EP1763888A2 - Contact de commutation pour tubes commutateurs a vide - Google Patents

Contact de commutation pour tubes commutateurs a vide

Info

Publication number
EP1763888A2
EP1763888A2 EP05769820A EP05769820A EP1763888A2 EP 1763888 A2 EP1763888 A2 EP 1763888A2 EP 05769820 A EP05769820 A EP 05769820A EP 05769820 A EP05769820 A EP 05769820A EP 1763888 A2 EP1763888 A2 EP 1763888A2
Authority
EP
European Patent Office
Prior art keywords
contact
switching contact
switching
support body
carrier
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.)
Withdrawn
Application number
EP05769820A
Other languages
German (de)
English (en)
Inventor
Wilfried Haas
Werner Hartmann
Michael RÖMHELD
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
Siemens Corp
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 EP1763888A2 publication Critical patent/EP1763888A2/fr
Withdrawn legal-status Critical Current

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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H33/6642—Contacts; Arc-extinguishing means, e.g. arcing rings having cup-shaped contacts, the cylindrical wall of which being provided with inclined slits to form a coil

Definitions

  • the invention relates to a switching contact for Vaku ⁇ umschaltröhren according to the preamble of claim 1.
  • Switching contacts for vacuum switching tubes are known from the prior art, which consist of a switching contact carrier and a contact plate, wherein the switching contact carrier a
  • Coil segment for generating a magnetic field receives, which is formed by slotting the lateral border of the cup-shaped contact carrier.
  • Such contact arrangements are described in particular in EP 0 104 384 B1 and EP 0 155 376 B1.
  • a radial or an axial magnetic field is generated, in which case in particular those arrangements with an axial magnetic field are of importance for high voltages.
  • the openings of the contact carrier in the two contacts are oriented identically.
  • AMF Axial Magnetic Field
  • the object of the invention is, by constructive improvements increase the efficiency of the contacts.
  • the outer diameter of the slotted pot wall is smaller than the diameter of the contact plate located thereon.
  • an annular support body i. an outer support body provided between the contact plate and the base of the contact carrier, i. the bottom of the pot, is inserted and surrounds the contact carrier zu ⁇ least in the slotted area.
  • an improved switching contact is demoaf ⁇ fen, the net input in particular in vacuum interrupters with axial Mag ⁇ .
  • the prior art does not disclose any suitable solution to the problem. If, in fact, the coil body is bordered by an externally circulating steel strip with only moderate conductivity, the previous production methods result in a deterioration of the switching capacity of typically about 30%, which leads to a considerable increase in size and thus more expensive vacuum interrupters.
  • the cause of this deterioration of the switching capacity lies in the partial short circuit between the two coil segments separated by a slot caused by the steel strip, the short circuit being caused by the electrically intimate contact between the steel strip and the coil segments caused by the flow of good conductive solder during the soldering process or between two adjacent coil segments is caused.
  • An inventive AMF contact with outer support body is made such that in the production between basedstütz redesign and bobbin a distance of typically one millimeter is maintained, and the outer support body is soldered only in its upper and lower edge regions with the contact system. At this gap width, a direct overlay bridges of the gap avoided by inflowing solder. If the bobbin widens in switching operation due to short-circuit disconnections, an electrical connection with only a low current-carrying capacity and comparatively high resistance forms between two coil elements, so that the contact only has a small decrease in the switching capacity due to the electrical shunt through the outer support itself learns.
  • the outer support body is chosen from an electrically nonconductive material, for example made of ceramic, or a metallic outer support body is coated on its inside with a ceramic material, then the electric shunt is completely eliminated when the coil body is being widened and the ability to see is thereby eliminated not reduced.
  • Figure 1 is a perspective view of an AMF contact pair according to the prior art
  • FIG. 2 shows a section through a contact according to the invention with outer support body.
  • FIG. 1 shows a contact pair arrangement 1 according to the prior art, which consists of two identical contacts 10, 10 '.
  • the contacts 10, 10 'each have a contact pin 11, 11' a contact carrier 12, 12 'and a contact plate 15, 15'.
  • the contact carrier 12, 12 'pot-shaped becamebil ⁇ det and has at its annular portion, which is referred to as pot wall 13, 13', straight or curved, azimuthally inclined slots 14, 14 '.
  • the slots 14, 14 ' extend on the circumference of the pot wall 13, 13' from the base, ie the Topf ⁇ bottom, to the free end of the pot wall 13, 13 '.
  • Coil segments are formed by the azimuthal slots 14, 14 ⁇ in the contact carrier 12, 12 ⁇ in which the current to be switched flows. Due to the switching current, a magnetic field is generated, which in the embodiment shown in Figure 1 orien- tation of the slots 14, 14 'is oriented in the same direction axially of the contact arrangement and te when opening the Kontak ⁇ 10 1NC ⁇ a diffuse arc causes which is indicated in the figure with LB lg.
  • the slots 14, 14 ⁇ - in contrast to figure 1 - in bei ⁇ the contacts 10, 10 ⁇ against each other extend in a different direction, a radial magnetic field results zwi ⁇ rule the contacts 10, 10 ⁇ , which in this case a kontra ⁇ hierter arc on the contact plate 15, 15 ⁇ is driven to the outside.
  • the slots in the contact plate may optionally be spiral-shaped.
  • FIG. 2 a switching contact according to FIG. 1 is modified according to the invention. Similarly, a switching pin 21, a contact carrier 22 with an annular portion 23 as a cup wall and azimuthal slots 24 and a contact plate 25 with slots 26 are present. However, the pot wall 23 with the coil segments is offset inwardly in FIG. 2.
  • the outer support body 20 is made of steel or the like
  • the support body 20 can also consist of an electrically non-conductive material, for example of ceramic. It is also possible to coat a metallic ring on its inside with a ceramic material.
  • the outer support body 20 has to be soldered into the "recess.” In this case, solder can penetrate into the slots 24 and thus cause a short circuit or partial short circuit, which leads to a reduction of the magnetic field and thus to a deterioration of the switching properties of the contact.
  • the outer support body 20 be made so thin and inserted into the recess that a peripheral cavity 30 remains between the wall of the contact carrier 22 with the coil segments and the support body 20, which in the case of the intended use of the contact arrangement in a vacuum necktube Vacuum gap "realized.
  • the vacuum gap 30 between the outer support body 20 and the coil segment prevents solder from penetrating during the soldering process into the azimuthal slots 24 or between adjacent slots 24 and the outer support body 20. It will achieved with a mechanically strong connection between theticianstweil- body 20 and the other justifyeilen, without it can come in the coil segments or between coil segments and ostweil redesign to well-conductive short circuits or Generalkurz- conclusions.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)

Abstract

L'invention concerne un contact de commutation pour des tubes commutateurs à vide présentant un champ magnétique radial ou axial, ce contact comprenant un support de contact de commutation et une plaque de contact. Ledit support de contact de commutation contient une bobine servant à générer un champ magnétique, cette bobine étant formée par découpage de la paroi d'un support de contact en forme de coupelle. Selon l'invention, le diamètre extérieur (D<SB>S</SB>) de la paroi fendue (23) du support de contact en forme de coupelle est inférieur au diamètre (D<SB>K</SB>) de la plaque de contact (25) située au-dessus. Le contact de commutation selon l'invention comprend par ailleurs un corps de soutien (20) annulaire qui est inséré entre la plaque de contact (25) et la base (22a) du support de contact (22) et qui entoure ledit support de contact (22) au moins dans la zone fendue. Un espace à "vide" (30) est disposé entre le corps de soutien (20) extérieur et la paroi fendue (23).
EP05769820A 2004-06-30 2005-06-23 Contact de commutation pour tubes commutateurs a vide Withdrawn EP1763888A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004031887A DE102004031887B3 (de) 2004-06-30 2004-06-30 Schaltkontakt für Vakuumschaltröhren
PCT/EP2005/052949 WO2006003114A2 (fr) 2004-06-30 2005-06-23 Contact de commutation pour tubes commutateurs a vide

Publications (1)

Publication Number Publication Date
EP1763888A2 true EP1763888A2 (fr) 2007-03-21

Family

ID=35229867

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05769820A Withdrawn EP1763888A2 (fr) 2004-06-30 2005-06-23 Contact de commutation pour tubes commutateurs a vide

Country Status (7)

Country Link
US (1) US20080023445A1 (fr)
EP (1) EP1763888A2 (fr)
JP (1) JP2008504659A (fr)
CN (1) CN1969353B (fr)
DE (1) DE102004031887B3 (fr)
RU (1) RU2329579C1 (fr)
WO (1) WO2006003114A2 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101359552B (zh) * 2008-09-28 2011-01-12 北京京东方真空电器有限责任公司 真空开关管
EP2434514A1 (fr) * 2010-09-24 2012-03-28 ABB Technology AG Interrupteur sous vide pour agencement de disjoncteur
EP2434513B1 (fr) * 2010-09-24 2019-04-17 ABB Schweiz AG Interrupteur sous vide pour agencement de disjoncteur
RU2449405C1 (ru) * 2010-11-15 2012-04-27 Холдинговая компания "Новосибирский Электровакуумный Завод - Союз" в форме открытого акционерного общества Контактное устройство вакуумной дугогасительной камеры
EP2731120A1 (fr) * 2012-11-08 2014-05-14 ABB Technology AG Système d'interrupteur à vide pour disjoncteur moyenne tension avec des contacts TMF en forme de coupe
DE102014209762A1 (de) * 2014-05-22 2015-11-26 Siemens Aktiengesellschaft Elektrischer Kontaktkörper und dessen Herstellung mittels 3D-Druck
DE102015217647B4 (de) * 2015-09-15 2025-01-30 Siemens Aktiengesellschaft Schaltkontakt für eine Vakuumschaltröhre sowie Vakuumschaltröhre
DE102017222400B3 (de) 2017-12-11 2019-03-21 Siemens Aktiengesellschaft Versteifter und feldoptimierter Schaltkontakt für Vakuumschaltröhren und eine Vakuumschaltröhre mit solchen Schaltkontakten
CN111668064B (zh) * 2019-03-05 2022-08-30 平高集团有限公司 真空灭弧室触头、真空灭弧室和真空断路器
US10796867B1 (en) * 2019-08-12 2020-10-06 Eaton Intelligent Power Limited Coil-type axial magnetic field contact assembly for vacuum interrupter
CN110729151B (zh) * 2019-09-19 2021-12-17 平高集团有限公司 一种真空灭弧室触头、真空灭弧室和真空断路器
CN110828230B (zh) * 2019-11-13 2025-01-21 中国振华电子集团宇光电工有限公司（国营第七七一厂） 一种真空灭弧室纵磁触头结构
RU203212U1 (ru) * 2020-11-30 2021-03-26 Федеральное государственное бюджетное образовательное учреждение высшего образования "Сибирский государственный индустриальный университет", ФГБОУ ВО "СибГИУ" Контактное устройство вакуумной дугогасительной камеры
CN119542069B (zh) * 2024-11-22 2025-10-03 西安交通大学 一种利用多个接触片分割电弧的真空灭弧室

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4117288A (en) * 1976-06-25 1978-09-26 Westinghouse Electric Corp. Vacuum type circuit interrupter with a contact having integral axial magnetic field means
SU1174994A1 (ru) * 1982-01-29 1985-08-23 V Elektrotech I V I Lenina "bakууmhaя дугoгacиteльhaя kamepa"
DE3231593A1 (de) * 1982-08-25 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer vakuumschalter
DE3407088A1 (de) * 1984-02-27 1985-08-29 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer vakuumschalter
DE3900684A1 (de) * 1989-01-12 1990-07-26 Sachsenwerk Ag Schaltkontakt fuer vakuumschalter
DE4002933A1 (de) * 1990-02-01 1991-08-08 Sachsenwerk Ag Vakuumschaltkammer
DE9305125U1 (de) * 1993-03-30 1994-08-04 Siemens AG, 80333 München Kontaktanordnung für eine Vakuumschaltröhre
FR2841682B1 (fr) * 2002-06-27 2004-12-10 Schneider Electric Ind Sas Ampoule a vide pour un appareil de protection electrique tel un interrupteur ou un disjoncteur

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006003114A2 *

Also Published As

Publication number Publication date
WO2006003114A3 (fr) 2006-07-06
JP2008504659A (ja) 2008-02-14
CN1969353B (zh) 2010-11-03
RU2329579C1 (ru) 2008-07-20
US20080023445A1 (en) 2008-01-31
WO2006003114A2 (fr) 2006-01-12
CN1969353A (zh) 2007-05-23
DE102004031887B3 (de) 2006-04-13

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