200800405 ^ 九、發明說明： 【發明所屬之技術領域】 • 一種靜電霧化裝置，特別指一種可持續地對對象空間 : 内釋放帶負電微粒子霧之靜電霧化裝置。 【先前技術】 曰本特許公開公報（日本特開2005-131549號）記載著 實施水之靜電霧化來產生帶負電之微粒子水霧之靜電霧 ^ 化裝置。該裝置時，供應給放電電極之水於放電電極之前 端形成泰勒錐，於該泰勒錐產生瑞立***而霧化，產生奈 米級之負離子帶電微粒子水霧（負離子霧）。該霧不但含有 自由基，也具有長壽命，可大量擴散至空間内，而附著滲 透至存在於釋放空間内之物並有效地進行殺菌及脫臭。 然而，將該靜電霧化裝置設置於例如食品保管庫之狹 窄對象空間内，對該對象空間内長時間釋放負離子霧時， _ 有難以安定地產生該負離子之問題。其原因，應該係因為 圍繞對象空間之食品保管庫之外殼之内壁或收容於其内 之物質之表面附著著帶負電之微粒子，放電電極之前端之 上述泰勒錐受到該負電位之影響，而難以形成安定之泰勒 錐。 【發明内容】 有鑑於上述課題，本發明之目的係提供一種靜電霧化 裝置，可不受殘留於對象空間之負電荷之影響，且可長時 間產生安定之帶負電微粒子霧。 5 本發明之靜電霧化裝置具備：放· 放電電極供給液體之液體供給手段；用以對上述 施加高電壓’使上述放電電極之前^及對上述放電電極 而使上述放電電極之前端釋放出帶^出之液體帶負電 電壓源'。本發明之特徵係具備用以^k微粒子霧之高 電電極間歇性地施加負電位之高電電愿源對上述放 對放電電極施加負電位之休息期間：检制器。因此’未 負電荷會自然放電，故可長期地釋故：士於對象空間内之 霧。 文又之帶負電微粒子 本發明之靜電霧化裝置之構成上， 圍之絕對濕度之濕度檢測手段，上广備用以檢測周 之上昇，相對於施加負電位之動作^制器隨著絕對濕度 位之休息期間之比率。存在於對象降低未施加負電 對洚声夕卜曰口口 / 士扣A 曰1之負電荷，隨著絕 度之上叶’早糾間之自然放電 Ϊ;間之狀况’使休息期間成為最適值，進而有效率;;200800405 ^ IX. Description of the invention: [Technical field to which the invention pertains] • An electrostatically atomizing device, in particular, an electrostatically atomizing device that continuously discharges a negatively charged particle mist into a target space. [Prior Art] The electrostatic atomization device for performing electrostatic atomization of water to generate negatively charged fine particle water mist is described in Japanese Laid-Open Patent Publication No. 2005-131549. In the device, the water supplied to the discharge electrode forms a Taylor cone at the front end of the discharge electrode, and the Taylor cone generates a Ruili split and atomizes to generate a nano-sized negative ion charged particle water mist (negative ion mist). The mist not only contains free radicals but also has a long life, and can diffuse into the space in a large amount, and adheres to the substances existing in the release space and effectively sterilizes and deodorizes. However, when the electrostatic atomizing device is installed in, for example, a narrow object space of a food storage, when a negative ion mist is released for a long time in the target space, there is a problem that it is difficult to stably generate the negative ions. The reason for this is that the negatively charged particles are attached to the inner wall of the outer casing of the food storage surrounding the object space or the surface of the material contained therein, and the Taylor cone at the front end of the discharge electrode is affected by the negative potential, which is difficult Form a stable Taylor cone. SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide an electrostatic atomization device which is capable of generating a stable negatively charged fine particle mist for a long period of time without being affected by a negative charge remaining in a target space. [5] The electrostatic atomization device of the present invention includes: a liquid supply means for supplying a liquid to the discharge/discharge electrode; a step of applying a high voltage to the discharge electrode and releasing the front end of the discharge electrode to the discharge electrode ^The liquid has a negative voltage source'. The present invention is characterized in that it has a rest period in which a high electric power source for intermittently applying a negative potential is applied to the high-electrode electrode of the fine particle mist to apply a negative potential to the discharge-discharge electrode: a detector. Therefore, the 'negative charge will naturally discharge, so it can be released for a long time: the fog in the object space. In the composition of the electrostatic atomizing device of the present invention, the humidity detecting means for the absolute humidity is used to detect the rise of the circumference, and the action of the negative potential is relative to the action of applying the negative potential. The ratio of the rest period. Existence in the object reduces the negative charge that is not applied to the 洚 夕 / / / / / / / / / , , , , 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着 随着Optimal value, and thus efficient;
生▼負電微粒子霧。 此外’上述控制器之構成上，亦可以為交互重複進 行：上述料電極為負電位之第丨動作模式；及上述放電 電極為正電位之第2模式。此時’未施加負電位之休息期 間，·可釋放帶正電之帶電微粒子來中和存在於對象空間之 負電荷，故可持續且安定地釋放帶負電微粒子霧。 此外，本發明之靜電霧化装置，亦可具備具有正電位 之離子化針。此時，上述之控制器之構成上，於未對放電 電極施加負電位之期間，可對上述離子化針施加高電壓， 6 200800405 而從離子化針之前端產生正離子，可中和存在於對象空間 \ 之負電荷，進行安定地釋放帶負電霧。 此外，針對產生帶負電微粒子霧之動作期間，應利用 控制器，隨著絕對濕度之上昇，將放電電極或離子化針釋 放正離子之期間之比率設定成較小。 【實施方式】 本發明之靜電霧化裝置係用以產生混合存在著奈米 級之帶負電微粒子及微米級之帶負電微粒子之霧，將該霧 釋放至對象空間，可對存在於對象空間内之物質進行脫 臭、殺菌、分解，而且，可提供適當的濕度。例如，組合 於如第2圖所示之食品保管庫90使用時，奈米級之帶負 電微粒子霧所含有之活性核可進行食品之殺菌及附著於 食品之有害物質之分解，而且，微米級之帶負電微粒子霧 可使保管庫90内之濕度保持於適當值而維持新鮮度。 如第1圖所示，本發明之一實施形態之靜電霧化裝置 係由：前端為放電電極20之霧化喷嘴10;以與放電電極 2 0為相對之方式配置之相對電極3 0，用以對放電電極2 0 及相對電極30之間施加高電壓之高電壓源60 ;以及用以 控制高電壓之值之控制器70 ;所構成。於霧化喷嘴10之 後端，連結著加壓箱4〇，例如，水之貯存於加壓箱40之 液體，經由霧化喷嘴10供給至放電電極20之前端。該加 壓箱40形成將液體供給至放電電極20之液體供給手段。 本發明之靜電霧化裝置除了水以外，尚可使用各種液體， 200800405 然而，本實施形態中，液體係以水為例來進行說明。 供給至放電電極20之前端之水，因為表面張力而形 成水珠，對放電電極20提供例如-8kV之負電位之高電 壓，放電電極20之前端之放電端及相對電極30之間會產 生南電壓電場’而使該水珠帶靜電’從放電電極之前端以 帶電微粒子霧Μ之形式釋放出帶負電之水。對放電電極 20及相對電極30之間，施加高電壓時，庫侖力作用於被 保持於放電電極20之前端之水及相對電極30之間，水之 部份表面會***而形成泰勒錐TC。如此，電荷集中於泰 勒錐TC之前端，而使該部份之電場強度變大，於該部份 所產生之庫侖力也較大，此外，泰勒錐TC會進一步伸長。 其後，庫侖力若超過水W之表面張力，會重複發生泰勒錐 ***（瑞立***），而大量產生奈米級之帶電微粒子水霧。 該霧會隨著從放電電極20朝相對電極30方向流動之離子 風所造成之空氣流而以通過相對電極30之形式釋放。 加壓箱40利用泵52從補給箱50獲得水之補給，以 使加壓箱40内之水位隨時保持一定之方式進行控制，供 給至放電電極20前端之水具有一定之水負荷之作用.。因 此，於加壓箱40，配設著水位感測器42，控制器70以水 位感測器42所檢測之水位隨時保持一定之方式來控制泵 52 ° 霧化喷嘴10係以管體方式形成，形成放電電極20之 前端部為毛細管，從後端之加壓箱40至前端之放電電極 20之部份之内徑，設定成不會產生毛細管現象之尺寸，水 200800405 負荷作用供給至放電電極20前端之水之水珠。霧化喷嘴 10之内徑朝向毛細管之前端部份逐漸縮小，於毛細管之放 電電極前端，水因為表面張力而形成水珠。該水負荷設定 成不會妨礙可利用表面張力形成水珠之值，該水負荷作用 於因為施加高電壓而形成之泰勒錐TC。 然而，泰勒錐TC因為表面張力而保持其形狀，上述 之水負荷若作用於其上，則於電荷集中之最前端以外之表 0 面，也會因為施加高電壓而使泰勒錐之部份表面遭到破壞 而***並飛散。於泰勒錐之最前端以外之部份，因為電荷 集中不如最前端，故***水之能量也較小，結果，主要應 可產生微米級之帶負電微粒子霧。因此，在加壓力作用於 供給至放電電極20前端之水之狀態，此處係利用施加高 電壓，如上面所述，會產生從泰勒錐TC之前端進行*** 之奈米級之帶負電微粒子霧、及從泰勒錐TC之前端以外 之部份進行***之微米級之帶負電微粒子霧。混合存在著 Φ 帶負電微粒子之霧會分別處於擴散狀態並釋放至空間 内，因為利用加壓力持續對放電電極20供給水，故可連 續產生霧。 奈米級之帶負電微粒子霧含有活性核（自由基），利用 該自由基，可對存在於空間内之物質進行殺菌及脫臭、或 有害物質之分解。微米級之帶負電微粒子則會擴散至空間 進行加濕。 改變施加於放電電極20之加壓力，可以調整奈米級 之帶負電微粒子霧、微米級之帶負電微粒子霧之粒徑分 9 200800405 布、及奈米級之帶負電微粒子霧之發生量及微米級之帶負 電微粒子霧之發生量之比例。亦即，調整加壓箱40内之 水位所產生之水負荷，可以選擇粒度分布及發生量之比 例，故可配合使用用途，產生奈米級及微米級之帶電微粒 子之最佳組合之混合霧。 本發明時，奈米級係在於3nm以上、100nm以下之範 圍，微米級係規定在超過0·1μηι、10μιη以下之範圍。 本發明之靜電霧化裝置時，控制器70之構成上，係 使放電電極20前端間歇性地產生帶負電微粒子霧，電源 開關94導通時，如第3圖所示，控制器70交互重複著對 放電電極20施加負電位之高電壓VI之動作期間Τ1、及 未施加電壓之休息期間Τ2。休息期間Τ2時，因為中斷帶 負電微粒子霧之釋放，附著於對象空間之壁面及對象空間 内之物質之表面之負電荷會因為自然放電而消失。因此， 形成於放電電極20前端之泰勒錐，不會受到來自對象空 間之強烈負電荷之影響，而維持於安定之形狀，故可長期 且安定地對對象空間釋放帶負電微粒子霧。 可以適度設定動作期間Τ1及休息時間Τ2，利用休息 期間中之自然放電，在不會導致泰勒錐形狀成為不安定之 程度為止，消除對象空間之負電荷，例如，利用體積電阻 率為1016〜1020(Ω · cm)之聚苯乙烯製之外殼來形成容積 70L之對象空間時，應為T1/T2C =6/1。 此外，本實施形態之靜電霧化裝置之構成上，應具備 用以檢測對象空間内之絕對濕度之濕度檢測手段之濕度 10 200800405 感測器72，控制器70隨著绝對濕度之增力口，而降低相對 於動作期間τι之休息期間T2之比率。絕對濕度若變高， 可促進對象空間S内之負電荷之自然放電，故對應對象空 之狀況使休息期間Τ2具有最適值，可以有效率地產生 帶負電微粒子霧。 用以構成上述靜電霧化敦置之各構件如第4圖及第5 ，所不，係組裝於外殼100。外殼1〇〇係由基座ιι〇及覆 1於其之外罩120所構成’與加壓箱4〇為一體之霧化喷 觜！〇、補給箱50、以及栗52係裝設於基座ιι〇，相對電 極^則保持於外罩120,放電電極20及相對電極30露出 至夕喊100之外部。用以構成高電壓源60及控制器70之 電氣構件係收容於外殼期心於外罩l2G，形成碟認窗 fa透過該確認S 122’可確認由透明㈣卿成之補給 ^内之水位°㈣給㈣，配設著罩蓋54,必要時可 進行水之追加。 圖不之貫施形悲時’係妝^ 托、，士 你將相對電極30配設於放電電 請之w方’而為對放電電極2〇及相對電 : 可將外殼⑽之-部份當做未受限於此’例如’亦 施加高電壓，此時，周圍上ΐ極使用並對放電電極20 電極20之前端釋放出帶電彳敦粒子霧。 攸放兒 如第2圖所示，係將本 a 於用以保管蔬菜等之食品^。之#電霧化裝置組合使用 級之帶電微粒子霧所含有4=管庫90時，利用奈来 居性核（自由基），除了可實施 200800405 食品之殺菌及脫臭、食品所含有史曲 解以外，尚可利用微米級之帶電展樂等之有害物質之分 度之濕度。尤其是，保管蔬菜時，教子霧來使内部保持適 蔬菜之組織内供給大量之微米級：鉍由蔬菜之氣孔，對 蔬菜之鮮度。 帶電微粒子，故可保持 食品保管庫90具備用以使 度調整部92,外面麻設著_^_於特定溫度之溫 95。靜電霧化裝置在電源開關94 94及溫度調整按紐 對保管室91内釋放奈米級之帶f制：執行動作，而 電微粒子霧。 "粒子霧及微米級之帶 食品中之葉菜類若只對葉之# 一 持鮮度，經由葉之氣孔對葉之級織内供可維 〜騎m、短邊侧約為 之氣孔侵入葉之組繃內m ^ Z ] ▼电彳政粒子從葉菜 徑極小，從^對“/*米級之帶電微粒子霧之粒 产為目/ 織内部充份供應轉持葉菜之鮮 ΐ伴持比水分！。然而’因為微米級之帶電微粒子 電微粒子霧更多之水分，經由氣孔侵 此 于 了以補給充份量之水分而雄持鮮度。因 帶電微Ιί霧化裝置組裂於食品保管庫時，應以微米級之 子之產生個數之粒徑分布之尖峰為以下、 為❽.5,〜1.5^之方式調整加壓力及施加電壓。 此外，奈米級之帶電微粒子霧除了進 殺菌及脫臭、及如附著於葉菜之農藥之有害 12 200800405 外，尚可經由氣孔侵入葉菜之組織内來進行組織内之殺菌 及脫臭、及浸透於内部之農藥之分解，此時，應以奈米級 之帶電微粒子霧之產生個數之粒徑分布之尖峰為3nm〜 50nm之方式來調整加壓力及施加電壓。 第6圖係上述實施形態之變形形態，係以未釋放帶負 電微粒子之休息期間T2對放電電極20施加正電位（例 如，+8kV)而釋放帶正電之微粒子霧之方式來構成控制器 70。此時，相對電極30於動作期間T1及休息期間T2時 為接地電位（0V)，對放電電極20交互施加正及負之高電 壓。休息期間T2時產生之帶正電之微粒子中和殘留於對 象空間S之負電荷，故可長期地對對象空間釋放帶負電微 粒子霧。 第7圖係本發明之第2實施形態之靜電霧化裝置。該 靜電霧化裝置除了於對象空間S追加釋放正離子之離子化 針80以外，基本上，係與第1實施形態為相同之構成， 相同構件附與相同番號。 利用與對放電電極20施加負電壓之高電壓源60為另 行配設之高電壓源62，在控制器70之控制下，對離子化 針40施加+ 8kV程度之正電壓，產生電暈放電，藉此， 可對對象空間S内釋放正離子。控制器70如第8圖所示， 於動作期間T1，對放電電極20施加負電位之高電壓VI 使其產生帶負電微粒子霧，於休息期間T2,對離子化針 80施加正電位之高電壓¥2使其產生正離子。因為該正離 子可中和殘留於對象空間S之負電荷，故可繼續產生帶負 13 200800405 電微粒子霧。此外，對離子化針80施加之高電壓，無需 使用其他高電壓源62，亦可取自高電壓源60。 本實施形態亦使用對對象空間S之絕對濕度進行檢測 之濕度感測器72，控制器7〇之構成上，亦隨著絕對濕度 之上昇，降低相對於動作期間T1之休息期間T2之比率。 藉此，可對應對象空間之濕度條件，得到最佳之除電效 果。亦即，對象空間内之濕度愈高，則利用促進殘留於對 象空間内之負電荷之自然放電，並有效地利用與正離子之 中和作用所造成之除電之組合，故可持續而安定地釋放出 帶負電微粒子霧。 此外，濕度感測器72可以使用各種形式之物。例如， 可以使用利用對象空間S内之溫度及相對濕度來計算絕對 溫度之物。此外，將靜電霧化裝置使用於如食品保管庫之 用以維持一定之溫度之機器時，係以使對象空間S内保持 於大致一定之溫度為條件，可使用利用相對溫度檢測絕對 溫度之形式之物。此外，若為使對象空間S内保持大致一 定之濕度之條件，則可以使用利用溫度來檢測絕對溫度之 形式之物。 上述之實施形態係以將本發明之靜電霧化裝置應用 於食品保管庫90時例，然而，亦可應用於例如洗衣機、 乾衣機、食器乾燥機。 此外，上述之實施形態時，係以從放電電極20產生 奈米級之帶負電微粒子霧及微米級之帶負電微粒子霧之 構成為例，然而，本發明並未受限於此，亦可以為只產生 14 200800405 奈米級之帶電微粒子霧之構成。此外，靜電霧化液體除了 可以使用水以外，尚可使用例如由抗菌劑或殺菌劑所構成 之液體。 【圖式簡單說明】 第1圖係本發明之一實施形態之靜電霧化裝置之概略圖。 第2圖係同上之靜電霧化裝置之一使用形態之說明圖。 第3圖係同上之靜電霧化裝置之動作之說明圖。 • 第4圖係同上之靜電霧化裝置之斜視圖。 第5圖係同上之拆除外罩之狀態之斜視圖。 第6圖係同上之靜電霧化裝置之變形形態之動作之說明 圖。 ， 第7圖係本發明之其他之實施形態之靜電霧化裝置之概略 圖。 第8圖係同上之靜電霧化裝置之動作之說明圖。 _ 【主要元件符號說明】 10 霧化喷嘴 12 霧化喷嘴 20 放電電極 30 相對電極 40 加壓箱 42 水位感測器 50 補給箱 52 泵 15 200800405 54 罩蓋 60 南電壓源 62 高電壓源‘ 70 控制器 72 濕度感測器 80 離子化針 90 食品保管庫 91 保管室 92 溫度調整部 94 電源開關 95 溫度調整按鈕 100 外殼 110 基座 120 外罩 122 確認窗Raw ▼ negative electric particle mist. Further, the configuration of the controller may be repeated in an alternating manner: the first electrode operation mode in which the material electrode is at a negative potential; and the second mode in which the discharge electrode is a positive potential. At this time, during the rest period in which no negative potential is applied, the positively charged charged fine particles can be released to neutralize the negative charges existing in the object space, so that the negatively charged fine particle mist can be released stably and stably. Further, the electrostatic atomization device of the present invention may be provided with an ionization needle having a positive potential. In this case, in the configuration of the controller described above, a high voltage can be applied to the ionization needle while a negative potential is not applied to the discharge electrode, and a positive ion is generated from the front end of the ionization needle, which can be neutralized. The negative charge of the object space \ is safely released with a negative electric mist. In addition, during the operation to generate the negatively charged microparticle mist, the controller should be used to set the ratio of the period during which the discharge electrode or the ionization needle releases positive ions as the absolute humidity rises. [Embodiment] The electrostatic atomization device of the present invention is for generating a mist containing negatively charged microparticles of a nanometer order and negatively charged microparticles of a micron order, and releasing the mist to the object space, which can exist in the object space. The substance is deodorized, sterilized, decomposed, and provides appropriate humidity. For example, when used in combination with the food storage 90 shown in FIG. 2, the active core contained in the nano-sized negatively charged microparticle mist can be used for sterilization of foods and decomposition of harmful substances attached to foods, and The negatively charged particulate mist maintains the humidity in the reservoir 90 at an appropriate value to maintain freshness. As shown in Fig. 1, an electrostatic atomization apparatus according to an embodiment of the present invention includes an atomizing nozzle 10 whose front end is a discharge electrode 20, and a counter electrode 30 which is disposed opposite to the discharge electrode 20, for use. It is composed of a high voltage source 60 that applies a high voltage between the discharge electrode 20 and the opposite electrode 30, and a controller 70 that controls the value of the high voltage. At the rear end of the atomizing nozzle 10, a pressurizing tank 4 is connected, for example, water stored in the pressurizing tank 40 is supplied to the front end of the discharge electrode 20 via the atomizing nozzle 10. This pressurizing tank 40 forms a liquid supply means for supplying a liquid to the discharge electrode 20. In the electrostatic atomization device of the present invention, various liquids can be used in addition to water. 200800405 However, in the present embodiment, the liquid system will be described by taking water as an example. The water supplied to the front end of the discharge electrode 20 forms a water droplet due to the surface tension, and supplies a high voltage of a negative potential of, for example, -8 kV to the discharge electrode 20, and a south side between the discharge end of the discharge electrode 20 and the opposite electrode 30. The voltage electric field 'and the water bead electrostatically' releases the negatively charged water from the front end of the discharge electrode in the form of charged microparticle haze. When a high voltage is applied between the discharge electrode 20 and the counter electrode 30, the Coulomb force acts between the water held at the front end of the discharge electrode 20 and the opposite electrode 30, and a part of the surface of the water rises to form a Taylor cone TC. Thus, the electric charge concentrates on the front end of the Taylor cone TC, and the electric field strength of the portion becomes large, and the Coulomb force generated in the portion is also large, and in addition, the Taylor cone TC is further elongated. Thereafter, if the Coulomb force exceeds the surface tension of the water W, the Taylor cone splitting (Rail splitting) is repeated, and a large amount of charged microparticle water mist of the nanometer level is generated. The mist is released by the opposing electrode 30 in accordance with the flow of air caused by the ion wind flowing from the discharge electrode 20 toward the opposite electrode 30. The pressurizing tank 40 receives the replenishment of water from the replenishing tank 50 by the pump 52 so that the water level in the pressurizing tank 40 is kept constant at all times, and the water supplied to the front end of the discharge electrode 20 has a certain water load. Therefore, in the pressure tank 40, a water level sensor 42 is disposed, and the controller 70 controls the pump 52° in such a manner that the water level detected by the water level sensor 42 is kept constant at any time. The atomizing nozzle 10 is formed in a tubular manner. The front end portion of the discharge electrode 20 is formed as a capillary tube, and the inner diameter of the portion from the pressurizing tank 40 at the rear end to the discharge electrode 20 at the front end is set so as not to cause a capillary phenomenon, and water 200800405 is supplied to the discharge electrode under load. 20 water droplets on the front end. The inner diameter of the atomizing nozzle 10 is gradually reduced toward the front end portion of the capillary, and at the front end of the discharge electrode of the capillary, water forms a water droplet due to the surface tension. The water load is set so as not to hinder the use of the surface tension to form a value of the water droplet which acts on the Taylor cone TC formed by applying a high voltage. However, the Taylor cone TC maintains its shape due to the surface tension, and if the above-mentioned water load acts on it, the surface of the surface of the Taylor cone is also applied due to the application of a high voltage on the surface of the surface other than the front end of the charge concentration. Destroyed and split and scattered. Outside the foremost end of the Taylor cone, since the charge concentration is not as good as the foremost end, the energy of splitting water is also small. As a result, it is mainly possible to generate micron-sized negatively charged particles. Therefore, in a state where the pressing force acts on the water supplied to the front end of the discharge electrode 20, by applying a high voltage, as described above, a nano-sized negatively charged particle mist which is split from the front end of the Taylor cone TC is generated. And a micron-sized negatively charged particle mist that splits from a portion other than the front end of the Taylor cone TC. The mist in which Φ negatively charged particles are mixed is in a diffused state and released into the space, respectively, because the supply of pressure continues to supply water to the discharge electrode 20, so that fog can be continuously generated. The nano-sized negatively charged microparticle mist contains an active nucleus (free radical), which can sterilize, deodorize, or decompose harmful substances in the space. Micron-sized negatively charged particles diffuse into space for humidification. By changing the pressing force applied to the discharge electrode 20, the nanometer-sized negatively charged microparticle mist, the micron-sized negatively charged microparticle mist, and the nanometer-sized negatively charged microparticle mist can be adjusted. The ratio of the amount of negatively charged microparticle mist. That is, the water load generated by adjusting the water level in the pressure tank 40 can select the ratio of the particle size distribution and the amount of the generated amount, so that the mixed mist of the optimal combination of the charged particles of the nanometer and the micrometer can be produced in combination with the use. . In the present invention, the nano-scale is in the range of 3 nm or more and 100 nm or less, and the micron-sized system is specified to be in the range of more than 0.1 μm and 10 μm. In the electrostatic atomization device of the present invention, the controller 70 is configured such that the negative electrode particles are intermittently generated at the front end of the discharge electrode 20, and when the power switch 94 is turned on, as shown in FIG. 3, the controller 70 alternately repeats The operation period Τ1 of the high voltage VI to which the negative potential is applied to the discharge electrode 20, and the rest period Τ2 when no voltage is applied. During the rest period of Τ2, the negative charge of the surface of the substance adhering to the wall surface of the object space and the object space due to the release of the negatively charged particle mist is eliminated by the natural discharge. Therefore, the Taylor cone formed at the tip end of the discharge electrode 20 is not affected by the strong negative charge from the target space, and is maintained in a stable shape, so that the negatively charged fine particle mist can be released to the target space for a long period of time. It is possible to appropriately set the operation period Τ1 and the rest time Τ2, and use the natural discharge during the rest period to eliminate the negative charge of the target space until the Taylor cone shape becomes unstable. For example, the volume resistivity is 1016 to 1020. (Ω · cm) of polystyrene shell to form a volume of 70L object space, should be T1/T2C = 6 / 1. Further, the electrostatic atomizing device of the present embodiment is configured to include a humidity 10 200800405 sensor 72 for detecting the humidity of the absolute humidity in the target space, and the controller 70 is increased with the absolute humidity. And reduce the ratio of T2 relative to the rest period τι during the action period. When the absolute humidity is increased, the natural discharge of the negative electric charge in the object space S can be promoted. Therefore, the state of the corresponding object is such that the rest period Τ2 has an optimum value, and the negatively charged fine particle mist can be efficiently generated. The members for constituting the above-described electrostatic atomization device are assembled to the outer casing 100 as shown in Figs. 4 and 5 . The outer casing 1 is an atomized spray that is formed by the base ιι and covering the outer cover 120 and integrated with the pressurized box 4 觜! The cymbal, the supply tank 50, and the pump 52 are attached to the pedestal, and the counter electrode 120 is held by the outer cover 120, and the discharge electrode 20 and the counter electrode 30 are exposed to the outside of the scream 100. The electrical components for constituting the high voltage source 60 and the controller 70 are housed in the outer casing of the outer casing l2G, and the disc recognition window fa is confirmed by the confirmation S 122' to confirm the water level in the supply of the transparent (four) qingcheng (4) For the (4), a cover 54 is provided, and if necessary, water can be added. If you don't have a sorrow, you can't use it. 'System makeup ^ 托,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, The high voltage is also applied as if it is not limited to this 'for example', at this time, the surrounding upper drain is used and the charged Moonton particle mist is released at the front end of the discharge electrode 20 electrode 20.攸放儿 As shown in Figure 2, this is a food used to store vegetables and so on. When the electrospray atomization device of the combination of the electrospray atomization device contains 4 = tube bank 90, the Nile core (free radical) is used, in addition to the sterilization and deodorization of the food of 200800405 and the misinterpretation of the food. It is also possible to use the humidity of the indexing of harmful substances such as micron-sized live music. In particular, when storing vegetables, the mist is taught to supply a large amount of micron-sized material in the tissue that is suitable for the inside of the vegetable: the stomata of the vegetable, the freshness of the vegetable. By charging the fine particles, the food storage 90 can be held so that the degree adjusting unit 92 is provided with a temperature of 95 at a specific temperature. The electrostatic atomizing device releases the nano-scale belt f in the storage chamber 91 at the power switch 94 94 and the temperature adjustment button: the operation is performed, and the electric particles are misted. "Foliage fog and micron-sized leafy foods in the food, if only the leaf of the #一持 freshness, through the leaf's stomata to the leaf of the level of weaving inside the can be dimensioned ~ riding m, the short side of the stomata invaded the leaves Group tension inside m ^ Z ] ▼Electric 彳 粒子 粒子 从 从 从 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ More than moisture!. However, because the micron-sized charged micro-particles are more foggy, they are invaded by the pores to replenish the sufficient amount of water. The charged micro-injection device is cracked in the food storage. When the peak of the particle size distribution of the number of micrometers is set to the following, the pressing force and the applied voltage are adjusted in the manner of ❽.5, 〜1.5^. In addition, the charged microparticle mist of the nanometer level is sterilized and Deodorization, and the harmful effects of pesticides attached to leafy vegetables 12 200800405, it is also possible to invade the tissue of leafy vegetables through the pores to carry out the sterilization and deodorization in the tissue, and the decomposition of pesticides soaked in the interior. Generation of charged microparticle mist at the nanometer level The pressing force and the applied voltage are adjusted so that the peak of the particle diameter distribution is 3 nm to 50 nm. Fig. 6 is a modified form of the above embodiment, and the discharge electrode 20 is applied with a rest period T2 in which the negatively charged fine particles are not released. The controller 70 is configured to release the positively charged fine particle mist at a potential (for example, +8 kV). At this time, the opposite electrode 30 is at the ground potential (0 V) during the operation period T1 and the rest period T2, and interacts with the discharge electrode 20. The positive and negative high voltages are applied, and the positively charged microparticles generated during the rest period T2 neutralize the negative electric charge remaining in the object space S, so that the negatively charged microparticle mist can be released to the object space for a long time. The electrostatic atomization device of the second embodiment is basically the same as the first embodiment except that the ionization needle 80 for releasing positive ions is added to the target space S, and the same member is attached to the same A high voltage source 62 that is separately applied to the discharge electrode 20 is a high voltage source 62 that is separately disposed, and under the control of the controller 70, the ionization needle 40 is applied to an extent of +8 kV. The positive voltage generates a corona discharge, whereby positive ions can be released in the object space S. As shown in Fig. 8, the controller 70 applies a high voltage VI of a negative potential to the discharge electrode 20 during the operation period T1 to generate With a negative electric particle mist, a high voltage of a positive potential of ¥2 is applied to the ionization needle 80 during the rest period to generate a positive ion. Since the positive ion can neutralize the negative charge remaining in the object space S, the band can continue to be generated. Negative 13 200800405 Electron particle mist. In addition, the high voltage applied to the ionization needle 80 does not need to use other high voltage source 62, and can also be taken from the high voltage source 60. This embodiment also uses the absolute humidity of the object space S to be detected. The humidity sensor 72 and the controller 7 are also configured to reduce the ratio of the rest period T2 with respect to the operation period T1 as the absolute humidity rises. Thereby, the optimal power removal effect can be obtained according to the humidity condition of the object space. That is, the higher the humidity in the object space, the sustainable discharge is achieved by utilizing the natural discharge that promotes the negative charge remaining in the object space, and effectively utilizing the combination of the neutralization caused by the neutralization of the positive ions. Release the mist with negatively charged particles. Further, the humidity sensor 72 can use various forms of things. For example, an object that calculates the absolute temperature using the temperature and relative humidity in the object space S can be used. Further, when the electrostatic atomizing device is used in a food storage container to maintain a certain temperature, the condition that the absolute temperature is detected by using the relative temperature can be used to maintain the temperature in the object space S at a substantially constant temperature. Things. Further, in order to maintain a predetermined humidity in the target space S, it is possible to use a form in which the temperature is used to detect the absolute temperature. The above embodiment is an example in which the electrostatic atomization device of the present invention is applied to the food storage 90. However, it can also be applied to, for example, a washing machine, a clothes dryer, or a food dryer. Further, in the above-described embodiment, the configuration in which the nano-sized negatively charged fine particle mist and the micron-sized negatively charged fine particle mist are generated from the discharge electrode 20 is taken as an example. However, the present invention is not limited thereto, and may be Only produces 14 of the 200800405 nanometer charged microparticle mist. Further, as the electrostatically atomized liquid, in addition to water, a liquid composed of, for example, an antibacterial agent or a bactericide may be used. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view showing an electrostatic atomization apparatus according to an embodiment of the present invention. Fig. 2 is an explanatory view showing a form of use of one of the electrostatic atomization devices of the above. Fig. 3 is an explanatory view showing the operation of the electrostatic atomizing device of the above. • Figure 4 is an oblique view of the electrostatic atomization device of the same. Fig. 5 is a perspective view showing the state in which the outer cover is removed. Fig. 6 is an explanatory view showing the operation of a modified form of the electrostatic atomizing device of the above. Fig. 7 is a schematic view showing an electrostatic atomization apparatus according to another embodiment of the present invention. Fig. 8 is an explanatory view showing the operation of the electrostatic atomizing device of the above. _ [Main component symbol description] 10 atomizing nozzle 12 atomizing nozzle 20 discharge electrode 30 opposite electrode 40 pressure tank 42 water level sensor 50 supply tank 52 pump 15 200800405 54 cover 60 south voltage source 62 high voltage source ' 70 Controller 72 Humidity sensor 80 Ionization needle 90 Food storage 91 Storage compartment 92 Temperature adjustment section 94 Power switch 95 Temperature adjustment button 100 Housing 110 Base 120 Cover 122 Confirmation window