EP1071108B1 - Actionneur électromagnétique, en particulier un dispositif de déclenchement, en particulier pour un disjoncteur - Google Patents

Actionneur électromagnétique, en particulier un dispositif de déclenchement, en particulier pour un disjoncteur Download PDF

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Publication number
EP1071108B1
EP1071108B1 EP00114808A EP00114808A EP1071108B1 EP 1071108 B1 EP1071108 B1 EP 1071108B1 EP 00114808 A EP00114808 A EP 00114808A EP 00114808 A EP00114808 A EP 00114808A EP 1071108 B1 EP1071108 B1 EP 1071108B1
Authority
EP
European Patent Office
Prior art keywords
spring
armature
arm
rocker
actuator
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.)
Expired - Lifetime
Application number
EP00114808A
Other languages
German (de)
English (en)
Other versions
EP1071108A2 (fr
EP1071108A3 (fr
Inventor
Erwin Ing. Muders
Joachim Majewski
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 EP1071108A2 publication Critical patent/EP1071108A2/fr
Publication of EP1071108A3 publication Critical patent/EP1071108A3/fr
Application granted granted Critical
Publication of EP1071108B1 publication Critical patent/EP1071108B1/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
    • H01H71/2463—Electromagnetic mechanisms with plunger type armatures

Definitions

  • the invention relates to an electromagnetic actuator according to the preamble of Claim 1.
  • Such actuators are widely used, especially in circuit breakers, used to detect and disable a short circuit.
  • the actor or Triggers have a yoke and inside the yoke a coil that has an anchor and surround a core. If a short circuit occurs, then the armature against the Core pulled and the movement of the anchor on a contact lever or on movable Contact piece and / or transferred to a switch lock; when the movement the switching mechanism is only transmitted to the contact piece, the Contact the contact piece again after the short circuit has ended. About the switching mechanism, the movable contact piece is permanently opened.
  • the object of the invention is to provide an actuator of the type mentioned, in which the trigger is pole independent and the force curve of the bondage for different Variants can be adapted.
  • a bearing is rotatably mounted relative to the actuator, two-armed rocker provided, one arm of which is coupled to the anchor and on the other arm attacks one end of a fetlock spring, the other end also fixed in relation to the anchor; the rocker is arranged that the center line of the spring to the through the axis of rotation of the rocker and the Einhang BlackBerry the other end running dead center line in the tripping process pivots so that the force of holding the anchor in its rest position Spring is reduced during the triggering process.
  • a further advantageous embodiment of the invention is that the rocker in is rotatably mounted on her knee.
  • the axis of rotation of the rocker is located radially next to the armature.
  • An arrangement further improving measure is that the pivot point the spring on the rocker crosses the dead center, so that the spring is the anchor accelerated in triggering additionally with. This acts on triggering the armature both the magnetic field generated by the coil, as well as the force the spring, which increases as the armature moves in the triggering direction.
  • the rocker has approximately an L-shape, with its arm coupled to the arm about perpendicular to the central axis of the armature and its arm coupled to the spring approximately run parallel to it.
  • the spring may be a compression spring or a tension spring be. In a particularly preferred arrangement, a tension spring is used.
  • a further advantageous embodiment of the invention may be that the Rocker is stored at the yoke.
  • the spring with its other Be hung at the end of the yoke.
  • the actuator which then z as a trigger.
  • B. used in a short breaker is reset by a contact spring, the one of the trigger directly actuated contact lever is assigned to sufficient in the on state Create contact pressure. If the actuator as a trigger in a circuit breaker used, then it is by means of the switch knob on the switch lock reset by the contact lever.
  • the actuator according to the invention which has the reference numeral 10 in FIG. 1, is in one Housing 11 housed a circuit breaker.
  • the actuator 10 has a yoke 12, one of which extends parallel to the longitudinal direction of the actuator 10 Jochsteg shows in supervision.
  • Within the yoke is a coil 13 with a coil lead 14 and a coil lead 15.
  • the coil 13 surrounds a Immersion anchor 16 whose ends 17 and 18 project beyond the actuator or trigger 10 axially.
  • At the end 17 of the anchor has a transverse to the longitudinal axis guide plate 19 and a spaced apart retaining plate 20 through which a Gap 21 is formed, in which a first arm 22 of a rocker 23 engages, so that the first arm 22 is positively coupled to the armature 16.
  • the rocker 23 has an approximately perpendicular to the first arm 22 extending second Arm 24; it is on a projection 25 of the yoke 12 in a receptacle 26 with her Rotary shaft 27 rotatably mounted.
  • the second arm 24 In the embodiment of FIG. 1 jumps the second arm 24 against the release direction A before.
  • an end 28 of a tension spring 29 having a center line M in one first pivot point 28 a hooked, the other end 31 on a projection 30th is also mounted on the yoke in a second pivot point 31a.
  • the connecting line V between the second pivot point 31a and the rotation axis 27 is a Dead center.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Magnetically Actuated Valves (AREA)
  • Valve Device For Special Equipments (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Electronic Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)

Claims (10)

  1. Actionneur électromagnétique, en particulier déclencheur électromagnétique pour un disjoncteur de protection de ligne ou similaire, comportant une culasse, une bobine, une armature, un noyau et un ressort de traction, caractérisé en ce qu'il est prévu une bascule (23) stationnaire, pivotante par rapport à l'actionneur, avec un premier bras (22) couplé à l'armature (16) et un second bras (24), sur lequel l'extrémité (28) d'un ressort de traction (29) agit en un premier point d'attache (28a), l'autre extrémité (31) du ressort étant fixée également de manière stationnaire en un second point d'attache (31a), et en ce que la bascule (23) est disposée de manière telle que, lors du déclenchement, le premier point d'attache (28a) du ressort (29) sur le deuxième bras (24) se déplace sur une ligne de point mort (V) passant par l'axe de rotation (27) et le second point d'attache (31a), de telle sorte que lors du déclenchement, la force du ressort maintenant l'armature (16) dans sa position de repos diminue.
  2. Actionneur selon la revendication 1, caractérisé en ce que l'axe de rotation (27) de la bascule (23) est disposé radialement près de l'armature.
  3. Actionneur selon une des revendications précédentes, caractérisé en ce que le premier point d'attache (28a) du ressort de traction (29) sur la bascule (23), pendant le déclenchement, coupe la ligne de point mort (V), de sorte que le ressort, en outre, accélère l'armature dans la direction de déclenchement.
  4. Actionneur selon une des revendications précédentes, caractérisé en ce que la bascule (23) a sensiblement une forme de L, dont le premier bras (22) couplé à l'armature (16) est sensiblement perpendiculaire à l'axe médian de l'armature (16) et dont le second bras (24) couplé au ressort (29) est sensiblement parallèle à l'axe médian de l'armature (16).
  5. Actionneur selon la revendication 4, caractérisé en ce que la bascule (23) est montée tournante au niveau de son coude.
  6. Actionneur selon la revendication 5, caractérisé en ce que le second bras (24) fait saillie dans la direction opposée à la direction d'action de la force du ressort de traction (29).
  7. Actionneur selon la revendication 6, caractérisé en ce que le second bras (24) fait saillie dans la direction de déclenchement de l'actionneur.
  8. Actionneur selon la revendication 6, caractérisé en ce que le second bras fait saillie dans la direction opposée à la direction de déclenchement de l'actionneur.
  9. Actionneur selon une des revendications précédentes, caractérisé en ce que la bascule (23) est montée sur la culasse (12).
  10. Actionneur selon la revendication 9, caractérisé en ce que le ressort est attaché à la culasse par son autre extrémité.
EP00114808A 1999-07-21 2000-07-11 Actionneur électromagnétique, en particulier un dispositif de déclenchement, en particulier pour un disjoncteur Expired - Lifetime EP1071108B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19934094 1999-07-21
DE19934094A DE19934094A1 (de) 1999-07-21 1999-07-21 Elektromagnetischer Aktor, insbesondere elektromagnetischer Auslöser, insbesondere für einen Leitungsschutzschalter

Publications (3)

Publication Number Publication Date
EP1071108A2 EP1071108A2 (fr) 2001-01-24
EP1071108A3 EP1071108A3 (fr) 2002-06-19
EP1071108B1 true EP1071108B1 (fr) 2003-08-27

Family

ID=7915478

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00114808A Expired - Lifetime EP1071108B1 (fr) 1999-07-21 2000-07-11 Actionneur électromagnétique, en particulier un dispositif de déclenchement, en particulier pour un disjoncteur

Country Status (5)

Country Link
EP (1) EP1071108B1 (fr)
AT (1) ATE248433T1 (fr)
DE (2) DE19934094A1 (fr)
HU (1) HUP0002802A2 (fr)
PL (1) PL341552A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2024143A1 (de) * 1970-05-16 1971-12-02 Siemens Ag Schaltgerät mit elektromagnetischem Auslöser
DE3619239A1 (de) * 1986-06-07 1987-12-10 Kloeckner Moeller Elektrizit Schnellausloeser fuer leitungsschutzschalter
DE3833128A1 (de) * 1988-09-29 1990-04-05 Siemens Ag Elektromagnetischer ausloeser, insbesondere fuer leitungsschutzschalter
DE4312950A1 (de) * 1993-04-21 1994-10-27 Abb Patent Gmbh Magnetischer Auslöser für ein elektrisches Schaltgerät
DE4445419A1 (de) * 1994-12-20 1996-06-27 Abb Patent Gmbh Elektrisches Installationsgerät, insbesondere Leitungsschutzschalter

Also Published As

Publication number Publication date
HU0002802D0 (en) 2000-09-28
PL341552A1 (en) 2001-01-29
EP1071108A2 (fr) 2001-01-24
EP1071108A3 (fr) 2002-06-19
DE50003421D1 (de) 2003-10-02
ATE248433T1 (de) 2003-09-15
DE19934094A1 (de) 2001-01-25
HUP0002802A2 (hu) 2001-02-28

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