JP3681224B2 - Housing structure of electrical equipment - Google Patents

Housing structure of electrical equipment Download PDF

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Publication number
JP3681224B2
JP3681224B2 JP18428396A JP18428396A JP3681224B2 JP 3681224 B2 JP3681224 B2 JP 3681224B2 JP 18428396 A JP18428396 A JP 18428396A JP 18428396 A JP18428396 A JP 18428396A JP 3681224 B2 JP3681224 B2 JP 3681224B2
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case
engaging
engagement
printed circuit
holding
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JPH1013046A (en
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和夫 三瓶
守人 安濃
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Hitachi Communication Technologies Ltd
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Hitachi Communication Technologies Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、電話機やファクシミリ等のように電話回線を使用して情報通信を行う電気機器装置又はその他の電気機器装置の筐体構造関するものである。
【0002】
【従来の技術】
従来、電話回線を利用して情報通信を行う通信端末装置等の電気機器においては、図14に示すように筐体構造は板金等から成り、複数のボスcを有する上部ケースaとL字形の下部ケースbの内部にプリント回路板dを収容固定し、プリント回路板dの前部には液晶表示器fと電鍵gとLED(発光素子)hが搭載してある。
【0003】
【発明が解決しようとする課題】
しかしながら、上記従来の電気機器の筐体構造にあっては、上部ケースaが板金構造であるために、製造上多くの工数を要し、また、組立にあたっては下部ケースbを上部ケースaの複数のボスcに多くのねじiを用いて固定するため、組立ての作業性が悪いなどの問題点があった。
【0004】
本発明は、上記の問題点に着目してなされたものであって、その的とするところは、従来の筐体構造に比べてねじの使用が無くなり、簡単に電気機器を組立てることができ、組立作業性を向上させることができばかりか、ケース同士の固定が強固なり、組立が容易になる電気機器装置の筐体構造を提供することにある。
【0006】
【課題を解決するための手段】
上記の的を達成するために、請求項1の発明に係わる電気機器装置の筐体構造は、ケース本体の、他方のケースの押込み方向に直交する両側面部の内側に方のケースを保持する保持部を、この他方のケースの押込み方向に複数設け、これらの保持部の記押込み方向とは反対側の後端部のものをコ字形突部とし、当該コ字形突部の下面に端部からなる段差によって第1係合部を形成し且つ当該コ字形突部の後部を後方に突出させて第2係合部を形成した一方のケースと、一方のケースの前記第1係合部に係脱可能に係合する底面部に設けた上方に傾斜した板状の弾性片部から成る第3係合部と、一方のケースの前記押込み方向に向かって最前の保持部に掛けられる引っ掛け部と、一方のケースの前記係合部に係脱可能に係合する後面部に設けた切欠きから成る第4係合部とを有する他方のケースとを備え、前記引っ掛け部を前記保持部に掛けて一方のケース側に回動してこの一方のケースに重ねて押し込むことにより、前記第1係合部の段差に前記第3係合部を収容させて当該第1係合部の前記コ字形突部の前記端部に前記第3係合部の弾性片の端部を係合し且つ前記第2係合部に前記第4係合部の切欠きを係合することで前記一方のケースと前記他方のケースとを固定したことを特徴とする。
【0007】
かかる構成により、従来の筐体構造に比べてねじの使用が無くなり、簡単に電気機器を組立てることができ、組立作業性を向上させることができる一方、他方のケースと一方のケースの係合部を設けることにより固定が強固になるばかりか、組立が容易になり、簡単に電気機器を組立てることができ、装組立作業性を向上させることができる。
【0009】
また、かかる構成により、他方のケースに設けた第3係合部の溝にねじ回しの先端を挿入、倒すことで、前記弾性片部の部が一方のケースの係合部の最下部より下方に位置した時点で他方のケースを引き抜くことで、この他方のケースの取外しが可能になり、筐体の組立、分解作業性を向上させることができる。
【0010】
また、上記の的を達成するために、請求項の発明に係わる電気機器装置の筐体構造前記他方のケースの前記第3係合部を形成する板状の弾性片部を、両側に溝を設けて構成し、前記溝の片側に治具を挿入して倒すことで、前記第1係合部の段差に収容された前記第3係合部の前記弾性片部の端部を、前記第1係合部の前記コ字形突部の前記端部の下面により下側に位置させ、前記他方のケースを前記一方のケースから取外し可能としたことを特徴とする。
【0012】
【発明の実施の形態】
以下、本発明の実施の形態例を図面(図1乃至図13)を参照して説明する。図1は本発明の実施例の形態例に係わる筐体構造を備えた電気機器装置の正面側から見た斜視図、図2は同電気機器装置の後面から見た斜視図、図3は同電気機器装置の分解斜視図である。なお、図3において、X−X´方向が前後方向(下部ケースの押込み方向及びこの押込み方向とは反対方向)であり、Y−Y´方向が左右方向である。
【0013】
本発明に係わる筐体構造を備えた電気機器装置は、一方のケースである合成樹脂製の上部ケース1と、他方のケースである金属製の下部ケース2と、表示パネル3と、押しボタンユニット4と、プリント回路板5、6とで構成されている。
【0014】
前記上部ケース1は、図4に示すように上面部1Aと左、右側面部1B、1Cと前面部1Dとを有し且つ後面部が欠如したケース本体を備えており、このケース本体の左側面部1Bには放熱孔1aが形成してあり、また、左、右側面部1B、1Cの内面部には、前後に位置させて保持部であるプリント回路板保持部20、21、22、23が上部ケース1と一体に突設されている。
【0015】
前部下側のプリント回路板保持部20は、上下のコ字形突部1e,1fを背中合わせにしてコ字形突部1e、1f間にガイド溝1wを形成し且つ下側のコ字形突部1fと左、右側面部1B、1Cの内面部との間に挿入溝1gを形成したものであり、また、前部上側のプリント回路板保持部21は、上下のコ字形突部1e、1fを背中合わせにしてコ字形突部1e、1f間にガイド溝1wと前部を塞ぐスロッパ部1pを形成したものである。
【0016】
また、後部上側のプリント回路板保持部22は、上下のコ字形突部1e、1fを背中合わせにしてコ字形突部1e、1f間にガイド溝1wを形成したものであり、また、後部下側のプリント回路板保持部23は、上下のコ字形突部1e、1fを背中合わせにしてコ字形突部1e、1f間にガイド溝1wを形成し、さらに、上側のコ字形突部1eに対して下側のコ字形突部1fの後部を後方に突出させて、この突出部分を第2係合部(他方の上部ケース側係合部)としての係合部24になし、前記ガイド溝1wの前部にプリント回路板5の切欠き5aと係合する突部1mを形成したものである。また、プリント回路板保持部21、22はコ字形突部1eの上部と上部ケース1の上面部1Aの内面との間には隙間1xが設けてある。
【0017】
そして、後部下側のプリント回路板保持部23には、図4に示すように第1係合部(一方の上部ケース側係合部)である係合部29が形成してある。この係合部29は、前記プリント回路板保持部23の下側のコ字形突部1fの下面に、端部1nから成る段差1kが構成してある。また、左、右側面部1B,1Cの内面部には、中央付近にリブ1hが形成してあり、これらの縦リブ1hの下端部にはリブ1vと隙間1jが形成してある。
【0018】
前記上部ケース1の前面部1Dには、押ボタンユニット4を収容固定する押ボタンユニット収容部25と、液晶表示器7の両側に設けた段差7aを収容する縦リブ1iと、長方形の開口部1sが設けてある。
【0019】
押ボタンユニット収容部25は、押ボタンユニット4の押ボタン4aを収容する複数の孔1qと、突部4bを収容する複数の孔1dと、プリント回路板5に搭載したLED8の光を透過する複数の孔1cがそれぞれ設けてある。
【0020】
前記上部ケース2は、図5に示すように電気機器における静電気やノイズ等をシールドする目的から板金等の導体で一体形成されており、底面部2Aと後面部2Bとを有し、底面部2Aには放熱孔2nが形成してある。
【0021】
また、底面部2Aの両側には上部ケース1の隙間1g、1jと係合するリブ2eが形成してあり、リブ2eの前部には引っ掛け部27が形成してあり、この引っ掛け部27は切欠き2Cを有するL字形突部2bより成る。前記リブ2eの後端部が欠如していて平坦部2jにしてあり、リブ2eの後端部がストッパ分2dに成されている。また、前記底面部2Aの前縁部にはリブ2mが形成されており、リブ2mの一部には液晶表示器7の下部を固定するL字形の曲げ部2aが設けてある。
【0022】
また、前記下部のケース2の底面部2Aの後部で、その両端部には上部ケース1の係合部29と係合する第3係合部(一方の下部ケース側係合部)である係合部28が設けてあり、この係合部28には溝2l、2pから成る上方に傾斜した板状の弾性片2rが設けてある。この係合部28の溝2l、2pの片側に治具であるねじ回し33の先端33aを挿入して倒すことで押下げ手段を構成している。
【0023】
前記下部のケース2の後面部2BにはV字状の切欠き部2hと孔2gと複数の開口部2iと前記リブ2eの後端部のストッパ部2dに対向した第4係合部(他方の下部ケース側係合部)として切欠き2fとが形成してある。
【0024】
前記表示パネル3は、図3に示すように押ボタンユニット4の押ボタン4aを収容する孔3bと、プリント回路板5に搭載するLED8の光を透過する複数の透明部3aが設けてあり、この透明部3aには光を拡散する拡散処理が施されている。
【0025】
前記押ボタンユニット4は、図7に示すように長方形状のケース本体4Aを備えており、このケース本体4Aの前面部には左、右に位置させて前記上部ケース1の孔1dと係合する突部4bが突設してあり、また、ケース本体4Aの上面部には左、右に位置させて前記上部ケース1のへこみ1bと係合する突部4cが設けてある。
【0026】
また、ケース本体4Aの前面側には複数の押ボタン4aが左、右に並べて配置してあり、これらの押ボタン4aはバネ性を有する押ボタン連結片4dを介してケース本体4Aに取付けてあり、押ボタン4aの下側にはストッパ部4hが設けてある。また、押ボタン4の背面部の下側には電鍵9の先端9aと接触する台4gが形成してある。また、前記ケース本体4A内の下側には複数の溝4iを有する横リブ4jが設けてあり、また、ほぼ中央付近には柱4eが設けてあり、ケース本体4Aと柱4eの下部にはプリント回路板5の前端部5cを収容する溝4fが設けてある。
【0027】
前記プリント回路板5は、図6に示すようにプリント配線板より構成されていて、その配線板本体5Aの上面には液晶表示器7に接続しているケーブル7bと、ケーブル17を接続するコネクタ13a、13bが実装されている。配線板本体5Aの面部の前端部5Cには先端9aを有する電鍵9と、LED8が設けてある。また、前記配線板本体5Aの後縁部には、インターフェースを構成するコネクタ14、15、16と、ネジ孔10aを有するホルダー10が設けてあり、このホルダー10にはケーブルホルダー11aで固定したケーブル11と、電源スイッチ12が搭載してある。また、配線板本体5Aの両側の前端部には面取り部5bが、後部には切欠き部5aがそれぞれ形成してある。
【0028】
前記プリント回路板6はプリント配線板より成り、この配線板本体6Aの下面の側部にはケーブル17を接続するコネクター13Cが搭載してある。また、配線板本体6Aの両側の前端部には面取り部6aが形成してある。
【0029】
次に、上記のように構成された電気機器の組立て動作を説明する。
まず、上部ケース1の前部外側に表示パネル3を貼り付け固定する。次に押ボタンユニット4を上部ケース1の前面部1Dの内側に収容し、上部ケース1のへこみ1b、孔1dと、押ボタンユニット4の突部4b,4cをそれぞれ係合する。ここで、上部ケースの孔1dと押ボタンユニット4の突部4bとの係合は押ボタンユニット4の上下方向を固定し、一方、上部ケース1のへこみ1bと押ボタンユニット4の突部4cの係合は押ボタンユニット4の上部の水平方向を固定している。
【0030】
次に、プリント回路板5、6を、それぞれに搭載してあるコネクター13b、13cに接続ケーブル17を挿入して互いに電気的に接続する。一方、液晶表示器7に接続された接続ケーブル7bの先端をプリント回路板5に搭載されたコネクタ13aに挿入して電気的に接続する。
【0031】
次に、上記のように液晶表示器7と、接続ケーブル17を介して、電気的に接続したプリント回路板5、6を、上部ケース1の左、右側面部1B、1Cに設けたプリント回路板5、6を上部ケース1の左、右側面部1B、1Cに設けたプリント回路板保持部22、23のガイド溝1wに、プリント回路板5、6の左、右側縁部を挿入し、このプリント回路板5、6を、上部ケース1の背面から前方に移動させ、プリント回路板5、6の左、右側縁部を前側部のプリント回路板保持部20、21のガイド溝1wに順次挿入して、後側部のプリント回路板23の突部1mに、プリント回路板5の後部に設けた切欠き5aを係合してプリント回路板5を上部ケース1に固定する。
【0032】
一方、プリント回路板6を収容し、プリント回路板6の後端部6bを、プリント回路板5の後縁部に搭載したホルダー10の端部10bで押さえることで、プリント回路板6の水平方向を固定している。
【0033】
ここで、プリント回路板5、6の前部へ面取り部5b、6aと、プリント回路板保持部20、21、22、23のガイド溝1wの入口部分の丸味1zは、プリント回路板5、6を挿入する際の作業性を容易にしている。
【0034】
一方、液晶表示器7の上部を上部ケース1の前面部1Dの内面と突部1lとの間に係合することで液晶表示器7の上部の水平方向を押さえ、液晶表示器7の両側に設けた段差7aを上部ケース1の前面部1Dの縦リブ1iの内側に収容することで液晶表示器7の左、右方向の動きを押さえている。
【0035】
次に、前記上部ケース1と下部ケース2の固定を説明する。
まず、上部ケース1を反転させてその上面部1Aを下にした状態で、上部ケース1の前部のプリント回路板保持部20の下側に下部ケース2のL字形突部2bを挿入して係合し、この上部ケース2を前部のプリント回路板保持部20の部分を支点にして上部ケース1側に倒して下部ケース2を上部ケース1に重ねて、下部ケース2の左、右のリブ2eを上部ケース1の隙間1g、1jに係合させる。
【0036】
次に、この下部ケース2を前方に押し込むことにより、図8に示すように上部ケース1のプリント回路板保持部23の下面に設けた端部1nから成る段差1kに、下部ケース2の後部の両側部に設けた弾性片2rを収容させて、上部ケース1の端部1nに下部ケース2の弾性片2rの端部2jが係合する。
【0037】
さらに、下部ケース2の後面部2Bの端部2Kを、上部ケース1の後面中央付近の係合部26の傾斜面1uに摺接させてこの端部2kを溝1tに係合する。この時、下部ケース2の切欠き2fに上部ケース1の後部下側プリント回路板保持部23の下側のコ字形突部1fの後端部である係合部24が係合する。
【0038】
尚、前部でのプリント回路板保持部20とL字形突部2bとの係合と、後部の切欠き2fへの係合部24の係合は上部ケース1と下部ケース2の上下方向を固定し、上部ケース1の後部下側のプリント回路板保持部23の下面に設けた係合部29の段差1kと下部ケース2の弾性片部2rの係合と、後部中央付近の係合、すなわち、下部ケース2の後面部2Bの端部2kの上部ケース1への係合部26は水平方向を固定している。
【0039】
また、上記したように下部ケース2は下部ケース1の取付位置に下方より図8及び図9に示すように矢印(イ)方向へ載置し、矢印(ロ)方向へスライドするため上部ケース1の段差1kに下部ケース2の弾性片部2rが収容され、上部ケース1の端部1nに下部ケース2の弾性片部2rの端部2jが係合する。ここで、下部ケース2の弾性片部2rの傾斜面は、上部ケース1の段差1kと下部ケース2の弾性片部2rとの係合を容易にしている。
【0040】
また、以上の説明においては、上部ケース1の保持部としてのプリント回路板保持部20、23が、プリント回路板5を案内し、且つ保持する作用と、下部ケース2を係合させる作用(「下部ケース係合部」としての作用)とを成しており、これによって、下部ケース2を成形するモールド型が容易に作成可能な構造としている。
【0041】
しかしながら、これらの作用を共有させる必要はなく、実施態様によっては、プリント回路板保持部20、23と下部ケース係合部とを別々に設けることができる。すなわち、上部ケース1の左、右側面部1B、1Cの内面部の少し上方に、プリント回路板5の保持用に用いられるプリント回路板保持部を形成してもよい。この場合、その形状はプリント回路板保持部20、23と同様にすればよいことは明らかである。
【0042】
さらに、前記下部ケース2の上部ケース1からの取外しは、図10および図11に示すように下部ケース2の後部の両側部に設けた係合部28の溝2l,2pの片側にねじ回し33の先端33aを挿入して、矢印(ホ)方向へ倒すことで、下部ケース2の係合部28が矢印(ハ)方向に移動し、下部ケース2の弾性片部2rの端部2jが上部ケース1の係合部28の端部1nの下面より下側に位置した時点で下部ケース2を矢印(ニ)方向へ引き抜くことで下部ケース2の取外しを可能としている。
【0043】
最後に、ネジ32を下部ケース2の孔2gを通して、プリント回路板5のホルダー10のねじ孔10aに螺挿することにより組立が完了する。この組立が完了した状態の電気機器装置を図1及び図2に示す。尚、ねじ32は下部ケース2と、プリント回路板5のアースをホルダー10を介して電気的に導通させることを目的としている。
【0044】
【発明の効果】
以上説明したように、発明に係わる電気機器装置の筐体構造によれば、ケース本体、他方のケースの押込み方向に直交する両側面部の内側に方のケースを保持する保持部を、この他方のケースの押込み方向に複数設け、これらの保持部の記押込み方向とは反対側の後端部のものをコ字形突部とし、当該コ字形突部の下面に端部からなる段差によって第1係合部を形成し且つ当該コ字形突部の後部を後方に突出させて第2係合部を形成した一方のケースと、一方のケースの前記第1係合部に係脱可能に係合する底面部に設けた上方に傾斜した板状の弾性片部から成る第3係合部と、一方のケースの前記押込み方向に向かって最前の保持部に掛けられる引っ掛け部と、一方のケースの前記係合部に係脱可能に係合する後面部に設けた切欠きから成る第4係合部とを有する他方のケースとを備え、前記引っ掛け部を前記保持部に掛けて一方のケース側に回動してこの一方のケースに重ねて押し込むことにより、前記第1係合部の段差に前記第3係合部を収容させて当該第1係合部の前記コ字形突部の前記端部に前記第3係合部の弾性片の端部を係合し且つ前記第2係合部に前記第4係合部の切欠きを係合することで前記一方のケースと前記他方のケースとを固定したことにより、従来の筐体構造に比べてねじの使用が無くなり、簡単に電気機器を組立てることができ、組立作業性を向上させることができる一方、他方のケースと一方のケースの係合部を設けることにより固定が強固になるばかりか、組立が容易になり、簡単に電気機器を組立てることができ、装組立作業性を向上させることができる。
【図面の簡単な説明】
【図1】本発明の実施の形態例に係わる筐体構造を備えた電気機器装置の正面側から見た斜視図である。
【図2】同電気機器装置の後面から見た斜視図である。
【図3】同電気機器装置の分解斜視図である。
【図4】上部ケースの斜視図である。
【図5】下部ケースの斜視図である。
【図6】プリント回路板の斜視図である。
【図7】押ボタンユニットの斜視図である。
【図8】上部ケースと下部ケースの係合状態に示す斜視図である。
【図9】同部分詳細図である。
【図10】上部ケースと下部ケースの取外し操作状態を示す斜視図である。
【図11】同部分詳細図である。
【図12】押ボタンユニットとプリント回路板の係合状態を示す斜視図である。
【図13】液晶表示器の固定状態を示す斜視図である。
【図14】従来の電気機器装置の筐体構造の分解斜視図である。
【符号の説明】
1 上部ケース(一方のケース)
1k 段差
1n 端部
2 下部ケース(他方のケース)
2l 溝
2p 溝
2j 端部
2r 弾性片部
2f 切欠き(第4係合部)
24 係合部(第2係合部)
28 係合部(第3係合部)
29 係合部(第1係合部)
33 ねじ回し(治具、押下げ手段)
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a housing structure for an electric equipment devices or other electrical equipment device for performing information communication by using a telephone line as such telephone or facsimile.
[0002]
[Prior art]
Conventionally, in an electrical device such as a communication terminal device that performs information communication using a telephone line, the housing structure is made of sheet metal as shown in FIG. 14, and an upper case a having a plurality of bosses c and an L-shaped A printed circuit board d is accommodated and fixed inside the lower case b, and a liquid crystal display f, an electric key g, and an LED (light emitting element) h are mounted on the front part of the printed circuit board d.
[0003]
[Problems to be solved by the invention]
However, since the upper case a has a sheet metal structure in the above-described conventional housing structure of an electric device, a lot of man-hours are required for manufacturing, and when assembling, the lower case b is replaced with a plurality of upper cases a. Since there are many screws i fixed to the boss c, there are problems such as poor assembling workability.
[0004]
The present invention was made in view of the above-described problems, and its purpose, eliminates the use of screws as compared with the conventional housing structure, it can easily assemble the electrical equipment , not only Ru can improve assembling workability, of the case between the fixed becomes strong, is to provide a housing structure of the assembly is facilitated electrical equipment device.
[0006]
[Means for Solving the Problems]
To achieve the above purpose, the housing structure of the electrical equipment device according to a first aspect of the invention, the case body, the other side on the inner side of both side surfaces orthogonal to the press and inclusive direction of the other Case Case a holding portion for holding the provided plurality of push and inclusive direction of this other case, those of the rear end portion of the opposite side is U-shaped projection and the front Ki押and inclusive direction of these holding portions, the co One case in which a first engagement portion is formed by a step formed by an end on the lower surface of the U-shaped projection, and a rear portion of the U-shaped projection protrudes rearward to form a second engagement portion; and one case a third engaging portion consisting of a plate-like elastic piece portion inclined upwardly provided on the bottom surface to detachably engage said first engaging portion of, toward the press and inclusive direction of one of the case a hook portion that is hooked on the holding portion of the foremost Te, detachably engaged with the second engagement portion of one of the case And a second case which have a fourth engaging portion consisting of notches provided in the rear surface portion that, the hook portion pivots on one of the case-side over the holding portion to the one of the case By pushing in repeatedly, the third engagement portion is accommodated in the step of the first engagement portion, and the elasticity of the third engagement portion is received at the end of the U-shaped protrusion of the first engagement portion. engaging the end piece, and, characterized in that fixed to said one case and the other case by engaging the notch of the fourth engagement portion to the second engagement portion And
[0007]
With this configuration, the use of screws is eliminated compared to the conventional housing structure, and it is possible to easily assemble electrical equipment and improve the assembly workability, while the other case and the engaging portion of one case As a result, the fixing becomes strong, the assembly becomes easy, the electric device can be easily assembled, and the assembling workability can be improved.
[0009]
In addition, with this configuration, the end of the elastic piece can be moved from the lowermost part of the engaging portion of one case by inserting and tilting the tip of the screwdriver into the groove of the third engaging portion provided in the other case. By pulling out the other case when it is positioned below, the other case can be removed, and the assembly and disassembly workability of the housing can be improved.
[0010]
Further, in order to achieve the above purpose, the housing structure of the electrical equipment device according to a second aspect of the invention, the plate-like elastic pieces forming the third engagement portion of the other case, An end portion of the elastic piece portion of the third engagement portion accommodated in a step of the first engagement portion by providing a groove on both sides and inserting and tilting a jig on one side of the groove Is positioned below the lower surface of the end portion of the U-shaped protrusion of the first engagement portion, and the other case can be removed from the one case .
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings (FIGS. 1 to 13). FIG. 1 is a perspective view seen from the front side of an electrical equipment apparatus having a housing structure according to an embodiment of the present invention, FIG. 2 is a perspective view seen from the rear side of the electrical equipment apparatus, and FIG. It is a disassembled perspective view of an electric equipment apparatus. In FIG. 3, the XX ′ direction is the front-rear direction (the pushing direction of the lower case and the direction opposite to the pushing direction), and the YY ′ direction is the left-right direction.
[0013]
An electrical apparatus apparatus having a housing structure according to the present invention includes an upper case 1 made of synthetic resin as one case, a lower case 2 made of metal as the other case, a display panel 3, and a push button unit. 4 and printed circuit boards 5 and 6.
[0014]
As shown in FIG. 4, the upper case 1 includes a case main body having an upper surface portion 1A, left and right side surfaces 1B and 1C, and a front surface portion 1D, and lacking a rear surface portion. 1B is formed with a heat radiating hole 1a, and printed circuit board holding parts 20, 21, 22, and 23, which are holding parts positioned on the front and back, are provided on the inner surfaces of the left and right side parts 1B and 1C. Projecting integrally with the case 1.
[0015]
The printed circuit board holding part 20 on the lower side of the front part forms a guide groove 1w between the upper and lower U-shaped protrusions 1e and 1f back to back, and forms a guide groove 1w between the lower U-shaped protrusions 1f and 1f. An insertion groove 1g is formed between the left and right side surface portions 1B and 1C, and the printed circuit board holding portion 21 on the upper front side has the upper and lower U-shaped protrusions 1e and 1f back to back. The guide groove 1w and the slipper portion 1p for closing the front portion are formed between the U-shaped protrusions 1e and 1f.
[0016]
The printed circuit board holding part 22 on the upper rear side is formed by forming a guide groove 1w between the upper and lower U-shaped protrusions 1e and 1f back to back, and between the U-shaped protrusions 1e and 1f. The printed circuit board holding part 23 forms a guide groove 1w between the U-shaped protrusions 1e, 1f with the upper and lower U-shaped protrusions 1e, 1f back to back, and further to the upper U-shaped protrusion 1e. The rear portion of the lower U-shaped projecting portion 1f is projected rearward, and this projecting portion is formed as an engaging portion 24 as a second engaging portion (the other upper case side engaging portion), and the guide groove 1w A protrusion 1m that engages with the notch 5a of the printed circuit board 5 is formed at the front. The printed circuit board holding portions 21 and 22 have a gap 1x between the upper portion of the U-shaped protrusion 1e and the inner surface of the upper surface portion 1A of the upper case 1.
[0017]
Further, as shown in FIG. 4, an engagement portion 29 that is a first engagement portion (one upper case side engagement portion) is formed in the printed circuit board holding portion 23 on the lower rear side. The engaging portion 29 is formed with a step 1k including an end 1n on the lower surface of the U-shaped protrusion 1f on the lower side of the printed circuit board holding portion 23. Further, ribs 1h are formed near the center on the inner surfaces of the left and right side surfaces 1B and 1C, and ribs 1v and gaps 1j are formed at the lower ends of these vertical ribs 1h.
[0018]
The front case portion 1D of the upper case 1 has a push button unit housing portion 25 for housing and fixing the push button unit 4, vertical ribs 1i for housing steps 7a provided on both sides of the liquid crystal display 7, and a rectangular opening. 1s is provided.
[0019]
The push button unit housing portion 25 transmits light from the LEDs 8 mounted on the printed circuit board 5 and the plurality of holes 1q for housing the push buttons 4a of the push button unit 4, the plurality of holes 1d for housing the protrusions 4b. A plurality of holes 1c are provided.
[0020]
As shown in FIG. 5, the upper case 2 is integrally formed with a conductor such as a sheet metal for the purpose of shielding static electricity, noise, etc. in an electric device, and has a bottom surface portion 2A and a rear surface portion 2B. 2 is formed with a heat radiating hole 2n.
[0021]
Further, ribs 2e that engage with the gaps 1g and 1j of the upper case 1 are formed on both sides of the bottom surface portion 2A, and a hook portion 27 is formed at the front portion of the rib 2e. It consists of an L-shaped protrusion 2b having a notch 2C. The rear end of the rib 2e is absent and is a flat portion 2j, and the rear end of the rib 2e is formed as a stopper portion 2d. A rib 2m is formed at the front edge of the bottom surface 2A, and an L-shaped bent portion 2a for fixing the lower portion of the liquid crystal display 7 is provided at a part of the rib 2m.
[0022]
Further, at the rear portion of the bottom surface portion 2A of the lower case 2, the both ends thereof are third engaging portions (one lower case side engaging portion) that engage with the engaging portion 29 of the upper case 1. A mating portion 28 is provided, and the engaging portion 28 is provided with a plate-like elastic piece 2r that is inclined upward and includes grooves 2l and 2p. A push-down means is configured by inserting a tip 33a of a screwdriver 33, which is a jig, into one side of the grooves 2l and 2p of the engaging portion 28 and tilting it.
[0023]
A rear surface portion 2B of the lower case 2 has a V-shaped cutout portion 2h, a hole 2g, a plurality of openings 2i, and a fourth engagement portion (the other side) opposed to the stopper portion 2d at the rear end portion of the rib 2e. The lower case side engaging portion) is formed with a notch 2f.
[0024]
As shown in FIG. 3, the display panel 3 includes a hole 3 b that accommodates the push button 4 a of the push button unit 4, and a plurality of transparent portions 3 a that transmit light from the LEDs 8 mounted on the printed circuit board 5. The transparent portion 3a is subjected to a diffusion process for diffusing light.
[0025]
As shown in FIG. 7, the push button unit 4 includes a rectangular case body 4A. The case body 4A is positioned on the front side of the case body 4A on the left and right sides, and engages with the hole 1d of the upper case 1. A protrusion 4b that protrudes from the upper case 1 is provided on the upper surface of the case main body 4A so as to engage with the recess 1b of the upper case 1.
[0026]
In addition, a plurality of push buttons 4a are arranged on the front side of the case body 4A on the left and right, and these push buttons 4a are attached to the case body 4A via a push button connecting piece 4d having a spring property. There is a stopper portion 4h below the push button 4a. A base 4g that contacts the tip 9a of the electric key 9 is formed below the back surface of the push button 4. Further, a lateral rib 4j having a plurality of grooves 4i is provided on the lower side in the case body 4A, and a column 4e is provided in the vicinity of the center, and the case body 4A and the lower part of the column 4e are provided. A groove 4f for receiving the front end 5c of the printed circuit board 5 is provided.
[0027]
The printed circuit board 5 is composed of a printed wiring board as shown in FIG. 6, and a cable 7b connected to the liquid crystal display 7 and a connector for connecting the cable 17 are provided on the upper surface of the wiring board body 5A. 13a and 13b are mounted. An electric key 9 having a tip 9a and an LED 8 are provided on the front end 5C of the surface of the wiring board body 5A. Further, a connector 10, 15, 16 constituting an interface and a holder 10 having a screw hole 10 a are provided at the rear edge of the wiring board body 5 A, and a cable fixed by a cable holder 11 a is provided in the holder 10. 11 and a power switch 12 are mounted. Further, a chamfered portion 5b is formed at the front end portion on both sides of the wiring board main body 5A, and a notch portion 5a is formed at the rear portion.
[0028]
The printed circuit board 6 is formed of a printed wiring board, and a connector 13C for connecting a cable 17 is mounted on the side of the lower surface of the wiring board body 6A. Further, chamfered portions 6a are formed at the front end portions on both sides of the wiring board main body 6A.
[0029]
Next, an assembling operation of the electric device configured as described above will be described.
First, the display panel 3 is pasted and fixed to the outside of the front part of the upper case 1. Next, the push button unit 4 is housed inside the front surface portion 1D of the upper case 1, and the dent 1b and the hole 1d of the upper case 1 are engaged with the protrusions 4b and 4c of the push button unit 4, respectively. Here, the engagement between the hole 1d of the upper case and the projection 4b of the push button unit 4 fixes the vertical direction of the push button unit 4, while the recess 1b of the upper case 1 and the projection 4c of the push button unit 4 are fixed. Is fixed in the horizontal direction of the upper portion of the push button unit 4.
[0030]
Next, the printed circuit boards 5 and 6 are electrically connected to each other by inserting the connection cable 17 into the connectors 13b and 13c respectively mounted thereon. On the other hand, the end of the connection cable 7b connected to the liquid crystal display 7 is inserted into the connector 13a mounted on the printed circuit board 5 to be electrically connected.
[0031]
Next, the printed circuit boards 5 and 6 electrically connected via the connection cable 17 and the liquid crystal display 7 as described above are provided on the left and right side portions 1B and 1C of the upper case 1. 5 and 6 are inserted into the guide grooves 1w of the printed circuit board holding parts 22 and 23 provided on the left and right side parts 1B and 1C of the upper case 1, and the left and right edges of the printed circuit boards 5 and 6 are inserted into the printed circuit board holding parts 22 and 23. The circuit boards 5 and 6 are moved forward from the back surface of the upper case 1, and the left and right edges of the printed circuit boards 5 and 6 are sequentially inserted into the guide grooves 1w of the printed circuit board holding parts 20 and 21 on the front side. The printed circuit board 5 is fixed to the upper case 1 by engaging the notch 5 a provided in the rear part of the printed circuit board 5 with the protrusion 1 m of the printed circuit board 23 on the rear side.
[0032]
On the other hand, the printed circuit board 6 is accommodated, and the rear end 6b of the printed circuit board 6 is pressed by the end 10b of the holder 10 mounted on the rear edge of the printed circuit board 5, so that the horizontal direction of the printed circuit board 6 is achieved. Is fixed.
[0033]
Here, the roundness 1z of the chamfered portions 5b and 6a to the front portions of the printed circuit boards 5 and 6 and the guide groove 1w of the printed circuit board holding portions 20, 21, 22, and 23 is the printed circuit boards 5 and 6 The workability when inserting is made easy.
[0034]
On the other hand, by engaging the upper part of the liquid crystal display 7 between the inner surface of the front surface portion 1D of the upper case 1 and the protrusion 11, the horizontal direction of the upper part of the liquid crystal display 7 is suppressed, By accommodating the provided step 7 a inside the vertical rib 1 i of the front surface portion 1 </ b> D of the upper case 1, the left and right movements of the liquid crystal display 7 are suppressed.
[0035]
Next, fixing of the upper case 1 and the lower case 2 will be described.
First, with the upper case 1 turned upside down and the upper surface portion 1A turned down, the L-shaped protrusion 2b of the lower case 2 is inserted below the printed circuit board holding portion 20 at the front of the upper case 1. The upper case 2 is tilted to the upper case 1 side with the printed circuit board holding part 20 at the front as a fulcrum, and the lower case 2 is overlapped with the upper case 1. The rib 2e is engaged with the gaps 1g and 1j of the upper case 1.
[0036]
Next, by pushing the lower case 2 forward, as shown in FIG. 8, a step 1k formed of an end 1n provided on the lower surface of the printed circuit board holding portion 23 of the upper case 1 is placed on the rear portion of the lower case 2. The elastic pieces 2r provided on both side portions are accommodated, and the end portions 2j of the elastic pieces 2r of the lower case 2 are engaged with the end portions 1n of the upper case 1.
[0037]
Further, the end portion 2K of the rear surface portion 2B of the lower case 2 is slidably brought into contact with the inclined surface 1u of the engaging portion 26 near the center of the rear surface of the upper case 1, and the end portion 2k is engaged with the groove 1t. At this time, the engaging portion 24, which is the rear end portion of the lower U-shaped protrusion 1 f of the upper case 1, is engaged with the notch 2 f of the lower case 2.
[0038]
In addition, the engagement of the printed circuit board holding part 20 and the L-shaped protrusion 2b at the front part and the engagement of the engaging part 24 with the rear notch 2f are performed in the vertical direction of the upper case 1 and the lower case 2. Fixing, engaging the step 1k of the engaging portion 29 provided on the lower surface of the printed circuit board holding portion 23 on the lower rear side of the upper case 1 and the elastic piece 2r of the lower case 2; That is, the engaging portion 26 of the end 2k of the rear surface 2B of the lower case 2 to the upper case 1 is fixed in the horizontal direction.
[0039]
Further, as described above, the lower case 2 is placed at the mounting position of the lower case 1 from below as shown in FIGS. 8 and 9 and slides in the direction of the arrow (b) as shown in FIGS. The elastic piece 2r of the lower case 2 is accommodated in the step 1k, and the end 2j of the elastic piece 2r of the lower case 2 is engaged with the end 1n of the upper case 1. Here, the inclined surface of the elastic piece 2r of the lower case 2 facilitates the engagement between the step 1k of the upper case 1 and the elastic piece 2r of the lower case 2.
[0040]
In the above description, the printed circuit board holding portions 20 and 23 as the holding portions of the upper case 1 guide and hold the printed circuit board 5 and the lower case 2 engages (“ Thus, a mold mold for forming the lower case 2 can be easily formed.
[0041]
However, it is not necessary to share these actions, and depending on the embodiment, the printed circuit board holding parts 20 and 23 and the lower case engaging part can be provided separately. That is, a printed circuit board holding part used for holding the printed circuit board 5 may be formed slightly above the inner surface parts of the left and right side parts 1B and 1C of the upper case 1. In this case, it is obvious that the shape may be the same as that of the printed circuit board holding portions 20 and 23.
[0042]
Further, the lower case 2 is detached from the upper case 1 by screwing it into one side of the grooves 2l and 2p of the engaging portion 28 provided on both sides of the rear portion of the lower case 2 as shown in FIGS. When the tip 33a of the lower case 2 is inserted and tilted in the direction of arrow (e), the engaging portion 28 of the lower case 2 moves in the direction of arrow (c), and the end 2j of the elastic piece 2r of the lower case 2 is moved upward The lower case 2 can be removed by pulling the lower case 2 in the direction of the arrow (d) when it is located below the lower surface of the end 1n of the engaging portion 28 of the case 1.
[0043]
Finally, the assembly is completed by screwing the screw 32 into the screw hole 10a of the holder 10 of the printed circuit board 5 through the hole 2g of the lower case 2. The electrical apparatus apparatus in a state where the assembly is completed is shown in FIGS. The screw 32 is intended to electrically connect the lower case 2 and the ground of the printed circuit board 5 through the holder 10.
[0044]
【The invention's effect】
As described above, according to the housing structure of an electrical equipment device according to the present invention, the case body, the holding portion for holding the casing other hand on the inside of both side surfaces orthogonal to the press and inclusive direction of the other of the case and a plurality to press and inclusive direction of this other case, those of the rear end portion of the opposite side is U-shaped projection and the front Ki押and inclusive direction of these holding portions, the lower surface of the U-shaped projection A first engagement portion formed by a step formed by an end portion and a rear portion of the U-shaped projection projecting rearward to form a second engagement portion; and the first engagement of the one case a third engaging portion consisting of a plate-like elastic piece portion inclined upwardly provided on the bottom surface to detachably engage the engagement portion, the holding portion of the foremost toward the press and inclusive direction of one of the case a hook portion that is hooked on, rear surface portion which detachably engages with the second engagement portion of one of the case A from notch provided comprising other to have a fourth engaging section case, be pushed on top of this one of the case by rotating the hook portion on one of the case-side over the holding portion Thus, the end of the elastic piece of the third engaging portion is accommodated in the end of the U-shaped protrusion of the first engaging portion by accommodating the third engaging portion in the step of the first engaging portion. the engaged and, by fixing the said the one case and the other case by engaging the notch of the fourth engaging portion with the second engaging portion, the conventional housing The use of screws is eliminated compared to the structure, and electrical equipment can be easily assembled, improving the assembly workability, while securing the firmness by providing the other case and the engaging part of one case In addition, it is easy to assemble and electrical equipment can be easily assembled. It is possible to improve the standing workability.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a perspective view of an electrical apparatus apparatus provided with a housing structure according to an embodiment of the present invention, as viewed from the front side.
FIG. 2 is a perspective view seen from the rear surface of the electric device apparatus.
FIG. 3 is an exploded perspective view of the electric device apparatus.
FIG. 4 is a perspective view of an upper case.
FIG. 5 is a perspective view of a lower case.
FIG. 6 is a perspective view of a printed circuit board.
FIG. 7 is a perspective view of a push button unit.
FIG. 8 is a perspective view showing an engaged state of an upper case and a lower case.
FIG. 9 is a detailed view of the same part.
FIG. 10 is a perspective view showing a removal operation state of the upper case and the lower case.
FIG. 11 is a detailed view of the same part.
FIG. 12 is a perspective view showing an engaged state of the push button unit and the printed circuit board.
FIG. 13 is a perspective view showing a fixed state of the liquid crystal display.
FIG. 14 is an exploded perspective view of a housing structure of a conventional electric device apparatus.
[Explanation of symbols]
1 Upper case (one case)
1k Step 1n End 2 Lower case (the other case)
2l groove 2p groove 2j end 2r elastic piece 2f notch (fourth engaging portion)
24 engaging portion (second engaging portion)
28 engaging portion (third engaging portion)
29 engaging portion (first engaging portion)
33 Screwdriver (jigs, pressing means)

Claims (2)

ケース本体の、他方のケースの押込み方向に直交する両側面部の内側に方のケースを保持する保持部を、この他方のケースの押込み方向に複数設け、これらの保持部の記押込み方向とは反対側の後端部のものをコ字形突部とし、当該コ字形突部の下面に端部からなる段差によって第1係合部を形成し且つ当該コ字形突部の後部を後方に突出させて第2係合部を形成した一方のケースと、
一方のケースの前記第1係合部に係脱可能に係合する底面部に設けた上方に傾斜した板状の弾性片部から成る第3係合部と、一方のケースの前記押込み方向に向かって最前の保持部に掛けられる引っ掛け部と、一方のケースの前記係合部に係脱可能に係合する後面部に設けた切欠きから成る第4係合部とを有する他方のケースとを備え、
前記引っ掛け部を前記保持部に掛けて一方のケース側に回動してこの一方のケースに重ねて押し込むことにより、前記第1係合部の段差に前記第3係合部を収容させて当該第1係合部の前記コ字形突部の前記端部に前記第3係合部の弾性片の端部を係合し且つ前記第2係合部に前記第4係合部の切欠きを係合することで前記一方のケースと前記他方のケースとを固定することを特徴とする電気機器装置の筐体構造。
Of the case body, a holding portion for holding the other side of the case to the inside of both side surfaces orthogonal to the press and inclusive direction of the other cases, a plurality in the press and inclusive direction of this other case, before these holding portions those of the rear end portion opposite the U-shaped projection and Ki押and inclusive direction, by the step consisting of the end on the lower surface of the U-shaped projection forming a first engagement portion and the U-shaped projection One case in which the rear portion protrudes rearward to form a second engagement portion;
A third engaging portion consisting of one of said plate-shaped elastic piece portion inclined upwardly provided on the bottom surface to detachably engage the first engagement portion of the case, included above push of one case Yes a hook portion that is hooked on the holding portion of the foremost in the direction, and a fourth engaging portion consisting of notches provided in the rear part of removably engaging said second engaging portion of one of the case And the other case
The hook portion is hooked on the holding portion, rotated to one case side, and pushed into the one case so that the third engagement portion is accommodated in the step of the first engagement portion. the ends of the elastic piece of the third engaging portion engages the end portion of the U-shaped projection of the first engagement portion, and the switching of the fourth engagement portion to the second engagement portion A casing structure of an electric device apparatus , wherein the one case and the other case are fixed by engaging a notch .
前記他方のケースの前記第3係合部を形成する板状の弾性片部を、両側に溝を設けて構成し、前記溝の片側に治具を挿入して倒すことで、前記第1係合部の段差に収容された前記第3係合部の前記弾性片部の端部を、前記第1係合部の前記コ字形突部の前記端部の下面により下側に位置させ、前記他方のケースを前記一方のケースから取外し可能としたことを特徴とする請求項1記載の電気機器装置の筐体構造。 The plate-like elastic piece portion forming the third engagement portion of the other case is configured by providing grooves on both sides, and a jig is inserted into one side of the groove to be tilted, thereby allowing the first engagement An end portion of the elastic piece portion of the third engaging portion housed in a step of the joint portion is positioned below by a lower surface of the end portion of the U-shaped protrusion of the first engaging portion, and 2. The housing structure for an electric device according to claim 1 , wherein the other case is removable from the one case .
JP18428396A 1996-06-26 1996-06-26 Housing structure of electrical equipment Expired - Fee Related JP3681224B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18428396A JP3681224B2 (en) 1996-06-26 1996-06-26 Housing structure of electrical equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18428396A JP3681224B2 (en) 1996-06-26 1996-06-26 Housing structure of electrical equipment

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JPH1013046A JPH1013046A (en) 1998-01-16
JP3681224B2 true JP3681224B2 (en) 2005-08-10

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JP18428396A Expired - Fee Related JP3681224B2 (en) 1996-06-26 1996-06-26 Housing structure of electrical equipment

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