EP2613337B1 - Assembly of an electrical appliance for line protection in two blocks. - Google Patents

Assembly of an electrical appliance for line protection in two blocks. Download PDF

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Publication number
EP2613337B1
EP2613337B1 EP20120199712 EP12199712A EP2613337B1 EP 2613337 B1 EP2613337 B1 EP 2613337B1 EP 20120199712 EP20120199712 EP 20120199712 EP 12199712 A EP12199712 A EP 12199712A EP 2613337 B1 EP2613337 B1 EP 2613337B1
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EP
European Patent Office
Prior art keywords
unit
assembly
electrical
line protection
fixing
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EP20120199712
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German (de)
French (fr)
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EP2613337A1 (en
Inventor
Francis Deckert
Thierry Sitz
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Hager Electro SAS
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Hager Electro SAS
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Publication of EP2613337A1 publication Critical patent/EP2613337A1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/04—Cases; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0228—Mounting or assembling the different parts of the circuit breaker having provisions for interchangeable or replaceable parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device

Definitions

  • the present invention relates to a circuit breaker-type electrical line protection device formed by two separate blocks, namely a breaking block and a magneto-thermal or electronic trip unit.
  • Each block is likely to be tested independently of the other block during their manufacture. Once assembled, the two blocks work together.
  • a significant advantage with a device formed by two separate blocks lies in the fact of being able to associate trigger blocks of different calibres with the same breaking block. This makes it possible to form devices of different ranges from the same base.
  • WO 2011/109497 discloses the assembly of two blocks in a single assembly direction, but holding in position before assembly is not firm because it is made in the same direction as the assembly direction. In addition, other blocks are added to form the entire circuit breaker, the complete assembly is therefore long to achieve.
  • the object of the invention is to overcome these disadvantages. To do this, it has means for fixing and electrically connecting the two blocks in a very simple and fast manner. This specific design allows for example to make the assembly of each block in a place equipped with adequate production means, and rapid final assembly of the two blocks in a place near the point of sale of the device so as to configure the products for the target market.
  • the cut-off block constitutes the upper block of the apparatus in the position of use, whereas the magnetothermic or electronic trip block constitutes the lower block.
  • the apparatus thus has a front panel from which a control lever protrudes, a rear panel for fixing the device in the use position in the cabinet, upper and lower faces comprising devices for connection to the network and to the line (s) to protect.
  • the apparatus comprises means for guiding and holding in assembly position of the blocks.
  • said means for guiding and holding in assembly position of the blocks are constituted at least in part by said electrical connection means.
  • the assembly of the apparatus is thus very simple. It is not necessary to combine different movements to assemble the blocks, a single movement in a single assembly direction aided by the guiding and holding means in the assembly position is sufficient to relatively position and hold them properly in position before joining them.
  • the relative positioning of the two blocks must be accurate at the time of their nesting and the two blocks must then be maintained in this precise position during the connection phases electrical and mechanical fixing.
  • These guiding and holding means in position thus fulfill two functions: the guiding function of one block with respect to the other during the interlocking phase, and the holding function in the assembly position by blocking in the three directions during the phases of electrical connection and mechanical fastening.
  • connection screw per current line is sufficient.
  • this clamping screw cooperates with a nut embedded in the bumper element.
  • the bumper element is in the shape of an inverted U whose branches form abutments preventing the displacement of said guide element, inserted in the bumper element, in the second direction perpendicular to the assembly direction, the base of the U having the nut drowned.
  • the mechanical means for fixing the blocks are also very simple to implement. They consist of at least one fixing screw adapted to be inserted successively into an orifice of each block in the assembly direction and to cooperate with a clamping element, said orifices facing each other in the assembly position of the apparatus .
  • the clamping element consists of an embedded nut or a tapping made in the last hole through which the fastening screw passes during its insertion.
  • the mechanical fixing of the blocks is therefore extremely simple, and can be performed using a single tool.
  • the apparatus may also comprise means for mechanically stiffening the blocks consisting of at least one stud projecting from a block and able to fit into a recess provided for this purpose in the opposite block. These stiffening means make it possible to compensate for the operating clearances resulting from mechanical fixing by screwing.
  • the apparatus (1) is shown in the use position, with the cutoff block (2) at the top, and the trigger block (3) at the bottom.
  • the protection device (1) is therefore controlled by a control lever (4) protruding from the front panel (5) of the device (1) provided with a cover.
  • the back cover (6) clings to a plate of an electrical distribution box.
  • the upper face (7) of the apparatus (1) has upstream terminals (16) for electrical connection to the network, and the lower face (8) has downstream terminals (17) for electrical connection to the electrical lines to be protected (see figure 3 ).
  • the figure 2 shows the two separate blocks (2, 3) composing the apparatus (1). These blocks (2, 3) are assembled in the assembly direction (X).
  • Guiding and holding means in the assembly position are provided in order to fit the two blocks (2, 3) and position them correctly before fixing them.
  • These guiding and holding means in assembly position consist, for each pole, in a lug (9) protruding from the cutoff block (2), and surmounted by an inverted U-shaped bumper element (12), and in two guiding elements (10, 11) projecting from the trigger block (3).
  • the tab (9) is inserted between the two guide elements (10, 11) in the assembly direction (X) and simultaneously, the first guide element (10) is inserted into the bumper element (12).
  • the two blocks (2, 3) are thus nested one inside the other and locked in both directions perpendicular to the assembly direction (X). Indeed, the base and the branches of the U of the bumper element (12) prevent any movement of the tab (9) and the guide element (10) in both directions perpendicular to the assembly direction (X ).
  • a clamping screw (13) adapted to fit into an orifice provided in the tab (9) and in each of the two guide elements ( 10, 11) clamps the lug (9) and the two guide elements (10, 11) against the base of the bumper element (12), as illustrated in FIG. figure 3 .
  • breaking block (2) it is necessary to electrically connect the breaking block (2) to the tripping block (3), so as to distribute the network current arriving at the breaking block (2) via the upstream terminal (16) connected to the contact. fixed (15) to the lines to be protected at the output of the trip unit (3) via the downstream terminal (17).
  • this electrical connection is made simultaneously with the positioning of the blocks (2, 3) and their holding in assembly position.
  • the lug (9) protruding from the breaking block (2) corresponds in fact to a terminal (9) for electrical connection of the breaking block (2) to which is connected the movable contact (14) via a ground braid (not shown)
  • the first guiding element (10) of the tripping block (3) corresponds to a terminal (10) for electrical connection of the tripping block (3) connected to means of connection to the downstream terminal (17) while the second element guide (11) of the tripping block (3) corresponds to a portion of a magnetic yoke (11) surrounding the terminal (10).
  • the tightening screw (13) enables the terminal (9) of the breaking block (2) to be brought into contact with the terminal (10) of the trip unit (3), and thus the electrical connection between the two blocks (2). , 3).
  • the tightening of the screw (13) is effected by means of an embedded nut (not shown) in the base of the bumper element (12).
  • the final phase of the assembly is to mechanically fix a block to the other, by means of fixing screws.
  • the fixing is carried out by two screws (18) in the vicinity of the front panel (5) of the device (1), as illustrated in FIG. figure 4 , and two screws (19) in the vicinity of the back cover (6) of the apparatus (1) as visible in figure 5 .
  • the two screws (18) are arranged on either side of the lever (4) of the handle, and are introduced into orifices (20) provided for this purpose in the cutoff block (2), then each reach a nut embedded in an orifice (24) (visible in figure 2 ) of the tripping block (3) for their tightening.
  • the two screws (19) are introduced into holes (21) provided for this purpose in the trigger block (3), then reach each an embedded nut (not shown) in a hole (25) of the cutoff block (2) for clamping.
  • Rigidification means are also present in the apparatus. They consist of two pins (22) projecting from the cutoff block (2) and able to fit into two recesses (23) provided for this purpose in the tripping block (3).

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  • Breakers (AREA)

Description

La présente invention concerne un appareil électrique de protection de ligne, du type disjoncteur, formé par deux blocs distincts, à savoir un bloc de coupure et un bloc de déclenchement magnétothermique ou électronique.The present invention relates to a circuit breaker-type electrical line protection device formed by two separate blocks, namely a breaking block and a magneto-thermal or electronic trip unit.

Chaque bloc est susceptible d'être testé indépendamment de l'autre bloc lors de leur fabrication. Une fois assemblés, les deux blocs fonctionnent conjointement.Each block is likely to be tested independently of the other block during their manufacture. Once assembled, the two blocks work together.

Un avantage significatif avec un appareil formé par deux blocs distincts réside dans le fait de pouvoir associer des blocs de déclenchement de différents calibres avec un même bloc de coupure. Cela permet de former des appareils de différentes gammes à partir d'une même base.A significant advantage with a device formed by two separate blocks lies in the fact of being able to associate trigger blocks of different calibres with the same breaking block. This makes it possible to form devices of different ranges from the same base.

Il existe déjà des appareils électriques de protection de ligne formés par deux parties indépendantes. Leur inconvénient principal réside en général dans l'assemblage fastidieux des deux parties, tant au niveau du positionnement relatif des parties qu'au niveau de leur fixation mécanique, réalisée généralement par des vis dont l'accès est très souvent malaisé avec les outils standards du type tournevis. De plus, la fixation des deux parties doit se combiner avec des moyens de maintien en position d'assemblage, réalisés parfois de manière un peu aléatoire par le monteur de l'appareilThere are already electrical line protection devices formed by two independent parts. Their main disadvantage generally resides in the tedious assembly of the two parts, both in terms of the relative positioning of the parts and in terms of their mechanical fastening, generally achieved by screws whose access is very often difficult with the standard tools of screwdriver type. In addition, the attachment of the two parts must be combined with holding means in assembly position, sometimes made somewhat randomly by the fitter of the apparatus

Le document WO 2011/109497 , d'après le préambule de la revendication 1, divulgue l'assemblage de deux blocs selon une seule direction d'assemblage, mais le maintien en position avant assemblage n'est pas ferme car il est réalisé dans la même direction que la direction d'assemblage. De plus, d'autres blocs sont à ajouter pour former l'ensemble du disjoncteur, le montage complet étant donc long à réaliser.The document WO 2011/109497 , according to the preamble of claim 1, discloses the assembly of two blocks in a single assembly direction, but holding in position before assembly is not firm because it is made in the same direction as the assembly direction. In addition, other blocks are added to form the entire circuit breaker, the complete assembly is therefore long to achieve.

L'objectif de l'invention consiste à remédier à ces inconvénients. Pour ce faire, elle présente des moyens pour fixer et raccorder électriquement les deux blocs de manière très simple et rapide. Cette conception spécifique permet par exemple de faire effectuer le montage de chaque bloc dans un lieu équipé de moyens de production adéquats, et l'assemblage final rapide des deux blocs dans un lieu proche du point de vente de l'appareil de manière à configurer les produits pour le marché visé.The object of the invention is to overcome these disadvantages. To do this, it has means for fixing and electrically connecting the two blocks in a very simple and fast manner. This specific design allows for example to make the assembly of each block in a place equipped with adequate production means, and rapid final assembly of the two blocks in a place near the point of sale of the device so as to configure the products for the target market.

De manière générale, le bloc de coupure constitue le bloc supérieur de l'appareil en position d'utilisation, tandis que le bloc de déclenchement magnétothermique ou électronique en constitue le bloc inférieur.In general, the cut-off block constitutes the upper block of the apparatus in the position of use, whereas the magnetothermic or electronic trip block constitutes the lower block.

Par souci de simplification, les éléments composant l'appareil sont décrits en relation avec la position d'utilisation de l'appareil lorsqu'il est mis en place dans un coffret de distribution électrique.For the sake of simplicity, the components of the apparatus are described in relation to the position of use of the apparatus when it is put in place in an electrical distribution box.

L'appareil présente ainsi une façade avant d'où dépasse une manette de commande, une façade arrière de fixation de l'appareil en position d'utilisation dans le coffret, des faces supérieure et inférieure comportant des dispositifs de connexion au réseau et à la(aux) ligne(s) à protéger.The apparatus thus has a front panel from which a control lever protrudes, a rear panel for fixing the device in the use position in the cabinet, upper and lower faces comprising devices for connection to the network and to the line (s) to protect.

L'appareil comporte des moyens de guidage et de maintien en position d'assemblage des blocs.The apparatus comprises means for guiding and holding in assembly position of the blocks.

Il s'agit d'un appareil de protection dont le fonctionnement est standard.This is a protection device whose operation is standard.

L'invention se caractérise à titre principal en ce que ledit bloc de coupure comporte la manette de commande d'un contact mobile par ligne entre deux positions stables, respectivement en appui et à distance d'un contact fixe, ladite manette étant reliée au contact mobile par l'intermédiaire d'une serrure mécanique apte à basculer entre deux positions stables correspondant à l'ouverture et à la fermeture des contacts suite à une action manuelle sur le levier de la manette ou à basculer dans une position d'ouverture des contacts suite à une action mécanique d'un actionneur du bloc de déclenchement répercutant un défaut électrique sur une ligne, et en ce que l'appareil est formé par l'emboîtement des deux blocs selon une seule direction d'assemblage d'allure verticale lorsque l'appareil est en position d'utilisation, et en ce qu'il comporte :

  • des moyens de raccordement électrique d'un bloc à l'autre dans une direction d'allure perpendiculaire à la direction d'assemblage ;
  • des moyens mécaniques de fixation des blocs en position d'assemblage dans une direction d'allure parallèle à la direction d'assemblage.
The main feature of the invention is that said breaking block comprises the control lever of a mobile contact per line between two stable positions, respectively in support and at a distance from a fixed contact, said handle being connected to the contact. movable by means of a mechanical lock able to switch between two stable positions corresponding to the opening and closing of the contacts following a manual action on the lever of the handle or to switch to an open position of the contacts following a mechanical action of a actuator of the trip unit echoing an electrical fault on a line, and in that the apparatus is formed by the interlocking of the two blocks in a single direction of vertical assembly assembly when the apparatus is in use position, and in that it comprises:
  • electrical connection means from one block to another in a direction of course perpendicular to the assembly direction;
  • mechanical means for fixing the blocks in the assembly position in a direction parallel to the direction of assembly.

Avantageusement, lesdits moyens de guidage et de maintien en position d'assemblage des blocs sont constitués au moins en partie par lesdits moyens de raccordement électrique.Advantageously, said means for guiding and holding in assembly position of the blocks are constituted at least in part by said electrical connection means.

L'assemblage de l'appareil est ainsi très simple. Il n'est pas nécessaire de combiner différents mouvements pour assembler les blocs, un unique mouvement dans une seule direction d'assemblage aidé par les moyens de guidage et de maintien en position d'assemblage suffit pour les positionner relativement et les maintenir correctement en position avant de les solidariser.The assembly of the apparatus is thus very simple. It is not necessary to combine different movements to assemble the blocks, a single movement in a single assembly direction aided by the guiding and holding means in the assembly position is sufficient to relatively position and hold them properly in position before joining them.

En effet, pour que la fixation mécanique et le raccordement électrique des deux blocs puissent être réalisés, le positionnement relatif des deux blocs doit être précis au moment de leur emboîtement et les deux blocs doivent ensuite être maintenus dans cette position précise lors des phases de raccordement électrique et de fixation mécanique.Indeed, for the mechanical fixing and the electrical connection of the two blocks can be achieved, the relative positioning of the two blocks must be accurate at the time of their nesting and the two blocks must then be maintained in this precise position during the connection phases electrical and mechanical fixing.

Pour ce faire, les moyens de guidage et de maintien en position d'assemblage des blocs sont localisés au niveau des surfaces de contact entre les deux blocs et consistent en :

  • une patte saillant orthogonalement du bloc de coupure et arrangée de façon à venir s'insérer entre deux éléments de guidage présents sur le bloc de déclenchement, de manière à empêcher le déplacement d'un bloc par rapport à l'autre selon une première direction perpendiculaire à la direction d'assemblage ;
  • un élément butoir saillant orthogonalement du bloc de coupure et dans lequel vient s'insérer au moins un élément de guidage, de manière à empêcher le déplacement d'un bloc par rapport à l'autre selon une deuxième direction perpendiculaire à la direction d'assemblage ;
  • une vis de serrage de la patte contre les éléments de guidage, de manière à empêcher le déplacement d'un bloc par rapport à l'autre selon une troisième direction parallèle à la direction d'assemblage.
To do this, the means for guiding and holding the assembly position of the blocks are located at the contact surfaces between the two blocks and consist of:
  • a tab protruding orthogonally from the cutoff block and arranged to fit between two guide elements present on the trigger block, so as to prevent the movement of one block relative to the other in a first perpendicular direction to the assembly direction;
  • a bumper element protruding orthogonally from the breaking block and into which is inserted at least one guide element, so as to prevent the displacement of a block relative to the other in a second direction perpendicular to the assembly direction ;
  • a clamping screw of the tab against the guide elements, so as to prevent movement of one block relative to the other in a third direction parallel to the assembly direction.

Ces moyens de guidage et de maintien en position remplissent ainsi deux fonctions : la fonction de guidage d'un bloc par rapport à l'autre lors de la phase d'emboîtement, et la fonction de maintien en position d'assemblage par blocage dans les trois directions lors des phases de raccordement électrique et de fixation mécanique.These guiding and holding means in position thus fulfill two functions: the guiding function of one block with respect to the other during the interlocking phase, and the holding function in the assembly position by blocking in the three directions during the phases of electrical connection and mechanical fastening.

Selon l'invention, les moyens de raccordement électrique entre les deux blocs consistent en :

  • une borne de raccordement du bloc de coupure à laquelle est connecté ledit contact mobile ;
  • une borne de raccordement du bloc de déclenchement reliée à des moyens de connexion ;
la mise en contact desdites bornes de raccordement les unes contre les autres étant réalisée par le serrage d'une vis de raccordement apte à s'insérer dans un orifice pratiqué dans chacune desdites bornes de raccordement des deux blocs.According to the invention, the electrical connection means between the two blocks consist of:
  • a connection terminal of the breaking block to which said movable contact is connected;
  • a connection terminal of the trip unit connected to connection means;
contacting said connection terminals against each other is performed by tightening a connecting screw adapted to be inserted into an orifice made in each of said connecting terminals of the two blocks.

Le raccordement électrique des deux blocs ne nécessite ainsi qu'un simple vissage. Une vis de raccordement par ligne de courant est donc suffisante.The electrical connection of the two blocks thus requires only a simple screwing. A connection screw per current line is sufficient.

Selon une possibilité avantageuse propre à l'invention, les moyens de guidage et de maintien en position d'assemblage des blocs sont au moins en partie constitués par les moyens de raccordement électrique tels que décrits précédemment. Ainsi :

  • ladite patte saillant du bloc de coupure correspond à une borne de raccordement électrique du bloc de coupure à laquelle est connecté le contact mobile ;
  • l'un des deux éléments de guidage présents sur le bloc de déclenchement correspond à une borne de raccordement électrique du bloc de déclenchement ;
  • la vis de serrage de la patte contre les éléments de guidage correspond à une vis de raccordement pour la mise en contact des bornes de raccordement électrique les unes contre les autres.
According to an advantageous possibility peculiar to the invention, the means for guiding and holding in assembly position of the blocks are at least partially constituted by the electrical connection means as described above. So :
  • said protruding tab of the breaking block corresponds to an electrical connection terminal of the cutoff unit to which the movable contact is connected;
  • one of the two guide elements present on the tripping block corresponds to an electrical connection terminal of the tripping block;
  • the fixing screw of the tab against the guide elements corresponds to a connecting screw for contacting the electrical connection terminals against each other.

Avantageusement, cette vis de serrage coopère avec un écrou noyé dans l'élément butoir.Advantageously, this clamping screw cooperates with a nut embedded in the bumper element.

De préférence, l'élément butoir est en forme de U renversé dont les branches forment des butées empêchant le déplacement dudit élément de guidage, inséré dans l'élément butoir, selon la deuxième direction perpendiculaire à la direction d'assemblage, la base du U comportant l'écrou noyé.Preferably, the bumper element is in the shape of an inverted U whose branches form abutments preventing the displacement of said guide element, inserted in the bumper element, in the second direction perpendicular to the assembly direction, the base of the U having the nut drowned.

L'utilisation des moyens de raccordement électrique pour former certains moyens de guidage et de maintien en position des blocs permet de simplifier la conception des deux blocs. Le simple fait de guider les blocs et de les maintenir en position d'assemblage avec la vis de serrage entraîne leur raccordement électrique de façon simultanée. Il ne reste alors plus qu'à les fixer mécaniquement. Un tel montage permet ainsi un gain de temps précieux.The use of the electrical connection means to form certain means for guiding and holding blocks in position makes it possible to simplify the design of the two blocks. Simply guiding the blocks and keeping them in the assembly position with the clamping screw causes their electrical connection to occur simultaneously. All that remains is to fix them mechanically. Such an arrangement thus saves valuable time.

Tout comme les moyens de guidage et de maintien en position d'assemblage des blocs, les moyens mécaniques de fixation des blocs sont eux aussi très simples de mise en oeuvre. Ils consistent en au moins une vis de fixation apte à s'insérer successivement dans un orifice de chaque bloc selon la direction d'assemblage et à coopérer avec un élément de serrage, lesdits orifices se faisant face en position d'assemblage de l'appareil.Just as the means for guiding and maintaining assembly position of the blocks, the mechanical means for fixing the blocks are also very simple to implement. They consist of at least one fixing screw adapted to be inserted successively into an orifice of each block in the assembly direction and to cooperate with a clamping element, said orifices facing each other in the assembly position of the apparatus .

De préférence, l'élément de serrage consiste en un écrou noyé ou un taraudage pratiqué dans le dernier orifice traversé par la vis de fixation au cours de son insertion. La fixation mécanique des blocs est donc extrêmement simple, et peut être réalisée à l'aide d'un unique outil.Preferably, the clamping element consists of an embedded nut or a tapping made in the last hole through which the fastening screw passes during its insertion. The mechanical fixing of the blocks is therefore extremely simple, and can be performed using a single tool.

Pour que la fixation soit robuste et sans jeu entre les deux blocs, les moyens mécaniques de fixation sont répartis de la façon suivante :

  • deux vis de fixation localisées au voisinage de la façade avant de l'appareil, chaque vis étant apte à s'insérer successivement dans un orifice du bloc de coupure et dans un orifice du bloc de déclenchement, les deux orifices se faisant face en position d'assemblage de l'appareil ;
  • deux vis de fixation localisées au voisinage de la façade arrière de l'appareil, chaque vis étant apte à s'insérer successivement dans un orifice du bloc de déclenchement et dans un orifice du bloc de coupure, les deux orifices se faisant face en position d'assemblage de l'appareil.
So that the attachment is robust and without play between the two blocks, the mechanical fixing means are distributed as follows:
  • two fastening screws located in the vicinity of the front of the device, each screw being adapted to be inserted successively into a orifice of the cutoff block and in a hole of the trigger block, the two orifices facing each other in the assembly position of the apparatus;
  • two fastening screws located in the vicinity of the rear face of the apparatus, each screw being adapted to be inserted successively into a hole of the trigger block and into a hole of the cutoff block, the two orifices facing each other in the position of assembly of the device.

En plus de ces moyens mécaniques de fixation des blocs, l'appareil peut également comporter des moyens de rigidification mécanique des blocs consistant en au moins un tenon saillant d'un bloc et apte à s'emboîter dans un évidement prévu à cet effet dans le bloc opposé. Ces moyens de rigidification permettent de compenser les jeux de fonctionnement résultant de la fixation mécanique par vissage.In addition to these mechanical means for fixing the blocks, the apparatus may also comprise means for mechanically stiffening the blocks consisting of at least one stud projecting from a block and able to fit into a recess provided for this purpose in the opposite block. These stiffening means make it possible to compensate for the operating clearances resulting from mechanical fixing by screwing.

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre d'un mode particulier de réalisation de l'invention, donné à titre d'exemple non limitatif, et représenté aux dessins annexés sur lesquels :

  • la figure 1 représente une vue d'ensemble d'un appareil électrique de protection de ligne en position d'utilisation ;
  • la figure 2 est une vue éclatée de l'appareil électrique en deux blocs ;
  • la figure 3 est une vue en coupe de l'appareil pour représenter le raccordement électrique entre les deux blocs ;
  • la figure 4 montre en perspective la façade avant de l'appareil avec les vis de fixation ;
  • la figure 5 illustre la façade arrière de l'appareil avec les vis de fixation et de raccordement électrique entre les deux blocs.
Other advantages and features will emerge more clearly from the following description of a particular embodiment of the invention, given by way of non-limiting example, and represented in the accompanying drawings in which:
  • the figure 1 is an overview of an electrical line protection apparatus in use position;
  • the figure 2 is an exploded view of the electrical apparatus in two blocks;
  • the figure 3 is a sectional view of the apparatus for showing the electrical connection between the two blocks;
  • the figure 4 shows in perspective the front of the device with the fixing screws;
  • the figure 5 illustrates the rear panel of the unit with the fixing screws and electrical connection between the two blocks.

Selon un mode de réalisation de l'invention, l'appareil électrique de protection de ligne (1), généralement un disjoncteur, comporte un bloc de coupure (2) associé à un bloc de déclenchement (3).

  • La figure 3 montre un exemple de l'intérieur d'un tel appareil (1). Le bloc de coupure (2) comporte une manette (4) de commande d'au moins un contact mobile (14) entre deux positions stables, respectivement en appui et à distance d'un contact fixe (15), ladite manette (4) étant reliée au contact mobile (14) par l'intermédiaire d'une serrure mécanique apte à basculer en entraînant l'ouverture des contacts (14, 15) suite à une action manuelle sur la manette (4) ou suite à une action mécanique d'un actionneur du bloc de déclenchement (3) répercutant un défaut électrique sur une ligne.
  • La figure 1 présente un disjoncteur tripolaire. Selon d'autres modes de réalisation non représentés, l'appareil pourrait être un disjoncteur uni, bi ou tétrapolaire.
According to one embodiment of the invention, the electrical line protection device (1), generally a circuit breaker, comprises a breaking block (2) associated with a tripping block (3).
  • The figure 3 shows an example of the interior of such a device (1). The breaking block (2) comprises a lever (4) for controlling at least one movable contact (14) between two stable positions, respectively in support and at a distance from a fixed contact (15), said handle (4) being connected to the movable contact (14) by means of a mechanical lock capable of tilting by causing the opening of the contacts (14, 15) following a manual action on the handle (4) or following a mechanical action of an actuator of the trip unit (3) echoing an electrical fault on a line.
  • The figure 1 has a three-pole circuit breaker. According to other embodiments not shown, the apparatus could be a uni, bi or four-pole circuit breaker.

Comme mentionné précédemment, par souci de simplification de la présentation d'un mode de réalisation préféré de l'invention, les éléments composant l'appareil sont décrits en relation avec la position d'utilisation dans laquelle l'appareil est mis en place dans un coffret de distribution électrique. L'utilisation des termes relatifs de position, tels que « supérieur », « avant », « haut », etc., ne doit pas être interprétée comme un facteur limitant.As mentioned above, for the sake of simplification of the presentation of a preferred embodiment of the invention, the components of the apparatus are described in relation to the position of use in which the apparatus is installed in a electrical distribution cabinet. The use of relative positional terms, such as "superior", "before", "high", etc., should not be construed as a limiting factor.

Sur la figure 1, l'appareil (1) est représenté en position d'utilisation, avec le bloc de coupure (2) en haut, et le bloc de déclenchement (3) en bas.On the figure 1 , the apparatus (1) is shown in the use position, with the cutoff block (2) at the top, and the trigger block (3) at the bottom.

L'appareil de protection (1) est donc commandé par une manette (4) de commande dépassant de la façade avant (5) de l'appareil (1) munie d'un couvercle. La façade arrière (6) s'accroche sur une plaque d'un coffret de distribution électrique.The protection device (1) is therefore controlled by a control lever (4) protruding from the front panel (5) of the device (1) provided with a cover. The back cover (6) clings to a plate of an electrical distribution box.

La face supérieure (7) de l'appareil (1) présente des bornes amont (16) de raccordement électrique au réseau, et la face inférieure (8) présente des bornes aval (17) de raccordement électrique aux lignes électriques à protéger (voir figure 3).The upper face (7) of the apparatus (1) has upstream terminals (16) for electrical connection to the network, and the lower face (8) has downstream terminals (17) for electrical connection to the electrical lines to be protected (see figure 3 ).

La figure 2 montre les deux blocs (2, 3) distincts composant l'appareil (1). Ces blocs (2, 3) sont assemblés selon la direction d'assemblage (X).The figure 2 shows the two separate blocks (2, 3) composing the apparatus (1). These blocks (2, 3) are assembled in the assembly direction (X).

Des moyens de guidage et de maintien en position d'assemblage sont prévus afin d'emboîter les deux blocs (2, 3) et de les positionner correctement avant de les fixer. Ces moyens de guidage et de maintien en position d'assemblage consistent, pour chaque pôle, en une patte (9) saillant du bloc de coupure (2), et surmontée d'un élément butoir (12) en forme de U renversé, et en deux éléments de guidage (10, 11) saillant du bloc de déclenchement (3). Concrètement, la patte (9) vient s'insérer entre les deux éléments de guidage (10, 11) selon la direction d'assemblage (X) et simultanément, le premier élément de guidage (10) s'insère dans l'élément butoir (12). Les deux blocs (2, 3) se trouvent ainsi emboîtés l'un dans l'autre et bloqués dans les deux directions perpendiculaires à la direction d'assemblage (X). En effet, la base et les branches du U de l'élément butoir (12) empêchent tout déplacement de la patte (9) et de l'élément de guidage (10) dans les deux directions perpendiculaires à la direction d'assemblage (X).Guiding and holding means in the assembly position are provided in order to fit the two blocks (2, 3) and position them correctly before fixing them. These guiding and holding means in assembly position consist, for each pole, in a lug (9) protruding from the cutoff block (2), and surmounted by an inverted U-shaped bumper element (12), and in two guiding elements (10, 11) projecting from the trigger block (3). Concretely, the tab (9) is inserted between the two guide elements (10, 11) in the assembly direction (X) and simultaneously, the first guide element (10) is inserted into the bumper element (12). The two blocks (2, 3) are thus nested one inside the other and locked in both directions perpendicular to the assembly direction (X). Indeed, the base and the branches of the U of the bumper element (12) prevent any movement of the tab (9) and the guide element (10) in both directions perpendicular to the assembly direction (X ).

Pour bloquer les blocs (2, 3) dans la direction d'assemblage (X), une vis de serrage (13) apte à s'insérer dans un orifice prévu dans la patte (9) et dans chacun des deux éléments de guidage (10, 11) vient serrer la patte (9) et les deux éléments de guidage (10, 11) contre la base de l'élément butoir (12), comme illustré en figure 3.To block the blocks (2, 3) in the assembly direction (X), a clamping screw (13) adapted to fit into an orifice provided in the tab (9) and in each of the two guide elements ( 10, 11) clamps the lug (9) and the two guide elements (10, 11) against the base of the bumper element (12), as illustrated in FIG. figure 3 .

Une fois les deux blocs (2, 3) emboîtés, correctement positionnés l'un par rapport à l'autre, et maintenus en position, il suffit de les fixer fermement l'un à l'autre pour former l'appareil (1), comme cela sera décrit plus loin dans la description.Once the two blocks (2, 3) interlocked, correctly positioned relative to each other, and held in position, simply attach them firmly to one another to form the device (1) as will be described later in the description.

Par ailleurs, il est nécessaire de raccorder électriquement le bloc de coupure (2) au bloc de déclenchement (3), de manière à distribuer le courant du réseau arrivant au bloc de coupure (2) via la borne amont (16) connectée au contact fixe (15) vers les lignes à protéger en sortie du bloc de déclenchement (3) via la borne aval (17).Furthermore, it is necessary to electrically connect the breaking block (2) to the tripping block (3), so as to distribute the network current arriving at the breaking block (2) via the upstream terminal (16) connected to the contact. fixed (15) to the lines to be protected at the output of the trip unit (3) via the downstream terminal (17).

Selon l'invention, ce raccordement électrique est réalisé simultanément au positionnement des blocs (2, 3) et à leur maintien en position d'assemblage.According to the invention, this electrical connection is made simultaneously with the positioning of the blocks (2, 3) and their holding in assembly position.

En effet, la patte (9) saillant du bloc de coupure (2) correspond en fait à une borne (9) de raccordement électrique du bloc de coupure (2) à laquelle est connecté le contact mobile (14) via une tresse de masse (non représentée). Le premier élément de guidage (10) du bloc de déclenchement (3) correspond à une borne (10) de raccordement électrique du bloc de déclenchement (3) reliée à des moyens de connexion à la borne aval (17) tandis que le second élément de guidage (11) du bloc de déclenchement (3) correspond à une partie d'une culasse magnétique (11) entourant la borne (10). La vis (13) de serrage permet la mise en contact de la borne (9) du bloc de coupure (2) avec la borne (10) du bloc de déclenchement (3), et donc le raccordement électrique entre les deux blocs (2, 3). Le serrage de la vis (13) est effectué au moyen d'un écrou noyé (non représenté) dans la base de l'élément butoir (12).Indeed, the lug (9) protruding from the breaking block (2) corresponds in fact to a terminal (9) for electrical connection of the breaking block (2) to which is connected the movable contact (14) via a ground braid (not shown) The first guiding element (10) of the tripping block (3) corresponds to a terminal (10) for electrical connection of the tripping block (3) connected to means of connection to the downstream terminal (17) while the second element guide (11) of the tripping block (3) corresponds to a portion of a magnetic yoke (11) surrounding the terminal (10). The tightening screw (13) enables the terminal (9) of the breaking block (2) to be brought into contact with the terminal (10) of the trip unit (3), and thus the electrical connection between the two blocks (2). , 3). The tightening of the screw (13) is effected by means of an embedded nut (not shown) in the base of the bumper element (12).

Comme mentionné précédemment, une fois les deux blocs (2, 3) emboîtés, correctement positionnés et maintenus en position, la phase finale de l'assemblage consiste à fixer mécaniquement un bloc à l'autre, au moyen de vis de fixation.As mentioned above, once the two blocks (2, 3) nested, correctly positioned and held in position, the final phase of the assembly is to mechanically fix a block to the other, by means of fixing screws.

Dans la configuration choisie, la fixation est réalisée par deux vis (18) au voisinage de la façade avant (5) de l'appareil (1), comme illustré en figure 4, et deux vis (19) au voisinage de la façade arrière (6) de l'appareil (1) comme cela est visible en figure 5.In the chosen configuration, the fixing is carried out by two screws (18) in the vicinity of the front panel (5) of the device (1), as illustrated in FIG. figure 4 , and two screws (19) in the vicinity of the back cover (6) of the apparatus (1) as visible in figure 5 .

Les deux vis (18) sont disposées de part et d'autre du levier (4) de la manette, et sont introduites dans des orifices (20) prévus à cet effet dans le bloc de coupure (2), puis atteignent chacune un écrou noyé dans un orifice (24) (visible en figure 2) du bloc de déclenchement (3) pour leur serrage.The two screws (18) are arranged on either side of the lever (4) of the handle, and are introduced into orifices (20) provided for this purpose in the cutoff block (2), then each reach a nut embedded in an orifice (24) (visible in figure 2 ) of the tripping block (3) for their tightening.

De la même manière, les deux vis (19) sont introduites dans des orifices (21) prévus à cet effet dans le bloc de déclenchement (3), puis atteignent chacune un écrou noyé (non représenté) dans un orifice (25) du bloc de coupure (2) pour leur serrage.In the same way, the two screws (19) are introduced into holes (21) provided for this purpose in the trigger block (3), then reach each an embedded nut (not shown) in a hole (25) of the cutoff block (2) for clamping.

Cette répartition des points d'attache permet une fixation mécanique robuste des deux blocs (2, 3) formant l'appareil (1).This distribution of the attachment points allows a robust mechanical attachment of the two blocks (2, 3) forming the apparatus (1).

Des moyens de rigidification sont également présents dans l'appareil. Ils consistent en deux tenons (22) saillant du bloc de coupure (2) et apte à s'emboîter dans deux évidements (23) prévus à cet effet dans le bloc de déclenchement (3).Rigidification means are also present in the apparatus. They consist of two pins (22) projecting from the cutoff block (2) and able to fit into two recesses (23) provided for this purpose in the tripping block (3).

Bien entendu, l'exemple ci-dessus ne doit pas être considéré comme exhaustif de l'invention, qui comporte au contraire l'ensemble des variantes de formes et de configurations qui sont à la portée de l'homme de l'art.Of course, the above example should not be considered exhaustive of the invention, which instead comprises all the variants of shapes and configurations that are within the reach of those skilled in the art.

Claims (12)

  1. Electrical line protection appliance (1) equipped with a circuit breaker and made up of two separate units (2, 3), namely:
    - a breaker unit (2) forming the top part of the appliance (1) in the working position;
    - a thermomagnetic or electronic trip unit (3) forming the lower part of the appliance (1) in the working position;
    the appliance (1) being apt to be placed in an electrical distribution box and having a front face (5) from which a control lever (4) protrudes, a rear face (6) for fixing the appliance (1) in the working position inside a box, some superior (7) and inferior (8) faces having some means of connection to the power network and to the line(s) requiring protection, the appliance having some means of guiding and maintaining the assembled units (2, 3) in position, characterized in that
    the said breaker unit (2) contains the control lever (4) for one mobile contact (14) per line switchable between two stable positions, respectively against and away from a fixed contact (15), the said lever being linked to the mobile contact (14) by means of a mechanism which can switch between two stable positions corresponding to the opening and closing of the contacts (14, 15) following a manual operation of the lever (4) or to switch into the contacts (14, 15) open position following a mechanical operation of an actuator in the trigger unit (3) relating to an electrical fault on a line,
    and in that it is formed by joining the two units (2, 3) according to a single direction (X) of assembly which is substantially vertical when the appliance (1) is in the working position, and in that it includes:
    - a means of electrical connection between one unit (2, 3) and the other in a direction substantially perpendicular to the direction (X) of assembly;
    - a mechanical means of fixing the units (2, 3) in an assembled position in a direction substantially parallel to the direction (X) of assembly.
  2. Electrical line protection apparatus according to the preceding claim, characterized in that the said means of guiding and maintaining the assembled units (2, 3) in position consists of at least some part of the said means of electrical connection.
  3. Electrical line protection apparatus according to one of the preceding claims, characterized in that the means of guiding and maintaining the assembled units (2, 3) in position is located in the area where the surfaces of the two units (2, 3) are in contact and consists of:
    - a bracket (9) protruding orthogonally from the breaker unit (2) and positioned so that it inserts between the two guiding elements (10, 11) present on the trigger unit (3), in a manner that prevents the movement of one unit (2, 3) in relation to the other according to a first direction perpendicular to the direction (X) of assembly;
    - a stop (12) protruding orthogonally from the breaker unit (2) and in which at least one guiding element (10) inserts in a manner that prevents the movement of one unit (2, 3) in relation to the other according to a second direction perpendicular to the direction (X) of assembly;
    - a screw (13) fixing the bracket (9) against the guiding elements (10, 11), in a manner that prevents the movement of one unit (2, 3) in relation to the other according to a third direction parallel to the direction (X) of assembly.
  4. Electrical line protection apparatus according to one of the preceding claims, characterized in that the means of electrical connection between the two units (2, 3) consists of:
    - a connection terminal (9) on the breaker unit (2) to which the said mobile contact (14) is connected;
    - a connection terminal (10) on the tripping unit (3) linking to the means of connection;
    the contact between the said connection terminals (9, 10) from one to the other being achieved by the tightening of a connection screw (13) apt to insert in a hole manufactured in each of the said connection terminals (9, 10) of the two units (2, 3).
  5. Electrical line protection apparatus according to the preceding claim, characterized in that it has one connection screw (13) for each electrical line.
  6. Electrical line protection apparatus according to the preceding claim, characterized in that:
    - the said bracket (9) protruding from the breaker unit (2) corresponds to an electrical connection terminal on the breaker unit (2) to which the mobile contact (14) is connected;
    - one of the two guiding elements (10) present on the trigger unit (3) corresponds to an electrical connection terminal on the trigger unit (3);
    - the screw (13) fixing the bracket (9) against the guiding elements (10, 11) corresponds to a connection screw used for holding the electrical terminals (9, 10) against each other.
  7. Electrical line protection apparatus according to the preceding claim, characterized in that the fixing screw (13) works in cooperation with a nut integrated in the stop element (12).
  8. Electrical line protection apparatus according to the preceding claim, characterized in that the stop element (12) is in the form of an upside down U of which the legs form the stops preventing the movement of the said guiding element (10), inserted in the stop element (12), according to the second direction perpendicular to the direction (X) of assembly, the base of the U containing the integrated nut.
  9. Electrical line protection apparatus according to one of the preceding claims, characterized in that the mechanical means of fixing the units (2, 3) in the assembled position consists of at least one fixing screw (18, 19) apt to be successively inserted into a hole (20, 21, 24, 25) in each unit (2, 3) according to the direction (X) of assembly and working in cooperation with a locking component, the said holes (20, 21, 24, 25) facing each other when the apparatus is in the assembled position.
  10. Electrical line protection apparatus according to the preceding claim, characterized in that the locking element consists of an integrated nut or a thread manufactured in the last hole (20, 21, 24, 25) crossed by the fixing screw (13) during its insertion.
  11. Electrical line protection apparatus according to the preceding claim, characterized in that the mechanical means of fixing consists of:
    - two fixing screws (18) located near the front face (5) of the apparatus (1), each screw (18) being apt to be successively inserted into a hole (20) in the breaker unit (2) and a hole (24) in the trigger unit (3), the two holes (20, 24) facing each other when the apparatus (1) is in the assembled position;
    - two fixing screws (19) located near the rear face (6) of the apparatus (1), each screw (19) being suitable to be successively inserted in a hole (21) in the trigger unit (3) and in a hole (25) in the breaker unit (2), the two holes (21, 25) facing each other when the apparatus is in the assembled position.
  12. Electrical line protection equipment according to the preceding claim, characterized in that it contains a means of mechanically stiffening the units (2, 3) consisting of at least one tenon (22) protruding from one unit (2, 3) and apt to be slotted into a groove (23) foreseen for this purpose in the opposing unit (2, 3).
EP20120199712 2012-01-09 2012-12-28 Assembly of an electrical appliance for line protection in two blocks. Active EP2613337B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1250189A FR2985599B1 (en) 2012-01-09 2012-01-09 ASSEMBLY OF A LINE PROTECTION ELECTRICAL APPARATUS INTO TWO BLOCKS.

Publications (2)

Publication Number Publication Date
EP2613337A1 EP2613337A1 (en) 2013-07-10
EP2613337B1 true EP2613337B1 (en) 2014-05-14

Family

ID=47388486

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120199712 Active EP2613337B1 (en) 2012-01-09 2012-12-28 Assembly of an electrical appliance for line protection in two blocks.

Country Status (2)

Country Link
EP (1) EP2613337B1 (en)
FR (1) FR2985599B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704064B1 (en) * 1993-04-16 1995-06-02 Merlin Gerin Electric current measuring block.
US6750743B1 (en) * 2003-05-13 2004-06-15 General Electric Company Integrated thermal and magnetic trip unit
JP5084779B2 (en) * 2008-11-27 2012-11-28 東京エレクトロン株式会社 Plug-in unit
DE102009008677A1 (en) * 2009-02-12 2010-08-19 Moeller Gmbh Switchgear System
US8169283B2 (en) * 2010-03-03 2012-05-01 Schneider Electric USA, Inc. Circuit breaker trip unit support

Also Published As

Publication number Publication date
EP2613337A1 (en) 2013-07-10
FR2985599A1 (en) 2013-07-12
FR2985599B1 (en) 2014-03-21

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