JP3820801B2

JP3820801B2 - Indoor unit of ceiling cassette type air conditioner

Info

Publication number: JP3820801B2
Application number: JP17514299A
Authority: JP
Inventors: 素広大石; 善之中川
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 1999-06-22
Filing date: 1999-06-22
Publication date: 2006-09-13
Anticipated expiration: 2019-06-22
Also published as: JP2001004199A

Description

【０００１】
【発明の属する技術分野】
この発明は、天井カセット形エアコンの室内機に係わり、特に据付性の向上を図るものである。
【０００２】
【従来の技術】
天井にあけた穴を介して天井室内に埋め込まれ吊られた天井カセット形エアコンの室内機は、例えば図９及び図１０、図１１の実開昭５９−６７７１７公報に示されるものがある。
図に於いて、１は天井カセット形エアコンの室内機であり、４はその外郭部材である。室内機１の内部には室内側熱交換器２が設けてあると共に室内ファン３（図示せず）が備えられる。５は熱交換器２の下部に設けたドレンパンである。
【０００３】
この室内機１は、吊りボルト８により建物構造物に吊り下げられる。７は遮蔽板であり対向する２個の熱交換器２を一体化してある。この熱交換器２、２の両端部に設けた遮蔽板７、７の一方の遮蔽板７にはその中間部には冷媒配管継ぎ手１０の突出寸法に合わせ、凹部９を形成させ、この凹部９に冷媒配管継ぎ手１０をねじ１１を介して固定させてある。凹部９の上方には外郭部材４から屋根形状１７が形成されている。またドレンパン５も遮蔽板７の凹部９に沿ってくぼみ部１２を形成してある。１５は遮蔽板７の下端とドレンパン５との間に介在させたゴム等から成るシール部材で、このシール部材１５には冷媒配管継ぎ手１０の下方部分にドレン受け部材１６を設けてある。
【０００４】
【発明が解決しようとする課題】
従来の天井カセット形エアコンの室内機は以上のように構成されているので、以下に説明する解決すべき問題点があった。
第１に、冷媒配管継ぎ手１０を固定する遮蔽板７は、冷房運転時冷媒の熱影響をまともに受けこの遮蔽板７に接触固定されているドレン受け部材１６も同様に冷やされ結露し易く、さらにドレンパン５のそこ部まで到達していることから、流れ落ち溜まったドレン水の熱影響までうける悪い部品構成であった。
第２に、冷媒配管継ぎ手１０を固定する遮蔽板７は室内機１の外郭部材４に接触固定されており、前記冷房時の熱影響が遮蔽板７を伝導し外郭部材４に至る。外郭部材４下部にはドレンパン５は配置されておらず露たれを余儀なくされる。
【０００５】
第３に、屋根形状１７とドレン受け部材１６から成る延長配管２１の接続スペースは、接続後も開放状態であり天井室内の埃がドレン受け部材１６に堆積し露の流れを堰き止め室内機１外へ露たれを起こす。
第４に、冷媒配管継ぎ手１０に接続される延長配管の断熱材とドレン受け部材１６との位置関係が定まらず作業バラツキにより断熱材がドレン受け部材１６の投影面内から外れる場合もあり、又、正規位置に断熱材を配置したとしても断熱材を固定する手段がないため、経年変化による断熱材の収縮によりドレン受け部材１６より外れ露たれに至る。
第５に、吊りボルト８位置が冷媒配管継ぎ手１０と別の室内機１外面あるため、各々の作業スペースが必要となる。
【０００６】
この発明は上記のような課題を解決するためになされたもので、露たれの影響を防止しながら延長配管の据付性が向上する天井カセット形エアコンの室内機を得ることを目的とする。
【０００７】
【課題を解決するための手段】
この発明に係わる天井カセット形エアコンの室内機は、天井室内に設置され、室内機本体外郭部材の内部にケーシング、室内ファン、室内側熱交換器及びドレンパンを備えた天井カセット形エアコンの室内機において、前記室内側熱交換器の片端側には冷媒配管継ぎ手を固持する継ぎ手固定部材を配置し、前記継ぎ手固定部材は下部を宙吊り状態にして前記室内機本体外郭部材に接触することなく前記ケーシングに固定したものである。
【０００８】
また、天井室内に設置され、室内機本体外郭部材の内部にケーシング、室内ファン、室内側熱交換器及びドレンパンを備えた天井カセット形エアコンの室内機において、前記室内側熱交換器の片端側には冷媒配管継ぎ手を固定する継ぎ手固定部材を配置し、これら冷媒配管継ぎ手及び継ぎ手固定部材の下方には下部を宙吊り状態にしてドレン受け部材を配置するとともに該下部の先端は前記ドレンパンに重なり代を持ち、前記ドレン受け部材を固定するドレン受け固定部材を前記ドレン受け部材上方を完全に覆うよう該ドレン受け部材の即上に設けたものである。
【０００９】
また、前記冷媒配管継ぎ手に接続される延長配管を覆う断熱材を固定するための断熱材固定バンドを設け、前記断熱材固定バンドを前記ドレン受け部材の上方に設けたものである。
【００１２】
また、前記ドレン受け固定部材に前記断熱材固定バンドを設けたものである。
【００１３】
また、前記ドレン受け固定部材に延長配管の断熱材の配置位置を表示したものである。
【００１４】
また、前記ドレン受け固定部材に延長配管の断熱材を固定するための断熱材固定バンドを設け、この断熱材固定バンドまで前記ドレン受け部材を延設したものである。
【００１５】
また、前記ドレン受け部材のドレンを受ける底面をドレンパン側が低くなるよう傾斜させたものである。
【００１６】
また、前記ドレン受け部材端部に前記冷媒配管継ぎ手と接続される延長配管を収納する切り欠きを形成したものである。
【００１７】
また、前記延長配管の断熱材の径が変わった場合に対応するよう前記ドレン受け部材の切り欠きにスリットを設けたものである。
【００１８】
また、前記ドレン受け部材のある面に室内機の吊りボルトを配置したものである。
【００１９】
また、前記ドレン受け固定部材のある面に室内機の吊りボルトを配置したものである。
【００２０】
また、前記ケーシングは前記継ぎ手固定部材との固定部位に突座面を設けたものである。
【００２１】
また、前記ケーシングは前記継ぎ手固定部材との固定部位直上部が室内機本体外郭部材に接触しないよう構成したものである。
【００２２】
また、前記継ぎ手固定部材は継ぎ手の直上以外で前記ケーシングにねじ止め固定されるものである。
【００２３】
【発明の実施の形態】
実施の形態１．
以下、この発明の天井カセット形エアコンの室内機の具体的な実施の形態の一例について、図面を参照して詳細に説明する。
図１は、本発明の実施の形態１における室内機の天井室内に埋め込まれ吊られた状態を示す斜視図である。
図２は、図１の分解斜視図である。図３は、図１に示すＺ−Ｚ断面である。前記、従来の技術との相当部分は同一番号をふり説明は省略する。
【００２４】
図１、２、３に示すように、天井カセット形エアコンの室内機１の内部には、Ｖ字型の熱交換器２が所定の間隔を保ち対向して２個配置され、その片端側に冷媒配管継ぎ手１０を固持する継ぎ手固定部材１８を設け、この継ぎ手固定部材１８は室内機外郭部材４に接触することなく継ぎ手固定部材１８の下部を宙吊りの状態で、室内機１本体内の風路を形成するケーシング１９の片端にねじ止め部２９を介しねじ止めされる。
【００２５】
すなわち、冷媒配管継ぎ手１０を固定せしめた継ぎ手固定部材１８はケーシング１９との接触のみで、その他継ぎ手固定部材１８を取り巻く部品との接触は無い。ケーシング１９はもともと熱交換器２等が固定される部材であり、熱交換器２においても露付きが発生することから、結露部材の固定に適したケーシング１９に継ぎ手固定部材１８を固定することで、構成の複雑化などを防止できる。
熱交換器２，２も同様に熱交換機２の下部を宙吊り状態とした状態で上部をケーシング１９に固定される。
【００２６】
前記、冷媒配管継ぎ手１０と継ぎ手固定部材１８の下部には、冷媒配管継ぎ手１０と継ぎ手固定部材１８及び、延長配管２１の断熱材２２の覆われていない露出部分から流れ落ちる露を受ける為の、ドレン受け部材１６が下部を宙吊り状態とした状態で配置され、その先端はドレンパン５に重なり代を持つように配置される。ドレン受け部材１６のドレンを受ける内側部にはドレン水の熱伝導をドレン受け部材１６に伝えないために断熱材３０が設けられ、さらにドレンパン５側に低くなるよう傾斜２５が形成されている。
ドレン受け部材１６の上部には、固定バンド２３が配置され、ドレン受け部材１６の端面には延長配管を収納するＵ字状の切り欠き２６が形成されており、上端は後述する鈍連受け固定部材２０にネジ止め固定される係合部となっている。
【００２７】
２０はドレン受け部材１６の上部を完全に覆い、室内機１から突出して配置されたドレン受け固定部材である。このドレン受け固定部材２０には、延長配管２１の断熱材２２を固定するための断熱材固定バンド２３が固定される。
室内機１は吊りボルト８により建物構造物に吊り下げられるが、ドレン受け部材１６及びドレン受け固定部材２０と同一の室内機１側面に吊りボルト８が配置され、作業スペースの共有化を図っている。
熱交換器２、ドレン受け部材１６、継ぎ手固定部材１８、固定バンド２３は、決められた一方向（本実施の形態では下方から上方）からのねじ固定で止められており、リサイクルする際の分解性に優れており、リサイクル性が向上する。
【００２８】
上記のように構成された室内機においては、冷媒配管継ぎ手１０が継ぎ手固定部材１８に固持されているため、冷媒配管継ぎ手１０と延長配管２１の接続作業を従来のダブルスパナ作業からシングルスパナ作業とすることが可能になる。継ぎ手固定部材１８は熱交換器２が固定されるケーシング１９にネジ止め固定され、室内機外郭部材４には接触しないので、継ぎ手固定部材１８からの熱伝導によって室内機外郭部材４が冷却されて結露することを防止できる。
【００２９】
また、ケーシング１９はもともと熱交換器２を固定するものであるから、下方にドレンパン５が設置され、ドレンの回収が可能な構造となっている。従って、継ぎ手固定部材１８をケーシング１９に固定することによるケーシング１９の特別なドレン回収構成を必要としない。
【００３０】
しかも冷媒配管継ぎ手１０及び継ぎ手固定部材１８から滴下するドレンは、ドレン受け部材１６にて確実に捕獲できるので、冷媒配管継ぎ手１０と延長配管２１との接続部を断熱材で覆う作業を不要にできる。ドレン受け部材１６は下部を宙吊り状態にし、その先端がドレンパン５の上方に重なり代を有しているので、ドレン受け部材１６に滴下したドレンはドレン受け部材１６の傾斜を伝ってドレンパン５へと回収される。その際、ドレン受け１６は宙吊り状態なので、ドレンパン５に溜まった冷たいドレンによってドレン受け部材１６が冷やされることを防止し、ドレン受け部材１６自体の結露を防ぐことができる。
【００３１】
また、このドレン受け部材１６はドレン受け固定部材２０にネジ止め固定され、室内機外郭部材４には接触しないので、ドレン受け部材１６からの熱伝導によって室内機外郭部材４が冷却されて結露することを防止できる。ドレン受け固定部材２０は断熱性に優れているか或いは伝熱性の低い材質で形成され、室内機外郭部材４に固定されている。
【００３２】
また、ドレン受け部材１６、ドレン受け固定部材２０共延長配管２１に断熱材２２を固定する固定バンド２３までをも覆う突出長であり、特にドレン受け固定部材２０に固定バンド２３が固定されていることから、経年変化によっても確実に断熱材部分までを覆うことができる。また、固定バンド２３からの熱伝導が室内機外郭部材４に及ぶのを防止できる。ドレン受け固定部材２０の突出寸法はドレン受け部材１６の突出寸法に略等しい。また、ドレン受け部材１６はドレン受け固定部材２０に固定された状態で、Ｕ字状の切り欠き部２６を除いて延長配管２２を覆うので、ドレン受け部材１６にほこり等が堆積するのを防止できる。
【００３３】
実施の形態２．
以下、この天井カセット形エアコンの具体的な実施の形態の他の例について、図面を参照して説明する。
図４は、実施の形態２におけるドレン受け固定部材２０を示す斜視図であり、本実施の形態はドレン受け固定部材２０に延長配管２１の断熱材２２の配置位置を示す表示２４を設けたものである。その他の構成は実施の形態１と同様であり、その説明を省略する。
【００３４】
次に動作について説明する。延長配管２１を冷媒配管継ぎ手１０に接続する作業においては、先ず延長配管２１を冷媒配管継ぎ手１０に接続固定する。継ぎ手固定部材１８はケーシング１９に固定されているので、接続作業はシングルスパナで行なえる。延長配管２１には接続前でも後でも良いが断熱材２２が巻き付けられ、巻き付けられた断熱材２１は断熱材固定バンド２３（図４ではまだ取り付けられていないが、図２のようにドレン受け固定部材２０に取り付け固定されている）によって保持される。
【００３５】
断熱材２１を断熱材固定バンド２３に固定するに当たっては、ドレン受け固定部材２０の表示２４に従って、断熱材２１の端面を表示２４の線の位置に合せる。このようにして取付け固定した結果、断熱材は確実にドレン受け部材１６上に位置するので、断熱材２１が途絶える延長配管２１と冷媒配管継ぎ手１０との接続部付近で発生するドレンは確実にドレン受け部材１６に滴下し、ドレンパン５へと回収されていく。
【００３６】
実施の形態３．
以下、この天井カセット形エアコンの具体的な実施の形態の他の例について、図面を参照して説明する。
図５は、実施の形態３におけるドレン受け部材１６を示す正面図であり、本実施の形態はドレン受け部材１６の端部には延長配管２１の断熱材２２にあたる部位にＵ字形の切り欠き２６を設けたもので、そのＵ字形切り欠き２６の外周には延長配管２１の断熱材２２の径が変わった場合に対応できるようにＵ字形のスリット２７が形成される。その他の構成は実施の形態１と同様であり、説明を省略する。
【００３７】
延長配管の接続工事を行なう際、通常はドレン受け部材１６のスリット２７はそのままにして断熱材２２で覆われた延長配管２１がＵ字状の切り欠き２６へ収納される。この状態ではＵ字状の切り欠き２６と断熱材２２との隙間が小さいか殆どないので、ドレン受け固定部材２０の蓋としての機能とによりドレン受け部材１６内へのほこりの進入を防止できる。
【００３８】
また、断熱材２２の厚みが厚くそのままではＵ字状の切り欠き２６へ収まらない場合には、スリット２７から切り欠き２６側の部分を取り外し切り欠き２６を大きくすることで簡単に対応できる。ドレン受け部材１６は室内機１とは別体の構成部品なので、空調能力の異なる室内機１に対して共通的に使用することで量産効果によるコスト低減が期待できる。ドレン受け部材１６にこのようなスリット２７を形成しておけば、延長配管の配管径が異なるエアコンに対してもドレン受け部材１６を共通化できる範囲が広がる。
【００３９】
実施の形態４．
以下、この天井カセット形エアコンの具体的な実施の形態の他の例について、図面を参照して説明する。
図６は、実施の形態４におけるケーシング１９と継ぎ手固定部材１８の固定部の拡大斜視図であり、本実施の形態は、継ぎ手固定部材１８のねじ止め部２９の裏側のみケーシング１９から突座面２８を設け継ぎ手固定部材１８とケーシング１９との接触範囲を最小限にしたものである。その他の構成は実施の形態１と同様であり、その説明を省略する。
【００４０】
継ぎ手固定部材１８をケーシング１９に固定するには、継ぎ手固定部材１８上部の折曲部に穿設されたネジ穴とケーシング１９の下面に形成された突座面２８とを合わせ、下方からネジを挿入して螺合する。この結果継ぎ手固定部材１８とケーシング１９との接点は突座面２８部分のみとなり、接触面積が小さいので、継ぎ手固定部材１８とケーシングとの間の熱伝導の影響を小さくできる。この結果熱伝導による結露の発生を抑えることができる。
【００４１】
実施の形態５．
以下、この天井カセット形エアコンの具体的な実施の形態の他の例について、図面を参照して説明する。
図７は、実施の形態５における図１のＺ−Ｚ断面の他の実施の形態であり、ケーシング１９において継ぎ手固定部材１８のねじ止め部２９の直上部は室内機外郭部材４にケーシング１９を接触させないようにしケーシング１９からの熱伝導を室内機外郭部材４に伝導しにくくするものである。その他の構成は実施の形態１と同様であり、その説明を省略する。
【００４２】
延長配管２１及び冷媒配管継ぎ手１０には冷媒は通過するため、冷媒の温度によっては結露が発生する温度にまで低下する。継ぎ手固定部材１８はケーシング１９に固定され、室内機外郭部材４には接しないので、室内機外郭部材４への熱伝導の影響はないが、ケーシング１９は何らかの形で室内機外郭部材４に固定されることになる。そこで、継ぎ手固定部材１８が固定される部分の周囲となる継ぎ手固定部材１８固定部の直上のケーシング１９部分が室内機外郭部材４と接触しないようにすれば、継ぎ手固定部材１８からケーシング１９を介して室内機外郭部材４までの距離が長くなり、継ぎ手固定部材１８による熱の影響を受け難くなる。この場合ケーシング１９は例えば室内機１のより中央寄りや、継ぎ手固定部材１８が存する面と異なる側面などで室内機外郭部材４に固定される。
【００４３】
実施の形態６．
以下、この天井カセット形エアコンの具体的な実施の形態の他の例について、図面を参照して説明する。
図８は、実施の形態６における図１のＹ方から見た実施の形態であり、ケーシング１９に継ぎ手固定部材１８を固定する部位に於いて冷媒配管継ぎ手１０の直上以外で継ぎ手固定部材１８のねじ止めを行うもので組み付け作業性の改善が図れる。その他の構成は実施の形態１と同様であり、その説明を省略する。
【００４４】
天井カセット型エアコンの室内機は天井室内に埋め込まれるようにして取り付けられる。従って、取付け作業等は室内側即ち室内機下方側からの作業となる。継ぎ手固定部材１８をケーシング１９に固定するに当たって、継ぎ手固定部材１８には冷媒配管継ぎ手１０が突設されている。従って、冷媒配管継ぎ手１０の真上に継ぎ手固定部材１８とケーシング１９との固定手段があると下方からの作業は極めてやりづらくなるが、本実施の形態の構成によれば、継ぎ手肯定部材１８の上部を折曲させ、ここに冷媒配管継ぎ手１０と水平方向にずらしてネジ穴を形成してあるので、下方から容易にドライバを使ってネジ止めできる。
【００４５】
【発明の効果】
以上のように、本発明に係わる天井カセット形エアコンの室内機は、天井室内に設置され、室内機本体外郭部材の内部にケーシング、室内ファン、室内側熱交換器及びドレンパンを備えた天井カセット形エアコンの室内機において、前記室内側熱交換器の片端側には冷媒配管継ぎ手を固持する継ぎ手固定部材を配置し、前記継ぎ手固定部材は下部を宙吊り状態にして前記室内機本体外郭部材に接触することなく前記ケーシングに固定したので、室内機本体外郭部材への熱伝導をなくして室内機本体外郭部材の結露の発生を防止できる効果が得られる。
【００４６】
また、天井室内に設置され、室内機本体外郭部材の内部にケーシング、室内ファン、室内側熱交換器及びドレンパンを備えた天井カセット形エアコンの室内機において、前記室内側熱交換器の片端側には冷媒配管継ぎ手を固定する継ぎ手固定部材を配置し、これら冷媒配管継ぎ手及び継ぎ手固定部材の下方には下部を宙吊り状態にしてドレン受け部材を配置するとともに該下部の先端は前記ドレンパンに重なり代を持ち、前記ドレン受け部材を固定するドレン受け固定部材を前記ドレン受け部材上方を完全に覆うよう該ドレン受け部材の即上に設けたので、継ぎ手固定部材やドレンパンに溜まったドレン水の熱影響を受けず、ドレン受け部材の結露発生を防止しながら確実にドレンパンにドレンを流すことが可能となり、さらにドレン受け部材から室内機本体外郭部材への熱伝導をなくして室内機本体外郭部材の結露の発生を防止でき、天井室内の埃がドレン受け部材に入るのを防止できる効果が得られる。
【００４７】
また、前記冷媒配管継ぎ手に接続される延長配管を覆う断熱材を固定するための断熱材固定バンドを設け、前記断熱材固定バンドを前記ドレン受け部材の上方に設けたので、断熱材固定バンド締め付け部の断熱材圧縮による断熱性能低下からくる結露もドレン受け部材で回収できる効果が得られる。
【００５０】
また、前記ドレン受け固定部材に前記断熱材固定バンドを設けたので、延長配管の断熱材が確実に固定でき、作業バラツキにより断熱材がドレン受け部材から外れることを防止できると共に、断熱材の経年変化による断熱材の収縮によりドレン受け部材より外れることを防止できる効果が得られる。
【００５１】
また、前記ドレン受け固定部材に延長配管の断熱材の配置位置を表示したので、より一層延長配管の断熱材の配置位置を明確に出来、作業効率を向上できる効果が得られる。
【００５２】
また、前記ドレン受け固定部材に延長配管の断熱材を固定するための断熱材固定バンドを設け、この断熱材固定バンドまで前記ドレン受け部材を延設したので、断熱材固定バンド締め付け部の断熱材圧縮による断熱性能低下からくる結露もドレン受け部材で回収できる効果が得られる。
【００５３】
また、前記ドレン受け部材のドレンを受ける底面をドレンパン側が低くなるよう傾斜させたので、ドレンをドレン受け部材内に溜めることなく速やかにドレンパン内に流すことが出来、ドレン受け部材の結露を防止できる効果が得られる。
【００５４】
また、前記ドレン受け部材端部に前記冷媒配管継ぎ手と接続される延長配管を収納する切り欠きを形成したので、ドレン受け部材と延長配管の断熱材間で出来る隙間が減り、より一層埃の進入が防止できる効果が得られる。
【００５５】
また、前記延長配管の断熱材の径が変わった場合に対応するよう前記ドレン受け部材の切り欠きにスリットを設けたので、延長配管の断熱材の径が変わった場合にも対応することができ、埃の進入を防止できる効果が得られる。
【００５６】
また、前記ドレン受け部材のある面に室内機の吊りボルトを配置したので、作業スペースの共用化が図れる効果が得られる。
【００５７】
また、前記ドレン受け固定部材のある面に室内機の吊りボルトを配置したので、作業スペースの共用化が図れる効果が得られる。
【００５８】
また、前記ケーシングは前記継ぎ手固定部材との固定部位に突座面を設けたので、継ぎ手固定部材からケーシングへの熱伝導を小さくとどめ、ケーシングから室内機外郭部材への熱伝導も抑えることが出来る効果が得られる。
【００５９】
また、前記ケーシングは前記継ぎ手固定部材との固定部位直上部が室内機本体外郭部材に接触しないよう構成したので、ケーシングから室内機外郭部材への熱伝導を抑えることが出来る効果が得られる。
【００６０】
また、前記継ぎ手固定部材は継ぎ手の直上以外で前記ケーシングにねじ止め固定されるので、冷媒配管継ぎ手を傷つけることなく容易に作業が出来る効果が得られる。
【図面の簡単な説明】
【図１】この発明の実施の形態１による天井カセット形エアコンの室内機の据付斜視図。
【図２】この発明の実施の形態１による天井カセット形エアコンの室内機の分解斜視図。
【図３】この発明の実施の形態１による天井カセット形エアコンの室内機の部分断面図。
【図４】この発明の実施の形態２による天井カセット形エアコンの室内機のドレン受け固定部材の斜視図。
【図５】この発明の実施の形態３による天井カセット形エアコンの室内機のドレン受け部材の正面図。
【図６】この発明の実施の形態４による天井カセット形エアコンの室内機のケーシングと継ぎ手固定部材の斜視図。
【図７】この発明の実施の形態５による天井カセット形エアコンの室内機の部分断面図。
【図８】この発明の実施の形態６による天井カセット形エアコンの室内機の冷媒配管継ぎ手と継ぎ手固定材を真下から見た図。
【図９】従来の天井カセット形エアコンの室内機の据付斜視図。
【図１０】図９のＡ−Ａ断面で一部切断した従来の天井カセット形エアコンの室内機の一部断面図。
【図１１】図９のＢ−Ｂ断面の天井カセット形エアコンの室内機の断面図。
【符号の説明】
１天井カセット形エアコンの室内機、２熱交換器、３室内ファン、４室内機外郭部材、５ドレンパン、６電気品、７遮蔽板、８吊りボルト、９凹部、１０冷媒配管継ぎ手、１１ねじ、１２くぼみ部、１３吹出口、１４吸込口、１５シール部材、１６ドレン受け部材、１７屋根形状、１８継ぎ手固定部材、１９ケーシング、２０ドレン受け固定部材、２１延長配管、２２断熱材、２３断熱材固定バンド、２４表示、２５傾斜、２６Ｕ字形切り欠き、２７Ｕ字形スリット、２８突座面、２９ねじ止め部、３０断熱材。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an indoor unit of a ceiling cassette type air conditioner, and particularly aims to improve installation.
[0002]
[Prior art]
An example of an indoor unit of a ceiling cassette type air conditioner suspended and embedded in a ceiling room through a hole formed in the ceiling is disclosed in, for example, Japanese Utility Model Publication No. 59-67717 of FIGS.
In the figure, 1 is an indoor unit of a ceiling cassette type air conditioner, and 4 is its outer member. The indoor unit 1 is provided with an indoor heat exchanger 2 and an indoor fan 3 (not shown). Reference numeral 5 denotes a drain pan provided at the lower portion of the heat exchanger 2.
[0003]
The indoor unit 1 is suspended from a building structure by suspension bolts 8. Reference numeral 7 denotes a shielding plate, which integrates two opposing heat exchangers 2. One of the shielding plates 7, 7 provided at both ends of the heat exchangers 2, 2 is formed with a recess 9 in the middle of the shielding plate 7 in accordance with the protruding dimension of the refrigerant pipe joint 10. The refrigerant pipe joint 10 is fixed through screws 11. A roof shape 17 is formed from the outer member 4 above the recess 9. The drain pan 5 also has a recess 12 formed along the recess 9 of the shielding plate 7. Reference numeral 15 denotes a seal member made of rubber or the like interposed between the lower end of the shielding plate 7 and the drain pan 5. The seal member 15 is provided with a drain receiving member 16 at a lower portion of the refrigerant pipe joint 10.
[0004]
[Problems to be solved by the invention]
Since the conventional indoor unit of the ceiling cassette type air conditioner is configured as described above, there are problems to be solved which will be described below.
First, the shielding plate 7 that fixes the refrigerant pipe joint 10 receives the heat effect of the refrigerant during cooling operation, and the drain receiving member 16 that is fixed in contact with the shielding plate 7 is similarly cooled and easily condensed. Furthermore, since it reached that portion of the drain pan 5, it was a bad component configuration that was affected by the heat effect of the drain water that had flowed and accumulated.
Secondly, the shielding plate 7 that fixes the refrigerant pipe joint 10 is fixed in contact with the outer member 4 of the indoor unit 1, and the heat effect during the cooling is conducted through the shielding plate 7 and reaches the outer member 4. The drain pan 5 is not disposed at the lower part of the outer member 4 and must be exposed.
[0005]
Thirdly, the connection space of the extension pipe 21 composed of the roof shape 17 and the drain receiving member 16 is in an open state after connection, and dust in the ceiling chamber accumulates on the drain receiving member 16 to block the flow of dew, and the indoor unit 1 Causes outside exposure.
Fourth, the positional relationship between the heat insulating material of the extension pipe connected to the refrigerant pipe joint 10 and the drain receiving member 16 is not fixed, and the heat insulating material may come off from the projection surface of the drain receiving member 16 due to work variation. Even if the heat insulating material is disposed at the regular position, there is no means for fixing the heat insulating material, and therefore, the heat insulating material shrinks due to aging, and the drain receiving member 16 is exposed.
Fifth, since the position of the suspension bolt 8 is on the outer surface of the indoor unit 1 different from that of the refrigerant pipe joint 10, each work space is required.
[0006]
The present invention has been made to solve the above-described problems, and an object of the present invention is to obtain an indoor unit of a ceiling cassette type air conditioner that can improve the installation of an extension pipe while preventing the influence of exposure.
[0007]
[Means for Solving the Problems]
An indoor unit of a ceiling cassette type air conditioner according to the present invention is an indoor unit of a ceiling cassette type air conditioner that is installed in a ceiling room and includes a casing, an indoor fan, an indoor heat exchanger, and a drain pan inside an outer member of the indoor unit main body. A joint fixing member for holding a refrigerant pipe joint is disposed on one end side of the indoor heat exchanger, and the joint fixing member is suspended from the casing without contacting the indoor unit main body outer member with the lower part suspended. It is fixed.
[0008]
Further, in an indoor unit of a ceiling cassette type air conditioner that is installed in a ceiling room and includes a casing, an indoor fan, an indoor heat exchanger, and a drain pan inside an indoor unit main body outer member, on one end side of the indoor heat exchanger Has a joint fixing member for fixing the refrigerant pipe joint, and a drain receiving member is disposed below the refrigerant pipe joint and the joint fixing member with the lower portion suspended, and the tip of the lower portion overlaps the drain pan. A drain receiving fixing member for holding and fixing the drain receiving member is provided immediately above the drain receiving member so as to completely cover the upper portion of the drain receiving member.
[0009]
In addition, a heat insulating material fixing band for fixing a heat insulating material covering an extension pipe connected to the refrigerant pipe joint is provided, and the heat insulating material fixing band is provided above the drain receiving member.
[0012]
Further, the heat insulating material fixing band is provided on the drain receiving and fixing member.
[0013]
Moreover, the arrangement position of the heat insulating material of the extension pipe is displayed on the drain receiving and fixing member.
[0014]
Further, a heat insulating material fixing band for fixing the heat insulating material of the extension pipe is provided on the drain receiving fixing member, and the drain receiving member is extended to the heat insulating material fixing band.
[0015]
Further, the bottom surface of the drain receiving member for receiving the drain is inclined so that the drain pan side is lowered.
[0016]
Further, a notch for accommodating an extension pipe connected to the refrigerant pipe joint is formed at the end of the drain receiving member.
[0017]
Further, a slit is provided in the notch of the drain receiving member so as to correspond to the case where the diameter of the heat insulating material of the extension pipe is changed.
[0018]
Moreover, the suspension bolt of an indoor unit is arrange | positioned on the surface with the said drain receiving member.
[0019]
Moreover, the suspension bolt of the indoor unit is disposed on the surface on which the drain receiving and fixing member is provided.
[0020]
Further, the casing is provided with a projecting surface at a fixing portion with the joint fixing member.
[0021]
Further, the casing is configured such that the portion directly above the fixing portion with the joint fixing member does not come into contact with the outer member of the indoor unit main body.
[0022]
Further, the joint fixing member is fixed to the casing by screws other than directly above the joint.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
Hereinafter, an example of a specific embodiment of an indoor unit of a ceiling cassette type air conditioner according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view illustrating a state in which the indoor unit is embedded and suspended in a ceiling room according to Embodiment 1 of the present invention.
FIG. 2 is an exploded perspective view of FIG. FIG. 3 is a ZZ cross section shown in FIG. The parts corresponding to those of the prior art are denoted by the same reference numerals, and the description thereof is omitted.
[0024]
As shown in FIGS. 1, 2, and 3, two V-shaped heat exchangers 2 are arranged facing each other at a predetermined interval inside the indoor unit 1 of the ceiling cassette type air conditioner. A joint fixing member 18 that holds the refrigerant pipe joint 10 is provided, and the joint fixing member 18 is not in contact with the indoor unit outer shell member 4, and the lower portion of the joint fixing member 18 is suspended in the air, and the air path in the main body of the indoor unit 1 is provided. Are screwed to one end of the casing 19 through a screwing portion 29.
[0025]
That is, the joint fixing member 18 to which the refrigerant pipe joint 10 is fixed is only in contact with the casing 19, and there is no contact with other parts surrounding the joint fixing member 18. The casing 19 is a member to which the heat exchanger 2 and the like are originally fixed, and dew is generated also in the heat exchanger 2, so that the joint fixing member 18 is fixed to the casing 19 suitable for fixing the dew condensation member. It is possible to prevent the configuration from becoming complicated.
Similarly, the upper portions of the heat exchangers 2 and 2 are fixed to the casing 19 in a state where the lower portion of the heat exchanger 2 is suspended.
[0026]
The lower portion of the refrigerant pipe joint 10 and the joint fixing member 18 is drained to receive dew that flows from the exposed portions of the refrigerant pipe joint 10 and the joint fixing member 18 and the heat insulating material 22 of the extension pipe 21 that are not covered. The receiving member 16 is arranged in a state where the lower part is suspended in the air, and the tip of the receiving member 16 is arranged so as to overlap the drain pan 5. A heat insulating material 30 is provided on the inner side of the drain receiving member 16 that receives the drain so as not to transmit the heat conduction of the drain water to the drain receiving member 16, and an inclination 25 is formed so as to be lowered toward the drain pan 5.
A fixing band 23 is disposed on the upper side of the drain receiving member 16, and a U-shaped notch 26 for accommodating the extension pipe is formed on the end surface of the drain receiving member 16, and the upper end is a blunt receiving fixing described later. The engaging portion is fixed to the member 20 with screws.
[0027]
Reference numeral 20 denotes a drain receiving and fixing member that completely covers the upper portion of the drain receiving member 16 and is disposed so as to protrude from the indoor unit 1. A heat insulating material fixing band 23 for fixing the heat insulating material 22 of the extension pipe 21 is fixed to the drain receiving and fixing member 20.
Although the indoor unit 1 is suspended from the building structure by the suspension bolts 8, the suspension bolts 8 are arranged on the same side of the indoor unit 1 as the drain receiving member 16 and the drain receiving fixing member 20 to share the work space. Yes.
The heat exchanger 2, the drain receiving member 16, the joint fixing member 18, and the fixing band 23 are fixed with screws fixed from a predetermined direction (in this embodiment, from below to above), and are disassembled when recycled. Excellent recyclability and improved recyclability.
[0028]
In the indoor unit configured as described above, since the refrigerant pipe joint 10 is fixed to the joint fixing member 18, the connection work of the refrigerant pipe joint 10 and the extension pipe 21 is changed from the conventional double spanner work to the single spanner work. It becomes possible to do. Since the joint fixing member 18 is screwed and fixed to the casing 19 to which the heat exchanger 2 is fixed and does not contact the indoor unit outer member 4, the indoor unit outer member 4 is cooled by heat conduction from the joint fixing member 18. Condensation can be prevented.
[0029]
Moreover, since the casing 19 originally fixes the heat exchanger 2, the drain pan 5 is installed in the lower part, and it has the structure which can collect | recover drains. Therefore, a special drain collecting configuration of the casing 19 by fixing the joint fixing member 18 to the casing 19 is not required.
[0030]
In addition, since the drain dripping from the refrigerant pipe joint 10 and the joint fixing member 18 can be reliably captured by the drain receiving member 16, the work of covering the connecting portion between the refrigerant pipe joint 10 and the extension pipe 21 with a heat insulating material can be eliminated. . Since the drain receiving member 16 is suspended in the lower portion and the tip thereof has an overlap margin above the drain pan 5, the drain dripped onto the drain receiving member 16 travels along the inclination of the drain receiving member 16 to the drain pan 5. Collected. At that time, since the drain receiver 16 is suspended, the drain receiver 16 can be prevented from being cooled by the cold drain accumulated in the drain pan 5, and the condensation of the drain receiver 16 itself can be prevented.
[0031]
Further, the drain receiving member 16 is screwed and fixed to the drain receiving fixing member 20 and does not come into contact with the indoor unit outer member 4, so that the indoor unit outer member 4 is cooled and condensed by heat conduction from the drain receiving member 16. Can be prevented. The drain receiving and fixing member 20 is formed of a material having excellent heat insulation or low heat conductivity, and is fixed to the indoor unit outer member 4.
[0032]
Further, the drain receiving member 16 and the drain receiving fixing member 20 have a protruding length that covers even the fixing band 23 that fixes the heat insulating material 22 to the extension pipe 21. In particular, the fixing band 23 is fixed to the drain receiving fixing member 20. For this reason, it is possible to reliably cover the heat insulating material portion even with aging. Further, the heat conduction from the fixed band 23 can be prevented from reaching the indoor unit outer shell member 4. The protruding dimension of the drain receiving fixing member 20 is substantially equal to the protruding dimension of the drain receiving member 16. Further, since the drain receiving member 16 is fixed to the drain receiving fixing member 20 and covers the extension pipe 22 except for the U-shaped cutout portion 26, dust and the like are prevented from accumulating on the drain receiving member 16. it can.
[0033]
Embodiment 2. FIG.
Hereinafter, another example of a specific embodiment of the ceiling cassette type air conditioner will be described with reference to the drawings.
FIG. 4 is a perspective view showing the drain receiver fixing member 20 according to the second embodiment. In the present embodiment, the drain receiver fixing member 20 is provided with a display 24 indicating the arrangement position of the heat insulating material 22 of the extension pipe 21. It is. Other configurations are the same as those of the first embodiment, and the description thereof is omitted.
[0034]
Next, the operation will be described. In the operation of connecting the extension pipe 21 to the refrigerant pipe joint 10, the extension pipe 21 is first connected and fixed to the refrigerant pipe joint 10. Since the joint fixing member 18 is fixed to the casing 19, the connection work can be performed with a single spanner. The extension pipe 21 may be wound before or after being connected, but the heat insulating material 22 is wound around, and the wound heat insulating material 21 is attached to the heat insulating material fixing band 23 (not yet attached in FIG. 4, but drain receiving and fixing as shown in FIG. 2). Are attached and fixed to the member 20).
[0035]
In fixing the heat insulating material 21 to the heat insulating material fixing band 23, the end surface of the heat insulating material 21 is aligned with the position of the line of the display 24 in accordance with the display 24 of the drain receiving fixing member 20. As a result of mounting and fixing in this manner, since the heat insulating material is surely positioned on the drain receiving member 16, the drain generated in the vicinity of the connection portion between the extension pipe 21 and the refrigerant pipe joint 10 where the heat insulating material 21 is interrupted is reliably drained. It drops on the receiving member 16 and is collected in the drain pan 5.
[0036]
Embodiment 3 FIG.
Hereinafter, another example of a specific embodiment of the ceiling cassette type air conditioner will be described with reference to the drawings.
FIG. 5 is a front view showing the drain receiving member 16 according to the third embodiment. In this embodiment, a U-shaped notch 26 is formed at a portion corresponding to the heat insulating material 22 of the extension pipe 21 at the end of the drain receiving member 16. A U-shaped slit 27 is formed on the outer periphery of the U-shaped notch 26 so as to cope with a change in the diameter of the heat insulating material 22 of the extension pipe 21. Other configurations are the same as those of the first embodiment, and the description thereof is omitted.
[0037]
When the extension pipe is connected, the extension pipe 21 covered with the heat insulating material 22 is normally stored in the U-shaped cutout 26 while the slit 27 of the drain receiving member 16 is left as it is. In this state, since the gap between the U-shaped notch 26 and the heat insulating material 22 is small or almost absent, the function of the drain receiving fixing member 20 as a lid can prevent dust from entering the drain receiving member 16.
[0038]
Further, if the heat insulating material 22 is too thick to fit in the U-shaped cutout 26, it can be easily dealt with by removing the portion on the cutout 26 side from the slit 27 and making the cutout 26 larger. Since the drain receiving member 16 is a separate component from the indoor unit 1, it can be expected to reduce the cost due to the mass production effect when used in common with the indoor unit 1 having different air conditioning capabilities. If such a slit 27 is formed in the drain receiving member 16, the range in which the drain receiving member 16 can be shared with an air conditioner having a different diameter of the extension pipe is expanded.
[0039]
Embodiment 4 FIG.
Hereinafter, another example of a specific embodiment of the ceiling cassette type air conditioner will be described with reference to the drawings.
FIG. 6 is an enlarged perspective view of a fixing portion between the casing 19 and the joint fixing member 18 according to the fourth embodiment. In this embodiment, only the back side of the screwing portion 29 of the joint fixing member 18 is protruded from the casing 19. 28 is provided to minimize the contact range between the joint fixing member 18 and the casing 19. Other configurations are the same as those of the first embodiment, and the description thereof is omitted.
[0040]
In order to fix the joint fixing member 18 to the casing 19, the screw hole formed in the bent portion of the upper portion of the joint fixing member 18 and the projecting surface 28 formed on the lower surface of the casing 19 are aligned, and a screw is attached from below. Insert and screw. As a result, the contact between the joint fixing member 18 and the casing 19 is only the projecting surface 28 portion, and the contact area is small, so that the influence of heat conduction between the joint fixing member 18 and the casing can be reduced. As a result, the occurrence of condensation due to heat conduction can be suppressed.
[0041]
Embodiment 5 FIG.
Hereinafter, another example of a specific embodiment of the ceiling cassette type air conditioner will be described with reference to the drawings.
FIG. 7 is another embodiment of the ZZ cross section of FIG. 1 according to the fifth embodiment. In the casing 19, the upper portion of the screw fixing portion 29 of the joint fixing member 18 is attached to the indoor unit outer member 4. The heat conduction from the casing 19 is made difficult to be conducted to the indoor unit outer shell member 4 so as not to be contacted. Other configurations are the same as those of the first embodiment, and the description thereof is omitted.
[0042]
Since the refrigerant passes through the extension pipe 21 and the refrigerant pipe joint 10, the refrigerant falls to a temperature at which condensation occurs depending on the temperature of the refrigerant. Since the joint fixing member 18 is fixed to the casing 19 and does not contact the indoor unit outer member 4, there is no influence of heat conduction to the indoor unit outer member 4, but the casing 19 is fixed to the indoor unit outer member 4 in some form. Will be. Therefore, if the portion of the casing 19 immediately above the joint fixing member 18 fixing portion around the portion to which the joint fixing member 18 is fixed does not come into contact with the indoor unit outer member 4, the joint fixing member 18 and the casing 19 are interposed. As a result, the distance to the indoor unit outer shell member 4 becomes longer, and it becomes difficult to be affected by heat from the joint fixing member 18. In this case, the casing 19 is fixed to the indoor unit outer member 4 by, for example, closer to the center of the indoor unit 1 or a side surface different from the surface on which the joint fixing member 18 exists.
[0043]
Embodiment 6 FIG.
Hereinafter, another example of a specific embodiment of the ceiling cassette type air conditioner will be described with reference to the drawings.
FIG. 8 is an embodiment as viewed from the Y direction in FIG. 1 in the sixth embodiment. In the portion where the joint fixing member 18 is fixed to the casing 19, the joint fixing member 18 is not directly above the refrigerant pipe joint 10. Assembling workability can be improved by screwing. Other configurations are the same as those of the first embodiment, and the description thereof is omitted.
[0044]
The indoor unit of the ceiling cassette type air conditioner is attached so as to be embedded in the ceiling room. Accordingly, the mounting operation or the like is performed from the indoor side, that is, from the lower side of the indoor unit. When the joint fixing member 18 is fixed to the casing 19, the refrigerant pipe joint 10 protrudes from the joint fixing member 18. Therefore, if there is means for fixing the joint fixing member 18 and the casing 19 directly above the refrigerant pipe joint 10, the work from below is extremely difficult. However, according to the configuration of the present embodiment, the joint positive member 18 Since the upper part is bent and a screw hole is formed by shifting it in the horizontal direction with respect to the refrigerant pipe joint 10, it can be easily screwed with a screwdriver from below.
[0045]
【The invention's effect】
As described above, the indoor unit of the ceiling cassette type air conditioner according to the present invention is installed in a ceiling room, and includes a casing, an indoor fan, an indoor heat exchanger, and a drain pan inside the indoor unit main body outer member. In an indoor unit of an air conditioner, a joint fixing member that holds a refrigerant pipe joint is disposed on one end side of the indoor side heat exchanger, and the joint fixing member comes into contact with the outer member of the indoor unit body with the lower part suspended. Since it was fixed to the casing without any effect, it is possible to eliminate the heat conduction to the outer member of the indoor unit main body and to prevent the condensation of the outer member of the indoor unit main body.
[0046]
Further, in an indoor unit of a ceiling cassette type air conditioner that is installed in a ceiling room and includes a casing, an indoor fan, an indoor heat exchanger, and a drain pan inside an indoor unit main body outer member, on one end side of the indoor heat exchanger Has a joint fixing member for fixing the refrigerant pipe joint, and a drain receiving member is disposed below the refrigerant pipe joint and the joint fixing member with the lower portion suspended, and the tip of the lower portion overlaps the drain pan. And a drain receiving fixing member for fixing the drain receiving member is provided immediately above the drain receiving member so as to completely cover the upper portion of the drain receiving member. Without draining, it is possible to reliably drain the drain pan while preventing condensation on the drain receiving member. After eliminating the heat conduction to the indoor unit main body outer shell member can prevent the occurrence of dew condensation in the indoor unit main body outer shell member, the effect of the ceiling indoor dust can be prevented from entering the drain pan member is obtained.
[0047]
In addition, since the heat insulating material fixing band for fixing the heat insulating material covering the extension pipe connected to the refrigerant pipe joint is provided and the heat insulating material fixing band is provided above the drain receiving member, the heat insulating material fixing band is tightened. Condensation resulting from a decrease in heat insulating performance due to compression of the heat insulating material at the part can be recovered by the drain receiving member.
[0050]
In addition, since the heat insulating material fixing band is provided on the drain receiving fixing member, the heat insulating material of the extension pipe can be securely fixed, and it is possible to prevent the heat insulating material from being detached from the drain receiving member due to work variation, and the aging of the heat insulating material. The effect which can prevent coming off from a drain receiving member by shrinkage | contraction of the heat insulating material by a change is acquired.
[0051]
Moreover, since the arrangement position of the heat insulating material of the extension pipe is displayed on the drain receiving and fixing member, the arrangement position of the heat insulating material of the extension pipe can be further clarified, and the effect of improving the working efficiency can be obtained.
[0052]
Moreover, since the heat insulating material fixing band for fixing the heat insulating material of the extension pipe is provided on the drain receiving fixing member, and the drain receiving member is extended to the heat insulating material fixing band, the heat insulating material of the heat insulating material fixing band fastening portion Condensation resulting from a decrease in heat insulation performance due to compression can be recovered by the drain receiving member.
[0053]
Further, since the bottom surface of the drain receiving member that receives the drain is inclined so that the drain pan side is lowered, the drain can be quickly flowed into the drain pan without accumulating in the drain receiving member, and condensation of the drain receiving member can be prevented. An effect is obtained.
[0054]
In addition, since the notch for accommodating the extension pipe connected to the refrigerant pipe joint is formed at the end of the drain receiving member, the gap formed between the heat insulating material of the drain receiving member and the extension pipe is reduced, and dust can enter further. The effect which can prevent is acquired.
[0055]
Moreover, since the slit is provided in the notch of the drain receiving member so as to correspond to the case where the diameter of the heat insulating material of the extension pipe changes, it is possible to cope with the case where the diameter of the heat insulating material of the extension pipe changes. The effect which can prevent intrusion of dust is acquired.
[0056]
Further, since the suspension bolts of the indoor unit are arranged on the surface where the drain receiving member is provided, an effect that the work space can be shared is obtained.
[0057]
Moreover, since the suspension bolt of the indoor unit is arranged on the surface on which the drain receiving and fixing member is provided, an effect that the work space can be shared is obtained.
[0058]
In addition, since the casing is provided with a projecting surface at a fixing portion with the joint fixing member, heat conduction from the joint fixing member to the casing can be kept small, and heat conduction from the casing to the indoor unit outer member can be suppressed. An effect is obtained.
[0059]
In addition, since the casing is configured such that the portion directly above the fixing portion with the joint fixing member is not in contact with the indoor unit main body outer member, an effect of suppressing heat conduction from the casing to the indoor unit outer member is obtained.
[0060]
In addition, since the joint fixing member is screwed and fixed to the casing other than just above the joint, an effect can be easily obtained without damaging the refrigerant pipe joint.
[Brief description of the drawings]
FIG. 1 is an installation perspective view of an indoor unit of a ceiling cassette type air conditioner according to Embodiment 1 of the present invention.
FIG. 2 is an exploded perspective view of an indoor unit of a ceiling cassette type air conditioner according to Embodiment 1 of the present invention.
FIG. 3 is a partial sectional view of an indoor unit of a ceiling cassette type air conditioner according to Embodiment 1 of the present invention.
FIG. 4 is a perspective view of a drain receiver fixing member of an indoor unit of a ceiling cassette type air conditioner according to Embodiment 2 of the present invention.
FIG. 5 is a front view of a drain receiving member of an indoor unit of a ceiling cassette type air conditioner according to Embodiment 3 of the present invention.
FIG. 6 is a perspective view of a casing and a joint fixing member of an indoor unit of a ceiling cassette type air conditioner according to Embodiment 4 of the present invention.
FIG. 7 is a partial cross-sectional view of an indoor unit of a ceiling cassette type air conditioner according to Embodiment 5 of the present invention.
FIG. 8 is a view of a refrigerant pipe joint and a joint fixing member of a ceiling cassette type air conditioner indoor unit according to Embodiment 6 of the present invention as viewed from directly below.
FIG. 9 is an installation perspective view of a conventional ceiling cassette type air conditioner indoor unit.
10 is a partial cross-sectional view of a conventional ceiling cassette type air conditioner indoor unit partially cut along the AA cross section of FIG. 9;
11 is a cross-sectional view of the indoor unit of the ceiling cassette type air conditioner of the BB cross section of FIG. 9;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Indoor unit of a ceiling cassette type air conditioner, 2 Heat exchanger, 3 Indoor fan, 4 Indoor unit outer member, 5 Drain pan, 6 Electrical goods, 7 Shield plate, 8 Suspension bolt, 9 Recess, 10 Refrigerant piping joint, 11 Screw, 12 indentations, 13 air outlets, 14 air inlets, 15 seal members, 16 drain receiving members, 17 roof shapes, 18 joint fixing members, 19 casings, 20 drain receiving fixing members, 21 extension pipes, 22 heat insulating materials, 23 heat insulating materials Fixed band, 24 indication, 25 slope, 26 U-shaped notch, 27 U-shaped slit, 28 projecting surface, 29 screwing part, 30 heat insulating material.

Claims

In a ceiling cassette type air conditioner indoor unit installed in a ceiling room and having a casing, an indoor fan, an indoor heat exchanger, and a drain pan inside an indoor unit main body outer member, a refrigerant is provided at one end of the indoor heat exchanger. An interior of a ceiling cassette type air conditioner characterized in that a joint fixing member for fixing a pipe joint is arranged, and the joint fixing member is suspended in a suspended state and fixed to the casing without contacting the outer member of the indoor unit main body. Machine.

An indoor unit of a ceiling cassette type air conditioner installed in a ceiling room and having a casing, an indoor fan, an indoor heat exchanger, and a drain pan inside an indoor unit main body outer member, a refrigerant is provided at one end of the indoor heat exchanger. place the joint fixing member for fixing a pipe joint, the distal end of the lower portion with placing the drain receiving member and the lower the suspended state below these refrigerant pipe joints and joint fixing member Chi lifting the margin overlap the drain pan An indoor unit of a ceiling cassette type air conditioner , wherein a drain receiver fixing member for fixing the drain receiver member is provided immediately above the drain receiver member so as to completely cover the drain receiver member .

The heat insulating material fixing band for fixing the heat insulating material which covers the extension piping connected to the said refrigerant | coolant piping joint was provided, and the said heat insulating material fixing band was provided above the said drain receiving member. Indoor unit of ceiling cassette type air conditioner.

The indoor unit of a ceiling cassette type air conditioner according to claim 3, wherein the heat insulating material fixing band is provided on the drain receiving and fixing member .

The indoor unit of a ceiling cassette type air conditioner according to claim 2, wherein an arrangement position of the heat insulating material of the extension pipe is displayed on the drain receiving and fixing member .

The ceiling cassette type air conditioner according to claim 2, wherein a heat insulating fixing band for fixing a heat insulating material of an extension pipe is provided on the drain receiving fixing member, and the drain receiving member is extended to the heat insulating material fixing band. Indoor unit.

The indoor unit of a ceiling cassette type air conditioner according to claim 2, wherein a bottom surface of the drain receiving member for receiving the drain is inclined so that a drain pan side is lowered.

The indoor unit of a ceiling cassette type air conditioner according to claim 2, wherein a notch for accommodating an extension pipe connected to the refrigerant pipe joint is formed at an end of the drain receiving member.

9. The indoor unit of a ceiling cassette type air conditioner according to claim 8 , wherein a slit is provided in the notch of the drain receiving member so as to cope with a case where the diameter of the heat insulating material of the extension pipe changes.

The indoor unit of a ceiling cassette type air conditioner according to claim 2, wherein a suspension bolt of the indoor unit is arranged on a surface on which the drain receiving member is provided.

The indoor unit of a ceiling cassette type air conditioner according to claim 3, wherein a suspension bolt of the indoor unit is arranged on a surface on which the drain receiving and fixing member is provided.

2. The indoor unit of a ceiling cassette type air conditioner according to claim 1, wherein the casing is provided with a projecting surface at a fixing portion with the joint fixing member.

2. The indoor unit of a ceiling cassette type air conditioner according to claim 1, wherein the casing is configured such that a portion directly above a fixing portion with the joint fixing member does not contact an outer member of the indoor unit main body.

The indoor unit of a ceiling cassette type air conditioner according to claim 1, wherein the joint fixing member is fixed to the casing by screws other than directly above the joint.