JP4042480B2

JP4042480B2 - Air conditioner

Info

Publication number: JP4042480B2
Application number: JP2002185509A
Authority: JP
Inventors: 義浩田邉
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2002-06-26
Filing date: 2002-06-26
Publication date: 2008-02-06
Anticipated expiration: 2022-06-26
Also published as: JP2004028450A

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と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保有した室温と床面温度による快適特性データから前記第２温度センサにより検出または推定した床面温度が高い場合は室内の設定温度を低めに制御し、前記床面温度が低い場合は室内の設定温度を高めに制御するものである。
【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と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保有した室温と床面温度による快適特性データから前記輻射センサにより検出した床面温度が高い場合は室内の設定温度を低めに制御し、前記床面温度が低い場合は室内の設定温度を高めに制御するものである。
を特徴とする空気調和装置。
【０００８】
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、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、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との略中間温度に設定するものである。
【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、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輻射センサにより検出した輻射熱の検出温度と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と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保有した室温と床面温度による快適特性データから第２温度センサにより検出または推定した床面温度が高い場合は室内の設定温度を低めに制御し、床面温度が低い場合は室内の設定温度を高めに制御するので、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、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と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保有した室温と床面温度による快適特性データから輻射センサにより検出した床面温度が高い場合は室内の設定温度を低めに制御し、床面温度が低い場合は室内の設定温度を高めに制御するので、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、寒すぎを防止するとともに、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、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と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り、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。
【００３８】
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、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輻射センサにより検出した輻射熱の検出温度と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り、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。
【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]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner that can be used in combination with floor heating and heating operation by an air conditioner.
[0002]
[Prior art]
As a conventional air conditioner, the one shown in Japanese Patent Application Laid-Open No. 2000-55445 in FIG.
In FIG. 7, a compressor, a hot water heat exchanger as a condenser, a refrigerant circuit in which an electric expansion valve and an evaporator are connected in an annular shape, and floor heating heat dissipation in which hot water is circulated by a circulation pump through the hot water heat exchanger. With a panel. This air conditioner heats hot water with a hot water heat exchanger using a heat pump, and the heated hot water circulates through the floor heating heat radiation panel using a circulation pump via the hot water heat exchanger.
In addition to the hot water heat exchanger, the air conditioner includes an indoor heat exchanger in the indoor unit as the condenser, and performs heating operation by air conditioning of the indoor unit as an auxiliary to floor heating.
[0003]
When this air conditioner starts up the heating operation by air conditioning, the indoor unit control device sets the air volume to be blown out indoors to a predetermined large air volume. Judge whether or not. When the indoor unit control device determines that the floor heating operation is not being performed, the indoor fan control air flow is set to a predetermined small air flow rate. While making it smaller than an air volume, the horizontal flap provided in the blowing outlet is changed into a horizontal position, and warmed air is blown out horizontally.
[0004]
[Problems to be solved by the invention]
As described above, the conventional air conditioner suppresses the feeling of airflow and improves comfort by changing the air volume of the indoor fan. However, human comfort is more affected by room temperature and floor or wall radiant heat than airflow. Therefore, since the conventional air conditioner does not consider radiant heat such as room temperature or floor, it cannot be said that the comfort is necessarily improved. For example, even in a room where the room temperature is constant, if the floor temperature rises, the perceived temperature will increase, and the room temperature will become too warm, resulting in a problem of reduced comfort and energy savings. It was.
[0005]
The present invention has been made to solve such a problem, and is intended to improve comfort by correcting the set temperature in consideration of the radiant heat generated by the floor heating and radiating 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 disposed indoors and sucks and blows indoor air, an indoor temperature sensor that detects the temperature of indoor air, and an indoor unit controller, and an outdoor fan that is disposed outdoors. And an outdoor unit having a control unit 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 a room disposed in the indoor unit A refrigerant circuit that connects a heat exchanger with a refrigerant pipe to circulate the refrigerant, a hot water heat exchanger that exchanges 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 In the air conditioner comprising a water circuit that circulates brine or water that is connected at the first, a temperature of a floor heating radiating panel that is placed on the indoor floor surface and performs floor heating is detected or estimated. The temperature sensor is provided, from the comfort characteristic data according to pre-owned the room temperature and the floor temperature detecting or estimating the temperature and the indoor unit control unit or an outdoor unit control device for floor heating radiator panel by said second temperature sensor When the floor temperature detected or estimated by the second temperature sensor is high, the indoor set temperature is controlled to be low, and when the floor surface temperature is low, the indoor set temperature is controlled to be high. Is.
[0007]
In addition, an air conditioner according to the present invention is disposed indoors and includes 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 controller. An outdoor unit having an outdoor fan and an outdoor unit controller, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a pressure reducing device, and the indoor unit A refrigerant circuit that circulates the refrigerant by connecting the indoor heat exchanger with a refrigerant pipe, a hot water heat exchanger that exchanges 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 In an air conditioner comprising a water circuit that is connected by hot water piping and circulates brine or water, a radiation sensor that obtains an output according to the amount of infrared rays radiated from the detection target to the indoor unit Provided from the comfort characteristic data according to pre-owned the room temperature and the floor temperature radiant heat to the indoor unit control unit or an outdoor unit control device for detecting by said radiation sensor When the floor temperature detected by the radiation sensor is high, the indoor set temperature is controlled to be low, and when the floor surface temperature is low, the indoor set temperature is controlled to be high. Is.
An air conditioner characterized by.
[0008]
The air conditioner according to the present invention is 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 that has an indoor unit controller, and an outdoor unit that is disposed outdoors and has an outdoor fan and an outdoor unit controller. A refrigerant pipe connecting a compressor, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger disposed in the indoor unit. A refrigerant circuit for 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 are connected by hot water piping to circulate the brine or water. An air conditioner comprising a water circuit is provided with a second temperature sensor for detecting or estimating the temperature of a floor heating radiating panel that is placed on the floor surface of the room and performs floor heating. Setting the temperature to substantially intermediate temperature between the detected or estimated bed temperature by the current room temperature and the second temperature sensor which is detected by the indoor temperature sensor Is.
[0009]
The air conditioner according to the present invention is 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 that has an indoor unit controller, and an outdoor unit that is disposed outdoors and has an outdoor fan and an outdoor unit controller. A refrigerant pipe connecting a compressor, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger disposed in the indoor unit. A refrigerant circuit for 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 are connected by hot water piping to circulate the brine or water. In the air conditioner comprising a water circuit, the indoor unit is provided with a radiation sensor that obtains an output in accordance with the amount of infrared rays emitted from the object to be detected, and the indoor set temperature is set to the indoor temperature. Set approximately midway temperature between the detected temperature of the radiant heat detected by the current room temperature the radiant sensor, which is detected by the sensor Is.
[0010]
Further, in the air conditioner according to the present invention, the control information for adjusting the air conditioning in the room input by the user is a sensory temperature composed of room temperature and the temperature of the floor heating radiator panel or a sensory temperature due to radiant heat from the floor or wall. Is set.
[0011]
In addition, the air conditioner according to the present invention provides an indoor unit or a remote controller with a display unit that displays at least one of the temperature of the floor heating heat radiation panel, the temperature of the radiant heat detected by the radiation sensor, or the set temperature of the room temperature. It is provided.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
A first embodiment of the present invention will be described below with reference to FIG.
FIG. 1 is a schematic configuration diagram of a refrigerant circuit / 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 for switching between a cooling circuit and a heating circuit with one end connected to the discharge side of the compressor 1, and 3 is the other of the four-way valve 2 An outdoor heat exchanger with one end connected to the end, 4 is a capillary tube as a throttling device with one end connected to the other end of the outdoor heat exchanger 3, and 5 is an electric expansion valve as a pressure reducing device. The indoor unit 101 includes an indoor heat exchanger 6 connected to the other end of the electric expansion valve 5, and 7 a four-way valve 2 at the other end of the check valve 10 and the hot water heat exchanger 26. An accumulator having one end connected through the compressor and the other end connected to the suction side of the compressor 1.
[0013]
Next, 10 is a check valve having one end connected to the other end of the indoor heat exchanger 6 so that the refrigerant flows in the cooling circuit operation, and 25 is a two-stage condensation circuit in the heating circuit operation. Therefore, the expansion device 11 has one end connected to the other end of the indoor heat exchanger 6, and the indoor heat exchanger 11 is used to switch between a normal one-stage condensing circuit and a floor-heating two-stage condensing circuit during heating circuit operation. An electromagnetic valve having one end connected to the other end of the vessel 6, and a hot water heat exchanger 26 for exchanging heat between the refrigerant and the hot water having one end connected to the other end of the expansion device 25 and the electromagnetic valve 11.
Moreover, the pipe connection terminal part for connecting the refrigerant circuit of the outdoor unit 102 with the floor heater 103 is 8a, 8e, and the pipe connection terminal part for connecting the extension pipe connecting the indoor side 102 side is further provided. The gas refrigerant side is 8b, 8c, and the liquid refrigerant side is 8d, 8f.
As described above, an air conditioner with floor heating that adds a floor heating function that is arranged on the floor surface and performs air conditioning by radiant heat is added to the heat pump air conditioner that adjusts the air temperature by heating or cooling indoor air. It is composed.
[0014]
In the vicinity of the outdoor heat exchanger 3, an outdoor fan 23 for circulating outdoor air and a motor 19 for driving the outdoor fan 23 are provided.
In addition, the refrigerant circuit includes 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 in order to grasp the operation state of the refrigerant circuit. 17, an outdoor heat exchanger temperature sensor 20 provided in the outdoor heat exchanger 3, and a discharge temperature sensor 22 that detects the refrigerant temperature discharged from the compressor 1. And the room temperature sensor 16 which detects the indoor temperature is provided in order to calculate an air-conditioning load in operating a refrigerant circuit.
[0015]
The air conditioner also includes a water circuit for floor heating. 27 is a floor heating radiating panel connected to the water side circuit of the hot water heat exchanger 26, and 29 is connected to the other end of the floor heating radiating 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 connecting pipe between the hot water tank 29 and the hot water heat exchanger 26. The brine or water that has flowed out of the hot water circulation pump 28 forms a water circuit that returns to the hot water circulation pump 28 through the water side circuit of the hot water heat exchanger 26, the floor heating / radiation panel 27, and the hot water tank 29 in this order. .
[0016]
Also, a relay device 30 is provided between the floor heating radiator panel 27 and the floor heater 103 for passing the hot water pipe from the floor heating radiator panel installed on the indoor floor to the outdoor floor heater and relaying the hot water pipe. The relay device is attached to an indoor wall surface or floor surface. And the connection piping part for connecting the extension piping which connects the relay apparatus 30 and the floor heater 103 is 31a, 31b, The said extension copper piping 32a, 32b for hot water piping is a specification connected using copper piping. . Moreover, the connection part for connecting the relay apparatus 30 and the floor heating thermal radiation panel 27 in the indoor side is 34a, 34b, 34c, 34d, and since the piping made from bridge | crosslinking 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 radiating panel 27 and return water (from the floor heating radiating 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 that controls the operation of the air conditioner includes an input device 13c that inputs operation command information from the wireless remote controller 13d and the like, a flap that controls the direction of the indoor fan 18 and the blown air. In the indoor control device 13a that controls the driving of the indoor 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 / closing operation of the electromagnetic valve 11 are controlled and the control to other units is performed. The hot water control device 35a for sending a signal, and the outdoor unit 102 for controlling the drive of the compressor 1, the four-way valve 2, the electric expansion valve 5 and the outdoor fan 23, and sending control signals to other units. Consists of
[0019]
Next, the operation of the air conditioner having the above configuration will be described.
Operation content (heating / cooling / floor heating / heating + floor heating operation modes, etc.), set temperature conditions, wind speed conditions, etc. from the input device 13c that receives operation information transmitted by the user operating the wireless remote controller 13a When the indoor control device 13a receives the signal, a control signal is transmitted to the hot water control device 35a, and after the control signal is converted in accordance with the operation content in the hot water control device 35a, the outdoor control device 14 is transferred from the hot water control device 35a. A signal is sent according to the operation content to start operation.
[0020]
Here, the operation | movement in the operation mode of heating + floor heating in the air conditioning apparatus with floor heating of this Embodiment is demonstrated.
The four-way valve 2 is set to the position of the heating circuit (solid line display position in FIG. 1), and the compressor 1 starts operation. The refrigerant discharged from the compressor 1 flows into the floor heater 103 but cannot pass through the refrigerant pipe in which the check valve 10 is disposed. Therefore, the hot water heat exchanger 26 that exchanges heat between the refrigerant and water (brine) is provided. When it passes, it condenses and dissipates heat, and when the solenoid valve 11 is closed, the pressure is reduced through the expansion device 25 for the two-stage condensation circuit provided in parallel with the solenoid valve 11, and then the indoor heat exchanger 6 The heat is further condensed and radiated at a condensation temperature lower than that of the hot water heat exchanger 26. Further, when the solenoid valve 11 is open, the heat is condensed and dissipated by the hot water heat exchanger 26 through the bypass pipe in which the solenoid valve 11 is disposed. Then, the refrigerant discharged from the indoor heat exchanger 6 is expanded by the electric expansion valve 5, is evaporated by the outdoor heat exchanger 3, absorbs heat from the outside air, and returns to the suction side of the compressor 1 through the accumulator 7. Go.
[0021]
On the other hand, when the hot water circulation pump 28 disposed 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 is stored in the hot water heat exchanger 26. After being heated by the heat of condensation, it is fed into the floor heating radiating panel 27. The heating brine sent to the floor heating radiating panel 27 heats the floor heating radiating panel 27 to radiate heat indoors by radiation from the surface of the floor heating radiating panel, and then returns to the hot water tank 29 and repeats 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 does not reach the set temperature is larger, that is, as the temperature difference is larger, the operation speed of the compressor 1 is increased and the operation is performed with higher performance. And when the present room temperature becomes higher than preset temperature, it controls so that the compressor 1 may be stopped.
[0023]
Furthermore, the surface temperature of the floor heating panel is estimated by the return water temperature sensor 37 provided between the connecting pipe portion 31b of the pipe through which the hot water (brine) returning from the floor heating radiator panel of the water circuit flows, A difference between the target floor temperature and the current temperature of the floor heating heat radiation panel 27 surface is calculated by the floor heating control device 35a. When the surface temperature of the floor heating radiating panel 27 does not reach 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 The operation of increasing the hot water temperature is performed by raising the pressure of the refrigerant and raising the temperature of the refrigerant flowing through the hot water heat exchanger 26. 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 increased without increasing the pressure of the refrigerant flowing through the hot water heat exchanger 26. Operate at the same refrigerant pressure. Further, when the floor temperature is equal to or higher than the target floor temperature, the hot water circulation pump 28 of the water circuit is stopped, and the operation of stopping the circulation of the hot water to the floor heating / radiating panel is performed.
[0024]
In the above-described control, the human perceived temperature is greatly influenced not only by the room temperature (room air temperature) but also by the temperature of the floor heating / radiating panel 27. FIG. 2 shows an example of a line that provides the same comfort felt by a person according to changes in room temperature and floor temperature, and there is a similar comfort line in each temperature range. Based on this temperature relationship, by showing in each temperature zone, a sensory temperature that is a temperature felt by a person is shown.
And the data which shows the same comfortable characteristic of this room temperature and floor temperature are memorize | stored in the indoor control apparatus 13a, and according to the temperature of the floor heating thermal radiation panel surface estimated from the temperature detected by the return water temperature sensor 37, indoors It is possible to automatically change the set temperature of the air temperature.
[0025]
That is, when the floor temperature is high, the room temperature is controlled to be lower, and when the floor temperature is low, the room temperature is set to be higher. For example, when 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 increased to perform high-performance operation. Thereafter, when the floor temperature rises to 30 ° C., the operation is performed with the set temperature of the room temperature being lowered to 20 ° C. By performing the operation that changes the set temperature of the room temperature according to the floor temperature, it is possible to keep the sensible temperature constant, improving comfort at all times, and avoiding excessive warming and wasteful power consumption. Energy saving can be achieved.
[0026]
Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described.
In addition, about the structure of an air conditioning apparatus, it is the same as that of the above-mentioned FIG. 1, The description is abbreviate | 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. The surface temperature of the floor heating heat radiating panel may be directly detected by providing the temperature sensor 40 built in or attached to the surface of the floor heating heat radiating panel 27. In this case, in order to directly detect the surface temperature of the floor heating radiating panel 27, it is possible to perform control for keeping the sensible temperature constant with higher accuracy.
[0028]
Embodiment 3 FIG.
The third embodiment of the present invention will be described below with reference to FIGS.
In addition, about the structure of an air conditioning apparatus, it is the same as that of the above-mentioned FIG. 1, The description is abbreviate | omitted.
[0029]
In the first and second embodiments described above, 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 rays radiated from an object to be detected such as a floor or a wall. May be. FIG. 3 is an external view of the indoor unit of the air conditioner. The radiation sensor 41 is mounted in a substantially central part of the front surface of the indoor unit and a display unit 42 is provided in the vicinity thereof. In addition, this indoor unit is a wall-mounted type, and this type is used by installing it above the wall in order to air-condition and air-condition the entire room, so the radiation sensor 41 is on the surface facing the unit slightly downward. It is good to provide. FIG. 4 is a diagram showing an indoor installation image of the air conditioner of the present invention, and 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 radiating panel, 30 is a relay device provided on the wall surface and relaying hot water piping to the floor heating radiating panel, and 13d is a remote controller.
In this case, the radiation sensor 41 can capture the temperature of the floor heating panel and the temperature of other floor surfaces and wall surfaces as radiation heat in a non-contact manner. Therefore, not only the temperature from the surface of the floor heating and radiating panel described in the first and second embodiments, but also a wide range of room thermal environments can be detected, so that the temperature experienced by a person in the air-conditioned space can be detected more accurately. .
[0030]
FIG. 5 is a view showing the internal structure of the radiation sensor 41. In the figure, 46 is a base, 44 is a sensor CAN which is 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 disposed inside the sensor CAN and arranged behind the protective lens. It is the laminated thermocouple provided. Infrared rays radiated from the floor surface or wall surface, which is the detection target, pass through the protective lens 45 and enter the sensor CAN 44 as shown by the arrows in the figure, and reach the laminated thermocouple 43. This laminated thermocouple serves to obtain an output corresponding to the amount of infrared rays radiated, and the amount of radiant heat is calculated by the indoor control device based on the output value, and the calculated value is used in the description of the first embodiment. The same effect can be obtained by adjusting the temperature of the room temperature and the floor heating radiating panel.
[0031]
Embodiment 4 FIG.
Next, the 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 the set temperature of the room air is changed according to the floor temperature. However, in the fourth embodiment, the operational temperature is calculated by calculating the sensible temperature obtained from the relationship between the room air temperature and the surface temperature of the floor heating and radiating panel.
The relationship between the indoor temperature and the floor temperature, which shows the same comfort and is the temperature felt by humans, is roughly expressed as: the physical temperature = (indoor temperature + floor temperature) / 2. Therefore, by storing the relational expression of the sensible temperature in the indoor control device, the control may be performed to change the set temperature in the room based on the desired sensible temperature according to the floor temperature. From the above relational expression, the set temperature can be easily controlled according to the floor temperature. In addition, in the relational expression of the sensory temperature, the radiation temperature from the floor or wall may be used instead of the floor temperature.
[0032]
Embodiment 5. FIG.
Next, the fifth embodiment will be described. The configuration of the air conditioner is the same as that shown in FIG.
In the first embodiment described above, the set temperature of the room temperature is input from the remote controller 13d or the like. However, according to the temperature detected using the floor heating / radiating panel 27 or the radiation sensor 41, the sensible temperature felt by the person changes. Therefore, it was difficult to select the set temperature. Therefore, the set temperature to be input to the remote controller is set at the sensible temperature considering the room air temperature and the floor heating radiating panel temperature, or the sensible temperature considering the room 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 sensible temperature is always constant.
[0033]
There is a relation that the sensible temperature is approximately (radiation temperature of the floor or wall + current room temperature) / 2, depending on the radiation temperature of the floor or wall and the current room temperature. For example, when the sensible temperature setting preferred by the user is 23 ° C., when the floor temperature is 20 ° C., the room temperature is set to 26 ° C. Furthermore, when the radiation temperature of the floor or wall rises to 26 ° C., the operation is performed with the target room temperature of 20 ° C. That is, since the user always operates as a constant control of the sensible temperature and sets the sensible temperature desired by the user from the remote controller, the user can easily set a desired temperature.
[0034]
Moreover, in the above-mentioned air conditioning apparatus with floor heating, since operation control is performed using each value of room temperature, floor temperature, and sensory temperature, the display unit 42 provided in the indoor unit shown in FIG. By displaying 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 are also displayed, so that the operating state of the air conditioner can be known and used with peace of mind. As described above, the user's recognition of the temperature is improved and usability is improved, and it is possible to save energy by eliminating useless operation due to overheating. 6 shows a specific example of display on the display unit 42 provided in the indoor unit main body shown in FIG.
In addition, the display unit 42 can be provided not only in the indoor unit main body but also in a remote controller.
[0035]
【The invention's effect】
As described above, an air conditioner according to the present invention includes 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 controller, and an outdoor unit. An outdoor unit having an outdoor fan and an outdoor unit control device, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a pressure reducing device, and the indoor unit. A refrigerant circuit for circulating the refrigerant by connecting the installed indoor heat exchanger with refrigerant piping, 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 In an air conditioner consisting of a water circuit that connects a pump with hot water piping and circulates brine or water, it detects the temperature of a floor heating radiator panel that is placed on the floor of the room and performs floor heating. A temperature characteristic of the floor heating / dissipating panel detected or estimated by the second temperature sensor and the room temperature and floor surface temperature previously held in the indoor unit control device or outdoor unit control device are provided. From the data When the floor temperature detected or estimated by the second temperature sensor is high, the indoor set temperature is controlled to be lower, and when the floor temperature is low, the indoor set temperature is controlled to be higher. So, the temperature of the room is controlled by human (user) sensation temperature, so it is possible to ensure comfort by keeping the sensible temperature constant by preventing over-cold and over-cold temperature, and wasteful power consumption due to over-warming This has the effect of suppressing energy consumption and improving energy saving.
[0036]
In addition, an air conditioner according to the present invention is disposed indoors and includes 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 controller. An outdoor unit having an outdoor fan and an outdoor unit controller, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a pressure reducing device, and the indoor unit A refrigerant circuit that circulates the refrigerant by connecting the indoor heat exchanger with a refrigerant pipe, a hot water heat exchanger that exchanges 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 In an air conditioner comprising a water circuit that is connected by hot water piping and circulates brine or water, a radiation sensor that obtains an output according to the amount of infrared rays radiated from the detection target to the indoor unit Provided from the comfort characteristic data according to pre-owned the room temperature and the floor temperature radiant heat to the indoor unit control unit or an outdoor unit control device for detecting by said radiation sensor When the floor temperature detected by the radiation sensor is high, the indoor set temperature is controlled to be lower, and when the floor temperature is low, the indoor set temperature is controlled to be higher. Therefore, the temperature of the room is controlled by the temperature of the person (user), so that it is neither too warm nor too cold, and the room's thermal environment is widely detected to detect the sensory temperature more accurately and improve comfort. There is an effect that can be done.
[0037]
The air conditioner according to the present invention is An indoor fan that is arranged 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 unit that is arranged outdoor and has an outdoor fan and an outdoor unit controller A refrigerant pipe connecting a compressor, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger disposed in the indoor unit. A refrigerant circuit that circulates the refrigerant, a hot water heat exchanger that exchanges 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 are connected by hot water piping to circulate the brine or water. An air conditioner comprising a water circuit is provided with a second temperature sensor for detecting or estimating the temperature of a floor heating radiating panel that is placed on the floor surface of the room and performs floor heating. Setting the temperature to substantially intermediate temperature between the detected or estimated bed temperature by the current room temperature and the second temperature sensor which is detected by the indoor temperature sensor Therefore, it is possible to easily control the set temperature according to the floor temperature, and it is possible to secure comfort by keeping the sensible temperature constant, and it is possible to improve energy saving by suppressing unnecessary power consumption due to overheating. .
[0038]
The air conditioner according to the present invention is An indoor fan that is arranged 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 unit that is arranged outdoor and has an outdoor fan and an outdoor unit controller A refrigerant pipe connecting a compressor, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger disposed in the indoor unit. A refrigerant circuit for 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 are connected by hot water piping to circulate the brine or water. In the air conditioner comprising a water circuit, the indoor unit is provided with a radiation sensor that obtains an output in accordance with the amount of infrared rays emitted from the object to be detected, and the indoor set temperature is set to the indoor temperature. Set approximately midway temperature between the detected temperature of the radiant heat detected by the current room temperature the radiant sensor, which is detected by the sensor Therefore, it is possible to easily control the set temperature according to the floor temperature, and it is possible to detect a wide range of room thermal environments, detect the temperature of the body more accurately, and improve comfort.
[0039]
Further, in the air conditioner according to the present invention, the control information for adjusting the air conditioning in the room input by the user is a sensory temperature composed of room temperature and the temperature of the floor heating radiator panel or a sensory temperature due to radiant heat from the floor or wall. Since it is set, the user can always control the room temperature to a comfortable room temperature simply by setting the sensible temperature, and the operability can be simplified.
[0040]
In addition, the air conditioner according to the present invention provides an indoor unit or a remote controller with a display unit that displays at least one of the temperature of the floor heating heat radiation panel, the temperature of the radiant heat detected by the radiation sensor, or the set temperature of the room temperature. Since it is provided, the current floor temperature or radiant heat can be seen at a glance, and the operating status of the air conditioner can be known, and there is an effect that it can be used with confidence.
[Brief description of the drawings]
FIG. 1 is a refrigerant circuit and water circuit diagram of an air-conditioning apparatus according to Embodiment 1 of the present invention.
FIG. 2 is a comfortable diagram 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-conditioning apparatus according to Embodiment 1 of the present invention.
FIG. 4 is an image of indoor installation 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 conditioner according to the first embodiment of the present invention.
FIG. 6 is a configuration diagram of a display unit of the air conditioner indoor unit according to the first embodiment of the present invention.
FIG. 7 is a refrigerant circuit and water circuit diagram of a conventional air conditioner.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Compressor, 2 Four 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 Electromagnetic on-off valve , 12 Extension copper piping, 13a Indoor unit control device, 13b Wiring connection terminal, 14 Outdoor unit control device, 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 Outside air temperature sensor, 22 Compressor discharge temperature sensor, 23 Outdoor fan, 24 Outdoor fan motor, 25 Throttle device (for two-stage condensing circuit), 26 Hot water heat exchanger, 27 Floor heating Radiant panel, 28 Hot water circulation pump, 29 Hot water tank, 30 Relay device, 31 Hot water pipe connection terminal, 32 Hot water pipe extension copper distribution , 33 Hot water piping extension piping, 34 Extension piping connection terminal, 35 Warm water control device of floor heater, 36 Wiring connection terminal portion of hot water control device, 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 heat radiation panel temperature sensor, 41 Radiation sensor, 42 Main body display unit, 43 Laminated thermocouple, 44 Sensor CAN, 45 Protection lens, 46 Base.

Claims

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 that has an indoor unit controller, and an outdoor unit that is disposed outdoors and has an outdoor fan and an outdoor unit controller. A refrigerant pipe connecting a compressor, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger disposed in the indoor unit. A refrigerant circuit for 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 are connected by hot water piping to circulate the brine or water. In an air conditioner comprising a water circuit, a second temperature sensor is provided for detecting or estimating the temperature of a floor heating heat dissipating panel that is placed on the indoor floor surface and performs floor heating, and the second temperature sensor Floor detected or estimated by said second temperature sensor from the comfort characteristic data according to pre-owned the room temperature and the floor temperature detecting or estimating the temperature and the indoor unit control unit or an outdoor unit control device for floor heating radiator panel by sensor When the surface temperature is high, the indoor set temperature is controlled to be low, and when the floor surface temperature is low, the indoor temperature is controlled to be high .

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 that has an indoor unit controller, and an outdoor unit that is disposed outdoors and has an outdoor fan and an outdoor unit controller. A refrigerant pipe connecting a compressor, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger disposed in the indoor unit. A refrigerant circuit for 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 are connected by hot water piping to circulate the brine or water. In the air conditioner comprising a water circuit, the indoor unit is provided with a radiation sensor that obtains an output in accordance with the amount of infrared rays emitted from the object to be detected, and is detected by the radiation sensor. If Inetsu the floor temperature detected by said radiation sensor from the comfort characteristic data according to pre-owned the room temperature and the floor temperature in the indoor unit control unit or an outdoor unit control device is high, controls the indoor set temperature in the lower And when the said floor surface temperature is low, indoor set temperature is controlled highly, The air conditioning apparatus characterized by the above-mentioned .

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 that has an indoor unit controller, and an outdoor unit that is disposed outdoors and has an outdoor fan and an outdoor unit controller. A refrigerant pipe connecting a compressor, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger disposed in the indoor unit. A refrigerant circuit for 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 are connected by hot water piping to circulate the brine or water. An air conditioner comprising a water circuit is provided with a second temperature sensor for detecting or estimating the temperature of a floor heating radiating panel that is placed on the floor surface of the room and performs floor heating. An air conditioning apparatus characterized by setting the temperature to substantially intermediate temperature between the detected or estimated bed temperature by the current room temperature and the second temperature sensor which is detected by the indoor temperature sensor.

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 that has an indoor unit controller, and an outdoor unit that is disposed outdoors and has an outdoor fan and an outdoor unit controller. A refrigerant pipe connecting a compressor, a compressor disposed in the outdoor unit, a four-way valve for switching between cooling and heating, an outdoor heat exchanger, a pressure reducing device, and an indoor heat exchanger disposed in the indoor unit. A refrigerant circuit for 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 are connected by hot water piping to circulate the brine or water. In the air conditioner comprising a water circuit, the indoor unit is provided with a radiation sensor that obtains an output in accordance with the amount of infrared rays emitted from the object to be detected, and the indoor set temperature is set to the indoor temperature. An air conditioning apparatus characterized substantially by setting the intermediate temperature between the detected temperature of the radiant heat detected by the current room temperature the radiant sensor, which is detected by the sensor.

The control information for adjusting the air conditioning in the room, which is input by the user, is set based on a sensible temperature composed of a room temperature and a temperature of the floor heating and radiating panel or a sensible temperature due to radiant heat from a floor or a wall. The air conditioning apparatus according to any one of claims 4 to 4.

The indoor unit or the remote controller is provided with a display unit that displays at least one of a temperature of the floor heating heat radiation panel, a temperature of radiant heat detected by the radiation sensor, or a set temperature of room temperature. The air conditioning apparatus according to any one of claims 1 to 4.