EP3084789A1 - Dispositif de commutation - Google Patents

Dispositif de commutation

Info

Publication number
EP3084789A1
EP3084789A1 EP14816232.4A EP14816232A EP3084789A1 EP 3084789 A1 EP3084789 A1 EP 3084789A1 EP 14816232 A EP14816232 A EP 14816232A EP 3084789 A1 EP3084789 A1 EP 3084789A1
Authority
EP
European Patent Office
Prior art keywords
switching device
contact
fixed contact
arc
region
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Withdrawn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
EP14816232.4A
Other languages
German (de)
English (en)
Inventor
Wolfgang Hauer
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.)
Eaton Intelligent Power Ltd
Original Assignee
Eaton Industries Austria GmbH
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 Eaton Industries Austria GmbH filed Critical Eaton Industries Austria GmbH
Publication of EP3084789A1 publication Critical patent/EP3084789A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/32—Insulating body insertable between contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/38—Plug-and-socket contacts
    • H01H1/385—Contact arrangements for high voltage gas blast circuit breakers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/36—Metal parts
    • H01H9/362—Mounting of plates in arc chamber

Definitions

  • the invention relates to a switching device according to the preamble of claim 1.
  • the object of the invention is therefore to provide a switching device of the type mentioned, with which the mentioned disadvantages can be avoided, with which high
  • an emerging arc can be deleted quickly.
  • the voltage to be bridged by the arc can be increased very quickly considerably compared to a clean air gap.
  • the resulting arc during the shutdown therefore breaks down quickly.
  • a renewed ignition of the arc can be reliably prevented, since there is between the two contacts of insulating material.
  • a high Stromabschaltrich can be achieved with a compact size of the switching device, which is a high safety in terms of extinguishing an arc, and in terms of avoiding a re-ignition of the arc.
  • Fig. 1 is a schematic representation of an objective switching device
  • FIG. 2 shows an arrangement of fixed contact carrier, contact arm and arc quenching plates in the closed state and a view of a plan view of a
  • Fig. 3 shows the arrangement of FIG. 2 in the open state.
  • the switching device 1 shows a switching device 1, in particular a DC switching device, wherein the switching device 1 has a fixed contact carrier 4 with a fixed contact 2 and a movable contact arm 3 with a contact region 5, wherein the contact region 5 is provided for contact with the fixed contact 2.
  • 2 and 3 show a contact arm 3 with an insulating region 6, wherein the fixed contact carrier 4 has a through hole 7, wherein the fixed contact 2, the passage opening 7 bounded, and wherein in the through hole 7, a part of the insulating region 6 is arranged.
  • an emerging arc can be deleted quickly.
  • the voltage to be bridged by the arc can be increased very rapidly considerably compared to a clean air gap.
  • the resulting arc during the shutdown therefore breaks down quickly.
  • a renewed ignition of the arc can be reliably prevented, since the insulating region 6 is located between the two contacts.
  • a high Stromabschaltrich can be achieved at the same compact dimensions of the switching device 1, with a high level of safety in terms of extinguishing an arc, as well as in terms of avoiding a re-ignition of the arc.
  • Arc effect generates a gas flow.
  • the resulting gas becomes 17 pressed between the arc extinguishing plates 8, and drives the arc or between the arc quenching plates 8, whereby the arc is extinguished even faster, and a re-ignition can be practically eliminated.
  • the subject switching device 1 is preferably a so-called.
  • a trigger 12 which is designed as a short-circuit release and / or overcurrent release, on.
  • the trigger 12 acts mechanically on a switching mechanism 13, which causes the separation of the contact region 5 from the fixed contact 2 of the switching device 1 in the case of an operation or
  • the switching device 1 further comprises a manual actuating element 14, which is a manual opening and / or closing of the switching contacts, therefore of the
  • the switching device 1 has at least one switching path, wherein also embodiments with a plurality of parallel switching paths can be provided.
  • a switching path a current path is designated by the switching device 1, in which the switching contacts of the
  • Switching device 1 are arranged, and which can be closed or opened.
  • the relevant current path leads from a first terminal 10 of the switching device 1 to a second terminal 11 of the switching device 1.
  • the switching contacts of the switching device 1 have a fixed contact 2, which is arranged on a fixed contact carrier 4.
  • the term fixed contact 2 refers to the fact that the relevant fixed contact 2 is fixed in position in a, not shown, housing of the switching device 1 is arranged, and is not moved relative to the housing during the switching operation.
  • the switching contacts of the switching device furthermore have a movable contact arm 3, on which a contact region 5 is arranged.
  • the contact area 5 is the part of
  • open state of the switching device 1 refers to a state of the switching device 1 with open switching contacts, therefore the fixed contact 2 and the movable contact region 5 are not connected in a conductive or spaced manner "a state of Switching device 1 with closed switching contacts, therefore, the fixed contact 2 and the movable contact region 5 are conductively connected and thus form a continuous current path through the switching device.
  • the contact arm 3 further has an insulating region 6.
  • the insulating region 6 is understood to mean a region which has at least one surface which is formed by an electrical insulating material, in particular a so-called plastic.
  • the insulating region 6 is formed as a plastic rod.
  • the insulating region 6 is intended to be or are arranged in regions or temporarily between the fixed contact 2 and the contact region 5 during a switching process.
  • the contact arm 5 is preferably designed rod-shaped, wherein it is provided in particular that the contact arm 5 is moved to transition from the closed state to the open state or vice versa along the longitudinal extent of the rod-shaped contact arm.
  • the corresponding direction of movement is designated by 16 in FIG. It can also be provided that the contact arm 3 is formed rocker-shaped, and the corresponding opening direction follows a conic section line.
  • the contact portion 5 is truncated cone-shaped.
  • the contact region 5 forms a circumferentially substantially closed region.
  • the insulating region 6 is then arranged on the contact region 5 on the contact arm 3.
  • the fixed contact carrier 4 is preferably formed as a metal block and has a
  • the fixed contact 2 is arranged on one side of the fixed contact carrier 4 at the passage opening 7, and bounds this circumferentially, in particular full-scale.
  • This annular fixed contact 2 is provided for contact with the frusto-conical contact region 5.
  • the insulating region 6 of the contact arm 3 is arranged in the passage opening 7 of the fixed contact carrier 4. It is provided in particular that the insulating region 6 both in a closed state of the
  • Embodiment always a part or a portion of the insulating region 6 in the Through opening 7 is arranged.
  • the passage opening 7 consequently has a cross-section which allows movement of the insulating area 6 within the passage opening 7.
  • the insulating region 6 is arranged, which now enters the area between the fixed contact 2 and 5 contact area.
  • the otherwise filled by the arc area is filled by a Isolierstoff emotions.
  • a tearing of the arc can be achieved.
  • Partial arcs split The result is a high arc voltage counteracts the source voltage and thus drives the current to zero. The arc goes out. In addition, the partial arcs are cooled between the arc quenching plates 8, whereby the partial arcs energy is withdrawn. As a result, the tension increases along the
  • the arc quenching plates 8 are annular. Together with the quenching plate passage opening 9, the individual arc quenching plates 8 are reminiscent of washers, as can be seen in FIG. As a result, both a uniform effect and a rational production can be supported.
  • Insulating area 6 in a part, in particular a majority, the

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

L'invention concerne un dispositif de commutation (1), notamment un dispositif de commutation à courant continu, le dispositif de commutation (1) comportant un support de contact fixe (4) pourvu d'un contact fixe (2) et un bras de contact mobile (3) pourvu d'une zone de contact (5), la zone de contact (5) étant destinée à venir en contact avec le contact fixe (2), le bras de contact (3) comportant une zone isolante (6). Selon l'invention, le support de contact fixe (4) possède un orifice de passage (7), le contact fixe (2) délimite l'orifice de passage (7) et une partie de la zone isolante (6) est disposée dans l'orifice de passage (7).
EP14816232.4A 2013-12-18 2014-12-18 Dispositif de commutation Withdrawn EP3084789A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013114397.0A DE102013114397A1 (de) 2013-12-18 2013-12-18 Schaltgerät
PCT/EP2014/078523 WO2015091838A1 (fr) 2013-12-18 2014-12-18 Dispositif de commutation

Publications (1)

Publication Number Publication Date
EP3084789A1 true EP3084789A1 (fr) 2016-10-26

Family

ID=52144691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14816232.4A Withdrawn EP3084789A1 (fr) 2013-12-18 2014-12-18 Dispositif de commutation

Country Status (3)

Country Link
EP (1) EP3084789A1 (fr)
DE (1) DE102013114397A1 (fr)
WO (1) WO2015091838A1 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2331778A (en) * 1940-01-02 1943-10-12 Hill George Leslie Circuit breaker and switch
US3140374A (en) * 1962-09-20 1964-07-07 Fred H Cole Circuit breaker interrupter
DE2812987A1 (de) * 1978-03-23 1979-10-04 Tokyo Shibaura Electric Co Vakuumunterbrecher
US4373772A (en) * 1981-03-27 1983-02-15 Rte Corporation Bayonet-type circuit breaker having a multiple finger integrated contact band
US5744764A (en) * 1996-09-26 1998-04-28 General Signal Corporation Modular de-energized switch for transformer tap changing
DE202005014042U1 (de) * 2004-09-09 2005-12-08 Schlötzer, Eugen, Dipl.-Ing. (FH) Lastabschalter
DE102011000763A1 (de) * 2011-02-16 2012-08-16 Phoenix Contact Gmbh & Co. Kg Trennvorrichtung

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015091838A1 *

Also Published As

Publication number Publication date
DE102013114397A1 (de) 2015-06-18
WO2015091838A1 (fr) 2015-06-25

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