EP0143982A1 - Disjoncteur avec champ de soufflage de l'arc - Google Patents

Disjoncteur avec champ de soufflage de l'arc Download PDF

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Publication number
EP0143982A1
EP0143982A1 EP84112941A EP84112941A EP0143982A1 EP 0143982 A1 EP0143982 A1 EP 0143982A1 EP 84112941 A EP84112941 A EP 84112941A EP 84112941 A EP84112941 A EP 84112941A EP 0143982 A1 EP0143982 A1 EP 0143982A1
Authority
EP
European Patent Office
Prior art keywords
contact
strip
sheet metal
contact piece
piece
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
EP84112941A
Other languages
German (de)
English (en)
Other versions
EP0143982B1 (fr
Inventor
Joseph Westermeyer
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.)
Cessione abl Sursum Bayerische Elektrozubehor GmbH
Original Assignee
SURSUM ELEKTGES LEYHAUSEN
Sursum Elektrizitatsgesellschaft Leyhausen & Co 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 SURSUM ELEKTGES LEYHAUSEN, Sursum Elektrizitatsgesellschaft Leyhausen & Co GmbH filed Critical SURSUM ELEKTGES LEYHAUSEN
Publication of EP0143982A1 publication Critical patent/EP0143982A1/fr
Application granted granted Critical
Publication of EP0143982B1 publication Critical patent/EP0143982B1/fr
Expired 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
    • H01H9/44—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
    • 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

Definitions

  • the invention relates to a self-switch with an arcing field, in which a rotatably mounted switching arm carries a movable contact piece, which is assigned to a fixed contact piece, which is provided on the cross piece of a U-shaped, loop-forming contact strip which is connected at one end to an electrical circuit and the other end is free, forms a deflecting horn and is assigned to a group of deion plates, to which at least one arc guide plate leads.
  • the contact strip is formed from a single sheet.
  • the curved contact strip is used to conduct arcs, which occur in the event of short circuits between the contact pieces, to the deionized sheets.
  • the derivation of the short-circuit arcs is often unsatisfactory in this known small circuit breaker.
  • An important requirement placed on a miniature circuit breaker is a high short-circuit breaking capacity.
  • the contacts in these switches are small and low in mass, it is important that when the contacts are opened the arc migrates very quickly away from the contact pieces onto the arc guide plates.
  • the invention provides a self-switch, which is characterized in that a ferromagnetic sheet metal strip is applied to the side of the contact strip and / or the switching arm facing away from the contact piece.
  • blower plate is only assigned to the fixed contact piece.
  • the movable contact piece is also provided with a blower plate.
  • the firm contact is more advantageous because the blower bracket simply needs to be put in.
  • the blower plate should be firmly connected to the contact on the movable contact. be, which would also affect the opening speed due to the increased mass.
  • the inserted sheet metal strip extends over the width of the bent contact strip and tapers in width with it towards the free end. This design results in optimal conditions for arc discharge.
  • the idea of the invention can be used particularly advantageously in an arrangement according to DE-PS 190 473 or DE-PS 19 66 598, where the carrier of the fixed contact piece is the back plate of the release magnet is used because here firm contact and blow plate can be designed in a manner that advantageously influences the overall process.
  • the carrier of the fixed contact piece is the back plate of the release magnet is used because here firm contact and blow plate can be designed in a manner that advantageously influences the overall process.
  • iron plate rolled with copper on one side can also be used.
  • the circuit breaker according to the drawing has a narrow housing, which consists of a box 1 and a lid, not shown in FIG. 1, placed thereon.
  • the side wall of the box 1 has three eyes 2 distributed, which are provided with holes, which coincide with holes in the lid and through which rivets, not shown, which hold the housing together.
  • the housing has barbs 3 facing one another on the rear side, one of which is mounted in a spring-loaded manner and which are a device for attaching the housing to rails.
  • the housing is equipped with a screw terminal 4 on an upper and a lower transverse side, to the Lei lines for the supply and discharge of electricity can be connected.
  • the upper screw terminal 4 sits on one.
  • Carrier piece 4 ' which protrudes into the housing and carries a bimetallic release 5. This is connected via a metallic wire 6 to a switching arm 7, which forms a movable contact piece 8 which interacts with a fixed contact piece 9.
  • the fixed contact piece is connected to a coil of an impact anchor trigger 10, which has a spring-loaded plunger. At the other end, the coil is connected to the lower screw terminal 4 via a metallic wire 11.
  • the shift arm 7 is rotatably mounted about an axis 12 and carries a three-armed locking lever 14 rotatably on its arm facing the front 13.
  • the bimetal trigger 5 acts on one arm of the locking lever 14 by means of an adjustable grub screw.
  • the plunger of the impact anchor trigger 10 acts on the second arm.
  • the third arm of the locking lever 14 interacts with an arm of a pawl 15 which is rotatably mounted about an axis 16 at the front end of the switching arm 7.
  • a joint piece 17 is articulated, which is articulated at the other end to an arm of a handle lever 18, which is rotatably mounted and the handle piece of which projects through an opening in the side wall on the front side 13.
  • the handle lever 18 is acted upon by a wire spring 19, which strives to move the handle lever into position bring with the handle placed upwards, which corresponds to the open state of the switch contact.
  • a tension spring 20 also acts on the switching arm 7.
  • the stationary Contact piece-3 is part of a contact strip 25, which is mechanically fixed to the striker anchor trigger 10 and is electrically connected to the coil.
  • the contact strip 25 has the shape of a square U, one leg of which begins at the end face of the anchor trigger 10, the corner formed by this leg and the cross piece forms the contact piece 9 and the second leg after the second corner with the free end of the Front edges of the deion plates 22 ends.
  • a sheet metal strip 26 is inserted into the bent contact strip 25 and runs over its entire length in accordance with the contact strip.
  • the thickness of the inserted metal strip is noticeably less than that of the contact strip; There is no firm, intimate, flat connection between the bent contact strip and the inserted sheet metal strip.
  • the contact strip 25 and the sheet metal strip 26 extend in width between two kerami rule insulating washers 27, of which only the one lying at the bottom of the box 1 is shown in FIG. These two insulating disks 27 delimit the part of the arc chamber 21 that is not occupied by the group of deion sheets 22.
  • a ferromagnetic sheet metal strip 26 ' is indicated by dashed lines on the switching arm 7.

Landscapes

  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Breakers (AREA)
EP84112941A 1983-10-29 1984-10-26 Disjoncteur avec champ de soufflage de l'arc Expired EP0143982B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833339399 DE3339399A1 (de) 1983-10-29 1983-10-29 Selbstschalter mit lichtbogenblasfeld
DE3339399 1983-10-29

Publications (2)

Publication Number Publication Date
EP0143982A1 true EP0143982A1 (fr) 1985-06-12
EP0143982B1 EP0143982B1 (fr) 1987-05-27

Family

ID=6213120

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84112941A Expired EP0143982B1 (fr) 1983-10-29 1984-10-26 Disjoncteur avec champ de soufflage de l'arc

Country Status (5)

Country Link
US (1) US4614928A (fr)
EP (1) EP0143982B1 (fr)
AU (1) AU570739B2 (fr)
CA (1) CA1227826A (fr)
DE (1) DE3339399A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0251160A2 (fr) * 1986-06-27 1988-01-07 Asea Brown Boveri Aktiengesellschaft Dispositif d'extinction pour disjoncteurs électriques
EP0557620A1 (fr) * 1991-12-23 1993-09-01 Koninklijke Philips Electronics N.V. Interrupteur à soufflage magnétique
EP0557621A1 (fr) * 1991-12-23 1993-09-01 Koninklijke Philips Electronics N.V. Disjoncteur
EP0577586A1 (fr) * 1992-06-29 1994-01-05 Felten & Guilleaume Austria Ag Interrupteur automatique
TR27123A (tr) * 1993-07-21 1994-11-09 Felten & Guilleaume Ag Oester Kontak köprüsüne, tespit mandali mesnedine, tepit mandalina sahip otomatik salter.

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56162436A (en) * 1980-05-20 1981-12-14 Matsushita Electric Works Ltd Circuit breaker
DE3339400A1 (de) * 1983-10-29 1985-05-09 Sursum Elektrizitätsgesellschaft Leyhausen GmbH & Co, 8500 Nürnberg Selbstschalter mit schlaganker-ausloeser
DD253323A1 (de) * 1986-10-06 1988-01-13 Hermsdorf Keramik Veb Leitungsschutzschalter
US4968863A (en) * 1989-06-29 1990-11-06 Square D Company Unitary breaker assembly for a circuit breaker
DE9002197U1 (de) * 1990-02-24 1991-06-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Leitungsschutzschalter mit einem elektromagnetischen Auslöseorgan
DE102005041231B4 (de) * 2005-08-31 2009-11-26 Abb Ag Elektrisches Schaltgerät
DE102005041232B4 (de) * 2005-08-31 2009-11-26 Abb Ag Elektrisches Schaltgerät
AT512262B1 (de) * 2011-12-09 2016-08-15 Eaton Ind Austria Gmbh Verfahren zum justieren einer auslöseeinheit für einen schutzschalter
US10650993B1 (en) * 2019-03-19 2020-05-12 Siemens Industry, Inc. Circuit breaker with enhanced arc extinguishing chamber

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1232644B (de) * 1961-03-10 1967-01-19 Licentia Gmbh Schaltgeraet mit einer eine Loeschblechanordnung enthaltenden Lichtbogenkammer
DE1904731A1 (de) * 1969-01-31 1970-08-13 Westermeyer Dipl Ing Joseph Elektrischer Kleinselbstschalter
FR2154628A1 (fr) * 1971-09-30 1973-05-11 Maier & Cie C
DE1966598A1 (de) * 1969-01-31 1973-07-12 Westermeyer Joseph Dipl Ing Elektrischer kleinselbstschalter mit schaltmechanik und lichtbogenkammer
DE2848589A1 (de) * 1978-11-09 1980-05-22 Licentia Gmbh Leitungsschutzschalter mit einer eine blasschleife bildenden kontaktanordnung
GB2063566A (en) * 1979-11-13 1981-06-03 Garrell Alsina Sa Automatic circuit breaker
DE3226820A1 (de) * 1981-08-13 1983-07-14 Kombinat Veb Keramische Werke Hermsdorf, Ddr 6530 Hermsdorf Leitungsschutzschalter in schmalbauweise

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2343323A (en) * 1942-08-11 1944-03-07 Westinghouse Electric & Mfg Co Electric switch
GB1031971A (en) * 1964-03-13 1966-06-02 Square D Co Improvements in or relating to electric circuit breakers
DE1463681B2 (de) * 1964-05-30 1970-08-13 Stotz-Kontakt GmbH, 6800 Mannheim-Käfertal Selbstschalter, insbesondere Leitungsschutzschalter
FR2204872B1 (fr) * 1972-10-30 1976-08-20 Legrand Sa
DE7508649U (de) * 1974-05-14 1975-08-28 Kopp H Hochleistungs-Selbstschalter
CH614069A5 (fr) * 1977-03-31 1979-10-31 Weber Ag Fab Elektro
DE2813431A1 (de) * 1978-03-29 1979-10-04 Bbc Brown Boveri & Cie Elektrischer installationsschalter
US4223288A (en) * 1979-01-15 1980-09-16 Gould Inc. Manually operable and shunt controllable circuit breaker
US4301342A (en) * 1980-06-23 1981-11-17 General Electric Company Circuit breaker condition indicator apparatus
DE3030429A1 (de) * 1980-08-12 1982-09-30 Brown, Boveri & Cie Ag, 6800 Mannheim Lichtbogenloeschkammer

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1232644B (de) * 1961-03-10 1967-01-19 Licentia Gmbh Schaltgeraet mit einer eine Loeschblechanordnung enthaltenden Lichtbogenkammer
DE1904731A1 (de) * 1969-01-31 1970-08-13 Westermeyer Dipl Ing Joseph Elektrischer Kleinselbstschalter
DE1966598A1 (de) * 1969-01-31 1973-07-12 Westermeyer Joseph Dipl Ing Elektrischer kleinselbstschalter mit schaltmechanik und lichtbogenkammer
FR2154628A1 (fr) * 1971-09-30 1973-05-11 Maier & Cie C
DE2848589A1 (de) * 1978-11-09 1980-05-22 Licentia Gmbh Leitungsschutzschalter mit einer eine blasschleife bildenden kontaktanordnung
GB2063566A (en) * 1979-11-13 1981-06-03 Garrell Alsina Sa Automatic circuit breaker
DE3226820A1 (de) * 1981-08-13 1983-07-14 Kombinat Veb Keramische Werke Hermsdorf, Ddr 6530 Hermsdorf Leitungsschutzschalter in schmalbauweise

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0251160A2 (fr) * 1986-06-27 1988-01-07 Asea Brown Boveri Aktiengesellschaft Dispositif d'extinction pour disjoncteurs électriques
EP0251160A3 (en) * 1986-06-27 1988-08-24 Brown, Boveri & Cie Aktiengesellschaft Quenching device for electric circuit breaker
EP0557620A1 (fr) * 1991-12-23 1993-09-01 Koninklijke Philips Electronics N.V. Interrupteur à soufflage magnétique
EP0557621A1 (fr) * 1991-12-23 1993-09-01 Koninklijke Philips Electronics N.V. Disjoncteur
EP0577586A1 (fr) * 1992-06-29 1994-01-05 Felten & Guilleaume Austria Ag Interrupteur automatique
TR27123A (tr) * 1993-07-21 1994-11-09 Felten & Guilleaume Ag Oester Kontak köprüsüne, tespit mandali mesnedine, tepit mandalina sahip otomatik salter.

Also Published As

Publication number Publication date
DE3339399C2 (fr) 1992-07-30
CA1227826A (fr) 1987-10-06
AU570739B2 (en) 1988-03-24
DE3339399A1 (de) 1985-05-09
US4614928A (en) 1986-09-30
EP0143982B1 (fr) 1987-05-27
AU3480384A (en) 1985-05-02

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