JP3625656B2 - Flat cable terminal - Google Patents

Flat cable terminal Download PDF

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Publication number
JP3625656B2
JP3625656B2 JP24705498A JP24705498A JP3625656B2 JP 3625656 B2 JP3625656 B2 JP 3625656B2 JP 24705498 A JP24705498 A JP 24705498A JP 24705498 A JP24705498 A JP 24705498A JP 3625656 B2 JP3625656 B2 JP 3625656B2
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Japan
Prior art keywords
flat
terminal
flat cable
conductor
pitch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP24705498A
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Japanese (ja)
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JP2000077116A (en
Inventor
敬太郎 和田
静一 上野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
THE FURUKAW ELECTRIC CO., LTD.
Original Assignee
THE FURUKAW ELECTRIC CO., LTD.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority to JP24705498A priority Critical patent/JP3625656B2/en
Publication of JP2000077116A publication Critical patent/JP2000077116A/en
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Publication of JP3625656B2 publication Critical patent/JP3625656B2/en
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  • Multi-Conductor Connections (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、コネクタなどに接続されるフラットケーブルの端末部に関する。
【０００２】
【従来の技術】
電気機器などに搭載される部品の実装密度が上がると、フラットケーブルに接続されるコネクタ内の端子の配列ピッチが小さくなるので、フラットケーブルの端末部の接続端子の配列ピッチも小さくする必要がある。
従来は、偏平導体の配列ピッチよりもフラットケーブルの端部の接続端子の配列ピッチを小さくするために、例えば図４（ａ）、（ｂ）に示すような手段をとっていた（特開平８−１９５２３２号公報参照）。
即ち、フラットケーブル１の端末部近傍において、偏平導体２の導体端部２ｂを接続すべき接続端子３の幅に合わせた先細構造にし、前記導体端部２ｂを前記接続端子３に接続している。そして、先細構造により電気抵抗が大きくなった導体端部２ｂにおける発熱を放散させるために、導体端部２ｂに隣接して幅広導体部２ａを設けている。４は偏平導体２を挟む絶縁フィルムである。
【０００３】
【発明が解決しようとする課題】
しかしながら、上述のフラットケーブルの端末部には以下のような問題があった。即ち、幅広導体部を設けるため、フラットケーブル自体の幅が広くなる。また、偏平導体を先細構造を有する形状に加工するため、一様な幅を有する偏平導体に加工するに比して、導体材料の加工歩留りが低下する。
【０００４】
【課題を解決するための手段】
本発明は上記問題点を解決すべくなされたもので、請求項１記載の発明は、複数の偏平導体を有するフラットケーブルの前記各偏平導体の端末に、必要に応じてピッチ調整用の曲げ部を有し、かつ、放熱用の起立部を設けた接続端子を、それらの先端部が所望のピッチをなすように接続したことを特徴とするフラットケーブルの端末部である。
【０００５】
また、請求項２記載の発明は、複数の偏平導体を有するフラットケーブルの前記各偏平導体の端末に、接続端子を前記各偏平導体の長手方向と略直角をなすように、かつ、それらの先端部が所望のピッチをなすように接続したことを特徴とするフラットケーブルの端末部である。
【０００６】
さらに、請求項３記載の発明は、請求項２記載の発明において、接続端子に放熱用の起立部を設けたことを特徴とするフラットケーブルの端末部である。
【０００７】
請求項１記載の発明によれば、フラットケーブルに接続される接続端子はピッチ調整用の曲げ部を有するため、通常の一様な幅の偏平導体を有するフラットケーブルを用いて、接続端子の先端を所望の小ピッチをなすように配列することができる。また、端末部は通常の一様な幅の偏平導体で構成されるため、フラットケーブルの幅が広くなることがなく、また、導体材料の加工歩留りが低下することもない。さらに、前記接続端子に放熱用の起立部を設けることにより、接続端子の先端のピッチを狭くすることができるとともに、放熱性を向上させることができるので、端末部で電流容量が低下するのを防ぐことができる。
【０００８】
また、請求項２記載の発明によれば、接続端子を前記各偏平導体の長手方向と略直角をなすように接続するため、通常の一様な幅の偏平導体を有するフラットケーブルを用いて、接続端子の偏平導体との接続位置を該偏平導体に沿って調整することにより、接続端子の先端を所望の小ピッチをなすように配列することができる。また、端末部は通常の一様な幅の偏平導体で構成されるため、フラットケーブルの幅が広くなることがなく、また、導体材料の加工歩留りが低下することもない。
【０００９】
さらに、請求項３記載の発明によれば、請求項２記載の発明において、接続端子に放熱用の起立部を設けることにより、接続端子の先端のピッチを狭くすることができるとともに、放熱性を向上させることができるので、端末部で電流容量が低下するのを防ぐことができる。
【００１０】
【発明の実施の形態】
以下、図面に基づいて本発明の実施の形態を詳細に説明する。
図１（ａ）、（ｂ）はそれぞれ、本発明にかかるフラットケーブルの端末部の一実施形態の平面図およびその縦断面図である。
図において、フラットケーブル１０は４本の偏平導体１１を上下両面から絶縁フィルム１２により被覆して形成したものである。そして、接続端子１３が、絶縁フィルム１２が剥離されて露出した一様な幅の偏平導体１１の端部に、超音波溶接などによって強固に固定されている。
４本の接続端子１３は異なった形状をしている。即ち、内側の偏平導体１１に接続する２本の接続端子１３は、直線形状をしており、偏平部１３ｂで偏平導体１１に固定されている。また、外側の２本の接続端子１３は、偏平部１３ｂで内側に曲げられ、偏平部１３ｂがピッチ調整用の曲げ部となっている。そして、これら４本の接続端子１３の先端の嵌合部１３ｃの配列ピッチは、偏平導体１１の配列ピッチよりも小さい、所望のピッチ（例えば、接続する相手コネクタの端子ピッチ）になっている。
【００１１】
また、接続端子１３には、偏平部１３ｂに偏平導体１１に直交する方向に起立する起立部１３ａを有している。起立部１３ａは、偏平部１３ｂの偏平導体１１への固定部分の片側を折り曲げて形成されている。この起立部１３ａは、必要とする電流容量に対して十分に余裕のある厚さ、長さ及び高さを有するものであり、また、偏平部１３ｂに生じた熱を放散するのに十分な表面積を有するものである。
従って、偏平導体１１の端末部近傍を特に広幅に形成する必要はないので、偏平導体１１のピッチも特に広くする必要はない。
なお、起立部１３ａを、偏平導体１１に直交する方向に起立しておけば、金属端子１３の配列ピッチに影響を与えることはない。
【００１２】
なお、起立部１３ａは上記形状に限らず、例えば図２（ａ）、（ｂ）に示すように、偏平部１３ｂの偏平導体１１から離れた部分を折り曲げて形成してもよい。
【００１３】
図３（ａ）、（ｂ）はそれぞれ、他の実施形態の平面図およびその縦断面図である。
本実施形態では、接続端子１３は一様な幅の偏平導体１１に直交するように固定されている。従って、偏平導体１１の配列ピッチにかかわらず、接続端子１３を所望のピッチに配列することができる。本実施形態では、起立部１３ａは、偏平部１３ｂの偏平導体１１へ固定された部分の両側を折り曲げて形成されている。
【００１４】
上記実施形態では、一様な幅の偏平導体で構成されているので、導体材料の加工歩留りが低下することはない。また、接続端子に起立部を設けたため、フラットケーブル自体よりも電流容量が低下することもないので、端末部のためにフラットケーブルの幅を広くする必要はない。
【００１５】
なお、上記実施形態では、接続端子１３に起立部１３ａを設けたが、使用する電流容量によっては、起立部１３ａを必ずしも設けなくてもよい。
【００１６】
【発明の効果】
本発明によれば、導体材料の加工歩留りを低下させることなく、また、電流容量を低下させることなく（言い換えると、端末部のためにフラットケーブルの幅を広くすることなく）、接続端子を小配列ピッチでフラットケーブルに接続することができるという優れた効果がある。
【図面の簡単な説明】
【図１】（ａ）、（ｂ）はそれぞれ、本発明にかかるフラットケーブルの端末部の一実施形態の平面図およびその縦断面図である。
【図２】（ａ）、（ｂ）はそれぞれ、上記実施形態において起立部の形状をかえた他の実施形態の平面図およびその縦断面図である。
【図３】（ａ）、（ｂ）はそれぞれ、他の実施形態の平面図およびその縦断面図である。
【図４】（ａ）、（ｂ）はそれぞれ、従来のフラットケーブルの端末部の平面図およびその縦断面図である。
【符号の説明】
１０ フラットケーブル
１１ 偏平導体
１２ 絶縁フィルム
１３ 接続端子
１３ａ 起立部
１３ｂ 偏平部
１３ｃ 嵌合部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a terminal portion of a flat cable connected to a connector or the like.
[0002]
[Prior art]
As the mounting density of components mounted on electrical equipment and the like increases, the arrangement pitch of the terminals in the connector connected to the flat cable becomes smaller, so it is necessary to reduce the arrangement pitch of the connection terminals in the terminal portion of the flat cable. .
Conventionally, in order to make the arrangement pitch of the connection terminals at the end of the flat cable smaller than the arrangement pitch of the flat conductors, for example, means as shown in FIGS. -See 195232).
That is, in the vicinity of the terminal portion of the flat cable 1, the conductor end 2 b of the flat conductor 2 is tapered to match the width of the connection terminal 3 to be connected, and the conductor end 2 b is connected to the connection terminal 3. . In order to dissipate heat generated in the conductor end 2b whose electrical resistance is increased by the tapered structure, a wide conductor 2a is provided adjacent to the conductor end 2b. An insulating film 4 sandwiches the flat conductor 2.
[0003]
[Problems to be solved by the invention]
However, the terminal portion of the flat cable described above has the following problems. That is, since the wide conductor portion is provided, the width of the flat cable itself is increased. In addition, since the flat conductor is processed into a shape having a tapered structure, the processing yield of the conductor material is reduced as compared to processing into a flat conductor having a uniform width.
[0004]
[Means for Solving the Problems]
The present invention has been made to solve the above-mentioned problems, and the invention according to claim 1 is directed to a bent portion for adjusting a pitch, if necessary, at an end of each flat conductor of a flat cable having a plurality of flat conductors. And a terminal portion of a flat cable characterized in that connecting terminals provided with rising portions for heat dissipation are connected so that their tip portions form a desired pitch.
[0005]
According to a second aspect of the present invention, there is provided a flat cable having a plurality of flat conductors, the connection terminals of which are substantially perpendicular to the longitudinal direction of the flat conductors at the ends of the flat conductors, and their tips. It is the terminal part of the flat cable characterized by connecting so that a part may make a desired pitch.
[0006]
Further, the invention described in claim 3 is the terminal portion of the flat cable according to the invention described in claim 2, characterized in that the connecting terminal is provided with a rising portion for heat dissipation.
[0007]
According to the first aspect of the present invention, since the connecting terminal connected to the flat cable has a bent portion for pitch adjustment, the tip of the connecting terminal is used by using a flat cable having a flat conductor having a uniform width. Can be arranged to form a desired small pitch. In addition, since the terminal portion is composed of a flat conductor having a normal uniform width, the width of the flat cable does not increase and the processing yield of the conductor material does not decrease. In addition, by providing an upright portion for heat dissipation in the connection terminal, the pitch at the tip of the connection terminal can be narrowed and the heat dissipation can be improved, so that the current capacity is reduced at the terminal portion. Can be prevented.
[0008]
According to the invention of claim 2, in order to connect the connection terminal so as to be substantially perpendicular to the longitudinal direction of each of the flat conductors, a flat cable having a flat conductor having a normal uniform width is used. By adjusting the connection position of the connection terminal with the flat conductor along the flat conductor, the tips of the connection terminals can be arranged at a desired small pitch. In addition, since the terminal portion is composed of a flat conductor having a normal uniform width, the width of the flat cable does not increase and the processing yield of the conductor material does not decrease.
[0009]
Furthermore, according to the invention described in claim 3, in the invention described in claim 2, the pitch of the tip of the connection terminal can be narrowed and the heat dissipation can be reduced by providing the connection terminal with the rising portion for heat dissipation. Since it can improve, it can prevent that a current capacity falls in a terminal part.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1A and 1B are a plan view and a longitudinal sectional view of an embodiment of a terminal portion of a flat cable according to the present invention, respectively.
In the figure, a flat cable 10 is formed by covering four flat conductors 11 with an insulating film 12 from above and below. The connection terminal 13 is firmly fixed to the end of the flat conductor 11 having a uniform width exposed by peeling off the insulating film 12 by ultrasonic welding or the like.
The four connection terminals 13 have different shapes. That is, the two connection terminals 13 connected to the inner flat conductor 11 have a linear shape and are fixed to the flat conductor 11 by the flat portion 13b. The two outer connection terminals 13 are bent inward by a flat portion 13b, and the flat portion 13b is a bent portion for pitch adjustment. The arrangement pitch of the fitting portions 13c at the tips of the four connection terminals 13 is smaller than the arrangement pitch of the flat conductors 11 (for example, the terminal pitch of the mating connector to be connected).
[0011]
Further, the connection terminal 13 has an upright portion 13 a that rises in a direction perpendicular to the flat conductor 11 in the flat portion 13 b. The upright portion 13a is formed by bending one side of the fixed portion of the flat portion 13b to the flat conductor 11. The upright portion 13a has a thickness, length, and height sufficient for the required current capacity, and has a sufficient surface area to dissipate heat generated in the flat portion 13b. It is what has.
Accordingly, it is not necessary to make the vicinity of the end portion of the flat conductor 11 wide so that the pitch of the flat conductor 11 does not need to be particularly wide.
In addition, if the standing part 13a stands up in the direction orthogonal to the flat conductor 11, the arrangement pitch of the metal terminals 13 will not be affected.
[0012]
The standing portion 13a is not limited to the shape described above, and may be formed by bending a portion of the flat portion 13b away from the flat conductor 11 as shown in FIGS. 2 (a) and 2 (b), for example.
[0013]
3A and 3B are a plan view and a longitudinal sectional view of another embodiment, respectively.
In the present embodiment, the connection terminal 13 is fixed so as to be orthogonal to the flat conductor 11 having a uniform width. Therefore, the connection terminals 13 can be arranged at a desired pitch regardless of the arrangement pitch of the flat conductors 11. In this embodiment, the upright part 13a is formed by bending both sides of the part fixed to the flat conductor 11 of the flat part 13b.
[0014]
In the said embodiment, since it is comprised by the flat conductor of uniform width, the processing yield of a conductor material does not fall. Moreover, since the standing portion is provided in the connection terminal, the current capacity does not decrease as compared with the flat cable itself, and therefore it is not necessary to widen the flat cable for the terminal portion.
[0015]
In the above embodiment, the standing portion 13a is provided on the connection terminal 13, but the standing portion 13a is not necessarily provided depending on the current capacity to be used.
[0016]
【The invention's effect】
According to the present invention, the connection terminal can be reduced without reducing the processing yield of the conductor material and without reducing the current capacity (in other words, without increasing the width of the flat cable for the terminal portion). There is an excellent effect that it can be connected to a flat cable at an arrangement pitch.
[Brief description of the drawings]
FIGS. 1A and 1B are a plan view and a longitudinal sectional view, respectively, of an embodiment of a terminal portion of a flat cable according to the present invention.
FIGS. 2A and 2B are a plan view and a longitudinal sectional view, respectively, of another embodiment in which the shape of the upright portion is changed in the embodiment.
FIGS. 3A and 3B are a plan view and a longitudinal sectional view of another embodiment, respectively.
4A and 4B are a plan view and a longitudinal sectional view of a terminal portion of a conventional flat cable, respectively.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Flat cable 11 Flat conductor 12 Insulating film 13 Connection terminal 13a Standing part 13b Flat part 13c Fitting part

Claims (3)

複数の偏平導体を有するフラットケーブルの前記各偏平導体の端末に、必要に応じてピッチ調整用の曲げ部を有し、かつ、放熱用の起立部を設けた接続端子を、それらの先端部が所望のピッチをなすように接続したことを特徴とするフラットケーブルの端末部。To the terminal of the flat conductor of the flat cable having a plurality of flat conductors, have a bending portion for pitch adjustment as needed, and a connection terminal provided with a standing portion for heat radiation, their tip A flat cable terminal portion that is connected to form a desired pitch. 複数の偏平導体を有するフラットケーブルの前記各偏平導体の端末に、接続端子を前記各偏平導体の長手方向と略直角をなすように、かつ、それらの先端部が所望のピッチをなすように接続したことを特徴とするフラットケーブルの端末部。Connect the connection terminal to the end of each flat conductor of a flat cable having a plurality of flat conductors so that the connecting terminal is substantially perpendicular to the longitudinal direction of each flat conductor and the leading ends thereof form a desired pitch. A flat cable terminal. 接続端子に放熱用の起立部を設けたことを特徴とする請求項２記載のフラットケーブルの端末部。The terminal portion of the flat cable according to claim 2 , wherein an upright portion for heat dissipation is provided on the connection terminal.
JP24705498A 1998-09-01 1998-09-01 Flat cable terminal Expired - Fee Related JP3625656B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24705498A JP3625656B2 (en) 1998-09-01 1998-09-01 Flat cable terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24705498A JP3625656B2 (en) 1998-09-01 1998-09-01 Flat cable terminal

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Publication Number Publication Date
JP2000077116A JP2000077116A (en) 2000-03-14
JP3625656B2 true JP3625656B2 (en) 2005-03-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107275816A (en) * 2016-03-30 2017-10-20 泰连公司 Interconnect wire and cable connector

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4653065B2 (en) * 2006-12-07 2011-03-16 古河電気工業株式会社 Planar wiring body connection portion processing method and planar wiring body and terminal connection portion
JP5568332B2 (en) * 2010-02-22 2014-08-06 日本圧着端子製造株式会社 Electrical connector
JP2016058354A (en) * 2014-09-12 2016-04-21 古河電気工業株式会社 Connector for flexible flat cable and rotary connector device including the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107275816A (en) * 2016-03-30 2017-10-20 泰连公司 Interconnect wire and cable connector
CN107275816B (en) * 2016-03-30 2020-12-15 泰连公司 Interconnection cable connector

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