WO2015064406A1 - Borne sertie - Google Patents

Borne sertie Download PDF

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Publication number
WO2015064406A1
WO2015064406A1 PCT/JP2014/077802 JP2014077802W WO2015064406A1 WO 2015064406 A1 WO2015064406 A1 WO 2015064406A1 JP 2014077802 W JP2014077802 W JP 2014077802W WO 2015064406 A1 WO2015064406 A1 WO 2015064406A1
Authority
WO
WIPO (PCT)
Prior art keywords
core wire
crimping
wire
caulking
strong
Prior art date
Application number
PCT/JP2014/077802
Other languages
English (en)
Japanese (ja)
Inventor
洋人 中田
Original Assignee
矢崎総業株式会社
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 矢崎総業株式会社 filed Critical 矢崎総業株式会社
Publication of WO2015064406A1 publication Critical patent/WO2015064406A1/fr

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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
    • H01R4/183—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 crimp terminal connected to an electric wire.
  • a conventional crimp terminal is disclosed in Japanese Patent Application Laid-Open No. 2009-123623 (Patent Document 1).
  • the electric wire W connecting the crimp terminal 110 is constituted by a core wire 101 composed of a plurality of strands 101 a and an insulating sheath 102 covering the outer periphery of the core wire 101.
  • the insulating sheath 102 is removed and the core wire 101 is exposed.
  • the crimp terminal 110 has a mating terminal connection portion 111 and a wire connection portion 115.
  • the wire connection portion 115 includes a core wire crimping portion 116 and an outer skin crimping portion 117.
  • the core wire crimping part 116 has a base part 116a and a pair of caulking piece parts 116b extending from both sides of the base part 116a.
  • a serration 118 is formed on the inner surface of the base portion 116a of the core wire crimping portion 116 and the pair of caulking piece portions 116b.
  • the serration 118 is three long grooves.
  • the outer skin crimping part 117 has a base part 117a and a pair of caulking piece parts 117b extending from both sides of the base part 117a.
  • the crimp terminal 110 crimps and crimps the core wire 101 exposed by the core wire crimping portion 116, and crimps and crimps the insulating sheath 102 by the outer skin crimping portion 117.
  • the crimping and crimping uses a wire crimper 120 as shown in FIGS. 3 (a) and 3 (b).
  • the wire crimper 120 has a caulking groove 121 having a final caulking outer peripheral shape on the caulking tip side.
  • FIGS. 4A and 4B the pair of crimping pieces 116b are pressed by the wire crimper 120 and the pair of crimping pieces 116b are plastically deformed.
  • the core wire 101 receives a crimping force from the caulking piece portion 116b. Then, as shown in FIG. 4B, the core wire 101 can freely extend in either the left or right direction (a arrow direction, b arrow direction). Generally, the core wire 101 located on the distal end side of the crimping piece portion 116b extends to the distal end side (a arrow direction), and the core wire 101 located on the rear end side (insulating outer skin side) of the crimping piece portion 116b is , And extends to the rear end side (insulating skin side) (in the direction of arrow b).
  • the core wire 101 freely expands and contracts in this way, the crimping force does not effectively act on each strand 101a of the core wire 101, so the strand 101a can receive only a low compressive force and effectively generate adhesion. I can't let you. If adhesion does not occur or if adhesion is insufficient, there is a problem that conduction between the strands 101a cannot be ensured and the resistance of the entire circuit increases.
  • the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a crimp terminal that can reliably ensure conduction between the core wires and can reduce the resistance of the entire circuit.
  • a first aspect of the present invention includes a core wire crimping portion that crimps and crimps a core wire composed of a plurality of strands of an electric wire, and the core wire crimping portion has other portions at a plurality of positions spaced in the axial direction of the core wire.
  • a strong crimping portion that is crimped more strongly than a portion is provided, and the plurality of strong crimping portions provide crimp terminals that are provided by strongly crimping opposed positions that are alternately different in the axial direction of the core wire.
  • the plurality of strong pressure bonding portions may be three places.
  • the core wire in the core wire crimping portion has a compressive force acting on the entire area and a strong compressive force at three locations. It is possible to reliably ensure conduction between the two, and to reduce the resistance of the entire circuit.
  • a prior art example is shown, (a) is a front view of a caulking jig, and (b) is a side view of the caulking jig.
  • a conventional example is shown, (a) is a front view showing a caulking process using a caulking jig, and (b) is a sectional view taken along the line DD of (a) showing a caulking process using a caulking jig.
  • FIG. 1 shows an embodiment of the present invention
  • (a) is a side view of a crimp terminal crimped to an electric wire
  • (b) is an enlarged view of the main part of (a)
  • (c) is a cross-sectional view of the main part of (a).
  • FIG. 7 shows an embodiment of the present invention, where (a) is a cross-sectional view taken along the line AA in FIG. 6, and (b) is a cross-sectional view taken along the line BB in FIG.
  • FIG. 1 shows an embodiment of the present invention
  • (a) is a front view of a caulking jig at an initial position
  • (b) is a front view of a caulking jig at a caulking position for crimping a crimp terminal
  • (c) is ( It is CC sectional view taken on the line of a).
  • FIG. 2 is a cross-sectional view showing each caulking step by a caulking jig, showing an embodiment of the present invention.
  • the electric wire W is composed of a core wire 1 composed of a plurality of strands 1 a and an insulating sheath 2 covering the outer periphery of the core wire 1.
  • the insulating sheath 2 is removed and the core wire 1 is exposed.
  • the core wire 1 is composed of a large number of strands 1a made of aluminum or aluminum alloy (hereinafter referred to as aluminum), and the numerous strands 1a are twisted together. That is, the electric wire W is an aluminum electric wire.
  • the crimp terminal 10 is made of, for example, a copper alloy, and is formed by bending a plate cut into a predetermined shape.
  • the crimp terminal 10 has a mating terminal connection portion 11 and a wire connection portion 15.
  • the electric wire connecting portion 15 includes a core wire crimping portion 16 and an outer skin crimping portion 17.
  • the core wire crimping part 16 has a base part 16a and a pair of caulking piece parts 16b extending from both sides of the base part 16a.
  • the core wire crimping portion 16 is provided with strong crimping portions E1, E2, and E3 that are caulked more strongly than the other portions at three locations spaced apart in the axial direction C1 of the core wire 1. It has been.
  • the three strong pressure-bonding portions E1, E2, and E3 are provided by caulking strongly at positions alternately facing the axial direction C1 of the core wire 1. Specifically, with a space from the front end side to the rear side of the core wire crimping portion 16, it is strongly caulked at the upper position of the caulking piece portion 16b, the position of the base portion 16a, and the upper position of the caulking piece portion 16b. In each of these positions, recesses 19a, 19b, 19c are formed by strong caulking.
  • Numerous round groove serrations 18 are formed on the inner surface of the base portion 16a of the core wire crimping portion 16 and the pair of caulking piece portions 16b.
  • the outer skin crimping portion 17 has a base portion 17a and a pair of caulking piece portions 17b extending from both sides of the base portion 17a.
  • the crimp terminal 10 crimps and crimps the core wire 1 exposed by the core wire crimping portion 16, and crimps and crimps the insulating sheath 2 by the outer skin crimping portion 17.
  • the crimp terminal 10 is crimped by a crimping jig 20 shown in FIG.
  • the crimping jig 20 includes a wire crimper 21 that can move up and down, and an anvil 22 disposed below the wire crimper 21.
  • the lower part (upper caulking) of the wire crimper 21 has a caulking groove 21a having a final caulking outer peripheral shape.
  • the upper part (the lower side of the crimping) of the anvil 22 has a final crimping outer circumferential shape of the crimping groove 22a.
  • a movable crimper 21 b is provided at the center of the bottom surface of the crimping groove 21 a of the wire crimper 21.
  • the movable crimper 21b is provided in the caulking groove 21a so as to freely advance and retract.
  • the lower end of the movable crimper 21b has a mountain shape.
  • mountain-shaped convex portions 22 b and 22 b are provided on both sides of the bottom surface of the caulking groove 22 a of the anvil 22 .
  • the crimp terminal 10 on which the core wire 1 is placed is set on the anvil 22, and as shown in FIG. 9 (b), the wire crimper 21 with the movable crimper 21b in the retracted position is attached to the crimping position. Move to. Thereby, the core crimping part 16 is crimped by the wire crimper 21 and the anvil 22, and the core crimping part 16 is plastically deformed by both the crimping grooves 21a and 22a.
  • strong crimping portions E1 and E3 are formed at two locations on the core wire crimping portion 16, and recesses 19a and 19c are formed at two locations below the core crimping portion 16 corresponding to the strong crimping portions E1 and E3. Is formed.
  • the wire crimper 21 is returned to the initial position, and the wire crimper 21 with the movable crimper 21b as the protruding position is moved again to the crimping position.
  • a strong crimping portion E2 is formed at one location of the core crimping portion 16, and a recess 19b is formed at one location above the core crimping portion 16 corresponding to the strong crimping portion E2.
  • a compressive force acts on the entire area of the core wire 1 in the core wire crimping portion 16 and a strong compressive force acts at three locations. For this reason, compared with the case where the compressive force is simply received, at the three strong crimping portions E1, E2, and E3 of the core wire crimping portion 16, a large compressive force acts on the core wire 1 due to stress concentration and adhesion occurs. As a result, conduction between the strands 1a can be reliably ensured, and the resistance of the entire circuit can be reduced.
  • the core crimping portion 16 is provided with three strong crimping portions E1, E2, E3 at intervals in the axial direction C1 of the core wire 1, and the three strong crimping portions E1, E2, E3 are alternately opposed to each other. It is provided by applying a strong caulking force to the position to be operated. Therefore, as shown in detail in FIGS. 6B and 6C, the two folds 19 a, 19 b, and 19 c alternately arranged are bent alternately.
  • Core wire 1 is made of aluminum.
  • the aluminum wire 1a has a harder oxide film on the surface than the copper alloy. Therefore, the aluminum core wire 1 has a problem of an increase in electrical resistance due to the conduction resistance between the strands 1a.
  • the conduction resistance between the strands 1a can be reduced by the occurrence of adhesion. Therefore, it is particularly effective for aluminum electric wires.
  • the aluminum core wire 1 is softer and easier to extend than the copper alloy, but as described above, the core wire crimping portion 16 is provided with the strong crimping portions E1, E2, E3, and the central strong crimping portion E2 and In the strong pressure bonding parts E1 and E3 on both sides, different positions were strongly crimped.
  • the embodiment of the present invention is particularly effective for an aluminum electric wire from this viewpoint.
  • the core wire crimping portion 16 is provided with the three strong crimping portions E1, E2, and E3.
  • the core wire crimping portion 16 may be provided at two locations facing each other, or may be provided at four or more locations.
  • the serration 18 is a groove, but may be a protrusion, or may be both a groove and a protrusion. That is, in this specification, the serration means a groove or a convex portion formed on the surface.
  • the core wire 1 is made of aluminum, but the present invention can also be applied to a core wire 1 other than aluminum (for example, made of copper alloy).

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

Abstract

La présente invention concerne une borne sertie (10) qui est pourvue d'une partie de sertissage de fil d'âme (16) pour comprimer et sertir un fil d'âme (1) comprenant une pluralité de brins (1a) d'un fil (W). Au niveau d'une pluralité de positions espacées dans la direction axiale (C1) du fil d'âme (1), la partie de sertissage de fil d'âme (16) est pourvue de parties fortement pincées (E1, E2, E3) comprimées plus fortement que d'autres emplacements, le pluralité des parties fortement pincées (E1, E2, E3) étant obtenues en comprimant fortement alternativement différentes positions opposées dans la direction axiale du fil d'âme (1).
PCT/JP2014/077802 2013-10-28 2014-10-20 Borne sertie WO2015064406A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013-222979 2013-10-28
JP2013222979A JP2015088225A (ja) 2013-10-28 2013-10-28 圧着端子

Publications (1)

Publication Number Publication Date
WO2015064406A1 true WO2015064406A1 (fr) 2015-05-07

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ID=53004015

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2014/077802 WO2015064406A1 (fr) 2013-10-28 2014-10-20 Borne sertie

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JP (1) JP2015088225A (fr)
WO (1) WO2015064406A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2276140A (en) * 1940-04-18 1942-03-10 Artos Engineering Co Conductor terminal
JPS4842378A (fr) * 1971-09-30 1973-06-20
JPH08111247A (ja) * 1994-10-07 1996-04-30 Nippon Tanshi Kk 圧着端子及び圧着工具
JP2002324594A (ja) * 2001-04-26 2002-11-08 Asahi Intecc Co Ltd 張設線の端子圧着構造
JP2007059304A (ja) * 2005-08-26 2007-03-08 Auto Network Gijutsu Kenkyusho:Kk 端子付き電線とその製造方法
JP2008262851A (ja) * 2007-04-13 2008-10-30 San'eisha Mfg Co Ltd 電線接続方法及びそれに使用する電線接続用圧縮ダイス

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2276140A (en) * 1940-04-18 1942-03-10 Artos Engineering Co Conductor terminal
JPS4842378A (fr) * 1971-09-30 1973-06-20
JPH08111247A (ja) * 1994-10-07 1996-04-30 Nippon Tanshi Kk 圧着端子及び圧着工具
JP2002324594A (ja) * 2001-04-26 2002-11-08 Asahi Intecc Co Ltd 張設線の端子圧着構造
JP2007059304A (ja) * 2005-08-26 2007-03-08 Auto Network Gijutsu Kenkyusho:Kk 端子付き電線とその製造方法
JP2008262851A (ja) * 2007-04-13 2008-10-30 San'eisha Mfg Co Ltd 電線接続方法及びそれに使用する電線接続用圧縮ダイス

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