JP5600779B2 - Washing and drying machine - Google Patents
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- JP5600779B2 JP5600779B2 JP2013150048A JP2013150048A JP5600779B2 JP 5600779 B2 JP5600779 B2 JP 5600779B2 JP 2013150048 A JP2013150048 A JP 2013150048A JP 2013150048 A JP2013150048 A JP 2013150048A JP 5600779 B2 JP5600779 B2 JP 5600779B2
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Description
本発明は、衣類を乾燥する手段を備えた洗濯乾燥機に関する。 The present invention relates to a washing and drying machine provided with means for drying clothes.
衣類の乾燥は、送風ファンと熱源により高温・低湿度の空気（温風）をドラム内に吹き込み、衣類の温度を高くし、衣類から水分を蒸発させ、蒸発した水分を機外へ排出することにより行う。蒸発した水分の除去方法としては、そのまま洗濯乾燥機外へ排出する排気方式（常に新しい空気を供給）と蒸発した水分を冷やし結露させて水分を除去する除湿方式（同じ空気を循環させる）がある。一般に、排気方式の方が消費電力を低減できるが、湿気を帯びた空気が機外へ排出され部屋の湿度が上がってしまう問題がある。 Drying clothing is to blow high-temperature and low-humidity air (hot air) into the drum using a blower fan and heat source to raise the temperature of the clothing, evaporate the moisture from the clothing, and discharge the evaporated moisture to the outside of the machine. To do. There are two methods for removing the evaporated water: an exhaust system that discharges it directly outside the washing and drying machine (always supplying new air) and a dehumidification system that cools the evaporated water and condenses it to remove the water (circulates the same air). . In general, the exhaust system can reduce power consumption, but there is a problem that humid air is discharged outside the apparatus and the humidity of the room increases.
また、乾燥時間の短縮や消費電力の低減には、温風の風量を増やしたり、温風の温度を高くしたりする方法がある。一般的な衣類用の洗濯乾燥機又は乾燥機では、衣類を収容する回転ドラムの一方向から温風を衣類に吹き付け、反対方向から温風を排出する構成になっている。しかし、衣類の量が多くなると、回転ドラム内で衣類が動きにくくなるため、温風が当たる側の衣類は早く乾くのに対して、反対側の衣類は温風が当たりにくく乾燥速度が遅くなる。このため、衣類の温度を優先し、温度がＴ１程度で運転を終了すると、後側衣類は乾燥不足となり、乾きむらがないように運転すると、前側衣類の温度が上がりすぎてしまうという問題がある。 Further, there are methods for increasing the amount of warm air and increasing the temperature of hot air in order to shorten the drying time and reduce power consumption. A general washing and drying machine for clothes or a dryer has a configuration in which warm air is blown from one direction of a rotating drum for storing clothes and the warm air is discharged from the opposite direction. However, as the amount of clothing increases, the clothing becomes difficult to move in the rotating drum, so the clothing on the side where the hot air hits dries quickly, while the clothing on the other side is difficult to receive the hot air and the drying speed is slow. . For this reason, if priority is given to the temperature of clothing and the operation is terminated at a temperature of about T1, the rear clothing becomes insufficiently dried, and if the operation is performed without uneven drying, there is a problem that the temperature of the front clothing becomes too high. .
そこで、温風を回転ドラムの複数方向から吹き付けることで乾燥効率を高めた洗濯乾燥機（又は乾燥機）として、特開２００６−３５４号公報や特開２００８−２５９５４９号公報がある。前者の洗濯乾燥機は、温風を回転ドラムに供給する複数の循環経路を備え、前記複数の循環経路に設けた温風の吹き出し口の少なくとも１つを回転ドラムの奥側側壁領域に設け、他の少なくとも１つの吹き出し口を回転ドラムの前側側壁領域に設けたものである。送風ファンは、複数の循環経路毎に設けてあり、加熱手段は複数の循環経路の少なくとも１つに設けてある。後者の洗濯乾燥機は、送風ファンは１つで、回転ドラムの前後の温風吹き出し口を切り換え弁で切り換える構成になっている。これらは、温風を万遍なく衣類に吹き付けることができるため、乾きむらの少ない乾燥を実現できる。 In view of this, Japanese Laid-open Patent Publication No. 2006-354 and Japanese Laid-Open Patent Publication No. 2008-259549 have been proposed as washing / drying machines (or dryers) whose drying efficiency is improved by blowing hot air from a plurality of directions of a rotating drum. The former washer / dryer is provided with a plurality of circulation paths for supplying warm air to the rotating drum, and at least one of the hot air outlets provided in the plurality of circulation paths is provided in a rear side wall region of the rotating drum, Another at least one outlet is provided in the front side wall region of the rotating drum. The blower fan is provided for each of the plurality of circulation paths, and the heating unit is provided for at least one of the plurality of circulation paths. The latter washer / dryer has one blower fan and is configured to switch the hot air outlets before and after the rotating drum with a switching valve. Since these can blow warm air uniformly on clothes, it is possible to achieve drying with little unevenness in drying.
上記従来技術は、複数の温風吹き出し口を設けて乾きむらの少ない乾燥を実現できるものであるが、その乾燥方式（排気方式，除湿方式）については考慮されていない。 Although the above-mentioned conventional technology can provide a plurality of hot air outlets to achieve drying with little unevenness in drying, the drying method (exhaust method, dehumidification method) is not considered.
前述したように乾燥方式には、ドラム内の湿った空気をそのまま機外へ排出する排気方式（常に新しい空気を供給）と蒸発した水分を冷やし結露させて水分を除去する除湿方式（同じ空気を循環させる）があるが、上記従来技術には、これら方式の違いを考慮した消費電力の低減については考慮されていない。 As described above, there are two types of drying methods: an exhaust system that discharges the humid air inside the drum directly to the outside of the machine (always supplying fresh air) and a dehumidification system that cools and condenses the evaporated water to remove moisture (the same air is used). However, the above prior art does not consider reduction of power consumption considering the difference between these methods.
本発明の目的は、衣類の乾きむらを防止しつつ、上記乾燥方式の違いを考慮して、湿気を帯びた空気の機外排出を極力抑えながら乾燥の消費電力を低減する洗濯乾燥機を提供することにある。 An object of the present invention is to provide a laundry dryer that reduces the power consumption of drying while preventing the clothes from drying out and taking into account the difference in the drying method and suppressing the exhaust of humid air as much as possible. There is to do.
上記目的を達成するため、本発明は、衣類が収容される回転ドラムと、この回転ドラムを駆動するモータと、前記回転ドラムを収容する外槽と、この外槽を支持する筐体と、前記回転ドラム内に温風を吹き出す乾燥手段とを備え、前記温風の熱源としてヒートポンプを使用し、前記回転ドラムの回転中心軸は開口部側が高くなるように傾斜させた洗濯乾燥機において、前記乾燥手段は、前記回転ドラム内の空気を吸い込み吐き出す単一の送風ユニットと、複数個の吹き出し口を有し、前記複数個の吹き出し口は、前記回転ドラムの前側の上から風を吹き付ける前吹き出し口と、前記回転ドラムの後側の上から風を吹き付ける後吹き出し口を備え、前記前吹き出し口の面積を、前記後吹き出し口の面積より小さくし、乾燥運転中に、前記単一の送風ユニットを運転し、前記前吹き出し口と前記後吹き出し口とから同時に前記温風を吹き出して、前記外槽の底面下部に設けられた吸気口から吸い込まれることを特徴とする。 In order to achieve the above object, the present invention provides a rotating drum in which clothing is accommodated, a motor that drives the rotating drum, an outer tub that accommodates the rotating drum, a housing that supports the outer tub, A drying means that blows out hot air into the rotating drum, and uses a heat pump as a heat source of the hot air, and the center of rotation of the rotating drum is inclined so that the opening side becomes higher The means has a single air blowing unit that sucks and discharges air in the rotating drum and a plurality of outlets, and the plurality of outlets are a front outlet that blows air from above the front side of the rotating drum. If the provided with outlet after blowing air over the rear side of the rotary drum, the area of the front outlet, smaller than the area of the rear outlet, during the drying operation, the single Operating the wind unit, and blown the warm air simultaneously from said front outlet and the rear outlet, characterized in that it is sucked from the intake port provided on a bottom surface lower portion of the outer tub.
本発明によれば、前後同時吹き出しによる、高効率乾燥と高仕上げ乾燥を実現可能である。 According to the present invention, high-efficiency drying and high-finishing drying can be realized by simultaneous front and rear blowing.
以下、本発明の一実施について、図面を用いて説明する。 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
図１は本発明の一実施の形態例に係るドラム式洗濯乾燥機の外観図である。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は内部の構造を示すために筐体の一部を切断し斜め後方から見た斜視図、図４は内部の構造を示すために背面カバーを取り外した背面図、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 washing / drying machine according to an embodiment of the present invention. FIG. 2 is a perspective view of a part of the casing cut to show the internal structure and viewed obliquely from the front, and FIG. 3 is a part of the casing cut to show the internal structure and viewed from the diagonal rear. FIG. 4 is a rear view with the back cover removed to show the internal structure, and FIG. 5 is a side view showing the internal structure.
１は、外郭を構成する筐体である。筐体１は、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。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（図示せず）で結合されており、ベース１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。 Reference numeral 1 denotes a housing constituting the outer shell. The housing 1 is mounted on a base 1h, and includes left and right side plates 1a and 1b, a front cover 1c, a back cover 1d, a top cover 1e, and a lower front cover 1f. The left and right side plates 1a and 1b are connected by a U-shaped upper reinforcing material 1j, a front reinforcing material 1k, and a rear reinforcing material (not shown), and form a box-shaped casing 1 including the base 1. However, it has sufficient strength as a housing.
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。ドア開放ボタン９ｄを押すことでロック機構（図示せず）が外れてドアが開き、ドアを前面カバー１ｃに押し付けることでロックされて閉じる。前補強材は、後述する外槽の開口部と同心に、衣類を出し入れするための円形の開口部を有している。 9 is a door which closes the insertion port for putting in and taking out the clothes provided in the approximate center of the front cover 1c, and is supported by the hinge provided in the front reinforcement material so that opening and closing is possible. When the door opening button 9d is pressed, the lock mechanism (not shown) is released to open the door, and when the door is pressed against the front cover 1c, the door is locked and closed. The front reinforcing member has a circular opening for putting clothes in and out concentrically with an opening of the outer tub described later.
６は、筐体１の上部中央に設けた操作パネルで、電源スイッチ３９，操作スイッチ１２，１３，表示器１４を備える。操作パネル６は、筐体１下部に設けた制御装置３８に電気的に接続している。 Reference numeral 6 denotes an operation panel provided in the upper center of the housing 1 and includes a power switch 39, operation switches 12 and 13, and a display 14. The operation panel 6 is electrically connected to a control device 38 provided at the lower part of the housing 1.
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。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。 3 is a cylindrical washing and dewatering tub (rotary drum) supported rotatably, having 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 An opening 3a for taking in and out is provided. 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.
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と結合している。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３７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。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２ｆで排水弁２５の下流側で排水ホース２６に接続している。 Reference numeral 2 denotes a cylindrical outer tub, which coaxially encloses the washing / dehydrating tub 3, opens on the front surface, and attaches the motor 4 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 washing and dewatering tub 3. 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 37 is connected by a rubber bellows 10, and the outer tub 2 is sealed with water by closing the door 9. A drain port 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 tub 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 by the overflow hose 2f.
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.
１９は、筐体１内の上部左側に設けた洗剤容器で、前部開口から引き出し式の洗剤トレイ７を装着する。洗剤類を入れる場合は、洗剤トレイ７を図１の二点鎖線で示すように引き出す。洗剤容器１９は、筐体１の上補強材１ｊに固定されている。 Reference numeral 19 denotes a detergent container provided on the upper left side in the housing 1, and a drawer-type detergent tray 7 is mounted from the front opening. When putting detergents, the detergent tray 7 is pulled out as shown by a two-dot chain line in FIG. The detergent container 19 is fixed to the upper reinforcement 1j of the housing 1.
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。洗剤容器１９は、外槽２に接続されており、給水電磁弁１６を開く、あるいは風呂水給水ポンプ１７を運転することで、外槽２に洗濯水を供給する。 On the rear 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, 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 detergent container 19 is connected to the outer tub 2 and supplies washing water to the outer tub 2 by opening the water supply electromagnetic valve 16 or operating the bath water supply pump 17.
２９は筐体１の背面内側に縦方向に設置した乾燥ダクトで、ダクト下部は外槽２の背面下方に設けた吸気口２ａにゴム製の蛇腹管Ｂ（２９ａ）で接続される。乾燥ダクト２９内には、水冷除湿機構（図示せず）を内蔵しており、冷却水ホース２４で給水電磁弁１６と水冷除湿機構を接続し、給水電磁弁を開くことで水冷除湿機構へ冷却水を供給する。冷却水は乾燥ダクト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。 Reference numeral 29 denotes a drying duct installed vertically inside the back surface of the housing 1, and a lower portion of the duct is connected to an intake port 2 a provided below the back surface of the outer tub 2 through a rubber bellows tube B (29 a). The drying duct 29 has a built-in water-cooled dehumidifying mechanism (not shown). The cooling water hose 24 connects the water supply electromagnetic valve 16 and the water-cooling dehumidifying mechanism, and opens the water supply electromagnetic valve to cool the water-cooled dehumidifying mechanism. Supply water. The cooling water flows down along the wall surface of the drying duct 29, enters the outer tub 2 through the intake port 2a, and is discharged from the drain port 2b.
乾燥ダクト２９の上部は、筐体１内の上部右側に前後方向に設置したフィルタダクト２７に接続している。乾燥ダクト２９上部のフィルタダクト２７との接続部に、吸排気弁５５を有する。フィルタダクト２７の前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。乾燥ダクト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を引き出してメッシュ式のフィルタ８ａを取り出して行う。また、フィルタダクト２７の乾燥フィルタ８挿入部の下面には開口部が設けてあり、この開口部は吸気ダクト３３が接続しており、吸気ダクト３３の他端は送風ユニット２８の吸気口と接続している。 The upper part of the drying duct 29 is connected to a filter duct 27 installed in the front-rear direction on the upper right side in the housing 1. An intake / exhaust valve 55 is provided at the connection with the filter duct 27 at the top of the drying duct 29. The filter duct 27 has an opening on the front surface, and a drawer-type drying filter 8 is inserted into the opening. The air that has entered the filter duct 27 from the drying duct 29 flows into the mesh filter 8a of the drying filter 8, and lint is removed. Cleaning of the dry filter 8 is performed by pulling out the dry filter 8 and taking out the mesh filter 8a. Further, an opening is provided in the lower surface of the insertion portion of the dry filter 8 of the filter duct 27, the opening is connected to the intake duct 33, and the other end of the intake duct 33 is connected to the intake port of the blower unit 28. doing.
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。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Ａ（３０ａ），蛇腹管継ぎ手３０ｂを介して外槽カバー２ｄに設けた前部吹き出し口３２に接続している。 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. 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 A (30a) and a bellows tube joint 30b.
５１は後部ダクトで、図６の外槽斜視図に示すように、外槽２の外周面上部から外槽２の背面に沿って配置してある。後部ダクト前部は蛇腹管継ぎ手３０ｂの背面開口３０ｃに接続され、後部は外槽２の背面に設けた後部吹き出し口５２に接続される。蛇腹管継ぎ手３０ｂ内には切り換え弁５４を設けてあり、前部吹き出し口３２と後部吹き出し口５２とを切り換える。 Reference numeral 51 denotes a rear duct, which is arranged from the upper part of the outer peripheral surface of the outer tub 2 along the back surface of the outer tub 2 as shown in the perspective view of the outer tub in FIG. The front part of the rear duct is connected to the rear opening 30c of the bellows pipe joint 30b, and the rear part is connected to a rear outlet 52 provided on the rear face of the outer tub 2. A switching valve 54 is provided in the bellows tube joint 30b to switch between the front outlet 32 and the rear outlet 52.
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、前部吹き出し口３２は外槽カバー２ｄの右斜め上の位置に設け、前部吹き出し口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。しかし、後部吹き出し口５２は外槽２背面上部の乾燥ダクト２９の吸気口２ａとほぼ点対称の位置に設けてあるため、後部ダクト５１の長さが長く、後部ダクト５１から熱が逃げやすい。そこで、後部ダクト５１と外槽２とは密着して設けてある。こうすることで、ヒータ３１で暖められた温風の熱が後部ダクト５１通過中に筐体内へ放散することを低減できる。さらに、後部ダクト５１の断面形状をコの字形として、開口側を外槽２の外周面に密着させるようにして、外槽２の外周面を使用し後部ダクト５１を構成した方が、ダクト放熱面積が少なくなるため、より放熱防止効果を大きくできる。 In the present 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 diagonally right above 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. However, since the rear outlet 52 is provided at a position that is substantially point-symmetric with the inlet 2 a of the drying duct 29 on the upper back of the outer tub 2, the length of the rear duct 51 is long, and heat easily escapes from the rear duct 51. Therefore, the rear duct 51 and the outer tub 2 are provided in close contact with each other. By doing so, it is possible to reduce the heat of the warm air heated by the heater 31 from being diffused into the housing while passing through the rear duct 51. Further, the rear duct 51 is configured to have a U-shaped cross-section, the opening side is brought into close contact with the outer peripheral surface of the outer tub 2, and the rear duct 51 is configured using the outer peripheral surface of the outer tub 2. Since the area is reduced, the effect of preventing heat dissipation can be increased.
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.
本発明の特徴は、高速の風を衣類に直接当て、衣類のしわを伸ばしながら衣類からの水分の蒸発を促進するとともに、乾燥の進行度合いに応じて温風の吹き出し口を切り換え、乾きむらを低減し、消費電力を低減することにある。このためには、高速の風を発生する送風ユニット２８とこの風を直接衣類に当てる前部吹き出し口３２，後部吹き出し口５２が必要となる。送風ユニットに必要な性能に関しては、後述する。 A feature of the present invention is that high-speed wind is directly applied to the clothing to promote the evaporation of moisture from the clothing while stretching the wrinkles of the clothing, and the hot air outlet is switched according to the degree of drying to prevent uneven drying. It is to reduce power consumption. For this purpose, a blower unit 28 that generates high-speed wind and a front blowout port 32 and a rear blowout port 52 that directly apply the wind to clothing are required. The performance required for the blower unit will be described later.
前部吹き出し口３２の詳細を図７，図８を用いて説明する。図７は前部吹き出し口３２設置部の外槽カバー２ｄの正面図、図８は図７の二点鎖線Ａ−Ａで切断して示した前部吹き出し口３２の断面図である。 Details of the front outlet 32 will be described with reference to FIGS. 7 is a front view of the outer tub cover 2d of the front outlet 32 installation portion, and FIG. 8 is a cross-sectional view of the front outlet 32 cut along a two-dot chain line AA in FIG.
前部吹き出し口３２は、外槽カバー２ｄの前側から開口部２ｃに沿って設けてあり、内部に流路３２ｂ，３２ｃが形成されている。前部吹き出し口３２の入口には蛇腹管継ぎ手３０ｂが取り付けてあり、流路３２ｃの出口にはノズル３２ｄが形成されている。洗濯兼脱水槽３と外槽カバー２ｄとのすき間に衣類が入り込まないよう、外槽カバー２ｄの開口部２ｃの内径と洗濯兼脱水槽３の開口部３ａの内径は、ほぼ同一に設定されている。このため、前部吹き出し口３２の出口部３２ａを開口部２ｃの内周面より内側に飛び出すように形成し、ノズル３２ｄが洗濯兼脱水槽３内に向かって開口するようにしてある。このようにすることでノズル３２ｄから出た温風は直接洗濯兼脱水槽３内の衣類に当たる。 The front outlet 32 is provided along the opening 2c from the front side of the outer tank cover 2d, and the flow paths 32b and 32c are formed therein. A bellows pipe joint 30b is attached to the inlet of the front outlet 32, and a nozzle 32d is formed at the outlet of the flow path 32c. The inner diameter of the opening 2c of the outer tub cover 2d and the inner diameter of the opening 3a of the washing / dehydration tub 3 are set to be substantially the same so that clothing does not enter between the gap between the washing / dehydration tub 3 and the outer tub cover 2d. Yes. For this reason, the outlet portion 32a of the front outlet 32 is formed so as to protrude inward from the inner peripheral surface of the opening 2c, and the nozzle 32d is opened toward the washing and dewatering tub 3. By doing in this way, the warm air coming out of the nozzle 32d directly hits the clothes in the washing and dewatering tank 3.
なお、出口部３２ａの飛び出し量が多すぎると、洗濯や乾燥時に衣類の動きを阻害するため、図７に示すようにノズルを扁平のスリット形状として飛び出し量を小さくし、かつ開口部２ｃと出口部３２ａの表面形状がスムーズに変化するようにしてある。また、流路３２ｂと流路３２ｃは無駄な突起や、急激な流れ方向の変化が無いようにし、かつノズル３２ｄに向かい流路面積が徐々に小さくなるようにしてある。こうすることで、高速の風が流路３２ｂ，３２ｃを流れるときに発生する圧力損失や流体音を小さくすることが出来る。 If the amount of protrusion of the outlet portion 32a is too large, the movement of clothing is hindered during washing or drying. Therefore, as shown in FIG. 7, the amount of protrusion is reduced by using a flat slit shape, and the opening 2c and the outlet The surface shape of the portion 32a is changed smoothly. Further, the flow path 32b and the flow path 32c are configured so that there is no useless protrusion or a sudden change in the flow direction, and the flow path area gradually decreases toward the nozzle 32d. By doing so, it is possible to reduce the pressure loss and fluid sound that occur when high-speed wind flows through the flow paths 32b and 32c.
蛇腹管継ぎ手３０ｂ内に設けた切り換え弁５４は、駆動モータ５４ａと弁体５４ｂとで構成される。駆動モータ５４ａは固定金具５４ｃで蛇腹管継ぎ手３０ｂに取り付けてある。弁体５４ｂの端部に設けた回転軸５４ｄを駆動モータ５４ａで回転させることで、弁体５４ｂが回転するようになっている。弁体５４ｂが図８に示す位置にあるときを切り換え弁閉、二点鎖線の位置にあるときを切り換え弁開と定義する。切り換え弁５４が閉の場合、背面開口３０ｃが閉じるため、温風は前部吹き出し口３２から吹き出し、切り換え弁５４を開くと、前部吹き出し口３２への風路が閉じるため、温風は背面開口３０ｃから後部ダクト５１を通り後部吹き出し口５２から吹き出す。 The switching valve 54 provided in the bellows pipe joint 30b includes a drive motor 54a and a valve body 54b. The drive motor 54a is attached to the bellows tube joint 30b by a fixing metal 54c. The valve body 54b is rotated by rotating the rotating shaft 54d provided at the end of the valve body 54b by the drive motor 54a. When the valve body 54b is at the position shown in FIG. 8, the switching valve is closed, and when the valve body 54b is at the position of the two-dot chain line, the switching valve is defined as open. When the switching valve 54 is closed, the back opening 30c is closed, so that warm air is blown out from the front outlet 32, and when the switching valve 54 is opened, the air path to the front outlet 32 is closed, so It blows out from the rear outlet 51 through the rear duct 51 from the opening 30c.
後部吹き出し口５２部の詳細を図９，図１０を用いて説明する。図９は図４の二点鎖線Ｂ−Ｂで切断した外槽及び洗濯兼脱水槽３後部の断面図である。図１０は図９の二点鎖線Ｃ−Ｃで外槽２及び洗濯兼脱水槽３を切断し、洗濯兼脱水槽３底面を示した断面図である。 Details of the rear outlet 52 will be described with reference to FIGS. 9 is a cross-sectional view of the outer tub and the rear portion of the washing and dewatering tub 3 cut along the two-dot chain line BB in FIG. 10 is a cross-sectional view showing the bottom surface of the washing / dehydrating tub 3 by cutting the outer tub 2 and the washing / dehydrating tub 3 along the two-dot chain line CC of FIG.
外槽２の底面には後部吹き出し口５２と吸気口２ａが設けてある。吸気口２ａは外槽下部にあり、後部吹き出し口５２は外槽上部に設けてあり、両者はモータ４の回転軸４ａに対して略点対称の位置にある。また、吸気口２ａの径方向位置は最外周部に近い位置で、後部吹き出し口５２はそれより内側に位置している。吸気口２ａの位置より内周側で後部吹き出し口５２より外周側の外槽底面には複数の環状の凸部Ｂ５３ｂが形成されている。また、洗濯兼脱水槽３の底面外槽側には、凸部Ｂ５３ｂと同芯に複数の環状の凸部Ａ５３ａが形成されている。凸部Ｂ５３ｂと凸部Ａ５３ａは互い違いに配置してあり、ラビリンスシール５３を構成している。後部吹き出し口５２と対向した洗濯兼脱水槽３の底面には、複数個の通気口３ｄが設けてあり、通気口３ｄは衣類が飛び出さないよう、また通気抵抗が少なくなるようメッシュ状にもしくは多数の小孔で構成してある。また、洗濯兼脱水槽３底面のラビリンスシール５３より外側には、多数の小孔３ｅを設けてある。 A rear outlet 52 and an intake port 2a are provided on the bottom surface of the outer tub 2. The air inlet 2 a is provided at the lower part of the outer tub, and the rear outlet 52 is provided at the upper part of the outer tub, and both are located substantially symmetrical with respect to the rotating shaft 4 a of the motor 4. The radial position of the air inlet 2a is close to the outermost peripheral portion, and the rear outlet 52 is located inside thereof. A plurality of annular convex portions B53b are formed on the bottom surface of the outer tank on the inner peripheral side from the position of the intake port 2a and on the outer peripheral side of the rear outlet 52. In addition, a plurality of annular protrusions A53a are formed on the outer bottom tank side of the washing and dewatering tank 3 so as to be concentric with the protrusions B53b. Convex part B53b and convex part A53a are alternately arranged, and constitute labyrinth seal 53. A plurality of ventilation holes 3d are provided on the bottom surface of the washing and dewatering tub 3 facing the rear outlet 52, and the ventilation holes 3d are mesh-shaped to prevent clothes from jumping out or to reduce ventilation resistance. It consists of many small holes. A large number of small holes 3 e are provided outside the labyrinth seal 53 on the bottom surface of the washing and dewatering tub 3.
このように、後部吹き出し口５２と吸気口３２の位置を離して配置し、かつ両者の間にラビリンスシールを設けることで、後部吹き出し口５２から吹き出した温風が、直接吸気口２ａに入ってしまうことを防止でき、効率よく洗濯兼脱水槽３内の衣類へ風を当てることができる。また、後部吹き出し口から吹き出す温風の風速は衣類のしわを伸ばすことができる程度に高速なので、洗濯兼脱水槽３内に衣類が多く入っていて通気口３ｄを衣類が塞いだようになっている場合でも、風の力で衣類が押され、衣類間にすき間が形成されるため、温風が洗濯兼脱水槽３内に入りやすいため、効率よく衣類に風を当てることができる。 Thus, by arranging the rear outlet 52 and the inlet 32 apart from each other and providing a labyrinth seal between them, the warm air blown from the rear outlet 52 directly enters the inlet 2a. Can be prevented, and air can be efficiently applied to the clothes in the washing and dewatering tub 3. Moreover, since the speed of the warm air blown out from the rear outlet is high enough to stretch the wrinkles of the clothes, there is a lot of clothes in the washing and dehydrating tank 3 and the clothes are blocking the vent 3d. Even when the clothes are pressed, the clothes are pushed by the force of the wind, and a gap is formed between the clothes, so that the warm air can easily enter the washing and dewatering tank 3, so that the clothes can be efficiently blown.
本実施の形態例では、後部吹き出し口５２から吹き出す風の風速を衣類のしわを伸ばす効果（衣類を押し広げる効果）を阻害しない程度に、前部吹き出し口３２より遅くしている。一般に、洗濯兼脱水槽３に複数本の放射状のリブを有するフランジ２３を取り付け、このフランジ２３の中心部にモータ４の回転軸４ａを接続する構造となっている。洗濯兼脱水槽３が回転すると放射状のリブが後部吹き出し口５２を周期的に横切る。このため、後部吹き出し口５２での風速が速すぎると、風きり音が発生し、騒音が増大してしまうため、風速を遅くし、風きり音の増大を抑えている。 In the present embodiment, the speed of the wind blown from the rear outlet 52 is made slower than the front outlet 32 to the extent that it does not hinder the effect of stretching the wrinkles of the clothes (the effect of spreading the clothes). In general, a flange 23 having a plurality of radial ribs is attached to the washing and dewatering tub 3, and the rotating shaft 4 a of the motor 4 is connected to the center of the flange 23. When the washing and dewatering tub 3 rotates, radial ribs periodically cross the rear outlet 52. For this reason, if the wind speed at the rear outlet 52 is too high, wind noise is generated and noise increases, so the wind speed is slowed down and the increase in wind noise is suppressed.
実際には、後部吹き出し口５２のノズル面積を前部吹き出し口３２のノズル３２ｄよりも大きくしてある。送風ユニット２８の回転数を一定にした場合、後部吹き出し口５２から吹き出す風は、前部吹き出し口３２よりも風速が遅くなるが風量は多くなる。風速による衣類からの水分蒸発効果は低減するが風量が多くなることによる水分蒸発効果の向上と相殺するため、乾燥効率が低減することはない。 Actually, the nozzle area of the rear outlet 52 is larger than the nozzle 32 d of the front outlet 32. When the rotation speed of the blower unit 28 is constant, the wind blown out from the rear outlet 52 is slower than the front outlet 32 but the air volume is increased. Although the effect of evaporating the moisture from the clothes due to the wind speed is reduced, it is offset by the improvement of the effect of evaporating the moisture due to the increased air volume, so that the drying efficiency is not reduced.
フランジ２３の後部吹き出し口５２と対面する位置には、通気口２３ａを設け、更にフランジを覆う外槽底面にも複数個の小孔３ｆを設け、後部吹き出し口５２の位置にフランジ２３が来た場合でも、温風が洗濯兼脱水槽３内に入るようになっている。また、後部吹き出し口５２の形状はフランジ２３の放射状リブの幅よりも円周方向に長いスリット状にしたほうが良い。こうすることで、後部吹き出し口５２がフランジ２３のリブで完全に塞がれることがないため、温風を効率よく洗濯兼脱水槽３内に導入できる。 A vent 23 a is provided at a position facing the rear outlet 52 of the flange 23, and a plurality of small holes 3 f are also provided on the bottom surface of the outer tub covering the flange, and the flange 23 comes to the position of the rear outlet 52. Even in this case, the warm air enters the washing / dehydrating tub 3. Further, the shape of the rear outlet 52 should be a slit longer in the circumferential direction than the width of the radial rib of the flange 23. By doing so, the rear outlet 52 is not completely blocked by the ribs of the flange 23, so that warm air can be efficiently introduced into the washing and dewatering tub 3.
吸排気弁５５の詳細を図１１に示す。図１１は図４の二点鎖線Ｄ−Ｄで切断した断面図である。吸排気弁５５は駆動用モータ５５ａと弁体５５ｂと弁座５５ｃとで構成される。弁体５５ｂの中心部に設けた回転軸５５ｄを駆動モータ５５ａで回転することにより弁体５５ｂが回転するようになっている。図１１に示すように弁体５５ｂで弁座５５ｃを塞いだ状態を吸排気弁閉、二点鎖線で示したように乾燥ダクト２９とフィルタダクト２７を遮断した状態を吸排気弁開と呼ぶ。吸排気弁５５を開にすると、吸気口５６と排気口５７が形成される。吸気口５６は筐体１上部の上面カバー１ｅの内側空間に開口している。排気口５７には排気ダクト５８が接続しており、室内に通じている。排気ダクト５８の出口にはフィルタ５９を設けてあり、排気に含まれる糸くずを除去する。 Details of the intake / exhaust valve 55 are shown in FIG. 11 is a cross-sectional view taken along the two-dot chain line DD in FIG. The intake / exhaust valve 55 includes a drive motor 55a, a valve body 55b, and a valve seat 55c. The valve body 55b is rotated by rotating a rotating shaft 55d provided at the center of the valve body 55b by a drive motor 55a. The state in which the valve seat 55c is closed by the valve body 55b as shown in FIG. 11 is called the intake / exhaust valve closed, and the state in which the drying duct 29 and the filter duct 27 are shut off as shown by the two-dot chain line is called the intake / exhaust valve open. When the intake / exhaust valve 55 is opened, an intake port 56 and an exhaust port 57 are formed. The air inlet 56 is open to the inner space of the upper surface cover 1 e above the housing 1. An exhaust duct 58 is connected to the exhaust port 57 and communicates with the room. A filter 59 is provided at the outlet of the exhaust duct 58 to remove lint contained in the exhaust.
乾燥運転時の風の流れは、切り換え弁５４の開閉状態及び吸排気弁５５の開閉状態により４種類の流れ方を実現できるが、本発明では、切り換え弁５４と吸排気弁５５が両方閉もしくは、両方開の二通りの運転を行う。なお、風の流れは、図１乃至図５及び図８乃至図１１に実線矢印及び破線矢印で示してあるが、分かりやすくするために図１２の構造模式図に示してある。まず、両方が閉の場合について述べる（図１２実線矢印）。送風ユニット２８を運転し、ヒータ３１に通電すると、ノズル３２ｄから洗濯兼脱水槽３内に高速の温風が吹き込み（矢印４１）、湿った衣類に当たり、衣類を温め衣類から水分を蒸発させる。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から乾燥ダクト２９に吸い込まれ、乾燥ダクト２９を下から上へ流れる（矢印４２）。乾燥ダクト２９の壁面には、水冷除湿機構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に設けたメッシュフィルタ８ａを通り糸屑が取り除かれ、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。この循環により除湿方式となる第１の循環経路が形成される。この間、洗濯兼脱水槽３を低速で正逆回転させ、衣類をノズル３２ｄの近くまで持ち上げ、高速の温風が衣類に直接当たるようにする。 The flow of wind during the drying operation can be realized in four ways depending on whether the switching valve 54 is open or closed and the intake / exhaust valve 55 is open or closed. In the present invention, both the switching valve 54 and the intake / exhaust valve 55 are closed or , Do both ways open. The flow of wind is indicated by solid line arrows and broken line arrows in FIGS. 1 to 5 and FIGS. 8 to 11, but is shown in the structural schematic diagram of FIG. 12 for easy understanding. First, the case where both are closed will be described (solid arrow in FIG. 12). When the blower unit 28 is operated and the heater 31 is energized, high-speed warm air blows into the washing and dewatering tub 3 from the nozzle 32d (arrow 41), hits the wet clothing, warms the clothing, and evaporates moisture from the clothing. The air that has become hot and humid flows from the through hole provided in the washing and dewatering tub 3 to the outer tub 2 and is sucked into the drying duct 29 from the air inlet 2a and flows from the bottom to the top in the drying duct 29 (arrow 42). Cooling water from the water cooling and dehumidifying mechanism flows down on the wall surface of the drying duct 29, and the hot and humid air is cooled and dehumidified by contacting 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 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. This circulation forms a first circulation path that is a dehumidifying system. During this time, the washing and dewatering tub 3 is rotated forward and backward at a low speed to lift the garment to the vicinity of the nozzle 32d so that high-speed warm air directly hits the garment.
次に、両方が開の場合（図１２破線矢印）は、送風ユニット２８を運転すると、筐体１内の空気は吸気口５６からフィルタダクト２７に吸込まれる（破線矢印４６）。そして、吸気ダクト３３に入り送風ユニットに吸込まれ（破線矢印６３）、蛇腹管継ぎ手３０ｂから後部ダクト５１に入り（破線矢印４７）、後部ダクトで外槽２の背面に導かれ、後部吹き出し口５２から洗濯兼脱水槽３の後側から洗濯兼脱水槽３内に吹き込み（破線矢印４８）、洗濯兼脱水槽３内の奥側の衣類に当たり、衣類から水分を蒸発させる。そして、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から乾燥ダクト２９に押し込まれる（破線矢印６２）。乾燥ダクト２９を下から上へ流れ排気口５７から排気ダクト５８に入りフィルタ５９で糸屑を取り除かれ、機外へ排気される（破線矢印４５）。これにより、排気方式となる第２の循環経路が形成される。この間、洗濯兼脱水槽３を低速で正逆回転させ、衣類を後部吹き出し口５２の近くまで持ち上げ、風が衣類に直接当たるようにする。 Next, when both are open (broken line arrow in FIG. 12), when the blower unit 28 is operated, the air in the housing 1 is sucked into the filter duct 27 from the intake port 56 (broken line arrow 46). Then, the air enters the intake duct 33 and is sucked into the blower unit (broken line arrow 63), enters the rear duct 51 from the bellows pipe joint 30b (broken line arrow 47), and is led to the back surface of the outer tub 2 by the rear duct, and the rear outlet 52 From the rear side of the washing and dewatering tub 3, the air is blown into the washing and dewatering tub 3 (broken line arrow 48), hits the clothes on the back side in the washing and dewatering tub 3, and moisture is evaporated from the clothes. And it flows into the outer tub 2 from the through-hole provided in the washing and dewatering tub 3, and is pushed into the drying duct 29 from the air inlet 2a (dashed arrow 62). After flowing from the bottom to the top of the drying duct 29, the waste enters the exhaust duct 58 through the exhaust port 57, the yarn waste is removed by the filter 59, and the exhaust is exhausted outside the machine (dashed arrow 45). Thereby, the 2nd circulation path used as an exhaust system is formed. During this time, the washing and dewatering tub 3 is rotated forward and backward at a low speed to lift the garment to the vicinity of the rear outlet 52 so that the wind directly hits the garment.
乾燥は、次のように進行する。乾燥の初期は、衣類の温度を上昇させる予熱期間で、衣類の温度を速く上昇させるために、極力多くの熱量を衣類に与えることが重要である。予熱期間中は、衣類からの水分の蒸発は少ない。 Drying proceeds as follows. It is important to give the garment as much heat as possible in order to raise the garment temperature quickly in the early stage of drying. During the preheating period, there is little evaporation of moisture from the clothing.
衣類の温度が上昇するに従い、衣類からの水分の蒸発が多くなるため、気化熱により衣類の温度上昇は鈍くなり、やがて加熱と気化熱がバランスし、衣類の温度はほとんど一定となる（恒率乾燥）。衣類からの水分の蒸発量が増加し始めたら、給水電磁弁１６を開き、乾燥ダクト２９内の水冷除湿機構へ冷却水を供給し、蒸発した水分を含む多湿な空気を冷却し結露させて、空気中の水分を除去する。 As the temperature of the clothing rises, the evaporation of moisture from the clothing increases, so the temperature rise of the clothing becomes dull due to the heat of vaporization, and eventually the heat and the heat of vaporization balance, and the temperature of the clothing becomes almost constant (constant rate) Dry). When the evaporation amount of moisture from the clothing starts to increase, the water supply electromagnetic valve 16 is opened, cooling water is supplied to the water cooling / dehumidifying mechanism in the drying duct 29, and the humid air containing the evaporated moisture is cooled and condensed. Remove moisture from the air.
衣類の水分量が少なくなると気化熱が減少し、衣類の温度が再び上昇を始め、衣類の水分がなくなると温風とほぼ同一の温度となり乾燥が終了する（減率乾燥）。減率乾燥に入り衣類の温度が上昇し始めるのは乾燥度が０.９付近になった時である。なお、乾燥度は乾燥衣類の重量／乾燥後の衣類の重量で定義される。乾燥衣類の重量は、温度２０℃，相対湿度６５％の環境に衣類を一昼夜放置した時の重量である。 When the moisture content of the garment decreases, the heat of vaporization decreases, and the temperature of the garment begins to rise again. When the moisture of the garment runs out, the temperature becomes almost the same as that of the warm air, and drying ends (decreasing drying). The garment temperature starts to increase when the drying rate reaches around 0.9. The dryness is defined as the weight of dry clothing / the weight of clothing after drying. The weight of the dry clothes is the weight when the clothes are left overnight in an environment of a temperature of 20 ° C. and a relative humidity of 65%.
材料（衣類）表面から水分が蒸発する場合の乾燥速度の基本式は数１で表される。 The basic formula of the drying rate when moisture evaporates from the surface of the material (clothing) is expressed by the following equation (1).
（数１）
Ｑｓ＝α（Ｔａ−Ｔｓ）／γ
ここで、Ｑｓ：乾燥速度（kg／ｍ2ｈ）
α：熱伝達率（ｋＪ／ｍ2ｈ℃）
γ：蒸発潜熱（ｋＪ／kg）
Ｔａ：温風温度（℃）
Ｔｓ：蒸発面温度（℃）
なお、衣類表面の表面積をＡ（ｍ2）とすると、乾燥速度ＱA（kg／ｈ）は数２となる。
(Equation 1)
Qs = α (Ta−Ts) / γ
Where Qs: drying rate (kg / m 2 h)
α: Heat transfer coefficient (kJ / m 2 h ° C)
γ: latent heat of vaporization (kJ / kg)
Ta: Hot air temperature (° C)
Ts: evaporation surface temperature (° C)
In addition, when the surface area of the garment surface is A (m 2 ), the drying rate Q A (kg / h) is expressed by Formula 2.
（数２）
ＱA＝Ｑｓ・Ａ＝α・Ａ（Ｔａ−Ｔｓ）／γ
また、衣類内部から水分が蒸発する場合の乾燥速度は数３となる。
(Equation 2)
Q A = Qs · A = α · A (Ta−Ts) / γ
Further, the drying rate when the moisture evaporates from the inside of the clothes is expressed by Equation 3.
（数３）
Ｑｉ＝Ｋ（Ｔａ−Ｔｓ）／γ
ここで、Ｑｉ：乾燥速度（kg／ｍ2ｈ）
Ｋ：熱通過率（ｋＪ／ｍ2ｈ℃）
なお、熱通過率Ｋは数４で表される。
(Equation 3)
Qi = K (Ta−Ts) / γ
Where Qi: drying rate (kg / m 2 h)
K: Heat passage rate (kJ / m 2 h ° C)
The heat transfer rate K is expressed by the following equation (4).
（数４）
Ｋ＝１／（１／α＋Ｌ／λ）
Ｌ：布の厚み（ｍ）
λ：熱伝導率（ｋＪ／ｍ・ｈ・Ｋ）
数１，数２，数３，数４から、乾燥（蒸発）速度を早くするためには、
（１）温風温度Ｔａを上げる。
（２）熱伝達率αを上げる。
（３）表面積Ａを多くする。
（４）熱伝導率λを上げる。
（５）布の厚みを薄くする。
(Equation 4)
K = 1 / (1 / α + L / λ)
L: cloth thickness (m)
λ: Thermal conductivity (kJ / m · h · K)
From Equation 1, Equation 2, Equation 3, and Equation 4, in order to increase the drying (evaporation) speed,
(1) Raise the warm air temperature Ta.
(2) Increase the heat transfer coefficient α.
(3) Increase the surface area A.
(4) Increase the thermal conductivity λ.
(5) Reduce the thickness of the cloth.
温風温度が高すぎると衣類へのダメージにつながるため、最大でも９０℃程度に抑えた方がよい。このため、温度を上げることで乾燥速度を速くするのは困難である。また、布の熱伝導率や布の厚みは衣類で決まるため、制御することはできない。熱伝達率は通常風速の０.８乗に比例するので、風速を速くすることにより熱伝達率を上げることができる。衣類の表面積は衣類が団子状になってしまうと、見かけの表面積が減少する。また、団子状になると見かけの布の厚みが厚くなり、乾燥速度が低下してしまう。このため、衣類を極力広げるようにした方がよい。 If the hot air temperature is too high, it will cause damage to clothing, so it is better to keep it at about 90 ° C at the maximum. For this reason, it is difficult to increase the drying rate by raising the temperature. In addition, since the thermal conductivity of the cloth and the thickness of the cloth are determined by the clothing, they cannot be controlled. Since the heat transfer rate is normally proportional to the 0.8th power of the wind speed, the heat transfer rate can be increased by increasing the wind speed. As for the surface area of clothing, the apparent surface area decreases when the clothing becomes dumped. Moreover, when it becomes dumpling shape, the thickness of an apparent cloth will become thick and a drying rate will fall. For this reason, it is better to spread clothing as much as possible.
これらのことは、風速を１００ｍ／ｓ程度まで高速化することで実現できる。図１３は、乾燥後の衣類の状態を、従来の洗濯乾燥機と本実施例の洗濯乾燥機とを比較したものである。比較した洗濯乾燥機の乾燥定格容量は７kgである。従来洗濯乾燥機は、風量１.４ｍ3／min，風速２０ｍ／ｓ、本実施例の洗濯乾燥機は切り換え弁５４及び吸排気弁５５を閉じた状態で、風量１.６５ｍ3／min，風速１００ｍ／ｓで運転した。布量は３kgで、比較した衣類は非常にしわになりやすい綿パジャマのズボンである。従来品は捩れて紐のようになっていて、表面積が減少し、かつ布の見掛け上の厚さが増加したようになり、水分の蒸発が阻害され乾燥速度が低下してしまう。これに対して、本実施例は衣類が広がっており、しわが少ない仕上がりである。しわが少ないのは、風速が速い風を衣類に吹き付けると、衣類が風圧で押し広げられるからである。このように衣類が広がっていると、表面積が大きくなるとともに、衣の重なりによる見掛けの厚さの増加がなく、熱伝達率も高くできるため、水分が蒸発しやすく乾燥速度が上昇し、乾燥消費電力量を低減できる。 These can be realized by increasing the wind speed to about 100 m / s. FIG. 13 shows a comparison of the state of the clothes after drying between a conventional washer / dryer and the washer / dryer of this example. The compared drying capacity of the washing and drying machine is 7 kg. The conventional washing and drying machine has an air volume of 1.4 m 3 / min and an air speed of 20 m / s, and the washing and drying machine of this embodiment has an air volume of 1.65 m 3 / min and an air speed with the switching valve 54 and the intake / exhaust valve 55 closed. It was operated at 100 m / s. The weight of the cloth is 3kg, and the compared clothes are cotton pajamas trousers that are very wrinkled. The conventional product is twisted like a string, the surface area is reduced, and the apparent thickness of the cloth is increased, the evaporation of moisture is hindered and the drying speed is lowered. On the other hand, in this embodiment, the clothing is widened and the finish is small. The reason for the small wrinkles is that when the wind with a high wind speed is blown on the clothing, the clothing is pushed out by the wind pressure. When clothing is spread in this way, the surface area increases, the apparent thickness does not increase due to the overlap of clothing, and the heat transfer rate can be increased, so that moisture easily evaporates and the drying speed increases, drying consumption Electric power can be reduced.
しかし、布量が多くなると、洗濯兼脱水槽３内で衣類が動きにくくなるため、風が衣類に満遍なく当たらなくなるため、衣類の位置により乾き具合に差が生じる。図１４は、ヒータを強モードで乾燥したときの衣類含水量と衣類温度変化を示したものである。乾燥前半は衣類が水分を多く含んでおり、衣類の嵩が小さく、洗濯兼脱水槽３内で衣類が動きやすいため、衣類に満遍なく温風が当たり、衣類の温度はほぼ一緒である。乾燥が進行していくと含水量が減少し衣類が膨らみ出す。そうすると、洗濯兼脱水槽３内での衣類の前後方向の動きが少なくなり、洗濯兼脱水槽３内で前側に位置する衣類と奥側に位置する衣類との乾燥速度に差が生じだす。前側の衣類は温風が良く当たるため速く乾き早い時間から減率乾燥期間に入り、衣類の温度上昇が始まる。これに対して、奥側の衣類は温風が当たりにくくなるため、乾きが遅く減率乾燥期間に入る時間が遅れ、衣類が温度上昇を始める時間も遅くなる。このように、乾きむらが生じ、奥側にある衣類を適正な乾燥度（乾燥度１.０２から１.０４程度）まで乾燥させ運転を終了したとき、奥側の衣類温度はＴ２（８０〜９０℃程度）であるが、前側の衣類は過乾燥状態になり温度がＴ１（１００℃程度）と温風とほぼ同程度まで上昇してしまう。 However, if the amount of cloth increases, the clothes become difficult to move in the washing and dewatering tub 3, so that the wind does not hit the clothes uniformly, so that the dryness varies depending on the position of the clothes. FIG. 14 shows the moisture content of clothing and the change in clothing temperature when the heater is dried in the strong mode. In the first half of drying, the clothes contain a lot of moisture, the clothes are small in volume, and the clothes are easy to move in the washing and dewatering tank 3, so that the clothes are evenly heated and the temperature of the clothes is almost the same. As drying progresses, the moisture content decreases and the clothing swells. Then, the movement of the clothes in the washing / dehydrating tub 3 in the front-rear direction is reduced, and a difference occurs in the drying speed between the clothes positioned on the front side and the clothes positioned on the back side in the washing / dehydrating tub 3. The clothing on the front side is exposed to warm air, so it quickly dries quickly and begins a reduced rate drying period, and the clothing temperature starts to rise. On the other hand, since the clothes on the back side are hard to be hit by hot air, the drying time is slow and the time for entering the decreasing rate drying period is delayed, and the time for the clothes to start increasing in temperature is also delayed. Thus, when uneven drying occurs and the clothes on the back side are dried to an appropriate dryness (dryness of about 1.02 to 1.04) and the operation is terminated, the temperature of the clothes on the back side is T2 (80- However, the clothing on the front side becomes overdried and the temperature rises to about the same level as T1 (about 100 ° C.) and warm air.
そこで、乾燥前半はヒータ３１を強モードとし、切り換え弁５４と吸排気弁５５を閉とし、前部吹き出し口３２から高速の風を吹き出す。そして、乾燥後半は切り換え弁５４と吸排気弁５５を開とし、ヒータ３１を弱モードとし、後部吹き出し口５２から温風を吹き出すようにする。乾燥前半は、上述した高速風の効果により高い乾燥速度で乾燥が進行する。乾燥が進行し減率乾燥期間に入り前側の衣類がほぼ乾燥したら、後部吹き出し口５２から温風を吹き出す。前部吹き出し口３２からの温風だけでは乾き難かった奥側の衣類に温風が当たるため、奥側衣類の乾燥が急激に進む。乾燥後半でヒータ３１を弱としたのは、この時点で奥側の衣類の乾燥が減率乾燥期間に入る程度までは進んでおり、機体も十分に温まっているため、ヒータ弱でも奥側衣類を乾燥させるのに十分であるからである。また、後部吹き出し口５２の面積は前部吹き出し口３２より大きくしてあるため、送風ユニット２８の回転数を変えずに乾燥後半の運転をすると、乾燥前半に比べ大風量の風で乾燥するため、乾燥スピードをより一層速くすることができる。さらに、乾燥前半と乾燥後半の風量を同じにするよう、乾燥後半の送風ユニット２８の回転数を下げても良い。こうすることで、送風ユニット２８の入力を低減できるため、消費電力を低減できる。 Therefore, in the first half of drying, the heater 31 is set to the strong mode, the switching valve 54 and the intake / exhaust valve 55 are closed, and high-speed air is blown out from the front outlet 32. In the latter half of the drying, the switching valve 54 and the intake / exhaust valve 55 are opened, the heater 31 is set to the weak mode, and hot air is blown out from the rear outlet 52. In the first half of drying, drying proceeds at a high drying speed due to the effect of the high-speed wind described above. When the drying progresses and the garment on the front side is almost dried after entering the reduced rate drying period, hot air is blown out from the rear outlet 52. Since warm air hits the clothing on the back side that was difficult to dry with only warm air from the front outlet 32, the drying of the back clothing proceeds rapidly. The reason why the heater 31 was weakened in the latter half of the drying was that the drying of the clothes on the back side had progressed to the extent that the drying of the back side was in the decreasing rate drying period, and the fuselage was sufficiently warmed. This is because it is sufficient for drying. Further, since the area of the rear outlet 52 is larger than that of the front outlet 32, if the operation in the latter half of drying is performed without changing the rotational speed of the blower unit 28, the air is dried with a larger air volume than in the first half of drying. The drying speed can be further increased. Further, the rotational speed of the blower unit 28 in the latter half of drying may be lowered so that the air volume in the first half of drying and the latter half of drying are the same. By doing so, the input of the blower unit 28 can be reduced, so that power consumption can be reduced.
以上のように、乾き難かった奥側衣類の乾燥を効率よく行えるため、無駄な電力消費を抑えることができるとともに、衣類の乾きむらを防止し、衣類の温度が上昇し過ぎるのを防止できる。 As described above, since it is possible to efficiently dry the back-side clothing that is difficult to dry, it is possible to suppress wasteful power consumption, prevent uneven clothing drying, and prevent the clothing temperature from rising excessively.
図１５は、本実施例による乾燥中の衣類温度変化と含水量の変化を示したものである。乾燥前半は、従来機の温度変化と同様であるが、吹き出し口を後部に切り換えた乾燥後半は、奥側衣類の温度が急激に上昇し乾燥していくのが分かる。一方、温風が当たらなくなる前側衣類の温度は若干低下していくが、すでに乾いているためになんら問題はない。このように、乾燥後半に奥側衣類を効果的に乾燥できるため、乾燥時間も前部吹き出し口のみの場合のｔ１より短いｔ２とすることができ、時間と消費電力を低減できる。 FIG. 15 shows changes in clothing temperature and moisture content during drying according to this example. The first half of the drying is the same as the temperature change of the conventional machine, but in the second half of the drying when the outlet is switched to the rear, it can be seen that the temperature of the back clothing rises rapidly and dries. On the other hand, the temperature of the front garment, which is no longer exposed to hot air, decreases slightly, but there is no problem because it is already dry. Thus, since the back clothing can be effectively dried in the latter half of drying, the drying time can be set to t2 shorter than t1 in the case of only the front outlet, and time and power consumption can be reduced.
また、更に消費電力量を低減するために、乾燥後半ではヒータ３１をＯＦＦとしてもよい。乾燥前半で衣類や外槽２，洗濯兼脱水槽３の温度が十分に高くなっており、かつ筐体１内の空気の温度も上昇している。乾燥後半で吸排気弁５５を開くと筐体１内の暖められた空気が吸込まれ、送風ユニット２８で断熱圧縮され温度が更に上昇する。本実施例の場合、送風ユニット２８の回転数が毎分１４０００回転であり、送風ファンでの温度上昇は８℃程度である。そして、外槽２の外周面に密着して設けた後部ダクト５１を通る間に外槽２から熱をもらい更に温度上昇するため、ヒータなしでも、温風を後部吹き出し口５２から吹き出すことができるからである。周囲温度が２０℃の場合で、後部吹き出し口からの吹き出し温度は乾燥後半直後で５０℃程度、時間の経過とともに温度は低下するが、乾燥終了時で３５℃程度である。 In order to further reduce the power consumption, the heater 31 may be turned off in the latter half of the drying. In the first half of drying, the temperature of the clothes, the outer tub 2 and the washing / dehydrating tub 3 is sufficiently high, and the temperature of the air in the housing 1 is also increased. When the intake / exhaust valve 55 is opened in the latter half of the drying, the warmed air in the housing 1 is sucked and adiabatically compressed by the blower unit 28 to further increase the temperature. In the case of the present embodiment, the rotational speed of the blower unit 28 is 14000 revolutions per minute, and the temperature rise at the blower fan is about 8 ° C. And since heat is further received from the outer tub 2 while passing through the rear duct 51 provided in close contact with the outer peripheral surface of the outer tub 2, the warm air can be blown out from the rear outlet 52 without a heater. Because. In the case where the ambient temperature is 20 ° C., the blowing temperature from the rear blowing port is about 50 ° C. immediately after the latter half of the drying, and the temperature decreases with time, but is about 35 ° C. at the end of drying.
以上、消費電力量の観点から説明してきたが、本実施の形態例は乾燥時のしわ防止の点からも有利である。すなわち、乾燥前半は前部吹き出し口３２から風速約１００ｍ／ｓ，風量約１.６ｍ3／minの温風を吹き出し、風圧で衣類を押し広げることで衣類のしわを防ぎながら乾燥を行っている。しかしながら、衣類の量が多いと洗濯兼脱水槽３の奥側にある衣類には高速の風が当たりにくいため、奥側衣類のしわ付きを防ぐことはできない。乾燥後半に切り替わる時点で、奥側衣類は減率乾燥期間に入る程度まで乾いており、乾燥度は０.９程度である。乾燥度が０.９を越すと、その時衣類に付いていたしわを取るのが困難になっていく。本実施例では、奥側衣類の乾燥度が０.９程度の時点で後部吹き出し口５２から温風を吹き出すため、後側衣類のしわを伸ばす効果がある。しわを伸ばす効果で考えると、後部吹き出し口５２からの風速，風量は前部吹き出し口３２と同程度であることが望ましい。ただし、洗濯兼脱水槽３が回転することで、フランジ２３の放射状リブに高速の風が当たり、風きり音が発生する。このため、本実施例では、後部吹き出し口５２の面積を前部吹き出し口の面積より大きくし、風速７０ｍ／ｓ，風量１.７ｍ3／minに設定し、風きり音を低減している。このように風速を落としても、従来の一般的な洗濯乾燥機の風速（１０〜２０ｍ／ｓ）に較べ十分に速く、前部吹き出し口のしわ伸ばし効果よりもやや低下するが、十分なしわ伸ばし効果を有する。なお、乾燥後半には前側衣類には温風が吹付けられないが、しわが少ない状態で乾燥しているため、乾燥後半の運転中にしわが増加することはほとんどない。 Although described above from the viewpoint of power consumption, the present embodiment is advantageous in terms of preventing wrinkles during drying. That is, in the first half of drying, warm air with a wind speed of about 100 m / s and an air volume of about 1.6 m 3 / min is blown out from the front outlet 32, and drying is performed while preventing the wrinkles of the clothes by pushing and spreading the clothes with the wind pressure. . However, if the amount of clothes is large, the clothes on the back side of the washing and dewatering tub 3 are not easily hit by high-speed wind, and thus the wrinkles of the back side clothes cannot be prevented. At the time of switching to the latter half of the drying, the back clothing is dried to the extent that it enters the decreasing rate drying period, and the dryness is about 0.9. When the dryness exceeds 0.9, it becomes difficult to remove wrinkles from the clothes. In the present embodiment, since the warm air is blown out from the rear outlet 52 when the dryness of the back garment is about 0.9, there is an effect of stretching the wrinkles of the rear garment. Considering the effect of stretching the wrinkles, it is desirable that the wind speed and the air volume from the rear outlet 52 are substantially the same as those of the front outlet 32. However, when the washing and dewatering tub 3 rotates, high-speed wind hits the radial ribs of the flange 23, and wind noise is generated. For this reason, in this embodiment, the area of the rear outlet 52 is made larger than the area of the front outlet, and the wind speed is set to 70 m / s and the air volume 1.7 m 3 / min to reduce wind noise. Even if the wind speed is reduced in this way, it is sufficiently faster than the wind speed (10 to 20 m / s) of a conventional general washing dryer, which is slightly lower than the wrinkle-stretching effect of the front outlet, but is sufficiently wrinkled. Has a stretching effect. Note that warm air is not blown to the front garment in the latter half of the drying, but the wrinkles hardly increase during the operation in the latter half of the drying because it is dried with less wrinkles.
ところで、乾燥効率を更に向上するために、切り換え弁５４を中立の位置にして、前部吹き出し口３２と後部吹き出し口５２の両方から同時に温風を吹き出すようにすることも考えられる。しかし、本実施例の送風ユニット２８の能力では、１００ｍ／ｓの風速を確保しようとすると、吹き出し口１つ当たりの風量が０.８ｍ3／min程度になり、この風量では、しわを伸ばす効果が少なく、本実施例と同等の乾燥仕上がりを得ることができない。送風ユニットの能力を２倍化すると、前後同時吹き出しで仕上がりを良くすることができるが、送風ユニットを運転するための電力も２倍化するため、商用電源（１００Ｖ，１５Ａ）ではヒータの入力を小さくする必要があり、温風の温度が低下してしまうため、得策ではない。また、送風ユニットが大型化するため、洗濯乾燥機の筐体サイズを大型化せざるを得ず、設置性（省スペース化）の観点からも課題となる。ただし、温風の熱源として、ヒートポンプ方式を使用する場合は、熱源の入力が小さくても十分な熱量を得られるため、前後同時吹き出しによる、高効率乾燥と高仕上げ乾燥を実現可能である。 By the way, in order to further improve the drying efficiency, it is also conceivable that the switching valve 54 is set to a neutral position so that warm air is blown out from both the front outlet 32 and the rear outlet 52 simultaneously. However, with the capacity of the blower unit 28 of the present embodiment, when an air speed of 100 m / s is to be secured, the air volume per outlet is about 0.8 m 3 / min, and this air volume has the effect of stretching wrinkles. Therefore, it is impossible to obtain a dry finish equivalent to that of the present example. If the capacity of the blower unit is doubled, the finish can be improved by blowing out the front and back simultaneously. However, since the power for operating the blower unit is also doubled, the commercial power supply (100V, 15A) requires input of the heater. This is not a good idea because it needs to be small and the temperature of the hot air drops. In addition, since the blower unit is increased in size, the casing size of the washing / drying machine must be increased, which is also a problem from the viewpoint of installation (space saving). However, when a heat pump system is used as a heat source for warm air, a sufficient amount of heat can be obtained even if the input of the heat source is small, so that high-efficiency drying and high-finish drying by simultaneous front and rear blowing can be realized.
本実施の形態例では、洗濯兼脱水槽３の前後に吹き出し口１つずつ設け、吸気口は１つの構成としている。これは、前後の吹き出し口を切り換え弁で切り換えることで、単一の送風ユニットで実現することができ、コンパクトで低コストな洗濯乾燥機とすることができる。 In the present embodiment, one outlet is provided before and after the washing and dewatering tub 3, and the number of intake ports is one. This can be realized with a single blower unit by switching the front and rear outlets with a switching valve, and can be a compact and low-cost washing and drying machine.
また、前部吹き出し用の温風循環経路は閉ループで構成し、後部吹き出し用の温風循環経路は開ループで形成し、吸排気弁で閉ループと開ループを切り換える構成としている。
乾燥前半から乾燥後半に切り替わる時点で、後側衣類は減率乾燥期間に入る程度まで乾いており、衣類の含水量は少なくなっている。このため、乾燥後半では衣類に当たった後に空気に含まれる水分はそれほど多くない。このため、乾燥後半も閉ループのまま乾燥ダクト内で水冷除湿しても良いが、乾燥後半はヒータ弱あるいはヒータＯＦＦの運転をするので、温風温度が低目となるため除湿の効率はあまり高くない。そこで、温風循環経路を開ループとし、筐体内から乾いた空気を吸込み、衣類から蒸発した水分を含む空気を排気する構成としたほうが、短時間で乾燥を終了できる。この時室内に放出する湿気は洗濯物を部屋干しした場合に較べはるかに少なく、室内が湿気ることはほとんどない。
Further, the warm air circulation path for the front blowing is configured as a closed loop, the warm air circulation path for the rear blowing is formed as an open loop, and the closed loop and the open loop are switched by the intake / exhaust valve.
At the time of switching from the first half of drying to the second half of drying, the rear garment is dry enough to enter the reduced rate drying period, and the moisture content of the garment is reduced. For this reason, in the latter half of drying, the moisture contained in the air after hitting the clothes is not so much. For this reason, water-cooled dehumidification may be performed in the drying duct in the latter half of the drying while it is in a closed loop. However, since the heater is operated weakly or the heater is turned off in the latter half of the drying, the hot air temperature is low and the dehumidifying efficiency is too high Absent. Therefore, drying can be completed in a shorter time by setting the hot air circulation path as an open loop, sucking dry air from the inside of the housing, and exhausting air containing moisture evaporated from the clothing. At this time, the moisture released into the room is much less than when the laundry is dried in the room, and the room is hardly humid.
次に、排気を室内に放出しない実施例について、図１６及び図１７を用いて説明する。乾燥ダクト２９上部のフィルタダクト２７との接続部近傍に、吸気弁６０を有する。図１６は図４の二点鎖線Ｄ−Ｄで切断した断面図で吸気弁６０の詳細を示す。吸気弁６０は駆動用モータ６０ａと弁体６０ｂと弁座６０ｃとで構成される。弁体６０ｂの端部に設けた回転軸６０ｄを駆動モータで回転することにより弁体６０ｂが回転するようになっている。図１６に示すように弁体６０ｂで弁座６０ｃを塞いだ状態を吸気弁閉、二点鎖線で示すように乾燥ダクト２９とフィルタダクト２７を遮断した状態を吸気弁開と呼ぶ。吸気弁６０を開にすると、吸気口６１が形成される。 Next, an embodiment in which exhaust is not released into the room will be described with reference to FIGS. 16 and 17. An intake valve 60 is provided in the vicinity of the connection with the filter duct 27 at the top of the drying duct 29. FIG. 16 is a cross-sectional view taken along the two-dot chain line DD in FIG. 4 and shows details of the intake valve 60. The intake valve 60 includes a drive motor 60a, a valve body 60b, and a valve seat 60c. The valve body 60b is rotated by rotating a rotary shaft 60d provided at the end of the valve body 60b with a drive motor. The state in which the valve seat 60c is closed with the valve body 60b as shown in FIG. 16 is called the intake valve closed, and the state in which the drying duct 29 and the filter duct 27 are shut off as shown by the two-dot chain line is called the intake valve open. When the intake valve 60 is opened, an intake port 61 is formed.
乾燥運転時の風の流れを、図１７の構造模式図に示す。本実施例においても、切り換え弁５４と吸気弁が両方閉もしくは、両方開の二通りの運転を行う。両方開の場合（図１７実線矢印）については、上述した実施の形態例と同様であるので説明を省略し、両方が開の場合（図１７破線矢印）について述べる。送風ユニット２８を運転すると、筐体１内の空気は吸気口５６からフィルタダクト２７に吸込まれる（破線矢印４６）。そして、吸気ダクト３３に入り送風ユニットに吸込まれ（矢印４４）、蛇腹管継ぎ手３０ｂから後部ダクト５１に入り（破線矢印４７）、後部ダクトで外槽２の背面に導かれ、後部吹き出し口５２から洗濯兼脱水槽３の後側から洗濯兼脱水槽３内に吹き込み（破線矢印４８）、洗濯兼脱水槽３内の奥側の衣類に当たり、衣類から水分を蒸発させる。そして、洗濯兼脱水槽３に設けた貫通孔から外槽２に流れ、一部はオーバーフロー口２ｅからオーバーフローホース２ｆを通り（破線矢印４９）排水ホース２６から機外へ排気される。残りは、排水口２ｂから排水弁２５を通り（破線矢印５０）、オーバーフローホース２ｆからの流れと合流し排水ホース２６から機外へ排出される。通常、排水ホースは、配水管に接続されているため、配水管内に排気され、室内に排気されないため、室内の湿気が増加することを防止できる。 The flow of the wind during the drying operation is shown in the structural schematic diagram of FIG. In this embodiment, the switching valve 54 and the intake valve are both closed or both open. The case where both are open (solid arrow in FIG. 17) is the same as that of the above-described embodiment, so the description thereof will be omitted, and the case where both are open (broken arrow in FIG. 17) will be described. When the blower unit 28 is operated, the air in the housing 1 is sucked into the filter duct 27 from the air inlet 56 (broken line arrow 46). Then, the air enters the intake duct 33 and is sucked into the blower unit (arrow 44), enters the rear duct 51 from the bellows pipe joint 30b (broken line arrow 47), is led to the back of the outer tub 2 by the rear duct, and from the rear outlet 52 Blowing into the washing and dehydrating tub 3 from the back side of the washing and dehydrating tub 3 (broken line arrow 48) hits the clothing on the back side in the washing and dehydrating tub 3, and evaporates moisture from the garment. And it flows into the outer tank 2 from the through-hole provided in the washing and dewatering tank 3, and a part passes through the overflow hose 2f from the overflow port 2e (broken line arrow 49) and is exhausted from the drain hose 26 to the outside of the machine. The rest passes through the drain valve 25 from the drain port 2b (broken line arrow 50), merges with the flow from the overflow hose 2f, and is discharged from the drain hose 26 to the outside of the machine. Usually, since the drain hose is connected to the water distribution pipe, it is exhausted into the water distribution pipe and not exhausted into the room, so that it is possible to prevent the humidity in the room from increasing.
以上述べてきた実施の形態例は、前部吹き出し用の温風循環経路を閉ループで構成し、後部吹き出し用温風循環経路を開ループで構成したが、逆に構成しても全く同様の効果を得られる。この場合の空気の流れを図１８の構造模式図に示す（構成は図１２に示した場合と同じである）。この場合の運転は、乾燥前半は後部吹き出し口５２から温風を吹き出し、乾燥後半は前部吹き出し口３２から温風を吹き出すようにする。後部吹き出し口５２から温風を吹き出す場合、切り換え弁５４を開き、吸排気弁５５を閉じると、空気は図中破線矢印で示すように流れる。送風ユニット２８を運転し、ヒータ３１に通電すると、蛇腹管継ぎ手３０ｂから後部ダクト５１に入り（破線矢印４７）、後部ダクトで外槽２の背面に導かれ、後部吹き出し口５２から洗濯兼脱水槽３の後側から洗濯兼脱水槽３内に吹き込み（破線矢印４８）、洗濯兼脱水槽３内の奥側の衣類に当たり、衣類から水分を蒸発させる。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から乾燥ダクト２９に吸い込まれ、乾燥ダクト２９を下から上へ流れる（破線矢印６２）。乾燥ダクト２９に設けてある水冷除湿機構で冷却除湿され、乾いた低温空気となりフィルタダクト２７へ入る（破線矢印６７）。フィルタダクト２７に設けたメッシュフィルタ８ａを通り糸屑が取り除かれ、吸気ダクト３３に入り、送風ユニット２８に吸い込まれ、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。 In the embodiment described above, the hot air circulation path for the front blowing is configured in a closed loop, and the hot air circulation path for the rear blowing is configured in an open loop. Can be obtained. The flow of air in this case is shown in the structural schematic diagram of FIG. 18 (the configuration is the same as that shown in FIG. 12). In the operation in this case, warm air is blown out from the rear outlet 52 in the first half of drying, and hot air is blown out from the front outlet 32 in the second half of drying. When the hot air is blown out from the rear outlet 52, when the switching valve 54 is opened and the intake / exhaust valve 55 is closed, the air flows as shown by broken line arrows in the figure. When the air blower unit 28 is operated and the heater 31 is energized, it enters the rear duct 51 from the bellows pipe joint 30b (broken line arrow 47), is led to the back of the outer tub 2 by the rear duct, and is washed and dewatered from the rear outlet 52. 3 is blown into the washing / dehydrating tub 3 from the rear side (broken line arrow 48), hits the clothing on the back side in the washing / dehydrating tub 3, and evaporates moisture from the clothing. The air that has become hot and humid flows from the through hole provided in the washing and dewatering tub 3 to the outer tub 2, is sucked into the drying duct 29 from the air inlet 2 a, and flows through the drying duct 29 from the bottom to the top (dashed arrow 62). . The water is cooled and dehumidified by a water cooling and dehumidifying mechanism provided in the drying duct 29, and becomes dry low-temperature air and enters the filter duct 27 (broken arrow 67). The lint is removed through the mesh filter 8 a provided in the filter duct 27, enters the intake duct 33, is sucked into the blower unit 28, is heated again by the heater 31, and is circulated so as to be blown into the washing and dewatering tub 3.
前部吹き出し口３２から温風を吹き出す場合は切り換え弁５４を閉じ、吸排気弁５５を開く。送風ユニット２８を運転すると、筐体１内の空気は吸気口５６からフィルタダクト２７に吸込まれる（矢印６５）。そして、フィルタ８，送風ユニット２８，ヒータ３１を通り、前部吹き出し口３２から洗濯兼脱水槽内３内に吹き込む（矢印４１）。洗濯兼脱水槽３内の前側衣類に当たり、衣類から水分を蒸発させる。そして、洗濯兼脱水槽３に設けた貫通孔から外槽に流れ、吸気口２ａから乾燥ダクト２９に押し込まれる（矢印４２）。乾燥ダクト２９を下から上へ流れ排気口５７から排気ダクト５８に入りフィルタ５９で糸屑を取り除かれ、機外へ排気される（矢印６４）。 When warm air is blown out from the front outlet 32, the switching valve 54 is closed and the intake / exhaust valve 55 is opened. When the blower unit 28 is operated, the air in the housing 1 is sucked into the filter duct 27 from the intake port 56 (arrow 65). Then, it passes through the filter 8, the blower unit 28, and the heater 31, and is blown into the washing / dehydrating tub 3 from the front blowing port 32 (arrow 41). It hits the front garment in the washing and dewatering tub 3 and evaporates moisture from the garment. And it flows into the outer tub from the through-hole provided in the washing and dewatering tub 3, and is pushed into the drying duct 29 from the air inlet 2a (arrow 42). The drying duct 29 flows from the bottom to the top, enters the exhaust duct 58 through the exhaust port 57, the yarn waste is removed by the filter 59, and is exhausted outside the machine (arrow 64).
以上、本実施例によれば、前半の温風循環経路を閉ループで形成し、後半の温風循環経路を開ループ形成に切り換えることにより、湿気を帯びた空気の機外へ排出が抑えられかつ、消費電力を低減することができる。また、乾燥経路の切り換えと同時に、温風の吹き出し方向を変えられるので、乾燥前半とは異なる方向から温風を衣類に当てることができ、乾きむらを抑制することもできるのである。 As described above, according to the present embodiment, by forming the first half warm air circulation path in a closed loop and switching the second half warm air circulation path to an open loop formation, it is possible to suppress the discharge of humid air to the outside of the machine and , Power consumption can be reduced. Moreover, since the blowing direction of the warm air can be changed simultaneously with the switching of the drying route, the warm air can be applied to the clothes from a direction different from the first half of the drying, and uneven drying can be suppressed.
また、乾燥運転中に衣類に高速の温風を直接吹き付けるので、衣類と風との熱伝達率が向上し、温風が効率よく衣類を温める。また、風速が高いため、回転ドラムの奥にある衣類への風が当たりやすい。 In addition, since high-speed hot air is directly blown onto the clothes during the drying operation, the heat transfer coefficient between the clothes and the wind is improved, and the warm air efficiently warms the clothes. Moreover, since the wind speed is high, it is easy to hit the clothes behind the rotating drum.
さらに、乾燥の後半で後吹き出し口から風を吹き込むようにしているため、乾きにくい回転ドラムの奥側にある衣類の乾燥が促進され、乾きむらが防止できるとともに乾燥時間が短く消費電力が少ない乾燥を実現できる。 In addition, since air is blown from the rear outlet in the latter half of the drying, drying of the clothing on the back side of the rotating drum which is difficult to dry is promoted, drying unevenness can be prevented and drying time is short and power consumption is low Can be realized.
また、乾燥後半は衣類の温度が十分に上昇しているため、後吹き出し口から風を吹き込む場合に加熱手段を弱運転にすることで消費電力を低減できる。あるいは、加熱手段の通電を止め、乾燥前半で温められた筐体内部の空気を吸気手段から吸い込み衣類に吹き付けるようにすることで加熱手段を使わなくても温風を供給できるため、更に消費電力を低減できる。 In addition, since the temperature of the clothes is sufficiently increased in the second half of drying, the power consumption can be reduced by setting the heating means to a weak operation when blowing air from the rear outlet. Or, by turning off the power to the heating means and sucking the air inside the casing warmed in the first half of the drying from the air intake means and blowing it on the clothing, hot air can be supplied without using the heating means. Can be reduced.
また、乾燥後半に後吹き出し口から風を吹き込む場合は、筐体内の乾いた空気を吸い込み、回転ドラム内の湿った空気を筐体外へ排気しているため、衣類から効率よく水分を除去でき消費電力を低減できる。このようにすることで、衣類の乾きすぎによる衣類の温度上昇を防止できるため、衣類へのダメージを抑えることもできる。 In addition, when blowing air from the rear outlet in the latter half of the drying process, the dry air in the housing is sucked in and the moist air in the rotating drum is exhausted outside the housing. Electric power can be reduced. By doing in this way, since the temperature rise of the clothing due to excessive drying of the clothing can be prevented, damage to the clothing can also be suppressed.
また、前吹き出し口の風速より後吹き出し口の風速を遅くしているので、後吹き出し口から吹き出した風が回転ドラム底板に当たるときに発生する風切り音を低減できる。 Further, since the wind speed at the rear outlet is slower than that at the front outlet, wind noise generated when the wind blown from the rear outlet hits the rotating drum bottom plate can be reduced.
また、吸い込み口と後吹き出し口との位置関係を回転ドラムの回転軸を介在させて離れた位置に設けてあるので、後吹き出し口から吹き出した風が衣類に当たらずに吸い込み口から吸い込まれることを防止でき、効率よく回転ドラム奥側の衣類を乾燥できる。 In addition, since the positional relationship between the suction port and the rear outlet is provided at a position separated by the rotation shaft of the rotary drum, the wind blown from the rear outlet can be sucked from the inlet without hitting the clothing. Can be prevented, and the clothes behind the rotating drum can be efficiently dried.
１ 筐体
２ 外槽
２ｄ 外槽カバー
３ 洗濯兼脱水槽
４，２８ａ 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
２７ フィルタダクト
２８ 送風ユニット
２８ｂ ファンケース
２９ 乾燥ダクト
３１ ヒータ
３２ 前部吹き出し口
３２ｄ ノズル
３３ 吸気ダクト
３８ 制御装置
５１ 後部ダクト
５２ 後部吹き出し口
５３ ラビリンスシール
５４ 切り換え弁
５５ 吸排気弁
６０ 吸気弁
DESCRIPTION OF SYMBOLS 1 Case 2 Outer tub 2d Outer tub cover 3 Washing / dehydration tub 4, 28a Motor 6 Operation panel 8 Drying filter 9 Door 16 Water supply solenoid valve 27 Filter duct 28 Blower unit 28b Fan case 29 Drying duct 31 Heater 32 Front outlet 32d Nozzle 33 Intake duct 38 Control device 51 Rear duct 52 Rear outlet 53 Labyrinth seal 54 Switching valve 55 Intake / exhaust valve 60 Intake valve
Claims (1)
前記乾燥手段は、前記回転ドラム内の空気を吸い込み吐き出す単一の送風ユニットと、複数個の吹き出し口を有し、
前記複数個の吹き出し口は、前記回転ドラムの前側の上から風を吹き付ける前吹き出し口と、前記回転ドラムの後側の上から風を吹き付ける後吹き出し口を備え、
前記前吹き出し口の面積を、前記後吹き出し口の面積より小さくし、
乾燥運転中に、前記単一の送風ユニットを運転し、前記前吹き出し口と前記後吹き出し口とから同時に前記温風を吹き出して、前記外槽の底面下部に設けられた吸気口から吸い込まれることを特徴とする洗濯乾燥機。 A rotating drum for storing clothing; a motor for driving the rotating drum; an outer tub for storing the rotating drum; a housing for supporting the outer tub; and a drying means for blowing hot air into the rotating drum. Equipped with a heat pump as a heat source of the warm air, and the washing / drying machine in which the rotation center axis of the rotating drum is inclined so that the opening side is high ,
The drying means has a single air blowing unit that sucks and discharges air in the rotating drum, and a plurality of outlets.
The plurality of outlets include a front outlet that blows wind from above the front side of the rotating drum, and a rear outlet that blows wind from above the rear side of the rotating drum,
The area of the front outlet is smaller than the area of the rear outlet;
During drying operation, to operate the single blower unit, and blown the warm air simultaneously from said front outlet and the rear outlet, is sucked from the intake port provided on a bottom surface lower portion of the outer tub A washing dryer characterized by that.
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| JP2013150048A JP5600779B2 (en) | 2013-07-19 | 2013-07-19 | Washing and drying machine |
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| JP2009171718A Division JP5325689B2 (en) | 2009-07-23 | 2009-07-23 | Dryer and washing dryer |
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| JP6845028B2 (en) * | 2016-04-27 | 2021-03-17 | 東芝ライフスタイル株式会社 | Washing and drying machine |
| JP6736053B2 (en) * | 2016-05-23 | 2020-08-05 | 青島海爾洗衣机有限公司ＱｉｎｇＤａｏ Ｈａｉｅｒ Ｗａｓｈｉｎｇ Ｍａｃｈｉｎｅ Ｃｏ．，Ｌｔｄ． | Washing and drying machine |
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| KR101041070B1 (en) * | 2003-06-13 | 2011-06-13 | 삼성전자주식회사 | Drum Washing Machine |
| US7020985B2 (en) * | 2004-03-26 | 2006-04-04 | Whirlpool Corporation | Multiple outlet air path for a clothes dryer |
| KR100697083B1 (en) * | 2005-04-06 | 2007-03-20 | 엘지전자 주식회사 | Washing machine with dryer |
| JP4685571B2 (en) * | 2005-09-22 | 2011-05-18 | パナソニック株式会社 | Drum type washer / dryer |
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