EP3082144A1 - Electrical switching device with two-track cam - Google Patents

Electrical switching device with two-track cam Download PDF

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Publication number
EP3082144A1
EP3082144A1 EP15290105.4A EP15290105A EP3082144A1 EP 3082144 A1 EP3082144 A1 EP 3082144A1 EP 15290105 A EP15290105 A EP 15290105A EP 3082144 A1 EP3082144 A1 EP 3082144A1
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EP
European Patent Office
Prior art keywords
arm
cam
track
sliding
pivot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15290105.4A
Other languages
German (de)
French (fr)
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EP3082144B1 (en
Inventor
Eric Durhône
Jérémy Garampon
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to EP15290105.4A priority Critical patent/EP3082144B1/en
Priority to CN201680021843.7A priority patent/CN107533932B/en
Priority to PCT/EP2016/054856 priority patent/WO2016165877A1/en
Publication of EP3082144A1 publication Critical patent/EP3082144A1/en
Application granted granted Critical
Publication of EP3082144B1 publication Critical patent/EP3082144B1/en
Priority to HRP20171782TT priority patent/HRP20171782T1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/42—Driving mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/42—Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H2033/028—Details the cooperating contacts being both actuated simultaneously in opposite directions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
    • H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
    • H01H33/74—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber wherein the break is in gas

Definitions

  • the present invention relates to an electric switching device with a dual-track cam according to the preamble of claim 1.
  • circuit-breaker or disconnector installations in particular at high voltage, for example as GIS-type ( g as i nsultated s witchgear) or AIS ( a ir i nsulated s witchgear) metal-wrapped substations, it is intended to be able to connect but above all to disconnect electrical connection elements, such as a dedicated male electrical connector to be inserted into or removed from a female electrical connector.
  • an electrical switching device adapted to connect or disconnect said connectors mechanically.
  • the curvilinear geometry (hook or "L" rounded) of the first track (9) is disposed on a major half of the cam (3) and whose first end (slide position in figure 1 ) is further from the pivot axis (2) than the second end (slide position in figure 3 ).
  • This track geometry makes it possible to accelerate withdrawal of the male connector (6) with respect to the female connector (7) during the intermediate disconnection mode ( figure 2 ). This acceleration makes it possible to reduce the duration of cut or blowing of the arc.
  • FR2817389A which had been filed on 30.11.2000 by a company now affiliated with the present applicant.
  • this publication presents by means of Figures 1 to 6 and their descriptions a switching device similar to Figures 1 to 3 previously described above.
  • the publication includes a figure 7 comprising a similar device, however, having a dual-track cam, both with a curvilinear geometry, instead of a single-track cam with curvilinear geometry.
  • An object of the present invention is to provide an effective electrical switching device allowing a speed of disconnection of the male and female connectors faster, in particular for a high voltage application such as a circuit breaker or disconnector under GIS metal envelope station.
  • a set of subclaims also has advantages of the invention.
  • the said device is further characterized in that the second track (11) comprises a linear track portion having a main axis (12) passing through the pivot point (2) of the cam.
  • the electric switching device with a bi-track cam according to figure 5 is here in closed connection mode analogously to the figure 1 that is, the male electrical connector (6) is inserted into the female electrical connector (7).
  • the second slider (10) is at one end of the second track (11) furthest from the pivot point (2).
  • the first slider (8) is also at one end of the first track (9) furthest from the pivot point (2).
  • the first track has a curved geometric profile (then linear) so that for a range of positions of the first slide on this profile in association with a range of positions of the second slider in the second track, a drive Linear of the second arm undergoes an acceleration which is here a considerable advantage also presented in figure 8 .
  • Figure 6 represents the electrical switching device according to figure 5 , however in intermediate disconnection mode, analogous to the intermediate disconnection mode of the figure 2 .
  • the male connector (6) disengages from the female connector (7) thereby creating an arc contact break that will commonly be blown by a neutral gas supply or SF6 during the subsequent disconnection.
  • the second slider (10) is at another end of the second track (11) closest to the pivot point (2).
  • the first slider (8) then traveled more than 30% on the first track (9) towards the other end of the first track (9) closest to the pivot point (2).
  • the driving force (Fd) parallel to the axis of the male connector (6) is ensured by the withdrawal of the female connector (7) further from the fixed base (1) relative to the figure 5 .
  • the resultant force (Fr) in the main direction - here also advantageously parallel to the axis of the male connector - of the first driving arm (4) on the cam (3) is thus equal to 100% of the force drive (Fd) parallel to the axis of the male connector.
  • the first arm is thus coupled to a mechanism for moving said arm in a linear direction identical to that of the axis of said first arm, free of rotation relative to the support base.
  • the first and second elongate arms form parallel movements along their axes for any position of their respective slider with one of the tracks of the cam. Even if this configuration of "parallel" transmission of effort is optimal because allows a complete transmission of said efforts, a rotation of the first arm can however be tolerated.
  • the first slider (8) slides in the track (9) whose curvilinear geometry hook-shaped or "L" rounded is adapted to minimize frictional forces of the slider with edges of said track.
  • the device according to the invention thus provides that the second track is a linear oblong opening.
  • the first and second tracks describe a form question mark (?) Whose lower point similar to the second track is however oblong. This geometry of the tracks thus makes it possible to provide an acceleration to the first slider (8) in order to more quickly remove the male connector (6) from the input guide of the female connector (7).
  • an inlet guide in the form of a nozzle (7 ') driven by the first arm (4) and the cam in the disconnection mode allows the male connector (6) of the female connector to be slidably withdrawn in the said nozzle ( 7), said nozzle (7 ') being movable relative to the support base (1).
  • Figure 7 represents the electrical switching device according to figure 5 or 6 , however in the final disconnect mode, analogous to the final disconnect mode of the figure 3 .
  • the male connector (6) is thus completely disengaged from the female connector (7).
  • the second slider (10) is again at the initial end of the second track (11) furthest from the pivot point (2).
  • the first slide (8) then traveled the entire first track (9) towards the other end of the first track (9) closest to the pivot point (2).
  • Figure 8 shows an example of a displacement speed diagram of the first and second arms of said device, to illustrate the advantageous effect of acceleration described above.
  • the curves represented are a value (%) of displacement (Di) as a function of a time unit (Tu) between 0 and 1.
  • a first curve (DS) thus indicates the constant speed of withdrawal of the first arm (4) ( when removing the input guide 7).
  • a second curve (SC) indicates the driving speed of the male connector (6) for a device according to one of the Figures 1 to 3 (or 4): we can see that in the time interval [0,2; 0.7], said withdrawal speed of the second arm or of the male connector (6) is equal (and opposite) to that of the withdrawal of the first arm (4).
  • a third curve (DC) indicates the driving speed of the male connector (6) for a device according to one of the Figures 5 to 7 it can be seen that in the interval (HS) of time [0.31; 0.46], said withdrawal speed of the second arm or the male connector (6) is increased (and opposite) to that (SC) of the withdrawal of the first arm (4), there is indeed an acceleration of a factor of 1.5 over this interval (HS) at high speed, which illustrates the effect desired by the device according to the invention, in order to make the disconnection faster and thus arc cutting more effective.

Landscapes

  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Transmission Devices (AREA)

Abstract

La présente invention décrit un dispositif de commutation électrique comprenant : - une embase de support (1) comprenant un axe de pivot (2) autour duquel pivote une came (3), - un premier bras (4) d'entrainement ayant une extrémité d'entrainement couplée à la came afin de la faire pivoter par rapport à l'embase autour de l'axe de pivot, - un deuxième bras (5) de commutation électrique par entrainement linéaire selon un axe du dit bras, - le dit deuxième bras ayant : a) une première extrémité munie d'un connecteur électrique mâle (6) dédié à être inséré dans ou retiré d'un connecteur électrique femelle (7) et ; b) une deuxième extrémité entrainée par pivot de la came au moyen d'un couplage par coulissement, le dit couplage comprenant un premier coulisseau (8) solidaire de la deuxième extrémité du deuxième bras et coulissant dans une première piste curviligne (9) de la came, - l'extrémité d'entrainement du premier bras d'entrainement de la came forme un moyen de couplage par coulissement, le dit couplage comprenant un deuxième coulisseau (10) solidaire de ladite extrémité du premier bras et coulissant dans une deuxième piste (11) de la came. Le dit dispositif se caractérise en ce que la deuxième piste (11) comprend une portion de piste linéaire ayant un axe principal (12) passant par le point de pivot de la came.The present invention describes an electrical switching device comprising: a support base (1) comprising a pivot axis (2) around which a cam (3) pivots, a first driving arm (4) having a driving end coupled to the cam to pivot it relative to the base around the pivot axis, a second arm (5) for electrical commutation by linear drive along an axis of said arm, - said second arm having: a) a first end provided with a male electrical connector (6) dedicated to be inserted into or removed from a female electrical connector (7) and; b) a second end driven by pivoting of the cam by means of a sliding coupling, said coupling comprising a first slide (8) secured to the second end of the second arm and sliding in a first curvilinear track (9) of the cam, the drive end of the first drive arm of the cam forms a sliding coupling means, said coupling comprising a second slide (10) secured to said end of the first arm and sliding in a second race (11). of the cam. Said device is characterized in that the second track (11) comprises a linear track portion having a main axis (12) passing through the pivot point of the cam.

Description

La présente invention concerne un dispositif de commutation électrique à came bi-piste selon le préambule de la revendication 1.The present invention relates to an electric switching device with a dual-track cam according to the preamble of claim 1.

Dans des installations de disjoncteur ou sectionneur, en particulier sous haute tension, par exemple comme des postes à enveloppe métallique de type GIS (gas insultated switchgear) ou AIS (air insulated switchgear), il est visé de pouvoir connecter, mais surtout de déconnecter des éléments de connexion électrique, tel qu'un connecteur électrique mâle dédié à être inséré dans ou retiré d'un connecteur électrique femelle. A ce titre, il est prévu un dispositif de commutation électrique apte à connecter ou déconnecter mécaniquement les dits connecteurs.In circuit-breaker or disconnector installations, in particular at high voltage, for example as GIS-type ( g as i nsultated s witchgear) or AIS ( a ir i nsulated s witchgear) metal-wrapped substations, it is intended to be able to connect but above all to disconnect electrical connection elements, such as a dedicated male electrical connector to be inserted into or removed from a female electrical connector. As such, there is provided an electrical switching device adapted to connect or disconnect said connectors mechanically.

Particulièrement en mode de déconnexion, il est requis d'atteindre une ouverture rapide et fiable entre le connecteur mâle et le connecteur femelle. A ce titre, un exemple de dispositif connu de commutation est donné au travers des figures 1, 2 et 3.

  • Figure 1 : dispositif de commutation électrique à came mono-piste en mode de connexion fermée,
  • Figure 2 : dispositif de commutation électrique à came mono-piste en mode de déconnexion intermédiaire,
  • Figure 3 : dispositif de commutation électrique à came mono-piste en mode de déconnexion finale.
  • Figure 1 présente ainsi un dispositif de commutation électrique comprenant :
    • une embase de support (1) comprenant un axe de pivot (2) autour duquel pivote une came (3),
    • un premier bras (4) d'entrainement ayant une extrémité d'entrainement couplée à la came afin de la faire pivoter par rapport à l'embase autour de l'axe de pivot,
    • un deuxième bras (5) de commutation électrique par entrainement linéaire selon un axe du dit bras,
    • le dit deuxième bras ayant :
      1. a) une première extrémité munie d'un connecteur électrique mâle (6) dédié à être inséré dans ou retiré d'un connecteur électrique femelle (7) et ;
      2. b) une deuxième extrémité entrainée par pivot de la came au moyen d'un couplage par coulissement, le dit couplage comprenant un premier coulisseau (8) solidaire de la deuxième extrémité du deuxième bras et coulissant dans une première piste curviligne (9) de la came,
    • l'extrémité d'entrainement du premier bras d'entrainement de la came est formée par un moyen de couplage rotatif ponctuel (3') distinct de l'axe de pivot (2) afin de pouvoir exercer un moment (Mo) sur ladite extrémité et par conséquent de faire pivoter la came.
    Ce dispositif de commutation électrique à came mono-piste est ici en mode de connexion fermée, c'est-à-dire que le connecteur électrique mâle (6) est inséré dans le connecteur électrique femelle (7). En d'autres termes, le connecteur femelle (7) est en position la plus rapprochée de l'embase (1). Sachant que ce guide d'entrée est couplé à l'autre extrémité du premier bras d'entrainement (4) de la came, le moyen de couplage rotatif ponctuel (3') est localisé loin du dit guide d'entrée ou du connecteur femelle (7), alors que inversement le premier coulisseau (8) est localisé au plus près du dit guide d'entrée ou du connecteur femelle (7). Par conséquent, le connecteur mâle (6) couplé au deuxième bras (5) lui-même couplé au premier coulisseau (8) est en position la plus enfoncée dans le dit guide d'entrée ou du connecteur femelle (7). Le dit premier coulisseau (8) est ainsi en position initiale sur une première extrémité de la piste curviligne (9).
  • Figure 2 présente selon figure 1 le même dispositif de commutation électrique à came mono-piste, toutefois en mode de déconnexion intermédiaire, c'est-à-dire lorsque le moment (Mo) exercé par l'extrémité d'entrainement du premier bras d'entrainement (4) de la came (3) se trouve dans un intervalle de valeurs maximales et permet ainsi à la came de pivoter sous un couple élevé d'entrainement, alors que l'effort d'entrainement (Fd) parallèle à l'axe du connecteur mâle est assuré par le retrait du connecteur femelle (7) plus loin de l'embase fixe (1) par rapport à la figure 1. L'effort résultant (Fr) selon la direction principale du premier bras d'entrainement (4) sur la came (3) est amoindri à environ 15% de l'effort d'entrainement (Fd) - (Fr = 85% x Fd) - parallèle à l'axe du connecteur mâle. Par soucis de clarté dans le présent document, les efforts de frictions ne sont pas considérés. Dans ce mode de déconnexion intermédiaire, il est aussi prévu que le connecteur mâle (6) se désolidarise du connecteur femelle (7) créant ainsi une rupture de contact sous arc électrique qui sera communément soufflé par une arrivée de gaz neutre ou du SF6 pendant la suite de la déconnexion. Egalement, le premier coulisseau (8) glisse dans la piste (9) dont la géométrie curviligne en forme de crochet ou « L » arrondi est adaptée pour minimiser des efforts de frictions du coulisseau avec des bords de ladite piste.
  • Figure 3 présente selon figure 2 le même dispositif de commutation électrique à came mono-piste, toutefois en mode de déconnexion finale pour une séparation mécanique et électrique totale des connecteurs mâle et femelle (6, 7). Le moment (Mo) exercé par l'extrémité d'entrainement du premier bras d'entrainement (4) de la came (3) revient ainsi dans un intervalle de valeurs minimales. De même, le premier coulisseau (8) atteint sa position finale à une seconde extrémité de la piste curviligne (9).
Especially in disconnect mode, it is required to achieve a fast and reliable opening between the male connector and the female connector. As such, an example of a known switching device is given through Figures 1, 2 and 3 .
  • Figure 1 : single-track cam electric switching device in closed connection mode,
  • Figure 2 : single-track cam electric switching device in intermediate disconnection mode,
  • Figure 3 : single-track cam electric switching device in final disconnection mode.
  • Figure 1 thus presents an electrical switching device comprising:
    • a support base (1) comprising a pivot axis (2) around which a cam (3) pivots,
    • a first drive arm (4) having a drive end coupled to the cam for pivoting relative to the hub about the pivot axis,
    • a second arm (5) for electrical commutation by linear drive along an axis of said arm,
    • said second arm having:
      1. a) a first end provided with a male electrical connector (6) dedicated to be inserted into or removed from a female electrical connector (7) and;
      2. b) a second end driven by pivoting of the cam by means of a sliding coupling, said coupling comprising a first slide (8) secured to the second end of the second arm and sliding in a first curvilinear track (9) of the cam,
    • the driving end of the first drive arm of the cam is formed by a spot rotating coupling means (3 ') distinct from the pivot axis (2) so as to be able to exert a moment (MB) on said end and therefore to rotate the cam.
    This electric single-track cam switching device is here in closed connection mode, that is to say that the male electrical connector (6) is inserted into the female electrical connector (7). In other words, the female connector (7) is in the position closest to the base (1). Knowing that this input guide is coupled to the other end of the first drive arm (4) of the cam, the one-off rotational coupling means (3 ') is located far from said input guide or the female connector (7), while inversely the first slider (8) is located closer to said input guide or the female connector (7). Therefore, the male connector (6) coupled to the second arm (5) itself coupled to the first slider (8) is in the most recessed position in said input guide or the female connector (7). Said first slider (8) is thus in initial position on a first end of the curvilinear track (9).
  • Figure 2 present according to figure 1 the same single-track cam electrical switching device, however in intermediate disconnection mode, that is to say when the moment (Mo) exerted by the driving end of the first driving arm (4) of the cam (3) is in a range of maximum values and thus allows the cam to rotate under a high torque drive, while the drive force (Fd) parallel to the axis of the male connector is ensured by removing the female connector (7) further from the fixed base (1) relative to the figure 1 . The resulting force (Fr) in the main direction of the first driving arm (4) on the cam (3) is reduced to about 15% of the training effort (Fd) - (Fr = 85% x Fd ) - parallel to the axis of the male connector. For the sake of clarity in this document, friction efforts are not considered. In this intermediate disconnection mode, it is also provided that the male connector (6) disengages from the female connector (7) thereby creating an arc-contact break that will be commonly blown by a neutral gas inlet or SF6 during the following the disconnection. Also, the first slider (8) slides in the track (9) whose curvilinear geometry hook-shaped or "L" rounded is adapted to minimize frictional forces of the slider with edges of said track.
  • Figure 3 present according to figure 2 the same single-track cam electrical switching device, however in final disconnection mode for a total mechanical and electrical separation of the male and female connectors (6, 7). The moment (Mo) exerted by the training end of the first arm the drive (4) of the cam (3) thus returns in a range of minimum values. Similarly, the first slider (8) reaches its final position at a second end of the curvilinear track (9).

En considérant les figures 1 à 3 dans leur ordre inverse, il serait alors facile de comprendre le procédé opposé de (re)connexion des connecteurs mâle et femelle.Considering the Figures 1 to 3 in their reverse order, it would then be easy to understand the opposite process of (re) connection of the male and female connectors.

Il est aussi à noter que la géométrie curviligne (en crochet ou « L » arrondi) de la première piste (9) est disposée sur une majeure moitié de la came (3) et dont la première extrémité (position de coulisseau en figure 1) est plus éloignée de l'axe de pivot (2) que la deuxième extrémité (position de coulisseau en figure 3). Cette géométrie de piste permet une accélération de retrait du connecteur mâle (6) par rapport au connecteur femelle (7) lors du mode de déconnexion intermédiaire (figure 2). Cette accélération permet de diminuer la durée de coupure ou de soufflage de l'arc. A ce titre, il est fait référence à un document publié de type brevet FR2817389A qui avait été déposé le 30.11.2000 par une société maintenant affiliée au présent déposant. Principalement, cette publication présente au moyen des figures 1 à 6 et de leurs descriptions un dispositif de commutation analogue aux figures 1 à 3 précédemment décrites ci-dessus. Enfin, la publication inclut une figure 7 comprenant un dispositif analogue présentant cependant une came bi-piste, toutes deux à géométrie curviligne, au lieu d'une came mono-piste à géométrie curviligne.It should also be noted that the curvilinear geometry (hook or "L" rounded) of the first track (9) is disposed on a major half of the cam (3) and whose first end (slide position in figure 1 ) is further from the pivot axis (2) than the second end (slide position in figure 3 ). This track geometry makes it possible to accelerate withdrawal of the male connector (6) with respect to the female connector (7) during the intermediate disconnection mode ( figure 2 ). This acceleration makes it possible to reduce the duration of cut or blowing of the arc. As such, reference is made to a published patent-type document FR2817389A which had been filed on 30.11.2000 by a company now affiliated with the present applicant. Mainly, this publication presents by means of Figures 1 to 6 and their descriptions a switching device similar to Figures 1 to 3 previously described above. Finally, the publication includes a figure 7 comprising a similar device, however, having a dual-track cam, both with a curvilinear geometry, instead of a single-track cam with curvilinear geometry.

Plus spécifiquement et par référence, la figure 7 de FR2817389A est reproduite dans la présente invention sous figure 4 et présente un dispositif de commutation électrique (120) comprenant :

  • une embase de support comprenant un axe de pivot (voir croix) autour duquel pivote une came (184),
  • un premier bras (186) d'entrainement ayant une extrémité d'entrainement couplée à la came afin de la faire pivoter par rapport à l'embase autour de l'axe de pivot,
  • un deuxième bras (80) de commutation électrique par entrainement linéaire selon un axe du dit bras,
  • le dit deuxième bras (80) ayant :
    1. a) une première extrémité munie d'un connecteur électrique mâle dédié à être inséré dans ou retiré d'un connecteur électrique femelle et ;
    2. b) une deuxième extrémité entrainée par pivot de la came au moyen d'un couplage par coulissement, le dit couplage comprenant un premier coulisseau (190a) solidaire de la deuxième extrémité du deuxième bras et coulissant dans une première piste curviligne (192a) de la came,
  • l'extrémité d'entrainement du premier bras (186) d'entrainement de la came forme un moyen de couplage par coulissement, le dit couplage comprenant un deuxième coulisseau (190b) solidaire de ladite extrémité du premier bras et coulissant dans une deuxième piste (192b) de la came.
More specifically and by reference, the figure 7 of FR2817389A is reproduced in the present invention as figure 4 and has an electrical switching device (120) comprising:
  • a support base comprising a pivot axis (see cross) about which pivots a cam (184),
  • a first drive arm (186) having a drive end coupled to the cam to pivot relative to the hub about the pivot axis;
  • a second arm (80) for electrical commutation by linear drive along an axis of said arm,
  • said second arm (80) having:
    1. a) a first end provided with a dedicated male electrical connector to be inserted into or removed from a female electrical connector and;
    2. b) a second end driven by pivoting the cam by means of a sliding coupling, said coupling comprising a first slide (190a) integral with the second end of the second arm and sliding in a first curvilinear track (192a) of the cam,
  • the driving end of the first drive arm (186) of the cam forms a sliding coupling means, said coupling comprising a second slide (190b) secured to said end of the first arm and sliding in a second raceway ( 192b) of the cam.

Cette alternative bi-piste décrite selon FR2817389A en p. 22, 1. 18-31 et figure 7 permet d'atteindre des vitesses (accélérations) de coupure identiques à celles des figures 1 à 5 de FR2817389A et donc sans avantage cinétique face aux figures décrites 1 à 3 dans le présent document comprenant une came mono-piste. D'après une étude plus précise des glissements des coulisseaux, il apparait aussi que des répartitions d'efforts latéraux des coulisseaux sur les bords de leur piste respective créent des effets de friction indésirables.This alternative bi-track described according to FR2817389A on p. 22, 1. 18-31 and figure 7 allows to achieve cut speeds (accelerations) identical to those of Figures 1 to 5 of FR2817389A and therefore without kinetic advantage in relation to the figures described 1 to 3 in the present document comprising a single-track cam. From a more precise study of the sliding of the sliders, it also appears that lateral force distributions of the sliders on the edges of their respective track create undesirable friction effects.

Un but de la présente invention est de proposer un dispositif de commutation électrique efficace permettant une vitesse de déconnexion des connecteurs mâle et femelle plus rapide, en particulier pour une application haute tension comme un disjoncteur ou sectionneur sous poste d'enveloppe métallique de type GIS.An object of the present invention is to provide an effective electrical switching device allowing a speed of disconnection of the male and female connectors faster, in particular for a high voltage application such as a circuit breaker or disconnector under GIS metal envelope station.

A partir d'un dispositif de commutation électrique tel que décrit aux figures 1 à 3 et comprenant une came bi-piste tel que prévu à la figure 4, il est ainsi proposé un dispositif de commutation électrique selon les caractéristiques de la revendication 1. Ce même dispositif est aussi décrit sous un exemple de réalisation et d'application avantageuse fourni à l'aide de figures décrites :

  • Figure 5 : dispositif de commutation électrique à came bi-piste en mode de connexion fermée,
  • Figure 6 : dispositif de commutation électrique à came bi-piste en mode de déconnexion intermédiaire,
  • Figure 7 : dispositif de commutation électrique à came bi-piste en mode de déconnexion finale,
  • Figure 8 : Diagramme de vitesse de déplacement de bras du dit dispositif.
From an electrical switching device as described in Figures 1 to 3 and comprising a dual-track cam as provided for in figure 4 , it is thus proposed an electrical switching device according to the features of claim 1. This same device is also described in an embodiment and advantageous application provided using the figures described:
  • Figure 5 : electric switch device with dual-track cam in closed connection mode,
  • Figure 6 : electric switching device with bi-track cam in intermediate disconnection mode,
  • Figure 7 : electric switching device with dual-track cam in final disconnection mode,
  • Figure 8 : Diagram of arm movement speed of said device.

Un ensemble de sous-revendications présente également des avantages de l'invention.A set of subclaims also has advantages of the invention.

Figure 5 présente ainsi un dispositif de commutation électrique comprenant :

  • une embase de support (1) comprenant un axe de pivot (2) autour duquel pivote une came (3),
  • un premier bras (4) d'entrainement ayant une extrémité d'entrainement couplée à la came afin de la faire pivoter par rapport à l'embase autour de l'axe de pivot,
  • un deuxième bras (5) de commutation électrique par entrainement linéaire selon un axe du dit bras,
  • le dit deuxième bras ayant :
    1. a) une première extrémité munie d'un connecteur électrique mâle (6) dédié à être inséré dans ou retiré d'un connecteur électrique femelle (7) et ;
    2. b) une deuxième extrémité entrainée par pivot de la came au moyen d'un couplage par coulissement, le dit couplage comprenant un premier coulisseau (8) solidaire de la deuxième extrémité du deuxième bras et coulissant dans une première piste curviligne (9) de la came,
  • l'extrémité d'entrainement du premier bras d'entrainement de la came forme un moyen de couplage par coulissement, le dit couplage comprenant un deuxième coulisseau (10) solidaire de ladite extrémité du premier bras et coulissant dans une deuxième piste (11) de la came.
Figure 5 thus presents an electrical switching device comprising:
  • a support base (1) comprising a pivot axis (2) around which a cam (3) pivots,
  • a first drive arm (4) having a drive end coupled to the cam for pivoting relative to the hub about the pivot axis,
  • a second arm (5) for electrical commutation by linear drive along an axis of said arm,
  • said second arm having:
    1. a) a first end provided with a male electrical connector (6) dedicated to be inserted into or removed from a female electrical connector (7) and;
    2. b) a second end driven by pivoting of the cam by means of a sliding coupling, said coupling comprising a first slide (8) secured to the second end of the second arm and sliding in a first curvilinear track (9) of the cam,
  • the drive end of the first drive arm of the cam forms a sliding coupling means, said coupling comprising a second slide (10) secured to said end of the first arm and sliding in a second raceway (11). drug.

Le dit dispositif se caractérise enfin en ce que la deuxième piste (11) comprend une portion de piste linéaire ayant un axe principal (12) passant par le point de pivot (2) de la came.The said device is further characterized in that the second track (11) comprises a linear track portion having a main axis (12) passing through the pivot point (2) of the cam.

Le dispositif de commutation électrique à came bi-piste selon figure 5 est ici en mode de connexion fermée analoguement à la figure 1, c'est-à-dire que le connecteur électrique mâle (6) est inséré dans le connecteur électrique femelle (7). Le deuxième coulisseau (10) se trouve à une extrémité de la deuxième piste (11) la plus éloignée du point de pivot (2). Le premier coulisseau (8) se trouve également à une extrémité de la première piste (9) la plus éloignée du point de pivot (2).The electric switching device with a bi-track cam according to figure 5 is here in closed connection mode analogously to the figure 1 that is, the male electrical connector (6) is inserted into the female electrical connector (7). The second slider (10) is at one end of the second track (11) furthest from the pivot point (2). The first slider (8) is also at one end of the first track (9) furthest from the pivot point (2).

Lors d'un prochain mode de déconnexion (intermédiaire, puis finale) selon les figures suivantes 6 et 7, la première piste a un profil géométrique de glissement incurvé (puis linéaire) de sorte que pour un intervalle de positions du premier coulisseau sur ce profil en association à un intervalle de positions du deuxième coulisseau dans la deuxième piste, un entrainement linéaire du deuxième bras subit une accélération qui est ici un avantage considérable aussi présenté en figure 8.In a next disconnection mode (intermediate, then final) according to the following figures 6 and 7, the first track has a curved geometric profile (then linear) so that for a range of positions of the first slide on this profile in association with a range of positions of the second slider in the second track, a drive Linear of the second arm undergoes an acceleration which is here a considerable advantage also presented in figure 8 .

Figure 6 représente le dispositif de commutation électrique selon figure 5, toutefois en mode de déconnexion intermédiaire, analoguement au mode de déconnexion intermédiaire de la figure 2. Le connecteur mâle (6) se désolidarise du connecteur femelle (7) créant ainsi une rupture de contact sous arc électrique qui sera communément soufflé par une arrivée de gaz neutre ou du SF6 pendant la suite de la déconnexion. Figure 6 represents the electrical switching device according to figure 5 , however in intermediate disconnection mode, analogous to the intermediate disconnection mode of the figure 2 . The male connector (6) disengages from the female connector (7) thereby creating an arc contact break that will commonly be blown by a neutral gas supply or SF6 during the subsequent disconnection.

Ici, le deuxième coulisseau (10) se trouve à une autre extrémité de la deuxième piste (11) la plus proche du point de pivot (2). Le premier coulisseau (8) a alors parcouru plus de 30% sur la première piste (9) en direction de l'autre extrémité de la première piste (9) la plus proche du point de pivot (2).Here, the second slider (10) is at another end of the second track (11) closest to the pivot point (2). The first slider (8) then traveled more than 30% on the first track (9) towards the other end of the first track (9) closest to the pivot point (2).

L'effort d'entrainement (Fd) parallèle à l'axe du connecteur mâle (6) est assuré par le retrait du connecteur femelle (7) plus loin de l'embase fixe (1) par rapport à la figure 5. L'effort résultant (Fr) selon la direction principale - ici aussi avantageusement parallèle à l'axe du connecteur mâle - du premier bras d'entrainement (4) sur la came (3) est ainsi égal à 100% de l'effort d'entrainement (Fd) parallèle à l'axe du connecteur mâle. Le premier bras est ainsi couplé à un mécanisme de déplacement dudit bras selon une direction linéaire identique à celle de l'axe dudit premier bras, libre de rotation par rapport à l'embase de support. Le premier et le deuxième bras de forme longiligne forment des déplacements parallèles selon leurs axes pour toute position de leur coulisseau respectif avec une des pistes de la came. Même si cette configuration de transmission « parallèle » d'effort est optimale car permet une transmission intégrale des dits efforts, une rotation du premier bras peut être toutefois tolérée.The driving force (Fd) parallel to the axis of the male connector (6) is ensured by the withdrawal of the female connector (7) further from the fixed base (1) relative to the figure 5 . The resultant force (Fr) in the main direction - here also advantageously parallel to the axis of the male connector - of the first driving arm (4) on the cam (3) is thus equal to 100% of the force drive (Fd) parallel to the axis of the male connector. The first arm is thus coupled to a mechanism for moving said arm in a linear direction identical to that of the axis of said first arm, free of rotation relative to the support base. The first and second elongate arms form parallel movements along their axes for any position of their respective slider with one of the tracks of the cam. Even if this configuration of "parallel" transmission of effort is optimal because allows a complete transmission of said efforts, a rotation of the first arm can however be tolerated.

Par soucis de clarté dans le présent document, les efforts de frictions ne sont toujours pas considérés. Egalement, le premier coulisseau (8) glisse dans la piste (9) dont la géométrie curviligne en forme de crochet ou « L » arrondi est adaptée pour minimiser des efforts de frictions du coulisseau avec des bords de ladite piste.For the sake of clarity in this document, friction efforts are still not considered. Also, the first slider (8) slides in the track (9) whose curvilinear geometry hook-shaped or "L" rounded is adapted to minimize frictional forces of the slider with edges of said track.

Au plus simple, le dispositif selon l'invention prévoit ainsi que la deuxième piste est une ouverture oblongue linéaire. Il est à noter que la première et la deuxième pistes décrivent une forme en point d'interrogation (?) dont le point inférieur assimilé à la deuxième piste est toutefois oblong. Cette géométrie des pistes permet ainsi de fournir une accélération au premier coulisseau (8) afin de retirer plus vite le connecteur mâle (6) du guide d'entrée du connecteur femelle (7).At the simplest, the device according to the invention thus provides that the second track is a linear oblong opening. It should be noted that the first and second tracks describe a form question mark (?) Whose lower point similar to the second track is however oblong. This geometry of the tracks thus makes it possible to provide an acceleration to the first slider (8) in order to more quickly remove the male connector (6) from the input guide of the female connector (7).

Enfin, un guide d'entrée sous forme de tuyère (7') entrainée par le premier bras (4) et de la came en mode de déconnexion permet de retirer par coulissement dans la dite tuyère le connecteur mâle (6) du connecteur femelle (7), la dite tuyère (7') étant mobile par rapport à l'embase de support (1) .Finally, an inlet guide in the form of a nozzle (7 ') driven by the first arm (4) and the cam in the disconnection mode allows the male connector (6) of the female connector to be slidably withdrawn in the said nozzle ( 7), said nozzle (7 ') being movable relative to the support base (1).

Figure 7 représente le dispositif de commutation électrique selon figure 5 ou 6, toutefois en mode de déconnexion finale, analoguement au mode de déconnexion finale de la figure 3. Le connecteur mâle (6) est ainsi complétement désolidarisé du connecteur femelle (7). Figure 7 represents the electrical switching device according to figure 5 or 6 , however in the final disconnect mode, analogous to the final disconnect mode of the figure 3 . The male connector (6) is thus completely disengaged from the female connector (7).

Ici, le deuxième coulisseau (10) se trouve de nouveau à l'extrémité initiale de la deuxième piste (11) la plus éloignée du point de pivot (2). Le premier coulisseau (8) a alors parcouru toute la première piste (9) en direction de l'autre extrémité de la première piste (9) la plus proche du point de pivot (2).Here, the second slider (10) is again at the initial end of the second track (11) furthest from the pivot point (2). The first slide (8) then traveled the entire first track (9) towards the other end of the first track (9) closest to the pivot point (2).

Figure 8 présente un exemple de diagramme de vitesse de déplacement des premier et deuxième bras du dit dispositif, afin d'illustrer l'effet avantageux d'accélération décrit précédemment. Figure 8 shows an example of a displacement speed diagram of the first and second arms of said device, to illustrate the advantageous effect of acceleration described above.

Les courbes représentées sont une valeur (%) de déplacement (Di) en fonction d'une unité de temps (Tu) entre 0 et 1. Une première courbe (DS) indique ainsi la vitesse constante de retrait du premier bras (4) (lors du retrait du guide d'entrée 7). Une deuxième courbe (SC) indique la vitesse d'entrainement du connecteur mâle (6) pour un dispositif selon une des figures 1 à 3 (ou 4) : on peut y constater que dans l'intervalle de temps [0,2 ; 0,7], la dite vitesse de retrait du deuxième bras ou du connecteur mâle (6) est égale (et opposée) à celle du retrait du premier bras (4). Enfin, une troisième courbe (DC) indique la vitesse d'entrainement du connecteur mâle (6) pour un dispositif selon une des figures 5 à 7 : on peut y constater que, dans l'intervalle (HS) de temps [0,31 ; 0,46], la dite vitesse de retrait du deuxième bras ou du connecteur mâle (6) est augmentée (et opposée) par rapport à celle ( SC) du retrait du premier bras (4), il y a en effet une accélération d'un facteur 1,5 sur cet intervalle (HS) à haute vitesse, ce qui illustre bien l'effet souhaité par le dispositif selon l'invention, afin de rendre la déconnexion plus rapide et donc la coupure d'arc plus efficace.The curves represented are a value (%) of displacement (Di) as a function of a time unit (Tu) between 0 and 1. A first curve (DS) thus indicates the constant speed of withdrawal of the first arm (4) ( when removing the input guide 7). A second curve (SC) indicates the driving speed of the male connector (6) for a device according to one of the Figures 1 to 3 (or 4): we can see that in the time interval [0,2; 0.7], said withdrawal speed of the second arm or of the male connector (6) is equal (and opposite) to that of the withdrawal of the first arm (4). Finally, a third curve (DC) indicates the driving speed of the male connector (6) for a device according to one of the Figures 5 to 7 it can be seen that in the interval (HS) of time [0.31; 0.46], said withdrawal speed of the second arm or the male connector (6) is increased (and opposite) to that (SC) of the withdrawal of the first arm (4), there is indeed an acceleration of a factor of 1.5 over this interval (HS) at high speed, which illustrates the effect desired by the device according to the invention, in order to make the disconnection faster and thus arc cutting more effective.

Claims (6)

Dispositif de commutation électrique comprenant : - une embase de support (1) comprenant un axe de pivot (2) autour duquel pivote une came (3), - un premier bras (4) d'entrainement ayant une extrémité d'entrainement couplée à la came afin de la faire pivoter par rapport à l'embase autour de l'axe de pivot, - un deuxième bras (5) de commutation électrique par entrainement linéaire selon un axe du dit bras, - le dit deuxième bras ayant : a) une première extrémité munie d'un connecteur électrique mâle (6) dédié à être inséré dans ou retiré d'un connecteur électrique femelle (7) et ; b) une deuxième extrémité entrainée par pivot de la came au moyen d'un couplage par coulissement, le dit couplage comprenant un premier coulisseau (8) solidaire de la deuxième extrémité du deuxième bras et coulissant dans une première piste curviligne (9) de la came, - l'extrémité d'entrainement du premier bras d'entrainement de la came forme un moyen de couplage par coulissement, le dit couplage comprenant un deuxième coulisseau (10) solidaire de ladite extrémité du premier bras et coulissant dans une deuxième piste (11) de la came, caractérisé en ce que
la deuxième piste (11) comprend une portion de piste linéaire ayant un axe principal (12) passant par le point de pivot de la came.Electrical switching device comprising: a support base (1) comprising a pivot axis (2) around which a cam (3) pivots, a first driving arm (4) having a driving end coupled to the cam to pivot it relative to the base around the pivot axis, a second arm (5) for electrical commutation by linear drive along an axis of said arm, - said second arm having: a) a first end provided with a male electrical connector (6) dedicated to be inserted into or removed from a female electrical connector (7) and; b) a second end driven by pivoting of the cam by means of a sliding coupling, said coupling comprising a first slide (8) secured to the second end of the second arm and sliding in a first curvilinear track (9) of the cam, the drive end of the first drive arm of the cam forms a sliding coupling means, said coupling comprising a second slide (10) secured to said end of the first arm and sliding in a second race (11). of the cam, characterized in that
the second track (11) comprises a linear track portion having a main axis (12) passing through the pivot point of the cam. Dispositif selon revendication 1, pour lequel en mode de déconnexion, la première piste a un profil géométrique de glissement incurvé puis linéaire de sorte que pour un intervalle de positions du premier coulisseau en association à un intervalle de positions du deuxième coulisseau dans la deuxième piste, un entrainement linéaire du deuxième bras subit une accélération.Device according to claim 1, wherein in disconnection mode, the first track has a curved geometric profile and then linear so that for a range of positions of the first slider in combination with a range of positions of the second slider in the second track, a linear drive of the second arm is accelerated. Dispositif selon une des revendications 1 à 2, pour lequel le premier bras est couplé à un mécanisme de déplacement dudit bras selon une direction linéaire identique à celle de l'axe dudit premier bras, libre de rotation par rapport à l'embase de support.Device according to one of claims 1 to 2, wherein the first arm is coupled to a mechanism for moving said arm in a linear direction identical to that of the axis of said first arm, free of rotation relative to the support base. Dispositif selon une des revendications 1 à 3, pour lequel le premier et le deuxième bras de forme longiligne forment des déplacements parallèles selon leurs axes pour toute position de leur coulisseau respectif avec une des pistes de la came.Device according to one of claims 1 to 3, wherein the first and second elongate arm form parallel movements along their axes for any position of their respective slider with one of the tracks of the cam. Dispositif selon une des revendications 1 à 4, pour lequel la deuxième piste est une ouverture oblongue linéaire.Device according to one of claims 1 to 4, wherein the second track is a linear oblong opening. Dispositif selon une des revendications 1 à 5, pour lequel la première et la deuxième pistes décrivent une forme en point d'interrogation (?) dont le point inférieur est oblong.Device according to one of claims 1 to 5, wherein the first and second tracks describe a form question mark (?) Whose lower point is oblong.
EP15290105.4A 2015-04-15 2015-04-15 Electrical switching device with two-track cam Active EP3082144B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP15290105.4A EP3082144B1 (en) 2015-04-15 2015-04-15 Electrical switching device with two-track cam
CN201680021843.7A CN107533932B (en) 2015-04-15 2016-03-08 Electrical switchgear with double track cam
PCT/EP2016/054856 WO2016165877A1 (en) 2015-04-15 2016-03-08 Electrical switching device having a two-track cam
HRP20171782TT HRP20171782T1 (en) 2015-04-15 2017-11-16 Electrical switching device with two-track cam

Applications Claiming Priority (1)

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EP15290105.4A EP3082144B1 (en) 2015-04-15 2015-04-15 Electrical switching device with two-track cam

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EP3082144A1 true EP3082144A1 (en) 2016-10-19
EP3082144B1 EP3082144B1 (en) 2017-10-18

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Citations (6)

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Publication number Priority date Publication date Assignee Title
FR2817389A1 (en) 2000-11-30 2002-05-31 Schneider Electric High Voltag DOUBLE MOVEMENT HIGH VOLTAGE ELECTRICAL SWITCHING APPARATUS
DE29724842U1 (en) * 1996-05-24 2004-09-30 Siemens Ag HV circuit breaker with two drivable switch contact pieces - has drive element for second light arc contact piece attached to insulating nozzle for quenching gas and driven with it as well as being arranged radially inside permanent current contact pieces
JP2004281175A (en) * 2003-03-14 2004-10-07 Tm T & D Kk Gas circuit breaker
US20110147179A1 (en) * 2009-12-18 2011-06-23 Achim Stelter Electrical circuit breaker and switch position indicator thereto
DE102011078483A1 (en) * 2011-06-30 2013-01-03 Siemens Aktiengesellschaft Electrical switching device
WO2015029516A1 (en) * 2013-08-29 2015-03-05 株式会社日立製作所 Gas circuit breaker

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2651924Y (en) * 2003-09-29 2004-10-27 深圳市光辉电器实业有限公司 Vacuum loading switches
CN200947393Y (en) * 2006-08-18 2007-09-12 宁波奇乐电器实业总公司 Automatic change-over electric appliance
CN202018932U (en) * 2011-04-28 2011-10-26 上海市电力公司 Double-breakpoint universal breaker

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29724842U1 (en) * 1996-05-24 2004-09-30 Siemens Ag HV circuit breaker with two drivable switch contact pieces - has drive element for second light arc contact piece attached to insulating nozzle for quenching gas and driven with it as well as being arranged radially inside permanent current contact pieces
FR2817389A1 (en) 2000-11-30 2002-05-31 Schneider Electric High Voltag DOUBLE MOVEMENT HIGH VOLTAGE ELECTRICAL SWITCHING APPARATUS
JP2004281175A (en) * 2003-03-14 2004-10-07 Tm T & D Kk Gas circuit breaker
US20110147179A1 (en) * 2009-12-18 2011-06-23 Achim Stelter Electrical circuit breaker and switch position indicator thereto
DE102011078483A1 (en) * 2011-06-30 2013-01-03 Siemens Aktiengesellschaft Electrical switching device
WO2015029516A1 (en) * 2013-08-29 2015-03-05 株式会社日立製作所 Gas circuit breaker

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CN107533932A (en) 2018-01-02
CN107533932B (en) 2019-03-26
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HRP20171782T1 (en) 2017-12-29
WO2016165877A1 (en) 2016-10-20

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