WO2017212920A1 - Fil électrique à borne - Google Patents

Fil électrique à borne Download PDF

Info

Publication number
WO2017212920A1
WO2017212920A1 PCT/JP2017/019322 JP2017019322W WO2017212920A1 WO 2017212920 A1 WO2017212920 A1 WO 2017212920A1 JP 2017019322 W JP2017019322 W JP 2017019322W WO 2017212920 A1 WO2017212920 A1 WO 2017212920A1
Authority
WO
WIPO (PCT)
Prior art keywords
electric wire
terminal
crimped
wire
insulating coating
Prior art date
Application number
PCT/JP2017/019322
Other languages
English (en)
Japanese (ja)
Inventor
高信 嶋田
丈博 中田
悟史 森川
Original Assignee
株式会社オートネットワーク技術研究所
住友電装株式会社
住友電気工業株式会社
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 株式会社オートネットワーク技術研究所, 住友電装株式会社, 住友電気工業株式会社 filed Critical 株式会社オートネットワーク技術研究所
Publication of WO2017212920A1 publication Critical patent/WO2017212920A1/fr

Links

Images

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
    • 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 technology disclosed in this specification relates to a terminal-attached electric wire.
  • the holding force of the terminal with respect to the electric wire is not sufficient, and when the force in the direction of pulling out from the terminal is applied to the electric wire, the electric wire may come off from the terminal relatively easily.
  • the technology shown in the present specification has been conceived in view of the above-described problems, and an object thereof is to provide a terminal-attached electric wire having a high terminal holding force with respect to the electric wire.
  • the technology disclosed in the present specification is an electric wire with a terminal including an electric wire having a core wire covered with an insulating coating, and a terminal connected to an end of the electric wire, wherein the terminal extends in the extending direction of the electric wire.
  • a concave portion is provided on the surface of the crimping piece disposed on the insulating coating side,
  • the compression rate represented by the following formula (1) of the crimping region where the crimping piece is crimped among the core wires is 70% or more and less than 100%.
  • Compression rate ⁇ (Cross sectional area of electric wire after crimping) / (Cross sectional area of electric wire before crimping) ⁇ ⁇ 100 (%) (1) According to such a terminal-attached electric wire, it is possible to obtain a terminal-attached electric wire having a higher holding force of the terminal with respect to the electric wire as compared with the case of using a terminal having a form in which no recess is provided.
  • the mechanism is guessed as follows.
  • the edge of the recess bites into the insulation coating, so it becomes difficult to slip between the insulation barrel and the insulation coating, thereby forming the recess. It is considered that a better fixing force can be obtained when the compression rate is the same as that of a conventional terminal that is not used.
  • the core wire disposed inside the crimping region is crushed and damaged, and there is a risk of disconnection.
  • the portion of the insulating coating adjacent to the concave portion escapes into the concave portion when being compressed by the crimping piece, so that the core wire disposed inside the insulating coating is separated from the insulating coating. Excessive stress is suppressed.
  • the compression rate is preferably 70% or more and less than 100%, but more preferably in the range of 80% to 90%.
  • the electric wire with terminal may have the following configuration.
  • the recess may be a groove extending in a direction intersecting with the extending direction of the electric wire.
  • the relatively long hole edge of the groove opening bites into the insulating coating, and the terminal and the insulating coating become more difficult to slip, so that the holding power of the terminal to the electric wire is improved.
  • the core wire may be made of aluminum or an aluminum alloy. Aluminum wires are less likely to slip due to less elongation of the core wire, and higher holding power can be obtained.
  • This embodiment has illustrated the electric wire 30 with a terminal arranged, for example in a vehicle, and this electric wire 30 with a terminal is connected to the female terminal 10 and the female terminal 10, and is an electric wire pulled out back from the female terminal 10. 20 (see FIG. 1).
  • the left side in FIG. 1 is the front side
  • the right side is the rear side
  • the upper side is the upper side
  • the lower side is the lower side.
  • the lower right in FIG. 2 is the left and the upper left is the right.
  • the electric wire 20 has a structure in which, for example, a core wire 21 is formed by a stranded wire obtained by twisting a plurality of strands made of aluminum or aluminum alloy, and the core wire 21 is covered with an insulating coating 22 made of synthetic resin.
  • the insulation coating 22 of the terminal is peeled off, the core wire 21 is exposed forward from the insulation coating 22, and the female terminal 10 is connected to this terminal.
  • the female terminal 10 is formed by punching a base material made of a copper alloy and performing bending or the like. As shown in FIG. 1, a wire barrel connected to the terminal connecting portion 11 and the core wire 21 of the electric wire 20. 12, an insulation barrel 14 that is crimped to the insulating coating 22 of the electric wire 20, and a connecting portion 13 that connects the wire barrel 12 and the insulation barrel 14.
  • the terminal connection portion 11 is formed in a box shape having a rectangular tube shape, and a male terminal tab (not shown) is inserted therein to be electrically connected.
  • the wire barrel 12 is of an open barrel type, and as shown in FIG. 2, a pair of wire barrel pieces 12B extending from side to side rise from the left and right side edges of the bottom plate portion 12A. These wire barrel pieces 12B are crimped and electrically connected to the core wire 21 by being caulked inwardly with respect to the core wire 21 exposed from the insulating coating 22 at the front end portion of the electric wire 20. .
  • the insulation barrel 14 is also of an open barrel type, and is provided behind the wire barrel 12 with the connecting portion 13 interposed therebetween, and is a pair of insulation barrel pieces of a substantially rectangular shape having the same shape and the same size.
  • 14B (an example of a crimping piece) extends from the left and right side edges of the bottom plate portion 14A at positions that are symmetrical to each other and rises up so as to face each other.
  • the pair of insulation barrel pieces 14B extend from the bottom plate portion 14A in the left-right direction intersecting the extending direction X (front-rear direction) of the electric wire 20.
  • a groove portion extending continuously in a direction substantially orthogonal to the extending direction X of the electric wire 20. 14C is provided (see FIG. 3).
  • tip parts of a pair of insulation barrel piece 14B is the extending direction of the electric wire 20, as shown in FIG. It is notched obliquely so as to extend along X (front-rear direction) and is tapered.
  • the pair of insulation barrel pieces 14B are wound around the outer periphery of the insulating coating 22 of the electric wire 20 placed on the bottom plate portion 14A, and are crimped in the radial direction against the outer peripheral surface of the insulating coating 22. . Moreover, when crimping
  • the electric wire 20 in which the insulation coating 22 is peeled off at the terminal and the core wire 21 is exposed is placed on the upper surfaces of the bottom plate portions 12A and 14A of the wire barrel 12 and the insulation barrel 14 and the connecting portion 13.
  • the electric wire 20 is placed on the connecting portion 13 so that a boundary portion between the core wire 21 and the insulating coating 22 is disposed, and the position of the electric wire 20 in the front-rear direction with respect to the female terminal 10 is determined.
  • the pair of wire barrel pieces 12B in the wire barrel 12 are crimped so as to be wound inside the core wire 21 of the electric wire 20, and the pair of insulation barrel pieces 14B in the insulation barrel 14 are insulated and coated on the electric wire 20. Crimp so that it is wrapped around 22.
  • the pair of insulation barrel pieces 14B are placed on the outer periphery of the insulating coating 22 so that their tip portions overlap each other. Clamp while wrapping.
  • the wire barrel 12 is crimped and fixed to the core wire 21, and the insulation barrel 14 is crimped and fixed to the insulating coating 22, so that the female terminal 10 is attached to the electric wire 20.
  • the electric wire 30 is obtained.
  • the terminal 10 described above was formed by pressing a metal plate material having a thickness of 0.25 mm made of a copper member containing a copper alloy.
  • the groove portion 14C has an inclined shape in which the groove wall from the bottom surface toward the hole edge is slightly expanded toward the hole edge, the groove width at the hole edge is 0.15 mm, and the groove depth is 0.075 mm.
  • the wire barrel 12 of the terminal 10 is crimped to the core wire 21 of the electric wire 20 having the core wire 21 having a cross-sectional area of 0.5 mm 2 made of an aluminum alloy, and the insulation barrel 14 is crimped to the insulation coating 22 to obtain insulation.
  • Five types of terminal-attached electric wires 30 with different compression ratios of the barrel 14 were produced.
  • the insulation barrel 14 was crimped in an overlapping manner.
  • the compression ratio of the insulation barrel 14 is 59% (Comparative Example 1), 73% (Example 1), 81% (Example 2), 88% (Example 3), and 99% (Example 4).
  • the five types were changed to 25.
  • the compression rate is a value defined by the following formula (1).
  • Compression rate ⁇ (Cross sectional area of electric wire after crimping) / (Cross sectional area of electric wire before crimping) ⁇ ⁇ 100 (%) (1)
  • the compression ratio was in the range of 70% or more and less than 100%, the adhesion strength value was 126 or more. Further, it was found that when the compression ratio is in the range of 80% to 90%, the fixing force is the highest at 140 N, which is more preferable.
  • the female terminal 10 is shown as an example.
  • the present invention is disclosed in this specification for all terminals provided with an insulation barrel, such as a male terminal provided with an insulation barrel that is crimped to the insulating coating 22.
  • the applied technology can be widely applied.
  • the pair of insulation barrel pieces 14B are configured to be crimped to the electric wire 20 in an overlapping manner, but the tip portions may be opposed to each other and abutted.
  • the present invention may be applied to a copper electric wire having a core wire made of a copper alloy.
  • the strand wire was illustrated in the said embodiment, you may apply to the straight core wire which has not twisted each strand.
  • the insulation barrel 14 is provided with a single groove, but two or more grooves may be provided. Moreover, it is good also as a structure which provides not only a groove part but a some short recessed part, uneven

Abstract

L'invention porte sur un fil électrique à borne comprenant un fil électrique obtenu par recouvrement d'une âme avec un revêtement isolant, et une borne connectée à l'extrémité du fil électrique. La borne est pourvue d'une pièce sertie qui est sertie sur la surface périphérique extérieure du revêtement isolant, et formée de manière à faire saillie dans une direction qui croise la direction dans laquelle le fil électrique s'étend ; un évidement (14C) est ménagé dans la surface de la pièce sertie sur son côté revêtement isolant ; et le taux de compression représenté par la formule (1) dans la région sertie de l'âme où la pièce sertie est sertie est supérieur ou égal à 70 % et inférieur à 100 %. Taux de compression = [(aire de section transversale du fil électrique serti) / (aire de section transversale du fil électrique avant sertissage)] × 100 (%) (1)
PCT/JP2017/019322 2016-06-09 2017-05-24 Fil électrique à borne WO2017212920A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016115207A JP2017220392A (ja) 2016-06-09 2016-06-09 端子付き電線
JP2016-115207 2016-06-09

Publications (1)

Publication Number Publication Date
WO2017212920A1 true WO2017212920A1 (fr) 2017-12-14

Family

ID=60577862

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/019322 WO2017212920A1 (fr) 2016-06-09 2017-05-24 Fil électrique à borne

Country Status (2)

Country Link
JP (1) JP2017220392A (fr)
WO (1) WO2017212920A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7327903B2 (ja) * 2018-03-29 2023-08-16 古河電気工業株式会社 端子付き電線およびその製造方法
JP7137764B2 (ja) 2019-08-09 2022-09-15 株式会社オートネットワーク技術研究所 端子付き電線
JP6936836B2 (ja) * 2019-08-09 2021-09-22 株式会社オートネットワーク技術研究所 端子付き電線
JP6957568B2 (ja) 2019-08-09 2021-11-02 株式会社オートネットワーク技術研究所 端子付き電線

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0572053U (ja) * 1992-01-08 1993-09-28 日本エー・エム・ピー株式会社 ワイヤ圧着端子
JP3005065U (ja) * 1994-06-08 1994-12-06 住友電装株式会社 端子金具
JP2010049897A (ja) * 2008-08-20 2010-03-04 Sumitomo Wiring Syst Ltd 端子金具の製造方法
JP2011216253A (ja) * 2010-03-31 2011-10-27 Yazaki Corp 圧着端子および圧着端子の電線に対する接続構造
WO2014142155A1 (fr) * 2013-03-15 2014-09-18 住友電装株式会社 Borne résistant à la corrosion, fil électrique doté d'une borne résistant à la corrosion, et procédé de production d'un fil électrique doté d'une borne résistant à la corrosion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0572053U (ja) * 1992-01-08 1993-09-28 日本エー・エム・ピー株式会社 ワイヤ圧着端子
JP3005065U (ja) * 1994-06-08 1994-12-06 住友電装株式会社 端子金具
JP2010049897A (ja) * 2008-08-20 2010-03-04 Sumitomo Wiring Syst Ltd 端子金具の製造方法
JP2011216253A (ja) * 2010-03-31 2011-10-27 Yazaki Corp 圧着端子および圧着端子の電線に対する接続構造
WO2014142155A1 (fr) * 2013-03-15 2014-09-18 住友電装株式会社 Borne résistant à la corrosion, fil électrique doté d'une borne résistant à la corrosion, et procédé de production d'un fil électrique doté d'une borne résistant à la corrosion

Also Published As

Publication number Publication date
JP2017220392A (ja) 2017-12-14

Similar Documents

Publication Publication Date Title
WO2009136560A1 (fr) Borne de sertissage et procédé de fabrication de câble électrique pourvu de borne
WO2017212920A1 (fr) Fil électrique à borne
WO2009154108A1 (fr) Garniture de borne métallique et fil électrique présentant une borne
US9147944B2 (en) Terminal fitting
JP2010040404A (ja) 端子金具及びワイヤーハーネス
WO2017068963A1 (fr) Procédé de fabrication de fil conducteur avec borne, appareil de sertissage, et fil conducteur avec borne
JP2009245695A (ja) 圧着端子
WO2016143468A1 (fr) Borne, et câblage avec borne
JP2009123622A (ja) アルミ電線用圧着端子
WO2016143466A1 (fr) Câblage avec borne, et borne
JP5434095B2 (ja) 電線接続スリーブ、リペア電線、電線接続スリーブの製造方法、および電線の接続方法
WO2015068650A1 (fr) Borne à sertir
JP2010225529A (ja) 端子金具付き電線
WO2016167125A1 (fr) Cosse et fil électrique équipé d'une cosse
JP6479535B2 (ja) 端子、端子付き電線、ワイヤハーネス構造体
JP6156185B2 (ja) 端子付き電線
WO2018092597A1 (fr) Borne sertie et fil électrique comprenant ladite borne
US10340610B2 (en) Structure for improving impact strength of a terminal
JP5316914B2 (ja) 端子金具及び端子付き電線
JP2017168400A (ja) 端子付電線及びその製造方法
JP2017130330A (ja) 端子付き電線、ワイヤハーネス
WO2017068965A1 (fr) Procédé de fabrication de fil conducteur avec borne, appareil de sertissage, et fil conducteur avec borne
JP2003007361A (ja) 圧着端子
JP2010073345A (ja) 端子金具の接続構造、端子金具付き電線、および端子金具付き電線の製造方法
JP5195191B2 (ja) 端子金具及び端子金具付き電線

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17810101

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 17810101

Country of ref document: EP

Kind code of ref document: A1