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EP1096529A1 - Disjoncteur de protection électrique - Google Patents

Disjoncteur de protection électrique Download PDF

Info

Publication number
EP1096529A1
EP1096529A1 EP00117609A EP00117609A EP1096529A1 EP 1096529 A1 EP1096529 A1 EP 1096529A1 EP 00117609 A EP00117609 A EP 00117609A EP 00117609 A EP00117609 A EP 00117609A EP 1096529 A1 EP1096529 A1 EP 1096529A1
Authority
EP
European Patent Office
Prior art keywords
magnet armature
release
switching device
armature
spring
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
EP00117609A
Other languages
German (de)
English (en)
Other versions
EP1096529B1 (fr
Inventor
Manfred Faust
Klaus Dauer
Lothar Winzen
Günter Baujen
Rudolf Baumeister
Volker Blechacz
Peter Willerscheidt
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.)
Eaton Industries GmbH
Original Assignee
Moeller GmbH
Kloeckner Moeller 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 Moeller GmbH, Kloeckner Moeller GmbH filed Critical Moeller GmbH
Publication of EP1096529A1 publication Critical patent/EP1096529A1/fr
Application granted granted Critical
Publication of EP1096529B1 publication Critical patent/EP1096529B1/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
    • 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
    • H01H71/24—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
    • H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts

Definitions

  • the invention relates to an electrical protective switching device, in particular Motor protection switch, according to the preamble of claim 1.
  • Such a switching device is already known from DE 42 08 716 C2.
  • This protective switching device also has an insulating housing with a Switching device and a tripping unit with a short-circuit sensitive electromagnetic quick release.
  • Known protective switching devices have a tripping bridge which can be actuated directly by a quick-action tappet. Depending on the device size or current range, there is a different magnetic stroke for the quick release.
  • AGM modules trip sensors
  • AGM modules trip sensors
  • the invention has for its object a generic switching device to create, which is so improved in its structure that a universal use of auxiliary modules that provide an interface to the Have trigger bridge is possible.
  • the invention makes it possible to build auxiliary modules from smaller device series to use. This lowers development, production and storage costs.
  • FIG. 1 shows an electrical protective switching device 1, in particular Motor protection switch, with a rotary drive and a rotary head 11 for on and Switch off and display the trip in the event of overload or short circuit and with a housing 12 which is divided into three housing parts 13, 14, 15.
  • the middle one Housing part 14 has cable entry openings 16 with cable clamps 17.
  • the 2 shows the release unit of the invention Circuit breaker in an exploded view.
  • The includes Trigger unit a parts carrier 5 to which a connector 6 can be attached.
  • the parts carrier 5 advantageously consists of a thermoplastic.
  • the connector 6 is made of copper and is L-shaped, the lower outward leg 18 being provided as a contact tap for the cable clamp 17.
  • the parts carrier 5 has a fixing pin 23 which projects into a corresponding recess on the lower leg 18 of the connector 6.
  • the upper leg 21 is provided with a connecting zone 19 for connecting an overcurrent or bimetal release 9.
  • a heating conductor 22 is connected to the connecting piece 6, in particular by means of a plasma or inert gas welding connection, via the connecting zone 19.
  • the heating conductor 22 is placed in a known manner spirally around a bimetal 8 and connected to the bimetal 8 at its other free end, preferably likewise by means of a plasma or inert gas welding connection. Due to the inert gas welding connection between the copper and the bimetal 8, which is very difficult to weld, a secure connection is established, which eliminates quality problems in this regard. With the shielding gas or plasma welding, the heating element 22 is welded to the passive side of the bimetal 8.
  • the passive side of the bimetal 8 is well suited for welding, because only the active side consists of an alloy that is relatively difficult or impossible to weld.
  • the lower end of the bimetal 8 is vertically connected to a yoke plate 28 on an outwardly bent tongue 33.
  • the yoke plate 28 consists of an essentially U-shaped area with two parallel side legs 29, 31 and a cross leg 30 connecting them, which hold the quick release 10, a fastening section 32 which is integrally connected at right angles to the second leg 31 and a tongue 33.
  • a fixing tab is arranged, which in a elongated, provided with fixing knobs, locking opening of the parts carrier 5 intervenes. As a result, the yoke plate 28 is fastened in the parts carrier 5.
  • the trigger coil 38 of the quick release 10 is one end of the coil the contact element 7 and with its other coil end with the yoke plate 28 connected to the fastening section 32.
  • the connection is also made preferably by inert gas or plasma welding.
  • the parallel to the mounting portion 32 leg portion of the Contact element 7 is partially provided with recesses in order to Parts of the yoke plate 28 interlock. This will be extreme built to save space.
  • a slot motor 47 is preassembled in the lower region of the parts carrier 5.
  • the trigger unit only fixed by gluing in the housing 12 (i.e. without Screwing, locking, bracing or the like).
  • glue points have extensions on the live ones Share proven.
  • the current flow in the parts arranged on the parts carrier 5 is from the lower leg of the connector 6 to the weld Connection zone 19 / heating element 22, then into heating element 22 up to the welded connection heating element 22 / bimetal 8, then via the bimetal 8 up to the weld joint bimetal 8 / yoke plate 28, then over the fastening portion 32 of the yoke plate 28 to the Welded connection fastening section 32 / tripping coil 38, then over the winding of the trip coil 38 to the welded joint Tripping coil 38 / contact element 7 in the contact element 7 for Continuation of the current via that with the contact element 7 interacting movable contact element.
  • FIG. 3a shows a preassembled unit with a receiving body 60, a Magnetic armature 62 and a spring element 64 in an exploded view.
  • the magnet armature 62 has a first part MA 1 , a second part MA 2 , and a third part MA 3 , the second part MA 2 being arranged between the first part MA 1 and the third part MA 3 .
  • the magnet armature 62 is essentially rod-shaped, with its lower part MA 1 having an almost square cross-section and its upper part MA 2 being designed as a pin-shaped extension with a significantly smaller and in particular circular cross-section.
  • the upper part MA 2 is advantageously not arranged centrally, but offset from the center axis of the armature 62.
  • the upper part MA 2 is expanded by a preferably plate-like head piece 63.
  • the magnet armature 62 consists of a magnetizable material.
  • the magnet armature body (with the exception of the head piece 63) can, for example, be easily turned from a square profile. By centering the material in the central axis of the square profile, the lower part MA 1 and, when centering the material from the center of the profile, the upper part MA 2 can be manufactured (eg by turning on a lathe).
  • the receiving body 60 consists of insulating material and serves to receive the Magnet armature 62 and the spring element 64.
  • the magnet armature 62 is longitudinally movable in the, essentially tubular, Mounted body 60.
  • the spring element 64 which is preferably designed as a torsion spring and also in, respectively is arranged on the receiving body 60, the magnet armature 62 is opposite its direction of release movement (here: downward) with a spring force acted upon.
  • the torsion spring is supported with one free end from an abutment 66 of the receiving body 60. With her other free At the end, the torsion spring engages behind the head piece 63 of the armature 62 and hereby applies a spring force against it Release direction of movement.
  • the end of the spring element 64 which engages on the head piece 63, engages in a free area 80 of the second part MA 2 in the vicinity of the center axis of the magnet armature 62.
  • a trigger element 81 of a trigger bridge is arranged in the free area 80 of the second part MA 2 in the vicinity of the axis center of the magnet armature 62.
  • the trigger element 81 is hook-shaped.
  • the receiving body 60 consists essentially of a lower, tubular section I and a head section II.
  • the section I serves in its upper part I 1 for guiding the magnet armature 62 and in its lower part I 2 for fastening within the quick release device 10.
  • the receiving body 60 has an adaptation to the lower part MA 2 of the magnet armature 62 the wall cross-sections narrowing (according to FIG. 3b).
  • the receptacle body 60 is designed in its interior to match the cross section of the magnet armature 62, in particular circular (FIG. 3 c).
  • the magnet armature 62 is inserted with its head piece 63 first, from below into the lower part I 2 of the receiving body 60.
  • the magnet armature 62 is biased within the receiving body 60 by a free end of the torsion spring which engages under the head piece 63 of the magnet armature 62, counter to the direction of release movement.
  • the magnet armature 62 is limited in its displacement against the direction of release movement by the transition plane MA Ü formed between the upper and lower part of the magnet armature 62, which interacts with an in particular annular abutment inside the receiving body 60.
  • the magnet armature 62 mounted in the preassembled unit (60, 62, 64) is movably mounted between the described rest position and a release position located in the direction of release movement.
  • the trigger position is reached when a certain magnetic field strength and thus at a certain short-circuit current level is reached in that the magnet armature 62, which is mounted in a longitudinally movable manner, and the fixed magnetic core 68 are magnetized by the generated magnetic field and attract each other by the magnetic effect.
  • the displacement path of the magnet armature 62 that can be achieved at a specific current strength and the spring force with which the magnet armature 62 is biased against the direction of the movement of the release movement interact.
  • the dimensioning of the torsion spring allows the limit current at which the quick release 10 is to be triggered to be adjustable.
  • the magnet armature 62 acts (strikes) on an impact armature 69, which is guided in regions in the magnet core 68.
  • the receiving body 60 for attachment to the quick release 10 with its lower open end of section I through an opening 29a of the side leg 29 on the magnetic core 68 of the quick release 10 detachably attached (non-positive).
  • This will make it easy Interchangeability of the preassembled unit consisting of a holder 60, armature 62 and spring element 64 guaranteed.
  • This has one easier assembly and a simplified dimensioning of the Switching devices with regard to their response values for short-circuit currents. So that the unit 60, 62, 64 is fixed against rotation in the short-circuit release 10, have the receiving body 60 and the side leg 29 corresponding Anti-rotation means 70, 71.
  • the receiving body 60 preferably with a circumferentially arranged outward Fixation extension formed, while the side leg 29 in his Opening 29a cooperates with the fixation extension Has recess.
  • the trigger element 92 is one Translation member 96 is actuated, which on the release bridge 90th effective stroke movement due to a gear ratio of less than 1: 1 transmits. This means that the stroke movement of the magnet armature can be greater than the lifting movement actually required.
  • the to interface 91 for stroke movement acting on the auxiliary module is reduced
  • the translation member 96 is a spring end of the spring element 64 trained operating lever 93.
  • the actuating lever 93 is located at one end of its actuating end 94 Head piece 63 of the armature 62 under spring action, which Tripping element 92 is operatively connected to an actuation point 95 and wherein the operating point 95 of the operating lever 93 between the Actuating end 94 and the fulcrum 97 is arranged.
  • the invention makes it possible to reduce the angular position in such a way that that the effective distance of the interface is reduced from 6mm to 4.2mm becomes.
  • the release bridge has a pivotable tongue that the Trip message indicates. The distance is the stroke that the tongue executes.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
EP00117609A 1999-10-29 2000-08-16 Disjoncteur de protection électrique Expired - Lifetime EP1096529B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19952186A DE19952186A1 (de) 1999-10-29 1999-10-29 Elektrisches Schutzschaltgerät
DE19952186 1999-10-29

Publications (2)

Publication Number Publication Date
EP1096529A1 true EP1096529A1 (fr) 2001-05-02
EP1096529B1 EP1096529B1 (fr) 2005-04-27

Family

ID=7927340

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00117609A Expired - Lifetime EP1096529B1 (fr) 1999-10-29 2000-08-16 Disjoncteur de protection électrique

Country Status (2)

Country Link
EP (1) EP1096529B1 (fr)
DE (2) DE19952186A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2204834B1 (fr) * 2008-12-31 2017-12-06 LS Industrial Systems Co., Ltd Mécanisme de déclenchement pour disjoncteur

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT509250A1 (de) 2008-03-05 2011-07-15 Moeller Gebaeudeautomation Gmbh Schaltgerät

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096469B (de) * 1959-01-24 1961-01-05 Elektroinstallation Annaberg V Elektromagnetische Schnellausloese-vorrichtung fuer UEberstromschalter, insbesondere Kleinselbstschalter
CH403030A (de) * 1962-05-15 1965-11-30 Felten & Guilleaume Ag Oester Wechselstrom-Leitungsschutzschalter mit Schlag-Zuganker
EP0213979A1 (fr) * 1985-07-31 1987-03-11 Merlin Gerin Déclencheur magnétothermique associé au mécanisme d'un disjoncteur miniature à boîtier isolant
EP0333650A1 (fr) * 1988-03-15 1989-09-20 ABBPATENT GmbH Transmission de force dans un déclencheur électromagnétique d'un disjoncteur de montage
DE4208716A1 (de) * 1991-03-21 1992-09-24 Telemecanique Electrique Schutzschalter zur ankopplung an ein betaetigungsmodul und/oder ein meldemodul
EP0621618A2 (fr) * 1993-04-21 1994-10-26 ABBPATENT GmbH Déclencheur magnétique pour appareil de commutation électrique
WO1997038432A1 (fr) * 1996-04-08 1997-10-16 Square D Company Actionneurs modulaires annexes de disjoncteur

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2243139A1 (de) * 1972-09-01 1974-03-07 Licentia Gmbh Kupplung fuer mehrpolige selbstschalter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1096469B (de) * 1959-01-24 1961-01-05 Elektroinstallation Annaberg V Elektromagnetische Schnellausloese-vorrichtung fuer UEberstromschalter, insbesondere Kleinselbstschalter
CH403030A (de) * 1962-05-15 1965-11-30 Felten & Guilleaume Ag Oester Wechselstrom-Leitungsschutzschalter mit Schlag-Zuganker
EP0213979A1 (fr) * 1985-07-31 1987-03-11 Merlin Gerin Déclencheur magnétothermique associé au mécanisme d'un disjoncteur miniature à boîtier isolant
EP0333650A1 (fr) * 1988-03-15 1989-09-20 ABBPATENT GmbH Transmission de force dans un déclencheur électromagnétique d'un disjoncteur de montage
DE4208716A1 (de) * 1991-03-21 1992-09-24 Telemecanique Electrique Schutzschalter zur ankopplung an ein betaetigungsmodul und/oder ein meldemodul
EP0621618A2 (fr) * 1993-04-21 1994-10-26 ABBPATENT GmbH Déclencheur magnétique pour appareil de commutation électrique
WO1997038432A1 (fr) * 1996-04-08 1997-10-16 Square D Company Actionneurs modulaires annexes de disjoncteur

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2204834B1 (fr) * 2008-12-31 2017-12-06 LS Industrial Systems Co., Ltd Mécanisme de déclenchement pour disjoncteur

Also Published As

Publication number Publication date
EP1096529B1 (fr) 2005-04-27
DE19952186A1 (de) 2001-05-03
DE50010151D1 (de) 2005-06-02

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