WO2016186021A1 - Borne et fil électrique équipé d'une borne - Google Patents

Borne et fil électrique équipé d'une borne Download PDF

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Publication number
WO2016186021A1
WO2016186021A1 PCT/JP2016/064254 JP2016064254W WO2016186021A1 WO 2016186021 A1 WO2016186021 A1 WO 2016186021A1 JP 2016064254 W JP2016064254 W JP 2016064254W WO 2016186021 A1 WO2016186021 A1 WO 2016186021A1
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WO
WIPO (PCT)
Prior art keywords
electric wire
insulating coating
crimping
terminal
wire
Prior art date
Application number
PCT/JP2016/064254
Other languages
English (en)
Japanese (ja)
Inventor
高信 嶋田
拓次 大塚
佳久 横山
隆彦 濱口
丈博 中田
悟史 森川
浩史 浜田
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 WO2016186021A1 publication Critical patent/WO2016186021A1/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
    • 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

Definitions

  • the present invention relates to a terminal connected to an electric wire and an electric wire with a terminal.
  • the terminal described in Patent Document 1 is known as a terminal connected to an electric wire in which the outer periphery of a core wire is covered with an insulating coating.
  • This terminal has an insulation barrel that is crimped from the outside of the insulating coating, and a wire barrel that is crimped from the outside of the core wire exposed from the insulating coating.
  • a relatively heavy device may be connected to the other end of the wire.
  • the technology disclosed in the present specification has been conceived in view of the above-described problems, and an object thereof is to provide a terminal with improved holding power for an electric wire and an electric wire with a terminal.
  • the present invention is a terminal connected to an electric wire whose core wire is covered with an insulating coating, and a bottom wall on which the electric wire is placed, and a crimping portion that protrudes from the bottom wall and is crimped to the outer periphery of the insulating coating.
  • a connecting portion that protrudes from the core wire side exposed from the insulating coating with respect to the crimping portion of the bottom wall, and the crimping portion is crimped to the insulating coating,
  • the insulating coating of the electric wire is covered except for a portion of the electric wire that is located on the side opposite to the bottom wall.
  • the present invention is a terminal-attached electric wire comprising: an electric wire having a core wire covered with an insulating coating; and a terminal connected to the electric wire, the bottom wall on which the electric wire is placed, and the bottom wall A pressure-bonding portion that protrudes and is crimped to the outer periphery of the insulating coating; and a connecting portion that protrudes from a position on the core wire side exposed from the insulating coating with respect to the pressure-bonding portion of the bottom wall.
  • the connecting portion covers the insulating coating of the electric wire except for a portion of the electric wire located on the side opposite to the bottom wall.
  • the present invention it is possible to improve the holding force between the terminal and the electric wire by covering the insulating coating except the portion where the connecting portion is located on the side opposite to the bottom wall.
  • the connecting portion and the crimping portion are configured to be mechanically divided in the region opposite to the bottom wall. ing.
  • the pressure-bonding portion has a pair of pressure-bonding pieces, and the pair of pressure-bonding pieces are pressed against each other with their tip portions facing each other in a state of being pressure-bonded to the insulating coating.
  • the tip surfaces of the pair of crimping pieces are brought into contact with each other, so that the tip portions are brought into contact with each other, and the inner peripheral surface on the insulating coating side of the crimping pieces is substantially continuous. Therefore, it is difficult for the edge of the tip portion to bite into the insulation coating, and even when the crimping piece is crimped to the insulation coating with high compression, it is avoided that the insulation coating is damaged.
  • an inclined portion that is inclined in a tapered shape toward the tip portion of the crimping piece is formed at an edge portion on the insulating coating side of the tip portion of the crimping piece.
  • the insulation coating is pressed by the crimping piece in the process of crimping, and the insulation coating is pushed between the tip portions of the pair of crimping pieces.
  • biting By providing such an inclined portion, a portion of the insulating coating that is likely to be bitten is easily released into a mountain-shaped region surrounded by the pair of inclined portions, and biting can be avoided.
  • the technique described in this specification can be suitably used when the core wire is made of aluminum or an aluminum alloy.
  • the core wire may be made of aluminum or an aluminum alloy. Furthermore, there is an increasing need for an electric wire having a smaller core diameter than before. In the case of such an electric wire, since the strength is lower than that of a conventional electric wire, when a large force is applied to the electric wire in a state where it is connected to the terminal, there is a concern that the portion crimped to the crimping portion may be disconnected. . According to this aspect, since the insulating coating can be held also by the connecting portion, the holding force between the electric wire and the terminal can be improved.
  • the holding force between the terminal and the electric wire can be improved.
  • the side view which shows the electric wire with a terminal concerning Embodiment 1 Side view showing terminals Partially enlarged perspective view showing the wire connection part Partially enlarged plan view showing opening Sectional drawing which shows the state before an insulation barrel is crimped
  • the side view which shows the electric wire with a terminal concerning Embodiment 2 Side view showing terminals Partially enlarged plan view showing opening
  • the terminal 10 in this embodiment is made of copper or a copper alloy.
  • the terminal 10 includes a connecting portion 20 that has a rectangular tube shape and is connected to a mating terminal (not shown), and a wire connecting portion 30 that is formed behind the connecting portion 20 and connected to the electric wire 40.
  • the electric wire 50 with a terminal is comprised.
  • the upper side in FIG. 1 is the upper side
  • the lower side is the lower side.
  • the left side in FIG. 1 is the front and the right side is the rear.
  • the electric wire 40 has a configuration in which a core wire 42 formed by twisting a plurality of metal strands 41 is covered with an insulating coating 43 made of an insulating synthetic resin.
  • the metal element wire 41 can use any metal such as copper, copper alloy, aluminum, or aluminum alloy.
  • the metal strand 41 of this embodiment is comprised with the aluminum alloy.
  • connection part 20 has comprised the substantially rectangular tube shape.
  • An elastic contact piece (not shown) is provided inside the connection portion 20.
  • the wire connection portion 30 includes a wire barrel 31 to which the end of the core wire 42 of the wire 40 is crimped, and an insulation barrel disposed behind the wire barrel 31 and to which the insulating coating 43 of the wire 40 is fixed.
  • 32 an example of a crimping portion
  • the wire barrel 31, the connecting portion 33, and the insulation barrel 32 have a bottom wall 34 that extends in the front-rear direction (the axial direction of the electric wire 40), and core wire crimping pieces 31 ⁇ / b> A and side walls that protrude from both side edges of each bottom wall 34.
  • 33A and the insulation coating crimping piece 32A (an example of a crimping piece).
  • the wire barrel 31 is an open barrel type, in which the ends of the core wire 42 are arranged along the front-rear direction of the bottom wall 34, and the ends of the core wire 42 are crimped by a pair of core wire crimping pieces 31A.
  • the core wire 42 can be crimped.
  • the core wire 42 and the wire barrel 31 are electrically connected when the core wire 42 contacts the inner surfaces of both the core wire crimping pieces 31 ⁇ / b> A and the bottom wall 34 so as to be conductive.
  • the wire barrel 31 has a rectangular shape that is long in the up-down direction (direction orthogonal to the front-rear direction) in the unfolded state before the electric wire 40 is crimped.
  • a plurality of recesses 38 are formed on the surface of the wire barrel 31 that contacts the core wire 42.
  • the hole edge portion of the recess 38 bites into the surface of the core wire 42.
  • good conduction between the core wire 42 and the wire barrel 31 can be achieved, and the holding force of the core wire 42 can be increased.
  • the insulation barrel 32 is an open barrel type, in which the insulation coating 43 of the electric wire 40 is disposed along the front-rear direction of the bottom wall 34, and the insulation coating 43 is crimped by both insulation coating crimping pieces 32A to insulate the electric wire 40. It can be fixed to the barrel 32.
  • the insulation barrel 32 has a rectangular shape extending in the vertical direction (a direction orthogonal to the front-rear direction) in a developed state before the electric wire 40 is crimped.
  • the pair of insulation coating crimping pieces 32 ⁇ / b> A are wound around the outer periphery of the insulating coating 43 of the electric wire 40 placed on the bottom wall 34, and are crimped in the radial direction against the outer peripheral surface of the insulating coating 43. .
  • the tip portions 35 of each other face each other and are abutted against each other.
  • tip parts 35 of the insulation coating crimping piece 32A is along the axial direction (front-back direction) of the electric wire 40.
  • the cutout portion is obliquely cut so as to extend, and the cutout portion is an inclined portion 36.
  • the edge on the insulating coating 43 side of the tip portion 35 of the insulating coating crimping piece 32 ⁇ / b> A is formed to be inclined in a tapered shape toward the tip portion 35.
  • FIG. 6 is a diagram showing a cross-sectional configuration of the insulation barrel 32 in a crimped state.
  • the pair of insulation coating crimping pieces 32 ⁇ / b> A are crimped while being wound around the outer periphery of the insulation coating 43 so that the front end portions 35 thereof face each other and are closely overlapped with each other. .
  • the pair of inclined portions 36 are provided on the inner peripheral surface side of these abutting portions toward the outside in the radial direction of the electric wire 40.
  • a relief space 37 having a gentle mountain-like cross section is formed.
  • the inner peripheral surface (the surface on the insulating coating 43 side) of the insulation barrel 32 is in a substantially continuous state.
  • the escape space 37 is different from a right-angled step or an acute edge, and the inner periphery excluding the inclined portion 36 of the insulation coating crimping piece 32A in a gentle state. It is continuous with the surface.
  • the wire barrel 31 and the insulation barrel 32 described above are connected by a connecting portion 33.
  • the connecting portion 33 has a pair of side walls 33A that rise from both side edges of the bottom wall 34 and sandwich the outer peripheral portion of the insulating coating 43 from the left and right sides.
  • the protruding height dimension of the core wire crimping piece 31 ⁇ / b> A from the bottom wall 34 is set to be larger than the projecting height dimension of the insulating coating crimping piece 32 ⁇ / b> A from the bottom wall 34.
  • the protruding height dimension of the side wall 33A from the bottom wall 34 is set to be smaller than the protruding height dimension of the insulating coating crimping piece 32A from the bottom wall 34.
  • the shape of the upper end edge of the core wire crimping piece 31A, the upper end edge of the side wall 33A, and the upper end edge of the insulating coating crimping piece 32A is substantially U-shaped when viewed from the side.
  • the side wall 33A covers the insulating coating 43 of the electric wire 40 from the side as viewed from the side. .
  • the insulation coating of the electric wire 40 is blocked by the side wall 33A so that it cannot be seen.
  • the protruding height dimension of the side wall 33A from the bottom wall 34 is the height dimension of the insulating coating 43 upward from the bottom wall 34 in a state where the insulation barrel 32 is crimped to the insulating coating 43 of the electric wire 40. Is set larger than.
  • the region surrounded by the wire barrel 31, the side wall 33 ⁇ / b> A, and the insulation barrel 32 when viewed from above in the state where the wire barrel 31 and the insulation barrel 32 are crimped to the electric wire 40. Is an opening 45 that opens upward.
  • the insulating coating 43 and the core wire 42 of the electric wire 40 are exposed from the opening 45. That is, the insulation coating 43 and the core wire 42 of the electric wire 40 are exposed from the opening 45 at a portion located on the side opposite to the bottom wall 34 and are not covered with the side wall 33A.
  • the terminal 10 of the electric wire 50 with a terminal includes a bottom wall 34 on which the electric wire 40 is placed, an insulation barrel 32 that protrudes from the bottom wall 34 and is crimped to the outer periphery of the insulating coating 43, and a bottom A connecting portion 33 projecting from the side of the core wire 42 exposed from the insulating coating 43 than the insulation barrel 32 of the wall 34, and in a state where the wire barrel 31 is crimped to the insulating coating 43, The insulating coating 43 of the electric wire 40 is covered except for a portion of the electric wire 40 located on the side opposite to the bottom wall 34.
  • the holding force between the terminal 10 and the electric wire 40 can be improved by covering the insulating coating 43 except the portion where the connecting portion 33 is located on the side opposite to the bottom wall 34.
  • the connecting portion 33 does not cover the portion located on the opposite side of the bottom wall 34, the connecting portion 33 and the insulation barrel 32 are mechanically moved in the region opposite to the bottom wall 34. It has a divided structure. Thereby, even when the connecting portion 33 covers the insulating coating 43, the connecting portion 33 does not exert a mechanical influence on the tip portion 35 of the insulation barrel 32. As a result, since the insulation coating 43 can be held in an appropriate form by the insulation barrel 32, the holding force between the terminal 10 and the electric wire 40 can be improved.
  • connection portion 33 is configured not to cover the portion located on the opposite side of the bottom wall 34, so that the wire barrel 31 and the insulation barrel 32 are also mechanically divided. . Accordingly, when the wire barrel 31 is crimped to the core wire 42 and the insulation barrel 32 is crimped to the insulating coating 43, the deformed state of the wire barrel 31 and the deformed state of the insulation barrel 32 influence each other. Is suppressed. As a result, the wire barrel 31 can have an optimum shape for crimping to the core wire 42, and further, an optimum crimping condition for crimping to the core wire 42 can be set.
  • the protruding height dimension of the core wire crimping piece 31A from the bottom wall 34 is set to be larger than the projecting height dimension of the insulating coating crimping piece 32A from the bottom wall 34.
  • the insulation barrel 32 has a pair of insulating coating crimping pieces 32 ⁇ / b> A, and the pair of insulating coating crimping pieces 32 ⁇ / b> A face each other with their distal end portions 35 facing each other. It comes to be faced with. Thereby, there is no portion which is strongly pressed locally against the insulating coating 43 on the inner peripheral surface side in contact with the insulating coating 43 in the insulating coating pressure-bonding piece 32A, and an edge or the like is formed on the insulating coating 43 even in a highly compressed state. Biting in is suppressed from scratching.
  • the edge portion on the insulating coating 43 side of the distal end portion 35 of the insulating coating crimping piece 32A has an inclined portion 36 that inclines in a tapered shape toward the distal end portion 35 of the insulating coating crimping piece 32A. Is formed.
  • the core wire 42 is made of aluminum or an aluminum alloy.
  • the core wire 42 may be made of aluminum or an aluminum alloy.
  • the electric wire 40 having a smaller core wire diameter than before.
  • the insulation coating 43 can be held also by the connecting portion 33, the holding force between the electric wire 40 and the terminal 10 can be improved.
  • the technique described in this specification can be suitably used for the electric wire 40 in which the core wire 42 is made of aluminum or an aluminum alloy and the core wire 42 has a relatively small diameter.
  • the protruding height dimension of the core wire crimping piece 31A from the bottom wall 34 is set to be larger than the projecting height dimension of the insulating coating crimping piece 32A from the bottom wall 34. Yes. Further, the protruding height dimension of the side wall 33A from the bottom wall 34 is set to be smaller than the protruding height dimension of the insulating coating crimping piece 32A from the bottom wall 34.
  • the upper end edge of the side wall 33A and the upper end edge of the insulating coating pressure-bonding piece 32A are connected by an inclined edge portion 60 whose side wall 33A side is linearly lowered.
  • the inclined edge portion 60 is formed in a straight line shape when viewed from the side, but is not limited thereto, and the inclined edge portion 60 may be formed in a curved shape when viewed from the side surface.
  • the side wall 33 ⁇ / b> A covers the insulating coating 43 of the electric wire 40 from the side as viewed from the side. .
  • the insulation coating of the electric wire 40 is blocked by the side wall 33A so that it cannot be seen.
  • the upper end edge of the insulation barrel 32 and the upper end edge of the connecting portion 33 are connected by a curve that gently descends in a curved line toward the front.
  • the region surrounded by the wire barrel 31, the side wall 33 ⁇ / b> A, and the insulation barrel 32 when viewed from above in the state where the wire barrel 31 and the insulation barrel 32 are crimped to the electric wire 40. Is an opening 61 that opens upward.
  • the insulating coating 43 and the core wire 42 of the electric wire 40 are exposed from the opening 61. That is, the insulating coating 43 and the core wire 42 of the electric wire 40 are exposed from the opening 61 at a portion located on the side opposite to the bottom wall 34. Specifically, the insulating coating 43 and the core wire 42 of the electric wire 40 are exposed from the opening 61 while the insulating coating is covered by the portion of the connecting portion 33 where the inclined edge portion 60 is formed.
  • the opening 61 has a substantially droplet shape in which the core wire 42 side is curved and the insulation barrel 32 side is tapered.
  • the upper end edge of the side wall 33A and the upper end edge of the insulating coating pressure-bonding piece 32A are connected by an inclined edge portion 60 whose side wall 33A side is linearly lowered.
  • the terminal 10 is a female terminal, but is not limited thereto, and may be a male terminal. Further, a so-called LA terminal in which a through hole into which a bolt is inserted is formed in a plate-like connection portion may be used. Moreover, what is called a splice terminal which has a wire barrel, a connection part, and an insulation barrel, and a some electric wire is connected, without providing a connection part may be sufficient.
  • the wire barrel 31 and the insulation barrel 32 have an open barrel structure, but are not limited thereto, and may have a closed barrel structure.
  • the protruding height dimension of the core wire crimping piece 31A from the bottom wall 34 is set to be larger than the projecting height dimension of the insulation coating crimping piece 32A from the bottom wall 34.
  • the protruding height dimension of the core wire crimping piece 31A from the bottom wall 34 may be set smaller than the projecting height dimension of the insulating coating crimping piece 32A from the bottom wall 34, and , May be set to the same value.
  • the shape of the upper end portion of the connecting portion 33 is substantially U-shaped when viewed from the side, but is not limited thereto, and is substantially C when viewed from the side.
  • the shape can be any shape such as a letter shape or a substantially V shape.
  • Terminal 32 Insulation barrel (an example of a crimping part)
  • 32A Insulation-coated crimping piece (an example of a crimping piece)
  • Connecting portion 34 Bottom wall 35: Tip portion 36: Inclined portion 40: Electric wire 42: Core wire 43: Insulation coating 50: Electric wire with terminal

Abstract

Fil électrique 50 équipé d'une borne pourvu d'un fil électrique 40 obtenu par le recouvrement d'un fil central 42 avec un revêtement isolant 43, et d'une borne connectée au fil électrique 40, comprenant : une paroi inférieure 34 sur laquelle le fil électrique 40 est placé ; un cylindre isolant 32 qui fait saillie à partir de la paroi inférieure 34 et qui est ajusté par pression sur la périphérie extérieure du revêtement isolant 43 ; et une partie de connexion 33 qui fait saillie à partir d'une position, dans la paroi inférieure 34, qui est plus proche du fil central 42, exposé depuis le revêtement isolant 43, que le cylindre isolant 32. Dans un état où le cylindre isolant 32 est ajusté par pression sur le revêtement isolant 43, la partie de connexion 33 recouvre le revêtement isolant 43 du fil électrique 40 à l'exclusion d'une partie, du fil électrique 40, sur un côté opposé à la paroi inférieure 34.
PCT/JP2016/064254 2015-05-15 2016-05-13 Borne et fil électrique équipé d'une borne WO2016186021A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-100058 2015-05-15
JP2015100058 2015-05-15

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WO2016186021A1 true WO2016186021A1 (fr) 2016-11-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220158364A1 (en) * 2020-11-19 2022-05-19 Yazaki Corporation Electric wire with terminal and terminal crimping device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5767367U (fr) * 1980-10-09 1982-04-22
JPS59117073U (ja) * 1983-01-27 1984-08-07 東洋ハ−ネス株式会社 コネクタハウジング用端子
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
JP2007220558A (ja) * 2006-02-17 2007-08-30 Sumitomo Wiring Syst Ltd 端子金具および位置決め治具
WO2010029803A1 (fr) * 2008-09-09 2010-03-18 住友電装株式会社 Raccord de borne et câble électrique muni de ce raccord de borne
JP2012190635A (ja) * 2011-03-10 2012-10-04 Furukawa Electric Co Ltd:The ワイヤハーネス、ワイヤハーネスの製造方法
WO2014154706A1 (fr) * 2013-03-25 2014-10-02 Tyco Electronics Amp Gmbh Connexion sertie
JP2015050038A (ja) * 2013-09-02 2015-03-16 住友電装株式会社 端子金具

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5767367U (fr) * 1980-10-09 1982-04-22
JPS59117073U (ja) * 1983-01-27 1984-08-07 東洋ハ−ネス株式会社 コネクタハウジング用端子
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
JP2007220558A (ja) * 2006-02-17 2007-08-30 Sumitomo Wiring Syst Ltd 端子金具および位置決め治具
WO2010029803A1 (fr) * 2008-09-09 2010-03-18 住友電装株式会社 Raccord de borne et câble électrique muni de ce raccord de borne
JP2012190635A (ja) * 2011-03-10 2012-10-04 Furukawa Electric Co Ltd:The ワイヤハーネス、ワイヤハーネスの製造方法
WO2014154706A1 (fr) * 2013-03-25 2014-10-02 Tyco Electronics Amp Gmbh Connexion sertie
JP2015050038A (ja) * 2013-09-02 2015-03-16 住友電装株式会社 端子金具

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220158364A1 (en) * 2020-11-19 2022-05-19 Yazaki Corporation Electric wire with terminal and terminal crimping device
US11677167B2 (en) * 2020-11-19 2023-06-13 Yazaki Corporation Electric wire with terminal and terminal crimping device

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