JP2004028450A

JP2004028450A - Air conditioner

Info

Publication number: JP2004028450A
Application number: JP2002185509A
Authority: JP
Inventors: Yoshihiro Tanabe; 田邉　義浩
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2002-06-26
Filing date: 2002-06-26
Publication date: 2004-01-29
Anticipated expiration: 2022-06-26
Also published as: JP4042480B2

Abstract

<P>PROBLEM TO BE SOLVED: To improve comfortability affected more greatly by indoor temperature or radiant heat of a floor or a wall rather than air current feeling, by considering the radiant heat of the floor or the wall. <P>SOLUTION: When a heating operation and a floor heating operation are performed by an air conditioner, a sensor for detecting or estimating a floor temperature is provided, a set value of the indoor temperature or operation frequency of a compressor is changed in response to the temperature of the sensor for detecting or estimating floor temperature. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
この発明は、床暖房と空気調和機による暖房運転を併用可能とする空気調和装置に関するものである。
【０００２】
【従来の技術】
従来の空気調和機として、図７の特開２０００−５５４４５号公報に示すものを挙げることができる。
図７において、圧縮機、凝縮器としての温水熱交換器、電動膨張弁および蒸発器が環状に接続された冷媒回路と、上記温水熱交換器を介して循環ポンプにより温水が循環する床暖房放熱パネルとを備えている。この空気調和機はヒートポンプにより温水熱交換器で温水を加熱し、その加熱された温水は、温水熱交換器を介して循環ポンプにより床暖房放熱パネルを循環する。
また、この空気調和機は、上記凝縮器として温水熱交換器以外に室内ユニットに室内熱交換器を備え、その室内ユニットの空気調和による暖房運転を床暖房の補助として行う。
【０００３】
この空気調和機は、空気調和による暖房運転の立ち上げ時、室内ユニット用制御装置により、室内に吹出す風量を所定の大風量にした後、室内温度が所定温度以上になると床暖房運転中か否かを判断する。そして、室内ユニット用制御装置は床暖房運転中でないと判断すると、室内ファンによる吹出し風量を所定の小風量にする一方、床暖房運転中であると判断すると、室内ファンによる吹出し風量を所定の小風量よりもさらに小さくするとともに、吹出し口に設けられた水平フラップを水平位置に変更して、温められた空気を水平に吹出す。
【０００４】
【発明が解決しようとする課題】
従来の空気調和機は以上のように、室内ファンの風量の大小変化により、気流感を抑制し快適性を向上するものであった。しかし、人の快適性は気流感よりも室内温度や床または壁の輻射熱に大きく影響される。したがって、従来の空気調和機は室温や床などの輻射熱を考慮していないため、必ずしも快適性が向上するとは言えなかった。例えば室内温度が一定の室内においても、床の温度が高くなれば人が感じる体感温度は上昇するため、室内温度が暖めすぎになり、快適性の悪化に加え、省エネも悪化するという問題があった。
【０００５】
本発明はかかる課題を解決するためになされたもので、空気調和装置に入力する室内設定温度に床暖房放熱パネルによる輻射熱を考慮して設定温度を補正することにより、快適性の向上を図ると共に、省エネ運転を可能とすることを目的とする。
【０００６】
【課題を解決するための手段】
本発明に係る空気調和装置は、室内に配置され室内空気を吸込み吹出す室内ファン、室内空気の温度を検出する室内温度センサおよび室内ユニット用制御装置を有する室内機と、室外に配置され室外ファンと室外ユニット用制御装置を有する室外機と、前記室外機に配設された圧縮機、冷房・暖房切換用の四方弁、室外熱交換器、減圧装置、及び前記室内機に配設された室内熱交換器を冷媒配管で接続し冷媒を循環させる冷媒回路と、前記冷媒回路に流れる冷媒とブラインまたは水とを熱交換させる温水熱交換器、床暖房放熱パネル、水タンクそして循環ポンプを温水配管で接続しブラインまたは水を循環させる水回路とからなる空気調和装置において、室内の床面上に載置され床暖房を行う床暖房放熱パネルの温度を検出または推定する第２温度センサを設け、該第２温度センサにより検出または推定した床暖房放熱パネルの温度に応じて室内の設定温度を変えるものである。
【０００７】
また、本発明に係る空気調和装置は、室内に配置され室内空気を吸込み吹出す室内ファン、室内空気の温度を検出する室内温度センサおよび室内ユニット用制御装置を有する室内機と、室外に配置され室外ファンと室外ユニット用制御装置を有する室外機と、前記室外機に配設された圧縮機、冷房・暖房切換用の四方弁、室外熱交換器、減圧装置、及び前記室内機に配設された室内熱交換器を冷媒配管で接続し冷媒を循環させる冷媒回路と、前記冷媒回路に流れる冷媒とブラインまたは水とを熱交換させる温水熱交換器、床暖房放熱パネル、水タンクそして循環ポンプを温水配管で接続しブラインまたは水を循環させる水回路とからなる空気調和装置において、前記室内機に検出対象物から放射される赤外線量に応じて出力を得る輻射センサを設け、該輻射センサにより検出する輻射熱に応じて室内の設定温度を変えるものである。
【０００８】
また、本発明に係る空気調和装置は、室内ユニット用制御装置または室外ユニット用制御装置に予め室温と床面温度による快適特性データを保有し、検出または推定した前記床暖房放熱パネルの温度または前記輻射熱から室内の設定温度を制御するものである。
【０００９】
また、本発明に係る空気調和装置は、室内の設定温度を、室内温度センサにより検出される現在室温と前記第２温度センサにより検出または推定した床温度の略中間温度、または現在室温と輻射センサにより検出した輻射熱の検出温度の略中間温度に設定するものである。
【００１０】
また、本発明に係る空気調和装置は、使用者が入力する室内の空調を調節する制御情報は、室温と前記床暖房放熱パネルの温度からなる体感温度または床や壁からの輻射熱による体感温度にて設定されるものである。
【００１１】
また、本発明に係る空気調和装置は、床暖房放熱パネルの温度、輻射センサにより検出した輻射熱の温度、または室温の設定温度のうち少なくとも１つを表示する表示部を、室内機またはリモートコントローラに設けたものである。
【００１２】
【発明の実施の形態】
実施の形態１．
以下、この発明の実施の形態１を図１に基づいて説明する。
図１はこの発明による空気調和装置における冷媒回路・水回路の概略構成図である。図において、室外機１０２に備え付けられ、１は圧縮機、２はこの圧縮機１の吐出側に一端が接続され冷房回路と暖房回路とを切り替えるための四方弁、３はこの四方弁２の他端に一端が接続された室外熱交換器、４は室外熱交換器３の他端に一端が接続された絞り装置としてのキャピラリーチューブ、５は減圧装置としての電動膨張弁である。また、室内機１０１に備え付けられた、６は前記電動膨張弁５の他端に接続された室内熱交換器、７は前記逆止弁１０と温水熱交換器２６の他端に四方弁２を介して一端が接続され、他端が圧縮機１の吸入側に接続されたアキュムレータである。
【００１３】
次に、床暖房機１０３に備え付けられ、１０は冷房回路運転時に冷媒を流れるように室内熱交換器６の他端に一端が接続された逆止弁、２５は暖房回路運転時に二段凝縮回路とするために前記室内熱交換器６の他端に一端が接続された絞り装置、１１は暖房回路運転時に通常の一段凝縮回路と床暖房の二段凝縮回路とを切り替えるために前記室内熱交換器６の他端に一端が接続された電磁弁、２６は前記絞り装置２５と電磁弁１１の他端に一端が接続された冷媒と温水との熱交換を行う温水熱交換器である。
また、室外機１０２の冷媒回路を床暖房機１０３とを連結するための配管接続端子部が８ａ、８ｅであり、さらに室内側１０２側とを連結する延長配管を結ぶための配管接続端子部を備えており、ガス冷媒側が８ｂ、８ｃ、そして液冷媒側が８ｄ、８ｆである。
以上のように、室内空気を暖め又は冷却して空気温度を調整するヒートポンプ式空気調和装置に、床面に配設して輻射熱により空調を行う床暖房機能を付加した床暖房付空気調和装置を構成している。
【００１４】
上記室外熱交換器３の近傍には室外空気を流通させるための室外ファン２３及びその駆動用のモータ１９を備えている。
また、上記冷媒回路には冷媒回路の運転状態を把握するために、温水熱交換器２６に設けられた温水熱交換器温度センサ３９、室内熱交換器６に設けられた室内熱交換器温度センサ１７、室外熱交換器３に設けられた室外熱交換器温度センサ２０、圧縮機１から吐出する冷媒温度を検知する吐出温度センサ２２を備えている。そして、冷媒回路を運転するにあたり空調負荷を算出するために室内の温度を検知する室温センサ１６を備えている。
【００１５】
また、上記空気調和装置では床暖房のための水回路も備えている。２７は温水熱交換器２６の水側回路に接続された床暖房放熱パネル、２９は床暖房放熱パネル２７の他端に一端が接続されて回路を循環するブラインまたは水の膨張収縮を吸収するための温水タンク、２８は温水タンク２９と温水熱交換器２６の間の接続配管に設けられた温水循環ポンプである。そして前記温水循環ポンプ２８から流出したブラインまたは水は、温水熱交換器２６の水側回路、床暖房放熱パネル２７、温水タンク２９を順次経て再び温水循環ポンプ２８へ戻る水回路を形成している。
【００１６】
また、床暖房放熱パネル２７と床暖房機１０３との間に、温水配管を室内の床面に設置した床暖房放熱パネルから室外の床暖房機に渡すとともに温水配管を中継するための中継装置３０を備え、この中継装置は室内の壁面または床面に取り付けられている。そして中継装置３０と床暖房機１０３とを連結する延長配管を結ぶための接続配管部が３１ａ，３１ｂであり、前記温水配管用延長銅配管３２ａ，３２ｂは銅配管を用いて接続する仕様である。また、室内側における中継装置３０と床暖房放熱パネル２７とを連結するための接続部が３４ａ，３４ｂ，３４ｃ，３４ｄであり、ここでは架橋ポリエチレン製の配管を使用しているので床暖房パネル２７の移動を可能にしている。
【００１７】
さらに、上記空気調和装置の水回路において、床暖房放熱パネル２７への送り水（またはブライン）の温度を検出する送り水温度センサ３６と、床暖房放熱パネルから温水タンクへ戻ってくる戻り水（またはブライン）の温度を検出する戻り水温度センサ３７を備えている。
【００１８】
また、上記空気調和装置の運転を制御する制御部分は、室内機１０１においては、ワイヤレスリモートコントローラ１３ｄ等からの運転指令情報を入力する入力装置１３ｃ、室内ファン１８や吹出し空気の方向を制御するフラップの駆動を制御するとともに他のユニットへの制御信号を送る室内制御装置１３ａ、さらに床暖房機１０３においては、循環ポンプ２８の駆動や電磁弁１１の開閉動作を制御するとともに他のユニットへの制御信号を送る温水制御装置３５ａ、さらに室外機１０２においては、圧縮機１、四方弁２、電動膨張弁５や室外ファン２３の駆動制御をするとともに他のユニットへの制御信号を送る室外制御装置１４から構成される。
【００１９】
次に、上記構成の空気調和機における動作を説明する。
使用者がワイヤレスリモコン１３ａを操作して送信された運転情報を受信する入力装置１３ｃから運転内容（暖房／冷房／床暖房／暖房＋床暖房の各運転モード等）や設定温度条件、風速条件等の信号を室内制御装置１３ａが受けると、温水制御装置３５ａへ制御信号が送信され、温水制御装置３５ａにおいて運転内容に応じて制御信号が変換された後、前記温水制御装置３５ａから室外制御装置１４へ運転内容に応じて信号が送られ運転が開始される。
【００２０】
ここで、本実施の形態の床暖房付空気調和装置における暖房＋床暖房の運転モードでの動作について説明する。
四方弁２は暖房回路の位置（図１における実線表示位置）に設定され、圧縮機１が運転開始する。圧縮機１から吐出した冷媒は床暖房機１０３に流入するが、逆止弁１０が配設された冷媒配管を通れないので、冷媒と水（ブライン）との熱交換させる温水熱交換器２６を通過する際凝縮して放熱し、電磁弁１１が閉じている時は電磁弁１１と並列に設けられた二段凝縮回路用の絞り装置２５を通って減圧された後、室内熱交換器６で前記温水熱交換器２６よりも低い凝縮温度でさらに凝縮して放熱する。また、電磁弁１１が開いているときは電磁弁１１が配設されているバイパス配管を通って、温水熱交換器２６で凝縮して放熱する。そして、室内熱交換器６から出た冷媒は、電動膨張弁５で膨張した後、室外熱交換器３で蒸発して外気から吸熱し、アキュムレータ７を介して圧縮機１の吸入側に戻っていく。
【００２１】
一方、床暖房機１０３の水回路に配設された温水循環ポンプ２８が運転作動すると、温水タンク２９から水（またはブライン）が温水熱交換器２６に送り込まれ、温水熱交換器２６内で冷媒の凝縮熱で加熱された後、床暖房放熱パネル２７に送り込まれていく。この床暖房放熱パネル２７に送られた加熱ブラインは床暖房放熱パネル２７を加熱することで、床暖房放熱パネルの表面から輻射により室内に放熱した後、温水タンク２９に戻って循環が繰り返される。
【００２２】
また、室外機１０２の圧縮機１の運転周波数は、現在室温とリモートコントロ−ラ１３ｄで入力した室温の設定温度との差をもとに、圧縮機の運転周波数を室内制御装置１３ａで演算され、現在室温が設定温度に未達の状態が大きいほど、つまり温度差が大きいほど、圧縮機１の運転回転数を上昇し能力を高めた運転を行う。そして、現在の室温が設定温度より高くなった場合は、圧縮機１を停止するように制御する。
【００２３】
さらに、水回路の床暖房放熱パネルから戻ってくる温水（ブライン）が流れる配管の接続配管部３１ｂと温水タンク２９の間に設けた戻り水温度センサ３７により床暖房パネルの表面温度を推定し、目標床温度と床暖房放熱パネル２７表面の現在温度との差を、床暖房制御装置３５ａにより演算を行っている。床暖房放熱パネル２７の表面温度が、目標の床温度に未達の状態が大きい場合、つまり温度差が大きい場合、床暖房機１０３内の冷媒回路に設けた電磁弁１１を閉状態にし、冷媒の圧力を高めて温水熱交換器２６を流通する冷媒温度を上昇させることにより温水温度を高めた運転を行う。また、目標床温度との差が小さい場合は、電磁弁１１を開状態にし、温水熱交換器２６を流通する冷媒の圧力をあまり高めずに、室内機の室内熱交換器６内の圧力と同じ冷媒圧力で運転を行う。さらに、床の温度が目標の床温度以上の場合は、水回路の温水循環ポンプ２８を停止して、温水の床暖房放熱パネルへの循環を停止する運転を行う。
【００２４】
上述の制御において、人の体感温度は室温（室内空気温度）のみでなく、床暖房放熱パネル２７の温度により大きく影響される。図２に、室温と床温度の変化に応じて、人が感じる同一快適性となる線の例を示しており、各温度帯で同様な快適性同一ラインがある。この温度関係をもとに、各温度帯で示すことで、人が感じる温度である体感温度が示される。
そして、この室温と床温度との同一快適特性を示すデータを室内制御装置１３ａに記憶しており、戻り水温度センサ３７により検出する温度から推定させる床暖房放熱パネル表面の温度に応じて、室内空気温度の設定温度を自動的に変更することが可能である。
【００２５】
すなわち、床の温度が高い場合は、室温の設定温度を低めに制御を行い、逆に床の温度が低い場合は、室温の設定温度を高めに制御を行う。例えば、暖房運転開始時に床温度が２５℃と低い場合は、室温の設定温度を２３℃に設定して室温を高めて高能力運転を行う。その後、床の温度が３０℃まで上昇してきた場合は、室温の設定温度を２０℃に低めに運転を行う。このような床温度に応じて室温の設定温度を変化させる運転を行うことにより、体感温度を一定に保つことが可能であり、常に快適さが向上するとともに、暖め過ぎを防ぎ無駄な電力消費を抑え省エネ化が図れる。
【００２６】
実施の形態２．
次に、この発明の実施の形態２について説明する。
なお、空気調和装置の構成については上述の図１と同一であり、その説明は省略する。
【００２７】
上記実施の形態１では、床暖房パネルの温度を検出する際、水回路に設けた戻り水温度センサ３７からの検出値をもとに床温度を推定していたが、図１に示すように床暖房放熱パネル２７に内蔵又は表面付設した温度センサ４０を設けることで、直接に床暖房放熱パネルの表面温度を検出してもよい。この場合、床暖房放熱パネル２７の表面温度を直接検出するために、より精度良く体感温度を一定に保つ制御を行うことが可能である。
【００２８】
実施の形態３．
以下、この発明の実施の形態３について図３〜図４をもとに説明する。
なお、空気調和装置の構成については上述の図１と同一であり、その説明は省略する。
【００２９】
上述の実施の形態１および２では、床暖房放熱パネル２７の温度を検出する際に、水回路の戻り水温度センサ３７からの検出値、または直接床暖房放熱パネルの温度センサ４０により温度を検出したが、図３、図４に示すように、室内機に床や壁等の検出対象物から放射される赤外線量に応じた出力を得る積層熱電対である輻射センサ４１を搭載して、制御してもよい。図３は、空気調和装置の室内機の外観図であり、室内機外郭正面のほぼ中央部に輻射センサ４１を搭載し、その近傍に表示部４２を備えた構成となっている。また、この室内機は壁掛型の例であり、このタイプは部屋全体を冷暖房空調するために、壁の上方に据え付けて使用されるので、輻射センサ４１はユニット正面のやや下方を向いた面に設けるのがよい。図４は、本発明の空気調和装置の室内据付けイメージを示す図であり、室内機１０１に搭載した輻射センサ４１により輻射熱を検出できるエリアを点線で示している。図中の２７は床暖房放熱パネル、３０は壁面に設けられ温水配管を床暖房放熱パネルへ中継する中継装置、１３ｄはリモートコントローラである。
この場合、輻射センサ４１は床暖房パネルの温度や、その他の床面や壁面の温度を、輻射熱として非接触で取り込むことができる。そのため、実施の形態１、２で述べた床暖房放熱パネル表面からの温度のみでなく、部屋の温熱環境を幅広く検出するため、より精度よく空調空間に居る人の体感温度を検出することができる。
【００３０】
また、図５は、上記輻射センサ４１の内部構造を示した図である。図において、４６はベース、４４はベースに固定され外郭をなすセンサＣＡＮ、４５はセンサＣＡＮの入射部となる穴に設けられた保護レンズ、４３はセンサＣＡＮの内部にあり保護レンズの後方に配設された積層熱電対である。検出対象物である床面や壁面等から放射される赤外線は、図中の矢印で示すように、保護レンズ４５を通過してセンサＣＡＮ４４の内部へ入射し、積層熱電対４３に到達する。この積層熱電対は放射される赤外線の量に応じた出力を得るはたらきを行い、この出力値により輻射熱量を室内制御装置で演算し、この演算された値を用いて実施の形態１で述べた室温と床暖房放熱パネルとの温度調整を行なうことにより同様の効果が得られる。
【００３１】
実施の形態４．
次に、実施の形態４について説明を行う。
上述の実施の形態１〜３では、室内制御装置に、室内と床温度との同一快適性を示すデータを記憶しており、床の温度に応じて室内空気の設定温度の変更を行っていたが、本実施の形態４では、室内空気温度と床暖房放熱パネルの表面温度との関係から求まる体感温度を演算して運転制御するものである。
室内温度と床温度において、同一の快適性を示し、人が感じる温度である体感温度の関係はおおよそ、体感温度＝（室内温度＋床温度）／２、で示される。従って、この体感温度の関係式を室内制御装置に記憶することで、床の温度に応じて所望する体感温度をもとに室内の設定温度の変更を行う制御でもよい。上記の関係式より、簡単に床温度に応じた設定温度の制御が可能となる。なお、体感温度の関係式で、床温度の代わりに床や壁からの輻射温度を使用してもよい。
【００３２】
実施の形態５．
次に、実施の形態５について説明を行う。なお、空気調和機の構成については上述の図１に示すものと同一のため、その説明は省略する。
前述の実施の形態１では、リモートコントローラ１３ｄ等から室温の設定温度を入力したが、床暖房放熱パネル２７や輻射センサ４１を用いて検出された温度に応じて、人が感じる体感温度が変化するため、設定温度の選定が難しかった。そこで、リモートコントローラに入力する設定温度を室内空気温度と床暖房放熱パネルの温度を考慮した体感温度、または室内温度と床や壁からの輻射温度を考慮した体感温度で設定を行うとともに、床暖房放熱パネルの温度に応じて目標とする室内温度の設定を変化して、常に体感温度を一定とする制御を行う。
【００３３】
床や壁の輻射温度と現在室内温度により体感温度はおおよそ、（床や壁の輻射温度＋現在室温）／２、となる関係がある。例えば、ユーザが好む体感温度設定が２３℃の場合、床の温度が２０℃では、室温は２６℃を目標として運転を行う。さらに、床や壁の輻射温度が２６℃まで上昇した場合は、室温は２０℃を目標に運転を行う。すなわち常に体感温度の一定制御として運転するとともに、リモートコントローラから利用者が所望する体感温度を設定するため、ユーザは簡単に好みの温度設定が容易になる。
【００３４】
また、上述の床暖房付空気調和装置では、室温、床温、体感温度の各値を用いて運転制御するので、図３に示す室内機に設けた表示部４２に、ランプ、ＬＥＤ又は液晶等により前記各値を表示することにより、現在の床温度または輻射熱が一目でわかるとともに、目標とする設定温度や現在室温も表示されるので、空気調和装置の運転状態がわかり、安心して使用できる。このように、使用者の温度に対する認識が向上して使い勝手が向上するとともに、暖めすぎなどによる無駄な運転をなくし省エネを図ることができる。なお、図６に図３で示した室内機本体に設けた表示部４２の表示の具体例を示す。
また、前記表示部４２は室内機本体ばかりでなく、リモートコントローラに設けても同様の効果が得られる。
【００３５】
【発明の効果】
以上のように本発明に係る空気調和装置は、室内に配置され室内空気を吸込み吹出す室内ファン、室内空気の温度を検出する室内温度センサおよび室内ユニット用制御装置を有する室内機と、室外に配置され室外ファンと室外ユニット用制御装置を有する室外機と、前記室外機に配設された圧縮機、冷房・暖房切換用の四方弁、室外熱交換器、減圧装置、及び前記室内機に配設された室内熱交換器を冷媒配管で接続し冷媒を循環させる冷媒回路と、前記冷媒回路に流れる冷媒とブラインまたは水とを熱交換させる温水熱交換器、床暖房放熱パネル、水タンクそして循環ポンプを温水配管で接続しブラインまたは水を循環させる水回路とからなる空気調和装置において、室内の床面上に載置され床暖房を行う床暖房放熱パネルの温度を検出または推定する第２温度センサを設け、該第２温度センサにより検出または推定した床暖房放熱パネルの温度に応じて室内の設定温度を変えるので、体感温度を一定に保つことにより快適性を確保できるとともに、暖めすぎによる無駄な電力消費を抑制して省エネを向上できる効果がある。
【００３６】
また、本発明に係る空気調和装置は、室内に配置され室内空気を吸込み吹出す室内ファン、室内空気の温度を検出する室内温度センサおよび室内ユニット用制御装置を有する室内機と、室外に配置され室外ファンと室外ユニット用制御装置を有する室外機と、前記室外機に配設された圧縮機、冷房・暖房切換用の四方弁、室外熱交換器、減圧装置、及び前記室内機に配設された室内熱交換器を冷媒配管で接続し冷媒を循環させる冷媒回路と、前記冷媒回路に流れる冷媒とブラインまたは水とを熱交換させる温水熱交換器、床暖房放熱パネル、水タンクそして循環ポンプを温水配管で接続しブラインまたは水を循環させる水回路とからなる空気調和装置において、前記室内機に検出対象物から放射される赤外線量に応じて出力を得る輻射センサを設け、該輻射センサにより検出する輻射熱に応じて室内の設定温度を変えるので、部屋の温熱環境を幅広く検出し、より精度よく体感温度を検出して快適性を向上することができる効果がある。
【００３７】
また、本発明に係る空気調和装置は、室内ユニット用制御装置または室外ユニット用制御装置に予め室温と床面温度による快適特性データを保有し、検出または推定した前記床暖房放熱パネルの温度または前記輻射熱から室内の設定温度を制御するので、人（使用者）の感覚温度で部屋の温度を制御するため暖めすぎ、寒すぎを防止して空調空間の快適性が向上する効果が得られる。
【００３８】
また、本発明に係る空気調和装置は、室内の設定温度を、室内温度センサにより検出される現在室温と前記第２温度センサにより検出または推定した床温度の略中間温度、または現在室温と輻射センサにより検出した輻射熱の検出温度の略中間温度に設定するので、簡単に床温度に応じた設定温度の制御が可能となる効果がある。
【００３９】
また、本発明に係る空気調和装置は、使用者が入力する室内の空調を調節する制御情報は、室温と前記床暖房放熱パネルの温度からなる体感温度または床や壁からの輻射熱による体感温度にて設定されので、使用者は体感温度を設定するだけで常に快適な室温に制御を行い、操作性が簡単になる効果が得られる。
【００４０】
また、本発明に係る空気調和装置は、床暖房放熱パネルの温度、輻射センサにより検出した輻射熱の温度、または室温の設定温度のうち少なくとも１つを表示する表示部を、室内機またはリモートコントローラに設けたので、現在の床温度または輻射熱が一目でわかるとともに、空気調和装置の運転状況がわかり、安心して使用できる効果がある。
【図面の簡単な説明】
【図１】本発明の実施の形態１に係わる空気調和装置の冷媒回路及び水回路図である。
【図２】本発明の実施の形態１に係わる空気調和装置による床温度と室内温度の快適線図である。
【図３】本発明の実施の形態１に係わる空気調和装置の外観図である。
【図４】本発明の実施の形態１に係わる空気調和装置の室内据付けイメージ図である。
【図５】本発明の実施の形態１に係わり、空気調和装置に搭載した輻射センサの内部構成図である。
【図６】本発明の実施の形態１に係わり、空気調和装置室内機の表示部の構成図である。
【図７】従来の空気調和機の冷媒回路及び水回路図である。
【符号の説明】
１　圧縮機、２　四方弁、３　室外熱交換器、４　キャピラリーチューブ、５電動膨張弁、６　室内熱交換器、７　アキュムレータ、８　配管接続端子部、９　マフラー、１０　逆止弁、１１　電磁開閉弁、１２　延長銅配管、１３ａ　室内ユニット用制御装置、１３ｂ　配線接続端子部、１４　室外ユニット用制御装置、１５　接続配線、、１６　室内温度センサ、１７　室内熱交換器温度センサ、１８　室内ファン、１９　室内ファンモータ、２０　霜取り検出温度センサ、２１　外気温度センサ、２２　圧縮機吐出温度センサ、２３　室外ファン、２４　室外ファンモータ、２５　絞り装置（二段凝縮回路用）、２６　温水熱交換器、２７　床暖房放熱パネル、２８　温水循環用ポンプ、２９　温水タンク、３０　中継装置、３１　温水配管接続端子部、３２　温水配管用延長銅配管、３３温水配管の延長配管、３４　延長配管接続端子部、３５　床暖房機の温水制御装置、３６　温水制御装置部の配線接続端子部、３７　温水戻り水温度センサ、３８　温水ユニット内の外気温度センサ、３９　温水熱交換器の冷媒温度検知センサ、４０　床暖房放熱パネル温度センサ、４１　輻射センサ、４２　本体表示部、４３　積層熱電対、４４　センサＣＡＮ、４５　保護レンズ、４６　ベース。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an air conditioner that enables both floor heating and heating operation by an air conditioner.
[0002]
[Prior art]
As a conventional air conditioner, an air conditioner shown in JP-A-2000-55445 in FIG. 7 can be mentioned.
In FIG. 7, a refrigerant circuit in which a compressor, a hot water heat exchanger as a condenser, an electric expansion valve, and an evaporator are connected in a ring shape, and floor heating and heat radiation in which hot water is circulated by a circulation pump via the hot water heat exchanger. And a panel. In this air conditioner, hot water is heated by a hot water heat exchanger by a heat pump, and the heated hot water is circulated through a floor heating radiating panel by a circulation pump through the hot water heat exchanger.
In addition, this air conditioner includes an indoor heat exchanger in the indoor unit in addition to the hot water heat exchanger as the condenser, and performs a heating operation by air conditioning of the indoor unit as an aid to floor heating.
[0003]
When starting the heating operation by air conditioning, the air conditioner sets the air volume blown into the room to a predetermined large air volume by the indoor unit control device, and then performs the floor heating operation when the indoor temperature exceeds a predetermined temperature. Determine whether or not. When the indoor unit control device determines that the floor heating operation is not being performed, the blowout air amount by the indoor fan is set to a predetermined small airflow. In addition to making the air volume smaller than the air volume, the horizontal flap provided at the outlet is changed to a horizontal position, and the warmed air is blown out horizontally.
[0004]
[Problems to be solved by the invention]
As described above, the conventional air conditioner suppresses the sense of airflow and improves comfort by changing the air volume of the indoor fan. However, the comfort of a person is more affected by the room temperature and the radiant heat of the floor or wall than the feeling of airflow. Therefore, the conventional air conditioner does not consider the radiant heat of the room temperature, the floor, and the like, so that it cannot be said that the comfort is necessarily improved. For example, even in a room where the indoor temperature is constant, if the temperature of the floor rises, the perceived temperature perceived by a person rises, so that the room temperature becomes too warm, and in addition to the deterioration of comfort, there is a problem that the energy saving also deteriorates. Was.
[0005]
The present invention has been made in order to solve such a problem, and while improving the comfort by correcting the set temperature in consideration of the radiant heat from the floor heating radiator panel to the indoor set temperature input to the air conditioner, The purpose is to enable energy-saving operation.
[0006]
[Means for Solving the Problems]
An air conditioner according to the present invention includes an indoor fan that is arranged indoors and has an indoor fan that sucks and blows indoor air, an indoor temperature sensor that detects the temperature of indoor air, and an indoor unit control device, and an outdoor fan that is arranged outdoors. And an outdoor unit having a controller for the outdoor unit, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a decompression device, and an indoor unit disposed in the indoor unit. A refrigerant circuit for connecting a heat exchanger with a refrigerant pipe and circulating the refrigerant, a hot water heat exchanger for exchanging heat between the refrigerant flowing in the refrigerant circuit and brine or water, a floor heating radiator panel, a water tank, and a circulation pump through a hot water pipe. In the air conditioner comprising a water circuit that circulates and circulates brine or water, the temperature of a floor heating radiating panel that is mounted on the floor surface of the room and performs floor heating is detected or estimated. The temperature sensor is provided, in which changing room set temperature according to the temperature detected or estimated floor heating radiator panel by second temperature sensor.
[0007]
In addition, the air conditioner according to the present invention is disposed indoors and includes an indoor fan having an indoor fan that suctions and blows indoor air, an indoor temperature sensor that detects the temperature of indoor air, and a control device for an indoor unit, and an outdoor unit. An outdoor unit having an outdoor fan and a control device for the outdoor unit, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a decompression device, and disposed in the indoor unit. A refrigerant circuit that connects the indoor heat exchangers with refrigerant pipes to circulate the refrigerant, a hot water heat exchanger that exchanges heat between the refrigerant flowing through the refrigerant circuit and brine or water, a floor heating radiator panel, a water tank, and a circulation pump. In an air conditioner comprising a water circuit connected with a hot water pipe and circulating brine or water, a radiation sensor for obtaining an output in accordance with an amount of infrared radiation radiated from a detection target to the indoor unit. Provided, it is intended to change the indoor set temperature in response to radiant heat detected by the radiation sensor.
[0008]
Further, the air conditioner according to the present invention has the indoor unit control device or the outdoor unit control device previously holds comfort characteristic data based on room temperature and floor surface temperature, and detects or estimates the temperature of the floor heating radiating panel or the temperature. It controls the indoor set temperature from the radiant heat.
[0009]
Further, the air-conditioning apparatus according to the present invention is characterized in that the indoor set temperature is substantially the intermediate temperature between the current room temperature detected by the indoor temperature sensor and the floor temperature detected or estimated by the second temperature sensor, or the current room temperature and the radiation sensor. Is set to a temperature approximately in the middle of the temperature of the radiant heat detected by the above.
[0010]
Further, in the air conditioning apparatus according to the present invention, the control information for adjusting the indoor air conditioning input by the user is based on a sensed temperature including room temperature and the temperature of the floor heating radiating panel or a sensed temperature due to radiant heat from floors and walls. It is set.
[0011]
Further, the air-conditioning apparatus according to the present invention includes a display unit that displays at least one of the temperature of the floor heating radiator panel, the temperature of the radiant heat detected by the radiant sensor, or the set temperature of the room temperature, in the indoor unit or the remote controller. It is provided.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiment 1 FIG.
Hereinafter, a first embodiment of the present invention will be described with reference to FIG.
FIG. 1 is a schematic configuration diagram of a refrigerant circuit and a water circuit in an air conditioner according to the present invention. In the figure, an outdoor unit 102 is provided, 1 is a compressor, 2 is a four-way valve having one end connected to the discharge side of the compressor 1 for switching between a cooling circuit and a heating circuit, and 3 is another four-way valve. An outdoor heat exchanger, one end of which is connected to one end, 4 is a capillary tube as an expansion device, one end of which is connected to the other end of the outdoor heat exchanger 3, and 5 is an electric expansion valve as a decompression device. The indoor unit 101 has an indoor heat exchanger 6 connected to the other end of the electric expansion valve 5, and a four-way valve 2 at the other end of the check valve 10 and the hot water heat exchanger 26. An accumulator is connected at one end through the compressor and the other end is connected to the suction side of the compressor 1.
[0013]
Next, a check valve 10 is provided in the floor heater 103, one end of which is connected to the other end of the indoor heat exchanger 6 so that the refrigerant flows during the cooling circuit operation, and 25 is a two-stage condensation circuit during the heating circuit operation. The expansion device 11 has one end connected to the other end of the indoor heat exchanger 6, and the indoor heat exchanger 11 switches between a normal one-stage condensation circuit and a floor heating two-stage condensation circuit during a heating circuit operation. An electromagnetic valve 26 having one end connected to the other end of the vessel 6 and a hot water heat exchanger 26 for exchanging heat between hot water and a refrigerant having one end connected to the expansion device 25 and the other end of the electromagnetic valve 11.
In addition, the pipe connection terminals for connecting the refrigerant circuit of the outdoor unit 102 to the floor heater 103 are 8a and 8e, and the pipe connection terminals for connecting extension pipes for connecting the indoor circuit 102 side are also provided. 8b and 8c on the gas refrigerant side and 8d and 8f on the liquid refrigerant side.
As described above, a heat pump air conditioner that heats or cools indoor air to adjust the air temperature, an air conditioner with floor heating that has a floor heating function that is arranged on the floor surface and that performs air conditioning by radiant heat is added. Make up.
[0014]
An outdoor fan 23 for circulating outdoor air and a motor 19 for driving the outdoor fan are provided near the outdoor heat exchanger 3.
Further, in order to grasp the operating state of the refrigerant circuit, the refrigerant circuit has a hot water heat exchanger temperature sensor 39 provided in the hot water heat exchanger 26 and an indoor heat exchanger temperature sensor provided in the indoor heat exchanger 6. 17, an outdoor heat exchanger temperature sensor 20 provided in the outdoor heat exchanger 3, and a discharge temperature sensor 22 for detecting the temperature of the refrigerant discharged from the compressor 1. In order to calculate the air-conditioning load when operating the refrigerant circuit, a room temperature sensor 16 for detecting the indoor temperature is provided.
[0015]
The air conditioner also has a water circuit for floor heating. 27 is a floor heating radiator panel connected to the water side circuit of the hot water heat exchanger 26, 29 is connected to the other end of the floor heating radiator panel 27 to absorb the expansion or contraction of brine or water circulating in the circuit. The hot water tank 28 is a hot water circulation pump provided in a connection pipe between the hot water tank 29 and the hot water heat exchanger 26. The brine or water flowing out of the hot water circulation pump 28 forms a water circuit that returns to the hot water circulation pump 28 again through the water side circuit of the hot water heat exchanger 26, the floor heating radiator panel 27, and the hot water tank 29 in this order. .
[0016]
A relay device 30 for transferring hot water piping between the floor heating radiator panel 27 and the floor heater 103 from the floor heating radiator panel installed on the floor in the room to the outdoor floor heater and relaying the hot water piping. And the relay device is attached to a wall surface or a floor surface in a room. The connection pipes for connecting the extension pipes connecting the relay device 30 and the floor heater 103 are 31a and 31b, and the extension copper pipes 32a and 32b for the hot water pipe are designed to be connected using copper pipes. . In addition, connecting portions for connecting the relay device 30 and the floor heating radiating panel 27 on the indoor side are 34a, 34b, 34c, and 34d. Since the pipe made of cross-linked polyethylene is used here, the floor heating panel 27 is used. It is possible to move.
[0017]
Further, in the water circuit of the air conditioner, a feed water temperature sensor 36 for detecting the temperature of feed water (or brine) to the floor heating radiator panel 27, and return water returning from the floor heating radiator panel to the hot water tank ( Or a return water temperature sensor 37 for detecting the temperature of the brine.
[0018]
In the indoor unit 101, the control unit for controlling the operation of the air conditioner includes an input device 13c for inputting operation command information from a wireless remote controller 13d and the like, a flap for controlling the indoor fan 18 and the direction of blown air. In the indoor control device 13a that controls the driving of the unit and sends a control signal to other units, and further in the floor heater 103, the driving of the circulation pump 28 and the opening and closing operation of the solenoid valve 11 are controlled and the control to other units is performed. The hot water control device 35a that sends a signal, and further, in the outdoor unit 102, the outdoor control device 14 that controls the drive of the compressor 1, the four-way valve 2, the electric expansion valve 5, the outdoor fan 23, and sends control signals to other units. Consists of
[0019]
Next, the operation of the air conditioner having the above configuration will be described.
The user operates the wireless remote controller 13a to receive the transmitted operation information. The operation contents (heating / cooling / floor heating / heating + floor heating operation modes, etc.), set temperature conditions, wind speed conditions, and the like are input from the input device 13c. Is received by the indoor control device 13a, a control signal is transmitted to the hot water control device 35a, and the control signal is converted in the hot water control device 35a according to the operation content. A signal is sent according to the operation content to start the operation.
[0020]
Here, an operation in the heating + floor heating operation mode in the air-conditioning apparatus with floor heating according to the present embodiment will be described.
The four-way valve 2 is set at the position of the heating circuit (the position indicated by the solid line in FIG. 1), and the compressor 1 starts operating. Although the refrigerant discharged from the compressor 1 flows into the floor heater 103, it does not pass through the refrigerant pipe in which the check valve 10 is disposed, so that the hot water heat exchanger 26 for exchanging heat between the refrigerant and water (brine) is used. When the electromagnetic valve 11 is closed, the pressure is reduced through the throttle device 25 for the two-stage condensation circuit provided in parallel with the electromagnetic valve 11 when the electromagnetic valve 11 is closed. At the condensing temperature lower than that of the hot water heat exchanger 26, the heat is further condensed and radiated. When the solenoid valve 11 is open, the hot water heat exchanger 26 condenses and radiates heat through a bypass pipe in which the solenoid valve 11 is disposed. The refrigerant flowing out of the indoor heat exchanger 6 expands in the electric expansion valve 5, evaporates in the outdoor heat exchanger 3, absorbs heat from the outside air, and returns to the suction side of the compressor 1 via the accumulator 7. Go.
[0021]
On the other hand, when the hot water circulation pump 28 provided in the water circuit of the floor heater 103 is operated, water (or brine) is sent from the hot water tank 29 to the hot water heat exchanger 26, and the refrigerant in the hot water heat exchanger 26 After being heated by the condensation heat, the heat is sent to the floor heating radiating panel 27. The heating brine sent to the floor heating radiator panel 27 radiates heat from the surface of the floor heating radiator panel into the room by heating the floor heating radiator panel 27, and then returns to the hot water tank 29 to repeat circulation.
[0022]
The operating frequency of the compressor 1 of the outdoor unit 102 is calculated by the indoor controller 13a based on the difference between the current room temperature and the set temperature of the room temperature input by the remote controller 13d. As the state where the current room temperature has not reached the set temperature is larger, that is, as the temperature difference is larger, the operation speed of the compressor 1 is increased to perform the operation with increased performance. Then, when the current room temperature becomes higher than the set temperature, control is performed to stop the compressor 1.
[0023]
Furthermore, the surface temperature of the floor heating panel is estimated by the return water temperature sensor 37 provided between the connection pipe portion 31b of the pipe through which the hot water (brine) returning from the floor heating radiator panel of the water circuit flows and the hot water tank 29, The difference between the target floor temperature and the current temperature on the surface of the floor heating radiator panel 27 is calculated by the floor heating controller 35a. When the state where the surface temperature of the floor heating radiator panel 27 has not reached the target floor temperature is large, that is, when the temperature difference is large, the electromagnetic valve 11 provided in the refrigerant circuit in the floor heater 103 is closed, and the refrigerant is cooled. Is increased to increase the temperature of the refrigerant flowing through the hot water heat exchanger 26, thereby performing the operation of raising the hot water temperature. When the difference from the target bed temperature is small, the solenoid valve 11 is opened, and the pressure in the indoor heat exchanger 6 of the indoor unit is reduced without increasing the pressure of the refrigerant flowing through the hot water heat exchanger 26 so much. Operate at the same refrigerant pressure. Further, when the floor temperature is equal to or higher than the target floor temperature, the operation of stopping the hot water circulation pump 28 of the water circuit and stopping the circulation of the hot water to the floor heating radiator panel is performed.
[0024]
In the above-described control, the human perceived temperature is greatly affected not only by the room temperature (indoor air temperature) but also by the temperature of the floor heating radiating panel 27. FIG. 2 shows an example of lines having the same comfort perceived by a person according to changes in the room temperature and the floor temperature, and there is a similar comfort line in each temperature zone. By indicating in each temperature zone based on this temperature relationship, the sensed temperature which is the temperature felt by a person is indicated.
Then, data indicating the same comfortable characteristics of the room temperature and the floor temperature are stored in the indoor control device 13a, and the indoor control device 13a estimates the room temperature based on the temperature of the floor heating radiating panel surface based on the temperature detected by the return water temperature sensor 37. It is possible to automatically change the set temperature of the air temperature.
[0025]
That is, when the temperature of the floor is high, the set temperature of the room temperature is controlled to be lower, and when the temperature of the floor is low, the control is performed to increase the set temperature of the room temperature. For example, if the floor temperature is as low as 25 ° C. at the start of the heating operation, the room temperature is set to 23 ° C., and the room temperature is raised to perform the high-capacity operation. Thereafter, when the temperature of the bed has risen to 30 ° C., the operation is performed with the set temperature of the room temperature lowered to 20 ° C. By performing the operation of changing the set temperature of the room temperature in accordance with such a floor temperature, it is possible to keep the perceived temperature constant, always improve the comfort, prevent overheating, and reduce wasteful power consumption. It is possible to reduce energy consumption.
[0026]
Embodiment 2 FIG.
Next, a second embodiment of the present invention will be described.
Note that the configuration of the air conditioner is the same as that of FIG. 1 described above, and description thereof will be omitted.
[0027]
In the first embodiment, when the temperature of the floor heating panel is detected, the floor temperature is estimated based on the detection value from the return water temperature sensor 37 provided in the water circuit, but as shown in FIG. By providing a temperature sensor 40 built in or attached to the floor heating radiator panel 27, the surface temperature of the floor heating radiator panel may be directly detected. In this case, since the surface temperature of the floor heating radiating panel 27 is directly detected, it is possible to more accurately perform control for keeping the sensible temperature constant.
[0028]
Embodiment 3 FIG.
Hereinafter, a third embodiment of the present invention will be described with reference to FIGS.
Note that the configuration of the air conditioner is the same as that of FIG. 1 described above, and description thereof will be omitted.
[0029]
In the above first and second embodiments, when detecting the temperature of the floor heating radiating panel 27, the temperature is detected by the detection value from the return water temperature sensor 37 of the water circuit or directly by the temperature sensor 40 of the floor heating radiating panel. However, as shown in FIGS. 3 and 4, the indoor unit is equipped with a radiation sensor 41 that is a laminated thermocouple that obtains an output corresponding to the amount of infrared radiation radiated from a detection target such as a floor or a wall. You may. FIG. 3 is an external view of an indoor unit of the air conditioner, which has a configuration in which a radiation sensor 41 is mounted substantially at the center of the front of the exterior of the indoor unit, and a display unit 42 is provided near the radiation sensor 41. Further, this indoor unit is an example of a wall-mounted type, and this type is used by being installed above a wall for cooling, heating, and air-conditioning the entire room, so that the radiation sensor 41 is provided on a slightly downward surface of the front of the unit. It is good to provide. FIG. 4 is a diagram showing an indoor installation image of the air conditioner of the present invention, in which an area where radiant heat can be detected by the radiation sensor 41 mounted on the indoor unit 101 is indicated by a dotted line. In the figure, 27 is a floor heating radiator panel, 30 is a relay device provided on the wall surface to relay hot water piping to the floor heating radiator panel, and 13d is a remote controller.
In this case, the radiation sensor 41 can contactlessly capture the temperature of the floor heating panel and the temperature of other floors and walls as radiation heat. Therefore, not only the temperature from the floor heating radiating panel surface described in the first and second embodiments but also the temperature environment of the room is widely detected, so that the sensible temperature of the person in the air-conditioned space can be detected with higher accuracy. .
[0030]
FIG. 5 is a diagram showing the internal structure of the radiation sensor 41. In the drawing, 46 is a base, 44 is a sensor CAN fixed to the base and forms an outer shell, 45 is a protective lens provided in a hole serving as an incident portion of the sensor CAN, and 43 is inside the sensor CAN and disposed behind the protective lens. It is a laminated thermocouple installed. Infrared rays radiated from the detection target, such as a floor surface or a wall surface, pass through the protective lens 45 and enter the inside of the sensor CAN 44 as shown by arrows in the figure, and reach the laminated thermocouple 43. The laminated thermocouple performs a function of obtaining an output corresponding to the amount of emitted infrared radiation, calculates the amount of radiant heat by the indoor control device based on the output value, and uses the calculated value as described in Embodiment 1. Similar effects can be obtained by adjusting the temperature between the room temperature and the floor heating radiator panel.
[0031]
Embodiment 4 FIG.
Next, a fourth embodiment will be described.
In the above-described first to third embodiments, the indoor control device stores data indicating the same comfort between the room and the floor temperature, and changes the set temperature of the indoor air according to the floor temperature. However, in the fourth embodiment, the operation is controlled by calculating the sensible temperature obtained from the relationship between the indoor air temperature and the surface temperature of the floor heating radiator panel.
At the room temperature and the floor temperature, the same comfort is exhibited, and the relationship between the sensible temperature, which is the temperature felt by a person, is approximately represented by: sensible temperature = (indoor temperature + floor temperature) / 2. Therefore, by storing the relational expression of the sensible temperature in the indoor control device, the control for changing the set temperature in the room based on the desired sensible temperature according to the floor temperature may be performed. From the above relational expression, it is possible to easily control the set temperature according to the floor temperature. In the relational expression of the perceived temperature, the radiation temperature from the floor or the wall may be used instead of the floor temperature.
[0032]
Embodiment 5 FIG.
Next, a fifth embodiment will be described. Note that the configuration of the air conditioner is the same as that shown in FIG. 1 described above, and a description thereof will be omitted.
In Embodiment 1 described above, the set temperature of room temperature is input from the remote controller 13d or the like, but the sensible temperature felt by a person changes according to the temperature detected using the floor heating radiator panel 27 or the radiation sensor 41. Therefore, it was difficult to select the set temperature. Therefore, the set temperature to be input to the remote controller is set based on the sensible temperature that takes into account the indoor air temperature and the temperature of the floor heating radiating panel, or the sensible temperature that takes into account the indoor temperature and the radiation temperature from the floor and walls. The target room temperature setting is changed in accordance with the panel temperature, and control is performed so that the sensed temperature is always constant.
[0033]
The sensible temperature is approximately (radiation temperature of floor or wall + current room temperature) / 2 based on the radiation temperature of the floor or wall and the current room temperature. For example, when the user's preferred sensible temperature setting is 23 ° C., when the floor temperature is 20 ° C., the operation is performed with a target room temperature of 26 ° C. Further, when the radiation temperature of the floor or the wall rises to 26 ° C., the operation is performed with the target of the room temperature of 20 ° C. That is, the user always operates as constant control of the sensible temperature and sets the sensible temperature desired by the user from the remote controller, so that the user can easily set a desired temperature.
[0034]
In the above-described air-conditioning apparatus with floor heating, the operation is controlled using the room temperature, the floor temperature, and the perceived temperature. Therefore, the display unit 42 provided in the indoor unit shown in FIG. By displaying each of the above values, the current floor temperature or radiant heat can be known at a glance, and the target set temperature and the current room temperature can also be displayed. As described above, the user's recognition of the temperature is improved, the usability is improved, and unnecessary driving due to excessive heating is eliminated, and energy saving can be achieved. FIG. 6 shows a specific example of the display on the display unit 42 provided in the indoor unit main body shown in FIG.
The same effect can be obtained by providing the display unit 42 not only in the indoor unit main body but also in the remote controller.
[0035]
【The invention's effect】
As described above, the air conditioner according to the present invention includes an indoor unit having an indoor fan that is disposed indoors and sucks and blows indoor air, an indoor temperature sensor that detects the temperature of indoor air, and an indoor unit control device. An outdoor unit having an outdoor fan and a control device for the outdoor unit, a compressor, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a pressure reducing device, and an indoor unit. A refrigerant circuit that connects the provided indoor heat exchangers with refrigerant pipes to circulate the refrigerant, a hot water heat exchanger that exchanges heat between the refrigerant flowing through the refrigerant circuit and brine or water, a floor heating radiator panel, a water tank, and circulation. In an air conditioner consisting of a pump and a water circuit that circulates water by connecting a pump with hot water piping, the temperature of a floor heating radiating panel that is placed on the indoor floor and heats the floor is detected or detected. A second temperature sensor for estimating is provided, and the set temperature in the room is changed according to the temperature of the floor heating radiator panel detected or estimated by the second temperature sensor. Therefore, comfort can be secured by keeping the sensed temperature constant and This has the effect of suppressing unnecessary power consumption due to overheating and improving energy saving.
[0036]
In addition, the air conditioner according to the present invention is disposed indoors and includes an indoor fan having an indoor fan that suctions and blows indoor air, an indoor temperature sensor that detects the temperature of indoor air, and a control device for an indoor unit, and an outdoor unit. An outdoor unit having an outdoor fan and a control device for the outdoor unit, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a decompression device, and disposed in the indoor unit. A refrigerant circuit that connects the indoor heat exchangers with refrigerant pipes to circulate the refrigerant, a hot water heat exchanger that exchanges heat between the refrigerant flowing through the refrigerant circuit and brine or water, a floor heating radiator panel, a water tank, and a circulation pump. In an air conditioner comprising a water circuit connected with a hot water pipe and circulating brine or water, a radiation sensor for obtaining an output in accordance with an amount of infrared radiation radiated from a detection target to the indoor unit. Provided, since in accordance with the radiation heat of the sensed radiation sensor changing indoor set temperature, and detect a wide range of room thermal environment, there is an effect capable of improving the comfort and detected more accurately sensible temperature.
[0037]
Further, the air conditioner according to the present invention has the indoor unit control device or the outdoor unit control device previously holds comfort characteristic data based on room temperature and floor surface temperature, and detects or estimates the temperature of the floor heating radiating panel or the temperature. Since the set temperature in the room is controlled from the radiant heat, the temperature of the room is controlled by the temperature sensed by a person (user), so that it is possible to obtain an effect of preventing overheating and cooling, thereby improving the comfort of the conditioned space.
[0038]
Further, the air-conditioning apparatus according to the present invention is characterized in that the indoor set temperature is substantially the intermediate temperature between the current room temperature detected by the indoor temperature sensor and the floor temperature detected or estimated by the second temperature sensor, or the current room temperature and the radiation sensor. Is set to a substantially intermediate temperature of the detected temperature of the radiant heat detected by the above, so that there is an effect that the set temperature can be easily controlled according to the floor temperature.
[0039]
Further, in the air conditioning apparatus according to the present invention, the control information for adjusting the indoor air conditioning input by the user is based on a sensed temperature including room temperature and the temperature of the floor heating radiating panel or a sensed temperature due to radiant heat from floors and walls. Since the setting is performed, the user always controls the room temperature to be comfortable only by setting the sensible temperature, and an effect that operability is simplified can be obtained.
[0040]
Further, the air-conditioning apparatus according to the present invention includes a display unit that displays at least one of the temperature of the floor heating radiator panel, the temperature of the radiant heat detected by the radiant sensor, or the set temperature of the room temperature, in the indoor unit or the remote controller. With the provision, the current floor temperature or radiant heat can be known at a glance, and the operating condition of the air conditioner can be understood, so that there is an effect that the user can use the apparatus with peace of mind.
[Brief description of the drawings]
FIG. 1 is a refrigerant circuit and a water circuit diagram of an air-conditioning apparatus according to Embodiment 1 of the present invention.
FIG. 2 is a comfortable chart of floor temperature and room temperature by the air-conditioning apparatus according to Embodiment 1 of the present invention.
FIG. 3 is an external view of the air conditioner according to Embodiment 1 of the present invention.
FIG. 4 is an indoor installation image diagram of the air-conditioning apparatus according to Embodiment 1 of the present invention.
FIG. 5 is an internal configuration diagram of a radiation sensor mounted on the air-conditioning apparatus according to Embodiment 1 of the present invention.
FIG. 6 is a configuration diagram of a display unit of the air conditioner indoor unit according to Embodiment 1 of the present invention.
FIG. 7 is a refrigerant circuit and a water circuit diagram of a conventional air conditioner.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Compressor, 2 4-way valve, 3 outdoor heat exchanger, 4 capillary tube, 5 electric expansion valve, 6 indoor heat exchanger, 7 accumulator, 8 piping connection terminal part, 9 muffler, 10 check valve, 11 solenoid on-off valve , 12 extended copper pipe, 13a indoor unit control unit, 13b wiring connection terminal unit, 14 outdoor unit control unit, 15 connection wiring, 16 indoor temperature sensor, 17 indoor heat exchanger temperature sensor, 18 indoor fan, 19 indoor Fan motor, 20 Defrost detection temperature sensor, 21 Outdoor temperature sensor, 22 Compressor discharge temperature sensor, 23 Outdoor fan, 24 Outdoor fan motor, 25 Throttling device (for two-stage condensation circuit), 26 Hot water heat exchanger, 27 Floor heating Heat dissipating panel, 28 Hot water circulation pump, 29 Hot water tank, 30 relay device, 31 Hot water piping connection terminal, 32 Extension copper distribution for hot water piping , 33 Extension piping of hot water piping, 34 Extension piping connection terminal, 35 Hot water control unit of floor heater, 36 Wiring connection terminal of hot water control unit, 37 Hot water return water temperature sensor, 38 Outside air temperature sensor in hot water unit , 39 Refrigerant temperature detection sensor of hot water heat exchanger, 40 Floor heating radiant panel temperature sensor, 41 Radiation sensor, 42 Main body display, 43 Stack thermocouple, 44 Sensor CAN, 45 Protective lens, 46 Base.

Claims

室内に配置され室内空気を吸込み吹出す室内ファン、室内空気の温度を検出する室内温度センサおよび室内ユニット用制御装置を有する室内機と、室外に配置され室外ファンと室外ユニット用制御装置を有する室外機と、前記室外機に配設された圧縮機、冷房・暖房切換用の四方弁、室外熱交換器、減圧装置、及び前記室内機に配設された室内熱交換器を冷媒配管で接続し冷媒を循環させる冷媒回路と、前記冷媒回路に流れる冷媒とブラインまたは水とを熱交換させる温水熱交換器、床暖房放熱パネル、水タンクそして循環ポンプを温水配管で接続しブラインまたは水を循環させる水回路とからなる空気調和装置において、室内の床面上に載置され床暖房を行う床暖房放熱パネルの温度を検出または推定する第２温度センサを設け、該第２温度センサにより検出または推定した床暖房放熱パネルの温度に応じて室内の設定温度を変えることを特徴とする空気調和装置。An indoor fan that is disposed indoors and sucks and blows indoor air, an indoor unit that has an indoor temperature sensor that detects the temperature of indoor air, and an indoor unit controller, and an outdoor that is installed outdoors and has an outdoor fan and an outdoor unit controller Unit, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a decompression device, and an indoor heat exchanger disposed in the indoor unit connected by refrigerant piping. A refrigerant circuit for circulating the refrigerant, a hot water heat exchanger for exchanging heat between the refrigerant flowing through the refrigerant circuit and brine or water, a floor heating radiator panel, a water tank, and a circulation pump are connected by hot water piping to circulate the brine or water. An air conditioner comprising a water circuit, a second temperature sensor for detecting or estimating a temperature of a floor heating radiating panel mounted on a floor in the room and performing floor heating; Air conditioning apparatus characterized by changing the indoor set temperature depending on the temperature detected or estimated floor heating radiator panel by the sensor.

室内に配置され室内空気を吸込み吹出す室内ファン、室内空気の温度を検出する室内温度センサおよび室内ユニット用制御装置を有する室内機と、室外に配置され室外ファンと室外ユニット用制御装置を有する室外機と、前記室外機に配設された圧縮機、冷房・暖房切換用の四方弁、室外熱交換器、減圧装置、及び前記室内機に配設された室内熱交換器を冷媒配管で接続し冷媒を循環させる冷媒回路と、前記冷媒回路に流れる冷媒とブラインまたは水とを熱交換させる温水熱交換器、床暖房放熱パネル、水タンクそして循環ポンプを温水配管で接続しブラインまたは水を循環させる水回路とからなる空気調和装置において、前記室内機に検出対象物から放射される赤外線量に応じて出力を得る輻射センサを設け、該輻射センサにより検出する輻射熱に応じて室内の設定温度を変えることを特徴とする空気調和装置。An indoor fan that is disposed indoors and sucks and blows indoor air, an indoor unit that has an indoor temperature sensor that detects the temperature of indoor air, and an indoor unit controller, and an outdoor that is installed outdoors and has an outdoor fan and an outdoor unit controller Unit, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a decompression device, and an indoor heat exchanger disposed in the indoor unit connected by refrigerant piping. A refrigerant circuit for circulating the refrigerant, a hot water heat exchanger for exchanging heat between the refrigerant flowing through the refrigerant circuit and brine or water, a floor heating radiator panel, a water tank, and a circulation pump are connected by hot water piping to circulate the brine or water. In an air conditioner including a water circuit, a radiation sensor for obtaining an output in accordance with an amount of infrared radiation radiated from a detection target is provided in the indoor unit, and detection is performed by the radiation sensor. Air conditioning apparatus characterized by changing the indoor set temperature in accordance with the morphism heat.

前記室内ユニット用制御装置または室外ユニット用制御装置に予め室温と床面温度による快適特性データを保有し、検出または推定した前記床暖房放熱パネルの温度または前記輻射熱から室内の設定温度を制御することを特徴とする請求項１または２記載の空気調和装置。The indoor unit control device or the outdoor unit control device holds comfort characteristic data based on room temperature and floor surface temperature in advance, and controls the indoor set temperature from the detected or estimated temperature of the floor heating radiator panel or the radiant heat. The air conditioner according to claim 1 or 2, wherein:

室内の設定温度を、前記室内温度センサにより検出される現在室温と前記第２温度センサにより検出または推定した床温度の略中間温度、または前記現在室温と前記輻射センサにより検出した輻射熱の検出温度の略中間温度に設定することを特徴とする請求項１または２記載の空気調和装置。The set temperature of the room is a substantially intermediate temperature between the current room temperature detected by the room temperature sensor and the floor temperature detected or estimated by the second temperature sensor, or the current room temperature and the detected temperature of the radiant heat detected by the radiation sensor. The air conditioner according to claim 1 or 2, wherein the temperature is set to a substantially intermediate temperature.

使用者が入力する室内の空調を調節する制御情報は、室温と前記床暖房放熱パネルの温度からなる体感温度または床や壁からの輻射熱による体感温度にて設定されることを特徴とする請求項１乃至請求項４のいずれかに記載の空気調和装置。The control information for adjusting air conditioning in a room, which is input by a user, is set based on a sensed temperature including a room temperature and a temperature of the floor heating radiating panel or a sensed temperature due to radiant heat from a floor or a wall. The air conditioner according to any one of claims 4 to 4.

前記床暖房放熱パネルの温度、前記輻射センサにより検出しる輻射熱の温度、または室温の設定温度のうち少なくとも１つを表示する表示部を、室内機またはリモートコントローラに設けたことを特徴とする請求項１または２に記載の空気調和装置。A display unit for displaying at least one of the temperature of the floor heating radiating panel, the temperature of radiant heat detected by the radiation sensor, and a set temperature of room temperature is provided in the indoor unit or the remote controller. Item 3. The air conditioner according to item 1 or 2.