EP2573782A1 - Electric protection apparatus comprising a tie-bar supporting a movable contact - Google Patents
Electric protection apparatus comprising a tie-bar supporting a movable contact Download PDFInfo
- Publication number
- EP2573782A1 EP2573782A1 EP12305913A EP12305913A EP2573782A1 EP 2573782 A1 EP2573782 A1 EP 2573782A1 EP 12305913 A EP12305913 A EP 12305913A EP 12305913 A EP12305913 A EP 12305913A EP 2573782 A1 EP2573782 A1 EP 2573782A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rod
- connecting rod
- protection device
- shaft
- axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/48—Contacts characterised by the manner in which co-operating contacts engage by sliding with provision for adjusting position of contact relative to its co-operating contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
- H01H3/46—Driving mechanisms, i.e. for transmitting driving force to the contacts using rod or lever linkage, e.g. toggle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
- H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
- H01H1/42—Knife-and-clip contacts
Definitions
- the present invention relates to an electrical protection apparatus comprising a fixed electrical contact and a mechanism adapted to drive a rudder carrying a movable electrical contact between a first position in which the aforementioned movable contact and the fixed contact are closed and a second position in which the movable contact and the fixed contact are separated, by means of a control rod of the mechanism cooperating with a driving rod of the operating shaft of the rudder.
- the position of the spreaders in such devices has a dispersion due to manufacturing tolerances.
- the present invention solves this problem and proposes an electrical protection apparatus in which these dispersion problems are solved, this contact area being made reliable.
- the subject of the present invention is an electrical protection apparatus of the kind mentioned above, this apparatus being characterized in that it comprises means for adjusting the rotational position of the rudder when the rudder is in the first position. aforesaid line, said adjustment device being interposed between the above-mentioned control rod and drive rod, and comprising first means for adjusting the position of the drive rod of the shaft in a predetermined position and means to maintain this drive rod in this last position.
- these adjustment means comprise a first link connected in an articulated manner by a said first one, from its ends, to the driving rod of the operating shaft and comprising at another end said second, a axis slidably mounted in a slot provided at one said first ends of a second rod freely mounted in rotation about the axis of rotation of the operating shaft of the spreader, said second connecting rod having a so-called second end hingedly connected to the control rod of the aforementioned mechanism.
- said second link is rotatably mounted around the operating shaft of the rudder.
- the axis mounted at the end of the first connecting rod cooperating with the light of the second connecting rod extends substantially perpendicular to the direction of movement of said axis in the light.
- the axis and the portion of the second connecting rod comprising the light are made of a material that makes it possible to ensure friction between the axis and that part that is sufficient to prevent the axis from sliding in the light after the adjustment of the position of the rudder, so as to maintain the relative position of the first rod relative to the second rod.
- the driving rod of the maneuvering shaft of the rudder is secured in rotation with the drive shaft of the rudder by means of a first toothing provided on the drive rod cooperating with a second set of teeth. on the maneuvering shaft.
- the means for holding the rudder in the aforementioned position comprise means for compressing the first connecting rod against the second connecting rod.
- these compression means comprise a screw system on the shaft forming a nut.
- it is a medium-voltage electrical appliance for grounding.
- a rudder 1 supporting a movable contact 2 belonging to a medium voltage electrical protection device according to the invention.
- This rudder 1 is rotated by means of an operating shaft 3 by means of a mechanism comprising a control rod 4.
- This control rod 4 is intended to drive a drive rod 5 of the shaft operating mechanism 3 of the rudder 1 between a first position in which the rudder is in a first so-called line position in which its movable contact 2 is in contact with a fixed contact 6 of the apparatus, and a second position in which this moving contact 2 and this fixed contact 6 are separated.
- the drive rod 5 is driven by the control rod 4 according to the invention by means of an adjusting device.
- This adjusting device comprises a first connecting rod 7 hingedly connected by one, said first 7a, of its ends, to the driving rod 5, and having at another said second end 7b, an axis 8 mounted in a light 9 provided at the so-called first end 10a of a second rod 10 whose second end 10b is hingedly connected to the control rod 4 belonging to the mechanism, this second connecting rod being mounted freely rotatable, between these two ends 10a, 10b, around the operating shaft 3 of the spreader 1.
- the displacement of the axis 8 in the slot 9 is able to cause the rotational movement of the first connecting rod 7, and therefore the driving rod 5 of the operating shaft 3, by means of teeth 11 provided on the one hand, on the driving rod 5, and on the other hand, on the operating shaft 3, which causes a change in the rotational position of the rudder 1.
- This drive rod 5 is a double rod having two parts 5a, 5b opposite connected by folding by one of their ends, these two parts being placed respectively on either side of the first 7 and the second connecting rod. 10 and being traversed by the operating shaft 3.
- This adjusting device also comprises a device for compressing the first connecting rod 7 at the articulation 7b against the second connecting rod 10, by bringing the two parts 10c, 10d of the control rod 10 back towards one another. other.
- This compression system comprises a screw 12 screwed into the shaft 8 forming a nut.
- the screwing of the screw 12 in the axis 8 compresses the rods 10c, 10d and 7 together until a sufficient clamping is obtained to maintain a relative position between the first rod 7 and the second rod 10, and thus prevent the modification of this relative position.
- the lifter 1 is brought into a so-called line position in which the movable contact 2 is in electrical contact with the fixed contact 6, via the opening / closing mechanism comprising the control rod 4. Then, when the two contacts 2.6 are closed, a more precise adjustment is made of the relative position of the two contacts by translating the axis 8 into the light 9 in the direction of one end or the other of the light, and thus driving the first rod 7 in rotation in the counter-clockwise or hourwise direction as one wants to move the drive rod 5 of the operating shaft 3 respectively clockwise or anti-clockwise -Schedule.
- the axis 8 associated with the first link 7 is located at one end of the slot 9, the end farthest from the operating shaft 3. In this position, the angle between the connecting rod 5 drive and the second rod 10 is minimum, which corresponds to a minimum displacement value of the drive rod 5 and therefore of the operating shaft 3 in the counterclockwise direction.
- the axis 8 has been moved towards the other end of the slot 9, which corresponds to a maximum value of the angle between the driving rod 5 and the second connecting rod 10, and therefore to a maximum displacement in rotation of the operating shaft 3 clockwise.
- the holding in position of the spreader 1 is achieved by tightening the screw 12 in the axis 8 so as to bring the two parts of the rod 10 towards each other, and thus obtain the compression of the first rod 7 on the second rod 10 and the locking in position of the axis 8 in the light 9.
- the invention therefore proposes a device for adjusting the rudder 1 of simple design to reduce the dispersion of the blades or pedals in the case of a multipolar device in the closed line position.
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
Description
La présente invention concerne un appareil de protection électrique comportant un contact électrique fixe et un mécanisme apte à entraîner un palonnier supportant un contact électrique mobile entre une première position dans laquelle le contact mobile et le contact fixe précités sont fermés et une seconde position dans laquelle le contact mobile et le contact fixe sont séparés, au moyen d'une bielle de commande du mécanisme coopérant avec une bielle d'entraînement de l'arbre de manoeuvre du palonnier.The present invention relates to an electrical protection apparatus comprising a fixed electrical contact and a mechanism adapted to drive a rudder carrying a movable electrical contact between a first position in which the aforementioned movable contact and the fixed contact are closed and a second position in which the movable contact and the fixed contact are separated, by means of a control rod of the mechanism cooperating with a driving rod of the operating shaft of the rudder.
La position des palonniers dans de tels appareils présente une dispersion due aux tolérances de fabrication.The position of the spreaders in such devices has a dispersion due to manufacturing tolerances.
La présente invention résout ce problème et propose un appareil de protection électrique dans lequel ces problèmes de dispersion sont résolus, cette zone de contact étant fiabilisée.The present invention solves this problem and proposes an electrical protection apparatus in which these dispersion problems are solved, this contact area being made reliable.
A cet effet, la présente invention a pour objet un appareil de protection électrique du genre précédemment mentionné, cet appareil étant caractérisé en ce qu'il comporte des moyens de réglage de la position en rotation du palonnier lorsque celui-ci est dans la première position précitée dite de ligne, ledit dispositif de réglage étant interposé entre la bielle de commande et la bielle d'entraînement précitées, et comportant des premiers moyens pour régler la position de la bielle d'entraînement de l'arbre dans une position prédéterminée et des moyens pour maintenir cette bielle d'entraînement dans cette dernière position.For this purpose, the subject of the present invention is an electrical protection apparatus of the kind mentioned above, this apparatus being characterized in that it comprises means for adjusting the rotational position of the rudder when the rudder is in the first position. aforesaid line, said adjustment device being interposed between the above-mentioned control rod and drive rod, and comprising first means for adjusting the position of the drive rod of the shaft in a predetermined position and means to maintain this drive rod in this last position.
Selon une caractéristique particulière, ces moyens de réglage comportent une première bielle reliée de manière articulée par l'une dite première, de ses extrémités, à la bielle d'entraînement de l'arbre de manoeuvre et comportant à une autre extrémité dite seconde, un axe monté à coulissement dans une lumière prévue à l'une dite première des extrémités d'une seconde bielle montée libre en rotation autour de l'axe de rotation de l'arbre de manoeuvre du palonnier, ladite seconde bielle comportant une extrémité dite seconde reliée de manière articulée à la bielle de commande du mécanisme précité.According to a particular characteristic, these adjustment means comprise a first link connected in an articulated manner by a said first one, from its ends, to the driving rod of the operating shaft and comprising at another end said second, a axis slidably mounted in a slot provided at one said first ends of a second rod freely mounted in rotation about the axis of rotation of the operating shaft of the spreader, said second connecting rod having a so-called second end hingedly connected to the control rod of the aforementioned mechanism.
Selon une autre caractéristique, la bielle dite seconde est montée libre en rotation autour de l'arbre de manoeuvre du palonnier.According to another characteristic, said second link is rotatably mounted around the operating shaft of the rudder.
Selon une autre caractéristique, l'axe monté à l'extrémité de la première bielle coopérant avec la lumière de la seconde bielle, s'étend sensiblement perpendiculairement à la direction de déplacement dudit axe dans la lumière.According to another characteristic, the axis mounted at the end of the first connecting rod cooperating with the light of the second connecting rod, extends substantially perpendicular to the direction of movement of said axis in the light.
Selon une autre caractéristique, l'axe et la partie de la seconde bielle comportant la lumière sont réalisés dans un matériau permettant d'assurer un frottement entre l'axe et cette partie suffisant pour empêcher le coulissement de l'axe dans la lumière après le réglage de la position du palonnier, de manière à maintenir la position relative de la première bielle par rapport à la seconde bielle.According to another characteristic, the axis and the portion of the second connecting rod comprising the light are made of a material that makes it possible to ensure friction between the axis and that part that is sufficient to prevent the axis from sliding in the light after the adjustment of the position of the rudder, so as to maintain the relative position of the first rod relative to the second rod.
Selon une autre caractéristique, la bielle d'entraînement de l'arbre de manoeuvre du palonnier est solidarisée en rotation avec l'arbre de manoeuvre du palonnier au moyen d'une première denture prévue sur la bielle d'entraînement coopérant avec une seconde denture prévue sur l'arbre de manoeuvre.According to another characteristic, the driving rod of the maneuvering shaft of the rudder is secured in rotation with the drive shaft of the rudder by means of a first toothing provided on the drive rod cooperating with a second set of teeth. on the maneuvering shaft.
Selon une autre caractéristique, les moyens de maintien du palonnier dans la position précitée comportent des moyens pour comprimer la première bielle contre la seconde bielle.According to another characteristic, the means for holding the rudder in the aforementioned position comprise means for compressing the first connecting rod against the second connecting rod.
Selon une autre caractéristique, ces moyens de compression comportent un système à vis sur l'axe formant écrou.According to another characteristic, these compression means comprise a screw system on the shaft forming a nut.
Selon une autre caractéristique particulière, c'est un appareil électrique moyenne tension de mise à la terre.According to another particular characteristic, it is a medium-voltage electrical appliance for grounding.
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, partielle, illustrant un palonnier supportant un contact mobile appartenant à un appareil de protection électrique selon l'invention, dans une position dite ligne de l'appareil, - La
figure 2 est une vue partielle illustrant schématiquement la zone de contact entre le contact fixe et le contact mobile, - La
figure 3 est une vue schématique illustrant le fonctionnement du dispositif de réglage selon l'invention, et - Les
figures 4 et 5 sont des vues schématiques illustrant deux positions de réglage différentes de la position de l'arbre de manoeuvre.
- The
figure 1 is a perspective view, partial, illustrating a beam supporting a movable contact belonging to an electrical protection device according to the invention, in a position called line of the apparatus, - The
figure 2 is a partial view schematically illustrating the contact zone between the fixed contact and the moving contact, - The
figure 3 is a schematic view illustrating the operation of the adjustment device according to the invention, and - The
Figures 4 and 5 are schematic views illustrating two different adjustment positions of the position of the operating shaft.
Sur la
L'entraînement de la bielle d'entraînement 5 par la bielle de commande 4 est réalisé selon l'invention par l'intermédiaire d'un dispositif de réglage. Ce dispositif de réglage comporte une première bielle 7 reliée de manière articulée par l'une, dite première 7a, de ses extrémités, à la bielle d'entraînement 5, et comportant à une autre extrémité dite seconde 7b, un axe 8 monté dans une lumière 9 prévue à l'extrémité dite première10a d'une seconde bielle 10 dont la seconde extrémité 10b est reliée de manière articulée à la bielle de commande 4 appartenant au mécanisme, cette seconde bielle étant montée librement rotative, entre ces deux extrémités 10a,10b, autour de l'arbre de manoeuvre 3 du palonnier 1. Le déplacement de l'axe 8 dans la lumière 9 est apte à entraîner le déplacement en rotation de la première bielle 7, et donc de la bielle d'entraînement 5 de l'arbre de manoeuvre 3, par l'intermédiaire de dentures 11 prévues d'une part, sur la bielle d'entraînement 5, et d'autre part, sur l'arbre de manoeuvre 3, ce qui entraîne une modification de la position en rotation du palonnier 1.The
Cette bielle d'entraînement 5 est une bielle double comportant deux parties 5a,5b en regard reliées par pliage par l'une de leurs extrémités, ces deux parties étant placées respectivement de part et d'autre de la première 7 et de la seconde bielle 10 et étant traversées par l'arbre de manoeuvre 3.This
Ce dispositif de réglage comporte également un dispositif destiné à comprimer la première bielle 7 au niveau de l'articulation 7b contre la seconde bielle 10, en ramenant les deux parties 10c, 10d de la bielle de commande 10 l'une en direction de l'autre.This adjusting device also comprises a device for compressing the first connecting
Ce système de compression comporte une vis 12 vissée dans l'axe 8 formant écrou. Le vissage de la vis 12 dans l'axe 8 comprime entre elles les bielles 10c, 10d et 7 jusqu'à l'obtention d'un serrage suffisant pour maintenir une position relative entre la première bielle 7 et la seconde bielle 10, et ainsi empêcher la modification de cette position relative.This compression system comprises a
Le fonctionnement d'un appareil de protection électrique selon une réalisation particulière de l'invention va être décrit dans ce qui suit en référence aux
Tout d'abord, le palonnier 1 est amené dans une position dite de ligne dans laquelle le contact mobile 2 est en contact électrique avec le contact fixe 6, par l'intermédiaire du mécanisme d'ouverture/fermeture comportant la bielle de commande 4. Puis, lorsque les deux contacts 2,6 sont fermés, on effectue un réglage plus précis de la position relative des deux contacts en déplaçant en translation l'axe 8 dans la lumière 9 en direction d'une extrémité ou de l'autre de la lumière, et donc en entraînant la première bielle 7 en rotation dans le sens anti-horaire ou horaire selon que l'on veut déplacer la bielle d'entraînement 5 de l'arbre de manoeuvre 3 respectivement dans le sens horaire ou dans le sens anti-horaire. Sur la
Sur la
Après ce réglage, le maintien en position du palonnier 1 est réalisé par serrage de la vis 12 dans l'axe 8 de manière à rapprocher les deux parties de la bielle 10 l'une vers l'autre, et donc obtenir la compression de la première bielle 7 sur la seconde bielle 10 et le blocage en position de l'axe 8 dans la lumière 9.After this adjustment, the holding in position of the
Ainsi, grâce à l'invention, les efforts nécessaires lors des manoeuvres de réglage, c'est-à-dire le couple exercé au niveau du palonnier 1, lesquels sont transmis au niveau du maintien du réglage, s'exercent sensiblement perpendiculairement à la lumière de réglage 9. Il y a donc une sollicitation extrêmement faible en glissement dans la lumière 9. Ainsi, après serrage du système, le déréglage par glissement dans la lumière 9 est impossible.Thus, thanks to the invention, the forces required during the adjustment maneuvers, that is to say the torque exerted at the level of the
L'invention propose donc un dispositif de réglage du palonnier 1 de conception simple permettant de réduire la dispersion des couteaux du ou des palonniers dans le cas d'un appareil multipolaire, dans la position ligne fermée.The invention therefore proposes a device for adjusting the
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1102898A FR2980624B1 (en) | 2011-09-23 | 2011-09-23 | ELECTRICAL PROTECTION APPARATUS HAVING A ROLLER SUPPORTING A MOBILE CONTACT |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2573782A1 true EP2573782A1 (en) | 2013-03-27 |
Family
ID=46604238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12305913A Withdrawn EP2573782A1 (en) | 2011-09-23 | 2012-07-26 | Electric protection apparatus comprising a tie-bar supporting a movable contact |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2573782A1 (en) |
CN (1) | CN103021693B (en) |
FR (1) | FR2980624B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112217013A (en) * | 2019-07-10 | 2021-01-12 | 东莞市大成智能装备有限公司 | Automatic contact type multi-point power supply mechanism |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0817225A1 (en) * | 1996-06-26 | 1998-01-07 | GEC Alsthom T&D AG | Multiphase circuit breaker, in particular for high voltage |
EP0853326A2 (en) * | 1996-12-20 | 1998-07-15 | ABB SACE S.p.A. | Electric circuit breaker with means for adjusting the contacts |
EP1124239A2 (en) * | 2000-02-11 | 2001-08-16 | Siemens Aktiengesellschaft | Length adjustable coupling device for circuit breakers |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2921196B1 (en) * | 2007-09-18 | 2009-12-11 | Schneider Electric Ind Sas | DEVICE FOR CONTROLLING THE OPENING AND / OR CLOSING OF ELECTRICAL CONTACTS IN AN ELECTRICAL APPARATUS AND ELECTRICAL APPARATUS COMPRISING SUCH A DEVICE |
-
2011
- 2011-09-23 FR FR1102898A patent/FR2980624B1/en active Active
-
2012
- 2012-07-26 EP EP12305913A patent/EP2573782A1/en not_active Withdrawn
- 2012-09-24 CN CN201210359394.0A patent/CN103021693B/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0817225A1 (en) * | 1996-06-26 | 1998-01-07 | GEC Alsthom T&D AG | Multiphase circuit breaker, in particular for high voltage |
EP0853326A2 (en) * | 1996-12-20 | 1998-07-15 | ABB SACE S.p.A. | Electric circuit breaker with means for adjusting the contacts |
EP1124239A2 (en) * | 2000-02-11 | 2001-08-16 | Siemens Aktiengesellschaft | Length adjustable coupling device for circuit breakers |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112217013A (en) * | 2019-07-10 | 2021-01-12 | 东莞市大成智能装备有限公司 | Automatic contact type multi-point power supply mechanism |
CN112217013B (en) * | 2019-07-10 | 2024-05-31 | 东莞市大成智能装备有限公司 | Automatic contact type multipoint power supply mechanism |
Also Published As
Publication number | Publication date |
---|---|
FR2980624A1 (en) | 2013-03-29 |
CN103021693B (en) | 2016-02-03 |
CN103021693A (en) | 2013-04-03 |
FR2980624B1 (en) | 2014-05-16 |
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