JP2009247770A - Sterilizing apparatus and washing machine - Google Patents

Sterilizing apparatus and washing machine Download PDF

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JP2009247770A
JP2009247770A JP2008102270A JP2008102270A JP2009247770A JP 2009247770 A JP2009247770 A JP 2009247770A JP 2008102270 A JP2008102270 A JP 2008102270A JP 2008102270 A JP2008102270 A JP 2008102270A JP 2009247770 A JP2009247770 A JP 2009247770A
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antibacterial agent
water
treated
optical excitation
photoexcited
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JP4935744B2 (en
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Shigeru Sasabe
笹部  茂
Takemi Oketa
岳見 桶田
Hiroshi Nishida
博史 西田
Shiho Furuya
志保 古谷
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Panasonic Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a sterilizing apparatus which can sterilize or antibacterially treat a large amount of clothes even with a sterilizing agent of a low concentration, and to increase the sterilizing effect by making the generation of active oxygen species effectively be performed. <P>SOLUTION: For this sterilizing apparatus, a housing tub 4, an optical excitation antibacterial agent generating means 10, a light source 23, and an atomizing means 11 are installed. In this case, the housing tub 4 houses an object to be treated. The optical excitation antibacterial agent generating means 10 loads an optical excitation antibacterial agent 15 having an optical excitation action to water by making the optical excitation antibacterial agent 15 effluent. The atomizing means 11 atomizes the optical excitation antibacterial agent loaded water being generated from the optical excitation antibacterial agent generating means 10. The optical excitation antibacterial agent loaded water which has been atomized by the atomizing means 11 is irradiated with light from the light source 22 to make the optical excitation antibacterial agent loaded water adhere to the object to be treated, and germs on the object to be treated are removed. Thus, active oxygen species are efficiently formed by utilizing diffused light, and the removal of germs on the object to be treated can effectively be performed. Also, since the atomized mist is jetted to the object to be treated, only a small amount of the optical excitation antibacterial agent is used, and the removal of germs on the object to be treated can be performed without excessively wetting dried clothes or tableware. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、洗濯機で洗う衣類や食器洗浄機で洗浄する食器類に付着した菌の除菌を行ったり、あるいは室内や冷蔵庫内の空気中の浮遊菌の除菌を行う除菌装置に関するものである。   The present invention relates to a sterilization apparatus for sterilizing bacteria attached to clothes washed by a washing machine or tableware washed by a dishwasher, or sterilizing airborne bacteria in a room or a refrigerator. It is.

従来、除菌装置には衣類の除菌あるいは抗菌処理を行う洗濯機として、抗菌性のあるAgを利用する以下のような除菌技術がある(例えば、特許文献1参照)。   Conventionally, the sterilization apparatus has the following sterilization technique using antibacterial Ag as a washing machine for performing sterilization of clothes or antibacterial treatment (for example, see Patent Document 1).

図3は、前記公報に記載された洗濯機の断面図を示すものである。図3に示すように、洗濯機51は全自動型のものであり、外箱60を備える。外箱60は直方体形状で、金属又は合成樹脂により成形され、その上面と底面は開口部となっている。外箱60の上面開口部には合成樹脂製の上面板61を重ね、外箱60にネジで固定する。上面板61には後述する洗濯槽に洗濯物を投入するための洗濯物投入口65が形設される。洗濯物投入口65を蓋66が上から覆う。   FIG. 3 shows a cross-sectional view of the washing machine described in the publication. As shown in FIG. 3, the washing machine 51 is a fully automatic type and includes an outer box 60. The outer box 60 has a rectangular parallelepiped shape and is formed of metal or synthetic resin, and the upper surface and the bottom surface are openings. An upper surface plate 61 made of synthetic resin is placed on the upper surface opening of the outer box 60 and fixed to the outer box 60 with screws. The upper surface plate 61 is formed with a laundry loading port 65 for loading laundry into a laundry tub described later. A lid 66 covers the laundry input port 65 from above.

外箱60の内部には水槽62と、脱水槽を兼ねる洗濯槽63を配置する。水槽62も洗濯槽63も上面が開口した円筒形のカップの形状を呈しており、各々軸線を垂直にし、水槽62を外側、洗濯槽63を内側とする形で同心的に配置される。   A water tub 62 and a washing tub 63 that also serves as a dewatering tub are disposed inside the outer box 60. Both the water tub 62 and the washing tub 63 are in the shape of a cylindrical cup having an open top surface, and are arranged concentrically with the axis being vertical, the water tub 62 being the outside, and the washing tub 63 being the inside.

洗濯槽63の内部底面には槽内で洗濯水あるいはすすぎ水の流動を生じさせるためのパルセータ64を配置する。   A pulsator 64 is disposed on the inner bottom surface of the washing tub 63 to cause the washing water or the rinsing water to flow in the tub.

洗濯機51は抗菌性のあるAgを溶出するイオン溶出ユニット100を備える。イオン溶出ユニット100はメイン給水管67の途中に配置されている。   The washing machine 51 includes an ion elution unit 100 that elutes antibacterial Ag. The ion elution unit 100 is disposed in the middle of the main water supply pipe 67.

以上のような構成の洗濯機について、その動作を説明する。   The operation of the washing machine configured as described above will be described.

洗濯機51の蓋66を開き、洗濯物投入口65から衣類が洗濯物投入口65から洗濯槽63へ投入される。   The lid 66 of the washing machine 51 is opened, and clothes are put into the washing tub 63 from the laundry throwing opening 65.

衣類が投入された後、洗濯機51の水槽62に水道から水が注水され、パルセータ64の攪拌によって洗い工程の運転が行われる。一定時間洗い運転が行われた後、洗濯槽63内の水は排水され、洗濯槽63は高速回転し脱水される。その後、水槽62に再び水が注水され、パルセータ64の攪拌によってすすぎ行程の運転が行われる。一定時間すすぎ運転が行われた後、洗濯槽63内の水は排水され、洗濯槽63は高速回転し脱水される。このすすぎと脱水工程が数回行われ洗濯が終了する。   After the clothes are put in, water is poured into the water tank 62 of the washing machine 51 from the tap water, and the washing process is operated by stirring the pulsator 64. After the washing operation is performed for a certain time, the water in the washing tub 63 is drained, and the washing tub 63 is rotated at high speed and dehydrated. Thereafter, water is again poured into the water tank 62 and the operation of the rinsing process is performed by stirring the pulsator 64. After the rinsing operation is performed for a certain time, the water in the washing tub 63 is drained, and the washing tub 63 is rotated at high speed and dehydrated. This rinsing and dehydration process is performed several times to complete the washing.

ここで、すすぎ工程において水道から注水される時に、イオン溶出ユニット100からはAgが溶出しメイン給水管67を通じて洗濯槽63内へ投入される。そして、洗濯槽63内で衣類がすすがれることで衣類の表面にAgが付着し、衣類に付着した菌の細胞壁と反応することで菌は死滅し除菌される。   Here, Ag is eluted from the ion elution unit 100 and poured into the washing tub 63 through the main water supply pipe 67 when water is poured from the water supply in the rinsing step. The clothes are rinsed in the washing tub 63 so that Ag adheres to the surface of the clothes and reacts with the cell walls of the bacteria attached to the clothes, so that the bacteria are killed and sterilized.

また、Agを含んだすすぎ水によって衣類の表面は抗菌処理されるため、洗濯後の衣類は、着用時に抗菌効果を有している。
特開2004−105692号公報
Moreover, since the surface of clothing is antibacterial treated with rinsing water containing Ag, the clothing after washing has an antibacterial effect when worn.
JP 2004-105692 A

しかしながら、前記従来の構成では、多量の衣類を抗菌あるいは除菌処理するためには、イオン溶出ユニット100からは高濃度のAgを溶出する必要があり、繰り返し衣類をAgで処理し続けると衣類が変色してしまうという課題があった。   However, in the conventional configuration, in order to antibacterial or disinfect a large amount of clothing, it is necessary to elute high concentration of Ag from the ion elution unit 100. If the clothing is repeatedly treated with Ag, There was a problem of discoloration.

また、Agによる除菌は、大腸菌や黄色ブドウ球菌に対しては効果が高いが、それ以外の細菌やカビに対しては効果が低くなるという課題があった。   Further, although sterilization with Ag is highly effective against Escherichia coli and Staphylococcus aureus, there is a problem that the effect is low against other bacteria and molds.

このような課題に対して、光励起作用のある抗菌剤を含んだ水で衣類をすすぎ処理し、処理した衣類に光を照射し、抗菌剤が励起したときに発生するヒドロキシラジカル等の活性酸素種により細菌やカビを分解する技術が考えられる。この技術により、活性酸素種を効率よく発生して被処理物の除菌を行うためには、抗菌剤の供給方法を最適化する必要がある。   In response to these problems, reactive oxygen species such as hydroxy radicals are generated when garments are rinsed with water containing an antibacterial agent having photoexcitation action, and the treated garment is irradiated with light to excite the antibacterial agent. A technique for decomposing bacteria and fungi can be considered. In order to efficiently generate reactive oxygen species and sterilize the object to be processed by this technique, it is necessary to optimize the method of supplying the antibacterial agent.

本発明は、前記従来の課題を解決するもので、光励起抗菌剤により効率的に活性酸素種を発生させ、低濃度の抗菌剤でも多量の被処理物を除菌、抗菌処理することができ、細菌やカビ類に対して幅広い除菌、抗菌効果を示すことができる除菌装置を提供することを目的とする。   The present invention solves the above-mentioned conventional problems, efficiently generates reactive oxygen species with a photoexcited antibacterial agent, and can disinfect a large amount of an object to be processed even with a low concentration of an antibacterial agent. An object of the present invention is to provide a sterilization apparatus that can exhibit a wide range of sterilization and antibacterial effects against bacteria and molds.

前記課題を解決するために、本発明の除菌装置は、被処理物を収容する収容槽と、光励起作用を有する光励起抗菌剤を溶出させて水に添加する光励起抗菌剤発生手段と、光源と、前記光励起抗菌剤発生手段から発生した光励起抗菌剤添加水を微粒化する微粒化手段を設け、前記微粒化手段により微粒化した光励起抗菌剤添加水に前記光源から光を照射し、前記光励起抗菌剤添加水を前記被処理物に付着させて前記被処理物上の菌を除去することとしたことにより、微粒化した光励起抗菌剤添加水のミストに光照射されるので、ミストからの散乱光が他のミストに照射されるため多量の光を光励起抗菌剤添加水に受けることにより、光励起抗菌剤添加水から効率的にヒドロキシラジカル等の活性酸素種を生成することができる。したがって、活性酸素種による被処理物の菌の除去を効果的に行うことができる。よって、低濃度の抗菌剤でも被処理物を除菌、抗菌処理することができ、細菌やカビ類に対して幅広い除菌、抗菌効果を示すことができる。   In order to solve the above problems, a sterilization apparatus of the present invention includes a storage tank for storing an object to be processed, a photoexcited antibacterial agent generating means for eluting a photoexcited antibacterial agent having a photoexcitation action and adding it to water, a light source, Providing an atomizing means for atomizing the photoexcited antibacterial agent-added water generated from the photoexcited antibacterial agent generating means, irradiating the photoexcited antibacterial agent-added water atomized by the atomizing means with light from the light source, and Since the agent-added water is attached to the object to be treated to remove the bacteria on the object to be processed, the atomized photo-excited antibacterial agent-added water mist is irradiated with light, so scattered light from the mist Since other mists are irradiated to the photoexcited antibacterial agent-added water, active oxygen species such as hydroxy radicals can be efficiently generated from the photoexcited antibacterial agent added water. Therefore, the removal of the bacteria of the to-be-processed object by active oxygen species can be performed effectively. Therefore, even a low concentration antibacterial agent can sterilize and antibacterial treatment, and can exhibit a wide range of sterilization and antibacterial effects against bacteria and fungi.

また、微粒化したミストを被処理物に噴霧するので、光励起抗菌剤の量は少量しか使用せず、乾いた衣類や食器を過度に濡らすことなく被処理物の菌の除去を行うことができる。   In addition, since the atomized mist is sprayed on the object to be treated, only a small amount of the photoexcited antibacterial agent is used, and the bacteria on the object to be treated can be removed without excessively wetting dry clothes and dishes. .

本発明の除菌装置は、ヒドロキシラジカル等の活性酸素種を効率的に生成し、これによる被処理物の菌の除去を効果的に行うことができる。よって、低濃度の抗菌剤でも被処理物を除菌、抗菌処理することができ、細菌やカビ類に対して幅広い除菌、抗菌効果を示すことができる。   The sterilization apparatus of the present invention can efficiently generate reactive oxygen species such as hydroxy radicals, and thereby effectively remove bacteria from the object to be treated. Therefore, even a low concentration antibacterial agent can sterilize and antibacterial treatment, and can exhibit a wide range of sterilization and antibacterial effects against bacteria and fungi.

また、微粒化したミストを被処理物に噴霧するので、光励起抗菌剤の量は少量しか使用せず、乾いた衣類や食器を過度に濡らすことなく被処理物の菌の除去を行うことができる。   In addition, since the atomized mist is sprayed on the object to be treated, only a small amount of the photoexcited antibacterial agent is used, and the bacteria on the object to be treated can be removed without excessively wetting dry clothes and dishes. .

また、微粒化した抗菌剤添加水に光照射するので、設置状態により被処理物に光照射し難い装置においても菌の除去を効果的に行うことができる。   In addition, since the atomized antibacterial agent-added water is irradiated with light, bacteria can be effectively removed even in an apparatus in which it is difficult to irradiate the object to be treated with light depending on the installation state.

第1の発明は、被処理物を収容する収容槽と、光励起作用を有する光励起抗菌剤を溶出させて水に添加する光励起抗菌剤発生手段と、光源と、前記光励起抗菌剤発生手段から発生した光励起抗菌剤添加水を微粒化する微粒化手段を設け、前記微粒化手段により微粒化した光励起抗菌剤添加水に前記光源から光を照射し、前記光励起抗菌剤添加水を前記被処理物に付着させて前記被処理物上の菌を除去することとしたことにより、微粒化した光励起抗菌剤添加水のミストに光照射されるので、ミストからの散乱光が他のミストに照射されるため多量の光を光励起抗菌剤添加水に受けることにより、光励起抗菌剤添加水から効率的にヒドロキシラジカル等の活性酸素種を生成することができる。したがって、活性酸素種による被処理物の菌の除去を効果的に行うことができる。よって、低濃度の抗菌剤でも被処理物を除菌、抗菌処理することができ、細菌やカビ類に対して幅広い除菌、抗菌効果を示すことができる。   1st invention generate | occur | produced from the storage tank which accommodates a to-be-processed object, the photoexcitation antibacterial agent generation means which elutes the photoexcitation antibacterial agent which has a photoexcitation effect | action, and adds to water, a light source, and the said photoexcitation antibacterial agent generation means Atomization means for atomizing the photoexcited antibacterial agent-added water is provided, the light-excited antibacterial agent-added water atomized by the atomization means is irradiated with light from the light source, and the photoexcited antibacterial agent-added water is attached to the object Since the microbes on the object to be treated are removed to irradiate the mist of the water with the micronized photoexcited antibacterial agent added, the scattered light from the mist is irradiated to other mists. The active oxygen species such as hydroxy radicals can be efficiently generated from the photoexcited antibacterial agent-added water by receiving the light of the photoexcited antibacterial agent added water. Therefore, the removal of the bacteria of the to-be-processed object by active oxygen species can be performed effectively. Therefore, even a low concentration antibacterial agent can sterilize and antibacterial treatment, and can exhibit a wide range of sterilization and antibacterial effects against bacteria and fungi.

また、微粒化したミストを被処理物に噴霧するので、光励起抗菌剤の量は少量しか使用せず、乾いた衣類や食器を過度に濡らすことなく被処理物の菌の除去を行うことができる。   In addition, since the atomized mist is sprayed on the object to be treated, only a small amount of the photoexcited antibacterial agent is used, and the bacteria on the object to be treated can be removed without excessively wetting dry clothes and dishes. .

また、微粒化した抗菌剤添加水に光照射するので、設置状態により被処理物に光照射し難い装置においても菌の除去を効果的に行うことができる。   In addition, since the atomized antibacterial agent-added water is irradiated with light, bacteria can be effectively removed even in an apparatus in which it is difficult to irradiate the object to be treated with light depending on the installation state.

第2の発明は、特に、第1の発明の微粒化手段を超音波霧化方式により霧化することとしたことにより、光励起抗菌剤添加水を粒径1〜10μmのミストに安定して微粒化することができるので、添加水中の光励起抗菌剤にさらに効果的に光照射することができるため、活性酸素種を効率良く発生し被処理物の除菌をさらに向上することができる。   In the second invention, in particular, the atomization means of the first invention is atomized by the ultrasonic atomization method, so that the water excited with the photoexcited antibacterial agent is stably atomized into a mist having a particle diameter of 1 to 10 μm. Therefore, since the photoexcited antibacterial agent in the added water can be irradiated with light more effectively, active oxygen species can be efficiently generated and sterilization of the object to be treated can be further improved.

第3の発明は、特に、第1の発明または第2の発明において、微粒化手段により微粒化した光励起抗菌剤添加水を微細化する微細化手段を備え、前記微細化手段により微細化した抗菌剤添加水を被処理物に付着させて前記被処理物上の菌を除去することとしたことにより、さらに粒径の小さいミストを発生することができるので、光励起抗菌剤添加水中の光励起抗菌剤にさらに効果的に光照射することができるため、活性酸素種を効率良く発生し被処理物の菌の除去をさらに向上することができる。   In particular, the third invention is provided with a finer means for refining the photoexcited antibacterial agent-added water atomized by the finer means in the first or second invention, and the antibacterial refined by the finer means Since the agent-added water is attached to the object to be treated to remove the bacteria on the object to be treated, mist having a smaller particle size can be generated. Therefore, the active oxygen species can be efficiently generated, and the removal of bacteria from the object to be processed can be further improved.

第4の発明は、特に、第3の発明の微細化手段を微粒化手段で微粒化した光励起抗菌剤添加水に電圧を印加する構成としたことにより、光励起抗菌剤添加水を粒径100〜9000nmのミストに安定して微細化することができるので、添加水中の光励起抗菌剤にさらに効果的に光照射することができるため、活性酸素種を効率良く発生し被処理物の除菌をさらに向上することができる。   In the fourth invention, in particular, the fine excitation means of the third invention is configured to apply a voltage to the photoexcited antibacterial agent-added water atomized by the atomization means. Since it can be stably miniaturized to 9000 nm mist, the photoexcited antibacterial agent in the added water can be irradiated with light more effectively. Can be improved.

第5の発明は、特に、第1〜第4のいずれかひとつの発明において、光源は紫外光を照射することとしたことにより、光励起抗菌剤に対して光エネルギーの高い短波長の光が照射されるので、活性酸素種を効率よく発生し被処理物の菌の除去をさらに向上することができる。   In the fifth invention, in particular, in any one of the first to fourth inventions, the light source is irradiated with ultraviolet light, so that the light-excited antibacterial agent is irradiated with light having a short wavelength with high light energy. Therefore, reactive oxygen species can be efficiently generated and the removal of bacteria in the object to be processed can be further improved.

第6の発明は、特に、第1〜第5のいずれかひとつの発明の光源をLEDとしたことにより、光源の設置スペースのコンパクト化が図れ、安全性と長期耐久性を確保することができる。   In the sixth aspect of the invention, in particular, the light source of any one of the first to fifth aspects is an LED, so that the installation space for the light source can be made compact, and safety and long-term durability can be ensured. .

第7の発明は、特に、第1〜第6のいずれかひとつの発明において、光励起作用のある光励起抗菌剤をAgとしたことにより、光照射による励起が起こりやすく活性酸素種の発生が効率よく行われると共に、Ag自身の抗菌性が高いので、被処理物の菌の除去を効果
的に行うことができる。
In the seventh invention, in particular, in any one of the first to sixth inventions, the photoexcited antibacterial agent having photoexcitation action is Ag, so that excitation by light irradiation is likely to occur and the generation of active oxygen species is efficiently performed. Since the antibacterial property of Ag itself is high, it is possible to effectively remove bacteria from the object to be processed.

第8の発明は、特に、第1〜第7のいずれかひとつの発明の除菌装置を洗濯機に用いることにより、ヒドロキシラジカル等の活性酸素種と抗菌性の高いAgのミストを洗濯物に付着することができるので、洗濯物に付着した細菌やカビ類の除去を効果的に行うことができる。また、乾いた衣類についても過度に濡らすことなく菌の除去を行うことができる。   In the eighth invention, in particular, by using the sterilization apparatus according to any one of the first to seventh inventions in a washing machine, active oxygen species such as hydroxy radicals and Ag mist having high antibacterial properties are added to laundry. Since it can adhere, the bacteria and mold | fungi adhering to the laundry can be removed effectively. In addition, bacteria can be removed from excessively wet clothes.

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. In addition, this invention is not limited by this embodiment.

(実施の形態1)
図1に、本発明の第1の実施の形態の除菌装置である洗濯機の断面図を示す。
(Embodiment 1)
In FIG. 1, sectional drawing of the washing machine which is the microbe elimination apparatus of the 1st Embodiment of this invention is shown.

図2には、本発明の第1の実施の形態の光励起抗菌剤発生手段と微粒化手段と微細化手段の断面図を示す。   FIG. 2 is a cross-sectional view of the photoexcited antibacterial agent generating means, atomizing means, and miniaturizing means according to the first embodiment of the present invention.

図1において、洗濯機本体1は、外槽2とその外槽2内に回転自在に配され内槽3を内蔵しており、外槽2と内槽3から衣類を収容する収容槽4を形成している。外槽2の下部には排水路5の一端を接続し、排水路5には排水弁6を接続して収容槽4内の洗濯水を排水するようにしている。   In FIG. 1, a washing machine body 1 includes an outer tub 2 and an inner tub 3 that is rotatably arranged in the outer tub 2, and a storage tub 4 that stores clothes from the outer tub 2 and the inner tub 3. Forming. One end of a drainage channel 5 is connected to the lower part of the outer tub 2, and a drain valve 6 is connected to the drainage channel 5 to drain the washing water in the storage tub 4.

収容槽4への給水は、洗剤や柔軟剤を投入する洗剤ケース7が設置されているメイン給水経路となる第1給水路8から給水弁9の開閉によって給水される。   Water is supplied to the storage tub 4 by opening and closing the water supply valve 9 from the first water supply path 8 serving as a main water supply path in which a detergent case 7 into which detergent and softening agent are introduced.

図2に示すように、光励起抗菌剤発生手段10と微粒化手段11は、第1給水路8から分岐した第2給水路12の経路途中に設けられている。第1給水路8と第2給水路12の分岐部には、切換え弁13が設けられており、第1給水路8と第2給水路12への給水を切り換えている。   As shown in FIG. 2, the photoexcited antibacterial agent generating means 10 and the atomizing means 11 are provided in the middle of the second water supply path 12 branched from the first water supply path 8. A switching valve 13 is provided at a branch portion of the first water supply path 8 and the second water supply path 12 to switch water supply to the first water supply path 8 and the second water supply path 12.

貯留タンク14は、第2給水路12から給水された水を貯留するタンクであり、上部と側面が開口しており上部開口部は給水弁9側と通じており側面開口部は収容槽4と通じている。貯留タンク14の内部に抗菌剤発生手段である銀板状電極10が2枚向かい合わせに配置し、光励起抗菌剤15であるAgを供給することができる。また銀板状電極10の一部には、電圧を印加するための接続端子16を設けている。駆動回路17は、銀板状電極10に一定電流を流す定電流回路を内蔵しており接続端子16と接続されている。   The storage tank 14 is a tank for storing the water supplied from the second water supply channel 12, and the upper and side surfaces are open, the upper opening communicates with the water supply valve 9, and the side opening is the storage tank 4. Communicates. Two silver plate electrodes 10 that are antibacterial agent generating means are disposed inside the storage tank 14 so as to face each other, and Ag that is the photoexcited antibacterial agent 15 can be supplied. Further, a part of the silver plate electrode 10 is provided with a connection terminal 16 for applying a voltage. The drive circuit 17 has a built-in constant current circuit that supplies a constant current to the silver plate electrode 10 and is connected to the connection terminal 16.

貯留タンク14の中に水が存在する状態で銀板状電極10に所定の電流を流すと、電極の陽極側から電極構成金属の金属イオンが溶出する。貯留タンク14では、電流通電の有無で金属イオンの溶出、非溶出を選択できる。また電流や電圧印加時間を制御することにより金属イオンの溶出量を制御できる。銀板状電極10に長時間一方向に電流を流すと、陽極側となっている電極が減耗するとともに、陰極側となっている電極には水中のカルシウムなどの不純物がスケールとして固着する。また電極の成分金属の塩化物及び硫化物が電極表面に発生する。これは光励起抗菌剤発生手段である銀板状電極10の性能低下をきたすので、駆動回路17により、電極の極性を反転して運転できるように構成されている。   When a predetermined current is passed through the silver plate electrode 10 in the presence of water in the storage tank 14, metal ions of the electrode constituent metal are eluted from the anode side of the electrode. In the storage tank 14, elution or non-elution of metal ions can be selected depending on whether or not current is applied. Further, the elution amount of metal ions can be controlled by controlling the current and voltage application time. When a current is passed through the silver plate electrode 10 in one direction for a long time, the electrode on the anode side is depleted and impurities such as calcium in water are fixed as a scale on the electrode on the cathode side. Further, chlorides and sulfides of the component metals of the electrode are generated on the electrode surface. This reduces the performance of the silver plate electrode 10 which is a photoexcited antibacterial agent generating means, and is configured so that the drive circuit 17 can be operated by reversing the polarity of the electrode.

また、貯留タンク14の底部には、微粒化手段である超音波振動子11が設けられている。超音波振動子11は、直流電源を供給する駆動回路17と接続されており、一定電圧が印加されると、貯留タンク14内の水表面から霧化される。   In addition, an ultrasonic transducer 11 that is atomization means is provided at the bottom of the storage tank 14. The ultrasonic vibrator 11 is connected to a drive circuit 17 that supplies DC power, and is atomized from the water surface in the storage tank 14 when a constant voltage is applied.

貯留タンク14の収容槽4に通じる側面開口部の出口の第2給水路12の中には、微細化手段の高電圧印加電極18が設けられている。高電圧印加電極18は、数kVの高電圧を印加する線径数百μmの棒状電極19と接地された円筒状電極20から構成されており、高電圧電源回路21により、高電圧が印加されると電極間でコロナ放電が起こる。この高電圧印加電極18に微粒化手段11で霧化したミストが通過するとミストが微細化される。   In the second water supply path 12 at the outlet of the side opening that communicates with the storage tank 4 of the storage tank 14, a high voltage application electrode 18 of the miniaturization means is provided. The high voltage application electrode 18 is composed of a rod-shaped electrode 19 having a wire diameter of several hundred μm for applying a high voltage of several kV and a grounded cylindrical electrode 20, and a high voltage is applied by the high voltage power supply circuit 21. Then, corona discharge occurs between the electrodes. When the mist atomized by the atomizing means 11 passes through the high voltage application electrode 18, the mist is refined.

高電圧印加電極18の下流側の第2給水路の内壁には、光源であるLED22(波長約350〜400nm)を配設している。LED22によって、微細化されたミストに光が照射される。   An LED 22 (wavelength of about 350 to 400 nm) as a light source is disposed on the inner wall of the second water supply channel on the downstream side of the high voltage application electrode 18. The LED 22 emits light to the miniaturized mist.

内槽3は、有底円筒形に形成され、その周面に外槽2内に通じる多数の通水孔が形成され、内周面の複数位置にバッフル23を設けている。内槽3の回転中心に略傾斜方向に回転軸を設け、内槽3の軸心方向を背面側から正面側に向けて上向きに傾斜させて配設している。この回転軸に、外槽2の背面側に取り付けたモータ24を連結し、内槽3を正転および逆転方向に回転駆動するようにしている。   The inner tub 3 is formed in a bottomed cylindrical shape, a large number of water passage holes communicating with the outer tub 2 are formed on the peripheral surface thereof, and baffles 23 are provided at a plurality of positions on the inner peripheral surface. A rotation axis is provided in a substantially inclined direction at the center of rotation of the inner tub 3, and the axial center direction of the inner tub 3 is inclined upward from the back side to the front side. A motor 24 attached to the back side of the outer tub 2 is connected to the rotating shaft, and the inner tub 3 is rotationally driven in the forward and reverse directions.

外槽2の正面側の上向き傾斜面に設けた開口部を蓋25により開閉自在に覆い、この蓋25を開くことにより洗濯物出入口を通して内槽3内に洗濯物を出し入れすることができる。蓋25を上向き傾斜面に設けているため、洗濯物の出し入れは腰を屈めることなく行うことができ、一般には横向きにある開口部から洗濯物を出し入れする洗濯機の作業性の悪さを改善している。   The opening provided in the upward inclined surface on the front side of the outer tub 2 is covered with a lid 25 so that it can be freely opened and closed. By opening the lid 25, the laundry can be taken in and out of the inner tub 3 through the laundry entrance. Since the lid 25 is provided on the inclined surface upward, the laundry can be taken in and out without bending the waist, and in general, the workability of the washing machine for taking in and out the laundry from the sideways opening is improved. is doing.

次に動作について説明する。   Next, the operation will be described.

蓋25を開いて、収容槽4内に除菌したい乾いた衣類を投入して洗濯機本体1の除菌運転を開始すると、給水弁9が開状態となり水が給水される。このとき、切換え弁13により第1給水路8は閉状態、第2給水路12は開状態となっており、貯留タンク14に水が貯留する。一定量の水が貯留タンク14に貯留されると給水弁9は停止する。   When the lid 25 is opened, dry clothes to be sterilized are put into the storage tub 4 and the sterilization operation of the washing machine body 1 is started, the water supply valve 9 is opened and water is supplied. At this time, the first water supply path 8 is closed and the second water supply path 12 is opened by the switching valve 13, and water is stored in the storage tank 14. When a certain amount of water is stored in the storage tank 14, the water supply valve 9 stops.

次に、光励起抗菌剤発生手段である銀板状電極10に駆動回路17から一定電流が流れると、電極の陽極側から電極構成金属の光励起抗菌剤15のAgが溶出する。そして、駆動回路17により微粒化手段である超音波振動子11に一定の電圧が印加されると、貯留タンク14内の光励起抗菌剤添加水が水面から霧化する。このとき霧化された光励起抗菌剤添加水のミストの粒径は1〜10μm程度である。   Next, when a constant current flows from the drive circuit 17 to the silver plate electrode 10 which is a photoexcited antibacterial agent generating means, Ag of the photoexcited antibacterial agent 15 of the electrode constituent metal elutes from the anode side of the electrode. Then, when a certain voltage is applied to the ultrasonic vibrator 11 as the atomization means by the drive circuit 17, the photoexcited antibacterial agent added water in the storage tank 14 is atomized from the water surface. At this time, the particle size of the mist of the atomized photoexcited antibacterial agent-added water is about 1 to 10 μm.

そして、霧化されたミストは高電圧印加電極18に導入される。高電圧電源回路21から高電圧印加電極18の棒状電極19に数kVの高電圧が印加されると、棒状電極19と円筒状電極20の間でコロナ放電が発生する。そして、高電圧印加電極18内に導入されたミストに電荷が帯電する。帯電した電荷量がミストの表面張力よりも大きくなると、ミストは***して微細化する。このとき、微細化され光励起抗菌剤添加水のミスト粒径は100〜900nmになっている。   The atomized mist is introduced into the high voltage application electrode 18. When a high voltage of several kV is applied from the high voltage power supply circuit 21 to the rod electrode 19 of the high voltage application electrode 18, corona discharge is generated between the rod electrode 19 and the cylindrical electrode 20. Then, a charge is charged in the mist introduced into the high voltage application electrode 18. When the charged amount of charge becomes larger than the surface tension of the mist, the mist is split and refined. At this time, the mist particle size of the refined water added with the photoexcited antibacterial agent is 100 to 900 nm.

高電圧印加電極18を通過して微細化されたミストに、光源であるLED22から波長395nmの紫外線が照射される。ミストに光が照射されると光は散乱する。そして、この散乱光は他のミストに照射されさらに繰り返して多重散乱する。ミストは微細化することでその個数は増えるので、光励起抗菌剤添加水のミストに照射される散乱光の光エネルギーは増加する。微細化されたミストに紫外線が照射されると、光励起抗菌剤15のAgは励起状態となり、光触媒作用により活性酸素種であるヒドロキシラジカルを生成する。   The mist that has passed through the high-voltage applying electrode 18 and is miniaturized is irradiated with ultraviolet rays having a wavelength of 395 nm from the LED 22 that is a light source. When the mist is irradiated with light, the light is scattered. And this scattered light is irradiated to other mists, and is further repeatedly subjected to multiple scattering. Since the number of mists increases as the mist is miniaturized, the light energy of the scattered light applied to the mist of the water added with the photoexcited antibacterial agent increases. When the miniaturized mist is irradiated with ultraviolet rays, Ag of the photoexcited antibacterial agent 15 enters an excited state, and generates a hydroxy radical that is an active oxygen species by photocatalysis.

そして、このヒドロキシラジカルと光励起抗菌剤15を含んだ粒径100〜900nmの微細ミストが第2給水路12を通じて収容槽4に導入される。   Then, a fine mist having a particle diameter of 100 to 900 nm containing the hydroxy radical and the photoexcited antibacterial agent 15 is introduced into the storage tank 4 through the second water supply channel 12.

収容槽4においては、モータ24により内槽3が回転駆動し攪拌運転が開始する。内槽3の回転により、収容槽4内に収容された衣類は内槽3の内周面に設けられたバッフル23によって回転方向に持ち上げられ、持ち上げられた適当な高さ位置から落下する攪拌動作が繰り返される。   In the storage tank 4, the inner tank 3 is rotationally driven by the motor 24, and the stirring operation is started. By the rotation of the inner tub 3, the clothes stored in the storage tub 4 are lifted in the rotation direction by the baffle 23 provided on the inner peripheral surface of the inner tub 3, and the stirring operation is performed to drop from the lifted appropriate height position. Is repeated.

そして、収容槽4で攪拌されている衣類の表面には微細ミストが付着する。そして、菌が付着した衣類の表面では、微細ミスト中の光励起抗菌剤15のAgが菌の細胞と反応して死滅する。また、ヒドロキシラジカルがAgでは死滅しない菌やカビ類と反応して死滅する。   And fine mist adheres to the surface of the clothes stirred in the storage tank 4. And on the surface of the clothes to which the bacteria are attached, Ag of the photoexcited antibacterial agent 15 in the fine mist reacts with the cells of the bacteria and is killed. Further, the hydroxy radicals are killed by reacting with fungi and molds that are not killed by Ag.

収容槽4内の衣類は、内槽3の回転により攪拌されるので、微細ミストが偏ることなく衣類全体に付着して菌の除去を行うことができる。所定時間、微細ミストの供給及び攪拌運転が行われると除菌運転は終了する。   Since the clothes in the storage tank 4 are agitated by the rotation of the inner tank 3, the micro mist can adhere to the entire clothes without being biased and bacteria can be removed. When the supply of fine mist and the stirring operation are performed for a predetermined time, the sterilization operation ends.

以上のように、本実施の形態においては、被処理物を収容する収容槽4と、光励起作用を有する光励起抗菌剤15を溶出させて水に添加する光励起抗菌剤発生手段10と、光源23と、光励起抗菌剤発生手段10から発生した光励起抗菌剤添加水を微粒化する微粒化手段11を設け、微粒化手段11により微粒化した光励起抗菌剤添加水に光源22から光を照射し、光励起抗菌剤添加水を被処理物に付着させて被処理物上の菌を除去することとしたことにより、ヒドロキシラジカル等の活性酸素種を効率的に生成し、これによる被処理物の菌の除去を効果的に行うことができる。よって、低濃度の抗菌剤でも被処理物を除菌、抗菌処理することができ、細菌やカビ類に対して幅広い除菌、抗菌効果を示すことができる。   As described above, in the present embodiment, the storage tank 4 that stores the object to be processed, the photoexcited antibacterial agent generating means 10 that elutes the photoexcited antibacterial agent 15 having a photoexcitation action and adds it to water, and the light source 23. The photoexcited antibacterial agent-added water generated from the photoexcited antibacterial agent generating means 10 is provided with atomization means 11, and the light-excited antibacterial agent-added water atomized by the atomizing means 11 is irradiated with light from the light source 22, and photoexcited antibacterial is obtained. By adding agent-added water to the object to be treated and removing the bacteria on the object to be treated, active oxygen species such as hydroxy radicals are efficiently generated, thereby removing the bacteria on the object to be treated. Can be done effectively. Therefore, even a low concentration antibacterial agent can sterilize and antibacterial treatment, and can exhibit a wide range of sterilization and antibacterial effects against bacteria and fungi.

また、微粒化したミストを被処理物に噴霧するので、光励起抗菌剤の量は少量しか使用せず、乾いた衣類や食器を過度に濡らすことなく被処理物の菌の除去を行うことができる。   In addition, since the atomized mist is sprayed on the object to be treated, only a small amount of the photoexcited antibacterial agent is used, and the bacteria on the object to be treated can be removed without excessively wetting dry clothes and dishes. .

以上のように、本発明にかかる除菌装置は、活性酸素種を効率的に生成し、これにより被洗浄物の菌の除去を効果的に行うことができるので、洗濯機や衣類乾燥機、食器洗い機や食器乾燥機等に適用できる。   As described above, the sterilization apparatus according to the present invention can efficiently generate reactive oxygen species and thereby effectively remove the bacteria of the washing object, so that a washing machine, a clothes dryer, Applicable to dishwashers and dish dryers.

本発明の実施の形態1における洗濯機の断面図Sectional drawing of the washing machine in Embodiment 1 of this invention 本発明の実施の形態1の光励起抗菌剤発生手段と微粒化手段と微細化手段の断面図Sectional drawing of the photoexcitation antibacterial agent generation | occurrence | production means, atomization means, and refinement | miniaturization means of Embodiment 1 of this invention 従来の洗濯機の断面図Cross section of a conventional washing machine

符号の説明Explanation of symbols

4 収容槽
8 第1給水路
10 光励起抗菌剤発生手段
11 微粒化手段
12 第2給水路
15 光励起抗菌剤
18 微細化手段
22 LED(光源)
Reference Signs List 4 Storage tank 8 First water supply path 10 Photoexcited antibacterial agent generating means 11 Atomization means 12 Second water supply path 15 Photoexcited antibacterial agent 18 Finer means 22 LED (light source)

Claims (8)

被処理物を収容する収容槽と、光励起作用を有する光励起抗菌剤を溶出させて水に添加する光励起抗菌剤発生手段と、光源と、前記光励起抗菌剤発生手段から発生した光励起抗菌剤添加水を微粒化する微粒化手段を設け、前記微粒化手段により微粒化した光励起抗菌剤添加水に前記光源から光を照射し、前記光励起抗菌剤添加水を前記被処理物に付着させて前記被処理物上の菌を除去することとした除菌装置。 A storage tank for storing an object to be processed, a photoexcited antibacterial agent generating means for eluting a photoexcited antibacterial agent having a photoexcitation action and adding it to water, a light source, and a photoexcited antibacterial agent added water generated from the photoexcited antibacterial agent generating means There is provided atomizing means for atomizing, irradiating light from the light-excited antibacterial agent added water atomized by the atomizing means from the light source, and attaching the photoexcited antibacterial agent-added water to the object to be processed. A sterilization device that removes the above bacteria. 微粒化手段は、超音波霧化方式により霧化することとした請求項1に記載の除菌装置。 The sterilization apparatus according to claim 1, wherein the atomization means is atomized by an ultrasonic atomization method. 微粒化手段により微粒化した光励起抗菌剤添加水を微細化する微細化手段を備え、前記微細化手段により微細化した抗菌剤添加水を被処理物に付着させて前記被処理物上の菌を除去することとした請求項1または2に記載の除菌装置。 It comprises a micronization means for micronizing the photoexcited antibacterial agent-added water atomized by the atomization means, and attaches the antibacterial agent-added water micronized by the micronization means to the object to be treated so that the bacteria on the object to be processed The sterilization apparatus according to claim 1 or 2, which is to be removed. 微細化手段は、微粒化手段で微粒化した光励起抗菌剤添加水に電圧を印加する構成とした請求項3に記載の除菌装置。 The sterilization apparatus according to claim 3, wherein the finer means is configured to apply a voltage to the water added with the photoexcited antibacterial agent atomized by the finer means. 光源は紫外光を照射することとした請求項1〜4のいずれか1項に記載の除菌装置。 The sterilization apparatus according to any one of claims 1 to 4, wherein the light source is irradiated with ultraviolet light. 光源をLEDとした請求項1〜5のいずれか1項に記載の除菌装置。 The sterilization apparatus according to any one of claims 1 to 5, wherein the light source is an LED. 光励起作用のある光励起抗菌剤は、Agであることとした請求項1〜6のいずれか1項に記載の除菌装置。 The sterilization apparatus according to any one of claims 1 to 6, wherein the photoexcited antibacterial agent having photoexcitation action is Ag. 請求項1〜7のいずれか1項に記載の除菌装置を用いた洗濯機。 A washing machine using the sterilization apparatus according to any one of claims 1 to 7.
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WO2020125612A1 (en) * 2018-12-19 2020-06-25 青岛海尔滚筒洗衣机有限公司 Laundry treating apparatus
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JP2021527542A (en) * 2018-06-22 2021-10-14 青島海爾▲滾▼筒洗衣机有限公司Qingdao Haier Drum Washing Machine Co.,Ltd. Clothes processing equipment
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JP2021527542A (en) * 2018-06-22 2021-10-14 青島海爾▲滾▼筒洗衣机有限公司Qingdao Haier Drum Washing Machine Co.,Ltd. Clothes processing equipment
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US20220081821A1 (en) * 2019-01-22 2022-03-17 Qingdao Haier Washing Machine Co., Ltd. Atomizing generator and clothes treatment apparatus comprising the atomizing generator
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