JP3789073B2 - Flexible conductor connector - Google Patents

Flexible conductor connector Download PDF

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Publication number
JP3789073B2
JP3789073B2 JP2000274820A JP2000274820A JP3789073B2 JP 3789073 B2 JP3789073 B2 JP 3789073B2 JP 2000274820 A JP2000274820 A JP 2000274820A JP 2000274820 A JP2000274820 A JP 2000274820A JP 3789073 B2 JP3789073 B2 JP 3789073B2
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housing
lock
terminal
lock arm
flexible
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JP2002093526A (en
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敏郎 前島
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Yazaki Corp
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Yazaki Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、電子機器に実装されるフレキシブルプリント回路(FPC)基板やフレキシブルフラットケーブル(FFC)など、可撓性平型のフレキシブル導体を電気的に接続するコネクタに関する。
【0002】
【従来の技術】
従来、複数のターミナル端子などを圧入して内蔵するコネクタハウジングに対し、フレキシブル導体を挿入して端子との電気的導通を図るコネクタにあっては、接続部の信頼性を高めるために接点における圧接力を強化する様々な構造が提案されている。一般には、ばねの弾撥力を利用して接点の圧接力を高めるといった構造が周知であるが、スライダと呼ばれる第3の部材を別に設けて、フレキシブル導体の接続端にそのスライダをあてがうようにしてコネクタ内に押し込み、スライダの押圧力でフレキシブル導体の接続端をハウジング内の各端子に接続させた接点の圧接力を強化する構造のスライダ式コネクタも多く提案されている。
【0003】
図5において、スライダ式コネクタの従来例として多数あるなかで、代表的に特開平9−63719号公報に記載されたものを概略的に説明する。この場合、コネクタ本体のハウジング30の内部に多数の端子31が内蔵されている。ハウジング30には仮結合状態でつながったスライダ32が付帯している。かかる構造のコネクタのハウジング30に一側の挿入口からフレキシブル導体であるFPC33を挿入して端子31に接続させる。挿入時、スライダ32をそのFPC33にあてがうようにしてハウジング30内に押し込むと、スライダ32の押圧力でFPC33の導体端部をハウジング30内の各端子31に強固に圧接する構造である。
【0004】
【発明が解決しようとする課題】
しかしながら、この図5を代表例とするように、従来のスライダ式コネクタには次の共通した問題点がある。
【0005】
1つは、FPC33をハウジング30に挿入して接続後、FPC33にハウジング30から離脱させるような逆挿入方向の引張力などが働いた場合、端子31との接点がずれたり、ときには接点が完全に分離することがあり、配線系の信頼性を低下させる不具合がある。
【0006】
さらに、問題点の1つとして、ハウジング30内には多数の端子31が圧入して設けてあるが、その端子圧入力でハウジング30が膨らんで変形する場合がある。それを防止するため、たとえば実開昭61−129286号公報に記載の可撓基板用電気コネクタでは、箱型としたスライダでハウジング全体を被う構造とし、端子圧入力でハウジングが変形しないように保護を図っている。しかし、この場合、ハウジング変形防止の目的だけでハウジングを箱形のスライダで被覆するというのでは、コネクタ全体が無用に大型化してしまう不都合がある。
【0007】
したがって、本発明の目的は、コネクタへの接続後に接点ずれなどを防止して配線系の信頼性を高めることができるFPCなどのフレキシブル導体を接続して電気的導通を図るにあたり、ハウジングの大型化を避けてコンパクト化を実現するとともに、収容端子の圧入でハウジングが変形するのを防止できるフレキシブル導体の接続コネクタを提供することにある。
【0009】
【課題を解決するための手段】
上記目的を達成するために、本発明にかかる請求項1に記載のフレキシブル導体の接続コネクタは、樹脂フィルム上に導体金属で回路パターンが形成された可撓性を有する撓み基板6をベースとし、該撓み基板6の接続端の非導通面側に補強板7を接着接合し、該補強板7の先端部に肉厚を厚く成形したロック凸部7aを形成してなるフレキシブル導体5と,底板部10a,天板部10bおよび両側板からなる内部空洞の筐体を有し、該筐体の内部に複数の端子4を圧入保持したハウジング2を有し、前記筐体の正面一側に前記フレキシブル導体5を先端の接続端から挿入する挿入口11を形成してなり、前記底板部10aには、前記挿入口側11から上りテーパによるガイド傾斜面12が形成され、該ガイド傾斜面12の後方部に前記端子4のタブ部4aの先端を突き当て規制して位置決めする規制段部13が段差形成されており、前記天板部10bには、筐体内面15側に端子4を圧入し面一となし、筐体外面側の前記挿入口11の近傍に仮結合状態にする係止凸部16が突設され、該係止凸部16の後方に本結合用のロック凸部17が突設されてなるハウジング2と,側面からみて略U字形状に樹脂成形され、折り返すUターン基部22から一側に第1のロック腕部20が、他側に第2のロック腕部21が形成され、該第1及び第2のロック腕部間20,21に前記ハウジング2側の天板部10bを挟んで挟持可能に形成し、前記第1のロック腕部20は、その内面15で前記端子4のタブ部4aを前記第2のロック腕部21と協働して保持すると共に、先端部の外側に段差を形成し前記ロック凸部7aが係合する対導体用ロック段部23を設け、前記第2のロック腕部21は、前記Uターン基部22に向かって肉厚を漸次厚く形成し、その内側で幅方向の中央部から1つの係合溝24を形成すると共に、該係合溝24を前記ハウジング2側の天板部10b上面に設けた前記仮結合用の係止凸部17に係合させて、前記ハウジング2に仮結合状態にするロック部材3とを備え,
前記ハウジング2の一側の挿入口11から前記フレキシブル導体5を挿入した後、前記ハウジング2に仮結合状態で付帯させたスライド嵌挿式の前記ロック部材3をスライドさせて、前記端子4に前記フレキシブル導体5を圧接させて接続することを特徴とする。
【0012】
以上の構成により、ハウジング2内には複数の端子4が圧入して保持されているが、その端子4の圧入力でハウジング2に膨らみなどの変形が生じようとする。その際、ロック部材3をハウジング2に嵌挿して本結合状態のロック状態にすると、ロック部材3の一側と他側のロック腕部20,21が協働してハウジング2側の天板部10bを内外から挟んで保持する。他側のロック腕部21は根元にゆくほど肉厚を大きくして剛性を高めているので、そのように端子圧入力でハウジング2側の天板部10bが膨らんで変形しようとするのを他側のロック腕部21でもって外側から押さえて抑止する。また、ロック部材3を嵌挿させることによって、ハウジング2内の端子4に接続しているフレキシブル導体に対しても、ロック部材3の対導体用ロック段部23でロック状態にすると同時に、ロック部材3自体を対ハウジング用ロック段部27でもってハウジング2に対し、それまでの仮結合状態から本結合されたロック状態にする。
【0015】
【発明の実施の形態】
以下、本発明にかかるフレキシブル導体およびその接続コネクタの実施の形態について図面を参照して詳細に説明する。
【0016】
図1は、本例のコネクタ1と、これに接続されるフレキシブル導体の具体例であるFPC5との取り合いを示す組立斜視図、図2は図1中の矢印A−A線からの側面断面図であり、また図3は分解斜視図である。
【0017】
はじめに、この場合のFPC5は、樹脂フィルム上にCuなどの導体金属で回路パターンが形成された可撓性を有する撓み基板6をベースとし、この撓み基板6の接続端の非導通面側に重ねて樹脂製の補強板7が接着接合されている。補強板7の先端部は肉厚を厚く成形したロック凸部7aとなっていて、そこはコネクタ1に挿入して接続後にFPC5が逆挿入方向へ移動したり、極端には離脱して抜けたりするのをロックして防止する要部となっている。
【0018】
そうしたFPC5との電気的導通を図るコネクタ1は、その本体である樹脂製のハウジング2と、このハウジング2に仮結合状態で付帯しているスライダ嵌挿式のロック部材3を主要部として構成されている。
【0019】
ハウジング2は、樹脂成形された底板部10aと天板部10bと両側板からなる内部空洞の筐体であり、その内部空洞に図示のごとき形状のターミナル端子などの複数の端子4が横並びに圧入して保持収容されている。そうした筐体の正面一側は、FPC5を先端の接続端から挿入する挿入口11となっている。
【0020】
その底板部10aにおいては、挿入口11側から上りテーパによるガイド傾斜面12が形成され、ガイド傾斜面12の後方部に規制段部13が段差形成されている。ガイド傾斜面12は挿入口11から挿入されるFPC5をハウジング内部に案内し、また規制段部13は端子4のタブ部4aの先端を突き当て規制して位置決めする部分となっている。
【0021】
また、天板部10bは、その内面15に端子4が圧入されて面一となっており、次に説明するロック部材3を嵌挿して係合させる部分となっている。そうした天板部10bの外部上面で挿入口11の近傍に、ロック部材3を仮結合状態にしている1つの係止凸部16が突設され、さらにその係止凸部16の後方に2つの本結合用のロック凸部17,17が突設されている。
【0022】
次に、かかるハウジング2の天板部10bに仮結合状態で付帯するロック部材3は、側面からみて略U字形状に樹脂成形され、その折り返すUターン基部22から一側がロック腕部20として形成され、他側がロック腕部21として形成されている。これら両ロック腕部間のスペースは係合間隙26として形成され、上記ハウジング2側の天板部10bを内面と外面の両面から挟んで挟持できる隙間寸法に設定されている。一側のロック腕部20は、その内面で上記端子4のタブ部4aを他側のロック腕部21と協働して保持できるようになっており、またその先端部の外側に段差形成した対導体用ロック段部23が設けられ、この対導体用ロック段部23に上記フレキシブル導体5に設けたロック凸部7aが係合するようになっている。
【0023】
また、他側のロック腕部21においては、Uターン基部22に向かって肉厚を漸次厚くして、樹脂特有の強力な弾性力やその反力が得られる剛性強度を備えさせている。そうした他側のロック腕部21の内側で幅方向の中央部から1つの係合溝24が形成され、この係合溝24をハウジング2側の天板部10b上面に設けた上記仮結合用の係止凸部16に係合させて、ロック部材3そのものをハウジング2に仮結合状態にしている。また、係合溝24を挟む両側にさらに2つの係合溝25,25が形成され、これら両係合溝25,25をハウジング2側の天板部10b上面に設けた上記本結合用のロック凸部17,17に係合させるようになっている。その両係合溝25の終端、つまりロック腕部21の先端部はロック段部27となっていて、ハウジング2側の本結合用の上記ロック凸部17,17に乗り越えて係合できるようになっている。
【0024】
以上の構成により、本実施の形態のFPC5と接続コネクタ1にあっては次のように接続して作用する。
【0025】
図2に示すように、FPC5の装着前は、コネクタ1のハウジング2に対してロック部材3が仮結合状態で付帯している。すなわち、ハウジング2の天板部10b上面の仮結合用の係止凸部16にロック部材3側のロック腕部21がその内側の係合溝24を係合させた状態で仮結合されている。
【0026】
そうしたコネクタ1の一側の挿入口11から、FPC5の接続端を挿入して嵌挿させる。図4(a)に示すように、FPC5を完全にハウジング2の内部に挿入して端子4に当接させると、FPC5の撓み基板6の導通面が端子4のタブ部4aに接触する。
【0027】
続いて、図4(b)に示すように、仮結合状態のロック部材3をFPC挿入方向と同一の方向からハウジング2に押し込むようにして嵌挿させる。押し込みの際、ロック部材3のロック腕部20はその外面でFPC5の撓み基板6の非導通面側をあてがうようにして嵌挿される。そこまでの段階において、撓み基板6のハウジング2内への挿入が不十分であれば、ロック部材3のロック腕部20をあてがって嵌挿させる摩擦力でもってその不完全挿入状態の撓み基板6をさらにハウジング2内に押し込む。なおかつロック腕部20の嵌挿で、やがてはそのロック腕部20側の先端部の対導体用ロック段部23が撓み基板6側の補強板7上のロック凸部7aに後方から当接し、撓み基板6の接続端をハウジング2内の奥の所定位置まで押し込み、端子4に圧接させて電気的導通状態にする。
【0028】
そのように図の左方向から右方向へロック部材3を嵌挿させることにより、ロック腕部20の対導体用ロック段部23を前進させてFPC5側のロック凸部7aを押し込み、撓み基板6の導通面が完全にハウジング2内の端子4に接続すると、同図4(b)に示すように、その段階でロック部材3側の他側のロック腕部21では、先端の本結合用のロック段部27がハウジング側天板部10bの上面のロック凸部17,17を乗り越えて係合する。すなわち、ハウジング2に対してロック部材3がロック状態に本結合する。
【0029】
ロック部材3がハウジング2にロックされると、そのハウジング2の天板部10bが端子4の圧入によって膨れて変形しようとするのを、ロック部材3側のロック腕部21が外側から押さえて抑止する。ロック腕部21はUターン基部22側へ肉厚を大きく剛性強化しているので、そうしたハウジング2側の天板部10bの弾性変形を抑えることができる。
【0030】
かかる図4(b)に示す状態において、FPC5はその先端の接続端における補強板7上のロック凸部7aにロック部材3側の対導体用ロック段部27が後方から当接して係合することで、逆挿入方向へのずれや抜けが制止され、ハウジング2内の端子4との接点ずれや離脱を防止して、電気系としての信頼性を確保することができる。
【0031】
【発明の効果】
以上説明したように、本発明にかかる請求項1に記載のフレキシブル導体の接続コネクタは、ハウジング内に複数の端子を圧入して収容することにより、ハウジングに膨らみなどの変形が生じようとするが、U字形状のロック部材を嵌挿してハウジングの変形を防止し、またロック部材を嵌挿してその体導体用ロック段部でハウジング内の端子に接続しているフレキシブル導体をロック状態にすると同時に、ロック部材自体はその対ハウジング用ロック段部においてハウジングに対してそれまでの仮結合状態から本結合されたロック状態にすることができる。また、ハウジングでは、その内部に複数の端子を圧入すると、その端子圧入力で特にハウジング側の天板部が内側から膨らんで変形しようとするが、ロック部材をハウジングに嵌挿して本結合状態のロック状態にすることで、他側のロック腕部が一側のロック腕部と協働してハウジング側の天板部を内外から挟んで保持してハウジング側の変形を防止する。その際、他側のロック腕部は根元ほど肉厚を大きくして剛性を高めているので、そのように端子圧入力でハウジング側の天板部が膨らんで変形しようとするのを他側のロック腕部でもって外側から押さえて抑止できる。
【図面の簡単な説明】
【図1】本発明にかかる実施の形態によるFPCと接続コネクタとの挿入態様を示す斜視図である。
【図2】図1のA−A線断面図である。
【図3】本実施の形態の分解斜視図である。
【図4】同図(a),(b)は、FPC挿入後でロック部材をコネクタ側ハウジングに嵌挿する前の仮結合状態を示す側面断面図と、そのロック部材を嵌挿してコネクタハウジングにロックにした本結合状態を示す側面断面図である。
【図5】従来例のスライダ式コネクタを示す側面断面図である。
【符号の説明】
1 接続コネクタ
2 ハウジング
3 ロック部材
4 端子
5 FPC(フレキシブル導体)
6 撓み基板
7 補強板
7a ロック凸部
10a ハウジングの底板部
10b ハウジングの天板部
11 挿入口
13 端子規制段部
16 仮結合用の係止凸部
17 本結合用のロック凸部
20 一側のロック腕部
21 他側のロック腕部
23 対導体用ロック段部
24,25 係合溝
27 対ハウジング用ロック段部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connector for electrically connecting a flexible flat flexible conductor such as a flexible printed circuit (FPC) board or a flexible flat cable (FFC) mounted on an electronic device.
[0002]
[Prior art]
Conventionally, in a connector housing in which a plurality of terminal terminals are press-fitted into a built-in connector housing, a flexible conductor is inserted to achieve electrical continuity with the terminal. Various structures have been proposed to enhance power. In general, a structure is known in which the contact pressure of a contact is increased by utilizing the elastic force of a spring, but a third member called a slider is provided separately so that the slider is attached to the connection end of the flexible conductor. Many slider-type connectors have been proposed that have a structure in which the pressure contact force of a contact that is pushed into the connector and the connection end of the flexible conductor is connected to each terminal in the housing by the pressing force of the slider.
[0003]
In FIG. 5, among a number of conventional slider-type connectors, a typical one described in Japanese Patent Laid-Open No. 9-63719 will be schematically described. In this case, a large number of terminals 31 are built in the housing 30 of the connector body. A slider 32 connected to the housing 30 in a temporarily coupled state is attached. The FPC 33, which is a flexible conductor, is inserted into the connector housing 30 having such a structure from the insertion port on one side and connected to the terminal 31. At the time of insertion, when the slider 32 is pushed into the housing 30 so as to be applied to the FPC 33, the conductor end of the FPC 33 is firmly pressed against each terminal 31 in the housing 30 by the pressing force of the slider 32.
[0004]
[Problems to be solved by the invention]
However, as shown in FIG. 5 as a representative example, the conventional slider connector has the following common problems.
[0005]
First, after inserting and connecting the FPC 33 to the housing 30, when a tensile force in the reverse insertion direction that causes the FPC 33 to be detached from the housing 30 is applied, the contact with the terminal 31 is displaced, and sometimes the contact is completely There is a problem that it may be separated and the reliability of the wiring system is lowered.
[0006]
Furthermore, as one of the problems, a large number of terminals 31 are press-fitted and provided in the housing 30, but the housing 30 may swell and deform when the terminal pressure is input. In order to prevent this, for example, in the electrical connector for flexible substrates described in Japanese Utility Model Laid-Open No. 61-129286, the housing is covered with a box-shaped slider so that the housing is not deformed by terminal pressure input. We are trying to protect it. However, in this case, if the housing is covered with a box-shaped slider only for the purpose of preventing deformation of the housing, there is a disadvantage that the entire connector becomes unnecessarily large.
[0007]
Therefore, purpose is the present invention, when connecting a flexible conductor, such as a FPC which it is possible to prevent such as contact displacement after connecting to the connector increasing the reliability of the wiring system establishing electrical continuity, a large housing An object of the present invention is to provide a flexible conductor connection connector that can be made compact by avoiding the downsizing and can prevent the housing from being deformed by press-fitting the receiving terminal .
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the flexible conductor connector according to claim 1 of the present invention is based on a flexible flexible substrate 6 having a circuit pattern formed of a conductive metal on a resin film. A flexible conductor 5 formed by bonding a reinforcing plate 7 to the non-conductive surface side of the connection end of the flexible substrate 6 and forming a lock convex portion 7a formed thick at the tip of the reinforcing plate 7, and a bottom plate A housing 10 having an internal cavity composed of a portion 10a, a top plate portion 10b, and both side plates, a housing 2 in which a plurality of terminals 4 are press-fitted and held inside the housing, An insertion port 11 for inserting the flexible conductor 5 from the connecting end at the tip is formed. A guide inclined surface 12 is formed on the bottom plate portion 10a by an upward taper from the insertion port side 11, and the guide inclined surface 12 The terminal at the rear A regulation step portion 13 is formed so that the tip end of the tab portion 4a is abutted and regulated, and the terminal 4 is press-fitted into the casing inner surface 15 side to be flush with the top plate portion 10b. A housing in which a locking projection 16 for temporarily coupling is provided in the vicinity of the insertion port 11 on the outer surface side, and a locking projection 17 for main connection is provided behind the locking projection 16. 2, the first lock arm portion 20 is formed on one side from the U-turn base portion 22 that is folded back, and the second lock arm portion 21 is formed on the other side. And the second lock arm portion 20, 21 is formed so as to be sandwiched between the top plate portion 10 b on the housing 2 side, and the first lock arm portion 20 has a tab portion of the terminal 4 on its inner surface 15. 4a is held in cooperation with the second lock arm portion 21, and a step is formed outside the tip portion. An anti-conductor lock step portion 23 is formed and engaged with the lock convex portion 7a, and the second lock arm portion 21 is formed so as to gradually increase in thickness toward the U-turn base portion 22. One engaging groove 24 is formed from the central portion in the width direction, and the engaging groove 24 is engaged with the temporarily protruding locking projection 17 provided on the top surface of the top plate 10b on the housing 2 side. And a lock member 3 for temporarily connecting to the housing 2,
After the flexible conductor 5 is inserted from the insertion port 11 on one side of the housing 2, the slide fitting type locking member 3 attached to the housing 2 in a temporarily coupled state is slid, and the terminal 4 is moved to the terminal 4. The flexible conductor 5 is pressed and connected .
[0012]
With the above configuration, the plurality of terminals 4 are press-fitted and held in the housing 2, but deformation such as swelling occurs in the housing 2 due to the pressure input of the terminals 4. At this time, when the lock member 3 is inserted into the housing 2 to be in the locked state in the fully coupled state, the one side of the lock member 3 and the lock arm portions 20 and 21 on the other side cooperate to provide a top plate portion on the housing 2 side. 10b is held between the inside and outside. Since the lock arm portion 21 on the other side is thickened to increase the rigidity toward the root, the top plate portion 10b on the housing 2 side is swelled and deformed by terminal pressure input. The lock arm 21 on the side is pressed from the outside to suppress it. Further, by inserting the lock member 3, the flexible conductor connected to the terminal 4 in the housing 2 is also locked by the counter-conductor lock step 23 of the lock member 3, and at the same time, the lock member 3 itself is brought into the locked state in which the housing 2 is finally coupled to the housing 2 by the lock step 27 for the housing from the temporarily coupled state.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of a flexible conductor and its connection connector according to the present invention will be described below in detail with reference to the drawings.
[0016]
FIG. 1 is an assembled perspective view showing the connection between the connector 1 of this example and an FPC 5 which is a specific example of a flexible conductor connected thereto, and FIG. 2 is a side cross-sectional view taken along the line AA in FIG. 3 is an exploded perspective view.
[0017]
First, the FPC 5 in this case is based on a flexible flexible substrate 6 in which a circuit pattern is formed of a conductive metal such as Cu on a resin film, and is superimposed on the non-conductive surface side of the connection end of the flexible substrate 6. A resin reinforcing plate 7 is adhesively bonded. The front end of the reinforcing plate 7 is a lock convex portion 7a formed with a large thickness, and the FPC 5 moves in the reverse insertion direction after being inserted into the connector 1 and connected, or it is detached and pulled out extremely. It is the main part that locks and prevents it.
[0018]
A connector 1 that achieves electrical continuity with the FPC 5 includes a resin housing 2 that is a main body of the connector 1 and a slider-fitting lock member 3 that is attached to the housing 2 in a temporarily coupled state. ing.
[0019]
The housing 2 is an internal cavity housing composed of a resin-molded bottom plate portion 10a, a top plate portion 10b, and both side plates, and a plurality of terminals 4 such as terminal terminals having a shape as shown in the figure are horizontally and press-fitted into the internal cavity. It is held and accommodated. One side of the front surface of the housing is an insertion port 11 into which the FPC 5 is inserted from the connecting end at the tip.
[0020]
In the bottom plate portion 10 a, a guide inclined surface 12 is formed by an upward taper from the insertion port 11 side, and a regulation step portion 13 is formed on the rear portion of the guide inclined surface 12. The guide inclined surface 12 guides the FPC 5 inserted from the insertion port 11 into the housing, and the regulation step portion 13 is a portion that abuts and regulates the tip of the tab portion 4 a of the terminal 4.
[0021]
Further, the top plate portion 10b is flush with the terminal 4 being press-fitted into the inner surface 15 thereof, and is a portion to be fitted and engaged with a lock member 3 described below. In the vicinity of the insertion port 11 on the outer upper surface of such a top plate portion 10b, one locking convex portion 16 that temporarily locks the lock member 3 is projected, and further, two locking projections 16 are provided behind the locking convex portion 16. Locking projections 17 and 17 for the main connection are projected.
[0022]
Next, the lock member 3 attached to the top plate portion 10b of the housing 2 in a temporarily coupled state is resin-molded in a substantially U shape when viewed from the side surface, and one side is formed as a lock arm portion 20 from the folded U-turn base portion 22. The other side is formed as a lock arm portion 21. The space between the two lock arm portions is formed as an engagement gap 26, and is set to a clearance dimension that allows the top plate portion 10b on the housing 2 side to be sandwiched from both the inner surface and the outer surface. The lock arm portion 20 on one side can hold the tab portion 4a of the terminal 4 in cooperation with the lock arm portion 21 on the other side on the inner surface, and a step is formed on the outer side of the tip portion. A lock step 23 for the conductor is provided, and the lock protrusion 7 a provided on the flexible conductor 5 is engaged with the lock step 23 for the conductor.
[0023]
Further, the lock arm portion 21 on the other side is gradually increased in thickness toward the U-turn base portion 22 so as to have a rigid strength capable of obtaining a strong elastic force unique to the resin and its reaction force. One engagement groove 24 is formed from the central portion in the width direction inside the lock arm portion 21 on the other side, and the engagement groove 24 is provided on the upper surface of the top plate portion 10b on the housing 2 side for temporary connection. The lock member 3 itself is temporarily connected to the housing 2 by being engaged with the locking projection 16. Further, two engagement grooves 25, 25 are formed on both sides of the engagement groove 24, and both the engagement grooves 25, 25 are provided on the top surface of the top plate portion 10b on the housing 2 side. The projections 17 are engaged with each other. The end of both engagement grooves 25, that is, the tip end portion of the lock arm portion 21 is a lock step portion 27 so that it can be engaged with the lock projections 17 and 17 for main coupling on the housing 2 side. It has become.
[0024]
With the above configuration, the FPC 5 and the connector 1 according to the present embodiment are connected and act as follows.
[0025]
As shown in FIG. 2, before the FPC 5 is mounted, the lock member 3 is attached to the housing 2 of the connector 1 in a temporarily coupled state. That is, the lock arm portion 21 on the lock member 3 side is temporarily coupled with the engagement groove 24 on the inside of the lock projection 16 for temporary coupling on the top surface of the top plate portion 10b of the housing 2. .
[0026]
The connection end of the FPC 5 is inserted and inserted through the insertion port 11 on one side of the connector 1. As shown in FIG. 4A, when the FPC 5 is completely inserted into the housing 2 and brought into contact with the terminal 4, the conductive surface of the flexible substrate 6 of the FPC 5 comes into contact with the tab portion 4 a of the terminal 4.
[0027]
Subsequently, as shown in FIG. 4B, the lock member 3 in a temporarily coupled state is inserted and inserted into the housing 2 from the same direction as the FPC insertion direction. At the time of pushing, the lock arm portion 20 of the lock member 3 is fitted and inserted so that the outer surface thereof faces the non-conductive surface side of the flexible substrate 6 of the FPC 5. At that stage, if the flexible board 6 is not sufficiently inserted into the housing 2, the flexible board 6 in the incompletely inserted state with the frictional force to which the lock arm portion 20 of the lock member 3 is applied is inserted. Is further pushed into the housing 2. In addition, as a result of the insertion of the lock arm portion 20, the anti-conductor lock step portion 23 at the tip portion on the lock arm portion 20 side eventually comes into contact with the lock convex portion 7a on the reinforcing plate 7 on the flexible substrate 6 side from behind, The connection end of the flexible substrate 6 is pushed into a predetermined position in the back of the housing 2 and brought into pressure contact with the terminal 4 to be in an electrically conductive state.
[0028]
Thus, by inserting the lock member 3 from the left direction to the right direction in the figure, the anti-conductor lock step portion 23 of the lock arm portion 20 is advanced, and the lock convex portion 7a on the FPC 5 side is pushed in, so that the flexible substrate 6 4 is completely connected to the terminal 4 in the housing 2, as shown in FIG. 4 (b), the lock arm portion 21 on the other side of the lock member 3 at that stage is used for the main coupling at the tip. The lock step portion 27 gets over and engages with the lock convex portions 17 and 17 on the upper surface of the housing side top plate portion 10b. That is, the lock member 3 is permanently coupled to the housing 2 in a locked state.
[0029]
When the lock member 3 is locked to the housing 2, the lock arm portion 21 on the lock member 3 side suppresses the top plate portion 10b of the housing 2 from being swollen and deformed by the press-fitting of the terminal 4 from the outside. To do. Since the lock arm portion 21 is greatly increased in rigidity toward the U-turn base portion 22 side, the elastic deformation of the top plate portion 10b on the housing 2 side can be suppressed.
[0030]
In the state shown in FIG. 4B, the FPC 5 is engaged with the lock projection 7a on the reinforcing plate 7 on the connecting end at the tip of the lock projection 7a on the side of the lock member 3 in contact with the lock projection 3 from behind. As a result, displacement and disconnection in the reverse insertion direction are prevented, and contact displacement and separation from the terminal 4 in the housing 2 can be prevented, and reliability as an electrical system can be ensured.
[0031]
【The invention's effect】
As described above, the flexible conductor connecting connector according to claim 1 of the present invention tends to cause deformation such as bulging in the housing by press-fitting and accommodating a plurality of terminals in the housing. The U-shaped lock member is inserted to prevent deformation of the housing, and the lock member is inserted and the flexible conductor connected to the terminal in the housing is locked at the body conductor lock step. The lock member itself can be brought into a lock state in which the lock member is finally coupled to the housing from the temporarily coupled state to the housing at the lock step for the housing. Further, in the housing, when a plurality of terminals are press-fitted into the housing, the top plate portion on the housing side particularly swells and deforms from the inside due to the input of the terminal pressure. In the locked state, the lock arm portion on the other side cooperates with the lock arm portion on one side to hold the top plate portion on the housing side from inside and outside to prevent deformation on the housing side. At that time, since the lock arm on the other side is thicker at the base to increase the rigidity, the top plate on the housing side is swollen and deformed by the input of terminal pressure. It can be suppressed by pressing it from the outside with the lock arm.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an insertion mode of an FPC and a connection connector according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is an exploded perspective view of the present embodiment.
4 (a) and 4 (b) are side sectional views showing a temporarily coupled state after inserting the FPC and before inserting the lock member into the connector side housing, and the connector housing with the lock member inserted therein. It is side surface sectional drawing which shows this coupling | bonding state made into the lock | rock.
FIG. 5 is a side cross-sectional view showing a conventional slider-type connector.
[Explanation of symbols]
1 Connector 2 Housing 3 Locking Member 4 Terminal 5 FPC (Flexible Conductor)
6 Flexible substrate 7 Reinforcing plate 7a Lock convex part 10a Housing bottom plate part 10b Housing top plate part 11 Insert port 13 Terminal restricting step part 16 Temporary coupling locking convex part 17 Main coupling lock convex part 20 Lock arm portion 21 Lock arm portion 23 on the other side Lock step portions 24, 25 for conductors Engaging grooves 27 Lock step portions for housing

Claims (1)

樹脂フィルム上に導体金属で回路パターンが形成された可撓性を有する撓み基板をベースとし、該撓み基板の接続端の非導通面側に補強板を接着接合し、該補強板の先端部に肉厚を厚く成形したロック凸部を形成してなるフレキシブル導体と,
底板部,天板部および両側板からなる内部空洞の筐体を有し、該筐体の内部に複数の端子を圧入保持したハウジングを有し、前記筐体の正面一側に前記フレキシブル導体を先端の接続端から挿入する挿入口を形成してなり、前記底板部には、前記挿入口側から上りテーパによるガイド傾斜面が形成され、該ガイド傾斜面の後方部に前記端子のタブ部の先端を突き当て規制して位置決めする規制段部が段差形成されており、前記天板部には、筐体内面側に端子を圧入し面一となし、筐体外面側の前記挿入口の近傍に仮結合状態にする係止凸部が突設され、該係止凸部の後方に本結合用のロック凸部が突設されてなるハウジングと,
側面からみて略U字形状に樹脂成形され、折り返すUターン基部から一側に第1のロック腕部が、他側に第2のロック腕部が形成され、該第1及び第2のロック腕部間に前記ハウジング側の天板部を挟んで挟持可能に形成し、前記第1のロック腕部は、その内面で前記端子のタブ部を前記第2のロック腕部と協働して保持すると共に、先端部の外側に段差を形成し前記ロック凸部が係合する対導体用ロック段部を設け、前記第2のロック腕部は、前記Uターン基部に向かって肉厚を漸次厚く形成し、その内側で幅方向の中央部から1つの係合溝を形成すると共に、該係合溝を前記ハウジング側の天板部上面に設けた前記仮結合用の係止凸部に係合させて、前記ハウジングに仮結合状態にするロック部材と,
を備え,
前記ハウジングの一側の挿入口から前記フレキシブル導体を挿入した後、前記ハウジングに仮結合状態で付帯させたスライド嵌挿式の前記ロック部材をスライドさせて、前記端子に前記フレキシブル導体を圧接させて接続することを特徴とするフレキシブル導体の接続コネクタ
Based on a flexible flexible substrate in which a circuit pattern is formed of a conductive metal on a resin film, a reinforcing plate is adhesively bonded to the non-conductive surface side of the connecting end of the flexible substrate, and is attached to the tip of the reinforcing plate. A flexible conductor formed with a lock projection formed with a thick wall;
A housing having an internal cavity composed of a bottom plate portion, a top plate portion, and both side plates; a housing in which a plurality of terminals are press-fitted and held inside the housing; and the flexible conductor on one side of the front surface of the housing An insertion slot for insertion from the connecting end of the tip is formed, and the bottom plate portion is formed with a guide inclined surface by an upward taper from the insertion port side, and a tab portion of the terminal is formed at a rear portion of the guide inclined surface. A regulation step portion for positioning by restricting the tip is formed, and a terminal is press-fitted on the inner surface side of the casing so as to be flush with the top plate portion, in the vicinity of the insertion port on the outer surface side of the casing And a housing in which a locking projection for temporarily coupling is projected, and a locking projection for coupling is projected behind the locking projection,
A first lock arm portion is formed on one side and a second lock arm portion is formed on one side from the U-turn base portion to be folded, and the first and second lock arms are formed. The first lock arm portion is configured to hold the tab portion of the terminal in cooperation with the second lock arm portion on the inner surface thereof. In addition, a step is formed on the outer side of the tip portion and a lock step portion for a conductor that engages with the lock projection is provided, and the second lock arm portion gradually increases in thickness toward the U-turn base portion. Forming one engagement groove from the center in the width direction on the inner side, and engaging the engagement groove with the temporary coupling locking projection provided on the top surface of the top plate on the housing side A lock member that is temporarily coupled to the housing;
With
After inserting the flexible conductor from the insertion port on one side of the housing, slide the slide fitting lock member attached to the housing in a temporarily coupled state, and press the flexible conductor to the terminal. A connector for a flexible conductor, characterized by being connected .
JP2000274820A 2000-09-11 2000-09-11 Flexible conductor connector Expired - Lifetime JP3789073B2 (en)

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US7044773B2 (en) 2002-08-01 2006-05-16 Ddk Ltd. Connector
WO2006016482A1 (en) 2004-08-10 2006-02-16 Ddk Ltd. Connector
JP4578931B2 (en) 2004-10-18 2010-11-10 第一電子工業株式会社 connector
JP5798846B2 (en) * 2011-09-13 2015-10-21 矢崎総業株式会社 connector
JP2013198773A (en) * 2013-07-04 2013-10-03 Daito Giken:Kk Game machine
CN106663896B (en) 2014-09-03 2020-01-21 高准公司 Connector with latch
KR102432541B1 (en) * 2015-09-24 2022-08-17 주식회사 기가레인 Flexible printed circuit board having improved bending durabiliy and manufacturing method thereof
KR102442838B1 (en) * 2015-09-24 2022-09-15 주식회사 기가레인 Flexible printed circuit board having three dielectric substance layer and four ground layer
KR102497358B1 (en) * 2015-09-24 2023-02-10 주식회사 기가레인 Flexible printed circuit board having improved bending durabiliy

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