EP2597665A1 - Commutateur pour courant continu doté d'au moins une chambre de commutation - Google Patents

Commutateur pour courant continu doté d'au moins une chambre de commutation Download PDF

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Publication number
EP2597665A1
EP2597665A1 EP11190517.0A EP11190517A EP2597665A1 EP 2597665 A1 EP2597665 A1 EP 2597665A1 EP 11190517 A EP11190517 A EP 11190517A EP 2597665 A1 EP2597665 A1 EP 2597665A1
Authority
EP
European Patent Office
Prior art keywords
switching
contact
switch according
switch
bridge
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Withdrawn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
EP11190517.0A
Other languages
German (de)
English (en)
Inventor
Karsten Gerving
Volker Lang
Johannes Meissner
Ralf Thar
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 EP11190517.0A priority Critical patent/EP2597665A1/fr
Priority to EP12790577.6A priority patent/EP2783378B1/fr
Priority to PCT/EP2012/073646 priority patent/WO2013076310A1/fr
Priority to US14/359,915 priority patent/US20140284310A1/en
Publication of EP2597665A1 publication Critical patent/EP2597665A1/fr
Withdrawn legal-status Critical Current

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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
    • H01H9/44—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
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
    • H01H71/0271—Mounting several complete assembled circuit breakers together
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H01H71/1027—Interconnected mechanisms comprising a bidirectional connecting member actuated by the opening movement of one pole to trip a neighbour pole

Definitions

  • the invention relates to a switch, which is provided in particular for a DC operation, comprising at least one switching chamber, each switching chamber two switching pieces, each with a first contact region, a movable with a switching bridge and electrically conductive bridge switching piece with two second contact areas for producing an electrically conductive connection between the first and second contact areas and for separating at least one of the second contact areas of the respective first contact area, and at least two magnets for generating a magnetic field.
  • Electrical switches are components in a circuit that establish or disconnect an electrically conductive connection by means of internal, electrically conductive contacts. With a live connection to be cut, current flows through the contacts until they are separated. When an inductive circuit is disconnected by a switch, the current flow does not reduce immediately to zero, so that an arc can form between the contacts.
  • the arc is a gas discharge by a per se non-conductive medium, such as air.
  • AC alternating current
  • arcs usually erase at the zero crossing of the alternating current. Since such a zero crossing of the current in switches with DC operation (DC) is missing, stable arcing can occur when disconnecting the contacts.
  • the extinguishing chambers which serve to extinguish the arc, are intended to keep the period during which the arc burns as short as possible, since the arc releases a large amount of heat, which is used to burn off the contacts and / or the thermal load Switching chamber leads in the switch and thus reduces the life of the switch.
  • the space requirement for switches with corresponding extinguishing chambers, especially for non-polarity switch is significant. In two- or multi-pole switches correspondingly higher amounts of heat are released by arcs than in single-pole switches, which in turn requires larger switch housing with higher space requirements.
  • An object of the invention is to provide a switch with a fast and reliable erase behavior of resulting Ausschaltlichtbögen available, the space requirement of the amount of heat released is adjusted, without thereby increasing the variety of parts of the switch housing is increased.
  • each switching chamber has two contact pieces, each with a first contact region, and an electrically conductive bridge contact piece which can be moved with a switching bridge.
  • the bridge switching piece is an electrically conductive connection between the first and second contact areas to produce, with a simple-break switch only one of the contact pairs of the first and second contact area is separable, while the other contact pair remains permanently connected, for example via a strand.
  • the two second contact areas are separated from the respective first contact area.
  • each chamber has at least two magnets, in particular permanent magnets.
  • a modular construction of the switch wherein the switch is provided with only one switching chamber for a single-pole operation and can be extended by adding at least one second switching chamber for a multi-pole operation.
  • the space requirement of the switch of the amount of heat produced can be adjusted by Ausschaltlichtbögen.
  • the modular construction advantageously allows uniform switching chamber components to be used to produce single or multi-pole switches.
  • a preferred embodiment relates to a two-pole operation of the switch, wherein two switching chambers are connected to each other such that their respective opening sides face each other. Also preferably, the switching chambers for a two-pole operation by a plate against each other are electrically isolated, the plate is used in a single-pole operation as a cover of the individual switching chamber housing.
  • the two switching chambers preferably have a common switching bridge for moving the bridge switching pieces.
  • an additional magnet for influencing the magnetic field is arranged on the movable switching bridge for each switching chamber.
  • An advantage of this additional magnet is that the magnetic field in the region of the first and second contact regions is particularly well influenced, since the additional magnet passes through the movement of the switching bridge in the immediate vicinity of the first and second contact areas.
  • the field strength of the magnetic field is significantly increased in this area by the additional magnet, which allows an advantageously accelerated erasing of arcs.
  • the additional magnet is preferably in a recess in the movable switching bridge arranged at the level of the contact areas.
  • the magnetic field is used to exert a magnetic force on the arc or arcs, so that at least one of the arcs, preferably independently of the current direction in the arc, is driven in the direction of one of the extinguishing devices, wherein the contact pieces of the switching chambers are arranged so that the second contact areas are located in a line substantially perpendicular to the direction of movement of the arcs.
  • the additional magnet is movable to amplify the magnetic field strength with the switching bridge in a region of the separable first and second contact areas.
  • the auxiliary magnet is movable in close proximity to the region of the first and second contact regions, not between the first and second contact regions.
  • the at least two magnets are, for example, at least twice as far away from the first and second contact regions as the additional magnet.
  • the at least two magnets can in particular be arranged outside the switching chamber or in the region of the switching chamber wall, also on the inside of the switching chamber wall, preferably in an insulating pocket.
  • the magnets are preferably designed as at least two plate-shaped magnets whose surfaces are arranged parallel to each other.
  • At least two extinguishing devices are provided per switching chamber or contact pair for extinguishing arcing, which can occur during separation of the first and second contact regions.
  • Particularly preferably four erasing devices are provided for polarity-independent erasing of the arcs.
  • first arc conductors extend from the first contact regions and second arc conductors extend from the second contact regions toward the extinguishing devices, wherein a distance of the first arc conductors from the second arc conductors in the direction of the extinguishing devices is particularly preferred increased.
  • each bridge switching piece extends in a direction transversely, in particular approximately at right angles, to an extension direction of the switching pieces. Transverse to a direction is to be understood in the sense not parallel to the direction.
  • the switching pieces are designed for multi-pole operation such that the terminals of the switch with respect to their position and / or installation position correspond to a multi-pole AC switch.
  • a faulty wiring due to an unfamiliar position of the terminals in DC switches over the AC switches used much more often over a long time is thereby advantageously avoided.
  • FIG. 1 shows a switch according to the invention, in particular a multi-pole, independent of the current direction compact switch according to the invention in an operation to show an efficient quenching behavior by the shortest possible arc time.
  • the connections of the main current paths or switching pieces 10a, 20a are like in a standard AC contactor each opposite at the same level, based on the installation depth of the switch arranged.
  • the opposing contact pieces 10b, 20b are in the FIG. 1 arranged behind the switch and therefore only in the rest Figures 2 and 3a or 3b recognizable.
  • the switch is designed in the form of two overlapping switch chambers 41a, 41b of preferably identical construction, which makes it possible in particular to realize a single-pole switch with only one switching chamber 41b or expand this modular, by adding a further switching chamber 41a, to a two-pole switch.
  • the switching arrangements for each pole are accommodated in two separate, identical switching chambers 41a, 41b, which are arranged one above the other.
  • the switching chambers 41a, 41b are mounted with their opening sides facing each other.
  • the two switching chambers 41a, 41b are sealed off from each other by a partition 43 made of insulating material. In this way, a cost-effective solution is realized with compact installation conditions.
  • the partition wall 43 is designed as a cover, the switch according to the invention can also be of modular construction, optionally with only one switching chamber 41b or two-pole with both switching chambers 41a, 41b.
  • the first pole or the first switching chamber 41a has two contact pieces 10a, 10b, each having a first contact region 11 and a bridge bridge 30 movable and electrically conductive Brückenschalt Georgia 30 with two second contact areas 31 for producing an electrically conductive connection between the first and second contact areas 11, 31 and for separating the second contact areas 31 from the respective first contact area 11.
  • the second switching chamber 41b has two switching pieces 20a, 20b each having a first contact region 21.
  • the bridge switching piece 30 with second Contact areas 31 is identical to the first switching chamber 41a and therefore also designated.
  • the movable bridge switching pieces 30 of both poles are in this case arranged one above the other at the common switching bridge 35, whereby a synchronized switching process is realized for both poles.
  • the first and second contact areas 11, 31 and 21, 31 are also referred to below as fixed contact areas 11, 21 and movable contact areas 31, which form contact pairs.
  • the pairs of contacts each have two opposite, preferably identical extinguishing devices 61, 62.
  • the extinguishing devices are preferably designed as so-called Deion chambers, which consist of a stack arrangement of mutually electrically insulated sheets 66 each having an air gap between two adjacent sheets.
  • the extinguishing devices 61, 62 are each extended to runner-shaped angled second arc conductors or arc runners 32, wherein the outgoing ends of the bridge in the off case, point approximately in the direction of the outer edges 65 of the extinguishing devices.
  • the movable contact areas 31 are located in each case at the intersection between the bridge switching piece 30, which are rotated by approximately 90 degrees against the connecting axis of two opposing extinguishing devices 61, 62, and from there perpendicularly outgoing arc running plates 32nd
  • FIGS. 3a and 3b are two perspective views of the switch according to FIG. 1 , but without chamber walls of the switching chambers 41a, 41b, shown.
  • the Perspective in FIG. 3a corresponds to the FIG. 1 while the FIG. 3b a 90 degree rotated perspective shows.
  • the switching pieces 10a, 10b, 20a, 20b are designed differently with the fixed contact areas 11, 21 for the two poles of the switch, which are additionally described below with reference to FIGS FIGS. 3a and 3b to be discribed.
  • the two contact piece carriers 10 a, 10 b respectively parallel to the longer chamber wall at the lower end of the switching chamber 41 a in this, wherein the one contact piece 10 a immediately behind the inner chamber wall by 90 degrees in a direction parallel to the short side of the switching chamber 41a is angled to be bent again just before reaching the lateral chamber wall by 90 degrees in a direction parallel to a chamber bottom or the partition wall 43.
  • a parallel offset of the two contact pieces 10a, 10b is achieved, in such a way that both are aligned in parallel to each other current paths in the direction of the longer chamber side.
  • the switching pieces 20a, 20b are designed in a similar manner, but with the difference that both switching pieces 20a, 20b immediately after entry into the switching chamber 41b initially at right angles in a direction parallel to the short side of the switching chamber 41st b are angled so that they run towards the bottom of the chamber.
  • the one switching piece 20a is then angled again by 90 degrees in the direction parallel to the short chamber wall to again in front of the chamber wall at right angles in Direction parallel to the chamber bottom to be angled. In this way, the switching piece 20a is guided parallel to the longitudinal-side chamber wall analogously to the switching chamber 41a of the first pole along the chamber bottom.
  • the second switching piece 20b is again bent at right angles in the region of the chamber bottom in such a way that it is parallel to the first contact piece along the chamber bottom.
  • the two switching pieces 20a, 20b extend from the switching chamber wall initially below the extinguishing devices 61, 62. Outside the same, they are angled obliquely upward again, so that the two fixed contact areas 21 at the level of the center of the extinguishing devices 61st , 62 are arranged.
  • a switch is realized with an optimized arc running behavior, in such a way that the resulting switching arcs are directed under the action of magnetic Blasfelder within very short times targeted in the direction of one of the extinguishing device 61, 62. Due to the special design of the contact pieces 10a, 10b, 20a, 20b is further achieved that the connections of the main current paths are arranged with respect to position and depth as in a multi-pole AC switch.
  • an arrangement of in each case at least two permanent magnets 51a, 51b and an additional magnet 51c is arranged in each of the two switching chambers 41a, 41b in the illustrated embodiment.
  • the two magnets 51a, 51b can be arranged, for example, outside the switching chambers 41a, 41b, while the additional magnet 51c for influencing the magnetic field is arranged on the movable switching bridge 35, preferably in each case at the level of the movable contact regions 31.
  • the bridge switching pieces 30 angled on both sides trapezoidal.
  • the permanent magnet arrangement Due to the effective Lorentz force, the permanent magnet arrangement always causes the partial arcs that arise when opening the contacts to be in the direction of two of the four extinguishing devices, regardless of the direction of the current 61, 62 are moved and extinguished there.
  • the arrangement of the additional magnet 51 c directly in the region of the switching contacts allows the generation of a homogeneous magnetic field of high magnetic field strength, which allows due to its blowing rapid propagation of the arc in the direction of the respective extinguishing device 61, 62 and thus a comparatively short residence time of the arc between the Contact areas 11, 31 and 21, 31 result, which advantageously reduces the erosion of the contacts and the life of the switch is increased.
  • the permanent magnets 51a, 51b and 51c are preferably made of ferritic material and / or of rare earth materials such as Nd-Fe-B or Sa-Co and / or of materials which allow the formation of plastic-bonded moldings.
  • the switching chamber housing are preferably made of ceramic or thermosetting plastic and divided into four bays separated by bulkheads, each carrying on one outer exhaust openings.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
EP11190517.0A 2011-11-24 2011-11-24 Commutateur pour courant continu doté d'au moins une chambre de commutation Withdrawn EP2597665A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP11190517.0A EP2597665A1 (fr) 2011-11-24 2011-11-24 Commutateur pour courant continu doté d'au moins une chambre de commutation
EP12790577.6A EP2783378B1 (fr) 2011-11-24 2012-11-26 Ensemble COMMUTATEUR POUR COURANT CONTINU DOTÉ D'AU MOINS UNE CHAMBRE DE COMMUTATION
PCT/EP2012/073646 WO2013076310A1 (fr) 2011-11-24 2012-11-26 Commutateur pour fonctionnement en courant continu comportant au moins une chambre de commutation
US14/359,915 US20140284310A1 (en) 2011-11-24 2012-11-26 Switch for direct current operation having at least one circuit breaker chamber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11190517.0A EP2597665A1 (fr) 2011-11-24 2011-11-24 Commutateur pour courant continu doté d'au moins une chambre de commutation

Publications (1)

Publication Number Publication Date
EP2597665A1 true EP2597665A1 (fr) 2013-05-29

Family

ID=47221438

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11190517.0A Withdrawn EP2597665A1 (fr) 2011-11-24 2011-11-24 Commutateur pour courant continu doté d'au moins une chambre de commutation
EP12790577.6A Active EP2783378B1 (fr) 2011-11-24 2012-11-26 Ensemble COMMUTATEUR POUR COURANT CONTINU DOTÉ D'AU MOINS UNE CHAMBRE DE COMMUTATION

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12790577.6A Active EP2783378B1 (fr) 2011-11-24 2012-11-26 Ensemble COMMUTATEUR POUR COURANT CONTINU DOTÉ D'AU MOINS UNE CHAMBRE DE COMMUTATION

Country Status (3)

Country Link
US (1) US20140284310A1 (fr)
EP (2) EP2597665A1 (fr)
WO (1) WO2013076310A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9129761B2 (en) 2012-12-20 2015-09-08 Eaton Electrical Ip Gmbh & Co. Kg Switching device suitable for direct current operation
FR3014595B1 (fr) * 2013-12-09 2016-02-05 Schneider Electric Ind Sas Dispositif de commutation electrique
DE102014107950B4 (de) * 2014-06-05 2022-02-03 Wago Verwaltungsgesellschaft Mbh Steckverbinderanordnung und Löseelement hierzu
US9530593B1 (en) * 2015-08-19 2016-12-27 Carling Technologies, Inc. Electromagnetically assisted arc quench with pivoting permanent magnet
ES2708858T3 (es) * 2016-06-10 2019-04-11 Gorlan Team Slu Procedimiento y dispositivo de corte de una corriente eléctrica con soplado magnético dinámico
FR3089702B1 (fr) * 2018-12-11 2020-12-25 Schneider Electric Ind Sas Support préfabriqué pour un dispositif électrique montable sur baie et dispositif électrique comportant un tel support

Citations (5)

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Publication number Priority date Publication date Assignee Title
DE1236628B (de) * 1961-05-17 1967-03-16 Bbc Brown Boveri & Cie Elektrischer Schalter, insbesondere Schuetz
DE1640804A1 (de) * 1966-04-09 1970-12-17 Licentia Gmbh Elektrisches Schaltgeraet
US20020060619A1 (en) * 2000-11-20 2002-05-23 Natarajan Mani Electronic actuation for mechanically held contactors
EP2061053A2 (fr) 2007-11-17 2009-05-20 Moeller GmbH Commutateur destiné à des applications à courant continu
US20100128417A1 (en) * 2008-11-27 2010-05-27 Tokyo Electron Limited Plug-in unit

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US3806849A (en) * 1973-06-18 1974-04-23 Gen Electric Small definite purpose contactor
US4282414A (en) * 1979-08-30 1981-08-04 Westinghouse Electric Corp. Convertible switch operator
JPS5713628A (en) * 1980-06-27 1982-01-23 Mitsubishi Electric Corp Direct current electromagnetic contactor
DE3146780C2 (de) * 1981-11-25 1985-10-24 Siemens AG, 1000 Berlin und 8000 München Mehrfachkontaktanordnung
DK0616347T3 (da) * 1993-03-17 1998-10-07 Ellenberger & Poensgen Flerpolet sikkerhedsafbryder
JP2965025B1 (ja) * 1998-04-07 1999-10-18 富士電機株式会社 回路遮断器
JP4009892B2 (ja) * 2000-02-07 2007-11-21 富士電機機器制御株式会社 回路遮断器の接触子装置
US6880226B2 (en) * 2001-06-29 2005-04-19 General Electric Company Method for limiting movement in electrical contactors
US7551050B2 (en) * 2006-09-22 2009-06-23 Rockwell Automation Technologies, Inc. Contactor assembly with arc steering system
EP2463877A1 (fr) * 2010-12-07 2012-06-13 Eaton Industries GmbH Commutateur doté d'une chambre d'extinction
EP2463879A1 (fr) * 2010-12-07 2012-06-13 Eaton Industries GmbH Commutateur doté d'une chambre d'extinction

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1236628B (de) * 1961-05-17 1967-03-16 Bbc Brown Boveri & Cie Elektrischer Schalter, insbesondere Schuetz
DE1640804A1 (de) * 1966-04-09 1970-12-17 Licentia Gmbh Elektrisches Schaltgeraet
US20020060619A1 (en) * 2000-11-20 2002-05-23 Natarajan Mani Electronic actuation for mechanically held contactors
EP2061053A2 (fr) 2007-11-17 2009-05-20 Moeller GmbH Commutateur destiné à des applications à courant continu
US20100128417A1 (en) * 2008-11-27 2010-05-27 Tokyo Electron Limited Plug-in unit

Also Published As

Publication number Publication date
EP2783378A1 (fr) 2014-10-01
EP2783378B1 (fr) 2017-05-31
US20140284310A1 (en) 2014-09-25
WO2013076310A1 (fr) 2013-05-30

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