JP4474789B2 - Washing and drying machine - Google Patents

Description

【００４８】
各行程の時間は、洗濯行程の最初に布量検知手段３８で検知された衣類の量に最適な乾燥となるように決めており、第１の乾燥行程は衣類の量が３〜４ｋｇの場合に９６分で、槽回転の時間１５分に対して回転翼回転の時間は１分であるため、回転翼回転の時間比率は約６％である。第２の乾燥行程は５０分で、槽回転の時間４分に対して回転翼回転の時間は１分であるため、回転翼回転の時間比率は２０％であり、第３の乾燥行程は１００分で、回転翼回転の時間比率は１００％であり、行程の進行とともに回転翼回転の時間比率が高くなるようにしている。
【００４９】
発明者らの実験によれば、この種の洗濯乾燥機の場合、回転翼５を回転させながらの乾燥の方が、内槽４を回転させながらもしくは静止した状態での乾燥よりも乾燥時間を短縮できることがわかった。そのために、乾燥初期から回転翼回転が主体の乾燥とする方法が考えられるが、そうすると衣類のからみがひどくなり、しわが発生する原因となる。
【００５０】
一方、衣類の乾燥率が９０％を越えると、回転翼回転を主体としても衣類のからみやしわが進行しにくいことがわかった。そこで、３つの乾燥行程を上記のように設定することにより、布からみに起因するしわの発生を低減することができ、また、上下左右に衣類を入れ換えることができ、衣類にまんべんなく温風を当てられるので乾燥むらがなく効率よく乾燥することができる。
【００５１】
また、第１の乾燥行程の槽回転の時間比率は約９４％である。発明者らの実験によれば、第１の乾燥行程は槽回転が主体であるが、槽回転中は衣類は内槽４と一体となって回転しているだけであり、温風噴出孔１６に近い上部の衣類に温風が集中して当たり、衣類温度が高くなり、しわや傷みの原因になる。
【００５２】
そこで、本実施例では、周期的（１６分）ごとに衣類を上下左右に入れ換えるために、回転翼回転の時限として、１秒オン、２秒オフの強い回転翼の回転を１往復入れるようにしている。しかし、このような衣類を上下左右に入れ換えるためなどの回転翼５の回転時間を第１の乾燥行程で１０％以上とすると、衣類がからむことによるしわがひどくなることがわかった。
【００５３】
そこで、衣類が上下左右に入れ換えることが可能な強い回転を含む回転翼５の回転時間
比率を１０％未満、すなわち、槽回転時間比率を９０％以上とすることにより、しわの発生を抑え、乾燥むらがなく効率よく乾燥することができるようになる。
【００５４】
また、第１の乾燥行程、第２の乾燥行程とも回転翼５の回転時間は６０秒で、１秒オン、２秒オフの強い回転を１往復、０．３秒オン、２．７秒オフの弱い回転を９往復するようにしている。これは上記したように、槽回転が主体であっても周期的に衣類を上下左右に入れ換えるために強い回転を行わなくてはならず、そうすると内槽４内の衣類がアンバランスになる可能性が大きく、その状態で内槽４を回転させようとすれば、ゆれが大きくなり、外槽３が筐体１などにあたり異常音が発生する。
【００５５】
そこで、強い回転により衣類がアンバランスになっても、その後に弱い回転を行うことによって内槽４内の衣類が均一になり、以後の槽回転時に外槽３のふれ回りが大きくなって筐体１などに当たることによる異常音の発生を未然に防ぐことができる。
【００５６】
つぎに、ステップ１０４で、乾燥検知が終了したかどうかを判定し、乾燥検知していればステップ１０５へいく。
【００５７】
乾燥行程中の温度検知手段２２で検知される循環風温度は、図６に示すように変化する。すなわち、乾燥行程が始まると、乾燥用送風機１２、ヒータ１３が作動し、循環経路を温風が循環する。温風噴出孔１６から内槽４へ吹き出された温風は、回転翼５によって撹拌される湿った衣類に吹き付けられて、効率的な乾燥を行う。
【００５８】
さらに、衣類から水分を奪って多湿になった温風は、循環ダクト１１を通過するとき、冷却用送風機１７によって送られる送風によって、循環ダクト１１の壁面を介して熱交換を行う。このとき、冷やされて結露点に達した温風は、循環ダクト１１の内壁面に結露水を形成する。
【００５９】
図６に示す恒率乾燥期の期間は衣類からの蒸発水分量が一定（平衡状態）であり、冷却風による冷却効果は凝縮という状態変化に費やされ、循環ダクト１１の壁面温度および温度検知手段４０で検知される循環風温度は平衡状態を保ったままとなる。
【００６０】
さらに乾燥が進行し減率乾燥期に入って、衣類からの蒸発水分量が徐々に減少し、循環風の温度が上昇していくので、恒率乾燥期に温度検知手段２２で検知される温度ＴａよりΔＴだけ上昇すれば乾燥終了検知する。
【００６１】
そして、ステップ１０５で、乾燥用送風機１２、冷却用送風機１７を駆動する送風行程を行った後に、ステップ１０６で乾燥を終了させる。
【００６２】
つぎに、布質判定手段３９で判定した衣類の質に基づいて、乾燥の各行程の時間を補正する方法について説明する。
【００６３】
（表１）に示したように、制御手段２５は、布量検知手段３８で検知した衣類の量に基づいて、第１の乾燥行程から第３の乾燥行程の時間を決定するが、さらに、布質判定手段３９で判定した衣類の質に基づき各行程の時間を（表２）に示すように補正する。
【００６４】
【表２】

【００６５】
これは例えば、衣類の量が３〜４ｋｇである場合に、標準的な衣類の第１の乾燥行程から第３の乾燥行程の時間は、順に９６分、５０分、１００分であるが、化繊多めの場合は７２分、３８分、８０分と短めに補正し、逆に綿多めの場合は１２０分、６２分、１２０分と長めに補正する。このように補正することにより、衣類の種類が異なっても行程が切り換わるときの乾燥度合いをほぼ一定にすることができるので、布からみに起因するしわの発生を低減することができ、また乾燥むらがなく効率よく乾燥することができる。
【００６６】
なお、布質判定手段３９は、入力設定手段２６で設定された運転コースにより衣類の質を判定するようにしている。
【００６７】
このように本実施例によれば、布質判定手段３９の判定結果により、少なくとも１つ以上の行程の時間を補正するようにしたので、化繊が多めの場合は標準時間よりも短めに、綿が多めの場合は標準時間よりも長めに補正することにより、洗濯物の種類が異なっても行程が切り換わるときの乾燥度合いをほぼ一定にすることができるので、布からみに起因するしわの発生を低減することができ、また乾燥むらがなく効率よく乾燥することができる。
【００６８】
また、衣類の量に応じて各行程の時間を変えることにより、衣類の量に適した乾燥時間で乾燥を終了することができ、また乾燥むらがなく、そしてしわの発生を抑えた乾燥を実現することができる。
【００６９】
また、布質判定手段３９は、入力設定手段２６で設定された内容により洗濯物の布質を判定するようにしたものであり、布質を使用者に設定してもらうようにすることにより確実に判定でき、洗濯物の布質に応じて乾燥むらがなく効率よく乾燥することができる。
【００７０】
また、温度検知手段２２を乾燥用送風機１２の出口とヒータ１３との間に設けて循環風の温度を検知するようにし、恒率乾燥期に温度検知手段２２で検知される温度ＴａよりΔＴだけ上昇すれば乾燥終了検知するようにしているので、衣類の量や周囲温度に応じた乾燥時間で終了することができ、第３の乾燥行程の時間が長く設定してあっても、未乾燥や過乾燥の状態で終了することはなくなる。
【００７１】
なお、本実施例では、槽回転モードと回転翼回転モードの時間比率の異なる３つの乾燥行程で乾燥運転を制御するようにしたが、これは３行程に限らず、それ以上の行程に分けてきめ細やかに制御すればより一層の効果がある。
【００７２】
また、各行程の時間や、各行程における槽回転の時間、回転翼回転の時間、槽回転の回転数は、本発明における一実施例であり、これらの数値に限定されるものではない。
【００７３】
また、駆動手段として直流ブラシレスモータを使用し、インバータ制御するようにしたが、これはインダクションモータであってもよい。
【００７４】
（実施例２）
図１に示す制御手段２５は、乾燥行程における第１の乾燥行程、第２の乾燥行程および第３の乾燥行程にて、布質判定手段３９で判定した衣類の質に基づいて、（表３）に示すように、回転翼回転の強さを変えるようにしている。他の構成は上記実施例１と同じである。
【００７５】
【表３】

【００７６】
上記構成において動作を説明する。乾燥行程における第１の乾燥行程、第２の乾燥行程および第３の乾燥行程にて、（表３）に示すように、綿が多めの場合は、標準時限よりオン時間を長くして強くすることにより、上下左右に洗濯物を入れ換えることができるようになり、洗濯物にまんべんなく温風を当てられるので乾燥むらがなく効率よく乾燥することができるようになる。一方、化繊が多めの場合は、標準時限よりオン時間を短くすることにより、衣類への機械力を低減でき、乾燥の仕上がりを向上することができる。
【００７７】
このように本実施例によれば、布質判定手段３９の判定結果に基づいて回転翼回転の強さを変えるようにしたので、洗濯物の綿が多めの場合は、例えば標準時限よりもオン時間を長くすることにより、上下左右に洗濯物を入れ換えることができるようになり、洗濯物にまんべんなく温風を当てられるので乾燥むらがなく効率よく乾燥することができる。
【００７８】
なお、本実施例では、回転翼回転の強さを変える方法として、モータ９のオン時間を変えるようにしたが、これはモータ９の回転数を変えるようにしても同等の効果がある。
【００７９】
また、各行程の回転翼回転の時限は、本発明における一実施例であり、これらの数値に限定されるものではない。
【００８０】
また、駆動手段として直流ブラシレスモータを使用し、インバータ制御するようにしたが、これはインダクションモータであってもよい。
【００８１】
（実施例３）
図７に示すように、制御手段４２と、制御手段４２の一部である布量検知手段４５および布質判定手段４６はマイクロコンピュータなどで構成し、制御手段４２は、入力設定手段４３により設定された設定内容に基づいて、表示手段４４に設定内容を表示するとともに、洗濯および乾燥運転を制御する。
【００８２】
また、布量検知手段４５は、上記実施例１と同じように、位置検出手段３１ａからの信号を入力することにより、内槽４内に投入された衣類の量を検知するものであり、布質判定手段４６は布量検知手段４５の検知結果と水位検知手段２１からの信号を入力して衣類の布質を判定するようにしている。他の構成は上記実施例１と同じであり、同一符号を付して説明を省略する。
【００８３】
操作表示部は、図８に示すように、水位設定スイッチ４３ａ、洗い時間設定スイッチ４３ｂ、すすぎ回数設定スイッチ４３ｃ、脱水時間設定スイッチ４３ｄ、乾燥時間設定スイッチ４３ｅ、スタート・一時停止スイッチ４３ｆ、コース設定スイッチ４３ｇ、電源入／切スイッチ４３ｈなどの入力設定手段４３と、水位表示部４４ａ、洗い時間表示部４４ｂ、すすぎ回数表示部４４ｃ、脱水時間表示部４４ｄ、乾燥時間表示部４４ｅ、残り時間表示部４４ｆ、コース表示部４４ｇなどの表示手段４４とで構成している。ここで、運転コースについては、コース設定スイッチ４３ｇにより、洗濯から乾燥まで行うおまかせコースと、洗濯のみのデリケート、ゴシゴシ、お急ぎの３コースが選べるようにしている。
【００８４】
上記構成において図９および図１０を参照しながら、洗濯物の布質を判定するときの動作を説明する。
【００８５】
図９のステップ１２０にて、制御手段４２は、スタート・一時停止スイッチ４３ｆが操作されたと判断すると運転を開始する。ステップ１２１では、上記実施例１と同じように、布量検知手段４５が位置検出手段３１ａからの信号を入力することにより、モータ９をオフしたときのロータの惰性回転量を検知することにより、内槽４内に投入された衣類の量を検知する。
【００８６】
つぎにステップ１２２で、水位検知手段２１により検知した水位が衣類の量ごとに決められた所定の水位になるまで給水する。そしてステップ１２３で、回転制御手段３０を介して回転翼５を例えば２秒オン、１秒オフの時限で左右反転させ、この撹拌を１分間を行う。そしてステップ１２４で、布質判定手段４６は水位検知手段２１からの信号を入力して、撹拌前からの水位の低下量を測定し、ステップ１２５で、布質判定手段４６は布量検知手段４５で検知された衣類の量に応じて水位低下量の程度を判定し、水位低下量が小さければ化繊が多め、水位低下量が大きければ綿が多めと判定するようにして、ステップ１２６で次行程に進む。
【００８７】
図１０は、衣類の量ごとに決められた所定の水位に達してからの１分間の撹拌での水位
の低下の概略を示したもので、詳細には撹拌のオンオフに同期して変動している。初期水位がｈｉで、綿が多い場合ｃでは、時間ｔｍ（撹拌時間より長い時間で例えば１分５秒）での低下量が大きいｈｃとなり、化繊多めの場合ａでは、逆に低下量が小さいｈａとなり、標準衣類の場合ｂでは、ｈｂとなる。これは、撹拌により衣類が吸水するためで、化繊は吸水率が低く、綿は吸水率が高いためである。
【００８８】
以後の行程は、上記実施例１または２と同様に、洗濯、乾燥運転を行うので説明を省略する。
【００８９】
このように本実施例によれば、簡単な構成で精度よく布質を判定することが可能となり、しかも洗濯行程の当初に布質を判定することができ、洗濯物の布質に応じて乾燥むらがなく効率よく乾燥することができる。
【００９０】
【発明の効果】
以上のように本発明の請求項１に記載の発明によれば、筐体内に弾性的に吊支した外槽と、回転中心軸を鉛直方向に有し前記外槽内に回転自在に支持した内槽と、前記内槽の内底部に回転自在に設けた回転翼と、前記内槽または回転翼を駆動する駆動手段と、前記内槽内に循環風を送風する送風手段と、前記送風手段により送風される空気を加熱する加熱手段と、前記筐体内部に外部から冷却風を導入する冷却送風手段と、前記内槽内の洗濯物の布質を判定する布質判定手段と、前記布質判定手段の判定結果を入力して、前記駆動手段、送風手段、加熱手段、冷却送風手段等の動作を制御し乾燥行程を制御する制御手段とを備え、前記制御手段は、前記内槽を回転させながら乾燥する槽回転モードと前記回転翼を回転させながら乾燥する回転翼回転モードの時間比率の異なる行程を２つ以上有し、前記布質判定手段の判定結果により少なくとも１つ以上の行程の時間を補正するようにした洗濯乾燥機において、前記乾燥行程が進むにつれて、前記槽回転モードの時間比率を前記回転翼回転モードの時間比率よりも減らしたのち、前記槽回転モードを終了させるとともに前記回転翼回転モードのみを実施してから前記乾燥行程を終了するようにしたから、洗濯物の種類が異なっても、行程が切り換わるときの乾燥度合いをほぼ一定にすることができるので、布からみに起因するしわの発生を低減することができ、また乾燥むらがなく、効率よく乾燥することができる。
【００９１】
また、請求項２に記載の発明によれば、内槽内の洗濯物の量を検知する布量検知手段を備え、制御手段は、前記布量検知手段で検知した洗濯物量の検知結果に基づいて各行程の時間を決めるようにしたから、洗濯物の量に応じて各行程の時間を変えることにより、洗濯物の量に適した乾燥時間で乾燥を終了することができ、また乾燥むらがなく、そしてしわの発生を抑えた乾燥を実現することができる。
【００９２】
また、請求項３に記載の発明によれば、制御手段は、布質判定手段の判定結果に基づいて回転翼回転の強さを変えるようにしたから、洗濯物の種類が異なっても、上下左右に洗濯物を入れ換えることができるようになり、洗濯物にまんべんなく温風を当てられるので乾燥むらがなく、効率よく乾燥することができる。
【００９３】
また、請求項４に記載の発明によれば、運転コースなどを設定する入力設定手段を備え、布質判定手段は、前記入力設定手段で設定された内容により洗濯物の布質を判定するようにしたから、使用者に設定してもらうようにすることにより、洗濯物の布質を確実に判定でき、洗濯物の布質に応じて乾燥むらがなく効率よく乾燥することができる。
【００９４】
また、請求項５に記載の発明によれば、外槽内の水位を検知する水位検知手段と、内槽内の洗濯物の量を検知する布量検知手段とを備え、布質判定手段は、前記布量検知手段の検知結果と前記水位検知手段で検知された洗濯中の水位の変動量とにより洗濯物の布質を
判定するようにしたから、簡単な構成で精度よく布質を判別することが可能となり、しかも洗濯行程の当初に布質を判別することができ、洗濯物の布質に応じて乾燥むらがなく効率よく乾燥することができる。
【図面の簡単な説明】
【図１】 本発明の第１の実施例の洗濯乾燥機の一部ブロック化した回路図
【図２】 同洗濯乾燥機の縦断面図
【図３】 同洗濯乾燥機のモータの駆動方法を示すタイミングチャート
【図４】 同洗濯乾燥機の操作表示部の正面図
【図５】 同洗濯乾燥機の乾燥行程を示す要部フローチャート
【図６】 同洗濯乾燥機の乾燥行程での循環風の温度変化を示すタイムチャート
【図７】 本発明の第３の実施例の洗濯乾燥機の一部ブロック化した回路図
【図８】 同洗濯乾燥機の操作表示部の正面図
【図９】 同洗濯乾燥機の布質判定方法を示す要部フローチャート
【図１０】 同洗濯乾燥機の水位変化を示すタイムチャート
【符号の説明】
１ 筐体
３ 外槽
４ 内槽
５ 回転翼
９ モータ（駆動手段）
１２ 乾燥用送風機（送風手段）
１３ ヒータ（加熱手段）
１７ 冷却用送風機（冷却送風手段）
２５ 制御手段
３９ 布質判定手段[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a washing and drying machine having a process of drying clothes by blowing warm air into an inner tub having a central axis of rotation in a vertical direction, and capable of consistently performing from washing to drying.
[0002]
[Prior art]
  Conventionally, this type of washing / drying machine has an inner tub having a rotation center axis in a vertical direction in an outer tub elastically suspended in a casing as disclosed in, for example, Japanese Patent Laid-Open No. 11-276661. In the washing process and the rinsing process, the rotating blades are rotated to wash the laundry (clothing) in the inner tub and rinse, In the dehydration process, the inner tub is rotated at high speed for dehydration, and in the drying process following the dehydration process, the air heated by the heating device is blown into the inner tub by a blower and dried.
[0003]
  The operation of the above configuration will be briefly described. After completion of the dehydration process, the rotor blades are alternately turned right and left at a rotational speed of 130 r / min for 1 second and 0.5 seconds off alternately. A reciprocating scraping process is performed, and the laundry stuck to the inner wall surface of the inner tub by centrifugal force is scraped off during dehydration.
[0004]
  Next, after this scraping step, the drying step is started. First, the rotating blade is rotated at a rotation speed of 130 r / min for 0.5 seconds on and 0.5 seconds off, and the right rotation and the left rotation are alternately repeated for 5 seconds. 10 to 10 reciprocations, the laundry dispersed on the rotor blades is randomly replaced and loosened, and then the warm air heated by the heating device is supplied into the inner tub for a few minutes. dry. Then, the degree of drying is determined, and if it is dry, the drying is finished and the process proceeds to blowing, but if it is not dried, the above-described loosening process and drying operation are repeated again.
[0005]
[Problems to be solved by the invention]
  In such a conventional washing and drying machine, it is only necessary to repeat the loosening operation for 10 to 20 seconds and the stopping operation for several minutes until the end of drying from the beginning of drying, and the ratio of the unraveling process remains low and proceeds to the end of drying. When the amount of laundry is large, the replacement operation is not performed sufficiently, the drying speed of the upper laundry that is easily hit by hot air becomes faster, the drying speed of the lower laundry becomes slower, and uneven drying tends to occur. There was a problem.
[0006]
  In addition, when there is a large amount of synthetic fiber in the laundry, it is relatively easy to loosen, and uneven drying is difficult to occur. However, when there is a large amount of cotton, it is difficult to loosen, so that dry unevenness is particularly likely to occur.
[0007]
  The present invention solves the above-described conventional problems, and even when there is a large amount of laundry, the laundry is sufficiently replaced up and down and left and right so that it can be efficiently dried without unevenness of drying, and regardless of the type of laundry. The purpose is to enable efficient drying without uneven drying even if there is a lot of cotton.
[0008]
[Means for Solving the Problems]
  In order to achieve the above object, the present invention supports an inner tub having a rotation center axis in a vertical direction in an outer tub elastically supported in a casing, and a rotor blade on the inner bottom of the inner tub. The inner tank or the rotor blade is driven by the driving means, the circulating air heated by the heating means is blown into the inner tank by the blowing means, and the cooling air is supplied from the outside to the inside of the housing by the cooling blowing means. Introduce and input the determination result of the cloth quality determination means for determining the quality of the laundry in the inner tub to the control means, and control the operation of the driving means, the air blowing means, the heating means, the cooling air blowing means, etc. The control means has two or more strokes having different time ratios between a tank rotation mode for drying while rotating the inner tank and a rotary blade rotation mode for drying while rotating the rotary blade. At least one or more strokes depending on the determination result of the determination means So as to correct betweenAs the drying process proceeds, the time ratio of the tank rotation mode is reduced from the time ratio of the rotary blade rotation mode, and then the tank rotation mode is ended and only the rotary blade rotation mode is performed, and then the drying process is ended. Made
Is.
[0009]
  As a result, even when there is a lot of laundry, the laundry can be fully exchanged up and down, left and right, and it can be dried efficiently without uneven drying, and it can be efficiently dried without uneven drying even if there is a lot of cotton. Can do.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
  The invention according to claim 1 of the present invention includes an outer tub elastically suspended in a casing, an inner tub having a rotation center axis in a vertical direction and rotatably supported in the outer tub, Rotating blades provided rotatably at the inner bottom of the tank, driving means for driving the inner tank or the rotating blades, blowing means for blowing circulating air into the inner tank, and air blown by the blowing means Heating means for heating, cooling air blowing means for introducing cooling air into the housing from the outside, cloth quality determining means for determining the cloth quality of the laundry in the inner tub, and determination results of the cloth quality determining means And a control means for controlling the operation of the driving means, the air blowing means, the heating means, the cooling air blowing means, etc. and controlling the drying process, the control means drying the tank while rotating the inner tank Time of rotation mode and rotation mode of rotating blade that dries while rotating the rotor Have different strokes of rates two or more, the fabric quality determination means a determination result by at least one washing and drying machine so as to correct the time of strokeAs the drying process proceeds, after the time ratio of the tank rotation mode is reduced from the time ratio of the rotary blade rotation mode, the tank rotation mode is terminated and only the rotary blade rotation mode is performed. So as to finish the drying processIt is a thing. Therefore, by performing a process in which the time ratio of the rotary blade rotation mode is high as the drying progresses, the drying rate of the laundry is low in the first half of the drying, so the tank rotation is the main drying, resulting from the fabric entanglement In the latter half of the drying process, the main part of the drying is rotation of the rotor blades, so that even when there is a lot of laundry, the laundry can be exchanged up, down, left and right. Can be dried efficiently without uneven drying.
[0011]
  In addition, when there is a large amount of synthetic fiber in the laundry, the degree of dehydration at the start of drying is high, and the degree of progress of drying is fast, but conversely when the amount of cotton is large, the degree of dehydration at the start of drying is low and the degree of progress of drying is also low Although it is generally slow, the time of at least one or more strokes is corrected according to the determination result of the cloth quality determination means. Therefore, if there are a lot of synthetic fibers, the amount of cotton is shorter than the standard time. In this case, by correcting for longer than the standard time, even if the type of laundry is different, the degree of drying when the process switches can be made almost constant. It can be reduced and can be dried efficiently without unevenness of drying.
[0012]
  The invention according to claim 2 is the invention according to claim 1, further comprising a cloth amount detecting means for detecting the amount of laundry in the inner tub, and the control means is the laundry detected by the cloth amount detecting means. The time for each process is determined based on the detection result of the quantity. If you set the time for each process according to the rated capacity, there is a problem that the drying time becomes too long when the amount of laundry is small, and it becomes too dry. If there is a lot of laundry, there is a problem that it will end in an undried state.To solve this problem, there is a way to lengthen the last stroke, There is a problem that the drying time of the rotary blade rotation mode is excessively long in a state where the rate is low, and the laundry cannot excessively entangle wrinkles. Therefore, by changing the time of each process according to the amount of laundry, drying can be completed in a drying time suitable for the amount of laundry, there is no uneven drying, and wrinkle generation is suppressed. Drying can be realized.
[0013]
  The invention according to claim 3 is the invention according to claim 1, wherein the control means changes the strength of rotation of the rotor blades based on the determination result of the cloth quality determination means. If there is a lot of cotton, for example, by making the on time longer than the standard time period, you can change the laundry up and down, left and right, so you can apply hot air evenly to the laundry,
It is possible to dry efficiently without unevenness of drying.
[0014]
  According to a fourth aspect of the invention, there is provided the input setting means for setting a driving course or the like according to the first aspect of the invention, and the cloth quality judging means is configured to determine the laundry according to the contents set by the input setting means. The cloth quality is judged, for example, by providing a “synthetic fiber course” as an input setting means for drying laundry with a large amount of synthetic fiber and allowing the user to set the laundry. It is possible to reliably determine that the article has a large amount of synthetic fiber, and according to the quality of the laundry, the article can be efficiently dried without uneven drying.
[0015]
  The invention according to claim 5 includes the water level detection means for detecting the water level in the outer tub and the cloth amount detection means for detecting the amount of laundry in the inner tub in the invention according to claim 1. The cloth quality determination means is configured to determine the cloth quality of the laundry based on the detection result of the cloth amount detection means and the amount of change in the water level during washing detected by the water level detection means. With the configuration, it is possible to accurately determine the cloth quality, and further, it is possible to determine the cloth quality at the beginning of the washing process, and it is possible to efficiently dry without uneven drying according to the cloth quality of the laundry.
[0016]
【Example】
  Embodiments of the present invention will be described below with reference to the drawings.
[0017]
  Example 1
  As shown in FIG. 2, the housing 1 is configured such that an outer tub 3 is elastically supported by a plurality of suspensions 2 and vibrations during operation are absorbed by the suspensions 2. Inside the outer tub 3, an inner tub 4 having a rotation center axis in the vertical direction and rotatably supporting laundry and a drying object (hereinafter referred to as clothing) is rotatably supported. A rotary blade 5 for stirring the above is rotatably provided. The rotary blade 5 is formed in a pan shape whose outer periphery is inclined.
[0018]
  A large number of small holes (not shown) are provided in the inner peripheral wall of the inner tank 4, and a fluid balancer 6 is provided thereabove. Near the center of the bottom of the outer tub 3 and the inner tub 4, there is a washing / dehydrating shaft 7 that is hollow and has a biaxial structure, and a clutch that switches transmission of rotational force to the washing / dehydrating shaft 7 during washing or dehydration. 8 is provided. A motor (driving means) 9 is provided in the outer tub 3 and drives the inner tub 4 or the rotary blade 5 via the clutch 8.
[0019]
  A passage is formed from the lower part of the outer tub 3 to the circulation duct 11 via a retractable lower bellows-like hose 10, and the outlet of the circulation duct 11 is connected to the inlet of a drying fan (blower unit) 12. The outlet of the drying blower 12 is connected to a passage 11a, a heater 13 as a heating means is provided in the passage 11a, and a telescopic upper bellows-like hose 14 is connected to the passage 11a. The upper bellows-like hose 14 opens toward the inner tank 4, and the inner tank 4 communicates with the outer tank 3 through a small hole in the inner peripheral wall, so that these passages constitute a circulation path.
[0020]
  An openable / closable inner lid 15 is provided in the upper part of the inner tub 4, and a hot air jet hole 16 is opened in the vicinity of the inner lid 15, followed by a telescopic upper bellows-like hose 14. The cooling blower (cooling blower means) 17 is attached to the side surface of the housing 1 so as to introduce outside air into the housing 1. The drain valve 18 drains the water in the outer tub 3, and the switching valve 19 switches the circulation path.
[0021]
  The water supply valve 20 supplies water into the inner tank 4, and the water level detection means 21 detects the water level in the outer tank 3. The temperature detector 22 detects the temperature of the circulating air and is provided between the outlet of the drying fan 12 and the heater 13.
[0022]
  The control device 23 performs washing and rinsing based on the setting contents set by the operation display unit 24.
The control unit controls a washing process having each dehydration process and a drying process following the washing process, and is configured as shown in FIG.
[0023]
  The control means 25 is composed of a microcomputer or the like, inputs the output of the water level detection means 21, displays the setting contents on the display means 27 based on the setting contents set by the input setting means 26, and is bidirectional. Washing is performed by controlling the operation of the clutch 8, the drying fan 12, the heater 13, the cooling fan 17, the drain valve 18, the switching valve 19, the water supply valve 20 and the like through a load driving means 28 composed of a thyristor, a relay and the like. And control the drying process. 29 is a commercial power source.
[0024]
  The rotation control means 30 is a part of the control means 25 and is constituted by a microcomputer or the like. The rotation control means 30 controls the rotation of the motor 9 by controlling the inverter circuit 33 via the drive circuit 32 based on information from the position detection means 31. Like to do.
[0025]
  Although the motor 9 is a direct current brushless motor, although not shown, it is composed of a stator having a three-phase winding and a rotor having a two-pole permanent magnet disposed on the ring. The stator has a three-phase winding. The first winding 9a, the second winding 9b, and the third winding 9c to be configured are wound around an iron core provided with a slot.
[0026]
  The inverter circuit 33 is composed of a switching element composed of a parallel circuit of a power transistor (IGBT) and a reverse conducting diode. The switching element 33a is composed of a series circuit of the switching element 33b, a series circuit of the switching element 33c and the switching element 33d, and a series circuit of the switching element 33e and the switching element 33f, and the series circuit of each switching element is connected in parallel. .
[0027]
  Here, both ends of the series circuit of the switching elements are input terminals, connected to a DC power source, and output terminals are respectively connected to connection points of two switching elements constituting the series circuit of the switching elements. The output terminal is connected to the U terminal, V terminal, and W terminal of the three-phase winding, and the U terminal, V terminal, and W terminal are connected by the on / off combination of two switching elements constituting the series circuit of the switching element. The three states are positive voltage, zero voltage, and release, respectively.
[0028]
  On / off of the switching element is controlled by the rotation control means 30 based on information from the three position detection means 31a, 31b, 31c made of the Hall IC. The position detection means 31a, 31b, 31c are arranged on the stator so as to face the permanent magnets of the rotor at an electrical angle of 120 degrees.
[0029]
  As shown in FIG. 3, during one rotation of the rotor, the three position detectors 31a, 31b, 31c each output a pulse at the timing shown in the figure. The rotation control means 30 detects the timing of the arrow shown in the figure (when the signal state of any of the three position detection means changes), and based on the signals of the position detection means 31a, 31b, 31c, By changing the on / off states of the switching elements 33a to 33f, the U terminal, the V terminal, and the W terminal are set to three states of positive voltage, zero voltage, and release, and the first winding 9a and the second winding of the stator A current is generated by energizing the winding 9b and the third winding 9c to rotate the rotor.
[0030]
  The switching elements 33a, 33c, and 33e are each controlled by pulse width modulation (PWM), and for example, the rotational speed of the rotor is controlled by controlling the energization ratio of high and low at a repetition frequency of 10 kHz. The rotation control means 30 detects the cycle each time the signal state of any of the three position detection means 31a, 31b, 31c changes, calculates the rotation speed of the rotor from that period, and sets it to the set rotation speed. In addition, the switching elements 33a, 33c and 33e are PWM-controlled.
[0031]
  The resistor 34 detects current, and the input current value of the inverter 33 is detected by the voltage across the resistor 34. The commercial power supply 29 is connected to the inverter 33 via a direct current power converter comprising a diode bridge 35, a choke coil 36, and a smoothing capacitor 37. However, this is an example, and the configuration of the DC brushless motor 9, the configuration of the inverter 33, and the like are not limited thereto.
[0032]
  As shown in FIG. 4, the operation display unit 23 includes a water level setting switch 26a, a washing time setting switch 26b, a rinse number setting switch 26c, a dehydration time setting switch 26d, a drying time setting switch 26e, a start / pause switch 26f, a course Input setting means 26 such as a setting switch 26g and a power on / off switch 26h, a water level display portion 27a, a washing time display portion 27b, a rinse count display portion 27c, a dehydration time display portion 27d, a drying time display portion 27e, and a remaining time display It is comprised with the display means 27, such as the part 27f and the course display part 27g.
[0033]
  Here, with regard to the driving course, the course setting switch 26g allows the selection of three courses, which are performed from washing to drying, a course with a large amount of synthetic fibers and a cotton, and a course with only washing, a delicate course, and a quick course.
[0034]
  The cloth amount detection means 38 and the cloth quality determination means 39 are part of the control means 25 and are constituted by a microcomputer. The cloth amount detection means 38 receives the signal from the position detection means 31a, thereby The amount of clothes put into the tank 4 is detected, and the cloth quality determination means 39 determines the cloth quality of the clothes based on the operation course set by the input setting means 26.
[0035]
  Here, in the drying process, the control means 25 is a first drying process in which the time ratio is different between the tank rotation mode for drying while rotating the inner tank 4 and the rotating blade rotation mode for drying while rotating the rotating blades 5. , Having a second drying process and a third drying process, the time of each process is determined based on the detection result of the laundry amount detected by the cloth amount detection means 38, and the determination result of the cloth quality determination means 39 Thus, the process time is corrected.
[0036]
  The operation in the above configuration will be described. First, the washing process will be described with reference to FIG. When the operation is started by putting clothes 40, detergent or the like into the inner tub 4, the control means 25 turns the rotating blade 5 to the right, for example, 1 second on and 2 seconds off via the rotation control means 30. Rotate twice. At this time, the cloth amount detection means 38 receives the signal from the position detection means 31a, detects the inertial rotation amount of the rotor when the motor 9 is turned off, and thereby the clothes put into the inner tub 4 To detect the amount of.
[0037]
  Based on the amount of clothing detected by the cloth amount detection means 38, the control means 25 performs control by changing the water level, washing time, dehydration time, etc. in the washing process, and changes the time of each process in the drying process. Then, the water supply valve 20 is driven by the control device 23, water is supplied until the water level detected by the water level detection means 21 reaches a predetermined water level determined for each amount of clothes, and the motor 9 is driven to rotate the inner tub 4. . At this time, the drain valve 18 and the switching valve 19 are closed.
[0038]
  Thereby, the outer peripheral part of the water in the inner tank 4 rises by centrifugal force. Accordingly, the water between the inner tub 4 and the outer tub 3 rises along the inner wall of the outer tub 3, and then is sprinkled from the upper part of the inner tub 4 into the inner tub 4 and circulates. Thereby, in the inner tub 4, the water containing the detergent passes through the clothing 40 and is washed.
[0039]
  Thereafter, the drain valve 18 is opened to drain the water, and the water is supplied again, followed by a rinsing process of clothing as in the washing process. In the dehydration process, the inner tub 4 containing the clothes 40 is rotated at a high speed.
The garment 40 is pressed against the inner wall of the inner tub 4 by the centrifugal force generated, and the water is separated from the garment 40 and dehydrated by this centrifugal force.
[0040]
  In the drying process, with the switching valve 19 opened, dry hot air is sent to the inner tank 4 through the upper bellows-like hose 14 and the hot air outlet 16 by the air blown by the drying fan 12 and the heat generated by the heater 13.
[0041]
  At this time, the clothes 40 are rotated together with the inner tub 4 by the rotation of the inner tub 4, are flipped up by the left-right rotation of the rotary blade 5, or are subsequently dropped, and are fed into the inner tub 4. The heated warm air takes moisture from the clothes when passing through the movement gaps of the clothes, and after getting out from the inner tank 4 to the inside of the outer tank 3 in a moist state, passes through the lower bellows-like hose 10. , Through the switching valve 19 to the circulation duct 11. This flow is indicated by an arrow line in FIG.
[0042]
  When warm air containing moisture passes through the inner wall of the outer tub 3 and the circulation duct 11, the outer wall of the outer tub 3 and the circulation duct 11 is cooled by the inflow of external air by the cooling fan 17. Then, the moisture of the moist air is condensed on the inner wall, and the moist hot air is dehumidified and returned to the drying fan 12. The moisture condensed on the inner wall of the outer tub 3 passes through the switching valve 19 and is appropriately discharged from the drain outlet 41 together with the moisture condensed on the inner wall of the circulation duct 11. Then, after the drying process is finished, the process is finished after the air blowing process for driving the drying fan 12 and the cooling fan 17 is performed.
[0043]
  Next, details of the operation in the drying process will be described.
[0044]
  FIG. 5 is a flowchart showing the flow of each process in the drying process of the present invention. When the washing process is completed and the drying process is started, first, in step 100, clothes are put into the inner tub 4 by the final dehydration of the washing process. As it is stuck, it is peeled off and loosened sufficiently to perform a cloth peeling process to increase the contact area of the clothing with air.
[0045]
  Specifically, the reciprocating blade 5 is rotated 5 times in the clockwise and counterclockwise directions with a time limit of 1 second on and 2 seconds off. By doing so, the clothes stuck in the inner tub 4 at the time of dehydration are peeled off from the inner tub 4, and the cloth area of the garment is increased to increase the contact area with the air, and the subsequent drying progresses quickly. To be. At this time, since it is a drying process, the dry hot air is sent to the inner tank 4 through the upper bellows-like hose 14 and the hot air jet hole 16 by the air blow of the drying blower 12 and the heat generation of the heater 13, and the cooling blower 17 is also driven.
[0046]
  Next, in Step 101 to Step 103, the first drying process is different from the first drying process in which the time ratios of the tank rotation mode for drying while rotating the inner tank 4 and the rotating blade rotation mode for drying while rotating the rotating blade 5 are different. The drying process is performed. Table 1 shows the operation time for each stroke, the time for rotating the tank, and the time for rotating the rotor blades.
[0047]
[Table 1]

[0048]
  The time for each stroke is determined so as to achieve the most suitable drying for the amount of clothing detected by the cloth amount detection means 38 at the beginning of the washing stroke, and the first drying stroke is performed when the amount of clothing is 3 to 4 kg. In this case, since the time for rotating the rotor blade is 1 minute with respect to the time for rotating the tank of 15 minutes, the time ratio of rotating blade rotation is about 6%. The second drying process is 50 minutes, and the rotating blade rotation time is 1 minute with respect to the tank rotating time of 4 minutes. Therefore, the rotating blade rotating time ratio is 20%, and the third drying process is 100 minutes. In minutes, the time ratio of rotating blade rotation is 100%, and the time ratio of rotating blade rotation is increased as the stroke proceeds.
[0049]
  According to the experiments by the inventors, in the case of this type of washing / drying machine, the drying time while rotating the rotary blade 5 is longer than the drying time while rotating the inner tub 4 or in a stationary state. I found that it can be shortened. For this reason, a method of mainly drying the rotor blades from the beginning of drying can be considered. However, if this is done, the garment becomes entangled and causes wrinkles.
[0050]
  On the other hand, it was found that if the drying rate of the clothes exceeds 90%, the entanglement and wrinkles of the clothes hardly progress even if the rotating blades are the main component. Therefore, by setting the three drying processes as described above, it is possible to reduce the generation of wrinkles caused by the cloth, and the clothes can be replaced vertically and horizontally, and warm air is applied evenly to the clothes. Therefore, there is no unevenness in drying and it can be efficiently dried.
[0051]
  Moreover, the time ratio of the tank rotation of the first drying process is about 94%. According to the experiments by the inventors, the first drying process is mainly performed by the tank rotation, but the clothes are only rotated integrally with the inner tank 4 during the rotation of the tank. Hot air concentrates on the upper clothing close to, and the clothing temperature rises, causing wrinkles and damage.
[0052]
  Therefore, in this embodiment, in order to change the clothes up and down and right and left every period (16 minutes), the rotation time of the rotor blades is set to be 1 cycle on and 2 seconds off. ing. However, it has been found that when the rotation time of the rotary blade 5 such as for changing the clothes up, down, left and right is 10% or more in the first drying process, wrinkles due to entanglement of the clothes become severe.
[0053]
  Therefore, the rotation time of the rotor 5 including strong rotation that allows clothing to be interchanged up, down, left, and right
When the ratio is less than 10%, that is, the tank rotation time ratio is 90% or more, generation of wrinkles can be suppressed, and drying can be performed efficiently without uneven drying.
[0054]
  Also, in both the first drying process and the second drying process, the rotation time of the rotary blade 5 is 60 seconds, and a strong rotation of 1 second on and 2 seconds off is performed once, 0.3 seconds on and 2.7 seconds off. The weak rotation is made to reciprocate 9 times. This is because, as described above, even if the tank rotation is mainly performed, strong rotation must be performed in order to periodically change the clothing up, down, left, and right, and the clothes in the inner tank 4 may become unbalanced. If the inner tub 4 is rotated in this state, the shaking becomes large, and the outer tub 3 hits the housing 1 or the like and an abnormal sound is generated.
[0055]
  Therefore, even if the clothing becomes unbalanced by strong rotation, the clothing in the inner tub 4 becomes uniform by performing weak rotation after that, and the whirling of the outer tub 3 becomes larger when the tub rotates thereafter, and the housing It is possible to prevent an abnormal sound from being generated by hitting 1 or the like.
[0056]
  Next, in step 104, it is determined whether or not dry detection has been completed. If dry detection has been detected, the flow proceeds to step 105.
[0057]
  The circulating air temperature detected by the temperature detecting means 22 during the drying process changes as shown in FIG. That is, when the drying process starts, the drying fan 12 and the heater 13 are operated, and the hot air circulates in the circulation path. The hot air blown out from the hot air blowing hole 16 to the inner tub 4 is blown onto the wet clothing agitated by the rotary blade 5 to perform efficient drying.
[0058]
  Further, the warm air that has become moist due to moisture removed from the clothing performs heat exchange through the wall surface of the circulation duct 11 by the air sent by the cooling blower 17 when passing through the circulation duct 11. At this time, the warm air that has been cooled to reach the dew condensation point forms dew condensation water on the inner wall surface of the circulation duct 11.
[0059]
  In the constant-rate drying period shown in FIG. 6, the amount of moisture evaporated from the clothes is constant (equilibrium state), and the cooling effect by the cooling air is spent on the state change of condensation, and the wall surface temperature and temperature detection of the circulation duct 11 are detected. The circulating wind temperature detected by the means 40 remains in an equilibrium state.
[0060]
  Further, the drying proceeds and enters the decreasing rate drying period, the amount of evaporated water from the clothing gradually decreases, and the temperature of the circulating air rises. Therefore, the temperature detected by the temperature detecting means 22 in the constant rate drying period When it rises by ΔT from Ta, the end of drying is detected.
[0061]
  In step 105, after performing a blowing process for driving the drying fan 12 and the cooling fan 17, drying is terminated in step 106.
[0062]
  Next, a method for correcting the time of each drying process based on the quality of clothing determined by the cloth quality determination means 39 will be described.
[0063]
  As shown in (Table 1), the control means 25 determines the time from the first drying process to the third drying process based on the amount of clothing detected by the cloth amount detecting means 38. Based on the quality of clothing determined by the cloth quality determination means 39, the time of each process is corrected as shown in (Table 2).
[0064]
[Table 2]

[0065]
  For example, when the amount of clothing is 3 to 4 kg, the time from the first drying step to the third drying step of standard clothing is 96 minutes, 50 minutes, and 100 minutes in order. If it is a large number, correct it to 72 minutes, 38 minutes, and 80 minutes, and if it is a large number, correct it to 120 minutes, 62 minutes, and 120 minutes. By correcting in this way, it is possible to make the degree of drying when the stroke changes even if the type of clothing is almost constant, so that the generation of wrinkles caused by the cloth can be reduced, and the drying can be reduced. It can be efficiently dried without unevenness.
[0066]
  The cloth quality judging means 39 judges the quality of the clothes based on the driving course set by the input setting means 26.
[0067]
  As described above, according to the present embodiment, since the time of at least one or more strokes is corrected based on the determination result of the cloth quality determination means 39, when there are a lot of synthetic fibers, the cotton time is shorter than the standard time. If there is a large amount of wrinkles, it can be corrected to be longer than the standard time, so that the degree of drying when the process changes even if the type of laundry is different can be made almost constant. Can be reduced, and drying can be efficiently performed without unevenness of drying.
[0068]
  In addition, by changing the time of each process according to the amount of clothing, drying can be completed in a drying time suitable for the amount of clothing, and there is no drying unevenness and drying with reduced wrinkles is realized. can do.
[0069]
  Further, the cloth quality determination means 39 is for determining the cloth quality of the laundry based on the contents set by the input setting means 26, and it is ensured by having the user set the cloth quality. And can be dried efficiently without unevenness of drying according to the quality of the laundry.
[0070]
  Further, the temperature detection means 22 is provided between the outlet of the drying blower 12 and the heater 13 so as to detect the temperature of the circulating air, and only ΔT from the temperature Ta detected by the temperature detection means 22 in the constant rate drying period. If it rises, the end of drying is detected, so it can be finished in a drying time according to the amount of clothing and the ambient temperature, and even if the time of the third drying process is set longer, It never ends in an over-dried state.
[0071]
  In this embodiment, the drying operation is controlled by three drying strokes having different time ratios between the tank rotation mode and the rotary blade rotation mode. However, this is not limited to three strokes, and is divided into further strokes. Finer control will have even more effects.
[0072]
  Moreover, the time of each stroke, the time of tank rotation in each stroke, the time of rotor blade rotation, and the number of rotations of tank rotation are one embodiment in the present invention, and are not limited to these numerical values.
[0073]
  Further, although a direct current brushless motor is used as the drive means and the inverter is controlled, this may be an induction motor.
[0074]
  (Example 2)
  The control means 25 shown in FIG. 1 is based on the quality of clothes determined by the cloth quality determination means 39 in the first drying process, the second drying process, and the third drying process in the drying process (Table 3). ), The strength of rotating blade rotation is changed. Other configurations are the same as those of the first embodiment.
[0075]
[Table 3]

[0076]
  The operation in the above configuration will be described. In the first drying process, the second drying process, and the third drying process in the drying process, as shown in (Table 3), when there is a lot of cotton, the on-time is made longer and stronger than the standard time period. As a result, the laundry can be exchanged vertically and horizontally, and since warm air can be applied evenly to the laundry, drying can be performed efficiently without unevenness of drying. On the other hand, if there is a lot of synthetic fiber, the on-time is shorter than the standard time period, so thatThe lowCan be reduced, and the finish of drying can be improved.
[0077]
  As described above, according to the present embodiment, the strength of the rotating blade rotation is changed based on the determination result of the cloth quality determination means 39. By extending the time, the laundry can be exchanged up and down, left and right, and since warm air can be applied evenly to the laundry, it can be efficiently dried without uneven drying.
[0078]
  In the present embodiment, the on-time of the motor 9 is changed as a method of changing the strength of rotation of the rotor blades, but this has the same effect even if the number of rotations of the motor 9 is changed.
[0079]
  Moreover, the time limit of the rotation blade rotation in each stroke is one embodiment in the present invention, and is not limited to these numerical values.
[0080]
  Further, although a direct current brushless motor is used as the drive means and the inverter is controlled, this may be an induction motor.
[0081]
  (Example 3)
  As shown in FIG. 7, the control means 42, the cloth amount detection means 45 and the cloth quality determination means 46 that are a part of the control means 42 are configured by a microcomputer or the like, and the control means 42 is set by the input setting means 43. Based on the set contents, the setting contents are displayed on the display means 44 and the washing and drying operations are controlled.
[0082]
  Similarly to the first embodiment, the cloth amount detection means 45 detects the amount of clothing put into the inner tub 4 by inputting a signal from the position detection means 31a. The quality determination means 46 inputs the detection result of the cloth amount detection means 45 and the signal from the water level detection means 21 to determine the cloth quality of the clothes. Other configurations are the same as those of the first embodiment, and the same reference numerals are given and description thereof is omitted.
[0083]
  As shown in FIG. 8, the operation display section includes a water level setting switch 43a, a washing time setting switch 43b, a rinse count setting switch 43c, a dehydration time setting switch 43d, a drying time setting switch 43e, a start / pause switch 43f, and a course setting. Input setting means 43 such as a switch 43g, a power on / off switch 43h, a water level display unit 44a, a washing time display unit 44b, a rinse count display unit 44c, a dehydration time display unit 44d, a drying time display unit 44e, and a remaining time display unit 44f and a display means 44 such as a course display section 44g. Here, with regard to the driving course, the course setting switch 43g can select an automatic course from washing to drying and a delicate course only for washing, rushing and rushing.
[0084]
  With reference to FIGS. 9 and 10 in the above configuration, the operation when determining the quality of the laundry will be described.
[0085]
  In step 120 of FIG. 9, when it is determined that the start / pause switch 43f has been operated, the control means 42 starts operation. In step 121, as in the first embodiment, the cloth amount detection means 45 receives the signal from the position detection means 31a, thereby detecting the inertial rotation amount of the rotor when the motor 9 is turned off. The amount of clothes put into the inner tub 4 is detected.
[0086]
  Next, in step 122, water is supplied until the water level detected by the water level detection means 21 reaches a predetermined water level determined for each amount of clothes. In step 123, the rotating blade 5 is reversed left and right, for example, for 2 seconds on and 1 second off via the rotation control means 30, and this stirring is performed for 1 minute. In step 124, the cloth quality determination means 46 inputs a signal from the water level detection means 21 and measures the amount of decrease in the water level from before stirring. In step 125, the cloth quality determination means 46 detects the cloth amount detection means 45. In step 126, the degree of water level reduction is determined according to the amount of clothing detected in step S <b> 126. If the water level reduction is small, it is determined that there are more synthetic fibers, and if the water level reduction is large, it is determined that there is more cotton. Proceed to
[0087]
  FIG. 10 shows the water level at the stirring for 1 minute after reaching the predetermined water level determined for each amount of clothes.
This shows an outline of the decrease in the pressure, and in detail, it fluctuates in synchronization with the on / off of stirring. When the initial water level is hi and there is a lot of cotton, the amount of decrease at time tm (for example, 1 minute and 5 seconds longer than the stirring time) is large hc. ha, and in the case of standard clothing b, hb. This is because the clothes absorb water by stirring, and the synthetic fiber has a low water absorption rate and the cotton has a high water absorption rate.
[0088]
  In the subsequent steps, the washing and drying operations are performed in the same manner as in the first or second embodiment, and the description thereof is omitted.
[0089]
  As described above, according to the present embodiment, it is possible to accurately determine the cloth quality with a simple configuration, and furthermore, it is possible to determine the cloth quality at the beginning of the washing process, and to dry according to the laundry cloth quality. It can be efficiently dried without unevenness.
[0090]
【The invention's effect】
  As described above, according to the first aspect of the present invention, the outer tub elastically suspended in the housing and the rotation center axis in the vertical direction are rotatably supported in the outer tub. An inner tub, a rotating blade rotatably provided on the inner bottom of the inner tub, a driving means for driving the inner tub or the rotating wing, a blowing means for blowing circulating air into the inner tub, and the blowing means Heating means for heating air blown by the air, cooling air blowing means for introducing cooling air into the housing from the outside, cloth quality determining means for determining the cloth quality of the laundry in the inner tub, and the cloth And a control means for controlling the operation of the driving means, the air blowing means, the heating means, the cooling air blowing means, etc., and controlling the drying process. Tank rotation mode for drying while rotating and rotation for drying while rotating the rotor blades Different stroke of time ratio of the rotational mode having two or more, the fabric quality determination means a determination result by at least one washing and drying machine so as to correct the time of strokeAs the drying process proceeds, after the time ratio of the tank rotation mode is reduced from the time ratio of the rotary blade rotation mode, the tank rotation mode is terminated and only the rotary blade rotation mode is performed. So as to finish the drying processTherefore, even if the type of laundry is different, the degree of drying when the process is switched can be made almost constant, so that the generation of wrinkles caused by tangling of the cloth can be reduced, and there is no unevenness in drying. , Can be dried efficiently.
[0091]
  According to a second aspect of the present invention, the cloth amount detection means for detecting the amount of laundry in the inner tub is provided, and the control means is based on the result of detection of the laundry amount detected by the cloth amount detection means. Therefore, by changing the time for each stroke according to the amount of laundry, drying can be completed in a drying time suitable for the amount of laundry, and uneven drying It is possible to achieve drying without wrinkles and without wrinkles.
[0092]
  According to the invention described in claim 3, since the control means changes the strength of the rotating blade rotation based on the determination result of the cloth quality determination means, The laundry can be exchanged to the left and right, and since the warm air can be applied evenly to the laundry, there is no drying unevenness and the laundry can be efficiently dried.
[0093]
  According to the fourth aspect of the present invention, there is provided input setting means for setting a driving course or the like, and the cloth quality determination means determines the cloth quality of the laundry based on the contents set by the input setting means. Therefore, by having the user set it, the cloth quality of the laundry can be reliably determined, and can be efficiently dried without unevenness of drying according to the cloth quality of the laundry.
[0094]
  According to the invention described in claim 5, the water level detection means for detecting the water level in the outer tub and the cloth amount detection means for detecting the amount of laundry in the inner tub, The cloth quality of the laundry is determined based on the detection result of the cloth amount detecting means and the amount of change in the water level during washing detected by the water level detecting means.
Since it is determined, it is possible to accurately determine the cloth quality with a simple configuration, and furthermore, it is possible to determine the cloth quality at the beginning of the washing process, and there is no unevenness in drying according to the cloth quality of the laundry. It can be dried efficiently.
[Brief description of the drawings]
FIG. 1 is a partial block circuit diagram of a washing / drying machine according to a first embodiment of the present invention.
[Figure 2] Longitudinal sectional view of the washing and drying machine
FIG. 3 is a timing chart showing a motor driving method of the washing and drying machine.
FIG. 4 is a front view of the operation display unit of the washing and drying machine.
FIG. 5 is a main flowchart showing the drying process of the washing and drying machine.
FIG. 6 is a time chart showing the temperature change of the circulating air during the drying process of the washer / dryer.
FIG. 7 is a partially block circuit diagram of the washing and drying machine of the third embodiment of the present invention.
FIG. 8 is a front view of the operation display unit of the washing and drying machine.
FIG. 9 is a main flowchart showing the cloth quality judgment method of the washer / dryer.
FIG. 10 is a time chart showing the water level change of the washer / dryer.
[Explanation of symbols]
  1 housing
  3 Outer tank
  4 Inner tank
  5 rotor blades
  9 Motor (drive means)
  12 Blower for drying (air blowing means)
  13 Heater (heating means)
  17 Cooling blower (cooling blower means)
  25 Control means
  39 Cloth quality judging means

Claims (5)

An outer tub elastically suspended in the casing, an inner tub having a central axis of rotation in the vertical direction and rotatably supported in the outer tub, and a rotating blade provided rotatably on the inner bottom of the inner tub Driving means for driving the inner tub or rotor blades, blowing means for blowing circulating air into the inner tub, heating means for heating the air blown by the blowing means, and external to the inside of the casing Cooling air blowing means for introducing cooling air from, a cloth quality determining means for determining the cloth quality of the laundry in the inner tub, and a determination result of the cloth quality determining means, the driving means, the air blowing means, Control means for controlling the operation of the heating means, cooling air blowing means, etc. and controlling the drying process, and the control means dries while rotating the tank rotation mode and rotating the rotor blades. Have two or more strokes with different time ratios in the rotor rotation mode, In the judgment result of the serial fabric quality determining means is adapted to correct the time of at least one or more strokes washing and drying machine, wherein as the drying cycle progresses, the time ratio of the tub rotating mode of the rotor blades rotating mode Time After the ratio is reduced, the washing and drying machine ends the tank rotation mode and performs only the rotary blade rotation mode and then ends the drying process .   The cloth amount detection means for detecting the amount of laundry in the inner tub is provided, and the control means determines the time for each step based on the detection result of the laundry amount detected by the cloth amount detection means. The washing dryer described.   The washing / drying machine according to claim 1, wherein the control means changes the strength of rotation of the rotating blades based on a determination result of the cloth quality determination means.   2. The washing / drying machine according to claim 1, further comprising input setting means for setting an operation course and the like, wherein the cloth quality determination means determines the cloth quality of the laundry based on the contents set by the input setting means.   A water level detecting means for detecting the water level in the outer tub and a cloth amount detecting means for detecting the amount of laundry in the inner tub, and the cloth quality determining means includes the detection result of the cloth amount detecting means and the water level detection The laundry dryer according to claim 1, wherein the cloth quality of the laundry is determined based on the amount of fluctuation of the water level during washing detected by the means.

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