EP2273618A1 - Anschlussvorrichtung zum crimpen ein elektrisches Kabel und Herstellungsverfahren für eine solche Vorrichtung. - Google Patents

Anschlussvorrichtung zum crimpen ein elektrisches Kabel und Herstellungsverfahren für eine solche Vorrichtung. Download PDF

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Publication number
EP2273618A1
EP2273618A1 EP10168965A EP10168965A EP2273618A1 EP 2273618 A1 EP2273618 A1 EP 2273618A1 EP 10168965 A EP10168965 A EP 10168965A EP 10168965 A EP10168965 A EP 10168965A EP 2273618 A1 EP2273618 A1 EP 2273618A1
Authority
EP
European Patent Office
Prior art keywords
tubular portion
sleeve
insert
tubular
ring
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Withdrawn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
EP10168965A
Other languages
English (en)
French (fr)
Inventor
Eric Gery
Jérôme Jeambrun
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.)
Mecatraction SAS
Original Assignee
Mecatraction 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 Mecatraction SAS filed Critical Mecatraction SAS
Publication of EP2273618A1 publication Critical patent/EP2273618A1/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Withdrawn legal-status Critical Current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
    • H01R4/10—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
    • H01R4/203—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 having an uneven wire-receiving surface 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
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • 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 connection devices to be crimped on a terminal section of electric cable.
  • the lug described by these documents comprises, in addition to a conductive element having a tubular portion, a sleeve disposed inside the tubular portion and adapted to receive in its hollow the end section of the cable.
  • the sheath has a plurality of perforations and is made of a material harder than aluminum. The sheath is thus able to deform the terminal section during a crimping of the tubular portion and the sleeve on the end section so that the end section of aluminum is embedded in the perforations.
  • the incrustation in the perforations of the sheath makes it possible to break the layer of alumina which has formed in contact with the air.
  • the unoxidized aluminum thus comes into direct contact with the sheath. This provides a good electrical continuity between the terminal and the cable (we know that alumina is an electrical insulator).
  • the lug described by the aforementioned documents also comprises, around the end of the lug by which is introduced the stripped end section of cable, a flared ring acting as a funnel to facilitate the insertion of the cable end section, especially when it is a flexible cable formed of a multitude of strands.
  • the invention aims to improve this type of connection device both in the manufacture and in the use.
  • a crimp connection device on a bare end section of aluminum core electrical cable comprising a conductive element having a tubular portion and having an insertion opening through which it is intended to introduce into said portion.
  • tubular said terminal section comprising a flared ring delimiting said insertion opening and comprising a sleeve disposed inside said tubular portion and adapted to receive, in its hollow, said terminal section, said sleeve having a plurality of perforations and being made of a material harder than aluminum so that said sleeve is able to deform the terminal section during crimping the tubular portion and the sheath on said end section with said aluminum core which is embedded in said perforations; characterized in that the sheath and the flared ring are formed by a one-piece insert.
  • the sleeve and the flared ring are formed in one piece reduces the number of components of the device according to the invention and thus allows to rationalize its manufacture.
  • the fact that the flared ring is in one piece with the sheath is favorable to the conditions in which it is deformed during crimping on the end section of electric cable.
  • connection device 1 illustrated on the Figures 1 to 14 comprises a lug 2, here made of copper, and a plug 22.
  • the lug 2 comprises a conductive element 3 and a monoblock insert 9.
  • the conductive element 3 comprises a tubular portion 4 connected to a flat portion 6 by a transition portion 8.
  • the flat portion 6 is a contact area of generally parallelepiped shape. It has an orifice 7 adapted to receive a threaded rod belonging to an electrical connection terminal (not shown) for example provided with a support flange. To ensure electrical contact between the terminal and the terminal 2, the flat portion 6 is clamped between the support flange and a nut screwed onto the threaded rod.
  • the tubular portion 4 has a constant outer diameter throughout its length.
  • the monoblock insert 9 is here nickel-plated brass. Other materials are possible, such as copper-based alloys.
  • the insert 9 comprises a sleeve 11 of circular section located inside the tubular portion 4 and a flared collar 12.
  • the sleeve 11 has an outer diameter similar to the internal diameter of the tubular portion 4.
  • the flared ring 12 has the same profile as the end of the portion 4 opposite to the transition portion 8.
  • the ring 12 defines an insertion opening 5 in the insert 9 and therefore in the tubular portion 4.
  • the flared ring 12 facilitates the insertion of a stripped end section 15 ( figures 9 and 10 ) an electric cable 14 through the insertion opening 5.
  • the insert 9 is made of a material harder than the aluminum of the core 17 of the electric cable 14 intended to be crimped in the lug 2.
  • the sheath 11 of the insert 9 has a plurality of perforations 10.
  • the tubular portion 4, adapted to receive the stripped end portion 15 of the electric cable 14 through the opening 5, is partially filled with a contact grease 21 (illustrated on the sole figure 2 ) to improve the electrical connection between the core 17, the sheath 11 and the conductive element 3.
  • the opening 5 is closed by a plug 22 , here disposable.
  • the plug 22 encloses the outer wall of the tubular portion 4.
  • the conductive element 3 of the lug 2 is made from a metal tube whose cylindrical wall has a diameter and a thickness corresponding to those of the tubular portion 4, which tube is flattened to form the flat portion 6.
  • At least one shoulder 18 is formed on the inner surface of the tubular portion 4, here two shoulders diametrically opposed.
  • the deformation of the tubular portion 4 to form each shoulder 18 creates an imprint 19 outside the tubular portion 4.
  • the insert 9 is obtained from a perforated flat strip section 20 ( figure 3 ) which is curved to form a sleeve 24 having a slot 13 over its entire length ( figure 4 ).
  • the bushing 24 is of circular section. It is introduced into the tubular portion 4 through its opening located opposite the transition portion 8. The position of the sleeve 24 in the tubular portion 4 is fixed by the internal shoulders 18, on which the sleeve 24 abuts at its end, its end located on the side of the transition portion 8, so that a portion of the sleeve forms a sleeve of circular section 11 extending inside the tubular portion 4 and that another part forms a pre-ring 25 of the same section as the sleeve 11, partially disposed beyond the tubular portion 4.
  • the insertion of the sleeve 24 is here carried out by means of a punch 26 around which the sleeve 24 is disposed.
  • the punch 26 is then inserted into the tubular portion 4, until the sleeve 24 abuts on the shoulders 18.
  • the pre-ring 25 is also flared by means of the punch 26, inserted in the tubular portion 4.
  • the punch 26 has a first portion cylindrical 27 of a diameter equal to the inner diameter of the sleeve 24 and a second cylindrical portion 28 of a larger diameter.
  • the two cylindrical portions 27, 28 of the punch are connected by a curved zone 29 so that when the punch 26 is introduced into the tubular portion 4, the curved zone 29 abuts against the pre-ring 25 and deforms and flares it against the edge of the tubular portion 4, which is also curved, which facilitates the development of the pre-ring 25.
  • a lug 2 having an insert 9 is thus obtained.
  • the maintenance of the insert 9 is ensured by its own elasticity which tends to open it, thus pressing it against the inner surface of the tubular portion 4.
  • the pre-ring 25 of the sleeve 24 is flared beforehand and it is directly the insert 9 which is introduced into the tubular portion 4 until it abuts against the shoulders 18.
  • the plug 22 is removed before the insertion of the end section 15.
  • the lug 2 is adapted to cooperate with an electric cable 14 with an aluminum core 17 covered on its surface with an insulating layer 16.
  • the terminal section 15 of this cable 14 is stripped, that is, that is, the insulation 16 is removed at this level.
  • the stripped end portion 15 is placed inside the sleeve of circular section 11 by inserting it into the tubular portion 4, through the opening 5 surrounded by the ring 12. Its flared character makes it easier to insert the stub. terminal 15, by orienting the strands that make up the cable 14 towards the inside of the tubular portion 4.
  • tubular portion 4 is crimped in a known manner in a crimping device 30 having a pair of jaws 35 and 36.
  • the crimped portion 31 is shaped with a section B.
  • Such a crimping section has the advantage of allowing the conformity check by simply measuring the thickness of the crimped portion 31.
  • Aluminum being an easily corrodable material, it is important to seal the lug 2 once crimped.
  • the lug 102 is similar to the lug 2, but it further comprises a tubular extension 132.
  • the tubular extension 132 has a diameter greater than that of the tubular portion 104, and is connected to it by a transition portion 133 which surrounds the flare ring 112.
  • the plug 122 is disposed in the tubular extension 132.
  • the extension 132 houses a non-stripped portion 134 of the cable 114.
  • the sealing of the lug 102 is then ensured by also crimping a portion of the tubular extension 132 with this non stripped 134 of the cable 114 ( Figure 16 ).
  • the insulator 116 of the cable 114 then acts as a seal.
  • the device 101' comporte a plug 122' having a tearable membrane 123 ', which eliminates the need to remove the plug 122' during the insertion of an electric cable 114 'in the pod 102' .
  • the cable 114 ' is then inserted into the tubular portion 104' through the plug 122 'by piercing the tearable wall 123'.
  • the plug 122 ' is interposed between the portion 134' of the cable 144 'and the extension 132', which is conducive to sealing.
  • This variant is useful in the case where the insulation 116 'of the cable 114' does not have a surface condition or a constitution suitable for directly obtaining the liquid tightness.
  • the figure 19 illustrates a connection 201 connecting two electrical cables.
  • the same numerical references were used as for device 1, to which 200 were added.
  • connection device 201 In the following description of the connection device 201, reference is made for simplicity to the tubular portions 204 and 244, but it will be understood that on the figure 19 these portions have already been crimped and are therefore no longer tubular.
  • connection device 201 is here a connection between a cable 214 aluminum core 217 and a cable 245 core copper.
  • the coupling 201 has a tubular portion 204 for receiving a cable such as 214.
  • This tubular portion is connected by an intermediate portion 243 to an additional tubular portion 244 to receive a cable such as copper core cable 245.
  • the tubular portions 204, 244 and intermediate 243 are formed in one piece.
  • the tubular portions 204, 244 are crimped onto the electrical cables 214, 245 in the same manner as previously described.
  • a heat-shrinkable sheath 238 is used.
  • the intermediate portion 243 is arranged to be sealed, that is to say to prevent a liquid or a gas from passing from the additional tubular portion 244 to the tubular portion 204, so that even if a liquid such as water or a gas such as moist air enters the additional portion 244 housing the cable 214, this liquid and / or this gas will not damage the 214 aluminum core cable 217.
  • the two cables are of the same material, for example, if the part that we see on the left of the intermediate portion 243 is replaced by a part identical to the part that is seen on the right, two aluminum core cables.
  • the cable such as 214 and / or the cable such as 245 is replaced by several cables.
  • the conductive elements 3, 103, 103 'and 203 are each obtained from a tube which is flattened locally to form respectively the flat portion 6, 106 or 106' and the intermediate portion 243. To make liquid tight the flat end 6, 106 or 106 ', in particular its free edge and the periphery of the orifice 7, 107 or 107', is then applied a suitable surface coating.
  • the conductive element is obtained from a block of material that is not tubular.
  • the tube used is an extruded tube. It is also possible to use a tube obtained from a flat strip by bending this strip so that its longitudinal slices are brought facing one another and then welding to one another the slices placed opposite.
  • the perforations 10, 110 and 110 'of the insert 9, 109, 109' or 209 are made by removal of material.
  • the material is retained to form an annular projection around each perforation on the inner side of the insert.
  • the perforations are circular in outline but alternatively another form, for example prismatic, is used.
  • connection device comprises a connection portion to another shaped electrical element.
  • the flat portion such as 6, 106 or 106 'and differently from the tubular portion such as 244, for example a flat portion without an orifice such as 7, 107 or 107'.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
EP10168965A 2009-07-08 2010-07-08 Anschlussvorrichtung zum crimpen ein elektrisches Kabel und Herstellungsverfahren für eine solche Vorrichtung. Withdrawn EP2273618A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0954741A FR2947960B1 (fr) 2009-07-08 2009-07-08 Dispositif de connexion a sertir pour cable electrique et procede de fabrication d'un tel dispositif

Publications (1)

Publication Number Publication Date
EP2273618A1 true EP2273618A1 (de) 2011-01-12

Family

ID=41381824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10168965A Withdrawn EP2273618A1 (de) 2009-07-08 2010-07-08 Anschlussvorrichtung zum crimpen ein elektrisches Kabel und Herstellungsverfahren für eine solche Vorrichtung.

Country Status (2)

Country Link
EP (1) EP2273618A1 (de)
FR (1) FR2947960B1 (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102893458A (zh) * 2010-05-14 2013-01-23 矢崎总业株式会社 用于将电线连接到压接端子的结构
EP2706615A1 (de) 2012-09-07 2014-03-12 Mecatraction Verfahren zur Herstellung einer Bördelverbindungsvorrichtung auf einem blanken Endstück eines Elektrokabels, und eine solche Verbindungsvorrichtung
CN106711627A (zh) * 2017-01-24 2017-05-24 南京康尼新能源汽车零部件有限公司 一种铝导线抗蠕变压接端子
CN110521061A (zh) * 2017-04-28 2019-11-29 株式会社自动网络技术研究所 电线的连接结构及线束的制造方法
FR3095086A1 (fr) * 2019-04-12 2020-10-16 Aptiv Technologies Limited Procédé de fabrication d’un contact de puissance mâle et contact de puissance mâle
KR102627193B1 (ko) * 2023-05-10 2024-01-18 강곤 전기 배선용 접속재
KR102627198B1 (ko) * 2023-05-10 2024-01-18 강곤 전기 배선용 접속재
KR102627190B1 (ko) * 2023-05-10 2024-01-18 강곤 전기 배선용 접속재의 제조방법

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3063392B1 (fr) 2017-02-28 2019-04-19 Mecatraction Dispositif de connexion a sertir sur un troncon terminal de cable, comportant une enveloppe conductrice pourvue d’une paroi separant deux logements

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1164100A (en) * 1967-09-13 1969-09-10 Amp Inc Terminal for Connection to Aluminium Wire
US3955044A (en) * 1970-12-03 1976-05-04 Amp Incorporated Corrosion proof terminal for aluminum wire
GB1434144A (en) * 1973-02-20 1976-05-05 Amp Inc Coaxial cable connector
EP0635901B1 (de) * 1993-07-19 1997-10-08 AEROSPATIALE Société Nationale Industrielle Verfahren zum Anschliessen eines elektrischen Kabels an einem Anschlusselement und das Anschlusselement selbst
US5749756A (en) * 1995-10-27 1998-05-12 The Whitaker Corporation Sealed corrosion-proof crimped terminal of splice
US7413489B1 (en) * 2007-06-21 2008-08-19 Tyco Electronics Brasil Ltda. Copper to aluminum bimetallic termination

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1164100A (en) * 1967-09-13 1969-09-10 Amp Inc Terminal for Connection to Aluminium Wire
US3955044A (en) * 1970-12-03 1976-05-04 Amp Incorporated Corrosion proof terminal for aluminum wire
GB1434144A (en) * 1973-02-20 1976-05-05 Amp Inc Coaxial cable connector
EP0635901B1 (de) * 1993-07-19 1997-10-08 AEROSPATIALE Société Nationale Industrielle Verfahren zum Anschliessen eines elektrischen Kabels an einem Anschlusselement und das Anschlusselement selbst
US5749756A (en) * 1995-10-27 1998-05-12 The Whitaker Corporation Sealed corrosion-proof crimped terminal of splice
US7413489B1 (en) * 2007-06-21 2008-08-19 Tyco Electronics Brasil Ltda. Copper to aluminum bimetallic termination

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102893458A (zh) * 2010-05-14 2013-01-23 矢崎总业株式会社 用于将电线连接到压接端子的结构
US9172151B2 (en) 2010-05-14 2015-10-27 Yazaki Corporation Structure for connecting electric wire to crimp terminal
CN102893458B (zh) * 2010-05-14 2015-11-25 矢崎总业株式会社 用于将电线连接到压接端子的结构
EP2706615A1 (de) 2012-09-07 2014-03-12 Mecatraction Verfahren zur Herstellung einer Bördelverbindungsvorrichtung auf einem blanken Endstück eines Elektrokabels, und eine solche Verbindungsvorrichtung
FR2995458A1 (fr) * 2012-09-07 2014-03-14 Mecatraction Procede de fabrication d'un dispositif de connexion a sertir sur un troncon terminal denude de cable electrique et un tel dispositif de connexion
CN106711627A (zh) * 2017-01-24 2017-05-24 南京康尼新能源汽车零部件有限公司 一种铝导线抗蠕变压接端子
CN110521061A (zh) * 2017-04-28 2019-11-29 株式会社自动网络技术研究所 电线的连接结构及线束的制造方法
FR3095086A1 (fr) * 2019-04-12 2020-10-16 Aptiv Technologies Limited Procédé de fabrication d’un contact de puissance mâle et contact de puissance mâle
US11133636B2 (en) 2019-04-12 2021-09-28 Aptiv Technologies Limited Method for manufacturing a male power terminal, and male power terminal
KR102627193B1 (ko) * 2023-05-10 2024-01-18 강곤 전기 배선용 접속재
KR102627198B1 (ko) * 2023-05-10 2024-01-18 강곤 전기 배선용 접속재
KR102627190B1 (ko) * 2023-05-10 2024-01-18 강곤 전기 배선용 접속재의 제조방법

Also Published As

Publication number Publication date
FR2947960B1 (fr) 2011-09-09
FR2947960A1 (fr) 2011-01-14

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