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WO2009096591A1 - Cosse à sertir - Google Patents

Cosse à sertir Download PDF

Info

Publication number
WO2009096591A1
WO2009096591A1 PCT/JP2009/051827 JP2009051827W WO2009096591A1 WO 2009096591 A1 WO2009096591 A1 WO 2009096591A1 JP 2009051827 W JP2009051827 W JP 2009051827W WO 2009096591 A1 WO2009096591 A1 WO 2009096591A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductive part
barrel
aluminum
wire
groove
Prior art date
Application number
PCT/JP2009/051827
Other languages
English (en)
Inventor
Tadahisa Sakaguchi
Yasumichi Kuwayama
Original Assignee
Yazaki Corporation
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 Yazaki Corporation filed Critical Yazaki Corporation
Publication of WO2009096591A1 publication Critical patent/WO2009096591A1/fr

Links

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
    • H01R4/188—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 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

  • Electric wires formed of copper are generally used in wire harnesses which are arranged in a vehicle such as an automobile.
  • terminals are attached to the copper wires of the wire harnesses.
  • the terminals of this type are generally attached to the copper wires by press-clamping.
  • the compression rate is defined as a ratio between a sectional area of the conductive part before press-clamping and the sectional area after the press-clamping.
  • a crimp terminal for press-clamping an aluminum wire having a conductive part which is configured by a plurality of wire elements formed of aluminum or aluminum alloy twisted together comprising: a barrel part which press-fastens the conductive part, wherein a coating film, having agglutinating function against the aluminum and aluminum alloy, is formed on a contact surface of the barrel so as to bring into contact with the conductive part; wherein at least one groove, extending in a direction intersecting with an axial direction of the conductive part, is formed on the contact surface of the barrel; wherein a pair of slanted parts, extending in the axial direction of the conductive part, are arranged at both sides of the at least one groove on the contact surface of the barrel; and wherein the pair of slanted parts are slanted so as to have falling gradients in a direction away from the at least one groove.
  • the coating film is a tin plated coating film.
  • the conductive part which is compressed with the barrel fitted thereto by crimping enters into the groove, and is extended to both sides of the groove from the area where it has entered into the groove, thereby to slide along the slanted parts which are formed at both sides of the groove. Then, the oxidation layers on the surfaces of the wire elements which compose the conductive part are broken by friction, while the wire elements slide along the slanted faces, and the new born surfaces are exposed on the respective wire elements. In this manner, it is possible to sufficiently break the oxidation layers of the wire elements and to expose the new bom surfaces, without excessively enhancing the compression rate of the conductive part.
  • the coating film having the agglutinating function against aluminum and aluminum alloy is formed on the contact surface of the barrel, and the agglutination occurs between the new born surfaces exposed on the respective wire elements and the coating film, whereby the favorable contact resistance and press-clamping strength can be obtained.
  • Fig. 1 is a perspective view of a crimp terminal for an aluminum wire according to an embodiment of the invention.
  • Fig. 2 is a sectional view showing the crimp terminal in Fig. 1 in a state press-clamped to the aluminum wire.
  • Fig. 3 is a perspective view of a modification of the crimp terminal in
  • an aluminum wire 1 has a conductive part 2 which is configured by a plurality of wire elements 3 formed of aluminum or aluminum alloy twisted together.
  • An outer periphery of the conductive part 2 is covered with a sheath 4 which is formed of insulating material.
  • the sheath 4 is removed from the aluminum wire 1 by a determined length in a terminal end part of the aluminum wire 1 , and the conductive part 2 is exposed.
  • a terminal 10 to be press-clamped to the aluminum wire 1 is press-clamped to this terminal end part.
  • the aluminum alloy an alloy of aluminum and iron can be used as an example.
  • the alloy of aluminum and iron is preferably used, since it is excellent in strength (especially, tensile strength), as compared with simple aluminum.
  • the wire barrel 13 is formed in a substantially U-shape in cross section, having a bottom plate part 20 on which the conductive part 2 which is exposed in the terminal end part of the aluminum wire 1 is placed, and a pair of crimping pieces 21 continued from the bottom plate part 20 so as to clamp the conductive part 2 which is placed on the bottom plate part 20 from both sides.
  • the wire barrel 13 embraces therein the conductive part 2 in the terminal end part, and fitted to this conductive part 2 by crimping.
  • the insulation barrel 14 is formed in a substantially U-shape in cross section in the same manner as the wire barrel 13, having a bottom plate part 22 on which the sheath 4 which remains in the terminal end part of the aluminum wire 1 is placed, and a pair of crimping pieces 23 continued from the bottom plate part 22 so as to clamp the sheath 4 which is placed on the bottom plate part 22 from both sides.
  • the insulation barrel 14 embraces therein the sheath 4 in the terminal end part, and fitted to the sheath 14 by crimping. It is to be noted that the bottom plate part 22 of the insulation barrel 14 is continued from the bottom plate part 20 of the wire barrel 13.
  • the wire barrel 13 which embraces the conductive part 2 in the terminal end part is fitted to this conductive part 2 by crimping, and the insulation barrel 14 which embraces the sheath 4 in the terminal end part is fitted to this sheath 4 by crimping, whereby the terminal 10 is press-clamped to the aluminum wire 1.
  • the wire barrel 13 On an inner surface of the wire barrel 13, that is, a contact surface of the wire barrel 13 to be brought into contact with the conductive part 2, there are formed at least one groove 24 which extends in a direction intersecting with an axial direction of a press-clamping portion of the conductive part 2 to which the wire barrel 13 is fitted by crimping, and a pair of slanted parts 25a, 25b which respectively extend downwardly from the groove 24 toward the distal end side and the base end side of the press-clamping portion of the conductive part 2.
  • the groove 24 and the slanted parts 25a, 25b are provided on the contact surface of the bottom plate part 20.
  • the groove 24 extends in the direction perpendicularly intersecting with the axial direction of the press-clamping portion of the conductive part 2 in the embodiment as shown in Fig. 1
  • the groove 24 may extend in a direction diagonally intersecting with the axial direction.
  • the groove 24 and the slanted parts 25a, 25b are provided within a range of the bottom plate part 20 of the wire barrel 13 in the embodiment as shown in Fig. 1 , they may be provided over the bottom plate part 20 and a pair of the crimping pieces 21.
  • the only one groove 24 is shown in Fig. 1 , a plurality of the grooves 24 may be formed.
  • a coating film having agglutinating function against aluminum and aluminum alloy is formed at least on the contact surface of the wire barrel 13.
  • Such coating film is formed of metal, for example, which is softer than aluminum and aluminum alloy, and preferably includes a tin plated coating film.
  • the coating film has a thickness of 1.5 ⁇ m to 4.0 ⁇ m.
  • the terminal 10 having the above described structure is formed by stamping a sheet of sheet material having electrical conductivity such as copper alloy having tin plating on its surface into a determined shape, and by subjecting it to folding work.
  • the wire barrel 13 is fitted to the conductive part 2 by crimping, whereby the conductive part 2 is compressed, and the wire elements 3 which compose the conductive part 2 enter into the groove 24 formed on the contact surface of the wire barrel 13. Then, the wire elements 3 are extended in the axial direction to both sides of the groove 24 from the areas where they have entered into the groove 24, as base points, and slide along the slanted parts 25a, 25b which are formed at the both sides of the groove 24.
  • the groove 24, and the slanted parts 25a, 25b may be provided in such a manner that they protrude from the contact surface of the bottom plate part 20 of the wire barrel 13 as a whole.
  • the crimp terminal for the aluminum wire of the invention can provide to satisfy both decrease of the contact resistance and securance of the press-clamping strength between the conductive part of the aluminum wire and the barrel of the terminal.

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

L'invention porte sur une cosse à sertir pour un serrage par pression d'un fil d'aluminium ayant une partie conductrice qui est configurée par une pluralité de fils élémentaires faits d'aluminium ou d'un alliage d'aluminium torsadés ensemble, la cosse comprenant une partie fût qui fixe par pression la partie conductrice. Un film de revêtement, ayant une fonction d'agglutination contre l'aluminium et un alliage d'aluminium, est formé sur une surface de contact du fût de façon à être amené en contact avec la partie conductrice. Au moins une rainure, s'étendant dans une direction croisant une direction axiale de la partie conductrice, est formée sur la surface de contact du fût. Une paire de parties inclinées, s'étendant dans la direction axiale de la partie conductrice, sont agencées des deux côtés de l'au moins une rainure sur la surface de contact du fût. Les deux parties inclinées sont inclinées de façon à avoir des pentes descendantes dans un sens d'éloignement de l'au moins une rainure.
PCT/JP2009/051827 2008-01-28 2009-01-28 Cosse à sertir WO2009096591A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008016603A JP5030232B2 (ja) 2008-01-28 2008-01-28 アルミ電線用圧着端子
JP2008-016603 2008-01-28

Publications (1)

Publication Number Publication Date
WO2009096591A1 true WO2009096591A1 (fr) 2009-08-06

Family

ID=40512189

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/051827 WO2009096591A1 (fr) 2008-01-28 2009-01-28 Cosse à sertir

Country Status (2)

Country Link
JP (1) JP5030232B2 (fr)
WO (1) WO2009096591A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2495813A1 (fr) * 2009-10-28 2012-09-05 Yazaki Corporation Borne de sertissage
WO2012161292A1 (fr) * 2011-05-20 2012-11-29 Yazaki Corporation Structure de connexion d'une pièce de connexion par sertissage faite d'un fil électrique en aluminium et d'une borne métallique et procédé de fabrication de celle-ci
CN105723444A (zh) * 2013-10-28 2016-06-29 巴科股份有限公司 拼接显示器和组装其的方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5569763B2 (ja) * 2013-04-12 2014-08-13 株式会社オートネットワーク技術研究所 端子金具及び端子金具付き電線
JP2015082419A (ja) * 2013-10-23 2015-04-27 矢崎総業株式会社 圧着端子
JP2015090742A (ja) * 2013-11-05 2015-05-11 矢崎総業株式会社 圧着端子
JP6371333B2 (ja) 2016-05-20 2018-08-08 株式会社不二機販 アルミの凝着防止方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735331A (en) * 1972-04-19 1973-05-22 Ark Les Switch Corp Electrical connector
US20030111256A1 (en) * 1999-06-16 2003-06-19 Hidemichi Fujiwara Power cable for mobile and terminal for the power cable
JP2003249284A (ja) * 2002-02-25 2003-09-05 Auto Network Gijutsu Kenkyusho:Kk アルミ電線用圧着端子
WO2007060953A1 (fr) * 2005-11-24 2007-05-31 The Furukawa Electric Co., Ltd. Cosse a sertir pour toron en aluminium, structure de cosse de toron en aluminium dans laquelle est sertie la cosse a sertir

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735331A (en) * 1972-04-19 1973-05-22 Ark Les Switch Corp Electrical connector
US20030111256A1 (en) * 1999-06-16 2003-06-19 Hidemichi Fujiwara Power cable for mobile and terminal for the power cable
JP2003249284A (ja) * 2002-02-25 2003-09-05 Auto Network Gijutsu Kenkyusho:Kk アルミ電線用圧着端子
WO2007060953A1 (fr) * 2005-11-24 2007-05-31 The Furukawa Electric Co., Ltd. Cosse a sertir pour toron en aluminium, structure de cosse de toron en aluminium dans laquelle est sertie la cosse a sertir
EP1965464A1 (fr) * 2005-11-24 2008-09-03 The Furukawa Electric Co., Ltd. Cosse a sertir pour toron en aluminium, structure de cosse de toron en aluminium dans laquelle est sertie la cosse a sertir

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2495813A1 (fr) * 2009-10-28 2012-09-05 Yazaki Corporation Borne de sertissage
EP2495813A4 (fr) * 2009-10-28 2013-03-27 Yazaki Corp Borne de sertissage
US9054431B2 (en) 2009-10-28 2015-06-09 Yazaki Corporation Press bond terminal
WO2012161292A1 (fr) * 2011-05-20 2012-11-29 Yazaki Corporation Structure de connexion d'une pièce de connexion par sertissage faite d'un fil électrique en aluminium et d'une borne métallique et procédé de fabrication de celle-ci
US9022821B2 (en) 2011-05-20 2015-05-05 Yazaki Corporation Crimped connection of a wire with a terminal having vapor deposited film
CN105723444A (zh) * 2013-10-28 2016-06-29 巴科股份有限公司 拼接显示器和组装其的方法
US10152914B2 (en) 2013-10-28 2018-12-11 Barco N.V. Tiled display and method of assembling same
US10210794B2 (en) 2013-10-28 2019-02-19 Barco N.V. Flexible display tile and method of producing same
US10600355B2 (en) 2013-10-28 2020-03-24 Barco N.V. Tiled display and method of assembling same

Also Published As

Publication number Publication date
JP2009176672A (ja) 2009-08-06
JP5030232B2 (ja) 2012-09-19

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