JP3624814B2

JP3624814B2 - Air conditioner decorative panel, air outlet unit, and air conditioner

Info

Publication number: JP3624814B2
Application number: JP2000269702A
Authority: JP
Inventors: 淳一中西; 義和佐藤; 卓平川; 亨繁澤
Original assignee: Daikin Industries Ltd
Current assignee: Daikin Industries Ltd
Priority date: 2000-09-06
Filing date: 2000-09-06
Publication date: 2005-03-02
Anticipated expiration: 2020-09-06
Also published as: EP1316760A1; CN1175222C; CN1342873A; EP1316760B1; EP1316760A4; AU2001282563B2; JP2002081683A; WO2002021052A1; DE60132218D1; DE60132218T2; ES2296785T3; AU8256301A; CN2509504Y

Description

【０００１】
【発明の属する技術分野】
本発明は、空気調和装置の化粧パネル、吹出口ユニット、及び空気調和装置に関し、特に、空気吹出口の構造に関するものである。
【０００２】
【従来の技術】
従来より、例えば天井埋込型やダクト方式の空気調和装置には、空気吹出口に、空調空気の吹き出し方向を上下に変更可能な水平羽根が設けられている。そして、この水平羽根により空調空気の吹き出し方向を暖房運転時には相対的に下向きにする一方、冷房運転時には天井面に対し平行に近くなるよう相対的に上向きにすることで（いわゆる水平吹き出し）、各運転状態において室内の温度分布の均一化を図り、空調効率を高めるようにしている。
【０００３】
ところが、上記の水平吹き出し状態では、吹き出される空調空気中に含まれる微粒子状の塵埃や室内の空気中に含まれる塵埃が天井面に付着して、該天井面が部分的に汚れてしまうことがある。詳しくは、図１０に示すように空気調和装置を水平方向から見たとき、水平吹き出し状態で空気吹出口(a) から吹き出された気流は、その流れに沿って見て略Ｖ字状になる。ここで、空気吹出口(a) の長手方向中央部分では空気の吹き出し流速が速いため、負圧が強くなるが、流速が速くて強い気流であるために空気は吹出口の近くで天井面(b) には付着しない。
【０００４】
一方、空気吹出口(a) の端部からの空気は吹き出し流速が遅いため、中央部の負圧に引っ張られて、吹出口(a) に近いところで天井面(b) に付着する。そして、このとき空気吹出口(a) の端部から吹き出される遅い気流中の塵埃（空気吹出口(a) の端部からの遅い気流の中に含まれる塵埃と、遅い気流が室内の塵埃を巻き込んだものを含む）が天井面(b) に付着する。このため、天井汚れは、空気吹出口(a) から遠くなるにつれて空気吹出口(a) の両端部から中央部に向かうように、ほぼＶ字状でかつ空気吹出口(a) の両側部に近接した領域(D) （図２参照）に多く分布する。
【０００５】
このような汚れを回避するために、特開平３−１６０２６６号公報には、水平羽根に、吹き出し方向を天井面側に移行させる補助フィンを着脱自在に設け、この補助フィンを天井汚れの発生し易さに応じて着脱する技術が提案されている。この公報に記載の空気調和装置では、例えば、室内空気に塵埃が多くて天井汚れの発生し易い環境や、或いは病院のように特に汚れ防止の要求が高い場所では補助フィンを外して、水平羽根を下向きにする一方、天井汚れが発生し難い環境や汚れ防止の要求の低い場所では補助フィンを取付けて、水平吹き出しを行えるようにしている。
【０００６】
【発明が解決しようとする課題】
しかし、上記従来例のような補助フィンを設けたとしても、この補助フィンは天井汚れの発生し易い環境等では外さざるを得ず、結局、このときには空気吹出口から空調空気が常に下向きに吹き出されることになるので、本来、水平吹き出しを行うべき冷房運転時において空調効率の低下を招くばかりでなく、冷風が室内の人に直接吹付けられることによる違和感（いわゆるドラフト感）の問題も生じる。
【０００７】
本発明は、このような問題点に鑑みて創案されたものであり、その目的とするところは、空気吹出口の構造を改良することにより、水平羽根による水平吹き出しを可能としながら、天井面の汚れも防止できるようにすることである。
【０００８】
【課題を解決するための手段】
本発明は、空気吹出口の長手方向両側部分からの空調空気の吹き出し方向が、長手方向中央部分における吹き出し方向よりも下向きになるように、空気吹出口の形状を改良したものである。
【０００９】
具体的に、本発明が講じた解決手段は、天井面(70)から室内空間に向かって空調空気を吹き出す空気吹出口(16)を備え、該空気吹出口(16)に、空調空気の吹き出し方向を調整する水平羽根(18)が設けられた空気調和装置の化粧パネル及び吹出口ユニットと、上記化粧パネル(14)が天井面に沿って取り付けられる空気調和装置と、上記吹出口ユニット(51)が天井面に取り付けられるとともに送風ダクト(52)を介して空気調和装置本体(53)に接続される空気調和装置を前提としている。
【００１０】
そして、上記空気吹出口(16)は、長手方向略両端部（つまり、両端部周辺）が、長手方向中央部よりも空調空気を下向きに吹き出すように構成されている。例えば、吹き出し角度そのものを吹出口(16)の両端部と中央部で変えるだけでなく、水平羽根(18)の吹き出し方向外側よりも内側の吹き出し角度がもともと下向きに設定されているような場合には、空気吹出口(16)の両端部での下向きの風量を多くするようにしてもよい。
【００１１】
上記構成において、空気吹出口(16)には、長手方向略両端部に、空調空気を長手方向中央部よりも下向きに吹き出すように案内するガイド面(16b-s) を設けることができる。
【００１２】
また、上記構成においては、空気吹出口(16)のガイド面(16b-s) を、該空気吹出口(16)の側壁(16a,16b)(16c,16d)の長手方向略両端部に形成し、該空気吹出口(16)の側壁(16a,16b)(16c,16d)の長手方向略両端部(16b-s) と天井面(70)とのなす角度を、空気吹出口(16)の側壁(16a,16b)(16c,16d)の長手方向中央部(16b-c) と天井面(70)とのなす角度よりも大きくなるように構成することができる。
【００１３】
さらに、上記構成において、空気吹出口(16)のガイド面(16b-s) は、水平羽根(18)を水平吹き出し状態に設定したときに水平羽根(18)の上面となる側に対応する側壁(16a,16b) に形成することができる。
【００１４】
また、空気吹出口(16)のガイド面は、水平羽根(18)を水平吹き出し状態に設定したときに水平羽根(18)の下面となる側に対応する側壁(16c,16d) により構成することもできる。なお、この場合、側壁(16c,16d) の角度を長手方向略両端部と中央部で異なるようにするだけでなく、空気吹出口(16)の開口広さを長手方向中央部よりも両端部側で広くなるようにして、下向きの風量を多くするようにしてもよい。つまり、空気吹出口(16)の長手方向略両端部で空調空気を長手方向中央部よりも下向きに吹き出すように案内するガイド面を、水平羽根(18)を水平吹き出し状態に設定したときに水平羽根(18)の下面となる側に対応する側壁(16c,16d) により構成する場合は、一般に天井面(70)に対する該側壁(16c,16d) の角度がもともと比較的大きく設定されるため、空気吹出口(16)の開口広さを長手方向中央部よりも両端部側で広くなるようにしても両端部での下向きの風量を多くすることができる。
【００１５】
以上のように構成すれば、空気吹出口(16)から室内に向かって空調空気が吹き出されるとき、冷房運転時には、吹き出し流速が比較的速い空気吹出口(16)の中央部分で空調空気をほぼ水平に近い方向へ案内しながら、吹き出し流速が比較的遅い空気吹出口(16)の長手方向両端部では、空調空気は長手方向中央部よりも下向きに吹き出される。このため、空気吹出口(16)の両端部において、吹き出し初速度の遅い空調空気が天井面に沿って流れる流量が少なくなる。また、暖房運転時には、水平羽根(18)を下向きに調整することにより、空調空気は空気吹出口(16)の全体から室内へ下向きに吹き出される。
【００１６】
特に、空気吹出口(16)の長手方向略両端部にガイド面(16b-s) を設けて、このガイド面(16b-s) を、空気吹出口(16)の側壁(16a,16b)(16c,16d)の両端部の角度を規制したものとすれば、簡単な構成でありながら、空気吹出口(16)の両端部での下方吹き出しが確実に行われる。
【００１７】
また、水平羽根(18)を水平吹き出し状態に設定したときに水平羽根(18)の上面となる側に対応する側壁(16a,16b) に角度を規制したガイド面(16b-s) を設けると、空気吹出口(16)の両端部において水平羽根(18)にガイド面(16b-s) が接近して両者の間隔が狭くなることで、空調空気が確実に中央部よりも下向きに吹き出される。また、このように水平羽根(18)とガイド面(16b-s) との間隔が狭くなることにより、空気吹出口(16)の両端部から吹き出される空気の流量も低減される。
【００１８】
逆に、水平羽根(18)を水平吹き出し状態に設定したときに水平羽根(18)の下面となる側に対応する側壁(16c,16d) に角度を規制したガイド面を設けると、空気吹出口(16)の両端部において水平羽根(18)とこの側壁(16c,16d) のガイド面との間隔が広くなることで、空調空気が確実に中央部よりも下向きに吹き出される。
【００１９】
また、上記構成において、空気吹出口(16)は、水平羽根(18)を水平吹き出し状態に設定したときに、ガイド面(16b-s) を有する側壁(16a,16b)(16c,16d)の長手方向中央部(16b-c) が、該水平羽根(18)に対応する傾斜となるように構成することが好ましい。さらに、ガイド面(16b-s) を有する空気吹出口(16)の側壁(16a,16b)(16c,16d)は、長手方向中央部(16b-c) から略両端部(16b-s) まで、天井面(70)とのなす角度が連続的に変化するように構成することができる。
【００２０】
以上のように構成すると、冷房運転時などに水平羽根(18)を水平吹き出し状態に設定したときに、空気吹出口(16)から室内に向かって吹き出される空調空気は、空気吹出口(16)の側壁(16a,16b)(16c,16d)の長手方向中央部(16b-c) と水平羽根(18)との間を通って滑らかに向きが変えられて、天井面(70)とほぼ平行な方向に吹き出される。一方、このときにも空気吹出口(16)の両端部では、空調空気は室内に向かって下方へ吹き出される。
【００２１】
また、上記構成において、水平羽根(18)は、長手方向略両端部の気流上流側端縁部において空調空気が通過するように構成することが好ましく、例えば、水平羽根(18)の一部を切り欠いて開口部(18c) を設けることができる。
【００２２】
このように構成すれば、水平羽根(18)を水平吹き出し状態に設定したときに、空気吹出口(16)の両端部の空気が、水平羽根(18)の開口部(18c) などを通過する。このため、空気吹出口(16)の中央部の空気が水平方向に吹き出されるのに対して、両端部の空気はより確実に下向きに吹き出される。
【００２３】
また、本発明の空気調和装置においては、空気吹出口(16)の長手方向略両端部に、長手方向の開口長さが室内空間に面する部分で拡大する拡大部(16L) （図９参照）を有する場合、空気吹出口(16)のガイド面(16b-s) を、空気吹出口(16)の拡大部(16L) にほぼ対応した領域に形成するとよい。
【００２４】
このように空気吹出口(16)に拡大部(16L) がある場合、ガイド面(16b-s) を設けない場合には、空気通路(W) を下方へ流れて水平羽根(18)に当たった空調空気が長手方向中央部側から両端の拡大部(16L) に向かって流れた後、該空調空気がゆっくりと水平に近い方向に吹き出されてしまうが、拡大部(16L) にほぼ対応した領域にガイド面(16b-s) を設けておけば、空気吹出口(16)の両端からの空調空気は、ガイド面(16b-s) を設けない場合よりも下向きに吹き出される。
【００２５】
【発明の効果】
上記解決手段によれば、空調空気の水平吹き出しが要求される冷房運転時に、空気吹出口(16)の長手方向中央部において空気を水平方向に吹き出しながら、長手方向両端部では空気の一部を下向きに吹き出すようにしたために、その長手方向両端部からの空気が天井面(70)に沿って流れにくくなる。したがって、天井面(70)の汚れを防止でき、しかも全体としては水平吹き出しを確保できる。このため、空気調和装置の運転状態に応じた吹き出し方向を確保しながら、天井面(70)の汚れの発生を回避することができる。
【００２６】
また、空気吹出口(16)の長手方向略両端部のガイド面(16b-s) を、空気吹出口(16)の両端部の側壁(16a,16b)(16c,16d)の角度を規制したものとすれば、空気吹出口(16)の両端部での下方吹き出しを確実に行って天井汚れを防止しながら、構成の簡素化を実現できる。
【００２７】
さらに、水平羽根(18)を水平吹き出し状態に設定したときに水平羽根(18)の上面となる側に対応する側壁(16a,16b) にガイド面(16b-s) を設けると、空気吹出口(16)の両端部において水平羽根(18)とガイド面(16b-s) との間隔が狭くなるために、空気吹出口(16)の両端部から吹き出される空気の流量も低減されることになり、空気吹出口(16)の両端部の空気が中央部の空気に巻き込まれにくくなるので、より確実に天井汚れを防止できる。
【００２８】
逆に、水平羽根(18)を水平吹き出し状態に設定したときに水平羽根(18)の下面となる側に対応する側壁(16c,16d) にガイド面を設けても、空気吹出口(16)の両端部から空調空気を下向きに吹き出すことが可能になるため、天井汚れを防止することが可能である。
【００２９】
また、空気吹出口(16)の側壁(16a,16b)(16c,16d)の長手方向中央部(16b-c) が、水平吹き出し状態に設定した該水平羽根(18)に対応する傾斜となるように構成すると、空気吹出口(16)の中央部での水平吹き出しを確実に行いながらも、両端部を下吹き出しとしたことで天井汚れを防止できる。
【００３０】
さらに、空気吹出口(16)の側壁(16a,16b)(16c,16d)を、長手方向中央部(16b-c) から略両端部(16b-s) まで、天井面(70)とのなす角度が連続的に変化するように構成すると、側壁(16b) の角度が滑らかに変化することになり、空気吹出口(16)をデザイン的に優れたものにすることができると共に、空気の吹き出し角度が急に変化する部分がないため、気流の乱れなども生じにくくなる。
【００３１】
また、水平羽根(18)の長手方向略両端部の気流上流側端縁部に、空調空気の通過する開口部(18c) などを設けると、水平羽根(18)を水平吹き出し状態に設定したときに、空気吹出口(16)の両端部の空気が開口部(18c) などを通過することで、空気吹出口(16)の中央部の空気が水平方向に吹き出されるのに対して、両端部の空気はより確実に下向きに吹き出されるので、天井汚れを確実に防止できる。
【００３２】
また、空気吹出口(16)の長手方向の略端部に拡大部(16L) がある場合に、空気吹出口(16)のガイド面(16b-s) を空気吹出口(16)の拡大部(16L) にほぼ対応した領域に形成すると、空気吹出口(16)の両端部から流出する空気が下向きに吹き出されやすくなるので、天井汚れの防止効果を高められる。
【００３３】
【発明の実施の形態】
以下、本発明の実施形態を図面に基づいて詳細に説明する。
【００３４】
図１は本実施形態に係る天井埋込型空気調和装置(1) の構成を示す縦断面図である。同図に示すように、この空気調和装置(1) はケーシング(10)内にファン(20)と熱交換器(30)とを収納してなり、天井板（天井面）(70)に開口する設置用開口(71)に埋め込まれて、天井裏空間に据え付けられている。
【００３５】
上記ケーシング(10)は、下方に向かって開口する箱形の本体ケーシング(11)と、該本体ケーシング(11)の底面開口部を覆う化粧パネル(14)とによって構成され、図示しないが、吊り金具によって上方の梁等に吊り下げられて固定されている。詳しくは、上記本体ケーシング(11)は、正方形の四隅を面取り状に切り欠いて八角形状（図示せず）とした天板(12)と、該天板(12)の外縁部から下方へ延びる側板(13)とから構成されている。上記化粧パネル(14)は略正方形の板状で、上記本体ケーシング(11)の側板(13)の下端部に取付けられている。化粧パネル(14)は、周縁部が天井板(70)の下面に当接するように、該天井板(70)に沿って取り付けられている。
【００３６】
また、空気調和装置(1) を天井に設置した状態の斜視図である図２にも示すように、上記化粧パネル(14)の略中央部には正方形状に開口するように空気吸込口(15)が形成されるとともに、該空気吸込口(15)の四辺のすぐ外側にそれぞれ沿うように細長い４つの空気吹出口(16)が形成されている。そして、上記空気吸込口(15)には、その全面に亘って室内空気に含まれる微粒子状の塵埃等の浮遊物を除去するためのエアフィルタ(17)が設けられ、そのエアフィルタ(17)の下面全体が格子状のフィルタカバーによって支持されている。
【００３７】
化粧パネル(14)の空気吹出口(16)は、空気通路のパネル外周側（図の右側）の側壁である外側案内面(16a,16b) と、パネル内周側（図の左側）の側壁である内側案内面(16c,16d) との間に形成されている。この空気吹出口(16)の長手方向略両端部は、長手方向中央部よりも空調空気を下向きに吹き出すように構成されている。このため、空気吹出口(16)は、長手方向略両端部に、空調空気を長手方向中央部よりも下向きに吹き出すように案内するガイド面(16b-s) を備えている。空気吹出口(16)のガイド面(16b-s) は、該空気吹出口(16)の一方の側壁(16a,16b) の長手方向略両端部により構成され、この側壁(16a,16b) の長手方向略両端部(16b-s) と天井面(70)とのなす角度が、該側壁(16a,16b) の長手方向中央部(16b-c) と天井面(70)とのなす角度よりも大きくなるように構成されている。
【００３８】
具体的には、図３及び図４に拡大して示すように、まず、外側案内面(16a,16b) は、ほぼ鉛直下方に延びる第１外側案内面(16a) と、該第１外側案内面(16a) の下端から化粧パネル(14)の下面までパネル外周側に向かって斜め下方へ傾斜する第２外側案内面(16b) とから構成され、両外側案内面(16a,16b) は互いに滑らかに連接している。
【００３９】
第２外側案内面(16b) は、空気吹出口(16)の長手方向の中央部分に位置する中央部(16b-c) が天井面(70)に対して比較的小さい角度（約３０度）に設定される一方、空気吹出口(16)の長手方向の略両端部に位置する両端部(16b-s) が天井面(70)に対して比較的大きい角度（約６０度）に設定されている。この天井面(70)に対する角度の大きな部分が上記ガイド面(16b-s) に構成されている。
【００４０】
第２外側案内面(16b) は、中央部(16b-c) から両端部(16b-s) に向かって傾斜が徐々に変化し、天井面(70)とのなす角度が連続的に変化している。そして、空気吹出口(16)を下方から見た斜視図である図５に示すように、第２外側案内面(16b) の下端縁(16b-e) は円弧状に形成されている。
【００４１】
一方、図３及び図４に示すように、内側案内面(16c,16d) は、ほぼ鉛直下方に延びる第１内側案内面(16c) と、該第１内側案内面(16c) の下端からパネル外周側に向かって緩やかに斜め下方へ傾斜する第２内側案内面(16d) とから構成され、両内側案内面(16c,16d) が互いに滑らかに連接している。
【００４２】
外側案内面(16a,16b) は化粧パネル(14)の外側部材(14a) に形成され、内側案内面(16c,16d) は化粧パネル(14)の内側部材(14b) に形成されている。空気吹出口(16)は、上述したように、これらの外側案内面(16a,16b) と内側案内面(16c,16d) との間に形成されている。そして、この空気吹出口(16)には、空調空気の吹き出し方向を上下に調整可能な水平羽根(18)が、外側部材(14a) の外側案内面(16a,16b) と内側部材(14b) の内側案内面(16c,16d) との間に配設されている。また、空気吹出口(16)のガイド面(16b-s) は、水平羽根(18)を水平吹き出し状態に設定したときに水平羽根(18)の上面となる側に位置している。
【００４３】
上記水平羽根(18)は、図６に示すような長尺の板部材であり、その幅方向に亘って僅かに湾曲している。水平羽根(18)の長手方向両端部には、それぞれ、該水平羽根(18)の内面側に突出するアーム(18a,18a) が一体的に設けられ、該各アーム(18a) の端部には、それぞれ水平羽根(18)の長手方向に沿って外方へ延びる連結ピン(18b,18b) が形成されている。水平羽根(18)は、上記空気吹出口(16)に、この連結ピン(18b,18b) を中心として揺動可能に取り付けられている。具体的に、この水平羽根(18)は、図示しないモータによって該連結ピン(18b,18b) を回動中心として揺動可能に構成されている。以上の構成において、空調空気を最も下向きに吹き出させるときには、図４に示すように水平羽根(18)を下向きに設定する一方、いわゆる水平吹き出し状態とするときには、図３に示すように水平羽根(18)を上向きに設定する。
【００４４】
水平羽根(18)の長手方向略両端部の気流上流側端縁部には、空調空気の通過する開口部として、切り欠き(18c) が形成されている。この切り欠き(18c) は、水平羽根(18)の長手方向長さの略４分の１の長さで、その長手方向略両端部の気流上流側端縁部に形成されている。この切り欠き(18c) を設けることにより、水平羽根(18)は、中央部(18d) に比べて両端部(18e) の幅が約３分の２程度に狭い形状に形成されている。水平羽根(18)の具体的な寸法は、例えば、全長を約４８０mm、幅（中央部(18d) の幅）を約３７mmとして、両端部(18e) の幅を約２５mm、切り欠き(18c) の長さを約１２０mmにすることができる。
【００４５】
上記外側案内面(16a,16b) は、中央部分が水平羽根(18)の断面形状とほぼ同じように湾曲している（湾曲する形状に限らず、水平羽根(18)に概ね沿った形状であればよい）。つまり、空気吹出口(16)は、水平羽根(18)を水平吹き出し状態に設定したときに、長手方向中央部の側壁(16a,16b-c) が、該水平羽根(18)に対応した傾斜（水平羽根(18)と全体的にほぼ同じ傾斜）となるように構成されている。一方、上記内側案内面(16c,16d) は、全体的に、外側部材(14a) の外側案内面(16a,16b) よりも鉛直下方向に向かって延びるように形成されている。なお、この内側案内面(16c,16d) は、形状を任意に選択すればよい。
【００４６】
そして、以上のような形状の互いに対向する２つの壁面（外側案内面(16a,16b) と内側案内面(16c,16d) ）が、空気吹出口(16)の長手方向（紙面に直交する方向）の全長に亘って形成されていて、両壁面(16a,16b)(16c,16d)に挟まれた空気通路は、空気吹出口(16)に向かう空調空気の流れを整えながらその流れの向きを変更させる助走路の機能を有している。
【００４７】
一方、上記ファン(20)は、本体ケーシング(11)の内部における略中央位置に設けられている。このファンは、シュラウド(21)とハブ(22)との間にブレード(23)が保持されたいわゆるターボファンである。このファン(20)のハブ(22)には、本体ケーシング(11)の天板(12)に取り付けられたファンモータ(25)の駆動軸(26)が挿入固定されていて、該ファンモータ(25)の駆動力によりファン(20)が回転駆動されることで、このファン(20)の下方から吸い込んだ空気を径方向側方に送り出すようになっている。また、ファン(20)の下方には、空気吸込口(15)からケーシング(10)内に流入した空気をファン(20)へと案内するベルマウス(27)が設けられている。
【００４８】
上記熱交換器(30)は、互いに平行に設けられた多数のプレート状のフィン(31)と、該フィン(31)を貫通して設けられる伝熱管(32)とからなるいわゆるクロスフィン熱交換器である。この熱交換器(30)は、上記ファン(20)の周囲を囲うように平面視が矩形の筒状に構成され、図示しない冷媒配管を介して室外機に接続されている。該熱交換器(30)は、冷房運転時は蒸発器として、また暖房運転時は凝縮器として機能し、ファン(20)から送り出されてきた空気の温度状態を調節する。そして、この熱交換器(30)の下方にはドレン水を受けるドレンパン(33)が配設されている。
【００４９】
以上の構成により、空気調和装置(1) の本体ケーシング(11)内には化粧パネル(14)の空気吸込口(15)からエアフィルタ(17)、ベルマウス(27)、ファン(20)及び熱交換器(30)を経て空気吹出口(16)に至る空気流通路(W) が形成されている。そして、空調運転時にファン(20)を駆動すると、空気吸込口(15)からエアフィルタ(17)を介してケーシング(10)内に取り込まれた室内空気がベルマウス(27)、ファン(20)及び熱交換器(30)の順に空気流通路(W) を流れ、該熱交換器(30)において冷媒との間で熱交換を行って温度調節（冷房運転にあっては冷却、暖房運転にあっては加熱）された後、空調空気として空気吹出口(16)から室内空間に吹き出されて、該室内空間の空気調和を行うようになっている。
【００５０】
ここで、暖房運転時等のように空調空気を比較的下向きに吹き出させる要求があるときには、上記図４に示すように水平羽根(18)を略鉛直下向きにして、空調空気を空気吹出口(16)のパネル外周側の側壁(16a,16b) とパネル内周側の側壁(16c,16d) の間で水平羽根(18)に沿わせて、同図に矢印Ｓで示すように下向きに吹き出させる。
【００５１】
一方、冷房運転時等にいわゆる水平吹き出し状態とするときには、上記図３に示すように、水平羽根(18)を上向きに回動させて、該水平羽根(18)の上面(18f) を、空気吹出口(16)の第２外側案内面(16b) の中央部(16b-c) と略平行にさせる。こうすることで、空調空気は、空気吹出口(16)の中央部では水平羽根(18)の中央部(18d) に沿うように湾曲して流れ、その流線の方向が大きくかつ滑らかに変化して、同図に矢印Ｓ１で示すように、空気吹出口(16)のパネル外周側の第２外側案内面(16b-c) と水平羽根(18)との間を通って、空気吹出口(16)から天井板(70)の下面に平行に近い角度（例えば、天井板(70)下面となす角度が略３０°〜３５°）で吹き出される。
【００５２】
また、空気吹出口(16)の両端部では、空気流通路(W) を下向きに流れてきた空調空気の一部は矢印Ｓ１よりも下向きに、矢印Ｓ３の方向へ流れる。これは、空気吹出口(16)の両端部のガイド面(16b-s) と天井面(70)とのなす角度が大きく、水平羽根(18)がガイド面(16b-s) に接近して両者の間隔が狭くなっているためである。また、このように空気吹出口(16)の両端部では、水平羽根(18)とガイド面(16b-s) との間隔が狭くなっているため、矢印Ｓ３の方向へ流れる空気の流量も少なくなる。さらに、空気吹出口(16)の両端部において、空気流通路(W) を下向きに流れてきた空調空気の他の一部は、水平羽根(18)の両端部(18e) の切り欠き(18c) を通過して、図３に矢印Ｓ２で示すように下向きに吹き出される。以上のことから、空気吹出口(16)の両端部では、天井面(70)に沿って空気が流れにくくなる。
【００５３】
したがって、従来から、例えば天井埋込型の空気調和装置において空気の吹き出し速度が低い部分（空気吹出口(16)の両端部分）では、空気流が天井板(70)の下面に付着し易いため、冷房運転時に水平羽根(18)により空調空気の吹き出し方向を相対的に上向けて、天井板(70)の下面に対し例えば３０〜３５°くらいにすると、空気流が天井板(70)の下面に沿って流れるようになり、図２に仮想線で示すような領域(D) に天井汚れが発生し、各空気吹出口ごとに天井汚れがほぼＶ字状に分布することになっていたが、この実施形態に係る空気調和装置(1) によれば、特に空調空気の水平吹き出しが要求される冷房運転時において、空気吹出口(16)の両端部分からの吹き出し空気が天井板(70)の下面に沿って流れにくくなるため、該空気吹出口(16)からの空調空気の吹き出し方向を空気吹出口の中央部で水平羽根(18)により天井板(70)下面に対し例えば３０〜３５°くらいまで近づけても、天井汚れの発生を防止することができる。
【００５４】
したがって、この実施形態の空気調和装置(1) によれば、特に空調空気の水平吹き出しが要求される冷房運転時において、天井の汚れを防止しながら、空調空気の吹き出し方向を従来までと比べて水平方向に近づけることができ、これにより、空調効率を確保しかつ室内居住者の違和感（ドラフト感）を解消できる。
【００５５】
また、本実施形態では、水平羽根(18)の切り欠き(18c) を、水平羽根(18)の両端部(18d) の約４分の１程度の領域にのみ形成しているので、天井汚れを防止しながら、全体としては十分に水平吹き出しを満足できる。
【００５６】
【発明のその他の実施の形態】
尚、本発明は上記実施形態に限定されず、その他の種々の実施形態を包含するものである。
【００５７】
例えば、上記実施形態では、空気吹出口(16)の外側案内面(16a,16b) の略両端部にのみガイド面(16b-s) を設けているが、内側案内面(16c,16d) の両端部の側壁も傾斜を変化させて、ガイド面の機能を持たせてもよい。例えば、空気吹出口(16)の内側案内面(16c,16d) の略両端部と天井面とのなす角度が、内側案内面(16c,16d) の中央部と天井面のなす角度よりも大きくなるようにして、内側案内面(16c,16d) の略両端部をガイド面としてもよい。このようにしても、空気吹出口(16)の両端部から空気を下向きに吹き出せるので、天井汚れを防止できる。
【００５８】
また、上記実施形態では、空気吹出口(16)の外側案内面(16a,16b) を中央部と両端部とで角度が連続的に変化するようにしているが、段階的に変化するように構成するなど、他の態様も可能である。その場合、第２外側案内面(16b) や第２内側案内面(16d) の下端縁は円弧状でなく、台形状やその他の形状となってもよい。
【００５９】
また、例えば、吹き出し角度そのものを吹出口(16)の両端部と中央部で変えるだけでなく、上記実施形態のように水平羽根(18)の吹き出し方向外側（外側案内面(16a,16b) 側）よりも吹き出し方向内側（内側案内面(16c,16d) 側）の吹き出し角度がもともと下向きに設定されているような場合には、空気吹出口(16)の両端部での下向きの風量を多くするようにしてもよい。つまり、内側案内面(16c,16d) の角度を長手方向略両端部と中央部で異なるようにするだけでなく、空気吹出口(16)の開口広さを長手方向中央部よりも両端部側で広くなるようにして、下向きの風量を多くするようにしてもよい。
【００６０】
このように、本発明は、空気吹出口(16)の長手方向略両端部が長手方向中央部よりも空調空気を下向きに吹き出すように構成されていればよく、また、そのように構成されている限りはガイド面以外の手段を用いてもよい。
【００６１】
また、上記実施形態では、本発明を、ターボファンを備えて４方向に空調空気を吹き出す、いわゆる天井埋込４方吹き型の空気調和装置(1) に適用したが、これに限らず、例えば、２方向に空調空気を吹き出すいわゆる天井埋込２方吹き型の空気調和装置にも適用することができる。
【００６２】
さらに、本発明は、天井埋込型の空気調和装置に限らず、ダクト方式の空気調和装置にも適用できる。図７に示すように、ダクト方式の空気調和装置(50)は、天井板(70)に取り付けられる吹出口ユニット(51)が、送風ダクト(52)を介して、ビルの屋上などに設置される空気調和装置本体(53)に接続された空気調和装置である。この空気調和装置(50)の吹出口ユニット(51)においても、空気吹出口(16)の長手方向略端部にガイド面(16b-s) を設けるなどして吹き出し方向を規制することにより、上記実施形態と同様の効果を奏することができる。
【００６３】
また、上記実施形態では、水平羽根(18)の略両端部(18e) に開口部として切り欠き(18c) を形成しているが、開口部(18c) は必ずしも設けなくてもよい。開口部を設ける場合でも、切り欠き(18c) の代わりに水平羽根(18)に貫通穴などを設けてもよく、水平吹き出しの際に空気吹出口(16)の両端部から下向きに空気を吹き出す構成になっていればよい。つまり、水平羽根(18)は、長手方向中央部よりも両端部において、水平羽根(18)の負圧面側に流れる気流（水平羽根(18)の背面側（空気吹出口(16)の内側案内面(16c,16d) 側、つまり吹き出し方向内側）の下向き気流（図３(S2)参照））が多くなるような形状に気流上流側端縁部が形成されたものにすることが好ましいが、必ずしもそうしなくてもよい。
【００６４】
また、水平羽根(18)等の形状及び寸法や、切り欠き（開口部）(18c) の形状や寸法は単なる一例であり、実施品の形状等に合わせて適宜変更することは当然可能である。
【００６５】
開口部(18c) を切り欠きとする場合、この切り欠き(18c) は例えば図８（ａ）〜図８（ｃ）に水平羽根(18)の端部を示すような形状にすることができる。図８（ａ）は、水平羽根(18)の長手方向略両端部の気流上流側端縁部を円弧状に形成した例、図８（ｂ）はその気流上流側端縁部を直線状に斜めに形成した例、図８（ｃ）はその気流上流側端縁部を図８（ａ）とは逆向きの円弧状に形成した例である。
【００６６】
さらに、開口部(18c) の代わりに、水平羽根(18)の端部を図８（ｄ）に示すように、水平羽根(18)の長手方向中央部から両端部に向かって気流上流側端縁部が漸次立ち上がるように、３次元的に捻られた形状としてもよい。この場合には、水平羽根(18)の端部において空気が剥離しにくくなるため、水平羽根(18)の端部に周囲の暖気を巻き込みにくくなり、結露が生じにくくなる利点もある。
【００６７】
また、図９に示すように、例えば天井埋込型空気調和装置では、本体ケーシング(11)内の隅角部に配管や電装品ボックスが配置される一方、化粧パネル(14)は外観上の理由から吹き出し開口形状を４つとも同じにする必要があるため、空気通路の長手方向の開口長さが本体ケーシング(11)側と化粧パネル(14)側とで異なる場合がある。このような場合、空気吹出口(16)には、長手方向の端部に、空気通路の開口長さを室内空間に面する部分で該空気吹出口(16)の長手方向に拡大する拡大部(16L) が形成されることになる。また、拡大部(16L) の長さは、空気吹出口により様々である。
【００６８】
そこで、上記ガイド面(16b-s) と、水平羽根(18)の長手方向略両端部の気流上流側端縁部に形成される切り欠きなどの開口部(18c) または開口部(18c) に相当する部分は、空気吹出口(16)の拡大部(16L) にほぼ対応する領域に形成するとよい。ガイド面(16b-s) や開口部(18c) などがない場合や短い場合には水平羽根(18)の両端部で吹き出し空気が滞留しやすくなって拡大部(16L) から空気が水平方向に吹き出されやすくなるが、これらを拡大部(16L) にほぼ対応するように形成すると、水平羽根(18)の長手方向の両端部で拡大部(16L) 内に滞留する風量を低減できるため、天井汚れも防止できる。なお、このことはダクト方式の空気調和装置(50)でも同様である。
【図面の簡単な説明】
【図１】本発明の実施形態に係る天井埋込型空気調和装置の概略断面図である。
【図２】天井に設置した空気調和装置を下方から見た斜視図である。
【図３】空気吹出口の拡大構造図であり、空調空気の吹き出し方向を水平吹き出しに設定した状態を示している。
【図４】図３において、空調空気の吹き出し方向を下方吹き出しに設定した状態を示す図である。
【図５】空気吹出口を下方から見た斜視図である。
【図６】水平羽根の斜視図である。
【図７】ダクト方式の空気調和装置の概略構成図である。
【図８】図８（ａ）から図８（ｄ）は、水平羽根の開口部の形状を示す斜視図である。
【図９】空気吹出口に拡大部が設けられている場合の部分斜視図である。
【図１０】従来例の空気調和装置を側方から見て、空気吹出口からの空調空気の吹き出し気流状態を示す説明図である。
【符号の説明】
(1) 空気調和装置
(10) ケーシング
(11) 本体ケーシング
(14) 化粧パネル
(15) 空気吸込口
(16) 空気吹出口
(16a,16b) 側壁
(16b-c) 側壁の長手方向中央部
(16b-s) 側壁の長手方向両端部（ガイド面）
(16L) 拡大部
(18) 水平羽根
(18c) 切り欠き（開口部）
(20) ファン
(30) 熱交換機
(50) 空気調和装置
(51) 吹出口ユニット
(52) 送風ダクト
(53) 空気調和装置本体
(70) 天井板（天井面）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a decorative panel, an air outlet unit, and an air conditioner for an air conditioner, and more particularly to the structure of an air air outlet.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, for example, in ceiling-embedded or duct type air conditioners, horizontal blades that can change the blowing direction of conditioned air up and down are provided at an air outlet. The horizontal blades cause the air-conditioning air blowing direction to be relatively downward during heating operation, while being relatively upward so as to be parallel to the ceiling surface during cooling operation (so-called horizontal blowing), In the operating state, the temperature distribution in the room is made uniform to improve the air conditioning efficiency.
[0003]
However, in the above horizontal blowing state, particulate dust contained in the conditioned air blown out or dust contained in the indoor air adheres to the ceiling surface, and the ceiling surface is partially contaminated. There is. Specifically, as shown in FIG. 10, when the air conditioner is viewed from the horizontal direction, the air flow blown out from the air outlet (a) in the horizontal blowing state is substantially V-shaped when viewed along the flow. . Here, the air blowout flow velocity is high at the central portion in the longitudinal direction of the air outlet (a), so the negative pressure becomes strong.However, since the flow velocity is high and the airflow is strong, the air is close to the ceiling surface ( It does not adhere to b).
[0004]
On the other hand, the air blown from the end of the air outlet (a) has a low blowing flow velocity, and is pulled by the negative pressure at the center and adheres to the ceiling surface (b) near the outlet (a). At this time, the dust in the slow airflow blown out from the end of the air outlet (a) (the dust contained in the slow airflow from the end of the air outlet (a) and the slow airflow Adheres to the ceiling surface (b). Therefore, the dirt on the ceiling is substantially V-shaped and is located on both sides of the air outlet (a) so that the distance from the air outlet (a) increases toward both ends of the air outlet (a). Many are distributed in the adjacent region (D) (see FIG. 2).
[0005]
In order to avoid such contamination, Japanese Patent Laid-Open No. 3-160266 discloses that an auxiliary fin for shifting the blowing direction to the ceiling surface side is detachably provided on the horizontal blade, and this auxiliary fin is caused to generate ceiling contamination. Techniques for attaching and detaching according to ease have been proposed. In the air conditioner described in this publication, for example, in an environment where there is a lot of dust in the room air and where ceiling contamination is likely to occur, or in places where there is a particularly high demand for contamination prevention such as hospitals, the auxiliary fins are removed and the horizontal blades On the other hand, auxiliary fins are attached in an environment where ceiling contamination is unlikely to occur or where there is a low demand for contamination prevention, so that horizontal blowing can be performed.
[0006]
[Problems to be solved by the invention]
However, even if the auxiliary fin as in the above-mentioned conventional example is provided, this auxiliary fin must be removed in an environment where ceiling dirt is likely to occur, and eventually, at this time, the conditioned air always blows downward from the air outlet. As a result, the air-conditioning efficiency is originally lowered during cooling operation in which horizontal blowing should be performed, and a problem of uncomfortable feeling (so-called draft feeling) due to direct blowing of cold air to indoor people also occurs. .
[0007]
The present invention was devised in view of such problems, and the object of the present invention is to improve the structure of the air outlet, thereby enabling horizontal blowing by the horizontal blades and the ceiling surface. It is to be able to prevent dirt.
[0008]
[Means for Solving the Problems]
In the present invention, the shape of the air outlet is improved so that the blowing direction of the conditioned air from the both sides in the longitudinal direction of the air outlet is lower than the blowing direction in the central portion in the longitudinal direction.
[0009]
Specifically, the solution provided by the present invention includes an air outlet (16) that blows out conditioned air from the ceiling surface (70) toward the indoor space, and the air outlet (16) blows out conditioned air. A decorative panel and an outlet unit of an air conditioner provided with horizontal blades (18) for adjusting the direction, an air conditioner to which the decorative panel (14) is attached along a ceiling surface, and the outlet unit (51 ) Is attached to the ceiling surface and connected to the air conditioner body (53) via the air duct (52).
[0010]
And the said air blower outlet (16) is comprised so that air-conditioning air may be blown down rather than the longitudinal direction center part at the substantially longitudinal both ends (namely, both edge periphery). For example, in addition to changing the blowing angle itself at both ends and the center of the outlet (16), the blowing angle inside the blowing direction outside the blowing direction of the horizontal blade (18) is originally set downward. May be configured to increase the downward air volume at both ends of the air outlet (16).
[0011]
In the above configuration, the air outlet (16) can be provided with guide surfaces (16b-s) for guiding the conditioned air to be blown downward from the longitudinal central portion at substantially both ends in the longitudinal direction.
[0012]
Further, in the above configuration, the guide surfaces (16b-s) of the air outlet (16) are formed at substantially both ends in the longitudinal direction of the side walls (16a, 16b) (16c, 16d) of the air outlet (16). The angle formed between the substantially longitudinal ends (16b-s) and the ceiling surface (70) of the side walls (16a, 16b) (16c, 16d) of the air outlet (16) is defined as the air outlet (16). The side walls (16a, 16b) (16c, 16d) can be configured to be larger than the angle formed by the central portion (16b-c) in the longitudinal direction and the ceiling surface (70).
[0013]
Further, in the above configuration, the guide surface (16b-s) of the air outlet (16) is a side wall corresponding to a side that becomes an upper surface of the horizontal blade (18) when the horizontal blade (18) is set in a horizontal blowing state. (16a, 16b).
[0014]
In addition, the guide surface of the air outlet (16) shall be constituted by the side walls (16c, 16d) corresponding to the lower surface side of the horizontal blade (18) when the horizontal blade (18) is set in the horizontal blowing state. You can also. In this case, the angle of the side walls (16c, 16d) is not only made different between the substantially longitudinal end portions and the central portion, but also the opening width of the air outlet (16) is made larger than the longitudinal central portion. It may be widened on the side to increase the downward air volume. In other words, the guide surfaces that guide the conditioned air to be blown downward from the longitudinal center at the substantially longitudinal ends of the air outlet (16) are set horizontally when the horizontal blade (18) is set in the horizontal blowing state. When configured with side walls (16c, 16d) corresponding to the lower surface side of the blade (18), since the angle of the side walls (16c, 16d) with respect to the ceiling surface (70) is generally set relatively large, Even if the opening area of the air outlet (16) is made wider at both end portions than in the central portion in the longitudinal direction, the downward air volume at both end portions can be increased.
[0015]
With the above configuration, when the conditioned air is blown out from the air blower outlet (16) to the room, during the cooling operation, the conditioned air is blown at the central portion of the air blower outlet (16) having a relatively high blowing flow rate. At the both ends in the longitudinal direction of the air outlet (16) where the blowout flow velocity is relatively slow while guiding in a substantially horizontal direction, the conditioned air is blown downward from the longitudinal center. For this reason, at both ends of the air outlet (16), the flow rate of the conditioned air having a slow initial blowing speed along the ceiling surface is reduced. Further, during heating operation, the conditioned air is blown downward from the entire air outlet (16) into the room by adjusting the horizontal blade (18) downward.
[0016]
In particular, guide surfaces (16b-s) are provided at substantially both ends in the longitudinal direction of the air outlet (16), and the guide surfaces (16b-s) are connected to the side walls (16a, 16b) ( If the angles at both ends of 16c and 16d) are regulated, the downward blowing at the both ends of the air outlet (16) is reliably performed with a simple configuration.
[0017]
Further, when the horizontal blade (18) is set in the horizontal blowing state, a guide surface (16b-s) with a regulated angle is provided on the side wall (16a, 16b) corresponding to the upper surface of the horizontal blade (18). Since the guide surface (16b-s) approaches the horizontal blade (18) at both ends of the air outlet (16) and the distance between the two narrows, the conditioned air is reliably blown downward from the center. The In addition, since the distance between the horizontal blade (18) and the guide surface (16b-s) becomes narrow in this way, the flow rate of air blown from both ends of the air outlet (16) is also reduced.
[0018]
Conversely, when a guide surface with a restricted angle is provided on the side wall (16c, 16d) corresponding to the lower surface of the horizontal blade (18) when the horizontal blade (18) is set in a horizontal blowing state, the air outlet Since the distance between the horizontal blade (18) and the guide surface of the side wall (16c, 16d) becomes wider at both ends of (16), the conditioned air is surely blown out downward from the central portion.
[0019]
In the above configuration, the air outlet (16) is formed on the side walls (16a, 16b) (16c, 16d) having the guide surfaces (16b-s) when the horizontal blade (18) is set in the horizontal blowing state. It is preferable that the central portion (16b-c) in the longitudinal direction has an inclination corresponding to the horizontal blade (18). Further, the side wall (16a, 16b) (16c, 16d) of the air outlet (16) having the guide surface (16b-s) extends from the longitudinal center (16b-c) to substantially both ends (16b-s). The angle formed with the ceiling surface (70) can be changed continuously.
[0020]
With the above configuration, when the horizontal blade (18) is set in the horizontal blowing state during cooling operation or the like, the conditioned air blown out from the air outlet (16) into the room is the air outlet (16 ) Of the side wall (16a, 16b) (16c, 16d) of the side wall (16b-c) and the horizontal blades (18) are smoothly changed in direction to almost the ceiling surface (70). Blow out in parallel direction. On the other hand, also at this time, the conditioned air is blown downward toward the room at both ends of the air outlet (16).
[0021]
Further, in the above configuration, the horizontal blade (18) is preferably configured so that conditioned air passes at the upstream end edge of the airflow at substantially both ends in the longitudinal direction, for example, a part of the horizontal blade (18) An opening (18c) can be provided by notching.
[0022]
With this configuration, when the horizontal blade (18) is set in the horizontal blowing state, the air at both ends of the air outlet (16) passes through the opening (18c) of the horizontal blade (18) and the like. . For this reason, the air at the center of the air outlet (16) is blown out in the horizontal direction, whereas the air at both ends is blown down more reliably.
[0023]
Further, in the air conditioner of the present invention, an enlarged portion (16L) in which the opening length in the longitudinal direction expands at a portion facing the indoor space at substantially both ends in the longitudinal direction of the air outlet (16) (see FIG. 9). ), The guide surface (16b-s) of the air outlet (16) may be formed in a region substantially corresponding to the enlarged portion (16L) of the air outlet (16).
[0024]
In this way, when the air outlet (16) has an enlarged part (16L) and the guide surface (16b-s) is not provided, it flows downward through the air passage (W) and hits the horizontal blade (18). After the conditioned air flows from the central part of the longitudinal direction toward the enlarged parts (16L) at both ends, the conditioned air is slowly blown out in the direction close to the horizontal, but it almost corresponds to the enlarged part (16L). If the guide surface (16b-s) is provided in the region, the conditioned air from both ends of the air outlet (16) is blown downward as compared with the case where the guide surface (16b-s) is not provided.
[0025]
【The invention's effect】
According to the above solution, at the time of cooling operation in which horizontal blowing of conditioned air is required, while blowing air horizontally at the longitudinal center of the air outlet (16), a part of the air is discharged at both longitudinal ends. Since the air is blown downward, the air from both ends in the longitudinal direction hardly flows along the ceiling surface (70). Therefore, it is possible to prevent the ceiling surface (70) from being soiled and to secure a horizontal blowing as a whole. For this reason, generation | occurrence | production of the stain | pollution | contamination of a ceiling surface (70) can be avoided, ensuring the blowing direction according to the driving | running state of an air conditioning apparatus.
[0026]
In addition, the guide surfaces (16b-s) at both ends in the longitudinal direction of the air outlet (16) are restricted in the angle of the side walls (16a, 16b) (16c, 16d) at both ends of the air outlet (16). If so, it is possible to simplify the configuration while reliably performing downward blowing at both ends of the air outlet (16) to prevent ceiling contamination.
[0027]
Further, when the guide surface (16b-s) is provided on the side wall (16a, 16b) corresponding to the upper surface of the horizontal blade (18) when the horizontal blade (18) is set in the horizontal blowing state, the air outlet Since the gap between the horizontal blade (18) and the guide surface (16b-s) is narrow at both ends of (16), the flow rate of air blown from both ends of the air outlet (16) is also reduced. Thus, the air at both ends of the air outlet (16) is less likely to be engulfed by the air at the center, so that it is possible to more reliably prevent ceiling contamination.
[0028]
Conversely, when the horizontal blade (18) is set in the horizontal blowing state, the air outlet (16) may be provided with a guide surface on the side wall (16c, 16d) corresponding to the lower surface of the horizontal blade (18). Since the conditioned air can be blown downward from both ends of the ceiling, dirt on the ceiling can be prevented.
[0029]
Further, the longitudinal center (16b-c) of the side wall (16a, 16b) (16c, 16d) of the air outlet (16) has an inclination corresponding to the horizontal blade (18) set in the horizontal blowing state. If comprised in this way, while performing the horizontal blowing in the center part of an air blower outlet (16) reliably, ceiling dirt can be prevented by making both ends into a lower blowing.
[0030]
Further, the side wall (16a, 16b) (16c, 16d) of the air outlet (16) is formed with the ceiling surface (70) from the central portion (16b-c) in the longitudinal direction to substantially both end portions (16b-s). If the angle is configured to change continuously, the angle of the side wall (16b) changes smoothly, and the air outlet (16) can be made excellent in design, and the air Since there is no portion where the angle changes suddenly, turbulence or the like of airflow is less likely to occur.
[0031]
Also, if the opening (18c) through which air-conditioned air passes is provided at the upstream edge of the airflow at both ends in the longitudinal direction of the horizontal blade (18), the horizontal blade (18) is set in the horizontal blowing state. The air at both ends of the air outlet (16) passes through the opening (18c) etc., so that the air at the center of the air outlet (16) is blown out in the horizontal direction. Since the air in the section is blown down more reliably, it is possible to reliably prevent ceiling dirt.
[0032]
In addition, when there is an enlarged portion (16L) at the longitudinal end of the air outlet (16), the guide surface (16b-s) of the air outlet (16) is connected to the enlarged portion of the air outlet (16). If it is formed in a region substantially corresponding to (16L), the air flowing out from both ends of the air outlet (16) is likely to be blown downward, so that the effect of preventing ceiling dirt can be enhanced.
[0033]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0034]
FIG. 1 is a longitudinal sectional view showing a configuration of a ceiling-embedded air conditioner (1) according to this embodiment. As shown in the figure, this air conditioner (1) has a fan (20) and a heat exchanger (30) housed in a casing (10), and is open to a ceiling plate (ceiling surface) (70). Embedded in the installation opening (71) to be installed in the ceiling space.
[0035]
The casing (10) is composed of a box-shaped main body casing (11) that opens downward, and a decorative panel (14) that covers the bottom opening of the main body casing (11). It is suspended and fixed to the upper beam by a metal fitting. Specifically, the main body casing (11) has a top plate (12) which is cut into four corners of a square in a chamfered shape and has an octagon shape (not shown), and extends downward from an outer edge portion of the top plate (12). It consists of a side plate (13). The decorative panel (14) has a substantially square plate shape and is attached to the lower end of the side plate (13) of the main body casing (11). The decorative panel (14) is attached along the ceiling plate (70) so that the peripheral edge abuts on the lower surface of the ceiling plate (70).
[0036]
In addition, as shown in FIG. 2 which is a perspective view of the air conditioner (1) installed on the ceiling, an air suction port (opening in a square shape at the substantially central portion of the decorative panel (14)). 15) is formed, and four elongated air outlets (16) are formed so as to be along the outer sides of the four sides of the air suction port (15). The air suction port (15) is provided with an air filter (17) for removing suspended matters such as particulate dust contained in room air over the entire surface, and the air filter (17) Is entirely supported by a grid-like filter cover.
[0037]
The air outlet (16) of the decorative panel (14) has an outer guide surface (16a, 16b) which is a side wall on the outer peripheral side of the air passage (right side in the figure) and a side wall on the inner peripheral side of the panel (left side in the figure). Are formed between the inner guide surfaces (16c, 16d). Both ends in the longitudinal direction of the air outlet (16) are configured to blow conditioned air downward from the center in the longitudinal direction. For this reason, the air outlet (16) is provided with guide surfaces (16b-s) for guiding the conditioned air to be blown downward from the central portion in the longitudinal direction at substantially both ends in the longitudinal direction. The guide surface (16b-s) of the air outlet (16) is constituted by substantially both ends in the longitudinal direction of one side wall (16a, 16b) of the air outlet (16), and the side surface (16a, 16b) The angle formed between the substantially longitudinal ends (16b-s) and the ceiling surface (70) is determined by the angle formed between the longitudinal center portion (16b-c) of the side walls (16a, 16b) and the ceiling surface (70). Is configured to be larger.
[0038]
Specifically, as shown in an enlarged view in FIGS. 3 and 4, first, the outer guide surfaces (16a, 16b) include a first outer guide surface (16a) extending substantially vertically downward and the first outer guide surface. A second outer guide surface (16b) inclined obliquely downward toward the outer periphery of the panel from the lower end of the surface (16a) to the lower surface of the decorative panel (14), the two outer guide surfaces (16a, 16b) being mutually It is connected smoothly.
[0039]
The second outer guide surface (16b) has a relatively small angle (about 30 degrees) with respect to the ceiling surface (70) of the central portion (16b-c) located at the central portion in the longitudinal direction of the air outlet (16). On the other hand, both ends (16b-s) located at substantially both ends in the longitudinal direction of the air outlet (16) are set at a relatively large angle (about 60 degrees) with respect to the ceiling surface (70). ing. A portion having a large angle with respect to the ceiling surface (70) is formed on the guide surface (16b-s).
[0040]
Second outer guide surface (16b) includes a central portion (16b-c) inclination gradually changes toward both ends (16b-s) from the angle between the ceiling surface (70) continuously change ing. And as shown in FIG. 5 which is the perspective view which looked at the air blower outlet (16) from the downward | lower direction, the lower end edge (16b-e) of the 2nd outer side guide surface (16b) is formed in circular arc shape.
[0041]
On the other hand, as shown in FIGS. 3 and 4, the inner guide surfaces (16c, 16d) are formed from the first inner guide surface (16c) extending substantially vertically downward and from the lower end of the first inner guide surface (16c) to the panel. The second inner guide surface (16d) is gently inclined obliquely downward toward the outer peripheral side, and both the inner guide surfaces (16c, 16d) are smoothly connected to each other.
[0042]
The outer guide surfaces (16a, 16b) are formed on the outer member (14a) of the decorative panel (14), and the inner guide surfaces (16c, 16d) are formed on the inner member (14b) of the decorative panel (14). As described above, the air outlet (16) is formed between the outer guide surface (16a, 16b) and the inner guide surface (16c, 16d). The air outlet (16) has a horizontal blade (18) capable of adjusting the blowing direction of the conditioned air up and down, the outer guide surface (16a, 16b) and the inner member (14b) of the outer member (14a). Between the inner guide surfaces (16c, 16d). Further, the guide surface (16b-s) of the air outlet (16) is positioned on the side that becomes the upper surface of the horizontal blade (18) when the horizontal blade (18) is set in the horizontal blowing state.
[0043]
The horizontal blade (18) is a long plate member as shown in FIG. 6, and is slightly curved in the width direction. At both ends in the longitudinal direction of the horizontal blade (18), arms (18a, 18a) projecting to the inner surface side of the horizontal blade (18) are integrally provided, and at the ends of the arms (18a), respectively. Are formed with connecting pins (18b, 18b) extending outward along the longitudinal direction of the horizontal blade (18). The horizontal blade (18) is attached to the air outlet (16) so as to be swingable around the connecting pins (18b, 18b). Specifically, the horizontal blade (18) is configured to be swingable about the connecting pin (18b, 18b) as a rotation center by a motor (not shown). In the above configuration, when the conditioned air is blown out most downward, the horizontal blade (18) is set downward as shown in FIG. 4, while when the so-called horizontal blowing state is set, the horizontal blade (18) is set as shown in FIG. 18) is set upward.
[0044]
A notch (18c) is formed as an opening through which the conditioned air passes at the upstream edge of the airflow at substantially both ends in the longitudinal direction of the horizontal blade (18). The notches (18c) have a length that is approximately a quarter of the length in the longitudinal direction of the horizontal blade (18), and are formed at the airflow upstream edge of the both ends in the longitudinal direction. By providing this notch (18c), the horizontal blade (18) is formed in a shape in which the width of both end portions (18e) is narrower by about two-thirds than the central portion (18d). The specific dimensions of the horizontal blade (18) are, for example, a total length of about 480 mm, a width (width of the central portion (18d)) of about 37 mm, a width of both ends (18e) of about 25 mm, and a notch (18c). The length of can be about 120 mm.
[0045]
The outer guide surfaces (16a, 16b) have a central portion that is curved in substantially the same shape as the cross-sectional shape of the horizontal blade (18) (not limited to a curved shape, but a shape generally along the horizontal blade (18)). Just do it). In other words, the air outlet (16) has the side walls (16a, 16b-c) in the longitudinal center when the horizontal blades (18) are set in a horizontal blowing state, and the inclination corresponding to the horizontal blades (18). It is comprised so that it may become (substantially the same inclination as a horizontal blade | wing (18) as a whole). On the other hand, the inner guide surfaces (16c, 16d) are formed so as to extend vertically downward from the outer guide surfaces (16a, 16b) of the outer member (14a) as a whole. The inner guide surfaces (16c, 16d) may be arbitrarily selected in shape.
[0046]
The two opposing wall surfaces (outer guide surfaces (16a, 16b) and inner guide surfaces (16c, 16d)) of the shape as described above are in the longitudinal direction of the air outlet (16) (the direction perpendicular to the paper surface). ), And the air passage between both wall surfaces (16a, 16b) (16c, 16d) is oriented with the flow of conditioned air flowing toward the air outlet (16). It has a function of the runway to change the.
[0047]
On the other hand, the fan (20) is provided at a substantially central position inside the main casing (11). This fan is a so-called turbo fan in which a blade (23) is held between a shroud (21) and a hub (22). A drive shaft (26) of a fan motor (25) attached to the top plate (12) of the main casing (11) is inserted and fixed to the hub (22) of the fan (20). The fan (20) is rotationally driven by the driving force of 25), so that the air sucked from below the fan (20) is sent out in the radial direction. A bell mouth (27) is provided below the fan (20) for guiding the air flowing into the casing (10) from the air suction port (15) to the fan (20).
[0048]
The heat exchanger (30) is a so-called cross fin heat exchange comprising a number of plate-like fins (31) provided in parallel to each other and a heat transfer tube (32) provided through the fins (31). It is a vessel. This heat exchanger (30) is configured in a rectangular cylinder in plan view so as to surround the fan (20), and is connected to an outdoor unit via a refrigerant pipe (not shown). The heat exchanger (30) functions as an evaporator during cooling operation and as a condenser during heating operation, and adjusts the temperature state of the air sent from the fan (20). A drain pan (33) for receiving drain water is disposed below the heat exchanger (30).
[0049]
With the above configuration, the air filter (17), the bell mouth (27), the fan (20), and the air filter (17) from the air inlet (15) of the decorative panel (14) are placed in the body casing (11) of the air conditioner (1). An air flow passage (W) is formed through the heat exchanger (30) to the air outlet (16). Then, when the fan (20) is driven during the air conditioning operation, the indoor air taken into the casing (10) from the air suction port (15) through the air filter (17) is bell mouth (27), fan (20) And in the order of the heat exchanger (30), the air flows through the air flow path (W), heat is exchanged with the refrigerant in the heat exchanger (30), and the temperature is adjusted (for cooling operation, cooling and heating operation are performed). In this case, after being heated, the air-conditioned air is blown out from the air outlet (16) to the indoor space to perform air conditioning of the indoor space.
[0050]
Here, when there is a request to blow the conditioned air relatively downward, such as during heating operation, the horizontal blades (18) are directed substantially vertically downward as shown in FIG. 16) Along the horizontal blade (18) between the side wall (16a, 16b) on the panel outer peripheral side and the side wall (16c, 16d) on the inner peripheral side of the panel, it blows downward as indicated by arrow S in the figure Let
[0051]
On the other hand, when a so-called horizontal blowing state is set during cooling operation or the like, as shown in FIG. 3, the horizontal blade (18) is rotated upward so that the upper surface (18f) of the horizontal blade (18) It is made to be substantially parallel to the central part (16b-c) of the second outer guide surface (16b) of the air outlet (16). In this way, the conditioned air flows in a curved manner along the central portion (18d) of the horizontal blade (18) at the central portion of the air outlet (16), and the direction of the streamline is large and smoothly changed. Then, as shown by the arrow S1 in the figure, the air outlet passes between the second outer guide surface (16b-c) on the panel outer peripheral side of the air outlet (16) and the horizontal blade (18). (16) is blown out at an angle nearly parallel to the lower surface of the ceiling plate (70) (for example, an angle formed with the lower surface of the ceiling plate (70) is approximately 30 ° to 35 °).
[0052]
Further, at both ends of the air outlet (16), a part of the conditioned air that has flowed downward in the air flow passage (W) flows downward in the direction of arrow S3 from the arrow S1. This is because the angle formed between the guide surface (16b-s) and the ceiling surface (70) at both ends of the air outlet (16) is large, and the horizontal blade (18) approaches the guide surface (16b-s). This is because the distance between them is narrow. In addition, since the distance between the horizontal blade (18) and the guide surface (16b-s) is narrow at both ends of the air outlet (16), the flow rate of air flowing in the direction of the arrow S3 is small. Become. Further, at the both ends of the air outlet (16), the other part of the conditioned air that has flowed downward through the air flow passage (W) is notched (18c) at both ends (18e) of the horizontal blade (18). ) And blown downward as shown by arrow S2 in FIG. From the above, air hardly flows along the ceiling surface (70) at both ends of the air outlet (16).
[0053]
Therefore, conventionally, for example, in a ceiling-embedded air conditioner, air flow tends to adhere to the lower surface of the ceiling plate (70) at a portion where the air blowing speed is low (both ends of the air outlet (16)). When air-conditioning air is blown out relatively upward by the horizontal blades (18) during the cooling operation, for example, about 30 to 35 ° with respect to the lower surface of the ceiling plate (70), the air flow of the ceiling plate (70) Flowing along the lower surface, ceiling dirt occurs in the area (D) as indicated by the phantom line in FIG. 2, and the ceiling dirt is distributed in a substantially V shape for each air outlet. However, according to the air conditioner (1) according to this embodiment, the air blown from both end portions of the air blower outlet (16) is preferably removed from the ceiling plate (70), particularly during the cooling operation in which the horizontal blowout of conditioned air is required. Air flow from the air outlet (16). Blowing direction close to around the ceiling plate (70) underside to example 30 to 35 ° by a horizontal vane (18) at the central portion of the air outlet, it is possible to prevent the occurrence of ceiling fouling.
[0054]
Therefore, according to the air conditioner (1) of this embodiment, the air-conditioning air blowing direction is compared with the conventional one while preventing the dirt on the ceiling, especially during the cooling operation in which the horizontal blowing of the air-conditioned air is required. It is possible to approach the horizontal direction, thereby ensuring air-conditioning efficiency and eliminating the sense of incongruity (draft feeling) of indoor residents.
[0055]
Further, in this embodiment, the notches (18c) of the horizontal blades (18) are formed only in the region of about one quarter of both ends (18d) of the horizontal blades (18), so that the ceiling dirt As a whole, the horizontal blowing can be sufficiently satisfied.
[0056]
Other Embodiments of the Invention
In addition, this invention is not limited to the said embodiment, Other various embodiment is included.
[0057]
For example, in the above embodiment, the guide surfaces (16b-s) are provided only at substantially both ends of the outer guide surfaces (16a, 16b) of the air outlet (16), but the inner guide surfaces (16c, 16d) The sidewalls at both ends may also have the function of a guide surface by changing the inclination. For example, the angle formed between the substantially both ends of the inner guide surface (16c, 16d) of the air outlet (16) and the ceiling surface is larger than the angle formed between the center portion of the inner guide surface (16c, 16d) and the ceiling surface. In this way, substantially both ends of the inner guide surfaces (16c, 16d) may be used as guide surfaces. Even in this case, since the air can be blown downward from both ends of the air outlet (16), it is possible to prevent the ceiling from being soiled.
[0058]
Further, in the above embodiment, the angle of the outer guide surfaces (16a, 16b) of the air outlet (16) is continuously changed between the central portion and both end portions, but is changed stepwise. Other aspects are possible, such as configuring. In that case, the lower end edge of the second outer guide surface (16b) or the second inner guide surface (16d) is not arcuate, but may be trapezoidal or other shapes.
[0059]
Further, for example, not only the blowing angle itself is changed at both ends and the center of the blower outlet (16), but also in the blowing direction outside of the horizontal blade (18) (outside guide surface (16a, 16b) side) as in the above embodiment. ), The airflow direction inside (inner guide surface (16c, 16d) side) is originally set downward, the airflow at the both ends of the air outlet (16) is increased. You may make it do. That is, not only the angle of the inner guide surface (16c, 16d) is different between the both ends in the longitudinal direction and the central portion, but the opening width of the air outlet (16) is closer to the both end portions than the longitudinal central portion. The air volume may be increased by increasing the downward air volume.
[0060]
As described above, the present invention only needs to be configured such that substantially both ends in the longitudinal direction of the air outlet (16) blow out the conditioned air downward from the central portion in the longitudinal direction. As long as it is, means other than the guide surface may be used.
[0061]
In the above embodiment, the present invention is applied to a so-called ceiling-embedded four-way blowing type air conditioner (1) that includes a turbo fan and blows out conditioned air in four directions. The present invention can also be applied to a so-called ceiling-embedded two-way blowing type air conditioner that blows conditioned air in two directions.
[0062]
Furthermore, the present invention can be applied not only to a ceiling-embedded air conditioner but also to a duct type air conditioner. As shown in FIG. 7, in the duct type air conditioner (50), the air outlet unit (51) attached to the ceiling board (70) is installed on the roof of a building through the air duct (52). The air conditioner connected to the air conditioner main body (53). Also in the air outlet unit (51) of the air conditioner (50), by restricting the air blowing direction by providing a guide surface (16b-s) at the substantially longitudinal end of the air air outlet (16), The same effect as the above embodiment can be obtained.
[0063]
In the above embodiment, the notch (18c) is formed as an opening at substantially both ends (18e) of the horizontal blade (18), but the opening (18c) is not necessarily provided. Even when an opening is provided, a through hole or the like may be provided in the horizontal blade (18) instead of the notch (18c), and air is blown downward from both ends of the air outlet (16) when horizontally blowing. It only has to be configured. In other words, the horizontal blade (18) has an air flow (at the back side of the horizontal blade (18) (inside of the air outlet (16) inside) at the opposite ends of the longitudinal center. It is preferable that the airflow upstream edge is formed in such a shape that the downward airflow (see FIG. 3 (S2))) is increased on the surface (16c, 16d) side, that is, inside the blowing direction, You don't have to.
[0064]
In addition, the shape and dimensions of the horizontal blade (18) and the like, and the shape and dimensions of the notch (opening) (18c) are merely examples, and can be appropriately changed according to the shape of the product. .
[0065]
When the opening (18c) is a notch, the notch (18c) can be shaped, for example, as shown in FIG. 8 (a) to FIG. 8 (c) showing the end of the horizontal blade (18). . FIG. 8A shows an example in which the airflow upstream edge of the both ends in the longitudinal direction of the horizontal blade 18 is formed in an arc shape. FIG. 8B shows the airflow upstream edge of the horizontal blade 18 in a straight line. FIG. 8C shows an example in which the airflow upstream edge is formed in an arc shape opposite to that in FIG. 8A.
[0066]
Furthermore, instead of the opening (18c), as shown in FIG. 8 (d), the end of the horizontal blade (18) is connected to the upstream end of the airflow from the longitudinal central portion to the both ends. It is good also as a shape twisted three-dimensionally so that an edge part may rise gradually. In this case, since it is difficult for air to peel off at the end of the horizontal blade (18), there is an advantage that the surrounding warm air is less likely to be caught in the end of the horizontal blade (18), and condensation is less likely to occur.
[0067]
As shown in FIG. 9, for example, in a ceiling-embedded air conditioner, piping and electrical component boxes are arranged at corners in the main body casing (11), while the decorative panel (14) is visually For the reason, it is necessary to make the four blowout opening shapes the same, the opening length in the longitudinal direction of the air passage may be different between the main body casing (11) side and the decorative panel (14) side. In such a case, the air outlet (16) has an enlarged portion that extends in the longitudinal direction of the air outlet (16) at the end portion in the longitudinal direction and the opening length of the air passage in the portion facing the indoor space. (16L) will be formed. Further, the length of the enlarged portion (16L) varies depending on the air outlet.
[0068]
Therefore, the guide surface (16b-s) and the opening (18c) or the opening (18c) such as a notch formed at the upstream edge of the airflow at both ends in the longitudinal direction of the horizontal blade (18). The corresponding portion may be formed in a region substantially corresponding to the enlarged portion (16L) of the air outlet (16). If there is no guide surface (16b-s) or opening (18c) or if it is short, the blown air tends to stay at both ends of the horizontal blade (18) and the air flows horizontally from the enlarged portion (16L). However, if these are formed so as to substantially correspond to the enlarged portion (16L), the amount of air staying in the enlarged portion (16L) can be reduced at both ends in the longitudinal direction of the horizontal blade (18). Dirt can also be prevented. This also applies to the duct type air conditioner (50).
[Brief description of the drawings]
FIG. 1 is a schematic cross-sectional view of a ceiling-embedded air conditioner according to an embodiment of the present invention.
FIG. 2 is a perspective view of an air conditioner installed on a ceiling as viewed from below.
FIG. 3 is an enlarged structural view of an air outlet, showing a state in which the blowing direction of conditioned air is set to a horizontal blowing.
4 is a diagram showing a state in which the blowing direction of conditioned air is set to a downward blowing in FIG.
FIG. 5 is a perspective view of the air outlet when viewed from below.
FIG. 6 is a perspective view of a horizontal blade.
FIG. 7 is a schematic configuration diagram of a duct type air conditioner.
FIGS. 8A to 8D are perspective views showing the shape of the opening of the horizontal blade.
FIG. 9 is a partial perspective view when an enlarged portion is provided at the air outlet.
FIG. 10 is an explanatory diagram showing a state of a blown air flow of conditioned air from an air outlet when a conventional air conditioner is viewed from the side.
[Explanation of symbols]
(1) Air conditioner
(10) Casing
(11) Body casing
(14) Makeup panel
(15) Air inlet
(16) Air outlet
(16a, 16b) Side wall
(16b-c) Longitudinal center of the side wall
(16b-s) Longitudinal ends of the side wall (guide surfaces)
(16L) Enlarged part
(18) Horizontal blade
(18c) Notch (opening)
(20) Fan
(30) Heat exchanger
(50) Air conditioner
(51) Air outlet unit
(52) Air duct
(53) Air conditioner body
(70) Ceiling panel (ceiling surface)

Claims

An air outlet (16) that blows out conditioned air from the ceiling surface (70) toward the indoor space is provided, and the air outlet (16) is provided with a horizontal blade (18) that adjusts the blowing direction of the conditioned air. A decorative panel for an air conditioner,
The air outlet (16) includes guide surfaces (16b-s) for guiding the conditioned air to be blown downward from the longitudinal central portion at substantially both ends in the longitudinal direction .
The guide surface of the air outlet (16) (16b-s) is, the side walls of the air outlet (16) (16a, 16b) (16c, 16d) are formed in the substantially longitudinal end portions of,
The angle formed between the substantially longitudinal ends (16b-s) and the ceiling surface (70 ) of the side walls (16a, 16b) (16c, 16d) of the air outlet (16) is the side wall of the air outlet (16) . (16a, 16b) (16c, 16d) A decorative panel for an air conditioner configured to be larger than an angle formed by a central portion (16b-c ) in the longitudinal direction and a ceiling surface (70) .

Ceiling surface (70) Air outlet that blows air-conditioned air from the interior toward the interior space (16) The air outlet (16) Horizontal blades that adjust the blowing direction of conditioned air (18) Is a decorative panel of an air conditioner provided with
Above air outlet (16) Side wall (16a, 16b) (16c, 16d) Both longitudinal ends of the guide surface (16b-s) Comprising
Above guide surface (16b-s) And ceiling surface (70) The angle formed by the air outlet (16) Side wall (16a, 16b) (16c, 16d) The longitudinal center of (16b-c) And ceiling surface (70) A decorative panel for an air conditioner that is larger than the angle it makes.

The guide surface (16b-s) of the air outlet (16) is formed by side walls (16a, 16b) corresponding to the upper surface of the horizontal blade (18) when the horizontal blade (18) is set to the horizontal blowing state. The decorative panel of the air conditioning apparatus of Claim 1 or 2 comprised .

The guide surface of the air outlet (16), wherein which is constituted by side walls (16c, 16d) corresponding to the side where the lower surface of the horizontal vane (18) when setting the horizontal vane (18) in a horizontal blowoff state Item 3. A decorative panel for an air conditioner according to item 1 or 2 .

The air outlet (16) is a longitudinally central portion (16b) of the side walls (16a, 16b) (16c, 16d) having guide surfaces (16b-s) when the horizontal blade (18) is set in a horizontal blowing state. The decorative panel for an air conditioner according to any one of claims 1 to 4, wherein -c) is configured to have an inclination corresponding to the horizontal blade (18).

The side wall (16a, 16b) (16c, 16d) of the air outlet (16) having the guide surface (16b-s) extends from the longitudinal center (16b-c) to substantially both ends (16b-s). The decorative panel for an air conditioner according to any one of claims 1 to 5, wherein an angle formed with the surface (70) is continuously changed.

The decorative blade for an air conditioner according to any one of claims 1 to 6, wherein the horizontal blades (18) are configured such that conditioned air passes through an airflow upstream edge at substantially both ends in the longitudinal direction.

An air outlet (16) that blows out conditioned air from the ceiling surface (70) toward the indoor space is provided, and the air outlet (16) is provided with a horizontal blade (18) that adjusts the blowing direction of the conditioned air. A blowout unit for an air conditioner,
The said air blower outlet (16) is a blower outlet unit of the air conditioning apparatus comprised so that substantially both ends of a longitudinal direction may blow off conditioned air downward rather than the center part of a longitudinal direction.

The air conditioner according to claim 8, wherein the air outlet (16) is provided with guide surfaces (16b-s) for guiding the conditioned air so as to blow out downward from the longitudinal central portion at substantially both ends in the longitudinal direction. Outlet unit.

Guide surfaces (16b-s) of the air outlet (16) are formed at substantially both ends in the longitudinal direction of the side walls (16a, 16b) of the air outlet (16),
The angle formed between the substantially longitudinal ends (16b-s) of the side wall (16a, 16b) (16c, 16d) of the air outlet (16) and the ceiling surface (70) is the side wall of the air outlet (16). The air conditioner blower according to claim 9 , wherein the air conditioner is configured to be larger than an angle formed by a central portion (16b-c) in the longitudinal direction of (16a, 16b) (16c, 16d) and a ceiling surface (70). Outlet unit.

The guide surface (16b-s) of the air outlet (16) is formed by side walls (16a, 16b) corresponding to the upper surface of the horizontal blade (18) when the horizontal blade (18) is set to the horizontal blowing state. The blower outlet unit of the air conditioning apparatus of Claim 10 comprised.

The guide surface of the air outlet (16), wherein which is constituted by side walls (16c, 16d) corresponding to the side where the lower surface of the horizontal vane (18) when setting the horizontal vane (18) in a horizontal blowoff state Item 11. The air outlet unit of the air conditioner according to Item 10 .

The air outlet (16) is a longitudinally central portion (16b) of the side walls (16a, 16b) (16c, 16d) having guide surfaces (16b-s) when the horizontal blade (18) is set in a horizontal blowing state. The air outlet unit of an air conditioner according to any one of claims 9 to 12, wherein -c) is configured to have an inclination corresponding to the horizontal blade (18).

The side wall (16a, 16b) (16c, 16d) of the air outlet (16) having the guide surface (16b-s) extends from the longitudinal center (16b-c) to substantially both ends (16b-s). The air outlet unit of an air conditioner according to any one of claims 9 to 13, wherein an angle formed with the surface (70) is continuously changed.

The blower outlet unit of the air conditioner according to any one of claims 9 to 14, wherein the horizontal blades (18) are configured such that conditioned air passes through an airflow upstream edge of substantially both ends in the longitudinal direction.

An air conditioner equipped with a decorative panel (14) attached along the ceiling surface,
The air conditioner in which the said decorative panel (14) is comprised with the decorative panel of any one of Claim 1 thru | or 7 .

An air conditioner equipped with a decorative panel (14) attached along the ceiling surface,
The decorative panel (14) is constituted by the decorative panel according to any one of claims 1 to 7 ,
The air outlet (16) has, at substantially both ends thereof, an enlarged portion (16L) in which the opening length in the longitudinal direction expands at a portion facing the indoor space,
An air conditioner in which the guide surface (16b-s) of the air outlet (16) is formed in a region substantially corresponding to the enlarged portion (16L) of the air outlet (16).

The air outlet unit (51) attached to the ceiling surface is an air conditioner connected to the air conditioner body (53) through the air duct (52),
The air conditioning apparatus in which the said blower outlet unit (51) is comprised by the blower outlet unit in any one of Claims 8 thru | or 15 .

The air outlet unit (51) attached to the ceiling surface is an air conditioner connected to the air conditioner body (53) through the air duct (52),
The air outlet unit (51) is constituted by the air outlet unit according to any one of claims 9 to 15 ,
The air outlet (16) has, at substantially both ends thereof, an enlarged portion (16L) in which the opening length in the longitudinal direction expands at a portion facing the indoor space,
An air conditioner in which the guide surface (16b-s) of the air outlet (16) is formed in a region substantially corresponding to the enlarged portion (16L) of the air outlet (16).