EP0254089B1 - Vakuumschaltröhre - Google Patents

Vakuumschaltröhre Download PDF

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Publication number
EP0254089B1
EP0254089B1 EP87109468A EP87109468A EP0254089B1 EP 0254089 B1 EP0254089 B1 EP 0254089B1 EP 87109468 A EP87109468 A EP 87109468A EP 87109468 A EP87109468 A EP 87109468A EP 0254089 B1 EP0254089 B1 EP 0254089B1
Authority
EP
European Patent Office
Prior art keywords
cap
housing
ceramic
steam
ceramic part
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
EP87109468A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0254089A1 (de
Inventor
Günther Ing. Bialkowski
Burkhard Dipl.-Ing. Mick
Klaus Ing. Oberndörfer
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 EP0254089A1 publication Critical patent/EP0254089A1/de
Application granted granted Critical
Publication of EP0254089B1 publication Critical patent/EP0254089B1/de
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
    • H01H33/662—Housings or protective screens
    • H01H33/66261—Specific screen details, e.g. mounting, materials, multiple screens or specific electrical field considerations
    • H01H2033/66276—Details relating to the mounting of screens in vacuum switches
    • 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
    • H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing

Definitions

  • the invention is in the field of vacuum electronics and is concerned with the structural design of a vacuum interrupter, the housing of which is composed of at least one hollow cylindrical ceramic part and at least two metal housing parts.
  • the two contacts are arranged in the area of a metal, cap-shaped housing part that consists of two parts, namely the actual cap-shaped part and an axially adjoining annular part. Both parts have the same wall thickness, with the annular part being profiled at one end in a step-like manner and being placed on the edge of the cap-shaped part by means of the outer step.
  • a steam screen is also fixed by placing it on this step with the edge of its widened end and fastening it there.
  • the steam shield covers a small part of the hollow cylindrical ceramic part of the housing in the axial direction.
  • the attached cylindrical ring of the cap-shaped housing part is made of copper or Kovar (trademark) (EP-A-0 241 814) .
  • a vacuum interrupter is known, the housing of which is constructed from two hollow cylindrical ceramic parts, a hollow cylindrical metal part and further metal parts.
  • the ring-shaped housing parts are connected to one another on the end face using thin-walled hollow cylindrical rings.
  • a thin-walled attachment is provided, to which a vapor shield of the switching tube and an annular connecting member are soldered on the one hand (US-A3 766 345).
  • the invention is defined by the features of the claim.
  • the invention provides a vacuum interrupter, the manufacture of which is considerably simplified in that the number of individual parts used for the housing and the steam shielding of the ceramic housing part and thus the number of soldering points is reduced to a minimum.
  • the cap-shaped housing part consists of the same material as the steam screen, the temperature coefficient of this material not being adapted to the temperature coefficient of the ceramic part, that the cap-shaped housing part has a cylindrical region at its open cylindrical end, the wall thickness of which is less than the wall thickness in the rest of the region, thereby forming a step in the wall of the cap-shaped housing part that runs outward in the radial direction and serves as a contact surface for the widened end of the steam shield and that the steam screen completely covers the ceramic part in the axial direction.
  • the vacuum interrupter shown has a housing 1 and each other coaxially arranged switching contacts 2 and 3.
  • the housing 1 is composed of metal caps 4 and 5 and a ceramic ring as a ceramic part 6.
  • the metal caps 4 and 5 have thin-walled cylinder regions 7, at least one metal part 5 at the transition from the thick-walled part 11 to the thin-walled cylinder region 7 having a step 8 on its inner wall, which extends outward in the radial direction.
  • a vapor screen 9 has an edge region 10 which is widened outwards.
  • the edge region 10 lies against the thin-walled cylinder region 7 and against the step 8 of the cap 5 and is brazed there to the cap 5.
  • the thin-walled cylinder regions 7 are butt-soldered onto the ceramic ring 6 and their wall thickness is such that the bracing that occurs during soldering is absorbed by the soldering point due to different thermal expansion between the ceramic ring 6 and the thin-walled cylinder region 7 and does not lead to a leak in the tube.
  • the screen 9 covers the ceramic part 6 in the axial direction, so that a screen 9 is sufficient for steam shielding.
  • the screen 9 can be used in the manufacture and applied to the step 8 and remains there solely due to gravity when the tube is held in the position shown when soldering.
  • the other parts can also be Stack soldering on top of each other without expensive holding devices and can be soldered in one operation.
  • the one-sided arrangement of the contacts in the area of the lower metal cap 5 is advantageous, since a relatively large switching space is available here and the metal vapor that is produced can be kept away from the ceramic part 6 particularly well.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
EP87109468A 1986-07-11 1987-07-01 Vakuumschaltröhre Expired - Lifetime EP0254089B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863623457 DE3623457A1 (de) 1986-07-11 1986-07-11 Vakuumschaltroehre
DE3623457 1986-07-11

Publications (2)

Publication Number Publication Date
EP0254089A1 EP0254089A1 (de) 1988-01-27
EP0254089B1 true EP0254089B1 (de) 1992-01-08

Family

ID=6304986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87109468A Expired - Lifetime EP0254089B1 (de) 1986-07-11 1987-07-01 Vakuumschaltröhre

Country Status (5)

Country Link
US (1) US4746777A (enrdf_load_stackoverflow)
EP (1) EP0254089B1 (enrdf_load_stackoverflow)
JP (1) JPS6329423A (enrdf_load_stackoverflow)
CA (1) CA1296038C (enrdf_load_stackoverflow)
DE (3) DE8618632U1 (enrdf_load_stackoverflow)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3803778A1 (de) * 1988-02-09 1989-08-17 Licentia Gmbh Vakuumschaltkammer
US5289991A (en) * 1990-07-04 1994-03-01 Shimano Inc. Spinning reel
JPH0460064U (enrdf_load_stackoverflow) * 1990-09-25 1992-05-22
DE4129008A1 (de) * 1991-08-28 1992-01-16 Slamecka Ernst Vakuumschalter
DE9401655U1 (de) * 1993-06-18 1994-11-03 Siemens AG, 80333 München Vakuumschaltröhre mit ringförigem Isolator
DE9319945U1 (de) * 1993-12-21 1995-04-20 Siemens AG, 80333 München Lötring für vakuumelektronische Bauelemente
DE4431067A1 (de) * 1993-12-24 1995-06-29 Abb Patent Gmbh Vakuumschaltkammer
DE4401356A1 (de) * 1994-01-14 1995-07-20 Siemens Ag Vakuumschaltröhre mit speziellem Stromanschluß
DE19510850C1 (de) * 1995-03-17 1996-07-25 Siemens Ag Vakuumschaltröhre
DE19713478C1 (de) * 1997-03-18 1998-04-09 Siemens Ag Vakuumschaltröhre mit einem zwischen zwei Isolatoren angeordneten metallenen Gehäuseteil
DE19826766C1 (de) * 1998-06-12 2000-03-30 Siemens Ag Vakuumschaltröhre mit einem dem Isolator zugeordneten Dampfschirm
DE10007907C2 (de) * 1999-06-10 2002-03-14 Abb T & D Tech Ltd Vakuumschaltkammer
US10541094B1 (en) * 2018-07-27 2020-01-21 Eaton Intelligent Power Limited Vacuum interrupter with radial bellows
CN109273315B (zh) * 2018-10-23 2024-03-12 陕西宝光真空电器股份有限公司 一种屏蔽筒与瓷壳的固定方法及真空灭弧室
DE102018220928A1 (de) 2018-12-04 2020-06-04 Siemens Aktiengesellschaft Verbesserung der Oberflächeneigenschaften von Kontaktwerkstoffen
DE102019216663B4 (de) * 2019-10-29 2023-02-02 Siemens Aktiengesellschaft Vakuumschaltvorrichtung für eine Schaltung mit Haupt- und Nebenstrompfad

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0241814A2 (en) * 1986-04-05 1987-10-21 Kabushiki Kaisha Meidensha Vacuum interrupter

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1353161A (fr) * 1962-02-23 1964-02-21 Thomson Houston Comp Francaise Dispositif pour intervalle sous vide
GB1184590A (en) * 1967-11-29 1970-03-18 Ass Elect Ind Improvements in or relating to Vacuum Electric Switches.
US3590197A (en) * 1968-10-31 1971-06-29 Allis Chalmers Mfg Co Electrical contacts containing gettering material
US3612795A (en) * 1969-01-09 1971-10-12 Westinghouse Electric Corp Shielding arrangements for vacuum-type circuit interrupters of the two-contact type
GB1504666A (en) * 1975-03-22 1978-03-22 Gemvac Kk Vacuum power interrupter and method of making the same
US4216361A (en) * 1978-11-17 1980-08-05 Westinghouse Electric Corp. Low voltage vacuum switch with plural conic shields about the contacts
NL178680C (nl) * 1979-03-05 1986-05-01 Hazemeijer Bv Werkwijze voor het tot stand brengen van een stompe hardsoldeerverbinding tussen metaal en keramisch materiaal.
JPS5894233U (ja) * 1981-12-19 1983-06-25 株式会社明電舎 真空インタラプタ
JPS58165225A (ja) * 1982-03-26 1983-09-30 株式会社日立製作所 真空しや断器
DE3343918A1 (de) * 1983-12-05 1985-06-13 Siemens AG, 1000 Berlin und 8000 München Vakuumschalter fuer den niederspannungsbereich, insbesondere niederspannungsschuetz
US4661666A (en) * 1985-05-28 1987-04-28 Kabushiki Kaisha Meidensha Vacuum interrupter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0241814A2 (en) * 1986-04-05 1987-10-21 Kabushiki Kaisha Meidensha Vacuum interrupter

Also Published As

Publication number Publication date
JPH0555965B2 (enrdf_load_stackoverflow) 1993-08-18
DE3775844D1 (de) 1992-02-20
US4746777A (en) 1988-05-24
DE8618632U1 (de) 1988-12-22
EP0254089A1 (de) 1988-01-27
JPS6329423A (ja) 1988-02-08
CA1296038C (en) 1992-02-18
DE3623457A1 (de) 1988-01-14

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