EP0162801A1 - Structure de contact pour un interrupteur sous vide - Google Patents

Structure de contact pour un interrupteur sous vide Download PDF

Info

Publication number
EP0162801A1
EP0162801A1 EP85730061A EP85730061A EP0162801A1 EP 0162801 A1 EP0162801 A1 EP 0162801A1 EP 85730061 A EP85730061 A EP 85730061A EP 85730061 A EP85730061 A EP 85730061A EP 0162801 A1 EP0162801 A1 EP 0162801A1
Authority
EP
European Patent Office
Prior art keywords
contact
slot
base plate
slots
wall
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
EP85730061A
Other languages
German (de)
English (en)
Other versions
EP0162801B1 (fr
Inventor
Karl Dr. rer. nat. Zückler
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 EP0162801A1 publication Critical patent/EP0162801A1/fr
Application granted granted Critical
Publication of EP0162801B1 publication Critical patent/EP0162801B1/fr
Expired legal-status Critical Current

Links

Images

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 contact arrangement for a vacuum switch with two axially oppositely arranged and relatively movable contact pieces, each contact piece being designed as a pot contact piece, the wall of which is provided with obliquely inclined slots, and each oblique slot each having a further slot in a base plate and is each connected to an additional slot in a contact disk lying on the wall in a cover-like manner, and the oblique slot also runs in one plane together with the associated further slot in the base plate.
  • obliquely inclined slots are milled into the walls of the two contact pieces in each case, which extend into the base plate of the respective contact piece and as further slots in the base plate from the outer edge thereof to a circular area in the middle.
  • the slots subdivide the respective base plate into line segments which extend from the outer edge of the base plate largely in the radial direction to the center thereof.
  • the contact disk which rests on the wall of the respective contact piece in a lid-like manner, is also divided into line segments by essentially radially extending slots, the course of the additional slots only deviating slightly from the radial direction in the edge region of the contact disk connected to the wall of the contact piece, so that the to additional slots in the contact disc continuously merge into the assigned oblique slots in the wall.
  • the current flowing through the contact pieces therefore flows through the line segments of the base plate and the contact disk of the respective contact piece almost in a radial direction towards or from the wall of the contact piece. , this way.
  • the current is deflected due to the oblique slots in such a way that it receives a current component flowing in the circumferential direction of the contact pieces.
  • This current component generates a magnetic field which is in phase with the current and passes through both contact pieces in the axial direction.
  • the axial magnetic field causes the arc that arises between the contact pieces to be diffuse, which means that the contact disks burn up less. Since the angle of inclination of the oblique slots in the walls of the contact pieces is limited by their external dimensions, the axial magnetic field generated in the known contact arrangement is relatively weak, so that the arc can contract when large currents are switched off, which results in increased erosion of the contact disks .
  • the invention has for its object to provide a contact arrangement for a vacuum switch, the contact pieces are provided with slots that are not only very easy to manufacture, but also allow a particularly strong magnetic fields to be generated by their formation in the contact pieces.
  • each additional slot in the contact disk according to the invention runs in each case in a straight line in the plane in which the respectively assigned oblique slot in the wall and further slot in the base plate runs, each additional contact in the contact arrangement of the type specified slot in the contact disk and the associated further slot in the base plate each run on different sides of a radially oriented plane parallel to these slots.
  • the advantage of the contact arrangement according to the invention is that both the base plate and the contact disk of the respective contact piece are divided into such line elements by the further and additional slots formed in them that a current flowing through them receives a current component in the circumferential direction of the contact piece.
  • This current component causes an intensification of the magnetic field generated by the current in the wall of the contact piece, as a result of which an improved quenching of the resulting arc is achieved when the contact pieces are separated.
  • the current component flowing in the base plate and the contact disk of the respective contact piece in the circumferential direction and the magnetic field generated by it are all the greater, the greater the distance in which the further and additional slots, which are connected to each other via an oblique slot, in the base plate or the contact disk run on different sides of the radially aligned plane parallel to this.
  • Another function of the further and additional slots in the base plate and the contact disk is that they contribute to the reduction of eddy currents in the respective contact piece.
  • the respective contact disk is fastened to the wall in each contact piece in a first method step; in a second process step, the oblique slots in the wall and the further and additional slots in the base plate and the contact disk, each of which is connected to them worked into the respective contact piece.
  • the contact pieces of the contact arrangement according to the invention is particularly easy and inexpensive to produce, by the inclined slits in the wall and respectively associated with them further and additional slots in the base plate and-the contact disc gSymptomsä into the corresponding contact piece are t.
  • Another advantage of this manufacturing process is that, as a result of the manufacture of the slots after the contact disks have been attached to the walls of the contact pieces, the oblique slots in the wall of each contact piece pass into the slots of the contact disk which are connected to them without formation of shoulders; such an exact transition, on the other hand, cannot be achieved if the wall and the contact disk of the respective contact piece are cut separately.
  • one of the two contact pieces is shown in the view from below, in side view and top view.
  • the contact piece shown of the contact arrangement according to the invention is designed as a so-called pot contact piece, which has a cup-shaped contact carrier 1 with a base plate 2 and a hollow cylindrical wall 3. In order to better illustrate this, a portion of the contact piece shown in the side view has broken out in the figure.
  • a cover disk 4 attached to it, which is designed as a circular disk with a bevelled outer edge and a raised contact surface in its center.
  • the contact disk 4 preferably consists of a chrome-copper composite material.
  • non-conductive spacer made of preferably ferromagnetic material with a small remanence.
  • the contact piece is connected in the region of the center of the base plate 2 to a support element 5 in the form of a support bolt.
  • the wall 3 of the contact piece is provided in the circumferential direction at regular intervals with oblique slots 6, each inclined to the contact plate 4.
  • the base plate 2 and the contact plate 4 are each provided with an equal number of further slots 7 or additional slots 8, each of which extends from the outer edge to a circular area in the middle of the base plate 2 or the contact plate 4 in such a straight line that each oblique slot 6 in the wall 3 is each connected to one of the further and additional slots 7 and 8 in the base plate 2 and the contact plate 4 and runs with them in one plane; the additional slot 8 in the contact disk 4 and the associated further slot 7 in the base plate 2 are each formed on different sides of a radially oriented plane 9 parallel to these slots 7 and 8.
  • the oblique slots 6 in the wall 3 and the further and additional slots 7 and 8 in the base plate 2 and the contact disk 4 connected to them are each formed by saw cuts inserted laterally into the respective contact piece.
  • the arrows 10 indicate the current flow through the contact piece.
  • the current supplied to the contact piece via the support element 5 enters the base plate 2 of the contact piece and flows therein from the inside to the outside to the wall 3.
  • the current flows in the direction of the edge region of the contact disk 4, in which the current collected and fed to the raised surface in the middle of the contact plate 4, where the current exits the contact piece.
  • the slots 7, 6 and 8 in the base plate 2, the wall 3 and the contact disk 4 the current flowing through the contact piece is deflected such that it receives a current component 11 flowing in the circumferential direction to the contact piece, which generates a magnetic field 12 passing through the contact piece.
  • the contact piece shown is arranged axially opposite another contact piece, not shown, which, with the assumption that the contact piece shown is stationary, is constructed in the same way as the fixed contact piece shown, except for its mobility in the axial direction.
  • the current passing from the fixed contact piece to the opposite movable contact piece, not shown, generates a magnetic field in the latter, which is rectified to the magnetic field emanating from the fixed contact piece and which generates an axially aligned magnetic field between the two contact pieces.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
EP85730061A 1984-04-26 1985-04-17 Structure de contact pour un interrupteur sous vide Expired EP0162801B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843415744 DE3415744A1 (de) 1984-04-26 1984-04-26 Kontaktanordnung fuer einen vakuumschalter
DE3415744 1984-04-26

Publications (2)

Publication Number Publication Date
EP0162801A1 true EP0162801A1 (fr) 1985-11-27
EP0162801B1 EP0162801B1 (fr) 1987-07-01

Family

ID=6234528

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85730061A Expired EP0162801B1 (fr) 1984-04-26 1985-04-17 Structure de contact pour un interrupteur sous vide

Country Status (3)

Country Link
EP (1) EP0162801B1 (fr)
JP (1) JPS60236426A (fr)
DE (2) DE3415744A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990015424A1 (fr) * 1989-05-31 1990-12-13 Siemens Aktiengesellschaft PROCEDE DE FABRICATION DE CONTACTS AU CuCr POUR DES INTERRUPTEURS A VIDE ET CONTACT CORRESPONDANT
GB2240660A (en) * 1990-02-01 1991-08-07 Sachsenwerk Licht & Kraft Ag Vacuum switch

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19518233A1 (de) * 1995-05-12 1996-11-14 Slamecka Ernst Vakuumschalter-Kontaktanordnung
JPH10505939A (ja) * 1994-09-22 1998-06-09 シュラメッカ エルンスト 真空サーキットブレーカ・コンタクト装置
DE102007063414B3 (de) * 2007-12-18 2009-04-23 Siemens Ag Kontaktscheibe für eine Vakuumschaltröhre
KR101085286B1 (ko) † 2010-10-18 2011-11-22 엘에스산전 주식회사 진공 인터럽터의 접점

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1424276A (fr) * 1964-02-11 1966-01-07 Ass Elect Ind Perfectionnements aux montages de contact des interrupteurs sous vide
DE2638700A1 (de) * 1976-08-27 1978-03-02 Siemens Ag Elektrischer vakuumschalter
DE3227482A1 (de) * 1982-07-20 1983-02-03 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Vakuumschalter-kontaktanordnung mit vorrichtung zur erzeugung eines achsialen magnetfeldes
DE3231593A1 (de) * 1982-08-25 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer vakuumschalter
EP0133368A2 (fr) * 1983-08-09 1985-02-20 Vacuum Interrupters Limited Contact pour interrupteur haut courant

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5816731B2 (ja) * 1977-12-28 1983-04-01 株式会社明電舎 真空しや断器の電極

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1424276A (fr) * 1964-02-11 1966-01-07 Ass Elect Ind Perfectionnements aux montages de contact des interrupteurs sous vide
DE2638700A1 (de) * 1976-08-27 1978-03-02 Siemens Ag Elektrischer vakuumschalter
DE3227482A1 (de) * 1982-07-20 1983-02-03 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Vakuumschalter-kontaktanordnung mit vorrichtung zur erzeugung eines achsialen magnetfeldes
DE3231593A1 (de) * 1982-08-25 1984-03-01 Siemens AG, 1000 Berlin und 8000 München Kontaktanordnung fuer vakuumschalter
EP0133368A2 (fr) * 1983-08-09 1985-02-20 Vacuum Interrupters Limited Contact pour interrupteur haut courant

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990015424A1 (fr) * 1989-05-31 1990-12-13 Siemens Aktiengesellschaft PROCEDE DE FABRICATION DE CONTACTS AU CuCr POUR DES INTERRUPTEURS A VIDE ET CONTACT CORRESPONDANT
US5330702A (en) * 1989-05-31 1994-07-19 Siemens Aktiengesellschaft Process for producing CuCr contact pieces for vacuum switches as well as an appropriate contact piece
GB2240660A (en) * 1990-02-01 1991-08-07 Sachsenwerk Licht & Kraft Ag Vacuum switch
US5099093A (en) * 1990-02-01 1992-03-24 Sachsenwerk Aktiengesellschaft Vacuum switching chamber
GB2240660B (en) * 1990-02-01 1994-07-27 Sachsenwerk Licht & Kraft Ag Vacuum switch chamber assembly

Also Published As

Publication number Publication date
JPS60236426A (ja) 1985-11-25
DE3560296D1 (en) 1987-08-06
EP0162801B1 (fr) 1987-07-01
DE3415744A1 (de) 1985-10-31

Similar Documents

Publication Publication Date Title
EP0082801B1 (fr) Tube interrupteur à vide avec un anneau pour créer un champ magnétique axial
DE4002933C2 (fr)
EP0163593A1 (fr) Disposition de contact pour un interrupteur sous vide
EP0104384A1 (fr) Dispositif de contact d'un interrupteur à vide
DE3245609A1 (de) Vakuumschutzschalter
EP0155376A1 (fr) Disposition de contact pour interrupteur à vide
DE1911072A1 (de) Vakuum-Stromunterbrecher
EP0381843A2 (fr) Contact interrupteur
EP0782760B1 (fr) Systeme de contact pour interrupteur sous vide
EP0199044B1 (fr) Interrupteur à coupure en charge logé dans une enceinte
EP0162801B1 (fr) Structure de contact pour un interrupteur sous vide
DE2638700C3 (de) Elektrischer Vakuumschalter
EP0073925A1 (fr) Disposition de contacts pour interrupteur à vide
EP1198812A1 (fr) Systeme de contact d'un interrupteur a vide
DE4214550A1 (de) Vakuumschaltroehre
EP0532513B1 (fr) Contact pour un tube commutateur a vide
EP0203367B1 (fr) Dispositif de contact pour interrupteur sous vide
EP0238967A1 (fr) Disposition de contacts pour interrupteur sous vide à champ magnétique axial et méthode de fabrication des contacts assortis
DE102007063414B3 (de) Kontaktscheibe für eine Vakuumschaltröhre
CH634441A5 (de) Kontaktstueckanordnung in vakuumschalter.
EP0088040A1 (fr) Interrupteur à vide avec un anneau agissant comme enroulement à champ magnétique
DE2536501B2 (de) Verrastbare schaltvorrichtung, insbesondere fuer digitaluhren
DE3107155C2 (de) Vakuumschalter
DE2902489A1 (de) Kontaktanordnung fuer vakuumschalter
DE19957228B4 (de) Kontaktanordnung für eine Vakuumschaltkammer

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB LI

17P Request for examination filed

Effective date: 19860109

17Q First examination report despatched

Effective date: 19861016

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB LI

REF Corresponds to:

Ref document number: 3560296

Country of ref document: DE

Date of ref document: 19870806

EN Fr: translation not filed
EN Fr: translation not filed

Free format text: DELETE IN JOURNAL 87/36 PAGE 107

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19890417

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19890430

Ref country code: CH

Effective date: 19890430

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19891228

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19900103

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST