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EP0571258B1 - Schutzschaltgerät - Google Patents

Schutzschaltgerät Download PDF

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Publication number
EP0571258B1
EP0571258B1 EP93401255A EP93401255A EP0571258B1 EP 0571258 B1 EP0571258 B1 EP 0571258B1 EP 93401255 A EP93401255 A EP 93401255A EP 93401255 A EP93401255 A EP 93401255A EP 0571258 B1 EP0571258 B1 EP 0571258B1
Authority
EP
European Patent Office
Prior art keywords
lever
cocking
opening
axis
fact
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
EP93401255A
Other languages
English (en)
French (fr)
Other versions
EP0571258A1 (de
Inventor
Christian Blanchard
Michel Lauraire
Didier Vigouroux
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric Industries SAS
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 Schneider Electric Industries SAS filed Critical Schneider Electric Industries SAS
Publication of EP0571258A1 publication Critical patent/EP0571258A1/de
Application granted granted Critical
Publication of EP0571258B1 publication Critical patent/EP0571258B1/de
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
    • H01H71/2409—Electromagnetic mechanisms combined with an electromagnetic current limiting mechanism
    • 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
    • H01H71/56—Manual reset mechanisms which may be also used for manual release actuated by rotatable knob or wheel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02—Details
    • H01H73/04—Contacts
    • H01H73/045—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/06—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device
    • H01H89/08—Combination of a manual reset circuit with a contactor, i.e. the same circuit controlled by both a protective and a remote control device with both devices using the same contact pair

Definitions

  • the present invention relates to a protective switch device such as a circuit breaker, comprising at least one pole having at least one movable contact cooperating with a fixed contact and magnetic and / or thermal tripping means ensuring the protection against overloads and overcurrents and acting on a control mechanism operating said movable contact and capable of being actuated by a control button rotary rotating around a mechanism axis.
  • Protection switch devices such as contactors and circuit breakers include, for each pole, a contact bridge capable of being moved relative to the contacts fixed. In the event of an electrical fault on at least one of the poles, a magnetic and / or thermal tripping is likely to cause the opening of contacts.
  • This trigger mechanism acts on a control mechanism called lock described for example in document EP 114 542.
  • This control mechanism can also be actuated manually by a manual control button so as to move the movable contacts relative to the fixed contacts via a switch controlling the electromagnet.
  • the object of the present invention is to provide a control mechanism for an apparatus for protection such as contactor-circuit breaker whose design is simple and whose assembly is easy to do.
  • the constituent parts of the mechanism are limited.
  • the resetting of the mechanism is possible from “triggered” to “stop” or from “triggered” to “market”.
  • control mechanism includes a lever of opening the contacts pivoting around the axis of the mechanism, an arming lever pivoting around the axis of the mechanism (14) and capable of keep the opening lever in the running position where this assembly is immobilized by a lock, triggering means controlling the mechanical release of the opening lever with respect to the cocking lever, a balance attached to the button and acting on the movable contact and the coil contact and likely to pivot around the axis when operating the button from the on position to the off position and pivot under the action of the opening lever when it is released from the on position and allowing return the cocking lever and the opening lever to the position triggered in the on position.
  • the arming lever is associated with hooking means likely to ensure a connection in rotation with the opening lever.
  • the means hooking consist of a movable hook around the axis of mechanism.
  • the protection switch of the contactor-circuit breaker type, which is shown in FIG. 1, includes one or more poles 1 housed in a housing 2. Each pole 1 includes fixed and mobile parts supporting separable contacts.
  • FIG. 1 A single pole 1, of the double break type, is shown in FIG. 1.
  • This pole comprises conductors 3 connecting the connection terminals to the fixed contacts and a bridge movable contact 4 carrying the movable contacts.
  • the movable bridge 4 cooperates, by contact pads, with the fixed contacts to establish or interrupt the passage of a power current between the connection terminals.
  • This movable bridge 4 is mounted in a movable contact carrier assembly 5 which slides in the housing, perpendicular to the plane passing through the fixed contacts.
  • This contact carrier assembly 5 comprises a sliding support 6 and a slide 7 guided in a housing of this sliding support.
  • This slide 7 is integral in translation with the contact bridge 4. It is subjected to a contact pressure spring which tends to move the contact bridge 4 by relative to the sliding support 6, in the closing direction of the contacts.
  • the spring of pressure of the contacts works in compression, is supported on the sliding support 6 and pushes back, in the closing direction of the contacts, the slide 7 and the contact bridge 4.
  • a set 8 of magnetic and thermal trip is arranged on each path of current, in the housing 2.
  • This set 8 of magnetic and thermal trigger includes, for example, for each pole, a magnetic trigger and a trigger thermal.
  • the set 8 detects an overcurrent on the current path, it acts, via a control mechanism 9 and a deflector lifter 10, on the or the slides 7 for moving the contact bridges 4.
  • An electromagnet 11 is housed in the housing to actuate the contact carrier assembly 5. It includes a fixed magnetic circuit, a movable armature and a connected coil electrically to terminals by a switch. The latter can be ordered by mechanism 9 or by a rotary control button 12 capable of acting on the mechanism to open the contacts.
  • the armature of the electromagnet is subject to a return spring and cooperates with a lever 111 which is directly coupled to the sliding support 6.
  • the contact carrier assembly 5 is therefore subjected to the return spring of the electromagnet which tends to move it to the open position (contacts open).
  • An opening lever 20 is mounted to rotate freely around the mechanism axis 14. This opening lever 20 is subjected to an opening spring, not shown, which tends to do so rotate from the "on" position to the "tripped" position.
  • An arming lever 15 is guided in rotation along the axis of the mechanism 14 so as to pivot between a "on” position (figure 3) and a “tripped” position (figure 5).
  • This cocking lever 15 pivots from the “on” position to the “tripped” position to grip the opening lever 20 and returns from the "tripped” position to the "on” position with the opening lever 20.
  • the arming lever 15 is subject to a cocking mechanism composed of a cocking piece 16 pivotally mounted around a axis 161 and subjected to an arming spring 17.
  • the mechanical connection in rotation between the pivoting cocking lever 15 and the cocking piece 16 is effected by means of a training piece 18.
  • the arming piece 16 is unlocked by the opening lever 20 when the latter acts on the tilting latch 19.
  • a cocking hook 21 is pivotally mounted, around an axis 151, on the cocking lever 15 and is subjected to a return spring 22. It maintains this opening lever 20 in the “on” or “triggered” position.
  • the cocking hook 21 releases the opening lever 20 which is subjected to the opening spring acting on the deflector lifter 10. Consequently, the opening lever 20 pivots from the “on” position to the "tripped” position.
  • the lever opening 20 acts on the latch 19 to release the arming piece 16. This actuates the cocking lever 15 which pivots from the “on” position to the “tripped” position and comes to grip the opening lever 20, via the cocking hook 21.
  • the thermal trigger and the magnetic trigger of the assembly 8 act on a trigger mechanism capable of releasing the opening lever 20 from the cocking lever 15 so as to trigger the passage from the "on" position (FIG. 3) to the position "triggered” ( Figure 5).
  • This trigger mechanism acts on the arming hook 21 by means of a tilting pusher 25.
  • This tilting pusher 25 is pivotally mounted around the axis 161 and is subjected to a spring 26.
  • This spring 26 is mounted between a pin 252 of the pusher 25 and a pin 242 of the trigger lock 24. It tends to rotate the rocking push-button 25 in the opening direction of the cocking hook 21.
  • the trigger has a pivoting trigger lock 24 which can pivot around an axis 241, either under the action of the thermal trigger 81 or the trigger magnetic 82. By pivoting, the trigger lock 24 releases the rocking pusher 25 subjected to the action of a spring 26. The rocking pusher 25 opens the cocking hook 21 which releases the opening lever 20.
  • the tilting pusher 25 cooperates with a reset lever 32 pivotally mounted around the fixed axis 241 and connected by an axis 321 to the arming part 16.
  • This rearming lever 32 acts on an axis 251 of the rocking pusher 25 so as to reset it.
  • the axis of the mechanism 14 which carries the rotary button 12 for manual control is integral a balance 29.
  • the assembly consisting of the balance 29, the axis 14 and the button control 12 is connected by a tension spring 27 to a crank 28 which can pivot freely, around the axis of mechanism 14, between two positions.
  • Spring 27 is mounted between a pin 291 secured to the balance 29 and a pin 281 secured to the crank 28.
  • the plates 13a-13b are identical, are assembled symmetrically and the parts swivels of the lock are mounted between them. Most springs can be put in place after the parts and the plates are assembled which facilitates the assembly.
  • the thermal trip element 81 is mounted on a part 33 whose position by relative to the plate 13a-13b can be adjusted at the factory and by the customer.
  • the pendulum 29 actuated by the rotary button 12 ensures a forced opening of the coil contact and power contacts as well as the coil contact, going to the "off" position. This position can only be indicated if all the contacts are actually open.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)

Claims (6)

  1. Schutzschaltgerät wie beispielsweise ein Schützschalter, mit mindestens einem Pol (1), der mindestens einen mobilen, mit einem festen Kontakt (3) zusammenwirkenden Kontakt (4) aufweist, und mit magnetischen und/oder thermischen Auslösemitteln (8), die den Schutz gegen Überlasten oder Überströme gewährleisten und auf einen Steuermechanismus (9) wirken, der den besagten mobilen Kontakt (4) betätigt und von einem rotierenden, um eine Achse (14) des Mechanismus drehenden Steuerknopf (12) betätigt werden kann, dadurch gekennzeichnet, dass der Steuermechanismus (9) einen sich um die Achse (14) des Mechanismus drehenden Öffnungshebel (20) der Kontakte umfasst, sowie einen sich um die Achse (14) des Mechanismus drehenden Rückstellhebel (15), der den Öffnungshebel (20) in Ein-Position festhalten kann, wo diese Baugruppe durch einen Riegel (19) festgehalten wird, sowie Auslösemittel (8), die die mechanische Freisetzung des Öffnungshebels (20) in Bezug auf den Rückstellhebel (15) steuern, ein am Knopf (12) befestigtes Pendel (29), das auf den mobilen Kontakt (4) und den Spulenkontakt wirkt und sich um die Achse (14) drehen kann, wenn man den Knopf (12) aus der Ein-Position in die Aus-Position stellt, und sich unter der Aktion des Öffnungshebels drehen kann, wenn dieser aus der Ein-Position befreit ist, wodurch der Rückstellhebel (15) und der Öffnungshebel (20) aus der ausgelösten Position in die Ein-Position zurückversetzt werden können.
  2. Gerät nach Anspruch 1, dadurch gekennzeichnet, dass es ein sich um die Achse des Mechanismus drehendes Rückstellteil (16) umfasst, das von einer Rückstellfeder (17) beaufschlagt wird und dem drehenden Rückstellhebel (15) zugeordnet ist.
  3. Gerät nach einem der vorstehend genannten Ansprüche, dadurch gekennzeichnet, dass der Rückstellhebel (15) Einhakmitteln (21) zugeordnet, die eine Rotationsverbindung mit dem Öffnungshebel (20) gewährleisten können.
  4. Gerät nach Anspruch 3, dadurch gekennzeichnet, dass die Einhakmittel aus einem um die Achse (14) des Mechanismus herum mobilen Haken (21) bestehen.
  5. Gerät nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass der Riegel (19) das Festhalten des Rückstellteils (16) in Position « Ein » gewährleistet und das besagte Teil (16) unter der Einwirkung des Öffnungshebels (20) freisetzt, so dass der Rückstellhebel (15) den Öffnungshebel (20) in Auslöse-Position einhakt, um das Zurückholen dieser Baugruppe (15, 20) in Position « Ein » zu ermöglichen.
  6. Gerät nach einem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass es einen Schieber (25) umfasst, der den Öffnungshebel (20) vom Rückstellhebel (15) befreien kann, indem er unter der Aktion der magnetischen und/oder thermischen Auslösemittel (8) auf den Haken (21) wirkt.
EP93401255A 1992-05-22 1993-05-14 Schutzschaltgerät Expired - Lifetime EP0571258B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9206270A FR2691576B1 (fr) 1992-05-22 1992-05-22 Appareil interrupteur de protection.
FR9206270 1992-05-22

Publications (2)

Publication Number Publication Date
EP0571258A1 EP0571258A1 (de) 1993-11-24
EP0571258B1 true EP0571258B1 (de) 1999-09-15

Family

ID=9430073

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93401255A Expired - Lifetime EP0571258B1 (de) 1992-05-22 1993-05-14 Schutzschaltgerät

Country Status (4)

Country Link
US (1) US5339060A (de)
EP (1) EP0571258B1 (de)
DE (1) DE69326380T2 (de)
FR (1) FR2691576B1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5500630A (en) * 1994-10-13 1996-03-19 Square D Company Solid state overload relay mechanism
DE19617136C2 (de) * 1996-04-29 2000-05-11 Siemens Ag Schaltgerät
FR2799573B1 (fr) 1999-10-11 2001-12-14 Schneider Electric Ind Sa Mecanisme de commande de disjoncteur
DE102006055007A1 (de) * 2006-11-22 2008-05-29 Abb Ag Installationsschaltgerät mit einer Doppelunterbrechung
DE102008016036A1 (de) * 2008-03-28 2009-10-01 Abb Ag Installationsschaltgerät mit einer Doppelunterbrechung
US8476996B2 (en) * 2010-08-31 2013-07-02 Chih-Chuan Liang Bistable switching method and latching relay using the same
DE102011008831A1 (de) * 2011-01-19 2012-07-19 Abb Ag Istallationsschaltgerät
FR2999791B1 (fr) * 2012-12-18 2015-01-02 Schneider Electric Ind Sas Dispositif modulaire de commutation electrique comportant au moins un bloc de coupure unipolaire et ensemble de commutation comportant de tels dispositifs
CN103985619B (zh) * 2014-06-06 2017-01-25 佳一电气有限公司 Cps控制与保护开关电器
CN103996552B (zh) * 2014-06-06 2016-04-13 佳一电气有限公司 用于控制与保护开关的可自动回位电磁操作装置
US10002721B1 (en) * 2017-02-27 2018-06-19 Carling Technologies, Inc. Multiple contact circuit breaker

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4356368A (en) * 1980-05-01 1982-10-26 Mcgill Manufacturing Company, Inc. Auxiliary switch assembly for a power contactor
FR2538160B1 (fr) * 1982-12-20 1985-12-13 Telemecanique Electrique Appareil contacteur a actionnement electromagnetique controle et a ouverture automatique lors de l'apparition de surcharges
FR2625603B1 (fr) * 1987-12-30 1993-05-07 Telemecanique Electrique Appareil interrupteur electrique protege et son dispositif de fixation
GB2246909B (en) * 1990-07-16 1995-02-22 Terasaki Denki Sangyo Kk Circuit breaker including forced contact parting mechanism capable of self-retaining under short circuit condition
FR2669463B1 (fr) * 1990-11-15 1995-05-12 Telemecanique Interrupteur de protection.
US5241290A (en) * 1991-12-20 1993-08-31 Square D Company Compact circuit breaker

Also Published As

Publication number Publication date
EP0571258A1 (de) 1993-11-24
DE69326380D1 (de) 1999-10-21
US5339060A (en) 1994-08-16
DE69326380T2 (de) 1999-12-30
FR2691576B1 (fr) 1994-07-08
FR2691576A1 (fr) 1993-11-26

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