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EP3011575B1 - Dispositif de transfert de forces - Google Patents

Dispositif de transfert de forces Download PDF

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Publication number
EP3011575B1
EP3011575B1 EP14747005.8A EP14747005A EP3011575B1 EP 3011575 B1 EP3011575 B1 EP 3011575B1 EP 14747005 A EP14747005 A EP 14747005A EP 3011575 B1 EP3011575 B1 EP 3011575B1
Authority
EP
European Patent Office
Prior art keywords
housing
switching device
limb
leg
supporting plate
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
EP14747005.8A
Other languages
German (de)
English (en)
Other versions
EP3011575A1 (fr
Inventor
Ludvik Godesa
Martin Böttcher
Karsten Freundt
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.)
Siemens AG
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP3011575A1 publication Critical patent/EP3011575A1/fr
Application granted granted Critical
Publication of EP3011575B1 publication Critical patent/EP3011575B1/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
    • H01H50/00—Details of electromagnetic relays
    • H01H50/02—Bases; Casings; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H01H1/54—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position by magnetic force
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/56—Contact spring sets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/30—Electromagnetic relays specially adapted for actuation by AC
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H77/00—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting
    • H01H77/02—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism
    • H01H77/10—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening
    • H01H77/101—Protective overload circuit-breaking switches operated by excess current and requiring separate action for resetting in which the excess current itself provides the energy for opening the contacts, and having a separate reset mechanism with electrodynamic opening with increasing of contact pressure by electrodynamic forces before opening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
    • H01H2033/6648—Contacts containing flexible parts, e.g. to improve contact pressure
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/666—Operating arrangements
    • H01H2033/6665—Details concerning the mounting or supporting of the individual vacuum bottles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2235/00—Springs
    • H01H2235/01—Spiral spring
    • 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
    • H01H33/022—Details particular to three-phase circuit breakers
    • 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
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/6606—Terminal arrangements

Definitions

  • the invention relates to a device for transmitting forces on a Beweg.an gleichbolzen a contact system of a moving contact and another contact of a switching device, with an at least partially flexible, provided for electrically connecting the Beweg.an gleichbolzens with a connection of the switching device guide element with at least one leg and a second leg which are arranged for mutual current flow, so as to generate an electromagnetic force, wherein the first leg is arranged stationarily in a housing of the switching device.
  • the force transfer device disclosed therein comprises an assembly having an at least partially flexible baffle having a first leg and a second leg arranged for counter current flow so as to generate an electromagnetic force and includes a latchable lever assembly through which the electromagnetic force on the one hand to increase the contact pressure force in the closed contact system and on the other hand in a turn-off operation to support the opening operation of the contact system is available.
  • the document " WO 93/20571 A1 discloses a device for transmitting forces on a BewegWalletan gleichbolzen a contact system, according to the preamble of claim 1.
  • the object of the present invention is to develop a device of the type mentioned, which has a simple structure.
  • the housing of the switching device on side walls bearing surfaces for the stationary arrangement of the first leg.
  • the housing of the switching device has an internal dimension between its side walls, which is slightly larger as an outer dimension of the support plate such that the support plate is slidably guided within the housing between the side walls of the housing.
  • the housing of the switching device has an inner dimension between a guide surface of a first terminal and a further guide element of a rear housing wall, which is slightly larger than an outer dimension of the support plate such that the support plate within the housing between the guide surface and the another guide element of the housing is slidably guided.
  • a sliding movable guide of the support plate is formed within the housing of the switching device in a simple manner , So that in particular advantageously occur in a short-circuit current transverse forces do not lead to a deflection or transverse stress of the entire arrangement, but are absorbed by the leadership of the support plate within the housing of the switching device of this, without transverse stresses such as Bewegumblean gleichbolzen or other movable Parts occur.
  • FIG. 1 shows a switching device 1 in the form of a circuit breaker with a three-phase arrangement, as used for example for power distribution in the medium voltage range.
  • a pole 2, 3, 4 is provided in each case with a housing 5.
  • the housing 5 is typically made of an insulating material, such as epoxy or other plastic, to the poles 2, 3 and 4 against each other electrically isolate.
  • the poles 3 and 4 have the same structure. For the sake of clarity and for the purpose of better description of the pole 4, only the pole housing is shown.
  • Each of the poles 2, 3 and 4 comprises a vacuum interrupter 6 with a arranged in a vacuum-tight housing, figuratively not apparent contact system of a moving contact and a fixed contact for switching or interrupting a guided through the switching device 1 current, in particular, for example, in a short circuit to a predetermined time the switching device 1 is provided for switching off the connected to the switching device 1 part of the power supply network.
  • the moving contact of the contact system of the vacuum interrupter 6 is brought out of the vacuum interrupter 6 vacuum-tight via a BewegCountan gleichbolzen 7 and mechanically coupled via a drive rod 8 with a figuratively also not shown drive for initiating a drive movement to open or close the contact system, wherein a figuratively not shown contact pressure spring via the drive rod exerts a contact pressure force on the moving contact of the vacuum interrupter in the closed state.
  • the drive rod 8 has an insulating element 10 provided with ribs 9 for electrical decoupling of the drive and moving contact connection bolts.
  • the BewegCountan gleichbolzen 7 is electrically connected to a first terminal 11 of the switching device 1 via a flexible conductor element 12 which is fixed contact of the contact system of the vacuum interrupter 6 electrically connected via a fixed contact connection pin to a second terminal 13 of the switching device 1, wherein the first terminal 11 and the second terminal 13 are provided for electrically conductive connection, for example with a switchgear or an energy distribution network.
  • the flexible conductor element 12 comprises a first leg 14, which is arranged stationarily in the housing 5, in which it rests on bearing surfaces 15 of the pole housing 5, which are better visible in the housing of the pole 4.
  • a second leg 16 of the flexible conductor element 12 is electrically conductively connected to the BewegCountan gleichbolzen 7 and guided on a fixed to the BewegTypean gleichbolzen 7 support plate along and held it.
  • the first leg 14 and the second leg 16 are arranged such that a guided through the switching device 1 current flows through the first leg 14 and the second leg 16 in opposite directions, so that an electromagnetic repulsive force between the first leg 14 and the second leg 16 is produced.
  • the second leg 16 is guided and held below the support plate 17 along this, so that such electromagnetic repulsive force between the first leg 14 and second leg 16 by the stationary arrangement of the first leg 14 on the bearing surfaces 15 of the housing 5 via the second leg 16 acts on the support plate and thus presses the Bewegumblean gleichbolzen 7 upwards in the embodiment and on the contact system of moving contact and fixed contact of the vacuum interrupter 6 exerts a contact pressure force which supports or increases the contact pressure force of the contact pressure spring 9 in the closed state of the contact system.
  • the housing 5 of the poles 2, 3 and 4 of the switching device 1 have between side walls 18 and 19 an inner dimension which is slightly larger than an outer dimension of the support plate 17 such that the support plate 17 within the housing 5 between the side walls 18 and 19th of the housing 5 of the poles 2, 3 and 4 is slidably guided, so that occurring lateral forces are absorbed at a short circuit current from the housing 5, in particular not to a deflection of movable Can lead parts such as the Bewegjoran gleichbolzen or the flexible conductor elements. Furthermore, the support plate is guided in addition to the lateral guide on the rear housing wall of the housing 5 and the front of a provided on the first terminal 11 guide member, as with respect to the FIG. 2 explained in more detail below.
  • FIG. 2 shows a detailed view of the pole 2 from the FIG. 1 with the vacuum interrupter 6 and the BewegCountan gleichbolzen 7, which is electrically connected via the flexible conductor element 12 to the first terminal 11.
  • the second leg 16 of the flexible conductor element 12, which is guided in the embodiment below the support plate 17 guided along this, is connected by means of fastening elements 20 with the BewegCountan gleichbolzen 7, the first leg 14 is electrically connected by means of fastening elements 21 to the first terminal 11.
  • the first leg 14 rests on the bearing surfaces 15 of the housing 5 of the switching device 1 and is thus arranged stationarily in the housing 5.
  • the insulator 10 of the drive rod 8 is also visible, as well as fasteners 22 for fixing the first terminal 11 on the housing 5.
  • the first terminal 11 further has a guide surface 23 on its side facing the support plate 17, which guide surface 23 together with a on the rear housing wall of the housing 5 provided further guide member 24 forms a guide of the support plate 17 by the distance between the guide surface 23 and the other guide member is slightly larger than the dimension of the support plate 17, such that here also a sliding guide is made possible by the analogous to the guide through the side walls 18 and 19 ensures a recording of forces and a deflection of moving parts is effectively suppressed by such forces.
  • the arrangement of the first leg 14 and second leg 16 for the opposite current flow is due to the opposing current flow a repulsive electromagnetic force generated between the first leg 14 and the second leg 16, which increases the contact pressure of the contact pressure spring and in particular at a short circuit current occurring leads to a significant increase in the contact pressure, so that in a short-circuit current, the contact system can be kept closed for a controlled time until a Short circuit is located in the power distribution network and then subsequently the contact system of the vacuum interrupter 6 can be opened to allow a shutdown of the connected via the switching device 1 to the power distribution network part.
  • Such a design of a device for transmitting forces to the BewegCountan gleichbolzen 7 makes it possible in a simple manner to use drives that require a low-cost and simple design and in particular comparatively low spring forces of the contact pressure spring, because by the electromagnetic force, the force of the contact pressure spring on the closed Contact system is increased, so that in such an arrangement higher short-circuit currents are manageable at comparatively low drive power and contact pressure spring force.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Claims (4)

  1. Dispositif de transfert de forces à un axe (7) de borne de contact mobile d'un système de contact composé d'un contact mobile et d'un autre contact d'un appareil (1) de coupure, comprenant un élément (12) conducteur, souple au moins en partie, prévu pour la liaison électrique de l'axe (7) de borne de contact mobile à une borne de l'appareil (1) de coupure et ayant au moins une première branche (14) et une deuxième branche (16), qui sont disposées, pour un flux de courant opposé, afin de produire ainsi une force électromagnétique, la première branche (14) étant disposée à poste fixe dans un boîtier (5) de l'appareil (1) de coupure,
    dans lequel la deuxième branche (16) est guidée le long d'une plaque (17) d'appui reliée de manière fixe à l'axe (7) de borne de contact mobile et y est maintenue, de manière à ce qu'une force électromagnétique, se produisant dans un court-circuit, entre la première branche (14) et la deuxième branche (16), puisse, pour augmenter une force de pression de contact appliquée par un ressort (9) de pression de contact, être appliquée à l'axe (7) de borne de contact mobile,
    caractérisé en ce que
    la plaque (17) d'appui est guidée de manière mobile à glissement dans le boîtier (5) de l'appareil (1) de coupure.
  2. Dispositif suivant la revendication 1,
    caractérisé en ce que
    le boîtier (5) de l'appareil (1) de coupure a, sur des parois (18, 19) latérales, des surfaces (15) d'application pour l'application à poste fixe de la première branche (14).
  3. Dispositif suivant la revendication 2,
    caractérisé en ce que
    le boîtier 5 de l'appareil (1) de coupure a une dimension intérieure, entre ses parois (18, 19) latérales, qui est légèrement plus grande qu'une dimension extérieure de la plaque (17) d'appui, de manière à ce que la plaque (17) d'appui soit guidée de manière mobile à glissement dans le boîtier (5) entre les parois (18, 19) latérales du boîtier (5).
  4. Dispositif suivant la revendication 2 ou 3,
    caractérisé en ce que
    le boîtier (5) de l'appareil (1) de coupure a une dimension intérieure, entre une surface (23) de guidage, une première borne (11) et un autre élément (24) de guidage d'une paroi arrière du boîtier, qui est légèrement plus grande qu'une dimension extérieure de la plaque (17) d'appui, de manière à ce que la plaque (17) d'appui soit guidée de manière mobile à glissement dans le boîtier (5), entre la surface (23) de guidage et l'autre élément (24) de guidage du boîtier (5).
EP14747005.8A 2013-08-13 2014-07-31 Dispositif de transfert de forces Active EP3011575B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013216018.6A DE102013216018B4 (de) 2013-08-13 2013-08-13 Vorrichtung zur Übertragung von Kräften
PCT/EP2014/066454 WO2015022194A1 (fr) 2013-08-13 2014-07-31 Dispositif de transfert de forces

Publications (2)

Publication Number Publication Date
EP3011575A1 EP3011575A1 (fr) 2016-04-27
EP3011575B1 true EP3011575B1 (fr) 2017-08-30

Family

ID=51263390

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14747005.8A Active EP3011575B1 (fr) 2013-08-13 2014-07-31 Dispositif de transfert de forces

Country Status (8)

Country Link
US (1) US10043623B2 (fr)
EP (1) EP3011575B1 (fr)
JP (1) JP2016528700A (fr)
KR (1) KR101895135B1 (fr)
CN (1) CN105408977B (fr)
DE (1) DE102013216018B4 (fr)
WO (1) WO2015022194A1 (fr)
ZA (1) ZA201600447B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106098471B (zh) * 2016-08-21 2018-06-05 沈通科技有限公司 一种高压真空断路器
DE102020132655A1 (de) * 2020-12-08 2022-06-09 Te Connectivity Germany Gmbh Kontaktbrücke für ein elektrisches Schaltelement und elektrisches Schaltelement

Family Cites Families (20)

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Publication number Priority date Publication date Assignee Title
US1672365A (en) * 1921-07-25 1928-06-05 Condit Electrical Mfg Corp Electric switch
US3614353A (en) * 1968-05-30 1971-10-19 Tokyo Shibaura Electric Co Switching device having electro-magnetic means for increasing effective contact pressure
US3665350A (en) * 1971-04-19 1972-05-23 Gen Electric Electric circuit breaker with electromagnetically assisted closing means
JPS51134878A (en) * 1975-05-19 1976-11-22 Mitsubishi Electric Corp Movable electrode for vacuum valve circuit breaker
US4032870A (en) * 1975-09-15 1977-06-28 General Electric Company Electric circuit breaker with electromagnetic-assist means for opposing magnetic contact-separating forces
US4153827A (en) * 1976-01-26 1979-05-08 Merlin Gerin Magnetic blow-out arc extinguishing device
JPS5826605B2 (ja) 1976-10-29 1983-06-03 三菱電機株式会社 真空しや断器
US4247745A (en) * 1978-09-13 1981-01-27 Westinghouse Electric Corp. Vacuum-type contactor assembly
JPH0760624B2 (ja) 1989-02-15 1995-06-28 株式会社日立製作所 真空遮断器
DE4210716A1 (de) * 1992-03-27 1993-09-30 Siemens Ag Mehrpoliger Vakuumschalter mit einer jede Vakuumröhre umgebenden Isolieranordnung
DE4210714A1 (de) 1992-03-27 1993-09-30 Siemens Ag Vakuumschalter mit einer Stromschleifenanordnung
US5486662A (en) * 1993-07-16 1996-01-23 Eaton Corporation Flexible connector for a circuit interrupter
GB9614169D0 (en) * 1996-07-05 1996-09-04 Whipp & Bourne Ltd Electrical circuit breakers
CN2356418Y (zh) 1997-11-11 1999-12-29 Lg产电株式会社 断路器的限流装置
IT1313278B1 (it) 1999-07-30 2002-07-17 Abb Ricerca Spa Interruttore di potenza per bassa tensione.
FR2807203B1 (fr) * 2000-03-31 2002-05-24 Schneider Electric Ind Sa Module de coupure comportant une ampoule a vide et des moyens de fixation, et appareillage electrique de coupure comportant un tel module
US6753493B2 (en) * 2001-06-01 2004-06-22 Hubbell Incorporated Electrical circuit interrupting device
JP4667029B2 (ja) 2004-12-09 2011-04-06 三菱電機株式会社 開閉装置
DE102008049789B4 (de) 2007-10-12 2016-10-20 Siemens Aktiengesellschaft Kontaktvorrichtung mit unterschiedlichen Kontaktkräften in unterschiedlichen Betriebszuständen
DE102012216974B4 (de) 2012-09-21 2020-03-05 Siemens Aktiengesellschaft Vorrichtung zur Übertragung von Kräften

Non-Patent Citations (1)

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Title
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Also Published As

Publication number Publication date
ZA201600447B (en) 2017-04-26
EP3011575A1 (fr) 2016-04-27
US10043623B2 (en) 2018-08-07
CN105408977A (zh) 2016-03-16
KR20160030557A (ko) 2016-03-18
US20160181037A1 (en) 2016-06-23
DE102013216018B4 (de) 2021-06-02
KR101895135B1 (ko) 2018-10-04
CN105408977B (zh) 2018-07-06
DE102013216018A1 (de) 2015-02-19
WO2015022194A1 (fr) 2015-02-19
JP2016528700A (ja) 2016-09-15

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