JP4352754B2

JP4352754B2 - Washing and drying machine

Info

Publication number: JP4352754B2
Application number: JP2003133074A
Authority: JP
Inventors: 重陽中本; 秀隆藪内; 己紀夫田原
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 2003-05-12
Filing date: 2003-05-12
Publication date: 2009-10-28
Anticipated expiration: 2023-05-12
Also published as: JP2004329756A

Description

【０００１】
【発明の属する技術分野】
本発明は、一般家庭で使用される洗濯と乾燥を同一槽で行う洗濯乾燥機に関するものである。
【０００２】
【従来の技術】
従来、衣類を洗濯乾燥する機器としてはヒータを熱源にするものや、ヒートポンプ装置を熱源に用いたものがある（例えば、特許文献１参照）。以下、その従来例を添付図面に基づいて説明する。
【０００３】
図１２は、前記特許文献１に記載された洗濯乾燥機の側断面図である。図１２において、洗濯乾燥機１は、ケーシング２をもち、同ケーシング２の中央に衣類６を出し入れする
ためのドア１２が取付けられており、内部には回転ドラム３が収納されている。同回転ドラム３の所定の部位には衣類６を回転ドラム３の回転とともに持ち上げ落下させるためのビータ５と、洗濯水７及び乾燥のための循環エア９が出入りするパンチング孔４が開口させてある。回転ドラム３のシャフト１１は図示されない駆動用モータから回転のための動力を受けるようになっている。
【０００４】
また、ケーシング２内の回転ドラム３の背面は、空気入口２４及び空気出口２３を除き隔壁２２によって仕切られ、循環エア９が通るダクト１０、及び１３が形成されている。前記隔壁２２の前面下部は洗濯槽１４を構成し、同洗濯槽１４の部分に回転ドラム３の下部が臨んでいる。
【０００５】
前記各エアダクト１０、１３にはコンプレッサ１９、凝縮器（コンデンサ）１８、ファン１７、膨脹弁２０、蒸発器（エバポレータ）１５等が内蔵されており、いわゆるヒートポンプサイクルが形成されている。また、コンデンサ１８の一部はケーシング外背面に延長され、放熱器１６を形成している。２１はドレン排水用配管、８は洗濯排水用配管である。
【０００６】
次に、各工程と作用について説明する。洗濯、すすぎ工程は、ドア１２をあけて衣類６及び適量の洗剤を投入し、ドア１２を閉め、以下の工程を実行する。
【０００７】
水供給バルブ（図示せず）から洗濯槽１４に水位Ａの位置まで規定量の水７が供給される。回転ドラム３がプログラムされた回転数で連続または間欠的に回転し、洗浄が行なわれる。この間、衣類６はビータ５によって持ち上げられ落下する。洗濯終了後は洗濯槽１４の洗濯排水用配管８から機外に排水される。続いて、すすぎ工程が同様の工程で実行される。すすぎ水も洗濯排水として洗濯排水用配管８から機外に排水される。
【０００８】
脱水工程は、回転ドラム３がプログラムされた回転数で回転し、衣類６中の水分７を脱水する。脱水された水は、洗濯排水として洗濯排水用配管８から機外に排水される。
【０００９】
乾燥工程は、コンプレッサ１９、ファン１７及び回転ドラム３が運転されて循環エア９がダクト１０、１３及び回転ドラム３の内部を循環する。衣類６から蒸発した水蒸気は循環エア９と共に、空気出口２３、ダクト１０を通ってエバポレータ１５に接触し、冷却されて凝縮水（結露水）となって除湿される。除湿された循環エア９は、ファン１７によってコンデンサ１８に送られ、ここで加熱されて熱風となってダクト１３、空気入口２４を経て回転ドラム３内に流入し、再び衣類６から水分を蒸発させる。除湿された結露水はドレン排水用配管２１から機外に排水される。この間、回転ドラム３は洗濯工程と同様にあらかじめ設定された回転数で連続又は間欠的に回転する。
【００１０】
【特許文献１】
特開平１−３２８９３号公報（第１図）
【００１１】
【発明が解決しようとする課題】
しかしながら、前記従来の構成では、ドレン排水用配管２１と洗濯排水用配管８が別個に排水を機外に導いている。洗濯機においては上記排水用配管に相当する排水ホースは１本であり、洗濯機の設置場所に洗濯乾燥機を設置する場合などは、従来と同様に１つの排水ホースで排水処理ができることが、設置作業や防水フロアーなどの設置部材や床下の配管設備の面で望ましい。
【００１２】
ドレン排水用配管２１と洗濯排水用配管８をそのまま機内で接続すると、洗濯中に洗濯槽１４に溜められる水の水位が高く、洗濯排水中に水圧によって洗濯排水用配管８からドレン排水用配管２１へ洗濯水やすすぎ水が流れ込み、配管だけでなく、除湿や加熱を行うエバポレータ１５やファン１７やコンデンサ１８などの各手段の設置位置が洗濯水の貯水水位よりも低い場合には、これら各手段が洗剤や漂白剤などが溶けた洗濯水に濡れる恐れがあるという課題を有していた。
【００１３】
また、これを防止するためには、洗濯排水用配管８に設ける排水弁以外に、ドレン排水用配管２１への逆流を防止するための逆止弁やドレン排水用配管２１用排水弁などによる逆流防止手段が別途必要となるという課題を有していた。
【００１４】
本発明は、上記従来の課題を解決するもので、ドレン排水用配管２１への逆流を防止するとともに、１つの排水管で機外に排水できる排水処理手段を実現することを目的とするものである。
【００１５】
【課題を解決するための手段】
上記の目的を達成するために本発明は、洗濯時の排水を流す洗濯排水路と、乾燥時の結露水を流す結露排水路と、前記洗濯排水路と結露排水路の合流部に設けた排水弁と、前記排水弁よりも低い位置で結露水を溜める排水タンクと、前記結露排水路に設けられ前記排水タンク内の結露水を汲み上げる排水ポンプと、前記排水弁を制御する制御手段とを具備し、前記排水ポンプの吸水口を前記排水タンクに接続するとともに、前記排水ポンプの吐出口を前記排水弁に通じる結露排水路に接続し、前記制御手段は、洗濯水排水時に前記洗濯排水路が開のときに結露排水路側が閉となるように前記排水弁を制御し、乾燥時に前記排水ポンプを作動させているときは、結露排水路側が開となるように前記排水弁を制御するようにしたものである。
【００１６】
これにより、洗濯排水路から結露排水路への逆流を防止し、洗濯中の貯水と排水を行う１つの排水弁を用いて、洗濯水排水時に結露排水路側が閉時には洗濯排水路側が開となり、乾燥時に結露排水路側が開となることによって１つの排水管で機外に排水できる。
【００１７】
【発明の実施の形態】
請求項１に記載の発明は、同一槽内に入れた衣類に対して洗濯と乾燥を行い、乾燥時に乾燥用空気を冷却して湿気を結露水として回収する除湿手段と、洗濯時の排水を流す洗濯排水路と、乾燥時の結露水を流す結露排水路と、前記洗濯排水路と結露排水路の合流部に設けた排水弁と、前記排水弁よりも低い位置で結露水を溜める排水タンクと、前記結露排水路に設けられ前記排水タンク内の結露水を汲み上げる排水ポンプと、前記排水弁を制御する制御手段とを具備し、前記排水ポンプの吸水口を前記排水タンクに接続するとともに、前記排水ポンプの吐出口を前記排水弁に通じる結露排水路に接続し、前記制御手段は、洗濯水排水時に前記洗濯排水路が開のときに結露排水路側が閉となるように前記排水弁を制御し、乾燥時に前記排水ポンプを作動させているときは、結露排水路側が開となるように前記排水弁を制御するようにしたものであり、洗濯水排水時に結露排水路側が閉時には洗濯排水路側が開となることによって洗濯排水路から結露排水路への逆流を防止する逆流防止手段となるものである。一つの排水弁で逆流防止手段をも構成することによって、乾燥時に結露排水路側が開となる場合も１つの排水管で機外に排水できるとともに、洗濯水の貯水と排水を行う排水弁以外に、逆流防止手段を別途設ける必要がない。
【００１８】
また、除湿手段の構成上、排水弁の設置位置よりも低い位置に結露水の排水タンクを設けてその排水タンクに結露水が溜まるような場合にも、強制的に排水ポンプで結露水を汲み上げることによって、上記排水弁の位置で排水管と接続でき、洗濯排水路と結露排水路を１つの排水管につないで機外に排出することができる。
【００１９】
請求項２に記載の発明は、上記請求項１に記載の発明において、
乾燥中の結露水の発生量よりも排水ポンプの汲み上げ量が少なく、乾燥中の結露水の発生量と前記排水ポンプの汲み上げ量との差によって排水タンクに溜まる水量が増加する場合において、前記排水タンクは乾燥中に溜まる水量よりも多い容量を有するとともに、制御手段は、乾燥終了後も排水ポンプを作動して前記排水タンク内の残水を汲み上げるようにしたものであり、汲み上げ量の少ない排水ポンプでも衣類から回収される所定量の水を処理することが可能となるものである。
【００２０】
【実施例】
以下、本発明の実施例について、図面を参照しながら説明する。
【００２１】
（実施例１）
図１は本発明の実施例１の洗濯乾燥機を背面から見た斜視図、図２は側断面図である。図１において、本発明の洗濯乾燥機本体２５内には洗濯槽２６があり、モータ２７が取り付けられている。洗濯槽２６は両側面のサスペンション２９と上方部のサスペンション３０により支えられて本体２５に取り付けられている。
【００２２】
３５は圧縮機、３６は圧縮後の高温高圧の冷媒の熱を放熱する放熱器、３７は高圧の冷媒の圧力を減圧するための膨張弁、もしくは、キャピラリーチューブからなる絞り手段、３８は減圧されて低圧となった冷媒が周囲から熱を奪う吸熱器であり、圧縮機３５、放熱器３６、絞り手段３７、吸熱器３８を順に接続して再び圧縮機３５に冷媒が循環するように管路３９で連結したヒートポンプ装置を具備している。
【００２３】
４０は乾燥用空気を流す風路で、乾燥用空気を冷却する除湿手段としての前記吸熱器３８と、乾燥用空気を加熱する加熱手段としての前記放熱器３６とを連結するように構成している。洗濯槽２６と風路４０は、フレキシブルホース４１、４２によって接続されている。風路４０には送風手段４３が設けられている。４４は洗濯槽２６の外壁に設けられたダクトである。矢印Ｂはダクト４４と風路４０内の乾燥用空気の流れを示している。
【００２４】
図２において、２８はモータ２７の軸に直結して洗濯槽２６内に取り付けられた回転ドラムである。洗濯槽２６と回転ドラム２８の前面開口部に対応した位置には衣類３１を投入するためのドア３２が設けられている。本体２５と洗濯槽２６の間の隙間はベローズ３３とドアパッキング３４によって空気が本体２５内部や機外に漏れないように略密封されている。回転ドラム２８の側壁および底面部には洗濯水や乾燥用空気が出入りする孔４５と開口部４６が設けられている。５６は洗濯槽２６内壁に設けた開口部で、洗濯槽２６とダクト４４との風路をつないでいる。矢印Ｃは洗濯槽２６と回転ドラム２８内の乾燥用空気の流れを示している。
【００２５】
４７は洗濯時の排水を流す洗濯排水路、４８は乾燥時に吸熱器３８で発生した結露水を流す結露排水路で、洗濯排水路４７と結露排水路４８は一つの排水管４９につながれている。排水管４９の先端５０は機外の大気中に開口している。洗濯排水路４７と結露排水路４８の合流部には１つの排水弁６０があり、洗濯排水路４７と結露排水路４８と排水管４９と排水弁６０によって排水処理手段を構成している。
【００２６】
図３は、排水弁６０近辺の排水処理手段の構成を示す断面図である。図３において、６１は水路を開閉する弁、６２は弁６１を回転させるモータである。図３の（ａ）は、モータ６２によって弁６１をｄ側に閉じると洗濯排水路４７側が閉で結露排水路４８側が開となり、モータ６２によって弁６１を回転してｅ側に移動させると、洗濯排水路４７側が開で結露排水路４８側が閉となる。洗濯排水路４７側が開の時には結露排水路４８側が閉となることによって、洗濯排水路４７から結露排水路４８への逆流を防止する逆流防止手段を構成する。
【００２７】
以上のように構成された洗濯乾燥機について、以下、その動作、作用を説明する。洗濯、すすぎ、脱水までの洗濯工程では、水を溜める場合は、排水弁６０の弁６１の状態は図３の（ａ）のｄ側であり、洗濯排水路４７側が閉で結露排水路４８側が開とする。水供給バルブ（図示せず）から洗濯槽２６に水が供給され、図２の水位Ｄの位置まで溜められる。回転ドラム２８がプログラムされた回転数で連続または間欠的に回転し、洗浄やすすぎが行なわれる。この間、衣類３１は回転ドラム２８の回転によって持ち上げられ落下する。排水する場合は、排水弁６０の弁６１を図３の（ａ）のｅ側にする。洗濯排水路４７側が開で結露排水路４８側が閉となる。洗濯槽２６の水は、洗濯排水路４７と排水弁６０を通過して排水管４９から機外に排水される。
【００２８】
乾燥工程では、排水弁６０の弁６１を図３の（ａ）のｄ側にして洗濯排水路４７側が閉で結露排水路４８側が開として、圧縮機３５、送風手段４３及び回転ドラム２８が運転される。送風手段４３の運転によって、乾燥用空気が洗濯槽２６とダクト４４、フレキシブルホース４１、風路４０、フレキシブルホース４２の内部を循環する。衣類３１は、あらかじめ設定された回転数で連続又は間欠的に行われる回転ドラム２８の回転によって撹拌される。
【００２９】
圧縮機３５の運転によって、管路３９内を冷媒が循環して、放熱器３６で高温高圧の冷媒の熱を放熱して循環する乾燥用空気を加熱する。加熱された乾燥用空気は図２の矢印Ｃのように、洗濯槽２６内に送り込まれ、回転ドラム２８底面部の開口部４６を通過して衣類３１に当たり、衣類３１から水分を奪って、多湿の空気となって回転ドラム２８の側壁の孔４５を通過して、洗濯槽２６の開口部５６を通過してダクト４４へと送られる。
【００３０】
ダクト４４を通過した乾燥用空気は、矢印Ｂに示すように、フレキシブルホース４１を通過して風路４０に設けた除湿手段としての吸熱器３８で、冷却除湿される。除湿された乾燥用空気は、再び送風手段４３によって放熱器３６に送られて加熱される。吸熱器３８で発生した結露水は、結露非水路４８と排水弁６０を通過して排水管４９から機外に排出される。
【００３１】
なお、本実施例で示す放熱器３６や吸熱器３８の熱交換器は、プレートフィン付きチューブ型熱交換器を示しているが、特にその形態を限定するものではない。
【００３２】
図４は、本発明の実施例１の他の排水弁５１の構成を示す断面図である。図４において、５２は水路を開閉する弁、５３は回転運動を往復運動に変換するカム、５４は弁５２を支持してカム５３の動きを弁５２に伝えるレバー、５５はカム５３を回転させるモータである。
【００３３】
図４の（ａ）は、洗濯排水路４７側が閉時に結露排水路４８側が開となる弁５２の位置を示す断面図であり、モータ５５によってカム５３が回転してａ点の位置にレバー５４の支点が移動した状態である。
【００３４】
図４の（ｂ）は、洗濯排水路４７側が開時に結露排水路４８側が閉となる弁５２の位置を示す断面図であり、モータ５５によってカム５３が回転してｂ点の位置にレバー５４の支点が移動した状態である。洗濯排水路４７側が開の時には結露排水路４８側が閉となることによって、洗濯排水路４７から結露排水路４８への逆流を防止する逆流防止手段を構成する。
【００３５】
図５は本発明の実施例１のヒートポンプ装置の熱源に代えて、ヒータを熱源にする洗濯乾燥機を背面から見た斜視図である。図５において、５７は乾燥用空気を加熱するヒータ、５８は衣類３１から水分を奪って多湿となった乾燥用空気を、より低い機外の空気で冷却除湿するための熱交換器である。熱交換器５８は直交プレートフィン型熱交換器であり、乾燥用空気に直交するように機外空気の空気が空冷用送風手段５９によって送風される。矢印Ｅは空冷用送風手段５９によって送風される冷却用の機外空気の流れを示す。
【００３６】
上記構成によれば、衣類通過後の乾燥用空気を空気で冷却除湿するものであり、熱交換器５８で発生した結露水は、結露排水路４８と排水弁５１を通過して排水管４９から機外に排出される。
【００３７】
なお、熱交換器５８はプレーフィン付きチューブ型熱交換器でも同様であり、特に熱交換器の形態を限定するものでもない。
【００３８】
（実施例２）
図６は本発明の実施例２の排水弁近辺の排水処理手段の構成を示す断面図である。なお、前記実施例と同じ構成のものは同一符号を付して詳細な説明は省略する。
【００３９】
結露排水路４８の経路径は排水管４９の管径よりも小さく、結露排水路４８の接続口６３を排水管４９の側面部に設けたもので、結露水６４が排水管４９の内壁面に沿って流れるため、排水路内に設けられた排水弁５１の部材のレバー５４等が滴下する結露水６４に当たって濡れることを防ぐことができる。
【００４０】
（実施例３）
図７は本発明の実施例３の排水弁近辺の排水処理手段の構成を示す断面図である。なお、前記実施例と同じ構成のものは同一符号を付して詳細な説明は省略する。
【００４１】
図７において、結露排水路４８の経路径は排水管４９の管径よりも小さく、結露排水路４８の接続口６５を排水管４９の略底面部に設けるとともに、結露排水路４８において前記接続口６５の手前にＵ字トラップ６６を設けたもので、結露水６４が排水管４９の内壁の略底面に沿って流れて排水路内に設けられた排水弁５１の部材レバー５４等が滴下する結露水６４に当たって濡れることを防ぐことができるとともに、Ｕ字トラップ６６に溜まった結露水６４によって結露排水路４８を通じて空気が出入りすることを防ぐものである。
【００４２】
（実施例４）
図３の（ａ）もしくは図４の（ａ）と（ｂ）に示す排水弁６０もしくは排水弁５１に対して、本発明の実施例４の制御手段による制御を図８のフローチャートで示す。なお、前記実施例と同じ構成のものは同一符号を付して詳細な説明は省略する。
【００４３】
洗濯水の排水中は、ステップＳＴ１でＮｏ、ステップＳＴ２でＹｅｓと判断し、ステップＳＴ５で排水弁６０のモータ６２もしくは排水弁５１のモータ５５を制御して、弁６１もしくは弁５２によって洗濯排水路４７側が開で結露排水路４８側を閉とする。洗濯水を溜めている間は、ステップＳＴ１でＮｏ、ステップＳＴ２でＮｏと判断し、また乾燥中は、ステップＳＴ１でＹｅｓ、ステップＳＴ３でＮｏと判断し、ステップＳＴ４で洗濯排水路４７側が閉で結露排水路４８側が開とする。さらに、乾燥中の所定期間は、ステップＳＴ１でＹｅｓ、ステップＳＴ３でＹｅｓと判断し、ステップＳＴ５で洗濯排水路４７側が開で結露排水路４８側が閉とする制御を行うものである。
【００４４】
乾燥中に結露水を排出するには、結露排水路４８側が開で洗濯排水路４７側が閉とするが、洗濯槽２６内の湿気放出による乾燥促進や、乾燥用空気の温度低減と冷媒温度低減などの目的で、循環している乾燥用空気の一部を外気と入れ換えるために、制御手段（図示せず）によって、乾燥途中で結露排水路４８側が閉で洗濯排水路４７側が開とする期間を設ける制御を行い、大気中に開口された排水管４９を用いて、所定期間は洗濯排水路から空気の吐出もしくは吸入をして、その他の期間は結露排水路４８からの結露水を排出するものである。
【００４５】
（実施例５）
図３の（ｂ）および図４の（ｃ）は、本発明の実施例５の制御手段による排水弁６０もしくは排水弁５１の動作を示す断面図であり、図９は本発明の実施例５の制御手段による制御を示すフローチャートである。なお、前記実施例と同じ構成のものは同一符号を付して詳細な説明は省略する。
【００４６】
図３の（ｂ）においては、図示されない制御手段の制御によって、モータ６２が回転して排水弁６０の弁６１が図のｆの位置に停止するもので、また、図４の（ｃ）においては、図示されていない制御手段の制御によって、モータ５５が回転してカム５３の支点がｃ点に移動して、排水弁５１の弁５２が図示の位置で停止して、洗濯排水路４７が開で結露排水路４８も開の状態になる。
【００４７】
制御手段は図９のフローチャートの制御を行う。洗濯水の排水中は、ステップＳＴ１１でＮｏ、ステップＳＴ１２でＹｅｓと判断し、ステップＳＴ１５で排水弁６０のモータ６２もしくは排水弁５１のモータ５５を制御して、弁６１もしくは弁５２によって洗濯排水路４７側が開で結露排水路４８側が閉とする。洗濯水を溜めている間は、ステップＳＴ１１でＮｏ、ステップＳＴ１２でＮｏと判断し、また乾燥中は、ステップＳＴ１１でＹｅｓ、ステップＳＴ１３でＮｏと判断し、ステップＳＴ１４で洗濯排水路４７側が閉で結露排水路４８側が開とする。
【００４８】
さらに、乾燥中の所定期間は、ステップＳＴ１１でＹｅｓ、ステップＳＴ１３でＹｅｓと判断し、ステップＳＴ１６で洗濯排水路４７側が開で結露排水路４８側も開とする制御を行うものである。乾燥中に結露水を排出するには結露排水路４８側が開で洗濯排水路４７側が閉とするが、洗濯槽２６内の湿気放出による乾燥促進や、乾燥用空気の温度低減と冷媒温度低減などの目的で、循環している乾燥用空気の一部を外気と入れ換えるために、制御手段によって、乾燥途中で結露排水路４８側が開で洗濯排水路４７側も開とする期間を設ける制御を行い、大気中に開口され排水管４９を用いて、所定期間は洗濯排水路４７から空気の吐出もしくは吸入するとともに、結露排水路４８から結露水を排出するものである。
【００４９】
（実施例６）
図１０は本発明の実施例６の洗濯乾燥機の側断面図である。なお、前記実施例と同じ構成のものは同一符号を付して詳細な説明は省略する。
【００５０】
図１０は、除湿手段である吸熱器３８が構成上上方に配設できない場合を示しており、排水弁６０の設置位置よりも低い位置で結露水が溜まって、直接排水弁６０に結露水を排水できない。本発明の排水処理手段は、結露水を溜める排水タンク６７と、排水タンク６７内の水をくみ上げる排水ポンプ６８とを具備し、前記排水ポンプ６８の吸水口６９が前記排水タンク６７の略底面部に位置して、排水ポンプ６８の吐出口７０を結露排水路４８に接続している。強制的に排水ポンプ６８で結露水を汲み上げることによって、上記排水弁６０の位置で排水管４９と接続することができ、洗濯排水路４７と結露排水路４８を一つの排水管４９につないで機外に排出することができる。
【００５１】
（実施例７）
図１１は本発明の実施例７の洗濯乾燥機の制御手段のフローチャートである。なお、前記実施例と同じ構成のものは同一符号を付して詳細な説明は省略する。
【００５２】
乾燥中の結露水の発生量よりも排水ポンプ６８の汲み上げ量が少ないため、その差によって、乾燥中は排水タンク６７に溜まった水量は増加する。排水タンク６７の容量は溜まる水量よりも多く、乾燥終了後も排水ポンプ６８を作動して排水タンク６７内の残水を汲み上げる。
【００５３】
図１１のフローチャートで、制御手段は、洗濯水の排水中は、ステップＳＴ２１でＮｏ、ステップＳＴ２２でＮｏ、ステップＳＴ２３でＹｅｓと判断し、ステップＳＴ２５で排水弁６０のモータ６２もしくは排水弁５１のモータ５５を制御して、弁６１もしくは弁５２によって洗濯排水路４７側が開で結露排水路４８側が閉とする。洗濯水を溜めている間は、ステップＳＴ２１でＮｏ、ステップＳＴ２２でＮｏ、ステップＳＴ２３でＮｏと判断し、ステップＳＴ２４で洗濯排水路４７側が閉で結露排水路４８側が開とする。
【００５４】
乾燥中は、ステップＳＴ２１でＹｅｓと判断してステップＳＴ２６で排水ポンプ６８を作動させる。排水ポンプ６８が作動中はステップＳＴ２８の判断のいかんに関わらず結露排水路４８側は開となっている。乾燥終了後は、ステップＳＴ２１でＮｏ、ステップＳＴ２２でＹｅｓと判断し、排水タンク６７の水がほぼなくなるまで排水ポンプ６８を所定の間動作させる。この間は、ステップＳＴ２９もしくはＳＴ２４で結露排水路４８側は開とする。
【００５５】
上記のような構成と制御によって、汲み上げ量の少ない排水ポンプ６８でも衣類から回収される所定量の水を処理することが可能となるものである。
【００５６】
【発明の効果】
以上のように本発明の請求項１〜２に記載の発明によれば、排水弁によって洗濯排水が結露排水路へ逆流するのを防止する逆流防止手段を構成し、１つの排水管で機外に排水できる簡便な排水処理手段を実現することができる。
【図面の簡単な説明】
【図１】本発明の実施例１の洗濯乾燥機の一部切欠斜視図
【図２】同洗濯乾燥機の側断面図
【図３】（ａ）同洗濯乾燥機の排水弁の構成と結露排水路の開開動作を示す断面図
（ｂ）本発明の実施例５の洗濯乾燥機の排水弁の洗濯排水路と結露排水路の開動作を示す断面図
【図４】（ａ）本発明の実施例１の洗濯乾燥機の他の排水弁の構成と結露排水路の開動作を示す断面図
（ｂ）同洗濯乾燥機の他の排水弁の結露排水路の閉動作を示す断面図
（ｃ）本発明の実施例５の他の排水弁の洗濯排水路と結露排水路の開動作を示す断面図
【図５】本発明の実施例１の洗濯乾燥機の熱源にヒータを用いた一部切欠斜視図
【図６】本発明の実施例２の洗濯乾燥機の排水処理手段の断面図
【図７】本発明の実施例３の洗濯乾燥機の排水処理手段の断面図
【図８】本発明の実施例４の洗濯乾燥機の制御手段のフローチャート
【図９】本発明の実施例５の洗濯乾燥機の制御手段のフローチャート
【図１０】本発明の実施例６の洗濯乾燥機の側断面図
【図１１】本発明の実施例７の洗濯乾燥機の制御手段のフローチャート
【図１２】従来の洗濯乾燥機の側断面図
【符号の説明】
３８吸熱器
４７洗濯排水路
４８結露排水路
４９排水管
５１、６０排水弁
５２、６１弁
５３カム
５４レバー
５５、６２モータ
５８熱交換器
５９空冷用送風手段
６３、６５接続口
６４結露水
６６Ｕ字トラップ
６７排水タンク
６８排水ポンプ
６９吸水口
７０吐出口[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a washing and drying machine that performs washing and drying used in a general household in the same tank.
[0002]
[Prior art]
Conventionally, as a device for washing and drying clothes, there are a device using a heater as a heat source and a device using a heat pump device as a heat source (see, for example, Patent Document 1). Hereinafter, a conventional example will be described with reference to the accompanying drawings.
[0003]
FIG. 12 is a side sectional view of the washing / drying machine described in Patent Document 1. In FIG. 12, the washing / drying machine 1 has a casing 2, a door 12 for attaching and removing clothes 6 is attached to the center of the casing 2, and a rotating drum 3 is accommodated therein. A predetermined portion of the rotating drum 3 is provided with a beater 5 for lifting and dropping the clothes 6 along with the rotation of the rotating drum 3, and a punching hole 4 through which washing water 7 and circulating air 9 for drying enter and exit. . The shaft 11 of the rotating drum 3 receives power for rotation from a driving motor (not shown).
[0004]
Further, the rear surface of the rotating drum 3 in the casing 2 is partitioned by a partition wall 22 except for the air inlet 24 and the air outlet 23, and ducts 10 and 13 through which the circulating air 9 passes are formed. The lower part of the front surface of the partition wall 22 constitutes a washing tub 14, and the lower part of the rotating drum 3 faces the portion of the washing tub 14.
[0005]
Each of the air ducts 10 and 13 incorporates a compressor 19, a condenser (condenser) 18, a fan 17, an expansion valve 20, an evaporator (evaporator) 15 and the like, and a so-called heat pump cycle is formed. Further, a part of the capacitor 18 is extended to the outer back surface of the casing to form a radiator 16. 21 is a drain drain pipe, and 8 is a washing drain pipe.
[0006]
Next, each process and operation will be described. In the washing and rinsing process, the door 12 is opened, the garment 6 and an appropriate amount of detergent are added, the door 12 is closed, and the following processes are executed.
[0007]
A prescribed amount of water 7 is supplied from a water supply valve (not shown) to the washing tub 14 up to the position of the water level A. The rotating drum 3 rotates continuously or intermittently at the programmed number of rotations to perform cleaning. During this time, the garment 6 is lifted and dropped by the beater 5. After washing is completed, the water is drained from the washing drain pipe 8 of the washing tub 14 to the outside of the machine. Subsequently, the rinsing process is performed in the same process. Rinsing water is also drained out of the machine from the washing drain pipe 8 as washing drain.
[0008]
In the dehydration step, the rotating drum 3 rotates at a programmed number of rotations to dehydrate the moisture 7 in the clothing 6. The dewatered water is drained out of the machine from the washing drain pipe 8 as washing drain.
[0009]
In the drying process, the compressor 19, the fan 17 and the rotating drum 3 are operated, and the circulating air 9 circulates inside the ducts 10 and 13 and the rotating drum 3. The water vapor evaporated from the clothing 6 is brought into contact with the evaporator 15 through the air outlet 23 and the duct 10 together with the circulating air 9, and is cooled to be condensed and condensed (condensed water). The dehumidified circulating air 9 is sent to the condenser 18 by the fan 17, heated there to become hot air, flows into the rotary drum 3 through the duct 13 and the air inlet 24, and evaporates moisture from the clothing 6 again. . The dehumidified condensed water is drained out of the machine through the drain drain pipe 21. During this time, the rotating drum 3 rotates continuously or intermittently at a preset number of rotations as in the washing process.
[0010]
[Patent Document 1]
JP-A-1-32893 (FIG. 1)
[0011]
[Problems to be solved by the invention]
However, in the conventional configuration, the drain drain pipe 21 and the washing drain pipe 8 separately lead the drain to the outside of the machine. In the washing machine, there is one drainage hose corresponding to the drainage pipe, and when a washing / drying machine is installed at the place where the washing machine is installed, the drainage treatment can be performed with one drainage hose as in the past. It is desirable in terms of installation work, installation members such as a waterproof floor, and piping equipment under the floor.
[0012]
If the drain drain pipe 21 and the laundry drain pipe 8 are directly connected in the machine, the level of water stored in the washing tub 14 during washing is high, and the drain drain pipe 21 from the laundry drain pipe 8 due to water pressure during washing drainage. When washing water and rinsing water flow into the water and the installation position of each means such as the evaporator 15, the fan 17 and the condenser 18 for performing dehumidification and heating is lower than the stored water level of the washing water as well as the piping. However, there is a problem that there is a risk of getting wet with washing water in which detergent or bleach is dissolved.
[0013]
In order to prevent this, in addition to the drainage valve provided in the washing drainage pipe 8, a backflow by a check valve for preventing the backflow to the drain drainage pipe 21 or a drainage valve for the drain drainage pipe 21 is provided. There has been a problem that a separate prevention means is required.
[0014]
The present invention solves the above-described conventional problems, and aims to realize a wastewater treatment means that can prevent backflow to the drain drainage pipe 21 and drain the water outside the machine with a single drainage pipe. is there.
[0015]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a washing drainage channel for flowing drainage at the time of washing, a condensation drainage channel for passing condensed water at the time of drying, and drainage provided at a junction of the washing drainage channel and the condensation drainage channel. A valve, a drainage tank that stores condensed water at a position lower than the drainage valve, a drainage pump that is provided in the condensation drainage channel and pumps up the condensed water in the drainage tank, and a control means that controls the drainage valve. The drainage pump has a suction port connected to the drainage tank, and a discharge port of the drainage pump is connected to a condensation drainage channel leading to the drainage valve. Control the drain valve so that the condensation drainage channel side is closed when open, and control the drain valve so that the condensation drainage channel side is open when the drainage pump is operating during drying It is a thing.
[0016]
This prevents backflow from the washing drainage channel to the condensation drainage channel, and using a single drain valve that stores and drains water during washing, the drainage drainage channel side is open when the condensation drainage channel side is closed during drainage of washing water, When the condensation drainage channel side is opened during drying, it can be drained outside the machine with a single drainage pipe.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
The invention according to claim 1 is a dehumidifying means for washing and drying clothes placed in the same tank, cooling the drying air at the time of drying and recovering moisture as condensed water, and draining at the time of washing. A washing drainage channel for flowing, a condensation drainage channel for passing condensed water when drying, a drainage valve provided at a junction of the washing drainage channel and the condensation drainage channel, and a drainage tank for storing condensed water at a position lower than the drainage valve And a drainage pump that is provided in the condensation drainage channel and pumps up the condensed water in the drainage tank, and a control means that controls the drainage valve, and connects a water inlet of the drainage pump to the drainage tank, The discharge port of the drainage pump is connected to a condensation drainage channel leading to the drainage valve, and the control means controls the drainage valve so that the condensation drainage channel side is closed when the laundry drainage channel is open during drainage of washing water. Control and drain the drainage pump during drying The drain valve is controlled so that the dew condensate side is open during operation, and when the condensate drain side is closed when washing water is drained, the laundry drain side is opened. It serves as a backflow prevention means for preventing backflow from the drainage channel to the condensation drainage channel. By constructing a backflow prevention means with a single drainage valve, it is possible to drain outside the machine with a single drainage pipe even when the condensation drainage channel side is open during drying. In addition to the drainage valve that stores and drains washing water There is no need to provide a separate backflow prevention means.
[0018]
Also, due to the configuration of the dehumidifying means, when a dew condensation water drainage tank is installed at a position lower than the position where the drainage valve is installed, and the dew condensation water accumulates in the drainage tank, the dew condensation pump is forcibly pumped up. Accordingly, the drainage pipe can be connected at the position of the drainage valve, and the washing drainage channel and the condensation drainage channel can be connected to one drainage pipe and discharged outside the apparatus.
[0019]
The invention according to claim 2 is the invention according to claim 1,
When the amount of pumped water from the drainage pump is less than the amount of condensed water generated during drying, and the amount of water collected in the drainage tank increases due to the difference between the amount of condensed water generated during drying and the amount pumped by the drainage pump , the drainage with the tank has a greater capacity than the amount of water accumulated during the drying, the control means, after completion of the drying also it is obtained by so operating the drainage pump pumps the remaining water in the drainage tank, pumping a small amount of wastewater A pump can treat a predetermined amount of water collected from clothing.
[0020]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0021]
(Example 1)
1 is a perspective view of a washing and drying machine according to a first embodiment of the present invention as viewed from the back, and FIG. 2 is a side sectional view. In FIG. 1, there is a washing tub 26 in a washing and drying machine main body 25 of the present invention, and a motor 27 is attached. The washing tub 26 is attached to the main body 25 while being supported by suspensions 29 on both sides and an upper suspension 30.
[0022]
35 is a compressor, 36 is a radiator that dissipates the heat of the high-temperature and high-pressure refrigerant after compression, 37 is an expansion valve for reducing the pressure of the high-pressure refrigerant, or throttling means comprising a capillary tube, and 38 is depressurized. The low pressure refrigerant is a heat absorber that draws heat from the surroundings, and is connected to the compressor 35, the radiator 36, the throttle means 37, and the heat absorber 38 in this order so that the refrigerant circulates again through the compressor 35. The heat pump device connected at 39 is provided.
[0023]
Reference numeral 40 denotes an air passage through which drying air flows, and is configured to connect the heat absorber 38 as a dehumidifying means for cooling the drying air and the radiator 36 as a heating means for heating the drying air. Yes. The washing tub 26 and the air passage 40 are connected by flexible hoses 41 and 42. The air passage 40 is provided with air blowing means 43. Reference numeral 44 denotes a duct provided on the outer wall of the washing tub 26. An arrow B indicates the flow of drying air in the duct 44 and the air passage 40.
[0024]
In FIG. 2, reference numeral 28 denotes a rotating drum that is directly connected to the shaft of the motor 27 and attached in the washing tub 26. A door 32 for loading clothes 31 is provided at a position corresponding to the front opening of the washing tub 26 and the rotary drum 28. A gap between the main body 25 and the washing tub 26 is substantially sealed by a bellows 33 and a door packing 34 so that air does not leak into the main body 25 or outside the machine. A hole 45 and an opening 46 through which washing water and drying air enter and exit are provided on the side wall and the bottom of the rotating drum 28. An opening 56 is provided in the inner wall of the washing tub 26 and connects the air passage between the washing tub 26 and the duct 44. An arrow C indicates the flow of drying air in the washing tub 26 and the rotary drum 28.
[0025]
Reference numeral 47 is a washing drainage channel for flowing wastewater during washing, and 48 is a condensation drainage channel for passing condensed water generated by the heat absorber 38 during drying. The washing drainage channel 47 and the condensation drainage channel 48 are connected to a single drainage pipe 49. . The tip 50 of the drain pipe 49 is open to the atmosphere outside the machine. There is one drain valve 60 at the junction of the washing drainage channel 47 and the condensation drainage channel 48, and the drainage treatment means is constituted by the washing drainage channel 47, the condensation drainage channel 48, the drainage pipe 49 and the drainage valve 60.
[0026]
FIG. 3 is a cross-sectional view showing the configuration of the waste water treatment means in the vicinity of the drain valve 60. In FIG. 3, 61 is a valve for opening and closing the water channel, and 62 is a motor for rotating the valve 61. 3A, when the valve 61 is closed to the d side by the motor 62, the washing drainage channel 47 side is closed and the condensation drainage channel 48 side is opened, and when the valve 62 is rotated by the motor 62 and moved to the e side, The laundry drainage channel 47 side is open and the condensation drainage channel 48 side is closed. When the washing drainage channel 47 side is open, the condensation drainage channel 48 side is closed, thereby constituting a backflow prevention means for preventing a backflow from the washing drainage channel 47 to the condensation drainage channel 48.
[0027]
The operation and action of the washing / drying machine configured as described above will be described below. In the washing process from washing, rinsing and dewatering, when water is stored, the state of the valve 61 of the drain valve 60 is the d side in FIG. 3A, the washing drain channel 47 side is closed, and the condensation drain channel 48 side is closed. Open. Water is supplied to the washing tub 26 from a water supply valve (not shown), and is stored up to the position of the water level D in FIG. The rotating drum 28 rotates continuously or intermittently at a programmed number of rotations, and cleaning and rinsing are performed. During this time, the clothes 31 are lifted and dropped by the rotation of the rotary drum 28. When draining, the valve 61 of the drain valve 60 is set to the e side in FIG. The laundry drainage channel 47 side is open and the condensation drainage channel 48 side is closed. The water in the washing tub 26 passes through the washing drain channel 47 and the drain valve 60 and is drained out of the machine from the drain pipe 49.
[0028]
In the drying process, the valve 61 of the drainage valve 60 is set to the d side in FIG. 3A, the washing drainage channel 47 side is closed, and the condensation drainage channel 48 side is opened, and the compressor 35, the blowing means 43, and the rotary drum 28 are operated. Is done. By the operation of the blowing means 43, the drying air circulates inside the washing tub 26 and the duct 44, the flexible hose 41, the air path 40, and the flexible hose 42. The clothing 31 is agitated by the rotation of the rotating drum 28 continuously or intermittently performed at a preset number of rotations.
[0029]
By the operation of the compressor 35, the refrigerant circulates in the pipe 39, and the heat of the high-temperature and high-pressure refrigerant is radiated by the radiator 36 to heat the circulating drying air. The heated drying air is sent into the washing tub 26 as shown by an arrow C in FIG. 2, passes through the opening 46 in the bottom of the rotating drum 28 and hits the clothing 31, deprives the clothing 31 of moisture, and is humid. The air passes through the hole 45 on the side wall of the rotary drum 28, passes through the opening 56 of the washing tub 26, and is sent to the duct 44.
[0030]
The drying air that has passed through the duct 44 passes through the flexible hose 41 and is dehumidified by a heat absorber 38 as a dehumidifying means provided in the air passage 40 as indicated by an arrow B. The dehumidified drying air is sent again to the radiator 36 by the blowing means 43 and heated. Condensed water generated in the heat absorber 38 passes through the dew condensation non-water channel 48 and the drain valve 60 and is discharged out of the machine from the drain pipe 49.
[0031]
In addition, although the heat exchanger of the heat radiator 36 and the heat absorber 38 shown in a present Example has shown the tube type heat exchanger with a plate fin, the form is not specifically limited.
[0032]
FIG. 4 is a cross-sectional view showing a configuration of another drain valve 51 of Embodiment 1 of the present invention. In FIG. 4, 52 is a valve that opens and closes a water channel, 53 is a cam that converts rotational motion into reciprocating motion, 54 is a lever that supports the valve 52 and transmits the motion of the cam 53 to the valve 52, and 55 rotates the cam 53. It is a motor.
[0033]
4A is a cross-sectional view showing the position of the valve 52 where the condensation drainage channel 48 side is opened when the washing drainage channel 47 side is closed, and the cam 53 is rotated by the motor 55 so that the lever 54 is positioned at the point a. The fulcrum of has moved.
[0034]
FIG. 4B is a cross-sectional view showing the position of the valve 52 where the condensation drainage channel 48 side is closed when the laundry drainage channel 47 side is open, and the cam 53 is rotated by the motor 55 so that the lever 54 is positioned at the point b. The fulcrum of has moved. When the washing drainage channel 47 side is open, the condensation drainage channel 48 side is closed, thereby constituting a backflow prevention means for preventing a backflow from the washing drainage channel 47 to the condensation drainage channel 48.
[0035]
FIG. 5: is the perspective view which looked at the washing / drying machine which replaced with the heat source of the heat pump apparatus of Example 1 of this invention and made a heater a heat source from the back surface. In FIG. 5, 57 is a heater that heats the drying air, and 58 is a heat exchanger that cools and dehumidifies the drying air that has become wet due to moisture from the garment 31 with lower outside air. The heat exchanger 58 is an orthogonal plate fin type heat exchanger, and the air of the outside air is blown by the air-cooling blowing means 59 so as to be orthogonal to the drying air. An arrow E indicates the flow of the cooling external air blown by the air cooling blowing means 59.
[0036]
According to the above configuration, the drying air after passing through the clothing is cooled and dehumidified with air, and the condensed water generated in the heat exchanger 58 passes through the condensed drainage channel 48 and the drainage valve 51 from the drainage pipe 49. It is discharged outside the machine.
[0037]
The heat exchanger 58 is the same as a tube-type heat exchanger with a prefin, and the form of the heat exchanger is not particularly limited.
[0038]
(Example 2)
FIG. 6 is a cross-sectional view showing the configuration of the waste water treatment means in the vicinity of the drain valve according to the second embodiment of the present invention. In addition, the same structure as the said Example attaches | subjects the same code | symbol, and abbreviate | omits detailed description.
[0039]
The diameter of the condensation drainage channel 48 is smaller than the diameter of the drainage pipe 49, and the connection port 63 of the condensation drainage channel 48 is provided on the side surface of the drainage pipe 49. Therefore, the lever 54 and the like of the drain valve 51 provided in the drainage channel can be prevented from getting wet by hitting the dew condensation water 64 dripping.
[0040]
(Example 3)
FIG. 7 is a cross-sectional view showing the configuration of the waste water treatment means in the vicinity of the drain valve according to the third embodiment of the present invention. In addition, the same structure as the said Example attaches | subjects the same code | symbol, and abbreviate | omits detailed description.
[0041]
In FIG. 7, the path diameter of the condensation drainage channel 48 is smaller than the pipe diameter of the drainage pipe 49, and the connection port 65 of the condensation drainage channel 48 is provided on the substantially bottom surface of the drainage pipe 49. A U-shaped trap 66 is provided in front of 65, and the condensed water 64 flows along the substantially bottom surface of the inner wall of the drain pipe 49 and the member lever 54 of the drain valve 51 provided in the drain channel drops. In addition to preventing the water 64 from getting wet, the condensed water 64 accumulated in the U-shaped trap 66 prevents air from entering and exiting through the condensation drainage channel 48.
[0042]
(Example 4)
FIG. 8 is a flowchart of the control by the control means of the fourth embodiment of the present invention for the drain valve 60 or the drain valve 51 shown in FIG. 3 (a) or FIG. 4 (a) and (b). In addition, the same structure as the said Example attaches | subjects the same code | symbol, and abbreviate | omits detailed description.
[0043]
During washing water drainage, No is determined in step ST1, Yes is determined in step ST2, and the motor 62 of the drain valve 60 or the motor 55 of the drain valve 51 is controlled in step ST5. The 47 side is open and the condensation drainage channel 48 side is closed. While storing washing water, No is determined in Step ST1, No is determined in Step ST2, and during drying, Yes is determined in Step ST1, No is determined in Step ST3, and the washing drainage channel 47 side is closed in Step ST4. The condensation drainage channel 48 side is opened. Further, the predetermined period during drying is determined to be Yes in step ST1, Yes in step ST3, and in step ST5, the laundry drainage channel 47 side is opened and the condensation drainage channel 48 side is closed.
[0044]
To drain condensed water during drying, the condensation drainage channel 48 side is open and the laundry drainage channel 47 side is closed. However, drying is accelerated by releasing moisture in the washing tub 26, drying air temperature is reduced, and refrigerant temperature is reduced. In order to replace a part of the circulating drying air with the outside air for the purpose of, for example, a period in which the condensation drainage channel 48 side is closed and the laundry drainage channel 47 side is opened during the drying by a control means (not shown) Using a drain pipe 49 opened to the atmosphere, air is discharged or sucked from the washing drainage channel for a predetermined period, and condensed water from the condensation drainage channel 48 is discharged during the other period. Is.
[0045]
(Example 5)
FIGS. 3B and 4C are cross-sectional views showing the operation of the drain valve 60 or the drain valve 51 by the control means of the fifth embodiment of the present invention, and FIG. 9 is a fifth embodiment of the present invention. It is a flowchart which shows the control by the control means. In addition, the same structure as the said Example attaches | subjects the same code | symbol, and abbreviate | omits detailed description.
[0046]
In FIG. 3 (b), the motor 62 is rotated by the control of the control means (not shown), and the valve 61 of the drain valve 60 is stopped at the position f in FIG. 3, and in FIG. 4 (c) Is controlled by a control means (not shown), the motor 55 rotates and the fulcrum of the cam 53 moves to the point c, the valve 52 of the drain valve 51 stops at the position shown in the figure, and the washing drain 47 is opened. The condensation drainage channel 48 is also opened when opened.
[0047]
The control means controls the flowchart of FIG. During washing water drainage, it is determined No in step ST11, Yes in step ST12, the motor 62 of the drain valve 60 or the motor 55 of the drain valve 51 is controlled in step ST15, and the washing drainage channel is controlled by the valve 61 or valve 52. The 47 side is open and the condensation drainage channel 48 side is closed. While the washing water is being accumulated, No is determined in Step ST11, No is determined in Step ST12, and during drying, Yes is determined in Step ST11, No is determined in Step ST13, and the washing drainage channel 47 side is closed in Step ST14. The condensation drainage channel 48 side is opened.
[0048]
Further, the predetermined period during drying is determined to be Yes in step ST11, Yes in step ST13, and in step ST16, the laundry drainage channel 47 side is opened and the condensation drainage channel 48 side is also opened. In order to discharge condensed water during drying, the condensation drainage channel 48 side is open and the laundry drainage channel 47 side is closed. However, drying is accelerated by releasing moisture in the washing tub 26, drying air temperature is reduced, refrigerant temperature is reduced, etc. Therefore, in order to replace a part of the circulating drying air with the outside air, the control means performs control to provide a period during which the condensation drainage channel 48 side is open and the laundry drainage channel 47 side is also open during the drying. In addition, air is discharged or sucked from the washing drainage channel 47 and the condensed water is discharged from the condensation drainage channel 48 for a predetermined period using the drainage pipe 49 opened to the atmosphere.
[0049]
(Example 6)
FIG. 10 is a side sectional view of the washing / drying machine of Example 6 of the present invention. In addition, the same structure as the said Example attaches | subjects the same code | symbol, and abbreviate | omits detailed description.
[0050]
FIG. 10 shows a case where the heat absorber 38 that is a dehumidifying means cannot be disposed upward due to the configuration. Condensed water accumulates at a position lower than the installation position of the drain valve 60, and the condensed water is directly applied to the drain valve 60. Cannot drain. The wastewater treatment means of the present invention comprises a drainage tank 67 that stores condensed water and a drainage pump 68 that pumps up the water in the drainage tank 67, and the water inlet 69 of the drainage pump 68 is a substantially bottom portion of the drainage tank 67. The discharge port 70 of the drainage pump 68 is connected to the condensation drainage channel 48. By forcibly pumping the dew condensation water with the drainage pump 68, it is possible to connect the drainage pipe 49 at the position of the drainage valve 60, and the washing drainage path 47 and the condensation drainage path 48 are connected to one drainage pipe 49. Can be discharged outside.
[0051]
(Example 7)
FIG. 11 is a flowchart of the control means of the washing / drying machine of Embodiment 7 of the present invention. In addition, the same structure as the said Example attaches | subjects the same code | symbol, and abbreviate | omits detailed description.
[0052]
Since the pumping amount of the drainage pump 68 is smaller than the amount of condensed water generated during drying, the amount of water accumulated in the drainage tank 67 increases during the drying due to the difference. The capacity of the drain tank 67 is larger than the amount of accumulated water, and the drain pump 68 is operated even after the drying is completed to pump up the remaining water in the drain tank 67.
[0053]
In the flowchart of FIG. 11, during the drainage of the washing water, the control means determines No in step ST21, No in step ST22, Yes in step ST23, and motor 62 of the drain valve 60 or motor of the drain valve 51 in step ST25. 55, the washing drainage channel 47 side is opened and the condensation drainage channel 48 side is closed by the valve 61 or the valve 52. While the washing water is being accumulated, it is determined No in step ST21, No in step ST22, No in step ST23, and in step ST24, the washing drainage channel 47 side is closed and the condensation drainage channel 48 side is opened.
[0054]
During drying, Yes is determined in step ST21, and the drainage pump 68 is operated in step ST26. While the drainage pump 68 is in operation, the dew condensation drainage channel 48 side is open regardless of the determination in step ST28. After completion of the drying, it is determined No in step ST21, Yes in step ST22, and the drainage pump 68 is operated for a predetermined period until the drainage tank 67 runs out of water. During this time, the condensation drainage channel 48 side is opened in step ST29 or ST24.
[0055]
With the configuration and control as described above, it is possible to treat a predetermined amount of water collected from clothing even with the drainage pump 68 with a small pumping amount.
[0056]
【The invention's effect】
As described above, according to the first and second aspects of the present invention, the drainage valve constitutes the backflow prevention means for preventing the washing drainage from flowing back to the condensation drainage channel, and the drainage pipe is connected to the outside of the machine. It is possible to realize a simple waste water treatment means capable of draining water.
[Brief description of the drawings]
FIG. 1 is a partially cutaway perspective view of a washing / drying machine according to a first embodiment of the present invention. FIG. 2 is a side sectional view of the washing / drying machine. Cross-sectional view showing the opening operation of the drainage channel (b) Cross-sectional view showing the opening operation of the washing drainage channel and the condensation drainage channel of the drainage valve of the washing and drying machine of Example 5 of the present invention. Sectional drawing which shows the structure of another drainage valve of the washing / drying machine of Example 1 and the opening operation of the condensation drainage channel (b) Sectional diagram showing closing operation of the condensation drainage channel of the other drainage valve of the washing / drying machine c) Sectional view showing opening operation of washing drainage channel and condensation drainage channel of another drainage valve of Example 5 of the present invention. FIG. 5 shows a heat source of the washing dryer according to Example 1 of the present invention. FIG. 6 is a sectional view of the waste water treatment means of the washer / dryer according to the second embodiment of the present invention. FIG. 7 is a cross section of the waste water treatment means of the washer / dryer according to the third embodiment of the present invention. FIG. 8 is a flowchart of the control means of the washer / dryer according to the fourth embodiment of the present invention. FIG. 9 is a flowchart of the control means of the washer / dryer according to the fifth embodiment of the present invention. FIG. 11 is a side sectional view of a washing and drying machine. FIG. 11 is a flowchart of a control unit of the washing and drying machine according to a seventh embodiment of the present invention.
38 Heat Absorber 47 Washing Drainage Channel 48 Condensation Drainage Channel 49 Drainage Pipe 51, 60 Drainage Valve 52, 61 Valve 53 Cam 54 Lever 55, 62 Motor 58 Heat Exchanger 59 Air Cooling Blower 63, 65 Connection Port 64 Condensation Water 66 U Trap 67 Drain tank 68 Drain pump 69 Water intake 70 Discharge port

Claims

同一槽内に入れた衣類に対して洗濯と乾燥を行い、乾燥時に乾燥用空気を冷却して湿気を結露水として回収する除湿手段と、洗濯時の排水を流す洗濯排水路と、乾燥時の結露水を流す結露排水路と、前記洗濯排水路と結露排水路の合流部に設けた排水弁と、前記排水弁よりも低い位置で結露水を溜める排水タンクと、前記結露排水路に設けられ前記排水タンク内の結露水を汲み上げる排水ポンプと、前記排水弁を制御する制御手段とを具備し、前記排水ポンプの吸水口を前記排水タンクに接続するとともに、前記排水ポンプの吐出口を前記排水弁に通じる結露排水路に接続し、前記制御手段は、洗濯水排水時に前記洗濯排水路が開のときに結露排水路側が閉となるように前記排水弁を制御し、乾燥時に前記排水ポンプを作動させているときは、結露排水路側が開となるように前記排水弁を制御するようにした洗濯乾燥機。 Washing and drying clothes placed in the same tank, dehumidifying means that cools the drying air and collects moisture as condensed water at the time of drying, a washing drainage channel for draining washing water, A condensation drainage channel for allowing condensed water to flow, a drainage valve provided at a junction of the washing drainage channel and the condensation drainage channel, a drainage tank for storing the condensed water at a position lower than the drainage valve, and the condensation drainage channel. A drainage pump for pumping condensed water in the drainage tank; and a control means for controlling the drainage valve. The drainage pump has a suction port connected to the drainage tank, and the drainage pump discharge port is connected to the drainage pump. Connected to a condensation drainage channel leading to a valve, the control means controls the drainage valve so that the condensation drainage channel side is closed when the washing drainage channel is open when washing water is drained, and the drainage pump is When operating Washing and drying machine condensation drainage path side is adapted to control the drain valve such that the open.

乾燥中の結露水の発生量よりも排水ポンプの汲み上げ量が少なく、乾燥中の結露水の発生量と前記排水ポンプの汲み上げ量との差によって排水タンクに溜まる水量が増加する場合において、前記排水タンクは乾燥中に溜まる水量よりも多い容量を有するとともに、制御手段は、乾燥終了後も排水ポンプを作動して前記排水タンク内の残水を汲み上げるようにした請求項１記載の洗濯乾燥機。When the amount of pumped water from the drainage pump is less than the amount of condensed water generated during drying, and the amount of water collected in the drainage tank increases due to the difference between the amount of condensed water generated during drying and the amount pumped by the drainage pump , the drainage with the tank has a greater capacity than the amount of water accumulated during the drying, the control means, after completion of the drying was also as to operate the drainage pump pumps the remaining water in the drainage tank according to claim 1 washing and drying machine according.