EP1005060B1 - Déclencheur à manque de tension - Google Patents

Déclencheur à manque de tension Download PDF

Info

Publication number
EP1005060B1
EP1005060B1 EP19990122990 EP99122990A EP1005060B1 EP 1005060 B1 EP1005060 B1 EP 1005060B1 EP 19990122990 EP19990122990 EP 19990122990 EP 99122990 A EP99122990 A EP 99122990A EP 1005060 B1 EP1005060 B1 EP 1005060B1
Authority
EP
European Patent Office
Prior art keywords
lever
tripping
release
spring
detent pawl
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
EP19990122990
Other languages
German (de)
English (en)
Other versions
EP1005060A2 (fr
EP1005060A3 (fr
Inventor
Norbert Nitsche
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 EP1005060A2 publication Critical patent/EP1005060A2/fr
Publication of EP1005060A3 publication Critical patent/EP1005060A3/fr
Application granted granted Critical
Publication of EP1005060B1 publication Critical patent/EP1005060B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/12—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by voltage falling below a predetermined value, e.g. for no-volt protection
    • 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
    • H01H71/50—Manual reset mechanisms which may be also used for manual release
    • H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever

Definitions

  • the invention relates to an undervoltage release for electrical low-voltage circuit breakers.
  • Such an undervoltage release is known, for example, from EP 0 620 580 B1. It comprises a plunger-type magnet armature which can be actuated by an electromagnet and which can be displaced by applying a predefinable control voltage against the pressure of a first spring into a tightened position (switch-on position of the undervoltage release).
  • the tappet-shaped magnet armature acts on a pawl formed as a reversing lever, which holds in the tightened position of the magnet armature acted upon by a second spring and connected to a trigger slide release lever.
  • the plunger-shaped magnet armature is displaced outward by the pressure of the first spring and pivots the pawl, which releases the release lever. This then shifts the trigger slider under the action of the second spring and thereby activates the circuit breaker.
  • a disadvantage of this known undervoltage release inter alia, that the undervoltage release, e.g. after the release of the circuit breaker can only be turned on when the corresponding control voltage is already applied to the solenoid. Otherwise, the plunger-shaped magnet armature continues to press against the pawl and holds it in its release position, so that a latching of the release lever with the pawl is not possible.
  • the invention has for its object to provide an undervoltage release, which can also be moved in the direction of closed position when no control voltage applied to the solenoid.
  • a triggering of the circuit breaker by the undervoltage release should during power-up only be possible if an additional mechanical release of the undervoltage release occurs, the time of release is largely arbitrary preselected.
  • the undervoltage release comprises a pivotable control lever acted upon by a third spring, which is designed as a release lock.
  • the control lever presses against the pawl which holds the release lever, wherein the spring forces and the latched in abutment surfaces of the cooperating lever arms are selected such that a release of the undervoltage release is not possible. If, in contrast, the control lever is pivoted and thus the trigger lock is released, the pawl and the release lever only latched together when a sufficiently large control voltage is applied to the solenoid. Otherwise, the circuit breaker trips again.
  • control lever is designed such that it engages in the intended use of the undervoltage release in a shift gate of the circuit breaker and is pivoted when turning on the circuit breaker such that a first lever arm of the control lever releases a second lever arm of the pawl before the Circuit breaker is in its switching position "ON".
  • the release lever on its side facing away from the trigger slide on a stop for a arranged on the shift gate of the circuit breaker clamping cam, so that when pivoting the shift gate in the switching position "OFF" of the circuit breaker of the clamping cam, the release lever is pivoted until it engages with the pawl.
  • FIGs. 1 and 2 1 denotes an undervoltage release, which is fixed to a non-illustrated in detail low-voltage circuit breaker.
  • the circuit breaker comprises a switching gate 3 provided with a lever 2, by means of which the circuit breaker can be pivoted from its switch position "OFF" (FIG. 1) into its switch position “ON” (FIG. 2).
  • the undervoltage release 1 has an actuatable by an electromagnet 4 stö-shaped magnet armature 5, which is acted upon by a first spring 6 designed as a compression spring.
  • the magnet armature 5 acts via spring-loaded lever-shaped transmission members 7, 8 on a trigger slide 9, which cooperates with a tripping shaft of the circuit breaker, not shown, so that the tripping shaft causes the triggering of a switching mechanism, not shown, and the opening of connected to the switch lock, also not shown contacts ,
  • the lever-shaped transmission members is a pivotable pawl 7 designed as a lever
  • the first lever arm 10 is connected to the plunger-shaped armature 5 and the second lever arm 11 with a push rod 12
  • a trigger lever 8 which actuates the trigger slide 9, on its the push rod 12 facing side has a recess 14 (Fig. 2), in which engages the push rod 12 in the closed position of the undervoltage release 1 (Fig. 1).
  • the release lever 8 is acted upon by a trained as a tension spring second spring 15.
  • the undervoltage release 1 further comprises a pivotable control lever 16 designed as a reversing lever, which is acted upon by a third spring 17 configured as a compression spring.
  • the first lever arm 18 of the control lever 16 and the third spring 17 are designed such that in the initial position shown in Fig. 1 of the control lever 16, in which the circuit breaker in its open position and the undervoltage release are in its closed position, the first lever arm 18th presses against the push rod 12 of the pawl 7 and thus the pawl 7 and the release lever 8 also remain in their Verklinkungswolf when no control voltage applied to the electromagnet 4.
  • the release lever 8 is pivoted abruptly substantially as a result of the tensile force of the second spring 15 after release of the push rod 12 by the control lever 16.
  • the release lever 8 thereby shifts the release slide 9 (FIG. 2), so that it no longer acts on the release shaft of the circuit breaker and causes an empty circuit of the circuit breaker.
  • the lever 2 of the circuit breaker is pivoted to the switching position 0.
  • the second lever arm 19 of the control lever 16 is released and the first lever arm 18 presses with the force of the spring 17 at the same time the second lever arm 19 of the control lever 16 is released the push rod 12, which rolls on the release lever 8.
  • the release lever 8 is pivoted so long until the push rod 12 engages in the recess 14 of the release lever 8.
  • the pawl 7 is pivoted and the magnet armature 5 is pressed by the first lever arm 10 in its closed position. Since in this position the shift gate 3 is also the control lever 16 is back in its initial position (Fig. 1), its first lever arm 10 secures the now reached Verklinkungs ein pawl 7 and release lever. 8
  • the invention is of course not limited to the illustrated embodiment.
  • the first part lever can be used only to control the trip slider and the second part lever only for latching with the pawl, wherein the tension spring 15 acts on the bow-shaped connecting part between the two partial levers.
  • a plurality of mutually parallel tension springs can act on the release lever.
  • a first connecting part is advantageously arranged in the region of the first lever arm, which engages in a corresponding recess of the tappet-shaped magnet armature.
  • the push rod can then be provided as a second connecting part be engaged when locking the release lever in the recess of the corresponding partial lever of the release lever.
  • a third spring instead of a pull and a compression spring can be used when the corresponding spring is arranged on the trigger slide side facing.
  • the pawl is provided with a push rod which engages in the recess 14 of the release lever 8 for latching the two levers, but the pawl can also be designed according to its end facing the release lever itself or with a bolt-shaped Part be provided.

Claims (5)

  1. Déclencheur à manque de tension pour interrupteurs électriques de protection contre la basse tension électrique, comprenant une armature (5) en forme de poussoir actionnable par un électroaimant (4) et déplaçable vers une position de travail en appliquant une tension de commande prescriptible à l'encontre de la pression d'un premier ressort (6), l'armature (5) agissant par des éléments de transmission (7, 8) en forme de leviers et chargés par ressort sur un curseur de déclenchement (9) de manière à ce qu'en cas de non-atteinte de la tension de commande, le curseur de déclenchement (9) provoque un déclenchement de l'interrupteur de protection et que les éléments de transmission en forme de leviers (7, 8) se composent d'un cliquet d'arrêt pivotable (7) et d'un levier de déclenchement pivotable (8) qui active le curseur de déclenchement (9) et est sollicité par au moins un deuxième ressort (15), le cliquet d'arrêt (7) coopérant avec l'armature en forme de poussoir (5) et avec le levier de déclenchement (8) de manière à ce qu'en position de travail de l'armature (5), le cliquet d'arrêt (7) puisse s'encliqueter avec le levier de déclenchement (8), caractérisé en ce qu'il est réalisé un levier de commande (16), couplé en mouvement à un coulisseau de commutation (3) actionné à la main, chargé par un troisième ressort (17) et pouvant pivoter d'une position initiale vers une position de libération, qu'en position initiale, le levier de commande (16) est poussé par le troisième ressort (17) contre le cliquet d'arrêt (7) lorsque le levier de déclenchement (8) se trouve en position encliquetée, que le levier de commande (16) maintient le cliquet d'arrêt (7) et le levier de déclenchement (8) dans cette position et qu'en position de libération, il n'y a plus de soutien du cliquet d'arrêt (7) et du levier de déclenchement (8).
  2. Déclencheur à manque de tension selon la revendication 1, caractérisé en ce que le levier de déclenchement (8) est composé de deux parties de levier disposés parallèlement l'une à l'autre qui sont reliées entre elles par une pièce de liaison en forme d'étrier, que le curseur de déclenchement (9) est disposé sur la première partie de levier et que la deuxième partie de levier est en liaison fonctionnelle avec le cliquet d'arrêt (7).
  3. Déclencheur à manque de tension selon la revendication 1 ou 2, caractérisé en ce que le cliquet d'arrêt (7) est composé de deux parties de levier reliées entre elles par des pièces de liaison, qu'une pièce de liaison disposée au niveau du premier bras de levier (10) est réalisée dans un évidement correspondant de l'armature en forme de poussoir (5) et qu'une pièce de liaison disposée au niveau du deuxième bras de levier (11) est réalisée sous forme d'une barre à pression (12) qui, lors de l'encliquetage du levier de déclenchement (8), s'engrène dans un évidement correspondant (14) du levier de déclenchement (8).
  4. Déclencheur à manque de tension selon une des revendications 1 à 3, caractérisé en ce que le levier de commande (16) est réalisé de manière à ce qu'en cas d'utilisation conforme à la destination du déclencheur à manque de tension (1), il s'engrène dans un coulisseau de commutation (3) de l'interrupteur de protection et, à l'activation de l'interrupteur de protection, il pivote de sa position initiale vers sa position de libération, de sorte qu'un premier bras de levier (18) du levier de commande (16) libère un deuxième bras de levier (11) du cliquet d'arrêt (7).
  5. Déclencheur à manque de tension selon la revendication 4, caractérisé en ce que le levier de déclenchement (8) présente, sur sa face détournée du curseur de déclenchement (9), une butée (12) pour une came de tension (20) disposée sur le coulisseau de commutation (3) de l'interrupteur de protection et contre laquelle ce dernier appuie lors de la désactivation de l'interrupteur de protection et encliquette le levier de déclenchement (8) avec le cliquet d'arrêt (7) à l'encontre de la pression du deuxième ressort (15).
EP19990122990 1998-11-23 1999-11-19 Déclencheur à manque de tension Expired - Lifetime EP1005060B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853901 1998-11-23
DE1998153901 DE19853901C1 (de) 1998-11-23 1998-11-23 Unterspannungsauslöser

Publications (3)

Publication Number Publication Date
EP1005060A2 EP1005060A2 (fr) 2000-05-31
EP1005060A3 EP1005060A3 (fr) 2001-07-11
EP1005060B1 true EP1005060B1 (fr) 2006-06-21

Family

ID=7888664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990122990 Expired - Lifetime EP1005060B1 (fr) 1998-11-23 1999-11-19 Déclencheur à manque de tension

Country Status (2)

Country Link
EP (1) EP1005060B1 (fr)
DE (1) DE19853901C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2620970A1 (fr) 2012-01-26 2013-07-31 Eaton Industries GmbH Entraînement à distance doté d'un élément extensible

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4110769B2 (ja) * 2001-08-27 2008-07-02 三菱電機株式会社 回路遮断器
DE10145059C1 (de) * 2001-09-13 2003-03-13 Moeller Gmbh Schaltgerät
DE10320681B4 (de) * 2003-04-30 2006-10-19 Siemens Ag Schaltschloss zum Verklinken einer Schaltwelle und elektrischer Schalter mit einem derartigen Schaltschloss
EP2426691B1 (fr) * 2010-09-06 2015-11-04 ABB Technology AG Dispositif de contournement mécanique

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE255819C (fr) *
FR2704090B1 (fr) * 1993-04-16 1995-06-23 Merlin Gerin Declencheur auxiliaire pour disjoncteur.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2620970A1 (fr) 2012-01-26 2013-07-31 Eaton Industries GmbH Entraînement à distance doté d'un élément extensible

Also Published As

Publication number Publication date
EP1005060A2 (fr) 2000-05-31
EP1005060A3 (fr) 2001-07-11
DE19853901C1 (de) 2000-06-15

Similar Documents

Publication Publication Date Title
EP1203385B1 (fr) Ensemble coupe-circuit multipolaire pour jeux de barres collectrices
DE69931109T2 (de) Leistungsschalter mit hoher elektrodynamischer Festigkeit und Ausschaltleistung
DE69930494T2 (de) Auslöseeinrichtung für einen leistungsschalter mit fehlermeldefunktion
DE10320681B4 (de) Schaltschloss zum Verklinken einer Schaltwelle und elektrischer Schalter mit einem derartigen Schaltschloss
DE1588258A1 (de) Mit Strombegrenzung arbeitender Stromunterbrecher
EP1005060B1 (fr) Déclencheur à manque de tension
EP2634788A1 (fr) Disjoncteur avec serrure de verrouillage
EP0956579B1 (fr) Commutateur a declencheur auxiliaire a minimum de tension
DE3119165C2 (de) Selbstschalter als Baueinheit aus einem Leitungsschutzschalter sowie Hilfs- und Signalschaltern
EP0956576A2 (fr) Appareil de commutation avec position de declenchement du mecanisme de verrouillage
DE3212474C2 (de) Überstromschutzschalter
DE7413707U (de) Elektrische Schaltvorrichtung
DE19636109C1 (de) Leistungsschalter mit ankoppelbarem Hilfsschalter
DE2914743C2 (de) Fehlerstromschutzschalter
EP1866942B1 (fr) Ensemble coupe-circuit a interrupteur
EP0956577B1 (fr) Mecanisme de verrouillage d'un commutateur
DE4122268C2 (fr)
DE4339425B4 (de) Schaltschloß für einen Fehlerstromschutzschalter
DE19507605C1 (de) Verklinkungseinrichtung für elektrische Schalter
DE3530635C2 (fr)
DE10218526B4 (de) Schaltgerät
DE1005163B (de) Schaltmechanismus fuer elektrische Selbstschalter
EP0127784A1 (fr) Disjoncteur de surintensité
DE1590524C (de) Schaltmechanismus fur elektrische Schalter, insbesondere Installationsselbst schalter
DE10344318B3 (de) Elektrischer Schalter

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH FR GB IT LI

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020105

AKX Designation fees paid

Free format text: CH FR GB IT LI

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH FR GB IT LI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 20060621

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20060923

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20061130

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070322

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20081122

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20081113

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20081117

Year of fee payment: 10

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20091119

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100730

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091119