EP0951096B1 - Anschlussvorrichtung und Anschlussklemme ausgerüstet mit einer solchen Vorrichtung - Google Patents

Anschlussvorrichtung und Anschlussklemme ausgerüstet mit einer solchen Vorrichtung Download PDF

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Publication number
EP0951096B1
EP0951096B1 EP99410027A EP99410027A EP0951096B1 EP 0951096 B1 EP0951096 B1 EP 0951096B1 EP 99410027 A EP99410027 A EP 99410027A EP 99410027 A EP99410027 A EP 99410027A EP 0951096 B1 EP0951096 B1 EP 0951096B1
Authority
EP
European Patent Office
Prior art keywords
pad
accessory
terminal
tunnel
conductor
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
EP99410027A
Other languages
English (en)
French (fr)
Other versions
EP0951096A1 (de
Inventor
Robert Diconne
Bernard Lepretre
Didier Philippe
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 EP0951096A1 publication Critical patent/EP0951096A1/de
Application granted granted Critical
Publication of EP0951096B1 publication Critical patent/EP0951096B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
    • 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
    • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
    • H01R4/489—Clamped connections, spring connections utilising a spring, clip, or other resilient member spring force increased by screw, cam, wedge, or other fastening means
    • 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
    • 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
    • H01R4/26—Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
    • 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

Definitions

  • the present invention relates to an accessory for connecting an electrical conductor such as an aluminum cable to a contact pad of an electrical appliance such as a circuit breaker, and a terminal equipped with such an accessory.
  • Conventional terminals are designed to connect copper cables to the ranges of devices such as circuit breakers, but are not suitable for connecting aluminum cables.
  • the user when he wishes to use aluminum cables, is required to replace the kit formed by the cage and the screw with another kit adapted to the connection of aluminum cables.
  • the cable is brought into contact with the beach by a steel cage moved in translation by the terminal screw.
  • the copper pad and the aluminum cage have respectively two opposite grooves forming elongate claws able to pass through the layer of alumina covering the cable, so as to improve the contact between the beach and the cage.
  • the terminal is constituted by an aluminum block comprising on the one hand an elongated passage for the passage of the track and on the other hand a threaded orifice intended for the passage of the terminal screw also made of aluminum.
  • the bottom wall of the cage has a U-shaped section so as to adapt to the shape of the cable, and the screw has a curved end so that the cable is trapped between the bottom of the cage and the screw.
  • all the components being made of aluminum there is no differential expansion. The lack of differential expansion of the various elements, and the fact that the cable is surrounded tightly satisfactorily solve the problem of expansion of aluminum cables and alumina formation on the cable.
  • the present invention solves these problems and proposes a connection accessory making it possible to use standard terminals to make the connection of aluminum cables in a simple and reliable manner.
  • connection accessory according to claim 1.
  • the aforementioned pad has a substantially U-shaped cross section.
  • This particular form of pad makes it possible to obtain a good quality of electrical contact.
  • the aforementioned pad has on its face facing the conductor, ridges extending perpendicularly to the longitudinal direction of the conductor.
  • the pad is fixed on the beach by means of a support, said support comprising an elastic blade fixed by one of its ends on the pad and having a bent portion under the pad extending substantially parallel to said pad, so as to allow the elastic clamping of the range between the pad and the curved portion.
  • the accessory being intended to be mounted in the cage of an electrical terminal, it further comprises at least one lug extending from the plane of the bent portion in a direction inclined with respect to said plane. away from the pad, said at least one leg being supported on a wall of the cage so as to absorb the differences in expansion between the various elements involved in tightening.
  • the at least one leg is integral with the blade.
  • the support comprises three legs arranged in a triangle.
  • the curved portion has on its face facing the pad a boss adapted to allow the mounting of the pad on beaches of different thicknesses.
  • the invention also relates to a terminal equipped with an accessory comprising the previously mentioned features taken alone or in combination.
  • the terminal may be of the fixed cage or mobile cage type.
  • the cage has in its bottom wall a recess adapted to receive the (the) tab (s) of an accessory.
  • a terminal 5 intended to be mounted in a housing 2 provided in the rear part of a circuit breaker 3 to make the connection of an electric cable 6 on the range 4 of the circuit breaker.
  • This terminal is formed mainly by a metal block 5 of substantially parallelepipedal shape comprising an elongate passage 5b intended to receive the aforementioned range 4, and comprises in its upper part, a threaded orifice in which is screwed a screw 7 said terminal screw adapted to tightening the cable 6 on the range 4.
  • This screw 7 is accessible from the upper part of the device and has at its end located inside the terminal 5, a shoe 8 having claws 8a for cooperate with complementary recesses 4a provided in the range 4.
  • this terminal 5 is equipped with a connection accessory 9 intended to be used to make the connection of an aluminum cable to the beach.
  • this accessory 9 comprises a shoe 10 mounted on a support 11, the assembly being intended to be resiliently fixed on the range 4 of the circuit breaker.
  • This pad 10 has a substantially U-shaped section and has on its face 14 for receiving the conductor 6, a set of ridges 12 extending perpendicular to the direction of the cable 6 when introduced into the terminal.
  • the support 11 is formed by an elastic blade fixed by one end 11b, at one end of the pad 10, and folded twice substantially at right angles so as to form a bent portion 11a extending under the pad 10 substantially parallel to the pad 10.
  • the curved portion 11a of the blade comprises three tongues or lugs 11c, 11d, 11e integrally formed with the elastic blade and extending in a direction inclined with respect to the plane of the bent part forming an angle ⁇ of about 30 ° with this plane.
  • These tabs are intended to bear at their end on the bottom wall 5c of a recess 5a provided in the terminal 5 for housing these tabs.
  • bent portion 11a has on its face facing the pad 10 a boss 11f adapted to allow both the mounting of the pad 10 in a range of 2.5 mm that a range of 1.6mm.
  • the screw 7 and its pad 8 will be made of steel, while the block 5 will be made of aluminum.
  • the blade of the support 11 will be made of stainless spring steel and riveted to the shoe 10 of the accessory, which pad will be advantageously made of tinned copper.
  • the terminal of the circuit breaker comprises a cage 13 mounted to move in translation in the terminal housing 2 of the apparatus between a disconnection position and a position in which the cage 13 makes the cable 6 tight. on the beach (not shown).
  • the block 5 is first introduced into the rear portion 3 of the apparatus by sliding said block 5 in the corresponding housing 2.
  • the accessory 9 is mounted on the 4, so that the range 4 is elastically retained between the pad 10 and the curved portion 11a of the elastic blade.
  • the conductor 6 is then introduced into the passage 5b of the block and deposited on the pad 10.
  • the screwing of the terminal screw 7 has the effect of applying the shoe 8 with claws 8a on the cable 6 and to perform the clamping of the conductor 6 on the beach 4.
  • the U-shape of the pad 10 makes it possible to contain the strands of the cable between the shoe 8 with claws of the screw 7 and the pad 10 of the accessory 9 in order to avoid their profusion.
  • the flexible tabs or tabs (11c, 11d, 11e) have the role of maintaining a constant pressure on the thread to prevent loosening of the cage screw under the effect of differences in expansion of the aluminum cable and steel cage screw. They also reduce the risk of loosening the screw under the effect of vibration.
  • connection operation by means of a device according to Figure 5 is carried out in the same manner as previously described for the first embodiment, except that it is the cage 13 which moves in translation and not the screw and which makes the tightening of the cable, which is interposed between the shoe 10 of the accessory and the cage 13.
  • This accessory makes it possible to use the standard terminals (currently provided for copper cables) for connecting the aluminum cables while maintaining a satisfactory electrical contact quality.

Landscapes

  • Breakers (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Multi-Conductor Connections (AREA)

Claims (11)

  1. Zubehörteil (9) zum Anschluss eines elektrischen Leiters wie z.B. eines Aluminiumkabels (6) an ein Anschlussstück (4) eines elektrischen Schaltgerätes wie z.B. eines Leistungsschalters, welches Teil einen Klemmschuh (10) aus einem leitenden Material umfasst, wobei der genannte Klemmschuh dazu ausgelegt ist, lösbar auf dem Anschlussstück (4) befestigt zu werden und einen Leiter (6) aufzunehmen, der mit Hilfe eines Klemmmittels unter dem Klemmschuh (10) festgeklemmt werden soll, um den elektrischen Kontakt zwischen dem Anschlussstück (4) und dem Kabel (6) herzustellen, dadurch gekennzeichnet, dass der Klemmschuh (10) mit Hilfe eines Trägers auf dem Anschlussstück (4) befestigt wird, welcher Träger ein Federblatt (11) umfasst, das mit einem (11b) seiner Enden am Klemmschuh (10) befestigt ist und einen unter den Klemmschuh (10) gebogenen Abschnitt (11a) aufweist, der annähernd parallel zum genannten Klemmschuh (10) verläuft, dergestalt dass eine elastische Verklemmung des Anschlussstücks (4) zwischen dem Klemmschuh (10) und dem umbogenen Abschnitt (11a) ermöglicht wird.
  2. Zubehörteil nach Anspruch 1, dadurch gekennzeichnet, dass der Klemmschuh (10) einen annähernd U-förmigen Querschnitt aufweist.
  3. Zubehörteil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass auf der dem Leiter (6) zugewandten Seite (14) des genannten Klemmschuhs (10) Riefen (12) ausgebildet sind, die senkrecht zur Längsachse des Leiters (6) verlaufen.
  4. Zubehörteil nach irgendeinem der vorhergehenden Ansprüche zur Montage im Klemmenrahmen einer Anschlussklemme, dadurch gekennzeichnet, dass es außerdem mindestens eine aus der Ebene des umbogenen Abschnitts (11a) schräg herausstehende, vom Klemmschuh (10) weg weisende Lasche (11c, 11d, 11e) aufweist, welche mindestens einfach vorhandene Lasche (11c, 11d, 11e) sich an einer Wand des Rahmens abstützt, derart dass sie Ausdehnungsunterschiede zwischen den einzelnen an der Klemmverbindung beteiligten Komponenten kompensiert.
  5. Zubehörteil nach Anspruch 4, dadurch gekennzeichnet, dass die mindestens einfach vorhandene Lasche (11c, 11d, 11e) einstückig mit dem Federblatt (11) ausgeführt ist.
  6. Zubehörteil nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass der Träger drei zu einem Dreieck angeordnete Laschen (11c, 11d, 11e) aufweist.
  7. Zubehörteil nach irgendeinem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der umbogene Abschnitt (11a) auf seiner dem Klemmschuh (10) zugewandten Seite eine Auswölbung (11f) aufweist, die dazu dient, die Montage des Klemmschuhs (10) auf Anschlussstücken unterschiedlicher Dicke zu ermöglichen.
  8. Klemme mit einem Rahmen (5), der ein Zubehörteil (9) nach irgendeinem der Ansprüche 1 bis 7 umfasst.
  9. Klemme nach Anspruch 8 mit einem feststehenden Rahmen (5), welcher Rahmen (5) eine Öffnung zur Durchführung einer Klemmschraube (7) zur Verklemmung des Leiters (6) umfasst, welche Klemme mit einem Zubehörteil (9) nach irgendeinem der Ansprüche 1 bis 7 ausgerüstet ist.
  10. Klemme nach Anspruch 9 mit einem zwischen einer Stellung, in der der Leiter auf dem Anschlussstück (4) festgeklemmt ist, und einer Trennstellung verschiebbaren Rahmen (13), welche Klemme mit einem Zubehörteil (9) nach irgendeinem der Ansprüche 1 bis 7 ausgerüstet ist.
  11. Klemme mit einem Rahmen nach Anspruch 8, dadurch gekennzeichnet, dass im Bodensteg des Rahmens (5) eine Ausnehmung (5a) ausgebildet ist, die dazu ausgelegt ist, als Auflagefläche für die Lasche(n) (11c, 11d, 11e) eines Zubehörteils (9) nach Anspruch 4 zu dienen.
EP99410027A 1998-04-17 1999-03-31 Anschlussvorrichtung und Anschlussklemme ausgerüstet mit einer solchen Vorrichtung Expired - Lifetime EP0951096B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9805122A FR2777703B1 (fr) 1998-04-17 1998-04-17 Accessoire de raccordement et borne equipee d'un tel accessoire
FR9805122 1998-04-17

Publications (2)

Publication Number Publication Date
EP0951096A1 EP0951096A1 (de) 1999-10-20
EP0951096B1 true EP0951096B1 (de) 2006-06-14

Family

ID=9525613

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99410027A Expired - Lifetime EP0951096B1 (de) 1998-04-17 1999-03-31 Anschlussvorrichtung und Anschlussklemme ausgerüstet mit einer solchen Vorrichtung

Country Status (15)

Country Link
US (1) US6231405B1 (de)
EP (1) EP0951096B1 (de)
CN (1) CN1147896C (de)
BR (1) BR9901276A (de)
CA (1) CA2267514C (de)
CZ (1) CZ297140B6 (de)
DE (1) DE69931838T2 (de)
EA (1) EA001671B1 (de)
ES (1) ES2264250T3 (de)
FR (1) FR2777703B1 (de)
HU (1) HUP9901206A3 (de)
ID (1) ID23603A (de)
NO (1) NO991806L (de)
PL (1) PL192765B1 (de)
ZA (1) ZA992740B (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19951789A1 (de) * 1999-10-27 2001-05-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Anschlussklemme
DE10018352C1 (de) * 2000-04-13 2001-09-27 Siemens Ag Klemme
US9172167B2 (en) * 2004-11-20 2015-10-27 Al Cop Llc Junction failure inhibiting connector
DE202005014577U1 (de) * 2005-09-14 2005-11-10 Friedrich Göhringer Elektrotechnik GmbH Anschlussklemme für eine Sammelschiene
US7384317B1 (en) * 2006-12-21 2008-06-10 General Electric Company Multi-terminal block for electronic devices having superimposed conductor connecting levels
FR2933242B1 (fr) * 2008-06-30 2010-08-27 Schneider Electric Ind Sas Borne electrique a vis, bornier comportant une telle borne electrique et appareil electrique comportant un tel bornier
US7909633B1 (en) * 2009-09-15 2011-03-22 Fisher-Rosemount Systems, Inc. Wire connection apparatus
DE102011081855A1 (de) * 2011-08-31 2013-02-28 Siemens Aktiengesellschaft Adapter für eine Klemmvorrichtung
CN103177909B (zh) * 2011-12-26 2016-03-30 西门子公司 接线装置
CN102881528B (zh) * 2012-09-25 2015-03-18 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
AU2013206510B2 (en) * 2013-06-25 2017-11-09 Societe Industrielle De Construction D'appareils Et De Materiel Electriques Connection nozzle for insulated electrical power supply cable and manufacturing method of this connection nozzle
DE102014213907A1 (de) * 2014-07-17 2016-01-21 Siemens Aktiengesellschaft Schalter und aufschiebbarer Einsatz für einen Schalter
FR3046702B1 (fr) * 2016-01-08 2019-07-26 Tyco Electronics Services Gmbh Borne de connexion pour appareil electrique equipee d'une cage de serrage en materiau amagnetique
CN111478083B (zh) * 2020-04-16 2021-04-20 中国电建集团贵阳勘测设计研究院有限公司 一种便于拆装的接线端子

Family Cites Families (9)

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US3124409A (en) * 1964-03-10 electrical connector
CH310050A (de) * 1953-02-12 1955-09-30 Woertz Oskar Elektrische Verbindungs- und Abzweigklemme.
GB1084525A (en) * 1964-12-01 1967-09-27 Ft Products Ltd Improvements in and relating to fasteners especially for securing cables to a terminal plate
US3611249A (en) * 1968-10-16 1971-10-05 Magnum Electric Corp Completely mechanical solderless electrical terminal assembly for connecting a wire to a circuit board
AU463883B2 (en) * 1971-06-01 1975-07-23 British Insulated Callender's Cables Limited Improvements in or relating to electric terminal assemblies and to electric terminals therefor
DE4026037C2 (de) * 1990-08-17 1994-02-17 Abb Patent Gmbh Anschlußklemme
US5226634A (en) * 1990-08-31 1993-07-13 Amp Incorporated Platform spring
DE69204754T2 (de) * 1991-06-14 1996-05-02 Molex Inc Klemmleiste für gedruckte Leiterplatten.
US5296646A (en) * 1992-04-03 1994-03-22 The Whitaker Corporation Protector module for telephone line junction box

Also Published As

Publication number Publication date
EA001671B1 (ru) 2001-06-25
BR9901276A (pt) 2000-01-11
NO991806D0 (no) 1999-04-15
CN1147896C (zh) 2004-04-28
EA199900309A3 (ru) 2000-04-24
HU9901206D0 (en) 1999-06-28
CN1233069A (zh) 1999-10-27
FR2777703B1 (fr) 2002-11-29
CZ136399A3 (cs) 1999-11-17
ID23603A (id) 2000-05-04
EP0951096A1 (de) 1999-10-20
NO991806L (no) 1999-10-18
DE69931838D1 (de) 2006-07-27
PL192765B1 (pl) 2006-12-29
CA2267514A1 (en) 1999-10-17
PL332449A1 (en) 1999-10-25
CA2267514C (en) 2007-06-19
EA199900309A2 (ru) 1999-10-28
ES2264250T3 (es) 2006-12-16
HUP9901206A2 (hu) 1999-12-28
HUP9901206A3 (en) 2000-10-30
ZA992740B (en) 1999-10-18
US6231405B1 (en) 2001-05-15
CZ297140B6 (cs) 2006-09-13
DE69931838T2 (de) 2006-11-30
FR2777703A1 (fr) 1999-10-22

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