JP4730892B2 - Multilayer flexible flat cable and manufacturing method thereof - Google Patents
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本発明は、フレキシブルフラットケーブルおよびその製造方法に関し、更に詳しくは導体が多層構造を有するフレキシブルフラットケーブルおよびその製造方法に関するものである。 The present invention relates to a flexible flat cable and a manufacturing method thereof, and more particularly to a flexible flat cable having a multi-layered conductor and a manufacturing method thereof.
フレキシブルフラットケーブル（以下、フラットケーブルともいう）は配線材の省スペース性と簡便な接続により、電子機器類のプリント基盤、内部配線材、自動車の内部配線材として多用されている。従来のフレキシブルフラットケーブルは、２枚の絶縁フィルム間に複数本の導体を該導体の両端部を露出させて平行に配列させた構造をしており、このフラットケーブルと挿入型コネクターを組み合わせた配線方式が普及している。従来のフラットケーブルの一例について、図４を用いて説明する。
片面に熱融着性接着層（図示せず）を有する２枚の絶縁フィルム（１、１）を、接着層面を互いに内側にして、この間に複数本の平角導体（２）を所定間隔に並列配列し、両端部の導体（２）を所定長露出させて、接続端末部（端末導体露出部）（ｔ）を設けて加熱融着させ、好ましくは該接続端末部（ｔ）に補強テープ（ｈ）を貼り付けフラットケーブル（１０’）としている。この従来のフラットケーブルについては下記特許文献１に記載されている。
Two insulating films (1, 1) having a heat-fusible adhesive layer (not shown) on one side, with the adhesive layer surfaces inside each other, and a plurality of flat conductors (2) arranged in parallel at a predetermined interval therebetween. Arranged, exposing the conductors (2) at both ends for a predetermined length, providing a connection terminal portion (terminal conductor exposed portion) (t) and heat-sealing, preferably reinforcing tape ( h) is attached to form a flat cable (10 '). This conventional flat cable is described in Patent Document 1 below.
近年電子機器は更なる高集積化、小型化が進み、フレキシブルフラットケーブルにおいても更なる高集積化の要求が高まってきている。しかしながら従来のフレキシブルフラットケーブルでは導体の集積度を上げる手段として、導体幅を小さくし、また狭ピッチにして導体を密に並列させる方法が取られている。しかしながら小導体幅、狭ピッチでは、隣接する導体間の距離が小さいため、特にフラットケーブルが高温下にさらされた場合、導体より発生したウィスカーにより隣接する導体同士で短絡する危険があるという問題点があった。また導体幅および整列ピッチ、コネクターのピッチ等に高い精度が要求され、さらなる狭ピッチ化には限界があるという問題点があった。なお、導体が多層構造を持ったフラットケーブルの製造方法として、異なる層の導体間にフィルムを挟む形でラミネート成形する方法も考えられるが、ケーブル端末を一括でカットする通常の端末カット方法であると、異なる層の導体を隔てるものは中間の絶縁フィルムのみであり、またカット時の導体のバリなどにより、異なる層の導体間の絶縁信頼性を得る事は難しいという問題点があった。
本発明は、上記従来技術が有する各種問題点を解決するためになされたものであり、省スペース性と簡便な接続性という従来のフレキシブルフラットケーブルの利点を失うことなく、更なる高集積化を可能とする多層フレキシブルフラットケーブルおよびその製造方法を提供することを目的とする。
In recent years, electronic devices have been further integrated and miniaturized, and the demand for further integration of flexible flat cables has increased. However, in the conventional flexible flat cable, as a means for increasing the degree of conductor integration, a method is adopted in which the conductor width is reduced and the conductors are closely arranged in parallel at a narrow pitch. However, with a small conductor width and narrow pitch, the distance between adjacent conductors is small, so there is a risk of short-circuiting between adjacent conductors due to whiskers generated from the conductor, especially when flat cables are exposed to high temperatures. was there. Further, high accuracy is required for the conductor width, the alignment pitch, the connector pitch, and the like, and there is a problem that there is a limit to further narrowing the pitch. As a method of manufacturing a flat cable having a multi-layered conductor, a method of laminating a film in which a film is sandwiched between conductors of different layers is also conceivable, but this is a normal terminal cutting method for cutting cable terminals in a lump. However, only the intermediate insulating film separates the conductors of different layers, and it is difficult to obtain insulation reliability between conductors of different layers due to the burrs of the conductors at the time of cutting.
The present invention has been made in order to solve the various problems of the above-described conventional technology, and achieves further high integration without losing the advantages of the conventional flexible flat cable such as space saving and simple connectivity. An object of the present invention is to provide a multilayer flexible flat cable and a method for manufacturing the same.
第１の観点として本発明は、片面に熱融着性接着層を有し、両端末の導体を所定長露出させて接続端末部（端末導体露出部）を設ける長さ分のみ片方のフィルム長さを短くした２枚の絶縁フィルムを、接着層面を互いに内側にし、この間に複数本の平角導体を所定間隔に並列配置して加熱融着したフレキシブルフラットケーブル体を基本構成単位とし、この基本構成単位のフラットケーブル体（以下、基本構成フラットケーブル体ともいう）の複数枚を多層に重ね、貼り合わせて成る多層フレキシブルフラットケーブルであって、前記フラットケーブル体の複数枚は、それぞれを多層に重ね、貼り合わせた際に、各層のフラットケーブル体の接続端末部間に端末部間スペースができる長さに調製されており、またフラットケーブル体の端末導体露出面側の絶縁フィルム面と、次層となるフラットケーブル体の端末導体露出面側からみて背面側の絶縁フィルム面と、が端末部間スペースを設けて重ね、貼り合わされて成ることを特徴とする多層フレキシブルフラットケーブル（以下、多層フラットケーブルともいう）にある。
前記多層フラットケーブルを構成する基本構成フラットケーブル体は、それぞれのピッチ、導体の種類、幅、絶縁フィルムの種類、芯数など、フラットケーブル体を成す構成を必要に応じて個別に選択してもよい。また、上記基本構成フラットケーブル体を貼り合わせる手段は、両面テープ、接着剤などが用いられるが、特に限定されるものではない。また、基本構成フラットケーブル体の接続端末部の補強テープの有無によって限定されるものではない。また例えば図３（ｂ）に示す通り、多層の導体が横断面から見て直列している事に限定されるものではない。
上記第１観点の多層フラットケーブルでは、導体が単層のフラットケーブル体を基本構成単位とし、ケーブル長さ、導体数等が調製された基本構成フラットケーブル体の複数枚が、多層、例えば２層、３層に端末部間スペースを設けて重ね、貼り合わされた構造をしているため個別層の導体間の接触を防止でき、各層の導体間の絶縁信頼性を確保出来る。また、必要数の基本構成フラットケーブル体を重ね、貼り合わせる事によって、任意の多層構造をとる事ができ、必要な導体芯数を従来と同じ幅スペースに配列させる事が出来る。また導体が複数層であってもコネクターとの勘合が可能である構造を持った多層フラットケーブルとなる。なお、前記端末部間スペースは、コネクターとの関係で、例えば５０μｍ〜２ｍｍの幅である。
As a first aspect, the present invention has a heat-sealable adhesive layer on one side, and exposes the conductors of both ends for a predetermined length to provide a connection terminal part (terminal conductor exposed part), and the length of one film This basic structure consists of a flexible flat cable body with two insulating films with a reduced length and adhesive layers facing each other inside, and a plurality of flat conductors arranged in parallel between them at a predetermined interval and heat-sealed. A multi-layer flexible flat cable in which a plurality of unit flat cable bodies (hereinafter also referred to as basic configuration flat cable bodies) are stacked and bonded together, and each of the flat cable bodies is stacked in multiple layers. , The length of the flat cable body is adjusted so that there is a space between the terminal portions between the connecting terminal portions of the flat cable body of each layer. The insulating film surface on the exposed surface side and the insulating film surface on the back side as viewed from the terminal conductor exposed surface side of the flat cable body that is the next layer are overlapped and bonded together with a space between the terminal portions. A multilayer flexible flat cable (hereinafter also referred to as a multilayer flat cable).
The basic configuration flat cable body constituting the multilayer flat cable may be individually selected as necessary for the configuration of the flat cable body, such as the pitch, the type of conductor, the width, the type of insulating film, the number of cores, etc. Good. The means for bonding the basic configuration flat cable body is not particularly limited, although a double-sided tape, an adhesive, or the like is used. Moreover, it is not limited by the presence or absence of the reinforcement tape of the connection terminal part of a basic structure flat cable body. Further, for example, as shown in FIG. 3B, the multilayer conductors are not limited to being in series when viewed from the cross section.
In the multilayer flat cable according to the first aspect, a flat cable body having a single layer of conductor is a basic structural unit, and a plurality of basic configuration flat cable bodies having a adjusted cable length, number of conductors, etc. are multilayered, for example, two layers Since the space between the terminal portions is provided in three layers and stacked and bonded, contact between the conductors of the individual layers can be prevented, and insulation reliability between the conductors of each layer can be ensured. In addition, a necessary number of basic configuration flat cable bodies can be stacked and bonded together to form an arbitrary multilayer structure, and the required number of conductor cores can be arranged in the same width space as in the prior art. In addition, a multi-layer flat cable having a structure that can be fitted with a connector even if the conductor has a plurality of layers. In addition, the said space between terminal parts is a width | variety of 50 micrometers-2 mm, for example in relation to a connector.
第２の観点として本発明は片面に熱融着性接着層を有し、両端末の導体を所定長露出させて接続端末部（端末導体露出部）を設ける長さ分のみ片方のフィルム長さを短くした２枚の絶縁フィルムを、接着層面を互いに内側にし、この間に複数本の平角導体を所定間隔に並列配置して加熱融着したフレキシブルフラットケーブル体を基本構成単位とし、この基本構成単位のフラットケーブル体の複数枚を多層に重ね、貼り合わせて成る多層フレキシブルフラットケーブルであって、前記フラットケーブル体の２枚が、同一の長さ、若しくは長さ違いに調製されており、また２枚のフラットケーブル体の端末導体露出面側からみて背面側の絶縁フィルム面同士が、両接続端末部の先端部と先端部との間に端末部間スペースを設けて重ね、貼り合わされて成ることを特徴とする多層フレキシブルフラットケーブルにある。
上記第２観点の多層フラットケーブルでは、導体が単層のフレキシブルフラットケーブル体を基本構成単位とし、ケーブル長さが、同一の長さ、若しくは長さ違いに調製され、また導体数等が調製された基本構成フラットケーブル体の２枚が、端末部間スペースを設けて２層に重ね、貼り合わされた構造をしており、それぞれの接続端末部は任意の端末部間スペースを設けているため個別層の導体間の接触を防止でき、各層の導体間の絶縁信頼性を確保出来る。また、基本構成ケーブル体を２層に重ねる事によって、必要な導体芯数を従来と同じ幅スペースに配列させる事が出来る。また導体が２層であってもコネクターとの勘合が可能である構造を持った多層フレキシブルフラットケーブルとなる。
As a second aspect, the present invention has a heat-fusible adhesive layer on one side, and exposes the conductors of both ends for a predetermined length to provide a connection terminal part (terminal conductor exposed part), and the length of one film. The basic structural unit is a flexible flat cable body in which two insulating films with a short length are bonded to each other with the adhesive layer surfaces inside, and a plurality of flat conductors are arranged in parallel at a predetermined interval between them and heat-sealed. A multilayer flexible flat cable in which a plurality of flat cable bodies are laminated and bonded together in multiple layers, and the two flat cable bodies are prepared to have the same length or different lengths. The insulation film surfaces on the back side as viewed from the end conductor exposed surface side of the flat cable body are overlapped and bonded with a space between the end portions between the end portions of both connection end portions. In multi-layer flexible flat cable, characterized by comprising been.
In the multilayer flat cable of the second aspect, the flexible flat cable body having a single layer of conductor is a basic structural unit, the cable length is adjusted to the same length or different lengths, and the number of conductors is adjusted. The two basic cable flat cable bodies have a structure in which two inter-terminal spaces are provided, stacked in two layers, and bonded to each other, and each connecting terminal portion is provided with an optional inter-terminal space. Contact between the conductors of the layers can be prevented, and insulation reliability between the conductors of each layer can be ensured. Further, by superposing the basic configuration cable bodies in two layers, the necessary number of conductor cores can be arranged in the same width space as in the prior art. In addition, a multilayer flexible flat cable having a structure that can be fitted with a connector even if the conductor has two layers.
第３の観点として本発明は、上記第１観点の多層フレキシブルフラットケーブルの製造方法であって、片面に熱融着性接着層を有し、両端部の導体を所定長露出させて接続端末部（端末導体露出部）を設ける長さ分のみ片方のフィルム長さを短くした２枚の絶縁フィルムを、接着層面を互いに内側にし、この間に複数本の平角導体を所定間隔に並列配置して加熱融着したフレキシブルフラットケーブル体を多層フレキシブルフラットケーブルの基本構成単位として製造する場合、該フラットケーブル体の複数枚を多層に重ね、貼り合わせた際に、各層のフラットケーブル体の接続端末部間に端末部間スペースができる長さに調製して、多層分用のフラットケーブル体を製造し、次いでこれらフラットケーブル体を、順次、フラットケーブル体の導体露出面側の絶縁フィルム面と、次層となるフラットケーブル体の端末導体露出面側からみて背面側の絶縁フィルム面とを、端末部間スペースを設けて多層に重ね、貼り合わせて多層フレキシブルフラットケーブルを製造することを特徴とする多層フレキシブルフラットケーブルの製造方法にある。
上記第３観点の製造方法では、上記第１観点の多層フレキシブルフラットケーブルを効率良く製造することができる。
According to a third aspect of the present invention, there is provided a method for manufacturing a multilayer flexible flat cable according to the first aspect, comprising a heat-fusible adhesive layer on one side, exposing a conductor at both ends for a predetermined length, and a connection terminal portion. Heat the two insulating films whose one film length is shortened by the length to provide the (terminal conductor exposed portion) with the adhesive layer surfaces inside each other and with a plurality of flat conductors arranged in parallel at a predetermined interval between them. When manufacturing a fused flexible flat cable body as a basic structural unit of a multilayer flexible flat cable, when a plurality of flat cable bodies are stacked in layers and bonded together, the connection between the flat cable body connection terminals of each layer Prepare the length to make the space between the terminal parts, manufacture the flat cable body for the multi-layer portion, then, in turn, these flat cable body, flat cable body The insulation film surface on the conductor exposed surface side and the insulation film surface on the back side as viewed from the terminal conductor exposed surface side of the flat cable body that will be the next layer are stacked in multiple layers with a space between the terminal portions, and bonded together to make the multilayer flexible The present invention resides in a method for manufacturing a multilayer flexible flat cable, characterized by manufacturing a flat cable.
In the manufacturing method of the said 3rd viewpoint, the multilayer flexible flat cable of the said 1st viewpoint can be manufactured efficiently.
第４の観点として本発明は、上記第２観点の多層フレキシブルフラットケーブルの製造方法であって、片面に熱融着性接着層を有し、両端部の導体を所定長露出させて接続端末部（端末導体露出部）を設ける長さ分のみ片方のフィルム長さを短くした２枚の絶縁フィルムを、接着層面を互いに内側にし、この間に複数本の平角導体を所定間隔に並列配置して加熱融着したフレキシブルフラットケーブル体を多層フレキシブルフラットケーブルの基本構成単位として製造する場合、前記フラットケーブル体の長さを、同一の長さ、若しくは長さ違いに調製して２層分用のフラットケーブル体を製造し、次いでこれらフラットケーブル体を、それぞれの端末導体露出面側からみて背面側の絶縁フィルム面同士を、両接続端末部の先端部と先端部との間に端末部間スペースを設けて２層に重ね、貼り合わせて多層フレキシブルフラットケーブルを製造することを特徴とする多層フレキシブルフラットケーブルの製造方法にある。
上記第４観点の製造方法では、上記第２観点の多層フレキシブルフラットケーブルを効率良く製造することができる。
According to a fourth aspect of the present invention, there is provided a method for producing a multilayer flexible flat cable according to the second aspect, comprising a heat-fusible adhesive layer on one side and exposing the conductors at both ends for a predetermined length to connect terminal portions. Heat the two insulating films whose one film length is shortened by the length to provide the (terminal conductor exposed portion) with the adhesive layer surfaces inside each other and with a plurality of flat conductors arranged in parallel at a predetermined interval between them. When manufacturing a fused flexible flat cable body as a basic structural unit of a multilayer flexible flat cable, the flat cable body is prepared to have the same length or different length, and the flat cable for two layers is prepared. Body, and then, these flat cable bodies, when viewed from the terminal conductor exposed surface side, the insulating film surfaces on the back side are connected to each other with the tip and tip portions of both connection terminal portions. Superposed into two layers provided with a space between the terminal portions while, in a method for manufacturing a multilayer flexible flat cable, characterized in that to produce a multi-layer flexible flat cable by bonding.
In the manufacturing method according to the fourth aspect, the multilayer flexible flat cable according to the second aspect can be efficiently manufactured.
本発明の多層フラットケーブルは、導体が単層のフラットケーブル体を基本構成単位として、多層、例えば２層、３層、４層と基本構成フラットケーブル体を任意の枚数重ね合わせ、貼り合わせた構造をしており、また各層の接続端末部間には任意の端末部間スペースを設けるため各層の導体間の絶縁信頼性を確保出来る。また、２層、３層、４層と、必要数の基本構成フラットケーブル体を重ねる事によって、任意の多層構造をとる事ができ、また必要な芯数を従来と同じ幅のスペースに配列させる事が出来、また同一幅において通常のフラットケーブルに比べ導体を高集積化することが出来る。更に端末部間スペースを任意に決定する事が出来るため、層の異なる導体間の絶縁信頼性を得ることができる。また本発明の製造方法によれば、本発明の多層フラットケーブルを効率良く製造することが出来る。従って、本発明は産業に寄与する効果が極めて大である。 The multi-layer flat cable of the present invention has a structure in which a flat cable body having a single layer of conductor is a basic structural unit, and any number of multi-layers, for example, two layers, three layers, four layers, and basic configuration flat cable bodies are stacked and bonded together. In addition, since an optional inter-terminal space is provided between the connection terminal portions of each layer, insulation reliability between the conductors of each layer can be ensured. Also, by stacking the required number of basic configuration flat cable bodies with 2 layers, 3 layers, and 4 layers, an arbitrary multilayer structure can be taken, and the necessary number of cores is arranged in a space having the same width as the conventional one. In addition, the conductor can be highly integrated compared to a normal flat cable at the same width. Furthermore, since the space between terminal portions can be determined arbitrarily, insulation reliability between conductors of different layers can be obtained. Moreover, according to the manufacturing method of this invention, the multilayer flat cable of this invention can be manufactured efficiently. Therefore, the present invention has a great effect of contributing to the industry.
以下、本発明の内容を、図に示す実施の形態により更に詳細に説明する。なお、これにより本発明が限定されるものではない。
図１は、本発明の多層フラットケーブルに用いる基本構成フラットケーブル体を示す斜視図である。図２は、本発明の多層フラットケーブルの第１実施形態（２層フラットケーブル）を示す略図であり、同図（a）は平面図、また同図（b）は同図（a）のｘ−ｘ部の断面図である。また図３は、本発明の多層フラットケーブルの第２実施形態（３層フラットケーブル）を示す略図であり、同図（a）は平面図、また同図（b）は同図（a）のｙ−ｙ部の断面図である。
これらの図において、１，１’，１ａ，１ｂ，１ｃ，１ｄ，１ｅ，１ｆは絶縁フィルム、２，２ａ，２ｂ，２ｃは導体、１０は基本構成フラットケーブル体、１０ａは１層目用のフラットケーブル体、１０ｂは２層目用のフラットケーブル体、１０ｃは３層目用のフラットケーブル体、２０は多層フラットケーブル（２層フラットケーブル）、３０は多層フラットケーブル（３層フラットケーブル）、ｓ１，ｓ２は端末部間スペース、ｔ，ｔ１，ｔ２，ｔ３は接続端末部（端末導体露出部）である。
Hereinafter, the contents of the present invention will be described in more detail with reference to embodiments shown in the drawings. Note that the present invention is not limited thereby.
FIG. 1 is a perspective view showing a basic configuration flat cable body used in a multilayer flat cable of the present invention. FIG. 2 is a schematic diagram showing a first embodiment (two-layer flat cable) of the multilayer flat cable of the present invention, where FIG. 2 (a) is a plan view and FIG. 2 (b) is an x in FIG. 2 (a). It is sectional drawing of -x part. FIG. 3 is a schematic view showing a second embodiment (three-layer flat cable) of the multilayer flat cable of the present invention. FIG. 3 (a) is a plan view, and FIG. 3 (b) is a diagram of FIG. It is sectional drawing of a yy part.
In these figures, 1, 1 ′, 1a, 1b, 1c, 1d, 1e, and 1f are insulating films, 2, 2a, 2b, and 2c are conductors, 10 is a basic configuration flat cable body, and 10a is for the first layer. Flat cable body, 10b is a flat cable body for the second layer, 10c is a flat cable body for the third layer, 20 is a multilayer flat cable (two-layer flat cable), 30 is a multilayer flat cable (three-layer flat cable), s1 and s2 are spaces between terminal portions, and t, t1, t2, and t3 are connection terminal portions (terminal conductor exposed portions).
本発明の多層フラットケーブルおよびその製造方法の第１実施形態について図１、図２を用いて説明する。
―基本構成フラットケーブル体の製造―
本発明の多層フラットケーブルを構成する基本構成フラットケーブル体の製造について図１を用いて説明する。
片面に熱融着性接着層（図示せず）を有し、長さが導体の長さと同じ絶縁フィルム（１）と、該フィルム（１）よりも両端末導体露出部（ｔ，ｔ）の長さ分短くした絶縁フィルム（１’）の2枚の絶縁フィルム（１，１’）を、接着層面を互いに内側にして、この間に導体（２）を所定のピッチで３本配列し、両端部には接続端末部（端末導体露出部）（ｔ，ｔ）を設け、加熱融着させてフラットケーブル体（１０）を製造した。なお、前記両端末導体露出部（ｔ，ｔ）は両端対称とした。
前記絶縁フィルム（１，１’）としては、例えばポリエステルラミネートフィルムが用いられる。また前記導体（２）としては、例えば銅平角銅線、錫−鉛合金めっき平角銅線、錫めっき平角銅線等が用いられる。なお、図１では導体の本数を３本としているが、特に限定されるものではなく、例えば２〜５０本が用いられる。
A first embodiment of a multilayer flat cable and a manufacturing method thereof according to the present invention will be described with reference to FIGS.
―Manufacturing of basic configuration flat cable body―
The manufacture of the basic configuration flat cable body constituting the multilayer flat cable of the present invention will be described with reference to FIG.
An insulating film (1) having a heat-fusible adhesive layer (not shown) on one side, the length of which is the same as the length of the conductor, and both end conductor exposed portions (t, t) from the film (1) Two insulating films (1, 1 ′) of an insulating film (1 ′) shortened by a length are arranged with three conductors (2) arranged at a predetermined pitch between them with the adhesive layer surfaces inside each other. A connection terminal part (terminal conductor exposed part) (t, t) was provided in the part, and the flat cable body (10) was manufactured by heat fusion. The both end conductor exposed portions (t, t) are symmetrical on both ends.
As the insulating film (1, 1 ′), for example, a polyester laminate film is used. Moreover, as said conductor (2), a copper flat copper wire, a tin-lead alloy plating flat copper wire, a tin plating flat copper wire etc. are used, for example. In FIG. 1, the number of conductors is three. However, the number of conductors is not particularly limited. For example, 2 to 50 conductors are used.
―多層（２層）フラットケーブルの製造―
本発明の多層（２層）フラットケーブルの製造について図２（ａ）、（ｂ）を用いて説明する。なお各層のフラットケーブル体は上記した基本構成フラットケーブル体（１０）に準じた構造としている。また１層用および２層目用のフラットケーブル体の長さは、多層に重ね、貼り合わせた際に、各層のケーブル体の接続端末部間に端末部間スペースができる長さに調製している。
１層目用のフラットケーブル体として、片面に熱融着性接着層（図示せず）を有し、長さ違いの２枚の絶縁フィルム（１ａ）（幅１０ｍｍ×長さ１５０ｍｍ×厚さ０．０５ｍｍ）、（１ｂ）（幅１０ｍｍ×長さ１４０ｍｍ×厚さ０．０５ｍｍ）を、接着層面を互いに内側にして、この間に導体（２ａ）として、厚さ０．０５ｍｍ×幅０．７ｍｍの錫めっき平角銅線をピッチ１ｍｍで５本配列し、両端部には導体端末露出部（ｔ１）を設けて加熱融着し、ケーブル全長が１５０ｍｍ、導体端末露出部長が各５ｍｍ、ケーブル幅が１０ｍｍのフラットケーブル体（１０ａ）を製造した。
また２層目用のフラットケーブル体として、片面に熱融着性接着層（図示せず）を有し、長さ違いの２枚の絶縁フィルム（１ｃ）（幅１０ｍｍ×長さ１３８ｍｍ×厚さ０．０５ｍｍ）、（１ｄ）（幅１０ｍｍ×長さ１２８ｍｍ×厚さ０．０５ｍｍ）を、接着層面を互いに内側にして、この間に導体（２ｂ）として、厚さ０．０５ｍｍ×幅０．７ｍｍの錫めっき平角銅線をピッチ２ｍｍで２本配列し、両端部には導体端末露出部（ｔ２）を設けて加熱融着し、ケーブル全長が１３８ｍｍ、導体端末露出部長が各５ｍｍ、ケーブル幅が１０ｍｍのフラットケーブル体（１０ｂ）を製造した。前記２層目用フラットケーブル体（１０ｂ）の長さは、１層目用フラットケーブル体長さ−２×（接続端末部長さ＋端末部間スペース長さ）である。
そして、前記１層目用フラットケーブル体（１０ａ）と２層目用フラットケーブル体（１０ｂ）のそれぞれの端末導体露出部（ｔ１）、（ｔ２）の面を同一面とし、端末部間スペース（ｓ１）を設けるため、フラットケーブル体（１０ａ）の端末導体露出部（ｔ１）より長手方向に、１．０ｍｍ中央寄りにフラットケーブル体（１０ｂ）を重ね合わせ、両面テープにて貼り合わせて多層（２層）フラットケーブル（２０）を製造した。
-Manufacture of multi-layer (two-layer) flat cables-
The production of the multilayer (two-layer) flat cable of the present invention will be described with reference to FIGS. In addition, the flat cable body of each layer is made into the structure according to an above-described basic composition flat cable body (10). Also, the length of the flat cable body for the first layer and the second layer is adjusted so that there is a space between the terminal portions between the connection terminal portions of the cable bodies of each layer when the layers are stacked and bonded together. Yes.
As a flat cable body for the first layer, two insulating films (1a) (width 10 mm × length 150 mm × thickness 0) having a heat-bonding adhesive layer (not shown) on one side and having different lengths are used. .05 mm), (1b) (width 10 mm × length 140 mm × thickness 0.05 mm), with the adhesive layer surfaces facing each other, and a conductor (2a) between them, thickness 0.05 mm × width 0.7 mm Five tin-plated rectangular copper wires are arranged at a pitch of 1 mm, conductor end exposed portions (t1) are provided at both ends and heat-sealed, the total length of the cable is 150 mm, the length of the exposed end of the conductor is 5 mm, and the cable width is 10 mm. A flat cable body (10a) was manufactured.
Also, as a flat cable body for the second layer, there are two insulating films (1c) (width 10 mm × length 138 mm × thickness) having a heat fusible adhesive layer (not shown) on one side. 0.05 mm), (1d) (width 10 mm × length 128 mm × thickness 0.05 mm), with the adhesive layer surfaces facing each other, and a conductor (2b) between them, thickness 0.05 mm × width 0.7 mm The two tin-plated rectangular copper wires were arranged at a pitch of 2 mm, and conductor end exposed portions (t2) were provided at both ends and heat-sealed. The total length of the cable was 138 mm, the length of the exposed conductor end portion was 5 mm, and the cable width was A 10 mm flat cable body (10b) was produced. The length of the second-layer flat cable body (10b) is the first-layer flat cable body length−2 × (connection terminal portion length + terminal portion space length).
The surfaces of the terminal conductor exposed portions (t1) and (t2) of the first-layer flat cable body (10a) and the second-layer flat cable body (10b) are the same surface, and the space between the terminal portions ( In order to provide s1), the flat cable body (10b) is overlapped in the longitudinal direction from the end conductor exposed portion (t1) of the flat cable body (10a) toward the center of 1.0 mm, and laminated with a double-sided tape. A two-layer) flat cable (20) was produced.
本発明の多層フラットケーブルおよびその製造方法の第２実施形態について図３（ａ）、（ｂ）を用いて説明する。なお各層のフラットケーブル体は上記した基本構成フラットケーブル体（１０）に準じた構造としている。また１層目用、２層目用および３層目用のフラットケーブル体の長さは、多層に重ね、貼り合わせた際に、各層のケーブル体の接続端末部間に端末部間スペースができる長さに調製している。
―多層（３層）フラットケーブルの製造―
１層目用のフラットケーブル体として、上記実施例１と同じフラットケーブル体（１０ａ）を用いた。
また２層目用のフラットケーブル体として、片面に熱融着性接着層（図示せず）を有し、長さ違いの２枚の絶縁フィルム（１ｃ）（幅１０ｍｍ×長さ１３８ｍｍ×厚さ０．０５ｍｍ）、（１ｄ）（幅１０ｍｍ×長さ１２８ｍｍ×厚さ０．０５ｍｍ）を、接着層面を互いに内側にして、この間に導体（２ｂ）として、厚さ０．０５ｍｍ×幅０．７ｍｍの錫めっき平角銅線をピッチ１ｍｍで３本配列し、両端部には端末導体露出部（ｔ２）を設けて加熱融着し、ケーブル全長が１３８ｍｍ、端末導体露出部長が各５ｍｍ、ケーブル幅が１０ｍｍのフラットケーブル体（１０ｂ）を製造した。前記２層目用フラットケーブル体（１０ｂ）の長さは、１層目用フラットケーブル体長さ−２×（接続端末部長さ＋端末部間スペース長さ）である。
また３層目用のフラットケーブル体として、片面に熱融着性接着層（図示せず）を有し、長さ違いの２枚の絶縁フィルム（１ｅ）（幅１０ｍｍ×長さ１２６ｍｍ×厚さ０．０５ｍｍ）、（１ｆ）（幅１０ｍｍ×長さ１１６ｍｍ×厚さ０．０５ｍｍ）を、接着層面を互いに内側にして、この間に導体（２ｃ）として、厚さ０．０７ｍｍ×幅１．０ｍｍの平角銅線をピッチ３ｍｍで２本配列し、両端部には端末導体露出部（ｔ３）を設けて加熱融着し、ケーブル全長が１２６ｍｍ、導体端末露出部長が各５ｍｍ、ケーブル幅が１０ｍｍのフラットケーブル体（１０ｃ）を製造した。前記３層目用フラットケーブル体（１０ｃ）の長さは、２層目用フラットケーブル体長さ−２×（接続端末部長さ＋端末部間スペース長さ）である。
そして、前記１層目用フラットケーブル体（１０ａ）と２層目用フラットケーブル体（１０ｂ）のそれぞれの端末導体露出部（ｔ１）、（ｔ２）の面を同一面とし、端末部間スペース（ｓ１）を設けるため、フラットケーブル体（１０ａ）の端末導体露出部（ｔ１）より長手方向に、１．０ｍｍ中央寄りにフラットケーブル体（１０ｂ）を重ね合わせ、接着剤にて貼り合わせた。
次いで、前記２層目用フラットケーブル体（１０ｂ）と３層目用フラットケーブル体（１０ｃ）のそれぞれの端末導体露出部（ｔ２）、（ｔ３）の面を同一面とし、フラットケーブル体（１０ｂ）の端末導体露出部（ｔ２）より長手方向に、１．０ｍｍ中央寄りにフラットケーブル体（１０ｃ）を重ね合わせ、接着剤にて貼り合わせて端末部間スペース（ｓ２）を設け、多層（３層）フラットケーブル（３０）を製造した。
A second embodiment of the multilayer flat cable and the method for producing the same according to the present invention will be described with reference to FIGS. In addition, the flat cable body of each layer is made into the structure according to an above-described basic composition flat cable body (10). Further, the length of the flat cable bodies for the first layer, the second layer, and the third layer is such that when the layers are stacked and bonded together, a space between the terminal portions is formed between the connection terminal portions of the cable bodies of the respective layers. The length is adjusted.
-Manufacture of multi-layer (three-layer) flat cables-
As the flat cable body for the first layer, the same flat cable body (10a) as in Example 1 was used.
Also, as a flat cable body for the second layer, there are two insulating films (1c) (width 10 mm × length 138 mm × thickness) having a heat fusible adhesive layer (not shown) on one side. 0.05 mm), (1d) (width 10 mm × length 128 mm × thickness 0.05 mm), with the adhesive layer surfaces facing each other, and a conductor (2b) between them, thickness 0.05 mm × width 0.7 mm The three tin-plated rectangular copper wires are arranged at a pitch of 1 mm, end conductor exposed portions (t2) are provided at both ends and heat-sealed, the total cable length is 138 mm, the end conductor exposed portion length is 5 mm each, and the cable width is A 10 mm flat cable body (10b) was produced. The length of the second-layer flat cable body (10b) is the first-layer flat cable body length−2 × (connection terminal portion length + terminal portion space length).
Further, as a flat cable body for the third layer, two insulating films (1e) (width 10 mm × length 126 mm × thickness) having a heat-bonding adhesive layer (not shown) on one surface are provided. 0.05 mm), (1f) (width 10 mm × length 116 mm × thickness 0.05 mm), with the adhesive layer surfaces facing each other, and as a conductor (2c) between them, thickness 0.07 mm × width 1.0 mm Two rectangular copper wires are arranged at a pitch of 3 mm, end conductor exposed portions (t3) are provided at both ends, and heat fusion is performed. The total length of the cable is 126 mm, the length of the exposed conductor end portion is 5 mm, and the cable width is 10 mm. A flat cable body (10c) was produced. The length of the third-layer flat cable body (10c) is the second-layer flat cable body length−2 × (connection terminal portion length + terminal portion space length).
The surfaces of the terminal conductor exposed portions (t1) and (t2) of the first-layer flat cable body (10a) and the second-layer flat cable body (10b) are the same surface, and the space between the terminal portions ( In order to provide s1), the flat cable body (10b) was overlapped in the longitudinal direction from the terminal conductor exposed portion (t1) of the flat cable body (10a) toward the center of 1.0 mm, and bonded with an adhesive.
Next, the surfaces of the terminal conductor exposed portions (t2) and (t3) of the flat cable body (10b) for the second layer and the flat cable body (10c) for the third layer are set to the same plane, and the flat cable body (10b ), The flat cable body (10c) is overlapped in the longitudinal direction from the terminal conductor exposed portion (t2) to the center of 1.0 mm, and bonded with an adhesive to provide a space (s2) between the terminal portions. Layer) A flat cable (30) was produced.
本発明の多層フラットケーブルおよびその製造方法の第３実施形態について説明する。
なお各層のフラットケーブル体は上記した基本構成フラットケーブル体（１０）に準じた構造としている。
―多層（背面同士貼り合わせ２層）フラットケーブルの製造―
図示はしないが、厚さ０．０５ｍｍ×幅０．７ｍｍの錫めっき平角銅線をピッチ１ｍｍで５本配列させた、ケーブル全長が１５０ｍｍ、導体端末露出部長が各５ｍｍ、ケーブル幅が１０ｍｍのフラットケーブル体の２枚を、端末導体露出面からみて背面同士を、ケーブルの長手方向において１ｍｍずらして端末部間スペースを設け、それぞれの背面に予め塗工しておいた熱可塑性接着剤を接着させるに十分な熱を持ったロールによってラミネートして貼り合わせ、多層（背面同士貼り合わせ２層）フラットケーブルを製造した。
A third embodiment of the multilayer flat cable and the manufacturing method thereof according to the present invention will be described.
In addition, the flat cable body of each layer is made into the structure according to an above-described basic composition flat cable body (10).
-Manufacture of multi-layer (2 layers bonded back to back) flat cable-
Although not shown in the drawings, five flat plated copper wires with a thickness of 0.05 mm and a width of 0.7 mm are arranged at a pitch of 1 mm, the cable has a total length of 150 mm, a conductor terminal exposed portion length of 5 mm each, and a cable width of 10 mm. Two pieces of the cable body are viewed from the exposed surface of the terminal conductor, and the back surfaces are shifted by 1 mm in the longitudinal direction of the cable to provide a space between the terminal portions, and a thermoplastic adhesive that has been applied in advance is adhered to each back surface. And laminated with a roll having sufficient heat to produce a multi-layer (back-to-back bonded two-layer) flat cable.
上記第１〜３実施形態により得られた多層フラットケーブルは、それぞれの端末は任意の端末間スペースを開けるため各層の導体間の絶縁信頼性を確保出来た。また、２層、３層、４層と、必要数のフラットケーブル体を重ねる事によって、任意の多層構造をとる事が出来、必要な芯数を従来と同じ幅のスペースに配列させる事が出来、同一幅において通常のフラットケーブルに比べ導体を高集積化することが出来た。また導体端末部間のスペースを任意に決定する事が出来、層の異なる導体間の絶縁信頼性を得ることが出来た。 In the multilayer flat cable obtained by the first to third embodiments, each terminal can open an arbitrary inter-terminal space, so that insulation reliability between conductors of each layer can be secured. In addition, by stacking the required number of flat cable bodies with 2 layers, 3 layers, and 4 layers, it is possible to have an arbitrary multi-layer structure, and the required number of cores can be arranged in the same width space as before. In the same width, the conductor could be highly integrated compared to a normal flat cable. Moreover, the space between the conductor terminal portions could be arbitrarily determined, and the insulation reliability between conductors of different layers could be obtained.
本発明の多層フラットケーブルは、配線材の省スペース性と簡便な接続が可能となり、電子機器類のプリント基盤，内部配線材、自動車の内部配線材として有用である。 The multilayer flat cable of the present invention enables space-saving and simple connection of wiring materials, and is useful as a printed board for electronic devices, an internal wiring material, and an internal wiring material for automobiles.
１，１’，１ａ，１ｂ，１ｃ，１ｄ，１ｅ，１ｆ 絶縁フィルム
２，２ａ，２ｂ，２ｃ 導体
１０ 基本構成フラットケーブル体
１０ａ １層目用のフラットケーブル体
１０ｂ ２層目用のフラットケーブル体
１０ｃ ３層目用のフラットケーブル体
２０ 多層フラットケーブル（２層フラットケーブル）
３０ 多層フラットケーブル（３層フラットケーブル）
ｓ１，ｓ２ 端末部間スペース
ｔ，ｔ１，ｔ２，ｔ３ 接続端末部（端末導体露出部）
1, 1 ', 1a, 1b, 1c, 1d, 1e, 1f Insulating film 2, 2a, 2b, 2c Conductor 10 Basic configuration flat cable body 10a Flat cable body for the first layer 10b Flat cable body for the second layer 10c Flat cable body for 3rd layer 20 Multilayer flat cable (2 layer flat cable)
30 Multi-layer flat cable (3-layer flat cable)
s1, s2 Space between terminal parts t, t1, t2, t3 Connection terminal part (terminal conductor exposed part)
Claims (4)
前記フラットケーブル体の複数枚は、それぞれを多層に重ね、貼り合わせた際に、各層のフラットケーブル体の接続端末部間に端末部間スペースができる長さに調製されており、またフラットケーブル体の端末導体露出面側の絶縁フィルム面と、次層となるフラットケーブル体の端末導体露出面側からみて背面側の絶縁フィルム面と、が端末部間スペースを設けて重ね、貼り合わされて成ることを特徴とする多層フレキシブルフラットケーブル。 Two insulating films having a heat-sealable adhesive layer on one side, with the conductors of both ends exposed for a predetermined length to shorten the length of one film by the length of the connection terminal (terminal conductor exposed portion) A flexible flat cable body in which a plurality of flat conductors are arranged in parallel with each other at a predetermined interval and heat-sealed is used as a basic structural unit, and a plurality of flat cable bodies of this basic structural unit are It is a multilayer flexible flat cable that is layered and laminated together,
A plurality of the flat cable bodies are prepared in such a length that a space between the terminal portions can be formed between the connecting terminal portions of the flat cable bodies of each layer when the layers are laminated and bonded together. The insulating film surface on the terminal conductor exposed surface side and the insulating film surface on the back side as viewed from the terminal conductor exposed surface side of the flat cable body to be the next layer are stacked and bonded together with a space between the terminal portions. Multi-layer flexible flat cable characterized by
前記フラットケーブル体の２枚が、同一の長さ、若しくは長さ違いに調製されており、また２枚のフラットケーブル体の端末導体露出面側からみて背面側の絶縁フィルム面同士が、両接続端末部の先端部と先端部との間に端末部間スペースを設けて重ね、貼り合わされて成ることを特徴とする多層フレキシブルフラットケーブル。 Two insulating films having a heat-sealable adhesive layer on one side, with the conductors of both ends exposed for a predetermined length to shorten the length of one film by the length of the connection terminal (terminal conductor exposed portion) A flexible flat cable body in which a plurality of flat conductors are arranged in parallel with each other at a predetermined interval and heat-sealed is used as a basic structural unit, and a plurality of flat cable bodies of this basic structural unit are It is a multilayer flexible flat cable that is layered and laminated together,
The two flat cable bodies are prepared to have the same length or different lengths, and the insulating film surfaces on the back side as viewed from the terminal conductor exposed surface side of the two flat cable bodies are connected to each other. A multi-layer flexible flat cable characterized in that a space between terminal portions is provided between a tip portion and a tip portion of the terminal portion, and is laminated and bonded.
片面に熱融着性接着層を有し、両端部の導体を所定長露出させて接続端末部（端末導体露出部）を設ける長さ分のみ片方のフィルム長さを短くした２枚の絶縁フィルムを、接着層面を互いに内側にし、この間に複数本の平角導体を所定間隔に並列配置して加熱融着したフレキシブルフラットケーブル体を多層フレキシブルフラットケーブルの基本構成単位として製造する場合、該フラットケーブル体の複数枚を多層に重ね、貼り合わせた際に、各層のフラットケーブル体の接続端末部間に端末部間スペースができる長さに調製して、多層分用のフラットケーブル体を製造し、次いでこれらフラットケーブル体を、順次、フラットケーブル体の導体露出面側の絶縁フィルム面と、次層となるフラットケーブル体の端末導体露出面側からみて背面側の絶縁フィルム面とを、端末部間スペースを設けて多層に重ね、貼り合わせて多層フレキシブルフラットケーブルを製造することを特徴とする多層フレキシブルフラットケーブルの製造方法。 It is a manufacturing method of the multilayer flexible flat cable of Claim 1,
Two insulating films having a heat-sealable adhesive layer on one side, the length of one film being shortened by the length that the conductors at both ends are exposed for a predetermined length to provide connection terminal portions (terminal conductor exposed portions) When a flexible flat cable body, in which a plurality of flat conductors are arranged in parallel between them at a predetermined interval between them and heated and fused, is manufactured as a basic structural unit of a multilayer flexible flat cable, the flat cable body When a plurality of sheets are stacked and bonded together, the flat cable body for each layer is prepared to a length that allows a space between the terminal portions between the connecting terminal portions of the flat cable body, These flat cable bodies are sequentially viewed from the insulating film surface on the conductor exposed surface side of the flat cable body and the terminal conductor exposed surface side of the flat cable body that is the next layer. Of the insulating film surface, a method for manufacturing a multilayer flexible flat cable, characterized in that superimposed on the multi-layer by providing a space between the terminal unit, to produce a multi-layer flexible flat cable by bonding.
片面に熱融着性接着層を有し、両端部の導体を所定長露出させて接続端末部（端末導体露出部）を設ける長さ分のみ片方のフィルム長さを短くした２枚の絶縁フィルムを、接着層面を互いに内側にし、この間に複数本の平角導体を所定間隔に並列配置して加熱融着したフレキシブルフラットケーブル体を多層フレキシブルフラットケーブルの基本構成単位として製造する場合、前記フラットケーブル体の長さを、同一の長さ、若しくは長さ違いに調製して２層分用のフラットケーブル体を製造し、次いでこれらフラットケーブル体を、それぞれの端末導体露出面側からみて背面側の絶縁フィルム面同士を、両接続端末部の先端部と先端部との間に端末部間スペースを設けて２層に重ね、貼り合わせて多層フレキシブルフラットケーブルを製造することを特徴とする多層フレキシブルフラットケーブルの製造方法。
It is a manufacturing method of the multilayer flexible flat cable according to claim 2,
Two insulating films having a heat-sealable adhesive layer on one side, the length of one film being shortened by the length that the conductors at both ends are exposed for a predetermined length to provide connection terminal portions (terminal conductor exposed portions) When a flexible flat cable body in which a plurality of rectangular conductors are arranged in parallel at a predetermined interval between them and heated and fused together as a basic structural unit of a multilayer flexible flat cable, the flat cable body is used. The flat cable body for two layers is manufactured by adjusting the length of the cable to the same length or different lengths, and then these flat cable bodies are insulated on the back side when viewed from the end conductor exposed surface side. Multilayer flexible flat cable is manufactured by stacking and bonding film surfaces together in two layers with a space between the end portions between the end portions of both connection end portions. Method for manufacturing a multilayer flexible flat cable, wherein Rukoto.
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| CN101814334A (en) * | 2010-04-30 | 2010-08-25 | 福建捷联电子有限公司 | Double-layer conductor flat flexible line |
| JP2012195245A (en) * | 2011-03-18 | 2012-10-11 | Ricoh Co Ltd | Electronic apparatus |
| JP5814296B2 (en) * | 2013-05-22 | 2015-11-17 | 京楽産業．株式会社 | Game machine |
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| JP6313378B2 (en) * | 2016-07-20 | 2018-04-18 | 京楽産業．株式会社 | Game machine |
| CN114446522A (en) * | 2020-11-04 | 2022-05-06 | 进营全球株式会社 | Flexible flat cable and laminated busbar comprising same |
| CN116908603B (en) * | 2023-09-14 | 2023-11-14 | 深圳市艾联特电子科技有限公司 | Reliability detection method and system based on connector |
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