EP0540431A1 - Handling mechanism for tetrapolar circuit breaker - Google Patents

Handling mechanism for tetrapolar circuit breaker Download PDF

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Publication number
EP0540431A1
EP0540431A1 EP92420366A EP92420366A EP0540431A1 EP 0540431 A1 EP0540431 A1 EP 0540431A1 EP 92420366 A EP92420366 A EP 92420366A EP 92420366 A EP92420366 A EP 92420366A EP 0540431 A1 EP0540431 A1 EP 0540431A1
Authority
EP
European Patent Office
Prior art keywords
bar
pole
spring
stop
operating mechanism
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
EP92420366A
Other languages
German (de)
French (fr)
Other versions
EP0540431B1 (en
Inventor
Robert Morel
Xavier Thomassin
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 SE
Original Assignee
Merlin Gerin SA
Schneider Electric SE
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 Merlin Gerin SA, Schneider Electric SE filed Critical Merlin Gerin SA
Publication of EP0540431A1 publication Critical patent/EP0540431A1/en
Application granted granted Critical
Publication of EP0540431B1 publication Critical patent/EP0540431B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/002—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor
    • 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
    • H01H1/2041—Rotating bridge
    • H01H1/205—Details concerning the elastic mounting of the rotating bridge in the rotor
    • 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
    • H01H1/2041—Rotating bridge
    • H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts

Definitions

  • the invention relates to an operating mechanism for an electric four-pole breaking device, in particular a circuit breaker comprising three poles respectively associated with the three phases and a pole associated with neutral.
  • the opening and closing operating mechanism of a circuit breaker is associated with one of the poles.
  • this mechanism being associated with the central pole, the lateral forces are distributed symmetrically on either side of the mechanism.
  • four-pole circuit breakers due to the asymmetry introduced by the position of the mechanism, there are problems of bending and / or torsion on the coupling means connecting the poles together.
  • Document FR-A-2,478,368 proposes a solution to the aforementioned drawbacks, which consists in adding an auxiliary mechanism to the pole associated with the neutral.
  • This auxiliary mechanism modulates the resistive torque during the maneuver thanks to an angular offset between the three poles associated with the phases and the pole associated with the neutral which differs the actuation of the pole from the neutral; this mechanism includes in particular a compression spring to compensate for friction forces and promote the passage of neutral.
  • the aforementioned solution does not allow perfect simultaneity of the opening and closing operations of the four poles; moreover, it does not allow a rationalization of the manufacture of the poles because of the differences existing between the poles associated with the phases and the pole associated with the neutral; finally, the mechanism is subject to significant fatigue phenomena.
  • the object of the invention is to remedy the aforementioned drawbacks and to allow the manufacture of a four-pole circuit breaker. simple, economical, robust and reliable.
  • the auxiliary pole In the stable open or closed position, the auxiliary pole is transparent to the coupling means, that is to say that the auxiliary pole does not induce any torque and / or bending on the rest of the mechanism.
  • This twist and / or bending on the coupling means and on the main mechanism is present only during opening and closing operations, which represents a tiny fraction of the life of a switching device, thus avoiding the problems of fatigue of the operating mechanism.
  • the free end of the pulling is articulated on a yoke which is in turn articulated around a second transverse axis of the device, and which cooperates with a crank integral in rotation with the bar, the stop being arranged coaxially to the second transverse axis.
  • the yoke is provided with a pin which cooperates with a light made in the crank; the light comprises a radial part and a tangential part with respect to the rotation of the crank.
  • the tie rod is formed by a plate articulated on the yoke by means of two lugs, and the stop is formed by the articulation axis of the yoke around the second transverse axis.
  • the four poles can in particular be identical, the coupling means being formed by two rods diametrically opposite with respect to the transverse axis and pass through all of the elementary bars right through.
  • Figure 1 is a schematic view of a four-pole switching device.
  • Figure 2 is a section through a pole.
  • Figures 3A and 3B illustrate a first embodiment of the invention.
  • Figures 4A and 4B illustrate a second embodiment of the invention.
  • Figures 5A, 5B, 5C illustrate a third embodiment of the invention.
  • FIG. 6 represents, with reference to the third embodiment, a perspective of the auxiliary mechanism associated with the fourth pole.
  • a four-pole circuit breaker comprises three poles P1, P2 and P3 associated with the phase conductors of the network, and a fourth pole N associated with the neutral conductor.
  • the four poles of the circuit breaker are housed in rectangular boxes made of molded insulating material, placed side by side along the transverse axis XX ′; these boxes can in particular be in the form of four identical boxes, each pole having its own box, or even in the form of two boxes, a first monobloc box containing the poles P1, P2 and P3 and a second box for the pole N .
  • the circuit breaker operating mechanism comprises a main mechanism Mp associated with the main pole Pp, and an auxiliary mechanism Ma associated with the auxiliary pole Pa, and intended to remedy the phenomena of bending and / or torsion introduced by the asymmetrical position of the main mechanism Mp .
  • a coupling mechanism Mc connects the main mechanism Mp to the auxiliary mechanism Ma.
  • the main mechanism Mp is actuated in a known manner, either by manual action by means of a control lever (not shown), or by means of a trip unit (not shown), magnetothermic or electronic.
  • FIG. 2 represents, a cut-off pole P1 particularly well suited to the invention because of its modularity.
  • the four poles P1, P2, P3 and N are strictly identical and are adapted so as to receive or not a main mechanism Mp or an auxiliary mechanism Ma, which allows a very thorough rationalization of the manufacture of circuit breakers : in particular, it is possible, from a single pole manufacturing line, to assemble these poles to make it a two-pole, three-pole or four-pole circuit breaker.
  • the breaking pole P1 is housed in a housing 8 of molded insulating material, in which two breaking chambers 6a and 6b are arranged.
  • the pole P1 comprises a rotary contact 3 with double breaking which cooperates with two fixed contacts 2a and 2b respectively connected to the connection pads 7a and 7b.
  • the rotary contact 3 is housed in a rotary elementary switching bar 1 made of insulating material which is guided in rotation about the axis ZZ ′.
  • the rotary contact 3 is coupled to the bar 1 by means of two contact pressure springs 4a and 4b.
  • the bar 1 is pierced with two diametrically opposite holes with respect to the transverse axis ZZ ′, and adapted to receive two transverse rods 5a and 5b which ensure the mechanical coupling Mc of the four poles P1, P2, P3 and N right through , and by the same token, the coupling of the main mechanism Mp with the auxiliary mechanism Ma.
  • FIGS. 3A and 3B show a rotary contact 3 with single breaking, respectively in the closed and open positions of the pole, the second cut having been replaced by a braid 9 which connects the rotary contact 3 to the connection pad 7b.
  • the rotary contact 3, housed in the rotary bar 1, is coupled to the bar 1 by a contact pressure spring 4, which when the pole is closed, exerts a reaction force F on the bar 1 as indicated in FIG. 3A.
  • a tension spring 10 is attached at one of its ends to a hook 11 integral with the bar 1 and located on a radius of the bar 1; the other end of the spring 10 is attached to an anchor 12 secured to the housing 8, so that the spring 10, in the closed position of the pole, is rectilinear and almost comes to graze a stop 13 secured to the bar 1 and located on the axis of rotation ZZ ′ of the bar 1.
  • the tension spring 10 stretched in a rectilinear fashion forms a slight angle ⁇ with the diameter of the bar passing through the hook 11, so as to exert a torque C on the bar in the direction opposite to the force F, that is, keep the contacts closed.
  • the auxiliary mechanism In the open position, the auxiliary mechanism is again transparent to the rest of the operating mechanism.
  • FIGS. 4A and 4B illustrate a second embodiment of the auxiliary mechanism associated with a double-break rotary contact.
  • the spring means of the mechanism comprise a tie rod 25 and a tension spring 20 placed end to end by means of a pivot 24.
  • the free end of the tie rod is coupled by a joint 27 to the end of a crank 26 secured to the elementary bar 1.
  • the free end of the spring 20 is attached to an anchor 22 secured to the housing.
  • the pulling assembly 25 / spring 20 In the closed position of the contacts, the pulling assembly 25 / spring 20 is rectilinear and forms a small angle ⁇ with the diameter of the bar 1 passing through the articulation 27.
  • the pivot 24 is in the vicinity of a stop 23 integral with the crank 26, and arranged coaxially to the transverse axis XX ′.
  • the pulling assembly 25 / spring 20 exerts a torque on the bar 1 which opposes the force developed by the contact pressure springs 4a, 4b on the bar 1.
  • the pivot 24 comes to bear on the stop 23, which has the effect of eliminating the torque developed by the tie rod 25 / spring 20 assembly, as soon as the contacts are separated and when the contacts are open, the tie rod 25 and the spring 20 then forms an angle ⁇ at the pivot 24.
  • the assembly pulling 25 / spring 20 becomes rectilinear again and exerts a torque on the bar 1 as soon as the pivot 24 separates from the stop 23, that is to say as soon as the contacts actually come into contact.
  • FIGS. 5A, 5B, 5C and 6 The third embodiment described with reference to FIGS. 5A, 5B, 5C and 6 is the preferred embodiment of the invention.
  • the spring means of the auxiliary mechanism are no longer directly integral with the bar 1.
  • the housing 8 of the pole N is provided with a plate 31 fixed laterally by screws 40 and 41, which covers the top of the pole P.
  • the plate 31 carries an axis of rotation 33 along the axis YY ′ on which is mounted a yoke 34.
  • the yoke 34 is guided in rotation about the axis YY ′ by means of a crank 36 secured to the bar 1; this guidance is provided by a lateral pin 37 integral with the yoke 34, which is housed in a slot 38 formed in the crank 36.
  • the spring means of the auxiliary mechanism comprise a tie rod 35 formed by a plate and a spring 30 attached end to end in the vicinity of the axis of rotation 33.
  • the free end of the plate 35 is articulated on the vertical sides of the yoke 34 by means of two lugs 39, and the free end of the spring 30 is attached to an anchor 32 of the plate 31.
  • the spring 30 / plate 35 assembly In the closed position of the pole, illustrated in FIG. 5A, the spring 30 / plate 35 assembly is rectilinear and forms an angle ⁇ with the straight line passing through the axis of rotation 33 and the anchor 32.
  • the spring 30 then exerts a torque which opposes the force developed by the contact pressure springs 4a and the value of which is such that it leaves a clearance 43 between the bar 1 and the rotary contact 3, which serves as a wear guard contacts 2a, 2b, 3a, 3b.
  • the plate 35 and the spring form an angle ⁇ and the pin 37 has joined the second end of the light 38.
  • the light 38 formed in the crank 36 has a radial part 38A and a tangential part 38B relative to the rotation of the crank.
  • the radial part 38A of the light 38 allows a significant reduction in the useful angular range during the transition between a pulling assembly 35 / straight spring 30 in the closed position, and a pulling assembly 35 / spring 30 broken in the open position; it also makes it possible to reduce the length of the spring 30.
  • the tangential part 38B of the light 38 allows the bar 1 to continue its opening stroke without having to drive the yoke 34.
  • auxiliary mechanism of this third embodiment is particularly advantageous, since it has a very small footprint and does not require any particular adjustment of the angle ⁇ due to the reduction in the useful angular range.
  • auxiliary mechanism fits on a standard pole, that is to say a pole identical to those associated with the phases, allows a very great rationalization of the manufacture of the poles.
  • the coupling means Mc are produced by elementary bars secured by means of two rods 5a, 5b; these coupling means can be modified, for example by using a single bar for the four poles, or even a single bar for the three poles associated with the phases coupled to a bar for the pole associated with the neutral, without however depart from the scope of the invention.

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  • Breakers (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Abstract

The handling mechanism for the tetrapolar circuit breaker comprises an auxiliary mechanism coupled to the main mechanism. The spring (10) of the auxiliary mechanism exerts a couple on the bar (1) which is opposed to the force of the contact springs (4b) when the apparatus finishes its closure stroke and when it is closed; the spring (10) ceases to act on the bar (1) when the apparatus has begun its opening stroke and when it is open. <IMAGE>

Description

L'invention concerne un mécanisme de manoeuvre pour appareil électrique de coupure, tétrapolaire, notamment un disjoncteur comprenant trois pôles respectivement associés aux trois phases et un pôle associé au neutre.The invention relates to an operating mechanism for an electric four-pole breaking device, in particular a circuit breaker comprising three poles respectively associated with the three phases and a pole associated with neutral.

D'une manière générale, le mécanisme de manoeuvre d'ouverture et de fermeture d'un disjoncteur est associé à l'un des pôles. Pour les disjoncteurs tripolaires, ce mécanisme étant associé au pôle central, les efforts latéraux sont répartis de manière symétrique de part et d'autre du mécanisme. Pour les disjoncteurs tétrapolaires, du fait de la dissymétrie introduite par la position du mécanisme, se pose des problèmes de flexion et/ou de torsion sur les moyens de couplage reliant les pôles entre eux.In general, the opening and closing operating mechanism of a circuit breaker is associated with one of the poles. For three-pole circuit breakers, this mechanism being associated with the central pole, the lateral forces are distributed symmetrically on either side of the mechanism. For four-pole circuit breakers, due to the asymmetry introduced by the position of the mechanism, there are problems of bending and / or torsion on the coupling means connecting the poles together.

Le document FR-A-2.478.368 propose une solution aux inconvénients précités, qui consiste à ajouter un mécanisme auxiliaire au pôle associé au neutre. Ce mécanisme auxiliaire module le couple résistant au cours de la manoeuvre grâce à un décalage angulaire entre les trois pôles associés aux phases et le pôle associé au neutre qui diffère l'actionnement du pôle du neutre; ce mécanisme comprend notamment un ressort de compression pour compenser les efforts de frottement et favoriser le passage du point mort.Document FR-A-2,478,368 proposes a solution to the aforementioned drawbacks, which consists in adding an auxiliary mechanism to the pole associated with the neutral. This auxiliary mechanism modulates the resistive torque during the maneuver thanks to an angular offset between the three poles associated with the phases and the pole associated with the neutral which differs the actuation of the pole from the neutral; this mechanism includes in particular a compression spring to compensate for friction forces and promote the passage of neutral.

De part sa conception, la solution précitée n'autorise pas la simultanéité parfaite des manoeuvres d'ouverture et de fermeture des quatre pôles; de plus, elle ne permet pas une rationalisation de la fabrication des pôles du fait des différences existant entre les pôles associés aux phases et le pôle associé au neutre; finalement, le mécanisme est soumis à des phénomènes de fatigue importants.Due to its design, the aforementioned solution does not allow perfect simultaneity of the opening and closing operations of the four poles; moreover, it does not allow a rationalization of the manufacture of the poles because of the differences existing between the poles associated with the phases and the pole associated with the neutral; finally, the mechanism is subject to significant fatigue phenomena.

L'invention a pour objet de remédier aux inconvénients précités et de permettre la fabrication d'un disjoncteur tétrapolaire simple, économique, robuste et fiable.The object of the invention is to remedy the aforementioned drawbacks and to allow the manufacture of a four-pole circuit breaker. simple, economical, robust and reliable.

Le mécanisme de manoeuvre de l'invention est destiné à manoeuvrer simultanément les quatre pôles disposés côte à côte selon une direction transversale; l'un des deux pôles adjacents au plan de symétrie du disjoncteur est désigné comme le pôle principal; le pôle le plus éloigné du pôle principal est désigné comme le pôle auxiliaire, et comprend:

  • un barreau élémentaire rotatif de commutation guidé en rotation autour d'un premier axe transversal
  • au moins un contact fixe; et
  • un contact rotatif à simple ou double coupure, couplé en rotation au barreau par l'intermédiaire de ressorts de pression de contact;

   le mécanisme de manoeuvre comprend:
  • un mécanisme principal d'ouverture et de fermeture, associé au pôle principal;
  • un mécanisme auxiliaire associé au pôle auxiliaire et comprenant des moyens ressorts,
  • des moyens de couplage entre le mécanisme principal et le mécanisme auxiliaire;

   selon l'invention les moyens ressorts exercent d'une part un couple sur le barreau du pôle auxiliaire qui s'oppose à la force développée par les ressorts de pression de contact du pôle auxiliaire lorsque l'appareil termine sa course de fermeture et lorsqu'il est fermé, et d'autre part cessent d'agir sur le barreau du pôle auxiliaire lorsque l'appareil a commencé sa course d'ouverture et lorsqu'il est ouvert.The operating mechanism of the invention is intended to operate simultaneously the four poles arranged side by side in a transverse direction; one of the two poles adjacent to the plane of symmetry of the circuit breaker is designated as the main pole; the pole furthest from the main pole is designated as the auxiliary pole, and includes:
  • a rotary elementary switching bar guided in rotation about a first transverse axis
  • at least one fixed contact; and
  • a single or double break rotary contact, coupled in rotation to the bar by means of contact pressure springs;

the operating mechanism includes:
  • a main opening and closing mechanism, associated with the main pole;
  • an auxiliary mechanism associated with the auxiliary pole and comprising spring means,
  • coupling means between the main mechanism and the auxiliary mechanism;

according to the invention the spring means exert on the one hand a torque on the bar of the auxiliary pole which opposes the force developed by the contact pressure springs of the auxiliary pole when the device ends its closing stroke and when it is closed, and on the other hand cease to act on the bar of the auxiliary pole when the device has started its opening stroke and when it is open.

En position stable ouverte ou fermée, le pôle auxiliaire est transparent pour les moyens de couplage, c'est à dire que le pôle auxiliaire n'induit aucun couple de torsion et/ou de flexion sur le reste du mécanisme. Cette torsion et/ou flexion sur les moyens de couplage et sur le mécanisme principal est présente uniquement lors des manoeuvres d'ouverture et de fermeture, ce qui représente une fraction infime de la vie d'un appareil de coupure, évitant ainsi les problèmes de fatigue du mécanisme de manoeuvre.In the stable open or closed position, the auxiliary pole is transparent to the coupling means, that is to say that the auxiliary pole does not induce any torque and / or bending on the rest of the mechanism. This twist and / or bending on the coupling means and on the main mechanism is present only during opening and closing operations, which represents a tiny fraction of the life of a switching device, thus avoiding the problems of fatigue of the operating mechanism.

Selon un premier mode de réalisation, les moyens ressorts incluent un ressort de traction disposé dans un plan perpendiculaire à la direction transversale, dont une première extrémité est couplée en rotation au barreau du pôle auxiliaire et dont la seconde extrémité est ancrée à un point fixe de l'appareil, le ressort de traction prenant alternativement les formes suivantes:

  • d'une part, une ligne droite qui passe au voisinage d'une butée fixe, disposée de manière coaxiale au premier axe transversal, lorsque l'appareil termine sa course de fermeture et lorsqu'il est fermé;
  • d'autre part, une ligne brisée au niveau de la butée lorsque l'appareil a commencé sa course d'ouverture et lorsqu'il est ouvert.
According to a first embodiment, the spring means include a tension spring arranged in a plane perpendicular to the transverse direction, the first end of which is coupled in rotation to the bar of the auxiliary pole and the second end of which is anchored at a fixed point of the device, the tension spring alternately taking the following forms:
  • on the one hand, a straight line which passes in the vicinity of a fixed stop, arranged coaxially to the first transverse axis, when the device ends its closing stroke and when it is closed;
  • on the other hand, a broken line at the stop when the device has started its opening stroke and when it is open.

Selon un second mode de réalisation, les moyens ressorts incluent un tirant rigide et un ressort de traction mis bout à bout par l'intermédiaire d'une articulation, l'ensemble tirant/ressort étant disposé dans un plan perpendiculaire à l'axe transversal; l'extrémité libre du tirant est couplé en rotation au barreau du pôle auxiliaire, et l'extrémité libre du ressort est ancrée à un point fixe de l'appareil, l'ensemble tirant/ressort prend alternativement les formes suivantes:

  • d'une part une ligne droite qui passe au voisinage d'une butée fixe, disposée de manière coaxiale au premier axe transversal, lorsque l'appareil termine sa course d'ouverture et lorsqu'il est fermé, l'articulation étant à la hauteur de la butée;
  • d'autre part, une ligne brisée au niveau de l'articulation autour de la butée lorsque l'appareil a commencé sa course d'ouverture et lorsqu'il est ouvert.
According to a second embodiment, the spring means include a rigid tie rod and a tension spring placed end to end via a joint, the tie rod / spring assembly being arranged in a plane perpendicular to the transverse axis; the free end of the tie rod is coupled in rotation to the bar of the auxiliary pole, and the free end of the spring is anchored to a fixed point on the device, the tie rod / spring assembly alternately takes the following forms:
  • on the one hand, a straight line which passes in the vicinity of a fixed stop, arranged coaxially to the first transverse axis, when the device ends its opening stroke and when it is closed, the joint being at the height of the stop;
  • on the other hand, a broken line at the joint around the stop when the device has started its opening stroke and when it is open.

Selon le troisième mode de réalisation, l'extrémité libre du tirant est articulée sur une chape qui est à son tour articulée autour d'un second axe transversal de l'appareil, et qui coopère avec une manivelle solidaire en rotation avec le barreau, la butée étant disposée de manière coaxiale au second axe transversal.According to the third embodiment, the free end of the pulling is articulated on a yoke which is in turn articulated around a second transverse axis of the device, and which cooperates with a crank integral in rotation with the bar, the stop being arranged coaxially to the second transverse axis.

De préférence, la chape est munie d'un pion qui coopère avec une lumière pratiquée dans la manivelle; la lumière comprend une partie radiale et une partie tangentielle par rapport à la rotation de la manivelle.Preferably, the yoke is provided with a pin which cooperates with a light made in the crank; the light comprises a radial part and a tangential part with respect to the rotation of the crank.

Le tirant est formé par une plaquette articulée sur la chape par l'intermédiaire de deux ergots, et la butée est formée par l'axe d'articulation de la chape autour du second axe transversal.The tie rod is formed by a plate articulated on the yoke by means of two lugs, and the stop is formed by the articulation axis of the yoke around the second transverse axis.

Les quatre pôles peuvent notamment être identiques, les moyens de couplage étant formés par deux tringles diamétralement opposées par rapport à l'axe transversal et traversent l'ensemble des barreaux élémentaires de part en part.The four poles can in particular be identical, the coupling means being formed by two rods diametrically opposite with respect to the transverse axis and pass through all of the elementary bars right through.

D'autres avantages et caractéristiques ressortiront plus clairement de la description qui va suivre, en référence aux dessins annéxés dans lesquels:Other advantages and characteristics will emerge more clearly from the description which follows, with reference to the appended drawings in which:

La figure 1 est une vue schématique d'un appareil de coupure tétrapolaire.Figure 1 is a schematic view of a four-pole switching device.

La figure 2 est une coupe à travers un pôle.Figure 2 is a section through a pole.

Les figures 3A et 3B illustrent un premier mode de réalisation de l'invention.Figures 3A and 3B illustrate a first embodiment of the invention.

Les figures 4A et 4B illustrent un second mode de réalisation de l'invention.Figures 4A and 4B illustrate a second embodiment of the invention.

Les figures 5A,5B,5C illustrent un troisième mode de réalisation de l'invention.Figures 5A, 5B, 5C illustrate a third embodiment of the invention.

La figure 6 représente, en référence au troisième mode de réalisation, une perspective du mécanisme auxiliaire associé au quatrième pôle.FIG. 6 represents, with reference to the third embodiment, a perspective of the auxiliary mechanism associated with the fourth pole.

Sur la figure 1, un disjoncteur tétrapolaire comporte trois pôles P1,P2 et P3 associés aux conducteurs de phase du réseau, et un quatrième pôle N associé au conducteur neutre. Les quatre pôles du disjoncteur sont logés dans des boîtiers parallélépipèdiques en matériau isolant moulé, placés côte à côte selon l'axe transversal XX′; ces boîtiers peuvent notamment se présenter sous la forme de quatre boîtiers identiques, chaque pôle ayant son propre boîtier, ou encore sous la forme de deux boîtiers, un premier boîtier monobloc renfermant les pôles P1,P2 et P3 et un deuxième boîtier pour le pôle N.In FIG. 1, a four-pole circuit breaker comprises three poles P1, P2 and P3 associated with the phase conductors of the network, and a fourth pole N associated with the neutral conductor. The four poles of the circuit breaker are housed in rectangular boxes made of molded insulating material, placed side by side along the transverse axis XX ′; these boxes can in particular be in the form of four identical boxes, each pole having its own box, or even in the form of two boxes, a first monobloc box containing the poles P1, P2 and P3 and a second box for the pole N .

L'un des deux pôles P2 ou P3 adjacents au plan de symétrie AA sera désigné le"pôle principal Pp"(Pp étant P2 sur la figure 1), le pôle le plus éloigné du pôle principal Pp étant désigné "le pôle auxiliaire Pa" (Pa étant N sur la figure 1). Le mécanisme de manoeuvre du disjoncteur comporte un mécanisme principal Mp associé au pôle principal Pp, et un mécanisme auxiliaire Ma associé au pôle auxiliaire Pa, et destiné à remédier aux phénomènes de flexion et/ou de torsion introduits par la position dissymétrique du mécanisme principal Mp.One of the two poles P2 or P3 adjacent to the plane of symmetry AA will be designated the "main pole Pp" (Pp being P2 in FIG. 1), the pole farthest from the main pole Pp being designated "the auxiliary pole Pa" (Pa being N in Figure 1). The circuit breaker operating mechanism comprises a main mechanism Mp associated with the main pole Pp, and an auxiliary mechanism Ma associated with the auxiliary pole Pa, and intended to remedy the phenomena of bending and / or torsion introduced by the asymmetrical position of the main mechanism Mp .

Un mécanisme de couplage Mc relie le mécanisme principal Mp au mécanisme auxiliaire Ma.A coupling mechanism Mc connects the main mechanism Mp to the auxiliary mechanism Ma.

La mécanisme principal Mp est actionné de façon connue, soit par action manuelle au moyen d'une manette de commande (non représenté), soit par l'intermédiaire d'un déclencheur (non représenté), magnétothermique ou électronique.The main mechanism Mp is actuated in a known manner, either by manual action by means of a control lever (not shown), or by means of a trip unit (not shown), magnetothermic or electronic.

La figure 2 représente, un pôle de coupure P1 particulièrement bien adapté à l'invention du fait de sa modularité. En d'autres termes, les quatre pôles P1,P2,P3 et N sont strictement identiques et sont adaptés de manière à recevoir ou non un mécanisme principal Mp ou un mécanisme auxiliaire Ma, ce qui permet une rationalisation très poussée de la fabrication des disjoncteurs: on peut notamment à partir d'une seule ligne de fabrication de pôles, assembler ces pôles pour en faire un disjoncteur bipolaire, tripolaire ou tétrapolaire.FIG. 2 represents, a cut-off pole P1 particularly well suited to the invention because of its modularity. In other words, the four poles P1, P2, P3 and N are strictly identical and are adapted so as to receive or not a main mechanism Mp or an auxiliary mechanism Ma, which allows a very thorough rationalization of the manufacture of circuit breakers : in particular, it is possible, from a single pole manufacturing line, to assemble these poles to make it a two-pole, three-pole or four-pole circuit breaker.

Le pôle de coupure P1 est logé dans un boîtier 8 en matériau isolant moulé, dans lequel sont aménagées deux chambres de coupure 6a et 6b. Le pôle P1 comporte un contact rotatif 3 à double coupure qui coopère avec deux contacts fixes 2a et 2b respectivement reliés aux plages de connexion 7a et 7b. Le contact rotatif 3 est logé dans un barreau élémentaire rotatif de commutation 1 en matériau isolant qui est guidé en rotation autour de l'axe ZZ′. Le contact rotatif 3 est couplé au barreau 1 par l'intermédiaire de deux ressorts de pression de contact 4a et 4b.The breaking pole P1 is housed in a housing 8 of molded insulating material, in which two breaking chambers 6a and 6b are arranged. The pole P1 comprises a rotary contact 3 with double breaking which cooperates with two fixed contacts 2a and 2b respectively connected to the connection pads 7a and 7b. The rotary contact 3 is housed in a rotary elementary switching bar 1 made of insulating material which is guided in rotation about the axis ZZ ′. The rotary contact 3 is coupled to the bar 1 by means of two contact pressure springs 4a and 4b.

On pourra avantageusement se reporter au document EP-A-314.540 pour de plus amples explications à propos du pôle de coupure, ou pour d'autres modes de réalisation du pôle de coupure.Advantageously, reference may be made to document EP-A-314.540 for further explanations concerning the breaking pole, or for other embodiments of the breaking pole.

Le barreau 1 est percé de deux trous diamétralement opposés par rapport à l'axe transversal ZZ′, et adpatés à recevoir deux tringles transversales 5a et 5b qui assurent le couplage mécanique Mc des quatre pôles P1,P2,P3 et N de part en part, et par la même, le couplage du mécanisme principal Mp avec le mécanisme auxiliaire Ma.The bar 1 is pierced with two diametrically opposite holes with respect to the transverse axis ZZ ′, and adapted to receive two transverse rods 5a and 5b which ensure the mechanical coupling Mc of the four poles P1, P2, P3 and N right through , and by the same token, the coupling of the main mechanism Mp with the auxiliary mechanism Ma.

En référence aux figures 3A et 3B, nous allons aborder un premier mode de réalisation du mécanisme auxiliaire Ma associé au pôle auxiliaire Pa. Les figures 3A et 3B montrent un contact rotatif 3 à simple coupure, respectivement dans les positions fermée et ouverte du pôle, la deuxième coupure ayant été remplacée par une tresse 9 qui relie le contact rotatif 3 à la plage de connexion 7b. Le contact rotatif 3, logé dans le barreau rotatif 1, est couplé au barreau 1 par un ressort de pression de contact 4, qui lorsque le pôle est fermé, exerce une force F de réaction sur le barreau 1 comme indiqué sur la figure 3A.With reference to FIGS. 3A and 3B, we will approach a first embodiment of the auxiliary mechanism Ma associated with the auxiliary pole Pa. FIGS. 3A and 3B show a rotary contact 3 with single breaking, respectively in the closed and open positions of the pole, the second cut having been replaced by a braid 9 which connects the rotary contact 3 to the connection pad 7b. The rotary contact 3, housed in the rotary bar 1, is coupled to the bar 1 by a contact pressure spring 4, which when the pole is closed, exerts a reaction force F on the bar 1 as indicated in FIG. 3A.

Un ressort de traction 10 est attaché à l'une de ses extrémités à un crochet 11 solidaire du barreau 1 et situé sur un rayon du barreau 1; l'autre extrémité du ressort 10 est attachée à un ancrage 12 solidaire du boîtier 8, de manière à ce que le ressort 10, dans la position fermée du pôle, soit rectiligne et vienne pratiquement frôler une butée 13 solidaire du barreau 1 et situé sur l'axe de rotation ZZ′ du barreau 1.A tension spring 10 is attached at one of its ends to a hook 11 integral with the bar 1 and located on a radius of the bar 1; the other end of the spring 10 is attached to an anchor 12 secured to the housing 8, so that the spring 10, in the closed position of the pole, is rectilinear and almost comes to graze a stop 13 secured to the bar 1 and located on the axis of rotation ZZ ′ of the bar 1.

En d'autres termes, le ressort de traction 10 tendu de manière rectiligne forme un léger angle α avec le diamètre du barreau passant par le crochet 11, de manière à exercer un couple C sur le barreau dans la direction opposée à la force F, c'est à dire à tenir les contacts fermés.In other words, the tension spring 10 stretched in a rectilinear fashion forms a slight angle α with the diameter of the bar passing through the hook 11, so as to exert a torque C on the bar in the direction opposite to the force F, that is, keep the contacts closed.

Une sélection appropriée des caractéristiques des ressorts 4b et 10 autorise la transparence du mécanisme de manoeuvre lorsque l'appareil est fermé.An appropriate selection of the characteristics of the springs 4b and 10 allows the transparency of the operating mechanism when the device is closed.

Lorsque les tringles transversales 5a et 5b subissent un mouvement de rotation autour de l'axe XX′, sous l'effet du mécanisme principal Mp, le barreau 1 se met en rotation pour aboutir à la position ouverte, illustrée à la figure 3B. Dès que le barreau 1 a entamé son mouvement de rotation, la partie intermédiaire du ressort 10 vient s'appuyer contre la butée 13 en formant une ligne brisée d'angle β , ce qui a pour effet de supprimer le couple C sur le barreau 1; en d'autres termes, dès la séparation des contacts, le ressort de traction 10 cesse de s'opposer à l'ouverture des contacts.When the transverse rods 5a and 5b undergo a rotational movement around the axis XX ′, under the effect of the main mechanism Mp, the bar 1 starts to rotate to reach the open position, illustrated in FIG. 3B. As soon as the bar 1 has started its rotational movement, the intermediate part of the spring 10 comes to bear against the stop 13 by forming a broken line of angle β, which has the effect of eliminating the torque C on the bar 1 ; in other words, as soon as the contacts are separated, the tension spring 10 ceases to oppose the opening of the contacts.

En position ouverte, le mécanisme auxiliaire est à nouveau transparent sur le reste du mécanisme de manoeuvre.In the open position, the auxiliary mechanism is again transparent to the rest of the operating mechanism.

Les figures 4A et 4B illustrent un second mode de réalisation du mécanisme auxiliaire associé à un contact rotatif à double coupure. Les moyens ressorts du mécanisme comprennent un tirant 25 et un ressort de traction 20 mis bout à bout par l'intermédiaire d'un pivot 24. L'extrémité libre du tirant est couplée par une articulation 27 à l'extrémité d'une manivelle 26 solidaire du barreau élémentaire 1. L'extrémité libre du ressort 20 est attachée à un ancrage 22 solidaire du boîtier. En position fermée des contacts, l'ensemble tirant 25/ ressort 20 est rectiligne et forme un angle α faible avec le diamètre du barreau 1 passant par l'articulation 27. Le pivot 24 est au voisinage d'une butée 23 solidaire de la manivelle 26, et disposée de manière coaxiale à l'axe transversal XX′. L'ensemble tirant 25/ressort 20 exerce un couple sur le barreau 1 qui s'oppose à la force développée par les ressorts de pression de contacts 4a,4b sur le barreau 1.FIGS. 4A and 4B illustrate a second embodiment of the auxiliary mechanism associated with a double-break rotary contact. The spring means of the mechanism comprise a tie rod 25 and a tension spring 20 placed end to end by means of a pivot 24. The free end of the tie rod is coupled by a joint 27 to the end of a crank 26 secured to the elementary bar 1. The free end of the spring 20 is attached to an anchor 22 secured to the housing. In the closed position of the contacts, the pulling assembly 25 / spring 20 is rectilinear and forms a small angle α with the diameter of the bar 1 passing through the articulation 27. The pivot 24 is in the vicinity of a stop 23 integral with the crank 26, and arranged coaxially to the transverse axis XX ′. The pulling assembly 25 / spring 20 exerts a torque on the bar 1 which opposes the force developed by the contact pressure springs 4a, 4b on the bar 1.

Dès que le barreau 1 est animé d'un mouvement de rotation par l'intermédiaire des tringles 5a,5b en vue de l'ouverture des contacts, le pivot 24 vient s'appuyer sur la butée 23, ce qui a pour effet de supprimer le couple développé par l'ensemble tirant 25/ressort 20, dès la séparation des contacts et lorsque les contacts sont ouverts, le tirant 25 et le ressort 20 forme alors un angle β au niveau du pivot 24. Inversement, lors du cycle de fermeture des contacts, l'ensemble tirant 25/ressort 20 redevient rectiligne et exerce à nouveau un couple sur le barreau 1 dès que le pivot 24 se sépare de la butée 23, c'est à dire dès que les contacts entrent effectivement en contact.As soon as the bar 1 is driven in a rotational movement via the rods 5a, 5b for the opening of the contacts, the pivot 24 comes to bear on the stop 23, which has the effect of eliminating the torque developed by the tie rod 25 / spring 20 assembly, as soon as the contacts are separated and when the contacts are open, the tie rod 25 and the spring 20 then forms an angle β at the pivot 24. Conversely, during the closing cycle contacts, the assembly pulling 25 / spring 20 becomes rectilinear again and exerts a torque on the bar 1 as soon as the pivot 24 separates from the stop 23, that is to say as soon as the contacts actually come into contact.

L'avantage de ce second mode de réalisation par rapport au premier mode de réalisation réside dans le fait que disposant d'une plage utile angulaire supérieure, de par la manivelle 26, le réglage de l'angle α est moins critique pour le bon fonctionnement du pôle de coupure.The advantage of this second embodiment compared to the first embodiment lies in the fact that, having a greater useful angular range, by the crank 26, the adjustment of the angle α is less critical for the proper functioning. of the breaking pole.

Le troisième mode de réalisation décrit en référence aux figures 5A,5B,5C et 6 est le mode de réalisation préféré de l'invention.The third embodiment described with reference to FIGS. 5A, 5B, 5C and 6 is the preferred embodiment of the invention.

Selon ce mode comme décrit ci-après, les moyens ressorts du mécanisme auxiliaire ne sont plus directement solidaires du barreau 1.According to this mode as described below, the spring means of the auxiliary mechanism are no longer directly integral with the bar 1.

Le boîtier 8 du pôle N est muni d'une platine 31 fixée latéralement par des vis 40 et 41, qui recouvre le dessus du pôle P. La platine 31 porte un axe de rotation 33 selon l'axe YY′ sur lequel est montée une chape 34. La chape 34 est guidée en rotation autour de l'axe YY′ par l'intermédiaire d'une manivelle 36 solidaire du barreau 1; ce guidage est assuré par un pion latéral 37 solidaire de la chape 34, qui vient se loger dans une lumière 38 pratiquée dans la manivelle 36.The housing 8 of the pole N is provided with a plate 31 fixed laterally by screws 40 and 41, which covers the top of the pole P. The plate 31 carries an axis of rotation 33 along the axis YY ′ on which is mounted a yoke 34. The yoke 34 is guided in rotation about the axis YY ′ by means of a crank 36 secured to the bar 1; this guidance is provided by a lateral pin 37 integral with the yoke 34, which is housed in a slot 38 formed in the crank 36.

Les moyens ressorts du mécanisme auxiliaire comprennent un tirant 35 formée par une plaquette et un ressort 30 attachés bout à bout au voisinage de l'axe de rotation 33.The spring means of the auxiliary mechanism comprise a tie rod 35 formed by a plate and a spring 30 attached end to end in the vicinity of the axis of rotation 33.

L'extrémité libre de la plaquette 35 est articulée sur les flancs verticaux de la chape 34 par l'intermédiaire de deux ergots 39, et l'extrémité libre du ressort 30 est attachée à un ancrage 32 de la platine 31.The free end of the plate 35 is articulated on the vertical sides of the yoke 34 by means of two lugs 39, and the free end of the spring 30 is attached to an anchor 32 of the plate 31.

En position de fermeture du pôle, illustrée à la figure 5A, l'ensemble ressort 30/plaquette 35 est rectiligne et forme un angle α avec la droite passant par l'axe de rotation 33 et l'ancrage 32. Le ressort 30 exerce alors un couple qui s'oppose à la force développée par les ressorts de pression de contact 4a et dont la valeur est telle qu'elle laisse subsister un jeu 43 entre le barreau 1 et le contact rotatif 3, qui sert de garde à l'usure des contacts 2a,2b,3a,3b. On retrouve par ailleurs un jeu 44 entre le pion 37 et une première extrémité de la lumière 38.In the closed position of the pole, illustrated in FIG. 5A, the spring 30 / plate 35 assembly is rectilinear and forms an angle α with the straight line passing through the axis of rotation 33 and the anchor 32. The spring 30 then exerts a torque which opposes the force developed by the contact pressure springs 4a and the value of which is such that it leaves a clearance 43 between the bar 1 and the rotary contact 3, which serves as a wear guard contacts 2a, 2b, 3a, 3b. There is also a clearance 44 between the pin 37 and a first end of the lumen 38.

Dès que le barreau 1 est entraîné en rotation par l'intermédiaire des tringles 5a et 5b, comme illustré à la figure 5B, la chape 34 commence son mouvement de rotation autour de l'axe 33, entraînant ainsi la plaquette 35.As soon as the bar 1 is rotated by means of the rods 5a and 5b, as illustrated in FIG. 5B, the yoke 34 begins its rotational movement around the axis 33, thus driving the plate 35.

Dès la séparation des contacts, la plaquette 35 vient se poser sur l'axe 33, ce qui a pour effet de supprimer le couple exercé sur la chape 35, et par voie de conséquence sur la manivelle 36 et sur le barreau 1.As soon as the contacts are separated, the plate 35 comes to rest on the axis 33, which has the effect of eliminating the torque exerted on the yoke 35, and consequently on the crank 36 and on the bar 1.

En position ouverte du pôle N comme illustré à la figure 5C, la plaquette 35 et le ressort forme un angle β et le pion 37 a rejoint la seconde extrémité de la lumière 38.In the open position of the pole N as illustrated in FIG. 5C, the plate 35 and the spring form an angle β and the pin 37 has joined the second end of the light 38.

La lumière 38 pratiquée dans la manivelle 36 présente une partie radiale 38A et une partie tangentielle 38B par rapport à la rotation de la manivelle. La partie radiale 38A de la lumière 38 permet une démultiplication importante de la plage angulaire utile lors de la transition entre un ensemble tirant 35/ressort 30 rectiligne en position fermée, et un ensemble tirant 35/ressort 30 brisé en position ouverte; elle permet aussi de réduire la longueur du ressort 30. La partie tangentielle 38B de la lumière 38 permet au barreau 1 de poursuivre sa course d'ouverture sans avoir à entraîner la chape 34.The light 38 formed in the crank 36 has a radial part 38A and a tangential part 38B relative to the rotation of the crank. The radial part 38A of the light 38 allows a significant reduction in the useful angular range during the transition between a pulling assembly 35 / straight spring 30 in the closed position, and a pulling assembly 35 / spring 30 broken in the open position; it also makes it possible to reduce the length of the spring 30. The tangential part 38B of the light 38 allows the bar 1 to continue its opening stroke without having to drive the yoke 34.

L'agencement du mécanisme auxilaire de ce troisième mode de réalisation est particulièrement avantageux, car il présente un encombrement très faible et ne requiert pas de réglage particulier de l'angle α du fait de la démultiplication de la plage angulaire utile. De plus, le fait que le mécanisme auxiliaire vienne s'adapter sur un pôle standard, c'est à dire un pôle identique à ceux associés aux phases,permet une très grande rationalisation de la fabrication des pôles.The arrangement of the auxiliary mechanism of this third embodiment is particularly advantageous, since it has a very small footprint and does not require any particular adjustment of the angle α due to the reduction in the useful angular range. In addition, the fact that the auxiliary mechanism fits on a standard pole, that is to say a pole identical to those associated with the phases, allows a very great rationalization of the manufacture of the poles.

Dans les modes de réalisation décrits ci-dessus, les moyens de couplage Mc sont réalisés par des barreaux élémentaires solidarisés par l'intermédiaire de deux tringles 5a,5b; on pourra modifier ces moyens de couplage, par exemple en faisant appel à un barreau unique pour les quatre pôles, ou encore un barreau unique pour les trois pôles associés aux phases couplé à un barreau pour le pôle associé au neutre, sans pour autant sortir du cadre de l'invention.In the embodiments described above, the coupling means Mc are produced by elementary bars secured by means of two rods 5a, 5b; these coupling means can be modified, for example by using a single bar for the four poles, or even a single bar for the three poles associated with the phases coupled to a bar for the pole associated with the neutral, without however depart from the scope of the invention.

Claims (11)

Mécanisme de manoeuvre pour appareil électrique de coupure tétrapolaire, notamment un disjoncteur, destiné à manoeuvrer simultanément les quatre pôles (N,P1,P2,P3) disposés côte à côte selon une direction transversale, l'un des deux pôles adjacents au plan de symétrie du disjoncteur étant désigné comme le pôle principal (Pp); le pôle le plus éloigné du pôle principal étant désigné comme le pôle auxiliaire (Pa), le pôle auxiliaire comprenant: - un barreau (1) élémentaire rotatif de commutation guidé en rotation autour d'un premier axe transversal (XX′) - au moins un contact fixe (2a,2b); et - un contact rotatif (3) à simple ou double coupure, couplé en rotation audit barreau (1) correspondant par l'intermédiaire de ressorts de pression de contact (4a,4b);    ledit mécanisme comprenant: - un mécanisme principal (Mp) d'ouverture et de fermeture, associé audit pôle principal; - un mécanisme auxiliaire (Ma) associé audit pôle auxiliaire et comprenant des moyens ressorts, - des moyens de couplage (5a,5b) entre ledit mécanisme principal et ledit mécanisme auxiliaire;    caractérisé par le fait que lesdits moyens ressorts (10,20,30) exercent d'une part un couple (C) sur le barreau (1) dudit pôle auxiliaire qui s'oppose à la force (F) développée par les ressorts de pression de contact (4a,4b) du pôle auxiliaire lorsque l'appareil termine sa course de fermeture et lorsqu'il est fermé, et d'autre part, cessent d'agir sur le barreau (1) dudit pôle auxiliaire lorsque l'appareil a commencer sa course d'ouverture et lorsqu'il est ouvert.Operating mechanism for an electric four-pole breaking device, in particular a circuit breaker, intended to operate simultaneously the four poles (N, P1, P2, P3) arranged side by side in a transverse direction, one of the two poles adjacent to the plane of symmetry the circuit breaker being designated as the main pole (Pp); the pole furthest from the main pole being designated as the auxiliary pole (Pa), the auxiliary pole comprising: - an elementary rotary switching bar (1) guided in rotation about a first transverse axis (XX ′) - at least one fixed contact (2a, 2b); and - a rotary contact (3) with single or double break, coupled in rotation to said corresponding bar (1) by means of contact pressure springs (4a, 4b); said mechanism comprising: - a main opening and closing mechanism (Mp), associated with said main pole; an auxiliary mechanism (Ma) associated with said auxiliary pole and comprising spring means, - coupling means (5a, 5b) between said main mechanism and said auxiliary mechanism; characterized by the fact that said spring means (10,20,30) exert on the one hand a torque (C) on the bar (1) of said auxiliary pole which opposes the force (F) developed by the pressure springs contact (4a, 4b) of the auxiliary pole when the device ends its closing stroke and when it is closed, and on the other hand, cease to act on the bar (1) of said auxiliary pole when the device has start its opening stroke and when open. Mécanisme de manoeuvre selon la revendication 1, caractérisé par le fait que les moyens ressorts (10) incluent un ressort de traction disposé dans un plan perpendiculaire à la direction transversale, dont une première extrémité (11) est couplée en rotation au barreau du pôle auxiliaire et dont la seconde extrémité (12) est ancrée à un point fixe de l'appareil, ledit ressort de traction (10) prenant alternativement les formes suivantes: - d'une part, une ligne droite qui passe au voisinage d'une butée (13) fixe lorsque l'appareil termine sa course de fermeture et lorsqu'il est fermé; - d'autre part, une ligne brisée au niveau de ladite butée (13) lorsque l'appareil a commencé sa course d'ouverture et lorsqu'il est ouvert. Operating mechanism according to claim 1, characterized in that the spring means (10) include a spring tension arranged in a plane perpendicular to the transverse direction, a first end (11) of which is rotatably coupled to the rod of the auxiliary pole and the second end (12) of which is anchored to a fixed point on the apparatus, said tension spring (10) alternately taking the following forms: - On the one hand, a straight line which passes in the vicinity of a stop (13) fixed when the device ends its closing stroke and when it is closed; - On the other hand, a broken line at said stop (13) when the device has started its opening stroke and when it is open. Mécanisme de manoeuvre selon la revendication 2, caractérisé par le fait que ladite première extrémité (11) du ressort de traction est articulée sur une attache solidaire du barreau (1) et disposée sur un rayon du barreau, ladite butée (13) étant également solidaire du barreau et disposée de manière coaxiale au premier axe transversal (XX′).Maneuvering mechanism according to claim 2, characterized in that said first end (11) of the tension spring is articulated on an attachment integral with the bar (1) and disposed on a radius of the bar, said stop (13) also being integral of the bar and arranged coaxially to the first transverse axis (XX ′). Mécanisme de manoeuvre selon la revendication 1, caractérisé par le fait que les moyens ressorts incluent un tirant rigide (25) et un ressort de traction (20) mis bout à bout par l'intermédiaire d'une articulation (24), l'ensemble tirant/ressort étant disposé dans un plan perpendiculaire à la direction transversale, l'extrémité libre (27) du tirant étant couplé en rotation au barreau (1) du pôle auxiliaire, l'extrémité libre (22) du ressort étant ancrée à un point fixe de l'appareil, l'ensemble tirant/ressort prenant alternativement les formes suivantes: - d'une part une ligne droite qui passe au voisinage d'une butée (23) fixe lorsque l'appareil termine sa course d'ouverture et lorsqu'il est fermé, ladite articulation (24) étant à la hauteur de ladite butée; - d'autre part, une ligne brisée au niveau de l'articulation (24) autour de ladite butée (23) lorsque l'appareil a commencé sa course d'ouverture et lorsqu'il est ouvert. Operating mechanism according to claim 1, characterized in that the spring means include a rigid tie rod (25) and a tension spring (20) placed end to end via a joint (24), the assembly tie rod / spring being disposed in a plane perpendicular to the transverse direction, the free end (27) of the tie rod being coupled in rotation to the rod (1) of the auxiliary pole, the free end (22) of the spring being anchored at a point fixed to the device, the pull / spring assembly alternately taking the following forms: - On the one hand a straight line which passes in the vicinity of a fixed stop (23) when the device ends its opening stroke and when it is closed, said articulation (24) being at the height of said stop; - On the other hand, a broken line at the joint (24) around said stop (23) when the device has started its opening stroke and when it is open. Mécanisme de manoeuvre selon la revendication 4, caractérisé par le fait que ladite extrémité libre (27) du tirant est articulée sur un pivot solidaire du barreau (1) et disposée sur un rayon du barreau, ladite butée étant également solidaire du barreau (1) et disposée de manière coaxiale au premier axe transversal (XX′).Operating mechanism according to claim 4, characterized in that said free end (27) of the tie rod is articulated on a pivot secured to the bar (1) and disposed on a radius of the bar, said stop being also secured to the bar (1) and arranged coaxially to the first transverse axis (XX ′). Mécanisme de manoeuvre selon la revendication 4, caractérisé par le fait que ladite extrémité libre du tirant (35) est articulée sur une chape (34) qui est à son tour articulée autour d'un second axe transversal (YY′) de l'appareil, et qui coopère avec une manivelle (36) solidaire en rotation avec le barreau (1), ladite butée (33) étant disposée de manière coaxiale audit second axe transversal (YY′).Operating mechanism according to Claim 4, characterized in that the said free end of the tie rod (35) is articulated on a yoke (34) which is in turn articulated around a second transverse axis (YY ′) of the device , and which cooperates with a crank (36) integral in rotation with the bar (1), said stop (33) being arranged coaxially with said second transverse axis (YY ′). Mécanisme de manoeuvre selon la revendication 6, caractérisé par le fait que la chape (34) est munie d'un pion (37) qui coopère avec une lumière (38) pratiquée dans la manivelle (36).Operating mechanism according to claim 6, characterized in that the yoke (34) is provided with a pin (37) which cooperates with a light (38) formed in the crank (36). Mécanisme de manoeuvre selon la revendication 7, caractérisé par le fait que ladite lumière (38) comprend une partie radiale (38A) et une partie tangentielle (38B) par rapport à la rotation de la manivelle (36).Operating mechanism according to claim 7, characterized in that the said light (38) comprises a radial part (38A) and a tangential part (38B) relative to the rotation of the crank (36). Mécanisme de manoeuvre selon l'une des revendications 6 à 8, caractérisé par le fait que le tirant (35) est formé par une plaquette articulée sur la chape (34) par l'intermédiaire de deux ergots (39), ladite butée (33) étant formée par l'axe d'articulation de la chape autour dudit second axe transversal (Y,Y′).Operating mechanism according to one of claims 6 to 8, characterized in that the tie rod (35) is formed by a plate articulated on the yoke (34) by means of two lugs (39), said stop (33 ) being formed by the axis of articulation of the yoke around said second transverse axis (Y, Y ′). Mécanisme de manoeuvre selon l'une quelconque des revendications 1 à 9, caractérisé par le fait que le barreau élémentaire (1) du pôle auxiliaire est couplé aux barreaux des trois autres pôles.Operating mechanism according to any one of claims 1 to 9, characterized in that the elementary bar (1) of the auxiliary pole is coupled to the bars of the other three poles. Mécanisme de manoeuvre selon l'une quelconque des revendications 1 à 9, caractérisé par le fait que les quatre pôles sont identiques et que les moyens de couplage (Mc) sont formés par deux tringles (5a,5b) diamétralement opposées par rapport au premier axe transversal (XX′) et traversent l'ensemble des barreaux élémentaires de part en part.Operating mechanism according to any one of Claims 1 to 9, characterized in that the four poles are identical and that the coupling means (Mc) are formed by two rods (5a, 5b) diametrically opposite with respect to the first transverse axis (XX ′) and pass through the set of elementary bars right through.
EP92420366A 1991-10-29 1992-10-20 Handling mechanism for tetrapolar circuit breaker Expired - Lifetime EP0540431B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9113457A FR2683089B1 (en) 1991-10-29 1991-10-29 OPERATING MECHANISM FOR TETRAPOLAR CIRCUIT BREAKER.
FR9113457 1991-10-29

Publications (2)

Publication Number Publication Date
EP0540431A1 true EP0540431A1 (en) 1993-05-05
EP0540431B1 EP0540431B1 (en) 1998-01-14

Family

ID=9418505

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92420366A Expired - Lifetime EP0540431B1 (en) 1991-10-29 1992-10-20 Handling mechanism for tetrapolar circuit breaker

Country Status (7)

Country Link
US (1) US5357066A (en)
EP (1) EP0540431B1 (en)
JP (1) JP3352733B2 (en)
KR (1) KR930008898A (en)
DE (1) DE69224035T2 (en)
ES (1) ES2112306T3 (en)
FR (1) FR2683089B1 (en)

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EP1331654A2 (en) * 2002-01-23 2003-07-30 Siemens Aktiengesellschaft Circuit breaker with a drive device to operate a contact unit
EP1331654A3 (en) * 2002-01-23 2005-04-20 Siemens Aktiengesellschaft Circuit breaker with a drive device to operate a contact unit
WO2007088080A1 (en) * 2006-01-31 2007-08-09 Siemens Aktiengesellschaft Contact system for electrical switchgear
EP2463884A1 (en) 2010-12-13 2012-06-13 Schneider Electric Industries SAS Switchgear having a plurality of single-pole phase units and comprising a single mechanism for actuating said phase units
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EP2894646A1 (en) * 2014-01-13 2015-07-15 Schneider Electric Industries SAS Electrical contact device and low-voltage unipolar phase unit including such an electrical contact device
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US9666383B2 (en) 2014-01-13 2017-05-30 Schneider Electric Industries Sas Electrical contact device and low-voltage single-pole phase unit incorporating such an electrical contact device

Also Published As

Publication number Publication date
FR2683089B1 (en) 1993-12-31
EP0540431B1 (en) 1998-01-14
DE69224035T2 (en) 1998-07-02
ES2112306T3 (en) 1998-04-01
US5357066A (en) 1994-10-18
JPH05217486A (en) 1993-08-27
DE69224035D1 (en) 1998-02-19
FR2683089A1 (en) 1993-04-30
KR930008898A (en) 1993-05-22
JP3352733B2 (en) 2002-12-03

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