EP0015228B1 - Dispositif d'actionnement télécommandable pour commutateur de protection à électroaimant - Google Patents

Dispositif d'actionnement télécommandable pour commutateur de protection à électroaimant Download PDF

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Publication number
EP0015228B1
EP0015228B1 EP80730013A EP80730013A EP0015228B1 EP 0015228 B1 EP0015228 B1 EP 0015228B1 EP 80730013 A EP80730013 A EP 80730013A EP 80730013 A EP80730013 A EP 80730013A EP 0015228 B1 EP0015228 B1 EP 0015228B1
Authority
EP
European Patent Office
Prior art keywords
coupling
armature
actuator
electromagnet
magnet
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
Application number
EP80730013A
Other languages
German (de)
English (en)
Other versions
EP0015228A1 (fr
Inventor
Kiyoshi Dipl.-Ing. Kandatsu
Satoru Dipl.-Ing. Nakamura
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Publication of EP0015228A1 publication Critical patent/EP0015228A1/fr
Application granted granted Critical
Publication of EP0015228B1 publication Critical patent/EP0015228B1/fr
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
    • H01H51/08—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet
    • H01H51/082—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism
    • H01H51/086—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism with radial ratchet elements
    • H01H51/088—Contacts alternately opened and closed by successive cycles of energisation and de-energisation of the electromagnet, e.g. by use of a ratchet using rotating ratchet mechanism with radial ratchet elements moved alternately in opposite directions

Definitions

  • the invention relates to a remotely controllable drive device for switching on and off electrical circuit breakers with an electromagnet and a drive slide for the actuating handle of the circuit breaker which can be moved by the armature of the electromagnet via a lever mechanism.
  • a known drive device of this type (US-A-3 893 050) has two electromagnets, each connected to the drive slide by a lever mechanism, which are alternately energized to switch the circuit breaker on and off.
  • the invention is based on the object to provide a drive device for the same application, which works with reduced dimensions, reduced weight and lower costs with only one electromagnet.
  • the invention makes use, in modified form, of features which have already been used as a reversing mechanism in installation switches (remote impulse switches). These devices, like the drive device according to the invention, allow the alternate opening and closing of contacts by successive brief excitation of an electromagnet.
  • known devices of this type US-A-2 046 401 and FR-A-605 918) form unitary devices together with the contacts and their power supplies
  • the drive device according to the invention is a device separate from the actual circuit breaker , which is used when necessary and attached to the circuit breaker.
  • the known reversing mechanisms cannot easily be used as a drive device for circuit breakers. While only comparatively low currents are to be switched in the case of remote installation switches and consequently only low actuation forces are required, the movement resistance to be overcome when actuating circuit breakers is of a different order of magnitude. Mechanical stresses thus occur which the known reversing mechanisms are not up to and which cannot be dealt with simply by increasing the dimensions. In particular, high demands are placed on the reliability of the reversing of the lever mechanism, so that it is ensured that after each switching action when the electromagnet is energized again, the opposite switching action takes place and not z. B. an idle stroke.
  • the invention achieves these requirements with only a few and simply designed parts.
  • Figures 1 to 5 are plan views showing the construction and operation of the drive device for a circuit breaker. 1 shows the switch-off position at the start of the switch-on process.
  • Fig. 2 shows the state during the switching process immediately after switching on.
  • Fig. 3 shows an intermediate position during the transition to the preparation for the switch-off after the switch-on operation is completed.
  • An electromagnet 5 of the diving armature type comprises a magnet coil 6, a fixed core 7, a movable armature 8 and a yoke 9.
  • the magnet coil 6 carries a fastening pin 10 as an abutment of an over-center spring 16.
  • a two-armed lever 17 is pivotably mounted on a fixed shaft 11 .
  • the shaft 11 is located above the electromagnet 5 in the housing in which the drive device 1 is housed.
  • a driver 12 the central part 12c of which is widened or widened and which has hook-like ends 12a and 12b on both sides, is pivotably mounted on the upper end part of the armature 8 by means of a shaft 13. Between this shaft 13 and the fixed shaft 11 is under chip tion a return spring 14 attached such that it constantly pulls the armature 8 up to its rest position.
  • the driver 12 carries in its upper part a pin 15 as an abutment of the over-center spring.
  • the drivers 12 and the two-armed lever 17 are attached as control elements between the drive slide 4 and the armature 8.
  • a first coupling pin 17a transmits the pivoting movements of the two-armed lever 17 to the drive slide 4 by engaging in its coupling slot 4a.
  • Another coupling bolt 17b is located between the first coupling bolt 17a and the fixed shaft 11, that is to the left of this, while a third coupling bolt 17c is attached to the two-armed lever 17 to the right of the shaft 11.
  • the three coupling bolts 17a, 17b and 17c are arranged in a line.
  • the coupling bolts 17b and 17c of the lever 17 are alternately gripped by the hook-like ends 12a and 12b of the driver 12 and driven by the action of the electromagnet 5 so that the lever 17 is pivoted clockwise or counterclockwise in order to move the drive slide 4 upwards or downwards slide and thereby switch the circuit breaker, not shown, on or off.
  • Fig. 1 shows the state of the parts when the circuit breaker is turned off.
  • the drive slide 4 is moved downward and the armature 8 is in its rest position under the action of the return spring 14.
  • the coupling pin 17a assumes its lower position while the driver 12 together with the armature 8 has moved upwards and remains there, while the hook-like end 12b engages the coupling pin 17c of the lever 17. If the solenoid 6 is now energized, the armature 8 is attracted by the fixed core 7 against the force of the return spring 14. Then the hook-like end 12b of the driver 12 pulls the coupling bolt 17c according to FIG. 2 and thus the right end of the lever 17th down.
  • the lever 17 is then pivoted counterclockwise by means of the coupling bolt 17b through the hook-like end 12a of the driver 12 when the magnetic coil 6 is excited again. Therefore, the coupling pin 17a drives the drive lever 4 down until the operating handle 2 of the circuit breaker, not shown, is pressed to its lower switch-off position, as shown in FIG. 5. If the excitation of the magnetic coil 6 is interrupted, the driver 12 returns upward, while its middle part 12a is guided along the coupling bolt 17b by the biasing force of the return spring 14. When the axis of the dead center spring 16 comes to a position on the right side of the return spring 14, the driver 12 is pivoted back to the side of the coupling pin 17c, whereby the position of the parts shown in FIG. 1 is restored.
  • a driver is provided in the drive device according to the invention, the hook-like ends of which, when the armature of an electromagnet is reset, interacting alternately with two coupling bolts of a two-armed lever, so that a circuit breaker is switched on and off using a single electromagnet can. Therefore, the drive device can be manufactured inexpensively with a simple structure and small size.

Claims (1)

  1. Dispositif d'entraînement télécommandable (1) pour la fermeture et l'ouverture de commutateurs de protection comportant un électroaimant (5) et un organe coulissant d'entraînement (4), pouvant être déplacé par l'armature de l'électroaimant par l'intermédiaire d'un mécanisme à levier, pour la manette d'actionnement du commutateur de protection, caractérisé par les mesures suivantes:
    a) un levier (17) à deux branches, coopérant à une de ses extrémités avec l'organe coulissant d'entraînement (4), supporte respectivement une pièce de couplage (goujon de couplage 17b, 17c) de part et d'autre d'un coussinet de pivotement fixe (11);
    b) un élément d'entraînement (12) couplé de façon articulée avec l'armature (8) de l'électroaimant (5), auquel est accroché un ressort (16) de dépassement du point mort fixé sur la bobine d'excitation (6), comporte une partie centrale élargie (12c) pour le guidage sur les pièces de couplage (goujons de couplage 17b, 17c) du levier (17) à deux branches de manière que l'élément d'entraînement (12) soit guidé au-déjà du point mort lors du retour de l'armature (8) dans sa position de repos, et que de ce fait l'élément d'entraînement (12) après avoir effectué une opération de commutation lors du retour de l'armature (8) dans sa position de repos, soit séparé automatiquement d'une des pièces de couplage (par exemple goujon de couplage 17b) pour préparer l'opération de commutation opposée et soit engagé avec l'autre pièce de couplage (par exemple goujon de couplage 17c);
    c) l'élément d'entraînement (12) comporte à son extrémité libre deux parties extrêmes (12a, 12b) en forme de crochets ouverts dans des directions opposées et coopérant avec les pièces de couplage (goujons de couplage 17b, 17c).
EP80730013A 1979-02-21 1980-02-15 Dispositif d'actionnement télécommandable pour commutateur de protection à électroaimant Expired EP0015228B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1922979A JPS5913131B2 (ja) 1979-02-21 1979-02-21 回路しや断器の操作装置
JP19229/79 1979-02-21

Publications (2)

Publication Number Publication Date
EP0015228A1 EP0015228A1 (fr) 1980-09-03
EP0015228B1 true EP0015228B1 (fr) 1983-06-08

Family

ID=11993540

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80730013A Expired EP0015228B1 (fr) 1979-02-21 1980-02-15 Dispositif d'actionnement télécommandable pour commutateur de protection à électroaimant

Country Status (4)

Country Link
EP (1) EP0015228B1 (fr)
JP (1) JPS5913131B2 (fr)
DE (1) DE3063646D1 (fr)
ES (1) ES488813A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3116620C2 (de) * 1981-04-27 1985-04-04 Leonid Petrovič Doneck Abara Verbraucherschalteinrichtung
US4553115A (en) * 1984-01-09 1985-11-12 Westinghouse Electric Corp. Molded case circuit breaker with single solenoid operator for rectilinear handle movement
DE3441550A1 (de) * 1984-11-14 1986-05-15 Klöckner-Moeller Elektrizitäts GmbH, 5300 Bonn Fernschaltblock mit magnetsystem, insbesondere zum ein- und ausschalten von motorschaltern und leistungsschaltern
US9184014B2 (en) * 2013-02-01 2015-11-10 General Electric Company Electrical operator for circuit breaker and method thereof
TWM566397U (zh) * 2018-05-09 2018-09-01 連宇股份有限公司 Starting device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893050A (en) * 1974-05-15 1975-07-01 Westinghouse Electric Corp Solenoid actuated circuit breaker operator

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR582686A (fr) * 1923-06-12 1924-12-24 Ateliers Brillie Freres Sa Système de télérupteur
NL14823C (fr) * 1924-11-13 1926-06-15
US2046401A (en) * 1933-08-25 1936-07-07 Austin L Moore Electric switch

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3893050A (en) * 1974-05-15 1975-07-01 Westinghouse Electric Corp Solenoid actuated circuit breaker operator

Also Published As

Publication number Publication date
EP0015228A1 (fr) 1980-09-03
JPS5913131B2 (ja) 1984-03-28
ES488813A1 (es) 1980-09-16
DE3063646D1 (en) 1983-07-14
JPS55111034A (en) 1980-08-27

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