JP3713620B2

JP3713620B2 - Extra-fine coaxial cable, extra-fine coaxial flat cable, electric wire processed product, and manufacturing method thereof

Info

Publication number: JP3713620B2
Application number: JP2000205680A
Authority: JP
Inventors: 昇平駒村; 浩樹角田; 正山口; 穂高坂口
Original assignee: Totoku Electric Co Ltd
Current assignee: Totoku Electric Co Ltd
Priority date: 2000-07-06
Filing date: 2000-07-06
Publication date: 2005-11-09
Anticipated expiration: 2020-07-06
Also published as: JP2002025357A; TW475182B

Description

【０００１】
【発明の属する技術分野】
本発明は、極細同軸ケーブル、極細同軸フラットケーブル、電線加工品およびその製造方法に関し、さらに詳しくは、加工時に絶縁体や外部導体が損傷することを防止した極細同軸ケーブル、その極細同軸ケーブルを用いた極細同軸ケーブル、その極細同軸フラットケーブルを用いた電線加工品およびその製造方法に関する。
【０００２】
【従来の技術】
図１０は、特開平１０−１４４１４５号公報に開示されている従来の極細同軸フラットケーブルを示す斜視図である。
この極細同軸フラットケーブル５００は、素線径０.０３ｍｍの錫メッキ銅合金線を７本撚りした中心導体１の外周をフッ素系樹脂にて厚さ０.０６ｍｍで被覆して絶縁体２とし、その外周に素線径０.０３ｍｍの錫メッキ銅合金線を横巻きして外部導体３とし、その外周に内側面が銅蒸着層５４ａで外側面がポリエステルフィルム５４ｂの銅蒸着ポリエステルテープ５４を巻き付け、その外周に着色ポリエステルテープを巻き付けて外被５とし、外径０.３３ｍｍとした極細同軸ケーブル５０を、１２本並列に０.５ｍｍピッチで面状に並べて、粘着テープ２０で挟んで一体化した構造である。
【０００３】
図１１〜図１６は、特開平１０−１４４１４５号公報に開示されている上記極細同軸フラットケーブル５００の加工方法を示す説明図である。
図１１に示すように、端部から１５ｍｍの位置にレーザー光を照射して粘着テープ２０と外被５と銅蒸着ポリエステルテープ５４とに切れ目Ｓ１を入れる。
図１２に示すように、切れ目Ｓ１から端部側の粘着テープ２０と外被５と銅蒸着ポリエステルテープ５４とを一体的に端部側にずらせて、外部導体３を露出させ、その外部導体３をグランドバー対６で上下から挟み、半田付けする。同様に、その近傍で、外部導体３をグランドバー対Ｂ２で上下から挟み、半田付けする。
前記グランドバー対６，Ｂ２は、幅１ｍｍ，厚さ０.５ｍｍの錫メッキリン青銅板である。
【０００４】
図１３に示すように、グランドバー対６，Ｂ２の間で屈曲して外部導体３を切断し、その切断部から端部側のグランドバー対Ｂ２と外部導体３と粘着テープ２０と外被５と銅蒸着ポリエステルテープ５４とを一体的に抜き去り、絶縁体２を露出させる。
図１４に示すように、絶縁体２に絶縁フィルムＦを熱融着する。
【０００５】
図１５に示すように、グランドバー対６と絶縁フィルムＦの間の位置にレーザー光を照射して絶縁体２に切れ目Ｓ２を入れる。
図１６に示すように、切れ目Ｓ２から端部側の絶縁フィルムＦと絶縁体２とを一体的に端部側にずらせて、中心導体１を露出させる。
図１７に示すように、絶縁フィルムＦより端部側を切断除去し、電線加工品５０２を得る。
【０００６】
【発明が解決しようとする課題】
上記グランドバー対６，Ｂ２の半田付け工程において、熱と圧力とが絶縁体２に加わる。このため、グランドバー対６，Ｂ２の間で屈曲して外部導体３を切断し、その切断部から端部側のグランドバー対Ｂ２と外部導体３と粘着テープ２０と外被５と銅蒸着ポリエステルテープ５４とを一体的に抜き去って絶縁体２を露出させようとしたときに、図１８に示すように、溶融変形部（絶縁体２が熱と圧力で変形した部分）Ｐ１や溶融切断部（絶縁体２が熱と圧力で変形した上に抜き去る力が加わったために切れてしまった部分）Ｐ２を生じる問題点があった。
また、切れ目Ｓ１を入れる時に、レーザー光強度のばらつきにより、外部導体３を損傷する場合があった。
そこで、本発明の目的は、加工時に加わる熱と圧力とにより絶縁体が損傷することを防止すると共にレーザー光により外部導体３が損傷することを防止した極細同軸フラットケーブルおよび極細同軸ケーブルを提供することにある。
【０００７】
【課題を解決するための手段】
第１の観点では、本発明は、中心導体１と、その中心導体１の外周を被覆する絶縁体２と、その絶縁体２の外周に導体線を横巻きした外部導体３と、その外部導体３の外周に巻き付けた内側面が厚さ５μｍ以上の金属フイルム４ａで外側面が樹脂フィルム４ｂの積層テープ４とを具備したことを特徴とする極細同軸ケーブル１０を提供する。
上記第１の観点による極細同軸ケーブル１０では、従来のように外部導体３の外周に銅蒸着ポリエステルテープ５４を巻くのではなく、内側面が厚さ５μｍ以上の金属フイルム４ａで外側面が樹脂フィルム４ｂの積層テープ４を巻き付けるようにした。銅蒸着ポリエステルテープ５４の場合、銅蒸着層５４ａの厚さはせいぜい０.３μｍ位であり、これを厚くすることは蒸着では困難である。このように銅蒸着層５４ａが薄いため、銅蒸着層５４ａが熱を逃がす働きは十分ではない。このため、電線加工品を製造する際にグランドバー対６を外部導体３に半田付けする時、絶縁体２に局所的に半田付けの熱が伝わり、損傷を生じるものと考えられる。これに対して、積層テープ４の場合、厚さ５μｍ以上の金属フイルム４ａを積層することは極めて容易である。このように金属フィルム４ａが厚いため、金属フィルム４ａが熱を逃がす働きが十分となる。よって、電線加工品を製造する際にグランドバー対６を外部導体３に半田付けする時、絶縁体２に局所的に熱が伝わるのを回避でき、絶縁体２に損傷を生じないようになる。また、レーザー光を照射して切れ目Ｓ１を入れる時、レーザー光強度のばらつきがあっても、厚い金属フィルム４ａが防護するため、外部導体３を損傷しなくなる。
【０００８】
なお、金属フイルム４ａとしては、銅フィルムでもよいが、熱伝導性や軟らかさの点でアルミニウムフィルムがより好ましい。
また、金属フイルム４ａがあまり厚くなると巻き付けにくくなるので、９μｍ以下にするのが好ましい。
【０００９】
第２の観点では、本発明は、中心導体１と、その中心導体１の外周を被覆する絶縁体２と、その絶縁体２の外周に導体線を横巻きした外部導体３と、その外部導体３の外周に巻き付けた内側面が厚さ５μｍ以上の金属フイルム４ａで外側面が樹脂フィルム４ｂの積層テープ４と、その積層テープ４の外周に樹脂テープを巻き付けた外被５とを具備した極細同軸ケーブル１０を、複数本並列に面状に並べて一体化したことを特徴とする極細同軸フラットケーブル１００を提供する。上記第２の観点による極細同軸フラットケーブル１００では、上記第１の観点による極細同軸ケーブル１０を用いているため、電線加工品を製造する際にグランドバー対６を外部導体３に半田付けする時、絶縁体２に局所的に熱が伝わるのを回避でき、絶縁体２に損傷を生じないようになる。
【００１０】
第３の観点では、本発明は、中心導体１と、その中心導体１の外周を被覆する絶縁体２と、その絶縁体２の外周に導体線を横巻きした外部導体３と、その外部導体３の外周に巻き付けた内側面が厚さ５μｍ以上の金属フイルム４ａで外側面が樹脂フィルム４ｂの積層テープ４と、その積層テープ４の外周に樹脂テープを巻き付けた外被５とを具備した極細同軸ケーブル１０を、複数本並列に面状に並べ、それら極細同軸ケーブル１０の端部の外被５と積層テープ４とを除去し、外部導体３を露出させ、それら外部導体３に跨らせてグランドバー対６を半田付けし、そのグランドバー対６より端部側の外部導体３を除去し、絶縁体２を露出させ、それら絶縁体２が所定ピッチで面状に並ぶように絶縁テープ７でまとめたことを特徴とする電線加工品１０１を提供する。
上記第３の観点による電線加工品１０１では、上記第１の観点による極細同軸ケーブル１０を用いているため、絶縁体２や外部導体３に損傷を生じず、高品質となる。
【００１１】
第４の観点では、本発明は、中心導体１と、その中心導体１の外周を被覆する絶縁体２と、その絶縁体２の外周に導体線を横巻きした外部導体３と、その外部導体３の外周に巻き付けた内側面が厚さ５μｍ以上の金属フイルム４ａで外側面が樹脂フィルム４ｂの積層テープ４と、その積層テープ４の外周に樹脂テープを巻き付けた外被５とを具備した極細同軸ケーブル１０を、複数本並列に面状に並べ、それら極細同軸ケーブル１０の端部の外被５と積層テープ４とを除去し、外部導体３を露出させ、それら外部導体３に跨らせてグランドバー対６を半田付けし、そのグランドバー対６より端部側の外部導体３を除去し、絶縁体２を露出させ、それら絶縁体２が所定ピッチで面状に並ぶように絶縁テープ７でまとめ、前記グランドバー対６と絶縁テープ７の間に切れ目Ｓ２を入れて、その切れ目Ｓ２から端部側の絶縁テープ７と絶縁体２とを端部側にずらせて中心導体１を露出させたことを特徴とする電線加工品１０２を提供する。
上記第４の観点による電線加工品１０２では、上記第１の観点による極細同軸ケーブル１０を用いているため、絶縁体２や外部導体３に損傷を生じず、高品質となる。
【００１２】
第５の観点では、本発明は、中心導体１と、その中心導体１の外周を被覆する絶縁体２と、その絶縁体２の外周に導体線を横巻きした外部導体３と、その外部導体３の外周に巻き付けた内側面が厚さ５μｍ以上の金属フイルム４ａで外側面が樹脂フィルム４ｂの積層テープ４と、その積層テープ４の外周に樹脂テープを巻き付けた外被５とを具備した極細同軸ケーブル１０を、複数本並列に面状に並べ、それら極細同軸ケーブル１０の端部近傍に切れ目Ｓ１を入れて、その切れ目Ｓ１から端部側の外被５と積層テープ４とを端部側にずらせて外部導体３を露出させ、それら外部導体３に跨らせてグランドバー対６を半田付けし、そのグランドバー対６より端部側に前記複数の外部導体３に跨らせて銅板８を半田付けし、前記グランドバー対６より端部側の外部導体３を前記銅板８と共に除去し、絶縁体２を露出させることを特徴とする電線加工品の製造方法を提供する。
上記第５の観点による電線加工品の製造方法では、上記第１の観点による極細同軸ケーブル１０を用いると共に、従来のように面積の小さいグランドバー対Ｂ２を用いるのではなく、面積の広い銅板８を用いるため、熱を十分に逃がすことができる。よって、グランドバー対６や銅板８を外部導体３に半田付けする時、絶縁体２に局所的に熱が伝わるのを回避でき、絶縁体２に損傷を生じず、高品質の電線加工品を製造できるようになる。また、銅板８を掴むことが出来るため、グランドバー対６と銅板８の間を屈曲させて外部導体３を切断する作業が楽になる。さらに、銅板８を掴んで引き抜くことで、粘着テープ２０と外被５と積層テープ４とを除去する作業が楽になり、絶縁体２に無理な力がかかることをも防止できる。
【００１３】
【発明の実施の形態】
以下、図を参照して本発明の実施の形態を説明する。なお、これにより本発明が限定されるものではない。
【００１４】
図１は、本発明の一実施形態に係る極細同軸ケーブル１０を示す斜視図である。
この極細同軸ケーブル１０は、素線径０.０３ｍｍの錫メッキ銅合金線を７本撚りした中心導体１の外周をフッ素系樹脂にて厚さ０.０６ｍｍで被覆して絶縁体２とし、その外周に素線径０.０３ｍｍの錫メッキ銅合金線を横巻きして外部導体３とし、その外周に片面が厚さ７μｍのアルミニウムフィルム４ａで他の片面がポリエステルフィルム４ｂの積層テープ４を、アルミニウムフィルム４ａ面を内側にして、巻き付け、その外周に着色ポリエステルテープを巻き付けて外被５とし、外径０.３３ｍｍとした構造である。
【００１５】
図２は、本発明の一実施形態に係る極細同軸フラットケーブル１００を示す斜視図である。
この極細同軸フラットケーブル１００は、図１の極細同軸ケーブル１０を、２０本並列に０.５ｍｍピッチで面状に並べて、上下から粘着テープ２０で挟んで一体化した構造である。
【００１６】
図３〜図９は、上記極細同軸フラットケーブル１００の加工方法を示す説明図である。なお、図示の都合上、極細同軸ケーブル１０は１２本で表している。
まず、極細同軸フラットケーブル１００を長さ１３０ｍｍに切断する。
次に、図３に示すように、端部から１５ｍｍの位置にレーザー光を照射して粘着テープ２０と外被５と積層テープ４とに切れ目Ｓ１を入れる。
次に、図４に示すように、切れ目Ｓ１から端部側の粘着テープ２０と外被５と積層テープ４とを一体的に端部側にずらせて、外部導体３を露出させ、その外部導体３をグランドバー対６で上下から挟み、半田付けする。次に、グランドバー対６より端部側の外部導体３の下面に、グランドバー対６の下側のグランドバーに接するように、銅板８を半田付けする。
前記グランドバー対６は、幅１ｍｍ，厚さ０.０３ｍｍの錫メッキ平角銅線である。
【００１７】
図５の（ａ）に、銅板８の平面図を示す。また、図５の（ｂ）に、銅板８の側面図を示す。
銅板８には、ピッチ０.５ｍｍで２０本の溝ｇが刻設されている。これらの溝ｇに、各外部導体３を嵌入することで、外部導体３のピッチは正確に０.５ｍｍに保たれる。
【００１８】
次に、図６に示すように、グランドバー対６と銅板８の境目で屈曲して外部導体３を切断し、その切断部から端部側の外部導体３と粘着テープ２０と外被５と積層テープ４とを銅板８と一体的に抜き去り、絶縁体２を露出させる。
次に、図７に示すように、絶縁体２に絶縁テープ７を貼り付け、各絶縁体２のピッチを保持する。
以上により、ピッチ精度が向上し、一括接続が容易な電線加工品１０１が得られた。
【００１９】
さらに、図８に示すように、グランドバー対６と絶縁テープ７の間の位置にレーザー光を照射して絶縁体２に切れ目Ｓ２を入れる。
次に、図９に示すように、切れ目Ｓ２から端部側の絶縁テープ７と絶縁体２とを一体的に端部側にずらせて、中心導体１を露出させる。
以上により、ピッチ精度が向上し、一括接続が容易な電線加工品１０２が得られた。
【００２０】
−他の実施形態−
（１）電線加工品１０１，１０２の絶縁テープ７より端部側を切断除去してもよい。
（２）電線加工品１０２の露出した中心導体１を半田浴に浸して半田コートを施してもよい。これにより、一括接続の作業性をいっそう改善することが出来る。
（３）粘着テープ２０を剥がしてもよい。これにより、端部は一定ピッチに保持されているので一括接続に支障はないが、他の部分は自由に動き得れるので使い勝手のよい電線加工品とすることが出来る。
【００２１】
【発明の効果】
本発明の極細同軸ケーブル１０および極細同軸フラットケーブル１００によれば、内側面が厚さ５μｍ以上の金属フイルム４ａで外側面が樹脂フィルム４ｂの積層テープ４を用いているため、金属フィルム４ａが熱を逃がす働きが十分となり、電線加工品を製造する際にグランドバー対６を外部導体３に半田付けする時、絶縁体２に局所的に熱が伝わるのを回避でき、絶縁体２に損傷を生じないようになる。また、レーザー光を照射して切れ目Ｓ１を入れる時、レーザー光強度のばらつきがあっても、厚い金属フィルム４ａが防護するため、外部導体３を損傷しなくなる。
【００２２】
本発明の電線加工品１０１，１０２によれば、上記極細同軸ケーブル１０を用いているため、絶縁体２や外部導体３に損傷を生じることがなくなり、品質を向上できる。
【００２３】
本発明の電線加工品の製造方法によれば、上記極細同軸ケーブル１０を用いると共に銅板８を用いるため、グランドバー対６や銅板８を外部導体３に半田付けする時、銅板８にも熱が十分に逃げるようになり、絶縁体２に局所的に熱が伝わるのを回避でき、絶縁体２に損傷を生じず、品質を向上できる。また、銅板８を掴むことが出来るため、グランドバー対６と銅板８の間を屈曲させて外部導体３を切断する作業が楽になる。さらに、銅板８を掴んで引き抜くことで、粘着テープ２０と外被５と積層テープ４とを除去する作業が楽になり、絶縁体２に無理な力がかかることをも防止できる。
【図面の簡単な説明】
【図１】本発明に係る極細同軸ケーブルの断面図である。
【図２】本発明に係る極細同軸フラットケーブルの斜視図である。
【図３】本発明に係る電線加工品の製造工程中の粘着テープ等に切れ目を入れる工程の説明図である。
【図４】本発明に係る電線加工品の製造工程中のグランドバー対を半田付けする工程の説明図である。
【図５】本発明に係る電線加工品の製造に用いる銅板の平面図および側面図である。
【図６】本発明に係る電線加工品の製造工程中の絶縁体を露出させる工程の説明図である。
【図７】本発明に係る電線加工品の製造工程中の絶縁テープを貼着する工程の説明図である。
【図８】本発明に係る電線加工品の製造工程中の絶縁体に切れ目を入れる工程の説明図である。
【図９】本発明に係る電線加工品の製造工程中の中心導体を露出させる工程の説明図である。
【図１０】従来の極細同軸フラットケーブルの一例の斜視図である。
【図１１】従来の電線加工品の製造工程中の粘着テープ等に切れ目を入れる工程の説明図である。
【図１２】従来の電線加工品の製造工程中のグランドバー対を半田付けする工程の説明図である。
【図１３】従来の電線加工品の製造工程中の絶縁体を露出させる工程の説明図である。
【図１４】従来の電線加工品の製造工程中の絶縁フィルムを溶着する工程の説明図である。
【図１５】従来の電線加工品の製造工程中の絶縁体に切れ目を入れる工程の説明図である。
【図１６】従来の電線加工品の製造工程中の中心導体を露出させる工程の説明図である。
【図１７】従来の電線加工品の一例の平面図である。
【図１８】従来の電線加工品の製造工程中に起こる問題点の説明図である。
【符号の説明】
１中心導体
２絶縁体
３外部導体
４積層テープ
４ａアルミニウムフィルム（金属フィルム）
４ｂポリエステルフィルム（樹脂フィルム）
５外被
６，Ｂ２グランドバー対
７絶縁テープ
８銅板
１０極細同軸ケーブル
２０粘着テープ
５０極細同軸ケーブル
５４銅蒸着ポリエステルテープ
５４ａ銅蒸着層
５４ｂポリエステルフィルム
１００極細同軸フラットケーブル
１０１，１０２電線加工品
５００極細同軸フラットケーブル
５０２電線加工品
Ｆ絶縁フィルム
Ｓ１、Ｓ２切れ目
ｇ溝[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an ultrafine coaxial cable, an ultrafine coaxial flat cable, an electric wire processed product, and a manufacturing method thereof, and more particularly, to an ultrafine coaxial cable that prevents damage to an insulator or an external conductor during processing, and the ultrafine coaxial cable. The present invention relates to an ultrafine coaxial cable, an electric wire processed product using the ultrafine coaxial flat cable, and a manufacturing method thereof.
[0002]
[Prior art]
FIG. 10 is a perspective view showing a conventional micro coaxial flat cable disclosed in Japanese Patent Laid-Open No. 10-144145.
In this ultrafine coaxial flat cable 500, the outer periphery of the central conductor 1 in which seven strands of a tin-plated copper alloy wire having a wire diameter of 0.03 mm are twisted is coated with a fluorine-based resin to a thickness of 0.06 mm to form an insulator 2. A tin-plated copper alloy wire having a wire diameter of 0.03 mm is wound around the outer periphery to form the outer conductor 3, and a copper-deposited polyester tape 54 having a copper-deposited layer 54 a on the inner surface and a polyester film 54 b on the outer surface is wound around the outer periphery. A colored polyester tape is wound around the outer periphery to form a jacket 5 and 12 micro coaxial cables 50 having an outer diameter of 0.33 mm are arranged in a plane at a pitch of 0.5 mm in parallel, and are sandwiched between adhesive tapes 20 and integrated. This is the structure.
[0003]
FIGS. 11-16 is explanatory drawing which shows the processing method of the said micro coaxial flat cable 500 currently disclosed by Unexamined-Japanese-Patent No. 10-144145.
As shown in FIG. 11, a laser beam is irradiated to a position 15 mm from the end portion, and a cut S1 is made in the adhesive tape 20, the jacket 5, and the copper vapor-deposited polyester tape 54.
As shown in FIG. 12, the adhesive tape 20, the jacket 5, and the copper-deposited polyester tape 54 on the end side from the cut S 1 are integrally shifted to the end side to expose the external conductor 3, and the external conductor 3 is exposed. Is sandwiched from above and below by the ground bar pair 6 and soldered. Similarly, in the vicinity thereof, the outer conductor 3 is sandwiched from above and below by the ground bar pair B2 and soldered.
The ground bar pair 6, B2 is a tin-plated phosphor bronze plate having a width of 1 mm and a thickness of 0.5 mm.
[0004]
As shown in FIG. 13, the outer conductor 3 is cut by bending between the ground bar pair 6 and B2, and the ground bar pair B2, the outer conductor 3, the adhesive tape 20, and the jacket 5 on the end side from the cut portion. And the copper vapor-deposited polyester tape 54 are integrally removed to expose the insulator 2.
As shown in FIG. 14, the insulating film F is heat-sealed to the insulator 2.
[0005]
As shown in FIG. 15, a laser beam is irradiated to a position between the ground bar pair 6 and the insulating film F to make a cut S 2 in the insulator 2.
As shown in FIG. 16, the insulating film F and the insulator 2 on the end side from the cut S 2 are integrally shifted to the end side to expose the center conductor 1.
As shown in FIG. 17, the end side of the insulating film F is cut and removed to obtain an electric wire processed product 502.
[0006]
[Problems to be solved by the invention]
Heat and pressure are applied to the insulator 2 in the soldering process of the ground bar pair 6 and B2. For this reason, the outer conductor 3 is cut by bending between the ground bar pair 6 and B2, and the ground bar pair B2, the outer conductor 3, the adhesive tape 20, the jacket 5 and the copper vapor-deposited polyester on the end side from the cut portion. When the insulator 2 is exposed by removing the tape 54 integrally, as shown in FIG. 18, the melted deformed portion (the portion where the insulator 2 is deformed by heat and pressure) P1 or the melt cut portion There was a problem that P2 was generated (the portion that was cut off because the insulator 2 was deformed by heat and pressure and the force to be removed was applied).
Further, when the cut S1 is made, the outer conductor 3 may be damaged due to variations in the intensity of the laser beam.
Accordingly, an object of the present invention is to provide a micro coaxial flat cable and a micro coaxial cable that prevent the insulator from being damaged by heat and pressure applied during processing and prevent the outer conductor 3 from being damaged by laser light. There is.
[0007]
[Means for Solving the Problems]
In a first aspect, the present invention relates to a center conductor 1, an insulator 2 covering the outer periphery of the center conductor 1, an outer conductor 3 having a conductor wire wound around the outer periphery of the insulator 2, and the outer conductor. An ultrafine coaxial cable 10 is provided in which a laminated film 4 having a metal film 4a having an inner surface wound around the outer periphery of 3 and a resin film 4b having a thickness of 5 μm or more is provided.
In the micro coaxial cable 10 according to the first aspect, the copper vapor-deposited polyester tape 54 is not wound around the outer periphery of the outer conductor 3 as in the prior art, but the inner surface is a metal film 4a having a thickness of 5 μm or more and the outer surface is a resin film. The laminated tape 4 of 4b was wound. In the case of the copper vapor-deposited polyester tape 54, the thickness of the copper vapor-deposited layer 54a is at most about 0.3 μm, and it is difficult to increase the thickness by vapor deposition. Thus, since the copper vapor deposition layer 54a is thin, the function of the copper vapor deposition layer 54a to release heat is not sufficient. For this reason, when the ground bar pair 6 is soldered to the external conductor 3 when manufacturing the electric wire processed product, it is considered that the heat of soldering is locally transmitted to the insulator 2 to cause damage. On the other hand, in the case of the laminated tape 4, it is very easy to laminate the metal film 4a having a thickness of 5 μm or more. Thus, since the metal film 4a is thick, the metal film 4a has a sufficient function of releasing heat. Therefore, when the ground bar pair 6 is soldered to the external conductor 3 when manufacturing the electric wire processed product, heat can be prevented from being locally transmitted to the insulator 2, and the insulator 2 is not damaged. . Further, when the laser beam is irradiated and the cut line S1 is formed, the outer conductor 3 is not damaged because the thick metal film 4a protects even if there is a variation in the laser beam intensity.
[0008]
The metal film 4a may be a copper film, but an aluminum film is more preferable in terms of thermal conductivity and softness.
Moreover, since it will become difficult to wind when the metal film 4a becomes too thick, it is preferable to make it 9 micrometers or less.
[0009]
In a second aspect, the present invention relates to a center conductor 1, an insulator 2 covering the outer periphery of the center conductor 1, an outer conductor 3 having a conductor wire wound around the outer periphery of the insulator 2, and the outer conductor. 3 includes a laminated tape 4 having a metal film 4a having an inner side surface of 5 μm or more and a resin film 4b on the outer side, and an outer cover 5 having a resin tape wrapped around the outer circumference of the laminated tape 4. An ultrafine coaxial flat cable 100 is provided in which a plurality of coaxial cables 10 are arranged in a plane in parallel and integrated. In the micro coaxial flat cable 100 according to the second aspect, since the micro coaxial cable 10 according to the first aspect is used, when the ground bar pair 6 is soldered to the external conductor 3 when manufacturing a wire processed product. The heat can be prevented from being locally transmitted to the insulator 2, and the insulator 2 is not damaged.
[0010]
In a third aspect, the present invention relates to a center conductor 1, an insulator 2 covering the outer periphery of the center conductor 1, an outer conductor 3 having a conductor wire wound around the outer periphery of the insulator 2, and the outer conductor. 3 includes a laminated tape 4 having a metal film 4a having an inner side surface of 5 μm or more and a resin film 4b on the outer side, and an outer cover 5 having a resin tape wrapped around the outer circumference of the laminated tape 4. A plurality of coaxial cables 10 are arranged in parallel in a planar shape, the outer cover 5 and the laminated tape 4 at the end of these micro coaxial cables 10 are removed, the external conductor 3 is exposed, and the external conductor 3 is straddled. The ground bar pair 6 is soldered, the outer conductor 3 on the end side of the ground bar pair 6 is removed, the insulator 2 is exposed, and the insulating tape is arranged so that the insulators 2 are arranged in a plane at a predetermined pitch. wire press, characterized in that 7 hoax and meta To provide the goods 101.
In the electric wire processed product 101 according to the third aspect, since the micro coaxial cable 10 according to the first aspect is used, the insulator 2 and the external conductor 3 are not damaged, and the quality is high.
[0011]
In a fourth aspect, the present invention relates to a center conductor 1, an insulator 2 covering the outer periphery of the center conductor 1, an outer conductor 3 having a conductor wire wound around the outer periphery of the insulator 2, and the outer conductor. 3 includes a laminated tape 4 having a metal film 4a having an inner side surface of 5 μm or more and a resin film 4b on the outer side, and an outer cover 5 having a resin tape wrapped around the outer circumference of the laminated tape 4. A plurality of coaxial cables 10 are arranged in parallel in a planar shape, the outer cover 5 and the laminated tape 4 at the end of these micro coaxial cables 10 are removed, the external conductor 3 is exposed, and the external conductor 3 is straddled. The ground bar pair 6 is soldered, the outer conductor 3 on the end side of the ground bar pair 6 is removed, the insulator 2 is exposed, and the insulating tape is arranged so that the insulators 2 are arranged in a plane at a predetermined pitch. 7 and the ground bar pair 6 and A wire processed product characterized in that a cut S2 is provided between the edge tapes 7, and the insulating tape 7 and the insulator 2 on the end side are shifted to the end side from the cut S2 to expose the central conductor 1. 102 is provided.
In the electric wire processed product 102 according to the fourth aspect, since the micro coaxial cable 10 according to the first aspect is used, the insulator 2 and the external conductor 3 are not damaged, and the quality is high.
[0012]
In a fifth aspect, the present invention relates to a center conductor 1, an insulator 2 covering the outer periphery of the center conductor 1, an outer conductor 3 having a conductor wire wound around the outer periphery of the insulator 2, and the outer conductor. 3 includes a laminated tape 4 having a metal film 4a having an inner side surface of 5 μm or more and a resin film 4b on the outer side, and an outer cover 5 having a resin tape wrapped around the outer circumference of the laminated tape 4. A plurality of coaxial cables 10 are arranged in parallel in a planar shape, and a slit S1 is made near the ends of the micro coaxial cables 10, and the outer cover 5 and the laminated tape 4 on the end side are connected to the ends from the slit S1. The external conductors 3 are exposed to the outside, the ground bar pair 6 is soldered across the external conductors 3, and the copper plate is straddled across the plurality of external conductors 3 on the end side from the ground bar pair 6. 8 is soldered and the ground bar pair 6 The outer conductor 3 of Litan side is removed together with the copper plate 8, to provide a method of manufacturing a wire workpiece, characterized in that exposing the insulator 2.
In the method for manufacturing a wire processed product according to the fifth aspect, the micro coaxial cable 10 according to the first aspect is used, and the ground bar pair B2 having a small area is not used as in the conventional case, but the copper plate 8 having a large area is used. Therefore, heat can be sufficiently released. Therefore, when the ground bar pair 6 or the copper plate 8 is soldered to the outer conductor 3, it is possible to avoid the local transfer of heat to the insulator 2, and the insulator 2 is not damaged. Can be manufactured. Further, since the copper plate 8 can be grasped, the work of cutting the outer conductor 3 by bending the ground bar pair 6 and the copper plate 8 is facilitated. Furthermore, by grasping and pulling out the copper plate 8, the operation of removing the adhesive tape 20, the jacket 5, and the laminated tape 4 becomes easy, and it is possible to prevent an excessive force from being applied to the insulator 2.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. Note that the present invention is not limited thereby.
[0014]
FIG. 1 is a perspective view showing a micro coaxial cable 10 according to an embodiment of the present invention.
This ultrafine coaxial cable 10 is an insulator 2 in which the outer periphery of a central conductor 1 in which seven tin-plated copper alloy wires having a strand diameter of 0.03 mm are twisted is coated with a fluorine-based resin to a thickness of 0.06 mm. An outer conductor 3 is formed by laterally winding a tin-plated copper alloy wire having a wire diameter of 0.03 mm on the outer periphery, and a laminated tape 4 having an aluminum film 4a having a thickness of 7 μm on the outer periphery and a polyester film 4b on the other surface, The aluminum film 4a is wound inward, and a colored polyester tape is wound around the outer periphery of the aluminum film 4a to form a jacket 5, which has an outer diameter of 0.33 mm.
[0015]
FIG. 2 is a perspective view showing a micro coaxial flat cable 100 according to an embodiment of the present invention.
This ultra-fine coaxial flat cable 100 has a structure in which 20 ultra-fine coaxial cables 10 of FIG. 1 are arranged in a plane at a pitch of 0.5 mm in parallel and sandwiched by adhesive tape 20 from above and below.
[0016]
3-9 is explanatory drawing which shows the processing method of the said ultra-fine coaxial flat cable 100. FIG. For convenience of illustration, the micro coaxial cable 10 is represented by twelve.
First, the ultrafine coaxial flat cable 100 is cut into a length of 130 mm.
Next, as shown in FIG. 3, a laser beam is irradiated to a position 15 mm from the end portion, and a cut S 1 is made in the adhesive tape 20, the jacket 5, and the laminated tape 4.
Next, as shown in FIG. 4, the adhesive tape 20, the jacket 5, and the laminated tape 4 on the end side from the cut S1 are integrally shifted to the end side to expose the external conductor 3, and the external conductor 3 is sandwiched between the ground bar pair 6 from above and below and soldered. Next, the copper plate 8 is soldered to the lower surface of the outer conductor 3 on the end side from the ground bar pair 6 so as to contact the ground bar below the ground bar pair 6.
The ground bar pair 6 is a tin-plated rectangular copper wire having a width of 1 mm and a thickness of 0.03 mm.
[0017]
FIG. 5A is a plan view of the copper plate 8. Moreover, the side view of the copper plate 8 is shown in FIG.5 (b).
The copper plate 8 is provided with 20 grooves g with a pitch of 0.5 mm. By inserting the outer conductors 3 in these grooves g, the pitch of the outer conductors 3 is accurately maintained at 0.5 mm.
[0018]
Next, as shown in FIG. 6, the outer conductor 3 is cut by bending at the boundary between the ground bar pair 6 and the copper plate 8, and the outer conductor 3, the adhesive tape 20, and the jacket 5 on the end side from the cut portion. The laminated tape 4 is removed integrally with the copper plate 8 to expose the insulator 2.
Next, as shown in FIG. 7, the insulating tape 7 is affixed to the insulator 2, and the pitch of each insulator 2 is hold | maintained.
As a result, the processed wire product 101 with improved pitch accuracy and easy batch connection was obtained.
[0019]
Further, as shown in FIG. 8, a laser beam is irradiated to a position between the ground bar pair 6 and the insulating tape 7 to make a cut S 2 in the insulator 2.
Next, as shown in FIG. 9, the insulating tape 7 and the insulator 2 on the end side from the cut S 2 are integrally shifted to the end side to expose the center conductor 1.
As a result, the processed wire 102 with improved pitch accuracy and easy batch connection was obtained.
[0020]
-Other embodiments-
(1) You may cut and remove the edge part side from the insulating tape 7 of the electric wire processed goods 101 and 102. FIG.
(2) The exposed central conductor 1 of the processed wire product 102 may be dipped in a solder bath and solder coated. Thereby, the workability of the collective connection can be further improved.
(3) The adhesive tape 20 may be peeled off. As a result, since the end portions are held at a constant pitch, there is no hindrance to the collective connection, but the other portions can be moved freely, so that it is possible to obtain an easy-to-use electric wire processed product.
[0021]
【The invention's effect】
According to the micro coaxial cable 10 and the micro coaxial flat cable 100 of the present invention, the metal film 4a is heated because the metal tape 4a having the inner surface of 5 μm or more and the outer surface of the resin film 4b is used. When the ground bar pair 6 is soldered to the external conductor 3 when manufacturing a wire processed product, it is possible to avoid the local transfer of heat to the insulator 2 and damage the insulator 2. It will not occur. Further, when the laser beam is irradiated and the cut line S1 is formed, the outer conductor 3 is not damaged because the thick metal film 4a protects even if there is a variation in the laser beam intensity.
[0022]
According to the electric wire processed products 101 and 102 of the present invention, since the micro coaxial cable 10 is used, the insulator 2 and the external conductor 3 are not damaged, and the quality can be improved.
[0023]
According to the method for manufacturing a processed wire product of the present invention, since the micro coaxial cable 10 and the copper plate 8 are used, when the ground bar pair 6 or the copper plate 8 is soldered to the external conductor 3, the copper plate 8 is also heated. It becomes possible to escape sufficiently, and heat can be prevented from being locally transmitted to the insulator 2, and the quality can be improved without causing damage to the insulator 2. Further, since the copper plate 8 can be grasped, the work of cutting the outer conductor 3 by bending the ground bar pair 6 and the copper plate 8 is facilitated. Furthermore, by grasping and pulling out the copper plate 8, the operation of removing the adhesive tape 20, the jacket 5, and the laminated tape 4 becomes easy, and it is possible to prevent an excessive force from being applied to the insulator 2.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a micro coaxial cable according to the present invention.
FIG. 2 is a perspective view of a micro coaxial flat cable according to the present invention.
FIG. 3 is an explanatory diagram of a process of making a cut in an adhesive tape or the like during the manufacturing process of the processed wire product according to the present invention.
FIG. 4 is an explanatory diagram of a process of soldering a ground bar pair during the manufacturing process of the processed wire product according to the present invention.
FIGS. 5A and 5B are a plan view and a side view of a copper plate used for manufacturing a wire processed product according to the present invention. FIGS.
FIG. 6 is an explanatory diagram of a process of exposing an insulator during a manufacturing process of a wire processed product according to the present invention.
FIG. 7 is an explanatory diagram of a process of attaching an insulating tape during the manufacturing process of the processed wire product according to the present invention.
FIG. 8 is an explanatory diagram of a process of making a cut in the insulator during the manufacturing process of the electric wire processed product according to the present invention.
FIG. 9 is an explanatory diagram of a process of exposing a central conductor during a manufacturing process of a wire processed product according to the present invention.
FIG. 10 is a perspective view of an example of a conventional micro coaxial flat cable.
FIG. 11 is an explanatory diagram of a process of making a cut in an adhesive tape or the like during a manufacturing process of a conventional electric wire processed product.
FIG. 12 is an explanatory diagram of a process of soldering a pair of ground bars during a manufacturing process of a conventional electric wire processed product.
FIG. 13 is an explanatory diagram of a process of exposing an insulator during a manufacturing process of a conventional electric wire processed product.
FIG. 14 is an explanatory diagram of a process of welding an insulating film during a manufacturing process of a conventional electric wire processed product.
FIG. 15 is an explanatory diagram of a process of making a cut in an insulator during a manufacturing process of a conventional electric wire processed product.
FIG. 16 is an explanatory diagram of a process of exposing a center conductor during a manufacturing process of a conventional electric wire processed product.
FIG. 17 is a plan view of an example of a conventional electric wire processed product.
FIG. 18 is an explanatory diagram of problems that occur during the manufacturing process of a conventional electric wire processed product.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Center conductor 2 Insulator 3 Outer conductor 4 Laminated tape 4a Aluminum film (metal film)
4b Polyester film (resin film)
5 Outer sheath 6, B2 Ground bar pair 7 Insulation tape 8 Copper plate 10 Fine coaxial cable 20 Adhesive tape 50 Ultra fine coaxial cable 54 Copper vapor deposition polyester tape 54a Copper vapor deposition layer 54b Polyester film 100 Micro coaxial flat cable 101, 102 Electric wire processed product 500 Ultra fine Coaxial flat cable 502 Electric wire processed product F Insulation film S1, S2 Cut g Groove

Claims

A central conductor ( 1 ) , an insulator ( 2 ) covering the outer periphery of the central conductor ( 1 ), an outer conductor ( 3 ) having a conductor wire wound around the outer periphery of the insulator ( 2 ) , and the outer conductor (3) micro-coaxial cables (10 outer surface to a thickness 5μm or more metallic film inner surface wound around the outer periphery (4a) is characterized by comprising a laminated tape of the resin film (4b) (4) of )

A central conductor ( 1 ) , an insulator ( 2 ) covering the outer periphery of the central conductor ( 1 ), an outer conductor ( 3 ) having a conductor wire wound around the outer periphery of the insulator ( 2 ) , and the outer conductor ( 3 ) Laminated tape ( 4 ) with an inner surface wound around the outer circumference of a metal film ( 4a ) with a thickness of 5 μm or more and a resin film ( 4b ) on the outer side, and a resin tape on the outer circumference of the laminated tape ( 4 ) An ultra-fine coaxial flat cable ( 100 ) comprising a plurality of micro-coaxial cables ( 10 ) each having a wound outer jacket ( 5 ) arranged in a plane in parallel and integrated.

A central conductor ( 1 ) , an insulator ( 2 ) covering the outer periphery of the central conductor ( 1 ), an outer conductor ( 3 ) having a conductor wire wound around the outer periphery of the insulator ( 2 ) , and the outer conductor ( 3 ) Laminated tape ( 4 ) with an inner surface wound around the outer circumference of a metal film ( 4a ) with a thickness of 5 μm or more and a resin film ( 4b ) on the outer side, and a resin tape on the outer circumference of the laminated tape ( 4 ) A plurality of micro coaxial cables ( 10 ) having a wound outer jacket ( 5 ) are arranged in a plane in parallel, and the outer jacket ( 5 ) and laminated tape ( 4 ) at the ends of the micro coaxial cables ( 10 ) are arranged. And the external conductor ( 3 ) is exposed, the ground bar pair ( 6 ) is soldered across the external conductor ( 3 ) , and the outer conductor on the end side from the ground bar pair ( 6 ) (3) is removed to expose the insulator (2), its Et insulator (2) is wire workpiece, wherein the insulating tape (7) that hoax and meta to be aligned in the planar at a predetermined pitch (101).

A central conductor ( 1 ) , an insulator ( 2 ) covering the outer periphery of the central conductor ( 1 ), an outer conductor ( 3 ) having a conductor wire wound around the outer periphery of the insulator ( 2 ) , and the outer conductor ( 3 ) Laminated tape ( 4 ) with an inner surface wound around the outer circumference of a metal film ( 4a ) with a thickness of 5 μm or more and a resin film ( 4b ) on the outer side, and a resin tape on the outer circumference of the laminated tape ( 4 ) A plurality of micro coaxial cables ( 10 ) having a wound outer jacket ( 5 ) are arranged in a plane in parallel, and the outer jacket ( 5 ) and laminated tape ( 4 ) at the ends of the micro coaxial cables ( 10 ) are arranged. And the external conductor ( 3 ) is exposed, the ground bar pair ( 6 ) is soldered across the external conductor ( 3 ) , and the outer conductor on the end side from the ground bar pair ( 6 ) (3) is removed to expose the insulator (2), its Conclusion et insulator (2) is an insulating tape (7) so as to align in surface at a predetermined pitch, and scored (S2) between said ground bar pair (6) insulating tape (7), the cut An electric wire processed product ( 102 ) characterized in that the central conductor ( 1 ) is exposed by shifting the insulating tape ( 7 ) and the insulator ( 2 ) on the end side from ( S2 ) to the end side.

A central conductor ( 1 ) , an insulator ( 2 ) covering the outer periphery of the central conductor ( 1 ), an outer conductor ( 3 ) having a conductor wire wound around the outer periphery of the insulator ( 2 ) , and the outer conductor ( 3 ) Laminated tape ( 4 ) with an inner surface wound around the outer circumference of a metal film ( 4a ) with a thickness of 5 μm or more and a resin film ( 4b ) on the outer side, and a resin tape on the outer circumference of the laminated tape ( 4 ) A plurality of micro coaxial cables ( 10 ) having a wound outer jacket ( 5 ) are arranged in a plane in parallel, and a cut ( S1 ) is made near the end of the micro coaxial cable ( 10 ). (S1) by shifting on the end side and an end portion side of the envelope (5) a laminated tape (4) from expose the outer conductor (3), the ground bar pairs by straddle their outer conductor (3) ( 6 ) is soldered and the ground bar pair ( 6 ) Was straddle the plurality of outer conductors than on the end side (3) soldered to the copper plate (8), said the end portion side of the outer conductor (3) the ground bar pair (6) a copper plate (8 ) And exposing the insulator ( 2 ) to produce a processed wire product.