WO2013146640A1 - Electric wire with terminal attached thereto - Google Patents

Electric wire with terminal attached thereto Download PDF

Info

Publication number
WO2013146640A1
WO2013146640A1 PCT/JP2013/058504 JP2013058504W WO2013146640A1 WO 2013146640 A1 WO2013146640 A1 WO 2013146640A1 JP 2013058504 W JP2013058504 W JP 2013058504W WO 2013146640 A1 WO2013146640 A1 WO 2013146640A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire
core wire
core
terminal
barrel
Prior art date
Application number
PCT/JP2013/058504
Other languages
French (fr)
Japanese (ja)
Inventor
宮本　賢次
平井　宏樹
小野　純一
智也 太田
拓次 大塚
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
Priority to JP2014507849A priority Critical patent/JP5704422B2/en
Publication of WO2013146640A1 publication Critical patent/WO2013146640A1/en

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • 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 an electric wire with a terminal.
  • the mechanical strength in particular, the tensile strength against an impact load (more specifically, the strength at which the crimp terminal holds the electric wire) is lowered.
  • the present invention has been completed based on the above circumstances, and an object thereof is to provide a terminal-attached electric wire that can achieve both good electrical performance and electric wire (core wire) holding power.
  • the present invention relates to a terminal-attached electric wire, an electric wire having a core wire, a crimping member crimped so as to be wound from the outside around the end portion of the core wire exposed from the end portion of the electric wire, the core wire and the crimping member And a terminal provided with a wire barrel crimped from the outside, and a portion of the core wire that is crimped to the wire barrel in a state where the crimping member is wound is a high compression portion, The portion crimped only to the wire barrel is a low compression portion that is compressed lower than the high compression portion.
  • the holding force between the electric wire and the terminal is improved by the wire barrel pressing the core wire in the low compression portion.
  • the core wire is highly compressed by the wire barrel and the crimping member.
  • compression-bonding member are slidably contacted, and the oxide film formed on the surface of the core wire is destroyed and scraped off. Then, the surface of the metal constituting the core wire is exposed. By contacting the exposed metal surface and the wire barrel, the electrical resistance value between the core wire and the terminal can be reduced.
  • FIG. 1 is a side view showing a terminal-attached electric wire according to Embodiment 1-1 of the present invention.
  • FIG. 2 is a perspective view showing a state before a terminal is crimped to an electric wire provided with a crimping member.
  • FIG. 3 is a perspective view showing the crimping member.
  • FIG. 4 is a perspective view showing a state where a crimping member is crimped to the core wire.
  • FIG. 5 is a side view showing a state before the terminal is crimped to the electric wire on which the crimping member is arranged.
  • 6 is a cross-sectional view taken along line VI-VI in FIG. 7 is a cross-sectional view taken along line VII-VII in FIG.
  • FIG. 8 is a perspective view showing a crimping member according to a modification of Embodiment 1-1 of the present invention.
  • FIG. 9 is a side view showing the terminal-attached electric wire according to the embodiment 1-2 of the present invention.
  • FIG. 10 is a perspective view showing the crimping member.
  • FIG. 11 is a side view showing the crimping member.
  • FIG. 12 is a perspective view showing a state before the crimping member is crimped to the core wire.
  • FIG. 13 is a perspective view showing a state before a terminal is crimped to an electric wire provided with a crimping member.
  • FIG. 14 is a side view showing a terminal-attached electric wire according to Embodiment 1-3 of the present invention.
  • FIG. 15 is a perspective view showing the crimping member.
  • FIG. 16 is a side view showing the crimping member.
  • FIG. 17 is a plan view showing the crimping member.
  • FIG. 18 is a front view showing the crimping member.
  • FIG. 19 is a perspective view showing a state before a terminal is crimped to an electric wire provided with a crimping member.
  • FIG. 20 is a plan view showing a state before a terminal is crimped to an electric wire provided with a crimping member.
  • FIG. 21 is a side view showing a state before a terminal is crimped to an electric wire provided with a crimping member.
  • FIG. 22 is a side view of the electric wire with terminal of the embodiment 2-1.
  • FIG. 23 is a side view showing a state in which the electric wire attached with the crimping member is arranged on the terminal.
  • FIG. 24 is a perspective view showing a state in which an electric wire attached with a crimping member is arranged on a terminal.
  • FIG. 25 is a front view showing an electric wire to which a crimping member is attached.
  • FIG. 26 is a perspective view of the crimping member.
  • FIG. 27 is a side view showing the electric wire after undergoing a pressing member attaching step in the method of manufacturing the electric wire with terminal of the embodiment 2-2.
  • FIG. 28 is a front view of the electric wire in the state shown in FIG.
  • FIG. 29 is a side view of the electric wire with terminal according to the embodiment 2-3.
  • FIG. 30 is a side view of the electric wire to which the crimping member is attached.
  • FIG. 31 is a perspective view of an electric wire to which a crimping member is attached.
  • FIG. 32 is a front view of the electric wire to which the crimping member is attached.
  • FIG. 33 is a perspective view of a terminal-attached electric wire according to Embodiment 3-1.
  • FIG. 34 is a partial cross-sectional view of the electric wire with terminal in the longitudinal direction.
  • FIG. 35 is a cross-sectional view taken along line AA in FIG. 36 is a cross-sectional view taken along line BB in FIG.
  • FIG. 37 is a perspective view for explaining a method of manufacturing a terminal-attached electric wire.
  • Connection 327 .. .Core 327A ... End on the connection side 327B ... End on the opposite side of the connection 327C, 327D ... Inclined surface (chamfered shape)
  • X Distance from the end of the wire barrel connecting part to the end of the connecting part of the core Y ... What is the connecting part of the wire barrel from the end opposite to the connecting part of the core Distance to opposite end
  • the terminal-attached electric wire 10 of the present embodiment includes an electric wire 12 including a core wire 11 and a terminal 13 that is crimped to the core wire 11 exposed from the end of the electric wire 12.
  • the terminal 13 according to the present embodiment is a so-called LA terminal.
  • the electric wire 12 includes a core wire 11 formed by twisting a plurality of metal wires 14 and an insulating coating 15 made of a synthetic resin that covers the outer periphery of the core wire 11.
  • the core wire 11 can use arbitrary metals as needed, such as aluminum, an aluminum alloy, copper, a copper alloy. In this embodiment, aluminum or an aluminum alloy is used.
  • the terminal 13 has a generally used shape, and is formed by pressing a metal plate material into a predetermined shape.
  • a metal plate material any metal such as copper, copper alloy, aluminum, aluminum alloy, iron, iron alloy or the like can be used as necessary. In this embodiment, copper or a copper alloy is used. Further, the metal plate material may be plated with an arbitrary metal such as tin or nickel. In this embodiment, tin plating is applied.
  • the terminal 13 is formed by being connected to the wire barrel 16, which is crimped so as to be wound around the outer periphery of the core wire 11 exposed on the end side of the electric wire 12, and insulated.
  • An insulation barrel 17 that is crimped so as to be wound around the outer periphery of the coating 15, and a connection portion 18 that extends from the wire barrel 16 to the opposite side of the insulation barrel 17 and is connected to a mating member (not shown).
  • the connecting portion 18 has a plate shape, and has an insertion hole 19 through which a bolt (not shown) is inserted.
  • a plurality of recesses 20 extending in a direction orthogonal to the axial direction of the electric wire 12 are formed on the surface of the wire barrel 16 on the side where the core wire 11 is placed, arranged side by side in the axial direction of the electric wire 12. Has been.
  • the crimping member 21 is made of an elongated metal plate.
  • the crimping member 21 is formed by pressing a metal plate material into a predetermined shape.
  • the metal constituting the crimping member 21 may be the same as the metal constituting the terminal 13 or may be different.
  • the crimping member 21 is made of copper or a copper alloy, and is made of the same metal as the terminal 13.
  • the thickness dimension of the crimping member 21 may be the same as the thickness dimension of the terminal 13 or may be different. If they are different, the thickness dimension of the crimping member 21 may be thicker than that of the terminal 13 or may be thinner.
  • the crimping member 21 is crimped so as to be wound around the outer periphery of the core wire 11.
  • the length dimension of the crimping member 21 is set to a length that can surround the outer periphery of the core wire 11.
  • the electric wire 12 is placed on the terminal 13 from the direction indicated by the arrow A. Specifically, the insulation coating 15 of the electric wire 12 is placed on the insulation barrel 17, and the core wire 11 and the crimping member 21 crimped to the core wire 11 are placed on the wire barrel 16. A part of the crimping member 21 is arranged so as to protrude forward from the side edge of the wire barrel 16 in the axial direction of the electric wire 12.
  • FIG. 1 shows a state where the insulation barrel 17 and the wire barrel 16 are crimped to the electric wire 12. As described above, the insulation barrel 17 is pressure-bonded so as to be wound around the outer periphery of the insulating coating 15.
  • the wire barrel 16 is crimped so as to be wound around the outer periphery of the core wire 11 and the outer periphery of the crimping member 21 crimped to the core wire 11.
  • a portion of the crimping member 21 that protrudes from the edge of the wire barrel 16 is a protruding portion 22.
  • the core wire 11 slightly protrudes from the tip of the protrusion 22.
  • a region of the core wire 11 that is crimped only by the wire barrel 16 is a low-compression portion 23 that is relatively low-compressed.
  • the compression rate is defined as ⁇ (cross-sectional area of the conductor after compression) / (cross-sectional area of the conductor before compression) ⁇ ⁇ 100 (%).
  • Low compression means that the compression rate shows a large value
  • high compression means that the compression rate shows a small value.
  • the region crimped by the wire barrel 16 and the crimping member 21 is highly compressed by the thickness dimension of the crimping member 21 compared to the low compression portion 23.
  • the high compression unit 24 is used.
  • the compression rate in the low compression part 23 is preferably larger than 50%, more preferably 60 to 90%, and particularly preferably 70 to 80%.
  • the core wire 11 is highly compressed by the wire barrel 16 and the crimping member 21.
  • compression-bonding member 21 are slidably contacted, and the oxide film formed on the surface of the core wire 11 is destroyed and scraped off. Then, the surface of the metal constituting the core wire 11 is exposed.
  • the electrical resistance value between the core wire 11 and the terminal 13 can be reduced.
  • the strands 14 constituting the core wire 11 are rubbed strongly. As a result, the oxide film formed on the surface of the strand 14 is destroyed, and the metal surface constituting the strand 14 is exposed. When the metal surfaces come into contact with each other, the electrical resistance value between the strands 14 can be reduced. Thereby, the wire 14 located near the center of the core wire 11 can also contribute to the electrical connection with the terminal 13. As a result, the electrical resistance value between the core wire 11 and the terminal 13 can be further reduced.
  • the compressibility of the core wire 11 in the high compression portion 24 is preferably 50% or less, and is preferably 35% or less in order to destroy the oxide film on the surface of the core wire 11 to ensure a small electrical resistance and good electrical performance. More preferably, it is more preferably 25% or less, and particularly preferably 20% or less.
  • the compression ratio is 50% or less
  • the oxide film of the core wire 11 can be broken. Thereby, the electrical resistance value of the core wire 11 and the terminal 13 can be made small.
  • the compression rate is 35% or less
  • the surfaces of the strands 14 constituting the core wire 11 are microscopically adhered to each other, so that the electrical resistance value can be reduced.
  • the compression rate is 25% or less
  • the wires 14 adhere macroscopically, so that the electrical resistance value can be further reduced.
  • the compression ratio is 20% or less
  • the strands 14 can be reliably adhered to each other, so that the electrical resistance value can be reliably reduced.
  • the core wire 11 protruding from the end edge of the wire barrel 16 is in a state of being crimped by the projecting portion 22 of the crimping member 21.
  • the core wire 11 bulges from the edge of the wire barrel 16 by the pressure added to the wire barrel 16.
  • the core wire 11 contacts and short-circuits members other than the terminal 13.
  • the core wire 11 is highly compressed in the high compression portion 24, the core wire 11 is easily swelled from the wire barrel 16, which is particularly effective.
  • the use of the conventional terminal 13 as it is and the addition of a simple process of crimping the crimping member 21 to the core wire 11 makes it possible to ensure good electrical conductivity and the electric wire 12 (core wire 11). ) It is possible to achieve both securing of holding power.
  • a concave portion 25 may be formed on the surface of the crimping member 21 that contacts the core wire 11. As shown in FIG. 8, the recess 25 may be formed in a groove shape extending in the length direction of the crimping member 21. Although not shown in detail, the plurality of recesses 25 may be arranged discretely on the surface of the crimping member 21 that contacts the core wire 11.
  • the crimping member 31 provided in the terminal-attached electric wire 30 according to the present embodiment includes a core wire contact portion 32 that contacts the edge of the core wire 11.
  • the crimping member 31 having a long and narrow plate shape extends in the axial direction of the electric wire 12 in the direction perpendicular to the axial direction of the electric wire 12 in the vicinity of the center in the length direction.
  • a core wire contact portion 32 that is bent toward the core wire 11 is formed.
  • the core wire contact portion 32 is configured to contact the edge of the core wire 11 in a state where the crimp member 31 is crimped to the outer periphery of the core wire 11.
  • a crimping member 31 is disposed on the outer periphery of the core wire 11, and the crimping member 31 is crimped to the core wire 11. It has become so.
  • the electric wire 12 in which the crimping member 31 is crimped to the core wire 11 is connected to the terminal 13. Specifically, the insulation coating 15 of the electric wire 12 is placed on the insulation barrel 17, and the core wire 11 and the crimping member 31 of the electric wire 12 are placed on the wire barrel 16. Thereafter, the insulation barrel 17 is caulked to the outer periphery of the insulating coating 15, and the wire barrel 16 is caulked to the outer periphery of the core wire 11 and the crimping member 31.
  • the core wire contact portion 32 is arranged on the terminal 13 in a state of further protruding from the protruding portion 33 protruding from the tip of the wire barrel 16.
  • the crimping member 31 is provided with the core wire abutting portion 32 that abuts on the end portion of the core wire 11, and therefore, when the crimping member 31 is assembled to the core wire 11, the core wire abutting portion 32. By abutting against the edge of the core wire 11, the core wire 11 and the crimping member 31 can be easily positioned. This eliminates the need to peel off the insulation coating 15 when the insulation coating 15 is peeled off.
  • the core wire contact portion 32 is in contact with the edge of the core wire 11, it is possible to suppress the strand 14 constituting the core wire 11 from protruding from the edge of the core wire 11. Thereby, after crimping
  • the crimping member 41 provided in the terminal-attached electric wire 40 according to the present embodiment includes a wire barrel contact portion 42 that contacts the side edge of the wire barrel 16.
  • an elongated plate-like crimping member 41 is formed with a core wire contact portion 43 that extends from the vicinity of the center in the longitudinal direction and is bent toward the core wire 11. .
  • the core wire abutting portion 43 abuts on the edge of the core wire 11 in a state where the crimp member 41 is crimped to the core wire 11.
  • a pair of wire barrel contact portions 42 extending toward the crimping member 41 are formed on the side edges of the core wire contact portion 43. As shown in FIGS. 17 and 18, the wire barrel abutting portion 42 is arranged at a position outside the crimping member 41.
  • the crimping member 41 is crimped to the outer periphery of the core wire 11 with the core wire abutting portion 43 in contact with the end edge of the core wire 11.
  • the electric wire 12 in which the crimping member 41 is crimped to the core wire 11 is connected to the terminal 13. Specifically, the insulating coating 15 of the electric wire 12 is placed on the insulation barrel 17, and the core wire 11 and the crimping member 41 of the electric wire 12 are placed on the wire barrel 16. Thereafter, the insulation barrel 17 is caulked to the outer periphery of the insulating coating 15, and the wire barrel 16 is caulked to the outer periphery of the core wire 11 and the crimping member 41.
  • the tip of the wire barrel abutting portion 42 abuts on the side edge of the wire barrel 16.
  • the length dimension of the wire barrel abutting portion 42 extending from the core wire abutting portion 43 toward the crimping member 41 side has a length dimension in which the crimping member 41 and the wire barrel 16 overlap. It is set up. That is, first, when the tip of the wire barrel contact portion 42 contacts the side edge of the wire barrel 16, the relative position of the crimping member 41 with respect to the side edge of the wire barrel 16 is determined. As a result, the length dimension in which the crimping member 41 overlaps the wire barrel 16 is determined. Thereby, the length dimension of the high compression part 24 by which the core wire 11 is crimped
  • the crimping member 41 includes a protruding portion 44 that protrudes from the end edge of the wire barrel 16.
  • the wire barrel contact portion 42 contacts the side edge of the wire barrel 16, whereby the relative position between the wire barrel 16 and the crimping member 41 can be determined. Thereby, the length dimension of the high compression part 24 can be defined reliably.
  • the present invention is not limited to the embodiments described with reference to the above description and drawings.
  • the following embodiments are also included in the technical scope of the present invention.
  • the crimping member may be thermocompression bonded to the core wire 11.
  • the core wire 11 is a stranded wire formed by twisting a plurality of strands 14, but is not limited thereto, and may be a single core wire made of a metal bar.
  • the terminal is an LA terminal. However, the terminal is not limited to this, and a terminal having an arbitrary shape such as a male terminal or a female terminal can be used.
  • the crimping member may have a penetrating cylindrical shape or a bottomed cylindrical shape.
  • the technology disclosed in the present specification is an electric wire with a terminal, an electric wire having a core wire, and a crimping member that is crimped so as to be wound from the outside around the end portion of the core wire exposed from the end portion of the electric wire,
  • a terminal having a wire barrel crimped to the core wire and the crimp member from outside, and a portion of the core wire that is crimped to the wire barrel in a state where the crimp member is wound is a high compression portion.
  • the portion of the core wire that is crimped only to the wire barrel is a low compression portion that is compressed lower than the high compression portion.
  • the holding force between the electric wire and the terminal is improved by the wire barrel pressing the core wire in the low compression portion.
  • the core wire is highly compressed by the wire barrel and the crimping member.
  • compression-bonding member are slidably contacted, and the oxide film formed on the surface of the core wire is destroyed and scraped off.
  • the surface of the metal constituting the core wire is exposed.
  • compression-bonding member has a protrusion part which protrudes from the edge of the said wire barrel.
  • the core wire which protrudes from the edge of a wire barrel is the state crimped
  • the crimping member includes a core wire contact portion that contacts an end portion of the core wire. According to said aspect, when assembling a crimping
  • the crimp member includes a wire barrel abutting portion that abuts on a side edge of the wire barrel.
  • compression-bonding member and a wire barrel overlap can be set correctly by setting the length dimension of a wire barrel contact part suitably. That is, first, the relative position of the crimping member with respect to the side edge of the wire barrel is determined by the tip of the wire barrel contact portion coming into contact with the side edge of the wire barrel. As a result, the length dimension in which the crimping member overlaps the wire barrel is determined. Thereby, the length dimension of the high compression part by which the core wire is crimped
  • the core wire includes a plurality of metal strands, and the compression ratio is defined as ⁇ (cross-sectional area of the conductor after compression) / (cross-sectional area of the conductor before compression) ⁇ ⁇ 100 (%).
  • the compression ratio of the part is set to be larger than 50%, the compression ratio of the high compression part is preferably set to 50% or less, more preferably set to 35% or less, 25% More preferably, it is set below, and it is especially preferable that it is set to 20% or less.
  • the compression ratio is 50% or less
  • the oxide film on the core wire can be broken.
  • the electrical resistance value of a core wire and a terminal can be made small.
  • the compression rate is 35% or less
  • the surfaces of the strands constituting the core wire are microscopically adhered to each other, so that the electrical resistance value can be reduced.
  • the compression rate is 25% or less
  • the wires are macroscopically adhered to each other, so that the electrical resistance value can be further reduced.
  • the compression ratio is 20% or less, the strands can be securely adhered to each other, and thus the electrical resistance value can be reliably reduced.
  • the cross-sectional area of the core wire is greatly reduced, the mechanical strength, in particular, the tensile strength against an impact load (more specifically, the strength at which the crimp terminal holds the electric wire) is lowered.
  • the core wire may be stretched and jumped out or expanded. Since the stretched core wire is easily lost, there is a problem of causing a short circuit.
  • the technology disclosed in the present specification has been completed based on the above situation, and has a terminal that achieves both good electrical performance and core wire holding force and prevents the core wire from popping out.
  • the purpose is to provide electric wires.
  • the terminal-attached electric wire 210 includes an electric wire 211, a crimping member 227 crimped to a core wire 212 (also referred to as an exposed core wire 212) exposed at an end of the electric wire 211, and a crimping member. 227 and a terminal 220 that is crimped to the exposed core wire 212.
  • the terminal 220 according to the present embodiment is a so-called LA terminal.
  • the electric wire 211 includes a core wire 212 formed by twisting a plurality of metal wires 214, and an insulating coating 213 made of a synthetic resin that covers the outer periphery of the core wire 212.
  • the core wire 212 can use arbitrary metals as needed, such as aluminum, an aluminum alloy, copper, a copper alloy. In the present embodiment, a plurality of metal wires 214 made of aluminum or aluminum alloy are used. At the end of the electric wire 211, the core wire 212 is exposed by peeling and removing the insulating coating 213.
  • the terminal 220 has a generally used shape, and is formed by pressing a metal plate material into a predetermined shape.
  • a metal plate material any metal such as copper, copper alloy, aluminum, aluminum alloy, iron, iron alloy or the like can be used as necessary. In this embodiment, copper or a copper alloy is used. Further, the metal plate material may be plated with an arbitrary metal such as tin or nickel. In this embodiment, tin plating is applied.
  • the terminal 220 is formed to be connected to the wire barrel 221 that is crimped so as to be wound around the outer periphery of the exposed core wire 212 exposed on the end portion side of the electric wire 211, and the wire barrel 221.
  • An insulation barrel 222 that is crimped to wrap around the outer periphery of the insulating coating 213, and a connection portion 224 that extends from the wire barrel 221 to the opposite side of the insulation barrel 222 and is connected to a mating member (not shown). .
  • connection portion 224 has a plate shape, and an insertion hole 225 through which a bolt (not shown) is inserted is formed to penetrate in the plate thickness direction.
  • a plurality of recesses 226 extending in a direction orthogonal to the axial direction of the electric wire 211 are formed in the wire barrel 221 so as to be arranged in the axial direction of the electric wire 211 on the surface on which the core wire 212 is placed. Has been.
  • a crimping member 227 is attached to the core wire 212 exposed at the end of the electric wire 211.
  • the crimping member 227 is formed by pressing a metal plate into a predetermined shape.
  • the metal constituting the crimping member 227 may be the same as the metal constituting the terminal 220 or may be different.
  • the crimping member 227 is made of the same metal as the terminal 220, is made of copper or a copper alloy, and is tin-plated.
  • the thickness dimension of the crimping member 227 may be the same as the thickness dimension of the terminal 220 or may be different. If they are different, the thickness dimension of the crimping member 227 may be thicker than that of the terminal 220 or may be thinner.
  • the crimping member 227 has two sets of crimping pieces 228 and 229 as shown in FIG. 26, and the two sets of crimping pieces 228 and 229 are provided integrally with a space therebetween. It has been.
  • the pair of pressure-bonding pieces 228 on the left side is referred to as a first pressure-bonding piece 228, and the pair of pressure-bonding pieces 229 on the right side in the drawing is referred to as a second pressure-bonding piece 229.
  • the pair of first crimping pieces 228 are crimped so as to be wound around the outer periphery of the exposed core wire 212, and are crimped so that the wire barrel 221 of the terminal 220 is wound around the outer periphery thereof. It is like that. That is, the first crimping piece 228 has a function of being crimped to the core wire 212 together with the wire barrel 221 and compressing the core wire 212 with a higher compressive force than a portion to which only the wire barrel 221 is crimped.
  • the pair of second crimping pieces 229 are crimped so as to be wound around the outer periphery of the exposed core wire 212 closer to the tip of the exposed core wire 212 than the first crimped piece 228, It is arranged closer to the tip of the core wire 212 than the end edge of the wire barrel 221.
  • the second crimping piece 229 has a function of preventing the core wire 212 from jumping out from the crimping member 227 (an example of a pressing member). Therefore, in this embodiment, the pressing member 229 is a member integrated with the crimping member 227.
  • FIG. 22 shows a state where the insulation barrel 222 and the wire barrel 221 are crimped to the electric wire 211. As described above, the insulation barrel 222 is crimped so as to be wound around the outer periphery of the insulating coating 213.
  • the wire barrel 221 is crimped so as to be wound around the outer periphery of the core wire 212 and the outer periphery of the crimp member 227 crimped to the core wire 212.
  • the second crimping piece 229 protrudes from the end edge of the wire barrel 221.
  • the core wire 212 slightly protrudes from the tip of the second crimping piece 229.
  • the region of the core wire 212 that is crimped only by the wire barrel 221 is a low-compression portion 216 that is relatively low-compressed.
  • the compression rate is defined as ⁇ (cross-sectional area of the conductor after compression) / (cross-sectional area of the conductor before compression) ⁇ ⁇ 100 (%).
  • Low compression means that the compression rate shows a large value
  • high compression means that the compression rate shows a small value.
  • a region of the core wire 212 that is crimped by the wire barrel 221 and the crimping member 227 is a high compression portion 215 that is highly compressed by the thickness of the crimping portion as compared to the low compression portion 216.
  • the compression rate is preferably 50% or less in the high compression portion 215, more preferably 35% or less, further preferably 25% or less, and 20% or less. Particularly preferred.
  • the oxide film of the core wire 212 can be broken, and thereby the contact resistance between the core wire 212 and the terminal 220 can be reduced.
  • the compression rate is 35% or less, the surfaces of the strands 214 constituting the core wire 212 are microscopically adhered to each other, so that the electrical resistance value can be reduced.
  • the compression rate is 25% or less, the wires 214 adhere macroscopically, so that the electrical resistance value can be further reduced.
  • the compression ratio is 20% or less, the strands 214 can be securely adhered to each other, so that the electrical resistance value can be reliably reduced.
  • the compression rate of the core wire 212 in the low compression portion 216 is preferably greater than 50% in order to prevent breakage of the core wire 212 and ensure a good holding force of the electric wire 211 (core wire 212), and is preferably 60 to 90%. Is more preferable, and 70 to 80% is particularly preferable.
  • the terminal-attached electric wire 210 of this embodiment can be manufactured by the following method.
  • the insulation coating 213 at the end of the electric wire 211 is peeled and removed to expose the core wire 212, while the metal plate material is pressed to produce the terminal 220 and the crimping member 227.
  • the core wire 212 exposed at the end of the electric wire 211 is placed on the crimp member 227 shown in FIG. 26, and the first crimp piece 228 of the crimp member 227 is crimped to the core wire 212.
  • the crimping member 227 is positioned with respect to the core wire 212 (see FIGS. 23 to 25).
  • the electric wire 211 to which the first crimping piece 228 is attached is placed on the terminal 220.
  • the second crimping piece 229 of the crimping member 227 is arranged on the left side in FIG. 23 (that is, on the connection part 224 side of the terminal 220) from the tip of the wire barrel 221.
  • the second crimping piece 229 (pressing member 229) of the crimping member 227 and the wire barrel 221 of the terminal 220 are caulked and crimped to the core wire 212 of the electric wire 211, and the crimping process and the pressing member attaching process are executed almost simultaneously.
  • the portion of the core wire 212 crimped by the first crimping piece 228 receives a high compressive force and the core wire 212 tends to jump out in the direction of the connection portion 224 of the terminal 220. Therefore, the core wire 212 protrudes slightly from the tip of the second crimping piece 229.
  • a region of the core wire 212 that is crimped only by the wire barrel 221 is the low compression portion 216, and a region that is crimped by the wire barrel 221 and the crimping member 227 is compared to the low compression portion 216.
  • the high compression portion 215 is highly compressed by the thickness of the crimping portion.
  • the insulation barrel 222 is crimped to a portion of the electric wire 211 covered with the insulating coating 213, the electric wire with terminal 210 of the present embodiment is obtained.
  • the core wire 212 is compressed by the wire barrel 221 and the crimping member 227 in the high compression portion 215, so that the oxide film formed on the surface of the core wire 212 is destroyed by the sliding contact between the core wire 212 and the crimping member 227.
  • the new surface of the metal is exposed.
  • the contact resistance between the core wire 212 and the terminal 220 can be reduced by the contact between the new surface and the wire barrel 221.
  • the portion (low compression portion 216) crimped only to the wire barrel 221 of the core wire 212 is compressed lower than the high compression portion 215, the holding force between the electric wire 211 and the terminal 220 can be increased.
  • the terminal-attached electric wire 210 since the terminal-attached electric wire 210 includes a pressing member 229 that prevents the core wire 212 from jumping out from the crimping member 227, the crimping member 227 and the wire barrel 221 are crimped to increase the core wire 212. Even if a crimping force is applied, the core wire 212 is prevented from protruding from the crimping member 227.
  • the terminal-attached electric wire 210 that achieves both good electrical performance and holding power of the core wire 212 and prevents the core wire 212 from jumping out.
  • the core wire 212 can be prevented from being cut when the pressing member 229 is attached to the core wire 212.
  • the number of parts can be reduced.
  • the second crimping piece 229 (pressing member 229) is attached and the wire barrel 221 is attached. Since the crimping is performed almost simultaneously, the crimping member 227 can be attached to the core wire 212 and the wire barrel 221 can be crimped efficiently.
  • Embodiment 2-2 of the present invention relates to another method of manufacturing the terminal-attached electric wire 210 of Embodiment 2-1, and was used in the description of Embodiment 2-1 in addition to FIGS. 27 and 28. This will be described with reference to FIGS.
  • the first crimping piece 228 and the second crimping piece 229 of the crimping member 227 shown in FIG. 26 are respectively crimped to the core wire 212 exposed at the end of the electric wire 211. 27, the electric wire 211 to which the crimping member 227 shown in FIG.
  • the second crimping piece 229 (pressing member 229) is attached to the core wire 212 in a state of being wound around the outer periphery of the core wire 212.
  • the first crimping piece 228 (crimping member 227) is attached in a state where it is wound around the outer periphery of the core wire 212 near the insulating coating 213 from the tip.
  • the core wire 212 to which the second crimping piece 229 and the first crimping piece 228 are attached is placed so that the second crimping piece 229 is arranged closer to the connection part 224 of the terminal 220 than the edge of the wire barrel 221.
  • the wire barrel 221 is crimped to the core wire 212 and crimped (crimping step).
  • the core wire 212 tends to jump out in the direction of the connecting portion 224 of the terminal 220 by receiving a high compressive force, but is pressed by the second crimping piece 229. Since the wire barrel 221 is crimped in this state, the core wire 212 protrudes slightly from the tip of the second crimping piece 229.
  • a region of the core wire 212 that is crimped only by the wire barrel 221 is the low compression portion 216, and a region that is crimped by the wire barrel 221 and the crimping member 227 is compared to the low compression portion 216.
  • the high compression portion 215 is highly compressed by the thickness of the crimping portion.
  • the wire barrel 221 can be crimped even if the vertical direction of the core wire 212 to which the crimping member 227 is attached is opposite to the orientation shown in FIG.
  • the terminal-attached electric wire 230 of the present embodiment includes an electric wire 211, a crimping member 237 crimped to a core wire 212 (also referred to as an exposed core wire 212) exposed at the end of the electric wire 211, and a crimping member. 237 and a terminal 220 that is crimped to the exposed core wire 212.
  • the terminal-attached electric wire 230 of the present embodiment is different from the embodiment 2-1 in the shape of the crimping member 237.
  • the same components as those in Embodiment 2-1 are denoted by the same reference numerals, and redundant description is omitted.
  • the crimping member 237 is formed integrally with a pair of crimping pieces 238 and a crimping piece 238 at an interval, and has a Greek letter capital omega shape. And a pressing piece 239 (pressing member).
  • the crimping piece 238 is crimped so as to be wound around the outer periphery of the exposed core wire 212, and is crimped so that the wire barrel 221 of the terminal 220 is wound around the outer periphery thereof.
  • the crimping piece 238 has a function of being crimped to the core wire 212 together with the wire barrel 221 and compressing the core wire 212 with a higher compressive force than a portion to which only the wire barrel 221 is crimped.
  • the crimping piece 238 has the same shape as the first crimping piece 228 of the embodiment 2-1.
  • the pressing piece 239 is attached so as to cover the exposed core wire 212 and press the core wire 212 from above, closer to the tip of the exposed core wire 212 than the crimping piece 238.
  • the holding piece 239 is arranged closer to the tip end of the core wire 212 than the end edge of the wire barrel 221.
  • the pressing piece 239 has a function of preventing the core wire 212 from jumping out from the crimping member 237 (an example of a pressing member). That is, the pressing member 239 of this embodiment is also integral with the crimping member 237.
  • the electric wire with terminal 230 of the present embodiment can be manufactured by the following method.
  • the core wire 212 exposed at the end of the electric wire 211 is placed on the crimp member 237, and a pair of crimp pieces 238 are crimped to the core wire 212.
  • the crimping member 237 is positioned with respect to the core wire 212 by crimping the pair of crimping pieces 238 (see FIGS. 31 and 32).
  • the direction of the electric wire 211 is placed on the terminal 220 so that the pressing piece 239 is arranged on the upper side.
  • the holding piece 239 is arranged on the left side in FIG. 29 (that is, on the connection part 224 side of the terminal 220) from the tip of the wire barrel 221.
  • the wire barrel 221 of the terminal 220 is caulked and crimped to the core wire 212 of the electric wire 211, and the crimping process is executed.
  • the crimped portion of the crimping piece 238 receives a high compressive force, and the core wire 212 tends to jump out in the direction of the connecting portion 224 of the terminal 220.
  • the core piece 212 is arranged at a position facing the holding piece 239 and the holding piece 239.
  • the core wire 212 is slightly protruded from the tip of the pressing piece 239 by being pressed by the terminal surface 223 that is present.
  • a region of the core wire 212 that is crimped only by the wire barrel 221 is the low compression portion 216, and a region that is crimped by the wire barrel 221 and the crimping member 237 is compared to the low compression portion 216.
  • the high compression portion 15 is highly compressed by the thickness dimension of the crimping portion.
  • the pressing piece 239 is pressed against the core wire 212 by crimping the wire barrel 221 to the core wire 212 with the crimping piece 238 attached, and at a position facing the pressing piece 239 and the pressing piece 239.
  • the core wire 212 is clamped by a certain terminal surface 223 to prevent the core wire 212 from protruding from the crimping member 237. Therefore, according to this embodiment, even if a high crimping force is applied to the core wire 212 due to the crimping of the crimp member 237 and the wire barrel 221, the core wire 212 is prevented from jumping out from the crimp member 237.
  • the pressing piece 239 is attached so as to be pressed from the upper side of the core wire 212, it is possible to prevent the core wire 212 from being cut at the time of attachment. Since the other points are substantially the same as those of the embodiment 2-1, the present embodiment can provide the same effects as those of the embodiment 2-1.
  • the technology disclosed in this specification includes an electric wire formed by covering a core wire with an insulating coating, and a crimping member that is crimped so as to be wound from the outside around the core wire exposed by peeling off the insulating coating at an end portion of the electric wire. And a terminal having a wire barrel crimped to the core wire and the crimping member from the outside, and a portion of the core wire that is crimped to the wire barrel in a state where the crimping member is wound is a high compression portion.
  • the portion of the core wire that is crimped only to the wire barrel is a low compression portion that is compressed lower than the high compression portion, and is attached to the core wire, and the core wire pops out from the crimping member. It is an electric wire with a terminal provided with the pressing member which prevents.
  • the technique disclosed in this specification is pressure-bonded so as to be wound from the outside around an electric wire obtained by coating a core wire with an insulating coating and an end portion of the electric wire exposed by peeling off the insulating coating.
  • a method of manufacturing an electric wire with a terminal comprising: a crimping member; and a terminal having a wire barrel crimped to the core wire and the crimping member from the outside, wherein the core wire protrudes from the crimping member to an end portion of the core wire.
  • the crimped portion is a high compression portion, and the portion of the core wire that is crimped only to the wire barrel is compressed lower than the high compression portion. And a method of manufacturing an electric wire with terminal to perform a crimping step of the low compression portion.
  • the core wire in the high compression portion, is compressed by the wire barrel and the crimping member, so that the oxide film formed on the surface of the core wire is broken by the sliding contact between the core wire and the crimping member. The new surface is exposed. Contact resistance between the core wire and the terminal can be reduced by contacting the new surface and the wire barrel.
  • the portion (low compression portion) crimped only to the wire barrel is compressed lower than the high compression portion, the holding force between the electric wire and the terminal can be increased.
  • the electric wire with terminal since the electric wire with terminal includes a pressing member that prevents the core wire from jumping out from the crimping member, a high crimping force is applied to the core wire by crimping the crimping member and the wire barrel. Even so, the core wire is prevented from popping out from the crimping member.
  • the technology disclosed in this specification may have the following configuration.
  • the pressing member may be attached so as to be wound from the outside of the core wire.
  • the pressing member In the pressing member mounting step, the pressing member may be mounted so as to be wound from the outside of the core wire.
  • the core wire can be prevented from being cut when the holding member is attached to the core wire.
  • the pressing member and the crimping member may be integrated.
  • the pressing member integral with the crimping member may be attached.
  • the core wire includes a plurality of metal strands, and the compression ratio defined by ⁇ (cross-sectional area of the conductor after compression) / (cross-sectional area of the conductor before compression) ⁇ ⁇ 100 (%) is the high compression It may be 50% or less in the part.
  • the core wire includes a plurality of metal wires and is defined as ⁇ (cross-sectional area of the conductor after compression) / (cross-sectional area of the conductor before compression) ⁇ ⁇ 100 (%) in the high compression portion. You may compress so that a compression rate may be 50% or less.
  • the oxide film on the core wire can be destroyed, thereby reducing the contact resistance between the core wire and the terminal.
  • an electric wire with a terminal described in JP 2010-62097 A is known.
  • the electric wire and the terminal are electrically connected to each other by crimping the wire barrel formed on the terminal around the core wire exposed from the end of the electric wire so as to be wound from the outside.
  • the core wire is stretched because the end portion on the connection portion side of the wire barrel is pressed with a high compressive force on the portion of the core wire that is disposed on the end portion on the connection portion side of the wire barrel.
  • disconnection is likely to occur as the core wire that protrudes to the connection portion is cut off.
  • the technology disclosed in the present specification has been completed based on the above-described circumstances, and has a terminal-attached electric wire that achieves both good electrical performance and core wire retention and prevents disconnection.
  • the purpose is to provide.
  • the terminal-attached electric wire 310 of the present embodiment includes an electric wire 311 and a terminal 320 that is crimped to the core wire 312 exposed by peeling off the insulating coating 313 at the end of the electric wire 311.
  • the electric wire 311 includes a core wire 312 formed by twisting a plurality of metal wires 314 and an insulating coating 313 made of a synthetic resin that covers the outer periphery of the core wire 312.
  • a core wire 312 any metal such as aluminum, aluminum alloy, copper, copper alloy, or the like can be used as necessary.
  • a plurality of metal strands 314 made of aluminum or aluminum alloy are used.
  • the core wire 312 is exposed by peeling off the insulating coating 313.
  • the terminal 320 has a generally used shape, and is formed by pressing a metal plate material into a predetermined shape.
  • a metal plate material any metal such as copper, copper alloy, aluminum, aluminum alloy, iron, iron alloy or the like can be used as necessary. In this embodiment, copper or a copper alloy is used. Further, the metal plate material may be plated with an arbitrary metal such as tin or nickel. In this embodiment, tin plating is applied.
  • the terminal 320 has a bottom plate 323 on which the exposed core wire 312 exposed on the end side of the electric wire 311 is placed, and a generally rectangular shape extending so as to rise from both sides of the bottom plate 323.
  • a pair of wire barrels 321 and 321 which are crimped so as to be wound around the outer periphery of the core wire 312, and insulation barrels 322 and 322 which are formed continuously to the wire barrel 321 and are crimped so as to be wound around the outer periphery of the insulating coating 313.
  • the terminal 320 extends from the end 323A (an example of the one end 323A) of the bottom plate 323 opposite to the insulation barrel 322 along the axial direction (length direction) of the electric wire 311 and is not illustrated.
  • a connection portion 324 connected to the counterpart member.
  • the connecting portion 324 has a plate shape, and an insertion hole 325 through which a bolt (not shown) is inserted is formed to penetrate in the plate thickness direction.
  • the wire barrel 321 and the bottom plate 323 have a plurality of recesses 326 extending in a direction perpendicular to the axial direction of the electric wire 311 on the surface on which the core wire 312 is placed, spaced apart in the axial direction of the electric wire 311. It is formed side by side.
  • a core 327 is combined with such a conventional terminal 320.
  • the core 327 is formed by bending an elongated metal plate of the same type as the terminal 320 at an angle that exactly overlaps the core plate 312 with the bottom plate 323 and the pair of wire barrels 321 and 321 before being crimped.
  • the length of the core 327 is slightly shorter than the length dimension from the tip 321C of one wire barrel 321 to the tip 321C of the other wire barrel 321, and the width of the core 327 is the (axis of the wire barrel 321). It is set to about 1 ⁇ 2 of the length between the two ends 321A and 321B (in the direction).
  • the core 327 is arranged such that the end 327A on the connection part side (the end 327A on the left side in FIG. 34) is spaced from the end 321A on the connection part side of the wire barrel 321, and the whole Overlaid on the wire barrel 321.
  • the position of the core 327 is such that the distance X from the end 321A on the connection part side of the wire barrel 321 to the end 327A on the connection part side of the core 327 is the end 327B on the opposite side to the connection part of the core 327.
  • the distance Y is set to be equal to or less than the distance Y from the connection portion of the wire barrel 321 to the end portion 321B on the opposite side.
  • the core 327 is overlapped with the wire barrel 321 so that the thickness dimension of the wire barrel 321 is larger than that of other portions (see FIG. 34).
  • a portion where the core 327 of the wire barrel 321 is overlapped is formed with a high compression portion 315 that is more highly compressed than other portions, as shown in FIG. 35.
  • only the wire barrel 321 is crimped on both sides of the core wire 312 with the high compression portion 315 interposed therebetween, thereby forming low compression portions 316A and 316B that are compressed lower than the high compression portion 315, respectively. (See FIG. 36).
  • the compression ratio is defined by ⁇ (cross-sectional area of the conductor after compression) / (cross-sectional area of the conductor before compression) ⁇ ⁇ 100 (%).
  • Low compression means that the compression rate shows a large value
  • high compression means that the compression rate shows a small value.
  • the corners on the side of the connecting portion side of the core 327 are chamfered to form an inclined surface 327C, and the corners on the side opposite to the connecting portion of the core 327 are also chamfered to form an inclined surface 327D. ing. Thereby, disconnection of the core wire 312 resulting from the level
  • the manufacturing method of the electric wire 310 with a terminal of this embodiment is demonstrated.
  • the entire core 327 is overlaid on the pair of wire barrels 321 and 321 of the terminal 320 and the bottom plate 323 between the pair of wire barrels 321 and 321.
  • the position of the core 327 at this time is set such that the end 327A on the connection portion side is shifted to the right in FIG. 37 with respect to the end 321A on the connection portion side of the wire barrel 321. Thereby, there is a gap between the end portion 327A on the connection portion side of the core 327 and the end portion 321A on the connection portion side of the wire barrel 321 (see FIG. 37).
  • the laser beam is irradiated so that the core 327 does not move with respect to the terminal 320, and pinpoint welding is performed (attachment process).
  • the exposed core wire 312 exposed from the end of the electric wire 311 is placed on the bottom plate 323 of the terminal 320, and the wire barrel 321 is crimped to the core wire 312 using a crimping device (not shown). Accordingly, the pair of wire barrels 321 and 321 and the core 327 are curved and crimped so as to be wound around the core wire 312.
  • the core wire 312 is in a state where the compression rate differs depending on the position of the wire barrel 321. That is, in the region near the end 321A on the connection portion side of the wire barrel 321, the core wire 312 is compressed only by the wire barrel 321, as shown in FIG. Low compression section 316A).
  • the core wire 312 is compressed around the wire barrel 321 and the core 327, and thus is in a high compression state (referred to as a high compression portion 315). ).
  • the core wire 312 is compressed around the wire barrel 321 alone, and thus is in a low compression state (referred to as a low compression portion 316B).
  • the compression rate of the core wire 312 in the high compression portion 315 is preferably 50% or less, and is preferably 35% or less in order to destroy the oxide film on the surface of the core wire 312 and ensure good electrical performance with low electrical resistance. More preferably, it is more preferably 25% or less, and particularly preferably 20% or less.
  • the oxide film of the core wire 312 can be broken. Thereby, the electrical resistance value of the core wire 312 and the terminal 320 can be made small. If the compression rate is 35% or less, the surfaces of the strands 314 constituting the core wire 312 are microscopically adhered to each other, so that the electrical resistance value can be reduced. Furthermore, when the compression rate is 25% or less, the strands 314 adhere macroscopically, so that the electrical resistance value can be further reduced. Furthermore, when the compression ratio is 20% or less, the strands 314 can be reliably adhered to each other, so that the electrical resistance value can be reliably reduced.
  • the compression rate of the core wire 312 in the low compression portions 316A and 316B is preferably larger than 50% in order to prevent the core wire 312 from being cut and to secure a good electric wire 311 (core wire 312) holding force. It is more preferably 90%, and particularly preferably 70 to 80%.
  • the length of the core 327 is set slightly shorter than the length dimension from the tip 321C of one wire barrel 321 to the tip 321C of the other wire barrel 321. , 321 of the tip portions 321C, 321C are firmly crimped and difficult to open. In other words, when the pair of wire barrels 321 and 321 are crimped so as to be wound around the core wire 312, the tip ends 321 ⁇ / b> C and 321 ⁇ / b> C of the pair of wire barrels 321 and 321 are not neatly held and difficult to open. It can be done.
  • the core 327 is arranged in such a manner that the end 327A on the connection part side is arranged at a distance from the end 321A on the connection part side of the wire barrel 321, and the entire part is superimposed on the wire barrel 321. Since it is crimped to the core wire 312 together with the wire barrel 321, low compression portions 316 ⁇ / b> A and 316 ⁇ / b> B are formed on both sides of the high compression portion 315 in the portion where the wire barrel 321 of the core wire 312 is crimped.
  • the core wire 312 is compressed by the wire barrel 321 and the core 327 in the high compression portion 315, so that the oxide film formed on the surface of the core wire 312 is destroyed by the sliding contact between the core wire 312 and the core 327.
  • the new surface of the metal is exposed.
  • the contact resistance between the core wire 312 and the terminal 320 can be reduced by the contact between the new surface and the wire barrel 321.
  • the low compression portions 316A and 316B that are crimped only to the wire barrel 321 are compressed lower than the high compression portion 315.
  • the low compression portion 316B opposite to the connection portion can increase the holding force between the electric wire 311 (core wire 312) and the terminal 320 due to low compression.
  • the low compression portion 316A on the connection portion side is formed at the end portion 321A on the connection portion side of the wire barrel 321, and in the present embodiment, the connection portion side of the wire barrel 321 that is most likely to break the core wire 312 is formed. Since the compressive force is small at the end 321A, disconnection of the core wire 312 is prevented.
  • the terminal-attached electric wire 310 that achieves both good electrical performance and the holding force of the core wire 312 and prevents the core wire 312 from being disconnected.
  • the core 327 is pressure-bonded to the core wire 312 while being mounted on the wire barrel 321 without being attached to the wire barrel 321, there is a concern about the displacement of the core 327, but according to the manufacturing method of the present embodiment. For example, since the core 327 is attached to the wire barrel 321 first, the problem of misalignment hardly occurs.
  • the low compression portion 316A on the connection portion side has a function of preventing the core wire 312 from popping out and the core wire 312 being cut off, while the low compression portion 316B on the opposite side to the connection portion is the electric wire 311 (core wire 312) and the terminal 320. That is, in the present embodiment, the low compression portion 316B on the side opposite to the connection portion requires a larger holding force than the low compression portion 316A on the connection portion side.
  • the distance X from the end 321A on the connection part side of the wire barrel 321 to the end 327A on the connection part side of the core 327 is the end 327B on the opposite side to the connection part of the core 327.
  • the holding force is higher than the low compression part 316A on the connection part side. Can be bigger.
  • the corner portion of the side on the connecting portion side of the core 327 and the corner portion on the side opposite to the connecting portion are both chamfered to form inclined surfaces 327C and 327D.
  • the disconnection of the core wire 312 due to the level difference caused by the child 327 can be prevented.
  • the present invention is not limited to the embodiments described with reference to the above description and drawings.
  • the following embodiments are also included in the technical scope of the present invention.
  • the distance X from the end 321 ⁇ / b> A on the connection portion side of the wire barrel 321 to the end 327 ⁇ / b> A on the connection portion side of the core 327 is the end opposite to the connection portion of the core 327.
  • the core 327 is arranged so that the distance Y is less than or equal to the distance Y from 327B to the end 321B on the side opposite to the connection part of the wire barrel 321, but from the connection part side end of the wire barrel to the connection part side of the core
  • the core may be arranged such that the distance to the end portion is larger than the distance from the end portion on the opposite side to the connecting portion of the core to the end portion on the opposite side to the connecting portion of the wire barrel.
  • the core 327 is shown in which the corner of the side on the connection portion side and the corner of the side opposite to the connection portion are chamfered, but only one of the corners is It may be a chamfered core or a core whose corners are not chamfered.
  • the technology disclosed in this specification includes an electric wire having a core wire covered with an insulating coating, and a terminal crimped to the core wire exposed by peeling of the insulating coating at an end of the electric wire. And the said terminal is crimped
  • the technology disclosed in the present specification is a terminal including: an electric wire formed by covering a core wire with an insulating coating; and a terminal crimped to the core wire exposed by peeling off the insulating coating at an end portion of the electric wire.
  • a pair of wire barrels that are crimped in this way, a connection portion that extends in the length direction from one end of the bottom plate and is connected to a counterpart terminal, and a thickness of the wire barrel that is superimposed on the wire barrel A core whose dimensions are larger than those of the other parts, and the wire barrel, the core, and an end of the connection portion between the end of the wire barrel and the end of the wire barrel.
  • the wire barrel of the core wire is formed in a portion where the region where the core is overlapped is crimped, and the high compression is applied to the portion where only the wire barrel is crimped on both sides of the high compression portion of the core wire. It is a manufacturing method of the electric wire with a terminal which forms the low compression part compressed lower than the part, respectively.
  • the core is arranged such that the end on the side of the connecting portion is spaced from the end on the side of the connecting portion of the wire barrel, and the whole is overlapped with the wire barrel. It is crimped to the core wire together with the wire barrel.
  • the low compression part is each formed in the part by which the wire barrel of a core wire is crimped
  • the core wire in the high compression portion, is compressed by the wire barrel and the core, so that the oxide film formed on the surface of the core wire is destroyed by the sliding contact between the core wire and the core.
  • the new surface is exposed.
  • Contact resistance between the core wire and the terminal can be reduced by contacting the new surface and the wire barrel.
  • the low compression part crimped only to the wire barrel is compressed lower than the high compression part.
  • the low-compression part on the side opposite to the connection part can increase the holding force between the electric wire (core wire) and the terminal due to low compression.
  • the low compression part by the side of a connection part among the two low compression parts will be formed in the edge part by the side of the connection part of a wire barrel. Therefore, in the present invention, since the compressive force is small at the end of the wire barrel where the core wire is most likely to be disconnected, disconnection of the core wire is prevented. As described above, according to the technique disclosed in this specification, it is possible to provide a terminal-attached electric wire that achieves both good electrical performance and core wire holding force and prevents the core wire from being disconnected.
  • the technology disclosed in this specification may have the following configuration.
  • the distance from the end of the wire barrel on the side of the connecting part to the end of the core on the side of the connecting part is from the end of the core opposite to the connecting part on the side of the connecting part of the wire barrel. Or less than the distance to the opposite end.
  • the distance from the connecting part side end of the wire barrel to the connecting part side end of the core is from the end of the core opposite to the connecting part to the connecting part of the wire barrel. You may attach the said core to the said wire barrel so that it may become below the distance to the edge part on the opposite side.
  • the low compression portion on the connection portion side has a function of preventing the core wire from protruding and the core wire from being cut off, while the low compression portion on the side opposite to the connection portion is an electric wire (core wire) and a terminal. It has the function to hold. That is, the low compression part on the opposite side to the connection part requires a larger holding force than the low compression part on the connection part side.
  • the holding force can be increased in the low compression portion on the side opposite to the connection portion, compared to the low compression portion on the connection portion side.
  • Both the corners of the side of the core on the side of the connecting part and the corners of the side opposite to the connecting part may be chamfered. With such a configuration, it is possible to prevent disconnection of the core wire due to the step generated by the core.

Abstract

An electric wire (10) with a terminal attached thereto is provided with: an electric wire (12) having a core wire (11); a crimping member (21) crimped so as to encircle, from the outside thereof, the end of the core wire (11) exposed at the end of the electric wire (12); and a terminal equipped with a wire barrel (16) crimped to the core wire (11) and the crimping member (21) from the outside thereof. Therein, the section of the core wire (11) crimped by the wire barrel (16) in a state of encircling by the crimping member (21) is a high-compression section (24), while the section of the core wire (11) crimped only by the wire barrel (16) is a low-compression section (23) which is less compressed than the high-compression section (24).

Description

端子付き電線Electric wire with terminal
　本発明は、端子付き電線に関する。 The present invention relates to an electric wire with a terminal.
　従来、電線の端部から露出する芯線に、端子に形成されたワイヤーバレルを外側から巻き付けるように圧着することにより、電線と端子とを電気的に接続した端子付き電線が知られている。 Conventionally, a terminal-attached electric wire in which the electric wire and the terminal are electrically connected by crimping the wire barrel formed on the terminal from the outside to the core wire exposed from the end of the electric wire is known.
特開２０１０－６２０９７号公報JP 2010-62097 A
　しかしながら、上記の芯線の表面に酸化被膜が形成されると、芯線と端子との電気抵抗が大きくなることが懸念される。電気抵抗を小さくするためには、芯線に対して高い圧力でワイヤーバレルを巻き付けることにより、芯線の表面の酸化被膜を破壊することが考えられる。この結果、芯線の表面に形成された酸化被膜が破れて芯線の新生面が露出し、新生面と端子とが接触することにより、電気抵抗が小さくなることが期待された。 However, when an oxide film is formed on the surface of the core wire, there is a concern that the electrical resistance between the core wire and the terminal increases. In order to reduce the electrical resistance, it is conceivable to break the oxide film on the surface of the core wire by winding the wire barrel with a high pressure around the core wire. As a result, the oxide film formed on the surface of the core wire was torn and the new surface of the core wire was exposed, and the new surface and the terminal were in contact with each other.
　しかしながら上記の手法によると、芯線の断面積が大きく減少するため、機械的強度、特に衝撃的な荷重に対する引張強度（より具体的には圧着端子が電線を保持する強度）が低下する。 However, according to the above method, since the cross-sectional area of the core wire is greatly reduced, the mechanical strength, in particular, the tensile strength against an impact load (more specifically, the strength at which the crimp terminal holds the electric wire) is lowered.
　本発明は上記のような事情に基づいて完成されたものであって、良好な電気的性能と電線（芯線）の保持力とを両立できる端子付き電線を提供することを目的とする。 The present invention has been completed based on the above circumstances, and an object thereof is to provide a terminal-attached electric wire that can achieve both good electrical performance and electric wire (core wire) holding power.
　本発明は、端子付き電線であって、芯線を有する電線と、前記電線の端部から露出する前記芯線の端部に外側から巻き付けられるように圧着された圧着部材と、前記芯線及び前記圧着部材に外側から圧着されたワイヤーバレルを備えた端子と、を備え、前記芯線のうち前記圧着部材が巻き付けられた状態で前記ワイヤーバレルに圧着された部分は高圧縮部とされ、前記芯線のうち前記ワイヤーバレルのみに圧着された部分は前記高圧縮部よりも低圧縮された低圧縮部とされる。 The present invention relates to a terminal-attached electric wire, an electric wire having a core wire, a crimping member crimped so as to be wound from the outside around the end portion of the core wire exposed from the end portion of the electric wire, the core wire and the crimping member And a terminal provided with a wire barrel crimped from the outside, and a portion of the core wire that is crimped to the wire barrel in a state where the crimping member is wound is a high compression portion, The portion crimped only to the wire barrel is a low compression portion that is compressed lower than the high compression portion.
　本発明によれば、低圧縮部においてワイヤーバレルが芯線を圧着することにより、電線と端子との間の保持力が向上する。 According to the present invention, the holding force between the electric wire and the terminal is improved by the wire barrel pressing the core wire in the low compression portion.
　一方、高圧縮部においては、芯線はワイヤーバレル及び圧着部材によって高圧縮される。これにより、芯線と圧着部材とが摺接し、芯線の表面に形成された酸化被膜が破壊されて、削り取られる。すると、芯線を構成する金属の表面が露出する。この露出した金属表面と、ワイヤーバレルとが接触することにより、芯線と端子との間の電気的抵抗値を小さくすることができる。 On the other hand, in the high compression part, the core wire is highly compressed by the wire barrel and the crimping member. Thereby, a core wire and a crimping | compression-bonding member are slidably contacted, and the oxide film formed on the surface of the core wire is destroyed and scraped off. Then, the surface of the metal constituting the core wire is exposed. By contacting the exposed metal surface and the wire barrel, the electrical resistance value between the core wire and the terminal can be reduced.
　本発明によれば、端子付き電線において、良好な電気的性能と電線（芯線）の保持力とを両立させることができる。 According to the present invention, in an electric wire with a terminal, it is possible to achieve both good electrical performance and holding power of the electric wire (core wire).
図１は本発明の実施形態１－１に係る端子付き電線を示す側面図である。FIG. 1 is a side view showing a terminal-attached electric wire according to Embodiment 1-1 of the present invention. 図２は圧着部材が配された電線に端子を圧着する前の状態を示す斜視図である。FIG. 2 is a perspective view showing a state before a terminal is crimped to an electric wire provided with a crimping member. 図３は圧着部材を示す斜視図である。FIG. 3 is a perspective view showing the crimping member. 図４は芯線に圧着部材を圧着した状態を示す斜視図である。FIG. 4 is a perspective view showing a state where a crimping member is crimped to the core wire. 図５は圧着部材が配された電線に端子を圧着する前の状態を示す側面図である。FIG. 5 is a side view showing a state before the terminal is crimped to the electric wire on which the crimping member is arranged. 図６は図１におけるＶＩ－ＶＩ線断面図である。6 is a cross-sectional view taken along line VI-VI in FIG. 図７は図１におけるＶＩＩ－ＶＩＩ線断面図である。7 is a cross-sectional view taken along line VII-VII in FIG. 図８は本発明の実施形態１－１の変形例に係る圧着部材を示す斜視図である。FIG. 8 is a perspective view showing a crimping member according to a modification of Embodiment 1-1 of the present invention. 図９は本発明の実施形態１－２に係る端子付き電線を示す側面図である。FIG. 9 is a side view showing the terminal-attached electric wire according to the embodiment 1-2 of the present invention. 図１０は圧着部材を示す斜視図である。FIG. 10 is a perspective view showing the crimping member. 図１１は圧着部材を示す側面図である。FIG. 11 is a side view showing the crimping member. 図１２は圧着部材を芯線に圧着する前の状態を示す斜視図である。FIG. 12 is a perspective view showing a state before the crimping member is crimped to the core wire. 図１３は圧着部材が配された電線に端子を圧着する前の状態を示す斜視図である。FIG. 13 is a perspective view showing a state before a terminal is crimped to an electric wire provided with a crimping member. 図１４は本発明の実施形態１－３に係る端子付き電線を示す側面図である。FIG. 14 is a side view showing a terminal-attached electric wire according to Embodiment 1-3 of the present invention. 図１５は圧着部材を示す斜視図である。FIG. 15 is a perspective view showing the crimping member. 図１６は圧着部材を示す側面図である。FIG. 16 is a side view showing the crimping member. 図１７は圧着部材を示す平面図である。FIG. 17 is a plan view showing the crimping member. 図１８は圧着部材を示す正面図である。FIG. 18 is a front view showing the crimping member. 図１９は圧着部材が配された電線に端子を圧着する前の状態を示す斜視図である。FIG. 19 is a perspective view showing a state before a terminal is crimped to an electric wire provided with a crimping member. 図２０は圧着部材が配された電線に端子を圧着する前の状態を示す平面図である。FIG. 20 is a plan view showing a state before a terminal is crimped to an electric wire provided with a crimping member. 図２１は圧着部材が配された電線に端子を圧着する前の状態を示す側面図である。FIG. 21 is a side view showing a state before a terminal is crimped to an electric wire provided with a crimping member. 図２２は実施形態２－１の端子付き電線の側面図である。FIG. 22 is a side view of the electric wire with terminal of the embodiment 2-1. 図２３は圧着部材を取り付けた電線を端子に配置する様子を示す側面図である。FIG. 23 is a side view showing a state in which the electric wire attached with the crimping member is arranged on the terminal. 図２４は圧着部材を取り付けた電線を端子に配置した様子を示す斜視図である。FIG. 24 is a perspective view showing a state in which an electric wire attached with a crimping member is arranged on a terminal. 図２５は圧着部材を取り付けた電線を示す正面図である。FIG. 25 is a front view showing an electric wire to which a crimping member is attached. 図２６は圧着部材の斜視図である。FIG. 26 is a perspective view of the crimping member. 図２７は実施形態２－２の端子付き電線の製造方法において、押さえ部材取付工程を経た後の電線を示す側面図である。FIG. 27 is a side view showing the electric wire after undergoing a pressing member attaching step in the method of manufacturing the electric wire with terminal of the embodiment 2-2. 図２８は図２７に示す状態における電線の正面図である。FIG. 28 is a front view of the electric wire in the state shown in FIG. 図２９は実施形態２－３の端子付き電線の側面図である。FIG. 29 is a side view of the electric wire with terminal according to the embodiment 2-3. 図３０は圧着部材を取り付けた電線の側面図である。FIG. 30 is a side view of the electric wire to which the crimping member is attached. 図３１は圧着部材を取り付けた電線の斜視図である。FIG. 31 is a perspective view of an electric wire to which a crimping member is attached. 図３２は圧着部材を取り付けた電線の正面図である。FIG. 32 is a front view of the electric wire to which the crimping member is attached. 図３３は実施形態３－１の端子付き電線の斜視図である。FIG. 33 is a perspective view of a terminal-attached electric wire according to Embodiment 3-1. 図３４は長手方向における端子付き電線の一部断面図である。FIG. 34 is a partial cross-sectional view of the electric wire with terminal in the longitudinal direction. 図３５は図３４のＡ－Ａ線における断面図である。FIG. 35 is a cross-sectional view taken along line AA in FIG. 図３６は図３４のＢ－Ｂ線における断面図である。36 is a cross-sectional view taken along line BB in FIG. 図３７は端子付き電線の製造方法を説明する斜視図である。FIG. 37 is a perspective view for explaining a method of manufacturing a terminal-attached electric wire.
　１０，３０，４０...端子付き電線
　１１...芯線
　１２...電線
　１３...端子
　１４...素線
　１６...ワイヤーバレル
　２１，３１，４１...圧着部材
　２２，３３，４４...突出部
　２３...低圧縮部
　２４...高圧縮部
　３２，４３...芯線当接部
　４２...ワイヤーバレル当接部
　２１０，２３０...端子付き電線
　２１１...電線
　２１２...芯線（露出芯線）
　２１３...絶縁被覆
　２１４...素線
　２１５，２３５...高圧縮部
　２１６，２３６...低圧縮部
　２２０...端子
　２２１...ワイヤーバレル
　２２２...インシュレーションバレル
　２２４...接続部
　２２７，２３７...　圧着部材
　２２８...第１圧着片（圧着部材）
　２２９...第２圧着片（押さえ部材）
　２３８...圧着片（圧着部材）
　２３９...押さえ片（押さえ部材）
　３１０...端子付き電線
　３１１...電線
　３１２...芯線（露出芯線）
　３１３...絶縁被覆
　３１４...素線
　３１５...高圧縮部
　３１６Ａ...低圧縮部（接続部側の低圧縮部）
　３１６Ｂ...低圧縮部（接続部とは反対側の低圧縮部）
　３２０...端子
　３２１...ワイヤーバレル（バレル）
　３２１Ａ...接続部側の端部
　３２１Ｂ...接続部とは反対側の端部
　３２２...インシュレーションバレル
　３２３...底板
　３２３Ａ...一端部
　３２４...接続部
　３２７...中子
　３２７Ａ...接続部側の端部
　３２７Ｂ...接続部とは反対側の端部
　３２７Ｃ，３２７Ｄ...傾斜面（面取り形状）
　Ｘ...ワイヤーバレルの接続部側の端部から中子の接続部側の端部までの距離
　Ｙ...中子の接続部とは反対側の端部からワイヤーバレルの接続部とは反対側の端部までの距離 10, 30, 40 ... Electric wire with terminal 11 ... Core wire 12 ... Electric wire 13 ... Terminal 14 ... Elementary wire 16 ... Wire barrel 21, 31, 41 ... Crimp member 22, 33, 44 ... Projection part 23 ... Low compression part 24 ... High compression part 32, 43 ... Core wire contact part 42 ... Wire barrel contact part 210, 230 ... Electric wire with terminal 211 ... Electric wire 212 ... Core wire (exposed core wire)
213 ... Insulation coating 214 ... Wire 215, 235 ... High compression part 216, 236 ... Low compression part 220 ... Terminal 221 ... Wire barrel 222 ... Insulation barrel 224. .. Connection part 227, 237 ... Crimp member 228 ... First crimp piece (crimp member)
229 ... Second crimping piece (pressing member)
238 ... Crimp piece (crimp member)
239 ... Holding piece (holding member)
310 ... Electric wire with terminal 311 ... Electric wire 312 ... Core wire (exposed core wire)
313 ... Insulation coating 314 ... Wire 315 ... High compression part 316A ... Low compression part (low compression part on the connection side)
316B ... Low compression part (low compression part opposite to the connection part)
320 ... terminal 321 ... wire barrel (barrel)
321A ... End on the connection side 321B ... End on the opposite side of the connection 322 ... Insulation barrel 323 ... Bottom plate 323A ... One end 324 ... Connection 327 .. .Core 327A ... End on the connection side 327B ... End on the opposite side of the connection 327C, 327D ... Inclined surface (chamfered shape)
X: Distance from the end of the wire barrel connecting part to the end of the connecting part of the core Y ... What is the connecting part of the wire barrel from the end opposite to the connecting part of the core Distance to opposite end
　＜実施形態１－１＞
　本発明の実施形態１－１を、図１ないし図８を参照して説明する。本実施形態の端子付き電線１０は、図１に示すように、芯線１１を含む電線１２と、この電線１２の端部から露出する芯線１１に圧着された端子１３とを備える。本実施形態に係る端子１３は、いわゆるＬＡ端子とされる。 <Embodiment 1-1>
Embodiment 1-1 of the present invention will be described with reference to FIGS. As shown in FIG. 1, the terminal-attached electric wire 10 of the present embodiment includes an electric wire 12 including a core wire 11 and a terminal 13 that is crimped to the core wire 11 exposed from the end of the electric wire 12. The terminal 13 according to the present embodiment is a so-called LA terminal.
（電線１２）
　電線１２は、複数の金属製の素線１４を撚り合わせてなる芯線１１と、芯線１１の外周を覆う合成樹脂製の絶縁被覆１５とを備える。芯線１１は、アルミニウム、アルミニウム合金、銅、銅合金等、必要に応じて任意の金属を用いることができる。本実施形態においては、アルミニウム又はアルミニウム合金が用いられている。 (Wire 12)
The electric wire 12 includes a core wire 11 formed by twisting a plurality of metal wires 14 and an insulating coating 15 made of a synthetic resin that covers the outer periphery of the core wire 11. The core wire 11 can use arbitrary metals as needed, such as aluminum, an aluminum alloy, copper, a copper alloy. In this embodiment, aluminum or an aluminum alloy is used.
（端子１３）
　端子１３は、一般に用いられる形状のものであり、金属板材を所定形状にプレス加工することにより形成されている。金属板材は銅、銅合金、アルミニウム、アルミニウム合金、鉄、鉄合金等、必要に応じて任意の金属を用いることができる。本実施形態では銅又は銅合金が用いられる。また、金属板材にはスズ、ニッケル等任意の金属によるメッキが施されていてもよい。本実施形態ではスズメッキが施されている。 (Terminal 13)
The terminal 13 has a generally used shape, and is formed by pressing a metal plate material into a predetermined shape. As the metal plate material, any metal such as copper, copper alloy, aluminum, aluminum alloy, iron, iron alloy or the like can be used as necessary. In this embodiment, copper or a copper alloy is used. Further, the metal plate material may be plated with an arbitrary metal such as tin or nickel. In this embodiment, tin plating is applied.
　図２に示すように、端子１３は、電線１２の端部側で露出された芯線１１の外周に巻き付くようにして圧着されるワイヤーバレル１６と、ワイヤーバレル１６に連なって形成されて、絶縁被覆１５の外周に巻き付くように圧着されるインシュレーションバレル１７と、ワイヤーバレル１６からインシュレーションバレル１７と反対側に延出されて、図示しない相手側部材と接続される接続部１８と、を備える。 As shown in FIG. 2, the terminal 13 is formed by being connected to the wire barrel 16, which is crimped so as to be wound around the outer periphery of the core wire 11 exposed on the end side of the electric wire 12, and insulated. An insulation barrel 17 that is crimped so as to be wound around the outer periphery of the coating 15, and a connection portion 18 that extends from the wire barrel 16 to the opposite side of the insulation barrel 17 and is connected to a mating member (not shown). Prepare.
　接続部１８は板状をなしており、図示しないボルトが挿通される挿通孔１９が貫通されている。
　また、ワイヤーバレル１６には、芯線１１が載置される側の面に、電線１２の軸方向と直交する方向に延びる複数の凹部２０が、電線１２の軸方向に間隔を空けて並んで形成されている。 The connecting portion 18 has a plate shape, and has an insertion hole 19 through which a bolt (not shown) is inserted.
In addition, a plurality of recesses 20 extending in a direction orthogonal to the axial direction of the electric wire 12 are formed on the surface of the wire barrel 16 on the side where the core wire 11 is placed, arranged side by side in the axial direction of the electric wire 12. Has been.
（圧着部材２１）
　本実施形態においては、このような従来型の端子１３に、圧着部材２１が組み合わされている。圧着部材２１は、図３に示すように、細長い金属板からなる。圧着部材２１は金属板材を所定の形状にプレス加工してなる。圧着部材２１を構成する金属は、端子１３を構成する金属と同じであってもよく、また、異なっていてもよい。本実施形態では圧着部材２１は銅又は銅合金からなり、端子１３と同じ金属からなる。 (Crimp member 21)
In the present embodiment, such a conventional terminal 13 is combined with a crimping member 21. As shown in FIG. 3, the crimping member 21 is made of an elongated metal plate. The crimping member 21 is formed by pressing a metal plate material into a predetermined shape. The metal constituting the crimping member 21 may be the same as the metal constituting the terminal 13 or may be different. In the present embodiment, the crimping member 21 is made of copper or a copper alloy, and is made of the same metal as the terminal 13.
　圧着部材２１の厚さ寸法は、端子１３の厚さ寸法と同じであってもよく、また、異なっていてもよい。異なっている場合には、圧着部材２１の厚さ寸法は、端子１３よりも厚くてもよく、また、薄くてもよい。 The thickness dimension of the crimping member 21 may be the same as the thickness dimension of the terminal 13 or may be different. If they are different, the thickness dimension of the crimping member 21 may be thicker than that of the terminal 13 or may be thinner.
（圧着構造）
　図４に示すように、圧着部材２１は、芯線１１の外周に巻き付けられるように圧着されている。本実施形態では、圧着部材２１の長さ寸法は、芯線１１の外周を包囲することができる長さに設定されている。 (Crimp structure)
As shown in FIG. 4, the crimping member 21 is crimped so as to be wound around the outer periphery of the core wire 11. In the present embodiment, the length dimension of the crimping member 21 is set to a length that can surround the outer periphery of the core wire 11.
　図５に示すように、電線１２は、矢線Ａで示す方向から、端子１３の上に載置される。詳細には、電線１２の絶縁被覆１５はインシュレーションバレル１７の上に載置され、芯線１１及び芯線１１に圧着された圧着部材２１はワイヤーバレル１６の上に載置される。圧着部材２１の一部は、ワイヤーバレル１６の側縁から電線１２の軸線方向について前方に突出するように配される。 As shown in FIG. 5, the electric wire 12 is placed on the terminal 13 from the direction indicated by the arrow A. Specifically, the insulation coating 15 of the electric wire 12 is placed on the insulation barrel 17, and the core wire 11 and the crimping member 21 crimped to the core wire 11 are placed on the wire barrel 16. A part of the crimping member 21 is arranged so as to protrude forward from the side edge of the wire barrel 16 in the axial direction of the electric wire 12.
　図１には、インシュレーションバレル１７及びワイヤーバレル１６が電線１２に圧着された状態が示されている。上述したように、インシュレーションバレル１７は、絶縁被覆１５の外周に巻き付くように圧着されている。 FIG. 1 shows a state where the insulation barrel 17 and the wire barrel 16 are crimped to the electric wire 12. As described above, the insulation barrel 17 is pressure-bonded so as to be wound around the outer periphery of the insulating coating 15.
　ワイヤーバレル１６は、芯線１１の外周と、芯線１１に圧着された圧着部材２１の外周とに、巻き付くようにして圧着されている。圧着部材２１のうち、ワイヤーバレル１６の端縁から突出した部分は、突出部２２とされる。更に、突出部２２の先端からは、芯線１１が僅かに突出している。 The wire barrel 16 is crimped so as to be wound around the outer periphery of the core wire 11 and the outer periphery of the crimping member 21 crimped to the core wire 11. A portion of the crimping member 21 that protrudes from the edge of the wire barrel 16 is a protruding portion 22. Furthermore, the core wire 11 slightly protrudes from the tip of the protrusion 22.
　図６に示すように、芯線１１のうちワイヤーバレル１６のみによって圧着された領域は、比較的に低圧縮された低圧縮部２３とされる。ここで、圧縮率は、｛（圧縮後の導体の断面積）／（圧縮前の導体の断面積）｝×１００（％）で定義される。低圧縮とは、圧縮率が大きい値を示すことを意味し、高圧縮とは、圧縮率が小さい値を示すことを意味する。 As shown in FIG. 6, a region of the core wire 11 that is crimped only by the wire barrel 16 is a low-compression portion 23 that is relatively low-compressed. Here, the compression rate is defined as {(cross-sectional area of the conductor after compression) / (cross-sectional area of the conductor before compression)} × 100 (%). Low compression means that the compression rate shows a large value, and high compression means that the compression rate shows a small value.
　また、図７に示すように、芯線１１のうち、ワイヤーバレル１６と、圧着部材２１とによって圧着された領域は、低圧縮部２３に比べて、圧着部材２１の厚さ寸法だけ高圧縮された高圧縮部２４とされる。 Further, as shown in FIG. 7, in the core wire 11, the region crimped by the wire barrel 16 and the crimping member 21 is highly compressed by the thickness dimension of the crimping member 21 compared to the low compression portion 23. The high compression unit 24 is used.
（本実施形態の作用、効果）
　続いて、本実施形態の作用、効果について説明する。本実施形態によれば、低圧縮部２３においてワイヤーバレル１６が芯線１１を圧着することにより、電線１２と端子１３との間の保持力が向上する。 (Operation and effect of this embodiment)
Then, the effect | action and effect of this embodiment are demonstrated. According to this embodiment, the holding force between the electric wire 12 and the terminal 13 is improved by the wire barrel 16 crimping the core wire 11 in the low compression portion 23.
　低圧縮部２３における圧縮率は、５０％よりも大きいことが好ましく、６０～９０％であることがより好ましく、７０～８０％とすることが特に好ましい。 The compression rate in the low compression part 23 is preferably larger than 50%, more preferably 60 to 90%, and particularly preferably 70 to 80%.
　一方、高圧縮部２４においては、芯線１１はワイヤーバレル１６及び圧着部材２１によって高圧縮される。これにより、芯線１１と圧着部材２１とが摺接し、芯線１１の表面に形成された酸化被膜が破壊されて、削り取られる。すると、芯線１１を構成する金属の表面が露出する。この露出した金属表面と、ワイヤーバレル１６とが接触することにより、芯線１１と端子１３との間の電気的抵抗値を小さくすることができる。 On the other hand, in the high compression portion 24, the core wire 11 is highly compressed by the wire barrel 16 and the crimping member 21. Thereby, the core wire 11 and the crimping | compression-bonding member 21 are slidably contacted, and the oxide film formed on the surface of the core wire 11 is destroyed and scraped off. Then, the surface of the metal constituting the core wire 11 is exposed. When the exposed metal surface and the wire barrel 16 are in contact with each other, the electrical resistance value between the core wire 11 and the terminal 13 can be reduced.
　また、高圧縮部２４と低圧縮部２３との間の領域においては、芯線１１を構成する素線１４同士が強くこすれ合う。この結果、素線１４の表面に形成された酸化被膜が破壊されて、素線１４を構成する金属表面が露出する。この金属表面同士が接触することにより、素線１４同士の電気的抵抗値を小さくすることができる。これにより、芯線１１の中心付近に位置する素線１４についても、端子１３との電気的な接続に寄与させることができる。この結果、芯線１１と端子１３との間の電気的抵抗値を一層小さくすることができる。 Further, in the region between the high compression portion 24 and the low compression portion 23, the strands 14 constituting the core wire 11 are rubbed strongly. As a result, the oxide film formed on the surface of the strand 14 is destroyed, and the metal surface constituting the strand 14 is exposed. When the metal surfaces come into contact with each other, the electrical resistance value between the strands 14 can be reduced. Thereby, the wire 14 located near the center of the core wire 11 can also contribute to the electrical connection with the terminal 13. As a result, the electrical resistance value between the core wire 11 and the terminal 13 can be further reduced.
　このように、本実施形態によれば、低圧縮部２３においては電線１２と端子１３との機械的な保持力を向上させることが可能であり、更に、低圧縮部２３においては、電線１２と端子１３との間の電気的抵抗値を小さくすると共に、素線１４同士の間の電気的抵抗値も小さくすることができる。 Thus, according to the present embodiment, it is possible to improve the mechanical holding force between the electric wire 12 and the terminal 13 in the low compression portion 23, and further, in the low compression portion 23, While reducing the electrical resistance value between the terminals 13, the electrical resistance value between the strands 14 can also be reduced.
　高圧縮部２４における芯線１１の圧縮率は、芯線１１の表面の酸化皮膜を破壊して電気抵抗が小さく良好な電気的性能を確保するために５０％以下とすることが好ましく、３５％以下とすることがより好ましく、２５％以下とすることが更に好ましく、２０％以下とすることが特に好ましい。 The compressibility of the core wire 11 in the high compression portion 24 is preferably 50% or less, and is preferably 35% or less in order to destroy the oxide film on the surface of the core wire 11 to ensure a small electrical resistance and good electrical performance. More preferably, it is more preferably 25% or less, and particularly preferably 20% or less.
　圧縮率を５０％以下とすることで芯線１１の酸化被膜を破壊することができる。これにより、芯線１１と端子１３との電気抵抗値を小さくすることができる。また、圧縮率を３５％以下とすると、芯線１１を構成する素線１４の表面同士が微視的に凝着するので電気的抵抗値を小さくすることができる。更に、圧縮率を２５％以下とすると、素線１４同士が巨視的に凝着するので、電気的抵抗値を更に小さくすることができる。更に、圧縮率を２０％以下にすると、素線１４同士を確実に凝着させることができるので、電気的抵抗値を確実に小さくすることができる。 When the compression ratio is 50% or less, the oxide film of the core wire 11 can be broken. Thereby, the electrical resistance value of the core wire 11 and the terminal 13 can be made small. If the compression rate is 35% or less, the surfaces of the strands 14 constituting the core wire 11 are microscopically adhered to each other, so that the electrical resistance value can be reduced. Furthermore, when the compression rate is 25% or less, the wires 14 adhere macroscopically, so that the electrical resistance value can be further reduced. Furthermore, when the compression ratio is 20% or less, the strands 14 can be reliably adhered to each other, so that the electrical resistance value can be reliably reduced.
　また、本実施形態によれば、ワイヤーバレル１６の端縁から突出する芯線１１は、圧着部材２１の突出部２２によって圧着された状態になっている。これにより、ワイヤーバレル１６に加えられた圧力によって、ワイヤーバレル１６の端縁から芯線１１が膨出することを抑制することができる。この結果、芯線１１が、端子１３以外の部材に接触して短絡することを抑制することができる。高圧縮部２４において芯線１１が高圧縮される場合には、芯線１１がワイヤーバレル１６から膨出しやすくなるため、特に有効である。 Further, according to the present embodiment, the core wire 11 protruding from the end edge of the wire barrel 16 is in a state of being crimped by the projecting portion 22 of the crimping member 21. Thereby, it can suppress that the core wire 11 bulges from the edge of the wire barrel 16 by the pressure added to the wire barrel 16. As a result, it can suppress that the core wire 11 contacts and short-circuits members other than the terminal 13. When the core wire 11 is highly compressed in the high compression portion 24, the core wire 11 is easily swelled from the wire barrel 16, which is particularly effective.
　また、本実施形態によれば、従来の端子１３をそのまま使用しながら、圧着部材２１を芯線１１に圧着するという簡単な工程を追加するだけで、良好な導電性の確保と電線１２（芯線１１）保持力の確保を両立することが可能となる。 In addition, according to the present embodiment, the use of the conventional terminal 13 as it is and the addition of a simple process of crimping the crimping member 21 to the core wire 11 makes it possible to ensure good electrical conductivity and the electric wire 12 (core wire 11). ) It is possible to achieve both securing of holding power.
（実施形態１－１の変形例）
　圧着部材２１には、芯線１１と接触する面に、凹部２５を形成してもよい。凹部２５は、図８に示すように、圧着部材２１の長さ方向に延びる溝状に形成してもよい。また、詳細には図示しないが、複数の凹部２５は、圧着部材２１のうち芯線１１と接触する面に、離散的に配する構成としてもよい。 (Modification of Embodiment 1-1)
A concave portion 25 may be formed on the surface of the crimping member 21 that contacts the core wire 11. As shown in FIG. 8, the recess 25 may be formed in a groove shape extending in the length direction of the crimping member 21. Although not shown in detail, the plurality of recesses 25 may be arranged discretely on the surface of the crimping member 21 that contacts the core wire 11.
　＜実施形態１－２＞
　次に、本発明の実施形態１－２を、図９ないし図１３を参照しつつ説明する。図９に示すように、本実施形態に係る端子付き電線３０に備えられた圧着部材３１は、芯線１１の端縁に当接する芯線当接部３２を備える。 <Embodiment 1-2>
Next, Embodiment 1-2 of the present invention will be described with reference to FIGS. As shown in FIG. 9, the crimping member 31 provided in the terminal-attached electric wire 30 according to the present embodiment includes a core wire contact portion 32 that contacts the edge of the core wire 11.
　図１０及び図１１に示すように、細長い板状をなす圧着部材３１の長さ方向の略中央付近には、電線１２の軸線方向に延出されると共に、電線１２の軸線方向に直交する方向であって且つ芯線１１側に折り曲げられた芯線当接部３２が形成されている。芯線当接部３２は、芯線１１の外周に圧着部材３１が圧着された状態で、芯線１１の端縁に当接するようになっている。 As shown in FIGS. 10 and 11, the crimping member 31 having a long and narrow plate shape extends in the axial direction of the electric wire 12 in the direction perpendicular to the axial direction of the electric wire 12 in the vicinity of the center in the length direction. In addition, a core wire contact portion 32 that is bent toward the core wire 11 is formed. The core wire contact portion 32 is configured to contact the edge of the core wire 11 in a state where the crimp member 31 is crimped to the outer periphery of the core wire 11.
　図１２及び図１３に示すように、芯線当接部３２を芯線１１の端縁に当接した状態で、芯線１１の外周に圧着部材３１が配されて、圧着部材３１が芯線１１に圧着されるようになっている。 As shown in FIGS. 12 and 13, with the core wire contact portion 32 in contact with the edge of the core wire 11, a crimping member 31 is disposed on the outer periphery of the core wire 11, and the crimping member 31 is crimped to the core wire 11. It has become so.
　芯線１１に圧着部材３１が圧着された電線１２は、端子１３と接続される。詳細には、電線１２の絶縁被覆１５がインシュレーションバレル１７の上に載置されると共に、電線１２の芯線１１及び圧着部材３１がワイヤーバレル１６の上に載置される。その後に、インシュレーションバレル１７が絶縁被覆１５の外周にかしめ付けられると共に、ワイヤーバレル１６が芯線１１及び圧着部材３１の外周にかしめ付けられるようになっている。 The electric wire 12 in which the crimping member 31 is crimped to the core wire 11 is connected to the terminal 13. Specifically, the insulation coating 15 of the electric wire 12 is placed on the insulation barrel 17, and the core wire 11 and the crimping member 31 of the electric wire 12 are placed on the wire barrel 16. Thereafter, the insulation barrel 17 is caulked to the outer periphery of the insulating coating 15, and the wire barrel 16 is caulked to the outer periphery of the core wire 11 and the crimping member 31.
　図９に示すように、芯線当接部３２は、ワイヤーバレル１６の先端から突出する突出部３３から更に突出した状態で、端子１３に配されている。 As shown in FIG. 9, the core wire contact portion 32 is arranged on the terminal 13 in a state of further protruding from the protruding portion 33 protruding from the tip of the wire barrel 16.
　上記以外の構成については、実施形態１－１と略同様なので、同一部材については同一符号を付し、重複する説明を省略する。 Since the configuration other than the above is substantially the same as that of Embodiment 1-1, the same members are denoted by the same reference numerals, and redundant description is omitted.
　本実施形態によれば、圧着部材３１には芯線１１の端部に当接する芯線当接部３２が設けられているので、芯線１１に対して圧着部材３１を組み付ける際に、芯線当接部３２を芯線１１の端縁に当接させることにより、芯線１１と圧着部材３１との位置決めを容易に行うことができる。これにより、絶縁被覆１５の皮剥ぎ作業を行う際に、絶縁被覆１５を余計に皮剥ぎする必要がなくなる。 According to the present embodiment, the crimping member 31 is provided with the core wire abutting portion 32 that abuts on the end portion of the core wire 11, and therefore, when the crimping member 31 is assembled to the core wire 11, the core wire abutting portion 32. By abutting against the edge of the core wire 11, the core wire 11 and the crimping member 31 can be easily positioned. This eliminates the need to peel off the insulation coating 15 when the insulation coating 15 is peeled off.
　また、芯線１１の端縁には芯線当接部３２が当接しているので、芯線１１の端縁から芯線１１を構成する素線１４がはみ出してくることが抑制されるようになっている。これにより、芯線１１に圧着部材３１を圧着した後に、芯線１１の先端を揃える作業を省略することができる。 Further, since the core wire contact portion 32 is in contact with the edge of the core wire 11, it is possible to suppress the strand 14 constituting the core wire 11 from protruding from the edge of the core wire 11. Thereby, after crimping | bonding the crimping | compression-bonding member 31 to the core wire 11, the operation | work which aligns the front-end | tip of the core wire 11 is omissible.
　＜実施形態１－３＞
　次に、本発明の実施形態１－３を、図１４ないし図２１を参照しつつ説明する。図１４に示すように、本実施形態に係る端子付き電線４０に備えられた圧着部材４１は、ワイヤーバレル１６の側縁に当接するワイヤーバレル当接部４２を備える。 <Embodiment 1-3>
Next, Embodiment 1-3 of the present invention will be described with reference to FIGS. As shown in FIG. 14, the crimping member 41 provided in the terminal-attached electric wire 40 according to the present embodiment includes a wire barrel contact portion 42 that contacts the side edge of the wire barrel 16.
　図１５ないし図１８に示すように、細長く延びた板状の圧着部材４１には、長手方向の中央付近から延出されると共に芯線１１側に曲げられてなる芯線当接部４３が形成されている。芯線当接部４３は、芯線１１に圧着部材４１が圧着された状態で芯線１１の端縁に当接するようになっている。 As shown in FIGS. 15 to 18, an elongated plate-like crimping member 41 is formed with a core wire contact portion 43 that extends from the vicinity of the center in the longitudinal direction and is bent toward the core wire 11. . The core wire abutting portion 43 abuts on the edge of the core wire 11 in a state where the crimp member 41 is crimped to the core wire 11.
　芯線当接部４３の側縁には、圧着部材４１に向かって延びる一対のワイヤーバレル当接部４２が形成されている。図１７及び図１８に示すように、ワイヤーバレル当接部４２は、圧着部材４１よりも外側の位置に配されるようになっている。 A pair of wire barrel contact portions 42 extending toward the crimping member 41 are formed on the side edges of the core wire contact portion 43. As shown in FIGS. 17 and 18, the wire barrel abutting portion 42 is arranged at a position outside the crimping member 41.
　図１９ないし図２１に示すように、圧着部材４１は、芯線１１の端縁に芯線当接部４３が当接した状態で、芯線１１の外周に圧着されている。 As shown in FIGS. 19 to 21, the crimping member 41 is crimped to the outer periphery of the core wire 11 with the core wire abutting portion 43 in contact with the end edge of the core wire 11.
　芯線１１に圧着部材４１が圧着された電線１２は、端子１３と接続される。詳細には、電線１２の絶縁被覆１５がインシュレーションバレル１７の上に載置されると共に、電線１２の芯線１１及び圧着部材４１がワイヤーバレル１６の上に載置される。その後に、インシュレーションバレル１７が絶縁被覆１５の外周にかしめ付けられると共に、ワイヤーバレル１６が芯線１１及び圧着部材４１の外周にかしめ付けられるようになっている。 The electric wire 12 in which the crimping member 41 is crimped to the core wire 11 is connected to the terminal 13. Specifically, the insulating coating 15 of the electric wire 12 is placed on the insulation barrel 17, and the core wire 11 and the crimping member 41 of the electric wire 12 are placed on the wire barrel 16. Thereafter, the insulation barrel 17 is caulked to the outer periphery of the insulating coating 15, and the wire barrel 16 is caulked to the outer periphery of the core wire 11 and the crimping member 41.
　図２０及び図２１に示すように、ワイヤーバレル当接部４２の先端は、ワイヤーバレル１６の側縁に当接するようになっている。 20 and 21, the tip of the wire barrel abutting portion 42 abuts on the side edge of the wire barrel 16.
　図１４に示すように、芯線当接部４３から圧着部材４１側に向かって延出されたワイヤーバレル当接部４２の長さ寸法により、圧着部材４１とワイヤーバレル１６とが重なる長さ寸法が設定されるようになっている。すなわち、まず、ワイヤーバレル当接部４２の先端がワイヤーバレル１６の側縁と当接することにより、ワイヤーバレル１６の側縁に対する、圧着部材４１の相対的な位置が定まる。この結果、圧着部材４１がワイヤーバレル１６と重なる長さ寸法が定まるのである。これにより、ワイヤーバレル１６と圧着部材４１とによって芯線１１が圧着されている高圧縮部２４の長さ寸法を確実に定めることができるようになっている。 As shown in FIG. 14, the length dimension of the wire barrel abutting portion 42 extending from the core wire abutting portion 43 toward the crimping member 41 side has a length dimension in which the crimping member 41 and the wire barrel 16 overlap. It is set up. That is, first, when the tip of the wire barrel contact portion 42 contacts the side edge of the wire barrel 16, the relative position of the crimping member 41 with respect to the side edge of the wire barrel 16 is determined. As a result, the length dimension in which the crimping member 41 overlaps the wire barrel 16 is determined. Thereby, the length dimension of the high compression part 24 by which the core wire 11 is crimped | bonded by the wire barrel 16 and the crimping | compression-bonding member 41 can be determined reliably.
　また、圧着部材４１は、ワイヤーバレル１６の端縁から突出する突出部４４を備える。 The crimping member 41 includes a protruding portion 44 that protrudes from the end edge of the wire barrel 16.
　上記以外の構成については、実施形態１－１と略同様なので、同一部材については同一符号を付し、重複する説明を省略する。 Since the configuration other than the above is substantially the same as that of Embodiment 1-1, the same members are denoted by the same reference numerals, and redundant description is omitted.
　本実施形態によれば、ワイヤーバレル当接部４２がワイヤーバレル１６の側縁と当接することにより、ワイヤーバレル１６と圧着部材４１との相対的な位置を定めることができる。これにより、高圧縮部２４の長さ寸法を確実に定めることができる。 According to this embodiment, the wire barrel contact portion 42 contacts the side edge of the wire barrel 16, whereby the relative position between the wire barrel 16 and the crimping member 41 can be determined. Thereby, the length dimension of the high compression part 24 can be defined reliably.
　＜他の実施形態＞
　本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
　（１）圧着部材は芯線１１に熱圧着されていてもよい。
　（２）本実施形態では、芯線１１は複数の素線１４を撚り合せてなる撚り線としたが、これに限られず、金属棒材からなる単芯線でもよい。
　（３）本実施形態においては、端子はＬＡ端子としたが、これに限られず、雄端子、雌端子等、必要に応じて任意の形状の端子とすることができる。
　（４）圧着部材は、貫通した筒状をなしていてもよく、また、有底の筒状をなしていてもよい。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) The crimping member may be thermocompression bonded to the core wire 11.
(2) In the present embodiment, the core wire 11 is a stranded wire formed by twisting a plurality of strands 14, but is not limited thereto, and may be a single core wire made of a metal bar.
(3) In the present embodiment, the terminal is an LA terminal. However, the terminal is not limited to this, and a terminal having an arbitrary shape such as a male terminal or a female terminal can be used.
(4) The crimping member may have a penetrating cylindrical shape or a bottomed cylindrical shape.
（課題を解決するための手段）
　本明細書に開示された技術は、端子付き電線であって、芯線を有する電線と、前記電線の端部から露出する前記芯線の端部に外側から巻き付けられるように圧着された圧着部材と、前記芯線及び前記圧着部材に外側から圧着されたワイヤーバレルを備えた端子と、を備え、前記芯線のうち前記圧着部材が巻き付けられた状態で前記ワイヤーバレルに圧着された部分は高圧縮部とされ、前記芯線のうち前記ワイヤーバレルのみに圧着された部分は前記高圧縮部よりも低圧縮された低圧縮部とされる。 (Means for solving the problem)
The technology disclosed in the present specification is an electric wire with a terminal, an electric wire having a core wire, and a crimping member that is crimped so as to be wound from the outside around the end portion of the core wire exposed from the end portion of the electric wire, A terminal having a wire barrel crimped to the core wire and the crimp member from outside, and a portion of the core wire that is crimped to the wire barrel in a state where the crimp member is wound is a high compression portion. The portion of the core wire that is crimped only to the wire barrel is a low compression portion that is compressed lower than the high compression portion.
　本明細書に開示された技術によれば、低圧縮部においてワイヤーバレルが芯線を圧着することにより、電線と端子との間の保持力が向上する。
　一方、高圧縮部においては、芯線はワイヤーバレル及び圧着部材によって高圧縮される。これにより、芯線と圧着部材とが摺接し、芯線の表面に形成された酸化被膜が破壊されて、削り取られる。すると、芯線を構成する金属の表面が露出する。この露出した金属表面と、ワイヤーバレルとが接触することにより、芯線と端子との間の電気的抵抗値を小さくすることができる。 According to the technique disclosed in the present specification, the holding force between the electric wire and the terminal is improved by the wire barrel pressing the core wire in the low compression portion.
On the other hand, in the high compression part, the core wire is highly compressed by the wire barrel and the crimping member. Thereby, a core wire and a crimping | compression-bonding member are slidably contacted, and the oxide film formed on the surface of the core wire is destroyed and scraped off. Then, the surface of the metal constituting the core wire is exposed. By contacting the exposed metal surface and the wire barrel, the electrical resistance value between the core wire and the terminal can be reduced.
　本明細書に開示された技術の実施態様としては以下の態様が好ましい。
　前記圧着部材は前記ワイヤーバレルの端縁から突出する突出部を有することが好ましい。
　上記の態様によれば、ワイヤーバレルの端縁から突出する芯線は、圧着部材の突出部によって圧着された状態になっている。これにより、ワイヤーバレルに加えられた圧力によって、ワイヤーバレルの端縁から芯線が膨出することを抑制することができる。この結果、芯線が、端子以外の部材に接触して短絡することを抑制することができる。 The following aspects are preferred as embodiments of the technology disclosed in this specification.
It is preferable that the said crimping | compression-bonding member has a protrusion part which protrudes from the edge of the said wire barrel.
According to said aspect, the core wire which protrudes from the edge of a wire barrel is the state crimped | bonded by the protrusion part of the crimping | compression-bonding member. Thereby, it can suppress that a core wire bulges from the edge of a wire barrel with the pressure added to the wire barrel. As a result, it can suppress that a core wire contacts and short-circuits members other than a terminal.
　前記圧着部材には前記芯線の端部に当接する芯線当接部を備えることが好ましい。
　上記の態様によれば、芯線に対して圧着部材を組み付ける際に、芯線当接部を芯線の端縁に当接させることにより、芯線と圧着部材との位置決めを容易に行うことができる。 It is preferable that the crimping member includes a core wire contact portion that contacts an end portion of the core wire.
According to said aspect, when assembling a crimping | compression-bonding member with respect to a core wire, positioning of a core wire and a crimping | compression-bonding member can be easily performed by making a core wire contact part contact | abut to the edge of a core wire.
　前記圧着部材には、前記ワイヤーバレルの側縁に当接するワイヤーバレル当接部を備えることが好ましい。
　上記の態様によれば、ワイヤーバレル当接部の長さ寸法を適宜設定することにより、圧着部材とワイヤーバレルとが重なる長さ寸法を正確に設定できるようになっている。すなわち、まず、ワイヤーバレル当接部の先端がワイヤーバレルの側縁と当接することにより、ワイヤーバレルの側縁に対する、圧着部材の相対的な位置が定まる。この結果、圧着部材がワイヤーバレルと重なる長さ寸法が定まる。これにより、ワイヤーバレルと圧着部材とによって芯線が圧着されている高圧縮部の長さ寸法を確実に定めることができる。 It is preferable that the crimp member includes a wire barrel abutting portion that abuts on a side edge of the wire barrel.
According to said aspect, the length dimension which a crimping | compression-bonding member and a wire barrel overlap can be set correctly by setting the length dimension of a wire barrel contact part suitably. That is, first, the relative position of the crimping member with respect to the side edge of the wire barrel is determined by the tip of the wire barrel contact portion coming into contact with the side edge of the wire barrel. As a result, the length dimension in which the crimping member overlaps the wire barrel is determined. Thereby, the length dimension of the high compression part by which the core wire is crimped | bonded by the wire barrel and the crimping | compression-bonding member can be defined reliably.
　前記芯線は複数の金属製の素線を含み、｛（圧縮後の導体の断面積）／（圧縮前の導体の断面積）｝×１００（％）で定義された圧縮率について、前記低圧縮部の圧縮率は５０％よりも大きく設定されており、前記高圧縮部の圧縮率は５０％以下に設定されていることが好ましく、３５％以下に設定されていることがより好ましく、２５％以下に設定されていることが更に好ましく、２０％以下に設定されていることが特に好ましい。 The core wire includes a plurality of metal strands, and the compression ratio is defined as {(cross-sectional area of the conductor after compression) / (cross-sectional area of the conductor before compression)} × 100 (%). The compression ratio of the part is set to be larger than 50%, the compression ratio of the high compression part is preferably set to 50% or less, more preferably set to 35% or less, 25% More preferably, it is set below, and it is especially preferable that it is set to 20% or less.
　圧縮率を５０％以下とすることで芯線の酸化被膜を破壊することができる。これにより、芯線と端子との電気抵抗値を小さくすることができる。また、圧縮率を３５％以下とすると、芯線を構成する素線の表面同士が微視的に凝着するので電気的抵抗値を小さくすることができる。更に、圧縮率を２５％以下とすると、素線同士が巨視的に凝着するので、電気的抵抗値を更に小さくすることができる。更に、圧縮率を２０％以下にすると、素線同士を確実に凝着させることができるので、電気的抵抗値を確実に小さくすることができる。 When the compression ratio is 50% or less, the oxide film on the core wire can be broken. Thereby, the electrical resistance value of a core wire and a terminal can be made small. If the compression rate is 35% or less, the surfaces of the strands constituting the core wire are microscopically adhered to each other, so that the electrical resistance value can be reduced. Furthermore, when the compression rate is 25% or less, the wires are macroscopically adhered to each other, so that the electrical resistance value can be further reduced. Furthermore, when the compression ratio is 20% or less, the strands can be securely adhered to each other, and thus the electrical resistance value can be reliably reduced.
（発明の効果）
　本発明によれば、端子付き電線において、良好な電気的性能と電線（芯線）の保持力とを両立させることができる。 (The invention's effect)
ADVANTAGE OF THE INVENTION According to this invention, in an electric wire with a terminal, favorable electrical performance and the retention strength of an electric wire (core wire) can be made compatible.
　＜実施形態２－１＞
従来、端子付き電線として特開２０１０－６２０９７号公報に記載されているものが知られている。この端子付き電線においては、電線の端部から露出する芯線に、端子に形成されたワイヤーバレルを外側から巻き付けるように圧着することにより、電線と端子とが電気的に接続される。 <Embodiment 2-1>
Conventionally, an electric wire with a terminal described in JP 2010-62097 A is known. In this electric wire with terminal, the electric wire and the terminal are electrically connected to each other by crimping the wire barrel formed on the terminal around the core wire exposed from the end of the electric wire so as to be wound from the outside.
　しかしながら、端子付き電線の芯線の表面に酸化被膜が形成されると、芯線と端子との電気抵抗が大きくなることが懸念される。電気抵抗を小さくするためには、芯線に対して高い圧力でワイヤーバレルを巻き付けることにより、芯線の表面の酸化被膜を破壊することが考えられる。その結果、芯線の表面に形成された酸化被膜が破れて芯線の新生面が露出し、新生面と端子とが接触することにより、電気抵抗が小さくなることが期待された。 However, if an oxide film is formed on the surface of the core wire of the electric wire with terminal, there is a concern that the electrical resistance between the core wire and the terminal increases. In order to reduce the electrical resistance, it is conceivable to break the oxide film on the surface of the core wire by winding the wire barrel with a high pressure around the core wire. As a result, the oxide film formed on the surface of the core wire was broken to expose the new surface of the core wire, and it was expected that the electric resistance would be reduced by the contact between the new surface and the terminal.
　しかしながら上記の手法によると、芯線の断面積が大きく減少するため、機械的強度、特に衝撃的な荷重に対する引張強度（より具体的には圧着端子が電線を保持する強度）が低下する。また、芯線に高い圧力でワイヤーバレルを巻きつけることで、芯線が伸びてワイヤーバレルから飛び出したり、拡がったりすることがある。伸びた芯線は欠落しやすいため、短絡の原因となるという問題があった。 However, according to the above method, since the cross-sectional area of the core wire is greatly reduced, the mechanical strength, in particular, the tensile strength against an impact load (more specifically, the strength at which the crimp terminal holds the electric wire) is lowered. In addition, when the wire barrel is wound around the core wire with a high pressure, the core wire may be stretched and jumped out or expanded. Since the stretched core wire is easily lost, there is a problem of causing a short circuit.
　本明細書に開示された技術は上記のような事情に基づいて完成されたものであって、良好な電気的性能と芯線の保持力とを両立し、かつ、芯線の飛び出しを防止した端子付き電線を提供することを目的とする。 The technology disclosed in the present specification has been completed based on the above situation, and has a terminal that achieves both good electrical performance and core wire holding force and prevents the core wire from popping out. The purpose is to provide electric wires.
　本発明の実施形態２－１を、図２２ないし図２６によって説明する。本実施形態の端子付き電線２１０は、図２２に示すように、電線２１１と、この電線２１１の端部において露出する芯線２１２（露出芯線２１２ともいう）に圧着された圧着部材２２７と、圧着部材２２７とともに露出芯線２１２に圧着される端子２２０と、を備える。本実施形態に係る端子２２０は、いわゆるＬＡ端子とされる。 Embodiment 2-1 of the present invention will be described with reference to FIGS. As shown in FIG. 22, the terminal-attached electric wire 210 according to the present embodiment includes an electric wire 211, a crimping member 227 crimped to a core wire 212 (also referred to as an exposed core wire 212) exposed at an end of the electric wire 211, and a crimping member. 227 and a terminal 220 that is crimped to the exposed core wire 212. The terminal 220 according to the present embodiment is a so-called LA terminal.
　（電線２１１）
　電線２１１は、複数の金属製の素線２１４を撚り合わせてなる芯線２１２と、芯線２１２の外周を覆う合成樹脂製の絶縁被覆２１３とを備える。芯線２１２は、アルミニウム、アルミニウム合金、銅、銅合金等、必要に応じて任意の金属を用いることができる。本実施形態においては、アルミニウム又はアルミニウム合金製の複数の金属素線２１４が用いられている。電線２１１の端部は絶縁被覆２１３の剥離除去により芯線２１２が露出している。 (Electric wire 211)
The electric wire 211 includes a core wire 212 formed by twisting a plurality of metal wires 214, and an insulating coating 213 made of a synthetic resin that covers the outer periphery of the core wire 212. The core wire 212 can use arbitrary metals as needed, such as aluminum, an aluminum alloy, copper, a copper alloy. In the present embodiment, a plurality of metal wires 214 made of aluminum or aluminum alloy are used. At the end of the electric wire 211, the core wire 212 is exposed by peeling and removing the insulating coating 213.
　（端子２２０）
　端子２２０は、一般に用いられる形状のものであり、金属板材を所定形状にプレス加工することにより形成されている。金属板材は銅、銅合金、アルミニウム、アルミニウム合金、鉄、鉄合金等、必要に応じて任意の金属を用いることができる。本実施形態では銅又は銅合金が用いられる。また、金属板材にはスズ、ニッケル等任意の金属によるメッキが施されていてもよい。本実施形態ではスズメッキが施されている。 (Terminal 220)
The terminal 220 has a generally used shape, and is formed by pressing a metal plate material into a predetermined shape. As the metal plate material, any metal such as copper, copper alloy, aluminum, aluminum alloy, iron, iron alloy or the like can be used as necessary. In this embodiment, copper or a copper alloy is used. Further, the metal plate material may be plated with an arbitrary metal such as tin or nickel. In this embodiment, tin plating is applied.
　端子２２０は、図２３および図２４に示すように、電線２１１の端部側で露出する露出芯線２１２の外周に巻き付くようにして圧着されるワイヤーバレル２２１と、ワイヤーバレル２２１に連なって形成され、絶縁被覆２１３の外周に巻き付くように圧着されるインシュレーションバレル２２２と、ワイヤーバレル２２１からインシュレーションバレル２２２と反対側に延出されて、図示しない相手側部材と接続される接続部２２４と、を備える。 As shown in FIGS. 23 and 24, the terminal 220 is formed to be connected to the wire barrel 221 that is crimped so as to be wound around the outer periphery of the exposed core wire 212 exposed on the end portion side of the electric wire 211, and the wire barrel 221. An insulation barrel 222 that is crimped to wrap around the outer periphery of the insulating coating 213, and a connection portion 224 that extends from the wire barrel 221 to the opposite side of the insulation barrel 222 and is connected to a mating member (not shown). .
　接続部２２４は板状をなしており、図示しないボルトが挿通される挿通孔２２５が板厚方向に貫通して形成されている。 The connection portion 224 has a plate shape, and an insertion hole 225 through which a bolt (not shown) is inserted is formed to penetrate in the plate thickness direction.
　また、ワイヤーバレル２２１には、芯線２１２が載置される側の面に、電線２１１の軸方向と直交する方向に延びる複数の凹部２２６が、電線２１１の軸方向に間隔を空けて並んで形成されている。 In addition, a plurality of recesses 226 extending in a direction orthogonal to the axial direction of the electric wire 211 are formed in the wire barrel 221 so as to be arranged in the axial direction of the electric wire 211 on the surface on which the core wire 212 is placed. Has been.
　（圧着部材２２７、押さえ部材２２９）
　本実施形態においては、電線２１１の端部において露出する芯線２１２に圧着部材２２７が取り付けられている。圧着部材２２７は、金属板材を所定形状にプレス加工してなる。圧着部材２２７を構成する金属は、端子２２０を構成する金属と同じであってもよく、また、異なっていてもよい。本実施形態では、圧着部材２２７は端子２２０と同じ金属からなり、銅又は銅合金からなるとともにスズメッキが施されている。 (Crimping member 227, pressing member 229)
In the present embodiment, a crimping member 227 is attached to the core wire 212 exposed at the end of the electric wire 211. The crimping member 227 is formed by pressing a metal plate into a predetermined shape. The metal constituting the crimping member 227 may be the same as the metal constituting the terminal 220 or may be different. In this embodiment, the crimping member 227 is made of the same metal as the terminal 220, is made of copper or a copper alloy, and is tin-plated.
　圧着部材２２７の厚さ寸法は、端子２２０の厚さ寸法と同じであってもよく、また、異なっていてもよい。異なっている場合には、圧着部材２２７の厚さ寸法は、端子２２０よりも厚くてもよく、また、薄くてもよい。 The thickness dimension of the crimping member 227 may be the same as the thickness dimension of the terminal 220 or may be different. If they are different, the thickness dimension of the crimping member 227 may be thicker than that of the terminal 220 or may be thinner.
　さて、本実施形態において、圧着部材２２７は図２６に示すように、２組の圧着片２２８，２２９を有しており、当該２組の圧着片２２８，２２９は間隔をあけて一体的に設けられている。図２６における左側の一対の圧着片２２８を第１圧着片２２８とし、図示右側の一対の圧着片２２９を第２圧着片２２９とする。 Now, in this embodiment, the crimping member 227 has two sets of crimping pieces 228 and 229 as shown in FIG. 26, and the two sets of crimping pieces 228 and 229 are provided integrally with a space therebetween. It has been. In FIG. 26, the pair of pressure-bonding pieces 228 on the left side is referred to as a first pressure-bonding piece 228, and the pair of pressure-bonding pieces 229 on the right side in the drawing is referred to as a second pressure-bonding piece 229.
　一対の第１圧着片２２８は、図２２に示すように、露出芯線２１２の外周に巻きつけられるように圧着されるとともに、その外周には端子２２０のワイヤーバレル２２１が巻きつくように圧着されるようになっている。つまり、第１圧着片２２８は、ワイヤーバレル２２１とともに芯線２１２に圧着されて、ワイヤーバレル２２１のみが圧着される部分よりも芯線２１２を高い圧縮力で圧縮する機能を有する。 As shown in FIG. 22, the pair of first crimping pieces 228 are crimped so as to be wound around the outer periphery of the exposed core wire 212, and are crimped so that the wire barrel 221 of the terminal 220 is wound around the outer periphery thereof. It is like that. That is, the first crimping piece 228 has a function of being crimped to the core wire 212 together with the wire barrel 221 and compressing the core wire 212 with a higher compressive force than a portion to which only the wire barrel 221 is crimped.
　一方、一対の第２圧着片２２９は、図２２に示すように、第１圧着片２２８よりも、露出芯線２１２の先端寄りにおいて、露出芯線２１２の外周に巻きつけられるように圧着されており、ワイヤーバレル２２１の端縁よりも芯線２１２の先端寄りに配されている。 On the other hand, as shown in FIG. 22, the pair of second crimping pieces 229 are crimped so as to be wound around the outer periphery of the exposed core wire 212 closer to the tip of the exposed core wire 212 than the first crimped piece 228, It is arranged closer to the tip of the core wire 212 than the end edge of the wire barrel 221.
　第２圧着片２２９は、圧着部材２２７から芯線２１２が飛び出すのを防止する機能を有する（押さえ部材の一例）。したがって、本実施形態において、押さえ部材２２９は圧着部材２２７と一体の部材である。 The second crimping piece 229 has a function of preventing the core wire 212 from jumping out from the crimping member 227 (an example of a pressing member). Therefore, in this embodiment, the pressing member 229 is a member integrated with the crimping member 227.
　（圧着構造）
　図２２には、インシュレーションバレル２２２及びワイヤーバレル２２１が電線２１１に圧着された状態が示されている。上述したように、インシュレーションバレル２２２は、絶縁被覆２１３の外周に巻き付くように圧着されている。 (Crimp structure)
FIG. 22 shows a state where the insulation barrel 222 and the wire barrel 221 are crimped to the electric wire 211. As described above, the insulation barrel 222 is crimped so as to be wound around the outer periphery of the insulating coating 213.
　ワイヤーバレル２２１は、芯線２１２の外周と、芯線２１２に圧着された圧着部材２２７の外周とに、巻き付くようにして圧着されている。圧着部材２２７のうち、第２圧着片２２９（押さえ部材）はワイヤーバレル２２１の端縁から突出している。第２圧着片２２９の先端からは、芯線２１２が僅かに突出している。 The wire barrel 221 is crimped so as to be wound around the outer periphery of the core wire 212 and the outer periphery of the crimp member 227 crimped to the core wire 212. Of the crimping member 227, the second crimping piece 229 (pressing member) protrudes from the end edge of the wire barrel 221. The core wire 212 slightly protrudes from the tip of the second crimping piece 229.
　芯線２１２のうちワイヤーバレル２２１のみによって圧着された領域は、比較的に低圧縮された低圧縮部２１６とされる。ここで、圧縮率は、｛（圧縮後の導体の断面積）／（圧縮前の導体の断面積）｝×１００（％）で定義される。低圧縮とは、圧縮率が大きい値を示すことを意味し、高圧縮とは、圧縮率が小さい値を示すことを意味する。 The region of the core wire 212 that is crimped only by the wire barrel 221 is a low-compression portion 216 that is relatively low-compressed. Here, the compression rate is defined as {(cross-sectional area of the conductor after compression) / (cross-sectional area of the conductor before compression)} × 100 (%). Low compression means that the compression rate shows a large value, and high compression means that the compression rate shows a small value.
　一方、芯線２１２のうち、ワイヤーバレル２２１と、圧着部材２２７とによって圧着された領域は、低圧縮部２１６に比べて、圧着部の厚さ寸法だけ高圧縮された高圧縮部２１５とされる。 On the other hand, a region of the core wire 212 that is crimped by the wire barrel 221 and the crimping member 227 is a high compression portion 215 that is highly compressed by the thickness of the crimping portion as compared to the low compression portion 216.
　本実施形態において、圧縮率は、高圧縮部２１５において５０％以下とするのが好ましく、３５％以下とすることがより好ましく、２５％以下とすることが更に好ましく、２０％以下とすることが特に好ましい。 In the present embodiment, the compression rate is preferably 50% or less in the high compression portion 215, more preferably 35% or less, further preferably 25% or less, and 20% or less. Particularly preferred.
　圧縮率を５０％以下とすると、芯線２１２の酸化被膜を破壊することができ、これにより芯線２１２と端子２２０との接触抵抗を小さくすることが可能である。また、圧縮率を３５％以下とすると、芯線２１２を構成する素線２１４の表面同士が微視的に凝着するので電気的抵抗値を小さくすることができる。更に、圧縮率を２５％以下とすると、素線２１４同士が巨視的に凝着するので、電気的抵抗値を更に小さくすることができる。更に、圧縮率を２０％以下にすると、素線２１４同士を確実に凝着させることができるので、電気的抵抗値を確実に小さくすることができる。 When the compression ratio is 50% or less, the oxide film of the core wire 212 can be broken, and thereby the contact resistance between the core wire 212 and the terminal 220 can be reduced. If the compression rate is 35% or less, the surfaces of the strands 214 constituting the core wire 212 are microscopically adhered to each other, so that the electrical resistance value can be reduced. Furthermore, when the compression rate is 25% or less, the wires 214 adhere macroscopically, so that the electrical resistance value can be further reduced. Furthermore, when the compression ratio is 20% or less, the strands 214 can be securely adhered to each other, so that the electrical resistance value can be reliably reduced.
　一方、低圧縮部２１６における芯線２１２の圧縮率は、芯線２１２の切れを防止して良好な電線２１１（芯線２１２）保持力を確保するために５０％よりも大きいことが好ましく、６０～９０％であることがより好ましく、７０～８０％とすることが特に好ましい。 On the other hand, the compression rate of the core wire 212 in the low compression portion 216 is preferably greater than 50% in order to prevent breakage of the core wire 212 and ensure a good holding force of the electric wire 211 (core wire 212), and is preferably 60 to 90%. Is more preferable, and 70 to 80% is particularly preferable.
　（端子付き電線２１０の製造方法）
　本実施形態の端子付き電線２１０は以下の方法により作製することができる。
　電線２１１の端部の絶縁被覆２１３を剥離除去して芯線２１２を露出させておく一方、金属板材にプレス加工を施して端子２２０と、圧着部材２２７を作製する。 (Manufacturing method of the electric wire 210 with a terminal)
The terminal-attached electric wire 210 of this embodiment can be manufactured by the following method.
The insulation coating 213 at the end of the electric wire 211 is peeled and removed to expose the core wire 212, while the metal plate material is pressed to produce the terminal 220 and the crimping member 227.
　図２６に示す圧着部材２２７に電線２１１の端部において露出する芯線２１２を載置して、芯線２１２に圧着部材２２７の第１圧着片２２８を圧着する。第１圧着片２２８を圧着することにより圧着部材２２７が芯線２１２に対して位置決めされる（図２３～図２５を参照）。次に、図２４に示すように、第１圧着片２２８を取り付けた電線２１１を端子２２０の上に載置する。このとき圧着部材２２７の第２圧着片２２９がワイヤーバレル２２１の先端よりも図２３における左側（つまり端子２２０の接続部２２４側）に配されるようにする。 26. The core wire 212 exposed at the end of the electric wire 211 is placed on the crimp member 227 shown in FIG. 26, and the first crimp piece 228 of the crimp member 227 is crimped to the core wire 212. By crimping the first crimping piece 228, the crimping member 227 is positioned with respect to the core wire 212 (see FIGS. 23 to 25). Next, as shown in FIG. 24, the electric wire 211 to which the first crimping piece 228 is attached is placed on the terminal 220. At this time, the second crimping piece 229 of the crimping member 227 is arranged on the left side in FIG. 23 (that is, on the connection part 224 side of the terminal 220) from the tip of the wire barrel 221.
　次に、電線２１１の芯線２１２に、圧着部材２２７の第２圧着片２２９（押さえ部材２２９）および端子２２０のワイヤーバレル２２１を、かしめつけて圧着し、圧着工程と押さえ部材取付工程をほぼ同時に実行する。このとき、芯線２１２の、第１圧着片２２８により圧着された部分が、高い圧縮力を受けて芯線２１２が端子２２０の接続部２２４の方向に飛び出そうとするが、第２圧着片２２９により押さえられるので、芯線２１２は第２圧着片２２９の先端から僅かに突出するだけである。 Next, the second crimping piece 229 (pressing member 229) of the crimping member 227 and the wire barrel 221 of the terminal 220 are caulked and crimped to the core wire 212 of the electric wire 211, and the crimping process and the pressing member attaching process are executed almost simultaneously. To do. At this time, the portion of the core wire 212 crimped by the first crimping piece 228 receives a high compressive force and the core wire 212 tends to jump out in the direction of the connection portion 224 of the terminal 220. Therefore, the core wire 212 protrudes slightly from the tip of the second crimping piece 229.
　圧着工程の実行により、芯線２１２のうち、ワイヤーバレル２２１のみにより圧着された領域が低圧縮部２１６とされ、ワイヤーバレル２２１と圧着部材２２７とによって圧着された領域が、低圧縮部２１６に比べて、圧着部の厚さ寸法だけ高圧縮された高圧縮部２１５とされる。 By performing the crimping process, a region of the core wire 212 that is crimped only by the wire barrel 221 is the low compression portion 216, and a region that is crimped by the wire barrel 221 and the crimping member 227 is compared to the low compression portion 216. The high compression portion 215 is highly compressed by the thickness of the crimping portion.
　次に、インシュレーションバレル２２２を、電線２１１の絶縁被覆２１３により覆われた部分に圧着すると、本実施形態の端子付き電線２１０が得られる。 Next, when the insulation barrel 222 is crimped to a portion of the electric wire 211 covered with the insulating coating 213, the electric wire with terminal 210 of the present embodiment is obtained.
　（本実施形態の作用、効果）
　次に、本実施形態の作用、効果について説明する。
　本実施形態において、高圧縮部２１５では芯線２１２がワイヤーバレル２２１および圧着部材２２７により圧縮されることで、芯線２１２と圧着部材２２７が摺接して芯線２１２の表面に形成された酸化被膜が破壊されて金属の新生面が露出する。この新生面とワイヤーバレル２２１とが接触することにより芯線２１２と端子２２０との間の接触抵抗を小さくすることができる。 (Operation and effect of this embodiment)
Next, the operation and effect of this embodiment will be described.
In the present embodiment, the core wire 212 is compressed by the wire barrel 221 and the crimping member 227 in the high compression portion 215, so that the oxide film formed on the surface of the core wire 212 is destroyed by the sliding contact between the core wire 212 and the crimping member 227. The new surface of the metal is exposed. The contact resistance between the core wire 212 and the terminal 220 can be reduced by the contact between the new surface and the wire barrel 221.
　一方、芯線２１２のワイヤーバレル２２１のみに圧着された部分（低圧縮部２１６）では、高圧縮部２１５よりも低圧縮されているので、電線２１１と端子２２０との保持力を高めることができる。 On the other hand, since the portion (low compression portion 216) crimped only to the wire barrel 221 of the core wire 212 is compressed lower than the high compression portion 215, the holding force between the electric wire 211 and the terminal 220 can be increased.
　さらに、本実施形態においては、端子付き電線２１０が、圧着部材２２７から芯線２１２が飛び出すのを防止する押さえ部材２２９を備えるので、圧着部材２２７およびワイヤーバレル２２１が圧着されることにより芯線２１２に高い圧着力がかかったとしても、圧着部材２２７からの芯線２１２の飛び出しが防止される。 Furthermore, in the present embodiment, since the terminal-attached electric wire 210 includes a pressing member 229 that prevents the core wire 212 from jumping out from the crimping member 227, the crimping member 227 and the wire barrel 221 are crimped to increase the core wire 212. Even if a crimping force is applied, the core wire 212 is prevented from protruding from the crimping member 227.
　したがって、本実施形態によれば、良好な電気的性能と芯線２１２の保持力とを両立し、かつ、芯線２１２の飛び出しを防止した端子付き電線２１０を提供することができる。 Therefore, according to the present embodiment, it is possible to provide the terminal-attached electric wire 210 that achieves both good electrical performance and holding power of the core wire 212 and prevents the core wire 212 from jumping out.
　ところで、押さえ部材２２９を芯線２１２に嵌めこんで取り付ける場合、芯線２１２切れが懸念される。しかしながら、本実施形態によれば、押さえ部材２２９は芯線２１２の外側から巻き付けられるように取り付けられているから、押さえ部材２２９を芯線２１２に取り付ける際に、芯線２１２切れを防止することができる。 By the way, when the pressing member 229 is fitted into the core wire 212 and attached, there is a concern that the core wire 212 may be cut. However, according to this embodiment, since the pressing member 229 is attached so as to be wound from the outside of the core wire 212, the core wire 212 can be prevented from being cut when the pressing member 229 is attached to the core wire 212.
　また、本実施形態によれば、押さえ部材２２９と圧着部材２２７とは一体であるから、部品点数が少なくて済む。 In addition, according to the present embodiment, since the pressing member 229 and the crimping member 227 are integrated, the number of parts can be reduced.
　さらに本実施形態によれば、第１圧着片２２８を芯線２１２に取り付けて圧着部材２２７を芯線２１２に対して位置決めしてから、第２圧着片２２９（押さえ部材２２９）の取り付けとワイヤーバレル２２１の圧着をほぼ同時に行うので、圧着部材２２７の芯線２１２への取付およびワイヤーバレル２２１の圧着を効率よく行うことができる。 Furthermore, according to this embodiment, after attaching the first crimping piece 228 to the core wire 212 and positioning the crimping member 227 with respect to the core wire 212, the second crimping piece 229 (pressing member 229) is attached and the wire barrel 221 is attached. Since the crimping is performed almost simultaneously, the crimping member 227 can be attached to the core wire 212 and the wire barrel 221 can be crimped efficiently.
　＜実施形態２－２＞
　次に、本発明の実施形態２－２を説明する。本発明の実施形態２－２は、実施形態２－１の端子付き電線２１０の製造方法の別法に関するものであるので、図２７及び図２８に加えて実施形態２－１の説明に用いた図２２および図２６を参照しつつ説明する。
　本実施形態の端子付き電線２１０の製造方法においては、電線２１１の端部において露出する芯線２１２に、図２６に示す圧着部材２２７の第１圧着片２２８と第２圧着片２２９をそれぞれ圧着させて、図２７に示す圧着部材２２７の取り付けられた電線２１１を作製する（押さえ部材取付工程）。このとき芯線２１２には図２７および図２８に示すように芯線２１２の先端部に第２圧着片２２９（押さえ部材２２９）が、芯線２１２の外周に巻きつけられた状態で取り付けられ、芯線２１２の先端よりも絶縁被覆２１３寄りのところに第１圧着片２２８（圧着部材２２７）が芯線２１２の外周に巻き付けられた状態で取り付けられる。 <Embodiment 2-2>
Next, Embodiment 2-2 of the present invention will be described. Embodiment 2-2 of the present invention relates to another method of manufacturing the terminal-attached electric wire 210 of Embodiment 2-1, and was used in the description of Embodiment 2-1 in addition to FIGS. 27 and 28. This will be described with reference to FIGS.
In the method of manufacturing the terminal-attached electric wire 210 of the present embodiment, the first crimping piece 228 and the second crimping piece 229 of the crimping member 227 shown in FIG. 26 are respectively crimped to the core wire 212 exposed at the end of the electric wire 211. 27, the electric wire 211 to which the crimping member 227 shown in FIG. At this time, as shown in FIGS. 27 and 28, the second crimping piece 229 (pressing member 229) is attached to the core wire 212 in a state of being wound around the outer periphery of the core wire 212. The first crimping piece 228 (crimping member 227) is attached in a state where it is wound around the outer periphery of the core wire 212 near the insulating coating 213 from the tip.
　次に、第２圧着片２２９および第１圧着片２２８が取り付けられた芯線２１２を、第２圧着片２２９がワイヤーバレル２２１の端縁よりも端子２２０の接続部２２４寄りに配されるように載置して、ワイヤーバレル２２１を芯線２１２にかしめつけて圧着する（圧着工程）。 Next, the core wire 212 to which the second crimping piece 229 and the first crimping piece 228 are attached is placed so that the second crimping piece 229 is arranged closer to the connection part 224 of the terminal 220 than the edge of the wire barrel 221. The wire barrel 221 is crimped to the core wire 212 and crimped (crimping step).
　圧着工程を実行する際には、ワイヤーバレル２２１に載置した電線２１１が所定位置からずれないように、電線２１１の先端につきあて部材を配しておくのが好ましい。このとき、ワイヤーバレル２２１および第１圧着片２２８が圧着された部分では、高い圧縮力を受けて芯線２１２が端子２２０の接続部２２４方向に飛び出そうとするが、第２圧着片２２９により押さえられた状態でワイヤーバレル２２１が圧着されるので、芯線２１２は第２圧着片２２９の先端から僅かに突出するだけである。 When performing the crimping process, it is preferable to place a contact member on the tip of the electric wire 211 so that the electric wire 211 placed on the wire barrel 221 does not deviate from a predetermined position. At this time, in the portion where the wire barrel 221 and the first crimping piece 228 are crimped, the core wire 212 tends to jump out in the direction of the connecting portion 224 of the terminal 220 by receiving a high compressive force, but is pressed by the second crimping piece 229. Since the wire barrel 221 is crimped in this state, the core wire 212 protrudes slightly from the tip of the second crimping piece 229.
　圧着工程の実行により、芯線２１２のうち、ワイヤーバレル２２１のみにより圧着された領域が低圧縮部２１６とされ、ワイヤーバレル２２１と圧着部材２２７とによって圧着された領域が、低圧縮部２１６に比べて、圧着部の厚さ寸法だけ高圧縮された高圧縮部２１５とされる。 By performing the crimping process, a region of the core wire 212 that is crimped only by the wire barrel 221 is the low compression portion 216, and a region that is crimped by the wire barrel 221 and the crimping member 227 is compared to the low compression portion 216. The high compression portion 215 is highly compressed by the thickness of the crimping portion.
　次に、インシュレーションバレル２２２を、電線２１１の絶縁被覆２１３により覆われた部分に圧着すると、本実施形態によっても実施形態２－１と同様に、図２２に示す端子付き電線２１０が得られる。 Next, when the insulation barrel 222 is pressure-bonded to a portion of the electric wire 211 covered with the insulating coating 213, the electric wire with terminal 210 shown in FIG. 22 is obtained in the present embodiment as in the case of the embodiment 2-1.
　本実施形態によれば、圧着部材２２７を取り付けた芯線２１２の上下方向の向きが図２２に示す向きと逆であっていても、ワイヤーバレル２２１の圧着が可能である。 According to this embodiment, the wire barrel 221 can be crimped even if the vertical direction of the core wire 212 to which the crimping member 227 is attached is opposite to the orientation shown in FIG.
　＜実施形態２－３＞
　本発明の実施形態２－３を、図２９ないし図３２によって説明する。本実施形態の端子付き電線２３０は、図２９に示すように、電線２１１と、この電線２１１の端部において露出する芯線２１２（露出芯線２１２ともいう）に圧着された圧着部材２３７と、圧着部材２３７とともに露出芯線２１２に圧着される端子２２０と、を備える。 <Embodiment 2-3>
Embodiment 2-3 of the present invention will be described with reference to FIGS. 29 to 32. FIG. As shown in FIG. 29, the terminal-attached electric wire 230 of the present embodiment includes an electric wire 211, a crimping member 237 crimped to a core wire 212 (also referred to as an exposed core wire 212) exposed at the end of the electric wire 211, and a crimping member. 237 and a terminal 220 that is crimped to the exposed core wire 212.
　本実施形態の端子付き電線２３０は圧着部材２３７の形状が実施形態２－１と相違する。以下の説明において、実施形態２－１と同様の構成については同じ符号を付し、重複した説明は省略する。 The terminal-attached electric wire 230 of the present embodiment is different from the embodiment 2-1 in the shape of the crimping member 237. In the following description, the same components as those in Embodiment 2-1 are denoted by the same reference numerals, and redundant description is omitted.
　本実施形態において、圧着部材２３７は図３１および図３２に示すように、一対の圧着片２３８と、圧着片２３８と間隔をあけて一体的に形成されるとともにギリシャ文字の大文字のオメガ状をなす押さえ片２３９（押さえ部材）と、を有している。 In this embodiment, as shown in FIGS. 31 and 32, the crimping member 237 is formed integrally with a pair of crimping pieces 238 and a crimping piece 238 at an interval, and has a Greek letter capital omega shape. And a pressing piece 239 (pressing member).
　圧着片２３８は、図２９に示すように、露出芯線２１２の外周に巻きつけられるように圧着されるとともに、その外周には端子２２０のワイヤーバレル２２１が巻きつくように圧着されるようになっている。つまり、圧着片２３８は、ワイヤーバレル２２１とともに芯線２１２に圧着されて、ワイヤーバレル２２１のみが圧着される部分よりも芯線２１２を高い圧縮力で圧縮する機能を有する。圧着片２３８は実施形態２－１の第１圧着片２２８と同様の形状である。 As shown in FIG. 29, the crimping piece 238 is crimped so as to be wound around the outer periphery of the exposed core wire 212, and is crimped so that the wire barrel 221 of the terminal 220 is wound around the outer periphery thereof. Yes. That is, the crimping piece 238 has a function of being crimped to the core wire 212 together with the wire barrel 221 and compressing the core wire 212 with a higher compressive force than a portion to which only the wire barrel 221 is crimped. The crimping piece 238 has the same shape as the first crimping piece 228 of the embodiment 2-1.
　一方、押さえ片２３９は、図２９に示すように、圧着片２３８よりも、露出芯線２１２の先端寄りにおいて、露出芯線２１２の上を覆うとともに、芯線２１２を上から押さえつけるように取り付けられている。また押さえ片２３９は、ワイヤーバレル２２１の端縁よりも芯線２１２の先端寄りに配されている。押さえ片２３９は、圧着部材２３７から芯線２１２が飛び出すのを防止する機能を有する（押さえ部材の一例）。つまり、本実施形態の押さえ部材２３９も、圧着部材２３７と一体である。 On the other hand, as shown in FIG. 29, the pressing piece 239 is attached so as to cover the exposed core wire 212 and press the core wire 212 from above, closer to the tip of the exposed core wire 212 than the crimping piece 238. The holding piece 239 is arranged closer to the tip end of the core wire 212 than the end edge of the wire barrel 221. The pressing piece 239 has a function of preventing the core wire 212 from jumping out from the crimping member 237 (an example of a pressing member). That is, the pressing member 239 of this embodiment is also integral with the crimping member 237.
　本実施形態の端子付き電線２３０は以下の方法により作製することができる。圧着部材２３７に電線２１１の端部において露出する芯線２１２を載置して、芯線２１２に一対の圧着片２３８を圧着する。一対の圧着片２３８を圧着することにより圧着部材２３７が芯線２１２に対して位置決めされる（図３１および図３２を参照）。 The electric wire with terminal 230 of the present embodiment can be manufactured by the following method. The core wire 212 exposed at the end of the electric wire 211 is placed on the crimp member 237, and a pair of crimp pieces 238 are crimped to the core wire 212. The crimping member 237 is positioned with respect to the core wire 212 by crimping the pair of crimping pieces 238 (see FIGS. 31 and 32).
　次に、図３０に示すように、電線２１１の向きを押さえ片２３９が上側に配されるようにして端子２２０の上に載置する。このとき押さえ片２３９がワイヤーバレル２２１の先端よりも図２９における左側（つまり端子２２０の接続部２２４側）に配されるようにする。 Next, as shown in FIG. 30, the direction of the electric wire 211 is placed on the terminal 220 so that the pressing piece 239 is arranged on the upper side. At this time, the holding piece 239 is arranged on the left side in FIG. 29 (that is, on the connection part 224 side of the terminal 220) from the tip of the wire barrel 221.
　次に、電線２１１の芯線２１２に、端子２２０のワイヤーバレル２２１を、かしめつけて圧着し、圧着工程を実行する。このとき、圧着片２３８の圧着された部分が高い圧縮力を受けて芯線２１２が端子２２０の接続部２２４方向に飛び出そうとするが、押さえ片２３９と押さえ片２３９と対向する位置に配されている端子面２２３とにより押さえられて、芯線２１２は押さえ片２３９の先端から僅かに突出するだけである。 Next, the wire barrel 221 of the terminal 220 is caulked and crimped to the core wire 212 of the electric wire 211, and the crimping process is executed. At this time, the crimped portion of the crimping piece 238 receives a high compressive force, and the core wire 212 tends to jump out in the direction of the connecting portion 224 of the terminal 220. However, the core piece 212 is arranged at a position facing the holding piece 239 and the holding piece 239. The core wire 212 is slightly protruded from the tip of the pressing piece 239 by being pressed by the terminal surface 223 that is present.
　圧着工程の実行により、芯線２１２のうち、ワイヤーバレル２２１のみにより圧着された領域が低圧縮部２１６とされ、ワイヤーバレル２２１と圧着部材２３７とによって圧着された領域が、低圧縮部２１６に比べて、圧着部の厚さ寸法だけ高圧縮された高圧縮部１５とされる。 By performing the crimping process, a region of the core wire 212 that is crimped only by the wire barrel 221 is the low compression portion 216, and a region that is crimped by the wire barrel 221 and the crimping member 237 is compared to the low compression portion 216. The high compression portion 15 is highly compressed by the thickness dimension of the crimping portion.
　次に、インシュレーションバレル２２２を、電線２１１の絶縁被覆２１３により覆われた部分に圧着すると、本実施形態の端子付き電線２３０が得られる。 Next, when the insulation barrel 222 is crimped to a portion covered with the insulating coating 213 of the electric wire 211, the electric wire with terminal 230 of the present embodiment is obtained.
　以下、本実施形態の作用・効果を説明する。本実施形態においては、圧着片２３８を取り付けた状態の芯線２１２にワイヤーバレル２２１を圧着することにより押さえ片２３９が、芯線２１２に押しつけられるとともに、この押さえ片２３９と押さえ片２３９に対向する位置にある端子面２２３とにより芯線２１２が挟持されて圧着部材２３７からの芯線２１２の飛び出しが防止される。したがって、本実施形態によれば、圧着部材２３７およびワイヤーバレル２２１が圧着されることにより芯線２１２に高い圧着力がかかったとしても圧着部材２３７からの芯線２１２の飛び出しが防止される。 Hereinafter, functions and effects of this embodiment will be described. In the present embodiment, the pressing piece 239 is pressed against the core wire 212 by crimping the wire barrel 221 to the core wire 212 with the crimping piece 238 attached, and at a position facing the pressing piece 239 and the pressing piece 239. The core wire 212 is clamped by a certain terminal surface 223 to prevent the core wire 212 from protruding from the crimping member 237. Therefore, according to this embodiment, even if a high crimping force is applied to the core wire 212 due to the crimping of the crimp member 237 and the wire barrel 221, the core wire 212 is prevented from jumping out from the crimp member 237.
　したがって、本実施形態によっても実施形態２－１と同様に、良好な電気的性能と芯線２１２の保持力とを両立し、かつ、芯線２１２の飛び出しを防止した端子付き電線２３０を提供することができる。 Therefore, according to the present embodiment as well as the embodiment 2-1, it is possible to provide the electric wire with terminal 230 that achieves both good electrical performance and holding power of the core wire 212 and prevents the core wire 212 from protruding. it can.
　また、本実施形態によれば、押さえ片２３９は芯線２１２の上側から押さえ付けるように取り付けられているから、取り付けの際に芯線２１２切れを防止することができる。その他の点については実施形態２－１と概ね同様であるので、本実施形態によれば、実施形態２－１と同様の効果が得られる。 Further, according to the present embodiment, since the pressing piece 239 is attached so as to be pressed from the upper side of the core wire 212, it is possible to prevent the core wire 212 from being cut at the time of attachment. Since the other points are substantially the same as those of the embodiment 2-1, the present embodiment can provide the same effects as those of the embodiment 2-1.
　＜他の実施形態＞
　本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
　（１）上記実施形態では、圧着部材２２７と押さえ部材２２９とが一体の例を示したが、圧着部材と押さえ部材とが別体であってもよい。
　（２）上記実施形態では、押さえ部材２２９として、芯線２１２に巻き付けられるように取り付けられるものや、芯線２１２を押さえつけるような形状のものを示したが、芯線２１２に嵌めこまれる環状の押さえ部材であってもよい。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the example in which the crimping member 227 and the pressing member 229 are integrated is shown, but the pressing member and the pressing member may be separate.
(2) In the above embodiment, as the pressing member 229, a member that is attached to be wound around the core wire 212 or a shape that presses the core wire 212 is shown, but an annular pressing member that is fitted into the core wire 212 is used. There may be.
（課題を解決するための手段）
　本明細書に開示された技術は、芯線を絶縁被覆により被覆してなる電線と、前記電線の端部において前記絶縁被覆の剥離により露出する前記芯線に外側から巻き付けられるように圧着された圧着部材と、前記芯線及び前記圧着部材に外側から圧着されたワイヤーバレルを備えた端子と、を備え、前記芯線のうち前記圧着部材が巻き付けられた状態で前記ワイヤーバレルに圧着された部分は高圧縮部とされ、前記芯線のうち前記ワイヤーバレルのみに圧着された部分は前記高圧縮部よりも低圧縮された低圧縮部とされ、かつ、前記芯線に取り付けられ、前記圧着部材から前記芯線が飛び出すのを防止する押さえ部材を備える端子付き電線である。 (Means for solving the problem)
The technology disclosed in this specification includes an electric wire formed by covering a core wire with an insulating coating, and a crimping member that is crimped so as to be wound from the outside around the core wire exposed by peeling off the insulating coating at an end portion of the electric wire. And a terminal having a wire barrel crimped to the core wire and the crimping member from the outside, and a portion of the core wire that is crimped to the wire barrel in a state where the crimping member is wound is a high compression portion. The portion of the core wire that is crimped only to the wire barrel is a low compression portion that is compressed lower than the high compression portion, and is attached to the core wire, and the core wire pops out from the crimping member. It is an electric wire with a terminal provided with the pressing member which prevents.
　また、本明細書に開示された技術は、芯線を絶縁被覆により被覆してなる電線と、前記電線の端部において前記絶縁被覆の剥離により露出する前記芯線に外側から巻き付けられるように圧着された圧着部材と、前記芯線及び前記圧着部材に外側から圧着されたワイヤーバレルを有する端子と、を備える端子付き電線の製造方法であって、前記芯線の端部に、前記圧着部材から前記芯線が飛び出すのを防止する押さえ部材を取り付ける押さえ部材取付工程を経た後、前記ワイヤーバレルを、前記芯線および前記圧着部材に圧着することにより、前記芯線のうち前記圧着部材が巻き付けられた状態で前記ワイヤーバレルに圧着された部分を高圧縮部とし、前記芯線のうち前記ワイヤーバレルのみに圧着された部分を前記高圧縮部よりも低圧縮された低圧縮部とする圧着工程を実行する端子付き電線の製造方法である。 In addition, the technique disclosed in this specification is pressure-bonded so as to be wound from the outside around an electric wire obtained by coating a core wire with an insulating coating and an end portion of the electric wire exposed by peeling off the insulating coating. A method of manufacturing an electric wire with a terminal comprising: a crimping member; and a terminal having a wire barrel crimped to the core wire and the crimping member from the outside, wherein the core wire protrudes from the crimping member to an end portion of the core wire. After the pressing member mounting step for mounting the pressing member to prevent the wire barrel, the wire barrel is crimped to the core wire and the crimping member, so that the crimping member of the core wire is wound around the wire barrel. The crimped portion is a high compression portion, and the portion of the core wire that is crimped only to the wire barrel is compressed lower than the high compression portion. And a method of manufacturing an electric wire with terminal to perform a crimping step of the low compression portion.
　本明細書に開示された技術において、高圧縮部では芯線がワイヤーバレルおよび圧着部材により圧縮されることで、芯線と圧着部材が摺接して芯線の表面に形成された酸化被膜が破壊されて金属の新生面が露出する。この新生面とワイヤーバレルとが接触することにより芯線と端子との間の接触抵抗を小さくすることができる。 In the technique disclosed in the present specification, in the high compression portion, the core wire is compressed by the wire barrel and the crimping member, so that the oxide film formed on the surface of the core wire is broken by the sliding contact between the core wire and the crimping member. The new surface is exposed. Contact resistance between the core wire and the terminal can be reduced by contacting the new surface and the wire barrel.
　一方、ワイヤーバレルのみに圧着された部分（低圧縮部）では、高圧縮部よりも低圧縮されているので、電線と端子との保持力を高めることができる。 On the other hand, since the portion (low compression portion) crimped only to the wire barrel is compressed lower than the high compression portion, the holding force between the electric wire and the terminal can be increased.
　さらに本明細書に開示された技術において、端子付き電線は、圧着部材から芯線が飛び出すのを防止する押さえ部材を備えるので、圧着部材およびワイヤーバレルが圧着されることにより芯線に高い圧着力がかかったとしても、圧着部材からの芯線の飛び出しが防止される。 Furthermore, in the technique disclosed in this specification, since the electric wire with terminal includes a pressing member that prevents the core wire from jumping out from the crimping member, a high crimping force is applied to the core wire by crimping the crimping member and the wire barrel. Even so, the core wire is prevented from popping out from the crimping member.
　従って、本明細書に開示された技術によれば、良好な電気的性能と芯線の保持力とを両立し、かつ、芯線の飛び出しを防止した端子付き電線を提供することができる。 Therefore, according to the technology disclosed in the present specification, it is possible to provide an electric wire with a terminal that achieves both good electrical performance and holding power of the core wire and prevents the core wire from popping out.
　本明細書に開示された技術は以下の構成としてもよい。
　前記押さえ部材は前記芯線の外側から巻き付けられるように取り付けられていてもよい。
　前記押さえ部材取付工程において、前記押さえ部材を前記芯線の外側から巻き付けられるように取り付けてもよい。 The technology disclosed in this specification may have the following configuration.
The pressing member may be attached so as to be wound from the outside of the core wire.
In the pressing member mounting step, the pressing member may be mounted so as to be wound from the outside of the core wire.
　押さえ部材を芯線に嵌めこんで取り付ける場合、芯線切れが懸念されるが、上記のような構成とすると、押さえ部材を芯線に取り付ける際に、芯線切れを防止することができる。 When the pressing member is fitted to the core wire and attached, there is a concern about the core wire being cut, but with the above configuration, the core wire can be prevented from being cut when the holding member is attached to the core wire.
　前記押さえ部材と前記圧着部材とは一体であってもよい。
　前記押さえ部材取付工程において、前記圧着部材と一体の前記押さえ部材を取り付けてもよい。
　上記のような構成とすると、部品点数が少なくて済む。 The pressing member and the crimping member may be integrated.
In the pressing member attaching step, the pressing member integral with the crimping member may be attached.
With the above configuration, the number of parts can be reduced.
　前記芯線は複数の金属製の素線を含み、｛（圧縮後の導体の断面積）／（圧縮前の導体の断面積）｝×１００（％）で定義された圧縮率は、前記高圧縮部において５０％以下であってもよい。
　前記芯線は複数の金属製の素線を含むとともに、前記高圧縮部において、｛（圧縮後の導体の断面積）／（圧縮前の導体の断面積）｝×１００（％）で定義された圧縮率が５０％以下となるように圧縮されてもよい。 The core wire includes a plurality of metal strands, and the compression ratio defined by {(cross-sectional area of the conductor after compression) / (cross-sectional area of the conductor before compression)} × 100 (%) is the high compression It may be 50% or less in the part.
The core wire includes a plurality of metal wires and is defined as {(cross-sectional area of the conductor after compression) / (cross-sectional area of the conductor before compression)} × 100 (%) in the high compression portion. You may compress so that a compression rate may be 50% or less.
　上記のような構成とすると、芯線の酸化被膜を破壊することができ、これにより芯線と端子との接触抵抗を小さくすることが可能である。 With the configuration as described above, the oxide film on the core wire can be destroyed, thereby reducing the contact resistance between the core wire and the terminal.
（発明の効果）
　本明細書に開示された技術によれば、良好な電気的性能と芯線の保持力とを両立し、かつ、芯線の飛び出しを防止した端子付き電線を提供することができる。 (The invention's effect)
According to the technique disclosed in this specification, it is possible to provide a terminal-attached electric wire that achieves both good electrical performance and core wire holding force and prevents the core wire from popping out.
　＜実施形態３－１＞
　従来、端子付き電線として特開２０１０－６２０９７号公報に記載されているものが知られている。この端子付き電線においては、電線の端部から露出する芯線に、端子に形成されたワイヤーバレルを外側から巻き付けるように圧着することにより、電線と端子とが電気的に接続される。 <Embodiment 3-1>
Conventionally, an electric wire with a terminal described in JP 2010-62097 A is known. In this electric wire with terminal, the electric wire and the terminal are electrically connected to each other by crimping the wire barrel formed on the terminal around the core wire exposed from the end of the electric wire so as to be wound from the outside.
　しかしながら、端子付き電線において、芯線の表面に酸化被膜が形成されると、芯線と端子との電気抵抗が大きくなることが懸念される。電気抵抗を小さくするためには、芯線に対して高い圧力でワイヤーバレルを巻き付けることにより、芯線の表面の酸化被膜を破壊することが考えられる。その結果、芯線の表面に形成された酸化被膜が破れて芯線の新生面が露出し、新生面と端子とが接触することにより、電気抵抗が小さくなることが期待された。 However, in an electric wire with a terminal, when an oxide film is formed on the surface of the core wire, there is a concern that the electrical resistance between the core wire and the terminal increases. In order to reduce the electrical resistance, it is conceivable to break the oxide film on the surface of the core wire by winding the wire barrel with a high pressure around the core wire. As a result, the oxide film formed on the surface of the core wire was broken to expose the new surface of the core wire, and it was expected that the electric resistance would be reduced by the contact between the new surface and the terminal.
　しかしながら上記の手法によると、芯線の断面積が大きく減少するため、機械的強度、特に衝撃的な荷重に対する引張強度（より具体的には圧着端子が電線を保持する強度）が低下する。また、芯線に高い圧力でワイヤーバレルを巻きつけることにより、芯線が伸びて断線しやすくなるという問題がある。 However, according to the above method, since the cross-sectional area of the core wire is greatly reduced, the mechanical strength, in particular, the tensile strength against an impact load (more specifically, the strength at which the crimp terminal holds the electric wire) is lowered. Moreover, there exists a problem that a core wire is extended and it becomes easy to break by winding a wire barrel with a high pressure around a core wire.
　このような問題を解決するために、上記構成においては、ワイヤーバレルの端部に電線の軸方向に伸びる延出片を形成して、これをワイヤーバレルの芯線の接触面に折り返す技術が提案されている。 In order to solve such a problem, in the above configuration, a technique is proposed in which an extension piece extending in the axial direction of the electric wire is formed at the end of the wire barrel, and this is folded back to the contact surface of the core wire of the wire barrel. ing.
　上記構成によれば、ワイヤーバレルの芯線に対する圧縮率に差を与えて、端子付き電線の機械的強度を確保しつつ電線と端子との電気抵抗を小さくすることができる。 According to the above configuration, it is possible to reduce the electrical resistance between the electric wire and the terminal while ensuring the mechanical strength of the electric wire with terminal by giving a difference in the compressibility with respect to the core wire of the wire barrel.
　しかしながら、上記構成によれば、芯線のうち、ワイヤーバレルの接続部側の端部に配される部分には、高い圧縮力でワイヤーバレルの接続部側の端部が押しつけられるため、芯線が伸びて接続部側に飛び出すとともに伸びた芯線が切れる断線が生じやすくなるという問題があった。 However, according to the above configuration, the core wire is stretched because the end portion on the connection portion side of the wire barrel is pressed with a high compressive force on the portion of the core wire that is disposed on the end portion on the connection portion side of the wire barrel. As a result, there is a problem that disconnection is likely to occur as the core wire that protrudes to the connection portion is cut off.
　本明細書に開示された技術は上記のような事情に基づいて完成されたものであって、良好な電気的性能と芯線の保持力とを両立し、かつ、断線を防止した端子付き電線を提供することを目的とする。 The technology disclosed in the present specification has been completed based on the above-described circumstances, and has a terminal-attached electric wire that achieves both good electrical performance and core wire retention and prevents disconnection. The purpose is to provide.
　本発明の実施形態３－１を図３３ないし図３７によって説明する。
　本実施形態の端子付き電線３１０は図３３に示すように、電線３１１と、電線３１１の端部において絶縁被覆３１３の剥離により露出する芯線３１２に圧着された端子３２０と、を備える。 Embodiment 3-1 of the present invention will be described with reference to FIGS.
As shown in FIG. 33, the terminal-attached electric wire 310 of the present embodiment includes an electric wire 311 and a terminal 320 that is crimped to the core wire 312 exposed by peeling off the insulating coating 313 at the end of the electric wire 311.
　（電線３１１）
　電線３１１は、複数の金属製の素線３１４を撚り合わせてなる芯線３１２と、芯線３１２の外周を覆う合成樹脂製の絶縁被覆３１３とを備える。芯線３１２は、アルミニウム、アルミニウム合金、銅、銅合金等、必要に応じて任意の金属を用いることができる。本実施形態においては、アルミニウム又はアルミニウム合金製の複数の金属素線３１４が用いられている。電線３１１の端部は絶縁被覆３１３の剥離除去により芯線３１２が露出している。 (Electric wire 311)
The electric wire 311 includes a core wire 312 formed by twisting a plurality of metal wires 314 and an insulating coating 313 made of a synthetic resin that covers the outer periphery of the core wire 312. As the core wire 312, any metal such as aluminum, aluminum alloy, copper, copper alloy, or the like can be used as necessary. In the present embodiment, a plurality of metal strands 314 made of aluminum or aluminum alloy are used. At the end of the electric wire 311, the core wire 312 is exposed by peeling off the insulating coating 313.
　（端子３２０）
　端子３２０は、一般に用いられる形状のものであり、金属板材を所定形状にプレス加工することにより形成されている。金属板材は銅、銅合金、アルミニウム、アルミニウム合金、鉄、鉄合金等、必要に応じて任意の金属を用いることができる。本実施形態では銅又は銅合金が用いられる。また、金属板材にはスズ、ニッケル等任意の金属によるメッキが施されていてもよい。本実施形態ではスズメッキが施されている。 (Terminal 320)
The terminal 320 has a generally used shape, and is formed by pressing a metal plate material into a predetermined shape. As the metal plate material, any metal such as copper, copper alloy, aluminum, aluminum alloy, iron, iron alloy or the like can be used as necessary. In this embodiment, copper or a copper alloy is used. Further, the metal plate material may be plated with an arbitrary metal such as tin or nickel. In this embodiment, tin plating is applied.
　端子３２０は、図３４に示すように、電線３１１の端部側で露出する露出芯線３１２が載置される底板３２３と、底板３２３の両側部から立ち上がるように延出された概ね矩形状をなし芯線３１２の外周に巻き付くようにして圧着される一対のワイヤーバレル３２１，３２１と、ワイヤーバレル３２１に連なって形成され、絶縁被覆３１３の外周に巻き付くように圧着されるインシュレーションバレル３２２，３２２とを備える。また、端子３２０は、底板３２３のうちインシュレーションバレル３２２とは反対側の端部３２３Ａ（一端部３２３Ａの一例）から電線３１１の軸方向（長さ方向）に沿って延設されて、図示しない相手側部材と接続される接続部３２４と、を備える。 As shown in FIG. 34, the terminal 320 has a bottom plate 323 on which the exposed core wire 312 exposed on the end side of the electric wire 311 is placed, and a generally rectangular shape extending so as to rise from both sides of the bottom plate 323. A pair of wire barrels 321 and 321 which are crimped so as to be wound around the outer periphery of the core wire 312, and insulation barrels 322 and 322 which are formed continuously to the wire barrel 321 and are crimped so as to be wound around the outer periphery of the insulating coating 313. With. The terminal 320 extends from the end 323A (an example of the one end 323A) of the bottom plate 323 opposite to the insulation barrel 322 along the axial direction (length direction) of the electric wire 311 and is not illustrated. A connection portion 324 connected to the counterpart member.
　接続部３２４は板状をなしており、図示しないボルトが挿通される挿通孔３２５が板厚方向に貫通して形成されている。 The connecting portion 324 has a plate shape, and an insertion hole 325 through which a bolt (not shown) is inserted is formed to penetrate in the plate thickness direction.
　また、ワイヤーバレル３２１および底板３２３には、芯線３１２が載置される側の面に、電線３１１の軸方向と直交する方向に延びる複数の凹部３２６が、電線３１１の軸方向に間隔を空けて並んで形成されている。 In addition, the wire barrel 321 and the bottom plate 323 have a plurality of recesses 326 extending in a direction perpendicular to the axial direction of the electric wire 311 on the surface on which the core wire 312 is placed, spaced apart in the axial direction of the electric wire 311. It is formed side by side.
　（中子３２７）
　本実施形態においては、このような従来型の端子３２０に、中子３２７を組み合わせる。中子３２７は、図３７に示すように、端子３２０と同種類の細長い金属板を、芯線３１２に圧着前の底板３２３および一対のワイヤーバレル３２１，３２１にぴったり重なる角度に折り曲げたものである。中子３２７の長さは、一方のワイヤーバレル３２１の先端部３２１Ｃから他方のワイヤーバレル３２１の先端３２１Ｃまでの長さ寸法より若干短く形成されているとともに、その幅は、ワイヤーバレル３２１の（軸方向における）２つの端部３２１Ａ，３２１Ｂ間の長さの約１／２に設定されている。 (Core 327)
In this embodiment, a core 327 is combined with such a conventional terminal 320. As shown in FIG. 37, the core 327 is formed by bending an elongated metal plate of the same type as the terminal 320 at an angle that exactly overlaps the core plate 312 with the bottom plate 323 and the pair of wire barrels 321 and 321 before being crimped. The length of the core 327 is slightly shorter than the length dimension from the tip 321C of one wire barrel 321 to the tip 321C of the other wire barrel 321, and the width of the core 327 is the (axis of the wire barrel 321). It is set to about ½ of the length between the two ends 321A and 321B (in the direction).
　さて、中子３２７は、接続部側の端部３２７Ａ（図３４における左側の端部３２７Ａ）が、ワイヤーバレル３２１の接続部側の端部３２１Ａと間隔をあけて配置されるとともに、その全体がワイヤーバレル３２１に重ねられている。 Now, the core 327 is arranged such that the end 327A on the connection part side (the end 327A on the left side in FIG. 34) is spaced from the end 321A on the connection part side of the wire barrel 321, and the whole Overlaid on the wire barrel 321.
　中子３２７の位置は、ワイヤーバレル３２１の接続部側の端部３２１Ａから中子３２７の接続部側の端部３２７Ａまでの距離Ｘが、中子３２７の接続部とは反対側の端部３２７Ｂからワイヤーバレル３２１の接続部とは反対側の端部３２１Ｂまでの距離Ｙ以下となるように設定されている。 The position of the core 327 is such that the distance X from the end 321A on the connection part side of the wire barrel 321 to the end 327A on the connection part side of the core 327 is the end 327B on the opposite side to the connection part of the core 327. The distance Y is set to be equal to or less than the distance Y from the connection portion of the wire barrel 321 to the end portion 321B on the opposite side.
　中子３２７はワイヤーバレル３２１に重ねられることで、ワイヤーバレル３２１の厚み寸法を他の部分よりも大きくする（図３４を参照）。そして、芯線３１２のうち、ワイヤーバレル３２１の中子３２７が重ねられた領域が圧着された部分には、図３５に示すように、他の部分よりも高圧縮される高圧縮部３１５が形成される。一方、芯線３１２のうち、高圧縮部３１５を挟んで両側には、ワイヤーバレル３２１のみが圧着されることで、高圧縮部３１５よりも低圧縮された低圧縮部３１６Ａ，３１６Ｂがそれぞれ形成されている（図３６を参照）。 The core 327 is overlapped with the wire barrel 321 so that the thickness dimension of the wire barrel 321 is larger than that of other portions (see FIG. 34). In the core wire 312, a portion where the core 327 of the wire barrel 321 is overlapped is formed with a high compression portion 315 that is more highly compressed than other portions, as shown in FIG. 35. The On the other hand, only the wire barrel 321 is crimped on both sides of the core wire 312 with the high compression portion 315 interposed therebetween, thereby forming low compression portions 316A and 316B that are compressed lower than the high compression portion 315, respectively. (See FIG. 36).
　ここで、圧縮率は、｛（圧縮後の導体の断面積）／（圧縮前の導体の断面積）｝×１００（％）で定義される。低圧縮とは、圧縮率が大きい値を示すことを意味し、高圧縮とは、圧縮率が小さい値を示すことを意味する。 Here, the compression ratio is defined by {(cross-sectional area of the conductor after compression) / (cross-sectional area of the conductor before compression)} × 100 (%). Low compression means that the compression rate shows a large value, and high compression means that the compression rate shows a small value.
　中子３２７の接続部側の辺の角部は面取りされていて傾斜面３２７Ｃとなっており、中子３２７の接続部とは反対側の辺の角部も面取りされていて傾斜面３２７Ｄとなっている。これにより中子３２７により生じる段差に起因する芯線３１２の断線を防止することができる。 The corners on the side of the connecting portion side of the core 327 are chamfered to form an inclined surface 327C, and the corners on the side opposite to the connecting portion of the core 327 are also chamfered to form an inclined surface 327D. ing. Thereby, disconnection of the core wire 312 resulting from the level | step difference produced by the core 327 can be prevented.
　（端子付き電線３１０の製造方法）
　次に、本実施形態の端子付き電線３１０の製造方法について説明する。まず、図３７に示すように、中子３２７の全体を端子３２０の一対のワイヤーバレル３２１，３２１および一対のワイヤーバレル３２１，３２１間の底板３２３に重ね合わせる。このときの中子３２７の位置は、その接続部側の端部３２７Ａを、ワイヤーバレル３２１の接続部側の端部３２１Ａよりも図３７における右側にずらした位置とする。これにより中子３２７の接続部側の端部３２７Ａと、ワイヤーバレル３２１の接続部側の端部３２１Ａの間には間隔があく（図３７を参照）。 (Manufacturing method of the electric wire 310 with a terminal)
Next, the manufacturing method of the electric wire 310 with a terminal of this embodiment is demonstrated. First, as shown in FIG. 37, the entire core 327 is overlaid on the pair of wire barrels 321 and 321 of the terminal 320 and the bottom plate 323 between the pair of wire barrels 321 and 321. The position of the core 327 at this time is set such that the end 327A on the connection portion side is shifted to the right in FIG. 37 with respect to the end 321A on the connection portion side of the wire barrel 321. Thereby, there is a gap between the end portion 327A on the connection portion side of the core 327 and the end portion 321A on the connection portion side of the wire barrel 321 (see FIG. 37).
　次に、中子３２７が端子３２０に対して動かないように、レーザーを照射してピンポイント溶接を行い取り付ける（取付工程）。 Next, the laser beam is irradiated so that the core 327 does not move with respect to the terminal 320, and pinpoint welding is performed (attachment process).
　次に、電線３１１の端部から露出された露出芯線３１２を端子３２０の底板３２３上に載置し、図示しない圧着装置を用いて、ワイヤーバレル３２１を芯線３１２に圧着する。これにより、一対のワイヤーバレル３２１，３２１および中子３２７は芯線３１２に巻き付くように湾曲され、圧着される。 Next, the exposed core wire 312 exposed from the end of the electric wire 311 is placed on the bottom plate 323 of the terminal 320, and the wire barrel 321 is crimped to the core wire 312 using a crimping device (not shown). Accordingly, the pair of wire barrels 321 and 321 and the core 327 are curved and crimped so as to be wound around the core wire 312.
　この時、一対のワイヤーバレル３２１，３２１の一部には予め中子３２７が重ねられた状態とされているから、芯線３１２はワイヤーバレル３２１の位置によりその圧縮率が異なった状態とされる。すなわち、ワイヤーバレル３２１の接続部側の端部３２１Ａ寄りの領域では、図２に示すように、芯線３１２はワイヤーバレル３２１のみによりその周囲を圧縮されているので低圧縮な状態とされている（低圧縮部３１６Ａとする）。 At this time, since the core 327 is preliminarily overlaid on a part of the pair of wire barrels 321 and 321, the core wire 312 is in a state where the compression rate differs depending on the position of the wire barrel 321. That is, in the region near the end 321A on the connection portion side of the wire barrel 321, the core wire 312 is compressed only by the wire barrel 321, as shown in FIG. Low compression section 316A).
　低圧縮部３１６Ａの図３４における右側に隣接する領域では、芯線３１２はワイヤーバレル３２１および中子３２７によりその周囲を圧縮されているので、高圧縮な状態とされている（高圧縮部３１５とする）。 In the region adjacent to the right side in FIG. 34 of the low compression portion 316A, the core wire 312 is compressed around the wire barrel 321 and the core 327, and thus is in a high compression state (referred to as a high compression portion 315). ).
　高圧縮部３１５の図３４における右側に隣接する領域では、芯線３１２はワイヤーバレル３２１のみによりその周囲を圧縮されているので、低圧縮な状態とされている（低圧縮部３１６Ｂとする）。 In the region adjacent to the right side in FIG. 34 of the high compression portion 315, the core wire 312 is compressed around the wire barrel 321 alone, and thus is in a low compression state (referred to as a low compression portion 316B).
　高圧縮部３１５における芯線３１２の圧縮率は、芯線３１２の表面の酸化皮膜を破壊して電気抵抗が小さく良好な電気的性能を確保するために５０％以下とすることが好ましく、３５％以下とすることがより好ましく、２５％以下とすることが更に好ましく、２０％以下とすることが特に好ましい。 The compression rate of the core wire 312 in the high compression portion 315 is preferably 50% or less, and is preferably 35% or less in order to destroy the oxide film on the surface of the core wire 312 and ensure good electrical performance with low electrical resistance. More preferably, it is more preferably 25% or less, and particularly preferably 20% or less.
　圧縮率を５０％以下とすることで芯線３１２の酸化被膜を破壊することができる。これにより、芯線３１２と端子３２０との電気抵抗値を小さくすることができる。また、圧縮率を３５％以下とすると、芯線３１２を構成する素線３１４の表面同士が微視的に凝着するので電気的抵抗値を小さくすることができる。更に、圧縮率を２５％以下とすると、素線３１４同士が巨視的に凝着するので、電気的抵抗値を更に小さくすることができる。更に、圧縮率を２０％以下にすると、素線３１４同士を確実に凝着させることができるので、電気的抵抗値を確実に小さくすることができる。 When the compression ratio is 50% or less, the oxide film of the core wire 312 can be broken. Thereby, the electrical resistance value of the core wire 312 and the terminal 320 can be made small. If the compression rate is 35% or less, the surfaces of the strands 314 constituting the core wire 312 are microscopically adhered to each other, so that the electrical resistance value can be reduced. Furthermore, when the compression rate is 25% or less, the strands 314 adhere macroscopically, so that the electrical resistance value can be further reduced. Furthermore, when the compression ratio is 20% or less, the strands 314 can be reliably adhered to each other, so that the electrical resistance value can be reliably reduced.
　また、低圧縮部３１６Ａ，３１６Ｂにおける芯線３１２の圧縮率は、芯線３１２の切れを防止して良好な電線３１１（芯線３１２）保持力を確保するために５０％よりも大きいことが好ましく、６０～９０％であることがより好ましく、７０～８０％とすることが特に好ましい。 In addition, the compression rate of the core wire 312 in the low compression portions 316A and 316B is preferably larger than 50% in order to prevent the core wire 312 from being cut and to secure a good electric wire 311 (core wire 312) holding force. It is more preferably 90%, and particularly preferably 70 to 80%.
　本実施形態において、中子３２７の長さは一方のワイヤーバレル３２１の先端部３２１Ｃから他方のワイヤーバレル３２１の先端３２１Ｃまでの長さ寸法よりも若干短く設定してあるので、一対のワイヤーバレル３２１，３２１の各先端部３２１Ｃ，３２１Ｃの付き合わせ部分はしっかり圧着され、開き難くされている。換言すると、一対のワイヤーバレル３２１，３２１を芯線３１２に巻き付けるように圧着した場合に、一対のワイヤーバレル３２１，３２１の各先端部３２１Ｃ，３２１Ｃの付き合わせ部分をもたつかせることなくすっきりさせ、開き難くすることができるのである。 In the present embodiment, the length of the core 327 is set slightly shorter than the length dimension from the tip 321C of one wire barrel 321 to the tip 321C of the other wire barrel 321. , 321 of the tip portions 321C, 321C are firmly crimped and difficult to open. In other words, when the pair of wire barrels 321 and 321 are crimped so as to be wound around the core wire 312, the tip ends 321 </ b> C and 321 </ b> C of the pair of wire barrels 321 and 321 are not neatly held and difficult to open. It can be done.
　インシュレーションバレルを３２２を電線３１１の絶縁被覆３１３により覆われた部分に圧着すると本実施形態の端子付き電線３１０が得られる。 When the insulation barrel 322 is crimped to the portion covered with the insulating coating 313 of the electric wire 311, the terminal-attached electric wire 310 of this embodiment is obtained.
　（本実施形態の作用および効果）
　本実施形態において、中子３２７はその接続部側の端部３２７Ａが、ワイヤーバレル３２１の接続部側の端部３２１Ａと間隔をあけて配置され、その全体がワイヤーバレル３２１に重ねられた状態でワイヤーバレル３２１とともに芯線３１２に圧着されるので、芯線３１２のワイヤーバレル３２１が圧着される部分には、高圧縮部３１５を挟んで両側に低圧縮部３１６Ａ，３１６Ｂがそれぞれ形成される。 (Operation and effect of this embodiment)
In the present embodiment, the core 327 is arranged in such a manner that the end 327A on the connection part side is arranged at a distance from the end 321A on the connection part side of the wire barrel 321, and the entire part is superimposed on the wire barrel 321. Since it is crimped to the core wire 312 together with the wire barrel 321, low compression portions 316 </ b> A and 316 </ b> B are formed on both sides of the high compression portion 315 in the portion where the wire barrel 321 of the core wire 312 is crimped.
　本実施形態において、高圧縮部３１５では芯線３１２がワイヤーバレル３２１および中子３２７により圧縮されることで、芯線３１２と中子３２７が摺接して芯線３１２の表面に形成された酸化被膜が破壊されて金属の新生面が露出する。この新生面とワイヤーバレル３２１とが接触することにより芯線３１２と端子３２０との間の接触抵抗を小さくすることができる。 In the present embodiment, the core wire 312 is compressed by the wire barrel 321 and the core 327 in the high compression portion 315, so that the oxide film formed on the surface of the core wire 312 is destroyed by the sliding contact between the core wire 312 and the core 327. The new surface of the metal is exposed. The contact resistance between the core wire 312 and the terminal 320 can be reduced by the contact between the new surface and the wire barrel 321.
　一方、ワイヤーバレル３２１のみに圧着された低圧縮部３１６Ａ，３１６Ｂでは高圧縮部３１５よりも低圧縮されている。２つの低圧縮部３１６Ａ，３１６Ｂのうち、接続部とは反対側の低圧縮部３１６Ｂでは、低圧縮されていることにより電線３１１（芯線３１２）と端子３２０との保持力を高めることができる。接続部側の低圧縮部３１６Ａは、ワイヤーバレル３２１の接続部側の端部３２１Ａに形成されていることとなり、本実施形態においては、最も芯線３１２切れの起こりやすいワイヤーバレル３２１の接続部側の端部３２１Ａにおいて圧縮力が小さくなっているので、芯線３１２の断線が防止される。 On the other hand, the low compression portions 316A and 316B that are crimped only to the wire barrel 321 are compressed lower than the high compression portion 315. Of the two low compression portions 316A and 316B, the low compression portion 316B opposite to the connection portion can increase the holding force between the electric wire 311 (core wire 312) and the terminal 320 due to low compression. The low compression portion 316A on the connection portion side is formed at the end portion 321A on the connection portion side of the wire barrel 321, and in the present embodiment, the connection portion side of the wire barrel 321 that is most likely to break the core wire 312 is formed. Since the compressive force is small at the end 321A, disconnection of the core wire 312 is prevented.
　以上より、本実施形態によれば、良好な電気的性能と芯線３１２の保持力とを両立し、かつ、芯線３１２の断線を防止した端子付き電線３１０を提供することができる。 As described above, according to the present embodiment, it is possible to provide the terminal-attached electric wire 310 that achieves both good electrical performance and the holding force of the core wire 312 and prevents the core wire 312 from being disconnected.
　ところで、中子３２７を、ワイヤーバレル３２１に取り付けずに、ワイヤーバレル３２１に載置した状態で芯線３１２に圧着すると、中子３２７の位置ずれが懸念されるが、本実施形態の製造方法によれば、先に中子３２７をワイヤーバレル３２１に取り付けておくので、位置ずれの問題は生じにくい。 By the way, if the core 327 is pressure-bonded to the core wire 312 while being mounted on the wire barrel 321 without being attached to the wire barrel 321, there is a concern about the displacement of the core 327, but according to the manufacturing method of the present embodiment. For example, since the core 327 is attached to the wire barrel 321 first, the problem of misalignment hardly occurs.
　ところで、本実施形態においては、接続部側の低圧縮部３１６Ａは、芯線３１２の飛び出しや芯線３１２切れを防止する機能を有する一方、接続部とは反対側の低圧縮部３１６Ｂは電線３１１（芯線３１２）と端子３２０とを保持する機能を有する。つまり、本実施形態においては、接続部とは反対側の低圧縮部３１６Ｂの方が、接続部側の低圧縮部３１６Ａよりも大きな保持力が必要である。本実施形態によれば、ワイヤーバレル３２１の接続部側の端部３２１Ａから中子３２７の接続部側の端部３２７Ａまでの距離Ｘは、中子３２７の接続部とは反対側の端部３２７Ｂからワイヤーバレル３２１の接続部とは反対側の端部３２１Ｂまでの距離Ｙ以下であるから、接続部とは反対側の低圧縮部３１６Ｂにおいて、接続部側の低圧縮部３１６Ａよりも保持力を大きくすることができる。 By the way, in the present embodiment, the low compression portion 316A on the connection portion side has a function of preventing the core wire 312 from popping out and the core wire 312 being cut off, while the low compression portion 316B on the opposite side to the connection portion is the electric wire 311 (core wire 312) and the terminal 320. That is, in the present embodiment, the low compression portion 316B on the side opposite to the connection portion requires a larger holding force than the low compression portion 316A on the connection portion side. According to the present embodiment, the distance X from the end 321A on the connection part side of the wire barrel 321 to the end 327A on the connection part side of the core 327 is the end 327B on the opposite side to the connection part of the core 327. Is less than or equal to the distance Y from the connection part of the wire barrel 321 to the end part 321B on the side opposite to the connection part, in the low compression part 316B on the opposite side to the connection part, the holding force is higher than the low compression part 316A on the connection part side. Can be bigger.
　また、本実施形態によれば、中子３２７の接続部側の辺の角部および接続部とは反対側の辺の角部はともに面取りされて傾斜面３２７Ｃ，３２７Ｄとなっているから、中子３２７により生じる段差に起因する芯線３１２の断線を防止することができる。 In addition, according to the present embodiment, the corner portion of the side on the connecting portion side of the core 327 and the corner portion on the side opposite to the connecting portion are both chamfered to form inclined surfaces 327C and 327D. The disconnection of the core wire 312 due to the level difference caused by the child 327 can be prevented.
　＜他の実施形態＞
　本発明は上記記述及び図面によって説明した実施形態に限定されるものではなく、例えば次のような実施形態も本発明の技術的範囲に含まれる。
　（１）上記実施形態では、ワイヤーバレル３２１の接続部側の端部３２１Ａから中子３２７の接続部側の端部３２７Ａまでの距離Ｘは、中子３２７の接続部とは反対側の端部３２７Ｂからワイヤーバレル３２１の接続部とは反対側の端部３２１Ｂまでの距離Ｙ以下となるように中子３２７を配置したが、ワイヤーバレルの接続部側の端部から中子の接続部側の端部までの距離は、中子の接続部とは反対側の端部からワイヤーバレルの接続部とは反対側の端部までの距離よりも大きくなるように中子を配置してもよい。
　（２）上記実施形態では、接続部側の辺の角部および接続部とは反対側の辺の角部がともに面取りされている中子３２７を示したが、いずれか一方のみの角部が面取りされている中子や、いずれの角部も面とりされていない中子であってもよい。 <Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the distance X from the end 321 </ b> A on the connection portion side of the wire barrel 321 to the end 327 </ b> A on the connection portion side of the core 327 is the end opposite to the connection portion of the core 327. The core 327 is arranged so that the distance Y is less than or equal to the distance Y from 327B to the end 321B on the side opposite to the connection part of the wire barrel 321, but from the connection part side end of the wire barrel to the connection part side of the core The core may be arranged such that the distance to the end portion is larger than the distance from the end portion on the opposite side to the connecting portion of the core to the end portion on the opposite side to the connecting portion of the wire barrel.
(2) In the above embodiment, the core 327 is shown in which the corner of the side on the connection portion side and the corner of the side opposite to the connection portion are chamfered, but only one of the corners is It may be a chamfered core or a core whose corners are not chamfered.
（課題を解決するための手段）
　本明細書に開示された技術は、芯線を絶縁被覆により被覆してなる電線と、前記電線の端部において前記絶縁被覆の剥離により露出する前記芯線に圧着された端子と、を備える端子付き電線であって、前記端子は、前記露出する芯線が載置される底板と、前記底板の両側部から側方へ延出されるとともに前記底板に載置された前記芯線に巻きつくように圧着される一対のワイヤーバレルと、前記底板の一端部からその長さ方向に延設されて相手方端子に接続される接続部と、前記ワイヤーバレルに重ねられることで、前記ワイヤーバレルの厚み寸法を他の部分よりも大きくする中子と、を有し、前記中子は、その前記接続部側の端部が前記ワイヤーバレルの前記接続部側の端部と間隔をあけて配置されるとともに、その全体が前記ワイヤーバレルに重ねられ、前記芯線のうち前記ワイヤーバレルの前記中子が重ねられた領域が圧着された部分には高圧縮部が形成され、前記芯線のうち前記高圧縮部を挟んで両側には、前記ワイヤーバレルのみが圧着されることで、前記高圧縮部よりも低圧縮された低圧縮部がそれぞれ形成されている端子付き電線である。 (Means for solving the problem)
The technology disclosed in this specification includes an electric wire having a core wire covered with an insulating coating, and a terminal crimped to the core wire exposed by peeling of the insulating coating at an end of the electric wire. And the said terminal is crimped | bonded so that it may wrap around the said core wire mounted in the bottom plate by which the said exposed core wire is mounted, and the both sides of the said bottom plate are extended from the both sides. A pair of wire barrels, a connecting portion extending in the length direction from one end portion of the bottom plate and connected to a counterpart terminal, and being stacked on the wire barrel, the thickness dimension of the wire barrel is changed to another portion. A core that is larger than the core, and the core is disposed such that an end on the connection portion side is spaced from an end on the connection portion side of the wire barrel, and the entire Wire bar A high compression portion is formed in the portion where the core of the wire barrel is overlapped in the core wire, and on both sides of the core wire with the high compression portion interposed therebetween, It is an electric wire with a terminal in which only the wire barrel is crimped to form a low-compression portion that is compressed lower than the high-compression portion.
　また、本明細書に開示された技術は、芯線を絶縁被覆により被覆してなる電線と、前記電線の端部において前記絶縁被覆の剥離により露出する前記芯線に圧着された端子と、を備える端子付き電線の製造方法であって、前記端子は、前記露出する芯線が載置される底板と、前記底板の両側部から側方へ延出されるとともに前記底板に載置された前記芯線に巻きつくように圧着される一対のワイヤーバレルと、前記底板の一端部からその長さ方向に延設されて相手方端子に接続される接続部と、前記ワイヤーバレルに重ねられることで、前記ワイヤーバレルの厚み寸法を他の部分よりも大きくする中子と、を有し、前記ワイヤーバレルに、前記中子を、その前記接続部側の端部を前記ワイヤーバレルの前記接続部側の端部との間に間隔をあけて配置するとともに、前記中子全体が前記ワイヤーバレルに重なるように取り付ける取付工程を経た後、前記芯線を前記底板に載置して前記ワイヤーバレルを圧着することにより、前記芯線のうち前記ワイヤーバレルの前記中子が重ねられた領域が圧着された部分に高圧縮部を形成するとともに、前記芯線のうち前記高圧縮部を挟んで両側において、前記ワイヤーバレルのみが圧着された部分に、前記高圧縮部よりも低圧縮された低圧縮部をそれぞれ形成する端子付き電線の製造方法である。 Further, the technology disclosed in the present specification is a terminal including: an electric wire formed by covering a core wire with an insulating coating; and a terminal crimped to the core wire exposed by peeling off the insulating coating at an end portion of the electric wire. A method of manufacturing an attached electric wire, wherein the terminal is wound around the bottom plate on which the exposed core wire is placed and the core wire placed on the bottom plate while being extended laterally from both sides of the bottom plate. A pair of wire barrels that are crimped in this way, a connection portion that extends in the length direction from one end of the bottom plate and is connected to a counterpart terminal, and a thickness of the wire barrel that is superimposed on the wire barrel A core whose dimensions are larger than those of the other parts, and the wire barrel, the core, and an end of the connection portion between the end of the wire barrel and the end of the wire barrel. At intervals After placing and attaching the whole core so as to overlap the wire barrel, by placing the core wire on the bottom plate and crimping the wire barrel, the wire barrel of the core wire The high compression portion is formed in a portion where the region where the core is overlapped is crimped, and the high compression is applied to the portion where only the wire barrel is crimped on both sides of the high compression portion of the core wire. It is a manufacturing method of the electric wire with a terminal which forms the low compression part compressed lower than the part, respectively.
　本明細書に開示された技術において、中子はその接続部側の端部が、ワイヤーバレルの接続部側の端部と間隔をあけて配置され、その全体がワイヤーバレルに重ねられた状態でワイヤーバレルとともに芯線に圧着される。これにより本発明では、芯線のワイヤーバレルが圧着される部分には、高圧縮部を挟んで両側に低圧縮部がそれぞれ形成される。 In the technology disclosed in the present specification, the core is arranged such that the end on the side of the connecting portion is spaced from the end on the side of the connecting portion of the wire barrel, and the whole is overlapped with the wire barrel. It is crimped to the core wire together with the wire barrel. Thereby, in this invention, the low compression part is each formed in the part by which the wire barrel of a core wire is crimped | bonded on both sides on both sides of a high compression part.
　本明細書に開示された技術において、高圧縮部では芯線がワイヤーバレルおよび中子により圧縮されることで、芯線と中子が摺接して芯線の表面に形成された酸化被膜が破壊されて金属の新生面が露出する。この新生面とワイヤーバレルとが接触することにより芯線と端子との間の接触抵抗を小さくすることができる。 In the technique disclosed in the present specification, in the high compression portion, the core wire is compressed by the wire barrel and the core, so that the oxide film formed on the surface of the core wire is destroyed by the sliding contact between the core wire and the core. The new surface is exposed. Contact resistance between the core wire and the terminal can be reduced by contacting the new surface and the wire barrel.
　一方、ワイヤーバレルのみに圧着された低圧縮部では高圧縮部よりも低圧縮されている。２つの低圧縮部のうち、接続部とは反対側の低圧縮部では、低圧縮されていることにより電線（芯線）と端子との保持力を高めることができる。 On the other hand, the low compression part crimped only to the wire barrel is compressed lower than the high compression part. Of the two low-compression parts, the low-compression part on the side opposite to the connection part can increase the holding force between the electric wire (core wire) and the terminal due to low compression.
　そして、２つの低圧縮部のうち、接続部側の低圧縮部は、ワイヤーバレルの接続部側の端部に形成されていることとなる。したがって、本発明においては、最も芯線切れの起こりやすいワイヤーバレルの接続部側の端部において圧縮力が小さくなっているので、芯線の断線が防止される。
　以上より、本明細書に開示された技術によれば、良好な電気的性能と芯線の保持力とを両立し、かつ、芯線の断線を防止した端子付き電線を提供することができる。 And the low compression part by the side of a connection part among the two low compression parts will be formed in the edge part by the side of the connection part of a wire barrel. Therefore, in the present invention, since the compressive force is small at the end of the wire barrel where the core wire is most likely to be disconnected, disconnection of the core wire is prevented.
As described above, according to the technique disclosed in this specification, it is possible to provide a terminal-attached electric wire that achieves both good electrical performance and core wire holding force and prevents the core wire from being disconnected.
　ところで、中子を、ワイヤーバレルに取り付けずに、ワイヤーバレルに載置した状態で芯線に圧着すると、中子の位置ずれが懸念されるが、本発明の製造方法によれば、先に中子をワイヤーバレルに取り付けておくので、位置ずれの問題は生じにくい。 By the way, when the core is crimped to the core wire in a state where it is placed on the wire barrel without being attached to the wire barrel, there is a concern about the positional displacement of the core. Is attached to the wire barrel, so the problem of displacement is less likely to occur.
　本明細書に開示された技術は以下の構成としてもよい。
　前記ワイヤーバレルの前記接続部側の端部から前記中子の前記接続部側の端部までの距離は、前記中子の前記接続部とは反対側の端部から前記ワイヤーバレルの前記接続部とは反対側の端部までの距離以下であってもよい。
　前記ワイヤーバレルの前記接続部側の端部から前記中子の前記接続部側の端部までの距離が、前記中子の前記接続部とは反対側の端部から前記ワイヤーバレルの前記接続部とは反対側の端部までの距離以下となるように前記中子を前記ワイヤーバレルに取り付けてもよい。
　本明細書に開示された技術において、接続部側の低圧縮部は、芯線の飛び出しや芯線切れを防止する機能を有する一方、接続部とは反対側の低圧縮部は電線（芯線）と端子とを保持する機能を有する。つまり、接続部とは反対側の低圧縮部の方が、接続部側の低圧縮部よりも大きな保持力が必要である。 The technology disclosed in this specification may have the following configuration.
The distance from the end of the wire barrel on the side of the connecting part to the end of the core on the side of the connecting part is from the end of the core opposite to the connecting part on the side of the connecting part of the wire barrel. Or less than the distance to the opposite end.
The distance from the connecting part side end of the wire barrel to the connecting part side end of the core is from the end of the core opposite to the connecting part to the connecting part of the wire barrel. You may attach the said core to the said wire barrel so that it may become below the distance to the edge part on the opposite side.
In the technology disclosed in this specification, the low compression portion on the connection portion side has a function of preventing the core wire from protruding and the core wire from being cut off, while the low compression portion on the side opposite to the connection portion is an electric wire (core wire) and a terminal. It has the function to hold. That is, the low compression part on the opposite side to the connection part requires a larger holding force than the low compression part on the connection part side.
　そこで、上記のような構成とすると、接続部とは反対側の低圧縮部において、接続部側の低圧縮部よりも保持力を大きくすることができる。 Therefore, with the configuration as described above, the holding force can be increased in the low compression portion on the side opposite to the connection portion, compared to the low compression portion on the connection portion side.
　前記中子の前記接続部側の辺の角部および前記接続部とは反対側の辺の角部はともに面取りされていてもよい。
　このような構成とすると、中子により生じる段差に起因する芯線の断線を防止することができる。 Both the corners of the side of the core on the side of the connecting part and the corners of the side opposite to the connecting part may be chamfered.
With such a configuration, it is possible to prevent disconnection of the core wire due to the step generated by the core.
（発明の効果）
　本明細書に開示された技術によれば、良好な電気的性能と芯線の保持力とを両立し、かつ、芯線の断線を防止した端子付き電線を提供することができる。 (The invention's effect)
According to the technology disclosed in the present specification, it is possible to provide an electric wire with a terminal that achieves both good electrical performance and core wire holding force and prevents the core wire from being disconnected.

Claims (7)

  1. 　芯線を有する電線と、
    　前記電線の端部から露出する前記芯線の端部に外側から巻き付けられるように圧着された圧着部材と、
    　前記芯線及び前記圧着部材に外側から圧着されたワイヤーバレルを備えた端子と、を備え、
    　前記芯線のうち前記圧着部材が巻き付けられた状態で前記ワイヤーバレルに圧着された部分は高圧縮部とされ、前記芯線のうち前記ワイヤーバレルのみに圧着された部分は前記高圧縮部よりも低圧縮された低圧縮部とされる端子付き電線。     An electric wire having a core wire;
    A crimping member that is crimped to be wound from the outside around the end of the core wire exposed from the end of the electric wire;
    Comprising a wire barrel crimped from the outside to the core wire and the crimping member, and
    A portion of the core wire that is crimped to the wire barrel in a state where the crimping member is wound is a high compression portion, and a portion of the core wire that is crimped only to the wire barrel is less compressed than the high compression portion. The electric wire with a terminal used as the low compression part.
  2. 前記芯線に取り付けられ、前記圧着部材から前記芯線が飛び出すのを防止する押さえ部材を備える請求項１に記載の端子付き電線。 The electric wire with a terminal according to claim 1, further comprising a pressing member that is attached to the core wire and prevents the core wire from protruding from the crimping member.
  3. 芯線を絶縁被覆により被覆してなる電線と、
    前記電線の端部において前記絶縁被覆の剥離により露出する前記芯線に圧着された端子と、を備える端子付き電線であって、
    前記端子は、前記露出する芯線が載置される底板と、前記底板の両側部から側方へ延出されるとともに前記底板に載置された前記芯線に巻きつくように圧着される一対のワイヤーバレルと、前記底板の一端部からその長さ方向に延設されて相手方端子に接続される接続部と、前記ワイヤーバレルに重ねられることで、前記ワイヤーバレルの厚み寸法を他の部分よりも大きくする中子と、を有し、
    　前記中子は、その前記接続部側の端部が前記ワイヤーバレルの前記接続部側の端部と間隔をあけて配置されるとともに、その全体が前記ワイヤーバレルに重ねられ、
    　前記芯線のうち前記ワイヤーバレルの前記中子が重ねられた領域が圧着された部分には高圧縮部が形成され、前記芯線のうち前記高圧縮部を挟んで両側には、前記ワイヤーバレルのみが圧着されることで、前記高圧縮部よりも低圧縮された低圧縮部がそれぞれ形成されている端子付き電線。     An electric wire obtained by coating a core wire with an insulating coating;
    A terminal crimped to the core wire exposed by peeling off the insulating coating at the end of the electric wire,
    The terminal includes a bottom plate on which the exposed core wire is placed, and a pair of wire barrels that are laterally extended from both sides of the bottom plate and are crimped to wrap around the core wire placed on the bottom plate. And a connecting portion extending in the length direction from one end portion of the bottom plate and connected to the counterpart terminal, and being overlapped with the wire barrel, thereby making the thickness dimension of the wire barrel larger than other portions. A core, and
    The core has an end on the side of the connecting portion arranged at a distance from an end on the side of the connecting portion of the wire barrel, and the whole is overlaid on the wire barrel,
    A portion of the core wire where the core of the wire barrel is overlapped is formed with a high compression portion, and only the wire barrel is provided on both sides of the core wire with the high compression portion interposed therebetween. A terminal-attached electric wire in which a low-compression portion that is compressed lower than the high-compression portion is formed by crimping.
  4. 　前記芯線は複数の金属製の素線を含み、
    　｛（圧縮後の導体の断面積）／（圧縮前の導体の断面積）｝×１００（％）で定義された圧縮率について、前記低圧縮部の圧縮率は５０％よりも大きく設定されており、前記高圧縮部の圧縮率は５０％以下に設定されている、請求項１ないし請求項３のいずれか一項に記載の端子付き電線。     The core wire includes a plurality of metal strands,
    {(Cross sectional area of conductor after compression) / (Cross sectional area of conductor before compression)} × 100 (%) The compression ratio of the low compression portion is set to be larger than 50%. The terminal-attached electric wire according to any one of claims 1 to 3, wherein a compression rate of the high compression portion is set to 50% or less.
  5. 　前記高圧縮部の圧縮率は、３５％以下に設定されている請求項４に記載の端子付き電線。 The terminal-attached electric wire according to claim 4, wherein a compression ratio of the high compression portion is set to 35% or less.
  6. 　前記高圧縮部の圧縮率は、２５％以下に設定されている請求項５に記載の端子付き電線。 The terminal-attached electric wire according to claim 5, wherein a compression ratio of the high compression portion is set to 25% or less.
  7. 　前記高圧縮部の圧縮率は、２０％以下に設定されている請求項６に記載の端子付き電線。 The terminal-attached electric wire according to claim 6, wherein the compression ratio of the high compression portion is set to 20% or less.
PCT/JP2013/058504 2012-03-28 2013-03-25 Electric wire with terminal attached thereto WO2013146640A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014507849A JP5704422B2 (en) 2012-03-28 2013-03-25 Electric wire with terminal

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2012-075099 2012-03-28
JP2012075099 2012-03-28
JP2012-117479 2012-05-23
JP2012117494 2012-05-23
JP2012117479 2012-05-23
JP2012-117494 2012-05-23

Publications (1)

Publication Number Publication Date
WO2013146640A1 true WO2013146640A1 (en) 2013-10-03

Family

ID=49259891

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/058504 WO2013146640A1 (en) 2012-03-28 2013-03-25 Electric wire with terminal attached thereto

Country Status (2)

Country Link
JP (1) JP5704422B2 (en)
WO (1) WO2013146640A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105591219A (en) * 2014-11-07 2016-05-18 现代自动车株式会社 Wire terminal connector
CN107431283A (en) * 2015-04-16 2017-12-01 株式会社自动网络技术研究所 Terminal and the electric wire with terminal
WO2018198894A1 (en) * 2017-04-28 2018-11-01 株式会社オートネットワーク技術研究所 Connection structure for electric wires, and method for manufacturing harness
JP2019096568A (en) * 2017-11-28 2019-06-20 矢崎総業株式会社 Terminal-equipped electric wire and manufacturing method of terminal-equipped electric wire

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5838938B2 (en) * 2012-03-28 2016-01-06 株式会社オートネットワーク技術研究所 Electric wire with terminal

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0648173U (en) * 1992-12-04 1994-06-28 矢崎総業株式会社 Crimp structure for terminal fittings
JP2005302475A (en) * 2004-04-09 2005-10-27 Yazaki Corp Electric wire crimping method
JP2009117085A (en) * 2007-11-02 2009-05-28 Autonetworks Technologies Ltd Crimping terminal, electric wire with terminal, and manufacturing method of same
JP2010062097A (en) * 2008-09-05 2010-03-18 Sumitomo Wiring Syst Ltd Terminal metal fitting, and electric wire with terminal metal fitting
JP2010086797A (en) * 2008-09-30 2010-04-15 Sumitomo Wiring Syst Ltd Terminal metal fitting and electric wire with terminal metal fitting
JP2010198776A (en) * 2009-02-23 2010-09-09 Furukawa Electric Co Ltd:The Crimp terminal for aluminum wire, and crimping structure to aluminum wire using the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0648173U (en) * 1992-12-04 1994-06-28 矢崎総業株式会社 Crimp structure for terminal fittings
JP2005302475A (en) * 2004-04-09 2005-10-27 Yazaki Corp Electric wire crimping method
JP2009117085A (en) * 2007-11-02 2009-05-28 Autonetworks Technologies Ltd Crimping terminal, electric wire with terminal, and manufacturing method of same
JP2010062097A (en) * 2008-09-05 2010-03-18 Sumitomo Wiring Syst Ltd Terminal metal fitting, and electric wire with terminal metal fitting
JP2010086797A (en) * 2008-09-30 2010-04-15 Sumitomo Wiring Syst Ltd Terminal metal fitting and electric wire with terminal metal fitting
JP2010198776A (en) * 2009-02-23 2010-09-09 Furukawa Electric Co Ltd:The Crimp terminal for aluminum wire, and crimping structure to aluminum wire using the same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105591219A (en) * 2014-11-07 2016-05-18 现代自动车株式会社 Wire terminal connector
CN107431283A (en) * 2015-04-16 2017-12-01 株式会社自动网络技术研究所 Terminal and the electric wire with terminal
CN107431283B (en) * 2015-04-16 2020-02-07 株式会社自动网络技术研究所 Terminal and electric wire with terminal
WO2018198894A1 (en) * 2017-04-28 2018-11-01 株式会社オートネットワーク技術研究所 Connection structure for electric wires, and method for manufacturing harness
JP2018190533A (en) * 2017-04-28 2018-11-29 株式会社オートネットワーク技術研究所 Connection structure of wire, and manufacturing method for harness
JP2019096568A (en) * 2017-11-28 2019-06-20 矢崎総業株式会社 Terminal-equipped electric wire and manufacturing method of terminal-equipped electric wire
US10833427B2 (en) 2017-11-28 2020-11-10 Yazaki Corporation Terminal-equipped electric wire and method of manufacturing terminal-equipped electric wire

Also Published As

Publication number Publication date
JP5704422B2 (en) 2015-04-22
JPWO2013146640A1 (en) 2015-12-14

Similar Documents

Publication Publication Date Title
JP5682547B2 (en) Terminal fitting
CN107005014B (en) Terminal-equipped electric wire and method for manufacturing terminal-equipped electric wire
JP5704422B2 (en) Electric wire with terminal
CN110323581B (en) Electric wire with terminal
JP2020013633A (en) Terminal-equipped wire and manufacturing method thereof
JP2014032794A (en) Crimp jig
JP2010055937A (en) Terminal metal fitting and electric wire with terminal metal fitting
JP2015041509A (en) Conduction path and electric wire
JP5741409B2 (en) Terminal fittings and electric wires with terminals
JP2007059304A (en) Wire with terminal and its manufacturing method
JP2010055936A (en) Terminal metal fitting and electric wire with terminal metal fitting
JP2018085232A (en) Crimp terminal, wire with terminal, and method of manufacturing wire with terminal
JP2010067478A (en) Terminal fitting, and electric wire with terminal fitting
WO2018092597A1 (en) Crimped terminal and electric wire with terminal
JP5146759B2 (en) Terminal fitting, electric wire with terminal fitting, and manufacturing method of electric wire with terminal fitting
JP5376639B2 (en) Crimp terminal structure and harness
JP5088578B2 (en) Terminal fittings and electric wires with terminal fittings
JP5757226B2 (en) Terminal and electric wire with terminal
JP2011090804A (en) Electric wire with terminal fitting and method of manufacturing the same
JP2010073346A (en) Terminal fitting and electric wire with the same
JP5838938B2 (en) Electric wire with terminal
JP5151936B2 (en) Terminal fitting and manufacturing method thereof
KR102382776B1 (en) Stator assembling method for motor, stator structure for motor, and crimp terminal
JP5838939B2 (en) Electric wire with terminal
JP2017168400A (en) Terminal-attached electric cable and method for manufacturing the same

Legal Events

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

Ref document number: 13768890

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2014507849

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13768890

Country of ref document: EP

Kind code of ref document: A1