JP4584500B2

JP4584500B2 - Recessed ceiling air conditioner

Info

Publication number: JP4584500B2
Application number: JP2001197739A
Authority: JP
Inventors: 善之中川; 洋邦鈴木; 洋一高塚
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2001-06-29
Filing date: 2001-06-29
Publication date: 2010-11-24
Anticipated expiration: 2021-06-29
Also published as: JP2003014248A

Description

【０００１】
【発明の属する技術分野】
この発明は、天井埋込形空気調和機に生じる水滴の回収構造を改良した天井埋込形空気調和機に関する。
【０００２】
【従来の技術】
図７は従来の天井埋込形空気調和機の室内ユニット（以下、天井埋込形空気調和機と称す）の断面図である。図において、１は送風ファン、２は熱交換器であり熱交換器２ａ、２ｂから構成される。１３は熱交換器２に生じる水滴を回収する熱交換器用ドレンパン、４はスタビライザー、１５はケーシングであり、外殻１５ａ、断熱効果のある材料（例えば発泡スチロール）１５ｂから構成される。６は風向を変える上下ベーン、７は吸い込み口であり、熱交換器２ａ側の吸い込み口７ａと熱交換器２ｂ側の吸い込み口７ｂから構成される。８はケーシング１５により形成た風路、９は吹出口、１０はケーシング等を内装する箱体である。
【０００３】
この構成において、冷房時には送風ファン１によって吸込口７より吸い込まれた室内空気は、熱交換器２により冷やされ風路８を通り吹出口９より排出される。
このとき、熱交換器２に生じる水滴は熱交換器用ドレンパン１３に回収される。また、風路を形成しているケーシング１５は冷やされるため、断熱効果のある断熱材（例えば発泡スチロール）１５ｂを使用してケーシング１５の裏面（図斜線部上側）に水滴が生じないようにしていた。
【０００４】
【発明が解決しようとする課題】
しかしながら、上記のような従来の天井埋込形空気調和機では、ケーシング１５が断熱不足になるとケーシング１５の裏面、さらには、箱体１０にも水滴が生じ、この水滴により天井埋込形空気調和機の信頼性が低下し、また、水滴をドレンパンに回収する途中の水受部等に水滴がたまると、水滴が冷やされているため、この水受部の外面に結露による水滴が生じてこの除去が難しくなり、また、ケーシング１５の構成が断熱材１５ｂを必要とし構成が簡単でなく、さらに、装置を取り付けた天井等に水滴による影響が生じるという問題があった。
【０００５】
この発明は上述のような課題を解決するためになされたもので、断熱材を使用せず、簡単な構成により、冷房時に、ケーシング及び箱体に生じた水滴を容易に回収することができ、信頼性を高め、部品点数を減らし、低騒音化が図れ、また、天井等に影響が生じないようにした天井埋込形空気調和機を提供することを目的とする。
【０００６】
【課題を解決するための手段】
この発明に係る天井埋込形空気調和機は、熱交換器と吹出口を覆うように設けられ、背面板と両側面板を有するケーシングと、このケーシングの前記背面板の下端縁部を断面略コの字状に形成した背面側樋部と、前記両側面板の下端縁部を断面略コの字状に形成し、前記背面側樋部と連接した側面側樋部と、前記背面板に設けられ、前記背面板から前記背面側樋部に滴下する水滴を前記側面側樋部に分流させる複数の分流リブと、前記側面樋部の最下端部に設けられ、前記水滴を滴下させる滴下穴と、前記側面側樋部の下側に開口部を有し、この開口部の両側壁が前記側面側樋部の両側壁に両側壁が沿うように設けられたドレンパンと、を備え、前記側面側樋部及び前記背面側樋部を、前記滴下穴に向かって下向きに傾斜させたものである。
【０００７】
また、熱交換器と吹出口を覆うように設けられ、背面板と両側面板を有するケーシングと、このケーシングの前記背面板の下端縁部を断面略コの字状に形成した背面側樋部と、前記両側面板の下端縁部を断面略コの字状に形成し、前記背面側樋部と連接した側面側樋部と、前記背面板に設けられ、前記背面板から前記背面側樋部に滴下する水滴を前記側面側樋部に分流させる複数の分流リブと、前記背面側樋部及び側面樋部に設けられ、水滴を滴下させる複数の滴下穴と、前記側面側樋部及び前記背面側樋部の下側に開口部を有し、この開口部の両側壁が前記側面側樋部及び前記背面側樋部の両側壁に両側壁が沿うように設けられたドレンパンと、を備え、前記側面側樋部及び前記背面側樋部を、前記滴下穴に向かって下向きに傾斜させたものである。
【０００８】
また、熱交換器と吹出口を覆うように設けられ、背面板と両側面板を有するケーシングと、このケーシングを内装する箱体と、前記ケーシングの前記背面板の下端縁部を断面略コの字状に形成した背面側樋部と、前記両側面板の下端縁部を断面略コの字状に形成し、前記背面側樋部と連接した側面側樋部と、前記背面板に設けられ、前記背面板から前記背面側樋部に滴下する水滴を前記側面側樋部に分流させる複数の分流リブと、前記側面樋部の最下端部に設けられ、前記水滴を滴下させる滴下穴と、前記箱体の下端開口周縁部の下側に開口部を有し、この開口部の外側壁が前記箱体の前記下端開口周縁部より大きくし、内側壁が前記側面側樋部及び前記背面側樋部の内側壁に沿うように設けられたドレンパンと、を備える。
【０００９】
また、熱交換器と吹出口を覆うように設けられ、背面板と両側面板を有するケーシングと、このケーシングを内装する箱体と、前記ケーシングの前記背面板の下端縁部を断面略コの字状に形成した背面側樋部と、前記両側面板の下端縁部を断面略コの字状に形成し、前記背面側樋部と連接した側面側樋部と、前記背面板に設けられ、前記背面板から前記背面側樋部に滴下する水滴を前記側面側樋部に分流させる複数の分流リブと、前記背面側樋部及び側面樋部に設けられ、水滴を滴下させる複数の滴下穴と、前記箱体の下端開口周縁部の下側に開口部を有し、この開口部の外側壁が前記箱体の前記下端開口周縁部より大きくし、前記開口部の内側壁が前記側面側樋部及び前記背面側樋部の内側壁に沿うように設けられたドレンパンと、を備え、前記側面側樋部及び前記背面側樋部を、前記滴下穴に向かって下向きに傾斜させたものである。
【００１１】
また、前記ドレンパンを、熱交換器の下部に設けられた熱交換器用ドレンパンと一体にしたものである。
【００１２】
また、空気を吸込口より吸い込み、吹出口から排出させる送風ファンを備え、前記ケーシングの両側面板を、前記送風ファンを駆動するモーターを固定するモータ固定部と前記ドレンパンに貯留されたドレン水を排出するドレンポンプを固定するドレンポンプ固定部と各々一体にしたものである。
【００１３】
【発明の実施の形態】
実施の形態１．
図１は実施の形態１を示す天井埋込形空気調和機の断面図、図２は天井埋込形空気調和機の本体のケーシングとドレンパンの位置関係の斜視図、図３は天井埋込形空気調和機の分解斜視図である。図において、１は送風ファン、２は熱交換器であり熱交換器２ａ、２ｂから構成される。４はスタビライザー、５は熱交換器２と吹出口９を覆うように設けられ、風路を形成するケーシングであり、このケーシング５の背面板５ｃと両側面板５ｄ、５ｄ背面板５ｃに設けられ、背面板５ｃに生じた水滴が背面板５ｃの傾斜面を下方に流れる水滴を左右に分流するへの字状の分流リブ１１を備え、さらに、背面板５ｃの下端縁部を断面略コの字状に形成した背面側樋部５ａ、両側面板５ｄ、５ｄの下端縁部を断面略コの字状に形成し、最下端部５ｅ、５ｅ傾斜部５ｆ、５ｆ上部５ｇ、５ｇからなり、最下端部５ｅ、５ｅが背面側樋部と連接した側面側樋部５ｂ、５ｂ、側面側樋部５ｂ、５ｂの最下端部５ｅ、５ｅに設けられ、水滴を滴下させる滴下穴１２を備えている。
【００１４】
６は風向を変える上下ベーン、７は吸い込み口であり、熱交換器２ａ側の吸い込み口７ａと熱交換器２ｂ側の吸い込み口７ｂから構成される。８はケーシング５により形成した風路、９は吹出口である。
なお、背面板側樋部５ａは側面側樋５ｂ、５ｂの最下端部５ｅ、５ｅに設けられた穴１２に水滴が流れるように傾斜をつけ、また、側面側樋５ｂ、５ｂの上部５ｇ、５ｇも最下端部５ｅ、５ｅ側に傾斜させている。
【００１５】
３はドレンパンであり、熱交換器２の下部の下側に開口部が熱交換器２の下部に対向するように設けられ、熱交換器２に生じる水滴を回収する熱交換器用ドレンパン部３ａ、側面側樋部５ｂ、５ｂの下側に開口部を有し、側面側樋部５ｂ、５ｂの両側壁に両側壁が沿うように設けられた樋用ドレンパン部３ｃ、３ｃから構成され、平面視がＩ字状に一体に形成されている。
２０は送風ファン１の駆動用モーター及びドレンポンプが外側に取りつけられ、熱交換器２、送風ファン１が内装されたケーシング５、スタビライザー４、上下ベーン６、ドレンパン３から構成される本体、１０は本体２０を収納する箱体である。
【００１６】
また、図４に示すように、ケーシング５の側面板５ｄの片側には送風ファン１の駆動用のファンモーター２１がモーター固定部品２２により取り付けられ、その反対側にはドレンパン３に貯留されたドレン水を排出するドレンポンプ２３が取り付けられる。
なお、ケーシング５の両側面板５ｄ、５ｄに、ファンモーター２１を固定するモータ固定部２４とドレンポンプ２３を固定するドレンポンプ固定部２５が一体に設けられている。
【００１７】
次に、以上のように構成されたこの発明の天井埋込形空気調和機の動作を説明する。冷房時に、送風ファン１によって吸込口7より吸い込まれた室内空気は、熱交換器２により冷やされ、ケーシング５により形成された風路８を通り吹出口９より排出される。
このとき、ケーシング５が冷されるためケーシング５の裏面に水滴が生じる。この水滴は大半が背面板５ｃの傾斜面に沿って背面側樋部５ａに滴下しようとするが、分流リブ１１により両側面板５ｄ、５ｄの方向にも流れ、両側面板５ｄ、５ｄを伝わって側面側樋部５ｂ、５ｂに達するとともに、一部が背面板５ｃから背面側樋５ａに達する。
【００１８】
そして、背面側樋部５ａと側面側樋部５ｂ、５ｂに達した水滴は、側面側樋部５ｂ、５ｂの最下端部５ｅ、５ｅに流れ、ここに設けられた滴下穴１２より各々樋用ドレンパン部３ｃ、３ｃに回収される。
一方、熱交換器２に生じた水滴は、熱交換器用ドレンパン部３ａに滴下する。
このように、樋用ドレンパン部３ｃ、３ｃと熱交換器用ドレンパン部３ａからなるドレンパン３に回収され、回収された水滴は適宜ドレンポンプにより屋外に排出される。
なお、分流リブ１１は長さ、個数、角度等を変えて分流を調整することができる。
【００１９】
以上のように、ケーシング５は断熱材が不要であり、水滴が分流リブ１１により側面側樋部５ｂ、５ｂに流れるので、背面側樋部５ａに水滴が集中して流れないので、背面側樋部５ａ、側面側樋部５ｂ、５ｂに分散され、背面側樋部５ａ、側面側樋部５ｂ、５ｂの外面に結露が生じなく、背面側樋部５ａと側面側樋部５ｂ、５ｂからドレンパン３への接続手段も不要であり、簡単な構成により、冷房時に、ケーシング５及び箱体１０に生じた水滴を容易にドレンパン３に回収することができ、信頼性を高め、また、天井等に影響が生じないようにすることができる。
また、ケーシング５は一体構造とすることができ、部品点数を少なくすることができる。
また、ケーシング５の両側面板５ｄ、５ｄを、モータ固定部２４とドレンポンプ固定部２５６と各々一体にしたので、組み立て後の寸法精度を高くすることができ、低騒音化を図ることができる。
【００２０】
実施の形態２．
図４は実施の形態２を示す天井埋込形空気調和機の断面図、図５は天井埋込形空気調和機のケーシングとドレンパンの位置関係の斜視図である。図において、実施の形態１の図２と同じ部分には同一の符号を付し説明を省略する。図２との相違は、滴下穴１２はケーシング５の側面側樋部５ｂ、５ｂの最下端部５ｅ、５ｅだけでなく、背面側樋５ａ、側面側樋５ｂ、５ｂに各々複数の滴下穴１２を設け、ドレンパン３に背面側樋部５ａの下側に開口部を有し、背面側樋部５ａの両側壁に両側壁が沿うように設けられた樋部ドレンパンｂを設けた点である。従って、ドレンパン３は平面視が略Ｄ字状に一体に形成されている。
【００２１】
次に、以上のように構成されたこの発明の天井埋込形空気調和機の動作を説明する。冷房時に、送風ファン１によって吸込口7より吸い込まれた室内空気は、熱交換器２により冷やされ、ケーシング５により形成された風路８を通り吹出口９より排出される。
このとき、ケーシング５が冷されるためケーシング５の裏面に水滴が生じる。この水滴は大半が傾斜面に沿って背面側樋部５ａに滴下しようとするが、分流リブ１１により両側面板５ｄ、５ｄの方向にも流れ、両側面板５ｄ、５ｄのを伝わって側面側樋部５ｂ、５ｂに達するとともに、一部が背面板５ｃから背面側樋５ａに達する。
【００２２】
そして、背面側樋部５ａと側面側樋部５ｂ、５ｂに達した水滴は、背面側樋部５ａと側面側樋部５ｂ、５ｂに設けられた滴下穴１２より各々樋用ドレンパン部３ｂ、３ｃ、３ｃに回収される。
一方、熱交換器２に生じた水滴は、熱交換器用ドレンパン部３ａに滴下する。
このように、樋用ドレンパン部３ｂ、３ｃ、３ｃと熱交換器用ドレンパン部３ａからなるドレンパン３に回収され、回収された水滴は適宜ドレンポンプにより屋外に排出される。
【００２３】
以上のように、背面側樋部５ａと側面側樋部５ｂ、５ｂに水滴が分散されるとともに、複数の滴下穴１２から水滴をドレンパンに回収するので、背面側樋部５ａと側面側樋部５ｂ、５ｂの外面により一層結露が生じないようにでき、樋冷房時に、ケーシング５及び箱体１０に生じた水滴をより容易にドレンパン２回収することができ、より信頼性を高め、また、天井等に影響が生じないようにすることができる。
なお、本実施の形態は分流リブ１１を備えたものを示したが、背面側樋５ａに滴下穴１２を多くもうけることにより分流リブ１１は省いてもよい。
【００２４】
実施の形態３．
図６は実施の形態３を示す天井埋込形空気調和機の箱体とドレンパンの位置関係の斜視図である。図において、実施の形態１の図２と同じ部分には同一の符号を付し説明を省略する。ドレンパン３は、箱体１０の下端開口周縁部の下側に開口部を有し、外側壁が箱体１０の下端開口周縁部より大きくし、内側壁が背面側樋部５ａの内側壁に沿うように設けられた箱体・樋用ドレンパン部３ｄ、３ｄと側面側樋部５ｂ、５ｂの内側壁に沿うように設けられた箱体・樋用ドレンパン部３ｅ、３ｅ及び熱交換器用ドレンパン部３ａから構成され、平面視が日の字状に一体に形成されている。
【００２５】
以上の構成において、ケーシング５の裏面に生じた水滴は背面側樋部５ａと側面側樋部５ｂ、５ｂに達した水滴は、側面側樋部５ｂ、５ｂに設けられた滴下穴１２より各々箱体・樋用ドレンパン部３ｄ、３ｅ、３ｅに回収される。
一方、箱体１０に生じた水滴は箱体１０の下端開口周縁部から箱体・樋用ドレンパン部３ｄ、３ｄ、３ｅ、３ｅに回収される。また、熱交換器２に生じた水滴は、熱交換器用ドレンパン部３ａに回収される。
【００２６】
以上のように、箱体１０に生じた水滴も回収でき、より信頼性を高め、また、天井等に影響が生じないようにすることができる。
【００２７】
【発明の効果】
以上のように、この発明によれば、熱交換器と吹出口を覆うように設けられ、背面板と両側面板を有するケーシングと、このケーシングの前記背面板の下端縁部を断面略コの字状に形成した背面側樋部と、前記両側面板の下端縁部を断面略コの字状に形成し、前記背面側樋部と連接した側面側樋部と、前記背面板に設けられ、前記背面板から前記背面側樋部に滴下する水滴を前記側面側樋部に分流させる分流リブと、前記側面樋部の最下端部に設けられ、前記水滴を滴下させる滴下穴と、前記側面側樋部の下側に開口部を有し、この開口部の両側壁が前記側面側樋部の両側壁に両側壁が沿うように設けられたドレンパンと、を備えたので、簡単な構成により、冷房時に、ケーシング及び箱体に生じた水滴を容易に回収することができ、信頼性を高め、また、天井等に影響が生じないようにすることができる。
【００２８】
また、熱交換器と吹出口を覆うように設けられ、背面板と両側面板を有するケーシングと、このケーシングの前記背面板の下端縁部を断面略コの字状に形成した背面側樋部と、前記両側面板の下端縁部を断面略コの字状に形成し、前記背面側樋部と連接した側面側樋部と、前記背面側樋部及び側面樋部に設けられ、水滴を滴下させる複数の滴下穴と、前記側面側樋部及び前記背面側樋部の下側に開口部を有し、この開口部の両側壁が前記側面側樋部及び前記背面側樋部の両側壁に両側壁が沿うように設けられたドレンパンと、を備えたので、簡単な構成により、冷房時に、ケーシング及び箱体に生じた水滴をより容易に回収することができ、より信頼性を高め、また、天井等に影響が生じないようにすることができる。
【００２９】
また、熱交換器と吹出口を覆うように設けられ、背面板と両側面板を有するケーシングと、このケーシングを内装する箱体と、前記ケーシングの前記背面板の下端縁部を断面略コの字状に形成した背面側樋部と、前記両側面板の下端縁部を断面略コの字状に形成し、前記背面側樋部と連接した側面側樋部と、前記背面板に設けられ、前記背面板から前記背面側樋部に滴下する水滴を前記側面側樋部に分流させる分流リブと、前記側面樋部の最下端部に設けられ、前記水滴を滴下させる滴下穴と、前記箱体の下端開口周縁部の下側に開口部を有し、この開口部の外側壁が前記箱体の前記下端開口周縁部より大きくし、内側壁が前記側面側樋部及び前記背面側樋部の内側壁に沿うように設けられたドレンパンと、を備えたので、簡単な構成により、冷房時に、ケーシング及び箱体に生じた水滴をより容易に回収することができ、より信頼性を高め、また、天井等に影響が生じないようにすることができる。
【００３０】
また、熱交換器と吹出口を覆うように設けられ、背面板と両側面板を有するケーシングと、このケーシングを内装する箱体と、前記ケーシングの前記背面板の下端縁部を断面略コの字状に形成した背面側樋部と、前記両側面板の下端縁部を断面略コの字状に形成し、前記背面側樋部と連接した側面側樋部と、前記背面側樋部及び側面樋部に設けられ、水滴を滴下させる複数の滴下穴と、前記箱体の下端開口周縁部の下側に開口部を有し、この開口部の外側壁が前記箱体の前記下端開口周縁部より大きくし、前記開口部の内側壁が前記側面側樋部及び前記背面側樋部の内側壁に沿うように設けられたドレンパンと、を備えたので、簡単な構成により、冷房時に、ケーシング及び箱体に生じた水滴をより容易に回収することができ、より信頼性を高め、また、天井等に影響が生じないようにすることができる。
【００３１】
また、前記背面板に設けられ、前記背面板から背面側樋部に滴下する水滴を側面側樋部に分流させる分流リブを備えたので、ケーシング及び箱体に生じた水滴をより容易に回収することができ、より信頼性を高め、また、天井等に影響が生じないようにすることができる。
【００３２】
また、前記ドレンパンを、熱交換器の下部に設けられた熱交換器用ドレンパンと一体にしたので、部品点数を少なくすることができる。
【００３３】
また、空気を吸込口より吸い込み、吹出口から排出させる送風ファンを備え、前記ケーシングの両側面板を、前記送風ファンを駆動するモーターを固定するモータ固定部と前記ドレンパンに貯留されたドレン水を排出するドレンポンプを固定するドレンポンプ固定部と各々一体にしたので、組み立て後の寸法精度を高くすることができ、低騒音化を図ることができる。
【図面の簡単な説明】
【図１】この発明による実施の形態１を示す天井埋込形空気調和機の断面図である。
【図２】この発明による実施の形態１を示す天井埋込形空気調和機のケーシングとドレンパンの位置関係の斜視図である。
【図３】この発明による実施の形態１を示す天井埋込形空気調和機の分解斜視図である。
【図４】この発明による実施の形態２を示す天井埋込形空気調和機の断面図である。
【図５】この発明による実施の形態２を示す天井埋込形空気調和機のケーシングとドレンパンの位置関係の斜視図である。
【図６】この発明による実施の形態３を示す天井埋込形空気調和機の箱体とドレンパンの位置関係の斜視図である。
【図７】従来の天井埋込形空気調和機の断面図である。
【符号の説明】
１送風ファン、２熱交換器、３ドレンパン、３ａ熱交換器用ドレンパン部、３ｂ、３ｃ樋用ドレンパン部、３ｄ、３ｅ箱体・樋用ドレンパン部、５ケーシング、５ａ背面側樋部、５ｂ側面側樋部、５ｃ背面板、５ｄ側面板、５ｅ最下端部、７吸込口、８風路、９吹出口。１０外箱、１１分流リブ、１２滴下穴、２０本体、２１ファンモータ、２２ドレンポンプ、２４ファンモータ固定部、２５ドレンポンプ固定部。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a ceiling-embedded air conditioner having an improved structure for collecting water droplets generated in a ceiling-embedded air conditioner.
[0002]
[Prior art]
FIG. 7 is a sectional view of an indoor unit of a conventional ceiling-embedded air conditioner (hereinafter referred to as a ceiling-embedded air conditioner). In the figure, 1 is a blower fan, 2 is a heat exchanger, and is composed of heat exchangers 2a and 2b. 13 is a heat exchanger drain pan for collecting water droplets generated in the heat exchanger 2, 4 is a stabilizer, 15 is a casing, and includes an outer shell 15a and a heat insulating material (for example, polystyrene foam) 15b. Reference numeral 6 denotes an upper and lower vane for changing the air direction, and 7 is a suction port, which is composed of a suction port 7a on the heat exchanger 2a side and a suction port 7b on the heat exchanger 2b side. 8 is an air passage formed by the casing 15, 9 is a blowout port, and 10 is a box that houses the casing and the like.
[0003]
In this configuration, the room air sucked from the suction port 7 by the blower fan 1 during cooling is cooled by the heat exchanger 2, passes through the air passage 8, and is discharged from the blowout port 9.
At this time, water droplets generated in the heat exchanger 2 are collected in the heat exchanger drain pan 13. Further, since the casing 15 forming the air passage is cooled, a heat insulating material (for example, styrofoam) 15b having a heat insulating effect is used to prevent water droplets from being generated on the back surface of the casing 15 (upper side of the hatched portion in the figure). .
[0004]
[Problems to be solved by the invention]
However, in the conventional ceiling-embedded air conditioner as described above, when the casing 15 is insufficiently insulated, water droplets are generated on the back surface of the casing 15 and also on the box body 10, and the water droplets are caused by the water droplets. The reliability of the machine is reduced, and if water drops accumulate in the water receiving part etc. in the middle of collecting the water drops in the drain pan, the water drops are cooled, and water drops due to condensation are generated on the outer surface of the water receiving part. Removal is difficult, and the structure of the casing 15 requires the heat insulating material 15b, so that the structure is not simple. Further, there is a problem in that the ceiling or the like to which the apparatus is attached is affected by water droplets.
[0005]
This invention was made to solve the problems as described above, does not use a heat insulating material, and with a simple configuration, water droplets generated in the casing and the box can be easily recovered during cooling, An object is to provide a ceiling-embedded air conditioner that can improve reliability, reduce the number of parts, reduce noise, and prevent the ceiling and the like from being affected.
[0006]
[Means for Solving the Problems]
The ceiling-embedded air conditioner according to the present invention is provided so as to cover the heat exchanger and the air outlet, and includes a casing having a back plate and both side plates, and a lower end edge of the back plate of the casing. A back side flange formed in a U-shape, a lower edge of the both side plates are formed in a substantially U-shaped cross section, a side flange connected to the back side flange, and provided on the back plate A plurality of diverting ribs for diverting water droplets dripping from the back plate to the back side saddle to the side face saddle, a dripping hole provided at the lowermost end of the side saddle and dropping the water droplets, the side surface side trough has an opening on the lower side of, and a drain pan provided so that both side walls side walls extends along the side walls of the side surface side trough of the opening, the side surface side gutter And the back side flange are inclined downward toward the dripping hole.
[0007]
A casing provided to cover the heat exchanger and the outlet, and having a back plate and both side plates, and a back side flange portion having a lower end edge of the back plate of the casing formed in a substantially U-shaped cross section; The lower edge of the both side plates is formed in a substantially U-shaped cross section , is provided on the side plate that is connected to the back side flange, and is provided on the back plate, from the back plate to the back side flange. A plurality of diverting ribs for diverting a water droplet to be dropped to the side surface flange, a plurality of dropping holes provided in the back surface flange and the side flange, and dropping the water droplet, the side surface flange and the back side A drain pan having an opening on the lower side of the flange, and both side walls of the opening are provided so that both side walls are along the side walls of the side surface flange and the back side flange, The side side collar and the back side collar are inclined downward toward the dripping hole. It is.
[0008]
The casing is provided so as to cover the heat exchanger and the air outlet, and has a back plate and side plates, a box that houses the casing, and a lower edge of the back plate of the casing. A rear side flange formed in a shape, and a lower end edge of the both side plates are formed in a substantially U-shaped cross section, a side side flange connected to the rear side flange, and provided on the back plate, A plurality of diverting ribs for diverting water drops dripping from the back plate to the back side saddle to the side face saddle; a dripping hole provided at the lowest end of the side face saddle; There is an opening below the lower end opening peripheral edge of the body, the outer wall of the opening is larger than the lower end opening peripheral edge of the box, and the inner side walls are the side side flange and the back side flange And a drain pan provided along the inner wall.
[0009]
The casing is provided so as to cover the heat exchanger and the air outlet, and has a back plate and side plates, a box that houses the casing, and a lower edge of the back plate of the casing. A rear side flange formed in a shape, and a lower end edge of the both side plates are formed in a substantially U-shaped cross section, a side side flange connected to the rear side flange, and provided on the back plate, A plurality of diverting ribs for diverting water droplets dripping from the back plate to the back side collar part to the side side collar part, a plurality of dropping holes provided on the back side collar part and the side collar part, and for dripping water drops, The box has an opening below the peripheral edge of the lower end opening of the box, the outer wall of the opening is larger than the peripheral edge of the lower end of the box, and the inner wall of the opening is the side flange and and a drain pan provided along the inner wall of the back-side gutter The side surface side trough and said rear-side trough, in which is inclined downward toward the dropping hole.
[0011]
Also, the drain pan is obtained by the heat exchanger drain pan integrally provided at the lower portion of the heat exchanger.
[0012]
In addition, it has a blower fan that sucks air from the suction port and discharges it from the blower outlet, and drains the drain water stored in the drain pan and the motor fixing part that fixes the motor that drives the blower fan on both side plates of the casing. And a drain pump fixing portion for fixing the drain pump.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
FIG. 1 is a cross-sectional view of a ceiling-embedded air conditioner showing Embodiment 1, FIG. 2 is a perspective view of a positional relationship between a casing of a main body of the ceiling-embedded air conditioner and a drain pan, and FIG. It is a disassembled perspective view of an air conditioner. In the figure, 1 is a blower fan, 2 is a heat exchanger, and is composed of heat exchangers 2a and 2b. 4 is a stabilizer, and 5 is a casing that is provided so as to cover the heat exchanger 2 and the air outlet 9 and forms an air passage. The casing 5 is provided on the back plate 5c, both side plates 5d, and 5d back plate 5c, It has a letter-shaped diverting rib 11 for water droplets generated on the back plate 5c to divert water drops flowing down the inclined surface of the back plate 5c to the left and right, and the lower end edge of the back plate 5c is substantially U-shaped in cross section. The bottom edge of the rear side flange 5a and the side plates 5d and 5d are formed in a substantially U-shaped cross section, and are composed of the lowermost end 5e, 5e inclined portions 5f, 5f upper portions 5g and 5g. The side portions 5e and 5e are provided on the side surface flange portions 5b and 5b connected to the back surface flange portion, and the bottom end portions 5e and 5e of the side surface flange portions 5b and 5b, and are provided with a dropping hole 12 for dropping water droplets.
[0014]
Reference numeral 6 denotes an upper and lower vane for changing the air direction, and 7 is a suction port, which is composed of a suction port 7a on the heat exchanger 2a side and a suction port 7b on the heat exchanger 2b side. 8 is an air passage formed by the casing 5, and 9 is an air outlet.
In addition, the back plate side flange 5a is inclined so that water droplets flow in the holes 12 provided in the lowermost ends 5e, 5e of the side flanges 5b, 5b, and the upper portion 5g of the side flanges 5b, 5b, 5 g is also inclined toward the lowermost ends 5 e and 5 e.
[0015]
3 is a drain pan, which is provided on the lower side of the lower portion of the heat exchanger 2 so that the opening faces the lower portion of the heat exchanger 2, and a drain pan portion 3a for the heat exchanger that collects water droplets generated in the heat exchanger 2. It is composed of heel drain pan portions 3c and 3c provided with openings on the lower side of the side surface flange portions 5b and 5b, and provided on both side walls of the side surface flange portions 5b and 5b. Are integrally formed in an I-shape.
20 is a main body composed of a heat exchanger 2, a casing 5 in which the blower fan 1 is installed, a stabilizer 4, an upper and lower vane 6, and a drain pan 3. It is a box that houses the main body 20.
[0016]
As shown in FIG. 4, a fan motor 21 for driving the blower fan 1 is attached to one side of the side plate 5d of the casing 5 by a motor fixing component 22, and the drain stored in the drain pan 3 is on the opposite side. A drain pump 23 for discharging water is attached.
Note that a motor fixing portion 24 for fixing the fan motor 21 and a drain pump fixing portion 25 for fixing the drain pump 23 are integrally provided on both side plates 5 d and 5 d of the casing 5.
[0017]
Next, the operation of the ceiling-embedded air conditioner of the present invention configured as described above will be described. At the time of cooling, the indoor air sucked from the suction port 7 by the blower fan 1 is cooled by the heat exchanger 2, passes through the air passage 8 formed by the casing 5, and is discharged from the blower outlet 9.
At this time, since the casing 5 is cooled, water droplets are generated on the back surface of the casing 5. Most of the water droplets try to drip on the back side flange 5a along the inclined surface of the back plate 5c, but also flow in the direction of the side plates 5d and 5d by the diverting rib 11 and travel along the side plates 5d and 5d to the side surface. While reaching the side flanges 5b and 5b, a part reaches the back side flange 5a from the back plate 5c.
[0018]
And the water droplet which reached the back surface side collar part 5a and the side surface side collar parts 5b and 5b flows into the lowermost end parts 5e and 5e of the side surface side collar parts 5b and 5b, and is each for dredging from the dripping hole 12 provided here. Collected in the drain pans 3c and 3c.
On the other hand, water droplets generated in the heat exchanger 2 are dripped onto the heat exchanger drain pan portion 3a.
As described above, the water droplets collected in the drain pan 3 including the drain pan portions 3c and 3c for dredging and the drain pan portion 3a for the heat exchanger are appropriately discharged to the outdoors by a drain pump.
The diversion rib 11 can adjust the diversion by changing the length, the number, the angle, and the like.
[0019]
As described above, the casing 5 does not require a heat insulating material, and since water droplets flow to the side surface side flanges 5b and 5b by the diverting rib 11, the water droplets do not concentrate and flow on the back side flange 5a. Drain pan from the rear side flange 5a and the side flanges 5b, 5b without condensation on the outer surface of the rear flange 5a, the side flanges 5b, 5b. No connection means is required, and with a simple configuration, water droplets generated in the casing 5 and the box 10 can be easily collected in the drain pan 3 during cooling. It is possible to prevent the influence from occurring.
Moreover, the casing 5 can be made into an integral structure, and the number of parts can be reduced.
Moreover, since the both side plates 5d and 5d of the casing 5 are integrated with the motor fixing portion 24 and the drain pump fixing portion 256, respectively, the dimensional accuracy after assembly can be increased, and the noise can be reduced.
[0020]
Embodiment 2. FIG.
4 is a cross-sectional view of a ceiling-embedded air conditioner showing Embodiment 2, and FIG. 5 is a perspective view of a positional relationship between a casing and a drain pan of the ceiling-embedded air conditioner. In the figure, the same parts as those in FIG. 2 of the first embodiment are denoted by the same reference numerals, and description thereof is omitted. The difference from FIG. 2 is that the drip holes 12 are provided not only on the lowermost end portions 5e and 5e of the side surface flanges 5b and 5b of the casing 5, but also on the back surface flange 5a and the side surface flanges 5b and 5b. The drain pan 3 has an opening below the back side flange 5a, and a flange drain pan b provided so that both side walls are along the side walls of the back side flange 5a. Accordingly, the drain pan 3 is integrally formed in a substantially D shape in plan view.
[0021]
Next, the operation of the ceiling-embedded air conditioner of the present invention configured as described above will be described. At the time of cooling, the indoor air sucked from the suction port 7 by the blower fan 1 is cooled by the heat exchanger 2, passes through the air passage 8 formed by the casing 5, and is discharged from the blower outlet 9.
At this time, since the casing 5 is cooled, water droplets are generated on the back surface of the casing 5. Most of the water droplets try to drop on the rear side flange 5a along the inclined surface, but also flow in the direction of the side plates 5d and 5d by the diverting rib 11, and are transmitted along the side plates 5d and 5d to the side side flange. Along with reaching 5b and 5b, a part of the back plate 5c reaches the back side saddle 5a.
[0022]
And the water droplet which reached the back side collar part 5a and the side surface collar parts 5b, 5b is respectively the drain pan part 3b, 3c for dredging from the dripping hole 12 provided in the back side collar part 5a and the side surface collar parts 5b, 5b. 3c.
On the other hand, water droplets generated in the heat exchanger 2 are dripped onto the heat exchanger drain pan portion 3a.
In this way, the water droplets collected in the drain pan 3 including the drain pan portions 3b, 3c, 3c for dredging and the drain pan portion 3a for the heat exchanger are appropriately discharged outdoors by a drain pump.
[0023]
As described above, water droplets are dispersed in the back side flange 5a and the side flanges 5b, 5b, and water drops are collected in the drain pan from the plurality of dripping holes 12, so that the back side flange 5a and the side flanges are collected. The outer surfaces of 5b and 5b can prevent further condensation, and water droplets generated in the casing 5 and the box body 10 can be collected more easily during cooling, improving the reliability and improving the ceiling. Etc. can be prevented from being affected.
In addition, although this Embodiment showed what was equipped with the flow dividing rib 11, you may omit the flow dividing rib 11 by making many dripping holes 12 in the back side face 5a.
[0024]
Embodiment 3 FIG.
FIG. 6 is a perspective view of the positional relationship between the box body and the drain pan of the ceiling-embedded air conditioner showing the third embodiment. In the figure, the same parts as those in FIG. 2 of the first embodiment are denoted by the same reference numerals, and description thereof is omitted. The drain pan 3 has an opening below the peripheral edge of the lower end opening of the box body 10, the outer wall is made larger than the peripheral edge of the lower end opening of the box body 10, and the inner wall is along the inner wall of the rear side flange 5 a. Box / pan drain pan portions 3e, 3e and heat exchanger drain pan portion 3a provided along the inner walls of the box / pan drain pan portions 3d, 3d and the side side flange portions 5b, 5b. The plan view is integrally formed in a Japanese character shape.
[0025]
In the above-described configuration, water droplets generated on the back surface of the casing 5 reach the back side flange 5a and the side flanges 5b, 5b. It is collected in the body and heel drain pan sections 3d, 3e, and 3e.
On the other hand, water droplets generated in the box body 10 are collected from the peripheral edge of the lower end opening of the box body 10 to the box / pan drain pan portions 3d, 3d, 3e, and 3e. Moreover, the water droplet produced | generated in the heat exchanger 2 is collect | recovered by the drain pan part 3a for heat exchangers.
[0026]
As described above, water droplets generated in the box 10 can also be collected, so that the reliability can be further improved and the ceiling or the like can be prevented from being affected.
[0027]
【The invention's effect】
As described above, according to the present invention, a casing provided to cover the heat exchanger and the air outlet and having a back plate and both side plates, and a lower edge of the back plate of the casing are substantially U-shaped in cross section. A rear side flange formed in a shape, and a lower end edge of the both side plates are formed in a substantially U-shaped cross section, a side side flange connected to the rear side flange, and provided on the back plate, A diverting rib for diverting a water drop dripping from the back plate to the back side collar part to the side face collar part, a dripping hole provided at the lowermost end part of the side face collar part for dripping the water drop, and the side side collar And a drain pan provided so that both side walls of the opening are along the both side walls of the side side flange. Sometimes, the water droplets generated in the casing and box can be easily recovered, and the reliability Increase, also, it is possible to prevent the occurrence affect the ceiling like.
[0028]
A casing provided to cover the heat exchanger and the outlet, and having a back plate and both side plates, and a back side flange portion having a lower end edge of the back plate of the casing formed in a substantially U-shaped cross section; The lower end edge of each side plate is formed in a substantially U-shaped cross-section, and is provided on the side-side collar connected to the back-side collar, the back-side collar and the side collar, and drops water drops. There are a plurality of dripping holes, and openings are provided below the side surface flange and the back surface flange, and both side walls of the opening are opposite to both side walls of the side surface flange and the back surface flange. With a drain pan provided along the wall, it is possible to more easily collect water droplets generated in the casing and the box during cooling with a simple configuration, and further improve reliability. It is possible to prevent the ceiling from being affected.
[0029]
The casing is provided so as to cover the heat exchanger and the air outlet, and has a back plate and side plates, a box that houses the casing, and a lower edge of the back plate of the casing. A rear side flange formed in a shape, and a lower end edge of the both side plates are formed in a substantially U-shaped cross section, a side side flange connected to the rear side flange, and provided on the back plate, A diverting rib for diverting water droplets dropped from the back plate to the back side saddle to the side face saddle, a dripping hole provided at the lowermost end of the side saddle and dropping the water drops, and the box An opening is provided on the lower side of the peripheral edge of the lower end opening, the outer wall of the opening is larger than the peripheral edge of the lower end opening of the box, and the inner wall is the inner side of the side surface flange and the back surface flange. With a drain pan provided along the wall, with a simple configuration During cooling, water droplets generated in the casing and the box body can be made more easily recovered, more improved reliability, and can be so that no influence on the ceiling or the like.
[0030]
The casing is provided so as to cover the heat exchanger and the air outlet, and has a back plate and side plates, a box that houses the casing, and a lower edge of the back plate of the casing. A back side flange formed in a shape, a lower end edge of the both side plates formed in a substantially U-shaped cross section, a side side flange connected to the back side flange, and the back side flange and the side flange A plurality of dripping holes for dropping water droplets, and an opening on a lower side of the lower end opening peripheral portion of the box body, and an outer wall of the opening portion from the lower end opening peripheral portion of the box body And a drain pan provided so that the inner side wall of the opening is along the inner side wall of the side side flange and the rear side flange. Water droplets generated on the body can be collected more easily and more reliably Because, also, it is possible to prevent the occurrence affect the ceiling or the like.
[0031]
Further, provided on the back plate, because with a shunt ribs diverting water droplets dropping on the back side trough portion from the back plate to the side surface side trough, more easily remove drops occurring in the casing and the box It is possible to improve the reliability and prevent the ceiling from being affected.
[0032]
Also, the drain pan, since the integrated heat exchanger drain pan provided below the heat exchanger, it is possible to reduce the number of parts.
[0033]
In addition, it has a blower fan that sucks air from the suction port and discharges it from the blower outlet, and drains the drain water stored in the drain pan and the motor fixing part that fixes the motor that drives the blower fan on both side plates of the casing. Since the drain pump fixing portions for fixing the drain pump to be fixed are integrated with each other, the dimensional accuracy after assembly can be increased, and the noise can be reduced.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a ceiling-embedded air conditioner showing a first embodiment according to the present invention.
FIG. 2 is a perspective view of a positional relationship between a casing and a drain pan of a ceiling-embedded air conditioner showing Embodiment 1 according to the present invention.
FIG. 3 is an exploded perspective view of a ceiling-embedded air conditioner showing Embodiment 1 according to the present invention.
FIG. 4 is a sectional view of a ceiling-embedded air conditioner showing a second embodiment according to the present invention.
FIG. 5 is a perspective view of a positional relationship between a casing and a drain pan of a ceiling-embedded air conditioner according to a second embodiment of the present invention.
FIG. 6 is a perspective view of a positional relationship between a box body and a drain pan of a ceiling-embedded air conditioner showing Embodiment 3 according to the present invention.
FIG. 7 is a cross-sectional view of a conventional ceiling-embedded air conditioner.
[Explanation of symbols]
1 Blower, 2 Heat exchanger, 3 Drain pan, 3a Drain pan part for heat exchanger, 3b, 3c Drain pan part for dredging, 3d, 3e Drain pan part for box and dredging, 5 Casing, 5a Back side saddle, 5b Side face A collar part, 5c back plate, 5d side plate, 5e lowest end part, 7 suction inlet, 8 air passage, 9 blower outlet. 10 Outer box, 11 Dividing rib, 12 Drip hole, 20 Main body, 21 Fan motor, 22 Drain pump, 24 Fan motor fixing part, 25 Drain pump fixing part.

Claims

A casing provided to cover the heat exchanger and the air outlet, and having a back plate and both side plates;
A back side flange portion formed in a substantially U-shaped cross section at the lower end edge of the back plate of the casing;
The lower end edge part of the both side surface plates is formed in a substantially U-shaped cross section, and the side surface side collar part connected to the back side collar part,
A plurality of diversion ribs provided on the back plate and for diverting water droplets dripping from the back plate to the back side ridges to the side surface ridges;
A drip hole provided at the lowermost end of the side ridge and allowing the water droplets to drip;
A drain pan provided with an opening on the lower side of the side-side flange, the side walls of the opening being provided so that the side walls are along the side walls of the side-side flange;
Equipped with a,
The ceiling-embedded air conditioner characterized in that the side-side flange and the back-side flange are inclined downward toward the dripping hole .

A casing provided to cover the heat exchanger and the air outlet, and having a back plate and both side plates;
A back side flange portion formed in a substantially U-shaped cross section at the lower end edge of the back plate of the casing;
The lower end edge part of the both side surface plates is formed in a substantially U-shaped cross section, and the side surface side collar part connected to the back side collar part,
A plurality of diversion ribs provided on the back plate and for diverting water droplets dripping from the back plate to the back side ridges to the side surface ridges;
A plurality of drip holes provided in the back side ridge and side ridges for dropping water drops;
An opening is provided below the side surface flange and the back surface flange, and both side walls of the opening are provided so that both side walls are along the side walls of the side surface flange and the back surface flange. Drained bread,
Equipped with a,
The ceiling-embedded air conditioner characterized in that the side-side flange and the back-side flange are inclined downward toward the dripping hole .

A casing provided to cover the heat exchanger and the air outlet, and having a back plate and both side plates;
A box that houses this casing;
A back side flange portion formed in a substantially U-shaped cross section at the lower end edge of the back plate of the casing;
The lower end edge part of the both side surface plates is formed in a substantially U-shaped cross section, and the side surface side collar part connected to the back side collar part,
A plurality of diversion ribs provided on the back plate and for diverting water droplets dripping from the back plate to the back side ridges to the side surface ridges;
A drip hole provided at the lowermost end of the side ridge and allowing the water droplets to drip;
An opening is provided below the peripheral edge of the lower end opening of the box, the outer wall of the opening is larger than the peripheral edge of the lower end opening of the box, and the inner side walls are the side side flange and the back side. A drain pan provided along the inner wall of the buttocks;
A ceiling-embedded air conditioner characterized by comprising:

A casing provided to cover the heat exchanger and the air outlet, and having a back plate and both side plates;
A box that houses this casing;
A back side flange portion formed in a substantially U-shaped cross section at the lower end edge of the back plate of the casing;
The lower end edge part of the both side surface plates is formed in a substantially U-shaped cross section, and the side surface side collar part connected to the back side collar part,
A plurality of diversion ribs provided on the back plate and for diverting water droplets dripping from the back plate to the back side ridges to the side surface ridges;
A plurality of drip holes provided in the back side ridge and side ridges for dropping water drops;
The box has an opening below the peripheral edge of the lower end opening of the box, the outer wall of the opening is larger than the peripheral edge of the lower end of the box, and the inner wall of the opening is the side flange And a drain pan provided along the inner wall of the back side collar,
Equipped with a,
The ceiling-embedded air conditioner characterized in that the side-side flange and the back-side flange are inclined downward toward the dripping hole .

The ceiling-embedded air conditioner according to any one of claims 1 to 4 , wherein the drain pan is integrated with a heat exchanger drain pan provided at a lower portion of the heat exchanger.

It has a blower fan that sucks air from the inlet and exhausts it from the outlet.
The both side plates of the casing are integrated with a motor fixing portion for fixing a motor for driving the blower fan and a drain pump fixing portion for fixing a drain pump for discharging drain water stored in the drain pan. The ceiling-embedded air conditioner according to any one of claims 1 to 5 .