EP1999768B1 - Isolierende schaltstange mit einen, aus mehrere gegenläufig gewickelte schraubendruckfedern bestehende, kontaktdruckanordnung - Google Patents

Isolierende schaltstange mit einen, aus mehrere gegenläufig gewickelte schraubendruckfedern bestehende, kontaktdruckanordnung Download PDF

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Publication number
EP1999768B1
EP1999768B1 EP07726925.6A EP07726925A EP1999768B1 EP 1999768 B1 EP1999768 B1 EP 1999768B1 EP 07726925 A EP07726925 A EP 07726925A EP 1999768 B1 EP1999768 B1 EP 1999768B1
Authority
EP
European Patent Office
Prior art keywords
helical compression
compression spring
insulating
drive
switching rod
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
EP07726925.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1999768A1 (de
Inventor
Ralf-Reiner Volkmar
Thomas Erk
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
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 EP1999768A1 publication Critical patent/EP1999768A1/de
Application granted granted Critical
Publication of EP1999768B1 publication Critical patent/EP1999768B1/de
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
    • 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
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • 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 for initiating a drive movement in a moving contact of 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 arranged in a cavity for a drive element of the shift rod for maintaining the contact force, wherein the tensioning device is a helical compression spring arrangement includes.
  • Such an insulating shift rod is made of DE 42 41 926 A1 known.
  • the insulating switching rod serves on the one hand for galvanic separation of the drive unit from the contact system and on the other hand to initiate the drive movement and for generating 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.
  • Object of the present invention is to provide an insulating shift rod of the type mentioned in such a way that constant contact forces and low wear throughout the life are guaranteed.
  • the helical compression spring arrangement comprises a plurality of oppositely wound helical compression springs which are nested one inside the other.
  • the helical compression spring assembly is designed as a helical compression spring package, wherein the plurality of counter-wound and nested helical compression springs have a total of a large spring force.
  • a helical compression spring arrangement it is possible with such a helical compression spring arrangement to produce large contact forces of 3,500 to 5,000 N at a working stroke between 0 and 5 mm with a compact construction volume, wherein the helical compression spring arrangement has an average spring rate of 200 N / mm.
  • a first helical compression spring of the helical compression spring arrangement has an outer diameter which corresponds to an inner diameter of the cavity.
  • the drive element has a drive bolt, wherein a second helical compression spring having an outer diameter which is smaller than the inner diameter of the first helical compression spring, an inner diameter corresponding to an outer diameter of the drive pin.
  • a guidance of the helical compression spring arrangement is ensured on the drive bolt, which further increases the buckling resistance of the helical compression spring arrangement and the wear is reduced .
  • a mutual stabilization of the first and the second helical compression spring ensures each other, whereby also the buckling security is increased.
  • the connecting rod 6 is part of the insulating shift rod 10, which with respect to the FIG. 2 will be explained in more detail below.
  • the insulating shift rod 10 is mechanically coupled to a drive unit, not shown figuratively, via which a drive movement in the moving contact of the vacuum interrupter 5 is initiated.
  • FIG. 2 shows the insulating shift rod 10 from FIG. 1 in a detailed view.
  • the insulating shift rod 10 comprises an insulating body 11 in which the connecting rod 6 is poured.
  • a likewise cast into the insulating body 11 housing part 12 has a cylindrical cavity 13, which is closed by a cover plate 14.
  • Through an opening 15 in the cover plate 14 extends through a drive element 16 in the form of a drive pin 16, which has at its first end 17 a connecting part 18 which is designed for connection to the drive unit of the switching device.
  • the drive pin 16 further has a flange-like portion 19 which has an inner diameter which is slightly smaller than the inner diameter of the cavity 13, so that the drive pin 16 is guided by means of the flange 19 on the wall of the cavity 13.

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
  • Position Input By Displaying (AREA)
  • Switches With Compound Operations (AREA)
EP07726925.6A 2006-03-29 2007-03-15 Isolierende schaltstange mit einen, aus mehrere gegenläufig gewickelte schraubendruckfedern bestehende, kontaktdruckanordnung Active EP1999768B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006015308A DE102006015308A1 (de) 2006-03-29 2006-03-29 Isolierende Schaltstange
PCT/EP2007/052435 WO2007113089A1 (de) 2006-03-29 2007-03-15 Isolierende schaltstange mit einen, aus mehrere gegenläufig gewickelte schraubendruckfedern bestehende, kontaktdruckanordnung

Publications (2)

Publication Number Publication Date
EP1999768A1 EP1999768A1 (de) 2008-12-10
EP1999768B1 true EP1999768B1 (de) 2013-10-30

Family

ID=38089126

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07726925.6A Active EP1999768B1 (de) 2006-03-29 2007-03-15 Isolierende schaltstange mit einen, aus mehrere gegenläufig gewickelte schraubendruckfedern bestehende, kontaktdruckanordnung

Country Status (7)

Country Link
US (1) US20100078302A1 (zh)
EP (1) EP1999768B1 (zh)
CN (1) CN101395684B (zh)
DE (1) DE102006015308A1 (zh)
ES (1) ES2435514T3 (zh)
RU (1) RU2008142737A (zh)
WO (1) WO2007113089A1 (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009034092A1 (de) * 2007-09-11 2009-03-19 Siemens Aktiengesellschaft Isolierende schaltstange
CN101887808A (zh) * 2009-05-11 2010-11-17 上海市电力公司 基于调整绝缘拉杆的提高处理合闸弹跳效率的方法
EP2460637B1 (en) * 2010-12-03 2013-11-13 ABB Technology AG A push rod of a vacuum interrupter and method of manufacturing the same
FR2971080B1 (fr) * 2011-02-02 2013-03-01 Alstom Grid Sas Appareillage d'ampoule a vide comprenant un moyen de verrouillage
CN102737906A (zh) * 2012-07-05 2012-10-17 厦门明翰电气股份有限公司 一种断路器新型绝缘拉杆
US10276318B1 (en) 2013-03-15 2019-04-30 Innovative Switchgear IP, LLC Insulated switch
KR101850229B1 (ko) 2013-12-26 2018-04-18 미쓰비시덴키 가부시키가이샤 개폐 장치
DE102014210587A1 (de) * 2014-06-04 2015-12-17 Siemens Aktiengesellschaft Verfahren zur Herstellung eines feststoffisolierten Schalterpols und feststoffisolierter Schalterpol
DE102017212066A1 (de) * 2017-07-14 2019-01-17 Siemens Aktiengesellschaft Kontaktanpressanordnung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3025375A (en) * 1960-04-04 1962-03-13 Gen Electric Electric circuit breaker having a sealed interrupting unit
DE1939642B2 (de) * 1969-08-04 1975-01-09 Standard Elektrik Lorenz Ag, 7000 Stuttgart Auf linearem Druck basierender Schalter für prellfreies Schalten
DE2118275A1 (de) * 1971-04-15 1972-10-26 SABA, Schwarzwalder Apparate Bau Anstalt August Schwer Sohne GmbH, 7730 Vilhngen P Druckschalter mit einem Schalt kontakte tragenden Schieber
NL157739B (nl) * 1975-07-21 1978-08-15 Hazemeijer Bv Los inschakelapparaat voor een elektrische schakelaar.
US4343030A (en) * 1978-09-06 1982-08-03 Mcgraw-Edison Company Load break switch
DE8108234U1 (de) * 1981-03-20 1982-02-04 Franz Kirsten Elektrotechnische Spezialfabrik, 6530 Bingen Elektrischer Kontaktschalter
DE3609127A1 (de) * 1986-03-19 1987-10-01 Schulte Elektrotech Tastschalter
DE4133091C2 (de) * 1991-09-30 1995-06-01 Siemens Ag Vakuumschalter mit einer Antriebsvorrichtung und einer Polantriebseinheit
KR940000049Y1 (ko) * 1991-12-13 1994-01-05 금성계전 주식회사 진공차단기의 아크방지용 개폐장치
JP3589061B2 (ja) * 1999-01-25 2004-11-17 株式会社日立製作所 真空開閉装置及び真空開閉装置の開閉方法
FR2808117B1 (fr) * 2000-03-31 2003-01-24 Schneider Electric Ind Sa Appareillage electrique de coupure comportant une ampoule a vide et une liaison electrique flexible

Also Published As

Publication number Publication date
DE102006015308A1 (de) 2007-10-11
CN101395684A (zh) 2009-03-25
CN101395684B (zh) 2010-12-08
ES2435514T3 (es) 2013-12-20
WO2007113089A1 (de) 2007-10-11
EP1999768A1 (de) 2008-12-10
US20100078302A1 (en) 2010-04-01
RU2008142737A (ru) 2010-05-10

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