JP4858111B2 - Washing machine - Google Patents
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- JP4858111B2 JP4858111B2 JP2006315214A JP2006315214A JP4858111B2 JP 4858111 B2 JP4858111 B2 JP 4858111B2 JP 2006315214 A JP2006315214 A JP 2006315214A JP 2006315214 A JP2006315214 A JP 2006315214A JP 4858111 B2 JP4858111 B2 JP 4858111B2
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Description
本発明は、洗濯機で洗う洗濯物や食器洗浄機で洗浄する食器類に付着した菌の除菌、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および除菌方法およびこれを用いた洗濯機、空気調和機、冷蔵庫に関するものである。 The present invention relates to a sterilization apparatus and a sterilization device for sterilization of bacteria attached to laundry to be washed in a washing machine and tableware to be washed by a dishwasher, or sterilization of airborne bacteria in a room or a refrigerator. The present invention relates to a method and a washing machine, an air conditioner, and a refrigerator using the method.
従来、除菌装置には洗濯物等の被処理物の除菌、あるいは、抗菌処理を行う一例として、抗菌性のあるＡｇを利用する以下のような洗濯機がある（例えば、特許文献１参照）。 Conventionally, as an example of performing sterilization of an object to be processed such as laundry or antibacterial treatment in a sterilization apparatus, there is the following washing machine using antibacterial Ag (for example, see Patent Document 1). ).
図４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４に示すように、洗濯機１０１は全自動型のものであり、外箱１０２は直方体形状でその上面には被処理物である洗濯物を投入するための開口部１０３を有している。外箱１０２には、受筒１０４、開口部の上面には蓋１０５を有し、ネジで固定されている。受筒１０４内には、被処理物の撹拌のための内筒１０６およびパルセータ１０７を有し、モータ１０８の働きで、回転する構成となっている。内筒１０６および受筒１０４に注水する際には、水流路１０９からイオン供給ユニット１１０を通して行う。 FIG. 4 shows a cross-sectional view of the washing machine described in the publication. As shown in FIG. 4, the washing machine 101 is of a fully automatic type, and the outer box 102 has a rectangular parallelepiped shape and has an opening 103 on the upper surface for loading the laundry to be processed. . The outer box 102 has a receiving cylinder 104 and a lid 105 on the upper surface of the opening, and is fixed with screws. The bushing 104 has an inner cylinder 106 and pulsator 107 for 撹拌of the object, and the action of the motor 108, is configured to rotate. When water is poured into the inner cylinder 106 and the receiving cylinder 104, it is carried out from the water channel 109 through the ion supply unit 110.
次に、被処理物である洗濯物に除菌、抗菌処理を行う際の動作について説明する。洗濯物の除菌、抗菌を行う際には、水流路９から注水を行う際にイオン供給ユニット１１０を制御し、注水中にＡｇをイオン状態で供給する。このことにより、水の銀イオン濃度は所定の濃度になり、パルセータ１０７および内筒１０６がモータ１０８で撹拌することで、洗濯物に銀イオンが付着し、洗濯物に付着している細菌の除菌を行う。また、洗濯物に付着した銀イオンは洗濯物に残留するので、洗濯後でも洗濯物が細菌の増殖を抑制する効果を有する（抗菌効果）ことになる。
しかしながら、前記従来の構成では、多量の洗濯物等の被処理物を抗菌、あるいは、除菌処理するためには、イオン供給ユニット１１０からは高濃度のＡｇを溶出する必要があり、繰り返し洗濯物をＡｇで処理し続けると洗濯物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 sterilize a large amount of processing objects such as laundry, it is necessary to elute high concentration of Ag from the ion supply unit 110, and the laundry repeatedly There was a problem that the laundry would be discolored if it was continuously treated with Ag.
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.
本発明は、前記従来の課題を解決するもので、低濃度の抗菌材でも多量の洗濯物を除菌、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, and can sterilize and antibacterial a large amount of laundry even with a low concentration of antibacterial material, and exhibits wide sterilization and antibacterial effects against bacteria and molds. An object of the present invention is to provide a sterilization apparatus that can perform such a process.
前記課題を解決するために、本発明の洗濯機は、被処理物を収容し、回転軸が水平または背面側から正面側に向けて上向きに傾斜した収容槽と、前記被処理物に水を供給する水供給手段と、前記水供給手段で供給された水に光励起抗菌材を供給する光励起抗菌材供給手段と、光励起抗菌材添加水を含有した被処理物に波長が３５０〜６６０ｎｍの光を照射する光照射手段と、前記収容槽を回転駆動する駆動手段とを備え、前記光照射手段による光の照射は、濯ぎ脱水工程において、少なくとも前記駆動手段の駆動により前記被処理物が持ち上げられ落下する撹拌動作時に行われるようにしたものである。 In order to solve the above-mentioned problems, a washing machine of the present invention accommodates an object to be processed, and a storage tank in which a rotation shaft is inclined upward from the horizontal side or the back side toward the front side, and water is supplied to the object to be processed. A water supply means for supplying, a light-excited antibacterial material supply means for supplying a light-excited antibacterial material to the water supplied by the water supply means, and light having a wavelength of 350 to 660 nm to an object to be treated containing the light-excited antibacterial material-added water. A light irradiating means for irradiating and a driving means for rotationally driving the storage tank, and the irradiation of light by the light irradiating means is performed by rinsing and dewatering the at least the driving means to drive and drop the object to be processed. This is performed during the stirring operation .
これにより、被処理物に光励起抗菌材が付着し、そこに光源から光が照射されると、光励起抗菌材への光の到達効率が向上し、励起状態になりやすくなるので、水と酸素からヒ
ドロキシラジカルあるいはスーパーオキシド等の活性酸素種の生成効率が向上する。光励起抗菌材自身の除菌・抗菌作用と共に光化学反応によって発生した活性酸素種による酸化作用によって菌を分解することができる。したがって、これらの相乗効果で低濃度の抗菌材で被処理物の除菌・抗菌を効果的に行うことができる。また、活性酸素種による酸化分解を利用するので、抗菌スペクトルを拡げ大腸菌や黄色ブドウ球菌の以外の細菌やカビに対しても効果を発揮することができる。
As a result, when the photoexcited antibacterial material adheres to the object to be processed and light is irradiated from the light source, the light arrival efficiency to the photoexcited antibacterial material is improved, and it becomes easy to be in an excited state. The production efficiency of active oxygen species such as hydroxy radicals or superoxide is improved. The bacteria can be decomposed by the oxidizing action of reactive oxygen species generated by the photochemical reaction together with the sterilization and antibacterial action of the photoexcited antibacterial material itself. Therefore, the synergistic effect of these treatments enables effective sterilization and antibacterial treatment of the object to be processed with a low concentration of antibacterial material. In addition, since oxidative degradation by reactive oxygen species is utilized, the antibacterial spectrum can be broadened to exert effects on bacteria and molds other than E. coli and Staphylococcus aureus.
また、少なくとも濯ぎ脱水工程において被処理物の撹拌動作が行われるため、被処理物の内部に含浸した光励起抗菌材が物理的作用により表面および近傍に移行すると同時に、重なり合った被処理物が撹拌され露出表面が入れ替わるので、光照射装置から発生した光を受けやすくなり、光励起抗菌材での活性酸素種の発生が向上するので除菌、抗菌効果が向上する。In addition, since the workpiece is agitated at least in the rinsing dehydration process, the photoexcited antibacterial material impregnated inside the workpiece is moved to the surface and the vicinity by physical action, and at the same time, the overlapping workpieces are agitated. Since the exposed surface is replaced, it becomes easy to receive light generated from the light irradiation device, and the generation of active oxygen species in the photoexcited antibacterial material is improved, so that the sterilization and antibacterial effects are improved.
本発明の除菌装置は、低濃度の抗菌材で被処理物の除菌、抗菌を短時間に効果的に行うことができる。また、大腸菌や黄色ブドウ球菌以外の細菌やカビに対しても効果を発揮することができる。 The sterilization apparatus of the present invention can effectively perform sterilization and antibacterial treatment of an object to be processed with a low concentration of antibacterial material in a short time. In addition, it can be effective against bacteria and molds other than E. coli and Staphylococcus aureus.
第１の発明の洗濯機は、被処理物を収容し、回転軸が水平または背面側から正面側に向けて上向きに傾斜した収容槽と、前記被処理物に水を供給する水供給手段と、前記水供給手段で供給された水に光励起抗菌材を供給する光励起抗菌材供給手段と、光励起抗菌材添加水を含有した被処理物に波長が３５０〜６６０ｎｍの光を照射する光照射手段と、前記収容槽を回転駆動する駆動手段とを備え、前記光照射手段による光の照射は、濯ぎ脱水工程において、少なくとも前記駆動手段の駆動により前記被処理物が持ち上げられ落下する撹拌動作時に行われるようにしたことにより、光励起抗菌材添加水を被処理物に接触させることで、水に溶出した光励起抗菌材により被処理物に付着している細菌を除菌するとともに、被処理物に付着した光励起抗菌材および収容槽内に供給された光励起抗菌材添加水に光照射手段から光を照射して光触媒反応で放出された電子が水分子と反応し、除菌作用の大きいヒドロキシラジカルあるいはスーパーオキシド等の活性酸素種を生成することにより除菌する。これらの相乗効果により低濃度でも除菌、抗菌効果を発揮することができる。さらに、活性酸素種による酸化分解を利用するので、抗菌スペクトルを拡げ大腸菌や黄色ブドウ球菌以外の細菌やカビに対しても効果を発揮することができる。 A washing machine according to a first aspect of the present invention is a storage machine for storing an object to be processed and having a rotating shaft that is inclined upward from the horizontal or the back side toward the front side, and a water supply means for supplying water to the object to be processed. A light-excited antibacterial material supplying means for supplying the light-excited antibacterial material to the water supplied by the water supply means; a light irradiating means for irradiating light having a wavelength of 350 to 660 nm to the object containing the water containing the light-excited antibacterial material; Drive means for rotationally driving the storage tank, and the light irradiation by the light irradiating means is performed in a rinsing dehydration process at least during a stirring operation in which the workpiece is lifted and dropped by driving the driving means. by the the like, the excitation antibacterial material added water is brought into contact with the object to be treated, with the bacteria to eradication attached to the object to be treated by photoexcitation antibacterial material eluted into water, adhering to the object to be processed Light Hydroxyl radicals or superoxides that have a high sterilizing effect when the photoexcited antibacterial material added water supplied to the antibacterial material and the storage tank is irradiated with light from the light irradiation means and the electrons released by the photocatalytic reaction react with water molecules It is sterilized by generating reactive oxygen species. These synergistic effects can exert sterilization and antibacterial effects even at low concentrations. Furthermore, since oxidative decomposition by reactive oxygen species is used, the antibacterial spectrum can be expanded to exert effects on bacteria and molds other than Escherichia coli and Staphylococcus aureus.
また、濯ぎ脱水工程において被処理物の撹拌動作が行われるため、被処理物の内部に含浸した光励起抗菌材が物理的作用により表面および近傍に移行すると同時に、重なり合った被処理物が撹拌され露出表面が入れ替わるので、光照射装置から発生した光を受けやすくなり、光励起抗菌材での活性酸素種の発生が向上するので除菌、抗菌効果が向上する。In addition, since the workpiece is agitated in the rinsing dehydration step, the photoexcited antibacterial material impregnated inside the workpiece is moved to the surface and the vicinity by physical action, and at the same time, the overlapping workpieces are agitated and exposed. Since the surface is replaced, it becomes easy to receive light generated from the light irradiation device, and the generation of active oxygen species in the photoexcited antibacterial material is improved, so that sterilization and antibacterial effects are improved.
第２の発明は、特に、第１の発明の洗濯機の光励起抗菌材が、光励起作用のある金属元素を少なくともひとつ含有することにより、Ａｇ、Ｚｎ、Ｃｕ等の光励起作用のある金属元素を含有することで、水中に抗菌剤を溶解させやすく、衣類等の被処理物へ抗菌剤を効果的に付着させることができる。 A second invention is, in particular, contains washing machine photoexcitation antibacterial material of the first invention, by containing at least one metallic element having the light excitation effect, Ag, Zn, a metal element having the light excitation effect of Cu, By doing so, the antibacterial agent can be easily dissolved in water, and the antibacterial agent can be effectively adhered to an object to be treated such as clothing.
第３の発明は、特に、第２の発明の洗濯機の光励起抗菌材供給手段が、少なくとも金属を含有する電極を有する電解槽を有し、電気分解により前記金属のイオンを水中に供給する構成としたことにより、電気分解により光励起作用のある金属元素を溶出するので、電流制御することにより、すすぎ水の金属元素の濃度を調整することができ、金属元素の濃度を安定して供給することができる。 A third invention is, in particular, washing machines photoexcitation antibacterial material supply unit of the second invention has a electrolytic cell having an electrode containing at least metals, and supplied ions of the metal to water by electrolysis As a result, the metal element having a photoexcitation action is eluted by electrolysis, so the concentration of the metal element in the rinse water can be adjusted by controlling the current, and the metal element concentration can be supplied stably. Can do .
第４の発明は、特に、第１〜第３のいずれか１つの発明の洗濯機の光励起抗菌材を銀とし、被処理物への銀付着量を０．００１〜０．３μｇ／ｃｍ２としたことにより、洗濯物表面に付着したＡｇからヒドロキシラジカルなどの活性酸素種を効率的生成することができるので、除菌、抗菌効果を向上することができる。また、付着したＡｇによる衣類の変色も問題ない。 In the fourth invention, in particular, the photoexcited antibacterial material of the washing machine according to any one of the first to third inventions is silver, and the amount of silver attached to the object to be processed is 0.001 to 0.3 μg / cm 2 . As a result, active oxygen species such as hydroxy radicals can be efficiently generated from Ag adhering to the laundry surface, so that sterilization and antibacterial effects can be improved. Also, there is no problem with discoloration of clothing due to the adhered Ag.
第５の発明は、特に、第１〜第３の発明の洗濯機が光励起抗菌材を銀とし、水中の銀濃度を０．０１〜５ｐｐｍとしたことにより、除菌、抗菌効果を維持しながら、水に溶解したＡｇの凝集沈殿による除菌、抗菌効率の低下を抑制することができるので、除菌、抗菌を効果的に行うことができる。 In the fifth invention, in particular, the washing machine of the first to third inventions uses silver as the photoexcited antibacterial material, and the silver concentration in the water is 0.01 to 5 ppm, while maintaining the sterilization and antibacterial effect. Since sterilization due to aggregation and precipitation of Ag dissolved in water and a decrease in antibacterial efficiency can be suppressed, sterilization and antibacterial can be effectively performed .
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。 Following, 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）
本発明の除菌装置を洗濯機に用いた場合の実施の形態について、図１を用いて説明する。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た内槽３を内蔵しており、外槽２と内槽３で収容槽である洗濯槽４を形成している。外槽２の端周縁部には光照射手段であるＬＥＤ５（波長約３５０〜６６０ｎｍ）を配設している。外槽２の下部に排水路６の一端を接続し、排水路６には排水弁７を接続して洗濯槽４内の洗濯水を排水するようにしている。洗濯槽４への給水は給水路８の水供給手段である給水弁９を開き、電解槽１０を通って洗濯槽４内に水を給水するものである。
(Embodiment 1)
An embodiment in which the sterilization apparatus of the present invention is used in a washing machine will be described with reference to FIG. In FIG. 1, a washing machine body 1 includes an outer tub 2 and an inner tub 3 that is rotatably disposed in the outer tub 2, and the outer tub 2 and the inner tub 3 serve as a storage tub 4. Is forming. An LED 5 (wavelength: about 350 to 660 nm) serving as a light irradiating means is disposed on the peripheral edge of the outer tub 2. One end of a drainage channel 6 is connected to the lower part of the outer tub 2, and a drainage valve 7 is connected to the drainage channel 6 to drain the washing water in the washing tub 4. The water supply to the washing tub 4 is to supply water into the washing tub 4 through the electrolytic tub 10 by opening the water supply valve 9 which is a water supply means of the water supply passage 8.
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１１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駆動手段であるモータ１２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 11 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 12 which is a driving means 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.
光励起抗菌材供給手段である電解槽１０は、ケース１５内に２枚の銀の板状の電極１６を有し、長手方向の一方の端に水の流入口１７、他方の端に水の流出口１８を備える。ケース１５の内部には、流入口１７から流出口１８へと向かう水流に沿う形で、２枚の板状の電極１６が向かい合わせに配置し、光励起抗菌材である銀をイオンで供給することができる。また、電極１６の一部には、電圧を印加するための接続端子１９を設けている。 The electrolytic cell 10 serving as a photoexcited antibacterial material supply means has two silver plate-like electrodes 16 in a case 15, a water inlet 17 at one end in the longitudinal direction, and a water flow at the other end. An outlet 18 is provided. Inside the case 15, two plate-like electrodes 16 are disposed facing each other along the water flow from the inlet 17 to the outlet 18, and silver as a photoexcited antibacterial material is supplied by ions. Can do. Further, a connection terminal 19 for applying a voltage is provided on a part of the electrode 16.
ケース１５の中に水が存在する状態で電極１６に所定の電圧を印加すると、電極１６の陽極側から電極構成金属の金属イオンが溶出する。電解槽１０では、電圧の印加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。電解槽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。これは電解槽１０の性能低下をきたすので、電極の極性を反転して電極駆動回路を運転できるように構成されている。 When a predetermined voltage is applied to the electrode 16 in a state where water is present in the case 15, metal ions of the electrode constituent metal are eluted from the anode side of the electrode 16. In the electrolytic cell 10, elution or non-elution of metal ions can be selected depending on whether or not voltage is applied. Moreover, the elution amount of metal ions can be controlled by controlling the current and voltage application time. When an electric current is passed through the electrolytic cell 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. Since this causes a decrease in the performance of the electrolytic cell 10, the electrode drive circuit can be operated by reversing the polarity of the electrodes.
外槽２の正面側の上向き傾斜面に設けた開口部を蓋１３により開閉自在に覆い、この蓋１３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１３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 13 so that it can be opened and closed. By opening the lid 13, the laundry can be taken into and out of the inner tub 3 through the laundry entrance. Since the lid 13 is provided on the upward inclined surface, the laundry can be taken in and out without bending the waist, and generally the poor 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。蓋１３を開いて内槽３内に洗濯物及び洗剤を投入して洗濯機本体１の運転を開始させると、外槽２内には給水路８から所定量の注水がなされ、モータ１２により内槽３が回転駆動されて洗濯行程が開始される。内槽３の回転により、内槽３内に収容された洗濯物は内槽３の内周面に設けられたバッフル１１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撹拌動作が繰り返されるので、洗濯物には叩き洗いの作用が及んで洗濯がなされる。 Next, the operation will be described. When the lid 13 is opened and the laundry and detergent are put into the inner tub 3 to start the operation of the washing machine main body 1, a predetermined amount of water is poured into the outer tub 2 from the water supply path 8. The tub 3 is rotationally driven to start the washing process. As the inner tub 3 rotates, the laundry stored in the inner tub 3 is lifted in the rotating direction by the baffle 11 provided on the inner peripheral surface of the inner tub 3, and agitated to fall from a lifted appropriate height position. Since the operation is repeated, the laundry has the effect of tapping and washing.
所要の洗濯時間の後、汚れた洗濯液は排水路６から排出され、内槽３を高速回転させる脱水動作により洗濯物に含まれた洗濯液を脱水し、その後、外槽２内に電解槽１０で生成された銀イオン水を添加した水を給水路８から注水して濯ぎ脱水行程が実施される。この濯ぎ脱水行程においても内槽３内に収容された洗濯物は内槽３の回転によりバッフル１１により持ち上げられて落下する撹拌動作が繰り返されて濯ぎ洗いが実施される。 After the required washing time, the dirty washing liquid is discharged from the drainage channel 6, the washing liquid contained in the laundry is dehydrated by a dehydrating operation that rotates the inner tub 3 at a high speed, and then the electrolytic tub is placed in the outer tub 2. The water to which the silver ion water produced in 10 is added is poured from the water supply channel 8 to perform the rinsing and dehydration process. Also in this rinsing dehydration process, the laundry stored in the inner tub 3 is repeatedly lifted and dropped by the baffle 11 by the rotation of the inner tub 3, and the rinsing is performed.
濯ぎ洗い実施後、濯ぎ液は排水路６から排出され、内槽３を高速回転させる脱水動作により洗濯物に含まれた濯ぎ液を脱水し、洗濯行程が終了する。この濯ぎ脱水行程において、洗濯物および金属イオン水を添加した濯ぎ液に、ＬＥＤ５により光を照射する。 After the rinsing, the rinsing liquid is discharged from the drainage channel 6, and the rinsing liquid contained in the laundry is dehydrated by a dehydrating operation that rotates the inner tub 3 at a high speed, and the washing process is completed. In this rinsing dehydration process, the rinsing liquid to which the laundry and metal ion water are added is irradiated with light by the LED 5.
なお、本実施の形態では、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が、内槽３の回転中心に略水平方向に回転軸を設け、内槽３の軸心方向を略水平方向に配設してもよい。 In the present embodiment, a rotation axis is provided in a substantially inclined direction at the center of rotation of the inner tank 3, and the axial center direction of the inner tank 3 is inclined upward from the back side to the front side. However, a rotation axis may be provided in the substantially horizontal direction at the center of rotation of the inner tub 3, and the axial center direction of the inner tub 3 may be disposed in the substantially horizontal direction.
また、本実施の形態では、外槽２の上端周縁部にＬＥＤを配設しているが、内槽３の回転中心の略延長上の蓋１３に配設してもよい。 Moreover, in this Embodiment, although LED is arrange | positioned at the upper-end peripheral part of the outer tank 2, you may arrange | position to the cover 13 on the substantially extension of the rotation center of the inner tank 3. FIG.
また、電解槽１０では給水後の銀濃度が０．０１ｐｐｍ〜５ｐｐｍになるように洗濯槽４の水の量にあわせて電流ないし電圧を調整している。このことにより、洗濯物の除菌、抗菌性能を維持している。衣類量または注水量が少ない場合には銀濃度を低くし、洗濯物の量または水の量が多い場合には銀濃度が高くなるように制御手段１４で調整している。 Moreover, in the electrolytic cell 10, the electric current thru | or voltage are adjusted according to the quantity of the water of the washing tub 4 so that the silver concentration after water supply may be 0.01 ppm-5 ppm. This maintains the sterilization and antibacterial performance of the laundry. The control means 14 adjusts the silver concentration to be low when the amount of clothing or water injection is small, and to increase when the amount of laundry or water is large.
さらに、制御手段１４では、排水弁７、給水弁９、モータ１２の動作制御を行い、洗い工程、濯ぎ脱水工程の制御を行っている。具体的には、洗い工程および濯ぎ脱水工程で、注水動作、洗い（濯ぎ）動作、排水動作、脱水動作の制御を行っている。 Further, the control means 14 controls the operation of the drain valve 7, the water supply valve 9, and the motor 12, and controls the washing process and the rinsing dehydration process. Specifically, in the washing process and the rinsing dehydration process, the water pouring operation, the washing (rinsing) operation, the draining operation, and the dehydrating operation are controlled.
本実施の形態では、図３に示したように濯ぎ脱水工程（注水、濯ぎ、排水、脱水で構成）を２回行い、それぞれの注水動作時に電解槽１０に通電を行い、銀を給水路９の水に溶解している。また、注水、濯ぎ、排水、脱水時にＬＥＤ５で衣類および銀を溶解した水に光を照射している。 In the present embodiment, as shown in FIG. 3 , the rinsing dehydration step (comprising water injection, rinsing, draining, and dehydration) is performed twice, and the electrolytic cell 10 is energized during each water injection operation to supply silver to the water supply channel 9. Is dissolved in water. Moreover, light is irradiated to the water which melt | dissolved clothing and silver with LED5 at the time of water pouring, rinsing, draining, and dehydrating.
なお、本実施の形態では、除菌、抗菌効果を最大限に発揮するためにすべての濯ぎ脱水工程で銀を溶解し、光を照射したが、濯ぎ脱水工程を複数回行う場合には、少なくともそのうちのいずれか一回で行うことで除菌抗菌効果を発揮することができる。 In the present embodiment, in order to maximize the sterilization and antibacterial effect, silver was dissolved in all the rinsing dehydration steps and irradiated with light. The antibacterial and antibacterial effect can be exhibited by performing any one of them.
さらに、濯ぎ脱水工程の最終回の注水動作時に、電解槽１０から銀を供給すれば、最も効率的に銀を使用し洗濯物の除菌、抗菌を行うことができる。 Furthermore, if silver is supplied from the electrolytic cell 10 during the final water injection operation in the rinsing dehydration step, the laundry can be sterilized and antibacterial using silver most efficiently.
洗濯物の除菌、抗菌処理を行う際には銀の濃度が重要な要因となる。処理衣類の最少量の場合（洗濯槽の水２０Ｌに対して洗濯物０．２ｋｇ）の場合であれば、０．０１ｐｐｍで十分な除菌、抗菌効果を発揮できるが、衣類量が多くなるにしたがって、銀濃度は高くなるが、電解槽１０で水中の銀濃度を上昇させると沈殿が発生し、１〜５ｐｐｍからこの沈殿現象が顕著になり、水に十分に溶解することができなくなる。したがって、効率的に
除菌を行う場合には５ｐｐｍ以下にする必要がある。
The concentration of silver is an important factor in laundry sterilization and antibacterial treatment. In the case of the minimum amount of treated clothing (0.2 kg of laundry for 20 liters of water in the washing tub), 0.01 ppm can exhibit sufficient sterilization and antibacterial effects, but the amount of clothing will increase. Therefore, although the silver concentration is increased, when the silver concentration in the water is increased in the electrolytic cell 10, precipitation occurs, and this precipitation phenomenon becomes remarkable from 1 to 5 ppm and cannot be sufficiently dissolved in water. Therefore, when sterilizing efficiently, it is necessary to make it 5 ppm or less.
また、洗濯物に付着した細菌などの微生物を効果的に除菌、抗菌するためには、光触媒作用でヒドロキシラジカルなどの活性酸素種を生成する必要がある。そのためには洗濯物に付着させる銀の量を０．００１μｇ／ｃｍ２〜０．３０μｇ／ｃｍ２にしている。このことにより付着した銀の浪費を最小限にしながらラジカルを発生させ、洗濯物表面に付着した銀からヒドロキシラジカルなどの活性酸素種を効率的生成することができるので、除菌、抗菌効果を向上することができる。 In order to effectively sterilize and antibacterial microorganisms such as bacteria attached to the laundry, it is necessary to generate reactive oxygen species such as hydroxy radicals by photocatalysis. To do so is the amount of silver is deposited on the laundry to 0.001μg / cm 2 ~0.30μg / cm 2 . As a result, radicals can be generated while minimizing waste of attached silver, and active oxygen species such as hydroxy radicals can be efficiently generated from silver attached to the laundry surface. can do.
なお、本実施の形態では光励起抗菌材として銀を選定し、電解槽１０内に銀の電極を備え、電気分解で水への溶解濃度を調整したが、抗菌作用を有する光励起抗菌材として銀のほかに亜鉛、ニッケル、銅がある。これらを除菌、抗菌したい微生物の対象に応じて使い分けることで最適な除菌・抗菌効果を期待できる。例えば、カビに対しては、亜鉛、藻類については銅、ニッケルが効果的である。 In the present embodiment, silver is selected as the photoexcited antibacterial material, and a silver electrode is provided in the electrolytic cell 10, and the dissolution concentration in water is adjusted by electrolysis. There are also zinc, nickel, and copper. Optimum sterilization and antibacterial effects can be expected by properly using these according to the target of the microorganism to be sterilized and antibacterial. For example, zinc is effective for mold, and copper and nickel are effective for algae.
また、制御手段１４でモータ１２を始動し、内槽２を回転させ、洗濯物を回転させ遠心力により洗濯物内部にはいった銀を含んだ水を表面に移動させることで、銀が洗濯物表面に付着しやすくなる。そして、衣類表面に濃縮された銀の単独の作用によりの洗濯物に付着している細菌を除菌するとともに、表面に移動した銀が光を受けやすくなるので、光触媒反応が活発におこり、ヒドロキシラジカルあるいはスーパーオキシド等の活性酸素種を生成できるので除菌効果が向上する。また、これらの相乗効果により低濃度でも除菌、抗菌効果を発揮することができる。さらに、活性酸素種による酸化分解を利用するので、抗菌スペクトルを拡げ大腸菌や黄色ブドウ球菌の以外の細菌やカビに対しても効果を発揮することができる。 Further, the motor 12 is started by the control means 14, the inner tub 2 is rotated, the laundry is rotated, and the water containing silver that has entered the laundry is moved to the surface by centrifugal force. It becomes easy to adhere to the surface. In addition to sterilizing bacteria attached to the laundry due to the single action of silver concentrated on the clothing surface, the silver that has moved to the surface is more susceptible to light, so the photocatalytic reaction takes place actively and hydroxy Since active oxygen species such as radicals or superoxide can be generated, the sterilization effect is improved. In addition, these synergistic effects can exhibit sterilization and antibacterial effects even at low concentrations. Furthermore, since oxidative decomposition by reactive oxygen species is utilized, the antibacterial spectrum can be expanded to exert effects on bacteria and molds other than Escherichia coli and Staphylococcus aureus.
また、モータ１２による内槽２の回転は光を照射しているときに行われ、洗濯物にくまなく光があたるように内槽２内で洗濯物が転動させる。内槽２の回転または反転動作は、光の照射時にこれと並行して連続的に行うほか、光を照射しているときの一部で動作させてもよく、また、所定の間隔で間欠的に洗濯物が転動させてもよい。 Moreover, rotation of the inner tub 2 by the motor 12 is performed when light is irradiated, and the laundry rolls in the inner tub 2 so that light is applied to the entire laundry. The rotation or reversing operation of the inner tub 2 may be performed continuously in parallel with the light irradiation, or may be operated partly during the light irradiation, or intermittently at predetermined intervals. The laundry may be rolled.
以上のように、本発明にかかる除菌装置および除菌方法は、洗濯物の除菌、抗菌を効果的に行うことができるので、家庭用だけでなく業務用の衛生装置および洗濯機、食器洗浄器などの家電製品へも適用できる。 As described above, since the sterilization apparatus and the sterilization method according to the present invention can effectively perform sterilization and antibacterial of laundry, the sanitary apparatus and washing machine for commercial use as well as household use, tableware It can also be applied to household appliances such as washing machines.
１ 洗濯機本体
２ 外槽
３ 内槽
４ 洗濯槽（収容槽）
５ ＬＥＤ（光照射手段）
８ 給水路
９ 給水弁（水供給手段）
１０ 電解槽（光励起抗菌材供給手段）
１２ モータ（駆動手段）
1 Washing machine body 2 Outer tub 3 Inner tub 4 Washing tub (container tub)
5 LED (light irradiation means)
8 Water supply path 9 Water supply valve (water supply means)
10 Electrolysis tank (photo-excited antibacterial material supply means)
12 Motor (drive means)
Claims (5)
前記光照射手段による光の照射は、濯ぎ脱水工程において、少なくとも前記駆動手段の駆動により前記被処理物が持ち上げられ落下する撹拌動作時に行われるようにした洗濯機。 A storage tank for storing the object to be processed , the rotation axis of which is inclined upward or horizontally from the rear side to the front side, water supply means for supplying water to the object to be processed, and water supplied by the water supply means Photoexcited antibacterial material supplying means for supplying photoexcited antibacterial material to water, light irradiating means for irradiating light having a wavelength of 350 to 660 nm to the object containing the photoexcited antibacterial material-added water, and driving for rotating the storage tank and means,
The light irradiation by the light irradiating means is performed in a rinsing / dehydrating process at least during a stirring operation in which the workpiece is lifted and dropped by driving the driving means .
The washing machine according to any one of claims 1 to 3, wherein the photoexcited antibacterial material is silver and the silver concentration in water is 0.01 to 5 ppm.
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| TW096140968A TW200902790A (en) | 2006-11-14 | 2007-10-31 | Washing machine and washing method |
| KR1020070115441A KR100922670B1 (en) | 2006-11-14 | 2007-11-13 | Washing machine and washing method |
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