EP1327253A1 - Interrupting device for switching apparatus - Google Patents

Interrupting device for switching apparatus

Info

Publication number
EP1327253A1
EP1327253A1 EP01967447A EP01967447A EP1327253A1 EP 1327253 A1 EP1327253 A1 EP 1327253A1 EP 01967447 A EP01967447 A EP 01967447A EP 01967447 A EP01967447 A EP 01967447A EP 1327253 A1 EP1327253 A1 EP 1327253A1
Authority
EP
European Patent Office
Prior art keywords
slide
movable
movable bridge
bridge
contact pressure
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.)
Withdrawn
Application number
EP01967447A
Other languages
German (de)
French (fr)
Inventor
Pierre Duchemin
Bruno Jacquet
Gilles Baurand
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP1327253A1 publication Critical patent/EP1327253A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2008—Facilitate mounting or replacing contact bridge and pressure spring on carrier
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts

Definitions

  • the present invention relates to a device for breaking a contact pole for an electrical circuit breaker, contactor or contactor-circuit breaker type device, comprising a movable contact carrier which has a slide engaged in a movable bridge which supports movable contacts.
  • the invention also relates to an electrical appliance provided with at least one such cut-off device.
  • the device for breaking a contact pole comprises a movable contact carrier generally consisting of a slide movable along an axis between a rest position and a work position.
  • the slider can be controlled by manual mechanisms or by magnetic and / or thermal trigger mechanisms activated in the event of an electrical fault, for example. Its role is to mechanically drive the movement of a movable bridge supporting movable contacts. This movement causes the separation between the movable contacts and the fixed contacts, which corresponds to the rest position. In the working position, the movable contacts are pressed against the fixed contacts, usually thanks to a contact pressure spring.
  • a contact pole of a switching device comprising a slide in which a movable contact bridge is held in an opening of the slide using a contact spring.
  • the slide does not provide any particular means to allow its assembly with the movable bridge, without using the contact spring.
  • the object of the invention is to propose a simple assembly solution between the slide and the movable bridge, as well as to reduce the size of such a cut-off device while retaining a dimension of the widest contact pressure spring. possible to guarantee good efficiency of the spring.
  • the assembly must also keep sufficient flexibility to obtain a contact pressure correctly distributed between the movable contacts.
  • the invention presents a cut-off device for a switching device composed of a movable contact holder comprising a contact pressure spring, a slide movable along a longitudinal axis between a working position and a rest position, and a movable bridge provided a lower face and an upper face supporting two movable contacts.
  • the breaking device is characterized by the fact that the movable bridge has a central opening in which is inserted at least one appendage belonging to the slider and comprising latching means allowing the slider to assemble to the movable bridge and by the fact that the contact pressure spring has a first end which presses on the underside of the movable bridge.
  • the slide comprises abutment means for the movable bridge which are constituted on the one hand by a retaining face of the slide cooperating with the upper face of the movable bridge and on the other hand by lateral ends on the slide framing lateral faces of the movable bridge.
  • the latching means and the stop means are arranged to leave sufficient clearance for the movable bridge in a direction substantially parallel to the longitudinal axis of the slide, so that, in the working position, the contact pressure spring can exert pressure on the movable bridge in order to be able to effectively press the movable contacts of the movable bridge onto corresponding fixed contacts of the switching device.
  • FIG. 1 shows a front view of a movable contact carrier with a slide, a movable bridge supporting two movable contacts and a contact pressure spring
  • FIGS. 2 and 3 show the same movable contact carrier respectively in side view and in bottom view
  • FIG. 4 and 5 show the movable contact carrier in sectional views respectively along a plane YY and along a plane XX
  • - Figure 6 shows, in the working position, a device for cutting a contact pole according to l 'invention.
  • the device for breaking a contact pole described in the present invention comprises a movable contact carrier 10 consisting of: “a slide 20 movable between a working position and a rest position along a longitudinal axis X ,
  • a movable bridge 30 arranged along a transverse axis W substantially perpendicular to the axis X and comprising a lower face 31, an upper face 32 and lateral faces 35, • a contact pressure spring 15 of substantially cylindrical shape, a first of which end 16 presses on the underside 31 of the movable bridge 30 and of which a second opposite end 17 presses on a base 12 of the switch device,
  • the movable contacts 41 are pressed against corresponding fixed contacts 42 of the switching device directly thanks to the contact pressure spring 15.
  • the movable contacts 41 are separated from the fixed contacts 42 by the slide 20 which is mechanically secured to the movable bridge 30.
  • the slide 20 comprises a lower part 21 in which the different elements are located allowing the assembly of the movable bridge 30 with the slide 20.
  • the lower part 21 comprises at least one appendage 22 provided with means of snap-in to assemble the slide with the movable bridge.
  • these latching means consist of at least one external lug 34.
  • the lower part 21 of the slide 20 comprises two appendages 22, the opposite external faces 27 of which are each provided with a external lug 34. These external faces 27 have a rounded in their lower part.
  • the two appendages 22 are separated by a central recess 23 made in the slide 20.
  • the slide is preferably made from an insulating plastic material so that the central recess 23 is sufficient to give elasticity to the external pins 34 of the appendages 22 in a direction substantially perpendicular to the axis X.
  • the movable bridge 30 has a central opening 33, for example of rectangular shape.
  • the appendages 22 of the slide are inserted into the central opening 33 of the movable bridge 30.
  • the rounded edges of the external walls 27 of the appendages 22 abut against the edges from the central opening 33 which forces the outer lugs 34 to move towards one another, until they come under the underside 31 of the movable bridge 30.
  • the elasticity of the two appendages 22 then returns to the initial position and the external pins 34 bear against the lower face 31, thus making the movable bridge 30 and the slide 20 integral.
  • the assembly operation is therefore very simple and does not require any additional part, making it quick and economical.
  • the slide also includes stop means for maintaining the movable bridge 30.
  • these stop means consist firstly of an internal retaining face 26 arranged in the slide 20 and which cooperates with the upper face 32 of the movable bridge 30 so that, when moving from the working position to the rest position, the retaining face 26 drives the mobile bridge 30 along the longitudinal axis X.
  • the stop means also include lateral ends 25 situated on the lower part 21 of the slide and which frame the lateral faces 35 of the movable bridge 30 to maintain the latter in position along a transverse axis Z (see FIGS. 3 and 5).
  • the lower part 21 of the slide 20 has four lateral ends 25: one end for each side along the transverse axis Z, each end on the same side being split in two because of the central recess 23.
  • the lateral ends 25 do not contribute to the mechanical force between the movable bridge 30 and the slider 20 during the displacement of the slider, the dimension of these ends 25 can therefore be reduced to the minimum, compatible with the molding requirements or machining for industrial production and compatible with standard requirements (typically a thickness of the ends 25 of the order of 0.5 mm is sufficient). This therefore has the advantage of reducing overall the dimensions of the contact pole and therefore optimize the dimensions of the switch device.
  • the contact pressure spring 15 bears directly on the movable bridge 30 (via the lower face 31) so as to provide a sufficient contact force between the fixed contacts 42 and the movable contacts 41 in the working position.
  • the latching means therefore do not participate in the pressure force of the contacts, so that wear, linked to a long period of use of the device and likely to generate a certain clearance in these latching means does not will not affect the quality of the contact pressure.
  • the section of the contact pressure spring 15 is as large as possible and that the spring 15 is of cylindrical shape rather than conical shape.
  • the first end 16 of the spring 15 is held in position by flanges 28 arranged on each lateral end 25 of the slide 20, as shown in FIG. 5.
  • flanges 28 are as thin as possible so as to allow a circular section important to the spring 15, thus allowing a cylindrical shape of the contact pressure spring 15, without however penalizing the overall dimensions of the slide.
  • the appendages 22 of the slide 20 simply ensure the centering of the first end 16 of the spring 15 relative to the movable bridge 30 because the first end 16 is held against the external walls 27 of these appendices 22.
  • the latching means and the retaining means present on the slide 20 have the following important characteristic: they are arranged so that, independently of the action of the spring 15, the movable bridge 30 can have a play between the external pins 34 and the retaining face 26. This play is made substantially along the longitudinal axis X of the slide 20. It allows, in the working position, that the spring 15 can exert sufficient pressure on the movable bridge 30 in order to press simultaneously and homogeneously the two movable contacts 41 of the movable bridge 30 on the two fixed contacts 42 corresponding. Indeed, if the alignment or if the thickness of the fixed contacts 42 or of the movable contacts 41 was not perfectly identical, a rigid assembly of the movable bridge 30 with the slide 20 would cause the two pairs of contacts to open or close.

Landscapes

  • Slide Switches (AREA)
  • Breakers (AREA)
  • Contacts (AREA)

Abstract

The invention concerns an interrupting device for a contact pole in a switching apparatus consisting of a mobile contact-support (10) comprising a cylindrical contact pressure spring (15), a slide (20) mobile along an axis X and a mobile bridge (30) supporting two mobile contacts (41). The mobile bridge (30) has a central opening (33) wherein are inserted two protuberances (22) belonging to the slide (20) and provided with an outer pin (34) for locking the slide (30) on the mobile bridge (30). One end (16) of the spring (15), pressing on the mobile bridge (30), is maintained in position by an edge (28) provided on the lateral ends (25) of the slide (20) and is centred by the protuberances (22) of the slide (20).

Description

Dispositif de coupure d'un appareil interrupteur Switching device of a switching device
La présente invention concerne un dispositif de coupure d'un pôle de contact pour un appareil électrique interrupteur du type disjoncteur, contacteur ou contacteur- disjoncteur, comprenant un porte contact mobile qui possède un coulisseau encliqueté dans un pont mobile qui supporte des contacts mobiles. L'invention concerne également un appareil électrique muni d'au moins un tel dispositif de coupure.The present invention relates to a device for breaking a contact pole for an electrical circuit breaker, contactor or contactor-circuit breaker type device, comprising a movable contact carrier which has a slide engaged in a movable bridge which supports movable contacts. The invention also relates to an electrical appliance provided with at least one such cut-off device.
Dans un tel appareil électrique, le dispositif de coupure d'un pôle de contact comprend un porte contact mobile constitué généralement d'un coulisseau mobile suivant un axe entre une position repos et une position travail. Le coulisseau peut être commandé par des mécanismes manuels ou par des mécanismes de déclenchement magnétique et/ou thermique activés en cas de défaut électrique, par exemple. Son rôle est d'entraîner mécaniquement le déplacement d'un pont mobile supportant des contacts mobiles. Ce déplacement provoque la séparation entre les contacts mobiles et des contacts fixes, ce qui correspond à la position repos. En position travail, les contacts mobiles sont plaqués sur les contacts fixes habituellement grâce à un ressort de pression de contact.In such an electrical appliance, the device for breaking a contact pole comprises a movable contact carrier generally consisting of a slide movable along an axis between a rest position and a work position. The slider can be controlled by manual mechanisms or by magnetic and / or thermal trigger mechanisms activated in the event of an electrical fault, for example. Its role is to mechanically drive the movement of a movable bridge supporting movable contacts. This movement causes the separation between the movable contacts and the fixed contacts, which corresponds to the rest position. In the working position, the movable contacts are pressed against the fixed contacts, usually thanks to a contact pressure spring.
Dans le document DE19818058, il est décrit un pôle de contact d'un appareil interrupteur comprenant un coulisseau dans lequel un pont mobile de contact est maintenu dans une ouverture du coulisseau à l'aide d'un ressort de contact.In the document DE19818058, there is described a contact pole of a switching device comprising a slide in which a movable contact bridge is held in an opening of the slide using a contact spring.
Cependant, le coulisseau ne prévoit pas de moyens particuliers pour permettre son assemblage avec le pont mobile, sans l'aide du ressort de contact.However, the slide does not provide any particular means to allow its assembly with the movable bridge, without using the contact spring.
Par ailleurs, dans le document US4154996 qui concerne un appareil de type détecteur mécanique ou fin de course, un pont mobile est encliqueté dans un piston (ou coulisseau) par une ouverture centrale du pont mobile. Cependant, la pression de contact des contacts du pont mobile sur les contacts fixes n'est transmise uniquement que par cet encliquetage, ce qui rend cette solution inadaptée à un appareil interrupteur du type disjoncteur, contacteur ou contacteur-disjoncteur, dans lequel les courants électriques circulant entre les contacts sont susceptibles d'être beaucoup plus importants que dans un détecteur. En effet, si l'encliquetage présente un certain jeu d'usure au bout d'une période d'utilisation, il risque d'y avoir, durant l'ouverture ou la fermeture des contacts, un passage où le contact électrique se fera sans réelle pression sur les contacts, ce qui est rédhibitoire pour une utilisation décrite dans la présente invention, notamment à cause des risques de soudure. L'invention a pour but de proposer une solution simple d'assemblage entre le coulisseau et le pont mobile, ainsi que de réduire l'encombrement d'un tel dispositif de coupure tout en conservant une dimension du ressort de pression de contact la plus large possible pour garantir une bonne efficacité du ressort. L'assemblage doit également garder une souplesse suffisante pour obtenir une pression de contact correctement répartie entre les contacts mobiles.Furthermore, in document US4154996 which relates to a device of the mechanical detector or limit switch type, a movable bridge is snapped into a piston (or slide) by a central opening of the movable bridge. However, the contact pressure of the contacts of the movable bridge on the fixed contacts is transmitted only by this snap-fastening, which makes this solution unsuitable for a circuit breaker, contactor or contactor-circuit breaker type device, in which the electric currents flowing between contacts are likely to be much larger than in a detector. Indeed, if the snap has a certain wear clearance after a period of use, there may be, during the opening or closing of the contacts, a passage where the electrical contact will be made without real pressure on the contacts, which is prohibitive for a use described in the present invention, in particular because of the risks of welding. The object of the invention is to propose a simple assembly solution between the slide and the movable bridge, as well as to reduce the size of such a cut-off device while retaining a dimension of the widest contact pressure spring. possible to guarantee good efficiency of the spring. The assembly must also keep sufficient flexibility to obtain a contact pressure correctly distributed between the movable contacts.
Pour cela, l'invention présente un dispositif de coupure pour appareil interrupteur composé d'un porte contact mobile comprenant un ressort de pression de contact, un coulisseau mobile suivant un axe longitudinal entre une position travail et une position repos, et un pont mobile doté d'une face inférieure et d'une face supérieure supportant deux contacts mobiles. Le dispositif de coupure se caractérise par le fait que le pont mobile présente une ouverture centrale dans laquelle est inséré au moins un appendice appartenant au coulisseau et comportant des moyens d'encliquetage permettant au coulisseau de s'assembler au pont mobile et par le fait que le ressort de pression de contact possède une première extrémité qui appuie sur la face inférieure du pont mobile.For this, the invention presents a cut-off device for a switching device composed of a movable contact holder comprising a contact pressure spring, a slide movable along a longitudinal axis between a working position and a rest position, and a movable bridge provided a lower face and an upper face supporting two movable contacts. The breaking device is characterized by the fact that the movable bridge has a central opening in which is inserted at least one appendage belonging to the slider and comprising latching means allowing the slider to assemble to the movable bridge and by the fact that the contact pressure spring has a first end which presses on the underside of the movable bridge.
Le coulisseau comporte des moyens de butée pour le pont mobile qui sont constitués d'une part par une face de retenue du coulisseau coopérant avec la face supérieure du pont mobile et d'autre part par des extrémités latérales sur le coulisseau encadrant des faces latérales du pont mobile. Les moyens d'encliquetage et les moyens de butée sont agencés pour laisser un jeu suffisant au pont mobile selon une direction sensiblement parallèle à l'axe longitudinal du coulisseau, de façon à ce que, en position travail, le ressort de pression de contact puisse exercer une pression sur le pont mobile pour pouvoir plaquer efficacement les contacts mobiles du pont mobile sur des contacts fixes correspondants de l'appareil interrupteur.The slide comprises abutment means for the movable bridge which are constituted on the one hand by a retaining face of the slide cooperating with the upper face of the movable bridge and on the other hand by lateral ends on the slide framing lateral faces of the movable bridge. The latching means and the stop means are arranged to leave sufficient clearance for the movable bridge in a direction substantially parallel to the longitudinal axis of the slide, so that, in the working position, the contact pressure spring can exert pressure on the movable bridge in order to be able to effectively press the movable contacts of the movable bridge onto corresponding fixed contacts of the switching device.
D'autres caractéristiques et avantages vont apparaître dans la description détaillée qui suit en se référant à un mode de réalisation donné à titre d'exemple et représenté par les dessins annexés sur lesquels :Other characteristics and advantages will appear in the detailed description which follows, with reference to an embodiment given by way of example and represented by the appended drawings in which:
- la figure 1 montre en vue de face un porte contact mobile avec un coulisseau, un pont mobile supportant deux contacts mobiles et un ressort de pression de contact, - les figures 2 et 3 représentent le même porte contact mobile respectivement en vue de côté et en vue de dessous,FIG. 1 shows a front view of a movable contact carrier with a slide, a movable bridge supporting two movable contacts and a contact pressure spring, FIGS. 2 and 3 show the same movable contact carrier respectively in side view and in bottom view,
- les figures 4 et 5 montrent le porte contact mobile dans des vues en coupe respectivement selon un plan Y-Y et selon un plan X-X, - la figure 6 représente, en position travail, un dispositif de coupure d'un pôle de contact conforme à l'invention.- Figures 4 and 5 show the movable contact carrier in sectional views respectively along a plane YY and along a plane XX, - Figure 6 shows, in the working position, a device for cutting a contact pole according to l 'invention.
En référence aux figures 1 et 4, le dispositif de coupure d'un pôle de contact décrit dans la présente invention comprend un porte contact mobile 10 constitué de : « un coulisseau 20 déplaçable entre une position travail et une position repos suivant un axe longitudinal X,With reference to FIGS. 1 and 4, the device for breaking a contact pole described in the present invention comprises a movable contact carrier 10 consisting of: “a slide 20 movable between a working position and a rest position along a longitudinal axis X ,
• un pont mobile 30 agencé suivant un axe transversal W sensiblement perpendiculaire à l'axe X et comprenant une face inférieure 31 , une face supérieure 32 et des faces latérales 35, • un ressort 15 de pression de contact de forme sensiblement cylindrique dont une première extrémité 16 appuie sur la face inférieure 31 du pont mobile 30 et dont une deuxième extrémité 17 opposée appuie sur un socle 12 de l'appareil interrupteur,• a movable bridge 30 arranged along a transverse axis W substantially perpendicular to the axis X and comprising a lower face 31, an upper face 32 and lateral faces 35, • a contact pressure spring 15 of substantially cylindrical shape, a first of which end 16 presses on the underside 31 of the movable bridge 30 and of which a second opposite end 17 presses on a base 12 of the switch device,
• deux contacts mobiles 41 montés sur la face supérieure 32 du pont mobile 30, de chaque côté du coulisseau 20.• two movable contacts 41 mounted on the upper face 32 of the movable bridge 30, on each side of the slide 20.
En position travail, les contacts mobiles 41 sont plaqués contre des contacts fixes correspondants 42 de l'appareil interrupteur directement grâce au ressort 15 de pression de contact. En position repos, les contacts mobiles 41 sont séparés des contacts fixes 42 par le coulisseau 20 qui est mécaniquement solidaire du pont mobile 30.In the working position, the movable contacts 41 are pressed against corresponding fixed contacts 42 of the switching device directly thanks to the contact pressure spring 15. In the rest position, the movable contacts 41 are separated from the fixed contacts 42 by the slide 20 which is mechanically secured to the movable bridge 30.
Dans le mode de réalisation présenté, le coulisseau 20 comporte une partie basse 21 dans laquelle sont situés les différents éléments permettant l'assemblage du pont mobile 30 avec le coulisseau 20. La partie basse 21 comporte au moins un appendice 22 muni de moyens d'encliquetage pour assembler le coulisseau avec le pont mobile. Dans le mode de réalisation préféré, ces moyens d'encliquetage sont constitués par au moins un ergot extérieur 34.In the embodiment presented, the slide 20 comprises a lower part 21 in which the different elements are located allowing the assembly of the movable bridge 30 with the slide 20. The lower part 21 comprises at least one appendage 22 provided with means of snap-in to assemble the slide with the movable bridge. In the preferred embodiment, these latching means consist of at least one external lug 34.
En référence aux figures 1 et 4, la partie basse 21 du coulisseau 20 comprend deux appendices 22 dont les faces externes 27 opposées sont munies chacune d'un ergot extérieur 34. Ces faces externes 27 présentent un arrondi dans leur partie inférieure. Les deux appendices 22 sont séparés par un évidement central 23 réalisé dans le coulisseau 20. Le coulisseau est de préférence fabriqué à partir d'un matériau plastique isolant de manière à ce que l'évidement central 23 soit suffisant pour donner une élasticité aux ergots extérieurs 34 des appendices 22 selon une direction sensiblement perpendiculaire à l'axe X.With reference to FIGS. 1 and 4, the lower part 21 of the slide 20 comprises two appendages 22, the opposite external faces 27 of which are each provided with a external lug 34. These external faces 27 have a rounded in their lower part. The two appendages 22 are separated by a central recess 23 made in the slide 20. The slide is preferably made from an insulating plastic material so that the central recess 23 is sufficient to give elasticity to the external pins 34 of the appendages 22 in a direction substantially perpendicular to the axis X.
Le pont mobile 30 comporte une ouverture centrale 33, par exemple de forme rectangulaire. Pour réaliser l'assemblage du pont mobile 30 avec le coulisseau 20, les appendices 22 du coulisseau sont insérés dans l'ouverture centrale 33 du pont mobile 30. Durant cette insertion, les arrondis des parois externes 27 des appendices 22 viennent buter contre les bords de l'ouverture centrale 33 ce qui force un rapprochement des ergots extérieurs 34 l'un vers l'autre, jusqu'à ce que ceux-ci arrivent sous la face inférieure 31 du pont mobile 30. L'élasticité des deux appendices 22 les remet alors en position initiale et les ergots extérieurs 34 prennent appui contre la face inférieure 31, rendant ainsi solidaires le pont mobile 30 et le coulisseau 20. L'opération d'assemblage est donc très simple et ne nécessite pas de pièce supplémentaire, rendant sa réalisation rapide et économique.The movable bridge 30 has a central opening 33, for example of rectangular shape. To assemble the movable bridge 30 with the slide 20, the appendages 22 of the slide are inserted into the central opening 33 of the movable bridge 30. During this insertion, the rounded edges of the external walls 27 of the appendages 22 abut against the edges from the central opening 33 which forces the outer lugs 34 to move towards one another, until they come under the underside 31 of the movable bridge 30. The elasticity of the two appendages 22 then returns to the initial position and the external pins 34 bear against the lower face 31, thus making the movable bridge 30 and the slide 20 integral. The assembly operation is therefore very simple and does not require any additional part, making it quick and economical.
Le coulisseau comporte également des moyens de butée pour assurer le maintien du pont mobile 30. En référence à la figure 5, ces moyens de butée sont constitués d'une part par une face de retenue 26 interne aménagée dans le coulisseau 20 et qui coopère avec la face supérieure 32 du pont mobile 30 de façon à ce que, lors du déplacement de la position travail vers la position repos, la face de retenue 26 entraîne le pont mobile 30 selon l'axe longitudinal X. Les moyens de butée comprennent également des extrémités latérales 25 situées sur la partie basse 21 du coulisseau et qui encadrent les faces latérales 35 du pont mobile 30 pour maintenir celui-ci en position suivant un axe transversal Z (voir figures 3 et 5).The slide also includes stop means for maintaining the movable bridge 30. With reference to FIG. 5, these stop means consist firstly of an internal retaining face 26 arranged in the slide 20 and which cooperates with the upper face 32 of the movable bridge 30 so that, when moving from the working position to the rest position, the retaining face 26 drives the mobile bridge 30 along the longitudinal axis X. The stop means also include lateral ends 25 situated on the lower part 21 of the slide and which frame the lateral faces 35 of the movable bridge 30 to maintain the latter in position along a transverse axis Z (see FIGS. 3 and 5).
En référence à la figure 3, la partie basse 21 du coulisseau 20 comporte quatre extrémités latérales 25 : une extrémité pour chaque côté selon l'axe transversal Z, chaque extrémité d'un même côté étant séparée en deux à cause de l'évidement central 23. Comme les extrémités latérales 25 ne contribuent pas à l'effort mécanique entre le pont mobile 30 et le coulisseau 20 lors du déplacement du coulisseau, la dimension de ces extrémités 25 peut donc être réduite au minimum, compatible avec les exigences de moulage ou d'usinage pour une obtention industrielle et compatible avec les exigences normatives (typiquement une épaisseur des extrémités 25 de l'ordre de 0,5mm est suffisante). Ceci présente donc l'avantage de diminuer globalement les dimensions du pôle de contact et donc d'optimiser les dimensions de l'appareil interrupteur.With reference to FIG. 3, the lower part 21 of the slide 20 has four lateral ends 25: one end for each side along the transverse axis Z, each end on the same side being split in two because of the central recess 23. As the lateral ends 25 do not contribute to the mechanical force between the movable bridge 30 and the slider 20 during the displacement of the slider, the dimension of these ends 25 can therefore be reduced to the minimum, compatible with the molding requirements or machining for industrial production and compatible with standard requirements (typically a thickness of the ends 25 of the order of 0.5 mm is sufficient). This therefore has the advantage of reducing overall the dimensions of the contact pole and therefore optimize the dimensions of the switch device.
Le ressort 15 de pression de contact appuie directement sur le pont mobile 30 (via la face inférieure 31) de façon à procurer une force de contact suffisante entre les contacts fixes 42 et les contacts mobiles 41 en position travail. Les moyens d'encliquetage ne participent donc pas à l'effort de pression des contacts, de sorte qu'une usure, liée à une longue période d'utilisation du dispositif et susceptible de générer un certain jeu dans ces moyens d'encliquetage n'affectera pas la qualité de la pression de contact. Pour une meilleure résistance et une meilleure efficacité du ressort 15, il est avantageux que la section du ressort 15 de pression de contact soit la plus grande possible et que le ressort 15 soit de forme cylindrique plutôt que de forme conique. Pour cela, la première extrémité 16 du ressort 15 est maintenue en position par des rebords 28 aménagés sur chaque extrémité latérale 25 du coulisseau 20, comme indiqué dans la figure 5. Ces rebords 28 sont le plus mince possible de façon à autoriser une section circulaire importante au ressort 15, autorisant ainsi une forme cylindrique du ressort 15 de pression de contact, sans toutefois pénaliser les dimensions globales du coulisseau. De plus, pour une meilleure stabilité du ressort 15, les appendices 22 du coulisseau 20 assurent de façon simple le centrage de la première extrémité 16 du ressort 15 par rapport au pont mobile 30 car la première extrémité 16 est maintenue contre les parois externes 27 de ces appendices 22.The contact pressure spring 15 bears directly on the movable bridge 30 (via the lower face 31) so as to provide a sufficient contact force between the fixed contacts 42 and the movable contacts 41 in the working position. The latching means therefore do not participate in the pressure force of the contacts, so that wear, linked to a long period of use of the device and likely to generate a certain clearance in these latching means does not will not affect the quality of the contact pressure. For a better resistance and a better efficiency of the spring 15, it is advantageous that the section of the contact pressure spring 15 is as large as possible and that the spring 15 is of cylindrical shape rather than conical shape. For this, the first end 16 of the spring 15 is held in position by flanges 28 arranged on each lateral end 25 of the slide 20, as shown in FIG. 5. These flanges 28 are as thin as possible so as to allow a circular section important to the spring 15, thus allowing a cylindrical shape of the contact pressure spring 15, without however penalizing the overall dimensions of the slide. In addition, for better stability of the spring 15, the appendages 22 of the slide 20 simply ensure the centering of the first end 16 of the spring 15 relative to the movable bridge 30 because the first end 16 is held against the external walls 27 of these appendices 22.
Les moyens d'encliquetage et les moyens de retenue présents sur le coulisseau 20 présentent la caractéristique importante suivante : ils sont agencés pour que, indépendamment de l'action du ressort 15, le pont mobile 30 puisse avoir un jeu entre les ergots extérieurs 34 et la face de retenue 26. Ce jeu se fait sensiblement suivant l'axe longitudinal X du coulisseau 20. Il permet, en position travail, que le ressort 15 puisse exercer une pression suffisante sur le pont mobile 30 afin de plaquer simultanément et de façon homogène les deux contacts mobiles 41 du pont mobile 30 sur les deux contacts fixes 42 correspondants. En effet, si l'alignement ou si l'épaisseur des contacts fixes 42 ou des contacts mobiles 41 n'était pas parfaitement identique, un assemblage rigide du pont mobile 30 avec le coulisseau 20 entraînerait une ouverture ou une fermeture des deux paires de contacts 41,42 qui ne serait ni parfaitement simultanée, ni faite avec la même force, pouvant alors entraîner soit un le pont mobile 30 peut donc s'incliner légèrement d'un côté ou de l'autre par rapport à son axe transversal W de manière à être capable de rattraper l'imperfection des contacts et à assurer une fermeture des contacts avec la même pression et une ouverture des contacts simultanée. On évite ainsi le risque d'échauffement, de soudure ou de détérioration des contacts qui pourrait survenir dans le temps, après une utilisation intensive du dispositif de coupure.The latching means and the retaining means present on the slide 20 have the following important characteristic: they are arranged so that, independently of the action of the spring 15, the movable bridge 30 can have a play between the external pins 34 and the retaining face 26. This play is made substantially along the longitudinal axis X of the slide 20. It allows, in the working position, that the spring 15 can exert sufficient pressure on the movable bridge 30 in order to press simultaneously and homogeneously the two movable contacts 41 of the movable bridge 30 on the two fixed contacts 42 corresponding. Indeed, if the alignment or if the thickness of the fixed contacts 42 or of the movable contacts 41 was not perfectly identical, a rigid assembly of the movable bridge 30 with the slide 20 would cause the two pairs of contacts to open or close. 41,42 which is neither perfectly simultaneous nor made with the same force, which could then result in either the movable bridge 30 can therefore tilt slightly on one side or the other with respect to its transverse axis W so as to be able to catch up with the imperfection of the contacts and to ensure that the contacts are closed with the same pressure and simultaneous opening of contacts. This avoids the risk of overheating, soldering or deterioration of the contacts which could occur over time, after intensive use of the breaking device.
Il est bien entendu que l'on peut, sans sortir du cadre de l'invention, imaginer d'autres variantes et perfectionnements de détail et de même envisager l'emploi de moyens équivalents. It is understood that one can, without departing from the scope of the invention, imagine other variants and refinements of detail and even consider the use of equivalent means.

Claims

REVENDICATIONS
1. Dispositif de coupure d'un pôle de contact dans un appareil électrique interrupteur composé d'un porte contact mobile (10) comprenant un ressort (15) de pression de contact, un coulisseau (20) mobile suivant un axe longitudinal (X) entre une position travail et une position repos, et un pont mobile (30) doté d'une face inférieure (31) opposée à une face supérieure (32) laquelle supporte deux contacts mobiles (41), caractérisé par le fait que le pont mobile (30) présente une ouverture centrale (33) dans laquelle est inséré au moins un appendice (22) du coulisseau (20) comportant des moyens d'encliquetage qui permettent au coulisseau (20) de s'assembler au pont mobile (30) et par le fait que le ressort (15) de pression de contact possède une première extrémité (16) qui appuie sur la face inférieure (31) du pont mobile (30).1. Device for switching off a contact pole in an electrical switch device composed of a movable contact carrier (10) comprising a contact pressure spring (15), a slide (20) movable along a longitudinal axis (X) between a working position and a rest position, and a movable bridge (30) provided with a lower face (31) opposite to an upper face (32) which supports two movable contacts (41), characterized in that the movable bridge (30) has a central opening (33) into which is inserted at least one appendage (22) of the slide (20) comprising latching means which allow the slide (20) to be assembled to the movable bridge (30) and by the fact that the contact pressure spring (15) has a first end (16) which bears on the underside (31) of the movable bridge (30).
2. Dispositif de coupure selon la revendication 1 caractérisé par le fait que les moyens d'encliquetage sont constitués par au moins un ergot extérieur (34) situé sur au moins un appendice (22) du coulisseau (20) et prenant appui sur la face inférieure (31) du pont mobile (30) lorsque le coulisseau (20) est assemblé au pont mobile (30).2. Cutting device according to claim 1 characterized in that the latching means consist of at least one external lug (34) located on at least one appendage (22) of the slide (20) and bearing on the face lower (31) of the movable bridge (30) when the slide (20) is assembled to the movable bridge (30).
3. Dispositif de coupure selon la revendication 2 caractérisé par le fait que le coulisseau (20) comporte deux appendices (22) comprenant chacun un ergot extérieur (34).3. Cutting device according to claim 2 characterized in that the slide (20) has two appendages (22) each comprising an outer lug (34).
4. Dispositif de coupure selon la revendication 3 caractérisé par le fait que les deux appendices (22) du coulisseau (20) sont séparés par un évidement central (23) dans le coulisseau, suffisant pour donner une élasticité aux ergots extérieurs (34) des appendices (22) selon une direction sensiblement perpendiculaire à l'axe longitudinal (X) du coulisseau (20).4. Cutting device according to claim 3 characterized in that the two appendages (22) of the slide (20) are separated by a central recess (23) in the slide, sufficient to give elasticity to the external pins (34) of the appendages (22) in a direction substantially perpendicular to the longitudinal axis (X) of the slide (20).
5. Dispositif de coupure selon la revendication 3 caractérisé par le fait que le coulisseau (20) comporte des moyens de butée pour le pont mobile (30) qui sont constitués d'une part par une face de retenue (26) du coulisseau (20) coopérant avec la face supérieure (32) du pont mobile (30) et d'autre part par des extrémités latérales (25) sur le coulisseau (20) encadrant des faces latérales (35) du pont mobile (30). 5. Cutting device according to claim 3 characterized in that the slide (20) comprises stop means for the movable bridge (30) which are formed on the one hand by a retaining face (26) of the slide (20 ) cooperating with the upper face (32) of the movable bridge (30) and on the other hand by lateral ends (25) on the slide (20) framing lateral faces (35) of the movable bridge (30).
6. Dispositif de coupure selon la revendication 3 caractérisé par le fait que le ressort (15) de pression de contact est de forme sensiblement cylindrique et possède, à l'opposé de la première extrémité (16), une seconde extrémité (17) qui repose sur un socle (12) de l'appareil interrupteur.6. Cutting device according to claim 3 characterized in that the contact pressure spring (15) is of substantially cylindrical shape and has, opposite the first end (16), a second end (17) which rests on a base (12) of the switch device.
7. Dispositif de coupure selon la revendication 6 caractérisé par le fait que la première extrémité (16) du ressort (15) de pression de contact est maintenue en position par un rebord (28) aménagé sur les extrémités latérales (25) du coulisseau (20)7. Cut-off device according to claim 6 characterized in that the first end (16) of the contact pressure spring (15) is held in position by a flange (28) arranged on the lateral ends (25) of the slide ( 20)
8. Dispositif de coupure selon la revendication 7 caractérisé par le fait que la première extrémité (16) du ressort (15) de pression de contact est centrée par les appendices (22) du coulisseau (20).8. Cutting device according to claim 7 characterized in that the first end (16) of the contact pressure spring (15) is centered by the appendages (22) of the slide (20).
9. Dispositif de coupure selon la revendication 5 caractérisé par le fait que les moyens d'encliquetage et les moyens de butée présents sur le coulisseau (20) sont agencés pour laisser au pont mobile (30) un jeu suffisant par rapport au coulisseau (20) de façon à ce que le ressort (15) de pression de contact puisse exercer une pression homogène et simultanée pour plaquer les deux contacts mobiles (41) du pont mobile (30) sur deux contacts fixes (42) correspondants de l'appareil interrupteur.9. Cutting device according to claim 5 characterized in that the latching means and the stop means present on the slide (20) are arranged to leave the movable bridge (30) sufficient play relative to the slide (20 ) so that the contact pressure spring (15) can exert a homogeneous and simultaneous pressure to press the two movable contacts (41) of the movable bridge (30) on two corresponding fixed contacts (42) of the switching device .
10. Appareil électrique interrupteur comprenant au moins un dispositif de coupure selon l'une des revendications précédentes. 10. An electrical switch device comprising at least one cut-off device according to one of the preceding claims.
EP01967447A 2000-09-08 2001-09-07 Interrupting device for switching apparatus Withdrawn EP1327253A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0011556 2000-09-08
FR0011556A FR2813988B1 (en) 2000-09-08 2000-09-08 SWITCHING DEVICE FOR A SWITCHING APPARATUS
PCT/FR2001/002779 WO2002021550A1 (en) 2000-09-08 2001-09-07 Interrupting device for switching apparatus

Publications (1)

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EP1327253A1 true EP1327253A1 (en) 2003-07-16

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EP01967447A Withdrawn EP1327253A1 (en) 2000-09-08 2001-09-07 Interrupting device for switching apparatus

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US (1) US6924449B2 (en)
EP (1) EP1327253A1 (en)
JP (1) JP2004508677A (en)
AU (1) AU2001287826A1 (en)
FR (1) FR2813988B1 (en)
WO (1) WO2002021550A1 (en)

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DE102008016036A1 (en) * 2008-03-28 2009-10-01 Abb Ag Installation switching device with a double break
FR2973559B1 (en) * 2011-03-31 2013-03-29 Schneider Electric Ind Sas MOBILE CONTACT BRIDGE
DE102012201966A1 (en) 2012-02-09 2013-08-14 Tyco Electronics Amp Gmbh Switching contact module with switching contact bridge and contact bridge holder
US9916952B2 (en) * 2015-06-12 2018-03-13 Te Connectivity Corporation Carrier sub-assembly for an electrical relay device
DE102015212817A1 (en) * 2015-07-08 2017-01-12 Te Connectivity Germany Gmbh Contact bridge arrangement for an electrical switching element
KR101758260B1 (en) * 2016-12-09 2017-07-14 동원산업 주식회사 Parking brake fixed lamp switch

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Publication number Publication date
FR2813988B1 (en) 2003-10-17
WO2002021550A1 (en) 2002-03-14
AU2001287826A1 (en) 2002-03-22
JP2004508677A (en) 2004-03-18
US20040031668A1 (en) 2004-02-19
FR2813988A1 (en) 2002-03-15
US6924449B2 (en) 2005-08-02

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