EP2975628B1 - Signaling device fault in an electric power protection apparatus and apparatus having such a device - Google Patents

Signaling device fault in an electric power protection apparatus and apparatus having such a device Download PDF

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Publication number
EP2975628B1
EP2975628B1 EP15175182.3A EP15175182A EP2975628B1 EP 2975628 B1 EP2975628 B1 EP 2975628B1 EP 15175182 A EP15175182 A EP 15175182A EP 2975628 B1 EP2975628 B1 EP 2975628B1
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EP
European Patent Office
Prior art keywords
fault
indicator
signalling
opening
contacts
Prior art date
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Application number
EP15175182.3A
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German (de)
French (fr)
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EP2975628A1 (en
Inventor
Yann Filsnoel
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Schneider Electric Industries SAS
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Schneider Electric Industries SAS
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Publication of EP2975628A1 publication Critical patent/EP2975628A1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/16—Indicators for switching condition, e.g. "on" or "off"
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
    • H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H2009/0292—Transparent window or opening, e.g. for allowing visual inspection of contact position or contact condition
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage

Definitions

  • the present invention relates to a device for signaling the triggering of an electrical protection device such as a circuit breaker housed in an insulating housing containing a pair of fixed and movable contacts, said movable contact being able to be actuated either manually by a handle mechanically connected to a device for supporting the movable contact, said lever being pivotally mounted between a closed position and an open position of the contacts, either automatically by means of a triggering mechanism comprising a magnetic trigger capable of being activated during the occurrence of a short-circuit fault and a thermal trip device capable of being activated when an overload fault occurs, said movable contact support being mounted in rotation between a position for opening the contacts and a position for closing the contacts and connected to the lever by a transmission means so as to form between the support and the handle a breakable mechanical link, the activation of one of the triggers causing the break of the mechanical link leading to the separation of the contacts, and signaling means called first or said any type of fault intended to signal the state triggered from the device,
  • the device includes means for signaling an automatic trip on fault, but these means do not make it possible to distinguish the type of fault, namely whether it is a fault following an electrical overload or a short circuit.
  • Patents are also known WO 2013114395 and EP 2083434 to report a short circuit fault.
  • auxiliary fault signaling modules signal a trip on fault, but also do not allow a distinction to be made between the two types of fault.
  • Patents are also known US 2,905,795 and US 6,222,433 describing a signaling device comprising the characteristics of the preamble of claim 1.
  • the present invention solves these problems and proposes a device for signaling a fault in an electrical protection device, making it possible to distinguish the type of fault, so as to communicate to the customer more precisely electrical faults in an electrical installation.
  • the present invention relates to a signaling device according to claim 1.
  • the so-called second signaling means comprise a lever, or arm, mounted to rotate relative to the housing of the apparatus, said lever comprising a first end cooperating with the striker of the magnetic trip device and a second end cooperating with an indicator .
  • the so-called first signaling means and the so-called second signaling means respectively comprise a first indicator and a second indicator, said indicators being visible through an opening of the device housing, the appearance of the two indicators through the opening signaling a magnetic type fault while the appearance of a single LED signaling an overload fault.
  • the first and second signaling means are carried by one and the same third light, said third light can take three positions, respectively a first position corresponding to a closed position of the device, a second corresponding position an opening of the contacts following an overload fault, and a third position corresponding to an opening on short circuit.
  • this device comprises means for retaining the so-called third indicator in the intermediate position, or second position, by making it possible for the indicator to move towards the third position on a magnetic trip, by playing on the magnetic forces generated by the striker. of the magnetic release.
  • the stroke given to the so-called third indicator by the rotary lever when a magnetic type is triggered is greater than the stroke given by the trigger mechanism to said indicator during an overload fault.
  • the magnetic forces exerted by the rotary lever will be sufficient to allow the so-called third indicator to pass stops or bumps provided on the indicator and cooperating with edges delimiting the opening of the housing of the device, these stops and bumps being intended to block said indicator in thermal fault position.
  • this device comprises means for resetting the indicator (s) in the device's non-fault position, when the device is closed.
  • the present invention also relates to an electrical protection device comprising a signaling device comprising the previously mentioned characteristics taken alone or in combination.
  • this device comprises a movable assembly comprising the device for supporting the aforementioned movable contact mounted for rotation between the two aforementioned positions and connected to the handle by a transmission means so as to form between the device and the handle a breakable mechanical connection,
  • this device being characterized in that it comprises a signaling device comprising the aforementioned characteristics taken alone or in combination and the aforementioned mobile assembly has a different profile as a function of the speed of opening of the contacts, this speed being different according to that it is a manual opening, or an opening following an electrical fault, this profile being such that said crew actuates the signaling means said first above only during an automatic opening of the contacts following a default.
  • this aforementioned mobile assembly comprises a transmission link articulated by one of its ends on the lever, and connected in an articulated manner by its other end, on a hook, said hook being articulated on the support device of the movable contact, cooperating with the tripping means and comprising means for actuating the signaling means when the contacts open following a fault.
  • this device is a circuit breaker.
  • control device 2 for a miniature electric circuit breaker with molded insulating housing 1, this circuit breaker being of the type shown more completely in the document.
  • EP 1,975,971 This control device 2 includes a support device 3 for the mobile contact 4, said mobile contact 4 being intended to cooperate with a fixed contact 5.
  • An opening is provided in the front face 8 of the housing for the passage of a lever 6 mounted with limited pivoting on an axis 11 of the housing between a closed position in which the contacts 4,5 are closed, and an open position corresponding to the separation of the contacts 4.5.
  • the handle 6 is equipped with an internal base 9 coupled to a transmission link 10 to constitute a toggle device whose articulation 12 ( fig. 16 ) is eccentric relative to the fixed axis 11 of the lever 6.
  • the lever 6 is urged counterclockwise to the open position of the contacts by a return spring (not shown).
  • the fixed contact 5 is secured to the casing of an electromagnetic trip device 13.
  • the mobile contact 4 is fixed to the support device 3 of the mobile contact 4, said support 3 being articulated around a pivot 14, the rotary plate 15 being mounted also rotatable around this pivot 14.
  • a breakable mechanical connection is present between the transmission link 10 and the plate 15 for driving the support device 3 for contacts.
  • the link In the locked position of the trigger mechanism, the link allows manual control of the mechanism by the handle.
  • the displacement of the trigger lever 16 towards the triggered position under the action of the triggers, causes the momentary rupture of the mechanical link, causing the automatic triggering of the mechanism, independently of the lever 6.
  • the trigger lever 16 is associated with a spring recall 27 intended to ensure the automatic restoration of the mechanical connection when the lever 6 is actuated towards the open position, following a triggering of the mechanism on fault.
  • This breakable mechanical connection comprises a hook 19 pivotally mounted on an axis 20 of the plate 15. Opposite this axis, a spout 21 of the hook 19 cooperates in the locked position of the connection with a retaining notch 22 located on the arm of the trigger lever 16.
  • the transmission link 10 is coupled to the hook 19 and to the plate 15 at a point of articulation 23 capable of moving when triggered in two consecutive openings of the plate 15. This point of articulation 23 is located between the articulation axis 20 of the hook 19 on the plate and the spout 21 of the hanging hook.
  • the link constitutes a step-down stage in the kinematic chain of the mechanism, allowing a reduction in the tripping force coming from the magneto-thermal trigger, as described more fully in the patent. EP 1975971 .
  • the balance of forces exerted by the link 10 on the mechanism is broken.
  • the plate 15 rotates around its axis 14 and it opens the contacts 4.5.
  • the opening 25 provided inside the hook 19 authorizes the rotation of the hook 19 around the axis 20 and this opening 25 of the hook as well as the openings of the plate 15 authorize the rotation of the plate, the lever being still held in the closed contact position.
  • the lever spring returns the latter to the open contact position and the link brings the hook back to the initial position.
  • a spring for biasing the hook and resetting the bar places them in a position allowing the hook 19 to be locked on the bar 16 when the lever 6 is actuated to close the contacts 4,5.
  • the openings provided in the plate 15 participate in the guiding of the link 10 so as to bring it back to the support position on the plate.
  • This control device 2 also includes means S for signaling the tripped state of the electrical protection device following a short circuit or an overload, these means being inactive during manual opening.
  • means S for signaling the tripped state of the electrical protection device following a short circuit or an overload, these means being inactive during manual opening.
  • a particular embodiment of these means is more particularly described in the patent EP 1,542,253 .
  • this hook is articulated on the mobile contact support device, cooperates with the triggering means and comprises means for actuating the aforementioned signaling means, in this case a so-called first indicator light 32, during an opening following a defect of any type.
  • the handle 6 and the support device 3 of the movable contact 4 being each returned to the open position by a spring, the inertia of the handle, of the hook and of the device and the return force of the springs of the handle and of the support device, are determined so that the speed of rotation of the hook when opening on fault is much higher than the speed of rotation of the handle.
  • control device also includes so-called second T signaling means intended to signal only the triggered state of the device on short circuit.
  • second T signaling means comprise an arm 34 in rotation relative to an axis 14 corresponding to the axis of the above-mentioned mechanics, this arm 34 being mechanically connected by one of its ends to the striker 28 of the triggering means magnetic 13 and acting by its opposite end on a so-called second indicator 33.
  • the two LEDs 32,33 are visible through the opening 7 of the unit's housing 1, indicating respectively for the LED 32 located furthest to the right, tripping regardless of the type of fault, and for the LED located on further to the left 33, a magnetic type trigger.
  • This apparent configuration of the two LEDs 32,33 indicates that a trip of magnetic origin has taken place.
  • the so-called first indicator 32 located to the right has been moved by the hook when the rotating plate 15 has rotated having caused the hook to rotate rapidly, as this is more fully explained in the document EP 1,542,253 .
  • the leftmost indicator 33, said second has been moved by means of the aforementioned rotary lever 34 having been actuated during the translation of the striker 28 on a short-circuit fault.
  • first S signaling means or so-called any type of fault will be explained in the following with particular reference to the figure 5 .
  • the deflection of the bimetallic strip 18 drives the drawer 30, which drawer drives the rotating bar 16, which results in the unlocking of the bar relative to the hook 19.
  • the hook 19 goes into rotation under the force of the rod 10, and the rotation of the hook 19 causes the translation of the right indicator 32 towards an apparent fault position.
  • the striker 28 drives the bar 16 in rotation, which causes the translation of the right-hand indicator 32 in the same manner as previously to an apparent fault position.
  • the left indicator 33 of the second signaling means T is driven only in the case of a magnetic fault by rotation of the lever 34, which is driven by the striker 28 of the magnetic trip device 13.
  • the appearance of a single indicator 32 through the opening indicates the occurrence of a thermal fault, while the appearance of the two indicators 32.33 indicates the occurrence of a magnetic fault .
  • the Figures 9, 10 and 11 illustrate the case of the occurrence of a fault of magnetic origin.
  • the second indicator 33 has been activated by the lever 34 driven by the striker 28, the first indicator 32 also being in the default position.
  • this appearance of the two LEDs 32.33 makes it possible to signal a fault of magnetic origin. We can thus distinguish a defect of thermal origin from a defect of magnetic origin.
  • the plate 15 comprises a spout 35 capable of cooperating with a part 36 of the indicator lights 32.33 extending substantially perpendicular to the plane of said indicator lights, so as to recall these two indicator lights in the non-fault position during closing the device after opening on fault.
  • the figures 14 to 24 illustrate another embodiment of the signaling device D according to the invention in which this device comprises a single indicator lamp 37 with three positions for performing the two functions previously performed by the two indicator lamps of the previous embodiment, namely signaling any type of faults and the signaling function of a single magnetic fault.
  • this indicator 37 can take three positions, namely a first position called position 0 corresponding to a non-fault position, a second position called a thermal fault in which this indicator has moved 2.5 mm relative to the first position, and a third position corresponding to a magnetic fault position in which the indicator has moved 2.5 mm from the second position, which means that it is at a distance of 5 mm from the O position.
  • the indicator is in the so-called 0 position corresponding to a closed position of the device.
  • the signaling means S In the event of a thermal fault occurring, the signaling means S, called any type of fault, bring the indicator in the second position at a distance of 2.5 mm from the first.
  • the operating sequence during a magnetic trip is the same as before, except for the fact that the light 37 must be retained in this position by making it possible for the single light to move on a magnetic trip towards the third position, by lever 34, by playing on the high magnetic forces, as illustrated on the figures 23 and 24 .
  • the stroke given to the indicator 37 by the lever 34 is greater than the stroke given by the hook 19 to the indicator 37.
  • the magnetic forces will be sufficient to allow the indicator to pass the stops 38 or bumps of the thermal fault position. And these same stops will be sufficient to block the indicator in the thermal fault position whatever the energy given to the hook by the indicator.
  • a device has therefore been produced which makes it possible to signal a trip on fault by distinguishing a thermal fault from a magnetic fault, enabling the electrical faults in an electrical installation to be communicated to the customer more precisely.

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  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Description

DOMAINE TECHNIQUETECHNICAL AREA

La présente invention concerne un dispositif de signalisation du déclenchement d'un appareil de protection électrique tel un disjoncteur logé dans un boîtier isolant renfermant une paire de contacts fixe et mobile, ledit contact mobile pouvant être actionné soit manuellement par une manette reliée mécaniquement à un dispositif de support du contact mobile, ladite manette étant montée à pivotement entre une position de fermeture et une position d'ouverture des contacts, soit automatiquement par l'intermédiaire d'un mécanisme de déclenchement comportant un déclencheur magnétique apte à être activé lors de la survenue d'un défaut de court-circuit et un déclencheur thermique apte à être activé lors de la survenue d'un défaut de surcharge, ledit support de contact mobile étant monté en rotation entre une position d'ouverture des contacts et une position de fermeture des contacts et relié à la manette par un moyen de transmission de manière à former entre le support et la manette une liaison mécanique brisable, l'activation de l'un des déclencheurs entraînant la rupture de la liaison mécanique entraînant la séparation des contacts, et des moyens de signalisation dits premiers ou dits tout type de défaut destinés à signaler l'état déclenché de l'appareil,The present invention relates to a device for signaling the triggering of an electrical protection device such as a circuit breaker housed in an insulating housing containing a pair of fixed and movable contacts, said movable contact being able to be actuated either manually by a handle mechanically connected to a device for supporting the movable contact, said lever being pivotally mounted between a closed position and an open position of the contacts, either automatically by means of a triggering mechanism comprising a magnetic trigger capable of being activated during the occurrence of a short-circuit fault and a thermal trip device capable of being activated when an overload fault occurs, said movable contact support being mounted in rotation between a position for opening the contacts and a position for closing the contacts and connected to the lever by a transmission means so as to form between the support and the handle a breakable mechanical link, the activation of one of the triggers causing the break of the mechanical link leading to the separation of the contacts, and signaling means called first or said any type of fault intended to signal the state triggered from the device,

ETAT DE LA TECHNIQUE ANTERIEURESTATE OF THE PRIOR ART

On connaît le document EP 1 542 253 décrivant un dispositif de signalisation du genre précédemment mentionné. Dans ce document, l'appareil comporte des moyens pour signaler un déclenchement automatique sur défaut, mais ces moyens ne permettent pas de distinguer le type de défaut à savoir s'il s'agit d'un défaut consécutif à une surcharge électrique ou bien à un court-circuit.We know the document EP 1,542,253 describing a signaling device of the kind previously mentioned. In this document, the device includes means for signaling an automatic trip on fault, but these means do not make it possible to distinguish the type of fault, namely whether it is a fault following an electrical overload or a short circuit.

On connaît également les brevets WO 2013114395 et EP 2083434 permettant de signaler un défaut de court-circuit.Patents are also known WO 2013114395 and EP 2083434 to report a short circuit fault.

Ces dispositifs de signalisation ne permettent pas de distinguer un défaut d'origine thermique d'un défaut d'origine magnétique.These signaling devices do not make it possible to distinguish a fault of thermal origin from a fault of magnetic origin.

De même, les modules auxiliaires actuels de signalisation de défaut signalent un déclenchement sur défaut, mais ne permettent pas non plus de réaliser une distinction entre les deux types de défaut.Likewise, the current auxiliary fault signaling modules signal a trip on fault, but also do not allow a distinction to be made between the two types of fault.

On connaît également les brevets US 2 905 795 et US 6 222 433 décrivant un dispositif de signalisation comportant les caractéristiques du préambule de la revendication 1.Patents are also known US 2,905,795 and US 6,222,433 describing a signaling device comprising the characteristics of the preamble of claim 1.

EXPOSE DE L'INVENTIONSTATEMENT OF THE INVENTION

La présente invention résout ces problèmes et propose un dispositif de signalisation d'un défaut dans un appareil de protection électrique, permettant de distinguer le type de défaut, de manière à communiquer au client de façon plus précise les défauts électriques dans une installation électrique.The present invention solves these problems and proposes a device for signaling a fault in an electrical protection device, making it possible to distinguish the type of fault, so as to communicate to the customer more precisely electrical faults in an electrical installation.

A cet effet, la présente invention a pour objet un dispositif de signalisation selon la revendication 1.To this end, the present invention relates to a signaling device according to claim 1.

Selon une caractéristique particulière, les moyens de signalisations dits seconds comprennent un levier, ou bras, monté rotatif par rapport au boîtier de l'appareil, ledit levier comportant une première extrémité coopérant avec le percuteur du déclencheur magnétique et une seconde extrémité coopérant avec un voyant. Selon une réalisation particulière, les moyens de signalisation dits premiers et les moyens de signalisation dits seconds comportent respectivement un premier voyant et un second voyant, lesdits voyants étant visibles à travers une ouverture du boîtier de l'appareil, l'apparition des deux voyants à travers l'ouverture signalant un défaut du type magnétique tandis que l'apparition d'un seul voyant signalant un défaut de surcharge.According to a particular characteristic, the so-called second signaling means comprise a lever, or arm, mounted to rotate relative to the housing of the apparatus, said lever comprising a first end cooperating with the striker of the magnetic trip device and a second end cooperating with an indicator . According to a particular embodiment, the so-called first signaling means and the so-called second signaling means respectively comprise a first indicator and a second indicator, said indicators being visible through an opening of the device housing, the appearance of the two indicators through the opening signaling a magnetic type fault while the appearance of a single LED signaling an overload fault.

Selon une autre réalisation, les premiers et seconds moyens de signalisation sont portés par un seul et même voyant dit troisième, ledit voyant dit troisième pouvant prendre trois positions, respectivement une première position correspondant à une position fermée de l'appareil, une seconde position correspondant à une ouverture des contacts suite à un défaut de surcharge, et une troisième position correspondant à une ouverture sur court-circuit.According to another embodiment, the first and second signaling means are carried by one and the same third light, said third light can take three positions, respectively a first position corresponding to a closed position of the device, a second corresponding position an opening of the contacts following an overload fault, and a third position corresponding to an opening on short circuit.

Selon une caractéristique particulière, ce dispositif comporte des moyens pour retenir le voyant dit troisième en position intermédiaire, ou seconde position, en rendant possible le mouvement du voyant vers la troisième position sur un déclenchement magnétique, en jouant sur les efforts magnétiques générés par le percuteur du déclencheur magnétique.According to a particular characteristic, this device comprises means for retaining the so-called third indicator in the intermediate position, or second position, by making it possible for the indicator to move towards the third position on a magnetic trip, by playing on the magnetic forces generated by the striker. of the magnetic release.

Selon une autre caractéristique, la course donnée au voyant dit troisième par le levier rotatif lors d'un déclenchement du type magnétique, est plus importante que la course donnée par le mécanisme de déclenchement audit voyant lors d'un défaut de surcharge.According to another characteristic, the stroke given to the so-called third indicator by the rotary lever when a magnetic type is triggered, is greater than the stroke given by the trigger mechanism to said indicator during an overload fault.

Selon une autre caractéristique, les efforts magnétiques exercés par le levier rotatif seront suffisants pour permettre au voyant dit troisième de passer des butées ou bosses prévues sur le voyant et coopérant avec des bords délimitant l'ouverture du boîtier de l'appareil, ces butées et bosses étant destinées à bloquer ledit voyant en position de défaut thermique.According to another characteristic, the magnetic forces exerted by the rotary lever will be sufficient to allow the so-called third indicator to pass stops or bumps provided on the indicator and cooperating with edges delimiting the opening of the housing of the device, these stops and bumps being intended to block said indicator in thermal fault position.

Selon une autre caractéristique, ce dispositif comporte des moyens de réinitialisation du (des) voyant (s) en position de non défaut de l'appareil, à la fermeture de l'appareil.According to another characteristic, this device comprises means for resetting the indicator (s) in the device's non-fault position, when the device is closed.

La présente invention a encore pour objet un appareil de protection électrique comportant un dispositif de signalisation comportant les caractéristiques précédemment mentionnées prises seules ou en combinaison.The present invention also relates to an electrical protection device comprising a signaling device comprising the previously mentioned characteristics taken alone or in combination.

Avantageusement, cet appareil comporte un équipage mobile comprenant le dispositif de support du contact mobile précité monté à rotation entre les deux positions précitées et relié à la manette par un moyen de transmission de manière à former entre le dispositif et la manette une liaison mécanique brisable, cet appareil étant caractérisé en ce qu'il comporte un dispositif de signalisation comportant les caractéristiques précédemment mentionnées prises seules ou en combinaison et l'équipage mobile précité présente un profil différent en fonction de la vitesse d'ouverture des contacts, cette vitesse étant différente selon qu'il s'agit d'une ouverture manuelle, ou d'une ouverture suite à un défaut électrique, ce profil étant tel que ledit équipage actionne le moyen de signalisation dit premier précité seulement lors d'une ouverture automatique des contacts suite à un défaut.Advantageously, this device comprises a movable assembly comprising the device for supporting the aforementioned movable contact mounted for rotation between the two aforementioned positions and connected to the handle by a transmission means so as to form between the device and the handle a breakable mechanical connection, this device being characterized in that it comprises a signaling device comprising the aforementioned characteristics taken alone or in combination and the aforementioned mobile assembly has a different profile as a function of the speed of opening of the contacts, this speed being different according to that it is a manual opening, or an opening following an electrical fault, this profile being such that said crew actuates the signaling means said first above only during an automatic opening of the contacts following a default.

Selon une caractéristique particulière, cet équipage mobile précité comprend une biellette de transmission articulée par l'une de ses extrémités sur la manette, et reliée de manière articulée par son autre extrémité, sur un crochet, ledit crochet étant articulé sur le dispositif de support du contact mobile, coopérant avec le moyen de déclenchement et comportant un moyen pour actionner le moyen de signalisation lors d'une ouverture des contacts suite à un défaut.According to a particular characteristic, this aforementioned mobile assembly comprises a transmission link articulated by one of its ends on the lever, and connected in an articulated manner by its other end, on a hook, said hook being articulated on the support device of the movable contact, cooperating with the tripping means and comprising means for actuating the signaling means when the contacts open following a fault.

Selon une caractéristique particulière de l'invention, cet appareil est un disjoncteur.According to a particular characteristic of the invention, this device is a circuit breaker.

BREVE DESCRIPTION DES DESSINS :BRIEF DESCRIPTION OF THE DRAWINGS:

Mais d'autres avantages et caractéristiques de l'invention apparaîtront mieux dans la description détaillée qui suit et se réfère aux dessins annexés donnés uniquement à titre d'exemple et dans lesquels :

  • Les figures 1 à 13 sont des vues partielles en perspective ou de côté, d'un dispositif de commande d'un appareil de protection électrique comportant un dispositif de signalisation de défaut selon une première réalisation de l'invention, tandis que les figures 14 à 24 sont des vues partielles, en perspective ou de côté, d'un même appareil comportant un dispositif de signalisation selon une seconde réalisation de l'invention.
  • Les figures 1 et 2 illustrent plus particulièrement les deux voyants du dispositif de signalisation selon l'invention, destinés à coopérer avec une ouverture du boîtier,
  • Les figures 3 et 4 illustrent respectivement le moyen de signalisation dit tout type de défaut et le moyen de signalisation sur déclenchement magnétique, ces deux moyens de signalisation constituant le dispositif de signalisation selon l'invention,
  • Les figures 5 à 8 illustrent plus particulièrement le fonctionnement des moyens de signalisation dits premiers ou tout type de défaut,
  • Les figures 9 à 11 illustrent plus particulièrement le fonctionnement des moyens de signalisation sur déclenchement magnétique, dits seconds,
  • Les figures 12 et 13 illustrent la réinitialisation des deux voyants en position non défaut, lors de la fermeture de l'appareil,
  • Les figures 14 et 15 illustrent le principe d'un voyant à trois positions, selon la seconde réalisation du dispositif de signalisation selon l'invention,
  • Les figures 16 et 17 illustrent ce même dispositif de signalisation en position 0 du voyant correspondant à une position fermée de l'appareil,
  • Les figures 18 et 19 illustrent plus particulièrement le fonctionnement des moyens de signalisation dits tout type de défaut selon cette seconde réalisation de l'invention, lors d'un déclenchement d'origine magnétique ou thermique,
  • Les figures 20 et 21 illustrent plus particulièrement un déclenchement suite à un défaut d'origine thermique,
  • La figure 22 illustre, dans une vue en plan, le voyant selon une autre réalisation de l'invention, et
  • Les figures 23 et 24 illustrent plus particulièrement un déclenchement suite à un défaut d'origine magnétique.
However, other advantages and characteristics of the invention will appear more clearly in the detailed description which follows and which refers to the appended drawings given solely by way of example and in which:
  • The Figures 1 to 13 are partial perspective or side views of a control device of an electrical protection device comprising a fault signaling device according to a first embodiment of the invention, while the figures 14 to 24 are partial views, in perspective or from the side, of the same device comprising a signaling device according to a second embodiment of the invention.
  • The Figures 1 and 2 more particularly illustrate the two indicators of the signaling device according to the invention, intended to cooperate with an opening of the housing,
  • The figures 3 and 4 respectively illustrate the signaling means called any type of fault and the signaling means on magnetic trip, these two signaling means constituting the signaling device according to the invention,
  • The Figures 5 to 8 more particularly illustrate the operation of the so-called first signaling means or any type of fault,
  • The Figures 9 to 11 more particularly illustrate the operation of the signaling means on magnetic triggering, called seconds,
  • The figures 12 and 13 illustrate the resetting of the two LEDs to the non-fault position, when the device is closed,
  • The Figures 14 and 15 illustrate the principle of a three-position indicator light, according to the second embodiment of the signaling device according to the invention,
  • The Figures 16 and 17 illustrate this same signaling device in position 0 of the indicator corresponding to a closed position of the device,
  • The Figures 18 and 19 more particularly illustrate the operation of the signaling means known as any type of fault according to this second embodiment of the invention, during a trip of magnetic or thermal origin,
  • The figures 20 and 21 more particularly illustrate a trip following a thermal fault,
  • The figure 22 illustrates, in a plan view, the sight glass according to another embodiment of the invention, and
  • The figures 23 and 24 more particularly illustrate a trip following a fault of magnetic origin.

EXPOSE DETAILLE DE DEUX MODES DE REALISATION PARTICULIERS DE L'INVENTIONDETAILED DESCRIPTION OF TWO PARTICULAR EMBODIMENTS OF THE INVENTION

Sur les figures, on voit une partie du dispositif de commande d'un disjoncteur électrique miniature à boîtier isolant moulé 1, ce disjoncteur étant du type représenté plus complètement dans le document EP 1 975 971 . Ce dispositif de commande 2 comporte un dispositif de support 3 du contact mobile 4, ledit contact mobile 4 étant destiné à coopérer avec un contact fixe 5.In the figures, we see a part of the control device for a miniature electric circuit breaker with molded insulating housing 1, this circuit breaker being of the type shown more completely in the document. EP 1,975,971 . This control device 2 includes a support device 3 for the mobile contact 4, said mobile contact 4 being intended to cooperate with a fixed contact 5.

Une ouverture est prévue dans la face avant 8 du boîtier pour le passage d'une manette 6 montée à pivotement limité sur un axe 11 du boîtier entre une position de fermeture dans laquelle les contacts 4,5 sont fermés, et une position d'ouverture correspondant à la séparation des contacts 4,5.An opening is provided in the front face 8 of the housing for the passage of a lever 6 mounted with limited pivoting on an axis 11 of the housing between a closed position in which the contacts 4,5 are closed, and an open position corresponding to the separation of the contacts 4.5.

La manette 6 est équipée d'une embase interne 9 accouplée à une biellette de transmission 10 pour constituer un dispositif à genouillère dont l'articulation 12 (fig.16) se trouve excentrée par rapport à l'axe fixe 11 de la manette 6.The handle 6 is equipped with an internal base 9 coupled to a transmission link 10 to constitute a toggle device whose articulation 12 ( fig. 16 ) is eccentric relative to the fixed axis 11 of the lever 6.

La manette 6 est sollicitée dans le sens trigonométrique vers la position d'ouverture des contacts par un ressort de rappel (non représenté). Le contact fixe 5 est solidarisé à la carcasse d'un déclencheur électromagnétique 13. Le contact mobile 4 est fixé au dispositif de support 3 du contact mobile 4, ledit support 3 étant articulé autour d'un pivot 14, la platine rotative 15 étant montée rotative également autour de ce pivot 14.The lever 6 is urged counterclockwise to the open position of the contacts by a return spring (not shown). The fixed contact 5 is secured to the casing of an electromagnetic trip device 13. The mobile contact 4 is fixed to the support device 3 of the mobile contact 4, said support 3 being articulated around a pivot 14, the rotary plate 15 being mounted also rotatable around this pivot 14.

Un levier de déclenchement 16 piloté par le percuteur 28 du déclencheur électromagnétique 13 et le déclencheur thermique ou bilame 18 ou un auxiliaire externe, est monté à pivotement sur un axe 17 (fig.18) porté par la platine 15 avec un décalage prédéterminé par rapport au pivot précité 14.A trigger lever 16 controlled by the striker 28 of the electromagnetic trigger 13 and the thermal or bimetal trigger 18 or an external auxiliary, is pivotally mounted on an axis 17 ( fig. 18 ) carried by the plate 15 with a predetermined offset relative to the aforementioned pivot 14.

Une liaison mécanique brisable est présente entre la biellette de transmission 10 et la platine 15 d'entraînement du dispositif de support 3 de contacts.A breakable mechanical connection is present between the transmission link 10 and the plate 15 for driving the support device 3 for contacts.

En position verrouillée du mécanisme de déclenchement, la liaison autorise la commande manuelle du mécanisme par la manette. Le déplacement du levier de déclenchement 16 vers la position déclenchée sous l'action des déclencheurs, provoque la rupture momentanée de la liaison mécanique, entraînant le déclenchement automatique du mécanisme, indépendamment de la manette 6. Le levier de déclenchement 16 est associé à un ressort de rappel 27 destiné à assurer le rétablissement automatique de la liaison mécanique lorsque la manette 6 est actionnée vers la position d'ouverture, suite à un déclenchement du mécanisme sur défaut.In the locked position of the trigger mechanism, the link allows manual control of the mechanism by the handle. The displacement of the trigger lever 16 towards the triggered position under the action of the triggers, causes the momentary rupture of the mechanical link, causing the automatic triggering of the mechanism, independently of the lever 6. The trigger lever 16 is associated with a spring recall 27 intended to ensure the automatic restoration of the mechanical connection when the lever 6 is actuated towards the open position, following a triggering of the mechanism on fault.

Cette liaison mécanique brisable comporte un crochet 19 monté à pivotement sur un axe 20 de la platine 15. A l'opposé de cet axe, un bec 21 du crochet 19 coopère en position verrouillée de la liaison avec un cran de retenue 22 situé sur le bras du levier de déclenchement 16. La biellette de transmission 10 est accouplée au crochet 19 et à la platine 15 en un point d'articulation 23 susceptible de se déplacer lors du déclenchement dans deux ouvertures consécutives de la platine 15. Ce point d'articulation 23 est situé entre l'axe d'articulation 20 du crochet 19 sur la platine et le bec 21 du crochet d'accrochage. La liaison constitue un étage démultiplicateur dans la chaîne cinématique du mécanisme, autorisant une réduction de l'effort de déclenchement en provenance du déclencheur magnéto-thermique, tel que ceci est décrit de manière plus complète dans le brevet EP 1975971 .This breakable mechanical connection comprises a hook 19 pivotally mounted on an axis 20 of the plate 15. Opposite this axis, a spout 21 of the hook 19 cooperates in the locked position of the connection with a retaining notch 22 located on the arm of the trigger lever 16. The transmission link 10 is coupled to the hook 19 and to the plate 15 at a point of articulation 23 capable of moving when triggered in two consecutive openings of the plate 15. This point of articulation 23 is located between the articulation axis 20 of the hook 19 on the plate and the spout 21 of the hanging hook. The link constitutes a step-down stage in the kinematic chain of the mechanism, allowing a reduction in the tripping force coming from the magneto-thermal trigger, as described more fully in the patent. EP 1975971 .

Le fonctionnement du dispositif de commande va être décrit ci-après en référence aux figures.The operation of the control device will be described below with reference to the figures.

Lorsque le dispositif de commande 2 est dans une position des contacts ouverts 4,5, la manette 6 est en position d'ouverture.When the control device 2 is in a position of the open contacts 4,5, the lever 6 is in the open position.

Lorsque la manette 6 est actionnée pour réaliser la fermeture des contacts, celle-ci déplace la biellette 10 qui vient en appui sur la platine 15 et sur le crochet 19. Le crochet 19 est verrouillé sur la barre (ou levier) de déclenchement 16.When the lever 6 is actuated to close the contacts, the latter moves the link 10 which comes to bear on the plate 15 and on the hook 19. The hook 19 is locked on the trigger bar (or lever) 16.

La biellette 10 en appui sur la platine 15 et sur le crochet 19, fait pivoter la platine 15 autour de son axe 14 jusqu'à la fermeture des contacts 4,5.The rod 10 resting on the plate 15 and on the hook 19, pivots the plate 15 around its axis 14 until the contacts 4,5 are closed.

La biellette poursuit sa course jusqu'au franchissement du point mort de la genouillère formée par la manette 6 et la biellette 10. Puis, le mécanisme prend la position d'équilibre qui maintient les contacts fermés 4,5.The link continues its race until the dead center of the toggle joint formed by the lever 6 and the link 10 is crossed. Then, the mechanism assumes the equilibrium position which keeps the contacts closed 4.5.

Pour ouvrir les contacts 4,5 manuellement, la manette 6 est actionnée jusqu'à ce qu'elle franchisse le point mort de la genouillère dans l'autre sens. Le mécanisme rejoint alors la position d'équilibre, les contacts étant ouverts, lorsque la manette 6 atteint la fin de sa course.To open the contacts 4,5 manually, the lever 6 is actuated until it crosses the neutral point of the toggle in the other direction. The mechanism then returns to the equilibrium position, the contacts being open, when the lever 6 reaches the end of its travel.

Lorsque les contacts 4,5 sont fermés et que la barre de déclenchement 16 est actionnée, le crochet 19 est déverrouillé, mais la manette 6 ne revient pas tout de suite vers sa position d'ouverture.When the contacts 4,5 are closed and the trip bar 16 is actuated, the hook 19 is unlocked, but the lever 6 does not immediately return to its open position.

L'équilibre des forces exercées par la biellette 10 sur le mécanisme est rompu. La platine 15 tourne autour de son axe 14 et elle ouvre les contacts 4,5. L'ouverture 25 prévue à l'intérieur du crochet 19, autorise la rotation du crochet 19 autour de l'axe 20 et cette ouverture 25 du crochet ainsi que les ouvertures de la platine 15, autorisent la rotation de la platine, la manette étant encore maintenue en position des contacts fermés.The balance of forces exerted by the link 10 on the mechanism is broken. The plate 15 rotates around its axis 14 and it opens the contacts 4.5. The opening 25 provided inside the hook 19 authorizes the rotation of the hook 19 around the axis 20 and this opening 25 of the hook as well as the openings of the plate 15 authorize the rotation of the plate, the lever being still held in the closed contact position.

Puis, le ressort de la manette ramène cette dernière en position contacts ouverts et la biellette ramène le crochet en position initiale. Un ressort de polarisation du crochet et de réarmement de la barre les replace dans une position permettant le verrouillage du crochet 19 sur la barre 16 lorsque la manette 6 sera actionnée pour fermer les contacts 4,5. Les ouvertures prévues dans la platine 15 participent au guidage de la biellette 10 de façon à la ramener en position d'appui sur la platine.Then, the lever spring returns the latter to the open contact position and the link brings the hook back to the initial position. A spring for biasing the hook and resetting the bar places them in a position allowing the hook 19 to be locked on the bar 16 when the lever 6 is actuated to close the contacts 4,5. The openings provided in the plate 15 participate in the guiding of the link 10 so as to bring it back to the support position on the plate.

Ce dispositif de commande 2 comporte également des moyens de signalisation S de l'état déclenché de l'appareil de protection électrique suite à un court-circuit ou une surcharge, ces moyens étant inactifs lors d'une ouverture manuelle. Une réalisation particulière de ces moyens est plus particulièrement décrite dans le brevet EP 1 542 253 .This control device 2 also includes means S for signaling the tripped state of the electrical protection device following a short circuit or an overload, these means being inactive during manual opening. A particular embodiment of these means is more particularly described in the patent EP 1,542,253 .

Selon une réalisation particulière de ces moyens de signalisation décrite dans le brevet EP 1 542 253 , ce crochet est articulé sur le dispositif de support du contact mobile, coopère avec le moyen de déclenchement et comporte un moyen pour actionner le moyen de signalisation précité, en l'occurrence un voyant dit premier 32, lors d'une ouverture suite à un défaut de tout type. La manette 6 et le dispositif de support 3 du contact mobile 4 étant rappelés chacun en position d'ouverture par un ressort, l'inertie de la manette, du crochet et du dispositif et la force de rappel des ressorts respectivement de la manette et du dispositif de support, sont déterminés de façon que la vitesse de rotation du crochet lors d'une ouverture sur défaut soit beaucoup plus élevée que la vitesse de rotation de la manette.According to a particular embodiment of these signaling means described in the patent EP 1,542,253 , this hook is articulated on the mobile contact support device, cooperates with the triggering means and comprises means for actuating the aforementioned signaling means, in this case a so-called first indicator light 32, during an opening following a defect of any type. The handle 6 and the support device 3 of the movable contact 4 being each returned to the open position by a spring, the inertia of the handle, of the hook and of the device and the return force of the springs of the handle and of the support device, are determined so that the speed of rotation of the hook when opening on fault is much higher than the speed of rotation of the handle.

Selon l'invention, le dispositif de commande comporte également des moyens de signalisation dits seconds T destinés à ne signaler que l'état déclenché de l'appareil sur court-circuit.According to the invention, the control device also includes so-called second T signaling means intended to signal only the triggered state of the device on short circuit.

Ces moyens de signalisation dits seconds T comprennent un bras 34 en rotation par rapport à un axe 14 correspondant à l'axe de la mécanique précédemment cité, ce bras 34 étant relié mécaniquement par l'une de ses extrémités au percuteur 28 des moyens de déclenchement magnétiques 13 et agissant par son extrémité opposée sur un voyant dit second 33.These so-called second T signaling means comprise an arm 34 in rotation relative to an axis 14 corresponding to the axis of the above-mentioned mechanics, this arm 34 being mechanically connected by one of its ends to the striker 28 of the triggering means magnetic 13 and acting by its opposite end on a so-called second indicator 33.

Le fonctionnement du dispositif de signalisation selon l'invention comprenant les premier S et second T moyens de signalisation précités, va être décrit dans ce qui suit en en référence aux figures.The operation of the signaling device according to the invention comprising the first S and second T aforementioned signaling means will be described in the following with reference to the figures.

Sur les figures 1 à 4, les deux voyants 32,33 sont apparents à travers l'ouverture 7 du boîtier 1 de l'appareil, indiquant respectivement pour le voyant 32 situé le plus à droite, un déclenchement sans distinction du type de défaut, et pour le voyant situé le plus à gauche 33, un déclenchement de type magnétique. Cette configuration apparente des deux voyants 32,33 indique qu'un déclenchement d'origine magnétique a eu lieu. Le voyant dit premier 32 situé le plus à droite a été déplacé par le crochet lors de la rotation de la platine 15 en rotation ayant entraîné le crochet dans un rapide mouvement de rotation, comme ceci est plus amplement expliqué dans le document EP 1 542 253 . Le voyant le plus à gauche 33, dit second, a été déplacé par l'intermédiaire du levier rotatif précité 34 ayant été actionné lors de la translation du percuteur 28 sur un défaut de court-circuit. Le fonctionnement des moyens de signalisation dits premiers S ou dits tout type de défaut, va être expliqué dans ce qui suit en référence en particulier à la figure 5. Ainsi, lors d'un défaut d'origine thermique, la déflexion du bilame 18 entraîne le tiroir 30, lequel tiroir entraîne la barre en rotation 16, ce qui entraîne le déverrouillage de la barre par rapport au crochet 19. Puis, le crochet 19 part en rotation sous l'effort de la biellette 10, et la rotation du crochet 19 entraîne la translation du voyant de droite 32 vers une position apparente de défaut.On the figures 1 to 4 , the two LEDs 32,33 are visible through the opening 7 of the unit's housing 1, indicating respectively for the LED 32 located furthest to the right, tripping regardless of the type of fault, and for the LED located on further to the left 33, a magnetic type trigger. This apparent configuration of the two LEDs 32,33 indicates that a trip of magnetic origin has taken place. The so-called first indicator 32 located to the right has been moved by the hook when the rotating plate 15 has rotated having caused the hook to rotate rapidly, as this is more fully explained in the document EP 1,542,253 . The leftmost indicator 33, said second, has been moved by means of the aforementioned rotary lever 34 having been actuated during the translation of the striker 28 on a short-circuit fault. The operation of the so-called first S signaling means or so-called any type of fault will be explained in the following with particular reference to the figure 5 . Thus, during a fault of thermal origin, the deflection of the bimetallic strip 18 drives the drawer 30, which drawer drives the rotating bar 16, which results in the unlocking of the bar relative to the hook 19. Then, the hook 19 goes into rotation under the force of the rod 10, and the rotation of the hook 19 causes the translation of the right indicator 32 towards an apparent fault position.

Lors de l'apparition d'un défaut d'origine magnétique, le percuteur 28 entraîne la barre 16 en rotation, ce qui entraîne de la même manière que précédemment la translation du voyant de droite 32 vers une position apparente de défaut.When a fault of magnetic origin appears, the striker 28 drives the bar 16 in rotation, which causes the translation of the right-hand indicator 32 in the same manner as previously to an apparent fault position.

Le voyant de gauche 33 des seconds moyens de signalisation T est entraîné uniquement dans le cas d'un défaut magnétique par rotation du levier 34, lequel est entraîné par le percuteur 28 du déclencheur magnétique 13.The left indicator 33 of the second signaling means T is driven only in the case of a magnetic fault by rotation of the lever 34, which is driven by the striker 28 of the magnetic trip device 13.

Ainsi, l'apparition d'un seul voyant 32 à travers l'ouverture indique la survenue d'un défaut d'origine thermique, tandis que l'apparition des deux voyants 32,33 indique la survenue d'un défaut d'origine magnétique.Thus, the appearance of a single indicator 32 through the opening indicates the occurrence of a thermal fault, while the appearance of the two indicators 32.33 indicates the occurrence of a magnetic fault .

Ainsi, sur les figures 6,7 et 8, seul le voyant de droite 32 est apparent, ce qui indique la survenue d'un défaut d'origine thermique. En effet, dans ce cas, le tiroir 30 a entraîné la barre en rotation 16, ce qui a entraîné la rupture de la liaison crochet/barre, le crochet partant alors en rotation entraînant alors le voyant dit premier 32 en position défaut. Dans ce cas, seul ce voyant apparaît car le défaut thermique n'a aucun effet sur le levier précité 34.So on Figures 6,7 and 8 , only the right indicator 32 is visible, which indicates the occurrence of a thermal fault. Indeed, in this case, the drawer 30 has driven the bar in rotation 16, which has resulted in the breakage of the hook / bar link, the hook then starting in rotation then causing the so-called first indicator 32 in the default position. In this case, only this indicator appears because the thermal fault has no effect on the aforementioned lever 34.

Les figures 9, 10 et 11 illustrent le cas de la survenue d'un défaut d'origine magnétique. Dans ce cas, le deuxième voyant 33 a été activé par le levier 34 entraîné par le percuteur 28, le premier voyant 32 étant lui aussi en position défaut. Ainsi, cette apparition des deux voyants 32,33 permet de signaler un défaut d'origine magnétique. On peut ainsi distinguer un défaut d'origine thermique d'un défaut d'origine magnétique.The Figures 9, 10 and 11 illustrate the case of the occurrence of a fault of magnetic origin. In this case, the second indicator 33 has been activated by the lever 34 driven by the striker 28, the first indicator 32 also being in the default position. Thus, this appearance of the two LEDs 32.33 makes it possible to signal a fault of magnetic origin. We can thus distinguish a defect of thermal origin from a defect of magnetic origin.

Sur les figures 12 et 13, l'on voit que la platine 15 comporte un bec 35 apte à coopérer avec une partie 36 des voyants 32,33 s'étendant sensiblement perpendiculairement au plan desdits voyants, de manière à rappeler ces deux voyants en position de non défaut lors d'une fermeture de l'appareil après une ouverture sur défaut.On the figures 12 and 13 , it can be seen that the plate 15 comprises a spout 35 capable of cooperating with a part 36 of the indicator lights 32.33 extending substantially perpendicular to the plane of said indicator lights, so as to recall these two indicator lights in the non-fault position during closing the device after opening on fault.

Les figures 14 à 24 illustrent une autre réalisation du dispositif de signalisation D selon l'invention dans laquelle ce dispositif comporte un seul voyant 37 à trois positions pour réaliser les deux fonctions précédemment réalisées par les deux voyants de la réalisation précédente, à savoir la signalisation tout type de défauts et la fonction signalisation d'un seul défaut d'origine magnétique.The figures 14 to 24 illustrate another embodiment of the signaling device D according to the invention in which this device comprises a single indicator lamp 37 with three positions for performing the two functions previously performed by the two indicator lamps of the previous embodiment, namely signaling any type of faults and the signaling function of a single magnetic fault.

Ainsi, ce voyant 37, tel que représenté sur les figures 14 et 15, peut prendre trois positions à savoir une première position dite position 0 correspondant à une position de non défaut, une seconde position dite de défaut thermique dans laquelle ce voyant s'est déplacé de 2,5 mm par rapport à la première position, et une troisième position correspondant à une position de défaut magnétique dans laquelle le voyant s'est déplacé de 2,5 mm par rapport à la seconde position, ce qui fait qu'il se trouve à une distance de 5 mm par rapport à la position O.Thus, this indicator 37, as shown in the Figures 14 and 15 , can take three positions, namely a first position called position 0 corresponding to a non-fault position, a second position called a thermal fault in which this indicator has moved 2.5 mm relative to the first position, and a third position corresponding to a magnetic fault position in which the indicator has moved 2.5 mm from the second position, which means that it is at a distance of 5 mm from the O position.

Sur les figures 16 à 19, le voyant est en position dite 0 correspondant à une position de fermeture de l'appareil.On the figures 16 to 19 , the indicator is in the so-called 0 position corresponding to a closed position of the device.

Sur la figure 20, suite à un défaut d'origine thermique, la déflexion du bilame 18 a entraîné le tiroir 30, lequel a entraîné la barre 16 en rotation provoquant le déverrouillage de la barre par rapport au crochet 19. Le crochet est alors parti sous l'effet de l'effort de la biellette 10, la rotation du crochet 19 ayant entraîné la translation du voyant dit troisième 37 vers une position de défaut intermédiaire afin de signaler un défaut d'origine thermique. La course du voyant est alors limitée par la rotation du crochet.On the figure 20 , following a defect of thermal origin, the deflection of the bimetallic strip 18 has driven the slide 30, which has driven the bar 16 in rotation causing the unlocking of the bar relative to the hook 19. The hook is then left under the effect of the force of the link 10, the rotation of the hook 19 having caused the translation of the said third indicator 37 to a position of intermediate fault in order to signal a fault of thermal origin. The travel of the sight glass is then limited by the rotation of the hook.

Lors de la survenue d'un défaut d'origine magnétique, les mêmes effets se produisent au niveau de ces moyens de signalisation S dits tout type de défaut, mais avec un déclenchement réalisé par le percuteur 28 du déclencheur magnétique 13. Cependant dans ce cas, le percuteur entraîne également le levier en rotation 34, ce qui provoque une course supplémentaire au voyant dit troisième 37 lui permettant d'aller vers une seconde position de défaut et ainsi signaler un défaut d'origine magnétique.When a fault of magnetic origin occurs, the same effects occur at the level of these signaling means S, said to be any type of fault, but with a triggering carried out by the striker 28 of the magnetic trigger 13. However in this case , the striker also drives the rotating lever 34, which causes an additional stroke to the so-called third indicator 37 allowing it to go to a second fault position and thus signal a fault of magnetic origin.

Dans le cas de la survenue d'un défaut d'origine thermique, les moyens de signalisation S dits tout type de défaut amènent le voyant dans la seconde position à une distance de 2,5 mm du premier.In the event of a thermal fault occurring, the signaling means S, called any type of fault, bring the indicator in the second position at a distance of 2.5 mm from the first.

La séquence de fonctionnement lors d'un déclenchement magnétique, est la même que précédemment, mis à part le fait qu'il faut retenir le voyant 37 dans cette position en rendant possible le mouvement du voyant unique sur un déclenchement magnétique vers la troisième position, par le levier 34, en jouant sur les efforts magnétiques élevés, tel qu'illustré sur les figures 23 et 24.The operating sequence during a magnetic trip is the same as before, except for the fact that the light 37 must be retained in this position by making it possible for the single light to move on a magnetic trip towards the third position, by lever 34, by playing on the high magnetic forces, as illustrated on the figures 23 and 24 .

Dans ce cas, la course donnée au voyant 37 par le levier 34 est plus importante que la course donnée par le crochet 19 au voyant 37. De plus, les efforts magnétiques seront suffisants pour permettre au voyant de passer les butées 38 ou bosses de la position de défaut thermique. Et ces mêmes butées seront suffisantes pour bloquer le voyant en position de défaut thermique quelque soit l'énergie donnée au crochet par le voyant.In this case, the stroke given to the indicator 37 by the lever 34 is greater than the stroke given by the hook 19 to the indicator 37. In addition, the magnetic forces will be sufficient to allow the indicator to pass the stops 38 or bumps of the thermal fault position. And these same stops will be sufficient to block the indicator in the thermal fault position whatever the energy given to the hook by the indicator.

On a donc réalisé grâce à l'invention, un dispositif permettant de signaler un déclenchement sur défaut en distinguant un défaut thermique d'un défaut magnétique, permettant de communiquer au client de façon plus précise les défauts électriques dans une installation électrique.Thanks to the invention, a device has therefore been produced which makes it possible to signal a trip on fault by distinguishing a thermal fault from a magnetic fault, enabling the electrical faults in an electrical installation to be communicated to the customer more precisely.

Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et illustrés qui n'ont été donnés qu'à titre d'exemple.Of course, the invention is not limited to the embodiments described and illustrated which have been given only by way of example.

Claims (12)

  1. Device for signalling the trip of an electrical protection unit, such as a circuit breaker, housed in an insulating casing enclosing a pair of contacts constituted by a fixed (5) and a mobile (4) contact, said mobile contact being actuatable either manually by a handle (6) mechanically connected to a support device (3) of the mobile contact, said handle being pivotably mounted between a closed position and an open position of the contacts, or automatically by means of a trip mechanism having a magnetic trip (13) able to be activated in the event of the occurrence of a short-circuit fault and a thermal trip (18) able to be activated in the event of the occurrence of an overload fault, said mobile contact support (3) being mounted rotatably between an open position of the contacts and a closed position of the contacts and being connected to the handle (6) by a transmission means so as to form a breakable mechanical connection between the support and the handle, the activation of one of the trips inducing the rupture of the mechanical connection, inducing the separation of the contacts, and comprising first signalling means S or means for signalling any fault type, said means being intended to be activated to signal the tripped state of the unit whatever the fault type,
    characterized in that said device has second signalling means T able to be activated only in the event of the appearance of a short-circuit fault, said first signalling means S and second signalling means T cooperating with an opening (7) belonging to the casing (1) of the unit such that, in the event of the activation of the first S and second T signalling means, the latter can be viewed simultaneously through the opening in the casing so as to signal the occurrence of a short-circuit fault to the user, whereas in the event of the activation of the first signalling means S alone, these first signalling means S are visible through the opening in the casing so as to signal the occurrence of an overload fault to the user.
  2. Signalling device according to Claim 1, characterized in that the second signalling means T comprise a lever (34) or leg mounted rotatably relative to the casing (1) of the unit, said lever having a first end cooperating with the striker (28) of the magnetic trip and a second end cooperating with an indicator (33).
  3. Signalling device according to Claim 1 or 2, characterized in that the first signalling means S and the second signalling means T have, respectively, a first indicator (32) and a second indicator (33), said indicators being visible through an opening (7) in the casing (1) of the unit, the appearance of the two indicators through the opening signalling a fault of the magnetic type, whereas the appearance of a single indicator signals an overload fault.
  4. Signalling device according to Claim 1 or 2, characterized in that the first S and second T signalling means are carried by a single and the same indicator referred to as a third indicator (37), said third indicator being able to assume three positions, respectively a first position corresponding to a closed position of the unit, a second position corresponding to an opening of the contacts following an overload fault, and a third position corresponding to an opening in the event of a short circuit.
  5. Signalling device according to Claim 4, characterized in that said device has means for holding the third indicator (37) in the intermediate position, or second position, allowing the movement of the indicator into the third position in the event of a magnetic trip, by utilizing the magnetic forces generated by the striker (28) of the magnetic trip.
  6. Signalling device according to Claim 4 or 5, characterized in that the course of travel given to the third indicator (37) by the rotary lever (34) in the event of a trip of the magnetic type is greater than the course of travel given by the trip mechanism to said indicator in the event of an overload fault.
  7. Signalling device according to any one of Claims 4 to 6, characterized in that the magnetic forces exerted by the rotary lever (34) will be sufficient to allow the third indicator (37) to pass the stops or humps (38) provided on the indicator and cooperating with the edges delimiting the opening (7) of the casing (1) of the unit, these stops and humps being intended to block said indicator in the thermal fault position.
  8. Signalling device according to any one of the preceding claims, characterized in that said device has means for re-initializing the indicator(s) (32, 33, 37) in the fault-free position of the unit, as the unit is closed.
  9. Electrical protection unit having a signalling device according to any one of the preceding claims.
  10. Electrical protection unit having a mobile set of equipment comprising the aforementioned support device (3) of the mobile contact mounted rotatably between the two aforementioned positions and connected to the handle (6) by a transmission means (10) so as to form a breakable mechanical connection between the device (3) and the handle (6), characterized in that said unit has a signalling device D according to any one of Claims 1 to 8, and in that the aforementioned mobile set of equipment has a different profile depending on the speed of opening of the contacts (4, 5), this speed being different depending on whether the opening is manual or is caused by an electrical fault, this profile being such that said set of equipment actuates the aforementioned first signalling means S only in the event of an automatic opening of the contacts (4, 5) following a fault.
  11. Electrical protection unit according to Claim 10, characterized in that the aforementioned mobile set of equipment comprises a transmission link (10) articulated at one of the ends thereof to the handle (6), and connected in an articulated manner at the other end thereof to a hook (19), said hook (19) being articulated to the support device (3) of the mobile contact (4), cooperating with the trip means (16) and having a means (21) for actuating the signalling means S in the event of an opening of the contacts (4, 5) following a fault.
  12. Electrical protection unit according to any one of Claims 9 to 11, characterized in that said unit is a circuit breaker.
EP15175182.3A 2014-07-17 2015-07-03 Signaling device fault in an electric power protection apparatus and apparatus having such a device Active EP2975628B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1456861A FR3023969B1 (en) 2014-07-17 2014-07-17 DEVICE FOR SIGNALING AN ELECTRICAL FAULT IN AN ELECTRICAL PROTECTION APPARATUS, AND APPARATUS COMPRISING SUCH A DEVICE

Publications (2)

Publication Number Publication Date
EP2975628A1 EP2975628A1 (en) 2016-01-20
EP2975628B1 true EP2975628B1 (en) 2020-05-13

Family

ID=52824281

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15175182.3A Active EP2975628B1 (en) 2014-07-17 2015-07-03 Signaling device fault in an electric power protection apparatus and apparatus having such a device

Country Status (6)

Country Link
EP (1) EP2975628B1 (en)
CN (1) CN105280447B (en)
BR (1) BR102015015736B1 (en)
ES (1) ES2799719T3 (en)
FR (1) FR3023969B1 (en)
RU (1) RU2704918C2 (en)

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EP4064314A1 (en) 2021-03-26 2022-09-28 Schneider Electric Industries SAS Electrical protection device
WO2022243419A1 (en) 2021-05-20 2022-11-24 Schneider Electric Industries Sas Electrical protection apparatuses and systems
WO2022243456A1 (en) 2021-05-20 2022-11-24 Schneider Electric Industries Sas Electrical protection apparatuses and systems having an integrated cut-off module
FR3134226A1 (en) 2022-04-04 2023-10-06 Schneider Electric Industries Sas Modular electrical protection device with control and power modules

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FR3051593B1 (en) * 2016-05-23 2019-10-04 Schneider Electric Industries Sas DEVICE FOR SIGNALING AN ELECTRICAL FAULT IN AN ELECTRICAL PROTECTION APPARATUS, AND ELECTRICAL PROTECTION APPARATUS COMPRISING SUCH A DEVICE
CN110940913B (en) * 2018-09-21 2022-05-27 施耐德电器工业公司 Short-circuit fault indication and mechanical test mechanism for circuit breaker
CN111029184B (en) * 2019-12-16 2022-03-08 广东瑞德智能科技股份有限公司 Switch device, baking device with switch device and household appliance

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Publication number Priority date Publication date Assignee Title
EP4064314A1 (en) 2021-03-26 2022-09-28 Schneider Electric Industries SAS Electrical protection device
FR3121270A1 (en) 2021-03-26 2022-09-30 Schneider Electric Industries Sas Electrical protection device
WO2022243419A1 (en) 2021-05-20 2022-11-24 Schneider Electric Industries Sas Electrical protection apparatuses and systems
WO2022243456A1 (en) 2021-05-20 2022-11-24 Schneider Electric Industries Sas Electrical protection apparatuses and systems having an integrated cut-off module
FR3123142A1 (en) 2021-05-20 2022-11-25 Schneider Electric Industries Sas Electrical protection devices and systems comprising an integrated cut-off module
FR3123141A1 (en) 2021-05-20 2022-11-25 Schneider Electric Industries Sas Electrical protection devices and systems
FR3134226A1 (en) 2022-04-04 2023-10-06 Schneider Electric Industries Sas Modular electrical protection device with control and power modules
WO2023194292A1 (en) 2022-04-04 2023-10-12 Schneider Electric Industries Sas Modular electrical protection device with control and power modules

Also Published As

Publication number Publication date
RU2015129118A (en) 2017-01-20
EP2975628A1 (en) 2016-01-20
BR102015015736A2 (en) 2016-01-19
RU2704918C2 (en) 2019-10-31
FR3023969A1 (en) 2016-01-22
RU2015129118A3 (en) 2018-10-30
BR102015015736B1 (en) 2022-02-15
CN105280447A (en) 2016-01-27
FR3023969B1 (en) 2017-12-22
ES2799719T3 (en) 2020-12-21
CN105280447B (en) 2019-10-15

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