EP2001085A1 - Procédé de fabrication d'une liaison électrique conductrice - Google Patents

Procédé de fabrication d'une liaison électrique conductrice Download PDF

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Publication number
EP2001085A1
EP2001085A1 EP07290704A EP07290704A EP2001085A1 EP 2001085 A1 EP2001085 A1 EP 2001085A1 EP 07290704 A EP07290704 A EP 07290704A EP 07290704 A EP07290704 A EP 07290704A EP 2001085 A1 EP2001085 A1 EP 2001085A1
Authority
EP
European Patent Office
Prior art keywords
conductor
contact element
contact
tight
aluminum
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
EP07290704A
Other languages
German (de)
English (en)
Other versions
EP2001085B1 (fr
Inventor
Udo Dr. Dipl.-Chem. Mayer
Thomas Noetzel
Helmut Dr. Ing. 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
Priority to ES07290704T priority Critical patent/ES2357827T3/es
Priority to EP07290704A priority patent/EP2001085B1/fr
Priority to AT07290704T priority patent/ATE468629T1/de
Priority to DE502007003854T priority patent/DE502007003854D1/de
Publication of EP2001085A1 publication Critical patent/EP2001085A1/fr
Application granted granted Critical
Publication of EP2001085B1 publication Critical patent/EP2001085B1/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
    • H01R4/58—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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219—Sealing means between coupling parts, e.g. interfacial seal
    • H01R13/5221—Sealing means between coupling parts, e.g. interfacial seal having cable sealing means
    • 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
    • H01R4/10—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—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 effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping

Definitions

  • the invention relates to a method for producing an electrically conductive connection between an aluminum-containing electrical conductor and a contact part of an electrical or electronic device, in which a conductor is used, which consists of a plurality of stranded, aluminum-containing individual wires, of a Insulation are surrounded, with which the end of the conductor is freed from its insulation, with which at the end of the conductor an electrical contact element is fixed by crimping and with which the contact element with the Kunststofftei! is connected ( DE-OS 22 50 836 ).
  • Device in the context of the invention may be equipped with externally accessible contact parts units. But it may also be contact parts having coupling elements, such as connectors and mating connector.
  • Aluminum-containing conductors are increasingly used as a replacement for copper conductors, for example, in the automotive and aircraft technology.
  • the aluminum-containing conductors used therein are either entirely aluminum or an aluminum alloy.
  • the conductors may also have a central tensile element to increase their tensile strength.
  • a significant advantage of such electrical conductors is their lower weight compared to copper.
  • the lower electrical conductivity of the aluminum compared to copper is of minor importance for most applications.
  • the problem is considered to be the fact that aluminum reacts with oxygen, which very quickly a corresponding conductor surrounding, electrically insulating oxide layer is formed. Therefore, measures have repeatedly been taken to rupture the oxide layer for an electrically conductive connection to an electrical contact element to be attached to such a conductor and to surround the conductor treated therewith with a layer of electrically highly conductive material, for example with a tin layer.
  • a corresponding method for example, from the above-mentioned DE-OS 22 50 836 from 1972, with which an aluminum conductor surrounding oxide layer is broken in a tin bath by means of ultrasound, in which simultaneously a tin layer is applied to the conductor.
  • Other methods from the last 15 years go from the writings DE 102 23 397 B4 . DE 103 46 160 B3 . DE 103 60 614 B4 . DE 10 2005 030 248 B3 . WO 2005/055371 A1 and WO 2005/091439 A1 out.
  • contact elements are attached to the ends of aluminum conductors.
  • the oxide layers surrounding the conductor by means of ultrasound or mechanically and tin or zinc layers are applied with appropriate effort, for example, from an existing in a contact element stock of these materials, which are initially still melted.
  • the invention has for its object to simplify the initially described method.
  • the contact element to be attached to the end of an aluminum-containing conductor which is dimensioned as a function of parameters of the respective conductor, only needs to be used to be crimped on a commercially available tool on the ladder freed from its insulation. Prior treatment of the conductor is not required when using this method. In particular, the measure prescribed by the experts for more than 35 years is not applied, according to which the oxide surrounding the conductor must first be broken and the conductor then or simultaneously embedded in a completely closed, covering layer of good electrically conductive material.
  • a sealing element is advantageously applied before the crimping of the contact element on the insulation of the conductor, which optionally serves as a closure of a bore in a cover of the contact points.
  • Fig. 1 is shown as a conductor 1, a so-called stranded conductor, which is surrounded by an insulation 2. The end of the conductor 1 is stripped to a length provided for contacting purposes.
  • the conductor 1 consists of a plurality of individual wires 3, which are stranded together. Each individual wire 3 has aluminum or an aluminum alloy as the electrically conductive material.
  • an existing example of copper contact element 4 is fixed by crimping. It is formed in a preferred embodiment as a socket which is plugged onto a pin as a contact part of an electrical or electronic device.
  • a contact element 4 a pin could be used, which is inserted into a then designed as a socket contact part.
  • the contact element 4 and the contact part of a device can also be electrically conductively connected to one another in other ways, for example by soldering or welding.
  • the contact element 4 is dimensioned according to parameters of the conductor 1.
  • the crimping length L of the crimping zone 5 of the contact element 4 depends on the diameter of the conductor 1 and on the number of individual wires 3 thereof. It is in a practical embodiment between 1.0 mm and 6.0 mm and in a preferred embodiment between 2.0 mm and 4.0 mm.
  • the conductor 1 has in conventional design, for example, a lying between 0.5 mm 2 and 2.5 mm 2 cross-section.
  • the contact element 4 is crimped around the conductor 1 with a commercially available crimping tool. In this case, the individual wires 3 are mechanically deformed and squeezed so that their oxide layers are broken.
  • the thereby exposed conductive material (aluminum or aluminum alloy) is brought into firm contact with the contact element 4.
  • the thus equipped with the contact element 4 conductor 1 is immediately thereafter, optionally packed together with other, treated in the same way conductors, airtight and left until further processing in this package.
  • the stocked with the contact element 4 conductor 1 can be introduced in a next step in a plastic existing housing part 6 of a connector V.
  • the housing part 6 has in its wall a bore 7, through which the conductor 1 is inserted therethrough with attached contact element 4 until it is out of Fig. 5 has reached an apparent position.
  • the bore 7 is sealed moistureproof and gas-tight after performing the conductor 1.
  • a sealing element 8 is advantageously applied to the insulation 2 of the conductor 1.
  • a sealing element 8 is for example a plug made of plastic, such as silicone, or rubber, which is pushed onto the end of the insulation 2 of the conductor 1 before the crimping of the contact element 4.
  • a plug can be stepped and equipped with sealing blades.
  • the sealing element 8 and the corresponding stopper is moved after reaching the end position of the conductor 1 in the housing part 6 on the conductor 1 and on the insulation 2 and pressed into the bore 7 until it is firmly and immovably positioned in the same, as it in Fig. 5 is drawn.
  • the hole 7 is then moisture-tight and sealed gas-tight.
  • a populated with a housing part 6 conductor 1 is optionally airtight packed with other appropriately treated conductors and left until further processing in the package.
  • a conductor 1 with housing part 6 after Fig. 5 taken out of the packaging at its mounting point is then directly electrically connected to a contact part 9 of a device 10, which in the embodiment according to Fig. 5 a to the housing part 6 complementary housing part 11 is made of plastic, in which an electrical conductor 12 in the same manner as the conductor 1 in its housing part 6 is moisture-tight and gas-tight.
  • the conductor 12 is passed through a bore 13 of the housing part 11, which is sealed by a sealing element 8 corresponding to the sealing element 14.
  • the connector V after Fig. 5 is a connector.
  • Contact element 4 and contact part 9, which is connected as a pin or socket with the conductor 12, 6 and 11 are inserted into each other during assembly of the housing parts.
  • Plug connection is basically known. she is in Fig. 5 therefore not shown in more detail.
  • the housing part 11 is pushed over the housing part 6 until it is out of Fig. 5 has reached an apparent final position. A remaining between the housing parts 6 and 1 1 narrow gap is sealed by an O-ring 15 which is arranged in a circumferential groove of the housing part 6.
  • the connector V after Fig. 5 is explained as an exemplary embodiment of a plug connection between a contact element 4 and a contact part 9. The same procedure applies even if two or more conductors 1 and 12 or their contacts are to be connected to each other.
  • the contact elements 4 of such a connector for two or more conductors are then determined within the housing part 6 expedient in their position.
  • the connector V after Fig. 5 can also be completed when the sealing elements 8 and 14 and the housing parts 6 and 11 are first pushed separately from each other on the ladder 1 and 12 respectively.
  • the connection between contact element 4 and contact part 9 is then made in any manner, as described above.
  • the housing parts 6 and 11 are pushed over each other and the sealing elements 8 and 14 are finally pressed into the holes 7 and 13.
  • This process can also be carried out in a stepped manner by first bringing the housing part 6 into position and pressing the sealing element 8 into the bore 7. Only then are the housing part 11 pushed over the housing part 6 and the sealing element 14 is pressed into the bore 13.
  • a moisture-proof and gas-tight connection between a contact element 4 and a contact part 9 of a device 10 can also be realized if the device 10 is a unit enclosed by a housing, whose contact part 9 or contact parts is or are accessible from the outside.
  • a sealing element is expediently attached to the end face of the housing part 6, which bears in the mounting position hermetically sealed to the housing of the unit.
  • This embodiment also applies to two or more conductors. Again, this is analogous to the previous explanations any type of connection between contact element 4 and contact part 9 possible.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
EP07290704A 2007-06-06 2007-06-06 Procédé de fabrication d'une liaison électrique conductrice Not-in-force EP2001085B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES07290704T ES2357827T3 (es) 2007-06-06 2007-06-06 Procedimiento para la producción de un enlace conductor de la electricidad.
EP07290704A EP2001085B1 (fr) 2007-06-06 2007-06-06 Procédé de fabrication d'une liaison électrique conductrice
AT07290704T ATE468629T1 (de) 2007-06-06 2007-06-06 Verfahren zur herstellung einer elektrisch leitenden verbindung
DE502007003854T DE502007003854D1 (de) 2007-06-06 2007-06-06 Verfahren zur Herstellung einer elektrisch leitenden Verbindung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07290704A EP2001085B1 (fr) 2007-06-06 2007-06-06 Procédé de fabrication d'une liaison électrique conductrice

Publications (2)

Publication Number Publication Date
EP2001085A1 true EP2001085A1 (fr) 2008-12-10
EP2001085B1 EP2001085B1 (fr) 2010-05-19

Family

ID=38535489

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07290704A Not-in-force EP2001085B1 (fr) 2007-06-06 2007-06-06 Procédé de fabrication d'une liaison électrique conductrice

Country Status (4)

Country Link
EP (1) EP2001085B1 (fr)
AT (1) ATE468629T1 (fr)
DE (1) DE502007003854D1 (fr)
ES (1) ES2357827T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2607010A1 (fr) * 2011-12-23 2013-06-26 Nexans Procédé de soudage d'un conducteur électrique avec un élément de contact et connecteur utilisé dans ce procédé
EP2747205A1 (fr) * 2012-12-18 2014-06-25 Nexans Procédé de liaison électrique conductrice d'un conducteur torsadé avec un élément de contact
DE102011016556B4 (de) * 2011-04-08 2020-02-06 Kromberg & Schubert Kg Elektrische Kontakteinrichtung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3270464B1 (fr) 2016-07-13 2018-09-12 Nexans Procede de raccordement d'un element de contact a un conducteur electrique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916518A (en) * 1973-10-02 1975-11-04 Coatings Inc Method for making one-piece bimetallic connector
US5066242A (en) * 1990-10-15 1991-11-19 Molex Incorporated Environment-proof electrical connector assembly
US5749756A (en) * 1995-10-27 1998-05-12 The Whitaker Corporation Sealed corrosion-proof crimped terminal of splice

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3916518A (en) * 1973-10-02 1975-11-04 Coatings Inc Method for making one-piece bimetallic connector
US5066242A (en) * 1990-10-15 1991-11-19 Molex Incorporated Environment-proof electrical connector assembly
US5749756A (en) * 1995-10-27 1998-05-12 The Whitaker Corporation Sealed corrosion-proof crimped terminal of splice

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011016556B4 (de) * 2011-04-08 2020-02-06 Kromberg & Schubert Kg Elektrische Kontakteinrichtung
EP2607010A1 (fr) * 2011-12-23 2013-06-26 Nexans Procédé de soudage d'un conducteur électrique avec un élément de contact et connecteur utilisé dans ce procédé
EP2747205A1 (fr) * 2012-12-18 2014-06-25 Nexans Procédé de liaison électrique conductrice d'un conducteur torsadé avec un élément de contact

Also Published As

Publication number Publication date
ES2357827T3 (es) 2011-05-03
DE502007003854D1 (de) 2010-07-01
ATE468629T1 (de) 2010-06-15
EP2001085B1 (fr) 2010-05-19

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