EP2394286B1 - Dispositif de déclenchement, en particulier pour interrupteur de puissance - Google Patents

Dispositif de déclenchement, en particulier pour interrupteur de puissance Download PDF

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Publication number
EP2394286B1
EP2394286B1 EP10706133.5A EP10706133A EP2394286B1 EP 2394286 B1 EP2394286 B1 EP 2394286B1 EP 10706133 A EP10706133 A EP 10706133A EP 2394286 B1 EP2394286 B1 EP 2394286B1
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EP
European Patent Office
Prior art keywords
tripping
camshaft
actuating
actuating means
spring
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.)
Active
Application number
EP10706133.5A
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German (de)
English (en)
Other versions
EP2394286A1 (fr
Inventor
Matthias Kulke
Jörg GASSMANN
Thomas Müller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
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Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP2394286A1 publication Critical patent/EP2394286A1/fr
Application granted granted Critical
Publication of EP2394286B1 publication Critical patent/EP2394286B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1072—Release mechanisms which are reset by opening movement of contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H3/3031—Means for locking the spring in a charged state
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/44—Automatic release mechanisms with or without manual release having means for introducing a predetermined time delay
    • 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
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
    • 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
    • H01H71/505—Latching devices between operating and release mechanism

Definitions

  • the invention relates to a tripping device, in particular for circuit breaker, which is at least one controllable trigger magnet with armature, which is in operative connection to a downstream trigger pawl, which is in engagement with a force acting on the circuit breaker tripping mechanism, which is coupled to a pretensioned spring serving as a power amplifier , having.
  • a triggering device having the features according to the preamble of claim 1 is of the Japanese type JP 02 719 436 B known.
  • Such power-operated tripping devices are used for the actuation of circuit breakers.
  • the circuit-breakers designed for high currents can not only switch operating currents and low overload currents, but also switch on high overload currents and short-circuit currents in the event of errors, hold these fault currents for a predetermined time and then switch them off again.
  • the overload current refers to the weakest link of the downstream of the circuit breaker, as seen in the direction of energy flow. In order to protect such downstream systems from damage due to overload or short circuit, the circuit breaker should switch off these currents in conjunction with the network protection devices within a defined time.
  • the spring forces respectively the reinforcing spring and the magnetic spring, must be increased significantly.
  • this is associated with a magnet with higher power requirements, which increases the manufacturing cost of such a triggering mechanism sensitive.
  • these measures require a larger space, which is usually not available.
  • the object of the invention now is to propose a tripping device, in particular for circuit breakers, with which the necessary actuating operations or switching functions can be realized with only small forces within the required switching time.
  • adjusting operations are in the context of the invention essentially the adjusting process of triggering a switching mechanism by means of the switch lever, the operation of an auxiliary switch preferably using an auxiliary switch pins, the return movement of the trip latch and the provision of the armature of the release provided, the time-critical main function, the triggering of Switch lock, first and at maximum speed expires.
  • To trigger the switching mechanism is thus the full spring force available, which allows higher switching forces and leads to shorter switching times.
  • Trigger the individual actuating operations, switching mechanism, actuate the auxiliary switch, return the tripping latch and the return of the armature are preferably offset in time. All adjusting operations preferably take place at least partially successively in time, ie sequentially, with a safety period lying between the end of a setting process and the beginning of a subsequent setting process. As a result, the energy transmitted to the camshaft by the spring concentrates on the actuation (s) performed at that time.
  • the decisive advantage of this invention is therefore that the tripping time of the main function, the triggering of a switching mechanism, compared to previously known solutions can be significantly shortened.
  • the tripping device according to the invention makes better use of the energy of the spring force accumulator and thus requires less electric tripping energy.
  • the actuating means can perform a linear or rotary adjusting movement.
  • at least three actuating means are provided, of which a first actuating means as a switch lock lever rotatory adjusting movement, a second actuating means as Hilfsschalterpin a linear actuating movement and a third actuating means as a triggering pawl performs a rotary actuator movement.
  • a shift lever first actuating means on a curve contour which is designed such that after taking the end position of the switch lever at a conditional by the spring force further rotational movement of the camshaft, the cam lever associated cam slides along the curve contour, wherein the angle of rotation of the camshaft significantly increased without changing the final position of the switch lever. Because of the design of the rotation angle of the shaft is defined for triggering the switching mechanism via its switch lock lever, the rotation angle of the shaft must be increased to allow the other functions to run afterwards.
  • the return movement of the release pawl and the concomitant, but staggered return movement of the armature of the release magnet done only after taking the final position of the switch latch lever.
  • the movement of the camshaft is transmitted using a coupling gear to the switching mechanism or its switch lock lever.
  • the angle between the two spring suspensions and the pivot point of the camshaft according to the invention is chosen so that the spring work at a given angle of rotation of the camshaft is maximum.
  • Another practice-relevant solution further consists in that at least two triggering mechanisms are provided, which in the direction of action of force one behind the other, d. H. cascaded, are arranged.
  • the triggering pawl and a locking cam each have contours formed according to the principle of stitch point displacement, as a result of which the triggering pawl can be moved with reduced force and the latched camshaft is released more quickly.
  • FIGS. 1 to 3 show a perspective view of one and the same tripping device 1, in particular for circuit breaker, in the starting position, in the intermediate position, and in the end position.
  • the tripping device 1 according to the invention comprises a controllable triggering magnet 2 with armature 2.1, which is in operative connection with a downstream triggering pawl 6.3, which engages with a tripping mechanism acting on the power switch, which is coupled to a pretensioned spring 4 serving as a power amplifier.
  • a trigger mechanism a camshaft 5 with a plurality of cams 5.1, 5.2, 5.4 is provided.
  • Each placed on the camshaft 5 angle offset cam 5.1, 5.2 and 5.4 is associated with an actuating means 6, wherein in the triggering case at least two the respective actuating means 6.1, 6.2, 6.3 associated actuating processes run sequentially in time, so that on at least one of these actuating means 6.1, 6.2, 6.3 to complete the associated actuating operation, the full spring force is transmitted via the camshaft 5.
  • the camshaft 5 comprises three cams 5.1, 5.2 and 5.4.
  • the first cam 5.1 is in this case assigned to a first actuating means 6 designed as a switching mechanism lever 6.1.
  • the rotatably mounted switch lock lever 6.1 according to the invention has a curve contour 3, whose function will be explained in more detail later.
  • the switch lever 6.1 By means of the switch lever 6.1, the switching mechanism of a circuit breaker, not shown, is mechanically actuated or triggered.
  • the camshaft 5, the tripping 6.3, the auxiliary switch 6.2 and the trigger magnet 2 are in a not shown Housing stored.
  • the acting on the camshaft 5 and serving as a power amplifier spring 4 is also suspended in this housing. This spring 4 is biased in the initial state.
  • the armature 2.1 of the controllable release magnet 2 is in operative connection with the tripping latch 6.3, which releases a further arranged on the camshaft 5 locking cam 5.3 at extended anchor 2.1, so that the spring 4 can put the camshaft 5 in a rotary motion.
  • the operation of the tripping device 1 according to the invention is the following: In the starting position according to Fig. 1 is the trigger magnet 2 and its coils are energized.
  • the armature 2.1 is located completely within the release magnet 2.
  • the two legs comprehensive release latch 6.3 abuts with one of its two legs on the front side of the armature 2.1.
  • a Mit technicallyocke 5.4 is arranged next to the locking cam 5.3.
  • the trigger magnet 2 is energized and the armature 2.1 moves axially outward. At this time, both the tripping 6.3 and the camshaft 5 remain in their original position.
  • the tripping latch 6.3 is set in rotation and releases the locking cam 5.3 of the camshaft 5 after rotation by a few degrees so that the camshaft 5 is set in rotation by the pretensioned spring 4.
  • the switch lock lever 6.1 is brought in continuous rotational movement of the camshaft 5 in its final position, which is achieved in the example shown by turning to the right by a defined angle.
  • the first cam 5.1 runs along the curve contour 3 of the switch lever 6.1.
  • the cam 5.2 associated with the auxiliary switch pin 5.2 of the camshaft 5 reaches the auxiliary switch pin 6.2, moves it and does not actuate one illustrated auxiliary switch.
  • the provision of the release latch 6.3 and the associated provision of the armature 2.1 of the release magnet begins. 2
  • FIGS. 4 and 5 show the way or the angle of rotation of the actuators as a function of time.
  • the Fig. 4 depicts the positioning processes of the prior art; the Fig. 5 the corresponding actuating operations in the tripping device according to the invention 1.
  • increases according to Fig. 4 In the case of the armature movement and the actuating movement of the tripping latch 6.3, the path is initially progressive over time.
  • the actuation triggering a switching mechanism and pressing an auxiliary switch.
  • the provision of the release latch 6.3 and the associated return of the armature 2.1 of the release magnet 2 takes place.
  • the provided for driving the trigger mechanism spring 4 is during the rotational movement of the camshaft 5 from their spring energy and distributes these at the same time to all three or four actuating operations, connected to the disadvantages mentioned above.
  • the Fig. 6 shows a comparative diagram of the utilized spring energy according to the prior art and the tripping device 1 according to the invention under given boundary conditions.
  • the spring energy is plotted against the angle of rotation of the camshaft 5.
  • the rotation angle of the trigger shaft is smaller than the rotation angle of the camshaft according to the invention 5. This is associated with the angle of rotation associated, used spring energy, which is lower in the trip shaft of the known solutions than in the camshaft 5 of the inventive solution ,
  • the inventive added value corresponds to the available delta ⁇ E of the usable spring energy.
  • the different angles of rotation of the camshaft 5 according to the invention with respect to the conventional triggering shaft mean that in the invention on the one hand the existing Spring energy can be used more efficiently and on the other hand that the adjustment process of triggering the switching mechanism 6.1 starts both at an earlier date and completed faster.
  • the triggering device 1 is reset only after the switch lock lever 6.1 has taken its final position.

Landscapes

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

Claims (11)

  1. Dispositif de déclenchement (1), en particulier pour un interrupteur de puissance, présentant au moins un aimant de déclenchement (2) pouvant être commandé et comprenant une armature (2.1) qui est en liaison active avec un cliquet de déclenchement (6.3) disposé en aval, cliquet de déclenchement qui vient en prise avec un mécanisme de déclenchement agissant sur l'interrupteur de puissance, mécanisme de déclenchement qui est couplé à un ressort précontraint (4) servant d'amplificateur de puissance, où le mécanisme de déclenchement comprend un arbre à cames (5) comportant plusieurs cames (5.1, 5.2, 5.4), où un moyen d'actionnement (6) est associé à chaque fois à chaque came (5.1, 5.2, 5.4) décalée suivant un angle de rotation et, en cas de déclenchement, il se produit successivement dans le temps, au moins deux processus de commande associés aux moyens d'actionnement respectifs (6.1, 6.2, 6.3), de sorte que, sur au moins l'un de ces moyens d'actionnement (6.1, 6.2, 6.3), la totalité de la force du ressort est transmise par l'arbre à cames (5), pour l'achèvement du processus de commande associé, où la fonction principale à temps critique, à savoir le déclenchement d'un verrou de commutation, se déroule en premier et à vitesse maximale, caractérisé en ce qu'il est prévu, comme processus de commande, le déclenchement d'un verrou de commutation, l'actionnement d'un interrupteur auxiliaire, le mouvement de rappel du cliquet de déclenchement (6.3) et le retour à l'état initial de l'armature (2.1) de l'aimant de déclenchement (2), et en ce que le premier moyen d'actionnement (6) conçu comme un levier de verrou de commutation (6.1) présente un contour de courbe (3) qui est configuré de manière telle, que la came (5.1) associée au levier de verrou de commutation (6.1) glisse le long du contour de courbe (3) lors d'un autre mouvement de rotation de l'arbre à cames (5) dû à la force du ressort, après que le levier de verrou de commutation (6.1) s'est placé dans sa position de fin de course, où l'angle de rotation de l'arbre à cames (5) augmente nettement, sans que la position de fin de course du levier de verrou de commutation (6.1) se modifie.
  2. Dispositif de déclenchement (1) selon la revendication 1, caractérisé en ce qu'il est prévu au moins trois moyens d'actionnement (6) dont un premier moyen d'actionnement (6) est conçu comme un levier de verrou de commutation (6.1) d'un verrou de commutation, un deuxième moyen d'actionnement (6) est conçu comme une broche d'interrupteur auxiliaire (6.2) d'un interrupteur auxiliaire, et un troisième moyen d'actionnement (6) est conçu comme un cliquet de déclenchement (6.3).
  3. Dispositif de déclenchement (1) selon la revendication 1 ou 2, caractérisé en ce que les processus de commande respectifs se déroulent au moins partiellement l'un après l'autre dans le temps, c'est-à-dire de façon séquentielle, où un laps de temps de sécurité est présent entre la fin d'un processus de commande et le début d'un processus de commande qui lui succède.
  4. Dispositif de déclenchement (1) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les moyens d'actionnement (6.1, 6.2, 6.3) exécutent un mouvement de commande linéaire ou rotatif.
  5. Dispositif de déclenchement (1) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la course utile du ressort augmente sous l'effet de l'angle de rotation augmenté de l'arbre à cames (5) et, dans le cas d'une force maximale donnée, le rendement énergétique augmente fortement, par exemple est doublé.
  6. Dispositif de déclenchement (1) selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le mouvement de rappel du cliquet de déclenchement (6.3) et le mouvement de rappel de l'armature (2.1) de l'aimant de déclenchement (2), intervenant avec lui mais en étant décalé dans le temps, se produisent seulement après que le levier de verrou de commutation (6.1) s'est placé dans sa position de fin de course.
  7. Dispositif de déclenchement (1) selon l'une quelconque des revendications 1 à 6, caractérisé en ce que, dans le but d'obtenir les temps de commutation les plus courts, le premier moyen d'actionnement (6) conçu comme un levier de verrou de commutation (6.1) a complètement achevé son processus de commande, avant que d'autres processus de commande soient déclenchés par les cames (5.2, 5.4) de l'arbre à cames (5).
  8. Dispositif de déclenchement (1) selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le mouvement de l'arbre à cames (5) est transmis au levier de verrou de commutation (6.1), grâce à l'utilisation d'un engrenage couplé.
  9. Dispositif de déclenchement selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'angle formé entre les deux suspensions à ressort, et le point de rotation de l'arbre à cames (5), est choisi de manière telle, que le travail du ressort soit maximal dans le cas d'un angle de rotation donné de l'arbre à cames (5).
  10. Dispositif de déclenchement (1) selon l'une quelconque des revendications 1 à 9, caractérisé en ce qu'il est prévu au moins deux mécanismes de déclenchement qui sont disposés l'un derrière l'autre, c'est-à-dire en cascade, dans la direction de l'effet dynamique.
  11. Dispositif de déclenchement (1) selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le cliquet de déclenchement (6.3) et la came de blocage (5.3) présentent respectivement des contours configurés selon le principe du décalage par points échantillons, grâce à quoi le cliquet de déclenchement (6.3) peut être déplacé avec un déploiement de force réduit, et l'arbre à cames encliqueté (5) est libéré plus rapidement.
EP10706133.5A 2009-02-05 2010-01-22 Dispositif de déclenchement, en particulier pour interrupteur de puissance Active EP2394286B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009007586A DE102009007586A1 (de) 2009-02-05 2009-02-05 Auslösevorrichtung, insbesondere für Leistungsschalter
PCT/DE2010/000061 WO2010088875A1 (fr) 2009-02-05 2010-01-22 Dispositif de déclenchement, en particulier pour interrupteur de puissance

Publications (2)

Publication Number Publication Date
EP2394286A1 EP2394286A1 (fr) 2011-12-14
EP2394286B1 true EP2394286B1 (fr) 2015-11-11

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Application Number Title Priority Date Filing Date
EP10706133.5A Active EP2394286B1 (fr) 2009-02-05 2010-01-22 Dispositif de déclenchement, en particulier pour interrupteur de puissance

Country Status (5)

Country Link
US (1) US8547190B2 (fr)
EP (1) EP2394286B1 (fr)
CN (1) CN102308355B (fr)
DE (1) DE102009007586A1 (fr)
WO (1) WO2010088875A1 (fr)

Families Citing this family (8)

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DE102009021754B4 (de) 2009-05-13 2023-11-16 Siemens Aktiengesellschaft Hilfsauslöseeinheit für einen Leistungsschalter
JP5613027B2 (ja) * 2010-11-22 2014-10-22 株式会社東芝 遮断器の操作機構
DE102011085600B4 (de) * 2011-11-02 2024-02-08 Siemens Aktiengesellschaft Kraftverstärkungsmodul für ein elektrisches Schaltgerät, Einheit aus Kraftverstärkungsmodul und Hilfsauslöser sowie elektrisches Schaltgerät
DE112013004603A5 (de) * 2012-09-20 2015-06-11 Eaton Electrical Ip Gmbh & Co. Kg Leistungsschaltgerät
CN103794422B (zh) * 2014-01-02 2016-04-13 浙江信基电气股份有限公司 用于漏电保护插座的机械脱扣机构
EP2947673B1 (fr) * 2014-05-21 2017-01-04 ABB Schweiz AG Mécanisme de déclenchement pour dispositif de commutation faible et moyenne tension
CN104008932B (zh) * 2014-06-10 2015-12-09 大全集团有限公司 一种用于断路器的内部附件传动装置
CN109950101B (zh) * 2019-04-10 2024-03-22 宏秀电气有限公司 户外高压断路器的操作机构及户外高压断路器及使用方法

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US4620171A (en) * 1984-01-09 1986-10-28 Westinghouse Electric Corp. Molded case circuit breaker with resettable combined undervoltage and manual trip mechanism
FR2628262B1 (fr) 1988-03-04 1995-05-12 Merlin Gerin Mecanisme de commande d'un bloc auxiliaire de declenchement pour disjoncteur modulaire
FR2640423B1 (fr) 1988-12-14 1991-10-04 Merlin Gerin Mecanisme de commande d'un interrupteur differentiel multipolaire a barreau rotatif de commutation
IT1231103B (it) * 1989-08-09 1991-11-18 Sace Spa Dispositivo autocoordinato di manovra e protezione per apparecchiature elettriche.
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FR2757309B1 (fr) * 1996-12-13 1999-01-29 Schneider Electric Sa Bloc de declenchement selectif pour un disjoncteur multipolaire
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Also Published As

Publication number Publication date
DE102009007586A1 (de) 2010-08-19
CN102308355B (zh) 2014-10-22
EP2394286A1 (fr) 2011-12-14
CN102308355A (zh) 2012-01-04
US20120018287A1 (en) 2012-01-26
WO2010088875A1 (fr) 2010-08-12
US8547190B2 (en) 2013-10-01

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