EP2458613A1 - Appareil de contact d'un commutateur électrique - Google Patents

Appareil de contact d'un commutateur électrique Download PDF

Info

Publication number
EP2458613A1
EP2458613A1 EP10193007A EP10193007A EP2458613A1 EP 2458613 A1 EP2458613 A1 EP 2458613A1 EP 10193007 A EP10193007 A EP 10193007A EP 10193007 A EP10193007 A EP 10193007A EP 2458613 A1 EP2458613 A1 EP 2458613A1
Authority
EP
European Patent Office
Prior art keywords
contact
conductor
arm
conductor section
rotary
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Withdrawn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
EP10193007A
Other languages
German (de)
English (en)
Inventor
Volker Heins
Kurt Haendler
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 Industries GmbH
Original Assignee
Eaton Industries 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 GmbH filed Critical Eaton Industries GmbH
Priority to EP10193007A priority Critical patent/EP2458613A1/fr
Priority to US13/989,830 priority patent/US9269505B2/en
Priority to EP11791514.0A priority patent/EP2649632B1/fr
Priority to CA2819044A priority patent/CA2819044A1/fr
Priority to CN201180057458.5A priority patent/CN103229268B/zh
Priority to PCT/EP2011/071215 priority patent/WO2012072599A1/fr
Publication of EP2458613A1 publication Critical patent/EP2458613A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
    • H01H77/101—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening with increasing of contact pressure by electrodynamic forces before opening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
    • H01H77/107—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening characterised by the blow-off force generating means, e.g. current loops

Definitions

  • the invention relates to a contact apparatus of an electrical switching device, in particular as a low-voltage switching device in which the electrodynamic effect parallel flowing streams is used in particular for electrodynamic contact separation.
  • the shows EP 0 560 696 A1 a switch in which the fixed contact is connected to a loop-shaped conductor section.
  • the loop-shaped conductor section is bent in such a way that when the current flows through the conductor section, an electrodynamic magnetic force acts on the contact arm, which leads to an opening movement of the contact arm and thus also of the movable contact piece from a specifiable current intensity (short-circuit current).
  • the loop-shaped conductor section is composed of at least two tightly connected turns whose axes form a common coil axis.
  • a displacement of the contact pieces during contact contact is additionally carried out ( DE 102008 049789 A1 ).
  • a parallel current loop is either flowed through to the electrodynamically amplified opening or not at all.
  • the core of the invention is a contact apparatus of an electrical switching device having at least one fixed contact and a rotary contact body with at least one contact arm, at the end a BewegtWallet scholar is arranged and with feeding and discharging conductors in several conductor sections, the current path in the contactor from the conductor sections a helical Winding with at least 360 ° rotation forms with an axis perpendicular to the plane in which the rotary contact body is movable.
  • the arrangement according to the invention provides a closed current path in the contact apparatus in which the current directions in the first conductor section, in the fifth conductor section and in the third conductor section are parallel, with the contact apparatus closed, but the current directions in the first conductor section and in the fifth conductor section are in the same direction and the current direction in the third conductor section are opposite to the aforementioned current directions.
  • An extended preferred embodiment of a contact apparatus is that on a rotary contact body opposite contact arms and the contact arm each a contact piece is designed as a moving contact piece, which cooperates with a fixed contact piece.
  • the rotary contact body of the further embodiment preferably has a rotationally symmetrical about its axis of rotation training.
  • the rotary contact body - as known from the prior art for such contactors - be rotatably mounted in a rotor housing against a spring force.
  • the first conductor section and the fifth conductor section are each a straight formed current conductor, which runs starting at a terminal for at least one fixed contact.
  • the mitbewegbar trained current conductor of the fourth conductor section should be able to follow the movements of the rotary contact body.
  • the fourth conductor section which connects the third conductor section to the fifth conductor section, may be formed as a copper strand. However, it can also be formed mitbewegbar trained conductor of the fourth conductor portion of rigid (for example, three) individual pieces. The individual pieces are articulated with each other and at connecting points with the third and the fifth conductor section. In the articulated connection points so-called current joints are present, which are designed to conduct electricity.
  • the current joints have spring-loaded axle connections in which they can perform rotations.
  • the first conductor section and the last conductor section extend parallel to each other at least in the length of the at least one contact arm of the rotary contact body and as closely as possible adjacent.
  • the first conductor portion and the last conductor portion are formed insulated from each other, preferably such that they are mounted with an insulating intermediate layer on top of each other. Furthermore, it should be provided that other closely spaced conductor sections are formed isolated from each other. Thus, the fourth conductor section is guided past the first conductor section, so that insulation should also be provided here, for example by using an insulated copper strand as the fourth conductor section and / or by insulating the first conductor section.
  • the geometric configuration of the crossing area should be designed so that contact of the conductor sections in this area is avoided or a possible contact proceeds with as little friction as possible. Therefore, the first conductor section may be narrower in the crossing region than over its other length. Alternatively, the first conductor section may also be formed with a perturbation or hole in the crossing area through which the stranded wire is passed.
  • the pivot point, or the position of the axis of the rotary contact body should be located in a place in which the least force is exerted by the co-moving conductor (strand) on the rotary contact body. Such a location could be, for example, on half the length of the co-moving conductor.
  • the Fig. 1 shows a one-arm contact apparatus with feeding and discharging conductors, which are fed at the end via terminal pieces 12, 14 (or terminals).
  • the individual conductor sections of the current-carrying arrangement form a helical winding with more than 360 ° circulation.
  • the first conductor portion A1 is a fixed conductor 20 leading to the fixed contact 22 '.
  • the second conductor portion A2 extends through the contact pieces 22', 24 '(the contact) of the contact apparatus.
  • the third conductor section A3 extends over the rotary contact body (with contact arm 24).
  • the rotary contact body has a pivot point (axis) 32.
  • the fourth conductor section A4 is a mitbewegbarer conductor 26 and may preferably be formed as a flexible conductor (preferably a copper strand).
  • the current path through the four mentioned conductor sections forms a helical winding with 360 ° circulation.
  • the last (and fifth) conductor portion A5 is an incoming or outgoing conductor 28.
  • the last conductor portion A5 (28) is closely adjacent to the first conductor portion A1 (20).
  • the helical winding has an axis perpendicular to the plane in which the rotary contact body (contact arm 24) is movable.
  • the individual conductor sections with the exception of the flexible conductor 26 as each relatively rigid and straight-running conductor 20, 24, 28 shown from good electrical conductivity material.
  • the stranded wire 26 is respectively welded to the rigid conductors 24 and 28, or to one of the rotary contact arms (24A, 24B in FIG 3B and 3C ).
  • the contact apparatus has a closed current path in which the current directions - viewed in closed contact apparatus - are parallel in the first A1, in the fifth A5 and in the third conductor section A3, but the current directions in the first A1 and in the fifth conductor section A5 in the same direction and the current direction in the third Conductor section A3 (here at least one contact arm 24) opposite to the aforementioned flow directions A1, A5.
  • the first conductor section 20, A1 and the last conductor section 28, A5 extend at least in the length L of the (at least one) contact arm 24 (24A, 24B) closely adjacent and parallel next to one another.
  • the first conductor section A1 and the last conductor section A5 may be formed lying on one another, wherein an insulating layer 18 may be present between them.
  • the insulating interlayer may be paper, cardboard, mica or similar insulating material.
  • An alternative embodiment may consist in that the busbars 20, 28 are inserted in plastic and / or encapsulated.
  • the fulcrum 32 of the rotary contact body 24 (23 ') is located approximately at half the length of the strand 26 (according to FIG Fig. 1 ).
  • the position of the fulcrum is chosen so that the strand is as little as possible during the movement of the rotary contact body 24, 23 'compressed or stretched.
  • the stranded wire 26 is guided past the first conductor section 20, A1.
  • a second figure is reproduced.
  • the conductor portion 20, A1 in the region 15 of the strand 26 is narrow. It may also be provided in the first conductor portion 20, an opening (15) through which the strand is threaded, however, such a construction is relatively complex and recommended only for a special design.
  • FIGS. 3A, 3B, 3C show schematic embodiments of the contact apparatus.
  • Fig. 3A corresponds schematically to the FIG. 1
  • At the contact arm ends is ever a contact piece as a moving contact piece (24 'in Fig. 1 ), which in each case with a fixed contact piece (22 'in Fig. 1 ) cooperates.
  • the fifth conductor section A5 (A5 ') in one half of the contact apparatus is substantially parallel to the one half contact arm in its closed position and closely adjacent to the first Head section A1 (A1 ') the said half arranged.
  • the conductor sections A1 '... A5' also form a winding with more than 360 ° circulation.
  • FIG. 12 illustrates a contact apparatus in which the helical turn of the current path can be viewed via the first contact arm 24A in juxtaposition with the helical turn of the current path via the second contact arm 24B.
  • the movable current conductors 26 are welded to one of the rotary contact arms (24A, 24B) on the one hand and, on the other hand, to the current conductor of the respective conductor section A5, A5'
  • the third conductor section A3 'of the current path via the first contact arm 24A and the third conductor section A3 of the current path extend over the second contact arm 24B - in full length - over the entire two-arm rotary contact body 23'.
  • the contact apparatus of this embodiment does not require a fourth conductor portion A4, which is described in the other two embodiments and is adapted to follow the movements of the rotary contact body 23, 23 'can.
  • the current path in the contact device after Fig. 3C can be considered a loop in the shape of a recumbent 8.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Manipulator (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Breakers (AREA)
EP10193007A 2010-11-29 2010-11-29 Appareil de contact d'un commutateur électrique Withdrawn EP2458613A1 (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP10193007A EP2458613A1 (fr) 2010-11-29 2010-11-29 Appareil de contact d'un commutateur électrique
US13/989,830 US9269505B2 (en) 2010-11-29 2011-11-28 Contact mechanism of an electric switching device
EP11791514.0A EP2649632B1 (fr) 2010-11-29 2011-11-28 Appareil de contact d'un dispositif de commutation électrique
CA2819044A CA2819044A1 (fr) 2010-11-29 2011-11-28 Appareil de contact d'un dispositif de commutation electrique
CN201180057458.5A CN103229268B (zh) 2010-11-29 2011-11-28 电开关装置的接触机构
PCT/EP2011/071215 WO2012072599A1 (fr) 2010-11-29 2011-11-28 Appareil de contact d'un dispositif de commutation électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10193007A EP2458613A1 (fr) 2010-11-29 2010-11-29 Appareil de contact d'un commutateur électrique

Publications (1)

Publication Number Publication Date
EP2458613A1 true EP2458613A1 (fr) 2012-05-30

Family

ID=43896818

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10193007A Withdrawn EP2458613A1 (fr) 2010-11-29 2010-11-29 Appareil de contact d'un commutateur électrique
EP11791514.0A Not-in-force EP2649632B1 (fr) 2010-11-29 2011-11-28 Appareil de contact d'un dispositif de commutation électrique

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP11791514.0A Not-in-force EP2649632B1 (fr) 2010-11-29 2011-11-28 Appareil de contact d'un dispositif de commutation électrique

Country Status (5)

Country Link
US (1) US9269505B2 (fr)
EP (2) EP2458613A1 (fr)
CN (1) CN103229268B (fr)
CA (1) CA2819044A1 (fr)
WO (1) WO2012072599A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107329495B (zh) * 2017-08-03 2020-04-17 中国石油集团长城钻探工程有限公司 一种基于非平衡式双触点开关的信号检测方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3092699A (en) * 1958-12-23 1963-06-04 Merlin Gerin Electrodynamic force-compensation pressure contacts for circuit breakers
US4511774A (en) * 1983-12-08 1985-04-16 Eaton Corporation Current limiting contact arrangement
EP0560696A1 (fr) 1992-03-13 1993-09-15 Schneider Electric Sa Contact d'un disjoncteur à boîtier moulé
US5596184A (en) * 1992-07-02 1997-01-21 Mitsubishi Denki Kabushiki Kaisha Switch including a moving element, a repelling element and a conductor
DE19700758C1 (de) 1997-01-11 1998-04-02 Kloeckner Moeller Gmbh Schalter mit mindestens einem feststehenden Schaltstück
DE102008049789A1 (de) 2007-10-12 2009-04-23 Siemens Aktiengesellschaft Kontaktvorrichtung mit unterschiedlichen Kontaktkräften in unterschiedlichen Betriebszuständen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1028264C (zh) * 1992-07-02 1995-04-19 三菱电机株式会社 开关
US6727788B1 (en) * 2002-06-20 2004-04-27 Siemens Energy & Automation, Inc. Latch mechanism for a circuit breaker
DE10260371B4 (de) * 2002-12-13 2004-12-02 Siemens Ag Niederspannungs-Leistungsschalter

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3092699A (en) * 1958-12-23 1963-06-04 Merlin Gerin Electrodynamic force-compensation pressure contacts for circuit breakers
US4511774A (en) * 1983-12-08 1985-04-16 Eaton Corporation Current limiting contact arrangement
EP0560696A1 (fr) 1992-03-13 1993-09-15 Schneider Electric Sa Contact d'un disjoncteur à boîtier moulé
US5596184A (en) * 1992-07-02 1997-01-21 Mitsubishi Denki Kabushiki Kaisha Switch including a moving element, a repelling element and a conductor
DE19700758C1 (de) 1997-01-11 1998-04-02 Kloeckner Moeller Gmbh Schalter mit mindestens einem feststehenden Schaltstück
DE102008049789A1 (de) 2007-10-12 2009-04-23 Siemens Aktiengesellschaft Kontaktvorrichtung mit unterschiedlichen Kontaktkräften in unterschiedlichen Betriebszuständen

Also Published As

Publication number Publication date
EP2649632B1 (fr) 2015-03-18
CA2819044A1 (fr) 2012-06-07
WO2012072599A1 (fr) 2012-06-07
CN103229268B (zh) 2015-11-25
US9269505B2 (en) 2016-02-23
US20130240337A1 (en) 2013-09-19
CN103229268A (zh) 2013-07-31
EP2649632A1 (fr) 2013-10-16

Similar Documents

Publication Publication Date Title
DE102013107807B3 (de) Elektrische Steckverbindung
DE602005000144T2 (de) Schwenkbarer Erdungsschalter mit direkter Einführung und einfacher Bewegung
DE1440010B2 (de) Verbinder zum herstellen einer elektrischen verbindung mit ausgewaehlten draehten eines flachen kabels
WO2015091239A1 (fr) Transformateur de mesure isolé au gaz avec dispositif de sectionnement
DE3835990A1 (de) Stromschienenverbinder
EP1728311A1 (fr) Dispositif permettant de relier la gaine d'un bobinage electrique a un cable de terre et train a sustentation magnetique equipe dudit dispositif
DE3536112A1 (de) Kontaktanordnung fuer niederspannungs-leistungsschalter mit einem biegsamen stromband
EP2649632B1 (fr) Appareil de contact d'un dispositif de commutation électrique
DE2756741A1 (de) Elektrisches schaltgeraet mit magnetischem kontaktdruckverstaerker
DE2721258A1 (de) Elektrisches schaltfeld
DE4306011A1 (fr)
EP4197017A1 (fr) Module de commutation et changeur de prises en charge comprenant un module de commutation
EP3469613B1 (fr) Moyen formant frotteur destiné à un disjoncteur haute tension et utilisation
EP0920703B1 (fr) Systeme de contact mobile pour disjoncteur basse tension avec un palier pivotant
EP3469611B1 (fr) Système de contact pour appareil de commutation haute tension, son utilisation et sa fabrication
EP2410553A1 (fr) Commutateur à haute tension isolé du gaz
EP0633587B1 (fr) Cellule de commutation blindée à isolation gazeuse pour moyenne tension
DE102007051613A1 (de) Schalt- und Schutzeinrichtung, Schmelzsicherung, Schaltanlage/Verteilersystem, Stromschienenverteiler und Anschlusseinrichtung
DE102020203190B3 (de) Trennvorrichtung und schutzgasisolierte Mittelspannungs-Leistungsschaltanlage
DE2938885C2 (de) Last- oder Leistungsschalter
DE3111286C2 (fr)
EP1168553B1 (fr) Dispositif de prévention d'arc pour installation de commutation à isolation gaseuse
DE69726848T2 (de) Leistungsschaltern des ausfahrbaren Typs
EP1064663A1 (fr) Bobine de soufflage pour sectionneurs sous charge isoles des gaz
DE20306768U1 (de) Elektrisches Gerät mit mehreren Schneid-/Klemmanschlußvorrichtungen

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

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

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

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20121201