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EP2188823A1 - Tige de commutation isolante - Google Patents

Tige de commutation isolante

Info

Publication number
EP2188823A1
EP2188823A1 EP08803933A EP08803933A EP2188823A1 EP 2188823 A1 EP2188823 A1 EP 2188823A1 EP 08803933 A EP08803933 A EP 08803933A EP 08803933 A EP08803933 A EP 08803933A EP 2188823 A1 EP2188823 A1 EP 2188823A1
Authority
EP
European Patent Office
Prior art keywords
insulating
shift rod
drive element
insulating body
drive
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP08803933A
Other languages
German (de)
English (en)
Other versions
EP2188823B1 (fr
Inventor
Ralf-Reiner Volkmar
Marianne Peter
Gottfried Schuster
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
Original Assignee
Siemens AG
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP2188823A1 publication Critical patent/EP2188823A1/fr
Application granted granted Critical
Publication of EP2188823B1 publication Critical patent/EP2188823B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • H01H33/666—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
    • H01H33/666—Operating arrangements
    • H01H2033/6667—Details concerning lever type driving rod arrangements

Definitions

  • the invention relates to an insulating shift rod with a drive element for initiating a drive movement in an electrical contact system of a switching device and for generating a contact force in the closed state of the contact system with a clamping device for the drive element of the shift rod to maintain the contact ⁇ force.
  • Such an insulating switching rod is known from the prior art.
  • switchgear such as circuit breakers
  • the insulating switching rod serves on the one hand for galvani ⁇ 's separation of the drive unit from the contact system and on the other hand to initiate the Drive movement and to generate a substantially constant contact force in the closed state of the contact system.
  • the insulating shift rod comprises a tensioning device, which is arranged in a cavity of the shift rod and acts between a drive element and a housing of the shift rod, so that when closed by the tensioning device, the contact force is maintained on the contact system.
  • iso- lierenden shift rod comprises the tensioning device An ⁇ order of helical compression springs, by which the contact force is generated.
  • the helical compression spring is surrounded by a housing part, which in turn is integrated in a housing part for the shift rod, wherein both the two Housing parts and connecting and / or cover parts of the housing parts are made of insulating material.
  • the housing parts are fastened together by screw connection and to the switching device by means of a flange, as is known for example from DE 197 16 956 Al, DE 9319264 Ul or DE 9203990 Ul.
  • a clamping connection is known from DE 3742459 A1. This represents a particularly complex and complex construction.
  • Object of the present invention is to provide an insulating shift rod of the type mentioned in such a way that it is simple to assemble and mount, with no torsion moments should be introduced into the switch contact system during assembly.
  • the switch rod can be mounted in the switching device due to the pre ⁇ Spannfederkraft the tensioning device quasi one piece movable and can only be disassembled again in their disassembled from the interrupter state by means of targeted external force and torque introduction.
  • the plug-and-detent connection the reduction of insulating material of the shift rod on two insulator. Be ⁇ dingt by avoiding necessary in the prior art metal parts the insulating switching rod according to the invention (also called Isolierschaltstange) easily establishes ⁇ adjustable and inexpensive.
  • a possible simple embodiment of the invention provides that the plug-and-detent connection is designed in the form of a bayonet closure. As a result, a simple and quick to manufacture and releasable mechanical connection of shift rod and drive element is possible. These are connected by nesting and twisting each other and pressed against each other. In addition, a catch can be provided to secure the connection.
  • the switching rod and the drive element are each surrounded by an associated insulating body, which are plugged into one another and locked together.
  • an associated insulating body which are plugged into one another and locked together.
  • two insulating or insulating parts are required, in which one or more spring elements, in particular helical compression springs can be inserted as a clamping device.
  • the two insulating bodies in a simple manner in casting, injection molding or other suitable method for producing the complex body geometry can be produced.
  • one of the insulating body, in particular the surrounding the switching rod insulator is fixed and thus stored stationary and the surrounding the drive element Iso ⁇ lier emotions movably mounted.
  • the drive element in a simple manner by handling a single movable insulating body, the up on the stationary insulator or used and on or in this longitudinally movable and rotatable feasible and can be latched, mounted and dismounted.
  • the clamping device is associated with one of the insulating body.
  • at least the insulating body associated with the switching rod has a cavity in which a helical compression spring arrangement is arranged as a clamping device, which comprises at least one helical compression spring arranged around the switching rod.
  • the tensioning device may comprise a helical compression spring arranged around the drive element.
  • a plurality of separate and / or nested helical compression springs can be arranged in each case around the drive element and / or the shift rod.
  • the form of a helical compression spring assembly jig may comprise separate opposing and more ge ⁇ gen concern wound and nested Schrau ⁇ bendruckfedern which jointly have a large spring force.
  • a clamping device it is possible with such a clamping device to produce large contact forces of 3500 N to 5000 N at a working ⁇ stroke between 0 mm and 5 mm with a compact size, the helical compression spring arrangement an average spring rate of 200 N / mm at an unstretched length of about 100 mm and at a given inner and outer coil diameter.
  • a buckling safety of the helical compression spring assembly is substantially increased because one or more mutually opposed helical compression springs are stably guided or the counter-wound helical compression springs mutually stabilize against buckling, whereby the wear of the device is reduced.
  • the helical compression spring assembly also has no edges, so that friction effects on the wall of the cavity are reduced and the wear of the Spring is lowered.
  • helical compression springs compared to previously conventional disc springs on a flatter characteristic with a comparatively constant contact force in the wake.
  • the two insulating body are provided in a further advantageous embodiment on the inside and / or outside with locking grooves and / or snap-in hooks.
  • the insulating body are provided with mutually corresponding locking grooves and latching hooks which engage positively and non-positively in the inserted and latched state.
  • reinforcing elements eg. B. star-shaped integrated metallic struts, be provided.
  • guide grooves can additionally be provided on at least one of the insulator, in particular on the stationary insulator inside or outside.
  • the guide grooves can be provided with a suitable lubricant.
  • the locking grooves can also serve as guide grooves.
  • FIG 1 shows a pole of a switching device with a ⁇ he inventive insulating switching rod drive element
  • FIG 2 show a detailed view of the insulating switching rod according to the invention with a drive element, said associated one another pluggable and lockable Iso ⁇ lier Economics with the inside locking andWhensnu- th,
  • FIG. 3 shows a detail view of the insulating switching rod according to the invention with drive element, wherein these have one another plug-in and latchable insulating bodies with outside locking andSystemsnu ⁇ th,
  • FIG. 4 shows a detailed view of the insulating switching rod according to the invention with drive element, wherein these associated one another pluggable and latchable glo ⁇ ckenförmige insulator having inside locking and guide grooves, and
  • FIG. 5 to 8 schematically in longitudinal section an embodiment of an insulating shift rod according to the invention with drive element, which can be connected to one another by means of a bayonet lock plug and latch connection of shift rod and drive element in different plug and detent positions.
  • FIG. 1 shows a switch pole 1 of a circuit breaker known as such for switching or interrupting currents of a polyphase alternating current network.
  • the switch pole 1 comprises an insulating housing 2, in which a first closing piece 3 and a second, not shown An ⁇ final piece for connection to figuratively not shown busbars or output conductor of the switching device are arranged.
  • a drive unit 4 is vorgese ⁇ hen.
  • an electrically conductive connection via the contact system of the vacuum interrupter 5 by means of, for example, designed as a magnetic drive unit 4 can be prepared or separated.
  • an unillustrated moving contact element of the vacuum interrupter tube 5 is movable by means of an insulating switching rod 7, which comprises a conductive connecting rod 6, with a drive element 8 (referred to below as drive bolt 8) designed as a drive bolt.
  • the drive unit 4 engages in order to initiate the drive movement, in particular a translational movement and / or a rotational movement in the drive bolt 8.
  • the insulating shift rod 7 includes the connecting rod 6.
  • the insulating shift rod 7 and the drive bolt 8 are each of an associated
  • Insulating body 9 and 10 surrounded.
  • the insulating body 9 and 10 are made of insulating material.
  • the connecting rod 6 and the drive pin 8 are part of the insulating shift rod 7, which will be explained in more detail below with reference to Figures 2 to 8.
  • the insulating shift rod 7 is mechanically coupled to the drive unit 4 via the drive pin 8, via which a drive movement is introduced into the moving contact element of the vacuum interrupter 5.
  • Figure 2 shows the insulating shift rod 7 with drive pin 8 of Figure 1 in a detailed view.
  • the insulating shift rod 7 comprises the insulating body 9, in which the connecting rod 6 is cast.
  • the insulating body 10 of the drive pin 8 is cast.
  • the insulating body 9 has a cylindrical cavity 11, which is closed by means of the other insulating body 10.
  • the cast-in in the insulating body 9 connecting rod 6 and cast in the Iso ⁇ lier Economics 10 drive pin 8 extend surrounded by the insulating material from the respective bottom of the insulator 9 and 10 out cylindrically.
  • the drive bolt 8 also has a connection-like portion 12, which serves to receive a Anschlußele ⁇ not shown detail management.
  • the two insulating body 9 and 10 are plug-in or snap-in connection 13 in one another or plugged together and locked together.
  • the insulating body 9 is stationary with the connected to the vacuum interrupter 5 connecting rod 6 and thus executed fixed.
  • the Iso ⁇ lier emotions 10 with the drive pin 8 is designed to be movable, in particular longitudinally movable and rotatable.
  • the cavity 11 at its open end 13 to an introduced in the wall of the solid insulating body 9, for example segment ⁇ partially circumferential groove-shaped and serving as a locking groove 14 from ⁇ savings.
  • the movable insulating body 10 has for this purpose a serving as a latching hook 15 projection on, which is guided in the locking groove 14 and can be latched in an end position.
  • the locking groove 14 limited by the height of the movement of the longitudinally movable and rotatably guided in the locking groove 14 insulator 10 and thus serves as a stop element.
  • the height of the locking groove 14 is chosen so that it is substantially greater than the height of the latching hook 15.
  • the height or the course of the locking groove 14 is selected such that by means of the clamping device 18, a biasing force is set.
  • a screw bendruckfederan angel hereinafter called trim directionalentikfederan- 18
  • trim SLentikfederan- 18 a screw bentigfederan angel arranged with at least one of the SSentikfe ⁇ F.
  • the helical compression spring assembly 18 is biased at a single helical compression spring F between a spring plate 16 arranged in the bottom region of the cavity 11 and a further spring plate 17 arranged in the bottom region of the insulating body 10.
  • the helical compression spring F has an inner diameter on which the outer diameter of the cylindrical elevations corresponds to the bottom regions of the two insulating bodies 9 and 10, so that the helical compression spring F is guided on the inner wall of these elevations.
  • the helical compression spring assembly 18 may include two separate helical compression springs Fl and F2, which are opposite to each other on the connecting rod 6 and arranged the on ⁇ drive pin 8 and moved towards each other upon actuation of the drive pins 8 and are biased.
  • the locking groove 14 is placed on the fixed insulating body 9 on the outside in its wall.
  • the movable insulating body 10 has with the locking groove 14 corresponding locking hooks 15 which engage around the fixed insulating body 10 and are guided in the locking groove 14 longitudinally movable and rotatable in this latched.
  • the insulating body 10 also has a cavity 19.
  • the two insulators 9 and 10 are executed in the manner of nested bells, wherein in the inner wall of the stationary insulating body 9, the locking groove 14 is introduced, in which a projection of the Isolierkör ⁇ pers 10 as latching hooks 15 is guided longitudinally movable and rotatable and latched.
  • FIGS. 5 to 8 show a schematic longitudinal section
  • the latching hooks 15 are radially from the movable insulating body 10.
  • the two insulators 9 and 10 are, as shown in Figure 6, inserted in the insertion direction to a stop into each other and then at least one of the two insulator 9 or 10 or both mutually up to a
  • Plug and latch connection 13 is a simple and quickly producible and releasable mechanical connection of shift rod 7 and drive pin 8 allows.
  • FIG. 5 to 8 embodiment of the male and female connection 13 is an embodiment, wherein the number, type, shape and / or the course of latching hooks 15 and / or locking grooves 14 may vary.
  • connection element 13 plug-and-lock connection

Landscapes

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

Abstract

L'invention concerne une tige de commutation (7) isolante comprenant un élément d'entraînement (8) destiné à imprimer un mouvement d'entraînement à un système de contact électrique d'un appareil de commutation et à générer une force de contact lorsque le système de contact est à l'état fermé. Un dispositif de tension (18) destiné à l'élément d'entraînement (8) de la tige de commutation (7) permet de maintenir la force de contact. L'objectif de l'invention est de perfectionner cette tige de commutation (7) de sorte qu'elle dispose d'une plus grande force de contact tout en présentant une structure compacte et garantisse des propriétés élastiques constantes et un faible niveau d'usure sur toute sa durée de vie. À cet effet, la tige de commutation (7) et l'élément d'entraînement (8) peuvent être reliés directement ou indirectement au moyen d'une connexion à enfichage et à encliquetage (13).
EP08803933.4A 2007-09-11 2008-09-10 Tige de commutation isolante Active EP2188823B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007044244 2007-09-11
PCT/EP2008/061966 WO2009034092A1 (fr) 2007-09-11 2008-09-10 Tige de commutation isolante

Publications (2)

Publication Number Publication Date
EP2188823A1 true EP2188823A1 (fr) 2010-05-26
EP2188823B1 EP2188823B1 (fr) 2015-08-26

Family

ID=40050049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08803933.4A Active EP2188823B1 (fr) 2007-09-11 2008-09-10 Tige de commutation isolante

Country Status (3)

Country Link
US (1) US8309872B2 (fr)
EP (1) EP2188823B1 (fr)
WO (1) WO2009034092A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2278603B1 (fr) * 2009-07-20 2018-09-12 ABB Schweiz AG Procédé de fabrication d'une borne de courant pour un élément de pôle intégré
EP2460637B1 (fr) 2010-12-03 2013-11-13 ABB Technology AG Tige de poussée d'un interrupteur sous vide et son procédé de fabrication
KR101786518B1 (ko) * 2011-04-27 2017-10-18 엘에스산전 주식회사 가스 절연 차단기용 소호부
CN102420073B (zh) * 2011-08-09 2014-02-19 北京双杰电气股份有限公司 双向负荷绝缘拉杆
US10290436B1 (en) 2013-03-15 2019-05-14 Innovative Switchgear IP, LLC Insulated interrupter
DE102013221910A1 (de) * 2013-10-29 2015-04-30 Siemens Aktiengesellschaft Elektrischer Schalter
CN103824724B (zh) * 2014-03-08 2016-06-15 浙江华仪电器科技有限公司 一种双向绝缘拉杆
US9396896B2 (en) * 2014-06-09 2016-07-19 Eaton Corporation Modular vacuum interruption apparatus
NO3104390T3 (fr) * 2015-06-11 2018-01-06
DE102017212066A1 (de) * 2017-07-14 2019-01-17 Siemens Aktiengesellschaft Kontaktanpressanordnung
JPWO2024189809A1 (fr) * 2023-03-15 2024-09-19

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DE3742459C2 (de) 1987-12-15 1994-06-16 Asea Brown Boveri Antriebsvorrichtung für einen elektrischen Mittelspannungs- oder Hochspannungsschalter
DD270172A1 (de) 1988-03-11 1989-07-19 Muskau Schaltgeraetewerk Antriebseinrichtung fuer vakuumschalterpole
DE9203990U1 (de) 1992-03-25 1992-07-02 ABB Patent GmbH, 6800 Mannheim Mitnehmerverbindung
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Also Published As

Publication number Publication date
WO2009034092A1 (fr) 2009-03-19
US8309872B2 (en) 2012-11-13
US20100307893A1 (en) 2010-12-09
EP2188823B1 (fr) 2015-08-26

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