JP3835102B2 - Air conditioner operation control device - Google Patents

Air conditioner operation control device Download PDF

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Publication number
JP3835102B2
JP3835102B2 JP2000015319A JP2000015319A JP3835102B2 JP 3835102 B2 JP3835102 B2 JP 3835102B2 JP 2000015319 A JP2000015319 A JP 2000015319A JP 2000015319 A JP2000015319 A JP 2000015319A JP 3835102 B2 JP3835102 B2 JP 3835102B2
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time
heating
temperature
heating operation
defrosting
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JP2000015319A
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JP2001208393A (en
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幸治 望月
輝夫 藤社
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は空気調和機に係わり、さらに詳しくはタイマー設定により暖房運転を開始あるいは停止させる場合の運転制御装置に関するものである。
【0002】
【従来の技術】
従来、室外側熱交換器の着霜状態を検出する着霜検出手段を有し、入りタイマー予約設定により暖房運転を開始できる空気調和機の運転制御装置としては、例えば特開昭58−62443号公報に開示されている。
【0003】
即ち、入りタイマー予約設定によるタイマー運転を行う場合は、前記タイマー運転による運転開始信号入力時に室外側熱交換器の除霜運転を行った後に、暖房運転を開始する制御装置を設けて、タイマー運転による暖房運転開始時には、最初に除霜運転を行い室外熱交換器の着霜を取り除いてから暖房運転を開始するものであった。
【0004】
また、特開平3−217743号公報に開示されている空気調和機の運転制御装置としては、室外側熱交換器の着霜状態を検出する着霜検出手段を有し、タイマー設定により暖房運転を開始できる空気調和機において、タイマー設定による暖房運転開始時刻前に、室外側熱交換器の着霜の有無を検出し、着霜状態であれば除霜運転を行い室外熱交換器の着霜を取り除いてから暖房運転を開始するものであった。
【0005】
【発明が解決しようとする課題】
しかしながら、冬期における空気調和機の暖房運転においては、例えば前夜運転時にあと数分で除霜運転が開始される状態まで室外熱交換器の着霜が進行した状態で運転停止されると、翌朝タイマー設定により暖房運転を開始した場合は、夜間に外気温度がかなり上昇しない限り、霜が多量に室外熱交換器に残ったままで暖房の立ち上げ運転が開始される。
【0006】
この結果、特にタイマーによる予約設定で暖房運転を実施する場合は、予約設定した暖房運転開始時刻においては、外気温度が低ければ低いほど速い暖房立ち上げが望まれるものであるが、暖房運転開始時刻直前あるいは直後に、外気条件にもよるが10分程度の除霜運転が入り、この間は室温の上昇が無いため益々暖房立ち上げが鈍くなり、タイマーで予約設定した暖房運転開始時刻における速い暖房立ち上げが実施されないという課題があった。
【0007】
本発明は、これらの課題について、タイマーで設定した暖房運転開始時刻において速い暖房立ち上げを実現して、暖房立ち上げ時の採暖性の向上を図れる空気調和機の運転制御装置を提供することを目的とするものである。
【0008】
【課題を解決するための手段】
上記課題を解決するために、本発明の請求項1記載の発明は、室外側熱交換器の着霜状態を検出する着霜検出手段と、入りタイマー予約設定により暖房運転を開始できるタイマー設定手段を設け、前記タイマー設定手段で設定された暖房運転開始時刻(タイムアップ時刻)よりも所定時間前に、除霜運転の判定を行うための除霜検知暖房運転を所定時間行い、その後前記着霜検出手段により前記室外側熱交換器の着霜の有無を検出し、着霜状態であれば除霜運転を行った後に暖房予備運転を前記タイムアップ時刻まで行い、タイムアップの後暖房運転を開始するようにしたものであって、室外側の外気温度を検出するための外気温度検出手段を設け、さらに前記外気温度検出手段により検出された外気温度の検出値により、除霜検知暖房運転開始時刻を選択するための除霜検知暖房運転開始時刻選択手段を設けたものである。
【0011】
この制御により、タイマーで設定した暖房運転開始時刻(タイムアップ時刻)においては、すでに除霜制御が終了して暖房予備運転が実施され、外気温度が低い場合においてもリモコンによる暖房設定温度にほぼ近い室温まで上昇しているので、暖房運転開始時刻のタイムアップ時点では速い暖房立ち上げが実施され、外気温度が低い場合においても暖房立ち上げ時の採暖性の向上が実現できる。
【0012】
また請求項記載の発明は、室外側熱交換器の着霜状態を検出する着霜検出手段と、入りタイマー予約設定により暖房運転を開始できるタイマー設定手段を設け、前記タイマー設定手段で設定された暖房運転開始時刻(タイムアップ時刻)よりも所定時間前に、除霜運転の判定を行うための除霜検知暖房運転を所定時間行い、その後前記着霜検出手段により前記室外側熱交換器の着霜の有無を検出し、着霜状態であれば除霜運転を行った後に暖房予備運転を前記タイムアップ時刻まで行い、タイムアップの後暖房運転を開始するようにしたものであって、室内側の暖房温度を設定するための暖房温度設定手段と、室内温度を検出するための室内側吸い込み温度検出手段を設け、さらに前記暖房温度設定手段により設定された暖房設定温度と前記室内側吸い込み温度検出手段により検出された室内側吸い込み温度の温度差の値により、除霜検知暖房運転開始時刻を選択するための除霜検知暖房運転開始時刻選択手段を設けた。
【0013】
この制御により、タイマーで設定した暖房運転開始時刻(タイムアップ時刻)においては、すでに除霜制御が終了して暖房予備運転が開始され、前記暖房設定温度と前記室内側吸い込み温度の温度差が大きい場合においても、リモコンによる暖房設定温度にほぼ近い室温まで上昇しているので、暖房運転開始時刻のタイムアップ時点では速い暖房立ち上げが実施され、前記温度差が大きい場合においても暖房立ち上げ時の採暖性の向上が実現できる。
【0014】
また請求項記載の発明は、室外側熱交換器の着霜状態を検出する着霜検出手段と、切りタイマー予約設定により暖房運転を停止できるタイマー設定手段を設け、前記タイマー設定手段による暖房運転停止時刻(タイムアップ時刻)の所定時間前に、前記着霜検出手段により前記室外側熱交換器の着霜の有無を検出し、着霜状態であれば除霜運転を行った後に運転を停止するようにした。
【0015】
この制御により、次回の暖房運転立ち上げ時点においては室外熱交換器への着霜がない状態で、暖房立ち上げが実施されるので採暖性の向上が実現できる。
【0016】
【発明の実施の形態】
以下、本発明の実施の形態について図1〜図5を用いて説明する。
【0017】
図1は本発明の空気調和機の、制御系の概略を示すブロック図であり、1は室内ユニット、2は室外ユニット、3はリモコン、4は電源である。
【0018】
室内ユニット1側に配置されたリモコン3は、空気調和機の運転および停止手段と、室内側の冷房および暖房温度設定手段、および空気調和機の運転停止時刻の予約設定可能なタイマー設定手段等を設けている。
【0019】
また室内制御部5は、前記リモコン3で設定された暖房温度や運転信号が入ると、室内センサー部6(室内側吸い込み温度検出手段)から送られてくる室内側吸い込み温度等を読み込み、運転条件を指令する。
【0020】
室内制御部5によって行われるこの運転指令は二系統あって、一つは室内ファンモーター7を制御し、もう一つは室外ユニット2のシステム制御部8に運転条件信号を送る。
【0021】
この信号を受けたシステム制御部8は、室外の外気温度検出手段として用いられる温度センサーと室外側熱交換器(図示せず)の着霜検出手段として用いられる温度センサーを有する室外センサー部9から、情報を得ながら圧縮機10の運転周波数を決め、波形合成制御部11を通してインバータ部12を制御し、このインバータ部12は前記のコンバータ部13から出力される直流電力を、三相の交流電力に変換して前記圧縮機10を駆動している。
【0022】
また、システム制御部8は室外ファンモーター14のON/OFF指令や、冷房時と暖房時、あるいは除霜運転のとき冷凍サイクルを切り替える四方弁15に指令を出している。
【0023】
前記室内制御部5とシステム制御部8は空気調和機の運転中、常に信号のやり取りを行い、室内制御部5が指令した運転条件をシステム制御部8が判読実行し、現在の運転状態を室内制御部5に返信し、表示部16では運転状況に何らかの異常があれば点滅して知らせるように制御されている。
【0024】
そして本発明においては、前記リモコン3により入りタイマーで設定された暖房運転開始時刻(タイムアップ時刻)よりも所定時間前に、例えば約50分前に除霜運転の判定を行うための除霜検知暖房運転を所定時間例えば約15分間行い、その後、着霜検出手段として室外側熱交換器の配管に配置された前記室外センサー部9により室外側熱交換器の着霜の有無を検出し、着霜状態であれば除霜運転を行った後、約1分間運転停止後に前記四方弁等を暖房運転に切り替えて、前記入りタイマーで設定された前記タイムアップ時刻まで暖房予備運転を行い、タイムアップ後、通常の暖房運転を開始するプログラムが設定されている。
【0025】
通常の暖房運転に入ると、前記室外センサー部9により常時着霜検知が実施され着霜状態が検出され次第除霜運転が実施される。
【0026】
この制御を図2のフローチャートを用いて詳述する。
【0027】
まず、ステップS1では前記リモコン3により暖房運転条件等が設定され、ステップS2で運転開始時刻(入りタイマー設定時刻)が設定される。
【0028】
ステップS3では、例えばステップS2で設定された暖房運転開始時刻の約50分前を、前記室外センサー部9による除霜検知暖房運転開始時刻としておき、その時刻になったらステップS4に進み約15分間の除霜検知暖房運転を実施して、その後に前記室外センサー部9により室外側熱交換器の配管温度を検出する。
【0029】
ステップS5では、ステップS4で検出された温度値により、前記室外側熱交換器が着霜状態であるか否かを判定し、除霜運転を要しない場合にはステップS9に進行して、先にステップS2で設定した暖房運転の開始時刻まで暖房予備運転を実施する。
【0030】
そしてステップS10でタイムアップ時刻を判定してタイムアップならステップS11に進行し暖房運転を開始する。
【0031】
もし、前記ステップS5で室外側熱交換器が着霜状態になっていると判定され、除霜運転が必要であればステップS6で除霜運転が開始される。
【0032】
ステップS7では、前記室外側熱交換器の配管温度が所定値まで上昇すれば除霜運転を終了し、先にステップS2で設定したタイムアップ時刻まで暖房予備運転を実施する。
【0033】
そしてステップS10でタイムアップ時刻を判定してタイムアップならステップS11に進行し通常の暖房運転を開始する。
【0034】
上記制御により、タイマーで設定した暖房運転開始時刻(タイムアップ時刻)においては、すでに除霜制御が終了して暖房予備運転が実施され、前記リモコン3による暖房設定温度にほぼ近い室温まで上昇しているので、暖房運転開始時刻のタイムアップ時点では速い暖房立ち上げが実施され、暖房立ち上げ時の採暖性の向上が実現できる。
【0035】
なお、本実施の形態では除霜検知暖房運転を約15分として、また除霜検知暖房運転開始から暖房運転開始までを約50分として説明したが、空気調和機の性能によりこの値は実験値により最適値が決定されるものである。
【0036】
また、前記室外センサー部9により検出された外気温度が低い場合は、前記外気温度の値により、除霜検知暖房運転開始から暖房運転開始(タイムアップ時刻)までの時間を長くすることにより、より暖房立ち上げ時の採暖性の向上が実現できる。
【0037】
この制御を図3のフローチャートを用いて詳述する。
【0038】
まず、ステップS101では前記リモコン3により暖房運転条件等が設定され、ステップS102で運転開始時刻(入りタイマー設定時刻)が設定される。
【0039】
次にステップS103で外気温度の検出が前記室外センサー部9により実施される。
【0040】
この検出動作は後述のステップS105の除霜検知暖房運転開始時刻IIの検出動作直前に実施するように設定されている。
【0041】
そして、例えば外気温度が−3℃以上ならばステップS104に進んで除霜検知暖房運転開始時刻Iが選択される。
【0042】
例えばステップS102で設定された暖房運転開始時刻の50分前を、前記室外センサー部9による除霜検知暖房運転開始時刻としておき、その時刻になったらステップS106に進み約15分間の除霜検知暖房運転を実施して、その後に前記室外センサー部9により室外側熱交換器の配管温度を検出する。
【0043】
また、外気温度が−3℃未満ならばステップ105に進んで除霜検知暖房運転開始時刻IIが選択される。
【0044】
例えばステップS102で設定された暖房運転開始時刻(タイムアップ時刻)の約80分前を、前記室外センサー部9による除霜検知暖房運転開始時刻としておき、その時刻になったらステップS106に進み約15分間の除霜検知暖房運転を実施して、その後に前記室外センサー部9により室外側熱交換器の配管温度を検出する。
【0045】
ステップS107では、ステップS106で検出された温度値により、前記室外側熱交換器が着霜状態であるか否かを判定し、除霜運転を要しない場合にはステップS111に進行して、先にステップS102で設定した暖房運転開始時刻まで暖房予備運転を実施する。
【0046】
そしてステップS112でタイムアップ時刻を判定してタイムアップならステップS113に進行し暖房運転を開始する。
【0047】
もし、前記ステップS107で室外側熱交換器が着霜状態になっていると判定され、除霜運転が必要であればステップS108で除霜運転が開始される。
【0048】
ステップS109では、前記室外側熱交換器の配管温度が所定値まで上昇すればステップS110に進み除霜運転を終了し、先にステップS102で設定したタイムアップ時刻まで暖房予備運転を実施する。
【0049】
そしてステップS112でタイムアップ時刻を判定してタイムアップならステップS113に進行し通常の暖房運転を開始する。
【0050】
なお、上記の除霜検知暖房運転開始時刻I、IIの選択(ステップS103)は除霜検知暖房運転開始時刻選択手段により実行され、前記除霜検知暖房運転開始時刻選択手段は室外ユニット2に設けたシステム制御部8に含めて配設することで実現される。
【0051】
また、除霜検知暖房運転開始時刻選択手段の外気温度のしきい値を複数に増やし、除霜検知暖房運転開始時刻もIII、IV…と増やして制御することも勿論可能である。
【0052】
上記制御により、タイマーで設定した暖房運転開始時刻(タイムアップ時刻)においては、すでに除霜制御が終了して暖房予備運転が実施され、外気温度が低い場合においても前記リモコン3による暖房設定温度にほぼ近い室温まで上昇しているので、暖房運転開始時刻のタイムアップ時点では速い暖房立ち上げが実施され、暖房立ち上げ時の採暖性の向上が実現できる。
【0053】
なお、本実施の形態では除霜検知暖房運転を約15分として、また除霜検知暖房運転開始から暖房運転開始までを約50分および約80分として説明したが、空気調和機の性能によりこの値は実験値により最適値が決定されるものである。
【0054】
また、室内側の前記リモコン3により設定された暖房設定温度T1と、前記室内センサー部6により検出された室内側吸込み温度T2の温度差ΔT(=T1−T2)が大きい場合は、前記温度差ΔTの値により、除霜検知暖房運転開始から暖房運転開始(タイムアップ時刻)までの時間を長くすることにより、より暖房立ち上げ時の採暖性の向上が実現できる。
【0055】
この制御を図4のフローチャートを用いて詳述する。
【0056】
まず、ステップS201では前記リモコン3により暖房運転条件等が設定され、ステップS202で運転開始時刻(入りタイマー設定時刻)が設定される。
【0057】
次にステップS203で前記温度差ΔT(=T1−T2)が検出演算される。この検出演算の動作は後述のステップS205の除霜検知暖房運転開始時刻IIの検出動作直前に実施される。
【0058】
そして、例えば前記温度差ΔT(=T1−T2)が15℃未満ならばステップ204に進んで除霜検知暖房運転開始時刻Iが選択される。
【0059】
例えばステップS202で設定された暖房運転開始時刻の50分前を、前記室外センサー部9による除霜検知暖房運転開始時刻としておき、その時刻になったらステップS206に進み約15分間の除霜検知暖房運転を実施して、その後に前記室外センサー部9により室外側熱交換器の配管温度を検出する。
【0060】
また、温度差ΔT(=T1−T2)が15℃以上ならばステップ205に進んで除霜検知暖房運転開始時刻IIが選択される。
【0061】
例えばステップS202で設定された暖房運転開始時刻(タイムアップ時刻)の約80分前を、前記室外センサー部9による除霜検知暖房運転開始時刻としておき、その時刻になったらステップS206に進み約15分間の除霜検知暖房運転を実施して、その後に前記室外センサー部9により室外側熱交換器の配管温度を検出する。
【0062】
ステップS207では、ステップS206で検出された温度値により、前記室外側熱交換器が着霜状態であるか否かを判定し、除霜運転を要しない場合にはステップS211に進行して、先にステップS202で設定した暖房運転開始時刻まで暖房予備運転を実施する。
【0063】
そしてステップS212でタイムアップ時刻を判定して、タイムアップならステップS213に進行し暖房運転を開始する。
【0064】
もし、前記ステップS207で室外側熱交換器が着霜状態になっていると判定され、除霜運転が必要であればステップS208で除霜運転が開始される。
【0065】
ステップS209では、前記室外側熱交換器の配管温度が所定値まで上昇すればS210に進み除霜運転を終了し、その後ステップS211に進行して先にステップS202で設定したタイムアップ時刻まで暖房予備運転を実施する。
【0066】
そしてステップS212でタイムアップ時刻を判定してタイムアップならステップS213に進行し通常の暖房運転を開始する。
【0067】
なお、上記の除霜検知暖房運転開始時刻I、IIの選択(ステップS203)は除霜検知暖房運転開始時刻選択手段により実行され、前記除霜検知暖房運転開始時刻選択手段は室内ユニット1に設けた室内制御部5に含めて配設することで実現される。
【0068】
また、除霜検知暖房運転開始時刻選択手段の温度差ΔTのしきい値を複数に増やし、除霜検知暖房運転開始時刻もIII、IV…と増やして制御することも勿論可能である。
【0069】
上記制御により、タイマーで設定した暖房運転開始時刻(タイムアップ時刻)においては、すでに除霜制御が終了して暖房予備運転が実施され、前記温度差ΔT(=T1−T2)が大きい場合においてもリモコン3による暖房設定温度にほぼ近い室温まで上昇しているので、暖房運転開始時刻のタイムアップ時点では速い暖房立ち上げが実施され、前記温度差ΔT(=T1−T2)が大きい場合においても、暖房立ち上げ時の採暖性の向上が実現できる。
【0070】
なお、本実施の形態では除霜検知暖房運転を約15分として、また除霜検知暖房運転開始から暖房運転開始までを約50分および約80分として説明したが、空気調和機の性能によりこの値は実験値により最適値が決定されるものである。
【0071】
また、室外側熱交換器の着霜状態を検出する着霜検出手段を設け、さらに、切りタイマー予約設定により暖房運転を停止できるタイマ−設定手段を設け、前記タイマ−設定手段による暖房運転停止時刻(タイムアップ時刻)の所定時間前に、前記着霜検出手段により前記室外側熱交換器の着霜の有無を検出し、着霜状態であればタイムアップ前に、除霜運転を行った後に運転停止することにより、次回の暖房運転立ち上げ時の採暖性の向上が実現できる。
【0072】
この制御を図5のフローチャートを用いて詳述する。
【0073】
図5において、ステップS301では前記リモコン3により暖房運転条件等が設定され、ステップS302で暖房運転停止時刻が設定される。
【0074】
ステップS303では、例えば前記ステップS302で設定された暖房運転停止時刻(タイムアップ時刻)の所定時間、例えば約20分前を前記室外センサー部9による室外熱交換器の温度検出開始時刻としておき、その時刻になったら前記室外センサー部9により室外側熱交換器の温度を検出する。
【0075】
ステップS304では、ステップS303で検出された温度値により、前記室外側熱交換器が着霜状態であるか否かを判定し、除霜運転を要しない場合にはステップS308に進行して、先にステップS302で設定したタイムアップ時刻まで待機し、タイムアップになるとステップS309に進行し、暖房運転を停止する。
【0076】
もし、前記ステップS304で室外側熱交換器が着霜状態になっていると判定され、除霜運転が必要であれば、ステップS305で除霜運転が開始され、ステップS306では前記室外側熱交換器の配管温度が所定値まで上昇すれば除霜運転を終了する。
【0077】
ステップS307では除霜終了を確認すると四方弁14等を暖房運転側に切り替え、先にステップS302で設定したタイムアップ時刻まで待機し、タイムアップになるとステップS309に進行して暖房運転を停止する。
【0078】
上記制御により、次回の暖房運転立ち上げ時点においては室外熱交換器への着霜がない状態で、暖房立ち上げが実施されるので採暖性の向上が実現できる。
【0079】
【発明の効果】
本発明は以上説明したような形態で実施され、以下に記載するような効果を奏する。
【0080】
請求項1記載の発明は、室外側熱交換器の着霜状態を検出する着霜検出手段と、入りタイマー予約設定により暖房運転を開始できるタイマー設定手段を設け、前記タイマー設定手段で設定された暖房運転開始時刻(タイムアップ時刻)よりも所定時間前に、除霜運転の判定を行うための除霜検知暖房運転を所定時間行い、その後前記着霜検出手段により前記室外側熱交換器の着霜の有無を検出し、着霜状態であれば除霜運転を行った後に暖房予備運転を前記タイムアップ時刻まで行い、タイムアップの後暖房運転を開始するようにして、室外側の外気温度を検出するための外気温度検出手段を設け、さらに前記外気温度検出手段により検出された外気温度の検出値により、除霜検知暖房運転開始時刻を選択するための除霜検知暖房運転開始時刻選択手段を設けたので、タイマーで設定した暖房運転開始時刻(タイムアップ時刻)においては、すでに除霜制御が終了して暖房予備運転が実施され、外気温度が低い場合においても前記リモコンによる暖房設定温度にほぼ近い室温まで上昇しているので、暖房運転開始時刻のタイムアップ時点では速い暖房立ち上げが実施
され、外気温度が低い場合においても暖房立ち上げ時の採暖性の向上が実現できる。
【0082】
また、請求項記載の発明は、室内側の暖房温度設定手段と、室内温度を検出するための室内側吸い込み温度検出手段を設け、さらに前記暖房温度設定手段により設定された暖房設定温度と、前記室内側吸い込み温度検出手段により検出された室内側吸い込み温度の温度差の値により、除霜検知暖房運転開始時刻を選択するための除霜検知暖房運転開始時刻選択手段を設けたので、タイマーで設定した暖房運転開始時刻(タイムアップ時刻)においては、すでに除霜制御が終了して暖房予備運転が開始され、前記暖房設定温度と前記室内側吸い込み温度の温度差が大きい場合においても、リモコンによる暖房設定温度にほぼ近い室温まで上昇しているので、暖房運転開始時刻のタイムアップ時点では速い暖房立ち上げが実施され、前記温度差が大きい場合においても暖房立ち上げ時の採暖性の向上が実現できる。
【0083】
また、請求項記載の発明は、室外側熱交換器の着霜状態を検出する着霜検出手段と、切りタイマー予約設定により暖房運転を停止できるタイマー設定手段を設け、前記タイマー設定手段による暖房運転停止時刻(タイムアップ時刻)の所定時間前に、前記着霜検出手段により前記室外側熱交換器の着霜の有無を検出し、着霜状態であれば除霜運転を行った後に運転を停止するようにしたので、次回の暖房運転立ち上げ時点においては室外熱交換器への着霜がない状態で、暖房立ち上げが実施されるので採暖性の向上が実現できる。
【図面の簡単な説明】
【図1】本発明の実施の形態における空気調和機の制御ブロック図
【図2】本発明の実施の形態における運転制御装置の制御フローチャート
【図3】本発明の実施の形態における他の運転制御装置の制御フローチャート
【図4】本発明の実施の形態における他の運転制御装置の制御フローチャート
【図5】本発明の実施の形態における他の運転制御装置の制御フローチャート
【符号の説明】
1 室内ユニット
2 室外ユニット
3 リモコン
5 室内制御部
6 室内センサー部
7 フアンモータ
8 システム制御部
9 室外センサー部
10 圧縮機
15 四方弁
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner, and more particularly to an operation control device for starting or stopping a heating operation by setting a timer.
[0002]
[Prior art]
Conventionally, as an air conditioner operation control device that has frost detection means for detecting the frost formation state of the outdoor heat exchanger and can start the heating operation by setting the timer reservation, for example, Japanese Patent Laid-Open No. 58-62443 It is disclosed in the publication.
[0003]
That is, when performing the timer operation by entering the timer reservation setting, after performing the defrosting operation of the outdoor heat exchanger at the time of the operation start signal input by the timer operation, a control device for starting the heating operation is provided, and the timer operation is performed. At the start of the heating operation, the defrosting operation was first performed and the frosting of the outdoor heat exchanger was removed, and then the heating operation was started.
[0004]
Moreover, as an operation control apparatus of the air conditioner disclosed in JP-A-3-217743, it has frost detection means for detecting the frost state of the outdoor heat exchanger, and heating operation is performed by setting a timer. In an air conditioner that can be started, the presence or absence of frost on the outdoor heat exchanger is detected before the heating operation start time set by the timer, and if it is in a frost state, the defrost operation is performed and the outdoor heat exchanger is defrosted. The heating operation was started after the removal.
[0005]
[Problems to be solved by the invention]
However, in the heating operation of the air conditioner in winter, for example, when the operation is stopped in a state where the frosting of the outdoor heat exchanger has progressed to the state where the defrosting operation is started in a few minutes during the previous night operation, the next morning timer When the heating operation is started by setting, the heating start-up operation is started with a large amount of frost remaining in the outdoor heat exchanger unless the outside air temperature rises considerably at night.
[0006]
As a result, particularly when the heating operation is performed with the reservation setting by the timer, at the heating operation start time set for reservation, the lower the outside air temperature, the faster the heating start-up is desired. Immediately before or after, depending on the outside air conditions, a defrosting operation of about 10 minutes has started. During this period, there is no increase in room temperature, and the heating start-up becomes increasingly slow. There was a problem that raising was not implemented.
[0007]
In view of these problems, the present invention provides an operation control device for an air conditioner that realizes quick heating start-up at a heating operation start time set by a timer, and can improve warming performance at the time of heating start-up. It is the purpose.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention according to claim 1 of the present invention is characterized in that frost detection means for detecting the frost state of the outdoor heat exchanger, and timer setting means for starting the heating operation by entering the timer reservation setting. The defrosting detection heating operation for determining the defrosting operation is performed for a predetermined time before the heating operation start time (time up time) set by the timer setting means, and then the frost formation is performed. The detection means detects the presence or absence of frost formation on the outdoor heat exchanger, and if it is frosted, performs a defrosting operation and then performs a preliminary heating operation until the time-up time and starts the heating operation after the time-up be one obtained by so doing, the outside air temperature detecting means for detecting the outside air temperature of the outdoor side is provided, the further detection value of the outside air temperature detected by the outside air temperature detecting means, defrosting detecting heating operation It is provided with a defrosting sensing heating operation start time selecting means for selecting the start time.
[0011]
By this control, at the heating operation start time (time up time) set by the timer, the defrost control is already completed and the heating preliminary operation is performed, and even when the outside air temperature is low, it is almost close to the heating set temperature by the remote controller. Since the temperature has risen to room temperature, a quick heating start-up is performed at the time when the heating operation start time is up, and even when the outside air temperature is low, an improvement in the warming performance at the start-up of the heating can be realized.
[0012]
Further, the invention according to claim 2 is provided with frost detection means for detecting the frost state of the outdoor heat exchanger, and timer setting means for starting the heating operation by entering timer reservation setting, and is set by the timer setting means. The defrosting detection heating operation for determining the defrosting operation is performed for a predetermined time before a predetermined time before the heating operation start time (time up time), and then the frosting detection unit performs the defrosting detection heating operation. The presence or absence of frost formation is detected, and if it is a frost state, after performing the defrosting operation, the preliminary heating operation is performed until the time-up time, and the heating operation is started after the time-up, A heating temperature setting means for setting the inside heating temperature and an indoor suction temperature detection means for detecting the room temperature are provided, and the heating set temperature set by the heating temperature setting means and the previous The value of the temperature difference between the detected indoor side suction temperature by the indoor side suction temperature detecting means, provided defrosting sensing heating operation start time selecting means for selecting a defrosting sensing heating operation start time.
[0013]
By this control, at the heating operation start time (time up time) set by the timer, the defrost control is already finished and the heating preliminary operation is started, and the temperature difference between the heating set temperature and the indoor suction temperature is large. Even in this case, since the temperature has risen to a room temperature that is almost close to the heating set temperature by the remote controller, quick heating start-up is performed at the time when the heating operation start time is up, and even when the temperature difference is large, Improved warming performance.
[0014]
According to a third aspect of the present invention, there is provided frost detection means for detecting the frost state of the outdoor heat exchanger, and timer setting means for stopping the heating operation by setting a timer to be turned off, and the heating operation by the timer setting means Predetermined time before the stop time (time up time), the frost detection means detects the presence or absence of frost on the outdoor heat exchanger, and if it is in a frost state, the operation is stopped after the defrost operation is performed. I tried to do it.
[0015]
With this control, at the time of the next heating operation start-up, the heating start-up is performed in a state where there is no frost formation on the outdoor heat exchanger, so that it is possible to improve the warming performance.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
[0017]
FIG. 1 is a block diagram showing an outline of a control system of an air conditioner of the present invention, wherein 1 is an indoor unit, 2 is an outdoor unit, 3 is a remote controller, and 4 is a power source.
[0018]
The remote controller 3 disposed on the indoor unit 1 side includes an air conditioner operation and stop means, an indoor cooling and heating temperature setting means, a timer setting means capable of setting an air conditioner operation stop time, and the like. Provided.
[0019]
The indoor control unit 5 reads the indoor suction temperature and the like sent from the indoor sensor unit 6 (indoor suction temperature detecting means) when the heating temperature and the operation signal set by the remote controller 3 are input, and the operating conditions are read. Is commanded.
[0020]
There are two operation commands issued by the indoor controller 5, one of which controls the indoor fan motor 7, and the other sends an operating condition signal to the system controller 8 of the outdoor unit 2.
[0021]
Upon receipt of this signal, the system control unit 8 receives from the outdoor sensor unit 9 having a temperature sensor used as outdoor outdoor temperature detection means and a temperature sensor used as frost formation detection means for an outdoor heat exchanger (not shown). The operating frequency of the compressor 10 is determined while obtaining information, and the inverter unit 12 is controlled through the waveform synthesis control unit 11. The inverter unit 12 converts the DC power output from the converter unit 13 into three-phase AC power. And the compressor 10 is driven.
[0022]
Further, the system control unit 8 issues a command to the four-way valve 15 for switching the refrigeration cycle during the cooling and heating, or during the defrosting operation, and the ON / OFF command of the outdoor fan motor 14.
[0023]
The indoor control unit 5 and the system control unit 8 always exchange signals during the operation of the air conditioner, and the system control unit 8 interprets and executes the operating conditions instructed by the indoor control unit 5 to indicate the current operation state in the room. It returns to the control part 5, and the display part 16 is controlled to blink and notify if there is any abnormality in the driving situation.
[0024]
In the present invention, the defrosting detection for determining the defrosting operation, for example, about 50 minutes before the heating operation start time (time up time) set by the remote control 3 and set by the timer. The heating operation is performed for a predetermined time, for example, about 15 minutes, and then the presence or absence of frost on the outdoor heat exchanger is detected by the outdoor sensor unit 9 arranged in the piping of the outdoor heat exchanger as frost detection means. If it is frost, after defrosting operation, after stopping operation for about 1 minute, switch the four-way valve etc. to heating operation, perform heating preparatory operation until the time up time set by the entering timer, and time up After that, a program for starting normal heating operation is set.
[0025]
When the normal heating operation is started, the outdoor sensor unit 9 always performs frost detection, and the defrost operation is performed as soon as the frost state is detected.
[0026]
This control will be described in detail with reference to the flowchart of FIG.
[0027]
First, in step S1, heating operation conditions and the like are set by the remote controller 3, and in step S2, an operation start time (on timer setting time) is set.
[0028]
In step S3, for example, about 50 minutes before the heating operation start time set in step S2 is set as the defrost detection heating operation start time by the outdoor sensor unit 9, and when that time is reached, the process proceeds to step S4 for about 15 minutes. The defrosting detection heating operation is performed, and then the outdoor sensor unit 9 detects the pipe temperature of the outdoor heat exchanger.
[0029]
In step S5, it is determined whether or not the outdoor heat exchanger is in a frosted state based on the temperature value detected in step S4. If the defrosting operation is not required, the process proceeds to step S9. The preliminary heating operation is performed until the start time of the heating operation set in step S2.
[0030]
In step S10, the time-up time is determined. If the time is up, the process proceeds to step S11 and the heating operation is started.
[0031]
If it is determined in step S5 that the outdoor heat exchanger is in a frosted state, and the defrosting operation is necessary, the defrosting operation is started in step S6.
[0032]
In step S7, if the piping temperature of the outdoor heat exchanger rises to a predetermined value, the defrosting operation is terminated, and the preliminary heating operation is performed until the time-up time previously set in step S2.
[0033]
In step S10, the time-up time is determined. If the time is up, the process proceeds to step S11, and the normal heating operation is started.
[0034]
By the above control, at the heating operation start time (time-up time) set by the timer, the defrost control is already finished and the preliminary heating operation is performed, and the temperature rises to a room temperature almost close to the heating set temperature by the remote controller 3. Therefore, quick heating start-up is performed at the time when the heating operation start time is up, and it is possible to improve the warming performance at the time of heating start-up.
[0035]
In this embodiment, the defrost detection heating operation is described as about 15 minutes, and the time from the start of the defrost detection heating operation to the start of the heating operation is about 50 minutes. However, this value is an experimental value depending on the performance of the air conditioner. Thus, the optimum value is determined.
[0036]
Further, when the outdoor temperature detected by the outdoor sensor unit 9 is low, by increasing the time from the start of the defrost detection heating operation to the start of the heating operation (time up time) by the value of the outdoor temperature, Improvement of warming performance at the start of heating can be realized.
[0037]
This control will be described in detail with reference to the flowchart of FIG.
[0038]
First, in step S101, heating operation conditions and the like are set by the remote controller 3, and in step S102, an operation start time (on timer setting time) is set.
[0039]
In step S103, the outdoor sensor unit 9 detects the outside air temperature.
[0040]
This detection operation is set to be performed immediately before the detection operation of the defrost detection heating operation start time II in step S105 described later.
[0041]
For example, if the outside air temperature is −3 ° C. or higher, the process proceeds to step S104, and the defrosting detection heating operation start time I is selected.
[0042]
For example, 50 minutes before the heating operation start time set in step S102 is set as the defrost detection heating operation start time by the outdoor sensor unit 9. When that time comes, the process proceeds to step S106 and the defrost detection heating for about 15 minutes is performed. After the operation, the outdoor sensor unit 9 detects the pipe temperature of the outdoor heat exchanger.
[0043]
Further, defrosting detecting heating operation start time II is selected the routine proceeds to step 105 if the outside air temperature is less than -3 ° C..
[0044]
For example, about 80 minutes before the heating operation start time (time up time) set in step S102 is set as the defrost detection heating operation start time by the outdoor sensor unit 9, and when that time is reached, the process proceeds to step S106 and about 15 minutes. A defrost detection heating operation for a minute is performed, and then the outdoor sensor unit 9 detects the pipe temperature of the outdoor heat exchanger.
[0045]
In step S107, it is determined whether or not the outdoor heat exchanger is in a frosted state based on the temperature value detected in step S106. If the defrosting operation is not required, the process proceeds to step S111. The heating preliminary operation is performed until the heating operation start time set in step S102.
[0046]
In step S112, the time-up time is determined. If the time is up, the process proceeds to step S113 and the heating operation is started.
[0047]
If it is determined in step S107 that the outdoor heat exchanger is in a frosted state, and the defrosting operation is necessary, the defrosting operation is started in step S108.
[0048]
In step S109, if the piping temperature of the outdoor heat exchanger rises to a predetermined value, the process proceeds to step S110 to end the defrosting operation, and the heating preparatory operation is performed until the time-up time previously set in step S102.
[0049]
In step S112, the time-up time is determined. If the time is up, the process proceeds to step S113 and the normal heating operation is started.
[0050]
The above defrosting sensing heating operation start time I, the selection of II (step S103) is performed by the defrosting detecting heating operation start time selecting means, said defrosting sensing heating operation start time selecting means provided in the outdoor unit 2 This is realized by being included in the system control unit 8.
[0051]
It is of course possible to control the defrost detection heating operation start time selection means by increasing the outside air temperature threshold to a plurality, and increasing the defrost detection heating operation start time by III, IV.
[0052]
By the above control, at the heating operation start time (time up time) set by the timer, the defrosting control is already finished and the preliminary heating operation is performed, and even when the outside air temperature is low, the heating set temperature by the remote controller 3 is set. Since the temperature has risen to almost the same room temperature, quick heating start-up is performed at the time when the heating operation start time is up, and it is possible to improve the warming performance at the time of heating start-up.
[0053]
In the present embodiment, the defrost detection heating operation is described as about 15 minutes, and the time from the start of the defrost detection heating operation to the start of the heating operation is set as about 50 minutes and about 80 minutes. The optimum value is determined by the experimental value.
[0054]
When the temperature difference ΔT (= T1−T2) between the heating set temperature T1 set by the remote controller 3 on the indoor side and the indoor suction temperature T2 detected by the indoor sensor unit 6 is large, the temperature difference By increasing the time from the start of the defrost detection heating operation to the start of the heating operation (time up time) based on the value of ΔT, it is possible to further improve the warming performance when the heating is started up.
[0055]
This control will be described in detail with reference to the flowchart of FIG.
[0056]
First, in step S201, heating operation conditions and the like are set by the remote controller 3, and in step S202, an operation start time (on timer setting time) is set.
[0057]
Next, in step S203, the temperature difference ΔT (= T1-T2) is detected and calculated. This detection calculation operation is performed immediately before the detection operation of the defrost detection heating operation start time II in step S205 described later.
[0058]
For example, if the temperature difference ΔT (= T1−T2) is less than 15 ° C., the routine proceeds to step 204 where the defrost detection heating operation start time I is selected.
[0059]
For example, 50 minutes before the heating operation start time set in step S202 is set as the defrost detection heating operation start time by the outdoor sensor unit 9, and when that time is reached, the process proceeds to step S206 for about 15 minutes of defrost detection heating. After the operation, the outdoor sensor unit 9 detects the pipe temperature of the outdoor heat exchanger.
[0060]
Moreover, if temperature difference (DELTA) T (= T1-T2) is 15 degreeC or more, it will progress to step 205 and the defrost detection heating operation start time II will be selected.
[0061]
For example, about 80 minutes before the heating operation start time (time up time) set in step S202 is set as the defrost detection heating operation start time by the outdoor sensor unit 9, and when that time is reached, the process proceeds to step S206 and about 15 minutes. A defrost detection heating operation for a minute is performed, and then the outdoor sensor unit 9 detects the pipe temperature of the outdoor heat exchanger.
[0062]
In step S207, it is determined whether or not the outdoor heat exchanger is in a frosted state based on the temperature value detected in step S206. If the defrosting operation is not required, the process proceeds to step S211. The preliminary heating operation is performed until the heating operation start time set in step S202.
[0063]
In step S212, the time-up time is determined. If the time is up, the process proceeds to step S213 and the heating operation is started.
[0064]
If it is determined in step S207 that the outdoor heat exchanger is in a frosted state, and the defrosting operation is necessary, the defrosting operation is started in step S208.
[0065]
In step S209, if the piping temperature of the outdoor heat exchanger rises to a predetermined value, the process proceeds to S210, where the defrosting operation is terminated, and then the process proceeds to step S211 and the preliminary heating is performed until the time-up time previously set in step S202. Carry out driving.
[0066]
In step S212, the time-up time is determined. If the time is up, the process proceeds to step S213, and the normal heating operation is started.
[0067]
The above defrosting sensing heating operation start time I, the selection of II (step S203) is performed by the defrosting detecting heating operation start time selecting means, said defrosting sensing heating operation start time selecting means provided in the indoor unit 1 This is realized by being included in the indoor controller 5.
[0068]
Further, it is of course possible to increase the threshold value of the temperature difference ΔT of the defrost detection heating operation start time selection means to a plurality, and to control by increasing the defrost detection heating operation start time as III, IV.
[0069]
Even when the temperature difference ΔT (= T1−T2) is large at the heating operation start time (time-up time) set by the timer by the above control, the defrost control is already finished and the preliminary heating operation is performed. Since the temperature has risen to a room temperature that is substantially close to the heating set temperature by the remote controller 3, a quick heating start-up is performed at the time when the heating operation start time is up, and even when the temperature difference ΔT (= T1−T2) is large, Improvement of warming performance at the start of heating can be realized.
[0070]
In the present embodiment, the defrost detection heating operation is described as about 15 minutes, and the time from the start of the defrost detection heating operation to the start of the heating operation is set as about 50 minutes and about 80 minutes. The optimum value is determined by the experimental value.
[0071]
Further, a frost detection means for detecting the frost state of the outdoor heat exchanger is provided, and further, a timer setting means capable of stopping the heating operation by the timer setting is set, and the heating operation stop time by the timer setting means is provided. After a predetermined time before (time up time), the frost detection means detects the presence or absence of frost on the outdoor heat exchanger, and if the frost state is present, after performing the defrosting operation before the time is up By stopping the operation, it is possible to improve the warming performance when the heating operation is started next time.
[0072]
This control will be described in detail with reference to the flowchart of FIG.
[0073]
In FIG. 5, in step S301, the heating operation conditions and the like are set by the remote controller 3, and the heating operation stop time is set in step S302.
[0074]
In step S303, for example, a predetermined time, for example, about 20 minutes before the heating operation stop time (time-up time) set in step S302 is set as the temperature detection start time of the outdoor heat exchanger by the outdoor sensor unit 9, When the time comes, the outdoor sensor section 9 detects the temperature of the outdoor heat exchanger.
[0075]
In step S304, it is determined whether or not the outdoor heat exchanger is in a frosted state based on the temperature value detected in step S303. If the defrosting operation is not required, the process proceeds to step S308. In step S302, the process waits until the time-up time set in step S302. When the time is up, the process proceeds to step S309, and the heating operation is stopped.
[0076]
If it is determined in step S304 that the outdoor heat exchanger is in a frosted state and a defrosting operation is necessary, the defrosting operation is started in step S305, and in step S306, the outdoor heat exchange is started. The defrosting operation is terminated when the pipe temperature of the vessel rises to a predetermined value.
[0077]
In step S307, when the completion of defrosting is confirmed, the four-way valve 14 and the like are switched to the heating operation side, wait until the time-up time previously set in step S302.
[0078]
With the above control, since the heating start-up is performed without the frost formation on the outdoor heat exchanger at the time of the next heating operation start-up, it is possible to improve the warming performance.
[0079]
【The invention's effect】
The present invention is implemented in the form as described above, and has the effects described below.
[0080]
The invention according to claim 1 is provided with frosting detection means for detecting the frosting state of the outdoor heat exchanger, and timer setting means for starting the heating operation by entering timer reservation setting, and is set by the timer setting means A predetermined time before the heating operation start time (time up time) is performed for a predetermined time for the defrosting detection heating operation for determining the defrosting operation, and then the frosting detection means is used to attach the outdoor heat exchanger. The presence or absence of frost is detected, and if it is in a frost state, after performing the defrosting operation, the heating preparatory operation is performed until the time-up time, and the heating operation is started after the time-up, so that the outdoor outside air temperature is adjusted. An outside air temperature detecting means for detecting is provided, and a defrost detection heating operation start time for selecting a defrost detection heating operation start time based on a detection value of the outside air temperature detected by the outside air temperature detecting means is further provided. Since the selection means is provided, at the heating operation start time (time up time) set by the timer, the defrosting control is already completed and the preliminary heating operation is performed, and the heating setting by the remote controller is performed even when the outside air temperature is low Since the temperature has risen to a room temperature that is close to the temperature, the heater starts up quickly when the heating operation start time is up.
In addition, even when the outside air temperature is low, it is possible to improve the warming performance when starting up the heating.
[0082]
Further, the invention according to claim 2 is provided with indoor heating temperature setting means and indoor suction temperature detection means for detecting the indoor temperature, and further, the heating set temperature set by the heating temperature setting means, the value of the temperature difference between the detected indoor side suction temperature by the chamber inner suction temperature detecting means, is provided with the defrosting sensing heating operation start time selecting means for selecting a defrosting sensing heating operation start time, the timer At the set heating operation start time (time-up time), the defrost control is already finished and the preliminary heating operation is started. Even when the temperature difference between the heating set temperature and the indoor suction temperature is large, the remote control Since the temperature has risen to a room temperature that is substantially close to the heating set temperature, a quick heating start-up is performed at the time when the heating operation start time expires, and the temperature difference Also improve the adoption warm at the time of heating start-up when large can be realized.
[0083]
The invention according to claim 3 is provided with frosting detection means for detecting the frosting state of the outdoor heat exchanger and timer setting means for stopping the heating operation by setting the timer to be turned off, and heating by the timer setting means. Predetermined time before the operation stop time (time up time), the frost detection means detects the presence or absence of frost on the outdoor heat exchanger. Since it stops, at the time of the next heating operation start-up, the heating start-up is carried out in a state where there is no frost on the outdoor heat exchanger, so that it is possible to improve the warming performance.
[Brief description of the drawings]
FIG. 1 is a control block diagram of an air conditioner according to an embodiment of the present invention. FIG. 2 is a control flowchart of an operation control device according to an embodiment of the present invention. FIG. 4 is a control flowchart of another operation control apparatus according to the embodiment of the present invention. FIG. 5 is a control flowchart of another operation control apparatus according to the embodiment of the present invention.
DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Outdoor unit 3 Remote control 5 Indoor control part 6 Indoor sensor part 7 Fan motor 8 System control part 9 Outdoor sensor part 10 Compressor 15 Four-way valve

Claims (3)

室外側熱交換器の着霜状態を検出する着霜検出手段と、入りタイマー予約設定により暖房運転を開始できるタイマー設定手段を設け、前記タイマー設定手段で設定された暖房運転開始時刻(タイムアップ時刻)よりも所定時間前に、除霜運転の判定を行うための除霜検知暖房運転を所定時間行い、その後前記着霜検出手段により前記室外側熱交換器の着霜の有無を検出し、着霜状態であれば除霜運転を行った後に暖房予備運転を前記タイムアップ時刻まで行いタイムアップの後、暖房運転を開始するようにした空気調和機の運転制御装置であって、室外側の外気温度を検出するための外気温度検出手段を設け、さらに前記外気温度検出手段により検出された外気温度の温度値により、除霜検知暖房運転開始時刻を選択するための除霜検知暖房運転開始時刻選択手段を設けてなる空気調和機の運転制御装置。 A frost detection means for detecting the frost state of the outdoor heat exchanger, and a timer setting means for starting the heating operation by entering the timer reservation setting are provided, and the heating operation start time (time-up time) set by the timer setting means is provided. ), A defrosting detection heating operation for determining the defrosting operation is performed for a predetermined time, and then the presence or absence of frosting of the outdoor heat exchanger is detected by the frosting detection means. If it is a frost state, after performing defrost operation, it is the operation control apparatus of the air conditioner which performed heating preliminary operation until the said time-up time, and started heating operation after time-up , Comprising: outside air temperature detecting means for detecting a temperature is provided, further wherein the temperature value of the detected outside air temperature by the outside air temperature detection means, defrosting sensing heating for selecting defrosting sensing heating operation start time Operation control device for air conditioner comprising providing a rolling start time selecting means. 室外側熱交換器の着霜状態を検出する着霜検出手段と、入りタイマー予約設定により暖房運転を開始できるタイマー設定手段を設け、前記タイマー設定手段で設定された暖房運転開始時刻(タイムアップ時刻)よりも所定時間前に、除霜運転の判定を行うための除霜検知暖房運転を所定時間行い、その後前記着霜検出手段により前記室外側熱交換器の着霜の有無を検出し、着霜状態であれば除霜運転を行った後に暖房予備運転を前記タイムアップ時刻まで行いタイムアップの後、暖房運転を開始するようにした空気調和機の運転制御装置であって、室内側の暖房温度を設定するための暖房温度設定手段と、室内温度を検出するための室内側吸い込み温度検出手段を設け、さらに前記暖房温度設定手段により設定された暖房設定温度と前記室内側吸い込み温度検出手段により検出された室内側吸い込み温度の温度差の値により、除霜検知暖房運転開始時刻を選択するための除霜検知暖房運転開始時刻選択手段を設けてなる空気調和機の運転制御装置。 A frost detection means for detecting the frost state of the outdoor heat exchanger, and a timer setting means for starting the heating operation by entering the timer reservation setting are provided, and the heating operation start time (time-up time) set by the timer setting means is provided. ), A defrosting detection heating operation for determining the defrosting operation is performed for a predetermined time, and then the presence or absence of frosting of the outdoor heat exchanger is detected by the frosting detection means. If it is a frost state, it is the operation control apparatus of the air conditioner which performed heating preliminary operation to the said time-up time after performing a defrosting operation, and started heating operation after time-up , Comprising: There is provided a heating temperature setting means for setting the temperature and an indoor suction temperature detection means for detecting the room temperature, and further, the heating set temperature set by the heating temperature setting means and the room The value of the temperature difference between the detected indoor side suction temperature by suction temperature detecting means, defrosting detecting heating operation start time defrosting detecting heating operation start time selecting means operation control of an air conditioner comprising providing for selection of apparatus. 室外側熱交換器の着霜状態を検出する着霜検出手段と、切りタイマー予約設定により暖房運転を停止できるタイマー設定手段を設け、前記タイマー設定手段により暖房運転停止時刻(タイムアップ時刻)の所定時間前に、前記着霜検出手段により前記室外側熱交換器の着霜の有無を検出し、着霜状態であれば除霜運転を行った後に運転を停止するようにした空気調和機の運転制御装置。Frosting detection means for detecting the frosting state of the outdoor heat exchanger, and timer setting means for stopping the heating operation by setting a timer to be turned off are provided. Operation of the air conditioner that detects the presence or absence of frost in the outdoor heat exchanger by the frost detection means before time and stops the operation after performing the defrost operation if it is in the frost state Control device.
JP2000015319A 2000-01-25 2000-01-25 Air conditioner operation control device Expired - Lifetime JP3835102B2 (en)

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