WO2015053315A1 - Crimp terminal - Google Patents
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- WO2015053315A1 WO2015053315A1 PCT/JP2014/076950 JP2014076950W WO2015053315A1 WO 2015053315 A1 WO2015053315 A1 WO 2015053315A1 JP 2014076950 W JP2014076950 W JP 2014076950W WO 2015053315 A1 WO2015053315 A1 WO 2015053315A1
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- core wire
- crimping
- crimp terminal
- crimping portion
- terminal
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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
- H01R4/183—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 crimp terminal connected to an electric wire.
- the electric wire W connecting the crimp terminal 110 includes a core wire 101 composed of a plurality of strands 101 a and an insulating sheath 102 covering the outer periphery of the core wire 101. At the tip end side of the electric wire W, the insulating sheath 102 is removed and the core wire 101 is exposed.
- the crimp terminal 110 has a mating terminal connection part 111 and a wire connection part 115.
- the electric wire connecting portion 115 includes a core wire crimping portion 116 and an outer skin crimping portion 117.
- the core wire crimping part 116 has a base part 116a and a pair of caulking piece parts 116b extending from both sides of the base part 116a.
- Three long grooves (serrations) 118 are formed on the inner surfaces of the base portion 116 a and the pair of caulking pieces 116 b of the core wire crimping portion 116.
- the outer skin crimping part 117 has a base part 117a and a pair of caulking piece parts 117b extending from both sides of the base part 117a.
- the crimp terminal 110 crimps and crimps the core wire 101 exposed by the core wire crimping portion 116, and crimps and crimps the insulating sheath 102 by the outer skin crimping portion 117.
- the core wire crimping portion 116 is pressed by a crimping jig (not shown), and a compressive force is transmitted to the core wire 101 through the plastically deformed core wire crimping portion 116. Accordingly, since the external force from the crimping jig is also used for plastic deformation of the core wire crimping portion 116, the compressive force acting on the core wire 101 is reduced accordingly.
- the compressive force on the core wire 101 is low, no adhesion occurs or the occurrence of adhesion is insufficient. If the adhesion does not occur or the occurrence of the adhesion is insufficient, the conduction characteristic between the strands 101a is not improved, and there is a problem that the electrical resistance at the electrical connection point is increased.
- an object of the present invention is to provide a crimp terminal that can reduce the electrical resistance at an electrical connection location with an electric wire.
- the crimp terminal of the present invention is a crimp terminal provided with a mating terminal connection portion and a wire connection portion provided with a core wire crimp portion for crimping a core wire composed of a plurality of strands of an electric wire, and at least of the core wire crimp portion
- the crimp terminal is characterized in that a partial region is provided with a thickness thinner than that of the mating terminal connection portion.
- the crimp terminal of the present invention may be one in which the entire area of the core wire crimp part is thinner than the counterpart terminal connection part.
- the present invention when crimping the core wire crimping portion, a small crimping force is sufficient for the crimping deformation of the core wire crimping portion itself, so that a large crimping force can be applied to the core wire itself. Therefore, the occurrence of adhesion is promoted by the generation of a new surface due to the elongation of each strand and the action of a large compressive force on each strand, and the conduction characteristics between the strands are improved. From the above, the electrical resistance at the electrical connection point is reduced.
- FIG. 1 is a perspective view of a conventional example before a wire is crimped to a crimp terminal.
- FIG. 2 is a side view of a crimp terminal in which a wire is crimped, showing a conventional example.
- FIG. 3 shows a conventional example and is a cross-sectional view taken along line III-III in FIG.
- FIG. 4 is a perspective view showing an embodiment of the present invention before an electric wire is crimped to a crimp terminal.
- FIG. 5: A is a side view of the crimp terminal which showed one Embodiment of this invention and crimped
- FIG. 5B shows an embodiment of the present invention, and is a cross-sectional view taken along the line VB-VB of FIG. 5A.
- FIG. 5B shows an embodiment of the present invention, and is a cross-sectional view taken along the line VB-VB of FIG. 5A.
- FIG. 6A shows an embodiment of the present invention and is a development view of the core wire crimping portion.
- FIG. 6B shows an embodiment of the present invention, and is a side view of a developed state of the core wire crimping portion.
- FIG. 7 is a perspective view of a caulking jig according to an embodiment of the present invention.
- FIG. 8 is a side view illustrating an embodiment of the present invention and illustrating a caulking process.
- the electric wire W is composed of a core wire 1 composed of a plurality of strands 1a and an insulating sheath 2 covering the outer periphery of the core wire 1.
- the insulating sheath 2 is removed and the core wire 1 is exposed.
- the core wire 1 is composed of a large number of strands 1a made of aluminum or aluminum alloy (hereinafter referred to as aluminum), and the numerous strands 1a are twisted together. That is, the electric wire W is an aluminum electric wire.
- the crimp terminal 10 is made of a copper alloy, and is formed by bending a plate cut into a predetermined shape.
- the crimp terminal 10 has a mating terminal connection portion 11 and a wire connection portion 15.
- the electric wire connection portion 15 includes a core wire crimping portion 16 and an outer skin crimping portion 17.
- the core wire crimping part 16 has a base part 16a and a pair of caulking piece parts 16b extending from both sides of the base part 16a.
- Numerous serrations 18 are formed on the base portion 16a of the core wire crimping portion 16 and the inner surfaces (surfaces to which the core wire 1 is crimped) of the pair of caulking piece portions 16b.
- Each serration 18 has a round groove shape when viewed from above.
- the thickness t1 of the core wire crimping portion 16 is provided thinner than other thicknesses t2 (> t1) such as the mating terminal connecting portion 11.
- the outer skin crimping portion 17 includes a base portion 17a and a pair of caulking piece portions 17b extending from both sides of the base portion 17a.
- the crimp terminal 10 crimps and crimps the core wire 1 exposed by the core wire crimping portion 16, and crimps and crimps the insulating sheath 2 by the outer skin crimping portion 17.
- the crimp terminal 10 is crimped by a crimping jig 20 shown in FIG.
- the caulking jig 20 has a caulking groove 21 having a final caulking outer peripheral shape on the caulking tip side.
- FIG. 8 when the pair of core wire crimping pieces 16 b are pressed from above by the crimping jig 20, the pair of crimping pieces 16 b are plastically deformed along the crimping grooves 21.
- the thickness of the core wire crimping portion 16 is thin, and a small crimping force is sufficient for the caulking deformation of the core wire crimping portion 16 itself, so that a large crimping force can be applied to the core wire 1 itself. Therefore, the occurrence of adhesion is promoted by the generation of a new surface due to the elongation of each strand 1a and the action of a large compressive force on each strand 1a, and the conduction characteristics between the strands 1a are improved. From the above, the electrical resistance at the electrical connection point is reduced.
- the core wire crimping portion 16 Since the thickness of the entire area of the core wire crimping portion 16 is thinner than that of the mating terminal connecting portion 11, the core wire crimping portion 16 is more efficiently crimped to the core wire 1 itself than when the thickness of a partial region of the core wire crimping portion 16 is made thinner than the mating terminal connecting portion 11. Since a force can be applied, the occurrence of adhesion can be surely promoted and the conduction characteristics between the strands 1a can be improved. As mentioned above, the electrical resistance of an electrical connection location can be reduced more efficiently.
- a serration 18 is provided in the core wire crimping portion 16. Therefore, in the caulking of the core wire crimping portion 16, the strand 1a of the core wire 1 enters the serration 18, and the strand 1a is stretched due to the bending of the strand 1a to generate a new surface. And adhesion between the strand 1a and the core wire crimping part 16 (crimp terminal 10) is generated and promoted. This also makes it possible to reduce the electrical resistance at the electrical connection point.
- the core wire 1 is made of aluminum.
- the aluminum wire 1a has a harder oxide film on the surface than the copper alloy. For this reason, the aluminum core wire 1 has a problem of an increase in electrical resistance due to the conduction resistance between the strands 1a.
- the conduction resistance between the strands 1a can be reduced.
- the aluminum core wire 1 is softer and more easily stretched than a copper alloy product, but for the reasons described above, the compressive force of the core wire crimping portion 16 by crimping can be efficiently applied to the core wire 1.
- the present invention is particularly effective for aluminum electric wires.
- the crimp terminal 10 is formed so that the thickness of the entire region of the core wire crimping portion 16 is made thinner than the counterpart terminal connecting portion 11. .
- the crimping piece portion 16b (partial region of the core wire crimping portion) is made thinner than that of the mating terminal connection portion 11, the crimping piece is obtained without substantially reducing the strength of the core wire crimping portion 16 (base portion 16a).
- a large crimping force can be applied to the core wire 1 itself by the caulking deformation of the portion 16b. For this reason, generation
- both the core wire crimping portion 16 and the outer skin connection portion 17 may be formed thin relative to the mating terminal connection portion 11.
- the serration 18 is a groove, but may be a protrusion, or may be both a groove and a protrusion. That is, in this specification, the serration means a groove or a convex portion formed on the surface.
- the core wire 1 is made of aluminum, but the present invention can also be applied to a core wire 1 other than aluminum (for example, made of copper alloy).
- the present invention when crimping the core wire crimping portion, a small crimping force is sufficient for the crimping deformation of the core wire crimping portion itself, so that a large crimping force can be applied to the core wire itself. Therefore, the occurrence of adhesion is promoted by the generation of a new surface due to the elongation of each strand and the action of a large compressive force on each strand, and the conduction characteristics between the strands are improved. From the above, the electrical resistance at the electrical connection point is reduced.
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- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
Abstract
A crimp terminal (10) that has a counterpart-terminal connection section (11) and a wire connection section (15) provided with a conductor-crimping section (16) that crimps a conductor (1) of an electric cable (W), said conductor (1) comprising a plurality of strands (1a). At least part of the conductor-crimping section (16) is thinner than the counterpart-terminal connection section (11).
Description
本発明は、電線に接続する圧着端子に関する。
The present invention relates to a crimp terminal connected to an electric wire.
従来の圧着端子として、特許文献１に開示されたものがある。図１～図３に示すように、圧着端子１１０を接続する電線Ｗは、複数の素線１０１ａからなる芯線１０１と芯線１０１の外周を覆う絶縁外皮１０２とから構成されている。電線Ｗの先端側は、絶縁外皮１０２が除去されて芯線１０１が露出されている。
As a conventional crimp terminal, there is one disclosed in Patent Document 1. As shown in FIGS. 1 to 3, the electric wire W connecting the crimp terminal 110 includes a core wire 101 composed of a plurality of strands 101 a and an insulating sheath 102 covering the outer periphery of the core wire 101. At the tip end side of the electric wire W, the insulating sheath 102 is removed and the core wire 101 is exposed.
圧着端子１１０は、相手端子接続部１１１と電線接続部１１５とを有する。電線接続部１１５は、芯線圧着部１１６と外皮圧着部１１７とを有する。芯線圧着部１１６は、基底部１１６ａとこの基底部１１６ａの両側から延設された一対の加締め片部１１６ｂとを有する。芯線圧着部１１６の基底部１１６ａと一対の加締め片部１１６ｂの内面には、三本の長溝（セレーション）１１８が形成されている。外皮圧着部１１７は、基底部１１７ａとこの基底部１１７ａの両側から延設された一対の加締め片部１１７ｂとを有する。
The crimp terminal 110 has a mating terminal connection part 111 and a wire connection part 115. The electric wire connecting portion 115 includes a core wire crimping portion 116 and an outer skin crimping portion 117. The core wire crimping part 116 has a base part 116a and a pair of caulking piece parts 116b extending from both sides of the base part 116a. Three long grooves (serrations) 118 are formed on the inner surfaces of the base portion 116 a and the pair of caulking pieces 116 b of the core wire crimping portion 116. The outer skin crimping part 117 has a base part 117a and a pair of caulking piece parts 117b extending from both sides of the base part 117a.
圧着端子１１０は、芯線圧着部１１６によって露出された芯線１０１を加締め圧着し、外皮圧着部１１７によって絶縁外皮１０２を加締め圧着している。
The crimp terminal 110 crimps and crimps the core wire 101 exposed by the core wire crimping portion 116, and crimps and crimps the insulating sheath 102 by the outer skin crimping portion 117.
ところで、加締め圧着は、加締め治具（図示せず）で芯線圧着部１１６を押圧し、塑性変形した芯線圧着部１１６を介して芯線１０１に圧縮力が伝達される。従って、加締め治具からの外力は、芯線圧着部１１６の塑性変形にも使用されるため、その分だけ芯線１０１に作用する圧縮力は低下する。芯線１０１への圧縮力が低いと、凝着が発生せず、若しくは、凝着の発生が不足する。凝着が発生しない、若しくは、凝着の発生が不足すると、素線１０１ａ間の導通特性が向上しないため、電気接続箇所の電気抵抗が高くなるという問題があった。
By the way, in crimping crimping, the core wire crimping portion 116 is pressed by a crimping jig (not shown), and a compressive force is transmitted to the core wire 101 through the plastically deformed core wire crimping portion 116. Accordingly, since the external force from the crimping jig is also used for plastic deformation of the core wire crimping portion 116, the compressive force acting on the core wire 101 is reduced accordingly. When the compressive force on the core wire 101 is low, no adhesion occurs or the occurrence of adhesion is insufficient. If the adhesion does not occur or the occurrence of the adhesion is insufficient, the conduction characteristic between the strands 101a is not improved, and there is a problem that the electrical resistance at the electrical connection point is increased.
そこで、本発明は、前記した課題を解決すべくなされたものであり、電線との電気接続箇所における電気抵抗を低減できる圧着端子を提供することを目的とする。
Therefore, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide a crimp terminal that can reduce the electrical resistance at an electrical connection location with an electric wire.
本発明の圧着端子は、相手端子接続部と電線の複数の素線からなる芯線を圧着する芯線圧着部が設けられた電線接続部と、を備えた圧着端子であって、芯線圧着部の少なくとも一部領域が相手端子接続部より薄い肉厚に設けられたことを特徴とする圧着端子である。
The crimp terminal of the present invention is a crimp terminal provided with a mating terminal connection portion and a wire connection portion provided with a core wire crimp portion for crimping a core wire composed of a plurality of strands of an electric wire, and at least of the core wire crimp portion The crimp terminal is characterized in that a partial region is provided with a thickness thinner than that of the mating terminal connection portion.
本発明の圧着端子は、芯線圧着部の全領域が相手端子接続部より薄い肉厚に設けられたものであっても良い。
The crimp terminal of the present invention may be one in which the entire area of the core wire crimp part is thinner than the counterpart terminal connection part.
本発明によれば、芯線圧着部の加締めに際して、芯線圧着部自体の加締め変形には、小さな加締め力で足りるため、芯線自体に大きな圧着力を作用させることができる。従って、各素線の伸びによる新生面の発生と各素線への大きな圧縮力の作用とによって、凝着の発生が促進され、素線間の導通特性が向上する。以上より、電気接続箇所の電気抵抗が低減する。
According to the present invention, when crimping the core wire crimping portion, a small crimping force is sufficient for the crimping deformation of the core wire crimping portion itself, so that a large crimping force can be applied to the core wire itself. Therefore, the occurrence of adhesion is promoted by the generation of a new surface due to the elongation of each strand and the action of a large compressive force on each strand, and the conduction characteristics between the strands are improved. From the above, the electrical resistance at the electrical connection point is reduced.
以下、本発明の一実施形態を図面に基づいて説明する。
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
但し、図面は模式的なものであり、装置やシステムの構成等は現実のものとは異なることに留意すべきである。したがって、具体的な構成は以下の説明を参酌して判断すべきものである。また、図面相互間においても互いの構成の異なる部分が含まれていることは勿論である。
However, it should be noted that the drawings are schematic and the configuration of the apparatus and system is different from the actual one. Therefore, a specific configuration should be determined in consideration of the following description. In addition, it is a matter of course that portions having different configurations are included between the drawings.
図４～図８は、本発明の一実施形態を示す。図４～図５Ｂに示すように、電線Ｗは、複数の素線１ａからなる芯線１と、芯線１の外周を覆う絶縁外皮２と、から構成されている。電線Ｗの先端側は、絶縁外皮２が除去されて芯線１が露出されている。芯線１は、アルミニウム製又はアルミニウム合金製（以下、アルミ製）の多数の素線１ａからなり、多数の素線１ａが互いに撚られている。つまり、電線Ｗは、アルミ電線である。
4 to 8 show an embodiment of the present invention. As shown in FIGS. 4 to 5B, the electric wire W is composed of a core wire 1 composed of a plurality of strands 1a and an insulating sheath 2 covering the outer periphery of the core wire 1. At the tip end side of the electric wire W, the insulating sheath 2 is removed and the core wire 1 is exposed. The core wire 1 is composed of a large number of strands 1a made of aluminum or aluminum alloy (hereinafter referred to as aluminum), and the numerous strands 1a are twisted together. That is, the electric wire W is an aluminum electric wire.
圧着端子１０は、銅合金製であり、所定形状に裁断したプレートを折り曲げ加工することによって形成されている。圧着端子１０は、相手端子接続部１１と電線接続部１５とを有する。電線接続部１５は、芯線圧着部１６と外皮圧着部１７とを有する。
The crimp terminal 10 is made of a copper alloy, and is formed by bending a plate cut into a predetermined shape. The crimp terminal 10 has a mating terminal connection portion 11 and a wire connection portion 15. The electric wire connection portion 15 includes a core wire crimping portion 16 and an outer skin crimping portion 17.
芯線圧着部１６は、基底部１６ａと、この基底部１６ａの両側から延設された一対の加締め片部１６ｂと、を有する。芯線圧着部１６の基底部１６ａと一対の加締め片部１６ｂの内面（芯線１が圧着される面）とには、多数のセレーション１８が形成されている。各セレーション１８は、上方から見て丸溝形状である。又、図６Ａ、６Ｂに詳しく示すように、芯線圧着部１６の肉厚ｔ１は、相手端子接続部１１などの他の肉厚ｔ２（＞ｔ１）よりも薄く設けられている。例えば、母材プレートを圧着端子１０の形状に裁断する際に、芯線圧着部１６の箇所のみを最終的な寸法よりも縮小形状に形成し、その縮小形状の芯線圧着部１６のみプレスによって圧延することによって作製する。
The core wire crimping part 16 has a base part 16a and a pair of caulking piece parts 16b extending from both sides of the base part 16a. Numerous serrations 18 are formed on the base portion 16a of the core wire crimping portion 16 and the inner surfaces (surfaces to which the core wire 1 is crimped) of the pair of caulking piece portions 16b. Each serration 18 has a round groove shape when viewed from above. Further, as shown in detail in FIGS. 6A and 6B, the thickness t1 of the core wire crimping portion 16 is provided thinner than other thicknesses t2 (> t1) such as the mating terminal connecting portion 11. For example, when the base material plate is cut into the shape of the crimp terminal 10, only the portion of the core wire crimping portion 16 is formed in a reduced shape from the final dimension, and only the reduced core wire crimping portion 16 is rolled by pressing. To make.
外皮圧着部１７は、基底部１７ａと、この基底部１７ａの両側から延設された一対の加締め片部１７ｂと、を有する。
The outer skin crimping portion 17 includes a base portion 17a and a pair of caulking piece portions 17b extending from both sides of the base portion 17a.
圧着端子１０は、芯線圧着部１６によって露出された芯線１を加締め圧着し、外皮圧着部１７によって絶縁外皮２を加締め圧着している。
The crimp terminal 10 crimps and crimps the core wire 1 exposed by the core wire crimping portion 16, and crimps and crimps the insulating sheath 2 by the outer skin crimping portion 17.
圧着端子１０は、図７に示す加締め治具２０によって圧着される。加締め治具２０は、その加締め先端側に最終的な加締め外周形状の加締め溝２１を有する。図８に示すように、加締め治具２０によって一対の芯線加締め片部１６ｂを上方から押圧すると、加締め溝２１に沿って一対の加締め片部１６ｂが塑性変形される。
The crimp terminal 10 is crimped by a crimping jig 20 shown in FIG. The caulking jig 20 has a caulking groove 21 having a final caulking outer peripheral shape on the caulking tip side. As shown in FIG. 8, when the pair of core wire crimping pieces 16 b are pressed from above by the crimping jig 20, the pair of crimping pieces 16 b are plastically deformed along the crimping grooves 21.
この加締め過程では、芯線圧着部１６の肉厚が薄く、芯線圧着部１６自体の加締め変形には小さな加締め力で足りるため、芯線１自体に大きな圧着力を作用させることができる。従って、各素線１ａの伸びによる新生面の発生と、各素線１ａへの大きな圧縮力の作用とによって凝着の発生が促進され、素線１ａ間の導通特性が向上する。以上より、電気接続箇所の電気抵抗が低減する。
In this caulking process, the thickness of the core wire crimping portion 16 is thin, and a small crimping force is sufficient for the caulking deformation of the core wire crimping portion 16 itself, so that a large crimping force can be applied to the core wire 1 itself. Therefore, the occurrence of adhesion is promoted by the generation of a new surface due to the elongation of each strand 1a and the action of a large compressive force on each strand 1a, and the conduction characteristics between the strands 1a are improved. From the above, the electrical resistance at the electrical connection point is reduced.
芯線圧着部１６の全領域の肉厚が相手端子接続部１１より薄いことによって、芯線圧着部１６の一部領域の肉厚を相手端子接続部１１より薄くする場合より効率良く芯線１自体に圧着力を作用させることができるため、確実に凝着の発生を促進して素線１ａ間の導通特性を向上させることができる。以上より、電気接続箇所の電気抵抗をより効率良く低減することができる。
Since the thickness of the entire area of the core wire crimping portion 16 is thinner than that of the mating terminal connecting portion 11, the core wire crimping portion 16 is more efficiently crimped to the core wire 1 itself than when the thickness of a partial region of the core wire crimping portion 16 is made thinner than the mating terminal connecting portion 11. Since a force can be applied, the occurrence of adhesion can be surely promoted and the conduction characteristics between the strands 1a can be improved. As mentioned above, the electrical resistance of an electrical connection location can be reduced more efficiently.
芯線圧着部１６には、セレーション１８が設けられている。従って、芯線圧着部１６の加締めでは、芯線１の素線１ａがセレーション１８内に入り込み、素線１ａの折れ曲がりによって素線１ａが伸びて新生面が発生するため、素線１ａ間の凝着、及び、素線１ａと芯線圧着部１６（圧着端子１０）との間の凝着が発生し、且つ、促進される。これによっても電気接続箇所の電気抵抗の低減を図ることができる。
A serration 18 is provided in the core wire crimping portion 16. Therefore, in the caulking of the core wire crimping portion 16, the strand 1a of the core wire 1 enters the serration 18, and the strand 1a is stretched due to the bending of the strand 1a to generate a new surface. And adhesion between the strand 1a and the core wire crimping part 16 (crimp terminal 10) is generated and promoted. This also makes it possible to reduce the electrical resistance at the electrical connection point.
又、各素線１ａがセレーション１８に入り込むことによって、芯線１と芯線圧着部１６との間の引っ張り強度（機械的強度）は向上する。
Moreover, the tensile strength (mechanical strength) between the core wire 1 and the core wire crimping | compression-bonding part 16 improves by each strand 1a entering serration 18. FIG.
このように圧着端子１０の一部を改良することによって、電気接続箇所における芯線１の導通特性を向上させることができるため、単線化等に較べてほとんどコストアップなしに電気接続箇所の電気抵抗を低減できる。
By improving a part of the crimp terminal 10 in this way, it is possible to improve the conduction characteristics of the core wire 1 at the electrical connection location, so that the electrical resistance at the electrical connection location can be reduced with almost no increase in cost compared to the single wire. Can be reduced.
この実施形態では、芯線１がアルミ製である。アルミ製の素線１ａは、銅合金製に較べて表面にできる酸化被膜が硬い。そのため、アルミ製の芯線１は、素線１ａ間の導通抵抗による電気抵抗の増加が問題であった。これに対してこの実施形態の圧着端子では、素線１ａ間の導通抵抗を低減できる。アルミ製の芯線１は、銅合金製に較べて柔らかくて伸び易いが、上記した理由によって芯線圧着部１６の加締め圧着による圧縮力を芯線１に効率良く作用させることができる。以上のように、本発明は、特にアルミ電線に有効である。
In this embodiment, the core wire 1 is made of aluminum. The aluminum wire 1a has a harder oxide film on the surface than the copper alloy. For this reason, the aluminum core wire 1 has a problem of an increase in electrical resistance due to the conduction resistance between the strands 1a. On the other hand, in the crimp terminal of this embodiment, the conduction resistance between the strands 1a can be reduced. The aluminum core wire 1 is softer and more easily stretched than a copper alloy product, but for the reasons described above, the compressive force of the core wire crimping portion 16 by crimping can be efficiently applied to the core wire 1. As described above, the present invention is particularly effective for aluminum electric wires.
この実施形態では、芯線圧着部１６の肉厚のみ薄く形成したので、相手端子接続部１１の強度及び外皮圧着部１７の強度を維持しつつ電気接続箇所の電気抵抗の低減を図ることができる。
In this embodiment, since only the thickness of the core wire crimping portion 16 is formed thin, it is possible to reduce the electrical resistance at the electrical connection location while maintaining the strength of the mating terminal connecting portion 11 and the strength of the outer skin crimping portion 17.
（変形例） 実施形態では、圧着端子１０は、相手端子接続部１１に対し、芯線圧着部１６の全領域の肉厚を薄く形成したが、一部領域のみ薄く形成したものであっても良い。
(Modification) In the embodiment, the crimp terminal 10 is formed so that the thickness of the entire region of the core wire crimping portion 16 is made thinner than the counterpart terminal connecting portion 11. .
加締め片部１６ｂ（芯線圧着部の一部領域）の肉厚を相手端子接続部１１より薄く形成する場合、芯線圧着部１６（基底部１６ａ）の強度をほとんど低減することなく、加締め片部１６ｂの加締め変形で芯線１自体に大きな圧着力を作用させることができる。このため、凝着の発生を促進して素線１ａ間の導通特性を向上させることができる。以上より、電気接続箇所の電気抵抗を低減させることができる。
When the thickness of the crimping piece portion 16b (partial region of the core wire crimping portion) is made thinner than that of the mating terminal connection portion 11, the crimping piece is obtained without substantially reducing the strength of the core wire crimping portion 16 (base portion 16a). A large crimping force can be applied to the core wire 1 itself by the caulking deformation of the portion 16b. For this reason, generation | occurrence | production of adhesion can be accelerated | stimulated and the conduction | electrical_connection characteristic between the strands 1a can be improved. As mentioned above, the electrical resistance of an electrical connection location can be reduced.
実施形態では、芯線圧着部１６の肉厚のみ薄く形成したが、相手端子接続部１１に対して芯線圧着部１６及び外皮接続部１７の肉厚を共に薄く形成したものであっても良い。
In the embodiment, only the thickness of the core wire crimping portion 16 is formed thin. However, both the core wire crimping portion 16 and the outer skin connection portion 17 may be formed thin relative to the mating terminal connection portion 11.
実施形態では、セレーション１８は、溝であるが、突部でも良く、又、溝と突部の両方であっても良い。つまり、本明細書では、セレーションとは、面上に形成される溝や凸部を意味する。
In the embodiment, the serration 18 is a groove, but may be a protrusion, or may be both a groove and a protrusion. That is, in this specification, the serration means a groove or a convex portion formed on the surface.
実施形態では、芯線１がアルミ製であるが、本発明はアルミ製以外の芯線１（例えば銅合金製）であっても適用できる。
In the embodiment, the core wire 1 is made of aluminum, but the present invention can also be applied to a core wire 1 other than aluminum (for example, made of copper alloy).
以上、本発明の実施形態について説明したが、これらの実施形態は本発明の理解を容易にするために記載された単なる例示に過ぎず、本発明は当該実施形態に限定されるものではない。本発明の技術的範囲は、上記実施形態で開示した具体的な技術事項に限らず、そこから容易に導きうる様々な変形、変更、代替技術なども含むものである。
As mentioned above, although embodiment of this invention was described, these embodiment is only the mere illustration described in order to make an understanding of this invention easy, and this invention is not limited to the said embodiment. The technical scope of the present invention is not limited to the specific technical matters disclosed in the above embodiment, but includes various modifications, changes, alternative techniques, and the like that can be easily derived therefrom.
本出願は、日本国特許出願第２０１３－２１３５０４号（２０１３年１０月１１日出願）および日本国特許出願第２０１４－２０６１７９号（２０１４年１０月０７日に出願）に基づく優先権を主張しており、この出願の全内容が参照により本願明細書に組み込まれる。
This application claims priority based on Japanese Patent Application No. 2013-213504 (filed on Oct. 11, 2013) and Japanese Patent Application No. 2014-206179 (filed on Oct. 07, 2014). The entire contents of this application are hereby incorporated by reference.
本発明によれば、芯線圧着部の加締めに際して、芯線圧着部自体の加締め変形には、小さな加締め力で足りるため、芯線自体に大きな圧着力を作用させることができる。従って、各素線の伸びによる新生面の発生と、各素線への大きな圧縮力の作用とによって凝着の発生が促進され、素線間の導通特性が向上する。以上より、電気接続箇所の電気抵抗が低減する。
According to the present invention, when crimping the core wire crimping portion, a small crimping force is sufficient for the crimping deformation of the core wire crimping portion itself, so that a large crimping force can be applied to the core wire itself. Therefore, the occurrence of adhesion is promoted by the generation of a new surface due to the elongation of each strand and the action of a large compressive force on each strand, and the conduction characteristics between the strands are improved. From the above, the electrical resistance at the electrical connection point is reduced.
Ｗ 電線 １ 芯線 １ａ 素線 １０ 圧着端子 １１ 相手端子接続部 １６ 芯線圧着部
W electric wire 1 core wire 1a strand 10 crimp terminal 11 mating terminal connection part 16 core wire crimp part
Claims (2)
- 相手端子接続部と、
電線の複数の素線からなる芯線を圧着する芯線圧着部が設けられた電線接続部と、
を備えた圧着端子であって、
前記芯線圧着部の少なくとも一部領域が前記相手端子接続部より薄い肉厚に設けられたことを特徴とする圧着端子。 Mating terminal connection,
A wire connecting portion provided with a core wire crimping portion for crimping a core wire composed of a plurality of wires of the wire;
A crimp terminal comprising:
A crimp terminal, wherein at least a partial region of the core wire crimping portion is provided with a thickness thinner than that of the mating terminal connecting portion. - 請求項１記載の圧着端子であって、
前記芯線圧着部の全領域が前記相手端子接続部より薄い肉厚に設けられたことを特徴とする圧着端子。 The crimp terminal according to claim 1,
A crimp terminal, wherein the entire area of the core wire crimping portion is provided with a thickness thinner than that of the mating terminal connecting portion.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-213504 | 2013-10-11 | ||
| JP2013213504 | 2013-10-11 | ||
| JP2014206179A JP2015097202A (en) | 2013-10-11 | 2014-10-07 | Crimp terminal |
| JP2014-206179 | 2014-10-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015053315A1 true WO2015053315A1 (en) | 2015-04-16 |
Family
ID=52813130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2014/076950 WO2015053315A1 (en) | 2013-10-11 | 2014-10-08 | Crimp terminal |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2015097202A (en) |
| WO (1) | WO2015053315A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06104021A (en) * | 1992-09-18 | 1994-04-15 | Yazaki Corp | Crimping terminal |
| JPH0680263U (en) * | 1993-04-27 | 1994-11-08 | 矢崎総業株式会社 | Crimp terminal |
| WO2010029803A1 (en) * | 2008-09-09 | 2010-03-18 | 住友電装株式会社 | Terminal fitting and electric wire with terminal fitting |
| JP2011044423A (en) * | 2009-07-24 | 2011-03-03 | Sumitomo Wiring Syst Ltd | Crimping terminal fitting and wire with terminal fitting |
-
2014
- 2014-10-07 JP JP2014206179A patent/JP2015097202A/en active Pending
- 2014-10-08 WO PCT/JP2014/076950 patent/WO2015053315A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06104021A (en) * | 1992-09-18 | 1994-04-15 | Yazaki Corp | Crimping terminal |
| JPH0680263U (en) * | 1993-04-27 | 1994-11-08 | 矢崎総業株式会社 | Crimp terminal |
| WO2010029803A1 (en) * | 2008-09-09 | 2010-03-18 | 住友電装株式会社 | Terminal fitting and electric wire with terminal fitting |
| JP2011044423A (en) * | 2009-07-24 | 2011-03-03 | Sumitomo Wiring Syst Ltd | Crimping terminal fitting and wire with terminal fitting |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015097202A (en) | 2015-05-21 |
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