WO2013005548A1 - Câble électrique ayant une borne et procédé de fabrication de câble électrique ayant une borne - Google Patents

Câble électrique ayant une borne et procédé de fabrication de câble électrique ayant une borne Download PDF

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Publication number
WO2013005548A1
WO2013005548A1 PCT/JP2012/065193 JP2012065193W WO2013005548A1 WO 2013005548 A1 WO2013005548 A1 WO 2013005548A1 JP 2012065193 W JP2012065193 W JP 2012065193W WO 2013005548 A1 WO2013005548 A1 WO 2013005548A1
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WO
WIPO (PCT)
Prior art keywords
core wire
terminal
wire
crimped
electric wire
Prior art date
Application number
PCT/JP2012/065193
Other languages
English (en)
Japanese (ja)
Inventor
小野　純一
平井　宏樹
拓次 大塚
宮本　賢次
智也 太田
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 WO2013005548A1 publication Critical patent/WO2013005548A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/28—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups H01R43/02 - H01R43/26
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
    • H01R43/048—Crimping apparatus or processes
    • 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
    • H01R4/183—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 for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H01R4/184—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 for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
    • H01R4/185—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 for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion combined with a U-shaped insulation-receiving portion

Definitions

  • the present invention relates to a wire with terminal and a method for manufacturing a wire with terminal.
  • a terminal is crimped to an electric wire including a core wire composed of a plurality of strands and a core wire exposed from the electric wire.
  • a terminal has a crimping
  • the wire and the terminal are electrically connected by being crimped so that the crimping portion is wound around the outside of the core wire.
  • the core wire and the crimping portion are electrically connected to each other by contacting the outer peripheral surface of the core wire and the inner surface of the crimping portion.
  • a film having a large electric resistance such as an oxide film
  • the strands are sufficiently electrically connected to each other by the coating formed on the surface of the strand.
  • only the strands that are located on the radially outer side of the core wire and contact the inner surface of the crimped portion contribute to the electrical connection between the core wire and the crimped portion, and are located on the radially inner side of the core wire.
  • the strands do not contribute to the electrical connection with the crimping part. As a result, the electrical resistance between the electric wire and the terminal is increased.
  • the fixing strength of the crimping part gradually decreases due to the difference in thermal expansion coefficient between the two metals.
  • the crimping part has a cylindrical shape
  • cracks occur in the cylindrical barrel when compressed to a large extent, resulting in poor crimping, but it suppresses loose compression.
  • the insulating oxide film formed on the surface of the aluminum element wire cannot be sufficiently destroyed, resulting in an increase in electrical resistance.
  • the present invention has been completed based on the above-described circumstances, and an object thereof is to provide a terminal-attached electric wire and a method of manufacturing the terminal-attached electric wire that can reduce the electric resistance between the electric wire and the terminal.
  • the present invention is a method of manufacturing a terminal-attached electric wire comprising: an electric wire having a core wire composed of a plurality of strands; and a terminal having a crimping portion that is crimped to the core wire exposed from the electric wire, Peeling the insulation coating covering the outer peripheral surface to expose the core wire, and energizing the core wire by sandwiching the exposed core wire in a radial direction with a pair of electrodes, while heating the core wire to below its melting point, pressure And the step of integrating the plurality of strands with each other, and the crimping portion is wound from the outside around the core wire in a region including an integrated region in which the plurality of strands are integrated. And a step of crimping to the core wire.
  • the present invention is an electric wire with a terminal including an electric wire including a core wire composed of a plurality of strands, and a terminal crimped to the core wire exposed from the electric wire, and the core wire exposed from the electric wire includes An integrated region in which the plurality of strands are integrated with each other is formed by applying a pressure while applying current in the radial direction and heating to below the melting point, and the terminal is wound around the outside of the core wire.
  • a crimping part that is crimped so as to be attached is provided, and the crimping part is crimped to an area including the integrated area in the core wire.
  • the strands are integrated with each other by being energized and heated in the radial direction, and are securely connected electrically.
  • the strand positioned radially inward of the core wire can surely contribute to the electrical connection between the electric wire and the terminal.
  • the electrical resistance between the two can be reduced.
  • the integrated region may be set to be the same as or wider than the region to be crimped to which the crimping portion is crimped.
  • an integrated region in which the strands are integrated with each other is formed in the entire region of the core wire located in the crimped region.
  • the element wire may be made of aluminum or an aluminum alloy, and the terminal may be made of a copper alloy.
  • the strands are made of aluminum or an aluminum alloy, an insulating film such as an oxide film is relatively easily formed on the surface of the strands, so that the resistance between the strands tends to increase. In the integrated region solidified by pressure, the resistance between the wires is greatly reduced. Furthermore, even if the electric wire is aluminum-based, it is preferable that the terminal is made of a copper alloy from the viewpoint of connection with other circuits. In this case, the crimping part is subjected to a heat cycle so that the core wire and the terminal are There is concern about a decrease in the bonding strength of the crimped part due to the difference in thermal expansion coefficient between the two metals, and thus a decrease in resistance between the strands. However, according to the present invention, even if the fixing strength is reduced, the strands are integrated in the first place, so that an increase in resistance between the strands and thus an increase in resistance between the wires and terminals can be prevented. Is possible.
  • the electrical resistance between the electric wire and the terminal can be reduced.
  • FIG. 1 is a side view showing a terminal-attached electric wire according to an embodiment of the present invention.
  • FIG. 2 is a perspective view showing a female terminal.
  • FIG. 3 is a perspective view showing a state in which the insulation coating of the electric wire has been removed.
  • FIG. 4 is a perspective view showing a state in which the core wires are integrated.
  • FIG. 5 is a perspective view showing a state before the wire barrel is crimped to the core wire.
  • 6 is a cross-sectional view taken along line VI-VI in FIG.
  • FIG. 7 is a perspective view showing a state before the wire barrel is crimped to the core wire described in another embodiment.
  • FIG. 9 is a plan view showing a terminal having an intermediate splice structure according to another embodiment.
  • the electric wire with terminal 10 includes an electric wire 11 and a female terminal 12 (corresponding to the described terminal) connected to the terminal of the electric wire 11. As shown in FIG. 1, the electric wire 11 extends in the left-right direction in FIG. 1 while being connected to the female terminal 12.
  • the electric wire 11 is formed by surrounding the outer periphery of a core wire 13 with an insulating coating 14.
  • the core wire 13 may be made of any metal such as aluminum, aluminum alloy, copper, copper alloy, or the like as necessary. In this embodiment, an aluminum alloy is used.
  • the core wire 13 is formed of a stranded wire obtained by twisting a large number of strands 15. The core wire 13 is exposed from the end of the electric wire 11 by peeling off the insulating coating 14 by a predetermined length.
  • the some strand 15 which comprises the core wire 13 exposed from the electric wire 11 is the arrow line described in FIG. 4 by the pair of electrodes 16 and 16 in the radial direction. It is sandwiched from the direction shown, energized while being pressurized, and heated below the melting point of the core wire. An integrated region 17 in which a plurality of strands 15 are integrated is formed in the energized portion.
  • the female terminal 12 is formed by pressing a copper alloy plate material (not shown) into a predetermined shape.
  • the female terminal 12 is formed with a pair of insulation barrels 18 that are crimped so as to be wound around the insulating coating 14 of the electric wire 11 from the outside.
  • a wire barrel 19 (corresponding to a crimping portion) that is crimped so as to be wound around the core wire 13 of the electric wire 11 from the outside is formed on the left side of the insulation barrel 18 in FIG. ing.
  • connection portion 20 that is connected to the wire barrel 19 and is electrically connected by being engaged with a mating terminal (not shown).
  • the mating terminal is a male terminal
  • the connecting portion 20 has a rectangular tube shape into which the male terminal can be inserted.
  • An elastic contact piece 21 is formed in the connecting portion 20, and the male terminal and the female terminal 12 are electrically connected by elastically contacting the elastic contact piece 21 and the male terminal.
  • the contact surface 22 which contacts the core wire 13 among the wire barrels 19 of the female terminal 12 has a recess 23 formed therein.
  • three recesses 23 are formed side by side in the direction in which the electric wire 11 extends (the direction indicated by the arrow A in FIG. 2).
  • a wire barrel 19 is crimped around the outer periphery of the core wire 13 exposed from the electric wire 11 so as to be wound.
  • the core wire 13 is formed with a pressure-bonded region 24 to which the wire barrel 19 is pressure-bonded.
  • the integrated region 17 is formed in a wider area in the left-right direction in FIG.
  • the electric wire 11 and the female terminal 12 are electrically connected by being crimped so that the wire barrel 19 is wound around the integrated region 17 of the core wire 13.
  • the shape of the wire 15 is omitted.
  • a metal plate material is pressed into a predetermined shape (see FIG. 2). At this time, you may form the recessed part 23 simultaneously.
  • the connecting portion 20 is formed by bending a metal plate formed in a predetermined shape. At this time, the recess 23 may be formed.
  • the core wire 13 is exposed by peeling off the insulation coating 14 at the end of the electric wire 11 (see FIG. 3). Then, as shown in FIG. 4, the exposed core wire 13 is sandwiched between the pair of electrodes 16 and 16 in the radial direction. In the present embodiment, the pair of electrodes 16 and 16 sandwich the core wire 13 from the vertical direction in FIG. After the core wire 13 is sandwiched between the electrodes 16, 16, the core wire 13 is energized for a predetermined time while being pressed by the electrode 16.
  • the temperature of the core wire is within a range of 300 to 500 degrees below the melting point of aluminum with a radiation thermometer, for example, and a pressure within a range of 100 to 200 KgF, for example.
  • a plurality of strands constituting the core wire 13 are softened and deformed.
  • the insulating oxide film formed on the surface of the strands is destroyed, and the strands of the strands are integrated by being exposed and fixed to each other.
  • the core wire is easily cut when the compression rate is 30% or less, and the contact resistance is increased when the compression rate is 70% or more. Therefore, the compression rate is preferably in the range of 30 to 70%.
  • the core wire 13 is detached from the electrode 16 and cooled (cooled), thereby forming an integrated region in which the strands 15 are integrated.
  • the core wire 13 is formed in a flat shape in a direction (vertical direction in FIG. 4) in which the pair of electrodes 16, 16 sandwich the core wire 13.
  • a portion including the integrated region 17 in which the strands 15 of the core wire 13 are integrated is connected to the wire barrel 19. 5 and sandwiching the insulating coating 14 on the insulation barrel 18 with a pair of molds (not shown) from above and below.
  • the barrel is crimped to the electric wire 11 from the outside.
  • the direction (in the vertical direction in FIG. 5) between which the core wire 13 is sandwiched between the pair of electrodes 16 and 16 and the direction in which the wire barrel 19 is sandwiched between the molds (in other words, a flat shape is formed).
  • the wire 11 is arranged with respect to the female terminal 12 in such a manner that the flat surface of the core wire 13 is oriented in the vertical direction.
  • the terminal-attached electric wire 10 is completed by executing the above steps.
  • the strands 15 are integrated with each other in the integrated region 17 and are electrically connected with extremely low resistance. Therefore, when the terminal 12 is crimped
  • the integrated region 17 is formed in a region wider than the bonded region 24 in the core wire 13.
  • the core wire 13 is made of an aluminum alloy
  • the terminal 12 is made of a copper alloy.
  • an insulating film such as an oxide film is relatively easily formed on the surface of the core wire 13.
  • This embodiment is particularly effective when an insulating coating is easily formed on the surface of the core wire 13.
  • the terminal is made of a copper alloy different from the core wire as in the present embodiment
  • the pressure-bonding portion is subjected to a heat cycle so that the bonding strength of the pressure-bonding portion is reduced due to the difference in thermal expansion coefficient between the two metals.
  • the wires are in contact and integrated with each other with extremely low resistance, so the electrical connection between the wires and the terminal is reduced. It is possible to maintain a resistance.
  • the integrated region 17 is formed in a region wider than the bonded region 24.
  • the present invention is not limited to this, and the integrated region 17 and the bonded region 24 are the same.
  • the integrated region 17 may be formed in a part of the pressure-bonded region 24.
  • the angle between the direction in which the core wire 13 is sandwiched by the pair of electrodes 16 and 16 and the direction in which the wire barrel 19 is sandwiched by the mold is arbitrary.
  • the wire barrel 19 may be crimped to the core wire 13 so that the direction in which the core wire 13 is sandwiched by 16 and the direction in which the wire barrel 19 is sandwiched by the mold intersect.
  • the wire barrels 19 may be crimped to the core wire 13 in an arrangement shifted from each other in the direction in which the electric wires 11 extend, and even if the wire barrel pieces branched into three or more are alternately formed from the left and right sides Alternatively, only one wire barrel piece may be formed and press-bonded to the core wire 13, and the shape of the wire barrel 19 may be any shape as necessary.
  • the terminal is the female terminal 12 having the cylindrical connection portion 20, but is not limited thereto, and may be a male terminal having a male tab, and a through hole is formed in the metal plate material.
  • a so-called LA terminal may be used, and a terminal having an arbitrary shape can be used as necessary.
  • the electric wire 11 is a covered electric wire that covers the outer periphery of the core wire 13 with the insulating coating 14.
  • the electric wire 11 is not limited thereto, and the shielded electric wire 11 may be used. 11 can be used.
  • the terminal of the said embodiment was what the wire barrel 19 and the connection part 20 were arranged side by side, it is not restricted to this, The terminal which does not have the connection part 20 may be sufficient.
  • the insulation coating 14 is peeled off at the terminal portion of one electric wire 11 to expose the core wire 13, and the other electric wire 11 is connected.
  • the core wire 13 is exposed at the intermediate portion of the two electric wires 11 and the exposed intermediate portions are crimped by one of the pair of wire barrel pieces. You may do it.
  • the core wire is integrated and then crimped with a terminal.
  • the core wire may be crimped with a terminal and then energized to form an integrated region. In this case, by heating below the melting point of the core wire, the terminal can be prevented from being deformed in addition to the above effects as compared with the case of heating above the melting point.
  • the metal material constituting the core wire and the terminal is not limited to the above embodiment.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Manufacturing Of Electrical Connectors (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un câble électrique (10) ayant une borne, ledit câble électrique comportant : un câble électrique (11) ayant une âme de câble (13) composée d'une pluralité de fils (15) ; et une borne femelle (12) ayant un fourreau de fils (19) serti sur l'âme de câble (13) exposée à partir du câble électrique (11). Dans le procédé, les étapes suivantes sont exécutées : une étape dans laquelle l'âme de câble (13) est exposée par pelage d'un film isolant (14) qui recouvre la surface circonférentielle extérieure de l'âme de câble (13) ; une étape dans laquelle un courant est transporté par prise en sandwich de l'âme de câble (13) exposée au moyen d'une paire d'électrodes (16, 16) dans la direction du diamètre, et les fils (15) sont intégrés les uns aux autres ; et une étape dans laquelle le fourreau de fils (19) est serti de sorte que le fourreau de fils soit enroulé, à partir du côté extérieur, sur une région comprenant la région intégrée de l'âme de câble (13).
PCT/JP2012/065193 2011-07-06 2012-06-14 Câble électrique ayant une borne et procédé de fabrication de câble électrique ayant une borne WO2013005548A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011150094A JP2013016430A (ja) 2011-07-06 2011-07-06 端子金具付き電線及び端子金具付き電線の製造方法
JP2011-150094 2011-07-06

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WO2013005548A1 true WO2013005548A1 (fr) 2013-01-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104112914A (zh) * 2013-04-17 2014-10-22 矢崎总业株式会社 电线连接结构和电线连接方法
EP3125369B1 (fr) * 2014-03-24 2021-04-21 Furukawa Electric Co., Ltd. Faisceau de fils, procédé de connexion entre un fil conducteur revêtu et une borne, et corps de structure de faisceau de fils

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JP2014211953A (ja) * 2013-04-17 2014-11-13 矢崎総業株式会社 電線の接続方法，接続装置
JP5967039B2 (ja) 2013-09-02 2016-08-10 株式会社オートネットワーク技術研究所 導電路及びコネクタ
JP6013417B2 (ja) * 2014-09-03 2016-10-25 矢崎総業株式会社 被覆電線の接合方法
JP2019096569A (ja) * 2017-11-28 2019-06-20 矢崎総業株式会社 端子付き電線、端子付き電線の製造方法および電線

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JP2007250393A (ja) * 2006-03-16 2007-09-27 Mitsubishi Cable Ind Ltd アルミ電線の端子圧着方法及び端子付きアルミ電線
JP2009231079A (ja) * 2008-03-24 2009-10-08 Yazaki Corp 電線に対する端子の圧着方法
WO2010058786A1 (fr) * 2008-11-19 2010-05-27 株式会社オートネットワーク技術研究所 Fil électrique équipé d'un raccord de connexion et procédé de fabrication de fil électrique équipé d'un raccord de connexion
JP2011081918A (ja) * 2009-10-02 2011-04-21 Sumitomo Wiring Syst Ltd 電線の止水構造および該止水構造の形成方法

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JP2010056106A (ja) * 2008-08-26 2010-03-11 Nec Electronics Corp ワイヤボンディング装置、これを用いたワイヤボンディング方法
JP2011134515A (ja) * 2009-12-23 2011-07-07 Autonetworks Technologies Ltd 端子金具付き電線および端子金具付き電線の製造方法
JP5654242B2 (ja) * 2010-01-18 2015-01-14 矢崎総業株式会社 電線の端末処理方法
JP5482324B2 (ja) * 2010-03-12 2014-05-07 住友電装株式会社 端子付電線の製造方法及び端子付電線
JP2011210593A (ja) * 2010-03-30 2011-10-20 Autonetworks Technologies Ltd 端子金具付き電線及びその製造方法

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Publication number Priority date Publication date Assignee Title
JP2007250393A (ja) * 2006-03-16 2007-09-27 Mitsubishi Cable Ind Ltd アルミ電線の端子圧着方法及び端子付きアルミ電線
JP2009231079A (ja) * 2008-03-24 2009-10-08 Yazaki Corp 電線に対する端子の圧着方法
WO2010058786A1 (fr) * 2008-11-19 2010-05-27 株式会社オートネットワーク技術研究所 Fil électrique équipé d'un raccord de connexion et procédé de fabrication de fil électrique équipé d'un raccord de connexion
JP2011082127A (ja) * 2008-11-19 2011-04-21 Autonetworks Technologies Ltd 端子金具付き電線及び端子金具付き電線の製造方法
JP2011081918A (ja) * 2009-10-02 2011-04-21 Sumitomo Wiring Syst Ltd 電線の止水構造および該止水構造の形成方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104112914A (zh) * 2013-04-17 2014-10-22 矢崎总业株式会社 电线连接结构和电线连接方法
EP3125369B1 (fr) * 2014-03-24 2021-04-21 Furukawa Electric Co., Ltd. Faisceau de fils, procédé de connexion entre un fil conducteur revêtu et une borne, et corps de structure de faisceau de fils

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