JP3700753B2

JP3700753B2 - Terminal equipment

Info

Publication number: JP3700753B2
Application number: JP27558198A
Authority: JP
Inventors: 智渡邉; 詳昌鈴木; 武長田; 則雅鈴木
Original assignee: Toshiba Lighting and Technology Corp
Current assignee: Toshiba Lighting and Technology Corp
Priority date: 1998-09-29
Filing date: 1998-09-29
Publication date: 2005-09-28
Anticipated expiration: 2018-09-29
Also published as: JP2000106231A

Description

【０００１】
【発明の属する技術分野】
本発明は、電線接続用の端子装置に関する。
【０００２】
【従来の技術】
従来、電線接続用の端子装置は、例えば、照明器具用のインバータ点灯装置などの基板に取り付けられ、その基板に対して電線を接続する基板用端子台として使用されており、図７に示すように、端子金具１およびこの端子金具１を収納するケース２を有し、ケース２の電線挿入孔2aに挿入される電線３に対して端子金具１が電気的接続状態で抜け止め係止するようにした構造が採られている。
【０００３】
端子金具１は、側板部1aを有し、この側板部1aの縁部から、電線挿入孔2aに挿入される電線３を受け止める電線受面部1b、電線３に接触して電線受面部1bに押し付ける鎖錠片部1c、ケース２から突出して基板に取り付けられる脚部1d、ケース２に固定される係止爪1eなどがそれぞれ折曲されており、１枚の板材から展開状態の形状に切り出して折曲することで形成されている。
【０００４】
【発明が解決しようとする課題】
しかしながら、基板用端子台は、インバータ点灯装置に用いられる場合、インバータ点灯装置の基板の横幅寸法内に多い場合には８個程度並べて取り付けられるため、基板の横幅の幅狭化や基板用端子台の並設個数の増加に伴って、基板用端子台の小形化が求められている。
【０００５】
基板用端子台の小形化する場合の１つの方法として、端子金具１の電線受面部1bから鎖錠片部1cの基端部までの寸法Ａを小さくすることが考えられるが、この寸法Ａを小さくすると、鎖錠片部1cが短くなって十分なばね性が得られなくなり、電線３を鎖錠片部1cと電線受面部1bとの間に挿入する際に、鎖錠片部1cの剛性が強くてその鎖錠片部1cを弾性変形させるのに大きな挿入力を必要としてスムーズに挿入できないか、あるいは鎖錠片部1cが塑性変形して電線３との接触が不安定になることが考えられる。
【０００６】
本発明は、このような点に鑑みなされたもので、電線受面部と鎖錠片部の折曲部分との間の寸法を小さくしても、電線の挿入性がよく、電線との接触状態を安定させることができ、よって、電線受面部と鎖錠片部との間の寸法を小さくして小形化できる端子装置を提供することを目的とする。
【０００７】
【課題を解決するための手段】
請求項１記載の端子装置は、一面に電線受面を有する電線受面部と、この電線受面部から電線受面側に折曲され、電線挿入孔を有する電線挿入面部と、この電線挿入面部の前記電線受面部に対して反対側の縁部から電線受面に向けて折曲された鎖錠片部と、前記電線挿入面部の電線挿入孔付近から前記鎖錠片部の先端にわたって、その電線挿入孔からの電線挿入方向に沿って設けられた鎖錠片側スリットとを具備しているものである。
【０００８】
そして、一面に電線受面を有する電線受面部、電線挿入孔を有する電線挿入面部、および鎖錠片部を順次折曲し、電線挿入面部の電線挿入孔付近から鎖錠片部の先端にわたって、その電線挿入孔からの電線挿入方向に沿って鎖錠片側スリットを設けることにより、電線挿入孔に挿入される電線で鎖錠片部の鎖錠片側スリットで分割された各部分がそれぞれ弾性変形しながら、電線受面との間への電線の挿入を許容するので、電線受面部と鎖錠片部との間の電線挿入面部の寸法を小さくしても、鎖錠片部の剛性が低減されて電線の挿入性がよく、鎖錠片部が塑性変形することなく電線との接触状態が安定する。したがって、電線受面部と鎖錠片部との間の電線挿入面部の寸法を小さくして小形化することが可能となる。
【０００９】
請求項２記載の端子装置は、一面に電線受面を有する電線受面部と、この電線受面部から電線受面側に折曲され、電線挿入孔を有する電線挿入面部と、この電線挿入面部の前記電線受面部に対して反対側の縁部から電線受面に向けて折曲された鎖錠片部と、前記電線受面部に、前記電線挿入面部の電線挿入孔付近から、その電線挿入孔からの電線挿入方向に沿って設けられた電線受面側スリットとを具備しているものである。
【００１０】
そして、一面に電線受面を有する電線受面部、電線挿入孔を有する電線挿入面部、および鎖錠片部を順次折曲し、電線受面部には、電線挿入面部の電線挿入孔付近から、その電線挿入孔からの電線挿入方向に沿って電線受面側スリットを設けることにより、電線挿入孔に挿入される電線で電線受面部の電線受面側スリットで分割された各部分がそれぞれ弾性変形しながら鎖錠片部に対して逃げ、鎖錠片部との間への電線の挿入を許容するので、電線受面部と鎖錠片部との間の電線挿入面部の寸法を小さくしても、電線受面部の剛性が低減されて電線の挿入性がよく、鎖錠片部が塑性変形することなく電線との接触状態が安定する。したがって、電線受面部と鎖錠片部との間の電線挿入面部の寸法を小さくして小形化することが可能となる。
【００１１】
請求項３記載の端子装置は、一面に電線受面を有する電線受面部と、この電線受面部から電線受面側に折曲され、電線挿入孔を有する電線挿入面部と、この電線挿入面部の前記電線受面部に対して反対側の縁部から電線受面に向けて折曲された鎖錠片部と、前記電線挿入面部の電線挿入孔付近から前記鎖錠片部の先端にわたって、その電線挿入孔からの電線挿入方向に沿って設けられた鎖錠片側スリットと、前記電線受面部に、前記電線挿入面部の電線挿入孔付近から、その電線挿入孔からの電線挿入方向に沿って設けられた電線受面側スリットとを具備しているものである。
【００１２】
そして、一面に電線受面を有する電線受面部、電線挿入孔を有する電線挿入面部、および鎖錠片部を順次折曲し、電線挿入面部の電線挿入孔付近から鎖錠片部の先端にわたって、その電線挿入孔からの電線挿入方向に沿って鎖錠片側スリットを設け、および、電線受面部には、電線挿入面部の電線挿入孔付近から、その電線挿入孔からの電線挿入方向に沿って電線受面側スリットを設けることにより、電線挿入孔に挿入される電線で鎖錠片部の鎖錠片側スリットで分割された各部分がそれぞれ弾性変形しながら、および電線挿入孔に挿入される電線で電線受面部の電線受面側スリットで分割された各部分がそれぞれ弾性変形しながら鎖錠片部に対して逃げ、電線受面と鎖錠片部との間への電線の挿入を許容するので、電線受面部と鎖錠片部との間の電線挿入面部の寸法を小さくしても、電線受面部および鎖錠片部の剛性が低減されて電線の挿入性がよく、鎖錠片部が塑性変形することなく電線との接触状態が安定する。したがって、電線受面部と鎖錠片部との間の電線挿入面部の寸法を小さくして小形化することが可能となる。
【００１３】
請求項４記載の端子装置は、請求項１ないし３いずれか記載の端子装置において、電線受面部の電線挿入面部と反対側の縁部から突設される脚部を具備しているものである。
【００１４】
そして、電線受面部の電線挿入面部と反対側の縁部から脚部を突設することにより、基板などに接続固定可能とする。
【００１５】
請求項５記載の端子装置は、請求項４記載の端子装置において、脚部は、電線受面部から切り起こし形成されているものである。
【００１６】
そして、脚部を電線受面部から切り起こし形成することにより、端子素材から切り出す際の材料取りがよくなる。
【００１７】
【発明の実施の形態】
以下、本発明の一実施の形態を図面を参照して説明する。
【００１８】
図１ないし図５に一実施の形態を示し、この実施の形態では、例えば、照明器具用のインバータ点灯装置などの基板に取り付けられ、その基板に対して電線を接続する基板用端子台を示す。
【００１９】
基板用端子台は、一対（２極）の端子金具11、この端子金具11を収納するケース12およびカバー13を有し、２極一体形に形成されている。
【００２０】
端子金具11は、導電性およびばね性を有する薄い板材を端子素材として形成されており、一面側を電線受面21とする電線受面部22を有し、この電線受面部22の一端側の縁部から電線受面21側に略直角に電線挿入面部23が折曲形成され、この電線挿入面部23の先端側（電線受面部22に対して反対側）の縁部から電線受面21に向けて傾斜状に鎖錠片部24が折曲形成され、電線受面部22の他端側（電線挿入面部23と反対側）の縁部の両側から一対の脚部25が延設されている。
【００２１】
電線挿入面部23の中央には、電線受面21に臨んで図示しない電線が挿入される電線挿入孔26が形成されている。
【００２２】
電線挿入面部23の電線挿入孔26付近から鎖錠片部24の先端にわたって、その電線挿入孔26からの電線挿入方向に沿って鎖錠片側スリット27が形成されている。この鎖錠片側スリット27によって、鎖錠片部24は一対の分割片部24a に分割形成されている。なお、電線挿入孔26と鎖錠片側スリット27の端部との間には、鎖錠片側スリット27が入らずに分割されない連結部28が残る。
【００２３】
電線受面部22に、電線挿入面部23の電線挿入孔26付近から、その電線挿入孔26からの電線挿入方向に沿って電線受面側スリット29が形成されている。この電線受面側スリット29によって、電線受面部22は一対の分割片部22a に分割形成されている。なお、電線挿入孔26と電線受面側スリット29の一端部との間、電線受面側スリット29の他端部と電線受面部22の他端縁部との間には、電線受面側スリット29が入らずに分割されない連結部30，31がそれぞれ残る。
【００２４】
また、ケース12は、絶縁性を有する例えば合成樹脂材料にて箱状に形成されており、内部に一対の端子金具11が収納される一対の端子収納部41が仕切壁42で仕切られて並列に区画形成されている。各端子収納部41は、一対の端子収納部41が並ぶ端子並設方向の幅が端子並設方向と直交する方向の幅に比べて狭く形成され、ケース12の横断面形状は略正方形状に形成されている。
【００２５】
各端子収納部41には、端子金具11の電線挿入面部23に接して位置決めする保持面43、端子金具11の電線受面部22に接して保持する保持面44、端子金具11の両側縁に接触保持する保持面45、端子金具11の折曲部分に接して保持する保持面46が形成されている。保持面43には、保持面44に臨ん図示しない電線が挿入される電線挿入孔47が形成されている。保持面44の中央には、端子金具11の電線受面側スリット29の位置に対応して凹部48が電線挿入方向に沿って形成されている。
【００２６】
ケース12の下面には各端子収納部41に対して各端子金具11を挿入する開口部49が形成され、この開口部49の端子並設方向の両縁部にカバー13を取り付ける取付孔50が形成されている。
【００２７】
また、カバー13は、絶縁性を有する例えば合成樹脂材料にて長方形状に形成され、ケース12の開口部49に着脱可能に装着されるもので、長手方向の幅が開口部49の幅と略同一に形成され、短手方向の幅が開口部49の幅より狭く、その短手方向の両側の開口部分を通じて端子金具11の脚部25が突出するようになっている。カバー13の長手方向の両端には取付孔50に係合される係止爪部51が突出形成されている。カバー13の端子収納部41に臨む面には、保持面44との間で端子金具11の電線受面部22を挟持する保持突部52が突出形成されている。
【００２８】
そして、基板用端子台を組み立てる場合には、端子金具11の電線挿入面部23を先頭とするとともに電線受面部22を凹部48を有する保持面44に沿わせるようにして、一対の各端子金具11をケース12の一対の各端子収納部41に開口部49を通じて挿入し、カバー13をケース12の開口部49に取り付ける。
【００２９】
この組立状態では、端子金具11がケース12とカバー13との間で端子収納部41内の所定位置に位置決め保持され、端子金具11の電線挿入孔26がケース12の電線挿入孔47に連通し、脚部25がカバー13の両側開口を通じてケース12から突出される。
【００３０】
また、基板用端子台を基板に装着する場合には、ケース12から突出する脚部25を基板に通して回路にはんだ付けし、電気的に接続するとともに機械的に固定する。
【００３１】
また、基板用端子台に電線を接続する場合には、被覆を切り取って芯線を露出させた電線の先端をケース12の電線挿入孔47を通じて端子金具11の電線挿入孔26に挿入する。挿入される電線は鎖錠片部24に接触して、その鎖錠片部24を弾性変形させながら電線受面21と鎖錠片部24との間に挿入される。
【００３２】
このとき、電線挿入面部23の電線挿入孔26付近から鎖錠片部24の先端にわたって形成される鎖錠片側スリット27によって、鎖錠片部24が一対の分割片部24a に分割されて剛性が低減されており、各分割片部24a の鎖錠片側スリット27に近い縁部側が電線で押圧されて大きく弾性変形するが、鎖錠片側スリット27と反対側の縁部側の弾性変形は小さく、各分割片部24a 全体が一様に大きく弾性変形する場合に比べて、小さい力で各分割片部24a がねじれるように弾性変形される。そのため、電線を電線受面21と鎖錠片部24との間に容易に挿入できる。
【００３３】
また、電線受面部22に形成される電線受面側スリット29によって、電線受面部22が一対の分割片部22a に分割されて剛性が低減されており、各分割片部22a の電線受面側スリット29に近い縁部側が電線で押圧されると、鎖錠片部24に対して逃げるように電線受面21と反対側に弾性変形する。そのため、電線を電線受面21と鎖錠片部24との間に容易に挿入できる。
【００３４】
したがって、電線受面側スリット29を有する電線受面部22と鎖錠片側スリット27を有する鎖錠片部24との両方の相乗作用によって、電線を電線受面21と鎖錠片部24との間に容易に挿入できる。
【００３５】
そして、挿入された電線には鎖錠片部24が食い付いた状態で圧接し、電線と端子金具11とが電気的に接続されるとともに、電線が鎖錠片部24で抜け止め係止される。
【００３６】
このように、電線受面21を有する電線受面部22、電線挿入孔26を有する電線挿入面部23、および鎖錠片部24を順次折曲し、電線挿入面部23の電線挿入孔26付近から鎖錠片部24の先端にわたって、その電線挿入孔26からの電線挿入方向に沿って鎖錠片側スリット27を設け、および、電線受面部22には、電線挿入面部23の電線挿入孔26付近から、その電線挿入孔26からの電線挿入方向に沿って電線受面側スリット29を設けることにより、電線挿入孔26に挿入される電線で鎖錠片部24の鎖錠片側スリット27で分割された各分割片部24a の部分がそれぞれ弾性変形しながら、および電線挿入孔26に挿入される電線で電線受面部22の電線受面側スリット29で分割された各分割片部22a の部分がそれぞれ弾性変形しながら鎖錠片部24に対して逃げ、電線受面21と鎖錠片部24との間への電線の挿入を許容するので、電線受面部22と鎖錠片部24との間の電線挿入面部23の寸法を小さくしても、電線受面部22および鎖錠片部24の剛性が低減されて電線の挿入性がよく、鎖錠片部24が塑性変形することなく電線との接触状態を安定させることができる。したがって、電線受面部22と鎖錠片部24との間の電線挿入面部23の寸法を小さくして小形化することができる。
【００３７】
また、各スリット27，29を電線挿入孔26まで入れた場合には、電線挿入孔26の部分でもずれが生じ、電線を電線挿入孔26に挿入できなくなったり、挿入した電線がスリット27，29から外れやすくなるが、各スリット27，29を電線挿入孔26まで入れずに連結部28，30を残すことにより、電線を電線挿入孔26に確実に挿入できるとともに電線が外れるのを防止できる。
【００３８】
また、端子金具11は、同一方向に２回折り曲げるだけの簡単な構造であり、各スリット27，29も端子素材からの切り出し時に同時に形成でき、端子金具11を容易に製造でき、安価にできる。
【００３９】
また、図６に他の実施の形態を示し、脚部25を電線受面部22の両側から切り起こし形成することにより、端子金具11の展開状態では略長方形状となって飛び出す部分がなく、１枚の端子素材から切り出す際に、使用されずに無駄となる部分が少なく、材料取りをよくでき、例えば安価なリボン材を使用できる。
【００４０】
【発明の効果】
請求項１記載の端子装置によれば、一面に電線受面を有する電線受面部、電線挿入孔を有する電線挿入面部、および鎖錠片部を順次折曲し、電線挿入面部の電線挿入孔付近から鎖錠片部の先端にわたって、その電線挿入孔からの電線挿入方向に沿って鎖錠片側スリットを設けることにより、電線挿入孔に挿入される電線で鎖錠片部の鎖錠片側スリットで分割された各部分がそれぞれ弾性変形しながら、電線受面との間への電線の挿入を許容するので、電線受面部と鎖錠片部との間の電線挿入面部の寸法を小さくしても、鎖錠片部の剛性が低減されて電線の挿入性がよく、鎖錠片部が塑性変形することなく電線との接触状態を安定させることができる。したがって、電線受面部と鎖錠片部との間の電線挿入面部の寸法を小さくして小形化することができる。
【００４１】
請求項２記載の端子装置によれば、一面に電線受面を有する電線受面部、電線挿入孔を有する電線挿入面部、および鎖錠片部を順次折曲し、電線受面部には、電線挿入面部の電線挿入孔付近から、その電線挿入孔からの電線挿入方向に沿って電線受面側スリットを設けることにより、電線挿入孔に挿入される電線で電線受面部の電線受面側スリットで分割された各部分がそれぞれ弾性変形しながら鎖錠片部に対して逃げ、鎖錠片部との間への電線の挿入を許容するので、電線受面部と鎖錠片部との間の電線挿入面部の寸法を小さくしても、電線受面部の剛性が低減されて電線の挿入性がよく、鎖錠片部が塑性変形することなく電線との接触状態を安定させることができる。したがって、電線受面部と鎖錠片部との間の電線挿入面部の寸法を小さくして小形化することができる。
【００４２】
請求項３記載の端子装置によれば、一面に電線受面を有する電線受面部、電線挿入孔を有する電線挿入面部、および鎖錠片部を順次折曲し、電線挿入面部の電線挿入孔付近から鎖錠片部の先端にわたって、その電線挿入孔からの電線挿入方向に沿って鎖錠片側スリットを設け、および、電線受面部には、電線挿入面部の電線挿入孔付近から、その電線挿入孔からの電線挿入方向に沿って電線受面側スリットを設けることにより、電線挿入孔に挿入される電線で鎖錠片部の鎖錠片側スリットで分割された各部分がそれぞれ弾性変形しながら、および電線挿入孔に挿入される電線で電線受面部の電線受面側スリットで分割された各部分がそれぞれ弾性変形しながら鎖錠片部に対して逃げ、電線受面と鎖錠片部との間への電線の挿入を許容するので、電線受面部と鎖錠片部との間の電線挿入面部の寸法を小さくしても、電線受面部および鎖錠片部の剛性が低減されて電線の挿入性がよく、鎖錠片部が塑性変形することなく電線との接触状態を安定させることができる。したがって、電線受面部と鎖錠片部との間の電線挿入面部の寸法を小さくして小形化することができる。
【００４３】
請求項４記載の端子装置によれば、請求項１ないし３いずれか記載の端子装置の効果に加えて、電線受面部の電線挿入面部と反対側の縁部から脚部を突設するので、基板などに接続固定できる。
【００４４】
請求項５記載の端子装置によれば、請求項４記載の端子装置の効果に加えて、脚部を電線受面部から切り起こし形成するので、端子素材から切り出す際の材料取りをよくできる。
【図面の簡単な説明】
【図１】本発明の端子装置の一実施の形態を示す端子金具の斜視図である。
【図２】同上端子台の組立状態の断面図である。
【図３】同上端子台の分解状態の断面図である。
【図４】同上ケースの底面図である。
【図５】同上カバーの底面図である。
【図６】本発明の端子装置の他の実施の形態を示す端子金具の斜視図である。
【図７】従来の端子台の断面図である。
【符号の説明】
21 電線受面
22 電線受面部
23 電線挿入面部
24 鎖錠片部
25 脚部
26 電線挿入孔
27 鎖錠片側スリット
29 電線受面側スリット[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a terminal device for connecting electric wires.
[0002]
[Prior art]
Conventionally, a terminal device for connecting an electric wire is attached to a substrate such as an inverter lighting device for a lighting fixture and used as a terminal block for a substrate for connecting an electric wire to the substrate, as shown in FIG. The terminal fitting 1 and the case 2 for housing the terminal fitting 1 are provided, and the terminal fitting 1 is retained and locked to the electric wire 3 inserted into the electric wire insertion hole 2a of the case 2 in an electrically connected state. The structure made is adopted.
[0003]
The terminal fitting 1 has a side plate portion 1a. From the edge portion of the side plate portion 1a, the wire receiving surface portion 1b for receiving the electric wire 3 inserted into the electric wire insertion hole 2a and the electric wire 3 are contacted and pressed against the electric wire receiving surface portion 1b. The locking piece 1c, the leg 1d that protrudes from the case 2 and is attached to the substrate, the locking claw 1e that is fixed to the case 2, and the like are each bent and cut out from a single plate into a deployed state. It is formed by bending.
[0004]
[Problems to be solved by the invention]
However, when the board terminal block is used in an inverter lighting device, if it is larger than the width of the substrate of the inverter lighting device, about eight are mounted side by side. With the increase in the number of parallel terminals, there is a demand for miniaturization of the terminal block for substrates.
[0005]
One way to reduce the size of the terminal block for the board is to reduce the dimension A from the wire receiving surface 1b of the terminal fitting 1 to the base end of the lock piece 1c. If it is made smaller, the locking piece 1c will be shortened and sufficient springiness will not be obtained, and the rigidity of the locking piece 1c will be reduced when the electric wire 3 is inserted between the locking piece 1c and the wire receiving surface 1b. The lock piece 1c is strong and requires a large insertion force to elastically deform it, or it cannot be inserted smoothly, or the lock piece 1c is plastically deformed and the contact with the wire 3 becomes unstable. Conceivable.
[0006]
The present invention has been made in view of such points, and even when the dimension between the wire receiving surface portion and the bent portion of the locking piece portion is reduced, the insertion property of the wire is good and the contact state with the wire Therefore, an object of the present invention is to provide a terminal device that can be reduced in size by reducing the dimension between the wire receiving surface portion and the locking piece portion.
[0007]
[Means for Solving the Problems]
The terminal device according to claim 1 includes an electric wire receiving surface portion having an electric wire receiving surface on one surface, an electric wire insertion surface portion bent from the electric wire receiving surface portion to the electric wire receiving surface side and having an electric wire insertion hole, and the electric wire insertion surface portion. The locking piece part bent toward the electric wire receiving surface from the edge opposite to the electric wire receiving surface part, and the electric wire extending from the vicinity of the electric wire insertion hole of the electric wire insertion surface part to the tip of the locking piece part And a locking piece-side slit provided along the direction of electric wire insertion from the insertion hole.
[0008]
Then, the wire receiving surface portion having the wire receiving surface on one side, the wire insertion surface portion having the wire insertion hole, and the locking piece portion are sequentially bent, and from the vicinity of the wire insertion hole of the wire insertion surface portion to the tip of the locking piece portion, By providing the locking piece side slit along the electric wire insertion direction from the electric wire insertion hole, each part divided by the locking piece side slit of the locking piece portion is elastically deformed by the electric wire inserted into the electric wire insertion hole. However, since the insertion of the electric wire between the electric wire receiving surface is allowed, the rigidity of the locking piece portion is reduced even if the size of the electric wire insertion surface portion between the electric wire receiving surface portion and the locking piece portion is reduced. Thus, the insertion property of the electric wire is good, and the contact state with the electric wire is stabilized without plastic deformation of the locking piece portion. Therefore, it is possible to reduce the size of the electric wire insertion surface portion between the electric wire receiving surface portion and the lock piece portion and reduce the size.
[0009]
The terminal device according to claim 2 includes an electric wire receiving surface portion having an electric wire receiving surface on one surface, an electric wire insertion surface portion bent from the electric wire receiving surface portion to the electric wire receiving surface side, and having an electric wire insertion hole, and the electric wire insertion surface portion. The locking piece part bent toward the electric wire receiving surface from the edge on the opposite side to the electric wire receiving surface part, and the electric wire insertion hole from the vicinity of the electric wire insertion hole of the electric wire insertion surface part to the electric wire insertion hole The wire receiving surface side slit provided along the electric wire insertion direction from is comprised.
[0010]
Then, the electric wire receiving surface portion having the electric wire receiving surface on one side, the electric wire insertion surface portion having the electric wire insertion hole, and the locking piece portion are sequentially bent, and from the vicinity of the electric wire insertion hole of the electric wire insertion surface portion, By providing the wire receiving surface side slit along the wire insertion direction from the wire insertion hole, each part of the wire inserted into the wire insertion hole divided by the wire receiving surface side slit is elastically deformed. While escaping to the locking piece part, and allowing insertion of the electric wire between the locking piece part, even if the size of the electric wire insertion surface part between the wire receiving surface part and the locking piece part is reduced, The rigidity of the electric wire receiving surface portion is reduced, the electric wire can be easily inserted, and the locked piece portion is not deformed plastically and the contact state with the electric wire is stabilized. Therefore, it is possible to reduce the size of the electric wire insertion surface portion between the electric wire receiving surface portion and the lock piece portion and reduce the size.
[0011]
The terminal device according to claim 3 includes a wire receiving surface portion having a wire receiving surface on one surface, a wire insertion surface portion bent from the wire receiving surface portion to the wire receiving surface side and having a wire insertion hole, and the wire insertion surface portion. The locking piece part bent toward the electric wire receiving surface from the edge opposite to the electric wire receiving surface part, and the electric wire extending from the vicinity of the electric wire insertion hole of the electric wire insertion surface part to the tip of the locking piece part The locking piece side slit provided along the electric wire insertion direction from the insertion hole and the electric wire receiving surface portion are provided along the electric wire insertion direction from the electric wire insertion hole from the vicinity of the electric wire insertion hole of the electric wire insertion surface portion. And an electric wire receiving surface side slit.
[0012]
Then, the wire receiving surface portion having the wire receiving surface on one side, the wire insertion surface portion having the wire insertion hole, and the locking piece portion are sequentially bent, and from the vicinity of the wire insertion hole of the wire insertion surface portion to the tip of the locking piece portion, A locking piece side slit is provided along the electric wire insertion direction from the electric wire insertion hole, and the electric wire receiving surface portion has an electric wire along the electric wire insertion direction from the electric wire insertion hole from the vicinity of the electric wire insertion hole of the electric wire insertion surface portion. By providing a slit on the receiving surface side, each part divided by the locking piece side slit of the locking piece portion is elastically deformed by the electric wire inserted into the electric wire insertion hole, and the electric wire inserted into the electric wire insertion hole. Since each part divided by the wire receiving surface side slit of the wire receiving surface part is elastically deformed and escapes to the locking piece part, and insertion of the electric wire between the wire receiving surface and the locking piece part is allowed. , Wire receiving surface and lock piece Even if the dimension of the electric wire insertion surface portion between them is reduced, the rigidity of the electric wire receiving surface portion and the locking piece portion is reduced, the electric wire insertion property is good, and the contact state with the electric wire does not deform plastically. Stabilize. Therefore, it is possible to reduce the size of the electric wire insertion surface portion between the electric wire receiving surface portion and the lock piece portion and reduce the size.
[0013]
According to a fourth aspect of the present invention, there is provided the terminal device according to any one of the first to third aspects, further comprising a leg portion protruding from an edge portion of the electric wire receiving surface portion opposite to the electric wire insertion surface portion. .
[0014]
And it is possible to connect and fix to a substrate or the like by projecting the leg from the edge of the wire receiving surface opposite to the wire insertion surface.
[0015]
The terminal device according to a fifth aspect is the terminal device according to the fourth aspect, wherein the leg portion is cut and raised from the wire receiving surface portion.
[0016]
Then, by cutting and raising the leg portion from the wire receiving surface portion, the material removal when cutting out from the terminal material is improved.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0018]
FIG. 1 to FIG. 5 show an embodiment. In this embodiment, for example, a board terminal block that is attached to a board such as an inverter lighting device for a lighting fixture and connects an electric wire to the board is shown. .
[0019]
The board terminal block has a pair (two poles) of terminal fittings 11, a case 12 for housing the terminal fittings 11, and a cover 13, and is formed in a two-pole integrated form.
[0020]
The terminal fitting 11 is formed by using a thin plate material having conductivity and spring property as a terminal material, and has a wire receiving surface portion 22 having one surface side as a wire receiving surface 21, and an edge on one end side of the wire receiving surface portion 22. The wire insertion surface portion 23 is bent at a substantially right angle from the portion to the wire receiving surface 21 side. From the edge of the wire insertion surface portion 23 (opposite to the wire receiving surface portion 22) toward the wire receiving surface 21 Thus, the locking piece portion 24 is bent in an inclined manner, and a pair of leg portions 25 are extended from both sides of the edge portion on the other end side (opposite side of the wire insertion surface portion 23) of the wire receiving surface portion 22.
[0021]
In the center of the electric wire insertion surface portion 23, an electric wire insertion hole 26 into which an electric wire (not shown) is inserted facing the electric wire receiving surface 21 is formed.
[0022]
A locking piece side slit 27 is formed from the vicinity of the electric wire insertion hole 26 of the electric wire insertion surface portion 23 to the tip of the locking piece portion 24 along the electric wire insertion direction from the electric wire insertion hole 26. By this lock piece side slit 27, the lock piece portion 24 is divided into a pair of divided piece portions 24a. In addition, between the wire insertion hole 26 and the end portion of the lock piece side slit 27, a connecting portion 28 that is not divided without the lock piece side slit 27 remaining is left.
[0023]
A wire receiving surface side slit 29 is formed in the wire receiving surface portion 22 from the vicinity of the wire insertion hole 26 of the wire insertion surface portion 23 along the wire insertion direction from the wire insertion hole 26. The electric wire receiving surface side slit 29 divides the electric wire receiving surface portion 22 into a pair of divided piece portions 22a. In addition, between the wire insertion hole 26 and one end of the wire receiving surface side slit 29, between the other end of the wire receiving surface side slit 29 and the other end edge of the wire receiving surface portion 22, there is a wire receiving surface side. The connecting portions 30 and 31 that are not divided without the slit 29 being left remain.
[0024]
In addition, the case 12 is formed in a box shape with, for example, a synthetic resin material having insulating properties, and a pair of terminal storage portions 41 in which a pair of terminal fittings 11 are stored are partitioned by a partition wall 42 in parallel. The compartment is formed. Each terminal storage portion 41 is formed such that the width of the terminal juxtaposition direction in which the pair of terminal storage portions 41 are arranged is narrower than the width in the direction perpendicular to the terminal juxtaposition direction, and the cross-sectional shape of the case 12 is substantially square. Is formed.
[0025]
Each terminal storage portion 41 has a holding surface 43 that is positioned in contact with the wire insertion surface portion 23 of the terminal fitting 11, a holding surface 44 that is held in contact with the wire receiving surface portion 22 of the terminal fitting 11, and contacts both side edges of the terminal fitting 11. A holding surface 45 to be held and a holding surface 46 to be held in contact with the bent portion of the terminal fitting 11 are formed. The holding surface 43 is formed with an electric wire insertion hole 47 into the holding surface 44 into which an electric wire (not shown) is inserted. In the center of the holding surface 44, a recess 48 is formed along the wire insertion direction corresponding to the position of the wire receiving surface side slit 29 of the terminal fitting 11.
[0026]
Openings 49 for inserting the respective terminal fittings 11 into the respective terminal storage portions 41 are formed on the lower surface of the case 12, and mounting holes 50 for attaching the cover 13 to both edges in the terminal juxtaposition direction of the openings 49 are formed. Is formed.
[0027]
Further, the cover 13 is formed in a rectangular shape with, for example, a synthetic resin material having insulating properties, and is detachably attached to the opening 49 of the case 12, and the width in the longitudinal direction is substantially equal to the width of the opening 49. It is formed in the same way, the width in the short direction is narrower than the width of the opening 49, and the leg portion 25 of the terminal fitting 11 protrudes through the opening portions on both sides in the short direction. At both ends in the longitudinal direction of the cover 13, locking claw portions 51 that are engaged with the mounting holes 50 are formed to project. On the surface of the cover 13 that faces the terminal storage portion 41, a holding projection 52 that projects the wire receiving surface portion 22 of the terminal fitting 11 from the holding surface 44 is formed to project.
[0028]
When assembling the terminal block for the board, the pair of terminal fittings 11 is arranged such that the wire insertion surface portion 23 of the terminal fitting 11 is at the head and the wire receiving surface portion 22 is along the holding surface 44 having the recess 48. Is inserted into the pair of terminal accommodating portions 41 of the case 12 through the opening 49, and the cover 13 is attached to the opening 49 of the case 12.
[0029]
In this assembled state, the terminal fitting 11 is positioned and held at a predetermined position in the terminal accommodating portion 41 between the case 12 and the cover 13, and the wire insertion hole 26 of the terminal fitting 11 communicates with the wire insertion hole 47 of the case 12. The leg portion 25 protrudes from the case 12 through the openings on both sides of the cover 13.
[0030]
Further, when the board terminal block is mounted on the board, the legs 25 protruding from the case 12 are passed through the board and soldered to the circuit to be electrically connected and mechanically fixed.
[0031]
Further, when connecting an electric wire to the board terminal block, the end of the electric wire whose core wire is exposed by cutting off the sheath is inserted into the electric wire insertion hole 26 of the terminal fitting 11 through the electric wire insertion hole 47 of the case 12. The inserted electric wire is inserted between the electric wire receiving surface 21 and the locking piece portion 24 while contacting the locking piece portion 24 and elastically deforming the locking piece portion 24.
[0032]
At this time, the locking piece portion 24 is divided into a pair of divided piece portions 24a by the locking piece side slit 27 formed from the vicinity of the electric wire insertion hole 26 of the electric wire insertion surface portion 23 to the tip of the locking piece portion 24, so that the rigidity is increased. The edge side near each lock piece side slit 27 of each divided piece portion 24a is greatly elastically deformed by being pressed by the electric wire, but the elastic deformation on the edge side opposite to the lock piece side slit 27 is small, Compared with the case where the entire divided piece portion 24a is uniformly elastically deformed as a whole, the divided piece portions 24a are elastically deformed with a small force so as to be twisted. Therefore, the electric wire can be easily inserted between the electric wire receiving surface 21 and the locking piece portion 24.
[0033]
Also, the wire receiving surface side slit 29 formed in the wire receiving surface portion 22 divides the wire receiving surface portion 22 into a pair of divided piece portions 22a to reduce rigidity, and the wire receiving surface side of each divided piece portion 22a When the edge near the slit 29 is pressed by the electric wire, it is elastically deformed to the side opposite to the electric wire receiving surface 21 so as to escape from the lock piece 24. Therefore, the electric wire can be easily inserted between the electric wire receiving surface 21 and the locking piece portion 24.
[0034]
Therefore, by synergistic action of both the wire receiving surface portion 22 having the wire receiving surface side slit 29 and the locking piece portion 24 having the locking piece side slit 27, the wire is connected between the wire receiving surface 21 and the locking piece portion 24. Easy to insert into.
[0035]
Then, the inserted electric wire is pressed into contact with the locking piece portion 24, and the electric wire and the terminal fitting 11 are electrically connected, and the electric wire is held and locked by the locking piece portion 24. The
[0036]
Thus, the wire receiving surface portion 22 having the wire receiving surface 21, the wire insertion surface portion 23 having the wire insertion hole 26, and the locking piece portion 24 are sequentially bent, and the chain is started from the vicinity of the wire insertion hole 26 of the wire insertion surface portion 23. The lock piece side slit 27 is provided along the electric wire insertion direction from the electric wire insertion hole 26 over the tip of the lock piece portion 24, and the electric wire receiving surface portion 22 from the vicinity of the electric wire insertion hole 26 of the electric wire insertion surface portion 23, By providing a wire receiving surface side slit 29 along the wire insertion direction from the wire insertion hole 26, each of the wires inserted into the wire insertion hole 26 is divided by the lock piece side slit 27 of the lock piece portion 24. While the divided piece portions 24a are elastically deformed, the portions of the divided piece portions 22a divided by the wire receiving surface side slits 29 of the wire receiving surface portion 22 are elastically deformed. While escaping against the locking piece 24, the wire receiving surface 21 and the locking piece 24 Since the insertion of the electric wire between them is allowed, even if the dimension of the electric wire insertion surface portion 23 between the electric wire receiving surface portion 22 and the locking piece portion 24 is reduced, the rigidity of the electric wire receiving surface portion 22 and the locking piece portion 24 is maintained. It is reduced, the insertion property of the electric wire is good, and the contact state with the electric wire can be stabilized without the lock piece 24 being plastically deformed. Therefore, the size of the electric wire insertion surface portion 23 between the electric wire receiving surface portion 22 and the locking piece portion 24 can be reduced and reduced in size.
[0037]
Further, when the slits 27 and 29 are inserted up to the electric wire insertion hole 26, the electric wire insertion hole 26 is also displaced, and the electric wire cannot be inserted into the electric wire insertion hole 26, or the inserted electric wire is inserted into the slits 27 and 29. However, by leaving the connecting portions 28 and 30 without inserting the slits 27 and 29 up to the wire insertion hole 26, the wire can be reliably inserted into the wire insertion hole 26 and the wire can be prevented from coming off.
[0038]
Further, the terminal fitting 11 has a simple structure in which the terminal fitting 11 is simply bent twice in the same direction, and the slits 27 and 29 can be formed at the same time when being cut out from the terminal material, so that the terminal fitting 11 can be easily manufactured and inexpensive.
[0039]
FIG. 6 shows another embodiment, and the leg portion 25 is cut and raised from both sides of the wire receiving surface portion 22 so that there is no portion protruding in a substantially rectangular shape when the terminal fitting 11 is unfolded. When cutting out from a sheet of terminal material, there are few parts that are not used and are wasted, and material removal can be improved. For example, an inexpensive ribbon material can be used.
[0040]
【The invention's effect】
According to the terminal device according to claim 1, the wire receiving surface portion having the wire receiving surface on one surface, the wire insertion surface portion having the wire insertion hole, and the locking piece portion are sequentially bent, and the vicinity of the wire insertion hole of the wire insertion surface portion. By splitting the locking piece side slit of the locking piece portion with the electric wire inserted into the electric wire insertion hole by providing a slit on the locking piece side along the electric wire insertion direction from the electric wire insertion hole over the tip of the locking piece portion While each portion is elastically deformed and allows insertion of the electric wire between the electric wire receiving surface, even if the size of the electric wire insertion surface portion between the electric wire receiving surface portion and the locking piece portion is reduced, The rigidity of the locking piece portion is reduced, the insertion property of the electric wire is good, and the contact state with the electric wire can be stabilized without plastic deformation of the locking piece portion. Therefore, the size of the electric wire insertion surface portion between the electric wire receiving surface portion and the locking piece portion can be reduced and the size can be reduced.
[0041]
According to the terminal device of claim 2, the wire receiving surface portion having the wire receiving surface on one surface, the wire insertion surface portion having the wire insertion hole, and the locking piece portion are sequentially bent, and the wire receiving surface portion is inserted with the wire. Dividing the wire receiving surface side slit of the wire receiving surface by the wire inserted into the wire inserting hole by providing a wire receiving surface side slit from the vicinity of the wire inserting hole of the surface portion along the direction of inserting the wire from the wire inserting hole. As each part is elastically deformed and escapes to the locking piece, allowing insertion of the electric wire between the locking piece and the wire insertion between the wire receiving surface and the locking piece. Even if the size of the surface portion is reduced, the rigidity of the electric wire receiving surface portion is reduced, the electric wire can be easily inserted, and the contact state with the electric wire can be stabilized without plastic deformation of the locking piece portion. Therefore, the size of the electric wire insertion surface portion between the electric wire receiving surface portion and the locking piece portion can be reduced and the size can be reduced.
[0042]
According to the terminal device of claim 3, the wire receiving surface portion having the wire receiving surface on one surface, the wire insertion surface portion having the wire insertion hole, and the locking piece portion are sequentially bent, and the vicinity of the wire insertion hole of the wire insertion surface portion A slit on the lock piece side is provided along the direction of electric wire insertion from the electric wire insertion hole over the tip of the lock piece portion, and the electric wire receiving surface portion has an electric wire insertion hole from the vicinity of the electric wire insertion hole of the electric wire insertion surface portion. By providing the wire receiving surface side slit along the electric wire insertion direction from the respective portions divided by the lock piece side slit of the lock piece portion of the electric wire inserted into the electric wire insertion hole, while being elastically deformed respectively, and Each part of the electric wire inserted into the electric wire insertion hole divided by the slit on the electric wire receiving surface side of the electric wire receiving surface escapes to the locking piece part while elastically deforming, and between the electric wire receiving surface and the locking piece part Because it allows the insertion of electric wires into Even if the size of the wire insertion surface portion between the wire receiving surface portion and the locking piece portion is reduced, the rigidity of the wire receiving surface portion and the locking piece portion is reduced and the insertion property of the wire is good, and the locking piece portion is plastic. The contact state with the electric wire can be stabilized without being deformed. Therefore, the size of the electric wire insertion surface portion between the electric wire receiving surface portion and the locking piece portion can be reduced and the size can be reduced.
[0043]
According to the terminal device of the fourth aspect, in addition to the effect of the terminal device according to any one of the first to third aspects, since the leg portion protrudes from the edge portion on the opposite side of the electric wire insertion surface portion of the electric wire receiving surface portion, Can be connected and fixed to a substrate.
[0044]
According to the terminal device of the fifth aspect, in addition to the effect of the terminal device according to the fourth aspect, the leg portion is cut and raised from the electric wire receiving surface portion, so that the material can be better taken when cutting from the terminal material.
[Brief description of the drawings]
FIG. 1 is a perspective view of a terminal fitting showing an embodiment of a terminal device of the present invention.
FIG. 2 is a cross-sectional view of the terminal block in the assembled state.
FIG. 3 is a sectional view of the terminal block in an exploded state.
FIG. 4 is a bottom view of the case.
FIG. 5 is a bottom view of the cover.
FIG. 6 is a perspective view of a terminal fitting showing another embodiment of the terminal device of the present invention.
FIG. 7 is a cross-sectional view of a conventional terminal block.
[Explanation of symbols]
21 Wire receiving surface
22 Wire receiving surface
23 Wire insertion surface
24 chain lock
25 legs
26 Wire insertion hole
27 Slit side slit
29 Slit side slit

Claims

A wire receiving surface portion having a wire receiving surface on one surface;
A wire insertion surface portion that is bent from the wire reception surface portion to the wire reception surface side and has a wire insertion hole;
The locking piece part bent toward the electric wire receiving surface from the edge on the opposite side to the electric wire receiving surface portion of the electric wire insertion surface portion,
A terminal comprising: a locking piece side slit provided along the direction of inserting the electric wire from the electric wire insertion hole from the vicinity of the electric wire insertion hole of the electric wire insertion surface portion to the tip of the locking piece portion. apparatus.

A wire receiving surface portion having a wire receiving surface on one surface;
A wire insertion surface portion that is bent from the wire reception surface portion to the wire reception surface side and has a wire insertion hole;
The locking piece part bent toward the electric wire receiving surface from the edge on the opposite side to the electric wire receiving surface portion of the electric wire insertion surface portion,
The wire receiving surface portion includes a wire receiving surface side slit provided along the wire insertion direction from the wire insertion hole from the vicinity of the wire insertion hole of the wire insertion surface portion. .

A wire receiving surface portion having a wire receiving surface on one surface;
A wire insertion surface portion that is bent from the wire reception surface portion to the wire reception surface side and has a wire insertion hole;
The locking piece part bent toward the electric wire receiving surface from the edge on the opposite side to the electric wire receiving surface portion of the electric wire insertion surface portion,
The locking piece side slit provided along the electric wire insertion direction from the electric wire insertion hole over the tip of the locking piece portion from the vicinity of the electric wire insertion hole of the electric wire insertion surface portion,
The wire receiving surface portion includes a wire receiving surface side slit provided along the wire insertion direction from the wire insertion hole from the vicinity of the wire insertion hole of the wire insertion surface portion. .

The terminal device according to any one of claims 1 to 3, further comprising a leg portion protruding from an edge portion of the electric wire receiving surface portion opposite to the electric wire insertion surface portion.

The terminal device according to claim 4, wherein the leg portion is formed by cutting and raising from the wire receiving surface portion.