EP1923897A2 - Commutateur électrique - Google Patents

Commutateur électrique Download PDF

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Publication number
EP1923897A2
EP1923897A2 EP07020783A EP07020783A EP1923897A2 EP 1923897 A2 EP1923897 A2 EP 1923897A2 EP 07020783 A EP07020783 A EP 07020783A EP 07020783 A EP07020783 A EP 07020783A EP 1923897 A2 EP1923897 A2 EP 1923897A2
Authority
EP
European Patent Office
Prior art keywords
arc
thermoplastic
cover
holding elements
radiation
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Withdrawn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
EP07020783A
Other languages
German (de)
English (en)
Other versions
EP1923897A3 (fr
Inventor
Patrick Dipl.-Ing. Claeys
Jürgen Dipl.-Ing. Hofmann
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.)
ABB AG Germany
Original Assignee
ABB Patent 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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP1923897A2 publication Critical patent/EP1923897A2/fr
Publication of EP1923897A3 publication Critical patent/EP1923897A3/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Withdrawn legal-status Critical Current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
    • H01H9/34—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
    • 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
    • H01H9/345—Mounting of arc chutes

Definitions

  • the invention relates to an electrical switching device according to the preamble of claim 1.
  • Such electrical switches are circuit breakers, motor protection switches and the like, which serve in the event of a fault, electrical lines that are overloaded with high currents (short-circuit currents) to separate from the feeding network.
  • the circuit breaker for this purpose have a contact point with a fixed and a movable contact piece, while Motorschutzschaltem often a double contact point is provided with two fixed and two movable contact pieces, which latter are attached to a contact bridge with which the two fixed contacts can be bridged.
  • a switching arc which is deleted in a designated extinguishing device.
  • the arc produced directly on switching off commutes to arcing and enters an arc splitter stack in which the arc is subdivided into shorter partial arcs, creating a high arc voltage for current limiting, so that the arc extinguishes.
  • the arc splitter plate packages generally consist of a certain number of ferromagnetic steel quenching plates, which are kept apart by an insulating holding element or by insulating holding elements.
  • pressed chip strips are used or, in the case of a complex embodiment, a 3-layer material combination of a synthetic aromatic polyamide polymer and Akadur.
  • press chip in particular the form encased with a press chip film, is the most economical design with regard to the production of the arc quenching chamber and installation in a circuit breaker or motor protection switch. Because of the inexpensive material pressboard, the material costs are correspondingly low. Since the individual components of the splitter stack are very robust, the supply and assembly of the parts can be classified as unproblematic. The quality of the device can be reproduced accordingly.
  • materials are provided which partially gasify when the arc occurs through the arc, thereby causing the arc Increased gas pressure on the arc and the entry into the arc extinguishing chamber is accelerated.
  • pressboard Since pressboard is not a gaseous material, the arc splitter stack held together by pressboard can only be used to a limited extent in terms of shutdown capacity and rated current range.
  • the plastic strip for producing a plastic plate which can be placed on one of the arc quenching plates or on several, deformed into a saber shape, which makes the production problematic.
  • the connection process between the side strip and the plastic plate is also difficult because of the labile plastic plate, the required forces can not be absorbed in the connection process. This then leads to the occasional arc splitter stacks get into final assembly with no or with insufficiently secured plates.
  • the object of the invention is to provide an electrical switching device of the type mentioned, in which the manufacture of the arc splitter stack is simplified and also mechanized.
  • the holding elements are made of a thermoplastic, which is radiantly crosslinked after assembly.
  • thermoplastics are known as such, see PTS technology, PTS marketing, radiation crosslinking, May 2002 the company PTS (plastic technology service), Hautschenmühle 3, 91587 Adelshofen. Thereafter, thermoplastic materials are crosslinked by electron beams or cobalt 60 (gamma rays) independently of the molding process, whereby the crosslinking can be adjusted by the radiation dose. In many cases, a crosslinking amplifier can also be used. Radiation crosslinking can be used to improve certain key properties, see the cited publication, page 4, point 2.
  • the thermal limits of use of low-cost standard and engineering thermoplastics for example DE, PT, PA 6, PA 6.6, TBT, are extended and the media resistance is greatly increased.
  • the electron irradiation mainly crosslinks the amorphous fractions of semicrystalline thermoplastics, which leads to a change in the molecular structure and an increase in the degree of crosslinking. This results in an increased heat resistance, improved strength and creep properties and a reduced thermal expansion. Also, the wear resistance and the stress cracking resistance are significantly increased. In addition, fiber matrix adhesion and plastic-plastic composite strength are also improved.
  • the material can no longer melt; the dimensional stability guarantees a more uniform behavior during the short-circuit shutdown and, in addition, the gas pressure is increased by the outgassing of the thermoplastic and thus also the arc voltage between the individual quenching plates.
  • thermoplastic in which the arc splitter stack initially covered with the thermoplastic and the arc quenching plates are fixed and then the thermoplastic, which optionally also an additive to increase the radiation crosslinking has been added, is crosslinked by irradiation with gamma rays or electron beams.
  • each quenching plate has a rectangular shape with a plate 12 and two projecting arms 13 and 14, which form a V-shaped slot 15 between them.
  • This slot 15 may be formed in different ways, as is also apparent from Fig. 5, for example.
  • the arc runs in the direction of arrow L in the slot, is divided in the arc splitter stack 10 in a number of quenching plates 11 corresponding number of partial arcs, which, as mentioned above, the arc voltage and thus the current limit is increased and improved.
  • each splitter plate 11 on both sides each have a recess 18, 19, at the bottom of pins 20, 21, 22 are formed, which are pressed into holes 23, 24, 25 of both sides arranged holding strips 26 and 27.
  • the pins 20, 21 and 22 project beyond the outer surface of the retaining strips 26, 27.
  • thermoplastic with radiation crosslinking It is the simplest design in the prior art pressboard strips have been used.
  • Fig. 3 shows an arc splitter stack 30, which is provided with a jacket 31, which sheath is shown unwound in Fig. 6.
  • the shell has a central portion 32 adapted to the peripheral edges of the sheets 33, this portion 32 having a recess 34 surrounding the slot 35 of the sheet 33;
  • the recess 34 has a circular extension 36, to which a parallel to the inner edges of the slot 35 extending approximately V-shaped extensions 37 connect.
  • the slot 34 is, as I said, adapted to the slot 35; in the embodiment of FIGS. 1 and 2, the slot 34 would be adapted to the slot 15 of the quenching plate 11.
  • the central region 32 or central section is where the longitudinal edges of the arc extinguishing plate 33 extend, each with a film hinge 38, 39 each having a holding portion 40, 41, in which holding portions holes 42 are provided, in the similar to the arc splitter 11th engage in the Fig. 4 to 6 pins, not shown, so that the holding portions 40, 41 held on the arc splitter stack 30 and the individual quenching plates are kept at a distance from each other.
  • the sheath 31 is made of thermoplastic, which is radiation crosslinked after installation.
  • a sheath 70 (shown in unwinding in FIG. 9) which has a central portion 71 whose circumferential contours correspond to the rear area of the arc splitter stack.
  • the central portion 71 has exhaust ports or slots 72, 73, and serves to cover the rear side of the arc splitter stack.
  • film hinges 74, 75 holding portions 76, 77 are formed, which correspond to the holding portions 40, 41. These also have holes 78, engage in the corresponding pin on the quenching plates.
  • FIG. 10 shows a side view and FIG. 11 shows the unwound sheathing for an arc splitter stack 100 with a central plate 101, which corresponds to the central region 32, the embodiment of FIG. 3.
  • a respective film hinge 102, 103 holding sections 104, 105 are connected, which correspond to the holding elements or retaining strips 26, 27 and are provided with holes 106 so that they can be connected to the pins 107, 108 on the quenching plates ,
  • the fixing of the quenching plates 109 takes place by means of the holding sections 104 and 105; the plate 101 is arranged at a distance from the upper splitter plate 109, which corresponds to the distance between the individual arc quenching plates from each other.
  • a cover 120 which has a central portion 121, formed on the two parallel edges 122, 123 via film hinges 124, 125 the holding strips 104 and 105 corresponding holding strips 126 and 127 which, as seen in Fig. 12, are disposed on the side edges of the quenching plates 128 in a similar manner as in Figs. 1, 2; and Fig. 11 is shown.
  • a cover 130 (exhaust mask) is integrally formed via a film hinge 129 having slots 131 which corresponds to the slots 72, 73 and which covers the back of the arc splitter stack.
  • FIG. 16 shows a further embodiment of a casing in unwound state.
  • This jacket 160 has a central portion 161 corresponding to the portion 101 of FIG. 11.
  • On the two longitudinal side edges 162, 163 holding sections 164 and 165 are integrally formed on each of a film hinge, which correspond to the holding portions 40, 41.
  • a cover 167 is integrally formed via a film hinge 168. As shown in Figs. 14 and 15, the holding portions 164 and 165 are located on both sides of the splitter stack, the rear cover portion 167 covering the rear side of the arc splitter stack.
  • the cover portion 167 is provided with slits 169, 170, like the cover portion 130 of FIG. 13 or 71 of FIG. 9.
  • Fig. 17 shows a further embodiment of a casing, also in the unwound state.
  • the casing 170 has a central portion 171, which has a slot 172 and in this respect corresponds to the portion 101, 161.
  • holding elements 175 and 176 are integrally formed on the side edges running in the direction of the arc running which correspond to the holding strips 104, 105 and the holding strips 26, 27, respectively.
  • a film hinge 178 At the perpendicular to the two longitudinal edges extending rear edge 177 is followed by a film hinge 178, via which a cover portion 179 containing slots 180, connects.
  • This cover section corresponds to the cover section 167 of FIG. 16 or 130 of FIG. 13.
  • thermoplastic resin is subjected to beam crosslinking as mentioned in the introduction.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)
EP07020783A 2006-11-16 2007-10-24 Commutateur électrique Withdrawn EP1923897A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102006054030A DE102006054030B4 (de) 2006-11-16 2006-11-16 Elektrisches Schaltgerät

Publications (2)

Publication Number Publication Date
EP1923897A2 true EP1923897A2 (fr) 2008-05-21
EP1923897A3 EP1923897A3 (fr) 2009-01-07

Family

ID=39055726

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07020783A Withdrawn EP1923897A3 (fr) 2006-11-16 2007-10-24 Commutateur électrique

Country Status (5)

Country Link
US (1) US20080135525A1 (fr)
EP (1) EP1923897A3 (fr)
CN (1) CN101183617A (fr)
CA (1) CA2610679A1 (fr)
DE (1) DE102006054030B4 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2214189A1 (fr) * 2009-02-02 2010-08-04 Siemens Aktiengesellschaft Commutateur, notamment commutateur de puissance doté d'un dispositif de tôle d'effacement bi-fonctionnel
WO2011113721A3 (fr) * 2010-03-15 2011-11-10 Osram Opto Semiconductors Gmbh Composant optoélectronique et son procédé de fabrication
EP2405453A1 (fr) * 2010-07-06 2012-01-11 LSIS Co., Ltd. Mécanisme d'extinction d'ARC pour disjoncteur à boîtier moulé
WO2016078875A1 (fr) * 2014-11-18 2016-05-26 Eaton Industries (Austria) Gmbh Dispositif de commutation

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101412593B1 (ko) * 2013-05-14 2014-06-26 엘에스산전 주식회사 배선용 차단기 아크 소호장치
FR3005781B1 (fr) * 2013-05-17 2016-09-23 Schneider Electric Ind Sas Chambre de coupure pour un appareil de protection electrique et appareil de protection electrique la comportant.
CN103794424B (zh) * 2014-03-02 2016-05-11 西安交通大学 一种直流断路器
CN103871795A (zh) * 2014-03-19 2014-06-18 云南追梦科技有限公司 断路器灭弧室及具有该断路器灭弧室的断路器
CN109314002B (zh) * 2017-06-17 2019-12-31 泉州睿郎机电技术有限公司 灭弧栅片和包含该灭弧栅片的灭弧装置及包含该灭弧装置的开关
KR102054332B1 (ko) * 2018-06-26 2019-12-10 엘에스산전 주식회사 배선용 차단기의 아크 소호실 베이스
EP3660876B1 (fr) * 2018-11-29 2022-05-11 ABB Schweiz AG Plaque de séparation, chambre d'extinction d'arc et dispositif de commutation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1498826A (en) * 1974-03-02 1978-01-25 Bbc Brown Boveri & Cie Assembly of arc-quenching laminations
EP0663679A2 (fr) * 1994-01-13 1995-07-19 Schurter AG Fusible électrique et méthode de sa fabrication
US20050263492A1 (en) * 2004-05-28 2005-12-01 Siemens Energy & Automation, Inc. Molded arc chute
WO2007031174A1 (fr) * 2005-09-17 2007-03-22 Abb Ag Thermoplastiques reticules par irradiation contenus dans un interrupteur d'installation electrique
DE102007055667A1 (de) * 2006-11-21 2008-05-29 Fuji Electric Holdings Co., Ltd. Lichtbogenlösch-Harzformkörper und Trennschalter unter Verwendung des Formkörpers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9211129U1 (fr) * 1991-09-02 1992-10-29 Siemens Ag, 8000 Muenchen, De
US5247142A (en) * 1992-05-22 1993-09-21 Westinghouse Electric Corp. Circuit interrupter ARC chute side walls coated with high temperature refractory material
IT1314358B1 (it) * 1999-12-31 2002-12-09 Abb Ricerca Spa Camera d'arco per interruttori di bassa tensione
DE10312820B4 (de) * 2003-03-22 2012-04-19 Abb Ag Lichtbogenlöschblechanordnung für einen elektrischen Schalter, insbesondere einen elektrischen Leitungsschutzschalter
JP4655094B2 (ja) * 2008-02-08 2011-03-23 富士電機機器制御株式会社 消弧用樹脂加工品、及びそれを用いた回路遮断器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1498826A (en) * 1974-03-02 1978-01-25 Bbc Brown Boveri & Cie Assembly of arc-quenching laminations
EP0663679A2 (fr) * 1994-01-13 1995-07-19 Schurter AG Fusible électrique et méthode de sa fabrication
US20050263492A1 (en) * 2004-05-28 2005-12-01 Siemens Energy & Automation, Inc. Molded arc chute
WO2007031174A1 (fr) * 2005-09-17 2007-03-22 Abb Ag Thermoplastiques reticules par irradiation contenus dans un interrupteur d'installation electrique
DE102007055667A1 (de) * 2006-11-21 2008-05-29 Fuji Electric Holdings Co., Ltd. Lichtbogenlösch-Harzformkörper und Trennschalter unter Verwendung des Formkörpers

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2214189A1 (fr) * 2009-02-02 2010-08-04 Siemens Aktiengesellschaft Commutateur, notamment commutateur de puissance doté d'un dispositif de tôle d'effacement bi-fonctionnel
WO2011113721A3 (fr) * 2010-03-15 2011-11-10 Osram Opto Semiconductors Gmbh Composant optoélectronique et son procédé de fabrication
US9121585B2 (en) 2010-03-15 2015-09-01 Osram Opto Semiconductors Gmbh Optoelectronic component and method for the production thereof
EP2405453A1 (fr) * 2010-07-06 2012-01-11 LSIS Co., Ltd. Mécanisme d'extinction d'ARC pour disjoncteur à boîtier moulé
US8809720B2 (en) 2010-07-06 2014-08-19 Lsis Co., Ltd. Arc extinguishing mechanism for mold cased circuit breaker
WO2016078875A1 (fr) * 2014-11-18 2016-05-26 Eaton Industries (Austria) Gmbh Dispositif de commutation

Also Published As

Publication number Publication date
EP1923897A3 (fr) 2009-01-07
US20080135525A1 (en) 2008-06-12
CN101183617A (zh) 2008-05-21
CA2610679A1 (fr) 2008-05-16
DE102006054030B4 (de) 2010-06-17
DE102006054030A1 (de) 2008-05-29

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