JP3724273B2

JP3724273B2 - Blower, blower system, blower method of blower system

Info

Publication number: JP3724273B2
Application number: JP26519199A
Authority: JP
Inventors: 靖之横手; 義巳岩村; 茂己小林; 仁菊地; 賢林; 丈治大島
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1999-09-20
Filing date: 1999-09-20
Publication date: 2005-12-07
Anticipated expiration: 2019-09-20
Also published as: JP2001082396A

Description

【０００１】
【発明の属する技術分野】
この発明は、建築物の開放された出入口に設置され、主として冷暖房時の建物内外の断熱を行うエアーカーテン等の技術に使用可能な送風機に関するもので、また、空気力学・騒音特性を向上させたプロペラファンを応用した非常に吹出し風速が早く、風量も多い送風機の技術に関するものである。
【０００２】
【従来の技術】
従来のこの種の送風機は商品名エアーカーテンと呼ばれ、ラインフローファンと呼ばれる横断流羽根で円形で軸方向に長い羽根を用い、吸込口と直角方向の位置に設けられた吹出口に送風するものである。
【０００３】
図１５は特開平６−３１３６０３号に示された従来の横断流羽根を用いた送風機の取付け状態図で回転軸方向から見た側断面図である。家屋の開放された出入口１０６の上部の出入口の上部壁面１０５の室内側に設置された送風機本体１０１は、その設置面側１０１ａと反対の側面に吸込口１０３と下面に吹出口１０４を有している。また、送風機本体１０１内には、風を吸込口１０３から吹出口１０４に送る横断流羽根１１３とこれを回転駆動する駆動モーター１１４が、横断流羽根１１３の外周部には風の流れを導くファンケーシング１１５が設けられている。さらに、吹出口１０４には吹出し風の方向を調整する複数枚の風向調整板１１６が上端部を支点として回動自在に支えられている。上記のように構成され、駆動モーター１１４の回転により横断流羽根１１３が回転すると、吸込口１０３から吸込まれた空気は横断流羽根１１３内を通過し、ファンケーシング１１５により吹出口１０４へと送風され、開放された出入口１０６の上方より下方へエアーカーテン流を形成するものである。なお、本図の取付け状態においては、天井面１０７と送風機本体１０１の吹出口１０４の反対面である送風機本体上面１０１ｂの間には吸込空間Ａ１１０があるが、送風機本体上面１０１ｂを天井面１０７に密着させ吸込空間Ａ１１０をなくした状態でも吸込口１０３は塞がれることがないため、送風作用に影響なく取付け可能である。
【０００４】
横断流羽根では、ファンケーシングの吸込口１０３と吹出口１０４は回転軸で対象位置となっており、横断流羽根１１３には吸込み流れと吹出し流れの両方が流れ、すなわちほぼ１８０°回転した時点で吸込み流れは吹出し流れとなり、結局横断流羽根の全周の約１／２しか仕事をしていないためファン効率がプロペラファンなどと比べ低く、本体１０１の外形寸法は横断流羽根の羽根外径寸法が小さいにも係わらずファンケーシングを有するためさほど小さくならない。ファンケーシングの吹出口１０４は横断流羽根の吹き出しのため幅寸法が少なく軸方向に長い形状のため、吹出し流れは風速が早いが風量は少ない流れとなる。このような風の流れにより、吹出し口の真下に人がいた場合には不快に感じ、さらには風量を確保するため、吹出し風速はますます高くなり床面部分でも風速が高く、床面の埃りを舞い上げたり、跳ね返りの風が他の人に当たる等の不快な状態が発生する。
【０００５】
上記の問題を解決するための送風機としては、特開平６−３１３６０３号に記載された送風機がある。この送風機はプロペラファンを複数個用い、その送風部を複数個並列に設けたものである。上記の送風機はプロペラファンを使用しているため、低騒音でファン効率が高いという特徴があるものの風の流れ方向すなわち吸込方向と吹出方向が軸方向であり、従来の横断流羽根タイプの直角方向ではない。
【０００６】
図１６は従来のプロペラファン式の送風機の製品構成を表わす側断面図で、３５は送風機１０１の外筐、１０３はこの外筐の上部に設けられた吸込口で、その吸込口には上端部が丸み３４を有した円筒形のベルマウス３０を樹脂の成形品で形成している。３６はモーター取付足で、回転軸にプロペラファン２が羽根固定ナット４２により固定された駆動モーター１を上記ベルマウス３０間に位置させるように固定している。なお、これらの駆動モーター１、プロペラファン２及びベルマウス３０からなる送風部は等間隔にて外筐３５に複数個並列に設けられている。１０４は外筐３５の下部に設けられた吹出口で、上記吸込口１０３と連通する構造にて吸込口１０３と同様に下端部が丸み３４を有して内側へ折曲され、その折曲部の先端がベルマウス３０の吹出側端部に接合され、外筐３５内壁全体に滑らかな風路３１を形成する。
【０００７】
３３はガイドで外筐３５の吹出口１０４の中央に設けられ、吸込口１０３側を頂点、吹出口１０４側を底辺とする断面が略三角形にて形成され、このガイドの各部は丸み３４が付けられ、吹出口１０４内に多層平行ノズル３２を形成する。
【０００８】
従来のプロペラファン式の送風機は風の流れ方向が軸方向で上方から下方であり、吸込口１０３と建物の天井面１０７との間に吸込空間Ａ１１０を確保する必要があり、送風機本体１０１を天井面１０７に密着し取付けることはできない。送風機本体１０１は出入口の上部壁面１０５の室内側に本体取付金具１０２部分で取付けられている。送風機を天井や壁面、床面に取り付ける場合、各面に密着する状態とはならない。
【０００９】
図１７は、従来のプロペラファン式の送風機の取付状態の側面図で、特に外風がある場合の状態である。左図（ａ）は、送風機本体１０１を風の吹出方向をほぼ真下にした場合で、すなわちプロペラファンの回転軸を垂直にした場合である。右図（ｂ）は、送風機本体１０１を斜めに傾け、風の吹出方向を建物の外方向すなわち外風側に傾けた場合である。左図（ａ）の取付け状態においては吹出し風は外風により、室内側（図中左側）に吹き込まれ外風が室内に入り込む。これに対し、右図（ｂ）の取付状態ではあらかじめ吹出し風は室外側（図中右側）に向けられているため、外風により室内に入り込む割合は軽減される。但し、このような取付け状態は本体取付金具１０２により送風機本体１０１の方向を傾ける必要があるため、一旦取付けた送風機本体１０１を外風がある場合は角度を付けて取付け直さなければならずまた、取付け状態は見た目には不自然となってしまう。
【００１０】
図１８は、従来のプロペラファン式の送風機の取付状態の側面図で、特に外風が強い場合の状態である。送風機本体１０１を斜めに傾けて取付けてあるが、送風機の吹出し風の力より外風の力が強いため、吹出し風は図１７の右図（ｂ）のようにはならず、室内側（図中左側）に吹き込まれ外風が室内に入り込んでしまう。
【００１１】
【発明が解決しようとする課題】
図１５のような横断流羽根を用いた送風機の場合、通風量が確保できずシール効果が十分でないと言う問題があった。また羽根はファン効率が３０％程度と低く、特に回転数で周波数が決定される回転音という耳障りな騒音が高いという問題があった。また、羽根は多翼ファンと呼ばれる小さな翼が多数枚（通常１２枚程度）あるもので、翼に埃りが付着しやすいことから、羽根の軸方向長さが長いということもあり、バランスが失われ振動が大きくなるといった問題があった。さらには羽根の着脱が複雑で清掃が困難であった。さらに、プロペラファンを使用する場合は、図１６−１８に示すように吸込口１０３と建物の間に空間を確保する必要があり、製品を天井面に密着し取付けることができないのでエアーカーテンなどに使う場合、使用個所に制限される等の問題があった。
【００１２】
また、プロペラファンの特徴である吹出し流れの旋回成分を完全に取り去ることができず、また、吹出口はノズル形で吹出面積が吸込面積に比べ小さくなっており圧力損失が発生し送風機のもつ静圧を吹出動圧に効率良く変更するまでには至っていない。この様に風速が確保しにくく、エアーカーテンとしての断熱などの性能が確保できないと言う問題があった。プロペラファンで風量および風速を確保しようとする技術として、特公平６−３５８８０号公報が知られているが性能確保のためスクロールケーシングを使用したり装置全体を傾けたりするなど構造が複雑になり、かつ、寸法が大きくなり取付個所の制限や性能を押さえる必要があるなどの問題があり、しかも、吹出し風が広がってしまいエアーシールに使えないと言う問題があった。さらには、複数個のプロペラファンを使用するため、製造コストの中で最も高いモーターを多数使用しなければならないという問題があった。
【００１３】
この発明は上述のような問題を解決するためになされたもので、吹出し風の方向と風速を確保して遠方まで送風できる信頼性の高い装置を得ることを目的とする。またこの発明は簡単な構造で一つの方向へ大きな風量と高い風速が得られる装置を得ることを目的とする。またこの発明は使い勝手が良く、高性能なエアーカーテン等の送風流を形成できるシステムや方法を得ることを目的とする。
【００１４】
【課題を解決するための手段】
請求項１記載の送風機は、駆動手段により回転駆動されて送風を行うプロペラファンと、このプロペラファンの周囲に設けられ送風を軸方向に導くとともに、プロペラファンの端部付近から外周方向に送風を導く風路形成手段と、この風路形成手段を一方の側壁とし、外周方向の送風を吹出す吹出口を設け、この吹出口に対向する面をプロペラファンと一定の距離を保つように半円形状とした側壁と接続されたファンケーシングと、このファンケーシング内に収納されプロペラファンの軸方向に所定間隔で前記プロペラファンと対向するように設けられ側壁との間に外周方向に送風を導くディフューザー風路を形成するプロペラファンの羽根の外径よりも大きな薄板状の風路部材と、を備え、この薄板状の風路部材と側壁と対向する面に設けた他方の側壁との間に前記ファンケーシングの外周近傍から前記ディフューザー風路よりの送風を導き吹出口より吹出させるものである。
【００１５】
請求項２記載の送風機の吹出口にファンケーシングの幅方向に複数枚の風向板を設けて幅方向に仕切り、吹出口から一つの方向に送風を行うを設けたものである。
【００１６】
請求項３記載の送風機の吹出口に、ファンケーシングの軸方向に複数枚の風向板を設けて軸方向に仕切り、かつ風向板を軸方向に回動可能としたとしたものである。
【００１７】
請求項４記載の送風機は、駆動手段により回転駆動されて送風を行うプロペラファンと、このプロペラファンの周囲に設けられこのプロペラファンに空気を導くとともに、プロペラファンの出口端部付近から外周方向に送風を導くファンケーシングの風路形成手段と、外周方向の送風をプロペラファンの回転軸にほぼ直交する一つの方向に吹出すファンケーシングの吹出口と、この吹出口に対向する面を前記プロペラファンの外周を覆うように半円形状とした側壁と接続されたファンケーシングの外周部と、ファンケーシングの外周部内に収納されプロペラファンの軸方向に所定間隔でプロペラファンと対向するように設けられ側壁との間に外周方向に送風を導くディフューザー風路を形成する薄板状の風路部材と、この薄板状の風路部材と側壁と対向する面に設けた他方の側壁との間にディフューザー風路からの外周方向の送風を導き吹出口より吹出させる背面通風路と、を備え、吹出口に複数枚の風向板を設け吹出口を仕切り一つの方向に送風を行うものである。
【００１８】
請求項５記載の送風機は、駆動手段により回転駆動されて送風を行うプロペラファンと、このプロペラファンの周囲に設けられ送風を軸方向に導くとともに、プロペラファンの端部付近から外周方向に送風を導く風路形成手段と、この風路形成手段を一方の側壁とし、外周方向の送風をプロペラファンの回転軸に直交する一つの方向に吹出す吹出口を設け、この吹出口を除く外周面を半円形状とした側壁と接続されたファンケーシングと、このファンケーシング内に収納されプロペラファンの軸方向に所定間隔でプロペラファンと対向するように設けられ側壁との間に外周方向に送風を導くディフューザー風路を形成する薄板状の風路部材と、を備え、吹出口の吹出し端部からプロペラファンの羽根の外径までの寸法がファンケーシングの半円形状外周面とプロペラファンの羽根の外径との間の寸法とほぼ同程度としたものである。
【００１９】
請求項６記載の送風機は、風路形成手段またはファンケーシングの少なくとも一部を発泡スチロール等にて一体成形したものである。
【００２０】
請求項７記載の送風機の、一体成形した風路形成手段の吸込みＲ部はプロペラファンの外周部を覆うすり鉢状にしたものである。
【００２１】
請求項８記載の送風機は、プロペラファンの羽根の外径寸法に対し、ファンケーシングの幅方向の大きさを１．４〜１．５倍にし、ファンケーシングをファンの回転軸を中心とした略半円形としたものである。
【００２２】
請求項９記載の送風機は、吹出口を一端とするファンケーシングの高さ方向の大きさを前記ファンケーシングの幅方向の寸法とほぼ同程度にしたものである。
【００２３】
請求項１０記載の送風機は、ファンケーシングの吹出口に隣接する壁面にもしくは吹出口を形成する壁面に第２の吹出風路及びこれを開閉する開閉ダンパーを備えたものである。
【００２４】
請求項１１記載の送風機は、遠心ディフューザー風路の出口に吸熱・発熱体を備えたものである。
【００２５】
請求項１２記載の送風機は、吹出口付近に吸熱・発熱体を備え、ファンケーシングの吹出口の隣接する壁面に第２の吹出風路を備え、かつこの吹出口の一部開口を塞いだものである。
【００２６】
請求項１３記載の送風システムは、プロペラファンの吸込口に対向する背面を合わせ、かつ吹出口を並べる方向で、送風機を連結させたものである。
【００２７】
請求項１４記載の送風システムは、プロペラファンの吸込口及び吹出口を隣合せにするように複数個並列に設け、複数の送風機からの送風流によりエアーカーテン流を形成させたものである。
【００２８】
請求項１５記載の送風システムは、プロペラファンの吸込口及び吹出口を隣合せにするように複数個並列に連結させ、この複数個連結させた物を二組設けそれぞれの組のプロペラファンの吸込口と反対の背面同志を合わせ、かつ吹出口を並べる方向で設けたものである。
【００２９】
請求項１６記載の送風システムの送風方法は、送風機の駆動手段により回転駆動されるプロペラファンが、吸込口からの軸方向の通風を、プロペラファンの端部付近からディフューザー風路により外周方向に送風するステップと、ディフューザー風路を収納する送風機のファンケーシングの一端に設けられた吹出口からプロペラファンの送風を吹出すステップと、プロペラファンの吸込口及び吹出口を隣合せにするように送風機を複数個並列に連結させた一組の複数の送風機からの吹き出しにより送風流を形成させるステップと、一組の複数の送風機から一定の距離を置いて他の一組の複数の送風機を配置しこの他の一組の吹出す他の方向への送風流を形成させるステップと、を備え、一方の組の吹出す送風を他方の組が吸込んで吹出す様に配置し吸込口と吹出口の通風方向に角度を設けることにより角度の異なる複数の面に連続した送風流を形成させるものである。
【００３０】
請求項１７記載の送風機は、吹出口に回動可能な風向板を設け前記風向板の角度を変えて、一つの方向に吹出す送風の方向を変えられるようにしたものである。
【００３１】
【発明の実施の形態】
実施の形態１．
図１は本発明の送風機の製品構成の側面図で、図２は化粧グリルを取外した状態の正面図である。２は駆動モーター１により回転駆動されて送風作用を行うプロペラファン、５はこのプロペラファン２に空気を導くためのベルマウスケーシング、このベルマウスケーシングの出口端に接続され、吸込側と吹出側を仕切る第２の風路部材４、１６は前記プロペラファン２の回転軸に直交する方向に吹出口１０４を有し、回転軸に直交する断面の外形が略半円形であるファンケーシング、３はこのファンケーシング１６内に上記プロペラファン２と所定間隔で対向するように設けられプロペラファンの外径より大きな寸法として通風ガイドの役割を果たす円板状の第１の風路部材、１５は送風機本体、１０３は一面が開口されその開口面であるファンの吸込口、１５ａはその反対面の本体背面、１１は本体背面１５ａのほぼ中央に駆動モーター１と第１の風路部材３を固定するモーター取付板、２２は駆動モーター１の回転軸１ａにはプロペラファン２が着脱自在に取付けられているファン固定ナット、９は第２の風路部材４とプロペラファン２の外径寸法より大きく構成され略平行に取付けられた円板状の第１の風路部材３との間で形成されるディフーザー風路、１０は遠心ディフューザー風路背面空間である。
【００３２】
第１の風路部材３の外周部にはこれより大きいファンケーシング１６が回転軸１ａを中心とする半円形で取付けられ、これと反対面に位置する本体側面にファンの吹出口１０４を設けている。なおファンケーシング全体はプロペラファン２の通風ガイドであるベルマウスケーシング５、側壁を形成する第２の風路部材４と本体背面１５ａ、ファンケーシング１６、吹出口１０４が本体１５に一体に結合されて形成し、さらに化粧グリル１４を含め本体１５を構成している。ファンの吸込口１０３には化粧グリル１４が着脱自在に、ファンの吹出口１０４には、スクロールケーシングの幅方向に複数枚の左右風向板(整流板)１７が吹出風路を幅方向に仕切るように取付けられている。
【００３３】
プロペラファン２により、化粧グリル１４、ファン吸込口１０３を通り吸込まれた空気はプロペラファンの回転により軸方向および径方向への力を受けるとともにベルマウスケーシング５、第２の風路部材４、第１の風路部材３により軸方向から径方向へ流れの速度エネルギーを無駄に棄てることなく静圧に変換して流すことが出来る。すなわち、ベルマウスケーシングから第１の風路部材までの外周方向への吹出空間で軸方向の流れを径方向の流れに変換している遠心ディフューザー風路９によりプロペラファンの大風量、低騒音、高効率の特徴を生かしたまま流れを９０°変更して、従来のプロペラファンの流れである軸方向通風に比べ圧力（静圧）を上げることが出来る。すなわち遠心ディフューザー風路により従来のプロペラファンで無駄に棄てられていた速度エネルギー分を静圧に変換することにより特性を向上させている。
【００３４】
遠心ディフューザー風路９から径方向へ流れの方向を変更された空気は、図２の下方側はそのまま送風機本体１５の左右の側面にガイドされファンの吹出口１０４から吹出される。すなわち下方向へプロペラファンの大きな風量と遠心ディフユーザー風路で変換された圧力による高い風速で吹出されるので遠方へ送風できる。しかも上方側への送風はファンケーシング１６に衝突し本体背面１５ａと第１の風路部材３の間に形成された遠心ディフューザー風路背面空間１０側にすなわち第１の風路部材３の外周部で約１８０°流れの向きを変え、遠心ディフューザー風路背面空間１０を通り吹出口１０４から吹出される。また図２に示されるように側面への送風も半円形状のファンケーシングや本体１５の側壁に衝突し本体背面１５ａと第１の風路部材３の間に形成された遠心ディフューザー風路背面空間１０側にすなわち第１の風路部材３の外周部で流れの向きを変え本体１５の下部全体に開口している吹出口１０４に集められ一定方向に大きな風量と高い風速で吹出す。すなわち、化粧グリル１４の前面から吸込まれた空気は流れ方向を９０°変更し、さらにスクロールケーシング１６により箱型本体側面の４面に向かう径方向の流れを箱型本体側面の１面に集め吹出す。
【００３５】
従来の巻き始めが存在し、吹出し口にかけて渦巻きを拡大させてスムーズに風を流そうとするスクロール型のケーシングでは風量を確保し騒音を低下させることは出来ても拡大した吹出口からの吹出す拡散された風は吹出口の位置により風速が大きく異なり遠方への送風は困難である。本発明のように半円形状のファンケーシングと第１の風路部材３間の遠心ディフューザー風路９から遠心ディフューザー風路背面空間１０への軸方向に送風される隙間は、すなわちファンケーシングと第１の風路部材３の間の隙間は上半分では同一であり、しかも下半分に行くほど本体側壁と第１の風路部材３の間の隙間が広がるためプロペラファンの送風は下方へ集中することになり、風の流れをファンを出てから拡散させることなく一定方向に集中させる構成により、風量、風速を保ったまま吹出すので大きな風量を遠方へ送風することが可能になる。さらにファンケーシング１６と本体１５の間にはケーシング背面空間２７が形成されるため、この空間を利用し電気部品であるコンデンサーや配線部品を収納できる。
しかもプロペラファンは遠心ファンであり、横断流ファンなど他の羽根に比べ羽根形状が簡単で軽量となり、複雑なファンケーシングも必要としないため構造が簡素な分だけ羽根負荷が小さく高速回転が可能になり、小型で風量を得ることができる。例えば大風量のラインフローファンに比べプロペラファンは同一風量に対し２倍の回転速度がとれるのでより小型化が可能になる。
【００３６】
図２において左右風向板１７は吹出風路を幅方向すなわち図の左右方向に仕切るように４枚取付けられている。前記吹出口１０４から吹出される風を遠方まで届かせるには吹出口１０４から吹出される風を整流し、吹出方向を同一方向にしさらに吹出風速も均一化する必要が有る。すなわち吹出口１０４から吹出される風が均一化していなければ互いに干渉し合うため遠方まで届かない。本試作品においては羽根外径φ２１０、本体外形□３００、吹出口大きさ３００×７５ｍｍでプロペラファンを回転数２２００ｒ／ｍで回転駆動した場合、風向板１７を設けることにより風速は約３０％向上する効果があった。なお本体外形のほぼ中央にプロペラファンが取り付けられ、ファンケーシング１６はこの本体に接する形で設けられるとともに、第１の風路部材３は図２では円形の薄板状でディフューザーを形成するようにファンの外径よりも大きく、また軸方向の通風路を確保する隙間を取るためファンケーシング径よりも小さい寸法としているが、風路部材３の下半部は角型の薄板形状であっても良い。但し本体の寸法、すなわちファンケーシングの半円の外径に比べ、プロペラファンの外径は出来るだけ大きくしないと風速が出ないことになる。上記試作品の例でファンの羽根外径φ１８０にしたところ風速が得られなくなった。これはファンから吹出口までの風路が長くなり本体内で圧力が低下したためであり、高い圧力を維持したまま吹出すようにファン径は本体に対し大きく取り、逆にいうと本体寸法はファン径に最小のディフューザー風路と軸方向通路を確保できる寸法とすることが望ましい。
【００３７】
実施の形態２．
図３、図４、図５は、本発明の送風機の別の製品構成の側面図である。図１図２と同一符号は同じ物を示す。一体ファンケーシング１９は図１の構成のベルマウスケーシング５と第２の風路部材４を発泡スチロールなどの断熱軽量材で一体成形している。また一体ファンケーシング２０は図１の構成のベルマウスケーシング５と第２の風路部材４及びファンケーシング１６を発泡スチロールなどの断熱軽量材で一体成形している。ファンの吹出口１０４には、風向板１７以外に、遠心ディフーザー風路９側に１枚、遠心ディフューザー風路背面空間１０側に１枚の合計２枚の前後風向板１８が設けられており吹出風路１０４を軸方向に仕切っている。前記前後風向板１８は軸方向に回動可能であり、図３においては方向は垂直であり吹出し風は軸方向に対し直角すなわち図面の真下方向である。図４は本体背面１５ａ側に傾いており吹出し風は真下ではなくやや本体背面１５ａ側に向いており、外風が有る場合の取付け状態を示している。一体ファンケーシングは発泡スチロールなどの断熱軽量材で一体成形したものであるため、部品の一体化と軽量化が同時に可能で、また本体５の筐体が薄板鋼板製の場合、一体ファンケーシングを本体内面に密着させるように構成すれば本体の強度アップが可能であることから更なる本体の薄板化が可能である。なお、この前後風向板１８の回動は風向板支点１８ａを支点としユーザーが手動で容易に行なえるものである。
【００３８】
図３の一体ファンケーシング１９の吸込みＲ部はプロペラファンの外周部を覆うすり鉢状にしたもので、すなわち、吸込部１９ａも吹出部１９ｂもその中間部も全て円形である。図１のベルマウス５の形状では、吸込口１０３から吸込まれる空気は本体１５の開口面が四方形であるためベルマウス５の部分で円形となり、吸込流れは四方形から円形へと変更されるため流れに偏りを生じるため、プロペラファン２が高速回転していることもあり、横断流ファンの場合と同様特に回転数で周波数が決定される回転音という耳障りな騒音が発生し易い。これに対し、一体ファンケーシング１９は吸込みＲ部はプロペラファンの外周部を覆うすり鉢状にしたため、吸込流れに偏りが生じにくいため回転音は発生し難い。
【００３９】
図１、２においてはプロペラファンの外径寸法に対し、ファンケーシングの幅方向の大きさを１．４〜１．５倍にしファンケーシングをファンの回転軸を中心とした略半円形としている。従来のプロペラファンを使用する送風機では特公平６−３５８８０号に示す通りプロペラファンの外径寸法に対し、スクロールケーシングの幅方向Ｗは約２倍である。スクロールケーシングをシロッコファンのように渦巻き形とした場合には羽根の回転方向が吸込側から見て右回転の場合、吹出口１０４の幅方向の吹出し風の風速は右側が早く左側が遅くなってしまう。また、羽根外径に対し流れをスムースに流すためスクロールの大きさが大きく、例えば標準のスクロール拡大率の場合は羽根外径がφ１８０の場合、スクロール外形が□３００となり、スクロール外形は羽根外径の１．６６倍となる。エアーカーテンとして使用する場合には前述したように一定方向への流れの吹出風速を均一化する必要が有る。このため同一回転数においては処理風量は多少少なくなるが高速回転させ吹出し風速を早める方法として、本発明ではファンケーシングを羽根外径の１．４〜１．５倍になるように羽根と同心円状になるように構成している。このようにすることで、ファンケーシングを含む本体外形が□３００に対し、羽根外径はφ２１０程度とすることが出来る。また、吹出口１０４からの幅方向の風速を均一化出来る。ファンケーシングを羽根外径の１．４〜１．５倍とすることは、第１の風路部材３は羽根外径の１．１５〜１．２倍が最適なことから、その外周部で遠心ディフーザー風路９から遠心ディフーザー風路背面空間１０への風路を考慮し１．４〜１．５倍としている。
【００４０】
図５は一体ファンケーシングを有する送風機の部品を分解したときの説明図を示す。本体１５に対しグリル１４を取り付けた前部から順番に分解し、また逆に奥側の部品から簡単に取り付けることが出来る。図５は、図３、４の送風機の部品構成を表わし、組立てを行なう場合を示す。先ず一面が開口された箱型の本体１５の本体背面１５ａのほぼ中央にモーター取付板１１をスポット溶接またはねじ固定等により固定する。次に駆動モーター１をモーター取付板１１にモーター固定ネジ２３により固定する。この際、第１の風路部材３もモーター取付板１１に共締めする。一体ケーシング２０をファン吸込口１０３より挿入する。本例の場合は一体ケーシング２０はベルマウスケーシング２０ａと第２の風路部材２０ｂとファンケーシング２０ｃの３部品を発泡スチロール等にて一体成形したものである。前記説明は一体ファンケーシング２０の場合を説明したが、一体ファンケーシング１９の場合は、ファンケーシング１９を挿入する前に薄板鋼板等で形成したファンケーシング１６を本体１５に固定しておく。一体ファンケーシング１９を挿入する際は、吹出側端部１９ｂと第１の風路部材３は所定の間隔を有するように例えば本体１５にストッパーなどの機能を設けておく。同じくファン吸込口１０３よりプロペラファン２を駆動モーター１の回転軸１ａに羽根固定ナット２２にて固定する。最後に化粧グリルを本体の開口部に取付ける。
【００４１】
この送風機のプロペラファン２に付着した埃を取り去る等のメンテナンスをする場合、先ず、本体１５の吸込口１０３に取付けられた化粧グリル１４を取り外す。次に羽根固定ナット２２を取り外し、最後にプロペラファン２を駆動モーター１の回転軸１ａから取り外す。このように本送風機の構成では製品を取付状態で容易にファンの清掃が可能である。また、プロペラファンは多翼ファンである横断流ファンに比べ埃りが付着しにくく、埃りの付着も羽根前面に均一なため、横断流ファンの場合のように軸方向の埃り付着量の不均一もないことから、メンテナンスも容易である。この送風機を建物に取り付ける場合はメインテナンスをする場合と同様に先ず化粧グリル１４を取り外し、次にプロペラファン２を取り外し、この状態で第１の風路部材３に設けられた送風機の状態には影響を与えない取付穴から木ねじなど壁取り付け用取付部材を挿入し、この取付穴に対向する面の本体背面１５ａに設けられた本体固定用穴を使用し、送風機本体を壁面に固定すれば良い。あるいは本体側面１５ｂのベルマウスケーシング５の位置しない個所に木ねじなどの天井取り付け用取付部材が固定できる本体固定用穴を設けておき、化粧グリル１４を取り外した状態で天井面１０７に直接固定することも出来る。この様に直接本体を壁面や天井面に簡単かつ確実に固定でき、本体取付用の金具などが不要となり安価で軽量な取付が可能となる。
【００４２】
実施の形態３．
図６は、複数の送風機を室内の離れた位置に配置して取付けた状態の側面図である。図中、右側は並列に連続し並べた複数の送風機によりエアーカーテンとして機能させる通常の取付け状態図で、１０１は送風機本体、１０３は吸込口、１０４は吹出口、１０５は出入口の上部壁面、１０６は開放された出入口、１０７は天井面、１０８は床面、１０９は開口のない壁面である。風の流れ方向は、下方に配置した送風機の吸込口１０３から吸込み、吹出口１０４すなわち左側の下方で吸い込みから直角への吹き出しとし、この吹出した送風を天井面に取り付けた送風機の吸込み風としている。天井の送風機からの吹出しは出入口１０６に設けたエアーカーテン用送風機へ室内循環風として送風される。エアーカーテン用送風機の取付は送風機本体１０１の吸込口１０３と反対の本体側面ａ１０１ａを出入口の上部壁面１０５に面するようにさらに建物の天井面１０７に面する側は送風機本体１０１の吹出口１０４と反対の本体側面ｂ１０１ｂのため、送風機本体１０１を天井面１０７に密着し取付けることが出来る。図中、左上側はエアー搬送（サーキュレーター）としての通常の取付け状態図で、室内天井部の空気を左側から右側に送風する場合を示す。この場合は吸込口１０３は下側となり建物の壁面１０９側は本体側面ｂ１０１ｂのため、建物の天井面１０７側は本体側面ａ１０１ａのため、送風機本体１０１を壁面１０９と天井面１０７の両方に密着し取付けることが出来る。さらには送風機の上下方向の寸法はプロペラファンの羽根の軸方向寸法で決定されるため薄型に構成出来、天井面からの突出寸法を抑える事が出来、天井面にフィットする状態となる。図中、左下側はサーキュレーターとしての通常の取付け状態図で、この場合も建物の床面１０８側は本体側面ｂ１０１ｂ、建物の壁面１０９側は本体側面ａ１０１ａのため、送風機本体１０１を床面１０８と壁面１０９の両方に密着し取り付けることが出来、床面に設置する状態となる。なおこの説明では室内の壁面を循環させる構成を説明したが部屋と部屋の間の仕切り部に設ければ特定の部屋をエアーカーテンで断熱することが出来る。また天井面に取り付ける構成を示したが、高い空間を有する大空間に対し冷暖房の不要な上層の空間を循環する送風で仕切り、エネルギー効率を向上させることも可能である。また出入口が平面的な形でなく入り組んだ形状をしていても、この循環送風によるエアーカーテンを横向きに使用すれば二つや三つの入り口の面を連続した循環送風でシールしたり、屋外に面する入り口が室内内部に引っ込んでいる様な形状等の複雑な面に対しても連続した送風の流れでシールを行うことが出来る。
【００４３】
図７は、エアーカーテン用の送風機の取付状態の側面図で、特に外風がある場合の状態である。左図（ａ）は、送風機本体１０１を図３と同様、風の吹出方向をほぼ真下にした場合で、すなわち吹出口に設けられた風向板を垂直にした場合かあるいは取付けない場合である。右図（ｂ）は、送風機本体１０１の取付けは同様であるが、風向板を建物の外方向すなわち外風側に傾けた場合である。左図（ａ）の取付け状態においては吹出し風は外風により、室内側（図中左側）に吹込まれ外風が室内に入り込む。これに対し、右図（ｂ）の取付け状態ではあらかじめ吹出し風は室外側（図中右側）に向けられているため、外風により室内に入り込む割合は軽減される。このような取付状態は吹出口に設けられた風向板２１を傾けるだけの容易な動作で可能で、送風機本体を取付けた後にユーザーが外風がある場合に変更すれば良く製品取付け状態も不自然とならない。この様に本体の設置方向を変更することなく吹出方向を変更でき外風対策が簡単に行える。図６および図７の送風機は、プロペラファンの吸込口及び吹出口を隣合せにするように複数個並列に連結させ、複数の送風機からの送風流によりエアーカーテンを形成させており、吹出口１０４は送風機本体１０１のファンケーシングに相当する下端部全体から風を吹出し、かつこの吹出口を連続して配置しているため、平面全体を通風流で覆うことが出来る。しかもプロペラファンから遠心ディフューザー風路を通し風量、風速を確保したまま、ファンとの隙間の小さいファンケーシングにより一定風速に吹出す送風によりシールが確実なエアーカーテンを形成させている。
【００４４】
図８は、送風機を組み合わせて取り付けた取付状態の側面図で、特に外風が強い場合や出入口の開口高さが高い場合の状態である。２つの送風機本体１０１の本体側面１０１ａ側を双方密着させて、二つの吹出口１０４が隣り合せになる状態で設置している。吹出し風の軸方向寸法は約２倍となり、風の吹出しの力も約２倍の力となり外風の力が強いものの、吹出し風は外風により室内に入り込むのが軽減される。なお室内に面して配置された送風機は室内から空気を吸込み、室外に面して配置された送風機は室外から空気を吸込んでいる。出入口の開口高さに応じて、送風機本体１０１は吹出口１０４と反対の本体側面１０１ｂを出入口の上部壁面１０５の下部端面に面するように設置されている。特にこの構成では天井に一連の送風機の構成を配置して、室内の中をエアーカーテンで仕切り暖房冷房が必要な個所とそれ以外を分けたり、喫煙部などを分けたり、逆に正常に保つ部分を仕切り壁なしに区分けすることができる。
【００４５】
実施の形態４．
図９は本発明の別の送風機の化粧グリルを取外した状態の正面図、図１０は吹出口１０４側から見た底面図である。上記で説明した図と同一符号は同じ物を示す。２１は吹出口１０４に設けられた吸熱・発熱体である。風速が最も高い場所に吸熱・発熱体２１を位置させたため熱交換効率が良いだけでなく、例えばこの吸熱・発熱体を直径が細長い棒状のシーズヒーターなどにすると送風に対し有効に熱交換が出来、吹出風への影響も細長い棒状のため少ない。また遠心ディフューザー風路９の軸方向のほぼ中央部と遠心ディフューザー風路背面空間１０の軸方向のほぼ中央に位置するようにシーズヒーターをＵ字形にし取付ければその全長は長くなり先端の端子部分２１ａに通電することで1本のヒーターで大容量化が可能で、しかも熱交換についてはシーズヒーター外周部を通過する風量が多いため、大容量の熱交換が可能になる。なお風向板１７はシーズヒータが存在する部分の近傍で風向板を切り欠くことにより熱の影響を防ぐことが出来る。これにより、ヒーター容量の大きな暖房機能付エアーカーテンが構成出来、冬場の補助暖房としても有効に使用出来る。
【００４６】
図９の２４は箱型本体１５のスクロールケーシング１６がない吹出口１０４の隣接する側面に設けられた開口可能な第２の吹出風路である。２５はこの部分に設けられ開閉を行う開閉式ダンパーである。２６は吹出塞ぎ部であり、吸熱・発熱体２１が備えられた投影面の吹出口の開口であって、第２の吹出風路２４に隣接した吹出口１０４の一部を塞いでいる。これにより、第２の吹出風路２４から吹出される空気の一部は吸熱・発熱体２１により熱交換したものとなる。
このようにすれば、この送風機を１台でエアーカーテン以外の用途で例えば洗面所に取付け扇風機の代りとして、すなわち、涼風送風機として使用し、冬場は補助暖房として更には、第２の吹出風路２４から吹出される温風を鏡のくもり止めなどに使用できる。
【００４７】
実施例５．
図１１は別の送風機の製品構成の斜視図である。他の図面と同一符号は同じ物を示す。送風機本体１５のファンの吸込口１０３及び吹出口１０４を隣合せにするように送風機を３個並列に連結させている。特開平６−３１３６０３号の送風機と同様、建物の開放された出入口１０６の間口寸法に合せ送風機の連結数を決定する。ここで、送風機１５の大きさは羽根外径φ２１０に対し幅寸法Ａは３００ｍｍ、高さ寸法Ｂは３００ｍｍ、奥行き寸法Ｃは１８０ｍｍである。これに対し従来のプロペラファン式の送風機では羽根外径φ１５５に対し幅寸法Ａは１８０ｍｍ、高さ寸法Ｂは２２０ｍｍ、奥行き寸法Ｃは本体取付金具１０２も含め２４５ｍｍであり、本体取付金具寸法は３５ｍｍである。送風機の大きさを変更した場合の風量比は、回転数が同一の場合は羽根外径比の３乗となるため（１８０／１５５）³＝１．６倍となり、送風機の台数は１／１．６台となる。また、送風機の幅寸法Ａは約１．５倍となることから、例えば間口９００ｍｍ用の送風機では送風機本体は３台、すなわち駆動モーターは３台必要であるのに対し、従来品では送風機本体は５台、すなわち駆動モーターは５台必要である。このことから、本実施例の送風機は製造コストの中で最も高い駆動モーターの使用数量を削減でき、製造コストを安価に出来る。
【００４８】
設置体積を比較すれば、従来のプロペラファン式の送風機では吸込空間Ａ１１０を確保する必要がある。図１６−１８において吸込空間Ａ１１０の高さ寸法は１５０ｍｍ必要であることから、幅寸法を同一にした場合、実施例は高さ３００×奥行き１８０で従来品は高さ（２２０＋１５０）×奥行き２４５であるため、本実施例の送風機の設置体積は従来品に比べわずか６０％で良いことになる。
【００４９】
図１２は図８で説明した送風機を組み合わせた製品構成の斜視図である。同一符号は同じ物を示す。図８と図１２はファンの吸込口１０３と反対の面である本体背面１５を合わせ、かつ吹出口１０４を縦方向（回転軸方向）にならべる方向で、送風機を一対連結させたもので、図１２ではさらにファンの吸込口１０３及び吹出口１０４を隣合せにするように送風機を３個並列に連結させた物同士をファンの吸込口と反対の背面を合わせ、かつ吹出口を縦方向にならべる方向で、送風機を連結させたもので、すなわち図１１の送風機を一対本体背面１０１ａを合わせるように連結したものである。吹出口１０４から吹出される風の軸方向寸法は２倍となり風量も２倍となる。前述したように、特に外風が強い場合などに外風遮断能力の向上に効果を発揮する。
【００５０】
上記の説明では屋外への出入口に対する平面状のエアーシールの説明をしてきたが、最近のような気密性の高いビルや、内部で清浄性が求められる工場や病院などがある。このような個所では屋外との間だけでなく、部屋の中の特定個所や廊下などに空気の仕切りを求められることが多い。このようなケースに対し、送風システムとしてその送風方法で、送風機の駆動手段であるモーターにより回転駆動されるプロペラファンが、吸込口からの軸方向の通風を、プロペラファンの端部付近からディフューザー風路により外周方向に送風させることにより風量が多く圧力の高い風を低い騒音で送風できる。この送風をディフューザー風路を収納する送風機のファンケーシングの一端に設けられた吹出口からプロペラファンの送風を軸方向とほぼ直角の一つの方向に吹出すことにより遠方まで送風が可能になる。このような送風機をプロペラファンの吸込口及び吹出口を隣合せにして複数個並列に連結させた一組の複数の送風機からの吹出しにより送風流を形成させ強力なエアーカーテン流、すなわち空気の仕切りを得る事が出来る。さらに、このような一組の複数の送風機から距離を置いて他の一組の複数の送風機を配置しこの他の一組の吹出す他の一つの方向への他の送風流を形成させ、この組み合わせを二つだけでなく更に多く設けると、送風機の組から別の送風機の組への循環風が連続して複数の面として形成でき、しかも吸込みと吹出しの向きに角度を付けたシステムが得られる。
【００５１】
このシステムだけまたはこのシステムと壁面などとの組み合わせにより室内や廊下などに通行は可能であるが内部の空気の質を閉じ込める閉空間を形成することが出来、さらに換気ファンや冷房や空気清浄用等の空調機と組み合わせる事により汚れた空気を閉じ込め排気したり、逆に清浄に保つなどの多様な目的に対応できる送風の流れによるシステムを得ることができる。なお、吹出口に回動可能な風向板を設け前記風向板の角度を変えて、一つの方向に吹出す送風の方向を軸方向と直角の方向から変えられるようにすることにより一層複雑な構成のシステムも可能になる。
【００５２】
上記のようにこの発明では送風機の箱体外形に比べ出来るだけ羽根の径を大きく取るようにしている。これは回転数が同一の場合には羽根の外径比の３乗で風量が増えるためで、そのため送風を集中させて吹出させるようにディフューザー風路および半円形のファンケーシングを設け風量や風速を落とさずに遠方への送風を可能にする。さらにプロペラファンの羽根の中にモーターを収納するファンのボス構成により薄型の送風機とすることが出来る。これに加え薄いディフューザー風路と同程度の厚みによるディフューザー背面空間により送風機の軸方向は大幅に短縮された構造になる。さらに箱体の外形で吹出方向の高さに対してもプロペラファンの軸をほぼ中心に位置させ羽根外径からの吹出口の吹出方向高さを反対側の羽根外径とファンケーシングとの間の寸法程度にしている。これはディフューザー風路およびディフューザー背面空間の風路により風向に対する指向性が得られているので吹出口に長いガイドを取り付ける必要がなく、このことからも高さ方向の寸法を抑えることが出来、天井と送風機本体との間に吸込みのための空間を設ける必要性が無いこととあいまって、設置体積の小さいスペースファクターの良い装置が得られる。
【００５３】
またこの発明の送風機は、モーターにより回転駆動されて送風作用を行うプロペラファン、このプロペラファンに空気を導くためのベルマウスケーシング、このベルマウスケーシングの出口端に接続され、プロペラファンの回転軸に直交する方向に吹出口を有し、回転軸に直交する断面の外形が略半円形であるファンケーシング、このファンケーシング内に上記プロペラファンと所定間隔で対向するように設けられた円板状の風路部材により構成され、ファンの吹出口に、ファンケーシングの幅方向に複数枚の左右風向板である整流板を設けたため、簡単な構造変更だけで空気力学・騒音特性を向上させた新規のプロペラファンを応用し、取付制約が少なく設置体積が小さいコンパクトで低騒音、高効率のエアーカーテンを構成できる。すなわちこの結果外風遮断能力の高いエアーカーテンとすることが出来る。また、羽根の前面に設けられている化粧グリルを取外し、羽根固定ナットを外すだけで、羽根を着脱でき、羽根の清掃も容易である。また、従来の複数個プロペラファンを使用する送風機に比べプロペラファンを大型にし、使用個数を少なくし製造コストを削減できる。またこの発明の説明では発泡スチロール等の軽量材を使用し組み立てが簡単に行える構造を説明したが、ファンの羽根のような回転体を含めマグネシウム合金のチクソモールド製品を採用するとリサイクルに効果的である。これは軽量の上強度が得られるとともに製造途中での廃材の利用や使用後廃却された後での利用が簡単になり、ごみとして棄てることがなくなり地球環境対策になる。
【００５４】
【発明の効果】
請求項１に関する発明によれば、駆動手段により回転駆動されて送風を行うプロペラファンと、このプロペラファンの周囲に設けられ送風を軸方向に導くとともに、プロペラファンの端部付近から外周方向に送風を導く風路形成手段と、この風路形成手段を一方の側壁とし、外周方向の送風を吹出す吹出口を設け、この吹出口に対向する面をプロペラファンと一定の距離を保つように半円形状とした側壁と接続されたファンケーシングと、このファンケーシング内に収納されプロペラファンの軸方向に所定間隔で前記プロペラファンと対向するように設けられ側壁との間に外周方向に送風を導くディフューザー風路を形成するプロペラファンの羽根の外径よりも大きな薄板状の風路部材と、を備え、この薄板状の風路部材と側壁と対向する面に設けた他方の側壁との間に前記ファンケーシングの外周近傍から前記ディフューザー風路よりの送風を導き吹出口より吹出させる様にしたので、簡単な構造で設置体積が小さくコンパクトで、かつ、低騒音、高効率で大風量を送風できる送風機が得られる。
【００５５】
請求項２に関する発明によれば、吹出口に、ファンケーシングの幅方向に複数枚の風向板を設け幅方向に仕切り、吹出口から一つの方向に送風を行うので、吹出口からの風速が吹出し口の位置による大きな差がなくなり遠方へ送風できる送風機が得られる。
【００５６】
請求項３に関する発明によれば、吹出口に、ファンケーシングの軸方向に複数枚の風向板を設けて軸方向に仕切り、かつ風向板を軸方向に回動可能にしたので、本体の取付角度を変更することなく容易に風向を変更することができ、外風がある場合等の対応が容易となる。
【００５７】
請求項４に関する発明によれば、駆動手段により回転駆動されて送風を行うプロペラファンと、このプロペラファンの周囲に設けられこのプロペラファンに空気を導くとともに、プロペラファンの出口端部付近から外周方向に送風を導くファンケーシングの風路形成手段と、外周方向の送風をプロペラファンの回転軸にほぼ直交する一つの方向に吹出す様に設けられたファンケーシングの吹出口と、この吹出口に対向する面を前記プロペラファン外周を覆うように半円形状とした側壁と接続されたファンケーシングの外周部と、ファンケーシングの外周部内に収納されプロペラファンの軸方向に所定間隔でプロペラファンと対向するように設けられ側壁との間に外周方向に送風を導くディフューザー風路を形成する薄板状の風路部材と、この薄板状の風路部材と側壁と対向する面に設けた他方の側壁との間にディフューザー風路からの外周方向の送風を導き吹出口より吹出させる背面通風路と、を備え、吹出口に複数枚の風向板を設け吹出口を仕切り一つの方向に送風を行うので、簡単な構造で一つの方向へ大量の空気を遠方へ送風できる送風機が得られる。
【００５８】
請求項５に関する発明によれば、駆動手段により回転駆動されて送風を行うプロペラファンと、このプロペラファンの周囲に設けられ送風を軸方向に導くとともに、プロペラファンの端部付近から外周方向に送風を導く風路形成手段と、この風路形成手段を一方の側壁とし、外周方向の送風をプロペラファンの回転軸に直交する一つの方向に吹出す吹出口を設け、この吹出口を除く外周面を半円形状とした側壁と接続されたファンケーシングと、このファンケーシング内に収納されプロペラファンの軸方向に所定間隔でプロペラファンと対向するように設けられ側壁との間に外周方向に送風を導くディフューザー風路を形成する薄板状の風路部材と、を備え、吹出口の吹出し端部からプロペラファンの羽根の外径までの寸法がファンケーシングの半円形状外周面とプロペラファンの羽根の外径との間の寸法とほぼ同程度としたので、吹出方向の寸法が小さく、吸込みと吹出しの方向を変化させて取付の制約がなく、使い勝手が良い小型の送風機が得られる。
【００５９】
請求項６に関する発明によれば、風路形成手段またはファンケーシングの少なくとも一部を発泡スチロール等にて一体成形したので、更なる部品の一体化が可能で組立性の良い送風機が構成できる。
【００６０】
請求項７に関する発明によれば、一体成形した風路形成手段の吸込みＲ部はプロペラファンの外周部を覆うすり鉢状にしたので、吸込流れに偏りを生じにくいため、回転音の様な耳障りな騒音の発生を押さえることが出来る。
【００６１】
請求項８に関する発明によれば、プロペラファンの羽根の外径寸法に対し、ファンケーシングの幅方向の大きさを１．４〜１．５倍にし、ファンケーシングをファンの回転軸を中心とした略半円形としたので、吹出口からの幅方向の風速を均一化出来るとともに装置全体をコンパクト化できる。
【００６２】
請求項９に関する発明によれば、プロペラファンの羽根の外径寸法に対し、吹出口を一端とするファンケーシングの高さ方向の大きさをファンケーシングの幅方向の寸法とほぼ同程度としたので、箱体外形がほぼ正方形となり吸込みと吹出しの風向に角度があることとあいまって天井面や壁面などへの取付の制約がなくなりかつ配置がし易いコンパクトな送風機が得られる。
【００６３】
請求項１０に関する発明によれば、ファンケーシングの吹出口に隣接する壁面にもしくは吹出口を形成する壁面に第２の吹出風路及びこれを開閉する開閉ダンパーを備えたので、この送風機を例えば洗面所に取付け涼風送風機として使用する際、第２の吹出風路から吹出される風を鏡のくもり止めなどに使用できる等複数の用途に適用できる送風機が得られる。
【００６４】
請求項１１に関する発明によれば、遠心ディフューザー風路の出口に吸熱・発熱体を備えたので、風速が最も高い場所に位置させたため熱交換効率が良いだけでなく、ヒーターの大容量化が可能で、ヒーター容量の大きな暖房機能付エアーカーテンが構成出来、冬場の補助暖房等としても有効に使用出来る。
【００６５】
請求項１２に関する発明によれば、吹出口付近に吸熱・発熱体を備え、ファンケーシングの吹出口の隣接する壁面に第２の吹出風路を備え、かつこの近傍の吹出口の一部開口を塞いだので、この送風機の第２の吹出風路から吹出される温風を鏡のくもり止めなど別の用途に有効に利用できる。
【００６６】
請求項１３に関する発明によれば、プロペラファンの吸込口に対抗する背面を合わせ、かつ吹出口を並べる方向で、送風機を連結させたため、吹出口から吹出される風の軸方向寸法は倍となり風量も倍で、外風の遮断能力を非常に向上できる送風システムが得られる。
【００６７】
請求項１４に関する発明によれば、プロペラファンの吸込口及び吹出口を隣合せにするように送風機を複数個並列に設け、複数の送風機からの送風流によりエアーカーテン流を形成させので、建物の間口寸法に送風機の幅寸法を合わす場合、従来品に比べ駆動モーターの使用数量を削減でき、製造コストを安価に出来、設置体積も少なく出来るシール効果の大きな送風システムが得られる。
【００６８】
請求項１５に関する発明によれば、プロペラファンの吸込口及び吹出口を隣合せにするように複数個並列に連結させこの複数個連結させたものを二組設けそれぞれの組のプロペラファンの吸込口と反対の背面同志を合わせ、かつ吹出口を並べる方向に設けたので、吹出口から吹出される風の軸方向寸法は倍となり風量も倍となり、特に外風が強い場合の外風遮断能力等のように他の影響に対する能力を向上させる送風システムが得られる。
【００６９】
請求項１６に関する発明によれば、送風機の駆動手段により回転駆動されるプロペラファンが、吸込口からの軸方向の通風を、プロペラファンの端部付近からディフューザー風路により外周方向に送風するステップと、ディフューザー風路を収納する送風機のファンケーシングの一端に設けられた吹出口からプロペラファンの送風を吹出すステップと、プロペラファンの吸込口及び吹出口を隣合せにするように送風機を複数個並列に連結させた一組の複数の送風機からの吹出しにより送風流を形成させるステップと、一組の複数の送風機から一定の距離を置いて他の一組の複数の送風機を配置しこの他の一組の吹出す他の一つの方向への他の送風流を形成させるステップと、を備え、一方の組の吹出す送風を他方の組が吸込んで吹出す様に配置し吸込口と吹出口通風方向に角度を設けることにより角度の異なる複数の面に連続した送風流を形成させるので、エアーカーテンで閉空間を設けるなど多様な用途にも適用できる使い勝手の良い送風システムの送風方法が得られる。
【００７０】
請求項１７に関する発明によれば、吹出口に回動可能な風向板を設け風向板の角度を変えて、一つの方向に吹出す送風の方向を変えられるようにしたので、複雑な構成にも適用できる送風システムの送風方法が得られる。
【図面の簡単な説明】
【図１】この発明の一実施の形態による送風機の側断面図である。
【図２】この発明の一実施の形態による送風機の化粧グリルを取外した状態の正面図である。
【図３】この発明の他の実施の形態による送風機の側断面図である。
【図４】この発明の他の実施の形態による送風機の側断面図である。
【図５】この発明の他の実施の形態による送風機の組立て説明を行う側断面図である。
【図６】この発明の一実施の形態による送風機の取付説明図である。
【図７】この発明の一実施の形態による送風機の取付説明図である。
【図８】この発明の一実施の形態による送風機の取付説明図である。
【図９】この発明の他の実施の形態による送風機の化粧グリルを取外した状態の正面図である。
【図１０】この発明の他の実施の形態による送風機の底面図である。
【図１１】この発明の他の実施の形態による送風機の取付説明図である。
【図１２】この発明の他の実施の形態による送風機の取付説明図である。
【図１３】この発明の他の実施の形態による送風機の底面図である。
【図１４】この発明の他の実施の形態による送風機の説明図である。
【図１５】従来の送風機の側断面図である。
【図１６】従来の送風機の側断面図である。
【図１７】従来の送風機の取付説明図である。
【図１８】従来の送風機の取付説明図である。
【符号の説明】
１駆動モーター、２プロペラファン、３第１の風路部材、４第２の風路部材、５ベルマウスケーシング、９遠心ディフューザー風路、１０遠心ディフューザー風路背面空間、１１モーター取付板、１４化粧グリル、１５本体、１６ファンケーシング、１７左右風向板、１８前後風向板、１９一体ケーシング、２０一体ケーシング、２１吸熱・発熱体、２２羽根固定ナット、２３モーター固定ネジ、２４第２の吹出口、２５開閉ダンパー、２６吹出し塞ぎ部、２７スクロールケーシング背面空間、３０ベルマウス、３１滑らかな風路、３２多層平行ノズル、３３ガイド、３４丸み、３５送風機の筐体、３６モーター取付板、１０１送風機本体、１０２本体取付金具、１０３吸込口、１０４吹出口、１０５出入口の上部壁面、１０６開放された出入口、１０７天井面、１０８床面、１０９開口のない壁面、１１０吸込空間、１１３横断流ファン、１１４駆動モーター、１１５ファンケーシング、１１６風向板。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a blower that is installed at an open doorway of a building and can be used for a technique such as an air curtain that mainly insulates the inside and outside of a building during cooling and heating, and has improved aerodynamics and noise characteristics. The present invention relates to a blower technology using a propeller fan that has a very high blowing speed and a large air volume.
[0002]
[Prior art]
A conventional blower of this type is called a brand name air curtain, and is a transverse flow blade called a line flow fan, using circular and long blades in the axial direction, and blows air to a blower outlet provided at a position perpendicular to the suction port. Is.
[0003]
FIG. 15 is a side sectional view seen from the direction of the rotation axis in a state of attachment of a blower using a conventional transverse flow blade disclosed in Japanese Patent Laid-Open No. 6-313603. The blower main body 101 installed on the indoor side of the upper wall surface 105 of the entrance at the upper part of the entrance 106 opened in the house has a suction port 103 on the side opposite to the installation surface side 101a and an outlet 104 on the lower surface. Yes. Further, in the blower main body 101, there are a transverse flow blade 113 that sends wind from the suction port 103 to the blowout port 104 and a drive motor 114 that rotationally drives the fan, and a fan that guides the flow of wind to the outer peripheral portion of the crossflow blade 113. A casing 115 is provided. Further, a plurality of wind direction adjusting plates 116 for adjusting the direction of the blowing air are supported at the air outlet 104 so as to be rotatable about the upper end portion. When the cross flow vane 113 is rotated by the rotation of the drive motor 114 configured as described above, the air sucked from the suction port 103 passes through the cross flow vane 113 and is blown to the blowout port 104 by the fan casing 115. The air curtain flow is formed from above the opened entrance 106 to below. In the attached state of this figure, there is a suction space A110 between the ceiling surface 107 and the blower body upper surface 101b, which is the opposite surface of the blower outlet 104 of the blower body 101, but the blower body upper surface 101b is placed on the ceiling surface 107. Since the suction port 103 is not blocked even in the state where the suction space A110 is closed, it can be mounted without affecting the blowing action.
[0004]
In the crossflow blade, the suction opening 103 and the blowout port 104 of the fan casing are the target positions on the rotation axis, and both the suction flow and the blowout flow flow through the crossflow blade 113, that is, when the rotation is almost 180 °. The suction flow is a blow-off flow, and after all, only about half of the entire circumference of the cross flow blade is working, so the fan efficiency is lower than that of a propeller fan, etc., and the external dimensions of the main body 101 are the blade outer diameter of the cross flow blade. Although it is small, it is not so small because it has a fan casing. Since the blowout port 104 of the fan casing has a small width dimension and a long shape in the axial direction due to the blowout of the transverse flow blades, the blowout flow is a flow with a fast wind speed but a small air volume. Due to the flow of the wind, the person feels uncomfortable when there is a person directly under the outlet, and in order to secure the air volume, the blowing wind speed becomes higher and the wind speed is higher even on the floor surface. An unpleasant state occurs, for example, when the wind is bounced off or a bounced wind hits another person.
[0005]
As a blower for solving the above problem, there is a blower described in JP-A-6-313603. This blower uses a plurality of propeller fans, and a plurality of blowers are provided in parallel. Since the above blower uses a propeller fan, it is characterized by low noise and high fan efficiency, but the flow direction of the wind, that is, the suction direction and the blow direction is the axial direction, and the perpendicular direction of the conventional crossflow blade type is not.
[0006]
FIG. 16 is a side sectional view showing a product structure of a conventional propeller fan type blower. 35 is an outer casing of the blower 101, 103 is a suction port provided in an upper portion of the outer casing, and an upper end portion is provided at the suction port. A cylindrical bell mouth 30 having roundness 34 is formed of a resin molded product. Reference numeral 36 denotes a motor mounting foot, which fixes the drive motor 1 having the propeller fan 2 fixed to the rotating shaft by the blade fixing nut 42 so as to be positioned between the bell mouths 30. Note that a plurality of air blowing units including the drive motor 1, the propeller fan 2, and the bell mouth 30 are provided in parallel in the outer casing 35 at equal intervals. Reference numeral 104 denotes an air outlet provided in a lower portion of the outer casing 35. The air outlet 104 has a structure communicating with the air inlet 103. The air outlet 103 is bent inward with a rounded end 34 like the air inlet 103. Is connected to the outlet side end of the bell mouth 30 to form a smooth air passage 31 on the entire inner wall of the outer casing 35.
[0007]
Reference numeral 33 denotes a guide provided at the center of the air outlet 104 of the outer casing 35. The cross section with the suction port 103 side at the top and the air outlet 104 side at the bottom is formed in a substantially triangular shape, and each part of the guide is rounded 34. The multi-layer parallel nozzle 32 is formed in the air outlet 104.
[0008]
The conventional propeller fan type blower has an axial flow direction from the upper side to the lower side, and it is necessary to secure a suction space A110 between the suction port 103 and the ceiling surface 107 of the building. It cannot be attached in close contact with the surface 107. The blower main body 101 is attached to the indoor side of the upper wall surface 105 of the entrance / exit with a main body mounting bracket 102 portion. When the blower is attached to the ceiling, wall surface, or floor surface, it does not come into close contact with each surface.
[0009]
FIG. 17 is a side view of a state in which a conventional propeller fan type blower is attached, particularly in a case where there is an outside wind. The left figure (a) is a case where the blower body 101 is almost directly below the wind blowing direction, that is, a case where the rotation axis of the propeller fan is vertical. The right figure (b) is a case where the blower main body 101 is inclined obliquely and the wind blowing direction is inclined to the outside direction of the building, that is, the outside wind side. In the attached state shown in the left figure (a), the blowing air is blown into the room side (left side in the figure) by the outside wind, and the outside wind enters the room. On the other hand, in the attached state of the right figure (b), since the blowing wind is previously directed to the outdoor side (right side in the figure), the ratio of entering the room by the outdoor wind is reduced. However, since such a mounting state requires the direction of the blower body 101 to be tilted by the body mounting bracket 102, if there is an outside wind, the blower body 101 once mounted must be attached at an angle, The mounting state is unnatural to the eye.
[0010]
FIG. 18 is a side view of a state in which a conventional propeller fan type blower is attached, particularly in a case where the outside wind is strong. Although the blower main body 101 is tilted and attached, since the external wind force is stronger than the blower wind force of the blower, the blowout air does not appear as shown in the right figure (b) of FIG. The outside wind is blown into the middle left) and enters the room.
[0011]
[Problems to be solved by the invention]
In the case of a blower using cross flow blades as shown in FIG. 15, there is a problem that the amount of ventilation cannot be secured and the sealing effect is not sufficient. Further, the blades have a low fan efficiency of about 30%, and there is a problem that annoying noise such as a rotating sound whose frequency is determined by the number of rotations is particularly high. In addition, the blade has many small blades (usually about 12 blades) called a multi-blade fan, and dust tends to adhere to the blade. There was a problem that the vibration was lost. Furthermore, it was difficult to clean the blades because of the complicated blade attachment and detachment. Furthermore, when using a propeller fan, it is necessary to secure a space between the air inlet 103 and the building as shown in FIG. 16-18, and the product cannot be attached to the ceiling surface so that it cannot be attached to an air curtain or the like. When using it, there was a problem that it was restricted to the place of use.
[0012]
In addition, the swirl component of the blowout flow, which is a feature of the propeller fan, cannot be completely removed, and the blowout port is a nozzle type, and the blowout area is smaller than the suction area. It has not yet been possible to efficiently change the pressure to the blowing dynamic pressure. In this way, there is a problem that it is difficult to secure the wind speed and the performance such as heat insulation as an air curtain cannot be secured. Japanese Patent Publication No. 6-35880 is known as a technique for securing the air volume and wind speed with a propeller fan, but the structure becomes complicated, such as using a scroll casing or tilting the entire apparatus to ensure performance, In addition, there is a problem that the size becomes large and it is necessary to limit the mounting location and to suppress the performance, and further, there is a problem that the blowing air spreads and cannot be used for an air seal. Furthermore, since a plurality of propeller fans are used, there is a problem that many motors having the highest manufacturing cost must be used.
[0013]
The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain a highly reliable device that can ensure the direction and speed of the blowing air and can blow far away. Another object of the present invention is to obtain an apparatus that can obtain a large air volume and a high air velocity in one direction with a simple structure. Another object of the present invention is to provide a system and method that are easy to use and can form a blast flow such as a high-performance air curtain.
[0014]
[Means for Solving the Problems]
The blower according to claim 1 is a propeller fan that is rotationally driven by the driving means to blow air, and is provided around the propeller fan to guide the air flow in the axial direction, and blows air from the vicinity of the end of the propeller fan to the outer circumferential direction. The air passage forming means for guiding, and the air passage forming means as one side wall, a blower outlet for blowing the air in the outer peripheral direction is provided, and the surface facing the blower outlet is a propeller fan. Constant A fan casing connected to the semicircular side wall so as to maintain a distance between the fan and the side wall provided in the fan casing so as to face the propeller fan at a predetermined interval in the axial direction of the propeller fan. A thin plate-like air passage member larger than the outer diameter of the blades of the propeller fan that forms the diffuser air passage for guiding the air flow in the outer peripheral direction, and provided on the surface facing the thin plate-like air passage member and the side wall. Air blown from the diffuser air passage is guided from the vicinity of the outer periphery of the fan casing between the other side wall and blown out from the air outlet.
[0015]
The blower outlet of the blower according to claim 2 is provided with a plurality of wind direction plates in the width direction of the fan casing, partitioned in the width direction, and blown in one direction from the blower outlet.
[0016]
The blower outlet of claim 3 is provided with a plurality of wind direction plates in the axial direction of the fan casing and partitioned in the axial direction, and the wind direction plates can be rotated in the axial direction.
[0017]
The blower according to claim 4 is a propeller fan that is rotationally driven by the driving means and blows air, and is provided around the propeller fan to guide air to the propeller fan, and from the vicinity of the outlet end portion of the propeller fan to the outer circumferential direction. The air passage forming means for the fan casing that guides the air flow, the air outlet of the fan casing that blows the air in the outer peripheral direction in one direction substantially perpendicular to the rotation axis of the propeller fan, and the surface facing the air outlet are the propeller fan. The outer periphery of the fan casing connected to the semicircular side wall so as to cover the outer periphery of the fan, and the side wall provided in the outer periphery of the fan casing so as to face the propeller fan at predetermined intervals in the axial direction of the propeller fan A thin plate-like air passage member that forms a diffuser air passage that guides air flow in the outer circumferential direction, and the thin plate-like air passage member A rear air passage that guides the air flow in the outer circumferential direction from the diffuser air passage and blows it out from the air outlet between the other side wall provided on the surface facing the wall, and has a plurality of air direction plates at the air outlet. The outlet is divided to blow air in one direction.
[0018]
The blower according to claim 5 is a propeller fan that is rotationally driven by the driving means to blow air, and is provided around the propeller fan to guide the air blow in the axial direction, and blows air from the vicinity of the end of the propeller fan in the outer circumferential direction. An air passage forming means for guiding, and an air outlet for blowing the air in the outer peripheral direction in one direction perpendicular to the rotation axis of the propeller fan, with the air passage forming means as one side wall, and the outer peripheral surface excluding the air outlet A fan casing connected to a semicircular side wall, and is provided in the fan casing so as to face the propeller fan at a predetermined interval in the axial direction of the propeller fan. A thin plate-like air passage member that forms a diffuser air passage, and the dimension from the outlet end of the air outlet to the outer diameter of the blades of the propeller fan is half of the fan casing Dimension between the outer diameter of the blade shape outer peripheral surface and the propeller fan and is obtained by substantially the same degree.
[0019]
The blower according to claim 6 is formed by integrally molding at least a part of the air passage forming means or the fan casing with polystyrene foam or the like.
[0020]
The suction R portion of the integrally formed air passage forming means of the blower according to claim 7 is formed in a mortar shape covering the outer peripheral portion of the propeller fan.
[0021]
The blower according to claim 8 is configured such that the size of the fan casing in the width direction is 1.4 to 1.5 times the outer diameter dimension of the blades of the propeller fan, and the fan casing is approximately centered on the rotation axis of the fan. Semicircular.
[0022]
The blower according to claim 9 is configured such that the size in the height direction of the fan casing having one end of the air outlet is approximately the same as the size in the width direction of the fan casing.
[0023]
According to a tenth aspect of the present invention, the second blower air passage and the open / close damper for opening and closing the second blower air passage are provided on the wall surface adjacent to the blower outlet of the fan casing or on the wall surface forming the blower outlet.
[0024]
The blower according to claim 11 is provided with an endothermic / heating element at the outlet of the centrifugal diffuser air passage.
[0025]
The blower according to claim 12 is provided with an endothermic / heat generating element in the vicinity of the air outlet, a second air outlet on the wall surface adjacent to the air outlet of the fan casing, and a partially opened opening of the air outlet. It is.
[0026]
According to a thirteenth aspect of the present invention, the blower is connected in a direction in which the rear surfaces facing the suction ports of the propeller fan are aligned and the outlets are arranged.
[0027]
According to a fourteenth aspect of the present invention, a plurality of air blower systems are provided in parallel so that the inlets and outlets of the propeller fan are adjacent to each other, and an air curtain flow is formed by the air flow from the plurality of fans.
[0028]
The blower system according to claim 15 is configured such that a plurality of propeller fan inlets and outlets are connected in parallel so as to be adjacent to each other, and two sets of these connected units are provided to suck the propeller fans of each set. The backs opposite to the mouth are aligned and the air outlets are arranged in a direction.
[0029]
According to a sixteenth aspect of the present invention, the propeller fan, which is rotationally driven by the driving means of the blower, blows the axial ventilation from the suction port in the outer circumferential direction from the vicinity of the end of the propeller fan by the diffuser air passage. The step of blowing the propeller fan from the blower outlet provided at one end of the fan casing of the blower housing the diffuser air passage, and the blower so that the inlet and outlet of the propeller fan are adjacent to each other. A step of forming an air flow by blowing from a set of a plurality of fans connected in parallel, and a set of a plurality of fans Fixed A step of arranging another set of a plurality of blowers at a distance to form an air flow in the other direction of the other set of blowouts, and blowing the blowout of one set to the other set Are arranged so as to be sucked and blown, and an angle is provided in the ventilation direction of the suction port and the blower outlet, thereby forming continuous air flow on a plurality of surfaces having different angles.
[0030]
The blower according to claim 17 is provided with a wind direction plate that is rotatable at the air outlet, and the direction of the air blown out in one direction can be changed by changing the angle of the wind direction plate.
[0031]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
FIG. 1 is a side view of a product configuration of a blower according to the present invention, and FIG. 2 is a front view of a state where a decorative grill is removed. Reference numeral 2 denotes a propeller fan that is rotationally driven by the drive motor 1 and performs a blowing action. Reference numeral 5 denotes a bell mouth casing for guiding air to the propeller fan 2, and is connected to an outlet end of the bell mouth casing. The second air passage members 4 and 16 for partitioning have a blower outlet 104 in a direction perpendicular to the rotation axis of the propeller fan 2, and a fan casing 3 having a substantially semicircular outer shape in cross section perpendicular to the rotation axis. A disk-shaped first air passage member provided in the fan casing 16 so as to face the propeller fan 2 at a predetermined interval and serving as a ventilation guide as a dimension larger than the outer diameter of the propeller fan, 15 is a blower body, Reference numeral 103 denotes a fan inlet port that is open on one side, 15a is a main body rear surface on the opposite side, and 11 is a drive motor approximately at the center of the main body rear surface 15a. And a motor mounting plate for fixing the first air passage member 3, 22 a fan fixing nut to which the propeller fan 2 is detachably attached to the rotating shaft 1 a of the drive motor 1, and 9 a second air passage member 4. And a diffuser air passage 10 formed between the first air passage member 3 and a disk-like first air passage member 3 which is configured to be larger than the outer diameter of the propeller fan 2 and are mounted substantially in parallel. .
[0032]
A larger fan casing 16 is attached to the outer peripheral portion of the first air passage member 3 in a semicircular shape centering on the rotating shaft 1a, and a fan outlet 104 is provided on the side surface of the main body located on the opposite surface. Yes. The fan casing as a whole has a bell mouth casing 5 as a ventilation guide for the propeller fan 2, a second air passage member 4 that forms a side wall, a main body back surface 15 a, a fan casing 16, and an outlet 104 are integrally coupled to the main body 15. In addition, a main body 15 including a decorative grill 14 is formed. A decorative grille 14 is detachably attached to the fan inlet 103, and a plurality of right and left airflow direction plates (rectifier plates) 17 are arranged in the width direction of the scroll casing so as to partition the blowout airway in the width direction. Installed on.
[0033]
The air sucked by the propeller fan 2 through the decorative grille 14 and the fan suction port 103 is subjected to axial and radial forces by the rotation of the propeller fan, and the bell mouth casing 5, the second air passage member 4, The single air passage member 3 can flow the velocity energy of the flow from the axial direction to the radial direction by converting it into static pressure without wasting it wastefully. That is, the centrifugal diffuser air passage 9 that converts the axial flow into the radial flow in the outer circumferential blowing space from the bell mouth casing to the first air passage member, the large air flow of the propeller fan, low noise, The flow can be changed by 90 ° while taking advantage of the high efficiency, and the pressure (static pressure) can be increased compared to the axial ventilation that is the flow of the conventional propeller fan. That is, the characteristics are improved by converting the velocity energy, which was wasted in the conventional propeller fan by the centrifugal diffuser air passage, into static pressure.
[0034]
The air whose direction of flow is changed in the radial direction from the centrifugal diffuser air passage 9 is guided to the left and right side surfaces of the blower body 15 as it is in the lower side of FIG. That is, since the air is blown out at a high wind speed due to the large amount of air flow of the propeller fan and the pressure converted in the centrifugal diff user air passage, the air can be blown away. In addition, the upward air flow collides with the fan casing 16 and enters the centrifugal diffuser air passage back space 10 side formed between the main body back surface 15a and the first air passage member 3, that is, the outer peripheral portion of the first air passage member 3. The direction of the flow is changed by about 180 °, and the air is blown out from the outlet 104 through the centrifugal diffuser air passage rear space 10. Further, as shown in FIG. 2, the air blown to the side also collides with the semicircular fan casing or the side wall of the main body 15, and the centrifugal diffuser air passage back space formed between the main body back surface 15 a and the first air passage member 3. The direction of flow is changed to the 10 side, that is, at the outer peripheral portion of the first air passage member 3, and the air is collected at the air outlet 104 opened at the entire lower part of the main body 15 and blown out in a certain direction with a large air volume and a high air speed. That is, the air sucked from the front surface of the decorative grille 14 changes the flow direction by 90 °, and the scroll casing 16 collects and blows the radial flow toward the four sides of the box-type main body on one side of the box-type main body. put out.
[0035]
There is a conventional winding start, and in the scroll type casing that tries to flow the wind smoothly by enlarging the vortex over the outlet, it can blow out from the expanded outlet even though it can secure air volume and reduce noise Diffused winds vary greatly in wind speed depending on the position of the outlet, and it is difficult to blow away. As in the present invention, the gap that is blown in the axial direction from the centrifugal diffuser air passage 9 to the centrifugal diffuser air passage rear space 10 between the semicircular fan casing and the first air passage member 3 is the fan casing and the first air passage member 3. The gap between the first air passage members 3 is the same in the upper half, and the gap between the main body side wall and the first air passage member 3 increases toward the lower half, so that the air flow of the propeller fan concentrates downward. In other words, with the configuration in which the flow of wind is concentrated in a certain direction without being diffused after leaving the fan, it is blown out while maintaining the air volume and wind speed, so that a large air volume can be blown away. Further, since a casing back space 27 is formed between the fan casing 16 and the main body 15, it is possible to store a capacitor and a wiring component which are electrical components by using this space.
In addition, the propeller fan is a centrifugal fan, and its blade shape is simpler and lighter than other blades such as cross-flow fans, and no complicated fan casing is required. Therefore, the air volume can be obtained with a small size. For example, a propeller fan can rotate twice as fast as the same air volume compared to a line flow fan with a large air volume.
[0036]
In FIG. 2, four left and right wind direction plates 17 are attached so as to partition the blowing air passage in the width direction, that is, the left and right direction in the figure. In order to make the wind blown out from the blowout port 104 reach far, it is necessary to rectify the wind blown out from the blowout port 104, to make the blowout direction the same direction, and to make the blown wind speed uniform. That is, unless the wind blown from the outlet 104 is uniform, they will interfere with each other and will not reach far away. In this prototype, when the propeller fan is driven to rotate at a rotational speed of 2200 r / m with a blade outer diameter of φ210, a body outer shape of □ 300, and an outlet size of 300 × 75 mm, the wind speed is improved by about 30% by providing the wind direction plate 17. There was an effect to. In addition, a propeller fan is attached to the approximate center of the main body, the fan casing 16 is provided in contact with the main body, and the first air passage member 3 is a circular thin plate in FIG. 2 so as to form a diffuser. The outer diameter of the air passage member 3 is smaller than the diameter of the fan casing in order to create a clearance for securing an air passage in the axial direction. However, the lower half of the air passage member 3 may have a rectangular thin plate shape. . However, unless the outer diameter of the propeller fan is made as large as possible compared with the dimensions of the main body, that is, the outer diameter of the semicircle of the fan casing, the wind speed will not be generated. In the example of the prototype, when the fan blade outer diameter was set to 180, the wind speed was not obtained. This is because the air path from the fan to the air outlet became longer and the pressure in the main body decreased, and the fan diameter was made large relative to the main body so that the air was blown out while maintaining a high pressure. Desirably, the dimension is such that a diffuser air passage and an axial passage having a minimum diameter can be secured.
[0037]
Embodiment 2. FIG.
3, 4 and 5 are side views of other product configurations of the blower of the present invention. 1 and 2 denote the same parts. The integral fan casing 19 is formed by integrally molding the bell mouth casing 5 and the second air passage member 4 having the structure shown in FIG. 1 with a heat insulating lightweight material such as polystyrene foam. The integrated fan casing 20 is formed by integrally forming the bell mouth casing 5, the second air passage member 4 and the fan casing 16 having the structure shown in FIG. 1 with a heat insulating lightweight material such as foamed polystyrene. In addition to the wind direction plate 17, the fan outlet 104 is provided with two front and rear wind direction plates 18, one on the centrifugal diffuser air passage 9 side and one on the centrifugal diffuser air passage rear space 10 side. The air passage 104 is partitioned in the axial direction. The front and rear wind direction plates 18 are pivotable in the axial direction. In FIG. 3, the direction is vertical, and the blowing air is perpendicular to the axial direction, that is, directly below the drawing. FIG. 4 is inclined to the main body back surface 15a side, and the blowing wind is not directly below but slightly directed to the main body back surface 15a side, and shows an attachment state when there is an external wind. Since the integrated fan casing is integrally molded with a heat insulating lightweight material such as polystyrene foam, it is possible to integrate parts and reduce the weight at the same time. When the main body 5 is made of a thin steel plate, the integrated fan casing is attached to the inner surface of the main body. Since the strength of the main body can be increased, the main body can be further thinned. The front / rear wind direction plate 18 can be easily manually rotated by the user with the wind direction plate fulcrum 18a as a fulcrum.
[0038]
The suction R portion of the integrated fan casing 19 shown in FIG. 3 has a mortar shape covering the outer periphery of the propeller fan. That is, the suction portion 19a, the blowout portion 19b, and the intermediate portion thereof are all circular. In the shape of the bell mouth 5 in FIG. 1, the air sucked from the suction port 103 is circular at the bell mouth 5 portion because the opening surface of the main body 15 is a quadrangle, and the suction flow is changed from a quadrangle to a circle. Therefore, since the flow is biased, the propeller fan 2 may be rotating at a high speed, and an annoying noise such as a rotating sound whose frequency is determined by the number of rotations is likely to be generated as in the case of the cross flow fan. On the other hand, in the integrated fan casing 19, the suction R portion is formed in a mortar shape that covers the outer peripheral portion of the propeller fan.
[0039]
In FIGS. 1 and 2, the size of the fan casing in the width direction is 1.4 to 1.5 times the outer diameter of the propeller fan, and the fan casing has a substantially semicircular shape around the rotation axis of the fan. In a blower using a conventional propeller fan, as shown in Japanese Patent Publication No. 6-35880, the width direction W of the scroll casing is about twice the outer diameter of the propeller fan. When the scroll casing has a spiral shape like a sirocco fan, when the blades rotate in the right direction when viewed from the suction side, the speed of the blowout air in the width direction of the outlet 104 is faster on the right side and slower on the left side. End up. In addition, the size of the scroll is large because the flow is made smoothly with respect to the outer diameter of the blade. For example, in the case of the standard scroll magnification, when the outer diameter of the blade is φ180, the outer shape of the scroll is □ 300, and the outer shape of the scroll is the outer diameter of the blade. 1.66 times greater than When used as an air curtain, it is necessary to equalize the blown wind speed of the flow in a certain direction as described above. Therefore, at the same number of rotations, the processing air volume is slightly reduced, but as a method of rotating at high speed to increase the blowing air speed, in the present invention, the fan casing is formed concentrically with the blades so as to be 1.4 to 1.5 times the blade outer diameter. It is configured to be. In this way, the outer diameter of the blade including the fan casing can be about φ210 while the outer shape of the main body including the fan casing is □ 300. Further, the wind speed in the width direction from the outlet 104 can be made uniform. Setting the fan casing to 1.4 to 1.5 times the blade outer diameter means that the first air passage member 3 is optimally 1.15 to 1.2 times the blade outer diameter. Considering the air passage from the centrifugal diffuser air passage 9 to the centrifugal diffuser air passage rear space 10, the ratio is 1.4 to 1.5 times.
[0040]
FIG. 5 shows an explanatory view when parts of a blower having an integrated fan casing are disassembled. The main body 15 can be disassembled sequentially from the front part where the grille 14 is attached, and conversely, it can be easily attached from the rear part. FIG. 5 shows a component configuration of the blower of FIGS. 3 and 4 and shows a case where assembly is performed. First, the motor mounting plate 11 is fixed to the center of the main body back surface 15a of the box-shaped main body 15 with one surface opened by spot welding or screw fixing. Next, the drive motor 1 is fixed to the motor mounting plate 11 with a motor fixing screw 23. At this time, the first air passage member 3 is also fastened to the motor mounting plate 11 together. The integral casing 20 is inserted from the fan suction port 103. In the case of this example, the integral casing 20 is formed by integrally molding three parts, a bell mouth casing 20a, a second air passage member 20b, and a fan casing 20c, with polystyrene foam or the like. In the above description, the case of the integrated fan casing 20 has been described. In the case of the integrated fan casing 19, the fan casing 16 formed of a thin steel plate or the like is fixed to the main body 15 before the fan casing 19 is inserted. When the integrated fan casing 19 is inserted, for example, a function such as a stopper is provided in the main body 15 so that the outlet side end 19b and the first air passage member 3 have a predetermined interval. Similarly, the propeller fan 2 is fixed to the rotating shaft 1 a of the drive motor 1 by the blade fixing nut 22 from the fan suction port 103. Finally, the decorative grille is attached to the opening of the main body.
[0041]
When performing maintenance such as removing dust adhering to the propeller fan 2 of the blower, first, the decorative grille 14 attached to the suction port 103 of the main body 15 is removed. Next, the blade fixing nut 22 is removed, and finally the propeller fan 2 is removed from the rotating shaft 1 a of the drive motor 1. As described above, in the configuration of the blower, the fan can be easily cleaned with the product mounted. In addition, the propeller fan is less likely to adhere to dust than the cross-flow fan, which is a multi-blade fan, and the dust adherence is even on the blade front surface. Since there is no unevenness, maintenance is easy. When this blower is attached to the building, the makeup grill 14 is first removed, and then the propeller fan 2 is removed as in the case of maintenance, and in this state, the state of the blower provided on the first air passage member 3 is affected. A wall mounting mounting member such as a wood screw may be inserted from a mounting hole that does not give a screw, and a main body fixing hole provided in the main body back surface 15a on the surface facing the mounting hole may be used to fix the blower main body to the wall surface. Alternatively, a body fixing hole for fixing a ceiling mounting attachment member such as a wood screw is provided at a position where the bell mouth casing 5 is not located on the side surface 15b of the main body, and is directly fixed to the ceiling surface 107 with the decorative grille 14 removed. You can also. In this way, the main body can be directly and securely fixed to the wall surface or ceiling surface, and the mounting hardware for the main body is not required, so that inexpensive and lightweight mounting is possible.
[0042]
Embodiment 3 FIG.
FIG. 6 is a side view of a state in which a plurality of blowers are arranged and attached at positions separated from each other in the room. In the figure, the right side is a normal mounting state diagram in which a plurality of blowers arranged continuously in parallel function as an air curtain, 101 is a blower main body, 103 is a suction port, 104 is a blowout port, 105 is an upper wall surface of the doorway, 106 Is an open doorway, 107 is a ceiling surface, 108 is a floor surface, and 109 is a wall surface without an opening. The flow direction of the wind is sucked from the suction port 103 of the blower arranged below, and blown out from the suction port 104, that is, the lower side on the left side to the right angle from the suction, and the blown air blown is used as the suction wind of the blower attached to the ceiling surface. . The blowout from the ceiling blower is blown to the air curtain blower provided at the entrance 106 as indoor circulation air. The air curtain blower is mounted such that the main body side surface a101a opposite to the suction port 103 of the blower main body 101 faces the upper wall surface 105 of the entrance and the side facing the ceiling surface 107 of the building is the outlet 104 of the blower main body 101. Because of the opposite main body side surface b101b, the blower main body 101 can be attached in close contact with the ceiling surface 107. In the drawing, the upper left side is a normal attachment state diagram as an air conveyance (circulator), and shows the case where the air in the indoor ceiling is blown from the left side to the right side. In this case, the air inlet 103 is on the lower side and the wall surface 109 side of the building is the main body side surface b101b, and the ceiling surface 107 side of the building is the main body side surface a101a, so that the blower main body 101 is in close contact with both the wall surface 109 and the ceiling surface 107. Can be attached. Furthermore, since the vertical dimension of the blower is determined by the axial dimension of the blades of the propeller fan, the blower can be configured to be thin, can suppress the projecting dimension from the ceiling surface, and fits to the ceiling surface. In the drawing, the lower left side is a diagram showing a normal installation state as a circulator. In this case, the floor surface 108 side of the building is the main body side surface b101b, and the wall surface 109 side of the building is the main body side surface a101a. It can be attached to both of the wall surfaces 109 and installed on the floor surface. In addition, although the structure which circulates the wall surface in a room was demonstrated in this description, if it provides in the partition part between rooms, a specific room can be thermally insulated with an air curtain. Moreover, although the structure attached to a ceiling surface was shown, it can also partition with the ventilation which circulates through the space of the upper layer which does not require air conditioning with respect to the large space which has a high space, and can also improve energy efficiency. In addition, even if the entrance / exit is not a flat shape but an intricate shape, if you use the air curtain with this circulating airflow sideways, you can seal the surface of two or three entrances with continuous circulating airflow, Even a complicated surface such as a shape in which the entrance is retracted into the interior of the room can be sealed with a continuous air flow.
[0043]
FIG. 7 is a side view of the air curtain fan attached, particularly in the case where there is outside air. The left figure (a) is the case where the blower main body 101 is in the same direction as FIG. 3, that is, when the wind blowing direction is almost directly below, that is, when the wind direction plate provided at the outlet is vertical or not attached. The right figure (b) shows the case where the blower body 101 is mounted in the same manner, but the wind direction plate is tilted toward the outside of the building, that is, the outside wind side. In the attached state shown in the left figure (a), the blowing air is blown into the room side (left side in the figure) by the outside wind, and the outside wind enters the room. On the other hand, in the attached state of the right figure (b), since the blowing wind is previously directed to the outdoor side (right side in the figure), the ratio of entering the room by the outdoor wind is reduced. Such a mounting state can be performed by simply tilting the wind direction plate 21 provided at the air outlet, and it may be changed when the user has outside wind after mounting the blower body, and the product mounting state is also unnatural. Not. In this way, it is possible to change the blowing direction without changing the installation direction of the main body, and to easily take measures against outside wind. 6 and 7 are connected in parallel so that the inlet and outlet of the propeller fan are adjacent to each other, and an air curtain is formed by the air flow from the plurality of fans. Since air is blown out from the entire lower end corresponding to the fan casing of the blower body 101 and the air outlets are continuously arranged, the entire plane can be covered with the air flow. In addition, an air curtain with a reliable seal is formed by blowing air from the propeller fan through the centrifugal diffuser air passage with a small air gap and a constant air speed while ensuring the air volume and air speed.
[0044]
FIG. 8 is a side view of a mounting state in which the blower is combined and is a state where the outside wind is particularly strong or the opening height of the doorway is high. The two blower main bodies 101 are installed in a state in which the main body side faces 101a are in close contact with each other and the two outlets 104 are adjacent to each other. Although the axial dimension of the blown air is about doubled and the force of the wind blown is about twice as strong as the outside wind, the blown air is reduced from entering the room due to the outside wind. The blower arranged facing the room sucks air from the room, and the blower arranged facing the room sucks air from the outside. Depending on the opening height of the entrance / exit, the blower main body 101 is installed so that the body side surface 101b opposite to the outlet 104 faces the lower end surface of the upper wall surface 105 of the entrance / exit. In particular, in this configuration, a series of blower configurations are arranged on the ceiling, the interior is partitioned with an air curtain to separate the parts that require heating and cooling, the other parts, the smoking part, etc. Can be partitioned without partition walls.
[0045]
Embodiment 4 FIG.
FIG. 9 is a front view of another blower according to the present invention with the decorative grille removed, and FIG. 10 is a bottom view seen from the outlet 104 side. The same reference numerals as those in the drawings described above denote the same items. Reference numeral 21 denotes an endothermic / heating element provided at the outlet 104. The heat absorption / heating element 21 is located in the place where the wind speed is the highest, so that not only the heat exchange efficiency is good. For example, if this heat absorption / heating element is made into a rod-shaped sheathed heater with a narrow diameter, heat exchange can be effectively performed with respect to the air flow. The effect on the blowout wind is small due to the elongated rod shape. If the sheathed heater is attached in a U-shape so that it is located at substantially the center in the axial direction of the centrifugal diffuser air passage 9 and substantially in the axial direction of the centrifugal diffuser air passage back space 10, the overall length becomes long and the terminal portion at the tip By energizing 21a, it is possible to increase the capacity with a single heater. Moreover, since the amount of air passing through the outer periphery of the sheathed heater is large for heat exchange, large capacity heat exchange is possible. The wind direction plate 17 can prevent the influence of heat by cutting out the wind direction plate in the vicinity of the portion where the sheathed heater exists. As a result, an air curtain with a heating function having a large heater capacity can be configured, and it can be used effectively as auxiliary heating in winter.
[0046]
Reference numeral 24 in FIG. 9 denotes a second blowout air passage that can be opened and is provided on an adjacent side surface of the air outlet 104 without the scroll casing 16 of the box-shaped main body 15. Reference numeral 25 denotes an open / close damper provided at this portion for opening and closing. Reference numeral 26 denotes a blowout blocking portion, which is an opening of the projection surface on which the heat absorption / heating element 21 is provided, and blocks a part of the blowout port 104 adjacent to the second blowout air passage 24. Thereby, a part of the air blown out from the second blowing air passage 24 is heat-exchanged by the heat absorption / heating element 21.
If it does in this way, this air blower is installed in a washroom in one use other than an air curtain, for example, as an alternative to a fan, that is, used as a cool air blower, and in winter, as a supplementary heating, further, a second blowout air passage The warm air blown from 24 can be used for anti-fogging of the mirror.
[0047]
Example 5 FIG.
FIG. 11 is a perspective view of the product configuration of another blower. The same reference numerals as those in the other drawings denote the same components. Three blowers are connected in parallel so that the air inlet 103 and the air outlet 104 of the fan of the blower body 15 are adjacent to each other. Similar to the blower disclosed in Japanese Patent Laid-Open No. 6-313603, the number of blower connections is determined in accordance with the opening size of the doorway 106 opened in the building. Here, the size of the blower 15 is 300 mm for the width dimension A, 300 mm for the height dimension B, and 180 mm for the depth dimension C with respect to the blade outer diameter φ210. In contrast, in the conventional propeller fan type blower, the width dimension A is 180 mm, the height dimension B is 220 mm, the depth dimension C is 245 mm including the body mounting bracket 102, and the body mounting bracket dimension is 35 mm with respect to the blade outer diameter φ155. It is. The air volume ratio when the size of the blower is changed is the third power of the blade outer diameter ratio when the rotational speed is the same (180/155). ^Three = 1.6 times, and the number of blowers is 1 / 1.6. Further, since the width dimension A of the blower is about 1.5 times, for example, in the blower for the opening of 900 mm, three blower bodies, that is, three drive motors are required, whereas in the conventional product, the blower body is Five, that is, five drive motors are required. From this, the blower of a present Example can reduce the usage quantity of the highest drive motor in manufacturing cost, and can reduce manufacturing cost.
[0048]
If the installation volume is compared, it is necessary to secure the suction space A110 in the conventional propeller fan type blower. 16-18, since the height dimension of the suction space A110 is required to be 150 mm, when the width dimension is the same, the embodiment has a height of 300 × depth 180, and the conventional product has a height (220 + 150) × depth 245. Therefore, the installation volume of the blower of the present embodiment is only 60% as compared with the conventional product.
[0049]
FIG. 12 is a perspective view of a product configuration in which the blower described in FIG. 8 is combined. The same symbol indicates the same thing. 8 and 12 show a state in which the back surface 15 of the main body, which is the opposite surface of the fan inlet 103, is combined, and a pair of blowers are connected in a direction in which the outlet 104 is arranged in the vertical direction (rotating axis direction). 12, three fans connected in parallel so that the fan inlet 103 and the outlet 104 are adjacent to each other are aligned with the back opposite to the fan inlet, and the outlet is arranged in the vertical direction. In the direction, the blower is connected, that is, the blower of FIG. 11 is connected so that the pair of main body back surfaces 101a are aligned. The axial dimension of the wind blown from the outlet 104 is doubled and the air volume is also doubled. As described above, it is effective for improving the ability to block outside wind, particularly when the outside wind is strong.
[0050]
In the above description, the planar air seal for the doorway to the outdoors has been described, but there are recent highly airtight buildings, factories and hospitals that require cleanliness inside. In such places, air partitions are often required not only between outdoors but also in specific places and hallways in the room. For such a case, the propeller fan that is rotationally driven by the motor that is the driving means of the blower in the air blowing method as a blower system allows the axial ventilation from the suction port to flow from the vicinity of the end of the propeller fan. By blowing air in the outer peripheral direction by the road, it is possible to blow air with a high air volume and high pressure with low noise. The blower can be blown far away by blowing the blower of the propeller fan in one direction substantially perpendicular to the axial direction from the blower outlet provided at one end of the fan casing of the blower housing the diffuser air passage. A powerful air curtain flow, that is, a partition of air, is formed by blowing from a set of a plurality of blowers in which a plurality of such blowers are connected in parallel with the inlet and outlet of the propeller fan next to each other. Can be obtained. Furthermore, the other set of a plurality of fans is arranged at a distance from such a set of the plurality of fans, and another air flow is formed in the other direction of the other set of blowing, If more than two of these combinations are provided, a circulating air flow from one set of fans to another set of fans can be continuously formed as a plurality of surfaces, and a system with an angle in the direction of suction and blowing can get.
[0051]
This system alone or a combination of this system and walls, etc. can be used in rooms and corridors, but it can form a closed space that confines the quality of the air inside, and it can be used for ventilation fans, cooling, air purification, etc. By combining with an air conditioner, it is possible to obtain a system using a flow of air that can be used for various purposes such as confining and exhausting dirty air and keeping it clean. It is to be noted that a more complicated configuration is provided by providing a turnable wind direction plate at the outlet and changing the angle of the wind direction plate so that the direction of the air blown in one direction can be changed from the direction perpendicular to the axial direction. This system is also possible.
[0052]
As described above, in the present invention, the diameter of the blade is set as large as possible as compared with the outer shape of the box of the blower. This is because when the number of rotations is the same, the air volume increases with the cube of the outer diameter ratio of the blades. For this reason, a diffuser air passage and a semicircular fan casing are provided so as to concentrate and blow out the air flow and speed. It allows you to blow air far away without dropping. Furthermore, a thin blower can be realized by the boss configuration of the fan that houses the motor in the blades of the propeller fan. In addition to this, the axial direction of the blower is greatly shortened by the diffuser back space having a thickness similar to that of the thin diffuser air passage. Furthermore, the propeller fan shaft is positioned approximately in the center of the outer shape of the box, and the height of the outlet from the blade outer diameter is set between the blade outer diameter on the opposite side and the fan casing. The size is about. This is because the directivity to the wind direction is obtained by the wind path of the diffuser wind path and the diffuser back space, so there is no need to attach a long guide to the air outlet, and from this, the height direction dimension can be suppressed, and the ceiling Combined with the fact that there is no need to provide a space for suction between the fan body and the blower body, a device having a small installation volume and a good space factor can be obtained.
[0053]
Further, the blower of the present invention is connected to a propeller fan that is rotationally driven by a motor to perform a blowing action, a bell mouth casing for guiding air to the propeller fan, and an outlet end of the bell mouth casing, and is connected to a rotating shaft of the propeller fan. A fan casing having a blower outlet in a direction orthogonal to each other and having a substantially semicircular outer shape in a cross section orthogonal to the rotation axis, and a disc-like shape provided in the fan casing so as to face the propeller fan at a predetermined interval. It is composed of an air channel member, and a flow straightening plate that is a plurality of right and left wind direction plates in the width direction of the fan casing is provided at the fan outlet, so that a new structure with improved aerodynamics and noise characteristics by a simple structural change. By applying a propeller fan, a compact, low-noise, high-efficiency air curtain can be configured with few installation restrictions and a small installation volume. That is, as a result, an air curtain having a high outside wind blocking ability can be obtained. Further, by simply removing the decorative grill provided on the front surface of the blade and removing the blade fixing nut, the blade can be attached and detached, and the blade can be easily cleaned. In addition, the propeller fan can be made larger than a conventional blower using a plurality of propeller fans, and the number of used fans can be reduced to reduce the manufacturing cost. In the description of the present invention, a structure that can be easily assembled using a lightweight material such as polystyrene foam is explained. However, if a thixomolded product made of magnesium alloy including a rotating body such as a fan blade is used, it is effective for recycling. . This provides light weight and strength, and makes it easy to use waste materials during production and use after being discarded after use, and is not disposed of as waste, which is a measure for the global environment.
[0054]
【The invention's effect】
According to the first aspect of the present invention, the propeller fan that is rotationally driven by the driving means and blows air, and is provided around the propeller fan, guides the air blow in the axial direction, and blows air from the vicinity of the end of the propeller fan to the outer peripheral direction. The air passage forming means for guiding the air passage, the air passage forming means as one side wall, a blower outlet for blowing the air in the outer peripheral direction is provided, and the surface facing the blower outlet is a propeller fan. Constant A fan casing connected to the semicircular side wall so as to maintain a distance between the fan and the side wall provided in the fan casing so as to face the propeller fan at a predetermined interval in the axial direction of the propeller fan. A thin plate-like air passage member larger than the outer diameter of the blades of the propeller fan that forms the diffuser air passage for guiding the air flow in the outer peripheral direction, and provided on the surface facing the thin plate-like air passage member and the side wall. Since the air from the diffuser air passage is guided from the vicinity of the outer periphery of the fan casing between the other side wall and blown out from the air outlet, the installation volume is small and compact with a simple structure, low noise, high A blower capable of blowing a large amount of air efficiently is obtained.
[0055]
According to the invention relating to claim 2, since a plurality of wind direction plates are provided in the width direction of the fan casing at the air outlet, and the air is blown in one direction from the air outlet, the wind speed from the air outlet blows out. There is no significant difference depending on the position of the mouth, and a blower that can blow away is obtained.
[0056]
According to the invention relating to claim 3, since the air outlet plate is provided with a plurality of wind direction plates in the axial direction of the fan casing and partitioned in the axial direction, and the wind direction plates are rotatable in the axial direction, the mounting angle of the main body It is possible to easily change the wind direction without changing the angle, and it is easy to deal with when there is an outside wind.
[0057]
According to the invention relating to claim 4, the propeller fan that is rotationally driven by the driving means and blows air, and is provided around the propeller fan, guides air to the propeller fan, and from the vicinity of the outlet end portion of the propeller fan to the outer peripheral direction. The fan casing air passage forming means for guiding the air flow to the fan casing, the fan casing air outlet provided to blow the air in the outer peripheral direction in one direction substantially perpendicular to the rotation axis of the propeller fan, and the air outlet facing the air outlet The outer surface of the fan casing connected to the semicircular side wall so as to cover the outer periphery of the propeller fan, and the propeller fan stored in the outer periphery of the fan casing and facing the propeller fan in the axial direction of the propeller fan A thin plate-like air passage member that forms a diffuser air passage that guides air flow between the side wall and the outer periphery. A rear air passage that guides the air in the outer peripheral direction from the diffuser air passage and blows it out from the air outlet between the plate-like air passage member and the other side wall provided on the surface facing the side wall. Since a single wind direction plate is provided and the air outlet is partitioned to blow air in one direction, a blower capable of blowing a large amount of air in one direction with a simple structure can be obtained.
[0058]
According to the invention relating to claim 5, the propeller fan that is rotationally driven by the driving means and blows air, and is provided around the propeller fan, guides the air blow in the axial direction, and blows air from the vicinity of the end of the propeller fan in the outer circumferential direction. The air passage forming means for guiding the air passage and the air passage forming means as one side wall, and provided with an air outlet for blowing the air in the outer peripheral direction in one direction perpendicular to the rotation axis of the propeller fan, the outer peripheral surface excluding the air outlet A fan casing connected to the semicircular side wall, and the fan casing housed in the fan casing is provided to face the propeller fan at a predetermined interval in the axial direction of the propeller fan, and blows air in the outer peripheral direction between the side walls. A thin plate-like air passage member that forms a guide diffuser air passage, and the dimension from the blowout end of the blowout port to the outer diameter of the blade of the propeller fan is The size between the outer circumference of the semicircular shape and the outer diameter of the blades of the propeller fan is almost the same, so the dimensions in the blowing direction are small, and there are no restrictions on installation by changing the direction of suction and blowing, making it easy to use A good small blower is obtained.
[0059]
According to the invention relating to claim 6, since at least a part of the air passage forming means or the fan casing is integrally formed with foamed polystyrene or the like, further parts can be integrated and a blower with good assemblability can be configured.
[0060]
According to the invention relating to claim 7, since the suction R portion of the integrally formed air passage forming means is formed in a mortar shape that covers the outer peripheral portion of the propeller fan, it is difficult to cause a bias in the suction flow, so it is harsh like a rotating sound. Noise generation can be suppressed.
[0061]
According to the invention relating to claim 8, the size of the fan casing in the width direction is 1.4 to 1.5 times the outer diameter of the blades of the propeller fan, and the fan casing is centered on the rotation axis of the fan. Since it is substantially semicircular, the wind speed in the width direction from the outlet can be made uniform and the entire apparatus can be made compact.
[0062]
According to the invention relating to claim 9, with respect to the outer diameter size of the blades of the propeller fan, the size in the height direction of the fan casing with the blower outlet as one end is made substantially the same as the size in the width direction of the fan casing. Combined with the fact that the outer shape of the box is almost square and there is an angle between the direction of suction and blowing, there is no restriction on the mounting on the ceiling or wall surface, and a compact blower that is easy to arrange can be obtained.
[0063]
According to the invention relating to claim 10, since the second blowing air passage and the opening / closing damper for opening and closing the air passage are provided on the wall surface adjacent to the air outlet of the fan casing or on the wall surface forming the air outlet, When used as a cool air blower mounted at a place, a blower that can be applied to a plurality of uses, such as being able to use the wind blown from the second blowout air passage for anti-fogging of a mirror or the like, is obtained.
[0064]
According to the invention related to claim 11, since the end of the centrifugal diffuser air passage is provided with an endothermic / heating element, it is located in the place where the wind speed is the highest so that not only the heat exchange efficiency is good but also the capacity of the heater can be increased Therefore, an air curtain with a heating function with a large heater capacity can be configured, and it can be used effectively as auxiliary heating in winter.
[0065]
According to the invention relating to claim 12, the heat absorption / heating element is provided in the vicinity of the air outlet, the second air outlet is provided on the wall surface adjacent to the air outlet of the fan casing, and a partial opening of the air outlet in the vicinity thereof is provided. Since it is closed, the warm air blown from the second blower air passage of this blower can be effectively used for other purposes such as anti-fogging of a mirror.
[0066]
According to the invention relating to claim 13, since the blower is connected in the direction in which the back surface that opposes the inlet of the propeller fan is aligned and the outlet is arranged, the axial dimension of the wind blown out from the outlet is doubled. The air blowing system that can greatly improve the ability to block outside wind can be obtained.
[0067]
According to the invention related to claim 14, a plurality of blowers are provided in parallel so that the inlet and outlet of the propeller fan are adjacent to each other, and the air curtain flow is formed by the blow flow from the plurality of blowers. When the width of the blower is matched with the frontage size, the number of drive motors used can be reduced compared to the conventional product, the manufacturing cost can be reduced, and a blower system with a large sealing effect that can reduce the installation volume can be obtained.
[0068]
According to the invention relating to claim 15, a plurality of propeller fan inlets and outlets are connected in parallel so as to be adjacent to each other, and two sets of the plurality connected are provided, and the inlets of the propeller fans of each set are provided. Since the opposite sides of the back and the air outlets are aligned, the axial dimensions of the air blown from the air outlet are doubled and the air volume is doubled, especially when the outside wind is strong, etc. Thus, a blower system that improves the ability against other influences can be obtained.
[0069]
According to the invention related to claim 16, the propeller fan that is rotationally driven by the driving means of the blower blows the axial ventilation from the suction port in the outer peripheral direction from the vicinity of the end of the propeller fan by the diffuser air passage; The step of blowing the air from the propeller fan from the blower outlet provided at one end of the fan casing of the blower that houses the diffuser air passage and the plurality of blowers arranged in parallel so that the inlet and the blower outlet of the propeller fan are adjacent to each other A step of forming a blast flow by blowing from a set of a plurality of blowers connected to a set of a plurality of blowers Fixed Arranging another set of a plurality of blowers at a distance to form another set of blowouts in another direction of the other set of blowouts, and blowing out one set of blowouts Is arranged so that the other pair sucks and blows out, and by providing an angle in the ventilation direction of the inlet and outlet, a continuous air flow is formed on a plurality of surfaces with different angles, so a closed space is provided by an air curtain, etc. It is possible to obtain an air blowing method of a convenient air blowing system that can be applied to various uses.
[0070]
According to the invention relating to claim 17, since the wind direction plate that can be rotated is provided at the outlet and the angle of the wind direction plate is changed so that the direction of the air blown out in one direction can be changed. An applicable blowing method of the blowing system is obtained.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a blower according to an embodiment of the present invention.
FIG. 2 is a front view showing a state where a decorative grill of the blower according to the embodiment of the present invention is removed.
FIG. 3 is a side sectional view of a blower according to another embodiment of the present invention.
FIG. 4 is a side sectional view of a blower according to another embodiment of the present invention.
FIG. 5 is a side sectional view for explaining assembly of a blower according to another embodiment of the present invention.
FIG. 6 is a mounting explanatory view of the blower according to the embodiment of the present invention.
FIG. 7 is an explanatory view of installation of the blower according to the embodiment of the present invention.
FIG. 8 is an explanatory view of installation of the blower according to the embodiment of the present invention.
FIG. 9 is a front view showing a state in which a decorative grill of a blower according to another embodiment of the present invention is removed.
FIG. 10 is a bottom view of a blower according to another embodiment of the present invention.
FIG. 11 is an explanatory view of installation of a blower according to another embodiment of the present invention.
FIG. 12 is an explanatory view of installation of a blower according to another embodiment of the present invention.
FIG. 13 is a bottom view of a blower according to another embodiment of the present invention.
FIG. 14 is an explanatory diagram of a blower according to another embodiment of the present invention.
FIG. 15 is a side sectional view of a conventional blower.
FIG. 16 is a side sectional view of a conventional blower.
FIG. 17 is an explanatory view of attachment of a conventional blower.
FIG. 18 is an explanatory view of attachment of a conventional blower.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Drive motor, 2 Propeller fan, 3 1st air path member, 4 2nd air path member, 5 Bell mouth casing, 9 Centrifugal diffuser air path, 10 Centrifugal diffuser air path back space, 11 Motor mounting plate, 14 Makeup Grill, 15 body, 16 fan casing, 17 left and right wind direction plate, 18 front and rear wind direction plate, 19 integral casing, 20 integral casing, 21 heat absorption / heating element, 22 blade fixing nut, 23 motor fixing screw, 24 second air outlet, 25 Opening / Closing Damper, 26 Blowing Block, 27 Scroll Casing Back Space, 30 Bellmouth, 31 Smooth Air Path, 32 Multi-layer Parallel Nozzle, 33 Guide, 34 Rounding, 35 Blower Housing, 36 Motor Mounting Plate, 101 Blower Body , 102 Body mounting bracket, 103 Suction port, 104 Air outlet, 105 Upper entrance wall surface, 106 Opened entrance, 107 Ceiling surface, 108 Floor surface, 109 Wall surface without opening, 110 Suction space, 113 Cross flow fan, 114 Drive motor, 115 Fan casing, 116 Wind direction plate

Claims

A propeller fan that is rotationally driven by the driving means and blows air, and an air passage forming means that is provided around the propeller fan and guides the air flow in the axial direction, and guides the air flow from the vicinity of the end of the propeller fan to the outer peripheral direction, the air passage forming means and one of the side walls, the blowing outer circumferential direction of the blower is provided at one end of the air outlet, semicircular surfaces other end opposite to the outlet so as to maintain a constant distance between the propeller fan A fan casing connected to the side wall having a shape and a fan casing housed in the fan casing and provided in the axial direction of the propeller fan so as to be opposed to the propeller fan at a predetermined interval in the outer circumferential direction. A thin plate-like air passage member larger than the outer diameter of the blades of the propeller fan that forms a diffuser air passage for guiding the thin plate-like air passage member and the side Blower for causing blown from the air outlet guides air blowing from the diffuser air path from near the outer periphery of the fan casing between the other side wall which is provided on opposite sides with.

The blower according to claim 1, wherein a plurality of wind direction plates are provided in the width direction of the fan casing at the air outlet and are partitioned in the width direction, and air is blown in one direction from the air outlet.

The blower according to claim 1 or 2, wherein a plurality of wind direction plates are provided in the blower outlet in the axial direction of the fan casing and partitioned in the axial direction, and the wind direction plate is rotatable in the axial direction.

A propeller fan that is driven to rotate by driving means and blows air, and a fan casing that is provided around the propeller fan and that guides air to the propeller fan and guides air flow from the vicinity of the outlet end of the propeller fan toward the outer periphery. A passage forming means, a blower outlet of a fan casing that blows air in the outer circumferential direction in a direction substantially perpendicular to the rotation axis of the propeller fan, and a surface facing the blower outlet so as to cover the outer circumference of the propeller fan. An outer peripheral portion of a fan casing connected to the side wall having a circular shape, and provided in the outer peripheral portion of the fan casing so as to face the propeller fan at a predetermined interval in an axial direction of the propeller fan. A thin plate-like air passage member that forms a diffuser air passage that guides air flow in the outer circumferential direction, and this thin plate-like air passage member A rear air passage that guides the air flow in the outer peripheral direction from the diffuser air passage and blows out from the air outlet between the other side wall provided on the surface facing the side wall, and a plurality of wind directions at the air outlet A blower characterized in that a plate is provided to partition the air outlet and blow air in one direction.

A propeller fan that is rotationally driven by the driving means and blows air, and an air passage forming means that is provided around the propeller fan and guides the air flow in the axial direction, and guides the air flow from the vicinity of the end of the propeller fan to the outer periphery. The air passage forming means is used as one side wall, and an air outlet is provided for blowing the air in the outer peripheral direction in one direction substantially perpendicular to the rotation axis of the propeller fan. The outer peripheral surface excluding the air outlet is semicircular. A fan casing connected to the side wall, and the fan casing housed in the fan casing is provided to face the propeller fan at a predetermined interval in the axial direction of the propeller fan and guides air flow between the side wall and the outer periphery. A thin plate-like air passage member that forms a diffuser air passage, and the dimension from the outlet end of the outlet to the outer diameter of the blades of the propeller fan is Blower, characterized in that the dimension between the semicircular outer circumferential surface of Ankeshingu between the outer diameter of the blades of said propeller fan is almost the same.

The blower according to at least one of claims 1 to 5, wherein at least a part of the air passage forming means or the fan casing is integrally formed of foamed polystyrene or the like.

The blower according to at least one of claims 1 to 6, wherein the air passage forming means is integrally formed, and the suction R portion of the air passage forming means is formed in a mortar shape covering the outer periphery of the propeller fan.

The size of the fan casing in the width direction is 1.4 to 1.5 times the outer diameter of the blades of the propeller fan, and the fan casing has a substantially semicircular shape centered on the rotation axis of the fan. The blower according to at least one of claims 1 to 7.

The blower according to at least one of claims 1 to 8, wherein a size in a height direction of the fan casing having the blower outlet as one end is made substantially equal to a dimension in the width direction of the fan casing.

The at least 1 of Claim 1 thru | or 9 provided with the 2nd blowing wind path and the opening-and-closing damper which opens and closes this in the wall surface which adjoins the blower outlet of a fan casing or forms the said blower outlet. Blower.

The blower according to claim 1, further comprising an endothermic / heating element at an outlet of the centrifugal diffuser air passage.

A heat absorption / heating element is provided in the vicinity of the air outlet, a second air outlet is provided on the wall surface adjacent to the air outlet of the fan casing, and a part of the air outlet near the second air outlet is closed. The blower according to at least one of claims 1 to 10.

A blower system comprising a plurality of blowers according to claim 1, wherein the blower outlets are connected to each other in a direction in which the rear surfaces facing the suction ports of the propeller fans are aligned.

A plurality of blowers according to claim 1 are provided in parallel so that a suction port and a blow-out port of a propeller fan are adjacent to each other, and from a plurality of blowers that suck in from the same direction and blow out in the same direction. An air blowing system characterized in that an air curtain flow is formed by an air flow.

A plurality of the blowers according to claim 1 are connected in parallel so that the inlet and the outlet of the propeller fan are adjacent to each other, and two sets of these connected units are provided. A blower system comprising: a pair of propeller fans that are opposite to the suction ports of the propeller fans and arranged in a direction in which the air outlets are arranged.

A propeller fan that is rotationally driven by a driving means of the blower blows axial ventilation from the suction port from the vicinity of the end of the propeller fan to the outer peripheral direction by a diffuser air passage; and the housing that houses the diffuser air passage A step in which a plurality of blowers are connected in parallel so that the air blown from the propeller fan is blown out from a blower outlet provided at one end of the fan casing of the blower and the suction port and the blower outlet of the propeller fan are adjacent to each other. A step of forming a single air flow by blowing from a plurality of blowers of the set, and another set of a plurality of similar blowers arranged at a certain distance from the plurality of blowers, and the other set of blowers And a step of forming a blast flow in the other direction to be discharged, and the other set sucks and blows out the blast flow of one set to form another blast flow. Blowing method of the air system, characterized in that to form the blowing stream is continuous in a plurality of surfaces having different angles by providing an angle ventilating direction of inlet and outlet of the blower is arranged so as.

The air blowing method of the air blower system according to claim 16, wherein a wind direction plate capable of rotating is provided at the air outlet, and the direction of the air blown out in one direction can be changed by changing the angle of the air direction plate. .