JP3791215B2

JP3791215B2 - relay

Info

Publication number: JP3791215B2
Application number: JP33472098A
Authority: JP
Inventors: 正浩忽那; 博昭濱口; 直樹金本
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 1998-11-25
Filing date: 1998-11-25
Publication date: 2006-06-28
Anticipated expiration: 2018-11-25
Also published as: JP2000164100A

Description

【０００１】
【発明の属する技術分野】
本発明は、ラッチングリレー（リモコンリレー）等のリレーに関するものである。
【０００２】
【従来の技術】
図１２〜図１５は従来のラッチングリレー（リモコンリレー）を示す。電磁駆動機構を構成する電磁石ブロック５は可動枠１が鉄芯２に吸引されて接離動作する電磁石装置３を電磁石ベース４に組み込んで構成してあり、接点ブロック８は図１５に示すように、上記電磁石ベース４とは別体の接点ベース６に接点装置７を組み込んで構成してあり、電磁石ブロック５とこれとは別体の接点ブロック８とを組合せた状態で電磁石装置３の可動枠１の駆動により接点装置７の接点切り換えを行うようになっている。
【０００３】
電磁石ベース４は角筒形又は有底角筒状（すなわち一端が開口した箱状）をしており、図１４に示すように一端面部が開口した有底の四角筒状（すなわち有底角筒状）をした外殻本体部１５の上部に偏平な角筒状をした補助外殻部１７を一体に形成して構成してあり、外殻本体部１５の底面部に該当する部分に端子挿入孔３２が穿孔してある。
【０００４】
また、角筒状をした電磁石ベース４の一端部の開口端部側は後述の接点ブロック８の四角筒状をしたハウジングである接点ベース６の被嵌合部１２が嵌合するための四角筒状の嵌合部１１となっている。嵌合部１１には係合孔１４を形成している。
【０００５】
図１２に示すように、外殻本体部１５の開口端部側の一端部及び補助外殻部１７には上下に対向する位置に後述の手動レバー部２１を挿通するための切欠部９２、９２ｂが設けてある。
【０００６】
電磁石装置３は図１２に示すように、コイルボビン３０，鉄芯２，ヨーク２２，磁性材からなる接極子２４、永久磁石４０、可動枠１、ゴム製静音ダンパー４９等により構成してある。
【０００７】
ヨーク２２は、ヨーク２２の主体を構成する磁性材からなるメインヨーク２３と、接極子２４と対向する磁極面を有する一対の磁性材からなるサイドヨーク２５とで構成してある。ここで、メインヨーク２３はコ字状をしており、該メインヨーク２３には鉄芯２の後端２ｂを嵌め込んでかしめ固定する孔２２ｃが設けられている。メインヨーク２３のコ字状をした両対向片の外面部にはそれぞれ後述の可動枠１の一対の腕部２８の軸受け部５４を回転自在に軸支するための軸部５１を設けてある。更に、このメインヨーク２３のコ字状をした両対向片の先端面部の両側に一対の係合溝部２６を形成し、サイドヨーク２５に係合溝部２６に係合する被係合部２７を設けてあり、係合溝部２６に被係合部２７を係合することで、コ字状をしたメインヨーク２３の先端部の両側にサイドヨーク２５を取付けてある。
【０００８】
コイルボビン３０にはコイルボビン３０を合成樹脂で成形する際にＴ型の鉄芯２を同時成形によりインサートしてある。該鉄芯２の両端部はコイルボビン３０から突出している。
【０００９】
コイルボビン３０には両側に鍔部７７が形成してあり、一方の鍔部７７にはコイル端子取付け凹部９３が設けてあり、このコイル端子取付け凹部９３に巻線９４の先端を接続するコイル端子６２を嵌め込んで取付けてある。
【００１０】
またコイルボビン３０には上記のように鉄芯２を同時一体成形してあって、鉄芯２の両端部がコイルボビン３０よりも突出しているが、図１２に示すように鉄芯２のＴ型先端２ａの突出部分の上下両側にはコイルボビン３０からの突出部６１を突出してある。そして一方の突出部６１はゴム製の静音ダンパー４９の取付け基台５０を前方へ突出しており、この取付け基台５０には静音ダンパー４９がダンパー押え板４９ａで押え付けるように取付けてある。
【００１１】
可動枠１は中央片１ｂから両腕部２８を突設した略コ字状をし、その両腕部２８の先端部には軸受け部５４が設けてある。軸受け部５４はヨーク２２の主体を構成するメインヨーク２３の両側にそれぞれ設けた軸部５１に回転自在に軸支されるものである。
【００１２】
可動枠１の中央片１ｂの内側面には嵌め込み凹所（図示せず）が形成してあり、この嵌め込み凹所に一対の接極子２４の先端部間に永久磁石４０を介在させたブロックの先端部が嵌め込まれて接着剤により接着して固着してある。接極子２４の磁極面にはレシジュアルプレートが取着される。
【００１３】
可動枠１は中央片１ｂから手動レバー部２１を図１２において上向きに突設してある。また、中央片１ｂから腕部２８の突出方向と反対方向に向けて第１突起部６３と第２突起部６４の２つの突起部を突設してある。
【００１４】
上記のように、コイルボビン３０、鉄芯２，ヨーク２２、接極子２４、永久磁石４０、可動枠１，静音ダンパー４９等を組立てて構成した電磁石装置３は電磁石ベース４の四角筒状をした外殻本体部１５の窓孔から内部に嵌め込まれて内装される。上記のようにして電磁石装置３を電磁石ベース４に嵌め込んで取付けた状態では図１４に示すように電磁石ベース４の底面部の端子挿入孔３２に電磁石装置３のコイルボビン３０のコイル端子６２が貫通して外部に突出するものである。
【００１５】
また、電磁石装置３を電磁石ベース４に嵌め込んで取付けた状態では手動レバー部２１は図１４のように切欠部９２ａ，９２ｂに挿通してあり、手動レバー部２１の先端部が外部に突出している。この手動レバー部２１を外部から操作することで、外部から可動枠１を回転させるとともに、補助接点ブロック１６の補助用の可動接点ばね３５を開閉できるようになっている。
【００１６】
外殻本体部１５に付設した筒状をした補助外殻部１７には開口から補助接点ブロック１６を嵌め込んで組み込んである。補助接点ブロック１６は図１２に示すように合成樹脂製のベース４４と、導電性の金属板からなる可動端子板３３と、導電性の金属板からなる固定端子板１９と、ばね弾性を有する導電'性金属板からなる可動接点ばね３５等により構成されており、合成樹脂製のベース４４には可動端子板３３と、固定端子板１９とをベース４４上に形成した嵌め込み溝１６ａ，１６ｂに後部を嵌め込んで略平行に配設するとともに、その後端を外方向に突出してある。固定端子板１９は先端の可動端子板３３側面に固定接点１９ａを固着してある。
【００１７】
可動接点ばね３５は一端を可動端子板３３の中間部の固定端子板１９側の側面に鋲等により固定されて、図１４に示すように自由端の近傍側面に設けた可動接点３５ａを固定端子板１９の他端に設けた固定接点１９ａに弾性により接触させている。そして可動端子板３３の他端及び可動接点ばね３５の自由端は、補助接点ブロック１６を補助外殻部１７に嵌め込んだ際に、切欠部９２ａ，９２ｂに挿通された手動レバー部２１の側面に対向するような長さに形成され、可動接点ばね３５の自由端は手動レバー部２１の先端側面に形成せる補助接点駆動部２１ａに弾接している。
【００１８】
而して補助接点ブロック１６を補助外殻部１７に嵌め込んで組み込んだ場合、上記手動レバー部２１の先端部の外部に突出した部分を操作して可動枠１を回転させることにより、補助接点ブロック１６の可動接点ばね３５の自由端を手動レバー部２１の補助接点駆動部２１ａにより押動して、可動接点ばね３５の可動接点３５ａを固定接点１９ａより開離させることができるようになっている。
【００１９】
つまり、手動レバー部２１を外部から操作することで、電磁石装置３の可動枠１の手動操作と補助接点ブロック１６の接点開閉とを行うことができるようになっている。
【００２０】
接点ブロック８は図１２に示すように、四角筒状をした接点ベース６内に接点装置７を内装して構成してある。四角筒状をした接点ベース６の一端部は四角筒状をした電磁石ベース４の一端部の嵌合部１１と嵌合するための四角筒状をした被嵌合部１２が形成されている。また接点ベース６の他端部には他の接点ブロック８の接点ベース６の被嵌合部１２と嵌合できるように嵌合部１１’を設けてある。
【００２１】
そして、被嵌合部１２に係合突起１３を、嵌合部１１’に係合孔１４’を形成してある。また、接点ブロック８の内部は仕切壁１０１により２室に仕切ってある。
【００２２】
接点装置７は可動端子部７６と固定端子部７８とで構成してある。可動端子部７６は図１２、図１５に示すように、可動端子７９にメイン可動接点８０を設けたメイン可動ばね８１と、アーク可動接点８２を設けた反転ばねからなるアーク可動ばね８３とを固着して構成してあり、また、固定端子部７８は図１２，図１５に示すように、固定端子８４にメイン可動接点８０と対向するメイン固定接点８５と、アーク可動接点８２と対向するアーク固定接点８６とを設けて構成してある。
【００２３】
接点ベース６の仕切壁１０１で仕切った一方の室には可動端子部７６が納装される。可動端子７９は両側に対向する突片を有するコ字状をしており、対向する突片の一方にメイン可動接点８０を設けたメイン可動ばね８１を固着すると共に他方の突片にアーク可動接点８２を設けたアーク可動ばね８３を固着して全体がＵ字状をした可動端子部７６を構成してある。また、メイン可動接点８０側の導電板１０６に一端部を溶着して接続し且つ可動端子７９に他端部を溶着して接続した編組線９１を、Ｕ字状をした可動端子部７６のメイン可動ばね８１に沿わせてある。導電板１０６はメイン可動ばね８１の固定端子８４に対向する面と反対側の面に配置され、反対側に設けられるメイン可動接点８０の裏部から突出し、メイン可動ばね８１を貫通したかしめ突起（図示せず）をかしめ固定し、メイン可動接点８０とともにメイン可動ばね８１に固定されてその両側縁をメイン可動ばね８１の両側方へ突出させている。
【００２４】
固定端子８４はコ字状をしており、一側片にはメイン固定接点８５が設けてあり、他側片にはアーク固定接点８６が設けてあり、コ字状をした固定端子８４を電磁石ベース４の仕切壁１０１により仕切った他方の室から固定端子８４の両側片を仕切板１０壁の孔部１０７に挿入して一方の室内に突入させるものであり、メイン可動接点８０とメイン固定接点８５とが対向し、アーク可動接点８２とアーク固定接点８６とが対向しているものである。またメイン固定接点８５を設けた部位の下方には図１３に示すように両側片の先端をメイン可動ばね８１側の導電体１０６の両側縁に対向させ、アークを吸引駆動するコ字型の電磁鉄片３７をかしめ鋲２０で固定端子８４にかしめ固定してある。
【００２５】
ここで、アーク可動接点８２とアーク固定接点８６とでアーク接点６７を構成してあり、上記アーク可動接点８２とアーク固定接点８６とはいずれも耐溶着性能の良好な材料により形成してある。
【００２６】
また、メイン可動接点８０とメイン固定接点８５とでメイン接点６８を構成してあり、上記メイン可動接点８０とメイン固定接点８５とはいずれも接触抵抗性能の良好な材料により形成してある。
【００２７】
接点ベース６の仕切壁１０１で仕切った一方の室にはカード１０を回転自在に内装してある。カード１０は図１４に示すように仕切壁１０１から突出した軸部１１４にカード１０の一端部の孔１１５を回転自在に取付けてある。
【００２８】
而して内側の接点ブロック８では、電磁石ベース４の四角筒状をした嵌合部１１に接点ベース６の四角筒状をした被嵌合部１２を嵌合し、係合突起１３を係合孔１４に係合することで、電磁石ベース４に別体の接点ベース６を接合するものである。
【００２９】
このように電磁石ベース４に別体の接点ブロック８の接点ベース６を接合した際、電磁石ブロック５に設けた回転運動をする可動枠１と、接点ブロック８に設けた回転運動をするカード１０とは機械的に接続されるものである。
【００３０】
すなわち既に説明したように、可動枠１の回転先端部である中央片１ｂに第１突起部６３と第２突起部６４とを突設する。そして、カード１０には上記第１突起部６３により作用される第１作用部６５と、第２突起部６４により作用される第２作用部６６とを設けるものである。
【００３１】
ここで、接点装置７のカード１０は可動枠１の第１、第２突起部６３，６４の動きを第１、第２作用部６５，６６に受けて連動回転し、オン動作時にはアーク接点６７をオフからオンに切り換えた後アーク可動ばね８１の反転によりオフさせ、またメイン接点６８をアーク接点６７のオン後にオフからオンに切り換え、またオフ動作時にはアーク接点６７をオフさせながら，メイン接点６８をオフからオンへ切り替えるよう動作する。
【００３２】
つまり可動枠１は電磁石装置３の巻線への励磁／逆励磁により永久磁石４０で夫々が異なる磁極面となっている一対の接極子２４の一方を鉄芯２の磁極面及びサイドヨーク２５に吸引させて可動枠１を回転させ、可動枠１の可動によりカード１０を回転して接点装置７を駆動すると共に、可動枠１の回転により補助接点ブロック１６の可動接点ばね３５を押し動かして或いは元に戻して可動接点３５ａと固定接点１９ａとを開離或いは接触させるようになっている。
【００３３】
ところで、電磁石ベース４の四角筒状をした嵌合部１１に接点ベース６の四角筒状をした被嵌合部１２を嵌合し、係合突起１３を係合孔１４に係合することで、電磁石ベース４に別体の接点ベース６を接合し、電磁石ブロック５に設けた回転運動をする可動枠１と、接点ブロック８に設けた回転運動をするカード１０とを機械的に接続することで、片切りのリレーを構成するのであるが、図示する例では二組の接点ブロック８を重ねて両切り型を構成している。
【００３４】
すなわち、内側の接点ブロック８の四角筒状をした嵌合部１１’に外側の接点ブロック８の四角筒状をした被嵌合部１２を嵌合し、係合突起１３を係合孔１４に係合することで、接点ブロック８を重ねて着脱自在に接合できるものである。ここで、両接点ブロック８には図１２に示すような絶縁板１１８を介在して接合するものである。外側に位置する接点ブロック８には係合突起１３付の絶縁板１１８’を取付け、係合突起１３を外側に位置する接点ブロック８の係合孔１４に係合するものである。
【００３５】
また、カード１０には他の接点ブロック８に設けたカード１０とピン７１により連結するための孔部７２が設けてある。
【００３６】
また、各接点ベース６に設けた仕切壁１０１及び絶縁板１１８にはそれぞれ孔部１１９，１２０が設けてある。そして、一方のカード１０の孔部７２からピン７１を挿入し、該ピン７１を孔部１１９，１２０を挿通して他方のカード１０の孔部７２に嵌合するものである。
【００３７】
以上のように構成されたラッチングリレーは電磁石ブロック５の励磁により或いは手動レバー部２１の手動操作により接点ブロック８内のカード１０を介して接点装置７の開閉駆動ができるようなっている。
【００３８】
【発明が解決しようとする課題】
ところで、従来の接点装置７において、編組線９１を溶着する導電板１０６が平板状であるため、編組線９１の溶着する位置の位置決めが難しいという問題があった。
【００３９】
また電磁鉄片３７のかしめ固定が緩んだ場合、対向する導電板１０６に溶着する固定端子８４にかしめ固定された電磁鉄片３７の両側片の先端が導電板１０６に接触して溶着するという問題があった。
【００４０】
本発明は、上記の問題点に鑑みて為されたもので、請求項１の発明の目的とするところは、可動接点ばねに固定する導電板への編組線の溶着部の位置決めが容易な上に、アーク吸引力の増加が図れるリレーを提供することにある。
【００４１】
請求項２の目的とするところは、上記請求項１の目的に加えて、固定端子側にかしめ固定される鉄片がかしめ固定の緩みがあっても、鉄片と、可動接点ばね側の導電板との距離を確保できるリレーを提供することにある。
【００４２】
請求項３の目的とするところは、請求項１の目的に加えて、固定端子側の鉄片が導電板に接触することがないように鉄片を固定したリレーを提供することにある。
【００４３】
【課題を解決するための手段】
上記目的を達成するために、請求項１の発明では、固定接点を設けた固定端子と、該固定端子に対して対向配置され、電磁駆動機構により固定端子に対して近接・開離するように動かされる可動接点ばねの一端を固着した可動端子と、上記固定端子側に設けられ、両側片の先端を上記固定端子の板面よりも上記可動接点ばね側へ突出させたコ字型の鉄片と、上記可動接点ばねに上記固定接点に接触・開離する可動接点を設けるとともに、上記鉄片の両側片先端に先端が夫々対向する突出片を一体形成した導電板とを有し、該導電板の両側突出片間の板面を、上記可動端子に一端を溶着した編組線の他端を溶着する溶着部とした接点装置を備え、上記鉄片は両側片の内側基部に上記固定端子の長手方向に凹溝を形成するとともに、中央片に上記固定端子の背面に突設したかしめ固定用だぼを挿入するスリットを形成し、両側片間に上記固定端子を挿入して上記固定端子の両側縁を凹溝内に嵌め、且つ上記固定端子の挿入方向に設けた上記スリットの開口部より上記かしめ固定用だぼを上記スリット内に挿入してかしめ固定して成ることを特徴とする。
【００４５】
請求項２の発明では、固定接点を設けた固定端子と、該固定端子に対して対向配置され、電磁駆動機構により固定端子に対して近接・開離するように動かされる可動接点ばねの一端を固着した可動端子と、上記固定端子側に設けられ、両側片の先端を固定端子の板面よりも上記可動接点ばね側へ突出させたコ字型の鉄片と、上記可動接点ばねに上記固定接点に接触・開離する可動接点を設けるとともに、上記鉄片の両側片先端に先端が夫々対向する突出片を一体形成した導電板とを有し、該導電板の両側突出片間の板面を、上記可動端子に一端を溶着した編組線の他端を溶着する溶着部とした接点装置を備え、上記鉄片は両側片の内側基部に凹溝を上記固定端子の長手方向に形成するとともに、上記接点装置を収納するハウジングの固定端子の背面に近接した内壁に形成した凹部に中央片を嵌め込み固定し、両側片を上記固定端子の両側より上記可動接点ばね方向へ突出して成ることを特徴とする。
【００４６】
【発明の実施の形態】
以下本発明を実施形態により説明する。
【００４７】
（実施形態１）
図２は本実施形態の分解斜視図を示し、図示する本実施形態は、接点装置７のメイン可動接点８０をメイン可動接点ばね８１に固着される導電板１０６’の構成が上述の従来例とは異なる他は基本的に従来例と同じ構成を有するものであり、図において上記従来例と同じ動作を無す同じ構成要素には同じ番号、記号を付して、これらの構成要素の説明は従来の技術の欄で説明を参照することにし、ここでは省略する。
【００４８】
次に本実施形態の主要な構成である導電板１０６’について詳説する。本実施形態に用いる導電板１０６’は図１、図３，図４に示すようにメイン可動接点ばね８１を挟んでメイン可動接点８０をかしめ固定する四角平板状の固定部５５と、この固定部５５の中央下端よりやや後方へ延出した連結部５６の下端が中央片の中央上端に一体連結されたコ字型部５７とで構成されており、コ字型部５７の両側片である突出片５７ａ，５７ａ間の板面は、固定部５５のメイン可動接点ばね８１が接面する板面よりやや後方に位置し、この両突出片５７ａ，５７ａ間の板面が編組線９１の一端を溶着する溶着部を構成する。
【００４９】
而して導電板１０６’を可動接点ばね８１に固着するに当たっては、一端が可動端子７９に溶着される編組線９１の他端を上記溶着部に溶着し、しかる後にメイン可動接点ばね８１を貫通させたメイン可動接点８０のかしめ用だぼ８０ａを、導電板１０６’の固定部５５の挿通孔５５ａに挿通させてその先端をかしめることで導電板１０６’を可動接点ばね８１に固着するのである。このときメイン可動接点ばね８１の両側から導電板１０６’のコ字型部５７の両突出片５７ａ、５７ａがメイン固定接点８５を設けている固定端子８４側方向へ突出し、その先端を電磁鉄片３７の両側片の先端と対向するようになる。
【００５０】
このような構成の本実施形態にあっては、編組線９１の溶着位置の位置決めが容易となる上に、電磁鉄片３７の両側片の先端とコ字型部５７の両突出片５７ａ，５７ａとで図５に示すようにアーク発生時に磁気回路を構成して従来に比べて電磁鉄板３７の吸引力が増加することになる。またメッキ加工時の重なり防止が図れる。
【００５１】
（実施形態２）
図６は本実施形態の分解斜視図を示し、図示する本実施形態は、接点装置７の電磁鉄片３７’の固定端子８４に固着する構成が実施形態１と異なるが、可動接点ばね８１に固着される導電板１０６’の構成は実施形態１と同じである。従って図において、実施形態１或いは従来例と同じ動作を無す同じ構成要素には同じ番号、記号を付し、これらの構成要素の説明は従来の技術の欄で説明を参照することにして、ここでは省略する。
【００５２】
次に本実施形態の主要な構成である電磁鉄片３７’の固定端子８４に固着する構成について詳説する。本実施形態に用いる固定端子８４はメイン固定接点８５をかしめ固定した部位の下方に垂下せる垂下片８４ａの背面に図７、図８に示すようにかしめ固定するためのだぼ５８を一体突設してある。一方電磁鉄片３７’は両側片３７ａ、３７ａの内側基部に、上記の固定端子８４の垂下片８４ａの長手方向に対応するように凹溝３７ｂを形成してある。この凹溝３７ｂの幅は固定端子８４の垂下片８４ａの肉厚とほぼ同じとし、垂下片８４ａの側縁が嵌合できるようになっている。また電磁鉄片３７’の中央片には上端が開口したスリット５９を穿設している。
【００５３】
そして電磁鉄片３７’を固定端子８４に固定するに当たっては、固定端子８４の垂下片８４ａの下端を電磁鉄片３７’の凹溝３７ｂ，３７ｂ間に入れて電磁鉄片３７’を上方向に動かし、スリット５９内にだぼ５８を上端開口より入れ、だぼ５８をかしめれば良い。
【００５４】
固定端子８４の垂下片８４ａに電磁鉄片３７’を固着した状態では電磁鉄片３７’の両側片３７ａ，３７ａが可動接点ばね８１方向へ突出する。
【００５５】
本実施形態によれば、実施形態１の利点に加えて、電磁鉄片３７’のかしめ固定が緩んでも、固定端子８４の垂下片８４ａを内包する形と凹溝３７ｂに垂下片８４ａの両側縁が嵌合することにより、電磁鉄片３７’が導電板１０６’側へ近ずくのを規制し、電磁鉄片３７’が導電板１０６’に接触して溶着されるを防ぐことができる。
【００５６】
（実施形態３）
図９は本実施形態の分解斜視図を示し、図示する本実施形態は、接点装置７の電磁鉄片３７’の固定端子８４に固着する構成が実施形態１、２と異なるが、可動接点ばね８１に固着される導電板１０６’の構成は実施形態１と同じであり、またその他の構成も上述の従来例と同じものである。従って図において、実施形態１或いは従来例と同じ動作を無す同じ構成要素には同じ番号、記号を付して、これらの構成要素の説明は従来の技術の欄で説明を参照することにし、ここでは省略する。
【００５７】
次に本実施形態の主要な構成である電磁鉄片３７”の固定端子８４に固着する構成について詳説する。上記従来例、実施形態１，２では固定端子８４へ電磁鉄片３７或いは３７”をかしめ固定する構造であったが、本実施形態では図１０、図１１に示すように固定端子８４の垂下片８４ａの背方近傍に位置する接点ベース６の内側面に電磁鉄片３７”の中央片を挟み込んで固定する嵌合凹部６０を並行する２条のリブ６０ａ，６０ａ間に形成し、電磁鉄片３７”をかしめ固定によらずに固定端子８４の垂下片８４ａの背方側に配設する構成としている。
【００５８】
電磁鉄片３７”を嵌合凹部６０に固着した状態では電磁鉄片３７’の両側片３７ａ，３７ａは垂下片８４ａの板面よりも可動接点ばね８１方向へ突出する。
【００５９】
本実施形態によれば、実施形態１の利点に加えて、かしめ固定を用いないため組み付け作業が容易な上に、仮に固着状態が緩んでも電磁鉄片３７”が導電板１０６’側へ近ずくのを垂下片８４ａにより規制して、電磁鉄片３７”が導電板１０６’に接触して溶着されるを防ぐことができる。
【００６０】
【発明の効果】
請求項１の発明では、固定接点を設けた固定端子と、該固定端子に対して対向配置され、電磁駆動機構により固定端子に対して近接・開離するように動かされる可動接点ばねの一端を固着した可動端子と、上記固定端子側に設けられ、両側片の先端を上記固定端子の板面よりも上記可動接点ばね側へ突出させたコ字型の鉄片と、上記可動接点ばねに上記固定接点に接触・開離する可動接点を設けるとともに、上記鉄片の両側片先端に先端が夫々対向する突出片を一体形成した導電板とを有し、該導電板の両側突出片間の板面を、上記可動端子に一端を溶着した編組線の他端を溶着する溶着部とした接点装置を備えたので、編組線の溶着位置の位置決めが容易となる上に、鉄片の両側片の先端と対向する導電板の突出片とで磁気回路を構成して従来に比べて鉄板のアーク吸引力が増加することになり。またメッキ加工時の重なり防止が図れるという効果がある。
【００６１】
加えて、上記鉄片は両側片の内側基部に固定端子の長手方向に凹溝を形成するとともに、中央片に固定端子の背面に突設したかしめ固定用だぼを挿入するスリットを形成し、両側片間に固定端子を挿入して固定端子の両側縁を凹溝内に嵌め、且つ固定端子の挿入方向に設けた上記スリットの開口部より上記かしめ固定用だぼをスリット内に挿入してかしめ固定したので、仮にかしめ固定が緩んでも鉄片が固定端子により規制されて導電板に接触するのを防止でき、そのため鉄片が導電板に溶着されないという効果がある。
【００６２】
請求項２の発明では、固定接点を設けた固定端子と、該固定端子に対して対向配置され、電磁駆動機構により固定端子に対して近接・開離するように動かされる可動接点ばねの一端を固着した可動端子と、上記固定端子側に設けられ、両側片の先端を固定端子の板面よりも上記可動接点ばね側へ突出させたコ字型の鉄片と、上記可動接点ばねに上記固定接点に接触・開離する可動接点を設けるとともに、上記鉄片の両側片先端に先端が夫々対向する突出片を一体形成した導電板とを有し、該導電板の両側突出片間の板面を、上記可動端子に一端を溶着した編組線の他端を溶着する溶着部とした接点装置を備え、上記鉄片は両側片の内側基部に凹溝を上記固定端子の長手方向に形成するとともに、上記接点装置を収納するハウジングの固定端子の背面に近接した内壁に形成した凹部に中央片を嵌め込み固定し、両側片を上記固定端子の両側より上記可動接点ばね方向へ突出してあるので、請求項１の発明の編組線の溶着位置の位置決めが容易となる上に、鉄片の両側片の先端と対向する導電板の突出片とで磁気回路を構成して従来に比べて鉄板のアーク吸引力が増加することになり、またメッキ加工時の重なり防止が図れるという効果に加えて、かしめ固定を用いないため組み付け作業が容易な上に、仮に固着状態が緩んでも電磁鉄片が固定端子により規制されて導電板に接触するのを防止でき、そのため鉄片が導電板に溶着されないという効果がある。
【図面の簡単な説明】
【図１】本発明の実施形態１の要部の拡大斜視図である。
【図２】同上の全体の分解斜視図である。
【図３】（ａ）は同上に用いる導電板の側面図である。
（ｂ）は同上に用いる導電板の正面図である。
【図４】同上に用いられる接点ブロックの一部破断せる背面図である。
【図５】同上に用いられる導電板と電磁鉄片との磁気回路の説明図である。
【図６】本発明の実施形態２の全体の分解斜視図である。
【図７】同上の要部の一部破断せる拡大斜視図である。
【図８】（ａ）は同上に用いる接点ブロックの一部省略せる正面図である。
（ｂ）は同上に用いる接点ブロックの一部破断せる背面図である。
【図９】本発明の実施形態３の全体の分解斜視図である。
【図１０】同上の要部の一部破断せる拡大斜視図である。
【図１１】（ａ）は同上に用いる接点ブロックの一部省略せる正面図である。
（ｂ）は同上に用いる接点ブロックの一部破断せる背面図である。
【図１２】従来例の全体の分解斜視図である。
【図１３】同上に用いる電磁鉄片部位の一部せる拡大斜視図である。
【図１４】（ａ）は同上に用いる電磁ブロックの一部破断せる上面図である。
（ｂ）は同上に用いる電磁ブロックの側面断面図
（ｃ）は同上に用いる電磁ブロックの背面図である。
【図１５】（ａ）は同上に用いる接点ブロックの上面図である。
（ｂ）は同上に用いる接点ブロックの一部省略せる正面図である。
（ｃ）は同上に用いる接点ブロックの下面図である。
（ｄ）は同上に用いる接点ブロックの側面図である。
（ｅ）は同上に用いる接点ブロックの一部破断せる背面図である。
【符号の説明】
５５固定部
５６連結部
５７コ字型部
５７ａ突出片
８０ａかしめ用だぼ
８１メイン可動接点ばね
９１編組線
１０６’ 導電板[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a relay such as a latching relay (remote control relay).
[0002]
[Prior art]
12 to 15 show a conventional latching relay (remote control relay). The electromagnet block 5 constituting the electromagnetic drive mechanism is constructed by incorporating an electromagnet device 3 in which the movable frame 1 is attracted to the iron core 2 to move toward and away from the electromagnet base 4, and the contact block 8 is as shown in FIG. The contact device 7 is incorporated in the contact base 6 separate from the electromagnet base 4, and the movable frame of the electromagnet device 3 is combined with the electromagnet block 5 and the contact block 8 separate from the electromagnet block 5. Switching of the contact of the contact device 7 is performed by driving 1.
[0003]
The electromagnet base 4 has a rectangular tube shape or a bottomed rectangular tube shape (that is, a box shape with one end opened), and as shown in FIG. 14, a bottomed square tube shape (that is, a bottomed rectangular tube with one end surface portion opened). The auxiliary shell 17 having a flat rectangular tube shape is integrally formed on the upper portion of the outer shell main body 15, and a terminal is inserted into a portion corresponding to the bottom surface of the outer shell main body 15. A hole 32 is perforated.
[0004]
Further, the open end side of one end of the rectangular magnet-like electromagnet base 4 is a square cylinder for fitting the fitted portion 12 of the contact base 6 which is a square-cylindrical housing of a contact block 8 described later. It becomes the shape fitting part 11. An engagement hole 14 is formed in the fitting portion 11.
[0005]
As shown in FIG. 12, notches 92 and 92b for inserting a manual lever portion 21 (described later) into the one end portion on the opening end side of the outer shell main body portion 15 and the auxiliary outer shell portion 17 at positions facing vertically. Is provided.
[0006]
As shown in FIG. 12, the electromagnet device 3 includes a coil bobbin 30, an iron core 2, a yoke 22, an armature 24 made of a magnetic material, a permanent magnet 40, a movable frame 1, a rubber silent damper 49, and the like.
[0007]
The yoke 22 includes a main yoke 23 made of a magnetic material constituting the main body of the yoke 22 and a side yoke 25 made of a pair of magnetic materials having a magnetic pole surface facing the armature 24. Here, the main yoke 23 is U-shaped, and the main yoke 23 is provided with a hole 22c for fitting and fixing the rear end 2b of the iron core 2 therein. Shaft portions 51 for rotatably supporting bearing portions 54 of a pair of arm portions 28 of the movable frame 1 described later are provided on the outer surface portions of the U-shaped opposing pieces of the main yoke 23. Further, a pair of engaging groove portions 26 are formed on both sides of the front end surface portions of the U-shaped opposing pieces of the main yoke 23, and an engaged portion 27 that engages with the engaging groove portion 26 is provided on the side yoke 25. The side yoke 25 is attached to both sides of the front end portion of the U-shaped main yoke 23 by engaging the engaged portion 27 with the engaging groove portion 26.
[0008]
When the coil bobbin 30 is formed of synthetic resin, the T-type iron core 2 is inserted into the coil bobbin 30 by simultaneous molding. Both ends of the iron core 2 protrude from the coil bobbin 30.
[0009]
The coil bobbin 30 has flange portions 77 on both sides, and one flange portion 77 is provided with a coil terminal mounting recess 93, and a coil terminal 62 that connects the tip of the winding 94 to the coil terminal mounting recess 93. Is fitted and installed.
[0010]
The coil bobbin 30 is integrally formed with the iron core 2 as described above, and both ends of the iron core 2 protrude from the coil bobbin 30. However, as shown in FIG. Projecting portions 61 from the coil bobbin 30 are projected on both upper and lower sides of the projecting portion 2a. One projecting portion 61 projects the mounting base 50 of the rubber-made silent damper 49 forward, and the silent damper 49 is attached to the mounting base 50 so as to be pressed by the damper pressing plate 49a.
[0011]
The movable frame 1 is substantially U-shaped with both arm portions 28 projecting from the central piece 1 b, and a bearing portion 54 is provided at the tip of both arm portions 28. The bearing portions 54 are rotatably supported by shaft portions 51 provided on both sides of the main yoke 23 constituting the main body of the yoke 22.
[0012]
A fitting recess (not shown) is formed on the inner surface of the central piece 1b of the movable frame 1, and the permanent magnet 40 is interposed between the tip portions of the pair of armatures 24 in the fitting recess. The tip portion is fitted and adhered and fixed by an adhesive. A sequential plate is attached to the magnetic pole surface of the armature 24.
[0013]
The movable frame 1 has a manual lever portion 21 protruding upward from the center piece 1b in FIG. Further, two projecting portions of a first projecting portion 63 and a second projecting portion 64 are provided so as to project from the center piece 1b in the direction opposite to the projecting direction of the arm portion 28.
[0014]
As described above, the electromagnet device 3 formed by assembling the coil bobbin 30, the iron core 2, the yoke 22, the armature 24, the permanent magnet 40, the movable frame 1, the silent damper 49, etc. The shell body 15 is fitted into the interior through the window hole. When the electromagnet device 3 is fitted and attached to the electromagnet base 4 as described above, the coil terminal 62 of the coil bobbin 30 of the electromagnet device 3 penetrates the terminal insertion hole 32 on the bottom surface of the electromagnet base 4 as shown in FIG. Projecting outside.
[0015]
Further, in a state where the electromagnet device 3 is fitted and attached to the electromagnet base 4, the manual lever portion 21 is inserted into the notches 92a and 92b as shown in FIG. 14, and the distal end portion of the manual lever portion 21 protrudes to the outside. Yes. By operating the manual lever portion 21 from the outside, the movable frame 1 can be rotated from the outside, and the auxiliary movable contact spring 35 of the auxiliary contact block 16 can be opened and closed.
[0016]
The auxiliary contact block 16 is fitted into the cylindrical auxiliary outer shell portion 17 attached to the outer shell main body portion 15 from the opening. As shown in FIG. 12, the auxiliary contact block 16 includes a base 44 made of synthetic resin, a movable terminal plate 33 made of a conductive metal plate, a fixed terminal plate 19 made of a conductive metal plate, and a conductive material having spring elasticity. It is composed of a movable contact spring 35 made of a metallic metal plate, and the like. The synthetic resin base 44 has a movable terminal plate 33 and a fixed terminal plate 19 formed in the fitting grooves 16a and 16b formed on the base 44 at the rear. Are fitted and arranged substantially in parallel, and the rear end protrudes outward. The fixed terminal plate 19 has a fixed contact 19a fixed to the side of the movable terminal plate 33 at the tip.
[0017]
One end of the movable contact spring 35 is fixed to a side surface of the intermediate portion of the movable terminal plate 33 on the side of the fixed terminal plate 19 with a scissors or the like, and a movable contact 35a provided on the side surface near the free end as shown in FIG. The fixed contact 19a provided at the other end of the plate 19 is brought into contact with elasticity. The other end of the movable terminal plate 33 and the free end of the movable contact spring 35 are arranged on the side surface of the manual lever portion 21 inserted through the notches 92a and 92b when the auxiliary contact block 16 is fitted into the auxiliary outer shell portion 17. The free end of the movable contact spring 35 is in elastic contact with the auxiliary contact driving portion 21a formed on the tip side surface of the manual lever portion 21.
[0018]
Thus, when the auxiliary contact block 16 is fitted and incorporated in the auxiliary outer shell portion 17, the auxiliary contact block 16 is rotated by rotating the movable frame 1 by operating the portion protruding to the outside of the front end portion of the manual lever portion 21. The free end of the movable contact spring 35 of the block 16 is pushed by the auxiliary contact drive portion 21a of the manual lever portion 21, so that the movable contact 35a of the movable contact spring 35 can be separated from the fixed contact 19a. Yes.
[0019]
That is, the manual operation of the movable frame 1 of the electromagnet device 3 and the contact opening / closing of the auxiliary contact block 16 can be performed by operating the manual lever portion 21 from the outside.
[0020]
As shown in FIG. 12, the contact block 8 is configured by incorporating a contact device 7 in a contact base 6 having a rectangular tube shape. One end of the rectangular cylindrical contact base 6 is formed with a quadrangular tubular fitting portion 12 for fitting with the fitting portion 11 of one end of the square cylindrical electromagnet base 4. Further, a fitting portion 11 ′ is provided at the other end portion of the contact base 6 so as to be fitted to the fitted portion 12 of the contact base 6 of another contact block 8.
[0021]
And the engagement protrusion 13 is formed in the to-be-fitted part 12, and engagement hole 14 'is formed in fitting part 11'. The inside of the contact block 8 is divided into two chambers by a partition wall 101.
[0022]
The contact device 7 includes a movable terminal portion 76 and a fixed terminal portion 78. As shown in FIGS. 12 and 15, the movable terminal portion 76 fixes a main movable spring 81 provided with a main movable contact 80 on the movable terminal 79 and an arc movable spring 83 formed of a reversing spring provided with an arc movable contact 82. As shown in FIGS. 12 and 15, the fixed terminal portion 78 has a main fixed contact 85 that faces the main movable contact 80 and an arc fixed that faces the arc movable contact 82. A contact 86 is provided.
[0023]
A movable terminal portion 76 is mounted in one chamber partitioned by the partition wall 101 of the contact base 6. The movable terminal 79 has a U-shape having projecting pieces opposed to both sides, a main movable spring 81 provided with a main movable contact 80 is fixed to one of the opposed projecting pieces, and an arc movable contact is attached to the other projecting piece. An arc movable spring 83 provided with 82 is fixed to constitute a movable terminal portion 76 having a U-shape as a whole. Further, a braided wire 91 having one end welded and connected to the conductive plate 106 on the main movable contact 80 side and the other end welded to the movable terminal 79 is connected to the main of the U-shaped movable terminal 76. Along the movable spring 81. The conductive plate 106 is disposed on the surface opposite to the surface facing the fixed terminal 84 of the main movable spring 81, protrudes from the back of the main movable contact 80 provided on the opposite side, and is a caulking protrusion (through the main movable spring 81). (Not shown) is fixed by caulking and is fixed to the main movable spring 81 together with the main movable contact 80, and both side edges thereof protrude to both sides of the main movable spring 81.
[0024]
The fixed terminal 84 is U-shaped, a main fixed contact 85 is provided on one side piece, an arc fixed contact 86 is provided on the other side piece, and the U-shaped fixed terminal 84 is an electromagnet. Inserting both side pieces of the fixed terminal 84 from the other chamber partitioned by the partition wall 101 of the base 4 into the hole 107 of the wall of the partition plate 10 to enter one chamber, the main movable contact 80 and the main fixed contact The arc movable contact 82 and the arc fixed contact 86 are opposed to each other. Further, below the portion where the main fixed contact 85 is provided, as shown in FIG. 13, the U-shaped electromagnetics for attracting and driving the arc with the tips of both side pieces opposed to the both side edges of the conductor 106 on the main movable spring 81 side are shown. The iron piece 37 is caulked and fixed to the fixed terminal 84 by the caulking rod 20.
[0025]
Here, the arc movable contact 82 and the arc fixed contact 86 constitute an arc contact 67, and both the arc movable contact 82 and the arc fixed contact 86 are made of a material having good welding resistance.
[0026]
The main movable contact 80 and the main fixed contact 85 constitute a main contact 68, and both the main movable contact 80 and the main fixed contact 85 are made of a material having good contact resistance performance.
[0027]
A card 10 is rotatably mounted in one chamber partitioned by the partition wall 101 of the contact base 6. As shown in FIG. 14, the card 10 has a hole 115 at one end of the card 10 rotatably attached to a shaft 114 protruding from the partition wall 101.
[0028]
Thus, in the inner contact block 8, the quadrangular fitting portion 12 of the contact base 6 is fitted into the rectangular fitting portion 11 of the electromagnet base 4, and the engagement protrusion 13 is engaged. By engaging with the hole 14, a separate contact base 6 is joined to the electromagnet base 4.
[0029]
Thus, when the contact base 6 of the separate contact block 8 is joined to the electromagnet base 4, the movable frame 1 that performs the rotational motion provided in the electromagnet block 5, and the card 10 that performs the rotational motion provided in the contact block 8, Are mechanically connected.
[0030]
That is, as already described, the first protrusion 63 and the second protrusion 64 are projected from the central piece 1b, which is the rotation tip of the movable frame 1. The card 10 is provided with a first action part 65 acted by the first projection part 63 and a second action part 66 acted by the second projection part 64.
[0031]
Here, the card 10 of the contact device 7 receives the movement of the first and second projecting portions 63 and 64 of the movable frame 1 by the first and second action portions 65 and 66 and rotates in conjunction with each other. Is turned off by turning the arc movable spring 81, the main contact 68 is switched from off to on after the arc contact 67 is turned on, and the arc contact 67 is turned off during the off operation. To switch from off to on.
[0032]
That is, in the movable frame 1, one of the pair of armatures 24, which have different magnetic pole faces in the permanent magnet 40 by excitation / reverse excitation to the winding of the electromagnet device 3, is used as the magnetic pole face of the iron core 2 and the side yoke 25. The movable frame 1 is rotated by suction, the card 10 is rotated by the movement of the movable frame 1 to drive the contact device 7, and the movable contact spring 35 of the auxiliary contact block 16 is pushed by the rotation of the movable frame 1 or Returning to the original position, the movable contact 35a and the fixed contact 19a are separated or brought into contact with each other.
[0033]
By the way, the fitting portion 11 having the rectangular cylindrical shape of the contact base 6 is fitted to the fitting portion 11 having the rectangular cylindrical shape of the electromagnet base 4, and the engaging protrusion 13 is engaged with the engaging hole 14. A separate contact base 6 is joined to the electromagnet base 4 and the movable frame 1 provided in the electromagnet block 5 for rotational movement is mechanically connected to the card 10 provided for rotation in the contact block 8. In the example shown in the figure, two sets of contact blocks 8 are overlapped to form a double cut type.
[0034]
In other words, the fitting portion 11 ′ having the rectangular cylindrical shape of the inner contact block 8 is fitted to the fitted portion 12 having the rectangular cylindrical shape of the outer contact block 8, and the engaging protrusion 13 is engaged with the engaging hole 14. By engaging, the contact block 8 can be overlapped and detachably joined. Here, the both contact blocks 8 are joined via an insulating plate 118 as shown in FIG. An insulating plate 118 ′ with an engagement protrusion 13 is attached to the contact block 8 located outside, and the engagement protrusion 13 is engaged with the engagement hole 14 of the contact block 8 located outside.
[0035]
Further, the card 10 is provided with a hole 72 for connection with the card 10 provided on the other contact block 8 by a pin 71.
[0036]
Further, the partition wall 101 and the insulating plate 118 provided in each contact base 6 are provided with holes 119 and 120, respectively. Then, the pin 71 is inserted from the hole 72 of one card 10, and the pin 71 is inserted through the holes 119 and 120 and fitted into the hole 72 of the other card 10.
[0037]
The latching relay configured as described above can open and close the contact device 7 via the card 10 in the contact block 8 by exciting the electromagnet block 5 or manually operating the manual lever portion 21.
[0038]
[Problems to be solved by the invention]
By the way, in the conventional contact device 7, since the conductive plate 106 to which the braided wire 91 is welded is flat, there is a problem that it is difficult to position the position where the braided wire 91 is welded.
[0039]
In addition, when the caulking and fixing of the electromagnetic iron piece 37 is loosened, there is a problem in that the tips of both side pieces of the electromagnetic iron piece 37 that are caulked and fixed to the fixing terminal 84 that is welded to the opposing conductive plate 106 come into contact with the conductive plate 106 and are welded. It was.
[0040]
The present invention has been made in view of the above-mentioned problems, and an object of the invention of claim 1 is to facilitate positioning of the welded portion of the braided wire to the conductive plate fixed to the movable contact spring. Another object of the present invention is to provide a relay capable of increasing the arc attractive force.
[0041]
In addition to the object of claim 1, the object of claim 2 is that the iron piece, the conductive plate on the movable contact spring side, It is in providing the relay which can ensure the distance of.
[0042]
The object of the third aspect is to provide a relay in which the iron piece is fixed so that the iron piece on the fixed terminal side does not contact the conductive plate in addition to the object of the first aspect.
[0043]
[Means for Solving the Problems]
In order to achieve the above object, according to the first aspect of the present invention, a fixed terminal provided with a fixed contact is disposed opposite to the fixed terminal, and the electromagnetic drive mechanism Fixed terminal A movable terminal with one end of a movable contact spring that is moved so as to approach or separate from the fixed terminal, and the fixed terminal side, and the tip of both side pieces the above Than the plate surface of the fixed terminal the above A U-shaped iron piece projecting toward the movable contact spring side and a movable contact that contacts and separates from the fixed contact are provided on the movable contact spring. A contact device having an integrally formed conductive plate, and the plate surface between the protruding pieces on both sides of the conductive plate being a welded portion for welding the other end of the braided wire welded at one end to the movable terminal. In addition, the iron piece forms a concave groove in the longitudinal direction of the fixed terminal on the inner base of both side pieces, and forms a slit into the center piece to insert a caulking fixing dove protruding from the back of the fixed terminal, The fixed terminal is inserted between the both side pieces, both side edges of the fixed terminal are fitted in the concave groove, and the caulking fixing dowel is inserted into the slit from the opening of the slit provided in the insertion direction of the fixed terminal. It is inserted and fixed by caulking It is characterized by that.
[0045]
Claim 2 In the invention of A fixed terminal provided with a fixed contact, and a movable terminal fixed to one end of a movable contact spring arranged to face the fixed terminal and moved so as to approach and separate from the fixed terminal by an electromagnetic drive mechanism; A U-shaped iron piece provided on the fixed terminal side, with the tips of both side pieces protruding from the plate surface of the fixed terminal to the movable contact spring side, and the movable contact spring to contact with and separate from the fixed contact A conductive plate provided with a movable contact, and integrally formed with projecting pieces each having a tip opposed to the both ends of the iron piece, and a plate surface between the projecting pieces on both sides of the conductive plate is connected to the movable terminal at one end. Equipped with a contact device with the other end of the welded braided wire welded , The iron piece has a groove in the longitudinal direction of the fixed terminal on the inner base of both side pieces, and A central piece in a recess formed in the inner wall near the back of the fixed terminal of the housing that houses the contact device The Insertion fixing And Both sides the above From both sides of the fixed terminal the above It is characterized by projecting in the direction of the movable contact spring.
[0046]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below.
[0047]
(Embodiment 1)
FIG. 2 is an exploded perspective view of the present embodiment. In the illustrated embodiment, the configuration of the conductive plate 106 ′ in which the main movable contact 80 of the contact device 7 is fixed to the main movable contact spring 81 is the same as the above-described conventional example. The other components are basically the same as those of the conventional example. In the figure, the same components having the same operations as those of the conventional example are denoted by the same reference numerals and symbols. The description will be referred to in the section of the prior art and will be omitted here.
[0048]
Next, the conductive plate 106 ′, which is the main configuration of the present embodiment, will be described in detail. As shown in FIGS. 1, 3 and 4, the conductive plate 106 'used in the present embodiment is a rectangular flat plate-like fixing portion 55 for caulking and fixing the main movable contact 80 with the main movable contact spring 81 interposed therebetween, and this fixed portion. The lower end of the connecting portion 56 extending slightly rearward from the central lower end of the 55 is composed of a U-shaped portion 57 integrally connected to the central upper end of the central piece. The plate surface between the pieces 57a and 57a is located slightly behind the plate surface on which the main movable contact spring 81 of the fixed portion 55 contacts, and the plate surface between the two protruding pieces 57a and 57a serves as one end of the braided wire 91. The welding part to weld is comprised.
[0049]
Thus, when the conductive plate 106 ′ is fixed to the movable contact spring 81, the other end of the braided wire 91 whose one end is welded to the movable terminal 79 is welded to the welded portion, and then passes through the main movable contact spring 81. Since the caulking dowel 80a of the main movable contact 80 is inserted into the insertion hole 55a of the fixing portion 55 of the conductive plate 106 ′ and the tip thereof is caulked, the conductive plate 106 ′ is fixed to the movable contact spring 81. is there. At this time, both projecting pieces 57a, 57a of the U-shaped portion 57 of the conductive plate 106 'project from both sides of the main movable contact spring 81 toward the fixed terminal 84 provided with the main fixed contact 85, and the tip of the projecting pieces 57a, 57a. It comes to face the tip of both side pieces.
[0050]
In this embodiment having such a configuration, The In addition to facilitating positioning of the welding position of the braided wire 91, the tip of both side pieces of the electromagnetic iron piece 37 and the two protruding pieces 57a and 57a of the U-shaped portion 57 are magnetic when an arc is generated as shown in FIG. Compared to the conventional circuit Electromagnetic iron plate The suction force of 37 will increase. In addition, it is possible to prevent overlapping during plating.
[0051]
(Embodiment 2)
FIG. 6 shows an exploded perspective view of the present embodiment. The illustrated embodiment is different from the first embodiment in that the structure fixed to the fixed terminal 84 of the electromagnetic iron piece 37 ′ of the contact device 7 is fixed to the movable contact spring 81. The configuration of the conductive plate 106 ′ is the same as that of the first embodiment. Accordingly, in the figure, the same components that do not perform the same operations as those of the first embodiment or the conventional example are denoted by the same reference numerals and symbols, and the description of these components is referred to the description in the column of the prior art. It is omitted here.
[0052]
Next, the configuration that is fixed to the fixed terminal 84 of the electromagnetic iron piece 37 ′, which is the main configuration of the present embodiment, will be described in detail. The fixed terminal 84 used in this embodiment is integrally provided with a dowel 58 for caulking and fixing as shown in FIGS. 7 and 8 on the back surface of a hanging piece 84a that can be hung below the portion where the main fixing contact 85 is caulked and fixed. It is. On the other hand, the electromagnetic iron piece 37 ′ has a concave groove 37 b formed in the inner base portion of the both side pieces 37 a, 37 a so as to correspond to the longitudinal direction of the hanging piece 84 a of the fixed terminal 84. The width of the concave groove 37b is substantially the same as the thickness of the hanging piece 84a of the fixed terminal 84 so that the side edge of the hanging piece 84a can be fitted. Further, a slit 59 having an upper end opened is formed in the central piece of the electromagnetic iron piece 37 ′.
[0053]
In order to fix the electromagnetic iron piece 37 ′ to the fixed terminal 84, the lower end of the hanging piece 84a of the fixed terminal 84 is inserted between the concave grooves 37b, 37b of the electromagnetic iron piece 37 ′, and the electromagnetic iron piece 37 ′ is moved upward to form a slit. The dowel 58 may be inserted into the upper end opening 59 and the dowel 58 may be caulked.
[0054]
In a state where the electromagnetic iron piece 37 ′ is fixed to the hanging piece 84 a of the fixed terminal 84, both side pieces 37 a and 37 a of the electromagnetic iron piece 37 ′ protrude toward the movable contact spring 81.
[0055]
According to the present embodiment, in addition to the advantages of the first embodiment, even if the caulking of the electromagnetic iron piece 37 ′ is loosened, both the side edges of the hanging piece 84a are formed in the concave groove 37b and the shape that encloses the hanging piece 84a. By fitting, the electromagnetic iron piece 37 ′ can be prevented from approaching the conductive plate 106 ′, and the electromagnetic iron piece 37 ′ can be prevented from coming into contact with the conductive plate 106 ′ and being welded.
[0056]
(Embodiment 3)
FIG. 9 shows an exploded perspective view of the present embodiment. The illustrated embodiment is different from the first and second embodiments in that the configuration is fixed to the fixed terminal 84 of the electromagnetic iron piece 37 ′ of the contact device 7, but the movable contact spring 81. The configuration of the conductive plate 106 ′ fixed to the same is the same as that of the first embodiment, and the other configurations are the same as those of the above-described conventional example. Accordingly, in the figure, the same components that do not perform the same operations as those of the first embodiment or the conventional example are denoted by the same reference numerals and symbols, and the description of these components is referred to the description of the conventional technology. It is omitted here.
[0057]
Next, a configuration for fixing to the fixed terminal 84 of the electromagnetic iron piece 37 ″, which is the main configuration of the present embodiment, will be described in detail. In the above-described conventional example, Embodiments 1 and 2, the electromagnetic iron piece 37 or 37 ″ is fixed to the fixed terminal 84 by caulking. In this embodiment, as shown in FIGS. 10 and 11, the central piece of the electromagnetic iron piece 37 ″ is sandwiched between the inner side surfaces of the contact base 6 located near the back of the hanging piece 84 a of the fixed terminal 84. The fitting recess 60 is fixed between the two parallel ribs 60a, 60a, and the electromagnetic iron piece 37 "is disposed on the back side of the hanging piece 84a of the fixed terminal 84 without being caulked. Yes.
[0058]
In a state where the electromagnetic iron piece 37 ″ is fixed to the fitting recess 60, both side pieces 37a and 37a of the electromagnetic iron piece 37 ′ protrude in the direction of the movable contact spring 81 from the plate surface of the hanging piece 84a.
[0059]
According to the present embodiment, in addition to the advantages of the first embodiment, the assembly work is easy because no caulking is used, and the electromagnetic iron piece 37 ″ approaches the conductive plate 106 ′ side even if the fixed state is loosened. Can be restricted by the hanging piece 84a to prevent the electromagnetic iron piece 37 ″ from coming into contact with the conductive plate 106 ′ and being welded.
[0060]
【The invention's effect】
In the first aspect of the present invention, the fixed terminal provided with the fixed contact is disposed opposite to the fixed terminal, and the electromagnetic drive mechanism Fixed terminal A movable terminal with one end of a movable contact spring that is moved so as to approach or separate from the fixed terminal, and the fixed terminal side, and the tip of both side pieces the above Than the plate surface of the fixed terminal the above A U-shaped iron piece projecting toward the movable contact spring side and a movable contact that contacts and separates from the fixed contact are provided on the movable contact spring. A contact device having an integrally formed conductive plate, and the plate surface between the protruding pieces on both sides of the conductive plate being a welded portion for welding the other end of the braided wire welded at one end to the movable terminal. e Therefore, the welding position of the braided wire can be easily positioned, and the arc attracting force of the iron plate is increased compared to the conventional one by configuring a magnetic circuit with the protruding piece of the conductive plate facing the tip of both side pieces of the iron piece. I will do it. In addition, there is an effect that it is possible to prevent overlapping during plating.
[0061]
Plus The iron piece has a concave groove in the longitudinal direction of the fixed terminal at the inner base of both side pieces, and a slit for inserting a caulking fixing dove protruding from the back of the fixed terminal at the center piece. Because the fixed terminal is inserted, both side edges of the fixed terminal are fitted in the concave groove, and the caulking fixing dowel is inserted into the slit from the opening of the slit provided in the inserting direction of the fixed terminal and fixed by caulking. Even if the caulking is loosened, it is possible to prevent the iron piece from being restricted by the fixing terminal and coming into contact with the conductive plate, so that the iron piece is not welded to the conductive plate.
[0062]
In the invention of claim 2, A fixed terminal provided with a fixed contact, a movable terminal fixed to one end of a movable contact spring disposed opposite to the fixed terminal and moved so as to approach and separate from the fixed terminal by an electromagnetic drive mechanism; and A U-shaped iron piece provided on the fixed terminal side with the tips of both side pieces protruding from the plate surface of the fixed terminal to the movable contact spring side, and a movable contact spring that contacts and separates the fixed contact And a conductive plate integrally formed with protruding pieces whose tips are opposed to the both ends of the iron piece, and one end of the conductive plate is welded to the movable terminal. A contact device with the other end of the braided wire welded , The iron piece has a groove in the longitudinal direction of the fixed terminal on the inner base of both side pieces, and A central piece in a recess formed in the inner wall near the back of the fixed terminal of the housing that houses the contact device The Insertion fixing And Both sides the above From both sides of the fixed terminal the above Because it protrudes in the direction of the movable contact spring, In addition to facilitating positioning of the welding position of the braided wire according to the first aspect of the present invention, a magnetic circuit is constituted by the leading ends of both side pieces of the iron piece and the protruding pieces of the conductive plate facing each other, so that the arc attraction of the iron plate as compared with the prior art The force will increase, and it will be possible to prevent overlap during plating. In addition to the effect, it is easy to assemble because it does not use caulking, and even if the fixing state is loosened, it can prevent the electromagnetic iron piece from being restricted by the fixed terminal and coming into contact with the conductive plate. There is an effect that it is not welded.
[Brief description of the drawings]
FIG. 1 is an enlarged perspective view of a main part of a first embodiment of the present invention.
FIG. 2 is an exploded perspective view of the whole of the above.
FIG. 3A is a side view of a conductive plate used in the above.
(B) is a front view of the electroconductive board used for the same as the above.
FIG. 4 is a rear view in which a contact block used in the above is partially broken.
FIG. 5 is an explanatory diagram of a magnetic circuit of a conductive plate and an electromagnetic iron piece used in the above.
FIG. 6 is an overall exploded perspective view of Embodiment 2 of the present invention.
FIG. 7 is an enlarged perspective view in which a main part of the above is partially broken.
FIG. 8A is a front view in which a part of a contact block used in the above can be omitted.
(B) is a rear view in which a contact block used in the above is partially broken.
FIG. 9 is an overall exploded perspective view of Embodiment 3 of the present invention.
FIG. 10 is an enlarged perspective view in which a principal part of the above is partially broken.
FIG. 11 (a) is a front view in which a part of the contact block used in the above is omitted.
(B) is a rear view in which a contact block used in the above is partially broken.
FIG. 12 is an overall exploded perspective view of a conventional example.
FIG. 13 is an enlarged perspective view of a part of the electromagnetic iron piece used for the above.
FIG. 14 (a) is a top view in which the electromagnetic block used in the above is partially broken.
(B) is a side sectional view of the electromagnetic block used in the above.
(C) is a rear view of the electromagnetic block used in the above.
FIG. 15A is a top view of a contact block used in the above.
(B) is a front view in which a part of the contact block used in the above can be omitted.
(C) is a bottom view of the contact block used in the above.
(D) is a side view of the contact block used in the above.
(E) is a rear view in which a contact block used in the above is partially broken.
[Explanation of symbols]
55 fixed part
56 connection
57 U-shaped part
57a Protruding piece
80a Dowel for caulking
81 Main movable contact spring
91 Braided wire
106 'conductive plate

Claims

A fixed terminal provided with a fixed contact, a movable terminal fixed to one end of a movable contact spring disposed opposite to the fixed terminal and moved so as to approach and separate from the fixed terminal by an electromagnetic drive mechanism; and provided on the fixed terminal side, and the iron piece of U-shaped, which also is protruded to the movable contact spring side of the distal end of each side piece plate surface of the fixed terminals, contacts, separable on the fixed contact to the movable contact spring A conductive plate provided with a movable contact, and integrally formed with projecting pieces each having a tip opposed to the both ends of the iron piece, and a plate surface between the projecting pieces on both sides of the conductive plate is connected to the movable terminal at one end. e Bei contact apparatus with welding unit for welding the other end of the welding the braided wire, the iron piece to form a groove in the longitudinal direction of the fixed terminals to the inside base of each side piece, of the fixed terminals to the center piece Insert a dowel for caulking that protrudes from the back Forming the slit, inserting the fixed terminal between the pieces on both sides, fitting both side edges of the fixed terminal in the concave groove, and fixing the caulking from the opening of the slit provided in the insertion direction of the fixed terminal. A relay comprising a dowel inserted into the slit and fixed by caulking .

A fixed terminal provided with a fixed contact, a movable terminal fixed to one end of a movable contact spring disposed opposite to the fixed terminal and moved so as to approach and separate from the fixed terminal by an electromagnetic drive mechanism; and A U-shaped iron piece provided on the fixed terminal side with the tips of both side pieces protruding from the plate surface of the fixed terminal to the movable contact spring side, and a movable contact spring that contacts and separates the fixed contact And a conductive plate integrally formed with protruding pieces whose tips are opposed to the both ends of the iron piece, and one end of the conductive plate is welded to the movable terminal. the other end Bei give a contact device in which a welded portion welding the braided wire, together with the iron to form a groove on the inner base of each side piece in the longitudinal direction of the fixed terminals, a housing for housing the contact device Inner wall near the back of the fixed terminal Solidified fitted a central piece forming the recess, relay bilateral pieces, characterized by comprising projecting from both sides of the fixed terminals to said movable contact spring direction.