JP2007313063A - Washing drying machine - Google Patents

Washing drying machine Download PDF

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JP2007313063A
JP2007313063A JP2006146393A JP2006146393A JP2007313063A JP 2007313063 A JP2007313063 A JP 2007313063A JP 2006146393 A JP2006146393 A JP 2006146393A JP 2006146393 A JP2006146393 A JP 2006146393A JP 2007313063 A JP2007313063 A JP 2007313063A
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circulation path
air circulation
air
washing
drying
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Inventor
Masahito Kyo
雅人 姜
Toshinari Matsumoto
俊成 松本
Hiroshi Takaso
高祖  洋
Toru Hirose
徹 廣瀬
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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Priority to JP2006146393A priority Critical patent/JP2007313063A/en
Publication of JP2007313063A publication Critical patent/JP2007313063A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To enhance the sound absorbency of an air circulation path to reduce noise without deteriorating the drying performance of a washing drying machine. <P>SOLUTION: The washing drying machine has an outer tank 33, a rotary drum 35, a heat source 39, and the air circulation path 40, sound generating when drying air flows through air circulation path 40 is absorbed by arranging a sound absorbing material 43 on an inner surface of a part of the air circulation path 40 for circulating the drying air by a blower means 41 to reduce the noise during drying operation. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、衣類等の洗濯および乾燥を行う洗濯乾燥機に関するものである。   The present invention relates to a washing / drying machine for washing and drying clothes and the like.

従来、この種の洗濯乾燥機は、図9に示すように、本体1と、本体1内にサスペンション2によって支持された外槽3と、外槽3内に水平軸を中心に回転し、衣類を収容する回転槽4と、回転槽4を駆動するモータ5と、外槽3の下部と本体1との間に設けたダンパー6と、本体1に固定され、乾燥運転時に衣類を乾燥させるために空気を暖める熱源7と、熱源7によって加熱された空気を回転槽4内へ供給し、循環させる空気循環路8と、空気循環路8に乾燥用空気を送風する送風手段9を有している。また、図9に示すように熱源7として、ヒートポンプサイクルを構成したものも提案されている。さらに、空気循環路8において、脱水運転時に、外槽3が振動するために、空気循環路8の一部に伸縮自在な可撓接合部10が設けられ、外槽3が振動しても、その振動が本体1に伝わりにくい構成となっている(例えば、特許文献1参照)。
特開2004−201772号公報
Conventionally, as shown in FIG. 9, this type of washing / drying machine rotates around a horizontal axis in a main body 1, an outer tub 3 supported by a suspension 2 in the main body 1, and a garment. A rotating tub 4 that houses the motor, a motor 5 that drives the rotating tub 4, a damper 6 provided between the lower portion of the outer tub 3 and the main body 1, and the main body 1 for drying clothes during a drying operation. A heat source 7 that warms the air, an air circulation path 8 that supplies and circulates the air heated by the heat source 7 into the rotary tank 4, and a blowing means 9 that blows drying air through the air circulation path 8. Yes. In addition, as shown in FIG. 9, a heat source that constitutes a heat pump cycle has been proposed. Further, in the air circulation path 8, the outer tub 3 vibrates during the dehydration operation, so that a flexible joint 10 that can be expanded and contracted is provided in a part of the air circulation path 8, and even if the outer tub 3 vibrates, The vibration is difficult to be transmitted to the main body 1 (see, for example, Patent Document 1).
JP 2004-201772 A

しかしながら、前記従来の構成では、乾燥運転時に空気が空気循環路8を流れる時に、空気循環路8を流れる風の音が透過して騒音が発生する。特に、可撓接合部10の部分は、伸縮可能にするために可撓性の蛇腹状の材料を用いられる。また、厚みも薄くする必要があるために、乾燥運転時には、そこから風の音が透過しやすくなっており、騒音が発生しやすい。   However, in the conventional configuration, when air flows through the air circulation path 8 during the drying operation, the sound of the wind flowing through the air circulation path 8 is transmitted to generate noise. In particular, a flexible bellows-like material is used for the flexible joint portion 10 in order to make it extendable and contractible. Further, since it is necessary to reduce the thickness, the wind sound is easily transmitted therethrough during the drying operation, and noise is easily generated.

本発明は、前記従来の課題を解決するもので、乾燥運転時の風量を低下させることなく、乾燥性能を維持し、騒音の発生を少なくした洗濯乾燥機を提供することを目的とする。   SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a washing and drying machine that maintains drying performance and reduces noise generation without reducing the air volume during drying operation.

前記従来の課題を解決するために、本発明の洗濯乾燥機は、衣類乾燥のために空気を暖める熱源によって加熱された空気を回転槽内へ供給し、循環させる空気循環路の内面に吸音材を設けたものである。   In order to solve the above-described conventional problems, the washing and drying machine according to the present invention supplies a sound-absorbing material to the inner surface of an air circulation path for supplying and circulating air heated by a heat source that heats air for clothes drying. Is provided.

これによって、乾燥性能を低下させることなく、空気循環路の吸音効果を向上させることができ、乾燥運転中に空気循環路を流れる風の音が効果的に吸音され、騒音を低減することができる。   Thereby, the sound absorption effect of the air circulation path can be improved without deteriorating the drying performance, and the sound of the wind flowing through the air circulation path can be effectively absorbed during the drying operation, and the noise can be reduced.

本発明の洗濯乾燥機は、乾燥運転時の風量を減少させることなく、送風による騒音を低くすることができる。   The washing / drying machine of the present invention can reduce noise caused by blowing air without reducing the air volume during the drying operation.

第1の発明は、洗濯機外枠に弾性支持された外槽と、前記外槽内に回転可能に設けられた回転槽と、前記回転槽を回転させる駆動手段と、衣類乾燥のために空気を暖める熱源と、前記熱源によって加熱された空気を前記回転槽内へ供給し、前記熱源との間を循環させる空気循環路と、前記空気循環路に乾燥用空気を送風する送風手段とを備え、前記空気循環路の内面に吸音材を設けたことにより、乾燥運転時に空気循環路を流れる風の音を吸音することができ、発生する騒音を低減させることができる。   According to a first aspect of the present invention, there is provided an outer tub elastically supported by a washing machine outer frame, a rotating tub rotatably provided in the outer tub, a driving means for rotating the rotating tub, and air for drying clothes. A heat source for heating the air, an air circulation path for supplying air heated by the heat source into the rotating tank and circulating between the heat source, and a blowing means for blowing drying air to the air circulation path By providing the sound absorbing material on the inner surface of the air circulation path, it is possible to absorb the sound of the wind flowing through the air circulation path during the drying operation, and to reduce the generated noise.

第2の発明は、特に、第1の発明の空気循環路は、送風手段の排気側に消音器を設け、前記消音器の内面に吸音材を設けたことにより、送風手段の下流側の吸音および消音効果を向上させることができ、前記送風手段が乾燥用空気を排気した直後の前記空気循環路を流れる風による騒音や前記送風手段の動作時の風切り音を効率的に低減する事ができる。   In the second invention, in particular, the air circulation path of the first invention is provided with a silencer on the exhaust side of the blowing means, and a sound absorbing material is provided on the inner surface of the silencer. The noise reduction effect can be improved, and the noise caused by the wind flowing through the air circulation path immediately after the air blowing means exhausts the drying air and the wind noise during operation of the air blowing means can be efficiently reduced. .

第3の発明は、特に、第1または第2の発明の空気循環路は、外槽からの振動伝達を抑制する伸縮自在な可撓接合部を設け、前記可撓接合部の内面に吸音材を設けたことにより、乾燥空気が前記可撓接合部を流れる時の風による騒音を低減させることができる。前記可撓接合部の空気循環路の断面は機能上、構造が複雑でさらに、伸縮性を持たせるため比較的他の位置の空気循環路に比べて厚みも薄くなっており、前記可撓接合部からは音が透過しやすく、より大きな騒音が発生しやすい。以上のことにより、前記可撓接合部の内面に吸音材を設けることで、より効果的に乾燥運転時の騒音を低減することができる。   In the third invention, in particular, the air circulation path of the first or second invention is provided with a stretchable flexible joint that suppresses vibration transmission from the outer tub, and a sound absorbing material is provided on the inner surface of the flexible joint. By providing, it is possible to reduce noise caused by wind when dry air flows through the flexible joint. The cross section of the air circulation path of the flexible joint is functionally complicated in structure, and has a relatively small thickness compared to the air circulation path at other positions in order to provide stretchability. Sound is easily transmitted from the part, and more noise is likely to be generated. As described above, the noise during the drying operation can be more effectively reduced by providing the sound absorbing material on the inner surface of the flexible joint.

第4の発明は、特に、第1〜第3のいずれかの発明の空気循環路は、内面に植毛を施したことにより、少ない設置スペースで空気循環路に吸音効果を得ることができ、空気循環路の断面積を確保することができる。   In the fourth aspect of the invention, in particular, the air circulation path of any one of the first to third aspects of the invention can obtain a sound absorption effect in the air circulation path with a small installation space by applying flocking on the inner surface. The cross-sectional area of the circulation path can be ensured.

第5の発明は、特に、第1〜第3のいずれかの発明の空気循環路は、内面に吸音材として、連続発泡体を設けたことにより、乾燥用空気が前記空気循環路を通る時の通気性を損なわず、風量を下げずに、吸音効果を得ることができる。また、前記連続発泡体は、固体を選別除去する効果もあるため、設ける位置によっては、乾燥運転時に空気循環路のリント(衣類の糸くず等)を除去するフィルターとしての効果も得られる。   According to a fifth aspect of the present invention, in particular, the air circulation path according to any one of the first to third aspects is provided when the drying air passes through the air circulation path by providing a continuous foam as a sound absorbing material on the inner surface. The sound absorption effect can be obtained without impairing the air permeability and without reducing the air volume. The continuous foam also has an effect of selecting and removing solids. Therefore, depending on the position of the continuous foam, an effect as a filter for removing lint (cloth waste, etc.) in the air circulation path during the drying operation can be obtained.

第6の発明は、特に、第5の発明の連続発泡体を着脱自在としたことにより、乾燥運転の繰り返しによって、連続発泡体の気泡部に溜まるリント等を取り除くことができるようになり、連続発泡体の吸音性能や、通気性の低下を解消することができる。   In the sixth aspect of the invention, in particular, by making the continuous foam of the fifth aspect of the invention removable, it becomes possible to remove lint and the like accumulated in the bubble portion of the continuous foam by repeating the drying operation. The sound absorption performance of the foam and the deterioration of air permeability can be eliminated.

以下、本発明の実施の形態について、図面を参照しながら説明する。なお、この実施の形態によって本発明が限定されるものではない。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(実施の形態1)
図1は、本発明の第1の実施の形態における洗濯乾燥機の断面図、図2は、空気循環路の拡大断面図を示すものである。洗濯機外枠30は、複数の引っ張りばね31と、2本のダンパー32により外槽33を弾性支持している。洗濯または乾燥対象物(以下、衣類という)34を収容する回転槽35は、外槽33内に回転自在に配設している。モータ(駆動手段)36は、ブラシレス直流モータから成っており、インバータ制御され、回転速度が自在に変化されるようになっている。そして、直接回転槽34を駆動する。
(Embodiment 1)
FIG. 1 is a sectional view of a washing / drying machine according to a first embodiment of the present invention, and FIG. 2 is an enlarged sectional view of an air circulation path. The washing machine outer frame 30 elastically supports the outer tub 33 by a plurality of tension springs 31 and two dampers 32. A rotating tub 35 for accommodating a washing or drying object (hereinafter referred to as clothing) 34 is rotatably arranged in the outer tub 33. The motor (driving means) 36 is composed of a brushless DC motor and is controlled by an inverter so that the rotational speed can be freely changed. Then, the rotating tank 34 is directly driven.

洗濯行程時に回転槽35に水を供給するための給水手段37、洗濯終了後に水を排水するための排水手段38が外槽33の底部に設けられている。さらに、乾燥行程時に、衣類乾燥のために空気を暖める熱源39と、熱源39によって加熱された空気を前記回転槽35内へ供給し、循環させる空気循環路40と、前記空気循環路40に乾燥用空気を送風する送風手段(ファン)41が設けられている。   A water supply means 37 for supplying water to the rotating tub 35 during the washing process and a drainage means 38 for draining water after the completion of washing are provided at the bottom of the outer tub 33. Further, during the drying process, a heat source 39 that warms the air for drying clothes, air heated by the heat source 39 is supplied into the rotating tub 35 and circulated, and the air circulation path 40 is dried. Blowing means (fan) 41 for blowing working air is provided.

制御装置42は、洗濯機外枠30の前面下部に設けられている。制御装置42は、洗濯機外枠30の前面上部に設けられた操作表示手段43により入力された設定内容に基づいて洗い、すすぎ、脱水、乾燥の各行程を逐次制御するもので、パワースイッチング手段(図示せず)を介してモータ36、給水手段37、排水手段38などを逐次制御する。   The control device 42 is provided at the lower front portion of the washing machine outer frame 30. The control device 42 sequentially controls each process of washing, rinsing, dehydration, and drying based on the setting contents input by the operation display means 43 provided on the upper front surface of the washing machine outer frame 30. The power switching means The motor 36, the water supply means 37, the drainage means 38, etc. are sequentially controlled via (not shown).

また、空気循環路40の一部(例えば、図1の40a)の内面には吸音材43を設けている。吸音材43としてはフェルト等を用いるとよい。吸音材43は図2に示すように空気循環路40の内面に接着する等して、固定すればよい。また、吸音材43による吸音効果を大きくするために、吸音材43の厚みを大きくする場合は、空気循環路40の断面積が小さくなり、その結果、空気循環路40を通る空気の風量が低下する可能性があるので、その場合は、空気循環路40の吸音材43を設けた部分の断面積を大きくすることで、風量が低下しないようにする。   A sound absorbing material 43 is provided on the inner surface of a part of the air circulation path 40 (for example, 40a in FIG. 1). A felt or the like may be used as the sound absorbing material 43. The sound absorbing material 43 may be fixed by bonding to the inner surface of the air circulation path 40 as shown in FIG. Further, when the thickness of the sound absorbing material 43 is increased in order to increase the sound absorbing effect by the sound absorbing material 43, the cross-sectional area of the air circulation path 40 is reduced, and as a result, the air flow rate through the air circulation path 40 is reduced. In this case, the air volume is prevented from decreasing by increasing the cross-sectional area of the portion of the air circulation path 40 where the sound absorbing material 43 is provided.

ここで、吸音材43を図1の40aに示す空気循環路40の位置、つまり、送風手段41の排気側に設けている理由について示す。送風手段41の排気側近傍は、乾燥用空気が空気循環路40を流れる時に発生する音だけでなく、送風手段41(例えばファン)が回転した時に発生する風切り音等も存在し、空気循環路40の他の位置に比べて、大きな騒音が発生する。よって、図1の40a付近に吸音効果を持たせることによって、その位置での騒音を低減する事で、乾燥運転時の騒音を効果的に低減することができる。   Here, the reason why the sound absorbing material 43 is provided at the position of the air circulation path 40 shown in 40a of FIG. In the vicinity of the exhaust side of the air blowing means 41, not only the sound generated when the drying air flows through the air circulation path 40, but also the wind noise generated when the air blowing means 41 (for example, a fan) rotates, the air circulation path. Compared to the other positions of 40, a loud noise is generated. Therefore, by providing a sound absorbing effect in the vicinity of 40a in FIG. 1, by reducing the noise at that position, it is possible to effectively reduce the noise during the drying operation.

以上のように構成された洗濯乾燥機について、以下その動作、作用を説明する。まず、回転槽35内に衣類と洗剤を投入後、操作表示手段43を操作して運転を開始する。これによって、給水手段37が動作し、回転槽35内に洗濯水が供給されると共に回転槽35も回転を開始する。規定量の洗濯水が供給されると給水手段37は給水を停止する。回転槽35の回転によって、洗剤は洗濯水に溶かされ、洗濯液となって衣類に浸透する。回転槽35は、30r/min程度の低速で回転して、衣類を持ち上げては落とすというたたき洗いを規定時間行う。   The operation and action of the washing / drying machine configured as described above will be described below. First, after putting clothes and detergent into the rotating tank 35, the operation display means 43 is operated to start operation. As a result, the water supply means 37 operates, the washing water is supplied into the rotating tub 35 and the rotating tub 35 also starts rotating. When the specified amount of washing water is supplied, the water supply means 37 stops water supply. By the rotation of the rotary tank 35, the detergent is dissolved in the washing water and becomes a washing liquid and penetrates into the clothes. The rotating tank 35 rotates at a low speed of about 30 r / min, and performs washing for a specified time to lift and drop the clothes.

洗濯終了後、排水手段38が作動し、汚れを溶かし込んだ洗濯液は、外槽33の外に排水される。排水終了後、回転槽35の回転は徐々に速くなり、脱水が行われる。   After the washing is finished, the drainage means 38 is operated, and the washing liquid in which the dirt is dissolved is drained out of the outer tub 33. After the drainage is completed, the rotation of the rotary tank 35 is gradually accelerated and dewatering is performed.

以上のように洗濯運転が終了すると、乾燥運転が開始する。乾燥行程ではモータ36により低速で回転槽35を回転駆動させ衣類34を攪拌しながら、送風手段41により空気は、空気循環路40を通って、熱源39(例えば、ヒータ)で加熱されて温風となり、回転槽35内へ送り込まれる。この温風は、衣類34の水分を奪った後、外槽33を内を通過して、空気循環路40へ至る。この時給水手段37によって、空気循環路40内には冷却水が注水されている。衣類34の水分を奪って湿気を含んだ温風がこの空気循環路40内を通過するとき、冷却水により冷却されて水分の結露が起こり、湿った空気は除湿されて再び送風手段41へ戻る。以上のように温風を循環させることにより、回転槽35内の衣類34を乾燥させることができる。   When the washing operation is completed as described above, the drying operation is started. In the drying process, while the rotating tub 35 is driven to rotate at a low speed by the motor 36 and the clothes 34 are agitated, the air is heated by the heat source 39 (for example, a heater) through the air circulation path 40 and heated by the air blowing means 41. Then, it is fed into the rotary tank 35. After the hot air has taken away moisture from the clothes 34, it passes through the outer tub 33 and reaches the air circulation path 40. At this time, cooling water is poured into the air circulation path 40 by the water supply means 37. When the warm air containing moisture from the clothes 34 deprives the moisture passes through the air circulation path 40, it is cooled by the cooling water to cause moisture condensation, and the moist air is dehumidified and returned to the blowing means 41 again. . By circulating the warm air as described above, the clothes 34 in the rotating tub 35 can be dried.

しかしながら、温風が空気循環路40を循環している時には、乾燥用空気がこの空気循環路40を流れることによって、空気循環路40から音が透過し、騒音が発生する。ここで、本発明で示しているように、空気循環路40の一部の内面に吸音材を設けることにより、空気循環路40を通過する風の音、あるいは図1の40aの位置に吸音材43を設けている場合は、送風手段41により発生する風切り音による騒音が効果的に低減される。   However, when warm air is circulating in the air circulation path 40, the drying air flows through the air circulation path 40, so that sound is transmitted from the air circulation path 40 and noise is generated. Here, as shown in the present invention, by providing a sound absorbing material on a part of the inner surface of the air circulation path 40, the sound absorbing material 43 is placed at the position 40a in FIG. In the case where it is provided, noise due to wind noise generated by the blowing means 41 is effectively reduced.

以上のように、本実施の形態においては、空気循環路40の内面に吸音材を設けたことにより、乾燥運転時に、乾燥用空気が空気循環路40を循環するときの風の流れる音の透過を少なくすることができ、騒音を低減することができる。   As described above, in the present embodiment, by providing the sound absorbing material on the inner surface of the air circulation path 40, transmission of the sound of wind flowing when the drying air circulates in the air circulation path 40 during the drying operation. Can be reduced, and noise can be reduced.

なお、吸音材は、必ずしも空気循環路の全てに設ける必要はなく、騒音が発生しやすい場所を特定し、その部分に吸音材を設ければよく、これにより所定の騒音低減効果が得られる。また、吸音材を設ける時には、空気循環路の断面積や形状の変化により、空気循環路を流れる風の風量が低下しないよう所定の風量が確保されるように設けられる。   The sound absorbing material does not necessarily have to be provided in all of the air circulation path, and a place where noise is likely to be generated is specified, and the sound absorbing material may be provided in that portion, thereby obtaining a predetermined noise reduction effect. Further, when the sound absorbing material is provided, it is provided so that a predetermined air volume is secured so that the air volume of the air flowing through the air circulation path does not decrease due to a change in the cross-sectional area or shape of the air circulation path.

(実施の形態2)
図3は、本発明の第2の実施の形態における洗濯乾燥機の構成図、図4は消音器の断面図である。本実施の形態では、図3に示すように送風手段41の排気側(図1の40aで示す位置)に消音器44を設けている。消音器44は、図4に示すように、管44aの途中に、管44aの断面積に比べて大きい断面積を持つ空洞部44bを設けた構造である。この様な消音器44では、次式に示すような消音効果を基本式として、騒音の低減効果が得られる。
減衰量=10log(1+1/4(m−1/m)2sinkl)[dB](1)
ここで、m=S/Sであり、管44aと空洞44bの断面積比である。(各文字は図4に示す。)kは波長定数、lは空洞部44bの長さである。
(Embodiment 2)
FIG. 3 is a configuration diagram of a washing / drying machine according to the second embodiment of the present invention, and FIG. 4 is a cross-sectional view of the silencer. In the present embodiment, as shown in FIG. 3, a silencer 44 is provided on the exhaust side of the air blowing means 41 (position indicated by 40a in FIG. 1). As shown in FIG. 4, the silencer 44 has a structure in which a hollow portion 44b having a cross-sectional area larger than the cross-sectional area of the tube 44a is provided in the middle of the tube 44a. In such a silencer 44, a noise reduction effect can be obtained based on a silence expression as shown in the following equation.
Attenuation = 10 log (1 + 1/4 (m−1 / m) 2 sin 2 kl) [dB] (1)
Here, m = S / S 0, which is the cross-sectional area ratio between the tube 44a and the cavity 44b. (Each character is shown in FIG. 4.) k is a wavelength constant and 1 is the length of the cavity 44b.

さらに、消音器44において、管44aと空洞部44bの断面積の差によってできる空洞部44cの内面に、吸音材45を設けることによって、吸音効果を向上させることができる。また、消音器44を送風手段41の排気側に設けた理由については、実施の形態1で示したとおりである。   Furthermore, in the silencer 44, the sound absorbing effect can be improved by providing the sound absorbing material 45 on the inner surface of the cavity 44c formed by the difference in cross-sectional area between the tube 44a and the cavity 44b. The reason why the silencer 44 is provided on the exhaust side of the air blowing means 41 is as described in the first embodiment.

以上のように、空気循環路40のうち、送風手段41の排気側の内面に吸音材45を備えた消音器44を設けることによって、乾燥運転時に発生する、空気循環路40を風が流れる時の騒音や、送風手段41による風切り音をより効果的に低減することができる。   As described above, when the wind flows through the air circulation path 40 generated during the drying operation by providing the silencer 44 having the sound absorbing material 45 on the inner surface of the air circulation path 40 on the exhaust side of the air circulation path 40. Noise and wind noise generated by the blowing means 41 can be more effectively reduced.

(実施の形態3)
図5は、本発明の第3の実施の形態における洗濯機の構成図、図6は、可撓接合部46の断面図である。本実施の形態において、脱水運転時に外槽33の振動が洗濯機外枠30に伝達しないように、空気循環路40には、伸縮自在な可撓接合部46が設けられており、可撓接合部46の内面に吸音材47を設けたものである。可撓接合部46として、例えば、伸縮自在な蛇腹ホースを用いる。具体的な構成は、図6に示すように、可撓接合部46のプリーツ形状部の内側に吸音材47を入れ、それが外れないように、可撓性の薄膜体48(例えばビニール等)を、吸音材47を覆うように、可撓接合部46の内面に接着している。その結果、まず薄膜体48による遮音効果が得られ、さらに、薄膜体48と可撓接合部46の内面との間に空洞部49が構成され、その空洞部49の空気層による遮音効果が得られるとともに、空洞部49の音は、その内部に設けられた吸音材47によって、さらに吸音される。また、このような構成で、可撓接合部46の可撓性がさらに必要な場合は、薄膜体48にスリット等を設けると、薄膜体48の可撓性が増し、その結果、可撓接合部46の可撓性も増す。
(Embodiment 3)
FIG. 5 is a configuration diagram of a washing machine according to the third embodiment of the present invention, and FIG. 6 is a cross-sectional view of the flexible joint 46. In the present embodiment, the air circulation path 40 is provided with a flexible joint 46 that can be expanded and contracted so that the vibration of the outer tub 33 is not transmitted to the washing machine outer frame 30 during the dehydration operation. A sound absorbing material 47 is provided on the inner surface of the portion 46. For example, an elastic bellows hose is used as the flexible joint 46. Specifically, as shown in FIG. 6, a sound absorbing material 47 is placed inside the pleat-shaped portion of the flexible joint 46, and a flexible thin film body 48 (for example, vinyl) is used so that it does not come off. Is bonded to the inner surface of the flexible joint 46 so as to cover the sound absorbing material 47. As a result, first, a sound insulation effect by the thin film body 48 is obtained, and further, a cavity 49 is formed between the thin film body 48 and the inner surface of the flexible joint 46, and a sound insulation effect by the air layer of the cavity 49 is obtained. At the same time, the sound of the cavity 49 is further absorbed by the sound absorbing material 47 provided therein. In addition, in this configuration, when the flexibility of the flexible joint portion 46 is further required, if the thin film body 48 is provided with a slit or the like, the flexibility of the thin film body 48 is increased. The flexibility of the portion 46 is also increased.

以上のような結果、可撓接合部46の可撓性を損なうことなく、乾燥運転時の可撓接合部からの騒音を低減することができる。下撓接合部46の空気循環路の断面は機能上、構造が複雑(断面積がプリーツ形状により一様でない)で、さらに、伸縮性を持たせるため比較的他の位置の空気循環路40に比べて厚みも薄くなっており、可撓接合部46からは音が透過しやすく、より大きな騒音が発生しやすい。そのため、可撓接合部46からの騒音を低減する事により、乾燥運転時の騒音をより効果的に低減する事ができる。   As a result as described above, noise from the flexible joint during the drying operation can be reduced without impairing the flexibility of the flexible joint 46. The cross section of the air circulation path of the lower flexure joint 46 is functionally complicated in structure (the cross-sectional area is not uniform due to the pleat shape), and further, the air circulation path 40 in a relatively different position is provided to provide stretchability. In comparison, the thickness is reduced, and sound is easily transmitted from the flexible joint portion 46, so that larger noise is likely to be generated. Therefore, by reducing the noise from the flexible joint 46, the noise during the drying operation can be more effectively reduced.

(実施の形態4)
本実施の形態では、空気循環路40の内面に植毛を施すことにより、空気循環路40に吸音効果を持たせたものである。構成図は図2と同様であり、吸音材43の部分が植毛部になっており、空気循環路40の内面に植毛を施して形成する。植毛は吸音材43を設ける時に比べて設置スペースが小さくて済み、空気循環路40の断面形状や、断面積の変化も元の空気循環路40と比べてもほとんどないため、乾燥空気の風量もほとんど変化せず、乾燥性能も維持することができる。
(Embodiment 4)
In the present embodiment, the air circulation path 40 has a sound absorbing effect by flocking the inner surface of the air circulation path 40. The configuration diagram is the same as FIG. 2, and the sound absorbing material 43 is a flocked portion, and is formed by flocking the inner surface of the air circulation path 40. Since flocking requires a smaller installation space than when the sound absorbing material 43 is provided, and there is almost no change in the cross-sectional shape or cross-sectional area of the air circulation path 40 compared to the original air circulation path 40, the air volume of the dry air is also large. Almost no change and drying performance can be maintained.

(実施の形態5)
図7は、本発明の第5の実施の形態における洗濯乾燥機の構成図である。本実施の形態においては、空気循環路40の内面に連続発泡体50を設けたものである。連続発泡体50は、実施の形態1で吸音材43を設けたのと同様に、空気循環路40の内面を覆うように設置する。連続発泡体50としては、食器洗い用のスポンジのようなものがある。連続発泡体50は、液体や空気を通過させ、かつ、音を吸収する効果や、固体を選別除去する効果等がある。このような特徴から、連続発泡体50を空気循環路40の内面に設けることによって、空気循環路40の通気性を維持したまま、吸音効果を得ることができる。
(Embodiment 5)
FIG. 7 is a configuration diagram of a washing / drying machine according to the fifth embodiment of the present invention. In the present embodiment, the continuous foam 50 is provided on the inner surface of the air circulation path 40. The continuous foam 50 is installed so as to cover the inner surface of the air circulation path 40 in the same manner as the sound absorbing material 43 is provided in the first embodiment. An example of the continuous foam 50 is a dishwashing sponge. The continuous foam 50 has an effect of allowing liquid and air to pass through and absorbing sound, an effect of selecting and removing solids, and the like. From such characteristics, by providing the continuous foam 50 on the inner surface of the air circulation path 40, it is possible to obtain a sound absorbing effect while maintaining the air permeability of the air circulation path 40.

また、図7の空気循環路40の40cで示す位置に設置することによって、乾燥運転時に空気循環路40を通るリント(衣類の糸くず等)を除去するフィルターとしての効果も得られる。通常、空気循環路40の40cの位置、つまり、乾燥空気が、衣類34が収容されている回転槽35から、空気循環路40に流れていく部分では、乾燥空気が、衣類34の水分や、糸くず等のリントを含んで空気循環路40に流れる。よって、このリントを空気循環路40の途中で除去する必要がある。通常洗濯機には空気循環路40の間にリントを取るフィルターが設置されている(図9のフィルター11で示す)。よって、連続発泡体50によって、リントを除去する効果も得られることは有効である。   Further, by installing the air circulation path 40 at a position indicated by 40c in FIG. 7, an effect as a filter for removing lint (cloth waste, etc.) passing through the air circulation path 40 during the drying operation can be obtained. Usually, at the position of the air circulation path 40c, that is, in the portion where the dry air flows from the rotating tub 35 in which the clothes 34 are stored to the air circulation path 40, the dry air is absorbed by moisture in the clothes 34, It flows into the air circulation path 40 including lint such as lint. Therefore, it is necessary to remove this lint in the middle of the air circulation path 40. Normally, a washing machine is provided with a filter for removing lint between the air circulation paths 40 (indicated by the filter 11 in FIG. 9). Therefore, it is effective that the effect of removing lint is obtained by the continuous foam 50.

さらに、本実施の形態では、図8に示すように、連続発泡体50を空気循環路40に対して着脱自在な構造としている。図8は図7の空気循環路40の40cの位置を拡大したものである。着脱自在とすることによって、連続発泡体50の気泡部分に溜まるリントを除去できるようになり、リントが溜まることによって、連続発泡体50の吸音性能が損なわれたり、通気性が低下しないようにする。図8に示すように、筐体30の天面を開放できるようにしておき、そこから、空気循環路40の40cの位置も一部開放できるようにしておき、連続発泡体50を取り外しできるようにしている。   Further, in the present embodiment, as shown in FIG. 8, the continuous foam 50 is structured to be detachable from the air circulation path 40. FIG. 8 is an enlarged view of the position of 40c in the air circulation path 40 of FIG. By making it detachable, it becomes possible to remove lint accumulated in the bubble portion of the continuous foam 50, and the lint accumulation prevents the sound absorption performance of the continuous foam 50 from being impaired or the air permeability from being lowered. . As shown in FIG. 8, the top surface of the housing 30 can be opened, and the position of 40 c of the air circulation path 40 can be partially opened therefrom, so that the continuous foam 50 can be removed. I have to.

以上のように、本発明にかかる洗濯乾燥機は、衣類乾燥時の乾燥性能を低下させることなく、騒音性能を向上することができ、洗濯乾燥機等の用途に有用である。   As described above, the washing / drying machine according to the present invention can improve the noise performance without deteriorating the drying performance when clothes are dried, and is useful for uses such as a washing / drying machine.

本発明の実施の形態1における洗濯乾燥機の構成図Configuration diagram of the washing and drying machine in Embodiment 1 of the present invention (a)同洗濯乾燥機の空気循環路の横断面図(b)同空気循環路の縦断面図(A) Cross-sectional view of the air circulation path of the washer / dryer (b) Vertical cross-sectional view of the air circulation path 本発明の実施の形態2における洗濯乾燥機の構成図Configuration diagram of a washing and drying machine in Embodiment 2 of the present invention 同洗濯乾燥機の消音器の断面図Cross section of the silencer of the washer / dryer 本発明の実施の形態3における洗濯乾燥機の構成図The block diagram of the washing-drying machine in Embodiment 3 of this invention (a)同洗濯乾燥機の可撓接合部の横断面図(b)同可撓接合部の縦断面図(A) Cross-sectional view of the flexible joint of the washing / drying machine (b) Vertical cross-sectional view of the flexible joint 本発明の実施の形態5における洗濯乾燥機の構成図Configuration diagram of a washing and drying machine in Embodiment 5 of the present invention 同洗濯乾燥機の要部拡大断面図Main section enlarged cross-sectional view of the washing and drying machine 従来の洗濯乾燥機の構成図Configuration diagram of a conventional washing and drying machine

符号の説明Explanation of symbols

30 洗濯機外枠
33 外槽
35 回転槽
36 駆動手段
39 熱源
40 空気循環路
41 送風手段
43 吸音材
44 消音器
46 可撓接合部
DESCRIPTION OF SYMBOLS 30 Washing machine outer frame 33 Outer tub 35 Rotating tub 36 Driving means 39 Heat source 40 Air circulation path 41 Blowing means 43 Sound absorbing material 44 Silencer 46 Flexible joint

Claims (6)

洗濯機外枠に弾性支持された外槽と、前記外槽内に回転可能に設けられた回転槽と、前記回転槽を回転させる駆動手段と、衣類乾燥のために空気を暖める熱源と、前記熱源によって加熱された空気を前記回転槽内へ供給し、前記熱源との間を循環させる空気循環路と、前記空気循環路に乾燥用空気を送風する送風手段とを備え、前記空気循環路の内面に吸音材を設けた洗濯乾燥機。 An outer tub elastically supported by the outer frame of the washing machine, a rotating tub rotatably provided in the outer tub, a driving means for rotating the rotating tub, a heat source for warming air for drying clothes, An air circulation path for supplying air heated by a heat source into the rotary tub and circulating between the heat source and a blowing means for blowing drying air to the air circulation path; A washing and drying machine with sound absorbing material on the inner surface. 空気循環路は、送風手段の排気側に消音器を設け、前記消音器の内面に吸音材を設けた請求項1記載の洗濯乾燥機。 The washing / drying machine according to claim 1, wherein the air circulation path is provided with a silencer on the exhaust side of the blowing means, and a sound absorbing material is provided on an inner surface of the silencer. 空気循環路は、外槽からの振動伝達を抑制する伸縮自在な可撓接合部を設け、前記可撓接合部の内面に吸音材を設けた請求項1または2記載の洗濯乾燥機。 The washing / drying machine according to claim 1 or 2, wherein the air circulation path is provided with a stretchable flexible joint that suppresses vibration transmission from the outer tub, and a sound absorbing material is provided on an inner surface of the flexible joint. 空気循環路は、内面に植毛を施した請求項1〜3のいずれか1項に記載の洗濯乾燥機。 The washing / drying machine according to any one of claims 1 to 3, wherein the air circulation path has a flocked inner surface. 空気循環路は、内面に吸音材として、連続発泡体を設けた請求項1〜3いずれか1項に記載の洗濯乾燥機。 The washing / drying machine according to any one of claims 1 to 3, wherein the air circulation path is provided with a continuous foam on the inner surface as a sound absorbing material. 連続発泡体は、着脱自在とした請求項5記載の洗濯乾燥機。 The washing / drying machine according to claim 5, wherein the continuous foam is detachable.
JP2006146393A 2006-05-26 2006-05-26 Washing drying machine Pending JP2007313063A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014133031A (en) * 2013-01-11 2014-07-24 Toshiba Corp Clothes dryer
EP2843119A1 (en) * 2013-08-30 2015-03-04 Electrolux Appliances Aktiebolag Laundry appliance having overheating preventing system
DE102018212844A1 (en) * 2018-08-01 2020-02-06 BSH Hausgeräte GmbH Household appliance with improved acoustics
CN111101353A (en) * 2020-01-09 2020-05-05 珠海格力电器股份有限公司 Clothes dryer

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JPH04126661A (en) * 1990-09-19 1992-04-27 Hitachi Ltd Structure of interior material for rolling stock
JPH07293372A (en) * 1994-04-28 1995-11-07 Toyoda Gosei Co Ltd Air intake hose
JPH09217955A (en) * 1996-02-09 1997-08-19 Kucho Giken Kogyo Kk Sound absorbing flexible duct
JPH10318594A (en) * 1997-05-16 1998-12-04 Mitsubishi Heavy Ind Ltd Hybrid type silincer for assembly type duct
JP2000297887A (en) * 1999-04-14 2000-10-24 Sekisui Chem Co Ltd Composite pipe
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JP2005324771A (en) * 2004-04-16 2005-11-24 Honda Motor Co Ltd Battery cooling system

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JPH04126661A (en) * 1990-09-19 1992-04-27 Hitachi Ltd Structure of interior material for rolling stock
JPH07293372A (en) * 1994-04-28 1995-11-07 Toyoda Gosei Co Ltd Air intake hose
JPH09217955A (en) * 1996-02-09 1997-08-19 Kucho Giken Kogyo Kk Sound absorbing flexible duct
JPH10318594A (en) * 1997-05-16 1998-12-04 Mitsubishi Heavy Ind Ltd Hybrid type silincer for assembly type duct
JP2000297887A (en) * 1999-04-14 2000-10-24 Sekisui Chem Co Ltd Composite pipe
JP2003305292A (en) * 2002-04-15 2003-10-28 Matsushita Electric Ind Co Ltd Washing and drying machine
JP2005324771A (en) * 2004-04-16 2005-11-24 Honda Motor Co Ltd Battery cooling system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014133031A (en) * 2013-01-11 2014-07-24 Toshiba Corp Clothes dryer
EP2843119A1 (en) * 2013-08-30 2015-03-04 Electrolux Appliances Aktiebolag Laundry appliance having overheating preventing system
DE102018212844A1 (en) * 2018-08-01 2020-02-06 BSH Hausgeräte GmbH Household appliance with improved acoustics
CN111101353A (en) * 2020-01-09 2020-05-05 珠海格力电器股份有限公司 Clothes dryer

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