JP5462394B2 - Wire connection method using compression sleeve and compression sleeve - Google Patents
Wire connection method using compression sleeve and compression sleeve Download PDFInfo
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この発明は電線と電線を接続するＣ形の圧縮スリーブを用いた電線の接続方法及び当該圧縮スリーブに関するものである。 The present invention relates to an electric wire connection method using a C-shaped compression sleeve for connecting electric wires to each other, and the compression sleeve.
従来、電線と電線とを接続する電線接続具として、Ｃ形の圧縮スリーブが用いられている。この圧縮スリーブは、その内側に、接続する電線を導入し、この圧縮スリーブの外側から圧縮ペンチ及び圧縮ダイスを使って圧縮し、接続しているものである。 Conventionally, a C-shaped compression sleeve has been used as an electric wire connector for connecting electric wires. In this compression sleeve, an electric wire to be connected is introduced inside, and the compression sleeve is compressed and connected from the outside of the compression sleeve using a compression pliers and a compression die.
この様なＣ型の圧縮スリーブとして、特許文献１に記載されたものが有る。この特許文献１に記載された圧縮スリーブでは、この圧縮スリーブの一側の開口部から電線を入れ、この状態で圧縮スリーブの外側から圧縮ダイスで圧縮させ、電線を一体に把持させる、いわゆる片持力で把持して接続すると言うものである（特許文献１の図５及び図６参照）。
しかしながら、上記従来のＣ形の圧縮スリーブＦの多くは、図１５に示す様に、Ｃ形の側面の開口部１１を上に向けた状態で左右対称の形状をしている。これを圧縮接続する圧縮ペンチ及び油圧圧縮ダイスの形状も概ね左右対称であり、圧縮スリーブＦを圧縮する内空部分は左右対称の形状となっている。 However, many of the conventional C-shaped compression sleeves F have a symmetrical shape with the opening 11 on the side surface of the C-shape facing upward, as shown in FIG. The shapes of the compression pliers and the hydraulic compression dies for compressing and connecting them are also generally symmetrical, and the inner space where the compression sleeve F is compressed has a symmetrical shape.
この圧縮方式では圧縮スリーブＦが圧縮時に変形して開口部１１を形成する両端縁が接触した状態で、圧縮スリーブＦの圧縮部の内空面積が小さくなっていくが、同時に当該圧縮スリーブＦを圧縮する力により電線Ｇの長手方向に圧縮スリーブＦが伸びるかたちとなる。この為、図１６に示す様に、内空面積の減少が抑制され、外径の小さい電線Ｇの接続が出来なかったり、また、例え接続出来たとしても抵抗値が高いなど接続不良を起こしていた。 In this compression method, while the compression sleeve F is deformed at the time of compression and both end edges that form the opening 11 are in contact with each other, the inner space area of the compression portion of the compression sleeve F becomes smaller. The compression sleeve F extends in the longitudinal direction of the electric wire G by the compressing force. For this reason, as shown in FIG. 16, the reduction of the inner space area is suppressed, the connection of the electric wire G having a small outer diameter cannot be made, and even if the connection is made, a connection failure such as a high resistance value is caused. It was.
一方、圧縮スリーブを電線の横並び方向から圧縮する形状とし、圧縮後の内空面積を外径が小さい電線の径に合わせた場合、外径の大きい電線が開口部から入らなかったり、又は、図１７に示す様に、電線Iの外周を圧縮スリーブＦが包含しない場合、これを無理やり圧縮しようとすると、図１８に示す様に、電線Iの一部がはみ出すと言った問題が生じ、結果的に上述と同様、接続可能な電線のサイズの範囲が狭くなると言う事態を招来していた。 On the other hand, when the compression sleeve has a shape that compresses from the side-by-side direction of the electric wires, and the inner space area after compression is matched with the diameter of the electric wires with a small outer diameter, the electric wires with a large outer diameter do not enter from the opening, or As shown in FIG. 17, when the compression sleeve F does not include the outer periphery of the electric wire I, forcibly compressing it causes a problem that a part of the electric wire I protrudes as shown in FIG. In the same manner as described above, there has been a situation where the range of the size of the connectable electric wire is narrowed.
この発明は、これらの点に鑑みて為されたもので、従来のＣ形の圧縮スリーブよりも接続出来る電線の外径範囲を広くした圧縮スリーブを用いた電線の接続方法及び当該圧縮スリーブを提供して上記課題を解決するものである。 The present invention has been made in view of these points, and provides an electric wire connection method using a compression sleeve having a wider outer diameter range of electric wires that can be connected than a conventional C-shaped compression sleeve, and the compression sleeve. Thus, the above problems are solved.
請求項１の発明は、長手方向に対する直角方向の断面形状が、略Ｃ形で開口部を上向きにした場合に略左右対称形状である電線接続用の圧縮スリーブであって、上記開口部を上にした場合の、開口部に相対向した下辺の両側から立設した相対向する二つの立ち上がり部のうち、一方の立ち上がり部の先端を他方の立ち上がり部の先端より低くして短くし、当該圧縮スリーブの中に接続する複数の電線を入れ、作用部の形状が略左右対称の圧縮工具で当該圧縮スリーブを上記開口部を上にした状態で左右方向から挟持し、そのまま当該スリーブを圧縮した際、当該圧縮スリーブの二つの立ち上がり部は相互に近接するように動き、さらに、圧縮すると上記短い立ち上がり部の先端が他方の立ち上がり部の内側面に当って上記開口部を塞ぎ、当該短い立ち上がり部の内側面が上記電線に密着して当該電線を包み込む圧縮スリーブを用いた電線接続方法とした。 The invention of claim 1, the perpendicular cross-sectional shape with respect to the longitudinal direction, a compression sleeve for the wire connections are Ryakuhidari right symmetrical shape when the upward opening substantially C-shaped, the upper the opening Of the two rising parts facing each other on both sides of the lower side opposite to the opening, the tip of one rising part is made lower than the tip of the other rising part, and the compression is performed. When a plurality of electric wires to be connected are inserted into the sleeve, and the compression sleeve is sandwiched from the left and right directions with the opening facing up with a compression tool whose shape of the working portion is substantially bilaterally symmetrical , and the sleeve is compressed as it is , two of the rising portion of the compression sleeve moves so as to be close to each other, further, the tip of the short rise portion when compressed blocks the person I the opening on the inner surface of the other of the rising portion, the The inner surface of the stomach rising portion has a wire connecting method using the compression sleeve enclosing the wire in close contact with the wire.
請求項２の発明は、長手方向に対する直角方向の断面形状が、略Ｃ形で開口部を上向きにした場合に略左右対称形状である電線接続用の圧縮スリーブにおいて、上記開口部を上にした場合の、開口部に相対向した下辺の両側から立設した相対向する二つの立ち上がり部のうち、一方の立ち上がり部の先端を他方の立ち上がり部の先端より低くして短くし、当該圧縮スリーブの中に接続する複数の電線を入れ、作用部の形状が略左右対称の圧縮工具で当該圧縮スリーブを上記開口部を上にした状態で左右方向から挟持し、そのまま当該スリーブを圧縮した際、当該圧縮スリーブの二つの立ち上がり部は相互に近接するように動き、さらに、圧縮すると上記短い立ち上がり部の先端が他方の立ち上がり部の内側面に当って上記開口部を塞ぎ、当該短い立ち上がり部の内側面が上記電線に密着して当該電線を包み込む構成とした圧縮スリーブとした。 According to another aspect of the invention, the perpendicular cross-sectional shape with respect to the longitudinal direction, the compression sleeve for wire connection is Ryakuhidari right symmetrical shape when the opening upwards in a substantially C-shaped, and above the opening Out of the two rising parts facing each other on both sides of the lower side facing the opening, the tip of one rising part is made lower than the tip of the other rising part and shortened, and the compression sleeve When a plurality of electric wires to be connected are inserted, and the compression sleeve is sandwiched from the left and right directions with the opening portion facing up with a compression tool having a substantially symmetrical shape of the action portion, when the sleeve is compressed as it is, two of the rising portion of the compression sleeve moves so as to be close to each other, further, the tip of the short rise portion when compressed blocks the person I the opening on the inner surface of the other of the rising portion, the The inner surface of the stomach rising portion has a compression sleeve that is configured to wrap around the wire in close contact with the wire.
請求項１及び２の各発明によれば、従来の圧縮スリーブと比べ、一つの圧縮スリーブでより広い範囲の電線に適用出来、電線の圧縮接続が可能と成る。その結果、現場に持ち込む接続材料を少なくすることが出来、また、作業時間の短縮にもつながり、作業自体をより確実かつ円滑に終了させることが出来る。さらに、従来の圧縮ペンチ及び圧縮ダイスを使用することが出来るので、汎用性も高く、使い勝手も良く、経済的でもある。 According to each of the first and second aspects of the present invention, compared to the conventional compression sleeve, it can be applied to a wider range of electric wires with a single compression sleeve, and the electric wire can be compressed and connected. As a result, it is possible to reduce the amount of connection material brought to the site and to shorten the work time, and the work itself can be completed more reliably and smoothly. Furthermore, since conventional compression pliers and compression dies can be used, it is highly versatile, easy to use, and economical.
（実施の形態例１）
以下、この発明の実施の形態例のＣ形の圧縮スリーブを図に基づいて説明する。この実施の形態例のＣ形の圧縮スリーブＡは、図２及び図３に示す様に、長手方向に対する直角方向の断面形状が左右対称でＣ形に設けられた電線接続用の圧縮スリーブであって、この圧縮スリーブの側面の開口部を上にした場合の相対向する二つの立ち上がり部１、２のうち、一方の立ち上がり部１を低くして短く設けたものである。
(Embodiment 1)
Hereinafter, a C-shaped compression sleeve according to an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 2 and 3, the C-shaped compression sleeve A of this embodiment is a compression sleeve for connecting electric wires in which the cross-sectional shape in the direction perpendicular to the longitudinal direction is symmetrical and provided in the C-shape. Of the two rising parts 1 and 2 facing each other when the opening on the side surface of the compression sleeve is turned up, one rising part 1 is made lower and shorter.
一方の立ち上がり部１を低くして短く設ける設け方としては、この圧縮スリーブＡを形成する際に、予め一方の立ち上がり部１を低くして短く形成する方法でも良いし、左右対称の相対向した部分のうち、一方の立ち上がり部１の先端を一定長切り取って低くして短く設けるようにしても良い。 As a method of providing one of the rising portions 1 to be short and short, when the compression sleeve A is formed, a method in which one of the rising portions 1 is previously made low and short may be used. Of the portions, the leading end of one rising portion 1 may be cut short for a predetermined length and provided short.
また、この圧縮スリーブの側面の開口部の幅は、少なくとも、この圧縮スリーブで接続する予定の電線の最大外径のものを入れられる幅とする。ここでは後述する８ｓｑ（断面積８ｍｍ２）の撚り線から成る電線Ｅが入れられる幅とする。さらに、この圧縮スリーブＡにおいて、他の構成は、従来の圧縮スリーブと同様である。 Further, the width of the opening on the side surface of the compression sleeve is at least a width that can accommodate a wire having the maximum outer diameter of the electric wire to be connected by the compression sleeve. Here, it is set to a width in which an electric wire E composed of a stranded wire of 8 sq (cross-sectional area of 8 mm 2 ) described later is put. Furthermore, in this compression sleeve A, other configurations are the same as those of the conventional compression sleeve.
次に、この圧縮スリーブＡを用いた電線の接続方法を説明する。図４に示す様に、この圧縮スリーブＡの側面の開口部３を上にした状態で、φ２．０（直径２．０ｍｍ、以下、同じ）の単線から成る二本の電線Ｂ、Ｂを当該圧縮スリーブＡの中に入れ、縦並びの状態にする。 Next, an electric wire connecting method using the compression sleeve A will be described. As shown in FIG. 4, with the opening 3 on the side surface of the compression sleeve A facing upward, two electric wires B and B made of a single wire of φ2.0 (diameter 2.0 mm, hereinafter the same) are connected to the compression sleeve A. Put it in the compression sleeve A and put it in a vertically aligned state.
この状態で、図５に示す様に、圧縮スリーブＡの開口部３を上にした状態で下方から圧縮ペンチＣ及び圧縮ダイスＤで挟持圧縮するが、この時、使用する圧縮ペンチＣ及び圧縮ダイスＤの作用部は左右対称とし、横方向から圧縮、圧迫した際、圧縮スリーブの両立ち上がり部１、２に左右から同様の力がかかる様にする。 In this state, as shown in FIG. 5, with the opening 3 of the compression sleeve A facing upward, the compression pliers C and the compression dies D are sandwiched and compressed from below. At this time, the compression pliers C and the compression dies to be used are compressed. The acting portion of D is left-right symmetric so that, when compressed and compressed from the lateral direction, the same force is applied to both rising portions 1 and 2 of the compression sleeve from the left and right.
その結果、図６に示す様に（この図６においては、圧縮ペンチ及び圧縮ダイスの記載を省略する。）、この圧縮スリーブＡの二つの立ち上がり部１、２は同様に横方向から圧縮、圧迫されて上方へ延び、互いに近づく動きを為し、さらに、図７に示す様に、圧縮ペンチＣ及び圧縮ダイスＤで圧縮すると、図８に示す様に、上記短い立ち上がり部１の先端が他方の立ち上がり部２の内側面に当たって上記開口部３を塞ぎ、さらに、圧縮を続けると、図１に示す様に、この短い立ち上がり部１の内側面が上記二本の電線Ｂ、Ｂに密着してこれらの電線Ｂ、Ｂを包み込んで接続する。この時、立ち上がり部２の先端は、当該圧縮ダイスＤ（図１において一点鎖線で示す。）から多少はみ出ることとなるが電線Ｂ、Ｂ同士の接続性能は良好と成る。 As a result, as shown in FIG. 6 (in FIG. 6, description of compression pliers and compression dies is omitted), the two rising portions 1 and 2 of the compression sleeve A are similarly compressed and compressed from the lateral direction. Then, it moves upward and moves toward each other. Further, as shown in FIG. 7, when compressed with compression pliers C and compression dies D, as shown in FIG. When the opening 3 is blocked by hitting the inner surface of the rising portion 2 and further compressed, the inner surface of the short rising portion 1 comes into close contact with the two electric wires B and B as shown in FIG. Wrapping and connecting wires B and B. At this time, the tip of the rising portion 2 slightly protrudes from the compression die D (shown by a one-dot chain line in FIG. 1), but the connection performance between the electric wires B and B is good.
さらに、続いて他の電線を接続する。この圧縮スリーブＡの側面の開口部３を上にした状態で、８ｓｑ（断面積８ｍｍ２、以下、同じ）の撚り線から成る二本の電線Ｅ、Ｅを、図９に示す様に、横並びに入れる。この状態で、上記電線Ｂの場合と同様にして圧縮ペンチＣ及び圧縮ダイスＤで挟持圧縮する。 Subsequently, another electric wire is connected. With the opening 3 on the side surface of the compression sleeve A facing upward, two electric wires E and E made of stranded wires of 8 sq (cross-sectional area of 8 mm 2 , hereinafter the same) are arranged side by side as shown in FIG. Put in. In this state, in the same manner as in the case of the electric wire B, compression is performed with compression pliers C and a compression die D.
その結果、図１０及び図１１に示す様に（これらの図１０及び図１１においては、圧縮ペンチＣ及び圧縮ダイスＤの記載を省略する。）、この圧縮スリーブＡの二つの立ち上がり部１、２は同様に、横方向から圧縮、圧迫されて上方へ延び互いに近づく動きを為し、それに伴って横並びに配置されていた電線Ｅ、Ｅが変形し、さらに、圧縮ペンチＣ及び圧縮ダイスＤで圧縮すると、図１２に示す様に、上記短い立ち上がり部１の先端が他方の立ち上がり部２の内側面に当たって上記開口部３を塞ぎ、この短い立ち上がり部１の内側面が上記二本の電線Ｅ、Ｅに密着してこれらの電線Ｅ、Ｅを包み込んでおよそ縦並びにした状態で接続する。 As a result, as shown in FIGS. 10 and 11 (in FIGS. 10 and 11, the description of the compression pliers C and the compression dies D is omitted), the two rising portions 1 and 2 of the compression sleeve A are provided. In the same manner, the wires E, E which are arranged side by side are deformed by being compressed and compressed from the lateral direction and are moved upwards and approach each other, and further compressed by the compression pliers C and the compression die D. Then, as shown in FIG. 12, the tip of the short rising portion 1 hits the inner surface of the other rising portion 2 to close the opening 3, and the inner surface of the short rising portion 1 is the two electric wires E, E The wires E and E are wrapped in close contact with each other and connected in a vertically arranged state.
次に、この実施の形態例の圧縮スリーブＡと、従来の圧縮スリーブを用いて、電線接続可能な範囲を比較する実験を行った。接続する電線としては、φ２．０ｍｍ（単線）、φ２．６ｍｍ（単線、従来の圧縮スリーブのみ）、φ３．２（単線）、５．５ｍｍ２（撚り線）、８ｍｍ２（撚り線）各電線を使用した。 Next, using the compression sleeve A of this embodiment example and a conventional compression sleeve, an experiment was performed to compare the range in which electric wires can be connected. As an electric wire to be connected, φ2.0 mm (single wire), φ2.6 mm (single wire, conventional compression sleeve only), φ3.2 (single wire), 5.5 mm 2 (stranded wire), 8 mm 2 (stranded wire) It was used.
この実施の形態例の圧縮スリーブＡ´は、図１３に示す様に、長手方向に対する直角方向の断面の外径が１２．６ｍｍ、同立ち上がり部の高さが１０．２ｍｍ、同短い立ち上がり部の高さが８ｍｍ、長手方向の長さが１８ｍｍのものを使用した。その結果を以下の表１に示す。 As shown in FIG. 13, the compression sleeve A ′ of this embodiment has an outer diameter of a cross section perpendicular to the longitudinal direction of 12.6 mm, a height of the rising portion of 10.2 mm, and a short rising portion of the same. The one having a height of 8 mm and a length in the longitudinal direction of 18 mm was used. The results are shown in Table 1 below.
上記表１では、圧縮接続した２本の電線（軟銅線同士、軟銅線と硬銅線、硬銅線同士の３種類）の電気抵抗値と引張強度を試験した結果を示す。また、「○」は異種類線の組合わせ接続を示し、「●」は２本同一線の組合わせ接続を示す。 In the said Table 1, the result of having tested the electrical resistance value and tensile strength of two electric wires (3 types of soft copper wires, an annealed copper wire and a hard copper wire, and hard copper wires) connected by compression is shown. “◯” indicates a combination connection of different types of lines, and “●” indicates a combination connection of two identical lines.
また、上記表１の「同長電気抵抗」とは、測定間隔が１０００ｍｍの電線の電気抵抗値を示す。また、同表１の「抵抗」とは、上記２本の電線を接続した場合のスリーブの電気抵抗値を示す。「抵抗率」とは、上記「抵抗」/上記「同長電気抵抗」であって、接続前の電線の電気抵抗値に対する接続後のスリーブの電気抵抗値をパーセンテージで示すものである。 In addition, “same length electrical resistance” in Table 1 indicates the electrical resistance value of an electric wire with a measurement interval of 1000 mm. In addition, “resistance” in Table 1 indicates an electrical resistance value of the sleeve when the two electric wires are connected. The “resistivity” is the above “resistance” / “the same electrical resistance” and indicates the electrical resistance value of the sleeve after connection to the electrical resistance value of the electric wire before connection as a percentage.
この表１の各表によれば、φ２．０の軟銅線同士を圧縮接続した場合の電気抵抗値は、５４４３μΩ・at２０℃、抵抗率９９．６％で判定は良であった。これは、電気事業法で定められた「電気設備の基準、第７条、電線の接続」において電線の接続をする場合、接続部分において電線の電気抵抗を増加させないように接続する事と規定されていることに基づくものである（以下、同じ）。この場合、低効率は９９．６％であったので判定は良となる。 According to each table of Table 1, the electrical resistance value in the case of compressively connecting φ2.0 annealed copper wires was 5443 μΩ · at 20 ° C., and the resistivity was 99.6%, and the determination was good. This is stipulated in the “Electrical Equipment Standards, Article 7, Connection of Wires” defined by the Electricity Business Law, in order to connect the wires so as not to increase the electrical resistance of the wires at the connection part. (Hereinafter the same). In this case, since the low efficiency is 99.6%, the determination is good.
また、上記電線の場合の引張強度試験は、しきい値が２５０(N)で、スベリ開始７３０(N)、最終値で７７０(N)であり、軟銅線素線切れがあったが判定は良であった。この「良」の判定については、φ２．０の軟銅線同士の圧縮接続の場合、しきい値を素線破断荷重の３０％とすると（以下、他の引張強度試験においても同様にしきい値を素線破断荷重の３０％とする。）、２５０(N)となるが、スベリ開始が７３０(N)であり、最終値が７７０(N)であったので上記しきい値２５０(N)を充分上回っていることによる。 Further, the tensile strength test in the case of the above electric wire has a threshold value of 250 (N), a sliding start of 730 (N), and a final value of 770 (N). It was good. Regarding the determination of “good”, in the case of compression connection between φ2.0 annealed copper wires, if the threshold value is 30% of the strand breaking load (hereinafter, the threshold value is similarly applied to other tensile strength tests). 30% of the strand break load)), 250 (N), but the start of sliding is 730 (N) and the final value is 770 (N). Because it is well above.
また、φ２．０の硬銅線同士を圧縮接続した場合の電気抵抗値は、５５８９μΩ・at２０℃、抵抗率９９．４％で判定は良であった。また、その場合の引張強度試験は、しきい値が６９１(N)で、最終値で１２９０(N)であり、上記しきい値を上回っており、硬銅線素線切れがあったが判定は良であった。 Moreover, the electrical resistance value in the case of compressing and connecting φ2.0 hard copper wires was 5589 μΩ · at 20 ° C., and the resistivity was 99.4%, and the determination was good. In this case, the tensile strength test is 691 (N), the final value is 1290 (N), which exceeds the above threshold, and it was judged that there was a break in the hard copper wire. Was good.
また、軟銅線のφ２．０と硬銅線のφ２．０を圧縮接続した場合の電気抵抗値は、５４６４μΩ・at２０℃、抵抗率９８．５％で判定は良であった。また、その場合の引張強度試験は、しきい値が２５０(N)で、最終値で７８０(N) であり、上記しきい値を上回っており、軟銅線素線切れがあったが判定は良であった。また、軟銅線のφ２．０と軟銅線の８ｍｍ２を圧縮接続した場合の電気抵抗値は、３８４３μΩ・at２０℃、抵抗率９９．６％で判定は良であった。また、その場合の引張強度試験は、しきい値が２５０(N)で、最終値で７９０(N) であり、上記しきい値を上回っており、軟銅線素線切れがあったが判定は良であった。 Further, the electrical resistance value when the soft copper wire φ2.0 and the hard copper wire φ2.0 were compression-connected was 5464 μΩ · at 20 ° C., and the resistivity was 98.5%, and the determination was good. Further, in the tensile strength test in that case, the threshold value is 250 (N) and the final value is 780 (N), which exceeds the above threshold value. It was good. Moreover, the electrical resistance value in the case of compressively connecting φ2.0 of the annealed copper wire and 8 mm 2 of the annealed copper wire was 3843 μΩ · at 20 ° C., and the resistivity was 99.6%, and the determination was good. Further, in the tensile strength test in that case, the threshold value is 250 (N) and the final value is 790 (N), which exceeds the above threshold value. It was good.
また、軟銅線のφ３．２と硬銅線φ３．２を圧縮接続した場合の電気抵抗値は、２１６３μΩ・at２０℃、抵抗率９９．１％で判定は良であった。また、その場合の引張強度試験は、しきい値が６１５(N)で、最終値で１９９０(N) であり、上記しきい値を上回っており、軟銅線素線切れがあったが判定は良であった。また、５．５ｓｑの軟銅線同士を圧縮接続した場合の電気抵抗値は、３２６０μΩ・at２０℃、抵抗率９９．１％で判定は良であった。また、その場合の引張強度試験は、しきい値が４１２(N)で、最終値で１２８０(N) であり、上記しきい値を上回っており、素線切れがあったが判定は良であった。さらに、８ｍｍ２の軟銅線同士を圧縮接続した場合の電気抵抗値は、２２３３μΩ・at２０℃、抵抗率９９．２％で判定は良であった。また、その場合の引張強度試験は、しきい値が５８８(N)で、最終値で１７２０(N) であり、上記しきい値を上回っており、素線切れがあったが判定は良であった。 Moreover, the electrical resistance value in the case of compression-connecting the soft copper wire φ3.2 and the hard copper wire φ3.2 was 2163 μΩ · at 20 ° C., and the resistivity was 99.1%, and the determination was good. Further, in the tensile strength test in that case, the threshold value was 615 (N) and the final value was 1990 (N), which exceeded the above threshold value. It was good. In addition, when the 5.5 sq annealed copper wires were compression-connected, the electrical resistance value was 3260 μΩ · at 20 ° C. and the resistivity was 99.1%, and the determination was good. In this case, the tensile strength test has a threshold value of 412 (N) and a final value of 1280 (N), which exceeds the threshold value. there were. Furthermore, when the 8 mm 2 annealed copper wires were compression-connected, the electrical resistance value was 2233 μΩ · at 20 ° C. and the resistivity was 99.2%, and the determination was good. In this case, the tensile strength test has a threshold value of 588 (N) and a final value of 1720 (N), which exceeds the above threshold value. there were.
一方、従来のＣ形の圧縮スリーブＨとしては、図１４に示す様に、長手方向に対する直角方向の断面の外径が７．５ｍｍ、同高さが１２．８ｍｍ、長手方向の長さが２５ｍｍのものを使用した。その結果を以下の表２に示す。
上記表２では、上記表１と同様に、接続した２本の電線の電気抵抗値と引張強度を試験した結果を示す。表示の仕方は上記表１と同様である。この表２の各表によれば、φ２．０の軟銅線同士の圧縮接続は出来なかった。また、φ２．０の硬銅線同士を圧縮接続した場合の電気抵抗値は、５５７６μΩ・at２０℃、抵抗率９９．１％で判定は良であった。また、その場合の引張強度試験は、しきい値が６９１(N)で、スベリ開始３４０(N)、最終値で６８０(N)、素線抜けがあり、判定は否であった。これは、φ２．０の硬銅線同士の圧縮接続の場合、しきい値を素線破断荷重の３０％とすると、６９１(N)となるが、この場合、３４０(N)で素線が抜け始めたのでこの時点でしきい値まで維持出来ず「否」となった。 Table 2 shows the results of testing the electrical resistance value and tensile strength of the two connected electric wires, as in Table 1 above. The display method is the same as in Table 1 above. According to each table in Table 2, compression connection between φ2.0 annealed copper wires was not possible. Moreover, the electrical resistance value when φ2.0 hard copper wires were compression-connected was 5576 μΩ · at 20 ° C. and the resistivity was 99.1%, and the determination was good. In this case, the tensile strength test had a threshold value of 691 (N), a slip start of 340 (N), a final value of 680 (N), and a missing wire. This is 691 (N) in the case of compression connection between φ2.0 hard copper wires, and the threshold is 30% of the wire breaking load. In this case, the wire is 340 (N). Since it started to escape, it was not possible to maintain the threshold value at this point, and the result was “No”.
また、φ２．０の軟銅線とφ２．０の硬銅線を圧縮接続した場合の電気抵抗値は、５６４５μΩ・at２０℃、抵抗率１０１．８％であったので判定は否となった。また、その場合の引張強度試験は、スベリ開始４４０(N)、最終値で６７０(N)、素線切れがあったが判定は良であった。しかし、上述の通り抵抗率が高いので全体の判定は否となった。 Further, the electrical resistance value in the case of compressing and connecting a φ2.0 annealed copper wire and a φ2.0 hard copper wire was 5645 μΩ · at 20 ° C. and the resistivity was 101.8%, so the determination was negative. Further, in the tensile strength test in that case, the start of sliding was 440 (N), the final value was 670 (N), and the wire was broken, but the judgment was good. However, since the resistivity is high as described above, the overall determination is negative.
また、φ２．６の軟銅線とφ２．６の硬銅線を圧縮接続した場合の電気抵抗値は、３３０９μΩ・at２０℃、抵抗率１００．０％であり、低効率は増加していないので判定は良となった。また、その場合の引張強度試験は、しきい値が４１２(N)で、スベリ開始１２６０（N）、最終値で２１８０(N)、圧縮部口元切れがあったが判定は良であった。また、φ３．２の軟銅線とφ３．２の硬銅線を圧縮接続した場合の電気抵抗値は、２１６７μΩ・at２０℃、抵抗率９９．２％で判定は良であった。また、その場合の引張強度試験は、しきい値が６１５(N)で、最終値で２０００(N)、軟銅線素線切れがあったが判定は良であった。 In addition, the electrical resistance when a φ2.6 annealed copper wire and a φ2.6 hard copper wire are compression-connected is 3309 μΩ · at 20 ° C., and the resistivity is 100.0%. Became good. Further, in the tensile strength test in that case, the threshold value was 412 (N), the sliding start 1260 (N), the final value was 2180 (N), and the end of the compressed portion was cut off, but the judgment was good. Moreover, the electrical resistance value in the case of compression-connecting a φ3.2 annealed copper wire and a φ3.2 hard copper wire was 2167 μΩ · at 20 ° C., and the resistivity was 99.2%, and the determination was good. Further, in the tensile strength test in that case, the threshold value was 615 (N), the final value was 2000 (N), and the annealed copper wire was broken, but the judgment was good.
また、５．５ｍｍ２の軟銅線同士を圧縮接続した場合の電気抵抗値は、３２３９μΩ・at２０℃、抵抗率９８．４％で判定は良であった。また、その場合の引張強度試験は、しきい値が４１２(N)で、最終値で１２４０(N)、素線切れがあったが判定は良であった。さらに、８ｍｍ２の軟銅線同士を圧縮接続した場合の電気抵抗値は、２２４１μΩ・at２０℃、抵抗率９９．６％で判定は良であった。また、その場合の引張強度試験は、しきい値が５８８(N)で、最終値で１８８０(N)、軟銅線素線切れがあったが判定は良であった。 In addition, when the 5.5 mm 2 annealed copper wires were compression-connected, the electrical resistance value was 3239 μΩ · at 20 ° C. and the resistivity was 98.4%, and the determination was good. Further, in the tensile strength test in that case, the threshold value was 412 (N), the final value was 1240 (N), and the wire was broken, but the judgment was good. Furthermore, when the 8 mm 2 annealed copper wires were compression-connected, the electrical resistance value was 2241 μΩ · at 20 ° C. and the resistivity was 99.6%, and the determination was good. Further, in the tensile strength test in that case, the threshold value was 588 (N), the final value was 1880 (N), and the annealed copper wire was broken, but the judgment was good.
この様に、この実施の形態例のＣ型の圧縮スリーブＡ´は、側面の開口部３の幅を、この場合の最も大きい幅である８ｍｍ２の上記電線Ｅを入れられる幅とし、この圧縮スリーブＡ´を、従来の作用部が左右対称の圧縮ペンチＣと圧縮ダイスＤで圧縮すれば、上記φ２．０の電線Ｂから上記８ｍｍ２の電線Ｅまでの電線に、短い立ち上がり部１が当該圧縮スリーブＡ´内で密着して当該電線Ｂ、Ｂ乃至Ｅ、Ｅを包み込んで接続出来るものである。 As described above, the C-type compression sleeve A ′ of this embodiment is configured such that the width of the opening 3 on the side surface is the width that can accommodate the 8 mm 2 electric wire E, which is the largest width in this case. If the sleeve A ′ is compressed with a compression pliers C and a compression die D in which the conventional working part is symmetrical, the short rising part 1 is connected to the electric wire from the φ2.0 electric wire B to the 8 mm 2 electric wire E. The wires B, B to E, E can be wrapped and connected in close contact within the compression sleeve A ′.
この圧縮スリーブＡ´では、φ２．６の実験を省略しているが、φ２．０について、軟銅線同士、硬銅線同士、軟銅線と硬銅線の３種類の実験を行って、これらの全てにおいて良好な結果を得ていることから、これらのφ２．０より大きいφ２．６についても問題無く圧縮接続出来ると考えられたからである。 In this compression sleeve A ′, the experiment of φ2.6 is omitted, but for φ2.0, three types of experiments of annealed copper wires, between hard copper wires, an annealed copper wire and a hard copper wire were conducted. This is because good results were obtained in all cases, and it was considered that compression connection could be made without any problem for φ2.6 larger than φ2.0.
これに対して、従来の圧縮スリーブＨは、φ２．０の軟銅線同士では圧縮できなかった。φ２．０の硬銅線同士を圧縮接続する場合は圧縮接続出来たが引張強度が弱く判定としては否であった。また、φ２．０の軟銅線と硬銅線の場合、抵抗率が高く判定は否であった。 On the other hand, the conventional compression sleeve H could not be compressed between φ2.0 annealed copper wires. In the case of compressing and connecting φ2.0 hard copper wires, compression connection could be made, but the tensile strength was weak and the determination was not possible. In the case of φ2.0 annealed copper wire and hard copper wire, the resistivity was high and the determination was negative.
この表３は、上記表１及び２に記載された内容を夫々まとめたものであり、また、縦横の項目の数字及び記号は接続した電線の外径又は断面積を示す。 Table 3 summarizes the contents described in Tables 1 and 2 above, and the numbers and symbols in the vertical and horizontal items indicate the outer diameter or cross-sectional area of the connected wires.
この表３によると、この実施の形態例の圧縮スリーブＡ´を使用すれば、従来の圧縮スリーブＨと比べ、一つの圧縮スリーブでより広い範囲の電線サイズに適用出来、有効な電線の圧縮接続が可能と成る。上記比較においては、φ２．０ｍｍ、φ２．６ｍｍ、φ３．２、５．５ｓｑ（ｍｍ２）、８ｓｑ（ｍｍ２）の各電線の有効な圧縮接続が可能であることが確認できた。 According to Table 3, if the compression sleeve A ′ of this embodiment is used, compared with the conventional compression sleeve H, one compression sleeve can be applied to a wider range of wire sizes, and effective wire compression connection. Is possible. In the above comparison, it was confirmed that effective compression connection of each of φ2.0 mm, φ2.6 mm, φ3.2, 5.5 sq (mm 2) , and 8 sq (mm 2 ) electric wires was possible.
一方、従来の圧縮スリーブＨを使用した場合、φ２．０ｍｍの電線同士では、有効な圧縮接続が出来ず、圧縮接続が出来る範囲は、φ２．６ｍｍ、φ３．２、５．５ｓｑ（ｍｍ２）、８ｓｑ（ｍｍ２）の各電線までであった。 On the other hand, when the conventional compression sleeve H is used, effective compression connection cannot be made between wires of φ2.0 mm, and the range in which compression connection can be made is φ2.6 mm, φ3.2, 5.5 sq (mm 2 ). 8 sq (mm 2 ) of each electric wire.
これらのことから、この実施の形態例の圧縮スリーブＡによると、現場に持ち込む接続材料を少なくすることが出来、また、作業時間の短縮にもつながり、作業自体をより確実かつ円滑に終了させることが出来る。さらに、従来の圧縮ペンチ及び圧縮ダイスを使用することが出来るので、汎用性も高く、使い勝手も良く、経済的でもある。 For these reasons, according to the compression sleeve A of this embodiment, it is possible to reduce the connecting material brought to the site, and also to shorten the work time, and the work itself can be completed more reliably and smoothly. I can do it. Furthermore, since conventional compression pliers and compression dies can be used, it is highly versatile, easy to use, and economical.
また、この圧縮スリーブＡ内に電線を挿入した状態で、この圧縮スリーブＡをペンチ等の工具で潰し、電線を仮把持した後に圧縮する方法も有り、この場合でも同等の性能が得られる。 Further, there is a method in which the compression sleeve A is crushed with a tool such as pliers while the electric wire is inserted into the compression sleeve A, and the electric wire is temporarily gripped and then compressed. In this case, the same performance can be obtained.
Ａ 圧縮スリーブ Ａ´ 圧縮スリーブ
Ｂ 電線 Ｃ 圧縮ペンチ
Ｄ 圧縮ダイス Ｅ 電線
Ｆ 圧縮スリーブ Ｇ 電線
Ｈ 圧縮スリーブ
１ 短い立ち上がり部 ２ 立ち上がり部
３ 開口部 １１ 開口部
A compression sleeve A 'compression sleeve B electric wire C compression pliers D compression die E electric wire F compression sleeve G electric wire H compression sleeve 1 short rising portion 2 rising portion 3 opening portion 11 opening portion
Claims (2)
上記開口部を上にした場合の、開口部に相対向した下辺の両側から立設した相対向する二つの立ち上がり部のうち、一方の立ち上がり部の先端を他方の立ち上がり部の先端より低くして短くし、
当該圧縮スリーブの中に接続する複数の電線を入れ、作用部の形状が略左右対称の圧縮工具で当該圧縮スリーブを上記開口部を上にした状態で左右方向から挟持し、そのまま当該スリーブを圧縮した際、当該圧縮スリーブの二つの立ち上がり部は相互に近接するように動き、さらに、圧縮すると上記短い立ち上がり部の先端が他方の立ち上がり部の内側面に当って上記開口部を塞ぎ、当該短い立ち上がり部の内側面が上記電線に密着して当該電線を包み込むことを特徴とする、圧縮スリーブを用いた電線接続方法。 When the cross-sectional shape in the direction perpendicular to the longitudinal direction is substantially C-shaped and the opening is directed upward, the compression sleeve for connecting the electric wire has a substantially symmetrical shape ,
In the case of above the opening, one from each side of the opposing the lower side to the opening of the two upstanding portions of opposed erected, and the leading end of one of the rising portion lower than the front end of the other of the rising portion Keep it short
Insert a plurality of electric wires to be connected into the compression sleeve, hold the compression sleeve from the left and right directions with the opening facing up with a compression tool whose shape of the working part is substantially symmetrical, and compress the sleeve as it is When the two rising portion of the compression sleeve moves so as to be close to each other, further, the tip of the short rise portion when compressed blocks the person I the opening on the inner surface of the other of the rising portion, the short An electric wire connection method using a compression sleeve, wherein an inner surface of a rising portion is in close contact with the electric wire and encloses the electric wire.
上記開口部を上にした場合の、開口部に相対向した下辺の両側から立設した相対向する二つの立ち上がり部のうち、一方の立ち上がり部の先端を他方の立ち上がり部の先端より低くして短くし、
当該圧縮スリーブの中に接続する複数の電線を入れ、作用部の形状が略左右対称の圧縮工具で当該圧縮スリーブを上記開口部を上にした状態で左右方向から挟持し、そのまま当該スリーブを圧縮した際、当該圧縮スリーブの二つの立ち上がり部は相互に近接するように動き、さらに、圧縮すると上記短い立ち上がり部の先端が他方の立ち上がり部の内側面に当って上記開口部を塞ぎ、当該短い立ち上がり部の内側面が上記電線に密着して当該電線を包み込む構成としたことを特徴とした、圧縮スリーブ。 In the compression sleeve for wire connection , the cross-sectional shape in the direction perpendicular to the longitudinal direction is substantially C-shaped and the opening is upwardly symmetric, when the opening is facing upward ,
In the case of above the opening, one from each side of the opposing the lower side to the opening of the two upstanding portions of opposed erected, and the leading end of one of the rising portion lower than the front end of the other of the rising portion Keep it short
Insert a plurality of electric wires to be connected into the compression sleeve, hold the compression sleeve from the left and right directions with the opening facing up with a compression tool whose shape of the working part is substantially symmetrical, and compress the sleeve as it is When the two rising portion of the compression sleeve moves so as to be close to each other, further, the tip of the short rise portion when compressed blocks the person I the opening on the inner surface of the other of the rising portion, the short A compression sleeve characterized in that the inner surface of the rising portion is in close contact with the electric wire and wraps around the electric wire.
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| JPH04155780A (en) * | 1990-10-19 | 1992-05-28 | Shintaro Oba | Compression sleeve for wire connection |
| CA2060691C (en) * | 1991-02-15 | 1996-10-01 | Gary E. Schrader | Full closure h-shaped connector |
| JPH10255865A (en) * | 1997-03-11 | 1998-09-25 | Nippon Boshoku Kogyo Kk | Electric wire connecting sleeve |
| JP4082375B2 (en) * | 2004-03-30 | 2008-04-30 | 松下電器産業株式会社 | Power cable for welding or cutting equipment |
| DE102006021422B8 (en) * | 2006-05-05 | 2008-06-26 | Schunk Ultraschalltechnik Gmbh | Method of making a passage or end node, and passage or end nodes |
| JP4666650B2 (en) * | 2006-09-27 | 2011-04-06 | 株式会社オートネットワーク技術研究所 | Manufacturing method of electric wire with terminal and electric wire with terminal |
| JP2009252700A (en) * | 2008-04-10 | 2009-10-29 | Autonetworks Technologies Ltd | Method for manufacturing electric wire terminal connection part and electric wire terminal connection structure |
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