JP2004183988A

JP2004183988A - Air-conditioner

Info

Publication number: JP2004183988A
Application number: JP2002351902A
Authority: JP
Inventors: Seiichi Iijima; 清一飯島; Saneaki Nakao; 實明中尾; Hiroshi Yamazaki; 洋山崎
Original assignee: Hitachi Home and Life Solutions Inc
Current assignee: Hitachi Appliances Inc
Priority date: 2002-12-04
Filing date: 2002-12-04
Publication date: 2004-07-02

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a gap from being formed between a lower frame located on the lower side of a decorative cover and a unit casing and eliminate the need for an extra cover member for shielding the head of a screw by fixing the lower frame without using the screw. <P>SOLUTION: In an indoor unit for this air-conditioner having the decorative cover on which a front panel having an air inlet is closably mounted, the screw for fixing the decorative frame body of the decorative cover to the unit casing is positioned on the face of the decorative frame body to be shielded by the front panel closably mounted thereon. The lower frame is fixed in position with a column protruded from the front face of the unit casing and the bottom of a dew tray without using the screw for fixing the lower frame in position under the air inlet provided in the lower side of the decorative frame body. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は空気調和機の化粧カバーに係り、特に空気調和機の室内ユニットへの化粧カバーの固定に関する。
【０００２】
【従来の技術】
空気調和機の室内ユニットは室内の壁面に据え付けて使用されるため、室内に配置してある家具や調度品と違和感なく調和するように考慮されるとともに、空気調和機がもつ機械的なイメージを軽減するように考慮されてきた。そのため室内ユニットの表面を被う主たる部品である化粧カバーの表面意匠に種々の工夫が施され、室内に配置された家具や調度品と違和感なく調和するように、化粧カバーの表面デザインを板状に単純化したり、化粧カバーを取り付けるねじ等が外部表面から見えなくなるように工夫されてきた。
【０００３】
その一例として、特開２０００−１９３２６７号公報（特許文献１）が開示されている。同公報によれば、化粧カバーの下側に設けた空気吹出し口の下部枠の一部にねじ孔を有する凹部を設けて、そのねじ孔を使用して空気吹出し口の下部枠を室内ユニット本体にねじで固定している。しかしそのままではねじの頭部が外部表面に露出して室内の家具や調度品と調和しないので、化粧カバーと別個に成形したねじの頭部を遮蔽するカバー部材を製作して、ねじを締めつけた下部枠の凹部にはめ込み、外部表面からねじの頭部が見えないように遮蔽している。
【０００４】
【特許文献１】
特開２０００−１９３２６７号公報（図１及び図２）
【０００５】
【発明が解決しようとする課題】
上記従来の技術は、カバー部材を別個に製作するには、カバー部材を成形するための成形金型を別個に作らなければならないので、その分製品価格を高くすることになる。また下部枠を締めつけたねじの頭部が外部表面から遮蔽するため、ねじを締めつけた下部枠の凹部にカバー部材を意匠部品として正確に嵌合させなければならないので、成形金型の製作精度を向上させる必要があり、成形金型の製作技術の面でも製品価格を高くすることになる。またねじの頭部を遮蔽する程度の小さな部品であるカバー部材も、外観意匠を構成する意匠部品となるため、大きな部品である化粧カバーの色調と色調を一致させなければならず、成形技術の面でも高度な技術が要求されるので、部品価格が高くなり、製品価格を高くする要因になっている。さらに部品点数が増加することにより部品管理や工程管理が複雑になるとともに、ねじを固定した下部枠の凹部にカバー部材を挿入するという作業が加わり、組立て作業性の面からもの製品価格を高く押しあげる要因を持っていた。
【０００６】
以上説明したように、空気調和機の室内ユニットを室内に配置してある家具や調度品と違和感なく調和させるための工夫の一つとして、化粧カバーのねじ固定部にねじ固定用の凹部を設けて、そのねじ固定用の凹部を使用して化粧カバーをユニット本体とねじで固定し、ねじの頭部が外観表面から見えないように遮蔽するため、化粧カバーとは別個に成形したねじ固定用の凹部に係合するカバー部材用意し、ねじ固定用の凹部に係合させてねじの頭部を遮蔽する方法があった。
【０００７】
しかしこの場合にはカバー部材を別個に成形するため、カバー部材を成形する金型を別個に製作する必要があり、またねじを固定したねじ固定用の凹部に隙間なく挿入させるためカバー部材の精度を高く製作する必要があり、また大きな部品である化粧カバーの色調とねじの頭部を遮蔽する程度の小さな部品であるカバー部材の色調を違和感なく一致させる必要があった。さらに部品点数が増加することにより部品管理が複雑になるとともに、下部枠のねじを固定した凹部にカバー部材を挿入するという作業が加わり、製品の組立て効率の面からも効率を阻害する要因になっていた。
【０００８】
別個に成形金型を製作するために製品価格が高くなるばかりでなく、精度の高い成形金型を作るため、あるいは色調を一致させる高い成形技術を必要とするため、また部品数が増えるため部品管理や工程管理の手数が増加し、製品を組み立てる時の作業効率が阻害されるので、これらの要因によりさらに製品価格を高く押しあげていた。
【０００９】
また、空気調和機は、熱交換器及びファンを搭載したユニット箱体と、このユニット箱体に搭載されたものを覆う化粧枠本体とを備えているが、ユニット箱体に化粧枠本体を取り付ける際、化粧枠本体の下側に設けた空気吹出し口の下の下部枠と、ユニット箱体前面下部との係合がうまくいかず、隙間が発生し、見栄えが悪くなるという問題があった。
【００１０】
本発明の目的は、化粧枠を取り付けているねじを遮蔽するカバー部材を省略することである。
【００１１】
本発明の他の目的は、熱交換器及びファンを搭載したユニット箱体と、このユニット箱体に搭載されたものを覆う化粧枠本体とを備えた空気調和機において、化粧枠本体の下側に設けた空気吹出し口の下の下部枠と、ユニット箱体前面下部との係合部で隙間の発生を低減する空気調和機を提供することにある。
【００１２】
【課題を解決するための手段】
上記目的は、空気吸込み口を設けたフロントパネルを開閉可能に装着した化粧カバーを有する空気調和機の室内ユニットにおいて、化粧カバーの化粧枠本体をユニット箱体に固定するねじの固定位置を、開閉可能に装着したフロントパネルで遮蔽される化粧枠本体の面に設けることによって達成される。
【００１３】
上記他の目的は、熱交換器及びファンを搭載したユニット箱体と、このユニット箱体に搭載されたものを覆う化粧枠本体とを備えた空気調和機において、前記化粧枠本体の下側に設けた空気吹出し口の下の下部枠と、前記ユニット箱体前面下部とを係合する係合部と、露受皿の底面から突出され、前記化粧枠本体の下部枠及び前記ユニット箱体下部とに当接する支柱とを備えることにより達成される。
【００１４】
また、上記両目的は、空気吸込み口を設けたフロントパネルを開閉可能に装着した化粧カバーを有する空気調和機の室内ユニットにおいて、化粧カバーの化粧枠本体をユニット箱体に固定するねじの固定位置を、開閉可能に装着したフロントパネルで遮蔽される化粧枠本体の面に設けるとともに、化粧枠本体の下側に設けた空気吹出し口の下の下部枠を所定の位置に固定するために、ねじを使用しないで、ユニット箱体の前面および露受皿の底面から突出させた支柱で下部枠を所定の位置に固定することによって達成される。
【００１５】
【発明の実施の形態】
以下、本発明の詳細について一実施例を図により説明する。
【００１６】
図１は本発明による空気調和機の室内ユニットの外観図、図２は室内ユニットの一実施例における側断面図、図３は下部枠と支柱とユニット箱体との係合部説明図、図４は下部枠とユニット箱体との係合部説明図、図５は支柱とユニット箱体との係合部説明図、図６は支柱先端部の外観図、図７は露受皿に風向偏向板を組み込んだ説明図である。
【００１７】
図１において、１は室内ユニット、２はユニット組品、３は化粧カバー、４はユニット組品の主体部品であるユニット箱体、５は化粧カバーの主体部品である化粧枠本体、６は開閉可能なフロントパネル、７はフロントパネル６に設けられた室内空気の空気吸込み口、８は化粧枠本体５の下側に設けられた空気吹出し口、９は空気吹出し口８の下部に設けられた下部枠を示している。
【００１８】
図２は室内ユニットの一実施例における側断面図で、室内ユニット１は空気調和機の冷凍部品や送風機、電気品等を組み込んだユニット組品２と、室内ユニット１の正面の外観意匠部品となる化粧カバー３に分けることができる。そしてユニット組品２には一般的に樹脂で成形されたユニット箱体４の中に、室内空気と熱交換する熱交換器１０、室内空気を吸い込み、そして熱交換器１０で熱交換した室内空気を室内ユニット１の外部に送り出す送風機１１、電気品類（明示せず）、送風機１１で送り出す風の流れを案内する送風路１２、および空気吹出し口８に設けた左右風向偏向板１５、上下風向偏向板１６等が組み込まれている。
【００１９】
一方化粧カバー３は、空気吸込み口７を有するフロントパネル６が開閉可能に化粧枠本体５に組み込まれ、化粧枠本体５のフロントパネル６の空気吸込み口７に対応する位置にエアフィルター１７が装着されている。そして化粧枠本体５の下側には化粧枠本体５のほぼ全幅にわたって空気吹出し口８が設けられているので、化粧枠本体５の最下部に相当する空気吹出し口８の下の下部枠９は細長い棒状の構造をしている。フロントパネル６は通常の使用状態では図２の位置（ｂ）に示す位置で使用することになるが、室内空気中の塵埃を取り除いて汚れたエアフィルター１７を取り外すときには、回転支軸１８を支点にして位置（ａ）に開放することによりエアフィルター１７を容易に取り外すことができるようになっている。
【００２０】
室内ユニット１の電源を入れることにより送風機１１が回転し、室内空気がフロントパネル６の空気吸込み口７を通して室内ユニット１内に吸い込まれる。室内ユニット１内に吸い込まれた室内空気はエアフィルター１７で空気中の塵埃が取り除かれ、ついで熱交換器１０で熱交換して空気の温度が調和されるとともに空気中の水分が除湿される。温湿度を調和された空気は送風機１１を貫流して送風路１２に送り出され、空気吹出し口８に設けられた左右風向偏向板１５や上下風向偏向板１６により空気の流れを偏向されて、室内ユニット１の空気吹出し口８から室内に吹き出されてくる。これを繰り返すことにより室内の温湿度条件が調和され、室内を生活に快適な環境に調和してゆくことになる。
【００２１】
このとき、エアフィルター１７は室内ユニット１が吸い込んだ空気中の塵埃を取り除く部品なので、取り除いた塵埃がエアフィルター１７の表面に集積するため定期的に清掃して、元のきれいな状態に戻す必要がある。塵埃の集積したエアフィルター１７を清掃するときに、第１に、化粧カバー３を取り外してエアフィルター１７を取り外すか、第２に、化粧カバー３は取り外さずに化粧カバー３にスリットを設けてそのスリットからエアフィルター１７を引き出すか、第３に、化粧カバー３に開閉可能に組み込んだフロントパネル６を開放してエアフィルター１７を取り外す等の方法がある。
【００２２】
本実施例は最後に説明した開閉可能に組み込んだフロントパネル６を有する化粧カバー３における化粧枠本体５とユニット箱体４の取付けに関するものである。図２に示すように化粧カバー３は化粧枠本体５とフロントパネル６とで構成されていて、化粧枠本体５は上部には、化粧枠本体５をユニット箱体４に係合させるための突起１９およびのフロントパネル６の回転支軸１８を受ける支軸受けが設けられており、中央部にはエアフィルター１７を取り付ける装着部および室内空気の吸い込み部があり、そして下部には室内ユニット１の内部で温湿度を調和された室内空気を吹き出す空気吹出し口８が設けられている。
【００２３】
空気吹出し口８が化粧枠本体５の下部のほぼ全幅にわたって設けられているので、化粧枠本体５の最下部に相当する空気吹出し口８の下側の下部枠９は細長い棒状の構造にならざるをえなくなっている。
【００２４】
フロントパネル６は回転支軸１８を化粧カバー５の支軸受けに係合させて、図２の位置（ａ）と位置（ｂ）間を開閉可能な状態で化粧枠本体５に装着されている。通常、空気調和機を運転しているときはフロントパネル６を位置（ｂ）の状態で使用しているが、空気調和機を長い間運転していて、エアフィルター１７に空気中から取り除いた塵埃が付着してエアフィルター１７の表面に塵埃が多くなった場合には、フロントパネル６を位置（ａ）に開放することによりエアフィルター１７をエアフィルター装着部から容易に取り外すことができ、エアフィルター１７を簡単に清掃することができる。フロントパネル６を開放してエアフィルター１７を取り外すことにより、エアフィルター１７の着脱作業が容易となり、またエアフィルター１７の表面に付着した塵埃をエアフィルター１７から落とすことなく、エアフィルター１７を取り外すことができるようになる。
【００２５】
先に説明したように、塵埃の付着したエアフィルター１７を取り外すために化粧カバー３全体を取り外すことは化粧カバー３が大きく面倒であり、化粧枠本体５にエアフィルター取出し用のスリットを設けて、スリットからエアフィルター１７を取り出すのでは、エアフィルター１７の表面に付着した塵埃をスリットでしごき落とすことになり、落ちた塵埃で化粧カバー３の内部を汚すことになる。
【００２６】
本実施例における化粧カバー３のユニット組品２への組み込み方法は次のようになる。まず化粧枠本体５の上部に設けた突起１９をユニット箱体４の係合孔に係合させて引っかけ、フロントパネル６が位置（ｂ）に閉じた場合に外部表面から見えなくなる位置に化粧枠本体５を固定するねじ孔を設けて、ねじ２０で化粧枠本体５をユニット組品２に固定している。化粧枠本体５を固定したねじ２０の頭部はそのまま化粧枠本体５の表面に露出しているが、フロントパネル６を位置（ｂ）に閉じることにより外部表面から遮蔽されて見えなくなる。これにより従来例で説明したねじの頭部を遮蔽するためのカバー部材がいらなくなり、カバー部材を製作するために化粧枠本体５と別個に成形金型を製作する必要が無くなり、部品点数が減少し、組立て効率も向上することになる。
【００２７】
しかし、化粧カバー５の最下部にある空気吹出し口８の下の下部枠９は、空気吹出し口８が化粧カバー５のほぼ幅全長にわたるため細長い棒状の構造となっており、さらに成形時の反りやうねり等が加わるため、化粧枠本体５をユニット組品２にねじで固定しても、下部枠９とユニット箱体４との間に隙間を作らずに係合させることは困難であった。従来例では先に説明したように、下部枠９のねじ固定部にねじ固定用の凹部を設けてねじを締めつけ後、凹部にねじの頭部を遮蔽するカバー部材を嵌合させている。
【００２８】
本実施例では、下部枠９とユニット箱体４との間の隙間を少なくするために、熱交換器１０で凝縮した凝縮水を受ける露受皿１３の底面から支柱１４を突出させてその先端部に図６で示すように下部枠９を押さえる枠押え１４ａを設けている。また支柱１４を所定の位置に固定するため、保持部１４ｂおよび係合部１４ｃを設けている。
【００２９】
以下、図３、図４、図５、図６を用いて、下部枠９と支柱１４の枠押え１４ａおよび保持部１４ｂ、係合部１４ｃの詳細について説明する。本実施例では露受皿１３の底面から支柱１４を一本だけ突出させているが、必要に応じて複数個設けてもかまわない。
【００３０】
下部枠９は先にも説明したように、細長い棒状の構造をしているため成形型の寸法誤差や成形時の温度条件、冷却条件等の影響を受けやすく、成形された化粧枠本体５の下部枠９には微妙な変形等が発生することになる。この微妙な変形により、化粧枠本体５をフロントパネル６で遮蔽される位置に設けたねじ２０で固定しても、下部枠９とユニット箱体４の係合部の間に僅かな隙間が発生して、化粧カバー３の外観意匠を損なうとともに、送風路１２を流れる冷風を下部枠９の内部に流入させて下部枠９の表面に水滴を凝縮させることになる。
【００３１】
一般にプラスチック樹脂等の成形品は成形時の冷却速度の違いにより、成形品の形状に微妙な変形を発生させるものである。下部枠９においては、図４に示すように成形時の冷却速度の関係で表面側のａ、ｂ面が内部側のｃ、ｄ面より先に冷却されるため、二点鎖線で示すように概略Ｌ字状の角度αが若干広がったα’になる傾向にある。しかしその際、表面ｂ側は化粧枠本体５と一体の形状になっているため、角度の広がりの影響は表面ａ側に多く現われることになる。本実施例ではこの僅かな角度の広がり補正するため、下部枠９の背面に係合リブ９ａ、９ｂを設け、この係合リブ９ａ、９ｂに対応するユニット箱体４側には受け溝４ａ、４ｂを設けた。概略Ｌ字状になっている下部枠９の弾性を利用して、係合リブ９ａ、９ｂを受け溝４ａ、４ｂに圧入する形で挿入している。そのため下部枠９の係合リブ９ａ、９ｂの外側表面とユニット箱体４の受け溝４ａ、４ｂの内部表面が密着するので、送風路１２を流れる冷風が下部枠９の内部に侵入するのを防ぐとともに、下部枠９を確実にユニット箱体４に固定することができるようになる。
【００３２】
ユニット箱体４には、下部枠９に設けた係合リブ９ａ、９ｂと対応する位置に、係合リブ９ａ、９ｂを受けいれる受け溝４ａ、４ｂが設けられているが、係合リブ９ａ、９ｂが下部枠９の全幅にわたって設けられているので、それを受ける受け溝４ａ、４ｂも係合リブ９ａ、９ｂの全長にわたって受けられるようになっている。
【００３３】
またユニット箱体４の中央部には、図５を参照して、露受皿１３の底面から突出して設けられた支柱１４の左右方向の位置を固定するため、保持部１４ｂをはめ込む段差４ｃが設けられている。段差４ｃの内部には支柱１４の上下方向の位置を固定する三角形をした板状の固定リブ４ｄが僅かな間隔をおいて２ヶ所設けられている。さらに固定リブ４ｄの下部には支柱１４の前後方向の位置を固定するため、係合部１４ｃに係合する弾性突起４ｅがユニット箱体４から突出して設けられている。
【００３４】
また露受皿１３からは、露受皿１３の底面から突出して支柱１４が設けられ、その支柱１４の先端には図６に示すように、下部枠９の形状に合わせた枠押え１４ａと、保持部１４ｂおよび係合部１４ｃが設けられている。保持部１４ｂはユニット箱体４に設けた三角形の固定リブ４ｄが内側にはまり込む内部空間を有するともに、その先端部から係合部１４ｃが突出している。そしてこれらの部品は次のようにして組立てられる。
【００３５】
まず熱交換器１０をユニット組品２に組み込んだ後、底面に左右風向偏向板１５や上下風向偏向板１６を組み込んだ露受皿１３を熱交換器１０の下部に装着する。そして露受皿１３の底面から突出させた支柱１４の先端に設けた保持部１４ｂをユニット箱体４の段差４ｃに落としこみ、保持部１４ｂの内側に三角形をした固定リブ４ｄを抱え込むようにして、支柱１４をユニット箱体４側に押しつけてゆく。そしてさらに保持部１４ｂの先の係合部１４ｃを、ユニット箱体４から突出している弾性突起４ｅをのり越してユニット箱体４側に押しつけることにより、支柱１４を確実に固定させることができる。すなわち、支柱１４の上下方向の動きは三角形をした固定リブ４ｄで抑制され、前後方向の動きは弾性突起４ｅで抑制され、左右方向の動きは保持部１４ｂが納まる段差４ｃの幅で抑制されているので、支柱１４の動きは確実に抑制されることになる。
【００３６】
露受皿１３の支柱１４を固定した後に、化粧カバー３を取り付けることになる。化粧枠本体５の上部の突起１９をユニット箱体４に係合させた後、フロントパネル６の背面に設けたねじ孔を利用して化粧枠本体５をねじ２０で固定する。そして化粧枠本体５の概略Ｌ字状をした下部枠９の端部から突出している係合リブ９ａ、９ｂをユニット箱体４の受け溝４ａ、４ｂに嵌合させながら、下部枠９の上面を支柱１４の枠押え１４ａとユニット箱体４で構成される空間に挿入してゆくことになる。
【００３７】
このとき先に説明したように下部枠９の概略Ｌ字状をした角度は、成形時の冷却条件等により当初規定の角度αより若干広いα’になっている。したがって下部枠９のそれぞれの端部から突出した係合リブ９ａ、９ｂは、ユニット箱体４の受け溝４ａ、４ｂの間に角度を補正する形で挿入されることになる。しかし係合リブ９ｂ側は化粧枠本体５の外部表面と同一面を形成しているため、広がった角度の変形は係合リブ９ａ側に多くあらわれることになるので、係合リブ９ｂ側を基準にして係合リブ９ａ側を補正する形で挿入することになる。その係合リブ９ａの反発力をユニット本体４の受け溝４ｂと支柱１４に設けた枠押え１４ａで抑制するため、下部枠９とユニット本体４の間に隙間を作ることなく、係合リブ９ａは受け溝４ｂと枠押え１４ａで構成する空間に固定されることになる。
【００３８】
下部枠９とユニット箱体４との間に隙間ができないので、送風路１２を流れる冷風が隙間を通して下部枠９の内部に進入するがない。そしてさらに下部枠９の後部に突出した係合リブ９ａが、ユニット箱体４の受け溝４ａと押しつけ合う形で当接しているため、仮に下部枠９とユニット箱体４との間に隙間ができても、送風路１２を流れる冷風が下部枠９の内部に侵入することがなく、したがって下部枠９の表面に水滴を凝縮させることがない。
【００３９】
従来例では棒状に細長い下部枠を固定するためにねじを使用していたので、外部表面から固定したねじの頭部が直接見えることになる。そこでねじの頭部を外部表面から遮蔽するために、下部枠のねじ固定部にねじ固定用の凹部を設け、その凹部の中でねじを使用して下部枠を固定し、外部表面から見えるねじの頭部は別個に製作したカバー部材を凹部に嵌合させることによりねじの頭部を遮蔽していた。上述の説明で分かるようにカバー部材は外部表面から直接眼で見える意匠部品なので、カバー部材を下部枠に設けた凹部に挿入させたときに隙間なく勘合し、また色調も違和感なく統一させなければならない。
【００４０】
化粧カバーと別個にねじの頭部を遮蔽するカバー部材を製作するためには、まずカバー部材を製作する成形金型を作る必要があり、またその成形金型も下部枠の凹部と隙間なく嵌合させるために精度の高い金型製作技術が要求され、さらに下部枠の色調とカバー部材の色調を一致させるためにはレベルの高い成形技術が要求されることになる。このことは製品価格を高くする要因になっている。
【００４１】
また組立て工程においても下部枠をねじで固定した後、下部枠の凹部にカバー部材を挿入するという作業が加わり、組立て作業の効率を阻害する要因になっている。また部品点数が増えることにより、部品管理、工程管理の手数が増えやはり製品価格を押し上げることになる。
【００４２】
しかし本実施例では下部枠９を、概略Ｌ字状をした下部枠９のそれぞれの端部から下部枠９の後部に係合用の係合リブ９ａ、９ｂを設け、その下部枠９の係合リブ９ａ、９ｂを受ける受け溝４ａ、４ｂをユニット箱体４に設けて係合させ、露受皿１３の底面から突出させた支柱１４の先端部に設けた枠押え１４ａで下部枠９を押えるように固定するので、ユニット箱体４と化粧枠本体５とをきれいに係合（隙間の防止）することができる。ねじや余分な部品を使用する必要はないが、ねじを使用しても差し支えない。
【００４３】
本実施例では化粧枠本体５を固定するためにフロントパネル６で隠れる部分にねじ２０を２本使用しているが、下部枠９を固定するためにねじを使用していない。また化粧枠本体５を固定しているねじ２０はフロントパネル６で遮蔽されるので、余分なカバー部材を使用していない。したがって余分なねじを締めつける作業や、ねじを締めつけた後ねじの頭部を遮蔽するカバー部材を挿入する作業がないため、作業時間を短縮することができ、組立て効率を向上させることができる。カバー部材を作るために別個に成形金型を作る必要がなく、また精度の高い金型製作技術や成形技術を必要としないので、製品価格を安くすることができる。
【００４４】
以上の説明で分かるように、本実施例の露受皿１３には図７に示すように、左右風向偏向板１５や上下風向偏向板１６が一体に組み込まれており、それらの部品が組み込まれた露受皿１３をねじを使用しないでユニット箱体２に組み込んでいるので、左右風向偏向板１５や上下風向偏向板１６、送風路１２が塵埃等で汚れた場合には、化粧枠本体５を固定している２本のねじ２０を外すだけで露受皿１３と一緒に左右風向偏向板１５や上下風向偏向板１６を取り出すことができ、左右風向偏向板１５や上下風向偏向板１６および送風路１２の汚れを簡単に清掃することができる。
【００４５】
以上説明したように、本実施例によれば次のような効果が期待される。
【００４６】
化粧カバーの化粧枠本体をユニット箱体に固定するねじの個定位置を、開閉可能に装着したフロントパネルで遮蔽される化粧枠本体の面に設けているので、ねじの頭部を遮蔽するカバー部材等を使用しないですみ、また化粧枠本体下側の下部枠を固定するためにはねじを使用しないで、ユニット箱体の前面および露受皿の底面から突出させた支柱で下部枠を所定の位置に固定しているので、カバー部材等の余分な部品を必要とせず、したがってカバー部材を取りつける余分な組立て時間を省略することができる。
【００４７】
化粧枠本体下側の下部枠の断面形状を概略Ｌ字状にし、概略Ｌ字状をした下部枠のそれぞれの端面から下部枠の後部に係合リブを設け、下部枠と当接するユニット本体側に係合リブを受ける受け溝を設け、それぞれの係合リブとそれぞれの受け溝を係合させたことにより、下部枠とユニット本体の係合を確実なものにして、送風路を流通する冷風を下部枠内に流入させることがないので、下部枠の表面に水滴を凝縮させることがない。
【００４８】
下部枠の形状に合わせた枠押えを、露受皿の底面から突出させた支柱の先端部に設けているので、下部枠を所定の位置に確実に固定することができる。
【００４９】
露受皿の底面から突出させた支柱の先端部にユニット箱体に設けた支柱受けを抱え込む支柱固定部を設け、さらにその先端に係合突起を設けてユニット箱体から突出させた弾性突起に係合させているので、露受皿および露受皿の底面から突出させた支柱を所定の位置に確実に固定させ屡ことができる。
【００５０】
露受皿の底面に左右風向偏向板および上下風向偏向板を組み込んだ露受皿ねじを使わずに組み込んでいるので、露受皿や左右風向偏向板、上下風向偏向板、送風路が汚れたときに、道具を使用しないで露受皿や左右風向偏向板、上下風向偏向板を露受皿に取り付けた状態で容易に取り外すことができる。
【００５１】
【発明の効果】
以上本発明によれば、化粧枠を取り付けているねじを遮蔽するカバー部材を省略可能な空気調和機を提供することができる。
【００５２】
また、本発明によれば、熱交換器及びファンを搭載したユニット箱体と、このユニット箱体に搭載されたものを覆う化粧枠本体とを備えた空気調和機において、化粧枠本体の下側に設けた空気吹出し口の下の下部枠と、ユニット箱体前面下部との係合部で隙間の発生を低減することが可能な空気調和機を提供することができる。
【図面の簡単な説明】
【図１】本発明による空気調和機の室内ユニットの外観図。
【図２】室内ユニットの一実施例における側断面図。
【図３】下部枠と支柱とユニット箱体との係合部説明図。
【図４】下部枠とユニット箱体との係合部説明図。
【図５】支柱とユニット箱体との係合部説明図。
【図６】支柱先端部の外観図。
【図７】露受皿に風向偏向板を組み込んだ説明図。
【符号の説明】
１…空気調和機、２…ユニット組品、３…化粧カバー、４…ユニット箱体、５…化粧枠本体、６…フロントパネル、７…空気吸込み口、８…空気吹出し口、９…下部枠、１０…熱交換器、１１…送風機、１２…送風路、１３…露受皿、１４…支柱、１５…左右風向偏向板、１６…上下風向偏向板、１７…エアフィルター、１８…回転支軸、１９…突起、２０…ねじ[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a decorative cover of an air conditioner, and more particularly to fixing a decorative cover to an indoor unit of an air conditioner.
[0002]
[Prior art]
Because the air conditioner indoor unit is installed on the indoor wall, it is considered to be in harmony with the furniture and furniture in the room, and the mechanical image of the air conditioner is taken into account. It has been considered to mitigate. For this reason, the surface design of the decorative cover, which is the main component that covers the surface of the indoor unit, has been devised in various ways, and the surface design of the decorative cover has a plate shape so that it can be harmonized with the furniture and furnishings placed indoors without discomfort. It has been devised so that the screws for attaching the decorative cover are not visible from the external surface.
[0003]
As one example, Japanese Patent Application Laid-Open No. 2000-193267 (Patent Document 1) is disclosed. According to the publication, a recess having a screw hole is provided in a part of a lower frame of an air outlet provided on a lower side of a decorative cover, and the lower frame of the air outlet is used by using the screw hole. Is fixed with screws. However, as it is, the screw head is exposed on the outer surface and does not match with the furniture and furniture in the room, so a cover member that shields the screw head molded separately from the decorative cover was manufactured and tightened. It is fitted in the recess of the lower frame and shields the screw head from being visible from the external surface.
[0004]
[Patent Document 1]
JP-A-2000-193267 (FIGS. 1 and 2)
[0005]
[Problems to be solved by the invention]
In the above-mentioned conventional technique, in order to separately manufacture the cover member, a molding die for molding the cover member must be separately formed, so that the product price increases accordingly. In addition, since the head of the screw that tightened the lower frame shields from the external surface, the cover member must be accurately fitted as a design part to the concave part of the screwed lower frame. It needs to be improved, and the price of the product will also be high in terms of molding die manufacturing technology. In addition, the cover member, which is a small part that shields the head of the screw, is also a design part that constitutes the external design, so the color tone of the large decorative cover must be matched with the color tone. In view of this, advanced technology is also required, which increases parts prices and increases product prices. In addition, the increase in the number of parts increases the complexity of parts management and process management, and adds the task of inserting a cover member into the recess of the lower frame to which the screws are fixed. Had the factors to give.
[0006]
As described above, as one of the ideas for harmonizing the indoor unit of the air conditioner with the furniture and furniture arranged in the room without discomfort, a screw fixing concave portion is provided in the screw fixing portion of the decorative cover. Then, using the screw fixing recess, the decorative cover is fixed to the unit body with the screw and shielded so that the screw head is not visible from the external surface. There has been a method of preparing a cover member that engages with the concave portion, and engaging with the concave portion for fixing the screw to shield the head of the screw.
[0007]
However, in this case, since the cover member is formed separately, it is necessary to separately manufacture a mold for forming the cover member. It is necessary to make the color tone of the decorative cover which is a large part and the color tone of the cover member which is a small part that shields the head of the screw without a sense of incongruity. Furthermore, the increase in the number of parts complicates parts management, and the work of inserting a cover member into the concave part where the screw on the lower frame is fixed has been added, which is a factor that hinders the efficiency of product assembly. I was
[0008]
Not only does the product price rise because separate molding dies are manufactured, but also because high-precision molding dies are required, or high molding technology that matches colors is required, and the number of parts increases, These factors have increased the number of operations and process management operations and impeded the work efficiency when assembling products, and these factors have pushed product prices higher.
[0009]
Further, the air conditioner includes a unit box on which a heat exchanger and a fan are mounted, and a decorative frame main body covering the unit mounted on the unit box. The decorative frame main body is attached to the unit box. In this case, there has been a problem that the lower frame below the air outlet provided on the lower side of the decorative frame main body and the lower portion of the front surface of the unit box do not engage well with each other, so that a gap is generated and the appearance is deteriorated.
[0010]
An object of the present invention is to omit a cover member for shielding a screw for attaching a decorative frame.
[0011]
Another object of the present invention is to provide an air conditioner including a unit box on which a heat exchanger and a fan are mounted, and a decorative frame body covering the unit mounted on the unit box. It is an object of the present invention to provide an air conditioner in which the generation of a gap is reduced at an engagement portion between a lower frame provided below an air outlet and a lower portion of a front surface of a unit box.
[0012]
[Means for Solving the Problems]
In the indoor unit of an air conditioner having a decorative cover in which a front panel provided with an air inlet is openably and closably mounted, a fixing position of a screw for fixing a decorative frame body of the decorative cover to the unit box is opened and closed. This is achieved by providing on the face of the decorative frame body which is shielded by the front panel which is mounted as possible.
[0013]
Another object of the present invention is to provide an air conditioner having a unit box on which a heat exchanger and a fan are mounted and a decorative frame body covering the unit mounted on the unit box, A lower frame below the provided air outlet, an engaging portion for engaging the lower part of the front of the unit box, and a lower frame of the decorative frame main body and a lower part of the unit box protruding from the bottom surface of the dew tray. And a strut that abuts against
[0014]
Further, the above two objects are to fix a fixing position of a screw for fixing a decorative frame main body of a decorative cover to a unit box body in an indoor unit of an air conditioner having a decorative cover in which a front panel provided with an air suction port is openably mounted. Is provided on the face of the decorative frame main body which is shielded by the front panel which can be opened and closed, and a screw for fixing the lower frame below the air outlet provided on the lower side of the decorative frame main body at a predetermined position. This is achieved by fixing the lower frame in a predetermined position with a column protruding from the front surface of the unit box and the bottom surface of the dew tray without using.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
[0016]
FIG. 1 is an external view of an indoor unit of an air conditioner according to the present invention, FIG. 2 is a side sectional view of an indoor unit according to an embodiment, and FIG. 3 is an explanatory view of an engagement portion between a lower frame, a support, and a unit box. 4 is an explanatory view of an engaging portion between the lower frame and the unit box, FIG. 5 is an explanatory view of an engaging portion between the support and the unit box, FIG. 6 is an external view of a support tip, and FIG. It is explanatory drawing which incorporated the board.
[0017]
In FIG. 1, 1 is an indoor unit, 2 is a unit assembly, 3 is a decorative cover, 4 is a unit box which is a main component of the unit assembly, 5 is a decorative frame main body which is a main component of the decorative cover, and 6 is an opening / closing unit. A possible front panel, 7 is an air inlet for room air provided on the front panel 6, 8 is an air outlet provided on the lower side of the decorative frame body 5, and 9 is provided below the air outlet 8. Shows the lower frame.
[0018]
FIG. 2 is a side sectional view of an indoor unit according to an embodiment. The indoor unit 1 includes a unit assembly 2 incorporating a refrigeration component, a blower, and electrical components of an air conditioner, and an exterior design component on the front of the indoor unit 1. Can be divided into decorative covers 3. In the unit assembly 2, a heat exchanger 10 for exchanging heat with room air, a room air sucked, and a room air heat-exchanged by the heat exchanger 10 are inserted into a unit box 4 generally formed of resin. 11 that sends air to the outside of the indoor unit 1, electrical components (not explicitly shown), an air passage 12 that guides the flow of the wind that is sent by the air blower 11, a left and right wind direction deflecting plate 15 provided in the air outlet 8, and a vertical wind direction deflection A plate 16 and the like are incorporated.
[0019]
On the other hand, the decorative cover 3 is incorporated in the decorative frame main body 5 so that the front panel 6 having the air suction port 7 can be opened and closed, and an air filter 17 is mounted on the front panel 6 of the decorative frame main body 5 at a position corresponding to the air suction port 7. Have been. The lower frame 9 below the air outlet 8 corresponding to the lowermost portion of the decorative frame main body 5 is provided below the decorative frame main body 5 because the air outlet 8 is provided over substantially the entire width of the decorative frame main body 5. It has an elongated rod-like structure. The front panel 6 is used at the position shown in FIG. 2B in a normal use state. However, when removing the dust in the room air and removing the dirty air filter 17, the rotation support shaft 18 is used as a fulcrum. The air filter 17 can be easily removed by opening to the position (a).
[0020]
When the power of the indoor unit 1 is turned on, the blower 11 rotates, and indoor air is sucked into the indoor unit 1 through the air inlet 7 of the front panel 6. Dust in the air is removed from the indoor air sucked into the indoor unit 1 by the air filter 17, and then the heat is exchanged by the heat exchanger 10 so that the temperature of the air is adjusted and the moisture in the air is dehumidified. The air conditioned at a constant temperature and humidity flows through the blower 11 and is sent out to the air passage 12, and the air flow is deflected by the left and right wind direction deflecting plates 15 and the up and down wind direction deflecting plates 16 provided at the air outlet 8, and the indoor air is deflected. Air is blown into the room from the air outlet 8 of the unit 1. By repeating this, the temperature and humidity conditions in the room are harmonized, and the room is harmonized with a comfortable environment for living.
[0021]
At this time, since the air filter 17 is a part for removing dust in the air sucked by the indoor unit 1, it is necessary to periodically clean the removed dust to accumulate on the surface of the air filter 17 and return to an original clean state. is there. When cleaning the air filter 17 on which dust is accumulated, first, the makeup cover 3 is removed and the air filter 17 is removed, or, second, the makeup cover 3 is provided without being removed and a slit is provided in the makeup cover 3. Thirdly, there is a method of pulling out the air filter 17 from the slit, or, thirdly, opening the front panel 6 that can be opened and closed in the decorative cover 3 to remove the air filter 17.
[0022]
This embodiment relates to the attachment of the decorative frame main body 5 and the unit box 4 in the decorative cover 3 having the front panel 6 which can be opened and closed as described last. As shown in FIG. 2, the decorative cover 3 is composed of a decorative frame main body 5 and a front panel 6, and the decorative frame main body 5 has a projection on the upper portion for engaging the decorative frame main body 5 with the unit box 4. A support for receiving the rotary support 18 of the front panel 6 is provided at the center, and a mounting portion for mounting the air filter 17 and a room air suction portion are provided at the center, and the interior of the indoor unit 1 is provided at the lower portion. An air outlet 8 is provided for blowing indoor air whose temperature and humidity are adjusted.
[0023]
Since the air outlet 8 is provided over substantially the entire width of the lower part of the decorative frame main body 5, the lower frame 9 below the air outlet 8 corresponding to the lowermost part of the decorative frame main body 5 does not have an elongated rod-like structure. I'm getting lost.
[0024]
The front panel 6 is mounted on the decorative frame main body 5 such that the rotary support shaft 18 is engaged with the support bearing of the decorative cover 5 and can be opened and closed between the position (a) and the position (b) in FIG. Normally, when operating the air conditioner, the front panel 6 is used in the state of position (b). However, when the air conditioner has been operating for a long time, the dust removed from the air is supplied to the air filter 17. If dust adheres to the surface of the air filter 17 and the front panel 6 is opened to the position (a), the air filter 17 can be easily removed from the air filter mounting portion. 17 can be easily cleaned. By opening the front panel 6 and removing the air filter 17, the work of attaching and detaching the air filter 17 becomes easy, and it is possible to remove the air filter 17 without dropping dust adhered to the surface of the air filter 17 from the air filter 17. Will be able to
[0025]
As described above, removing the entire decorative cover 3 in order to remove the air filter 17 to which dust adheres is a large and troublesome decorative cover 3, and the decorative frame main body 5 is provided with a slit for taking out the air filter. If the air filter 17 is taken out from the slit, dust adhering to the surface of the air filter 17 will be scraped off by the slit, and the interior of the decorative cover 3 will be stained with the dropped dust.
[0026]
The method of incorporating the decorative cover 3 into the unit assembly 2 in the present embodiment is as follows. First, the projection 19 provided on the upper part of the decorative frame main body 5 is engaged with the engaging hole of the unit box 4 and hooked, and when the front panel 6 is closed at the position (b), the decorative frame is moved to a position where it cannot be seen from the external surface. A screw hole for fixing the main body 5 is provided, and the decorative frame main body 5 is fixed to the unit assembly 2 with the screw 20. Although the head of the screw 20 to which the decorative frame main body 5 is fixed is exposed as it is on the surface of the decorative frame main body 5, when the front panel 6 is closed at the position (b), it is shielded from the external surface and becomes invisible. This eliminates the need for the cover member for shielding the head of the screw described in the conventional example, and eliminates the need to manufacture a molding die separately from the decorative frame main body 5 to manufacture the cover member, thereby reducing the number of parts. In addition, the assembly efficiency is improved.
[0027]
However, the lower frame 9 below the air outlet 8 at the lowermost part of the decorative cover 5 has an elongated rod-like structure because the air outlet 8 covers almost the entire width of the decorative cover 5, and further has a warpage during molding. Since undulations and the like are added, even if the decorative frame main body 5 is fixed to the unit assembly 2 with screws, it is difficult to engage without making a gap between the lower frame 9 and the unit box 4. . In the conventional example, as described above, the screw fixing portion of the lower frame 9 is provided with a screw fixing concave portion, and after tightening the screw, the cover member for shielding the screw head is fitted into the concave portion.
[0028]
In this embodiment, in order to reduce the gap between the lower frame 9 and the unit box 4, the column 14 is projected from the bottom surface of the dew receiving tray 13 that receives the condensed water condensed in the heat exchanger 10, and the tip 14 As shown in FIG. 6, a frame holder 14a for holding the lower frame 9 is provided. Further, in order to fix the column 14 at a predetermined position, a holding portion 14b and an engaging portion 14c are provided.
[0029]
The details of the lower frame 9, the frame holder 14a of the support 14, the holding portion 14b, and the engaging portion 14c will be described below with reference to FIGS. 3, 4, 5, and 6. FIG. In this embodiment, only one support rod 14 protrudes from the bottom surface of the dew receiving tray 13, but a plurality of support rods may be provided as necessary.
[0030]
As described above, since the lower frame 9 has an elongated rod-like structure, it is easily affected by dimensional errors of the molding die, temperature conditions during molding, cooling conditions, and the like. Subtle deformation or the like occurs in the lower frame 9. Due to this delicate deformation, a slight gap is generated between the lower frame 9 and the engaging portion of the unit box 4 even if the decorative frame main body 5 is fixed with the screw 20 provided at a position shielded by the front panel 6. As a result, the appearance design of the decorative cover 3 is impaired, and the cool air flowing through the air passage 12 flows into the lower frame 9 to condense water droplets on the surface of the lower frame 9.
[0031]
Generally, a molded article such as a plastic resin causes a slight deformation in the shape of the molded article due to a difference in cooling rate during molding. In the lower frame 9, as shown in FIG. 4, the surfaces a and b are cooled before the inner surfaces c and d in relation to the cooling rate during molding. The approximate L-shaped angle α tends to be slightly expanded α ′. However, at this time, since the surface b has an integral shape with the decorative frame main body 5, the influence of the spread of the angle appears more on the surface a. In this embodiment, in order to correct the spread of this slight angle, engaging ribs 9a and 9b are provided on the back surface of the lower frame 9, and the receiving grooves 4a and 9b are formed on the unit box 4 side corresponding to the engaging ribs 9a and 9b. 4b was provided. The engagement ribs 9a, 9b are inserted into the receiving grooves 4a, 4b by press fitting using the elasticity of the lower frame 9 which is substantially L-shaped. As a result, the outer surfaces of the engagement ribs 9a and 9b of the lower frame 9 and the inner surfaces of the receiving grooves 4a and 4b of the unit box 4 are in close contact with each other, so that the cool air flowing through the air passage 12 enters the inside of the lower frame 9. In addition to this, the lower frame 9 can be securely fixed to the unit box 4.
[0032]
The unit box 4 is provided with receiving grooves 4a and 4b for receiving the engaging ribs 9a and 9b at positions corresponding to the engaging ribs 9a and 9b provided on the lower frame 9, respectively. Since the lower frame 9b is provided over the entire width of the lower frame 9, the receiving grooves 4a and 4b that receive the lower frame 9 can also be received over the entire length of the engaging ribs 9a and 9b.
[0033]
Referring to FIG. 5, a step 4c into which a holding portion 14b is fitted is provided at the center of the unit box 4 in order to fix the position in the left-right direction of a column 14 protruding from the bottom surface of the dew tray 13 with reference to FIG. Have been. Inside the step 4c, two triangular plate-shaped fixing ribs 4d for fixing the positions of the columns 14 in the vertical direction are provided at two places with a slight interval. Further, at the lower portion of the fixing rib 4d, an elastic projection 4e that engages with the engaging portion 14c is provided to protrude from the unit box body 4 in order to fix the position of the column 14 in the front-rear direction.
[0034]
Further, from the dew tray 13, a column 14 is provided protruding from the bottom surface of the dew tray 13, and at the tip of the column 14, as shown in FIG. 14b and an engaging portion 14c are provided. The holding portion 14b has an internal space in which the triangular fixing rib 4d provided in the unit box 4 fits inside, and the engaging portion 14c protrudes from a tip portion thereof. These parts are assembled as follows.
[0035]
First, after assembling the heat exchanger 10 into the unit assembly 2, the dew tray 13 with the left and right wind direction deflecting plates 15 and the up and down wind direction deflecting plates 16 installed on the bottom surface is attached to the lower part of the heat exchanger 10. Then, the holding portion 14b provided at the tip of the column 14 protruding from the bottom surface of the dew tray 13 is dropped into the step 4c of the unit box 4, so that the triangular fixing rib 4d is held inside the holding portion 14b, The support 14 is pressed against the unit box 4 side. Further, by pushing the engaging portion 14c at the tip of the holding portion 14b over the elastic projection 4e projecting from the unit box 4 toward the unit box 4 side, the column 14 can be securely fixed. That is, the vertical movement of the column 14 is suppressed by the triangular fixing rib 4d, the front-back movement is suppressed by the elastic protrusion 4e, and the left-right movement is suppressed by the width of the step 4c in which the holding portion 14b is accommodated. Therefore, the movement of the column 14 is reliably suppressed.
[0036]
After fixing the support 14 of the dew tray 13, the decorative cover 3 is attached. After the upper projection 19 of the decorative frame main body 5 is engaged with the unit box 4, the decorative frame main body 5 is fixed with screws 20 using a screw hole provided on the back surface of the front panel 6. The upper surface of the lower frame 9 is fitted while engaging the engagement ribs 9a and 9b projecting from the end of the substantially L-shaped lower frame 9 of the decorative frame body 5 into the receiving grooves 4a and 4b of the unit box 4. Is inserted into the space defined by the frame retainer 14 a of the support 14 and the unit box 4.
[0037]
At this time, as described above, the substantially L-shaped angle of the lower frame 9 is slightly larger than the initially defined angle α due to cooling conditions during molding and the like. Therefore, the engagement ribs 9a and 9b protruding from the respective ends of the lower frame 9 are inserted between the receiving grooves 4a and 4b of the unit box 4 in a manner to correct the angle. However, since the engaging rib 9b side forms the same plane as the outer surface of the decorative frame main body 5, a wide angle deformation appears on the engaging rib 9a side. Then, the engagement rib 9a is inserted in such a manner as to correct the side. Since the repulsive force of the engaging rib 9a is suppressed by the receiving groove 4b of the unit main body 4 and the frame retainer 14a provided on the column 14, the engaging rib 9a can be formed without forming a gap between the lower frame 9 and the unit main body 4. Is fixed in the space defined by the receiving groove 4b and the frame retainer 14a.
[0038]
Since there is no gap between the lower frame 9 and the unit box 4, there is no cold air flowing through the air passage 12 entering the lower frame 9 through the gap. Further, since the engagement rib 9a protruding from the rear portion of the lower frame 9 is in contact with the receiving groove 4a of the unit box 4 in a pressed state, a gap is temporarily formed between the lower frame 9 and the unit box 4. Even if it is possible, the cool air flowing through the air passage 12 does not enter the inside of the lower frame 9, and therefore, water droplets do not condense on the surface of the lower frame 9.
[0039]
In the conventional example, since the screw is used to fix the elongated lower frame in a bar shape, the head of the fixed screw can be directly seen from the external surface. Therefore, in order to shield the head of the screw from the external surface, a screw fixing recess is provided in the screw fixing part of the lower frame, and the screw is used to fix the lower frame, and the screw visible from the external surface The head of the screw was shielded by fitting a separately manufactured cover member into the recess. As can be seen from the above description, the cover member is a design part that can be seen directly from the external surface, so when the cover member is inserted into the recess provided in the lower frame, it must fit without gaps, and the color tone must be unified without discomfort No.
[0040]
In order to manufacture a cover member that shields the head of the screw separately from the decorative cover, it is necessary to first make a molding die for producing the cover member, and the molding die also fits into the recess of the lower frame without any gap. A high-precision mold manufacturing technique is required for matching, and a high-level molding technique is required for matching the color tone of the lower frame with the color tone of the cover member. This is a factor that increases product prices.
[0041]
In the assembling process, an operation of fixing the lower frame with screws and then inserting a cover member into the concave portion of the lower frame is added, which is a factor that hinders the efficiency of the assembling operation. In addition, as the number of parts increases, the number of parts management and process management increases, which also increases the product price.
[0042]
However, in this embodiment, the lower frame 9 is provided with engaging ribs 9a and 9b for engagement from the respective ends of the lower frame 9 having a substantially L-shape to the rear of the lower frame 9. Receiving grooves 4a, 4b for receiving the ribs 9a, 9b are provided in the unit box 4 to be engaged, and the lower frame 9 is pressed by a frame retainer 14a provided at the tip of a column 14 protruding from the bottom surface of the exposure tray 13. , The unit box 4 and the decorative frame main body 5 can be engaged neatly (prevention of a gap). It is not necessary to use screws or extra parts, but screws can be used.
[0043]
In this embodiment, two screws 20 are used in a portion hidden by the front panel 6 to fix the decorative frame main body 5, but no screw is used to fix the lower frame 9. Further, since the screw 20 fixing the decorative frame main body 5 is shielded by the front panel 6, no extra cover member is used. Therefore, since there is no work to tighten an extra screw or a work to insert a cover member for shielding the head of the screw after tightening the screw, the operation time can be shortened, and the assembling efficiency can be improved. Since it is not necessary to separately form a molding die to form the cover member, and it is not necessary to use a high-precision molding and molding technique, the product price can be reduced.
[0044]
As can be understood from the above description, as shown in FIG. 7, the left and right wind deflecting plates 15 and the vertical wind deflecting plates 16 are integrally incorporated in the dew tray 13 of this embodiment, and these components are incorporated. Since the exposure tray 13 is incorporated into the unit box 2 without using screws, the decorative frame main body 5 is fixed when the left and right wind direction deflecting plates 15, the vertical direction deflecting plates 16, and the air passage 12 are contaminated with dust or the like. The left and right wind direction deflecting plate 15 and the vertical wind direction deflecting plate 16 can be taken out together with the dew tray 13 only by removing the two screws 20 that have been used. Dirt can be easily cleaned.
[0045]
As described above, according to the present embodiment, the following effects are expected.
[0046]
Screws for fixing the decorative frame body of the decorative cover to the unit box are provided on the face of the decorative frame body that is shielded by the front panel that can be opened and closed, so the cover that shields the head of the screw Do not use any components, etc., and do not use screws to fix the lower frame on the lower side of the decorative frame main body. Since it is fixed in position, no extra parts such as a cover member are required, and therefore, extra assembly time for mounting the cover member can be omitted.
[0047]
The lower frame on the lower side of the decorative frame main body has a substantially L-shaped cross-section, and an engagement rib is provided at a rear portion of the lower frame from each end surface of the substantially L-shaped lower frame, and the unit main body is in contact with the lower frame. A receiving groove for receiving the engaging rib is provided on the lower surface, and the engaging rib is engaged with the respective receiving groove, so that the lower frame and the unit body are securely engaged with each other, and the cool air flowing through the air passage is provided. Does not flow into the lower frame, so that water droplets do not condense on the surface of the lower frame.
[0048]
Since the frame retainer conforming to the shape of the lower frame is provided at the tip of the column protruding from the bottom surface of the dew tray, the lower frame can be securely fixed at a predetermined position.
[0049]
A column fixing portion for holding the column receiver provided on the unit box is provided at the tip of the column protruding from the bottom surface of the dew tray, and an engaging projection is further provided at the tip to control the elastic projection protruding from the unit box. Since they are aligned, the dew tray and the column protruding from the bottom surface of the dew tray can be reliably fixed at a predetermined position, and can often be used.
[0050]
It is installed without using the dew pan screw that incorporates the left and right wind deflector and the vertical wind deflector on the bottom surface of the dew pan, so when the dew pan, the left and right wind deflector, the upper and lower wind deflector, and the air passage are dirty, Without using any tools, the dew tray, the left and right wind direction deflecting plates, and the up and down wind direction deflector plates can be easily removed with the dew tray attached.
[0051]
【The invention's effect】
As described above, according to the present invention, it is possible to provide an air conditioner that can omit a cover member for shielding a screw to which a decorative frame is attached.
[0052]
Further, according to the present invention, in an air conditioner including a unit box on which a heat exchanger and a fan are mounted, and a decorative frame main body covering a unit mounted on the unit box, a lower side of the decorative frame main body is provided. It is possible to provide an air conditioner that can reduce the generation of a gap at an engagement portion between a lower frame below an air outlet provided at a lower portion and a lower front portion of a unit box.
[Brief description of the drawings]
FIG. 1 is an external view of an indoor unit of an air conditioner according to the present invention.
FIG. 2 is a side sectional view of an embodiment of the indoor unit.
FIG. 3 is an explanatory view of an engaging portion of a lower frame, a support, and a unit box.
FIG. 4 is an explanatory view of an engagement portion between a lower frame and a unit box.
FIG. 5 is an explanatory view of an engaging portion between the column and the unit box.
FIG. 6 is an external view of a tip portion of a support.
FIG. 7 is an explanatory view in which a wind direction deflecting plate is incorporated in a dew tray.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Air conditioner, 2 ... Unit assembly, 3 ... Makeup cover, 4 ... Unit box, 5 ... Makeup frame main body, 6 ... Front panel, 7 ... Air inlet, 8 ... Air outlet, 9 ... Lower frame , 10 ... heat exchanger, 11 ... blower, 12 ... blower path, 13 ... dew tray, 14 ... prop, 15 ... left and right wind direction deflecting plate, 16 ... vertical wind direction deflecting plate, 17 ... air filter, 18 ... rotating shaft, 19: projection, 20: screw

Claims

In an indoor unit of an air conditioner having a decorative cover with a front panel provided with an air intake port openably and closably mounted, a fixing position of a screw for fixing the decorative frame body of the decorative cover to the unit box is openably and closably mounted. An air conditioner installed on the face of the decorative frame body that is shielded by the front panel.

In an air conditioner provided with a unit box on which a heat exchanger and a fan are mounted, and a decorative frame main body covering the unit mounted on the unit box, an air outlet provided on a lower side of the decorative frame main body is provided. A lower frame, an engaging portion that engages the lower part of the front surface of the unit box, and a column that protrudes from the bottom surface of the dew tray and abuts on the lower frame of the decorative frame body and the lower part of the unit box. Equipped air conditioner.

In an indoor unit of an air conditioner having a decorative cover with a front panel provided with an air intake port openably and closably mounted, a fixing position of a screw for fixing the decorative frame body of the decorative cover to the unit box is openably and closably mounted. In order to fix the lower frame below the air outlet provided at the lower side of the decorative frame main body in a predetermined position while being provided on the surface of the decorative frame main body shielded by the front panel, a unit box is used without using screws. An air conditioner in which a lower frame is fixed at a predetermined position by a column protruding from the front of the body and the bottom of a dew tray.

4. The lower frame below the air outlet provided on the lower side of the decorative frame main body according to claim 3, wherein the lower frame has a substantially L-shaped cross section, and each end face of the substantially L-shaped lower frame. An air conditioner in which an engagement rib is provided at a rear portion of a lower frame, a receiving groove for receiving the engagement rib is provided on a unit body side that contacts the lower frame, and each engagement rib is engaged with each reception groove.

According to claim 3, in a column protruding from the bottom surface of the dew tray to hold the lower frame of the decorative frame main body at a predetermined position, a frame retainer adapted to the shape of the lower frame is provided at the tip of the column, and the screw is fixed. An air conditioner that fixes the lower frame in place without using it.

4. The supporting column according to claim 3, wherein a supporting column protruding from a bottom surface of the exposure tray for holding the lower frame of the decorative frame main body at a predetermined position is provided with a supporting column fixing portion for holding a supporting column provided on the unit box at the tip of the supporting column. An air conditioner in which an engaging projection is further provided at the tip thereof to engage with an elastic projection projecting from the unit box body, and a post projecting from the bottom surface of the exposure tray is fixed at a predetermined position without using screws. Machine.

4. The dew tray according to claim 3, further comprising a support provided with a frame retainer for holding a lower frame in a predetermined position, wherein the deflector has a left and right wind direction deflecting plate and a vertical direction deflecting plate incorporated into a bottom surface of the dew tray. An air conditioner that removes the dew tray incorporating the left and right wind direction deflecting plates and the vertical direction deflecting plates without using other tools by removing the screws that fix the frame body.