EP2774158A1 - Commutateur pour fonctionnement en courant continu multipolaire - Google Patents

Commutateur pour fonctionnement en courant continu multipolaire

Info

Publication number
EP2774158A1
EP2774158A1 EP12780747.7A EP12780747A EP2774158A1 EP 2774158 A1 EP2774158 A1 EP 2774158A1 EP 12780747 A EP12780747 A EP 12780747A EP 2774158 A1 EP2774158 A1 EP 2774158A1
Authority
EP
European Patent Office
Prior art keywords
switching
bridge
switch according
chambers
contact
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
EP12780747.7A
Other languages
German (de)
English (en)
Other versions
EP2774158B1 (fr
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 Electrical IP GmbH and Co KG
Original Assignee
Eaton Electrical IP GmbH and Co KG
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 Electrical IP GmbH and Co KG filed Critical Eaton Electrical IP GmbH and Co KG
Priority to EP12780747.7A priority Critical patent/EP2774158B1/fr
Priority to PL12780747T priority patent/PL2774158T3/pl
Publication of EP2774158A1 publication Critical patent/EP2774158A1/fr
Application granted granted Critical
Publication of EP2774158B1 publication Critical patent/EP2774158B1/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
    • H01H9/36—Metal parts
    • 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
    • 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

Definitions

  • the invention relates to a multi-pole switch which is suitable in particular for a multirole switch
  • 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.
  • Switching chamber leads in the switch and thus reduces the life of the switch.
  • two-pole or multi-pole switches with two or more switching chambers correspondingly higher amounts of heat are released by arcing than in single-pole switches. Therefore, there is a particular need to quickly extinguish the arcs.
  • multi-pole switch If a multi-pole switch is to be equipped accordingly, especially in a non-polarity extinguishing behavior, additional switching chambers for each pole are necessary. As a result, multipole switches can reach a size for which insufficient space, in particular not sufficient depth, is available in common control cabinets, for example.
  • An object of the invention is to provide a multi-pole switch available whose space requirements, at least in depth, based on the installation situation in a cabinet, compared to single-ended switches is not or not much higher.
  • the switch according to the invention is for a multi-pole operation, in particular
  • each pole is a partial switching chamber is provided.
  • the switching chamber has a movable switching bridge extending through both partial switch chambers, wherein in each case one bridge switch piece is provided for each partial switch chamber and the bridge switch pieces are arranged along one
  • Main extension direction of the switching bridge are spaced from each other.
  • the main extension direction of the switching bridge is aligned according to the invention substantially perpendicular to a movement axis of the switching bridge.
  • the bridge switching pieces are advantageously arranged substantially in a plane next to each other.
  • the main extension direction of the switching bridge is that direction in which the switching bridge has its greatest extent, namely in the plane of the bridge contact pieces.
  • Each of the sub-switching chambers accordingly has two fixed contact pieces, which in a plane parallel to the plane of
  • Bridge switching pieces are arranged and which by the perpendicular to the Main extension direction of the bridge bridge movable bridge switching pieces synchronized electrically connected and disconnected.
  • the sub-switching chambers are arranged and formed mirror-symmetrical in particular in one plane. Against the action of arcs of the pole of the other part switching chamber, the sub-switching chambers are preferably electrically sealed off.
  • each partial switching chamber has two switching pieces with a first contact region per switching piece, wherein the switch bridge movable and electrically conductive bridge switching pieces each have two second contact areas for producing an electrically conductive connection between the first and second contact areas and for separating the have first and second contact areas.
  • the switch bridge movable and electrically conductive bridge switching pieces each have two second contact areas for producing an electrically conductive connection between the first and second contact areas and for separating the have first and second contact areas.
  • Bridge switching pieces extend substantially perpendicular to the main extension direction of the switching bridge, wherein the fixed contact pieces are parallel to the
  • At least one of the partial switching chambers at least two extinguishing devices are provided for extinguishing arcs, which can occur when the first and second contact regions are disconnected.
  • at least two extinguishing devices are provided for extinguishing arcs, which can occur when the first and second contact regions are disconnected.
  • Arc conductors extend from the first contact areas and second arc conductors extend from the second contact areas toward the extinguishing devices.
  • Arc conductor of the second arc conductors preferably increases in the direction of the extinguishing devices, whereby the respective arc on the way to
  • Extinguishing device is advantageously stretched.
  • a permanent magnet arrangement is provided to form in the areas between the first and second contact areas and the respective extinguishing devices a substantially homogeneous magnetic field for exerting a magnetic force on the arcs, so that at least one of the arcs, regardless of the current direction in the arc in the direction of one of Extinguishing devices is driven.
  • the permanent magnet arrangement has at least two plate-shaped magnets, wherein the magnets are arranged on longitudinal sides of the partial switching chambers, in each case adjacent to the contact areas. According to a further preferred embodiment, it is provided that the
  • Permanent magnet arrangement comprises two parallel pole plates, wherein the pole plates are interconnected by one or more permanent magnets to a substantially U-shaped profile, whereby a particularly homogeneous magnetic field of high magnetic field strength can be built.
  • FIGS. 1 and 2 an embodiment of the switch according to the invention in various representations;
  • Figure 3 shows a further embodiment of the switch according to the invention;
  • Figure 4 is a switching bridge for one of the embodiments of the switch according to the invention
  • Figure 5 shows a magnet arrangement for one of the embodiments of the switch according to the invention.
  • Arc extinguishing device 61 is moved.
  • the contact and erase arrangements of both poles are housed here in a single switching chamber.
  • the advantage of such a switch consists on the one hand in a relatively simple, easy to assemble construction, on the other hand in a switch of comparatively small installation depth. The embodiment will be described below with reference to FIGS. 1 and 2.
  • the switching chamber of the two-pole switch is subdivided in its main extension direction into two equally partitioned partial switching chambers 1, 2 or segments 1, 2 which are sealed off from one another and in which the contact and extinguishing arrangements of each pole are accommodated.
  • a channel 3 which surrounds the switching bridge 35, in each of which a bridge bridge contact piece 30 is installed.
  • the two bridge switching pieces 30 have the same installation depth and are arranged in a region of the center of the respective sub-switching chamber 1, 2, wherein the bridge switching pieces 30 extend in a direction which is rotated by 90 degrees against the main extension direction of the switching chamber.
  • the bridge switching pieces 30 have second contact areas 31 or contact pads 31 for making contact with first contact areas 11 or fixed contacts 11. From the second contact portions 31 at right angles outgoing skid-shaped legs each extend in the direction of a connecting axis of two opposing extinguishing devices 61 and are angled in such a way that second arc conductors 32 are formed whose dropouts in the off state of the switch respectively in the direction of an upper edge 65 of the extinguishing devices 61 show.
  • the fixed contact pieces 20a, 20b of the partial switching chamber 2 enter on the short side or head side of the switching chamber in this. In the area of the fixed contacts 11, the contact pieces 20a, 20b are angled or cranked, whereby the first
  • Arc conductor 12 are provided.
  • the fixed contacts 11 are in one
  • Installation depth arranged, which corresponds approximately to the center of the extinguishing chambers 61. at
  • the part switching chamber 1 with the switching pieces 10 a, 10 b is carried out analogously to the previously described part switching chamber 2.
  • the extinguishing devices 61 are executed in the illustrated embodiment as so-called Deion chambers, which consist of a stack arrangement of mutually electrically insulated sheets, each with an air gap between two adjacent sheets.
  • Deion chambers consist of a stack arrangement of mutually electrically insulated sheets, each with an air gap between two adjacent sheets.
  • Each contact pair consisting of a first contact region 11 and a second contact region 31, two of the extinguishing chambers 61 are assigned, which in the
  • Main extension direction of the switch are housed in oppositely arranged niches.
  • Each pole has, in a double-break contact arrangement, two pairs of opposite extinguishing chambers 61 symmetrical to both sides of the
  • Switching bridge 35 are arranged.
  • the described contact and erase arrangements of both poles are preferably axisymmetric to both sides of a central axis in FIG.
  • the structure of the magnetic blowing field is realized in the illustrated embodiment according to Figures 1 and 2 via a permanent magnetic arrangement.
  • This consists of two plate-shaped magnets 51 for each pole, which are arranged on the longer switching chamber wall in the region of the contact pairs 11, 31.
  • the plate-shaped magnets Be arranged outside of the chamber wall or inside, for example, in accordance with insulating pockets of the inside niche walls.
  • a switching arc arising when the contacts are opened is moved in the direction of one or the other of the two opposing extinguishing devices 61, due to the so-called magnetic blowing effect, caused by the Lorentz force, depending on the current direction.
  • FIG. 3 schematically shows a further embodiment of the switch according to the invention, which differs from the embodiment of FIGS. 1 and 2 by an alternative extinguishing arrangement without deion chambers.
  • the extinguishing arrangement is given by a niche arrangement with walls of insulating material, preferably made of thermosetting plastic or ceramic, wherein the individual niches spatially
  • FIG. 4 shows a switching bridge 35 of a further embodiment of the invention
  • Switch according to the invention which differs from the embodiment of Figures 1 and 2 by an alternative permanent magnet arrangement. Achieving higher magnetic field strengths in the region of the switching contacts can be achieved by adding a further permanent magnet 51c, preferably by integration into the
  • FIG. 5 shows a further variant of a permanent magnet arrangement for a further embodiment of the switch according to the invention.
  • magnetic blast field of great homogeneity can be achieved by an arrangement of two plane-parallel plates 55 of magnetically good conductive material, preferably of soft magnetic iron, form, which are connected by one or more permanent magnets 51 in such a way that they form an approximately U-shaped profile.
  • the polarity of the magnet 51 is indicated by the data north (N) and south (S).
  • the distance between the parallel pole plates 55 is in this case dimensioned so that they extend in close proximity along the lateral outer walls of the quenching chamber.
  • Recesses 58 are provided for the passage of bridge switching pieces 30.
  • two axisymmetric arranged permanent magnet arrangements of the type shown are provided.
  • Shielding plate 56 serves to magnetically shield the switch from the permanent magnet 51.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)

Abstract

La présente invention concerne un commutateur pour un fonctionnement multipolaire, en particulier un fonctionnement en courant continu, comprenant une chambre de commande, en particulier une chambre de commande partielle (1, 2) par pôle. La chambre de commande comprend un circuit en pont (35) mobile s'étendant à travers les deux chambres de commande partielles (1, 2), respectivement une pièce de contact de pont (30) pour chaque chambre de commande partielle (1, 2) étant présente dans le circuit en pont (35).
EP12780747.7A 2011-11-02 2012-11-02 Commutateur pour un fonctionnement à courant continu multipolaire Active EP2774158B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12780747.7A EP2774158B1 (fr) 2011-11-02 2012-11-02 Commutateur pour un fonctionnement à courant continu multipolaire
PL12780747T PL2774158T3 (pl) 2011-11-02 2012-11-02 Przełącznik dla wielobiegunowego stałoprądowego trybu pracy

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP11187497.0A EP2590192A1 (fr) 2011-11-02 2011-11-02 Commutateur pour un fonctionnement à courant continu multipolaire
EP12780747.7A EP2774158B1 (fr) 2011-11-02 2012-11-02 Commutateur pour un fonctionnement à courant continu multipolaire
PCT/EP2012/071718 WO2013064629A1 (fr) 2011-11-02 2012-11-02 Commutateur pour fonctionnement en courant continu multipolaire

Publications (2)

Publication Number Publication Date
EP2774158A1 true EP2774158A1 (fr) 2014-09-10
EP2774158B1 EP2774158B1 (fr) 2017-04-19

Family

ID=47115993

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11187497.0A Withdrawn EP2590192A1 (fr) 2011-11-02 2011-11-02 Commutateur pour un fonctionnement à courant continu multipolaire
EP12780747.7A Active EP2774158B1 (fr) 2011-11-02 2012-11-02 Commutateur pour un fonctionnement à courant continu multipolaire

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP11187497.0A Withdrawn EP2590192A1 (fr) 2011-11-02 2011-11-02 Commutateur pour un fonctionnement à courant continu multipolaire

Country Status (3)

Country Link
EP (2) EP2590192A1 (fr)
PL (1) PL2774158T3 (fr)
WO (1) WO2013064629A1 (fr)

Families Citing this family (7)

* 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
US9406465B1 (en) * 2015-07-30 2016-08-02 Carling Technologies, Inc. Polarity insensitive arc quench
DE102018204104A1 (de) * 2018-03-16 2019-09-19 Ellenberger & Poensgen Gmbh Schalteinheit zur Trennung eines Stromkreises und Schutzschalter
GB2575684A (en) 2018-07-20 2020-01-22 Eaton Intelligent Power Ltd Switching device and switching arrangement
GB201820594D0 (en) 2018-12-18 2019-01-30 Eaton Intelligent Power Ltd Contact unit for a switching device and switching device
GB2579848A (en) 2018-12-18 2020-07-08 Eaton Intelligent Power Ltd Electromagnetic drive unit for a switching device and switching device
FR3134224B1 (fr) * 2022-03-29 2024-05-03 Safran Electrical & Power Contacteur bidirectionnel double pole à double coupure à champs magnétiques inversés

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007054958A1 (de) 2007-11-17 2009-06-04 Moeller Gmbh Schaltgerät für Gleichstrom-Anwendungen
US7973625B2 (en) * 2008-06-05 2011-07-05 General Electric Company Tool free contact block
EP2463877A1 (fr) * 2010-12-07 2012-06-13 Eaton Industries GmbH Commutateur doté d'une chambre d'extinction

Also Published As

Publication number Publication date
EP2774158B1 (fr) 2017-04-19
EP2590192A1 (fr) 2013-05-08
PL2774158T3 (pl) 2017-08-31
WO2013064629A1 (fr) 2013-05-10

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