JP2007195866A - Washing machine and washing method thereof - Google Patents

Washing machine and washing method thereof Download PDF

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Publication number
JP2007195866A
JP2007195866A JP2006020504A JP2006020504A JP2007195866A JP 2007195866 A JP2007195866 A JP 2007195866A JP 2006020504 A JP2006020504 A JP 2006020504A JP 2006020504 A JP2006020504 A JP 2006020504A JP 2007195866 A JP2007195866 A JP 2007195866A
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water
washing
ozone
saving
detergent
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Inventor
Toshifumi Koike
敏文 小池
Yosuke Nagano
洋介 永野
Hiroshi Osugi
寛 大杉
Isao Hiyama
功 檜山
Toshihiro Sato
俊博 佐藤
Yoichi Kumano
陽一 熊野
Seiji Minagawa
政治 皆川
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Hitachi Engineering and Services Co Ltd
Hitachi Appliances Inc
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Hitachi Engineering and Services Co Ltd
Hitachi Appliances Inc
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Priority to JP2006020504A priority Critical patent/JP2007195866A/en
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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

<P>PROBLEM TO BE SOLVED: To provide a washing machine capable of saving water without using a detergent, and capable of saving water when the detergent is used as well. <P>SOLUTION: The washing machine comprises an outer tub 2 for storing washing water inside an outer frame 1, a washing/spinning tub 3 for storing the laundry inside the outer tub, and a water saving tub 4 for temporarily storing drain water from the outer tub 2. Water softened by a water softening device 5 is fed to the outer tub 2, and the softened water is heated with steam to hot water. In the washing without using the detergent, a pump 21 is operated, water is circulated from the water saving tub 4 via the outer tub 2 to return to the water saving tub 4, and ozone fine bubbles generated in a fine bubble generating device 22 are fed into the circulated water for washing. On the other hand, in the washing using the detergent, water in the water saving tub 4 is circulated in the washing process by the pump 21, and ozone fine bubbles generated in the fine bubble generating device 22 are mixed in the circulated water to make ozone water. The ozone water is used for rinsing. The final rinsing water is drained and stored in the water saving tub 4 for the next washing. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、洗濯機およびその洗濯方法に関する。   The present invention relates to a washing machine and a washing method thereof.

地球環境保護の観点から、ドライクリーニングからウエットクリーニング（水洗濯）への移行が急速に進んでいる。   From the viewpoint of protecting the global environment, the transition from dry cleaning to wet cleaning (water washing) is rapidly progressing.

しかし、水洗濯では、洗剤が必要で、洗濯排水に含まれる洗剤が環境へ与える影響についても考慮する必要がある。特に、業務用や発電所用の洗濯機では、排水規制が厳しく、排水処理を行っているが、処理設備の設置、処理時間やランニングコストの増加等の懸念があった。   However, water washing requires a detergent, and it is also necessary to consider the environmental impact of the detergent contained in the laundry drainage. In particular, washing machines for business use and power plants have strict drainage regulations and perform wastewater treatment. However, there are concerns such as installation of treatment equipment, increase in treatment time and running cost.

また、洗剤を使用するため、すすぎを行う必要があり、洗濯使用水量の低減にも限界があった。さらに、すすぎを行うために洗濯時間が長くなるという問題があった。   Moreover, since a detergent is used, it is necessary to perform rinsing, and there is a limit in reducing the amount of water used for washing. Furthermore, there is a problem that the washing time becomes long for rinsing.

洗剤の使用量を少なくした洗濯機として、微細気泡を使用した洗濯機やオゾン水を使用した洗濯機が提案されている。微細気泡の作用により、洗濯機の機械作用や洗剤の使用量を低減したものである。   As washing machines that reduce the amount of detergent used, washing machines that use fine bubbles and washing machines that use ozone water have been proposed. By the action of fine bubbles, the machine action of the washing machine and the amount of detergent used are reduced.

また、オゾン水を使用することにより、洗剤の使用量やすすぎ水量を低減したものである。   Moreover, the amount of detergent used and the amount of excess water are reduced by using ozone water.

しかし、いずれの場合も洗剤は必要で、真に環境への影響を考慮すると、洗剤を使用しないほうが好ましい。また、微細気泡は、その気液界面に洗剤（界面活性剤）が吸着するため、洗濯水の洗剤濃度が低下し、洗浄力が低下してしまうという問題がある。   However, in any case, a detergent is necessary, and it is preferable not to use a detergent in consideration of the environmental impact. In addition, since fine bubbles are adsorbed by a detergent (surfactant) at the gas-liquid interface, there is a problem that the detergent concentration of washing water is lowered and the cleaning power is lowered.

また、オゾン水も洗剤に影響を及ぼし、洗剤が変質、分解するため、洗浄力が低下してしまう。   Further, ozone water also affects the detergent, and the detergent is deteriorated and decomposed, so that the cleaning power is reduced.

また、使用水量を低減するために、節水タンクを設けた洗濯機が提案されている。これは、すすぎの排水を一旦節水タンクに溜めておき、次回の洗濯にこの水を再利用し節水効果を高めたものである。   In order to reduce the amount of water used, a washing machine provided with a water-saving tank has been proposed. In this case, the rinse drainage is temporarily stored in a water-saving tank, and this water is reused for the next washing to enhance the water-saving effect.

しかし、節水タンクに溜めたまま放置すると、排水中に残留している有機物が腐食し、臭気を発生する場合がある。   However, if left in the water-saving tank, the organic matter remaining in the wastewater may corrode and generate odor.

特開２００２−３０６８８６号公報（特許文献１）では、微細気泡発生・循環装置を備え、洗濯槽に微細気泡を導入し、洗濯槽を基本的に静止状態として、布傷みを押えた洗濯を行う。また、軟水を使用し洗剤の使用量を低減する。   Japanese Patent Laid-Open No. 2002-306886 (Patent Document 1) includes a microbubble generation / circulation device, introduces microbubbles into a washing tub, and makes the washing tub basically stationary to perform washing while suppressing cloth damage. . Also, use soft water to reduce the amount of detergent used.

特開平１１−２６７３９１号公報（特許文献２）では、洗濯水に微細気泡を大量に噴流混合し、洗濯機の攪拌機構を不要とし、洗剤の使用量を低減する。   In Japanese Patent Application Laid-Open No. 11-267391 (Patent Document 2), a large amount of fine bubbles are jet-mixed in the washing water, the stirring mechanism of the washing machine is unnecessary, and the amount of detergent used is reduced.

特開平４−２４４１９８号公報（特許文献３）では、オゾン水と洗剤を含む洗浄液を用いて洗濯をし、洗剤やすすぎ水量を低減する。   In JP-A-4-244198 (Patent Document 3), washing is performed using a cleaning liquid containing ozone water and a detergent to reduce the amount of detergent and rinsing water.

特開平６−１５４４６２号公報（特許文献４）では、すすぎ工程の排水を回収して節水タンクに貯留しておき、次回の予洗水、本洗水などに再利用し、使用水量を低減する。   In JP-A-6-154462 (Patent Document 4), waste water from the rinsing process is collected and stored in a water-saving tank, and reused for the next prewash water, main wash water, and the like to reduce the amount of water used.

特開２００２−３０６８８６号公報JP 2002-306886 A 特開平１１−２６７３９１号公報Japanese Patent Laid-Open No. 11-267391 特開平４−２４４１９８号公報JP-A-4-244198 特開平６−１５４４６２号公報JP-A-6-154462

上述のように、従来の微細気泡やオゾン水を使用した洗濯機では、洗剤の使用量を低減しているが、洗剤と併用すると洗剤の働きを阻害する作用が微細気泡やオゾン水が有しており、十分な洗浄力が得られないという問題があった。   As described above, in conventional washing machines using fine bubbles and ozone water, the amount of detergent used is reduced, but when used in combination with detergent, the fine bubbles and ozone water have an action that inhibits the function of the detergent. There was a problem that sufficient detergency could not be obtained.

また、貯水タンクを備えた洗濯機では、すすぎ排水を節水タンクに溜めて放置すると、排水中に残留している有機物が腐食し、節水タンク内に付着し臭気を発生する場合がある。夏場には特に顕著であるが、気温が低い場合でも使用を繰り返すことで臭気が発生する場合がある。この臭気が洗濯物に付着し洗濯品質を下げるという問題があった。   In addition, in a washing machine equipped with a water storage tank, if rinse water is stored in a water-saving tank and left to stand, organic matter remaining in the water may corrode and adhere to the water-saving tank and generate odor. Although particularly noticeable in summer, odor may be generated by repeated use even when the temperature is low. There is a problem that this odor adheres to the laundry and lowers the washing quality.

本発明の目的は、このような問題を解決して、洗剤を使用せずに洗浄力を確保するとともに、節水や環境への負荷を低減することにある。また、節水タンク内に臭気が発生するのを防止することにある。   An object of the present invention is to solve such a problem, to ensure cleaning power without using a detergent, and to reduce load on water and the environment. Another object is to prevent the generation of odor in the water-saving tank.

本発明は、外枠に内置され、洗濯水を溜める外槽と、この外槽に内置かれ、洗濯物を収容する洗濯兼脱水槽と、前記外槽に供給する水を貯溜する節水槽とを備えた洗濯機において、前記外槽と前記節水槽へ水を供給する給水手段と、前記給水手段に設けた軟水化装置と、前記外槽へ供給する水または外槽に溜まる水を加熱する加熱装置と、前記外槽の水を前記節水槽へ排水する排水経路と、前記節水槽の水を前記外槽へ供給する貯水供給経路と、前記節水槽内の水を循環する貯水循環経路と、前記節水槽内の水を前記貯水供給経路と前記貯水循環経路に供給するポンプと、前記ポンプから吐出された水に微細気泡を混入させる微細気泡発生装置と、前記微細気泡発生装置にオゾンを供給するオゾン発生装置とを備えたことを特徴とする。   The present invention includes an outer tub placed in an outer frame for storing washing water, a washing / dehydrating tub placed in the outer tub for storing laundry, and a water-saving tub for storing water supplied to the outer tub. In the washing machine provided, water supply means for supplying water to the outer tub and the water-saving tank, a water softening device provided in the water supply means, and heating for heating water supplied to the outer tub or water accumulated in the outer tub A drainage path for draining water from the outer tank to the water-saving tank, a water supply supply path for supplying water from the water-saving tank to the outer tank, a water storage circulation path for circulating the water in the water-saving tank, A pump that supplies water in the water-saving tank to the water storage supply path and the water storage circulation path, a fine bubble generator that mixes fine bubbles into the water discharged from the pump, and ozone to the fine bubble generator And an ozone generating device.

また、洗剤使用コースと洗剤なしコース（洗剤未使用）を備え、洗剤なしコースが選択された場合は、洗濯水として軟水化した温水を使用し、前記ポンプで前記節水槽内の水を前記貯水供給経路から外槽に供給し、前記排水経路から前記節水槽に戻るように循環し、該循環水中に前記微細気泡発生装置でオゾン微細気泡を混入させることを特徴とする。   In addition, when a course using a detergent and a course without a detergent (no detergent used) are selected and the course without a detergent is selected, warm water softened as washing water is used, and the water stored in the water-saving tank is stored in the water storage by the pump. Supplying from the supply path to the outer tank, circulating from the drain path to return to the water-saving tank, and ozone fine bubbles are mixed in the circulating water by the fine bubble generator.

また、洗剤使用コースと洗剤なしコース（洗剤未使用）を備え、洗剤使用コースが選択された場合は、洗い工程中に前記節水槽内に軟水を貯水し、前記ポンプで前記節水槽内の水を前記貯水循環経路で循環し、該循環水中に前記微細気泡発生装置でオゾン微細気泡を混入させ、前記節水槽内でオゾン水を生成し、該オゾン水をすすぎに使用するように構成する。   In addition, when a course using detergent and a course without detergent (no detergent used) are selected, soft water is stored in the water-saving tank during the washing process, and the water in the water-saving tank is stored by the pump. Is circulated in the water storage circulation path, ozone fine bubbles are mixed in the circulating water by the fine bubble generator, ozone water is generated in the water-saving tank, and the ozone water is used for rinsing.

また、最後のすすぎで使用した水を前記節水槽に貯水し、前記ポンプで前記節水槽内の水を前記貯水循環経路で循環し、該循環水中に前記微細気泡発生装置でオゾン微細気泡を混入し除菌した後に次回の洗濯水に使用することを特徴とする。   Also, the water used in the last rinse is stored in the water-saving tank, the water in the water-saving tank is circulated in the water storage circulation path by the pump, and ozone fine bubbles are mixed in the circulating water by the fine bubble generator. It is characterized by being used for the next wash water after sterilization.

さらに、洗濯水として温水および軟水を使用する洗濯方法において、前記洗濯水にオゾン微細気泡を混入した洗剤未使用（洗剤なし）の洗濯液を洗濯に使用することを特徴とする。   Further, in the washing method using warm water and soft water as washing water, a detergent-free (no detergent) washing liquid in which ozone fine bubbles are mixed in the washing water is used for washing.

このように構成した洗濯機は、軟水化した温水にオゾン微細気泡が混入した水を洗濯に使用している。軟水は、硬度成分を含んでいないため、負に帯電している水中の繊維や汚れに硬度成分が吸着することがない。   The washing machine configured in this manner uses water in which ozone fine bubbles are mixed in warm water softened for washing. Since soft water does not contain a hardness component, the hardness component does not adsorb to fibers or dirt in water that is negatively charged.

また、皮脂汚れのような油汚れと硬度成分が結合し水に不溶化することがない。このため、汚れ落ちを阻害する要因を排除できる。   In addition, oil stains such as sebum stains and hardness components do not bind and become insoluble in water. For this reason, the factor which inhibits dirt removal can be excluded.

また、温水は、皮脂汚れのような油汚れが流動化し、汚れを落ちやすくする。微細気泡は、崩壊する時に圧力波を生じ、これによる洗浄効果を有している。   Also, warm water fluidizes oil stains such as sebum stains and facilitates removal of the stains. The fine bubbles generate a pressure wave when they collapse, and have a cleaning effect.

従って、軟水と温水と微細気泡を併用することで、汚れを衣類から効率良く落とすことができ、洗剤を使用しなくても洗濯が可能となる。このため、すすぎを行う必要がなくなり、洗濯に使用する水量を大幅に低減できる。   Therefore, by using soft water, warm water, and fine bubbles in combination, dirt can be efficiently removed from the clothes, and washing can be performed without using a detergent. For this reason, it is not necessary to perform rinsing, and the amount of water used for washing can be greatly reduced.

また、微細気泡は、気液界面に水中の不純物を吸着、浮上させ水を浄化する作用があり、衣類から落ちた汚れを微細気泡が吸着し、汚れが衣類に再付着することを防ぐことができる。   In addition, the fine bubbles have the action of adsorbing and floating water impurities at the gas-liquid interface to purify the water. it can.

また、オゾンは非常に酸化力が強く、有害物質を分解し、殺菌や消臭作用を有しているため、洗濯物の殺菌、消臭が行える。   In addition, ozone has a very strong oxidizing power, decomposes harmful substances, and has a sterilizing and deodorizing action, so that the laundry can be sterilized and deodorized.

また、洗剤を使用する洗濯において、洗い工程中に節水槽内でオゾン水を生成できるため、オゾン水生成のために特別に時間を設ける必要がなく洗濯時間が長くなることがない。   Further, in washing using a detergent, ozone water can be generated in the water-saving tank during the washing process, so that it is not necessary to provide special time for generating ozone water, and the washing time does not become long.

これは、微細気泡は気体の溶解効率が高いため、オゾン微細気泡が効率良く水に溶解しオゾン水を生成できるからである。さらに、節水槽内に一旦貯水したすすぎ水中にオゾン微細気泡を混入することで、すすぎ水中に残留していた有機物が分解され、節水槽内に臭気が生じることがない。   This is because fine bubbles have high gas dissolution efficiency, so that ozone fine bubbles can be efficiently dissolved in water to generate ozone water. Furthermore, by mixing ozone fine bubbles into the rinsing water once stored in the water-saving tank, the organic matter remaining in the rinsing water is decomposed and odor is not generated in the water-saving tank.

さらに、節水槽に溜めた水を次回の洗濯に使用することで節水が可能で、かつ臭いが洗濯物に付着することもない。   Furthermore, water stored in the water-saving tank can be used for the next washing, so that water can be saved and no odor is attached to the laundry.

以下、本発明の実施例について、図面に沿って説明する。   Embodiments of the present invention will be described below with reference to the drawings.

以下、本発明の一実施例について、図１〜３を参照し説明する。   Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

図１は、本実施例の洗濯機の全体構成を示す概略図である。図において、１は洗濯機の外枠体、２は洗濯水（洗い水、すすぎ水）を収容する円筒状の外槽、３は洗濯物を収容する円筒状の洗濯兼脱水槽で表面に多数の貫通穴を有しており、外槽２の中に正逆方向に回転自在に支持されている。   FIG. 1 is a schematic diagram showing the overall configuration of the washing machine of this embodiment. In the figure, 1 is an outer frame of a washing machine, 2 is a cylindrical outer tub for storing washing water (washing water, rinsing water), and 3 is a cylindrical washing / dehydration tub for storing laundry on the surface. Through-holes and are supported in the outer tub 2 so as to be freely rotatable in forward and reverse directions.

４は外枠体１の下部に設けた節水槽である。節水槽４は、少なくとも洗いまたはすすぎ時に外槽２に供給する水量以上の内容積を有している。   4 is a water-saving tank provided in the lower part of the outer frame 1. The water-saving tank 4 has an internal volume that is at least equal to the amount of water supplied to the outer tank 2 at the time of washing or rinsing.

５は水道等からの給水配管、６は水中の硬度成分を除去する軟水化装置、７は軟水化装置からの軟水供給配管、８は給水弁、９は外槽２への軟水供給配管Ａである。１１は軟水供給配管Ｂで、軟水供給配管７から分岐し給水切換弁１０を介して貯水タンク４内に開口している。   5 is a water supply pipe from a water supply or the like, 6 is a water softening device that removes hardness components in water, 7 is a soft water supply pipe from the water softening device, 8 is a water supply valve, and 9 is a soft water supply pipe A to the outer tub 2 is there. Reference numeral 11 denotes a soft water supply pipe B which branches from the soft water supply pipe 7 and opens into the water storage tank 4 through a water supply switching valve 10.

給水手段は、給水配管５、軟水供給配管Ｂ１１、給水切換弁１０を含む。   The water supply means includes a water supply pipe 5, a soft water supply pipe B11, and a water supply switching valve 10.

１２は洗剤供給装置、１３は洗剤供給配管で、外槽２に接続されている。洗剤供給配管１３の途中には洗剤供給弁１４が設けてある。給水弁８を開くと、給水配管５からの水は、軟水化装置６で軟水化され、軟水供給配管７を通り、軟水供給配管Ａ９から外槽２へ供給される。   A detergent supply device 12 and a detergent supply pipe 13 are connected to the outer tub 2. A detergent supply valve 14 is provided in the middle of the detergent supply pipe 13. When the water supply valve 8 is opened, the water from the water supply pipe 5 is softened by the water softening device 6, passes through the soft water supply pipe 7, and is supplied from the soft water supply pipe A 9 to the outer tub 2.

この時、洗剤供給弁１４を開くと、洗剤供給装置１２から洗剤が外槽２内へ供給される。また、給水切換弁１０を開くと、軟水供給配管Ｂ１１から節水槽４に軟水が供給される。   At this time, when the detergent supply valve 14 is opened, the detergent is supplied from the detergent supply device 12 into the outer tub 2. When the water supply switching valve 10 is opened, soft water is supplied from the soft water supply pipe B11 to the water saving tank 4.

１５は蒸気供給装置（図示せず）からの蒸気供給配管で、外槽２に接続されている。外槽２内に供給された蒸気は、外槽２内の水や洗濯兼脱水槽３内の洗濯物を温める。   Reference numeral 15 denotes a steam supply pipe from a steam supply device (not shown), which is connected to the outer tub 2. The steam supplied into the outer tub 2 warms the water in the outer tub 2 and the laundry in the washing / dehydrating tub 3.

１６は外槽２の底部に接続した排水配管Ａ、１７は排水弁、１８は洗濯機外へ洗濯水を導く排水管である。１９は節水槽４への排水配管Ｂで、排水配管Ａ１６から分岐し、排水切換弁２０を介して節水槽４内に開口している。   16 is a drain pipe A connected to the bottom of the outer tub 2, 17 is a drain valve, and 18 is a drain pipe that guides wash water to the outside of the washing machine. A drain pipe B to the water saving tank 4 is branched from the drain pipe A 16 and opens into the water saving tank 4 through the drain switching valve 20.

排水経路は、排水配管Ａ１６、排水切換弁２０、排水配管Ｂを含む。   The drainage path includes a drainage pipe A16, a drainage switching valve 20, and a drainage pipe B.

外槽２内の洗濯水は、排水弁１７を開くことで排水管１８から洗濯機外へ排水され、排水切換弁２０を開くことで排水配管Ｂ１９から節水槽４に溜められる。   The washing water in the outer tub 2 is drained from the drain pipe 18 to the outside of the washing machine by opening the drain valve 17, and is stored in the water-saving tank 4 from the drain pipe B 19 by opening the drain switching valve 20.

２１はポンプ、２２は微細気泡発生装置、２３は微細気泡発生装置で生成した微細気泡混入水の吐出配管で、循環切換弁Ａ２４を介して微細気泡供給配管２５で外槽２の底部に接続されている。   21 is a pump, 22 is a fine bubble generator, 23 is a discharge pipe for fine bubble mixed water generated by the fine bubble generator, and is connected to the bottom of the outer tub 2 by a fine bubble supply pipe 25 via a circulation switching valve A24. ing.

貯水供給経路は、ポンプ２１、微細気泡混入水の吐出配管２３、循環切換弁Ａ２４、微細気泡供給配管２５を含む。   The water storage supply path includes a pump 21, a fine bubble mixed water discharge pipe 23, a circulation switching valve A 24, and a fine bubble supply pipe 25.

２７は微細気泡混入水の循環配管で、吐出配管２３から分岐し、循環切換弁Ｂ２６を介して節水槽４内に開口している。３４は節水槽４内に設けたストレーナで、排水配管Ｂ１９の開口端とポンプ２１の間に位置している。ストレーナ３４は着脱可能になっており、ストレーナの清掃、メンテナンスが容易に行えるようになっている。   Reference numeral 27 denotes a circulation pipe for fine-bubble mixed water, which branches from the discharge pipe 23 and opens into the water-saving tank 4 through a circulation switching valve B26. A strainer 34 is provided in the water-saving tank 4 and is located between the open end of the drain pipe B19 and the pump 21. The strainer 34 is detachable so that the strainer can be easily cleaned and maintained.

貯水循環経路は、微細気泡混入水の循環配管２７、ポンプ２１、微細気泡発生装置２２、吐出配管２３、循環切換弁Ｂ２６を含む。   The water storage circulation path includes a circulation pipe 27 for fine bubble-mixed water, a pump 21, a fine bubble generator 22, a discharge pipe 23, and a circulation switching valve B26.

２８は空気吸込み管、２９はオゾンガス発生装置、３０はオゾンガス供給配管である。オゾンガス供給配管３０は、微細気泡発生装置２２に接続されている。微細気泡発生装置２２は、流体が流れると流体力で内部に負圧が発生するようになっており、この負圧部分にオゾンガス供給配管３０が開口している。   28 is an air suction pipe, 29 is an ozone gas generator, and 30 is an ozone gas supply pipe. The ozone gas supply pipe 30 is connected to the fine bubble generator 22. When the fluid flows, the fine bubble generating device 22 generates a negative pressure by a fluid force, and an ozone gas supply pipe 30 is opened in the negative pressure portion.

ポンプ２１を運転し、循環切換弁Ａ２４を開くと、節水槽４内の水は、微細気泡発生装置２２を通り、外槽２内へ供給される。微細気泡発生装置２２で空気吸込み管から吸気した気体が微細化されるため、水は、微細気泡混入水となる。   When the pump 21 is operated and the circulation switching valve A24 is opened, the water in the water-saving tank 4 is supplied into the outer tank 2 through the fine bubble generator 22. Since the gas sucked from the air suction pipe is refined by the fine bubble generator 22, the water becomes the fine bubble mixed water.

この時、排水切換弁２０を開くと、外槽２内の水が節水槽４内へ戻り、節水槽４と外槽２内を水が循環する。外槽２から戻った水に含まれる糸くずや異物は、ストレーナ３４で除去され、ポンプ２１に吸込まれることはない。   At this time, when the drainage switching valve 20 is opened, the water in the outer tub 2 returns to the water-saving tub 4 and the water circulates in the water-saving tub 4 and the outer tub 2. Lint and foreign matter contained in the water returned from the outer tub 2 are removed by the strainer 34 and are not sucked into the pump 21.

ポンプ２１を運転し、循環切換弁Ｂ２６を開くと、節水槽４内の水は循環配管２７を通り節水槽４に戻り、節水槽４内の水が循環する。この場合も微細気泡発生装置２２により微細気泡が循環水中に混入し、節水槽４内は微細気泡混入水で満たされる。   When the pump 21 is operated and the circulation switching valve B26 is opened, the water in the water-saving tank 4 returns to the water-saving tank 4 through the circulation pipe 27, and the water in the water-saving tank 4 circulates. Also in this case, the fine bubbles are mixed into the circulating water by the fine bubble generator 22 and the water-saving tank 4 is filled with the fine bubble-mixed water.

微細気泡は、オゾン発生装置２９を運転するとオゾン微細気泡となり、オゾン発生装置２９を運転しない場合は空気微細気泡となる。   The fine bubbles become ozone fine bubbles when the ozone generator 29 is operated, and become air fine bubbles when the ozone generator 29 is not operated.

３１は外槽２からの排気配管、３２は節水槽４の底部に接続した排水配管で、排水管１８に接続する。排水配管３２の途中に節水槽排水弁３３を設けてある。   31 is an exhaust pipe from the outer tank 2, and 32 is a drain pipe connected to the bottom of the water-saving tank 4, which is connected to the drain pipe 18. A water-saving tank drain valve 33 is provided in the middle of the drain pipe 32.

次に、本実施例に係わる洗濯機の動作を説明する。   Next, the operation of the washing machine according to this embodiment will be described.

まず、洗剤を使用しない場合の洗濯フローについて図２を参照して説明する。   First, a washing flow when no detergent is used will be described with reference to FIG.

ステップＳ００１
洗濯コースの選択ボタンの洗剤なしコースボタンを押し、洗濯開始する。 Step S001
Press the washing course selection button of the washing course selection button to start washing.

ステップＳ００２
節水槽４内に規定量の水が貯水されているか否かを検知し、処理を分岐する。 Step S002
Whether or not a specified amount of water is stored in the water-saving tank 4 is detected, and the processing is branched.

ステップＳ００３
貯水量が規定量より少ない場合は、給水切換弁１０を開き軟水化装置６で硬度成分を除去した軟水を規定量まで節水槽４内に給水する。 Step S003
When the amount of stored water is less than the specified amount, the water supply switching valve 10 is opened and the soft water from which the hardness component has been removed by the water softening device 6 is supplied into the water-saving tank 4 up to the specified amount.

ステップＳ００４
給水弁８を開き、外槽２内に規定量の洗い水を給水する。洗い水は、軟水化装置６で硬度成分を除去した軟水である。 Step S004
The water supply valve 8 is opened, and a specified amount of washing water is supplied into the outer tub 2. The washing water is soft water from which the hardness component has been removed by the water softening device 6.

ステップＳ００５
蒸気供給配管１５から蒸気を外槽２内に供給し、予め設定された温度まで軟水を加熱する。この温度は、温度選択スイッチで設定された温度または、洗濯機に予めプログラムされた温度である。 Step S005
Steam is supplied from the steam supply pipe 15 into the outer tub 2 and the soft water is heated to a preset temperature. This temperature is a temperature set by a temperature selection switch or a temperature programmed in advance in the washing machine.

ステップＳ００６
洗濯兼脱水槽３を正逆回転し、洗濯物を持上げ落下、攪拌しながら洗い工程を行う。同時に、ポンプ２１を運転し循環切換弁Ａ２４と排水切換弁２０を開き、節水槽４の水を外槽２内に供給し、外槽２内の水を節水槽４に戻すよう洗い水を循環する。 Step S006
The washing and dewatering tub 3 is rotated forward and backward, and the washing process is performed while lifting and dropping and stirring the laundry. At the same time, the pump 21 is operated, the circulation switching valve A24 and the drainage switching valve 20 are opened, the water in the water-saving tank 4 is supplied into the outer tank 2, and the washing water is circulated so that the water in the outer tank 2 is returned to the water-saving tank 4. To do.

節水槽４内に貯水した水は常温なので、節水槽４内の水を外槽２内に供給すると水温が低下するので、蒸気供給配管１５から蒸気を外槽２内に供給し、予め設定された温度まで再度軟水を加熱する。   Since the water stored in the water-saving tank 4 is normal temperature, the water temperature drops when the water in the water-saving tank 4 is supplied into the outer tank 2, so steam is supplied from the steam supply pipe 15 into the outer tank 2 and is preset. Heat the soft water again to the desired temperature.

循環水中に微細気泡発生装置２２で生成した微細気泡が混入し、外槽２内に供給される。従って、洗濯物は微細気泡が混入した温水・軟水中で洗われる。洗い工程は、予め決められた時間行う。   Fine bubbles generated by the fine bubble generator 22 are mixed into the circulating water and supplied into the outer tub 2. Therefore, the laundry is washed in warm water / soft water mixed with fine bubbles. The washing process is performed for a predetermined time.

人が着用する衣類に付着する汚れは、人体から発生する皮脂汚れや蛋白汚れ、食品や生活環境からの汚れが主なものである。一般に、水中の繊維や汚れは負に帯電している。   Dirt that adheres to clothing worn by people is mainly sebum stains and protein stains generated from the human body, and stains from food and living environments. In general, fibers and dirt in water are negatively charged.

このため、水に硬度成分（カルシウムイオン、マグネシウムイオンなどの多価イオン）が含まれていると、硬度成分が繊維や汚れに吸着しやすく、汚れの除去が妨げられる。また、皮脂汚れと硬度成分が結合することで、皮脂汚れが不溶化し汚れ落ちが阻害される。軟水を使用すると、このような弊害がなくなるため、洗浄力を高くできる。   For this reason, when water contains a hardness component (multivalent ions such as calcium ions and magnesium ions), the hardness component is easily adsorbed to fibers and dirt, and the removal of dirt is hindered. In addition, the sebum stain and the hardness component are combined, so that the sebum stain is insolubilized and the removal of the stain is inhibited. When soft water is used, such a harmful effect is eliminated, so that the detergency can be increased.

水温が高いと、汚れ、特に皮脂汚れのような油汚れが流動化し落ちやすくなり、洗浄力を高くすることができる。   When the water temperature is high, dirt, in particular oil dirt such as sebum dirt, tends to flow and fall off, and the cleaning power can be increased.

このように、温水と軟水を併用することで、洗剤を使用しなくても洗浄力をある程度高くすることが可能である。洗濯物から落ちて水中に出てきた汚れがどうなるかを考える。   Thus, by using warm water and soft water together, it is possible to increase the cleaning power to some extent without using a detergent. Think about what happens to the dirt that falls from the laundry and comes out into the water.

本実施例では洗剤を使用していないため、洗濯物から落ちた汚れが洗濯物に再付着してしまう可能性が高い。しかし、微細気泡混入水を使用しているので、この再付着の可能性を大幅に低減できる。   In this embodiment, since no detergent is used, there is a high possibility that dirt that has fallen from the laundry will reattach to the laundry. However, since water containing fine bubbles is used, the possibility of this reattachment can be greatly reduced.

直径が５０μｍ以下の微細気泡には、次のような特徴と作用がある。体積当たりの表面積が大きく、水中での浮上速度が遅く滞在時間が長いことから、
（１）気体の溶解効率が高い。
（２）気液界面に水中の不純物を吸着、浮上させ水を浄化する。
などである。このため、洗濯物から離脱し水中に出てきた汚れは微細気泡に吸着し、洗濯物への再付着を防ぐことができる。 The fine bubbles having a diameter of 50 μm or less have the following characteristics and functions. Because the surface area per volume is large, the ascent rate in water is slow and the stay time is long,
(1) Gas dissolution efficiency is high.
(2) Purify water by adsorbing and floating impurities in the water at the gas-liquid interface.
Etc. For this reason, the stain | pollution | contamination which left | separated from the laundry and came out in water adsorb | sucks to a fine bubble, and can prevent reattachment to a laundry.

また、微細気泡は、気液界面の表面張力により、気泡径が小さいほど内部の圧力が高くなり、この気泡が崩壊する時に圧力波が発生し、これによる洗浄効果も有している。   In addition, due to the surface tension at the gas-liquid interface, the internal pressure of the fine bubbles increases as the bubble diameter decreases, and a pressure wave is generated when the bubbles collapse, thereby having a cleaning effect.

従って、微細気泡混入水中に洗濯物が落下することで、微細気泡が崩壊し、洗濯物に圧力波が作用し洗浄力が発生する。   Therefore, when the laundry falls into the water mixed with fine bubbles, the fine bubbles collapse, a pressure wave acts on the laundry, and a cleaning power is generated.

温水を併用することで、皮脂汚れが流動化しているため、より高い効率で汚れを落とすことができる。さらに、軟水を使用することで、汚れや繊維への硬度成分付着による洗浄力低下が起きないため、一層高い洗浄力が得られる。   By using warm water in combination, sebum dirt is fluidized, so that dirt can be removed with higher efficiency. Furthermore, by using soft water, since the detergency is not reduced due to dirt and adhesion of hardness components to the fibers, higher detergency can be obtained.

また、微細気泡はサイズが非常に小さいため、布の内部にまで入り込みやすく、表面だけでなく比較的落ちにくい内部の汚れにも作用する。微細気泡は崩壊により消滅するため、洗い工程中はポンプを常に運転し、微細気泡を供給し続ける必要がある。   In addition, since the microbubbles are very small in size, they easily penetrate into the cloth and act not only on the surface but also on internal dirt that is relatively difficult to remove. Since the fine bubbles disappear due to the collapse, it is necessary to always operate the pump and continuously supply the fine bubbles during the washing process.

図３は、温水、軟水、微細気泡の洗浄効果の一例である。   FIG. 3 is an example of the cleaning effect of warm water, soft water, and fine bubbles.

図中ＭＢ水は、微細気泡混入水を示す。水温は２０℃と４０℃、硬度は０ｐｐｍ（軟水）と１２０ｐｐｍ（硬水）である。硬度は炭酸カルシウム換算値で表した値である。洗浄力は、２０℃の硬水で洗剤を使用した場合の洗浄力（図中一番左に示す）を基準とした相対値で示してある。   In the figure, MB water indicates fine-bubble mixed water. The water temperature is 20 ° C. and 40 ° C., and the hardness is 0 ppm (soft water) and 120 ppm (hard water). Hardness is a value expressed in terms of calcium carbonate. The detergency is shown as a relative value based on the detergency (shown on the left in the figure) when a detergent is used with hard water at 20 ° C.

左から２〜５番目が硬水の結果、６〜９番目が軟水の結果である。図から分るように、どの条件でも硬水より軟水の方が、２０℃より４０℃の方が、微細気泡がない場合より微細気泡がある水の方が高い洗浄力を示している。これは、上述した作用によるものである。   The second to fifth from the left are the results of hard water, and the sixth to ninth are the results of soft water. As can be seen from the figure, under any condition, soft water is higher than hard water, 40 ° C. is higher than 20 ° C., and water with fine bubbles is higher than when there are no fine bubbles. This is due to the action described above.

ここで注目すべき点は、軟水、４０℃、微細気泡水の洗浄力の高さである。基準とした洗剤を使用した場合の洗浄力を、洗剤を使用せずに越す値を示している。水温２０℃硬水を軟水にすると、洗浄力相対値が約０．０６ポイント上昇する（軟水効果）。   What should be noted here is the high detergency of soft water, 40 ° C., and fine bubble water. It shows the value that exceeds the detergency without using the detergent when the standard detergent is used. When the water temperature of 20 ° C. is changed to soft water, the detergency relative value increases by about 0.06 points (soft water effect).

さらに軟水で２０℃から４０℃にすると洗浄力が約０.２４ポイント上昇し（温度効果）、微細気泡を使用すると０．２３ポイント上昇する（ＭＢ効果）。この効果分を足し合わせると図中破線で示すように洗浄力相対値は０．９５になる。   Further, when the temperature is increased from 20 ° C. to 40 ° C. with soft water, the detergency is increased by about 0.24 points (temperature effect), and when fine bubbles are used, the increase is 0.23 points (MB effect). When this effect is added, the relative value of the cleaning power is 0.95 as shown by the broken line in the figure.

しかし、実際にはここの効果を加えた値より０．１９ポイントも高い洗浄力を示している。このことは、軟水と温水と微細気泡を組み合わせることにより、単独の洗浄力向上効果を加えるより高い効果、すなわち相乗効果を有していることがわかる。どれか一つの要素が欠けると、洗浄力相対値は０．３８から０．４３ポイントも低下してしまう。   However, in actuality, the cleaning power is 0.19 points higher than the value obtained by adding this effect. This shows that the combination of soft water, warm water and fine bubbles has a higher effect of adding a single detergency improving effect, that is, a synergistic effect. If any one element is missing, the detergency relative value decreases by 0.38 to 0.43 points.

上記では、オゾン発生装置２９を使用していなかったが、オゾン発生装置２９を運転し、オゾン微細気泡を使用することで、さらに次のような効果が得られる。微細気泡は、上述したように気体の溶解効率が高く、効率良くオゾンを水へ溶解させオゾン水を生成できる。   Although the ozone generator 29 was not used in the above, the following effects can be obtained by operating the ozone generator 29 and using ozone fine bubbles. As described above, the fine bubbles have high gas dissolution efficiency, and can efficiently dissolve ozone into water to generate ozone water.

オゾンは非常に酸化力が強く、有害物質を分解し、殺菌や消臭作用を有していることが知られている。従って、オゾン水中で洗いやすすぎを行うことで、洗濯物の殺菌、消臭が行える。   It is known that ozone has a very strong oxidizing power, decomposes harmful substances, and has a sterilizing and deodorizing action. Therefore, the laundry can be sterilized and deodorized by washing too easily in ozone water.

また、オゾンは有機物の分解作用による洗浄作用や漂白作用も有している。すなわち、微細気泡の崩壊時に発生する圧力波の洗浄効果に加えて、オゾンが汚れを分解し低分子量化するため、汚れが洗濯物から離脱しやすくなり、洗浄力を高める効果がある。   Ozone also has a cleaning action and a bleaching action due to the decomposition action of organic substances. That is, in addition to the cleaning effect of pressure waves generated when fine bubbles collapse, ozone decomposes dirt and lowers its molecular weight, so that dirt is easily detached from the laundry, and there is an effect of increasing cleaning power.

さらに、洗濯物から取れて水中に出てきた汚れ自体も分解する作用があり、洗濯をしながら洗濯水の浄化も行うことができ、洗濯排水の汚濁防止が可能である。   Furthermore, the dirt itself taken out from the laundry and coming out in the water also has an action of decomposing, so that the washing water can be purified while washing, and the washing drainage can be prevented from being polluted.

なお、殺菌や消臭作用に関しては低い０．１ｐｐｍ程度の低いオゾン濃度で十分な効果を発揮する。一方、洗浄や漂白作用のためには、短時間に効果を得るために１ｐｐｍ以上の濃度の方が好ましい。   As for sterilization and deodorizing action, a low ozone concentration of about 0.1 ppm exhibits a sufficient effect. On the other hand, for cleaning and bleaching action, a concentration of 1 ppm or more is preferable in order to obtain an effect in a short time.

オゾン水は、また、殺菌作用だけでなく付着している微生物の剥離効果を有している。この効果は、０．１や０．２ｐｐｍという低いオゾン濃度でも発現する。このため、衣類や洗濯槽に付着している微生物は、オゾン水に触れると別の場所に移動（大部分は水中に移動）し、排水時に洗濯機外に排出される。   Ozone water has not only a bactericidal action but also a peeling effect of adhering microorganisms. This effect is exhibited even at ozone concentrations as low as 0.1 and 0.2 ppm. For this reason, the microorganisms adhering to the clothes and the washing tub move to another place (mostly move into the water) when they come into contact with ozone water, and are discharged out of the washing machine during drainage.

このため、殺菌を行わなくても、衣類や洗濯槽、節水槽から微生物を排除できる。また、低濃度であるため、衣類や洗濯機や節水槽の構成材料へのダメージが少ない。洗濯槽や外槽、節水槽などのオゾン水に触れる部分に耐腐食性の高い材料を使用する必要がなく、洗濯機のコストアップを抑えられる。   For this reason, microorganisms can be eliminated from clothes, washing tubs, and water-saving tubs without sterilization. Moreover, since it is low concentration, there is little damage to the constituent material of clothing, a washing machine, or a water-saving tank. It is not necessary to use a highly corrosion-resistant material for parts that come in contact with ozone water, such as washing tubs, outer tubs, and water-saving tubs, and the cost of the washing machine can be suppressed.

ステップＳ００７
すすぎを行うか否かで処理を分岐する。本実施例では、洗剤を使用しておらず、洗い中に水中に出てきた汚れをオゾンで分解するため、軽い汚れの衣類の場合は、すすぎ工程を特別に行う必要がなく、大幅な使用水量の低減と、洗濯時間の短縮が可能である。 Step S007
Processing branches depending on whether or not to perform rinsing. In this example, no detergent is used, and the dirt that comes out in the water during washing is decomposed by ozone. It is possible to reduce the amount of water and the washing time.

ステップＳ００８
ポンプ２１を停止し、循環切換弁Ａ２４と排水切換弁２０を閉じ、排水弁１７と節水槽排水弁３３を開き、外槽２内および節水槽４内の洗い水を排水管１８から機外へ排水する。そして、洗濯兼脱水槽３を高速に回転し、脱水を行う。 Step S008
The pump 21 is stopped, the circulation switching valve A24 and the drainage switching valve 20 are closed, the drainage valve 17 and the water-saving tank drainage valve 33 are opened, and the wash water in the outer tank 2 and the water-saving tank 4 is discharged from the drain pipe 18 to the outside of the machine. Drain. Then, the washing and dewatering tub 3 is rotated at high speed to perform dehydration.

ステップＳ００９
給水弁８及び給水切換弁１０を開き、外槽２および節水槽４内に規定量の軟水を給水する。 Step S009
The water supply valve 8 and the water supply switching valve 10 are opened, and a specified amount of soft water is supplied into the outer tank 2 and the water-saving tank 4.

ステップＳ０１０
洗濯兼脱水槽３を正逆回転し、すすぎ工程を行う。同時に、ポンプ２１を運転し、循環切換弁Ａ２４と排水切換弁２０を開き、すすぎ水を循環する。循環水中に微細気泡発生装置２２で生成したオゾン微細気泡が混入し、洗い時と同様に、除菌、消臭をしながらすすぎを行う。 Step S010
The washing and dewatering tub 3 is rotated forward and backward to perform a rinsing process. At the same time, the pump 21 is operated, the circulation switching valve A24 and the drainage switching valve 20 are opened, and the rinse water is circulated. Ozone fine bubbles generated by the fine bubble generator 22 are mixed in the circulating water, and rinsing is performed while sterilizing and deodorizing in the same manner as in washing.

この時、蒸気供給配管１５から蒸気を外槽２内に供給し、すすぎ水を加熱し、予め設定された温度に温水化してもよい。こうすることで、洗い工程と同様、洗浄作用も期待でき、洗浄力をさらに高めることができる。   At this time, steam may be supplied from the steam supply pipe 15 into the outer tub 2 to heat the rinse water and warm water to a preset temperature. By carrying out like this, the washing | cleaning effect | action can also be anticipated similarly to a washing | cleaning process, and detergency can be raised further.

ステップＳ０１１
ポンプ２１を停止し、循環切換弁Ａ２４と排水切換弁２０を閉じ、排水弁１７と節水槽排水弁３３を開き外槽２内および節水槽４内の水を排水管１８から機外へ排水する。そして、洗濯兼脱水槽３を高速に回転し、脱水を行い、洗濯を終了する。 Step S011
The pump 21 is stopped, the circulation switching valve A24 and the drainage switching valve 20 are closed, the drainage valve 17 and the water saving tank drainage valve 33 are opened, and the water in the outer tank 2 and the water saving tank 4 is drained from the drain pipe 18 to the outside of the machine. . Then, the washing and dewatering tub 3 is rotated at high speed to perform dehydration, and the washing is finished.

なお、本実施例では、洗濯水の加熱に蒸気を使用したが、洗濯兼脱水槽２内にシーズヒータのような加熱装置を設けたり、給湯装置からの温水を供給するようにしてもよい。   In this embodiment, steam is used for heating the washing water. However, a heating device such as a sheathed heater may be provided in the washing and dewatering tub 2 or hot water from a hot water supply device may be supplied.

また、ステップＳ００５で外槽２内の水を加熱し、ステップＳ００６の洗い工程で節水槽４の水を外槽２へ供給、循環中に再度加熱するようにしているが、次のようにすることで、時間の設翼が可能である。   In step S005, the water in the outer tub 2 is heated, and in the washing process in step S006, the water in the water-saving tub 4 is supplied to the outer tub 2 and heated again during the circulation. In this way, it is possible to set up time.

ステップＳ００５を行わず、ステップＳ００６の洗い工程で、節水槽４と外槽２内の洗い水の循環中に、外槽２へ蒸気を供給し、外槽２と節水槽４内の水温を同時に上げるようにする。   Without performing step S005, in the washing process of step S006, steam is supplied to the outer tub 2 during the circulation of the rinsing water in the water-saving tub 4 and the outer tub 2, and the water temperature in the outer tub 2 and the water-saving tub 4 is simultaneously adjusted. Try to raise.

あるいは、蒸気供給配管１５を外槽２だけでなく節水槽４にも接続し、または、節水槽４内にシーズヒータなどの加熱装置を設け、ステップ００５の洗濯水加熱工程で外槽２と節水槽４内の水を同時に加熱するようにする。   Alternatively, the steam supply pipe 15 is connected not only to the outer tub 2 but also to the water-saving tub 4, or a heating device such as a sheathed heater is provided in the water-saving tub 4, and the outer tub 2 and the node are saved in the washing water heating step of Step 005. The water in the water tank 4 is heated at the same time.

洗剤を使用した他の実施例２に係わる動作フローについて図４を参照し説明する。   An operation flow according to another embodiment 2 using a detergent will be described with reference to FIG.

ステップＳ１０１
洗濯コースの選択ボタンの洗剤使用コースボタンを押し、洗濯開始する。 Step S101
Press the washing course selection button of the washing course selection button to start washing.

ステップＳ１０２
節水槽４内に水が貯水されているか否かを検知し、処理を分岐する。 Step S102
It is detected whether or not water is stored in the water-saving tank 4, and the processing is branched.

ステップＳ１０３
節水槽４に水が貯水されている場合は、ポンプ２１を運転し循環切換弁Ａ２４を開き、節水槽４内に貯水されていた水を外槽２内に規定量給水する。その後、給水切換弁１０を開き、外槽４への給水量とほぼ等しい水量の軟水を節水槽４内に補給する。 Step S103
When water is stored in the water-saving tank 4, the pump 21 is operated to open the circulation switching valve A24, and the water stored in the water-saving tank 4 is supplied into the outer tank 2 by a specified amount. Thereafter, the water supply switching valve 10 is opened, and soft water having an amount of water substantially equal to the amount of water supplied to the outer tub 4 is supplied into the water-saving tub 4.

ステップＳ１０４
節水槽４に水が貯水されていない場合は、給水弁８を開き、軟水化装置６で硬度成分を除去された軟水を外槽２内に規定量給水する。 Step S104
When water is not stored in the water-saving tank 4, the water supply valve 8 is opened, and a specified amount of soft water from which the hardness component has been removed by the water softening device 6 is supplied into the outer tank 2.

ステップＳ１０５
ステップＳ１０３あるいはステップＳ１０４の給水中に、洗剤供給弁１４を開き、洗剤供給装置１２から規定量の洗剤を外槽２内に供給する。 Step S105
During the water supply in step S103 or step S104, the detergent supply valve 14 is opened, and a specified amount of detergent is supplied from the detergent supply device 12 into the outer tub 2.

ステップＳ１０６
蒸気供給配管１５から蒸気を外槽２内に供給し、予め設定された温度まで洗い水を加熱する。この温度は、温度洗濯スイッチで設定された温度または、洗濯機に予めプログラムされた温度である。 Step S106
Steam is supplied from the steam supply pipe 15 into the outer tub 2 and the washing water is heated to a preset temperature. This temperature is a temperature set by the temperature washing switch or a temperature programmed in advance in the washing machine.

ステップＳ１０７
洗濯兼脱水槽３を正逆回転し、洗濯物を持上げ落下、攪拌しながら洗い工程を行う。洗い工程は、予め決められた時間行う。 Step S107
The washing and dewatering tub 3 is rotated forward and backward, and the washing process is performed while lifting and dropping and stirring the laundry. The washing process is performed for a predetermined time.

ステップＳ１０８
ステップＳ１０７の洗い工程中に、ポンプ２１を運転し循環切換弁Ｂ２６を開き、節水槽４の水を循環する。オゾンガス発生装置２９を運転し、循環水中に微細気泡発生装置２２で生成したオゾン微細気泡を混入し、オゾン水を生成する。 Step S108
During the washing process of step S107, the pump 21 is operated, the circulation switching valve B26 is opened, and the water in the water-saving tank 4 is circulated. The ozone gas generator 29 is operated to mix ozone fine bubbles generated by the fine bubble generator 22 in the circulating water to generate ozone water.

ステップＳ１０９
排水弁１７を開き、外槽２内の洗い水を機外へ排水する。そして、洗濯兼脱水槽３を高速回転し、脱水を行う。その後、すすぎ工程に移行するが、すすぎ工程の回数は、任意に設定可能であるが、本実施例では、すすぎを２回行う場合について述べる。 Step S109
The drain valve 17 is opened, and the wash water in the outer tub 2 is drained out of the machine. Then, the washing and dewatering tub 3 is rotated at high speed to perform dehydration. Thereafter, the process proceeds to a rinsing process. The number of rinsing processes can be arbitrarily set. In this embodiment, a case where rinsing is performed twice will be described.

ステップＳ１１０
ポンプ２２を運転し、循環切換弁Ａ２４を開き、節水槽４内のオゾン水を外槽２内に規定量給水する。 Step S110
The pump 22 is operated, the circulation switching valve A24 is opened, and ozone water in the water saving tank 4 is supplied into the outer tank 2 by a specified amount.

ステップＳ１１１
洗濯兼脱水槽３を正逆回転し、１回目のすすぎ工程を行う。すすぎをオゾン水で行うことにより、洗濯物に残っている洗剤分の希釈だけでなく、オゾンの強力な酸化力による雑菌の除菌や有機物の分解などの効果がある。このため、洗濯後に有機物中で雑菌が繁殖することがなく、洗濯物からの異臭の発生を抑制できる。また、オゾンの酸化力は、漂白作用を有しており、特に、洗剤では落としにくいジュースやワインなどの植物系のシミ汚れを漂白、除去する効果は塩素系の漂白剤以上である。 Step S111
The washing and dewatering tub 3 is rotated forward and backward to perform the first rinsing process. By rinsing with ozone water, there are not only dilution of the detergent remaining in the laundry, but also effects such as sterilization of germs and decomposition of organic substances by the strong oxidizing power of ozone. For this reason, miscellaneous bacteria do not propagate in the organic matter after washing, and the generation of off-flavors from the laundry can be suppressed. In addition, the oxidizing power of ozone has a bleaching action, and in particular, the effect of bleaching and removing plant stains such as juice and wine that are difficult to remove with a detergent is more than that of a chlorine bleach.

ステップＳ１１２
ステップＳ１１１のすすぎ工程中に、給水切換弁１０を開き節水槽４内に軟水を補給する。そして、ポンプ２１を運転し循環切換弁Ｂ２６を開き、節水槽４の水を循環する。オゾンガス発生装置２９を運転し、循環水中に微細気泡発生装置２２で生成したオゾン微細気泡を混入し、オゾン水を生成する。 Step S112
During the rinsing process of step S111, the water supply switching valve 10 is opened to supply soft water into the water-saving tank 4. Then, the pump 21 is operated, the circulation switching valve B26 is opened, and the water in the water-saving tank 4 is circulated. The ozone gas generator 29 is operated to mix ozone fine bubbles generated by the fine bubble generator 22 in the circulating water to generate ozone water.

ステップＳ１１３
排水弁１７を開き、外槽２内のすすぎ水を機外へ排水する。そして、洗濯兼脱水槽３を高速回転し、脱水を行う。 Step S113
The drain valve 17 is opened, and the rinse water in the outer tub 2 is drained out of the machine. Then, the washing and dewatering tub 3 is rotated at high speed to perform dehydration.

ステップＳ１１４
ポンプ２２を運転し、循環切換弁Ａ２４を開き、節水槽４内のオゾン水を外槽２内に規定量給水する。 Step S114
The pump 22 is operated, the circulation switching valve A24 is opened, and ozone water in the water saving tank 4 is supplied into the outer tank 2 by a specified amount.

ステップＳ１１５
洗濯兼脱水槽３を正逆回転し、２回目のすすぎ工程を行う。本ステップにおけるオゾン水の効果は、ステップＳ１０９と同様である。 Step S115
The washing and dewatering tub 3 is rotated forward and backward to perform a second rinsing step. The effect of ozone water in this step is the same as in step S109.

ステップＳ１１６
排水切換弁２０を開き、外槽２内の水を節水槽４内に排出する。節水槽４内に貯水した水は、次回洗濯の洗いに使用する。これにより、節水が可能となる。 Step S116
The drainage switching valve 20 is opened, and the water in the outer tub 2 is discharged into the water-saving tank 4. The water stored in the water-saving tank 4 is used for washing the next time. Thereby, water saving becomes possible.

例えば、本実施例のように洗い１回、すすぎ２回の合計３回外槽２に水を給供給する場合を考えると、節水槽４を使用することで、１回分の水を節約でき、節水槽４がない場合に比べ約３０％の節水が可能である。   For example, considering the case where water is supplied to the outer tub 2 in a total of three times of washing once and rinsing twice as in this embodiment, the water saving tank 4 can be used to save water for one time, About 30% of water can be saved as compared with the case without the water saving tank 4.

本実施例では、すすぎは２回行ったので、２回目のすすぎ水を節水槽４へ溜めるようにしたが、洗濯工程の最終すすぎ工程のすすぎ水を節水槽４へ溜めるようにする。   In this embodiment, since the rinsing is performed twice, the second rinse water is stored in the water-saving tank 4, but the rinse water in the final rinsing process of the washing process is stored in the water-saving tank 4.

また、オゾン水を使用してすすぎを行っているため、すすぎ水自体の殺菌が行えるため、節水槽４内での雑菌の繁殖を防止でき、次回洗濯で雑菌や匂いのない水を供給できる。より完全に殺菌するために、節水槽４に溜めた後で、ポンプ２１を運転し、節水槽４内で水を循環しながらオゾン微細気泡を発生させ、溜めた水の殺菌処理を行ってもよい。   In addition, since rinsing is performed using ozone water, the rinsing water itself can be sterilized. Therefore, it is possible to prevent the propagation of germs in the water-saving tank 4, and to supply water free of germs and smells in the next washing. In order to sterilize more completely, even if it is stored in the water-saving tank 4, the pump 21 is operated to generate ozone fine bubbles while circulating water in the water-saving tank 4, and the stored water is sterilized. Good.

最後に、洗濯兼脱水槽３を高速に回転し脱水を行い、洗濯を終了する。   Finally, the washing and dewatering tank 3 is rotated at high speed to perform dehydration, and the washing is finished.

なお、ステップ１１１とステップ１１５のすすぎ工程において、常温の水を使用した場合を述べたが、すすぎ工程においても蒸気を供給しすすぎ水を加熱し、温水を使用してもよいことはもちろんである。   In addition, although the case where normal temperature water was used was described in the rinsing process of step 111 and step 115, it is a matter of course that the rinsing process may be performed by supplying steam and heating the rinsing water in the rinsing process. .

また、節水槽４でのオゾン水の生成は、ステップＳ１０７の洗い工程やステップＳ１１１のすすぎ工程中に行っており、オゾン水を作るために洗濯時間が長くなるようなことはない。   The generation of ozone water in the water-saving tank 4 is performed during the washing process in step S107 and the rinsing process in step S111, and the washing time does not become long to produce ozone water.

本発明の実施例１における洗濯機の全体構成を示す概略図である。It is the schematic which shows the whole structure of the washing machine in Example 1 of this invention. 実施例１の洗濯機の動作フロー図である。It is an operation | movement flowchart of the washing machine of Example 1. FIG. 実施例１の洗濯機における洗浄効果を説明するグラフである。It is a graph explaining the washing | cleaning effect in the washing machine of Example 1. FIG. 本発明の実施例２における洗濯機の動作フロー図である。It is an operation | movement flowchart of the washing machine in Example 2 of this invention.

符号の説明Explanation of symbols

２…外槽、３…洗濯兼脱水槽、４…節水槽、６…軟水化装置、１２…洗剤供給装置、１９…排水配管Ｂ、２１…ポンプ、２２…微細気泡発生装置、２５…微細気泡供給配管、２７…循環配管、２９…オゾン発生装置。   DESCRIPTION OF SYMBOLS 2 ... Outer tub, 3 ... Washing and dehydration tub, 4 ... Water saving tank, 6 ... Water softening device, 12 ... Detergent supply device, 19 ... Drain piping B, 21 ... Pump, 22 ... Fine bubble generator, 25 ... Fine bubble Supply piping, 27 ... circulation piping, 29 ... ozone generator.

Claims (5)

外枠に内置され、洗濯水を溜める外槽と、この外槽に内置かれ、洗濯物を収容する洗濯兼脱水槽と、前記外槽に供給する水を貯溜する節水槽とを備えた洗濯機において、
前記外槽と前記節水槽へ水を供給する給水手段と、
前記給水手段に設けた軟水化装置と、
前記外槽へ供給する水または外槽に溜まる水を加熱する加熱装置と、
前記外槽の水を前記節水槽へ排水する排水経路と、
前記節水槽の水を前記外槽へ供給する貯水供給経路と、
前記節水槽内の水を循環する貯水循環経路と、
前記節水槽内の水を前記貯水供給経路と前記貯水循環経路に供給するポンプと、
前記ポンプから吐出された水に微細気泡を混入させる微細気泡発生装置と、
前記微細気泡発生装置にオゾンを供給するオゾン発生装置とを備えたことを特徴とする洗濯機。 A washing machine having an outer tub placed in an outer frame and storing washing water, a washing and dehydrating tub placed in the outer tub for storing laundry, and a water-saving tub for storing water to be supplied to the outer tub In
Water supply means for supplying water to the outer tank and the water-saving tank;
A water softening device provided in the water supply means;
A heating device for heating water supplied to the outer tub or water accumulated in the outer tub;
A drainage path for draining water from the outer tank to the water-saving tank;
A water storage supply path for supplying water from the water-saving tank to the outer tank;
A water storage circulation path for circulating water in the water-saving tank;
A pump for supplying water in the water-saving tank to the water storage supply path and the water storage circulation path;
A fine bubble generator for mixing fine bubbles into water discharged from the pump;
A washing machine comprising an ozone generator for supplying ozone to the fine bubble generator. 請求項１記載の洗濯機において、
洗剤使用コースと洗剤なしコースを備え、洗剤なしコースが選択された場合は、洗濯水として軟水化した温水を使用し、
前記ポンプで前記節水槽内の水を前記貯水供給経路から外槽に供給し、前記排水経路から前記節水槽に戻るように循環し、この循環する循環水中に前記微細気泡発生装置でオゾン微細気泡を混入させたことを特徴とする洗濯機。 The washing machine according to claim 1, wherein
If there is a course using detergent and a course without detergent, and the course without detergent is selected, use warm water softened as washing water,
The water in the water-saving tank is supplied from the water storage supply path to the outer tank by the pump, circulates back to the water-saving tank from the drainage path, and ozone fine bubbles are generated in the circulating water by the micro-bubble generator. A washing machine characterized in that it is mixed. 請求項１記載の洗濯機において、
洗剤使用コースと洗剤なしコースを備え、
前記洗剤使用コースが選択された場合は、洗い工程中に前記節水槽内に軟水を貯水し、
前記ポンプで前記節水槽内の水を前記貯水循環経路で循環し、
前記貯水循環経路を循環する循環水中に前記微細気泡発生装置でオゾン微細気泡を混入して前記節水槽内でオゾン水を生成し、このオゾン水をすすぎに使用することを特徴とする洗濯機。 The washing machine according to claim 1, wherein
It has a course with detergent and a course without detergent,
When the detergent use course is selected, soft water is stored in the water-saving tank during the washing process,
Circulating the water in the water-saving tank with the pump through the water storage circulation path,
A washing machine, wherein ozone water bubbles are mixed in circulating water circulating through the water storage circulation path by the fine bubble generator to generate ozone water in the water-saving tank, and the ozone water is used for rinsing. 請求項３記載の洗濯機において、
最後のすすぎで使用した水を前記節水槽に貯水し、
前記ポンプで前記節水槽内の水を前記貯水循環経路で循環し、
前記貯水循環経路を循環する循環水中に前記微細気泡発生装置でオゾン微細気泡を混入して除菌し、
除菌した水を前記節水槽に貯水して次回の洗濯水に使用することを特徴とする洗濯機。 The washing machine according to claim 3,
The water used in the last rinse is stored in the water-saving tank,
Circulating the water in the water-saving tank with the pump through the water storage circulation path,
Microbial ozone bubbles are mixed in the circulating water circulating through the water storage circulation path to sterilize,
A washing machine, wherein the sterilized water is stored in the water-saving tank and used for the next washing water. 洗濯水として温水および軟水を使用する洗濯方法において、
前記洗濯水にオゾン微細気泡を混入した洗剤未使用の洗濯液を洗濯に使用することを特徴とする洗濯方法。 In the washing method using warm water and soft water as washing water,
A washing method characterized by using laundry-free washing liquid in which ozone fine bubbles are mixed in the washing water.
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TWI638073B (en) * 2015-12-25 2018-10-11 東芝生活電器股份有限公司 washing machine
CN106758017A (en) * 2016-12-22 2017-05-31 南京中竞科电子科技有限公司 One kind can be with hydronic washing machine
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