JP2008257905A - Cable assembly with connector - Google Patents

Cable assembly with connector Download PDF

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JP2008257905A
JP2008257905A JP2007096222A JP2007096222A JP2008257905A JP 2008257905 A JP2008257905 A JP 2008257905A JP 2007096222 A JP2007096222 A JP 2007096222A JP 2007096222 A JP2007096222 A JP 2007096222A JP 2008257905 A JP2008257905 A JP 2008257905A
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connector
electric wire
bundled
length
cable assembly
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Kazuo Tanihira
一男 谷平
Takashi Matsukawa
隆司 松川
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Fujikura Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a cable assembly with a connector in which conduction defect such as disconnection caused by excessive stress affecting an electric wire does not occur even if the connector is twisted. <P>SOLUTION: In the cable assembly 10 with the connector, when a cross-sectional diameter D of a binding part C1, lengths F of terminal parts C2 on an axial core Q of the binding part C1, a spreading width H along the radial direction T at the terminal part C2 of the electric wire 11 positioned at both ends of one line P at another one 12a of the terminal parts C2, and a twisting angle R of the electric wire 11 at the terminal part C2 are defined, in all of a plurality pieces of the electric wires 11, 11..., the lengths L at the terminal part C2 are set to have lengths that satisfy an expression (1): (F<SP>2</SP>+H<SP>2</SP>)<SP>1/2</SP>+R/360πD<L<F+H-R/360πD. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、複数本の電線とコネクタとを備えたコネクタ付きケーブルアッセンブルに関する。   The present invention relates to a cable assembly with a connector including a plurality of electric wires and a connector.

例えば、ノートパソコン、携帯電話、小型ビデオカメラなど小型の通信機器、情報機器においては、機器の本体部分とディスプレイとの電気的接続や、機器内の配線などに極めて細い多数の電線が用いられている。この多数の電線は、配線を容易にし、かつ収容面積をできるだけ少なくするために、多数本の電線を束ね、端部にコネクタを接続したコネクタ付きケーブルアッセンブルという形態で用いられるのが一般的である。   For example, in small communication devices and information devices such as notebook computers, mobile phones, and small video cameras, a large number of extremely thin wires are used for electrical connection between the main body of the device and the display and wiring in the device. Yes. In order to facilitate wiring and reduce the storage area as much as possible, the large number of electric wires are generally used in the form of a cable assembly with a connector in which a large number of electric wires are bundled and a connector is connected to the end. .

コネクタ付きケーブルアッセンブルは、単芯ケーブルや同軸ケーブルなどの電線を多数本束ねた束ね部と、この束ね部とコネクタとの間にあって、一線状に端子が配列された平形のコネクタに向かって電線が広げられた端末部と、この端末部に接続されるコネクタとからなる。   A cable assembly with a connector is a bundling unit that bundles a number of wires such as single-core cables and coaxial cables, and the wires are placed between the bundling unit and the connector. It consists of an extended terminal part and a connector connected to this terminal part.

このようなコネクタ付きケーブルアッセンブルは、束ね部に連なる端末部において、平形のコネクタの幅方向中央部にある端子に接続される電線と、コネクタの幅方向端部にある端子に接続される電線とでは、必要な長さが異なる。即ち、一線状に端子が配列されたコネクタの中心付近に位置する端子に繋がる電線よりも、両端側に位置する端子に繋がる電線のほうが、端末部での長さを長く取る必要がある。このため、全ての電線を互いに同じ長さで揃えてコネクタに接続すると、コネクタの幅方向中央部にある端子に接続される電線は、端末部において弛みが生じ、逆にコネクタの両端側に位置する端子に繋がる電線では、過剰な引張応力が加わる懸念がある。   In such a cable assembly with a connector, in the terminal portion connected to the bundle portion, an electric wire connected to a terminal at the center portion in the width direction of the flat connector, and an electric wire connected to a terminal at the end portion in the width direction of the connector Then the required length is different. That is, it is necessary to take a longer length at the terminal portion of the electric wire connected to the terminal located at both ends than the electric wire connected to the terminal located near the center of the connector in which the terminals are arranged in a single line. For this reason, when all the wires are aligned to the same length and connected to the connector, the wires connected to the terminals in the center in the width direction of the connector are slackened at the end, and conversely positioned at both ends of the connector. There is a concern that an excessive tensile stress is applied to the electric wire connected to the terminal to be connected.

このような、コネクタの中心付近に接続される電線と端部に接続される電線とを、それぞれ最適な長さにするために、例えば、特許文献1記載の発明には、複数本の素線が平行に配列され、これら複数本の素線が互いに融着されない非融着部において、中心部より幅方向外側に向かって素線の長さを順次長くしたスダレ形多芯ケーブルが記載されている。   In order to make each of the electric wires connected near the center of the connector and the electric wires connected to the end portions have optimum lengths, for example, the invention described in Patent Document 1 includes a plurality of strands. Are arranged in parallel, and in a non-fused portion where the plurality of strands are not fused to each other, there is described a suede type multi-core cable in which the lengths of the strands are sequentially increased from the center toward the outside in the width direction. Yes.

また、特許文献2記載の発明では、上述した特許文献1記載の発明など、多芯ケーブルを構成する電線どうしの全長を数値化したものである。即ち、複数本の電線を1つに束ねた中間部分と、電線どうしをフラット状に配列した両方の端末部分とからなり、両端末部分で中央部よりも外側に配される電線ほどその全長が長くなるように、それぞれの電線の全長を具体的に式で示した範囲に限定したコネクタ付き多芯ケーブルが記載されている。   Moreover, in invention of patent document 2, the full length of the electric wires which comprise a multicore cable, such as the invention of patent document 1 mentioned above, was quantified. In other words, it consists of an intermediate part in which a plurality of electric wires are bundled together and both terminal parts in which the electric wires are arranged in a flat shape. A multi-core cable with a connector is described in which the total length of each electric wire is limited to a specific range shown by a formula so as to be long.

さらに、特許文献3記載の発明では、複数の被覆線に対する融着部分の長さ寸法が、これら複数の被覆線の配列方向に対し、配列中心部分と配列最外縁部分とで異なり、かつ、これら配列中心部分と配列最外縁部分との間で順次徐々に変化するフラットリボンケーブルが記載されている。
特開昭61−230208号公報 特許第3843984号公報 特開2000−294045号公報
Further, in the invention described in Patent Document 3, the length dimension of the fused portion with respect to the plurality of covered wires is different between the arrangement center portion and the arrangement outermost edge portion with respect to the arrangement direction of the plurality of covered wires, and these A flat ribbon cable is described that gradually and gradually changes between an array center portion and an array outermost edge portion.
JP-A-61-230208 Japanese Patent No. 3843984 JP 2000-294045 A

コネクタ付きケーブルアッセンブルは、コネクタを接続するコネクタポート等の設置方向に合わせて、適宜、コネクタの捻回させて差し込む必要がある。また、機器本体と、回転自在な表示部とを接続するコネクタ付きケーブルアッセンブルでは、表示部を回転させるとコネクタポートに結合されているコネクタが捻回されることになる。このように、コネクタが捻回されると、束ね部とコネクタとの間に位置する、電線どうしが互いに固定されていない端末部に最も捻り応力が掛かり、この端末部の電線が捻られることになる。   The cable assembly with a connector needs to be inserted by twisting the connector as appropriate in accordance with the installation direction of a connector port or the like for connecting the connector. Moreover, in the cable assembly with a connector for connecting the device main body and the rotatable display unit, when the display unit is rotated, the connector coupled to the connector port is twisted. As described above, when the connector is twisted, the terminal portion where the electric wires are not fixed to each other, which is located between the bundled portion and the connector, is subjected to the most torsional stress, and the electric wire of the terminal portion is twisted. Become.

しかしながら、特許文献1に記載されたスダレ形多芯ケーブルでは、一線状に広がる平形のコネクタの形状に対応するために、中心部よりも幅方向外側の素線の長さを順次長くしただけであり、コネクタ自体が捻回された際には素線の捻れによって、特に幅方向外側の素線に対して過剰な応力が掛かり、断線や導通不良を引き起こす懸念がある。   However, in the suede type multi-core cable described in Patent Document 1, in order to correspond to the shape of a flat connector that spreads out in a single line, the length of the strands on the outer side in the width direction from the center is simply increased. In addition, when the connector itself is twisted, twisting of the strands may cause excessive stress especially on the strands on the outer side in the width direction, which may cause disconnection or poor conduction.

また、特許文献2に記載されたコネクタ付き多芯ケーブルにおいても、平形のコネクタの幅方向と、電線どうしをフラット状に広げた端末部分の広がり方向とが一致している状態を基準にして、捻り範囲を80°〜190°に限定することによって、電線が断線や導通不良を引き起こさないように考慮したものに過ぎない。即ち、コネクタの捻回によって更に必要になる電線の長さ分を加味したものではないので、コネクタの捻回時に特に端末部分で外側に位置する電線に加わる応力を減じることはできず、断線や導通不良を引き起こす懸念が解消されていない。   Moreover, also in the multicore cable with a connector described in Patent Document 2, on the basis of the state in which the width direction of the flat connector is coincident with the spreading direction of the terminal portion in which the electric wires are spread flat, By limiting the twisting range to 80 ° to 190 °, the wire is merely considered so as not to cause disconnection or poor conduction. In other words, since it does not take into account the length of the electric wire that is further required by twisting the connector, it is not possible to reduce the stress applied to the electric wire located outside at the terminal portion particularly during the twisting of the connector. The concern of poor continuity has not been resolved.

更に、特許文献3に記載されたフラットリボンケーブルにおいても、複数の被覆線に対する融着部分の長さ寸法を配列中心部分と配列最外縁部分との間で順次徐々に変化させただけであり、コネクタの捻回によって生じる被覆線への応力は全く考慮されていない。よって、コネクタを捻回させると、特に配列最外縁部分の被覆線に大きな応力が掛かり、断線や導通不良を引き起こす懸念がある。   Furthermore, even in the flat ribbon cable described in Patent Document 3, the length dimension of the fused portion with respect to the plurality of covered wires is merely gradually changed between the array center portion and the array outermost edge portion, No stress on the coated wire caused by the twisting of the connector is taken into account. Therefore, when the connector is twisted, particularly, a large stress is applied to the covered wire at the outermost edge of the array, which may cause disconnection or poor conduction.

本発明は、上記事情に鑑みてなされたもので、コネクタを捻回させても、電線に過剰な応力がかかって断線などの導通不良を引き起こすことの無いコネクタ付きケーブルアッセンブルを提供することを目的とする。   The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a cable assembly with a connector that does not cause excessive electrical stress on a wire and cause poor conduction such as disconnection even when the connector is twisted. And

本発明の請求項1に記載のコネクタ付きケーブルアッセンブルは、複数本の電線を長さ方向に直交する径方向に沿った断面が略円形になるように束ねた束ね部と、一方が前記束ね部に連なり、束ねられた前記複数本の電線が所定のピッチで並列するように前記径方向に沿った一線に広がり、かつ一方と他方との間で捻回可能な端末部と、該端末部の他方と電気的に接続される平型のコネクタとを有するコネクタ付きケーブルアッセンブルであって、
前記束ね部の断面直径D、前記束ね部の軸心上において前記端末部の長さF、前記端末部の他方で前記一線の両端に位置する前記電線の前記端末部における前記径方向に沿った広がり幅H、前記端末部での前記電線の捻回角度Rと定義したときに、前記複数本の電線は全て、前記端末部における長さLが次式(1)を満たすことを特徴とする。
(F+H1/2+R/360πD<L<F+H−R/360πD・・・・(1)
本発明の請求項2に記載のコネクタ付きケーブルアッセンブルは、請求項1において、前記捻回角度Rは最大190°であることを特徴とする。
本発明の請求項3に記載のコネクタ付きケーブルアッセンブルは、請求項1または2において、前記電線は、単芯ケーブルまたは同軸ケーブルであることを特徴とする。
The cable assembly with a connector according to claim 1 of the present invention includes a bundle portion in which a plurality of electric wires are bundled so that a cross section along a radial direction orthogonal to the length direction is substantially circular, and one of the bundle portions is the bundle portion. A terminal portion that extends in a line along the radial direction so that the bundled electric wires are arranged in parallel at a predetermined pitch and that can be twisted between one and the other; and A cable assembly with a connector having a flat connector electrically connected to the other,
The cross-sectional diameter D of the bundled portion, the length F of the terminal portion on the axial center of the bundled portion, and the radial direction in the terminal portion of the wire located at both ends of the one line on the other end of the terminal portion When the spread width H is defined as the twist angle R of the electric wire at the terminal portion, the length L at the terminal portion satisfies the following expression (1) for all the plurality of electric wires. .
(F 2 + H 2 ) 1/2 + R / 360πD <L <F + H−R / 360πD (1)
A cable assembly with a connector according to claim 2 of the present invention is characterized in that, in claim 1, the twisting angle R is 190 ° at the maximum.
The cable assembly with a connector according to claim 3 of the present invention is characterized in that in claim 1 or 2, the electric wire is a single-core cable or a coaxial cable.

本発明のコネクタ付きケーブルアッセンブルによれば、端末部での電線の長さの範囲を定義することによって、一方の端部だけコネクタを接続し、他方の端部は各種回路基板などに直接接続する場合であっても適用できる。そして、電線全長の長さを調節することなく、少なくともどちらか一方のコネクタに接続される端末部での電線の長さを調節するだけで、電線に過剰な応力が掛かることの無いコネクタ付きケーブルアッセンブルが実現できる。   According to the cable assembly with a connector of the present invention, by defining the range of the length of the electric wire at the terminal portion, the connector is connected to only one end portion, and the other end portion is directly connected to various circuit boards or the like. Even if applicable. And without adjusting the length of the total length of the wire, just adjusting the length of the wire at the end connected to at least one of the connectors, the cable with a connector that does not apply excessive stress to the wire Assembly can be realized.

一方、本発明では、電線の捻回角度を変数として加えて、端末部での電線の長さを導き出すことによって、例え電線が捻回されても、電線に過剰な応力が加わらず、導通不良や断線の懸念が無いコネクタ付きケーブルアッセンブルが実現することが可能になる。   On the other hand, in the present invention, by adding the twist angle of the electric wire as a variable and deriving the length of the electric wire at the terminal portion, even if the electric wire is twisted, excessive stress is not applied to the electric wire, resulting in poor conduction. As a result, it is possible to realize a cable assembly with a connector that is free from fear of disconnection.

以下、本発明に係るコネクタ付きケーブルアッセンブルの一実施形態を図面に基づいて説明する。なお、本発明はこのような実施形態に限定されるものではない。また、以下の説明で用いる図面は、本発明の特徴をわかりやすくするために、便宜上、要部となる部分を拡大して示している場合があり、各構成要素の寸法比率などが実際と同じであるとは限らない。   Hereinafter, an embodiment of a cable assembly with a connector according to the present invention will be described with reference to the drawings. The present invention is not limited to such an embodiment. In addition, in the drawings used in the following description, in order to make the features of the present invention easier to understand, there is a case where a main part is shown in an enlarged manner for convenience, and the dimensional ratio of each component is the same as the actual one. Not necessarily.

図1(a)は、本発明のコネクタ付きケーブルアッセンブルの一例を示す平面図である。また、図1(b)は図1(a)のコネクタの接続端面を正面から見たときの平面図である。
本発明のコネクタ付きケーブルアッセンブル10は、複数本の電線11,11…と、この電線11,11…の一端に電気的に接続されるコネクタ12とを少なくとも備えている。そして、電線11,11…は、束ね部C1と端末部C2の2つの部分に分けられる。
Fig.1 (a) is a top view which shows an example of the cable assembly with a connector of this invention. Moreover, FIG.1 (b) is a top view when the connection end surface of the connector of Fig.1 (a) is seen from the front.
The cable assembly 10 with a connector according to the present invention includes at least a plurality of electric wires 11, 11... And a connector 12 electrically connected to one end of the electric wires 11, 11. The electric wires 11, 11... Are divided into two parts, a bundled part C1 and a terminal part C2.

束ね部C1は、複数本の電線11,11…を長さ方向Lに直交する径方向Tに沿った断面Sが略円形になるように束ねた部分からなる。また、端末部C2は、一方12aが束ね部C1に連なり、束ねられた複数本の電線11,11…が所定のピッチで並列するように径方向Tに沿った一線Pに広がり、かつ一方12aと他方12bとの間で捻回可能な部分からなる。   The bundled part C1 is composed of a part obtained by bundling a plurality of electric wires 11, 11... So that a cross section S along a radial direction T orthogonal to the length direction L is substantially circular. Further, the terminal portion C2 has one end 12a connected to the bundled portion C1, spreads in a line P along the radial direction T so that the bundled plurality of electric wires 11, 11,... And the other 12b.

平型のコネクタ13は、一線Pに沿って所定のピッチで配列された導電材からなる複数の端子14,14…を備えている。そして、それぞれの端子14は、電線11の一端に電気的に接続される。   The flat connector 13 includes a plurality of terminals 14, 14... Made of a conductive material arranged at a predetermined pitch along the line P. Each terminal 14 is electrically connected to one end of the electric wire 11.

このような構成のコネクタ付きケーブルアッセンブル10は、束ね部C1の断面直径D、束ね部C1の軸心Q上において端末部C2の長さF、端末部C2の他方12aで一線Pの両端に位置する電線11の端末部C2における径方向Tに沿った広がり幅H、端末部C2での電線11の捻回角度Rと定義したときに、複数本の電線11,11…は全て、端末部C2における長さLが次式(1)を満たす長さに設定される。
(F+H1/2+R/360πD<L<F+H−R/360πD・・・・(1)
The cable assembly with connector 10 having such a configuration is positioned at both ends of the line P at the cross-sectional diameter D of the bundled portion C1, the length F of the terminal portion C2 on the axis Q of the bundled portion C1, and the other 12a of the terminal portion C2. When the spread width H along the radial direction T in the terminal portion C2 of the electric wire 11 to be defined and the twist angle R of the electric wire 11 at the terminal portion C2, the plurality of electric wires 11, 11,. Is set to a length satisfying the following expression (1).
(F 2 + H 2 ) 1/2 + R / 360πD <L <F + H−R / 360πD (1)

この式(1)において重要な点は、端末部C2での電線11の長さLを定義していることである。従来、特許3843984号公報に記載された発明では、電線の両端にコネクタが接続されることを想定して電線の全長を定義するとともに、この電線の全長は、端末部で幅方向の最も外側に位置する電線どうしの幅の6倍以内という制約があり、相当に限定された条件下でしか適用することができない。   The important point in this formula (1) is that the length L of the electric wire 11 at the terminal portion C2 is defined. Conventionally, in the invention described in Japanese Patent No. 3843984, the total length of the electric wire is defined on the assumption that connectors are connected to both ends of the electric wire, and the total length of the electric wire is at the outermost side in the width direction at the terminal portion. There is a restriction of within 6 times the width of the electric wires located, and it can be applied only under considerably limited conditions.

一方、本発明では、必ずしも電線の両端にコネクタが接続されている必要が無く、例えば、一方の端部だけコネクタを接続し、他方の端部は各種回路基板などに直接接続する場合であっても適用できる。これは、上述したように、本発明では端末部C2での電線11の長さLの範囲を定義しているからである。このように、本発明では、端末部C2での電線11の長さLを導き出すことによって、電線全長の長さを調節することなく、少なくともどちらか一方のコネクタ13に接続される端末部C2での電線11の長さを調節するだけで、電線11に過剰な応力が掛かることの無いコネクタ付きケーブルアッセンブルが実現できる。   On the other hand, in the present invention, it is not always necessary that the connector is connected to both ends of the electric wire. For example, the connector is connected to only one end and the other end is directly connected to various circuit boards. Is also applicable. This is because the range of the length L of the electric wire 11 at the terminal portion C2 is defined in the present invention as described above. As described above, in the present invention, by deriving the length L of the electric wire 11 at the terminal portion C2, the terminal portion C2 connected to at least one of the connectors 13 without adjusting the length of the entire length of the electric wire. By simply adjusting the length of the electric wire 11, it is possible to realize a cable assembly with a connector that does not apply excessive stress to the electric wire 11.

そして、本発明は、端末部C2での電線11の長さを調節することにより、端末部C2での最外縁に位置する電線11どうしの間隔に対して、電線の全長が制限されることがないので、コネクタ付きケーブルアッセンブル10の設計の自由度が大幅に高められる。   And this invention may restrict | limit the full length of an electric wire with respect to the space | interval of the electric wires 11 located in the outermost edge in the terminal part C2 by adjusting the length of the electric wire 11 in the terminal part C2. Therefore, the degree of freedom in designing the connector-attached cable assembly 10 can be greatly increased.

また、式(1)において重要な点は、端末部C2での電線11の捻回角度Rを考慮していることである。例えば、特許3843984号公報に記載された発明では、電線が捻回されたときに必要となる余長が全く考慮されていない。   Moreover, an important point in Formula (1) is that the twist angle R of the electric wire 11 in the terminal part C2 is considered. For example, in the invention described in Japanese Patent No. 3843984, the extra length required when the electric wire is twisted is not considered at all.

例えば、図1(b)に示すように、コネクタ13が角度Rだけ捻回された場合、最も影響を受けるのは、コネクタ13の一線Pに配列された端子14のうち、最も外側に位置する端子14Eに接続される電線11Eである(図1(a)参照)。コネクタ13が角度Rだけ捻回されれば、電線11Eも角度Rだけ捻回されることになる。この捻回によって必要となる余長を考慮しなければ、電線11が捻回された際に強い引張応力が電線11に加わり、導通不良や断線を引き起こす懸念がある。   For example, as shown in FIG. 1B, when the connector 13 is twisted by an angle R, the most affected is the terminal 14 arranged on the one line P of the connector 13 that is located on the outermost side. This is an electric wire 11E connected to the terminal 14E (see FIG. 1A). If the connector 13 is twisted by the angle R, the electric wire 11E is also twisted by the angle R. If the extra length required by this twisting is not taken into consideration, there is a concern that when the electric wire 11 is twisted, a strong tensile stress is applied to the electric wire 11 to cause poor conduction and disconnection.

本発明では、この電線11の捻回角度Rを変数として加えて、端末部C2での電線11の長さLを導き出すことによって、例え電線11が捻回されても、電線11に過剰な応力が加わらず、導通不良や断線の懸念が無いコネクタ付きケーブルアッセンブルが実現できる。   In the present invention, by adding the twist angle R of the electric wire 11 as a variable and deriving the length L of the electric wire 11 at the terminal portion C2, even if the electric wire 11 is twisted, excessive stress is applied to the electric wire 11. As a result, it is possible to realize a cable assembly with a connector that does not cause a conduction failure or disconnection.

本発明の重要な点である電線の捻回について、更に詳述する。図2は、電線の捻回による影響を示した説明図である。図2中、13はコネクタ、C1は束ね部、C2は端末部をそれぞれ示している。今、コネクタ13の最外縁の端子に接続される電線Y(図2(a)参照)に着目し、この電線Yが捻回角度Rで捻回される場合(図2(b)参照)を想定する。電線Yは、束ね部C1にあっては、コネクタ13の接続点から軸心Qに向かって長さHだけ軸心Q寄りに位置している。この電線Yが捻回角度R、例えば190°捻回された場合、捻回前に位置X1にあった電線Yは、捻回後は位置X2まで移動する。   Electric wire twisting, which is an important point of the present invention, will be further described in detail. FIG. 2 is an explanatory diagram showing the influence of the twisting of the electric wire. In FIG. 2, 13 indicates a connector, C1 indicates a bundled portion, and C2 indicates a terminal portion. Now, paying attention to the electric wire Y (see FIG. 2A) connected to the outermost terminal of the connector 13, the case where the electric wire Y is twisted at the twist angle R (see FIG. 2B). Suppose. In the bundled portion C1, the electric wire Y is positioned closer to the axis Q by a length H from the connection point of the connector 13 toward the axis Q. When the electric wire Y is twisted at a twisting angle R, for example, 190 °, the electric wire Y that was at the position X1 before the twisting moves to the position X2 after the twisting.

この捻回によって、電線Yにおける束ね部C1と端末部C2との境界からコネクタ13までの距離の差はL2−L1(図2(a)参照)となり、この距離の差は最長で束ね部C1の断面直径Dに対して(190°/360°)πDとなる。従って、捻回によって電線Yに引張応力を加えないための電線Yの端末部C2における長さは最短で(F+H1/2+R/360πDとなる。これは、束ね部C1と端末部C2との境界からコネクタまでの直線距離に、捻回により延びた距離(捻回による引っ張られ分)を加算した値である。 By this twisting, the difference in distance from the boundary between the bundled portion C1 and the terminal portion C2 in the electric wire Y to the connector 13 becomes L2-L1 (see FIG. 2A), and this distance difference is the longest and the bundled portion C1. It becomes (190 ° / 360 °) πD with respect to the cross-sectional diameter D. Therefore, the length of the end portion C2 of the electric wire Y for preventing the tensile stress from being applied to the electric wire Y by twisting is (F 2 + H 2 ) 1/2 + R / 360πD at the shortest. This is a value obtained by adding the distance extended by twisting (the portion pulled by twisting) to the linear distance from the boundary between the bundled part C1 and the terminal part C2 to the connector.

また、電線Yの最長距離は、束ね部C1と端末部C2との境界からコネクタ13までの距離となるが、電線Yの捻回により電線Yが弛んで、端末部C2での電線Yの広がり方向に対して垂直な高さ方向に向かって電線Yが出っ張る可能性を考慮すると、F+H−πDである必要がある。これらの条件に基づいて、電線Yの端末部C2における長さLは、次式(1)を満たす長さに設定すればよいことが導き出される。
(F+H1/2+R/360πD<L<F+H−R/360πD・・・・(1)
Moreover, although the longest distance of the electric wire Y becomes the distance from the boundary of the bundle part C1 and the terminal part C2 to the connector 13, the electric wire Y loosens by the twist of the electric wire Y, and the electric wire Y spreads in the terminal part C2. Considering the possibility of the electric wire Y protruding in the height direction perpendicular to the direction, it is necessary to be F + H−πD. Based on these conditions, it is derived that the length L of the terminal portion C2 of the electric wire Y may be set to a length that satisfies the following formula (1).
(F 2 + H 2 ) 1/2 + R / 360πD <L <F + H−R / 360πD (1)

なお、上述した実施形態において、それぞれの電線は、単芯ケーブル、同軸ケーブルなどどのような形態の電線であってもよい。また、束ね部は、電線を構成する被覆材どうしを接着や融着した構成であっても、複数本の電線を束ねてチューブ等の被膜で覆った構成であってもよい。   In the above-described embodiment, each electric wire may be any type of electric wire such as a single-core cable or a coaxial cable. Further, the bundling portion may have a configuration in which the covering materials constituting the electric wires are bonded or fused, or a configuration in which a plurality of electric wires are bundled and covered with a coating such as a tube.

このような構成の本発明のコネクタ付きケーブルアッセンブルの製造方法を簡単に説明する。本発明によるコネクタ付きケーブルアッセンブルを製造する際には、まず、図3(a)に示すように、複数の電線11を一列に並べた平坦なケーブルGを用意する。次に、図3(b)に示すように、この平坦なケーブルGの一端側をV字形にカットする。この時、束ね部C1となる、A,B,Cでそれぞれ示される長さの区間を設定し、C区間の端部Uから先を束ね部C1とする。   A method of manufacturing the cable assembly with a connector of the present invention having such a configuration will be briefly described. When manufacturing a cable assembly with a connector according to the present invention, first, as shown in FIG. 3A, a flat cable G in which a plurality of electric wires 11 are arranged in a row is prepared. Next, as shown in FIG. 3B, one end of the flat cable G is cut into a V shape. At this time, a section having a length indicated by A, B, and C, which becomes the bundled part C1, is set, and the end from the end U of the C section is designated as the bundled part C1.

区間Aは(W/4−F1/2長さで示される。Wはコネクタに配列された端子のうち、最も外側に位置する両端子に接続される電線間の距離である。この区間Aの長さだけケーブルの一端側がV字形にカットされる。区間Bはコネクタ接続後に端末部となる部分の長さを示す。区間Cは、捻回角度Rを考慮した弛み分の長さであり、R/360πDで示される。このような区間A,B,Cを設定し、C区間の端部Uよりも先を束ね部C2として束ね加工を施すとともに、電線の先端をフラット化してコネクタ13を接続する(図3(c)参照)。これにより、電線を捻回させても導通不良や断線を引き起こす懸念が無いコネクタ付きケーブルアッセンブルが製造できる。 The section A is indicated by (W 2 / 4−F 2 ) ½ length. W is the distance between the wires connected to both terminals located on the outermost side among the terminals arranged in the connector. One end of the cable is cut into a V shape by the length of the section A. Section B indicates the length of the portion that becomes the terminal portion after the connector is connected. The section C is the length of the slack considering the twist angle R, and is indicated by R / 360πD. Such sections A, B, and C are set, the end portion U of the C section is bundled as a bundled portion C2, and the connector 13 is connected by flattening the tip of the wire (FIG. 3 (c). )reference). Thereby, even if it twists an electric wire, the cable assembly with a connector which does not have a possibility of causing a conduction defect and a disconnection can be manufactured.

本発明のコネクタ付きケーブルアッセンブルの一例を示す平面図である。It is a top view which shows an example of the cable assembly with a connector of this invention. 本発明のコネクタ付きケーブルアッセンブルにおける電線の捻回による影響を説明する平面図である。It is a top view explaining the influence by the twist of the electric wire in the cable assembly with a connector of this invention. 本発明のコネクタ付きケーブルアッセンブルの製造方法の一例を示す平面図である。It is a top view which shows an example of the manufacturing method of the cable assembly with a connector of this invention.

符号の説明Explanation of symbols

10 コネクタ付きケーブルアッセンブル、11 電線、13 コネクタ、C1 束ね部、C2 端末部。


10 Cable assembly with connector, 11 electric wire, 13 connector, C1 bundled part, C2 terminal part.


Claims (3)

複数本の電線を長さ方向に直交する径方向に沿った断面が略円形になるように束ねた束ね部と、一方が前記束ね部に連なり、束ねられた前記複数本の電線が所定のピッチで並列するように前記径方向に沿った一線に広がり、かつ一方と他方との間で捻回可能な端末部と、該端末部の他方と電気的に接続される平型のコネクタとを有するコネクタ付きケーブルアッセンブルであって、
前記束ね部の断面直径D、
前記束ね部の軸心上において端末部の長さF、
前記端末部の他方で前記一線の両端に位置する前記電線の前記端末部における前記径方向に沿った広がり幅H、
前記端末部での前記電線の捻回角度R、
と定義したときに、前記複数本の電線は全て、前記端末部における長さLが次式(1)を満たすことを特徴とするコネクタ付きケーブルアッセンブル。
(F+H1/2+R/360πD<L<F+H−R/360πD・・・・(1)
A bundled portion in which a plurality of wires are bundled so that a cross section along a radial direction perpendicular to the length direction is substantially circular, and one of the bundled wires is connected to the bundled portion, and the bundled wires are at a predetermined pitch. A terminal portion that extends in a line along the radial direction so as to be parallel to each other and can be twisted between one and the other, and a flat connector that is electrically connected to the other of the terminal portions. A cable assembly with a connector,
Cross-sectional diameter D of the bundled portion,
The length F of the terminal portion on the axial center of the bundle portion,
The spread width H along the radial direction in the terminal portion of the electric wire located at both ends of the one line on the other end of the terminal portion,
Twist angle R of the electric wire at the terminal portion,
When all of the plurality of electric wires are defined, the length L at the terminal portion satisfies the following formula (1).
(F 2 + H 2 ) 1/2 + R / 360πD <L <F + H−R / 360πD (1)
前記捻回角度Rは、最大190°であることを特徴とする請求項1記載のコネクタ付きケーブルアッセンブル。   The cable assembly with a connector according to claim 1, wherein the twist angle R is a maximum of 190 °. 前記電線は、単芯ケーブルまたは同軸ケーブルであることを特徴とする請求項1または2記載のコネクタ付きケーブルアッセンブル。   The cable assembly with a connector according to claim 1, wherein the electric wire is a single-core cable or a coaxial cable.
JP2007096222A 2007-04-02 2007-04-02 Cable assembly with connector Pending JP2008257905A (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5792705A (en) * 1980-10-04 1982-06-09 Sartorius Werke Gmbh Connecting cable for electric device
JPS61230208A (en) * 1985-04-05 1986-10-14 株式会社フジクラ Screen type multicore cable
JP2000294045A (en) * 1999-04-07 2000-10-20 Japan Aviation Electronics Industry Ltd Flat ribbon cable
JP2004524663A (en) * 2001-03-30 2004-08-12 ザ ラドロウ カンパニー リミテッド パートナーシップ Flexible interconnect cable with ribbon-like end
JP2006261136A (en) * 2006-06-28 2006-09-28 Sumitomo Electric Ind Ltd Manufacturing method of multi-core cable
JP3843984B2 (en) * 2004-02-23 2006-11-08 住友電気工業株式会社 Multi-core cable with connector
JP2006331816A (en) * 2005-05-25 2006-12-07 Junkosha Co Ltd Flat cable

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5792705A (en) * 1980-10-04 1982-06-09 Sartorius Werke Gmbh Connecting cable for electric device
JPS61230208A (en) * 1985-04-05 1986-10-14 株式会社フジクラ Screen type multicore cable
JP2000294045A (en) * 1999-04-07 2000-10-20 Japan Aviation Electronics Industry Ltd Flat ribbon cable
JP2004524663A (en) * 2001-03-30 2004-08-12 ザ ラドロウ カンパニー リミテッド パートナーシップ Flexible interconnect cable with ribbon-like end
JP3843984B2 (en) * 2004-02-23 2006-11-08 住友電気工業株式会社 Multi-core cable with connector
JP2006331816A (en) * 2005-05-25 2006-12-07 Junkosha Co Ltd Flat cable
JP2006261136A (en) * 2006-06-28 2006-09-28 Sumitomo Electric Ind Ltd Manufacturing method of multi-core cable

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