EP1045416A2 - Déclencheur électromagnétique pour un disjoncteur électrique - Google Patents

Déclencheur électromagnétique pour un disjoncteur électrique Download PDF

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Publication number
EP1045416A2
EP1045416A2 EP00106375A EP00106375A EP1045416A2 EP 1045416 A2 EP1045416 A2 EP 1045416A2 EP 00106375 A EP00106375 A EP 00106375A EP 00106375 A EP00106375 A EP 00106375A EP 1045416 A2 EP1045416 A2 EP 1045416A2
Authority
EP
European Patent Office
Prior art keywords
plate
armature
magnetic core
anchor
sleeve
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Withdrawn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
EP00106375A
Other languages
German (de)
English (en)
Other versions
EP1045416A3 (fr
Inventor
Erwin Dipl.-Ing. Muders
Werner Dipl.-Ing. Bruckner
Carola Thielen
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 Patent GmbH
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 EP1045416A2 publication Critical patent/EP1045416A2/fr
Publication of EP1045416A3 publication Critical patent/EP1045416A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • 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
    • H01H71/34—Electromagnetic mechanisms having two or more armatures controlled by a common winding

Definitions

  • the invention relates to an electromagnetic release for an electrical switching device, in particular a circuit breaker, for example a circuit breaker, according to the preamble of claim 1.
  • Triggers that respond to overcurrent are mostly thermal Triggers that have a bimetallic strip or a strip of shape memory alloy material have, which are heated by the overcurrent and thereby turn out. The thermal release can flow through it or it can is caused by live parts, such as the magnetic yoke or the magnetic coil warmed up so that it can bend out and release a switch lock.
  • Short circuit currents are generally generated by means of an electromagnetic release switched off, the a yoke, an armature, a magnetic core and one around a coil sleeve has wound coil. This arrangement is used for short-circuit currents on the one hand to unlatch the key switch, and on the other hand, the contact point to open.
  • So-called folding armature triggers are also known, in which a magnetic yoke and a coil penetrating core and a rotatable covering the magnetic yoke and the core supported hinged anchors are provided.
  • These hinged anchor systems for unlatching a switch lock of the circuit breaker in the overload area develop a relatively low tripping force, see above that to ensure the function of the device, the smallest possible manufacturing tolerances with a clear path, air gap and coil position are required. It is also an accurate one Coordination between the impact anchor and the hinged anchor required so on the one hand, the impact anchor always responds after the folding anchor; on the other hand, may the impact anchor should also not respond too late.
  • the object of the invention is an electromagnetic release of the aforementioned Art to create, in which due to the design only a rough vote the magnetic response values of the individual components is required.
  • a plate anchor is associated with the trigger, which is coupled to the magnetic core, so that when an overcurrent occurs Plate anchor is pulled against the plate and thereby unlocks a key switch.
  • the magnetic core can be arranged movably within the coil sleeve and the plate armature can be connected to the magnetic core.
  • the magnet armature which is still stationary, attracts the magnet core, so that it is pulled against the plate and thereby releases a latch lever of a switch lock.
  • a variant is that the magnetic core is fixed to the plate and thus to the Yoke is connected and has a recess open to the plate into which engages sleeve firmly connected to the plate anchor; the sleeve further comprises also the firing pin. If an overcurrent occurs, the magnet system pulls first the sleeve with the plate anchor inside the recess in the core and reduces the air gap from the yoke to the plate anchor. This will make the magnetic Force on the magnet armature increases and this tears off the bond magnet and strikes the striker in the direction of opening the contact point.
  • FIG. 1 shows an electromagnetic release 10, which has a U-shaped yoke 11 comprises, the leg ends 12 and 13 of a non-magnetic plate 14th are covered, which is firmly connected to the leg ends of the legs 12 and 13.
  • a coil sleeve 17 is provided, which is also firmly connected to the plate 14.
  • a coil 18 is provided and on the out of the web 15 protruding end of the coil sleeve 17, a so-called tether magnet 19 is attached. This captive magnet 19 closes off the coil sleeve 17.
  • a magnetic armature 20 which is partially in the interior 21 of the yoke 11 protrudes.
  • the plate 14 has an opening 22 and lies on the plate 14 a magnetic core 23 on which a cylindrical extension 24 is formed, which the Opening 22 passes through.
  • the cylindrical extension 24 With a Plate anchor 25 firmly connected.
  • a tether spring 29 is provided, which seeks to push the magnet armature 20 away from the magnetic core 23.
  • a striker pin 30 is provided, which the inner bore 31 of the magnetic core 23 reaches through and protrudes from the plate anchor 25.
  • the armature 20 is pulled into the interior of the coil 18 and then presses the Striking pin 30 against a movable contact lever 33, which by the force of the magnet armature 20 is opened.
  • FIGS. 3 and 4 show an alternative to the arrangement according to FIGS. 1 and 2. Those parts which are identical to one another have the same reference numbers.
  • the design of the magnetic core 41 which is fixed to the plate 14 is connected and a recess 42 open towards the non-magnetic plate 14 owns.
  • a sleeve 43 which has a cylindrical shape, projects into the recess 42 an area 44 of increased diameter in which the shackle spring 29 'is inserted is.
  • the shackle spring is therefore supported against the bottom 45 of the recess 44 and the bottom 46 of the recess 42.
  • the bottom 46 also has a bore 47, through which the striker pin 30 extends and against the end face 26 of the armature 20 is present.
  • the striking pin 30 passes through the sleeve 43 and protrudes from the plate anchor 25 out.
  • the sleeve 43 is drawn into the interior of the recess, whereby the plate anchor 25 bears against the latch lever 32 and this releases.
  • the armature 20 continues into the coil pulled in and strikes the striker 30 against the contact lever 33 and thus opens the contact point.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
EP00106375A 1999-04-08 2000-03-24 Déclencheur électromagnétique pour un disjoncteur électrique Withdrawn EP1045416A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19915785 1999-04-08
DE1999115785 DE19915785A1 (de) 1999-04-08 1999-04-08 Elektromagnetischer Auslöser für ein elektrisches Schaltgerät

Publications (2)

Publication Number Publication Date
EP1045416A2 true EP1045416A2 (fr) 2000-10-18
EP1045416A3 EP1045416A3 (fr) 2001-12-12

Family

ID=7903848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00106375A Withdrawn EP1045416A3 (fr) 1999-04-08 2000-03-24 Déclencheur électromagnétique pour un disjoncteur électrique

Country Status (3)

Country Link
EP (1) EP1045416A3 (fr)
DE (1) DE19915785A1 (fr)
PL (1) PL339480A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1473753A1 (fr) * 2003-04-30 2004-11-03 Siemens Aktiengesellschaft Appareil de commutation électrique
CN100392787C (zh) * 2005-07-26 2008-06-04 陈景正 电磁式断路器脱扣机构
CN103871791A (zh) * 2012-12-13 2014-06-18 苏州景泰电气有限公司 断路器的分励脱扣器

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005044230B4 (de) * 2005-09-16 2008-04-10 Abb Patent Gmbh Elektromagnetischer Auslöser
DE102006037233A1 (de) * 2006-08-09 2008-02-14 Siemens Ag Schutzschalter
DE102008029188B4 (de) * 2008-06-19 2014-05-22 Siemens Aktiengesellschaft Tauchankerbaugruppe mit verschiedenen Auslösebereichen
DE102008052741A1 (de) 2008-09-24 2010-03-25 Abb Ag Installationsschaltgerät mit einem Magnetauslöser

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1024155B (de) * 1955-10-08 1958-02-13 Voigt & Haeffner Ag Elektromagnetischer Ausloeser fuer Gleich- und Wechselstrom
DE2348613B1 (de) * 1973-09-27 1975-03-20 Siemens Ag Selbstschalter,insbesondere Schutzschalter
DE2616210A1 (de) * 1976-04-13 1977-11-03 Bbc Brown Boveri & Cie Kurzschlussausloeser
DE3132194A1 (de) * 1981-08-14 1983-03-03 Horst Dipl.-Ing. 6900 Heidelberg Drubig Elektro-magnetischer ausloeser
US5387892A (en) * 1990-07-30 1995-02-07 Bticino S.P.A. Permanent magnet release solenoid for automatic circuit breakers and method of making

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034251B (de) * 1956-11-03 1958-07-17 Berker Geb Verfahren zur Justierung eines elektromagnetischen Ausloesers fuer Selbstschalter
DE2454983C2 (de) * 1974-11-20 1976-12-02 Siemens Ag Selbstschalter, insbesondere schutzschalter
DD131314A1 (de) * 1977-05-16 1978-06-14 Lothar Ackermann Elektromagnetischer ueberstromausloeser
CA1294305C (fr) * 1987-08-25 1992-01-14 Donald R. Boyd Bobine de declenchement comportant un enroulement gradateur de champ et un enroulement amplicateur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1024155B (de) * 1955-10-08 1958-02-13 Voigt & Haeffner Ag Elektromagnetischer Ausloeser fuer Gleich- und Wechselstrom
DE2348613B1 (de) * 1973-09-27 1975-03-20 Siemens Ag Selbstschalter,insbesondere Schutzschalter
DE2616210A1 (de) * 1976-04-13 1977-11-03 Bbc Brown Boveri & Cie Kurzschlussausloeser
DE3132194A1 (de) * 1981-08-14 1983-03-03 Horst Dipl.-Ing. 6900 Heidelberg Drubig Elektro-magnetischer ausloeser
US5387892A (en) * 1990-07-30 1995-02-07 Bticino S.P.A. Permanent magnet release solenoid for automatic circuit breakers and method of making

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1473753A1 (fr) * 2003-04-30 2004-11-03 Siemens Aktiengesellschaft Appareil de commutation électrique
CN100392787C (zh) * 2005-07-26 2008-06-04 陈景正 电磁式断路器脱扣机构
CN103871791A (zh) * 2012-12-13 2014-06-18 苏州景泰电气有限公司 断路器的分励脱扣器

Also Published As

Publication number Publication date
DE19915785A1 (de) 2000-10-12
EP1045416A3 (fr) 2001-12-12
PL339480A1 (en) 2000-10-09

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