7 and situated substantially in the joint plane body 7 - cover 8.
  • the position of the adapter 52 in the direction of introduction of the conductor 51 is defined between the partition 16 of the housing 9 considered and the rib 67, which extends beyond the shoulder 66 behind the tongue 21.
  • the adapter 52 mounted in this housing.
  • the adapter 52 perfectly occupies the volume left free by the cage 36.
  • the bar 28 is fixed by means of two screws 128 on the wing 31 of the wall 26 belonging to the body 7 of the housing 1.
  • the bar 28 and the adapter 52 position the screw 42 and the movable pinching member 48.
  • the adapter also has a projection 69 comprising a front panel 71 (FIGS. 4, 6, 7) of rectangular shape, two opposite edges of which are connected to the wings 53 by two bearing wings 72 situated substantially in the extension of the wings 53.
  • the panel 71 partially closes the opening 17, and, more particularly, closes approximately half of the opening 17 which is adjacent to the tongue 21 of the cover, and which therefore is furthest from the contact pad 27, so that, during wiring, the introduction of the conductor 51 is systematically carried out near said area, through an opening 81 which the adapter has between the panel 71 and the bottom 56 (FIGS. 6 and 7).
  • the screw 42 being screwed substantially fully to bring the two together as close as possible clamping members 28 and 48. It is only in this position of minimum or almost-minimal spacing of the clamping members that the yoke connection device is removable relative to the adapter 52.
  • the rear opening of the adapter 51 is defined between a free rear edge 74 of the abutment surface 61, a free rear edge of each lateral wing 53, and a free rear edge 76 of the bottom 56.
  • the adapter which has just been described provides the following technical effects: - obturation of part of the opening 17, part - made unnecessary by the removal of the cage, the remaining part allowing a correct introduction of the conductor under the stirrup; - stirrup guide during tightening; - retaining the adapter 52 by its bottom 56 engaged under the bar 28 and retaining the screw assembly 42 - stirrup 48 by stirrup of the stirrup 48 under the head 57 of the adapter 52 when the tip of the screw is still engaged in its tapped hole; - Consequently, captivity of the various components of the connection device (unless the operations described in reference to Figures 8 and 9 are carried out in reverse order); and - ease of assembly.
  • three bus bars 82 supply several circuit breakers 83a, 83b, ...
  • the input of the circuit breaker 83b instead of being connected directly to the bars 82, is connected by bridges 86a to l input of circuit breaker 83a.
  • Other bridges 86b connect the input of the circuit breaker 83b to the input of a next circuit breaker, not shown.
  • Each circuit breaker 83a, 83b set to open the circuit when a relatively low maximum current is reached, delivers at its output only a current having at most the maximum current in question. This allows connect conductors 87 of small cross-section to the output of each circuit breaker 83a, 83b.
  • a connection device according to the invention is placed at the output terminals 4, comprising an adapter 52 positioning and guiding a yoke connection device.
  • each input terminal 2 must accommodate two conductors 84, 86a or respectively 86a, 86b.
  • each of these two conductors carries the current intended for all the circuit breakers located downstream plus, for one of the two conductors, the current intended for the circuit breaker to which the terminal in question belongs.
  • These conductors must therefore be of relatively large size. The connection of two such conductors to the same terminal leads to choosing a larger connection device, for example of the cage type 36, without adapter.
  • the housings 1 of these circuit breakers 83a, 83b are identical to that of FIGS. 1 to 5, the terminals 2 being fitted with cage connection devices 36 and the terminals 4 being fitted with stirrup connection devices 48 housed in adapters 52.
  • the adapter could be made for the adapter to have, instead of the bottom 56, simply two lower edges of the wings 53, which would allow the adapter-connection device assembly by simply spacing the wings 53.
  • bracing means only comprise the bottom such as 56, the head being replaced by conformations of each lateral wing suitable for, for example, guiding the screw and / or limiting the spacing of the '' bracket relative to the bar.
  • connection devices can be of the elastic clamping type in which a movable clamping member is applied by a spring to clamp the conductor against a fixed clamping member.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Breakers (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)

Abstract

Chaque borne comprend une barrette conductrice fixe (28) et un étrier mobile (48), entre lesquels peut être serré un conducteur (51). Ce connecteur est monté dans un logement du boîtier. Le logement est capable de recevoir un connecteur à cage, plus encombrant. Pour guider les constituants mobiles (42, 48) du connecteur à étrier, et le conducteur (51) lors de son introduction, il est prévu un adaptateur (52) emboîté dans le logement du boîtier, et entourant le connecteur de manière à fermer latéralement la zone de pincement compise entre barrette (28) et étrier (48) et à empêcher la rotation de l'étrier (48). Une surface (61) limite l'écartement mutuel de l'étier (48) et de la barrette (28) tandis qu'un puits (59) guide la tête de vis. Un cache (71) de l'adaptateur limite au strict nécessaire la dimension de l'ouverture (17) d'introduction du conducteur. Utilisation pour couvrir deux plages d'intensité avec un même boîtier (même corps et même couvercle).Each terminal includes a fixed conductor bar (28) and a movable bracket (48), between which a conductor (51) can be clamped. This connector is mounted in a housing of the housing. The housing is capable of receiving a more bulky cage connector. To guide the movable components (42, 48) of the stirrup connector, and the conductor (51) during its introduction, an adapter (52) is provided, fitted into the housing of the housing, and surrounding the connector so as to close laterally the nip between the strip (28) and the stirrup (48) and to prevent the rotation of the stirrup (48). A surface (61) limits the mutual spacing of the stirrup (48) and the bar (28) while a well (59) guides the screw head. A cover (71) of the adapter limits the size of the opening (17) for introducing the conductor to what is strictly necessary. Use to cover two intensity ranges with the same housing (same body and same cover).

Description

La présente invention concerne un dispositif de raccordement électrique pour borne d'appareil électrique.The present invention relates to an electrical connection device for an electrical appliance terminal.

La présente invention concerne aussi un disjoncteur ainsi équipé.The present invention also relates to a circuit breaker thus equipped.

La présente invention concerne également un ensemble de constituants pour la fabrication d'appareils électriques.The present invention also relates to a set of components for the manufacture of electrical devices.

Certains appareils électiques, en particulier ceux qui sont équipés de relais de surcharge comme les disjoncteurs, sont traversés par des courants dont la valeur est au plus égale à celle du courant de réglage maximal du relais.Certain electrical devices, in particular those equipped with overload relays such as circuit breakers, are crossed by currents whose value is at most equal to that of the maximum setting current of the relay.

Afin d'ajuster au plus près la valeur maximale de réglage du relais au courant présumé absorbé par le récepteur, les constructeurs offrent pour un appareil de calibre donné, une gamme de relais de surintensité de surcharge dont les valeurs maximales de réglage s'échelonnent entre une valeur très basse du courant, et la valeur nominale de l'appareil. Pour des raisons économiques évidentes, l'installateur électricien choisira la section des conducteurs de raccordement en fonction du calibre du relais utilisé. L'appareil doit par conséquent être muni de moyens de connexion convenant pour toutes les sections de conducteurs correspondant à des intensités situées dans la plage pour laquelle l'appareil est conçu.In order to adjust as closely as possible the maximum setting value of the relay to the presumed current absorbed by the receiver, the manufacturers offer for a device of given rating, a range of overcurrent overload relays whose maximum setting values range between a very low current value, and the nominal value of the device. For obvious economic reasons, the electrician will choose the cross-section of the connecting conductors according to the size of the relay used. The device must therefore be provided with connection means suitable for all sections of conductors corresponding to intensities located in the range for which the device is designed.

En pratique, les moyens de connexion qui assurent une bonne qualité de serrage des gros conducteurs, risquent d'endommager les conducteurs de petite section. Il est donc nécessaire d'adapter la taille ou le type du moyen de connexion en fonction de la section du conducteur et par conséquent du calibre du relais de surintensité utilisé.In practice, the connection means which ensure a good quality of tightening of the large conductors, risk damaging the conductors of small section. It is therefore necessary to adapt the size or type of the connection means as a function of the cross section of the conductor and therefore of the size of the overcurrent relay used.

On peut par exemple utiliser un dispositif de connexion du type à étrier pour une gamme de sections de conducteurs de raccordement et du type à cage pour une autre gamme.One can for example use a connection device of the clamp type for a range of sections of connection conductors and of the cage type for another range.

Dans le dispositif de connexion à étrier, le fil est pincé entre un organe de pincement mobile, appelé étrier, monté flottant sous la tête d'une vis qui le traverse, et un organe de pincement fixe muni d'un trou taraudé, dans lequel la vis est vissable pour serrer entre les deux organes de pincement le conducteur d'un côté ou de l'autre de la vis. L'organe de pincement immobile est en général une barrette conductrice raccordée aux moyens électriques contenus à l'intérieur de l'appareil.In the stirrup connection device, the wire is pinched between a movable clamping member, called a stirrup, mounted floating under the head of a screw which passes through it, and a fixed clamping member provided with a tapped hole, in which the screw is screwable to clamp the conductor between the two clamping members on one side or the other of the screw. The stationary clamping member is generally a conductive bar connected to the electrical means contained inside the device.

Dans le dispositif de connexion à cage, une vis est vissable dans un trou taraudé du sommet d'une cage annulaire, de forme rectangulaire, et porte à son extrémité libre située à l'intérieur de la cage, un organe de pincement flottant venant serrer le conducteur contre un organe de pincement fixe appuyé contre la face intérieure de la base de la cage.In the cage connection device, a screw is screwed into a tapped hole at the top of an annular cage, of rectangular shape, and carries at its free end situated inside the cage, a floating pinching member coming to tighten the conductor against a fixed pinching member pressed against the inside of the base of the cage.

Le dispositif à cage n'est pas approprié pour les conducteurs de faible section car ceux-ci seraient positionnés de manière incertaine entre les organes de pincement fixe et mobile, et aussi car la force de serrage développée les solliciterait excessivement. Par contre, les dispositifs à étrier ne sont pas appropriés pour les conducteurs de forte section car la place disponible de part et d'autre de la vis est insuffisante pour les introduire.The cage device is not suitable for conductors with a small cross section because these would be positioned in an uncertain manner between the fixed and movable pinching members, and also because the clamping force developed would overstress them. On the other hand, the stirrup devices are not suitable for conductors with a large cross section because the space available on either side of the screw is insufficient to introduce them.

Ainsi, bien qu'il soit envisageable que deux boîtiers identiques renferment des moyens électriques tels qu'un relais de surintensité, adaptés à des intensités très différentes, par exemple 1 A et 80 A, on y a cependant renoncé jusqu'à présent car il est apparu nécessaire de prévoir des boîtiers différents en fonction du raccordement prévu de manière à les rendre apte à loger des dispositifs de connexion à cage ou respectivement à étrier. Les dispositifs à cage sont plus encombrants que les dispositifs à étrier. Si l'on voulait monter un dispositif à étrier dans un logement prévu dans le boîtier pour pouvoir recevoir un dispositif à cage, l'organe de pincement mobile ne serait pas empêché de tourner par les parois du logement et le fil à pincer risquerait d'être introduit à distance latérale trop grande de la vis, hors de portée de l'étrier, ce qui aboutirait à une connexion défectueuse.Thus, although it is conceivable that two identical boxes contain electrical means such as an overcurrent relay, adapted to very different intensities, for example 1 A and 80 A, it has however been abandoned so far because it appeared necessary to provide different boxes depending on the connection provided so as to make them suitable for housing connection devices or cage or bracket respectively. Cage devices are more bulky than stirrup devices. If one wanted to mount a stirrup device in a housing provided in the housing to be able to receive a cage device, the mobile pinching would not be prevented from rotating through the walls of the housing and the wire to be pinched would risk being introduced at too great a lateral distance from the screw, out of reach of the bracket, which would lead to a faulty connection.

Or la nécessité de prévoir deux boîtiers différents pour les deux gammes de sections de conducteurs entraîne une augmentation significative du prix de revient des appareils.However, the need to provide two different housings for the two ranges of conductor sections leads to a significant increase in the cost price of the devices.

Le but de l'invention est ainsi de proposer un dispositif de raccordement électrique qui permette de couvrir les deux gammes de sections de conducteurs avec des boîtiers identiques.The object of the invention is thus to propose an electrical connection device which makes it possible to cover the two ranges of cross-section of conductors with identical housings.

L'invention vise ainsi un dispositif de raccordement électrique pour borne d'appareil électrique, destiné à raccorder amoviblement un conducteur de câblage électrique de l'appareil avec une plage conductrice de l'appareil, ce dispositif de raccordement comprenant un logement formé dans un boîtier de l'appareil et communiquant avec l'extérieur du boîtier par une ouverture d'introduction du conducteur de câblage et par une ouverture d'introduction d'un tournevis ou analogue, un organe de pincement fixe portant la plage conductrice et un organe de pincement mobile sollicités l'un vers l'autre par un moyen de serrage actionnable par le tournevis ou analogue.The invention thus relates to an electrical connection device for an electrical appliance terminal, intended to removably connect an electrical wiring conductor of the appliance with a conductive pad of the appliance, this connection device comprising a housing formed in a housing of the apparatus and communicating with the outside of the housing by an opening for introducing the wiring conductor and by an opening for introducing a screwdriver or the like, a fixed clamping member carrying the conductive pad and a clamping member mobile biased towards each other by a clamping means operable by the screwdriver or the like.

Suivant l'invention, le dispositif de raccordement électrique est caractérisé en ce que dans le logement est emboîté sensiblement sand jeu un adaptateur présentant une cavité dans laquelle se positionnent les organes de pincement et dans laquelle est guidé l'organe de pincement mobile, l'adaptateur présentant des ouvertures en regard des ouvertures du logement.According to the invention, the electrical connection device is characterized in that in the housing is fitted substantially without clearance an adapter having a cavity in which the gripping members are positioned and in which the movable gripping member is guided, the adapter with openings opposite the housing openings.

Ainsi, quelle que soit la dimension du logement prévu dans le boîtier, l'adaptateur offre au dispositif de connexion une cavité parfaitement adaptée à ses dimension.Thus, whatever the size of the housing provided in the housing, the adapter offers the connection device a cavity perfectly suited to its size.

Dans ce qui précède, et dans la suite, on a appelé "dispositif de connexion" les moyens de serrage du conducteur contre une plage de contact et "dispositif de raccordement" l'ensemble plus vaste incluant le dispositif de connexion et son environnement fonctionnel lorsqu'il est monté dans le boîtier.In the above, and in the following, we have called "connection device" means for clamping the conductor against a contact pad and "connection device" the larger assembly including the connection device and its functional environment when it is mounted in the housing.

Lors de la construction d'un appareil électrique destiné à un fort courant, donc en vue d'utiliser des conducteurs de forte section, on place directement dans les logements du boîtier des dispositifs de connexion de fort calibre, tandis que lors de la construction d'un appareil électrique pour courant plus faible, donc en vue d'utiliser des conducteurs de faible section, on constitue dans les logements du boîtier des dispositifs de raccordement selon l'invention.During the construction of an electrical device intended for a strong current, therefore with a view to using conductors of large cross-section, connection devices of high caliber are placed directly in the housings of the housing, whereas during the construction of 'an electrical device for lower current, therefore in order to use conductors of small section, there are in the housing of the connection devices according to the invention.

L'invention vise également un disjoncteur comprenant une série de bornes d'entrée et une série de bornes de sortie caractérisé en ce que les bornes de l'une au moins des séries sont équipées chacune d'un dispositif selon le premier aspect de l'invention.The invention also relates to a circuit breaker comprising a series of input terminals and a series of output terminals characterized in that the terminals of at least one of the series are each equipped with a device according to the first aspect of the invention.

Dans la plupart des cas, les bornes d'entrée et de sortie sont équipées des mêmes dispositifs de raccordement. Cependant, dans certaines applications particulières, ce seront par exemple les bornes de sortie qui, seules, seront équipées du dispositif selon l'invention, tandis que les bornes d'entrée sont équipées de dispositifs de raccordement pour fils de plus forte section,par exemple dispositifs à cage.In most cases, the input and output terminals are equipped with the same connection devices. However, in certain particular applications, it will be for example the output terminals which, alone, will be equipped with the device according to the invention, while the input terminals are equipped with connection devices for wires of larger cross section, for example cage devices.

L'invention concerne également um ensemble de constituants pour la fabrication d'appareils électriques, comprenant des boîtiers tous identiques dans lesquels sont définis des logements communiquant avec l'extérieur desdits boîtiers par une ouverture d'introduction d'un conducteur de câblage et par une ouvertue d'introduction d'un tournevis ou analogue, et des premiers dispositifs de connexion par serrage, pour le serrage de conducteurs de calibre relativement fort, ces dispositifs étant emboîtables sensiblement sans jeu dans lesdits logements, caractérisé en ce qu'il comprend en outre des seconds dispositifs de connexion par serrage pour le serrage de conducteurs de calibre relativement faible, et des adaptateurs emboîtables sensiblement sans jeu dans les logements et présentant une cavité adaptée à recevoir et à guider les seconds dispositifs de connexion par serrage, cette cavité présentant des ouvertures positionnées pour être en regard des ouvertures des logements lorsque les adaptateurs sont emboîtés dans les logements.The invention also relates to a set of components for the manufacture of electrical devices, comprising all identical housings in which are defined housings communicating with the exterior of said housings by an opening for introducing a wiring conductor and by a opening for the introduction of a screwdriver or the like, and of the first clamping connection devices, for clamping conductors of relatively large gauge, these devices being nestable substantially without play in said housings, characterized in that it further comprises second clamping connection devices for clamping relatively small gauge conductors, and adapters which can be fitted substantially without play in the housings and which have a cavity adapted to receive and guide the second clamping devices connection by clamping, this cavity having openings positioned to be opposite the openings of the housings when the adapters are fitted into the housings.

D'autres particularités et avantages de l'invention ressortiront encore de la description ci-après.Other features and advantages of the invention will emerge from the description below.

Aux dessins annexés, donnés à titre d'exemples non limitatifs :

  • - la figure 1 est une vue en élévation latérale d'un disjoncteur dont les bornes sont équipées de dispositifs de raccordement à cage, dont l'un est représenté en coupe ;
  • - la figure 2 est une vue de dessus du disjoncteur de la figure 1 ;
  • - la figure 3 est une vue en bout du disjoncteur des figures 1 et 2, avec coupe de l'un des dispositifs de raccordement à cage ;
  • - la figure 4 est une vue partielle, à échelle agrandie, d'un disjoncteur selon l'invention, ayant le même boîtier que le disjoncteur des figures 1 à 3, et équipé de dispositifs de raccordement à étrier selon l'invention, dont l'un est représenté en coupe ;
  • - la figue 5 est une vue en bout du disjoncteur de la figure 4, avec coupe transversale de deux dispositifs de raccordement selon l'invention, dans deux positions différentes ;
  • - la figure 6 est une vue en perspective de l'adaptateur ;
  • - la figure 7 est une vue analogue à la figure 6 mais avec pointillés visualisant les arêtes cachées ;
  • - les figures 8 et 9 sont deux vues en coupe de l'adaptateur, des organes de pincement et de la vis lors de leur assemblage ; et
  • - la figure 10 est une vue des mêmes éléments, visualisant leur condition d'indémontabilité.
  • - la figure 11 est une vue schématique d'une installation comportant des disjoncteurs dont les bornes d'entrée sont adaptées à recevoir des fils relativement gros et les bornes de sortie des fils relativement petits.
In the appended drawings, given by way of nonlimiting examples:
  • - Figure 1 is a side elevational view of a circuit breaker whose terminals are equipped with cage connection devices, one of which is shown in section;
  • - Figure 2 is a top view of the circuit breaker of Figure 1;
  • - Figure 3 is an end view of the circuit breaker of Figures 1 and 2, with section of one of the cage connection devices;
  • - Figure 4 is a partial view, on an enlarged scale, of a circuit breaker according to the invention, having the same housing as the circuit breaker of Figures 1 to 3, and equipped with yoke connection devices according to the invention, of which l one is shown in section;
  • - Fig 5 is an end view of the circuit breaker of Figure 4, with cross section of two connection devices according to the invention, in two different positions;
  • - Figure 6 is a perspective view of the adapter;
  • - Figure 7 is a view similar to Figure 6 but with dotted lines showing the hidden edges;
  • - Figures 8 and 9 are two sectional views of the adapter, the clamping members and the screw when their assembly; and
  • - Figure 10 is a view of the same elements, showing their condition of non-dismantling.
  • - Figure 11 is a schematic view of an installation comprising circuit breakers whose input terminals are adapted to receive relatively large wires and the output terminals of relatively small wires.

Dans l'exemple représenté aus figures, le disjoncteur comprend un boîtier 1 de forme très généralement parallélépipédique et trois bornes d'entrée 2 adjacentes à une face d'extrémité 6 du boîtier, et trois bornes de sortie 4 adjacentes à l'autre face d'extrémité 6 du boîtier, opposée à la première.In the example shown in the figures, the circuit breaker comprises a housing 1 of very generally parallelepiped shape and three input terminals 2 adjacent to one end face 6 of the housing, and three output terminals 4 adjacent to the other face d end 6 of the housing, opposite the first.

Comme le montrent les figures 1 et 3, le boîtier 1 comprend un corps 7 et un couvercle amovible 8 qui définissent ensemble, pour chaque borne 2 ou 4, un logement 9 séparé des autres logements par des cloisons épaisses 11 du corps 7 et par des coisons plus minces 12 du couvercle 8. Les extrémités libres 13 des cloisons 12 viennent s'engager dans des rainures 14 des cloisons 11 pour allonger le chemin d'arc.As shown in Figures 1 and 3, the housing 1 comprises a body 7 and a removable cover 8 which together define, for each terminal 2 or 4, a housing 9 separated from the other housings by thick partitions 11 of the body 7 and by thinner partitions 12 of the cover 8. The free ends 13 of the partitions 12 engage in grooves 14 of the partitions 11 to lengthen the arc path.

Chaque logement 9 est fermé vers l'arrière, c'est-­à-dire du côté opposé à la face 6, par une cloison 16 portée par le couvercle 8 en direction du corps 7. Comme le montrent les figures 1 et 3, chaque cloison 16 a une région s'étendant sensiblement sans jeu entre les deux cloisons 11 du logement associé.Each housing 9 is closed towards the rear, that is to say on the side opposite to the face 6, by a partition 16 carried by the cover 8 in the direction of the body 7. As shown in FIGS. 1 and 3, each partition 16 has a region extending substantially without play between the two partitions 11 of the associated housing.

Le boîtier 1 définit pour chaque logement 9 une ouverture 17 par laquelle celui-ci communique avec l'extérieur. Pour cela, le corps 7 d boîtier 1 présente pour chaque logement 9 une échancrure rectangulaire 18 dans son bord 19 de joint avec le couvercle 8. Le couvercle 8 présente pour chaque échancrure 18 du corps 7 une languette 21 de même largeur que l'échancrure 18 et fermant partiellement celle-ci, chaque ouverture 17 étant ainsi définie conjointement par une échancrure 18 et une languette 21 associée.The housing 1 defines for each housing 9 an opening 17 through which the latter communicates with the outside. For this, the body 7 d housing 1 has for each housing 9 a rectangular notch 18 in its edge 19 of joint with the cover 8. The cover 8 has for each notch 18 of the body 7 a tongue 21 of the same width as the notch 18 and partially closing it, each opening 17 thus being defined jointly by a notch 18 and an associated tongue 21.

Le sommet de chaque logement 9 est défini par une paroi supérieure 22 du couvercle 8. La paroi 22 présente pour chaque logement 9 une ouverture circulaire 23 par laquelle le logement 9 communique avec l'extérieur pour permettre l'introduction d'un tournevis ou analogue 24 (figure 1).The top of each housing 9 is defined by an upper wall 22 of the cover 8. The wall 22 has for each housing 9 a circular opening 23 through which the housing 9 communicates with the outside to allow the introduction of a screwdriver or the like 24 (Figure 1).

Enfin, chaque logement 9 est fermé inférieurement par une paroi 26 du corps 7.Finally, each housing 9 is closed below by a wall 26 of the body 7.

L'appareil possède pour chaque borne 2 our 4 une plage de contact électrique 27 portée par une barrette conductrice 28 raccordée aux moyens contenus par l'appareil. Dans l'exemple représenté, la barrette conductrice 28, à son extrémité opposée à la plage de contact 27, est recourbée deux fois à 90° pour porter à son extrémité une pastille de contact 29 faisant face à un pont de contact 30 mobile entre une position d'ouverture de circuit, représentée à la figure 1, et une position de fermeture dans laquelle le pont de contact 30, appuyé sur le contact 29 et sur un contact similaire associé à une borne de sortie 4, réalise en court-circuit entre ces bornes. Il est prévu un pont de contact tel que 30 pour chaque couple de bornes 2, 4.The device has for each terminal 2 or 4 an electrical contact pad 27 carried by a conductive bar 28 connected to the means contained by the device. In the example shown, the conducting strip 28, at its end opposite to the contact pad 27, is bent twice at 90 ° to carry at its end a contact pad 29 facing a movable contact bridge 30 between a circuit open position, represented in FIG. 1, and a closed position in which the contact bridge 30, supported on contact 29 and on a similar contact associated with an output terminal 4, realizes in short-circuit between these terminals. A contact bridge such as 30 is provided for each pair of terminals 2, 4.

Chaque barrette 28 est fixée au moyen de deux vis 128 sur une aile 31 de la paroi 26. A son extrémité dirigée vers l'intérieur de l'appareil, l'aile 31 est échancrée en 32 pour permettre au montage l'engagement de l'extrémité doublement recourbée de la barrette 28.Each bar 28 is fixed by means of two screws 128 on a wing 31 of the wall 26. At its end directed towards the interior of the apparatus, the wing 31 is notched at 32 to allow mounting the engagement of the doubly curved end of the bar 28.

Pour raccorder l'appareil avec un réseau ou une installation extérieure, il faut réaliser le contact électrique entre chaque plage de contact 27 et un conducteur de câblage 33 dont une extrémité dénudée 34 est introduit à travers l'ouverture 17 et appliquée sur la plage 27.To connect the device with a network or an external installation, electrical contact must be made between each contact pad 27 and a wiring conductor 33, one stripped end 34 of which is introduced through the opening 17 and applied to the pad 27 .

Dans l'exemple considéré aux figures 1 à 3 d'un disjoncteur pour des courants compris par exemple entre 25 et 80 Ampères environ, les conducteurs de câblage 33 étant donc de forte section,chaque logement 9 est muni à cet effet d'un dispositif de connexion à cage comprenant une cage annulaire 36, de forme extérieure sensiblement parallélépipédique (voir figure 3,) dont une paroi de fond 37 repose sur l'extrémité libre de deux nervures 38 de la paroi 26. La paroi de fond 37 est donc interposée entre les nervures 38 et la barrette 28.In the example considered in FIGS. 1 to 3 of a circuit breaker for currents of, for example, between 25 and 80 amps approximately, the wiring conductors 33 therefore being of large section, each housing 9 is provided with this effect of a cage connection device comprising an annular cage 36, of substantially parallelepiped external shape (see FIG. 3), a bottom wall 37 rests on the free end of two ribs 38 of the wall 26. The wall of bottom 37 is therefore interposed between the ribs 38 and the bar 28.

La cage 36 comprend en outre deux parois latérales 40 s'appuyant chacune contre l'une des cloisons 11 du corps 7 du boîtier.The cage 36 further comprises two side walls 40 each pressing against one of the partitions 11 of the body 7 of the housing.

La cage 36 est fermée par une paroi de tête 39 se trouvant sensiblement dans le plan de joint corps 7 - ­couvercle 8 du boîtier 1. En regard de l'ouverture 23 d'introduction d'un tournevis, la paroi de tête 39 est traversée par un trou taraudé dans lequel est engagée une vis de serrage 41 dont la tête 142 est dirigée vers l'ouverture 23. Un organe de pincement 143 est attaché à l'extrémité de la vis 41 située à l'intérieur de la cage 36, par un sertissage permettant une rotation relative entre la vis 41 et l'organe de pincement mobile 143. L'organe de pincement 143 qui fait face à la plage 27 de la barrette 28 constituant organe de pincement stationnaire, a une forme générale carrée tout en étant légèrement incurvée dans le plan (de la figure 3) perpendiculaire à la direction d'introduction du conducteur 33. Le côté de ce carré a une valeur telle que les parois latérales 40 de la cage empêchent la rotation de l'organe de pincement mobile 143 autour de l'axe de la vis 41.The cage 36 is closed by a head wall 39 located substantially in the joint plane body 7 - cover 8 of the housing 1. Opposite the opening 23 for introducing a screwdriver, the head wall 39 is crossed by a tapped hole in which is engaged a clamping screw 41 whose head 142 is directed towards the opening 23. A pinching member 143 is attached to the end of the screw 41 situated inside the cage 36, by a crimp allowing a relative rotation between the screw 41 and the movable clamping member 143. The clamping member 143 which faces the area 27 of the bar 28 constituting the stationary clamping member, has a generally square shape while being slightly curved in the plane (of Figure 3) perpendicular to the direction of introduction of the conductor 33. The side of this square has a value such that the side walls 40 of the cage prevent rotation of the movable pinching member 143 around the axis of the screw 41.

Ainsi, au montage, le couvercle 8 étant séparé du corps 7 du boîtier 1, on engage une barrette 28 entre le fond 37 d'une cage 36 et l'organe de pincement 143 porté par la vis 41 associée à cette cage, et on met la barrette 28 en place dans le corps 7 en même temps qu'on met la cage 36 et la vis 41 en place dans le logement 9 associé. On répète cette opération à chacune des bornes 2 et 4.Thus, during assembly, the cover 8 being separated from the body 7 of the housing 1, a bar 28 is engaged between the bottom 37 of a cage 36 and the clamping member 143 carried by the screw 41 associated with this cage, and puts the bar 28 in place in the body 7 at the same time as the cage 36 and the screw 41 are put in place in the associated housing 9. This operation is repeated at each of terminals 2 and 4.

Les autres étapes de construction de l'appareil étant supposées réalisées, on ferme le couvercle 8.The other stages of construction of the apparatus being assumed to be carried out, the cover 8 is closed.

Lors de l'insertion du disjoncteur dans une installation, la vis 41 de chaque connecteur à cage étant desserrée, on engage l'extrémité dénudée 34 d'un conducteur 33 dans chaque ouverture 17 entre la barrette 28 et l'organe de pincement mobile 143 jusqu'à buter contre la cloison 16, puis, à l'aide d'un tournevis 24, qu'on engage à travers l'ouverture 23, on serre la vis 41.When inserting the circuit breaker into a installation, the screw 41 of each cage connector being loose, the stripped end 34 of a conductor 33 is engaged in each opening 17 between the bar 28 and the movable pinching member 143 until it abuts against the partition 16, then, using a screwdriver 24, which is engaged through the opening 23, the screw 41 is tightened.

Dans l'exemple représenté aux figures 4 et 5, le même boîtier 1, comprenant un corps 7 et un couvercle 8 est utilisé pour réaliser un disjoncteur pour courants d'intensité maximale égale par exemple à 25 Ampères, les conducteurs étant de faible section. Les barrettes de contact 28 sont également les mêmes que celles des figures 1 à 3. Le dispositif de connexion est du type à étrier et comprend plus particulièrement une vis 42 qui est engagée de manière vissante dans un trou taraudé 43 de la plaquette 28 et dont la tête 44 est dirigée vers l'ouverture 23 de manière à être accessible à travers cette dernière au moyen d'un tournevis 45.In the example shown in Figures 4 and 5, the same housing 1, comprising a body 7 and a cover 8 is used to make a circuit breaker for currents of maximum current equal for example to 25 amperes, the conductors being of small section. The contact bars 28 are also the same as those in FIGS. 1 to 3. The connection device is of the caliper type and more particularly comprises a screw 42 which is screwed into a tapped hole 43 in the plate 28 and whose the head 44 is directed towards the opening 23 so as to be accessible through the latter by means of a screwdriver 45.

Entre sa tête 44 et sa région filetée 46, la vis 42 présente un étranglement 47 autour duquel est retenu prisonnier un organe de pincement mobile 48 de forme générale carrée incurvée dans le plan perpendiculaire à la direction d'introduction de l'extrémité dénudé 49 d'un petit conducteur de câblage 51.Between its head 44 and its threaded region 46, the screw 42 has a throttle 47 around which is held captive a movable pinching member 48 of generally square shape curved in the plane perpendicular to the direction of introduction of the stripped end 49 d '' a small wiring conductor 51.

Ainsi, de façon connue, lorsqu'un conducteur 49 est introduit à travers l'ouverture 17, on peut en serrant la vis 42 au moyen du tournevis 45, approcher l'organe de pincement mobile 48 de la barrette 28 constituant organe de pincement fixe, de manière à pincer l'extrémité dénudée 49 entre les organes de pincement fixe 28 et mobile 48.Thus, in known manner, when a conductor 49 is introduced through the opening 17, it is possible, by tightening the screw 42 by means of the screwdriver 45, to approach the movable clamping member 48 of the bar 28 constituting a fixed clamping member , so as to pinch the stripped end 49 between the fixed 28 and mobile 48 pinching members.

La dimension de chaque côté de l'organe de pincement mobile carré 48 est nettement inférieure à la distance entre les cloisons 11 successives du corps de boîtier 7. Ainsi, si aucun moyen n'est prévu, d'une part l'extrémité dénudée 49 risque d'être introduite trop loin de la vis 42, hors de portée de l'organe de pincement mobile 48, et d'autre part, l'organe de pincement mobile 48 va probablement être entraîné en rotation par la vis 42 et ne se trouvera pas en position angulaire correcte pour pincer l'extrémité dénudée 49 en fin de serrage.The dimension of each side of the square movable pinching member 48 is much less than the distance between the successive partitions 11 of the housing body 7. Thus, if no means are provided, on the one hand the stripped end 49 risk of being introduced too far from the screw 42, out of reach of the movable pinch member 48, and on the other hand, the movable pinch member 48 will probably be driven in rotation by the screw 42 and will not be in the correct angular position to pinch the stripped end 49 at the end of tightening.

Suivant l'invention, pour éviter ces inconvénients, on monte dans chaque logement 9 de l'appareil pour intensité relativement faible, un adaptateur 52 (représenté seul aux figures 6 et 7) en matière plastique moulée, en forme générale de parallélépipède évidé ayant les mêmes dimensions extérieures que la cage 36. L'adaptateur 52 comprend, de part et d'aute d'une cavité 80, deux ailes latérales 53 sensiblement parallèles à la direction d'introduction du conducteur 51 à travers l'ouverture 17. Les ailes latérales 53 s'étendent de part de d'autre de l'organe de pincement mobile 48 et de l'organe de pincement fixe 28, chacune contre la paroi 11 adjacente.According to the invention, to avoid these drawbacks, an adapter 52 (shown alone in FIGS. 6 and 7) made of molded plastic material, in the general shape of a hollowed parallelepiped having the same external dimensions as the cage 36. The adapter 52 comprises, on either side of a cavity 80, two lateral wings 53 substantially parallel to the direction of introduction of the conductor 51 through the opening 17. The wings lateral 53 extend on either side of the movable clamping member 48 and the fixed clamping member 28, each against the adjacent wall 11.

La distance libre d entre les ailes latérales 53 est légèrement supérieure à la dimension correspondante de l'organe de pincement mobile 48 de façon que ce dernier puisse coulisser entre les ailes 53 mais soit empêché de tourner entre elles autour de l'axe de la vis 42.The free distance d between the lateral wings 53 is slightly greater than the corresponding dimension of the movable pinching member 48 so that the latter can slide between the wings 53 but is prevented from rotating between them around the axis of the screw. 42.

Au voisinage de leur base, les ailes 53 sont surépaissies l'une vers l'autre de façon à présenter des faces 54 adjacentes aux bords latéraux de la barrette 28. Ainsi, chaque aile latérale 53 ferme l'un des côtés d'une zone de pincement comprise entre les organes de pincement fixe 28 et mobile 48.In the vicinity of their base, the wings 53 are thickened towards one another so as to present faces 54 adjacent to the lateral edges of the bar 28. Thus, each lateral wing 53 closes one of the sides of an area nip included between the fixed nip 28 and movable nip 48.

Les deux ailes latérales 53, sensiblement parallèles à la direction d'introduction du conducteur 51 à travers l'ouverture 17, sont reliées l'une à l'autre par un entretoisement comprenant, de part et d'autre de la cavité 80, un fond d'adaptateur 56 (voir figures 4, 6 et 7 et partie gauche de la figure 5) et une tête d'adaptateur 57. Le fond d'adaptateur 56 s'étend en regard de la face extérieure de l'organe de pincement stationnaire 28, opposée à la zone de pincement, et la tête d'adapteur 57 s'étend en regard de la face extérieure de l'organe de pincement mobile 48, laquelle face est également opposée à la zone de pincement.The two lateral wings 53, substantially parallel to the direction of introduction of the conductor 51 through the opening 17, are connected to each other by a bracing comprising, on either side of the cavity 80, a adapter base 56 (see FIGS. 4, 6 and 7 and left part of FIG. 5) and an adapter head 57. The adapter base 56 extends opposite the external face of the clamping member stationary 28, opposite the nip, and the adapter head 57 extends opposite the outer face of the movable nip 48, which face is also opposite to the pinching zone.

La tête d'adaptateur 57 est traversée par un puits 59 s'étendant selon l'axe de la vis 42, entre cette dernière et l'orifice 23, pour permettre au tournevis 45 d'atteindre la tête de vis 44 à travers l'orifice 23 et le puits 59.The adapter head 57 is traversed by a well 59 extending along the axis of the screw 42, between the latter and the orifice 23, to allow the screwdriver 45 to reach the screw head 44 through the orifice 23 and well 59.

Comme le montre la partie gauche de la figure 5, le puits 59 assure en outre un guidage de la tête de vis 44 lorsque les organes de pincement fixe 28 et mobile 48 sont au voisinage de leur éloignement mutuel maximal.As shown in the left-hand side of FIG. 5, the well 59 furthermore guides the screw head 44 when the fixed 28 and mobile 48 gripping members are in the vicinity of their maximum mutual distance.

La tête d'adaptateur 57 présente du côté adjacent à la cavité 80 une face de butée 61 qui, vue selon la direction d'introduction du conducteur 51 (figure 5), a un profil en voûte épousant sensiblement le profil de l'organe de pincement mobile 48 lorsque ce dernier est dans sa position d'écartement maximal par rapport à l'organe de pincement mobile 48 lorsque ce dernier est dans sa position d'écartement maximal par rapport à l'organe de pincement stationnaire 28, alors que la tête de vis 44 est engagée dans le puits 59 (voir partie gauche de la figure 5).The adapter head 57 has, on the side adjacent to the cavity 80, an abutment face 61 which, seen in the direction of introduction of the conductor 51 (FIG. 5), has a vaulted profile substantially matching the profile of the movable nipping 48 when the latter is in its position of maximum spacing relative to the movable nipping member 48 when the latter is in its position of maximum spacing relative to the stationary nipping member 28, while the head screw 44 is engaged in the well 59 (see left part of Figure 5).

Ainsi, la face 61 limite l'écartement mutuel des deux organes de pincement 28, 48.Thus, the face 61 limits the mutual spacing of the two gripping members 28, 48.

Lorsque l'organe de pincement mobile 48 est appuyé contre la face 61, la région filetée 46 ( voir partie gauche de la figure 5) de la vis 42 est dégagée du trou taraudé 43 de la plaquette 28. Par contre, la pointe rétrécie 63 de la vis est encore engagée dans le trou taraudé 43, de sorte que le dispositif de connexion à étrier 28, 42, 48 est entièrement prisonnier de l'adaptateur et reste prêt pour un resserrage ne nécessitant aucun repositionnement préalable.When the movable pinching member 48 is pressed against the face 61, the threaded region 46 (see left part of FIG. 5) of the screw 42 is released from the tapped hole 43 of the plate 28. On the other hand, the narrowed tip 63 of the screw is still engaged in the tapped hole 43, so that the stirrup connection device 28, 42, 48 is entirely trapped in the adapter and remains ready for tightening requiring no prior repositioning.

En faisant en sorte que seule la pointe 63 de la vis 42 est encore engagée dans le trou 43 de la plaquette 28 lorsque l'organe de pincement mobile 48 est en position d'écartement maximal, on donne à la vis sa plus petite longueur possible permettant de réaliser à la fois un écartement maximal donné entre les organes de pincement 28, 48 et la fonction de retenue de la vis 42 dans la position d'écartement maximal.By ensuring that only the tip 63 of the screw 42 is still engaged in the hole 43 of the plate 28 when the movable pinching member 48 is in the position of maximum spacing, the screw is given its shortest possible length allowing to achieve both a maximum spacing given between the clamping members 28, 48 and the retaining function of the screw 42 in the position maximum spacing.

Il est intéressant de réduire la longueur de la vis pour réduire le temps de vissage lors des opérations de câblage, et aussi pour réduire la saillie que fait la vis sous la plaquette 28 lorsque l'extrémité dénudée 49 est pincée entre les organes de pincement 28, 48, voir partie médiane de la figure 5. La partie saillante de la vis est reçue entre les deux nervures 38 partant de la paroi de fond 26 du logement 9.It is advantageous to reduce the length of the screw to reduce the screwing time during wiring operations, and also to reduce the projection made by the screw under the plate 28 when the stripped end 49 is pinched between the pinching members 28 , 48, see middle part of FIG. 5. The projecting part of the screw is received between the two ribs 38 starting from the bottom wall 26 of the housing 9.

La partie saillante de la vis 42 est également engagée dans une ouverture 64 pratiquée à travers le fond 56 de l'adaptateur. Le fond 56 repose sur les nervures 38. L'ouverture 64 a un diamètre supérieur à celui de la tige de la vis 42.The projecting part of the screw 42 is also engaged in an opening 64 made through the bottom 56 of the adapter. The bottom 56 rests on the ribs 38. The opening 64 has a diameter greater than that of the rod of the screw 42.

L'adaptateur 52 est positionné entre les nervures 38, sur lesquelles s'appuie son fond 56, et des épaulements 66 portés par des nervures internes 67 du couvercle 8, attenantes respectivement à la cloison 16 associée au logement 9 considéré, et à une paroi 68 du couvercle, laquelle contribue à définir la face d'extrémité 6 du boîtier 1. Les épaulement 66 sont tournés vers le corps 7 et situés sensiblement dans le plan de joint corps 7 - ­couvercle 8.The adapter 52 is positioned between the ribs 38, on which its bottom 56 rests, and shoulders 66 carried by internal ribs 67 of the cover 8, adjoining respectively the partition 16 associated with the housing 9 considered, and a wall 68 of the cover, which contributes to defining the end face 6 of the housing 1. The shoulders 66 are turned towards the body 7 and situated substantially in the joint plane body 7 - cover 8.

La position de l'adaptateur 52 selon la direction d'introduction du conducteur 51 est définie entre la cloison 16 du logement 9 considéré et la nervure 67, qui s'étend au-­delà de l'épaulement 66 derrière la languette 21.The position of the adapter 52 in the direction of introduction of the conductor 51 is defined between the partition 16 of the housing 9 considered and the rib 67, which extends beyond the shoulder 66 behind the tongue 21.

Les deux cloisons 11 adjacentes à un logement 9 considéré positionnent entre elles, à l'égard des déplacements latéraux, l'adaptateur 52 monté dans ce logement. Ainsi, l'adaptateur 52 occupe parfaitement le volume laissé libre par la cage 36. Comme dans le montage selon les figures 1 à 3, la barrette 28 est fixée au moyen des deux vis 128 sur l'aile 31 de la paroi 26 appartenant au corps 7 du boîtier 1.The two partitions 11 adjacent to a housing 9 considered position between them, with respect to the lateral displacements, the adapter 52 mounted in this housing. Thus, the adapter 52 perfectly occupies the volume left free by the cage 36. As in the assembly according to FIGS. 1 to 3, the bar 28 is fixed by means of two screws 128 on the wing 31 of the wall 26 belonging to the body 7 of the housing 1.

Ainsi, la barrette 28 et l'adaptateur 52 positionnent la vis 42 et l'organe de pincement mobile 48.Thus, the bar 28 and the adapter 52 position the screw 42 and the movable pinching member 48.

L'adaptateur présente en outre une saillie 69 comprenant un panneau avant 71 (figures 4, 6, 7) de forme rectangulaire, dont deux bords opposés sont raccordés aux ailes 53 par deux ailes porteuses 72 situées sensiblement dans le prolongement des ailes 53. Le panneau 71 ferme partiellement l'ouverture 17, et, plus particulièrement, ferme environ la moitié de l'ouverture 17 qui est adjacente à la languette 21 du couvercle, et qui par conséquent est la plus éloignée de la plage de contact 27, de manière que, lors du câblage, i'introduction du conducteur 51 se fasse systématiquement près de ladite plage, à travers une ouverture 81 que présente l'adaptateur entre le panneau 71 et le fond 56 (figures 6 et 7).The adapter also has a projection 69 comprising a front panel 71 (FIGS. 4, 6, 7) of rectangular shape, two opposite edges of which are connected to the wings 53 by two bearing wings 72 situated substantially in the extension of the wings 53. The panel 71 partially closes the opening 17, and, more particularly, closes approximately half of the opening 17 which is adjacent to the tongue 21 of the cover, and which therefore is furthest from the contact pad 27, so that, during wiring, the introduction of the conductor 51 is systematically carried out near said area, through an opening 81 which the adapter has between the panel 71 and the bottom 56 (FIGS. 6 and 7).

Comme le montre la figure 8, au montage, on commence par assembler une barrette 28, une vis 42, et un organe de pincement mobile 48, la vis 42 étant vissée sensiblement à fond pour rapprocher au maximum l'un de l'autre les organes de pincement 28 et 48. C'est seulement dans cette position d'écartement minimal ou quasi-minimal des organes de pincement que le dispositif de connexion à étrier est amovible relativement à l'adaptateur 52. Pour les assembler l'un avec l'autre, on engage d'abord la pointe 63 de la vis dans une ouverture arrière de l'adaptateur 52, opposée en service à l'ouverture 17. L'ouverture arrière de l'adaptateur 51 est définie entre un bord arrière libre 74 de la surface de butée 61, un bord arrière libre de chaque aile latérale 53, et un bord arrière libre 76 du fond 56.As shown in FIG. 8, during assembly, one begins by assembling a bar 28, a screw 42, and a movable pinching member 48, the screw 42 being screwed substantially fully to bring the two together as close as possible clamping members 28 and 48. It is only in this position of minimum or almost-minimal spacing of the clamping members that the yoke connection device is removable relative to the adapter 52. To assemble one with the 'other, we first engage the tip 63 of the screw in a rear opening of the adapter 52, opposite in use to the opening 17. The rear opening of the adapter 51 is defined between a free rear edge 74 of the abutment surface 61, a free rear edge of each lateral wing 53, and a free rear edge 76 of the bottom 56.

Comme le montre la figure 9, on fait ensuite pivoter et glisser le connecteur contre le bord 76 de manière à engager la point 63 de la vis dans l'ouverture 64 du fond 56, tandis que la barrette 28 vient se positionner à plate contre le fond 56.As shown in Figure 9, we then rotate and slide the connector against the edge 76 so as to engage the point 63 of the screw in the opening 64 of the bottom 56, while the bar 28 is positioned flat against the background 56.

Comme le montre la figure 10, si l'écartement entre les organes de pincement 28 et 48 est significative­ment différent de l'écartement minimal, il est impossible d'extraire le connecteur à étrier de l'adaptateur 52 car la tête de vis 44, trop en saillie par rapport à la barrette 28, vient buter contre la tête 57 de l'adaptateur 52 lors du mouvement pivotant - glissant autour du bord 76. Bien entendu, si l'écartement entre les organes de pincement 28, 48 est tel que la tête 44 est déjà engagée dans la puits 59 de la tête 57, même de début de mouvement d'extraction est rendu impossible.As shown in Figure 10, if the spacing between the clamping members 28 and 48 is significantly different from the minimum spacing, it is impossible extract the stirrup connector from the adapter 52 because the screw head 44, too protruding from the bar 28, abuts against the head 57 of the adapter 52 during the pivoting movement - sliding around the edge 76 Of course, if the spacing between the clamping members 28, 48 is such that the head 44 is already engaged in the well 59 of the head 57, even at the start of the extraction movement is made impossible.

Ainsi, l'adaptateur qui vient d'être décrit procure les effets techniques suivants :
- obturation d'une partie de l'ouvertue 17, partie - rendue inutile par la suppression de la cage, la partie restante permettant une introduction correcte du conducteur sous l'étrier ;
- guidage de l'étrier lors du serrage ;
- retenue de l'adaptateur 52 par son fond 56 engagé sous la barrette 28 et retenue de l'ensemble vis 42 - ­étrier 48 par butée de l'étrier 48 sous la tête 57 de l'adaptateur 52 lorsque la pointe de la vis est encore engagée dans son trou taraudé ;
- par conséquent, imperdabilité des différents constituants du dispositif de raccordement (sauf à effectuer en ordre inverse les opérations décrites en référence aux figures 8 et 9) ; et
- facilité de montage.Thus, the adapter which has just been described provides the following technical effects:
- obturation of part of the opening 17, part - made unnecessary by the removal of the cage, the remaining part allowing a correct introduction of the conductor under the stirrup;
- stirrup guide during tightening;
- retaining the adapter 52 by its bottom 56 engaged under the bar 28 and retaining the screw assembly 42 - stirrup 48 by stirrup of the stirrup 48 under the head 57 of the adapter 52 when the tip of the screw is still engaged in its tapped hole;
- Consequently, captivity of the various components of the connection device (unless the operations described in reference to Figures 8 and 9 are carried out in reverse order); and
- ease of assembly.

Dans l'exemple représenté à la figure 11, trois barres bus 82 alimentent plusieurs disjoncteurs 83a, 83b,... L'entrée du disjoncteur 83b, au lieu d'être raccordée directement aux barres 82, est raccordée par des ponts 86a à l'entrée du disjoncteur 83a. D'autres ponts 86b raccordent l'entrée du disjoncteur 83b à l'entrée d'un disjoncteur suivant, non représenté.In the example shown in FIG. 11, three bus bars 82 supply several circuit breakers 83a, 83b, ... The input of the circuit breaker 83b, instead of being connected directly to the bars 82, is connected by bridges 86a to l input of circuit breaker 83a. Other bridges 86b connect the input of the circuit breaker 83b to the input of a next circuit breaker, not shown.

Chaque disjoncteur 83a, 83b, réglé pour ouvrir le circuit lorsqu'une intensité maximale relativement faible est atteinte, ne délivre à sa sortie qu'un courant ayant au plus l'intensité maximale en question. Ceci permet de raccorder à la sortie de chaque disjoncteur 83a, 83b des conducteurs 87 de faible section. Pour cela, on place aux bornes de sortie 4 un dispositif de raccordement selon l'invention, comprenant un adaptateur 52 positionnant et guidant un dispositif de connexion à étrier.Each circuit breaker 83a, 83b, set to open the circuit when a relatively low maximum current is reached, delivers at its output only a current having at most the maximum current in question. This allows connect conductors 87 of small cross-section to the output of each circuit breaker 83a, 83b. For this, a connection device according to the invention is placed at the output terminals 4, comprising an adapter 52 positioning and guiding a yoke connection device.

Par contre, chaque borne d'entrée 2 doit accueillir deux conducteurs 84, 86a ou respectivement 86a, 86b. De plus,chacun de ces deux conducteurs véhicule le courant destiné à tous les disjoncteurs situés en aval plus, pour l'un des deux conducteurs, le courant destiné au disjoncteur auquel appartient la borne en question. Ces conducteurs doivent donc être de calibre relativement fort. Le raccordement de deux tels conducteurs à une même borne conduit à choisir un dispositif de connexion plus gros, par exemple du type à cage 36, sans adaptateur.On the other hand, each input terminal 2 must accommodate two conductors 84, 86a or respectively 86a, 86b. In addition, each of these two conductors carries the current intended for all the circuit breakers located downstream plus, for one of the two conductors, the current intended for the circuit breaker to which the terminal in question belongs. These conductors must therefore be of relatively large size. The connection of two such conductors to the same terminal leads to choosing a larger connection device, for example of the cage type 36, without adapter.

Selon l'invention, les boîtiers 1 de ces disjoncteurs 83a, 83b sont identiques à celui des figures 1 à 5, les bornes 2 étant équipées de dispositifs de connexion à cage 36 et les bornes 4 étant équipées de dispositifs de connexion à étrier 48 logés dans des adaptateurs 52.According to the invention, the housings 1 of these circuit breakers 83a, 83b are identical to that of FIGS. 1 to 5, the terminals 2 being fitted with cage connection devices 36 and the terminals 4 being fitted with stirrup connection devices 48 housed in adapters 52.

Bien entendu, l'invention n'est pas limitée aux exemples décrits et représentés.Of course, the invention is not limited to the examples described and shown.

Par exemple, on pourrait prévoir que l'adaptateur comporte, à la place du fond 56, simplement deux rebords inférieurs des ailes 53, ce qui permettrait l'assemblage adaptateur-dispositif de connexion par simple écartement des ailes 53.For example, provision could be made for the adapter to have, instead of the bottom 56, simply two lower edges of the wings 53, which would allow the adapter-connection device assembly by simply spacing the wings 53.

Il pourrait de même être prévu que les moyens d'entretoisement ne comportent que le fond tel que 56, la tête étant remplacée par des conformations de chaque aile latérale appropriées pour, par exemple, guider la vis et/ou limiter l'écartement de l'étrier par rapport à la barrette.It could likewise be provided that the bracing means only comprise the bottom such as 56, the head being replaced by conformations of each lateral wing suitable for, for example, guiding the screw and / or limiting the spacing of the '' bracket relative to the bar.

Les dispositifs de connexion peuvent être du type à serrage élastique dans lequel un organe de pincement mobile est solicité par un ressort pour pincer le conducteur contre un organe de pincement fixe.The connection devices can be of the elastic clamping type in which a movable clamping member is applied by a spring to clamp the conductor against a fixed clamping member.

Claims (14)

1. Dispositif de raccordement électrique pour borne (2, 4) d'appareil électrique, destiné à raccorder amoviblement un conducteur (51) de câblage électrique de l'appareil avec une plage conductrice (27) de l'appareil, le dispositif de raccordement comprenant un logement (9) formé dans un boîtier (1) de l'appareil et communiquant avec l'extérieur du boîtier par une ouverture (17) d'introduction du conducteur de câblage (51) et par une ouverture (23) d'introduction d'un tournevis ou analogue (45), et un organe de pincement fixe (28) portant la plage conductrice (27) et un organe de pincement mobile (48) sollicités l'un vers l'autre par un moyen de serrage (42) actionnable par le tournevis ou analogue, caractérisé en ce que dans le logement (9) du boîtier (1) est emboîté sensiblement sans jeu un adaptateur (52) présentant une cavité dans laquelle se positionnent les organes de pincement (28, 48) et dans laquelle est guidé l'organe de pincement mobile (48), l'adaptateur présentant des ouvertures (59, 81) en regard des ouvertures (17, 23) du logement (9).1. Electrical connection device for terminal (2, 4) of an electrical appliance, intended to removably connect a conductor (51) of electrical wiring of the appliance with a conductive pad (27) of the appliance, the connection device comprising a housing (9) formed in a housing (1) of the apparatus and communicating with the outside of the housing by an opening (17) for introducing the wiring conductor (51) and by an opening (23) for introduction of a screwdriver or the like (45), and a fixed clamping member (28) carrying the conductive pad (27) and a movable clamping member (48) biased towards each other by a clamping means ( 42) actuable by the screwdriver or the like, characterized in that in the housing (9) of the housing (1) is fitted substantially without play an adapter (52) having a cavity in which the gripping members (28, 48) are positioned and in which the movable clamping member (48) is guided, the adapter having openings tures (59, 81) opposite the openings (17, 23) of the housing (9). 2. Dispositif de raccordement électrique selon la revendication 1, dans lequel l'organe de pincement fixe (28) et l'organe de pincement mobile (48) définissent entre eux une zone de pincement en regard de l'ouverture (17) d'introduction du conducteur et sont traversés par une vis de serrage commune (42) qui est en prise de filetage avec l'un (28) des organes de pincement et se trouve engagée en rotation libre sans possibilité de coulissement dans l'autre organe de pincement (48), caractérisé en ce que l'adaptateur (52) comporte deux ailes latérales (53) sensiblement parallèles à la direction d'introduction du conducteur (51), qui s'étendent de part et d'autre de l'organe de pincement mobile (48), ferment latéralement la zone de pincement et retiennent l'organe de pincement mobile (48) à l'encontre des rotations autour de l'axe de la vis (42), ces deux ailes (53) étant reliées par un entretoisement (56, 57) s'étendant en regard d'une face extérieure de l'un au moins des organes de pincement (28, 48) tournée à l'opposé de la zone de pincement.2. Electrical connection device according to claim 1, in which the fixed pinching member (28) and the movable pinching member (48) define between them a pinching zone opposite the opening (17) of introduction of the conductor and are crossed by a common clamping screw (42) which is in threading engagement with one (28) of the clamping members and is engaged in free rotation without possibility of sliding in the other clamping member (48), characterized in that the adapter (52) comprises two lateral wings (53) substantially parallel to the direction of introduction of the conductor (51), which extend on either side of the member movable pinch (48), laterally close the pinch zone and retain the movable pinch member (48) against the rotations around the axis of the screw (42), these two wings (53) being connected by a bracing (56, 57) extending opposite an external face of at least one of the members nip (28, 48) turned away from the nip. 3. Dispositif selon la revendication 2, caractérisé en ce que l'entretoisement (56, 57) comprend, en regard de la face extérieure de l'organe de pincement mobile (48), une tête d'adaptateur (57) limitant l'écartement mutuel des deux organes de pincement (28, 48) et traversée par l'une (59) des ouvertures précitées, pour le passage du tournevis ou analogue (45), située en regad de l'ouverture (23) d'introduction de tournevis (45) ou analogue prévue dans le boîtier (1, 8).3. Device according to claim 2, characterized in that the bracing (56, 57) comprises, facing the outer face of the movable clamping member (48), an adapter head (57) limiting the mutual spacing of the two gripping members (28, 48) and traversed by one (59) of the aforementioned openings, for the passage of the screwdriver or the like (45), located in regad of the opening (23) for introducing screwdriver (45) or the like provided in the housing (1, 8). 4. Dispositif selon la revendication 3, caractérisé en ce que l'ouverture (59) pour le passage du tournevis ou analogue à travers la tête d'adaptateur (57) est conformée en puits de guidage de la tête (44) de la vis de serrage (42).4. Device according to claim 3, characterized in that the opening (59) for the passage of the screwdriver or the like through the adapter head (57) is shaped as a guide well for the head (44) of the screw clamp (42). 5. Dispositif selon l'une des revendications 3 ou 4, caractérisé en ce que la tête (57) de l'adaptateur comporte, face à l'organe de pincement mobile (48) une face de butée (61) qui, vue selon la direction d'introduction du conducteur (51), a un profil en voûte épousant sensiblement le profil de l'organe de pincement mobile (48) lorsque ce dernier est dans la position d'écartement maximal par rapport à l'organe de pincement stationnaire (28).5. Device according to one of claims 3 or 4, characterized in that the head (57) of the adapter comprises, facing the movable clamping member (48) an abutment face (61) which, seen according to the direction of introduction of the conductor (51), has a vaulted profile substantially matching the profile of the movable clamping member (48) when the latter is in the position of maximum separation from the stationary clamping member (28). 6. Dispositif selon la revendication 5, caractérisé en ce que le trou taraudé est porté par l'organe de pincement stationnaire (28), en ce qu'à l'opposé de la tête (44) de la vis (42), la tige de la vis (42) a une extrémité rétrécie (63), et en ce que cette extrémité rétrécie (63) est engagée dans le trou taraudé (43) lorsque l'organe de pincement mobile (48) est en butée contre la tête (57) de l'adaptateur (52).6. Device according to claim 5, characterized in that the tapped hole is carried by the stationary clamping member (28), in that, opposite the head (44) of the screw (42), the screw rod (42) has a narrowed end (63), and in that this narrowed end (63) is engaged in the tapped hole (43) when the movable pinch member (48) is in abutment against the head (57) of the adapter (52). Dispositif selon l'une des revendications 3 à 6, caractérisé en ce que l'entretoisement comprend un fond (56) de l'adaptateur adjacent à une face de l'organe de pincement stationnaire (28) opposée à la zone de pincement, en ce que le trou taraudé (43) est porté par l'organe de pincement stationnaire, en ce que le sous-ensemble comprenant la vis et les deux organes de pincement (28, 48), est engageable dans l'adaptateur par pivotement autour d'un bord libre (76) du fond (56) lorsque les deux organes de pincement (28, 48) sont au voisinage d'une position de rapprochement mutuel maximal, et en ce que la butée de la tête de vis (44) contre la tête d'adaptateur (57) empêche le dégagement dudit sous-­ensemble lorsque l'écartement mutuel des deux organes de pincement (28, 48) dépasse un certain seuil.Device according to one of claims 3 to 6, characterized in that the bracing comprises a bottom (56) of the adapter adjacent to a face of the stationary clamping member (28) opposite the clamping zone, in that the threaded hole (43) is carried by the pinching member stationary, in that the subassembly comprising the screw and the two clamping members (28, 48), can be engaged in the adapter by pivoting around a free edge (76) of the bottom (56) when the two members pinch (28, 48) are in the vicinity of a position of maximum mutual approximation, and in that the stop of the screw head (44) against the adapter head (57) prevents the release of said subassembly when the mutual spacing of the two gripping members (28, 48) exceeds a certain threshold. 8. Dispositif selon la revendication 7, caractérisé en ce que l'adaptateur (52) forme une ouverture arrière vers l'intérieur du boîtier du côté opposé à l'ouverture (17) d'introduction des conducteur (51), et ledit bord libre (76) du fond (56) est adjacent à l'ouverture arrière.8. Device according to claim 7, characterized in that the adapter (52) forms a rear opening towards the inside of the housing on the side opposite the opening (17) for introducing the conductors (51), and said edge free (76) from the bottom (56) is adjacent to the rear opening. 9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que le logement (9) est défini conjointement entre un corps (7) et en couvercle (8) du boîtier (1) et l'adaptateur est emboîté de manière amovible entre le corps et le couvercle.9. Device according to one of claims 1 to 8, characterized in that the housing (9) is defined jointly between a body (7) and cover (8) of the housing (1) and the adapter is fitted so removable between the body and the cover. 10. Dispositif selon l'une des revendications 1 à 9, caractérisé en ce que l'adaptateur (52) comprend une saillie (69) insérée dans l'ouverture (17) d'introduction du conducteur (51) et fermant partiellement ladite ouverture d'un côté éloigné de la page conductrice (27) de manière que,lors du câblage, l'introduction du conducteur (51) se fasse systématiquement près de ladite plage (27).10. Device according to one of claims 1 to 9, characterized in that the adapter (52) comprises a projection (69) inserted in the opening (17) for introducing the conductor (51) and partially closing said opening on a side remote from the conductive page (27) so that, during wiring, the introduction of the conductor (51) is systematically carried out near said area (27). 11. Dispositif selon l'une des revendications 1 à 10, caractérisé en ce que l'adaptateur (52) est en matière plastique.11. Device according to one of claims 1 to 10, characterized in that the adapter (52) is made of plastic. 12. Disjoncteur, comprenant une série de bornes d'entrée (2) et une série de bornes de sortie (4), caractérisé en ce que les bornes de l'une au moins des séries (2, 4) sont équipées chacune d'un dispositif selon l'une des revendications 1 à 11.12. Circuit breaker, comprising a series of input terminals (2) and a series of output terminals (4), characterized in that the terminals of at least one of the series (2, 4) are each equipped with a device according to one of claims 1 to 11. 13. Disjoncteur selon la revendication 12, caractérisé en ce que l'autre série de bornes (4) est équipée de dispositifs de connexion dont les dimensions extérieures sont sensiblement les mêmes que celles des adaptateurs (52).13. Circuit breaker according to claim 12, characterized in that the other series of terminals (4) is equipped with connection devices whose external dimensions are substantially the same as those of the adapters (52). 14. Ensemble de constituants pour la fabrication d'appareils électriques, comprenant des boîtiers tous identiques (1) dans lesquels sont définis des logements (9) communiquant avec l'extérieur desdits boîtiers par une ouvertures (17) d'introduction d'un conducteur de câblage (34, 51) et par une ouverture (23) d'introduction d'un tournevis ou analogue (24, 45), et des premiers dispositifs de connexion par serrage (28, 36, 41, 143) pour le serrage de conducteurs de calibre relativement fort (34), ces dispositifs étant emboîtables sensiblement sans jeu dans lesdits logements, caractérisé en ce qu'il comprend en outre des seconds dispositifs de connexion par serrage (28, 44, 48) pour le serrage de conducteurs de calibre relativement faible (51), et des adaptateurs (52) emboîtables sensiblement sans jeu dans les logements (9) et présentant une cavité adaptée à recevoir et à guider les seconds dispositifs de connexion par serrage (28, 44, 48), cette cavité présentant des ouvertures (59, 81) positionnées pour être en regard des ouvertures (17, 23) des logements (9) lorsque les adaptateurs (52) sont emboîtés dans les logements (9).14. Set of components for the manufacture of electrical devices, comprising all identical housings (1) in which are defined housings (9) communicating with the exterior of said housings by an openings (17) for introducing a conductor wiring (34, 51) and through an opening (23) for introducing a screwdriver or the like (24, 45), and first clamping connection devices (28, 36, 41, 143) for clamping relatively strong gauge conductors (34), these devices being nestable substantially without play in said housings, characterized in that it further comprises second clamping connection devices (28, 44, 48) for clamping gauge conductors relatively small (51), and adapters (52) nestable substantially without play in the housings (9) and having a cavity adapted to receive and guide the second clamping connection devices (28, 44, 48), this cavity having openings (59, 81) positioned to be opposite the openings (17, 23) of the housings (9) when the adapters (52) are fitted into the housings (9).
EP88402245A 1987-09-11 1988-09-07 Electric connection device for an electric terminal, circuit breaker equipped therewith and set of constituent parts therefor Expired - Lifetime EP0307305B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8712609 1987-09-11
FR8712609A FR2620578B1 (en) 1987-09-11 1987-09-11 ELECTRICAL CONNECTION DEVICE FOR TERMINAL OF ELECTRICAL APPARATUS, CIRCUIT BREAKER THUS EQUIPPED, AND ASSEMBLY OF CONSTITUENTS RELATING THERETO

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EP0307305A1 true EP0307305A1 (en) 1989-03-15
EP0307305B1 EP0307305B1 (en) 1993-01-07

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US (1) US4889504A (en)
EP (1) EP0307305B1 (en)
JP (1) JPH01157073A (en)
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ITMI20061496A1 (en) * 2006-07-28 2008-01-29 Morsettitalia Spa TERMINAL WITH U-SHAPED CONDUCTOR FOR THE CONNECTION OF ELECTRIC WIRES
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DE2514206A1 (en) * 1975-04-01 1976-10-07 Norbert Weiner Wire clamp for forming soldered connection - has screw inside caggaaggge rotated to clamp wire against solder tag
US4056301A (en) * 1976-03-11 1977-11-01 Norden Alexander Retained screw assembly
DE3442625A1 (en) * 1984-11-22 1986-05-22 Siemens AG, 1000 Berlin und 8000 München Overload relay

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CH462914A (en) * 1967-01-25 1968-09-30 English Electric Co Ltd Device for connecting electric cables
FR2507828A1 (en) * 1981-06-12 1982-12-17 Legrand Sa TERMINAL OF CONNECTION, IN PARTICULAR FOR TRANSFORMER
DE3201169C2 (en) * 1982-01-16 1984-06-28 Danfoss A/S, Nordborg Device for clamping electrical conductors, in particular wires
DE3614592C1 (en) * 1986-04-30 1987-07-23 Krone Ag Terminal block for cable cores, especially telephone cables

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2514206A1 (en) * 1975-04-01 1976-10-07 Norbert Weiner Wire clamp for forming soldered connection - has screw inside caggaaggge rotated to clamp wire against solder tag
US4056301A (en) * 1976-03-11 1977-11-01 Norden Alexander Retained screw assembly
DE3442625A1 (en) * 1984-11-22 1986-05-22 Siemens AG, 1000 Berlin und 8000 München Overload relay

Also Published As

Publication number Publication date
FR2620578B1 (en) 1990-01-05
EP0307305B1 (en) 1993-01-07
FR2620578A1 (en) 1989-03-17
DE3877295D1 (en) 1993-02-18
DE3877295T2 (en) 1993-05-06
JPH01157073A (en) 1989-06-20
US4889504A (en) 1989-12-26

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