EP2061062B1 - Appareil de coupure électrique - Google Patents

Appareil de coupure électrique Download PDF

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Publication number
EP2061062B1
EP2061062B1 EP08354072A EP08354072A EP2061062B1 EP 2061062 B1 EP2061062 B1 EP 2061062B1 EP 08354072 A EP08354072 A EP 08354072A EP 08354072 A EP08354072 A EP 08354072A EP 2061062 B1 EP2061062 B1 EP 2061062B1
Authority
EP
European Patent Office
Prior art keywords
electrical switchgear
unit according
contacts
module
foregoing
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.)
Active
Application number
EP08354072A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2061062A1 (fr
Inventor
Laurent Previeux
Yves Brune
Claude Burnot
Roland Masnada
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 EP2061062A1 publication Critical patent/EP2061062A1/fr
Application granted granted Critical
Publication of EP2061062B1 publication Critical patent/EP2061062B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
    • H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
    • H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5822—Flexible connections between movable contact and terminal
    • 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
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0207—Mounting or assembling the different parts of the circuit breaker
    • H01H71/0221—Majority of parts mounted on central frame or wall
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/34—Stationary parts for restricting or subdividing the arc, e.g. barrier plate
    • H01H9/346—Details concerning the arc formation chamber

Definitions

  • the present invention relates to an electrical switching device housed in a housing, said apparatus comprising fixed contacts, movable contacts supported by a contact-carrying shaft, a mechanism for opening and / or closing the contacts and at least one chamber for cut.
  • the differential switches comprise a base and a cover. On this base are fixed a shaft supporting the movable contacts, fixed contacts, a mechanism for opening and closing the contacts, terminal ranges and terminals.
  • a torus and primary wires are generally housed in the base without being fixed.
  • Primary (or power) wires are flexible wires or rigid wires. They are welded, on one side, to the fixed contacts or to the braids of the moving contacts and on the other side to the ranges of the upstream or downstream terminals.
  • this switch also has breaking chambers made inside the base.
  • differential switches comprising an intermediate casing element disposed between the base and the cover, this intermediate casing element serving to support the contact-bearing shaft and the torus, or having a particular internal support for the door shaft. -contact and the torus.
  • the choice of the material is a compromise between the technical and aesthetic needs of the base (or interlayer) and the performance requirements of the breaking chamber.
  • patents are known EP 1117115 and EP 530392 describing differential switches in which the breaking chambers are integrated in the base.
  • the patent is also known FR 2475291 wherein the differential switch described therein comprises a pedestal, a spacer housing member and a cover.
  • the intermediate housing is supported on the outer faces of the base.
  • the cover is supported on the intermediate housing.
  • This intermediate housing supports the breaking chambers, a contact-contact slider, the fixed contacts, the mechanism, the terminals, the terminal ranges, the toroid, the power wires.
  • the choice of the material of the intermediate housing is not free. It influences the external appearance of the switch. It is dependent on the forces exerted by the terminals on the envelope and is dependent on the breaking performance. In addition, the cutting chamber must be closed by a cover, resulting in a sealing problem.
  • the present invention solves these problems and proposes an electrical switching device which makes it possible not to be constrained for the choice of the material of the interrupting chamber by compromises related to other functions, which makes it possible to make the internal functions evolve without change the base or cover, make the pedestal and the cover evolutionary without changing the internal functions, no longer be bothered by the base to assemble the internal components, not to pollute the interior of the base or the break chambers when weld internal connections and make the configuration of the functions flexible without changing the internal functions or make the differentiation delayed.
  • the subject of the present invention is an electrical breaking device of the kind mentioned above, said apparatus comprising fixed contacts, movable contacts supported by a contact-carrying shaft, a mechanism for opening and / or closing the contacts. and at least one interrupting chamber, this device being characterized in that it comprises a one-piece and removable cutting module comprising at least one breaking chamber, said module supporting the movable contact-holder shaft such that said shaft closes said rooms.
  • the material of the interrupting chamber is different from that of the base.
  • the movable contact-carrying shaft is rotatably mounted relative to the breaking module.
  • the cut-off module also supports the contact pressure springs.
  • the cut-off module also supports the springs for opening the contacts.
  • the removable cutting module further comprises the braids of the moving contacts and the ranges of the downstream terminals connected to the braids.
  • the breaking module further comprises the fixed contacts.
  • the breaking module further comprises the opening / closing mechanism of the contacts and / or a sudden closing mechanism.
  • the breaking module comprises at least partly a tripping test circuit.
  • the breaking module further comprises a toroid, primary conductors passing through the toroid and soldered to the fixed contacts, and the contact pads of the upstream terminals of the apparatus.
  • the soldering areas of the fixed contacts are placed in the vicinity of the bottom of the breaking module so that the welds of the fixed contacts can be made with the bottom of the break chambers directed towards the top of the apparatus.
  • the removable cutting module is integrated in the lid.
  • a differential switch D housed in a housing comprising a base 1 and a cover (not shown), said housing containing, in a manner known per se, a shaft 2 for supporting the movable contacts 3 of the apparatus, fixed contacts 4, upstream and downstream terminals 5 and 6, a mechanism 7 for opening / closing or actuating the shaft, a torus 8, primary conductors 9, contact pressure springs 10 and springs 11 opening of contacts.
  • the base 1 comprises housings 12 for receiving the upstream and downstream terminals 5 and 6 of the apparatus.
  • the apparatus comprises a removable and monoblock cleavage module 13 comprising several breaking chambers 14,15,16 and 17 extending parallel to each other. In this embodiment, the number of breaking chambers is four.
  • This breaking module 13 is intended to support an assembly comprising the shaft 2 said movable contact holder 3, said movable contacts being connected by means of a braid 18 to the corresponding contact pad 19 of the downstream terminal 6.
  • This module also supports the fixed contacts 4, which are welded to one end of the primary conductors 9, the other end 20 is connected by welding to the corresponding contact pad 21 of the upstream terminals 5 of the device.
  • This assembly is intended to be mounted on the breaking module 13, by introducing the shaft 2 into U-shaped recesses provided in the module, and rotatably mounting the shaft 2 relative to said module 13 by introducing the end portions 23,24 of the shaft 2 supporting the movable contacts 3 respectively in two orifices 26,25 provided in the breaking module 13.
  • breaking chamber 13 is fixed to the base by means of sliding systems 27, 28 partially provided on the breaking module 13 and partly on the base.
  • the breaking module is removable, the material of the interrupting chamber will advantageously have different technical properties from those of the housing and the base and the cover will not intervene in the breaking of the electric arc.
  • the performances of the interrupting chamber are no longer dependent on a compromise on the technical performance with the other functions of the base or the cover concerning for example the material, the material costs, the housing of the terminals, the aesthetic charter of several ranges of devices.
  • the performance of the switch will be greater than those of current modular devices, the noble material being reserved for the interrupting chamber.
  • the chambers are sealed relative to each other and relative to the base, because the module is monobloc and the fact that the arrangement of the contact-carrier shaft allows to have deep chambers.
  • the vanishing lines are preserved because there are no short vanishing lines between the chambers, because there is no seal between the chambers, the cutoff module being in one piece.
  • the contact-carrying shaft, the movable contacts, the fixed contacts, the contact pressure springs and the opening spring are integrated in the removable monobloc module constituted by the breaking chambers.
  • the positioning of the contact carrier shaft, movable contacts and fixed contacts refer to only one part.
  • the positioning dispersions are minimum and mounting the module in the base is very easy.
  • the alignment of the contacts is improved and consequently the closing and breaking performance is higher than that of other modular devices.
  • the assembly of the toroid and assembled primaries to the breaking module in the base can be done at once and not in two times.
  • the primaries equipped with torus and contact pads are welded to the fixed contacts, which are positioned on the breaking module outside the base.
  • the projections of the welds do not fall into the base and therefore there is no internal pollution during soldering of the electrical connections and therefore no risk of reducing the internal creepage distances.
  • the contacting areas of the fixed contacts are placed closer to the bottom of the cutoff module so that the welds can be made with the bottom of the cutoff chambers directed towards the top of the device, when the breaking chamber is outside the base.
  • this subset constituted may be common to several different housings, in particular with terminals different in size or type.
  • the pedestals may also be different in color, material and form.
  • the bases can also be different in their function to make a differential switch, a switch, a switch disconnector, remote control or not .... Thus, the base does not interfere to assemble the components either manually or automatically.
  • Internal functions can evolve without changing the base.
  • the base can evolve without changing the internal functions.
  • the configuration of the functions can be flexible without changing the internal functions. It is possible to do delayed differentiation.
  • the mountings of terminals can be different cage or elastic with different bases. It is possible to change the appearance of the case without changing the internal functions.
  • Subassembly variants can be stored to give flexibility to manufacture.

Landscapes

  • Power Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Lock And Its Accessories (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Valve Device For Special Equipments (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Relay Circuits (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Sink And Installation For Waste Water (AREA)
  • Seal Device For Vehicle (AREA)
  • Mechanisms For Operating Contacts (AREA)
EP08354072A 2007-11-16 2008-10-08 Appareil de coupure électrique Active EP2061062B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0708045A FR2923939A1 (fr) 2007-11-16 2007-11-16 Appareil de coupure electrique

Publications (2)

Publication Number Publication Date
EP2061062A1 EP2061062A1 (fr) 2009-05-20
EP2061062B1 true EP2061062B1 (fr) 2010-08-04

Family

ID=39522168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08354072A Active EP2061062B1 (fr) 2007-11-16 2008-10-08 Appareil de coupure électrique

Country Status (10)

Country Link
EP (1) EP2061062B1 (ru)
CN (1) CN101436491B (ru)
AT (1) ATE476750T1 (ru)
BR (1) BRPI0804924B1 (ru)
DE (1) DE602008002034D1 (ru)
DK (1) DK2061062T3 (ru)
EA (1) EA017470B1 (ru)
EG (1) EG24961A (ru)
ES (1) ES2347900T3 (ru)
FR (1) FR2923939A1 (ru)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2999787B1 (fr) * 2012-12-14 2014-11-28 Schneider Electric Ind Sas Appareil de coupure de courant electrique, en particulier un disjoncteur de branchement.
CN108803778B (zh) * 2017-06-12 2020-03-17 深圳冰尺科技有限公司 可穿戴式终端

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2475291A1 (fr) * 1980-01-31 1981-08-07 Merlin Gerin Interrupteur differentiel multipolaire pour reseau a basse tension
US5025236A (en) * 1989-09-07 1991-06-18 Fuji Electric Co., Ltd. Circuit breaker
DE59103821D1 (de) 1991-09-02 1995-01-19 Siemens Ag Fehlerstromschutzschalter.
FR2687838B1 (fr) * 1992-02-21 1994-04-08 Merlin Gerin Disjoncteur differentiel unipolaire et neutre et a circuit test.
FR2703822B1 (fr) * 1993-04-07 2002-01-25 Merlin Gerin Disjoncteur multipolaire à assemblage modulaire .
FR2735277B1 (fr) * 1995-06-12 1997-07-18 Schneider Electric Sa Disjoncteur a moyenne tension et a isolement gazeux
JP3117074B2 (ja) * 1996-08-06 2000-12-11 富士電機株式会社 回路遮断器
FR2803688B1 (fr) 2000-01-10 2002-03-01 Schneider Electric Ind Sa Appareil de protection electrique differentiel, notamment un interrupteur differentiel
ITMI20012327A1 (it) * 2001-11-06 2003-05-06 Abb Service Srl Interruttore di bassa tensione

Also Published As

Publication number Publication date
CN101436491B (zh) 2013-06-12
BRPI0804924A2 (pt) 2009-07-28
FR2923939A1 (fr) 2009-05-22
CN101436491A (zh) 2009-05-20
ATE476750T1 (de) 2010-08-15
BRPI0804924B1 (pt) 2019-01-02
DE602008002034D1 (de) 2010-09-16
EG24961A (en) 2011-02-28
EA017470B1 (ru) 2012-12-28
EA200802150A2 (ru) 2009-06-30
DK2061062T3 (da) 2010-11-08
EA200802150A3 (ru) 2009-08-28
EP2061062A1 (fr) 2009-05-20
ES2347900T3 (es) 2010-11-22

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