201111580 六、發明說明： C發明所屬^^技術領域：3 技術領域 本發明係有關於一種可快速且正確地感測洗滌液之起 泡程度之洗衣機。 t 先前 3 背景技術 洗滌作業中，洗滌液之起泡程度為重要參數。例如’ 當洗滌液之起泡程度高時，必須增加用以沖洗洗滌物之水 量。另一方面，當起泡程度小時，由節約水資源之觀點來 看，宜減少用以沖洗洗滌物之水量。 日本特開2009-28113號公報揭示一種洗衣機，係藉由 驅動洗滌槽，使洗滌液之泡導入設置於光感測器附近之導 水溝内，然後根據該泡到消失期間之光透過率的時間變 化，來判定起泡程度。 曰本特開2009-28113號公報所揭示之手法為了判定起 泡’必須專到導入至導水溝内之泡消失為止。因此’到判 定起泡程度為止需要較長的時間。因此’當清洗時間較短 時’會有無法判定起泡程度之問題。又，當洗滌中補給水 時，由於光透過率產生變化，因此會有無法正確地判定起 泡程度的問題。 導電度感測器包含突出於洗滌液中之一對電極。藉由 在電極間施加高頻電壓，感測洗滌液之電阻變化。因此， 接近於光感測器而配置之導電度感測器會擾亂在管路流動 201111580 之洗條液之液流，使光感測器之感測信號不安定。 c發明内容3 發明欲解決之課題 本發明之目的即在於提供一種可快速且正確地感測洗 滌液之起泡程度之洗衣機。 本發明之一觀點之洗衣機的特徵在於包含有：洗滌 槽，係具有供洗滌液流入之流入口、及供前述洗滌液排出 之排出口者；管路’係連接於前述流入口與前述排出口者； 流動裝置’係使前述洗滌液通過該管路而由前述排出口朝 前述流入口流動者；光感測器，係檢測通過前述管路内之 洗滌液之光量者；及控制部’係根據前述光感測器之檢測 信號’控制洗滌動作者，其中前述光感測器係用以檢測並 輸出前述流動裝置運轉期間之第1光量與前述流動裝置停 止期間之第2光量。 圖式簡單說明 第1圖係顯示本發明之一實施形態之滾筒式洗衣機之 概略構成圖。 第2(a)、（b)圖係顯示使用於第1圖所示之滾筒式洗衣機 之排水控制單元之蜜體者。 第3圖係第丨圖所示之滾筒式洗衣機之排水控制單元的 平面圖。 第4圖係第1圖所示之滾筒式洗衣機之排水控制單元的 201111580 第5圖係第1圖所示之滾筒式洗衣機之排水控制單元的 側面圖。 第6圖係由相反側觀察第5圖所示之排水控制單元的側 面圖。 第7圖係顯示使用於第3圖至第6圖所示之排水控制單 元之光感測器的安裝構造。 第8(a)〜(e)圖係顯示第7圖所示之光感測器。 第9(a)〜(f)圖係顯示第8圖所示之光感測器之托架之構 造。 第l〇(a)、（b)圖係顯示使用於第3圖至第6圖所示之排水 控制單元之電極感測器。 第11 (a)、（b)圖係顯示第1 〇圖所示之電極感測器之安装^ 構造。 第12圖係說明第11圖所示之電極感測器周圍之洗務液 的流動。 第13圖係說明由第7圖所示之光感測器到第丨丨圖所示 之電極感測器之流路中之洗滌液的流動。 第14圖係說明由第3圖至第6圖所示之排水控制單元之 電極感測器朝向循環泵之洗滌液的流動。 第15(a)、（b)圖係說明第3圖至第6圖所示之排水控制單 元之循環泵之作動時及排水閥之作動時之電極感測器周圍 之洗滌液的流動 第16(a)〜(c)圖係第3圖至第6圖所示之排水控制單元之 循環泵的概略圖。 201111580 第17(a)〜(c)圖係說明第1圖所示之滾筒式洗衣機之水 槽之流入口周圍的構造。 第18圖係說明第1圖所示之滚筒式洗衣機之控制電路 部的機能構成。 第19(a)、（b)圖係顯示循環泵在間歇動作期間由光感測 器發送之信號之圖表。 第2 0圖係例示記憶部具有之對光感測器之上限臨界値 及下限臨界値之資料構造者。 C實施方式3 用以實施發明之較佳型態 以下，參照圖式說明本發明之一實施形態。再者，以 下說明中所使用之用以表示「上」、「下」、「左」及「右」 等方向之用語係單純以說明之明瞭化為目的，並非用以限 定本發明者。又，以下說明所使用之「上游」及/或「下游」 的用語只要沒有特別之說明，則意味後述之由洗滌槽之水 槽之排出口朝向排水控制單元之洗滌液的液流中之「上游」 及/或「下游」。 第1圖係一實施形態之滾筒式洗衣機之概略構成圖。再 者，以下所說明之原理不限定於第1圖所示之滾筒式洗衣 機，亦可適用於其他洗衣機(例如，脈動泵方式之洗衣機或 攪拌式洗衣機等）。 滚筒式洗衣機1具有筐體2。筐體2之内部配設有洗滌槽 3。洗滌槽3包含:可自由搖動地支持於筐體2之内部之圓筒 2〇1ιΠ58〇 狀水槽3卜可自由旋轉地支持於水槽31内之_狀旋轉滚 靖32、及使旋轉滾筒32旋轉之馬達33。水槽31及旋轉滾筒 32各自具有底部。馬達330安裝於水槽31之底部外面。水槽 ^形成有用以排出洗雜之排出σ311及供洗^流= %入口 312。洗滌液由排出口 311往流入口 312循環。 筐體2進而收容有:往水槽31内供水 丨'、不糸統4、使水 僧31内之洗雜進行排水或循環之排水系統5、及將用以使 洗滌物乾燥之溫風送入洗滌槽3之乾燥系統6。 系統6未必為必要者。 者’乾紐 乾燥系統6包含有循環管路61，循環管路61具有與水槽 31=排氣口 313連接之—端部、及用心水槽31之底部送入 乾燥用空氣之通氣口。乾燥系統6更包含配設於循環管路61 之内。卩之送風機62。送風機62係使空氣在循環管路61内流 動。乾燥系統6亦可因應必要而含有：用以收集線屑類並且 進行除塵之過渡器、用以將除塵後之導入空氣除濕之除濕 ^及用以加熱除塵後之空氣並且作出已乾燥之高溫空氣 之加熱部。 ’衰靖式洗衣機1具有配設於筐體2之前面之上部之操作 面板8。操作面板8係可令使用者選擇滾筒式洗衣機1之運轉 排程之模式或各種機能 。操作面板8包含控制電路部81 °控 制電路部81係將使用者輸入之資訊顯示於操作面板8具有 之顯不部。又，控制電路部81亦可由例如作為用以感測水 才曰31内之液位之液位感測器、使用作為用以感測洗滌液之 濁度之'蜀度感測器之光感測器72、或使用作為用以感測洗 201111580 條液之導電度之導電感測器之電極感測器73接收感測信 號。透過操作面板8設定滾筒式洗衣機丨之運轉開始時，控 制電路部81根據該等感測信號，控制供水系統統4所含之電 磁閥或排水糸統5所含之排水闊7 5。由控制電路部81自動控 制之馬達33、供水系統統4、排水系統5及乾燥系統6依據模 式設定或控制程式，共同動作後執行至少清洗步驟、沖洗 步驟、脫水步驟及乾燥步驟。 供水系統統4包含:與水槽31連接之供水管路41、及用 以收容洗劑之洗劑收容部42»供水系統統4可藉由電磁閥之 開關動作而經由供水管路41適時地供水到水槽3丨（參照第i 圖中實線箭頭）。又，第丨圖所示之簡式洗衣機丨利用供水 系統統4之供水，將部分橫切供水管路4丨而配設之洗劑收容 部42内之洗劑適時地投入到水槽31内。 排水系統5包含：具有與水槽31之排出口 311連接之一 端部之第1管路51、及與第丨管路51之他端部連接之排水控 制單元7。排水控制單元7係承接來自水槽31之絲液。排 水系統5更進一步包含:在排水控制單元7具有之循環泵71 與水槽31之間延伸之第2管路52。滾筒七絲機r循環系 71固定於底座712。第2管路52之一端部係連接於循環栗71 之吐出口。X ’第2官路52之他端部連接於水槽^之流入口 312。水槽3卜第i管路51、排水控制單元7及第2管路娜 成洗滌液.祕。彳㈣別係錢騎在㈣路内由排 出口 311朝向流入口 312流動、循環。 排水控制單元7除了循環泵71之外，還具有:作為感測 S8〇 務之濁度感測器使用之光感測器72、作為感測洗 務液^ 感測器使用之電極感測器73、用以將洗 邹之排/排水管路74、及配設於排水管路74之中途 單元7:間75 °排水間75用以開關排水管路74。排水控制 纖維(棉騎)之過糾76。 ^之洗料所含之棉 排水_係在例如清❹驟結糾或沖洗步驟結束時 ；；。其結果是，洗舰會自第i管路51流入到排水控制單 几7。然後，洗滌液通過過濾部76而施行棉纖維之除去處理 後排出到外部。 當排水閥75關閉並且循環泵71作動時，水槽31内之洗 滌液會通過第1管路51而流入到排水控制單元7。然後，洗 滌液通過配設於排水控制單元7内之過濾部76，除去髒汙成 分。通過過濾部76之洗滌液會通過連接於循環泵71之吸引 口之吸引管路711而流入到循環泵71内。然後，洗滌液會通 過連接到循環果71之吐出口之第2管路52而回到水槽31 内。在執行清洗步驟或沖洗步驟期間，亦可視需要而反覆 進行上述之洗滌液的循環。洗滌液之反覆循環會提供於品 質高之清洗步驟或沖洗步驟。 循環泵71之旋轉數亦可改變。當循環泵71之旋轉數設 定較高時（例如，3500rpm) ’流入到水槽31之流入口 312之 洗蘇液會順著朝向旋轉滾筒32内之軌跡而移動（參照第1圖 中箭頭Π)。另一方面，循環泵71之旋轉數設定較低時（例 如，lOOOrpm)’流入到水槽31之流入口阳之洗滌液會朝向 201111580 在旋轉滚筒32與水槽η之間形成的吏間内（參照第1圖中箭 頭Fo)。 循環泉71在例如清洗步驟與沖洗步驟中之至少1個步 驟開始時，進行低速旋轉。其結果是，可抑制洗滌結束時 溶解殘留之洗劑或柔軟劑投入後之高濃度柔軟劑落下到旋 轉滾筒32内之洗滌物。 流入到旋轉滾筒3 2與水槽3丨之間之空間的洗滌液會自 排出口311朝排水系統5排出，並且再次回到水槽31之流入 口 312(水槽内循環步驟）。藉由反覆進行水槽内循環步驟， 促進洗劑之溶解，及/或柔軟劑之濃度之均一化。而且，可 適當避免溶解殘留之洗劑或高濃度之系軟劑造成洗滌物之 印潰等問題。 水槽内循環步驟宜在例如清洗少驟及/或沖洗步驟中 之供水步驟約10秒後設定。取而代I，水槽内循環步驟亦 可在例如感測由水槽31之下端起算約40mm之液位時才開 始。其結果是，可適當避免洗滌液未充分充滿於循環泵71 内之期間之循環泵71的作動。而且，可避免循環泵71之空 洞現象(cavitation)造成之怪音、不足之洗滌液量造成之楯枣 泵71之異常溫度以及在異常溫度下之循環泵71的作動。 滾筒式洗衣機1進而亦可具有用以將洗澡水供給往水 槽31之泵。泵亦可在將洗澡水供給到水槽31後，執行水槽 内傭環步驟。而且，洗澡水供給狀泵與循縣71不同^ 動作，可抑制令使用者感到不愉快之大噪音。 亦可透過操作面板8之操作而對滚筒式洗衣機1設定預 10 201111580 約運轉。滾筒式洗衣機1進行預約運轉時，水槽内循環步驟 亦可在例如一般時間之2倍長的期間進行。其結果是，可適 當地溶解在預約待機中（進行預約設定後到滾筒式洗衣機1 實際開始動作之期間）固化之洗劑。而且，預約運轉期間， 可得到充分的洗淨力並且可減少未溶解之洗劑量。 滾筒式洗衣機1亦可視需要而具有溫度感測器。因應於 使用溫度感測器所測定之洗滌液之溫度，改變水槽内循環 步驟之長度。例如，當溫度感測器感測到5°C之洗滌液之溫 度時，則執行例如感測到20°C之洗滌液之溫度時之倍數之 長度的水槽内循環步驟。其結果是，即使在低水溫下也可 充分溶解洗劑。 第2圖係第1圖所示之排水控制單元7之筐體的截面 圖。第2(a)圖係顯示筐體之其中一截面。第2(b)圖係顯示筐 體之相反側之截面。 排水控制單元7包含筐體70。筐體70安裝有第1圖所示 之循環泵71、光感測器72、電極感測器73、排水管路74、 排水閥75及過濾部76。筐體70包含朝水平方向延伸之直管 部701。直管部701具有連接於第1管路51之一端部。筐體70 更包含連接於直管部701之他端部之收容管部702。收容管 部702係由與直管部701之連接部朝斜上方延伸。筐體70更 包含收容至收容管部702内之過濾部76。過濾部76係由洗滌 液除去棉纖維。直管部701及收容管部702係一體成型，構 成1個管路。 略圓管狀之直管部701包含平坦内面772。平坦内面772 11 201111580 係由直管部斯之中途部朝下游之收容管部延伸 。沿著 通過直管㈣丨之中㈣之水平面而延伸之平坦内面形 成朝收騎部7G2延伸之平”絲域。光感測器η之使用 於光的出射及受光之平垣内面772可防止光感測 器72使用 之紅外光線之不需要的折射。 直管。卩7G1形成有-對貫通孔773。貫通孔773插通有電 極感測器73。電極感測器73之電極部係突出於直管部7〇ι 内’且與直管㈣1包覆於其内之洗驗接觸。 收容管部702之内部空間下方形成有連接於排水管路 74之第1開口部774、及連接於循環系了丨之吸引口之第2開〇 部77丨。第丨開口部774及第2開口部771係設置於與直管部 7〇1之貫通孔773相對向之面。第丨開口部774成為與排水管 路74連接之連接部。又，第2開口部771成為與循環泵71連 接之連接部。 過濾部76具有：形成網目狀之過濾器776、及連接於過 濾器776之蓋部704。蓋部704係可密封地連接於收容管部 7〇2之前端開口部》過濾器776係形成為可除去棉纖維。蓋 部704包含拿取部705。拿取部705係由蓋部7〇4之外面沿著 收容管部702之軸朝外方延伸。過濾部76係可對收容管部 702自由裝卸。因此’使用者可通過拿取部7〇5而容易地由 收容管部702拆卸過濾部76。 第3圖係排水控制單元7之平面圖。第4圖係排水控制弟 元7之正面圖。第5圖係由循環泵71側觀察排水控制單元7义 側面圖》第6圖係由電極感測器73側觀察排水控制單元7义 r e- 12 201111580 側面圖。 第3圖、第5圖及第6圖係部分地顯示第1管路51。洗滌 液由水槽31通過第1管路51而流入到排水控制單元7。光感 測器72感測流入到排水控制單元7之洗滌液的濁度。 第7圖係顯示安裝於排水控制單元7之筐體70之直管部 701的光感測器72。第8圖係光感測器72之縱截面圖（第8(a) 圖）、正面圖（第8(b)圖）、右側面圖（第8(C)圖）、左側面圖（第 8(d)圖）及平面圖（第8(e)圖）。第9圖係光感測器72具有之支 持體之縱戴面圖（第9(a)圖）、正面圖（第9(b)圖）、右側面圖（第 9(C)圖）、左側面圖（第9(d)圖）、平面圖（第9(e)圖）及底面圖 (第9⑴圖）。 光感測器72包含：出射紅外光線之發光元件721、及接 收由發光元件721出射之紅外光線之受光元件722。配設於 直管部701之外側之發光元件721及受光元件722係互相對 向成在發光元件721與受光元件722之間形成紅外光線之光 路。直管部701係由使紅外光線透過之材料形成。來自發光 元件721之紅外光線通過充滿於由直管部701之管壁部所包 圍之空間内之洗滌液中。洗滌液之濁度大時，到達受光元 件722之紅外光線之光量會變小，另一方面，當洗滌液之濁 度小時，到達受光元件722之紅外光線之光量會變大。而 且，光感測器72發揮作為用以感測洗滌液之濁度之濁度感 測器的功能。 光感測器72進而更具有用以保持發光元件721及受光 元件722之支持體723。具有略U字形之截面之支持體723包 13 201111580 含:用以支持發光元件721之第1支持部724、用以支持受光 兀件722樣編卩725、及讀部724她支持部 725連結之架橋部726。架橋部咖係保持在發光元件切與 受光4722互相對向之位置。直管部7〇1上之架橋部⑽ 相對於直管部7〇1之軸呈直角延伸。 第1支持部724内除了發光元件721，還配置有用以使紅 外光線由發光元件7心狀電路基板727支持部725 内除了受光元件722之外’還配置有用以因應於受光元件 722所接收之紅外光線之光量而生成電壓信號之電路基板 728。進而，光感測器72包含用以電力供給至電路基板727、 728之電線729。薄板形狀之電路基板727、728(參照第7圖 及第8圖）之長向方向軸係朝上下方向延伸。 第1支持部724具有與第2支持部725相對向之内側面 241。内側面241包含發光元件721之透鏡部2ιι。由發光元 件721出射之紅外光線通過透鏡部211而朝向第2支持部 725。透鏡部211係相對内側面241之其他部份稍微***。沿 著朝内側面241之上下方向延伸之邊緣而形成第丨肋242。第 1肋242由内側面241突出於内方（直管部7〇1之中心軸方向）。 第2支持部725具有與第1支持部724相對向之内側面 251。内側面251包含受光元件722之透鏡部221。由發光元 件721出射之紅外光線通過透鏡部221而到達受光元件 722。透鏡部221係相對内側面251之其他部份稍微***。沿 著朝内側面251之上下方向延伸之邊緣形成第2肋252。第2 肋252係由内側面251突出於内方（直管部7〇1之中心軸方 201111580 向）。 、，形成平坦内面772之直管部701之管壁部份的外面也形 狀。因此’由發光元件721出射之紅外光線不會因直 之兩壁面而有不必要之折射。支持體723係由上方 ，向直管部701外嵌。發光元件721係由直管部7〇1外部出射 紅外光線。受光元件722係在直管部7〇1外部接收紅外光 線。當支持體723與直管部7G1嵌合時，第丨支持部724之第】 肋242及第2支持部725之第2肋252會抵接於直管部7〇1之平 坦外面。第1肋242及第2肋252由直管部州之平坦而離開第 1支持部724及第2支持部725之内側面24卜251。其結果是， 可抑制支持體723與直管部701嵌合所造成之透鏡部211、 21及直管部701之損害。因此，亦可將肋242、252與直管 部701之外面之間的壓力（嵌合力）設定較高。而且，支持體 723可堅固地安裝於直管部701。 支持體723之架橋部726之中央部形成有朝上下方向延 伸之環狀收容壁261。環狀收容壁261形成有形成架橋部726 之上面之承板262以及圓柱形狀之收容空間263。承板262形 成有貫通孔264。貫通孔264連通於收容空間263。直管部701 >、有朝上方延伸之圓柱形狀之突出部265。當支持體723與 直管部701之嵌合完成時，突出部265***到收容空間263 ’ 並且突出部265之上面抵接於承板262之下面。突出部265形 成有朝下方延伸之螺孔◊插通至承板262之貫通孔264之螺 、、糸與突出部265之螺孔螺合。而且，支持體723會牢固地固 定於直管部701。在發光元件721及受光元件722之上方橫跨 15 2〇11Π58〇 之承板262可承接朝向安裝有切體⑵之直管部7〇ι之部 份的塵埃或水滴等落下物。 再度參'、、、第2圖至第6圖。相對光感測器72配設於猶微 下、子側之排水閥75可㈣排水管路μ連結於排水控制單元 =筐體70田排水閥75開啟時，直管部別及與包覆於收 二。[WG2内之洗騎係通過排水管路％而排水到外部。排 水官路74與筐體7G之連接位置可作為收容管部观之基端 ㈣近。其結果是’藉由開啟排水町5，在收容管部服以 及收容管部⑽與直管部7G1之連接部周邊，會產生與循環 果71作動時逆向的洗滌液之液流。 電極感測173崎於比財管路74與收容管部7〇2之 連接位置㈣«近下游側。電極感測器Μ配置於比光感 =72更靠近下游側。光感測㈣可作為用以感測《液 濁度之濁度感測器的機能。 電極感测器73可作為用以感測 洗“液導電度之導電感測器的機能。 電極感測器73具有一對她工 設於比端子板731靠近下游側1 ;32。知子板732配 μ #側兩％子板731、m各自連接 ^並對端子板731、732供給高頻交流電壓。施加之 :壓=以及振幅只要是可測定洗務液之導電 可，沒有特別限定。 之H端子板731之概略圖。第iG(a)_子板731 =。第:(_端子板731之正面圖。與第 = 再者，關於第2圖至第6圖所說明之下 游之W板故可作成與端子板731為同樣形狀與大小。 201111580 、鳊子板731係由i個金屬板形成。端子板爪構成撓曲構 造。以朝上下方向延伸之撓曲線734為邊界，端子板別之 邊緣4735 736朝同方向撓曲。因此，相對於橫切棱曲線 734之繞著軸的彎曲力矩，端子板731具有高剛性。端子板 731之上部形成有與電線733連接之連接部737。 在端子板731之與邊緣部735、736之撓曲方向為相反側 之面上形成圓板狀之較厚部738及圓柱狀之電極部辦。端 子板73道由較厚部738而連接於電極部辦之基端部。⑽ 371嵌合於電極部739之基端部。電極部739插人至形成於排 水控制單元7之筐體7〇之直管部7_貫通孔773(參照第2 圖）。 端子板731形成-對貫通孔31〇。其中一貫通孔31〇係相 對於電極部739位於上方。另—貫通孔31_目對於電極部 739位於下方。一對貫通孔31〇及電極部739係整齊排列於上 下方向。撓曲線734係相對於連結一對貫通孔31〇之中心點 之線平行。貫通孔310***稱為螺栓之固定具。而且，貫通 孔310係作為端子板73i安裝於直管部7〇丨之外面之固定部 的機能。 使用固定具，藉由端子板731往直管部701之外面的壓 接，安裝於電極部739之基端部之〇環371會受到壓縮。〇環 37丨之復元力及插通至貫通孔310之固定具使端子板73ι產 生彎曲力矩。端子板731之左右緣係沿著沿一對貫通孔31〇 之整齊排列方向延伸之撓曲線而撓曲，藉此端子板731對彎 曲力矩具有高剛性。因此，端子板731堅固地安裂於直管部 17 201111580 7〇1之外面。其結果是，配設於電極部739之基端部之〇環371 受到強力壓縮，發揮高密封性能。而且，透過形成於直管 部701之貫通孔773 ’可適當地抑制洗務液漏出。再者，本 實施形態中，繞轉734係與彎曲力矩之轴正交，但燒曲線 734與彎曲力矩之轴的交又角妓有特別限定。又，本實施 形態中’係揭示貫通孔310作為固定部，但亦可使用其他固 定手法取而代之，例如，使用夹具而將端子板731壓接於直 管部701之外壁之固定手法或以可使〇環發揮密封機能之充 分的力量使端子板731壓接於直管部7〇1之外壁。再者，使 用夾具時’挾持於夾具之端子板731的部份作為固定部之機 第11圖係安裝有端子板731、732之直管部7〇1的截面 圖。第11(a)圖係位於上游側之端子板731及電極部739周圍 之截面圖。第u(b)圖係位於下游側之端子板732及電極部 739周圍之截面圖。 橫切直管部701之平坦内面772而突出於直管部7〇1内 部之電極部739與包覆於直管部7〇1内之洗滌液接觸。透過 電線733，對端子板731、732施加高頻交流電壓，並測定存 在於一對電極部739之間之洗滌液的導電度（阻抗）。 第12圖係模式地顯示電極部739周圍之洗滌液之液流 者。再者’第12圖中，對上游之電極部附上標號739a，對 下游之電極部附上標號73%。 如第12圖所示，一對電極部739a、739b係沿著直管部 701之長向方向並列配置。由一對電極部739a、739b之軸所 2〇11Π58〇 定義之平面Ρ係對直管部7〇1之軸大略平行。上游之電極部 73知係將沿著直管部701之軸流動之洗滌液分流為上下方 向。因此，橫切平面Ρ之洗滌液的流量會變少。其結果是， 適合用於測定洗滌液之導電度之電極部739a、739b之間的 空間（例如，15mm以上30mm以下之空間）中，洗滌液之流動 眭降低。而且，得到適合導電度之測定之洗滌液的流動。 又，如第12圖所示，包含一對電極部739a、739b之轴 的平面P係呈水平面。一對電極部739a、739b並且宜為不橫 切直管部7 01之内部空間上部（排水控制單元7在設計上可 能發生存留空氣之空間（例如’直管部7〇1之内部空間中上 側1/S之區域))及直管部701之内部空間下部（排水控制單元 7在設計上可能堆積髒汙成分之空間（例如，直管部701之内 部空間中下側1/5之區域)）。其結果是，電極部739a、739b 之突出部份之面全體接觸於直管部701内之洗滌液。因此， 可抑制對於測定直管部701内之空氣之導電度的影響。又， 電極部739a、739b在直管部7〇1之内部空間中上側4/5之區域 突出時，可抑制對於在直管部701内堆積之髒汙成分之導電 度之測定的影響。 第13圖係模式地顯示光感測器72及電極感測器73周圍 之洗滌液之流動。第13圖中顯示第7圖至第9圖中相關說明 之光感測器72之發光元件721與受光元件722之間之紅外光 線之光路250。又，與第12圖同樣，對於配置於上游側之電 極部附上標號739a，對於配置於下游側之電極部附上標號 739b。 19 201Π1580 為了防止形成光路250之紅外光線之不必要的折射，形 成於直管部701之内壁面之平坦内面772之上游側端部277 係由其他之内壁面***。因此，上游侧端部277會擾亂洗滌 液之液流。因此’為了調整洗滌液之液流直到到達光路25〇 為止，上游側端部277宜形成於相對於光路250相當遠離上 游側之位置。此時，橫切光路250之洗滌液成為適合根據到 達第7圖至第9圖相關說明之光感測器72之受光元件722之 紅外光線之光量而判定之洗滌液濁度之測定的液流。光感 測器72之紅外光線不會對洗蘇液之流動造成任何影響。因 此’業經整流之洗滌液之液流會到達電極部739a、73%。 如第12圖之相關說明，藉由上游之電極部739a，平行 於直管部701之軸方向之液流的一部份會朝上下分流。其妗 果是，洗滌液之液流會被擾亂。電極部739a造成之洗滌液 之液流的擾亂由於係在比第7圖至第9圖相關說明之光感測 器72更靠近下游側發生，因此幾乎不會對光感測器72進行 之濁度測定造成影響。 如第12圖之相關說明，由電極部7393、7391)之軸所定 義之平面P係對直管部701之軸大略平行。因此，例如，若 在直管部701内使洗滌液為逆流（由直管部7〇1朝水槽“之 排出口311(參照第1圖）之方向），電極部73%會使洗滌液之 液流朝上下分流，但電極部739a在洗滌液之液流方向中， 會與電極部739b重疊，因此不會過度擾亂洗滌液之液流。 因此’即使係使洗蘇液逆流之情況，亦可以較高精度感測 通過光路250之洗滌液的濁度。 20 201111580 在劃定平坦内面772之上側之界線的上緣391及劃定平 坦内面772之下側之界線的下緣392中，直管部7〇1係成屈曲 成凹狀之戴面輪廓形狀（參照第7圖”在構成該屈曲之截面 輪廓形狀之部份中，洗滌液之液流比其他部份容易滯留。 如第13圖所示，電極部739a、739b配設成：電極部739a、739b 之截面之一部份會進入平坦内面772。在由電極部739a、 739b所挾持之上緣391附近，由於洗滌液特別容易滯留，因 此可得到適合測定洗滌液導電性之低流動性的液流。又， 藉由在電極部739a、739b之間所劃定出之平面P與上緣391 大略平行’藉此可更為提高導電度之測定精度。 再次參照第1圖至第5圖。電極感測器73之下游配設有 循環栗71。循環泵71與排水控制單元7之筐體70之間配設有 吸引管路711 ’吸引管路711包含:與循環泵71之吸引口連接 之一端部、及連接於在排水控制單元7之筐體70形成之第2 開口部771之他端部。由循環泵71之吐出口延伸之第2管路 52連接於在水槽31形成之流入口 312。 第Μ圖係模式地顯示由電極感測器73到循環泵71之洗 務液之液流的平面圖。與第14圖一併參照第1圖及第2圖。 第14圖中係顯示吸引管路711。如第14圖所示，電極感測器 73係配設於比吸引管路711與排水控制單元7之連接部 771(第2圖中顯示為第2開口部771)更靠近上游側。又，與第 12圖同樣’對配置於上游側之電極部附上標號739a，對配 置於下游側之電極部附上標號739b。 構成排水控制單元7之筐體70之直管部701及收容管部 21 201111580 702在平面視圖中係形成筆直的流路⑻，中直管部彻 與收容管部观之界線使用纽麵卜”管路川連接於 直管部7〇1及收容管部702形成之筆直流路。吸引管路7_ 與直管部7(Π及收容管部搬形成之筆直流路之延伸方向不 同之方向⑻4圖所示之排水控制單^之構造中為直角方 向)延伸。沿著筆直祕而軸之洗—受縣自循環系Μ 而改變流動方向，成為朝吸弓i管路7ιι流動。電極 感測器73係由與連接部771相對向之側之直” 7_内面 突出。再者，所謂「與連接部771對向之㈣内面」，係指 沿著直管部祖收容管部702之長向方向轴，將直管部7〇1 及收容管部分隔時，存在於距離連接部Μ較遠之位置 者之内面，且為以吸引管路711之軸為 土點，例如，位於上 游及/或下游’相差吸引管路711之内徑之3件 之收容管部702及/或直管部701之内面。 。之又 以吸引管路711之軸為基點，位於上游 幻疋思扣 夂/或下游相差吸引 官路711之内徑之3.5倍長度之收容管 υ2及/或直管部之 内面區域，更佳的是意指以吸引管路711 車由為基5¾，彳立 上游及/或下游相差吸引管路711之内徑之3件‘· 、 管部702及/或直管部7G1之内面區域。電彳。長度之收谷 , 冤槌感測器73之電極 部739a、739b係由此等内面區域突出。 第14圖係顯示橫切電極感測器7 3附近之技路截 上之任意點P1。點P1係離開連接部771 又位置（即，與連接 部771相對向之面附近)之任意點。點ρι中 由暫iS；加710 〇、 739b之基端部朝向前端部之方向之洗滌液之流力會產生 22 201111580 作用。因此，藉由電極感測器73配設於與連接部771相對向 之位置，可促進除去卡在電極感測器73之棉纖維。 如上所述，電極部739a、739b係在直管部701内形成突 出部。因此，流入至控制單元7之洗滌液所含之棉纖維容易 卡在電極部739a、73卯。然而，藉由流力VI，卡在電極部 739a、739b之棉纖維會變得比較容易由電極部739a、739b 除去。再者，如第2圖所示，收容於收容管部702之過濾部 76(參照第1圖）之一部份存在於電極感測器73與連接部771 之間。第14圖中，在網狀區域中概略地表示過濾部76。洗 滌液通過存在於過濾部76之上游位置之電極感測器73後， 且在到達存在於過濾部76之下游位置之吸引管路711之 前，會通過配設於收容管部702内之過濾部76。因此，棉纖 維由電極部739a、739b除去後，會由過滤部76收集。又’ 過濾部76具有可與洗滌液之流動抵抗之機能，因此在循環 栗71停止後’可使電極部周圍之洗滌液之流動急速降低。 第15圖係用以說明使用了循環泵71及排水閥75除去棉 纖維者。第15(a)圖係模式地顯示由電極感測器73到循環泵 71之洗滌液之液流的平面圖。第15(b)圖係模式地顯示由電 極感測器73到排水閥75洗務液之液流之平面圖。與第15圖 一併參照第1圖。再者，第15圖係顯示形成到循環泵71之流 路之吸引管路711及形成到排水閥75之流路之排水管路 74。又，與第12圖同樣，對上游之電極部附上標號739a , 對下游之電極部附上標號739b。再者，第15(a)圖與第14圖 所示之模式圖同樣，係用以顯示第15(b)圖所示之洗滌液之 23 201111580 流動形態之對比。 如第15(a)圖所示，電極感測器73宜係相對於排水管路 74之連接部774(第1開口部774)配設於下游，且相對於吸引 管路711之連接部771(第2開口部771)配設於上游。藉由如此 之電極感測器73之配置，在電極部739a、739b突出之管路 部份中，當開啟排水閥75時，則如第15(b)圖所示，會產生 與痛環果71作動時逆向之洗蘇液之液流。而且，卡在電極 部739a、739b之棉纖維會變得容易由電極部739a、739b除 去0 第16圖係顯示循環泵71。第16(a)圖係循環泵71之截面 圖。第16(b)圖係循環泵71之平面圖。第16(c)圖係由吸引口 側觀察循環栗71之圖。 循環泵71包含形成循環泵71之外壁之泵殼713 ^泵殼 713内部配置有軸承隔壁714。軸承隔壁714將泵殼713之内 1間劃分成2個空間。連通到吸引口 71 $之空間内，配設 有渦輪717 1配設㈣輪717之空_接之空間内配設有 馬達718。馬達718適合使用例如直流電無刷馬達。馬達718 之故轉轴719橫切軸承隔壁714並朝配設有練717之空間 延伸。業已與轴承隔壁714-體化之渦輪717係由旋轉轴719 所支持。藉由馬達718之驅動，渦輪Μ與轴承隔卵4一起 旋轉。 泵殼形成有與吸弓丨管路川連接之吸引口 715、及與 第2管路52連接之吐出σ7ΐ6。吸引〇715及吐出嗔係連 通到配設有渦輪717之空間。 C: 24 201111580 安裝座131自泵殼713之外面朝半徑方向突出寸S。如 第16圖所示之循環泵71之安裝座131包含朝外方大幅突出 之3個C型安裝片132。安裝片132係使用螺栓固定於底座 712(參照第1圖）之突座部。 第17圖係顯示水槽31與第2管路52之連接部的構造。第 17(a)圖係構成連接部之導管的平面圖。第17(b)圖係第17(a) 圖所示之導管的横截面圖。第17(C)圖係第17(a)圖所示之導 管的縱截面圖。 水槽31之流入口 312係由自水槽31之外壁朝上方突出 之環狀肋121所形成。沿著環狀肋121之内周面配設有Ο環 122。Ο環122被導管槽溝520推壓。 導管槽溝520具有屈曲成L字狀之本體部521。本體部 521包含:與第2管路52連接之導管522、與由導管522朝流入 口 312延伸之下半管路523。下半管路523之前端部具有：構 成與流入口 312之開口部互補之外周輪廓之環狀突出部 525。環狀突出部525之内部配設有擠壓壁123。擠壓壁123 係由環狀突出部525之内部空間之大略中心位置朝下方彎 曲成弧狀，且具有朝向旋轉滾筒32之旋轉中心方向之截 面。擠壓壁123之兩端連接於環狀突出部525之内壁面。環 狀突出部525與環狀肋121之間配設有Ο環122。Ο環122係在 環狀突出部525與環狀肋121之間被壓縮，且作為密封構件 之機能。 導管槽溝520之下半管路523與環狀肋121鄰接，且使用 固定具125(第17圖中，突座係以固定具125表示）固定於形成 25 201111580 於水槽31之壁部之較厚部124。 導管槽溝520進而包含蓋524。蓋524與下半管路523一 倂由導管522所形成之流路屈曲，而形成朝向流入口 312之 流路。藉由循環泵71之作動，由第2管路52通過導管槽溝 520 ’洗滌液流入到流入口 312。再者，循環泵71係以例如 3500rpm之旋轉數旋轉。 水槽31之内部配設有旋轉滾筒32。旋轉滾筒32之上面 與流入口 312之間配設有承擋壁126。承擋壁126係由與水槽 31之外壁連接之連接壁127所支持。承擋壁126與擠壓壁123 形成狹小流路。該狹小流路係作為使洗滌液喷射到洗滌槽3 内之喷射口 129的機能。 通過承擋壁126與擠壓壁123所形成之噴射口 129之洗 滌液接著通過形成於構成水槽31之外面之一部1 & 1切 < 刖端壁 128與旋轉滚筒32之前端壁321之間之流路281，並供终到旋 轉滾筒32之内部。前端壁128與擠壓壁123共同動作而推壓〇 環 122。 喷射口 129與旋轉滾筒32係分開形成。旋轉滚筒32内之 洗滌物不接觸到喷射口 129。因此，喷射口 129幾乎不會對 洗滌步驟、沖洗步驟或乾燥步驟造成不良影響。嗔射口129 不會傷害洗滌物、使之破損，也幾乎不會損害洗膝物之外 觀。進而，喷射口 129之下游之流路281係由水槽31之前端 壁128與旋轉滚筒32之前端壁321所形成，因此不需要用以 防止漏水之追加構造。第17圖所示之構造中，僅使用〇環122 作為密封構件。201111580 VI. Description of the Invention: C invention belongs to the technical field: 3 Technical Field The present invention relates to a washing machine capable of quickly and correctly sensing the degree of foaming of a washing liquid. t Previous 3 Background The degree of foaming of the washing liquid is an important parameter in the washing operation. For example, when the degree of foaming of the washing liquid is high, the amount of water used to rinse the laundry must be increased. On the other hand, when the degree of foaming is small, it is desirable to reduce the amount of water used to rinse the laundry from the viewpoint of water conservation. Japanese Laid-Open Patent Publication No. 2009-28113 discloses a washing machine in which a bubble of a washing liquid is introduced into a water guiding groove provided near a photosensor by driving a washing tank, and then according to the light transmittance of the bubble during the disappearance period Change to determine the degree of foaming. The method disclosed in Japanese Laid-Open Patent Publication No. 2009-28113 is intended to determine that the foaming is necessary until the bubble introduced into the water guiding groove disappears. Therefore, it takes a long time to determine the degree of foaming. Therefore, when the cleaning time is short, there is a problem that the degree of foaming cannot be determined. Further, when the water is supplied during washing, since the light transmittance changes, there is a problem that the degree of foaming cannot be accurately determined. The conductivity sensor includes a pair of electrodes that protrude from the wash liquid. The change in resistance of the wash liquid is sensed by applying a high frequency voltage between the electrodes. Therefore, the conductivity sensor disposed close to the photo sensor disturbs the flow of the stripping liquid flowing in the pipeline 201111580, so that the sensing signal of the photo sensor is unstable. SUMMARY OF THE INVENTION The object of the present invention is to provide a washing machine which can quickly and accurately sense the degree of foaming of a washing liquid. A washing machine according to one aspect of the present invention includes a washing tub having an inflow port through which a washing liquid flows in, and a discharge port for discharging the washing liquid; and a pipe line connected to the inflow port and the discharge port The flow device is configured to pass the washing liquid through the pipe to the inlet port through the discharge port; the light sensor detects the amount of light passing through the washing liquid in the pipe; and the control unit The washing actor is controlled according to the detection signal of the photosensor, wherein the photo sensor is configured to detect and output a first amount of light during operation of the flow device and a second amount of light during a stop period of the flow device. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic block diagram showing a drum type washing machine in accordance with an embodiment of the present invention. The second (a) and (b) drawings show the honey used in the drainage control unit of the drum type washing machine shown in Fig. 1. Fig. 3 is a plan view showing a drainage control unit of the drum type washing machine shown in Fig. 1. Fig. 4 is a side view showing the drainage control unit of the drum type washing machine shown in Fig. 1 in the drainage control unit of the drum type washing machine shown in Fig. 1. Fig. 6 is a side view of the drainage control unit shown in Fig. 5 as viewed from the opposite side. Fig. 7 is a view showing the mounting structure of the light sensor used in the drain control unit shown in Figs. 3 to 6. Figures 8(a) to (e) show the photosensor shown in Fig. 7. Figures 9(a) to (f) show the construction of the bracket of the photosensor shown in Fig. 8. The first (a) and (b) diagrams show the electrode sensors used in the drainage control unit shown in Figs. 3 to 6. Figure 11 (a) and (b) show the installation structure of the electrode sensor shown in Figure 1. Fig. 12 is a view showing the flow of the cleaning liquid around the electrode sensor shown in Fig. 11. Fig. 13 is a view showing the flow of the washing liquid in the flow path of the electrode sensor shown in Fig. 7 to the electrode sensor shown in Fig. 7. Fig. 14 is a view showing the flow of the electrode sensor of the drain control unit shown in Figs. 3 to 6 toward the washing liquid of the circulation pump. 15(a) and (b) are diagrams showing the flow of the washing liquid around the electrode sensor during the operation of the circulation pump of the drainage control unit shown in Figs. 3 to 6 and the operation of the drain valve. (a) to (c) are schematic diagrams of a circulation pump of the drainage control unit shown in Figs. 3 to 6 . 201111580 Sections 17(a) to (c) illustrate the structure around the inlet of the water tank of the drum type washing machine shown in Fig. 1. Fig. 18 is a view showing the functional configuration of the control circuit portion of the drum type washing machine shown in Fig. 1. Figure 19(a), (b) shows a graph of the signal sent by the circulator during the intermittent action by the light sensor. Fig. 20 is a diagram showing a data structure of the upper limit threshold and the lower limit threshold of the photo sensor. C. Embodiment 3 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In addition, the terms used in the following description to indicate "upper", "lower", "left", and "right" are used for the purpose of illustration only and are not intended to limit the invention. In addition, the terms "upstream" and/or "downstream" used in the following description means "upstream" of the flow of the washing liquid from the discharge port of the washing tub toward the washing liquid of the drain control unit, unless otherwise specified. And / or "downstream". Fig. 1 is a schematic configuration diagram of a drum type washing machine according to an embodiment. Further, the principle described below is not limited to the drum type washing machine shown in Fig. 1, and may be applied to other washing machines (for example, a pulsating pump type washing machine or a stirring type washing machine). The drum type washing machine 1 has a casing 2. A washing tub 3 is provided inside the casing 2. The washing tub 3 includes a cylinder 2 〇1 Π 〇 〇 〇 〇 水槽 可 3 3 3 3 3 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及 及Motor 33. The water tank 31 and the rotary drum 32 each have a bottom. The motor 330 is mounted outside the bottom of the water tank 31. The water tank ^ is formed to discharge the discharge σ 311 and the cleaning flow = % inlet 312. The washing liquid is circulated from the discharge port 311 to the inflow port 312. Further, the casing 2 accommodates a water supply system that supplies water to the water tank 31, a system 4, a drainage system that drains or circulates the water in the water tank 31, and a warm air that is used to dry the laundry. The drying system 6 of the washing tank 3. System 6 is not necessarily necessary. The dry system 6 includes a circulation line 61 having an end portion connected to the water tank 31 = the exhaust port 313, and a vent opening for supplying the drying air to the bottom of the center water tank 31. The drying system 6 further includes a distribution within the circulation line 61.送 送 fan 62. The blower 62 causes air to flow in the circulation line 61. The drying system 6 may also contain, as necessary, a transition device for collecting the swarf and performing dust removal, dehumidification for dehumidifying the introduced air after dust removal, and heating the dust-removed air and making the dried high-temperature air. The heating part. The aging washing machine 1 has an operation panel 8 disposed above the front surface of the casing 2. The operation panel 8 allows the user to select the mode of operation of the drum type washing machine 1 or various functions. The operation panel 8 includes a control circuit unit 81. The control circuit unit 81 displays information input by the user on the display portion of the operation panel 8. Further, the control circuit unit 81 may be used, for example, as a liquid level sensor for sensing the liquid level in the water tank 31, and as a light sensor for sensing the turbidity of the washing liquid. The sensor 72 receives the sensing signal using the electrode sensor 73 as a conductive sensor for sensing the conductivity of the 201111580 strip. When the operation of the drum type washing machine is started by the operation panel 8, the control circuit unit 81 controls the water discharge valve or the drainage system 5 included in the water supply system 4 based on the sensing signals. The motor 33, the water supply system 4, the drain system 5, and the drying system 6 which are automatically controlled by the control circuit unit 81 perform at least the washing step, the rinsing step, the dehydrating step, and the drying step in accordance with the mode setting or control program. The water supply system 4 includes: a water supply line 41 connected to the water tank 31, and a lotion storage unit 42 for containing a lotion. The water supply system 4 can timely supply water through the water supply line 41 by the switching operation of the electromagnetic valve. 3 到 to the sink (refer to the solid arrow in the i-th diagram). Further, the simple washing machine shown in Fig. 丨 uses the water supply of the water supply system 4, and the lotion in the lotion accommodating portion 42 disposed partially across the water supply line 4 is appropriately put into the water tank 31. The drain system 5 includes a first line 51 having one end connected to the discharge port 311 of the water tank 31, and a drain control unit 7 connected to the other end of the second line 51. The drain control unit 7 receives the silk liquid from the water tank 31. The drain system 5 further includes a second conduit 52 extending between the circulation pump 71 and the water tank 31 of the drain control unit 7. The drum seven-wire machine r cycle system 71 is fixed to the base 712. One end of the second conduit 52 is connected to the discharge port of the circulating pump 71. The other end of the X's second official road 52 is connected to the inlet 312 of the sink. The water tank 3 bu i channel 51, the drainage control unit 7 and the second pipeline Na Na washing liquid. secret.彳 (4) Do not carry money in the (four) road, and the outlet 311 flows toward the inflow port 312 and circulates. The drain control unit 7 has, in addition to the circulation pump 71, a photo sensor 72 used as a turbidity sensor for sensing S8, and an electrode sensor used as a sensing detergent liquid sensor. 73. The utility model is used for arranging the draining/draining pipe 74 and the unit 7 in the middle of the draining pipe 74. The 75° draining zone 75 is used for opening and closing the draining pipe 74. Drainage control fiber (cotton ride) has been corrected 76. ^ The cotton contained in the washing material is drained, for example, at the end of the cleaning or finishing step; As a result, the washing ship will flow from the i-th pipe 51 to the drainage control sheet 7. Then, the washing liquid is subjected to removal treatment of the cotton fibers through the filter portion 76, and then discharged to the outside. When the drain valve 75 is closed and the circulation pump 71 is actuated, the washing liquid in the water tank 31 flows into the drain control unit 7 through the first line 51. Then, the washing liquid passes through the filter portion 76 disposed in the drain control unit 7, and the dirty component is removed. The washing liquid that has passed through the filter unit 76 flows into the circulation pump 71 through the suction line 711 connected to the suction port of the circulation pump 71. Then, the washing liquid is returned to the water tank 31 through the second line 52 connected to the discharge port of the circulation fruit 71. During the execution of the washing step or the rinsing step, the above-mentioned washing liquid circulation may be repeated as needed. The reversal cycle of the wash solution is provided in a high quality wash or rinse step. The number of rotations of the circulation pump 71 can also be changed. When the number of rotations of the circulation pump 71 is set high (for example, 3500 rpm), the washing liquid flowing into the inlet 312 of the water tank 31 moves along the trajectory toward the inside of the rotary drum 32 (refer to arrow 第 in Fig. 1). . On the other hand, when the number of rotations of the circulation pump 71 is set low (for example, 100 rpm), the washing liquid flowing into the inlet of the water tank 31 will be directed toward the gap formed between the rotary drum 32 and the water tank η in 201111580 (refer to Arrow Fo in the first figure. The circulation spring 71 performs low-speed rotation at the beginning of at least one of the washing step and the rinsing step, for example. As a result, it is possible to suppress the washing of the high-concentration softening agent which has been dissolved in the spinning drum 32 after the washing agent or the softening agent which has been dissolved at the end of washing. The washing liquid flowing into the space between the rotating drum 3 2 and the water tank 3 会 is discharged from the discharge port 311 toward the drain system 5, and is returned to the inflow port 312 of the water tank 31 (circulation step in the water tank). By repeating the inner tank circulation step, the dissolution of the lotion is promoted, and/or the concentration of the softener is uniformized. Further, it is possible to appropriately avoid the problem of dissolving the residual lotion or the high-concentration softener causing the washing of the laundry. The circulation step in the water tank is preferably set after about 10 seconds of the water supply step in, for example, the cleaning and/or the rinsing step. Alternatively, the inner tank circulation step can also be started, for example, when sensing a liquid level of about 40 mm from the lower end of the water tank 31. As a result, the operation of the circulation pump 71 during the period in which the washing liquid is not sufficiently filled in the circulation pump 71 can be appropriately avoided. Further, it is possible to avoid the strange noise caused by the cavitation of the circulation pump 71, the abnormal temperature of the pump 71 caused by the insufficient amount of washing liquid, and the operation of the circulation pump 71 at the abnormal temperature. The drum type washing machine 1 may further have a pump for supplying bath water to the water tank 31. The pump can also perform the commissioning step in the sink after supplying the bath water to the water tank 31. Further, the bath water supply pump is different from the Xunxian 71, and the noise that is unpleasant to the user can be suppressed. The drum type washing machine 1 can also be set to operate about 10 201111580 by the operation of the operation panel 8. When the drum type washing machine 1 performs the reserve operation, the circulation step in the water tank may be performed for a period of twice as long as the normal time. As a result, it is possible to appropriately dissolve the lotion which is solidified in the reservation standby (during the time when the reservation setting is made until the drum type washing machine 1 actually starts to operate). Moreover, during the scheduled operation, sufficient detergency can be obtained and the amount of undissolved washing can be reduced. The drum type washing machine 1 also has a temperature sensor as needed. The length of the circulation step in the water tank is changed in response to the temperature of the washing liquid measured by the temperature sensor. For example, when the temperature sensor senses the temperature of the washing liquid of 5 ° C, an in-tank circulation step of, for example, sensing the length of the temperature of the washing liquid of 20 ° C is performed. As a result, the lotion can be sufficiently dissolved even at a low water temperature. Fig. 2 is a cross-sectional view showing the casing of the drainage control unit 7 shown in Fig. 1. Figure 2(a) shows one of the sections of the housing. Figure 2(b) shows the cross section on the opposite side of the housing. The drain control unit 7 includes a housing 70. The casing 70 is provided with a circulation pump 71, a photosensor 72, an electrode sensor 73, a drain line 74, a drain valve 75, and a filter portion 76 shown in Fig. 1 . The casing 70 includes a straight pipe portion 701 that extends in the horizontal direction. The straight pipe portion 701 has an end portion connected to one of the first conduits 51. The housing 70 further includes a housing tube portion 702 that is coupled to the other end of the straight tube portion 701. The housing tube portion 702 extends obliquely upward from the connecting portion with the straight tube portion 701. The casing 70 further includes a filter portion 76 housed in the housing tube portion 702. The filter unit 76 removes cotton fibers from the washing liquid. The straight pipe portion 701 and the housing pipe portion 702 are integrally formed to constitute one pipe. The slightly rounded straight tube portion 701 includes a flat inner surface 772. The flat inner surface 772 11 201111580 extends from the middle of the straight pipe section to the downstream storage pipe section. A flat inner surface extending toward the riding portion 7G2 is formed along a flat inner surface extending through a horizontal plane (4) of the straight tube (four), and the light sensor η is used for light emission and light receiving the inner surface 772 to prevent light. The unnecessary refraction of the infrared light used by the sensor 72. The straight tube 卩7G1 is formed with a pair of through holes 773. The through hole 773 is inserted with the electrode sensor 73. The electrode portion of the electrode sensor 73 protrudes from The straight tube portion 7〇ι is 'in contact with the washing tube in which the straight tube (4) 1 is covered. The first opening portion 774 connected to the drain line 74 is formed under the inner space of the housing tube portion 702, and is connected to the circulation. The second opening portion 77 of the suction port of the cymbal is attached. The second opening 774 and the second opening 771 are provided on the surface facing the through hole 773 of the straight tube portion 〇1. The second opening portion 774 The connection portion connected to the drain line 74. The second opening portion 771 is a connection portion that is connected to the circulation pump 71. The filter portion 76 has a mesh-shaped filter 776 and a cover portion connected to the filter 776. 704. The cover portion 704 is sealingly connected to the opening end portion of the receiving tube portion 7〇2" The filter 776 is formed to be capable of removing cotton fibers. The cover portion 704 includes a take-up portion 705. The take-up portion 705 extends outward from the outer surface of the cover portion 7〇4 along the axis of the storage tube portion 702. The filter portion 76 is The accommodating pipe portion 702 is detachably attached to the accommodating pipe portion 702. Therefore, the user can easily detach the filter portion 76 from the accommodating pipe portion 702 by the grip portion 7〇5. Fig. 3 is a plan view of the drain control unit 7. Fig. 4 is a drainage control Front view of the syllabary 7. Fig. 5 is a side view of the drainage control unit 7 viewed from the side of the circulation pump 71. Fig. 6 is a side view of the drainage control unit 7 viewed from the side of the electrode sensor 73. The first line 51 is partially shown in Fig. 3, Fig. 5, and Fig. 6. The washing liquid flows into the drain control unit 7 through the first line 51 through the water tank 31. The light sensor 72 senses the inflow to the drain. The turbidity of the washing liquid of the control unit 7. Fig. 7 shows the photo sensor 72 attached to the straight tube portion 701 of the casing 70 of the drainage control unit 7. Fig. 8 is a longitudinal sectional view of the photo sensor 72 (8th (a)), front view (8th (b)), right side (8th (C)), left side (8th (d)) Plan view (Fig. 8(e)). Fig. 9 is a longitudinal view (Fig. 9(a)), a front view (Fig. 9(b)), and a right side of the support body of the photo sensor 72. Fig. 9(C), left side view (9th (d)), plan view (9th (e)) and bottom view (Fig. 9(1)). Photosensor 72 includes: infrared light The light-emitting element 721 and the light-receiving element 722 that receives the infrared light emitted from the light-emitting element 721. The light-emitting element 721 and the light-receiving element 722 disposed outside the straight tube portion 701 are opposed to each other at the light-emitting element 721 and the light-receiving element 722. A light path that forms infrared light. The straight tube portion 701 is formed of a material that transmits infrared light. The infrared ray from the illuminating element 721 passes through the washing liquid filled in the space surrounded by the wall portion of the straight tube portion 701. When the turbidity of the washing liquid is large, the amount of infrared light reaching the light receiving element 722 becomes small. On the other hand, when the turbidity of the washing liquid is small, the amount of infrared light reaching the light receiving element 722 becomes large. Moreover, the photo sensor 72 functions as a turbidity sensor for sensing the turbidity of the washing liquid. The photo sensor 72 further has a support 723 for holding the light-emitting element 721 and the light-receiving element 722. Support 723 with a slightly U-shaped cross section 13 201111580 includes: a first support portion 724 for supporting the light-emitting element 721, a support 725 for supporting the light-receiving element 722, and a support portion 725 for the reading portion 724 Bridge portion 726. The bridge portion is held at a position where the light-emitting elements are cut and received by light 4722. The bridge portion (10) on the straight pipe portion 7〇1 extends at a right angle to the axis of the straight pipe portion 7〇1. In addition to the light-emitting element 721, the first support portion 724 is also disposed so that infrared light is emitted from the light-emitting element 7 in the core circuit board 727 support portion 725 except for the light-receiving element 722, and is also configured to be received by the light-receiving element 722. A circuit board 728 that generates a voltage signal by the amount of infrared light. Further, the photo sensor 72 includes an electric wire 729 for supplying electric power to the circuit boards 727, 728. The long-axis direction of the thin-plate-shaped circuit boards 727 and 728 (see FIGS. 7 and 8) extends in the vertical direction. The first support portion 724 has an inner side surface 241 facing the second support portion 725. The inner side surface 241 includes a lens portion 2 ι of the light-emitting element 721. The infrared ray emitted from the illuminating element 721 passes through the lens portion 211 and faces the second support portion 725. The lens portion 211 is slightly raised relative to other portions of the inner side surface 241. The second rib 242 is formed along the edge extending inward and downward toward the inner side surface 241. The first rib 242 protrudes from the inner side surface 241 to the inner side (the direction of the central axis of the straight tube portion 7〇1). The second support portion 725 has an inner side surface 251 facing the first support portion 724. The inner side surface 251 includes a lens portion 221 of the light receiving element 722. The infrared ray emitted from the illuminating element 721 passes through the lens portion 221 and reaches the light receiving element 722. The lens portion 221 is slightly raised relative to other portions of the inner side surface 251. The second rib 252 is formed along the edge extending in the upper direction toward the inner side surface 251. The second rib 252 protrudes from the inner side surface 251 to the inner side (the center axis of the straight pipe portion 7〇1 is 201111580). The outer surface of the wall portion of the straight tube portion 701 forming the flat inner surface 772 is also shaped. Therefore, the infrared light emitted by the light-emitting element 721 is not unnecessarily refracted by the two walls. The support body 723 is externally fitted to the straight tube portion 701. The light-emitting element 721 emits infrared light from the outside of the straight tube portion 7〇1. The light receiving element 722 receives infrared light outside the straight tube portion 7〇1. When the support body 723 is fitted into the straight tube portion 7G1, the second rib 242 of the second support portion 724 and the second rib 252 of the second support portion 725 abut against the flat outer surface of the straight tube portion 7〇1. The first rib 242 and the second rib 252 are separated from the inner side surface 24 251 of the first support portion 724 and the second support portion 725 by the flat portion. As a result, damage to the lens portions 211 and 21 and the straight tube portion 701 caused by the fitting of the support 723 and the straight tube portion 701 can be suppressed. Therefore, the pressure (fitting force) between the ribs 242, 252 and the outer surface of the straight pipe portion 701 can be set high. Moreover, the support body 723 can be firmly mounted to the straight tube portion 701. The central portion of the bridge portion 726 of the support body 723 is formed with an annular receiving wall 261 extending in the vertical direction. The annular receiving wall 261 is formed with a receiving plate 262 that forms an upper surface of the bridging portion 726 and a cylindrical receiving space 263. The carrier plate 262 is formed with a through hole 264. The through hole 264 is in communication with the accommodating space 263. The straight pipe portion 701 > has a cylindrical protruding portion 265 that extends upward. When the fitting of the support body 723 and the straight tube portion 701 is completed, the protruding portion 265 is inserted into the accommodating space 263' and the upper surface of the protruding portion 265 abuts against the underside of the receiving plate 262. The protruding portion 265 is formed with a screw hole extending downwardly and inserted into the through hole 264 of the receiving plate 262, and a screw hole of the protruding portion 265 is screwed. Further, the support body 723 is firmly fixed to the straight tube portion 701. The receiving plate 262 spanning the upper surface of the light-emitting element 721 and the light-receiving element 722 can receive falling objects such as dust or water droplets facing the portion of the straight tube portion 7〇 to which the cutting body (2) is attached. Refer again to ',,, and 2 to 6 pictures. The relative light sensor 72 is disposed on the sub-side and the sub-side drain valve 75. (4) The drain line μ is connected to the drain control unit = the casing 70 is filled with the drain valve 75, and the straight pipe portion is covered with Receive two. [The wash in WG2 is drained to the outside through the drain line %. The connection position between the drainage official road 74 and the casing 7G can be used as the base end of the storage pipe portion (four). As a result, the liquid flow of the washing liquid which is reversed when the circulating fruit 71 is actuated is generated in the vicinity of the connecting portion of the accommodating pipe portion and the accommodating pipe portion (10) and the straight pipe portion 7G1. The electrode sensing 173 is at the connection position (4) « near the downstream side of the ratio line 74 and the housing tube portion 7〇2. The electrode sensor Μ is disposed closer to the downstream side than the light sensitivity = 72. Light sensing (4) can be used as a function to sense the turbidity sensor of liquid turbidity. The electrode sensor 73 can function as a conductive sensor for sensing the "liquid conductivity". The electrode sensor 73 has a pair of electrodes disposed on the downstream side 1 of the terminal plate 731; 32. The μ 2 side two-member sub-boards 731 and m are connected to each other and supply a high-frequency AC voltage to the terminal plates 731 and 732. The pressure and the amplitude are not particularly limited as long as they can measure the conductivity of the cleaning liquid. Schematic diagram of the H-terminal board 731. The i-th (a)_sub-board 731 =.: (the front view of the _ terminal board 731. and the second = further, the downstream of the description of the second figure to the sixth figure The plate can be formed in the same shape and size as the terminal plate 731. 201111580, the rafter plate 731 is formed of i metal plates. The terminal plate claws constitute a flexure structure. The flexure curve 734 extending in the up and down direction is a boundary, and the terminal plate The other edge 4735 736 is deflected in the same direction. Therefore, the terminal plate 731 has high rigidity with respect to the bending moment about the axis of the transverse rib 734. The upper portion of the terminal plate 731 is formed with a connection portion 737 connected to the electric wire 733. On the opposite side of the flexing direction of the terminal plate 731 and the edge portions 735, 736 A thick plate portion 738 having a disk shape and a cylindrical electrode portion are formed on the surface. The terminal plate 73 is connected to the base end portion of the electrode portion by a thick portion 738. (10) 371 is fitted to the base end of the electrode portion 739. The electrode portion 739 is inserted into the straight tube portion 7_through hole 773 (see FIG. 2) formed in the casing 7 of the drain control unit 7. The terminal plate 731 is formed in a pair of through holes 31. One of the through holes The 〇 〇 is located above the electrode portion 739. The other through hole 31 _ is located below the electrode portion 739. The pair of through holes 31 〇 and the electrode portion 739 are aligned in the vertical direction. The line connecting the center points of the through holes 31 is parallel. The through hole 310 is inserted into a fixing tool called a bolt. The through hole 310 is a function of the terminal plate 73i attached to the fixing portion on the outer surface of the straight tube portion 7. The fixing device is crimped to the outer surface of the straight tube portion 701 by the terminal plate 731, and the ring 371 attached to the base end portion of the electrode portion 739 is compressed. The recovery force of the ring 37 is inserted into the through hole 310. The fixture causes the terminal plate 73 to generate a bending moment. The left and right edges of the terminal plate 731 The bending is performed along a deflection curve extending in the direction in which the pair of through holes 31 are aligned, whereby the terminal plate 731 has high rigidity against the bending moment. Therefore, the terminal plate 731 is firmly cracked in the straight pipe portion 17 201111580 7〇 As a result, the ring 371 disposed at the base end portion of the electrode portion 739 is strongly compressed and exhibits high sealing performance. Further, the through hole 773' formed in the straight tube portion 701 can be appropriately suppressed from being washed. Further, in the present embodiment, the wraparound 734 is orthogonal to the axis of the bending moment, but the angle of intersection of the burnt curve 734 and the axis of the bending moment is particularly limited. In the present embodiment, the through hole 310 is used as the fixing portion. However, other fixing methods may be used instead, and for example, a fixing means for crimping the terminal plate 731 to the outer wall of the straight tube portion 701 using a jig may be used. The ankle ring exerts sufficient force of the sealing function to crimp the terminal plate 731 to the outer wall of the straight pipe portion 7〇1. Further, when the jig is used, the portion of the terminal plate 731 held by the jig is used as a fixing portion. Fig. 11 is a cross-sectional view of the straight pipe portion 7〇1 to which the terminal plates 731 and 732 are attached. Fig. 11(a) is a cross-sectional view showing the vicinity of the terminal plate 731 and the electrode portion 739 on the upstream side. The u-th (b) is a cross-sectional view of the terminal plate 732 and the electrode portion 739 located on the downstream side. The electrode portion 739 which protrudes from the flat inner surface 772 of the straight tube portion 701 and protrudes inside the straight tube portion 7〇1 is in contact with the washing liquid coated in the straight tube portion 7〇1. A high-frequency AC voltage is applied to the terminal plates 731 and 732 through the electric wire 733, and the conductivity (impedance) of the washing liquid existing between the pair of electrode portions 739 is measured. Fig. 12 schematically shows the flow of the washing liquid around the electrode portion 739. Further, in Fig. 12, the upstream electrode portion is given the reference numeral 739a, and the downstream electrode portion is attached with the reference numeral 73%. As shown in Fig. 12, the pair of electrode portions 739a and 739b are arranged side by side in the longitudinal direction of the straight tube portion 701. The plane defined by the axes of the pair of electrode portions 739a, 739b is substantially parallel to the axis of the straight tube portion 7〇1. The upstream electrode portion 73 knows that the washing liquid flowing along the axis of the straight pipe portion 701 is branched into the upper and lower directions. Therefore, the flow rate of the washing liquid that crosses the plane 会 is reduced. As a result, in the space between the electrode portions 739a and 739b for measuring the conductivity of the washing liquid (for example, a space of 15 mm or more and 30 mm or less), the flow enthalpy of the washing liquid is lowered. Moreover, the flow of the washing liquid suitable for the measurement of the conductivity is obtained. Further, as shown in Fig. 12, the plane P including the axes of the pair of electrode portions 739a and 739b is a horizontal plane. The pair of electrode portions 739a, 739b and preferably do not cross the upper portion of the inner space of the straight pipe portion 701 (the drainage control unit 7 may be designed to have a space for air to remain (for example, the upper side of the inner space of the straight pipe portion 7〇1) The area of 1/S)) and the lower part of the inner space of the straight pipe portion 701 (the drainage control unit 7 may be designed to have a space for depositing dirt components (for example, an area of 1/5 of the inner side of the straight pipe portion 701) ). As a result, the entire surface of the protruding portions of the electrode portions 739a and 739b is in contact with the washing liquid in the straight tube portion 701. Therefore, the influence on the measurement of the conductivity of the air in the straight tube portion 701 can be suppressed. Further, when the electrode portions 739a and 739b protrude in the region of the upper side 4/5 of the internal space of the straight tube portion 7〇1, the influence on the measurement of the conductivity of the dirt component deposited in the straight tube portion 701 can be suppressed. Fig. 13 schematically shows the flow of the washing liquid around the photo sensor 72 and the electrode sensor 73. Fig. 13 shows the optical path 250 of the infrared light between the light-emitting element 721 and the light-receiving element 722 of the photo sensor 72 in the seventh to ninth embodiments. Further, similarly to Fig. 12, reference numeral 739a is attached to the electrode portion disposed on the upstream side, and reference numeral 739b is attached to the electrode portion disposed on the downstream side. 19 201 Π 1580 In order to prevent unnecessary refraction of the infrared ray forming the optical path 250, the upstream side end portion 277 formed on the flat inner surface 772 of the inner wall surface of the straight tube portion 701 is embossed by the other inner wall surface. Therefore, the upstream side end portion 277 disturbs the flow of the washing liquid. Therefore, in order to adjust the flow of the washing liquid until reaching the optical path 25?, the upstream end portion 277 is preferably formed at a position relatively far from the upstream side with respect to the optical path 250. At this time, the washing liquid that crosses the optical path 250 becomes a liquid flow suitable for measuring the turbidity of the washing liquid determined based on the amount of infrared light reaching the light receiving element 722 of the photo sensor 72 of the seventh to ninth drawings. . The infrared light from the light sensor 72 does not have any effect on the flow of the wash liquor. Therefore, the flow of the rectified washing liquid reaches the electrode portion 739a, 73%. As explained in Fig. 12, a part of the liquid flow parallel to the axial direction of the straight pipe portion 701 is branched upward and downward by the upstream electrode portion 739a. As a result, the flow of the washing liquid is disturbed. The disturbance of the liquid flow of the washing liquid caused by the electrode portion 739a is caused to occur closer to the downstream side than the photo sensor 72 described in connection with Figs. 7 to 9, so that the photo sensor 72 is hardly turbid. The degree of measurement has an impact. As will be explained with reference to Fig. 12, the plane P defined by the axes of the electrode portions 7393, 7391) is substantially parallel to the axis of the straight tube portion 701. Therefore, for example, when the washing liquid is reversely flowed in the straight pipe portion 701 (the direction from the straight pipe portion 7〇1 toward the discharge port 311 of the water tank) (the first drawing), the electrode portion 73% causes the washing liquid to Since the liquid flow is branched upward and downward, the electrode portion 739a overlaps with the electrode portion 739b in the liquid flow direction of the washing liquid, so that the liquid flow of the washing liquid is not excessively disturbed. Therefore, even if the washing liquid is reversely flowed, The turbidity of the washing liquid passing through the optical path 250 can be sensed with higher precision. 20 201111580 In the lower edge 392 which defines the boundary between the upper side of the flat inner surface 772 and the lower edge 392 which defines the boundary of the lower side of the flat inner surface 772, The tube portion 7〇1 is formed into a concave profile shape (see Fig. 7). In the portion constituting the cross-sectional contour shape of the buckling, the liquid flow of the washing liquid is more likely to be retained than the other portions. As shown in the figure, the electrode portions 739a, 739b are disposed such that a portion of the cross section of the electrode portions 739a, 739b enters the flat inner surface 772. The washing liquid is particularly easy in the vicinity of the upper edge 391 held by the electrode portions 739a, 739b. Retention, so it is suitable for the determination of the washing liquid guide Further, the liquid flow of the low fluidity is further increased by the plane P defined between the electrode portions 739a and 739b and the upper edge 391. This makes it possible to further improve the measurement accuracy of the conductivity. 1 to 5, a circulating pump 71 is disposed downstream of the electrode sensor 73. A suction line 711 is disposed between the circulation pump 71 and the casing 70 of the drainage control unit 7. The suction line 711 includes: One end of the suction port connection of the circulation pump 71 and the other end connected to the second opening 771 formed in the casing 70 of the drainage control unit 7. The second line 52 extending from the discharge port of the circulation pump 71 is connected. In the inlet 312 formed in the water tank 31. The plan view shows a plan view of the flow of the washing liquid from the electrode sensor 73 to the circulation pump 71. Referring to Fig. 14 together with reference to Fig. 1 and Fig. 2 Fig. 14 shows a suction line 711. As shown in Fig. 14, the electrode sensor 73 is disposed at a connection portion 771 of the suction line 711 and the drainage control unit 7 (shown in Fig. 2 as The second opening portion 771) is closer to the upstream side. Further, similarly to Fig. 12, the electrode portion disposed on the upstream side is attached with reference numeral 73. 9a, the electrode portion disposed on the downstream side is attached with the reference numeral 739b. The straight tube portion 701 and the housing tube portion 21 of the housing 70 constituting the drainage control unit 7 are formed into a straight flow path (8) in a plan view, which is straight. The pipe section is connected to the boundary of the accommodating pipe section. The pipe is connected to the straight pipe section 7〇1 and the accommodating pipe section 702. The suction pipe 7_ and the straight pipe section 7 (Π and containment) In the direction in which the direction of extension of the DC path formed by the pipe section is different (8), the structure of the drainage control unit shown in Fig. 4 extends in a right angle direction. The axis is washed along the straight line—the flow is changed by the county self-circulation system. The direction is to flow towards the suction bow i pipe 7 ι. The electrode sensor 73 protrudes from the inner side of the straight portion 7_ facing the connecting portion 771. Further, the "inside the connecting portion 771 (the inner surface)" means the tube portion along the straight tube portion. When the straight pipe portion 7〇1 and the accommodating pipe are separated from each other, the long-direction direction axis of the 702 is present on the inner surface of the position farther from the connecting portion ,, and is the soil point of the suction pipe 711, for example, The inner surface of the storage tube portion 702 and/or the straight tube portion 701 of the three inner diameters of the upstream and/or downstream phase difference suction line 711. . Further, based on the axis of the suction pipe 711, the inner diameter of the upstream illusion 夂 / or the downstream phase difference attraction official road 711 is 3. 5 times the length of the accommodating tube 2 and/or the inner surface of the straight tube portion, more preferably means the bottom of the suction line 711, and the inner diameter of the upstream and/or downstream phase difference suction line 711 The inner surface area of the three pieces '· , the tube portion 702 and/or the straight tube portion 7G1. Electric eel. In the valley of the length, the electrode portions 739a, 739b of the 冤槌 sensor 73 protrude from the inner surface region. Fig. 14 shows an arbitrary point P1 across the technical path in the vicinity of the electrode sensor 73. The point P1 is an arbitrary point away from the position of the connecting portion 771 (i.e., in the vicinity of the surface opposite to the connecting portion 771). The flow of the washing liquid in the direction of the base end of the 710 〇, 739b toward the front end portion will be generated by the action of 2011 11580. Therefore, by disposing the electrode sensor 73 at a position opposed to the connecting portion 771, the removal of the cotton fiber stuck in the electrode sensor 73 can be promoted. As described above, the electrode portions 739a and 739b form the projections in the straight tube portion 701. Therefore, the cotton fibers contained in the washing liquid flowing into the control unit 7 are easily caught on the electrode portions 739a and 73b. However, by the flow force VI, the cotton fibers stuck on the electrode portions 739a, 739b are relatively easily removed by the electrode portions 739a, 739b. Further, as shown in Fig. 2, a portion of the filter portion 76 (see Fig. 1) accommodated in the housing tube portion 702 exists between the electrode sensor 73 and the connection portion 771. In Fig. 14, the filter portion 76 is schematically shown in the mesh region. The washing liquid passes through the electrode sensor 73 existing at the upstream position of the filter portion 76, and passes through the filter portion disposed in the housing tube portion 702 before reaching the suction line 711 existing at a position downstream of the filter portion 76. 76. Therefore, the cotton fibers are collected by the filter portion 76 after being removed by the electrode portions 739a and 739b. Further, the filter unit 76 has a function of resisting the flow of the washing liquid. Therefore, after the circulation of the pump unit 71 is stopped, the flow of the washing liquid around the electrode portion can be rapidly lowered. Fig. 15 is a view for explaining the use of the circulation pump 71 and the drain valve 75 to remove cotton fibers. Fig. 15(a) is a plan view schematically showing the flow of the washing liquid from the electrode sensor 73 to the circulation pump 71. Fig. 15(b) is a plan view schematically showing the flow of the liquid from the electrode sensor 73 to the drain valve 75. Refer to Figure 1 together with Figure 15. Further, Fig. 15 shows a suction line 711 which forms a flow path to the circulation pump 71 and a drain line 74 which forms a flow path to the drain valve 75. Further, similarly to Fig. 12, the upstream electrode portion is attached with the reference numeral 739a, and the downstream electrode portion is indicated by the reference numeral 739b. Further, the 15th (a) diagram is the same as the pattern diagram shown in Fig. 14, which is used to display the comparison of the flow patterns of the washing liquid 23 201111580 shown in Fig. 15(b). As shown in Fig. 15(a), the electrode sensor 73 is preferably disposed downstream of the connection portion 774 (first opening portion 774) of the drain line 74, and is connected to the connection portion 771 of the suction line 711. The (second opening portion 771) is disposed upstream. With such a configuration of the electrode sensor 73, in the portion of the pipe in which the electrode portions 739a, 739b protrude, when the drain valve 75 is opened, as shown in Fig. 15(b), a ring of pain occurs. 71 The flow of the reversed wash liquor when it is actuated. Further, the cotton fibers stuck in the electrode portions 739a, 739b are easily removed by the electrode portions 739a, 739b. Fig. 16 shows the circulation pump 71. Fig. 16(a) is a cross-sectional view of the circulation pump 71. Figure 16(b) is a plan view of the circulation pump 71. Fig. 16(c) is a view of the circulating pump 71 viewed from the suction port side. The circulation pump 71 includes a pump casing 713 which forms an outer wall of the circulation pump 71. The pump casing 713 is internally provided with a bearing partition 714. The bearing partition 714 divides the inside of the pump casing 713 into two spaces. A space is connected to the suction port 71$, and a motor 718 is disposed in a space in which the turbine 717 1 is equipped with a (four) wheel 717. Motor 718 is suitable for use, for example, with a DC brushless motor. The shaft 719 of the motor 718 is transverse to the bearing partition 714 and extends toward the space in which the 717 is arranged. The turbine 717, which has been integrally formed with the bearing partition 714, is supported by the rotating shaft 719. Driven by the motor 718, the turbine bore rotates with the bearing spacer 4. The pump casing is formed with a suction port 715 connected to the suction pipe, and a discharge σ7ΐ6 connected to the second pipe 52. The attraction 〇715 and the spit out are connected to the space equipped with the turbine 717. C: 24 201111580 The mount 131 protrudes in the radial direction from the outer surface of the pump casing 713. The mount 131 of the circulation pump 71 shown in Fig. 16 includes three C-shaped attachment pieces 132 that protrude largely toward the outside. The mounting piece 132 is fixed to the base portion of the base 712 (see Fig. 1) by bolts. Fig. 17 shows the structure of the connection portion between the water tank 31 and the second duct 52. Fig. 17(a) is a plan view of the catheter constituting the connecting portion. Figure 17(b) is a cross-sectional view of the catheter shown in Figure 17(a). Fig. 17(C) is a longitudinal sectional view of the catheter shown in Fig. 17(a). The inlet 312 of the water tank 31 is formed by an annular rib 121 that protrudes upward from the outer wall of the water tank 31. An ankle ring 122 is disposed along the inner circumferential surface of the annular rib 121. The ankle ring 122 is pushed by the duct groove 520. The duct groove 520 has a body portion 521 that is bent in an L shape. The main body portion 521 includes a duct 522 connected to the second duct 52 and a lower duct 523 extending from the duct 522 toward the inflow port 312. The front end of the lower half pipe 523 has an annular projection 525 which is formed to complement the outer peripheral contour of the opening of the inflow port 312. The inside of the annular projection 525 is provided with a pressing wall 123. The pressing wall 123 is curved downward in a curved shape from a substantially central position of the inner space of the annular projection 525, and has a cross section toward the center of rotation of the rotary drum 32. Both ends of the pressing wall 123 are connected to the inner wall surface of the annular projection 525. An annulus 122 is disposed between the annular projection 525 and the annular rib 121. The ankle ring 122 is compressed between the annular projection 525 and the annular rib 121, and functions as a sealing member. The lower half pipe 523 of the duct groove 520 is adjacent to the annular rib 121, and is fixed to the wall portion of the water tank 31 by using the fixture 125 (in FIG. 17, the pedestal is represented by the fixture 125). Thick part 124. The conduit groove 520 further includes a cover 524. The cover 524 and the lower half of the line 523 are bent by the flow path formed by the duct 522 to form a flow path toward the inflow port 312. By the operation of the circulation pump 71, the washing liquid from the second line 52 through the duct groove 520' flows into the inflow port 312. Further, the circulation pump 71 is rotated at, for example, a rotation number of 3,500 rpm. A rotating drum 32 is disposed inside the water tank 31. A bearing wall 126 is disposed between the upper surface of the rotary drum 32 and the inflow port 312. The retaining wall 126 is supported by a connecting wall 127 that is coupled to the outer wall of the sink 31. The retaining wall 126 forms a narrow flow path with the extruded wall 123. This narrow flow path functions as an ejection port 129 for injecting the washing liquid into the washing tub 3. The washing liquid passing through the injection port 129 formed by the retaining wall 126 and the pressing wall 123 is then cut by a portion 1 & 1 formed on the outer surface of the water tank 31. < The flow path 281 between the end wall 128 and the front end wall 321 of the rotary drum 32 is supplied to the inside of the rotary drum 32. The front end wall 128 cooperates with the pressing wall 123 to urge the annulus 122. The injection port 129 is formed separately from the rotary drum 32. The laundry in the rotary drum 32 does not contact the ejection opening 129. Therefore, the ejection opening 129 hardly adversely affects the washing step, the rinsing step or the drying step. The ejector 129 does not damage the laundry, damage it, and hardly damages the appearance of the knee washing. Further, the flow path 281 downstream of the injection port 129 is formed by the front end wall 128 of the water tank 31 and the front end wall 321 of the rotary drum 32, so that an additional structure for preventing water leakage is not required. In the configuration shown in Fig. 17, only the ankle ring 122 is used as the sealing member.
26 201111580 水槽31之前端壁128及旋轉滾筒32之前端壁321形成環 狀出口部282。通過流路281之洗滌液通過環狀之出口部 282,並且朝旋轉滾筒32之旋轉中心軸噴射。通過出口部282 噴射之洗滌液可有效率地喷射到旋轉滾筒3 2之内側旋轉區 域。而且，與收容到旋轉滾筒32内之洗滌物的量無關，洗 滌液可有效率地供給到洗滌物。 水槽31之前端壁128之内面（形成流路281之面）包含傾 斜面283與彎曲面284。使流路281之截面積朝下游漸漸減少 之傾斜面283使通過流路281之洗滌液之流速漸漸增加。因 此，通過流路281之洗滌液會一邊加速一變朝向彎曲面 284 ^彎曲面284係使洗滌液之液流方向朝旋轉滾筒32之底 部之方向產生變化。因此，由出口部282喷射之洗滌液會朝 向旋轉滾筒32之底部。其結果是，洗滌液可有效率地供給 到洗滌物。 噴射口 129之開口涵括洗滌槽3之周方向之預定範圍。 連接壁127及承擋壁126係使喷射口 129朝旋轉中心軸方向 開口。連接壁127及承擂壁126幾乎不會擾亂流入到流入口 312之洗滌液，且導引到流路281。洗滌液朝周方向擴散到 噴射口 129，然後安定的流入流路281。然後，洗滌液進一 步朝周方向擴散並流動到環狀出口部282。因此，洗滌液會 由出口 ^^282全體噴射，與收容到旋轉滾筒32内之洗滌物的 量無關，而可安定的供給到洗滌物。 導管槽溝520之蓋524係使用簡單的安裝構造而形成朝 向流入口 312之流路。適當地制定覆蓋流入口 312之蓋524的 27 201111580 形狀以及尺寸、連接壁127之形狀以及尺寸、及承擋壁126 之形狀以及尺寸，藉此可得到適切的洗滌液往旋轉滾筒32 内流入。藉由適當地制定蓋524、連接壁127及承擋壁126之 設計參數，可適切地決定由喷射口 129噴射之洗滌液之流 寬、流厚及流速。而且，與收容到旋轉滾筒32内之洗滌物 的量無關’洗務液可有效率地供給到洗條物。 第Π圖所示之導管槽溝520之蓋524之安裝構造或連接 壁127及承擋壁126之非常簡單的構造對於抑制漏水以及製 造成本之低廉化也有所貢獻。 如上所述，導管槽溝52〇係在下半管路523與蓋524形成 朝向流入口312之流路。如第1圖所示，導管槽溝52〇形成之 流路係沿著水槽31之外面延伸。因此，使用下半管路523與 蓋524，在水槽31與筐體2之間之小空隙形成具有矩形截面 之平坦管路。平坦管路係用以規定適合噴射口 129之形狀、 大小之"IL寬以及流厚之洗蘇液之液流。通過平坦管路之洗 條液會被整流而朝向喷射口 129。 旋轉滾筒32之前端壁321上形成複數之突條322。突條 322係朝旋轉滾筒32之前端壁321之周方向在預定長度之範 圍内延伸。複數之突條322之周方向的位置及/或半徑方向 之位置亦可互為不同。突條322可將喷射口 129之下游之流 路281之截面積局部縮小。在出口部282附近利用突條322縮 小流路截面積之情況，與在離開出口部282之處利用突條 322縮小流路戴面積之情況中，由出口部282噴出之洗滌液 之移動軌跡不同。因此，由出口部282排出之洗務液會振散26 201111580 The front end wall 128 of the water tank 31 and the front end wall 321 of the rotary drum 32 form a loop-shaped outlet portion 282. The washing liquid passing through the flow path 281 passes through the annular outlet portion 282 and is ejected toward the central axis of rotation of the rotary drum 32. The washing liquid sprayed through the outlet portion 282 can be efficiently injected into the inner rotation region of the rotary drum 3 2 . Further, the washing liquid can be efficiently supplied to the laundry irrespective of the amount of the laundry accommodated in the rotary drum 32. The inner surface of the front end wall 128 of the water tank 31 (the surface on which the flow path 281 is formed) includes a sloped surface 283 and a curved surface 284. The inclined surface 283 which gradually reduces the cross-sectional area of the flow path 281 toward the downstream gradually increases the flow rate of the washing liquid passing through the flow path 281. Therefore, the washing liquid passing through the flow path 281 is accelerated toward the curved surface 284. The curved surface 284 changes the direction of the flow of the washing liquid toward the bottom of the rotating drum 32. Therefore, the washing liquid sprayed from the outlet portion 282 is directed toward the bottom of the rotary drum 32. As a result, the washing liquid can be efficiently supplied to the laundry. The opening of the injection port 129 covers a predetermined range of the circumferential direction of the washing tub 3. The connecting wall 127 and the receiving wall 126 open the injection port 129 in the direction of the central axis of rotation. The connecting wall 127 and the bearing wall 126 hardly disturb the washing liquid flowing into the inflow port 312 and are guided to the flow path 281. The washing liquid is diffused in the circumferential direction to the injection port 129, and then settles into the flow path 281. Then, the washing liquid is further diffused in the circumferential direction and flows to the annular outlet portion 282. Therefore, the washing liquid is ejected from the entire outlet 258, irrespective of the amount of the laundry accommodated in the rotary drum 32, and can be stably supplied to the laundry. The cover 524 of the conduit groove 520 forms a flow path toward the inflow opening 312 using a simple mounting configuration. The shape and size of the cover 21, which covers the cover 524 of the inflow port 312, the shape and size of the connecting wall 127, and the shape and size of the retaining wall 126 are appropriately formed, whereby the appropriate washing liquid can be supplied into the rotary drum 32. By appropriately setting the design parameters of the cover 524, the connecting wall 127, and the retaining wall 126, the flow width, flow thickness, and flow rate of the washing liquid sprayed from the injection port 129 can be appropriately determined. Further, regardless of the amount of laundry accommodated in the rotary drum 32, the washing liquid can be efficiently supplied to the laundry. The mounting structure of the cover 524 of the duct groove 520 shown in the first drawing or the very simple structure of the connecting wall 127 and the retaining wall 126 contributes to the suppression of water leakage and the reduction in cost. As described above, the duct groove 52 is formed in the lower half line 523 and the cover 524 to form a flow path toward the inflow port 312. As shown in Fig. 1, the flow path formed by the duct groove 52 is extended along the outer surface of the water tank 31. Therefore, the lower half pipe 523 and the cover 524 are used, and a small gap between the water tank 31 and the casing 2 forms a flat pipe having a rectangular cross section. The flat piping is used to define a flow of the washing liquid suitable for the shape, size, and width of the injection port 129. The strip of liquid passing through the flat line is rectified toward the ejection port 129. A plurality of ridges 322 are formed on the front end wall 321 of the rotating drum 32. The ridge 322 extends in a circumferential direction of the front end wall 321 of the rotary drum 32 within a predetermined length. The position of the plurality of ribs 322 in the circumferential direction and/or the position in the radial direction may be different from each other. The rib 322 can partially reduce the cross-sectional area of the flow path 281 downstream of the ejection opening 129. In the vicinity of the outlet portion 282, the cross-sectional area of the flow path is narrowed by the ridge 322, and in the case where the flow path wearing area is narrowed by the rib 322 at the exit portion 282, the movement trajectory of the washing liquid ejected from the outlet portion 282 is different. . Therefore, the washing liquid discharged from the outlet portion 282 will scatter
C 28 201111580 到方疋轉滾筒32内之廣大㈣’達成以較高效率將洗蘇液供 給到洗滌物。 突條322之形狀並不限定於第17圖所示者。例如，突條 322亦可為波型形狀，亦可為葉片型形狀。亦可採用可使由 出口部282排出之洗滌液之移動軌跡變動之任意形狀的突 條322。又，亦可採用可使由出口部282排出之洗滌液之移 動轨跡變動之任意形狀之突條322的配置。 承播壁126與旋轉滚筒32之間形成空隙施。當循環栗 71以低速運轉時(例如，_啊），洗舰會由喷射口 129 流入到空隙266。流入到空隙266之洗務液會在旋轉滚⑽ 與水槽31之間的空間傳送朝向水槽31之排出口州。 第18圖係例示控制電路部81之機能構成。 控制電路。卩81包含：演算部813、判定部川及記憶部 816。例如’使用者操作操作面板8時演算部川使用控制 電路481具有之4時$及健存於記憶部㈣之程式算出洗 衣機1要執行使用者指定之洗_式之各步驟中的哪個步 驟。演算部813根據算出之結果，使判定部814判定執行中 之步驟中是否預定之動作為必要。再者，演算部813算出之 結果亦可暫時地儲存於記憶物6。例如當演算部⑴將 從沖洗步驟開始時之經過時間相關之資訊輸出到判定部 814時，判定部814會判定從沖洗步驟開始時是否已經過預 定之時間。若已經過預定之時間，判定部814則將用以開啟 排水闊75之控制信號朝排水閥Μ發送。同樣地，供水系統* 之電磁閥或排水系統5之循環m根據來自演算部813之信 29 201111580 號，在洗滌模式之各步驟中執行預先訂定之動作。 判定部814自演算部813接收清洗步驟及/或沖洗步驟 之開始時刻、及/或、清洗步驟及/或沖洗步驟之經過時間的 資訊，將控制信號發送到循環泵71 ’使循環泵71在清洗步 驟及/或沖洗步驟之預定期間之期間内間歇地運轉。接收到 控制信號之循環泵71進行反覆運轉及停止之間歇動作。 第19圖係顯示循環泵71進行間歇動作期間之由光感測 器72發送之信號之圖表。第19(a)圖係顯示洗滌液之起泡大 時之來自光感測器72的信號。第19(b)圖係顯示當洗蘇液之 起泡小時之來自光感測器72之信號。第19圖中，左側之縱 軸係顯示循環系71之旋轉數，右側之縱軸係以位元表示來 自光感測器72之輸出。再者，圖表中，表示來自光感測器 72之輸出之各點為5個樣品之平均値。 •在說明第19圖所示之資料之前，說明來自光感測器72 之輸出變動的原理。洗滌液之濁度低時，光感測器72之受 光元件722相較於濁度高時受光較多。因此，當洗滌液之濁 度低時，相較於濁度高時，較多的電流會流向受光元件 722，電阻之電壓下降。該結果是，光感測器72之輸出會下 降。當洗滌液之濁度高時，光感測器72之受光元件722相較 於濁度低之情況，受光會較少。因此，當洗滌液之濁度高 時，相較於濁度低的情況，較少的電流會流向受光元件 722，電阻之電壓上升。該結果是，光感測器72之輸出會上 升。 說明第19圖所示之資料。如第19圖所示，光感測器72 30 201111580 之輸出會大略與循環泵71之間歇運動同步而變動。當循環 泵71之旋轉數增加時，光感測器72之輸出也會增加。當循 環泵71停止時，光感測器72之輸出會降低。由第19(a)圖與 第19(b)圖之比較可知，洗滌液之起泡較大時，光感測器72 之輸出變化的振幅會變大。洗滌液之泡會使來自光感測器 72之發光元件721的紅外光線散射，因此當泡多時’光感測 器72之輸出會變小。另一方面’當泡少時’光感測器72之 輸出會變大。循環泵71運轉時，藉由水流在直管部701内產 生很多泡。該結果是，在直管部7〇1内流動之泡會變得比較 多。在直管部701内流動之泡會使光感測器72之光線散射， 因此較少的電流會流動於受光元件722。如上所述’當較少 電流流動於受光元件722時，由於電阻之電壓會上升’因此 光感測器72之輸出會增大。另一方面，當循環泵71停止時， 洗滌液之流動會下降’因此直管部701内之泡會浮起到上 方。該結果是，使光感測器72之光線散射之泡量變少。因 此，較多的電流在受光元件722流動’電阻之電壓降低。而 且，光感測器72之輸出降低。如此’洗滌液之起泡程度會 與光感測器72之光線的散射量有直接關連，而定義為使光 感測器72之光線散射之泡量。 第18圖所示之演算部813係演算例如循環泵71在運轉 期間之光感測器72的輸出、及循環泵71在停止期間之光感 測器72之輸出的差（以下’稱為輸出差）。在此’循環泵71 運轉期間與停止期間亦可定義為「一運轉周期」。為了降低 光感測器72之輸出所含之雜訊的影響，亦可將在每一運轉 31 2〇1ιΠ58〇 周期所算出之輸出差予以平均化。判定部814亦可將例如對 於儲存於記憶部816之光感測器72之輸出差的臨界值、與演 算部813之演算結果相比較，判定洗滌液之起泡程度。藉由 對於業已平均化之輸出差之臨界值的比較，可降低雜訊對 於起泡之判定的影響。再者，演算部813進行之演算並非係 限定於算出循環泵71運轉期間之光感測器7 2之輸出與循環 泵71停止期間之光感測器72之輸出的差者。取而代之，亦 可使用可算出循環泵71之運轉開始時或者剛停止後之光感 測器72之輸出的變化率或光感測器72之輸出變動的大小之 其他演算。 控制電路部81具有之記憶部816亦可儲存例如使用作 為對光感測器72之輸出差之下限臨界值之第1臨界值、及使 用作為上限臨界值之第2臨界值。判定部814可由記憶部816 叫出第1臨界值及/或第2臨界值，比較演算部813所算出之 光感測器72之輸出差與第1臨界值及/或第2臨界值。當光感 測器7 2之輸出差在第1臨界值以下時，會將控制信號發送到 供水系統4，使在清洗步驟及/或沖洗步驟中供水時之供水 量，相較於光感測器72之輸出差大於第1臨界值時變得較 小。而且，不會供給較多不必要的水，可達成適當的節水。 光感測器72之輸出差在第2臨界值以上時，判定部814會對 供水系統4之電磁閥發送控制信號，使清洗步驟及/或沖洗 步驟中供水時之供水量，相較於光感測器72之輸出差小於 第2臨界值時變得較大。而且，洗滌槽3内之洗滌液的液位 會上升，在適當的起泡狀態下執行洗滌步驟及/或沖洗步 32 201111580 驟。 第2 0圖係顯示記憶部816具有之對於光感測器7 2之上 限臨界值及下限臨界值之資料構造的一例。與第18圖一併 參照第20圖，例示說明可因應洗劑之種類，使用不同之臨 界值，判定洗滌液之起泡的手法。 如第20圖所示，記憶部816係用以儲存每一洗劑種類相 對光感測器72之輸出差而異之上限臨界值及下限臨界值。 記憶部816進而預先儲存洗滌開始時之供水步驟中之每一 洗劑種類之電極感測器73之輸出及光感測器72之輸出之變 化的相關資料。自供水開始經過預定時間後，控制電路部 81對循環泵71發送控制信號，使循環泵71作動。循環泵71 作動期間，演算部813在每一預定時間使電極感測器73及光 感測器72之輸出記憶於記憶部816。判定部814比較預先儲 存於記憶部816之資料與由演算部813記憶之電極感測器73 及光感測器72之輸出，判定洗劑之種類。判定結果記憶於 記憶部816。但是，包含沸石之粉末洗劑與一般不包含沸石 之液體洗劑中，包含沸石之粉末洗劑由於白濁度較高，因 此亦可僅以光感測器72之輸出的比較，判別粉末洗劑與液 體洗劑。 例如，第20圖中以「Α1」所示之洗劑為粉末洗劑，以 「Α2」及「A3」所示之洗劑為液體洗劑。此時，對洗劑A1 分配之上限臨界值UL1宜設定為比分配到其他洗劑A2或A3 之上限臨界值UL2或UL3還大。判定部814判定使用之洗劑 為粉末洗劑時，判定部814會自記憶部816讀出上限臨界值 33 201111580 ULl，比較演算部813所演算之光感測器72之輸出差與上限 臨界值UL1。光感測器72之輸出差大於上限臨界值UL1時， 或在上限臨界值UL1以上時’將控制信號發送到供水系統4 之電磁閥。該結果是，可比其他洗劑節水來執行沖洗步驟。 因此，可對驗度較高且包含沸石之粉末洗劑，提供適當的 沖洗條件。 記憶部816進而亦可儲存對應於洗劑種類之清洗時 間。例如，相對於液體洗劑A2、A3 ’分配比粉末洗劑A1 較長的清洗時間。判定部814判定使用之洗劑為液體洗劑A 2 或A3時，演算部813讀出儲存於記憶部816之較長清洗時間 之資料，令滾筒式洗衣機1以較長的清洗時間洗滌洗滌物。 執行較長時間清洗步驟的結果是，即使是乳化力較小且洗 淨效果也較小之液體洗劑A2或A3，也可發揮足夠的洗淨效 果。 再者，判定部814亦可在判定使用之洗劑為粉末洗劑或 液體洗劑後，藉由光感測器72之輸出來判定洗劑液之起泡 程度。亦可採用將控制信號發送到供水系統4之電磁閥之時 序’以在判定為液體洗劑時，相較於判定為粉末洗劑，在 洗滌步驟及/或沖洗步驟中減少供水量。依據洗劑量，有時 候會有粉末洗劑與液體洗劑以光感測器7 2判定之起泡程度 為同程度之情況，但藉由上述之判定順序以及時序，及使 起泡程度為同程度亦可達成因應洗劑種類之節水。再者， 判定使用之洗劑為液體洗劑時，亦可執行比判定為粉末洗 劑時還長時間之清洗步驟。 34 C； 201111580 上述說明中，用以測定導電度之電極感測器73係例示 突出於流路中之感測器，但上述之原理不受限於此，亦可 適用於使用任一種必須與洗滌液直接接觸以感測洗滌液之 物性之感測器的洗衣機。 上述說明中，光感測器72係用以測定洗滌液之濁度， 但亦可使用作為其它之測定目的。上述之原理亦可適用於 用以感測髒汙成分之堆積之光感測器72、或可使用光感測 器72適當地測定之其他物性或環境變化。 上述說明中，使洗務液流動之流動裝置係例示泵，但 取而代之亦可使用配設在循環路或者流路中之螺槳等使洗 蘇液流動。 亦可利用因應電信號以開關排水管路74之任意裝置作 為排水裝置，以取代本實施形態中例示作為排水裝置之排 水閥。又，亦可使用因應電信號以開關供水管路41之任意 裝置作為供水裝置，以取代例示作為供水裝置之電磁閥。 上述之實施形態中，主要係包含具有以下構成之洗衣 機。 上述實施形態之一觀點之洗衣機的特徵在於：特徵在 於包含有：洗滌槽，係具有供洗滌液流入之流入口、及供 前述洗滌液排出之排出口者；管路，係連接於前述流入口 與前述排出口者；流動裝置，係使前述洗滌液通過該管路 而由前述排出口朝前述流入口流動者；光感測器，係檢測 通過前述管路内之洗滌液之光量者；及控制部，係根據前 述光感測器之檢測信號，控制洗滌動作者，其中前述光感 35 201111580 測器係用以檢測並輸出前述流動裝置運轉期間之第丨光量 與前述流動裝置停止期間之第2光量。 根據上述構成，在洗滌槽内起泡之洗滌液會由洗條槽 之排出口朝管路排出，ϋ且再次由洗條槽之流入口回到洗 滌槽内。在洗滌槽内產生之洗滌液中之泡即使在管路内也 不會立刻消失，且會對通過洗滌液之光量造成影響，因此 可藉由光感測器適當地測定洗滌液之起泡程度。光感測器 用以檢測流動骏置運轉期間之第1光量、與流動裝置停止期 間之第2光量，並且將對第丨光量及第2光量之檢測信號輸出 到控制部。控制部根據檢測信號判定起泡程度，並且控制 洗務動作°因此，控制部可不料到洗«中之泡消失即 可判定洗滌液之起泡程度。又，隨著判定時間的縮短，在 控制部進行判定期間，水會變得難以補給。而且，起泡之 判定變得難以”補給水的影響。而且，提供-種可快速 且正確地❹桃崎之祕贿之洗衣機。 泡程度並控制前逃㈣動作。'、4之差’判定前述起 根據上述構成’根據 述第2光量之檢測信號、^迷第1光量之檢測信號與對前 度，控制洗滌動作。因的丨差，控制部判定洗滌液之起泡程 雜的演算或信號處理。 可判定起泡程度，而不需要複 液之起泡程度。 因此’可更快逮且正確地感測洗滌 上述構成中，前述先 機且更具有往前述洗務槽供水 36 201111580 之供水裝置，且前述控制部具有用以記憶相對於前述差之 第1臨界值之記憶部，並且前述控制部係控制前述供水裝 置，使得當前述差在前述第1臨界值以下時，來自前述供水 裝置之供水量會變得比前述差大於前述第1臨界值時還小。 根據上述構成，當光感測器之檢測信號的差在記憶於 記憶部之第1臨界值以下時，控制部會控制供水裝置，並減 少來自供水裝置之供水量。光感測器之檢測信號的差變得 愈小，洗滌液之起泡程度則變得愈小。當洗滌液之起泡程 度小時，必要供水量則小。因此，當檢測信號之差在第1臨 界值以下時，藉由減少供水量，可抑制不必要的供水。而 且，可得到適當的節水效果。 上述構成中，前述記憶部宜更記憶有比前述第1臨界值 還大之第2臨界值，且前述控制部係控制前述供水裝置，使 得當前述差在前述第2臨界值以上時，來自前述供水裝置之 供水量會變得比前述差小於前述第2臨界值時還大。 根據上述構成 '當光感測益之檢測信號的差在記憶於 記憶部之第2臨界值以上時，控制部會控制供水裝置，並加 大來自供水裝置之供水量。光感測器之檢測信號之差變得 愈大，則洗滌液之起泡程度會變大。洗滌液之起泡程度大 時，必要供水量則大。因此，當檢測信號之差在第2臨界值 以上時，藉由使供水量增大，可視需要而大量地供水到洗 滌槽。而且，達成對洗滌物適合之洗滌動作。 上述構成中，前述記憶部宜記憶關於與前述洗滌液所 含之洗劑種類對應之前述光量的資料，且前述控制部將來 37 201111580 自前述光感測器之輪出 洗練所含之洗劑_ ：^1述資料比較’並判定前述 劑種類為粉末洗劑時^第2臨界值包含對應於前述洗 述洗劑種類為粉末洗_臨界值，且前述㈣部在判定前 置，使得«述差^、+前述控㈣會控㈣述供水裝 裝置之供水量會變得比I第3臨界值以上時，來自前述供水 根據上述構成，押Γ差小於前述第3臨界值時還大。 外，還狀洗料所::卩除了狀絲液之起泡程度之 含之洗劑種類為粉末=洗劑種類。控制部狀洗務液所 粉末洗所規定之第f ’且光感測器之檢測信號之差比 因此，可因應^_彳=值鱗，可晴A量的供水。 “的敍n ^了降低洗雜之驗及洗滌液中之 週虽地抑制洗滌物之損傷。 上述構成中，*、+ ，、 、 酊述洗滌動作宜包含用以清洗洗滌槽内 、3洗步驟，且前述控制部在根據來自前述光感 測器之輸出信號與·資料的比較 ，判定前述洗劑種類為 、、體先劑_ “述清洗步驟執行時間比判定前述洗劑種 類為前述液體洗如外之_時還長。 根據上述構成，控制部判定洗蘇液所含之洗劑種類為 液體洗劑時’可在較長清洗步m«物。因此，即使 係礼化力較低且洗淨效果較小之液體洗劑亦可發揮充分的 洗滌作用。 上述構成中’宜更包含一用以檢測前述洗滌液之導電 度並且將檢測信號輪出到前述控制部之導電感測器，前述 記憶部更進—牛b k 7δ己憶關於與前述洗滌液所含之洗劑種類對 38 201111580 應之前述洗滌液之導電度與前述光量之組合的資料，前述 控制部將來自前述導電感測器之輸出信號及來自前述光感 測器之輸出信號與前述資料比較，判定前述洗滌液所含之 洗劑種類。 根據上述構成，將記憶於記憶部之洗滌液之導電度與 光量之組合的相關資料與來自導電感測器及光感測器之檢 測信號進行比較之控制部除了可更正確地判定洗滌液之起 泡程度之外，還加進洗滌液之導電度，而可更正確地判定 洗滌液所含之洗劑種類。一般，使用同量之液體洗劑與粉 末洗劑時，由於粉末洗劑相較於液體洗劑，洗滌液的導電 度有變高的傾向，因此導電感測器之檢測信號之併用有助 於對於對洗劑種類之更正確的判定。 上述構成中，前述流動裝置宜進行反覆運轉與停止之 間歇動作，前述光感測器在前述流動裝置進行前述間歇動 作期間，輸出前述檢測信號，前述控制部將由前述流動裝 置之前述運轉與前述停止所構成之運轉周期中之前述檢測 信號的差予以平均化，並根據業經前述平均化之前述檢測 信號的前述差，判定前述洗蘇液之起泡程度。 根據上述構成，對第1光量之檢測信號與對第2光量之 檢測信號會反覆交互地輸出到控制部。控制部將檢測信號 之差平均化，並判定洗滌液之起泡程度。因此，檢測信號 所含之雜訊成分會相對變小，可提高對洗滌液之起泡程度 之判定的精度。 上述構成中，前述流動裝置與前述光感測器之間宜更 39 201111580 具有用以除去前述洗滌液所含之髒汙成分之過濾部。 根據上述構成，配置於流動裝置之上游之過濾器部對 於洗滌液之流動發揮抵抗的作用。由於過濾器部係位於光 感測器之下游，因此對於光感測器進行光量之檢測的影響 較小。因此，在流動裝置之運轉中，光感測器可適當地檢 測第1光量。又，流動裝置停止後，可比較早期地抑制洗滌 液之流動，因此光感測器可安定地檢測第2光量。因此，判 定部可更快速且以高精度判定起泡程度。 【圖式簡單說明】 第1圖係顯示本發明之一實施形態之滚筒式洗衣機之 概略構成圖。 第2(a)、（b)圖係顯示使用於第1圖所示之滾筒式洗衣機 之排水控制單元之筐體者。 第3圖係第1圖所示之滾筒式洗衣機之排水控制單元的 平面圖。 第4圖係第1圖所示之滚筒式洗衣機之排水控制單元的 正面圖。 第5圖係第1圖所示之滚筒式洗衣機之排水控制單元的 側面圖。 第6圖係由相反側觀察第5圖所示之排水控制單元的側 面圖。 第7圖係顯示使用於第3圖至第6圖所示之排水控制單 元之光感測器的安裝構造。 40 201111580 第8(a)〜(e)圖係顯示第7圖所示之光感測器。 第9(a)〜(f)圖係顯示第8圖所示之光感測器之托架之構 造。 第10 (a)、（b)圖係顯示使用於第3圖至第6圖所示之排水 控制單元之電極感測器。 第11(a)、（b)圖係顯示第1〇圖所示之電極感測器之安裝 構造。 第12圖係說明第u圖所示之電極感測器周圍之洗滌液 的流動。 弟13圖係說明由第7圖所示之光感測器到第11圖所示 之電極感測器之流路中之洗蘇液的流動。 第14圖係說明由第3圖至第6圖所示之排水控制單元之 電極感測器朝向循環泵之洗滌液的流動。 第15(a)、（b)圖係說明第3圖至第6圖所示之排水控制單 兀之循環泵之作動時及排水閥之作動時之電極感測器周圍 之洗蘇液的流動 第16(a)〜(c)圖係第3圖至第6圖所示之排水控制單元之 循壤栗的概略圖。 第17(a)〜(c)圖係說明第1圖所示之滾筒式洗衣機之水 槽之流入口周圍的構造。 第18圖係說明第1圖所示之滚筒式洗衣機之控制電路 部的機能構成。 第19 (a )、（ b )圖係顯示循環泵在間歇動作期間由光感測 器發送之信號之圖表。 41 201111580 第20圖係例示記憶部具有之對光感測器之上限臨界値 及下限臨界値之資料構造者。 【主要元件符號說明】 1.. .滾筒式洗衣機 121.. .環狀肋 122.. . Ο環 123.. .擠壓壁 124.. .較厚部 125.. .固定具 126.. .承擋壁 127.. .連接壁 128.. .前端壁 129.. .喷射口 131.. .安裝座 132.. .安裝片 2.. .筐體 211.. .透鏡部 221.. .透鏡部 241.. .内側面 242…第1肋 250.. .光路 251.. .内側面 252.. .第 2 肋 261.. .收容壁 262.. .承板 263···收容空間 264…貫通孔 265···突出部 266…空隙 277…上游側端部 281…流路 282···出口部 283…傾斜面 284.. .彎曲面 3.. .洗務槽 31…水槽 310.. .貫通孔 311.. .排出口 312·.·流入口 313.. .排氣口 32.. .旋轉滾筒 321.. .前端壁 322.. .突條 42 201111580 33.. .馬達 371.. .Ο 環 391.. .上緣 392.. .下緣 4.. .供水糸統 41.. .供水管路 42.. .洗劑收容部 5.. .排水系統 51.. .第1管路 52.. .第2管路 520.. .導管槽溝 521.. .本體部 522.. .導管 523…下半管路 524···蓋 525.. .環狀突出部 6.. .乾燥系統 61.. .循環管路 62.. .送風機 7.. .排水控制單元 70.. .筐體 701.. .直管部 702.. .收容管部 704.. .蓋部 705·.·拿取部 71.. .循環泵 711.. .循環管路 712.. .底座 713.. .泵殼 714.. .軸承隔壁 715.. .吸引口 716.. .吐出口 717.·.';咼輪 718.. .馬達 719.. .旋轉軸 72.. .光感測器 721.. .發光元件 722…受光元件 723.. .支持體 724.. .第1支持部 725…第2支持部 726.. .架橋部 727.. .電路基板 728.. .電路基板 729.. .電線 73.. .電極感測器 731.. .端子板 732.. .端子板 43 201111580 733...電線 772·.·平坦内面 734...撓曲線 773...貫通孔 735...邊緣部 774...第1開口部 736...邊緣部 776...過濾器 737...連接部 8...操作面板 738...較厚部 81...控制電路部 739...電極部 813...演算部 739a...上游電極部 814...判定部 739b...下游電極部 815...信號發送部 74...排水管路 P...平面 75...排水閥 Ρ1·._點 76...過渡部 VI…流力 771...第2開口部(連接部） 44C 28 201111580 A large (four)' in the square rotating drum 32 is achieved to supply the washing liquid to the laundry with higher efficiency. The shape of the ridge 322 is not limited to that shown in Fig. 17. For example, the ridge 322 may have a wave shape or a blade shape. A rib 322 of any shape that can change the movement trajectory of the washing liquid discharged from the outlet portion 282 can also be used. Further, it is also possible to arrange the protrusions 322 of any shape which can change the movement trajectory of the washing liquid discharged from the outlet portion 282. A gap is formed between the bearing wall 126 and the rotating drum 32. When the circulating pump 71 is operated at a low speed (e.g., _ah), the washing ship flows into the gap 266 from the injection port 129. The washing liquid flowing into the gap 266 is conveyed in the space between the rotating roller (10) and the water tank 31 toward the discharge port state of the water tank 31. Fig. 18 is a diagram showing the functional configuration of the control circuit unit 81. Control circuit. The parameter 81 includes a calculation unit 813, a determination unit, and a memory unit 816. For example, when the user operates the operation panel 8, the arithmetic unit control circuit 481 has a time of $4 and a program stored in the memory unit (4) to calculate which of the steps of the washing machine 1 to execute the user-designated washing method. Based on the result of the calculation, the calculation unit 813 causes the determination unit 814 to determine whether or not the predetermined operation in the step being executed is necessary. Furthermore, the result calculated by the calculation unit 813 can be temporarily stored in the memory 6. For example, when the calculation unit (1) outputs the information on the elapsed time from the start of the flushing step to the determination unit 814, the determination unit 814 determines whether or not a predetermined time has elapsed since the start of the flushing step. If the predetermined time has elapsed, the determining unit 814 transmits a control signal for opening the drain width 75 toward the drain valve 。. Similarly, the cycle m of the solenoid valve or the drain system 5 of the water supply system* performs a predetermined action in each step of the washing mode in accordance with the letter 29 201111580 from the calculation unit 813. The determination unit 814 receives the information of the cleaning step and/or the start time of the washing step, and/or the cleaning step and/or the elapsed time of the flushing step from the calculation unit 813, and transmits a control signal to the circulation pump 71' to make the circulation pump 71 The cleaning step and/or the rinsing step are intermittently operated during the predetermined period of time. The circulation pump 71 that has received the control signal performs an intermittent operation of the reverse operation and the stop. Fig. 19 is a graph showing signals transmitted by the photo sensor 72 during the intermittent operation of the circulation pump 71. Fig. 19(a) shows the signal from the photo sensor 72 when the washing liquid is foaming. Figure 19(b) shows the signal from photosensor 72 when the blisters are foaming. In Fig. 19, the vertical axis on the left side shows the number of rotations of the circulation system 71, and the vertical axis on the right side shows the output from the photo sensor 72 in bits. Further, in the graph, the points from the output of the photo sensor 72 are the average 値 of 5 samples. • Before explaining the information shown in Fig. 19, the principle of the output variation from the photo sensor 72 will be explained. When the turbidity of the washing liquid is low, the light receiving element 722 of the photo sensor 72 receives more light than when the turbidity is high. Therefore, when the turbidity of the washing liquid is low, a larger current flows to the light receiving element 722 than when the turbidity is high, and the voltage of the electric resistance drops. As a result, the output of the photo sensor 72 will drop. When the turbidity of the washing liquid is high, the light receiving element 722 of the photo sensor 72 has less turbidity and receives less light. Therefore, when the turbidity of the washing liquid is high, less current flows to the light receiving element 722 than when the turbidity is low, and the voltage of the electric resistance rises. As a result, the output of the photo sensor 72 will rise. Explain the information shown in Figure 19. As shown in Fig. 19, the output of the photo sensor 72 30 201111580 changes roughly in synchronization with the intermittent motion of the circulation pump 71. As the number of revolutions of the circulation pump 71 increases, the output of the photo sensor 72 also increases. When the circulation pump 71 is stopped, the output of the photo sensor 72 is lowered. From the comparison of Fig. 19(a) and Fig. 19(b), it is understood that when the foaming of the washing liquid is large, the amplitude of the change in the output of the photo sensor 72 becomes large. The bubble of the washing liquid scatters the infrared light from the light-emitting element 721 of the photo sensor 72, so that the output of the photo sensor 72 becomes smaller when the bubble is large. On the other hand, when the bubble is small, the output of the photo sensor 72 becomes large. When the circulation pump 71 is operated, a lot of bubbles are generated in the straight pipe portion 701 by the water flow. As a result, the bubbles flowing in the straight tube portion 7〇1 become more numerous. The bubble flowing in the straight tube portion 701 causes the light of the photo sensor 72 to scatter, so that less current flows to the light receiving element 722. As described above, when less current flows to the light receiving element 722, since the voltage of the resistor rises, the output of the photo sensor 72 increases. On the other hand, when the circulation pump 71 is stopped, the flow of the washing liquid is lowered. Therefore, the bubble in the straight tube portion 701 floats upward. As a result, the amount of bubbles that scatter the light of the photo sensor 72 becomes small. Therefore, a large amount of current flows in the light receiving element 722, and the voltage of the resistor decreases. Moreover, the output of the photo sensor 72 is lowered. Thus, the degree of foaming of the washing liquid is directly related to the amount of scattering of the light of the photo sensor 72, and is defined as the amount of bubbles that scatter the light of the photo sensor 72. The calculation unit 813 shown in Fig. 18 calculates, for example, the difference between the output of the photosensor 72 during the operation of the circulation pump 71 and the output of the photosensor 72 during the stop of the circulation pump 71 (hereinafter referred to as the output). difference). Here, the operation period and the stop period of the circulation pump 71 can also be defined as "one operation cycle". In order to reduce the influence of the noise contained in the output of the photo sensor 72, the output difference calculated in each operation of 31 2〇1Π58Π may be averaged. The determination unit 814 can also determine the degree of foaming of the washing liquid by, for example, comparing the critical value of the output difference of the photosensor 72 stored in the storage unit 816 with the calculation result of the calculation unit 813. By comparing the critical values of the averaged output differences, the effect of noise on the determination of blistering can be reduced. Further, the calculation by the calculation unit 813 is not limited to the difference between the output of the photosensor 72 during the operation of the circulation pump 71 and the output of the photosensor 72 during the stop of the circulation pump 71. Alternatively, other calculations for calculating the rate of change of the output of the photosensor 72 at the start of the operation of the circulation pump 71 or immediately after the stop or the magnitude of the fluctuation of the output of the photosensor 72 may be used. The memory unit 816 included in the control circuit unit 81 can also store, for example, a first critical value used as a lower limit threshold value of the output difference of the photo sensor 72, and a second critical value used as an upper limit critical value. The determination unit 814 can call the first threshold value and/or the second threshold value from the memory unit 816, and compare the output difference of the photo sensor 72 calculated by the calculation unit 813 with the first threshold value and/or the second threshold value. When the output difference of the photo sensor 72 is below the first critical value, the control signal is sent to the water supply system 4, so that the water supply amount during the water supply step in the cleaning step and/or the rinsing step is compared with the light sensing When the output difference of the device 72 is greater than the first critical value, it becomes smaller. Moreover, it does not supply more unnecessary water, and an appropriate water saving can be achieved. When the output difference of the photo sensor 72 is equal to or higher than the second critical value, the determining unit 814 sends a control signal to the solenoid valve of the water supply system 4 so that the water supply amount during the water supply in the washing step and/or the flushing step is compared with the light. When the output difference of the sensor 72 is smaller than the second critical value, it becomes larger. Moreover, the level of the washing liquid in the washing tank 3 rises, and the washing step and/or the washing step 32 201111580 are performed in an appropriate foaming state. Fig. 20 shows an example of a data structure in which the memory unit 816 has a threshold value for the upper limit and a lower limit value of the photosensor. Referring to Fig. 18 together with reference to Fig. 20, a description will be given of a method for determining the foaming of the washing liquid by using different critical values depending on the type of the lotion. As shown in Fig. 20, the memory portion 816 is used to store an upper limit threshold and a lower limit threshold for each lottery type relative to the output difference of the photosensor 72. The memory unit 816 further stores in advance information on the output of the electrode sensor 73 of each of the lottery types in the water supply step at the start of washing and the change in the output of the photo sensor 72. The control circuit unit 81 sends a control signal to the circulation pump 71 to cause the circulation pump 71 to operate after a predetermined time elapses from the start of the water supply. While the circulation pump 71 is operating, the calculation unit 813 stores the outputs of the electrode sensor 73 and the photo sensor 72 in the memory unit 816 every predetermined time. The determination unit 814 compares the data stored in advance in the storage unit 816 with the output of the electrode sensor 73 and the photo sensor 72 stored in the calculation unit 813, and determines the type of the lotion. The result of the determination is stored in the memory unit 816. However, in the powder lotion containing zeolite and the liquid lotion generally containing no zeolite, the powder lotion containing zeolite has a higher white turbidity, and therefore the powder lotion can be discriminated only by comparison of the output of the photo sensor 72. With liquid lotion. For example, in Fig. 20, the lotion shown by "Α1" is a powder lotion, and the lotion shown by "Α2" and "A3" is used as a liquid lotion. At this time, the upper limit critical value UL1 of the lotion A1 distribution should be set to be larger than the upper limit critical value UL2 or UL3 assigned to the other lotion A2 or A3. When the determination unit 814 determines that the lotion to be used is a powder lotion, the determination unit 814 reads the upper limit threshold value 33 201111580 UL1 from the memory unit 816, and compares the output difference and the upper limit threshold value of the photo sensor 72 calculated by the calculation unit 813. UL1. When the output difference of the photo sensor 72 is greater than the upper limit threshold UL1, or when the upper limit threshold UL1 or higher, the control signal is sent to the solenoid valve of the water supply system 4. As a result, the rinsing step can be performed in other water than other lotions. Thus, suitable rinsing conditions can be provided for powdered lotions containing higher zeolites and containing zeolite. The memory portion 816, in turn, can also store the cleaning time corresponding to the type of lotion. For example, a longer cleaning time than the powder lotion A1 is dispensed with respect to the liquid lotions A2, A3'. When the determination unit 814 determines that the lotion to be used is the liquid lotion A 2 or A3, the calculation unit 813 reads the data of the long washing time stored in the storage unit 816, and causes the drum type washing machine 1 to wash the laundry with a long washing time. . As a result of performing the long-time washing step, even the liquid lotion A2 or A3 having a small emulsifying power and a small washing effect can exert a sufficient washing effect. Further, the determining unit 814 may determine the degree of foaming of the lotion liquid by determining the output of the photosensor 72 after determining whether the lotion to be used is a powder lotion or a liquid lotion. It is also possible to use a timing of transmitting a control signal to the solenoid valve of the water supply system 4 to reduce the amount of water supply in the washing step and/or the rinsing step when it is determined that the liquid lotion is determined as the powder lotion. Depending on the amount of the washing agent, there may be cases where the powdering lotion and the liquid lotion are determined to the same degree by the photosensor 72, but by the above-mentioned determination order and timing, and the degree of foaming is the same The degree can also be achieved in response to the type of lotion. Further, when it is judged that the lotion to be used is a liquid lotion, a washing step which is longer than the determination of the powder lotion may be performed. 34 C; 201111580 In the above description, the electrode sensor 73 for measuring the conductivity is exemplified as a sensor protruding from the flow path, but the above principle is not limited thereto, and may be applied to any one of the necessary A washing machine in which the washing liquid is directly contacted to sense the physical properties of the washing liquid. In the above description, the photo sensor 72 is used to measure the turbidity of the washing liquid, but it can also be used for other measurement purposes. The above principles can also be applied to photosensors 72 for sensing the accumulation of soiled components, or other physical or environmental changes that can be suitably measured using photosensor 72. In the above description, the flow device for flowing the washing liquid is exemplified as a pump, but instead, the washing liquid may be flowed using a propeller or the like disposed in a circulation path or a flow path. Instead of the drain valve exemplified as the drain device in the present embodiment, any device that switches the drain line 74 in response to the electric signal may be used as the drain device. Further, any means for switching the water supply line 41 in response to an electric signal may be used as the water supply means instead of the electromagnetic valve as the water supply means. In the above embodiment, the laundry machine having the following configuration is mainly included. The washing machine according to one aspect of the present invention is characterized in that the washing machine includes a washing tank having an inlet for supplying the washing liquid and a discharge port for discharging the washing liquid, and a pipe connected to the inlet. And the flow device, wherein the washing liquid passes through the pipe and flows from the discharge port toward the inlet port; and the light sensor detects the amount of light passing through the washing liquid in the pipe; and The control unit controls the washing actor according to the detection signal of the light sensor, wherein the light sensor 35 201111580 is used for detecting and outputting the amount of the first light during the operation of the flow device and the stop period of the flow device. 2 amount of light. According to the above configuration, the washing liquid which foams in the washing tub is discharged from the discharge port of the washing tank to the pipe, and is again returned to the washing tank by the inlet of the washing tank. The bubble in the washing liquid generated in the washing tank does not disappear immediately in the pipe, and affects the amount of light passing through the washing liquid, so that the degree of foaming of the washing liquid can be appropriately determined by the photo sensor . The photo sensor detects the first light amount during the flow of the flow and the second light amount during the stop of the flow device, and outputs a detection signal for the third light amount and the second light amount to the control unit. The control unit determines the degree of foaming based on the detection signal, and controls the washing operation. Therefore, the control unit can determine the degree of foaming of the washing liquid even if the bubble in the washing is disappeared. Further, as the determination time is shortened, the water becomes difficult to replenish during the determination period by the control unit. Moreover, the determination of the foaming becomes difficult to "recharge the water. Moreover, it provides a washing machine that can quickly and correctly lick the secret bribe of Tosaki. The degree of bubble and the control of the escape (four) action. The difference between ', 4' According to the above configuration, the detection unit determines the calculation of the washing operation by the detection signal of the second light amount and the detection signal of the first light amount, and the control unit determines the calculation of the bubble flow of the washing liquid or Signal processing. The degree of foaming can be determined without the degree of foaming of the re-liquid. Therefore, 'the above-mentioned structure can be grasped more quickly and correctly, and the above-mentioned machine has more water supply to the aforementioned washing tank 36 201111580 a water supply device, wherein the control unit has a memory unit for storing a first critical value relative to the difference, and the control unit controls the water supply device such that the water supply is from the water supply when the difference is equal to or less than the first critical value The amount of water supplied to the device may be smaller than when the difference is greater than the first critical value. According to the above configuration, when the difference of the detection signals of the photosensor is stored in the first critical value of the memory portion When the lower part, the control unit controls the water supply device and reduces the amount of water supplied from the water supply device. The smaller the difference between the detection signals of the photo sensor, the smaller the degree of foaming of the washing liquid becomes. When the degree of bubble is small, the amount of water supply required is small. Therefore, when the difference between the detection signals is equal to or lower than the first critical value, unnecessary water supply can be suppressed by reducing the amount of water supply. Further, an appropriate water saving effect can be obtained. Preferably, the memory unit further stores a second critical value that is greater than the first critical value, and the control unit controls the water supply device such that when the difference is equal to or greater than the second critical value, the water supply device is The amount of water supply may be larger than when the difference is less than the second threshold value. According to the above configuration, when the difference between the detection signals of the light sensing benefits is stored in the second critical value of the memory unit, the control unit controls the water supply. The device increases the amount of water supplied from the water supply device. The larger the difference between the detection signals of the photosensors, the greater the degree of foaming of the washing liquid. When the degree of foaming of the washing liquid is large, it is necessary. Therefore, when the difference between the detection signals is equal to or greater than the second critical value, the amount of water supply is increased, and a large amount of water can be supplied to the washing tub as needed. Further, a washing operation suitable for the laundry is achieved. Preferably, the memory unit stores data on the amount of light corresponding to the type of the lotion contained in the washing liquid, and the control unit will use the lotion contained in the round-up and wash-out of the photosensor in the future 2011 2011: When comparing the data to the above and determining that the type of the agent is a powder lotion, the second critical value includes a powder washing_critical value corresponding to the type of the above-mentioned washing lotion, and the aforementioned (four) part is pre-determined, so that «descriptive^ (4) The above-mentioned control (4) control (4) When the water supply amount of the water supply device becomes higher than the third critical value of I, the water supply from the water supply is larger than the third critical value according to the above configuration. Washing material:: In addition to the degree of foaming of the silk liquid, the type of lotion is powder = lotion type. The difference between the f' of the powder washing and the detection signal of the photosensor is controlled by the powder washing liquid. Therefore, it is possible to supply water in a small amount in response to the value of the scale. "There is a reduction in the washing process and the week in the washing liquid, although the damage of the laundry is suppressed. In the above configuration, the *, +, ,, and the washing action should be included to clean the washing tank, 3 washes. And the control unit determines, based on the comparison between the output signal and the data from the photosensor, the type of the lotion, and the body pre-formation_the cleaning step execution time ratio determines that the lotion type is the liquid It’s still a long time when it’s washed out. According to the above configuration, when the control unit determines that the type of the lotion contained in the soap liquid is the liquid lotion, the control unit can be in the longer washing step m. Therefore, even a liquid lotion having a low ritual strength and a small washing effect can exert a sufficient washing action. In the above configuration, it is preferable to further include a conductive sensor for detecting the conductivity of the washing liquid and rotating the detection signal to the control portion, and the memory portion is further advanced - the bok bδ 7 δ has been recalled with respect to the washing liquid The combination of the type of the lotion and the combination of the conductivity of the washing liquid and the amount of light, the control unit outputs the output signal from the conductive sensor and the output signal from the photosensor and the foregoing data. In comparison, the type of the lotion contained in the washing liquid is determined. According to the above configuration, the control unit that compares the correlation between the conductivity of the washing liquid stored in the memory unit and the amount of light and the detection signal from the conductive sensor and the photo sensor can more accurately determine the washing liquid. In addition to the degree of foaming, the conductivity of the washing liquid is also added, and the type of the lotion contained in the washing liquid can be more accurately determined. Generally, when the same amount of liquid lotion and powder lotion are used, since the powder lotion tends to have a higher conductivity than the liquid lotion, the combination of the detection signals of the conductive sensors contributes to For a more accurate determination of the type of lotion. In the above configuration, the flow device preferably performs an intermittent operation of the reverse operation and the stop, and the photo sensor outputs the detection signal during the intermittent operation of the flow device, and the control unit performs the operation and the stop of the flow device. The difference of the detection signals in the configured operation cycle is averaged, and the degree of foaming of the wash liquid is determined based on the difference in the above-described averaged detection signals. According to the above configuration, the detection signal for the first light amount and the detection signal for the second light amount are alternately output to the control unit. The control unit averages the difference between the detection signals and determines the degree of foaming of the washing liquid. Therefore, the noise component contained in the detection signal is relatively small, and the accuracy of the determination of the degree of foaming of the washing liquid can be improved. In the above configuration, it is preferable that the flow device and the photosensor have a filter portion for removing the dirt contained in the washing liquid. According to the above configuration, the filter portion disposed upstream of the flow device acts to resist the flow of the washing liquid. Since the filter section is located downstream of the photosensor, the effect of detecting the amount of light of the photosensor is small. Therefore, in the operation of the flow device, the photo sensor can appropriately detect the first amount of light. Further, after the flow device is stopped, the flow of the washing liquid can be suppressed relatively early, so that the photosensor can stably detect the second light amount. Therefore, the judgment section can determine the degree of foaming more quickly and with high precision. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic block diagram showing a drum type washing machine in accordance with an embodiment of the present invention. The second (a) and (b) drawings show the casing used in the drainage control unit of the drum type washing machine shown in Fig. 1. Fig. 3 is a plan view showing a drainage control unit of the drum type washing machine shown in Fig. 1. Fig. 4 is a front elevational view showing the drain control unit of the drum type washing machine shown in Fig. 1. Fig. 5 is a side view showing the drain control unit of the drum type washing machine shown in Fig. 1. Fig. 6 is a side view of the drainage control unit shown in Fig. 5 as viewed from the opposite side. Fig. 7 is a view showing the mounting structure of the light sensor used in the drain control unit shown in Figs. 3 to 6. 40 201111580 The 8(a) to (e) diagram shows the photo sensor shown in Figure 7. Figures 9(a) to (f) show the construction of the bracket of the photosensor shown in Fig. 8. Figures 10 (a) and (b) show the electrode sensors used in the drainage control unit shown in Figures 3 through 6. Fig. 11(a) and (b) show the mounting structure of the electrode sensor shown in Fig. 1. Fig. 12 is a view showing the flow of the washing liquid around the electrode sensor shown in Fig. u. Fig. 13 is a view showing the flow of the washing liquid in the flow path from the photo sensor shown in Fig. 7 to the electrode sensor shown in Fig. 11. Fig. 14 is a view showing the flow of the electrode sensor of the drain control unit shown in Figs. 3 to 6 toward the washing liquid of the circulation pump. 15(a) and (b) are diagrams showing the flow of the washing liquid around the electrode sensor during the operation of the circulation pump of the drainage control unit shown in Figs. 3 to 6 and the operation of the drain valve. 16(a) to (c) are schematic diagrams of the drip control of the drainage control unit shown in Figs. 3 to 6 . Fig. 17 (a) to (c) are views showing the structure around the inlet of the water tank of the drum type washing machine shown in Fig. 1. Fig. 18 is a view showing the functional configuration of the control circuit portion of the drum type washing machine shown in Fig. 1. Figure 19 (a), (b) shows a graph of the signal sent by the circulator during the intermittent action by the light sensor. 41 201111580 Figure 20 is a diagram showing the data structure of the upper limit threshold and the lower limit threshold of the photo sensor. [Main component symbol description] 1.. Drum type washing machine 121.. . Annular rib 122.. . Ο ring 123.. . Squeeze wall 124.. Thicker part 125.. . Fixture 126.. . Bearing wall 127.. Connection wall 128.. Front end wall 129.. Injection port 131.. Mounting seat 132.. Mounting piece 2... Housing 211.. Lens part 221.. Lens 241.. inside side 242... first rib 250.. . light path 251.. inside side 252.. 2nd rib 261.. accommodating wall 262.. gusset 263... accommodating space 264... Through hole 265··· protruding portion 266...void 277...upstream side end portion 281...flow path 282···outlet portion 283...inclined surface 284.. curved surface 3:.washing tank 31...sink 310.. Through hole 311.. discharge port 312·.·flow inlet 313.. exhaust port 32.. rotating drum 321.. front end wall 322.. bulging 42 201111580 33.. motor 371.. Ο Ring 391.. . Upper edge 392.. . Lower edge 4: Water supply system 41.. Water supply line 42.. Lotion accommodating part 5.. Drainage system 51.. . 1st tube Road 52.. 2nd pipe 520... conduit groove 521.. body portion 522.. conduit 523... lower half pipe 524··· cover 525... annular projection 6.. Drying system 61.. .Circulation line 62.. blower 7... Drainage control unit 70.. . Housing 701.. Straight tube part 702.. Containing tube part 704... Cover part 705·.· Take Take the part 71.. Circulating pump 711.. Circulating line 712... Base 713.. Pump casing 714.. Bearing partition 715.. .. suction port 716... vent 717.....咼 718.. . Motor 719.. Rotating shaft 72.. Light sensor 721.. Light-emitting element 722... Light-receiving element 723.. Support 724.. .. 1st support part 725... 2nd support Department 726.. Bridge 727.. Circuit board 728.. Circuit board 729.. Wire 73.. Electrode sensor 731.. Terminal board 732.. Terminal board 43 201111580 733... Wire 772·.·flat inner surface 734...flexure curve 773...through hole 735...edge portion 774...first opening portion 736...edge portion 776...filter 737...connection Part 8: operation panel 738... thicker part 81... control circuit part 739...electrode part 813...calculation part 739a...upstream electrode part 814...determination part 739b... Downstream electrode portion 815...signal transmitting portion 74...drainage line P...plane 75...drain valve Ρ1·._point 76...transition portion VI...flow force 771...second opening Department Connection) 44