JP4212874B2

JP4212874B2 - Ventilation gallery

Info

Publication number: JP4212874B2
Application number: JP2002340343A
Authority: JP
Inventors: 耕一篠原
Original assignee: 篠原電機株式会社
Priority date: 2002-11-25
Filing date: 2002-11-25
Publication date: 2009-01-21
Anticipated expiration: 2022-11-25
Also published as: JP2004179203A

Description

【０００１】
【発明の属する技術分野】
本発明は、屋内に設置される制御盤、計器盤、コンピュータ関連のサーバー等の電気機器ボックスに適用される通気ギャラリーに関する。
【０００２】
【従来の技術】
本発明に関して、ギャラリー本体と、その内部に装填されるフィルターとで構成した通気ギャラリーが公知である（特許文献１参照）。ギャラリー本体は、四角形の枠部の前面開口にルーバー壁を多段状に形成し、前面周縁にフランジ壁を張り出し形成したプラスチック成形品からなる。通気ギャラリーの取り付け時には、壁面の取付開口に枠部を壁外面側から差し込み装填し、枠部内面の４隅に締結した押さえ金具とフランジ壁とで取付開口の周縁壁を内外に挟持することにより、ギャラリー本体を壁面に分離不能に固定できる。強制換気を行う場合には、枠部内面の４隅にインサート固定したナットを利用してファンユニットを取り付けることができる。
【０００３】
【特許文献１】
実公平５−３７５０８号公報（２頁、第１図）
【０００４】
本発明の通気ギャラリーは、取付開口に装着される本体ケースと、本体ケースに収容されるフィルターと、本体ケースの前面開口を覆うカバーとで構成するが、この種の通気ギャラリーは市販されている（リタール株式会社、商品名フィルターファンユニット）。そこでは先の通気ギャラリーと同様に、本体ケースの内面４隅に設けた挿通穴を利用してファンユニットを取り付けることができる。
【０００５】
【発明が解決しようとする課題】
特許文献１に係る通気ギャラリーを壁面に取り付ける場合には、ギャラリー本体を壁外面側から取付開口に装填した後、壁内面側へ回り込んで、ギャラリー本体の内面に４個の押さえ金具をビス止めしなければならず、通気ギャラリーの取り付けに多くの手間が掛かる。取付開口の開口位置によっては、取付開口に装填したギャラリー本体を落下しないように支え保持しておく必要があり、通気ギャラリーの取り付けに２名の作業者を要し、その分余分なコストが掛る不利もある。
【０００６】
この点、市販品の通気ギャラリーの場合には、本体ケースの左右両側に係合爪が設けてあるので、本体ケースを壁外面側から取付開口に押し込むだけで仮組み状態を維持でき、しかも、壁外面側からビスをねじ込んで本体ケースを固定できるので、壁の内面側へ回り込む必要がなく、通気ギャラリーの取り付けを簡便に行える。しかし、本体ケースの前面開口より外面側にルーバー壁を設ける構造を採るので、通気ギャラリーを壁面に装着した状態において、カバーが壁面から大きく（１０mm以上）突出する不利がある。つまり、カバーに他物が接触しやすく、最悪の場合にはカバーが破損することもある。
【０００７】
本発明の目的は、壁面に対する取り付けの手間を軽減できるうえ、カバーの壁前面からの突出寸法を最小限化でき、従って、他物との接触を防止できる通気ギャラリーを提供することにある。本発明の目的は、本体ケースをワンタッチで仮止め装着でき、従って、より少ない手間で迅速に取り付けられる通気ギャラリーを提供することにある。
【０００８】
【課題を解決するための手段】
本発明の通気ギャラリーは、図１に示すように壁面の取付開口１に装着される本体ケース２と、本体ケース２に収容されるフィルター３と、本体ケース２の前面を覆う通気自在なカバー４とを備えている。本体ケース２は、フィルター３を収容する通気自在な収容部５と、収容部５の開口周縁に張り出されるフランジ６と、収容部５の周囲に設けられて、取付開口１の周縁壁と係合する第１係合爪１６を備えている。本体ケース２は、フランジ６および収容部５を横切る分割線で分割された一対のケース分割枠２Ａ・２Ｂと、両ケース分割枠２Ａ・２Ｂの分割縁どうしを繋ぐヒンジ片１５とで構成してあることを特徴とする。
【０００９】
上記のカバー４と本体ケース２との間には、互いに係合してカバー４の装着状態を維持する弾性変形可能な第２係合爪２４と、係合段部２５とが設けられる。以て、第２係合爪２４をカバー４の外面から操作して、第２係合爪２４と係合段部２５との係合状態を解除できるように構成する。
【００１０】
カバー４は、本体ケース２の収容部５に内嵌するカバー枠２０と、カバー枠２０の内面を多段状に区分するルーバー壁２１と、カバー枠２０の前面周縁に張り出し形成されるカバーフランジ２２とで構成する。カバー４を本体ケース２に組み付けた状態において、カバーフランジ２２は本体ケース２のフランジ６に外接する。
【００１１】
カバー４は、個別に形成された一対のカバー分割枠４Ａ・４Ｂで構成する。各カバー分割枠４Ａ・４Ｂの接合縁に、互いに係合して両カバー分割枠４Ａ・４Ｂどうしを屈折可能に連結する一対のカバー連結体４２・４３を形成する。
【００１２】
本発明の別の通気フランジは、壁面の取付開口１に装着される本体ケース２と、本体ケース２に収容されるフィルター３と、本体ケース２の前面を覆う通気自在なカバー４とを備えている。本体ケース２は、フィルター３を収容する通気自在な収容部５と、収容部５の開口周縁に張り出されるフランジ６と、収容部５の周囲壁に設けられて、取付開口１の周縁壁と係合する第１係合爪１６を備えている。本体ケース２は、フランジ６および収容部５の中央を横切る分割線で分割されて、互いに点対称な関係にある一対のケース分割枠２Ａ・２Ｂで構成する。各ケース分割枠２Ａ・２Ｂの接合縁に、互いに係合して両ケース分割枠２Ａ・２Ｂどうしを屈折可能に連結する一対のケース連結体３９・４０を形成する。
【００１３】
カバー４と本体ケース２との間に、互いに係合してカバー４の装着状態を維持する弾性変形可能な第２係合爪２４と、係合段部２５とを設ける。第２係合爪２４をカバー４の外面から操作して、第２係合爪２４と係合段部２５との係合状態を解除できるように構成する。
【００１４】
カバー４は、個別に形成された一対のカバー分割枠４Ａ・４Ｂで構成する。各カバー分割枠４Ａ・４Ｂの接合縁に、互いに係合して両カバー分割枠４Ａ・４Ｂどうしを屈折可能に連結する一対のカバー連結体４２・４３を形成する。
【００１５】
【発明の作用効果】
本発明に係る通気ギャラリーにおいては、一対のケース分割枠２Ａ・２Ｂと、両分割枠２Ａ・２Ｂの分割縁どうしを繋ぐヒンジ片１５とで本体ケース２を構成し、ヒンジ片１５中心にして山形に屈折した本体ケース２を取付開口１に当て嵌めながら、屈曲部分を押圧してケース全体を扁平化することにより、本体ケース２を取付開口１にワンタッチで仮組み装填できるようにするので、本体ケース２の壁面に対する取り付けの手間を省いて、通気ギャラリーの取り付けをより少ない手間で迅速に行える。本体ケース２を取付開口１に装着した状態においては、第１係合爪１６が取付開口１の周縁壁と係合して、本体ケース２の仮組み状態を維持できるので、従来の通気ギャラリーにおいて不可欠であった、本体ケース２を仮組み姿勢のままで支持する作業者を省いて、一人の作業者のみで本体ケース２の組み付けを行うことができ、その分だけ通気ギャラリーの取り付け作業に要するコストを削減できる（請求項１）。
【００１６】
本体ケース２に装着したカバー４は、外部振動を受け、あるいは他物が接当するなど、外力を受けて本体ケース２から分離脱落するおそれがある。こうしたカバー４の脱落とフィルター３の分離を確実に防止するために、カバー４と本体ケース２との間に、互いに係合する第２係合爪２４と、係合段部２５とを設けて、カバー４の分離脱落を阻止している。フィルター３は、必要に応じて交換し、あるいは洗浄するなどの保守や点検を行う必要がある。その場合には、カバー４を本体ケース２から取り外す必要があり、そのために、第２係合爪２４をカバー４の外面から操作して、第２係合爪２４と係合段部２５との係合状態を解除できるようにしている（請求項２）。
【００１７】
収容部５に内嵌するカバー枠２０と、カバー枠２０の内面のルーバー壁２１と、カバーフランジ２２とで構成したカバー４によれば、カバー４を本体ケース２に組み付けた状態において、カバー枠２０とルーバー壁２１の大半の部分を収容部５内に収容して、壁外面に突出する部材をカバーフランジ２２と本体ケース２のみに限ることができるので、カバー４の壁面からの突出寸法を最小限化でき、従って、カバー４が他物と接触するのを極力防止できる通気ギャラリーが得られる（請求項３、請求項６）。
【００１８】
個別に形成した一対のカバー分割枠４Ａ・４Ｂで構成したカバー４によれば、各カバー分割枠４Ａ・４Ｂどうしをカバー連結体４２・４３で連結することにより、両カバー分割枠４Ａ・４Ｂどうしを屈折できるので、山形に屈折したカバー４を本体ケース２の収容部５に当て嵌めながら、屈曲部分を押圧してカバー全体を扁平化することにより、カバー４を本体ケース２に対してワンタッチで装填でき、その分だけ取り付けの手間を省くことができる（請求項４、請求項７）。
【００１９】
本体ケース２を、互いに点対称な関係にある一対のケース分割枠２Ａ・２Ｂで構成した通気ギャラリ−によれば、両ケース分割枠２Ａ・２Ｂを同一部品化できるので、本体ケース２の全体を同時成形する場合に比べて、金型の製作費用を節約できるうえ、ケース分割枠２Ａ・２Ｂの１個あたりの成形費用をも節約して、通気ギャラリーを低コストで提供できる。ケース分割枠２Ａ・２Ｂのいずれか一方が破損した場合にでも、破損した分割枠を交換すればよく、本体ケース２の全体を交換する場合に比べて、交換コストを削減できる。一対のケース連結体３９・４０で連結した両ケース分割枠２Ａ・２Ｂは互いに屈折できるので、山形に屈折した本体ケース２を取付開口１に当て嵌めながら、屈曲部分を押圧してケース全体を扁平化することにより、本体ケース２を取付開口１にワンタッチで仮組み装填でき、先の本体ケース２と同様に壁面に対する取り付けの手間を省くことができる（請求項５）。
【００２０】
【実施例】
（実施例１）図１ないし図６に、本発明に係る通気ギャラリーの実施例を示す。図２において、通気ギャラリーは、電気機器ボックスの壁面に開口した取付開口１に装着される本体ケース２と、本体ケース２に収容される防塵用のフィルター３と、本体ケース２の前面の開口を覆う通気自在なカバー４とで構成する。
【００２１】
図２および図３において本体ケース２は、フィルター３を収容する通気自在な収容部５と、収容部５の前面の開口周縁に張り出されるフランジ６とを備えている。収容部５は、四角枠状の周壁８と、周壁８の後面開口を通気自在に区分する格子体９と、格子体９の後面４隅を塞ぐ三角形状の取付壁１０とで構成してある。フランジ６の４隅には本体ケース２を取付開口１の周縁壁に締結するためのビス穴１１が形成してある。各取付壁１０にも同様のビス穴１２を形成するが、このビス穴１２は後述するファンユニット３０を装着する場合に使用する。
【００２２】
本体ケース２の取付開口１に対する装着をワンタッチで行うために、本体ケース２は左右一対の分割枠（ケース分割枠）２Ａ・２Ｂで構成する。図１および図２に示すように、分割枠２Ａ・２Ｂは、上下のフランジ６と収容部５との左右中央を通る縦方向の分割線で左右均等に区分されており、それぞれの分割縁の上下３個所が逆Ｖ字状のヒンジ片１５で繋いである。なお、両分割枠２Ａ・２Ｂとヒンジ片１５との三者は同時に一体成形される。
【００２３】
図１に示すように両分割枠２Ａ・２Ｂは、ヒンジ片１５を中心にして山形に屈折でき、全体を扁平にした状態では、両分割枠２Ａ・２Ｂの分割縁どうしが密着して、分割されたフランジ６、および格子体９どうしを連続させることができる。なお、図３に示すように、自由状態における左右の分割枠２Ａ・２Ｂは、小さな隙間を介して隣接している。
【００２４】
本体ケース２を取付開口１に装着するとき、本体ケース２の装着状態を維持するために、左右で対向する両分割枠２Ａ・２Ｂの周壁８外面に、それぞれ取付開口１の周縁壁と係合する係合爪（第１係合爪）１６を一体に形成し、さらに、周壁８の上下の分割縁寄りに先の周縁壁と係合する係合片１７を一体に膨出形成している。図１において係合爪１６はフランジ６の後面から周壁８に沿って突設される爪腕１６ａと、爪腕１６ａに多段状に設けた係合段部１６ｂを備えており、爪腕１６ａの左右方向への弾性変形を容易化するために、係合爪１６は周壁８から分離してある。係合段部１６ｂを多段状に形成するのは、電気機器ボックスの壁面の厚みの違いに対応するためである。係合片１７は、フランジ６と協同して取付開口１の周縁壁を内外から挟持する（図６参照）。
【００２５】
フィルター３は、連続気泡性の発泡プラスチックシート、あるいは繊維を絡ませて形成したマットなどを素材にして形成してあり、外形が先の収容部５の内面形状に合わせて正方形状に形成してある。目詰まりによって通気量が低下するのを是正するために、フィルター３は一定期間ごとに新規フィルターと交換される。
【００２６】
カバー４は、本体ケース２の収容部５に嵌まり込む四角形状のカバー枠２０と、カバー枠２０の内面を多段状に区分するルーバー壁２１と、カバー枠２０の前面周縁に張り出されるカバーフランジ２２とを一体に形成したプラスチック成形品からなる。カバーフランジ２２の周縁には、本体ケース２のフランジ６の周縁外面を覆い隠す周縁壁２３が一体に形成してある。
【００２７】
本体ケース２に対するカバー４の装着状態を維持するために、両者２・４間に互いに係合する係合爪２４と係合段部２５とを設ける。詳しくは、図３および図６に示すように、本体ケース２のフランジ６の一側隅寄りに係合爪（第２係合爪）２４を設け、カバー枠２０の側に係合段部２５を設ける。係合爪２４は、カバーフランジ２２の開口を介して、カバー外面に臨んでいるので、必要時には開口を介して係合爪２４を係合解除操作することにより、カバー４を本体ケース２から取り外すことができる。
【００２８】
以上のように構成した通気ギャラリーの組み立て手順を以下に説明する。まず、本体ケース２を取付開口１に組む。自由状態の両分割枠２Ａ・２Ｂを、図１に示すようにヒンジ片１５を中心にして山形に屈折したうえで、周壁８の左右壁を取付開口１内に嵌め込む。次に、矢印で示すように屈折中心部分を押圧して、本体ケース２の全体を扁平にしながら、周壁８の上下壁を取付開口１内に嵌め込む。周壁８の全体が取付開口１内に嵌まり込んだ状態では、両分割枠２Ａ・２Ｂの分割縁どうしが密着し、ヒンジ片１５は収容部５の内面に突出する。つまり、本体ケース２は、屈折中心部分を押圧するだけのワンタッチ操作で、取付開口１に仮組み装着できる。収容部５の内面に突出するヒンジ片１５は、フィルター３の遊動を防ぐことにも役立つ。
【００２９】
図４に示すように、周壁８の左右に設けた４個の係合爪１６は、それぞれ取付開口１の周縁壁の内面に係合して、フランジ６が壁面から浮き上がるのを阻止する。同様に上下の係合片１７も取付開口１の周縁壁の内面に係合する。このとき左右の分割枠２Ａ・２Ｂには、ヒンジ片１５の弾性によって互いに離れようとする力が作用し、互いに突っ張り合う。そのため、係合爪１６は取付開口１の周縁壁との係合状態を維持でき、仮組み状態を維持し続けることができる。
【００３０】
上記の状態で、４隅のビス穴１１に挿通したビス２９でフランジ６を締結固定する。次に、収容部５にフィルター３を嵌め込み装着した後、カバー枠２０を収容部５に装填することにより、フィルター３がカバー枠２０の後面と格子体９とで前後に挟み保持され、カバーフランジ２２がフランジ６に密着する。このように、カバー４を本体ケース２に装着した状態においては、図５に示すように、両フランジ６・２２の合計厚み分が壁面から突出するだけに過ぎず、従来のこの種の通気ギャラリーに比べて、カバー４の突出寸法を小さくできる。
【００３１】
カバー４を本体ケース２に組み付けた状態では、図６に示すように両者２・４間に設けた係合爪２４と係合段部２５とが係合するので、カバー４が本体ケース２から分離することはない。フィルター３を交換する場合には、開口２６に臨んでいる係合爪２４を係合解除操作して、カバー４の全体を本体ケース２から取り外し、新旧のフィルター３を交換した後、カバー４を再装着する。通気ギャラリーは単体で使用できるが、図１１（ａ）に示すように複数個の通気ギャラリーを上下に隣接する状態で取り付けて使用することができる。
【００３２】
電気機器ボックス内を強制換気する場合には、ファンユニット３０を本体ケース２の内面側に装着する。図４に示すように、ファンユニット３０は、導風筒を兼ねるファン枠３１の内部に扁平なモーター３２と軸流ファン３３とを配置したユニット部品からなり、ファン枠３１の４隅の取付ブラケットにビス穴３５が設けてある（図５参照）。ビス３６を収容部５側からビス穴１２を介してビス穴３５にねじ込むことにより、ファンユニット３０を本体ケース２と一体化できる。なお、ファンユニット３０を併用しない場合には、フランジ６をビス２９で締結固定する必要はなく、取付開口１の周縁壁と係合する係合爪１６の係合力のみで本体ケース２の装着状態を維持し続けることができる。
【００３３】
（実施例２）図７および図８に、本発明の通気ギャラリーの別の実施例を示す。そこでは、フランジ６および収容部５の左右中央を縦方向の分割線で分割した、左右一対の分割枠２Ａ・２Ｂで本体ケース２を構成する点が、先の実施例と基本的に異なる。左右一対の分割枠２Ａ・２Ｂは、同一部品であって互いに点対称な関係にある。各分割枠２Ａ・２Ｂの接合縁の近傍には、互いに係合して両分割枠２Ａ・２Ｂどうしを連結する一対の連結体（ケース連結体）３９・４０が形成してある。
【００３４】
片方の連結体３９は格子枠９と一体に形成した丸軸からなり、他方の連結体４０は先の丸軸に係合するＵ字状のソケットからなる。各分割枠２Ａ・２Ｂにおいては、丸軸状の連結体３９とソケット状の連結体４０とが互いに対の関係となるうえ、それぞれの対の連結中心が一致しているので、これらを係合連結することにより、屈折可能な本体ケース２が得られ、先の実施例と同様にして、本体ケース２をワンタッチで取付開口１に装着できる。他は先の実施例と同じであるので、同じ部材に同じ符号を付してその説明を省略する。以下の実施例においても同じ扱いとする。
【００３５】
（実施例３）図９および図１０はカバー４の別の実施例を示す。そこでは、カバー枠２０とカバーフランジ２２を横方向の分割線で分割して得られる上下一対の分割枠（カバー分割枠）４Ａ・４Ｂでカバー４を構成した。上下の分割枠４Ａ・４Ｂの接合縁には、互いに係合して両分割枠４Ａ・４Ｂどうしを連結する一対の連結体（カバー連結体）４２・４３が形成してある。片方の連結体４２は上半分側のカバー枠２０の接合縁に形成した丸軸からなり、他方の連結体４３は下半分側のカバー枠２０の接合縁に形成したＵ字状のソケットからなる。カバー枠２０の上下壁には、弾性変形可能な係合脚４４が左右一対ずつ形成してある。
【００３６】
両連結体４２・４３を係合連結することにより、屈折可能なカバー４が得られ、先の実施例と同様にして、カバー４をワンタッチで本体ケース２に装着でき、装着状態における係合脚４４は、図１０に示すように、本体ケース２に通設した通口４５を介してケース外へ突出し、取付開口１の周縁壁と係合する。従って、図１１（ｂ）に示すように、複数個の通気ギャラリーを左右横長の取付開口１に装着する場合には、係合脚４４が取付開口１の周縁壁と係合することによって、カバー４と本体ケース２の両者を分離不能に固定できることになる。
【００３７】
実施例１においては、左右の分割枠２Ａ・２Ｂを左右均等に分割したが、その必要はなく、分割枠の一方を他方より大きく形成するなど、非対称形状に形成することができる。また、分割線は縦、横、斜め、のいずれでも良く、必要があれば湾曲線や波形の分割線に沿って分割することができる。係合爪２４を周壁８の側に形成して、その爪遊端をフランジ６と対向させることができる。
【００３８】
実施例２で説明した分割枠２Ａ・２Ｂは、ヒンジボスを格子枠９と一体に設けておいて、上下に隣接するヒンジボスどうしをピンや軸で連結することができる。
【図面の簡単な説明】
【図１】本体ケースの装着要領を示す断面図である。
【図２】通気ギャラリーの分解斜視図である。
【図３】本体ケースの正面図である。
【図４】図５におけるＡ−Ａ線断面図である。
【図５】通気ギャラリーの縦断側面図である。
【図６】カバーの固定構造を示す断面図である。
【図７】本体ケースの別の実施例を示す正面図である。
【図８】連結体どうしを連結した状態の横断平面図である。
【図９】カバーの別の実施例を示す縦断側面図である。
【図１０】カバーの装着状態を示す断面図である。
【図１１】通気ギャラリーの使用例を示す正面図である。
【符号の説明】
１取付開口
２本体ケース
２Ａ・２Ｂケース分割枠（分割枠）
３フィルター
４カバー
４Ａ・４Ｂカバー分割枠（分割枠）
５収容部
６フランジ
１６係合爪（第１係合爪）
２０カバー枠
２１ルーバー壁
２２バーフランジ
２４係合爪（第２係合爪）
２５係合段部
３９・４０ケース連結体（連結体）
４２・４３カバー連結体（連結体） [0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ventilation gallery applied to electrical equipment boxes such as control panels, instrument panels, and computer-related servers installed indoors.
[0002]
[Prior art]
Regarding the present invention, a ventilation gallery composed of a gallery main body and a filter loaded therein is known (see Patent Document 1). The gallery main body is formed of a plastic molded product in which a louver wall is formed in a multi-stage shape at a front opening of a quadrangular frame portion, and a flange wall is formed over the periphery of the front surface. When installing the ventilation gallery, insert the frame part into the mounting opening on the wall surface from the wall outer surface side, and hold the peripheral wall of the mounting opening inside and outside with the presser fittings and flange walls fastened at the four corners of the inner surface of the frame part The gallery body can be fixed to the wall inseparably. When performing forced ventilation, the fan unit can be attached using nuts that are insert-fixed to the four corners of the inner surface of the frame.
[0003]
[Patent Document 1]
Japanese Utility Model Publication No. 5-37508 (page 2, Fig. 1)
[0004]
The ventilation gallery of the present invention includes a main body case that is mounted in the mounting opening, a filter that is accommodated in the main body case, and a cover that covers the front opening of the main body case. This type of ventilation gallery is commercially available. (Rittal Co., Ltd., trade name filter fan unit). In this case, the fan unit can be mounted using the insertion holes provided at the four corners of the inner surface of the main body case, as in the previous ventilation gallery.
[0005]
[Problems to be solved by the invention]
When attaching the ventilation gallery according to Patent Document 1 to the wall surface, after loading the gallery main body into the mounting opening from the wall outer surface side, wrap around the wall inner surface side and fix the four press fittings on the inner surface of the gallery main body with screws. It takes a lot of work to install the ventilation gallery. Depending on the opening position of the mounting opening, it is necessary to support and hold the gallery main body loaded in the mounting opening so that it does not fall down. Two people are required to install the ventilation gallery, and an extra cost is required accordingly. There are also disadvantages.
[0006]
In this regard, in the case of a commercially available ventilation gallery, the engagement claw is provided on both the left and right sides of the main body case, so that the temporarily assembled state can be maintained simply by pushing the main body case into the mounting opening from the wall outer surface side, Since the body case can be fixed by screwing in from the outer wall surface side, it is not necessary to go around to the inner surface side of the wall, and the ventilation gallery can be easily attached. However, since the louver wall is provided on the outer surface side of the front opening of the main body case, there is a disadvantage that the cover protrudes greatly (10 mm or more) from the wall surface when the ventilation gallery is mounted on the wall surface. That is, it is easy for other objects to come into contact with the cover, and in the worst case, the cover may be damaged.
[0007]
An object of the present invention is to provide a ventilation gallery that can reduce the trouble of mounting on a wall surface and can minimize the projecting dimension of the cover from the front surface of the wall, thereby preventing contact with other objects. An object of the present invention is to provide a ventilation gallery in which a body case can be temporarily attached by one touch, and thus can be quickly installed with less effort.
[0008]
[Means for Solving the Problems]
As shown in FIG. 1, the ventilation gallery of the present invention includes a main body case 2 attached to the mounting opening 1 on the wall surface, a filter 3 accommodated in the main body case 2, and a breathable cover 4 that covers the front surface of the main body case 2. And. The main body case 2 is provided with a breathable housing portion 5 for housing the filter 3, a flange 6 projecting from the opening periphery of the housing portion 5, and a peripheral wall of the mounting opening 1 provided around the housing portion 5. A first engaging claw 16 is provided. The main body case 2 includes a pair of case division frames 2A and 2B divided by a dividing line that crosses the flange 6 and the housing portion 5, and a hinge piece 15 that connects the division edges of the case division frames 2A and 2B. It is characterized by being.
[0009]
Between the cover 4 and the main body case 2 above, the second engaging claw 24 elastically deformable to maintain the mounted state of the cover 4 engage with each other, are provided with engagement step 25. Thus, the second engagement claw 24 is operated from the outer surface of the cover 4 so that the engagement state between the second engagement claw 24 and the engagement step portion 25 can be released.
[0010]
The cover 4 includes a cover frame 20 that fits inside the housing portion 5 of the main body case 2, a louver wall 21 that divides the inner surface of the cover frame 20 into a multi-stage shape, and a cover flange 22 that is formed to protrude from the front periphery of the cover frame 20. And consist of In a state where the cover 4 is assembled to the main body case 2, the cover flange 22 circumscribes the flange 6 of the main body case 2.
[0011]
The cover 4 is composed of a pair of cover division frames 4A and 4B formed individually. A pair of cover coupling bodies 42 and 43 are formed at the joint edges of the cover division frames 4A and 4B so as to engage with each other and couple the cover division frames 4A and 4B in a refractive manner.
[0012]
Another ventilation flange of the present invention includes a main body case 2 attached to the mounting opening 1 on the wall surface, a filter 3 accommodated in the main body case 2, and a breathable cover 4 that covers the front surface of the main body case 2. Yes. The main body case 2 is provided with a breathable accommodating portion 5 that accommodates the filter 3, a flange 6 that projects to the periphery of the opening of the accommodating portion 5, and a peripheral wall of the mounting opening 1 provided on the peripheral wall of the accommodating portion 5. and a first engagement claw 16 to be engaged. The main body case 2 is constituted by a pair of case division frames 2A and 2B which are divided by a dividing line across the center of the flange 6 and the accommodating portion 5 and which are in a point-symmetrical relationship with each other. A pair of case coupling bodies 39 and 40 are formed at the joint edges of the case division frames 2A and 2B so as to engage with each other and couple the case division frames 2A and 2B in a refractive manner.
[0013]
Between the cover 4 and the main body case 2, the second engaging claw 24 elastically deformable to maintain the mounted state of the cover 4 engage with each other, it provided the engagement step 25. The second engagement claw 24 is operated from the outer surface of the cover 4 so that the engagement state between the second engagement claw 24 and the engagement step portion 25 can be released.
[0014]
The cover 4 is composed of a pair of cover division frames 4A and 4B formed individually. A pair of cover coupling bodies 42 and 43 are formed at the joint edges of the cover division frames 4A and 4B so as to engage with each other and couple the cover division frames 4A and 4B in a refractive manner.
[0015]
[Effects of the invention]
In the ventilation gallery according to the present invention, the main body case 2 is composed of a pair of case division frames 2A and 2B and a hinge piece 15 connecting the division edges of both division frames 2A and 2B. The main body case 2 can be temporarily assembled and loaded into the mounting opening 1 by pressing the bent portion and flattening the entire case while fitting the main body case 2 refracted to the mounting opening 1. The trouble of attaching the case 2 to the wall surface can be saved, and the ventilation gallery can be quickly attached with less trouble. In the state in which the main body case 2 is mounted on the mounting opening 1, the first engagement claw 16 can be engaged with the peripheral wall of the mounting opening 1 to maintain the temporarily assembled state of the main body case 2. The worker who supports the main body case 2 in the temporarily assembled posture can be omitted, and the main body case 2 can be assembled by only one worker, and the work for installing the ventilation gallery is required accordingly. Cost can be reduced (claim 1).
[0016]
The cover 4 attached to the main body case 2 may be separated from the main body case 2 due to external force such as external vibration or contact with another object. In order to reliably prevent the cover 4 from falling off and the filter 3 from separating, a second engaging claw 24 and an engaging step portion 25 that are engaged with each other are provided between the cover 4 and the body case 2. The cover 4 is prevented from separating and falling off. The filter 3 needs to be maintained or inspected, such as being replaced or cleaned as necessary. In that case, it is necessary to remove the cover 4 from the main body case 2. For this purpose, the second engagement claw 24 is operated from the outer surface of the cover 4, and the second engagement claw 24 and the engagement step portion 25 are connected. The engaged state can be released (claim 2).
[0017]
According to the cover 4 constituted by the cover frame 20 fitted in the accommodating portion 5, the louver wall 21 on the inner surface of the cover frame 20, and the cover flange 22, the cover frame is attached in the state where the cover 4 is assembled to the main body case 2. 20 and most of the louver wall 21 can be accommodated in the accommodating portion 5 and the members protruding to the outer surface of the wall can be limited to the cover flange 22 and the main body case 2 only. A ventilation gallery can be obtained that can be minimized and thus prevent the cover 4 from coming into contact with other objects as much as possible (claims 3 and 6).
[0018]
According to the cover 4 has a pair of cover divided frame 4A-4B formed separately, by connecting with the cover connection body 42, 43 was what each cover divided frames 4A-4B, and if both the cover divided frames 4A-4B The cover 4 is pressed against the main body case 2 with one touch by pressing the bent portion and flattening the entire cover while fitting the cover 4 refracted in a mountain shape to the receiving portion 5 of the main body case 2. It can be loaded, and the labor of attachment can be saved correspondingly (claims 4 and 7).
[0019]
According to the ventilation gallery in which the main body case 2 is composed of a pair of case division frames 2A and 2B having a point-symmetric relationship with each other, both the case division frames 2A and 2B can be made into the same part. Compared to simultaneous molding, the manufacturing cost of the mold can be saved, and the molding cost for each of the case dividing frames 2A and 2B can be saved, and the ventilation gallery can be provided at a low cost. Even when either one of the case dividing frames 2A and 2B is damaged, the damaged dividing frame may be replaced, and the replacement cost can be reduced as compared with the case where the entire main body case 2 is replaced. Since the case dividing frames 2A and 2B connected by the pair of case connecting bodies 39 and 40 can be refracted to each other, the entire case is flattened by pressing the bent portion while fitting the main body case 2 refracted in a mountain shape to the mounting opening 1. Thus, the main body case 2 can be temporarily assembled and loaded into the mounting opening 1 with one touch, and the mounting work on the wall surface can be saved as in the case of the main body case 2 (claim 5).
[0020]
【Example】
Embodiment 1 FIGS. 1 to 6 show an embodiment of a ventilation gallery according to the present invention. In FIG. 2, the ventilation gallery includes a main body case 2 attached to a mounting opening 1 opened on the wall surface of the electric equipment box, a dustproof filter 3 housed in the main body case 2, and an opening on the front surface of the main body case 2. It is comprised with the cover 4 which can be ventilated to cover.
[0021]
2 and FIG. 3, the main body case 2 includes a breathable accommodating portion 5 that accommodates the filter 3, and a flange 6 that projects to the opening periphery of the front surface of the accommodating portion 5. The accommodating portion 5 includes a square frame-shaped peripheral wall 8, a lattice body 9 that divides the rear surface opening of the peripheral wall 8 in a breathable manner, and a triangular mounting wall 10 that closes four corners on the rear surface of the lattice body 9. . Screw holes 11 for fastening the body case 2 to the peripheral wall of the mounting opening 1 are formed at the four corners of the flange 6. A similar screw hole 12 is formed in each mounting wall 10, and this screw hole 12 is used when a fan unit 30 described later is mounted.
[0022]
In order to mount the main body case 2 on the mounting opening 1 with one touch, the main body case 2 is composed of a pair of left and right divided frames (case divided frames) 2A and 2B. As shown in FIG. 1 and FIG. 2, the divided frames 2A and 2B are equally divided on the left and right by a vertical dividing line passing through the left and right centers of the upper and lower flanges 6 and the accommodating portion 5. The upper and lower three places are connected by an inverted V-shaped hinge piece 15. It should be noted that the three of the divided frames 2A and 2B and the hinge piece 15 are integrally formed at the same time.
[0023]
As shown in FIG. 1, the two divided frames 2A and 2B can be refracted in a mountain shape with the hinge piece 15 as the center, and in a state where the whole is flattened, the divided edges of the two divided frames 2A and 2B are in close contact with each other. The flanges 6 and the lattice bodies 9 can be made continuous. As shown in FIG. 3, the left and right divided frames 2A and 2B in the free state are adjacent to each other through a small gap.
[0024]
When the main body case 2 is attached to the mounting opening 1, in order to maintain the mounting state of the main body case 2, the outer peripheral walls 8 of both the divided frames 2 A and 2 B facing each other are engaged with the peripheral wall of the mounting opening 1. An engaging claw (first engaging claw) 16 is integrally formed, and an engaging piece 17 that is engaged with the previous peripheral wall is integrally bulged near the upper and lower divided edges of the peripheral wall 8. . In FIG. 1, the engaging claw 16 includes a claw arm 16a projecting from the rear surface of the flange 6 along the peripheral wall 8, and an engaging step portion 16b provided in a multi-stage shape on the claw arm 16a. In order to facilitate elastic deformation in the left-right direction, the engaging claw 16 is separated from the peripheral wall 8. The reason why the engaging step portion 16b is formed in a multi-stage shape is to cope with the difference in the thickness of the wall surface of the electric equipment box. The engaging piece 17 cooperates with the flange 6 to clamp the peripheral wall of the mounting opening 1 from inside and outside (see FIG. 6).
[0025]
The filter 3 is made of an open-cell foamed plastic sheet or a mat formed by entanglement of fibers, and the outer shape is formed in a square shape in accordance with the inner shape of the previous accommodating portion 5. . In order to correct the decrease in the air flow rate due to clogging, the filter 3 is replaced with a new filter at regular intervals.
[0026]
The cover 4 includes a quadrangular cover frame 20 that fits into the accommodating portion 5 of the main body case 2, a louver wall 21 that divides the inner surface of the cover frame 20 into a multi-stage shape, and a cover that projects from the front periphery of the cover frame 20. It consists of a plastic molded product integrally formed with the flange 22. A peripheral wall 23 that covers the outer peripheral surface of the flange 6 of the main body case 2 is formed integrally with the peripheral edge of the cover flange 22.
[0027]
In order to maintain the mounting state of the cover 4 with respect to the main body case 2, an engaging claw 24 and an engaging step portion 25 that are engaged with each other are provided between the two and the four. Specifically, as shown in FIGS. 3 and 6, an engagement claw (second engagement claw) 24 is provided near one corner of the flange 6 of the main body case 2, and the engagement step portion 25 is provided on the cover frame 20 side. Is provided. Since the engaging claw 24 faces the outer surface of the cover through the opening of the cover flange 22, the cover 4 is detached from the main body case 2 by releasing the engagement of the engaging claw 24 through the opening when necessary. be able to.
[0028]
The procedure for assembling the ventilation gallery configured as described above will be described below. First, the main body case 2 is assembled to the mounting opening 1. As shown in FIG. 1, the two divided frames 2 A and 2 B in a free state are refracted in a mountain shape around the hinge piece 15, and the left and right walls of the peripheral wall 8 are fitted into the mounting opening 1. Next, the upper and lower walls of the peripheral wall 8 are fitted into the mounting opening 1 while pressing the center of refraction as shown by the arrows to flatten the entire body case 2. In a state in which the entire peripheral wall 8 is fitted in the mounting opening 1, the divided edges of the two divided frames 2 A and 2 B are in close contact with each other, and the hinge piece 15 protrudes from the inner surface of the housing portion 5. That is, the main body case 2 can be temporarily assembled and attached to the mounting opening 1 by a one-touch operation that only presses the center of refraction. The hinge piece 15 protruding from the inner surface of the accommodating portion 5 is also useful for preventing the filter 3 from moving.
[0029]
As shown in FIG. 4, the four engaging claws 16 provided on the left and right sides of the peripheral wall 8 engage with the inner surface of the peripheral wall of the mounting opening 1 to prevent the flange 6 from being lifted from the wall surface. Similarly, the upper and lower engaging pieces 17 are engaged with the inner surface of the peripheral wall of the mounting opening 1. At this time, the left and right divided frames 2 A and 2 B are subjected to a force to move away from each other by the elasticity of the hinge piece 15, and stick to each other. Therefore, the engaging claw 16 can maintain the engaged state with the peripheral wall of the mounting opening 1 and can continue to maintain the temporarily assembled state.
[0030]
In the above state, the flange 6 is fastened and fixed with the screws 29 inserted into the screw holes 11 at the four corners. Next, after the filter 3 is fitted and mounted in the housing portion 5, the cover frame 20 is loaded into the housing portion 5, whereby the filter 3 is sandwiched and held between the rear surface of the cover frame 20 and the lattice body 9, and the cover flange 22 is in close contact with the flange 6. Thus, in the state where the cover 4 is attached to the main body case 2, as shown in FIG. 5, the total thickness of both flanges 6 and 22 only protrudes from the wall surface. Compared to the above, the protruding dimension of the cover 4 can be reduced.
[0031]
In the state where the cover 4 is assembled to the main body case 2, as shown in FIG. 6, the engaging claw 24 and the engaging step portion 25 provided between the two and 4 are engaged with each other. There is no separation. When exchanging the filter 3, the engaging claw 24 facing the opening 26 is disengaged to remove the entire cover 4 from the main body case 2, and after replacing the old and new filter 3, Refit. Although the ventilation gallery can be used alone, as shown in FIG. 11A, a plurality of ventilation galleries can be attached and used in an adjacent state.
[0032]
When forcedly ventilating the electrical equipment box, the fan unit 30 is mounted on the inner surface side of the main body case 2. As shown in FIG. 4, the fan unit 30 includes unit parts in which a flat motor 32 and an axial fan 33 are arranged inside a fan frame 31 that also serves as a wind guide tube, and mounting brackets at four corners of the fan frame 31. Are provided with screw holes 35 (see FIG. 5). The fan unit 30 can be integrated with the main body case 2 by screwing the screw 36 into the screw hole 35 through the screw hole 12 from the accommodating portion 5 side. When the fan unit 30 is not used together, it is not necessary to fasten and fix the flange 6 with the screw 29, and the mounting state of the main body case 2 only by the engaging force of the engaging claw 16 that engages with the peripheral wall of the mounting opening 1. Can continue to maintain.
[0033]
Example 2 FIGS. 7 and 8 show another example of the ventilation gallery of the present invention. Here, the point that the main body case 2 is constituted by a pair of left and right divided frames 2A and 2B in which the left and right centers of the flange 6 and the accommodating portion 5 are divided by a vertical dividing line is basically different from the previous embodiment. The pair of left and right divided frames 2A and 2B are the same component and have a point-symmetric relationship with each other. In the vicinity of the joining edge of each of the divided frames 2A and 2B, a pair of coupling bodies (case coupling bodies) 39 and 40 that are engaged with each other and couple the divided frames 2A and 2B to each other are formed.
[0034]
One connecting body 39 is composed of a round shaft integrally formed with the lattice frame 9, and the other connecting body 40 is composed of a U-shaped socket that engages with the previous round shaft. In each of the divided frames 2A and 2B, the round shaft-like connecting body 39 and the socket-like connecting body 40 are paired with each other, and the connection centers of the respective pairs coincide with each other. By linking, a refractable main body case 2 is obtained, and the main body case 2 can be attached to the mounting opening 1 with a single touch in the same manner as in the previous embodiment. Since others are the same as the previous embodiment, the same reference numerals are assigned to the same members, and descriptions thereof are omitted. The same applies to the following embodiments.
[0035]
Example 3 FIGS. 9 and 10 show another example of the cover 4. In this case, the cover 4 is composed of a pair of upper and lower divided frames (cover divided frames) 4A and 4B obtained by dividing the cover frame 20 and the cover flange 22 along a horizontal dividing line. A pair of connecting bodies (cover connecting bodies) 42 and 43 are formed on the joint edges of the upper and lower divided frames 4A and 4B to engage with each other and connect the divided frames 4A and 4B. One connecting body 42 is composed of a round shaft formed at the joining edge of the cover frame 20 on the upper half side, and the other connecting body 43 is composed of a U-shaped socket formed at the joining edge of the cover frame 20 on the lower half side. . On the upper and lower walls of the cover frame 20, a pair of left and right engaging legs 44 that are elastically deformable are formed.
[0036]
By engaging and connecting the connecting bodies 42 and 43, the refractable cover 4 can be obtained. Similarly to the previous embodiment, the cover 4 can be attached to the main body case 2 with one touch, and the engaging legs 44 in the attached state can be obtained. As shown in FIG. 10, it protrudes out of the case through a through hole 45 provided in the main body case 2 and engages with the peripheral wall of the mounting opening 1. Accordingly, as shown in FIG. 11 (b), when a plurality of ventilation galleries are attached to the left and right laterally long mounting openings 1, the engagement legs 44 engage with the peripheral wall of the mounting opening 1, whereby the cover 4 And the main body case 2 can be fixed inseparably.
[0037]
In the first embodiment, the left and right divided frames 2A and 2B are divided equally on the left and right, but this is not necessary, and the divided frames can be formed in an asymmetric shape, for example, one of the divided frames is formed larger than the other. Further, the dividing line may be any of vertical, horizontal and diagonal, and if necessary, the dividing line can be divided along a curved line or a waveform dividing line. The engaging claw 24 can be formed on the peripheral wall 8 side, and the claw free end can be opposed to the flange 6.
[0038]
In the divided frames 2A and 2B described in the second embodiment, hinge bosses are provided integrally with the lattice frame 9, and the hinge bosses adjacent to each other in the vertical direction can be connected with pins or shafts.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing how to attach a main body case.
FIG. 2 is an exploded perspective view of a ventilation gallery.
FIG. 3 is a front view of a main body case.
4 is a cross-sectional view taken along line AA in FIG.
FIG. 5 is a vertical side view of a ventilation gallery.
FIG. 6 is a cross-sectional view showing a cover fixing structure.
FIG. 7 is a front view showing another embodiment of the main body case.
FIG. 8 is a cross-sectional plan view showing a state in which connected bodies are connected to each other.
FIG. 9 is a longitudinal side view showing another embodiment of the cover.
FIG. 10 is a cross-sectional view showing a cover mounted state.
FIG. 11 is a front view showing an example of using a ventilation gallery.
[Explanation of symbols]
1 Mounting opening 2 Body case 2A / 2B case division frame (division frame)
3 Filter 4 Cover
4A / 4B Cover division frame (division frame)
5 receiving portion 6 flange 16 engaging claw (first engaging claw)
20 Cover frame 21 Louver wall 22 Bar flange 24 Engaging claw (second engaging claw)
25 Engagement step part 39/40 case connection body (connection body)
42/43 Cover assembly (connector)

Claims

A main body case (2) mounted in the mounting opening (1) on the wall surface, a filter (3) accommodated in the main body case (2), and a breathable cover (4) covering the front surface of the main body case (2); With
The main body case (2) includes a breathable housing part (5) for housing the filter (3), a flange (6) projecting from the opening periphery of the housing part (5), and a peripheral wall of the housing part (5). Provided with a first engaging claw (16) that engages with the peripheral wall of the mounting opening (1),
The main body case (2) has a pair of case division frames (2A, 2B) divided by a dividing line across the flange (6) and the housing portion (5), and the divided edges of the case division frames (2A, 2B). A ventilation gallery characterized by comprising a hinge piece (15) connecting the two.

Between the cover (4) and the body case (2), an elastically deformable second engaging claw (24) that engages with each other and maintains the mounted state of the cover (4), and an engaging step (25 ) And
The ventilation according to claim 1, wherein the engagement state between the second engagement claw (24) and the engagement step portion (25) can be released by operating the second engagement claw (24) from the outer surface of the cover (4). gallery.

A cover frame (20) in which the cover (4) is fitted in the housing part (5) of the main body case (2); a louver wall (21) that divides the inner surface of the cover frame (20) into a multi-stage; (20) and a cover flange (22) formed to protrude from the front peripheral edge,
The ventilation gallery according to claim 1 or 2, wherein the cover flange (22) circumscribes the flange (6) of the main body case (2) when the cover (4) is assembled to the main body case (2).

The cover (4) is composed of a pair of cover dividing frames (4A and 4B) formed individually,
The joining edges of each cover divided frames (4A-4B), there are formed engaging both covers division frames (4A-4B) if a pair of cover connecting member for refracting coupling the (42-43) with each other The ventilation gallery according to claim 1, 2 or 3.

A main body case (2) mounted in the mounting opening 1 on the wall surface, a filter (3) accommodated in the main body case (2), and a breathable cover (4) covering the front surface of the main body case (2). And
The main body case (2) includes a breathable housing part (5) for housing the filter (3), a flange (6) projecting from the opening periphery of the housing part (5), and a peripheral wall of the housing part (5). Provided with a first engaging claw (16) that engages with the peripheral wall of the mounting opening (1),
The main body case (2) is divided by a dividing line across the center of the flange (6) and the housing part (5), and is composed of a pair of case dividing frames (2A and 2B) that are point-symmetric with each other. ,
The joining edges of each case divided frames (2A, 2B), there are formed engaging both cases divided frames (2A, 2B) if a pair of casing coupling body refracting coupling the (39, 40) with each other A ventilation gallery characterized by that.

Between the cover (4) and the body case (2), an elastically deformable second engaging claw (24) that engages with each other and maintains the mounted state of the cover (4), and an engaging step (25 ) And
The ventilation according to claim 5, wherein the second engagement claw (24) can be operated from the outer surface of the cover (4) to release the engagement state between the second engagement claw (24) and the engagement step portion (25). gallery.

The cover (4) is composed of a pair of cover dividing frames (4A and 4B) formed individually,
The joining edges of each cover divided frames (4A-4B), there are formed engaging both covers division frames (4A-4B) if a pair of cover connecting member for refracting coupling the (42-43) with each other The ventilation gallery according to claim 5 or 6.