JP2018079173A

JP2018079173A - Washing and drying machine

Info

Publication number: JP2018079173A
Application number: JP2016224643A
Authority: JP
Inventors: 幸久金澤; Yukihisa Kanazawa; 道太菅原; Michita Sugawara; 和田　直樹; Naoki Wada; 直樹和田; 和田　努; Tsutomu Wada; 努和田
Original assignee: Hitachi Appliances Inc
Current assignee: Hitachi Appliances Inc
Priority date: 2016-11-18
Filing date: 2016-11-18
Publication date: 2018-05-24
Anticipated expiration: 2036-11-18
Also published as: JP6640699B2

Abstract

PROBLEM TO BE SOLVED: To solve the problem in which, as a water flow is reverse with respect to the direction of air flowing in a circulation duct, the cooling water is sometimes wound up in the upper side direction due to the circulating air, and an operation thus finishes while a drying filter is still wet, and, therefore, the wound up water remains in the drying filter and at a bottom, and this gives trouble of cleaning and an uncomfortable feeling to a user, so it is not desirable.SOLUTION: A lower end part of a duct cover provided at a circulation duct in which cooling water flows down is made into an inclined shape.SELECTED DRAWING: Figure 6

Description

本発明は衣類等を洗濯した後に乾燥用の空気を供給して衣類を乾燥する洗濯乾燥機に関するものであり、洗濯、すすぎ及び脱水を行う洗濯兼脱水槽に衣類等を乾燥させる暖められた空気を供給し、この空気を循環または機外へ排出させて衣類を乾燥する送風通路を備えた洗濯乾燥機に関するものである。 The present invention relates to a washing / drying machine for drying clothes by supplying air for drying after washing clothes, etc., and warmed air for drying clothes, etc. in a washing / dehydrating tank for washing, rinsing and dehydrating And a washing / drying machine having a ventilation passage for drying the clothes by circulating or discharging the air to the outside of the machine.

洗濯乾燥機による衣類の乾燥は、洗濯兼脱水槽を回転する電動機や送風ファンの電動機等の構成部品から発生する廃熱、及び/或いはヒータ等の専用熱源からの熱を単独、或いは組み合わせて乾燥用の暖かい空気を作り出し、この暖められた空気を送風ファンによって温風の状態にして回転ドラム内の衣類へ高速で吹きつけて“しわ”の発生を抑制しつつ乾燥を行うようにしている。 Drying clothes with a washing dryer is a combination of waste heat generated from components such as an electric motor that rotates the washing and dewatering tub and an electric fan fan, and / or heat from a dedicated heat source such as a heater, alone or in combination. Warm air is produced, and the warmed air is warmed by a blower fan and blown onto clothing in the rotating drum at a high speed so as to suppress the occurrence of “wrinkles” and perform drying.

この時、温風によって衣類の残留水分から蒸発した水蒸気が発生するため、この水蒸気を除去してやることが必要である。 At this time, water vapor evaporated from the residual moisture of the clothing is generated by the warm air, and it is necessary to remove this water vapor.

このための手法として外槽内に配置された循環ダクトの内部に低温度の冷却水を流すことによって、水蒸気を含んだ温風を冷却することで、水蒸気の水分を結露させて水分を除去する水冷除湿方式が提案されている。このような構成の洗濯乾燥機は特開２０１０−８２３４６号公報(特許文献１)にその詳細が説明されている。 As a technique for this purpose, by cooling the warm air containing water vapor by flowing low temperature cooling water inside the circulation duct arranged in the outer tub, the water content of the water vapor is condensed and removed. A water-cooled dehumidification method has been proposed. Details of the washing / drying machine having such a configuration are described in Japanese Patent Application Laid-Open No. 2010-82346 (Patent Document 1).

特開２０１０−８２３４６号公報JP 2010-82346 A

上記特許文献１に記載の洗濯乾燥機は、洗濯兼脱水槽内の脱水が終了した衣類にヒータ等の専用熱源で暖められた空気（以下、風と表現する）を温風吹き出し口から吹き付けるようにしており、洗濯兼脱水槽内を含む送風経路によって風を循環している。 The washing / drying machine described in Patent Document 1 blows air heated by a dedicated heat source such as a heater (hereinafter referred to as wind) from the warm air outlet to the clothes that have been dehydrated in the washing and dewatering tub. The wind is circulated by a ventilation path including the inside of the washing and dewatering tank.

前記送風経路は、送風ファン、熱源、送風ファンと外槽を接続する循環ダクト、送風ファンと温風吹き出し口を接続する送風ダクト等で構成されている。循環ダクトには、衣類から出た水蒸気を含んだ温風を冷却水で冷却することで、水蒸気の水分を結露させて水分を除去する水冷除湿方式を備えている。除湿方法としては前記循環ダクトの上方に設けた冷却ノズルから循環ダクトの壁面に沿って下方向に一定量の水を流す方式としている。循環ダクトを流れる風の向きは下側から上側であるのに対し、水の流れは逆になっている。このため、稀に循環ダクトの成形状態による表面のぬれ性や本体の構造、循環ダクトの形状、風の乱れ方、冷却水の流量や流下状態などで、循環している風により冷却水が上側方向へ巻き上がってしまうことがある。巻き上がった水は、乾燥ダクトの上側に設置されている衣類から出た糸屑を捕集する乾燥フィルタを濡らしてしまい、乾燥フィルタが濡れたまま運転終了している場合がある。 The air blowing path includes a blower fan, a heat source, a circulation duct connecting the blower fan and the outer tub, a blower duct connecting the blower fan and the hot air outlet, and the like. The circulation duct is provided with a water-cooled dehumidification system that condenses moisture in the water vapor and removes the water by cooling the warm air containing water vapor from the clothing with cooling water. As a dehumidifying method, a fixed amount of water is allowed to flow downward from a cooling nozzle provided above the circulation duct along the wall surface of the circulation duct. The direction of the wind flowing through the circulation duct is from the lower side to the upper side, while the water flow is reversed. For this reason, in rare cases, the wetness of the surface due to the molding state of the circulation duct, the structure of the main body, the shape of the circulation duct, the turbulence of the wind, the flow rate of the cooling water and the flow down state, etc. May roll up in the direction. The rolled up water wets the drying filter that collects the lint from the clothes installed on the upper side of the drying duct, and the operation may end with the drying filter wet.

このため、乾燥フィルタ及び乾燥フィルタを収容する部屋の底面に巻き上がった水が残ってしまい、使用者に掃除の手間や不快な思いを招来することとなり好ましくない。 For this reason, the water which rolled up on the bottom face of the room which accommodates a dry filter and a dry filter remains, and it will bring a trouble of a cleaning and an unpleasant feeling to a user, and is unpreferable.

本発明の目的は、循環ダクトの壁面を流れ落ちる冷却水が送風の風により巻き上がらないようにしつつ、安定した除湿を行うことが出来る洗濯乾燥機を提供すことにある。 The objective of this invention is providing the washing-drying machine which can perform dehumidification stably, preventing the cooling water which flows down the wall surface of a circulation duct from rolling up with the wind of ventilation.

本発明の特徴は、その一例として、乾燥時に内部が乾燥室となる外槽と、前記外槽内に回転自在に配置され洗濯物を収容する洗濯兼脱水槽と、前記洗濯兼脱水槽を駆動する電動機を含む駆動手段と、前記外槽を支持し外装を構成する筐体と、前記洗濯兼脱水槽に乾燥用の風を送風するための乾燥機構を備えた洗濯乾燥機において、前記乾燥機構は、前記洗濯兼脱水槽に向けて開口する出口と前記外槽に向けて開口する入口を有する送風通路と、前記送風通路の途中に設けられたヒータ及び風の流れから見て前記ヒータの上流側に設けられた送風ファンと、前記入口と前記送風ファンとの間に設けた循環ダクトと該循環ダクト内に設けた冷却水供給部とで構成され、前記循環ダクトは、前記外槽背面を凹ませて略垂直方向に形成し、前記循環ダクトの前面にダクトカバーを設けて風路を形成し、前記ダクトカバーの下端部の水平方向の形状を上下に傾斜した形状とする。 The features of the present invention include, as an example, an outer tub whose inside becomes a drying chamber during drying, a washing / dehydrating tub that is rotatably arranged in the outer tub and stores laundry, and drives the washing / dehydrating tub In the washing and drying machine, comprising: a driving means including an electric motor, a casing that supports the outer tub and constituting an exterior; and a drying mechanism for blowing air for drying to the washing and dehydrating tub. Is a blower passage having an outlet opening toward the washing and dewatering tub and an inlet opening toward the outer tub, a heater provided in the middle of the blower passage, and an upstream of the heater as viewed from the flow of air. A ventilation fan provided on the side, a circulation duct provided between the inlet and the ventilation fan, and a cooling water supply unit provided in the circulation duct, and the circulation duct includes a rear surface of the outer tub. It is recessed and formed in a substantially vertical direction. The front of the bets is provided a duct cover to form an air passage, a shape of the horizontal shape inclined above and below the lower end of the duct cover.

本発明によれば、循環ダクトの壁面に除湿リブを設けることにより、冷却ノズルから下側壁面に流した冷却水が、循環ダクトを流れる風により巻き上がるのを防止できる。 According to the present invention, by providing the dehumidifying rib on the wall surface of the circulation duct, it is possible to prevent the cooling water flowing from the cooling nozzle to the lower wall surface from being rolled up by the wind flowing through the circulation duct.

本発明のドラム式洗濯乾燥機を示す外観図である。It is an external view which shows the drum type washing-drying machine of this invention. 本発明のドラム式洗濯乾燥機の筐体の一部を切断し内部構造を示す斜視図である。It is a perspective view which cut | disconnects a part of housing | casing of the drum type washing-drying machine of this invention, and shows an internal structure. 本発明のドラム式洗濯乾燥機の筐体の背面カバーを外して内部構造を示す背面図である。It is a rear view which removes the back cover of the housing | casing of the drum type washing-drying machine of this invention, and shows an internal structure. 本発明のドラム式洗濯乾燥機の上面カバーを外して内部構造を示す平面図である。It is a top view which removes the upper surface cover of the drum type washing-drying machine of this invention, and shows an internal structure. 本発明のドラム式洗濯機の内部構造を示す側面図である。It is a side view which shows the internal structure of the drum type washing machine of this invention. 外槽背面内側に設けた循環ダクト部を示す正面図である。It is a front view which shows the circulation duct part provided in the outer back surface inner side. 循環ダクトの断面図である（図６のＡ−Ａ断面）。It is sectional drawing of a circulation duct (AA cross section of FIG. 6). 循環ダクトの断面図である（図６のＢ−Ｂ断面）。It is sectional drawing of a circulation duct (BB cross section of FIG. 6). 図７のＣ−Ｃ断面図で、冷却水ノズル部の詳細図である。It is CC sectional drawing of FIG. 7, and is a detailed view of a cooling water nozzle part. 除湿リブがない場合の循環ダクト内の冷却水の流れを示す模擬図である。It is a simulation figure which shows the flow of the cooling water in a circulation duct when there is no dehumidification rib. 循環ダクト部での空気の流れを示す模式図である。It is a schematic diagram which shows the flow of the air in a circulation duct part. ダクトカバーの下端部の変形例Modification of the lower end of the duct cover

以下、本発明の一実施例を図面に基づき詳細に説明する。先ず洗濯乾燥機の構成について説明する。 Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. First, the configuration of the washing / drying machine will be described.

図１はドラム式洗濯乾燥機の外観図であり、図２は内部の構造を示すために筐体の一部を切断して斜め前方から見た斜視図、図３は内部構造を示すためにカバーを外した背面図、図４は内部構造を示すために上面カバーを外した平面図、図５は内部の構造を示す側面図である。 FIG. 1 is an external view of a drum-type washer / dryer, FIG. 2 is a perspective view of a case in which a part of the casing is cut to show the internal structure, and obliquely viewed from the front, and FIG. 4 is a rear view with the cover removed, FIG. 4 is a plan view with the top cover removed to show the internal structure, and FIG. 5 is a side view showing the internal structure.

各図において、参照番号１は外郭を構成する筐体であり、筐体１は四角形状のベース１ｈの上に取り付けられており、左右の側板１ａ、１ｂ、前面カバー１ｃ、背面カバー１ｄ、上面カバー１ｅ、下部前面カバー１ｆで構成されている。 In each figure, reference numeral 1 is a casing constituting an outer shell, and the casing 1 is mounted on a rectangular base 1h, and includes left and right side plates 1a, 1b, a front cover 1c, a back cover 1d, and an upper surface. It is composed of a cover 1e and a lower front cover 1f.

左右の側板１ａ、１ｂはコの字型の上補強材１ｊ、前補強材１ｋ、後補強材１ｇで結合されており、ベース１ｈを含めて箱状の筐体１を形成し、筐体として十分な強度を有している。 The left and right side plates 1a and 1b are connected by a U-shaped upper reinforcing member 1j, a front reinforcing member 1k, and a rear reinforcing member 1g, and form a box-like casing 1 including a base 1h. It has sufficient strength.

参照番号９は前面カバー１ｃの略中央に設けた衣類を出し入れするための投入口を塞ぐドアで、前補強材に設けたヒンジで開閉可能に支持されている。ドアに設けられたドア開放レバー９ｄを握るとロック機構（図示せず）が外れてドア９が開き、ドア９を前面カバー１ｃに押し付けることでロックされて閉じられる。 Reference numeral 9 is a door that closes the insertion port for putting in and out the clothing provided in the approximate center of the front cover 1c, and is supported by a hinge provided in the front reinforcing member so as to be opened and closed. When a door release lever 9d provided on the door is gripped, a lock mechanism (not shown) is released to open the door 9, and the door 9 is locked and closed by pressing the door 9 against the front cover 1c.

参照番号６は筐体１の上部右側に設けた操作パネルで、電源スイッチ１２、操作スイッチ１３、及び表示器１４を備えており、操作パネル６は筐体１上部に設けた制御装置１１に電気的に接続している。 Reference numeral 6 is an operation panel provided on the upper right side of the housing 1 and includes a power switch 12, an operation switch 13, and a display 14. The operation panel 6 is electrically connected to the control device 11 provided on the upper portion of the housing 1. Connected.

参照番号３は回転可能に支持された円筒状の洗濯兼脱水槽（回転ドラム）であり、その外周壁および底壁に通水および通風のための多数の貫通孔を有し、前側端面に衣類を出し入れするための開口部３ａを設けてある。 Reference numeral 3 is a cylindrical washing / dehydrating tub (rotary drum) supported in a rotatable manner, and has a large number of through holes for water flow and ventilation on its outer peripheral wall and bottom wall, and clothing on the front end face. Is provided with an opening 3a.

開口部３ａの外側には洗濯兼脱水槽３と一体の流体バランサ３ｃを備えている。外周壁の内側には軸方向に延びるリフタ３ｂが複数個設けてあり、洗濯、乾燥時に洗濯兼脱水槽３を回転すると、衣類はリフタ３ｂと遠心力で外周壁に沿って持ち上がり、重力で落下するように動きを繰り返す。洗濯兼脱水槽３の回転中心軸は、水平または開口部３ａ側が高くなるように傾斜している。 A fluid balancer 3c integrated with the washing and dewatering tub 3 is provided outside the opening 3a. A plurality of lifters 3b extending in the axial direction are provided inside the outer peripheral wall. When the washing and dewatering tub 3 is rotated during washing and drying, the clothes are lifted along the outer peripheral wall by the lifter 3b and centrifugal force, and dropped by gravity. Repeat the movements. The rotation center axis of the washing and dewatering tub 3 is inclined so that the horizontal or opening 3a side becomes higher.

参照番号２は円筒状の外槽であり、洗濯兼脱水槽３を同軸上に内包し、前面は開口し、後側端面の外側中央にモータ４を取り付ける。モータ４の回転軸は、外槽２を貫通し、洗濯兼脱水槽３の底壁中央と結合している。 Reference numeral 2 denotes a cylindrical outer tub, which includes a washing and dewatering tub 3 coaxially, has a front surface opened, and a motor 4 attached to the outer center of the rear end surface. The rotating shaft of the motor 4 passes through the outer tub 2 and is connected to the center of the bottom wall of the washing / dehydrating tub 3.

前面の開口部には外槽カバー２ｄを設け、外槽内への貯水を可能としている。外槽カバー２ｄの前側中央には、衣類を出し入れするための開口部２ｃを有している。本開口部２ｃと前補強材に設けた開口部はゴム製のベローズ１０で接続しており、ドア９を閉じることで外槽２を水封する。 An outer tub cover 2d is provided at the opening on the front surface, and water can be stored in the outer tub. In the center of the front side of the outer tub cover 2d, there is an opening 2c for taking in and out clothing. The opening provided in the main opening 2c and the front reinforcing member is connected by a rubber bellows 10, and the outer tub 2 is sealed with water by closing the door 9.

外槽２底面最下部には排水口２ｂが設けてあり、排水ホース２６が接続している。排水ホース２６の途中には排水弁２５が設けてあり、排水弁を閉じて給水することで外槽２に水を溜め、排水弁を開いて外槽２内の水を機外へ排出する。外槽カバー２ｄの前側外周部にはオーバーフロー口２ｅを有しており、オーバーフローホースで排水弁２５の下流側で排水ホース２６に接続している。 A drain outlet 2b is provided at the bottom bottom of the outer tub 2 and a drain hose 26 is connected thereto. A drainage valve 25 is provided in the middle of the drainage hose 26. Water is stored in the outer tub 2 by closing the drainage valve and supplying water, and the drainage valve is opened to discharge the water in the outer tub 2 to the outside of the machine. The outer peripheral cover 2d has an overflow port 2e on the front outer peripheral portion, and is connected to the drain hose 26 on the downstream side of the drain valve 25 with an overflow hose.

外槽２は、下側をベース１ｈに固定されたサスペンション５（コイルばねとダンパで構成）で防振支持されている。また、外槽２の上側は上部補強部材に取り付けた補助ばね（図示せず）で支持されており、外槽２の前後方向へ倒れを防ぐ。 The outer tub 2 is supported in a vibration-proof manner by a suspension 5 (consisting of a coil spring and a damper) whose lower side is fixed to the base 1h. The upper side of the outer tub 2 is supported by an auxiliary spring (not shown) attached to the upper reinforcing member, and prevents the outer tub 2 from falling in the front-rear direction.

参照番号１９は筐体１内の上部左側手前に設けた洗剤容器で、その上に開閉式のフタ７があり、その中に洗剤容器１９を装着する。開閉式のフタ７は、下に押すことでフタ７のロックが解除され、バネ（図示せず）の力で図２中二点点鎖線で示すように開く。洗剤容器１９は筐体１の上補強材に固定されている。洗剤容器１９は、複数の部屋に仕切られており、粉末洗剤、液体洗剤、柔軟仕上げ剤などを投入できるようになっている。 Reference numeral 19 is a detergent container provided in front of the upper left side in the housing 1, and there is an openable lid 7 on which a detergent container 19 is mounted. The openable lid 7 is unlocked by pushing down, and is opened by a spring (not shown) as shown by a two-dot chain line in FIG. The detergent container 19 is fixed to the upper reinforcing material of the housing 1. The detergent container 19 is partitioned into a plurality of rooms so that powder detergents, liquid detergents, softeners, and the like can be input.

洗剤容器１９の後ろ側には、給水電磁弁１６や風呂水給水ポンプ１７、水位センサ（図示せず）など給水に関連する部品を設けてある。上面カバー１ｅには、水道栓からの給水ホース接続口１６ａ、風呂の残り湯の吸水ホース接続口１７ａが設けてある。給水電磁弁１６は、洗剤給水弁、柔軟仕上げ剤給水弁、冷却水給水弁、ダクト洗浄水給水弁など複数の弁で構成されている。洗剤給水弁と洗剤容器１９の洗剤投入室と、柔軟仕上げ剤給水弁は洗剤容器１９の柔軟剤投入室と給水ホースで接続されている。洗剤容器１９は、外槽２にゴム蛇腹（図示せず）を介して接続されており、洗剤給水電磁弁や柔軟仕上げ剤給水弁を開く、あるいは風呂水給水ポンプを運転することで、外槽２に洗濯水を供給する。 On the back side of the detergent container 19, components related to water supply such as a water supply electromagnetic valve 16, a bath water supply pump 17, and a water level sensor (not shown) are provided. The top cover 1e is provided with a water supply hose connection port 16a from a water tap and a water absorption hose connection port 17a for remaining hot water in the bath. The water supply electromagnetic valve 16 includes a plurality of valves such as a detergent water supply valve, a softener water supply valve, a cooling water water supply valve, and a duct cleaning water water supply valve. The detergent water supply valve and the detergent charging chamber of the detergent container 19 and the softening agent water supply valve are connected to the softener charging chamber of the detergent container 19 by a water supply hose. The detergent container 19 is connected to the outer tub 2 via a rubber bellows (not shown), and opens the detergent water supply electromagnetic valve and the softening agent water supply valve, or operates the bath water supply pump to operate the outer tub. 2 is supplied with washing water.

参照番号２９は外槽２の背面内側を凹ませて縦方向に設置した循環ダクトであり、循環ダクト下部は外槽２の背面下方まで通っている。循環ダクト２９を覆うように外槽２の背面内側面と略面一となるようにダクトカバー２３を取り付けることで、循環ダクト２９に風が流れる風路が構成される。ダクトカバー２３の縦方向長さは、循環ダクト２９の縦方向長さより短くしてあり、循環ダクト２９の下方に空気の吸気口２ａを形成している。循環ダクト２９内の上側には、水冷除湿機構２１を内蔵しており、冷却水ホース２２で冷却水給水電磁弁と接続され、給水電磁弁を開くことで水冷除湿機構２１へ冷却水を供給する。冷却水は循環ダクト２９の壁面を伝わって流下し吸気口２ａから外槽２に入り排水口２ｂから排出される。循環ダクト２９や水冷除湿機構２１の詳細については、後で説明する。 Reference numeral 29 is a circulation duct installed in the vertical direction with the back inner side of the outer tub 2 recessed, and the lower part of the circulation duct passes to the lower back of the outer tub 2. By attaching the duct cover 23 so as to be substantially flush with the inner surface of the back surface of the outer tub 2 so as to cover the circulation duct 29, an air path through which the wind flows is formed in the circulation duct 29. The longitudinal length of the duct cover 23 is shorter than the longitudinal length of the circulation duct 29, and an air inlet 2 a is formed below the circulation duct 29. A water-cooled dehumidifying mechanism 21 is built in the upper side of the circulation duct 29 and is connected to a cooling water supply electromagnetic valve by a cooling water hose 22 and the cooling water is supplied to the water-cooling dehumidifying mechanism 21 by opening the water supply electromagnetic valve. . The cooling water flows down along the wall surface of the circulation duct 29, enters the outer tank 2 through the intake port 2a, and is discharged from the drain port 2b. Details of the circulation duct 29 and the water-cooled dehumidifying mechanism 21 will be described later.

循環ダクト２９の上部は、筐体１内の後方上部に斜方向に設置したフィルタダクト２７にゴム蛇腹２４で接続している。フィルタダクト２７のゴム蛇腹２４接続部の上側には洗浄水給水口を設けてあり、洗浄ホースでダクト洗浄水給水電磁弁と接続されている。ダクト洗浄水給水電磁弁を開くことで、ゴム蛇腹２４内や循環ダクト２９内に洗浄水を供給する。洗浄水はゴム蛇腹２４や循環ダクト２９の壁面を伝わって流れ、これらの壁面に付着した埃を流し落とす。フィルタダクト２７の上面には開口部を有しており、この開口部に引き出し式の乾燥フィルタ８を挿入してある。 The upper part of the circulation duct 29 is connected to a filter duct 27 installed obliquely on the rear upper part in the housing 1 by a rubber bellows 24. A cleaning water supply port is provided above the rubber bellows 24 connection portion of the filter duct 27 and is connected to the duct cleaning water supply electromagnetic valve by a cleaning hose. The cleaning water is supplied into the rubber bellows 24 and the circulation duct 29 by opening the duct cleaning water supply electromagnetic valve. The washing water flows along the wall surfaces of the rubber bellows 24 and the circulation duct 29, and the dust attached to these wall surfaces is washed away. The upper surface of the filter duct 27 has an opening, and a drawer-type drying filter 8 is inserted into the opening.

循環ダクト２９からフィルタダクト２７へ入った空気は、乾燥フィルタ８のメッシュフィルタ８ａに流入し糸くずが除去される。乾燥フィルタ８の掃除は、乾燥フィルタ８を引き出して手やブラシ、または掃除機等で行い、メッシュ式のフィルタ８ａ表面に付着した糸くずを取り除く。フィルタダクト２７の乾燥フィルタ８挿入部の側面には開口部が設けてあり、この開口部は送風ユニット２８の吸気口と接続している。 The air that has entered the filter duct 27 from the circulation duct 29 flows into the mesh filter 8a of the drying filter 8, and the lint is removed. The dry filter 8 is cleaned by pulling out the dry filter 8 and using a hand, a brush, or a vacuum cleaner to remove lint attached to the surface of the mesh filter 8a. An opening is provided on the side surface of the filter duct 27 where the dry filter 8 is inserted, and this opening is connected to the air inlet of the blower unit 28.

送風ユニット２８は、駆動用のモータ２８ａ、ファン羽根車（図示せず）、ファンケース２８ｂで構成されている。ファンケース２８ｂにはヒータ３１が内蔵されており、ファン羽根車から送られる空気を加熱する。 The blower unit 28 includes a drive motor 28a, a fan impeller (not shown), and a fan case 28b. The fan case 28b incorporates a heater 31 and heats air sent from the fan impeller.

ヒータ３１は、入力切り換えが可能で、本実施例のヒータでは強モードと弱モードを有している。送風ユニット２８の吐出口は温風ダクト３０に接続する。温風ダクト３０は、ゴム製の蛇腹管３０ａ、蛇腹管継ぎ手３０ｂを介して外槽カバー２ｄに設けた前部吹出し口３２に接続している。 The heater 31 can be switched between inputs, and the heater of this embodiment has a strong mode and a weak mode. The discharge port of the blower unit 28 is connected to the hot air duct 30. The hot air duct 30 is connected to a front outlet 32 provided in the outer tank cover 2d through a rubber bellows tube 30a and a bellows tube joint 30b.

本実施例では、送風ユニット２８が筐体１内の上部右側に設けてあるので、前部吹出し口３２は外槽カバー２ｄの右斜め上の位置に設け、前部吹出し口３２までの距離を極力短くするようにし、圧力損失や熱の逃げを最小限にしてある。 In this embodiment, since the blower unit 28 is provided on the upper right side in the housing 1, the front outlet 32 is provided at a position on the upper right side of the outer tank cover 2d, and the distance to the front outlet 32 is set. It is made as short as possible to minimize pressure loss and heat escape.

排水口２ｂ、送風ユニット２８の吸気口及び吐出口には温度センサ（図示せず）が設けてある。 Temperature sensors (not shown) are provided at the outlet 2b and the inlet and outlet of the blower unit 28.

以上が洗濯乾燥機のおおよその構成であり、乾燥時の循環空気の流れを太い矢印の流線で示す。送風ユニット２８を運転し、ヒータ３１に通電すると、前部吹き出し口３２から洗濯兼脱水槽３内に温風が吹き込み（矢印４１）、湿った衣類に当たり、衣類を温め衣類から水分が蒸発する。乾燥運転中は、洗濯兼脱水槽３を正逆回転させているので、衣類はリフタ３ｂにより前部吹き出し口３２の付近まで持ち上がり落下する動きを繰り返し、衣類に温風が万遍なく当たる。衣類から蒸発した水分を含んで高温多湿となった空気は、洗濯兼脱水槽３に設けた貫通孔から外槽２に流れ、吸気口２ａから循環ダクト２９に吸い込まれ、循環ダクト２９を下から上へ流れる（矢印４２）。循環ダクト２９の壁面には、水冷除湿機構２１からの冷却水が流れ落ちており、高温多湿の空気は冷却水と接触することで冷却除湿され、乾いた低温空気となりフィルタダクト２７へ入る（矢印４３）。フィルタダクト２７に設けた乾燥フィルタ８のメッシュフィルタ８ａを通り糸くずが取り除かれ、吸気ダクト３３に入り、送風ユニット２８に吸い込まれる（矢印４４）。そして、ヒータ３１で再度加熱され、洗濯兼脱水槽３内に吹き込むように循環する。 The above is the approximate configuration of the washing / drying machine, and the flow of circulating air during drying is indicated by the flow lines of thick arrows. When the blower unit 28 is operated and the heater 31 is energized, warm air blows into the washing and dewatering tub 3 from the front outlet 32 (arrow 41), hits the wet clothing, warms the clothing, and moisture evaporates from the clothing. During the drying operation, since the washing and dewatering tub 3 is rotated forward and backward, the clothes are repeatedly lifted and dropped by the lifter 3b to the vicinity of the front outlet 32, and hot air is uniformly applied to the clothes. Air that has become hot and humid, including moisture evaporated from the clothes, flows into the outer tub 2 from the through hole provided in the washing and dewatering tub 3, and is sucked into the circulation duct 29 from the intake port 2a. Flows upward (arrow 42). Cooling water from the water cooling and dehumidifying mechanism 21 flows down on the wall surface of the circulation duct 29, and the hot and humid air is cooled and dehumidified by coming into contact with the cooling water, and becomes dry low temperature air and enters the filter duct 27 (arrow 43). ). The lint is removed through the mesh filter 8a of the drying filter 8 provided in the filter duct 27, enters the intake duct 33, and is sucked into the blower unit 28 (arrow 44). Then, it is heated again by the heater 31 and circulates so as to blow into the washing and dewatering tub 3.

次に本発明になる循環ダクト２９の除湿リブ構造及び水冷除湿機構について図６から図９を用いて説明する。 Next, the dehumidifying rib structure and the water-cooled dehumidifying mechanism of the circulation duct 29 according to the present invention will be described with reference to FIGS.

図６は外槽背面内側に設けた循環ダクト正面図で、（ａ）はダクトカバーを取り付けた状態を、（ｂ）はダクトカバーを取り外した状態を示している。図７は図６のＡ−Ａ断面図、図８は図６のＢ−Ｂ断面図、図９は図７のＣ−Ｃ断面図である。 FIGS. 6A and 6B are front views of the circulation duct provided inside the outer back surface of the outer tank. FIG. 6A shows a state where the duct cover is attached, and FIG. 6B shows a state where the duct cover is removed. 7 is a cross-sectional view taken along line AA of FIG. 6, FIG. 8 is a cross-sectional view taken along line BB of FIG. 6, and FIG. 9 is a cross-sectional view taken along line CC of FIG.

循環ダクト２９は、上述したように外槽２の背面を凹ませて、背面の径方向の垂直中心軸から水平方向にずれた位置に略垂直方向に形成されている。循環ダクト２９の水平断面形状は、図８に示すように外槽２の背面後ろ側に飛び出した矩形状で、左右の壁面２９ａ、２９ｂと底面２９ｃとで囲まれ、外槽２の内側は開口している。この開口部２９ｄを覆うようにダクトカバー２３を外槽２の背面に取り付けることで、４面で囲まれた風路２９ｅを形成している。なお、外槽２の内側面とダクトカバー２３の表面はほぼ面一にしてあり、洗濯兼脱水槽３が高速回転する脱水時に発生する風の流れによる風損や騒音の増加を抑えている。ダクトカバー２３は、開口部２９ｄの上下方向長さより短くし、循環ダクト２９の下方に吸気口２ａを設けてある。また、ダクトカバー２３の下端部２３ａの形状は、内周側より外周側の方が下方に長くなるよう階段状に形成してある。循環ダクト２９の底面２９ｃの深さは、循環ダクト２９の下部で徐々に浅くなり、外槽２の背面の内側面にスムーズに接続している。また、循環ダクト２９の下部は略垂直であるが、上部で外槽２の垂直中心軸側に曲がるように形成してある。これは、円形の外槽２の底部外周と循環ダクト２９との距離を保つためと、フィルタダクト２７や乾燥フィルタ８、送風ユニット２８などを筐体１内の右上部空間内にコンパクト収容するためである。すなわち、フィルタダクト２７と乾燥フィルタ８を筐体１内の中央寄りに設置し、その外側（側板１ａ側）に並べて送風ユニット２８を設置することが可能となり、前後方向、幅方向ともにコンパクトに実装できる。 As described above, the circulation duct 29 is formed in a substantially vertical direction at a position where the rear surface of the outer tub 2 is recessed and shifted in the horizontal direction from the vertical central axis in the radial direction of the rear surface. As shown in FIG. 8, the horizontal cross-sectional shape of the circulation duct 29 is a rectangular shape protruding to the rear rear side of the outer tub 2, surrounded by the left and right wall surfaces 29 a and 29 b and the bottom surface 29 c, and the inner side of the outer tub 2 is open. doing. By attaching the duct cover 23 to the back surface of the outer tub 2 so as to cover the opening 29d, an air passage 29e surrounded by four surfaces is formed. The inner surface of the outer tub 2 and the surface of the duct cover 23 are almost flush with each other, and the increase in windage loss and noise due to the flow of wind generated during dehydration when the washing and dewatering tub 3 rotates at high speed is suppressed. The duct cover 23 is shorter than the length in the vertical direction of the opening 29 d, and the intake port 2 a is provided below the circulation duct 29. Moreover, the shape of the lower end part 23a of the duct cover 23 is formed in the step shape so that the outer peripheral side may become longer below the inner peripheral side. The depth of the bottom surface 29 c of the circulation duct 29 gradually becomes shallow at the lower part of the circulation duct 29 and is smoothly connected to the inner side surface of the back surface of the outer tub 2. In addition, the lower part of the circulation duct 29 is substantially vertical, but the upper part is formed to bend toward the vertical central axis side of the outer tub 2. This is to maintain the distance between the outer periphery of the bottom of the circular outer tub 2 and the circulation duct 29 and to compactly accommodate the filter duct 27, the drying filter 8, the blower unit 28, and the like in the upper right space in the housing 1. It is. In other words, the filter duct 27 and the dry filter 8 can be installed closer to the center of the housing 1 and the blower unit 28 can be installed side by side on the outside (side plate 1a side). it can.

循環ダクト２９の底面２９ｃには、左右の壁面２９ａ、２９ｂとほぼ平行に凸状の複数本の除湿リブ２９ｆが形成されている。循環ダクト２９の最上部には、水冷除湿機構２１が内蔵されている。水冷除湿機構２１は、内部に冷却水の分配部（空洞）２１ａを有し、分配部２１ａの上面に冷却水給水電磁弁からの冷却水ホースの接続口２１ｃが設けてある。分配部の下面は水平になっており、複数個の冷却水ノズル（小孔）２１ｂが一列に並べて形成されている。除湿リブ２９ｆは、冷却水ノズル２１ｂの出口とほぼ同じ位置まで形成してある。本実施例では、冷却水ノズル２１ｂの数が４個、除湿リブ２９ｆの本数が８本の場合について示してある。除湿リブ２９ｆの間隔は、上部では広いが途中から一定の間隔となっており、冷却水が流れる４本の流路２２ａから２２ｄが形成されている。冷却水ノズル２１ｂは、各流路の左側の除湿リブの近傍に設けてあり、かつ、冷却水ノズル２１ｂは循環ダクト２９の底面２９ｃに向かい開口している。冷却水ノズル２１ｂから出た冷却水は、冷却水の表面張力で左側の除湿リブに沿って流下し、途中から左右の除湿リブ間を蛇行しながら流下する。このため、冷却水ノズル２１ｂから出た冷却水が風で巻き上げられることがない。さらに、循環ダクト２９の下側から流れてくる乾燥用の空気に含まれる糸くずなどのごみが冷却水ノズル２１ｂの小孔を塞ぐことがない。除湿リブ２９ｆの間隔と高さは、流下する冷却水が除湿リブ２９ｆを越えないように設定してある。例えば、本実施例の冷却水給水電磁弁の流量は、水道水圧により０．２Ｌ／ｍｉｎから０．５Ｌ／ｍｉｎの間で変化するが、最大流量０．５Ｌ／ｍｉｎでも除湿リブ２９ｆを越えないよう、流路２２ａから２２ｄの幅ｓを３乃至５ｍｍ、除湿リブ２９ｆの高さｈを３乃至５ｍｍとしてある。 On the bottom surface 29c of the circulation duct 29, a plurality of convex dehumidifying ribs 29f are formed substantially parallel to the left and right wall surfaces 29a and 29b. A water-cooled dehumidifying mechanism 21 is built in the uppermost part of the circulation duct 29. The water-cooled dehumidifying mechanism 21 has a cooling water distribution part (cavity) 21a inside, and a cooling water hose connection port 21c from the cooling water supply electromagnetic valve is provided on the upper surface of the distribution part 21a. The lower surface of the distribution unit is horizontal, and a plurality of cooling water nozzles (small holes) 21b are formed in a line. The dehumidifying rib 29f is formed to substantially the same position as the outlet of the cooling water nozzle 21b. In this embodiment, the number of cooling water nozzles 21b is four and the number of dehumidifying ribs 29f is eight. The interval between the dehumidifying ribs 29f is wide at the upper part but is constant from the middle, and four flow paths 22a to 22d through which cooling water flows are formed. The cooling water nozzle 21 b is provided in the vicinity of the dehumidifying rib on the left side of each flow path, and the cooling water nozzle 21 b opens toward the bottom surface 29 c of the circulation duct 29. The cooling water exiting from the cooling water nozzle 21b flows down along the left dehumidifying rib due to the surface tension of the cooling water, and flows down while meandering between the left and right dehumidifying ribs. For this reason, the cooling water which came out of the cooling water nozzle 21b is not wound up with a wind. Further, dust such as lint contained in the drying air flowing from the lower side of the circulation duct 29 does not block the small hole of the cooling water nozzle 21b. The interval and height of the dehumidifying ribs 29f are set so that the cooling water flowing down does not exceed the dehumidifying ribs 29f. For example, the flow rate of the cooling water supply electromagnetic valve of this embodiment varies between 0.2 L / min and 0.5 L / min depending on the tap water pressure, but does not exceed the dehumidifying rib 29f even at the maximum flow rate of 0.5 L / min. Thus, the width s of the flow paths 22a to 22d is 3 to 5 mm, and the height h of the dehumidifying rib 29f is 3 to 5 mm.

ここで、除湿リブ２９ｆの効果を説明するために、除湿リブがない場合の冷却水の流下状態を図１０を用いて説明する（図中の実線矢印が冷却水の流れを示す）。複数個設けられている冷却ノズル２１ｂの穴から出た冷却水は、循環ダクト２９の底面２９ｃの表面に沿って流下する。冷却水の流れ方方向は基本的には下向きであるが、左右に蛇行しながら流下し、蛇行の状態は時々刻々変化し、時には冷却水が合流する場合もある。また、循環ダクト２９の上部は外槽２の垂直中心軸側に曲がるように形成してあるため、循環ダクト２９の左壁面２９ｂの上部２９ｂ１の上方に、複数個の冷却ノズル２１ｂの一部が配置されることになる。図１０の例では、４個の冷却水ノズルのうちの２個が左壁面２９ｂ１の上方に位置している。このため、冷却ノズル２１ｂから流下する冷却水の一部は、左壁面２９ｂ１に集まってしまい、左壁面に沿って流下する可能性が高い。このようになると、循環ダクト２９の壁面を冷却水で有効に冷却できなくなり、高温多湿の温風の除湿量が減り、乾燥効率が低下してしまう。また、上記曲り部において、流れ方向が下向きに変化するが、複数本の冷却水が集中して流量が増えると、左壁面２９ｂから流れが剥離しやすい。このとき、循環ダクト内を下から流れる風（破線矢印４５）により冷却水の一部がが壁面から剥離して巻き上げられてしまい、風とともに流されて乾燥フィルタ８に飛散し、さらに乾燥効率を低下させてしまう。さらに、乾燥終了時に乾燥フィルタ８やフィルタダクト２７の底面に巻き上がった水が残ってしまい、使用者に掃除の手間や不快な思いを招くこととなる。 Here, in order to explain the effect of the dehumidifying rib 29f, the flowing state of the cooling water when there is no dehumidifying rib will be described with reference to FIG. 10 (the solid line arrow in the figure indicates the flow of the cooling water). The cooling water coming out of the holes of the plurality of cooling nozzles 21 b flows down along the surface of the bottom surface 29 c of the circulation duct 29. Although the cooling water flow direction is basically downward, it flows down while meandering to the left and right, the meandering state changes from moment to moment, and sometimes the cooling water merges. Further, since the upper part of the circulation duct 29 is formed to bend toward the vertical central axis side of the outer tub 2, a part of the plurality of cooling nozzles 21b is located above the upper part 29b1 of the left wall surface 29b of the circulation duct 29. Will be placed. In the example of FIG. 10, two of the four cooling water nozzles are located above the left wall surface 29b1. For this reason, part of the cooling water flowing down from the cooling nozzle 21b collects on the left wall surface 29b1 and is likely to flow down along the left wall surface. If it becomes like this, it will become impossible to cool the wall surface of the circulation duct 29 effectively with cooling water, the dehumidification amount of hot air with high temperature and humidity will decrease, and drying efficiency will fall. In the bent portion, the flow direction changes downward. However, when a plurality of cooling water concentrates and the flow rate increases, the flow tends to be separated from the left wall surface 29b. At this time, a part of the cooling water is peeled off from the wall surface by the wind (broken arrow 45) flowing from below in the circulation duct and is rolled up and scattered along with the wind and scattered on the drying filter 8, further improving the drying efficiency. It will decrease. Furthermore, the water that has rolled up on the bottom surface of the drying filter 8 and the filter duct 27 remains at the end of drying, which causes the user to have trouble in cleaning and unpleasant feelings.

ダクトカバーの形状による冷却水の巻き上げについて、図１１を用いて説明する。図１１は、外槽３の底面を示す正面図である。図中二点鎖線は洗濯兼脱水槽３である。破線矢印４２は循環ダクト２９へ流入する風の流れを示す。洗濯兼脱水槽３は、乾燥運転中に左右方向に回転方向を反転させている。この時、洗濯兼脱水槽３と外槽２との間のすき間（外周及び背面）に洗濯兼脱水槽３の回転による風の流れが発生する。洗濯兼脱水槽３が左回転する場合は、回転によりすき間を流れる風は反時計回りであり、吸気口２ａから循環ダクト２９内に流入する風の流れ（破線矢印４２）とほぼ同方向であり、風はスムーズに循環ダクト２９に流入する。一方、洗濯兼脱水槽３が右回転する場合は、回転によりすき間を流れる風は、実線矢印５１で示すように時計回りであり、破線矢印４２と反対向きである。このため、吸気口２ａ付近でドラム回転による風の流れ方向が急激に変化し、風の流れに乱れが発生する。特に、ダクトカバー２３の下端２３ｂ近傍での乱れが大きく、下端２３ｂの形状が水平で直線状の場合、乱れが集中するため除湿リブ２９ｆ間を流下する冷却水が風の乱れにより除湿リブ２９ｆ間からあふれ、巻き上げられてしまう場合がある。 The cooling water roll-up according to the shape of the duct cover will be described with reference to FIG. FIG. 11 is a front view showing the bottom surface of the outer tub 3. The two-dot chain line in the figure is the washing and dewatering tank 3. A broken line arrow 42 indicates the flow of wind flowing into the circulation duct 29. The washing / dehydrating tub 3 is rotated in the left-right direction during the drying operation. At this time, a wind flow due to the rotation of the washing and dewatering tub 3 is generated in the gap (outer periphery and back surface) between the washing and dewatering tub 3 and the outer tub 2. When the washing and dewatering tub 3 rotates counterclockwise, the wind flowing through the gap due to the rotation is counterclockwise, and is almost in the same direction as the flow of wind flowing into the circulation duct 29 from the air inlet 2a (broken arrow 42). The wind flows smoothly into the circulation duct 29. On the other hand, when the washing and dewatering tub 3 rotates to the right, the wind flowing through the gap due to the rotation is clockwise as indicated by the solid line arrow 51 and opposite to the broken line arrow 42. For this reason, the flow direction of the wind due to the drum rotation changes abruptly in the vicinity of the intake port 2a, and the wind flow is disturbed. In particular, when the disturbance in the vicinity of the lower end 23b of the duct cover 23 is large and the shape of the lower end 23b is horizontal and linear, the disturbance concentrates, so that the cooling water flowing between the dehumidifying ribs 29f flows between the dehumidifying ribs 29f due to the disturbance of the wind. May overflow and roll up.

これに対して、本実施例においては、各冷却水ノズル２１ｂからの冷却水は、各々が複数本の除湿リブ２９ｆで形成される流路２２ａから２２ｄ内に分配されて流下する。このため、冷却水は循環ダクト２９の底面２９ｃの広い面積を流下するため、除湿性能が悪化することがない。さらに、上述のように冷却水が除湿リブ２９ｆを越えないように流路２２ａから２２ｄの寸法としているため、冷却水が風で巻き上げられることがない。流路２２から２２ｄの左右に除湿リブを設けてあるため、除湿リブの壁面と冷却水との界面張力で、冷却水が除湿リブの壁面から剥離しにくいといる利点もある。 On the other hand, in the present embodiment, the cooling water from each cooling water nozzle 21b is distributed and flows down into the flow paths 22a to 22d each formed by a plurality of dehumidifying ribs 29f. For this reason, since cooling water flows down the wide area of the bottom face 29c of the circulation duct 29, dehumidification performance does not deteriorate. Furthermore, since the dimensions of the flow paths 22a to 22d are set so that the cooling water does not exceed the dehumidifying ribs 29f as described above, the cooling water is not wound by wind. Since the dehumidifying ribs are provided on the left and right sides of the flow paths 22 to 22d, there is an advantage that the cooling water is not easily separated from the wall surfaces of the dehumidifying ribs due to the interface tension between the wall surfaces of the dehumidifying ribs and the cooling water.

また、ダクトカバー２３の下端部２３ａの形状を階段状とすることで、風の流れ方向が変化する位置が分散されるため、風の乱れが集中せず、除湿リブ２９ｆ間を流下する冷却水を巻き上げることがない。なお、下端部２３ａの形状は、上記の階段状に限らず、例えば図１２に示したような、円弧状（ａ）や斜めの直線状（ｂ）などでもよい。 Moreover, since the position where the flow direction of the wind changes is dispersed by making the shape of the lower end 23a of the duct cover 23 stepwise, the cooling water that flows down between the dehumidifying ribs 29f does not concentrate the wind turbulence. Does not roll up. Note that the shape of the lower end 23a is not limited to the stepped shape described above, and may be, for example, an arc shape (a) or an oblique straight line shape (b) as shown in FIG.

循環ダクト２９の冷却水の流下面（本実施例では底面２９ｃ）に、図７で示すような曲がり部がる場合、冷却水が曲がり部で循環ダクト２９の底面２９ｃから剥離し、冷却水の巻き上がりの可能性がある。この場合、曲がり部をなだらかな曲線で形成することで、冷却水の流れ方向の急な変化を抑え、冷却水の剥離を防止できる。また、本実施例では、除湿リブ２９ｆも循環ダクト２９に沿って曲がっている。この場合、冷却水が流れ方向変化による慣性力で除湿リブ２９ｆを越えないよう、曲がり部の除湿リブ２９ｆの高さを高くするとよい。 When the bent portion as shown in FIG. 7 is formed on the flow surface of the cooling water in the circulation duct 29 (the bottom surface 29c in this embodiment), the cooling water is peeled off from the bottom surface 29c of the circulation duct 29 at the bent portion. There is a possibility of rolling up. In this case, by forming the bent portion with a gentle curve, it is possible to suppress a sudden change in the flow direction of the cooling water and prevent the cooling water from peeling off. In the present embodiment, the dehumidifying rib 29 f is also bent along the circulation duct 29. In this case, it is preferable to increase the height of the dehumidifying rib 29f at the bent portion so that the cooling water does not exceed the dehumidifying rib 29f due to the inertial force due to the flow direction change.

なお、本実施例では、循環ダクトの壁面に凸形状の除湿リブを設け、除湿リブで冷却水の流路を形成したが、循環ダクト壁面を凹ませて流路を形成してもよい。 In this embodiment, convex dehumidifying ribs are provided on the wall surface of the circulation duct, and the flow path of the cooling water is formed by the dehumidification ribs. However, the flow path may be formed by denting the wall surface of the circulation duct.

以上に述べたように、本発明においては循環ダクトを流下する冷却水が風で巻き上がることがなく、かつ除湿ダクトの壁面の広い範囲を安定して冷却水が流下し、安定した除湿性能の洗濯乾燥機を提供することができる。 As described above, in the present invention, the cooling water flowing down the circulation duct does not wind up with the wind, and the cooling water flows stably over a wide range of the wall surface of the dehumidification duct. A laundry dryer can be provided.

１…筐体、２…外槽、３…洗濯兼脱水槽（回転ドラム）、４…モータ、６…操作パネル、８…乾燥フィルタ、９…ドア、１６…給水電磁弁２１…水冷除湿機構、２１ｂ…冷却水ノズル、２２…冷却水ホース２２ａ〜２２ｄ…流路、２３…ダクトカバー２７…フィルタダクト、２８…送風ユニット、２９…循環ダクト、２９ｆ…除湿リブ、３０…温風ダクト DESCRIPTION OF SYMBOLS 1 ... Housing | casing 2 ... Outer tank 3 ... Washing and dehydration tank (rotary drum), 4 ... Motor, 6 ... Operation panel, 8 ... Drying filter, 9 ... Door, 16 ... Water supply solenoid valve 21 ... Water cooling dehumidification mechanism, 21b ... Cooling water nozzle, 22 ... Cooling water hoses 22a-22d ... Flow path, 23 ... Duct cover 27 ... Filter duct, 28 ... Air blow unit, 29 ... Circulation duct, 29f ... Dehumidification rib, 30 ... Hot air duct

Claims

乾燥時に内部が乾燥室となる外槽と、前記外槽内に回転自在に配置され洗濯物を収容する洗濯兼脱水槽と、前記洗濯兼脱水槽を駆動する電動機を含む駆動手段と、前記外槽を支持し外装を構成する筐体と、前記洗濯兼脱水槽に乾燥用の風を送風するための乾燥機構を備えた洗濯乾燥機において、
前記乾燥機構は、前記洗濯兼脱水槽に向けて開口する出口と前記外槽に向けて開口する入口を有する送風通路と、前記送風通路の途中に設けられたヒータ及び風の流れから見て前記ヒータの上流側に設けられた送風ファンと、前記入口と前記送風ファンとの間に設けた循環ダクトと該循環ダクト内に設けた冷却水供給部とで構成され、
前記循環ダクトは、前記外槽背面を凹ませて略垂直方向に形成し、前記循環ダクトの前面にダクトカバーを設けて風路を形成し、
前記ダクトカバーの下端部の水平方向の形状を上下に傾斜した形状としたことを特徴とする洗濯乾燥機。 An outer tub whose inside becomes a drying chamber when drying, a washing and dehydrating tub that is rotatably arranged in the outer tub to store laundry, a driving means including an electric motor that drives the washing and dehydrating tub, and the outer In a washing and drying machine provided with a casing that supports the tub and constitutes an exterior, and a drying mechanism for blowing air for drying to the washing and dehydrating tub,
The drying mechanism includes a blower passage having an outlet opening toward the washing and dewatering tub and an inlet opening toward the outer tub, a heater provided in the middle of the blower passage, and the flow of the wind as viewed from the air flow. A blower fan provided on the upstream side of the heater, a circulation duct provided between the inlet and the blower fan, and a cooling water supply unit provided in the circulation duct,
The circulation duct is formed in a substantially vertical direction with the back surface of the outer tub recessed, and a duct cover is provided on the front surface of the circulation duct to form an air passage,
The washing / drying machine characterized in that the horizontal shape of the lower end portion of the duct cover is inclined vertically.