EP0949643B1 - Appareil de commutation électrique, notamment appareil de commutation électromagnétique avec interrupteur à vide - Google Patents

Appareil de commutation électrique, notamment appareil de commutation électromagnétique avec interrupteur à vide Download PDF

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Publication number
EP0949643B1
EP0949643B1 EP99106099A EP99106099A EP0949643B1 EP 0949643 B1 EP0949643 B1 EP 0949643B1 EP 99106099 A EP99106099 A EP 99106099A EP 99106099 A EP99106099 A EP 99106099A EP 0949643 B1 EP0949643 B1 EP 0949643B1
Authority
EP
European Patent Office
Prior art keywords
lifting mechanism
axle guide
bearing
switching
switching device
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.)
Expired - Lifetime
Application number
EP99106099A
Other languages
German (de)
English (en)
Other versions
EP0949643A1 (fr
Inventor
Klaus Lankuttis
Konrad Binka
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.)
Eaton Industries GmbH
Original Assignee
Moeller GmbH
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 Moeller GmbH filed Critical Moeller GmbH
Publication of EP0949643A1 publication Critical patent/EP0949643A1/fr
Application granted granted Critical
Publication of EP0949643B1 publication Critical patent/EP0949643B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • 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
    • 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
    • H01H33/668—Means for obtaining or monitoring the vacuum
    • H01H33/6683—Means for obtaining or monitoring the vacuum by gettering
    • 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
    • H01H33/02—Details
    • H01H33/022—Details particular to three-phase circuit breakers

Definitions

  • the invention relates to an electrical switching device with a contact drive, in particular an electromagnetic switching device with a magnetic drive with magnetic core and armature and with at least one vacuum interrupter with a fixed contact and one with a lifting rod in direct linear Operationally connected movable contact and one with the lifting rod and the armature operatively connected rocker switch to implement the Drive movement in a switching movement of the movable contact, wherein the lifting rod at one end with the one carrying the movable contact Contact carrier is firmly connected and the contact carrier on the output side of the Vacuum switching tube in a tube bearing with respect to the longitudinal axis of the lifting rod is slidably mounted.
  • the invention has for its object, even with a non-linear control and attack of the rocker switch with the in linear operative connection the movable switching contact standing rod an improved guidance the same to achieve a non-centered encounter of the To avoid contacts.
  • an opportunity is to be created the stroke of the lifting rod when opening the switch contacts in a maximum limit extended position.
  • the invention solves this problem by design according to the invention of a generic switching device in such a way that the lifting rod their other end in a second axle guide bearing with respect to their Longitudinal axis is slidably mounted and the operative connection of the Shift paddle on the lifting rod between the tube bearing and the axle guide bearing is arranged.
  • the movable contact of the vacuum interrupter by direct connection of the lifting rod only in the tube bearing of the vacuum interrupter, but also behind the actuation point or point of application of the rocker switch on the lifting rod Transfer of the switching movement of the armature.
  • a contact pressure spring is used to control the rocker switch on the lifting rod provided coaxial to the lifting rod between the two bearings, which is supported on the side facing the tube bearing on the lifting rod and on the side facing the axle guide bearing at the fork ends supports the rocker switch, so that a movement of the rocker switch over the contact pressure spring on the lifting rod and the connected to it moving contact is transmitted.
  • a buffer is movably arranged on the lifting rod.
  • This buffer is preferably in three parts and consists of one on the rocker switch or their fork ends adjacent disc and a conical pan and Conical washer, which on the lock nut or round nut of the lifting rod in Bear the axle guide bearing.
  • the axial guidance of the lifting rod in the Additional axle guide bearings are used, for example, at the end the lifting rod firmly attached round nut as a plain bearing, the for example, is also attached as a lock nut. Because the rocker switch cannot move the lifting rod completely axially due to its pivoting movement, however, this is due to the additional second axial guidance of the lifting rod balanced in the axle guide bearing by means of the round nut or the axial guidance improved.
  • the axle guide bearing is open its inner end face adjacent to the end of the lifting rod a stop surface for the round nut to limit the maximum permissible Opening path of the lifting rod is formed when the switch contacts are opened.
  • the contact pressure spring takes off the electromechanical forces and limits the opening path of the Rod.
  • this stop is used as an emergency stop on the axle guide bearing, by striking the round nut here. This can prevent the maximum compatible opening travel of the metal bellows of the vacuum interrupter is not exceeded.
  • the round nut slides in the axle bearing guide in the axial direction of the lifting rod under the action of the actuation attack of the rocker switch, one certain friction occurs. For this reason, the round nut is preferred made of a good sliding material.
  • the axle guide bearing can in the area of the side walls of the housing Switching device, for example, by means of perpendicular to the longitudinal axis of the axle guide bearing and the lifting rod on both sides through the axle guide bearing in the Housing guided screws are attached.
  • the switching tube also includes the movable contact carrier 43 the movable contact 44, whose movement in the direction of arrow P2, P2 'by means of the metal bellows 46 sealed against the vacuum interrupter 45 is.
  • the vacuum interrupter 45 On the output side, the vacuum interrupter 45 has the tube bearing 47, in that of the contact carrier 43 in the slide bearing 47a in the switching movement direction is slidably mounted. In a linear direct operative connection with the movable contact carrier 43 and thus the movable contact 44 the lifting rod 5 attached to the end of the contact carrier 43, which in this Fastening area is also guided through the tube bearing 47.
  • the end of the lifting rod 5 is axially guided in the axle guide bearing 6 the axle guide bearing 6 in the area of the side wall of the rail support housing 4 arranged and there by means of screws 53 which are perpendicular to Longitudinal axis X of the lifting rod are arranged.
  • a contact pressure spring 7 is coaxial with Lift rod arranged, which at one end on the lock nut 55 a spring plate 56 with internal thread arranged there rests and is supported and is fixed, while at the other end the contact pressure spring 7th one longitudinally displaceable in both directions along the axis X spring plate with extension 58 on which the rocker switch with its fork ends 22a, 22b attacks.
  • the axle guide bearing 6 for the free end of the lifting rod 5 is in the figures 3a, 3b shown in more detail. It has a bearing bore 61 with an outlet opening 62 at the front end, which is smaller than the bearing bore 61, so that a contact surface 63 is formed on the inside of the end face is. 3b, the through holes 64, 65 are the Axle bearing guide for fastening the same to the rail support housing 4 can be seen.
  • a two-hole round nut 51 fastened from a slidable material.
  • the sliding surface and guide surface forming round nut at the extreme end of the lifting rod and the Hexagon nut 52 is then arranged on the inside.
  • the two-hole round nut 51 serves to guide the lifting rod in the execution bearing 6 while the hexagon nut 52 is used for stroke adjustment and by means of the round nut is countered.
  • the rocker switch 2 lies with its fork ends 22a, 22b not directly on the axle guide bearing 6, but it is a movable one Multi-part buffer arranged longitudinally displaceably on the lifting rod 5 provided between axle guide bearing 6 and rocker switch 2.
  • This buffer is composed of a disc 57, which is directly on the fork ends of the rocker switch abuts, and a conical socket 59b and conical disk 59a together.
  • This Buffer also serves to compensate for the non-linear actuation attack Switch rocker on the lifting rod via the contact pressure spring and the spring plate 56 especially when returning the lifting rod in the direction of arrow P2 ' when opening the switch contacts and swiveling the rocker switch back into the 1 shown starting position.
  • the movable contact 4, the movable Contact carrier 43, the strand 14, the nuts 54, 55, the lifting rod 5 and the two-hole round nut 51 and the hexagon nut 52 are rigid with one another connected and overall in the direction of arrow P2 to close the contacts and in the direction of arrow P2 'to open the switching contacts in the tube bearing 47 and the axle guide bearing 6 slidably mounted.
  • the closing movement is shown schematically in FIG. 5.
  • the opening movement takes place in the opposite direction, i.e. the anchor moves in the direction of the arrow P3 ', the rocker moves back due to the spring force the contact pressure spring 7 in the starting position, the lifting rod 5 with the movable contact 44 is moved back into the open position becomes.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Keying Circuit Devices (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Claims (10)

  1. Appareil de commutation électrique muni d'un mécanisme d'entraínement des contacts, notamment un appareil de commutation électromécanique muni d'un mécanisme d'entraínement magnétique comportant des noyaux magnétiques et des induits et avec au moins un interrupteur à vide comportant un contact fixe et un contact mobile qui se trouve en liaison active linéaire directe avec une tige d'excursion ainsi qu'une bascule de commutation qui se trouve en liaison active avec la tige d'excursion et l'induit pour transformer le mouvement d'entraínement en un mouvement de commutation du contact mobile, la tige d'excursion étant reliée à demeure à une extrémité avec le porte-contact qui porte le contact mobile et le porte-contact étant logé du côté de la sortie de l'interrupteur à vide dans un palier tubulaire de manière à pouvoir coulisser par rapport à l'axe longitudinal de la tige d'excursion, caractérisé en ce que la tige d'excursion (5) est logée en son autre extrémité dans un deuxième palier de guidage d'axe (6) de manière à pouvoir coulisser par rapport à son axe longitudinal (X) et le point de liaison active de la bascule de commutation (2) est disposé sur la tige d'excursion (5) entre le palier tubulaire (47) et le palier de guidage d'axe (6).
  2. Appareil de commutation selon la revendication 1, caractérisé en ce qu'un ressort presseur de contact (7) est prévu en position coaxiale par rapport à la tige d'excursion (5) entre les deux paliers (47, 6), lequel s'appuie sur la tige d'excursion du côté qui fait face au palier tubulaire (47) et s'appuie sur les extrémités en fourche (22a, 22b) de la bascule de commutation (2) du côté qui fait face au palier de guidage d'axe (6) de manière à ce qu'un mouvement de la bascule de commutation soit transmis à la tige d'excursion et au contact mobile qui y est lié par le biais du ressort de contact.
  3. Appareil de commutation selon l'une des revendications 1 ou 2, caractérisé en ce qu'un tampon (58, 59a, 59b) est monté de manière mobile sur la tige d'excursion entre les extrémités en fourche (22a, 22b) de la bascule de commutation (2) et l'extrémité de la tige d'excursion (5) logée dans le palier de guidage d'axe (6).
  4. Appareil de commutation selon la revendication 3, caractérisé en ce que le tampon se compose d'une rondelle (57) qui repose sur les extrémités en fourche (22a, 22b) de la bascule de commutation (2) et d'une rondelle concave (59b) et d'une rondelle conique (59a).
  5. Appareil de commutation selon l'une des revendications 1 à 4, caractérisé en ce qu'un écrou rond à deux trous (51) est fixé, par exemple à l'aide d'un contre-écrou (52), sur l'extrémité de la tige d'excursion (5) logée dans le palier de guidage d'axe (6) en tant que palier lisse pour guider la tige d'excursion.
  6. Appareil de commutation selon l'une des revendications 1 à 5, caractérisé en ce qu'il est prévu sur la barre d'excursion (5), dans la zone du palier de guidage d'axe (6), un écrou hexagonal (52) pour régler la course de la tige d'excursion et l'écrou rond à deux trous (51) sert à bloquer l'écrou hexagonal (52).
  7. Appareil de commutation selon l'une des revendications 1 à 6, caractérisé en ce que le palier de guidage d'axe (6) forme sur sa surface frontale intérieure voisine de l'extrémité de la barre d'excursion (5) une surface de butée (63) pour l'écrou rond à deux trous afin de limiter la course d'ouverture maximale admissible de la barre d'excursion lors de l'ouverture des contacts de commutation.
  8. Appareil de commutation selon l'une des revendications 1 à 7, caractérisé en ce que le tampon repose sur l'écrou hexagonal dans le palier de guidage d'axe (6).
  9. Appareil de commutation selon l'une des revendications 1 à 8, caractérisé en ce que l'écrou rond (51) qui forme le palier lisse est fixé à l'extrémité de la barre d'excursion et, lors du mouvement d'ouverture des contacts de commutation, limite le déplacement maximum de la barre d'excursion, sous réserve que celui-ci ne puisse pas déjà être limité par le ressort presseur de contact, en venant en butée contre la surface de butée (63) du guidage d'axe du palier de guidage d'axe (6).
  10. Appareil de commutation selon l'une des revendications 1 à 9, caractérisé en ce que le palier de guidage d'axe (6) est fixé au moyen de vis (53) insérées dans le boítier des deux côtés à travers le palier de guidage d'axe perpendiculairement par rapport à l'axe longitudinal du palier (6) et de la barre d'excursion (5).
EP99106099A 1998-03-31 1999-03-26 Appareil de commutation électrique, notamment appareil de commutation électromagnétique avec interrupteur à vide Expired - Lifetime EP0949643B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19814398A DE19814398C1 (de) 1998-03-31 1998-03-31 Elektrisches Schaltgerät, insbesondere elektromagnetisches Schaltgerät mit Vakuumschaltröhre
DE19814398 1998-03-31

Publications (2)

Publication Number Publication Date
EP0949643A1 EP0949643A1 (fr) 1999-10-13
EP0949643B1 true EP0949643B1 (fr) 2003-05-28

Family

ID=7863109

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99101052A Expired - Lifetime EP0955655B1 (fr) 1998-03-31 1999-01-22 Blindage et gitter pour tube-interrupteur sous vide et procédé de fixation du gitter au blindage
EP99106099A Expired - Lifetime EP0949643B1 (fr) 1998-03-31 1999-03-26 Appareil de commutation électrique, notamment appareil de commutation électromagnétique avec interrupteur à vide

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP99101052A Expired - Lifetime EP0955655B1 (fr) 1998-03-31 1999-01-22 Blindage et gitter pour tube-interrupteur sous vide et procédé de fixation du gitter au blindage

Country Status (3)

Country Link
EP (2) EP0955655B1 (fr)
AT (1) ATE241854T1 (fr)
DE (3) DE19814398C1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10238950B4 (de) * 2002-08-24 2008-04-10 Abb Patent Gmbh Vakuumschaltgerät
DE20321632U1 (de) 2003-05-21 2008-09-04 Abb Ag Getter für eine Vakuumschaltkammer
DE102014212583A1 (de) * 2014-06-30 2015-12-31 Siemens Aktiengesellschaft Vermeidung von Fehlausrichtungen einer Antriebsstange eines Leistungsschalters
CN110718415B (zh) * 2018-07-12 2021-11-16 平高集团有限公司 一种真空断路器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1211306B (de) * 1963-05-15 1966-02-24 Ass Elect Ind Vakuumschalter
US4032870A (en) * 1975-09-15 1977-06-28 General Electric Company Electric circuit breaker with electromagnetic-assist means for opposing magnetic contact-separating forces
NL170995C (nl) * 1978-12-01 1983-01-17 Hazemeijer Bv Vacuuemschakelaar, alsmede metalen scherm en vangstofelement daarvoor.
DE8905949U1 (de) * 1989-05-11 1990-09-13 Siemens AG, 1000 Berlin und 8000 München Mehrpoliger Vakuum-Leistungsschalter mit einer isolierenden Traganordnung für die Schaltröhren
KR940000049Y1 (ko) * 1991-12-13 1994-01-05 금성계전 주식회사 진공차단기의 아크방지용 개폐장치
FR2737805B1 (fr) * 1995-08-08 1997-08-29 Gec Alsthom T & D Sa Rupto-fusible sectionneur

Also Published As

Publication number Publication date
EP0955655A1 (fr) 1999-11-10
ATE241854T1 (de) 2003-06-15
DE19814398C1 (de) 1999-12-30
EP0955655B1 (fr) 2003-04-23
EP0949643A1 (fr) 1999-10-13
DE59905706D1 (de) 2003-07-03
DE59905131D1 (de) 2003-05-28

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