EP0161349A2 - Interrupteur à vide - Google Patents

Interrupteur à vide Download PDF

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Publication number
EP0161349A2
EP0161349A2 EP84116492A EP84116492A EP0161349A2 EP 0161349 A2 EP0161349 A2 EP 0161349A2 EP 84116492 A EP84116492 A EP 84116492A EP 84116492 A EP84116492 A EP 84116492A EP 0161349 A2 EP0161349 A2 EP 0161349A2
Authority
EP
European Patent Office
Prior art keywords
actuating rod
vacuum switch
switch according
rocker
metal strips
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
EP84116492A
Other languages
German (de)
English (en)
Other versions
EP0161349A3 (en
EP0161349B2 (fr
EP0161349B1 (fr
Inventor
Hans-Rudolf Wüthrich
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.)
General Electric Switzerland GmbH
Original Assignee
Sprecher Energie AG
Sprecher und Schuh 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4233939&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0161349(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sprecher Energie AG, Sprecher und Schuh AG filed Critical Sprecher Energie AG
Priority to AT84116492T priority Critical patent/ATE38741T1/de
Publication of EP0161349A2 publication Critical patent/EP0161349A2/fr
Publication of EP0161349A3 publication Critical patent/EP0161349A3/de
Application granted granted Critical
Publication of EP0161349B1 publication Critical patent/EP0161349B1/fr
Publication of EP0161349B2 publication Critical patent/EP0161349B2/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
    • H01H33/6606—Terminal arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5833—Electric connections to or between contacts; Terminals comprising an articulating, sliding or rolling contact between movable contact and terminal

Definitions

  • the invention relates to a vacuum switch according to the preamble of patent claim 1.
  • the vacuum switch of switches for comparable voltages, but of a different type e.g. low-oil switches or pressure gas switches is the comparatively small switching stroke that the movable contact piece performs.
  • this enables a very compact design.
  • the actuating rod which is led out of the vacuum vessel and is electrically connected to the movable contact piece (as with switches of a different design) is to be connected to one of the fixed connections of the switch via a connecting conductor.
  • this connecting conductor consists of a copper wire or flexible current strips, which are usually provided on both ends with soldered cable lugs, which in turn are connected to the connection on the one hand and to the actuating rod on the other hand are clamped by means of a threaded bolt.
  • This connecting conductor requires some effort to manufacture and assemble and is - when carrying high currents - exposed to the magnetic forces emanating from it, with the result that the position and shape of this connecting conductor within the switch can change from switching stroke to switching stroke because of the copper wire is very flexible.
  • the actuating rod is surrounded by a non-circular (preferably corrugated) sleeve made of a highly conductive material, the inside of which touches the outside of the actuating rod along one or more of its surface lines.
  • This sleeve is in turn surrounded by a stationary tube which is arranged coaxially to the actuating rod and which is firmly connected to the one connection.
  • Compressible rods for example made of rubber, are used between the inside of the tube and the outside of the non-circular sleeve, which tend to deform the non-circular sleeve and thus keep it in contact with both the tube and the actuating rod.
  • This design probably ensures good contact between the actuating rod and the switch connection with a low frictional connection, but is associated with very great design effort and is of no benefit from the characteristic short switching strokes for vacuum switches.
  • the proposed vacuum switch has the features specified in the characterizing part of patent claim 1.
  • a vacuum switch 10 which has a vacuum vessel 11 in which both a fixed and a movable contact piece (both not shown) are accommodated.
  • the movable contact piece is connected to an electrically conductive actuating rod 12, which is sealingly but displaceably guided out of the vacuum vessel 11.
  • the actuating rod 12 is provided with an eyelet 13, to which a switch drive (not shown) is connected, in order to move the actuating rod 12 (and thus the movable contact piece) from the switch-on position shown in solid line in FIG. and vice versa) to move the stroke 14.
  • connection 15 of the vacuum switch 11 here has the shape of a solid profile with an E-shaped cross section.
  • a housing 16 surrounding the actuating rod 12 is connected to the switch drive (not shown) via an insulator 17. Busbars, cable outlets or isolating contacts (all not shown) can be connected to the connection 15.
  • the electrical connection between the actuating rod 12 and the connection 15 is perceived by a rocker 18, the construction of which is described below.
  • the rocker 18 has two elongated, exactly identically profiled, but mirror images arranged metal strips 19, 20, for example made of copper or a copper alloy, which have an essentially rectangular cross section.
  • the opposite end sections 21, 23 and 22, 24 of the metal strips 19 and 20 diverge from each other, so that the ends of the rocker 18 appear forked.
  • These end sections are shaped in such a way that they contact a cylindrical section 25 of the actuating rod on the one hand or the middle leg 26 of the connection 15 in a frictionally and resilient manner in the manner of a pair of tweezers or pliers.
  • the metal strips 19, 20 run straight and parallel to one another, the long sides of their rectangular cross section facing each other.
  • the metal strips 18, 19 from a sleeve se 27 penetrates through which a threaded bolt 28 with a screwed nut 29 leads.
  • a compression spring 31 is supported, which prestresses the metal strips 19, 20 towards one another, but a spacer 32 made of an insulating material may be present between them, which ensures that cannot touch the two metal strips 18, 19 in their central sections.
  • the compression spring 31 ensures that the end sections 21, 23 and 22, 24 of the metal strips 19, 20 touch the section 25 and the central leg 26 with sufficient contact pressure. It should also be noted that if the two metal strips 19, 20 carry a high current, this contact pressure is increased further, since the metal strips 19, 20 attract each other due to the magnetic field created as a result of the current.
  • FIGS. 3-6 differs from that of FIGS. 1 and 2 essentially in that the part of the connection 15 intended for engagement with the end sections 22, 24 of the metal strips 19, 20 does not have the shape of a rib , but the shape of a cylindrical stub, the axis of which is perpendicular to the axis of the actuating rod 12.
  • the end sections 22, 24 are concave on the sides facing one another, so that they essentially nestle against the stub 27. This eliminates the need for stops on the side of the connection 15.
  • the inner sides of the end sections 22, 24 which are in engagement with the stub 37, as in FIG. 6, are the inner sides of the end sections 21, 23 which are in engagement with the section 25, with wart-shaped elevations 38 and 39 formed by embossing Mistake.
  • These surveys 38, 39 serve to create precisely defined contact points and, moreover, they provide them for that, regardless of tolerances and dimensional inaccuracies, each metal strip 19, 20 of the rocker 18 always has two safe contact points at each end, which is important for the rated current supply.
  • the surface-specific contact pressure is increased (similar to roller contacts), while the self-cleaning of the contact surfaces remains guaranteed.
  • the rocker 18 could also be formed in one piece. If, in the preferred embodiments shown, the rocker is described as consisting of the two metal strips 19, 20, it is because the two metal strips 19, 20 can be produced very easily by punching, if necessary with simultaneous embossing, and because this results in the assembly of the Rocker 18 in the switch 11 is facilitated.

Landscapes

  • Push-Button Switches (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Cookers (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
EP84116492A 1984-05-18 1984-12-29 Interrupteur à vide Expired - Lifetime EP0161349B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84116492T ATE38741T1 (de) 1984-05-18 1984-12-29 Vakuumschalter.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH2443/84 1984-05-18
CH244384 1984-05-18
CH244384 1984-05-18

Publications (4)

Publication Number Publication Date
EP0161349A2 true EP0161349A2 (fr) 1985-11-21
EP0161349A3 EP0161349A3 (en) 1986-12-10
EP0161349B1 EP0161349B1 (fr) 1988-11-17
EP0161349B2 EP0161349B2 (fr) 1999-07-14

Family

ID=4233939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84116492A Expired - Lifetime EP0161349B2 (fr) 1984-05-18 1984-12-29 Interrupteur à vide

Country Status (5)

Country Link
US (1) US4684771A (fr)
EP (1) EP0161349B2 (fr)
JP (1) JPS60254528A (fr)
AT (1) ATE38741T1 (fr)
DE (1) DE3475243D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0439820A3 (en) * 1990-02-01 1991-11-21 Sachsenwerk Aktiengesellschaft Vacuumswitch
WO1992021168A1 (fr) * 1991-05-17 1992-11-26 Siemens Aktiengesellschaft Dispositif pour etablir un contact a une extremite d'un arbre
DE4133091A1 (de) * 1991-09-30 1993-04-08 Siemens Ag Vakuumschalter mit einer antriebsvorrichtung und einer polantriebseinheit
WO2020173894A1 (fr) * 2019-02-28 2020-09-03 Siemens Aktiengesellschaft Interrupteur à vide pour les applications à moyenne et haute tension

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10013549B4 (de) * 2000-03-20 2006-08-10 Fritz Driescher KG Spezialfabrik für Elektrizitätswerksbedarf GmbH & Co Anordnung eines Schalters
US7236151B2 (en) * 2004-01-28 2007-06-26 Kent Displays Incorporated Liquid crystal display
US7737928B2 (en) * 2003-07-02 2010-06-15 Kent Displays Incorporated Stacked display with shared electrode addressing
US20100157180A1 (en) * 2004-01-28 2010-06-24 Kent Displays Incorporated Liquid crystal display
GB2427302B (en) * 2004-01-28 2008-10-15 Incorporated Kent Displays Liquid crystal display films
CN1914031B (zh) * 2004-01-28 2011-11-16 肯特显示器公司 可悬垂液晶转移显示膜
US8199086B2 (en) 2004-01-28 2012-06-12 Kent Displays Incorporated Stacked color photodisplay
US20060202925A1 (en) * 2004-12-07 2006-09-14 William Manning Remote cholesteric display
US7791700B2 (en) * 2005-09-16 2010-09-07 Kent Displays Incorporated Liquid crystal display on a printed circuit board
JP5158771B2 (ja) * 2007-11-05 2013-03-06 株式会社明電舎 電気的接続装置
DE102008059670B3 (de) * 2008-11-26 2010-06-17 Siemens Aktiengesellschaft Vakuumschalter mit beidseitig fest verschienten Anschlussklemmen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1070260B (fr) * 1959-12-03
US1752236A (en) * 1928-04-06 1930-03-25 Vernon A Conklin Electric switch
US3739120A (en) * 1971-07-15 1973-06-12 Mc Graw Edison Co Flexible switch support and terminal connector
DE2149437C3 (de) * 1971-09-30 1975-04-30 Siemens Ag Vakuumschaltgerät mit Kraftantrieb
NL153713B (nl) * 1972-10-27 1977-06-15 Hazemeijer Bv Vacuuemschakelaar met twee of meer schakeleenheden.
US3997747A (en) * 1972-11-20 1976-12-14 Westinghouse Electric Corporation Circuit interrupter
US3958093A (en) * 1974-05-03 1976-05-18 Westinghouse Electric Corporation Metalclad switchgear using vacuum interrupter elements with improved resilient supporting means
FR2421452A1 (fr) * 1978-03-31 1979-10-26 Pechiney Aluminium Nouvelle methode de realisation de contacts electriques sur pieces en aluminium
SU913466A2 (en) * 1979-02-06 1982-03-15 Velikolukskij Z Vysokovoltnoj Lamellar contact

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0439820A3 (en) * 1990-02-01 1991-11-21 Sachsenwerk Aktiengesellschaft Vacuumswitch
WO1992021168A1 (fr) * 1991-05-17 1992-11-26 Siemens Aktiengesellschaft Dispositif pour etablir un contact a une extremite d'un arbre
DE4133091A1 (de) * 1991-09-30 1993-04-08 Siemens Ag Vakuumschalter mit einer antriebsvorrichtung und einer polantriebseinheit
WO2020173894A1 (fr) * 2019-02-28 2020-09-03 Siemens Aktiengesellschaft Interrupteur à vide pour les applications à moyenne et haute tension
US12033813B2 (en) 2019-02-28 2024-07-09 Siemens Energy Global GmbH & Co. KG Vacuum switching device for medium- and high-voltage applications

Also Published As

Publication number Publication date
JPS60254528A (ja) 1985-12-16
DE3475243D1 (en) 1988-12-22
EP0161349A3 (en) 1986-12-10
US4684771A (en) 1987-08-04
EP0161349B2 (fr) 1999-07-14
EP0161349B1 (fr) 1988-11-17
ATE38741T1 (de) 1988-12-15

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