WO2010007843A1 - Terminal fitting and electrical wire with terminal fitting - Google Patents

Terminal fitting and electrical wire with terminal fitting Download PDF

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Publication number
WO2010007843A1
WO2010007843A1 PCT/JP2009/060469 JP2009060469W WO2010007843A1 WO 2010007843 A1 WO2010007843 A1 WO 2010007843A1 JP 2009060469 W JP2009060469 W JP 2009060469W WO 2010007843 A1 WO2010007843 A1 WO 2010007843A1
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WO
WIPO (PCT)
Prior art keywords
core wire
terminal fitting
recess
axial direction
hole
Prior art date
Application number
PCT/JP2009/060469
Other languages
French (fr)
Japanese (ja)
Inventor
正明 田端
憲知 岡村
Original Assignee
住友電装株式会社
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 住友電装株式会社 filed Critical 住友電装株式会社
Priority to JP2010520806A priority Critical patent/JP5099225B2/en
Publication of WO2010007843A1 publication Critical patent/WO2010007843A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • 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
    • H01R4/188—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 having an uneven wire-receiving surface to improve the contact
    • 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
    • H01R4/58—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 characterised by the form or material of the contacting members
    • H01R4/62—Connections between conductors of different materials; Connections between or with aluminium or steel-core aluminium conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/10—Sockets for co-operation with pins or blades
    • H01R13/11—Resilient sockets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
    • H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
    • H01R4/183—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section
    • H01R4/184—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion
    • H01R4/185—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping for cylindrical elongated bodies, e.g. cables having circular cross-section comprising a U-shaped wire-receiving portion combined with a U-shaped insulation-receiving portion

Definitions

  • the present invention relates to a terminal fitting and an electric wire with a terminal fitting.
  • an inner surface (contact surface with the core wire) of the crimping portion is formed with a recess (serration) having an elongated groove shape in a direction orthogonal to the axial direction of the core wire.
  • the present invention has been completed based on the above-described circumstances, and an object of the present invention is to improve electrical performance while securing the fixing force of the core wire.
  • the present invention provides a connection portion connected to a mating conductor, a crimp portion that is positioned behind the connection portion and is crimped so as to be held in the end of the core wire exposed to the covered electric wire, and the crimp portion
  • the terminal fitting specified above is crimped to the end of the core wire in the covered electric wire in which the core wire is covered with the covering.
  • the core wire When the core wire is compressed as the crimp portion is caulked, the core wire extends in the radial direction in addition to extending in the axial direction.
  • the so-called edge is present only along the opening edges before and after the groove in the elongated groove-shaped first recess, the oxide film can be broken by the edge in response to the axial extension of the core wire.
  • the edge of the core wire in the radial direction does not work and the oxide film cannot be broken.
  • the entire circumference of the hole edge can function as an edge in each hole, and in addition to the axial extension of the core, the radial direction of the core As for the spread of the oxide film, the edge works and the oxide film is broken.
  • the second concave portion in which a plurality of hole portions are arranged at intervals has a large edge length that can break the oxide film, that is, has an excellent ability to peel the oxide film.
  • the core wire when the core wire is compressed when the core wire is compressed, and the wire is pulled or bent after crimping, the core wire tends to move in the axial direction.
  • the edges of the front and rear opening edges are hooked to restrict the movement of the core wire, that is, to increase the fixing force of the core wire.
  • the present invention includes the second concave portion having excellent ability to peel off the oxide film and thus the contact resistance. Performance can be increased.
  • the first recesses and the second recesses are alternately arranged with an interval in the axial direction of the core wire. According to this, improvement in electrical performance and fixing force can be realized in a well-balanced manner over a wide range in the length direction of the core wire.
  • the first recesses and the second recesses are alternately arranged over at least four rows. According to this, an improvement in electrical performance and fixing force can be more reliably realized over a wide range in the length direction of the core wire.
  • the holes are formed so as to be shifted from each other by a half pitch. If the second recesses are also aligned, the movement in the axial direction can be restricted over a wide range on the peripheral surface of the core wire.
  • the first recesses and the second recesses are alternately arranged at intervals in the axial direction of the core wire.
  • Two or more of the first recesses and the second recesses are arranged in pairs with a gap in the axial direction of the core wire.
  • each hole edge of each hole part which comprises the said 2nd recessed part has comprised square shape, and at least one side of the hole edge is formed along the direction substantially orthogonal to the axial direction of the said core wire.
  • at least one of the front and rear hole edges functions to restrict the axial movement of the core wire.
  • Out of the hole edges of the hole a side located on the end side of the core wire is formed along a direction substantially orthogonal to the axial direction of the core wire.
  • a side located on the opposite side of the end of the core wire is formed along a direction substantially orthogonal to the axial direction of the core wire.
  • Each hole part which comprises a 2nd recessed part regulates effectively that a core wire is pulled on the opposite side, ie, back, to an edge part, and moves.
  • both sides of the core wire opposite to the end portion are formed along a direction substantially orthogonal to the axial direction of the core wire. .
  • Each hole part which comprises a 2nd recessed part can control both a core wire being pushed ahead and moving, and being pulled and moved back.
  • the core wire of the covered electric wire is formed of a plurality of aluminum wires made of aluminum or an aluminum alloy. This is particularly useful for aluminum wires that can easily form oxide films.
  • the electrical performance can be enhanced while securing the fixing force of the core wire.
  • FIG. 1 The side view which shows the electric wire with a terminal metal fitting which concerns on Embodiment 1 of this invention
  • Fig. 1 is an enlarged end sectional view taken along line II-II in Fig. 1.
  • Perspective view of female terminal fitting The top view which shows the expansion
  • FIGS. 1 A first embodiment of the present invention will be described with reference to FIGS.
  • the terminal metal fitting 20 (henceforth, female terminal metal fitting 20) is connected to the terminal of the aluminum electric wire 10. ing.
  • the aluminum electric wire 10 has a core wire 11 formed of a stranded wire formed by twisting a plurality of strands 12 (hereinafter referred to as aluminum strands 12) made of aluminum or an aluminum alloy, and the periphery of the core wire 11 is an insulating coating made of synthetic resin. 13 is a structure covered with 13.
  • the female terminal fitting 20 is formed by pressing a metal plate made of copper alloy or the like and having excellent electrical conductivity. As shown in FIG. 3, the female terminal fitting 20 is electrically connected to a mating male terminal fitting (not shown).
  • the wire barrel 25 and the insulation barrel 26 are provided behind the terminal connecting portion 21 having a substantially rectangular tube shape connected to the.
  • An elastic contact piece 23 is provided inside the terminal connection portion 21 so as to be folded back from the front edge of the bottom plate 22, and the tab of the mating male terminal fitting described above is connected to the terminal connection portion 21 from the front. By inserting and elastically contacting the elastic contact piece 23, the male terminal fitting and the female terminal fitting 20 are electrically connected.
  • the wire barrel 25 is an open barrel type, and as shown in the developed shape of FIG. 4, a pair of wide barrel pieces 25 ⁇ / b> A project from the left and right side edges of the bottom plate 22, and the female terminal fitting 20 is completed.
  • the pair of left and right barrel pieces 25A rise from the left and right side edges of the bottom plate 22 so as to face each other.
  • the wire barrel 25 is caulked and crimped to the end of the core wire 11 of the aluminum electric wire 10 described above, and, for example, as shown in FIG.
  • the outer periphery of the terminal is embraced from both the left and right sides so that it can be crimped into a so-called heart shape. Therefore, the wire barrel 25 and the bottom plate 22 correspond to the crimping portion 28 of the present invention.
  • FIG. 2 a cross section of the core wire 11 composed of a plurality of aluminum wires 12 is schematically shown as a whole.
  • the insulation barrel 26 is also of an open barrel type, and a pair of left and right barrel pieces 26A that are narrower and taller than the barrel pieces 25A on the wire barrel 25 side are similarly connected to each other from the left and right side edges of the bottom plate 22. It is formed so as to face each other.
  • the insulation barrel 26 is caulked and crimped to the remaining end of the insulating coating 13 of the aluminum electric wire 10.
  • both ends of the barrel pieces 26 ⁇ / b> A overlap each protruding end and the end of the insulating coating 13. In this way, the outer periphery of the frame is embraced from both the left and right sides so that it can be caulked into a so-called overlap type.
  • Concave portions 30 and 40 are formed on the inner surface of the above-described crimp portion 28 in the female terminal fitting 20, that is, on the contact surface 28 ⁇ / b> A that contacts the outer periphery of the core wire 11 of the aluminum electric wire 10.
  • the crimping portion 28 is formed by projecting a pair of barrel pieces 25A from the left and right side edges of the bottom plate 22, and in the developed shape, as shown in FIG. It is formed in a substantially rectangular shape that is long in the direction).
  • the direction of the center line X coincides with the axial direction of the core wire 11 of the aluminum electric wire 10 to be crimped to the crimp portion 28.
  • the first concave portion 30 is formed in an elongated groove shape continuously extending along a direction orthogonal to the center line X (hereinafter referred to as a width direction of the crimping portion 28), and has a length over almost the entire width of the crimping portion 28. have.
  • the groove width of the first recess 30 is about 10% of the length of the crimping portion 28 (the length in the center line X direction).
  • the second recess 40 has a shape in which a plurality of hole portions 41 are arranged in a line at predetermined intervals in the width direction of the crimping portion 28. That is, the first recess 30 is configured to continuously extend in the width direction of the crimping portion 28, whereas the second recess 40 is configured to extend intermittently in the width direction of the crimping portion 28 by the plurality of holes 41. Is done. Specifically, each hole 41 extends in the width direction of the crimping portion 28 shorter than the first recess 30 and is closed in a loop shape, and the length of one side is the groove width of the first recess 30 described above.
  • the twelve holes 41 shown in the figure have a posture in which the two opposite sides 42A are along the width direction of the crimping portion 28 (the other two opposite sides 42B are along the length direction of the crimping portion 28). Are arranged in a line at a predetermined interval with a dimension slightly shorter than the length of one side 42A, 42B of the hole 41.
  • the overall length of the second recess 40 is the same as the overall length of the first recess 30.
  • first recesses 30 and two second recesses 40 are provided, and the first recesses 30 and the second recesses 40 are along the center line X direction in almost the entire contact surface 28A of the crimping part 28.
  • the first recesses 30 are alternately arranged at a constant interval of about half the groove width.
  • the second recess 40 is arranged on the front end side (left side in FIG. 4) of the crimping portion 28, but the first recess 30 may be conversely arranged.
  • the female terminal fitting 20 of the present embodiment has the above-described structure, and is connected to the end of the aluminum electric wire 10 as follows. First, the end of the insulating coating 13 of the aluminum electric wire 10 is peeled off, and the end of the core wire 11 is exposed over a predetermined length. From this state, the female terminal fitting 20 is crimped and connected to the end of the aluminum electric wire 10 by the crimping device. Specifically, the crimping device is provided with an anvil and a crimper, and the core wire is connected to the wire barrel 25 of the female terminal fitting 20.
  • the center of the exposed portion of the terminal 11 is set to the insulation barrel 26 in a state where the terminal of the remaining insulating coating 13 is disposed, and both the barrels 25 and 26 are connected to the anvil and the crimper. It is clamped between them.
  • the insulation barrel 26 is caulked in an overlap type with respect to the end of the insulation coating 13, and the wire barrel 25 is caulked in a heart shape with respect to the end of the core wire 11.
  • a plurality of the aluminum electric wires 10 with the female terminal fittings 20 formed as described above are gathered to form a harness.
  • the female terminal fittings 20 at the terminals of the aluminum electric wires 10 are accommodated in the female housing, so that a predetermined vehicle
  • the female housing is fitted to the mating male housing, and the corresponding female terminal fitting 20 and the male terminal fitting are electrically connected to each other.
  • the aluminum electric wire 10 has a circumstance that an oxide film is relatively easily formed on the surface of the core wire 11 when the outside air touches the surface.
  • the core wire 11 is compressed, the core wire 11 extends in the axial direction and expands in the radial direction, and the meat portion on the surface side is pushed into the recesses 30 and 40. It is. Accordingly, the elongated groove-shaped first recess 30 receives the axial extension of the core wire 11, and the opening edges 31 ⁇ / b> A before and after the groove bite into the surface of the core wire 11 as edges to form an oxide film formed on the surface. Break.
  • the four sides 42 ⁇ / b> A and 42 ⁇ / b> B of the hole edge can function as edges, and the axial direction of the core wire 11.
  • the edge of the core wire 11 is expanded and the oxide film is broken.
  • the oxide film formed on the surface of the core wire 11 is peeled off to expose the new surface of the core wire 11, and the new surface and the contact surface 28 ⁇ / b> A of the crimp portion 28 come into contact with each other. Are electrically connected.
  • all of the four sides 42A and 42B of the hole edge of each hole portion 41 function as edges capable of breaking the oxide film.
  • the edge has a large length and is excellent in the ability to peel off the oxide film.
  • the oxide film peeling ability and thus the ability to reduce contact resistance are excellent, and as a result, the electrical performance can be enhanced.
  • the harness when the harness is pulled or bent in the state of being mounted as a harness, the aluminum electric wire 10, that is, the core wire 11 tends to move in the axial direction.
  • the recesses 30 and 40 function to restrict the movement of the core wire 11, i.e., to increase the fixing force of the core wire 11, particularly when the front and rear opening edges are hooked to the surface of the core wire 11.
  • the second concave portion 40 in which the plurality of hole portions 41 are arranged at intervals, there are no front and rear edges in at least the region between the adjacent hole portions 41. There are limits to the restrictions on movement.
  • the front and rear opening edges 31 ⁇ / b> A that function as edges continuously exist over substantially the entire width of the crimping portion 28, so that the circumferential direction of the surface of the core wire 11 is The movement in the axial direction can be restricted over a wide range, and the fixing force can be increased accordingly.
  • the three first recesses 30 having excellent fixing force are applied in half, so that compared to the case where all the six recesses are the second recesses 40, the total fixed Wearing power can be high.
  • the second concave portion 40 excellent in the ability to peel the oxide film and hence the contact resistance is provided.
  • the electrical performance can be enhanced while securing the fixing force.
  • the electrical performance and the fixing force can be improved over a wide range in the length direction of the core wire 11. Can be realized in a well-balanced manner.
  • the first concave portion 30 having a long and narrow groove shape in the width direction of the crimping portion 28 with respect to the contact surface 28A of the crimping portion 28 of the female terminal fitting 20 and the width of the crimping portion 28 are formed.
  • the second recesses 50 arranged in a line at a predetermined interval in the direction are arranged alternately at a certain interval along the center line direction of the crimping portion 28, in three points. As in the first embodiment, the second recess 50 is changed.
  • the shape of the hole 51 constituting the second recess 50 is a parallelogram.
  • the holes 51 are arranged in a line at a predetermined interval in a posture in which one pair of two sides 52 ⁇ / b> A facing each other is along the width direction of the crimping portion 28. Accordingly, the opposite two sides 52B of the other set take an oblique posture.
  • the length L of the front edge (rear edge) side 52A in the parallelogram is substantially equal to the groove width of the first concave portion 30, and the interval W between the front and rear sides 52A is also equal to that of the first concave portion 30. It is set approximately equal to the groove width.
  • the smaller diagonal x of the parallelogram is about 60 degrees.
  • the interval S between the adjacent hole portions 51 is about half of the length L of the side 52A of the front edge (rear edge) described above.
  • each hole 51 is formed in the form mutually shifted by a half pitch.
  • Each of the second recesses 50 is formed with at least twelve holes 51 that form a perfect parallelogram, and each of the second recesses 50 has the same length as that of the first recess 30. Has been.
  • the 2nd recessed part 50 of Embodiment 2 can also take the length of the edge which consists of the opening edge of each hole 51 large, and is excellent in the capability to peel an oxide film. And in addition to the 1st recessed part 30 excellent in the adhesivity of the core wire 11, in addition to having provided the 2nd recessed part 50 excellent in the ability to peel an oxide film by extension, and a contact resistance in this way, a core wire similarly The electrical performance can be improved while securing the fixing force 11.
  • the respective hole portions 51 are formed so as to be shifted from each other by a half pitch, so that the front side of the hole portions 51 constituting the second concave portion 50 in one row ( The rear side 52A overlaps the front side (rear side) side 52A of the hole 51 constituting the second recess 50 in the adjacent row in the width direction (circumferential direction when crimped).
  • the second recess 50 the movement in the axial direction can be restricted over a wide range on the peripheral surface of the core wire 11 by combining two adjacent rows. That is, the fixing force is further enhanced.
  • FIG. 7 shows Embodiment 3 of the present invention. This Embodiment 3 has shown another aspect in the case of forming a recessed part in the contact surface 28A of the crimping
  • FIG. 7 shows Embodiment 3 of the present invention. This Embodiment 3 has shown another aspect in the case of forming a recessed part in the contact surface 28A of the crimping
  • the first concave portion 30 having an elongated groove shape in the width direction of the crimping portion 28 illustrated in the first embodiment and a plurality of square hole portions 41 with respect to the contact surface 28A of the crimping portion 28 are the crimping portions.
  • the second concave portions 40 arranged in a line at a predetermined interval in the width direction of the 28 are arranged in pairs, and each of the two concave portions 40 is alternately arranged twice along the center line direction of the crimping portion 28. It has become a form.
  • the second concave portion 40 excellent in the ability to peel the oxide film and hence the contact resistance is provided. It is possible to improve the electrical performance while securing the fixing force, and to improve the electrical performance and the fixing force in a well-balanced manner over a wide range in the length direction of the core wire 11.
  • the present invention is not limited to the embodiments described with reference to the above description and drawings.
  • the first recess and the second recess may be provided only on the contact surface.
  • the first recess and the second recess may be formed in three rows or less.
  • each second recess 50 may be formed in a form in which the pitch is not shifted as in the first embodiment, that is, in a form in which the front and rear hole parts 51 do not overlap each other.
  • the shape of the hole constituting the second recess is not limited to the square or the parallelogram illustrated in the above embodiment, but a rectangle, a trapezoid, a rhombus, or a quadrangle that does not have sides parallel to each other is necessary. Depending on the situation, it can be an arbitrary square shape.
  • the case where the wire barrel provided on the female terminal fitting is caulked into a heart shape that embraces the outer periphery of the end of the core wire from both the left and right sides while the both barrel pieces abut each projecting end.
  • both barrel pieces may be caulked in a so-called overlap type in which the outer ends of the ends of the core wires are held from both the left and right sides while overlapping their protruding ends.
  • the female terminal fitting is exemplified as the terminal fitting to be connected to the terminal of the aluminum electric wire, but other terminals such as a male terminal fitting having a male tab or an LA terminal having an eyeball-shaped connecting portion. It may be a metal fitting.
  • the present invention can be applied to other electric wires such as copper electric wires in addition to the aluminum electric wires exemplified in the above embodiment.

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

Abstract

The electrical performance is increased while guaranteeing the adhesive strength of core wires. A female terminal fitting (20) is provided with a pressure-bonded part (28) that is pressure-bonded such that it encircles the terminal of an exposed core wire (11) in an aluminum wire (10). A first concave part (30) that extends to be long and thin in a direction approximately perpendicular to the axial direction of the core wire (11), and a second concave part (40) that extends shorter than the first concave part (30) in a direction approximately perpendicular to the axial direction of the core wire (11), and that has multiple holes (41) arranged in a line at intervals in the same direction, are formed in a contact surface (28A) that envelops the terminal of the core wire (11) in the pressure-bonded part (28).

Description

端子金具及び端子金具付き電線Terminal fittings and wires with terminal fittings

　本発明は、端子金具並びに端子金具付き電線に関する。
The present invention relates to a terminal fitting and an electric wire with a terminal fitting.

　従来より、電線の端末に接続される端子金具として、例えば特許文献１に記載されたものが知られている。この端子金具は、相手側導体と接続される接続部の後方に、被覆電線における露出された芯線の端末に抱き込むように圧着される圧着部が設けられた構造である。ここで、上記した芯線の表面に酸化被膜が形成されると、芯線と圧着部との間に酸化被膜が介在することとなり、それに起因して芯線と圧着部との間の接触抵抗が大きくなることが懸念される。
Conventionally, what was described in patent document 1, for example as a terminal metal fitting connected to the terminal of an electric wire is known. This terminal fitting has a structure in which a crimping portion to be crimped so as to be held in the end of the exposed core wire in the covered electric wire is provided behind the connection portion connected to the counterpart conductor. Here, when an oxide film is formed on the surface of the core wire described above, the oxide film is interposed between the core wire and the crimping portion, resulting in an increase in contact resistance between the core wire and the crimping portion. There is concern.

　そこで上記した従来の端子金具では、圧着部の内面（芯線との接触面）に、芯線の軸方向と直交する方向に細長い溝状をなす凹部（セレーション）が形成されている。この構造であると、電線の芯線に圧着部をかしめた際に芯線が圧縮されて延び、芯線の表面に形成された酸化被膜が、凹部の開口縁のいわゆるエッジにより破断されて剥離され、芯線の新生面と圧着部の内面とが接触する。これにより、電線と端子金具との間の接触抵抗を小さくでき、すなわち電気性能を高めることができる。

特開平１０－１２５３６２号公報
Therefore, in the above-described conventional terminal fitting, an inner surface (contact surface with the core wire) of the crimping portion is formed with a recess (serration) having an elongated groove shape in a direction orthogonal to the axial direction of the core wire. With this structure, when the crimping portion is caulked to the core wire of the electric wire, the core wire is compressed and extended, and the oxide film formed on the surface of the core wire is broken and peeled off by the so-called edge of the opening edge of the recess, and the core wire The new surface and the inner surface of the crimping part come into contact. Thereby, the contact resistance between an electric wire and a terminal metal fitting can be made small, ie, an electrical performance can be improved.

JP-A-10-125362

　しかしながら、芯線の素材として、アルミニウム等の酸化被膜が比較的形成されやすい金属を適用した場合には、上記のような方法では、酸化被膜を十分に剥離できるとは言えず、さらなる改良が切望されていた。
However, when a metal such as aluminum, which is relatively easy to form an oxide film, is applied as the core wire material, it cannot be said that the oxide film can be sufficiently removed by the above method, and further improvement is desired. It was.

　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、その目的は、芯線の固着力は確保した上で電気性能を高めるところにある。
The present invention has been completed based on the above-described circumstances, and an object of the present invention is to improve electrical performance while securing the fixing force of the core wire.

　本発明は、相手側導体と接続される接続部と、前記接続部の後方に位置し、被覆電線に露出された芯線の端末に抱き込むように圧着される圧着部と、前記圧着部における前記芯線の端末を包む接触面に形成され、前記芯線の軸方向と略直交する方向に細長く延びる第１凹部と、前記接触面に形成され、前記芯線の軸方向と略直交する方向に前記第１凹部よりも短く延び、かつ同方向に間隔を開けて複数並んで配される孔部を有する第２凹部とを備えるところに特徴を有する。
The present invention provides a connection portion connected to a mating conductor, a crimp portion that is positioned behind the connection portion and is crimped so as to be held in the end of the core wire exposed to the covered electric wire, and the crimp portion A first recess formed on a contact surface that encloses a terminal end of the core wire and extending in a direction substantially orthogonal to the axial direction of the core wire; and a first recess formed on the contact surface and substantially orthogonal to the axial direction of the core wire. It has a feature in that it includes a second recess that has a plurality of holes that extend shorter than the recess and are arranged side by side at intervals in the same direction.

　また、本発明の端子金具付き電線は、芯線を被覆で覆った被覆電線における前記芯線の端末に、上記に特定された端子金具が圧着されている。
In the electric wire with terminal fitting of the present invention, the terminal fitting specified above is crimped to the end of the core wire in the covered electric wire in which the core wire is covered with the covering.

　圧着部をかしめることに伴い芯線が圧縮された場合、芯線は軸方向に延びることに加えて径方向にも拡がる。ここで、細長い溝状の第１凹部では、いわゆるエッジが溝の前後の開口縁に沿って存在しているだけであるから、芯線の軸方向の延びを受けてエッジにより酸化被膜を破断できるものの、芯線の径方向の拡がりについてはエッジが利かなくて酸化被膜は破断できない。これに対し、複数の孔部が間隔を開けて並べられた第２凹部では、各孔部において、孔縁の全周がエッジとして機能でき、芯線の軸方向の延びに加えて芯線の径方向の拡がりについてもエッジが利いて酸化被膜が破断される。端的には、複数の孔部を間隔を開けて並べた第２凹部は、酸化被膜を破断できるエッジの長さが大きく取れ、すなわち酸化被膜を剥離する能力に優れていると言える。
When the core wire is compressed as the crimp portion is caulked, the core wire extends in the radial direction in addition to extending in the axial direction. Here, since the so-called edge is present only along the opening edges before and after the groove in the elongated groove-shaped first recess, the oxide film can be broken by the edge in response to the axial extension of the core wire. The edge of the core wire in the radial direction does not work and the oxide film cannot be broken. On the other hand, in the second recess in which a plurality of holes are arranged at intervals, the entire circumference of the hole edge can function as an edge in each hole, and in addition to the axial extension of the core, the radial direction of the core As for the spread of the oxide film, the edge works and the oxide film is broken. In short, it can be said that the second concave portion in which a plurality of hole portions are arranged at intervals has a large edge length that can break the oxide film, that is, has an excellent ability to peel the oxide film.

　一方、係る凹部は、芯線が圧縮された際に芯線が入り込み、圧着後に電線が引っ張られたり屈曲されることに伴って、芯線が軸方向に移動しようとする場合に、凹部の開口縁、特に前後の開口縁のエッジが引っ掛かりとなって芯線の移動を規制し、すなわち芯線の固着力を高めることに機能する。
On the other hand, when the core wire is compressed when the core wire is compressed, and the wire is pulled or bent after crimping, the core wire tends to move in the axial direction. The edges of the front and rear opening edges are hooked to restrict the movement of the core wire, that is, to increase the fixing force of the core wire.

　この場合、第２凹部では、少なくとも隣り合う孔部の間の領域においては前後のエッジが存在しないため、その分芯線の軸方向の移動の規制に限界があり、すなわち固着力に限界がある。それに対し、細長い溝状の第１凹部では、エッジとして機能する前後の開口縁が、幅方向（芯線の軸方向と略直交する方向）に連続して存在するから、芯線の周面における広い範囲に亘って軸方向の移動を規制でき、それだけ固着力は高いものとなる。
In this case, since there are no front and rear edges in the second recess, at least in the region between the adjacent holes, there is a limit to the restriction of movement of the core wire in the axial direction, that is, the fixing force is limited. On the other hand, in the elongated groove-shaped first concave portion, the front and rear opening edges that function as edges continuously exist in the width direction (a direction substantially orthogonal to the axial direction of the core wire), and thus a wide range on the peripheral surface of the core wire Thus, the movement in the axial direction can be restricted, and the fixing force is increased accordingly.

　本発明は、芯線の固着力に優れた第１凹部に加えて、酸化被膜の剥離能力ひいては接触抵抗を減少させる能力に優れた第２凹部を備えたから、芯線の固着力は確保した上で電気性能を高めることができる。
In addition to the first concave portion having excellent core wire fixing strength, the present invention includes the second concave portion having excellent ability to peel off the oxide film and thus the contact resistance. Performance can be increased.

　なお、以下のような構成としてもよい。

　（１）前記第１凹部と前記第２凹部とは、前記芯線の軸方向に間隔を開けて交互に配されている。これによれば、電気性能と固着力の向上を、芯線の長さ方向における広範囲に亘ってバランス良く実現することができる。

　（２）前記第１凹部と前記第２凹部とは、少なくとも４列以上に亘って交互に配されている。これによれば、電気性能と固着力の向上を、芯線の長さ方向における広範囲に亘ってより確実に実現することができる。
In addition, it is good also as following structures.

(1) The first recesses and the second recesses are alternately arranged with an interval in the axial direction of the core wire. According to this, improvement in electrical performance and fixing force can be realized in a well-balanced manner over a wide range in the length direction of the core wire.

(2) The first recesses and the second recesses are alternately arranged over at least four rows. According to this, an improvement in electrical performance and fixing force can be more reliably realized over a wide range in the length direction of the core wire.

　（３）隣り合った前記第２凹部の列同士では、それぞれの孔部が互いに半ピッチずれた形態で形成されている。第２凹部についても二列を合わせれば、芯線の周面における広い範囲に亘って軸方向の移動を規制することができる。

　（４）前記第１凹部と前記第２凹部とは、１本ずつが前記芯線の軸方向に間隔を開けて交互に配されている。

　（５）前記第１凹部と前記第２凹部とは、それぞれ２本以上ずつが１組となって前記芯線の軸方向に間隔を開けて交互に配されている。
(3) In adjacent rows of the second recesses, the holes are formed so as to be shifted from each other by a half pitch. If the second recesses are also aligned, the movement in the axial direction can be restricted over a wide range on the peripheral surface of the core wire.

(4) The first recesses and the second recesses are alternately arranged at intervals in the axial direction of the core wire.

(5) Two or more of the first recesses and the second recesses are arranged in pairs with a gap in the axial direction of the core wire.

　（６）前記第２凹部を構成する各孔部の孔縁が四角形状をなし、その孔縁の少なくとも一辺が、前記芯線の軸方向と略直交する方向に沿って形成されている。第２凹部を構成する各孔部において、少なくとも前後いずれか一方の孔縁が、芯線の軸方向の移動を規制することに機能する。

　（７）前記孔部の孔縁のうち、前記芯線の端部側に位置する辺が、前記芯線の軸方向と略直交する方向に沿って形成されている。第２凹部を構成する各孔部は、芯線が端部側すなわち前方に押されて移動することを有効に規制する。

　（８）前記孔部の孔縁のうち、前記芯線の端部と反対側に位置する辺が、前記芯線の軸方向と略直交する方向に沿って形成されている。第２凹部を構成する各孔部は、芯線が端部とは反対側すなわち後方に引かれて移動することを有効に規制する。

　（９）前記孔部の孔縁のうち、前記芯線の端部側と同端部とは反対側の両位置の辺が、前記芯線の軸方向と略直交する方向に沿って形成されている。第２凹部を構成する各孔部は、芯線が前方に押されて移動することと、後方に引かれて移動することの両方を規制することができる。
(6) The hole edge of each hole part which comprises the said 2nd recessed part has comprised square shape, and at least one side of the hole edge is formed along the direction substantially orthogonal to the axial direction of the said core wire. In each hole constituting the second recess, at least one of the front and rear hole edges functions to restrict the axial movement of the core wire.

(7) Out of the hole edges of the hole, a side located on the end side of the core wire is formed along a direction substantially orthogonal to the axial direction of the core wire. Each hole part which comprises a 2nd recessed part restrict | limits that a core wire is pushed to the edge part side, ie, the front, and moves.

(8) Of the hole edges of the hole, a side located on the opposite side of the end of the core wire is formed along a direction substantially orthogonal to the axial direction of the core wire. Each hole part which comprises a 2nd recessed part regulates effectively that a core wire is pulled on the opposite side, ie, back, to an edge part, and moves.

(9) Out of the hole edges of the hole portion, both sides of the core wire opposite to the end portion are formed along a direction substantially orthogonal to the axial direction of the core wire. . Each hole part which comprises a 2nd recessed part can control both a core wire being pushed ahead and moving, and being pulled and moved back.

　（１０）前記被覆電線の前記芯線が、アルミニウム又はアルミニウム合金からなる複数本のアルミ素線により形成されている。酸化被膜ができやすいアルミ電線について、特に有用となる。
(10) The core wire of the covered electric wire is formed of a plurality of aluminum wires made of aluminum or an aluminum alloy. This is particularly useful for aluminum wires that can easily form oxide films.

　本発明によれば、芯線の固着力は確保した上で電気性能を高めることができる。
According to the present invention, the electrical performance can be enhanced while securing the fixing force of the core wire.

本発明の実施形態１に係る端子金具付き電線を示す側面図The side view which shows the electric wire with a terminal metal fitting which concerns on Embodiment 1 of this invention 図１のＩＩ－ＩＩ線で切断した拡大端断面図Fig. 1 is an enlarged end sectional view taken along line II-II in Fig. 1. 雌端子金具の斜視図Perspective view of female terminal fitting 雌端子金具のバレル形成部付近の展開状態を示す平面図The top view which shows the expansion | deployment state of the barrel formation part vicinity of a female terminal metal fitting 実施形態２に係る雌端子金具のバレル形成部付近の展開状態を示す平面図The top view which shows the expansion | deployment state of the barrel formation part vicinity of the female terminal metal fitting which concerns on Embodiment 2. FIG. 図５の部分拡大図Partial enlarged view of FIG. 実施形態３に係る雌端子金具のバレル形成部付近の展開状態を示す平面図The top view which shows the expansion | deployment state of the barrel formation part vicinity of the female terminal metal fitting which concerns on Embodiment 3. FIG.

　１０…アルミ電線（被覆電線）

　１１…芯線

　１２…アルミ素線

　１３…絶縁被覆（被覆）

　２０…雌端子金具（端子金具）

　２１…接続部

　２２…底板

　２５…ワイヤバレル

　２５Ａ…バレル片

　２８…圧着部

　２８Ａ…接触面

　３０…第１凹部

　３１Ａ…（第１凹部３０の）前後の開口縁

　４０…第２凹部

　４１…孔部

　４２Ａ，４２Ｂ…（孔部４１の）孔縁の辺

　５０…第２凹部

　５１…孔部

　５２Ａ，５２Ｂ…（孔部５１の）孔縁の辺
10 ... Aluminum wire (covered wire)

11 ... Core wire

12 ... Aluminum wire

13 ... Insulation coating (coating)

20 ... Female terminal fitting (terminal fitting)

21 ... Connection part

22 ... Bottom plate

25 ... Wire barrel

25A ... barrel piece

28 ... Crimping part

28A ... contact surface

30 ... 1st recessed part

31A ... Front and rear opening edges (of the first recess 30)

40 ... second recess

41 ... hole

42A, 42B ... side of hole edge (of hole 41)

50 ... second recess

51 ... hole

52A, 52B ... side of hole edge (of hole 51)

　以下、本発明の実施形態を添付図面に基づいて説明する。

　＜実施形態１＞

　本発明の実施形態１を図１ないし図４によって説明する。

　本実施形態では、アルミ電線１０に適用した場合を例示しており、図１に示すように、アルミ電線１０の端末には、雌側の端子金具２０（以下、雌端子金具２０）が接続されている。
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

<Embodiment 1>

A first embodiment of the present invention will be described with reference to FIGS.

In this embodiment, the case where it applies to the aluminum electric wire 10 is illustrated, and as shown in FIG. 1, the terminal metal fitting 20 (henceforth, female terminal metal fitting 20) is connected to the terminal of the aluminum electric wire 10. ing.

　アルミ電線１０は、アルミニウムまたはアルミニウム合金製の素線１２（以下、アルミ素線１２）を複数本を撚り合せた撚り線によって芯線１１が形成され、この芯線１１の回りが合成樹脂製の絶縁被覆１３で覆われた構造である。
The aluminum electric wire 10 has a core wire 11 formed of a stranded wire formed by twisting a plurality of strands 12 (hereinafter referred to as aluminum strands 12) made of aluminum or an aluminum alloy, and the periphery of the core wire 11 is an insulating coating made of synthetic resin. 13 is a structure covered with 13.

　雌端子金具２０は、銅合金等からなる導電性に優れた金属板をプレス加工することで形成されており、図３にも示すように、相手の雄端子金具（図示せず）と電気的に接続される略角筒形をなす端子接続部２１の後方に、ワイヤバレル２５とインシュレーションバレル２６とが設けられた構造である。
The female terminal fitting 20 is formed by pressing a metal plate made of copper alloy or the like and having excellent electrical conductivity. As shown in FIG. 3, the female terminal fitting 20 is electrically connected to a mating male terminal fitting (not shown). The wire barrel 25 and the insulation barrel 26 are provided behind the terminal connecting portion 21 having a substantially rectangular tube shape connected to the.

　端子接続部２１の内部には、底板２２の前縁から折り返されるようにして弾性接触片２３が設けられており、同端子接続部２１に対して上記した相手の雄端子金具のタブが前方から挿入され、弾性接触片２３と弾性的に接触することにより、雄端子金具と雌端子金具２０とが電気的に接続されるようになっている。
An elastic contact piece 23 is provided inside the terminal connection portion 21 so as to be folded back from the front edge of the bottom plate 22, and the tab of the mating male terminal fitting described above is connected to the terminal connection portion 21 from the front. By inserting and elastically contacting the elastic contact piece 23, the male terminal fitting and the female terminal fitting 20 are electrically connected.

　ワイヤバレル２５は、オープンバレル形式であって、図４の展開形状にも示すように、底板２２の左右の側縁から一対の幅広のバレル片２５Ａが張り出し形成され、雌端子金具２０の完成時には、左右一対のバレル片２５Ａが、底板２２の左右の側縁から互いに対向するように立ち上った形態となる。ワイヤバレル２５は、上記したアルミ電線１０の芯線１１の端末にかしめ圧着されるものであって、例えば、図２に示すように、両バレル片２５Ａがそれぞれの突出端を突き合わせつつ、芯線１１の端末の外周を左右両側から抱き込むようにして、いわゆるハート型にかしめられるようになっている。したがって、ワイヤバレル２５と底板２２とが、本発明の圧着部２８に相当する。なお、図２においては、複数のアルミ素線１２からなる芯線１１の断面を、全体として模式的に図示している。
The wire barrel 25 is an open barrel type, and as shown in the developed shape of FIG. 4, a pair of wide barrel pieces 25 </ b> A project from the left and right side edges of the bottom plate 22, and the female terminal fitting 20 is completed. The pair of left and right barrel pieces 25A rise from the left and right side edges of the bottom plate 22 so as to face each other. The wire barrel 25 is caulked and crimped to the end of the core wire 11 of the aluminum electric wire 10 described above, and, for example, as shown in FIG. The outer periphery of the terminal is embraced from both the left and right sides so that it can be crimped into a so-called heart shape. Therefore, the wire barrel 25 and the bottom plate 22 correspond to the crimping portion 28 of the present invention. In FIG. 2, a cross section of the core wire 11 composed of a plurality of aluminum wires 12 is schematically shown as a whole.

　インシュレーションバレル２６は、同じくオープンバレル形式であって、ワイヤバレル２５側のバレル片２５Ａよりも幅狭で逆に背が高い左右一対のバレル片２６Ａが、同じく底板２２の左右の側縁から互いに対向するようにして立ち上がり形成されている。このインシュレーションバレル２６は、アルミ電線１０の残された絶縁被覆１３の端末にかしめ圧着されるものであって、例えば、両バレル片２６Ａがそれぞれの突出端を重ね合わせつつ、絶縁被覆１３の端末の外周を左右両側から抱き込むようにして、いわゆるオーバラップ型にかしめられるようになっている。
The insulation barrel 26 is also of an open barrel type, and a pair of left and right barrel pieces 26A that are narrower and taller than the barrel pieces 25A on the wire barrel 25 side are similarly connected to each other from the left and right side edges of the bottom plate 22. It is formed so as to face each other. The insulation barrel 26 is caulked and crimped to the remaining end of the insulating coating 13 of the aluminum electric wire 10. For example, both ends of the barrel pieces 26 </ b> A overlap each protruding end and the end of the insulating coating 13. In this way, the outer periphery of the frame is embraced from both the left and right sides so that it can be caulked into a so-called overlap type.

　さて、雌端子金具２０における上記した圧着部２８の内面、すなわちアルミ電線１０の芯線１１の外周と接触する接触面２８Ａには、凹部３０，４０が形成されている。
Concave portions 30 and 40 are formed on the inner surface of the above-described crimp portion 28 in the female terminal fitting 20, that is, on the contact surface 28 </ b> A that contacts the outer periphery of the core wire 11 of the aluminum electric wire 10.

　圧着部２８は、底板２２の左右の側縁から一対のバレル片２５Ａが張り出し形成されたものであって、展開形状では図４に示すように、中心線Ｘと直交する方向（同図の上下方向）に長い略長方形状に形成されている。なお、上記の中心線Ｘの方向は、当該圧着部２８に圧着されるアルミ電線１０の芯線１１の軸方向と一致する。
The crimping portion 28 is formed by projecting a pair of barrel pieces 25A from the left and right side edges of the bottom plate 22, and in the developed shape, as shown in FIG. It is formed in a substantially rectangular shape that is long in the direction). The direction of the center line X coincides with the axial direction of the core wire 11 of the aluminum electric wire 10 to be crimped to the crimp portion 28.

　圧着部２８の接触面２８Ａに形成される凹部としては、第１凹部３０と第２凹部４０との２種類が設けられている。
As the recesses formed on the contact surface 28 </ b> A of the crimping part 28, two types of first recesses 30 and second recesses 40 are provided.

　第１凹部３０は、中心線Ｘと直交する方向（以下、圧着部２８の幅方向という。）に沿って連続して延びた細長い溝状に形成され、圧着部２８のほぼ全幅に亘る長さを有している。第１凹部３０の溝幅は、圧着部２８の長さ（中心線Ｘ方向の長さ）の１割弱程度である。
The first concave portion 30 is formed in an elongated groove shape continuously extending along a direction orthogonal to the center line X (hereinafter referred to as a width direction of the crimping portion 28), and has a length over almost the entire width of the crimping portion 28. have. The groove width of the first recess 30 is about 10% of the length of the crimping portion 28 (the length in the center line X direction).

　第２凹部４０は、複数の孔部４１が圧着部２８の幅方向に所定間隔を開けて一列に並んで配された形状である。つまり、第１凹部３０は圧着部２８の幅方向に連続して延びる形態とされるのに対し、第２凹部４０は複数の孔部４１によって圧着部２８の幅方向に断続して延びる形態とされる。詳細には、各孔部４１は、圧着部２８の幅方向に第１凹部３０よりも短く延びてループ状に閉じられた形態とされ、一辺の長さが上記した第１凹部３０の溝幅に匹敵する正方形状をなしている。ここでは、図示１２個の孔部４１が、互いに対向する二辺４２Ａを圧着部２８の幅方向に沿った姿勢（もう一方の互いに対向した二辺４２Ｂは圧着部２８の長さ方向に沿っている）において、同孔部４１の一辺４２Ａ，４２Ｂの長さよりも少し短い寸法の一定間隔を開けて一列に並んで配されている。第２凹部４０の全長は、第１凹部３０の全長と同寸法とされている。
The second recess 40 has a shape in which a plurality of hole portions 41 are arranged in a line at predetermined intervals in the width direction of the crimping portion 28. That is, the first recess 30 is configured to continuously extend in the width direction of the crimping portion 28, whereas the second recess 40 is configured to extend intermittently in the width direction of the crimping portion 28 by the plurality of holes 41. Is done. Specifically, each hole 41 extends in the width direction of the crimping portion 28 shorter than the first recess 30 and is closed in a loop shape, and the length of one side is the groove width of the first recess 30 described above. It has a square shape comparable to Here, the twelve holes 41 shown in the figure have a posture in which the two opposite sides 42A are along the width direction of the crimping portion 28 (the other two opposite sides 42B are along the length direction of the crimping portion 28). Are arranged in a line at a predetermined interval with a dimension slightly shorter than the length of one side 42A, 42B of the hole 41. The overall length of the second recess 40 is the same as the overall length of the first recess 30.

　上記した第１凹部３０と第２凹部４０とが３本ずつ備えられ、第１凹部３０と第２凹部４０とは、圧着部２８の接触面２８Ａのほぼ全域において、中心線Ｘ方向に沿い、例えば第１凹部３０の溝幅の半分程度の一定間隔を開けて交互に配されている。本実施形態では、圧着部２８の前端側（図４の左側）に第２凹部４０が配されているが、逆に第１凹部３０であってもよい。
Three first recesses 30 and two second recesses 40 are provided, and the first recesses 30 and the second recesses 40 are along the center line X direction in almost the entire contact surface 28A of the crimping part 28. For example, the first recesses 30 are alternately arranged at a constant interval of about half the groove width. In the present embodiment, the second recess 40 is arranged on the front end side (left side in FIG. 4) of the crimping portion 28, but the first recess 30 may be conversely arranged.

　本実施形態の雌端子金具２０は上記のような構造であって、アルミ電線１０の端末に以下のようにして接続される。

　まず、アルミ電線１０の絶縁被覆１３の端末が皮剥きされて、芯線１１の端末が所定長さに亘って露出状態とされる。この状態から圧着装置によって、アルミ電線１０の端末に雌端子金具２０が圧着接続され、詳細には圧着装置にはアンビルとクリンパとが設けられ、雌端子金具２０のワイヤバレル２５に対して、芯線１１の端末の露出部分の中央部が、またインシュレーションバレル２６に対して、残された絶縁被覆１３の端末がそれぞれ配された状態でセットされ、両バレル２５，２６は、アンビルとクリンパとの間で挟圧されてかしめられる。これにより、インシュレーションバレル２６は、絶縁被覆１３の端末に対してオーバラップ型にかしめられ、ワイヤバレル２５は、芯線１１の端末に対して、ハート型にかしめられる。以上により、アルミ電線１０の端末に雌端子金具２０を接続する作業が終了する。
The female terminal fitting 20 of the present embodiment has the above-described structure, and is connected to the end of the aluminum electric wire 10 as follows.

First, the end of the insulating coating 13 of the aluminum electric wire 10 is peeled off, and the end of the core wire 11 is exposed over a predetermined length. From this state, the female terminal fitting 20 is crimped and connected to the end of the aluminum electric wire 10 by the crimping device. Specifically, the crimping device is provided with an anvil and a crimper, and the core wire is connected to the wire barrel 25 of the female terminal fitting 20. The center of the exposed portion of the terminal 11 is set to the insulation barrel 26 in a state where the terminal of the remaining insulating coating 13 is disposed, and both the barrels 25 and 26 are connected to the anvil and the crimper. It is clamped between them. As a result, the insulation barrel 26 is caulked in an overlap type with respect to the end of the insulation coating 13, and the wire barrel 25 is caulked in a heart shape with respect to the end of the core wire 11. Thus, the operation for connecting the female terminal fitting 20 to the end of the aluminum electric wire 10 is completed.

　上記のように形成された雌端子金具２０付きのアルミ電線１０が、複数本纏められてハーネスが構成され、例えば当該アルミ電線１０の端末の雌端子金具２０が雌ハウジングに収容され、車両の所定箇所に配線されて、同雌ハウジングが相手の雄ハウジングと嵌合され、対応する雌端子金具２０と雄端子金具同士が電気的に接続されるところとなる。
A plurality of the aluminum electric wires 10 with the female terminal fittings 20 formed as described above are gathered to form a harness. For example, the female terminal fittings 20 at the terminals of the aluminum electric wires 10 are accommodated in the female housing, so that a predetermined vehicle The female housing is fitted to the mating male housing, and the corresponding female terminal fitting 20 and the male terminal fitting are electrically connected to each other.

　ここでアルミ電線１０は、芯線１１の表面に外気が触れることで、その表面に酸化被膜が比較的形成されやすいという事情がある。

　上記した圧着工程においてワイヤバレル２５がかしめられると、芯線１１が圧縮されて、芯線１１は軸方向に延びまた径方向にも拡がりつつ、表面側の肉の部分が各凹部３０，４０内に押し込まれる。これに伴い、細長い溝状の第１凹部３０では、芯線１１の軸方向の延びを受けて、溝の前後の開口縁３１Ａがエッジとして芯線１１の表面に食い込み、表面に形成された酸化被膜を破断する。
Here, the aluminum electric wire 10 has a circumstance that an oxide film is relatively easily formed on the surface of the core wire 11 when the outside air touches the surface.

When the wire barrel 25 is caulked in the above-described crimping process, the core wire 11 is compressed, the core wire 11 extends in the axial direction and expands in the radial direction, and the meat portion on the surface side is pushed into the recesses 30 and 40. It is. Accordingly, the elongated groove-shaped first recess 30 receives the axial extension of the core wire 11, and the opening edges 31 </ b> A before and after the groove bite into the surface of the core wire 11 as edges to form an oxide film formed on the surface. Break.

　また、複数（図示１２個）の孔部４１が間隔を開けて並べられた第２凹部４０では、各孔部４１において、孔縁の四辺４２Ａ，４２Ｂがエッジとして機能でき、芯線１１の軸方向の延びに加えて芯線１１の径方向の拡がりについてもエッジが利いて酸化被膜が破断される。
Further, in the second concave portion 40 in which a plurality (twelve in the figure) of the hole portions 41 are arranged at intervals, in each hole portion 41, the four sides 42 </ b> A and 42 </ b> B of the hole edge can function as edges, and the axial direction of the core wire 11. In addition to the extension, the edge of the core wire 11 is expanded and the oxide film is broken.

　以上により、芯線１１の表面に形成された酸化被膜が剥がされて、芯線１１の新生面が露出され、この新生面と圧着部２８の接触面２８Ａとが接触することにより、芯線１１と圧着部２８とが電気的に接続される。
As described above, the oxide film formed on the surface of the core wire 11 is peeled off to expose the new surface of the core wire 11, and the new surface and the contact surface 28 </ b> A of the crimp portion 28 come into contact with each other. Are electrically connected.

　ここで、特筆すべきは、複数の孔部４１を間隔を開けて並べた第２凹部４０では、各孔部４１の孔縁の四辺４２Ａ，４２Ｂのすべてが酸化被膜を破断可能なエッジとして機能でき、端的にはエッジの長さが大きく取れて、酸化被膜を剥離する能力に優れていると言える。
Here, it should be noted that in the second recess 40 in which the plurality of hole portions 41 are arranged at intervals, all of the four sides 42A and 42B of the hole edge of each hole portion 41 function as edges capable of breaking the oxide film. In short, it can be said that the edge has a large length and is excellent in the ability to peel off the oxide film.

　合計６本の凹部３０，４０のうち、上記のように酸化被膜の剥離能力に優れた第２凹部４０を半分の３本適用したから、６本すべてを第１凹部３０とした場合と比較すると、酸化被膜の剥離能力ひいては接触抵抗を減少させる能力に優れたものとなり、ひいては電気性能を高めることができる。
Compared with the case where all six of the six recesses 30 and 40 are used as the first recesses 30 because the three second recesses 40 that are excellent in the ability to peel off the oxide film as described above are applied. In addition, the oxide film peeling ability and thus the ability to reduce contact resistance are excellent, and as a result, the electrical performance can be enhanced.

　一方、ハーネス化されて搭載された状態において、ハーネスが引っ張られたり屈曲されたりすると、アルミ電線１０すなわち芯線１１が軸方向に移動しようとする。この際、凹部３０，４０は、特に前後の開口縁がエッジとして芯線１１の表面に対する引っ掛かりとなって芯線１１の移動を規制し、すなわち芯線１１の固着力を高めることに機能する。
On the other hand, when the harness is pulled or bent in the state of being mounted as a harness, the aluminum electric wire 10, that is, the core wire 11 tends to move in the axial direction. At this time, the recesses 30 and 40 function to restrict the movement of the core wire 11, i.e., to increase the fixing force of the core wire 11, particularly when the front and rear opening edges are hooked to the surface of the core wire 11.

　ここで、複数の孔部４１が間隔を開けて並べられた第２凹部４０では、少なくとも隣り合う孔部４１の間の領域においては前後のエッジが存在しないため、その分芯線１１の軸方向の移動の規制に限界ができる。それに対し、細長い溝状の第１凹部３０では、エッジとして機能する前後の開口縁３１Ａが、圧着部２８のほぼ全幅に亘って連続して存在しているから、芯線１１の表面の周方向における広い範囲に亘って軸方向の移動を規制でき、それだけ固着力は高いものにできる。
Here, in the second concave portion 40 in which the plurality of hole portions 41 are arranged at intervals, there are no front and rear edges in at least the region between the adjacent hole portions 41. There are limits to the restrictions on movement. On the other hand, in the elongated groove-shaped first recess 30, the front and rear opening edges 31 </ b> A that function as edges continuously exist over substantially the entire width of the crimping portion 28, so that the circumferential direction of the surface of the core wire 11 is The movement in the axial direction can be restricted over a wide range, and the fixing force can be increased accordingly.

　このように、６本の凹部３０，４０のうち、固着力に優れた第１凹部３０を半分の３本適用したから、６本すべてを第２凹部４０とした場合と比較すると、トータルした固着力は高くできる。
Thus, among the six recesses 30 and 40, the three first recesses 30 having excellent fixing force are applied in half, so that compared to the case where all the six recesses are the second recesses 40, the total fixed Wearing power can be high.

　すなわち本実施形態によれば、芯線１１の固着力に優れた第１凹部３０に加えて、酸化被膜の剥離能力ひいては接触抵抗を減少させる能力に優れた第２凹部４０を備えたから、芯線１１の固着力は確保した上で電気性能を高めることができる。しかも、第１凹部３０と第２凹部４０とは、芯線１１の軸方向に間隔を開けて交互に配する構造としたから、電気性能と固着力の向上を、芯線１１の長さ方向における広範囲に亘ってバランス良く実現することができる。
That is, according to the present embodiment, in addition to the first concave portion 30 excellent in the fixing strength of the core wire 11, the second concave portion 40 excellent in the ability to peel the oxide film and hence the contact resistance is provided. The electrical performance can be enhanced while securing the fixing force. Moreover, since the first recesses 30 and the second recesses 40 are alternately arranged in the axial direction of the core wire 11, the electrical performance and the fixing force can be improved over a wide range in the length direction of the core wire 11. Can be realized in a well-balanced manner.

　＜実施形態２＞

　次に、本発明の実施形態２を図５及び図６によって説明する。

　この実施形態２では、雌端子金具２０の圧着部２８の接触面２８Ａに対し、圧着部２８の幅方向に細長い溝状をなす第１凹部３０と、複数の孔部５１が圧着部２８の幅方向に所定間隔を開けて一列に並んで配された第２凹部５０とが、３本ずつ、圧着部２８の中心線方向に沿って一定間隔を開けて交互に配されている点は、上記の実施形態１と同様であるが、第２凹部５０について変更が加えられている。
<Embodiment 2>

Next, a second embodiment of the present invention will be described with reference to FIGS.

In the second embodiment, the first concave portion 30 having a long and narrow groove shape in the width direction of the crimping portion 28 with respect to the contact surface 28A of the crimping portion 28 of the female terminal fitting 20 and the width of the crimping portion 28 are formed. The second recesses 50 arranged in a line at a predetermined interval in the direction are arranged alternately at a certain interval along the center line direction of the crimping portion 28, in three points. As in the first embodiment, the second recess 50 is changed.

　まず、第２凹部５０を構成する孔部５１の形状が、平行四辺形とされている。この孔部５１が、一方の組の互いに対向した二辺５２Ａが圧着部２８の幅方向に沿った姿勢において、所定間隔を開けて一列に並んで配されている。したがって、他方の組の互いに対向した二辺５２Ｂは、斜め姿勢を取っている。
First, the shape of the hole 51 constituting the second recess 50 is a parallelogram. The holes 51 are arranged in a line at a predetermined interval in a posture in which one pair of two sides 52 </ b> A facing each other is along the width direction of the crimping portion 28. Accordingly, the opposite two sides 52B of the other set take an oblique posture.

　より詳細には、平行四辺形における前縁（後縁）の辺５２Ａの長さＬが、第１凹部３０の溝幅にほぼ等しく、また前後の辺５２Ａの間隔Ｗも、第１凹部３０の溝幅にほぼ等しく設定されている。また、同平行四辺形の小さい方の対角ｘが、約６０度とされている。さらに、隣り合う孔部５１の間隔Ｓは、上記した前縁（後縁）の辺５２Ａの長さＬの半分程度である。
More specifically, the length L of the front edge (rear edge) side 52A in the parallelogram is substantially equal to the groove width of the first concave portion 30, and the interval W between the front and rear sides 52A is also equal to that of the first concave portion 30. It is set approximately equal to the groove width. The smaller diagonal x of the parallelogram is about 60 degrees. Furthermore, the interval S between the adjacent hole portions 51 is about half of the length L of the side 52A of the front edge (rear edge) described above.

　また、隣り合った第２凹部５０の列同士では、それぞれの孔部５１が互いに半ピッチずれた形態で形成されている。
Moreover, in the row | line | column of the adjacent 2nd recessed part 50, each hole 51 is formed in the form mutually shifted by a half pitch.

　各第２凹部５０では、完全な平行四辺形をなす孔部５１が少なくとも１２個並んで形成されており、いずれの第２凹部５０も、その全長は、第１凹部３０の全長と同寸法とされている。
Each of the second recesses 50 is formed with at least twelve holes 51 that form a perfect parallelogram, and each of the second recesses 50 has the same length as that of the first recess 30. Has been.

　実施形態２の第２凹部５０も、各孔部５１の開口縁からなるエッジの長さが大きく取れて、酸化被膜を剥離する能力に優れていると言える。そして、芯線１１の固着力に優れた第１凹部３０に加えて、このように酸化被膜の剥離能力ひいては接触抵抗を減少させる能力に優れた第２凹部５０を備えたことにより、同様に、芯線１１の固着力は確保した上で電気性能を高めることができる。
It can be said that the 2nd recessed part 50 of Embodiment 2 can also take the length of the edge which consists of the opening edge of each hole 51 large, and is excellent in the capability to peel an oxide film. And in addition to the 1st recessed part 30 excellent in the adhesivity of the core wire 11, in addition to having provided the 2nd recessed part 50 excellent in the ability to peel an oxide film by extension, and a contact resistance in this way, a core wire similarly The electrical performance can be improved while securing the fixing force 11.

　また、隣り合った第２凹部５０の列同士では、それぞれの孔部５１が互いに半ピッチずれた形態で形成されているから、一の列の第２凹部５０を構成する孔部５１の前側（後側）の辺５２Ａが、隣の列の第２凹部５０を構成する孔部５１の前側（後側）の辺５２Ａと、幅方向（かしめられた場合の周方向）にオーバラップした状態となり、第２凹部５０についても、隣り合う２列を合わせれば、芯線１１の周面における広い範囲に亘って軸方向の移動を規制することができる。すなわち、固着力がさらに増強される。
Further, in the adjacent rows of the second concave portions 50, the respective hole portions 51 are formed so as to be shifted from each other by a half pitch, so that the front side of the hole portions 51 constituting the second concave portion 50 in one row ( The rear side 52A overlaps the front side (rear side) side 52A of the hole 51 constituting the second recess 50 in the adjacent row in the width direction (circumferential direction when crimped). As for the second recess 50, the movement in the axial direction can be restricted over a wide range on the peripheral surface of the core wire 11 by combining two adjacent rows. That is, the fixing force is further enhanced.

　＜実施形態３＞

　図７は、本発明の実施形態３を示す。この実施形態３は、圧着部２８の接触面２８Ａに凹部を形成する場合のさらに別の態様を示している。
<Embodiment 3>

FIG. 7 shows Embodiment 3 of the present invention. This Embodiment 3 has shown another aspect in the case of forming a recessed part in the contact surface 28A of the crimping | compression-bonding part 28. FIG.

　実施形態３では、圧着部２８の接触面２８Ａに対して、実施形態１で例示した圧着部２８の幅方向に細長い溝状をなす第１凹部３０と、複数の正方形の孔部４１が圧着部２８の幅方向に所定間隔を開けて一列に並んで配された第２凹部４０とが、それぞれ２本ずつが１組となって、圧着部２８の中心線方向に沿い、２度交互に配された形態となっている。
In the third embodiment, the first concave portion 30 having an elongated groove shape in the width direction of the crimping portion 28 illustrated in the first embodiment and a plurality of square hole portions 41 with respect to the contact surface 28A of the crimping portion 28 are the crimping portions. The second concave portions 40 arranged in a line at a predetermined interval in the width direction of the 28 are arranged in pairs, and each of the two concave portions 40 is alternately arranged twice along the center line direction of the crimping portion 28. It has become a form.

　この実施形態３でも、芯線１１の固着力に優れた第１凹部３０に加えて、酸化被膜の剥離能力ひいては接触抵抗を減少させる能力に優れた第２凹部４０が備えられているから、芯線１１の固着力は確保した上で電気性能を高めることができ、また、電気性能と固着力の向上を、芯線１１の長さ方向における広範囲に亘ってバランス良く実現することができる。
Even in the third embodiment, in addition to the first concave portion 30 excellent in the fixing strength of the core wire 11, the second concave portion 40 excellent in the ability to peel the oxide film and hence the contact resistance is provided. It is possible to improve the electrical performance while securing the fixing force, and to improve the electrical performance and the fixing force in a well-balanced manner over a wide range in the length direction of the core wire 11.

　＜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）第１凹部と第２凹部とは、接触面に混在して設けられているだけでもよい。

　（２）第１凹部と第２凹部とは、３列以下で形成されていてもよい。

　（３）実施形態１において、第１凹部３０と第２凹部４０とは、少なくとも４列以上に亘って形成されているのが好ましい。

　（４）実施形態１において、隣り合った第２凹部４０の列同士で、それぞれの孔部４１が互いに半ピッチずれた形態、すなわち前後の孔部４１がオーバラップする形態で形成されていてもよい。

　（５）実施形態２において、第１凹部３０と第２凹部５０とは、少なくとも４列以上に亘って形成されているのが好ましい。

　（６）実施形態２において、各第２凹部５０が、実施形態１と同様にピッチがずれていない形態、すなわち前後の孔部５１同士がオーバラップしない形態で形成されていてもよい。

　（７）第２凹部を構成する孔部の形状は、上記実施形態に例示した正方形や平行四辺形に限らず、長方形、台形、菱形、さらには互いに平行な辺を有しない四角形等、必要に応じて、任意の四角形状とすることができる。

　（８）上記実施形態では、雌端子金具に設けられたワイヤバレルが、両バレル片がそれぞれの突出端を突き合わせつつ、芯線の端末の外周を左右両側から抱き込むハート型にかしめられる場合を例示したが、これ以外に例えば、両バレル片がそれぞれの突出端を重ね合わせつつ、芯線の端末の外周を左右両側から抱き込む、いわゆるオーバラップ型にかしめられるものであってもよい。

　（９）上記実施形態では、アルミ電線の端末に接続する端子金具として雌端子金具を例示したが、雄タブを備えた雄端子金具、あるいは目玉状の接続部を有するＬＡ端子等の他の端子金具であってもよい。

　（１０）本発明は、上記実施形態に例示したアルミ電線以外に、銅電線等の他の電線についても適用することが可能である。
<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 first recess and the second recess may be provided only on the contact surface.

(2) The first recess and the second recess may be formed in three rows or less.

(3) In Embodiment 1, it is preferable that the 1st recessed part 30 and the 2nd recessed part 40 are formed over at least 4 rows or more.

(4) In the first embodiment, even when the adjacent second recesses 40 are formed in such a manner that the holes 41 are shifted from each other by a half pitch, that is, the holes 41 in the front and back overlap each other. Good.

(5) In Embodiment 2, it is preferable that the 1st recessed part 30 and the 2nd recessed part 50 are formed over 4 rows or more.

(6) In the second embodiment, each second recess 50 may be formed in a form in which the pitch is not shifted as in the first embodiment, that is, in a form in which the front and rear hole parts 51 do not overlap each other.

(7) The shape of the hole constituting the second recess is not limited to the square or the parallelogram illustrated in the above embodiment, but a rectangle, a trapezoid, a rhombus, or a quadrangle that does not have sides parallel to each other is necessary. Depending on the situation, it can be an arbitrary square shape.

(8) In the above embodiment, the case where the wire barrel provided on the female terminal fitting is caulked into a heart shape that embraces the outer periphery of the end of the core wire from both the left and right sides while the both barrel pieces abut each projecting end. However, in addition to this, for example, both barrel pieces may be caulked in a so-called overlap type in which the outer ends of the ends of the core wires are held from both the left and right sides while overlapping their protruding ends.

(9) In the above embodiment, the female terminal fitting is exemplified as the terminal fitting to be connected to the terminal of the aluminum electric wire, but other terminals such as a male terminal fitting having a male tab or an LA terminal having an eyeball-shaped connecting portion. It may be a metal fitting.

(10) The present invention can be applied to other electric wires such as copper electric wires in addition to the aluminum electric wires exemplified in the above embodiment.

Claims (12)


  1. 　相手側導体と接続される接続部と、

    　前記接続部の後方に位置し、被覆電線に露出された芯線の端末に抱き込むように圧着される圧着部と、

    　前記圧着部における前記芯線の端末を包む接触面に形成され、前記芯線の軸方向と略直交する方向に細長く延びる第１凹部と、

    　前記接触面に形成され、前記芯線の軸方向と略直交する方向に前記第１凹部よりも短く延び、かつ同方向に間隔をあけて複数並んで配される孔部を有する第２凹部とを備えることを特徴とする端子金具。
    A connection part connected to the mating conductor;

    A crimping part that is located behind the connection part and is crimped so as to be held in the end of the core wire exposed to the covered electric wire;

    A first recess that is formed on a contact surface that wraps the end of the core wire in the crimping portion and extends in a direction substantially orthogonal to the axial direction of the core wire;

    A second recess formed on the contact surface, extending in a direction substantially perpendicular to the axial direction of the core wire and shorter than the first recess, and having a plurality of holes arranged in the same direction at intervals. A terminal fitting characterized by comprising.

  2. 　前記第１凹部と前記第２凹部とは、前記芯線の軸方向に間隔を開けて交互に配されていることを特徴とする請求項１記載の端子金具。
    The terminal fitting according to claim 1, wherein the first recess and the second recess are alternately arranged with an interval in the axial direction of the core wire.

  3. 　前記第１凹部と前記第２凹部とは、少なくとも４列以上に亘って交互に配されていることを特徴とする請求項２記載の端子金具。
    The terminal fitting according to claim 2, wherein the first recesses and the second recesses are alternately arranged over at least four rows.

  4. 　隣り合った前記第２凹部の列同士では、それぞれの孔部が互いに半ピッチずれた形態で形成されていることを特徴とする請求項３記載の端子金具。
    4. The terminal fitting according to claim 3, wherein in the adjacent rows of the second concave portions, the respective hole portions are formed so as to be shifted from each other by a half pitch.

  5. 　前記第１凹部と前記第２凹部とは、１本ずつが前記芯線の軸方向に間隔を開けて交互に配されていることを特徴とする請求項３又は４記載の端子金具。
    5. The terminal fitting according to claim 3, wherein the first recess and the second recess are alternately arranged one by one at intervals in the axial direction of the core wire.

  6. 　前記第１凹部と前記第２凹部とは、それぞれ２本以上ずつが１組となって前記芯線の軸方向に間隔を開けて交互に配されていることを特徴とする請求項３又は４記載の端子金具。
    The said 1st recessed part and the said 2nd recessed part are arrange | positioned alternately with the space | interval in the axial direction of the said core wire by making 2 sets or more respectively into 1 set. Terminal fittings.

  7. 　前記第２凹部を構成する各孔部の孔縁が四角形状をなし、その孔縁の少なくとも一辺が、前記芯線の軸方向と略直交する方向に沿って形成されていることを特徴とする請求項１ないし６のいずれか１項記載の端子金具。
    The hole edge of each hole part which comprises the said 2nd recessed part comprises square shape, and at least one side of the hole edge is formed along the direction substantially orthogonal to the axial direction of the said core wire. Item 7. The terminal fitting according to any one of Items 1 to 6.

  8. 　前記孔部の孔縁のうち、前記芯線の端部側に位置する辺が、前記芯線の軸方向と略直交する方向に沿って形成されていることを特徴とする請求項７記載の端子金具。
    8. The terminal fitting according to claim 7, wherein, of the hole edges of the hole portion, a side located on an end side of the core wire is formed along a direction substantially orthogonal to the axial direction of the core wire. .

  9. 　前記孔部の孔縁のうち、前記芯線の端部と反対側に位置する辺が、前記芯線の軸方向と略直交する方向に沿って形成されていることを特徴とする請求項７記載の端子金具。
    The side of the hole edge of the hole that is located on the opposite side of the end of the core wire is formed along a direction substantially orthogonal to the axial direction of the core wire. Terminal fitting.

  10. 　前記孔部の孔縁のうち、前記芯線の端部側と同端部とは反対側の両位置の辺が、前記芯線の軸方向と略直交する方向に沿って形成されていることを特徴とする請求項７記載の端子金具。
    Of the hole edge of the hole, both sides of the core wire on the opposite side of the end portion side are formed along a direction substantially orthogonal to the axial direction of the core wire. The terminal fitting according to claim 7.

  11. 　芯線を被覆で覆った被覆電線における前記芯線の端末に、請求項１ないし１０のいずれか１項に記載の端子金具が圧着されていることを特徴とする端子金具付き電線。
    11. An electric wire with terminal fitting, wherein the terminal fitting according to any one of claims 1 to 10 is crimped to an end of the core wire in a covered electric wire having a core wire covered with a coating.

  12. 　前記被覆電線の前記芯線が、アルミニウム又はアルミニウム合金からなる複数本のアルミ素線により形成されていることを特徴とする請求項１１記載の端子金具付き電線。
    12. The electric wire with terminal fitting according to claim 11, wherein the core wire of the covered electric wire is formed of a plurality of aluminum wires made of aluminum or an aluminum alloy.
PCT/JP2009/060469 2008-07-15 2009-06-08 Terminal fitting and electrical wire with terminal fitting WO2010007843A1 (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012120770A1 (en) * 2011-03-08 2012-09-13 Yazaki Corporation Crimping terminal
JP2013054854A (en) * 2011-09-01 2013-03-21 Furukawa Electric Co Ltd:The Connection sleeve and wire connection structure
KR101495487B1 (en) 2011-11-07 2015-02-24 델피 테크놀로지스 인코포레이티드 Electrical contact with romboid knurl pattern
WO2015056728A1 (en) * 2013-10-18 2015-04-23 矢崎総業株式会社 Crimp terminal
EP2774223A4 (en) * 2011-11-03 2015-07-08 Delphi Tech Inc Electrical contact having rhombic knurl pattern

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5212884U (en) * 1975-07-16 1977-01-29
JPS55120080U (en) * 1979-02-16 1980-08-25
JPH05152011A (en) * 1991-11-26 1993-06-18 Sumitomo Wiring Syst Ltd Crimp-style terminal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5212884U (en) * 1975-07-16 1977-01-29
JPS55120080U (en) * 1979-02-16 1980-08-25
JPH05152011A (en) * 1991-11-26 1993-06-18 Sumitomo Wiring Syst Ltd Crimp-style terminal

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012120770A1 (en) * 2011-03-08 2012-09-13 Yazaki Corporation Crimping terminal
CN103415958A (en) * 2011-03-08 2013-11-27 矢崎总业株式会社 Crimping terminal
US9099792B2 (en) 2011-03-08 2015-08-04 Yazaki Corporation Crimping terminal
JP2013054854A (en) * 2011-09-01 2013-03-21 Furukawa Electric Co Ltd:The Connection sleeve and wire connection structure
EP2774223A4 (en) * 2011-11-03 2015-07-08 Delphi Tech Inc Electrical contact having rhombic knurl pattern
KR101495487B1 (en) 2011-11-07 2015-02-24 델피 테크놀로지스 인코포레이티드 Electrical contact with romboid knurl pattern
EP2777102A4 (en) * 2011-11-07 2015-07-22 Delphi Tech Inc Electrical contact with romboid knurl pattern
WO2015056728A1 (en) * 2013-10-18 2015-04-23 矢崎総業株式会社 Crimp terminal
JP2015079687A (en) * 2013-10-18 2015-04-23 矢崎総業株式会社 Crimping terminal
US9899749B2 (en) 2013-10-18 2018-02-20 Yazaki Corporation Crimp terminal

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