200924853 九、發明說明 【發明所屬之技術領域】 本發明，係有關於靜電霧化裝置及具備該裝置之加熱 送風裝置。 【先前技術】 於先前，作爲靜電霧化裝置，係週知有如同在日本特 φ 開平1 1 -300975號公報中所揭示一般，具備將前端設爲銳 利之形狀的放電極與平板狀之接地電極，並藉由在該當放 電極與接地電極之間施加電壓而在兩電極之間形成電場， 來使被供給至放電極之前端的液體帶電•***並以奈米尺 寸來產生具備有電荷之液體微粒子，再利用在被形成於接 地電極處之電場與帶電之液體微粒子之間所作用的庫倫 力，來使液體微粒子朝向接地電極而飛翔者》 然而，奈米尺寸之液體微粒子，若是在放電極與接地 〇 電極之間所形成的電場越大，則會形成越多量一事，係爲 週知（參考圖1 )。 因此，爲了產生更多的液體微粒子，係有必要在放電 極與接地電極之間產生高電場。 [專利文獻1]日本特開平11-300975號公報 【發明內容】 [發明所欲解決之課題] 然而’在上述先前技術中，由於係使用於端部處具備 -5- 200924853 有略直角之角部的平板狀之接地電極，因此，若是在放電 極與接地電極之間施加電壓並在兩電極間形成電場，則於 該當角部處，會產生電場集中。故而，當欲在放電極與接 地電極之間產生高電場的情況時，會有在相鄰接之電極間 產生漏洩電流之虞。故而，將放電極與接地電極之間的電 場強度提高一事，係爲困難。 因此，本發明，係以得到一種能夠將奈米尺寸之液體 〇 微粒子更多量地產生的靜電霧化裝置及具備該裝置之加熱 送風裝置爲目的。 [用以解決課題之手段] 爲了解決前述課題，申請項第1項之發明，係爲一種 具備有放電極與接地電極，並藉由在該當放電極與接地電 極之間施加電壓，而將被供給至放電極處之液體霧化的靜 電霧化裝置，其特徵爲：在前述接地電極之端部處，係被 〇 形成有將稜角圓化後之曲面部。 申請項第2項之發明，係在申請專利範圍第1項所記 載之靜電霧化裝置中，具備有下述特徵：前述曲面部，係 在前述接地電極之前述放電極側的端部處，於剖面視之時 在放電極側處被形成爲凸狀。 申請項第3項之發明，係爲在如申請項1又或是申請 項2所記載之靜電霧化裝置中，具備有下述特徵：前述曲 面部，係於剖面視之時，涵蓋從前述接地電極之前述放電 極側之面起直到放電極側之面的相反側之面爲止的範圍， -6- 200924853 而被形成爲略半圓弧狀。 申請項4之發明，係爲在如申請項1又或是申請項2 所記載之靜電霧化裝置中，具備有下述特徵：前述接地電 極，係爲具備有略圓形剖面之線狀構件。 申請項第5項之發明，係爲在如申請項1〜4中之任 一項所記載之靜電霧化裝置中，具備有下述特徵：前述接 地電極，係在俯視時而將前述放電極設爲略中心處，同 ❹ 時，設置以前述接地電極之前述放電極側的端部作爲外週 之略圓形的開口部。 申請項第6項之發明，係爲以在加熱送風裝置中，具 備有如申請項1〜5中之任一項所記載之靜電霧化裝置爲 特徵。 [發明之效果] 若藉由申請項1之發明，則藉由在接地電極之端部處 〇 形成將稜角圓化後之曲面部，在接地電極之端部處，邊緣 部份係消失，而能夠對在接地電極處局部性地產生電場集 中一事作緩和。 若藉由申請項2之發明，則藉由在接地電極之端部之 前述放電極側處，形成於剖面視之時在放電極側處成爲凸 狀之曲面部，在接地電極之放電極側的端部處之邊緣部份 係消失，而能夠對在成爲更高電場之接近放電極的部位處 產生電場集中一事作緩和。其結果，能夠將放電極與接地 電極之間的電場強度提高。 200924853 若藉由申請項3之發明，則藉由將曲面部以剖面視之 而設爲略半圓弧狀，由於係亦能夠使在接地電極之放電極 側的面之相反側之面側的端部處之邊緣部份消失，故而， 能夠對在接地電極處局部性地產生電場集中一事作更進一 步的緩和。 若藉由申請項4之發明，則藉由將接地電極以剖面視 之而設爲略圓形，由於能夠涵蓋全週而將邊緣部份消除， 0 因此，能夠對在接地電極處局部性地產生電場集中一事作 更進一步的緩和。 若藉由申請項5之發明，則藉由在接地電極處設置以 放電極側的端部作爲外週之略圓形的開口部，同時，將接 地電極以俯視時而使放電極成爲略中心的方式來作配置， 由於係能夠將接地電極中之最爲接近放電極的區域設爲略 環狀，因此，能夠對電場値變高之部位被局部性地形成一 事作抑制。其結果，能夠對在鄰接電極間產生漏洩電流一 〇 事作更進一步的抑制。 若藉由申請項6之發明，則係可以得到一種具備有能 夠將離子霧更多量地產生的靜電霧化裝置之加熱送風裝 置。 【實施方式】 以下，針對本發明之實施形態，一面參考圖面一面作 詳細說明。 200924853 [第1實施形態] 第1實施形態之靜電霧化裝置1，係具備有：被供給 有水（液體）之柱狀的放電極2、和與放電極2相隔開有 間隔並被作對向配置之接地電極3、和經由導線4而被連 接於放電極2以及接地電極3，並在放電極與接地電極3 之間施加電壓的電壓施加部5、和藉由將放電極2作冷卻 而在放電極2之表面處使大氣中之水分結露的冷卻裝置 〇 6。 放電極2，係爲藉由黃銅等之熱傳導性優良的材料所 形成之略圓柱狀的構件，於其前端部處，係被設置有對被 供給至前端處之液量作規定的略球狀之液體補給部2a。 接地電極3，係如圖2以及圖3中所示一般，被設爲 平板狀且略環狀，在接地電極3之中央部處，係以俯視而 將放電極2設爲略中心，同時，被設置有將接地電極3之 內週側端部（接地電極之放電極側的端部）3c作爲外週的 〇 略圓形之開口部3b。 進而，在第1實施形態中，在接地電極3之與放電極 2相對向的對向面3 d之內週側端部3 c側，係以剖面視之 而被設爲四分之一圓弧狀，並在放電極2側，被形成有凸 之曲面部3a。 亦即是，在第1實施形態中，曲面部3 a，係被形成爲 俯視時將放電極2設爲略中心之略圓環狀。 冷卻裝置6，係藉由身爲半導體熱電交換元件之帕耳 帖元件所構成。具體而言，冷卻裝置6，係具備有：吸收 -9- 200924853 熱之吸熱板6b、和放出熱之放熱板0d、和介於存在於吸 熱板6b與放熱板6d之間’並用以對吸熱板6b側之溫度 與放熱板6d側之溫度間之溫度差作適宜設定的熱導元件 6c。進而，在第1實施形態中’係在放電極2與吸熱板6b 之間，介於存在有將該當放電極2與吸熱板6b之間作電 性絕緣之絕緣板6 a，而當在放電極2與接地電極3之間施 加電壓時，使得在放電極2與吸熱板6b之間不會產生有 0 漏洩電流。又，在冷卻裝置6之放熱板6 d側處，係被設 置有放熱鰭7。而後，藉由將當經由冷卻裝置6而將放電 極2冷卻時所產生之熱量以放熱鰭7來作放熱，而防止放 電極2之冷卻效果的降低。另外，吸熱板6b與放熱板 6d，係經由未圖示之導線而被電性連接於電壓施加部5 處。 若藉由以上之構成，則若是在放電極2與接地電極3 之間施加電壓，則首先，係經由冷卻裝置6而使放電極2 〇 被冷卻。而後’藉由將放電極2之周圍的空氣冷卻並使其 降低至結露點以下之溫度’空氣中之水蒸氣係在放電極2 之表面處成爲水滴並結露。 此時’被供給至放電極2之前端的液體補給部2a處 之水滴，係伴隨著電荷而飛出至空氣中，而後，在漂浮於 高電場中的期間，反覆進行瑞立（rayleigh )***，最 終，係產生3〜lOOnm左右之離子霧μ，並被放出至接地 電極3側。 接下來’針對具備有上述之靜電霧化裝置的加熱送風 -10- 200924853 裝置，以吹風機作爲例子而作說明。 第1實施形態之吹風機10，係如圖4所示一般，在被 形成爲筒狀之殻體16的下部處，可折疊地被安裝有把手 (grip) 28。在此殻體16之後端部處，係被形成有吸入口 15，另一方面，在殼體16之前端部處，係被形成有吐出 口 14，在吸入口 15處被吸入之空氣，係成爲在殻體16之 內部被適當作加熱，並從吐出口 14而被吹出。在第1實 〇 施形態中，於吐出口 14內，係被設置有吐出格子24、和 對從吐出口 14所吹出之風的風向作調節之噴嘴25。又， 在第1實施形態中，係在殻體16之內部，安裝有上述之 靜電霧化裝置1，而於此殼體16之上端部處，係被形成有 與吐出口 14同方向地被開放之放出口 21。而後，係成爲 從此放出口 21來將包含有藉由靜電霧化裝置1所產生之 離子霧Μ的空氣吹出。 又，在殻體16之內部中，係被設置有保持筒23，並 〇 藉由被安裝於此保持筒23處之馬達19、和藉由此馬達而 被作旋轉驅動之風扇17、和對藉由風扇17而從吸入口 15 所吸入之空氣作整流的整流翼18，而形成送風部20。而 後，在送風部20之下流側，係被設置有作爲將空氣作加 熱之加熱部的加熱器22。亦即是，經由風扇丨7之旋轉而 從吸入口 1 5所吸入之空氣，係成爲經由加熱器22而被加 熱，並從吐出口 14而被吹出。 另外，圖4中之符號27，係爲主開關，而符號29， 係爲電源線。 -11 - 200924853 在上述之構成的吹風機10中，藉由驅動風扇17並將 加熱器22通電，而成爲能夠從吐出口 14吹出溫風，且， 成爲能夠將藉由靜電霧化裝置1所產生之離子霧Μ從放出 口 21來放出。 若藉由以上之第1實施形態，則藉由在接地電極3之 與放電極2相對向的對向面3d之內週側端部3c側，設置 以剖面視之而被設爲四分之一圓弧狀，並在放電極2側成 φ 爲凸之曲面部3a，由於在接地電極之放電極2側處，邊緣 部份係消失，因此，能夠使在施加電壓時而局部性地產生 電場集中的事態被緩和。 於此，圖5，係爲展示第1實施形態以及先前例子之 漏洩避免可能電場値與電流値間之關係的圖表。於圖5 中，Π係爲使用有第1實施形態之接地電極的情況時之圖 表，f2係爲使用有先前技術之接地電極的情況時之圖表。 另外，於圖5中，作爲先前技術例，係使用有平板狀且成 φ 爲略環狀，而剖面視之爲略長方形狀的接地電極。亦即 是，圖5，係爲將在放電極側具備有角部之先前技術的接 地電極與在放電極側被形成有凸之曲面部的第1實施形態 之接地電極作比較的圖。若依據此圖表，則當電流値爲一 定時（被施加有特定之電壓時）之漏洩避免可能電場値， 相較於先前技術例（圖5中，A點），本實施形態（圖5 中，B點）的値係成爲較高。 亦即是，藉由在接地電極3之對向面3 d側的內週側 端部3c處，設置於放電極2側爲凸之曲面部3a，能夠將 -12- 200924853 當施加於放電極與接地電極間之電壓爲特定之値的情況時 之可避免漏洩電流之產生的容許電場値，設爲較先前技術 之靜電霧化裝置爲更高。 其結果，由於能夠提高放電極與接地電極間之電場強 度，因此，如圖1中所示一般，能夠將奈米尺寸之被細微 粒子化的離子霧Μ之量增大。 又，藉由容許電場値之增加，係成爲能夠將接地電極 φ 放電極側之距離縮小，而亦能夠達成靜電霧化裝置之小型 化。 又，若藉由第1實施形態，則藉由在接地電極3處設 置以內週側端部3 c作爲外週之略圓形的開口部3 b，同時 將接地電極3以俯視時而使放電極2成爲略中心的方式來 作配置，係能夠將接地電極3中之最爲接近放電極2的前 端之液體補給部2a的區域設爲略環狀，而能夠對電場値 變高之部位被局部性地形成一事作抑制。其結果，能夠對 〇 產生漏洩電流一事作更進一步的抑制。 又，在第1實施形態中，藉由在吹風機10中具備有 能夠將奈米尺寸之被細微粒子化的離子霧Μ之量增大的靜 電霧化裝置1，而成爲能夠得到可以將使毛髮等保持濕潤 成分之離子霧Μ更多量地生成的吹風機。 [第2實施形態] 圖6 ’係爲本發明之第2實施形態的靜電霧化裝置之 剖面圖。另外，第2實施形態之靜電霧化裝置，係具備有 -13- 200924853 與上述第1實施形態之靜電霧化裝置相同的構成要素。因 此’針對該些同樣之構成要素，係附加共通之符號，同 時，省略重複之說明。 第2實施形態之靜電霧化裝置1 a，係如圖6所示一 般’基本上具備有與上述第1實施形態的靜電霧化裝置1 略相同之構成，但是，在接地電極3 A之與放電極2相對 向的對向面3 d之內週側端部3 c側處所形成的曲面部 ❹ 3 a A，係於剖面視之爲略半圓弧狀，此點，係與上述第1 實施形態相異。 具體而言，曲面部3 a A，係於剖面視之，在接地電極 3 A之內週側端部3 c側處，從對向面3 d起而涵蓋該當對 向面3d之相反側的面3e，而以成爲半圓弧狀之方式而被 形成。 而後，與上述第1實施形態同樣的，曲面部3 a A，係 被形成爲俯視時將放電極2設爲略中心之略圓環狀。 〇 就算是經由以上之第2實施形態，亦能夠得到與上述 第1實施形態相同之效果。 又，若藉由第2實施形態，則藉由將曲面部3 a A設爲 略半圓弧狀，不僅是接地電極3A之對向面3d側的端部， 連對向面3d之相反側的面3e之端部處’亦可將邊緣消 除，因此，能夠使電場集中之產生更進一步的緩和。 但是，由於被放出之離子霧Μ係具備有電荷’因此， 若是在接地電極3 Α處產生有電場’則係會作用有將其拉 扯至接地電極3 A側之靜電力。而’此靜電力’由於係以 -14- 200924853 電場成正比，因此，若是在接地電極3A處產生有電場集 中部，則被放出之離子霧Μ，會容易被拉入至電場集中部 處。然而，若藉由第2實施形態，則由於係能夠使對向面 3 d之相反側的面3 e之端部側處的電場集中緩和，因此， 能夠對被放出之離子霧Μ被接地電極3A所捕捉一事作抑 制，故而，能夠對離子霧Μ之放出量的減少作抑制。 0 [第3實施形態] 圖7，係爲本發明之第3實施形態的靜電霧化裝置之 立體圖，圖8，係爲靜電霧化裝置之剖面圖。另外，第3 實施形態之靜電霧化裝置，係具備有與上述第1實施形態 之靜電霧化裝置相同的構成要素。因此，針對該些同樣之 構成要素，係附加共通之符號，同時，省略重複之說明。 第3實施形態之靜電霧化裝置1Β，係如圖7以及圖8 所示一般，基本上具備有與上述第1實施形態之靜電霧化 〇 裝置1爲略同樣之構成，但是，在接地電極1Β係爲具備 有略圓形剖面之線狀構件之點上，係與上述第1實施形態 相異。 在第3實施形態中，此接地電極3 Β，係被形成爲俯 視時將放電極2設爲略中心之略圓環狀。 就算是經由以上之第3實施形態，亦能夠得到與上述 第1以及第2實施形態相同之效果。 又，若藉由第3實施形態，則藉由將接地電極3 Β以 剖面視之而設爲略圓形，不但能夠涵蓋全週而將邊緣部份 -15- 200924853 消除’接地電極3B，係更進而能夠將直到放電極2前端 之液體補給部2a爲止的距離之誤差消除，故而，能夠對 產生電場集中一事作更進一步的緩和。 其結果，能夠將離子霧Μ之放出量更進一步的增加。 進而’由於係使用線狀構件而形成接地電極3Β，因 此’能夠達成製造效率之提升以及製造成本之削減。 以上，雖係針對本發明之靜電霧化裝置以及具備有該 〇 裝置之加熱送風裝置的合適之實施形態作了說明，但是， 本發明係並不被限定於上述實施形態，在不脫離要旨的範 圍內，可採用各種之實施形態。 例如’在上述第1實施形態中，作爲加熱送風裝置， 雖係例示吹風機，但是，係並不限定於吹風機，當具備有 與上述者相同之靜電霧化裝置的情況時，亦可作爲風扇加 熱器等之其他的加熱送風裝置來實施本發明。 又’亦可作爲具備有上述第2以及第3實施形態之靜 ❹ 電霧化裝置的加熱送風裝置而實施本發明。 又’在上述第1〜第3實施形態中，雖係對使接地電 極對向於放電極之情況作了例示，但是，就算是不將接地 電極對向於放電極，亦可實施本發明。 [產業上利用可能性] 若藉由本發明，則可以得到一種能夠將奈米尺寸之液 體微粒子更多量地產生的靜電霧化裝置及具備該裝置之加 熱送風裝置。 -16- 200924853 【圖式簡單說明】 [圖1]圖1，係爲展示電場與細微粒子產生量間之關係 的圖表。 [圖2]圖2，係爲本發明之第1實施形態的靜電霧化裝 置之立體圖。 [圖3]圖3，係爲本發明之第1實施形態的靜電霧化裝 0 置之剖面圖。 [圖4]圖4，係爲身爲本發明之第1實施形態的加熱送 風裝置之其中一例的吹風機之剖面圖。 [圖5 ]圖5，係爲展不本發明以及先則例子之漏洩避免 可能電場値與電流値間之關係的圖表。 [圖6]圖6，係爲本發明之第2實施形態的靜電霧化裝 置之剖面圖。 [圖7]圖7，係爲本發明之第3實施形態的靜電霧化裝 0 置之立體圖。 [圖8]圖8，係爲本發明之第3實施形態的靜電霧化裝 置之剖面圖。 [主要元件符號說明】 1 :靜電霧化裝置 1 A :靜電霧化裝置 1 B :靜電霧化裝置 2 :放電極 -17- 200924853 2a :液體補給部 3 :接地電極 3 A :接地電極 3 a ·曲面部 3aA :曲面部 3 B :接地電極 3 b :開口部 〇 3 c :內週側端部 3 d :對向面 3 e :對向面之相反側之面 4 :導線 5 :電壓施加部 6 :冷卻裝置 6a :絕緣板 6b :吸熱板 〇 6c :熱導元件 6d :放熱板 7 :放熱鰭 10 :吹風機 1 4 :吐出口 15 :吸入口 16 :殼體 1 7 :風扇 1 8 :整流翼 -18 200924853 ❹ :馬達 :送風部 :放出口 :加熱器 :保持筒 :吐出格子 :噴嘴 :主開關 :把手 :電源線 :離子霧 -19-BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrostatic atomization device and a heating air supply device including the same. [Prior Art] As an electrostatic atomization device, as disclosed in Japanese Laid-Open Patent Publication No. Hei No. Hei. No. Hei. No. Hei. No. Hei. An electrode, and an electric field is formed between the electrodes by applying a voltage between the discharge electrode and the ground electrode, so that the liquid supplied to the front end of the discharge electrode is charged, splits, and generates a liquid having a charge in a nanometer size. The microparticles, by utilizing the Coulomb force acting between the electric field formed at the ground electrode and the charged liquid microparticles, to cause the liquid microparticles to fly toward the ground electrode. However, the nanometer-sized liquid microparticles, if at the discharge electrode The larger the electric field formed between the electrode and the grounding electrode, the more it is formed, which is known (refer to Fig. 1). Therefore, in order to generate more liquid fine particles, it is necessary to generate a high electric field between the discharge electrode and the ground electrode. [Patent Document 1] Japanese Laid-Open Patent Publication No. Hei 11-300975 [Invention] [Problems to be Solved by the Invention] However, in the above prior art, since it is used at the end, there is a slightly right angle of -5 to 200924853. Since the flat ground electrode is applied to the ground electrode, if an electric field is applied between the discharge electrode and the ground electrode and an electric field is formed between the electrodes, electric field concentration occurs at the corner portion. Therefore, when a high electric field is to be generated between the discharge electrode and the ground electrode, there is a possibility that a leakage current is generated between adjacent electrodes. Therefore, it is difficult to increase the electric field strength between the discharge electrode and the ground electrode. Accordingly, the present invention has an object of obtaining an electrostatic atomization device capable of generating a larger amount of nano-sized liquid 〇 microparticles and a heating and blowing device including the same. [Means for Solving the Problems] In order to solve the above-mentioned problems, the invention of claim 1 is characterized in that a discharge electrode and a ground electrode are provided, and a voltage is applied between the discharge electrode and the ground electrode. An electrostatic atomization device for atomizing a liquid supplied to a discharge electrode is characterized in that a curved surface portion obtained by rounding an edge is formed at an end portion of the ground electrode. The invention of claim 2, wherein the curved surface portion is at an end portion of the ground electrode on the discharge electrode side, in the electrostatic atomization device according to the first aspect of the invention. When viewed as a cross section, it is formed in a convex shape at the side of the discharge electrode. The invention of claim 3 is characterized in that, in the electrostatic atomization device according to the application item 1 or the application item 2, the curved surface portion is formed from the foregoing The range from the surface on the side of the discharge electrode of the ground electrode to the surface on the opposite side to the surface on the side of the discharge electrode is formed in a substantially semi-arc shape from -6 to 200924853. The invention of claim 4, wherein the grounding electrode is a linear member having a substantially circular cross section, in the electrostatic atomizing device according to the first or second aspect of the invention. . The electrostatic atomization device according to any one of claims 1 to 4, characterized in that the ground electrode is provided with the discharge electrode in a plan view. When it is set to a slightly centered portion, the end portion on the side of the discharge electrode on the side of the ground electrode is provided as a slightly circular opening portion on the outer circumference. The invention of claim 6 is characterized in that the electrostatic atomizing device according to any one of claims 1 to 5 is characterized in that the heating air blowing device is provided. [Effect of the Invention] According to the invention of claim 1, the curved portion having the rounded corner is formed at the end portion of the ground electrode, and the edge portion disappears at the end portion of the ground electrode. It is possible to alleviate the localized electric field concentration at the ground electrode. According to the invention of claim 2, the curved surface portion which is convex at the side of the discharge electrode at the side of the discharge electrode at the end portion of the ground electrode is formed on the discharge electrode side of the ground electrode. The edge portion at the end portion disappears, and it is possible to alleviate the electric field concentration at the portion near the discharge electrode which becomes a higher electric field. As a result, the electric field strength between the discharge electrode and the ground electrode can be improved. According to the invention of claim 3, the curved surface portion is formed in a substantially semi-arc shape by a cross-sectional view, and the surface of the ground electrode on the side opposite to the surface on the discharge electrode side can be made. The edge portion at the end portion disappears, so that the localization of the electric field at the ground electrode can be further alleviated. According to the invention of claim 4, the ground electrode is set to be slightly circular in cross section, and the edge portion can be eliminated by covering the entire circumference, so that it is possible to locally localize the ground electrode. The generation of electric field concentration is further mitigated. According to the invention of claim 5, the end portion on the discharge electrode side is provided as a slightly circular opening portion on the outer circumference of the ground electrode, and the ground electrode is made slightly centered in a plan view. In the arrangement, since the region closest to the discharge electrode among the ground electrodes can be made slightly annular, it is possible to suppress the localization of the portion where the electric field is high. As a result, it is possible to further suppress the occurrence of a leakage current between adjacent electrodes. According to the invention of claim 6, it is possible to obtain a heating air blowing device having an electrostatic atomizing device capable of generating a larger amount of ion mist. [Embodiment] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. [In the first embodiment, the electrostatic atomization device 1 of the first embodiment is provided with a columnar discharge electrode 2 to which water (liquid) is supplied, and a space spaced apart from the discharge electrode 2 to be opposed to each other. The ground electrode 3 disposed, and the voltage applying portion 5 connected to the discharge electrode 2 and the ground electrode 3 via the wire 4, and applying a voltage between the discharge electrode and the ground electrode 3, and the discharge electrode 2 are cooled A cooling device 〇6 for dew condensation of moisture in the atmosphere at the surface of the discharge electrode 2. The discharge electrode 2 is a substantially cylindrical member formed of a material having excellent thermal conductivity such as brass, and is provided with a slightly spherical ball at a front end portion thereof for the amount of liquid supplied to the front end. The liquid replenishing portion 2a. As shown in FIG. 2 and FIG. 3, the ground electrode 3 is generally flat and slightly annular. At the central portion of the ground electrode 3, the discharge electrode 2 is set to a slightly center in a plan view, and An open circular portion 3b having an inner circumferential side end portion (an end portion on the discharge electrode side of the ground electrode) 3c of the ground electrode 3 as an outer circumference is provided. Further, in the first embodiment, the inner peripheral end portion 3c side of the opposing surface 3d of the ground electrode 3 facing the discharge electrode 2 is set to a quarter circle in a cross-sectional view. The curved surface is formed on the side of the discharge electrode 2 with a convex curved surface portion 3a. In other words, in the first embodiment, the curved surface portion 3a is formed in a substantially annular shape in which the discharge electrode 2 is set to have a substantially center in a plan view. The cooling device 6 is constituted by a Peltier element which is a semiconductor thermoelectric exchange element. Specifically, the cooling device 6 is provided with: a heat absorbing plate 6b for absorbing -9-200924853 heat, a heat releasing plate 0d for discharging heat, and a heat absorbing plate 6d between the heat absorbing plate 6b and the heat releasing plate 6d. The temperature difference between the temperature on the side of the plate 6b and the temperature on the side of the heat radiating plate 6d is appropriately set as the heat conducting member 6c. Further, in the first embodiment, 'between the discharge electrode 2 and the heat absorbing plate 6b, there is an insulating plate 6a in which the discharge electrode 2 and the heat absorbing plate 6b are electrically insulated from each other. When a voltage is applied between the electrode 2 and the ground electrode 3, a zero leakage current does not occur between the discharge electrode 2 and the heat absorbing plate 6b. Further, on the side of the heat radiating plate 6d of the cooling device 6, a heat releasing fin 7 is provided. Then, the heat generated when the discharge electrode 2 is cooled by the cooling device 6 is radiated by the heat radiating fin 7, thereby preventing the cooling effect of the discharge electrode 2 from being lowered. Further, the heat absorbing plate 6b and the heat radiating plate 6d are electrically connected to the voltage applying portion 5 via a wire (not shown). According to the above configuration, if a voltage is applied between the discharge electrode 2 and the ground electrode 3, first, the discharge electrode 2 is cooled by the cooling device 6. Then, by cooling the air around the discharge electrode 2 and lowering it to a temperature lower than the dew point, the water vapor in the air becomes a water droplet at the surface of the discharge electrode 2 and dews. At this time, the water droplets supplied to the liquid supply portion 2a at the front end of the discharge electrode 2 are ejected into the air with electric charges, and then rayleigh splits are repeatedly performed while floating in the high electric field. Finally, an ion mist μ of about 3 to 100 nm is generated and discharged to the ground electrode 3 side. Next, the apparatus for heating the air supply -10-200924853 equipped with the above-described electrostatic atomization device will be described by taking a hair dryer as an example. In the hair dryer 10 of the first embodiment, as shown in Fig. 4, a grip 28 is foldably attached to a lower portion of the cylindrical casing 16. At the rear end of the casing 16, a suction port 15 is formed, and on the other hand, at the front end of the casing 16, a discharge port 14 is formed, and the air sucked in the suction port 15 is The inside of the casing 16 is appropriately heated and blown out from the discharge port 14. In the first embodiment, the discharge port 14 is provided with a discharge grid 24 and a nozzle 25 for adjusting the wind direction of the wind blown from the discharge port 14. Further, in the first embodiment, the above-described electrostatic atomization device 1 is attached to the inside of the casing 16, and the upper end portion of the casing 16 is formed in the same direction as the discharge port 14. Open the export 21 . Then, the outlet 21 is taken out to blow out the air containing the ion mist generated by the electrostatic atomizing device 1. Further, in the inside of the casing 16, a holding cylinder 23 is provided, and a motor 19 mounted at the holding cylinder 23, and a fan 17 which is rotationally driven by the motor, and a pair The air blown from the suction port 15 by the fan 17 serves as a rectifying fin 18 to form the air blowing portion 20. Then, on the lower side of the air blowing portion 20, a heater 22 as a heating portion for heating the air is provided. That is, the air taken in from the suction port 15 via the rotation of the fan 丨7 is heated by the heater 22 and blown out from the discharge port 14. In addition, reference numeral 27 in Fig. 4 is a main switch, and reference numeral 29 is a power supply line. -11 - 200924853 In the hair dryer 10 having the above configuration, by driving the fan 17 and energizing the heater 22, the warm air can be blown from the discharge port 14, and the heat can be generated by the electrostatic atomization device 1. The ion smog is discharged from the discharge port 21. According to the first embodiment described above, the inner peripheral side end portion 3c side of the opposing surface 3d facing the discharge electrode 2 of the ground electrode 3 is provided in a cross-sectional view and is set to be a quarter. An arcuate shape and a convex curved surface portion 3a on the side of the discharge electrode 2, the edge portion disappears at the side of the discharge electrode 2 of the ground electrode, so that it can be locally generated when a voltage is applied The state of electric field concentration is alleviated. Here, Fig. 5 is a graph showing the relationship between the electric field 値 and the current 漏 of the leak avoidance in the first embodiment and the prior art. In Fig. 5, the Π is a graph in the case where the ground electrode of the first embodiment is used, and f2 is a graph in the case where the ground electrode of the prior art is used. Further, in Fig. 5, as a prior art example, a ground electrode having a flat shape and having a substantially circular shape and having a substantially rectangular cross section is used. In other words, Fig. 5 is a view comparing a prior art ground electrode having a corner portion on the discharge electrode side and a ground electrode of the first embodiment in which a convex curved surface portion is formed on the discharge electrode side. According to this graph, when the current 値 is constant (when a specific voltage is applied), the leakage avoids possible electric field 値, compared to the prior art example (point A in FIG. 5), this embodiment (in FIG. 5 , point B) is higher. In other words, by providing the curved surface portion 3a on the side of the discharge electrode 2 at the inner circumferential side end portion 3c on the side of the opposing surface 3d of the ground electrode 3, it is possible to apply -12-200924853 to the discharge electrode. The allowable electric field 可 which can prevent the occurrence of the leakage current when the voltage between the ground electrode and the ground electrode is a specific enthalpy is set higher than that of the electrostatic atomizing device of the prior art. As a result, since the electric field intensity between the discharge electrode and the ground electrode can be increased, as shown in Fig. 1, the amount of the ion haze which is finely particle-formed in the nanometer size can be increased. Further, by allowing the electric field to increase, the distance between the ground electrode φ and the electrode side can be reduced, and the size of the electrostatic atomization device can be reduced. Further, according to the first embodiment, the ground electrode 3 is provided with the inner peripheral side end portion 3c as the outer peripheral slightly circular opening portion 3b, and the ground electrode 3 is placed in a plan view. The electrode 2 is disposed so as to be slightly centered, and the region of the ground electrode 3 closest to the liquid supply portion 2a of the tip end of the discharge electrode 2 can be made slightly annular, and the portion where the electric field is high can be Locally formed an inhibition. As a result, it is possible to further suppress the occurrence of leakage current in 〇. Further, in the first embodiment, the electrostatic atomizing device 1 capable of increasing the amount of ionized haze having a fine particle size of nanometer size is provided in the hair dryer 10, and it is possible to obtain hair. A hair dryer that generates a larger amount of ion mist than the wet component. [Second Embodiment] Fig. 6 is a cross-sectional view showing an electrostatic atomization apparatus according to a second embodiment of the present invention. In addition, the electrostatic atomization device of the second embodiment has the same components as those of the electrostatic atomization device of the first embodiment described above. Therefore, the same components are denoted by the same reference numerals, and the description thereof will be omitted. As shown in Fig. 6, the electrostatic atomization device 1a of the second embodiment generally has substantially the same configuration as that of the electrostatic atomization device 1 of the first embodiment, but is provided at the ground electrode 3A. The curved surface portion ❹ 3 a A formed at the inner peripheral end portion 3 c side of the opposing surface 3 d of the opposing electrode 2 is formed in a slightly semi-arc shape in the cross section, and is the first and the first The implementations are different. Specifically, the curved surface portion 3 a A is viewed from the cross section, and is on the inner circumferential side end portion 3 c side of the ground electrode 3 A, and covers the opposite side of the opposite surface 3d from the opposite surface 3 d. The surface 3e is formed in a semi-arc shape. Then, similarly to the first embodiment, the curved surface portion 3 a A is formed in a substantially annular shape in which the discharge electrode 2 is set to have a substantially center in a plan view. 〇 Even in the second embodiment described above, the same effects as those in the first embodiment described above can be obtained. Further, according to the second embodiment, the curved surface portion 3 a A is formed in a substantially semi-arc shape, not only the end portion on the side of the opposing surface 3d of the ground electrode 3A but also on the opposite side of the opposing surface 3d. At the end of the face 3e, the edge can also be eliminated, so that the generation of the electric field concentration can be further alleviated. However, since the ion smog that is emitted has a charge ", if an electric field is generated at the ground electrode 3", an electrostatic force is applied to pull the ground electrode 3A side. Since the "electrostatic force" is proportional to the electric field of -14 - 200924853, if the middle portion of the electric field is generated at the ground electrode 3A, the ion mist that is released is easily pulled into the electric field concentration portion. However, according to the second embodiment, the electric field concentration at the end portion side of the surface 3 e on the opposite side of the opposing surface 3 d can be alleviated, so that the ion smog can be grounded by the ground electrode. Since the capture of 3A is suppressed, it is possible to suppress the decrease in the amount of release of the ion haze. [Third Embodiment] Fig. 7 is a perspective view of an electrostatic atomization apparatus according to a third embodiment of the present invention, and Fig. 8 is a cross-sectional view of the electrostatic atomization apparatus. In addition, the electrostatic atomization device of the third embodiment has the same components as those of the electrostatic atomization device of the first embodiment. Therefore, the same components are denoted by the same reference numerals, and the description thereof will not be repeated. As shown in Fig. 7 and Fig. 8, the electrostatic atomization device 1 of the third embodiment basically has a configuration similar to that of the electrostatic atomizing device 1 of the first embodiment, but is provided at the ground electrode. The point 1 is a point which has a linear member having a substantially circular cross section, and is different from the above-described first embodiment. In the third embodiment, the ground electrode 3 is formed in a substantially annular shape in which the discharge electrode 2 is slightly centered when viewed from above. Even in the third embodiment described above, the same effects as those of the first and second embodiments described above can be obtained. Further, according to the third embodiment, the ground electrode 3 is substantially circular in cross section, and the edge portion -15-200924853 can be eliminated from the entire circumference, and the ground electrode 3B can be eliminated. Further, the error of the distance up to the liquid supply portion 2a at the tip end of the discharge electrode 2 can be eliminated, so that the occurrence of electric field concentration can be further alleviated. As a result, the amount of release of the ion haze can be further increased. Further, since the ground electrode 3 is formed by using the linear member, it is possible to achieve an improvement in manufacturing efficiency and a reduction in manufacturing cost. In the above, the electrostatic atomizing device of the present invention and the heating air blowing device including the same are described. However, the present invention is not limited to the above embodiment, and the present invention is not deviated from the gist. Various embodiments can be employed within the scope. For example, in the above-described first embodiment, the hair dryer is exemplified as the air blower. However, the hair dryer is not limited to the blower. When the electrostatic atomizer similar to the above is provided, it can be heated as a fan. The present invention is embodied by other heating air blowing devices. Further, the present invention can be carried out as a heating air blowing device including the static electrospray device of the second and third embodiments. Further, in the first to third embodiments described above, the case where the ground electrode is opposed to the discharge electrode is exemplified, but the present invention can be carried out even without the ground electrode facing the discharge electrode. [Industrial Applicability] According to the present invention, an electrostatic atomization device capable of generating a larger amount of liquid fine particles of a nanometer size and a heating and blowing device including the same can be obtained. -16- 200924853 [Simple description of the diagram] [Fig. 1] Fig. 1 is a graph showing the relationship between the electric field and the amount of fine particles generated. Fig. 2 is a perspective view showing an electrostatic atomizing device according to a first embodiment of the present invention. Fig. 3 is a cross-sectional view showing the electrostatic atomizing device according to the first embodiment of the present invention. Fig. 4 is a cross-sectional view of a hair dryer which is an example of a heating air blower according to a first embodiment of the present invention. [Fig. 5] Fig. 5 is a graph showing the relationship between the electric field 値 and the current 漏 in the leakage avoidance of the present invention and the prior art. Fig. 6 is a cross-sectional view showing an electrostatic atomizing device according to a second embodiment of the present invention. Fig. 7 is a perspective view showing an electrostatic atomizing device according to a third embodiment of the present invention. Fig. 8 is a cross-sectional view showing an electrostatic atomizing device according to a third embodiment of the present invention. [Explanation of main component symbols] 1 : Electrostatic atomization device 1 A : Electrostatic atomization device 1 B : Electrostatic atomization device 2 : Discharge electrode -17- 200924853 2a : Liquid supply portion 3 : Ground electrode 3 A : Ground electrode 3 a Curved surface portion 3aA: curved surface portion 3B: ground electrode 3b: opening portion 〇3c: inner peripheral side end portion 3d: opposite surface 3e: surface opposite to the opposite side surface 4: wire 5: voltage application Part 6: Cooling device 6a: Insulating plate 6b: Heat absorbing plate 〇 6c: Thermal guiding member 6d: Heat releasing plate 7: Heat releasing fin 10: Hair dryer 1 4: Discharge port 15: Suction port 16: Housing 1 7 : Fan 1 8 : Rectifier wing -18 200924853 ❹ : Motor: air supply part: discharge outlet: heater: hold cylinder: spit out grid: nozzle: main switch: handle: power cord: ion fog -19-