EP2747108A2 - Commutateur pour un fonctionnement à courant continu - Google Patents

Commutateur pour un fonctionnement à courant continu Download PDF

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Publication number
EP2747108A2
EP2747108A2 EP20130199096 EP13199096A EP2747108A2 EP 2747108 A2 EP2747108 A2 EP 2747108A2 EP 20130199096 EP20130199096 EP 20130199096 EP 13199096 A EP13199096 A EP 13199096A EP 2747108 A2 EP2747108 A2 EP 2747108A2
Authority
EP
European Patent Office
Prior art keywords
contact
arc
switching device
current path
current
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
EP20130199096
Other languages
German (de)
English (en)
Other versions
EP2747108B1 (fr
EP2747108A3 (fr
Inventor
Karsten Gerving
Johannes Meissner
Volker Lang
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 Intelligent Power Ltd
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 PL13199096T priority Critical patent/PL2747108T3/pl
Publication of EP2747108A2 publication Critical patent/EP2747108A2/fr
Publication of EP2747108A3 publication Critical patent/EP2747108A3/fr
Application granted granted Critical
Publication of EP2747108B1 publication Critical patent/EP2747108B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01H9/34—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
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/02—Details
    • H01H33/04—Means for extinguishing or preventing arc between current-carrying parts
    • H01H33/18—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H33/182—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
    • 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
    • H01H9/40—Multiple main contacts for the purpose of dividing the current through, or potential drop along, the arc
    • 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 switching device suitable for a DC operation which at least a first current path and a second current path, each having a first terminal and a second terminal, wherein the first terminals to a first side of the switching device and the second terminals to a second side of the switching device are arranged.
  • At least one contact pair is provided per current path, which has a first contact and a second contact, wherein at least the second contact is arranged on a contact piece that is movable to the first contact, and the two contacts are in contact with one another in the switched-on state of the switching apparatus.
  • At least one extinguishing device is provided per contact pair for extinguishing an arc occurring between the contacts.
  • Such a switching device is from the EP 2 061 053 A2 known.
  • To provide a switching device for DC applications there is proposed to use the housing of a switching device for AC applications, wherein additionally at least one magnet is provided which has a magnetic field with substantially transverse to the separation paths of the current paths of the AC switching device field lines.
  • the housing In the housing, three receiving areas are provided for each one flow path, wherein each current path is associated with a movable switching contact element and two opposing fixed switching contact elements.
  • the three movable switching contact elements are jointly movable between a closed position, which corresponds to the switched-on state of the switching device, and an open position, which corresponds to a switched-off state of the switching device.
  • each current path is each associated with two arc quenching devices, which are each in the form of individual stacked, electrically insulated from each other quenching plates are formed.
  • each current path has two separating sections which, when the movable switching contact elements are open, form between the ends thereof and the first and second stationary switching contact elements assigned to these ends. When opening the switching contact elements forms an arc along the separation sections, which with Help the arc extinguishing equipment can be deleted.
  • DC applications since erasure of an arc can not be achieved due to current zero crossing, as in AC applications, DC applications require the provision of a magnetic field which drives the arc into one of the arc extinguishing devices.
  • This magnetic field is formed by permanent magnets, wherein a magnetic field is built up with field lines in an orientation which extend transversely to the separation lines and generate a Lorenz force on these arcs forming parting lines, which drives the arcs in the direction of one of the arc extinguishing devices.
  • an arc is driven between a first contact pair in the direction of a first arc quenching device and the arc between a second contact pair in a second arc quenching device. Since the movement of the arcs depends on the current direction, the switching device is suitable only for one direction of current, ie polarity.
  • the switching device were also operated in a reverse current direction, the arcs would not be driven into the arc extinguishing devices, but in the opposite direction to a switching bridge. Even if one reversed the magnetic polarity of one of the arc extinguishing devices, one of the arcs would always run in the direction of the switching bridge, which would result in a reduced service life, since the switching bridge or other components would be permanently damaged or even destroyed.
  • the EP 0 789 372 B1 also shows a switching device of the type mentioned.
  • a fixed contact is in this case provided with a fixed sheet traveler, which is designed circular arc.
  • a movable sheet traveler is provided, which can form an arc between the two bow travelers, which is moved via the arc runner assembly depending on the direction of current in different directions.
  • the latter is deflected about a center either in a first direction of rotation or in a second direction of rotation opposite to the first direction of rotation, wherein the center corresponds to the center of the stationary sheet traveler.
  • An arc having a first current direction is directed into a first arcuate channel and an arc having a second current direction opposite to the first current direction is directed into a second arcuate channel.
  • the two Bogen incidentrkanäle extend around the center around and are separated by an insulating wall, juxtaposed.
  • the bowler channels are each Part of an extinguishing device for extinguishing the arc.
  • the extinguishing devices further comprise quenching plates, which are arranged radially with respect to the stationary sheet traveler. The quenching plates are arranged such that they cover both Bogenorganizrkanäle and thus are part of both extinguishing devices.
  • Object of the present invention is to provide a switching device that can be operated independently of polarity and is as simple as possible.
  • a switching device suitable for a DC operation which at least a first current path and a second current path, each having a first terminal and a second terminal, wherein the first terminals to a first side of the switching device and the second terminals to a second Side of the switching device are arranged comprises.
  • At least one contact pair is provided per current path, which has a first contact and a second contact, wherein at least the second contact is arranged on a contact piece that is movable to the first contact, and the two contacts are in contact with one another in the switched-on state of the switching apparatus.
  • At least one extinguishing device is provided per contact pair for extinguishing an arc occurring between the contacts.
  • the erasing means of the two current paths are arranged in a direction from the first terminals to the second terminals one behind the other and at least partially in register with each other.
  • An advantage of this arrangement is that a very compact design of the switching device is achieved by the successive arranging the Lösch foundeden the two current paths and by the overlap or overlap in the direction between the first terminals and the second terminals.
  • the supply connections are on one side of the switchgear and the outgoing connections are on the other side of the switchgear.
  • the first connections and the second connections are therefore on opposite sides.
  • the erasing means of two current paths based on the direction between the first terminals and the second terminals, side by side, so that a relatively wide design of a switching device is required.
  • the extinguishing equipment has a positive effect on the external dimensions of the switching device.
  • the extinguishing devices in which the arcs are driven transversely to the course of the current paths in the extinguishing device, the extinguishing devices relative to the width of the individual switching path are relatively wide and would therefore result in an arrangement side by side to significantly larger dimensions of the switching device.
  • the arrangement behind one another and at least partially in overlap with each other is particularly positive.
  • the current paths are preferably arranged approximately parallel to one another, wherein the first side of the switching device is arranged away from the second side of the switching device.
  • each extinguishing device has exactly one extinguishing chamber, wherein an arc with a first current direction in a first direction in the said quenching chamber and an arc with a second current direction in a second direction in said quenching chamber is passed.
  • each arc regardless of its current direction, directed in the same deletion device.
  • the quenching chamber is preferably arranged on one side of one of the two contacts of a contact pair, which faces away from the respective other contact.
  • the quenching chamber is preferably located on the side facing away from the fixed contact side of the movable contact.
  • a first arc guide arrangement and a second arc guide arrangement are provided per extinguishing device, by means of which an arc occurring between the contacts of a contact pair is conducted into the extinguishing chamber of the respective extinguishing device of the contact pair for extinguishing the arc.
  • the first arc guide arrangement can in this case be arranged such that an arc is deflected with a first current direction in a first direction of rotation and conducted to the quenching chamber.
  • a second arc guide arrangement may be designed such that an arc with a second current direction is deflected in a direction of rotation opposite to the first direction of rotation and conducted to the quenching chamber.
  • the quenching chamber is formed as a deion-quenching chamber with a plurality of mutually electrically isolated, mutually parallel quenching plates.
  • the arc guide assemblies each include a first baffle and a second baffle, the first two baffles extending in opposite directions from the first contact.
  • the first two baffles take the extinguishing device between them.
  • the quenching plates are preferably aligned parallel to the direction of movement of the bridge switching piece. In addition, the quenching plates are aligned parallel to the respective current path.
  • At least one arc runner arrangement can be provided, which generates a magnetic field for generating a Lorenz force on the arc, at least in the area of the contact pairs.
  • the first current path and the second current path are designed such that the contact pairs of the two current paths with respect to the direction between the first terminals and the second Terminals are arranged one behind the other.
  • Two contact pairs can be provided per current path, each of which forms a double-interrupting switching arrangement with a first contact and a second contact, the second contacts being arranged on a bridge contact piece that is movable relative to the first contacts and electrically connects the two second contacts to one another.
  • the first current path and the second current path each have two contact carriers carrying the first contacts.
  • the contact carriers of the first current path are in this case arranged to extend in the direction of the second current path, and the contact carriers of the second current path are arranged to extend in the direction of the first current path.
  • the contact pairs of the first current path and the contact pairs of the second flow path all be arranged on a common axis, so that the extinguishing devices can be arranged completely overlapping one behind the other.
  • the arc runner assembly includes an outer pole member and an inner pole member. Both pole elements are designed as U-shaped profiles, each with a base web and two of the base web projecting pole plates.
  • the inner pole element is arranged within the outer pole element, wherein at least one permanent magnet is arranged between the base webs of the two pole elements. Between each of a pole plate of the outer pole member and a pole plate of the inner pole member, a contact pair is arranged.
  • the electrical switching device 1 comprises a total of two poles, ie two current paths, namely a first current path 2 and a second current path 3. In principle, however, more than two current paths can be provided, preferably two pairs of current paths, as described below, are provided.
  • the two current paths 2, 3 are each with a switching arrangement, as explained in more detail below, and thus can be electrically interrupted.
  • the two current paths 2, 3 can each be integrated into a DC circuit and serve to interrupt a current flow.
  • FIG. 1 shows here the switching device 1 with a housing 6 and the therein current paths 2, 3.
  • Die FIG. 2 which together with the following FIG. 1 is described, shows only the two current paths 2, 3rd
  • the switching device 1 comprises a housing 6, in which the switch arrangement are received as explained below.
  • the current paths 2, 3 run side by side from a first side 16 of the switching device 1 to a second side 17 of the switching device 1.
  • the first current path 2 comprises a first terminal 4 and a second terminal 5 for connecting the first current path 2 with terminals of a DC circuit.
  • the two terminals 4, 5 are located on opposite sides of the switching device 1 and protrude out of the housing 6. Accordingly, the second current path 3 has a first connection 4 'and a second connection 5', wherein the first connection 4 'is arranged on the same side as the first connection 4 of the first flow path 2.
  • the second connection 5' of the second flow path 3 is arranged on the same side as the second terminal 5 of the first current path 2.
  • the first terminal 4 leads to a first contact pair 7, which is arranged in a first switching chamber 13 of the housing 6.
  • the second connection 5 leads to a second contact pair 8, which is arranged in a second switching chamber 14 of the housing 6.
  • the two switching chambers 13, 14 are electrically insulated from each other in the housing 6 and arranged in a direction from the first terminal 4 to the second terminal 5 one behind the other and in register with each other.
  • the first terminal 4 is electrically connected to a contact carrier in the form of a fixedly held fixed contact carrier 11, on which a first contact 9 of the first contact pair 7 is arranged.
  • a second contact 18 is movably arranged.
  • the second contact 18 is in the in FIGS. 1 and 2 shown representations vertically adjustable.
  • the second contact 18 is provided on an electrically conductive contact carrier in the form of a bridge contact piece 15, which via a switching bridge 20 is adjustable.
  • a switching bridge 20 is adjustable.
  • the first contact 9 and the second contact 18 are held in contact with each other.
  • the first contact 9 and the second contact 18 are kept out of contact with each other.
  • the second terminal 5 leads to a first contact 10 of the second contact pair 8, which is arranged on a further contact carrier in the form of a stationary held fixed contact carrier 12.
  • a second contact 19 is movably held, which is also arranged on the bridge contact piece 15 and is electrically connected to the second contact 18 of the first contact pair 7.
  • the fixed contact carriers 11, 12 of both current paths 2, 3 are arranged such that the first contacts (fixed contacts) are arranged on a common axis, wherein the axis runs parallel to a main extension direction of the two current paths 2, 3.
  • an erasing device 21, 22 is provided on the side of the first contact 9, 10 facing away from the respective second contact 18, 19, wherein the two erasing devices 21, 22 of the two contact pairs 7, 8 are constructed identically.
  • a first erasure device 21 is assigned to the first contact pair 7 and a second erasure device 22 to the second contact pair 8.
  • Both extinguishing devices each comprise extinguishing plates 23, which are arranged electrically isolated from each other in parallel to each other and are themselves electrically conductive. They thus form a Deion-quenching chamber.
  • the arc runner arrangement 24 comprises an outer pole element 25 and an inner pole element 26.
  • the two pole elements 25, 26 each have a base web 27, 28, protruding from each of which a first pole plate 29, 30 and a second pole plate 31, 32, the two Pole plates 29, 39, 31, 32 of a pole element 25, 26 parallel to each other.
  • the inner pole member 26 is in his Dimensions smaller than the outer pole member 25, so that the inner pole member 26 can be disposed within the outer pole member 25.
  • all the pole plates 29, 30, 31, 32 of the two pole elements 25, 26 are arranged parallel to and spaced from each other. Between the two base webs 27, 28 of the two pole elements 25, 26, a distance is likewise provided, wherein a permanent magnet 33 is arranged between the two base webs 27, 28. Between the two first pole plates 29, 30, the first contact pair 7 and between the two second pole plates 31, 32, the second contact pair 8 is arranged. Between the first pole plate 30 and the second pole plate 32 of the inner pole member 26, the switching bridge 20 is arranged.
  • FIG. 6 The exact structure can also be the FIG. 6 be removed. It can be seen that in the base web 27 of the outer pole member 25, a plurality of openings 34 is provided. These serve to receive blow-out channels 35 of an insulating element 36.
  • the insulating member 36 isolates the two switching chambers 13, 14 from each other, wherein the Ausblaskanäle 35 serve to blow out arc gases from the switching chambers 13, 14 to the outside.
  • the individual pole plates 29, 30, 31, 32 are arranged transversely to the current paths 2, 3 and cause a Lorentz force on an arc, which forms between the contacts 9, 10, 18, 19, so that the arc in the extinguishing device 21, 22 can be driven.
  • FIG. 3 shows a cross section through the first switching chamber 13. It can be seen that for directing an arc, which forms between the first contact 9 and the second contact 18, a first arc guide 37 and a second arc guide 38 are provided.
  • the first arc guiding device 37 serves to guide an arc with a first current direction into the first erasing device 21.
  • the second arc guiding device 38 serves to conduct an arc with a second current direction into the first erasing device 21.
  • Both arc guiding devices 37, 38 each have a first guide plate 39, 40 and a second guide plate 41, 42, between which the arc is formed further.
  • the first baffles 39, 40 are connected to the first fixed contact carrier 11 ( FIG. 4 ).
  • the second guide plates 41, 42 are connected to the bridge contact piece 15, wherein the second guide plates 41, 42 are formed integrally with the bridge contact piece 15 ( FIG. 5 ).
  • the first guide plate 39 of the first arc guide device 37 extends in FIG. 3 first to the left and then 90 ° deflected upward, wherein the distance between the first guide plate 39 and the second guide plate 41 increases successively.
  • the arc is therefore formed between these two baffles 39, 41 further and is driven by the first pair of contacts 7 in a first direction of flow to the left and then upwards.
  • the Ausblaskanäle 35 are then provided to blow out the arc gases from the housing 6.
  • the second arc guide device 38 is constructed mirror-symmetrically identical.
EP13199096.2A 2012-12-20 2013-12-20 Commutateur pour un fonctionnement à courant continu Active EP2747108B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL13199096T PL2747108T3 (pl) 2012-12-20 2013-12-20 Łącznik odpowiedni do pracy stałoprądowej

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012112772 2012-12-20

Publications (3)

Publication Number Publication Date
EP2747108A2 true EP2747108A2 (fr) 2014-06-25
EP2747108A3 EP2747108A3 (fr) 2014-11-19
EP2747108B1 EP2747108B1 (fr) 2017-09-20

Family

ID=49880557

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13199096.2A Active EP2747108B1 (fr) 2012-12-20 2013-12-20 Commutateur pour un fonctionnement à courant continu

Country Status (3)

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US (1) US9129761B2 (fr)
EP (1) EP2747108B1 (fr)
PL (1) PL2747108T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2631928A1 (fr) * 2011-11-29 2013-08-28 Eaton Industries GmbH Système d'aimant permanent pour un circuit d'attaque à arc lumineux et appareil de commutation
JP6548905B2 (ja) * 2015-02-06 2019-07-24 富士通コンポーネント株式会社 スイッチ

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0789372B1 (fr) 1996-02-08 2000-05-10 Eaton Corporation Interrupteur électrique comprenant un dispositif d'extinction
EP2061053A2 (fr) 2007-11-17 2009-05-20 Moeller GmbH Commutateur destiné à des applications à courant continu

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DE1126479B (de) 1957-10-11 1962-03-29 Bbc Brown Boveri & Cie Kontaktbrueckentraeger fuer ein elektromagnetisches Schuetz
DE1160922B (de) 1962-02-03 1964-01-09 Siemens Ag Lichtbogenkammer fuer Gleich- und Wechselstromschalter
US4502033A (en) * 1982-07-06 1985-02-26 Texas Instruments Incorporated Circuit control device
DE8410454U1 (de) 1984-04-04 1985-05-15 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Lichtbogenlöscheinrichtung für Schaltgeräte der elektrischen Energietechnik
US5004874A (en) * 1989-11-13 1991-04-02 Eaton Corporation Direct current switching apparatus
US5138122A (en) * 1990-08-29 1992-08-11 Eaton Corporation Bi-directional direct current switching apparatus having arc extinguishing chambers alternatively used according to polarity applied to said apparatus
US5416455A (en) * 1994-02-24 1995-05-16 Eaton Corporation Direct current switching apparatus
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DE60019912T2 (de) * 1999-10-14 2006-01-12 Matsushita Electric Works, Ltd., Kadoma Kontaktvorrichtung
DE102006016273A1 (de) 2006-03-31 2007-10-04 Siemens Ag Elektrisches Schaltgerät
EP2590192A1 (fr) 2011-11-02 2013-05-08 Eaton Industries GmbH Commutateur pour un fonctionnement à courant continu multipolaire
EP2597665A1 (fr) 2011-11-24 2013-05-29 Eaton Industries GmbH Commutateur pour courant continu doté d'au moins une chambre de commutation
EP2597664A1 (fr) 2011-11-24 2013-05-29 Eaton Industries GmbH Commutateur pour courant continu doté d'au moins une chambre de commutation
EP2600371A1 (fr) 2011-11-29 2013-06-05 Eaton Industries GmbH Appareil de commutation pour un fonctionnement à courant continu
EP2608234A1 (fr) 2011-12-22 2013-06-26 Eaton Industries GmbH Disjoncteur à courant continu

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0789372B1 (fr) 1996-02-08 2000-05-10 Eaton Corporation Interrupteur électrique comprenant un dispositif d'extinction
EP2061053A2 (fr) 2007-11-17 2009-05-20 Moeller GmbH Commutateur destiné à des applications à courant continu

Also Published As

Publication number Publication date
PL2747108T3 (pl) 2018-05-30
EP2747108B1 (fr) 2017-09-20
US9129761B2 (en) 2015-09-08
EP2747108A3 (fr) 2014-11-19
US20140175056A1 (en) 2014-06-26

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