EP2915175A1 - Dispositif de commutation à courant continu - Google Patents

Dispositif de commutation à courant continu

Info

Publication number
EP2915175A1
EP2915175A1 EP13805278.2A EP13805278A EP2915175A1 EP 2915175 A1 EP2915175 A1 EP 2915175A1 EP 13805278 A EP13805278 A EP 13805278A EP 2915175 A1 EP2915175 A1 EP 2915175A1
Authority
EP
European Patent Office
Prior art keywords
switching
switching device
arc
quenching chamber
magnet
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
EP13805278.2A
Other languages
German (de)
English (en)
Other versions
EP2915175B1 (fr
Inventor
Johann Koppensteiner
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=49765451&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2915175(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Eaton Industries Austria GmbH filed Critical Eaton Industries Austria GmbH
Publication of EP2915175A1 publication Critical patent/EP2915175A1/fr
Application granted granted Critical
Publication of EP2915175B1 publication Critical patent/EP2915175B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/346—Details concerning the arc formation chamber
    • 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
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H01H1/2066—Fork-shaped bridge; Two transversally connected contact arms bridging two fixed 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
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets

Definitions

  • the invention relates to a DC switching device according to the preamble of
  • the object of the invention is therefore to provide a DC switching device of the type mentioned, with which the mentioned disadvantages can be avoided, and with which DC currents high power can be switched safely.
  • Such a DC switching device has a high level of security, in particular against thermal destruction.
  • Fig. 1 shows a particularly preferred embodiment of a subject
  • FIG. 2 shows the arc extinguishing arrangement of the DC switching device according to FIG. 1 in axonometric representation
  • FIG. 3 the arc extinguishing arrangement of FIG. 2 in a sectional view in elevation.
  • Figs. 1 to 3 show a particularly preferred embodiment of a
  • DC switching device 1 wherein the DC switching device 1 has at least one electrical input 2 and at least one electrical output 3, and with at least a first switching contact 4, a second switching contact 5 and a movable
  • the DC switching device 1 further comprises an arc extinguishing arrangement 6, wherein the arc extinguishing arrangement 6 a first arc quenching chamber 7 and a second arc quenching chamber 8, each comprising a plurality of quenching plates 9, and wherein the DC switching device 1 has a magnet assembly 10 which is formed such that on - by a
  • Such a DC switching device 1 has a high level of security, in particular against thermal destruction.
  • the subject invention relates to switching devices, which are provided for the switching of direct currents and specially designed.
  • the invention relates to DC switching devices 1, which are intended and designed for the intended switching high voltages in the range of several hundred volts, about 600V operating voltage, as well as currents in the two-digit ampere range.
  • DC switching device 1 described in more detail with a single switching path. However, it is also possible to provide designs with several parallel switching paths.
  • An objective DC switching device 1 has an electrical input 2 and an electrical output 3, which are preferably designed as screw terminals, as shown in Fig. 1. Furthermore, the DC switching device 1 has a
  • Insulating housing on.
  • the DC switching device 1 has a single switching path, but with a double interruption of this single switching path is provided. It is preferably provided that the first and the second switching contact 4, 5 are fixed to the housing, and can be electrically connected by a movable switching bridge 20, whereby an electrically conductive current path from the input 2 to the output 3 is formed. It is provided that the position of the switching bridge 20 is manually controlled by the shift lever 19. It is preferably provided that the shift lever 19 acts on the switching bridge 20 via a snap-action switching mechanism in order to achieve a sudden opening and closing of the switching path. It may also be provided to carry out the subject DC switching device 1 as so-called. Self-switch, which one or more triggers, such as a
  • the DC switching device 1 has a switching mechanism, in particular when the same is carried out as a self-switch.
  • the switching bridge 20 has two, designed as electrical contacts areas to the first switching contact 4 and the second
  • contact switching contact 5 this is in the diction of the subject application only referred to as a switching bridge 20. It can also be provided that also the first switching contact 4 and the second switching contact 5 are designed as movable electrical contacts.
  • the DC switching device 1 further comprises an arc extinguishing arrangement 6 in order to extinguish arcs 11, which arise in the course of a switching operation, to extinguish. This is to prevent that due to so-called "stationary" arcs 11 continues to flow through the DC switching device 1 and also due to the thermal effect of the arcs 11 damage to the DC switching device 1 takes place.
  • Such arcs 11 occur in particular during a switch-off.
  • Switching off refers to the separation of the switching bridge 20 of the first and second electrical switching contact 4, 5 to prevent current flow through the DC switching device 1.
  • Fig. 2 shows a preferred embodiment of the arc extinguishing arrangement 6.
  • the arc extinguishing arrangement 6 has a first arc quenching chamber 7 and a second arc quenching chamber 8. It is preferably provided that the first
  • Arc quenching chamber 7 is assigned to the first switching contact 4, and that the second arc quenching chamber 8 is associated with the second switching contact 5.
  • the term "assigned" refers in this context to an arrangement of the relevant arc quenching chamber 7, 8 with respect to the specified switching contact 4, 5 in such a way that an emerging at the switching contact 4, 5 arc 11 its way into or to the relevant arc quenching chamber 7, 8 shows the two switching contacts 4, 5 in the region of the respective arc quenching chamber 7, 8.
  • DC switching device 1 are arranged parallel to each other, as shown in FIGS. 2 and 3. It is preferably provided that in each case one arc guide rail 18 is connected in each case to the first switching contact 4 and to the second switching contact 5, which are arranged opposite the quenching plates 9 in the arc extinguishing arrangement 6, therefore in the respective arc quenching chamber 7, 8. In FIGS. 1 to 3, only the arc running rail 18 connected to the first switching contact 4 is shown.
  • first arc quenching chamber 7 and the second arc quenching chamber 8 a plurality of quenching plates 9 are arranged in each case.
  • the quenching plates 9 are preferably arranged substantially normal to the arc guide rail 18.
  • at least one quenching plate 9 of the first arc quenching chamber 7 is in this case with a
  • the DC switching device 1 has a magnet assembly 10 which is designed such that on the - caused by a switching operation - arcs 11, in the first arc quenching chamber 7 and in the second
  • each a Lorentz force 12 in the direction of the quenching plates 9 acts. Therefore, that acts on the respective occurring arcs 11 a Lorentz force 12 which accelerates the arc 11 in the first arc quenching chamber 7 and the arc 11 in the second arc quenching chamber 8 toward the quenching plates 9 and the arcs 11 formally to the quenching plates 9 and in the spaces between the quenching plates 9 presses. Since an electric arc 11 involves moving electric charges, corresponding forces also act on them in a magnetic field. In other words, it is provided that the magnet arrangement 10 generates a B-field which is normal to the longitudinal extension of the arcs 11 in the region of the arcs 11. This is shown approximately in FIG.
  • the two arcs 11 are shown as vectors, which are arranged projecting on the cutting plane, as well as the respectively acting Lorentz forces 12 and F.
  • the areas in which arcing 11 occur and their direction, are by the construction of the DC switching device 1 or can be influenced by the construction of the DC switching device 1.
  • any type of arrangement of magnets in the magnet assembly 10 suitable for achieving the stated function may be provided. It is preferably provided that the magnet arrangement 10 has at least one first magnet 13 and one second magnet 14, in particular that the magnet arrangement 10 has exactly one first and one second magnet 13, 14. This is in the arrangement with two separate
  • Arc quenching chambers 7, 8 a very good effect achievable with little design effort.
  • first magnet 13 and the second magnet 14 are arranged with mutually facing poles of the same polarity in the DC switching device 1.
  • the first magnet 13 and the second magnet 14 are respectively arranged such that their north poles face each other, therefore, the two magnets 13, 14 repel each other.
  • the first magnet 13 and the second magnet 14 in each case as flat or sheet-like magnets, with a very small thickness, whose poles are respectively formed on the cover surfaces. Therefore, one of the two surfaces is a south pole and the other surface is a north pole.
  • the magnets used are each permanent magnets.
  • the arrangement of the first magnet 13 has laterally on the first arc quenching chamber 7 and the second magnet 14 laterally to the second arc quenching chamber 8 proved, creating a very uniform B field distribution in the two arc extinguishing chambers 7, 8 can be achieved.
  • first magnet 13 and the second magnet 14 are arranged between the first arc quenching chamber 7 and the second arc quenching chamber 8.
  • the two magnets 13, 14 are arranged in a web 15 between the two arc extinguishing chambers 7, 8, as shown in Fig. 3.
  • the web 15 thus formed is clearly visible.
  • this web 15 also results in a distance between the two
  • Arc extinguishing arrangement 6 increases.
  • a uniform magnetic field B in the two arc extinguishing chambers 7, 8 is provided according to a preferred embodiment that outside the first arc quenching chamber 7 and the second arc quenching chamber 8 each partially a U-shaped yoke 16, 17 is arranged. It is provided in particular, and as shown in Fig. 3, that mutually facing legs of the two yokes 16, 17 are arranged adjacent to each other in the region of the web 15, and in each case directly adjacent to these legs of the first and the second magnet are arranged.
  • the two yokes 16, 17 are formed of ferromagnetic material.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

L'invention concerne un dispositif de commutation (1) comportant au moins une entrée électrique (2) et au moins une sortie électrique (3) ainsi qu'au moins un premier contact de commutation (4), un deuxième contact de commutation (5) et un pont de commutation (20) mobile. Lorsque le premier contact de commutation (4) et le deuxième contact de commutation (5) sont reliés de manière conductrice au moyen du pont de commutation (20), un trajet du courant est électriquement conducteur de l'entrée (2) à la sortie (3). Ledit dispositif de commutation (1) présente en outre un ensemble d'extinction d'arc (6), ledit ensemble d'extinction d'arc (6) comportant une première boîte de soufflage (7) et une deuxième boîte de soufflage (8), qui présentent chacune une pluralité de tôles d'extinction (9). Le dispositif de commutation (1) présente un agencement magnétique (10) conçu de manière qu'une force de Lorentz (12) s'exerce sur des arcs électriques (11) provoqués une opération de commutation, dans la première boîte de soufflage (7) et dans la deuxième boîte de soufflage (8), toujours en direction des tôles d'extinction (9).
EP13805278.2A 2012-10-31 2013-10-31 Dispositif de commutation à courant continu Active EP2915175B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102012110410.7A DE102012110410A1 (de) 2012-10-31 2012-10-31 Gleichstromschaltgerät
PCT/EP2013/072804 WO2014068053A1 (fr) 2012-10-31 2013-10-31 Dispositif de commutation à courant continu

Publications (2)

Publication Number Publication Date
EP2915175A1 true EP2915175A1 (fr) 2015-09-09
EP2915175B1 EP2915175B1 (fr) 2019-01-02

Family

ID=49765451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13805278.2A Active EP2915175B1 (fr) 2012-10-31 2013-10-31 Dispositif de commutation à courant continu

Country Status (6)

Country Link
EP (1) EP2915175B1 (fr)
CN (1) CN104813429B (fr)
BR (1) BR112015009673A2 (fr)
DE (1) DE102012110410A1 (fr)
RU (1) RU2656231C2 (fr)
WO (1) WO2014068053A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019107029A1 (de) * 2019-03-19 2020-09-24 Panasonic Industrial Devices Europe Gmbh Sicherungsvorrichtung
CN112908798A (zh) * 2021-01-29 2021-06-04 北京双杰电气股份有限公司 一种环状磁屏蔽罩及使用其的低压直流断路器

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5004874A (en) * 1989-11-13 1991-04-02 Eaton Corporation Direct current switching apparatus
DE102006035844B4 (de) * 2006-08-01 2008-06-19 Schaltbau Gmbh Schütz für Gleichstrom- und Wechselstrombetrieb
FR2916571B1 (fr) * 2007-05-22 2009-09-11 Schneider Electric Ind Sas Chambre de coupure et disjoncteur equipe d'une telle chambre de coupure
DE102007054958A1 (de) * 2007-11-17 2009-06-04 Moeller Gmbh Schaltgerät für Gleichstrom-Anwendungen
FR2938969A1 (fr) * 2008-11-21 2010-05-28 Schneider Electric Ind Sas Dispositif de coupure pour couper un courant continu bidirectionnel et installation a cellules photovoltaiques equipee d'un tel dispositif
CN201387860Y (zh) * 2009-04-14 2010-01-20 上海良信电器股份有限公司 以磁铁促使熄弧的直流断路器
EP2463877A1 (fr) * 2010-12-07 2012-06-13 Eaton Industries GmbH Commutateur doté d'une chambre d'extinction
US8222983B2 (en) * 2010-12-08 2012-07-17 Eaton Corporation Single direct current arc chamber, and bi-directional direct current electrical switching apparatus employing the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2014068053A1 *

Also Published As

Publication number Publication date
BR112015009673A2 (pt) 2017-07-04
WO2014068053A1 (fr) 2014-05-08
DE102012110410A1 (de) 2014-04-30
CN104813429A (zh) 2015-07-29
RU2015120617A (ru) 2016-12-20
EP2915175B1 (fr) 2019-01-02
CN104813429B (zh) 2018-07-31
RU2656231C2 (ru) 2018-06-04

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