JP3823835B2 - Washing and drying machine - Google Patents

Washing and drying machine Download PDF

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Publication number
JP3823835B2
JP3823835B2 JP2002014966A JP2002014966A JP3823835B2 JP 3823835 B2 JP3823835 B2 JP 3823835B2 JP 2002014966 A JP2002014966 A JP 2002014966A JP 2002014966 A JP2002014966 A JP 2002014966A JP 3823835 B2 JP3823835 B2 JP 3823835B2
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Japan
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water
washing
outer tub
tub
water supply
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JP2002014966A
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JP2003210886A (en
Inventor
常利 小松
雅代 川原
勝寿 會田
功 桧山
年恭 釜野
裕一郎 高宗
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Hitachi Ltd
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Hitachi Ltd
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【0001】
【発明の属する技術分野】
本発明は、洗濯乾燥機に関する。
【0002】
【従来の技術】
洗濯乾燥機は、洗い運転においては、水道水(洗い水)を供給後に、攪拌翼を正逆回転させ、洗濯衣類に機械力を作用させる洗い運転を実行し、その後、水道水(濯ぎ水)を供給すると共に洗濯衣類に同様に機械力を作用させる濯ぎ運転を実行し、その後、洗濯兼脱水槽を回転させることにより洗濯衣類に含まれる濯ぎ水を遠心脱水する脱水運転を実行し、更にその後に、洗濯兼脱水槽に温風を供給して洗濯物を乾燥させる乾燥運転を実行する構成である。このような一連の運転を実行する洗濯乾燥機として、特開平11-347281号公報や、特開平11-347282号公報や、特開平11-347296号公報等がある。
【0003】
しかし、攪拌翼を具えた洗濯乾燥機では、乾燥運転における衣類等の皺が付きやすい。
【0004】
【発明が解決しようとする課題】
本発明の目的は、衣類等の皺を低減できる洗濯乾燥機を提供することにある。
【0005】
【課題を解決するための手段】
上記課題を解決するために、本発明は、枠体と、前記枠体に吊下支持された外槽と、前記外槽内に回転自在に設置された洗濯兼脱水槽と、前記外槽下部から前記外槽内の空気を吸い込んで循環通路を介して再び前記外槽内に戻すファンと、前記循環通路内に設けられたヒ−タと、洗濯水を給水する給水手段と、前記給水手段のほかに前記循環通路内に給水する給水手段と、排水電磁弁を有し前記排水電磁弁を開くことによって前記外槽に給水された水を排水する排水手段と、前記給水手段及び前記排水手段を制御する制御手段を有し、洗濯運転、乾燥運転、送風運転を行う洗濯乾燥機において、前記ファンを運転することにより前記循環通路を流れる空気を前記ヒータで加熱して前記洗濯兼脱水槽内の洗濯物を乾燥させる前記乾燥運転を行った後、前記外槽内にヒータの発熱を停止した状態、かつ前記排水電磁弁を閉じ前記循環通路内に給水する前記給水手段で前記外槽内に給水し前記洗濯兼脱水槽の底部より下方の前記外槽内に水を溜めた状態で、前記送風運転を行なうことを特徴とする。
【0006】
【発明の実施の形態】
本発明に係る以下の実施例は、枠体と、前記枠体に吊下支持された外槽と、前記外槽内に回転自在に設置された洗濯兼脱水槽と、前記外槽へ給水する給水手段と、前記外槽に給水された水を排水する排水手段と、前記給水手段及び前記排水手段を制御する制御手段を有し、洗濯運転、乾燥運転、送風運転を行う洗濯乾燥機であって、前記給水手段により前記外槽へ給水して前記送風運転を行なう。この構成によれば、乾燥運転でついた衣類の皺の低減を図ることが出来る。
【0007】
本発明に係る以下の実施例は、枠体と、前記枠体に吊下支持された外槽と、前記外槽内に回転自在に設置された洗濯兼脱水槽と、前記外槽へ給水する給水手段と、前記外槽に給水された水を排水する排水手段と、前記給水手段及び前記排水手段を制御する制御手段を有し、洗濯運転、乾燥運転、送風運転を行う洗濯乾燥機であって、前記給水手段により前記外槽へ給水し前記外槽に水を溜めた状態で前記送風運転を行い、前記排水手段で前記外槽内の水を排水する。この構成によれば、乾燥運転でついた衣類の皺を、蒸らし効果により低減することができ、また外槽の冷却を行なうことが出来る。本発明に係る以下の実施例は、枠体と、前記枠体に吊下支持された外槽と、前記外槽内に回転自在に設置された洗濯兼脱水槽と、前記外槽下部から前記外槽内の空気を吸い込んで循環通路を介して再び前記外槽内に戻すファンと、前記通路内に設けられたヒ−タと、前記通路内に給水する給水手段と、前記外槽に給水された水を排水する排水手段と、前記給水手段及び前記排水手段を制御する制御手段を有し、洗濯運転、乾燥運転、送風運転を行う洗濯乾燥機であって、前記送風運転で前記給水手段により前記外槽へ給水して前記外槽内に水を貯留し前記排水手段で排水するサイクルを複数回行う。この構成によれば、乾燥運転でついた衣類の皺を、蒸らし効果により低減することができ、また外槽の冷却を効率良く行うことが出来る。
【0008】
本発明に係る以下の実施例は、前記給水手段により前記洗濯兼脱水槽底部より下方の前記外槽に水を貯留した状態で前記送風運転を行。この構成によれば、乾燥運転で乾いた衣類を水に浸すことなく蒸らすことが出来る。
【0009】
本発明に係る以下の実施例は、前記洗濯兼脱水槽上部には衣類投入口及び前記衣類投入口を覆う蓋を有し、前記制御手段は前記給水手段により前記外槽へ給水して水を貯留し、前記蓋を開いた場合に前記排水手段により前記外槽内の水を排水する。この構成によれば、衣類を取り出すまでの間衣類をある程度蒸らした状態に出来る。
【0010】
本発明に係る以下の実施例は、前記洗濯兼脱水槽上部には衣類投入口及び前記衣類投入口を覆う蓋を有し、前記制御手段は前記給水手段により前記外槽へ給水して水を貯留し、前記蓋を開いた場合又は運転終了後所定時間経過に前記排水手段により前記外槽内の水を排水する。この構成によれば、衣類を取り出すまでの間衣類をある程度蒸らした状態に出来るとともに、衣類の湿りを軽減することが出来る。
【0011】
本発明に係る以下の実施例では、前記給水手段として自吸式ポンプを備える。この構成によれば、節水が可能である。
【0012】
【実施例】
図1は、本発明の一実施の形態である洗濯乾燥機を縦断面して示す模式図ある。
1は、外枠を構成する枠体である。2は、洗濯兼脱水槽であり、その周壁に通水穴2aを有し、その上縁部に流体バランサー3を備え、底部の内側には回転自在に回転体4を設置する。回転体4は、大径(洗濯兼脱水槽2の直径の90%以上が望ましい)で周縁部を立ち上げるように湾曲させた形状で、低位領域に通水穴4aを設ける。5は、前記洗濯兼脱水槽2を内包する外槽であり、底部の外側に駆動装置6を鋼板製の取り付けベース7によって取り付け、外枠1の上端部の四隅から防振支持装置8によって吊下支持する。
【0013】
駆動装置6は、駆動電動機と電動操作クラッチ機構と遊星歯車減速機構を内臓し、洗濯兼脱水槽2を静止させた状態で回転体4を回転(攪拌モード)させ、洗濯兼脱水槽2と回転体4をそれぞれ反対方向に回転(洗濯モード)させ、洗濯兼脱水槽2と回転体4を一体的に同一方向に回転(脱水・乾燥モード)させるような選択的な駆動機能を有する。
【0014】
衣類投入口9aを形成した上面カバー9は、枠体1の上部開口を覆うように該開口端縁に嵌め込み、フロントパネル10およびバックパネル11と共に取り付けねじによって枠体1に取り付ける。
【0015】
上面カバー9とフロントパネル10の間に形成されるフロントパネルボックス12には、電源スイッチ13と入力スイッチ群および表示素子群を備えた操作パネル14と、外槽5内の水位に応じた水位信号を発生する水位センサ15と、コントロールユニット16を内臓する。これらは、制御装置を構成する。
【0016】
上面カバー9とバックパネル11の間に形成されるバックパネルボックス17には、洗濯水給水手段と高濃度洗剤液生成手段を横並びに設置するように内蔵する。
【0017】
洗濯水の給水手段は、入水側を水道接続口18に接続し、出水側を注水口19に接続した主給水電磁弁20によって構成する。
【0018】
高濃度洗剤液生成・供給手段は、補助給水電磁弁22から洗剤溶解容器21に少量の洗剤溶解水を供給し、この洗剤溶解容器21内に投入されている粉末合成洗剤を攪拌しながら前記洗剤溶解水で溶解して高濃度洗剤液を生成する。洗剤溶解容器21は、給水口19に連なる溢水部(図示省略)を有し、生成した高濃度洗剤液を更なる給水(希釈給水)によって希釈して増量することにより前記溢水部から溢水させて注水口19に供給する。高濃度洗剤液を生成するための洗剤溶解水、洗剤溶解容器21の溢水部から溢水しない程度の少量に設定し、希釈給水時には、洗濯物に浸沈させるのに好ましい洗剤濃度に希釈するために、主給水電磁弁20も開放して追加の希釈水を注水口19に供給するように構成する。
【0019】
洗剤溶解容器21に仕上剤投入器を付設したときには、仕上剤を流し出すための補助給水電磁弁22aを設ける。
【0020】
温風供給手段は図1に示すように、外槽5下部の5aから吸い込んだ空気をダクト27を通ってヒータ29で加熱して吹き出し口30から吹き出すものである。 温風乾燥手段は、外槽5の底部近くの側壁に形成した吸い出し口5aから該外槽5の後側の外壁面に沿って垂直状態で上向きに伸びるように形成して前記吸い出し口5aから浸入した洗濯水を堰き止める水冷除湿ダクト23と、この水冷除湿ダクト23内の上部に位置して該ダクト内から外槽5に冷却水を供給する給水手段である冷却散水部24と、洗濯運転における外槽5の水位よりも高い位置で折り返して該外槽5の外壁面に沿って該外槽5の下側に向かって垂直に伸びる下降風路ダクト25と外槽5の下側の空間に配置されて前記下降風路ダクト25から空気を吸い込んで循環空気を生成する循環ファン26と、この循環ファン26の吐出し口から外槽5の外壁面に沿って上方向に垂直状態に伸びる上昇風路ダクト27と、外槽上カバー28上に設置されて前記上昇風路ダクト27から送り込まれる循環空気を加熱するヒータ(PTCヒータ)29と、ヒータ29によって加熱された循環空気を洗濯兼脱水槽2内に向けて吹き込む吹き出し口30を備える。
【0021】
下降風路ダクト25内には湿度検知手段である湿度センサ40と第1温度センサ41を設置し、ヒータ29の下流側の風路内には第2温度センサ42を設置する。
【0022】
また、水冷除湿ダクト23の上部から下降風路ダクト25への折り返し部に糸屑捕集フィルタ―(図示省略)を設置する。
【0023】
前記水冷除湿ダクト23,下降風路ダクト25および上昇風路ダクト27は、外槽5の周方向に並べて実装する。
【0024】
そして、この温風乾燥手段は、洗濯後に外槽5内の洗濯水を排水し、洗濯兼脱水槽2を高速回転させて脱水した後に低速回転させながら循環ファン26を運転することによって、外槽5および洗濯兼脱水槽2内の湿潤空気を吸い出し口5aから吸い出し、水冷除湿ダクト23内を上昇させる過程において冷却散水部24から該水冷除湿ダクト23内に供給される冷却水によって冷却して除湿する。その後、冷却除湿した空気は、下降風路ダクト25を下降させて循環ファン26に吸い込み、この循環ファン26から上昇風路ダクト27とヒータ29を通して吹き出し口30に送り込み、ヒータ29によって加熱して洗濯兼脱水槽2内の内壁面付近に向けて該洗濯兼脱水槽2の回転方向に対して逆向きに吹き込む。このように洗濯兼脱水槽2に吹き込まれた循環空気は、洗濯兼脱水槽2内の洗濯物に触れて該洗濯物を乾燥する。
【0025】
上面カバー9に形成した衣類投入口9aは、蓋31によって開閉自在に覆い、外槽上カバー28に形成した開口28aは、内蓋32によって開閉自在に覆うように構成する。
【0026】
外槽5の底に形成した排水口5bは、外槽5内の水を排水する排水手段である排水電磁弁33を介して排水ホース34に接続する。エアートラップ5cは、エアーチューブ35を介して前記水位センサ15に接続する。枠体1の下端縁には、四隅に脚36を取り付けた合成樹脂で形成されたベース37を装着する。
なお、参照符号38は、洗濯兼脱水槽2内に投入された洗濯物である。
【0027】
図2は、前述した洗濯乾燥機の具体的な構成を示す縦断面図である。図1の説明と重複する説明は一部省略する。
駆動装置6は駆動電動機61と電動操作クラッチ機構62と遊星歯車減速機構63と中心出力軸64と外側出力軸65を備え、鋼板製の取付けベース7の下面上に一体的に組み立て、この取付けベース7を外槽5の底下面にねじ止めすることにより取付ける。
【0028】
駆動電動機61は、複数段または無段変速の可逆回転型の電動機とする。この実施の形態においては、検出時に洗濯兼脱水槽2を静止させた状態で回転体4を回転させる回転速度と、湿潤給水時に洗濯兼脱水槽2と回転体4を一体的に回転させる回転速度と、高濃度洗剤液を洗濯物に降りかけて浸沈させるときに洗濯兼脱水槽2および、または回転体4を正転および逆回転を繰り返させる回転速度と、洗濯時に遊星歯車減速機構の太陽歯車を回転させる回転速度と、脱水時に洗濯兼脱水槽2と回転体4を一体的に950rpmで回転させる回転速度と、温風乾燥時に洗濯兼脱水槽2と回転体4を一体的に700rpmと100rpmと35rpmで回転させ、回転体4を単独で回転させる回転速度を設定した。
【0029】
遊星歯車減速機構63は、遊星歯車を支持するキャリアを中心出力軸64に結合し、内歯車を外側出力軸65に結合し、太陽歯車を駆動電動機61に直に結合した機構である。
【0030】
そして、電動操作クラッチ機構62は、電動操作機62aによって操作レバー62bを操作することによって、攪拌モードと洗濯モードと脱水・乾燥モードに選択的に設定する。攪拌モードでは、遊星歯車減速機構63の内歯車を静止部材に係合させることによって洗濯兼脱水槽2に静止力を作用させた状態で駆動電動機61の回転力を遊星歯車減速機構63と中心出力軸64を介して回転体4に伝達して該回転体4を回転させて該回転体4に作用する負荷量に基づく布量検出および布質検出を実行させる。洗濯モードでは、遊星歯車減速機構63の内歯車を回転自由にした状態で駆動電動機61によって太陽歯車を回転させることによって該駆動電動機61の回転力を中心出力軸64および外側出力軸65の双方に反対向きに伝達して洗濯兼脱水槽2と回転体4に反対向きに繰り返し正逆回転させて洗濯を実行させる。そして、脱水・乾燥モードでは、遊星歯車減速機構62の内歯車を駆動電動機61と連結状態として該駆動電動機61によって太陽歯車と内歯車を一体的に回転駆動し、中心出力軸64および外側出力軸65を同一方向に回転させて洗濯兼脱水槽2と回転体4に同一方向に低速回転させて湿潤給水を実行させ、高速回転させて遠心脱水を実行させ、各種の速度で回転させて温風乾燥を実行させる構成である。
【0031】
図3は、この洗濯乾燥機の電気的構成を示すブロック図である。
【0032】
電源スイッチ13を介して受電する制御手段であるコントロールユニット16は、マイクロコンピュータ16aを中心として構成し、電源回路16bと、駆動装置6と主給水電磁弁20と補助給水電磁弁22と洗剤攪拌電動機39と排水電磁弁33と循環ファン26とヒータ29と冷却散水電磁弁24aへの給電を制御するための半導体交流スイッチング素子(FLS)群を有する駆動回路16cとを備える。
【0033】
前記駆動装置6の駆動電動機61は、固定子巻線61aと回転センサ61bを有し、電動操作クラッチ機構62は、電動操作機62aと動作位置を検出する位置センサ62cを有する。
【0034】
そして、前記駆動回路16cは、駆動装置6における前記駆動電動機61の固定子巻線61aへの給電制御に関しては、正逆回転制御用に2つの半導体交流スイッチング素子(FLS)16c1,16c2を備える。FLS16c1は、正回転給電制御用の半導体スイッチング素子、FLS16c2は逆回転給電制御用の半導体交流スイッチング素子である。この実施の形態において、駆動電動機61の回転速度制御は、固定子巻線61aへの給電をFLS16c1,16c2によって位相制御することによって行うように構成しているが、インバータ駆動のブラシレス電動機を使用する構成においては、PWM制御やPAM制御によって行うように構成することができる。また、駆動装置6における電動操作クラッチ機構62の電動操作機62aへの給電を制御するためのFLS16c3を備える。
【0035】
また、駆動回路16cは、主給水電磁弁20,給水電磁弁22,洗剤攪拌電動機39,排水電磁弁33,循環ファン26,ヒータ29,冷却散水電磁弁24aへの給電を制御するFLS16c〜416c10を備える。そして、この駆動回路16cは、マイクロコンピュタ16aからの指示に従ってFLS16c1〜FLS16c10の導通状態を制御して従属する負荷への給電制御を行う。
【0036】
マイクロコンピュタ16aは、更に、前記駆動電動機61の回転センサ61b,電動操作クラッチ機構62の位置センサ62c,外槽5内の洗濯水位を検出する水位センサ15,湿度センサ40,第1,第2温度センサ41,42,アンバランス検出センサ43,操作パネル14に接続し、予め組み込まれた制御処理プログラムを実行することにより、操作パネル14の入力スイッチ群14aと水位センサ15と回転センサ61bと位置センサ62cと湿度センサ39と第1,第2温度センサ41,42とアンバランス検出センサ43からの信号を取り込み、駆動回路16cを制御することによって、検出,高濃度洗剤液生成,洗濯物湿潤,高濃度洗剤液生成・供給(浸沈),洗い,濯ぎ,脱水および温風乾燥の各運転を実行し、操作パネル14の表示素子群14bを制御することによってその進行状況を表示する。ここで、アンバランス検出センサ43は、洗濯兼脱水槽2を回転させたときに該洗濯兼脱水槽2内の洗濯物38の分布のアンバンスによって該洗濯兼脱水槽2(外槽5)が所定値以上に大きく振れるのを検出するセンサである。
【0037】
操作パネル14の入力スイッチ群14aは、実行する運転(洗濯・乾燥)の種類を設定するコース設定スイッチや洗濯物(乾燥物)に応じて洗濯および乾燥の実行方法を設定するモード設定スイッチを備える。コース設定スイッチには、洗濯・乾燥コース,洗濯コース,乾燥コースを選択的に設定する設定スイッチを設け、モード設定スイッチには、標準モード,ワイシャツモード,毛布モード,生乾燥モード,ドライモード,仕上げモード,小物乾燥モードを選択的に設定するスイッチを設ける。
【0038】
ここで、洗濯・乾燥コースは、洗濯運転、乾燥運転、送風運転を一貫して実行するコースであり、洗濯コースは、洗いから遠心脱水までの洗濯運転を実行するコースであり、乾燥コースは、洗濯および脱水されている洗濯物の乾燥運転及びその後に続く送風運転を実行するコースである。
【0039】
次に、運転について説明する。
【0040】
図4は、制御手段であるコントロールユニット16内のマイクロコンピュータ16aが実行する前記各運転のフローチャートである。
【0041】
マイクロコンピュータ16aは、電源スイッチ13が投入されると次のような制御処理を実行する。
ステップ401
洗濯兼脱水槽2に洗濯衣類38を投入し、操作パネル14の入力スイッチ群14aを操作して初期設定を行い、洗濯・乾燥開始ボタンスイッチが押されると、各運転の自動制御処理をスタートする。
前記初期設定は、前記コースとモードを選択して設定する。ここでは、洗濯・乾燥コースが設定されたときの運転制御を例示する。
ステップ402
洗濯物38の布量の検出制御処理を行う。この布量検出は、給水前の乾布状態において、駆動装置6の電動操作クラッチ機構62を攪拌モードに制御し、駆動電動機61を短時間付勢して回転体4を回転駆動し、消勢時の惰性回転における減速特性に基づいて検出する。この検出結果(洗濯物の布量)に基づいて洗い水量および好ましい洗剤濃度の洗い水を生成するための洗剤量を演算して決定し、この洗剤量を表示素子群14bによって表示して相当する量の粉末合成洗剤を洗剤溶解容器21に投入させる。
ステップ403
駆動装置6の電動操作クラッチ機構62を脱水・乾燥モードに制御し、駆動電動機61を低速運転して洗濯兼脱水槽2と回転体4を低速回転させながら主給水電磁弁20を開いて水道水を注水口19に直に供給して該水道水を洗濯兼脱水槽2内の洗濯物38上に散布する。洗濯物38は、散布された水道水を吸水して湿潤し、嵩が低減する。このときの水道水の散布量は、検出運転によって検出した洗濯物38の量に応じて制御し、洗濯物38の量が少ないときには少なくし、多くなるにつれて多くなるように制御する。洗濯物38に散布する水道水量は、例えば、洗濯物38の量が4kg未満の場合には4L(リットル)程度,4kg〜8kgの場合には10Lとする。この量の給水は、主給水電磁弁20の開弁時間によって制御する。
そして、水道水を洗濯物38内に十分に浸透させるように、必要に応じて、湿潤状態で所定時間据え置くようにする。この据え置き時間は、洗濯物38の量と散布した水道水の量に応じて制御する。散布された水道水を洗濯物38に十分に浸透させるための据え置き時間中は、洗濯兼脱水槽2を停止させた状態にしても良いが、早く浸透させるためには洗濯兼脱水槽2を低速度で回転させると良い。
ステップ404
補助給水電磁弁22を開いて洗剤溶解容器21に溢水しない程度の少量の水道水(洗剤溶解水)を供給し、好ましい洗剤濃度の洗い水を生成するために投入した洗剤溶解容器21内の粉末合成洗剤を回転体で攪拌しながら少量の洗剤溶解水で溶解することによって高濃度洗剤液を生成する。洗剤溶解水の量は、洗剤溶解容器21の溢水部から溢水せず、回転体によって粉末合成洗剤を攪拌しながら該粉末合成洗剤を良く溶解するのに好適な水量に設定する。
ステップ405
駆動装置6の電動操作クラッチ機構62を脱水・乾燥モードに制御し、駆動電動機61を低速運転して洗濯兼脱水槽2と回転体4を低速度で回転させながら補助給水電磁弁22を開いて洗剤溶解容器21に希釈給水することによって高濃度洗剤液を希釈して溢水部から溢水させることにより注水口19に送り込むと共に主給水電磁弁20を開いて注水口19に注水して高濃度洗剤液を好ましい高濃度洗剤液に希釈して洗濯兼脱水槽2内の洗濯物38に降りかけて該洗濯物38に浸沈させる。
【0042】
洗濯物38に浸沈した高濃度洗剤液は、その化学的な高い洗浄力を洗濯物38に作用させて洗浄力を高めることから、洗い運転において洗濯物38に作用させる機械力を減少させて布傷みや布絡みを軽減させることを可能にする。
【0043】
粉末合成洗剤は、汚れを落す界面活性剤と、活性剤を補助するアルカリ剤,ゼオライト,酵素,再付着防止剤などのビルダー、蛍光増白剤などの添加剤を含んでいる。ゼオライトは、水道水に含まれている金属イオンを除去(軟水化)して金属石鹸の生成を抑制することにより、洗い水中の有効な界面活性剤の量の減少を抑制するように機能するが、粉末合成洗剤を多量の水道水に溶解して生成した洗い水では、ゼオライトの量が不足して有効な界面活性剤が大幅に減少してしまう。
【0044】
しかしながら、少量の水道水(洗剤溶解水)で粉末合成洗剤を溶解して生成した高濃度洗剤液(例えば、洗い水の洗剤濃度の10倍の洗剤濃度)は、金属イオンの量が少ないことから、ゼオライトが十分に機能して有効な界面活性剤の減少を極めて少量(約2%程度)に抑制することができる。従って、このような高濃度の洗剤液を洗濯物に降りかけて浸沈させることにより、洗剤液が洗濯物(汚れ衣類)に高速(洗い水の約4倍の速度)で浸透して素早く汚れに到達し、界面活性剤が汚れの乳化,分散を促進し、アルカリ材が油汚れの膨潤,鹸化を促進し、酵素が脂肪や蛋白質の汚れを分解する洗浄力を発揮する。
ステップ406
洗濯物38に降りかけた高濃度洗剤液が該洗濯物38内に浸透・浸沈するのを促進するための時間であって、省略することもできる。
ステップ407
主給水電磁弁20および補助給水電磁弁22を開いて水道水(洗い水)の給水を開始する。この洗い水の給水は、ステップ402において決定した水量まで行うが、給水の途中で洗濯物38の布量(湿布値),布質を検出するために中断する。この中断水位は、マイクロコンピュ―タ16aに予め設定された湿布布量および布質検出に適した水位である。
ステップ408
湿布布量と布質を検出して洗い水給水量の補正と洗い,脱水,乾燥運転における制御定数の決定を行う。この布質検出は、所定の低水位で給水を中断して駆動装置6の電動操作クラッチ機構62を検出モードに制御し、駆動電動機61を短時間付勢して回転体4を回転駆動し、消勢時の惰性回転における第1の減速特性(湿布布量)を検出し、次いで、給水を再開して所定の高水位まで洗い水を補給した後に給水を中断して駆動装置6の駆動電動機61を短時間付勢して回転体4を回転駆動し、消勢時の惰性回転における第2の減速特性を検出し、この第1の減衰特性と第2の減衰特性の差に基づいて洗濯物38の布質を検出する。この布質検出制御は、初期設定により不要になったときには、省略する。そして、布質に応じて、洗いおよび濯ぎ運転における時間と水流(機械的攪拌の強さ)や乾燥運転における制御定数を決定する。
ステップ409
ステップ402で決定した水量まで水道水を給水する。この給水により、洗い水は、高濃度洗剤液を更に希釈して洗いに好ましい洗剤濃度となる。これにより、洗濯物38は、洗濯兼脱水槽2内で所定の洗剤濃度の洗い水に浸した状態とり、洗濯兼脱水槽2や回転体4を回転させて洗濯物38に機械的な洗浄力を作用させるのに好適な状態となる。
ステップ410
ステップ408において設定した洗い水流と洗い時間の洗い運転を行うように駆動装置6を制御する。この洗い運転において,駆動装置6は、電動操作クラッチ機構62を洗濯モードに制御し、駆動電動機61を正逆運転を繰り返すことによって洗濯兼脱水槽2と回転体4を反対向きに繰り返し正逆回転させて洗濯物38に機械的な洗浄力を作用させる。洗濯物38に作用させる機械(攪拌)力は、洗濯兼脱水槽2および回転体4の正逆回転のON-OFF時限を調整したり、回転数を調整したり、洗い(攪拌)時間を調整したりすることによって制御することができる。
【0045】
この洗濯乾燥機は、高濃度洗剤液の化学的な高い洗浄力を利用するようにしているので、小さい機械(攪拌)力でも従来の洗浄方式よりも洗濯物38の汚れが良く落ちるようになることから、洗濯物38の傷みや絡みを低減することができる。
ステップ411
排水電磁弁33を開いて洗い水を機外に排水する。
ステップ412
主給水電磁弁20と補助給水電磁弁22を開いて濯ぎ水(水道水)を設定水量まで給水する。必要に応じて、補助給水電磁弁22aを開いて仕上剤を混入させる。
ステップ413
駆動装置6を制御して濯ぎ運転を実行する。
ステップ414
排水電磁弁33を開いて濯ぎ水を機外に排水する。
ステップ415
排水電磁弁33を開いたままにして駆動装置6の電動操作クラッチ機構62を脱水・乾燥モードに制御し、駆動電動機61を高速運転することによって洗濯兼脱水槽2と回転体4を一体的に950rpmの高速度で回転させることにより洗濯物38の水分を遠心脱水する。この遠心脱水が終了した状態では、洗濯物38は、洗濯兼脱水槽2の側壁に押し付けられて側壁面に付着した状態にある。
ステップ416
駆動装置6の電動操作クラッチ機構62を脱水・乾燥モードに制御し、駆動電動機61を運転して洗濯兼脱水槽2と回転体4を回転させながら循環ファン26を運転して外槽5内の空気を吸い出し口5aから吸い出し、水冷除湿ダクト23内を通過するときに冷却散水部24から該水冷除湿ダクト23内に供給する冷却水によって冷却除湿し、下降風路ダクト25を通して循環ファン26に吸い込み、この循環ファン26から上昇風路ダクト27とヒータ29を通して吹き出し口30に送り込み、ヒータ29によって加熱して洗濯兼脱水槽2内の内壁面付近に向けて該洗濯兼脱水槽2の回転方向に対して逆向きに吹き込む循環空気を生成し、洗濯兼脱水槽2内の洗濯物を乾燥する。
【0046】
この乾燥運転は、基本的には、予め設定した所定のタイムスケジュールに従って、前述したように、洗濯兼脱水槽2と回転体4を回転させながら、循環ファン26を運転して洗濯兼脱水槽2(外槽5)内の空気をダクト23,25,27を通して循環させ、冷却散水部24から散水して循環空気を水冷除湿し、水冷除湿した循環空気をヒータ29によって加熱することにより実行するが、設定されているモードや洗濯物38の量や循環空気の湿度(洗濯物38の乾燥度)や温度やアンバランス検出結果に応じて洗濯兼脱水槽2および回転体4の回転制御や循環ファン26の運転制御やヒータ29の発熱制御や冷却散水部24の散水制御を実行する。
【0047】
この乾燥運転における洗濯兼脱水槽2の回転は、準高速回転速度としての700rpmと、低速回転速度としての100rpmと、超低速回転速度としての35rpmを設定する。これらの各回転速度の具体値は、この値に制約されるものではなく、必要に応じて変更し得る。例えば、布量、布質に応じて変化させることが好ましい。準高速度回転による洗濯兼脱水槽2の回転を行う第1の乾燥運転は、乾燥運転の初期の初期加熱段階で行って洗濯物38の遠心脱水と加熱乾燥を促進させるのに好適である。この初期加熱段階では、循環空気の水冷除湿を行わない。第1の乾燥運転よりも低速回転速度で洗濯兼脱水槽2を回転させる第2の乾燥運転では、その後に実行する水冷除湿乾燥段階で循環空気が洗濯兼脱水槽2内に満遍なく吹き込まれて洗濯物38に触れるようにするのに好適である。そして、超低速回転速度による洗濯兼脱水槽2の回転は、ワイシャツモードや毛布モードやドライモードや小物乾燥モードにおいて乾燥物38を緩速回転させながら循環空気を吹き込んで乾燥させるのに好適である。
【0048】
洗濯物38のアンバランスによる洗濯兼脱水槽2(外槽5)の振れは、洗濯兼脱水槽2の回転速度が高いほど大きくなるので、前記準高速回転速度において振れを検出したときには低速回転速度に変更し、低速回転において振れを検出したときには超低速回転速度に変更する速度制御を行うことにより、振れによる不都合(振動や騒音)を軽減しながら温風乾燥を継続する。振れを検出することによって回転速度を低下させたときには、乾燥時間を延長することにより必要な乾燥度まで乾燥させる。
【0049】
温風循環経路(特に糸屑捕集フィルタ)に目詰まりが発生すると循環空気の風量が減少して乾燥効率が低下する。この目詰まり検出は、ヒータ29の前後の循環空気(第1,第2温度センサ41,42の検出温度)の温度差を監視するかヒータ29の消費電流の大きさを監視して行うようにする。循環空気の温度差は、糸屑捕集フィルタが目詰まりして循環空気の風量が減少すると大きくなり、ヒータ29の消費電流は、PTCヒータを使用していることから、糸屑捕集フィルタが目詰まりして循環空気の風量が減少すると少なくなることから、循環空気の温度差またはヒータ29の消費電流の大きさを監視することにより、糸屑捕集フィルタの目詰まりの程度を検出することができる。
【0050】
また、洗濯兼脱水槽2内の空気の温度の過渡の上昇は、洗濯物38や洗濯乾燥機の構成部品、特に樹脂成形部品を過熱状態にして傷めることになる。このような過熱を防止するために、吹き出し口30から洗濯兼脱水槽2に吹き込む循環空気の温度(第2温度センサ41の検出温度)が106℃に到達したときにはヒータ29への給電量を減少させるように制御する。
【0051】
また、温風乾燥中に温風が洗濯物38に片寄った状態で当たり続けて該洗濯物38の局部的(表面部分)な乾燥を進めて該部の温度が局部的に上昇するのを防止するためには、乾燥の進行度合いに応じて洗濯物38の入れ替え(反転)やほぐしを行って温風が該洗濯物38に満遍なく触れるようにすることが望ましい。この洗濯物38の入れ替え(反転)やほぐしのための攪拌は、洗濯物38の量や乾燥の進行状態(乾燥度や運転時間経過)に応じた攪拌力で行うようにすることが望ましい。攪拌力の強さは、回転体4の回転速度や回転時間によって変えることができる。そして温度センサ41,42や湿度センサ40などにより乾燥度が約90%を検出したり、又は乾燥運転開始から所定時間(300分)経過すると衣類が乾燥したとしてPTCヒ−タ29の通電を切る。
ステップ417
ステップ417では送風運転を実行する。この送風運転は、ヒータ29の発熱を停止(オフ)させ、洗濯物38の入れ替え(反転)およびほぐしを所定時間(ここでは20分間を設定)繰り返すように駆動装置6を制御する。また、送風運転では送風運転開始から3分後に給水手段である冷却散水部24から0.3L/minで水を7分間外槽に給水する。このようにすることで、乾燥運転中に衣類についた皺の低減を図ることが出来る。また冷却散水部24から給水しているときは排水電磁弁33を閉じて所定量の水を外槽5に溜めた後、排水電磁弁33を開いて排水することが望ましい。
このようにすることで外槽の冷却も効率良く行なうことが出来る。
送風運転開始から13分になったら、再度、排水電磁弁33を閉じて水溜を外槽5内に貯留し、送風運転開始から20分後に排水電磁弁33を開いて排水する。このように外槽内に水を貯留及び排水するサイクルを複数回行なうことで外槽の冷却を効率良く行うことが出来る。
送風運転で冷却散水部24から外槽5へ最後に給水する際、排水電磁弁33は閉じた状態にしておく。このようにしておくことで、洗濯兼脱水槽2内の衣類を湿った状態にすることが出来る。
給水は冷却散水部24により洗濯兼脱水槽2の底部より下方の外槽内に行なうことが望ましい。これにより乾燥運転で折角乾いた衣類を水に浸すことなく蒸らすことが出来る。
その後、循環ファン26,冷却散水電磁弁24aを停止(オフ)して送風運転を終了する。
ステップ418では、送風運転を終了したら5分毎に攪拌する運転を行なう。そしてステップ419で送風運転の終了から120分経過した場合、又はステップ420により蓋31が開いたことを図示しないスイッチにより検知した場合には排水電磁弁33を開けて駆動装置6を停止(オフ)して運転を終了する。
このように蓋31を開けるまで排水を行なわないようにすることで衣類を取り出すまでの間衣類をある程度蒸らした状態に出来、送風運転終了後所定時間経過に排水手段により外槽内の水を排水することで衣類の湿りを軽減することが出来る。尚、衣類を蒸らす給水手段として冷却散水部24の他、主給水電磁弁20や図示しない自吸式ポンプによってもよい。自吸式ポンプを用いれば更なる節水が可能である。
【0052】
【発明の効果】
本発明によれば、衣類等の皺を低減することができる洗濯乾燥機を提供できる。このとき、循環通路内に給水する給水手段により洗濯兼脱水槽の底部より下方の外槽内に給水することにより、乾燥運転で乾かした衣類を水に浸すことなく蒸らすことが出来る。
【図面の簡単な説明】
【図1】本発明の一実施の形態である洗濯乾燥機を縦断面して示す模式図である。
【図2】 図1に示した洗濯乾燥機の具体的な構成を示す縦断面図である。
【図3】図1および図2に示した洗濯乾燥機の電気的構成を示すブロック図である。
【図4】図3に示したコントロールユニット内のマイクロコンピュータが実行する洗濯運転、乾燥運転および送風運転のフローチャートである。
【符号の説明】
2…洗濯兼脱水槽、6…駆動装置、23…水冷除湿ダクト、24…冷却散水部、24a…冷却散水電磁弁、26…循環ファン、29…ヒータ、33…排水電磁弁、38…洗濯物、40…湿度センサ、41,42…温度センサ
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing / drying machine.
[0002]
[Prior art]
In the washing operation, in the washing operation, after supplying tap water (washing water), the washing blade is rotated in the forward and reverse directions to apply mechanical force to the laundry clothes, and then the tap water (rinsing water) is used. A washing operation in which mechanical force is applied to the washing garment in the same manner, and then a dehydration operation is carried out in which the rinsing water contained in the washing garment is centrifugally dehydrated by rotating the washing and dehydrating tub. In addition, a drying operation is performed in which warm air is supplied to the washing and dewatering tub to dry the laundry. As a washing and drying machine that executes such a series of operations, there are JP-A-11-347281, JP-A-11-347282, JP-A-11-347296, and the like.
[0003]
However, a washing / drying machine equipped with a stirring blade is likely to have wrinkles such as clothes in the drying operation.
[0004]
[Problems to be solved by the invention]
The objective of this invention is providing the washing-drying machine which can reduce wrinkles, such as clothing.
[0005]
[Means for Solving the Problems]
  In order to solve the above-described problems, the present invention provides a frame, an outer tub suspended and supported by the frame, a washing and dewatering tub that is rotatably installed in the outer tub,A fan that sucks air in the outer tub from the lower part of the outer tub and returns it to the outer tub again through the circulation passage, a heater provided in the circulation passage, and washing waterWater supply means for supplying water;In addition to the water supply means, a water supply means for supplying water into the circulation passage, a drainage electromagnetic valve, and opening the drainage electromagnetic valveDrainage means for draining water supplied to the outer tub, and control means for controlling the water supply means and the drainage meansWhenWashing and drying machine that has washing operation, drying operation, and air blowing operationIn the above, after the fan is operated, the air flowing through the circulation passage is heated by the heater to dry the laundry in the washing and dewatering tub, and then the heater generates heat in the outer tub. In a state where the drainage electromagnetic valve is closed and the water supply means for supplying water into the circulation passage is used to supply water into the outer tub and to collect water in the outer tub below the bottom of the washing and dewatering tub so,The air blowing operation is performed.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
  The present inventionThe following examples relating toA frame, an outer tub suspended and supported by the frame, a washing and dehydrating tub rotatably installed in the outer tub, a water supply means for supplying water to the outer tub, and water supplied to the outer tub A washing / drying machine having a drainage means for draining water, a control means for controlling the water supply means and the drainage means, and performing a washing operation, a drying operation, and an air blowing operation, and is supplied to the outer tub by the water supply means. Supply water and perform the blowing operationYeah.According to this configuration, it is possible to reduce the wrinkles of clothes that are caused by the drying operation.
[0007]
  The present inventionThe following examples relating toA frame, an outer tub suspended and supported by the frame, a washing and dehydrating tub rotatably installed in the outer tub, a water supply means for supplying water to the outer tub, and water supplied to the outer tub A washing / drying machine having a drainage means for draining water, a control means for controlling the water supply means and the drainage means, and performing a washing operation, a drying operation, and an air blowing operation, and is supplied to the outer tub by the water supply means. Supply the water and perform the air blowing operation with the water stored in the outer tub, and drain the water in the outer tub with the drainage means.TheAccording to this configuration, it is possible to reduce clothes from the drying operation due to the steaming effect and to cool the outer tub. The present inventionThe following examples relating toA frame, an outer tub suspended and supported by the frame, a washing and dehydrating tub rotatably installed in the outer tub, and a circulation passage for sucking air in the outer tub from the lower portion of the outer tub A fan that returns to the outer tub again through the heater, a heater provided in the passage, a water supply means for supplying water into the passage, and a drainage means for draining the water supplied to the outer tub, A washing / drying machine having a control means for controlling the water supply means and the drainage means, and performing a washing operation, a drying operation, and an air blowing operation, wherein water is supplied to the outer tub by the water supply means in the air blowing operation; Multiple cycles of storing water in the tank and draining with the drainage meansYeah.According to this configuration, it is possible to reduce the cocoon of clothing that has been in a dry operation due to the steaming effect, and it is possible to efficiently cool the outer tub.
[0008]
  The present inventionThe following examples relating toThe air blowing operation is performed in a state where water is stored in the outer tub below the washing / dehydrating tub bottom by the water supply means.U. According to this configurationDryDry clothes can be steamed without immersing them in water.
[0009]
  The present inventionThe following examples relating toThe upper part of the washing and dewatering tub has a clothing inlet and a lid that covers the clothing inlet, and the control means supplies water to the outer tub by the water supply means to store water and opens the lid. The water in the outer tub is drained by the drainage means.TheAccording to this configuration, ClothingThe clothes can be steamed to some extent until they are taken out.
[0010]
  The present inventionThe following examples relating toIn the upper part of the washing and dewatering tub, there is a clothing inlet and a lid covering the clothing inlet, and the control means supplies water to the outer tub by the water supply means to store water and opens the lid or The water in the outer tub is drained by the drainage means after a predetermined time has elapsed from the end of operation.TheAccording to this configuration, ClothingThe clothes can be steamed to some extent until the food is taken out, and the moisture of the clothes can be reduced.
[0011]
  The present inventionIn the following examples relating toThe water supply meansAsSelf-priming pumpWith. According to this configuration,sectionWater is possible.
[0012]
【Example】
FIG. 1 is a schematic view showing a washing / drying machine according to an embodiment of the present invention in a longitudinal section.
Reference numeral 1 denotes a frame constituting the outer frame. Reference numeral 2 denotes a washing and dewatering tub, which has a water passage hole 2a on its peripheral wall, a fluid balancer 3 on its upper edge, and a rotating body 4 that is rotatably installed inside the bottom. The rotating body 4 has a large diameter (preferably 90% or more of the diameter of the washing and dewatering tub 2) and is curved so that the peripheral edge is raised, and a water passage hole 4a is provided in a lower region. Reference numeral 5 denotes an outer tub containing the washing and dewatering tub 2, and a driving device 6 is attached to the outside of the bottom portion by a steel plate mounting base 7, and hung from the four corners of the upper end portion of the outer frame 1 by an anti-vibration support device 8. Support below.
[0013]
The drive device 6 includes a drive motor, an electric operation clutch mechanism, and a planetary gear speed reduction mechanism, and rotates the rotating body 4 (stirring mode) while the washing / dehydrating tub 2 is stationary, and rotates with the washing / dehydrating tub 2. The body 4 is rotated in the opposite direction (washing mode), and the washing / dehydrating tub 2 and the rotating body 4 are integrally rotated in the same direction (dehydration / drying mode).
[0014]
The top cover 9 formed with the clothing input port 9a is fitted into the opening edge so as to cover the upper opening of the frame 1, and is attached to the frame 1 together with the front panel 10 and the back panel 11 with mounting screws.
[0015]
The front panel box 12 formed between the top cover 9 and the front panel 10 includes a power switch 13, an operation panel 14 having an input switch group and a display element group, and a water level signal corresponding to the water level in the outer tub 5. A water level sensor 15 for generating water and a control unit 16 are incorporated. These constitute a control device.
[0016]
A back panel box 17 formed between the top cover 9 and the back panel 11 incorporates a washing water supply means and a high-concentration detergent liquid generation means so as to be installed side by side.
[0017]
The washing water supply means is constituted by a main water supply electromagnetic valve 20 having an inlet side connected to a water supply connection port 18 and an outlet side connected to a water injection port 19.
[0018]
The high-concentration detergent solution generating / supplying means supplies a small amount of detergent-dissolved water from the auxiliary water supply electromagnetic valve 22 to the detergent-dissolving container 21, and stirs the powdered detergent contained in the detergent-dissolving container 21 while stirring the detergent Dissolve in dissolved water to produce a high concentration detergent solution. The detergent dissolution container 21 has an overflow portion (not shown) connected to the water supply port 19, and the generated high-concentration detergent solution is diluted with further water supply (diluted water supply) to increase the amount of overflow from the overflow portion. Supply to the water inlet 19. In order to dilute to a detergent concentration that is preferable for soaking in laundry when setting up a small amount of detergent-dissolving water for producing a high-concentration detergent solution and not overflowing from the overflowing portion of the detergent-dissolving container 21 The main water supply solenoid valve 20 is also opened to supply additional dilution water to the water inlet 19.
[0019]
When a finishing agent feeder is attached to the detergent dissolution container 21, an auxiliary water supply electromagnetic valve 22a for pouring out the finishing agent is provided.
[0020]
As shown in FIG. 1, the hot air supply means heats the air sucked from the lower part 5 a of the outer tub 5 through the duct 27 with the heater 29 and blows it out from the outlet 30. The hot air drying means is formed so as to extend upward in a vertical state along the outer wall surface on the rear side of the outer tub 5 from the suction port 5a formed on the side wall near the bottom of the outer tub 5, and from the suction port 5a. A water-cooled dehumidifying duct 23 for damming the infiltrated washing water, a cooling sprinkler 24 that is located at the upper part of the water-cooled dehumidifying duct 23 and supplies water to the outer tub 5 from the duct, and a washing operation The lower air duct 25 and the space below the outer tub 5 are folded back at a position higher than the water level of the outer tub 5 and vertically extend along the outer wall surface of the outer tub 5 toward the lower side of the outer tub 5. And a circulation fan 26 that sucks air from the descending air duct 25 and generates circulation air, and extends vertically from the discharge port of the circulation fan 26 along the outer wall surface of the outer tub 5. The ascending air duct 27 is installed on the ascending air duct 27 and the outer tank upper cover 28. A heater (PTC heater) 29 that heats the circulating air fed from 27 and a blowout port 30 that blows the circulating air heated by the heater 29 into the washing and dewatering tub 2 are provided.
[0021]
A humidity sensor 40 and a first temperature sensor 41, which are humidity detecting means, are installed in the descending air duct 25, and a second temperature sensor 42 is installed in the air path downstream of the heater 29.
[0022]
Further, a lint collecting filter (not shown) is installed at the folded portion from the upper part of the water-cooled dehumidifying duct 23 to the descending air duct 25.
[0023]
The water-cooled dehumidifying duct 23, the descending air duct 25 and the ascending air duct 27 are mounted side by side in the circumferential direction of the outer tub 5.
[0024]
The hot air drying means drains the washing water in the outer tub 5 after washing, operates the circulation fan 26 while rotating the washing and dewatering tub 2 at high speed and dehydrating, and then rotating at a low speed. 5 and the wet air in the washing / dehydrating tub 2 is sucked out from the suction port 5a and is cooled by the cooling water supplied from the cooling water spray 24 to the water-cooled dehumidifying duct 23 in the process of raising the water-cooled dehumidifying duct 23. To do. Thereafter, the cooled and dehumidified air descends the descending air duct 25 and sucks into the circulation fan 26, and is sent from the circulation fan 26 through the ascending duct duct 27 and the heater 29 to the outlet 30 and heated by the heater 29 to be washed. It blows in the direction opposite to the rotation direction of the washing / dehydrating tub 2 toward the vicinity of the inner wall surface in the cum / dehydrating tub 2. The circulating air blown into the washing / dehydrating tub 2 in this way touches the laundry in the washing / dehydrating tub 2 and dries the laundry.
[0025]
The clothes insertion opening 9a formed on the upper cover 9 is covered with a lid 31 so as to be opened and closed, and the opening 28a formed in the outer tub upper cover 28 is covered with an inner lid 32 so as to be opened and closed.
[0026]
A drain port 5b formed at the bottom of the outer tub 5 is connected to a drain hose 34 via a drain electromagnetic valve 33 which is a drain means for draining water in the outer tub 5. The air trap 5 c is connected to the water level sensor 15 through the air tube 35. A base 37 made of synthetic resin with legs 36 attached to the four corners is attached to the lower edge of the frame 1.
Reference numeral 38 denotes a laundry put into the washing and dewatering tub 2.
[0027]
FIG. 2 is a longitudinal sectional view showing a specific configuration of the above-described washing and drying machine. A part of the description overlapping that of FIG. 1 is omitted.
The drive device 6 includes a drive motor 61, an electrically operated clutch mechanism 62, a planetary gear speed reduction mechanism 63, a center output shaft 64, and an outer output shaft 65. The drive device 6 is integrally assembled on the lower surface of the steel plate mounting base 7, and this mounting base. 7 is attached to the bottom bottom surface of the outer tub 5 by screwing.
[0028]
The drive motor 61 is a multistage or continuously variable speed reversible electric motor. In this embodiment, the rotational speed at which the rotating body 4 is rotated while the washing / dehydrating tub 2 is stationary at the time of detection, and the rotational speed at which the washing / dehydrating tank 2 and the rotating body 4 are rotated integrally at the time of wet water supply. And a rotation speed at which the washing / dehydration tub 2 and / or the rotating body 4 repeat normal rotation and reverse rotation when the high-concentration detergent solution is applied to the laundry and submerged, and the sun of the planetary gear reduction mechanism during washing Rotating speed for rotating the gear, rotating speed for rotating the washing / dehydrating tub 2 and the rotating body 4 integrally at 950 rpm at the time of dehydration, and integrally rotating the washing / dehydrating tub 2 and the rotating body 4 at 700 rpm at the time of hot air drying The rotation speed was set to rotate at 100 rpm and 35 rpm and to rotate the rotating body 4 independently.
[0029]
The planetary gear speed reduction mechanism 63 is a mechanism in which a carrier supporting the planetary gear is coupled to the central output shaft 64, an internal gear is coupled to the outer output shaft 65, and a sun gear is directly coupled to the drive motor 61.
[0030]
The electric operation clutch mechanism 62 selectively sets the stirring mode, the washing mode, and the dehydration / drying mode by operating the operation lever 62b by the electric operation device 62a. In the agitation mode, the rotational force of the drive motor 61 is output to the planetary gear reduction mechanism 63 and the center output while the stationary force is applied to the washing / dehydrating tub 2 by engaging the internal gear of the planetary gear reduction mechanism 63 with the stationary member. The rotation amount is transmitted to the rotating body 4 via the shaft 64 to rotate the rotating body 4 to execute the cloth amount detection and the cloth quality detection based on the load acting on the rotating body 4. In the washing mode, the rotational force of the drive motor 61 is applied to both the central output shaft 64 and the outer output shaft 65 by rotating the sun gear by the drive motor 61 with the internal gear of the planetary gear speed reduction mechanism 63 being free to rotate. Transmitting in the opposite direction, the washing and dewatering tub 2 and the rotating body 4 are rotated in the opposite direction repeatedly forward and backward to execute washing. In the dehydration / drying mode, the internal gear of the planetary gear reduction mechanism 62 is connected to the drive motor 61, and the sun gear and the internal gear are integrally rotated by the drive motor 61, and the central output shaft 64 and the outer output shaft are driven. Rotate 65 in the same direction to rotate the washing / dehydration tub 2 and the rotating body 4 in the same direction at a low speed to execute wet water supply, rotate at a high speed to execute centrifugal dehydration, rotate at various speeds, and warm air It is the structure which performs drying.
[0031]
FIG. 3 is a block diagram showing an electrical configuration of the washing / drying machine.
[0032]
A control unit 16 which is a control means for receiving power via the power switch 13 is composed mainly of a microcomputer 16a, and includes a power supply circuit 16b, a driving device 6, a main water supply electromagnetic valve 20, an auxiliary water supply electromagnetic valve 22, and a detergent stirring motor. 39, a drain electromagnetic valve 33, a circulation fan 26, a heater 29, and a drive circuit 16c having a semiconductor alternating current switching element (FLS) group for controlling power supply to the cooling water spray electromagnetic valve 24a.
[0033]
The drive motor 61 of the drive device 6 has a stator winding 61a and a rotation sensor 61b, and the electric operation clutch mechanism 62 has an electric operation machine 62a and a position sensor 62c for detecting an operation position.
[0034]
The drive circuit 16c includes two semiconductor AC switching elements (FLS) 16c1 and 16c2 for forward / reverse rotation control with respect to power supply control to the stator winding 61a of the drive motor 61 in the drive device 6. FLS16c1 is a semiconductor switching element for forward rotation power supply control, and FLS16c2 is a semiconductor AC switching element for reverse rotation power supply control. In this embodiment, the rotational speed control of the drive motor 61 is configured by performing phase control of the power supply to the stator winding 61a by FLS 16c1 and 16c2, but an inverter-driven brushless motor is used. The configuration can be configured to be performed by PWM control or PAM control. Further, an FLS 16c3 for controlling power feeding to the electric operating machine 62a of the electric operating clutch mechanism 62 in the driving device 6 is provided.
[0035]
In addition, the drive circuit 16c includes FLS 16c to 416c10 for controlling power supply to the main water supply electromagnetic valve 20, the water supply electromagnetic valve 22, the detergent stirring motor 39, the drainage electromagnetic valve 33, the circulation fan 26, the heater 29, and the cooling water spray electromagnetic valve 24a. Prepare. The drive circuit 16c controls the conduction state of the FLS 16c1 to FLS 16c10 in accordance with an instruction from the microcomputer 16a and controls power feeding to the subordinate load.
[0036]
The microcomputer 16a further includes a rotation sensor 61b of the drive motor 61, a position sensor 62c of the electric operation clutch mechanism 62, a water level sensor 15 for detecting the washing water level in the outer tub 5, a humidity sensor 40, first and second temperatures. By connecting to the sensors 41 and 42, the unbalance detection sensor 43 and the operation panel 14 and executing a control processing program incorporated in advance, the input switch group 14a, the water level sensor 15, the rotation sensor 61b and the position sensor of the operation panel 14 are executed. 62c, humidity sensor 39, first and second temperature sensors 41, 42, and unbalance detection sensor 43 are taken in and controlled by driving circuit 16c to detect, generate high-concentration detergent liquid, wet laundry, high Concentrated detergent solution generation / supply (soaking), washing, rinsing, dehydration and hot air drying are executed, and the progress of the operation is displayed by controlling the display element group 14b of the operation panel 14. Here, the unbalance detection sensor 43 determines whether the washing / dehydrating tub 2 (outer tub 5) is predetermined by an ambassement of the distribution of the laundry 38 in the washing / dehydrating tub 2 when the washing / dehydrating tub 2 is rotated. It is a sensor that detects large fluctuations above the value.
[0037]
The input switch group 14a of the operation panel 14 includes a course setting switch for setting the type of operation (washing / drying) to be executed and a mode setting switch for setting the execution method of washing and drying according to the laundry (dry matter). . The course setting switch is equipped with a setting switch for selectively setting the washing / drying course, washing course, and drying course, and the mode setting switch includes the standard mode, shirt mode, blanket mode, fresh drying mode, dry mode, and finish. A switch is provided to selectively set the mode and accessory drying mode.
[0038]
Here, the washing / drying course is a course that consistently executes a washing operation, a drying operation, and a blowing operation, and the washing course is a course that executes a washing operation from washing to centrifugal dehydration, and the drying course is This is a course for executing the drying operation of the laundry being washed and dehydrated and the subsequent air blowing operation.
[0039]
Next, the operation will be described.
[0040]
FIG. 4 is a flowchart of each operation executed by the microcomputer 16a in the control unit 16 as control means.
[0041]
The microcomputer 16a executes the following control process when the power switch 13 is turned on.
Step 401
The laundry clothes 38 is put into the washing / dehydrating tub 2, and the input switch group 14a of the operation panel 14 is operated to perform initial setting. When the washing / drying start button switch is pressed, automatic control processing of each operation is started. .
The initial setting is set by selecting the course and mode. Here, the operation control when the washing / drying course is set is illustrated.
Step 402
A process for detecting the amount of cloth in the laundry 38 is performed. This cloth amount detection is performed by controlling the electric operation clutch mechanism 62 of the drive device 6 to the stirring mode in the dry cloth state before water supply, energizing the drive motor 61 for a short time to rotationally drive the rotating body 4, and This is detected based on the deceleration characteristics in inertial rotation. Based on the detection result (cloth amount of the laundry), the amount of washing water and the amount of detergent for generating washing water having a preferable detergent concentration are calculated and determined, and this amount of detergent is displayed by the display element group 14b. An amount of powder synthetic detergent is put into the detergent dissolution container 21.
Step 403
The electric operation clutch mechanism 62 of the drive device 6 is controlled to the dewatering / drying mode, the drive motor 61 is operated at a low speed, and the main water supply electromagnetic valve 20 is opened while the washing / dehydration tub 2 and the rotating body 4 are rotated at a low speed to tap water Is directly supplied to the water inlet 19 to spray the tap water on the laundry 38 in the washing and dewatering tub 2. The laundry 38 absorbs the dispersed tap water and wets it, thereby reducing the bulk. The amount of tap water sprayed at this time is controlled in accordance with the amount of laundry 38 detected by the detection operation, and is decreased when the amount of laundry 38 is small, and is increased as it increases. The amount of tap water sprayed on the laundry 38 is, for example, about 4 L (liter) when the amount of the laundry 38 is less than 4 kg, and 10 L when the amount is 4 kg to 8 kg. This amount of water supply is controlled by the valve opening time of the main water supply electromagnetic valve 20.
Then, if necessary, the tap water is left in a wet state for a predetermined time so as to sufficiently penetrate the laundry 38. This stationary time is controlled according to the amount of laundry 38 and the amount of tap water sprayed. During the stationary time to allow the sprayed tap water to sufficiently penetrate the laundry 38, the washing / dehydration tub 2 may be stopped, but for quick penetration, the washing / dehydration tub 2 may be lowered. Rotate at speed.
Step 404
A small amount of tap water (detergent-dissolving water) that does not overflow into the detergent-dissolving container 21 by opening the auxiliary water supply solenoid valve 22, and the powder in the detergent-dissolving container 21 that was added to generate washing water with the desired detergent concentration A high-concentration detergent solution is produced by dissolving a synthetic detergent with a small amount of detergent-dissolving water while stirring with a rotating body. The amount of the detergent-dissolved water is set to a suitable amount of water that does not overflow from the overflow portion of the detergent-dissolving container 21 and that dissolves the powder-synthetic detergent well while stirring the powder-synthetic detergent with a rotating body.
Step 405
The electric operation clutch mechanism 62 of the driving device 6 is controlled to the dehydration / drying mode, and the auxiliary water supply electromagnetic valve 22 is opened while the driving motor 61 is operated at a low speed to rotate the washing / dehydrating tub 2 and the rotating body 4 at a low speed. Diluted water is supplied to the detergent dissolution container 21 to dilute the high-concentration detergent liquid and cause the water to overflow from the overflow part, and then send it to the water inlet 19 and open the main water supply solenoid valve 20 to inject water into the water inlet 19 to inject the high-concentration detergent liquid. Is diluted into a preferred high-concentration detergent solution and descends on the laundry 38 in the washing and dewatering tub 2 to be immersed in the laundry 38.
[0042]
The high-concentration detergent solution that has been submerged in the laundry 38 increases its cleaning power by applying its high chemical cleaning power to the laundry 38, thus reducing the mechanical force that acts on the laundry 38 in the washing operation. It is possible to reduce fabric damage and fabric entanglement.
[0043]
Synthetic powder detergents include a surfactant that removes dirt, an alkali agent that assists the active agent, a builder such as a zeolite, an enzyme, an anti-redeposition agent, and an additive such as a fluorescent brightening agent. Zeolite functions to suppress the decrease in the amount of effective surfactant in the wash water by removing (softening) the metal ions contained in tap water and suppressing the formation of metal soap. In the washing water produced by dissolving the powder synthetic detergent in a large amount of tap water, the amount of zeolite is insufficient and the effective surfactant is greatly reduced.
[0044]
However, high-concentration detergent solution (for example, detergent concentration 10 times the detergent concentration of washing water) produced by dissolving synthetic powder detergent with a small amount of tap water (detergent-dissolving water) has a small amount of metal ions. Therefore, the zeolite can function sufficiently and the decrease in the effective surfactant can be suppressed to a very small amount (about 2%). Therefore, when such a high concentration detergent solution is applied to the laundry and submerged, the detergent solution penetrates the laundry (dirty clothing) at a high speed (about four times faster than the washing water) and quickly becomes dirty. The surfactant promotes emulsification and dispersion of dirt, the alkali material promotes swelling and saponification of oil dirt, and the enzyme exerts detergency to decompose fat and protein dirt.
Step 406
This is a time for accelerating the penetration of the high-concentration detergent liquid that has fallen on the laundry 38 into the laundry 38 and can be omitted.
Step 407
The main water supply electromagnetic valve 20 and the auxiliary water supply electromagnetic valve 22 are opened to start supplying tap water (wash water). The washing water is supplied up to the amount of water determined in step 402, but is interrupted in order to detect the cloth amount (packing value) and the cloth quality of the laundry 38 during the water supply. This interrupted water level is a water level suitable for detecting the amount and quality of the cloth set in advance in the microcomputer 16a.
Step 408
Detecting the amount of poultice and the quality of the cloth, correcting the wash water supply, washing, and determining control constants for dehydration and drying operations. In this cloth quality detection, water supply is interrupted at a predetermined low water level, the electric operation clutch mechanism 62 of the drive device 6 is controlled to the detection mode, the drive motor 61 is energized for a short time, and the rotating body 4 is driven to rotate. The first deceleration characteristic (packing cloth amount) in inertial rotation at the time of extinction is detected, then the water supply is resumed, the washing water is replenished to a predetermined high water level, the water supply is interrupted, and the drive motor of the drive device 6 The rotary body 4 is rotationally driven by energizing 61 for a short time, and the second deceleration characteristic in inertial rotation at the time of deactivation is detected, and washing is performed based on the difference between the first attenuation characteristic and the second attenuation characteristic. The cloth quality of the object 38 is detected. This cloth quality detection control is omitted when it becomes unnecessary by the initial setting. Then, depending on the cloth quality, the time and water flow (strength of mechanical stirring) in the washing and rinsing operations and the control constant in the drying operation are determined.
Step 409
Tap water is supplied up to the amount of water determined in step 402. With this water supply, the washing water is further diluted with a high-concentration detergent solution to obtain a detergent concentration preferable for washing. As a result, the laundry 38 is immersed in the washing water having a predetermined detergent concentration in the washing / dehydrating tub 2, and the washing / dehydrating tub 2 and the rotating body 4 are rotated to provide mechanical washing power to the laundry 38. It is in a state suitable for acting.
Step 410
The drive device 6 is controlled to perform the washing operation for the washing water flow and washing time set in step 408. In this washing operation, the driving device 6 controls the electric operation clutch mechanism 62 to the washing mode, and repeats the forward / reverse operation of the driving motor 61 to repeatedly rotate the washing / dehydrating tub 2 and the rotating body 4 in opposite directions. Thus, a mechanical cleaning force is applied to the laundry 38. The machine (stirring) force acting on the laundry 38 adjusts the ON / OFF time limit of the forward / reverse rotation of the washing / dehydrating tub 2 and the rotating body 4, adjusts the rotation speed, and adjusts the washing (stirring) time. It can be controlled by doing.
[0045]
Since this washing dryer uses the high chemical cleaning power of the high-concentration detergent solution, the laundry 38 can be cleaned more easily than the conventional cleaning method even with a small mechanical (stirring) power. As a result, the damage and entanglement of the laundry 38 can be reduced.
Step 411
Open the drain solenoid valve 33 to drain the washing water out of the machine.
Step 412
The main water supply electromagnetic valve 20 and the auxiliary water supply electromagnetic valve 22 are opened to supply rinsing water (tap water) to a set amount. If necessary, the auxiliary water supply electromagnetic valve 22a is opened to mix the finishing agent.
Step 413
The drive device 6 is controlled to execute the rinsing operation.
Step 414
The drain electromagnetic valve 33 is opened to drain the rinse water out of the machine.
Step 415
With the drain electromagnetic valve 33 open, the electric operation clutch mechanism 62 of the driving device 6 is controlled to the dehydration / drying mode, and the washing motor / dehydration tub 2 and the rotating body 4 are integrated by operating the driving motor 61 at high speed. The water of the laundry 38 is centrifugally dehydrated by rotating at a high speed of 950 rpm. In the state where the centrifugal dehydration is completed, the laundry 38 is pressed against the side wall of the washing and dewatering tank 2 and is attached to the side wall surface.
Step 416
The electric operation clutch mechanism 62 of the driving device 6 is controlled to the dehydrating / drying mode, the driving motor 61 is operated, the washing / dehydrating tub 2 and the rotating body 4 are rotated, and the circulation fan 26 is operated to rotate the inside of the outer tub 5 Air is sucked out from the suction port 5a, cooled and dehumidified by the cooling water supplied from the cooling sprinkler 24 into the water-cooled dehumidifying duct 23 when passing through the water-cooled dehumidifying duct 23, and sucked into the circulation fan 26 through the descending air duct 25 The circulating fan 26 is sent to the blowout port 30 through the ascending air duct 27 and the heater 29 and heated by the heater 29 toward the vicinity of the inner wall surface in the washing / dehydrating tub 2 in the rotation direction of the washing / dehydrating tub 2. On the other hand, circulating air blown in the opposite direction is generated, and the laundry in the washing and dewatering tub 2 is dried.
[0046]
In this drying operation, basically, according to a predetermined time schedule set in advance, as described above, while the washing and dewatering tub 2 and the rotating body 4 are rotated, the circulation fan 26 is operated to operate the washing and dewatering tub 2 It is executed by circulating the air in the (outer tub 5) through the ducts 23, 25, 27, sprinkling water from the cooling sprinkler 24, water-cooling and dehumidifying the circulating air, and heating the water-cooled and dehumidified circulating air by the heater 29. Depending on the set mode, the amount of laundry 38, the humidity of the circulating air (dryness of the laundry 38), the temperature and the imbalance detection result, the rotation control and circulation fan of the washing / dehydrating tub 2 and the rotating body 4 The operation control of 26, the heat generation control of the heater 29, and the watering control of the cooling watering unit 24 are executed.
[0047]
The rotation of the washing / dehydrating tub 2 in this drying operation is set to 700 rpm as a semi-high speed rotation speed, 100 rpm as a low speed rotation speed, and 35 rpm as an ultra-low speed rotation speed. The specific values of these rotational speeds are not limited to these values, and can be changed as necessary. For example, it is preferable to change according to the amount of cloth and the quality of cloth. The first drying operation in which the washing and dewatering tub 2 is rotated by the quasi-high speed rotation is suitable for promoting centrifugal dehydration and heat drying of the laundry 38 in the initial heating stage of the drying operation. In this initial heating stage, water-cooled dehumidification of the circulating air is not performed. In the second drying operation in which the washing / dehydrating tub 2 is rotated at a lower rotational speed than the first drying operation, the circulating air is uniformly blown into the washing / dehydrating tub 2 in the subsequent water-cooled dehumidifying and drying stage. Suitable for touching the object 38. The rotation of the washing and dewatering tub 2 at the ultra-low speed is suitable for drying by blowing the circulating air while slowly rotating the dry matter 38 in the shirt mode, the blanket mode, the dry mode, and the accessory drying mode. .
[0048]
The swing of the washing / dehydrating tub 2 (outer tub 5) due to the imbalance of the laundry 38 increases as the rotational speed of the washing / dehydrating tub 2 increases, so when the shake is detected at the quasi-high rotational speed, the rotational speed is low. When the shake is detected in the low speed rotation, the speed control is performed so that the speed is changed to the ultra low speed rotation speed, so that the hot air drying is continued while reducing the inconvenience (vibration and noise) due to the shake. When the rotational speed is decreased by detecting the shake, the drying time is extended to the required dryness.
[0049]
If clogging occurs in the hot air circulation path (particularly the lint collecting filter), the air volume of the circulating air is reduced and the drying efficiency is lowered. This clogging detection is performed by monitoring the temperature difference between the circulating air before and after the heater 29 (detected temperatures of the first and second temperature sensors 41 and 42) or by monitoring the current consumption of the heater 29. To do. The temperature difference of the circulating air increases as the yarn dust collecting filter becomes clogged and the air volume of the circulating air decreases, and the current consumption of the heater 29 uses a PTC heater. Detecting the degree of clogging of the lint collection filter by monitoring the temperature difference of the circulating air or the current consumption of the heater 29 because the air volume of the circulating air decreases due to clogging. Can do.
[0050]
In addition, a transient increase in the temperature of the air in the washing and dewatering tank 2 may damage the laundry 38 and the components of the washing dryer, particularly the resin molded parts, in an overheated state. In order to prevent such overheating, the amount of power supplied to the heater 29 is reduced when the temperature of the circulating air blown into the washing and dewatering tub 2 from the outlet 30 (detected temperature of the second temperature sensor 41) reaches 106 ° C. To control.
[0051]
Further, during the hot air drying, the hot air keeps hitting the laundry 38, and the local (surface portion) drying of the laundry 38 is promoted to prevent the temperature of the portion from rising locally. In order to do so, it is desirable to replace (invert) or loosen the laundry 38 according to the degree of progress of drying so that the warm air uniformly touches the laundry 38. It is desirable that the laundry 38 is replaced (reversed) or stirred for unraveling with a stirring force corresponding to the amount of the laundry 38 and the progress of drying (dryness or operating time). The strength of the stirring force can be changed depending on the rotation speed and rotation time of the rotating body 4. The temperature sensor 41, 42, humidity sensor 40, etc. detect a dryness of about 90%, or when the predetermined time (300 minutes) has elapsed from the start of the drying operation, the PTC heater 29 is turned off because the clothing has dried. .
Step 417
In step 417, the air blowing operation is executed. In this air blowing operation, the heat generation of the heater 29 is stopped (turned off), and the drive device 6 is controlled to repeat the replacement (reversal) and unraveling of the laundry 38 for a predetermined time (here, 20 minutes is set). Further, in the air blowing operation, water is supplied to the outer tub for 7 minutes at 0.3 L / min from the cooling sprinkler 24 which is a water supply means 3 minutes after the start of the air blowing operation. By doing so, it is possible to reduce wrinkles on clothes during the drying operation. When water is supplied from the cooling sprinkler 24, it is desirable to close the drain electromagnetic valve 33 and store a predetermined amount of water in the outer tub 5, and then open the drain electromagnetic valve 33 to drain water.
By doing in this way, cooling of an outer tank can also be performed efficiently.
When 13 minutes have passed since the start of the air blowing operation, the drain electromagnetic valve 33 is closed again to store the water reservoir in the outer tub 5, and after 20 minutes from the start of the air blowing operation, the drain electromagnetic valve 33 is opened and drained. Thus, the outer tub can be efficiently cooled by performing a cycle for storing and draining water in the outer tub a plurality of times.
When the water is finally supplied from the cooling sprinkler 24 to the outer tub 5 in the air blowing operation, the drain electromagnetic valve 33 is kept closed. By doing so, the clothes in the washing and dewatering tub 2 can be moistened.
It is desirable to supply water into the outer tub below the bottom of the washing and dewatering tub 2 by the cooling sprinkler 24. As a result, it is possible to steam clothes that have been dried in a dry operation without being immersed in water.
Thereafter, the circulation fan 26 and the cooling water spray solenoid valve 24a are stopped (turned off), and the air blowing operation is finished.
In step 418, when the air blowing operation is finished, an operation of stirring every 5 minutes is performed. When 120 minutes have elapsed from the end of the air blowing operation at step 419, or when it is detected by a switch (not shown) that the lid 31 has been opened at step 420, the drain electromagnetic valve 33 is opened and the driving device 6 is stopped (off). To finish driving.
By not allowing drainage until the lid 31 is opened in this way, the clothes can be steamed to some extent until the clothes are taken out, and the water in the outer tub is drained by the drainage means after a lapse of a predetermined time after the blowing operation is finished. Doing so can reduce the wetness of clothing. In addition to the cooling sprinkler 24, the main water supply electromagnetic valve 20 or a self-priming pump (not shown) may be used as water supply means for steaming clothes. If a self-priming pump is used, further water saving is possible.
[0052]
【The invention's effect】
  ADVANTAGE OF THE INVENTION According to this invention, the washing-drying machine which can reduce wrinkles, such as clothing, can be provided.At this time, by supplying water into the outer tub below the bottom of the washing and dewatering tub by the water supply means for supplying water into the circulation passage, the clothes dried in the drying operation can be steamed without being immersed in water.
[Brief description of the drawings]
FIG. 1 is a schematic diagram showing a washing / drying machine as an embodiment of the present invention in a longitudinal section.
2 is a longitudinal sectional view showing a specific configuration of the washing / drying machine shown in FIG. 1. FIG.
3 is a block diagram showing an electrical configuration of the washing / drying machine shown in FIGS. 1 and 2. FIG.
4 is a flowchart of a washing operation, a drying operation, and an air blowing operation executed by a microcomputer in the control unit shown in FIG.
[Explanation of symbols]
2 ... Washing and dehydration tank, 6 ... Drive device, 23 ... Water-cooled dehumidification duct, 24 ... Cooling sprinkler, 24a ... Cooling sprinkling solenoid valve, 26 ... Circulating fan, 29 ... Heater, 33 ... Drainage solenoid valve, 38 ... Laundry , 40 ... Humidity sensor, 41, 42 ... Temperature sensor

Claims (4)

枠体と、前記枠体に吊下支持された外槽と、前記外槽内に回転自在に設置された洗濯兼脱水槽と、前記外槽下部から前記外槽内の空気を吸い込んで循環通路を介して再び前記外槽内に戻すファンと、前記循環通路内に設けられたヒ−タと、洗濯水を給水する給水手段と、前記給水手段のほかに前記循環通路内に給水する給水手段と、排水電磁弁を有し前記排水電磁弁を開くことによって前記外槽に給水された水を排水する排水手段と、前記給水手段及び前記排水手段を制御する制御手段を有し、洗濯運転、乾燥運転、送風運転を行う洗濯乾燥機において
前記ファンを運転することにより前記循環通路を流れる空気を前記ヒータで加熱して前記洗濯兼脱水槽内の洗濯物を乾燥させる前記乾燥運転を行った後、前記外槽内にヒータの発熱を停止した状態、かつ前記排水電磁弁を閉じ前記循環通路内に給水する前記給水手段で前記外槽内に給水し前記洗濯兼脱水槽の底部より下方の前記外槽内に水を溜めた状態で、前記送風運転を行なうことを特徴とする洗濯乾燥機。
A frame, an outer tub suspended and supported by the frame, a washing and dehydrating tub rotatably installed in the outer tub, and a circulation passage for sucking air in the outer tub from the lower portion of the outer tub A fan that is returned to the outer tub again via a heater, a heater provided in the circulation passage, water supply means for supplying washing water, and water supply means for supplying water into the circulation passage in addition to the water supply means If has a drainage means for draining water supplied to the outer tub by opening the drainage solenoid valve has a drainage solenoid valve, and control means for controlling the water supply means and the water discharge means, the washing operation , the drying operation, in washing and drying machine for blowing air operation,
By operating the fan, the air flowing through the circulation passage is heated by the heater to dry the laundry in the washing and dewatering tub, and then the heating of the heater is stopped in the outer tub. In the state where the drainage electromagnetic valve is closed and the water supply means for supplying water into the circulation passage supplies water into the outer tub and stores water in the outer tub below the bottom of the washing and dehydrating tub, A washing and drying machine that performs the air blowing operation.
請求項1に記載の洗濯乾燥機において、前記送風運転で、循環通路内に給水する前記給水手段により前記外槽へ給水して前記外槽内に水を貯留し前記排水手段で貯留した水を排水するサイクルを複数回行うことを特徴とする洗濯乾燥機。 The washing / drying machine according to claim 1, wherein in the air blowing operation, water is supplied to the outer tub by the water supply means for supplying water into the circulation passage , water is stored in the outer tub, and water stored by the drain means is used. A washing and drying machine characterized by performing a draining cycle a plurality of times. 請求項1又は2に記載の洗濯乾燥機において、前記洗濯兼脱水槽上部には衣類投入口及び前記衣類投入口を覆う蓋を有し、前記制御手段は循環通路内に給水する前記給水手段により前記外槽へ給水して水を貯留し、前記蓋を開いた場合に前記排水手段により前記外槽内の水を排水するようにしたことを特徴とする洗濯乾燥機。 The washing / drying machine according to claim 1 or 2 , wherein the upper part of the washing and dewatering tub has a clothing inlet and a lid that covers the clothing inlet, and the control means includes the water supply means for supplying water into the circulation passage. A washer-dryer characterized in that when the water is supplied to the outer tub to store water and the lid is opened, the water in the outer tub is drained by the drainage means. 請求項1又は2に記載の洗濯乾燥機において、前記洗濯兼脱水槽上部には衣類投入口及び前記衣類投入口を覆う蓋を有し、前記制御手段は循環通路内に給水する前記給水手段により前記外槽へ給水して水を貯留し、前記蓋を開いた場合又は運転終了後所定時間経過した場合に前記排水手段により前記外槽内の水を排水するようにしたことを特徴とする洗濯乾燥機。 The washing / drying machine according to claim 1 or 2 , wherein the upper part of the washing and dewatering tub has a clothing inlet and a lid that covers the clothing inlet, and the control means includes the water supply means for supplying water into the circulation passage. Washing by supplying water to the outer tub and storing the water, and draining the water in the outer tub by the drainage means when the lid is opened or when a predetermined time has elapsed after the end of operation. Dryer.
JP2002014966A 2002-01-24 2002-01-24 Washing and drying machine Expired - Fee Related JP3823835B2 (en)

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