EP0865661B1 - Ensemble contacteurs de securite - Google Patents

Ensemble contacteurs de securite Download PDF

Info

Publication number
EP0865661B1
EP0865661B1 EP96946017A EP96946017A EP0865661B1 EP 0865661 B1 EP0865661 B1 EP 0865661B1 EP 96946017 A EP96946017 A EP 96946017A EP 96946017 A EP96946017 A EP 96946017A EP 0865661 B1 EP0865661 B1 EP 0865661B1
Authority
EP
European Patent Office
Prior art keywords
contactors
safety combination
combination according
contactor safety
contactor
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
EP96946017A
Other languages
German (de)
English (en)
Other versions
EP0865661A2 (fr
Inventor
Erwin Flierl
Richard Freitag
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
Original Assignee
Siemens AG
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 filed Critical Siemens AG
Publication of EP0865661A2 publication Critical patent/EP0865661A2/fr
Application granted granted Critical
Publication of EP0865661B1 publication Critical patent/EP0865661B1/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
    • H01H3/001—Means for preventing or breaking contact-welding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/32—Latching movable parts mechanically
    • H01H50/323—Latching movable parts mechanically for interlocking two or more relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/001—Means for preventing or breaking contact-welding
    • H01H2003/002—Means for preventing or breaking contact-welding with lockout, e.g. two contact pairs in series
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/002—Monitoring or fail-safe circuits
    • H01H47/004—Monitoring or fail-safe circuits using plural redundant serial connected relay operated contacts in controlled circuit

Definitions

  • the invention relates to a contactor safety combination with a restart lock by mutual locking the shooter.
  • Contactor safety combinations of the generic type are considered electrical Circuits known. They usually consist of three Auxiliary contactors or relays. A contactor K1 the position of the contactors K2 and K3 queried before switching on according to the circuit shown in FIG 8. Im trouble-free Operation will be the release group consisting of Series connection of NC contacts K1, NO contacts K2 and NO contacts K3, switched through by NC contact K1. Safe shutdown even in In the event of a fault, the make contact K2 and K3 guaranteed. The functionality of these versions is by an electrical lock or position query the K1, K2 and K3 contactors are guaranteed. Characteristic for the embodiment is a high wiring effort. To avoid wiring errors, the main part the necessary wiring via a printed circuit board realized. The quality of the enabling current path on the circuit board determines the permissible current. This is known Contactor safety combinations below the permissible Current of single contactors.
  • DE 24 40 361 B2 discloses a locking module, who connects two contactors via their switching heads.
  • the locking module does not act as a restart lock in the fault state of one of the two contactors, but to ensure that during normal operation in Switching state "ON" of the one contactor forced this other contactor is in the "OFF" switching state.
  • a relay is prevented from being switched on again DE 36 02 692 Al known.
  • the restart lock of one two contact arrangements simultaneously by means of a switching finger switching relay is realized here.
  • On the two Movable contacts of the contact arrangements engage a common one Switching element on which a pointer is formed. Its free end lies in the path of the shift finger, when both movable contacts in the same position stand.
  • the pointer and the shift finger are so narrow that the operating surface of the pointer outside the Trajectory of the shift finger is when the switching element due to different position of the two movable Contacts, i.e. when gluing one of the contacts, pivoted is.
  • the invention has for its object a contactor safety combination of the above type to create the is inexpensive and simple to use Sagittarius of any size and with only two shooters gets along.
  • the object is achieved according to the features Claim 1 solved.
  • the advantage of this solution is that any size contactors can be switched, and that it is also possible to switch powerful consumers. Standard shooters can be used in conjunction with the Locking module from the customer to a contactor safety combination be assembled together.
  • the solution is suitable for both AC and DC contactors.
  • 1 shows the position of contactors 1 and 3 before switching on in undisturbed condition.
  • Each of the two shooters 1 or 3 has a first contact carrier 2 or a second Contact carrier 4, through which - as indicated - make contacts 15 or 16 are switchable.
  • the contact carrier 2 or 4 have projections 6 through a recess 7 in the project through the respective housing wall 8 of the contactors 1 and 3 and are provided at the end with a round pin 17.
  • the recesses 7 are dimensioned so that the formations 6 on the contact carriers 2 and 4 when switching on Normally open contacts 15 and 16 can move freely in them.
  • the locking module 5 comprises a heart-shaped coupling element 9, the tip of which is designed as a nose-shaped projection 10 is, as well as two scissors crossed, rotatably mounted beams 12, which are directed towards the coupling element 9
  • the ends are pointed, while the opposite ends are connected to each other by a tension spring 13.
  • the locking components 9, 12, 13 are cuboid Housing 19 arranged. Through the two bars 12 is one Opening 11 is formed, in which the nose-shaped projection 10 of the Coupling element 9 dips when contactors 1 and 3 are switched on.
  • the coupling element arranged above the opening 11 9 has slots 18 on both sides, into which the round pins 17 of the projections 6 of both contactors 1 and 3 inserted are. This results in pivot bearings via which the coupling element 9 held and rotatable about its center of gravity.
  • Stops 20 are provided, their function elsewhere is described.
  • the disturbed State is based on welding one of the NO contacts 15 or 16, in the present case a NO contact 16 of the second protection 3 is welded, so that the associated second contact carrier 4 is caught and the other first contact carrier 2 of the undisturbed first Protection 1 moves freely upwards.
  • the holder of the coupling element 9 via the pivot bearing 17, 18 enables such Movement in which the coupling member 9 rotates and its nose-shaped Projection 10 on the inside of one bar 12 slides along.
  • the one exercised on the beam 12 Pressure can be due to the rotatable mounting of the bar 12 in Connection with the tension spring 13 without problems, i.e. without damaging Stress are recorded.
  • FIG. 4 shows the position of the contact carriers 2 and 4 and the Coupling element 9 after completion of the switch-off process.
  • the nose-shaped projection 10 engages behind the tapered End of the beam 12 facing the undisturbed first protection 1 is, and at the same time lies on one of the stops 20 on.
  • the coupling element 9 blocked in this way is prevented a new activation of the first protection 1.
  • the second protection is also locked 3, after one of the normally open contacts 15 of the first protection 1 is welded. This means that a release is only possible occurs when from a trouble-free state, i.e. Not welded normally open contacts 15 or 16 turned on becomes.
  • FIG. 5 shows a circuit diagram of the contactor safety combination pictured.
  • the normally open contacts 15 and 16 of the contactors 1 and 3 are connected in series. As a result, even then be switched off if during or after switching on weld 1 or 3 NO contacts to one of the contactors.
  • the lock is designed so that the contactors are independent can open from each other. The error will appear the next time you turn it on reliably recognized.
  • the wiring effort is limited to direct control of the coils and the wiring of the enabling circuits. Through the protection-appropriate Wiring is a limitation of the data of the individual devices not necessary for the combination.
  • the locking module 5 can be between the shooters (see FIG. 6), on the front (FIG. 7) of the contactors, as also sit under the shooters.
  • the contactor safety combination described still has the advantage that with slight welding of a contactor there is a possibility that the second protection when trying switching off the welding.
  • Auxiliary switch, Blocks and other accessories can be used for the shooter as well be used before.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Abstract

L'invention concerne un ensemble contacteur de sécurité comprenant deux contacteurs (1, 3) et un composant de verrouillage (5) mécanique couplé entre les deux contacteurs. On peut utiliser des contacts courants et de dimensions quelconques, ce qui signifie que l'on peut aussi mettre en circuit des consommateurs puissants. Cette solution permet également de se dispenser d'un troisième contacteur traditionnellement utilisé pour le verrouillage.

Claims (9)

  1. Ensemble contacteur de sécurité comportant deux contacteurs (1, 3) et une protection contre les redémarrages intempestifs par verrouillage mutuel des contacteurs (1, 3), caractérisé par le fait que la protection contre les redémarrages intempestifs est mise en oeuvre par un composant de verrouillage (5) qui est assemblé, amovible, aux porte-contacts (2, 4) des contacteurs (1, 3).
  2. Ensemble contacteur de sécurité selon la revendication 1, caractérisé par le fait que l'assemblage amovible est conçu comme un assemblage par enfichage.
  3. Ensemble contacteur de sécurité selon la revendication 1 ou 2, caractérisé par le fait que les porte-contacts (2, 4) comportent chacun une partie (6) pour le couplage au composant de verrouillage (5) et que les parties (6) passent dans des trous (7) d'une paroi de boítier (8) des contacteurs (1, 3).
  4. Ensemble contacteur de sécurité selon l'une des revendications précédentes, caractérisé par le fait que le composant de verrouillage (5) comporte un élément de couplage (9) qui est couplé aux deux parties (6) et qui plonge par son avancée en forme de bec (10) dans une ouverture (11) d'un mécanisme de verrouillage (12, 13) lors de la mise en circuit des contacteurs (1, 3) dans leur état sans perturbation.
  5. Ensemble contacteur de sécurité selon la revendication 4, caractérisé par le fait que l'ouverture (11) est formée par deux barres (12) croisées en ciseaux, logées de manière à pouvoir tourner et reliées entre elles par un ressort de traction (13).
  6. Ensemble contacteur de sécurité selon l'une des revendications précédentes, caractérisé par le fait que l'élément de couplage (9) est maintenu par l'intermédiaire de paliers de pivotement (17, 18) sur les parties (6).
  7. Ensemble contacteur de sécurité selon l'une des revendications précédentes, caractérisé par le fait que, lors de la mise hors circuit des contacteurs (1, 3) après soudage de l'un des contacts (15 ou 16), l'élément de couplage (9) sort de l'ouverture (11) en tournant autour de son centre de gravité et passe derrière l'une des deux barres (12), ce qui bloque le mouvement de mise en circuit.
  8. Ensemble contacteur de sécurité selon l'une des revendications précédentes, caractérisé par le fait que les parties (6) sur les porte-contacts (2, 4) traversent les parois latérales de boítier (8) des contacteurs (1, 3) et sont couplées au composant de verrouillage (5) placé entre les contacteurs (1, 3).
  9. Ensemble contacteur de sécurité selon l'une des revendications précédentes, caractérisé par le fait que les contacteurs (1, 3) sont couplés entre eux par l'intermédiaire d'un composant de verrouillage (5) disposé sur leur avant.
EP96946017A 1995-12-06 1996-11-26 Ensemble contacteurs de securite Expired - Lifetime EP0865661B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19545540A DE19545540C2 (de) 1995-12-06 1995-12-06 Schützsicherheitskombination
DE19545540 1995-12-06
PCT/DE1996/002268 WO1997021238A2 (fr) 1995-12-06 1996-11-26 Ensemble contacteurs de securite

Publications (2)

Publication Number Publication Date
EP0865661A2 EP0865661A2 (fr) 1998-09-23
EP0865661B1 true EP0865661B1 (fr) 1999-08-18

Family

ID=7779365

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96946017A Expired - Lifetime EP0865661B1 (fr) 1995-12-06 1996-11-26 Ensemble contacteurs de securite

Country Status (5)

Country Link
US (1) US6054656A (fr)
EP (1) EP0865661B1 (fr)
CN (1) CN1063574C (fr)
DE (2) DE19545540C2 (fr)
WO (1) WO1997021238A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101246791B (zh) * 2007-02-12 2011-04-13 浙江正泰电器股份有限公司 具有机械互锁装置的低压电器
US8222548B2 (en) * 2008-07-30 2012-07-17 Generac Power Systems, Inc. Automatic transfer switch

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2359606A (en) * 1942-02-13 1944-10-03 Fed Electric Prod Co Electric switch with mechanical interlock
US2604796A (en) * 1950-09-08 1952-07-29 Westinghouse Electric Corp Interlock
US3391257A (en) * 1967-02-14 1968-07-02 Westinghouse Electric Corp Maintained-position interlocking mechanism for interlocking a pair of pushbutton switches
US3736538A (en) * 1972-03-28 1973-05-29 Westinghouse Electric Corp Electric control devices with mechanical interlock
US3953697A (en) * 1973-11-28 1976-04-27 Teichert Allen L Dual fulcrum switch
DE2440361B2 (de) * 1974-08-23 1977-01-27 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Mechanische verriegelung von beweglichen teilen
US4544814A (en) * 1984-01-19 1985-10-01 Eaton Corporation Mechanical interlock for contactors
DE3602692A1 (de) * 1986-01-30 1987-08-06 Ako Werke Gmbh & Co Wiedereinschaltsperre eines relais

Also Published As

Publication number Publication date
DE19545540A1 (de) 1997-06-12
CN1063574C (zh) 2001-03-21
US6054656A (en) 2000-04-25
DE19545540C2 (de) 1998-04-09
WO1997021238A3 (fr) 1997-08-14
CN1202267A (zh) 1998-12-16
DE59602825D1 (de) 1999-09-23
WO1997021238A2 (fr) 1997-06-12
EP0865661A2 (fr) 1998-09-23

Similar Documents

Publication Publication Date Title
EP1701369B1 (fr) Disjoncteur électromécanique
WO2006069956A1 (fr) Procede et dispositif pour assurer la securite de fonctionnement d'un appareil de distribution
DE10232375A1 (de) Mehrpoliger Schalter, Typ "Schaltschütz"
WO2006069960A1 (fr) Procede et dispositif pour faire fonctionner un appareil de commutation de maniere sure
EP0865661B1 (fr) Ensemble contacteurs de securite
EP0471893A2 (fr) Jeu de ressorts de contact pour des courants électriques forts
EP0963593B1 (fr) Entrainement a moteur
DE3937122C2 (de) Schaltungsanordnung mit Sicherheitsfunktion
EP0792512B1 (fr) Ensemble de securite a contacteurs
EP0678889B1 (fr) Combinaison de sécurité pour contacteurs
DE4306231C2 (de) Kontaktanordnung für einen Fehlerstromschutzschalter
WO1998038661A9 (fr) Entrainement a moteur
DE3432230C2 (fr)
EP0118389B1 (fr) Appareil de commutation électrique pour la surveillance et la commande de connexions de commutation
EP0146034B1 (fr) Dispositif pour débrancher des utilisateurs
DE602004001118T2 (de) Mikroschalter mit Funktionsänderung anhand der Blattfeder
WO2000067275A1 (fr) Unite coupe-circuit pour declenchement multipolaire
DE10151053B4 (de) Schaltungsanordnung
DE10004597A1 (de) Hilfsstromauslöser für Leitungs-, Fehlerstrom- und Motorschutzschalter
AT407207B (de) Elektrischer schutzschalter
DE357293C (de) Sterndreieckschalter
WO2001041166A2 (fr) Dispositif de commutation electrique
DE320494C (de) Selbsttaetige elektrische Schaltsicherung
DE3509034A1 (de) Anordnung zum abschalten von verbrauchern
DE3343906A1 (de) Anordnung zum abschalten von verbrauchern

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

17P Request for examination filed

Effective date: 19980519

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE FR LI

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

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: 19990129

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): CH DE FR LI

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: SIEMENS SCHWEIZ AG

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59602825

Country of ref document: DE

Date of ref document: 19990923

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: CH

Payment date: 20030207

Year of fee payment: 7

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: 20031130

Ref country code: CH

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

Effective date: 20031130

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: FR

Payment date: 20061122

Year of fee payment: 11

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

Ref country code: DE

Payment date: 20070122

Year of fee payment: 11

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: 20080603

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20080930

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: 20071130