EP0018863A1 - Elektrische Anschlussklemme zur Herstellung einer Pressverbindung für Aluminiumdraht - Google Patents

Elektrische Anschlussklemme zur Herstellung einer Pressverbindung für Aluminiumdraht Download PDF

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Publication number
EP0018863A1
EP0018863A1 EP80400425A EP80400425A EP0018863A1 EP 0018863 A1 EP0018863 A1 EP 0018863A1 EP 80400425 A EP80400425 A EP 80400425A EP 80400425 A EP80400425 A EP 80400425A EP 0018863 A1 EP0018863 A1 EP 0018863A1
Authority
EP
European Patent Office
Prior art keywords
sleeve
aluminium wire
crimp barrel
aluminium
crimp
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.)
Withdrawn
Application number
EP80400425A
Other languages
English (en)
French (fr)
Inventor
Alan Leslie Schildkraut
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.)
Bendix Corp
Original Assignee
Bendix Corp
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 Bendix Corp filed Critical Bendix Corp
Publication of EP0018863A1 publication Critical patent/EP0018863A1/de
Withdrawn legal-status Critical Current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
    • H01R4/10—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
    • H01R4/20—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 using a crimping sleeve
    • 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

Definitions

  • the present invention relates to an electrical crimp type termination for aluminium wire including an electrically conductive crimp barrel associated with means interposed between the inside surface of the crimp barrel and the outside surface of the aluminium wire to form a strong reliable electrical joint when crimped with the material of the crimp barrel and the aluminium wire.
  • Aluminium wire typically is only about 60 % as electrically conductive as copper wire of the same diameter but it is about one third the specific weight of copper and much less expensive. There are thus economic and technical advantages to using aluminium wire as electrical conductors. As a result aluminium wire has been used in some electrical wiring applications where copper wire might normally have been used.
  • aluminium wire has fallen out of favor as electrical conductor material due to the unreliability of electrical connections made to aluminium.
  • a non-electrically conductive aluminium oxide rapidly forms on the surface of clean aluminium.
  • some easy, convenient, inexpensive and quick means must be employed to break up the surface non-conductive aluminium oxide to expose the underlying aluminium and to simultaneously make a reliable electrical joint before oxide has a chance to reform over the newly cleaned surfaces.
  • the prior art means include copper alloy terminations, where the word termination includes connectors and the like, for aluminium wire having crimp barrels whose inner diameters include internal protrusions or perforated sleeves which, upon crimping the connector barrel, bite into the aluminium wire surface to break up and penetrate the oxide layer to bring clean aluminium into immediate and intimate electrical contact with the termination material.
  • Another means used to make electrical connection to aluminium wire has included a hard brittle plating, usually nickel, on the crimp barrel interior surface.
  • the brittle plating breaks up into a large plurality of small hard sharp electrically conductive particles to expose clean material beneath and also to abrade and bite through the oxide layer into and to expose clean aluminium which comes into immediate and intimate electrical contact with the connector.
  • Wire terminations are usually made of a relatively hard electrically conductive material, such as brass, copper, steel, bronze or beryllium copper, having a yield strength in excess of 1000 kg/cm 2 .
  • a relatively hard electrically conductive material such as brass, copper, steel, bronze or beryllium copper, having a yield strength in excess of 1000 kg/cm 2 .
  • the prior art means do not provide long term reliable electrical joints between aluminium and such relatively hard materials so that high resistance joints sometimes result producing a potentially dangerous condition.
  • aluminium wire has fallen into disfavor as electrical conductor material. This is unfortunate in light of the current rising price and uncertain supply of copper.
  • the present invention overcomes the disadvantages and limitations of the prior art arrangements by providing an electrical crimp type termination for aluminium wire which includes interposed between the inside surface of a relatively hard electrically conductive crimp barrel and the outside surface of the aluminium wire a sleeve made of a relatively soft electrically conductive material and having a bore coated with a thin hard brittle layer, the coated bore being adapted to fit over the aluminium wire and the outside surface of the sleeve being adapted to fit into the crimp barrel, so that crimping the crimp barrel causes the sleeve to be crimped with the material of the crimp barrel and the aluminium wire, thereby forming a strong reliable electrical joint by breaking the coated layer into many sharp particles to bite through and abrade the oxide surface of the aluminium wire to bring clean aluminium into intimate electrical contact with clean sleeve material and by additionally bringing the relatively hard barrel material into intimate electrical contact with the relatively soft sleeve material.
  • a termination such as connector 10 made according to the present invention is comprised of a pin contact member 12 and a sleeve 14.
  • Pin contact member 12 is similar or identical to the pin contact member known in the electrical connector art which terminates a single electrical lead or wire and which is positioned in a block of insulating material, normally in spaced relationship with a plurality of like pin contact members, to comprise an electrical connector.
  • Pin contact member 12 is designed to mate with a standard socket contact member (not shown) which is similarly positioned in a second block of insulating material in spaced relationship with a plurality of socket contact members to comprise the mating electrical connector.
  • the socket contact members can incorporate the means of the present invention.
  • Pin contact member 12 is a crimp connection device which here is comprised of a pin end 12a, a barrel end 12b and an intermediate collar 12c.
  • Pin contact member 12 is preferably formed in the usual manner, that is, machined from a relatively hard electrically conductive rodstock such as brass or beryllium copper as is standard in the art.
  • Barrel end 12b has an internal round crimpwell 12d.
  • a sleeve 14 has an external dimension 14a which fits easily within crimpwell 12d of pin contact member 12.
  • Aluminium wire 15, either a single strand or multistranded wire, has an external dimension such that wire 15 fits easily into bore 14b of sleeve14.
  • Sleeve 14 may be machined cylinder or, preferably, made of sheet stock which is rolled into a cylindrical shape with seam 14c.
  • Sleeve 14 is made of a relatively soft electrical material such as copper alloy CA145, annealed to a DPH hardness of 65 maximum if machined or copper alloy CA102 at 1/8 temper if rolled.
  • Bore 14b of sleeve 14 has deposited thereon a hard brittle and preferably continuous coating 18 such as mekel which is suitably electroplated.
  • Coating 18 not only provider a frangible means which will break up into a large number of small sharp particles when sleeve 14 is crimped but it also protects the underlying metal from corrosion and other contamination so that when coating 18 is fractured a clean pure metallic underlayer is exposed.
  • coating 18 was nickel applied by a standard l electroless nickel plating process at a thickness of 13/1000 mm to 14/1000 mm.
  • the hard brittle coating can be applied by other coating processes such as electrolytic plating, metal cladding and vapor deposition, for example.
  • another coating than nickel can be used to practice the invention, so long as the coating is hard and brittle, such as other brittle metals, ceramics, enamels and the like.
  • Fig. 3 where an aluminium wire 15 is seen assembled within sleeve 14 sandwiched within crimpwell 12d between the interior surface of the crimp barrel 12b and the exterior surface of the,wire.
  • Crimp barrel 12b is crimped in the conventional manner, producing crimp deformation 20 and simultaneously crimping sleeve 14 in a crimp deformation 22.
  • pin contact member 12 is electrically crimped and joined to sleeve 14 at interface 24.
  • coating 18 is shattered in a large plurality of sharp particles 26 which dig into and through the aluminium oxide layer to provide electrical communication between wire 15 and sleeve 14 (It should be noted that coating 18 and particles 26 are shown exaggerated in size for. clarity in this figure).
  • coating 18 and particles 26 are shown exaggerated in size for. clarity in this figure.
  • the shattered particles 26 also abrade the surface oxide layer of wire 15 to expose clean pure aluminium which, by crimping, is brought into high pressure intimate electrical contact with the newly exposed sleeve material. The result is the formation of an intermetallic and cold welding of the aluminium to the sleeve material at interface 28, resulting in a strong reliable electrically sound joint.

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  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
EP80400425A 1979-05-07 1980-03-31 Elektrische Anschlussklemme zur Herstellung einer Pressverbindung für Aluminiumdraht Withdrawn EP0018863A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US3661679A 1979-05-07 1979-05-07
US36616 1979-05-07

Publications (1)

Publication Number Publication Date
EP0018863A1 true EP0018863A1 (de) 1980-11-12

Family

ID=21889623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80400425A Withdrawn EP0018863A1 (de) 1979-05-07 1980-03-31 Elektrische Anschlussklemme zur Herstellung einer Pressverbindung für Aluminiumdraht

Country Status (2)

Country Link
EP (1) EP0018863A1 (de)
JP (1) JPS55150569A (de)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023880B1 (de) * 1979-08-01 1983-11-09 Siemens Aktiengesellschaft Presshülse für eine vorgefertigte Kabelgarnitur
GB2138199A (en) * 1983-03-09 1984-10-17 Icore Int Ltd An electrical cable
WO1993014535A1 (fr) * 1992-01-21 1993-07-22 Aerospatiale Procede de raccordement d'un cable electrique comportant une ame en metal leger sur un element d'extremite normalise, et piece de raccordement pour la mise en ×uvre de ce procede
EP1383201A1 (de) * 2002-07-17 2004-01-21 Souriau Bindungsverbesserungsverfahren für einen Kontakt zu Kabelstränden
WO2006000279A1 (de) * 2004-06-25 2006-01-05 Leoni Ag Elektrische kontaktverbindung und verfahren zum ausbilden einer solchen kontaktverbindung
WO2009002410A2 (en) * 2007-06-21 2008-12-31 Tyco Electronics Brasil Ltda Copper to aluminum bimetallic termination
EP1988604A3 (de) * 2007-05-01 2009-11-04 TRI-STAR TECHNOLOGIES (a California Partnership) Elektrische Kontaktbaugruppe mit einem Hülsenelement
EP2141771A1 (de) * 2008-07-03 2010-01-06 Lisa Dräxlmaier GmbH Kontaktierung von Leichtmetallleitungen
DE102008030274A1 (de) 2008-06-19 2010-03-25 Afl Europe Gmbh Leitungseinheit
WO2010066376A1 (de) * 2008-12-09 2010-06-17 Leoni Bordnetz-Systeme Gmbh Elektrische kontaktverbindung und verfahren zur herstellung einer elektrischen kontaktverbindung
DE102010032911A1 (de) 2010-07-30 2012-02-02 Wago Verwaltungsgesellschaft Mbh Leiteranschlusselement
EP2065981A3 (de) * 2007-10-30 2012-03-07 Hirschmann Automotive GmbH Verfahren zur Herstellung einer Halteschutzbuchse für eine kontaktteillose Steckverbindung
WO2013050328A3 (en) * 2011-10-07 2014-01-09 Tyco Electronics Amp Gmbh Crimped terminal
DE102012021332A1 (de) * 2012-10-31 2014-04-30 Abb Ag Anordnung von Kabeln in einem Anschlussstecker
US8876564B2 (en) 2010-03-19 2014-11-04 Yazaki Corporation Connection structure of crimping terminal to electric wire
US9252505B2 (en) 2011-09-01 2016-02-02 Autonetworks Technologies, Ltd. Terminal connector, electric wire with terminal connector, and method of connecting terminal connector and electric wire
JP6374630B1 (ja) * 2018-06-07 2018-08-15 ひさご電材株式会社 導線と接続端子との接続方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3992275B2 (ja) 2002-05-16 2007-10-17 オンキヨー株式会社 小型スピーカー
JP2011192586A (ja) * 2010-03-16 2011-09-29 Autonetworks Technologies Ltd 端子金具付き電線及びその製造方法
JP5418332B2 (ja) * 2010-03-17 2014-02-19 株式会社オートネットワーク技術研究所 端子金具付き電線
JP5539009B2 (ja) * 2010-05-14 2014-07-02 矢崎総業株式会社 圧着端子の電線に対する接続構造
JP5477650B2 (ja) * 2010-07-09 2014-04-23 株式会社オートネットワーク技術研究所 端子金具付き電線
JP2017111883A (ja) * 2015-12-14 2017-06-22 日立金属株式会社 圧着端子および端子付き電線
CN105931869B (zh) * 2016-06-07 2018-09-25 厦门艾卓工业设计有限公司 电力开关用的一体式静触头

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2815497A (en) * 1953-04-23 1957-12-03 Amp Inc Connector for aluminum wire
US3895851A (en) * 1973-08-23 1975-07-22 Amp Inc Brittle-surfaced connector

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2815497A (en) * 1953-04-23 1957-12-03 Amp Inc Connector for aluminum wire
US3895851A (en) * 1973-08-23 1975-07-22 Amp Inc Brittle-surfaced connector

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PRODUCT ENGINEERING, Vol. 45, Nr. 12, December 1974 New York (US) F. YEAPLE: "New designs for aluminium motors include fool-proof connectors", pages 19-22. * Page 21, first half; figures * *

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0023880B1 (de) * 1979-08-01 1983-11-09 Siemens Aktiengesellschaft Presshülse für eine vorgefertigte Kabelgarnitur
GB2138199A (en) * 1983-03-09 1984-10-17 Icore Int Ltd An electrical cable
WO1993014535A1 (fr) * 1992-01-21 1993-07-22 Aerospatiale Procede de raccordement d'un cable electrique comportant une ame en metal leger sur un element d'extremite normalise, et piece de raccordement pour la mise en ×uvre de ce procede
FR2686459A1 (fr) * 1992-01-21 1993-07-23 Aerospatiale Procede de raccordement d'un cable electrique comportant une ame en metal leger sur un element d'extremite normalise, et piece de raccordement pour la mise en óoeuvre de ce procede.
US5408743A (en) * 1992-01-21 1995-04-25 Societe Nationale Industrielle Et Aerospatiale Process for connecting an electric cable having a light metal core to a standardized end element
EP1383201A1 (de) * 2002-07-17 2004-01-21 Souriau Bindungsverbesserungsverfahren für einen Kontakt zu Kabelstränden
FR2842659A1 (fr) * 2002-07-17 2004-01-23 Framatome Connectors Int Procede d'amelioration d'une liaison entre un contact et des brins d'un cable
US7282679B2 (en) 2004-06-25 2007-10-16 Leoni Aktiengesellschaft Electrical contact connection and method for forming such a contact connection
WO2006000279A1 (de) * 2004-06-25 2006-01-05 Leoni Ag Elektrische kontaktverbindung und verfahren zum ausbilden einer solchen kontaktverbindung
EP1988604A3 (de) * 2007-05-01 2009-11-04 TRI-STAR TECHNOLOGIES (a California Partnership) Elektrische Kontaktbaugruppe mit einem Hülsenelement
WO2009002410A2 (en) * 2007-06-21 2008-12-31 Tyco Electronics Brasil Ltda Copper to aluminum bimetallic termination
WO2009002410A3 (en) * 2007-06-21 2009-02-12 Tyco Electronics Brasil Ltda Copper to aluminum bimetallic termination
EP2065981A3 (de) * 2007-10-30 2012-03-07 Hirschmann Automotive GmbH Verfahren zur Herstellung einer Halteschutzbuchse für eine kontaktteillose Steckverbindung
DE102008030274A1 (de) 2008-06-19 2010-03-25 Afl Europe Gmbh Leitungseinheit
EP2141771A1 (de) * 2008-07-03 2010-01-06 Lisa Dräxlmaier GmbH Kontaktierung von Leichtmetallleitungen
US7828610B2 (en) 2008-07-03 2010-11-09 Lisa Draexlmaier Gmbh Connector for use with light-weight metal conductors
WO2010066376A1 (de) * 2008-12-09 2010-06-17 Leoni Bordnetz-Systeme Gmbh Elektrische kontaktverbindung und verfahren zur herstellung einer elektrischen kontaktverbindung
RU2490763C2 (ru) * 2008-12-09 2013-08-20 Леони Борднетц-Зюстеме Гмбх Электрическое контактное соединение и способ создания электрического контактного соединения
CN102246353B (zh) * 2008-12-09 2013-12-25 莱尼电气系统有限公司 电接触连接部以及制造该电接触连接部的方法
US8876564B2 (en) 2010-03-19 2014-11-04 Yazaki Corporation Connection structure of crimping terminal to electric wire
DE102010032911A1 (de) 2010-07-30 2012-02-02 Wago Verwaltungsgesellschaft Mbh Leiteranschlusselement
DE102010032911B4 (de) * 2010-07-30 2012-08-23 Wago Verwaltungsgesellschaft Mbh Leiteranschlusselement
US9252505B2 (en) 2011-09-01 2016-02-02 Autonetworks Technologies, Ltd. Terminal connector, electric wire with terminal connector, and method of connecting terminal connector and electric wire
WO2013050328A3 (en) * 2011-10-07 2014-01-09 Tyco Electronics Amp Gmbh Crimped terminal
US9640876B2 (en) 2011-10-07 2017-05-02 Te Connectivity Germany Gmbh Crimped terminal
DE102012021332A1 (de) * 2012-10-31 2014-04-30 Abb Ag Anordnung von Kabeln in einem Anschlussstecker
JP6374630B1 (ja) * 2018-06-07 2018-08-15 ひさご電材株式会社 導線と接続端子との接続方法
JP2019212543A (ja) * 2018-06-07 2019-12-12 ひさご電材株式会社 導線と接続端子との接続方法

Also Published As

Publication number Publication date
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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Designated state(s): FR

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Effective date: 19820806

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Inventor name: SCHILDKRAUT, ALAN LESLIE