EP2131378A1 - Device for controlling an electrical cut-off device comprising a device for indicating the weld of the contacts, and electrical cut-off device including such a device - Google Patents
Device for controlling an electrical cut-off device comprising a device for indicating the weld of the contacts, and electrical cut-off device including such a device Download PDFInfo
- Publication number
- EP2131378A1 EP2131378A1 EP09354017A EP09354017A EP2131378A1 EP 2131378 A1 EP2131378 A1 EP 2131378A1 EP 09354017 A EP09354017 A EP 09354017A EP 09354017 A EP09354017 A EP 09354017A EP 2131378 A1 EP2131378 A1 EP 2131378A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- handle
- contacts
- pawl
- contact
- indicator
- 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
Links
- 239000000463 material Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000000717 retained effect Effects 0.000 claims description 4
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 230000011664 signaling Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 230000001960 triggered effect Effects 0.000 description 3
- 208000010543 22q11.2 deletion syndrome Diseases 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 210000003323 beak Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
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- 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
- H01H71/501—Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker
-
- 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
Definitions
- the present invention relates to a device for controlling an electric switchgear housed in an insulating housing, comprising at least one movable contact carried by a contact carrier intended to cooperate with at least one fixed contact with respect to the housing, said contact movable which can be operated either manually via a handle rotatably mounted about an axis of the housing, or automatically between an open position and a closed position of the fixed and movable contacts, and a closure device abruptly, said device being intended, at the beginning of the manual closing maneuver of the joystick and a certain stroke thereof, to hold the movable contact in the open position by storing energy and, after this stroke of the joystick, releasing said moving contact in such a way that the energy stored previously causes the fixed and mobile contacts to close abruptly, said closure device br USQUE UTILIZATION comprising a ratchet rotatably mounted about the axis of the handle, said pawl being biased by a spring against a stop of the handle, being driven by the handle in the direction of closing and cooperating with the contact
- This mechanism advantageously comprises a device for abrupt closing of the contacts comprising a locking arm arranged on the insulating support lever of the contact arm and cooperating with a pawl pivotally mounted on the axis of the joystick.
- This pawl is associated with a return spring which urges the pawl in the trigonometric direction against a stop of the joystick.
- This device does not include means for signaling the welding of the contacts.
- the device for indicating the welding of the contacts comprises a stop provided on the contact carrier intended to interfere with a locking nose provided on the base of the handle, so as to hold the handle in an intermediate position. in case of welding contacts.
- This mechanism also comprises an apparent signal indicator of the opening of the circuit breaker arranged on the base of the handle in the vicinity of the hinge of the toggle joint, so as to be visible from the outside of the housing through the orifice when the handle arrives in the open position.
- the indicator comprises a first signaling arm equipped with an indicator light, and a second control arm movable between two end stops, and having a step cooperating with the nose of the contact carrier to lock the indicator in the position inactive when the handle is actuated from the closed position to the open position when the contacts are soldered.
- the present invention solves the aforementioned problems and proposes a device for controlling an electrical switching device comprising a contact welding signaling device, of simple design, having a reduced number of parts, and for which the handling of the controller when the contacts are soldered does not mislead the indicator in the open position of the contacts.
- the subject of the present invention is a control device of the kind mentioned above, this device being characterized in that the aforementioned pawl comprises a light, said light being visible from the outside through an opening of the housing, that when the fixed and mobile contacts are open.
- the above-mentioned pawl is integral with the indicator light.
- this pawl has a so-called first outer surface, in the form of a cylinder portion, cooperating with a ramp belonging to the contact-carrier, so that it is retained in the open position of the contacts during the closing of the the handle for a certain period corresponding to the time during which the pawl slides along the ramp of the contact carrier.
- the aforementioned pawl has at one of the ends of its so-called first outer surface, a second surface portion extending substantially perpendicular to the first and intended to cooperate with a beak portion formed to the end of the ramp of the aforementioned contact carrier, so as to retain the pawl in a position in which the indicator is not visible from the outside, when the handle is driven to the open position of the contacts, when the contacts are soldered.
- the aforesaid indicator is formed by a strip of material extending from said so-called second surface portion.
- the base of the handle has an outer surface also in the form of a cylinder portion, and this base has a clearance of material whose outer shape is complementary to that of the inner surface facing the axis of the cylinder.
- this control device comprising a transmission rod coupled to the lever, a device for supporting the movable contact comprising a plate pivotally mounted on a pivot and having a mechanical link breakable with the transmission rod, a lever of tripping triggered by a trigger to cause failure in the event of failure of the mechanical link, causing the automatic triggering of the mechanism independently of the handle and the separation of the contacts, the breakable mechanical link having a detent of the release lever cooperating with a hook hook pivotally mounted on an axis of the plate, the breaking of the mechanical connection corresponding to the unlocking of the attachment,
- this device is characterized in that it further comprises a stop integral with the plate and adapted to cooperate with the hook so as to guarantee the position of the joystick in a intermediate position of the handle in which the contacts are welded.
- the invention further relates to an electrical switching device comprising a control device comprising the previously mentioned features taken alone or in combination.
- a miniature electric circuit breaker molded insulating housing B comprising a control device 1 according to the invention.
- This control device 1 is of the type described in the European patent application no. 86,402,267 of the plaintiff.
- the device actuates a contact holder 2 having a contact piece 3 cooperating with a fixed contact 4.
- An opening 5 is formed in the front face 6 of the housing for the passage of the handle of a handle 7 mounted to pivotally limited on a X axis between a closed position in which the contacts 3,4 are closed, and an open position corresponding to the separation of the contacts 3,4.
- the handle 7 is equipped with an internal base 8 coupled to a transmission rod 9 to form a toggle device whose articulation 10 is eccentric with respect to the axis X of the lever 7.
- the lever 7 is requested in a direction corresponding to the opening of the contacts by a return spring 11 illustrated on the figure 2 .
- the fixed contact 4 is secured to the casing of an electromagnetic trip unit 12.
- the contact carrier 2 of insulating material is articulated around a pivot 14 belonging to a rotary plate 15 for driving the contact carrier 2.
- a triggering lever 16 controlled by the striker 17 of the electromagnetic release and the bimetallic strip 18 of the thermal release is pivotally mounted on a Y axis carried by the plate 15 with a predetermined offset with respect to the aforementioned pivot 14.
- a breakable mechanical connection is provided between the transmission rod 9 and the drive plate of the contact carrier 2. In the locked position, the connection allows the manual control of the mechanism by the lever 7.
- the movement of the trigger lever 16 towards the position triggered by the action of the trigger causes the momentary break of the mechanical connection, causing the automatic triggering of the mechanism, regardless of the joystick.
- the trip lever 16 is associated with a return spring 19 for ensuring the automatic restoration of the mechanical link when the handle 7 is actuated to the open position, following a trigger of the fault mechanism.
- the breakable mechanical link comprises a hook 20 pivotally mounted on an axis Z of the plate 15. At the opposite of this axis Z, a spout 21 of the hook (not visible in the figures) cooperates in the locked position of the link with a retaining catch 22 (not visible in the figures) located on the arm of the trip lever 16.
- the transmission link 9 is coupled to the hook 20 and the plate 15 at a hinge point that can move when triggered in two consecutive apertures 23,24 of the plate 15. This point of articulation is located between the hinge axis Z of the hook 20 on the plate 15 and the spout 21 of the hook hook.
- the device further comprises a stop 33 ( fig.8 ) integral with the plate 15 and adapted to cooperate with the hook 20 so as to ensure the position of the handle 7 in an intermediate position of the handle 7 wherein the contacts 3,4 are welded.
- This control device 1 also comprises a pawl 25 rotatably mounted around the axis X of the lever 7 and returned by the aforementioned spring 11 in the counterclockwise direction against a stop 7a of the base 8 of the handle 7 ( fig.2 ).
- this spring 11 comprises a first leg 11a fixed in the casing 26 and a second leg 11b resting on a stop 25a of the pawl and also intended to return the lever 7 in the open position by the abutments on the stops 7a of the handle and 25b of the ratchet ( fig.2 ).
- This pawl 25 has an outer surface 27, said first, in the form of a cylinder portion intended to cooperate with a ramp 28 provided at the end of the contact carrier 2, so that the contact carrier 2 is retained in the position of opening of the contacts during the closure of the handle 7, for a certain period corresponding to the time during which the pawl 25 slides along the ramp 28 of the contact carrier 2.
- This pawl 25 comprises, at the end 29 of the outer surface 27 in the form of said cylinder portion, a surface portion 30, said second, extending substantially perpendicular to the surface portion 27, said first, and from of which extends a band of material forming the indicator 31.
- This portion of surface 30, called second comprises a portion 30a ( fig.2 ) intended to cooperate with a nose portion 32 formed at the end of the ramp 28 of the aforementioned contact carrier 2, so as to retain the pawl, against its return spring 11, in a position in which the LED 31 is not visible from the outside, when the handle 7 is driven from the closed position of the contacts to the open position of the contacts when the contacts are soldered.
- the base 8 of the handle 7 has an outer surface 34 also shaped cylinder portion, and this base has a clearance of material 35 whose outer shape is complementary to that of the inner surface 37 of the strip of material 31 forming the light, so that in the open position of the contacts, these two last surfaces are superimposed, said strip of material 31 forming a light having an outer surface 38 located in the extension of the outer surface 34 of the aforementioned base 8.
- the handle 7 has begun to be moved manually to the closed position by a movement from left to right.
- the kinematic chain connecting the lever 7 to the plate 15 drives the contact holder 2 towards the fixed contact 4.
- the lever 7 drives the pawl 25 in its movement because the indicator 31 is supported on the base 8 of the handle 7 in the open position.
- the pawl 25 rotates with the handle 7 and approaches the contact holder, which rotates in the opposite direction.
- the engagement of the pawl 25 with the ramp 28 of the contact carrier 2 stops the rotation of the contact carrier, and maintains the contact piece 3 of the contact carrier 2 at a predetermined distance from the fixed contact 4.
- the contact carrier 2 remains then still, but the pawl 25 can nevertheless slide along the ramp 28, allowing the closing movement of the lever 7.
- the lever 7 continues to actuate the mechanism that tends the pressure spring of contact. This results in an accumulation of energy in the contact pressure spring until the end of the sliding movement of the pawl on the ramp, position represented on the figure 6 .
- the final movement of the handle 7 towards the closed position illustrated on the figure 7 causes the release of the contact carrier 2 by the pawl 25, followed by the abrupt closure of the contact carrier 2 under the action of the drive train and in particular the contact pressure spring.
- the indicator 31 passes from the visible position from the outside to the retracted position inside the device.
- the pawl When manually opening the circuit breaker as shown on the figure 8 , the pawl abuts on the spout 32 of the contact holder without hindering the free pivoting of the plate and the contact holder. Then, the ratchet remains in position and the handle and its mechanism continue their rotation. When the opening distance between the contacts 3 and 4 is greater than 1.5mm, the pawl escapes the stop 32 and is biased against the face 7a of the base 8 of the lever under the effect of the spring. 11, to the open position of the joystick illustrated on the figure 5 and the indicator 31 appears through the opening 5 of the housing, as shown in FIG. figure 1 .
- the handle 7 can move to a certain point but does not drive the plate because the contacts are welded.
- the pawl 25 is biased towards the lever in the opposite trigonometric direction by its return spring 11.
- the pawl 25 comes into contact with its so-called second ramp surface 30, with the spout 32 of the contact carrier and is retained by this contact carrier in an intermediate position in which the indicator 31 is retracted inside the device as shown in FIG. figure 8 .
- the indicator 31 remains in this intermediate position as the contacts are welded.
- the indicator 31 is carried by the pawl 25 which serves for the sudden closure.
- This pawl is locked in the intermediate position by the contact carrier 2 when the contacts are welded.
- the kinematics of the indicator is independent of external actions on the controller.
- the present invention applies to any electrical breaking device such as a circuit breaker, a switch or a disconnector, etc. whose contacts can be actuated by a handle or the like, and comprising a sudden closure device, said abrupt closure device comprising a pawl rotatably mounted about the axis of the handle.
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- Mechanisms For Operating Contacts (AREA)
Abstract
Description
La présente invention concerne un dispositif de commande d'un appareil de coupure électrique logé dans un boîtier isolant, comportant au moins un contact mobile porté par un porte-contacts destiné à coopérer avec au moins un contact fixe par rapport au boîtier, le dit contact mobile pouvant être actionné soit manuellement par l'intermédiaire d'une manette montée à rotation autour d'un axe du boîtier, soit automatiquement, entre une position d'ouverture et une position de fermeture des contacts fixe et mobile, et un dispositif de fermeture brusque, ledit dispositif étant destiné, en début de manoeuvre de fermeture manuelle de la manette et sur une certaine course de celle-ci, à retenir le contact mobile en position ouverte en emmagasinant de l'énergie et, après cette course de la manette, à libérer ledit contact mobile de manière que l'énergie emmagasinée précédemment entraîne la fermeture brusque des contacts fixe et mobile, ledit dispositif de fermeture brusque comportant un cliquet monté rotatif autour de l'axe de la manette, ledit cliquet étant rappelé par un ressort contre une butée de la manette, étant entraîné par la manette dans le sens de la fermeture et coopérant avec le porte-contacts de manière à assurer la fermeture brusque dudit contact mobile, ainsi qu'un appareil de coupure électrique comportant un tel dispositif.The present invention relates to a device for controlling an electric switchgear housed in an insulating housing, comprising at least one movable contact carried by a contact carrier intended to cooperate with at least one fixed contact with respect to the housing, said contact movable which can be operated either manually via a handle rotatably mounted about an axis of the housing, or automatically between an open position and a closed position of the fixed and movable contacts, and a closure device abruptly, said device being intended, at the beginning of the manual closing maneuver of the joystick and a certain stroke thereof, to hold the movable contact in the open position by storing energy and, after this stroke of the joystick, releasing said moving contact in such a way that the energy stored previously causes the fixed and mobile contacts to close abruptly, said closure device br USQUE UTILIZATION comprising a ratchet rotatably mounted about the axis of the handle, said pawl being biased by a spring against a stop of the handle, being driven by the handle in the direction of closing and cooperating with the contact holder so as to ensure the sudden closure of said movable contact, as well as an electrical switching device comprising such a device.
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La présente invention résout les problèmes précités et propose un dispositif de commande d'un appareil de coupure électrique comportant un dispositif de signalisation de la soudure des contacts, de conception simple, comportant un nombre de pièces réduit, et pour lequel la manipulation de la manette lorsque les contacts sont soudés n'entraîne pas le voyant de manière erronée en position ouverte des contacts.The present invention solves the aforementioned problems and proposes a device for controlling an electrical switching device comprising a contact welding signaling device, of simple design, having a reduced number of parts, and for which the handling of the controller when the contacts are soldered does not mislead the indicator in the open position of the contacts.
A cet effet la présente invention a pour objet un dispositif de commande du genre précédemment mentionné, ce dispositif étant caractérisé en ce que le cliquet précité comporte un voyant, ledit voyant n'étant visible de l'extérieur à travers une ouverture du boîtier, que lorsque les contacts fixe et mobile sont ouverts.
Selon une réalisation particulière de l'invention, le cliquet précité est venu de matière avec le voyant.
Selon une caractéristique particulière, ce cliquet présente une surface extérieure dite première, en forme de portion de cylindre, coopérant avec une rampe appartenant au porte-contact, de manière que celui-ci soit retenu en position d'ouverture des contacts pendant la fermeture de la manette, pendant une certaine durée correspondant au temps pendant lequel le cliquet glisse le long de la rampe du porte-contact.For this purpose, the subject of the present invention is a control device of the kind mentioned above, this device being characterized in that the aforementioned pawl comprises a light, said light being visible from the outside through an opening of the housing, that when the fixed and mobile contacts are open.
According to a particular embodiment of the invention, the above-mentioned pawl is integral with the indicator light.
According to a particular characteristic, this pawl has a so-called first outer surface, in the form of a cylinder portion, cooperating with a ramp belonging to the contact-carrier, so that it is retained in the open position of the contacts during the closing of the the handle for a certain period corresponding to the time during which the pawl slides along the ramp of the contact carrier.
Selon une autre caractéristique, le cliquet précité comporte à l'une des extrémités de sa surface extérieure précitée dite première, une portion de surface, dite seconde, s'étendant sensiblement perpendiculairement à la première et destinée à coopérer avec une partie formant bec formée à l'extrémité de la rampe du porte-contact précité, de manière à retenir le cliquet dans une position dans laquelle le voyant n'est pas visible de l'extérieur, lorsque la manette est entraînée vers la position d'ouverture des contacts, lorsque les contacts sont soudés.According to another characteristic, the aforementioned pawl has at one of the ends of its so-called first outer surface, a second surface portion extending substantially perpendicular to the first and intended to cooperate with a beak portion formed to the end of the ramp of the aforementioned contact carrier, so as to retain the pawl in a position in which the indicator is not visible from the outside, when the handle is driven to the open position of the contacts, when the contacts are soldered.
Selon une autre caractéristique, le voyant précité est formé par une bande de matière s'étendant à partir de la portion de surface dite seconde précitée.According to another characteristic, the aforesaid indicator is formed by a strip of material extending from said so-called second surface portion.
Selon une autre caractéristique, l'embase de la manette présente une surface extérieure également en forme de portion de cylindre, et cette embase présente un dégagement de matière dont la forme extérieure est complémentaire de celle de la surface intérieure dirigée vers l'axe de la manette, de la bande de matière formant le voyant, de manière que dans la position ouverte des contacts, ces deux dernières surfaces viennent se superposer, ladite bande de matière formant voyant présentant une surface extérieure située dans le prolongement de la surface extérieure de l'embase précitée.According to another characteristic, the base of the handle has an outer surface also in the form of a cylinder portion, and this base has a clearance of material whose outer shape is complementary to that of the inner surface facing the axis of the cylinder. lever, the strip of material forming the indicator, so that in the open position of the contacts, these two last surfaces are superimposed, said strip of light material having an outer surface located in the extension of the outer surface of the aforementioned base.
Selon une autre caractéristique, ce dispositif de commande comportant une biellette de transmission accouplée à la manette, un dispositif de support du contact mobile comportant une platine montée à rotation sur un pivot et ayant une liaison mécanique brisable avec la biellette de transmission, un levier de déclenchement commandé par un déclencheur pour provoquer en cas de défaut la rupture de la liaison mécanique, entraînant le déclenchement automatique du mécanisme indépendamment de la manette et la séparation des contacts, la liaison mécanique brisable comportant un cran de retenue du levier de déclenchement coopérant avec un crochet d'accrochage monté à pivotement sur un axe de la platine, la rupture de la liaison mécanique correspondant au déverrouillage de l'accrochage, ce dispositif est caractérisé en ce qu'il comporte en outre une butée solidaire de la platine et apte à coopérer avec le crochet de manière à garantir la position de la manette dans une position intermédiaire de la manette dans laquelle les contacts sont soudés.According to another characteristic, this control device comprising a transmission rod coupled to the lever, a device for supporting the movable contact comprising a plate pivotally mounted on a pivot and having a mechanical link breakable with the transmission rod, a lever of tripping triggered by a trigger to cause failure in the event of failure of the mechanical link, causing the automatic triggering of the mechanism independently of the handle and the separation of the contacts, the breakable mechanical link having a detent of the release lever cooperating with a hook hook pivotally mounted on an axis of the plate, the breaking of the mechanical connection corresponding to the unlocking of the attachment, this device is characterized in that it further comprises a stop integral with the plate and adapted to cooperate with the hook so as to guarantee the position of the joystick in a intermediate position of the handle in which the contacts are welded.
L'invention a encore pour objet un appareil électrique de coupure comportant un dispositif de commande comportant les caractéristiques précédemment mentionnées prises seules ou en combinaison.The invention further relates to an electrical switching device comprising a control device comprising the previously mentioned features taken alone or in combination.
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 :
- La
figure 1 est une vue en perspective, illustrant la partie intérieure d'un appareil de coupure selon l'invention comportant un dispositif de commande selon l'invention, en position ouverte des contacts, - La
figure 2 est une vue partielle, en perspective, illustrant plus particulièrement la manette dans cette position ouverte des contacts de l'appareil, - La
figure 3 est une vue de dessus de l'appareil, dans cette même position des contacts, - La
figure 4 est une vue en perspective, illustrant la partie arrière du même appareil dans cette même position, - La
figure 5 est une vue en perspective, illustrant la partie intérieure du même appareil, dans une position correspondant à un début de fermeture de l'appareil, - La
figure 6 est une vue identique à la figure précédente, dans une position du dispositif correspondant à la fermeture brusque de l'appareil, - La
figure 7 est une vue identique aux précédentes, l'appareil étant dans une position fermée, - La
figure 8 est une vue en plan, illustrant la partie intérieure de l'appareil, dans une position de celui-ci dans laquelle ses contacts sont soudés, - La
figure 9 est une vue partielle et comportant un arraché, illustrant plus particulièrement la manette dans une position soudée des contacts, et - La
figure 10 est une vue de dessus de l'appareil de coupure, dans une position soudée des contacts, après que l'on ait forcé sur la manette.
- The
figure 1 is a perspective view, illustrating the inner part of a cut-off device according to the invention comprising a control device according to the invention, in the open position of the contacts, - The
figure 2 is a partial view, in perspective, illustrating more particularly the handle in this open position of the contacts of the apparatus, - The
figure 3 is a top view of the device, in this same position of the contacts, - The
figure 4 is a perspective view, illustrating the rear part of the same apparatus in this same position, - The
figure 5 is a perspective view, illustrating the inner part of the same apparatus, in a position corresponding to a beginning of closing of the apparatus, - The
figure 6 is a view identical to the previous figure, in a position of the device corresponding to the sudden closure of the apparatus, - The
figure 7 is a view identical to the previous ones, the apparatus being in a closed position, - The
figure 8 is a plan view, illustrating the inner part of the apparatus, in a position thereof in which its contacts are welded, - The
figure 9 is a partial view and comprising a snatch, illustrating more particularly the handle in a welded position of the contacts, and - The
figure 10 is a top view of the switchgear, in a soldered position of the contacts, after being forced on the controller.
Sur les
Un levier de déclenchement 16 piloté par le percuteur 17 du déclencheur électromagnétique et la bilame 18 du déclencheur thermique, est monté à pivotement sur un axe Y porté par la platine 15 avec un décalage prédéterminé par rapport au pivot précité 14.A
Une liaison mécanique brisable est ménagée entre la biellette de transmission 9 et la platine 15 d'entraînement du porte-contact 2. En position verrouillée, la liaison autorise la commande manuelle du mécanisme par la manette 7. Le déplacement du levier de déclenchement 16 vers la position déclenchée sous l'action du déclencheur, provoque la rupture momentanée de la liaison mécanique, entraînant le déclenchement automatique du mécanisme, indépendamment de la manette. Le levier de déclenchement 16 est associé à un ressort de rappel 19 destiné à assurer le rétablissement automatique de la liaison mécanique lorsque la manette 7 est actionnée vers la position d'ouverture, suite à un déclenchement du mécanisme sur défaut.A breakable mechanical connection is provided between the
La liaison mécanique brisable comporte un crochet 20 monté à pivotement sur un axe Z de la platine 15. A l'opposé de cet axe Z, un bec 21 du crochet (non visible sur les figures) coopère en position verrouillée de la liaison avec un cran de retenue 22 (non visible sur les figures) situé sur le bras du levier de déclenchement 16. La biellette de transmission 9 est accouplée au crochet 20 et à la platine 15 en un point d'articulation susceptible de se déplacer lors du déclenchement dans deux ouvertures 23,24 consécutives de la platine 15. Ce point d'articulation est situé entre l'axe d'articulation Z du crochet 20 sur la platine 15 et le bec 21 du crochet d'accrochage.
On notera également que le dispositif comporte en outre une butée 33 (
It will also be noted that the device further comprises a stop 33 (
Ce dispositif de commande 1 comporte également un cliquet 25 monté rotatif autour de l'axe X de la manette 7 et rappelé par le ressort précité 11 dans le sens trigonométrique contre une butée 7a de l'embase 8 de la manette 7 (
Tel qu'illustré sur la
Ce cliquet 25 présente une surface extérieure 27, dite première, en forme de portion de cylindre destinée à coopérer avec une rampe 28 prévue à l'extrémité du porte-contact 2, de manière que ce porte-contact 2 soit retenu en position d'ouverture des contacts pendant la fermeture de la manette 7, pendant une certaine durée correspondant au temps pendant lequel le cliquet 25 glisse le long de la rampe 28 du porte-contact 2.This control device 1 also comprises a
As illustrated on the
This
Ce cliquet 25 comporte, à l'extrémité 29 de la surface extérieure 27 en forme de portion de cylindre précitée, une portion de surface 30, dite seconde, s'étendant sensiblement perpendiculairement à la portion de surface 27, dite première, et à partir de laquelle s'étend une bande de matière formant le voyant 31. Cette portion de surface 30, dite seconde, comporte une partie 30a (
Tel qu'illustré sur la
Le fonctionnement du dispositif de commande selon l'invention va être décrit ci-après en référence aux figures :The operation of the control device according to the invention will be described hereinafter with reference to the figures:
Sur les
Sur la
Au début de la course de fermeture, la chaîne cinématique de liaison de la manette 7 à la platine 15 entraîne le porte-contacts 2 vers le contact fixe 4. Lors de son déplacement, la manette 7 entraîne le cliquet 25 dans son mouvement, car le voyant 31 est en appui sur l'embase 8 de la manette 7 en position d'ouverture. Le cliquet 25 tourne avec la manette 7 et se rapproche du porte-contacts, lequel tourne en sens inverse. L'engagement du cliquet 25 avec la rampe 28 du porte-contact 2 stoppe la rotation du porte-contacts, et maintient la pièce de contact 3 du porte-contact 2 à une distance prédéterminée du contact fixe 4. Le porte-contacts 2 reste alors immobile, mais le cliquet 25 peut néanmoins glisser le long de la rampe 28, en autorisant le mouvement de fermeture de la manette 7. Pendant ce mouvement de la manette 7, cette dernière continue d'actionner le mécanisme qui tend le ressort de pression de contact. Il en résulte une accumulation d'énergie dans le ressort de pression de contact jusqu'à la fin du mouvement de glissement du cliquet sur la rampe, position représentée sur la
Le déplacement final de la manette 7 vers la position de fermeture illustrée sur la
Pendant le déplacement de la manette 7 de la position d'ouverture illustrée sur la
At the beginning of the closing stroke, the kinematic chain connecting the
The final movement of the
While moving the
Lors de l'ouverture manuelle du disjoncteur tel que représenté sur la
Lorsque les contacts sont soudés, et que l'on veut passer de la position de fermeture représentée sur la
Ainsi, selon l'invention, le voyant 31 est porté par le cliquet 25 qui sert à la fermeture brusque. Ce cliquet est bloqué en position intermédiaire par le porte-contact 2 lorsque les contacts sont soudés. Ainsi, la cinématique du voyant est indépendante des actions externes sur la manette.
La présente invention s'applique à tout appareil de coupure électrique tel un disjoncteur, un interrupteur ou un sectionneur, etc. dont les contacts peuvent être actionnés par une manette ou analogue, et comportant un dispositif de fermeture brusque, ledit dispositif de fermeture brusque comportant un cliquet monté rotatif autour de l'axe de la manette.When the contacts are welded, and we want to move from the closed position shown on the
Thus, according to the invention, the
The present invention applies to any electrical breaking device such as a circuit breaker, a switch or a disconnector, etc. whose contacts can be actuated by a handle or the like, and comprising a sudden closure device, said abrupt closure device comprising a pawl rotatably mounted about the axis of the handle.
On a ainsi réalisé suivant l'invention, un dispositif de commande dans lequel la cinématique du voyant est indépendante des actions de l'opérateur sur la manette sans qu'il soit nécessaire d'apporter des pièces supplémentaires. Quelque soit l'effort appliqué sur la manette, le voyant n'apparaît pas lorsque les contacts sont soudés.It has thus been realized according to the invention, a control device in which the kinematics of the indicator is independent of the actions of the operator on the controller without it it is necessary to bring additional pieces. Whatever the force applied on the handle, the indicator does not appear when the contacts are soldered.
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 by way of example.
Au contraire, l'invention comprend tous les équivalents techniques des moyens décrits ainsi que leurs combinaisons si celles-ci sont réalisées suivant son esprit.On the contrary, the invention comprises all the technical equivalents of the means described and their combinations if they are carried out according to its spirit.
Claims (8)
caractérisé en ce que le cliquet précité (25) comporte un voyant (31), ledit voyant (31) n'étant visible de l'extérieur à travers une ouverture (5) du boîtier, que lorsque les contacts fixe (3) et mobile (4) sont ouverts.Device for controlling an electric switchgear housed in an insulating housing, comprising at least one movable contact carried by a contact carrier intended to cooperate with at least one fixed contact with respect to the housing, said movable contact being able to be operated either manually by means of a handle rotatably mounted about an axis of the housing, or automatically, between an open position and a closed position of the fixed and movable contacts, and an abrupt closure device, said device being intended at the beginning of the manual closing operation of the handle and on a certain stroke thereof, to retain the movable contact in the open position by storing energy and, after this stroke of the handle, to release said movable contact of in that the energy stored previously causes the fixed and mobile contacts to close abruptly, said abrupt closure device comprising a ratchet mounted on otatif around the axis of the lever, said pawl being biased by a spring against a stop of the lever, being driven by the handle in the direction of closing the fixed and movable contacts and cooperating with the contact carrier so as to ensure the abrupt closure of said moving contact,
characterized in that said pawl (25) comprises an indicator (31), said indicator (31) being visible from the outside through an opening (5) of the housing, only when the fixed (3) and movable contacts (4) are open.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0803045A FR2931998A1 (en) | 2008-06-03 | 2008-06-03 | DEVICE FOR CONTROLLING AN ELECTRICAL CUTTING APPARATUS COMPRISING A DEVICE FOR SIGNALING THE CONTACTS WELDING, AND AN ELECTRICAL CUTTING APPARATUS COMPRISING SUCH A DEVICE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2131378A1 true EP2131378A1 (en) | 2009-12-09 |
EP2131378B1 EP2131378B1 (en) | 2015-01-14 |
Family
ID=40229771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09354017.7A Active EP2131378B1 (en) | 2008-06-03 | 2009-04-22 | Device for controlling an electrical switching device comprising a device for indicating the weld of the contacts, and electrical switching device including such a device |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP2131378B1 (en) |
CN (1) | CN101599394B (en) |
AU (1) | AU2009202174B9 (en) |
BR (1) | BRPI0902025B1 (en) |
EG (1) | EG25279A (en) |
ES (1) | ES2534633T3 (en) |
FR (1) | FR2931998A1 (en) |
RU (1) | RU2502149C2 (en) |
ZA (1) | ZA200902898B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019091405A1 (en) * | 2017-11-07 | 2019-05-16 | 施耐德电气工业公司 | Low-voltage power distribution device capable of detecting predetermined state |
EP4040463A1 (en) * | 2021-02-09 | 2022-08-10 | Schneider Electric Industries SAS | Quick closing structure suitable for dc circuit breaker and dc circuit breaker |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8395063B2 (en) * | 2010-12-29 | 2013-03-12 | General Electric Company | Locking device for use with a circuit breaker and method of assembly |
FR3030871B1 (en) | 2014-12-17 | 2019-05-10 | Schneider Electric Industries Sas | THERMAL RELEASE DEVICE FOR LOW VOLTAGE CIRCUIT BREAKER AND CIRCUIT BREAKER HAVING SUCH A DEVICE |
FR3030870B1 (en) * | 2014-12-19 | 2018-01-05 | Schneider Electric Industries Sas | ELECTRICAL SWITCHING DEVICE WITH MEANS FOR SIGNALING THE PRESENCE OF AUXILIARY BLOCKS |
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 |
CN109755078B (en) * | 2017-11-07 | 2020-05-29 | 施耐德电气工业公司 | Low-voltage power distribution device and method for controlling tripping of low-voltage power distribution device |
CN108227825B (en) * | 2018-01-25 | 2023-09-22 | 柳工常州机械有限公司 | Operation handle stop-assisting device |
FR3087273B1 (en) * | 2018-10-15 | 2020-11-06 | Schneider Electric Ind Sas | MEASURING DEVICE AND ELECTRICAL SWITCHING DEVICE |
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FR2616583A1 (en) | 1987-06-09 | 1988-12-16 | Merlin Gerin | CONTROL MECHANISM OF A MINIATURE ELECTRIC CIRCUIT BREAKER |
EP0342133A1 (en) | 1988-05-13 | 1989-11-15 | Merlin Gerin | Operating mechanism for a miniature circuit breaker having a contact-welding indicator |
FR2660794A1 (en) | 1990-04-09 | 1991-10-11 | Merlin Gerin | CONTROL MECHANISM OF AN ELECTRIC CIRCUIT BREAKER. |
EP0897186A2 (en) * | 1997-08-14 | 1999-02-17 | Siemens Aktiengesellschaft | Switch mechanism for a circuit breaker |
EP1542253A1 (en) * | 2003-12-08 | 2005-06-15 | Schneider Electric Industries SA | Signalling device indicating the triggering of an electrical protection device |
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FR2795860B1 (en) * | 1999-07-02 | 2001-09-14 | Schneider Electric Ind Sa | AUXILIARY SIGNALING MODULE FOR AN ELECTRICAL DEVICE WITH TRIGGER |
FR2859816B1 (en) * | 2003-09-11 | 2006-04-07 | Legrand Sa | ELECTRIC CURRENT CUTTING DEVICE WITH COMPLETE DISCRIMINATION OF STATES |
-
2008
- 2008-06-03 FR FR0803045A patent/FR2931998A1/en active Pending
-
2009
- 2009-04-22 EP EP09354017.7A patent/EP2131378B1/en active Active
- 2009-04-22 ES ES09354017.7T patent/ES2534633T3/en active Active
- 2009-04-28 ZA ZA2009/02898A patent/ZA200902898B/en unknown
- 2009-06-02 RU RU2009120937/07A patent/RU2502149C2/en active
- 2009-06-02 AU AU2009202174A patent/AU2009202174B9/en active Active
- 2009-06-02 EG EG2009060834A patent/EG25279A/en active
- 2009-06-02 BR BRPI0902025-0A patent/BRPI0902025B1/en active IP Right Grant
- 2009-06-03 CN CN200910145349.3A patent/CN101599394B/en active Active
Patent Citations (6)
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FR2616583A1 (en) | 1987-06-09 | 1988-12-16 | Merlin Gerin | CONTROL MECHANISM OF A MINIATURE ELECTRIC CIRCUIT BREAKER |
EP0342133A1 (en) | 1988-05-13 | 1989-11-15 | Merlin Gerin | Operating mechanism for a miniature circuit breaker having a contact-welding indicator |
FR2660794A1 (en) | 1990-04-09 | 1991-10-11 | Merlin Gerin | CONTROL MECHANISM OF AN ELECTRIC CIRCUIT BREAKER. |
EP0452230A1 (en) * | 1990-04-09 | 1991-10-16 | Merlin Gerin | Driving mechanism for circuit breaker |
EP0897186A2 (en) * | 1997-08-14 | 1999-02-17 | Siemens Aktiengesellschaft | Switch mechanism for a circuit breaker |
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WO2019091405A1 (en) * | 2017-11-07 | 2019-05-16 | 施耐德电气工业公司 | Low-voltage power distribution device capable of detecting predetermined state |
RU2742134C1 (en) * | 2017-11-07 | 2021-02-02 | Шнейдер Электрик Эндюстри Сас | Low-voltage power distributing apparatus configured to detect predetermined state |
EP4040463A1 (en) * | 2021-02-09 | 2022-08-10 | Schneider Electric Industries SAS | Quick closing structure suitable for dc circuit breaker and dc circuit breaker |
Also Published As
Publication number | Publication date |
---|---|
AU2009202174A1 (en) | 2009-12-17 |
ZA200902898B (en) | 2009-12-30 |
RU2502149C2 (en) | 2013-12-20 |
FR2931998A1 (en) | 2009-12-04 |
EP2131378B1 (en) | 2015-01-14 |
EG25279A (en) | 2011-12-05 |
BRPI0902025B1 (en) | 2020-03-31 |
BRPI0902025A2 (en) | 2010-04-13 |
CN101599394A (en) | 2009-12-09 |
RU2009120937A (en) | 2010-12-10 |
AU2009202174B9 (en) | 2015-04-23 |
AU2009202174B2 (en) | 2014-12-04 |
ES2534633T3 (en) | 2015-04-27 |
CN101599394B (en) | 2015-05-20 |
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