JP3597960B2 - Air conditioner - Google Patents
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Description
【０００１】
【発明の属する技術分野】
この発明は、空気調和機に係り、吹出口から吹出される吹出し気流の風向制御に関するものである。
【０００２】
【従来の技術】
主偏向翼と補助翼の二枚の翼からなる流体偏向翼を垂直風向制御板として備えた空気調和機の例は過去にも少なくなく、例えば特開平８−１４６４６号公報では壁掛け型空気調和機において、冷房運転の水平吹出し時には連結手段を用いて主偏向翼と補助翼を重ねて一体の状態に保持し、翼二枚分の抵抗を一枚分にすることにより風量の減少を抑え、また暖房運転の垂直吹出し時には上記連結手段の連結を分離する分離手段及びこの分離手段の分離力を押さえる押圧手段を用いて、主偏向翼と補助翼を所定間隔を空けて対向させ、翼同士の間隔が風下側になるにつれて狭い状態にし、翼同士の間から吹出される吹出し気流の速度を大きくすることにより、吹出し気流の到達距離を延ばし拡散領域を広げ、室内環境の快適性を向上させようとしている。
【０００３】
また床置き・天井吊り兼用型空気調和機においても垂直風向制御板として二枚の翼を有する流体偏向翼を用いたものはあり、主偏向翼に平板翼に近い翼を用いたものや垂直風向制御板が手動式のものがそれであるが、いずれもその偏向範囲が狭く暖房下吹き時に問題があった。また後者は垂直風向制御板により空気調和機の吹出口を閉じることができず、意匠面にも問題があった。
【０００４】
【発明が解決しようとする課題】
流体が粘性を有することは周知であり、この粘性のため壁面の固着条件により速度が急変する物体の表面付近のことを境界層という。流れは主に粘性の作用が無視できる主流と、粘性の影響が集約的に現れるこの境界層とに分けられる。いまある物体(翼)の周りの外部流を考える。この物体の境界層に接する主流にある限度以上に大きな圧力上昇を伴う流れにおいては、図１１に示すように流れが主偏向翼１７表面からはく離してしまう。
【０００５】
また反りを持つ翼においてその背側と腹側とでは、翼前縁から流れが合流する翼後縁までの距離差から翼背側は腹側に対して負圧側となり、翼後縁において流れが滑らかに合流するためには、図１２に示すように背側において大きな圧力上昇を伴う。
【０００６】
空気調和機の垂直風向制御板にこのような反りを持つ流体偏向翼を用いる際、吹出し気流を下に向けようと、翼を回転させ迎え角（α：翼弦の主流に対する角）を徐々に大きしていくと、ある迎え角（αcr：臨界迎え角）において上述した翼背側の圧力上昇が限界を越え、図１３に示すように垂直風向制御板から流れがはく離してしまう。このように流れがはく離した状態では、目標とする風向への風量が大幅に減少し吹出し気流の到達距離が短くなるため、吹出し気流が室内の隅々まで拡散されず快適な室内環境を作り出す空調が行えないばかりか、また空気調和機の重要な問題の一つである結露滴下や露飛びの要因の一つとなる。
【０００７】
結露の原理は次の通りである。空気調和機の垂直風向制御板に吹出し気流のはく離が存在したまま冷房運転やドライ運転を行うと、図１４に示すように、この垂直風向制御板のはく離域に、室内の（吹出し気流に比して）暖かく湿った空気（二次空気）の進入を招く。この二次空気は、吹出し気流によって冷やされた垂直風向制御板に接触し、そこで露点以下まで冷却され含んでいる水分を凝縮し、そのはく離域に結露を生じる。この露を空気調和機内に回収できずにいると、やがて露は成長しついには滴下に至る恐れもある。
【０００８】
よって吹出し気流の下吹き下限の迎え角αdownは臨界迎え角αcrよりも小さい方が望ましく、そのため臨界迎え角αcrが小さいと、快適な室内環境を作り出すために十分な吹出し気流の下吹き角度を得ることができない。よって臨界迎え角αcrを大きくすることは、はく離による大幅な風量減少を抑えつつ吹出し気流の下吹き角度を大きくすることができ、吹出し気流の床面到達性が向上する。すなわち暖房時には下吹きにすることにより暖房快適性が増し、冷房時には露付き耐力が向上する。
【０００９】
この発明は、以上のような問題点を解決するためになされたもので、吹出し気流の下吹き角度を大きくすることにより、暖房下吹き時の快適性を増し、冷房時には露付き耐力が向上する空気調和機を提供することを目的とする。
【００１０】
【課題を解決するための手段】
この発明に係る空気調和機は、空気調和機本体と、本体に設けられ、本体の調和手段により調和された調和空気を室内へ吹き出す吹出口と、吹出口に設けられ、調和空気の垂直方向の風向を制御する垂直風向制御板と、垂直風向制御板に設けられ、調和空気の吹出し方向を偏向する主偏向翼と、垂直風向制御板に設けられ、主偏向翼に対し、主偏向翼との間の流れが縮流となり増速される角度を保つように位置し、主偏向翼の偏向範囲を拡大する補助翼とを備え、主偏向翼の翼弦の吹き出し気流に対する角度を迎え角、翼背側の圧力上昇が限界を越え、主偏向翼から流れがはく離しはじめる迎え角を臨界迎え角と定義し、垂直風向制御板の設定角度を臨界迎え角以下にすることを特徴とする。
【００１１】
この発明に係る空気調和機は、空気調和機本体と、本体に設けられ、本体の調和手段により調和された調和空気を室内へ吹き出す吹出口と、吹出口に設けられ、調和空気の垂直方向の風向を制御する垂直風向制御板と、垂直風向制御板に設けられ、調和空気の吹出し方向を偏向する主偏向翼と、垂直風向制御板に設けられ、主偏向翼に対し所定間隔・所定角度を保つように位置し、主偏向翼の偏向範囲を拡大する補助翼とを備え、主偏向翼の翼弦の吹き出し気流に対する角度を迎え角、翼背側の圧力上昇が限界を越え、主偏向翼から流れがはく離しはじめる迎え角を臨界迎え角と定義し、空気調和機の暖房運転における下吹き時を吹き出し気流の下吹き下限とし、そのときの垂直風向制御板の設定角度を臨界迎え角近傍に設定するものである。
【００１２】
また、この発明に係る空気調和機は、本体の吹出口を形成し、調和手段により調和された調和空気が通過するノズルを備え、主偏向翼は、下記の要素を具備したものである。
イ）ノズル外郭と滑らかに連続し、本体外側に向かい凸な曲面形状の翼背面と；
ロ）翼背面に対向し、同方向に凹な曲面形状の翼腹面と、
ハ）鈍角的に丸みを帯びた翼前縁と；
ニ）鋭角的に閉じた翼後縁と；
ホ）翼弦上における翼前縁から距離が翼弦長に比して十分小さい最大肉厚部と。
【００１３】
また、この発明に係る空気調和機は、床置き据付・天井吊り据付の何れの据付時についても風向を定める本体に対する垂直風向制御板の設定角度が等しく、冷房時・暖房時とも風向調整に関して、その据付形態に関わらず全く同一な垂直風向制御板動作・構成からなる風向制御手段を備えたものである。
【００１４】
また、この発明に係る空気調和機は、冷凍サイクルに圧縮機を備え、垂直風向制御板の位置を、冷房運転時・暖房運転時それぞれ下吹きに向かい、臨界迎え角以内に風向きを上限から下限に複数段階設定し、垂直風向制御板の位置が下限側の段階における冷房・ドライ運転にて、圧縮機の累積運転時間が所定時間に達したとき垂直風向制御板の位置を上限 側の段階に移動することを特徴とする。
【００１５】
また、この発明に係る空気調和機は、冷凍サイクルに圧縮機を備え、垂直風向制御板の位置を、冷房運転時・暖房運転時それぞれ下吹きに向かい、臨界迎え角以内に風向きを上限から下限に複数段階設定し、圧縮機が停止した時、または霜取り時、または圧縮機運転時の室内熱交換器の温度が所定温度以下の時、垂直風向制御板の位置を下限側から上限側に移動することを特徴とする。
【００１６】
【発明の実施の形態】
実施の形態１．
以下、この発明の実施の形態１を図について説明する。図１はこの発明の実施の形態１による空気調和機の床置き据付時の斜視図である。図において、１は空気調和機本体のフロントパネル、２は室内の空気を吸い込む吸込グリル、３は熱交換器（図示せず）で熱交換された空気が通過するノズル、４は室内へ空気を吹き出す吹出口、５は吹出口４に設けられ、垂直方向の風向を制御する垂直風向制御板、６は水平方向の風向を制御する水平風向制御板、７はリモコン信号を受信するリモコン信号受信部、８は吸込グリル２に対向して設けられたエアフィルタである。
【００１７】
図２はこの発明の実施の形態１による空気調和機の天井吊り据付時の斜視図である。符号１〜７は図１と同一であり、説明は省略する。
【００１８】
図３はこの発明の実施の形態１による空気調和機の床置き据付時の側面図である。図において、９は空気調和機本体の背面に設けられたバックパネルである。
【００１９】
図４はこの発明の実施の形態１による空気調和機の床置き据付時における吸込グリル開口時の斜視図である。図に示すように、バックパネル９にモータサポート１０及びファンケーシング１１を設置、それらを基にファンモータ１２と共に遠心ファン１３を配する。
【００２０】
遠心ファン１３によって吸込グリル２から吸い込まれた空気は、エアフィルタ８を介した後、遠心ファン１３により方向を変えられ、熱交換器へ吹出される。そして熱交換器を通過する際、熱伝達により熱交換された吹出し気流は、ノズル３を経て吹出口４より機外へ吹出される。
【００２１】
図５はこの発明の実施の形態１による空気調和機の天井吊り据付時のノズル縦断面図である。図に示すように、ノズル３は、吹出し気流を吹出口４へ導くケーシング１４、吹出し気流を垂直方向に偏向する垂直風向制御板５、垂直風向制御板５を吹出口４の所定位置に固定するためのリブ１５、垂直風向制御板５を回転させるための駆動装置であるステッピングモータ（図示せず）、吹出し気流を水平方向に偏向させる水平風向制御板６、リモコン信号受信部７等から構成されている。図５は垂直風向制御板により吹出口が閉ざされた状態であり、主偏向翼の背側曲面とノズル外郭とが滑らかに連続した、空気調和機本体外側方向に凸な曲面を形成している。
【００２２】
図６はこの発明の実施の形態１による空気調和機の天井吊り据付時の下吹き時垂直風向制御板の位置を示すノズル縦断面図であり、（ａ）は冷房時、（ｂ）は暖房時である。図に示すように、（ａ）冷房時は垂直風向制御板５が略４５度の角度に設定され、（ｂ）暖房時は垂直風向制御板５が垂直に近い角度に設定される。
【００２３】
図７はこの発明の実施の形態１による空気調和機の垂直風向制御板の拡大図である。図に示すように、垂直風向制御板５の主偏向翼１７と補助翼１８をステッピングモータのみで回転可能なように、図７のように垂直風向制御板側板１６及び垂直風向制御板駆動軸１９を設ける。
【００２４】
図８はこの発明の実施の形態１による空気調和機の翼後縁合流地点圧力比を示す図である。図に示すように、主偏向翼１７に補助翼１８を加えることにより、主偏向翼１７腹側と補助翼１８との間の流れが縮流となり増速される（図８：ｖ１→ｖ２）。そのため翼後縁付近の圧力が主偏向翼１７のみの場合に比して低下し(図８：Ｐ１→Ｐ２) 、翼背側の圧力上昇を抑制することができる。
【００２５】
図９はこの発明の実施の形態１による空気調和機の下吹き角度比較図である。主偏向翼１７に補助翼１８を加えることにより、迎え角に対してはく離を遅延する効果があり、臨界迎え角αcrが主偏向翼１７のみの場合に比して大きくなり、はく離による大幅な風量減少を抑えつつ吹出し気流の下吹き角度増大を図れ（図９：θ1→θ2）、吹出し気流の床面到達性が向上する。すなわち暖房下吹き時には暖房快適性が増し、冷房時には露付き耐力が向上する。
【００２６】
そこで床面到達性を要する暖房下吹き時を吹出し気流の下吹き下限とし、その垂直風向制御板５の設定角度を臨界迎え角近傍に設定する。これを含め空気調和機の据付形態に関わらず、冷房時・暖房時とも臨界迎え角以内に風向を５段階設けている。
図１０にその概略図を示す。この場合、冷房時・暖房時の偏向範囲（下吹き角度）は、その吹出し気流の性質の違いのため異なるよう設定しており、すなわち冷房時下吹き角度は暖房時の下吹き角度よりも小さく、図６に示したように当然風向も異なる。
【００２７】
次に主な垂直風向制御板５の制御動作について述べる。以下５段階設けた垂直風向制御板位置を、下吹きに向かい冷房時・暖房時それぞれＣ１〜Ｃ５・Ｈ１〜Ｈ５とする。
（１）風向設定自動
冷房・ドライ運転 − Ｃ１マニュアル設定＊と同一
暖房・送風運転 − Ｈ４マニュアル設定＊と同一
＊マニュアル設定:リモコンによる風向設定
（２）冷房露付き対策
Ｃ４・Ｃ５の状態における冷房・ドライ運転にて、圧縮機の累積運転時間が1時間に達した時、Ｃ１に移動
（３）暖房冷風防止
圧縮機がオフした時または霜取り時、あるいは圧縮機オン時の内管温度が所定温度以下の時、Ｈ１に移動
（４）スウィング機能
冷房運転 − Ｃ１吹き・Ｃ５吹きを所定時間ずつ繰り返す
暖房運転 − Ｈ２吹き・Ｈ４吹きを所定時間ずつ繰り返す
これらをはじめ、冷房時・暖房時とも風向調整に関する風向制御は、その据付形態に関わらず全く同じ垂直風向制御板動作・構成からなる。
【００２８】
【発明の効果】
この発明に係る空気調和機は、空気調和機本体と、本体に設けられ、本体の調和手段により調和された調和空気を室内へ吹き出す吹出口と、吹出口に設けられ、調和空気の垂直方向の風向を制御する垂直風向制御板と、垂直風向制御板に設けられ、調和空気の吹出し方向を偏向する主偏向翼と、垂直風向制御板に設けられ、主偏向翼に対し、主偏向翼との間の流れが縮流となり増速される角度を保つように位置し、主偏向翼の偏向範囲を拡大する補助翼とを備え、主偏向翼の翼弦の吹き出し気流に対する角度を迎え角、翼背側の圧力上昇が限界を越え、主偏向翼から流れがはく離しはじめる迎え角を臨界迎え角と定義し、垂直風向制御板の設定角度を臨界迎え角以下にする構成にしたので、吹出し気流の下吹き角度増大を図ることができ、暖房下吹き時には暖房快適性が増し、冷房時には露付き耐力 が向上する。
【００２９】
この発明に係る空気調和機は、空気調和機本体と、本体に設けられ、本体の調和手段により調和された調和空気を室内へ吹き出す吹出口と、吹出口に設けられ、調和空気の垂直方向の風向を制御する垂直風向制御板と、垂直風向制御板に設けられ、調和空気の吹出し方向を偏向する主偏向翼と、垂直風向制御板に設けられ、主偏向翼に対し所定間隔・所定角度を保つように位置し、主偏向翼の偏向範囲を拡大する補助翼とを備え、主偏向翼の翼弦の吹き出し気流に対する角度を迎え角、翼背側の圧力上昇が限界を越え、主偏向翼から流れがはく離しはじめる迎え角を臨界迎え角と定義し、空気調和機の暖房運転における下吹き時を吹き出し気流の下吹き下限とし、そのときの垂直風向制御板の設定角度を臨界迎え角近傍に設定する構成にしたので、吹出し気流の下吹き角度増大を図ることができ、暖房下吹き時には暖房快適性が増し、冷房時には露付き耐力が向上する。
【００３０】
また、この発明に係る空気調和機は、本体の吹出口を形成し、調和手段により調和された調和空気が通過するノズルを備え、主偏向翼は、ノズル外郭と滑らかに連続し、本体外側に向かい凸な曲面形状の翼背面と、翼背面に対向し、同方向に凹な曲面形状の翼腹面と、鈍角的に丸みを帯びた翼前縁と、鋭角的に閉じた翼後縁と、翼弦上における翼前縁からの距離が翼弦長に比して十分小さい最大肉厚部とを具備した構成にしたので、補助翼と組み合わせることにより、吹出し気流の下吹き角度を増大させることができる。
【００３１】
また、この発明に係る空気調和機は、床置き据付・天井吊り据付の何れの据付時についても風向を定める本体に対する垂直風向制御板の設定角度が等しく、冷房時・暖房時とも風向調整に関して、その据付形態に関わらず全く同一な垂直風向制御板動作・構成からなる風向制御手段を備えた構成にしたので、床置き据付時・天井吊り据付時何れの場合においても、下吹き角度増大効果を同様に得ることができる。
そして冷房時・暖房時とも空調するために適当な風向は、冷房時は上吹き（天井方向）・暖房時は下吹き（床方向）と空気調和機本体に対して変わらない。よってその据付形態により、空気調和機本体に対する垂直風向制御板の設定角度や冷房時・暖房時における風向調整に関して異なる制御を用いる必要はなく、据付形態に関わらず全く同一な垂直風向制御板動作・構成からなる風向制御で済む。これにより据付形態により様々な設定値を設けずに済み、また据付時における設定切換も不要となる。
【００３２】
また、この発明に係る空気調和機は、冷凍サイクルに圧縮機を備え、垂直風向制御板の位置を、冷房運転時・暖房運転時それぞれ下吹きに向かい、臨界迎え角以内に風向きを上限から下限に複数段階設定し、垂直風向制御板の位置が下限側の段階における冷房・ドライ運転にて、圧縮機の累積運転時間が所定時間に達したとき垂直風向制御板の位置を上限側の段階に移動することにより、垂直風向制御板の露付きを抑制できる。
【００３３】
また、この発明に係る空気調和機は、冷凍サイクルに圧縮機を備え、垂直風向制御板の位置を、冷房運転時・暖房運転時それぞれ下吹きに向かい、臨界迎え角以内に風向きを上限から下限に複数段階設定し、圧縮機が停止した時、または霜取り時、または圧縮機運転時の室内熱交換器の温度が所定温度以下の時、垂直風向制御板の位置を下限側から上限側に移動することにより、暖房時冷風が室にいる人にあたるのを防ぐことができる。
【図面の簡単な説明】
【図１】この発明の実施の形態１による空気調和機の床置き据付時における斜視図である。
【図２】この発明の実施の形態１による空気調和機の天井吊り据付時における斜視図である。
【図３】この発明の実施の形態１による空気調和機の床置き据付時における側面図である。
【図４】この発明の実施の形態１による空気調和機の床置き据付時における吸込グリルを開口した状態を示す図である。
【図５】この発明の実施の形態１による空気調和機の天井吊り据付時におけるノズル縦断面図である。
【図６】この発明の実施の形態１による空気調和機の天井吊り据付時における下吹き時の垂直風向制御板位置を示すノズル縦断面図である。
【図７】この発明の実施の形態１による空気調和機の垂直風向制御板を示す図である。
【図８】この発明の実施の形態１による空気調和機の垂直風向制御板の翼後縁合流地点圧力比を示す図である。
【図９】この発明の実施の形態１による空気調和機の下吹き角度比較図である。
【図１０】この発明の実施の形態１による空気調和機の風向５段階概略図である。
【図１１】従来の空気調和機の主偏向翼からの流れのはく離を示す図である。
【図１２】従来の空気調和機の主偏向翼の翼後縁近傍圧力分布図である。
【図１３】従来の空気調和機の主偏向翼の臨界迎え角を示す図である。
【図１４】従来の空気調和機の結露原理概略図(二次空気の進入)である。
【符号の説明】
１ フロントパネル、２ 吸込グリル、３ ノズル、４ 吹出口、５ 垂直風向制御板、６ 水平風向制御板、７ リモコン信号受信部、８ エアフィルタ、９ バックパネル、 １０ モータサポート、１１ ファンケーシング、１２ ファンモータ、１３ 遠心ファン、１４ ケーシング、１５ リブ、１６ 垂直風向制御板側板、１７ 主偏向翼、１８ 補助翼、１９ 垂直風向制御板駆動軸。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an air conditioner and, more particularly, to a control of a wind direction of an airflow blown out from an outlet.
[0002]
[Prior art]
There are many examples of air conditioners equipped with a fluid deflecting wing composed of two wings, a main deflecting wing and an auxiliary wing, as a vertical wind direction control plate. For example, Japanese Patent Application Laid-Open No. H8-14646 discloses a wall-mounted air conditioner. In the horizontal blowing of the cooling operation, the main deflecting wing and the auxiliary wing are overlapped and held in an integrated state by using the connecting means, and the resistance of the two wings is reduced to one sheet to suppress the decrease in the air volume, and At the time of vertical blowing of the heating operation, the separating means for separating the connection of the connecting means and the pressing means for suppressing the separating force of the separating means, the main deflecting wing and the auxiliary wing are opposed to each other at a predetermined interval, and the interval between the wings In order to improve the comfort of the indoor environment, it is necessary to increase the speed of the blown airflow blown from between the wings to extend the reach of the blown airflow, widen the diffusion area, and improve the comfort of the indoor environment. There.
[0003]
Some air conditioners for both floor-standing and ceiling-hanging use a fluid deflecting wing with two wings as a vertical wind direction control plate. Although the control plate is of a manual type, the deflection range of each of the control plates is narrow, and there is a problem at the time of heating under-blowing. In the latter, the outlet of the air conditioner could not be closed by the vertical wind direction control plate, and there was also a problem in design.
[0004]
[Problems to be solved by the invention]
It is well known that fluids have viscosity, and the vicinity of the surface of an object whose velocity changes rapidly due to the sticking condition of the wall surface due to the viscosity is called a boundary layer. The flow is mainly divided into a main flow where the effect of viscosity is negligible and this boundary layer where the effect of viscosity is intensively exhibited. Consider the external flow around an existing object (wing). In a flow accompanied by a pressure rise larger than a certain limit in the main flow in contact with the boundary layer of the object, the flow separates from the surface of the
[0005]
Also, in the case of a warped wing, the back side of the wing has a negative pressure side with respect to the abdomen side due to the difference in distance from the leading edge of the wing to the trailing edge of the wing where the flow merges. , A large pressure rise occurs on the back side as shown in FIG.
[0006]
When using a fluid deflecting wing with such a warp as the vertical wind direction control plate of an air conditioner, the wing is rotated to gradually lower the angle of attack (α: the angle of the chord with the main flow) in order to direct the blown air flow downward. As the pressure increases, the pressure rise on the back side of the blade exceeds the limit at a certain angle of attack (αcr: critical angle of attack), and the flow separates from the vertical wind direction control plate as shown in FIG. In such a state where the flow is separated, the airflow to the target wind direction is greatly reduced and the reach of the blown air flow is shortened, so that the blown air flow is not diffused to every corner of the room and air conditioning that creates a comfortable indoor environment Not only can not be performed, but also one of the important factors of the air conditioner, such as condensation and dripping.
[0007]
The principle of condensation is as follows. When the cooling operation or the dry operation is performed while the blow-off airflow is present on the vertical wind direction control plate of the air conditioner, as shown in FIG. And) the entry of warm, moist air (secondary air). This secondary air comes into contact with the vertical wind direction control plate cooled by the blown airflow, where it cools to below the dew point and condenses the contained moisture, causing dew condensation in the separated area. If this dew cannot be collected in the air conditioner, the dew may eventually grow and eventually drop.
[0008]
Therefore, it is desirable that the lower angle of attack αdown of the lower airflow of the blown airflow be smaller than the critical angle of attack αcr. Therefore, when the critical angle of attack αcr is small, a sufficient lower airflow angle of the blown airflow to create a comfortable indoor environment is obtained. I can't. Therefore, by increasing the critical angle of attack αcr, it is possible to increase the lower blowing angle of the blown airflow while suppressing a large decrease in the amount of airflow due to separation, and to improve the reach of the blown airflow to the floor surface. That is, by blowing downward during heating, heating comfort is increased, and during cooling, the resistance to dew is improved.
[0009]
The present invention has been made in order to solve the above problems, and by increasing the lower blowing angle of the blowing airflow, the comfort at the time of the lower blowing of the heating is increased, and the dew resistance with the cooling is improved at the time of the cooling. An object is to provide an air conditioner.
[0010]
[Means for Solving the Problems]
An air conditioner according to the present invention includes an air conditioner main body, an air outlet provided in the main body, and an air outlet for blowing conditioned air conditioned by the harmony means of the main body into a room, and an air outlet provided in the air outlet, in a vertical direction of the conditioned air. A vertical wind direction control plate for controlling the wind direction, a main deflection blade provided on the vertical wind direction control plate for deflecting the blowout direction of the conditioned air, and a main deflection blade provided on the vertical wind direction control plate for the main deflection blade. An auxiliary wing positioned so as to maintain an angle at which the flow between the main deflecting blades is reduced and accelerated, and an auxiliary wing for expanding the deflection range of the main deflecting wings. The angle of attack at which the pressure rise on the backside exceeds the limit and the flow starts to separate from the main deflection blade is defined as the critical angle of attack, and the angle of setting of the vertical wind direction control plate is set to be equal to or less than the critical angle of attack.
[0011]
An air conditioner according to the present invention includes an air conditioner main body, an air outlet provided in the main body, and an air outlet for blowing conditioned air conditioned by the harmony means of the main body into a room, and an air outlet provided in the air outlet, in a vertical direction of the conditioned air. A vertical wind direction control plate for controlling the wind direction, a main deflection blade provided on the vertical wind direction control plate for deflecting the blowout direction of the conditioned air, and a predetermined interval and a predetermined angle with respect to the main deflection blade provided on the vertical wind direction control plate. Auxiliary wings that are positioned to maintain the deflection range of the main deflecting wing are provided . The angle of attack at which the flow begins to separate from the air conditioner is defined as the critical angle of attack. it shall be set to
[0012]
The air conditioner according to the present invention forms a blow-out port of the body, a nozzle which conditioned air is harmonized passes through conditioning means, main deflection vanes are those provided with the following elements:.
B) The back surface of the wing has a curved surface that is smoothly continuous with the outer periphery of the nozzle and that is convex toward the outside of the main body .
B) a wing abdominal surface facing the back of the wing and concave in the same direction;
C) an obtusely rounded wing leading edge ;
D) a sharply closed wing trailing edge ;
E) The maximum thickness portion where the distance from the leading edge on the chord is sufficiently smaller than the chord length .
[0013]
Further, the air conditioner according to the present invention, the vertical wind direction control plate with respect to the main body that determines the wind direction at the time of installation of any of the floor installation and ceiling hanging installation, the setting angle is the same, with respect to wind direction adjustment during cooling and heating, Regardless of the installation mode, the apparatus is provided with wind direction control means having exactly the same vertical wind direction control plate operation and configuration.
[0014]
Further, the air conditioner according to the present invention includes a compressor in the refrigeration cycle, and moves the position of the vertical wind direction control plate toward downward blowing during the cooling operation and the heating operation, and the wind direction within the critical angle of attack from the upper limit to the lower limit. When the cumulative operation time of the compressor reaches a predetermined time in the cooling / dry operation in the stage where the position of the vertical wind direction control plate is on the lower limit side, the position of the vertical wind direction control plate is shifted to the upper limit stage. It is characterized by moving.
[0015]
Further, the air conditioner according to the present invention includes a compressor in the refrigeration cycle, and moves the position of the vertical wind direction control plate toward downward blowing during the cooling operation and the heating operation, and the wind direction within the critical angle of attack from the upper limit to the lower limit. The vertical wind direction control plate moves from the lower limit to the upper limit when the compressor is stopped, when defrosting, or when the temperature of the indoor heat exchanger during compressor operation is lower than the predetermined temperature. It is characterized by doing.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view when the air conditioner according to Embodiment 1 of the present invention is installed on a floor. In the drawing, 1 is a front panel of the air conditioner main body, 2 is a suction grill for sucking indoor air, 3 is a nozzle through which air heat exchanged by a heat exchanger (not shown) passes, and 4 is air to the room. 5 is a vertical wind direction control plate for controlling the vertical wind direction, 6 is a horizontal wind direction control plate for controlling the horizontal wind direction, and 7 is a remote control signal receiving unit for receiving a remote control signal. , 8 are air filters provided to face the
[0017]
FIG. 2 is a perspective view of the air conditioner according to Embodiment 1 of the present invention when it is suspended from a ceiling. Reference numerals 1 to 7 are the same as those in FIG.
[0018]
FIG. 3 is a side view when the air conditioner according to Embodiment 1 of the present invention is installed on a floor. In the figure,
[0019]
FIG. 4 is a perspective view of the air conditioner according to Embodiment 1 of the present invention when the suction grill is opened when the floor is installed on the floor. As shown in the figure, a
[0020]
The air sucked from the
[0021]
FIG. 5 is a vertical cross-sectional view of the nozzle when the air conditioner according to Embodiment 1 of the present invention is suspended from the ceiling. As shown in the figure, the
[0022]
FIG. 6 is a vertical sectional view of a nozzle showing a position of a vertical wind direction control plate at the time of downward blowing when the air conditioner according to Embodiment 1 of the present invention is suspended from a ceiling, where (a) is for cooling and (b) is for heating. It is time. As shown in the drawing, the vertical wind
[0023]
FIG. 7 is an enlarged view of the vertical wind direction control plate of the air conditioner according to Embodiment 1 of the present invention. As shown in FIG. 7, the vertical wind direction control
[0024]
FIG. 8 is a diagram showing a pressure ratio at a wing trailing edge junction point of the air conditioner according to Embodiment 1 of the present invention. As shown in the figure, by adding the
[0025]
FIG. 9 is a lower blow angle comparison diagram of the air conditioner according to Embodiment 1 of the present invention. The addition of the
[0026]
Therefore, the lower blowing of the blowing airflow is set as the lower blowing limit of the blowing airflow that requires the floor surface reachability, and the set angle of the vertical wind
FIG. 10 shows a schematic diagram thereof. In this case, the deflection range (lower blowing angle) at the time of cooling / heating is set to be different due to the difference in the nature of the blown air flow, that is, the lower blowing angle at the time of cooling is smaller than the lower blowing angle at the time of heating. Naturally, the wind direction is also different as shown in FIG.
[0027]
Next, a control operation of the main vertical wind
(1) Air direction setting automatic cooling / dry operation-Same as C1 manual setting * Heating / blowing operation-Same as H4 manual setting * Same as * Manual setting: Wind direction setting by remote control (2) Cooling dew countermeasure C4 / C5 cooling・ In dry operation, when the cumulative operating time of the compressor reaches 1 hour, move to C1. (3) When the heating / cooling air prevention compressor is turned off or defrosted, or when the compressor is turned on, the inner pipe temperature is predetermined. Moves to H1 when the temperature is below the temperature. (4) Swing function Cooling operation-Heating operation that repeats C1 blowing and C5 blowing for a predetermined time-Heat direction that repeats H2 blowing and H4 blowing for a predetermined time The wind direction control relating to the adjustment consists of exactly the same vertical wind direction control plate operation and configuration irrespective of the installation form.
[0028]
【The invention's effect】
An air conditioner according to the present invention includes an air conditioner main body, an air outlet provided in the main body, and an air outlet for blowing conditioned air conditioned by the harmony means of the main body into a room, and an air outlet provided in the air outlet, in a vertical direction of the conditioned air. A vertical wind direction control plate for controlling the wind direction, a main deflection blade provided on the vertical wind direction control plate for deflecting the blowout direction of the conditioned air, and a main deflection blade provided on the vertical wind direction control plate for the main deflection blade. An auxiliary wing positioned so as to maintain an angle at which the flow between the main deflecting blades is reduced and accelerated, and an auxiliary wing for expanding the deflection range of the main deflecting wings. The angle of attack at which the pressure rise on the backside exceeds the limit and the flow begins to separate from the main deflecting wing is defined as the critical angle of attack, and the vertical wind direction control plate is set at a critical angle of attack or less. The lower blowing angle can be increased, Under blown Sometimes heating comfort is increased, at the time of cooling to improve the dew with strength.
[0029]
An air conditioner according to the present invention includes an air conditioner main body, an air outlet provided in the main body, and an air outlet for blowing conditioned air conditioned by the harmony means of the main body into a room, and an air outlet provided in the air outlet, in a vertical direction of the conditioned air. A vertical wind direction control plate for controlling the wind direction, a main deflection blade provided on the vertical wind direction control plate for deflecting the blowout direction of the conditioned air, and a predetermined interval and a predetermined angle with respect to the main deflection blade provided on the vertical wind direction control plate. Auxiliary wings that are positioned to maintain the deflection range of the main deflecting wing are provided . The angle of attack at which the flow begins to separate from the air conditioner is defined as the critical angle of attack. It was to be set in the configuration In, blowing under blowing angle increase of the air flow can be achieved, sometimes heating comfort blowing under heating is increased, at the time of cooling to improve the dew with strength.
[0030]
The air conditioner according to the present invention forms a blow-out port of the body, a nozzle which conditioned air is harmonized passes through conditioning means, main deflection wing smoothly continuous with the nozzle shell, body outer A wing back surface with a convex curved shape facing the wing, a wing abdominal surface facing the wing back surface and concave in the same direction, a wing leading edge rounded at an obtuse angle, and a wing trailing edge closed at an acute angle In addition, since the distance from the leading edge of the chord on the chord has a maximum thickness portion sufficiently smaller than the chord length, the lower blowing angle of the blown air flow is increased by combining with the auxiliary wing. be able to.
[0031]
Further, the air conditioner according to the present invention, the vertical wind direction control plate with respect to the main body that determines the wind direction at the time of installation of any of the floor installation and ceiling hanging installation, the setting angle is the same, with respect to wind direction adjustment during cooling and heating, Regardless of the installation mode, the configuration is provided with wind direction control means consisting of exactly the same vertical wind direction control plate operation and configuration, so in both cases when installing on the floor or hanging from the ceiling, the effect of increasing the lower blowing angle can be reduced. Can be obtained as well.
The appropriate wind direction for air conditioning during cooling and heating is the same as for the main body of the air conditioner, ie, upward blowing (toward the ceiling) during cooling and downward blowing (toward the floor) during heating. Therefore, according to the installation mode, it is not necessary to use different control for the setting angle of the vertical wind direction control plate with respect to the air conditioner body and the wind direction adjustment at the time of cooling / heating, and the same vertical wind direction control plate operation regardless of the installation mode. The wind direction control consisting of the configuration is sufficient. This eliminates the need to provide various setting values depending on the installation mode, and also eliminates the need to switch settings during installation.
[0032]
Further, the air conditioner according to the present invention includes a compressor in the refrigeration cycle, and moves the position of the vertical wind direction control plate toward downward blowing during the cooling operation and the heating operation, and the wind direction within the critical angle of attack from the upper limit to the lower limit. In the cooling / dry operation in the stage where the position of the vertical wind direction control plate is on the lower limit side, when the cumulative operation time of the compressor reaches a predetermined time, the position of the vertical wind direction control plate is shifted to the upper limit stage. By moving, the dew on the vertical wind direction control plate can be suppressed.
[0033]
In addition, the air conditioner according to the present invention includes a compressor in the refrigeration cycle, and moves the position of the vertical wind direction control plate toward the downward blowing during the cooling operation and the heating operation, and the wind direction within the critical angle of attack from the upper limit to the lower limit. The vertical wind direction control plate moves from the lower limit to the upper limit when the compressor is stopped, when defrosting, or when the temperature of the indoor heat exchanger during compressor operation is lower than the predetermined temperature. By doing so, it is possible to prevent cold air during heating from hitting a person in the room.
[Brief description of the drawings]
FIG. 1 is a perspective view when an air conditioner according to Embodiment 1 of the present invention is installed on a floor.
FIG. 2 is a perspective view of the air conditioner according to Embodiment 1 of the present invention at the time of ceiling suspension installation.
FIG. 3 is a side view when the air conditioner according to Embodiment 1 of the present invention is installed on a floor.
FIG. 4 is a diagram showing a state in which a suction grill is opened when the air conditioner according to Embodiment 1 of the present invention is installed on a floor;
FIG. 5 is a vertical cross-sectional view of a nozzle when the air conditioner according to Embodiment 1 of the present invention is suspended from a ceiling.
FIG. 6 is a vertical sectional view of a nozzle showing a vertical wind direction control plate position at the time of downward blowing at the time of ceiling hanging installation of the air conditioner according to Embodiment 1 of the present invention.
FIG. 7 is a diagram showing a vertical wind direction control plate of the air conditioner according to Embodiment 1 of the present invention.
FIG. 8 is a diagram showing a pressure ratio of a wing trailing edge junction point of a vertical wind direction control plate of the air conditioner according to Embodiment 1 of the present invention.
FIG. 9 is a lower blow angle comparison diagram of the air conditioner according to Embodiment 1 of the present invention.
FIG. 10 is a schematic diagram of five stages of wind directions of the air conditioner according to Embodiment 1 of the present invention.
FIG. 11 is a diagram showing separation of a flow from a main deflection blade of a conventional air conditioner.
FIG. 12 is a pressure distribution diagram near the trailing edge of a main deflection blade of a conventional air conditioner.
FIG. 13 is a diagram showing a critical angle of attack of a main deflection blade of a conventional air conditioner.
FIG. 14 is a schematic diagram of the condensation principle of a conventional air conditioner (entrance of secondary air).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Front panel, 2 intake grills, 3 nozzles, 4 outlets, 5 vertical wind direction control plate, 6 horizontal wind direction control plate, 7 remote control signal receiving section, 8 air filter, 9 back panel, 10 motor support, 11 fan casing, 12 Fan motor, 13 centrifugal fan, 14 casing, 15 rib, 16 vertical wind direction control plate side plate, 17 main deflection wing, 18 auxiliary wing, 19 vertical wind direction control plate drive shaft.
Claims (6)
前記本体に設けられ、前記本体の調和手段により調和された調和空気を室内へ吹き出す吹出口と、An outlet provided in the main body, for blowing conditioned air conditioned by the harmony means of the main body into a room,
前記吹出口に設けられ、前記調和空気の垂直方向の風向を制御する垂直風向制御板と、A vertical wind direction control plate that is provided at the outlet and controls a vertical wind direction of the conditioned air,
前記垂直風向制御板に設けられ、前記調和空気の吹出し方向を偏向する主偏向翼と、A main deflecting wing provided on the vertical wind direction control plate for deflecting a blowing direction of the conditioned air;
前記垂直風向制御板に設けられ、前記主偏向翼に対し、該主偏向翼との間の流れが縮流となり増速される角度を保つように位置し、前記主偏向翼の偏向範囲を拡大する補助翼と、It is provided on the vertical wind direction control plate, and is positioned so as to maintain an angle at which the flow between the main deflecting blade and the main deflecting blade is contracted and accelerated, and the deflection range of the main deflecting blade is expanded. An aileron to
を備え、前記主偏向翼の翼弦の吹き出し気流に対する角度を迎え角、翼背側の圧力上昇が限界を越え、該主偏向翼から流れがはく離しはじめる迎え角を臨界迎え角と定義し、The angle of attack of the chord of the main deflecting wing with respect to the blowing airflow is defined as an angle of attack, the angle of attack at which the pressure rise on the back side of the wing exceeds the limit and the flow begins to separate from the main deflecting wing is defined as a critical angle of attack,
前記垂直風向制御板の設定角度を前記臨界迎え角以下にすることを特徴とする空気調和機。An air conditioner characterized in that a set angle of the vertical wind direction control plate is set to be equal to or less than the critical angle of attack.
前記本体に設けられ、前記本体の調和手段により調和された調和空気を室内へ吹き出す吹出口と、
前記吹出口に設けられ、前記調和空気の垂直方向の風向を制御する垂直風向制御板と、
前記垂直風向制御板に設けられ、前記調和空気の吹出し方向を偏向する主偏向翼と、
前記垂直風向制御板に設けられ、前記主偏向翼に対し所定間隔・所定角度を保つように位置し、前記主偏向翼の偏向範囲を拡大する補助翼と、
を備え、前記主偏向翼の翼弦の吹き出し気流に対する角度を迎え角、翼背側の圧力上昇が限界を越え、該主偏向翼から流れがはく離しはじめる迎え角を臨界迎え角と定義し、
当該空気調和機の暖房運転における下吹き時を吹き出し気流の下吹き下限とし、そのときの前記垂直風向制御板の設定角度を前記臨界迎え角近傍に設定することを特徴とする空気調和機。The air conditioner body,
An outlet provided in the main body, for blowing conditioned air conditioned by the harmony means of the main body into a room,
A vertical wind direction control plate that is provided at the outlet and controls a vertical wind direction of the conditioned air,
A main deflecting wing provided on the vertical wind direction control plate for deflecting a blowing direction of the conditioned air,
An auxiliary wing that is provided on the vertical wind direction control plate and is positioned so as to maintain a predetermined interval and a predetermined angle with respect to the main deflection wing, and expands a deflection range of the main deflection wing;
The angle of attack of the chord of the main deflecting wing with respect to the blown airflow is defined as an angle of attack, and the angle of attack at which the pressure rise on the back side of the wing exceeds the limit and the flow begins to separate from the main deflecting wing is defined as a critical angle of attack.
An air conditioner characterized in that a lower blowing time of a blowing airflow in a heating operation of the air conditioner is set as a lower blowing lower limit, and a set angle of the vertical wind direction control plate at that time is set near the critical angle of attack .
イ）前記ノズル外郭と滑らかに連続し、前記本体外側に向かい凸な曲面形状の翼背面と；
ロ）前記翼背面対向し、同方向に凹な曲面形状の翼腹面と、
ハ）鈍角的に丸みを帯びた翼前縁と；
ニ）鋭角的に閉じた翼後縁と；
ホ）翼弦上における前記翼前縁から距離が翼弦長に比して十分小さい最大肉厚部と。 3. The nozzle according to claim 1, wherein the air outlet of the main body is formed, a nozzle through which the conditioned air conditioned by the harmony means passes, and the main deflecting wing includes the following elements. The air conditioner as described.
B) a wing back surface having a curved surface that is smoothly continuous with the outer periphery of the nozzle and that is convex toward the outside of the main body ;
B) a wing abdominal surface facing the wing back surface and having a concave shape in the same direction;
C) an obtusely rounded wing leading edge ;
D) a sharply closed wing trailing edge ;
E) a maximum thickness portion at a distance from the leading edge of the wing on the chord that is sufficiently smaller than the chord length .
前記垂直風向制御板の位置を、冷房運転時・暖房運転時それぞれ下吹きに向かい、前記臨界迎え角以内に風向きを上限から下限に複数段階設定し、The position of the vertical wind direction control plate, toward the underblowing during the cooling operation and the heating operation, respectively, set the wind direction within the critical angle of attack from the upper limit to the lower limit in multiple stages,
前記垂直風向制御板の位置が前記下限側の段階における冷房・ドライ運転にて、前記圧縮機の累積運転時間が所定時間に達したとき前記垂直風向制御板の位置を前記上限側の段階に移動することを特徴とする請求項１又は請求項２記載の空気調和機。The position of the vertical wind direction control plate is moved to the upper limit stage when the cumulative operation time of the compressor reaches a predetermined time in the cooling / dry operation when the position of the vertical wind direction control plate is at the lower limit stage. The air conditioner according to claim 1 or 2, wherein the air conditioner is operated.
前記垂直風向制御板の位置を、冷房運転時・暖房運転時それぞれ下吹きに向かい、前記臨界迎え角以内に風向きを上限から下限に複数段階設定し、The position of the vertical wind direction control plate, toward the underblowing during the cooling operation and the heating operation, respectively, set the wind direction within the critical angle of attack from the upper limit to the lower limit in multiple stages,
前記圧縮機が停止した時、または霜取り時、または圧縮機運転時の室内熱交換器の温度Temperature of the indoor heat exchanger when the compressor is stopped, or when defrosting, or when operating the compressor が所定温度以下の時、前記垂直風向制御板の位置を前記下限側から前記上限側に移動することを特徴とする請求項１又は請求項２記載の空気調和機。The air conditioner according to claim 1 or 2, wherein the position of the vertical wind direction control plate is moved from the lower limit to the upper limit when the temperature is below a predetermined temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34358196A JP3597960B2 (en) | 1996-12-24 | 1996-12-24 | Air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34358196A JP3597960B2 (en) | 1996-12-24 | 1996-12-24 | Air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10185292A JPH10185292A (en) | 1998-07-14 |
| JP3597960B2 true JP3597960B2 (en) | 2004-12-08 |
Family
ID=18362639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34358196A Expired - Lifetime JP3597960B2 (en) | 1996-12-24 | 1996-12-24 | Air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3597960B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018029828A1 (en) * | 2016-08-10 | 2018-02-15 | 三菱電機株式会社 | Indoor unit of air-conditioner |
-
1996
- 1996-12-24 JP JP34358196A patent/JP3597960B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10185292A (en) | 1998-07-14 |
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