JP4305999B2 - Air conditioner outdoor unit - Google Patents

Air conditioner outdoor unit Download PDF

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Publication number
JP4305999B2
JP4305999B2 JP07910099A JP7910099A JP4305999B2 JP 4305999 B2 JP4305999 B2 JP 4305999B2 JP 07910099 A JP07910099 A JP 07910099A JP 7910099 A JP7910099 A JP 7910099A JP 4305999 B2 JP4305999 B2 JP 4305999B2
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Prior art keywords
outdoor unit
outside air
duct
air conditioner
partition plate
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JP2000275372A (en
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洋一 高塚
寿 植野
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Description

【０００１】
【発明の属する技術分野】
この発明は、空気調和機の室外ユニットにおける電気品の冷却装置に関する。
【０００２】
【従来の技術】
図１５は、従来の空気調和機の室外ユニット内部部品の配置を示す平面図、図１６は空気調和機の室外ユニット内部部品の配置を示す正面図である。図において、１は空気調和機の室外ユニット本体、２は熱交換器３の前面にプロペラファン４とファン駆動用のファンモ−タ５を配置し、その前面にグリル６を設けた送風室７と上部に室外ユニットの制御用の電気品８ａを収納する電気品箱体８を配した機械室９とに区画している仕切板、１０は前記電気品箱体８の送風室７側に面した左側面に配置した電気品放熱用の放熱板、１１は前記機械室９の下部に底板１２の上に配置した圧縮機で、右側面には室内ユニット（図示していない）と冷媒を接続する内外接続部１３を設けている。１４は点検パネルで、下部に前記内外接続部１３に対応して下部外気取入れ口１５を設けている。
【０００３】
次に、動作について説明する。前記電気品箱体８内部の部品の放熱経路はプロペラファン４とファンモ−タ５により発生した負圧により、室外ユニット右側面の外気取り入れ口１５から外気を室外ユニット１内部に取込み、電気品箱体８内部を通過する。この際、電気部品を冷却し熱交換された温風は送風機室７へ排出され、熱交換器３を通過し熱交換され、かつ放熱板１０に当たり冷却し室外ユニット１外に吐出される。
【０００４】
また、電気品の背面にヒートシンクを配置し、室内あるいは室外からの空気をダクト経由ダクトに設けた小穴からヒートシンクに向けて噴出させることによって、電気品の冷却効率を高める技術が、特開平０５−３３３１７４号公報に開示されている。
【０００５】
また、インバータ搭載の空調機室外機電装品の冷却効率を高めるために、発熱をヒートパイプを通して仕切り板の外側へ導かれ、外側に設けた冷却フィンを送風により冷却する技術が、特開平０１−２０８６２６号公報に開示されている。
【０００６】
【発明が解決しようとする課題】
従来の空気調和機の室外ユニットは、放熱板を冷却するのに熱交換器を通過した熱交換外風を利用するため熱交換器で外風が熱交換し暖められてしまい、放熱板を冷却する際には、熱交換器を通過する前の状態より温度が上昇していまい放熱板の冷却効率が低下してしまい、電気品の寿命を短くするなどの問題があった。
【０００７】
また、放熱板は熱交換器を通過する風路内に配置しなければならず、電気部品の配置位置が自由に選択できず制限されるなどの問題もあった。
【０００８】
この発明は、放熱板も冷却効率を向上させると共に、電気品の寿命を延ばし、かつ電気部品の配置位置が自由に選択できるようにしたことを目的とする。
【０００９】
【課題を解決するための手段】
この発明の空気調和機の室外ユニットは、送風機室に設けた熱交換器の前面に送風機を配置し、仕切り板により圧縮機を備える機械室と前記送風機室とに区画し、前記機械室に電気品を収納する箱体を備え、この電気品箱体内の電気品を冷却する放熱板を配置し外気により取入れ口を備えた室外ユニットにおいて、前記放熱板の周囲を覆い外気風を通風させるダクトを、室外ユニット本体の右側面と送風機室に通じる仕切板とに設けた開口を接続するとともに、前記電気品箱体の制御基板の近傍に設けられた排気口と前記ダクトの上部開口とを接続して風路を形成する風路カバーを設けたものである。
【００１０】
この発明の空気調和機の室外ユニットは、上部外気取入れ口と仕切り板の開口とを接続するダクトの下面板を仕切り板に向けて下り勾配にしたものである。
【００１１】
この発明の空気調和機の室外ユニットは、上部外気取入れ口と仕切り板の開口とを接続するダクトの下面板に雨水排水口を設けたものである。
【００１２】
この発明の空気調和機の室外ユニットは、上部外気取入れ口と仕切り板の開口とを接続するダクトの下面板を仕切り板から上部外気取入れ口に向かい下り勾配にしたものである。
【００１４】
【発明の実施の形態】
実施の形態１．
以下、図１ないし図３に示す実施の形態１である空気調和機の室外ユニットについて説明する。図１はこの発明の実施の形態１による空気調和機の室外ユニット内部部品の配置を示す平面図、図２はこの発明の実施の形態１による空気調和機の室外ユニット内部部品の配置を示す正面図、図３この発明の実施の形態１による空気調和機の室外ユニット内部部品の配置を示す要部拡大斜視図である。図おいて、１は空気調和機の室外ユニット本体、２は熱交換器３の前面にプロペラファン４とファン駆動用のファンモ−タ５を配置し、その前面にグリル６を設けた送風機室７と上部に室外ユニットの制御用の電気品８ａを収納する電気品箱体８を配した機械室９とに区画している仕切り板、１０は電気品放熱用の放熱板、１１は前記機械室９の下部の底板１２の上に配置した圧縮機で、右側面には室内ユニット（図示していない）と冷媒配管で接続する内外接続部１３を設けている。
【００１５】
１４は点検パネルで、前記内外接続部１３に対応した下部外気取入れ口１５を、上部には前記電気品箱体８に対応して上部外気取入れ口１６を設けている。１７は空気調和機の室外ユニット本体１の背面を形成する背面パネルで、前記機械室９の背面および側面の一部外郭を形成している。１８は空気調和機の運転制御をする制御基板で、この背面に電源系制御素子の放熱用の放熱板１０が電気品箱体８背面に吐出配置されている。１９は前記電気品箱体８の側面に設けられている電気品開口、２０は前記電気品箱体８背面の左右う方向に設置し、前記放熱板１０の周囲を覆うダクトで、上部外気取入れ口１６と、前記仕切り板２に設けた前記送風機室７と通じる仕切板開口２１とを接続するように配置されている。
【００１６】
次に、冷却風の動作を説明する。まず、放熱板１０の冷却では、点検パネル１４の上部外気取入れ口１６から外気風Ａがダクト２０の内部を通過し、その際放熱板６の熱を奪い仕切板開口２１から送風機室７に吐出される。
【００１７】
また、電気品箱体８の冷却では、電気品冷却風Ｂが機械室９の点検パネル１４下部に設けられている下部外気取入れ口１５より室外ユニット内部に取り込み、室内ユニットに接続する内外接続部１３を通過し電気品箱体８の側面に設けられている電気品開口１９から電気品８ａ内部に通じる。この際電気品８ａ内部の熱を奪い、部品の冷却を行う。
【００１８】
実施の形態２．
図４は、この発明の実施の形態２による空気調和機の室外ユニット内部部品の配置を示す要部拡大斜視図である。図において、２２は前記電気品箱体８の電気品開口１９のダクト側面板２０ａに設けたダクト側面開口である。
【００１９】
次に、実施の形態２による冷却風の動作を説明する。まず、放熱板１０の冷却では、外気風Ａが直接上部外気取入れ口１６からダクト２０の内部を通過し、その際放熱板１０の熱を奪い仕切板開口２１から送風機室７に吐出される。そして電気品冷却風Ｂは機械室９の点検パネル１４の下部に設けられている下部外気取入れ口１５より室外ユニット内部に取り込み、室内ユニットに接続する内外接続部１３を通過し電気品箱体８の側面に設けられている電気品開口１９から電気品８ａ内部に通じると同時に電気品開口１９の入る手前の風の一部をダクト側面開口２２よりダクト１５内部に分流する。すると前記外気風Ａとダクト２０内部で合流して通過し風量が増すため、より放熱板６の放熱が促進され冷却効率が向上する。
【００２０】
実施の形態３．
図５はこの発明の実施の形態３による空気調和機の室外ユニット内部部品の配置を示す要部拡大斜視図、図６は図５の断面図である。図において、２３はダクト２０の放熱板１０上部位置に設けたダクト上部開口、２４はそのダクト上部開口２３を覆い、電気品箱体８の背面上部に設けた排気口２５を風路形成し接続する風路カバ−である。
【００２１】
次に、実施の形態３による冷却風の動作を説明する。電気品冷却風Ｂは、この排気口２３を通り風路カバ−２２により形成された風路を通じダクト上部開口２１を通りダクト１５を介し熱交換器室へ通じ、グリル４から室外ユニット外部へ放出される。排気口２５は制御基板１４の近傍に設けられるため、電気品冷却風Ｂは制御基板１８上に沿って流れるため、制御基板１８に実装された電源制御系部品は冷却される。
【００２２】
この実施の形態３によれば制御基板１８に実装されて発熱する電子部品で電源制御系の部品は、この部品の冷却を電気品冷却風Ｂが通過することによって、確実に冷却し、部品の故障、又は破壊をなくし、電子部品の寿命を延ばすなどの利点が生じる。
【００２３】
実施の形態４．
図７はこの発明の実施の形態４による空気調和機の室外ユニットのダクト部分を示す要部拡大断面図である。図において、２は仕切り板、１６は前記点検パネル１４に設けられている上部外気取入れ口、１７ａはこの上部外気取入れ口１６に対応して前記背面パネル１７の側面側に設けた外気口、２０ａは前記ダクト２０の下面を構成するダクト下面板で、取付けた状態で前記仕切り板２に向けて角度Ａ°の下り勾配の傾斜を成している。
【００２４】
この実施の形態４による動作を説明する。放熱板１０を冷却するためにダクト２０には、上部外気取入れ口１６を介し外気風１６が外気口１７ａから内部に取り入れられる。そのため、点検パネル１４の上部外気取入れ口１６から外気風Ａとともに雨水などがダクト２０内部に侵入してくる。そこで、ダクト２０内部に侵入してきた雨水などは、ダクト２０の下面板２０ａ表面を流れ送風機室７側に排水され、室外ユニット下面の底板１２へ落ち、そこから凝縮水と一緒に室外ユニット１外へ放出されか、又は送風気流に飛ばされて室外ユニット１外へ放出される。
【００２５】
実施の形態５．
図８はこの発明の実施の形態５による空気調和機の室外ユニットのダクト部分を示す要部拡大断面図である。図において、２０ｃは前記ダクト２０の下面を構成する下がり勾配のついたダクト下面板２０ｂに設けた雨水排水口で、前記点検パネル１４の上部外気取入れ口１６側に近いところに形成している。
そして侵入してきた雨水２４をすぐに排水するようにし、ダクト２０内部に溜まる雨水の量を減らすと共に、この雨水排水口２０ｃからダクト２０内部に空気を呼び込み放熱板６の冷却風として利用する。
【００２６】
実施の形態６．
図９はこの発明の実施の形態６による空気調和機の室外ユニットのダクト部分を示す要部拡大断面図である。前記実施の形態５ではダクト２０の下面板２０ｂを送風機室７側へ向かい角度Ａ°の傾斜で下がり勾配としたが、この発明の実施の形態６では逆に送風機室７側から点検パネル１４側にへ向かい角度Ａ°の傾斜で下がり勾配としたものである。
【００２７】
この場合のダクト２０内部に侵入した雨水は、ダクト２０の下面板２０ｂを伝い背面パネル１７の外面に伝わり室外ユニットの下面である底板１２から室外ユニット外部へ排水される。
【００２８】
実施の形態７．
図１０はこの発明の実施の形態７による空気調和機の室外ユニット内部部品の配置を示す平面図である。前記実施の形態１ないし実施の形態３では、点検パネル１４の左側面から外気を取り入れダクト２０を介して放熱板１０を冷却する装置について説明してきたが、室外ユニット１の背面から背面から外気を取り入れても良い。図１０において、２６は背面パネル１７に設けられた背面外気取入れ口、２７はこの背面外気取入れ口２６と前記仕切り板２に形成した仕切板開口２１とを連通接続し設けた背面外気風ダクトで、このダクト内部を外気風Ａが流れ、放熱板１０の冷却を行う。
【００２９】
実施の形態８．
図１１はこの発明の実施の形態８による空気調和機の室外ユニットを示す要部拡大斜視図、図１２は図１１の要部拡大断面図である。図において、２８は点検パネル１４の右側面に設けられている切起こし外気取入れ口で、切起し片２８ａが内側で上方に向かい開いる。ここから放熱板１０の冷却用の外気風Ａをダクト２０内部に取り込む。２９は前記点検パネル１４の切起こし外気取入れ口２８に対抗して室外ユニット内面側に位置し、背面パネル１７の右側面に設けられた背面パネル開口である。
【００３０】
次に、動作について説明する。切起こし外気取入れ口２８が室外ユニット１内面上方に開いているため、雨水が直接室外ユニット１にはいることなく外気風Ａを内部に取り込むことができ、また開口の穴が正面から見た際、見にくいため美的にも優れている。
【００３１】
実施の形態９．
図１３この発明の実施の形態９による空気調和機の室外ユニットを示す要部分解斜視図、図１４は図１３の側面断面図である。、図において、３０は前記点検パネル１４の右側面に設けられている長穴外気取入れ口、３１はこの長穴外気取入れ口に対抗して前記背面パネル１０の右側面に設けられたフランジ開口で、このフランジ開口３１の外周端面は、前記点検パネル１４の方へ隆起しており背面パネル１７の表面を伝わる雨水がフランジ開口３１からダクト２０内部の侵入を防いでいる。
【００３２】
次に、点検パネル１４の長穴外気取入れ口３０が室外ユニット内面側に位置し、上下方向に外気取入れ口３０とフランジ開口３１との開口位置がズレ正面から見た際、穴が見えないように長穴外気取入れ口３０とフランジ開口３１の穴位置がずれているため、雨水が直接室外ユニット１にはいることなく外気風Ａを内部に取り込むことができ、また長穴外気取入れ口３０とフランジ開口３１とが正面から見た際、重ならず見えにくいため見栄え的にも優れている。
【００３３】
【発明の効果】
以上説明したようにこの発明の空気調和機の室外ユニットは、送風機室に設けた熱交換器の前面に送風機を配置し、仕切り板により圧縮機を備える機械室と前記送風機室とに区画し、前記機械室に電気品を収納する箱体を備え、この電気品箱体内の電気品を冷却する放熱板を配置し外気により取入れ口を備えた室外ユニットにおいて、前記放熱板の周囲を覆い外気風を通風させるダクトを、室外ユニット本体の右側面と送風機室に通じる仕切板とに設けた開口を接続するよう配置するとともに、前記電気品箱体の制御基板の近傍に設けた排気口と前記ダクトの上部開口とを接続して風路を形成する風路カバーを設けた構成としたから、放熱板を冷却する外気風を熱交換器を介することなく直接使用できるため、冷却効率を向上させ、部品配置の自由度が広がり室外ユニットの部品収納効率が向上しコンパクト化が図れ、また制御基板に実装している電源制御系部品の冷却効率を向上させ、電気品の長寿命化を図ることができる利点を有する。
【００３４】
また、この発明の空気調和機の室外ユニットは、上部外気取入れ口と仕切り板の開口とを接続するダクトの下面板を仕切り板に向けて下り勾配にした構成としたから、雨水の排水処理を安易にでき、板金部品の酸化を抑制でき、製品の長期使用が可能となる利点を有する。
【００３５】
また、この発明の空気調和機の室外ユニットは、上部外気取入れ口と仕切り板の開口とを接続するダクトの下面板に雨水排水口を設けた構成としたから、雨水の排水処理を一層効果的にでき、製品の寿命を延ばす利点を有する。
【００３６】
また、この発明の空気調和機の室外ユニットは、上部外気取入れ口と仕切り板の開口とを接続するダクトの下面板を仕切り板から上部外気取入れ口に向かい下り勾配にした構成としたから、雨水の排水処理を一層効果的にでき利点を有する。
【図面の簡単な説明】
【図１】 この発明の実施の形態１による空気調和機の室外ユニット内部部品の配置を示す平面図である。
【図２】 この発明の実施の形態１による空気調和機の室外ユニット内部部品の配置を示す正面図である。
【図３】 この発明の実施の形態１による空気調和機の室外ユニット内部部品の配置を示す要部分解斜視図である。
【図４】 この発明の実施の形態２による空気調和機の室外ユニット内部部品の配置を示す要部分解斜視図である。
【図５】 この発明の実施の形態３による空気調和機の室外ユニット内部部品の配置を示す要部分解斜視図である。
【図６】 この発明の実施の形態３による空気調和機の室外ユニット内部部品の配置を示す要部断面図である。
【図７】 この発明の実施の形態４による空気調和機の室外ユニットのダクトを示す要部拡大断面図である。
【図８】 この発明の実施の形態５による空気調和機の室外ユニットのダクトを示す要部拡大断面図である。
【図９】 この発明の実施の形態６による空気調和機の室外ユニットのダクトを示す要部拡大断面図である。
【図１０】 この発明の実施の形態７による空気調和機の室外ユニット内部部品の配置を示す平面図である。
【図１１】 この発明の実施の形態８による空気調和機の室外ユニットを示す要部分解斜視図である。
【図１２】 この発明の実施の形態８による空気調和機の室外ユニットを示す要部断面図である。
【図１３】 この発明の実施の形態９による空気調和機の室外ユニットを示す要部分解斜視図である。
【図１４】 この発明の実施の形態９による空気調和機の室外ユニットを示す要部断面図である。
【図１５】 従来の空気調和機の室外ユニット内部部品の配置を示す平面図である。
【図１６】 従来の空気調和機の室外ユニット内部部品の配置を示す正面図である。
【符号の説明】
１ 室外ユニット本体、２ 仕切り板、４ 送風機、５ 熱交換器、６ 前面グリル、７ 送風機室、８ 電気品箱体、９ 機械室、１０ 放熱板、１１ 圧縮機、１４ 点検パネル、１５ 下部外気取入れ口、１６ 上部外気取入れ口、１７ 背面パネル、１８ 制御基板、１９ 電気品開口、２０ ダクト、２０ｂ ダクト下面板、２０ｃ 雨水排水口、２１ 仕切板開口、２２ ダクト側面開口、２３ ダクト上部開口、２４ 風路カバ−、２５ 排気口、２６ 背面外気取入れ口、２７ 背面外気風ダクト、２８ 切起こし外気取入れ口、２９ 背面パネル開口、３０ 長穴外気取入れ口、３１ フランジ開口。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cooling device for electrical products in an outdoor unit of an air conditioner.
[0002]
[Prior art]
FIG. 15 is a plan view showing the arrangement of outdoor unit internal parts of a conventional air conditioner, and FIG. 16 is a front view showing the arrangement of outdoor unit internal parts of the air conditioner. In the figure, 1 is an outdoor unit body of an air conditioner, 2 is a blower chamber 7 in which a propeller fan 4 and a fan motor 5 for driving a fan are arranged on the front surface of a heat exchanger 3, and a grill 6 is provided on the front surface thereof. A partition plate 10, which is partitioned into a machine room 9 in which an electrical component box 8 that houses an electrical component 8 a for controlling the outdoor unit is disposed, faces the blower chamber 7 side of the electrical component box 8. A heat dissipating plate 11 for dissipating electrical products disposed on the left side, 11 is a compressor disposed on the bottom plate 12 in the lower part of the machine room 9, and an indoor unit (not shown) and a refrigerant are connected to the right side. An internal / external connection 13 is provided. An inspection panel 14 has a lower outside air intake 15 corresponding to the inner / outer connection portion 13 at the lower portion.
[0003]
Next, the operation will be described. The heat dissipation path of the components inside the electric box 8 takes in the outside air from the outside air intake 15 on the right side surface of the outdoor unit by the negative pressure generated by the propeller fan 4 and the fan motor 5, and the electric box It passes through the inside of the body 8. At this time, the hot air that has cooled and heat-exchanged the electrical components is discharged to the blower chamber 7, passes through the heat exchanger 3, is heat-exchanged, hits the radiator plate 10, is cooled, and is discharged outside the outdoor unit 1.
[0004]
Further, a technique for improving the cooling efficiency of an electrical product by disposing a heat sink on the back surface of the electrical product and ejecting air from the inside or outside of the room from a small hole provided in the duct via the duct toward the heat sink is disclosed in Japanese Patent Application Laid-Open No. 05-2005. No. 333174.
[0005]
Further, in order to increase the cooling efficiency of the air conditioner outdoor unit equipped with the inverter, a technique for guiding the heat generation to the outside of the partition plate through the heat pipe and cooling the cooling fin provided on the outside by air blowing is disclosed in JP-A-01- This is disclosed in Japanese Patent No. 208626.
[0006]
[Problems to be solved by the invention]
The conventional outdoor unit of an air conditioner uses the heat exchange outside air that has passed through the heat exchanger to cool the heat sink, so the outside air is heat-exchanged and warmed by the heat exchanger, and the heat sink is cooled. When doing so, there is a problem that the temperature rises from the state before passing through the heat exchanger and the cooling efficiency of the heat radiating plate is lowered, shortening the life of the electrical product.
[0007]
In addition, the heat radiating plate must be arranged in the air passage passing through the heat exchanger, and there is a problem that the arrangement position of the electric parts cannot be freely selected and is limited.
[0008]
An object of the present invention is to improve the cooling efficiency of the heat radiating plate, extend the life of the electrical product, and freely select the arrangement position of the electrical component.
[0009]
[Means for Solving the Problems]
An outdoor unit of an air conditioner according to the present invention has a blower disposed in front of a heat exchanger provided in a blower chamber, and is partitioned into a machine chamber provided with a compressor and the blower chamber by a partition plate, In an outdoor unit having a box body for storing the product, a heat sink for cooling the electrical product in the electrical product box, and having an intake port by outside air, a duct that covers the periphery of the heat sink and allows the outside air to flow. Connecting the opening provided in the right side surface of the outdoor unit main body and the partition plate leading to the blower chamber, and connecting the exhaust port provided in the vicinity of the control board of the electrical component box and the upper opening of the duct. The air path cover that forms the air path is provided .
[0010]
In the outdoor unit of the air conditioner of the present invention, the lower surface plate of the duct connecting the upper outside air inlet and the opening of the partition plate is inclined downward toward the partition plate.
[0011]
The outdoor unit of the air conditioner according to the present invention is such that a rainwater drainage port is provided on a lower plate of a duct connecting an upper outside air intake port and an opening of a partition plate.
[0012]
In the outdoor unit of the air conditioner according to the present invention, the lower surface plate of the duct connecting the upper outside air intake and the opening of the partition plate is inclined downward from the partition plate toward the upper outside air intake.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
Hereinafter, the outdoor unit of the air conditioner which is Embodiment 1 shown in FIG. 1 thru | or FIG. 3 is demonstrated. FIG. 1 is a plan view showing an arrangement of outdoor unit internal parts of an air conditioner according to Embodiment 1 of the present invention, and FIG. 2 is a front view showing an arrangement of outdoor unit internal parts of the air conditioner according to Embodiment 1 of the present invention. 3 is an enlarged perspective view of a main part showing the arrangement of the outdoor unit internal parts of the air conditioner according to Embodiment 1 of the present invention. In the figure, 1 is an outdoor unit body of an air conditioner, 2 is a blower chamber 7 in which a propeller fan 4 and a fan motor 5 for driving a fan are arranged on the front surface of a heat exchanger 3, and a grill 6 is provided on the front surface thereof. And a partition plate 10 divided into a machine room 9 in which an electrical product box 8 for housing an electrical product 8a for controlling the outdoor unit is disposed, 10 is a heat radiating plate for radiating electrical products, and 11 is the machine room. 9 is a compressor disposed on the bottom plate 12 at the lower part of FIG. 9, and an inner / outer connection part 13 connected to an indoor unit (not shown) by a refrigerant pipe is provided on the right side surface.
[0015]
An inspection panel 14 has a lower outside air intake 15 corresponding to the inner / outer connection portion 13 and an upper outside air inlet 16 corresponding to the electrical box 8 at the upper portion. Reference numeral 17 denotes a back panel that forms the back surface of the outdoor unit main body 1 of the air conditioner, and forms a part of the back and side surfaces of the machine room 9. Reference numeral 18 denotes a control board for controlling the operation of the air conditioner, and a heat radiating plate 10 for radiating power supply system control elements is discharged and arranged on the back of the electrical component box 8 on the back. 19 is an electrical product opening provided on the side surface of the electrical product box 8, 20 is a duct that is installed in the left and right direction on the back of the electrical product box 8, and covers the periphery of the radiator plate 10. It arrange | positions so that the opening | mouth 16 and the partition plate opening 21 connected to the said air blower chamber 7 provided in the said partition plate 2 may be connected.
[0016]
Next, the operation of the cooling air will be described. First, in cooling the heat radiating plate 10, the outside air wind A passes through the inside of the duct 20 from the upper outside air intake 16 of the inspection panel 14, and then the heat radiating plate 6 is deprived of heat and discharged from the partition plate opening 21 to the blower chamber 7. Is done.
[0017]
In cooling the electrical box 8, the electrical cooling air B is taken into the outdoor unit through the lower outside air intake 15 provided at the lower part of the inspection panel 14 of the machine room 9, and is connected to the indoor unit. 13 passes through the electrical product opening 19 provided on the side surface of the electrical product box 8 to the interior of the electrical product 8a. At this time, the heat inside the electrical product 8a is taken and the components are cooled.
[0018]
Embodiment 2. FIG.
4 is an enlarged perspective view of a main part showing the arrangement of the outdoor unit internal parts of the air conditioner according to Embodiment 2 of the present invention. In the figure, reference numeral 22 denotes a duct side opening provided in the duct side plate 20a of the electric component opening 19 of the electric component box 8.
[0019]
Next, the operation of the cooling air according to the second embodiment will be described. First, in cooling the heat radiating plate 10, the outdoor air A directly passes through the inside of the duct 20 from the upper outside air intake 16, and at that time, the heat of the heat radiating plate 10 is taken and discharged from the partition plate opening 21 to the blower chamber 7. The electric product cooling air B is taken into the outdoor unit from the lower outside air inlet 15 provided at the lower part of the inspection panel 14 of the machine room 9, passes through the inner / outer connection part 13 connected to the indoor unit, and passes through the electric product box 8. At the same time, a part of the wind just before entering the electrical component opening 19 is diverted from the duct side opening 22 into the duct 15. Then, the outside air wind A and the inside of the duct 20 are merged and passed to increase the air volume, so that the heat radiation of the heat radiating plate 6 is further promoted and the cooling efficiency is improved.
[0020]
Embodiment 3 FIG.
FIG. 5 is an enlarged perspective view of a main part showing the arrangement of outdoor unit internal parts of an air conditioner according to Embodiment 3 of the present invention, and FIG. 6 is a cross-sectional view of FIG. In the drawing, reference numeral 23 denotes a duct upper opening provided at the upper position of the heat sink 10 of the duct 20, 24 covers the duct upper opening 23, and an exhaust port 25 provided in the upper rear portion of the electrical component box 8 forms an air passage to be connected. It is a wind path cover.
[0021]
Next, the operation of the cooling air according to the third embodiment will be described. The electric component cooling air B passes through the exhaust port 23, passes through the air passage formed by the air passage cover 22, passes through the duct upper opening 21, and passes through the duct 15 to the heat exchanger chamber, and is discharged from the grill 4 to the outside of the outdoor unit. Is done. Since the exhaust port 25 is provided in the vicinity of the control board 14, the electrical component cooling air B flows along the control board 18, so that the power supply control system components mounted on the control board 18 are cooled.
[0022]
According to the third embodiment, the electronic control component mounted on the control board 18 and generating heat is reliably cooled by passing the cooling air B through the cooling of the component. Advantages such as eliminating failure or destruction and extending the life of the electronic component occur.
[0023]
Embodiment 4 FIG.
FIG. 7 is an enlarged sectional view of a main part showing a duct portion of an outdoor unit of an air conditioner according to Embodiment 4 of the present invention. In the figure, 2 is a partition plate, 16 is an upper outside air intake provided in the inspection panel 14, 17a is an outside air opening provided on the side of the back panel 17 corresponding to the upper outside air inlet 16, 20a Is a duct lower surface plate that constitutes the lower surface of the duct 20, and is inclined downward at an angle A ° toward the partition plate 2 in the attached state.
[0024]
The operation according to the fourth embodiment will be described. In order to cool the heat radiating plate 10, the outside air wind 16 is taken into the duct 20 from the outside air port 17 a through the upper outside air intake port 16. Therefore, rainwater and the like enter the duct 20 from the upper outside air intake 16 of the inspection panel 14 together with the outside air wind A. Therefore, rainwater or the like that has entered the inside of the duct 20 flows on the surface of the lower surface plate 20a of the duct 20 and is drained to the blower chamber 7 side, falls to the bottom plate 12 on the lower surface of the outdoor unit, and then out of the outdoor unit 1 together with the condensed water. Or discharged to the outside of the outdoor unit 1 by being blown by a blowing airflow.
[0025]
Embodiment 5 FIG.
FIG. 8 is an enlarged sectional view of a main part showing a duct portion of an outdoor unit of an air conditioner according to Embodiment 5 of the present invention. In the figure, reference numeral 20c denotes a rainwater drainage port provided in a duct lower surface plate 20b having a downward slope constituting the lower surface of the duct 20, and is formed near the upper outside air intake port 16 side of the inspection panel 14.
Then, the rainwater 24 that has entered is drained immediately, the amount of rainwater that accumulates inside the duct 20 is reduced, and air is drawn into the duct 20 from the rainwater drainage port 20c and used as cooling air for the radiator plate 6.
[0026]
Embodiment 6 FIG.
FIG. 9 is an enlarged sectional view of a main part showing a duct portion of an outdoor unit of an air conditioner according to Embodiment 6 of the present invention. In the fifth embodiment, the lower surface plate 20b of the duct 20 is inclined downward at an angle A ° toward the fan chamber 7 side. However, in the sixth embodiment of the present invention, conversely, from the fan chamber 7 side to the inspection panel 14 side. A downward slope with a slope of angle A ° toward the top.
[0027]
In this case, rainwater that has entered the inside of the duct 20 is transmitted to the outer surface of the rear panel 17 through the lower surface plate 20b of the duct 20, and is drained from the bottom plate 12 that is the lower surface of the outdoor unit to the outside of the outdoor unit.
[0028]
Embodiment 7 FIG.
FIG. 10 is a plan view showing the arrangement of the components inside the outdoor unit of the air conditioner according to Embodiment 7 of the present invention. In the first to third embodiments, the device for taking outside air from the left side surface of the inspection panel 14 and cooling the heat radiating plate 10 via the duct 20 has been described. However, outside air is drawn from the back side of the outdoor unit 1 from the back side. May be incorporated. In FIG. 10, reference numeral 26 denotes a back surface outside air inlet provided in the back panel 17, and 27 denotes a back surface outside air duct provided by connecting the back surface outside air inlet 26 and the partition plate opening 21 formed in the partition plate 2. Then, the outside air A flows inside the duct and cools the heat sink 10.
[0029]
Embodiment 8 FIG.
11 is an enlarged perspective view of a main part showing an outdoor unit of an air conditioner according to Embodiment 8 of the present invention, and FIG. 12 is an enlarged cross-sectional view of the main part of FIG. In the figure, reference numeral 28 denotes a cut-and-raised outside air inlet provided on the right side surface of the inspection panel 14, and the cut-and-raised piece 28a opens upward on the inside. The outside air A for cooling the heat sink 10 is taken into the duct 20 from here. Reference numeral 29 denotes a rear panel opening provided on the right side surface of the rear panel 17 that is positioned on the inner surface side of the outdoor unit so as to oppose the cut-and-raised outside air inlet 28 of the inspection panel 14.
[0030]
Next, the operation will be described. Since the cut-and-raised outside air inlet 28 is opened above the inner surface of the outdoor unit 1, the rain air can be taken into the outside unit without entering the outdoor unit 1, and the opening hole is viewed from the front. Because it is difficult to see, it is also aesthetically pleasing.
[0031]
Embodiment 9 FIG.
13 is an exploded perspective view showing a main part of an outdoor unit of an air conditioner according to Embodiment 9 of the present invention, and FIG. 14 is a side sectional view of FIG. In the figure, 30 is a long hole outside air intake provided on the right side surface of the inspection panel 14, and 31 is a flange opening provided on the right side surface of the back panel 10 so as to oppose this long hole outside air intake port. The outer peripheral end surface of the flange opening 31 is raised toward the inspection panel 14, and rainwater transmitted through the surface of the back panel 17 prevents the inside of the duct 20 from entering from the flange opening 31.
[0032]
Next, the long hole outside air intake 30 of the inspection panel 14 is located on the inner surface side of the outdoor unit, and when the opening positions of the outside air intake 30 and the flange opening 31 are viewed from the front in the vertical direction, the holes are not visible. Since the hole positions of the long hole outside air intake 30 and the flange opening 31 are shifted, rainwater can be taken into the inside without directly entering the outdoor unit 1, and the long hole outside air intake 30 When the flange opening 31 is viewed from the front, it does not overlap and is difficult to see.
[0033]
【The invention's effect】
As described above, the outdoor unit of the air conditioner of the present invention has a blower disposed on the front surface of the heat exchanger provided in the blower chamber, and is partitioned into a machine room provided with a compressor by the partition plate and the blower room, An outdoor unit comprising a box body for storing electrical items in the machine room, a heat radiating plate for cooling the electric items in the electric box, and having an intake port by outside air. The duct for ventilating is arranged so as to connect the opening provided in the right side surface of the outdoor unit main body and the partition plate leading to the blower chamber, and the exhaust port provided in the vicinity of the control board of the electrical component box and the duct Since the air passage cover that forms the air passage by connecting with the upper opening of the is provided, the outside air that cools the heat sink can be used directly without a heat exchanger, improving the cooling efficiency, Parts placement There is an advantage that the degree of freedom increases, the efficiency of storing parts of the outdoor unit is improved, the size can be reduced, the cooling efficiency of the power supply control system parts mounted on the control board is improved, and the life of the electrical product can be extended. Have.
[0034]
In addition, the outdoor unit of the air conditioner of the present invention has a configuration in which the lower surface plate of the duct connecting the upper outside air intake and the opening of the partition plate is inclined downward toward the partition plate, so that the drainage treatment of rainwater is performed. It is easy, can suppress the oxidation of sheet metal parts, and has the advantage that the product can be used for a long time.
[0035]
In addition, the outdoor unit of the air conditioner of the present invention has a configuration in which the rainwater drainage port is provided on the lower surface plate of the duct connecting the upper outside air intake and the opening of the partition plate, so that the rainwater drainage treatment is more effective. And has the advantage of extending the life of the product.
[0036]
Further, the outdoor unit of the air conditioner of the present invention has a configuration in which the lower surface plate of the duct connecting the upper outside air intake and the opening of the partition plate is inclined downward from the partition plate toward the upper outside air intake. The waste water treatment can be made more effective and has the advantage.
[Brief description of the drawings]
FIG. 1 is a plan view showing an arrangement of components inside an outdoor unit of an air conditioner according to Embodiment 1 of the present invention.
FIG. 2 is a front view showing the arrangement of components inside the outdoor unit of the air conditioner according to Embodiment 1 of the present invention.
FIG. 3 is an exploded perspective view of a main part showing the arrangement of outdoor unit internal components of the air conditioner according to Embodiment 1 of the present invention.
FIG. 4 is an exploded perspective view of a main part showing the arrangement of outdoor unit internal parts of an air conditioner according to Embodiment 2 of the present invention.
FIG. 5 is an exploded perspective view of main parts showing the arrangement of outdoor unit internal components of an air conditioner according to Embodiment 3 of the present invention.
FIG. 6 is a cross-sectional view of a main part showing the arrangement of outdoor unit internal parts of an air conditioner according to Embodiment 3 of the present invention.
FIG. 7 is an enlarged sectional view of a main part showing a duct of an outdoor unit of an air conditioner according to Embodiment 4 of the present invention.
FIG. 8 is an enlarged cross-sectional view of a main part showing a duct of an outdoor unit of an air conditioner according to Embodiment 5 of the present invention.
FIG. 9 is an essential part enlarged cross-sectional view showing a duct of an outdoor unit of an air conditioner according to Embodiment 6 of the present invention;
FIG. 10 is a plan view showing an arrangement of components inside an outdoor unit of an air conditioner according to Embodiment 7 of the present invention.
FIG. 11 is an exploded perspective view of a main part showing an outdoor unit of an air conditioner according to Embodiment 8 of the present invention.
FIG. 12 is a cross-sectional view showing a main part of an outdoor unit of an air conditioner according to Embodiment 8 of the present invention.
FIG. 13 is an exploded perspective view showing a main part of an outdoor unit of an air conditioner according to Embodiment 9 of the present invention.
FIG. 14 is a cross-sectional view showing a main part of an outdoor unit of an air conditioner according to Embodiment 9 of the present invention.
FIG. 15 is a plan view showing the arrangement of internal parts of an outdoor unit of a conventional air conditioner.
FIG. 16 is a front view showing an arrangement of components inside an outdoor unit of a conventional air conditioner.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outdoor unit main body, 2 Partition plate, 4 Blower, 5 Heat exchanger, 6 Front grille, 7 Blower room, 8 Electrical box, 9 Machine room, 10 Heat sink, 11 Compressor, 14 Inspection panel, 15 Lower outside air Inlet, 16 Upper outside air inlet, 17 Rear panel, 18 Control board, 19 Electrical opening, 20 Duct, 20b Duct bottom plate, 20c Rainwater drain, 21 Partition opening, 22 Duct side opening, 23 Duct upper opening, 24 Air channel cover, 25 Exhaust port, 26 Rear outside air intake port, 27 Rear outside air duct, 28 Cut-out outside air inlet port, 29 Rear panel opening, 30 Long hole outside air inlet port, 31 Flange opening

Claims (4)

送風機室に設けた熱交換器の前面に送風機を配置し、仕切り板により圧縮機を備える機械室と前記送風機室とに区画し、前記機械室に電気品を収納する箱体を備え、この電気品箱体内の電気品を冷却する放熱板を配置し外気により取入れ口を備えた室外ユニットにおいて、前記放熱板の周囲を覆い外気風を通過させるダクトを、室外ユニット本体の右側面と送風機室に通じる仕切り板とに設けた開口を接続するよう配置するとともに、前記電気品箱体の制御基板の近傍に設けられた排気口と前記ダクトの上部開口とを接続して風路を形成する風路カバーを設けたことを特徴とする空気調和機の室外ユニット。  A blower is disposed in front of a heat exchanger provided in the blower room, and is partitioned into a machine room provided with a compressor by a partition plate and the blower room, and a box body for storing electrical components is provided in the machine room. In an outdoor unit equipped with a heat sink for cooling the electrical components in the product box and provided with an intake port by outside air, a duct that covers the periphery of the heat sink and allows the outside air to pass through is provided on the right side of the outdoor unit body and the blower chamber. An air passage that is arranged so as to connect an opening provided in a partition plate that communicates with the exhaust plate and that connects an exhaust port provided in the vicinity of the control board of the electrical component box and an upper opening of the duct to form an air passage. An outdoor unit of an air conditioner characterized in that a cover is provided. 上部外気取入れ口と仕切り板の開口とを接続するダクトの下面板を仕切り板に向けて下り勾配にしたことを特徴とする請求項１記載の空気調和機の室外ユニット。  The outdoor unit of an air conditioner according to claim 1, wherein the lower surface plate of the duct connecting the upper outside air intake and the opening of the partition plate is inclined downward toward the partition plate. 上部外気取入れ口と仕切り板の開口とを接続するダクトの下面板に雨水排水口を設けたことを特徴とする請求項１記載の空気調和機の室外ユニット。  The outdoor unit for an air conditioner according to claim 1, wherein a rainwater drainage port is provided on a lower plate of a duct connecting the upper outside air intake port and the opening of the partition plate. 上部外気取入れ口と仕切り板の開口とを接続するダクトの下面板を仕切り板から上部外気取入れ口に向かい下り勾配にしたことを特徴とする請求項１記載の空気調和機の室外ユニット。  2. The outdoor unit of an air conditioner according to claim 1, wherein a lower surface plate of a duct connecting the upper outside air inlet and the opening of the partition plate is inclined downward from the partition plate toward the upper outside air inlet.
JP07910099A 1999-03-24 1999-03-24 Air conditioner outdoor unit Expired - Lifetime JP4305999B2 (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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JP4305999B2 true JP4305999B2 (en) 2009-07-29

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Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003139354A (en) * 2001-10-30 2003-05-14 Toshiba Kyaria Kk Outdoor machine of air conditioner
CN1299067C (en) * 2002-11-26 2007-02-07 乐金电子(天津)电器有限公司 Outdoor unit for split aor conditioner
EP1684022B1 (en) * 2003-09-25 2017-06-21 Toshiba Carrier Corporation Outdoor unit of air conditioner
JP4835115B2 (en) * 2005-11-07 2011-12-14 ダイキン工業株式会社 Electrical component assembly and outdoor unit of air conditioner including the same
JP5425524B2 (en) * 2009-05-20 2014-02-26 三洋電機株式会社 Outdoor unit
JP5653313B2 (en) * 2011-07-27 2015-01-14 三菱電機株式会社 Air conditioner outdoor unit
JP5482780B2 (en) * 2011-12-28 2014-05-07 パナソニック株式会社 Air conditioner outdoor unit
JP6011669B1 (en) * 2015-03-31 2016-10-19 ダイキン工業株式会社 Outdoor unit
JP6387527B2 (en) * 2015-06-29 2018-09-12 パナソニックＩｐマネジメント株式会社 Air conditioner outdoor unit
JP6463483B2 (en) * 2015-07-31 2019-02-06 三菱電機株式会社 Air conditioner outdoor unit
JP2017172930A (en) * 2016-03-25 2017-09-28 東芝キヤリア株式会社 Outdoor machine of refrigeration cycle device
US10731875B2 (en) * 2016-05-12 2020-08-04 Mitsubishi Electric Corporation Outdoor unit of air-conditioning apparatus

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