JP2006079936A - Flat cable - Google Patents

Flat cable Download PDF

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JP2006079936A
JP2006079936A JP2004262682A JP2004262682A JP2006079936A JP 2006079936 A JP2006079936 A JP 2006079936A JP 2004262682 A JP2004262682 A JP 2004262682A JP 2004262682 A JP2004262682 A JP 2004262682A JP 2006079936 A JP2006079936 A JP 2006079936A
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outer peripheral
insulating coating
flat cable
shield layer
peripheral side
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JP4133980B2 (en
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Takafumi Takahashi
尚文 高橋
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Kel Corp
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Kel Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a flat cable capable of easily molding a ground connection part formed by exposing a part for pressure contacting with a contact and a shield layer on a tip end part thereof, of which, wires constituting the shield layer are made so as not to be loosened. <P>SOLUTION: The flat cable is formed by arraying a plurality of coaxial cables 20 composed of core wires 21, an inner peripheral side insulation cover 22, the shield layer 23, and an outer peripheral side insulation cover 24 in parallel with each other on a flat plane, and holding them by a holding tape 27. On the flat cable, pressure connection parts 22a are formed by peeling off the outer peripheral side insulation cover 24 and the shield layer 23 at the end part of the coaxial cable 20 extending outward from the end part of the holding tape 27 in a range of a prescribed length "a" from a tip end part, and grounding connection parts 23a are formed by peeling off the outer peripheral side insulation cover 24 while making the outer peripheral side insulation cover 24a and the outer peripheral side insulation cover at side part 24b with a prescribed width "c" left in a range of a prescribed length "b" from an inside end part of the pressure contact part 22a. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、複数の同軸ケーブルを同一平面状に平行に並べて保持して構成されるフラットケーブルに関する。   The present invention relates to a flat cable configured by holding a plurality of coaxial cables arranged in parallel on the same plane.

直線状に延びる芯線を内周側絶縁被覆により覆い、この内周側絶縁被覆の外周をシールド層により覆い、このシールド層の外周を外周側絶縁被覆により覆って構成される同軸ケーブルは従来から一般的に知られている。近年においては、同軸ケーブルを細径化する傾向が強く、例えば、芯線径が約0.1mmで、全体径(外周側絶縁被覆の径)が約0.35mm程度の極く細い同軸ケーブルも用いられている。このような同軸ケーブルを複数本、同一平面上に平行に並べて保持して構成されるフラットケーブルも知られている(例えば、特許文献1参照)。     Conventionally, a coaxial cable configured by covering a linearly extending core wire with an inner peripheral insulating coating, covering the outer periphery of the inner peripheral insulating coating with a shield layer, and covering the outer periphery of the shield layer with an outer peripheral insulating coating has been generally used. Known. In recent years, there is a strong tendency to reduce the diameter of the coaxial cable. For example, a very thin coaxial cable having a core wire diameter of about 0.1 mm and an overall diameter (diameter of the outer insulating coating) of about 0.35 mm is also used. It has been. A flat cable is also known that is configured by holding a plurality of such coaxial cables in parallel on the same plane (see, for example, Patent Document 1).

このようなフラットケーブルはその端部にコネクタが取り付けられて使用されるが、コネクタの取り付けに際しては、フラットケーブル端部において同軸ケーブルの外周および内周側絶縁被覆およびシールド層が剥がされて露出した芯線をコネクタの各コンタクトに半田付けしたり、外周側絶縁被覆およびシールド層のみを剥がして芯線を被覆した状態の内周側絶縁被覆を露出させ、この部分をコンタクトの圧接部に圧接接続させたりしている。   Such a flat cable is used with a connector attached to the end thereof. When the connector is attached, the outer periphery and inner peripheral insulation coating and shield layer of the coaxial cable are peeled off and exposed at the end of the flat cable. Solder the core wire to each contact of the connector, or peel off only the outer peripheral side insulation coating and shield layer to expose the inner peripheral side insulation coating with the core wire covered, and press this part to the press contact part of the contact is doing.

特開平10−144145号公報Japanese Patent Laid-Open No. 10-144145

ところで、上記のような極細の同軸ケーブルを用いて構成されるフラットケーブルにおいて、コンタクトとの半田付けのために芯線を露出させたり、コンタクトとの圧接接続のために内周側絶縁被覆を露出させたりするときに、同軸ケーブル自体が非常に細く、且つこのように芯線、内周側絶縁被覆などが露出される同軸ケーブル先端部においてはホールディングテープ等による各同軸ケーブルの保持がなされていないため、この先端部が変形しやすく、芯線、内周側絶縁被覆などを露出させる加工が非常に難しいという問題がある。   By the way, in the flat cable configured using the above-described ultra-fine coaxial cable, the core wire is exposed for soldering with the contact, or the inner peripheral insulating coating is exposed for pressure contact connection with the contact. Since the coaxial cable itself is very thin, and the coaxial cable tip where the core wire, inner peripheral side insulation coating, etc. are exposed is not held by the holding tape or the like, There is a problem that the tip portion is easily deformed and it is very difficult to expose the core wire, the inner peripheral insulating coating, and the like.

なお、上記特許文献1においては、外周側絶縁被覆を剥がして露出したシールド層の上に2組のグランドバー(金属泊)を半田付けし、これら2組のグランドバーを屈曲させてその間においてシールド層を切断し、先端側のグランドバーと一緒にシールド層を除去する方法が開示されているが、グランドバーの半田付け作業が必要であるなど、多数の加工工程が必要で、加工作業に手間がかかるという問題がある。   In Patent Document 1, two sets of ground bars (metal stays) are soldered on the shield layer exposed by peeling off the outer peripheral insulating coating, and the two sets of ground bars are bent and shielded between them. Although the method of cutting the layer and removing the shield layer together with the ground bar on the tip side is disclosed, many processing steps are required, such as the soldering work of the ground bar being required, and the processing work is troublesome There is a problem that it takes.

本発明はこのような問題に鑑みたもので、簡単な加工作業でフラットケーブルの先端部においてコンクタトとの圧接接続のために内周側絶縁被覆を露出させることができ、且つその根本側においてシールド層を露出させるとともにこのシールド層を構成する電線がほぐれることが無いような構成のフラットケーブルを提供することを目的とする。   The present invention has been made in view of such a problem, and the inner peripheral side insulation coating can be exposed at the front end portion of the flat cable for press contact with the contactor by a simple processing operation, and the shield is provided at the root side. An object of the present invention is to provide a flat cable having a structure in which the layer is exposed and the electric wire constituting the shield layer is not loosened.

このような目的達成のため、本発明においては、直線状に延びる芯線、芯線を覆って設けられた内周側絶縁被覆、内周側絶縁被覆の外周を覆って設けられたシールド層、およびシールド層の外周を覆って設けられた外周側絶縁被覆から構成される同軸ケーブルを、複数本、同一平面上に平行に並べて保持してフラットケーブルが構成される。そして、このフラットケーブルにおける同軸ケーブルの端部において、先端から第1の所定長さの範囲において外周側絶縁被覆およびシールド層が剥がされて内周側絶縁被覆が露出して圧接部が形成されており、圧接部の内端から第2の所定長さの範囲において先端側に所定幅の外周側絶縁被覆を残してシールド層が露出する様に外周側絶縁被覆が一部面剥がされて接地接続部が形成されている。   In order to achieve such an object, in the present invention, a linearly extending core wire, an inner peripheral insulating coating provided to cover the core wire, a shield layer provided to cover the outer periphery of the inner peripheral insulating coating, and a shield A flat cable is configured by holding a plurality of coaxial cables formed of an outer peripheral insulating coating provided so as to cover the outer periphery of the layers in parallel on the same plane. Then, at the end portion of the coaxial cable in the flat cable, the outer peripheral insulating coating and the shield layer are peeled off within the first predetermined length from the tip, and the inner peripheral insulating coating is exposed to form a pressure contact portion. In the range of the second predetermined length from the inner end of the press-contact part, the outer peripheral insulating coating is partially peeled off so that the shield layer is exposed leaving the outer peripheral insulating coating of a predetermined width on the tip side, and grounded The part is formed.

なお、複数の同軸ケーブルがホールディングテープにより同一平面上に平行に並べて保持されてフラットケーブルが形成され、同軸ケーブルの端部がホールディングテープの端部より外方に突出しており、このように突出する同軸ケーブルの端部において圧接部および接地接続部が形成されているような構成とすることができる。   A plurality of coaxial cables are held in parallel on the same plane by the holding tape to form a flat cable, and the end of the coaxial cable protrudes outward from the end of the holding tape. It can be set as the structure by which the press-contact part and the grounding connection part are formed in the edge part of a coaxial cable.

このフラットケーブルにおいては、同軸ケーブルの先端から第1の所定長さの位置において、YAGレーザにより外周側絶縁被覆およびシールド層を切断し、この第1の所定長さの範囲に位置する外周側絶縁被覆およびシールド層を引き抜いて内周側絶縁被覆を露出させて圧接部が形成され、この圧接部の内端から第2の所定長さの範囲において、先端側の所定幅及び第2の所定長さの範囲での側面の一部の範囲を除く領域内にCO2レーザを照射して外周側絶縁被覆を一部溶融除去して接地接続部が形成されるのが好ましい。 In this flat cable, the outer peripheral side insulation coating and the shield layer are cut by the YAG laser at a position of the first predetermined length from the end of the coaxial cable, and the outer peripheral side insulation is located in the range of the first predetermined length. The pressure-insulating portion is formed by extracting the coating and the shield layer to expose the inner peripheral insulating coating, and within the range of the second predetermined length from the inner end of the pressure-contacting portion, the predetermined width on the front end side and the second predetermined length. Preferably, the ground connection portion is formed by irradiating the CO 2 laser in a region excluding a part of the side surface within this range to melt and remove a part of the outer peripheral insulating coating.

以上の構成のフラットケーブルでは、圧接部の内端から第2の所定長さの範囲において先端側及び側面の一部に所定幅の外周側絶縁被覆を残して外周側絶縁被覆が剥がされて接地接続部が形成されており、接地接続部において露出するシールド層は、先端側に所定幅を有して残された外周側絶縁被覆及びそれを支持する側面の一部に残された外周側側面絶縁被覆により保持されるので、シールド層を形成する多数の横巻き極細電線がバラバラにほぐれることがなく、フラットケーブルの先端にコネクタを圧接接続するとともにシールド層をグランド接続するときの接続信頼性が向上する。また、YAGレーザにより外周側絶縁被覆およびシールド層を切断し、CO2レーザを照射して外周側絶縁被覆を溶融除去して接地接続部が形成されるので、フラットケーブル先端部における各同軸ケーブルを曲げたり変形させたりするような外力が作用することがなく、これらが変形することなく、正確なピッチをそのまま維持することができる。このため、フラットケーブルの先端にコネクタを圧接接続する作業を精度良く行うことができる。 In the flat cable having the above configuration, the outer peripheral insulating coating is peeled off while leaving the outer peripheral insulating coating having a predetermined width on the tip side and a part of the side surface within the second predetermined length from the inner end of the press contact portion, and is grounded. The shield part exposed at the ground connection part is formed with a connection part, the outer peripheral side insulation coating left with a predetermined width on the tip side, and the outer peripheral side face left on a part of the side surface supporting it Since it is held by the insulation coating, the numerous horizontally wound ultrafine wires that form the shield layer do not come apart, and the connection reliability when the connector is pressed and connected to the tip of the flat cable and the shield layer is grounded improves. In addition, the outer peripheral insulation coating and the shield layer are cut with a YAG laser, and the outer peripheral insulation coating is melted and removed by irradiating the CO 2 laser to form the ground connection portion. An external force that can be bent or deformed does not act, and the accurate pitch can be maintained as it is without deformation. For this reason, the operation | work which press-connects a connector to the front-end | tip of a flat cable can be performed with sufficient precision.

上記構成の本発明に係るフラットケーブルによれば、圧接部の内端から第2の所定長さの範囲において先端側の所定幅及び側面の一部に外周側絶縁被覆を残して外周側絶縁被覆が剥がされて接地接続部が形成されており、接地接続部において露出するシールド層は先端側に所定幅を有して残された外周側絶縁被覆により保持されるので、シールド層を形成する多数の横巻き極細電線がバラバラにほぐれることがなく、フラットケーブルの先端にコネクタを圧接接続するとともにシールド層をグランド接続するときの接続信頼性が向上する。なお、この先端側の所定幅の外周側絶縁被覆に加えて第2の所定長さの範囲で側面の一部を残すことで、先端側の外周側絶縁被覆を安定させ、シールド層を形成する多数の横巻き極細電線がバラバラにほぐれることを効果的に防ぐことができる。また、YAGレーザにより外周側絶縁被覆およびシールド層を切断し、CO2レーザを照射して外周側絶縁被覆を溶融除去して接地接続部が形成されるので、フラットケーブル先端部における各同軸ケーブルを曲げたり変形させたりするような外力が作用することがなく、これらが変形することなく、正確なピッチをそのまま維持することができる。このため、フラットケーブルの先端にコネクタを圧接接続する作業を精度良く行うことができる。 According to the flat cable according to the present invention having the above-described configuration, the outer peripheral side insulating coating leaves the outer peripheral side insulating coating on the predetermined width on the front end side and part of the side surface in the range of the second predetermined length from the inner end of the press contact portion. Is peeled off to form a ground connection portion, and the shield layer exposed at the ground connection portion is held by the outer peripheral insulating coating having a predetermined width on the tip side, so that a large number of shield layers are formed. Therefore, the connection reliability when the connector is pressed and connected to the tip of the flat cable and the shield layer is grounded is improved. In addition to the outer peripheral insulating coating having a predetermined width on the front end side, by leaving a part of the side surface in the second predetermined length range, the outer peripheral insulating coating on the front end side is stabilized and a shield layer is formed. It is possible to effectively prevent a large number of horizontally wound fine wires from being loosened apart. Further, by cutting the outer peripheral side insulating coating and the shield layer by YAG laser, since the ground connection by melting removing outer peripheral side insulating coating is irradiated with CO 2 laser is formed, a respective coaxial cable of the flat cable head An external force that can be bent or deformed does not act, and the accurate pitch can be maintained as it is without deformation. For this reason, the operation | work which press-connects a connector to the front-end | tip of a flat cable can be performed with sufficient precision.

本発明のフラットケーブルの製造方法と上述した特許文献1とを対比すると分かるように、本発明では加工工数が格段に少ない簡単な製造方法によりフラットケーブルを製造できる。さらに、特許文献1に示されているグランドバーを半田によりシールド層に固定するという工程が不要であり、半田を使わないため環境に優しい製造が可能となる。   As can be seen from the comparison between the flat cable manufacturing method of the present invention and the above-mentioned Patent Document 1, in the present invention, the flat cable can be manufactured by a simple manufacturing method with remarkably fewer processing steps. Furthermore, the process of fixing the ground bar shown in Patent Document 1 to the shield layer with solder is unnecessary, and since no solder is used, environmentally friendly manufacturing is possible.

以下、図面を参照して本発明の好ましい実施形態について説明する。   Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

まず、図1〜図3を参照して、本発明を適用するフラットケーブルの構造について説明する。フラットケーブルFCは、図1(A)に示すように、複数本の極細同軸ケーブル20をホールディングテープ27により同一平面上に平行に且つ等間隔で並べて接着保持して構成される。なお、ホールディングテープ27は、複数の同軸ケーブル20を両側から挟持しても良いし、片側にのみ設けても良い。   First, the structure of a flat cable to which the present invention is applied will be described with reference to FIGS. As shown in FIG. 1A, the flat cable FC is configured by adhering and holding a plurality of micro coaxial cables 20 in parallel on the same plane at equal intervals by a holding tape 27. The holding tape 27 may sandwich the plurality of coaxial cables 20 from both sides, or may be provided only on one side.

各同軸ケーブル20の構造を図1(B)に示しており、複数本(ここでは7本)の極細電線を寄り合わせて作られた芯線21の周囲に絶縁材料からなる内周側絶縁被覆22を設け、この内周側絶縁被覆22の外周に複数の極細電線を横巻きに設けてシールド層23を設け、このシールド層23の外周に絶縁材料からなる外周側絶縁被覆24を設けて同軸ケーブル20が構成されている。この同軸ケーブル20は非常に細い径に作られており、例えば、芯線21の外径が約0.1mm、全体の外径(外周側絶縁被覆24の外径)が約0.35mm程度に作られている。   The structure of each coaxial cable 20 is shown in FIG. 1 (B), and an inner peripheral insulating coating 22 made of an insulating material around a core wire 21 formed by bringing a plurality (seven in this case) of ultrafine wires close to each other. A plurality of extra fine wires are laterally wound around the outer periphery of the inner peripheral insulating coating 22 to provide a shield layer 23, and an outer peripheral insulating coating 24 made of an insulating material is provided on the outer periphery of the shield layer 23 to provide a coaxial cable. 20 is configured. The coaxial cable 20 has a very thin diameter. For example, the outer diameter of the core wire 21 is about 0.1 mm, and the overall outer diameter (outer diameter of the outer peripheral insulating coating 24) is about 0.35 mm. It has been.

本発明に係るフラットケーブルは、このような構成のフラットケーブルFCの端部をコネクタにそのまま圧接接続できるような形状に加工して作られるが、この加工成形工程を以下に説明する。まず、図1(A)に示すように、フラットケーブルFCの端部においてホールディングテープ27を剥がして同軸ケーブル20の端部を平行に並んだ状態のまま露出させる。そして、これら同軸ケーブル20の端面から第1の所定距離aの位置(図1(A)においてX−Xで示す位置)においてYAGレーザを照射して外周側絶縁被覆24およびシールド層23のみを切断する加工を行う。   The flat cable according to the present invention is manufactured by processing the end portion of the flat cable FC having such a configuration into a shape that can be press-connected to the connector as it is. This processing and forming step will be described below. First, as shown in FIG. 1A, the holding tape 27 is peeled off at the end of the flat cable FC to expose the end of the coaxial cable 20 in a state of being arranged in parallel. Then, YAG laser is irradiated at a position of a first predetermined distance a from the end face of the coaxial cable 20 (position indicated by XX in FIG. 1A), and only the outer peripheral insulating coating 24 and the shield layer 23 are cut. The processing to do.

そして、このように切断された位置(X−Xで示す位置)より外端側の部分にホールディングテープを貼り付ける等して、同軸ケーブル20における切断位置より外端側を一緒に外方に引き出すと、外周側絶縁被覆24およびシールド層23のみが切断位置から離れて、除去できる。このようにして切断位置から外端側の外周側絶縁被覆24およびシールド層23を除去した状態を図2に示しており、この図から分かるように、先端から切断位置までの間においては内周側絶縁被覆22が露出する。なお、このように内周側絶縁被覆22が露出する部分を圧接部22aと称する。   Then, by sticking a holding tape to a portion on the outer end side from the position cut in this way (position indicated by XX), the outer end side is pulled out together from the cutting position in the coaxial cable 20 together. Only the outer peripheral insulating coating 24 and the shield layer 23 can be removed away from the cutting position. FIG. 2 shows a state in which the outer peripheral insulating coating 24 and the shield layer 23 on the outer end side have been removed from the cutting position in this way. As can be seen from this figure, the inner periphery is between the tip and the cutting position. The side insulating coating 22 is exposed. The portion where the inner peripheral insulating coating 22 is exposed is referred to as a pressure contact portion 22a.

次に、上記切断位置(すなわち、圧接部の内端位置)から第2の所定距離bまでの範囲において、上記切断位置から所定幅cの範囲を除く部分にCO2レーザを照射して外周側絶縁被覆24を一部溶融除去する。この結果、図3(A),(B)に示すように、先端側から第1の所定距離aだけ内周側絶縁被覆22が露出して圧接接続部22aが形成され、その内端端から第2の所定距離bの範囲内においては、所定幅cのリング状の外周側絶縁被覆24aと外周側側面絶縁被覆24bとが残され、残りの部分においてシールド層23が露出した状態となる。このようにシールド層23が露出した部分を接地接続部23aと称する。シールド層23は多数の極細電線を横巻きに設けて形成されているため、シールド層23をそのまま露出させただけでは接地接続部23aにおいて各極細電線がほぐれてバラバラになり易いが、このようにリング状の外周側絶縁被覆24aを残すことにより、各極細電線を保持してバラバラとなるのを防止する。このとき、外周側側面絶縁被覆24bは、リング状の外周側絶縁被覆24aを外周側絶縁被覆24全体と固定することで、外周側絶縁被覆24aの各極細電線を保持する働きを安定させる。 Next, in the range from the cutting position (that is, the inner end position of the press contact portion) to the second predetermined distance b, a portion excluding the range of the predetermined width c from the cutting position is irradiated with CO 2 laser, and the outer peripheral side A part of the insulating coating 24 is melted and removed. As a result, as shown in FIGS. 3A and 3B, the inner peripheral insulating coating 22 is exposed by the first predetermined distance a from the front end side to form the press contact connection portion 22a, and from the inner end end thereof, Within the range of the second predetermined distance b, the ring-shaped outer peripheral insulating coating 24a and the outer peripheral side insulating coating 24b having a predetermined width c are left, and the shield layer 23 is exposed in the remaining portion. The portion where the shield layer 23 is exposed in this way is referred to as a ground connection portion 23a. Since the shield layer 23 is formed by providing a number of extra fine wires in a horizontal winding, the extra fine wires tend to be loosened and fall apart at the ground connection portion 23a just by exposing the shield layer 23 as it is. By leaving the ring-shaped outer peripheral insulating coating 24a, it is possible to prevent the individual fine wires from being held apart. At this time, the outer peripheral side surface insulating coating 24b fixes the ring-shaped outer peripheral side insulating coating 24a to the entire outer peripheral side insulating coating 24, thereby stabilizing the function of holding the fine electric wires of the outer peripheral side insulating coating 24a.

このように端部が加工された状態のフラットケーブルが本発明の実施形態に係るフラットケーブルFCであり、このフラットケーブルFCの端部にコネクタが取り付けられて作られるコネクタ付きケーブルについて、図4および図5を参照して説明する。   The flat cable with the end processed in this way is the flat cable FC according to the embodiment of the present invention, and a cable with a connector manufactured by attaching a connector to the end of the flat cable FC is shown in FIG. This will be described with reference to FIG.

まず、上記構成のフラットケーブルFCの端部に接続されるプラグコネクタPCの構造について説明する。プラグコネクタPCは、圧接カバー1と、コネクタ本体5とから構成される。図4に示すように、圧接カバー1に上記のように構成されたフラットケーブルFCの端部が取り付けられ、この圧接カバー1をコネクタ本体5に向かって矢印Aの方向に押圧し、図5に示すようなコネクタ付きケーブルが製造される。   First, the structure of the plug connector PC connected to the end of the flat cable FC having the above configuration will be described. The plug connector PC includes a pressure contact cover 1 and a connector body 5. As shown in FIG. 4, the end portion of the flat cable FC configured as described above is attached to the pressure contact cover 1, and this pressure contact cover 1 is pressed toward the connector body 5 in the direction of arrow A, and FIG. A cable with connectors as shown is manufactured.

圧接カバー1は、絶縁材料製のケーブル保持部材2と、ケーブル保持部材2の外面を覆って取り付けられた金属製のシールドカバー3とから構成される。ケーブル保持部材2には、それぞれ上記フラットケーブルFCの同軸ケーブル20の配列ピッチと同一のピッチで並んだ、U字状に形成された複数のケーブル保持溝2a,2bが形成されている。ケーブル保持部材2には、さらに、圧接端子受容溝2cおよびグランド端子受容孔2dが図示のように形成されている。そして、フラットケーブルFCの各圧接部22aをこれらケーブル保持溝2a,2b内に受容させて、図4に示すように、フラットケーブルFCの先端部が圧接カバー1に取り付けられる。   The pressure contact cover 1 includes a cable holding member 2 made of an insulating material and a metal shield cover 3 attached so as to cover the outer surface of the cable holding member 2. The cable holding member 2 is formed with a plurality of cable holding grooves 2a and 2b formed in a U-shape and arranged at the same pitch as the arrangement pitch of the coaxial cables 20 of the flat cable FC. The cable holding member 2 is further formed with a press contact terminal receiving groove 2c and a ground terminal receiving hole 2d as shown. And each press-contact part 22a of flat cable FC is received in these cable holding grooves 2a and 2b, and the front-end | tip part of flat cable FC is attached to the press-contact cover 1, as shown in FIG.

コネクタ本体5は、絶縁材料製のコンタクト保持部材6と、このコンタクト保持部材6の下面を覆って一体に取り付けられた金属板からなるグランド板7と、コンタクト保持部材6によりインサートモールドされて保持された複数のコンタクト8とから構成される。コンタクト8はフラットケーブルFCの同軸ケーブル20の配列ピッチと同一のピッチで並んで配設されており、その後端が上方に直角に曲げられて圧接端子部8aが形成されている。圧接端子部8aには上方に開口し、同軸ケーブル20の芯線21の径より若干小さな幅の芯線受容溝8bが形成されている。グランド板7の後端も上方に直角に曲げられてグランド端子受容部7aが形成されており、ここに上方に開口し、同軸ケーブル20のシールド層23の径より若干小さな幅のシールド受容溝7bが形成されている。   The connector body 5 is insert-molded and held by a contact holding member 6 made of an insulating material, a ground plate 7 made of a metal plate that covers and integrally attaches the lower surface of the contact holding member 6, and the contact holding member 6. And a plurality of contacts 8. The contacts 8 are arranged side by side at the same pitch as the arrangement pitch of the coaxial cables 20 of the flat cable FC, and the rear ends thereof are bent upward at a right angle to form the press contact terminal portions 8a. A core wire receiving groove 8b is formed in the press contact terminal portion 8a. The rear end of the ground plate 7 is also bent upward at a right angle to form a ground terminal receiving portion 7a. The shield receiving groove 7b opens upward and has a width slightly smaller than the diameter of the shield layer 23 of the coaxial cable 20. Is formed.

上述したように、フラットケーブルFCの各圧接部22aをケーブル保持溝2a,2b内に受容させて圧接カバー1に取り付け、この圧接カバー1をコネクタ本体5に向かって矢印Aの方向に押圧すると、圧接端子部8aが圧接部22aの内周側絶縁被覆22を切り裂きながら圧接部22a内に食い込み、芯線21が芯線受容溝8b内に挿入されて芯線21が対応するコンタクト8と電気接続される。同時に、グランド端子受容部7aのシールド受容溝7b内に接地接続部23aが受容保持される。次に、図6の矢印Bで示すようにシールドカバー3を押し込んで、その先端部3aを接地接続部23a上面に当接させてこれを下方に押圧する。これにより、接地接続部23a、先端部3a、及び先端部3aの押圧を支持するシールド受容溝7bの全てが電気接続される。なお、このとき、圧接端子部8aの先端は圧接端子受容溝2c内に入り込み、グランド端子受容部7aの先端はグランド端子受容孔2d内に入り込む。   As described above, each press contact portion 22a of the flat cable FC is received in the cable holding grooves 2a and 2b and attached to the press contact cover 1, and when this press contact cover 1 is pressed toward the connector body 5 in the direction of the arrow A, The press contact terminal portion 8a bites into the press contact portion 22a while tearing the inner peripheral insulating coating 22 of the press contact portion 22a, and the core wire 21 is inserted into the core wire receiving groove 8b, and the core wire 21 is electrically connected to the corresponding contact 8. At the same time, the ground connection portion 23a is received and held in the shield receiving groove 7b of the ground terminal receiving portion 7a. Next, the shield cover 3 is pushed in as shown by an arrow B in FIG. 6, and the tip 3a is brought into contact with the upper surface of the ground connection 23a and pressed downward. As a result, the ground connection portion 23a, the tip portion 3a, and the shield receiving groove 7b that supports the pressing of the tip portion 3a are all electrically connected. At this time, the tip of the press contact terminal portion 8a enters the press contact terminal receiving groove 2c, and the tip of the ground terminal receive portion 7a enters the ground terminal receiving hole 2d.

実施例1の図3(B)では同軸ケーブル20外周側絶縁被覆24の上部面において接地接続部23aが露出する例を示したが、図7で示すように接地接続部23aが上面と下面でも露出するように構成にしてもよい。図7で示す構成の同軸ケーブル20の特徴としては、上面接地接続部23b及び下面設置接続部23cの2つの設置接続部を有することで、グランド板7とシールドカバー3の電機接続を別々に行うことが挙げられる。   In FIG. 3B of the first embodiment, an example in which the ground connection portion 23a is exposed on the upper surface of the outer peripheral insulating coating 24 of the coaxial cable 20 is shown. However, as shown in FIG. You may comprise so that it may expose. The coaxial cable 20 having the configuration shown in FIG. 7 has two installation connection portions, that is, an upper surface ground connection portion 23b and a lower surface installation connection portion 23c, so that the electric connection between the ground plate 7 and the shield cover 3 is performed separately. Can be mentioned.

このようなフラットケーブルFCの端部にコネクタが取り付けられて作られるコネクタ付きケーブルを図8で示している。コネクタ本体5については実施例1のコネクタ本体5と同一構成であるが、同軸ケーブル20の設置接続部23b,23cにおけるグランド板7及びシールドカバー3への接触方法に違いが見られる。図7で示す構成の同軸ケーブル20では、グランド端子受容部7aのシールド受容溝7b内に接地接続部23b,23cが受容保持されると、下面接地接続部23cがシールド受容溝7bに押圧接触され、これにより、シールド層23がグランド板7と電気接続される。そして、図8の矢印Bで示すようにシールドカバー3を押し込んで、その先端部3aを上面接地接続部23bに当接させてこれを下方に押圧する。このように、上部設置接続部23aと下面設置接続部23bの2面をグランド板7及びシールドカバー3の接続に別々に対応させることで、シールド受容溝7bとシールド層23との接触状態を安定させる。   FIG. 8 shows a cable with a connector produced by attaching a connector to the end of such a flat cable FC. The connector main body 5 has the same configuration as that of the connector main body 5 of the first embodiment, but there is a difference in the method of contacting the ground plate 7 and the shield cover 3 at the installation connection portions 23b and 23c of the coaxial cable 20. In the coaxial cable 20 having the configuration shown in FIG. 7, when the ground connection portions 23b and 23c are received and held in the shield receiving groove 7b of the ground terminal receiving portion 7a, the lower surface ground connecting portion 23c is pressed into contact with the shield receiving groove 7b. Thereby, the shield layer 23 is electrically connected to the ground plate 7. Then, as shown by the arrow B in FIG. 8, the shield cover 3 is pushed in, the tip 3a is brought into contact with the upper surface ground connection 23b, and this is pressed downward. Thus, the contact state between the shield receiving groove 7b and the shield layer 23 is stabilized by separately making the two surfaces of the upper installation connection portion 23a and the lower installation connection portion 23b correspond to the connection of the ground plate 7 and the shield cover 3. Let

本発明のフラットケーブルを加工形成する前の状態のフラットケーブルを示す平面図およびこのフラットケーブルを構成する同軸ケーブルの構造を示す斜視図である。It is the top view which shows the flat cable of the state before processing and forming the flat cable of this invention, and the perspective view which shows the structure of the coaxial cable which comprises this flat cable. 本発明に係るフラットケーブルを加工形成する途中段階での端部構造を示す平面図である。It is a top view which shows the edge part structure in the middle stage which processes and forms the flat cable which concerns on this invention. 本発明に係るフラットケーブルの端部構造を示す平面図および斜視図である。It is the top view and perspective view which show the edge part structure of the flat cable which concerns on this invention. 本発明に係るフラットケーブルが接続されるコネクタを分解して示す斜視図である。It is a perspective view which decomposes | disassembles and shows the connector to which the flat cable which concerns on this invention is connected. 本発明に係るフラットケーブルの端部にコネクタを接続して構成されるコネクタ付きケーブルの製造途中段階における状態を示す断面図である。It is sectional drawing which shows the state in the middle of manufacture of the cable with a connector comprised by connecting a connector to the edge part of the flat cable which concerns on this invention. 本発明に係るフラットケーブルの端部にコネクタを接続して構成されるコネクタ付きケーブルの断面図である。It is sectional drawing of the cable with a connector comprised by connecting a connector to the edge part of the flat cable which concerns on this invention. 上記フラットケーブルとは別構造のフラットケーブルの端部構造を示す斜視図である。It is a perspective view which shows the edge part structure of the flat cable of another structure from the said flat cable. 上記フラットケーブルの端部にコネクタを接続して構成されるコネクタ付きケーブルの断面図である。It is sectional drawing of the cable with a connector comprised by connecting a connector to the edge part of the said flat cable.

符号の説明Explanation of symbols

1 圧接カバー
5 コネクタ本体
7 グランド板
7a グランド端子受容部
8 コンタクト
8a 圧接端子部
20 同軸ケーブル
21 芯線
22 内周側絶縁被覆
22a 圧接部
23 シールド層
23a 接地接続部
23b 上面接地接続部
23c 下面接地接続部
24 外周側絶縁被覆
27 ホールディングテープ
DESCRIPTION OF SYMBOLS 1 Pressure contact cover 5 Connector main body 7 Ground board 7a Ground terminal receiving part 8 Contact 8a Pressure contact terminal part 20 Coaxial cable 21 Core wire 22 Inner peripheral side insulation coating 22a Pressure contact part 23 Shield layer 23a Ground connection part 23b Upper surface ground connection part 23c Lower surface ground connection Part 24 Outer peripheral side insulation coating 27 Holding tape

Claims (3)

複数の同軸ケーブルを同一平面状に平行に並べて保持してなるフラットケーブルであって、
前記同軸ケーブルが、直線状に延びる芯線を覆って設けられた内周側絶縁被覆、前記内周側絶縁被覆の外周を覆って設けられたシールド層、及び前記シールド層の外周を覆って設けられた外周側絶縁被覆から構成されるフラットケーブルにおいて、
前記同軸ケーブルの端部において、先端から第1の所定長さの範囲において前期外周側絶縁被覆及び前記シールド層が剥がされて前記内周絶縁被覆が露出して圧接部が形成されており、前記圧接部の内端から第2の所定長さの範囲において先端側に所定幅の前記外周側絶縁被覆を残して前期外周側絶縁被覆が部分的に剥がされて接地接続部が形成されていることを特徴とするフラットケーブル。
A flat cable formed by holding a plurality of coaxial cables arranged in parallel on the same plane,
The coaxial cable is provided so as to cover an inner peripheral side insulation coating provided to cover a linearly extending core wire, a shield layer provided to cover an outer periphery of the inner peripheral side insulation coating, and an outer periphery of the shield layer. In the flat cable composed of the outer peripheral side insulation coating,
In the end portion of the coaxial cable, the outer peripheral insulating coating and the shield layer are peeled off in the first predetermined length range from the tip, and the inner insulating coating is exposed to form a pressure contact portion, In the range of the second predetermined length from the inner end of the press-contact portion, the outer peripheral insulating coating is partially peeled off to leave the outer peripheral insulating coating having a predetermined width on the tip side to form a ground connection portion. A flat cable characterized by
前記複数の同軸ケーブルがホールディングテープにより同一平面状に平行に並べて保持されてフラットケーブルが形成され、
前記同軸ケーブルの端部が前記ホールディングテープの端部より外方に突出しており、このように突出する前記同軸ケーブルの端部において前記圧接部及び前記接地接続部が形成されていることを特徴とする請求項1に記載のフラットケーブル。
The plurality of coaxial cables are held in parallel in the same plane by a holding tape to form a flat cable,
An end portion of the coaxial cable protrudes outward from an end portion of the holding tape, and the press contact portion and the ground connection portion are formed at the end portion of the coaxial cable protruding in this manner. The flat cable according to claim 1.
前記同軸ケーブル先端から前記第1の所定長さの位置において、YAGレーザにより前記外周側絶縁被覆及び前記シールド層を切断し、前記第1の所定長さの範囲に位置する前記外周側絶縁被覆及び前記シールド層を引き抜いて前記内周側絶縁被覆を露出させて前記圧接部が形成され、
前記圧接部の内端から第2の所定の長さにおいて、先端側の所定幅の外周側絶縁被覆残して前記シールド層が露出する様にCOレーザを照射し、前記外周側絶縁被覆を一部溶融除去して前記接地接続部が形成されることを特徴とする請求項1に記載のフラットケーブル。
The outer peripheral insulating coating and the shield layer are cut with a YAG laser at a position of the first predetermined length from the end of the coaxial cable, and the outer peripheral insulating coating and the outer peripheral insulating coating positioned in the first predetermined length range The pressure contact portion is formed by pulling out the shield layer to expose the inner peripheral insulating coating,
A CO 2 laser is irradiated so that the shield layer is exposed while leaving the outer peripheral insulating coating of a predetermined width on the tip side at a second predetermined length from the inner end of the press-contact portion, and the outer peripheral insulating coating is applied. The flat cable according to claim 1, wherein the ground connection portion is formed by melting and removing the portion.
JP2004262682A 2004-09-09 2004-09-09 Flat cable Expired - Lifetime JP4133980B2 (en)

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KR20200003718A (en) * 2018-07-02 2020-01-10 니혼 고꾸 덴시 고교 가부시끼가이샤 Cable harness
US10643765B2 (en) 2018-07-02 2020-05-05 Japan Aviation Electronics Industry, Limited Cable harness
KR102364001B1 (en) * 2018-07-02 2022-02-16 니혼 고꾸 덴시 고교 가부시끼가이샤 Cable harness
JP7109280B2 (en) 2018-07-02 2022-07-29 日本航空電子工業株式会社 cable harness

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