JP2006239123A - Dryer - Google Patents

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JP2006239123A
JP2006239123A JP2005058676A JP2005058676A JP2006239123A JP 2006239123 A JP2006239123 A JP 2006239123A JP 2005058676 A JP2005058676 A JP 2005058676A JP 2005058676 A JP2005058676 A JP 2005058676A JP 2006239123 A JP2006239123 A JP 2006239123A
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air
air passage
dehumidifying
water
cooling water
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JP4290132B2 (en
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Nobuhisa Koumoto
伸央 甲元
Yoshioki Fujimoto
宜意 冨士本
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Sanyo Electric Co Ltd
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Sanyo Electric Co Ltd
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Priority to JP2005058676A priority Critical patent/JP4290132B2/en
Priority to KR1020060019752A priority patent/KR100656868B1/en
Priority to CNB2006100582883A priority patent/CN100420909C/en
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/20General details of domestic laundry dryers 
    • D06F58/206Heat pump arrangements
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F35/00Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005Methods for washing, rinsing or spin-drying
    • D06F35/007Methods for washing, rinsing or spin-drying for spin-drying only
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/10Drying cabinets or drying chambers having heating or ventilating means
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F58/00Domestic laundry dryers
    • D06F58/20General details of domestic laundry dryers 
    • D06F58/24Condensing arrangements
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/28Air properties
    • D06F2103/36Flow or velocity
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/56Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers related to air ducts, e.g. position of flow diverters
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/28Electric heating
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2105/00Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
    • D06F2105/30Blowers
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To increase dehumidifying effect in a circulating air passage, reduce the amount of cooling water used while securing drying effect, and increase water conservation. <P>SOLUTION: A side vertical air passage 33 for directing damp air exhausted from an outer tub 11 upward is provided with a first constricted portion 52 obtained by inward swelling the whole of the inside wall of the air passage so as to have a reduced cross-sectional area, and a second constricted portion 56 provided below the first constricted portion and obtained by inward swelling only the inside wall of the outer tub 11 side so as to have a reduced cross-sectional area. Water poured from a cooling water supply port 35 into the side vertical air passage 33 falls in a shower form from above, and the water rebounds at the first constricted portion 52 to form a water droplet-dispersing area. The water and condensed water flow down to form a water film spreading in the air passage at the second constricted portion 56. The damp air is efficiently cooled by the water film and the water droplet-dispersing area to be dehumidified. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は濡れた洗濯物を乾燥するための乾燥機に関し、更に詳しくは、水冷式の乾燥機に関する。なお、本発明に係る乾燥機は、乾燥のみを行う衣類乾燥機に適用できるほか、洗濯に引き続いて乾燥を行う洗濯乾燥機にも適用することができる。   The present invention relates to a dryer for drying wet laundry, and more particularly to a water-cooled dryer. The dryer according to the present invention can be applied not only to a clothes dryer that performs only drying, but also to a laundry dryer that performs drying subsequent to washing.

ドラム式洗濯乾燥機は、水平軸又は傾斜軸を中心に円筒籠状のドラムを外槽の内部に回転自在に配置した構成を有し、ドラム内に洗濯物を収容して水を貯留した外槽内で回転させることによって洗濯物の叩き洗いやすすぎを行い、さらに洗濯の後には、外槽内に加熱空気を送り込むことによって濡れた洗濯物を乾燥させる。   The drum-type washing and drying machine has a configuration in which a cylindrical bowl-shaped drum is rotatably disposed inside an outer tub with a horizontal axis or an inclined axis as a center, and the laundry is stored in the drum to store water. By rotating in the tub, the laundry is easily washed and washed, and after washing, the wet laundry is dried by sending heated air into the outer tub.

こうした乾燥運転を行うために、ドラム式洗濯乾燥機では、外槽内に加熱空気を送り込む一方、濡れた洗濯物から吐き出された水蒸気を含む湿った空気を外槽の外側へと取り出し、水冷式の熱交換器を通して水蒸気を凝縮液化させることにより乾いた空気とし、その空気を再びヒータで加熱して外槽内へと送り込む、という循環風路を備える(特許文献1など参照)。そのため、こうした洗濯乾燥機では洗濯運転時のみならず、乾燥運転時にも除湿用冷却水として水道水を使用する。   In order to perform such a drying operation, in the drum-type washing dryer, heated air is sent into the outer tub, while moist air including water vapor discharged from wet laundry is taken out of the outer tub, and the water-cooled type It is provided with a circulation air path in which water vapor is condensed and liquefied through a heat exchanger, and the air is heated again by a heater and sent into the outer tub (see Patent Document 1, etc.). Therefore, such a washing dryer uses tap water as cooling water for dehumidification not only during the washing operation but also during the drying operation.

近年、環境保護や省資源等の観点から洗濯乾燥機では節水性が重要視されており、洗濯運転時の使用水量を減らすのはもちろんのこと、乾燥運転時に使用する水の量を減らすことが大きな課題となっている。上記特許文献1に記載の従来の洗濯乾燥機でも、除湿効率を高めることで乾燥時に使用する水の使用量を抑える工夫がなされてはいるものの、それでも標準的な1回の洗濯及び乾燥運転を実行した場合、洗濯運転時の水の総使用量の半分程度の水を乾燥運転時に使用してしまう。従来、乾燥運転時の水の使用量はあまり注目されることがなかったが、乾燥機能が付いた洗濯乾燥機が広く使用されるようになってくるに伴い、乾燥運転時に使用する水量をさらに減らすことが強く要望されている。   In recent years, water-saving is important in washing and drying machines from the viewpoints of environmental protection and resource saving. Not only reducing the amount of water used during washing operations, but also reducing the amount of water used during drying operations. It has become a big issue. Even in the conventional washing and drying machine described in the above-mentioned Patent Document 1, although the dehumidification efficiency has been devised to reduce the amount of water used at the time of drying, the standard single washing and drying operation is still performed. When executed, about half of the total amount of water used during the washing operation is used during the drying operation. Conventionally, the amount of water used during the drying operation has not received much attention. However, as washing dryers with a drying function are widely used, the amount of water used during the drying operation is further increased. There is a strong demand for reduction.

特開2003−205193号公報JP 2003-205193 A

本発明は上記課題を解決するために成されたものであり、その主な目的は、乾燥運転時に必要な除湿用冷却水の量を低減しながら高い熱交換効率を達成して、良好な乾燥を行うことができる乾燥機を提供することにある。   The present invention has been made to solve the above-mentioned problems, and its main purpose is to achieve high heat exchange efficiency while reducing the amount of cooling water for dehumidification required during drying operation, and to achieve good drying. It is in providing the dryer which can perform.

上記課題を解決するために成された第1発明は、乾燥対象である濡れた洗濯物が内部に収容される乾燥槽と、該乾燥槽内から空気を吸い込んで再び該乾燥槽内に送り込むための循環風路と、該循環風路内にあって前記乾燥槽より送られて来る湿った空気を冷却して水蒸気を凝縮液化させる除湿手段と、前記循環風路内で前記除湿手段よりも下流側にあって該除湿手段により除湿された空気を加熱する加熱手段と、を具備する乾燥機において、
前記除湿手段は、
前記循環風路の一部を成し、湿った空気を下方から上方へと流通させる除湿風路と、
該除湿風路内に除湿用の冷却水を供給する冷却水供給手段と、
前記除湿風路内で前記冷却水供給手段による冷却水の供給位置よりも下方にあって、該冷却水を対向する内壁面側に向かって放出させるために該除湿風路の内壁面に設けられた凸部と、
該凸部の下方にあって風路の横断面内で前記凸部の頂部から離れるほど空気流の速度が大きくなるように空気流の速度分布を生じさせる空気流生起手段と、
を有することを特徴としている。
In order to solve the above-mentioned problems, the first invention is a drying tub in which wet laundry to be dried is accommodated, and for sucking air from the drying tub and sending it into the drying tub again. A circulating air passage, dehumidifying means for cooling the humid air sent from the drying tank in the circulating air passage to condense and liquefy water vapor, and downstream of the dehumidifying means in the circulating air passage And a heating means for heating the air dehumidified by the dehumidifying means on the side,
The dehumidifying means includes
A dehumidifying air passage that forms part of the circulation air passage and circulates moist air from below to above;
Cooling water supply means for supplying cooling water for dehumidification into the dehumidifying air passage;
Provided on the inner wall surface of the dehumidifying air passage in the dehumidifying air passage below the cooling water supply position by the cooling water supply means and for releasing the cooling water toward the opposing inner wall surface. Convex parts,
An air flow generating means for generating a velocity distribution of the air flow so that the velocity of the air flow increases as the distance from the top of the convex portion is lower than the convex portion in the cross section of the air passage;
It is characterized by having.

また上記課題を解決するために成された第2発明は、乾燥対象である濡れた洗濯物が内部に収容される乾燥槽と、該乾燥槽内から空気を吸い込んで再び該乾燥槽内に送り込むための循環風路と、該循環風路内にあって前記乾燥槽より送られて来る湿った空気を冷却して水蒸気を凝縮液化させる除湿手段と、前記循環風路内で前記除湿手段よりも下流側にあって該除湿手段により除湿された空気を加熱する加熱手段と、を具備する乾燥機において、
前記除湿手段は、
前記循環風路の一部を成し、湿った空気を下方から上方へと流通させる除湿風路と、
該除湿風路内に上方から除湿用の冷却水を供給する冷却水供給手段と、
前記除湿風路内を上昇する空気流が有する力を該除湿風路内を流下する前記冷却水に作用させることにより、該除湿風路の横断面内を通過する空気流に交差する方向に膜状に水を広げた除湿領域を形成する除湿領域形成手段と、
を有することを特徴としている。
Further, the second invention made to solve the above problems is a drying tub in which wet laundry to be dried is accommodated, and sucks air from the drying tub and sends it into the drying tub again. A dehumidifying means for cooling the moist air in the circulating air path that is sent from the drying tank to condense and liquefy water vapor, and in the circulating air path, than the dehumidifying means. In a drier comprising a heating means for heating the air dehumidified by the dehumidifying means on the downstream side,
The dehumidifying means includes
A dehumidifying air passage that forms part of the circulation air passage and circulates moist air from below to above;
Cooling water supply means for supplying cooling water for dehumidification from above into the dehumidifying air passage;
By applying the force of the air flow rising in the dehumidification air passage to the cooling water flowing down in the dehumidification air passage, the membrane is crossed in the direction crossing the air flow passing through the cross section of the dehumidification air passage Dehumidifying region forming means for forming a dehumidifying region in which water is spread in a shape;
It is characterized by having.

また上記課題を解決するために成された第3発明は、乾燥対象である濡れた洗濯物が内部に収容された乾燥槽と、該乾燥槽内から空気を吸い込んで再び該乾燥槽内に送り込むための循環風路と、該循環風路内にあって前記乾燥槽より送られて来る湿った空気を冷却して水蒸気を凝縮液化させる除湿手段と、前記循環風路内で前記除湿手段よりも下流側にあって該除湿手段により除湿された空気を加熱する加熱手段と、を具備する乾燥機において、
前記循環風路にあって前記除湿手段と前記加熱手段との間に、該風路内部と外部とを連通する通気孔を設け、乾燥運転時に該通気孔を通して外気を取り込みつつ空気を循環させるようにしたことを特徴としている。
Further, the third invention made to solve the above problems is a drying tub in which wet laundry to be dried is housed, and sucks air from the drying tub and sends it into the drying tub again. A dehumidifying means for cooling the moist air in the circulating air path that is sent from the drying tank to condense and liquefy water vapor, and in the circulating air path, than the dehumidifying means. In a drier comprising a heating means for heating the air dehumidified by the dehumidifying means on the downstream side,
A ventilation hole is provided in the circulation air passage between the dehumidifying means and the heating means so as to communicate the inside and the outside of the air passage, and air is circulated while taking in the outside air through the ventilation hole during the drying operation. It is characterized by that.

例えば第1乃至第3発明に係る乾燥機がドラム式洗濯乾燥機に適用される場合には、前記乾燥槽は洗濯運転の際に水が貯留される外槽であり、洗濯物はこの外槽内に回転自在に配設されたドラム内に収容される。   For example, when the dryer according to the first to third inventions is applied to a drum type laundry dryer, the drying tub is an outer tub in which water is stored during a washing operation, and the laundry is the outer tub. The drum is accommodated in a drum that is rotatably disposed therein.

第1乃至第3発明に係る乾燥機ではいずれも、乾燥運転時に、乾燥槽から循環風路の一部を構成する除湿風路内に湿った空気が流れ込み、その除湿風路内を下方から上方に向かう際に除湿手段で冷却されることにより水蒸気が凝縮液化(結露)して除去され、乾いた空気がその下流側の風路内に設けられた加熱手段で加熱された後に乾燥槽内へと送出される。なお、除湿風路は全体として上下方向に延伸するものであれば、垂直方向に延伸していても斜め方向に延伸していても構わない。   In any of the dryers according to the first to third inventions, during the drying operation, moist air flows from the drying tank into the dehumidifying air passage constituting a part of the circulation air passage, and the dehumidifying air passage is directed upward from below. The water vapor is condensed and condensed (condensed) to be removed by being cooled by the dehumidifying means when heading to the air, and the dried air is heated by the heating means provided in the air passage on the downstream side thereof and then into the drying tank Is sent out. In addition, as long as the dehumidification air path extends in the vertical direction as a whole, the dehumidification air path may extend in the vertical direction or in the oblique direction.

第1発明に係る乾燥機において、除湿手段にあっては、冷却水供給手段により上記除湿風路内へと供給された冷却水が該風路内を通過する空気と触れて熱交換することで除湿が行われる。例えば凸部はその上面が内方へ向かうに従い斜め下方に傾斜した傾斜面を有し、除湿風路の内壁面を伝い落ちた冷却水はこの凸部の傾斜面に沿って流下し、凸部の頂部付近から風路内に放出される。もし頂部付近で風路の横断面内の空気流の速度がほぼ均一であるとすると放出された水はそのまま落下するが、ここでは、空気流生起手段により、頂部から離れるほど空気流の速度が大きくなるように空気流の速度分布が生じている。そのため、凸部の頂部付近で傾斜面から離れた水に対し、頂部から離れるに従い上方向に吹き上げる力がより大きく作用し、それによって例えばちょうど膜ができるように水は凸部に対向する内壁面に向かって広がる。これにより、上昇して来る湿った空気はこの広がった水による除湿領域を横切る。その結果、空気に含まれる水蒸気は効率良く凝縮して液化する。なお、ここで言う水の「膜」とは必ずしも水が連続的に途切れなく続いたものとは限らず、また厚さも一定とは限らないものであるが、全体としては膜とみなすことができるものであり、以下の説明では便宜的に「膜」又は「水膜」と呼ぶ。   In the dryer according to the first invention, in the dehumidifying means, the cooling water supplied into the dehumidifying air passage by the cooling water supplying means comes into contact with the air passing through the air passage to exchange heat. Dehumidification is performed. For example, the convex part has an inclined surface inclined obliquely downward as its upper surface goes inward, and the cooling water that has flowed down along the inner wall surface of the dehumidifying air channel flows down along the inclined surface of the convex part, It is discharged from the vicinity of the top of the wind path. If the velocity of the air flow in the cross section of the air channel is almost uniform near the top, the discharged water will fall as it is, but here the air flow speed increases as the distance from the top increases by the air flow generating means. The velocity distribution of the air flow is generated so as to increase. Therefore, for the water away from the inclined surface in the vicinity of the top of the convex part, the force that blows up upwards as it moves away from the top part acts more, so that for example, the inner wall surface that faces the convex part so that a film can be formed. Spread towards. As a result, the rising damp air crosses the dehumidified area of the spread water. As a result, water vapor contained in the air is efficiently condensed and liquefied. In addition, the “film” of water here does not necessarily mean that water has continued continuously without interruption, and the thickness is not always constant, but can be regarded as a film as a whole. In the following description, for convenience, they are referred to as “membrane” or “water film”.

したがって第1発明に係る乾燥機によれば、高い除湿効率が達成されることで、同一水量の水を使用しても乾燥効率が高まり、同一程度の乾燥性能を得るために使用する水の総量を従来よりも減らすことができる。これにより、節水性を高めることができる。   Therefore, according to the dryer according to the first invention, the high dehumidification efficiency is achieved, so that the drying efficiency increases even when the same amount of water is used, and the total amount of water used to obtain the same level of drying performance. Can be reduced as compared with the prior art. Thereby, water saving can be improved.

また、乾燥槽から吐き出される湿った空気には糸屑等の微小な異物が混入していることがあるが、空気流が上記のように凸部付近に広がった水膜を横切るため、異物はここで捕捉され、冷却水や結露により生じた水によって押し流されて外部へ運び出される。したがって、こうした異物が加熱手段にまで達して焦げ付いたり、さらに再び乾燥槽内に戻って洗濯物に再付着したりすることを防止することもできる。   In addition, there are cases where fine foreign matter such as lint is mixed in the moist air discharged from the drying tank, but since the air flow crosses the water film spreading near the convex portion as described above, the foreign matter is It is trapped here and is washed away by cooling water or water generated by condensation, and is carried outside. Accordingly, it is possible to prevent such foreign matter from reaching the heating means and scorching, and returning to the drying tub again and reattaching to the laundry.

上記第1発明に係る乾燥機の一実施態様として、前記空気流生起手段は、湿った空気の流れを所定角度、例えば90°程度、曲げて前記除湿風路に送り込む前記循環風路の一部を成す屈曲部であるものとすることができる。この構成の場合、除湿風路にあっては上記屈曲部の内側、つまり屈曲部を介して除湿風路に空気を送り込む風路が設けられている側の内壁に上記凸部を形成しておくものとする。   As one embodiment of the dryer according to the first aspect of the invention, the air flow generating means is a part of the circulation air passage that bends the flow of wet air by a predetermined angle, for example, about 90 °, and sends it to the dehumidification air passage. It can be a bent part. In the case of this configuration, in the dehumidifying air passage, the convex portion is formed on the inner wall of the bent portion, that is, on the inner wall on the side where the air passage for sending air to the dehumidifying air passage is provided via the bent portion. Shall.

上記のように所定角度の屈曲部に沿って空気流が進行方向を変えると、その曲がりの内側では空気流の速度は低く、外側にいくほど速度が大きくなる。したがって、このような屈曲部を介して除湿風路に空気を送り込み、その除湿風路にあって屈曲部の内側になる側の内壁に凸部を形成しておけば、簡単な構成で以て上述したような、例えば膜状に水が広がった除湿領域を形成することができる。   As described above, when the air flow changes its traveling direction along the bent portion having a predetermined angle, the speed of the air flow is low on the inside of the bend, and the speed increases on the outside. Therefore, if air is sent to the dehumidifying air passage through such a bent portion and a convex portion is formed on the inner wall of the dehumidifying air passage on the inner side of the bent portion, the structure can be simplified. As described above, for example, a dehumidifying region in which water spreads in a film shape can be formed.

また、前記除湿風路の横断面開口は細長い略矩形状であって、前記凸部は該横断面開口の短手方向に該風路の内壁が内方に突出したものである構成とするとよい。   The cross-sectional opening of the dehumidifying air passage may be an elongated, substantially rectangular shape, and the convex portion may be configured such that the inner wall of the air passage projects inward in the short direction of the cross-sectional opening. .

この構成によれば、凸部の頂部とそれに対向する内壁面との距離が短く、その面近くまで水膜を広げることが容易である。その結果、凸部付近を通過する空気流の中で水膜を横切る割合が高くなり、除湿効率を高めることができる。   According to this configuration, the distance between the top of the convex portion and the inner wall surface facing it is short, and it is easy to spread the water film to the vicinity of the surface. As a result, the ratio of crossing the water film in the air flow passing near the convex portion is increased, and the dehumidification efficiency can be increased.

また第1発明に係る乾燥機においては、上述したように凸部の頂部付近で例えば膜状に広がる水の広がりが小さ過ぎると、除湿効率が上がらない。一方、水の広がりが大き過ぎて除湿風路の横断面開口全体をほぼ閉塞するまでになってしまうと、空気流に対する流れ抵抗となって風量が落ち、乾燥効率を低下させるおそれがある。こうしたことから、適度に水膜が広がるように条件を設定することが望ましい。空気流の流れの状態を表す指標値としてレイノルズ数が知られており、十分な除湿効果が得られるような条件をこの指標値を用いて定めると、本発明に係る乾燥機では、レイノルズ数が1.5×104〜4.0×104程度となるように前記凸部の位置の風路断面積及び風量を設定するとよい。ここで、風路断面積は例えば凸部の突出高さに依存し、風量は例えば循環風路内に空気を循環させるための送風用ブロアの回転速度に依存する。 Moreover, in the dryer which concerns on 1st invention, if the breadth of the water which spreads in the shape of a film | membrane in the vicinity of the top part of a convex part as mentioned above is too small, a dehumidification efficiency will not rise. On the other hand, if the spread of water is so large that the entire cross-sectional opening of the dehumidifying air passage is almost blocked, there is a risk that the flow rate is reduced against the air flow and the air volume is lowered, thereby reducing the drying efficiency. For these reasons, it is desirable to set conditions so that the water film spreads appropriately. The Reynolds number is known as an index value representing the flow state of the air flow, and when a condition for obtaining a sufficient dehumidifying effect is determined using this index value, the dryer according to the present invention has a Reynolds number of It is preferable to set the airway cross-sectional area and the air volume at the position of the projection so as to be about 1.5 × 10 4 to 4.0 × 10 4 . Here, the air passage cross-sectional area depends on, for example, the protrusion height of the convex portion, and the air volume depends on, for example, the rotational speed of the blower blower for circulating air in the circulation air passage.

また、前記凸部はその縦断面が、鉛直線を底辺とし頂部の角度が80〜100°程度である略二等辺三角形状、又はその略二等辺三角形の頂部を含む一部を切り出した形状とするとよい。   In addition, the vertical section of the convex portion has a substantially isosceles triangle shape having a vertical line as a base and an apex angle of about 80 to 100 °, or a shape obtained by cutting a part including the top portion of the approximately isosceles triangle. Good.

このように凸部の形状を適切に定めることにより、流下して来る冷却水やその上方で既に凝縮液化により生成された水を、除湿風路内に適度に広げて水膜を形成し、除湿効率を高めることができる。   By appropriately defining the shape of the projections in this way, the cooling water flowing down and the water already generated by condensation liquefaction above it are appropriately spread in the dehumidifying air passage to form a water film, and dehumidifying Efficiency can be increased.

また第1発明に係る乾燥機において、好ましくは、前記除湿風路内にあって前記凸部の上方には該除湿風路の内壁から内方に突出する上側凸部が形成され、前記冷却水供給手段により供給された冷却水が前記上側凸部に当たり跳ね返ってその上部空間に上部除湿領域を形成して成るものとするとよい。   In the dryer according to the first aspect of the present invention, preferably, an upper convex portion that protrudes inward from an inner wall of the dehumidifying air passage is formed in the dehumidifying air passage and above the convex portion, and the cooling water It is preferable that the cooling water supplied by the supply means bounces back on the upper convex portion and forms an upper dehumidification region in the upper space.

この構成では、上方から落下した水の少なくとも一部は上側凸部に当たって細かい水滴に***して跳ね上がる。また、空気流は下方から上方向に向かって進行するから、***した水滴は空気流により吹き上げられ、細かい水滴が巻き上げられて集まった状態の上部除湿領域が形成される。この上部除湿領域では冷却水の実効的な表面積が広くなるとともに水滴の滞留時間も長いので、冷却水と湿った空気との熱交換が良好に行われる。そして、ここで一旦除湿に使用された冷却水と凝縮液化した水とが一緒になって上記凸部に流下し、そこで再利用されて湿った空気を除湿するのに寄与する。したがって、除湿効率が一層高まり、乾燥運転時の冷却水の使用をさらに減らすことができる。   In this configuration, at least a part of the water dropped from above hits the upper convex portion and breaks up into fine water droplets. Further, since the air flow proceeds upward from below, the split water droplets are blown up by the air flow to form an upper dehumidification region in which fine water droplets are rolled up and gathered. In this upper dehumidification region, the effective surface area of the cooling water is increased and the residence time of the water droplets is long, so that heat exchange between the cooling water and the moist air is performed well. And here, the cooling water once used for dehumidification and the condensed liquid water flow down to the convex part, and are reused there to contribute to dehumidification of moist air. Therefore, the dehumidification efficiency is further increased, and the use of cooling water during the drying operation can be further reduced.

第2発明に係る乾燥機においては、除湿領域形成手段が、除湿風路内を上昇する空気流が有する力を該除湿風路内を流下する冷却水に作用させることにより、該除湿風路の横断面内を通過する空気流に交差する方向に膜状に水が広がった除湿領域を形成する。そして、湿った空気流がこの除湿領域を横切る際に該空気中の水蒸気は冷却されて凝縮液化する。   In the dryer according to the second invention, the dehumidifying region forming means causes the force of the air flow rising in the dehumidifying air path to act on the cooling water flowing down in the dehumidifying air path, thereby A dehumidifying region is formed in which water spreads in a film shape in a direction crossing the air flow passing through the cross section. And when the damp air flow crosses the dehumidifying region, the water vapor in the air is cooled and condensed into liquid.

したがってこの第2発明に係る乾燥機によっても第1発明と同様に、高い除湿効率が達成されることで、同一水量の水を使用しても乾燥効率が高まり、同一程度の乾燥性能を得るために使用する水の総量を従来よりも減らすことができる。これにより、節水性を高めることができる。また、乾燥槽から吐き出される湿った空気中に混在している糸屑等の微小な異物を水膜で捕捉することにより、こうした異物が加熱手段にまで達して焦げ付いたり、再び乾燥槽内に戻って洗濯物に再付着したりすることを防止することもできる。   Therefore, the dryer according to the second invention also achieves high dehumidification efficiency as in the first invention, thereby increasing the drying efficiency even when the same amount of water is used, and obtaining the same level of drying performance. Can reduce the total amount of water used. Thereby, water saving can be improved. In addition, by capturing fine foreign matter such as lint mixed in the moist air discharged from the drying tank with a water film, the foreign matter reaches the heating means and burns, or returns to the drying tank again. It is also possible to prevent reattachment to the laundry.

なお、第2発明に係る乾燥機において、除湿領域形成手段の具体的な態様としては、第1発明に係る乾燥機と同様に、前記冷却水を斜め下方向に流下させて前記除湿風路内に放出する傾斜面を有して該除湿風路の内壁面から内方に突出する凸部と、前記凸部の下方において該除湿風路の横断面内で前記凸部の頂部から離れるほど空気流の速度が大きくなるように空気流の速度分布を生じさせる空気流生起手段と、から成るものとすることができる。   In the dryer according to the second invention, as a specific mode of the dehumidifying region forming means, the cooling water is allowed to flow obliquely downward in the dehumidifying air passage as in the dryer according to the first invention. A convex portion projecting inward from the inner wall surface of the dehumidifying air passage and having an inclined surface that is discharged to the inside of the dehumidifying air passage so that the air moves away from the top of the convex portion in the cross section of the dehumidifying air passage below the convex portion. And air flow generating means for generating a velocity distribution of the air flow so that the flow velocity is increased.

第3発明に係る乾燥機では、乾燥槽及び循環風路内を空気が循環する際に通気孔を通して少量の外気が取り込まれる。除湿手段により除湿された後の空気と比べても、通常、通過孔から取り込まれる外気は低温で且つ湿度が低い。そのため、加熱手段で加熱された後の空気の温度は通気孔が無い場合に比べて少し下がるものの、洗濯物との熱交換の効率はそれほど変わらず、一方、空気の温度が下がった分だけ除湿手段での除湿効率は高まる。また、循環風路内に外気が取り込まれたことにより、代わりに湿った空気の一部が乾燥槽や循環風路の密閉性が低い部分から外部に漏れ出す。それにより、乾燥槽及び循環風路内の湿度が除湿以外の作用で下がるため、乾燥効率は向上する。こうしたことから、同程度の乾燥性能を達成するために使用する冷却水の水量が従来よりも少なくて済む。   In the dryer according to the third aspect of the invention, a small amount of outside air is taken in through the ventilation holes when the air circulates in the drying tank and the circulation air passage. Even when compared with the air after being dehumidified by the dehumidifying means, the outside air taken in from the passage holes is usually low in temperature and low in humidity. Therefore, although the temperature of the air after being heated by the heating means is slightly lower than when there is no vent hole, the efficiency of heat exchange with the laundry does not change so much, while the dehumidification is as much as the temperature of the air has decreased. The dehumidifying efficiency of the means is increased. In addition, since outside air is taken into the circulation air passage, part of the moist air leaks out from a portion of the drying tank or the circulation air passage where the sealing property is low. Thereby, since the humidity in a drying tank and a circulation air path falls by actions other than dehumidification, drying efficiency improves. For this reason, the amount of cooling water used to achieve the same level of drying performance is smaller than in the past.

具体的な一態様として、前記循環風路にあって前記除湿手段と前記加熱手段との間に送風用ブロアが配置され、前記除湿手段は該循環風路内に除湿用冷却水を供給する供給口を含み、前記通気孔は前記ブロアと前記供給口との間に設けられている構成とすることができる。   As a specific embodiment, a blowing blower is disposed between the dehumidifying means and the heating means in the circulating air passage, and the dehumidifying means supplies the dehumidifying cooling water into the circulating air passage. A vent may be included, and the vent hole may be provided between the blower and the supply port.

この構成によれば、通気孔の位置まで多量の冷却水が到達することはないので、通気孔から冷却水が漏れ出すことを防止することができる。   According to this configuration, since a large amount of cooling water does not reach the position of the vent hole, it is possible to prevent the cooling water from leaking from the vent hole.

なお、通気孔の開口面積が大きいほど、乾燥槽及び循環風路内を循環する空気の温度、湿度に対する外気の温度、湿度の影響が大きくなる。そのため、開口面積を大きくし過ぎると外気の温度が高く且つ高湿度であるような場合に乾燥性能が低下する。他方、開口面積が小さ過ぎると、上述したように通気孔を設けたことの効果が殆ど得られない。こうしたことから、通気孔の孔径を3〜10mmφとするか又はそれに相当する開口面積を有する1乃至複数の開口から成るものとするとよい。   Note that the larger the opening area of the vent hole, the greater the influence of the temperature and humidity of the outside air on the temperature and humidity of the air circulating in the drying tank and the circulation air passage. For this reason, if the opening area is too large, the drying performance decreases when the temperature of the outside air is high and the humidity is high. On the other hand, if the opening area is too small, the effect of providing the vent hole as described above is hardly obtained. For this reason, it is preferable that the diameter of the air hole is 3 to 10 mmφ or one or a plurality of openings having an opening area corresponding to it.

以下、本発明に係る乾燥機の一実施例であるドラム式洗濯乾燥機について、図面を参照して説明する。   Hereinafter, a drum type washing and drying machine which is an embodiment of a drying machine according to the present invention will be described with reference to the drawings.

まず図1に基づき、本実施例によるドラム式洗濯乾燥機の外観上の構成について説明する。図1は本実施例によるドラム式洗濯乾燥機の外観斜視図である。本実施例のドラム式洗濯乾燥機の外形を成す外箱1は、左右両側面と後面とが一体に形成され、前面、下面及び上面が開放された胴体部1aと、胴体部1aの上面に取り付けられた上面板1bと、胴体部1aの前面を着脱可能に覆う前面板1cと、胴体部1aが載置される台座部1dとから成る。胴体部1aの上面は後部から前端に掛けて前下がり湾曲形状に形成されており、上面板1bも同様に前下がり湾曲形状に形成されている。   First, based on FIG. 1, the structure on the external appearance of the drum type washing-drying machine by a present Example is demonstrated. FIG. 1 is an external perspective view of a drum type washing and drying machine according to the present embodiment. The outer case 1 forming the outer shape of the drum type washing and drying machine of the present embodiment has a body portion 1a in which the left and right side surfaces and the rear surface are integrally formed, the front surface, the lower surface and the upper surface are opened, and the upper surface of the body portion 1a. It consists of a top plate 1b attached, a front plate 1c that detachably covers the front surface of the body part 1a, and a pedestal part 1d on which the body part 1a is placed. The upper surface of the body portion 1a is formed in a front-lowering curved shape from the rear portion to the front end, and the upper surface plate 1b is similarly formed in a front-lowering curved shape.

上面板1bの前端部から後部に掛けて左右方向の中央には、前後に長い大きな洗濯物投入口2が形成され、この洗濯物投入口2を開閉するために、前後方向にスライド移動自在である上蓋3が設けられている。上蓋3が図1に示すように閉鎖された状態では、使用者が右側方に配置された蓋開ボタン4を押すと、上蓋3が自動的に後方にスライド移動して洗濯物投入口2が全開する。開放した上蓋3を閉じる際には、使用者は上蓋3の前端部に設けられた把手3aに指を掛けて手前に引き、上蓋3を前方にスライド移動させる。上蓋3が完全に閉鎖されると、図示しないラッチ機構によりラッチが掛かって使用者が指を話しても上蓋3は閉鎖状態を維持する。   A large laundry input port 2 which is long in the front-rear direction is formed at the center in the left-right direction from the front end portion to the rear portion of the upper surface plate 1b, and is slidable in the front-rear direction to open and close the laundry input port 2. A certain upper lid 3 is provided. In the state where the upper lid 3 is closed as shown in FIG. 1, when the user presses the lid opening button 4 arranged on the right side, the upper lid 3 automatically slides backward, and the laundry input port 2 is opened. Fully open. When closing the opened upper lid 3, the user puts his / her finger on the handle 3 a provided at the front end of the upper lid 3 and pulls it forward, and slides the upper lid 3 forward. When the upper lid 3 is completely closed, the upper lid 3 is kept closed even when the user speaks his / her finger by being latched by a latch mechanism (not shown).

上蓋3の右側には、前後方向に延伸して複数の操作キーや表示器が設けられた操作パネル5が配置され、上蓋3を挟んで操作パネル5と反対側の左方後方には、横開き式の蓋体で覆われた洗剤容器6が設けられている。さらに、洗剤容器6の後方には外部の給水栓等にホースを介して接続される水道水給水口7が設けられ、操作パネル5の後方には別のホースを介して風呂の浴槽内等に接続される風呂水給水口8が設けられている。   On the right side of the upper lid 3, there is disposed an operation panel 5 that extends in the front-rear direction and is provided with a plurality of operation keys and indicators, and on the left rear side opposite to the operation panel 5 across the upper lid 3, A detergent container 6 covered with an open lid is provided. Further, a tap water supply port 7 connected to an external water faucet or the like is provided behind the detergent container 6 via a hose, and the operation panel 5 is provided behind the operation panel 5 in a bath tub or the like via another hose. A connected bath water inlet 8 is provided.

次に図2及び図3に基づき、本ドラム式洗濯乾燥機の内部構成について説明する。図2は内部構造を示す正面縦断面図、図3は内部構造を示す右側面縦断面図である。   Next, based on FIG.2 and FIG.3, the internal structure of this drum type washing-drying machine is demonstrated. 2 is a front longitudinal sectional view showing the internal structure, and FIG. 3 is a right side longitudinal sectional view showing the internal structure.

外箱1の内部にあって台座部1dの上には、周面が略円筒形状で両端面がほぼ閉塞された外槽11(本発明における乾燥槽に相当)が、胴体部1aの左右側面にそれぞれ端面が対向する状態で、左右両側上方から吊下げ支持する図示しない二本のばねと、前後方向に外槽11の下部を支え受ける2本のダンパ12とにより適度に揺動自在に保持されている。外槽11の内部には、多数の通水穴14aが穿孔された、周面が略円筒形状で両端面がほぼ閉塞された横型のドラム14が、左右方向に延伸する水平軸線Cを中心に回転自在に設けられている。このドラム14の内周面には、周方向に互いに等間隔(約120°)で3個のバッフル14bが取り付けられている。   An outer tub 11 (corresponding to a drying tub in the present invention) having a substantially cylindrical shape and substantially closed at both end surfaces is provided on the left and right side surfaces of the body portion 1a. With two end springs (not shown) suspended and supported from above both left and right sides, and two dampers 12 that support the lower portion of the outer tub 11 in the front-rear direction, the two end surfaces are opposed to each other so as to be moderately swingable. Has been. Inside the outer tub 11, a horizontal drum 14 in which a large number of water passage holes 14a are perforated and whose peripheral surface is substantially cylindrical and whose both end surfaces are substantially closed is centered on a horizontal axis C extending in the left-right direction. It is provided rotatably. Three baffles 14 b are attached to the inner peripheral surface of the drum 14 at equal intervals (about 120 °) in the circumferential direction.

ドラム14の左端面中央に固着された主軸15は、外槽11の左端面に固定された第1軸受ケース17に保持される軸受18により支承される。他方、ドラム14の右端面中央に固着された補助軸16は、外槽11の右端面に固定された第2軸受ケース19に保持される軸受20により支承される。この主軸15及び補助軸16により、ドラム14の回転軸である水平軸線Cが形成される。   The main shaft 15 fixed to the center of the left end surface of the drum 14 is supported by a bearing 18 held by a first bearing case 17 fixed to the left end surface of the outer tub 11. On the other hand, the auxiliary shaft 16 fixed to the center of the right end surface of the drum 14 is supported by a bearing 20 held by a second bearing case 19 fixed to the right end surface of the outer tub 11. The main shaft 15 and the auxiliary shaft 16 form a horizontal axis C that is a rotation shaft of the drum 14.

外槽11の左端面から左方へと突出した主軸15の先端には、アウタロータ型の直流ブラシレスモータであるドラムモータ21の円盤状のロータ21bが固定され、一方、モータ台を兼ねる第1軸受ケース17にはドラムモータ21のステータ21aが固定され、ステータ21aとロータ21bの磁石とは対面している。図示しない制御回路からステータ21aに駆動電流が供給されるとそれに応じてロータ21bが回転し、主軸15を介してロータ21bと同一の回転速度で以てドラム14が回転駆動される。   A disc-shaped rotor 21b of a drum motor 21 which is an outer rotor type DC brushless motor is fixed to the tip of the main shaft 15 protruding leftward from the left end surface of the outer tub 11, and on the other hand, a first bearing also serving as a motor base A stator 21a of a drum motor 21 is fixed to the case 17, and the stator 21a and the magnet of the rotor 21b face each other. When a drive current is supplied to the stator 21a from a control circuit (not shown), the rotor 21b rotates accordingly, and the drum 14 is rotationally driven through the main shaft 15 at the same rotational speed as the rotor 21b.

外槽11の周面の上部から斜め前方にかけて、上面板1bの洗濯物投入口2と一致する位置に外槽開口11gが形成され、外槽開口11gを開閉するために、左右方向に水平に延在する軸を中心に後方に起立自在の内蓋23が設けられている。また、ドラム14の周面にもドラム開口14cが形成され、このドラム開口14cを開閉するために、前後に観音開き構造を有する2枚の蓋体から成るドラム蓋25が設けられている。   An outer tub opening 11g is formed at a position coinciding with the laundry input port 2 of the upper surface plate 1b from the upper part of the outer circumferential surface of the outer tub 11 to the front, and horizontally in order to open and close the outer tub opening 11g. An inner lid 23 is provided that can stand rearward about the extending shaft. A drum opening 14c is also formed on the peripheral surface of the drum 14, and a drum cover 25 composed of two lids having a double door structure is provided on the front and rear in order to open and close the drum opening 14c.

ドラム14は外槽11内で回転可能であるから、少なくとも使用者がドラム14内に洗濯物を出し入れする際には、ドラム開口14cと外槽開口11gとが径方向に一致した位置でドラム14を停止させ、その状態を維持する必要がある。そこで、ドラム14の位置を固定するために、外槽11左端面にあってステータ21aの下方にはドラムロック装置26が設けられ、該装置26から上方に突出する係合ピンとドラムモータ21のロータ21bに形成されている係合凹部とが噛み合うことによって、ドラム14が停止位置でロックされる。この状態において、使用者は上蓋3、内蓋23及びドラム蓋25を開放し、ドラム14内を開放させて洗濯物を出し入れすることができる。   Since the drum 14 is rotatable in the outer tub 11, at least when the user puts the laundry in and out of the drum 14, the drum 14 is located at a position where the drum opening 14 c and the outer tub opening 11 g coincide with each other in the radial direction. Must be stopped and maintained in that state. Therefore, in order to fix the position of the drum 14, a drum lock device 26 is provided on the left end surface of the outer tub 11 and below the stator 21 a, and an engagement pin protruding upward from the device 26 and a rotor of the drum motor 21. The drum 14 is locked at the stop position by meshing with the engaging recess formed in 21b. In this state, the user can open the upper lid 3, the inner lid 23 and the drum lid 25, open the inside of the drum 14, and put in and out the laundry.

外槽11の後部の中央よりやや上には給水管27が接続され、この給水管27は洗剤容器6に接続されている。図示しない給水バルブを開放すると、水道水給水口7に供給されている水道水が洗剤容器6を通り、給水管27を経て外槽11内に供給される。このとき、洗剤容器6内の所定位置に洗剤が収容されていれば、該洗剤は水とともに外槽11内に投入される。   A water supply pipe 27 is connected slightly above the center of the rear part of the outer tub 11, and this water supply pipe 27 is connected to the detergent container 6. When a water supply valve (not shown) is opened, tap water supplied to the tap water supply port 7 passes through the detergent container 6 and is supplied into the outer tub 11 through the water supply pipe 27. At this time, if the detergent is stored in a predetermined position in the detergent container 6, the detergent is put into the outer tub 11 together with water.

外槽11の底部には排水口28が設けられ、排水口28は排水バルブ29を介し、図示しない排水ホースを通して外部の排水溝へと接続されている。外槽11内に水を貯留する際には排水バルブ29は閉鎖されており、排水バルブ29が開放されると、外槽11内の水は排水口28及び排水ホースを経て機外へと排出される。   A drain outlet 28 is provided at the bottom of the outer tub 11, and the drain outlet 28 is connected to an external drain groove through a drain hose (not shown) via a drain valve 29. When water is stored in the outer tub 11, the drain valve 29 is closed. When the drain valve 29 is opened, the water in the outer tub 11 is discharged to the outside through the drain port 28 and the drain hose. Is done.

ドラム14を挟んでドラムモータ21と反対側の、第2軸受ケース19周囲の外槽11右端面と胴体部1aの右側面との間には、乾燥運転時に加熱した乾燥風を外槽11の内部に循環供給するための循環風路30が形成されている。次に、この循環風路30について、図4〜図10を参照して詳述する。   Between the right end surface of the outer tub 11 around the second bearing case 19 and the right side surface of the body portion 1a on the opposite side of the drum motor 21 across the drum 14, the drying air heated during the drying operation is supplied to the outer tub 11. A circulation air passage 30 for circulatingly supplying the inside is formed. Next, the circulation air passage 30 will be described in detail with reference to FIGS.

図4は循環風路を中心に描出した正面縦断面図、図5は内部構造を示す右側面図、図6は循環風路を中心に描出した上面横断面図、図7は循環風路の一部となる除湿風路の右側面外観図、図8は図7に示した除湿風路の正面外観図、図9は図7中のB−B’矢視線断面図、図10は図7中のA−A’矢視線断面図である。   4 is a front longitudinal sectional view centered on the circulation air passage, FIG. 5 is a right side view showing the internal structure, FIG. 6 is a top cross-sectional view centered on the circulation air passage, and FIG. FIG. 8 is a front external view of the dehumidifying air passage shown in FIG. 7, FIG. 9 is a cross-sectional view taken along line BB ′ in FIG. 7, and FIG. It is an AA 'arrow line sectional view in the inside.

外槽11の胴部部材11aは左側端面がほぼ閉塞し、右側端面が開放した合成樹脂の一体成型品であって、水平軸線C方向の略中央下部に外槽11内側に連通する排気出口11bを有し、該排気出口11bから水平軸線C方向に延伸して右側端面まで至る筒状の排気風路11cが一体に形成されている。この排気出口11bが乾燥運転時に外槽11から水蒸気を含む湿った空気が排出される出口になり、排気風路11cは循環風路30の一部となる。   The body member 11a of the outer tub 11 is an integrally molded product of a synthetic resin whose left end face is substantially closed and whose right end face is open, and an exhaust outlet 11b communicating with the inner side of the outer tub 11 at a substantially central lower portion in the horizontal axis C direction. A cylindrical exhaust air passage 11c extending from the exhaust outlet 11b in the horizontal axis C direction to the right end surface is integrally formed. This exhaust outlet 11 b becomes an outlet through which wet air containing water vapor is discharged from the outer tub 11 during the drying operation, and the exhaust air passage 11 c becomes a part of the circulation air passage 30.

胴部部材11aの右側の開放端面には、この端面をほぼ閉塞する端面部材11dが装着される。その端面部材11dにあって上記排気風路11cの開放端面に対応する箇所には円形状の開口11eが形成されている。端面部材11dには循環風路30の一部を構成する合成樹脂製の風路部材31が後述するように固定される。   An end face member 11d that substantially closes the end face is attached to the open end face on the right side of the body member 11a. A circular opening 11e is formed at a location corresponding to the open end face of the exhaust air passage 11c in the end face member 11d. A synthetic resin air passage member 31 constituting a part of the circulation air passage 30 is fixed to the end surface member 11d as described later.

図7及び図8に示すように、風路部材31は、下端に側方に向けて略円形状に開放する開口32を有し、ほぼ垂直方向に延伸する扁平筒状の側部垂直風路(本発明における除湿風路に相当)33と、該側部垂直風路33の上部に連通してほぼ水平から斜め上方に屈曲しつつ延伸する扁平筒状の後部水平風路34とが一体化された形状を有する。側部垂直風路33と後部水平風路34との接続部よりも低い位置には冷却水供給口(本発明における冷却水供給手段に相当)35が設けられ、ここに図示しない冷却水管が接続される。この冷却水管の上流に設けられた冷却水バルブが開放されると、該冷却水管を通して冷却水(水道水)が冷却水供給口35から側部垂直風路33内へと流れ込む。これにより、側部垂直風路33は水蒸気を含んだ空気流を冷却して水蒸気を凝縮液化させるための熱交換部(除湿手段)として機能する。   As shown in FIGS. 7 and 8, the air passage member 31 has a flat cylindrical side vertical air passage that has an opening 32 that opens in a substantially circular shape toward the side at the lower end and extends in a substantially vertical direction. (Equivalent to the dehumidifying air passage in the present invention) 33 and a flat cylindrical rear horizontal air passage 34 that communicates with the upper portion of the side vertical air passage 33 and extends while being bent obliquely upward from substantially horizontal. Has a shape. A cooling water supply port (corresponding to the cooling water supply means in the present invention) 35 is provided at a position lower than the connecting portion between the side vertical air passage 33 and the rear horizontal air passage 34, and a cooling water pipe (not shown) is connected thereto. Is done. When a cooling water valve provided upstream of the cooling water pipe is opened, cooling water (tap water) flows from the cooling water supply port 35 into the side vertical air passage 33 through the cooling water pipe. Thus, the side vertical air passage 33 functions as a heat exchange part (dehumidifying means) for cooling the air flow containing water vapor to condense and liquefy the water vapor.

風路部材31は、その下端の開口32が外槽11の開口11eに嵌合するように取り付けられ、側部垂直風路33は外槽11の右端面と胴体部1aの右側面との間の空隙に配設され、後部水平風路34は外槽11の胴部の後方側と胴体部1aの後面との間の空隙に配設される。   The air passage member 31 is attached so that the opening 32 at the lower end thereof fits into the opening 11e of the outer tub 11, and the side vertical air passage 33 is between the right end surface of the outer tub 11 and the right side surface of the body portion 1a. The rear horizontal air passage 34 is disposed in a space between the rear side of the trunk portion of the outer tub 11 and the rear surface of the trunk portion 1a.

後部水平風路34の出口端36は前方に向いて開放しており、ブロア41が内装されたブロア室40の後方に接続される。ブロア室40の前方、つまりブロア室40を挟んで胴体部1aの後面と反対側で且つ外槽11の上部後方には、モータ軸に沿った軸線が水平軸線Cと略直交し且つ水平に延伸するようにブロアモータ42が配置され、ブロアモータ42のモータ軸とブロア41とは直結されている。また、後部水平風路34の出口端36の後方、即ち、循環風路30内であって冷却水供給口35とブロア41との間に、小径の通気孔37が穿設されている。ブロア41が回転駆動される際に、この通気孔37は循環風路30の外側の空気の採り入れ口として機能するが、詳細は後述する。   The outlet end 36 of the rear horizontal air passage 34 is open toward the front, and is connected to the rear of the blower chamber 40 in which the blower 41 is installed. The axis along the motor axis is substantially perpendicular to the horizontal axis C and extends horizontally in front of the blower chamber 40, that is, on the opposite side of the rear surface of the body portion 1 a across the blower chamber 40 and at the upper rear of the outer tub 11. The blower motor 42 is arranged so that the motor shaft of the blower motor 42 and the blower 41 are directly connected. A small-diameter air hole 37 is formed behind the outlet end 36 of the rear horizontal air passage 34, that is, in the circulation air passage 30 and between the cooling water supply port 35 and the blower 41. When the blower 41 is driven to rotate, the vent 37 functions as an air intake port outside the circulation air passage 30, which will be described in detail later.

ブロア室40の右側方には、ほぼ水平に延伸し外槽11の右端面外側においてほぼ直角に前方に屈曲し、更に補助軸16の上方で下方向にほぼ直角に屈曲した、循環風路30の一部を構成するヒータハウジング43が接続されている。ヒータハウジング43の出口端は、第2軸受ケース19に形成された開口19aに被さるように設けられている。このヒータハウジング43内には、加熱手段としてシーズ線であるヒータ44が配設されており、該ハウジング43内を通過する空気を加熱する。   On the right side of the blower chamber 40, the circulation air passage 30 extends substantially horizontally, bends forward at a substantially right angle outside the right end surface of the outer tub 11, and bends at a substantially right angle downward above the auxiliary shaft 16. The heater housing 43 which comprises a part of is connected. The outlet end of the heater housing 43 is provided so as to cover the opening 19 a formed in the second bearing case 19. A heater 44 that is a sheathed wire is disposed in the heater housing 43 as a heating means, and heats the air that passes through the housing 43.

外槽11の端面部材11dにあって第2軸受ケース19で覆われる部分には開口11fが設けられており、第2軸受ケース19の開口19aと外槽11の開口11fとを介して、ヒータハウジング43と外槽11内部とは連通している。したがって、この開口11fが外槽11内への熱風供給口として機能する。   An opening 11f is provided in the end surface member 11d of the outer tub 11 and covered with the second bearing case 19, and a heater is provided via the opening 19a of the second bearing case 19 and the opening 11f of the outer tub 11. The housing 43 communicates with the inside of the outer tub 11. Therefore, the opening 11 f functions as a hot air supply port into the outer tub 11.

ドラム14の右端面の中央部には。外槽11の開口11fと対向するように吹出口14dが形成されている。吹出口14dは補助軸16の周囲に放射状に複数形成されている。また、開口11fと吹出口14dの間は、外槽11側に設けた複数の環状リブとドラム14側に設けた複数の環状リブとによるラビリンス結合のシール部により気密性が高められている。   At the center of the right end surface of the drum 14. An air outlet 14d is formed so as to face the opening 11f of the outer tub 11. A plurality of air outlets 14 d are formed radially around the auxiliary shaft 16. Further, between the opening 11f and the air outlet 14d, airtightness is enhanced by a labyrinth-bonded seal portion formed by a plurality of annular ribs provided on the outer tub 11 side and a plurality of annular ribs provided on the drum 14 side.

上記のように構成された循環風路30において、ブロアモータ42によりブロア41が回転駆動されると、ブロア41は後方側から吸い込んだ空気を側方に向けて吐き出す。そのため、ブロア室40からヒータハウジング43へと向かう空気流が形成され、ヒータハウジング43を通過する間にヒータ44により加熱された高温の空気流(熱風)が、外槽11への熱風供給口である開口11fを通して外槽11内へと送り込まれる。さらには、吹出口14dを通してドラム14内へと熱風が流れ込む。   In the circulation air passage 30 configured as described above, when the blower 41 is rotationally driven by the blower motor 42, the blower 41 discharges air sucked from the rear side toward the side. Therefore, an air flow from the blower chamber 40 toward the heater housing 43 is formed, and a high-temperature air flow (hot air) heated by the heater 44 while passing through the heater housing 43 is generated at the hot air supply port to the outer tub 11. It is fed into the outer tub 11 through a certain opening 11f. Furthermore, hot air flows into the drum 14 through the air outlet 14d.

ドラム14内に濡れた洗濯物が収容されている場合、ドラム14内に入った熱風は洗濯物同士の隙間や洗濯物の繊維の隙間を通過し、その際に洗濯物から水分を奪う。そして、湿り気を十分に含んだ空気は主として通水穴14aを通ってドラム14の外側へと出て、ドラム14と外槽11との隙間を通って排気出口11bへと向かう。   When wet laundry is stored in the drum 14, the hot air that has entered the drum 14 passes through the gap between the laundry and the gap between the fibers of the laundry, and at that time, deprives the laundry of moisture. Then, the air sufficiently containing the moisture is mainly discharged to the outside of the drum 14 through the water passage hole 14a, and is directed to the exhaust outlet 11b through the gap between the drum 14 and the outer tub 11.

排気出口11bから外槽11の外側へ取り出された、湿り気を多量に含む空気は、水平に延伸する排気風路11cを通って側部垂直風路33の入口である開口32へと達し、側部垂直風路33内を上昇する。上述したように側部垂直風路33内には冷却水が供給されており、空気流の進行方向と対向する方向に冷却水は流れて来るため、湿った空気は冷却水との熱交換により急激に冷却される。その結果、空気に含まれる水蒸気は凝縮して水となり、側部垂直風路33の内壁面に結露し、それを伝って流下する。したがって、側部垂直風路33内の熱交換部を通過するに伴い空気は除湿され、乾いた空気となって後部水平風路34を通りブロア室40へと戻る。そして、ブロア41により再びヒータハウジング43へと送られ、ヒータ44で再加熱される。   The air containing a large amount of moist air taken out from the exhaust outlet 11b to the outside of the outer tub 11 reaches the opening 32 which is the inlet of the side vertical air passage 33 through the exhaust air passage 11c extending horizontally. Ascend in the vertical air passage 33. As described above, the cooling water is supplied into the side vertical air passage 33, and the cooling water flows in a direction opposite to the traveling direction of the air flow. Therefore, the moist air is exchanged by heat exchange with the cooling water. It is cooled rapidly. As a result, the water vapor contained in the air condenses to become water, condenses on the inner wall surface of the side vertical air passage 33, and flows down along this. Therefore, the air is dehumidified as it passes through the heat exchanging section in the side vertical air passage 33, becomes dry air, returns to the blower chamber 40 through the rear horizontal air passage 34. Then, it is sent again to the heater housing 43 by the blower 41 and reheated by the heater 44.

側部垂直風路33の内壁面に結露した水は冷却水とともに、空気流とは反対に開口11eから排気風路11c内へと流れ込み、排気風路11c底部の緩やかな傾斜に沿って外槽11内へと流入する。そして、最終的には排水口28を経て機外へと排出される。また、側部垂直風路33内を流下した水の一部は、外槽11の胴部部材11aに端面部材11dを装着したときの隙間に形成される排水孔からも外槽11へ流れ出る。   The water condensed on the inner wall surface of the side vertical air passage 33 flows into the exhaust air passage 11c through the opening 11e opposite to the air flow along with the cooling water, and along the gentle slope of the bottom of the exhaust air passage 11c. 11 flows into. And finally, it is discharged to the outside through the drain port 28. Further, a part of the water flowing down in the side vertical air passage 33 also flows into the outer tub 11 from a drain hole formed in a gap when the end surface member 11 d is mounted on the body member 11 a of the outer tub 11.

上述したように乾燥運転時には、外槽11及び循環風路30内を空気が循環し、その循環の過程で洗濯物から水分が奪われ、その水分は冷却水による冷却によって空気中から除去される。したがって、乾燥効率を高める1つの方法は、側部垂直風路33内での除湿効率を高めることである。そこで、本実施例のドラム式洗濯乾燥機では、冷却水の流量をできるだけ抑えながら高い除湿効果を得るような特徴的な構成を採用し、これにより高い節水性と高い乾燥効率とを実現している。この点について詳細に述べる。   As described above, during the drying operation, air circulates in the outer tub 11 and the circulation air passage 30, and moisture is taken away from the laundry in the course of the circulation, and the moisture is removed from the air by cooling with the cooling water. . Therefore, one way to increase the drying efficiency is to increase the dehumidification efficiency in the side vertical air passage 33. Therefore, the drum type washing and drying machine of this embodiment adopts a characteristic configuration that obtains a high dehumidifying effect while suppressing the flow rate of cooling water as much as possible, thereby realizing high water saving and high drying efficiency. Yes. This point will be described in detail.

図7に示すように、側部垂直風路33にあって冷却水供給口35の直下の内壁は傾斜壁50となっておりその傾斜壁50の下端には風路内方に膨出した上部膨出部51となっている。これにより、冷却水供給口35から側部垂直風路33内に放出された水は、傾斜壁50に沿って流下した後、上部膨出部51の突端を乗り越えて分散しながらシャワー状に落下する。   As shown in FIG. 7, in the side vertical air passage 33, the inner wall directly below the cooling water supply port 35 is an inclined wall 50, and an upper portion bulging inward of the air passage is formed at the lower end of the inclined wall 50. A bulging portion 51 is formed. As a result, the water discharged from the cooling water supply port 35 into the side vertical air passage 33 flows down along the inclined wall 50 and then falls in a shower-like manner while getting over the tip of the upper bulging portion 51 and being dispersed. To do.

側部垂直風路33の下方には、内壁面を風路内方に膨出させることにより管路の断面積を小さくした第1絞り部52が形成され、さらにその第1絞り部の下方には第2絞り部56が形成されている。   Below the side vertical air passage 33, a first throttle portion 52 is formed in which the inner wall surface bulges inward of the air passage to reduce the cross-sectional area of the pipe, and further below the first throttle portion. A second aperture 56 is formed.

上側の第1絞り部52は、本発明における上側凸部として、風路水平断面の短手方向に対向する両内壁面の一部が風路内方に膨出して開口部が狭まった第1膨出部53と、風路水平断面の長手方向に対向する両内壁面が風路内方に膨出して開口部が狭まった第2膨出部54とを有する。第1膨出部53は長手方向全体に形成されていないため、短手方向の開口部幅は均一ではなく、幅広の部分と幅狭の部分とを有している。このような開口形状では、幅広の部分においては上昇する空気流が通過し易いため単位時間当たりの流量が大きい反面、流速は相対的に小さくなり、一方、幅狭の部分においては空気流が通りにくいため流速は相対的に大きくなる。そのため、第1絞り部52の直上では空気流の流速が水平断面内で不均一になり、それによって複雑な乱流を生じる。更にまた、第1膨出部53は、長手方向に水平ではなく、所定の角度を以て幅広の開口部の方向に下傾斜するように設けられている。   The upper first throttle part 52 is the upper convex part in the present invention. The first narrowed part of both inner wall surfaces facing in the short direction of the horizontal cross section of the air path is bulged inward of the air path and the opening is narrowed. The bulging portion 53 and the second bulging portion 54 in which both inner wall surfaces facing the longitudinal direction of the air passage horizontal section bulge inward of the air passage and the opening portion is narrowed. Since the first bulging portion 53 is not formed in the entire longitudinal direction, the width of the opening in the short direction is not uniform, and has a wide portion and a narrow portion. In such an opening shape, the rising air flow is easy to pass in the wide portion, so the flow rate per unit time is large, but the flow velocity is relatively small, while the air flow passes in the narrow portion. Since it is difficult, the flow rate is relatively large. For this reason, the flow velocity of the air flow is not uniform in the horizontal cross section immediately above the first throttle portion 52, thereby generating a complicated turbulent flow. Furthermore, the first bulging portion 53 is provided not to be horizontal in the longitudinal direction but to be inclined downward in the direction of the wide opening at a predetermined angle.

上記構成により、上述したようにシャワー状に落下して来た水の一部は第1及び第2膨出部53、54に当たって跳ね返り、さらに小さな水滴となって飛散する。このとき、第1膨出部53が上述したように傾斜しているため、この第1膨出部53の上面に当たった水は真上ではなく斜め上方に跳ね返る。また、上昇して来る空気流によって小さな水滴は吹き上げられるが、その空気流の流速が水平断面内で不均一で且つ複雑であることによって、水滴は巻き上げられて旋回する。   With the above configuration, part of the water that has fallen like a shower as described above rebounds upon hitting the first and second bulging portions 53 and 54 and scatters as smaller water droplets. At this time, since the first bulging portion 53 is inclined as described above, the water hitting the upper surface of the first bulging portion 53 rebounds diagonally upward rather than directly above. In addition, small water droplets are blown up by the rising air flow, and the water droplets are swung up and swirled because the flow velocity of the air flow is uneven and complicated in the horizontal section.

さらに、水滴同士が衝突したり、落下途中で側部垂直風路33の内壁面に当たって方向を変えるものもあるため、水滴の軌道は一層複雑になり、第1絞り部52の上方の風路内には、様々な大きさの水滴がバブリング状態で存在する水滴拡散域55が本発明における上部除湿領域として形成される。この水滴拡散域55では導入された水の多くが比較的長い時間留まり、また小さな水滴となっているため実効的な表面積が大きい。そのため、比較的少量の水であっても空気との熱交換が効率良く行われ、湿った空気を効率良く冷却して水蒸気の凝縮液化を促進させることができる。   Furthermore, since water droplets collide with each other or change the direction of the water droplets by hitting the inner wall surface of the side vertical air passage 33 during the fall, the trajectory of the water droplets becomes more complicated, and the air passage above the first throttle portion 52 The water droplet diffusion region 55 where water droplets of various sizes exist in a bubbling state is formed as the upper dehumidifying region in the present invention. In the water droplet diffusion region 55, most of the introduced water stays for a relatively long time, and since it is a small water droplet, the effective surface area is large. Therefore, even with a relatively small amount of water, heat exchange with air can be performed efficiently, and moist air can be efficiently cooled to promote condensation and liquefaction of water vapor.

上述したように主として第1絞り部52の水滴拡散域55で凝縮液化されて生じた水と冷却水とは、側部垂直風路33の内壁面を伝い落ちて第2絞り部56に達する。第2絞り部56は、外槽11側、つまり開口32側に位置する内壁面のみが風路内方に膨出して開口部が狭まった膨出部(本発明における凸部に相当)57から成る。膨出部57は上面が風路内方に下傾斜した断面三角状になっており、その頂部の角度αは80〜100°程度の範囲に設定され、膨出部57は鉛直線を底辺としたほぼ二等辺三角形となるように角度βが決められる。ここではα≒90°、β≒135°に設定されている。また、膨出部57の頂部の高さHは風路の短手方向の内寸Lの約1/2に設定されており、この実施例では、空気の流れ状態を示す指標値であるレイノルズ数は2.5×104〜2.7×104程度になっている。これについては後で説明する。 As described above, the water and the cooling water generated by condensing and liquefying mainly in the water droplet diffusion region 55 of the first throttle portion 52 travel down the inner wall surface of the side vertical air passage 33 and reach the second throttle portion 56. The second throttle 56 is formed from a bulging portion 57 (corresponding to a convex portion in the present invention) 57 in which only the inner wall surface located on the outer tub 11 side, that is, the opening 32 side bulges inwardly of the air passage and the opening is narrowed. Become. The bulging portion 57 has a triangular cross-section with the upper surface inclined downward inward of the air passage, the angle α of the top portion is set in a range of about 80 to 100 °, and the bulging portion 57 has a vertical line as a base. The angle β is determined so as to be an approximately isosceles triangle. Here, α≈90 ° and β≈135 ° are set. Further, the height H of the top of the bulging portion 57 is set to about ½ of the inner dimension L in the short direction of the air passage. In this embodiment, Reynolds which is an index value indicating the air flow state. The number is about 2.5 × 10 4 to 2.7 × 10 4 . This will be described later.

この第2絞り部56は、排気風路11c内をほぼ水平方向に進行してきた空気流が開口11e、32を通過した後、上方にほぼγ=90°向きを変えて略鉛直上方に進行し始めた直後の位置に配置されている。このように空気流の進行方向がほぼ90°曲がった場合、その曲がりの内側よりも外側のほうが流速が大きくなる。そのため、図10に示すように、側部垂直風路33内にあって第2絞り部56のすぐ下の水平断面内では、上昇してくる空気流の速度は開口32側で最も小さく、その対面側にいくに従い大きくなるという速度分布を持つ。即ち、ここでは、開口32から側部垂直風路33に連なる約90°の曲がり角度を有する部分が本発明における空気流生起手段及び屈曲部に相当する。但し、この角度γは一例であって、或る程度以上の角度を有する屈曲部を形成すれば、横断面内での流速の不均一性を実現できる。   The second restricting portion 56 moves substantially vertically upward by changing the direction of γ = 90 ° upward after the air flow traveling substantially horizontally in the exhaust air passage 11c passes through the openings 11e and 32. It is located at the position immediately after starting. In this way, when the traveling direction of the air flow is bent by approximately 90 °, the flow velocity is larger on the outer side than on the inner side of the bending. Therefore, as shown in FIG. 10, the velocity of the rising air flow is the smallest on the side of the opening 32 in the horizontal cross section in the side vertical air passage 33 and immediately below the second throttle portion 56. It has a velocity distribution that increases as it goes to the opposite side. That is, here, a portion having a bending angle of about 90 ° connected from the opening 32 to the side vertical air passage 33 corresponds to the air flow generating means and the bent portion in the present invention. However, this angle γ is an example, and if a bent part having an angle of a certain degree or more is formed, non-uniformity of the flow velocity in the cross section can be realized.

上述したように第2絞り部56において膨出部57の上側の傾斜に沿って水が伝い落ち、一方、下方から上記のように速度分布を有する空気流が上昇してくると、水に作用する重力による速度成分と空気流の速度成分とが釣り合い、図10中に矢印で示すように、水は膨出部57の頂部付近で膨出部57を離れ、対向面に向かって斜めに上昇して風路内に広がる水膜58を形成する(したがって、膨出部57及び、開口32から側部垂直風路33に連なる約90°の曲がり角度を有する部分とが本発明における除湿領域形成手段に相当する)。したがって、外槽11から吐き出された湿った空気は上記水滴拡散域55に達する前にこの水膜58中を通過して冷却され、空気中の水蒸気が凝縮液化して除去される。もちろん、側部垂直風路33内での除湿は上記2つの領域でのみ行われるわけではなく、それ以外の部分でも落下して来る冷却水で冷却されることで水蒸気は凝縮液化し、風路の内壁に結露する。   As described above, when water flows down along the upper slope of the bulging portion 57 in the second throttle portion 56, and the air flow having the velocity distribution as described above rises from below, it acts on the water. The velocity component due to gravity and the velocity component of the air flow are balanced, and the water leaves the bulging portion 57 near the top of the bulging portion 57 and rises obliquely toward the opposite surface, as shown by the arrows in FIG. Thus, the water film 58 spreading in the air passage is formed (therefore, the bulging portion 57 and the portion having a bend angle of about 90 ° extending from the opening 32 to the side vertical air passage 33 form the dehumidifying region in the present invention. Equivalent to the means). Therefore, the moist air discharged from the outer tank 11 passes through the water film 58 and is cooled before reaching the water droplet diffusion area 55, and the water vapor in the air is condensed and removed. Of course, the dehumidification in the side vertical air passage 33 is not performed only in the above two regions, and the water vapor is condensed and liquefied by cooling with the cooling water falling in other portions as well. Condensation on the inner walls of

このように、本ドラム式洗濯乾燥機の構成では、ドラム14内で洗濯物との熱交換により発生した水蒸気を多量に含む空気は側部垂直風路33に入った後、第2絞り部56により形成される水膜58と、第1絞り部52により形成される水滴拡散域55とで主として2段階で冷却され、それぞれ水蒸気が凝縮液化して除去される。しかも、水膜58で使用される水は水滴拡散域55で一旦使用された水であるから、同じ水を利用して2回の除湿を行うことができる。それにより、単位時間当たりの除湿効率を向上させ、従来よりも冷却水を流す時間を短縮しても従来と同等の乾燥を達成することができる。   As described above, in the configuration of the present drum-type washing and drying machine, the air containing a large amount of water vapor generated by heat exchange with the laundry in the drum 14 enters the side vertical air passage 33 and then the second throttle unit 56. The water film 58 formed by the above and the water droplet diffusion region 55 formed by the first throttle portion 52 are mainly cooled in two stages, and the water vapor is condensed and removed respectively. Moreover, since the water used in the water film 58 is once used in the water droplet diffusion region 55, it can be dehumidified twice using the same water. Thereby, the dehumidification efficiency per unit time can be improved, and even if the cooling water flow time is shortened compared to the conventional case, the same drying as the conventional one can be achieved.

また、側部垂直風路33内に送り込まれる空気流には洗濯物から出た糸屑等の微小な異物が混じっているが、空気流が水膜58を通過する際にこうした異物は濡れて水と共に落下する。また、側部垂直風路33を上昇する空気流にとっては、第1絞り部52は流れ抵抗になるため、水膜58で捕捉されない異物が空気流に乗って上昇して来たとしても、こうした異物は第1絞り部52の下方で滞留する。そして、こうした異物は上方から流下して来る水に捉えられて、水と一緒に流下して機外へと排出される。したがって、乾燥運転時に洗濯物から舞い上がる糸屑等の異物がブロア41やヒータ44にまで達してこれらに付着することや、外槽11内にまで循環して再び洗濯物に付着してしまうことを防止することができる。   In addition, the air flow sent into the side vertical air passage 33 is mixed with minute foreign matters such as lint from the laundry, but these foreign matters get wet when the air flow passes through the water film 58. Fall with water. In addition, for the air flow rising up the side vertical air passage 33, the first throttle portion 52 becomes flow resistance, so even if foreign matter not captured by the water film 58 rises on the air flow, The foreign matter stays below the first throttle portion 52. These foreign substances are caught in the water flowing down from above, and flow down with the water and discharged outside the apparatus. Therefore, foreign matter such as lint that soars from the laundry during the drying operation reaches the blower 41 and the heater 44 and adheres to them, or circulates into the outer tub 11 and adheres to the laundry again. Can be prevented.

ここで、膨出部57の頂部の高さH等の条件の決め方について説明する。一般に、流体が管路を通過する際のレイノズル数は次の式で求まることが知られている。
レイノルズ数=流体の管内断面平均速度[m/s]×管路内径[m]/流体の動粘度[m2/s]
Here, how to determine conditions such as the height H of the top of the bulging portion 57 will be described. In general, it is known that the number of lay nozzles when a fluid passes through a pipeline is obtained by the following equation.
Reynolds number = average cross-sectional velocity of fluid in pipe [m / s] x inner diameter of pipe [m] / kinematic viscosity of fluid [m 2 / s]

本ドラム式洗濯乾燥機において、第2絞り部56における風路断面積は2767.35[mm2]であり、乾燥運転時の平均風量は1.44[m3/分]、第2絞り部56を通過する際の空気温度は60〜70℃、空気の動粘性係数は19.3×10-6[m2/s](60℃時)、20.3×10-6[m2/s](70℃時)である。これから、流速は約8.6726[m/s]、管路内径は0.05936[m]と計算できる。これを上式に入れて計算すると、レイノルズ数は空気温度60℃のときに26673.86、空気温度70℃のときに25357.88と求まる。このような条件の下では、十分に除湿効率が高まるような適当な大きさの水膜が形成される。実験によれば、或る程度満足できるような除湿効率を得るためには、1×104〜4×104程度のレイノルズ数とする必要がある。空気の流速を上記と同じに設定した場合、管路内径を調節することでレイノルズ数を上記範囲に収める必要があり、そこから算出すると膨出部57の頂部の高さHを内寸Lの1/3〜2/3程度の範囲にすればよいことが分かる。 In this drum type washing and drying machine, the air passage cross-sectional area in the second throttle unit 56 is 2767.35 [mm 2 ], the average air volume during the drying operation is 1.44 [m 3 / min], and the second throttle unit The air temperature when passing through 56 is 60 to 70 ° C., and the kinematic viscosity coefficient of air is 19.3 × 10 −6 [m 2 / s] (at 60 ° C.), 20.3 × 10 −6 [m 2 / s] (at 70 ° C.). From this, it can be calculated that the flow velocity is about 8.6726 [m / s] and the inner diameter of the pipe is 0.05936 [m]. When this is put into the above equation and calculated, the Reynolds number is found to be 26673.86 when the air temperature is 60 ° C. and 25357.88 when the air temperature is 70 ° C. Under such conditions, a water film of an appropriate size is formed so that the dehumidification efficiency is sufficiently increased. According to experiments, in order to obtain a dehumidifying efficiency that can be satisfied to some extent, it is necessary to set the Reynolds number to about 1 × 10 4 to 4 × 10 4 . When the air flow rate is set to be the same as above, it is necessary to adjust the inner diameter of the pipe to keep the Reynolds number within the above range, and from this, the height H of the top of the bulging portion 57 is set to the inner dimension L. It can be seen that a range of about 1/3 to 2/3 is sufficient.

なお、本発明者は実験により、上記構成で以て、衣類重量:6kg、定格条件(室温、水温ともに20℃)の下で、特許文献1に記載された従来のドラム式洗濯乾燥機(上記例で第1絞り部52のみを備えた場合)と比較して、同程度の乾燥性能を得るために乾燥運転時に冷却水の使用水量を約14%減らせることを確認した。   In addition, the inventor has experimented with the conventional drum-type washing / drying machine described in Patent Document 1 (above-mentioned) under the above-described configuration under the clothing weight: 6 kg and the rated conditions (both room temperature and water temperature are 20 ° C.). Compared with the case where only the first throttle part 52 is provided in the example, it was confirmed that the amount of cooling water used can be reduced by about 14% during the drying operation in order to obtain the same level of drying performance.

また、本ドラム式洗濯乾燥機では、ブロア41が回転駆動された際に循環風路30内に空気が循環するが、上記のようにブロア41の上手に通気孔37が設けられているため、この通気孔37を介して外気が採り入れられ、循環空気と一緒になってヒータ44に達する。通常、この外気の温度は風路部材31を経てブロア41に戻って来る空気の温度よりも低く、しかも湿度も低い。そのため、外気が採り入れられると外気が無い場合に比べてヒータ44による加熱後の空気の温度は少し下がるものの、ドラム14内での洗濯物との熱交換効率は殆ど変わらず、上記側部垂直風路33内での除湿効率が高まる。   In the drum type washing and drying machine, air is circulated in the circulation air passage 30 when the blower 41 is driven to rotate. However, since the vent hole 37 is provided above the blower 41 as described above, Outside air is taken in through the vent 37 and reaches the heater 44 together with the circulating air. Usually, the temperature of the outside air is lower than the temperature of the air returning to the blower 41 through the air passage member 31, and the humidity is also low. Therefore, when the outside air is taken in, the temperature of the air after being heated by the heater 44 is slightly lower than the case where there is no outside air, but the heat exchange efficiency with the laundry in the drum 14 is hardly changed, and the side vertical wind The dehumidification efficiency in the path 33 is increased.

また、通気孔37を通して外気が採り入れられた分だけ外槽11及び循環風路30内から漏れ出す空気が増加する。外槽11内からの空気の漏出は主として、洗濯運転の給水時に外槽11内の空気を外部に逃がすための通気孔を通して生じるが、漏れ出すのは外気よりも湿度の高い空気であり、それによって外槽11及び循環風路30内の湿気は若干ではあるが減少する。これも乾燥効率を高めるのに寄与する。さらにまた、通気孔37を通して循環風路30が外部と連通することによって、循環風路30内の流れ抵抗が小さくなり、ブロア41の回転速度が同じであっても風量が増加する。それにより、洗濯物の乾燥は一層促進される。このように通気孔37を設けることによっても、乾燥効率を高め、乾燥運転時に使用する冷却水の水量を減らすことができる。   Further, the amount of air leaking from the outer tub 11 and the circulation air passage 30 increases by the amount of outside air taken in through the vent hole 37. Leakage of air from the outside of the outer tub 11 mainly occurs through a vent hole for escaping the air in the outer tub 11 to the outside when water is supplied in the washing operation, but the leak is air having a higher humidity than the outside air. As a result, the humidity in the outer tub 11 and the circulation air passage 30 is slightly reduced. This also contributes to increasing the drying efficiency. Furthermore, the circulation air passage 30 communicates with the outside through the ventilation hole 37, whereby the flow resistance in the circulation air passage 30 is reduced, and the air volume is increased even if the rotation speed of the blower 41 is the same. Thereby, drying of the laundry is further promoted. Providing the air holes 37 in this way can also increase the drying efficiency and reduce the amount of cooling water used during the drying operation.

通気孔37の孔径は好ましくは3〜10mmφ程度がよい。孔径がこれよりも小さいと、外気の採り入れ量が少なすぎて上記のような冷却水の節水の効果が殆どなく、逆に孔径が大きずぎると外気が低温高湿である場合に乾燥性能の低下が起こるためである。例えば、通気孔37の孔径を6mmφとした場合、衣類重量:6kg、定格条件(室温、水温ともに20℃)の下で、通気孔37を設けない場合と比較して、同程度の乾燥性能を得るために乾燥運転時に冷却水の使用水量を約40%減らせることを確認した。   The diameter of the air hole 37 is preferably about 3 to 10 mmφ. If the pore size is smaller than this, the amount of outside air taken in is too small, and there is almost no effect of saving the cooling water as described above. Conversely, if the pore size is too large, the drying performance deteriorates when the outside air is low temperature and high humidity. Because it happens. For example, when the hole diameter of the air hole 37 is 6 mmφ, the drying performance of the same degree is obtained as compared with the case where the air hole 37 is not provided under the clothing weight: 6 kg and rated conditions (room temperature and water temperature are both 20 ° C.). In order to obtain it, it was confirmed that the amount of cooling water used during the drying operation can be reduced by about 40%.

なお、上記実施例は本発明の一例にすぎず、本発明の趣旨の範囲で適宜変更や修正を行えることは明らかである。   It should be noted that the above embodiment is merely an example of the present invention, and it is obvious that changes and modifications can be made as appropriate within the scope of the present invention.

また、上記実施例は本発明をドラム式洗濯乾燥機に適用した例であるが、本発明はドラム式洗濯乾燥機のみならず、上述したように垂直軸又は垂直からやや傾斜した軸を中心に回転自在の有底円筒形状の洗濯脱水槽を備えた洗濯乾燥機にも適用可能であることは当然である。また、洗濯機能を有さず乾燥機能のみを有する衣類乾燥機にも適用できることも当然である。   Moreover, although the said Example is an example which applied this invention to the drum type washing / drying machine, this invention is not only a drum type washing / drying machine but centering on the axis | shaft slightly inclined from the vertical axis | shaft as mentioned above. Of course, the present invention can also be applied to a washing and drying machine including a rotatable bottomed cylindrical laundry dewatering tub. Of course, the present invention can also be applied to a clothes dryer having only a drying function without a washing function.

本発明の一実施例によるドラム式洗濯乾燥機の外観斜視図。1 is an external perspective view of a drum type washing and drying machine according to an embodiment of the present invention. 本実施例のドラム式洗濯乾燥機の内部構造を示す正面縦断面図。The front longitudinal cross-sectional view which shows the internal structure of the drum type washing-drying machine of a present Example. 本実施例のドラム式洗濯乾燥機の内部構造を示す右側面縦断面図。The right side longitudinal cross-sectional view which shows the internal structure of the drum type washing-drying machine of a present Example. 本実施例のドラム式洗濯乾燥機における乾燥風路を中心に描出した正面縦断面図。The front longitudinal cross-sectional view drawn centering on the drying air path in the drum type washing-drying machine of a present Example. 本実施例のドラム式洗濯乾燥機の内部構造を示す右側面図。The right view which shows the internal structure of the drum type washing-drying machine of a present Example. 本実施例のドラム式洗濯乾燥機における乾燥風路を中心に描出した上面横断面図。The upper surface cross-sectional view drawn centering on the drying air path in the drum type washing-drying machine of a present Example. 本実施例のドラム式洗濯乾燥機において乾燥風路の一部となる除湿風路の右側面外観図。The right side external view of the dehumidification air path used as a part of dry air path in the drum type washing-drying machine of a present Example. 図7に示した除湿風路の正面外観図。The front external view of the dehumidification air path shown in FIG. 図7中のB−B’矢視線断面図。B-B 'arrow sectional drawing in FIG. 図7中のA−A’矢視線断面図。FIG. 8 is a cross-sectional view taken along line A-A ′ in FIG. 7.

符号の説明Explanation of symbols

1…外箱
11…外槽
11a…胴部部材
11b…排気出口
11c…排気風路
11d…端面部材
11e、11f…開口
14…ドラム
30…循環風路
31…風路部材
32…開口
33…側部垂直風路
34…後部水平風路
35…冷却水供給口
36…出口端
37…通気孔
40…ブロア室
41…ブロア
42…ブロアモータ
43…ヒータハウジング
44…ヒータ
50…傾斜壁
51…上部膨出部
52…第1絞り部
53…第1膨出部
54…第2膨出部
55…水滴拡散域
56…第2絞り部
57…膨出部
58…水膜
DESCRIPTION OF SYMBOLS 1 ... Outer box 11 ... Outer tank 11a ... Body part 11b ... Exhaust outlet 11c ... Exhaust air path 11d ... End surface member 11e, 11f ... Opening 14 ... Drum 30 ... Circulation air path 31 ... Air path member 32 ... Opening 33 ... side Vertical air passage 34 ... Rear horizontal air passage 35 ... Cooling water supply port 36 ... Outlet end 37 ... Vent hole 40 ... Blower chamber 41 ... Blower 42 ... Blower motor 43 ... Heater housing 44 ... Heater 50 ... Inclined wall 51 ... Upper bulge Part 52 ... First throttle part 53 ... First bulge part 54 ... Second bulge part 55 ... Water droplet diffusion region 56 ... Second throttle part 57 ... bulge part 58 ... Water film

Claims (11)

乾燥対象である濡れた洗濯物が内部に収容される乾燥槽と、該乾燥槽内から空気を吸い込んで再び該乾燥槽内に送り込むための循環風路と、該循環風路内にあって前記乾燥槽より送られて来る湿った空気を冷却して水蒸気を凝縮液化させる除湿手段と、前記循環風路内で前記除湿手段よりも下流側にあって該除湿手段により除湿された空気を加熱する加熱手段と、を具備する乾燥機において、
前記除湿手段は、
前記循環風路の一部を成し、湿った空気を下方から上方へと流通させる除湿風路と、
該除湿風路内に除湿用の冷却水を供給する冷却水供給手段と、
前記除湿風路内で前記冷却水供給手段による冷却水の供給位置よりも下方にあって、該冷却水を対向する内壁面側に向かって放出させるために該除湿風路の内壁面に設けられた凸部と、
該凸部の下方にあって風路の横断面内で前記凸部の頂部から離れるほど空気流の速度が大きくなるように空気流の速度分布を生じさせる空気流生起手段と、
を有することを特徴とする乾燥機。
A drying tub in which wet laundry to be dried is accommodated; a circulation air passage for sucking air from the drying tub and sending it into the drying tub; and Dehumidifying means for cooling the humid air sent from the drying tank to condense and liquefy the water vapor, and heating the air dehumidified by the dehumidifying means in the downstream of the dehumidifying means in the circulation air passage. A dryer comprising heating means,
The dehumidifying means includes
A dehumidifying air passage that forms part of the circulation air passage and circulates moist air from below to above;
Cooling water supply means for supplying cooling water for dehumidification into the dehumidifying air passage;
Provided on the inner wall surface of the dehumidifying air passage in the dehumidifying air passage below the cooling water supply position by the cooling water supply means and for releasing the cooling water toward the opposing inner wall surface. Convex parts,
An air flow generating means for generating a velocity distribution of the air flow so that the velocity of the air flow increases as the distance from the top of the convex portion is lower than the convex portion in the cross section of the air passage;
A dryer characterized by having.
前記空気流生起手段は湿った空気を所定角度曲げて前記除湿風路に送り込む、前記循環風路の一部を成す屈曲部であることを特徴とする請求項1に記載の乾燥機。   2. The dryer according to claim 1, wherein the air flow generating means is a bent portion that forms a part of the circulation air passage, which bends humid air by a predetermined angle and sends the air to the dehumidification air passage. 前記除湿風路の横断面開口は細長い略矩形状であって、前記凸部は該横断面開口の短手方向に該風路の内壁が内方に突出したものであることを特徴とする請求項1又は2に記載の乾燥機。   The cross-sectional opening of the dehumidifying air passage has an elongated and substantially rectangular shape, and the convex portion has an inner wall projecting inward in the short direction of the cross-sectional opening. Item 3. The dryer according to item 1 or 2. レイノルズ数が1.5×104〜4.0×104程度となるように前記凸部の位置の風路断面積及び風量が設定されることを特徴とする請求項1〜3のいずれかに記載の乾燥機。 4. The airway cross-sectional area and the air volume at the position of the convex portion are set so that the Reynolds number is about 1.5 × 10 4 to 4.0 × 10 4 . The dryer as described in. 前記凸部はその縦断面が、鉛直線を底辺とし頂部の角度が80〜100°程度である略二等辺三角形状、又はその略二等辺三角形の頂部を含む一部を切り出した形状であることを特徴とする請求項1〜4のいずれかに記載の乾燥機。   The convex portion has a shape in which a longitudinal section has a substantially isosceles triangle shape having a vertical line as a base and an apex angle of about 80 to 100 °, or a part including a top portion of the approximately isosceles triangle. The dryer according to any one of claims 1 to 4. 前記除湿風路内にあって前記凸部の上方には該除湿風路の内壁から内方に突出する上側凸部が形成され、前記冷却水供給手段により供給された冷却水が前記上側凸部に当たり跳ね返ってその上部空間に上部除湿領域を形成して成ることを特徴とする請求項1〜5のいずれかに記載の乾燥機。   An upper convex portion that protrudes inward from the inner wall of the dehumidifying air passage is formed in the dehumidifying air passage and above the convex portion, and the cooling water supplied by the cooling water supply means is the upper convex portion. The dryer according to any one of claims 1 to 5, wherein the upper dehumidifying region is formed in the upper space by rebounding. 乾燥対象である濡れた洗濯物が内部に収容される乾燥槽と、該乾燥槽内から空気を吸い込んで再び該乾燥槽内に送り込むための循環風路と、該循環風路内にあって前記乾燥槽より送られて来る湿った空気を冷却して水蒸気を凝縮液化させる除湿手段と、前記循環風路内で前記除湿手段よりも下流側にあって該除湿手段により除湿された空気を加熱する加熱手段と、を具備する乾燥機において、
前記除湿手段は、
前記循環風路の一部を成し、湿った空気を下方から上方へと流通させる除湿風路と、
該除湿風路内に上方から除湿用の冷却水を供給する冷却水供給手段と、
前記除湿風路内を上昇する空気流が有する力を該除湿風路内を流下する前記冷却水に作用させることにより、該除湿風路の横断面内を通過する空気流に交差する方向に膜状に水を広げた除湿領域を形成する除湿領域形成手段と、
を有することを特徴とする乾燥機。
A drying tub in which wet laundry to be dried is accommodated; a circulation air passage for sucking air from the drying tub and sending it into the drying tub; and A dehumidifying means for cooling the humid air sent from the drying tank to condense and liquefy the water vapor, and heating the air dehumidified by the dehumidifying means in the downstream of the dehumidifying means in the circulation air passage. A dryer comprising heating means,
The dehumidifying means includes
A dehumidifying air passage that forms part of the circulation air passage and circulates moist air from below to above;
Cooling water supply means for supplying cooling water for dehumidification from above into the dehumidifying air passage;
By applying the force of the air flow rising in the dehumidification air passage to the cooling water flowing down in the dehumidification air passage, the membrane is crossed in the direction crossing the air flow passing through the cross section of the dehumidification air passage Dehumidifying region forming means for forming a dehumidifying region in which water is spread in a shape;
A dryer characterized by having.
前記除湿領域形成手段は、
前記冷却水を斜め下方向に流下させて前記除湿風路内に放出する傾斜面を有して該除湿風路の内壁面から内方に突出する凸部と、
前記凸部の下方において前記除湿風路の横断面内で前記凸部の頂部から離れるほど空気流の速度が大きくなるように空気流の速度分布を生じさせる空気流生起手段と、
から成ることを特徴とする請求項7に記載の乾燥機。
The dehumidifying region forming means includes
A convex portion projecting inward from the inner wall surface of the dehumidifying air passage, having an inclined surface that causes the cooling water to flow obliquely downward and discharge it into the dehumidifying air passage;
Air flow generating means for generating a velocity distribution of the air flow such that the velocity of the air flow increases as the distance from the top of the convex portion increases within the cross section of the dehumidifying air path below the convex portion,
The dryer according to claim 7, comprising:
乾燥対象である濡れた洗濯物が内部に収容された乾燥槽と、該乾燥槽内から空気を吸い込んで再び該乾燥槽内に送り込むための循環風路と、該循環風路内にあって前記乾燥槽より送られて来る湿った空気を冷却して水蒸気を凝縮液化させる除湿手段と、前記循環風路内で前記除湿手段よりも下流側にあって該除湿手段により除湿された空気を加熱する加熱手段と、を具備する乾燥機において、
前記循環風路にあって前記除湿手段と前記加熱手段との間に、該風路内部と外部とを連通する通気孔を設け、乾燥運転時に該通気孔を通して外気を取り込みつつ空気を循環させるようにしたことを特徴とする乾燥機。
A drying tub in which wet laundry to be dried is housed; a circulation air passage for sucking air from the drying tub and sending it into the drying tub; and A dehumidifying means for cooling the humid air sent from the drying tank to condense and liquefy the water vapor, and heating the air dehumidified by the dehumidifying means in the downstream of the dehumidifying means in the circulation air passage. A dryer comprising heating means,
A ventilation hole is provided in the circulation air passage between the dehumidifying means and the heating means so as to communicate the inside and the outside of the air passage, and air is circulated while taking in the outside air through the ventilation hole during the drying operation. A dryer characterized by that.
前記循環風路にあって前記除湿手段と前記加熱手段との間に送風用ブロアが配置され、前記除湿手段は該循環風路内に除湿用冷却水を供給する供給口を含み、前記通気孔は前記ブロアと前記供給口との間に設けられていることを特徴とする請求項9に記載の乾燥機。   An air blower is disposed between the dehumidifying means and the heating means in the circulation air passage, and the dehumidification means includes a supply port for supplying dehumidifying cooling water into the circulation air passage, and the air vent The dryer according to claim 9, wherein the dryer is provided between the blower and the supply port. 前記通気孔は孔径が3〜10mmφである又はそれに相当する開口面積を有する1乃至複数の開口から成ることを特徴とする請求項9又は10に記載の乾燥機。
The dryer according to claim 9 or 10, wherein the vent hole has one or a plurality of openings having a hole diameter of 3 to 10 mmφ or an opening area corresponding to the hole diameter.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011240179A (en) * 2011-09-05 2011-12-01 Sanyo Electric Co Ltd Washing machine
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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102082744B1 (en) * 2013-02-20 2020-02-28 삼성전자주식회사 Drum Washing Machine
KR102364923B1 (en) * 2017-06-15 2022-02-18 주식회사 위니아전자 Wall mounted drum type washing machine
EP3741898B1 (en) * 2019-05-21 2023-08-02 BSH Hausgeräte GmbH Device for washing and drying objects and method for operating such a device

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6163561A (en) * 1984-09-03 1986-04-01 株式会社村田製作所 High frequency continuous drying device for ceramic sheet
JPH0396570A (en) * 1989-03-30 1991-04-22 Himenogumi:Kk Bolt housing tool and clamping method for post by using said housing tool
JPH11347282A (en) * 1998-06-05 1999-12-21 Matsushita Electric Ind Co Ltd Washing/drying machine
TW593829B (en) * 2001-05-23 2004-06-21 Hitachi Ltd Washing and drying machine and water-cooled heat exchanger
JP3806649B2 (en) * 2002-01-15 2006-08-09 三洋電機株式会社 Washing and drying machine
JP2004121587A (en) * 2002-10-03 2004-04-22 Matsushita Electric Ind Co Ltd Washing and drying machine
KR20040100894A (en) * 2003-05-21 2004-12-02 산요덴키가부시키가이샤 Washing machine with clothes dry function

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012205777A (en) * 2011-03-30 2012-10-25 Panasonic Corp Clothes treatment apparatus
JP2011240179A (en) * 2011-09-05 2011-12-01 Sanyo Electric Co Ltd Washing machine

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