EP0628981A1 - Schutzschaltgerät mit Betätigungsmechanismus - Google Patents

Schutzschaltgerät mit Betätigungsmechanismus Download PDF

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Publication number
EP0628981A1
EP0628981A1 EP94401192A EP94401192A EP0628981A1 EP 0628981 A1 EP0628981 A1 EP 0628981A1 EP 94401192 A EP94401192 A EP 94401192A EP 94401192 A EP94401192 A EP 94401192A EP 0628981 A1 EP0628981 A1 EP 0628981A1
Authority
EP
European Patent Office
Prior art keywords
pallet
lever
contacts
contact
circuit breaker
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.)
Withdrawn
Application number
EP94401192A
Other languages
English (en)
French (fr)
Inventor
Christian Blanchard
Didier Vigouroux
Michel Lauraire
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 SE
Original Assignee
Schneider Electric SE
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 SE filed Critical Schneider Electric SE
Publication of EP0628981A1 publication Critical patent/EP0628981A1/de
Withdrawn legal-status Critical Current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
    • H01H71/50—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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/008—Change of magnetic field wherein the magnet and switch are fixed, e.g. by shielding or relative movements of armature

Definitions

  • the present invention relates to a protective switch device provided with power poles, the movable contacts of which are carried by a contact carrier, of a protective assembly with magnetic and / or thermal tripping capable of detecting overloads or overcurrents on each pole current path and a control mechanism which can be operated by a manual control button, this mechanism comprising a magnetic lever with permanent magnet cooperating on the one hand with a magnetizable pallet for operating the contacts and on the other hand a magnetizable trigger pallet whose movement is controlled by the protection assembly.
  • Protection switch devices have a contact bridge that can be moved relative to the fixed contacts.
  • a magnetic and / or thermal tripping assembly may cause the contacts to open.
  • This trigger assembly acts on the contacts by means of a control mechanism (also called a "lock") which can also be actuated manually by a manual control button.
  • a contactor-circuit breaker comprises, for moving the contacts, manual control means, magnetic and / or thermal trip members for automatic control on fault and a normal automatic control electromagnet.
  • a motor circuit breaker includes similar means for moving the contacts, but no electromagnet.
  • Magnetic type control mechanisms are described in French patent 1,464,396 and English patent 1,355,035. They include a permanent magnet which cooperates with an armature displaced by a trigger and with an armature integral with the movable contact. The approximation of the armature associated with the release releases the armature integral with the movable contact. To make a device with several poles, you need as many magnet mechanisms as there are poles.
  • the object of the present invention is to provide a magnetic type control mechanism capable of being mounted indifferently in a contactor-circuit breaker, a motor circuit breaker or other similar protective switch devices.
  • the invention also aims to cause an abrupt opening and closing of the contacts whatever the device on which the mechanism is mounted.
  • the apparatus according to the invention is characterized in that the mechanism includes means for controlling, by manual control, either the direct opening of the power contacts of a circuit breaker or the like, or, after turning the button manual control, the opening of an auxiliary contact making it possible to interrupt the current in the coil of the electromagnet controlling a contactor-circuit breaker or the like.
  • the mechanism comprises a rotary control shaft secured to the manual control button and around which the magnetic lever can pivot, which cooperates on one side with the triggering pallet and on the other side with the contact handling pallet .
  • control shaft is integral with a pendulum resiliently connected to a crank which can pivot freely around the control shaft and capable of actuating the coil contact.
  • the mechanism comprises a lock which can pivot around an axis and having a stop notch in which a pin for locking the magnetic lever can engage.
  • the control mechanism according to the invention is intended to equip a protective switch device of the contactor-circuit breaker type such as that of FIG. 1 or of the motor circuit breaker type such as that of FIG. 2.
  • Such an apparatus comprises one or more power poles 1 whose fixed and mobile parts supporting the separable contacts are associated with conductive paths. These poles are housed in a housing 2.
  • FIGS. 1 and 2 A single pole 1, of the double break type, is shown in FIGS. 1 and 2 so as to simplify the drawings.
  • conductors 3 connect the connection terminals to the fixed contacts, the associated mobile contacts being carried by a mobile contact bridge 4.
  • This contact bridge 4 cooperates with the fixed contacts to establish or interrupt the flow of current from power between the connection terminals.
  • a contact carrier assembly 5 carrying the contact bridges 4 slides in the housing, perpendicular to the plane passing through the fixed contacts.
  • a protective assembly 8 with magnetic and / or thermal tripping is housed in the housing to detect overloads or overcurrents on each current path associated with a pole.
  • this protective assembly 8 detects an overcurrent or overload on a current path, it controls, by means of a control mechanism 9 and a deflection lever 10, the opening of the movable contacts.
  • the contact carrier assembly 5 comprises a sliding support 6 and slides 7 guided in this sliding support and each capable of displacing in translation a contact bridge 4.
  • a pressure spring of the contacts tends to move each contact bridge 4 relative to the sliding support 6, in the closing direction of the contacts.
  • the deflector lifter 10 acts on the slider 7. It is noted that the connection between the lifter and the slider is unilateral, so that the lifter does not drive the slider in the closing direction.
  • An electromagnet 11 is housed in the housing 2 to move the contact carrier 5.
  • This electromagnet comprises a fixed magnetic circuit, a movable armature and a coil electrically connected to terminals by separable auxiliary contacts (called coil contacts).
  • the latter are controllable by the mechanism 9 or by manual action on the rotary control button 12 or, in the event of a fault, by the action of the protective assembly 8.
  • the movable armature of the electromagnet is subject to a return spring and moves a return beam 111 which is directly coupled to the support 6.
  • the contact carrier assembly 5 is therefore subjected to the return spring of the electromagnet. If the coil excitation stops, the return spring moves the assembly formed by the movable armature, the return beam 111 and the contact carrier assembly 5 to an open position ( open contacts).
  • the lifter 10 is linked to the upper end of the contact carrier 5 by means of an articulation, so as to drive this contact carrier in the opening direction and in the closing direction.
  • the control mechanism 9 is shown in detail in Figures 3 to 10. It is actuated in manual mode by a rotary control button 12 which is arranged on the front face of the housing. This mechanism has two plates fixed to the housing 2 and ensuring the support of the constituent parts.
  • the manual control button 12 is mounted integral with a control shaft 14 which is guided in rotation by the plates fixed to the housing. This control shaft 14 and the control button 12 can pivot so as to occupy three stable main positions: a "on" position (closed contacts), a "stop” position (open contacts) or an intermediate "tripped” position ( contacts open on default).
  • the button 12 is mounted in two 180 ° reversed positions depending on whether the mechanism is associated with a contactor-circuit breaker or with a motor circuit breaker. It includes a boss 121 which is active in motor circuit breaker mode by pushing a lever 18 and grooves 122, 123 which allow the guide of a pin 192.
  • the mechanism 9 comprises a magnetic lever 15 carrying a permanent magnet and two paddles made of soft magnetic material.
  • the magnetic lever 15 is pivotally mounted around the control shaft 14. It cooperates on one side with a tripping pallet 16 and on the other side with a pallet for operating the contacts 17.
  • the trigger pallet 16 made of soft magnetic material, is pivotally mounted, about an axis 161, relative to the support plates and it is subjected to a spring 28. It pivots between a "running” position where it is distant from the magnetic lever 15 and a “triggered” position where it is in contact with this magnetic lever.
  • the triggering pallet 16 is held in the "on” position by a locking keeper 13 capable of pivoting about an axis 131 in response to the triggering of the protection assembly 8. After being released from the keeper 13, the pallet 16 can pivot under the action of the spring 28 to come into the "tripped" position in contact with the magnetic lever 15.
  • the movement of the trigger pallet 16 is controlled by the protection assembly 8.
  • the trigger pallet 16 can be released from the keeper 13 by the protection assembly 8 so coming into contact with the magnetic lever 15.
  • the operating pallet 17, made of soft magnetic material, is pivotally mounted around the control shaft 14. It is capable of pivoting between an "on” position where it is in contact with the magnetic lever 15 and where it is therefore subjected to the attraction of the permanent magnet and a "triggered” or “stop” position where it is distant from this lever 15.
  • the control shaft 14 of the mechanism which carries the rotary button 12 for manual control is integral with a balance 22.
  • the assembly consisting of the balance 22, the shaft 14 and the control button 12 is connected by a spring of traction 23 to a crank 24 which can pivot freely, around the control shaft 14, between two positions.
  • the spring 23 is mounted between a finger 221 secured to the balance 22 and a finger 241 secured to the crank 24. This crank 24 can move a slider 29 carrying a coil contact 252.
  • the mechanism comprises a lock 20 which can pivot around an axis 201 and is provided with a bearing surface 202 and a stop notch 203 in which a locking pin 151 of the lever 15 can engage.
  • the mechanism comprises a lever 18 which is pivotally mounted around an axis 181.
  • the pivoting of the lever 18 causes the displacement of an intermediate part 21 articulated around an axis 211 and this part 21 acts on the operating pallet 17.
  • the lever 18 serves to ensure the opening positivity of the coil contact.
  • the intermediate piece 21 has a bearing surface 212 and is subjected to a spring 213.
  • a spring is mounted between the intermediate piece 21 and the lifter 10.
  • the mechanism comprises a resetting sub-assembly of the opening pallet 16.
  • This sub-assembly comprises (FIG. 6) a resetting lever 19 which is pivotally mounted on an axis 153 of the lever 15 and can be moved in rotation, around of this axis 153, by a pin 192 on which the control button 12 acts through one or other of the grooves 122, 123.
  • a hook 26 is mounted by means of an articulation on a plate 27 capable of pivot around the shaft 14. This hook 26 serves to hold the pin 192 of the reset lever 19.
  • a pin 261 of the hook 26 is guided in a groove of a fixed support plate of the mechanism. This pin 261 makes it possible to control the movement of the hook 26 during movements of the plate 27 while ensuring the correct positioning of the pin 192 relative to the button.
  • the plate 27 is subjected to a spring acting according to the arrow 27F on an attachment point 271.
  • the magnetic lever 15 In the "on" position shown in FIG. 3, the magnetic lever 15 is immobilized in rotation by means of its locking pin 151 which is housed in the lock catch 20. The flux created by the magnet the magnetic lever 15 closes in the operating pallet 17 which is therefore linked to this lever 15 by a magnetic attraction force. The triggering pallet 16 is blocked by the locking keeper 13 in the "on” position. The movable contacts are applied against the fixed contacts (closing of the contacts) by the application of the part 21, biased by the spring 213, on the lifter 10.
  • the protective assembly 8 which has detected the fault, turns the locking strike 13. This releases the pallet 16 trigger which, under the effect of the spring 28, pivots and then sticks against the magnetic lever 15. The flux created by the magnet is distributed in the pallets 17 and 16. The force exerted by the magnet on the pallet maneuver 17 becomes weaker than the force of the spring 213 acting on the intermediate part 21. The maneuvering pallet 17 which is released comes off the lever 15, under the action of the spring 213. The intermediate part 21 by pivoting rotates by a projection 214 the deflector lifter 10 which moves the contact carrier assembly 5. The power contacts open.
  • the intermediate part 21 comes under the action of the spring 213 to strike the bearing surface 202 of the latch 20 by its bearing surface 212.
  • the latch 20 releases the magnetic lever 15 which remains retained by the triggering pallet 16 (FIG. 5).
  • the control button 12 is turned, in the direction F, which makes the tilting lever 18 pivot through the boss 121 belonging to the button 12.
  • the lever 18 rotates the intermediate piece 21.
  • the latter pushes the operating pallet 17 which comes off from the magnetic lever 15.
  • the intermediate piece 21 which is no longer in abutment with the pallet 17 and is released comes to push, under the effect of the spring 213, the deflector lifter 10, which moves the contact carrier 5 so as to open the contacts.
  • the button 12 rotates the reset lever 19 by means of the pin 192 to drive the magnetic lever 15 so that it is applied to the operating pallet 17.
  • the "on" position is that of FIG. 3, described above. It will be noted, with reference to FIG. 4, that the position of the button 12 is 180 ° from the position in the motor circuit breaker version. Furthermore, with reference to FIG. 4, the crank 24 acts, under the action of the spring 23, on the slide 29 so as to close the coil contact 251-252.
  • the intermediate piece 21 comes under the action of the spring 213 to strike the bearing surface 202 of the latch 20 by its bearing surface 212.
  • the latch 20 releases the magnetic lever 15 retained by the pallet 16 (FIG. 5).
  • the bolt 20 drives, by its range 204, the pin 241 of the crank 24. The latter pivots around the shaft 14 and drives the slide 29 which opens the coil contacts 251,252.
  • the control button 12 To pass from the "triggered" position (FIGS. 5 and 6) to the "OFF” position (FIG. 8), the control button 12 is turned which presses on the pin 192 and takes off the magnetic lever 15 from the pallet 16. The magnetic lever 15 will then seek the operating pallet 17 by the lever 19, by bracing. The button 12 rotates the reset lever 19 which resets the triggering paddle 16 on the locking strike 13. This reset of the triggering paddle 16 on the locking strike 13 is only carried out if the fault has disappeared.

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EP94401192A 1993-06-07 1994-05-30 Schutzschaltgerät mit Betätigungsmechanismus Withdrawn EP0628981A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9306968A FR2706220B1 (fr) 1993-06-07 1993-06-07 Appareil interrupteur de protection à mécanisme de commande.
FR9306968 1993-06-07

Publications (1)

Publication Number Publication Date
EP0628981A1 true EP0628981A1 (de) 1994-12-14

Family

ID=9447959

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94401192A Withdrawn EP0628981A1 (de) 1993-06-07 1994-05-30 Schutzschaltgerät mit Betätigungsmechanismus

Country Status (3)

Country Link
US (1) US5502426A (de)
EP (1) EP0628981A1 (de)
FR (1) FR2706220B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0766280A2 (de) * 1995-09-28 1997-04-02 Schneider Electric Sa Befehls- und Meldegerät für Schutzschalter

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2710113B1 (fr) * 1993-09-16 1995-12-22 Aerospatiale Barreau magnétique courbe ou rectiligne, formé d'aimants disjoints.
DE4404073A1 (de) * 1994-02-09 1995-08-10 Kloeckner Moeller Gmbh Niederspannungs-Leistungsschalter mit Relativ-Hilfsschalter
AUPQ672300A0 (en) 2000-04-05 2000-05-04 Nu-Lec Industries Pty Limited Isolating circuit breaker and circuit protection arrangement
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
US9711307B2 (en) 2014-10-29 2017-07-18 Schneider Electric USA, Inc. Magnetically driven trip mechanism for an overload relay
JP5835510B1 (ja) * 2014-11-10 2015-12-24 オムロン株式会社 リレー
JP6414453B2 (ja) 2014-12-05 2018-10-31 オムロン株式会社 電磁継電器
JP2016110843A (ja) 2014-12-05 2016-06-20 オムロン株式会社 電磁継電器
US10312044B2 (en) 2014-12-05 2019-06-04 Omron Corporation Electromagnetic relay
US10134551B2 (en) * 2016-09-21 2018-11-20 Astronics Advanced Electronic Systems Corp. Galvanically isolated hybrid contactor
DE102017220503B3 (de) * 2017-11-16 2019-01-17 Te Connectivity Germany Gmbh Doppelt unterbrechender Schalter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1464396A (fr) * 1965-01-21 1966-12-30 Schiele Verwaltungsgmbh Relais déclencheur magnéto-mécanique pour appareils de commande électrique ou analogues
GB1355035A (en) * 1970-02-27 1974-06-05 Wilcox Co Ltd Edward Electric circuit breakers
EP0237607A1 (de) * 1986-03-21 1987-09-23 Square D Company (Deutschland) Gmbh Schütz
EP0366519A1 (de) * 1988-10-27 1990-05-02 Telemecanique Durch den Zusammenbau von mehreren abnehmbaren Moduleinheiten hergestellte Sicherungsvorrichtung für Schaltgerät
DE4123563A1 (de) * 1990-07-16 1992-01-23 Terasaki Denki Sangyo Kk Leistungsschalter mit zwangsweiser kontakttrennung und selbsthaltung im kurzschlussfall

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2643503B1 (fr) * 1989-02-21 1991-05-10 Telemecanique Electrique Appareil contacteur a interrupteurs proteges
FR2685976A1 (fr) * 1992-01-07 1993-07-09 Telemecanique Mecanisme pour appareil interrupteur de courant.

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1464396A (fr) * 1965-01-21 1966-12-30 Schiele Verwaltungsgmbh Relais déclencheur magnéto-mécanique pour appareils de commande électrique ou analogues
GB1355035A (en) * 1970-02-27 1974-06-05 Wilcox Co Ltd Edward Electric circuit breakers
EP0237607A1 (de) * 1986-03-21 1987-09-23 Square D Company (Deutschland) Gmbh Schütz
EP0366519A1 (de) * 1988-10-27 1990-05-02 Telemecanique Durch den Zusammenbau von mehreren abnehmbaren Moduleinheiten hergestellte Sicherungsvorrichtung für Schaltgerät
DE4123563A1 (de) * 1990-07-16 1992-01-23 Terasaki Denki Sangyo Kk Leistungsschalter mit zwangsweiser kontakttrennung und selbsthaltung im kurzschlussfall

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0766280A2 (de) * 1995-09-28 1997-04-02 Schneider Electric Sa Befehls- und Meldegerät für Schutzschalter
FR2739487A1 (fr) * 1995-09-28 1997-04-04 Schneider Electric Sa Dispositif de commande et de signalisation pour appareil de protection
EP0766280A3 (de) * 1995-09-28 1998-01-28 Schneider Electric Sa Befehls- und Meldegerät für Schutzschalter
US5933065A (en) * 1995-09-28 1999-08-03 Schneider Electric Sa Control and signalling device for protective switching apparatus

Also Published As

Publication number Publication date
US5502426A (en) 1996-03-26
FR2706220A1 (fr) 1994-12-16
FR2706220B1 (fr) 1995-07-21

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