EP0104134A2 - Interrupteur à vide avec partie annulaire et traverse diamétrale des pièces de contact - Google Patents

Interrupteur à vide avec partie annulaire et traverse diamétrale des pièces de contact Download PDF

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Publication number
EP0104134A2
EP0104134A2 EP83730080A EP83730080A EP0104134A2 EP 0104134 A2 EP0104134 A2 EP 0104134A2 EP 83730080 A EP83730080 A EP 83730080A EP 83730080 A EP83730080 A EP 83730080A EP 0104134 A2 EP0104134 A2 EP 0104134A2
Authority
EP
European Patent Office
Prior art keywords
ring part
contact plate
contact
contact pieces
vacuum interrupter
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Withdrawn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
EP83730080A
Other languages
German (de)
English (en)
Other versions
EP0104134A3 (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
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 EP0104134A2 publication Critical patent/EP0104134A2/fr
Publication of EP0104134A3 publication Critical patent/EP0104134A3/fr
Withdrawn legal-status Critical Current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
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H33/6644—Contacts; Arc-extinguishing means, e.g. arcing rings having coil-like electrical connections between contact rod and the proper contact

Definitions

  • the invention relates to a vacuum interrupter with two switching pieces that can be moved relative to one another, each having an annular part and a diametrical web connecting this with a power supply bolt, and a cylindrical disk-shaped contact plate which is mechanically and electrically conductively connected to the annular part by protrusions extending therefrom.
  • a vacuum interrupter with these features has become known, for example, from DE-A-29 46 800.
  • the mode of operation of this arrangement is based on the generation of a magnetic field which is axially directed with respect to the axis of the contact piece arrangement and which counteracts a contraction of the switching arcs at high currents. As a result, the arcs remain diffuse and cannot cause severe local erosion on the contact plates. Due to their multi-part construction, however, contact pieces of this type prove to be relatively difficult to manufacture.
  • the invention has for its object to improve the manufacturability and at the same time the effectiveness of the contact pieces.
  • this object is achieved in that the contact plate is unslotted on each of the switching pieces and has a smaller diameter than the ring part and in that the projections are designed as arms leading to the edge of the contact plate.
  • the outer diameter of the contact plate corresponds approximately to the inner diameter of the ring part.
  • the axial magnetic field is already present in full at the edge of the contact plate.
  • the ring part and the contact plate as a single body, for. Example as casting, manufactured 'are up. It is already known per se to provide, in the case of vacuum interrupters with an annular part of each contact piece and a diametrical web, arms which extend at right angles to these and extend close to the diametrical web and to which the contact plate is attached (IEEE Trans.
  • two switching pieces designed according to the invention can be arranged opposite one another and guided in such a way that the diametrical webs of the ring parts cross at right angles. It is achieved in this way that the contact pieces generated magnetic fields have the same direction everywhere and consequently attractive forces occur. This avoids undesirable lifting of the contact pieces under the influence of surge currents.
  • Fig. 1 shows a vacuum interrupter in a simplified representation in section.
  • FIG. 2 shows a perspective illustration of a quarter of one of the switching elements shown in FIG. 1.
  • FIG 3 shows an exploded view of a top view of the ring part of a switching element and the associated contact plate and the directions of the magnetic field that occur.
  • the vacuum interrupter 1 has a central metal cylinder 2 and insulating bodies 3 adjoining it on both sides. With a lower end plate 4, a power supply bolt 5 is connected, the outer end of which is to be connected to a connecting device for the circuit to be switched. At the inner end of the power supply pin 5 there is a fixed contact piece 6 with a ring part 13 and a diametrical web 14.
  • the upper insulating body 3 is provided with a further end plate 7, in which a further power supply pin 10 is slidably guided in the axial direction.
  • a bellows 11, one end of which is connected to the end plate 7 and the other end of which is connected to the power supply pin 10, is used to seal the vacuum interrupter 1 from the surroundings.
  • the electrical connection to the end plate 7 or to the outer end of the power supply bolt 10 done.
  • a movable contact piece 12 At the inner end of this power supply bolt there is a movable contact piece 12, which also has an annular part 18 and a diametrical web 19.
  • the diametrical webs 14 and 19 are referred to below as cross webs.
  • FIG. 2 shows a quarter of the switching element 6 shown in FIG. 1 in perspective.
  • the switching piece 6 has a ring part 13 which is connected to the power supply pin 5 via a crosspiece 14.
  • the crosspiece 14 is lower than the ring part 13 and has approximately half its height.
  • the crosspiece 14 is bevelled to the power supply bolt 5 in order to achieve good strength properties of the arrangement.
  • an angled arm 15 extends from the upper edge of the ring part 13 and forms the connection to a contact plate 16. It should be noted that a further arm 17 is present, which is not recognizable in FIG. 2 because of the perspective quarter representation, but the arrangement of which can be seen from FIG. 3.
  • the contact plate 16 is dimensioned so that its outer diameter corresponds to the inner diameter of the ring member 13.
  • the contact plate 16 is provided with a pad 20 which is particularly suitable for switching in a vacuum and which can preferably consist of a chromium-copper composite material.
  • the offset of the interacting switching elements by 90 ° has the further advantageous consequence that currents flowing in the same direction are present in the respectively opposite quadrants of the ring parts of the switching elements.
  • the contact pieces attract each other, avoiding contact lifting under the influence of surge currents.
  • the desired axial magnetic field prevails in the entire contact gap. This is already fully effective on the outer edge of the contact plates 16 because the diameter of the contact plates corresponds approximately to the inner diameter of the ring parts.
  • the relatively simple shape of the new switching elements enables economical production according to different the known methods.
  • the contact pieces z. B. be produced as a one-piece cast body on which only the contact pads are to be applied.
  • a two-part production is possible, in which, for. B. the ring part with the crossbar and the arms is produced as a cast body to which the contact plate is then attached.

Landscapes

  • High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
EP83730080A 1982-09-21 1983-08-19 Interrupteur à vide avec partie annulaire et traverse diamétrale des pièces de contact Withdrawn EP0104134A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3235298 1982-09-21
DE19823235298 DE3235298A1 (de) 1982-09-21 1982-09-21 Vakuumschaltroehre mit ringteil und diametralem steg der schaltstuecke

Publications (2)

Publication Number Publication Date
EP0104134A2 true EP0104134A2 (fr) 1984-03-28
EP0104134A3 EP0104134A3 (fr) 1986-10-22

Family

ID=6173992

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83730080A Withdrawn EP0104134A3 (fr) 1982-09-21 1983-08-19 Interrupteur à vide avec partie annulaire et traverse diamétrale des pièces de contact

Country Status (4)

Country Link
US (1) US4508945A (fr)
EP (1) EP0104134A3 (fr)
JP (1) JPS5978419A (fr)
DE (1) DE3235298A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3416368A1 (de) * 1984-04-30 1984-12-13 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Vakuumschalter-kontaktanordnung
WO1987003136A1 (fr) * 1985-11-12 1987-05-21 Mitsubishi Denki Kabushiki Kaisha Interrupteur sous vide

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4698467A (en) * 1985-10-24 1987-10-06 Kabushiki Kaisha Toshiba Electrodes of vacuum switch
DE102021210859A1 (de) * 2021-09-28 2023-03-30 Siemens Aktiengesellschaft Gehäuse für eine Vakuumschaltröhre

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2429484A1 (de) * 1974-06-20 1976-01-08 Siemens Ag Kontaktanordnung fuer vakuumschalter
JPS5826132B2 (ja) * 1978-11-22 1983-06-01 株式会社日立製作所 真空しや断器
US4260864A (en) * 1978-11-30 1981-04-07 Westinghouse Electric Corp. Vacuum-type circuit interrupter with an improved contact with axial magnetic field coil
JPS573327A (en) * 1980-06-05 1982-01-08 Mitsubishi Electric Corp Vacuum breaker
JPS5784530A (en) * 1980-11-17 1982-05-26 Hitachi Ltd Vacuum breaker
DE3151907A1 (de) * 1981-12-23 1983-06-30 Siemens AG, 1000 Berlin und 8000 München Vakuumschaltroehre mit einem ring zur erzeugung eines axialen magnetfeldes
DE3206823A1 (de) * 1982-02-23 1983-09-01 Siemens AG, 1000 Berlin und 8000 München Vakuumschaltroehre mit einem als feldwicklung dienenden ring

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3416368A1 (de) * 1984-04-30 1984-12-13 Ernst Prof. Dr.techn.habil. 1000 Berlin Slamecka Vakuumschalter-kontaktanordnung
WO1987003136A1 (fr) * 1985-11-12 1987-05-21 Mitsubishi Denki Kabushiki Kaisha Interrupteur sous vide
US4855547A (en) * 1985-11-12 1989-08-08 Mitsubishi Denki Kabushiki Kaisha Vacuum interrupter

Also Published As

Publication number Publication date
DE3235298A1 (de) 1984-03-22
US4508945A (en) 1985-04-02
JPS5978419A (ja) 1984-05-07
EP0104134A3 (fr) 1986-10-22

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Effective date: 19841217

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Effective date: 19870731

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Inventor name: ZUECKLER, KARL, DR. RER. NAT.