JP5835274B2 - Connecting member and flat cable with connecting member - Google Patents

Connecting member and flat cable with connecting member Download PDF

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JP5835274B2
JP5835274B2 JP2013127298A JP2013127298A JP5835274B2 JP 5835274 B2 JP5835274 B2 JP 5835274B2 JP 2013127298 A JP2013127298 A JP 2013127298A JP 2013127298 A JP2013127298 A JP 2013127298A JP 5835274 B2 JP5835274 B2 JP 5835274B2
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insulating film
flat
conductor
connecting member
ground bar
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JP2015002136A (en
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剛 平川
剛 平川
小山　恵司
恵司 小山
龍男 松田
龍男 松田
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Sumitomo Electric Industries Ltd
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Description

本発明は、フラットケーブルに接続される接続部材および接続部材付きフラットケーブルに関する。   The present invention relates to a connecting member connected to a flat cable and a flat cable with a connecting member.

特許文献１には、複数本の導体が平面状に配列された配列面の両面から一対の絶縁フィルムが貼り合わされ、一対の絶縁フィルムから突き出した接続電極としての導体に接続部材が貼り付けられたフラットケーブルが記載されている。   In Patent Document 1, a pair of insulating films are bonded from both sides of an array surface in which a plurality of conductors are arranged in a plane, and a connection member is bonded to a conductor as a connection electrode protruding from the pair of insulating films. A flat cable is described.

特開２０１３−０２０９４９号公報JP2013-020949A

フラットケーブルに含まれる導体として高周波対応が可能な同軸電線を用いることが考えられる。しかし、特許文献１に記載の接続部材の構成においては、この接続部材に同軸電線のグランドを落とす部分が形成できないため、同軸電線を含むフラットケーブルに接続される接続部材として用いることが困難である。   As a conductor included in the flat cable, it is conceivable to use a coaxial wire capable of high frequency. However, in the configuration of the connecting member described in Patent Document 1, it is difficult to use the connecting member as a connecting member connected to a flat cable including the coaxial cable because a portion for dropping the ground of the coaxial cable cannot be formed on the connecting member. .

本発明は、フラットケーブルに接続される接続部材であって、高周波対応が可能な接続部材および接続部材付きフラットケーブルを安価に提供することを目的とする。   An object of the present invention is to provide a connection member that is connected to a flat cable, and is capable of providing a high-frequency connection member and a flat cable with the connection member at low cost.

本発明の接続部材は、
第１絶縁フィルムと、
前記第１絶縁フィルムの上に貼り付けられている第２絶縁フィルムと、
並列された状態で少なくとも前記第２絶縁フィルムの上または前記第１絶縁フィルムの上に貼り付けられている複数本の平角導体と、
前記複数本の平角導体の長さ方向の一端から離れた状態で、前記複数本の平角導体の並列方向に延びているグランドバーと、
を備え、
前記グランドバーは、前記複数本の平角導体のうち少なくとも１つの平角導体と導電接続されている。 The connecting member of the present invention is
A first insulating film;
A second insulating film affixed on the first insulating film;
A plurality of rectangular conductors attached on at least the second insulating film or the first insulating film in a parallel state; and
A ground bar extending in a parallel direction of the plurality of flat conductors in a state separated from one end in the length direction of the plurality of flat conductors;
With
The ground bar is conductively connected to at least one of the plurality of flat conductors.

本発明の接続部材によれば、高周波対応が可能な同軸電線を含むフラットケーブルに接続される接続部材を安価に提供することができる。   According to the connecting member of the present invention, it is possible to provide a connecting member connected to a flat cable including a coaxial cable capable of supporting high frequency at low cost.

本発明に係る接続部材およびフラットケーブルの実施形態の一例を示す平面図である。It is a top view which shows an example of embodiment of the connection member which concerns on this invention, and a flat cable. 図１に示す接続部材がフラットケーブルに接続された状態を示す断面図である。It is sectional drawing which shows the state in which the connection member shown in FIG. 1 was connected to the flat cable. 本発明の変形例に係る接続部材の製造方法を示す図である。It is a figure which shows the manufacturing method of the connection member which concerns on the modification of this invention. 図３に示す接続部材の製造方法を示す図である。It is a figure which shows the manufacturing method of the connection member shown in FIG. 図３に示す接続部材の他の製造方法の例を示す図である。It is a figure which shows the example of the other manufacturing method of the connection member shown in FIG. 本発明に係る接続部材の他の変形例を示す図である。It is a figure which shows the other modification of the connection member which concerns on this invention. 本発明に係る接続部材のさらに他の変形例を示す図である。It is a figure which shows the further another modification of the connection member which concerns on this invention. 本発明に係る接続部材の別の変形例を示す図である。It is a figure which shows another modification of the connection member which concerns on this invention. 本発明に係る接続部材のさらに別の変形例を示す図である。It is a figure which shows another modification of the connection member which concerns on this invention.

[本願発明の実施形態の説明]
最初に本願発明の実施形態の内容を列記して説明する。
本願発明の実施形態に係る接続部材は、
（１）第１絶縁フィルムと、
前記第１絶縁フィルムの上に貼り付けられている第２絶縁フィルムと、
並列された状態で少なくとも前記第２絶縁フィルムの上または第１絶縁フィルムの上に貼り付けられている複数本の平角導体と、
前記複数本の平角導体の長さ方向の一端から離れた状態で、前記複数本の平角導体の並列方向に延びているグランドバーと、
を備え、
前記グランドバーは、前記複数本の平角導体のうち少なくとも１つの平角導体と導電接続されている。
この構成によれば、高価なフレキシブルプリント基板等により接続部材を形成する必要がなく、高周波対応が可能な同軸電線を含むフラットケーブルに接続される接続部材を簡便な構成で安価に提供することができる。 [Description of Embodiment of Present Invention]
First, the contents of the embodiments of the present invention will be listed and described.
The connection member according to the embodiment of the present invention is
(1) a first insulating film;
A second insulating film affixed on the first insulating film;
A plurality of rectangular conductors attached in parallel on at least the second insulating film or the first insulating film; and
A ground bar extending in a parallel direction of the plurality of flat conductors in a state separated from one end in the length direction of the plurality of flat conductors;
With
The ground bar is conductively connected to at least one of the plurality of flat conductors.
According to this configuration, it is not necessary to form a connection member with an expensive flexible printed circuit board or the like, and it is possible to provide a connection member connected to a flat cable including a coaxial cable capable of supporting high frequencies at a low cost with a simple configuration. it can.

（２）前記第１絶縁フィルムの前記長さ方向における一端部において、前記第１絶縁フィルム上に前記第２絶縁フィルムが貼られずに前記第１絶縁フィルムが露出され、
前記第１絶縁フィルムが露出した部分に前記グランドバーが配置されていることが好ましい。
この構成によれば、グランドバーと導電接続される平角導体以外の複数本の平角導体とグランドバーとの導電を確実に防ぐことができる。 (2) In the one end part in the length direction of the first insulating film, the first insulating film is exposed without the second insulating film being pasted on the first insulating film,
It is preferable that the ground bar is disposed in a portion where the first insulating film is exposed.
According to this configuration, it is possible to reliably prevent conduction between a plurality of flat conductors other than the flat conductor that is conductively connected to the ground bar and the ground bar.

（３）前記グランドバーに接続されない平角導体の長さは、前記グランドバーと導電接続される平角導体の長さよりも短いことが好ましい。
この構成によれば、接続部材の複数の平角導体のうち、グランドバーに接続される平角導体の位置を自由に設定可能となる。 (3) The length of the flat conductor not connected to the ground bar is preferably shorter than the length of the flat conductor conductively connected to the ground bar.
According to this configuration, the position of the flat conductor connected to the ground bar among the plurality of flat conductors of the connecting member can be freely set.

（４）前記複数本の平角導体の並列方向に沿った少なくとも一部において、前記第１絶縁フィルム上に前記第２絶縁フィルムが貼られずに前記第１絶縁フィルムが露出され、
前記第１絶縁フィルムが露出した部分に前記複数本の平角導体のうち少なくとも１つの平角導体が配置され、
前記第１絶縁フィルムが露出した部分に配置された平角導体は、前記グランドバーと導電接続されていることが好ましい。
この構成によれば、信号線部となる平角導体と、グランド線部となる両端の平角導体との判別を容易にし、グランド線部となる平角導体とグランドバーとの接続作業性を向上させることができる。 (4) In at least a portion along the parallel direction of the plurality of flat conductors, the first insulating film is exposed without the second insulating film being pasted on the first insulating film,
At least one rectangular conductor among the plurality of rectangular conductors is disposed on the exposed portion of the first insulating film,
The rectangular conductor disposed in the portion where the first insulating film is exposed is preferably conductively connected to the ground bar.
According to this configuration, it is easy to discriminate between the flat conductor serving as the signal line portion and the flat conductors at both ends serving as the ground line portion, and to improve the connection workability between the flat conductor serving as the ground line portion and the ground bar. Can do.

また、本願発明の実施形態に係る接続部材付きフラットケーブルは、
（５）前記（１）から（４）のいずれかに記載の接続部材にフラットケーブルが接続されている接続部材付きフラットケーブルであって、
前記フラットケーブルは、
中心導体の周囲に、絶縁体、外部導体及び外被が同軸状に順次積層され、前記フラットケーブルの一端側から前記中心導体、前記絶縁体および前記外部導体が順に露出されている複数本の同軸電線と、
平面状に配列された前記複数本の同軸電線の配列面の両面から貼り合わされる第３絶縁フィルムと、を有し、
前記同軸電線の数が前記接続部材の平角導体の数よりも少なく、
各中心導体が各前記平角導体に導電接続されるとともに、各外部導体が前記接続部材の前記グランドバーに導電接続されている。
この構成によれば、同軸電線のような高周波対応が可能な導体を含む接続部材付きフラットケーブルを安価に提供することができる。 Moreover, the flat cable with a connection member according to the embodiment of the present invention is
(5) A flat cable with a connecting member in which a flat cable is connected to the connecting member according to any one of (1) to (4),
The flat cable is
Around the center conductor, an insulator, an outer conductor, and a jacket are sequentially laminated in a coaxial manner, and a plurality of coaxials in which the center conductor, the insulator, and the outer conductor are sequentially exposed from one end side of the flat cable. Electric wires,
A third insulating film bonded from both sides of the arrangement surface of the plurality of coaxial electric wires arranged in a plane, and
The number of the coaxial wires is less than the number of rectangular conductors of the connection member,
Each central conductor is conductively connected to each of the rectangular conductors, and each external conductor is conductively connected to the ground bar of the connection member.
According to this configuration, a flat cable with a connecting member including a conductor capable of high frequency, such as a coaxial cable, can be provided at low cost.

[本願発明の実施形態の詳細]
以下、本発明に係る接続部材およびフラットケーブルの実施の形態の例を、図面を参照して説明する。
図１は本実施形態に係る接続部材およびフラットケーブルの端部の平面図であり、図２はフラットケーブルに接続部材が接続された状態を示す断面図である。 [Details of the embodiment of the present invention]
Hereinafter, examples of embodiments of a connecting member and a flat cable according to the present invention will be described with reference to the drawings.
FIG. 1 is a plan view of an end portion of a connection member and a flat cable according to the present embodiment, and FIG. 2 is a cross-sectional view showing a state in which the connection member is connected to the flat cable.

本実施形態に係るフラットケーブル１は、一対の外部機器を電気的に接続するため、もしくは機器内配線のために用いられるケーブルである。図１に示すように、フラットケーブル１は、複数本（ここでは、例えば８本）の同軸電線２と、一対の絶縁フィルム３（第３の絶縁フィルムの一例）とを備えている。   The flat cable 1 according to the present embodiment is a cable used for electrically connecting a pair of external devices or for in-device wiring. As shown in FIG. 1, the flat cable 1 includes a plurality of (e.g., eight) coaxial wires 2 and a pair of insulating films 3 (an example of a third insulating film).

同軸電線２は、例えば、中心導体５、絶縁体６、外部導体７および外被８がこの順で中心から径方向に積層された電線である。複数本の同軸電線２は所定のピッチで平面状に配列されている。   The coaxial wire 2 is, for example, an electric wire in which a center conductor 5, an insulator 6, an outer conductor 7, and an outer jacket 8 are laminated in this order from the center in the radial direction. The plurality of coaxial electric wires 2 are arranged in a plane at a predetermined pitch.

絶縁フィルム３は、ポリエチレンテレフタレート、ポリエステルあるいはポリイミド等の樹脂から形成されている。絶縁フィルム３には、その互いに対向する面に、それぞれ、ポリエステル系接着剤または難燃ポリ塩化ビニル系の絶縁性接着剤や難燃ポリオレフィンなどからなる接着層が設けられている。
一対の絶縁フィルム３は、接着層の面を対向させた状態で、平面状に配列された複数本の同軸電線２を配列面の両面から挟み込むことにより、互いに貼り合わされている。 The insulating film 3 is formed from a resin such as polyethylene terephthalate, polyester, or polyimide. The insulating film 3 is provided with adhesive layers made of a polyester-based adhesive, a flame-retardant polyvinyl chloride-based insulating adhesive, a flame-retardant polyolefin, or the like on the surfaces facing each other.
The pair of insulating films 3 are bonded to each other by sandwiching a plurality of coaxial electric wires 2 arranged in a planar shape from both sides of the arrangement surface with the surfaces of the adhesive layer facing each other.

フラットケーブル１の長手方向における端部において、絶縁フィルム３が所定長さ除去され、同軸電線２の一部が露出されている。このようにフラットケーブル１の端部から露出された部分を便宜的に接続部１１と呼ぶ。接続部１１において、各同軸電線２は、その先端側から中心導体５、絶縁体６、外部導体７および外被８が順に露出されている。この露出された中心導体５が接続電極１２とされている。   At the end in the longitudinal direction of the flat cable 1, the insulating film 3 is removed by a predetermined length, and a part of the coaxial cable 2 is exposed. The portion exposed from the end portion of the flat cable 1 is referred to as a connection portion 11 for convenience. In the connection portion 11, each coaxial cable 2 has a central conductor 5, an insulator 6, an external conductor 7, and a jacket 8 exposed in order from the tip side. The exposed center conductor 5 is a connection electrode 12.

本実施形態に係る接続部材２０は、補強フィルム２１（第１絶縁フィルムの一例）と、絶縁フィルム２２（第２絶縁フィルムの一例）と、複数の平角導体２３と、グランドバー２４とを備えている。   The connection member 20 according to the present embodiment includes a reinforcing film 21 (an example of a first insulating film), an insulating film 22 (an example of a second insulating film), a plurality of rectangular conductors 23, and a ground bar 24. Yes.

補強フィルム２１として、例えば、ポリエチレンテレフタレートからなるフィルムが用いられる。
絶縁フィルム２２は、補強フィルム２１の上面の少なくとも一部に設けられており、例えば補強フィルム２１よりも薄肉のポリエチレンテレフタレートからなるフィルムから構成されている。接続部材２０の厚さは、コネクタ等の接続相手によって、補強フィルム２１と絶縁フィルム２２の厚さを変えて調整する。例えば、補強フィルム２１の厚さは０．１〜０．５ｍｍであり、絶縁フィルム２２の厚さは０．０１〜０．５ｍｍである。本例においては、補強フィルム２１と絶縁フィルム２２とは、絶縁フィルム２２上に配列される平角導体２３の長さ方向における一端部がずれて配置されている。一方、平角導体２３の長さ方向における他端部と、平角導体２３の並列方向における両端部においては、補強フィルム２１と絶縁フィルム２２とは揃った状態で配置されている。これにより、補強フィルム２１上には、複数本の平角導体２３の並列方向に沿って、絶縁フィルム２２が貼られていない部分２１Ａが露出されている。 As the reinforcing film 21, for example, a film made of polyethylene terephthalate is used.
The insulating film 22 is provided on at least a part of the upper surface of the reinforcing film 21, and is made of, for example, a film made of polyethylene terephthalate that is thinner than the reinforcing film 21. The thickness of the connecting member 20 is adjusted by changing the thicknesses of the reinforcing film 21 and the insulating film 22 depending on a connection partner such as a connector. For example, the thickness of the reinforcing film 21 is 0.1 to 0.5 mm, and the thickness of the insulating film 22 is 0.01 to 0.5 mm. In this example, the reinforcing film 21 and the insulating film 22 are arranged such that one end portions in the length direction of the flat conductors 23 arranged on the insulating film 22 are shifted. On the other hand, the reinforcing film 21 and the insulating film 22 are arranged in a line at the other end in the length direction of the flat conductor 23 and both ends in the parallel direction of the flat conductor 23. Thereby, a portion 21 </ b> A where the insulating film 22 is not attached is exposed along the parallel direction of the plurality of flat conductors 23 on the reinforcing film 21.

複数本の平角導体２３は、絶縁フィルム２２の上面に、接続部１１の接続電極１２と略同一幅寸法で同一ピッチに配列されている。これらの平角導体２３は、銅または銅合金の圧延銅箔からなるもので、その表面には、金メッキが施されている。各平角導体２３の長さは、絶縁フィルム２２の短手方向の長さと略一致している。平角導体２３としては、錫、金、銀などでメッキされたものが使用される。グランド用途に使用される平角導体２３と信号用途に使用される平角導体２３とは、サイズやメッキ等を別にしてもよい。   The plurality of flat conductors 23 are arranged on the upper surface of the insulating film 22 with substantially the same width and the same pitch as the connection electrodes 12 of the connection portion 11. These flat conductors 23 are made of a rolled copper foil of copper or copper alloy, and the surface thereof is plated with gold. The length of each flat conductor 23 is substantially the same as the length of the insulating film 22 in the short direction. As the rectangular conductor 23, one plated with tin, gold, silver or the like is used. The rectangular conductor 23 used for grounding and the rectangular conductor 23 used for signaling may be different in size, plating, and the like.

グランドバー２４は、平角導体２３の長さ方向の一端から離れた状態で、複数本の平角導体２３の並列方向に延び、補強フィルム２１上の絶縁フィルム２２が貼られていない部分２１Ａに配置されている。グランドバー２４の両端は、絶縁フィルム２２の上面に配列された複数の平角導体２３のうち両端の平角導体２３と半田１５により導電接続されている。平角導体２３のうちグランドバーに接続されるものは、同軸電線２に接続される場合と接続されない場合といずれもある。   The ground bar 24 extends in the parallel direction of the plurality of flat conductors 23 while being separated from one end of the flat conductor 23 in the length direction, and is disposed in a portion 21A on the reinforcing film 21 where the insulating film 22 is not pasted. ing. Both ends of the ground bar 24 are electrically connected by solder 15 to the rectangular conductors 23 at both ends of the plurality of flat conductors 23 arranged on the upper surface of the insulating film 22. The flat conductor 23 connected to the ground bar is either connected to the coaxial cable 2 or not connected.

図２に示すように、フラットケーブル１の長手方向の端部において、フラットケーブル１と接続部材２０とが接続される。具体的には、フラットケーブル１の接続部１１が接続部材２０に重ね合わされ、同軸電線２から露出された接続電極である中心導体５と接続部材２０の平角導体２３とが半田によって導電接続されている。また、同軸電線２から露出された外部導体７と接続部材２０のグランドバー２４とが半田によって導電接続されている。グランドバー２４と平角導体２３との間隔および同軸電線２の接続部１１における外部導体７と中心導体５との間隔は、外部導体７をグランドバー２４に接続するのと中心導体５を平角導体２３に接続するのが同時に可能であるように調整される。   As shown in FIG. 2, the flat cable 1 and the connecting member 20 are connected to each other at the end in the longitudinal direction of the flat cable 1. Specifically, the connecting portion 11 of the flat cable 1 is superimposed on the connecting member 20, and the central conductor 5 that is the connecting electrode exposed from the coaxial cable 2 and the flat conductor 23 of the connecting member 20 are conductively connected by solder. Yes. Further, the outer conductor 7 exposed from the coaxial cable 2 and the ground bar 24 of the connection member 20 are conductively connected by solder. The distance between the ground bar 24 and the flat conductor 23 and the distance between the outer conductor 7 and the central conductor 5 in the connection portion 11 of the coaxial cable 2 are set such that the outer conductor 7 is connected to the ground bar 24 and the central conductor 5 is connected to the flat conductor 23. It is adjusted so that it can be connected at the same time.

近年、高速信号伝送を達成すべくシールド効果の高い配線材が要求されており、このような高速信号伝送に対応するためには同軸電線を備えるフラットケーブルを用いることが好適である。しかし、従来のフレキシブルフラットケーブル用の接続部材の構成では、この接続部材に同軸電線のグランドを落とす部分が形成できないため、同軸電線を備えたフラットケーブルの接続部材として用いることが困難であった。また、接続部材としてフレキシブルプリント基板等を用いることは可能であったが、高価であった。   In recent years, a wiring material having a high shielding effect has been required to achieve high-speed signal transmission. In order to cope with such high-speed signal transmission, it is preferable to use a flat cable having a coaxial cable. However, in the conventional configuration of the connecting member for the flexible flat cable, it is difficult to use the connecting member as a connecting member for a flat cable provided with a coaxial cable because a portion for dropping the ground of the coaxial cable cannot be formed on the connecting member. Moreover, although it was possible to use a flexible printed circuit board etc. as a connection member, it was expensive.

一方、本実施形態に係る接続部材２０は、絶縁フィルム２２上に並列された複数本の平角導体２３のうち少なくとも１つの平角導体２３と、補強フィルム２１上おいて複数本の平角導体２３の並列方向に延びているグランドバー２４とが導電接続されている。このような簡便な構成により、フラットケーブル１の同軸電線２のグランドを落とす部分を接続部材２０に形成することができる。そのため、高価なフレキシブルプリント基板等により接続部材を形成する必要がなく、フラットケーブル１の同軸電線２と導電接続される接続部材２０を安価に提供することができる。また、このような接続部材２０を高周波対応が可能な同軸電線２を備えたフラットケーブル１に接続することで、接続部材２０付きのフラットケーブル１を安価に提供することができる。   On the other hand, the connection member 20 according to the present embodiment includes at least one flat conductor 23 among a plurality of flat conductors 23 arranged in parallel on the insulating film 22 and a plurality of flat conductors 23 arranged on the reinforcing film 21. A ground bar 24 extending in the direction is conductively connected. With such a simple configuration, a portion where the ground of the coaxial cable 2 of the flat cable 1 is dropped can be formed in the connecting member 20. Therefore, it is not necessary to form a connection member with an expensive flexible printed circuit board or the like, and the connection member 20 that is conductively connected to the coaxial cable 2 of the flat cable 1 can be provided at low cost. Moreover, the flat cable 1 with the connection member 20 can be provided at low cost by connecting such a connection member 20 to the flat cable 1 provided with the coaxial cable 2 capable of supporting high frequencies.

また、本実施形態に係る接続部材２０によれば、補強フィルム２１の複数本の平角導体２３の長さ方向における一端部において、絶縁フィルム２２が貼られずに補強フィルム２１が露出され、この補強フィルム２１が露出した部分２１Ａにグランドバー２４が配置されている。したがって、簡便な構成により、グランドバー２４と導電接続される平角導体２３Ａ以外の平角導体２３と、グランドバー２４との意図しない導電を確実に防ぐことができる。また、同軸電線２の接続部１１における中心導体５と外部導体７との段差を部分的に吸収することもできる。   In addition, according to the connection member 20 according to the present embodiment, the reinforcing film 21 is exposed without being attached to the insulating film 22 at one end in the length direction of the plurality of flat conductors 23 of the reinforcing film 21, and this reinforcing A ground bar 24 is disposed in a portion 21A where the film 21 is exposed. Accordingly, unintentional conduction between the flat conductors 23 other than the flat conductor 23A conductively connected to the ground bar 24 and the ground bar 24 can be reliably prevented with a simple configuration. Further, the step between the central conductor 5 and the outer conductor 7 in the connection portion 11 of the coaxial cable 2 can be partially absorbed.

以上、本発明を詳細にまた特定の実施態様を参照して説明したが、本発明の精神と範囲を逸脱することなく様々な変更や修正を加えることができることは当業者にとって明らかである。また、上記説明した構成部材の数、位置、形状等は上記実施の形態に限定されず、本発明を実施する上で好適な数、位置、形状等に変更することができる。   While the invention has been described in detail and with reference to specific embodiments, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit and scope of the invention. In addition, the number, position, shape, and the like of the constituent members described above are not limited to the above-described embodiments, and can be changed to a number, position, shape, and the like that are suitable for carrying out the present invention.

上記実施の形態で説明した接続部材２０においては、複数の平角導体２３は互いに略同一の長さを有しているがこの例に限られない。例えば、図４に示すような接続部材２０Ａを用いても良い。この接続部材２０Ａの製造方法について図３及び図４を参照して説明する。   In the connection member 20 described in the above embodiment, the plurality of flat conductors 23 have substantially the same length, but the present invention is not limited to this example. For example, a connecting member 20A as shown in FIG. 4 may be used. A manufacturing method of the connecting member 20A will be described with reference to FIGS.

まず、図３に示すように、長尺の絶縁フィルム２２の上に複数本の平角導体２３を貼る。そして、平角導体２３が貼り付けられた長尺の絶縁フィルム２２を適当な大きさに切断する。   First, as shown in FIG. 3, a plurality of flat conductors 23 are pasted on a long insulating film 22. Then, the long insulating film 22 to which the flat conductor 23 is attached is cut into an appropriate size.

次に、図４（ａ）に示すように、切断された絶縁フィルム２２において、グランドバー２４に接続される平角導体２３Ａ以外の平角導体２３の一端部側の部分であってグランドバー２４が置かれる部分を、当該平角導体２３が貼り付けられた部分の絶縁フィルム２２とともに切り取る。これにより、グランドバー２４に接続されない平角導体２３の長さは、グランドバー２４と導電接続される平角導体２３Ａの長さよりも短くなる。   Next, as shown in FIG. 4A, in the cut insulating film 22, the ground bar 24 is placed on the one end side of the flat conductor 23 other than the flat conductor 23A connected to the ground bar 24. The portion to be cut is cut out together with the insulating film 22 of the portion to which the flat conductor 23 is attached. Accordingly, the length of the rectangular conductor 23 not connected to the ground bar 24 is shorter than the length of the rectangular conductor 23A conductively connected to the ground bar 24.

次に、図４（ｂ）に示すように、このような平角導体２３が貼り付けられた絶縁フィルム２２を補強フィルム２１へ貼りつける。そして、半田ペーストＳを平角導体２３Ａ上のグランドバー２４が接続される部分に塗布する。同様に、半田ペーストＳを平角導体２３，２３Ａ上において同軸電線２の中心導体５が接続される部分に塗布する。   Next, as shown in FIG. 4B, the insulating film 22 to which such a flat conductor 23 is attached is attached to the reinforcing film 21. And solder paste S is apply | coated to the part to which the ground bar 24 on the rectangular conductor 23A is connected. Similarly, the solder paste S is applied to the portion where the central conductor 5 of the coaxial cable 2 is connected on the flat conductors 23 and 23A.

最後に、図４（ｃ）に示すように、フラットケーブル１と接続部材２０Ａとを接続する。具体的には、平角導体２３Ａとグランドバー２４とを例えばヒーターまたはレーザーにより加熱して半田付けする。そして、グランドバー２４上に同軸電線２の外部導体７を半田付けするとともに、平角導体２３，２３Ａ上に同軸電線２の中心導体５を半田付けする。
なお、図４（ｃ）に示すように、外部導体７の上にさらにグランドバー２４を半田付けしてもよい。 Finally, as shown in FIG. 4C, the flat cable 1 and the connecting member 20A are connected. Specifically, the rectangular conductor 23A and the ground bar 24 are heated and soldered by, for example, a heater or a laser. Then, the outer conductor 7 of the coaxial cable 2 is soldered on the ground bar 24, and the central conductor 5 of the coaxial cable 2 is soldered on the flat conductors 23 and 23A.
As shown in FIG. 4C, a ground bar 24 may be further soldered on the outer conductor 7.

本変形例においては、グランドバー２４に接続されない平角導体２３の長さがグランドバー２４と導電接続される平角導体２３Ａの長さよりも短くなるようにグランドバー２４に接続されない平角導体２３および絶縁フィルム２２の一部を切り取っている。この構成によれば、接続部材２０Ａの複数の平角導体２３のうち、グランドバー２４に接続される平角導体２３Ａの位置を自由に設定可能となる。   In this modification, the rectangular conductor 23 not connected to the ground bar 24 and the insulating film so that the length of the flat conductor 23 not connected to the ground bar 24 is shorter than the length of the flat conductor 23A conductively connected to the ground bar 24. A part of 22 is cut off. According to this configuration, the position of the rectangular conductor 23A connected to the ground bar 24 among the plurality of rectangular conductors 23 of the connecting member 20A can be freely set.

なお、図４（ａ）においては、絶縁フィルム２２の長手方向に沿った片方の側面（図４（ａ）中の下面）側において、平角導体２３および絶縁フィルム２２の一端側の部分をそれぞれ切り取っているが、平角導体２３および絶縁フィルム２２の切り取り方はこの例に限られない。例えば、図５（ａ）に示すように、グランドバー２４に接続される平角導体２３Ａ（図５中の最も左側に配置された平角導体２３Ａ）以外の平角導体２３において、これらの平角導体２３の両端部は残しておき、その両端部以外の部分であってグランドバー２４が置かれる部分を、絶縁フィルム２２とともに一度に切り取る方法を採用してもよい。その後、図５（ｂ）に示すように、このような平角導体２３が貼り付けられた絶縁フィルム２２を補強フィルム２１へ貼りつけることで、図４と同様に、グランドバー２４に接続されない平角導体２３の長さがグランドバー２４と導電接続される平角導体２３Ａの長さよりも短い接続部材２０Ａ１を作製することができる。   In FIG. 4A, the flat conductor 23 and one end side portion of the insulating film 22 are cut off on one side surface (the lower surface in FIG. 4A) along the longitudinal direction of the insulating film 22. However, the method of cutting the flat conductor 23 and the insulating film 22 is not limited to this example. For example, as shown in FIG. 5A, in the flat conductors 23 other than the flat conductor 23A (the flat conductor 23A arranged on the leftmost side in FIG. 5) connected to the ground bar 24, A method may be employed in which both end portions are left and a portion other than the both end portions and where the ground bar 24 is placed is cut together with the insulating film 22. Thereafter, as shown in FIG. 5B, by attaching the insulating film 22 to which such a flat conductor 23 is attached to the reinforcing film 21, the flat conductor that is not connected to the ground bar 24 as in FIG. A connecting member 20A1 having a length 23 shorter than the length of the flat conductor 23A conductively connected to the ground bar 24 can be produced.

上記実施の形態においては、複数本の平角導体２３は、すべて絶縁フィルム２２上に配列されているが、この例に限られない。例えば、図６（ａ），（ｂ）に示される接続部材２０Ｂのように、補強フィルム２１上の複数本の平角導体２３の並列方向の少なくとも一部において、絶縁フィルム２２が貼られずに補強フィルム２１が露出されていてもよい。この例においては、補強フィルム２１が露出された部分２１Ｂ上に複数本の平角導体２３のうち両端の平角導体２３Ａが配置され、これらの平角導体２３Ａが補強フィルム２１上に設けられたグランドバー２４の両端と導電接続されている。なお、絶縁フィルム２２上に配列された複数本の平角導体２３と両端の平角導体２３Ａとの高さ方向の上面を合わせるため、両端の平角導体２３Ａは、絶縁フィルム２２の厚さと絶縁フィルム２２上の平角導体２３の厚さとを合わせた厚さを有していることが好ましい。
この構成によれば、信号線部となる絶縁フィルム２２上の平角導体２３と、グランド線部となる両端の平角導体２３Ａとの判別を容易にし、平角導体２３Ａとグランドバー２４との接続作業性を向上させることができる。
この例でも、グランドバー２４を補強フィルム２１上に直接貼り付けてグランド端子として使用する平角導体２３Ａとグランドバー２４とを、導電性接着剤や金属箔等により電気的に接続してもよい。 In the above-described embodiment, the plurality of flat rectangular conductors 23 are all arranged on the insulating film 22, but the present invention is not limited to this example. For example, like the connecting member 20B shown in FIGS. 6A and 6B, at least a part of the parallel conductors 23 on the reinforcing film 21 in the parallel direction is reinforced without the insulating film 22 being attached. The film 21 may be exposed. In this example, flat conductors 23A at both ends of a plurality of flat conductors 23 are arranged on a portion 21B where the reinforcing film 21 is exposed, and the ground bars 24 provided on the reinforcing film 21 are provided with these flat conductors 23A. Are electrically conductively connected to both ends. In addition, in order to match the upper surfaces in the height direction of the plurality of flat conductors 23 arranged on the insulating film 22 and the flat conductors 23A on both ends, the flat conductors 23A on both ends are formed on the insulating film 22 with the thickness of the insulating film 22. It is preferable that the thickness of the flat conductor 23 is a total thickness.
According to this configuration, the rectangular conductor 23 on the insulating film 22 serving as the signal line portion and the flat conductors 23A at both ends serving as the ground line portion can be easily distinguished, and the connection workability between the rectangular conductor 23A and the ground bar 24 is facilitated. Can be improved.
Also in this example, the flat conductor 23A, which is used as a ground terminal by directly bonding the ground bar 24 on the reinforcing film 21, and the ground bar 24 may be electrically connected by a conductive adhesive, metal foil, or the like.

また、図７に示す接続部材２０Ｃのように、補強フィルム２１の下面に銅からなる導電基板２５が貼り付けられ、この導電基板２５とグランド線部となる両端の平角導体２３Ａとが断面略Ｃ字状のグランド部材２４Ａにより導電接続されている構成としてもよい。この構成によれば、銅からなる導電基板２５を設けることにより接続部材２０Ｃの高周波伝送特性を向上させることができる。   Further, as in the connecting member 20C shown in FIG. 7, a conductive substrate 25 made of copper is attached to the lower surface of the reinforcing film 21, and the conductive substrate 25 and the rectangular conductors 23A at both ends serving as the ground wire portions have a substantially C cross section. It is good also as a structure electrically conductively connected by the character-shaped ground member 24A. According to this configuration, the high-frequency transmission characteristics of the connecting member 20C can be improved by providing the conductive substrate 25 made of copper.

また、図８に示す接続部材２０Ｄのように、両端の平角導体２３Ａ上にグランドバー２４の両端を配置し、グランドバー２４の平角導体２３Ａ上に配置された部分に穴を設け、その穴に導電性接着剤２６を埋め込むことで、平角導体２３Ａとグランドバー２４とを導電接続させる構成としてもよい。   Further, like the connecting member 20D shown in FIG. 8, both ends of the ground bar 24 are arranged on the rectangular conductors 23A at both ends, and holes are provided in the portions of the ground bar 24 arranged on the rectangular conductors 23A. A configuration in which the rectangular conductor 23A and the ground bar 24 are conductively connected by embedding the conductive adhesive 26 may be employed.

さらに、図９に示すように、補強フィルム２１において、複数本の平角導体２３の並列方向における中央部にも、絶縁フィルム２２が貼られずに補強フィルム２１が露出した部分２１Ｃが設けられる構成としてもよい。この例においては、補強フィルム２１の両端および中央部の露出部分２１Ｃにグランド線部となる３本の平角導体２３Ａが配置され、これらの平角導体２３Ａが、複数本の平角導体２３の並列方向に沿って延びる単一のグランドバー２４と導電接続されている。この例ではグランドバーの中央部分からも接地されるのでグランド電位が一層安定して好ましい。
このように、接続部材２０Ｅにおいては、グランド線部となる平角導体２３Ａを自由に配列させることができる。 Furthermore, as shown in FIG. 9, in the reinforcing film 21, a portion 21 </ b> C where the insulating film 22 is not attached and the reinforcing film 21 is exposed is provided also in the central portion in the parallel direction of the plurality of flat conductors 23. Also good. In this example, three flat conductors 23A serving as ground line portions are arranged at both ends and a central exposed portion 21C of the reinforcing film 21, and these flat conductors 23A are arranged in the parallel direction of the plurality of flat conductors 23. It is conductively connected to a single ground bar 24 extending along. In this example, since the ground portion is also grounded, the ground potential is more stable and preferable.
Thus, in the connection member 20E, the rectangular conductors 23A that become the ground line portions can be freely arranged.

なお、上記の実施形態においては、グランドバー２４は、補強フィルム２１上の絶縁フィルム２２が貼られていない部分２１Ａに配置されているが、補強フィルム２１の上面全体に絶縁フィルム２２が張り付けられ、グランドバー２４もこの絶縁フィルム２２の上面に配置される構成としてもよい。この場合、グランドバー２４と導電接続される平角導体２３（２３Ａ）以外の平角導体２３とグランドバー２４との意図しない導電を防ぐため、グランドバー２４を平角導体２３の長さ方向の一端から離れた状態で配置しておくことが必要である。   In the above embodiment, the ground bar 24 is disposed in the portion 21A where the insulating film 22 on the reinforcing film 21 is not pasted, but the insulating film 22 is attached to the entire upper surface of the reinforcing film 21, The ground bar 24 may also be arranged on the upper surface of the insulating film 22. In this case, the ground bar 24 is separated from one end in the length direction of the flat conductor 23 in order to prevent unintentional conduction between the flat conductor 23 and the ground bar 24 other than the flat conductor 23 (23A) conductively connected to the ground bar 24. It is necessary to arrange it in the state where

上記の実施形態においては、フラットケーブル１は、接続部材２０に備わる平角導体２３と同数の同軸電線２を有しているが、同軸電線２の数は接続部材２０の平角導体２３の数よりも少なくてもよい。すなわち、複数の平角導体２３のうちグランドバー２４と接続されない平角導体２３にのみ同軸電線２が導電接続され、グランドバー２４と導電接続される平角導体２３（２３Ａ）には同軸電線２が接続されない構成を採用しても良い。   In the above embodiment, the flat cable 1 has the same number of the coaxial electric wires 2 as the flat conductors 23 provided in the connecting member 20, but the number of the coaxial electric wires 2 is larger than the number of the rectangular conductors 23 of the connecting member 20. It may be less. That is, the coaxial cable 2 is conductively connected only to the rectangular conductor 23 that is not connected to the ground bar 24 among the plurality of rectangular conductors 23, and the coaxial cable 2 is not connected to the rectangular conductor 23 (23A) that is conductively connected to the ground bar 24. A configuration may be adopted.

１：フラットケーブル
２：同軸電線
３：絶縁フィルム（第３絶縁フィルムの一例）
５：中心導体
６：絶縁体
７：外部導体
８：外被
１１：接続部
１５，２６：半田
２０，２０Ａ，２０Ｂ，２０Ｃ，２０Ｄ：接続部材
２１：補強フィルム（第１絶縁フィルムの一例）
２１Ａ：補強フィルムの露出部分
２２：絶縁フィルム（第２絶縁フィルムの一例）
２３，２３Ａ：平角導体
２４：グランドバー 1: Flat cable 2: Coaxial wire 3: Insulating film (an example of a third insulating film)
5: Center conductor 6: Insulator 7: External conductor 8: Outer sheath 11: Connection portion 15, 26: Solder 20, 20A, 20B, 20C, 20D: Connection member 21: Reinforcing film (an example of a first insulating film)
21A: Exposed portion of the reinforcing film 22: Insulating film (an example of a second insulating film)
23, 23A: Flat conductor 24: Ground bar

Claims (4)

第１絶縁フィルムと、第２絶縁フィルムと、複数本の平角導体と、グランドバーとを備えた接続部材であって、
前記第２絶縁フィルムは、前記第１絶縁フィルムの上に貼り付けられ、
前記複数本の平角導体は、並列された状態で前記第２絶縁フィルムの上に貼り付けられ、
前記第１絶縁フィルムは、前記第２絶縁フィルムが貼られずに部分的に露出され、
前記グランドバーは、前記複数本の平角導体から離れて、前記第１絶縁フィルムが露出した部分に配置され、
前記グランドバーは、前記複数本の平角導体のうち少なくとも１つの平角導体と導電接続されている、接続部材。 A connecting member comprising a first insulating film, a second insulating film, a plurality of flat conductors, and a ground bar;
The second insulating film is affixed on the first insulating film,
The plurality of flat conductors are affixed on the second insulating film in a parallel state,
The first insulating film is partially exposed without the second insulating film being applied,
The ground bar is disposed in a portion where the first insulating film is exposed apart from the plurality of flat conductors,
The ground bar is a connection member that is conductively connected to at least one of the plurality of flat conductors. 前記グランドバーに接続されない平角導体の長さは、前記グランドバーと導電接続される平角導体の長さよりも短い、請求項１に記載の接続部材。 The connecting member according to claim 1 , wherein a length of the flat conductor not connected to the ground bar is shorter than a length of the flat conductor conductively connected to the ground bar . 前記複数本の平角導体の並列方向に沿った少なくとも一部において、前記第１絶縁フィルム上に前記第２絶縁フィルムが貼られずに前記第１絶縁フィルムが露出され、
前記第１絶縁フィルムが露出した部分に前記複数本の平角導体のうち少なくとも１つの平角導体が配置され、
前記第１絶縁フィルムが露出した部分に配置された平角導体は、前記グランドバーと導電接続されている、請求項１または請求項２に記載の接続部材。 In at least a part along the parallel direction of the plurality of flat conductors, the first insulating film is exposed without the second insulating film being pasted on the first insulating film,
At least one rectangular conductor among the plurality of rectangular conductors is disposed on the exposed portion of the first insulating film,
The connecting member according to claim 1 or 2 , wherein the flat conductor disposed in the portion where the first insulating film is exposed is conductively connected to the ground bar . 請求項１から請求項３のいずれか一項に記載の接続部材にフラットケーブルが接続されている接続部材付きフラットケーブルであって、A flat cable with a connecting member in which a flat cable is connected to the connecting member according to any one of claims 1 to 3,
前記フラットケーブルは、  The flat cable is
中心導体の周囲に、絶縁体、外部導体及び外被が同軸状に順次積層され、前記フラットケーブルの一端側から前記中心導体、前記絶縁体および前記外部導体が順に露出されている複数本の同軸電線と、    Around the center conductor, an insulator, an outer conductor, and a jacket are sequentially laminated in a coaxial manner, and a plurality of coaxials in which the center conductor, the insulator, and the outer conductor are sequentially exposed from one end side of the flat cable. Electric wires,
平面状に配列された前記複数本の同軸電線の配列面に貼り合わされる第３絶縁フィルムと、を有し、    A third insulating film bonded to the arrangement surface of the plurality of coaxial electric wires arranged in a plane,
前記同軸電線の数が前記接続部材の平角導体の数よりも少なく、  The number of the coaxial wires is less than the number of rectangular conductors of the connection member,
各中心導体が各前記平角導体に導電接続されるとともに、各外部導体が前記接続部材の前記グランドバーに導電接続されている、接続部材付きフラットケーブル。  A flat cable with a connecting member, wherein each central conductor is conductively connected to each of the rectangular conductors, and each external conductor is conductively connected to the ground bar of the connecting member.
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