JP4062911B2

JP4062911B2 - Electromagnetic relay

Info

Publication number: JP4062911B2
Application number: JP2001364131A
Authority: JP
Inventors: 淳宍戸; 達生篠浦; 祐三岡野
Original assignee: Omron Corp
Current assignee: Omron Corp
Priority date: 2001-11-29
Filing date: 2001-11-29
Publication date: 2008-03-19
Anticipated expiration: 2021-11-29
Also published as: JP2003168353A

Description

【０００１】
【発明の属する技術分野】
本発明は電磁継電器、特に、その内部に組み込まれる電磁石装置のスプール形状に関する。
【０００２】
【従来の技術と発明が解決しようとする課題】
従来、電磁石装置を組み込んだ電磁継電器には、左右の磁気バランスを不均衡とすることにより、自己復帰可能に支持した可動鉄片を回動させて接点を切り換えるものがある。そのような電磁継電器としては、例えば、特開平１０−２０８６０１号公報に開示するように、常閉固定接点２１ａと常開固定接点２２ａとを交互に開閉する自己復帰型の電磁継電器がある。
すなわち、電磁石ブロック３０の励磁，消磁に基づいて回動する可動鉄片４０で可動ブロック５０を回動させることにより、常閉可動接触片５３ａを共通固定接点２３ｂおよび常閉固定接点２１ａに、そして、常開可動接触片５３ｂを共通固定接点２３ａおよび常開固定接点２２ａに交互に接離させるものである。
【０００３】
しかしながら、電磁継電器をプリント基板等に実装して使用する場合、端子の取付状態を変更せずに回路配線上で異なった接点配置仕様を必要とする場合がある。例えば、ある仕様では、前述の電磁継電器のように、電磁石ブロック３０の左側に常閉固定接点２１ａを備え、その右側に常開固定接点２２ａを備えた電磁継電器をプリント基板に実装する。これに対し、他の仕様では、回路配線上において前記接点配置とは逆の接点配置となるような要望がある場合、電磁石ブロック３０の右側に常閉固定接点２１ａを備え、その左側に常開固定接点２２ａを備えた電磁継電器が必要になる。このような場合には、従来例にかかる電磁継電器では異なる仕様態様に備えて２種類の可動台、常閉用固定接点端子、共通固定端子および常開用固定接点端子等を準備する必要がある。このため、部品点数が増大し、部品管理が煩雑になる。また、前記可動台および接点端子を製造するために成形金型およびプレス金型を常に２種類準備しなければならず、生産コストがアップするという問題点がある。
【０００４】
一方、電磁石装置を組み込んだ他の電磁継電器としては、例えば、特開平９−２３１８９５号公報に開示のものがある。この公報では実施形態として自己保持型の電磁継電器を主に開示しているが、磁気バランスを崩して自己復帰型の電磁継電器として使用することも開示されている。そして、前述の電磁継電器を自己復帰型とする場合には、例えば、永久磁石３０を電磁石ブロック１０の中心から偏心させた位置に配置することが行われている。
【０００５】
しかしながら、前述のように自己復帰型とした電磁継電器であっても設置環境に応じて逆の仕様態様で使用することが必要となる場合がある。そのような場合には前述の従来例と同様、ベースブロック１０、スプール１２等を２種類準備しなければならない。このため、部品点数が増大し、部品管理が煩雑になるとともに、スプール、ベースブロックを成形するために成形金型を２種類準備しなければならず、生産コストがアップするという問題点がある。
【０００６】
本発明は、前記問題点に鑑み、製造するために複数の金型を準備する必要がなく、部品管理が簡単な電磁継電器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】
本発明にかかる電磁継電器は、前記目的を達成すべく、ベースと、前記ベースに搭載した高周波信号伝送用接点機構部を被覆するように前記ベースに組み付けた上シールド板と、前記ベースの下面を被覆するように組み付けた下シールド板と、スプールの胴部に組み付けた鉄芯の下面に永久磁石を配置し、かつ、コイルを巻回して形成され、前記上シールド板の上方側に配置して前記接点機構部から仕切られた電磁石装置と、前記永久磁石の下端面に回動可能に吸着した可動鉄片と、からなり、前記電磁石装置の励磁，消磁に基づいて前記可動鉄片をシーソーのように回動することにより、前記上シールド板に設けた挿通孔から前記接点機構部を駆動するとともに、前記永久磁石を前記スプールの中心から偏心した位置に取り付けることにより、左右の磁気バランスを不均衡にして前記可動鉄片を自己復帰可能とした電磁継電器において、前記スプールの胴部の両端に鍔部を左右対称となるようにそれぞれ形成するとともに、前記鍔部のうち、前記スプールの中心に位置する軸心を中心として点対称となる位置に、コイル端子を挿入できるコイル端子孔をそれぞれ設ける一方、前記ベースの側面から突出した前記接点機構部の高周波信号伝送用端子を下方に屈曲し、前記高周波信号伝送用端子の外側面の基部を、前記上シールド板の外周縁部から延在した延在部で、前記高周波信号伝送用端子の外側面に沿うように非接触状態で被覆するとともに、前記延在部の内側に屈曲した両端部から下方にそれぞれ延在した２本のアース端子と、前記アース端子の間に並設した前記高周波信号伝送用端子と、を同一直線上に配置した構成としてある。
【０００８】
したがって、本発明によれば、スプールを１８０度反転させても、スプールを反転させない場合と同様、他の構成部品に組み付けて使用できる。しかも、スプールを１８０度反転させることにより、左右の磁気バランスが逆になる。このため、１種類のスプールを異なる仕様態様で使用でき、部品管理が簡単になるとともに、１種類の成形金型を準備するだけでよく、生産コストを低減できる。
【０００９】
また、他の発明としては、ベースと、前記ベースに搭載した高周波信号伝送用接点機構部を被覆するように前記ベースに組み付けた上シールド板と、前記ベースの下面を被覆するように組み付けた下シールド板と、スプールの胴部に組み付けた鉄芯の下面に永久磁石を配置し、かつ、コイルを巻回して形成され、前記上シールド板の上方側に配置して前記接点機構部から仕切られた電磁石装置と、前記永久磁石の下端面に回動可能に吸着した可動鉄片と、からなり、前記電磁石装置の励磁，消磁に基づいて前記可動鉄片をシーソーのように回動することにより、前記上シールド板に設けた挿通孔から前記接点機構部を駆動するとともに、前記鉄芯の一端に位置する磁極部の形状を前記鉄芯の他端に位置する磁極部の形状と異ならしめることにより、左右の磁気バランスを不均衡にして前記可動鉄片を自己復帰可能とした電磁継電器において、前記スプールの胴部の両端に鍔部を左右対称となるようにそれぞれ形成するとともに、前記鍔部のうち、前記スプールの中心に位置する軸心を中心として点対称となる位置に、コイル端子を挿入できるコイル端子孔をそれぞれ設ける一方、前記ベースの側面から突出した前記接点機構部の高周波信号伝送用端子を下方に屈曲し、前記高周波信号伝送用端子の外側面の基部を、前記上シールド板の外周縁部から延在した延在部で、前記高周波信号伝送用端子の外側面に沿うように非接触状態で被覆するとともに、前記延在部の内側に屈曲した両端部から下方にそれぞれ延在した２本のアース端子と、前記アース端子の間に並設した前記高周波信号伝送用端子と、を同一直線上に配置した構成としておいてもよい。
【００１０】
前述の発明によれば、前述の効果と同様、生産コストを低減できるとともに、部品管理が簡単になるという効果がある。
【００１１】
別の発明によれば、ベースと、前記ベースに搭載した高周波信号伝送用接点機構部を被覆するように前記ベースに組み付けた上シールド板と、前記ベースの下面を被覆するように組み付けた下シールド板と、スプールの胴部に組み付けた鉄芯の下面に永久磁石を配置し、かつ、コイルを巻回して形成され、前記上シールド板の上方側に配置して前記接点機構部から仕切られた電磁石装置と、前記永久磁石の下端面に回動可能に吸着した可動鉄片と、からなり、前記電磁石装置の励磁，消磁に基づいて前記可動鉄片をシーソーのように回動することにより、前記上シールド板に設けた挿通孔から前記接点機構部を駆動するとともに、前記可動鉄片の回動支点をその中心から偏心した位置に設けることにより、左右の磁気バランスを不均衡にして前記可動鉄片を自己復帰可能とした電磁継電器において、
前記スプールの胴部の両端に鍔部を左右対称となるようにそれぞれ形成するとともに、前記鍔部のうち、前記スプールの中心に位置する軸心を中心として点対称となる位置に、コイル端子を挿入できるコイル端子孔をそれぞれ設ける一方、前記ベースの側面から突出した前記接点機構部の高周波信号伝送用端子を下方に屈曲し、前記高周波信号伝送用端子の外側面の基部を、前記上シールド板の外周縁部から延在した延在部で、前記高周波信号伝送用端子の外側面に沿うように非接触状態で被覆するとともに、前記延在部の内側に屈曲した両端部から下方にそれぞれ延在した２本のアース端子と、前記アース端子の間に並設した前記高周波信号伝送用端子と、を同一直線上に配置した構成としてもよい。
【００１２】
前述の発明によれは、前述の効果と同様、生産コストを低減できるとともに、部品管理が簡単になるという効果がある。
【００１３】
【発明の実施の形態】
本発明にかかる実施形態を図１ないし図８の添付図面に従って説明する。
本実施形態にかかる電磁継電器は高周波回路の開閉に用いられるものであり、図１に示すように、大略、ベースブロック１０に、可動鉄片６０を組み付けた電磁石ブロック７０を載置するとともに、ケース９０を被せたものである。
【００１４】
前記ベースブロック１０は、図３に示すように、一対の可動接点ブロック４０，４５を組み込んだベース２０を下シールド板３０および上シールド板５０で上下から挟持したものである。
【００１５】
前記ベース２０は、図示しないリードフレームから共通固定接点端子２１、常開固定接点端子２２および常閉固定接点端子２３を打ち抜いた後、金型内に搬送してインサート成形したものである。そして、前記リードフレームからプレス加工で前記端子２１，２２，２３を切り離すとともに、折り曲げて完成する。なお、前記ベース２０の周辺縁部には後述する下シールド板３０を組み付けるための挿入孔２４が形成されている。さらに、前記ベース２０は、両側端面に位置決め用凹部２７ａ，２７ｂを形成してある。
【００１６】
下シールド板３０は、導電性板状材をプレス加工で打ち抜き、かつ、周辺縁部を曲げ起こして起立壁３１を形成したものである。前記起立壁３１の上端部には折り曲げ可能な係止用舌片３２が適宜形成されている。
【００１７】
さらに、前記下シールド板３０の底面中央部には復帰バネ３５が溶接一体化されている。前記復帰バネ３５の両端部３６，３７は後述する可動接点ブロック４０，４５の下端面に圧接し、可動接触片４１，４６を上方に付勢する。
【００１８】
前記可動接点ブロック４０，４５は、導電性板バネからなる可動接触片４１，４６をインサート成形したものであり、前記ベース２０の縦ガイド溝２５，２６に沿って組み込まれる。このため、可動接触片４１の両端部は前記共通固定接点端子２１の固定接点部２１ａおよび常開固定接点端子２２の固定接点部２２ａにそれぞれ接離する。また、可動接触片４６の両端部は前記共通固定接点端子２１の固定接点部２１ａおよび常開固定接点端子２３の固定接点部２３ａにそれぞれ接離する。
【００１９】
上シールド板５０は矩形板状の導電材からなり、長手方向の２箇所に設けた挿通孔５１，５２から前記可動接点ブロック４０，４５が上下動自在に突出する。また、前記上シールド板５０は、前記挿入孔５１を間にして対向するようにアース接点部５３ａ，５３ｂを設けてあるとともに、前記挿入孔５２を間にして対向するように５４ａ，５４ｂを設けてある。さらに、前記上シールド板５０は、その周辺縁部から延在したシールド用舌片５５ａ，５５ｂ，５５ｃ，５５ｄからアース端子５６をそれぞれ延在してある。例えば、前記シールド用舌片５５ｄは、図４Ｂに示すように、ベース２０の側面から突出する共通固定接点端子２１の基部を被覆し、高周波特性の向上を図っている。そして、前記上シールド板５０の両端部には位置決め用爪部５７ａ，５７ｂが側方に突出している（図４Ａ）。
【００２０】
次に、ベースブロック１０の組立工程について説明する。
ベース２０の挿入孔２４に、復帰バネ３５を溶接一体化した下シールド板３０の起立壁３１を下方側から挿入する。そして、前記ベース２０の縦ガイド溝２５，２６に沿って可動ブロック４０，４５をそれぞれ組み付け、所定の位置に位置決めする。ついで、前記ベース２０に上シールド板５０を組み付け、ベース２０の位置決め用凹部２７ａ，２７ｂに上シールド板５０の位置決め用爪部５７ａ，５７ｂをそれぞれ嵌合して位置決めする。そして、前記下シールド板３０の係止用舌片３２を内方に折り曲げることにより、下シールド板３０と上シールド板５０とでベース２０を挟持する。この結果、ストリップライン構造を形成するとともに、上シールド板５０の挿通孔５１，５２から可動ブロック４０，４５の上端部が押圧可能に迫り出し、ベースブロック１０の組立が完了する。
【００２１】
前記可動鉄片６０は板状磁性材からなり、その中央部に突き出し加工を施して回動支点となる突条６１を形成してあるとともに、上面の一端部に遮磁板６２を取り付けてある。さらに、前記可動鉄片は、その下面中央部に押圧バネ６５を溶接一体化してある（図６）。
【００２２】
前記押圧バネ６５は平面略十文字形状であり、対向する両端部を略直角に曲げ起こして支持突起６６，６６を形成してある。前記支持突起６６，６６は自動調心できるように正面略三角形状であり、その頂部が前記可動鉄片６０の突条６１の頂部と同一直線上に位置している。このため、可動鉄片６０の回動支点が同一線上に揃うので、可動鉄片６０が円滑に回動するという利点がある。さらに、押圧バネ６５の残る対向する両端部にプレス加工を施すことにより、弾性腕部６７，６８がそれぞれ形成されている（図６）。
【００２３】
電磁石ブロック７０は、スプール７１に鉄芯８０およびコイル端子８３，８４８５を組み込んでコイル８６を巻回した後、永久磁石８７を組み付けたものである。
すなわち、前記スプール７１は、図７Ａに示すように、コイル８６を巻回する胴部７２の両端に鍔部７３，７４を左右対称にそれぞれ形成するとともに、前記胴部７２の中央に支持台７５を一体成形したものである。前記胴部７２の下面には後述する鉄心８０を圧入できる圧入溝７２ａが形成されている。
【００２４】
また、前記鍔部７３および７４には、スプール７０の中心に位置する軸心７１ａ（図７Ａ）に対して点対称となる位置にコイル端子孔７３ａ，７３ｂ，７３ｃおよび７４ａ，７４ｂ，７４ｃがそれぞれ形成されている。なお、並設した２本のコイル端子孔７３ａおよび７３ｂ、あるいは、７４ａおよび７４ｂのうち、いずれか一方はダミー端子用である。
【００２５】
さらに、図２および図７Ｃに示すように、前記支持台７５の下面には収容凹部７５ａを軸心７１ａの左側に偏心させて設けてある。このため、前記収容凹部７５ａに略直方体形状の永久磁石８７を組み付けることにより、前記永久磁石８７を軸心７１ａから左側に偏心させた位置に配置できる。さらに、前記支持台７５の両側面の下端縁部に、前記押圧バネ６５の支持突起６６を嵌合できる切り欠き部７５ｂが形成されている。
【００２６】
前記鉄芯８０は、図２に示すように、断面略ハット形状であり、前記スプール７１の胴部７２に組み込まれ、突出する両端部を磁極部８１，８２としてある。
【００２７】
したがって、前記電磁石ブロック７０を組み立てるには、スプール７１の圧入溝７２ａに鉄芯８０を圧入するとともに、鍔部７３および７４のコイル端子孔７３ａ，７３ｂおよび７４ｃにコイル端子８３，８４および８５をそれぞれ圧入する。ついで、前記胴部７２にコイル８６を巻回し、その両端部をコイル端子８４，８５の上端部にそれぞれ絡げてハンダ付けする。さらに、前記スプール７１の支持台７５の下面に設けた収容凹部７５ａに永久磁石８７を組み付けることにより、電磁石ブロック７０が完成する。そして、前記スプール７１の支持台７５に設けた位置決め用切り欠き部７５ｂ，７５ｂに、押圧バネ６５の支持突起６６，６６をそれぞれ嵌合する。さらに、前記可動鉄片６０を永久磁石８７に吸着させることにより、可動鉄片６０を電磁石ブロック７０に組み付ける（図６）。
【００２８】
前記ケース９０は、前記電磁石ブロック７０を組み付けた前記ベースブロック１０に嵌合可能な箱形状を有している。そして、前記ベースブロック１０と前記ケース９０との嵌合面にシール剤を塗布し、恒温槽で前記シール剤を硬化させる。そして、前記ケース９０のガス抜き部９１から内部空気を抜いて熱封止し、密封状態とすることにより、電磁継電器の組立作業が完了する。
【００２９】
本実施形態によれば、常開固定接点部２２ａおよび常閉固定接点部２３ａはベース２０の長辺の両端に配置され、両者は離れた位置にある。さらに、それらの常開固定接点端子２２および常閉固定接点端子２３は一方の長辺の隅部から側方にそれぞれ突出し、両者は離れた位置にある。一方、共通固定接点端子２１は対向する他方の長辺の中央部から側方に突出しているとともに、コイル端子５６が対向する他方の長辺の隅部から側方にそれぞれ突出している。そして、前記常開固定接点端子２２、常閉固定接点端子２３、共通固定接点端子２１およびコイル端子８３，８５の間にはアース端子５６がそれぞれ配置されている。このため、本実施形態によれば、優れたアイソレーション特性を有する高周波開閉用の電磁継電器が得られるという利点がある。
【００３０】
次に、前述の構成からなる電磁継電器の動作について説明する。
図２に示すように、コイル８６に電圧が印加されていない場合には、可動鉄片６０の一端部６０ａが鉄芯８０の磁極部８１に吸着している。このため、押圧バネ６５の弾性腕部６８が可動接点ブロック４５を押し下げている。この結果、可動接触片４６の両端部は復帰バネ３５の他端部３７のバネ力に抗しつつ、共通固定接点部２１ａおよび常閉固定接点部２３ａに接触している。一方、可動接点ブロック４０は復帰バネ３５の一端部３６で上方に付勢され、可動接触片４１の両端部は上シールド板５０のアース接点部５３ａ，５３ｂに接触している。
【００３１】
そして、前記コイル８６に電圧を前記永久磁石８７の磁束を打消す方向に印加すると、鉄芯８０の磁極部８２が可動鉄片６０の他端部６０ｂを吸引し、可動鉄片６０が突条６１の頂部を回動支点として回動する。このため、押圧バネ６５の弾性腕部６７が可動接点ブロック４０を復帰バネ３５の一端部３６のバネ力に抗して押し下げる。この結果、可動接点ブロック４０が下降し、可動接触片４１の両端部が共通固定接点部２１ａおよび常開固定接点部２２ａに接触する。一方、復帰バネ３５の他端部３７のバネ力で可動接点ブロック４５が押し上げられ、可動接触片４６の両端部が共通固定接点部２１ａおよび常閉固定接点部２３ａからそれぞれ開離した後、上シールド板５０のアース接点部５４ａ，５４ｂにそれぞれ接触する。その後、可動鉄片６０の他端部６０ｂが遮磁板６２を介して鉄芯８０の磁極部８２に吸着する。
【００３２】
さらに、前記コイル８６への電圧の印加を停止すると、前記電磁石装置７０の磁気バランスが不均衡であり、鉄芯８０の磁極部８１における磁力が磁極部８２の磁力よりも強い。このため、鉄心８０の磁極部８１が可動鉄片６０の一端部６０ａを吸引する力が、鉄芯８０の磁極部８２が可動鉄片６０の他端部６０ｂを吸引する力よりも大きいので、可動鉄片６０は前述と逆方向に回動する。このため、押圧バネ６５の弾性腕部６８が可動接点ブロック４５を押し下げる一方、復帰バネ６５の一端部３６が可動接点ブロック４０を押し上げる。この結果、可動接触片４６の両端部が共通固定接点部２１ａおよび常開固定接点部２３ａに接触する一方、可動接触片４１の両端部が上シールド板５０のアース接点部５３ａ，５３ｂに接触し、元の状態に復帰する。
【００３３】
前述の実施形態では、図２において右側に位置する可動接点ブロック４５で常閉固定接点部２３ａを開閉しているが、左側に常閉固定接点部２２を配置したい場合がある。このような場合には、例えば、図８に示すように、スプール７１のコイル端子孔７４ａ，７４ｂおよび７３ｃにコイル端子８３，８４および８５をそれぞれ挿入し、永久磁石８７の取付位置をスプール７１の軸心７１ａよりも右側に配置するようにしてもよい（図８Ｃ）。
本実施形態によれば、同一のスプール７１で異なる仕様の電磁石ブロック７０が得られるので、成形金型が１種類で対応でき、生産コストを低減できる。また、管理すべき部品点数が減少するので、部品管理が簡単になるという利点がある。
【００３４】
なお、スプールに設けるコイル端子孔は、必要に応じ、その個数および位置を適宜変更できることは勿論である。
また、左右の磁気バランスを不均衡とする方法としては、例えば、鉄芯の両端に位置する磁極部の形状、あるいは、可動鉄片の両端部の形状を異ならしめてよく、また、可動鉄片の回動支点となる突条を中心から偏心した位置に設けてもよい。
【００３５】
【発明の効果】
本発明によれば、スプールを１８０度反転させても、スプールを反転させない場合と同様、他の構成部品に組み付けて使用できる。しかも、スプールを１８０度反転させることにより、左右の磁気バランスが逆になる。このため、１種類のスプールを異なる仕様態様で使用でき、部品管理が簡単になるとともに、１種類の成形金型を準備するだけでよく、生産コストを低減できるという効果がある。
【図面の簡単な説明】
【図１】本発明にかかる電磁石装置を適用した電磁継電器を示す分解斜視図である。
【図２】図１で示した電磁継電器の縦断面図である。
【図３】図１で示したベースブロックの分解斜視図である。
【図４】図Ａは図３で示したベースブロックの平面図、図Ｂは縦断面図である。
【図５】図Ａは図３で示したベースブロックを下方側から見た斜視図、図Ｂは図Ａの部分拡大図である。
【図６】図１で示した電磁石ブロックを下方側から見た斜視図である。
【図７】図１で示した電磁石ブロックを構成するスプールを示し、図Ａは平面図、図Ｂは正面図、図Ｃは底面図である。
【図８】図７で示したスプールの異なる使用態様を示し、図Ａは平面、図Ｂは正面図、図Ｃは底面図である。
【符号の説明】
１０…ベースブロック、２０…ベース、２１…共通固定接点端子、２１ａ…共通固定接点部、２２…常開固定接点端子、２２ａ…常開固定接点部、２３…常閉固定接点端子、２３ａ…常閉固定接点部、３０…下シールド板、３５…復帰バネ、４０，５０…可動接点ブロック、４１，４６…可動接触片、５０…上シールド板、５１，５２…挿通孔、５３ａ，５３ｂ，５４ａ，５４ｂ…アース接点部、５５ａ，５５ｂ，５５ｃ，５５ｄ…シールド用舌片、５６…アース端子、６０…可動鉄片、６１…突条、６２…遮磁板、６５…押圧バネ、６６…支持突起、６７，６８…弾性腕部、７０…電磁石ブロック、７１…スプール、７１ａ…スプールの軸心、７２…胴部、７３，７４…鍔部、７３ａ，７３ｂ，７３ｃ，７４ａ，７４ｂ，７４ｃ…コイル端子孔、７５…支持台、７５ａ…収容凹部、７５ｂ…切り欠き部、９０…ケース、９１…ガス抜き部。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electromagnetic relay, and more particularly to a spool shape of an electromagnet device incorporated therein.
[0002]
[Prior art and problems to be solved by the invention]
2. Description of the Related Art Conventionally, there are electromagnetic relays incorporating an electromagnet device that switch a contact by rotating a movable iron piece supported so as to be self-resetable by making the left and right magnetic balance unbalanced. As such an electromagnetic relay, for example, as disclosed in Japanese Patent Laid-Open No. 10-208601, there is a self-recovery electromagnetic relay that alternately opens and closes a normally closed fixed contact 21a and a normally open fixed contact 22a.
That is, by rotating the movable block 50 with the movable iron piece 40 that rotates based on the excitation and demagnetization of the electromagnet block 30, the normally closed movable contact piece 53a is changed to the common fixed contact 23b and the normally closed fixed contact 21a, and The normally open movable contact piece 53b is alternately brought into contact with and separated from the common fixed contact 23a and the normally open fixed contact 22a.
[0003]
However, when the electromagnetic relay is mounted on a printed board or the like and used, different contact arrangement specifications may be required on the circuit wiring without changing the terminal mounting state. For example, in a certain specification, like the above-described electromagnetic relay, an electromagnetic relay having a normally closed fixed contact 21a on the left side of the electromagnet block 30 and a normally open fixed contact 22a on the right side thereof is mounted on a printed circuit board. On the other hand, in other specifications, when there is a demand for a contact arrangement opposite to the above-described contact arrangement on the circuit wiring, a normally closed fixed contact 21a is provided on the right side of the electromagnet block 30 and normally opened on the left side thereof. An electromagnetic relay having a fixed contact 22a is required. In such a case, in the electromagnetic relay according to the conventional example, it is necessary to prepare two kinds of movable bases, a normally closed fixed contact terminal, a common fixed terminal, a normally open fixed contact terminal, etc. in preparation for different specifications. . For this reason, the number of parts increases, and parts management becomes complicated. In addition, two types of molding dies and press dies must always be prepared in order to manufacture the movable table and the contact terminals, which raises a problem of increasing production costs.
[0004]
On the other hand, as another electromagnetic relay incorporating an electromagnet device, for example, there is one disclosed in JP-A-9-231895. In this publication, a self-holding electromagnetic relay is mainly disclosed as an embodiment, but it is also disclosed that the magnetic balance is broken and used as a self-returning electromagnetic relay. And when making the above-mentioned electromagnetic relay into a self-recovery type, for example, arranging permanent magnet 30 in the position eccentric from the center of electromagnet block 10 is performed.
[0005]
However, even an electromagnetic relay that is self-resetting as described above may need to be used in the reverse specification depending on the installation environment. In such a case, two types of base block 10, spool 12 and the like must be prepared as in the conventional example described above. For this reason, the number of parts increases, parts management becomes complicated, and two types of molding dies must be prepared for molding the spool and the base block, resulting in increased production costs.
[0006]
In view of the above problems, an object of the present invention is to provide an electromagnetic relay that does not require preparation of a plurality of molds for manufacturing and can be easily managed.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, an electromagnetic relay according to the present invention comprises a base, an upper shield plate assembled to the base so as to cover a contact mechanism for high-frequency signal transmission mounted on the base, and a lower surface of the base. a lower shield plate assembly so as to cover the permanent magnet is disposed on the lower surface of the iron core is assembled in the body of the spool, and is formed by winding a coil, arranged on the upper side of the upper shield plate An electromagnet device partitioned from the contact mechanism portion and a movable iron piece rotatably attached to the lower end surface of the permanent magnet. The movable iron piece is like a seesaw based on excitation and demagnetization of the electromagnet device. by turning, to drive the contact mechanism portion from the insertion hole provided on said shield plate, to be attached to the permanent magnet at a position eccentric from the center of the spool In the electromagnetic relay in which the left and right magnetic balance is unbalanced and the movable iron piece is capable of self-recovering, a flange portion is formed on both ends of the body portion of the spool so as to be bilaterally symmetric, , the position at which the point-symmetrical about the axis located at the center of the spool, while the Ru provided coil terminal holes can be inserted coil terminals respectively, for high frequency signal transmission of the contact mechanism portion projecting from said base side The terminal is bent downward, and the base of the outer surface of the high-frequency signal transmission terminal is an extended portion extending from the outer peripheral edge of the upper shield plate so as to be along the outer surface of the high-frequency signal transmission terminal. The two high-frequency signals that are provided in parallel between the two ground terminals that are covered in a non-contact state and extend downward from both ends bent to the inside of the extended part. There the terminals feed, as structure that is arranged on the same straight line.
[0008]
Therefore, according to the present invention, even if the spool is inverted 180 degrees, it can be used by being assembled to other components as in the case where the spool is not inverted. Moreover, by reversing the spool by 180 degrees, the left and right magnetic balance is reversed. For this reason, one type of spool can be used in different specification modes, parts management is simplified, and only one type of molding die needs to be prepared, thereby reducing production costs.
[0009]
As another invention, the base, the upper shield plate assembled to the base so as to cover the high-frequency signal transmission contact mechanism mounted on the base, and the lower shield assembled to cover the lower surface of the base A permanent magnet is arranged on the lower surface of the iron core assembled to the shield plate and the body portion of the spool, and the coil is wound, and is arranged above the upper shield plate and separated from the contact mechanism portion. An electromagnetic device, and a movable iron piece rotatably attached to the lower end surface of the permanent magnet, and by rotating the movable iron piece like a seesaw based on excitation and demagnetization of the electromagnet device, to drive the contact mechanism portion from the insertion hole provided in the upper shield plate, the shape of the pole portion located at one end of the iron core to be made different from the shape of the magnetic pole portion located at the other end of said iron core In the electromagnetic relay in which the left and right magnetic balance is unbalanced and the movable iron piece is capable of self-recovering, a flange is formed on each end of the body of the spool so as to be bilaterally symmetric. Among them, a coil terminal hole into which a coil terminal can be inserted is provided at a point symmetric with respect to an axial center located at the center of the spool, while the contact mechanism portion protruding from the side surface of the base is for high-frequency signal transmission. The terminal is bent downward, and the base of the outer surface of the high-frequency signal transmission terminal is an extended portion extending from the outer peripheral edge of the upper shield plate so as to be along the outer surface of the high-frequency signal transmission terminal. The high-frequency signal provided in parallel between the two ground terminals, which are covered in a non-contact state and extend downward from both ends bent to the inside of the extended part, respectively. A transmission terminal, the may have been configured to arranged on the same straight line.
[0010]
According to the above-described invention, similar to the above-described effect, it is possible to reduce the production cost and simplify the parts management.
[0011]
According to another invention, the base, the upper shield plate assembled to the base so as to cover the high-frequency signal transmission contact mechanism mounted on the base, and the lower shield assembled so as to cover the lower surface of the base A permanent magnet is disposed on the lower surface of the iron core assembled to the plate and the body portion of the spool, and is formed by winding a coil. The permanent magnet is disposed above the upper shield plate and partitioned from the contact mechanism portion . an electromagnet device, a movable iron piece that is rotatably attracted to the lower end surface of the permanent magnet consists of the excitation of the electromagnet device, by rotating the movable iron piece like a seesaw on the basis of demagnetization, the upper The contact mechanism is driven from the insertion hole provided in the shield plate, and the rotational fulcrum of the movable iron piece is provided at a position eccentric from the center thereof, thereby making the left and right magnetic balance unbalanced. The serial movable iron piece in a self-return possible and the electromagnetic relay,
At the both ends of the body of the spool, flanges are formed so as to be bilaterally symmetric, and coil terminals are provided at positions that are symmetric about the axis centered at the center of the spool. while Ru is provided an insert can coil terminal holes respectively, by bending a high-frequency signal transmission terminals of the contact mechanism portion projecting from said base sides downwards, the base of the outer surface of the high-frequency signal transmission terminals, the upper shield The extension portion extending from the outer peripheral edge of the plate is covered in a non-contact state along the outer surface of the high-frequency signal transmission terminal, and downward from both ends bent to the inside of the extension portion. Two extended ground terminals and the high-frequency signal transmission terminal arranged in parallel between the ground terminals may be arranged on the same straight line .
[0012]
According to the above-described invention, similar to the above-described effect, it is possible to reduce the production cost and simplify the parts management.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments according to the present invention will be described with reference to the accompanying drawings of FIGS.
The electromagnetic relay according to the present embodiment is used for opening and closing a high-frequency circuit. As shown in FIG. 1, an electromagnetic block 70 in which a movable iron piece 60 is assembled is mounted on a base block 10 and a case 90. It is a thing covered.
[0014]
As shown in FIG. 3, the base block 10 is obtained by sandwiching a base 20 incorporating a pair of movable contact blocks 40 and 45 from above and below by a lower shield plate 30 and an upper shield plate 50.
[0015]
The base 20 is formed by punching out the common fixed contact terminal 21, the normally open fixed contact terminal 22 and the normally closed fixed contact terminal 23 from a lead frame (not shown), and then carrying them into a mold for insert molding. Then, the terminals 21, 22, and 23 are separated from the lead frame by press work, and are completed by bending. An insertion hole 24 for assembling a lower shield plate 30 to be described later is formed in the peripheral edge of the base 20. Further, the base 20 is formed with positioning concave portions 27a and 27b on both side end surfaces.
[0016]
The lower shield plate 30 is formed by punching a conductive plate-like material by press working and bending up a peripheral edge portion to form a standing wall 31. A bendable locking tongue 32 is appropriately formed on the upper end portion of the upright wall 31.
[0017]
Further, a return spring 35 is welded and integrated at the bottom center portion of the lower shield plate 30. Both end portions 36 and 37 of the return spring 35 are in pressure contact with lower end surfaces of movable contact blocks 40 and 45, which will be described later, and urge the movable contact pieces 41 and 46 upward.
[0018]
The movable contact blocks 40 and 45 are formed by insert molding movable contact pieces 41 and 46 made of conductive leaf springs, and are assembled along the vertical guide grooves 25 and 26 of the base 20. Therefore, both end portions of the movable contact piece 41 are brought into contact with and separated from the fixed contact portion 21 a of the common fixed contact terminal 21 and the fixed contact portion 22 a of the normally open fixed contact terminal 22, respectively. Further, both end portions of the movable contact piece 46 are brought into contact with and separated from the fixed contact portion 21a of the common fixed contact terminal 21 and the fixed contact portion 23a of the normally open fixed contact terminal 23, respectively.
[0019]
The upper shield plate 50 is made of a rectangular plate-like conductive material, and the movable contact blocks 40 and 45 protrude vertically through insertion holes 51 and 52 provided at two locations in the longitudinal direction. The upper shield plate 50 is provided with ground contact portions 53a and 53b so as to face each other with the insertion hole 51 therebetween, and 54a and 54b so as to face each other with the insertion hole 52 therebetween. It is. Further, the upper shield plate 50 has grounding terminals 56 extending from shielding tongues 55a, 55b, 55c, and 55d extending from the peripheral edge thereof. For example, as shown in FIG. 4B, the shielding tongue 55d covers the base portion of the common fixed contact terminal 21 protruding from the side surface of the base 20 to improve high frequency characteristics. Positioning claws 57a and 57b protrude laterally at both ends of the upper shield plate 50 (FIG. 4A).
[0020]
Next, the assembly process of the base block 10 will be described.
The upright wall 31 of the lower shield plate 30 with the return spring 35 integrated by welding is inserted into the insertion hole 24 of the base 20 from below. Then, the movable blocks 40 and 45 are assembled along the vertical guide grooves 25 and 26 of the base 20 and positioned at predetermined positions. Next, the upper shield plate 50 is assembled to the base 20, and the positioning claws 57a and 57b of the upper shield plate 50 are fitted and positioned in the positioning recesses 27a and 27b of the base 20, respectively. Then, the base 20 is sandwiched between the lower shield plate 30 and the upper shield plate 50 by bending the locking tongue piece 32 of the lower shield plate 30 inward. As a result, a stripline structure is formed, and the upper ends of the movable blocks 40 and 45 are pushed out from the insertion holes 51 and 52 of the upper shield plate 50 so that the assembly of the base block 10 is completed.
[0021]
The movable iron piece 60 is made of a plate-like magnetic material, and has a protrusion 61 formed at the center thereof to form a rotation fulcrum 61, and a magnetic shielding plate 62 is attached to one end of the upper surface. Further, the movable iron piece has a pressing spring 65 welded and integrated at the center of the lower surface (FIG. 6).
[0022]
The pressing spring 65 has a substantially cross-shaped planar shape, and is formed with support protrusions 66, 66 by bending both opposing ends at a substantially right angle. The support protrusions 66, 66 have a substantially triangular shape so that they can be self-aligned, and the tops thereof are located on the same straight line as the tops of the protrusions 61 of the movable iron piece 60. For this reason, since the rotation fulcrum of the movable iron piece 60 aligns on the same line, there exists an advantage that the movable iron piece 60 rotates smoothly. Furthermore, the elastic arm portions 67 and 68 are formed by pressing the opposite opposing ends of the pressing spring 65 (FIG. 6).
[0023]
In the electromagnet block 70, the iron core 80 and the coil terminals 83 and 8485 are assembled in the spool 71 and the coil 86 is wound, and then the permanent magnet 87 is assembled.
That is, as shown in FIG. 7A, the spool 71 has flanges 73 and 74 formed symmetrically on both ends of the body 72 around which the coil 86 is wound, and a support base 75 at the center of the body 72. Are integrally molded. A press-fitting groove 72 a into which an iron core 80 to be described later can be press-fitted is formed on the lower surface of the body portion 72.
[0024]
Also, the flange portions 73 and 74 have coil terminal holes 73a, 73b, 73c and 74a, 74b, 74c at positions that are point-symmetric with respect to the axis 71a (FIG. 7A) located at the center of the spool 70, respectively. Is formed. One of the two coil terminal holes 73a and 73b or 74a and 74b arranged in parallel is for a dummy terminal.
[0025]
Further, as shown in FIGS. 2 and 7C, an accommodation recess 75a is provided on the lower surface of the support base 75 so as to be eccentric to the left side of the axis 71a. For this reason, by attaching the substantially rectangular parallelepiped permanent magnet 87 to the housing recess 75a, the permanent magnet 87 can be disposed at a position eccentric to the left side from the axis 71a. Furthermore, a notch 75 b is formed at the lower edge of both side surfaces of the support base 75 so that the support protrusion 66 of the pressing spring 65 can be fitted.
[0026]
As shown in FIG. 2, the iron core 80 has a substantially hat-shaped cross section, is incorporated in the body portion 72 of the spool 71, and has projecting both end portions as magnetic pole portions 81 and 82.
[0027]
Therefore, to assemble the electromagnet block 70, the iron core 80 is press-fitted into the press-fitting groove 72a of the spool 71, and the coil terminals 83, 84 and 85 are respectively inserted into the coil terminal holes 73a, 73b and 74c of the flange portions 73 and 74. Press fit. Next, the coil 86 is wound around the body portion 72, and both end portions thereof are respectively connected to the upper end portions of the coil terminals 84 and 85 and soldered. Further, the electromagnet block 70 is completed by assembling the permanent magnet 87 to the housing recess 75 a provided on the lower surface of the support base 75 of the spool 71. Then, the support protrusions 66 and 66 of the pressing spring 65 are fitted into the positioning notches 75b and 75b provided on the support base 75 of the spool 71, respectively. Further, the movable iron piece 60 is attached to the electromagnet block 70 by attracting the movable iron piece 60 to the permanent magnet 87 (FIG. 6).
[0028]
The case 90 has a box shape that can be fitted to the base block 10 to which the electromagnet block 70 is assembled. And a sealing agent is apply | coated to the fitting surface of the said base block 10 and the said case 90, and the said sealing agent is hardened in a thermostat. And the assembly work of an electromagnetic relay is completed by extracting internal air from the degassing part 91 of the said case 90, heat-sealing, and making it a sealing state.
[0029]
According to the present embodiment, the normally open fixed contact portion 22a and the normally closed fixed contact portion 23a are disposed at both ends of the long side of the base 20, and both are located at positions apart from each other. Further, the normally open fixed contact terminal 22 and the normally closed fixed contact terminal 23 protrude laterally from the corners of one long side, and both are in a separated position. On the other hand, the common fixed contact terminal 21 protrudes laterally from the central part of the other long side facing the coil terminal 56, and protrudes laterally from the corner of the other long side facing the common fixed contact terminal 21. Between the normally open fixed contact terminal 22, the normally closed fixed contact terminal 23, the common fixed contact terminal 21, and the coil terminals 83 and 85, earth terminals 56 are respectively arranged. For this reason, according to this embodiment, there exists an advantage that the electromagnetic relay for high frequency switching which has the outstanding isolation characteristic can be obtained.
[0030]
Next, the operation of the electromagnetic relay having the above-described configuration will be described.
As shown in FIG. 2, when no voltage is applied to the coil 86, the one end 60 a of the movable iron piece 60 is attracted to the magnetic pole portion 81 of the iron core 80. For this reason, the elastic arm portion 68 of the pressing spring 65 pushes down the movable contact block 45. As a result, both end portions of the movable contact piece 46 are in contact with the common fixed contact portion 21a and the normally closed fixed contact portion 23a while resisting the spring force of the other end portion 37 of the return spring 35. On the other hand, the movable contact block 40 is biased upward by one end portion 36 of the return spring 35, and both end portions of the movable contact piece 41 are in contact with the ground contact portions 53 a and 53 b of the upper shield plate 50.
[0031]
When a voltage is applied to the coil 86 in a direction to cancel the magnetic flux of the permanent magnet 87, the magnetic pole portion 82 of the iron core 80 attracts the other end 60 b of the movable iron piece 60, and the movable iron piece 60 The top part is turned as a turning fulcrum. For this reason, the elastic arm portion 67 of the pressing spring 65 pushes down the movable contact block 40 against the spring force of the one end portion 36 of the return spring 35. As a result, the movable contact block 40 is lowered, and both end portions of the movable contact piece 41 are in contact with the common fixed contact portion 21a and the normally open fixed contact portion 22a. On the other hand, the movable contact block 45 is pushed up by the spring force of the other end portion 37 of the return spring 35, and both ends of the movable contact piece 46 are separated from the common fixed contact portion 21a and the normally closed fixed contact portion 23a. It contacts the ground contact portions 54a and 54b of the shield plate 50, respectively. Thereafter, the other end portion 60 b of the movable iron piece 60 is attracted to the magnetic pole portion 82 of the iron core 80 through the magnetic shielding plate 62.
[0032]
Further, when the application of voltage to the coil 86 is stopped, the magnetic balance of the electromagnet device 70 is unbalanced, and the magnetic force in the magnetic pole part 81 of the iron core 80 is stronger than the magnetic force of the magnetic pole part 82. For this reason, since the magnetic pole part 81 of the iron core 80 attracts the one end part 60a of the movable iron piece 60 is larger than the force of the magnetic pole part 82 of the iron core 80 attracts the other end part 60b of the movable iron piece 60, the movable iron piece 60 rotates in the opposite direction to that described above. For this reason, the elastic arm portion 68 of the pressing spring 65 pushes down the movable contact block 45, while the one end portion 36 of the return spring 65 pushes up the movable contact block 40. As a result, both ends of the movable contact piece 46 are in contact with the common fixed contact portion 21a and the normally open fixed contact portion 23a, while both ends of the movable contact piece 41 are in contact with the ground contact portions 53a and 53b of the upper shield plate 50. , Return to the original state.
[0033]
In the above-described embodiment, the normally closed fixed contact portion 23a is opened and closed by the movable contact block 45 located on the right side in FIG. 2, but there is a case where the normally closed fixed contact portion 22 is desired to be arranged on the left side. In such a case, for example, as shown in FIG. 8, the coil terminals 83, 84, and 85 are inserted into the coil terminal holes 74 a, 74 b, and 73 c of the spool 71, respectively, and the attachment position of the permanent magnet 87 is set to the spool 71. You may make it arrange | position to the right side rather than the axial center 71a (FIG. 8C).
According to the present embodiment, since the electromagnet block 70 having different specifications can be obtained with the same spool 71, one type of molding die can be used, and the production cost can be reduced. Further, since the number of parts to be managed is reduced, there is an advantage that parts management is simplified.
[0034]
Of course, the number and position of the coil terminal holes provided in the spool can be changed as needed.
In addition, as a method of making the left and right magnetic balance unbalanced, for example, the shape of the magnetic pole portion located at both ends of the iron core or the shape of both ends of the movable iron piece may be made different. You may provide the protrusion used as a fulcrum in the position eccentric from the center.
[0035]
【The invention's effect】
According to the present invention, even if the spool is inverted 180 degrees, it can be used by being assembled to other components as in the case where the spool is not inverted. Moreover, by reversing the spool by 180 degrees, the left and right magnetic balance is reversed. For this reason, one type of spool can be used in different specification modes, parts management is simplified, and only one type of molding die needs to be prepared, and production costs can be reduced.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an electromagnetic relay to which an electromagnet device according to the present invention is applied.
FIG. 2 is a longitudinal sectional view of the electromagnetic relay shown in FIG.
FIG. 3 is an exploded perspective view of the base block shown in FIG.
4 is a plan view of the base block shown in FIG. 3, and FIG. B is a longitudinal sectional view.
5 is a perspective view of the base block shown in FIG. 3 as viewed from below, and FIG. B is a partially enlarged view of FIG.
6 is a perspective view of the electromagnet block shown in FIG. 1 as viewed from below. FIG.
7 shows a spool constituting the electromagnet block shown in FIG. 1. FIG. A is a plan view, FIG. B is a front view, and FIG. C is a bottom view.
8 shows different usage modes of the spool shown in FIG. 7. FIG. A is a plan view, FIG. B is a front view, and FIG. C is a bottom view.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Base block, 20 ... Base, 21 ... Common fixed contact terminal, 21a ... Common fixed contact part, 22 ... Normally open fixed contact terminal, 22a ... Normally open fixed contact part, 23 ... Normally closed fixed contact terminal, 23a ... Normally Closed fixed contact portion, 30 ... lower shield plate, 35 ... return spring, 40, 50 ... movable contact block, 41, 46 ... movable contact piece, 50 ... upper shield plate, 51, 52 ... insertion hole, 53a, 53b, 54a , 54b ... ground contact portion, 55a, 55b, 55c, 55d ... shielding tongue piece, 56 ... ground terminal, 60 ... movable iron piece, 61 ... protrusion, 62 ... magnetic shielding plate, 65 ... pressing spring, 66 ... support protrusion , 67, 68 ... elastic arm part, 70 ... electromagnet block, 71 ... spool, 71a ... shaft center, 72 ... trunk part, 73, 74 ... collar part, 73a, 73b, 73c, 74a, 74b, 74c ... coil end Hole, 75 ... support stand, 75a ... accommodating recess, 75b ... notches, 90 ... case, 91 ... vent zone.

Claims

A base, an upper shield plate assembled to the base so as to cover the high-frequency signal transmission contact mechanism mounted on the base, a lower shield plate assembled to cover the lower surface of the base, and a spool body An electromagnet device which is formed by arranging a permanent magnet on the lower surface of the iron core assembled to the coil and winding a coil, and is arranged above the upper shield plate and partitioned from the contact mechanism portion; and the permanent magnet An insertion hole provided in the upper shield plate by rotating the movable iron piece like a seesaw based on excitation and demagnetization of the electromagnet device. Driving the contact mechanism and attaching the permanent magnet to a position eccentric from the center of the spool, thereby making the left and right magnetic balance unbalanced, In his own return possible and the electromagnetic relay,
At the both ends of the body of the spool, flanges are formed so as to be bilaterally symmetric, and coil terminals are provided at positions that are symmetric about the axis centered at the center of the spool. while Ru is provided an insert can coil terminal holes respectively,
The high-frequency signal transmission terminal of the contact mechanism protruding from the side surface of the base is bent downward, and the base of the outer surface of the high-frequency signal transmission terminal extends from the outer peripheral edge of the upper shield plate Two ground terminals extending downward from both ends bent to the inside of the extending portion, and coated in a non-contact state along the outer surface of the high-frequency signal transmission terminal, An electromagnetic relay , wherein the high-frequency signal transmission terminals arranged in parallel between ground terminals are arranged on the same straight line .

A base, an upper shield plate assembled to the base so as to cover the high-frequency signal transmission contact mechanism mounted on the base, a lower shield plate assembled to cover the lower surface of the base, and a spool body An electromagnet device, which is formed by arranging a permanent magnet on the lower surface of the iron core assembled on the upper surface of the iron core and winding the coil, and is arranged above the upper shield plate and partitioned from the contact mechanism portion; and the permanent magnet An insertion hole provided in the upper shield plate by rotating the movable iron piece like a seesaw based on excitation and demagnetization of the electromagnet device. Driving the contact mechanism part from the magnetic core and making the shape of the magnetic pole part located at one end of the iron core different from the shape of the magnetic pole part located at the other end of the iron core. In the electromagnetic relay in which the movable iron piece to allow self-reset by the imbalance,
At the both ends of the body of the spool, flanges are formed so as to be bilaterally symmetric, and coil terminals are provided at positions that are symmetric about the axis centered at the center of the spool. While providing coil terminal holes that can be inserted,
The high-frequency signal transmission terminal of the contact mechanism protruding from the side surface of the base is bent downward, and the base of the outer surface of the high-frequency signal transmission terminal extends from the outer peripheral edge of the upper shield plate Two ground terminals extending downward from both ends bent to the inside of the extending portion, and coated in a non-contact state along the outer surface of the high-frequency signal transmission terminal, An electromagnetic relay , wherein the high-frequency signal transmission terminals arranged in parallel between ground terminals are arranged on the same straight line .

A base, an upper shield plate assembled to the base so as to cover the high-frequency signal transmission contact mechanism mounted on the base, a lower shield plate assembled to cover the lower surface of the base, and a spool body An electromagnet device, which is formed by arranging a permanent magnet on the lower surface of the iron core assembled on the upper surface of the iron core and winding the coil, and is arranged above the upper shield plate and partitioned from the contact mechanism portion; and the permanent magnet An insertion hole provided in the upper shield plate by rotating the movable iron piece like a seesaw based on excitation and demagnetization of the electromagnet device. Driving the contact mechanism from the center and providing the pivotal fulcrum of the movable iron piece at a position decentered from the center thereof, thereby making the left and right magnetic balance unbalanced and making the movable iron piece self In return possible and the electromagnetic relay,
At the both ends of the body of the spool, flanges are formed so as to be bilaterally symmetric, and coil terminals are provided at positions that are symmetric about the axis centered at the center of the spool. while Ru is provided an insert can coil terminal holes respectively,
The high-frequency signal transmission terminal of the contact mechanism protruding from the side surface of the base is bent downward, and the base of the outer surface of the high-frequency signal transmission terminal extends from the outer peripheral edge of the upper shield plate Two ground terminals extending downward from both ends bent to the inside of the extending portion, and coated in a non-contact state along the outer surface of the high-frequency signal transmission terminal, An electromagnetic relay , wherein the high-frequency signal transmission terminals arranged in parallel between ground terminals are arranged on the same straight line .