EP0444283A1 - Disjoncteur de protection de canalisation avec un appareil déclencheur - Google Patents

Disjoncteur de protection de canalisation avec un appareil déclencheur Download PDF

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Publication number
EP0444283A1
EP0444283A1 EP90124549A EP90124549A EP0444283A1 EP 0444283 A1 EP0444283 A1 EP 0444283A1 EP 90124549 A EP90124549 A EP 90124549A EP 90124549 A EP90124549 A EP 90124549A EP 0444283 A1 EP0444283 A1 EP 0444283A1
Authority
EP
European Patent Office
Prior art keywords
magnetic yoke
switch according
arc
contact point
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
EP90124549A
Other languages
German (de)
English (en)
Other versions
EP0444283B1 (fr
Inventor
Werner Dipl.-Ing. Ostermann
Jürgen Dipl.-Ing. Orzechowski
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.)
AEG Niederspannungstechnik GmbH and Co KG
Original Assignee
Licentia Patent Verwaltungs 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 Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
Publication of EP0444283A1 publication Critical patent/EP0444283A1/fr
Application granted granted Critical
Publication of EP0444283B1 publication Critical patent/EP0444283B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/18—Means for extinguishing or suppressing arc
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H2071/249—Electromagnetic mechanisms with part of the magnetic circuit being in the normal current path in the circuit breaker, e.g. yoke, fixed contact and arc-runner are made out of one single conductive element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/121—Protection of release mechanisms
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2454—Electromagnetic mechanisms characterised by the magnetic circuit or active magnetic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures
    • 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
    • H01H9/46—Means for extinguishing or preventing arc between current-carrying parts using arcing horns

Definitions

  • the invention relates to a circuit breaker with an electromagnetic trigger element designed as an impact armature system, the excitation winding of which is enclosed by a frame-shaped magnetic yoke formed from a ferromagnetic sheet-metal strip, which in turn has a one-piece horn-like fixed contact point which merges into an arc-running rail and is located below the trigger element Quenching chamber with quenching plates arranged parallel to the impact anchor system and with a movable contact device oriented perpendicular to it, to the side of the release element and in front of the front side of the quenching plate package.
  • Such a switching device is known from DE 30 31 549 A1.
  • a frame-shaped closed magnetic yoke completely surrounds the excitation winding of the tripping element.
  • the fixed contact piece running out into an arc guide plate is connected to the magnetic yoke in that these parts are punched and folded in one piece from a refined steel sheet strip.
  • the legs overlap on the side of the fixed contact piece and are additionally riveted.
  • a disadvantage of this magnetic release is the considerable additional expenditure in terms of quantity of relatively expensive material and an additional mechanical work process.
  • the invention has for its object to simplify the construction of the magnetic yoke of the tripping device in a line circuit breaker of the type mentioned and to save material and at the same time to give it an optimal design in the adjacent arcing chamber and contact area of the switch for the arc to run off the contact point quickly can and commutation of the arc on the fixed contact side can be excluded.
  • the invention is advantageous in that an inexpensive arc quenching device can be produced with a low cost of materials, which also ensures a high running speed of the switching arc in the prechamber area.
  • the arc is driven safely and quickly, particularly in the critical area in front of the quenching plates by the fixed contact piece and the arc guide rail, both of which are predominantly made of ferromagnetic material. Due to the special arrangement, the magnetic flux of the short-circuit current surrounding the arc guide rails is increased in the area of the prechamber space, and the very effective blowing that arises here ensures rapid arc discharge from the contact point. Furthermore, the proposed measures significantly reduce the tendency to re-ignition of the switch.
  • the narrow circuit breaker shown has a housing (1) formed from two housing shells (1a, 1b) and held together by a plurality of rivet bolts (1c), which accommodates a switching mechanism (2), which is only indicated, in the upper part.
  • An electromagnetic release element (3) is arranged in the central area of the housing, while the base area located underneath is predominantly designed as an extinguishing chamber (4).
  • This is largely filled with quenching plates (4a) arranged parallel to the bottom surface of the switch, which are connected to one another in a packet-like manner at a distance, and is delimited on its narrow sides by arc guiding rails (5f) or (6) flanking the quenching plates on both sides.
  • the upper arc runner (5f) is part of a magnetic yoke (5) which surrounds an excitation winding (3a) in a frame shape as an iron yoke. Iron cores of an impact anchor system are in turn within the field winding (3b) arranged, which in the event of a short-circuit current gives off the unlatching stroke of the electromagnetic release member on the plunger (3c).
  • the magnetic yoke (5) is made in one piece from a sheet metal strip and has a U-leg area with a free leg (5a), a connecting yoke (5b) and a contact-side leg (5c) above and on both end faces of the excitation winding (3a) whose leg end is seamlessly formed an ear-shaped protruding fixed contact point (5d) with a contact horn (5e) bent backwards, which ultimately merges into the upper arc running rail (5f).
  • the sections of the magnetic yoke (5a, 5b, 5c, 5f) form an almost iron-closed rectangular frame around the field winding (3a).
  • the end of the contact-side leg (5c) in the transition to the fixed contact point (5d) and the contact horn (5c), which runs obliquely in front of the front contour of the upper quenching plates, are constricted almost flush with the corner in the transition to the arc guide rail (5f), while at the opposite corner of the frame the end of the free leg (5a) strives at right angles to the free end of the arc runner (5f), but without touching it.
  • a partition wall, not shown, in the housing between the excitation winding and the arc runner (5f) ensures that, in the event of a short-circuit current under the influence of the magnetic forces, no conductive connection between the leg (5a) and the arc runner (5f) can occur. This is essential insofar as a reversal of the current direction occurs when touching this corner of the frame and thus magnetic blowing would be impeded.
  • the excitation coil (3a) is connected on the one hand to an output terminal (7) and on the other hand to the contact-side leg (5c), preferably by a welding process, so that it lies in series with the fixed contact point (5d), which is in particular due to a soldered-on contact plate (5d ') is marked.
  • a movable contact lever (8) which is only shown schematically, works on this and is connected in series with an input terminal (10) via a flexible line (8a), a thermal release (9) and a connecting line (10a).
  • the thermal release (9) in the form of a bimetal is connected in a manner not shown to one end of the arc guide rail (6) and is adjustable there.
  • the trigger member (3) in the area below the excitation winding (3a) is provided with a separating cut or longitudinal slot (5g) in the magnetic yoke, so that in addition to the opposite legs (5a, 5b , 5c) of the yoke, which is kept narrower and only in the switch center plane, there is a longitudinal web (5h) on one side, which is angled directly at the end of the contact-side leg (5c) in the direction of the free leg (5a), leaving out the contact point area and is directly at the end.
  • the actual arc runner (5f) is guided in parallel with the longitudinal web (5h) at a distance approximately parallel and can be provided with a cross-profiled bead as shown in FIGS. 1 and 2 in addition to the smooth surface shown.
  • a further modification of the subject matter of the invention, in particular at high currents, is the use of a composite material as the starting material for the Magnetic yoke (5).
  • the sheet metal strip made of an iron alloy is provided with a cladding (5 ') made of a highly conductive material, preferably copper, which can have a maximum of half the strip thickness (FIG. 5).
  • the plated outside of the sheet metal strip with a total thickness of about 1 mm is turned away from the excitation winding (3a) and is thus in a highly conductive connection with the contact point (5d) or (5d ').
  • a connecting lug (5i) is preferably bent inwards on the contact-side leg of the magnet yoke, on which one end of the winding has contact contact with the clad material side. This results in a low resistance between the field winding and the contact point, which is advantageous at higher nominal currents.
  • a similar advantageous effect results in the embodiment according to FIG. 6, in which a bridge part (5k) made of a highly conductive material is arranged between the field winding and the contact point.
  • the bridge part follows the outer contour of the magnetic yoke in the ear-shaped projecting contact area (5d) and lies there tightly on the outside, one end being connected to the excitation winding (3a), while the other end can be designed directly as a contact point.
  • This can be achieved, for example, by applying silver (5k ') to the copper base material of the bridge part, so that an additional contact plate is not required.
  • the function of the separate iron-closed magnetic yoke in the sense described at the outset remains fully intact even with this version.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Push-Button Switches (AREA)
  • Burglar Alarm Systems (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Electromagnets (AREA)
  • Toys (AREA)
  • Electronic Switches (AREA)
EP90124549A 1990-02-24 1990-12-18 Disjoncteur de protection de canalisation avec un appareil déclencheur Expired - Lifetime EP0444283B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9002197U 1990-02-24
DE9002197U DE9002197U1 (de) 1990-02-24 1990-02-24 Leitungsschutzschalter mit einem elektromagnetischen Auslöseorgan

Publications (2)

Publication Number Publication Date
EP0444283A1 true EP0444283A1 (fr) 1991-09-04
EP0444283B1 EP0444283B1 (fr) 1994-10-26

Family

ID=6851348

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90124549A Expired - Lifetime EP0444283B1 (fr) 1990-02-24 1990-12-18 Disjoncteur de protection de canalisation avec un appareil déclencheur

Country Status (7)

Country Link
EP (1) EP0444283B1 (fr)
AT (1) ATE113409T1 (fr)
DE (2) DE9002197U1 (fr)
ES (1) ES2063236T3 (fr)
HK (1) HK34795A (fr)
NO (1) NO180607C (fr)
PL (1) PL164963B1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0616350A1 (fr) * 1993-03-19 1994-09-21 CMC Carl Maier + Cie AG Disjoncteur de protection de ligne
GB2286486A (en) * 1994-02-10 1995-08-16 Matsushita Electric Works Ltd Circuit breaker
EP1134767A1 (fr) * 2000-03-14 2001-09-19 Schneider Electric Industries SA Dispositif de déclenchement magnétique notamment pour disjoncteur, et appareil de protection électrique comportant un tel dispositif
WO2002075764A1 (fr) * 2001-03-20 2002-09-26 Moeller Gebäudeautomation KG Culasse a support de contact fixe monobloc
WO2002099829A1 (fr) * 2001-06-01 2002-12-12 Siemens Aktiengesellschaft Culasse d'aimant conçue pour un interrupteur electromagnetique
WO2007087761A1 (fr) * 2006-01-31 2007-08-09 Siemens Aktiengesellschaft Interrupteur de puissance
EP1388154B1 (fr) * 2001-05-15 2011-01-19 Eaton Corporation Dispositif de commutation electrique comprenant une spire conductrice munie d'une arete saillante allongee
CN102113079A (zh) * 2008-07-31 2011-06-29 伊顿有限公司 开关器件
CN104241055A (zh) * 2013-06-05 2014-12-24 松下电器产业株式会社 断路器
CN105513860A (zh) * 2016-01-18 2016-04-20 刘天保 一种用于高压电力***的电子电磁式智能开关

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4309197A1 (de) * 1993-03-22 1994-09-29 Maier & Cie C Leitungsschutzschalter
CN106024541B (zh) * 2016-07-23 2018-11-20 上海路美思电气有限公司 一种智能漏电保护器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1966598A1 (de) * 1969-01-31 1973-07-12 Westermeyer Joseph Dipl Ing Elektrischer kleinselbstschalter mit schaltmechanik und lichtbogenkammer
DE2418862A1 (de) * 1974-04-19 1975-10-30 Licentia Gmbh Magnetisches ausloesesystem fuer leitungsschutzschalter
EP0009156A1 (fr) * 1978-09-21 1980-04-02 Licentia Patent-Verwaltungs-GmbH Disjoncteur de ligne comportant une boucle de soufflage additionnelle
DE3031549A1 (de) * 1980-08-21 1982-04-01 Heinrich Kopp Gmbh & Co Kg, 8756 Kahl Kontakt- und loescheinrichtung fuer elektrische schaltgeraete
DE3339399A1 (de) * 1983-10-29 1985-05-09 Sursum Elektrizitätsgesellschaft Leyhausen GmbH & Co, 8500 Nürnberg Selbstschalter mit lichtbogenblasfeld
DD230734A3 (de) * 1984-02-01 1985-12-11 Elektroinstallation Annaberg V Leitungsschutzschalter mit magnetausloeser

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6913744U (de) * 1969-04-05 1969-07-24 Bbc Brown Boveri & Cie Magnetischer ausloeser fuer installationsselbstschalter
CH616271A5 (fr) * 1977-06-27 1980-03-14 Weber Ag Fab Elektro
DE3130944A1 (de) * 1981-08-05 1983-02-17 Heinrich Kopp Gmbh & Co Kg, 8756 Kahl Kontakt- und loescheinrichtung fuer elektrische schaltgeraete
FR2490002A1 (fr) * 1980-09-09 1982-03-12 Merlin Gerin Disjoncteur miniature a contacts d'arc
DE8527361U1 (de) * 1985-09-25 1986-01-09 Lindner Gmbh, Fabrik Elektrischer Lampen Und Apparate, 8600 Bamberg Kurzschlußauslöseorgan
US4656446A (en) * 1985-12-17 1987-04-07 Westinghouse Electric Corp. Current limiting circuit breaker with series double break contact system per pole
DE3619239A1 (de) * 1986-06-07 1987-12-10 Kloeckner Moeller Elektrizit Schnellausloeser fuer leitungsschutzschalter
DE3619240A1 (de) * 1986-06-07 1987-12-10 Kloeckner Moeller Elektrizit Leitungsschutzschalter mit einer eine blaseinrichtung bildenden kontaktanordnung

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1966598A1 (de) * 1969-01-31 1973-07-12 Westermeyer Joseph Dipl Ing Elektrischer kleinselbstschalter mit schaltmechanik und lichtbogenkammer
DE2418862A1 (de) * 1974-04-19 1975-10-30 Licentia Gmbh Magnetisches ausloesesystem fuer leitungsschutzschalter
EP0009156A1 (fr) * 1978-09-21 1980-04-02 Licentia Patent-Verwaltungs-GmbH Disjoncteur de ligne comportant une boucle de soufflage additionnelle
DE3031549A1 (de) * 1980-08-21 1982-04-01 Heinrich Kopp Gmbh & Co Kg, 8756 Kahl Kontakt- und loescheinrichtung fuer elektrische schaltgeraete
DE3339399A1 (de) * 1983-10-29 1985-05-09 Sursum Elektrizitätsgesellschaft Leyhausen GmbH & Co, 8500 Nürnberg Selbstschalter mit lichtbogenblasfeld
DD230734A3 (de) * 1984-02-01 1985-12-11 Elektroinstallation Annaberg V Leitungsschutzschalter mit magnetausloeser

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0616350A1 (fr) * 1993-03-19 1994-09-21 CMC Carl Maier + Cie AG Disjoncteur de protection de ligne
GB2286486A (en) * 1994-02-10 1995-08-16 Matsushita Electric Works Ltd Circuit breaker
GB2286486B (en) * 1994-02-10 1998-06-10 Matsushita Electric Works Ltd Circuit breaker
EP1134767A1 (fr) * 2000-03-14 2001-09-19 Schneider Electric Industries SA Dispositif de déclenchement magnétique notamment pour disjoncteur, et appareil de protection électrique comportant un tel dispositif
FR2806522A1 (fr) * 2000-03-14 2001-09-21 Schneider Electric Ind Sa Dispositif de declenchement magnetique notamment pour disjoncteur, et appareil de protection electrique comportant un tel dispositif
CZ301277B6 (cs) * 2001-03-20 2009-12-30 Moeller Gebäudeautomation KG Jho magnetického systému zkratového vypínacího zarízení
WO2002075764A1 (fr) * 2001-03-20 2002-09-26 Moeller Gebäudeautomation KG Culasse a support de contact fixe monobloc
EP1388154B1 (fr) * 2001-05-15 2011-01-19 Eaton Corporation Dispositif de commutation electrique comprenant une spire conductrice munie d'une arete saillante allongee
WO2002099829A1 (fr) * 2001-06-01 2002-12-12 Siemens Aktiengesellschaft Culasse d'aimant conçue pour un interrupteur electromagnetique
WO2007087761A1 (fr) * 2006-01-31 2007-08-09 Siemens Aktiengesellschaft Interrupteur de puissance
CN102113079A (zh) * 2008-07-31 2011-06-29 伊顿有限公司 开关器件
CN102113079B (zh) * 2008-07-31 2014-05-28 伊顿有限公司 开关器件
CN104241055A (zh) * 2013-06-05 2014-12-24 松下电器产业株式会社 断路器
CN105513860A (zh) * 2016-01-18 2016-04-20 刘天保 一种用于高压电力***的电子电磁式智能开关

Also Published As

Publication number Publication date
NO910709D0 (no) 1991-02-22
NO180607B (no) 1997-02-03
EP0444283B1 (fr) 1994-10-26
DE9002197U1 (de) 1991-06-27
PL289163A1 (en) 1991-08-26
DE59007565D1 (de) 1994-12-01
PL164963B1 (pl) 1994-10-31
ATE113409T1 (de) 1994-11-15
ES2063236T3 (es) 1995-01-01
NO910709L (no) 1991-08-26
NO180607C (no) 1997-05-14
HK34795A (en) 1995-03-17

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