EP2927927B1 - Gleichstromschütz mit zusätzlicher schalttauglichkeit für wechselstromlasten und polung entgegen der vorzugsstromrichtung - Google Patents

Gleichstromschütz mit zusätzlicher schalttauglichkeit für wechselstromlasten und polung entgegen der vorzugsstromrichtung Download PDF

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Publication number
EP2927927B1
EP2927927B1 EP15000874.6A EP15000874A EP2927927B1 EP 2927927 B1 EP2927927 B1 EP 2927927B1 EP 15000874 A EP15000874 A EP 15000874A EP 2927927 B1 EP2927927 B1 EP 2927927B1
Authority
EP
European Patent Office
Prior art keywords
contact
direct
current contactor
contact point
contactor
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.)
Active
Application number
EP15000874.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2927927A1 (de
Inventor
Korbinian Kreuzpointner
Robert Kralik
Andrej Ignatov
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.)
Schaltbau GmbH
Original Assignee
Schaltbau 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 Schaltbau GmbH filed Critical Schaltbau GmbH
Publication of EP2927927A1 publication Critical patent/EP2927927A1/de
Application granted granted Critical
Publication of EP2927927B1 publication Critical patent/EP2927927B1/de
Active 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
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/36—Metal parts
    • H01H9/362—Mounting of plates in arc 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
    • 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
    • H01H33/08—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • 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
    • 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
    • H01H33/59—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle
    • H01H33/596—Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle for interrupting dc
    • 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

Definitions

  • the present invention relates to a direct contact DC contactor according to the preamble of independent claim 1.
  • a DC contactor has a double break with two contact points each comprising a fixed contact and a movable contact.
  • the movable contacts are arranged on a contact bridge.
  • the generic DC contactor to an arc quenching device and a blowing device, wherein the blowing device is adapted to blow a switching arc, which arises at the first contact point when opening the contact points when switching in the preferred direction of flow in the arc quenching device.
  • a commutating plate is disposed, wherein the contact bridge and the commutating are electrically isolated from each other, and wherein the commutation is electrically connected to the fixed contact of the second contact point, so that the resulting at the first contact point Switching arc when switching in the preferred direction of current skips due to the effect of the blowing device of the contact bridge on the commutation and thereby the resulting at the second contact point switching arc is bridged.
  • a generic DC contactor is for example off DE 10 2010 031 907 B9 known.
  • the contactor is very simple and is used, for example, in railway applications to switch DC up to about 3 kV nominal voltage. Since in the generic contactor of the second switching arc is bridged at the second contact point when skipping the first switching arc of the contact bridge on the commutation, the second switching arc is simply brought to extinction. It remains only the first switching arc stand, which in turn is blown by the blowing device in the arc quenching device and extinguished there.
  • each contact point are each associated with a quenching chamber and an auxiliary quenching chamber.
  • Object of the present invention is therefore to provide a DC contactor of the generic type with improved switching capability for AC loads and polarity against the preferred direction.
  • a solution according to the invention is the task before when the DC contactor has a Hilfsbogenbogenlösch observed, which is arranged between two contact rails which connect the two fixed contacts with terminals of the DC contactor, wherein the blowing device such is dimensioned and designed that the resulting at the first contact switching arc is skipped when switching against the preferred direction of flow due to the action of the blowing of the contact bridge on the fixed contact of the second contact point and is blown between the two fixed contacts through the auxiliary arc quenching device.
  • the invention provides a very simple solution to significantly improve the switching capability of the generic DC contactor for AC loads and polarity against the preferred direction.
  • the DC contactor according to the invention is furthermore extremely simple in design and can therefore be manufactured easily and inexpensively.
  • the auxiliary arc quenching device can be accommodated in a particularly space-saving manner in the DC contactor, resulting in an overall compact design of the DC contactor according to the invention.
  • the main arc quenching device of the DC contactor according to the invention comes only when switching in Preferred direction for use. It is preferably arranged adjacent to the first contact point. The resulting at the first contact switching arc then only has to cover a small way to the arc quenching device and is therefore quickly brought to extinction. Further preferably, the contact bridge and the Kirutierblech are separated by an air gap. Further preferably, the commutation plate is designed as an arc guide plate and surrounds an edge region of the arc quenching device at least partially. One of the arc root points of the resulting at the first contact point switching arc is performed in this embodiment on the arc guide along the arc quenching device. As a result, the switching arc is stretched and blown into the arc quenching device.
  • the two contact rails take on the task of directing the switching arc in the auxiliary arc quenching device, and are therefore each designed as an arc guide plate.
  • the contact rail connected to the fixed contact of the first contact point simultaneously forms the second arc guide plate for the arc quenching device and the first arc guide plate for the auxiliary arc quenching device.
  • the contact rail connected to the fixed contact of the second contact point preferably forms the second arc guide plate for the auxiliary arc quenching device.
  • the auxiliary arc quenching device is dimensioned smaller than the arc quenching device. Since the DC contactor usually only in exceptional cases must have a switching capability for AC loads and polarity against the preferred direction, and the loads to be switched are usually less than the rated switching load of the DC contactor, this results in a particularly compact design. More preferably, the auxiliary arc quenching device has fewer quenching elements than the arc quenching device.
  • the arc quenching device and / or the auxiliary arc quenching device comprise a plurality of ceramic quenching elements. Ceramic extinguishing elements have opted for the deletion of Switching arcs proven. Further preferably, at least some of the extinguishing elements of the arc quenching device are combined to form an externally removable insert, to facilitate accessibility to the first contact point for maintenance and inspection purposes. It is particularly advantageous if the insert is mechanically locked or unlocked.
  • flow channels are formed between the extinguishing elements, the flow channels each having a scattering section, wherein the scattering sections adjacent flow channels are formed differently inclined, so that a fanning of the exiting from the extinguishing elements gases is achieved.
  • the contact bridge is tapered at an end facing the commutation plate.
  • the contact bridge is tapered at this end. This ensures that the switching arc jumps in the preferred direction of current quickly and reliably on the commutation.
  • the blowing device has a permanent magnet, which is arranged adjacent to one end of the contact bridge, wherein a ceramic protective element is arranged between the permanent magnet and the end of the contact bridge.
  • a ceramic protective element is arranged between the permanent magnet and the end of the contact bridge.
  • the protective element is plate-shaped.
  • the permanent magnet is arranged at that end of the contact bridge, which faces the Karlutierblech.
  • the commutation plate is at least partially covered on a side facing away from the arc quenching device by a shielding.
  • further electrical or electronic components of the DC contactor can be arranged in the region of the outer side of the commutation plate, without causing any disturbing effects or damage due to the switching arc.
  • the electrical or electronic components may be part of the control of the DC contactor, for example, or it may be an auxiliary switch.
  • the contact points and the commutation are insulated by an insulating film at least partially against a drive and / or a control of the DC contactor.
  • an insulating film at least partially against a drive and / or a control of the DC contactor.
  • a protective covering is preferably arranged between the insulating film and the second contact point.
  • this is plate-shaped and made of steel.
  • FIG Fig. 1 An oblique view of a DC contactor 1 according to the invention is shown in FIG Fig. 1 shown.
  • the inner structure of the DC contactor 1 is in Fig. 2 shown.
  • the DC contactor 1 has a double break with two contact points 2 and 3.
  • the first contact point consists of the fixed contact 4 and the movable contact 5, the second contact point 3 comprises the fixed contact 6 and the associated movable contact 7.
  • the two movable contacts 5 and 7 are arranged on a contact bridge 8.
  • the contact bridge 8 is actuated by an electromagnetic drive 25, which is controlled by the controller 23.
  • the controller 23 is arranged outside the housing 31 of the DC contactor 1 according to the invention and therefore also in Fig. 1 to recognize.
  • Each of the two fixed contacts 4 and 6 is connected via a contact rail 14 or 15 with a corresponding terminal contact 27 of the DC contactor.
  • the DC contactor 1 is equipped with an arc quenching device 9 and a blowing device 10, which consists essentially of a permanent magnet.
  • the magnetic field of the permanent magnet 10 is aligned such that a switching arc emerging at the first contact point 2 in the preferred current direction is driven into the arc quenching device 9.
  • corresponding pole plates 30 known from the prior art are arranged on both sides of the housing. One of the two pole plates is in Fig. 1 shown.
  • the DC contactor 1 has a so-called commutation plate 11, which starts near the first contact point 2 and engages in the left edge region of the arc quenching device 9 like a clamp.
  • the Schlutierblech 11 is electrically connected via a kauslitze 12 with the fixed contact 6 of the second contact point.
  • the Kirutierblech 11 and connected to the first fixed contact 4 contact rail 14 then act as Lichtbogenleitbleche. Through it, the resulting at the first contact point 2 switching arc is stretched while it is blown by the permanent magnet 10 in the arc quenching device 9. As a result, a fast and safe deletion of the switching arc is achieved.
  • a plate-shaped ceramic protective element 21 is arranged between the end 20 of the contact bridge 8 and the permanent magnet 10.
  • the DC contactor according to the invention is equipped with an auxiliary arc quenching device 13. This is located between the two contact rails 14 and 15 of the two fixed contacts 4 and 6.
  • the resulting at the first contact point 2 switching arc is due to the action of the magnetic field along the contact bridge 8 from the movable contact 5 of the first contact point in the direction of the movable contact 7 of the second Pad driven and jumps over on the adjacent fixed contact 6 of the second contact point or merges with the resulting at the second contact point 3 switching arc.
  • the switching arc produced at the second contact point 3 is extinguished as soon as the switching arc arising at the first contact point jumps from the contact bridge 8 to the fixed contact 6 of the second contact point 3. From this point on, the two contact rails 14 and 15 act as arc guide plates.
  • the switching arc is driven by the blowing action of the permanent magnet 10 along these two Lichtbogenleitbleche in the auxiliary arc quenching device 13 and extinguished there.
  • the DC contactor according to the invention is therefore also suitable for switching off currents against the preferred direction or AC loads to a certain degree safely and reliably.
  • the contact points and the commutation are insulated by an insulating film 24 to drive and control.
  • the insulating film 24 is covered in this area by a protective covering in the form of a small steel plate 26.
  • a shielding element 22 is arranged between the controller 23 and the commutation plate 11 or the arc quenching device 9.
  • Both the arc quenching device 9 and the auxiliary arc quenching device 13 consist of several ceramic quenching elements 16.
  • One of the quenching elements is shown in detail in FIG Fig. 3 shown. How out Fig. 3 becomes clear, in each case between two adjacent extinguishing elements, a flow channel 17 is formed through which the through the Switching arc generated plasma is led to the outside. Towards the outlet end 19, the flow channel has a scattering section 18, the scattering sections of adjacent flow channels being differently inclined, so that a fanning out of the gases emerging from the extinguishing elements is achieved. As a result, the plasma generated by the switching arc can be transported away faster, whereby the switching arc can be deleted faster.
  • the extinguishing elements of the arc quenching device 9 can be removed without having to disassemble the housing 31 of the DC contactor according to the invention for this purpose.
  • the removable extinguishing elements are by means of in the FIGS. 1 and 2 shown staples 28 summarized to a removable insert. This can be done by means of in Fig. 1 bolt shown 29 are locked or unlocked.
  • the insert in this case comprises those extinguishing elements by which the first contact point 2 is covered. By removing the insert, the contacts can be checked accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
EP15000874.6A 2014-04-02 2015-03-24 Gleichstromschütz mit zusätzlicher schalttauglichkeit für wechselstromlasten und polung entgegen der vorzugsstromrichtung Active EP2927927B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014004843.8A DE102014004843A1 (de) 2014-04-02 2014-04-02 Gleichstromschütz mit zusätzlicher Schalttauglichkeit für Wechselstromlasten und Polung entgegen der Vorzugsstromrichtung

Publications (2)

Publication Number Publication Date
EP2927927A1 EP2927927A1 (de) 2015-10-07
EP2927927B1 true EP2927927B1 (de) 2016-05-25

Family

ID=52779447

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15000874.6A Active EP2927927B1 (de) 2014-04-02 2015-03-24 Gleichstromschütz mit zusätzlicher schalttauglichkeit für wechselstromlasten und polung entgegen der vorzugsstromrichtung

Country Status (10)

Country Link
US (1) US9558899B2 (uk)
EP (1) EP2927927B1 (uk)
CN (1) CN104979116B (uk)
DE (1) DE102014004843A1 (uk)
DK (1) DK2927927T3 (uk)
ES (1) ES2576506T3 (uk)
PL (1) PL2927927T3 (uk)
RU (1) RU2606232C2 (uk)
UA (1) UA115564C2 (uk)
ZA (1) ZA201502232B (uk)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106098477A (zh) * 2016-08-15 2016-11-09 贵州天义电器有限责任公司 一种带磁线圈灭弧的高压直流接触器
PL3293748T3 (pl) 2016-09-09 2020-11-16 Microelettrica Scientifica S.P.A. Ulepszony stycznik do zastosowań przy przełączeniach wysokoprądowych
EP4252629A3 (en) 2016-12-07 2023-12-27 Biora Therapeutics, Inc. Gastrointestinal tract detection methods, devices and systems
JP7150723B2 (ja) 2016-12-14 2022-10-11 ビオラ・セラピューティクス・インコーポレイテッド 消化管疾病のインテグリン阻害薬による治療
DE102017106300B4 (de) * 2017-03-23 2023-07-27 Schaltbau Gmbh Schaltgerät mit verbesserter permanentmagnetischer Lichtbogenlöschung
EP3810085A1 (en) 2018-06-20 2021-04-28 Progenity, Inc. Treatment of a disease of the gastrointestinal tract with an integrin inhibitor
CN109119291B (zh) * 2018-09-10 2024-02-20 上海良信电器股份有限公司 一种直流接触器灭弧结构
EP3624157A1 (en) * 2018-09-17 2020-03-18 Microelettrica Scientifica S.p.A. Improved switching device or contactor with high arc extinguishing capabilities
EP3624156B1 (en) * 2018-09-17 2022-07-06 Microelettrica Scientifica S.p.A. Improved contactor device structure with improved auxiliary switch
EP3883635A1 (en) 2018-11-19 2021-09-29 Progenity, Inc. Methods and devices for treating a disease with biotherapeutics
WO2021119482A1 (en) 2019-12-13 2021-06-17 Progenity, Inc. Ingestible device for delivery of therapeutic agent to the gastrointestinal tract

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DE7105342U (de) * 1970-11-03 1971-05-27 Hartmann & Braun Ag Polarisiertes elektromagnetisches Re lais
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
US5761025A (en) * 1995-02-13 1998-06-02 Iversen; Arthur H. Low cost power switchgear
DE69832625T2 (de) * 1997-09-18 2006-08-10 Eaton Electric B.V. Elektromagnetischer betätiger
RU2178215C1 (ru) * 2001-02-22 2002-01-10 Научно-производственное предприятие "Элвест" Электромагнитный привод
RU2233495C1 (ru) * 2002-10-24 2004-07-27 Общество с ограниченной ответственностью Научно-производственное предприятие "ЭЛВЕСТ" Электромагнитный привод
RU28418U1 (ru) 2002-12-10 2003-03-20 Открытое акционерное общество "Чебоксарский электроаппаратный завод" Контактор
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DE102010031907B9 (de) 2010-07-22 2013-01-17 Schaltbau Gmbh Unidirektional schaltendes DC-Schütz
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EP2600371A1 (de) * 2011-11-29 2013-06-05 Eaton Industries GmbH Schaltgerät geeignet für einen Gleichstrombetrieb

Also Published As

Publication number Publication date
US9558899B2 (en) 2017-01-31
EP2927927A1 (de) 2015-10-07
US20150287560A1 (en) 2015-10-08
DE102014004843A1 (de) 2015-10-08
PL2927927T3 (pl) 2016-11-30
RU2015110602A (ru) 2016-10-20
ZA201502232B (en) 2016-01-27
RU2606232C2 (ru) 2017-01-10
UA115564C2 (uk) 2017-11-27
DK2927927T3 (en) 2016-07-04
CN104979116B (zh) 2017-06-20
CN104979116A (zh) 2015-10-14
ES2576506T3 (es) 2016-07-07

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