EP0486389A1 - Schutzschalter - Google Patents

Schutzschalter Download PDF

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Publication number
EP0486389A1
EP0486389A1 EP91403049A EP91403049A EP0486389A1 EP 0486389 A1 EP0486389 A1 EP 0486389A1 EP 91403049 A EP91403049 A EP 91403049A EP 91403049 A EP91403049 A EP 91403049A EP 0486389 A1 EP0486389 A1 EP 0486389A1
Authority
EP
European Patent Office
Prior art keywords
slide
window
bridge
support
contact
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.)
Granted
Application number
EP91403049A
Other languages
English (en)
French (fr)
Other versions
EP0486389B1 (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 SE
Original Assignee
La Telemecanique Electrique SA
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 La Telemecanique Electrique SA, Schneider Electric SE filed Critical La Telemecanique Electrique SA
Publication of EP0486389A1 publication Critical patent/EP0486389A1/de
Application granted granted Critical
Publication of EP0486389B1 publication Critical patent/EP0486389B1/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
    • 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
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • 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

Definitions

  • the present invention relates to a protective switch device, of the circuit breaker or contactor-circuit breaker type, comprising at least one pole with separable contacts with double break provided with a movable contact bridge, a movable support for the contact bridges housing them and a contact pressure spring associated with each bridge.
  • the control of the movement of the support is likely to cause the movement of the bridges; the bridges can move relative to the support to allow the contacts to be pressurized by means of the springs.
  • a magnetic and / or thermal tripping mechanism is capable of acting via a control part to cause the omnipolar opening of the contacts, for example by means of sliders.
  • mobile mounted in the support when the device is a contactor-circuit breaker, a voluntary opening or closing order of electrical or manual origin is likely to be exerted via another control part to cause the omnipolar opening of the contacts, for example by means of the aforementioned slides or a cage surrounding the support.
  • the object of the invention is in particular to provide, when the contacts are opened, and in particular in the case of an electrodynamic repulsion of the contacts, excellent insulation between the two breaking points of each pole of a circuit breaker.
  • Another purpose is to arrange the support of the contact bridges of a protective switch device in a space-saving manner and to allow the designer of the device to bring the fixed contacts of the same pole together, in order to reduce the dimensions of the device and the mass of the mobile bridge.
  • each contact bridge is made integral in translation with the corresponding slide.
  • an insulating surface of the slide can thus be interposed to be the fixed contacts of the pole and maintain between them a satisfactory isolation distance.
  • each slide is an independent part, in particular a light and insulating part carrying the respective contact bridge, so that this part has a range of insulation which appears in a window of the first support during an opening determined by the control part and / or during an electrodynamic repulsion of the contact bridge.
  • each contact bridge is mounted in the respective slide with a faculty of angular movement; the contact pressure spring is housed in a slider window away from the cut-off zone.
  • the circuit breaker illustrated in FIG. 1 is a contactor-circuit breaker comprising, in a housing 10, several mechanical poles, each of which comprises a movable contact bridge 11. Each bridge cooperates by respective contact pads with two fixed contacts 12, 13 connected to terminals 14, 15 to establish or interrupt the passage of a power current between these terminals.
  • a magnetic and thermal tripping assembly 16 is disposed on each current path in the housing.
  • the assembly 16 detects an overcurrent on the current path, it acts by means of a mechanism 17 provided with a pusher or of a lever 18 on a structure 30 for supporting and moving the contact bridges.
  • the lever 18 is applicable, as will be seen below, on an element of this structure.
  • the assembly 16 comprises for example for each pole a magnetic trigger and a thermal trigger.
  • the electromagnet comprises a fixed magnetic circuit 21, a movable armature 22 and a coil 23 electrically connected to terminals 24 by a switch 25; the latter is controllable by the mechanism 17 and / or by a button 26 capable of acting on the mechanism to open the contacts, in order to confirm an opening caused by the lever 18.
  • the armature 22 of the electromagnet is subject to a return spring 27 and cooperates with a lever 28 which is directly coupled to the structure 30.
  • the contact-carrying structure 30 comprises an omnipolar mobile support 31, contact bridges 11 and unipolar slides 32 housed in wells or slots 33 of the support and movable in these slots.
  • the support 31 is slidably mounted against walls 34a or partitions 34b of the housing (see FIG. 7). It has in particular slots 34c into which these partitions penetrate.
  • Each contact bridge 11 is housed sliding between a high stop 35 and a low position in a window 36 of the support 31, while a contact pressure spring 37, associated with the bridge, is also housed in the window to be in support on one end of it and on the deck.
  • the lever 28, which in this example is fork-shaped, is coupled by its ends 38 in lateral notches 39 of the support to form between the armature and the support a connection that is not stressed by the lever 18; thus, the lever 28 lifts the support when the coil 23 is supplied and lowers it under the action of the spring 27 when the coil is not supplied, to close and open all of the contacts, respectively. It can be seen that thus opening the contacts by the electromagnet does not require the compression of the springs 37.
  • each magnetic trip device of the assembly 16 can also cooperate with a lever, distinct from the lever 18, which strikes the respective slide after release of the mechanism 17, which provides cutting assistance for currents of fault close to the repulsion threshold.
  • Each slide 32 is constituted by a flat and light piece of insulating material having, towards its lower end, a window 40 which allows, on the one hand, the mounting of the contact bridge 12 and, on the other hand, the pressure spring contact 37 associated with the bridge.
  • the window 40 of the slider opens onto the corresponding window 36 of the support. Studs 41 are provided in the support 31 at the bottom of the window 40 on either side of the slot 33 and a guide 42 is provided in the slide 32 at the bottom of the window 40.
  • the slides could have a different section.
  • the contact bridge is mounted in the window 40 so as to be substantially integral or immobilized in translation relative to the slide, but to be able to take an angular clearance relative to its nominal position, perpendicular to the median plane X of the slide which is at the same time the plane of symmetry of the support and the contact bridges.
  • solidarity or immobilization in translation it is meant that the slide is capable of driving the bridge, and the bridge capable of driving the slide, in the opening direction of the contacts.
  • notches 43 are provided at the top of the window 40 and cooperating projections 44 on the bridge 12. After introduction of the contact bridge in the window 40 of the slide, the projections 44 are crimped in the notches 43.
  • the electrodynamic repulsion of a contact bridge is illustrated on the right of FIG. 8.
  • the contact bridge 11 can be pushed back down, as shown, by driving the coupled slide and compressing the spring 37. It can be seen that the isolation range 45 of the slider appears in the window 36 of the support, which ensures good insulation between the fixed contacts 12, 13 and the break zones of the pole in short circuit.
  • the contact-carrying structure occupies the open position following a trip.
  • the support 31 remains in a high position which is the same as that of FIG. 8, as long as the coil of the electromagnet remains energized.
  • the lever 18 lowers and lowers the slides 32 which drive the contact bridges to the position indicated.
  • the insulating zones 45 again interpose to improve the quality of the insulation.
  • the support 31 will then be lowered by the lever 28 in response to the opening of the switch 25 which deactivates the coil of the electromagnet.
  • each contact pressure spring 37 is housed in an upper window 46 of the slide 32.
  • the window 46 is separate from the lower window 40 housing the bridge 11 and is separated from it by the isolation range 45.
  • the isolation range 45 obscures the window 36 of the support in the event of omnipolar or unipolar opening.
  • the spring 37 bears, on the one hand, on an upper face 47 of the support 31, on the other hand, on an upper end of the upper window 46; the location away from the arc zones allows it to avoid being polluted and / or deteriorated by the breaking gases.
  • Each slide 32 is advantageously guided in a suitable slide 48 of the housing of the device.
  • the slides can be in the form of forks, the branches of which are guided in slots or grooves provided on the external faces of the support.
  • the contact pressure springs can be tension springs.
  • the invention has been described with regard to a contactor-circuit breaker. It is applicable to circuit breakers of other types, for example to a starter type circuit breaker comprising two tripping mechanisms, one of which is manually controlled and the other by magnetic trip units to act respectively on the sliders and the supports; or again, to a circuit breaker in which the magnetic trip devices act directly on the slides and indirectly, that is to say by means of a lock, on the support.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
EP91403049A 1990-11-15 1991-11-14 Schutzschalter Expired - Lifetime EP0486389B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9014202A FR2669463B1 (fr) 1990-11-15 1990-11-15 Interrupteur de protection.
FR9014202 1990-11-15

Publications (2)

Publication Number Publication Date
EP0486389A1 true EP0486389A1 (de) 1992-05-20
EP0486389B1 EP0486389B1 (de) 1995-06-14

Family

ID=9402212

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91403049A Expired - Lifetime EP0486389B1 (de) 1990-11-15 1991-11-14 Schutzschalter

Country Status (4)

Country Link
US (1) US5233321A (de)
EP (1) EP0486389B1 (de)
DE (1) DE69110409T2 (de)
FR (1) FR2669463B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2706221A1 (fr) * 1993-06-07 1994-12-16 Telemecanique Appareil interrupteur de protection.
FR2707794A1 (fr) * 1993-07-12 1995-01-20 Telemecanique Appareil interrupteur de protection.
FR2714207A1 (fr) * 1993-12-22 1995-06-23 Telemecanique Appareil interrupteur à contacts réglables.
EP0669633A1 (de) * 1994-02-25 1995-08-30 Schneider Electric Sa Schutzschaltgerät
FR2756414A1 (fr) * 1996-11-25 1998-05-29 Schneider Electric Sa Appareil interrupteur electromagnetique

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2687251B1 (fr) * 1992-02-11 1994-04-29 Telemecanique Structure de coupure pour disjoncteur.
FR2691576B1 (fr) * 1992-05-22 1994-07-08 Telemecanique Appareil interrupteur de protection.
US5296826A (en) * 1993-05-13 1994-03-22 Eaton Corporation Switch assembly
DE19617136C2 (de) * 1996-04-29 2000-05-11 Siemens Ag Schaltgerät
SE516457C2 (sv) * 1999-01-28 2002-01-15 Asea Brown Boveri Brytare i kontaktor
JP2000340093A (ja) * 1999-05-25 2000-12-08 Fuji Electric Co Ltd 回路遮断器の過電流引外し装置
US6476697B2 (en) 2000-01-18 2002-11-05 Kilovac Corporation Modular multi-phase contactor
CN1270422C (zh) * 2000-04-07 2006-08-16 西门子公司 电磁开关装置的接通方法和与之相应的电磁开关装置
JP4395023B2 (ja) * 2003-11-04 2010-01-06 三菱電機株式会社 回路遮断器
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
US7982564B2 (en) * 2008-06-30 2011-07-19 Remy Technologies, Llc Starter solenoid with vibration resistant features
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
CN102347177A (zh) * 2011-09-19 2012-02-08 广东天富电气集团有限公司 一种热磁型断路器的工作方法
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
CN104632494B (zh) * 2013-11-08 2018-10-09 索恩格汽车部件（中国）有限公司 起动机及其开关
CN107170604A (zh) * 2016-04-29 2017-09-15 浙江英洛华新能源科技有限公司 高压直流继电器相向电弧隔离装置
CN106409621B (zh) * 2016-12-02 2019-02-05 雷顿电气科技有限公司 控制与保护开关电器的辅助模块
US10002721B1 (en) * 2017-02-27 2018-06-19 Carling Technologies, Inc. Multiple contact circuit breaker

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2003575A1 (de) * 1968-03-09 1969-11-07 Stotz Kontakt Gmbh
EP0237607A1 (de) * 1986-03-21 1987-09-23 Square D Company (Deutschland) Gmbh Schütz
EP0270158A2 (de) * 1986-11-03 1988-06-08 Moeller GmbH Schaltvorrichtung
FR2634590A1 (fr) * 1988-07-22 1990-01-26 Telemecanique Electrique Appareil de protection a contacts commandables par un electro-aimant

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611082B1 (fr) * 1987-02-13 1993-05-28 Telemecanique Electrique Appareil interrupteur de protection a ouverture et fermeture telecommandables
JPH02100229A (ja) * 1988-10-06 1990-04-12 Mitsubishi Electric Corp 遠隔操作式回路遮断器
FR2638563B1 (fr) * 1988-10-27 1990-12-14 Telemecanique Electrique Dispositif de securite pour appareil de commutation realise par l'assemblage de plusieurs elements modulaires amovibles

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2003575A1 (de) * 1968-03-09 1969-11-07 Stotz Kontakt Gmbh
EP0237607A1 (de) * 1986-03-21 1987-09-23 Square D Company (Deutschland) Gmbh Schütz
EP0270158A2 (de) * 1986-11-03 1988-06-08 Moeller GmbH Schaltvorrichtung
FR2634590A1 (fr) * 1988-07-22 1990-01-26 Telemecanique Electrique Appareil de protection a contacts commandables par un electro-aimant

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2706221A1 (fr) * 1993-06-07 1994-12-16 Telemecanique Appareil interrupteur de protection.
FR2707794A1 (fr) * 1993-07-12 1995-01-20 Telemecanique Appareil interrupteur de protection.
US5546062A (en) * 1993-07-12 1996-08-13 Schneider Electric Sa Protection switch
FR2714207A1 (fr) * 1993-12-22 1995-06-23 Telemecanique Appareil interrupteur à contacts réglables.
EP0669633A1 (de) * 1994-02-25 1995-08-30 Schneider Electric Sa Schutzschaltgerät
US5594399A (en) * 1994-02-25 1997-01-14 Schneider Electric Sa Protective switching device
FR2756414A1 (fr) * 1996-11-25 1998-05-29 Schneider Electric Sa Appareil interrupteur electromagnetique

Also Published As

Publication number Publication date
EP0486389B1 (de) 1995-06-14
FR2669463B1 (fr) 1995-05-12
FR2669463A1 (fr) 1992-05-22
DE69110409D1 (de) 1995-07-20
DE69110409T2 (de) 1996-01-11
US5233321A (en) 1993-08-03

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