JP4280114B2

JP4280114B2 - Air conditioner

Info

Publication number: JP4280114B2
Application number: JP2003163752A
Authority: JP
Inventors: 常俊井上; 一久佐藤; 裕一田井; 要仙道
Original assignee: Toshiba Carrier Corp
Current assignee: Toshiba Carrier Corp
Priority date: 2003-06-09
Filing date: 2003-06-09
Publication date: 2009-06-17
Anticipated expiration: 2023-06-09
Also published as: JP2005003217A

Description

【０００１】
【発明の属する技術分野】
本発明は、室内熱交換器と室外熱交換器とを本体内に収容する、いわゆる一体形の空気調和機において、冷房運転時に生成されるドレン水の処理構造の改良に関する。
【０００２】
【従来の技術】
たとえば、エレベータ装置を構成するゴンドラ（以下、単にエレベータと言う）天井部に、エレベータ内部を冷房し、もしくは暖房する空気調和機が載設される。この空気調和機は、冷凍サイクルを利用し、本体内に室内熱交換器と室外熱交換器を備えた、いわゆる一体形のものが用いられる。
【０００３】
冷房運転時には、室内熱交換器で熱交換される空気の露点が低下して水分が凝縮し、ドレン水となって滴下する。この室内熱交換器の下部にはドレンパンが配置され、全てのドレン水が集溜される。
【０００４】
この種の空気調和機では、ドレンパンで受けたドレン水を室外熱交換器側に導びき、この室外熱交換器に対向して配置される掻き上げ手段である、たとえばスリンガリングによって掻き上げられる。室外熱交換器にドレン水を散布することで、室外熱交換器の熱交換効率の向上化を得るとともに、ドレン水の円滑な蒸発処理がなされる。
【０００５】
［特許文献１］には、上述の基本構成に加えて、上記掻き上げ手段を複数備えたうえに、掻き上げたドレン水に外気吸込み口から吸込まれる外気を混合させる技術が開示されていて、風切り音の騒音低減を得るとともに、ドレン水蒸散効率向上化と、室外熱交換器の熱交換性能の向上を得るようにしている。
【０００６】
【特許文献１】
特開２００１−３２４１７１号公報
【０００７】
【発明が解決しようとする課題】
ところで、上記室外熱交換器は平面視で直状もしくは［特許文献１］に記載のようにＬ字状に形成されていて、この室外熱交換器に離間対向して上記スリンガリングが配置され、ドレン水を掻き上げる。掻き上げられたドレン水は霧状になって室外熱交換器に吹付けられ、室外熱交換器に付着する。
【０００８】
しかしながら実際には、上記スリンガリングは回転駆動される羽根体に取付けられるものであるから、スリンガリングの回転にともなって、ドレン水はスリンガリングから斜め周方向に放射状に飛散される。そのため、スリンガリングが掻き上げたドレン水が全て室外熱交換器に吹付けられるとは限らず、一部は室外熱交換器に付着せずに外部に飛散し易い。
【０００９】
上記空気調和機本体は板金加工により製作される板体を単純に組合せてなる筐体であり、水密構造にはなっていない。そのため、室外熱交換器に付着せずに飛散したドレン水滴が本体壁面に付着して流下し、ついには本体外部へ漏れ出る虞れがある。筐体を完全水密構造にすればこのような事故の発生を防止できるが、コストに悪影響を及ぼしてしまう。
【００１０】
本発明は、上述の事情を考慮してなされたものであり、その目的とするところは、本体内に室内熱交換器と室外熱交換器とを配置した一体形であり、室内熱交換器で生成されるドレン水を室外熱交換器へ飛散させて蒸発処理することを前提として、比較的簡素な構成でありながら、ドレン水を確実に室外熱交換器のみへ飛散させ、ドレン水の蒸発処理の効率向上化を得るとともに、室外熱交換器の熱交換効率の向上化を図れる空気調和機を提供しようとするものである。
【００１１】
【課題を解決するための手段】
本発明の空気調和機は上述の目的を満足するためになされたものであり、筐体である空気調和機本体内部を室内ユニット部と室外ユニット部に、左右二室に区画形成し、室内ユニット部に室内熱交換器および室内送風機を配置し、室外ユニット部を構成する空気調和機本体の左右両側面板に外気吸込み口、背面板に吹出し口を設け、上記室外ユニット部の背面側で一側部に圧縮機を配置し、圧縮機と並ぶ室外ユニット部の背面側の他側部で吹出し口と対向して室外送風機を配置し、室外送風機に隣接し外気吸込み口から室外送風機に至る送風路の中途部に室外熱交換器を配置し、室内ユニット部から室外ユニット部に亘って室内熱交換器で生成されるドレン水を室外熱交換器下部に導くドレン水案内手段を設け、このドレン水案内手段により室外熱交換器下部に導かれたドレン水を掻き上げて室外熱交換器に降り掛け室外熱交換器で蒸散させる掻き上げ手段を具備し、
室外熱交換器は、平面視で略Ｌ字状に形成される第１の熱交換器部および第２の熱交換器部とからなり、これら第１の熱交換器部と第２の熱交換器部の端部相互を連結するとともに、連結部に沿って隙間を閉塞する連結板を設けて平面視で略ロ字状となし、室外熱交換器の略中心部に掻き上げ手段を配置して、掻き上げ手段の前後左右周囲を囲うように形成される。
【００１２】
このような構成を採用することにより、室内熱交換器で生成されるドレン水を確実に室外熱交換器のみへ飛散させて、ほとんど完全な蒸発処理ができるようになり、室外熱交換器の熱交換効率が向上する。
【００１３】
【発明の実施の形態】
以下、本発明の実施態様を、図面にもとづいて詳細に説明する。
図１は、エレベータ装置を構成するゴンドラ（以下、単にエレベータと言う）Ａと、このエレベータの天井部ａに載設される空気調和機Ｓの斜視図である。
【００１４】
上記エレベータＡは、図の手前側である前面に開閉扉ｂが設けられ、内部に乗員が出入りできる。上記空気調和機Ｓとは別の天井部位にワイヤｃが接続され、エレベータＡはワイヤｃによって吊持される。
【００１５】
この上方部には巻き上げ機が配置され、一端にエレベータＡを吊持するワイヤａが巻き付けられる。また、ワイヤａの他端にはガイドレールに沿って移動するウエイトが取付けられ、エレベータＡとバランスをとって昇降駆動される。（以上、図示しない）
上記空気調和機Ｓは、図２ないし図４に示すように構成される。図２は空気調和機本体の上面板を取外して内部を示す斜視図、図３は空気調和機本体の側面板一部を取外して内部を示す斜視図、図４は空気調和機本体の上面板を取外して内部を示す平面図である。
【００１６】
空気調和機本体１は、正面視と側面視および平面視ともに矩形状の筐体からなっている。この本体１内の長手方向の略中央部から、図の左側は上面が一部を除いて閉塞され、図の右側は上面が開放されている。上面が閉塞された部位を室内ユニット部２と呼び、開放された部位を室外ユニット部３と呼ぶ。互いのユニット部２，３は本体1内において区画形成されている。
【００１７】
はじめに、上記室内ユニット部２から詳述する。
本体１の底面板に室内吸込み口が設けられ、側面板に室内吹出し口（何れも図示しない）が設けられる。これら室内吸込み口と室内吹出し口と対向するエレベータＡの天井部ａには同一形状の開口部が設けられ、室内ユニット部２とエレベータＡ内部とは直接、もしくはダクトを介して互いに連通状態にある。
【００１８】
また、室内吸込み口と室内吹出し口との間に位置して室内熱交換器４が配置される。この室内熱交換器４は、両側の端板間に多数枚のフィンを互いに所定の間隙を存して並置し、これら端板とフィンに熱交換パイプを貫通させた、いわゆるフィンチューブタイプである。
【００１９】
室内ユニット部２において、上記室内熱交換器４の上面のみ開放され露出しているが、本体上面板を取付けた状態で、この上面板が室内熱交換器４の上面部にほとんど密着して隙間が存在しないようになっている。
【００２０】
上記室内熱交換器４と対向してファン５ａが設けられ、かつこのファン５ａを回転駆動するファンモータ５ｂとからなる室内送風機５が配置されている。上記ファン５ａは、いわゆるシロッコファンと呼ばれていて、回転駆動することにより回転軸方向から空気を吸込んで周方向から吹出す。上記シロッコファン５ａの吹出し側にはダクト６が取付けられていて、このダクト６の端部は上記室内吹出し口まで延出され、かつ接続される。
【００２１】
このような室内ユニット部２の底面部は、上記室内熱交換器４で生成されるドレン水を受けるドレンパン（ドレン水案内手段）７として形成されている。そして、このドレンパン７は室内ユニット部２ばかりでなく、室内ユニット部２から室外ユニット部３に亘る本体１の底面板全体が該当する。
【００２２】
つぎに室外ユニット部３について説明する。
空気調和機本体１の両側面板１ｂにそれぞれ外気吸込み口８が設けられる。本体１の背面板１ｃにはファンガードで覆われる吹出し口９が設けられる。図１に示すエレベータＡを基準にしてみると、開閉扉ｂが設けられる面と空気調和機本体１の同一面に背面板１ｃがあって、ここに吹出し口９が開口する。なお、エレベータＡに対する本体の配置方向は図１に限定されるものではなく、エレベータの設計事情に応じて適宜変更可能である。
【００２３】
室外ユニット部３の隅部に圧縮機１０が配置され、この周囲は補助仕切り板１１によって囲まれる。上記補助仕切り板１１を備えることによって、圧縮機１０から室内吸込み口と室内熱交換器４とに対する熱的影響がより確実に阻止され、かつ騒音の漏れが防止される。
【００２４】
上記吹出し口９と対向する位置に室外送風機１２が配置される。この室外送風機１２は、ファンモータ１２ｍと、このファンモータの回転軸に嵌着される、いわゆるプロペラ型のファン１２ｆからなる。上記吹出し口９に室外送風機１２を構成するプロペラファン１２ｆが直接対向していて、室外送風機１２を駆動すると、各側面板１ｂに設けられる外気吸込み口８から室外ユニット部３に外気を吸込み、室外送風機１２を介して背面板１ｃの吹出し口９から外部へ吹出す通風路が形成されるようになっている。
【００２５】
外気吸込み口８から室外送風機１２に至る送風路の中途部には室外熱交換器１３が配置される。この室外熱交換器１３は、上記室内熱交換器４と同様、両側の端板間に多数枚のフィンを互いに所定の間隙を存して並置し、これら端板とフィンに熱交換パイプを貫通させた、いわゆるフィンドチューブタイプの熱交換器である。
【００２６】
上記室外熱交換器１３は、平面視で略Ｌ字状に形成される第１の熱交換器部１３Ａと第２の熱交換器部１３Ｂとの組み合わせからなっている。互いの熱交換器部１３Ａ，１３Ｂは、互いの端部が近接した状態で配置され、室外熱交換器１３は平面視で略ロ字状に形成される。
【００２７】
第１の熱交換器部１３Ａと第２の熱交換器部１３Ｂの曲成部は互いに同一の曲率で曲成されるが、直状部は第１の熱交換器部１３Ａの方が第２の熱交換器部１３Ｂよりもある程度長尺に形成される。そして、第２の熱交換器部１３Ｂの両側の端板ｄは、直状部の直状方向に沿って突出していて、組立てられた状態で上記端板ｄ突出部が第１の熱交換器部１３Ａの側面に当接している。
【００２８】
このことにより、第１の熱交換器部１３Ａと第２の熱交換器部１３Ｂとの連結部における隙間が上記端板ｄによって塞がれている。すなわち、端板ｄが連結板となって室外熱交換器１３として全周に亘って一体化され、フィン相互の隙間以外に空気が流通する部分がない。
【００２９】
特に図示していないが、上記本体１底面板に形成される上記ドレンパン７は上記室外熱交換器１３の配置部分のみ一段と低くなっていて、ドレン水が多く溜り易くなっている。
【００３０】
そして、上記室外熱交換器１３の略中心位置に、掻き上げ部材（掻き上げ手段）１４が配置される。上記掻き上げ部材１４は、上記室外送風機１２のファンモータ１２ｍよりも小型のモータ１５と、このモータの回転軸に嵌着され周縁に図示しない掻き上げ板を備えたドレンスプラッシャー１６とからなる。
【００３１】
少なくとも、上記ドレンスプラッシャー１６の一部がドレンパン７に集溜するドレン水に浸漬するように設計されている。また、ドレンスプラッシャー１６を回転駆動するモーター１５は、ドレン水が降りかかっても電気事故の発生のない、完全防水構造が採用されている。
【００３２】
上記掻き上げ部材１４は室外熱交換器１３とともに室外送風機１２の吸込み側に位置し、かつ掻き上げ部材１４のモータ１５の軸方向は上記室外送風機１２の軸方向と平行になるように配置される。掻き上げ部材１４のドレンスプラッシャー１６は室外送風機１２のプロペラファン１２ｆと同様に、吹出し口９側になるよう位置が同一に揃えられる。
【００３３】
このようにして構成される空気調和機であり、冷房運転を指示することにより、室内送風機５が駆動されてエレベータＡ内の空気が室内吸込み口から本体１内に区画形成される室内ユニット部２に吸込まれる。そして、室内熱交換器４に導かれて熱交換をなし、冷気に変わって室内吹出し口から吹出される。エレベータＡ内に冷気が供給されて、エレベータ内の冷房をなす。
【００３４】
暖房運転を指示することにより、室内送風機５が駆動されてエレベータＡ内の空気が室内吸込み口から室内ユニット部２に吸込まれる。そして、室内熱交換器４に導かれて熱交換をなし、暖気に変わって室内吹出し口から吹出される。エレベータＡ内に暖気が供給されて、エレベータ内の暖房をなす。
【００３５】
冷暖房いずれの運転においても、室外ユニット部３においては室外送風機１２が駆動され、両側面板１ｂに設けられる外気吸込み口８から外気が室外ユニット部３に吸込まれ、室外熱交換器１３に導かれて熱交換をなし、背面板１ｃに設けられる吹出し口９から外部へ吹出される。
【００３６】
上記掻き上げ部材１４は、冷房運転時に作用する。すなわち、室内熱交換器４と熱交換した空気に含まれる水分が凝縮してドレン水に変り、ドレンパン７に流下し集溜する。このドレン水は室内ユニット部２から室外ユニット部３へ流れて、室外熱交換器１３および掻き上げ部材１４のドレンスプラッシャー１６周縁一部を浸漬する。
【００３７】
ドレンスプラッシャー１６は回転駆動され、ドレン水を掻き上げて水滴もしくは霧状に変え放射状に飛散させる。その一方で、室外送風機１２が駆動されて外気吸込み口８から室外熱交換器１３へ外気を導くので、水滴もしくは霧状のドレン水が外気に混合して室外熱交換器１３に降りかかる。
【００３８】
このとき、室外熱交換器１３は冷媒を凝縮して凝縮熱を放出しており、降りかかったドレン水は凝縮熱を吸収して蒸発する。したがって、ドレン水は早急に蒸発処理され、かつ室外熱交換器１３の熱交換効率が向上する。
【００３９】
しかも、室外熱交換器１３は掻き上げ部材１４の全周囲を囲むよう平面視で略ロ字状に形成されているので、ドレンスプラッシャー１６が掻き上げた全てのドレン水は前後左右を囲む第１、第２の熱交換器部１３Ａ，１３Ｂのいずれかに降り掛けられて付着し蒸発する。掻き上げられたドレン水が室外熱交換器１３外部に漏れ出るようなことがなく、ドレン水の蒸発処理をより確実に行える。
【００４０】
なお、上記室外熱交換器１３は、平面視で略Ｌ字状の第１の熱交換器部１３Ａと第２の熱交換器部１３Ｂを組合せて略ロ字状としたから、この室外熱交換器１３と同等能力であっても平板状構造とした室外熱交換器と比較して、省スペース化を図ることができコストの低減に寄与する。
【００４１】
なお、室外熱交換器１３を構成する第１の熱交換器部１３Ａと第２の熱交換器部１３Ｂとの組み合わせ部は、第２の熱交換器部１３Ｂを構成する端板ｄの片部を長く形成して第１の熱交換器部１３Ａの側面に当接させている。
【００４２】
このことにより、第２の熱交換器部１３Ｂの端板ｄ片部が第１の熱交換器部１３Ａと第２の熱交換器部１３Ｂとの連結部における隙間を塞ぐことになり、熱交換空気およびドレン水の漏れがなり、室外熱交換器１３の熱交換効率の向上と、ドレン水の蒸散効率の向上を得られる。
【００４３】
また、上記室外熱交換器１３を構成するフィンは、そのピッチを１．５ｍｍ以下に設定するとよい。ドレンスプラッシャー１６がドレン水を掻き上げて、ある程度の圧力をもって室外熱交換器１３に飛散させているが、上記隙間の設定によりドレン水が室内熱交換器１３を構成するフィン相互間を通過してしまい外部に漏れることを防止できる。
【００４４】
また、上記室外熱交換器１３を平面視で略ロ字状に形成したので、本体上面板を取外した状態で室外熱交換器１３上面が開放状態になっているが、室外熱交換器１３上端に板体を載設して上面を閉塞するようにしてもよい。
【００４５】
すなわち、本体１の上面板を取付ければ室外熱交換器１３の上面が閉成されるが、それぞれの部品の製作加工と組立て精度の点から、実際には室外熱交換器１３上端と上面板とである程度の隙間が形成されることはやむを得ない。したがって、ドレンスプラッシャー１６が掻き上げたドレン水の極く一部が上記隙間を介して直接室外熱交換器１３外部に飛散することは考えられる。
【００４６】
このような事態を未然に防止するための処置として、室外熱交換器１３上端に板体を載設し室外熱交換器の上面を閉塞すれば、上記板体がドレン水の飛散防止板として機能し、ドレン水が室外熱交換器１３外部へ飛散する余地がなくなり、より効率の良い処理がなされる。
【００４７】
また、上記圧縮機１０に接続される冷媒吐出側の冷媒管Ｐを室外熱交換器１３の風下側に配置すると、上記冷媒管Ｐに対する冷却効率が良くなる。すなわち、室内送風機５の作動により、特に風下側の室外熱交換器１３に多量のドレン水がかかり、熱交換効率が良くなるうえに、この風下側に圧縮機１０吐出部に接続される冷媒管Ｐが位置するので、冷媒管Ｐに対する冷却が効率よく行われる。
【００４８】
また、特に図示していないが、掻き上げ部材１４を構成するドレンスプラッシャー１６の回転軸が、室外熱交換器１３を構成するフィンに対して傾いて設置されている。このことにより、ドレンスプラッシャー１６が掻き上げたドレン水の飛散方向とフィンの面方向とがずれてドレン水が必ずフィンに衝突し、フィン相互間の隙間をすり抜けて外部へ漏れることを防止できる。
【００４９】
また、特に図示していないが、ドレンパン７に集溜されるドレン水の水位を測るフロートスイッチが設けられる。このフロートスイッチはドレン水が所定水位を越えた状態を検知すると、その検知信号を制御部へ送る。制御部はドレンポンプへ駆動信号を送って作動させ、ドレン水を外部へ流す。
【００５０】
ここでは、上記フロートスイッチを略ロ字状に形成される室外熱交換器１３の外部に配置する。すなわち、ドレンスプラッシャー１６の作動にともなってドレン水の水面が波打つが、フロートスイッチを室外熱交換器１３の外部に設置することにより、波による水位変動を受け難くなって正確な水位を計測できる。
【００５１】
なお、上述の空気調和機ＳをエレベータＡ内の空調用として備えたが、これに限定されるものではなく、被空調室の窓部に取付けられるいわゆるウインド型空気調和機として通常の室内空調用としてもよい。
【００５２】
【発明の効果】
以上説明したように本発明によれば、一体形でドレン水を室外熱交換器へ飛散させて蒸発処理する空気調和機であり、熱交換効率の向上と、ドレン水蒸発処理の効率向上化を得るなどの効果を奏する。
【図面の簡単な説明】
【図１】本発明の実施形態を示す、エレベータに取付けられた空気調和機の斜視図。
【図２】同実施形態を示す、空気調和機の内部の斜視図。
【図３】同実施形態を示す、空気調和機のさらに内部の斜視図。
【図４】同実施形態を示す、空気調和機の平面図。
【符号の説明】
２…室内ユニット部、３…室外ユニット部、１…空気調和機本体、４…室内熱交換器、５…室内送風機、１３…室外熱交換器、１２…室外送風機、７…ドレンパン（ドレン水案内手段）、１４…掻き上げ部材（掻き上げ手段）、１３Ａ…第１の熱交換器部、１３Ｂ…第２の熱交換器部、ｄ…端板（連結板）。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a treatment structure for drain water generated during cooling operation in a so-called integrated air conditioner in which an indoor heat exchanger and an outdoor heat exchanger are accommodated in a main body.
[0002]
[Prior art]
For example, an air conditioner that cools or heats the interior of an elevator is mounted on a gondola (hereinafter simply referred to as an elevator) that constitutes the elevator apparatus. As this air conditioner, a so-called integrated type using a refrigeration cycle and having an indoor heat exchanger and an outdoor heat exchanger in the main body is used.
[0003]
During the cooling operation, the dew point of the air that is heat-exchanged by the indoor heat exchanger is lowered, moisture is condensed, and it is dripped as drain water. A drain pan is disposed at the lower part of the indoor heat exchanger, and all drain water is collected.
[0004]
In this type of air conditioner, the drain water received by the drain pan is guided to the outdoor heat exchanger side, and is scraped up by, for example, slinger ring, which is a scooping means disposed opposite to the outdoor heat exchanger. By spreading the drain water on the outdoor heat exchanger, the heat exchange efficiency of the outdoor heat exchanger is improved, and the drain water is smoothly evaporated.
[0005]
[Patent Document 1] discloses a technique in which, in addition to the basic configuration described above, a plurality of the above-described scraping means are provided and the outside air sucked from the outside air suction port is mixed into the drained water that has been scraped. In addition to reducing the noise of wind noise, the drain water transpiration efficiency is improved and the heat exchange performance of the outdoor heat exchanger is improved.
[0006]
[Patent Document 1]
JP-A-2001-324171 [0007]
[Problems to be solved by the invention]
By the way, the outdoor heat exchanger is formed in a straight shape in a plan view or in an L shape as described in [Patent Document 1], and the slinger ring is disposed so as to be opposed to the outdoor heat exchanger, Raise the drain water. The drained water that has been scraped is atomized and sprayed onto the outdoor heat exchanger and adheres to the outdoor heat exchanger.
[0008]
However, in actuality, the slinger ring is attached to a blade body that is rotationally driven. Therefore, as the slinger ring rotates, drain water is scattered radially from the slinger ring in an oblique circumferential direction. For this reason, the drain water swollen up by the slinger ring is not always sprayed to the outdoor heat exchanger, and a part of the drain water is not attached to the outdoor heat exchanger and is easily scattered outside.
[0009]
The main body of the air conditioner is a housing formed by simply combining plate bodies manufactured by sheet metal processing, and does not have a watertight structure. Therefore, there is a possibility that drain water droplets scattered without adhering to the outdoor heat exchanger will adhere to the wall surface of the main body and flow down and eventually leak out of the main body. Although the occurrence of such an accident can be prevented by making the housing a completely watertight structure, the cost is adversely affected.
[0010]
The present invention has been made in consideration of the above-mentioned circumstances, and the object of the present invention is an integrated type in which an indoor heat exchanger and an outdoor heat exchanger are arranged in the main body. Assuming that the generated drain water is scattered to the outdoor heat exchanger and evaporated, the drain water is surely scattered only to the outdoor heat exchanger and the drain water is evaporated. It is an object of the present invention to provide an air conditioner that can improve the efficiency of the outdoor heat exchanger and improve the heat exchange efficiency of the outdoor heat exchanger.
[0011]
[Means for Solving the Problems]
The air conditioner of the present invention is made to satisfy the above-mentioned object, and the air conditioner main body, which is a housing, is divided into an indoor unit part and an outdoor unit part, and is divided into two left and right rooms. An indoor heat exchanger and an indoor blower are arranged in the unit, and an outdoor air intake port is provided on the left and right side plates of the air conditioner main body constituting the outdoor unit unit, and a blower port is provided on the back plate, and one side on the back side of the outdoor unit unit A compressor is installed in the unit, an outdoor blower is placed on the other side of the rear side of the outdoor unit side by side with the compressor, facing the blowout port, and an air passage that is adjacent to the outdoor blower and extends from the outside air inlet to the outdoor blower An outdoor heat exchanger is disposed in the middle, and drain water guide means for guiding drain water generated by the indoor heat exchanger from the indoor unit part to the outdoor unit part to the lower part of the outdoor heat exchanger is provided. By guidance means Comprises means scooping evaporating in off hooking the outdoor heat exchanger to the outdoor heat exchanger is raised off the drain water is guided to the lower external heat exchanger,
The outdoor heat exchanger includes a first heat exchanger section and a second heat exchanger section that are formed in a substantially L shape in plan view, and the first heat exchanger section and the second heat exchanger section. In addition to connecting the end portions of the vessel, a connecting plate that closes the gap along the connecting portion is provided to form a substantially square shape in plan view, and a scraping means is disposed at the substantially central portion of the outdoor heat exchanger. Thus, it is formed so as to surround the front, rear, left and right peripheries of the scraping means.
[0012]
By adopting such a configuration, the drain water generated in the indoor heat exchanger can be surely scattered only to the outdoor heat exchanger, and almost complete evaporation can be performed. Exchange efficiency is improved.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of a gondola (hereinafter simply referred to as an elevator) A constituting an elevator apparatus and an air conditioner S mounted on a ceiling portion a of the elevator.
[0014]
The elevator A is provided with an opening / closing door b on the front side which is the front side of the figure, and allows passengers to enter and exit. The wire c is connected to a ceiling part different from the air conditioner S, and the elevator A is suspended by the wire c.
[0015]
A winder is disposed in the upper portion, and a wire a for suspending the elevator A is wound around one end. A weight that moves along the guide rail is attached to the other end of the wire a, and is lifted and lowered in balance with the elevator A. (The above is not shown)
The air conditioner S is configured as shown in FIGS. 2 is a perspective view showing the interior of the air conditioner body with the top plate removed, FIG. 3 is a perspective view showing the interior of the air conditioner body with a part of the side plate removed, and FIG. 4 is a top view of the air conditioner body. It is a top view which removes and shows an inside.
[0016]
The air conditioner main body 1 is composed of a rectangular housing in front view, side view, and plan view. From the substantially central portion of the main body 1 in the longitudinal direction, the left side of the figure is closed except for a part of the upper surface, and the upper side is opened on the right side of the figure. The part where the upper surface is blocked is called an indoor unit part 2, and the opened part is called an outdoor unit part 3. The unit units 2 and 3 are defined in the main body 1.
[0017]
First, the indoor unit 2 will be described in detail.
An indoor suction port is provided on the bottom plate of the main body 1, and an indoor outlet (not shown) is provided on the side plate. An opening of the same shape is provided in the ceiling part a of the elevator A facing the indoor air inlet and the indoor outlet, and the indoor unit 2 and the interior of the elevator A are in communication with each other directly or through a duct. .
[0018]
An indoor heat exchanger 4 is disposed between the indoor suction port and the indoor outlet. This indoor heat exchanger 4 is a so-called fin tube type in which a large number of fins are juxtaposed between end plates on both sides with a predetermined gap therebetween, and a heat exchange pipe is passed through these end plates and fins. .
[0019]
In the indoor unit 2, only the upper surface of the indoor heat exchanger 4 is open and exposed. With the main body upper plate attached, the upper plate is almost in close contact with the upper surface of the indoor heat exchanger 4. Is not present.
[0020]
A fan 5a is provided opposite to the indoor heat exchanger 4, and an indoor blower 5 including a fan motor 5b that rotationally drives the fan 5a is disposed. The fan 5a is called a so-called sirocco fan, and is driven to rotate to suck air from the rotation axis direction and blow it out from the circumferential direction. A duct 6 is attached to the blowing side of the sirocco fan 5a, and an end of the duct 6 extends to and is connected to the indoor blowing port.
[0021]
The bottom surface of the indoor unit 2 is formed as a drain pan (drain water guiding means) 7 that receives drain water generated by the indoor heat exchanger 4. The drain pan 7 corresponds not only to the indoor unit portion 2 but also to the entire bottom plate of the main body 1 extending from the indoor unit portion 2 to the outdoor unit portion 3.
[0022]
Next, the outdoor unit 3 will be described.
Outside air suction ports 8 are provided on both side plates 1b of the air conditioner main body 1, respectively. The rear plate 1c of the main body 1 is provided with a blowout port 9 covered with a fan guard. When the elevator A shown in FIG. 1 is taken as a reference, there is a back plate 1c on the same surface of the air conditioner main body 1 as the surface on which the opening / closing door b is provided, and the outlet 9 is opened here. In addition, the arrangement | positioning direction of the main body with respect to the elevator A is not limited to FIG. 1, It can change suitably according to the design situation of an elevator.
[0023]
A compressor 10 is disposed at a corner of the outdoor unit 3, and the periphery thereof is surrounded by an auxiliary partition plate 11. By providing the auxiliary partition plate 11, the thermal influence from the compressor 10 to the indoor suction port and the indoor heat exchanger 4 is more reliably prevented, and noise leakage is prevented.
[0024]
An outdoor fan 12 is disposed at a position facing the outlet 9. The outdoor blower 12 includes a fan motor 12m and a so-called propeller type fan 12f that is fitted to a rotation shaft of the fan motor. When the propeller fan 12f constituting the outdoor blower 12 is directly opposed to the outlet 9 and the outdoor blower 12 is driven, outside air is sucked into the outdoor unit portion 3 from the outdoor air inlet 8 provided in each side plate 1b. The ventilation path which blows off from the blower outlet 9 of the backplate 1c through the air blower 12 is formed.
[0025]
An outdoor heat exchanger 13 is disposed in the middle of the air passage from the outside air inlet 8 to the outdoor fan 12. In the outdoor heat exchanger 13, as in the indoor heat exchanger 4, a large number of fins are juxtaposed between end plates on both sides with a predetermined gap therebetween, and a heat exchange pipe is passed through the end plates and fins. This is a so-called finned tube type heat exchanger.
[0026]
The outdoor heat exchanger 13 is composed of a combination of a first heat exchanger portion 13A and a second heat exchanger portion 13B that are formed in a substantially L shape in plan view. The mutual heat exchanger portions 13A and 13B are arranged in a state where their end portions are close to each other, and the outdoor heat exchanger 13 is formed in a substantially square shape in a plan view.
[0027]
The bent parts of the first heat exchanger part 13A and the second heat exchanger part 13B are bent with the same curvature, but the straight part is second in the first heat exchanger part 13A. It is formed to be somewhat longer than the heat exchanger section 13B. Then, the end plates d on both sides of the second heat exchanger section 13B protrude along the straight direction of the straight section, and the end plate d protruding section in the assembled state is the first heat exchanger. It is in contact with the side surface of the portion 13A.
[0028]
Thus, the gap at the connecting portion between the first heat exchanger portion 13A and the second heat exchanger section 13B is that has been closed by the end plate d. That is, the end plate d becomes a connecting plate and is integrated over the entire circumference as the outdoor heat exchanger 13, and there is no portion through which air flows except for the gap between the fins.
[0029]
Although not particularly illustrated, the drain pan 7 formed on the bottom plate of the main body 1 is lower only in the arrangement portion of the outdoor heat exchanger 13, and a lot of drain water is easily collected.
[0030]
A scraping member (scraping means) 14 is disposed at a substantially central position of the outdoor heat exchanger 13. The scraping member 14 includes a motor 15 that is smaller than the fan motor 12m of the outdoor blower 12 and a drain pressurer 16 that is fitted to the rotating shaft of the motor and includes a scraping plate (not shown) on the periphery.
[0031]
At least a part of the drain pressurer 16 is designed to be immersed in the drain water collected in the drain pan 7. In addition, the motor 15 that rotationally drives the drain splasher 16 has a completely waterproof structure that does not cause an electrical accident even when drain water falls.
[0032]
The scraping member 14 is positioned on the suction side of the outdoor fan 12 together with the outdoor heat exchanger 13, and the axial direction of the motor 15 of the scraping member 14 is arranged to be parallel to the axial direction of the outdoor fan 12. . As with the propeller fan 12f of the outdoor blower 12, the drain plush 16 of the scraping member 14 is arranged at the same position so as to be on the outlet 9 side.
[0033]
The air conditioner configured as described above, and by instructing a cooling operation, the indoor blower 5 is driven, and the air in the elevator A is partitioned into the main body 1 from the indoor suction port. Sucked into. And it is guide | induced to the indoor heat exchanger 4, heat exchange is performed, it changes into cold air, and it blows off from an indoor blowing outlet. Cold air is supplied into the elevator A to cool the elevator.
[0034]
By instructing the heating operation, the indoor blower 5 is driven and the air in the elevator A is sucked into the indoor unit portion 2 from the indoor suction port. And it is guide | induced to the indoor heat exchanger 4, heat exchange is performed, it changes into warm air, and it blows off from an indoor blowing outlet. Warm air is supplied into the elevator A to heat the elevator.
[0035]
In both the cooling and heating operations, the outdoor blower 12 is driven in the outdoor unit section 3, and the outside air is sucked into the outdoor unit section 3 from the outside air inlet 8 provided in the both side plates 1 b and led to the outdoor heat exchanger 13. Heat exchange is performed, and the air is blown out from the blowout port 9 provided in the back plate 1c.
[0036]
The scraping member 14 acts during cooling operation. That is, moisture contained in the air heat-exchanged with the indoor heat exchanger 4 is condensed and converted into drain water, and flows down to the drain pan 7 and collected. This drain water flows from the indoor unit part 2 to the outdoor unit part 3 and immerses a part of the periphery of the drain heather 16 of the outdoor heat exchanger 13 and the scraping member 14.
[0037]
The drain pusher 16 is driven to rotate, scoops up the drain water, changes it into water droplets or mist, and scatters it radially. On the other hand, the outdoor blower 12 is driven to guide the outside air from the outside air inlet 8 to the outside heat exchanger 13, so that water droplets or mist-like drain water is mixed with the outside air and falls on the outside heat exchanger 13.
[0038]
At this time, the outdoor heat exchanger 13 condenses the refrigerant and releases the condensation heat, and the drained water that has fallen absorbs the condensation heat and evaporates. Therefore, the drain water is immediately evaporated and the heat exchange efficiency of the outdoor heat exchanger 13 is improved.
[0039]
Moreover, since the outdoor heat exchanger 13 is formed in a substantially rectangular shape in plan view so as to surround the entire periphery of the scraping member 14, all the drain water scraped up by the drain plusr 16 surrounds the front, rear, left and right. Then, it falls on one of the second heat exchanger parts 13A and 13B, adheres and evaporates. The drained water is not leaked to the outside of the outdoor heat exchanger 13, and the drain water can be evaporated more reliably.
[0040]
The outdoor heat exchanger 13 is formed in a substantially square shape by combining the first heat exchanger portion 13A and the second heat exchanger portion 13B which are substantially L-shaped in plan view. Even if it has the same capacity as the vessel 13, it can save space compared to the outdoor heat exchanger having a flat plate structure, which contributes to cost reduction.
[0041]
In addition, the combination part of 13 A of 1st heat exchanger parts which comprise the outdoor heat exchanger 13, and the 2nd heat exchanger part 13B is the one part of the end plate d which comprises the 2nd heat exchanger part 13B. Is formed so as to be in contact with the side surface of the first heat exchanger section 13A.
[0042]
As a result, the end plate d piece of the second heat exchanger section 13B closes the gap at the connecting section between the first heat exchanger section 13A and the second heat exchanger section 13B, and heat exchange is performed. Leakage of air and drain water occurs, and an improvement in heat exchange efficiency of the outdoor heat exchanger 13 and an improvement in drainage transpiration efficiency can be obtained.
[0043]
Moreover, the fins constituting the outdoor heat exchanger 13 may be set to have a pitch of 1.5 mm or less. The drain splasher 16 scoops up the drain water and scatters it to the outdoor heat exchanger 13 with a certain pressure. However, the drain water passes between the fins constituting the indoor heat exchanger 13 by setting the gap. It can prevent leaking outside.
[0044]
Further, since the outdoor heat exchanger 13 is formed in a substantially square shape in plan view, the upper surface of the outdoor heat exchanger 13 is open with the main body upper plate removed, but the upper end of the outdoor heat exchanger 13 is A plate body may be mounted on the upper surface to close the upper surface.
[0045]
That is, if the upper surface plate of the main body 1 is attached, the upper surface of the outdoor heat exchanger 13 is closed, but actually, the upper end of the outdoor heat exchanger 13 and the upper surface plate are used from the viewpoint of manufacturing and assembling accuracy of each part. It is inevitable that a certain amount of gap is formed. Therefore, it is conceivable that a very small part of the drain water that has been swung up by the drain pressurer 16 scatters directly outside the outdoor heat exchanger 13 through the gap.
[0046]
As a measure for preventing such a situation, if the plate is placed on the upper end of the outdoor heat exchanger 13 and the upper surface of the outdoor heat exchanger is closed, the plate functions as a drain water splash prevention plate. In addition, there is no room for the drain water to be scattered outside the outdoor heat exchanger 13, and more efficient processing is performed.
[0047]
Further, if the refrigerant pipe P on the refrigerant discharge side connected to the compressor 10 is arranged on the leeward side of the outdoor heat exchanger 13, the cooling efficiency for the refrigerant pipe P is improved. That is, a large amount of drain water is applied to the outdoor heat exchanger 13 on the leeward side by the operation of the indoor blower 5 to improve heat exchange efficiency, and the refrigerant pipe connected to the discharge portion of the compressor 10 on the leeward side. Since P is located, the refrigerant pipe P is efficiently cooled.
[0048]
Although not particularly illustrated, the rotation shaft of the drain pressurer 16 constituting the scraping member 14 is installed to be inclined with respect to the fin constituting the outdoor heat exchanger 13. As a result, it is possible to prevent the drain water scattering direction and the fin surface direction, which are swept up by the drain plusr 16 from deviating from each other, so that the drain water always collides with the fins and slips through the gaps between the fins and leaks outside.
[0049]
Although not particularly shown, a float switch for measuring the water level of the drain water collected in the drain pan 7 is provided. When this float switch detects that the drain water has exceeded a predetermined water level, it sends a detection signal to the control unit. A control part sends a drive signal to a drain pump, makes it act | operate, and lets drain water flow outside.
[0050]
Here, the float switch is disposed outside the outdoor heat exchanger 13 formed in a substantially square shape. That is, the water surface of the drain water undulates with the operation of the drain splasher 16, but by installing the float switch outside the outdoor heat exchanger 13, it is difficult to receive fluctuations in the water level due to the waves, and an accurate water level can be measured.
[0051]
In addition, although the above-mentioned air conditioner S was provided for air conditioning in the elevator A, the present invention is not limited to this, and as a so-called window type air conditioner attached to a window portion of an air-conditioned room, It is good.
[0052]
【The invention's effect】
As described above, according to the present invention, it is an air conditioner that integrally evaporates drain water to an outdoor heat exchanger, and evaporates and improves heat exchange efficiency and drain water evaporating efficiency. There are effects such as obtaining.
[Brief description of the drawings]
FIG. 1 is a perspective view of an air conditioner attached to an elevator according to an embodiment of the present invention.
FIG. 2 is a perspective view of the inside of the air conditioner showing the embodiment.
FIG. 3 is a perspective view of the interior of the air conditioner showing the embodiment.
FIG. 4 is a plan view of the air conditioner showing the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 2 ... Indoor unit part, 3 ... Outdoor unit part, 1 ... Air conditioner main body, 4 ... Indoor heat exchanger, 5 ... Indoor fan, 13 ... Outdoor heat exchanger, 12 ... Outdoor fan, 7 ... Drain pan (drain water guide Means), 14 ... scraping member (scraping means), 13A ... first heat exchanger part, 13B ... second heat exchanger part, d ... end plate (connecting plate).

Claims

Inside, an air conditioner main body composed of a housing having an indoor unit section and an outdoor unit section that are partitioned into two left and right chambers ,
An indoor heat exchanger and an indoor fan arranged in the indoor unit section ,
An outdoor air inlet provided in the left and right side plates of the air conditioner body constituting the outdoor unit, and a blowout port provided in the back plate;
A compressor disposed on one side of the back side of the outdoor unit, and
An outdoor blower arranged opposite to the outlet on the other side of the back side of the outdoor unit part aligned with the compressor;
An outdoor heat exchanger that is adjacent to the outdoor blower and disposed in the middle of the air passage from the outside air inlet to the outdoor blower,
Drain water guide means provided from the indoor unit part to the outdoor unit part, and leading drain water generated by the indoor heat exchanger to the lower part of the outdoor heat exchanger;
Has a drain splasher that raised off the drain water is guided to the lower the outdoor heat exchanger by the drain water guide means, over down the drain water to the outdoor heat exchanger, and means scooped evaporating in the outdoor heat exchanger Comprising
The outdoor heat exchanger includes a first heat exchanger portion and a second heat exchanger portion that are formed in a substantially L shape in plan view, and the first heat exchanger portion and the second heat exchanger portion. While connecting the end parts of the exchanger part, a connecting plate that closes the gap along this connecting part is provided, and it has a substantially rectangular shape in plan view,
An air conditioner characterized in that the scraping means is disposed substantially at the center of the outdoor heat exchanger so as to surround the entire front, back, left, and right of the scraping means.