JP4190848B2 - Connection between flat cable and connection terminal - Google Patents

Connection between flat cable and connection terminal Download PDF

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Publication number
JP4190848B2
JP4190848B2 JP2002292286A JP2002292286A JP4190848B2 JP 4190848 B2 JP4190848 B2 JP 4190848B2 JP 2002292286 A JP2002292286 A JP 2002292286A JP 2002292286 A JP2002292286 A JP 2002292286A JP 4190848 B2 JP4190848 B2 JP 4190848B2
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Prior art keywords
connection
flat
terminal
flat cable
cut
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JP2004127806A (en
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憲嗣 榎本
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Furukawa Electric Co Ltd
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Furukawa Electric Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、電気機器や自動車等の電気配線に使用されるフラットケーブルと接続端子の接続部及び接続用治具に関するものである。
【0002】
【従来の技術】
電気機器や自動車等の電気配線にフラットケーブルが用いられるようになってきている。このフラットケーブルと接続端子及びフラットケーブルを構成しているフラット導体の相互間の接続方法としては、端子板部の幅方向の両側にクリンプ片を突設したピアス型端子と称するフラットケーブル接続端子が使用されている(例えば、特許文献1参照。)。
【0003】
しかしながら、このような接続方法ではピアス型端子と称するフラットケーブル接続端子を用いなければ接続を行うことができず、またピアス型端子をフラットケーブルに突き刺し、折り曲げて加締めるための特殊な接続治具が必要になり、コスト高になる問題点がある。
【0004】
そこで、出願人は、最近、ピアス型端子を使用せず、より簡単に接続できる圧抜き型の接続方法と呼ばれる接続方法を提案した(例えば、特願2001−342721に基づいて国内優先権主張により出願された特願2002−204387)。
【0005】
この接続方法は、次のようにして行う。
【0006】
図6は本例で用いる接続用治具1の一例を示したものである。この接続用治具1は、一方が山形になった凸状刃2を有する凸状刃型3と、他方が凸状刃2に噛み合う凹状刃4を有する凹状刃型5とからなっている。
【0007】
接続の対象となるフラットケーブル6は、図7に示すように、銅箔帯等よりなるフラット導体7がポリエチレンテレフタレートの如き合成樹脂製のフラット絶縁層8で被覆された構造になっている。
【0008】
このフラットケーブル6のフラット導体7に接続する接続端子9は、雌型の端子本体10に端子板部11が一体に連設された構造になっている。
【0009】
これらフラットケーブル6のフラット導体7に対する接続端子9の接続は、図7に示すように、接続端子9の端子板部11を、フラット導体7にその長手方向に対応させてフラットケーブル6に重ねる。
【0010】
かかる状態で、図6に示す接続用治具1を用いて、端子板部11とフラット導体7との重ね合わせ部12を、下側の凸状刃型3の凸状刃2と上側の凹状刃型5の凹状刃4とで噛み合わせて、図8〜図10に示すように、重ね合わせ部12に2本の相互に平行な切れ目13を入れると共に、平行な切れ目13の間の部分14を凸状刃2の頂部で円弧状に立ち上げて段違い構造にする。かかる状態になると、円弧状に立ち上がった頂部は図9にようになり、フラット導体7は端子板部11に接続されないが、立ち上がり部の両端では図10にようにフラット導体7は端子板部11に接触部15で接触して電気的に接続されている。
【0011】
また、図11に示すように、フラットケーブル6a,6bのフラット導体7a,7bを相互に接続する場合は、接続すべきフラット導体7a,7bが向かい合うようにフラットケーブル6a,6bの端部を突き合わせ、接続すべきフラット導体7a,7bに跨がるように接続端子9の端子板部11をフラットケーブル6a,6bに重ね合わせて重ね合わせ部12を形成する。これらの重ね合わせ部12に図6に示す接続用治具1の下側の凸状刃型3の凸状刃2と上側の凹状刃型5の凹状刃4とで噛み合わせて、図11及び図12に示すように、2本の相互に平行な切れ目13を入れると共に、平行な切れ目13の間の部分14を凸状刃2の頂部で円弧状に立ち上げて段違い構造にし、円弧状に立ち上がった立ち上がり部の両端では図12にようにフラットケーブル6aのフラット導体7aは端子板部11に接触部15で接触して電気的に接続する。同様にして、反対側でも同様な接続を行うと、フラットケーブル6bのフラット導体7bは端子板部11に接触部15で接触して電気的に接続される。これにより、フラットケーブル6a,6bのフラット導体7a,7bが端子板部11を介して相互に接続される。
【0012】
このように圧抜き型の接続方法は、簡単な接続用治具1を用いてフラットケーブル6と端子本体10を有する接続端子9との接続や、フラットケーブル6a,6bのフラット導体7a,7bの相互の接続を行うことができる。
【0013】
【特許文献1】
特開2002−184548号公報(図1)
【0014】
【発明が解決しようとする課題】
しかしながら、上記の如き圧抜き型の接続方法では、フラット導体7,7a,7bと端子板部11の重ね合わせ部12に入れられた2本の相互に平行な切れ目13の端部が、フラットケーブル6,6a,6bにかかる外力に対して機械的な弱点となり、フラット導体7,7a,7bの幅方向の端部と切れ目13との間隔が狭い場合には、フラット導体7,7a,7bが切れ目13から該フラット導体7,7a,7bの幅方向の端部との間で破断してしまう問題点があった。
【0015】
即ち、図13に示すように、フラットケーブル6に矢印で示すような横引っ張りやひねりといった力を受けると、外力を受ける側の切れ目13の端部13aとフラット導体7の幅方向の端部間で該フラット導体7が破断部16で破断してしまう。
【0016】
フラットケーブル6に横引っ張りがかかった場合、切れ目13の端部13aでフラット導体7の破断が起こるのでフラット導体7の幅を狭くすることができない。接続するフラット導体7の幅が狭いほど切れ目13とフラット導体7の幅端との距離が短くなり、フラット導体7の破断の危険性が増加する。
【0017】
本発明の目的は、フラットケーブル外部から横引っ張り等の力を受けた場合、切れ目の端部でフラット導体の破断が起こる危険性を減少させることができるフラットケーブルと接続端子の接続部及び接続用治具を提供することにある。
【0018】
【課題を解決するための手段】
本発明は、フラット導体がフラット絶縁被覆で被覆された一つのフラットケーブルの端末部にフラット導体の箇所で、端子本体に接続板部が一体に設けられた一つの接続端子の接続板部が重ね合わされて重ね合わせ部が形成され、重ね合わせ部に2本の切れ目が入れられて、切れ目の間の部分が円弧状に立ち上げられることにより切れ目の間の部分が切れ目に直交する両側の部分に対して段違いにされ、切れ目の長手方向の両端にフラット導体と接続板部とが相互に接触した電気的な接続部が形成されているフラットケーブルと接続端子の接続部を対象とする。
【0019】
本発明に係るフラットケーブルと接続端子の接続部では、前記2本の切れ目が、端子本体側から見てハの字状を呈するようにフラット導体の長手方向に対して傾斜して設けられていることを特徴とする。
【0020】
上記のようなフラットケーブルと接続端子の接続部において、2本の切れ目がハの字状に傾斜して設けられていると、フラットケーブル外部から横引っ張り等の力を受けた場合、この力は内側に傾斜した切れ目の内側端部に作用するようになり、この切れ目の内側端部でフラット導体の破断が起こる危険性を減少させることができる。
【0021】
【発明の実施の形態】
以下、本発明の実施の形態について、図を参照しつつ説明する。
【0022】
図1(A)(B)は本発明に係るフラットケーブルと接続端子の接続部の実施の形態の第1例と従来のフラットケーブルと接続端子の接続部の平面図を示したものである。
【0023】
本例のフラットケーブルと接続端子の接続部では、図1(A)に示すように、接続端子9の端子板部11とフラットケーブル6のフラット導体7の重ね合わせ部12に、2本の切れ目13が端子本体10側の上部からみてハの字状、即ち端子本体10から遠ざかるに従って、フラット導体7の幅方向の端部からの距離が増加し、切れ目13の端部13aからフラット導体7の幅方向の端部までの距離がL1 になるように入れられている。かかる状態で、切れ目13の間の部分14が、切れ目13の幅方向の両側の部分に対して円弧状に立ち上げられ、段違い構造にされ、切れ目13の長手方向の両端部で端子板部11とフラット導体7とが図10に示すように接触部15で電気的に接続されている。
【0024】
これに対し、従来のフラットケーブルと接続端子の接続部では、図1(B)に示すように、接続端子9の端子板部11とフラットケーブル6のフラット導体7の重ね合わせ部12に、2本の切れ目13が互いに平行に入れられている。この状態では、切れ目13の端部13aからフラット導体7の幅方向の端部までの距離がL2 になっている。かかる状態で、切れ目13の間の部分14が、切れ目13の幅方向の両側の部分に対して円弧状に立ち上げられ、段違い構造にされ、切れ目13の長手方向の両端部で端子板部11とフラット導体7とが図10に示すように接触部15で電気的に接続されている。
【0025】
図2(A)及び(B)は本発明に係るフラットケーブルと接続端子の接続部の実施の形態の第1例の平面図とそのD−D線断面図である。
【0026】
この接続部では、切れ目13の間の部分14はD−D線断面の位置から奥の方を見ると、D−D線断面の位置に近付くにつれて幅が狭くなっている。換言すれば、切れ目13の内側端部13aからフラット導体7の幅方向の端部までの距離L1 は、従来の切れ目13の端部13aからフラット導体7の幅方向の端部までの距離L2 に比べて長くなっている。即ち、L1 >L2 になっている。
【0027】
それゆえ、フラットケーブル6に横引っ張りやひねりといった力を受けると、外力を受ける側の切れ目13の内側端部13aとフラット導体7の幅方向の端部間の距離L1 、従来の距離L2 より大きくなっているので、該フラット導体7が切れ目13の端部13aで破断する危険性を減少させることができる。
【0028】
図3は本発明に係る接続用治具の実施の形態の第1例の斜視図を示したものである。
【0029】
この接続用治具1の凸状刃型3は、その凸状刃2の平面図が台形状をなしていて、この凸状刃2が台形の状態で円弧状に突設されている。
【0030】
また、この接続用治具1の凹状刃型5は、その凹状刃4の平面図が台形状をなしていて、この凹状刃4が台形の状態で円弧状に窪んでいて、凸状刃2が嵌まり合えるようになっている。
【0031】
凸状刃2は、凹状刃4の台形より僅かに小さく相似した台形になっている。
【0032】
このような接続用治具1によれば、凸状刃2と凹状刃4のエッジで重ね合わせ部12にハの字状に切れ目13を入れて、凸状刃2の先端面で切れ目13の間の部分14を円弧状に突き出させて段違い状に構造にし、切れ目13の長手方向の両端部で端子板部11とフラット導体7とを接触部15で電気的に接続することができる。
【0033】
図4(A)(B)はフラットケーブルと接続端子の接続部の参考構成例を示した平面図とそのE−E線断面図である。
【0034】
本例のフラットケーブルと接続端子の接続部では、フラットケーブル6のフラット導体7の箇所で接続端子9の接続板部11が重ね合わされて重ね合わせ部12が形成されている。該重ね合わせ部12に1本の切れ目13がフラットケーブルの長手方向に沿ってフラット導体7の幅方向の一方の端縁部から徐々に離れていくように傾斜して設けられ、該切れ目13に直交する両側の部分が段違いされている。この状態で、切れ目13の長手方向の端部にフラット導体7と接続板部11が相互に接触した電気的な接続部15が形成されている。
【0035】
このようなフラットケーブルと接続端子の接続部でも、第1例と同様の効果を得ることができる。
【0036】
図5は、図4に示したフラットケーブルと接続端子の接続部を形成する接続治具の構成例を示した斜視図である。
【0037】
この接続用治具1は、一方が山形になった凸状刃2を有する凸状刃型3と、他方が凸状刃2に噛み合う凹状刃4を有する凹状刃型5とからなっている点は第1例と同様である。本例では、凸状刃2が片側の直線を境に円弧状に隆起してテーパ形に低くなる凸状の構造になっている。また、凹状刃4は、凸状刃2が嵌まって噛み合える凹状の構造となっている。
【0038】
このような接続用治具1によれば、図4(A)(B)に示すフラットケーブルと接続端子の接続部を容易に形成することができる。
【0039】
なお、本発明で斜めの切れ目13は、フラットケーブル6に外力が加わる側で、フラット導体7の縁部からの距離L1 が最大になるような向きで設けられる。
【0040】
【発明の効果】
本発明に係るフラットケーブルと接続端子の接続部では、切れ目がフラットケーブルの長手方向に沿ってフラット導体の幅方向の一方の端縁部から徐々に離れていくように傾斜して設けられているので、フラットケーブルに外部から横引っ張り等の力を受けた場合、この力は内側に傾斜した切れ目の内側端部に作用するようになり、この切れ目の内側端部でフラット導体の破断が起こる危険性を減少させることができる。
【0041】
また本発明に係るフラットケーブルと接続端子の接続部では、2本の切れ目がハの字状に傾斜して設けられているので、フラットケーブルに外部から横引っ張り等の力を受けた場合、この力は内側に傾斜した切れ目の内側端部に作用するようになり、この切れ目の内側端部でフラット導体の破断が起こる危険性を減少させることができる。
【図面の簡単な説明】
【図1】 (A)(B)は本発明に係るフラットケーブルと接続端子の接続部の実施の形態の第1例と従来のフラットケーブルと接続端子の接続部の平面図を示したものである。
【図2】 (A)(B)は本発明に係るフラットケーブルと接続端子の接続部の実施の形態の第1例の平面図とそのD−D線断面図である。
【図3】 本発明に係る接続用治具の実施の形態の第1例の斜視図である。
【図4】 (A)(B)はフラットケーブルと接続端子の接続部の参考構成例を示した平面図とそのE−E線断面図である。
【図5】 図4に示されたフラットケーブルと接続端子の接続部を形成する接続治具の構成例を示した斜視図である。
【図6】 従来の接続用治具の斜視図である。
【図7】 従来のフラットケーブルと接続端子の接続部の一例の斜視図である。
【図8】 図7のA−A線断面図である。
【図9】 図7のB−B線断面図である。
【図10】 図7のC−C線断面図である。
【図11】 従来のフラットケーブルと接続端子の接続部の他の例の斜視図である。
【図12】 図11のC´−C´線断面図である。
【図13】 従来のフラットケーブルと接続端子の接続部のフラットケーブルに外力が作用した状態を示す斜視図である。
【符号の説明】
1 接続用治具
2 凸状刃
3 凸状刃型
4 凹状刃
5 凹状刃型
6 フラットケーブル
7 フラット導体
8 フラット絶縁層
9 接続端子
10 端子本体
11 端子板部
12 重ね合わせ部
13 切れ目
13a 切れ目の内端部
14 切れ目の間の部分
15 接触部
16 破断部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a flat cable used for electrical wiring of an electric device or an automobile, a connection portion of a connection terminal, and a connection jig.
[0002]
[Prior art]
Flat cables have come to be used for electric wiring of electric devices and automobiles. As a connecting method between the flat cable, the connecting terminal, and the flat conductor constituting the flat cable, there is a flat cable connecting terminal called a pierce-type terminal in which a crimp piece protrudes on both sides in the width direction of the terminal plate portion. (For example, refer to Patent Document 1).
[0003]
However, in such a connection method, connection cannot be performed unless a flat cable connection terminal called a pierce-type terminal is used, and a special connection jig for piercing the pierce-type terminal into the flat cable, bending it, and caulking it Is necessary, and there is a problem that costs increase.
[0004]
Therefore, the applicant has recently proposed a connection method called a pressure-removal connection method that can be connected more easily without using a pierce-type terminal (for example, based on the Japanese priority claim based on Japanese Patent Application No. 2001-342721). Application Japanese Patent Application No. 2002-204387).
[0005]
This connection method is performed as follows.
[0006]
FIG. 6 shows an example of the connecting jig 1 used in this example. The connecting jig 1 is composed of a convex blade mold 3 having a convex blade 2 with one of which is a chevron, and a concave blade mold 5 having a concave blade 4 that meshes with the convex blade 2 on the other side.
[0007]
As shown in FIG. 7, the flat cable 6 to be connected has a structure in which a flat conductor 7 made of a copper foil strip or the like is covered with a flat insulating layer 8 made of a synthetic resin such as polyethylene terephthalate.
[0008]
The connection terminal 9 connected to the flat conductor 7 of the flat cable 6 has a structure in which a terminal plate portion 11 is integrally connected to a female terminal body 10.
[0009]
As shown in FIG. 7, the connection terminal 9 is connected to the flat conductor 7 of the flat cable 6 such that the terminal plate portion 11 of the connection terminal 9 is overlapped with the flat conductor 6 in the longitudinal direction of the flat conductor 7.
[0010]
In this state, using the connecting jig 1 shown in FIG. 6, the overlapping portion 12 of the terminal plate portion 11 and the flat conductor 7 is replaced with the convex blade 2 of the lower convex blade mold 3 and the upper concave shape. As shown in FIGS. 8 to 10, two mutually parallel cuts 13 are made in the overlapping portion 12 and a portion 14 between the parallel cuts 13 is engaged with the concave blade 4 of the blade mold 5. Is raised in an arc shape at the top of the convex blade 2 to form a stepped structure. In this state, the apex that rises in an arc shape is as shown in FIG. 9, and the flat conductor 7 is not connected to the terminal plate portion 11, but the flat conductor 7 is connected to the terminal plate portion 11 at both ends of the rising portion as shown in FIG. Are electrically connected to each other at the contact portion 15.
[0011]
As shown in FIG. 11, when connecting the flat conductors 7a and 7b of the flat cables 6a and 6b to each other, the ends of the flat cables 6a and 6b are butted so that the flat conductors 7a and 7b to be connected face each other. The terminal portion 11 of the connection terminal 9 is overlapped with the flat cables 6a and 6b so as to straddle the flat conductors 7a and 7b to be connected, thereby forming the overlapping portion 12. These overlapping portions 12 are meshed with the convex blade 2 of the lower convex blade mold 3 of the connecting jig 1 shown in FIG. 6 and the concave blade 4 of the upper concave blade mold 5, and FIG. As shown in FIG. 12, two mutually parallel cuts 13 are made, and a portion 14 between the parallel cuts 13 is raised in an arc shape at the top of the convex blade 2 to form a stepped structure. As shown in FIG. 12, the flat conductors 7a of the flat cable 6a are in contact with and electrically connected to the terminal plate part 11 at the contact part 15 at both ends of the rising part that has risen. Similarly, when the same connection is made on the opposite side, the flat conductor 7b of the flat cable 6b is brought into contact with and electrically connected to the terminal plate portion 11 at the contact portion 15. As a result, the flat conductors 7 a and 7 b of the flat cables 6 a and 6 b are connected to each other via the terminal plate portion 11.
[0012]
As described above, the pressure release type connecting method is performed by using the simple connecting jig 1 to connect the flat cable 6 and the connection terminal 9 having the terminal body 10 or the flat conductors 7a and 7b of the flat cables 6a and 6b. Mutual connection can be made.
[0013]
[Patent Document 1]
JP 2002-184548 A (FIG. 1)
[0014]
[Problems to be solved by the invention]
However, in the above-described pressure release type connection method, the ends of the two parallel cuts 13 inserted in the overlapping portion 12 of the flat conductors 7, 7 a, 7 b and the terminal plate portion 11 are flat cables. When the distance between the end portions in the width direction of the flat conductors 7, 7 a, 7 b and the cuts 13 is narrow, the flat conductors 7, 7 a, 7 b There is a problem that the flat conductors 7, 7a, 7b break from the cut line 13 to the widthwise ends.
[0015]
That is, as shown in FIG. 13, when the flat cable 6 is subjected to a force such as lateral pulling or twisting as indicated by an arrow, between the end 13a of the cut 13 on the side receiving the external force and the end of the flat conductor 7 in the width direction. Thus, the flat conductor 7 is broken at the breaking portion 16.
[0016]
When the flat cable 6 is pulled laterally, the flat conductor 7 is broken at the end portion 13a of the cut 13, so that the width of the flat conductor 7 cannot be reduced . The narrower the width of the flat conductor 7 to be connected, the shorter the distance between the cut 13 and the width end of the flat conductor 7, and the risk of breakage of the flat conductor 7 increases.
[0017]
An object of the present invention, when the flat cable is subjected to forces such as transverse tensile externally connecting portion of the flat cable and the connection terminal that can reduce the risk of breakage of the flat conductor occurs at the end of the cut and It is to provide a connecting jig.
[0018]
[Means for Solving the Problems]
The present invention, in place of the flat conductor to the terminal portion of one flat cable flat conductor is covered with flat insulating coating, connecting plate portion to the terminal main body is connecting plate portion of the one connecting terminal provided integrally superposed An overlapped portion is formed, two cuts are made in the overlapped portion, and the portion between the cuts is raised in an arc shape so that the portion between the cuts is formed on both sides perpendicular to the cut. On the other hand, it is intended for a connection portion of a flat cable and a connection terminal that are stepped and have an electrical connection portion in which the flat conductor and the connection plate portion are in contact with each other at both ends in the longitudinal direction of the cut.
[0019]
In the connection portion between the flat cable and the connection terminal according to the present invention, the two cuts are provided so as to be inclined with respect to the longitudinal direction of the flat conductor so as to exhibit a C shape when viewed from the terminal body side . It is characterized by that.
[0020]
In connection portion of the flat cable and the connection terminal as described above, when two cuts are provided inclined in the form of a slanted roof when the flat cable is subjected to forces such as transverse tensile externally, this force Acts on the inner end of the inwardly inclined cut, and the risk of breakage of the flat conductor at the inner end of the cut can be reduced .
[0021]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0022]
1A and 1B show a first example of an embodiment of a connection portion between a flat cable and a connection terminal according to the present invention and a plan view of a connection portion between a conventional flat cable and a connection terminal.
[0023]
In the connecting portion between the flat cable and the connecting terminal of this example, as shown in FIG. 1A, two cuts are formed in the overlapping portion 12 of the terminal plate portion 11 of the connecting terminal 9 and the flat conductor 7 of the flat cable 6. 13 , the distance from the end in the width direction of the flat conductor 7 increases as the distance from the terminal main body 10 increases. The distance to the end in the width direction is set to L1. In such a state, the portions 14 between the cuts 13 are raised in an arc shape with respect to the portions on both sides in the width direction of the cuts 13 to form a stepped structure, and the terminal plate portions at both ends in the longitudinal direction of the cuts 13 11 and the flat conductor 7 are electrically connected by a contact portion 15 as shown in FIG.
[0024]
On the other hand, in the connecting portion between the conventional flat cable and the connecting terminal, as shown in FIG. 1B, the terminal plate portion 11 of the connecting terminal 9 and the overlapping portion 12 of the flat conductor 7 of the flat cable 6 are Book breaks 13 are parallel to each other . In this state, the distance from the end 13a of the cut 13 to the end in the width direction of the flat conductor 7 is L2. In this state, the portions 14 between the cuts 13 are raised in an arc shape with respect to the portions on both sides in the width direction of the cuts 13 to form a stepped structure, and the terminal plate portion 11 is formed at both ends in the longitudinal direction of the cuts 13. And the flat conductor 7 are electrically connected at the contact portion 15 as shown in FIG.
[0025]
2A and 2B are a plan view of a first example of a connection portion between a flat cable and a connection terminal according to the present invention, and a cross-sectional view taken along the line D-D.
[0026]
In this connection part, when the part 14 between the cut | interruptions 13 sees the back from the position of a DD line cross section, the width | variety becomes narrow as it approaches the position of a DD line cross section. In other words, the distance L1 from the inner end 13a of the cut 13 to the end of the flat conductor 7 in the width direction is equal to the distance L2 from the end 13a of the conventional cut 13 to the end of the flat conductor 7 in the width direction. It is longer than that. That is, L1> L2.
[0027]
Therefore, when subjected to a force such as transverse tensile or twisting the flat cable 6, the distance L1 between the width direction of the end portion of the inner end portion 13a and the flat conductor 7 side of cut 13 to receive the external force, than the conventional distance L2 Since it is large, the risk that the flat conductor 7 breaks at the end 13a of the cut 13 can be reduced.
[0028]
FIG. 3 is a perspective view of a first example of the embodiment of the connecting jig according to the present invention.
[0029]
The convex blade mold 3 of the connecting jig 1 has a trapezoidal plan view of the convex blade 2, and the convex blade 2 protrudes in an arc shape in a trapezoidal state.
[0030]
Further, the concave blade mold 5 of the connecting jig 1 has a trapezoidal plan view of the concave blade 4, and the concave blade 4 is recessed in an arc shape in a trapezoidal state. Can fit together.
[0031]
The convex blade 2 has a trapezoidal shape that is slightly smaller than the trapezoid of the concave blade 4.
[0032]
According to such a connecting jig 1, a cut 13 is formed in the overlap portion 12 at the edge of the convex blade 2 and the concave blade 4, and the cut 13 is formed on the tip surface of the convex blade 2. The intermediate portion 14 protrudes in an arc shape to form a stepped structure, and the terminal plate portion 11 and the flat conductor 7 can be electrically connected by the contact portion 15 at both longitudinal ends of the cut line 13.
[0033]
4A and 4B are a plan view and a cross-sectional view taken along line E-E showing a reference configuration example of a connection portion between a flat cable and a connection terminal.
[0034]
In the connection portion between the flat cable and the connection terminal in this example, the connection plate portion 11 of the connection terminal 9 is overlapped at the location of the flat conductor 7 of the flat cable 6 to form an overlap portion 12. A single cut 13 is provided in the overlapping portion 12 so as to be gradually separated from one edge in the width direction of the flat conductor 7 along the longitudinal direction of the flat cable. The parts on both sides perpendicular to each other are stepped. In this state, an electrical connection portion 15 in which the flat conductor 7 and the connection plate portion 11 are in contact with each other is formed at the end of the cut 13 in the longitudinal direction.
[0035]
Even in such a connection portion between the flat cable and the connection terminal, the same effect as in the first example can be obtained.
[0036]
FIG. 5 is a perspective view illustrating a configuration example of a connection jig that forms a connection portion between the flat cable and the connection terminal illustrated in FIG. 4 .
[0037]
The connecting jig 1 is composed of a convex blade mold 3 having a convex blade 2 with one side being chevron and a concave blade mold 5 having a concave blade 4 meshing with the convex blade 2 on the other side. Is the same as in the first example. In this example, the convex blade 2 has a convex structure that rises in an arc shape with a straight line on one side as a boundary and becomes lower in a tapered shape. Moreover, the concave blade 4 has a concave structure in which the convex blade 2 can be fitted and meshed.
[0038]
According to such a connecting jig 1, the connecting portion between the flat cable and the connecting terminal shown in FIGS. 4A and 4B can be easily formed.
[0039]
In the present invention, the oblique cut 13 is provided on the side where an external force is applied to the flat cable 6 so that the distance L1 from the edge of the flat conductor 7 is maximized .
[0040]
【The invention's effect】
In the connecting portion between the flat cable and the connecting terminal according to the present invention , the cut is provided so as to be gradually separated from one end edge in the width direction of the flat conductor along the longitudinal direction of the flat cable. Therefore, when the flat cable is subjected to a force such as lateral pull from the outside, this force will act on the inner end of the slit inclined inward, and the flat conductor may break at the inner end of the cut. Sex can be reduced.
[0041]
Further, in the connection portion between the flat cable and the connection terminal according to the present invention, since the two cuts are provided inclining in the shape of a letter C, when the flat cable receives a force such as lateral pulling from the outside, The force is applied to the inner end of the inwardly inclined cut, and the risk of the flat conductor breaking at the inner end of the cut can be reduced.
[Brief description of the drawings]
1A and 1B show a first example of an embodiment of a connecting portion between a flat cable and a connecting terminal according to the present invention and a plan view of a connecting portion between a conventional flat cable and a connecting terminal. is there.
FIGS. 2A and 2B are a plan view of a first example of a connection portion between a flat cable and a connection terminal according to the present invention, and a cross-sectional view taken along line DD in FIG.
FIG. 3 is a perspective view of a first example of an embodiment of a connection jig according to the present invention.
FIGS. 4A and 4B are a plan view and a cross-sectional view taken along line EE showing a reference configuration example of a connection portion between a flat cable and a connection terminal, respectively.
5 is a perspective view illustrating a configuration example of a connection jig that forms a connection portion between the flat cable and the connection terminal illustrated in FIG . 4 ; FIG.
FIG. 6 is a perspective view of a conventional connecting jig.
FIG. 7 is a perspective view of an example of a connection portion between a conventional flat cable and a connection terminal.
8 is a cross-sectional view taken along line AA in FIG.
9 is a cross-sectional view taken along line BB in FIG.
10 is a cross-sectional view taken along the line CC of FIG.
FIG. 11 is a perspective view of another example of a connection portion between a conventional flat cable and a connection terminal.
12 is a cross-sectional view taken along line C′-C ′ of FIG.
FIG. 13 is a perspective view showing a state in which an external force is applied to a flat cable at a connection portion between a conventional flat cable and a connection terminal.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Connection jig 2 Convex blade 3 Convex blade type 4 Concave blade 5 Concave blade type 6 Flat cable 7 Flat conductor 8 Flat insulating layer 9 Connection terminal 10 Terminal body 11 Terminal board part 12 Overlapping part 13 Cut 13a Cut Inner end part 14 Part between cuts 15 Contact part 16 Broken part

Claims (1)

フラット導体がフラット絶縁被覆で被覆された一つのフラットケーブルの端末部に前記フラット導体の箇所で、端子本体に接続板部が一体に設けられた一つの接続端子の前記接続板部が重ね合わされて重ね合わせ部が形成され、前記重ね合わせ部に2本の切れ目が入れられて、前記切れ目の間の部分が円弧状に立ち上げられることにより前記切れ目の間の部分が前記切れ目に直交する両側の部分に対して段違いにされ、前記切れ目の長手方向の両端に前記フラット導体と前記接続板部とが相互に接触した電気的な接続部が形成されているフラットケーブルと接続端子の接続部において、The connection plate portion of one connection terminal in which the connection plate portion is integrally provided on the terminal body is superimposed on the terminal portion of the flat cable in which the flat conductor is covered with a flat insulating coating. An overlap portion is formed, two cuts are made in the overlap portion, and a portion between the cuts is raised in an arc shape so that the portion between the cuts is on both sides orthogonal to the cut. In the connection part of the flat cable and the connection terminal, which is stepped with respect to the part and formed with an electrical connection part where the flat conductor and the connection plate part are in contact with each other at both ends in the longitudinal direction of the cut,
前記2本の切れ目は、前記端子本体側から見てハの字状を呈するように前記フラット導体の長手方向に対して傾斜して設けられていることを特徴とするフラットケーブルと接続端子の接続部。The connection between the flat cable and the connection terminal, wherein the two cuts are provided so as to be inclined with respect to the longitudinal direction of the flat conductor so as to exhibit a square shape when viewed from the terminal body side. Department.
JP2002292286A 2002-10-04 2002-10-04 Connection between flat cable and connection terminal Expired - Fee Related JP4190848B2 (en)

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JP4190848B2 true JP4190848B2 (en) 2008-12-03

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JP2008135386A (en) * 2006-11-01 2008-06-12 Furukawa Electric Co Ltd:The Method of connecting planar wiring body with terminal

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