JP3674088B2

JP3674088B2 - Electromagnetic equipment

Info

Publication number: JP3674088B2
Application number: JP18732995A
Authority: JP
Inventors: 衛勝又
Original assignee: Toshiba Lighting and Technology Corp
Current assignee: Toshiba Lighting and Technology Corp
Priority date: 1995-07-24
Filing date: 1995-07-24
Publication date: 2005-07-20
Anticipated expiration: 2015-07-24
Also published as: JPH0935966A

Description

【０００１】
【発明の属する利用分野】
本発明は、例えば蛍光灯器具などが備える放電灯安定器として使用される電磁機器に関する。
【０００２】
【従来の技術】
図１０ないし図１１を参照して、第１の従来技術について説明する。
【０００３】
５は電磁機器１を構成するトランス本体で、このトランス本体５は、コイル７を巻回する図示しないコイル巻回部の両端にそれぞれフランジ部９を形成したボビン１０と、このボビン１０に挿入される略Ｉ字状鉄板を積層した中央脚鉄心（図示せず）と、ボビン１０の両側にそれぞれ配置される略コ字状鉄板を積層した側脚鉄心１１，１１と、図示しない中央脚鉄心と両側脚鉄心１１，１１の両端を、筐形をした締付金具１２でそれぞれ締付固定したものからなる。
【０００４】
さらに、ボビン１０の両フランジ部９，９の上部には、それぞれ端子台１３，１３が外側に向けて延設され、これら端子台１３，１３には、複数の第１の端子金具１４が挿着されている。
【０００５】
２０はトランス本体５の一方端側に取付けられる第１の端板で、この第１の端板２０は、端板主体２１と、この端板主体２１の下端から内方に突出した平板状載置部２３と、端板主体２１の上端および両側端から内方に突出形成された凸状嵌合壁２２とから形成されている。さらに、第１の端板２０の内方上部には、第１の端子金具１４とそれぞれ接続される第２の端子金具３０が挿着されている。
【０００６】
２５はトランス本体５の他方端側に取付けられる第２の端板で、この第２の端板２５は、第１の端板２０と略同一の形状で、端板主体２７とこの端板主体２７の下端から内方に突出した平板状載置部２８と、端板主体２７の上端および両側端から内方に突出形成された凸状嵌合壁２９とから形成されている。
【０００７】
さらに、端板主体２７の中央には、略長方形をした樹脂充填用開口２６が穿設されている。また、第２の端板２５の内方上部には、第１の端子金具１４と接続される第２の端子金具３０がそれぞれ挿着されている。
【０００８】
トランス本体５は、図１０に示すように、底板１６とこの底板１６に図示しない固定部材で固定されたカバ−１８とから形成された両端開口にそれぞれ装着される第１の端板２０と第２の端板２５とからなるケ−ス１５内に内蔵されている。電磁機器１の組立て方法を説明する。
【０００９】
最初に、図１１に示すように、トランス本体５の一方端側の第１の端子金具１４と第１の端板２０の第２の端子金具２８、および、トランス本体５の他方端側の第１の端子金具１４と第２の端板２５の第２の端子金具２８とをそれぞれ合致させ、端子金具同士をそれぞれ半田付けなどで電気的に接続する。
【００１０】
つぎに、図１０に示すように、電気的に接続された第１の端板２０，第２の端板２５およびトランス本体５を底板１６の内面に載せる。
【００１１】
それから、カバ−１８をトランス本体５を覆うように取付けるとともに、カバ−１８の内方両端を第１の端板２０の嵌合壁２２および第２の端板２５の嵌合壁２９に係合させたのち、カバ−１８と底板１６とを図示しないリベットなどの固定部材で加締め固定する。なお、電源およびランプとの接続は、端板外側の端子金具との間で行う。
【００１２】
トランス本体５が収納された筒状ケ−ス１５内にポリエステル樹脂などを充填する方法を説明する。
【００１３】
樹脂充填用開口２６を上側にして、筒状ケ−ス１５を垂直に立設し、開口２６からポリエステル樹脂などを充填する。
【００１４】
図１２ないし図１３を参照して、第２の従来技術である複数のトランス本体で磁気回路を構成する電磁機器について説明する。なお、第１の従来技術と重複する部分の説明は省略する。
【００１５】
図１３に示すように、対向するトランス本体５同士の第１の端子金具１４，１４を合致させ、端子金具１４，１４同士を半田付けなどで電気的に接続する。それから、第１の従来技術と同様な手順で、トランス本体５の両端側にそれぞれ第１の端板２０と第２の端板２５をそれぞれ電気接続する。
【００１６】
次ぎに、図１２に示すように、底板１６ｂに載置し、カバ−１８ｂを図示しないリベットで加締め固定して電磁機器２とする。
【００１７】
【発明が解決しようとする課題】
上記のようにケ−ス内部のトランス本体の位置決めは、第１の従来技術の場合は、トランス本体の両端にそれぞれ設けられた第１の端子金具と端板の第２の端子金具との接続のみで行われている。このため、接続位置が不安定となるという問題があった。
【００１８】
さらに、第２の従来技術の場合は、トランス本体の両端にそれぞれ設けられた第１の端子金具と端板の第２の端子金具との接続、および、相対するトランス本体の第１の端子金具とで接続が行われている。このため、さらに、接続位置が不安定となるという問題があった。
【００１９】
つぎに、筒状ケ−ス内にポリエステル樹脂などを充填する場合、筒状ケ−スを垂直に立設し、ケ−ス上面の開口より樹脂を充填する。このため、トランス本体の自重および充填する際に生ずる樹脂の流れ力は、端子金具間を接続する半田付け部分のみで支えられているだけである。
【００２０】
そこで、半田量が少ない場合には、端子金具間の接続が外れたり、また、トランス本体の自重などにより、接続部に内部応力が生ずる。そのため、使用時に発生する振動などにより、半田部分が劣化するなど、端子金具間の接続の信頼性に問題があった。
【００２１】
さらに、第２の従来技術のように、複数のトランス本体で磁気回路を構成する場合、より以上のトランス本体の自重などが端子金具間の接続に加わるため、端子金具間の接続の信頼性が損なわれるという問題があった。
【００２２】
本発明は上記の点に鑑みてなされたもので、トランス本体の位置決めが確実、かつ、容易になるとともに、信頼性の高い端子金具間の接続構造を有する電磁機器を提供することを課題とする。
【００２３】
【課題を解決するための手段】
前記課題を達成するために、本発明に係る請求項１の電磁機器は、方形状のフランジ部が両端に形成されたボビンに巻回されたコイルと鉄心とからなるトランス本体と、前記フランジ部の一側辺より外方に突出して設けられた複数の第１の端子金具と、底板、この底板に固定されたカバー、及びこれら底板とカバーとがなす両端開口に装着された端板とからなり、前記トランス本体を前記底板に載置して内蔵した筒状ケースと、前記端板に装着されて、前記第１の端子金具と電気的に接続された第２の端子金具とからなる電磁機器において、
前記底板に載置される載置部を前記第２の端子金具と対向して前記端板に設け、この載置部と、前記第１の端子金具が取付けられた前記フランジ部の一側辺と平行状の他側辺とのうち、いずれか一方に他方に向けて突出する単一の係合凸部を設けるとともに、この係合凸部が係合する単一の係合凹部を前記他方に設けたことを特徴とする。
【００２４】
本発明に係る請求項２の電磁機器は、方形状のフランジ部が両端に形成されたボビンに巻回されたコイルと鉄心とからなる第１、第２のトランス本体と、一方の前記フランジ部の一側辺及び他方の前記フランジ部の一側辺より外方に突出して設けられた複数の第１の端子金具と、底板、この底板に固定されたカバー、及びこれら底板とカバーとがなす一端開口に装着された第１の端板、及び充填用開口を有して前記底板とカバーとがなす他端開口に装着された第２の端板とからなり、前記第１、第２のトランス本体を前記底板に載置して内蔵した筒状ケースと、前記第１、第２の端板に装着されて、前記一方のフランジ部に突設された前記第１の端子金具と電気的に接続された第２の端子金具と、前記充填用開口から前記ケースに充填された樹脂とからなり、前記第１、第２のトランス本体同士の隣接側端部に位置する他方の前記フランジ部の一側辺に突設された前記第１の端子金具同士が電気的に接続された電磁機器において、
前記底板に載置される載置部を前記第２の端子金具と対向して前記端板に設け、この載置部と、前記第１の端子金具が取付けられた前記一方のフランジ部の一側辺と平行状の他側辺とのうち、いずれか一方に他方に向けて突出する単一の係合凸部を設けるとともに、この係合凸部が係合する単一の係合凹部を前記他方に設け、前記充填用開口を有した前記第２の端板に近い方の前記第２のトランス本体の前記第１のトランス本体側端部に位置する一方のフランジ部の一側辺と平行状の他側辺に、外方に突出する係合部を設けるとともに、この係合部を受止める他の係合部を前記底板に設けたことを特徴とする。
【００２５】
上記請求項１の構成において、いずれか一方のトランス本体または端板の一部に係合凸部、および、他方に係合凸部に係合される係合凹部をそれぞれ形成したので、トランス本体と端板との位置決めは、係合凸部と係合凹部との係合によりなされる。
【００２６】
そのため、半田付けなどで端子金具間を電気的に接続したのちでも、係合凸部および係合凹部とでトランス本体と端板とは位置決めされているので、端子金具間の接続部に内部応力は生じない。
【００２７】
上記複数のトランス本体で構成される請求項２の構成において、上側に位置するトランス本体のボビンの一部に係合部を設け、この係合部に相対する載置部である底板に係合部を形成し、これら係合部同士とをそれぞれ係合させて、上側に位置するトランス本体を底板に位置決めする。
【００２８】
そのため、上側に位置するトランス本体の自重、および、充填する際に生ずる流れ力は、これら係合部同士に係合によって受止められるので、端子金具間の接続部へ内部応力は生じない。
【００２９】
【発明の実施の形態】
以下、図１ないし図４および図９を参照して本発明の第１の実施の形態を説明する。
【００３０】
３２は電磁機器３１を構成する第１のトランス本体で、この第１のトランス本体３２は、図４に示すように、このコイル３３が巻回されるコイル巻回部３４と、このコイル巻回部３４の両端にそれぞれ形成された略長方形状のフランジ部３５，３５とからなる第１のボビン３６と、この第１のボビン３６の軸心方向中央に形成された略長方形挿入孔３７に挿入される略Ｉ字状鉄板を積層した中央脚鉄心（図示せず）と、図１に示すように、この中央脚鉄心の軸心に沿って第１のボビン３６の両側に、それぞれ略コ字状鉄板を積層して配置される側脚鉄心４０，４０と、中央脚鉄心と両側脚鉄心４０，４０の両端を筐形をした締付金具４１でそれぞれ締付固定されたものからなる。
【００３１】
さらに、第１のボビン３６の両端に形成されたフランジ部３５，３５の下端中央には、外方に突出した略三角形状の第１の係合凸部４４がそれぞれ形成されている。また、フランジ部３５の上部には、コイルの引出線を通す溝状切欠３８が複数形成され、端子台４８が外側に向けて延設されている。これら端子台４８，４８には、第１の端子金具４９がそれぞれ複数挿着されている。
【００３２】
５５は第１のトランス本体３２の長手方向一方端に取付けられる略長方形状をした第１の端板で、この第１の端板５５は、端板主体５６と端板主体５６の下方端から内方に略水平方向に突出形成された板状載置部５７と、この板状載置部５７の中央に形成された、第１の係合凸部４４と係合する略三角形状の第１の係合凹部４５と、端板主体５６の上部および両側部から内方に突出形成された嵌合壁５８から構成されている。
【００３３】
さらに、端板主体５６の上部内方から突出して複数の第２の端子金具５０が挿着されるとともに、端板主体５６の上部外方から突出してリ−ド線挿入孔６８が形成された挿入孔台部６７が設けられている。なお、挿入孔６８から図示しないリ−ド線を挿入させたとき、第２の端子金具５０にリ−ド線が接触固定される。
【００３４】
６０は第１のトランス本体３２の他方端に取付けられる略長方形状の第２の端板で、第１の端板５５と略同一の形状をなし、端板主体５６には、ポリエステル樹脂などを充填する樹脂充填用開口６１が穿設され、端板主体５６の下端には、第１の係合凸部４４と係合する第１の係合凹部４５が形成されている載置部５７が形成され、さらに、端板主体５６の上端および両側端には、嵌合壁５８が形成されている。また、端板主体５６の内方には、第２の端子金具５０が複数挿着されるとともに、端板主体５６の外方には、リ−ド線挿入孔６８が形成された挿入孔台部６７が設けられている。
【００３５】
また、第１のトランス本体３２は、図２および図９に示すように、断面略コ字状の底板７０と、この底板７０に固定部材であるリベット７３でかしめて固定されたカバ−７１とから形成された両端開口に装着される第１の端板５５と第２の端板６０とからなる筒状ケ−ス７４内に内蔵されている。
【００３６】
電磁機器３１の組立て方法を説明する。
【００３７】
第１のトランス本体３２の両端にそれぞれ挿着された第１の端子金具４９と、第１の端板５５および第２の端板６０にそれぞれ挿着された第２の端子金具５０同士の位置決めは、図３に示すように、第１のボビン３６の両端底板７０側にそれぞれ突出形成した第１の係合凸部４４に向けて、第１の端板５５の底板７０側に設けた第１の係合凹部４５と、第２の端板６０の底板７０側に設けた第１の係合凹部４５とをそれぞれスライドさせ、第１の係合凸部４４と第１の係合凹部４５とをそれぞれ係合させる。そうすると、第１のボビン３６の両端上部側にそれぞれ外方に突出形成された第１の端子金具４９と、第１の端板５５の上部側に設けた第２の端子金具５０および第２の端板６０の上方側に設けた第２の端子金具５０とがそれぞれ合致する。
【００３８】
このとき、第１の係合凹部４５と第１の係合凸部４４を、図３に示すように、テ−パ−状にしておけば、よりスム−ズに挿入係合する。
【００３９】
それから、第１の端子金具４９と第２の端子金具５０間の電気的接続を半田付けなどで行う。そののち、図２に示すように、底板７０の上面に載置し、カバ−７１で覆い、複数のリベット７３でカバ−７１を底板７０にかしめて固定する。
【００４０】
なお、第１のトランス本体３２の両端にそれぞれ装着された第１の端子金具４９と、第１の端板５５および第２の端板６０にそれぞれ設けられた第２の端子金具５０同士の位置決めは、予め、底板７０の上面に、第１のトランス本体３２と第１の端板５５および第２の端板６０をそれぞれ載置し、図３に示すように、第１のトランス本体３２の第１のボビン３６の両端底板側にそれぞれ外方に突出形成した第１の係合凸部４４に向けて、第１の端板５５の底板側に設けた第１の係合凹部４５および第２の端板６０の底板側に設けた第１の係合凹部４５をそれぞれスライドさせて、第１の係合凸部４４と第１の係合凹部４５とをそれぞれ係合させてもよい。このように、予め、底板７０の上面に、第１のトランス本体３２と第１の端板５５および第２の端板６０をそれぞれ載置したのち、端子金具同士を接続し、半田付けすると、より一層位置決めが確実となる。
【００４１】
さらに、温度上昇の低下および騒音の低減などを目的として、筒状ケ−ス７４内に、第２の端板６０の開口６１よりポリエステル樹脂などを充填する。充填作業は、筒状ケ−ス７４を垂直に立て、開口６１からポリエステル樹脂などを充填して行う。
【００４２】
図５ないし図８を参照して、複数のトランス本体で構成される他の実施の形態に係る電磁機器について説明する。なお、トランス本体の端子金具と端板の端子金具との接続に係る構造は上記で説明したものと同一である。
【００４３】
８２は電磁機器８１を構成する第２のトランス本体で、この第２のトランス本体８２は、コイル８３が巻回されるコイル巻回部８４と、このコイル巻回部８４の両端にそれぞれ形成された略長方形状のフランジ部８５，８５とからなる第２のボビン８６と、この第２のボビン８６の軸心方向中央に略長方形をした挿入孔３７が形成され、この挿入孔３７に挿入される略Ｉ字状鉄板を積層した中央脚鉄心（図示せず）と、この中央脚鉄心の軸心に沿って第２のボビン８６の両側に、それぞれ略コ字状鉄板を積層して配置されている側脚鉄心４０，４０と、中央脚鉄心と両側脚鉄心４０，４０の両端を筐形をした締付金具４１でそれぞれ締付固定されたものからなる。
【００４４】
さらに、第２のボビン８６の一方側フランジ部８５の底板側には、外方にそれぞれ相反方向に拡開する傾斜面８８を有する台形凸部８９，８９が形成され、これら台形凸部８９，８９の間に第２の係合凹部８７が形成される。
【００４５】
第２のボビン８６の他方側フランジ部８５の底板側の中央には、外方に突出した略台形状の第１の係合凸部４４が形成されている。また、それぞれのフランジ部８５の上部には、コイルの引出線を通す溝状切欠３８が複数形成されているとともに端子台４８，４８が外側に向けてそれぞれ延設されている。これら端子台４８，４８には、第１の端子金具４９が複数挿着されている。
【００４６】
また、図６に示されるように、電気的に接続された第２のトランス本体８２は、断面略コ字状の底板９１と、この底板９１に図示しないリベットなどでかしめて固定されたカバ−９３とから形成された両端開口に装着される第１の端板５５と第２の端板６０とからなる筒状ケ−ス９４内に内蔵されている。
【００４７】
図６に示されるように、筒状ケ−ス９４内に内蔵され、第２の端板６０の第２のトランス本体８２に設けられた第２の係合凹部８７の両傾斜面８８と当接係合する底板９１の内面側に、第２の係合凸部９２をそれぞれ突出形成する。
【００４８】
電磁機器８１の組立て手順につき説明する。
【００４９】
最初に、底板９１の内面側に、第２の係合凹部８７同士が対向するように、一対の第２のトランス本体８２を第２の係合凸部９２を挟んで離間させて載置する。それから、第２の端板６０側の第２のトランス本体８２を第２の係合凸部９２側にそれぞれスライドさせて、第２の係合凸部９２の傾斜面８８と第２の係合凸部９２とを係合させる。そののち、他方の第２のトランス本体８２を一方側の第２のトランス本体８２側に移動させる。それにより、図８に示すように、台形凸部８９の先端に形成された突当部９０同士が当接されるとともに、第２のトランス本体８２の第１の端子金具４９同士が合致する。
【００５０】
さらに、第１の端板５５および第２の端板６０をそれぞれ底板９１の内面側に載置し、それぞれ第２のトランス本体８２側にスライドさせると、第１の端板５５の第１の係合凹部４５および第２の端板６０の第１の係合凹部４５とが第２のトランス本体８２の第１の係合凸部４４にそれぞれ係合するとともに、第１の端板５５および第２の端板６０のそれぞれの第２の端子金具５０と第２のトランス本体の第１の端子金具４９同士が合致する。それから、端子金具同士を半田付けなどで電気的に接続したのち、カバ−９３を第２のトランス本体８２などを覆うように取付け、図示しない複数のリベットなどでカバ−９３を底板９１に締付固定する。
【００５１】
筒状ケ−ス９４内にポリエステルなどの樹脂を充填させる場合には、第２の端板６０側を上側にし、筒状ケ−ス９４を垂直に立て、第２の端板６０の開口６１から樹脂を充填する。
【００５２】
上記実施の形態の作用を説明する。
【００５３】
第１のトランス本体３２の両端にそれぞれ装着された第１の端子金具４９と、第１の端板５５に装着された第２の端子金具５０および第２の端板６０に装着された第２の端子金具５０との接続位置は、第１のトランス本体３２の両端底板７０側にそれぞれ形成された第１の係合凸部４４，４４に向けて、第２の端板６０の底板７０側にそれぞれ形成された第１の係合凹部４５をスライドさせると、第１の係合凸部４４と第１の係合凹部４５とが係合するとともに、第１のトランス本体３２の両端にそれぞれ設けた第１の端子金具４９と端板５５，６０の第２の端子金具５０とが合致する。このように、第１のトランス本体３２の第１の係合凸部４４と端板５５，６０の第１の係合凹部４５とが係合し、端子金具４９，５０同士の位置が決まるので、端子金具同士の位置決めが容易、確実になる。
【００５４】
また、端子金具４９、５０間を半田付けなどで電気的に接続したのちでも、第１の係合凹部４５および第１の係合凸部４４で、各々の部品が位置決めされているので、端子金具４９、５０間の接続部に内部応力は生じない。
【００５５】
同様に、筒状ケ−ス７４を垂直に立て、ポリエステル樹脂などをケ−ス７４内に充填する際にも、第１の係合凹部４５および第１の係合凸部４４で、各々の部品が位置決め、支持されているので、トランス本体の自重および樹脂を充填する際に生ずる樹脂の流れ力が、直接端子金具間に加わらず、信頼性の高い端子金具の接続構造を得る。
【００５６】
複数のトランス本体で構成する電磁機器で、少なくとも、充填時、上側に位置するトランス本体８２に第２の係合凹部８７を設け、相対する底板９１に第２の係合凹部８７に係合する第２の係合凸部９２を突出形成し、底板９１の第２の係合凸部９２にトランス本体の第２の係合凹部８７が係合して受止める構造にしておけば、トランス本体同士の端子金具４９，４９間の位置決めが容易、確実になるとともに、トランス本体同士の端子金具間を半田付けなどで電気的に接続したのちでも、端子金具間に内部応力が生じない。
【００５７】
同様に、筒状ケ−ス７４を垂直に立て、ポリエステル樹脂などをケ−ス７４内充填する際にも、上側に位置するトランス本体は、底板９１の第２の係合凸部９２で受け止め支持されているので、トランス本体の自重および樹脂を充填する際に生ずる樹脂の流れ力は、直接端子金具間に加わらず、信頼性の高い端子金具の接続構造を得る。
【００５８】
【発明の効果】
以上詳記したように請求項１記載の本発明によれば、トランス本体と相対する端板のいずれか一方に係合凸部を、他方にこの係合凸部に係合される係合凹部をそれぞれ設けたので、端子金具同士の位置決めが容易、確実になる。さらに、端子金具間を半田付けなどで電気的に接続したのちでも、係合凹部および係合凸部で、各々の部品が位置決めされているので、端子金具間の接続部に内部応力は生じない。
【００５９】
請求項２記載の本発明によれば、相対するトランス本体のいずれか一方側のボビンに外方に突出する係合部を設け、この係合部に係合する係合部を相対するトランス本体が載置される載置部である底板に形成したので、トランス本体同士の端子金具間の位置決めが容易、確実になるとともに、トランス本体同士の端子金具間を半田付けなどで電気的に接続したのちでも、端子金具間に内部応力が生じない。
【図面の簡単な説明】
【図１】本発明の一実施の形態に係る電磁機器のトランス本体と端板との組立て状態を示す斜視図。
【図２】同実施の形態における電磁機器を示す断面図。
【図３】同実施の形態における第１のボビンと第１の端板とを示す斜視図。
【図４】同実施の形態における第１のボビンを示す斜視図。
【図５】本発明の他の実施の形態に係る電磁機器のトランス本体同士およびトランス本体と端板との組立て状態を示す斜視図。
【図６】他の実施の形態における電磁機器を示す断面図。
【図７】他の実施の形態における第２のボビンを示す斜視図。
【図８】他の実施の形態における第２のボビンの底板との係合状態を示す斜視図。
【図９】一般的な電磁機器の全体構造を示す斜視図。
【図１０】第１の従来技術の電磁機器を示す断面図。
【図１１】第１の従来技術に係るトランス本体と端板との組立て状態を示す斜視図。
【図１２】第２の従来技術の電磁機器を示す断面図。
【図１３】第２の従来技術に係るトランス本体と端板との組立て状態を示す斜視図。
【符号の説明】
３２…第１のトランス本体，３５…フランジ部，３６…ボビン，４４…第１の係合凸部，４５…第１の係合凹部，４８…端子台，４９…第１の端子金具，５０…第２の端子金具，５５…第１の端板，５７…載置部，６０…端板，６１…樹脂充填用開口，７０…底板，７１…カバー，７３…リベット，７４…筒状ケース，８２…トランス本体，８５…フランジ部，８６…ボビン，８７…係合凹部（係合部），８９…台形凸部，９０…突当部，９１…底板、９２…係合凸部（係合部），９３…カバー，９４…筒状ケース。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electromagnetic device used as a discharge lamp stabilizer provided in, for example, a fluorescent lamp fixture.
[0002]
[Prior art]
The first prior art will be described with reference to FIGS.
[0003]
Reference numeral 5 denotes a transformer body constituting the electromagnetic device 1. The transformer body 5 is inserted into a bobbin 10 having flange portions 9 formed at both ends of a coil winding portion (not shown) around which the coil 7 is wound, and the bobbin 10. A central leg iron core (not shown) in which a substantially I-shaped iron plate is laminated, side leg iron cores 11 and 11 in which a substantially U-shaped iron plate arranged on each side of the bobbin 10 is laminated, and a central leg iron core (not shown) The both ends of the leg iron cores 11 and 11 are each fixed by being fastened by a housing-like fastening metal fitting 12.
[0004]
Further, terminal blocks 13 and 13 are extended outwardly from the upper portions of both flange portions 9 and 9 of the bobbin 10, and a plurality of first terminal fittings 14 are inserted into these terminal blocks 13 and 13, respectively. It is worn.
[0005]
Reference numeral 20 denotes a first end plate attached to one end side of the transformer body 5, and the first end plate 20 includes an end plate main body 21 and a flat plate-like mounting protruding inward from the lower end of the end plate main body 21. The mounting portion 23 is formed from an upper end of the end plate main body 21 and a convex fitting wall 22 that protrudes inward from both side ends. Further, second terminal fittings 30 respectively connected to the first terminal fittings 14 are inserted into the inner upper portions of the first end plates 20.
[0006]
Reference numeral 25 denotes a second end plate attached to the other end side of the transformer main body 5. The second end plate 25 has substantially the same shape as the first end plate 20, and the end plate main body 27 and the end plate main body. 27 is formed of a flat plate-like mounting portion 28 projecting inward from the lower end of 27, and a convex fitting wall 29 projecting inward from the upper end and both side ends of the end plate main body 27.
[0007]
Furthermore, a resin filling opening 26 having a substantially rectangular shape is formed in the center of the end plate main body 27. Further, second terminal fittings 30 connected to the first terminal fittings 14 are respectively inserted and attached to the inner upper portions of the second end plates 25.
[0008]
As shown in FIG. 10, the transformer body 5 includes a first end plate 20 and a first end plate 20 that are respectively attached to both end openings formed from a bottom plate 16 and a cover 18 fixed to the bottom plate 16 by a fixing member (not shown). It is built in a case 15 comprising two end plates 25. A method for assembling the electromagnetic device 1 will be described.
[0009]
First, as shown in FIG. 11, the first terminal fitting 14 on one end side of the transformer body 5, the second terminal fitting 28 of the first end plate 20, and the second terminal fitting 28 on the other end side of the transformer body 5. The first terminal fitting 14 and the second terminal fitting 28 of the second end plate 25 are matched, and the terminal fittings are electrically connected to each other by soldering or the like.
[0010]
Next, as shown in FIG. 10, the electrically connected first end plate 20, second end plate 25, and transformer body 5 are placed on the inner surface of the bottom plate 16.
[0011]
Then, the cover 18 is attached so as to cover the transformer body 5, and both inner ends of the cover 18 are engaged with the fitting wall 22 of the first end plate 20 and the fitting wall 29 of the second end plate 25. After that, the cover 18 and the bottom plate 16 are fixed by caulking with a fixing member such as a rivet (not shown). The power source and the lamp are connected to the terminal fitting outside the end plate.
[0012]
A method of filling a cylindrical case 15 in which the transformer main body 5 is stored with a polyester resin or the like will be described.
[0013]
The cylindrical case 15 is erected vertically with the resin filling opening 26 facing upward, and a polyester resin or the like is filled from the opening 26.
[0014]
With reference to FIG. 12 thru | or FIG. 13, the electromagnetic device which comprises a magnetic circuit with the some transformer main body which is the 2nd prior art is demonstrated. The description of the same parts as those in the first prior art is omitted.
[0015]
As shown in FIG. 13, the first terminal fittings 14 and 14 of the opposing transformer bodies 5 are matched, and the terminal fittings 14 and 14 are electrically connected by soldering or the like. Then, the first end plate 20 and the second end plate 25 are respectively electrically connected to both end sides of the transformer body 5 in the same procedure as in the first prior art.
[0016]
Next, as shown in FIG. 12, it is placed on the bottom plate 16b, and the cover 18b is caulked and fixed with a rivet (not shown) to obtain the electromagnetic device 2.
[0017]
[Problems to be solved by the invention]
As described above, in the case of the first prior art, the positioning of the transformer main body inside the case is performed by connecting the first terminal fittings provided at both ends of the transformer main body and the second terminal fittings of the end plates. Is done only in. For this reason, there existed a problem that a connection position became unstable.
[0018]
Further, in the case of the second prior art, the connection between the first terminal fittings provided at both ends of the transformer body and the second terminal fittings of the end plates, and the first terminal fittings of the opposing transformer body. And the connection is made. For this reason, there is a further problem that the connection position becomes unstable.
[0019]
Next, when a polyester resin or the like is filled in the cylindrical case, the cylindrical case is erected vertically, and the resin is filled from the opening on the upper surface of the case. For this reason, the flow weight of the resin generated when the transformer body is self-weighted and filled is only supported by the soldering portion connecting the terminal fittings.
[0020]
Therefore, when the amount of solder is small, the connection between the terminal fittings is disconnected, and internal stress is generated in the connection portion due to the weight of the transformer body. For this reason, there has been a problem in the reliability of connection between the terminal fittings, such as deterioration of the solder part due to vibration generated during use.
[0021]
Further, when a magnetic circuit is configured with a plurality of transformer bodies as in the second prior art, more weight of the transformer body is added to the connection between the terminal fittings, so the reliability of the connection between the terminal fittings is improved. There was a problem of being damaged.
[0022]
The present invention has been made in view of the above points, and it is an object of the present invention to provide an electromagnetic device having a reliable connection structure between terminal fittings while the positioning of the transformer body is reliable and easy. .
[0023]
[Means for Solving the Problems]
In order to achieve the above object, an electromagnetic device according to claim 1 of the present invention includes a transformer body including a coil and an iron core wound around a bobbin having square flange portions formed at both ends, and the flange portion. A plurality of first terminal fittings projecting outward from one side , a bottom plate, a cover fixed to the bottom plate, and end plates attached to both end openings formed by the bottom plate and the cover. And an electromagnetic casing comprising a cylindrical case in which the transformer body is mounted on the bottom plate and a second terminal fitting mounted on the end plate and electrically connected to the first terminal fitting. In the equipment
A placement portion placed on the bottom plate is provided on the end plate so as to face the second terminal fitting, and the placement portion and one side of the flange portion to which the first terminal fitting is attached And the other side of the parallel shape are provided with a single engaging convex portion projecting toward the other, and a single engaging concave portion with which the engaging convex portion engages is provided on the other side. It is characterized by being provided in.
[0024]
According to a second aspect of the present invention, there is provided an electromagnetic device comprising: a first and a second transformer body including a coil and an iron core wound around a bobbin having square flange portions formed at both ends; and the one flange portion. And a plurality of first terminal fittings protruding outward from one side of the other flange portion, the bottom plate, a cover fixed to the bottom plate, and the bottom plate and the cover. A first end plate attached to one end opening, and a second end plate having a filling opening and attached to the other end opening formed by the bottom plate and the cover. A cylindrical case in which a transformer body is mounted on the bottom plate and built in, and the first terminal fitting mounted on the first and second end plates and projecting from the one flange portion are electrically connected The second terminal fitting connected to the case and the case filled from the filling opening The first terminal fittings, which are made of grease and project from one side of the other flange portion located at the adjacent side ends of the first and second transformer bodies, are electrically connected to each other. In electromagnetic equipment
A placement portion placed on the bottom plate is provided on the end plate so as to face the second terminal fitting, and the placement portion and one of the flange portions to which the first terminal fitting is attached. A single engaging protrusion that protrudes toward the other is provided on either one of the side and the parallel other side, and a single engaging recess that engages with the engaging protrusion One side of one flange portion located on the first transformer body side end of the second transformer body closer to the second end plate provided on the other side and having the filling opening; An engaging part protruding outward is provided on the other side of the parallel shape, and another engaging part for receiving the engaging part is provided on the bottom plate .
[0025]
In the configuration according to claim 1, since the engaging convex part is formed on a part of either one of the transformer main body or the end plate and the engaging concave part engaged with the engaging convex part is formed on the other, the transformer main body The end plate and the end plate are positioned by engaging the engaging convex portion and the engaging concave portion.
[0026]
For this reason, even after the terminal fittings are electrically connected by soldering or the like, the transformer main body and the end plate are positioned by the engaging convex portions and the engaging concave portions. Does not occur.
[0027]
3. The structure according to claim 2, comprising the plurality of transformer main bodies, wherein an engaging portion is provided on a part of the bobbin of the transformer main body located on the upper side, and is engaged with a bottom plate which is a mounting portion facing the engaging portion. Are formed, the engaging portions are engaged with each other, and the upper transformer body is positioned on the bottom plate.
[0028]
For this reason, the weight of the transformer body located on the upper side and the flow force generated when the transformer body is filled are received by the engagement between the engagement portions, so that no internal stress is generated in the connection portion between the terminal fittings.
[0029]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 to 4 and FIG.
[0030]
Reference numeral 32 denotes a first transformer main body constituting the electromagnetic device 31. The first transformer main body 32 includes a coil winding portion 34 around which the coil 33 is wound and a coil winding as shown in FIG. Inserted into a first bobbin 36 comprising substantially rectangular flange portions 35, 35 formed at both ends of the portion 34, and a substantially rectangular insertion hole 37 formed in the center of the first bobbin 36 in the axial direction. A central leg iron core (not shown) in which a substantially I-shaped iron plate is laminated, and, as shown in FIG. 1, on both sides of the first bobbin 36 along the axis of the central leg iron core, The side leg iron cores 40 and 40 are arranged by laminating a steel plate, and the center leg iron core and the both side leg iron cores 40 and 40 are respectively clamped and fixed by a fastening metal fitting 41 having a housing shape.
[0031]
Further, a substantially triangular first engaging convex portion 44 protruding outward is formed at the center of the lower end of each of the flange portions 35, 35 formed at both ends of the first bobbin 36. In addition, a plurality of groove-shaped notches 38 through which lead wires of the coil pass are formed in the upper portion of the flange portion 35, and a terminal block 48 is extended outward. A plurality of first terminal fittings 49 are respectively inserted into these terminal blocks 48 and 48.
[0032]
55 is a first end plate having a substantially rectangular shape attached to one end in the longitudinal direction of the first transformer main body 32, and the first end plate 55 is formed from the end plate main body 56 and the lower end of the end plate main body 56. A plate-like placement portion 57 that protrudes inward in a substantially horizontal direction, and a substantially triangular first portion that engages with the first engagement convex portion 44 that is formed at the center of the plate-like placement portion 57. 1 engaging recess 45 and a fitting wall 58 projecting inwardly from the upper part and both side parts of the end plate main body 56.
[0033]
Further, a plurality of second terminal fittings 50 are inserted and protruded from the upper inner side of the end plate main body 56, and lead wire insertion holes 68 are formed to protrude from the upper outer side of the end plate main body 56. An insertion hole base 67 is provided. When a lead wire (not shown) is inserted from the insertion hole 68, the lead wire is contacted and fixed to the second terminal fitting 50.
[0034]
Reference numeral 60 denotes a substantially rectangular second end plate attached to the other end of the first transformer main body 32. The second end plate has substantially the same shape as the first end plate 55. The end plate main body 56 is made of polyester resin or the like. A resin filling opening 61 is formed, and a mounting portion 57 in which a first engagement recess 45 that engages with the first engagement protrusion 44 is formed at the lower end of the end plate main body 56. Further, fitting walls 58 are formed at the upper end and both side ends of the end plate main body 56. Further, a plurality of second terminal fittings 50 are inserted inside the end plate main body 56, and an insertion hole base in which a lead wire insertion hole 68 is formed on the outer side of the end plate main body 56. A portion 67 is provided.
[0035]
2 and 9, the first transformer main body 32 includes a bottom plate 70 having a substantially U-shaped cross section, and a cover 71 fixed to the bottom plate 70 by caulking with a rivet 73 as a fixing member. Are incorporated in a cylindrical case 74 composed of a first end plate 55 and a second end plate 60 which are attached to both end openings.
[0036]
A method for assembling the electromagnetic device 31 will be described.
[0037]
Positioning of the first terminal fittings 49 inserted into both ends of the first transformer main body 32 and the second terminal fittings 50 inserted into the first end plate 55 and the second end plate 60, respectively. As shown in FIG. 3, the first bobbin 36 is provided on the bottom plate 70 side of the first end plate 55 toward the first engaging convex portion 44 formed on both ends of the bottom plate 70 side. The first engagement recess 45 and the first engagement recess 45 provided on the bottom plate 70 side of the second end plate 60 are respectively slid, and the first engagement protrusion 44 and the first engagement recess 45 are respectively slid. Are engaged with each other. As a result, the first terminal fitting 49 projecting outward from the upper ends of both ends of the first bobbin 36, the second terminal fitting 50 provided on the upper side of the first end plate 55, and the second terminal fitting 55 are provided. The second terminal fittings 50 provided on the upper side of the end plate 60 are matched with each other.
[0038]
At this time, if the first engaging concave portion 45 and the first engaging convex portion 44 are formed in a taper shape as shown in FIG. 3, they are inserted and engaged more smoothly.
[0039]
Then, electrical connection between the first terminal fitting 49 and the second terminal fitting 50 is performed by soldering or the like. After that, as shown in FIG. 2, it is placed on the upper surface of the bottom plate 70, covered with a cover 71, and the cover 71 is caulked and fixed to the bottom plate 70 with a plurality of rivets 73.
[0040]
Note that the first terminal fittings 49 mounted on both ends of the first transformer main body 32 and the positioning of the second terminal fittings 50 provided on the first end plate 55 and the second end plate 60, respectively. In FIG. 3, the first transformer main body 32, the first end plate 55, and the second end plate 60 are respectively placed on the upper surface of the bottom plate 70 in advance, and as shown in FIG. A first engagement recess 45 and a first engagement recess 45 provided on the bottom plate side of the first end plate 55 toward the first engagement projection 44 formed outwardly projecting outward from the both end bottom plate sides of the first bobbin 36. The first engagement recesses 45 provided on the bottom plate side of the second end plate 60 may be slid to engage the first engagement protrusions 44 and the first engagement recesses 45 respectively. Thus, after placing the first transformer body 32, the first end plate 55, and the second end plate 60 on the upper surface of the bottom plate 70 in advance, connecting the terminal fittings and soldering, Further positioning is ensured.
[0041]
Further, for the purpose of lowering the temperature rise and reducing noise, the cylindrical case 74 is filled with polyester resin or the like from the opening 61 of the second end plate 60. The filling operation is performed by standing the cylindrical case 74 vertically and filling a polyester resin or the like through the opening 61.
[0042]
With reference to FIG. 5 thru | or FIG. 8, the electromagnetic device which concerns on other embodiment comprised with a some transformer main body is demonstrated. The structure related to the connection between the terminal fitting of the transformer main body and the terminal fitting of the end plate is the same as that described above.
[0043]
Reference numeral 82 denotes a second transformer main body constituting the electromagnetic device 81. The second transformer main body 82 is formed on a coil winding portion 84 around which the coil 83 is wound and at both ends of the coil winding portion 84, respectively. A second bobbin 86 composed of substantially rectangular flange portions 85, 85, and a substantially rectangular insertion hole 37 formed in the center of the second bobbin 86 in the axial center direction, are inserted into the insertion hole 37. A central leg iron core (not shown) in which a substantially I-shaped iron plate is laminated and a substantially U-shaped iron plate are arranged on both sides of the second bobbin 86 along the axis of the central leg iron core. The side leg iron cores 40 and 40, and the central leg iron core 40 and the both side leg iron cores 40 and 40 are respectively clamped and fixed by a fastening metal fitting 41 having a housing shape.
[0044]
Further, on the bottom plate side of the one side flange portion 85 of the second bobbin 86, trapezoidal convex portions 89 and 89 each having an inclined surface 88 expanding outward in the opposite direction are formed. A second engaging recess 87 is formed between the two portions 89.
[0045]
A substantially trapezoidal first engaging convex portion 44 projecting outward is formed at the center of the second flange portion 85 of the second bobbin 86 on the bottom plate side. In addition, a plurality of groove-shaped notches 38 through which lead wires of the coils are passed are formed at the upper portions of the respective flange portions 85, and terminal blocks 48, 48 are respectively extended outward. A plurality of first terminal fittings 49 are inserted into these terminal blocks 48, 48.
[0046]
As shown in FIG. 6, the electrically connected second transformer body 82 includes a bottom plate 91 having a substantially U-shaped cross section and a cover fixed by caulking the bottom plate 91 with a rivet (not shown). 93 is housed in a cylindrical case 94 made up of a first end plate 55 and a second end plate 60 which are attached to both end openings.
[0047]
As shown in FIG. 6, both inclined surfaces 88 of the second engaging recess 87 provided in the second transformer main body 82 of the second end plate 60 are abutted against the inclined surfaces 88 built in the cylindrical case 94. Second engaging projections 92 are formed so as to protrude from the inner surface side of the bottom plate 91 that is in contact with each other.
[0048]
The assembly procedure of the electromagnetic device 81 will be described.
[0049]
First, a pair of second transformer main bodies 82 are placed on the inner surface side of the bottom plate 91 so as to be spaced apart from each other with the second engaging convex portion 92 interposed therebetween so that the second engaging concave portions 87 face each other. . Then, the second transformer main body 82 on the second end plate 60 side is slid to the second engaging convex portion 92 side, and the inclined surface 88 of the second engaging convex portion 92 and the second engaging portion are engaged. The protrusion 92 is engaged. After that, the other second transformer body 82 is moved to the second transformer body 82 side on one side . Thereby, as shown in FIG. 8, the abutting portions 90 formed at the tips of the trapezoidal convex portions 89 are brought into contact with each other, and the first terminal fittings 49 of the second transformer main body 82 are matched with each other.
[0050]
Furthermore, when the first end plate 55 and the second end plate 60 are respectively placed on the inner surface side of the bottom plate 91 and are slid to the second transformer main body 82 side, the first end plate 55 of the first end plate 55 is placed. The engagement recess 45 and the first engagement recess 45 of the second end plate 60 engage with the first engagement protrusion 44 of the second transformer body 82, respectively, and the first end plate 55 and The second terminal fittings 50 of the second end plate 60 and the first terminal fittings 49 of the second transformer body are matched. Then, after the terminal fittings are electrically connected to each other by soldering or the like, the cover 93 is attached so as to cover the second transformer body 82 and the like, and the cover 93 is fastened to the bottom plate 91 with a plurality of rivets (not shown). Fix it.
[0051]
When filling the cylindrical case 94 with a resin such as polyester, the second end plate 60 side is set to the upper side, the cylindrical case 94 is set up vertically, and the opening 61 of the second end plate 60 is provided. Fill with resin.
[0052]
The operation of the above embodiment will be described.
[0053]
A first terminal fitting 49 attached to both ends of the first transformer main body 32, a second terminal fitting 50 attached to the first end plate 55, and a second end fitting attached to the second end plate 60, respectively. The connection position of the second end plate 60 to the terminal fitting 50 is directed toward the first engaging convex portions 44 and 44 formed on the both end bottom plate 70 sides of the first transformer body 32, respectively. When the first engagement recesses 45 formed on the first and second recesses are slid, the first engagement protrusions 44 and the first engagement recesses 45 engage with each other at both ends of the first transformer body 32, respectively. The provided first terminal fitting 49 and the second terminal fitting 50 of the end plates 55 and 60 match. As described above, the first engaging convex portion 44 of the first transformer main body 32 and the first engaging concave portion 45 of the end plates 55 and 60 are engaged, and the positions of the terminal fittings 49 and 50 are determined. The positioning of the terminal fittings is easy and reliable.
[0054]
In addition, even after the terminal fittings 49 and 50 are electrically connected by soldering or the like, the respective components are positioned by the first engagement concave portion 45 and the first engagement convex portion 44. No internal stress is generated at the connection between the metal parts 49 and 50.
[0055]
Similarly, when the cylindrical case 74 is set up vertically and polyester resin or the like is filled in the case 74, the first engagement concave portion 45 and the first engagement convex portion 44 respectively Since the components are positioned and supported, the flow weight of the resin generated when the weight of the transformer main body and the resin are filled is not directly applied between the terminal fittings, and a highly reliable terminal fitting connection structure is obtained.
[0056]
In an electromagnetic device composed of a plurality of transformer bodies, at least at the time of filling, the transformer body 82 located on the upper side is provided with a second engagement recess 87, and the opposed bottom plate 91 is engaged with the second engagement recess 87. If the second engagement convex portion 92 is formed so as to project and the second engagement concave portion 87 of the transformer main body is engaged with the second engagement convex portion 92 of the bottom plate 91 to receive the transformer main body, Positioning between the terminal fittings 49, 49 is easy and reliable, and no internal stress is generated between the terminal fittings even after the terminal fittings between the transformer bodies are electrically connected by soldering or the like.
[0057]
Similarly, when the cylindrical case 74 is set up vertically and polyester resin or the like is filled in the case 74, the upper transformer body is received by the second engaging projection 92 of the bottom plate 91. Since it is supported, the weight of the transformer body and the flow force of the resin generated when the resin is filled are not directly applied between the terminal fittings, and a highly reliable terminal fitting connection structure is obtained.
[0058]
【The invention's effect】
According to the present invention of claim 1 wherein As has been detailed above, the engaging recess of the engagement convex portion in one of opposite end plate and the transformer body are engaged with the engaging portion at the other Since each is provided, positioning of the terminal fittings is easy and reliable. Further, even after the terminal fittings are electrically connected by soldering or the like, the respective components are positioned by the engaging concave portions and the engaging convex portions, so that internal stress does not occur at the connecting portions between the terminal fittings. .
[0059]
According to the second aspect of the present invention, the engaging body projecting outward is provided on the bobbin on either side of the opposing transformer body, and the engaging body that engages with the engaging part faces the transformer body. Since it is formed on the bottom plate that is the mounting part where the transformer is placed, positioning between the terminal fittings of the transformer bodies is easy and reliable, and the terminal fittings of the transformer bodies are electrically connected by soldering etc. Later, no internal stress occurs between the terminal fittings.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an assembled state of a transformer main body and an end plate of an electromagnetic device according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view showing an electromagnetic device according to the embodiment.
FIG. 3 is a perspective view showing a first bobbin and a first end plate in the same embodiment.
FIG. 4 is a perspective view showing a first bobbin in the same embodiment.
FIG. 5 is a perspective view showing an assembled state of transformer bodies and transformer bodies and end plates of an electromagnetic device according to another embodiment of the present invention.
FIG. 6 is a cross-sectional view showing an electromagnetic device according to another embodiment.
FIG. 7 is a perspective view showing a second bobbin according to another embodiment.
FIG. 8 is a perspective view showing an engagement state of a second bobbin with a bottom plate according to another embodiment.
FIG. 9 is a perspective view showing the entire structure of a general electromagnetic device.
FIG. 10 is a cross-sectional view showing a first conventional electromagnetic device.
FIG. 11 is a perspective view showing an assembled state of the transformer main body and the end plate according to the first prior art.
FIG. 12 is a cross-sectional view showing a second conventional electromagnetic device.
FIG. 13 is a perspective view showing an assembled state of a transformer body and an end plate according to a second prior art.
[Explanation of symbols]
32 ... 1st transformer main body, 35 ... Flange part, 36 ... Bobbin, 44 ... 1st engagement convex part, 45 ... 1st engagement recessed part, 48 ... Terminal block, 49 ... 1st terminal metal fitting, 50 2nd terminal fitting, 55 ... 1st end plate, 57 ... Mounting part, 60 ... End plate, 61 ... Opening for resin filling, 70 ... Bottom plate, 71 ... Cover, 73 ... Rivet, 74 ... Cylindrical case , 82 ... Transformer body, 85 ... Flange part, 86 ... Bobbin, 87 ... Engaging concave part (engaging part), 89 ... Trapezoidal convex part, 90 ... Abutting part, 91 ... Bottom plate, 92 ... Engaging convex part (engagement) Joint), 93 ... cover, 94 ... cylindrical case.

Claims

A transformer body composed of a coil and an iron core wound around a bobbin formed with square flange portions at both ends ;
A plurality of first terminal fittings provided to protrude outward from one side of the flange portion ;
A cylindrical case including a bottom plate, a cover fixed to the bottom plate, and end plates attached to both end openings formed by the bottom plate and the cover, wherein the transformer body is mounted on the bottom plate and built therein;
In an electromagnetic device comprising a second terminal fitting mounted on the end plate and electrically connected to the first terminal fitting,
A placement portion placed on the bottom plate is provided on the end plate so as to face the second terminal fitting, and the placement portion and one side of the flange portion to which the first terminal fitting is attached And the other side of the parallel shape are provided with a single engaging convex portion projecting toward the other, and a single engaging concave portion with which the engaging convex portion engages is provided on the other side. Electromagnetic equipment characterized by being provided in .

A first and a second transformer body comprising a coil and an iron core wound around a bobbin having a square flange portion formed at both ends;
A plurality of first terminal fittings provided to protrude outward from one side of one of the flange portions and one side of the other flange portion;
A bottom plate, a cover fixed to the bottom plate, a first end plate attached to one end opening made by the bottom plate and the cover, and a second end opening having a filling opening and made by the bottom plate and the cover A cylindrical case comprising a second end plate formed and having the first and second transformer bodies mounted on the bottom plate;
A second terminal fitting mounted on the first and second end plates and electrically connected to the first terminal fitting protruding from the one flange portion;
It consists of a resin filled in the case from the filling opening,
In the electromagnetic device in which the first terminal fittings protruding from one side of the other flange portion located at the adjacent end portions of the first and second transformer bodies are electrically connected,
A placement portion placed on the bottom plate is provided on the end plate so as to face the second terminal fitting, and the placement portion and one of the flange portions to which the first terminal fitting is attached. A single engaging protrusion that protrudes toward the other is provided on either one of the side and the parallel other side, and a single engaging recess that engages with the engaging protrusion Provided on the other side,
The other side parallel to one side of one flange portion located at the end portion on the first transformer body side of the second transformer body closer to the second end plate having the opening for filling. An electromagnetic device characterized in that an engaging portion protruding outward is provided on a side, and another engaging portion for receiving the engaging portion is provided on the bottom plate .