EP3332411B1 - Dispositif de verrouillage à deux rouleaux pour un mécanisme de déclenchement d'appareil de coupure - Google Patents

Dispositif de verrouillage à deux rouleaux pour un mécanisme de déclenchement d'appareil de coupure Download PDF

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Publication number
EP3332411B1
EP3332411B1 EP16766889.6A EP16766889A EP3332411B1 EP 3332411 B1 EP3332411 B1 EP 3332411B1 EP 16766889 A EP16766889 A EP 16766889A EP 3332411 B1 EP3332411 B1 EP 3332411B1
Authority
EP
European Patent Office
Prior art keywords
roller
blocking element
lever
switching device
triggering
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
EP16766889.6A
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German (de)
English (en)
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EP3332411A1 (fr
Inventor
Bettina Kleinig
Ludvik Godesa
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
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Filing date
Publication date
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Publication of EP3332411A1 publication Critical patent/EP3332411A1/fr
Application granted granted Critical
Publication of EP3332411B1 publication Critical patent/EP3332411B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—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
    • 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
    • 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
    • H01H3/3042—Power arrangements internal to the switch for operating the driving mechanism using spring motor using a torsion spring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • 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
    • H01H2003/3036—Means for locking the spring in a charged state using of balls or rollers in the locking device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2235/00—Springs
    • H01H2235/016—Preloading

Definitions

  • the invention relates to a triggering mechanism for a switching device, in particular for low voltage devices and installations, medium voltage devices and installations and / or high voltage devices and installations.
  • the existing bolt and lever lock can be pulled out of the latched position via a magnetic coil (trigger magnet) and its magnetic field and thus release the drive lever, or the lever and the bolt are mechanically pulled over a rod from the latched position to release the drive lever ,
  • the US20090201109A1 discloses a trigger mechanism for circuit breakers, with a simple locking mechanism.
  • the DE29507811U1 discloses a latching device for a circuit breaker.
  • a release mechanism for a switching device with a drive lever, a mechanical energy storage, which is adapted to act on the drive lever and a locking device
  • the locking device preferably has a first locking element on the drive lever, a lever with a first roller and a second roller, a second locking element and a triggering element.
  • the first roller and the second roller are rotatably mounted on or on the lever.
  • the second blocking element acts in a locked position on the first roller in such a way that the lever is locked against movement in the direction of the second blocking element, ie also in the direction of the third pivot point, the pivot point of the second blocking element.
  • the second roller acts on the first blocking element such that the first blocking element prevents movement away from the first blocking element mechanical energy storage or locked to the mechanical energy storage.
  • locked position refers to both the lock of the lever against movement in the direction of the second locking element, as well as the lock of the first locking element against movement away from the mechanical energy storage or on the mechanical energy storage.
  • the second blocking element is movable by means of the triggering element such that the second blocking element moves away from the first roller from the locked position and the lever with the first roller and the second roller moves away from the locked position, in which the first blocking element is against movement is away from the mechanical energy storage or locked to the mechanical energy storage, moved away, so that the first locking element can roll over the second roller and the drive lever by the energy stored in the mechanical energy storage away from the mechanical energy storage or on these is or moves can be.
  • a trigger mechanism for a switching device is preferred in which the drive lever is rotatably mounted at a first pivot point, and the lever is rotatably mounted at a second pivot point and the second roller between the second pivot point and the first roller is arranged.
  • the second blocking element is rotatably mounted at a third pivot point.
  • the second locking element is located on the side of the third pivot point, which faces away from the first roller and the side which faces the trigger element, on a stop, which is a rotational movement of the side of the second locking element, which faces the first roller in the direction that faces away from the second roll prevents.
  • the second blocking element can be set in a rotational movement by the triggering element in such a way that the side of the second blocking element facing the first roller moves away from the first roller and toward the second roller, viewed from the third pivot point, and also on the second roller moved further past the second roller, so that the lever moves in the direction of the third pivot point, and the first locking element rolls over the second roller and so releases the first locking element, so that the drive lever by the compression spring or the mechanical energy storage in a rotational movement about the first pivot point is offset.
  • a triggering mechanism for a switching device wherein the second blocking element is biased by a torsion spring with a mechanical force.
  • Another embodiment is a triggering mechanism for a switching device, wherein the second locking element is additionally secured by a torsion spring with a mechanical force against rotation and in a unlocked position causes a restoring force on the locking element in the direction of the locked position, wherein the unlocked position is characterized thereby in that the lever is not locked against movement in the direction of the second blocking element and that the first blocking element is not blocked against movement away from the mechanical energy store or onto the mechanical energy store.
  • a triggering mechanism for a switching device wherein the second roller is offset from the first roller in the direction of the drive lever on the lever.
  • a trigger mechanism for a switching device wherein the second locking element in the locked position, on the side facing away from the first roller, by 0.2 ° to 0.5 ° against a vertical axis, ie the long axis of the second locking element in vertical Alignment, tilted towards the stop.
  • the axis of the pawl and / or the second locking element is in the locked position, in which the pawl and / or the second locking element abuts the stop, tilted by 0.2 ° to 0.5 ° in such a way that the side of the locking element, which faces away from the first roller from the third pivot point, is rotated in the direction of the second roller.
  • the axis against which the second blocking element is tilted can also be formed by the axis through the third pivot point and the pivot point of the first roller.
  • a trigger mechanism for a switching device wherein the edges of the second locking element, which face in the locked position of the first roller, are rounded.
  • first roller and the second roller have different diameters.
  • a triggering mechanism for a switching device is preferred in which the triggering element is a triggering magnet, in particular an electromagnet or a coil, in particular a magnetic coil.
  • a triggering mechanism for a switching device wherein the triggering magnet is both mechanically and electrically actuated.
  • a triggering mechanism for a switching device in which the force required to trigger the mechanical unlocking via the triggering element to the second blocking element is less than 50N, preferably less than 30N, preferably less than 25N, more preferably 20N (+/-) 2N.
  • the second blocking element is a pawl or half-wave.
  • FIG. 1 shows a latch and the associated release mechanism from the prior art, for example, the 3TLG Siemens vacuum contactor.
  • the drive lever 2 with the pivot point of the drive lever 1 is pressed via a compression spring 5 in the direction of the switching position "off". To keep the drive lever 2 and thus the switching device in the switching position "on", the drive lever 2 is mechanically latched.
  • This latching takes place via a latch block 8 fastened to the drive lever 2. This latch block 8 is blocked by the bolt 12 in the switch position "on”.
  • the bolt 12 is part of the lever 3, wherein the lever 3 is held by means of the spring force of the torsion spring 6 in the latched position.
  • the rod 10 is guided to reduce undesirable forces in a bearing 11.
  • FIG. 2 shows in the upper portion of the schematic and basic structure of the tripping device according to the prior art.
  • the drive lever 20 is rotatably supported at the pivot point of the drive lever 1.
  • the compression spring 50 engages the drive lever 20.
  • the drive lever 20 is held by the bolt 120 in the "on” position, provided that the switch is in the latched switch position "on”.
  • the bolt 120 is mounted on the lever 30 and the lever 30 is rotatably mounted at the pivot point 40, and by the torsion spring 60, the lever is held in the latched position, or pressed into this.
  • the lever 30 can be moved out of the locked position either by means of the rod 100 or the solenoid 70, so that the drive lever 20 is released and can be moved by the compression spring 50.
  • FIG. 2 also shows the drive lever 20 in the locked position, showing the lever arm of the bolt 130, the lever arm of the spool 140, the lever arm of the rod 150, and the lateral force 160.
  • FIG. 3 shows a section through a trigger mechanism according to the invention.
  • the drive lever 112 is rotatably supported at a pivot point of the drive lever 111.
  • the drive lever 112 is locked by the second roller 1110 via the first blocking element 1116, which may be designed as a pawl, with respect to a movement away from the mechanical energy store, here a compression spring 115.
  • the locking element 1116 is fixedly connected to the drive lever 112.
  • the second roller 1110 is rotatably mounted on the lever 113.
  • the lever 113 itself is rotatably supported at the fulcrum of the lever 113, the second fulcrum 114.
  • the lever 113 In the locked position, that is, in the latched switch position "on" of the switch, the lever 113 is prevented from moving from the first blocking element 1116 via the first roller 1111 rotatably mounted on the lever 113 by a second blocking element 118.
  • the second blocking element 118 is located below the third pivot point 119, on which the second blocking element 118 is rotatably mounted, and on the side, which faces the pivot point of the lever 113, ie the second pivot point 114, against a stop 1119.
  • the stop 1119 can in principle (not shown here) also above the third pivot point 119, on which the second locking element 118 is rotatably mounted, and on the side of the second locking element 118, the pivot point of the lever 113, ie the second pivot point 114, facing away , be provided.
  • the triggering element 117 can either mechanically or electronically set the second blocking element 118 in motion or rotation.
  • the second locking member 118 is moved away from the first roller 1111 and thus releases the lever 113.
  • the end of the second locking member 118 facing the first roller 1111 may move away from the first roller 1111 and onto the second roller 1110 and, if necessary, may also move past the second roller 1110.
  • the released lever 113 is moved in the direction of the second locking member 118 and thus allows the rolling of the first locking member 1116 via the second roller 1110 of the lever 113.
  • the thus released, unlatched or unlocked drive lever 112 can now by the mechanical energy storage 115, here a compression spring 115 are rotated about the pivot point of the drive lever 111 and so move the switch in an "off" position.
  • the upper part of the FIG. 4 schematically shows the structure of FIG. 3 ,
  • the drive lever 112 is rotatably mounted at the pivot point of the drive lever 111.
  • the drive lever 112 is locked by the second roller 1110 and the spring 115 is prevented from pressing the drive lever 112 from the locked position.
  • the second roller 1110 is connected via the lever arm 113 'to the pivot point of the lever 113, ie the second pivot point 114.
  • the first roller 1111 is fixed, and the lever 113 is prevented by the second Sperrlemente 118, which acts on the first roller 1111, from moving in the direction of the second locking member 118.
  • the second locking element 118 is rotatable with the compression spring 116 and the pivot point of the second locking element 118, the third pivot 119, rotatably mounted.
  • the triggering element 117 is provided such that it can engage the second blocking element 118 and can release the lever 113 and thus the drive lever 112 via an initiated rotational movement of the second blocking element 118.
  • lever arms are shown on the side of the lever 113 and the second locking member 118.
  • the lever arm 1113 of the first roller 1111 and the lever arm 1112 of the second roller 1110 are also characterized as the lever arm 1114 of the second locking member 118 and the lever arm 1115 of the trigger member 117th
  • FIG. 5 shows a schematic diagram of the latched state of the second locking element 118, which is tilted or "overstretched" for self-locking by 0.2 ° to 0.5 °. Shown are the axis 1121 of the lever 113 and the pivot point of the lever 113, that is, the second pivot point 114, and the first roller 1111, which is held by the second locking element 118 in the latched or latched position.
  • the second locking element 118 is tilted at the third pivot point 119 of the second locking element 118 such that a self-locking results.
  • This self-locking is achieved by the fulcrum of the first roller 1111 is located on an axis with the third pivot 119 of the second locking member 118, and the stop 1119 of the second locking member 118 is provided so that in the latched position, the axis of the pawl 0.2 ° to 0.5 ° with respect to the common axis of the first roller 1111 and the third pivot 119 of the second locking member 118 is rotated. The rotation takes place on the side of the second locking member 118 from the third pivot 119, which faces the first roller 1111, in the direction opposite to the pivot point 114 of the lever 113. Shown is also the force vector 1130, which results from the twist and is responsible for the self-locking, that is, "hyperextension".

Landscapes

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

Claims (13)

  1. Mécanisme de déclenchement d'un appareil de coupure, comprenant
    un levier (112) d'entraînement,
    un accumulateur (115) d'énergie mécanique, propre à agir sur le levier (112) d'entraînement, et un système de blocage,
    dans lequel
    le système de blocage a un premier élément (1116) de blocage sur le levier (112) d'entraînement, caractérisé en ce que le système de blocage a un levier (113) ayant un premier rouleau (1111) et un deuxième rouleau (1110), un deuxième élément (118) de blocage et un élément (117) de déclenchement,
    dans lequel
    le premier rouleau (1111) et le deuxième rouleau (1110) sont montés tournant au ou sur le levier (113),
    le deuxième élément (118) de blocage agit dans une position verrouillée sur le premier rouleau (1111), de manière à ce que le levier (113) soit empêché de se déplacer en direction du deuxième élément (118) de blocage,
    le deuxième rouleau (1110) agit sur le premier élément (1116) de blocage, de manière à ce que le premier élément (1116) de blocage soit empêché de s'éloigner de l'accumulateur (115) d'énergie mécanique ou soit bloqué sur l'accumulateur (115) d'énergie mécanique, et dans lequel
    le deuxième élément (118) de blocage peut être déplacé au moyen de l'élément (117) de déclenchement, de manière à ce que le deuxième élément (118) de blocage soit, hors de la position verrouillée, éloigné du premier rouleau (1111) et de manière à ce que le levier (113) soit empêché, par le premier rouleau (1111) et par le deuxième rouleau (1110), éloigné de la position verrouillée, dans laquelle le premier élément (1116) de blocage est empêché de s'éloigner de l'accumulateur (115) d'énergie mécanique ou est bloqué sur l'accumulateur (115) d'énergie mécanique, de manière à ce que le premier élément (1116) de blocage roule sur le deuxième rouleau (1110) et que le levier (112) d'entraînement soit, par l'énergie emmagasinée dans l'accumulateur (115) d'énergie mécanique, éloigné de l'accumulateur (115) d'énergie mécanique ou en soit rapproché.
  2. Mécanisme de déclenchement d'un appareil de coupure suivant la revendication 1,
    caractérisé en ce que
    l'accumulateur (115) d'énergie mécanique est un ressort (115) de compression.
  3. Mécanisme de déclenchement d'un appareil de coupure suivant l'une des revendications 1 ou 2,
    caractérisé en ce que
    le levier (112) d'entraînement est monté tournant en un premier point (111) de rotation, et dans lequel le levier (113) est monté tournant en un deuxième point (114) de rotation et le deuxième rouleau (1110) est monté entre le deuxième point (114) de rotation et le premier rouleau (1111), dans lequel
    le deuxième élément (118) de blocage est monté tournant en un troisième point (119) de rotation, dans lequel le deuxième élément (118) de blocage s'applique du côté du troisième point (119) de rotation, qui est loin du premier rouleau (1111), à une butée, qui empêche un mouvement de rotation du côté du deuxième élément (118) de blocage, qui est tourné vers le premier rouleau (1111), dans la direction qui s'éloigne du deuxième rouleau (1110), dans lequel le deuxième élément (118) de blocage peut être mis en un mouvement de rotation par l'élément (117) de déclenchement, de manière à ce que le côté, tourné vers le premier rouleau (1111), du deuxième élément (118) de blocage s'éloigne du premier rouleau (1111) et se rapproche du deuxième rouleau (1110), de sorte que le levier (113) se déplace en direction du troisième point (119) de rotation et
    le premier élément (1116) de blocage roule sur le deuxième rouleau (1110) et libère ainsi le premier élément (1116) de blocage, de sorte que le levier (112) d'entraînement peut, par le ressort de compression ou par l'accumulateur (115) d'énergie mécanique, être mis en un mouvement de rotation autour du premier point (111) de rotation.
  4. Mécanisme de déclenchement d'un appareil de coupure suivant l'une des revendications précédentes,
    caractérisé en ce que
    le deuxième élément (118) de blocage est précontraint par une force mécanique par un ressort (116) de torsion.
  5. Mécanisme de déclenchement d'un appareil de coupure suivant l'une des revendications 1 à 3,
    caractérisé en ce que
    le deuxième élément (118) de blocage est, par un ressort (116) de torsion ayant une force mécanique, empêché supplémentairement de tourner et, dans une position déverrouillée, une force de rappel s'applique à l'élément (118) de blocage dans la direction de la position verrouillée, la position déverrouillée se caractérisant par le fait que le levier (113) n'est pas empêché de se déplacer en direction du deuxième élément (1118) de blocage et par le fait que le premier élément (1116) de blocage n'est pas empêché de s'éloigner de l'accumulateur (115) d'énergie mécanique ou de se rapprocher de l'accumulateur (115) d'énergie mécanique.
  6. Mécanisme de déclenchement d'un appareil de coupure suivant l'une des revendications précédentes,
    caractérisé en ce que
    le deuxième rouleau (1110) est, par rapport au premier rouleau (1111), décalé sur le levier (113) en direction du levier (112) d'entraînement.
  7. Mécanisme de déclenchement d'un appareil de coupure suivant l'une des revendications 3 à 6,
    caractérisé en ce que
    le deuxième élément (118) de blocage est basculé dans la position verrouillée, du côté éloigné du premier rouleau (1111), de 0,2° à 0,5° par rapport à un axe vertical en direction de la butée (1119).
  8. Mécanisme de déclenchement d'un appareil de coupure suivant l'une des revendications précédentes,
    caractérisé en ce que
    les bords du deuxième élément (118) de blocage, qui sont tournés dans la position verrouillée vers le premier rouleau (1111), sont arrondis.
  9. Mécanisme de déclenchement d'un appareil de coupure suivant l'une des revendications précédentes,
    caractérisé en ce que
    le premier rouleau (1111) et le deuxième rouleau (1110) ont des diamètres différents.
  10. Mécanisme de déclenchement d'un appareil de coupure suivant l'une des revendications précédentes,
    caractérisé en ce que
    l'élément (117) de déclenchement est un aimant (117) de déclenchement, notamment un électroaimant.
  11. Mécanisme de déclenchement d'un appareil de coupure suivant la revendication 10,
    caractérisé en ce que
    l'aimant (117) de déclenchement peut être actionné tant mécaniquement qu'également électriquement.
  12. Mécanisme de déclenchement d'un appareil de coupure suivant la revendication 11,
    caractérisé en ce que
    la force nécessaire, pour déclencher le déverrouillage mécanique par l'élément (117) de déclenchement, sur le deuxième élément (118) de blocage est plus petite que 50N, de préférence plus petite que 30N, de préférence plus petite que 25N, d'une manière encore plus préférée de 20N (+/-) 2N.
  13. Mécanisme de déclenchement d'un appareil de coupure suivant l'une des revendications précédentes,
    caractérisé en ce que
    le deuxième élément (118) de blocage est un cliquet (118) ou un demi-arbre.
EP16766889.6A 2015-10-01 2016-09-09 Dispositif de verrouillage à deux rouleaux pour un mécanisme de déclenchement d'appareil de coupure Active EP3332411B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015219041.2A DE102015219041B4 (de) 2015-10-01 2015-10-01 Doppelrollensperre für einen Auslösemechanismus für ein Schaltgerät
PCT/EP2016/071246 WO2017055053A1 (fr) 2015-10-01 2016-09-09 Dispositif de verrouillage à deux rouleaux pour un mécanisme de déclenchement d'appareil de coupure

Publications (2)

Publication Number Publication Date
EP3332411A1 EP3332411A1 (fr) 2018-06-13
EP3332411B1 true EP3332411B1 (fr) 2019-07-24

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Application Number Title Priority Date Filing Date
EP16766889.6A Active EP3332411B1 (fr) 2015-10-01 2016-09-09 Dispositif de verrouillage à deux rouleaux pour un mécanisme de déclenchement d'appareil de coupure

Country Status (6)

Country Link
US (1) US10777369B2 (fr)
EP (1) EP3332411B1 (fr)
CN (1) CN108140498B (fr)
DE (1) DE102015219041B4 (fr)
RU (1) RU2679420C1 (fr)
WO (1) WO2017055053A1 (fr)

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JPH09180593A (ja) 1995-12-26 1997-07-11 Toshiba Corp 遮断器用電動ばね操作機構
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JP4833739B2 (ja) 2006-06-01 2011-12-07 株式会社日立製作所 遮断器
DE102008039187B4 (de) * 2008-08-20 2019-06-19 Siemens Aktiengesellschaft Leistungsschalter, insbesondere für Niederspannungen
JP5364522B2 (ja) * 2009-09-29 2013-12-11 株式会社東芝 開閉装置および開閉装置操作機構
DE102011086834A1 (de) * 2011-11-22 2013-05-23 Siemens Aktiengesellschaft Schaltmechanismus für ein elektrisches Schaltgerät sowie elektrisches Schaltgerät
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Publication number Publication date
US10777369B2 (en) 2020-09-15
CN108140498A (zh) 2018-06-08
WO2017055053A1 (fr) 2017-04-06
RU2679420C1 (ru) 2019-02-08
DE102015219041B4 (de) 2018-10-18
CN108140498B (zh) 2021-11-19
EP3332411A1 (fr) 2018-06-13
US20180286601A1 (en) 2018-10-04
DE102015219041A1 (de) 2017-04-06

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