[go: up one dir, main page]

EP0688031B1 - Interrupteur de puissance à organe de signalisation de l'état d'un accumulateur d'énergie - Google Patents

Interrupteur de puissance à organe de signalisation de l'état d'un accumulateur d'énergie Download PDF

Info

Publication number
EP0688031B1
EP0688031B1 EP95250139A EP95250139A EP0688031B1 EP 0688031 B1 EP0688031 B1 EP 0688031B1 EP 95250139 A EP95250139 A EP 95250139A EP 95250139 A EP95250139 A EP 95250139A EP 0688031 B1 EP0688031 B1 EP 0688031B1
Authority
EP
European Patent Office
Prior art keywords
power circuit
pressure finger
slide
display
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.)
Expired - Lifetime
Application number
EP95250139A
Other languages
German (de)
English (en)
Other versions
EP0688031A1 (fr
Inventor
Marc Liebetruth
Adolf Wihan
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.)
Siemens AG
Siemens Corp
Original Assignee
Siemens AG
Siemens Corp
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 Siemens AG, Siemens Corp filed Critical Siemens AG
Publication of EP0688031A1 publication Critical patent/EP0688031A1/fr
Application granted granted Critical
Publication of EP0688031B1 publication Critical patent/EP0688031B1/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
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor
    • H01H2003/3073—Indication of the charge on the spring motor

Definitions

  • the invention relates to an electrical circuit breaker with a drive device for switch contacts, an energy store for providing drive energy for closing and opening the switch contacts, and with a tensioning device having a rotatable tension shaft for the energy store and with a display element for the state of the energy store.
  • a circuit breaker of this type is known from US-A-4 301 342.
  • Different designs are known for the clamping device of such circuit breakers, which depend on how large the storage energy required for switching is. Accordingly, while it is possible with a relatively small storage energy to tension the energy store in a very short time, large energy stores require a longer time, both when tensioning by a motor drive and when tensioning by hand. This entails that the display device for the state of the energy store is actuated correspondingly slowly. This can cause the operator to make a mistake about the actual state of the energy store.
  • the invention is based on the object of causing a clear change in the position of the display device when the energy store is fully tensioned.
  • the use of a spring moved over the dead center has the advantage that a sudden actuation of the display element can be effected by a few and inevitably acting parts.
  • the abrupt behavior is not affected by wear or aging.
  • the lost motion clutch provided within the scope of the display device can have an inner part to be rigidly connected to the tensioning shaft and a hub part enclosing the inner part, the hub part carrying the crank arm with the pressure finger and a pin forming an abutment of the spring and having radial stop surfaces for driving surfaces of the inner part. Due to the simple design, the inner part and the hub part can be produced as molded parts made of plastic.
  • the tensioning shaft of the tensioning device may oscillate when the energy storage device is released.
  • An undesirable stress on the display device resulting therefrom can be avoided by providing the pressure finger and the ramp surface with undercuts such that, after the pressure finger has slid off the ramp surface when the hub part rotates, a limited relative backward rotation of the hub part is permitted.
  • the dead gear of the lost motion clutch can be dimensioned such that the sudden rotation of the pressure finger after the dead center position has been exceeded is limited to an angle of rotation required to actuate the indicator slide and that the indicator slide can be released by a slight further rotation of the tensioning shaft and the pressure finger when the energy store is discharged is. In this way, the transition from the "cocked" display to the "relaxed” display can also occur suddenly and thus clearly for the operator.
  • a return spring can either be attached directly to the indicator slide or to the indicator element actuated by the indicator slide.
  • the display device is to be accommodated in a space-saving manner in a circuit breaker in such a way that the display slide is guided on a side wall of a supporting structure receiving the tensioning device and is coupled to the display element by means of an actuating rod.
  • An advantageous possibility for guiding the indicator slide can be that the side wall has a guide slot aligned with its longitudinal direction for the movement of the indicator slide, and the indicator slide has a guide web provided for engaging in the guide slot, which has a cross piece provided for gripping through an extension of the guide slot is provided and that the distance of the extension from the tensioning shaft is less than the distance of the crosspiece from the tensioning shaft when the indicator slide is in its rest position corresponding to the relaxed state of the energy store.
  • Figures 1, 2, 3, 4 and 5 show in schematic representations the structure and operation of a display device for the state of an energy store, wherein Figure 1 shows the initial state with the spring loaded, Figure 2 shows an intermediate position with partially tensioned spring and the figure 3 shows the fully tensioned state of the spring accumulator. 4 shows a display element in the actuated state. FIG. 5 shows a state that currently only exists before the return to the initial state according to FIG. 1.
  • FIG. 6 shows an inner part of a lost motion clutch.
  • FIG. 7 shows a hub part which interacts with the inner part according to FIG. 6, the hub part and the inner part together forming the lost motion clutch.
  • FIG. 8 shows a slide indicator in a side view in connection with a side wall of a supporting structure shown in section.
  • FIG. 9 shows interacting guide parts of the slide indicator according to FIG. 7 and the side wall of the supporting structure.
  • a tension shaft 1 is part of a tensioning device for an energy store 2 designed as a compression spring, a tensioning device 3 arranged between the tensioning shaft 1 and the energy store 2 being shown only schematically to simplify the illustration.
  • the tensioning device 3 can comprise a cam disk seated on the tension shaft 1 and a toggle lever mechanism which is acted upon by the circumference of the cam disk by means of a roller seated in the knee joint.
  • a lost motion clutch 4 which is formed by an inner part 5 seated on the tensioning shaft 1 and a hub part 6 arranged concentrically thereto. Details of the lost motion clutch 4 will be explained later with reference to FIGS. 6 and 7.
  • the hub part 6 carries a crank arm 7 which ends in a pressure finger 10.
  • One end of a tension spring 11 is connected to the crank arm 7, the other end of which is supported on a stationary abutment 12.
  • An indicator slide 13 is displaceably guided relative to the tension shaft 1 and is biased in the direction of the tension shaft 1 by a return spring 14.
  • a display member 15 is connected to the display slide 13 in a suitable manner, which provides the user with symbols for the state of the energy store 2.
  • Switch contacts 16 can be actuated by the energy store 2, a switch lock 17 being arranged in the course of the power transmission.
  • the energy store 2 is relaxed.
  • the switch contacts 17 are open and the display element 15 shows a symbol 18 for the relaxed energy store. All the elements mentioned above are part of a circuit breaker, for example a low-voltage circuit breaker for a nominal current of 1000 A.
  • FIG. 3 shows a position of the tensioning shaft 1, which is rotated 90 ° clockwise relative to FIG. 2, so that the energy store 2 is now almost completely tensioned compared to the starting position according to FIG. This is again illustrated by the representation of the energy store 2 in FIG. 3.
  • the spring 11, which acts on the crank arm 7 is fully tensioned since the mechanical system consisting of the spring 11, the crank arm 7 and its mounting on the tensioning shaft 1 is in its dead center position. A very slight further rotation of the crank arm 7 clockwise until the energy store 2 is fully tensioned is therefore sufficient to jump the crank arm 7 with the pressure finger 10 from the position shown in FIG. 3 in the direction of arrow 19 into the position shown in FIG. 4.
  • crank arm 7 of the tensioning shaft 1 follows until the relatively relaxed dead center position of the spring 11 with respect to the crank arm 7 is reached.
  • the dead gear is then passed through at approximately 90 ° until the crank arm 7 is again carried along by the inner part 5 and the position according to FIG. 2 is reached.
  • the lost motion clutch includes an inner part 25 (FIG. 6) seated on the tensioning shaft 1, which engages with a coupling lug 26 in a corresponding groove of the tensioning shaft 1 in order to bring about a rotationally locking coupling.
  • the coupling lug 26 and two radial driver surfaces 27 are part of a coupling bracket 31 projecting axially from an annular body 30.
  • the hub part 32 shown in FIG. 7 has a bore 33 which is adapted to the diameter of the annular body 30 and is delimited by an axial stop surface 34 for the inner part 25 and a further, radially projecting part which has radial stop surfaces 35.
  • the radial stop surfaces 35 of the hub part 32 are spaced apart by a greater angle than the radial driving surfaces 27 of the inner part 25. Therefore, the inner part 25 and the hub part 32 are at an angle of approximately Can be rotated 90 ° relative to each other.
  • the hub part 32 is also provided with a crank arm 36 which ends in a rounded pressure finger 37. Laterally, the crank arm 36 carries a pin 38 for hanging the spring 11.
  • FIGS. 8 and 9 An exemplary embodiment for the attachment of a slide indicator is shown in FIGS. 8 and 9.
  • a side wall 40 which belongs to a supporting structure of a drive device of a low-voltage circuit breaker.
  • the indicator slide 41 is flat on the side wall 40 guided, namely by means of a guide web 42 projecting from the indicator slide 41, which engages in a corresponding guide slot 43 (FIG. 9) of the side wall 40.
  • the guide web 42 is provided with a crosspiece 44 which, after being introduced by a corresponding extension 45 of the guide slot 43 in the side wall 40, causes the display slide 41 to be held on the side wall 40.
  • the indicator slide 41 is secured against a release from the side wall 40.
  • suitable dimensioning of the distance between the extension 45 and the rest position of the cross piece 44 it is ensured that the indicator slide 41 on the side wall 40 only before the assembly of the inner part 25 and the hub part 32 on the tensioning shaft 1, (FIGS. 1 to 5) attach or remove.
  • FIG. 8 an eyelet 46 is shown at the lower end of the display slide 41, which is used to hang in an actuating rod 47 shown broken off.
  • the actuating rod 47 By means of the actuating rod 47, the movement of the indicator slide 41 is transmitted to the indicator element 50 which is attached to a suitable point on the control panel of the circuit breaker and which can be pivoted about a rotary bearing 51.

Landscapes

  • Breakers (AREA)

Claims (7)

  1. Interrupteur de puissance électrique comportant un dispositif de commande pour des contacts de commutation (16), comportant un accumulateur d'énergie (2) pour fournir de l'énergie de commande afin de fermer et d'ouvrir les contacts de commutation (16) et un dispositif tendeur (3) comportant un arbre tendeur (1) tournant et destiné à l'accumulateur d'énergie (2) ainsi qu'avec un organe indicateur (15) de l'état de l'accumulateur d'énergie (2),
       caractérisé par le fait que :
    - un bras coudé (7 ; 36) comportant un doigt de pression (10 ; 37) est agencé sur l'arbre tendeur (1) avec interposition d'un embrayage à mouvement à vide (4),
    - un ressort (11) est agencé entre le bras coudé (7 ; 36) et une butée fixe (12) et il a une direction d'action telle que le dépassement de la position de point mort du bras coudé (7 ; 36) correspond à la tension complète de l'accumulateur d'énergie (2), et
    - un curseur indicateur (13 ; 41) muni d'une surface inclinée (20) est guidé par rapport à l'arbre tendeur (1) de manière à pouvoir se déplacer de telle sorte que la surface inclinée (20) peut être soumise à l'action du doigt de pression (10 ; 37), lorsque le doigt de pression (10), sous l'action du ressort (11) en raison du mouvement à vide de l'embrayage à mouvement à vide (4), effectue une rotation dans la direction (17) de la surface inclinée.
  2. Interrupteur de puissance selon la revendication 1,
       caractérisé par le fait que l'embrayage à mouvement à vide (4) comporte une pièce intérieure (5 ; 25) à relier de manire rigide à l'arbre tendeur (1) et une pièce formant moyeu (6 ; 32) entourant la pièce intérieure (5 ; 25), la pièce formant moyeu (6 ; 32) porte le bras coudé (7 ; 36), le doigt de pression (10 ; 37) ainsi qu'un tenon (37) formant une butée du ressort (11) et comporte des surfaces d'arrêt (35) radiales pour des surfaces d'entraînement (27) de la pièce intérieure (5 ; 25).
  3. Interrupteur de puissance selon la revendication 2,
       caractérisé par le fait que le doigt de pression (10 ; 37) et la surface inclinée (20) présentent chacun une forme rentrante de telle sorte que, après le glissement du doigt de pression (10 ; 37) hors de la surface inclinée (20) lors de la rotation de la pièce formant moyeu (6 ; 32), une rotation en arrière relative et limitée de la pièce formant moyeu (6 ; 32) est autorisée.
  4. Interrupteur de puissance selon la revendication 1 ou 2,
       caractérisé par un dimensionnement du mouvement à vide de l'embrayage à mouvement à vide (4) tel que la rotation brusque du doigt de pression (10 ; 37) après le dépassement de la position de point mort est limitée à un angle de rotation nécessaire à l'actionnement du curseur indicateur (13 ; 41) et que le curseur indicateur (13 ; 41) peut être libéré par une légère rotation supplémentaire de l'arbre tendeur (1) et du doigt de pression (10 ; 37) s'effectuant lors de la décharge de l'accumulateur d'énergie (2).
  5. Interrupteur de puissance selon la revendication 4,
       caractérisé par le fait que le curseur indicateur (13 ; 41) est précontraint dans la direction de l'arbre tendeur (1) au moyen d'un ressort de rappel (14 ; 50).
  6. Interrupteur de puissance selon l'une des revendications précédentes,
       caractérisé par le fait que le curseur indicateur (41) est guidé sur une paroi latérale (40) d'un support recevant le dispositif tendeur (3) et est couplé à l'organe indicateur (50) au moyen d'une tige d'actionnement (47) .
  7. Interrupteur de puissance selon la revendication 6,
       caractérisé par le fait que la paroi latérale (40) comporte une fente de guidage (43) alignée dans le sens de sa longueur sur le mouvement du curseur indicateur (41), que le curseur indicateur (41) comporte une traverse de guidage (42), qui est prévue pour pénétrer dans la fente de guidage (43) et qui est munie d'une pièce transversale (44) prévue pour traverser un élargissement (45) de la fente de guidage (43), et que la distance de l'élargissement (45) à l'arbre tendeur (1) est plus petite que la distance de la pièce transversale (44) à l'arbre tendeur lorsque le curseur indicateur (41) se trouve dans sa position de repos correspondant à l'état détendu de l'accumulateur d'énergie (2).
EP95250139A 1994-06-17 1995-06-12 Interrupteur de puissance à organe de signalisation de l'état d'un accumulateur d'énergie Expired - Lifetime EP0688031B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4422302 1994-06-17
DE4422302A DE4422302C1 (de) 1994-06-17 1994-06-17 Leistungsschalter mit einem Anzeigeorgan für den Zustand eines Energiespeichers

Publications (2)

Publication Number Publication Date
EP0688031A1 EP0688031A1 (fr) 1995-12-20
EP0688031B1 true EP0688031B1 (fr) 1997-09-03

Family

ID=6521517

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95250139A Expired - Lifetime EP0688031B1 (fr) 1994-06-17 1995-06-12 Interrupteur de puissance à organe de signalisation de l'état d'un accumulateur d'énergie

Country Status (2)

Country Link
EP (1) EP0688031B1 (fr)
DE (2) DE4422302C1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006006907A1 (de) * 2006-02-09 2007-08-16 Siemens Ag Anordnung insbesondere zum Betätigen einer Transportklinke und Spannvorrichtung für einen Federspeicher eines elektrischen Schalters mit einer derartigen Anordnung
CN115424881B (zh) * 2022-09-16 2025-08-19 重庆德普电气有限公司 合闸指示装置及隔离开关

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4135072A (en) * 1977-08-23 1979-01-16 Westinghouse Electric Corp. Circuit breaker having opening spring position indicator
US4238657A (en) * 1978-07-06 1980-12-09 S&C Electric Company Switch operator condition and position indicator mechanism
JPS55108119A (en) * 1979-02-13 1980-08-19 Tokyo Shibaura Electric Co Motorrdriven spring operating device for circuit breaker
US4301342A (en) * 1980-06-23 1981-11-17 General Electric Company Circuit breaker condition indicator apparatus
DE9415212U1 (de) * 1994-09-07 1994-11-03 Siemens AG, 80333 München Leistungsschalter mit einer eine Kurvenscheibe aufweisenden Spannvorrichtung für einen Energiespeicher

Also Published As

Publication number Publication date
DE4422302C1 (de) 1995-08-03
DE59500584D1 (de) 1997-10-09
EP0688031A1 (fr) 1995-12-20

Similar Documents

Publication Publication Date Title
DE3689683T2 (de) Betätigungsmechanismus für einen Schalter mit einer Energiespeichervorrichtung.
EP1913614B1 (fr) Interrupteur de puissance
DE3407868A1 (de) Elektromagnetische einrichtung, insbesondere zur kontaktbetaetigung
WO2013079328A1 (fr) Mécanisme de verrouillage pour un poussoir d'enclenchement d'un disjoncteur
EP0466287B1 (fr) Disjoncteur avec un dispositif d'encliquetage indépendant du contact mobile
DE2250738A1 (de) Loesbare stromabnehmervorrichtung fuer eine einen im wesentlichen u-foermigen querschnitt aufweisende stromschiene
DE10013160B4 (de) Schaltwelleneinheit für einen Schalter
DE2633218C3 (de) Antriebsmechanismus für die Kontaktbewegung in einem Leistungsschalter
EP0956579B1 (fr) Commutateur a declencheur auxiliaire a minimum de tension
DE102010019741B4 (de) Schaltmechanik für einen Fehlerstromschutzschalter sowie Fehlerstromschutzschalter
EP0688031B1 (fr) Interrupteur de puissance à organe de signalisation de l'état d'un accumulateur d'énergie
WO1998034256A2 (fr) Appareil de commutation avec position de declenchement du mecanisme de verrouillage
EP0398461A2 (fr) Disjoncteur avec un dispositif de commande et de verrouillage pour un contact mobile
EP0508041B1 (fr) Commande de commutation pour appareils électriques à moyenne tension
DE19717236C2 (de) Elektrisches Schaltgerät
DE69516790T2 (de) Mittelspannungsschalter oder Schutzschalter
EP0956578A2 (fr) Commutateur a fermeture rapide
DE3114727C2 (fr)
DE130208T1 (de) Schalter mit bedientem oeffnen und schliessen und mit automatischer oeffnung im fall einer ueberspannung.
DE2760268C1 (de) Schaltkraftverstaerker
DE19839252A1 (de) Schaltmechanismus für Schutzschalter
DE102005050693A1 (de) Verklinkungsvorrichtung für einen Leistungsschalter
DE19740422A1 (de) Strombegrenzender Niederspannungs-Leistungsschalter
DE4008506C2 (de) Verfahren zur Ansteuerung der Schaltbewegung eines elektrischen Schalters und elektrischer Schalter
EP1913613B1 (fr) Dispositif accumulateur d'energie de mise en circuit

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: A1

Designated state(s): DE FR IT

17P Request for examination filed

Effective date: 19960119

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19970211

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR IT

REF Corresponds to:

Ref document number: 59500584

Country of ref document: DE

Date of ref document: 19971009

ITF It: translation for a ep patent filed
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
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20000620

Year of fee payment: 6

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

Ref country code: DE

Payment date: 20000817

Year of fee payment: 6

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: 20020228

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

Ref country code: DE

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

Effective date: 20020403

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;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.

Effective date: 20050612