WO2018092585A1 - Crimp terminal and terminal-equipped electric wire - Google Patents

Crimp terminal and terminal-equipped electric wire Download PDF

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Publication number
WO2018092585A1
WO2018092585A1 PCT/JP2017/039479 JP2017039479W WO2018092585A1 WO 2018092585 A1 WO2018092585 A1 WO 2018092585A1 JP 2017039479 W JP2017039479 W JP 2017039479W WO 2018092585 A1 WO2018092585 A1 WO 2018092585A1
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Prior art keywords
wire
pair
terminal
core wire
core
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PCT/JP2017/039479
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French (fr)
Japanese (ja)
Inventor
直也 西村
賀一 蜂矢
宮本 賢次
高信 嶋田
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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
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Publication of WO2018092585A1 publication Critical patent/WO2018092585A1/en

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-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
    • H01R4/10Electrically-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
    • H01R4/18Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping

Definitions

  • the technology disclosed in this specification relates to a crimp terminal and an electric wire with a terminal.
  • a second barrel portion is provided which is connected to the wire barrel via a joint portion, and the joint portion is folded and crimped to the core wire in a state where the second barrel portion is overlapped with a part of the wire barrel.
  • a technique has been devised (see Patent Document 1). Since the core wire is compressed with a relatively strong compressive force at the portion where the wire barrel and the second barrel portion overlap, the oxide film on the surface of the core wire is destroyed, and the new surface is exposed. Thereby, the electrical resistance between a crimp terminal and a core wire can be made small.
  • the technology disclosed in the present specification has been completed based on the above-described circumstances, and without complicating the manufacturing process, ensuring the holding force for the core wire and reducing the electrical resistance related to the core wire. It aims at making it compatible.
  • the crimp terminal disclosed by this specification is a crimp terminal crimped to an electric wire provided with a core wire and an insulation coating that covers the core wire, and the core wire exposed from the insulation coating is disposed in the electric wire.
  • a pair of first wire barrels that are respectively extended in a direction intersecting with the extending direction of the core wire from both sides of the bottom plate portion and the bottom plate portion, and compressed while compressing the core wire so as to be wound around the core wire
  • a pair of second wire barrel portions that are respectively extended from both side portions of the bottom plate portion in a direction crossing the extending direction of the core wire and are compressed while compressing the core wire so as to be wound around the core wire
  • the extension length of the first wire barrel part from the bottom plate part is larger than the extension length of the second wire barrel part from the bottom plate part.
  • the pair of first wire barrel portions and the pair of second wire barrel portions are collectively crimped by a crimping jig
  • the pair of first wire barrel portions having a large extension length is paired.
  • the core wire is more strongly compressed than the second wire barrel portion.
  • the oxide film on the surface of the core wire is destroyed, and the new surface is exposed, whereby the electrical resistance related to the core wire can be reduced.
  • the core wire is compressed with a relatively weak compressive force. Therefore, damage to the core wire can be more reliably suppressed, and a holding force for the core wire can be secured. .
  • ensuring of the retention strength with respect to a core wire and making the electrical resistance which concerns on a core wire can be made compatible, without performing the operation
  • the crimp terminal can be a splice terminal.
  • the electric wire with a terminal indicated by this specification is provided with the above-mentioned electric wire and the above-mentioned crimp terminal, and the above-mentioned pair of 1st wire barrel parts has the above-mentioned core wire compared with the above-mentioned pair of 2nd wire barrel parts. It is characterized by being a high-compression part that performs high compression.
  • At least two of the electric wires and two sets of the pair of second wire barrel portions, and the crimp terminal is exposed at an intermediate portion of one of the two electric wires.
  • Splice terminals that connect the core wire and the core wire of the other of the two electric wires, and the pair of second wire barrel portions, in the extending direction of the core wire of the one electric wire, One set may be arranged on each side of the pair of first wire barrel portions.
  • a pair of second wire barrel portions that compress the core wire with a relatively weak compressive force are arranged on both sides of the pair of first wire barrel portions, so that the load is applied from both sides in the extending direction of one electric wire. When this occurs, damage to the core wire can be more reliably suppressed.
  • Sectional drawing which shows the 2nd wire barrel part and core wire of the state set to the crimping jig
  • Sectional drawing which shows the 2nd wire barrel part and core wire in the state crimped
  • the side view which shows the electric wire with a terminal of Embodiment 2.
  • the electric wire with terminal 10 of the present embodiment includes two electric wires (main wire 11 and branch wire 12), a splice terminal 20 (crimp terminal) that is crimped to the main wire 11 and branch wire 12, and Is provided.
  • the main wire 11 is an aluminum electric wire having a known configuration including a core wire 11A and an insulating coating 11B made of a synthetic resin that covers the core wire 11A.
  • 11 A of core wires are comprised with the strand wire which twisted the strand 11C made from aluminum or aluminum alloy.
  • the insulating coating 11B is peeled off and the core wire 11A is exposed.
  • the branch line 12 is an aluminum electric wire having a known configuration including a core wire 12A and an insulating coating 12B made of synthetic resin.
  • 12 A of core wires are comprised by the strand wire which twisted together the strand 12C made from aluminum or aluminum alloy.
  • the insulation coating 12B is peeled off and the core wire 12A is exposed.
  • the core wire 11 ⁇ / b> A of the main line 11 and the core wire 12 ⁇ / b> A of the branch line 12 are arranged in parallel to each other and are connected by the splice terminal 20.
  • the splice terminal 20 is made of a copper or copper alloy plate, and the surface thereof is tin-plated. As shown in FIGS. 4 and 5, the splice terminal 20 includes a bottom plate portion 21, a pair of first wire barrel portions 30 and 30, and a pair of second wire barrel portions 40 and 40.
  • the splice terminal 20 has a shape in which the plate material is curved in a U-shape when viewed from the front.
  • the bottom plate portion 21 is a portion corresponding to a U-shaped bottom portion, and has a longitudinal shape extending along the length direction of the core wires 11A and 12A.
  • Core wires 11 ⁇ / b> A and 12 ⁇ / b> A are placed on the bottom plate portion 21.
  • the pair of first wire barrel portions 30, 30 are respectively extended from both side portions of the bottom plate portion 21 in a direction orthogonal to the extending direction of the bottom plate portion 21 (and thus the core wires 11 ⁇ / b> A, 12 ⁇ / b> A). (See also the development in FIG. 3).
  • the pair of first wire barrel portions 30 and 30 are crimped while being wound around the core wires 11A and 12A while compressing the core wires 11A and 12A.
  • the core wire 11 ⁇ / b> A is caulked mainly with one first wire barrel portion 30, and the core wire 12 ⁇ / b> A is caulked mainly with the other first wire barrel portion 30.
  • the pair of second wire barrel portions 40, 40 respectively extend from both side portions of the bottom plate portion 21 in a direction orthogonal to the extending direction of the bottom plate portion 21 (and thus the core wires 11 ⁇ / b> A, 12 ⁇ / b> A).
  • the pair of second wire barrel portions 40, 40 are crimped while being wound around the core wires 11A, 12A while compressing the core wires 11A, 12A.
  • the core wire 11 ⁇ / b> A is caulked mainly by one second wire barrel portion 40
  • the core wire 12 ⁇ / b> A is caulked mainly by the other second wire barrel portion 40.
  • Two pairs of second wire barrel portions 40, 40 are provided. As shown in FIGS. 1 and 2, the pair of second wire barrel portions 40, 40 are arranged on both sides of the pair of first wire barrel portions 30, 30 in the extending direction of the core wires 11A, 12A (left-right direction in FIG. 2). One set is arranged in each. Moreover, as shown in FIG. 3, the extension length L1 from the bottom plate portion 21 of the first wire barrel portion 30 (the length in the direction perpendicular to the length direction of the bottom plate portion 21 during deployment) is the second wire. It is set to a value larger than the extension length L2 from the bottom plate portion 21 of the barrel portion 40.
  • the plate thickness of the 1st wire barrel part 30 and the 2nd wire barrel part 40 is set with the same value.
  • the width B1 of the first wire barrel part 30 is set to a value smaller than the width B2 of the second wire barrel part 40, for example.
  • the 1st wire barrel part 30 and the 2nd wire barrel part 40 are distribute
  • a single plate-like carrier 51 and a plurality of terminal element pieces 52 connected to the carrier 51 are obtained by punching a metal plate material.
  • the terminal pieces 52 are separated from the carrier 51, respectively.
  • the splice terminal 20 is obtained by bending each terminal element piece 52 into a U shape.
  • the splice terminal 20 is crimped to the main line 11 and the branch line 12 using the crimping jig 60 (anvil 61 and crimper 62) shown in FIG.
  • the intermediate coating 11B in the main line 11 is peeled off to expose a part of the core wire 11A.
  • the insulation coating 12B of the terminal portion is peeled off to expose a part of the core wire 12A.
  • the splice terminal 20 is disposed on the anvil 61, and the exposed core wire 11 ⁇ / b> A and the core wire 12 ⁇ / b> A are disposed above the bottom plate portion 21 of the splice terminal 20.
  • the pair of first wire barrel portions 30, 30 rises from the bottom plate portion 21 toward the crimper 62 in a posture facing each other.
  • the pair of second wire barrel portions 40 and 40 rises from the bottom plate portion 21 toward the crimper 62 in a posture facing each other.
  • each of the pair of first wire barrel portions 30 and 30 and the pair of second wire barrel portions 40 and 40 comes into contact with the side wall portion 62A and the top wall portion 62B of the crimper 62, and the top wall portion. It curves in a shape along the two U-shaped grooves 62C and 62C formed in 62B. Since the wire barrel portions 30 and 40 are curved, the rising end portions of the wire barrel portions 30 and 40 are turned to the core wires 11A and 12A, and bite into the core wires 11A and 12A (see FIGS. 7 and 9).
  • the core wires 11A and 12A are compressed by the pair of first wire barrel portions 30 and 30 and the bottom plate portion 21 and also compressed by the pair of second wire barrel portions 40 and 40 and the bottom plate portion 21.
  • the 1st wire barrel part 30 and the 2nd wire barrel part 40 are crimped
  • the cross-sectional shapes of the anvil 61 and the crimper 62 are the same throughout the entire length of the splice terminal 20 as shown in FIGS. For this reason, the cross-sectional shape of the molding space S2 formed between the anvil 61 and the crimper 62 in the crimping process is the same shape over the entire length in the longitudinal direction of the splice terminal 20 (the length direction of the core wires 11A and 12A). ing.
  • the outer shape of the pair of first wire barrel portions 30 and the pair of second wire barrel portions 40 after the crimping has a shape that follows the shape of the molding space S2. That is, the outer shape of the pair of first wire barrel portions 30 after crimping and the outer shape of the pair of second wire barrel portions 40 are substantially the same.
  • the extension length L1 of the first wire barrel part 30 is set to a larger value than the extension length L2 of the second wire barrel part 40.
  • the cross-sectional area (refer FIG. 7) of the part compressed by a pair of 1st wire barrel part 30 and 30 is a part of the part compressed by a pair of 2nd wire barrel part 40,40. It becomes smaller than the cross-sectional area (see FIG. 9). That is, the pair of first wire barrel portions 30 and 30 is a high compression portion that highly compresses the core wires 11A and 12A compared to the pair of second wire barrel portions 40 and 40 (low compression portion).
  • the high compression mentioned here means that the compression ratio is smaller when (compression area of core wire after compression) / (cross-sectional area of core wire before compression) ⁇ 100 (%) is the compression ratio. Means.
  • the high compression portion can be provided in the same process as the conventional crimping process. For this reason, the electrical resistance concerning a core wire can be made small, ensuring the retention strength with respect to a core wire, without performing the operation
  • the structure which overlaps another barrel part on a wire barrel it is necessary to connect a wire barrel and another barrel part with a coupling part. For this reason, the part which a joint part overlaps in a wire barrel will turn into a high compression part. That is, it is difficult to provide a high compression portion only at a predetermined location.
  • only a predetermined part can be made into a high compression part.
  • the splice terminal 20 of the present embodiment connects the core wire 11A exposed at the intermediate portion of the main wire 11 and the core wire 12A of the branch wire 12, and is a pair of second wire barrel portions 40, 40. Are arranged on both sides of the pair of first wire barrel portions 30 in the extending direction of the core wire 11A.
  • the branch line 12 When the branch line 12 is connected to the middle part of the main line 11, it is conceivable that loads are applied to the core lines 11 ⁇ / b> A and 12 ⁇ / b> A that are connection parts from both sides in the extending direction of the main line 11.
  • the pair of second wire barrel portions 40 and 40 that compress the core wire with a relatively weak compressive force are arranged on both sides of the pair of first wire barrel portions 30 and 30, thereby extending in the main line 11. In the case where loads are applied from both sides, damage to the core wire can be avoided more reliably.
  • the core wires 11A, 12A are made of aluminum or an aluminum alloy
  • an oxide film (insulating film) is relatively easily formed on the surface of the core wire.
  • the oxide film can be broken by providing the high compression portion, it is effective when the core wires 11A and 12A are aluminum or an aluminum alloy.
  • a gap S1 is generated between the first wire barrel portion 30 and the second wire barrel portion 40, and the length of the splice terminal 20 is increased accordingly.
  • the splice terminal is often used without being accommodated in the housing, and the length of the splice terminal is less limited than that of the crimp terminal that is assumed to be accommodated in the housing. Therefore, the configuration of this embodiment can be easily applied. it can.
  • the high compression portion in the crimp terminal for example, in a portion where the high compression portion is desired, a method of partially reducing the interval between the anvil and the crimper is conceivable.
  • the structure of the crimper becomes complicated and the cost increases.
  • the high compression part can be provided by changing the length of the 1st wire barrel part 30, it is not necessary to change the structure of a crimper, and is suitable.
  • the electric wire with terminal 110 includes an electric wire 111 and a female terminal 120 (crimp terminal) connected to the terminal of the electric wire 111.
  • the electric wire 111 is an aluminum electric wire having a known configuration provided with a core wire 111A and an insulating coating 111B made of synthetic resin that covers the core wire 11A.
  • the female terminal 120 includes a bottom plate portion 121, a pair of insulation barrel portions 122 that are crimped so as to be wound around the insulating coating 111B from the outside, a pair of first wire barrel portions 130, and a pair of second wire barrel portions 140. And a connection part 123 that is fitted and electrically connected to a male terminal (not shown).
  • a male terminal not shown.
  • FIG. 10 only one barrel portion 122, 130, 140 of the pair of barrel portions 122, 130, 140 is illustrated.
  • the pair of second wire barrel portions 140 that are low compression portions are arranged on the side from which the electric wire 111 is drawn (on the right side in FIG. 10) as compared to the pair of first wire barrel portions 130.
  • 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 material of a core wire and a crimp terminal is not limited to what was illustrated by the said embodiment, It can change suitably.
  • the core wire may be a copper wire.
  • the crimp terminal may be made of aluminum or an aluminum alloy, for example. Further, when the crimp terminal is a splice terminal, an insulator may be used.
  • variety of the 1st wire barrel part 30 was illustrated smaller than the width
  • the width of the first wire barrel part 30 and the width of the second wire barrel part 40 may be set to the same value, and the width of the first wire barrel part 30 is larger than the width of the second wire barrel part 40. May be.
  • the number of electric wires is not limited to that exemplified in the above embodiment, and may be three or more. Moreover, it is good also as a structure which mutually connects the electric wire extended on the one side and the electric wire extended on the other side on the basis of a splice terminal.
  • the structure by which the 1st wire barrel part 30 and the 2nd wire barrel part 40 are each extended from the both sides of the baseplate part 21 in the direction orthogonal to the extension direction of core wire 11A, 12A is illustrated.
  • the extending direction of the 1st wire barrel part 30 and the 2nd wire barrel part 40 should just cross
  • the type of crimp terminal is not limited to that exemplified in the above embodiment.
  • the crimp terminal may be a male terminal having a male tab, or a so-called LA terminal in which a through hole is formed in a metal plate material.
  • Serrations may be provided on the crimp terminals exemplified in the above embodiment.

Abstract

The invention relates to a splice terminal 20 to be crimped onto both a main wire 11 and a branching wire 12, and is characterized by comprising: a bottom plate section 21 whereon core wires 11A, 12A are to be disposed; a pair of first wire barrel sections 30, 30 respectively extending from each edge portion of the bottom plate section 21, to be wrapped around the core wires 11A, 12A which are crimped while the core wires 11A, 12A, are being compressed; and a pair of second wire barrel sections 40, 40 respectively extending from each edge portion of the bottom plate section 21, to be wrapped around the core wires 11A, 12A which are crimped while compressing the core wires 11A, 12A. The extending length L1 of the first wire barrel section 30 from the bottom plate section 21 is greater than the extending length L2 of the second wire barrel section 40 from the bottom plate section 21.

Description

圧着端子及び端子付き電線Crimp terminal and electric wire with terminal
 本明細書によって開示される技術は、圧着端子及び端子付き電線に関する。 The technology disclosed in this specification relates to a crimp terminal and an electric wire with a terminal.
 電線に圧着される圧着端子として、ワイヤーバレルに対して継手部を介して連なる第2バレル部を設け、継手部を折り返して第2バレル部をワイヤーバレルの一部に重ねた状態で芯線に圧着する技術が考案されている(特許文献1参照)。ワイヤーバレルと第2バレル部とが重なる部分では、芯線を比較的強い圧縮力で圧縮することになるため、芯線の表面の酸化被膜が破壊され、新生面が露出する。これにより、圧着端子と芯線との間の電気抵抗を小さくすることができる。一方、ワイヤーバレルにおいて第2バレル部が重なっていない部分は、比較的弱い圧縮力で芯線を圧縮することとなるため、芯線の損傷をより確実に抑制することができる。これにより、ワイヤーバレルの芯線に対する保持力を確保することができる。 As a crimping terminal to be crimped to the electric wire, a second barrel portion is provided which is connected to the wire barrel via a joint portion, and the joint portion is folded and crimped to the core wire in a state where the second barrel portion is overlapped with a part of the wire barrel. A technique has been devised (see Patent Document 1). Since the core wire is compressed with a relatively strong compressive force at the portion where the wire barrel and the second barrel portion overlap, the oxide film on the surface of the core wire is destroyed, and the new surface is exposed. Thereby, the electrical resistance between a crimp terminal and a core wire can be made small. On the other hand, since the portion of the wire barrel where the second barrel portion does not overlap compresses the core wire with a relatively weak compressive force, damage to the core wire can be more reliably suppressed. Thereby, the retention strength with respect to the core wire of a wire barrel is securable.
特許第5741409号公報Japanese Patent No. 5714409
 上記構成では、ワイヤーバレルと第2バレル部とを重ねる作業が必要となり、製造工程が複雑化してしまう。 In the above configuration, an operation of stacking the wire barrel and the second barrel portion is required, and the manufacturing process becomes complicated.
 本明細書によって開示される技術は、上記のような事情に基づいて完成されたものであって、製造工程を複雑化させることなく、芯線に対する保持力の確保と、芯線に係る電気抵抗を小さくすることとを両立させ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 without complicating the manufacturing process, ensuring the holding force for the core wire and reducing the electrical resistance related to the core wire. It aims at making it compatible.
 本明細書によって開示される圧着端子は、芯線と前記芯線を被覆する絶縁被覆とを備える電線に圧着される圧着端子であって、前記電線において前記絶縁被覆から露出された前記芯線が配置される底板部と、前記底板部の両側部から前記芯線の延び方向と交差する方向にそれぞれ延出されると共に、前記芯線に巻き付くようにして前記芯線を圧縮しながら圧着される一対の第1ワイヤーバレル部と、前記底板部の両側部から前記芯線の延び方向と交差する方向にそれぞれ延出されると共に、前記芯線に巻き付くようにして前記芯線を圧縮しながら圧着される一対の第2ワイヤーバレル部と、を備え、前記第1ワイヤーバレル部の前記底板部からの延出長さは、前記第2ワイヤーバレル部の前記底板部からの延出長さよりも大きいことに特徴を有する。 The crimp terminal disclosed by this specification is a crimp terminal crimped to an electric wire provided with a core wire and an insulation coating that covers the core wire, and the core wire exposed from the insulation coating is disposed in the electric wire. A pair of first wire barrels that are respectively extended in a direction intersecting with the extending direction of the core wire from both sides of the bottom plate portion and the bottom plate portion, and compressed while compressing the core wire so as to be wound around the core wire And a pair of second wire barrel portions that are respectively extended from both side portions of the bottom plate portion in a direction crossing the extending direction of the core wire and are compressed while compressing the core wire so as to be wound around the core wire And the extension length of the first wire barrel part from the bottom plate part is larger than the extension length of the second wire barrel part from the bottom plate part. A.
 上記構成の圧着端子において、一対の第1ワイヤーバレル部と一対の第2ワイヤーバレル部とを圧着治具で一括して圧着すると、延出長さが大きい一対の第1ワイヤーバレル部が、一対の第2ワイヤーバレル部に比べて、芯線をより強く圧縮することになる。この結果、一対の第1ワイヤーバレル部によって圧縮される部分においては、芯線の表面の酸化被膜が破壊され、新生面が露出することで、芯線に係る電気抵抗を小さくすることができる。一方、一対の第2ワイヤーバレル部においては、比較的弱い圧縮力で芯線を圧縮することになるため、芯線の損傷をより確実に抑制することができ、芯線に対する保持力を確保することができる。このように、上記構成によれば、ワイヤーバレルと第2バレル部とを重ねる作業を行うことなく、芯線に対する保持力の確保と芯線に係る電気抵抗を小さくすることとを両立させることができる。 In the crimp terminal having the above configuration, when the pair of first wire barrel portions and the pair of second wire barrel portions are collectively crimped by a crimping jig, the pair of first wire barrel portions having a large extension length is paired. The core wire is more strongly compressed than the second wire barrel portion. As a result, in the portion compressed by the pair of first wire barrel portions, the oxide film on the surface of the core wire is destroyed, and the new surface is exposed, whereby the electrical resistance related to the core wire can be reduced. On the other hand, in the pair of second wire barrel portions, the core wire is compressed with a relatively weak compressive force. Therefore, damage to the core wire can be more reliably suppressed, and a holding force for the core wire can be secured. . Thus, according to the said structure, ensuring of the retention strength with respect to a core wire and making the electrical resistance which concerns on a core wire can be made compatible, without performing the operation | work which overlaps a wire barrel and a 2nd barrel part.
 また、前記圧着端子がスプライス端子であるものとすることができる。 Further, the crimp terminal can be a splice terminal.
 また、本明細書によって開示される端子付き電線は、前記電線と、前記圧着端子と、を備え、前記一対の第1ワイヤーバレル部は、前記一対の第2ワイヤーバレル部に比べて前記芯線を高圧縮する高圧縮部であることに特徴を有する。 Moreover, the electric wire with a terminal indicated by this specification is provided with the above-mentioned electric wire and the above-mentioned crimp terminal, and the above-mentioned pair of 1st wire barrel parts has the above-mentioned core wire compared with the above-mentioned pair of 2nd wire barrel parts. It is characterized by being a high-compression part that performs high compression.
 また、少なくとも2本の前記電線と、2組の前記一対の第2ワイヤーバレル部と、を備え、前記圧着端子は、前記2本の前記電線のうち一方の電線の中間部において露出された前記芯線と、前記2本の前記電線のうち他方の電線の前記芯線と、を接続するスプライス端子とされ、前記一対の第2ワイヤーバレル部は、前記一方の電線の前記芯線の延び方向において、前記一対の第1ワイヤーバレル部の両側に1組ずつ配されているものとすることができる。 Further, at least two of the electric wires and two sets of the pair of second wire barrel portions, and the crimp terminal is exposed at an intermediate portion of one of the two electric wires. Splice terminals that connect the core wire and the core wire of the other of the two electric wires, and the pair of second wire barrel portions, in the extending direction of the core wire of the one electric wire, One set may be arranged on each side of the pair of first wire barrel portions.
 上記構成のように、比較的弱い圧縮力で芯線を圧縮する一対の第2ワイヤーバレル部を一対の第1ワイヤーバレル部の両側に配することで、一方の電線における延び方向の両側からそれぞれ荷重が作用した場合において、芯線の損傷をより確実に抑制することができる。 As in the above configuration, a pair of second wire barrel portions that compress the core wire with a relatively weak compressive force are arranged on both sides of the pair of first wire barrel portions, so that the load is applied from both sides in the extending direction of one electric wire. When this occurs, damage to the core wire can be more reliably suppressed.
 本明細書によって開示される技術によれば、製造工程を複雑化させることなく、芯線に対する保持力の確保と、芯線に係る電気抵抗を小さくすることとを両立させることができる。 According to the technique disclosed in this specification, it is possible to achieve both securing of the holding force for the core wire and reducing the electrical resistance related to the core wire without complicating the manufacturing process.
実施形態1の端子付き電線を示す斜視図The perspective view which shows the electric wire with a terminal of Embodiment 1. 端子付き電線を示す側面図Side view showing electric wire with terminal 展開状態のスプライス端子を示す平面図Plan view showing splice terminal in unfolded state スプライス端子を示す斜視図Perspective view showing splice terminal スプライス端子を示す平面図Top view showing splice terminal 圧着治具にセットされた状態の第1ワイヤーバレル部及び芯線を示す断面図Sectional drawing which shows the 1st wire barrel part and core wire of the state set to the crimping jig 圧着治具によって圧着された状態の第1ワイヤーバレル部及び芯線を示す断面図(図2のVII-VII線で切断した図に対応)Sectional drawing which shows the 1st wire barrel part and core wire in the state crimped | bonded by the crimping jig (corresponding to the figure cut | disconnected by the VII-VII line of FIG. 2) 圧着治具にセットされた状態の第2ワイヤーバレル部及び芯線を示す断面図Sectional drawing which shows the 2nd wire barrel part and core wire of the state set to the crimping jig 圧着治具によって圧着された状態の第2ワイヤーバレル部及び芯線を示す断面図(図2のIX-IX線で切断した図に対応)Sectional drawing which shows the 2nd wire barrel part and core wire in the state crimped | bonded by the crimping jig (corresponding to the figure cut | disconnected by the IX-IX line of FIG. 2) 実施形態2の端子付き電線を示す側面図The side view which shows the electric wire with a terminal of Embodiment 2.
 <実施形態1>
 実施形態1を図1から図9によって説明する。本実施形態の端子付き電線10は、図1に示すように、2本の電線(本線11及び分岐線12)と、本線11及び分岐線12に圧着されるスプライス端子20(圧着端子)と、を備える。本線11は、芯線11Aと、この芯線11Aを被覆する合成樹脂製の絶縁被覆11Bとを備えた周知の構成のアルミニウム電線である。芯線11Aは、アルミニウム又はアルミニウム合金製の素線11Cを複数本撚り合わせた撚り線によって構成されている。本線11(2本の電線のうち一方の電線)の中間部では、絶縁被覆11Bが剥き取られて芯線11Aが露出されている。
<Embodiment 1>
The first embodiment will be described with reference to FIGS. As shown in FIG. 1, the electric wire with terminal 10 of the present embodiment includes two electric wires (main wire 11 and branch wire 12), a splice terminal 20 (crimp terminal) that is crimped to the main wire 11 and branch wire 12, and Is provided. The main wire 11 is an aluminum electric wire having a known configuration including a core wire 11A and an insulating coating 11B made of a synthetic resin that covers the core wire 11A. 11 A of core wires are comprised with the strand wire which twisted the strand 11C made from aluminum or aluminum alloy. In the middle part of the main wire 11 (one of the two electric wires), the insulating coating 11B is peeled off and the core wire 11A is exposed.
 分岐線12は、芯線12Aと合成樹脂製の絶縁被覆12Bとを備えた周知の構成のアルミニウム電線である。芯線12Aは、アルミニウム又はアルミニウム合金製の素線12Cの複数本を撚り合わせた撚り線によって構成されている。分岐線12の端末部においては、絶縁被覆12Bが剥き取られて芯線12Aが露出されている。本線11の芯線11Aと分岐線12の芯線12Aとは、互いに並列に配されており、スプライス端子20によって接続されている。 The branch line 12 is an aluminum electric wire having a known configuration including a core wire 12A and an insulating coating 12B made of synthetic resin. 12 A of core wires are comprised by the strand wire which twisted together the strand 12C made from aluminum or aluminum alloy. In the terminal portion of the branch line 12, the insulation coating 12B is peeled off and the core wire 12A is exposed. The core wire 11 </ b> A of the main line 11 and the core wire 12 </ b> A of the branch line 12 are arranged in parallel to each other and are connected by the splice terminal 20.
 スプライス端子20は、銅または銅合金製の板材からなり、その表面に錫めっきが施されている。このスプライス端子20は、図4及び図5に示すように、底板部21と、一対の第1ワイヤーバレル部30,30と、一対の第2ワイヤーバレル部40,40と、を備える。 The splice terminal 20 is made of a copper or copper alloy plate, and the surface thereof is tin-plated. As shown in FIGS. 4 and 5, the splice terminal 20 includes a bottom plate portion 21, a pair of first wire barrel portions 30 and 30, and a pair of second wire barrel portions 40 and 40.
 芯線11A、12Aに圧着される前の単体の状態(図4及び図5の状態)では、スプライス端子20は、板材が正面視U字形状に湾曲された形状をなしている。底板部21は、U字の底部に相当する部分であり、芯線11A、12Aの長さ方向に沿って延びる長手状をなしている。底板部21には、芯線11A、12Aが載置されている。 In the single state before being crimped to the core wires 11A and 12A (the state shown in FIGS. 4 and 5), the splice terminal 20 has a shape in which the plate material is curved in a U-shape when viewed from the front. The bottom plate portion 21 is a portion corresponding to a U-shaped bottom portion, and has a longitudinal shape extending along the length direction of the core wires 11A and 12A. Core wires 11 </ b> A and 12 </ b> A are placed on the bottom plate portion 21.
 一対の第1ワイヤーバレル部30,30は、図4に示すように、底板部21の両側部から底板部21(ひいては芯線11A,12A)の延び方向と直交する方向にそれぞれ延出されている(図3の展開図も参照)。一対の第1ワイヤーバレル部30,30は、図7に示すように、芯線11A、12Aに巻き付くようにして芯線11A、12Aを圧縮しながら圧着される。具体的には、芯線11Aを主に一方の第1ワイヤーバレル部30でかしめ、芯線12Aを主に他方の第1ワイヤーバレル部30でかしめる構成となっている。 As shown in FIG. 4, the pair of first wire barrel portions 30, 30 are respectively extended from both side portions of the bottom plate portion 21 in a direction orthogonal to the extending direction of the bottom plate portion 21 (and thus the core wires 11 </ b> A, 12 </ b> A). (See also the development in FIG. 3). As shown in FIG. 7, the pair of first wire barrel portions 30 and 30 are crimped while being wound around the core wires 11A and 12A while compressing the core wires 11A and 12A. Specifically, the core wire 11 </ b> A is caulked mainly with one first wire barrel portion 30, and the core wire 12 </ b> A is caulked mainly with the other first wire barrel portion 30.
 一対の第2ワイヤーバレル部40,40は、図3及び図4に示すように、底板部21の両側部から底板部21(ひいては芯線11A,12A)の延び方向と直交する方向にそれぞれ延出されている。一対の第2ワイヤーバレル部40,40は、図9に示すように、芯線11A、12Aに巻き付くようにして芯線11A、12Aを圧縮しながら圧着される。具体的には、芯線11Aを主に一方の第2ワイヤーバレル部40でかしめ、芯線12Aを主に他方の第2ワイヤーバレル部40でかしめる構成となっている。 As shown in FIGS. 3 and 4, the pair of second wire barrel portions 40, 40 respectively extend from both side portions of the bottom plate portion 21 in a direction orthogonal to the extending direction of the bottom plate portion 21 (and thus the core wires 11 </ b> A, 12 </ b> A). Has been. As shown in FIG. 9, the pair of second wire barrel portions 40, 40 are crimped while being wound around the core wires 11A, 12A while compressing the core wires 11A, 12A. Specifically, the core wire 11 </ b> A is caulked mainly by one second wire barrel portion 40, and the core wire 12 </ b> A is caulked mainly by the other second wire barrel portion 40.
 一対の第2ワイヤーバレル部40,40は2組設けられている。一対の第2ワイヤーバレル部40,40は、図1及び図2に示すように、芯線11A,12Aの延び方向(図2の左右方向)において、一対の第1ワイヤーバレル部30,30の両側に1組ずつ配されている。また、図3に示すように、第1ワイヤーバレル部30の底板部21からの延出長さL1(展開時において底板部21の長さ方向と直交する方向の長さ)は、第2ワイヤーバレル部40の底板部21からの延出長さL2よりも大きい値で設定されている。 Two pairs of second wire barrel portions 40, 40 are provided. As shown in FIGS. 1 and 2, the pair of second wire barrel portions 40, 40 are arranged on both sides of the pair of first wire barrel portions 30, 30 in the extending direction of the core wires 11A, 12A (left-right direction in FIG. 2). One set is arranged in each. Moreover, as shown in FIG. 3, the extension length L1 from the bottom plate portion 21 of the first wire barrel portion 30 (the length in the direction perpendicular to the length direction of the bottom plate portion 21 during deployment) is the second wire. It is set to a value larger than the extension length L2 from the bottom plate portion 21 of the barrel portion 40.
 第1ワイヤーバレル部30と第2ワイヤーバレル部40の板厚は同じ値で設定されている。第1ワイヤーバレル部30の幅B1は、例えば、第2ワイヤーバレル部40の幅B2よりも小さい値で設定されている。また、第1ワイヤーバレル部30と第2ワイヤーバレル部40とは、芯線11A,12Aの延び方向において隙間S1を空ける形で配されている。 The plate thickness of the 1st wire barrel part 30 and the 2nd wire barrel part 40 is set with the same value. The width B1 of the first wire barrel part 30 is set to a value smaller than the width B2 of the second wire barrel part 40, for example. Moreover, the 1st wire barrel part 30 and the 2nd wire barrel part 40 are distribute | arranged in the form which leaves the clearance gap S1 in the extension direction of core wire 11A, 12A.
 次に、端子付き電線10の製造方法の一例を示す。
(端子成形工程)
 まず、図3に示すように、金属板材を打ち抜き加工することで、一枚の帯状のキャリア51と、キャリア51に接続された複数の端子素片52とを得る。次にキャリア51から、端子素片52をそれぞれ切り離す。その後、各端子素片52をU字状に曲げ加工することでスプライス端子20を得る。
Next, an example of the manufacturing method of the electric wire 10 with a terminal is shown.
(Terminal molding process)
First, as shown in FIG. 3, a single plate-like carrier 51 and a plurality of terminal element pieces 52 connected to the carrier 51 are obtained by punching a metal plate material. Next, the terminal pieces 52 are separated from the carrier 51, respectively. Then, the splice terminal 20 is obtained by bending each terminal element piece 52 into a U shape.
(圧着工程)
 次に、図6に示す圧着治具60(アンビル61及びクリンパ62)を用いて、本線11及び分岐線12に対してスプライス端子20を圧着する。圧着治具60を用いて本線11及び分岐線12にスプライス端子20を圧着する際には、まず、本線11における中間部の絶縁被覆11Bを剥がして芯線11Aの一部を露出させ、分岐線12における端末部の絶縁被覆12Bを剥がして芯線12Aの一部を露出させる。
(Crimping process)
Next, the splice terminal 20 is crimped to the main line 11 and the branch line 12 using the crimping jig 60 (anvil 61 and crimper 62) shown in FIG. When the splice terminal 20 is crimped to the main line 11 and the branch line 12 using the crimping jig 60, first, the intermediate coating 11B in the main line 11 is peeled off to expose a part of the core wire 11A. The insulation coating 12B of the terminal portion is peeled off to expose a part of the core wire 12A.
 次に、図6に示すように、スプライス端子20をアンビル61上に配置すると共に、露出された芯線11A及び芯線12Aをスプライス端子20の底板部21の上方に配置する。圧着される前の状態では、図6に示すように、一対の第1ワイヤーバレル部30,30は、互いに対向する姿勢で底板部21からクリンパ62に向かって立ち上がっている。また、圧着される前の状態では、図8に示すように、一対の第2ワイヤーバレル部40,40は、互いに対向する姿勢で底板部21からクリンパ62に向かって立ち上がっている。 Next, as shown in FIG. 6, the splice terminal 20 is disposed on the anvil 61, and the exposed core wire 11 </ b> A and the core wire 12 </ b> A are disposed above the bottom plate portion 21 of the splice terminal 20. In a state before being crimped, as shown in FIG. 6, the pair of first wire barrel portions 30, 30 rises from the bottom plate portion 21 toward the crimper 62 in a posture facing each other. In a state before being crimped, as shown in FIG. 8, the pair of second wire barrel portions 40 and 40 rises from the bottom plate portion 21 toward the crimper 62 in a posture facing each other.
 次にクリンパ62を下降させると一対の第1ワイヤーバレル部30,30及び一対の第2ワイヤーバレル部40,40の各々が、クリンパ62の側壁部62A及び天壁部62Bに突き当たり、天壁部62Bに形成された2つのU字溝62C,62Cに沿う形に湾曲していく。ワイヤーバレル部30,40が湾曲することで、ワイヤーバレル部30,40の立ち上がり端部が芯線11A,12A側に向きを変え、芯線11A,12Aに食い込む(図7及び図9参照)。 Next, when the crimper 62 is lowered, each of the pair of first wire barrel portions 30 and 30 and the pair of second wire barrel portions 40 and 40 comes into contact with the side wall portion 62A and the top wall portion 62B of the crimper 62, and the top wall portion. It curves in a shape along the two U-shaped grooves 62C and 62C formed in 62B. Since the wire barrel portions 30 and 40 are curved, the rising end portions of the wire barrel portions 30 and 40 are turned to the core wires 11A and 12A, and bite into the core wires 11A and 12A (see FIGS. 7 and 9).
 これと同時に、芯線11A,12Aは、一対の第1ワイヤーバレル部30,30と底板部21によって圧縮されると共に、一対の第2ワイヤーバレル部40,40と底板部21によって圧縮される。このようにして、芯線11A,12Aに第1ワイヤーバレル部30及び第2ワイヤーバレル部40がそれぞれ圧着される。 At the same time, the core wires 11A and 12A are compressed by the pair of first wire barrel portions 30 and 30 and the bottom plate portion 21 and also compressed by the pair of second wire barrel portions 40 and 40 and the bottom plate portion 21. Thus, the 1st wire barrel part 30 and the 2nd wire barrel part 40 are crimped | bonded to core wire 11A, 12A, respectively.
 本実施形態では、アンビル61及びクリンパ62の各断面形状は、図7及び図9に示すように、スプライス端子20の長手方向の全長に亘って同じ形状となっている。このため、圧着工程においてアンビル61とクリンパ62の間に形成される成形空間S2の断面形状は、スプライス端子20の長手方向(芯線11A,12Aの長さ方向)の全長に亘って同じ形状となっている。 In this embodiment, the cross-sectional shapes of the anvil 61 and the crimper 62 are the same throughout the entire length of the splice terminal 20 as shown in FIGS. For this reason, the cross-sectional shape of the molding space S2 formed between the anvil 61 and the crimper 62 in the crimping process is the same shape over the entire length in the longitudinal direction of the splice terminal 20 (the length direction of the core wires 11A and 12A). ing.
 圧着後の一対の第1ワイヤーバレル部30及び一対の第2ワイヤーバレル部40の外形は、成形空間S2の形状に倣う形状となる。つまり、圧着後の一対の第1ワイヤーバレル部30の外形及び一対の第2ワイヤーバレル部40の外形は、ほぼ同じである。これに対して、本実施形態では、第1ワイヤーバレル部30の延出長さL1は第2ワイヤーバレル部40の延出長さL2に比べて大きい値で設定されている。 The outer shape of the pair of first wire barrel portions 30 and the pair of second wire barrel portions 40 after the crimping has a shape that follows the shape of the molding space S2. That is, the outer shape of the pair of first wire barrel portions 30 after crimping and the outer shape of the pair of second wire barrel portions 40 are substantially the same. On the other hand, in this embodiment, the extension length L1 of the first wire barrel part 30 is set to a larger value than the extension length L2 of the second wire barrel part 40.
 このため、芯線11A,12Aにおいて、一対の第1ワイヤーバレル部30,30によって圧縮された部分の断面積(図7参照)は、一対の第2ワイヤーバレル部40,40によって圧縮された部分の断面積(図9参照)よりも小さくなる。つまり、一対の第1ワイヤーバレル部30,30は、一対の第2ワイヤーバレル部40,40(低圧縮部)に比べて芯線11A,12Aを高圧縮する高圧縮部となっている。なお、ここで言う高圧縮とは、(圧縮後の芯線の断面積)/(圧縮前の芯線の断面積)×100(%)を圧縮率とした場合において、圧縮率の値がより小さいことを意味する。 For this reason, in core wire 11A, 12A, the cross-sectional area (refer FIG. 7) of the part compressed by a pair of 1st wire barrel part 30 and 30 is a part of the part compressed by a pair of 2nd wire barrel part 40,40. It becomes smaller than the cross-sectional area (see FIG. 9). That is, the pair of first wire barrel portions 30 and 30 is a high compression portion that highly compresses the core wires 11A and 12A compared to the pair of second wire barrel portions 40 and 40 (low compression portion). The high compression mentioned here means that the compression ratio is smaller when (compression area of core wire after compression) / (cross-sectional area of core wire before compression) × 100 (%) is the compression ratio. Means.
 次に、本実施形態の効果について説明する。一対の第1ワイヤーバレル部30,30と一対の第2ワイヤーバレル部40,40とを圧着治具60で一括して圧着すると、延出長さが大きい一対の第1ワイヤーバレル部30,30が、一対の第2ワイヤーバレル部40,40に比べて、芯線11A,12Aをより強く圧縮することになる。この結果、一対の第1ワイヤーバレル部30,30(高圧縮部)によって圧縮される部分においては、芯線11A,12Aの表面の酸化被膜が破壊され、新生面が露出することで、芯線11A,12A間の電気抵抗、及び芯線11A,12Aとスプライス端子20との間の電気抵抗を小さくすることができる。一方、一対の第2ワイヤーバレル部40,40(低圧縮部)においては、比較的弱い圧縮力で芯線11A,12Aを圧縮することになるため、芯線の損傷をより確実に抑制することができ、スプライス端子20の芯線11A,12Aに対する保持力を確保することができる。 Next, the effect of this embodiment will be described. When the pair of first wire barrel portions 30 and 30 and the pair of second wire barrel portions 40 and 40 are collectively crimped by the crimping jig 60, the pair of first wire barrel portions 30 and 30 having a large extension length. However, compared with a pair of 2nd wire barrel parts 40 and 40, core wire 11A, 12A is compressed more strongly. As a result, in the portion compressed by the pair of first wire barrel portions 30 and 30 (high compression portion), the oxide film on the surface of the core wires 11A and 12A is destroyed and the new surface is exposed, whereby the core wires 11A and 12A. The electrical resistance between the core wires 11A and 12A and the splice terminal 20 can be reduced. On the other hand, since the core wires 11A and 12A are compressed with a relatively weak compressive force in the pair of second wire barrel portions 40 and 40 (low compression portions), damage to the core wires can be more reliably suppressed. The holding force of the splice terminal 20 with respect to the core wires 11A and 12A can be ensured.
 このように、上記構成によれば、従来の圧着工程と同様の工程で高圧縮部を設けることができる。このため、高圧縮部を設けるためにワイヤーバレルに他のバレル部を重ねる作業を行うことなく、芯線に対する保持力を確保しつつ、芯線に係る電気抵抗を小さくすることができる。また、ワイヤーバレルに他のバレル部を重ねる構成では、ワイヤーバレルと他のバレル部とを継手部で連結する必要がある。このため、ワイヤーバレルにおいて継手部が重なる部分は、高圧縮部になってしまう。つまり、所定の箇所のみに高圧縮部を設けることが困難となる。これに対して、本実施形態では、所定の箇所のみを高圧縮部にすることができる。 Thus, according to the above configuration, the high compression portion can be provided in the same process as the conventional crimping process. For this reason, the electrical resistance concerning a core wire can be made small, ensuring the retention strength with respect to a core wire, without performing the operation | work which overlaps another barrel part on a wire barrel in order to provide a high compression part. Moreover, in the structure which overlaps another barrel part on a wire barrel, it is necessary to connect a wire barrel and another barrel part with a coupling part. For this reason, the part which a joint part overlaps in a wire barrel will turn into a high compression part. That is, it is difficult to provide a high compression portion only at a predetermined location. On the other hand, in this embodiment, only a predetermined part can be made into a high compression part.
 また、本実施形態のスプライス端子20は、本線11の中間部において露出された芯線11Aと、分岐線12の芯線12Aと、を接続するものであって、一対の第2ワイヤーバレル部40,40は、芯線11Aの延び方向において、一対の第1ワイヤーバレル部30,30の両側に1組ずつ配されている。 Further, the splice terminal 20 of the present embodiment connects the core wire 11A exposed at the intermediate portion of the main wire 11 and the core wire 12A of the branch wire 12, and is a pair of second wire barrel portions 40, 40. Are arranged on both sides of the pair of first wire barrel portions 30 in the extending direction of the core wire 11A.
 本線11の中間部に分岐線12を接続した場合、接続部分である芯線11A,12Aには、本線11における延び方向の両側からそれぞれ荷重が作用することが考えられる。上記構成のように、比較的弱い圧縮力で芯線を圧縮する一対の第2ワイヤーバレル部40,40を一対の第1ワイヤーバレル部30,30の両側に配することで、本線11における延び方向の両側からそれぞれ荷重が作用した場合において、芯線の損傷をより確実に回避することができる。 When the branch line 12 is connected to the middle part of the main line 11, it is conceivable that loads are applied to the core lines 11 </ b> A and 12 </ b> A that are connection parts from both sides in the extending direction of the main line 11. As in the above-described configuration, the pair of second wire barrel portions 40 and 40 that compress the core wire with a relatively weak compressive force are arranged on both sides of the pair of first wire barrel portions 30 and 30, thereby extending in the main line 11. In the case where loads are applied from both sides, damage to the core wire can be avoided more reliably.
 また、芯線11A,12Aがアルミニウム又はアルミニウム合金からなる場合、芯線の表面には酸化被膜(絶縁性の被膜)が比較的形成されやすい。本実施形態では高圧縮部を設けることで酸化被膜を破壊することができるため、芯線11A,12Aがアルミニウム又はアルミニウム合金である場合に有効である。 Further, when the core wires 11A, 12A are made of aluminum or an aluminum alloy, an oxide film (insulating film) is relatively easily formed on the surface of the core wire. In this embodiment, since the oxide film can be broken by providing the high compression portion, it is effective when the core wires 11A and 12A are aluminum or an aluminum alloy.
 また、本実施形態では、第1ワイヤーバレル部30と第2ワイヤーバレル部40の間に隙間S1が生じ、その分だけスプライス端子20の長さが大きくなる。スプライス端子は、ハウジングに収容せずに用いる場合が多く、ハウジングに収容することを前提とした圧着端子に比べて長さの制約が少ないことから、本実施形態の構成を容易に適用することができる。 Further, in the present embodiment, a gap S1 is generated between the first wire barrel portion 30 and the second wire barrel portion 40, and the length of the splice terminal 20 is increased accordingly. The splice terminal is often used without being accommodated in the housing, and the length of the splice terminal is less limited than that of the crimp terminal that is assumed to be accommodated in the housing. Therefore, the configuration of this embodiment can be easily applied. it can.
 また、圧着端子において高圧縮部を形成する方法としては、例えば、高圧縮部にしたい部分においては、アンビルとクリンパの間隔を部分的に小さくする方法が考えられる。しかしながら、このような方法では、クリンパの構造が複雑になってしまいコストが増大する。本実施形態では、第1ワイヤーバレル部30の長さを変えることで高圧縮部を設けることができるから、クリンパの構造を変える必要がなく、好適である。 Further, as a method of forming the high compression portion in the crimp terminal, for example, in a portion where the high compression portion is desired, a method of partially reducing the interval between the anvil and the crimper is conceivable. However, in such a method, the structure of the crimper becomes complicated and the cost increases. In this embodiment, since the high compression part can be provided by changing the length of the 1st wire barrel part 30, it is not necessary to change the structure of a crimper, and is suitable.
 <実施形態2>
 実施形態2を図10によって説明する。本実施形態に係る端子付き電線110は、図10に示すように、電線111と、電線111の端末に接続された雌端子120(圧着端子)と、を備える。電線111は、芯線111Aと、この芯線11Aを被覆する合成樹脂製の絶縁被覆111Bとを備えた周知の構成のアルミニウム電線である。
<Embodiment 2>
A second embodiment will be described with reference to FIG. As shown in FIG. 10, the electric wire with terminal 110 according to the present embodiment includes an electric wire 111 and a female terminal 120 (crimp terminal) connected to the terminal of the electric wire 111. The electric wire 111 is an aluminum electric wire having a known configuration provided with a core wire 111A and an insulating coating 111B made of synthetic resin that covers the core wire 11A.
 雌端子120は、底板部121と、絶縁被覆111Bに外側から巻き付くように圧着される一対のインシュレーションバレル部122と、一対の第1ワイヤーバレル部130と、一対の第2ワイヤーバレル部140と、雄端子(図示せず)と嵌合して電気的に接続される接続部123と、を備える。なお、図10では、一対のバレル部122,130,140のうち一方側のバレル部122,130,140のみを図示している。 The female terminal 120 includes a bottom plate portion 121, a pair of insulation barrel portions 122 that are crimped so as to be wound around the insulating coating 111B from the outside, a pair of first wire barrel portions 130, and a pair of second wire barrel portions 140. And a connection part 123 that is fitted and electrically connected to a male terminal (not shown). In FIG. 10, only one barrel portion 122, 130, 140 of the pair of barrel portions 122, 130, 140 is illustrated.
 本実施形態では、低圧縮部である一対の第2ワイヤーバレル部140が、一対の第1ワイヤーバレル部130に比べて、電線111が引き出される側(図10の右側)に配されている。これにより、電線111に荷重が作用した場合において、芯線の損傷をより確実に回避することができる。 In the present embodiment, the pair of second wire barrel portions 140 that are low compression portions are arranged on the side from which the electric wire 111 is drawn (on the right side in FIG. 10) as compared to the pair of first wire barrel portions 130. Thereby, when a load acts on the electric wire 111, damage to the core wire can be avoided more 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)芯線及び圧着端子の材質は、上記実施形態で例示したものに限定されず適宜変更可能である。例えば、芯線を銅電線としてもよい。また、圧着端子を例えばアルミニウム又はアルミニウム合金としてもよい。また、圧着端子がスプライス端子である場合には、絶縁物であってもよい。
 (2)上記実施形態では、第1ワイヤーバレル部30の幅が第2ワイヤーバレル部40の幅よりも小さいものを例示したが、これに限定されない。第1ワイヤーバレル部30の幅と第2ワイヤーバレル部40の幅とが同じ値で設定されていてもよいし、第1ワイヤーバレル部30の幅が第2ワイヤーバレル部40の幅よりも大きくてもよい。
 (3)電線の数は、上記実施形態で例示したものに限定されず、3本以上であってもよい。また、スプライス端子を基準として一方側に延びる電線と、他方側に延びる電線とを互いに接続する構成としてもよい。
 (4)上記実施形態では、第1ワイヤーバレル部30及び第2ワイヤーバレル部40が底板部21の両側部から芯線11A,12Aの延び方向と直交する方向にそれぞれ延出されている構成を例示したが、これに限定されない。第1ワイヤーバレル部30及び第2ワイヤーバレル部40の延設方向は、芯線11A,12Aの延び方向に対して交差していればよい。
 (5)圧着端子の種類は、上記実施形態で例示したものに限定されない。例えば、圧着端子を雄タブを有する雄端子や、金属板材に貫通孔が形成されたいわゆるLA端子としてもよい。
 (6)上記実施形態で例示した圧着端子にセレーションが設けられていてもよい。
<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 material of a core wire and a crimp terminal is not limited to what was illustrated by the said embodiment, It can change suitably. For example, the core wire may be a copper wire. The crimp terminal may be made of aluminum or an aluminum alloy, for example. Further, when the crimp terminal is a splice terminal, an insulator may be used.
(2) In the said embodiment, although the width | variety of the 1st wire barrel part 30 was illustrated smaller than the width | variety of the 2nd wire barrel part 40, it is not limited to this. The width of the first wire barrel part 30 and the width of the second wire barrel part 40 may be set to the same value, and the width of the first wire barrel part 30 is larger than the width of the second wire barrel part 40. May be.
(3) The number of electric wires is not limited to that exemplified in the above embodiment, and may be three or more. Moreover, it is good also as a structure which mutually connects the electric wire extended on the one side and the electric wire extended on the other side on the basis of a splice terminal.
(4) In the said embodiment, the structure by which the 1st wire barrel part 30 and the 2nd wire barrel part 40 are each extended from the both sides of the baseplate part 21 in the direction orthogonal to the extension direction of core wire 11A, 12A is illustrated. However, it is not limited to this. The extending direction of the 1st wire barrel part 30 and the 2nd wire barrel part 40 should just cross | intersect with the extending direction of core wire 11A, 12A.
(5) The type of crimp terminal is not limited to that exemplified in the above embodiment. For example, the crimp terminal may be a male terminal having a male tab, or a so-called LA terminal in which a through hole is formed in a metal plate material.
(6) Serrations may be provided on the crimp terminals exemplified in the above embodiment.
10,110:端子付き電線
11:本線(2本の電線のうち一方の電線)
11A,12A,111A:芯線
11B,12B,111B:絶縁被覆
12:分岐線(2本の電線のうち他方の電線)
20:スプライス端子(圧着端子)
21,121:底板部
30,130:第1ワイヤーバレル部
40,140:第2ワイヤーバレル部
110:電線
120:雌端子(圧着端子)
L1:第1ワイヤーバレル部の底板部からの延出長さ
L2:第2ワイヤーバレル部の底板部からの延出長さ
10, 110: Electric wire with terminal 11: Main wire (one of the two electric wires)
11A, 12A, 111A: Core wires 11B, 12B, 111B: Insulation coating 12: Branch wire (the other of the two wires)
20: Splice terminal (crimp terminal)
21, 121: Bottom plate portion 30, 130: First wire barrel portion 40, 140: Second wire barrel portion 110: Electric wire 120: Female terminal (crimp terminal)
L1: Extension length from the bottom plate portion of the first wire barrel portion L2: Extension length from the bottom plate portion of the second wire barrel portion

Claims (4)

  1.  芯線と前記芯線を被覆する絶縁被覆とを備える電線に圧着される圧着端子であって、
     前記電線において前記絶縁被覆から露出された前記芯線が配置される底板部と、
     前記底板部の両側部から前記芯線の延び方向と交差する方向にそれぞれ延出されると共に、前記芯線に巻き付くようにして前記芯線を圧縮しながら圧着される一対の第1ワイヤーバレル部と、
     前記底板部の両側部から前記芯線の延び方向と交差する方向にそれぞれ延出されると共に、前記芯線に巻き付くようにして前記芯線を圧縮しながら圧着される一対の第2ワイヤーバレル部と、を備え、
     前記第1ワイヤーバレル部の前記底板部からの延出長さは、前記第2ワイヤーバレル部の前記底板部からの延出長さよりも大きい、圧着端子。
    A crimp terminal to be crimped to an electric wire comprising a core wire and an insulating coating covering the core wire,
    A bottom plate portion on which the core wire exposed from the insulating coating is disposed in the electric wire;
    A pair of first wire barrel portions that are respectively extended from both side portions of the bottom plate portion in a direction intersecting with the extending direction of the core wire and are compressed while compressing the core wire so as to be wound around the core wire;
    A pair of second wire barrel portions that are respectively extended from both side portions of the bottom plate portion in a direction intersecting with the extending direction of the core wire and are compressed while compressing the core wire so as to be wound around the core wire. Prepared,
    The extension terminal of the first wire barrel part from the bottom plate part is a crimp terminal larger than the extension length of the second wire barrel part from the bottom plate part.
  2.  前記圧着端子がスプライス端子である請求項1に記載の圧着端子。 The crimp terminal according to claim 1, wherein the crimp terminal is a splice terminal.
  3.  前記電線と、
     請求項1又は請求項2に記載の圧着端子と、を備え、
     前記一対の第1ワイヤーバレル部は、前記一対の第2ワイヤーバレル部に比べて前記芯線を高圧縮する高圧縮部である端子付き電線。
    The electric wire;
    A crimp terminal according to claim 1 or 2,
    The pair of first wire barrel portions is a terminal-attached electric wire that is a high compression portion that highly compresses the core wire compared to the pair of second wire barrel portions.
  4.  少なくとも2本の前記電線と、
     2組の前記一対の第2ワイヤーバレル部と、を備え、
     前記圧着端子は、前記2本の前記電線のうち一方の電線の中間部において露出された前記芯線と、前記2本の前記電線のうち他方の電線の前記芯線と、を接続するスプライス端子とされ、
     前記一対の第2ワイヤーバレル部は、前記一方の電線の前記芯線の延び方向において、前記一対の第1ワイヤーバレル部の両側に1組ずつ配されている請求項3に記載の端子付き電線。
    At least two of the wires;
    Two sets of the pair of second wire barrel parts,
    The crimp terminal is a splice terminal that connects the core wire exposed at an intermediate portion of one of the two electric wires and the core wire of the other of the two electric wires. ,
    4. The terminal-attached electric wire according to claim 3, wherein one pair of the pair of second wire barrel portions is arranged on both sides of the pair of first wire barrel portions in the extending direction of the core wire of the one electric wire.
PCT/JP2017/039479 2016-11-16 2017-11-01 Crimp terminal and terminal-equipped electric wire WO2018092585A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5894271U (en) * 1981-12-21 1983-06-25 富士通株式会社 Cable connection connector contacts
JPH0584033U (en) * 1992-04-16 1993-11-12 矢崎総業株式会社 Crimp terminal
JPH09129275A (en) * 1995-11-02 1997-05-16 Yazaki Corp Jointing structure for joint terminal and covered wire, and crimping jig therefor
JP2015076238A (en) * 2013-10-08 2015-04-20 矢崎総業株式会社 Crimping terminal and caulking jig of crimping terminal
JP2015097142A (en) * 2013-11-15 2015-05-21 株式会社オートネットワーク技術研究所 Intermediate crimp terminal and splice structure
JP2016146250A (en) * 2015-02-06 2016-08-12 株式会社オートネットワーク技術研究所 Manufacturing method of terminal fitting with wire, crimping jig, and terminal fitting with wire

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5894271U (en) * 1981-12-21 1983-06-25 富士通株式会社 Cable connection connector contacts
JPH0584033U (en) * 1992-04-16 1993-11-12 矢崎総業株式会社 Crimp terminal
JPH09129275A (en) * 1995-11-02 1997-05-16 Yazaki Corp Jointing structure for joint terminal and covered wire, and crimping jig therefor
JP2015076238A (en) * 2013-10-08 2015-04-20 矢崎総業株式会社 Crimping terminal and caulking jig of crimping terminal
JP2015097142A (en) * 2013-11-15 2015-05-21 株式会社オートネットワーク技術研究所 Intermediate crimp terminal and splice structure
JP2016146250A (en) * 2015-02-06 2016-08-12 株式会社オートネットワーク技術研究所 Manufacturing method of terminal fitting with wire, crimping jig, and terminal fitting with wire

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