EP0868737B1 - Vorrichtung zum anschliessen eines aussenleiters, wie ein kabel zu eine kontaktfläche eines elektrisches gerät - Google Patents

Vorrichtung zum anschliessen eines aussenleiters, wie ein kabel zu eine kontaktfläche eines elektrisches gerät Download PDF

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Publication number
EP0868737B1
EP0868737B1 EP96941726A EP96941726A EP0868737B1 EP 0868737 B1 EP0868737 B1 EP 0868737B1 EP 96941726 A EP96941726 A EP 96941726A EP 96941726 A EP96941726 A EP 96941726A EP 0868737 B1 EP0868737 B1 EP 0868737B1
Authority
EP
European Patent Office
Prior art keywords
screw
terminal
circuit breaker
block
contact strip
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
EP96941726A
Other languages
English (en)
French (fr)
Other versions
EP0868737A1 (de
Inventor
Daniel Vanzetto
Claude Burnot
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 EP0868737A1 publication Critical patent/EP0868737A1/de
Application granted granted Critical
Publication of EP0868737B1 publication Critical patent/EP0868737B1/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
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H01R4/36—Conductive members located under tip of screw
    • H01R4/363—Conductive members located under tip of screw with intermediate part between tip and conductive member
    • 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
    • H01H1/5855—Electric connections to or between contacts; Terminals characterised by the use of a wire clamping screw or nut
    • H01H2001/5861—Box connector with a collar or lug for clamping internal rail and external conductor together by a tightening screw

Definitions

  • the present invention relates to a device for connecting a conductor outside such as a cable or a connection bar, at a contact area of a electrical appliance such as a molded case circuit breaker.
  • This device is of the type comprising a metal block removably housed in a terminal compartment provided in the rear part of the circuit breaker box, said block being crossed by an elongated passage intended to receive a bar of circuit breaker terminal, and a pressure screw passing through the upper part of the block to secure the cable against the bar.
  • Such a device according to the preamble of claim 1 is described for example in DE-U-9 406 108.4.
  • connection terminal as described in the patent FR 2,438,334, the pressure screw of which is integral with a clamping shoe in the form of V designed to ensure correct centering of the cable in the locked position.
  • This terminal also does not allow the clamping of multicables, nor the connection by means of pods.
  • the present invention overcomes these drawbacks and proposes a device allowing to electrically connect the contact pads of an electrical device such as a circuit breaker, to different types of external conductors such as cables or multicables, crimp bars or lugs ensuring contact quality optimal.
  • the subject of the present invention is a device for connecting a external conductor such as a cable at a contact pad of an electrical device such a molded case circuit breaker, this device being characterized in that on the one hand, the aforementioned pressure screw has at its end located inside the block a clamping shoe of quadrangular shape, said shoe comprising at each of its angles, a claw cooperating with an obviously of complementary shape, provided on the aforementioned range and located opposite said claw, to positively retain the cable between the pad and the contact pad when tightening the screw, and on the other hand that a pair of elongated grooves are formed respectively on two surfaces. inside the terminal compartment and are intended to receive a nut with ear or the like.
  • the aforementioned grooves are formed in the part compartment bottom.
  • three facing holes are provided respectively in the wing nut, in the contact area and in the lower part of the compartment, said orifices being intended for the passage of a fixing screw, a lug or bar on the aforementioned contact pad.
  • a terminal cover plate is fixed to the part rear of the circuit breaker, said plate comprising, opposite each terminal, a conductor opening, and the aforementioned pressure screw is integral in translation of a protective screen capable of partially closing the opening corresponding plate when tightening the screw.
  • the aforementioned screen is constituted by a shaped part of L, one of the wings of which is mounted freely rotating around the part lower of the screw between the shoe and the upper part of the block and whose other wing extends to the top of the block.
  • the clamping pad is fixed to one of the ends of the screw rod by crimping.
  • each of the compartments is associated with a additional contact pad intended to be electrically connected to a device outside like a voltage indicator lamp.
  • the terminal cover plate is fixed to the rear part of the circuit breaker via rails provided on the internal surface of the plate cooperating with correspondingly shaped grooves in the part back of the camera body.
  • These plate fixing grooves have a shaped cross section of T and extend perpendicular to the longitudinal direction of the device, in spaces separating two adjacent compartments.
  • the invention also relates to a breaking device such as a circuit breaker, comprising on at least one of its two large lateral faces, terminal compartments within which contact pads extend, this device comprising at least one connection device comprising the previously described characteristics taken alone or in combination.
  • a breaking device such as a circuit breaker, comprising on at least one of its two large lateral faces, terminal compartments within which contact pads extend, this device comprising at least one connection device comprising the previously described characteristics taken alone or in combination.
  • this device comprises several of these connection devices and at least one of the pad pressure screws is replaced by a domed end screw cooperating with a contact pad presenting the aforementioned recesses.
  • FIG. 1 we see a circuit breaker D in molded housing having a 4-pole configuration and intended for use in a domestic application or industrial.
  • This case B has, on each of its two large faces opposite (of which only 1 is visible in this figure) four compartments terminal 2, 3, 4, 5.
  • the four compartments provided on the face of circuit breaker D not shown in this figure, respectively house the four bars of circuit breaker network, while the four compartments 2 to 5 provided on the face shown 1 of circuit breaker D respectively house the four load bars 6 to 9.
  • connection of charge bars 6 to 9 with the external electrical circuits to protect is most commonly achieved by means of charging terminals, even that the connection of the network modules to the network cables is carried out via network terminals, said terminals being mounted in the corresponding compartments at the installation site.
  • each charging station 10 to 13 consists of a metal block 14 of generally substantially parallelepipedal shape crossed by a elongate passage 15 inside which extends one of the contact pads 6 to 9 of the circuit breaker D.
  • the shape of each compartment 2 to 5 corresponds substantially to the external shape of block 14 so that each block 14 is immobilized vertically after introduction into compartment 2 to 5.
  • each compartment 2 to 5 comprises on the one hand, at the level of its two opposite side faces 2a, 2b, two additional grooves 16, 17 intended to facilitate the removal of the terminal (for example by means of a tool) and on the other hand, at its lower part, two additional grooves 18, 19 intended for receiving a wing nut 20 as will be described later.
  • Each block 14 has, at its upper part, a threaded orifice 21 through which is screwed a terminal screw 22, 23.
  • the terminal screw 22 of the first compartment 2 has a curved end 22a, while the screw 23 of the second compartment 3 is preferably secured by crimping a clamping pad 24.
  • this clamping shoe 24 of shape quadrangular is provided, at its four angles, with four claws 25 to 28 directed towards the contact patch 6.
  • These four claws 25 to 28 are intended to cooperate with four recesses 29 to 32, formed in the corresponding contact area 6, said recesses 29 to 32 having a shape complementary to that of the claws 25 to 28 and being located respectively with regard to the latter.
  • these terminals will be adapted to the tightening of aluminum cables when they will be fitted with a screw 22 with a curved end 22a, and for tightening cables in copper or multicables, when they are fitted with a shoe 24 with claws 25 to 28, as previously described.
  • the terminal screw 23 provided with a shoe 24 is also equipped with an electrical protection screen 33.
  • This screen 33 is consisting of an L-shaped piece, made of plastic, one of the wings 33a is mounted to rotate freely at the lower part of the rod of the screw 23 by being interposed between the shoe 24 and the upper part 34 of the terminal, while that the other 33b of the two wings 33a, 33b extends in the direction of the upper part of the terminal.
  • This screen 33 is intended to cooperate with a shape opening 40 corresponding (visible in Figure 1) formed in a terminal cover plate 41 placed on the rear part of the circuit breaker at the end of the wiring, in order to achieve a electrical protection meeting the IP2 standard as will be described later.
  • FIG. 6 it can be seen that in the grooves lower 18, 19 of one 5 of compartments 2 to 5 was introduced a wing nut 20 placed under the contact pad 9 and intended to allow the attachment of a terminal 42 on said beach 9.
  • two orifices 43, 44 have been respectively provided in contact area 9 and in the lower part of compartment 5, in order to allow the passage of a fixing screw 50 of the terminal 42 on the track 9, screwed in the hole 20b of the wing nut 20a 20a.
  • circuit breaker housing is also provided on its two large opposite faces (only one of which is visible in this figure) of contact plugs 46, intended to supply by means of fast-on lugs 47, devices such as indicator lights (not shown) intended to indicate the presence or absence of a voltage.
  • grooves 18, 19 allowing the fixing of crimp terminals 42 can also be used to fix copper bars or many others connection accessories.
  • terminals and screws will advantageously be made of aluminum.
  • the contact areas 6 to 9 of which are intended for connection to cables When the cables will be cables in aluminum, the cages should preferably be fitted with a screw 22 with a curved end 22a.
  • the recesses 29 to 32 provided in ranges 6 to 9 will already allow better quality of contact.
  • the screws 23 When the cables will be copper cables, or else multi-cable, the screws 23 will be equipped with a shoe 24 with claws 25 to 28.
  • the tightening of the screw 23 will cause the introduction of the claws of the pad 24 into the recesses 29 to 32 of the range of contact 6, the cables thus being firmly retained between the shoe 24 and the pad 6, from which it results a better quality of contact.
  • the tightening operation of screw 23 will also cause the downward movement of the screen 33 interposed between the block 14 and plate 41, until this screen 33 closes the opening 40 of the terminal cover plate 41, so as to produce a electrical insulation from the outside of the terminal, meeting the IP2 standard.
  • the plate 41 will have been previously fixed on the rear part of the circuit breaker by means of rails 41a provided on the plate 41 cooperating with grooves 41b formed in the housing.
  • a device has therefore been made allowing the connection of contact areas 6 to 9 to external conductors of different types: cable in copper, aluminum, multi-cables, terminal, bar, etc ... quickly and easily.

Landscapes

  • Breakers (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Multi-Conductor Connections (AREA)
  • Patch Boards (AREA)

Claims (11)

  1. Vorrichtung zum Anschluß einer externen Zuleitung wie z. B. eines Kabels an ein Anschlußstück eines elektrischen Schaltgeräts wie z.B. eines Schutzschalters mit Isolierstoffgehäuse, welche Vorrichtung bauartgemäß einen Metallrahmen, der in einer, an der Rückseite des Schutzschaltergehäuses ausgebildeten Klemmenaufnahme herausnehmbar gelagert ist welcher Rahmen eine längliche Durchführung zur Aufnahme eines Anschlußstegs des Schutzschalters aufweist, sowie eine Klemmschraube umfaßt, die durch die Oberseite des Rahmens hindurchgeführt wird, um das Festklemmen des Kabels auf dem Anschlußstück zu gewährleisten,
    dadurch gekennzeichnet, daß die genannte Klemmschraube (23) an ihrem, innerhalb des Rahmens (14) angeordneten Ende einen viereckigen Klemmschuh (24) trägt, welcher Klemmschuh (24) an allen vier Ecken eine Klaue (25 bis 28) aufweist, die jeweils mit einer im genannten Anschlußstück (6 bis 9) ausgebildeten und der genannten Klaue gegenüberliegenden, entsprechend geformten Vertiefung (29 bis 32) zusammenwirkt, um das Kabel beim Anziehen der Schraube (23) sicher zwischen Klemmschuh (24) und Anschlußstück (6 bis 9) zu halten, und daß an zwei Innenseiten (2a, 2b) der Klemmenaufnahme (2 bis 5) zwei längliche Nuten (18, 19) ausgebildet sind, die zur Aufnahme einer Mutter mit Blockiernase 20 o.ä. dienen.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die genannten Nuten (18, 19) im unteren Bereich der Aufnahme (2 bis 5) ausgebildet sind.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß drei miteinander fluchtende Bohrungen (20b, 43, 44) in der Mutter mit Blockiernase (20), im Anschlußstück (6 bis 9) bzw. in der Unterseite der Aufnahme (2 bis 5) ausgebildet sind, welche Bohrungen zur Durchführung einer Schraube (50) zur Befestigung, eines Kabelschuhs (42) oder einer Stromschiene auf dem genannten Anschlußstück (6 bis 9) dienen.
  4. Vorrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß an der Rückseite des Schutzschalters eine Klemmenabdeckung (41) befestigt ist, die in Höhe jeder Klemme eine Öffnung (40) zur Durchführung der Zuleitung aufweist, und die genannte Klemmschraube (23) in Bewegungsrichtung mit einer Schutzblende (33) verbunden ist, die dazu dient, beim Anziehen der Schraube (23) die zugehörige Öffnung (40) in der Abdeckung (41) teilweise zu verschließen.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die genannte Blende (33) als L-förmiges Teil ausgebildet ist, dessen einer Schenkel (33a) zwischen dem Klemmschuh (24) und der Oberseite (34) des Rahmens (14), frei drehbar auf dem unteren Teil der Schraube (23) gelagert ist und dessen anderer Schenkel (33b) zur Oberseite des Rahmens (14) hin gerichtet ist.
  6. Vorrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Klemmschuh (24) durch eine Crimpverbindung an einem Ende des Schafts der Schraube (23) befestigt ist.
  7. Vorrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß jeder Aufnahme (2 bis 5) ein zusätzliches Anschlußstück (46) zugeordnet ist, das dazu dient, mit einer externen Vorrichtung, beispielsweise einer Spannungs-Signalleuchte elektrisch verbunden zu werden.
  8. Vorrichtung nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Klemmenabdeckung (41) an der Rückseite des Schutzschalters mit Hilfe von an der Innenseite der Abdeckung (41) ausgebildeten Stegen (41a) befestigt ist, die mit in der Rückwand des Schaltgerätegehäuses ausgebildeten, entsprechend geformten Nuten (41b) zusammenwirken.
  9. Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die Befestigungsnuten (41b) für die Abdeckung (41) einen T-förmigen Querschnitt aufweisen und jeweils zwischen zwei aneinandergrenzenden Aufnahmen senkrecht zur Längsachse des Schaltgeräts angeordnet sind.
  10. Schaltgerät wie beispielsweise ein Schutzschalter, das an mindestens einer seiner beiden breiten Seitenflächen Klemmenaufnahmen (2 bis 5) mit darin angeordneten Anschlußstücken (6 bis 9) aufweist, dadurch gekennzeichnet, daß es mindestens eine Anschlußvorrichtung nach irgendeinem der Ansprüche 1 bis 9 umfaßt.
  11. Schaltgerät nach Anspruch 10, dadurch gekennzeichnet, daß es mehrere Anschlußvorrichtungen nach irgendeinem der Ansprüche 1 bis 9 umfaßt und daß anstelle mindestens einer der Klemmschrauben mit Klemmschuh (23) eine Schraube mit Endkuppe (22) verwendet wird, die mit einem Anschlußstück (6) zusammenwirkt, in dem die genannten Vertiefungen (29 bis 32) ausgebildet sind.
EP96941726A 1995-12-20 1996-12-10 Vorrichtung zum anschliessen eines aussenleiters, wie ein kabel zu eine kontaktfläche eines elektrisches gerät Expired - Lifetime EP0868737B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9515511 1995-12-20
FR9515511A FR2742918B1 (fr) 1995-12-20 1995-12-20 Dispositif de raccordement d'un conducteur exterieur tel un cable a une plage de contact d'un appareil electrique
PCT/FR1996/001964 WO1997022986A1 (fr) 1995-12-20 1996-12-10 Dispositif de raccordement d'un conducteur exterieur, tel un cable a une plage de contact d'un appareil electrique

Publications (2)

Publication Number Publication Date
EP0868737A1 EP0868737A1 (de) 1998-10-07
EP0868737B1 true EP0868737B1 (de) 2001-10-31

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ID=9485971

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96941726A Expired - Lifetime EP0868737B1 (de) 1995-12-20 1996-12-10 Vorrichtung zum anschliessen eines aussenleiters, wie ein kabel zu eine kontaktfläche eines elektrisches gerät

Country Status (13)

Country Link
EP (1) EP0868737B1 (de)
CN (1) CN1088539C (de)
BR (1) BR9612476A (de)
DE (1) DE69616590T2 (de)
EA (1) EA000329B1 (de)
ES (1) ES2164933T3 (de)
FR (1) FR2742918B1 (de)
HK (1) HK1011892A1 (de)
HU (1) HU225122B1 (de)
TN (1) TNSN96160A1 (de)
TR (1) TR199801185T2 (de)
TW (1) TW353820B (de)
WO (1) WO1997022986A1 (de)

Families Citing this family (14)

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Publication number Priority date Publication date Assignee Title
IT1319573B1 (it) 2000-12-18 2003-10-20 Abb Ricerca Spa Elemento conduttore per la derivazione di alimentazione elettrica.
KR100379688B1 (ko) * 2001-03-28 2003-04-10 엘지산전 주식회사 전자접촉기의 조작전원 연결장치
DE10236790C1 (de) 2002-08-10 2003-10-16 Moeller Gmbh Elektrisches Schaltgerät
DE102010015304A1 (de) * 2010-04-15 2011-10-20 Siemens Aktiengesellschaft Klemme zum Verbinden eines Leiters mit einem Schalter
DE102011076563A1 (de) * 2011-05-26 2012-11-29 Siemens Aktiengesellschaft Rahmenklemmelement für elektromechanische Schaltgeräte
CN102881528B (zh) * 2012-09-25 2015-03-18 上海诺雅克电气有限公司 一种断路器
CN202816824U (zh) 2012-09-25 2013-03-20 上海诺雅克电气有限公司 一种断路器
DE102013002009A1 (de) * 2013-02-06 2014-08-07 Abb Ag Installationsschaltgerät mit Anschlussklemme und Klemmenabdeckteil
FR3029699B1 (fr) 2014-12-08 2019-05-31 Schneider Electric Industries Sas Dispositif de raccordement electrique comportant une sortie auxiliaire et appareil de commutation comportant un tel dispositif.
EP3406952B1 (de) * 2017-05-22 2019-11-06 HILTI Aktiengesellschaft Schwenkbarer kabelhalter
RU181878U1 (ru) * 2017-09-05 2018-07-26 Открытое акционерное общество "ВНИИР-Прогресс" Зажим для присоединения внешних проводников
CN107910667B (zh) * 2017-11-30 2023-08-25 韩天翔 一种用于信号连接器的压线框及其成型工艺
CN114597103B (zh) * 2022-04-01 2023-09-08 广东电网有限责任公司 断路器
CN116679179B (zh) * 2023-08-03 2023-09-29 江苏鑫洋智能电力科技有限公司 一种局部放电在线监测装置及脉冲电流监测方法

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US3072881A (en) * 1959-08-20 1963-01-08 Anderson Electric Corp Collar bushing terminal
DE3149643C2 (de) * 1981-12-15 1986-07-03 Brown, Boveri & Cie Ag, 6800 Mannheim Druckscheibe für eine Klemmverbindung von elektrischen Leitern
US5005104A (en) * 1990-08-16 1991-04-02 Westinghouse Electric Corp. Clip-connected terminal conductor assembly
DE9302280U1 (de) * 1993-02-17 1993-04-01 Dehn + Soehne Gmbh + Co Kg, 8500 Nuernberg, De
DE9406108U1 (de) * 1994-04-13 1994-06-16 Kloeckner Moeller Gmbh Rahmenklemme für elektrische Geräte

Also Published As

Publication number Publication date
HK1011892A1 (en) 1999-07-23
EP0868737A1 (de) 1998-10-07
FR2742918A1 (fr) 1997-06-27
FR2742918B1 (fr) 1998-02-06
TW353820B (en) 1999-03-01
TR199801185T2 (xx) 1998-09-21
EA199800577A1 (ru) 1998-12-24
CN1207828A (zh) 1999-02-10
BR9612476A (pt) 1999-07-13
CN1088539C (zh) 2002-07-31
HUP9903704A3 (en) 2000-12-28
DE69616590T2 (de) 2002-06-27
ES2164933T3 (es) 2002-03-01
EA000329B1 (ru) 1999-04-29
HU225122B1 (hu) 2006-06-28
HUP9903704A2 (hu) 2000-03-28
DE69616590D1 (de) 2001-12-06
WO1997022986A1 (fr) 1997-06-26
TNSN96160A1 (fr) 1998-12-31

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