WO2017115710A1 - Method for producing cable with terminal, and cable with terminal - Google Patents

Method for producing cable with terminal, and cable with terminal Download PDF

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Publication number
WO2017115710A1
WO2017115710A1 PCT/JP2016/088301 JP2016088301W WO2017115710A1 WO 2017115710 A1 WO2017115710 A1 WO 2017115710A1 JP 2016088301 W JP2016088301 W JP 2016088301W WO 2017115710 A1 WO2017115710 A1 WO 2017115710A1
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Prior art keywords
terminal
wire
core wire
exposed core
electric wire
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PCT/JP2016/088301
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French (fr)
Japanese (ja)
Inventor
利幸 居原
朗 伊東
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住友電装株式会社
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Publication of WO2017115710A1 publication Critical patent/WO2017115710A1/en

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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
    • 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

  • This invention relates to a technique for connecting a terminal to an end of an electric wire.
  • the terminal of the electric wire with terminal may be inserted into the cavity in the connector housing.
  • the core wire diameter of the electric wire with terminal is determined according to the resistivity of the core wire, the magnitude of the current flowing through the core wire, etc., and was originally used when the material of the core wire was changed
  • An electric wire with a terminal having a core diameter larger than the core diameter may be used. In such a case, it is difficult to crimp the terminal used at the beginning to the core wire having a large diameter.
  • Patent Document 1 a technique related to the present invention is disclosed in Patent Document 1.
  • an object of the present invention is to enable a terminal having a size smaller than a terminal suitable for the core wire to be crimped to the exposed core portion where the core wire of the electric wire is exposed at low cost.
  • a method for manufacturing a terminal-attached electric wire provides an electric wire including (a) a core wire in which a plurality of strands are gathered and a coating formed around the core wire. And (b) forming the exposed core portion by removing the coating in a part of the extending direction of the electric wire, and (c) after the step (b), the plurality of the exposed core portions at the exposed core portion. (D) a step of crimping a core wire crimping portion of the terminal to the exposed core wire portion.
  • the terminal-attached electric wire according to the second aspect includes a core wire in which a plurality of strands are gathered and a coating formed around the core wire, and the exposed core wire is partially exposed in the extending direction. And a terminal including a core crimping part crimped to the exposed core part, and a wire having a smaller number of the wires in the exposed core part than a portion covered with the coating.
  • the diameter of the exposed core portion can be reduced. For this reason, the terminal of a size smaller than the terminal suitable for the said core wire can be crimped
  • the exposed core portion can be made thinner. For this reason, the terminal of a size smaller than the terminal suitable for the said core wire can be crimped
  • FIG. 2 is a schematic sectional view taken along line II-II in FIG.
  • FIG. 3 is a schematic sectional view taken along line III-III in FIG. 1.
  • FIG. 1 is a schematic side view showing a terminal-attached electric wire 10
  • FIG. 2 is a schematic cross-sectional view taken along line II-II in FIG. 1
  • FIG. 3 is a schematic cross-sectional view taken along line III-III in FIG.
  • the electric wire with terminal 10 includes an electric wire 12 and terminals 20 and 30.
  • the terminal-attached electric wire 10 is used alone or in combination with other electric wires with terminals or the like in a vehicle and used as a wiring material for connecting various electric components in the vehicle.
  • the electric wire 12 includes a core wire 14 and a coating 16.
  • the core wire 14 is a linear conductor in which a plurality of strands 14a are assembled. Usually, although the some strand 14a is twisted together, this is not essential.
  • the strand 14a is formed of a metal wire such as copper, a copper alloy, aluminum, or an aluminum alloy.
  • the covering 16 is an insulating member formed around the core wire 14.
  • the coating 16 is formed, for example, by extrusion-coating a softened resin around the core wire 14.
  • a coating 16 having a predetermined length is peeled from the core wire 14 at the end of the electric wire 12.
  • the exposed core wire portion 15 ⁇ / b> A where the core wire 14 is exposed over a predetermined length is formed at one end portion of the electric wire 12.
  • the exposed core wire part 15B which the core wire 14 exposes over predetermined length is formed in the other end part of the electric wire 12.
  • the number of the strands 14a in the exposed core portion 15A is smaller than the number of the strands 14a in the portion of the electric wire 12 covered with the coating 16. For this reason, the exposed core wire portion 15 ⁇ / b> A is thinner than the portion of the core wire 14 covered with the coating 16.
  • the number of the wires 14a in the exposed core portion 15B is the same as the number of the wires 14a in the portion of the electric wire 12 covered with the coating 16.
  • the exposed core part 15B is thinner than the exposed core part 15A. Note that the exposed core wire portion 15B is compressed when the terminal 30 is crimped, so that the exposed core wire portion 15B is thinner than the portion of the core wire 14 covered with the coating 16.
  • the number of the strands 14a and the number of the exposed core portions 15B of the portion of the electric wire 12 covered with the coating 16 is 11 (see FIG. 2), and the number of the strands 14a in the exposed core portion 15A is 5.
  • An example of a book (see FIG. 3) is shown.
  • the number of strands 14a in the exposed core wire portion 15A is determined according to the size of the 20 core wire crimping portions 23 to be crimped.
  • Terminals 20 and 30 are members formed by pressing a metal plate material that is a conductive plate material.
  • the terminal 20 is connected to the exposed core part 15A, and the terminal 30 is connected to the exposed core part 15B.
  • the terminal 30 has a configuration in which a wire connection portion 32 and a counterpart connection portion 38 are continuously formed.
  • the wire connection part 32 is a part to which the other end of the wire 12 is connected.
  • the wire connecting portion 32 includes a core wire crimping portion 33 and a covering crimping portion 34.
  • the core wire crimping portion 33 is a portion crimped to the exposed core wire portion 15B.
  • the core wire crimping portion 33 is, for example, in a state in which the exposed core wire portion 15B is disposed in a U-shaped portion in a cross section (in a direction orthogonal to the extending direction of the electric wire connecting portion 32), and both ends thereof are inward. By bending and deforming, it is crimped to the exposed core part 15B.
  • the covering crimp portion 34 is a portion that is crimped to the end portion of the covering 16 of the electric wire 12.
  • the core wire crimping portion 33 is, for example, in a state in which the end portions of the covering 16 are disposed in a U-shaped portion in a cross section (in a direction perpendicular to the extending direction of the wire connecting portion 32) By being bent and deformed, it is crimped to the end of the coating 16.
  • the covering crimping portion 34 is fitted into the outer peripheral portion of the covering 16 and plays a role of maintaining the connection state between the electric wire 12 and the terminal 20.
  • the core crimping portion 33 can be provided with the exposed core wire portion 15B inside, and when both ends thereof are bent and deformed inward, the exposed core wire portion 15B does not protrude outside. It is formed in a size corresponding to the thickness (diameter) of the exposed core portion 15B so that it can be accommodated.
  • the cover crimping portion 34 can be provided with the cover 16 inside, and can be accommodated without causing the cover 16 to protrude outside when both ends thereof are bent and deformed inward. Thus, it forms in the size according to the thickness (diameter) of the coating 16.
  • the terminal 30 is designed and manufactured as a terminal 30 having a size corresponding to R1 and R2 when the diameter of the covering 16 is R1 and the diameter of the exposed core portion 15B (core wire 14) is R2. It is.
  • the terminal 20 has a configuration in which the wire connection portion 22 and the counterpart connection portion 28 are continuously formed.
  • the wire connection part 22 is a part to which one end of the wire 12 is connected.
  • the wire connecting portion 22 includes a core wire crimping portion 23 and a covering crimping portion 24.
  • the core wire crimping portion 23 is a portion that is crimped to the exposed core wire portion 15 ⁇ / b> A, and has the same configuration as the core wire crimping portion 33.
  • the coated crimping portion 24 is a portion that is crimped to the end of the coating 16 of the electric wire 12 and has the same configuration as the core wire crimping portion 33.
  • the core wire crimping part 23 and the covering crimping part 24 are formed smaller than the core wire crimping part 33 and the covering crimping part 34, respectively.
  • the diameter of the coating is R1
  • the diameter of the exposed core portion (core wire portion) is R2
  • the diameter of the coating is R3 (where R3 ⁇ R1)
  • R4 the diameter of the coating
  • the first electric wire having a relatively large diameter is used.
  • a first terminal (terminal 30) is crimped and connected to the exposed core portion 15B side of the other end of the electric wire 12.
  • the number of the strands 14a of the exposed core wire portion 15A is reduced, and the exposed core wire portion 15A is thin. Therefore, a second terminal (terminal 20) for a second electric wire having a small diameter is pressure-bonded to the exposed core portion 15A side at one end of the electric wire 12.
  • the wires 12 and the terminals 20 that are not originally matched in size are connected to each other in a size-matched manner by reducing the number of the strands 14a in the exposed core portion 15A, so that they can be electrically connected satisfactorily. be able to.
  • the ratio of the number of the wires 14a of the exposed core wire portion 15A to the number of the wires 14a of the core wire portion 14 of the portion covered with the coating 16 Alternatively, it is preferably 30% to 80%.
  • the core wire crimping portion 23 is a portion for maintaining an electrical connection state to the exposed core wire portion 15A and maintaining a mechanical connection state.
  • the covering crimping portion 24 since the covering crimping portion 24 only plays a role of maintaining the connection state between the electric wire 12 and the terminal 20, the size required when the core wire crimping portion 23 is crimped to the exposed core wire portion 15A. Consistency is not that much of an issue. Note that the coating crimping portions 24 and 34 may be omitted.
  • the other party connection parts 28 and 38 are parts connected to the other party connection member.
  • the mating connection member is formed in a female terminal shape, that is, a cylindrical shape.
  • the mating connection part 38 may have a pin-shaped or tab-shaped male terminal shape, or may be formed in a configuration in which screw holes are formed in the plate part (so-called round terminal shape).
  • the covering 16 is removed at a part (here, the end portion) in the extending direction of the electric wire 12 to form an exposed core portion 15Ab (step (b)). Thereafter, when the strands 14a of the exposed core portion 15Ab are twisted together, it is preferable that the exposed core wire portion 15Ab is rotated in the direction opposite to the twisted direction to untwist the twist (see FIG. 5). ).
  • the removed strands 14a out of the plurality of strands 14a may be a group of strands 14a existing near one side of the bundled strands 14a, or the plurality of bundled strands 14a. It may be a group of strands 14a existing around the outer periphery of the wire 14a, or a group of strands 14a scattered within the bundled strands 14a.
  • the terminal-attached electric wire 10 is manufactured by crimping the terminal 20 to the exposed core wire portion 15A and the end portion of the covering 16 (step (e)).
  • the exposed core wire portion 15A can be thinned because the exposed core wire portion 15A is formed by removing a part of the plurality of strands 14a. For this reason, a terminal (for example, the second terminal) having a smaller size than the terminal (for example, the first terminal) suitable for the original thickness can be crimped to the exposed core portion 15A.
  • the terminal 30 was demonstrated to the other end part of the electric wire 10 with a terminal, the said terminal 20 may be used also for the said other end part.
  • the covering crimping part 24 of the terminal 20 may be formed in a size suitable for the relatively thick electric wire 12.
  • an exposed core wire part is formed in the extension direction intermediate part of an electric wire, and the number of the strands in the said exposed core wire part is the In the case where the number is less than the number of strands of the portion covered with the covering before and after, a splice connection terminal may be connected to the exposed core portion. Even in this case, a small-diameter terminal can be used as a splice connection terminal.

Abstract

The purpose of the present invention is to allow a terminal smaller in size than a terminal suitable for the core wire of cable to be pressure-joined to an exposed portion of the core wire at reduced cost. A method for producing a cable (10) with a terminal includes the steps of: preparing a cable (12) that includes a core wire (14) in which a plurality of strands (14a) are gathered, and a sheathing (16) formed around the core wire (14); removing the sheathing (16) in a portion in the extending direction of the cable (12) and forming an exposed core wire portion (15A); removing some of the plurality of strands (14a) in the exposed core wire portion (15A); and pressure-joining a core wire pressure-joining portion (23) of a terminal (20) to the exposed core wire portion (15A).

Description

端子付電線の製造方法及び端子付電線Manufacturing method of electric wire with terminal and electric wire with terminal
　この発明は、電線の端部に端子を接続するための技術に関する。 This invention relates to a technique for connecting a terminal to an end of an electric wire.
　端子付電線の端子は、コネクタハウジング内のキャビティに挿入されることがある。一般的に、端子付電線の芯線径は、芯線の抵抗率、芯線を流れる電流の大きさ等に応じて決定されるため、芯線の材料等が変更になった場合に、当初用いられていた芯線径よりも大きい芯線径を有する端子付電線が用いられることがある。このような場合、当初用いられていた端子を、径が大きくなった芯線に圧着することは難しい。 The terminal of the electric wire with terminal may be inserted into the cavity in the connector housing. Generally, the core wire diameter of the electric wire with terminal is determined according to the resistivity of the core wire, the magnitude of the current flowing through the core wire, etc., and was originally used when the material of the core wire was changed An electric wire with a terminal having a core diameter larger than the core diameter may be used. In such a case, it is difficult to crimp the terminal used at the beginning to the core wire having a large diameter.
　そこで、太径の電線に細径の電線を継足し接続し、当該細径の電線に当初用いられていた端子を圧着することが考えられる。 Therefore, it is conceivable to connect a small-diameter wire to a large-diameter wire and to crimp a terminal that was originally used for the small-diameter wire.
　なお、本発明に関連する技術が特許文献１に開示されている。 Note that a technique related to the present invention is disclosed in Patent Document 1.
特開２０１１－２２２３１１号公報Japanese Patent Application Laid-Open No. 2011-22311
　しかしながら、太径の電線に細径の電線を継足し接続すると、電線端部の皮剥処理、細径の電線の両端部の皮剥処理、これらの接続処理等が必要となり、工程増及び使用材料増によってコストアップとなってしまう。 However, if a thin wire is connected to a thick wire, it will be necessary to strip the ends of the wire, strip the ends of the thin wire, and connect them. Will increase the cost.
　そこで、本発明は、電線の芯線を露出させた露出芯線部に、当該芯線に適した端子よりも小さいサイズの端子を低コストで圧着できるようにすることを目的とする。 Therefore, an object of the present invention is to enable a terminal having a size smaller than a terminal suitable for the core wire to be crimped to the exposed core portion where the core wire of the electric wire is exposed at low cost.
　上記課題を解決するため、第１の態様に係る端子付電線の製造方法は、(a)複数の素線が集合した芯線と、前記芯線の周囲に形成された被覆とを含む電線を準備する工程と、(b)前記電線の延在方向の一部で前記被覆を除去して露出芯線部を形成する工程と、(c)前記工程(b)の後で、前記露出芯線部で前記複数の素線の一部を除去する工程と、(d)端子の芯線圧着部を前記露出芯線部に圧着する工程とを備える。 In order to solve the above-described problem, a method for manufacturing a terminal-attached electric wire according to a first aspect provides an electric wire including (a) a core wire in which a plurality of strands are gathered and a coating formed around the core wire. And (b) forming the exposed core portion by removing the coating in a part of the extending direction of the electric wire, and (c) after the step (b), the plurality of the exposed core portions at the exposed core portion. (D) a step of crimping a core wire crimping portion of the terminal to the exposed core wire portion.
　上記課題を解決するため、第２の態様に係る端子付電線は、複数の素線が集合した芯線と、前記芯線の周囲に形成された被覆とを含み、延在方向の一部に露出芯線部が形成されると共に、前記素線の数が前記被覆で覆われた箇所よりも前記露出芯線部で少ない電線と、前記露出芯線部に圧着された芯線圧着部を含む端子と、を備える。 In order to solve the above-described problem, the terminal-attached electric wire according to the second aspect includes a core wire in which a plurality of strands are gathered and a coating formed around the core wire, and the exposed core wire is partially exposed in the extending direction. And a terminal including a core crimping part crimped to the exposed core part, and a wire having a smaller number of the wires in the exposed core part than a portion covered with the coating.
　第１の態様によると、露出芯線部で前記複数の素線の一部を除去するため、露出芯線部の径を細くできる。このため、露出芯線部に、当該芯線に適した端子よりも小さいサイズの端子を低コストで圧着できる。 According to the first aspect, since a part of the plurality of strands is removed at the exposed core portion, the diameter of the exposed core portion can be reduced. For this reason, the terminal of a size smaller than the terminal suitable for the said core wire can be crimped | bonded to an exposed core wire part at low cost.
　第２の態様によると、素線の数が被覆で覆われた箇所よりも露出芯線部で少ないため、露出芯線部を細くできる。このため、露出芯線部に、当該芯線に適した端子よりも小さいサイズの端子を低コストで圧着できる。 According to the second aspect, since the number of strands is smaller in the exposed core portion than in the portion covered with the coating, the exposed core portion can be made thinner. For this reason, the terminal of a size smaller than the terminal suitable for the said core wire can be crimped | bonded to an exposed core wire part at low cost.
実施形態に係る端子付電線を示す概略側面図である。It is a schematic side view which shows the electric wire with a terminal which concerns on embodiment. 図１のＩＩ－ＩＩ線における概略断面図である。FIG. 2 is a schematic sectional view taken along line II-II in FIG. 図１のＩＩＩ－ＩＩＩ線における概略断面図である。FIG. 3 is a schematic sectional view taken along line III-III in FIG. 1. 端子付電線の製造方法を示す説明図である。It is explanatory drawing which shows the manufacturing method of an electric wire with a terminal. 端子付電線の製造方法を示す説明図である。It is explanatory drawing which shows the manufacturing method of an electric wire with a terminal. 端子付電線の製造方法を示す説明図である。It is explanatory drawing which shows the manufacturing method of an electric wire with a terminal. 端子付電線の製造方法を示す説明図である。It is explanatory drawing which shows the manufacturing method of an electric wire with a terminal.
　以下、実施形態に係る端子付電線及びその製造方法について説明する。図１は端子付電線１０を示す概略側面図であり、図２は図１のＩＩ－ＩＩ線における概略断面図であり、図３は図１のＩＩＩ－ＩＩＩ線における概略断面図である。 Hereinafter, the electric wire with terminal and the manufacturing method thereof according to the embodiment will be described. 1 is a schematic side view showing a terminal-attached electric wire 10, FIG. 2 is a schematic cross-sectional view taken along line II-II in FIG. 1, and FIG. 3 is a schematic cross-sectional view taken along line III-III in FIG.
　端子付電線１０は、電線１２と、端子２０、３０とを備える。本端子付電線１０は、それ単独で、又は、他の端子付電線等と組合われた状態で、車両内に組合わされ、当該車両における各種電気部品同士を接続する配線材として用いられる。 The electric wire with terminal 10 includes an electric wire 12 and terminals 20 and 30. The terminal-attached electric wire 10 is used alone or in combination with other electric wires with terminals or the like in a vehicle and used as a wiring material for connecting various electric components in the vehicle.
　電線１２は、芯線１４と、被覆１６とを備える。 The electric wire 12 includes a core wire 14 and a coating 16.
　芯線１４は、複数の素線１４ａが集合した線状の導体である。通常、複数の素線１４ａは撚り合わされているが、これは必須ではない。素線１４ａは銅、銅合金、アルミニウム、アルミニウム合金等の金属線によって形成される。 The core wire 14 is a linear conductor in which a plurality of strands 14a are assembled. Usually, although the some strand 14a is twisted together, this is not essential. The strand 14a is formed of a metal wire such as copper, a copper alloy, aluminum, or an aluminum alloy.
　被覆１６は、芯線１４の周囲に形成された絶縁部材である。被覆１６は、例えば、芯線１４の周りに軟化した樹脂を押出被覆等することによって形成される。 The covering 16 is an insulating member formed around the core wire 14. The coating 16 is formed, for example, by extrusion-coating a softened resin around the core wire 14.
　また、電線１２の端部では、所定長の被覆１６が芯線１４から皮剥されている。これにより、電線１２の一端部に芯線１４が所定長に亘って露出する露出芯線部１５Ａが形成されている。また、電線１２の他端部に芯線１４が所定長に亘って露出する露出芯線部１５Ｂが形成されている。 In addition, a coating 16 having a predetermined length is peeled from the core wire 14 at the end of the electric wire 12. Thereby, the exposed core wire portion 15 </ b> A where the core wire 14 is exposed over a predetermined length is formed at one end portion of the electric wire 12. Moreover, the exposed core wire part 15B which the core wire 14 exposes over predetermined length is formed in the other end part of the electric wire 12. As shown in FIG.
　上記露出芯線部１５Ａにおける素線１４ａの数は、電線１２のうち被覆１６で覆われた箇所における素線１４ａの数よりも少ない。このため、露出芯線部１５Ａは、芯線１４のうち被覆１６で覆われた部分よりも細い。 The number of the strands 14a in the exposed core portion 15A is smaller than the number of the strands 14a in the portion of the electric wire 12 covered with the coating 16. For this reason, the exposed core wire portion 15 </ b> A is thinner than the portion of the core wire 14 covered with the coating 16.
　一方、露出芯線部１５Ｂにおける素線１４ａの数は、電線１２のうち被覆１６で覆われた箇所における素線１４ａの数と同じである。露出芯線部１５Ｂは、露出芯線部１５Ａよりも細い。なお、露出芯線部１５Ｂには、端子３０を圧着する際に圧縮されるため、その分、芯線１４のうち被覆１６で覆われた部分よりも細い。 On the other hand, the number of the wires 14a in the exposed core portion 15B is the same as the number of the wires 14a in the portion of the electric wire 12 covered with the coating 16. The exposed core part 15B is thinner than the exposed core part 15A. Note that the exposed core wire portion 15B is compressed when the terminal 30 is crimped, so that the exposed core wire portion 15B is thinner than the portion of the core wire 14 covered with the coating 16.
　ここでは、電線１２のうち被覆１６で覆われた部分の素線１４ａの数及び露出芯線部１５Ｂの数は１１本であり（図２参照）、露出芯線部１５Ａにおける素線１４ａの数は５本である（図３参照）例が示されている。露出芯線部１５Ａにおける素線１４ａの数は、圧着される２０の芯線圧着部２３のサイズに応じて決定される。 Here, the number of the strands 14a and the number of the exposed core portions 15B of the portion of the electric wire 12 covered with the coating 16 is 11 (see FIG. 2), and the number of the strands 14a in the exposed core portion 15A is 5. An example of a book (see FIG. 3) is shown. The number of strands 14a in the exposed core wire portion 15A is determined according to the size of the 20 core wire crimping portions 23 to be crimped.
　端子２０、３０は、導電性板材である金属板材をプレス加工等することにより形成された部材である。端子２０は、露出芯線部１５Ａに接続され、端子３０は、露出芯線部１５Ｂに接続される。 Terminals 20 and 30 are members formed by pressing a metal plate material that is a conductive plate material. The terminal 20 is connected to the exposed core part 15A, and the terminal 30 is connected to the exposed core part 15B.
　端子３０は、電線接続部３２と相手側接続部３８とが連続して形成された構成とされている。 The terminal 30 has a configuration in which a wire connection portion 32 and a counterpart connection portion 38 are continuously formed.
　電線接続部３２は、電線１２の他端部が接続される部分である。ここでは、電線接続部３２は、芯線圧着部３３と、被覆圧着部３４とを備える。 The wire connection part 32 is a part to which the other end of the wire 12 is connected. Here, the wire connecting portion 32 includes a core wire crimping portion 33 and a covering crimping portion 34.
　芯線圧着部３３は、露出芯線部１５Ｂに圧着された部分である。芯線圧着部３３は、例えば、横断面（電線接続部３２の延在方向に対して直交する方向の）Ｕ字状部分内に露出芯線部１５Ｂを配設した状態で、その両端部を内側に曲げ変形させることで、露出芯線部１５Ｂに圧着される。 The core wire crimping portion 33 is a portion crimped to the exposed core wire portion 15B. The core wire crimping portion 33 is, for example, in a state in which the exposed core wire portion 15B is disposed in a U-shaped portion in a cross section (in a direction orthogonal to the extending direction of the electric wire connecting portion 32), and both ends thereof are inward. By bending and deforming, it is crimped to the exposed core part 15B.
　被覆圧着部３４は、電線１２の被覆１６の端部に圧着された部分である。芯線圧着部３３は、例えば、横断面（電線接続部３２の延在方向に対して直交する方向の）Ｕ字状部分内に被覆１６の端部を配設した状態で、その両端部を内側に曲げ変形させることで、被覆１６の端部に圧着される。被覆圧着部３４は、被覆１６の外周部分にめり込んで、電線１２と端子２０との接続状態を維持する役割を果す。 The covering crimp portion 34 is a portion that is crimped to the end portion of the covering 16 of the electric wire 12. The core wire crimping portion 33 is, for example, in a state in which the end portions of the covering 16 are disposed in a U-shaped portion in a cross section (in a direction perpendicular to the extending direction of the wire connecting portion 32) By being bent and deformed, it is crimped to the end of the coating 16. The covering crimping portion 34 is fitted into the outer peripheral portion of the covering 16 and plays a role of maintaining the connection state between the electric wire 12 and the terminal 20.
　通常、芯線圧着部３３は、内部に上記露出芯線部１５Ｂを配設可能で、かつ、その両端部を内側に曲げ変形させた際に、その内部に露出芯線部１５Ｂを外部にはみ出させることなく収容可能なように、当該露出芯線部１５Ｂの太さ（径）に応じたサイズに形成される。また、通常、被覆圧着部３４は、内部に被覆１６を配設可能で、かつ、その両端部を内側に曲げ変形させた際に、その内部に被覆１６を外部にはみ出させることなく収容可能なように、当該被覆１６の太さ（径）に応じたサイズに形成される。 Normally, the core crimping portion 33 can be provided with the exposed core wire portion 15B inside, and when both ends thereof are bent and deformed inward, the exposed core wire portion 15B does not protrude outside. It is formed in a size corresponding to the thickness (diameter) of the exposed core portion 15B so that it can be accommodated. In general, the cover crimping portion 34 can be provided with the cover 16 inside, and can be accommodated without causing the cover 16 to protrude outside when both ends thereof are bent and deformed inward. Thus, it forms in the size according to the thickness (diameter) of the coating 16.
　上記端子３０は、被覆１６の径がＲ１であり、露出芯線部１５Ｂ（芯線１４）の径がＲ２であるとしたとき、当該Ｒ１及びＲ２に応じたサイズの端子３０として設計及び製造されたものである。 The terminal 30 is designed and manufactured as a terminal 30 having a size corresponding to R1 and R2 when the diameter of the covering 16 is R1 and the diameter of the exposed core portion 15B (core wire 14) is R2. It is.
　端子２０は、電線接続部２２と相手側接続部２８が連続して形成された構成とされている。 The terminal 20 has a configuration in which the wire connection portion 22 and the counterpart connection portion 28 are continuously formed.
　電線接続部２２は、電線１２の一端部が接続される部分である。ここでは、電線接続部２２は、芯線圧着部２３と、被覆圧着部２４とを備える。 The wire connection part 22 is a part to which one end of the wire 12 is connected. Here, the wire connecting portion 22 includes a core wire crimping portion 23 and a covering crimping portion 24.
　芯線圧着部２３は、露出芯線部１５Ａに圧着された部分であり、上記芯線圧着部３３と同様構成とされている。 The core wire crimping portion 23 is a portion that is crimped to the exposed core wire portion 15 </ b> A, and has the same configuration as the core wire crimping portion 33.
　被覆圧着部２４は、電線１２の被覆１６の端部に圧着された部分であり、上記芯線圧着部３３と同様構成とされている。 The coated crimping portion 24 is a portion that is crimped to the end of the coating 16 of the electric wire 12 and has the same configuration as the core wire crimping portion 33.
　もっとも、芯線圧着部２３及び被覆圧着部２４は、それぞれ芯線圧着部３３及び被覆圧着部３４よりも小さく形成されている。例えば、車両において用いられる電線として、被覆の径がＲ１であり、露出芯線部（芯線部）の径がＲ２である第１の電線と、被覆の径がＲ３（但し、Ｒ３＜Ｒ１）であり、露出芯線部（芯線部）の径がＲ４（但し、Ｒ４＜Ｒ２）である比較的細径な第２の電線とが存在する場合を想定する。この場合、通常、第１の電線用に設計及び製造された第１の端子と、第２の電線用に設計及び製造された第２の端子とが存在している。ここで、比較的太径である第１の電線を使用するとする。この場合、電線１２のうち他端側の露出芯線部１５Ｂ側には、第１の端子（端子３０）を圧着接続する。一方、電線１２のうち一端側の露出芯線部１５Ａ側では、露出芯線部１５Ａの素線１４ａの数が削減され、当該露出芯線部１５Ａは細くなっている。そこで、電線１２のうち一端側の露出芯線部１５Ａ側には、細径である第２の電線用の第２の端子（端子２０）を圧着する。 However, the core wire crimping part 23 and the covering crimping part 24 are formed smaller than the core wire crimping part 33 and the covering crimping part 34, respectively. For example, as an electric wire used in a vehicle, the diameter of the coating is R1, the diameter of the exposed core portion (core wire portion) is R2, and the diameter of the coating is R3 (where R3 <R1) Suppose a case where there is a second wire having a relatively small diameter in which the diameter of the exposed core portion (core portion) is R4 (where R4 <R2). In this case, there is usually a first terminal designed and manufactured for the first electric wire and a second terminal designed and manufactured for the second electric wire. Here, it is assumed that the first electric wire having a relatively large diameter is used. In this case, a first terminal (terminal 30) is crimped and connected to the exposed core portion 15B side of the other end of the electric wire 12. On the other hand, on the exposed core wire portion 15A side on one end side of the electric wire 12, the number of the strands 14a of the exposed core wire portion 15A is reduced, and the exposed core wire portion 15A is thin. Therefore, a second terminal (terminal 20) for a second electric wire having a small diameter is pressure-bonded to the exposed core portion 15A side at one end of the electric wire 12.
　このように、本来サイズ的に整合していない電線１２と端子２０とを、露出芯線部１５Ａでの素線１４ａの数を削減することで、サイズ的に整合させて良好に電気的に接続することができる。一般的な電線１２の太さの差異、端子のサイズ差等を考慮すると、被覆１６で覆われた部分の芯線部１４の素線１４ａの数に対する露出芯線部１５Ａの素線１４ａの数の割合いは、３０％～８０％であることが好ましい。なお、芯線圧着部２３に関しては、露出芯線部１５Ａに対する電気的な接続状態を維持し、かつ、機械的な接続状態を維持するための部分である。このため、露出芯線部１５Ａが過圧着されず、かつ、圧着不足とならないように、芯線圧着部２３と露出芯線部１５Ａとをなるべくサイズ的に整合させる必要がある。これに対して、被覆圧着部２４は、電線１２と端子２０との接続状態を維持する役割を果すに過ぎないため、芯線圧着部２３を露出芯線部１５Ａに圧着する際に要請されるサイズの整合性は、それ程は問題とならない。なお、被覆圧着部２４、３４は省略されてもよい。 In this way, the wires 12 and the terminals 20 that are not originally matched in size are connected to each other in a size-matched manner by reducing the number of the strands 14a in the exposed core portion 15A, so that they can be electrically connected satisfactorily. be able to. Considering the difference in the thickness of the general electric wire 12, the difference in the size of the terminal, etc., the ratio of the number of the wires 14a of the exposed core wire portion 15A to the number of the wires 14a of the core wire portion 14 of the portion covered with the coating 16 Alternatively, it is preferably 30% to 80%. The core wire crimping portion 23 is a portion for maintaining an electrical connection state to the exposed core wire portion 15A and maintaining a mechanical connection state. For this reason, it is necessary to match the core wire crimping portion 23 and the exposed core wire portion 15A as much as possible so that the exposed core wire portion 15A is not over-crimped and insufficiently crimped. On the other hand, since the covering crimping portion 24 only plays a role of maintaining the connection state between the electric wire 12 and the terminal 20, the size required when the core wire crimping portion 23 is crimped to the exposed core wire portion 15A. Consistency is not that much of an issue. Note that the coating crimping portions 24 and 34 may be omitted.
　なお、相手側接続部２８、３８は、相手側接続部材に接続される部分である。ここでは、相手側接続部材がメス端子形状、すなわち、筒形状に形成されている。相手側接続部３８は、ピン状又はタブ状のオス端子形状であってもよいし、板部にネジ孔が形成された構成（いわゆる丸型端子形状）に形成されていてもよい。 In addition, the other party connection parts 28 and 38 are parts connected to the other party connection member. Here, the mating connection member is formed in a female terminal shape, that is, a cylindrical shape. The mating connection part 38 may have a pin-shaped or tab-shaped male terminal shape, or may be formed in a configuration in which screw holes are formed in the plate part (so-called round terminal shape).
　上記端子付電線１０の製造方法について説明する。 A method for producing the terminal-attached electric wire 10 will be described.
　複数の素線１４ａが集合した芯線１４と、芯線１４の周囲に形成された被覆１６とを含む電線１２を準備する（工程(a)）。 A wire 12 including a core wire 14 in which a plurality of strands 14a are assembled and a coating 16 formed around the core wire 14 is prepared (step (a)).
　次に、図４に示すように、電線１２の延在方向の一部（ここでは端部）で被覆１６を除去して露出芯線部１５Ａｂを形成する（工程(b)）。この後、露出芯線部１５Ａｂの素線１４ａが撚り合わされている場合には、露出芯線部１５Ａｂをその撚り合せ方向とは逆方向に回転させて、当該撚り合せを解すことが好ましい（図５参照）。 Next, as shown in FIG. 4, the covering 16 is removed at a part (here, the end portion) in the extending direction of the electric wire 12 to form an exposed core portion 15Ab (step (b)). Thereafter, when the strands 14a of the exposed core portion 15Ab are twisted together, it is preferable that the exposed core wire portion 15Ab is rotated in the direction opposite to the twisted direction to untwist the twist (see FIG. 5). ).
　なお、複数の素線１４ａのうち除去される素線１４ａは、束ねられた複数の素線１４ａの一側寄りに存在する一群の素線１４ａであってもよいし、束ねられた複数の素線１４ａの外周囲に存在する一群の素線１４ａであってもよいし、束ねられた複数の素線１４ａ内で散在する一群の素線１４ａであってもよい。 The removed strands 14a out of the plurality of strands 14a may be a group of strands 14a existing near one side of the bundled strands 14a, or the plurality of bundled strands 14a. It may be a group of strands 14a existing around the outer periphery of the wire 14a, or a group of strands 14a scattered within the bundled strands 14a.
　次に、図６に示すように、露出芯線部１５Ａｂで、複数の素線１４ａの一部を他の素線１４ａと分けて、切断刃５０等によって、当該複数の素線１４ａの一部を除去する。これにより、図７に示すように、細くなった露出芯線部１５Ａが形成される（工程(c)）。 Next, as shown in FIG. 6, in the exposed core portion 15 </ b> Ab, a part of the plurality of strands 14 a is separated from the other strands 14 a, and a part of the plurality of strands 14 a is separated by a cutting blade 50 or the like. Remove. As a result, as shown in FIG. 7, the exposed core wire portion 15A that is narrowed is formed (step (c)).
　この後、露出芯線部１５Ａ及び被覆１６の端部に端子２０を圧着する（工程(e)）ことで、端子付電線１０が製造される。 After that, the terminal-attached electric wire 10 is manufactured by crimping the terminal 20 to the exposed core wire portion 15A and the end portion of the covering 16 (step (e)).
　なお、他端については、上記各工程(a)～(e)のうち工程(c)を除く工程を実施することで、同様に、端子３０を圧着するとよい。 In addition, about the other end, it is good to crimp | bond the terminal 30 similarly by implementing the process except the process (c) among said each process (a)-(e).
　以上のように構成された端子付電線１０及びその製造方法によると、複数の素線１４ａの一部を除去して露出芯線部１５Ａを形成するため、当該露出芯線部１５Ａを細くできる。このため、露出芯線部１５Ａに、元々の太さに適した端子（例えば、上記第１の端子）よりも小さいサイズの端子（例えば、上記第２の端子）を圧着できる。この際、太径の電線に細径の電線を継足し接続し、当該細径の電線に当初用いられていた端子を圧着する場合と比較すると、使用部品数の削減（継足し用の電線の削減）、工程数の削減（継足し工程、継足し電線の調尺切断工程等の削減）等が可能となり、低コストな圧着が可能となる。 According to the terminal-attached electric wire 10 configured as described above and the manufacturing method thereof, the exposed core wire portion 15A can be thinned because the exposed core wire portion 15A is formed by removing a part of the plurality of strands 14a. For this reason, a terminal (for example, the second terminal) having a smaller size than the terminal (for example, the first terminal) suitable for the original thickness can be crimped to the exposed core portion 15A. At this time, compared to the case where a thin wire is connected to a thick wire and the terminal used for the thin wire is crimped, the number of parts used (reduction wire Reduction), reduction of the number of processes (reduction of the addition process, the adjustment wire cutting process, etc.), etc., and low-cost crimping is possible.
　また、比較的太い電線であっても、比較的細い電線用の端子を使うことができるため、上記端子としてコネクタ内に収容されるコネクタ端子を用いる場合、比較的細い電線用の端子を収容可能なコネクタを用いることができる。このため、例えば、比較的細い電線から比較的太い電線に変更されたような場合でも、元から用いられていた比較的細い電線及び端子用に設計及び製造されたコネクタを続けて用いることができる。 Moreover, even if the wire is relatively thick, it is possible to use a terminal for a relatively thin wire. Therefore, when using a connector terminal accommodated in the connector as the above terminal, it can accommodate a relatively thin wire terminal. A simple connector can be used. For this reason, for example, even when a relatively thin electric wire is changed to a relatively thick electric wire, a connector designed and manufactured for a relatively thin electric wire and a terminal that were originally used can be used continuously. .
　｛変形例｝
　上記実施形態では、端子付電線１０の他端部には、端子３０が接続された例で説明したが、当該他端部にも、上記端子２０が用いられてもよい。 {Modifications}
In the said embodiment, although the terminal 30 was demonstrated to the other end part of the electric wire 10 with a terminal, the said terminal 20 may be used also for the said other end part.
　また、端子２０の被覆圧着部２４は、比較的太い電線１２に適したサイズに形成されていてもよい。 Moreover, the covering crimping part 24 of the terminal 20 may be formed in a size suitable for the relatively thick electric wire 12.
　また、上記実施形態では、電線１２の端部に端子２０を圧着する例で説明したが、電線の延在方向中間部に露出芯線部が形成され、当該露出芯線部における素線の数がその前後で被覆で覆われる部分の素線の数よりも少なくなっている場合において、当該露出芯線部にスプライス接続用の端子が接続されてもよい。この場合でも、スプライス接続用の端子として、細径用のものを用いることができる。 Moreover, in the said embodiment, although demonstrated in the example which crimps | bonds the terminal 20 to the edge part of the electric wire 12, an exposed core wire part is formed in the extension direction intermediate part of an electric wire, and the number of the strands in the said exposed core wire part is the In the case where the number is less than the number of strands of the portion covered with the covering before and after, a splice connection terminal may be connected to the exposed core portion. Even in this case, a small-diameter terminal can be used as a splice connection terminal.
　なお、上記実施形態及び各変形例で説明した各構成は、相互に矛盾しない限り適宜組合わせることができる。 In addition, each structure demonstrated in the said embodiment and each modification can be suitably combined unless it mutually contradicts.
　以上のようにこの発明は詳細に説明されたが、上記した説明は、すべての局面において、例示であって、この発明がそれに限定されるものではない。例示されていない無数の変形例が、この発明の範囲から外れることなく想定され得るものと解される。 Although the present invention has been described in detail as described above, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention.
　１０　　端子付電線
　１２　　電線
　１４　　芯線
　１４ａ　　素線
　１５Ａ　　露出芯線部
　１６　　　被覆
　２０　　端子
　２３　　芯線圧着部
　２４　　被覆圧着部 DESCRIPTION OF SYMBOLS 10 Electric wire with a terminal 12 Electric wire 14 Core wire 14a Elementary wire 15A Exposed core wire part 16 Covering 20 Terminal 23 Core wire crimping part 24 Covering crimping part

Claims (2)

  1. 　(a)複数の素線が集合した芯線と、前記芯線の周囲に形成された被覆とを含む電線を準備する工程と、
    　(b)前記電線の延在方向の一部で前記被覆を除去して露出芯線部を形成する工程と、
    　(c)前記工程(b)の後で、前記露出芯線部で前記複数の素線の一部を除去する工程と、
    　(d)端子の芯線圧着部を前記露出芯線部に圧着する工程と、
    　を備える端子付電線の製造方法。     (a) preparing an electric wire including a core wire in which a plurality of strands are gathered and a coating formed around the core wire;
    (b) removing the coating at a part in the extending direction of the electric wire to form an exposed core portion;
    (c) after the step (b), removing a part of the plurality of strands at the exposed core portion,
    (d) a step of crimping the core wire crimping portion of the terminal to the exposed core wire portion;
    The manufacturing method of the electric wire with a terminal provided with.
  2. 　複数の素線が集合した芯線と、前記芯線の周囲に形成された被覆とを含み、延在方向の一部に露出芯線部が形成されると共に、前記素線の数が前記被覆で覆われた箇所よりも前記露出芯線部で少ない電線と、
    　前記露出芯線部に圧着された芯線圧着部を含む端子と、
    　を備える端子付電線。     A core wire in which a plurality of strands are aggregated and a coating formed around the core wire, and an exposed core wire portion is formed in a part of the extending direction, and the number of the strands is covered with the coating. Less wires in the exposed core part than the spot,
    A terminal including a core wire crimping portion crimped to the exposed core wire portion;
    An electric wire with a terminal.
PCT/JP2016/088301 2015-12-28 2016-12-22 Method for producing cable with terminal, and cable with terminal WO2017115710A1 (en)

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JP2015256452A JP2017120709A (en) 2015-12-28 2015-12-28 Method of manufacturing electric wire with terminal and electric wire with terminal

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EP4040611A1 (en) * 2021-02-03 2022-08-10 Yazaki Corporation Connection structure of bus bar and cable
EP4040603A1 (en) * 2021-02-03 2022-08-10 Yazaki Corporation Connection structure of press-clamping terminal and cable

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JP7065514B2 (en) * 2018-07-10 2022-05-12 株式会社アイエイアイ Wire harness and wire harness manufacturing method

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Publication number Priority date Publication date Assignee Title
EP4040611A1 (en) * 2021-02-03 2022-08-10 Yazaki Corporation Connection structure of bus bar and cable
EP4040603A1 (en) * 2021-02-03 2022-08-10 Yazaki Corporation Connection structure of press-clamping terminal and cable
JP2022118805A (en) * 2021-02-03 2022-08-16 矢崎総業株式会社 Connection structure between press-clamping terminal and cable
JP7284197B2 (en) 2021-02-03 2023-05-30 矢崎総業株式会社 Busbar and wire connection structure
US11721916B2 (en) 2021-02-03 2023-08-08 Yazaki Corporation Connection structure of bus bar and cable
US11764492B2 (en) 2021-02-03 2023-09-19 Yazaki Corporation Connection structure of press-clamping terminal and cable

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