EP0542636A1 - Aus einpoligen Einheiten bestehender Schutzschalter - Google Patents

Aus einpoligen Einheiten bestehender Schutzschalter Download PDF

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Publication number
EP0542636A1
EP0542636A1 EP92420356A EP92420356A EP0542636A1 EP 0542636 A1 EP0542636 A1 EP 0542636A1 EP 92420356 A EP92420356 A EP 92420356A EP 92420356 A EP92420356 A EP 92420356A EP 0542636 A1 EP0542636 A1 EP 0542636A1
Authority
EP
European Patent Office
Prior art keywords
circuit breaker
box
bar
breaker according
blocks
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
EP92420356A
Other languages
English (en)
French (fr)
Other versions
EP0542636B1 (de
Inventor
Philippe Perrier
Jean-Pierre Nereau
Robert Morel
Jean-Pierre Nebon
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
Merlin Gerin 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9418007&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0542636(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Merlin Gerin SA, Schneider Electric SE filed Critical Merlin Gerin SA
Publication of EP0542636A1 publication Critical patent/EP0542636A1/de
Application granted granted Critical
Publication of EP0542636B1 publication Critical patent/EP0542636B1/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
    • 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
    • H01H1/2041—Rotating bridge
    • H01H1/2058—Rotating bridge being assembled in a cassette, which can be placed as a complete unit into a circuit breaker
    • 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
    • H01H71/1009—Interconnected mechanisms
    • 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
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/1009—Interconnected mechanisms
    • H01H2071/1036—Interconnected mechanisms having provisions for four or more poles
    • 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
    • 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
    • H01H9/342—Venting arrangements for arc chutes

Definitions

  • the invention relates to a low-voltage, multi-pole, double-jacker circuit breaker, each pole of which comprises, a single-pole breaking block having a parallelepiped box with two large side faces, made of molded plastic, and contacts associated with a breaking chamber housed in said block, several blocks being mounted side by side in a molded case to constitute the multipole circuit breaker.
  • a circuit breaker of the type mentioned, comprises for each pole an individual block constituted by a bulb, in this case by a molded plastic box containing the contacts and the breaking chambers.
  • the advantages of such modular systems are well known, in particular the reduction in manufacturing and assembly costs. They nevertheless impose constraints on the respective positioning of the different modules, in this case of connection between the moving parts of the different unipolar blocks.
  • a known circuit breaker comprises a rotary shaft which crosses all of the unipolar blocks to drive the movable contacts of these blocks in simultaneous rotation. The presence of this rotating shaft imposes constraints on positioning and architecture.
  • the object of the present invention is to produce a multipole circuit breaker, of the modular type, having a mechanical connection between the unipolar blocks compatible with the use of a contact bridge.
  • the circuit breaker according to the invention is characterized in that a movable contact is arranged in a rotary contact bridge which cooperates with two opposite fixed contacts, that the contact bridge is carried by a section of rotary bar, which extends transversely substantially in the center of said box while being inserted and guided laterally by the two large lateral faces of the box while being able to struggle in limited translation parallel to these large faces, that the sections of bars of the various juxtaposed blocks are mechanically secured by two parallel connecting bars which extend perpendicular to said large faces and pass through diametrically opposite orifices, made with little clearance, formed in successive bar sections, that the two connecting bars are coupled to a crank with two diametrically opposite arms, and that a control mechanism, fixed to the upper part of one of the blocks, comprises two metal flanges carrying the bearing of said crank and a lower connecting rod actuating said crank.
  • Each unipolar block constitutes a breaking assembly housed in an insulating envelope in the form of a box, and these blocks are grouped in a second envelope constituted by the casing of the multipolar circuit breaker.
  • the contact bridge of each unipolar block is mounted floating on a section of bar and the rigid mechanical connection between the various sections of bar, is carried out by the two bars which extend parallel to the bar, and are offset from the axis of rotation of the latter.
  • the bar section is positioned in the axial direction by the two large faces of the housing which frame it, but it is free to move in the other directions to compensate for manufacturing or positioning irregularities.
  • the two diametrically opposite connecting bars rigidly secure the successive sections of bar, while leaving free the central part of the section for the passage of the contact bridge.
  • the large faces of the box have openings in the form of an arc of a circle for the passage with link rods, the only other openings being those for the exhaust of the cut-off gases at the rear of the chambers.
  • the circuit breaker control mechanism is associated with one of the unipolar blocks, preferably with the central block, and it is arranged to be placed on the upper face of the box by registering in the width of the box.
  • Such a mechanism can, in this case, be used for the entire range of single-pole or multi-pole circuit breakers, which facilitates the manufacture of such a range of circuit breakers.
  • the mechanism is of the lever type, in particular pivoting, and with a toggle for controlling the rotation of a crank with two diametrically opposite arms.
  • One of said connecting bars is coupled to each arm of the crank to rotate the bar sections.
  • the mechanism comprises two lateral flanges, each of which carries a bearing of a crank and these lateral flanges serve as fastening parts to the associated unipolar block, for example using alignment rods, which connect the different unipolar blocks and the spacers.
  • the spacers between two adjacent blocks ensure modularity between circuit breakers of the same range, in this case between a single-pole circuit breaker and a multi-pole circuit breaker, as described in detail in the French patent application filed jointly, and entitled " Range of low voltage circuit breakers with molded case ".
  • the spacer plate has, opposite the curved openings of the large lateral faces of each box, two curved openings centered on the axis of the bar for the passage of the two connecting bars.
  • the section of bar of generally cylindrical shape made of an insulating material, comprises on the one hand a diametrical lumen traversed by the contact bridge, and on the other hand two orifices offset angularly and perpendicular to the lumen for the passage without clearance of the bars which are thus electrically isolated from the contact bridge.
  • the curved openings of the large lateral faces are crossed with the eu by the connecting bars which only partially close these openings.
  • the curved lights are capped by the bottom of the section of bar opposite the large face. improved by inserting between the bottom and the large face a flexible disc secured to the connecting bars which pass through it without play. During an internal overpressure the disc is pressed against the large lateral face by closing the curved openings.
  • the contact bridges of the various modular blocks extend in a plane substantially parallel to the bottom of the housing and each contact bridge, cooopere on the one hand, with a fixed contact located above this plane and on the other hand, on the opposite side with a fixed contact located below this plane.
  • Each fixed contact is connected to a connection pad, and the pad connected to the fixed contact arranged below the plane is close to the front face of the box, while the pad connected to the other fixed contact is in the vicinity from the bottom of the box.
  • This arrangement gives the unipolar block a certain symmetry and facilitates the connection of a trip unit which can either be integrated into the circuit breaker box or be attached to the small side face of the circuit breaker box.
  • the trigger block is common to the different unipolar blocks, but it is conceivable to produce modular systems each associated with one of the unipolar blocks.
  • the trigger block is arranged on the side of the pads on the front face of the unipolar blocks.
  • the modularity of the system facilitates the realization of a range of circuit breakers from a limited number of sub-assemblies.
  • the system is particularly simple and the double envelope, as well as the double cutoff, give it remarkable performance.
  • Figure 1 is a schematic exploded perspective view of a circuit breaker according to the invention.
  • FIG. 2 is a perspective view on an enlarged scale of a single-pole unit and of the associated control mechanism of the circuit breaker according to FIG. 1.
  • Figure 3 is a cross-sectional view of the unipolar block.
  • Figure 4 is an axial sectional view of the bar section, showing the sealing valves.
  • a multipolar circuit breaker with molded housing 10 comprises four unipolar blocks 11 of generally parallelepiped shape, and arranged side by side in the housing 10.
  • Each unipolar block comprises a box 12 of molded plastic material having a bottom 13, a front face 14, two large parallel side faces 15,16 and two small parallel faces 17,18.
  • a contact bridge 19 carried by a section of bar 20 extending perpendicularly to the large lateral faces 15, 16.
  • the movable contact bridge 19 cooperates, on one side with a fixed contact 22, and on the opposite side with a fixed contact 23 and on each pair of contacts 19, 22; 19,23 is associated with a breaking chamber 24 with deionization plates.
  • the movable contact bridge 19 is mounted floating on the bar section 20, by means of two opposite springs in the manner described in detail in French Patent No. 2,622,347.
  • the axis of rotation 21 of the contact bridge 19 is substantially in the center of the box 12, and in the closed position the contact bridge 19 extends in a median plane, substantially parallel to the bottom 13 of the box 12.
  • the fixed contact 22 is disposed above this median plane, and is connected to a contact pad 25, near the front face 14, of the box 12.
  • the other contact opposite 23 is arranged below this median plane, and is connected to a track 26 near the bottom 13 of the box 12.
  • the unipolar block 11 is an independent unit constituting one of the poles of the circuit breaker, and the association of several unipolar blocks allows the production of a multipole circuit breaker.
  • the unipolar blocks 11 are joined by their large lateral faces 15, 16, with the interposition of a spacer plate 27 defining an interval between the successive blocks.
  • the bar sections 20 of the different unipolar blocks 11 are mechanically connected by two connecting bars 28 which extend parallel to the axis of rotation 21, and which pass without clearance through the orifices 29 formed in the bar sections 20.
  • the bars connecting 28 are eccentric with respect to the axis of rotation 21, and the large lateral faces 15, 16, and the spacer plates 27, have elongated slots 30 of curved shape, allowing the passage with clearance of the connecting bars 28 with a possibility of travel suitable for the rotational movement of the bar sections 20.
  • the bar section 20 in the form of a cylindrical nut made of an insulating material, is framed laterally with little play by the two large faces 15, 16, but it is free to move slightly in the other directions to compensate for manufacturing irregularities or positioning.
  • the contact bridge 19, in the form of a bar, passes through a lumen 33 formed according to a diameter in the bar section 20 and this lumen 33 is angularly offset relative to the orifices 29 for passage of the connecting bars 28 perpendicular to the contact bridge 19 .
  • a mechanism 32 On the front face 14 of one of the central unipolar blocks 11, is fixed a mechanism 32, of a standard type, having a control lever 31 and a toggle.
  • the mechanism 32 comprises two external metal flanges 34, extending in parallel while being spaced apart by a distance corresponding substantially to the width of the unipolar block 11.
  • These flanges 34 are fixed, at their lower part 35, to the unipolar block 11 by alignment rods 37 which extend perpendicular to the large faces 15,16 and pass through aligned orifices 38,39 respectively flanges 34 and boxes 12.
  • Each flange 34 carries a bearing 40 of a crank 42 with axis 41 controlled by the mechanism 32 to perform a limited rotation alternately respectively for the opening and closing of the circuit breaker.
  • Each crank 42 has two opposite arms 43, each crossed without play by one of the connecting bars 28. A rotation of the cranks 42 is transmitted by means of the two bars 28, which struggle in the curved slots 30, to the different bar sections 20 for opening and closing the contacts
  • the mechanism 32 is common to all of the unipolar blocks 11, and this mechanism is housed in the housing 10, only the handle 31 being accessible from the outside for controlling the circuit breaker.
  • the bars 28 constitute a rigid connection between the sections 20 which form a bar articulated by the bearings 40 on the two flanges 34.
  • the imperfections in positioning or manufacturing do not affect the movement of the contact bridge 19 guided by the bar section 20, the latter being mounted with play in the box 12. From standard unipolar blocks 11, it is possible to manufacture a whole range of circuit breakers with molded casing, the double jacket constituted by the box 12 and the casing 10, as well as the floating mounting of the contact bridge 19 guaranteeing remarkable performances of the circuit breaker.
  • the circuit breaker comprises a trip block (not shown) which is either integrated into the housing 10, or attached to the small external face of the latter.
  • the trigger of the electronic or electromechanical type can be common to all the unipolar blocks 11, or possibly be of the modular type, associated with each pole unit 11.
  • At the rear of the breaking chambers 24 are provided exhaust openings 44 cut-off gases outside the box 12, the only other openings of the latter being the curved openings 30 for passage of the connecting bars 28.
  • the quasi-tightness of the box 12, in particular in its central part promotes cutting, the arc being blown towards the cutting chambers 34. In referring to FIG. 4, it can be seen that this sealing is improved by the small clearance between the front part 45 of the bar section 20 and the internal surface of the large face 15, 16.
  • a flexible disc 46 is interposed between the bar section 20 and the large face 15, 16 facing the curved openings 30.
  • the disc 46 operates as a valve coming to be pressed against the faces 15, 16 during an internal overpressure to close off the openings 30.
  • the connecting bars 28 pass through holes made in the disc 46 which moves with these bars with little play.
  • Other sealing means for example with a drawer, can be envisaged.

Landscapes

  • Breakers (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Amplifiers (AREA)
  • Distribution Board (AREA)
EP92420356A 1991-10-15 1992-10-09 Aus einpoligen Einheiten bestehender Schutzschalter Expired - Lifetime EP0542636B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9112793A FR2682531B1 (fr) 1991-10-15 1991-10-15 Disjoncteur multipolaire a blocs unipolaires.
FR9112793 1991-10-15

Publications (2)

Publication Number Publication Date
EP0542636A1 true EP0542636A1 (de) 1993-05-19
EP0542636B1 EP0542636B1 (de) 1996-04-17

Family

ID=9418007

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92420356A Expired - Lifetime EP0542636B1 (de) 1991-10-15 1992-10-09 Aus einpoligen Einheiten bestehender Schutzschalter

Country Status (16)

Country Link
US (1) US5281776A (de)
EP (1) EP0542636B1 (de)
JP (1) JP3392442B2 (de)
KR (1) KR100299551B1 (de)
CN (1) CN1028935C (de)
AT (1) ATE137058T1 (de)
AU (1) AU659219B2 (de)
BR (1) BR9203982A (de)
CA (1) CA2080063C (de)
DE (1) DE69209972T2 (de)
ES (1) ES2087493T3 (de)
FR (1) FR2682531B1 (de)
MX (1) MX9205923A (de)
MY (1) MY107991A (de)
TW (1) TW214013B (de)
ZA (1) ZA927903B (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0617449A1 (de) * 1993-03-25 1994-09-28 Schneider Electric Sa Schaltgerät
WO1995008837A1 (fr) * 1993-09-24 1995-03-30 Schneider Electric S.A. Appareil interrupteur
US6087609A (en) * 1996-07-27 2000-07-11 Kloeckner-Moeller-Gmbh Circuit breaker, arcing chamber housing for a circuit breaker and housing module for an arcing chamber housing
WO2000054297A1 (de) * 1999-03-08 2000-09-14 Moeller Gmbh Mehrpoliger leistungsschalter
US6259338B1 (en) 1999-03-08 2001-07-10 Moeller Gmbh Multipole circuit breaker
FR2826174A1 (fr) * 2001-06-19 2002-12-20 Moeller Gmbh Appareil de coupure multipolaire comportant un boitier double
DE4423277B4 (de) * 1993-07-06 2004-08-19 Circuit Breaker Industries Ltd., Elandsfontein Leistungsschalter mit gemeinsamem Auslösemechanismus
WO2011033184A1 (fr) 2009-09-18 2011-03-24 Schneider Electric Industries Sas Entretoise fonctionnelle de separation des ampoules dans un dispositif de coupure multipolaire et disjoncteur
WO2011033183A1 (fr) 2009-09-18 2011-03-24 Schneider Electric Industries Sas Assemblage d'un dispositif de coupure multipolaire a double enveloppe et disjoncteur le comprenant
EP2733720A1 (de) 2012-11-19 2014-05-21 Schneider Electric Industries SAS Thermomagnetischer Auslöser zur Auslösung eines Mehrphasen-Überlastschalters
US9087652B2 (en) 2010-08-24 2015-07-21 Siemens Aktiengesellschaft Electrical switch and method for mounting a switching unit of an electrical switch
US9129768B2 (en) 2009-10-15 2015-09-08 Siemens Aktiengesellschaft Multipole electrical switching device
WO2020124175A1 (pt) 2018-12-21 2020-06-25 Weg Drives & Controls - Automação Ltda Módulo de interrupção em caixa moldada para disjuntor e disjuntor em caixa moldada modular

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CA2058424A1 (en) * 1989-07-21 1991-01-22 Akihiro Shibata Quinoline carboxylic acid derivatives
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DE19643643B4 (de) * 1996-10-22 2005-09-08 Heinrich Kopp Ag Leitungsschutzschalter mit Lichtbogenlöschkammer und Entionisierungseinrichtung
IT1292453B1 (it) 1997-07-02 1999-02-08 Aeg Niederspannungstech Gmbh Gruppo rotante di contatti per interrutttori di alta portata
DE19819242B4 (de) 1998-04-29 2005-11-10 Ge Power Controls Polska Sp.Z.O.O. Thermomagnetischer Leistungsschalter
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JP3721266B2 (ja) * 1998-08-04 2005-11-30 株式会社日立産機システム 回路遮断器
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EP0617449A1 (de) * 1993-03-25 1994-09-28 Schneider Electric Sa Schaltgerät
DE4423277B4 (de) * 1993-07-06 2004-08-19 Circuit Breaker Industries Ltd., Elandsfontein Leistungsschalter mit gemeinsamem Auslösemechanismus
WO1995008837A1 (fr) * 1993-09-24 1995-03-30 Schneider Electric S.A. Appareil interrupteur
FR2710453A1 (fr) * 1993-09-24 1995-03-31 Telemecanique Appareil contacteur-disjoncteur.
US6087609A (en) * 1996-07-27 2000-07-11 Kloeckner-Moeller-Gmbh Circuit breaker, arcing chamber housing for a circuit breaker and housing module for an arcing chamber housing
WO2000054297A1 (de) * 1999-03-08 2000-09-14 Moeller Gmbh Mehrpoliger leistungsschalter
US6259338B1 (en) 1999-03-08 2001-07-10 Moeller Gmbh Multipole circuit breaker
FR2826174A1 (fr) * 2001-06-19 2002-12-20 Moeller Gmbh Appareil de coupure multipolaire comportant un boitier double
WO2011033184A1 (fr) 2009-09-18 2011-03-24 Schneider Electric Industries Sas Entretoise fonctionnelle de separation des ampoules dans un dispositif de coupure multipolaire et disjoncteur
WO2011033183A1 (fr) 2009-09-18 2011-03-24 Schneider Electric Industries Sas Assemblage d'un dispositif de coupure multipolaire a double enveloppe et disjoncteur le comprenant
US8829369B2 (en) 2009-09-18 2014-09-09 Schneider Electric Industries Sas Functional separating spacer of the cartridges in a multipole switchgear device and circuit breaker
US9064645B2 (en) 2009-09-18 2015-06-23 Schneider Electric Industries Sas Assembly of a multipole switchgear device with double enclosure and circuit breaker comprising the same
US9129768B2 (en) 2009-10-15 2015-09-08 Siemens Aktiengesellschaft Multipole electrical switching device
US9087652B2 (en) 2010-08-24 2015-07-21 Siemens Aktiengesellschaft Electrical switch and method for mounting a switching unit of an electrical switch
EP2733720A1 (de) 2012-11-19 2014-05-21 Schneider Electric Industries SAS Thermomagnetischer Auslöser zur Auslösung eines Mehrphasen-Überlastschalters
US9024711B2 (en) 2012-11-19 2015-05-05 Schneider Electric Industries Sas Thermal-magnetic trip device for tripping a multiphase circuit breaker
WO2020124175A1 (pt) 2018-12-21 2020-06-25 Weg Drives & Controls - Automação Ltda Módulo de interrupção em caixa moldada para disjuntor e disjuntor em caixa moldada modular
US11942299B2 (en) 2018-12-21 2024-03-26 Weg Drives And Controls Automação Ltda Switch module in a molded casing for a circuit breaker and circuit breaker in a modular molded casing

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ES2087493T3 (es) 1996-07-16
JP3392442B2 (ja) 2003-03-31
CA2080063C (en) 2002-12-10
MY107991A (en) 1996-07-15
FR2682531A1 (fr) 1993-04-16
ZA927903B (en) 1993-04-21
FR2682531B1 (fr) 1993-11-26
US5281776A (en) 1994-01-25
BR9203982A (pt) 1993-04-27
CA2080063A1 (en) 1993-04-16
DE69209972T2 (de) 1996-10-31
MX9205923A (es) 1993-04-01
EP0542636B1 (de) 1996-04-17
AU2639792A (en) 1993-04-22
CN1028935C (zh) 1995-06-14
KR930008897A (ko) 1993-05-22
ATE137058T1 (de) 1996-05-15
KR100299551B1 (ko) 2001-10-22
TW214013B (de) 1993-10-01
AU659219B2 (en) 1995-05-11
DE69209972D1 (de) 1996-05-23
JPH0628964A (ja) 1994-02-04
CN1071785A (zh) 1993-05-05

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