EP1968161B1 - Agencement destiné au contact d'un conducteur électrique contenant de l'aluminium - Google Patents

Agencement destiné au contact d'un conducteur électrique contenant de l'aluminium Download PDF

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Publication number
EP1968161B1
EP1968161B1 EP20080002899 EP08002899A EP1968161B1 EP 1968161 B1 EP1968161 B1 EP 1968161B1 EP 20080002899 EP20080002899 EP 20080002899 EP 08002899 A EP08002899 A EP 08002899A EP 1968161 B1 EP1968161 B1 EP 1968161B1
Authority
EP
European Patent Office
Prior art keywords
conductor
clamping
contact element
cones
axial direction
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.)
Not-in-force
Application number
EP20080002899
Other languages
German (de)
English (en)
Other versions
EP1968161A2 (fr
EP1968161A3 (fr
Inventor
Gerhard Lindner
Udo Dr. Mayer
Thomas Noetzel
Helmut Dr. Steinberg
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.)
Nexans SA
Original Assignee
Nexans SA
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 Nexans SA filed Critical Nexans SA
Publication of EP1968161A2 publication Critical patent/EP1968161A2/fr
Publication of EP1968161A3 publication Critical patent/EP1968161A3/fr
Application granted granted Critical
Publication of EP1968161B1 publication Critical patent/EP1968161B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/5016—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a cone
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • 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
    • H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
    • H01R4/52—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw which is spring loaded
    • 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

Definitions

  • the invention relates to an arrangement for contacting an aluminum-containing electrical conductor, consisting of a fixed around the conductor herumgenegenden, metallic contact element to which at least one secondary electrical conductor is connected ( DE 198 21 630 C1 ).
  • the aluminum-containing conductors used therein are either made entirely of aluminum or an aluminum alloy, or they are aluminum wires surrounded by a copper sheath, which are known as copper-clad aluminum wires.
  • a significant advantage of such electrical conductors, which may be embodied as solid conductors or as stranded conductors with a larger number of wires stranded together, is their lower weight compared to copper.
  • a connecting element for two electrical conductors consists of two elongated housings with conically narrowed ends, in which tapered clamping bodies are attached. Each of the two conductors is fixed in one of the housing by two such clamp body, which abut in mounting position with their outer surfaces on the respective housing.
  • the mutually facing clamping body of the two housings are connected by a cylindrical bolt.
  • the conductor is constructed as a stranded conductor made of copper-clad aluminum wires.
  • the fixed by crimping on the conductor contact element has, relative to the enclosed conductor, either in the axial direction extending slots or it is wavy. Thermal expansion stresses occurring during extreme temperature fluctuations are thereby to be compensated elastically.
  • the invention has for its object to make the initially described arrangement so that the fixed connection between the contact element and the conductor is ensured in the long term.
  • the contact element of this arrangement is easy to mount by sliding on the electrical conductor.
  • the spring element is compressed as much as possible by axial pressure, whereby it is simultaneously biased for its subsequent work function.
  • the spring element is relieved. It pushes then the two clamping sleeves in the axial direction apart, so that they lay firmly around a respective clamping wedge and thereby press the same to the head.
  • This pressure is constantly maintained, even if the aluminum of the conductor flows and the same thereby reduces its diameter.
  • the clamping wedges are also constantly tracked by the spring element for fixed contact with the conductor when different variations of conductor and contact element occur due to temperature fluctuations. By acting in the axial direction of the spring element thus the clamping sleeves are always applied so that they compress the respective clamping wedge and thus press firmly against the head.
  • the inner surfaces of the clamping wedges are made slightly tapered, with the advantage that the slopes of the inner surface and outer surface of the clamping wedges extend with opposite pitch. The thus furthest projecting edge of the clamping wedges is thereby pressed deeper into the conductor. It can also be broken by an oxide layer lying around the conductor. This is especially true when this edge of the clamping wedges is sharp-edged.
  • Fig. 1 the end of a conductor 1 freed from its insulation 2 is shown, which is constructed from a multiplicity of wires stranded together.
  • the wires can be made of aluminum or an aluminum alloy or copper-plated Be executed aluminum wires. It can also be a solid conductor of the same materials used.
  • an electrical contact element K is to be attached, which in Fig. 1 only schematically indicated.
  • At least one secondary conductor 3 is connected to the contact element K. It goes in an enlarged view of the FIGS. 2 and 3 out.
  • the contact element K consists of two clamping wedges 4 and 5, whose radial dimensions are variable, and of two surrounding same clamping sleeves 6 and 7. Between the clamping sleeves 6 and 7, at least one acting in the axial direction of the spring element 8 is attached.
  • the spring element 8 consists in a preferred embodiment of at least one wave-shaped ring made of spring steel. But it can also be arranged as a spring element 8 distributed in the circumferential direction between the clamping sleeves 6 and 7 two or more springs.
  • the clamping wedges 4 and 5 are in mounting position on the conductor 1, as it is in the FIGS. 2 and 3 is shown. They have conical outer surfaces, while the clamping sleeves 6 and 7 have corresponding conical inner surfaces, with which they bear against the outer surfaces of the clamping wedges 4 and 5.
  • the clamping wedges 4 and 5 are in the mounting position next to or behind each other on the conductor 1, with opposite course of their conical outer surfaces, so that their smaller faces are facing each other.
  • the voltage applied to the outer surfaces of the clamping wedges 4 and 5 clamping sleeves 6 and 7 press in the radial direction to the same, when the clamping sleeves 6 and 7, an axial force in the direction of the arrows 9 and 10 is exercised. Such a force is generated by the spring element 8.
  • each clamping wedge 4 or 5 according to the 6 and 7 of two sections 12 and 13, which are separated by axially extending gaps 14 and 15 from each other.
  • Each of the sections 12 and 13 extends for example over an angle of 170 °.
  • the inner surface or inner surfaces of the clamping wedges 4 and 5 or their sections 12 and 13 may be cylindrical throughout or have a partially cylindrical shape. But they can also be designed slightly conical, as it is for the clamping wedge 5 in the FIGS. 2 and 3 is drawn.
  • the slope of these conical inner surfaces is advantageously opposite to the slope of the outer surfaces. The furthest in the direction of the conductor 1 projecting edge of the clamping wedges 4 and 5 is then pressed into the mounting position deeper into the conductor 1. In this case, an oxide layer surrounding the conductor 1 can be broken, in particular if this edge is made sharp-edged.
  • the clamping wedges 4 and 5 consist of a compatible with the material of the conductor 1, highly electrically conductive metal, such as a mechanically stable aluminum alloy.
  • the clamping sleeves 6 and 7 may be made of the same material as the clamping wedges 4 and 5. But it can also be used another metal.
  • the continuing conductor 3 is preferably connected to one of the clamping wedges 4 or 5 electrically conductive.
  • the clamping wedge 5 have on its outer surface a corresponding recess for receiving the conductor 3.
  • the continuing conductor 3 can also be connected to one of the clamping sleeves 6 or 7 electrically conductive.
  • All parts of the contact element K can be accommodated captive in a mountable or divisible housing 16 made of plastic or metal, as it is in Fig. 8 is indicated schematically.
  • the contact element K To mount the contact element K to a conductor 1, the same is pushed onto the end freed from its insulation 2 until it has an in Fig. 2 achieved working position has reached.
  • the spring element 8 is compressed by axial pressure on the clamping sleeves 6 and 7 as much as possible, so that the clamping wedges 4 and 5 are relieved during assembly of the contact element K.
  • clamping wedges 4 and 5 are constantly pressed against the conductor 1, even if the diameter is slightly reduced, for example, by flowing the aluminum under pressure or by different extensions of conductor 1 and contact element K with temperature changes.
  • Fig. 3 shows in this sense an opposite Fig. 2 nachgewishede position of the clamping sleeves 6 and 7 on the clamping wedges 4 and 5 with a corresponding "extended" spring element 8.
  • the displacement of the clamping sleeves 6 and 7 and the extension of the spring element 8 are shown greatly exaggerated for better understanding. Also, this displacement or extension is in the range of a few microns according to the above statements.

Landscapes

  • Suspension Of Electric Lines Or Cables (AREA)
  • Installation Of Bus-Bars (AREA)

Claims (6)

  1. Arrangement pour établir le contact avec un conducteur électrique (1) contenant de l'aluminium, composé d'un élément de contact (K) métallique à enrouler à demeure autour du conducteur et auquel est raccordé au moins un conducteur électrique (3) de continuité, caractérisé en ce
    - que l'élément de contact (K) se compose de deux clavettes de serrage (4, 5) disposées autour du conducteur (1) en position de montage et reposant contre celui-ci, dont les dimensions radiales sont modifiables et qui présentent une surface extérieure qui s'étend en forme de cône, et de deux douilles de serrage (6, 7), entourant respectivement une clavette de serrage et possédant une surface intérieure qui s'étend en forme de cône qui repose à chaque fois sur la surface extérieure d'une clavette de serrage, les clavettes de serrage (4, 5) étant disposées l'une à côté de l'autre dans le sens de l'axe du conducteur (1) avec une projection dirigée en sens inverse de leurs surfaces extérieures coniques, avec les petites surfaces frontales se faisant face, et
    - qu'au moins un élément ressort (8) agissant dans le sens de l'axe du conducteur (1) est disposé entre les deux douilles de serrage (6, 7).
  2. Arrangement selon la revendication 1, caractérisé en ce que chaque clavette de serrage (4, 5) se compose de deux pièces partielles (12, 13) qui sont séparées l'une de l'autre par des interstices (14, 15) qui s'étendent dans le sens axial.
  3. Arrangement selon la revendication 1, caractérisé en ce que chaque clavette de serrage (4, 5) présente une fente (11) traversante qui s'étend dans le sens axial.
  4. Arrangement selon l'une des revendications 1 à 3, caractérisé en ce que la surface intérieure des clavettes de serrage (4, 5) est exécutée avec une projection de forme légèrement conique.
  5. Arrangement selon l'une des revendications 1 à 4, caractérisé en ce que le conducteur de continuité (3) est fixé de manière électriquement conductrice à une clavette de serrage (4, 5).
  6. Arrangement selon l'une des revendications 1 à 4, caractérisé en ce que le conducteur de continuité (3) est fixé de manière électriquement conductrice à une douille de serrage (6, 7).
EP20080002899 2007-03-07 2008-02-16 Agencement destiné au contact d'un conducteur électrique contenant de l'aluminium Not-in-force EP1968161B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007011096A DE102007011096A1 (de) 2007-03-07 2007-03-07 Anordnung zum Kontaktieren eines Aluminium enthaltenden elektrischen Leiters

Publications (3)

Publication Number Publication Date
EP1968161A2 EP1968161A2 (fr) 2008-09-10
EP1968161A3 EP1968161A3 (fr) 2011-10-26
EP1968161B1 true EP1968161B1 (fr) 2012-06-27

Family

ID=39454193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080002899 Not-in-force EP1968161B1 (fr) 2007-03-07 2008-02-16 Agencement destiné au contact d'un conducteur électrique contenant de l'aluminium

Country Status (2)

Country Link
EP (1) EP1968161B1 (fr)
DE (1) DE102007011096A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103124004B (zh) * 2013-03-04 2015-07-22 甘国强 导电线缆连接器
CN106654627A (zh) * 2016-01-15 2017-05-10 赵牧青 一种电力架线金具
CN105633633A (zh) * 2016-01-15 2016-06-01 胡小青 一种高压电力架线金具
CN105846142B (zh) * 2016-01-15 2020-06-26 乐清市华尊电气有限公司 一种用于电力线路的高压金具
CN106159586B (zh) * 2016-08-30 2018-03-30 镇江安邦电子有限公司 一种分体式电子连接器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2166458A (en) * 1937-11-11 1939-07-18 Electroline Company Connector
FR882790A (fr) * 1942-01-30 1943-06-15 Organe de connexion pour conducteurs électriques en aluminium
DE1005325B (de) * 1952-06-05 1957-03-28 Walter Reinecken Dr Ing Muffe zur Herstellung leicht loesbarer Verbindungen von Draht- und Stangenenden
FR68084E (fr) * 1955-11-18 1958-03-27 Silec Liaisons Elec Perfectionnements aux pièces de raccordement des conducteurs électriques ou d'autres pièces métalliques massives, câblées ou tubulaires
DE1123005B (de) * 1960-07-04 1962-02-01 Alois Schiffmann Dipl Kfm Unter Keilwirkung arbeitende Abspannklemme
US3374511A (en) * 1966-01-10 1968-03-26 Cable Cover Ltd Cable grip
US5682796A (en) * 1996-05-02 1997-11-04 Teleflex Incorporated Push pull control with opposing collet adjustment
DE19821630C1 (de) 1998-05-14 1999-09-16 Gerhard Ziemek Anschlußteil für elektrische Leiter
GB0104935D0 (en) * 2001-02-28 2001-04-18 Sicame Electrical Dev Ltd Electrical conductor connector

Also Published As

Publication number Publication date
EP1968161A2 (fr) 2008-09-10
DE102007011096A1 (de) 2008-09-11
EP1968161A3 (fr) 2011-10-26

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