200809041” 九、發明說明 【發明所屬的技術領域】 本發明是關於具備有熱泵浦的乾燥功能的洗衣乾衣機 等的衣類乾燥裝置。 【先前技術】 近年來，關於進行衣類的清洗與乾燥的滾筒式的洗衣 乾衣機的構造，例如在日本特開2005-296 1 5 1號公報（以下 稱作專利文獻1 )所提出的熱泵浦式的衣類乾燥裝置，如第 8圖所示，在外槽7 1的背面下部配置：進行吸熱的蒸發器 79、及進行放熱的凝結器77，並且具備有熱交換風路73， 該熱交換風路73，使藉由送風機72所送風的空氣從蒸發器 7 9流動到凝結器77之後，再將其導引到內槽內，在該熱交 換風路73內收容壓縮機76來進行乾燥運轉。 在上述專利文獻1，如沿著上述第8圖的A-A線的剖 面圖也就是第9圖所示，將構成熱泵浦裝置的蒸發器79、 凝結器77、壓縮機76等一體地單元化而設置在，具有周壁 部8 1的載置台8 7，則容易從筐體進行裝卸，容易進行製程 的組裝、或故障時的零件交換，能減少零件數量。 【發明內容】 [發明欲解決的課題] 可是，在上述專利文獻1所示的熱泵浦單元75，是_ 包含將壓縮機或蒸發器79等連接的配管通路的整個單元， -5- 200809041?) 收容在形成熱交換風路73的周壁部81內，所以在製品廢棄 時或回收解體時所進行的冷媒的回收作業很繁雜。 也就是說，以氯氟碳氣體所造成的環境問題爲契機， 現在雖然是將熱泵浦式冷凍循環的冷媒，切換成氯氟碳氫 化合物R410a等的氯氟碳氫化合物冷媒（以下稱作HFC冷 媒）或異丁烷R6 00 a等的碳氫類冷媒（以下稱作HC冷媒）， 而HFC冷媒雖然其臭氧層破壞係數是零，可是其地球暖 化係數較高，而HC冷媒不會破壞臭氧層且地球暖化係數 很低，可是因爲是可燃性，所以當冷媒洩漏時，需要防止 因爲火花而著火，所以廢棄時需要將熱泵浦冷凍循環內的 冷媒回收。 爲了要因爲廢棄或回收而從上述洗衣乾衣機回收冷媒 ，雖然沒有特別圖示，除去覆蓋於筐體7 1的背面的外罩體 ，將各零件一體化的熱泵浦單元75連載置台87—起取出到 主體的背側，將收容著壓縮機76、蒸發器79、凝結器77的 周壁部8 1除去，然後在熱泵浦冷凍循環的配管部，連接冷 媒回收裝置的沖洗閥（Purge valve)，需要進行吸引循環內 部的冷媒而將其回收的作業。而當氣體洩漏等故障而要維 修時，如果不將上述周壁部8 1解體的話，就無法使配管部 露出，會成爲繁雜的作業。 本發明考慮到上述問題，其目的要提供一種衣類乾燥 裝置，將衣類乾燥裝置的熱泵浦單元配設成有效於乾燥氣 流的循環，當裝置主體廢棄時或回收解體時，要更容易從 熱泵浦單元回收冷媒而提昇作業性，並且容易進行檢查修 -6- 20080904b) 理等的維修處理。 [用以解決課題的手段] 用以解決上述課題的本發明，是將在筐體內可旋轉地 所支承的滾筒內所收容的衣類予以乾燥之衣類乾燥裝置， 是以在形成上述筐體的底部的台板上所配設的，具有壓縮 機、凝結器、蒸發器的熱泵浦單元，來形成衣類的乾燥手 段，而在與使乾燥氣流循環於滾筒內的送風機一起形成循 環風路的單元殼體內，收容上述凝結器與蒸發器，將這些 構造與壓縮機連接而形成熱泵浦的冷媒管的至少一部分， 延伸到上述單元殼體的外側，配管成面對於上述筐體外壁 附近的位置。 [發明效果] 藉由本發明的衣類乾燥裝置，就由熱泵浦所造成的乾 燥氣流而能有效地乾燥衣類，並且乾燥裝置廢棄時，容易 從熱泵浦單元進行冷媒回收作業’而能提昇檢查修理等的 維修作業性。 【實施方式】 以下根據圖面針對洗衣乾衣機來說明本發明的一種實 施方式。第1圖是製品全體的縱剖側面圖’在第2圖顯示從 背面來看的局部分解立體圖的滾筒式洗衣乾衣機1 ’藉由 :由薄鋼板所構成，形成左右側面的側板3、與該左右側 20080904b) 板連接而形成前面部的薄鋼板製的前板4、及形成頂部的 頂板5，來形成筐體2，藉由以前蓋部6覆蓋筐體2的前面部 ，而形成外輪廓也就是主體。 在上述頂板5的內面，配置有：涵蓋橫方向而結合於 上述左右側板3的鋼體也就是頂部框架7，筐體2的下面部 ，是以用聚丙烯樹脂等形成爲較厚的盤狀的台板8所覆蓋 。而在開放的背面，藉由將鋼體也就是鋼板製的上部框架 9與上述台板8配設在左右的側板3、3之間，來保持作爲筐 體2的剛性，上部框架9與台板8之間的背面開口 15，藉由 以鋼板製的下部框架1 〇及厚度較薄的背蓋1 1可自由裝卸地 覆蓋使用爲檢查用途。 如第1圖所示，在筐體2的內部配置水槽1 2。水槽1 2， 是作成背面封閉的橫向圓筒狀，是藉由在上述台板8的左 右所設的一對彈性支承裝置13來支承水槽12的底部，並且 以使上端卡合於上述頂部框架7及上部框架9的拉伸線圈彈 簧1 4來懸吊上述複數部位，而將水槽1 2彈性地支承於筐體 2內。 在筐體2內的背面側的下方，連接有：經由排水閥將 水槽1 2內的清洗用水導出到機體外的排水軟管1 6，在筐體 2上部設置有：供水到上述水槽1 2內的供水閥1 7、或雖然 沒有特別圖示，用來投入清洗劑的清洗劑盒體，而配置有 :與從供水閥1 7所供水的水一起將清洗劑供給到水槽1 2內 的注水盒體等。 而在筐體2的上部前面側，配置有：用來選擇設定清 -8- 200809041s) 洗行程等的操作面板1 8，在上述前蓋6的中央部分，開設 有：合乎上述前板4的開口端面用來讓清洗物出入的的圓 形的投入口 21，配置有門部22，該門部22形成有可將該投 入口 2 1可自由開閉地封閉的透明玻璃窗，並且當關門時， 藉由使在主體側的開口緣部所設的由軟質樹脂材料所構成 的波紋管2 3抵接於門部2 2，讓水不會從水槽1 2漏出機體外 〇 在水槽1 2的內部，配設有：可繞著橫軸旋轉的有底圓 筒狀的滾筒2 0。該滾筒2 0，被支承爲：沿著水槽1 2朝向前 方而稍微朝向上方的傾斜狀態，在體部周壁具有：多數的 脫水孔20a、與用來撥起清洗物的擋板20b，其功能爲作爲 從清洗行程到脫水、乾燥行程的水槽1 2的共用槽。 在上述滾筒20的封閉的背面，安裝有：被軸支承在水 槽1 2的上述封閉的背面部，控制成與清洗及脫水行程因應 的旋轉速度的馬達24，滾筒20是藉由該馬達24旋轉。馬達 24，例如是外轉子型式，將內側的定子固定在水槽1 2側， 將直接連結到外側的轉子的旋轉軸，水密性地貫穿於水槽 12的後壁部，並且使其連結到滾筒20背面部的中心。 上述構造的滾筒式洗衣乾衣機1，可選擇設定洗衣、 洗清、脫水的各功能行程而自動執行，在從上述投入口 2 1 將清洗物投入到滾筒20內然後將門部22關閉之後，在洗衣 及洗清行程，在已將清洗用水供給到水槽1 2內的狀態’使 滾筒20低速旋轉，藉由用擋板20b將清洗物撥起然後落下 的攪拌運動，來進行清洗，在脫水行程，將排水閥開啓’ -9 - 200809041s) 將洗清行程後的清洗用水從排水軟管1 6排出到機體外，然 後使滾筒20朝一方向高速旋轉，從設置在體部周壁的多數 的脫水孔20a進行離心脫水。 在配置成上述傾斜狀態的水槽1 2與筐體2底面之間所 形成的空間的寬度方向的大致中央部，涵蓋前後方向，在 第3圖從後方觀察的立體圖所示，設置了熱泵浦單元25， 在清洗動作完成後的乾燥動作時，使滾筒20以各種速度旋 轉來將其驅動，將藉由熱泵浦所產生的熱使用於清洗物的 乾燥。 上述熱泵浦單元25，是環狀地配管連接著：將R410a 等的HFC冷媒壓縮排出的壓縮機26、使從該壓縮機26所 排出的高溫高壓的冷媒氣體放熱而凝結的凝結器27、將凝 結的高壓冷媒減壓的膨脹閥28、及導入減壓後的冷媒而將 其蒸發吸熱的蒸發器29，而構成了熱泵浦冷凍循環，從筐 體2底部的前部朝向後部，依序配置了 ：壓縮機26、蒸發 器29、凝結器27。 上述蒸發器29與凝結器27，是將冷媒管貫穿於多數排 列設置的葉片，該葉片是將由良好熱導體的鋁等所構成的 薄板以預定節距排列設置，是將從葉片端板所延伸出的冷 媒管形成爲U字型而全體配置成蛇行彎曲狀的熱交換器 ，是配設成：將來自於上述壓縮機26的排出管26b經由形 成爲蛇行彎曲狀的連接管A30，而連接於凝結器27的冷媒 入口管27a，從凝結器27的出口藉由連接管B31而連接於 膨脹閥28，從膨脹閥28藉由連接管C3 2連接於蒸發器29的 -10- 2008090417) 冷媒入口管29a，從蒸發器29藉由連接管D33經由儲存器 37，回到壓縮機27的吸入部。上述連接管D33，當熱泵浦 驅動時，也就是在乾燥運轉時，會成爲低溫而其外表面有 可能產生凝結，所以覆蓋上由軟質聚氨酯所構成的隔熱管 3 5以防止凝結。 構成熱泵浦單元25的上述各零件，是在用加入玻璃纖 維的聚丙烯樹脂等作得較厚的剛體的單元基座3 7上，經由 緩衝橡膠3 8等所保持，藉由用螺栓固定來將其單元化。 該單元基座3 7，如上述第1圖所示，是配設於：形成 筐體2的下部的上述台板8上。台板8，在其局部一體地形 成有：用來將以上述熱泵浦冷凍循環的蒸發器29所除濕的 除濕水予以儲存的排水槽3 9，排水槽3 9的上面開口是以槽 蓋4 0所覆蓋，並且在其上部載置了上述熱泵浦單元25的蒸 發器29或凝縮器27。在上述排水槽39設置有：用來將所儲 存的除濕水排出到機體外的排水泵浦。 將壓縮機26與各熱交換器27、29予以連結的上述連接 管A30、連接管B31、連接管C32、連接管D33，是集中 設置在：大致長方體形狀的蒸發器29或凝結器27的前後方 向的一側面。並且是將，上述蒸發器29與凝結器27的分別 配置連接管的側邊的葉片端板29b及27b的面配置成爲相 同平面’並且將其收容在··以合成樹脂形成爲箱狀而構成 循環風路的單元殻體41內，而配置於上述單元基座3 7上， 藉由在上述單元殼體41的後部配置乾燥用送風機42，而形 成從洗衣乾衣機1的前部到背面側的直線的循環風路43。 -11 - 20080904b) 設置有乾燥送風機42的風扇殼體44，是從上述單元殻 體4 1的背面側的後部以螺栓固定在水平方向。在與風扇殻 體44對應的筐體背面側的開口 1 5，將上述下部框架1 0設置 爲兼用爲補強板的蓋子，使其下方的一部分卡合於上述台 板8，且以螺栓固定，上部則藉由以螺栓固定在上述左右 側板3，而可裝卸地安裝在筐體2。 乾燥用送風機42，位於上述凝結器27的背面側，在洗 衣乾燥運轉的乾燥行程而當驅動熱泵浦單元25時，被控制 成同時旋轉，將藉由成爲高溫的凝結器27而加熱到約70 °C 的乾燥空氣，經由將上述乾燥用送風機42的下游側與滾筒 20的背面側部分予以連通的滾筒入口管道45，從上述馬達 24的周邊部分吹入到滾筒20內，藉由使其與清洗物接觸， 將水分奪走而使衣物乾燥，並且將與清洗物接觸而成爲潮 濕狀態的空氣，從滾筒2 0內經由投入口 2 1及外周側的脫水 孔2 0 a而流出到外側，藉由從滾筒出口管道4 6通過低溫的 蒸發器部29，來將包含於循環空氣中的水分除去，接著藉 由將其回流到高溫的凝結器2 7，再作成加熱的乾燥空氣而 使其循環。 熱泵浦單元2 5，不只如上述僅使用於乾燥動作，在洗 衣或洗清時，使朝向水槽12內的供水管與凝結器27熱交換 ，藉由使清洗用水成爲溫水，則可提升洗衣效果，或藉由 在從脫水時或洗衣移往乾燥動作的過程運轉，則藉由溫風 能有助於清洗物的除濕效果。 將蒸發器29與凝結器27收容在前後方向的上述單元殼 -12- 200809041.) 體41，其中一側沿著上述蒸發器29與凝結器27的作爲相同 平面的一側面，並且以合乎各葉片端板29b、27b的側面 積的方式分別設置有矩形的缺口部4 1 a、4 1 b，使葉片端板 的其中一側露出於外側，另一側作爲將從葉片端板所突出 的U形管予以覆蓋的空間，將殻體內側作爲乾燥溫風的 循環風路43，在覆蓋上面部的上蓋部41c上的蒸發器29與 凝結器27之間，涵蓋整個寬度設置有：當後述的冷氣送風 運轉時，將外氣吸到蒸發器29內的進氣口 47。 如第4圖所示，是從第2圖除去外壁部的主要部分的後 方的立體圖，上述壓縮機26，是配設在：從朝前後方向延 伸設置的單元殻體4 1的循環風路43的軌跡偏離的上述單元 殼體4 1的其中一側的上述連接管A〜D側的位置，藉由與 該壓縮機26連接，從形成熱泵浦的上述其中一側的葉片端 板2 7b、2 9b朝側方突出的冷媒管之中，最接近背面開口 15側的將壓縮機26與凝結器27予以連接的排出管也就是連 接管A3 0，在其中一部分面對於單元殼體41的外側的位置 ，直線地配管成：沿著將筐體2的背面開口 1 5封閉的背蓋 也就是下部框架1 0的內面部。 在與位於單元殻體4 1的筐體2的前面部的下部的上述 蒸發器29相對向的部位，設置有：作爲吹出部而其橫寬度 尺寸形成得較寬的百葉窗部48及送風風扇49。 上述送風風扇49，具有將來自於位於後方的蒸發器29 的冷氣，從設置於上方的外面開口部的百葉窗部48吹出到 機體外的冷氣送風功能，也就是有冷房功能，在與上述百 -13- 200809041ο) 葉窗部48的寬度尺寸配合的預定長度的旋轉軸周圍，以設 置有多數葉片的橫流風扇所構成。當藉由筐體2前面的操 作面板的操作進行冷房運轉時’與熱泵浦單元25—起將送 風風扇49驅動，從設置於上述單元殻體41的上蓋的上述進 氣口 47來吸引外氣，藉由使其通過蒸發器29，將被除濕冷 卻的冷氣從百葉窗部48朝外吹出。 在上述滾筒出口管道46的分歧部分，配設有沒有圖示 的切換阻尼器1 9，在清洗運轉後的乾燥行程，以該切換阻 尼器19將上述百葉窗部48側封閉，並且開放從滾筒出口管 道46朝向蒸發器29側的送風路，而不會妨礙於滾筒20內循 環的溫風的流動。 5 0是用來去除從滾筒20到蒸發器29的送風路中的線屑 或空氣中的異物的濾屑器，用來防止：從滾筒20內的衣物 所產生的線屑等的異物流到管道內，從蒸發器29及凝結器 2 7侵入到乾燥用送風機42部分而附著的情形，並且藉由握 持部將其抽出而可進行清理。 本實施例是作成如以上的構造，藉由上述，凝結器2 7 與蒸發器29是收容於單元殼體41內，壓縮機26位於單元殼 體41的外側，並且將該壓縮機26與凝結器27的冷媒入口管 27a連接而形成熱泵浦冷凍循環的連接管Α30，是在單元 殼體4 1的外側在面對於筐體2的背面開口 1 5的部位，所以 當將製品廢棄時，只要將主體背面的背蓋1 1與下部框架1 0 卸下，則在所形成的開口 15，上述連接管A30會露出。 於是爲了要回收冷媒，在以延展性很好的銅管所形成 -14- 2008090411) 的連接管A3 0的管路內，將由歧管、回收槽、真空泵浦等 所構成的冷媒回收裝置的沖洗閥（Purge valve)的銷栓插入 ，藉由將上述閥打開，則能吸引熱泵浦冷凍循環內部的冷 媒讓其不會洩漏擴散，能將其回收到回收槽內。 如第5圖所示，將上述連接管A30的一部分延伸到， 將筐體2的背面開口 1 5封閉的下部框架1 0的位置，只要沿 著開口 15直線地配設而形成延伸冷媒管30a的話，從藉由 將下部框架1 〇及背蓋1 1卸下所形成的開口 1 5的外側，則能 將冷媒回收裝置的沖洗閥（Purge valve)容易地連接到，位 於筐體2的背面附近的延伸冷媒管30a，則能不用進行將沖 洗閥（Purge valve)插入到，設置有熱泵浦單元25或乾燥用 送風機42等的狹窄的空間這樣繁雜的作業。 而如第6圖所示，在直線地配管的上述延伸冷媒管3 Oa 的一部分，藉由設置：顯示主體廢棄時的冷媒回收部位的 箭頭標誌或文字等的顯示部3 Ob，則作業者能將冷媒回收 部位作成特定位置，而能容易進行冷媒回收作業。 並且，在針對熱泵浦單元25 ’進行冷媒回收的情況， 如第7圖所示，在與上述同樣地延伸到背面開口 1 5附近的 冷媒管30a’的局部，藉由設置：用來進行冷媒回收或封入 冷媒的管道（供排）閥5 1，則不僅是利用回收用連接閥來回 收冷媒，在冷媒量不足而衣類乾燥性能降低的情況，也可 利用冷媒封入裝置來補充冷媒，而可提升維修性。 在要使用來回收冷媒的冷媒管3 0、3 0a相面對時，不 限於背面開口，也可面對於在筐體2的前面部所形成的開 -15- 200809041丨2) 口。而上述雖然是針對洗衣乾衣機廢棄時的冷媒回收來加 以說明，而本發明並不限於此，將熱泵浦單元2 5、2 5 ’上 的凝結器27或蒸發器29，收容在：形成乾燥空氣的循環風 路43的單元殼體41內，並且使葉片端板27b、29b朝外側 露出於單元殼體4 1的一側而配設，在單元殻體4 1的外部， 將壓縮機26配置在：從上述葉片端板27b、29b的一側延 伸出的連接管A30〜D33側，則能將形成熱泵浦冷凍循環 的各零件的連接部集中設置在單元殼體4 1的其中一側的外 側。 因此，在製造熱泵浦單元25、25’時的焊接等的配管 連接作業，就可從單元殼體4 1的一側來進行，不只是能提 昇作業性，氣體從配管洩漏而故障時的維修檢查或補充冷 媒、配管連接作業等，都能容易進行。 本發明的對象並不限於洗衣乾衣機，也能適用於：專 用乾衣機等的使用熱泵浦冷凍循環的衣類乾燥裝置。 【圖式簡單說明】 第1圖是顯示本發明的一種實施方式的滾筒式洗衣乾 衣機的槪略縱剖面圖。 第2圖是從第1圖的背面卸下局部零件的狀態的立體圖 〇 第3圖是從第2圖的熱泵浦單元的後方觀察的立體圖。 第4圖是顯示從第2圖除去外壁部的狀態的從主要部分 後方觀察的立體圖。 -16- 20080904113) _ ^甘仙實施例的與第4圖相同部分 第5圖是顯示本發明的其彳也# 的槪略立體圖。 第6圖是顯示第5圖的變形例的主女Π卩分的11體圖。 第7圖是顯示本發明的另一實施例的與第4圖相同部分 的槪略立體圖。 第8圖是顯示習知的熱泵浦式衣類乾燥機的構造的背 面圖。 第9圖示沿著第8圖的A - A線的剖面圖。 【主要元件符號說明】 2 :筐體 3 :側板 8 :台板 10 :下部框架 11 :背蓋 12 :水槽 1 5 :背面開口 20 :滾筒 24 :馬達 25 :熱泵浦單元 26 :壓縮機 27 :凝結器 29 :蒸發器 27a、29a:冷媒入口管 -17- 200809041丨4) 27b、29b :葉片端板 30、 31、 32、 33:連接管 3 0 a :延伸冷媒管 3 0 b :冷媒回收顯示部 3 7 :單元基座 41 :單元殼體 42 :乾燥用送風機 43 :循環風路 44 :風扇殻體 51 :管道（供排）閥 -18-[Technical Field] The present invention relates to a clothes drying device such as a washing and drying machine having a heat pumping drying function. [Prior Art] In recent years, cleaning and drying of clothes have been carried out. The heat-pump type clothes drying device proposed in Japanese Laid-Open Patent Publication No. 2005-296151 (hereinafter referred to as Patent Document 1) is shown in FIG. An evaporator 79 that absorbs heat and a condenser 77 that performs heat generation are disposed on the lower portion of the back surface of the outer tank 71, and a heat exchange air passage 73 that allows air to be blown by the blower 72 is provided. After flowing from the evaporator 7 9 to the condenser 77, it is guided into the inner tank, and the compressor 76 is housed in the heat exchange air passage 73 to perform the drying operation. In the above Patent Document 1, as described above In the cross-sectional view taken along line AA of Fig. 8, which is shown in Fig. 9, the evaporator 79, the condenser 77, the compressor 76, and the like constituting the heat pump device are integrally unitized and provided with the peripheral wall portion 81. It is easy to set up 8 The mounting of the casing is easy, and it is easy to carry out the assembly of the process or the exchange of the parts at the time of the failure, and the number of parts can be reduced. [Problems to be Solved by the Invention] However, in the heat pump unit 75 described in Patent Document 1, _ The entire unit including the piping passage connecting the compressor or the evaporator 79, etc., -5-200809041?) is housed in the peripheral wall portion 81 where the heat exchange air passage 73 is formed, so that it is carried out when the product is discarded or when the product is dismantled. The recovery of the refrigerant is very complicated. That is to say, the environmental problem caused by the chlorofluorocarbon gas is an opportunity. Now, the refrigerant of the heat pump refrigeration cycle is switched to the chlorofluorocarbon of the chlorofluorocarbon R410a. A hydrocarbon refrigerant (hereinafter referred to as HFC refrigerant) or a hydrocarbon refrigerant such as isobutane R6 00 a (hereinafter referred to as HC refrigerant), and the HFC refrigerant has a ozone depletion coefficient of zero, but its global warming coefficient is higher. High, and HC refrigerant does not destroy the ozone layer and the global warming coefficient is very low, but because it is flammable, when the refrigerant leaks, it is necessary to prevent the fire from being caused by the spark, so when it is discarded It is necessary to collect the refrigerant in the heat pump refrigeration cycle. In order to collect the refrigerant from the above-described washing and drying machine due to disposal or recycling, the outer cover covering the back surface of the casing 71 is removed, unless otherwise specified, and the parts are removed. The integrated heat pump unit 75 is taken out from the mounting table 87 and taken out to the back side of the main body, and the peripheral portion 8 1 in which the compressor 76, the evaporator 79, and the condenser 77 are housed is removed, and then the piping in the heat pump refrigeration cycle is removed. The flush valve that connects the refrigerant recovery device needs to perform the operation of sucking the refrigerant inside the circulation and recovering it. When the gas is leaked or the like is repaired, if the peripheral wall portion 8 1 is not disassembled, The piping portion cannot be exposed, which can be a complicated operation. The present invention has been conceived in view of the above problems, and an object thereof is to provide a clothes drying device which is configured to configure a heat pumping unit of a clothes drying device to be effective for circulation of a dry air stream, and to be more easily heated when the device body is discarded or recovered. The pump unit recovers the refrigerant to improve workability, and it is easy to carry out inspection and repair. [Means for Solving the Problem] The present invention for solving the above problems is a clothes drying device that dries clothes stored in a drum rotatably supported in a casing, and is formed at the bottom of the casing. a heat pump unit having a compressor, a condenser, and an evaporator disposed on the platen to form a drying means for the clothes, and a unit for forming a circulation air path together with a blower that circulates the dry airflow in the drum The inside of the casing houses the condenser and the evaporator, and connects the structure to the compressor to form at least a part of the heat-pumped refrigerant pipe, and extends to the outside of the unit casing, and the pipe faces the position near the outer wall of the casing . [Effect of the Invention] According to the clothes drying device of the present invention, the clothes can be effectively dried by the dry air flow caused by the heat pumping, and when the drying device is discarded, the refrigerant recovery operation can be easily performed from the heat pump unit. Maintenance workability such as repair. [Embodiment] Hereinafter, an embodiment of the present invention will be described with respect to a washing and drying machine in accordance with the drawings. Fig. 1 is a longitudinal sectional side view of the entire product. The drum type washing and drying machine 1' which shows a partial exploded perspective view from the back side in Fig. 2 is formed by a thin steel plate, and the side plates 3 which form the left and right side faces are formed. A front plate 4 made of a steel sheet having a front portion and a top plate 5 forming a top portion are formed to be connected to the left and right sides 20080904b), and the casing 2 is formed, and the front cover portion 6 covers the front portion of the casing 2 to form a casing 2 The outer contour is also the main body. The inner surface of the top plate 5 is provided with a steel body that is coupled to the left and right side plates 3 in the lateral direction, that is, the top frame 7, and the lower surface of the casing 2 is formed into a thick disk by a polypropylene resin or the like. Covered by a platen 8 of the shape. On the open back surface, the upper frame 9 made of a steel body, that is, a steel plate, and the platen 8 are disposed between the left and right side plates 3 and 3 to maintain the rigidity of the casing 2, and the upper frame 9 and the table are fixed. The back opening 15 between the plates 8 is detachably covered and used for inspection purposes by a lower frame 1 made of a steel plate and a back cover 1 1 having a small thickness. As shown in Fig. 1, a water tank 1 2 is disposed inside the casing 2. The water tank 12 is formed in a lateral cylindrical shape whose back surface is closed, and supports the bottom of the water tank 12 by a pair of elastic supporting means 13 provided on the right and left sides of the above-mentioned platen 8, and the upper end is engaged with the top frame. 7 and the tension coil spring 14 of the upper frame 9 suspend the plurality of portions, and the water tank 12 is elastically supported in the casing 2. A drain hose 16 for discharging the washing water in the water tank 1 to the outside of the machine via a drain valve is connected to the lower side of the casing 2, and water is supplied to the water tank 1 2 at the upper portion of the casing 2. The water supply valve 17 in the inside or the cleaning agent case for inserting the cleaning agent, although not shown in the figure, is disposed to supply the cleaning agent to the water tank 1 2 together with the water supplied from the water supply valve 17 Water injection box, etc. On the upper front side of the casing 2, an operation panel 18 for selecting a cleaning stroke, etc., is provided, and in the central portion of the front cover 6, a front panel 4 is provided. A circular opening 21 for opening and closing the cleaning object is disposed, and a door portion 22 is formed. The door portion 22 is formed with a transparent glass window that can open and close the input port 21, and when the door is closed By abutting the bellows 2 3 made of a soft resin material on the opening edge portion of the main body side against the door portion 2 2, water is prevented from leaking from the water tank 12 to the outside of the water tank 1 2 . Inside, there is a bottomed cylindrical drum 20 that is rotatable about a horizontal axis. The drum 20 is supported in a state of being inclined upward toward the front along the water tank 12, and has a plurality of dewatering holes 20a and a baffle 20b for lifting the laundry on the body peripheral wall. It is a common tank which is the water tank 1 2 from a washing process to a dehydration and drying process. On the closed rear surface of the drum 20, a motor 24 that is pivotally supported by the closed rear surface portion of the water tank 12 and controlled to a rotational speed corresponding to the washing and dehydrating stroke is attached, and the drum 20 is rotated by the motor 24. . The motor 24 is, for example, an outer rotor type, and the inner stator is fixed to the side of the water tank 12, and the rotating shaft of the rotor directly coupled to the outer side is watertightly inserted into the rear wall portion of the water tank 12, and is coupled to the drum 20 The center of the back. The drum-type washer-dryer 1 of the above configuration can be automatically executed by selecting various functional strokes for setting washing, washing, and dehydrating, and after the washing object is put into the drum 20 from the above-mentioned input port 2 1 and then the door portion 22 is closed, In the washing and washing course, in a state where the washing water has been supplied into the water tank 12, the drum 20 is rotated at a low speed, and the washing is performed by the agitating movement of the washing material by the baffle 20b, and then the washing is performed. Stroke, open the drain valve ' -9 - 200809041s) The washing water after the washing stroke is discharged from the drain hose 16 to the outside of the machine, and then the drum 20 is rotated at a high speed in one direction, and the majority of the dewatering is provided from the peripheral wall of the body. The hole 20a is subjected to centrifugal dehydration. The center portion in the width direction of the space formed between the water tank 1 2 disposed in the inclined state and the bottom surface of the casing 2 covers the front-rear direction, and the heat pump is provided as shown in a perspective view from the rear in FIG. 3 . The unit 25 rotates the drum 20 at various speeds during the drying operation after the completion of the washing operation, and uses the heat generated by the heat pumping to dry the washing material. The heat pump unit 25 is connected to a compressor 26 that compresses and discharges the HFC refrigerant such as R410a, and a condenser 27 that dissipates the high-temperature and high-pressure refrigerant gas discharged from the compressor 26 and condenses. The expansion valve 28 that decompresses the condensed high-pressure refrigerant and the refrigerant that has been introduced into the decompressed refrigerant are evaporated to absorb the heat-absorbing evaporator 29, thereby forming a heat-pump refrigeration cycle, from the front portion toward the rear portion of the bottom of the casing 2, The sequence is configured: a compressor 26, an evaporator 29, and a condenser 27. The evaporator 29 and the condenser 27 are formed by penetrating a refrigerant pipe through a plurality of blades arranged in a line which is formed by arranging a thin plate made of aluminum or the like of a good heat conductor at a predetermined pitch, and extending from the blade end plate. The heat exchanger tube is formed in a U-shape and is disposed in a meandering heat exchanger, and is disposed such that the discharge pipe 26b from the compressor 26 is connected via a connecting pipe A30 formed in a meandering shape. The refrigerant inlet pipe 27a of the condenser 27 is connected to the expansion valve 28 from the outlet of the condenser 27 via the connection pipe B31, and is connected to the evaporator 29 from the expansion valve 28 via the connection pipe C3 2 (2008-09-417) The inlet pipe 29a is returned from the evaporator 29 to the suction portion of the compressor 27 via the reservoir 37 via the connecting pipe D33. The above-mentioned connecting pipe D33 is cooled by heat pumping, that is, during drying operation, and its outer surface may be condensed, so that the heat insulating tube 35 made of soft polyurethane is covered to prevent condensation. Each of the above-described components constituting the heat pump unit 25 is held by a cushion rubber 38 or the like on a unit base 37 made of a polypropylene resin or the like which is made of a glass fiber, and is fixed by bolts. To unitize it. The unit base 3 7 is disposed on the platen 8 forming the lower portion of the casing 2 as shown in Fig. 1 described above. The platen 8 is integrally formed at a portion thereof with a drain groove 3 for storing dehumidified water dehumidified by the evaporator 29 of the heat pump refrigeration cycle, and the upper opening of the drain groove 39 is a groove cover. The evaporator 40 or the condenser 27 of the above-described heat pump unit 25 is placed on the upper portion thereof. The drain tank 39 is provided with a drain pump for discharging the stored dehumidified water to the outside of the machine. The connection pipe A30, the connection pipe B31, the connection pipe C32, and the connection pipe D33 that connect the compressor 26 to each of the heat exchangers 27 and 29 are collectively provided before and after the evaporator 29 or the condenser 27 having a substantially rectangular parallelepiped shape. One side of the direction. In addition, the surfaces of the vane end plates 29b and 27b of the side of the condenser 29 and the condenser 27 on which the connecting pipes are disposed are arranged in the same plane', and are housed in a box shape of synthetic resin. The inside of the unit casing 41 of the circulation air passage is disposed on the unit base 37, and the drying blower 42 is disposed in the rear portion of the unit casing 41 to form the front to the back of the washer-dryer 1. A linear air circulation path 43 on the side. -11 - 20080904b) The fan casing 44 provided with the dry blower 42 is bolted in the horizontal direction from the rear side of the back side of the unit casing 41. In the opening 15 on the back side of the casing corresponding to the fan case 44, the lower frame 10 is provided as a cover serving as a reinforcing plate, and a part of the lower portion is engaged with the platen 8, and is fixed by bolts. The upper portion is detachably attached to the casing 2 by bolting to the left and right side plates 3. The drying blower 42 is located on the back side of the condenser 27, and is controlled to rotate at the same time when the heat pumping unit 25 is driven during the drying stroke of the washing and drying operation, and is heated to about a high temperature condenser 27. The drying air of 70 ° C is blown into the drum 20 from the peripheral portion of the motor 24 via the drum inlet duct 45 that communicates the downstream side of the drying blower 42 with the back side portion of the drum 20, thereby In contact with the cleaning material, the moisture is taken away to dry the laundry, and the air which is in contact with the cleaning material and becomes wet is discharged from the drum 20 through the inlet port 2 1 and the dewatering hole 20 a on the outer peripheral side to the outside. By removing the moisture contained in the circulating air from the drum outlet pipe 46 through the low-temperature evaporator portion 29, and then returning it to the high-temperature condenser 2, and then making the heated dry air. Its circulation. The heat pump unit 25 is not only used for the drying operation as described above, but also heat exchanges between the water supply pipe and the condenser 27 in the water tank 12 during washing or washing, and can be improved by making the washing water warm. The laundry effect, or by the process of moving from dehydration or washing to drying, contributes to the dehumidification effect of the laundry by warm air. The evaporator 29 and the condenser 27 are housed in the unit casing -12-200809041.) body 41 in the front-rear direction, one side of which is along the side of the evaporator 29 and the condenser 27 which are the same plane, and is compatible with each other. The side areas of the blade end plates 29b, 27b are respectively provided with rectangular notch portions 4 1 a, 4 1 b such that one side of the blade end plate is exposed to the outside and the other side is to protrude from the blade end plate. The U-shaped tube covers the space, and the inside of the casing is used as a circulating air path 43 for drying the warm air. The evaporator 29 and the condenser 27 on the upper cover portion 41c covering the upper surface cover the entire width. When the cold air blowing operation is performed, the outside air is sucked into the air inlet 47 in the evaporator 29. As shown in Fig. 4, the rear view of the main portion of the outer wall portion is removed from Fig. 2, and the compressor 26 is disposed in a circulation air passage 43 of the unit casing 41 extending from the front-rear direction. The position of the one of the connecting pipes A to D on one side of the unit casing 4 1 deviated from the trajectory is connected to the compressor 26 from the blade end plate 27b of the one side of the heat pumping Among the refrigerant tubes protruding toward the side, the discharge pipe that connects the compressor 26 and the condenser 27 closest to the side of the back opening 15 is also the connection pipe A3 0, and a part of the surface of the refrigerant is connected to the unit casing 41. The outer position is linearly piped so that the back cover that closes the rear opening 15 of the casing 2 is the inner face of the lower frame 10 . A louver portion 48 and a blower fan 49 which are formed to have a wide lateral width dimension as a blowing portion are provided at a portion facing the evaporator 29 located at a lower portion of the front portion of the casing 2 of the unit casing 41. . The blower fan 49 has a cold air blowing function for blowing cold air from the evaporator 29 located at the rear side from the louver portion 48 provided in the upper outer opening portion, that is, a cold room function, and the above-mentioned 13-200809041 o) Around the rotating shaft of a predetermined length in which the width of the leaf window portion 48 is matched, a cross-flow fan provided with a plurality of blades is formed. When the cold room operation is performed by the operation of the operation panel on the front side of the casing 2, the blower fan 49 is driven together with the heat pump unit 25, and is sucked from the air inlet 47 provided in the upper cover of the unit casing 41. The gas is blown out of the louver portion 48 outward by passing it through the evaporator 29. In the branch portion of the drum outlet duct 46, a switching damper 19 (not shown) is disposed, and the damper portion 48 is closed by the switching damper 19 during the drying stroke after the washing operation, and is opened from the drum outlet. The duct 46 faces the air supply path on the side of the evaporator 29 without obstructing the flow of warm air circulating in the drum 20. 50 is a chip remover for removing foreign matter in the air supply path from the drum 20 to the evaporator 29, and for preventing the occurrence of foreign matter such as chips generated from the laundry in the drum 20 to The inside of the duct is infiltrated from the evaporator 29 and the condenser 27 to the portion of the drying blower 42 and can be cleaned by pulling it out by the grip portion. The present embodiment is constructed as above. By the above, the condenser 27 and the evaporator 29 are housed in the unit casing 41, the compressor 26 is located outside the unit casing 41, and the compressor 26 is condensed. The refrigerant inlet pipe 27a of the heater 27 is connected to form a connection pipe 30 of the heat pump refrigeration cycle, and is a portion that is open to the rear surface of the casing 2 at the outer side of the unit casing 41, so that when the product is discarded, When the back cover 1 1 and the lower frame 10 are removed from the back surface of the main body, the connecting pipe A30 is exposed at the opening 15 formed. Therefore, in order to recover the refrigerant, the refrigerant recovery device composed of the manifold, the recovery tank, the vacuum pump, and the like is flushed in the piping of the connecting pipe A3 0 which is formed by a copper pipe having excellent ductility. The plug of the valve (Purge valve) is inserted, and by opening the valve, the refrigerant inside the heat pump refrigeration cycle can be sucked out so that it does not leak and spread, and can be recovered in the recovery tank. As shown in Fig. 5, a part of the connecting pipe A30 is extended so that the position of the lower frame 10 that closes the rear opening 15 of the casing 2 is linearly arranged along the opening 15 to form the extended refrigerant pipe 30a. In the case where the lower frame 1 〇 and the back cover 1 1 are detached from the outside of the opening 15 formed, the flush valve of the refrigerant recovery device can be easily connected to the back of the casing 2. In the vicinity of the extending refrigerant pipe 30a, it is possible to eliminate the need to perform a complicated operation of inserting a flush valve into a narrow space such as the heat pump unit 25 or the drying blower 42. As shown in Fig. 6, the operator can display a portion of the extended refrigerant pipe 3 Oa that is linearly piped, by displaying an arrow mark of a refrigerant recovery portion when the main body is discarded, or a display portion 3 Ob such as a character. By setting the refrigerant recovery portion to a specific position, the refrigerant recovery operation can be easily performed. Further, in the case where the refrigerant recovery is performed on the heat pump unit 25', as shown in Fig. 7, a portion of the refrigerant pipe 30a' extending to the vicinity of the back surface opening 15 in the same manner as described above is provided for use. The pipe (storage and discharge) valve 5 1 for recovering or enclosing the refrigerant is not only a recovery connection valve for recovering the refrigerant, but also when the amount of the refrigerant is insufficient and the drying performance of the clothes is lowered, the refrigerant sealing device can be used to replenish the refrigerant. Improves maintainability. When the refrigerant tubes 30, 30a to be used for collecting the refrigerant are faced, they are not limited to the back opening, and may be opened to the opening -15-200809041丨2) formed in the front portion of the casing 2. While the above description is directed to the recovery of the refrigerant at the time of disposal of the washer-dryer, the present invention is not limited thereto, and the condenser 27 or the evaporator 29 on the heat pump unit 25, 25' is housed in: The inside of the unit casing 41 of the circulation air passage 43 which forms the dry air is disposed, and the blade end plates 27b and 29b are disposed outwardly on one side of the unit casing 41, and are compressed outside the unit casing 41. The machine 26 is disposed on the side of the connecting pipes A30 to D33 extending from one side of the blade end plates 27b and 29b, so that the connection portions of the components forming the heat pump refrigeration cycle can be collectively provided in the unit casing 41. The outer side of one side. Therefore, the piping connection work such as welding at the time of manufacturing the heat pump units 25 and 25' can be performed from the side of the unit casing 41, and it is not only capable of improving workability, but also when the gas leaks from the piping and is broken. Maintenance inspection or replenishment of refrigerant, piping connection work, etc. can be easily carried out. The object of the present invention is not limited to a washer-dryer, but can also be applied to a clothes drying device using a heat pump refrigeration cycle such as a special clothes dryer. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic longitudinal cross-sectional view showing a drum type washer-dryer according to an embodiment of the present invention. Fig. 2 is a perspective view showing a state in which a partial component is removed from the back surface of Fig. 1. Fig. 3 is a perspective view of the heat pump unit of Fig. 2 as viewed from the rear. Fig. 4 is a perspective view showing the state in which the outer wall portion is removed from Fig. 2 as seen from the rear of the main portion. -16- 20080904113) The same parts as in Fig. 4 of the embodiment of the invention are shown in Fig. 5. Fig. 5 is a schematic perspective view showing the ## of the present invention. Fig. 6 is a perspective view showing the main female part of the modification of Fig. 5; Fig. 7 is a schematic perspective view showing the same portion as Fig. 4 showing another embodiment of the present invention. Fig. 8 is a rear elevational view showing the construction of a conventional heat pump type clothes dryer. Fig. 9 is a cross-sectional view taken along line A - A of Fig. 8. [Description of main component symbols] 2: Housing 3: Side panel 8: Table 10: Lower frame 11: Back cover 12: Sink 1 5: Back opening 20: Roller 24: Motor 25: Heat pump unit 26: Compressor 27 Condenser 29: evaporator 27a, 29a: refrigerant inlet pipe-17- 200809041丨4) 27b, 29b: blade end plates 30, 31, 32, 33: connecting pipe 3 0 a : extended refrigerant pipe 3 0 b : refrigerant Collection display unit 3 7 : unit base 41 : unit case 42 : drying blower 43 : circulation air path 44 : fan case 51 : pipe (supply discharge) valve -18-