200400340 ⑴ 玖、發明說明 【發明所屬之技術領域】 本發明是關於電冰箱。 【先前技術】 以維持食品新鮮度的功能，產生負離子，具有將此澆 灑於食品上的功能之電冰箱，已揭示於日本專利特開平8-1 45 545號公報中。基於將負離子（主要爲〇〇澆灑在食品 上，不會對人體造成不良的影響，並且可以極低的濃度抑 制微生物或黴菌滋生之知識的前提下，在上述公報的發明 中已有所提案。 第13圖是表示記載於上述特開平8- 1 45 545號公報之 具有負離子產生裝置的電冰箱之1例圖。第1 3圖中，1 0 1 爲冷凍室、102爲冷藏室、103爲冷卻室、104爲蔬菜室、 105爲壓縮機、106爲蒸發裝置、107爲風扇（冷氣送風 機）' 108爲負離子產生器，負離子產生器108所產生的 負離子是藉著風扇107，與冷氣同時送入各室內。 但是，由於負離子的產生，電極尤其是交流高電壓作 用的場合，會同時產生臭氧與負離子，而會因臭氧而改變 食品的顏色，或脫色降低新鮮度，尤其是臭氧的氧化力非 常的強，會明顯使得食品的品質降低，因此爲了使臭氧不 在儲藏室內循環，在負離子產生器的附近必需設置正離子 採集電極與臭氧分解觸媒，構成極爲複雜的構造，並且價 格昂貴。因此，上述特開平8- 1 45 545號公報記載的技術 (2) 200400340 是著眼於將直流電壓外加於負離子產生器，使其 臭氧與正離子。 又，上述特開平8- 1 45 545號公報中，在任 室的裏面側配置負離子產生器，其儲藏室以拉出 合時，形成可自由伸縮之電線連接負離子產生 上。 【發明內容】 〔發明所欲解決之課題〕 如上述第13圖所示，離子產生部108是設 天井部的導管內，構成將負離子藉由風扇107送 的場合時，使負離子附著在塑膠製的導管內，會 噴灑食品（尤其是蔬菜室內的蔬菜類）之負離 少，導致除菌、抗菌效果的減少等問題。亦即， 13圖的場合，負離子產生器是設置在較蔬菜室 空氣送風通路之中，因此好不容易產生的負離子 狹窄的通風道中被周圍的塑膠製通道所吸收，導 蔬菜室之負離子的數量極少，降低除菌、抗菌的 題。因此，而有負離子產生器盡可能地接近儲藏 是蔬菜室），有效使用負離子之必要性的建議。 又，儲藏室的裏面側配置負離子產生器的場 負離子噴灑作用的改善，與蔬菜室之拉出式儲藏 同樣必需將可自由伸縮的電線連接在負離子產生 此一來因爲長時間使用使得電線受損，會有導致 不致產生 一的儲藏 方式的場 器的電源 置在設於 入各室內 導致直接 子的量減 構成如第 遠的冷卻 卻在通過 致吐出至 效果等問 室（尤其 合，對於 室的場合 器上，如 接觸不良 (3) (3)200400340 或斷線之虞，又有不能將蔬菜室的收納容器完全拉出水洗 等的問題。 另外，在密閉之蔬菜室內的上部設置獨立的負離子產 生器及送風機，於蔬菜室（構成蔬菜室主體的蔬菜收容 器）外側流過冷卻空氣進行間接冷卻時，會有覆蓋蔬菜收 納容器上部的蔬菜室蓋上，因來自蔬菜等儲藏物所蒸發的 水分結露，滴下至蔬菜收納容器內之儲藏食品上的問題。 因此，爲了防止上述水分的滴下，尋求可確實達成構成上 的實現。 又，如不具備正確之具有負離子產生用電極與正離子 接受電極之負離子產生器構造時，會產生有害的臭氧，導 致蔬菜類等儲藏食品的變色或褪色，加速對蔬菜的傷害等 問題。因此而尋求產生臭氧少的負離子產生器的實現。 另外，在密閉的蔬菜室內的上部設置負離子產生器， 且在構成蔬菜室主體之蔬菜收納容器的上部設置小物品收 納容器的場合，上段之小物品收納容器內的蔬菜類的儲藏 食品容易與負離子接觸，但是在小物品收納容器下側的蔬 菜類收納容器內的蔬菜類儲藏食品則被上段的小物品收納 容器所遮蔽而不能接觸負離子’會有不能長時間維持蔬菜 類的新鮮度等問題。因此’尋求一種即使在構成蔬菜室之 主體的蔬菜收納容器之上部設置小物品收納容器的構成 時，對於小物品收納容器下側之蔬菜收納容器內的蔬菜類 可同樣實現與負離子接觸的構造。並且’上段之小物品收 納容器內儲藏食品堆積如山的狀態下會造成空氣的對流不 -8- (4) (4)200400340 良，不能對於儲藏食品均勻地散佈負離子，因此尋求具有 良好的對流並增加含負離子之空氣流量努力上的實現。 又，在位於蔬菜室（構成蔬菜室爲主體的蔬菜收納容 器）上部的蔬菜室蓋安裝負離子產生器時，爲了保護儲藏 食品或人員操作接觸時導致其負離子產生器之電極的破 損，設置格子狀保護構件，但是根據保護構件的材質會吸 收所產生的負離子降低負離子的數量。因此，作爲上述保 護構件的材質，必需選擇一種不易減少負離子的材質。 又，同樣使蔬菜室以外的儲藏室冷卻之冷氣送風用風 扇兼用作負離子的送入用風扇時，在冬天外氣溫度低時， 連結冰箱的運轉之冷氣送風用風扇的運轉率低，會減少負 離子的送風量，使得負離子產生的效果降低。因此，有具 備一種不受冰箱的運轉率影響之獨立的負離子送入用風扇 的必要性。但是，此時設置獨立的負離子送入用風扇時， 必需要佔據其所需的空間，而減少冰箱的食品儲藏之內容 積，因此尋求一種盡可能不減少其內容積的構造。 又，輸送離子產生器所產生之負離子用的專用之獨立 的風扇是以安裝於蔬菜室蓋之送風機蓋覆蓋時，萬一負離 子送風用的送風機發生異常，而導致在停止狀態時會有疏 忽之虞，在其場合下，會有不能維持儲藏食品的新鮮度而 提早損傷蔬菜的問題。因此，期待一種使用者可以容易辨 識送入負離子用之專用的獨立風扇轉動狀況的構造。 總之，設置導入強制通風冷卻空氣而冷卻的直接冷卻 儲藏室，及不直接將冷卻空氣導入儲藏室內，從周圍間接 -9- (5) (5)200400340 冷卻的間接冷卻儲藏室之電冰箱中，爲適當進行間接冷卻 儲藏室內之食品的新鮮度維持，具有種種的檢討課題。 〔解決課題之手段〕 本發明是有鑑於上述之技術課題所硏創而成，本案代 表性之1的發明中，係採設置強制導入通風冷卻空氣而冷 卻的直接冷卻儲藏室，及在儲藏室內配置收納容器及該收 納容器的收納容器蓋，可間接冷卻上述收納容器內的間接 冷卻儲藏室所構成的電冰箱中，在上述收納容器蓋的上面 設置使上述收納容器內的冷氣循環的循環送風機，及離子 產生器的構成。 【實施方式】 使用圖式說明本發明之實施形態如下。 第1圖〜第12圖是有關本發明之一實施形態的電冰 箱，第1圖爲本實施形態之電冰箱的縱剖面圖，第2圖爲 本實施形態之電冰箱的主要部縱剖面圖，第3圖爲第2圖 中的主要部擴大圖，第4圖是表示構成本實施形態的電冰 箱之蔬菜室主體的收納容器與載置其上之小物品收納容器 的透視圖，第5圖是表示本實施形態的電冰箱之蔬菜室的 空氣回.流說明圖’第6圖是表示本實施形態之電冰箱使用 之負離子產生器之主要部縱剖面，及檢討負離子產生器的 護體高度適應性用之試驗結果的說明圖，第7圖爲本實施 形態的電冰箱使用之負離子產生器的主要部透視圖，第8 -10- (6) (6)200400340 圖是表示本實施形態之電冰箱所使用的負離子產生器及附 設其中之格子狀保護構件的主要部剖面圖，第9圖是表示 檢討附設於本實施形態之電冰箱所使用的負離子產生器之 格子狀保護構件的材料之適應性用的實驗結果說明圖，第 1 0圖是表示檢討附設於本實施形態之電冰箱所使用負離 子產生器的格子狀保護構件材料之適應性用不同材料的物 性値說明圖，第11圖爲本實施形態之電冰箱蔬菜室所使 用負離子產生器與蔬菜室風扇之運轉控制流程圖，第12 圖是表示本實施形態之電冰箱位於上部之冷藏室底面樣子 的主要部透視圖。 第1圖中，1爲電冰箱，2爲門扉開閉式電冰箱（冷藏 儲藏室），3爲抽出式蔬菜室（蔬菜類用的冷藏儲藏室）， 4、5爲抽出式冷凍室，6爲壓縮機，7爲冷藏室2及蔬菜 室3用的風扇（冷氣送風機），8爲冷藏室2及蔬菜室3 用的冷卻器，9爲冷凍室4及冷凍室5用的風扇（冷氣送 風機），10爲冷凍室4及冷凍室5用的冷卻器。本實施 形態中，冷藏室2及冷凍室4與冷凍室5是構成可強制導 入通風冷卻空氣而冷卻的直接冷卻式的儲藏室，蔬菜室3 不直接將冷卻空氣導入設於室內的蔬菜收納容器1 4 (參 閱第2圖），而是形成從蔬菜收納容器14的周圍間接冷 卻之間接冷卻式的儲藏室。並且，本實施形態中，蔬菜室 3雖是配置在電冰箱的中段，但是如採取後述的構造時， 可任意配置蔬菜室的位置。 如第2圖表示，本實施形態的蔬菜室3是位在冷凍庫 -11 - (7) (7)200400340 1的橫隔板1 1與橫隔板12之間。蔬菜室3是包括··與蔬 菜室門1 3 —體形成之可拉出的蔬菜收納容器（構成蔬菜 室爲主體的蔬菜收納容器）1 4 ;覆蓋蔬菜收納容器1 4上 面的蔬菜室蓋1 5 ;保持載置於蔬菜收納容器丨4內的上側 裏面’可拉出蔬菜收納容器14的小物品收納容器（小物 品整理容器）1 6 ;配置在蔬菜室蓋1 5上面的負離子產生 器17;配置在蔬菜式蓋15上面之蔬菜室專用之獨立的蔬 菜室風扇18;及，安裝在蔬菜室蓋15上面，覆蓋負離子 產生裝置17及蔬菜室風扇18的送風機蓋19等所構成。 橫隔板1 1係形成電冰箱1之骨架一部份的同時，具 有吸附冷藏室2的門與蔬菜室門1 3之襯墊的功能，該橫 隔板1 1的內側設有空間。蔬菜室蓋1 5是安裝在橫隔板 1 1的下方，在該蔬菜室蓋1 5的內側上面，配設有負離子 產生器17與蔬菜室風扇18，覆蓋負離子產生器17與蔬 菜室風扇18的送風機蓋19是安裝在蔬菜室蓋15的上 部。即’橫隔板11內側方的扁平空間內密集地收納負離 子產生器17與蔬菜室風扇18及送風機蓋19，並且，並 非與蔬菜室門1 3形成一體可拉出的蔬菜收納容器1 4，而 是在冷藏庫1之固定構件的蔬菜室蓋15上，安裝負離子 產生器1 7與蔬菜室風扇1 8，因此與習知之可拉出的構件 上安裝負離子產生器的構造比較時，不會有電線斷線之 虞，其連線構造也較爲簡單。 此外’送風機蓋19爲了可以從上方辨識蔬菜室風扇 1 8，至少其一部份爲透明或半透明材質所形成，同時位於 -12- (8) (8)200400340 送風機蓋1 9上側的冷藏室2的底板20同樣以透明或半透 明的材質形成。 並且’送風機蓋14的上面，形成以蔬菜室蓋15與送 風機蓋19密閉，將此密閉的蔬菜室3利用上述風扇（冷 氣送風機）7所送出的冷氣，形成從蔬菜收納容器14的 外圍冷卻。 覆蓋蔬菜收納容器1 4上面的蔬菜室蓋1 5上，穿設有 空氣吸入口 15a及吐出口 15b，利用蔬菜室風扇18從吸入 口 15a吸入的空氣（冷氣）是藉著蔬菜室風扇18從吐出 口 15b噴出，形成可在蔬菜收納容器14內強制循環。並 且’負離子產生器17所產生的負離子是將負離子產生器 1 7配置在蔬菜室風扇1 8的下風側，因此與吐出口 1 5b所 送出的冷氣同時，形成以噴霧狀噴灑在蔬菜收納容器1 4 與小物品收納容器1 6的蔬菜類上。 亦即，本實施形態中，負離子由於容易被塑膠材所吸 收，因此如上述習知技術，並非使負離子通過電冰箱之冷 卻空氣循環管路內的方式，而是將含有負離子產生器17 所產生負離子的冷氣以直接噴霧狀噴灑在蔬菜上。並且， 強制循環密閉之蔬菜室內的冷氣，因此負離子可到達蔬菜 收納容器1 4的各個角落部，可大爲提高負離子對於食品 新鮮度維持的效果。 如第3圖表示，負離子產生器17是配設在位於吐出 口 15b的正上方，蔬菜室風扇18是配設在負離子產生器 1 7的上風側，且在吸入口 1 5 a與吐出口 1 5 b的中間位置。 -13- 200400340 Ο) 蔬菜室風扇1 8爲了確保含有負離子的風量，是採用直徑 大的螺旋槳式風扇，形成可收納於上述橫隔板1丨（參閱第 2圖）的高度尺寸內，蔬菜室風扇18其吐出側式朝著下 方，且傾斜配設具有水平方向30度以下的傾斜度。根據 採取以上構造與安裝姿勢之本實施形態的蔬菜室風扇！ 8 時，可同時達成充分風量的確保，及扁平狹窄空間內的配 設。此外，由於是螺旋槳式風扇，因此如後述，蔬菜室風 扇1 8同時可容易確認其轉動/停止狀態。 又，如第3圖所示，蔬菜室蓋15上面側的蔬菜室風 扇1 8的下方，黏貼有除濕•除臭片21，該除濕•除臭片 2 1上構成可以將來自蔬菜室風扇2 1的風直接強烈接觸良 好地吹出。該除濕·除臭片2 1在蔬菜收納容器14內蔬菜 類較多時，可吸收蔬菜類生出的水分保持，蔬菜減少時蔬 菜收納容器1 4內一旦開始乾燥時即將水分放出提高蔬菜 收納容器1 4內的溼度，具有可自動調節蔬菜收納容器1 4 內溼度的功能；吸收臭味的功能；及，具有將位在負離子 產生器1 7上部的送風機蓋1 8內面結露後的水滴’傳至蓋 後流下的水吸入’防止水滴滴下至蔬菜收納容器1 4的功 能。此外，除濕•除臭片21由於在濕潤狀態’因此可有 效地吸附臭味成分。 除濕·除臭片21爲了吸收從送風機蓋19滴下的水 滴，配設在送風機蓋19之負離子產生器17上部位置的內 面上結露的水滴集中後承接其滴下的位置°其中’水分結 露在送風機蓋1 9之負離子產生器1 7的收納側上面，係由 -14- (10) (10)200400340 於關閉蔬菜室門1 3時可以使蔬菜收納容器1 4密閉，可藉 著以上述風扇（冷風送風機）7所送出的冷氣，從外圍使 蔬菜收納容器1 4間接地冷卻，使得蔬菜收納容器1 4內的 溫度側較其外側溫度高，使含於蔬菜類的水分蒸散利用蔬 菜室風扇1 8在蔬菜收納容器14內循環時，接觸冷卻之送 風機蓋1 9的負離子產生器1 7的上部部分，將水分冷卻而 結露。 其中，本實施形態是如第3圖所示，將送風機蓋19 之負離子產生器17上方的天井部19a朝著除濕·除臭片 2 1側傾斜，構成使天井部1 9 a結露的水滴，落下至除濕· 除臭片21的上方。另外，本實施形態中，雖僅將送風機 蓋1 9之負離子產生器1 7上方的天井部1 9 a朝著除濕•除 臭片2 1側傾斜，但是也可以使送風機蓋1 9之蔬菜室風扇 1 8上側的天井部同樣朝著除濕•除臭片21側傾斜（也可 以朝著與天井部1 9a的相反方向傾斜）。 並且’第3圖中，19b是設置在位於蔬菜室風扇18 上部之送風機蓋1 9的透明窗構件。 如先前已敘述，本實施形態中，蔬菜室3上除了蔬菜 收納容器1 4之外，在大的蔬菜收納容器1 4的上裏部重疊 有整理小的蔬菜等儲藏用的淺高度尺寸的小物品收納容器 1 6 ’該小物品收納容器1 6是位在吐出口 1 5 b的下側。因 此’在此狀態下，在此小物品收納容器丨6內的蔬菜類如 不使其與混入循環冷氣而來的負離子接觸，或小物品收納 容器1 6形狀下工夫時，小物品收納容器會遮蔽循環冷氣 -15- (11) (11)200400340 的流動，因此會使得蔬菜收納容器1 4內的蔬菜類不易接 觸負離子，而縮短蔬菜收納容器1 4內之蔬菜類的新鮮度 維持期間。 其中，本實施例形態爲了使蔬菜收納容器14內的冷 氣循環良好，如第4圖所不，在形成小物品收納容器16 的底面與側面的稜線部內側，穿設複數個開縫1 6a，藉此 可混合循環的冷氣使負離子通過開縫1 6a落下，構成可確 實接觸蔬菜收納容器1 4的蔬菜類。此外，穿設在小物品 收納容器16的開縫（透孔）的位置、形狀、數量可以任 意，但是設置在小物品收納容器1 6的下側時，以如後述 的蔬菜收納谷器1 4內之冷氣循環路徑的形成爲佳。 此外，爲獲得良好之蔬菜收納容器14內之冷氣的循 環，增加蔬菜收納容器14內之循環空氣的量，即爲了使 負離子大量接觸蔬菜收納容器1 4內的蔬菜類，在本實施 形態中第5圖所示，小物品收納器1 6的前面板是設定其 局度低於小物品收納容器1 6的側面板或背面板，藉此在 小物品收納器1 6的前面板上端與蔬菜室蓋1 5之間，設置 空氣可充分循環的間隙。 如上述’藉者設於小物品收納容器1 6之上述位置的 開縫1 6a，及設於小物品收納容器1 6的前面板上端與蔬菜 室蓋1 5之間的間隙，使混合負離子的冷氣利用蔬菜風扇 1 8的動作，在密閉的蔬菜收納容器14內如第5圖中表示 的箭頭方向循環，構成可全面性接觸小物品收納容器i 6 及蔬菜收納容器14的蔬菜類。此外，設於小物品收納容 -16- (12) (12)200400340 器1 6的前面板上端與蔬菜室蓋1 5之間的間隙高度尺寸 L1形成小物品收納谷窃1 16丨朵度（局度）80〜lOOrnm的1/2 左右，藉此即使在蔬菜收納容器1 4內放入充分的蔬菜類 等食品時，可確認其不致妨礙蔬菜收納容器1 4內空氣的 對流。並且，在此設定小物品收納容器1 6的前面板與蔬 菜收納容器14前面板間的距離爲100〜120mm左右。 但是，由於負離子的產生，對於離子產生器的電極賦 予交流高壓電的作用時，由於會同時產生臭氧（〇3)與負離 子’因此必須負離子收集電極與臭氧分解觸媒已如前述說 明。其中，本實施形態示以交流轉換成直流，並在離子產 生器1 7的陰極上外加負的直流電壓，使其僅產生負離 子。又，一旦產生電暈放電或輝光放電時，對氧分子賦予 高能源而促進氧分子產生臭氧的反應，因此爲了使其不產 生電暈放電或輝光放電，在負離子產生器1 7的兩電極間 形成設置絕緣材構成的防護板。 亦即，本實施形態中，如第6圖、第7圖所示，在負 離子產生器17的針狀電極（陰極）31與環形電極（正 極）32之間，形成高於兩電極31、32的突出高度，設置 絕緣材所構成的環狀防護板33。本實施形態中，針狀電 極31的突出高度H2爲4.5 mm，環形電極32的突出高度 爲3.0mm’此時改變防護板33的高度測量臭氧產生量與 負離子產生量的實驗結果是如第6圖的表中。從該實驗結 果可獲知，防護板33的高度尺寸H1爲8〜9mm時，臭氧 的產生量可抑制在低量的以下，但是臭氧產生量 -17- (13) (13)200400340 略爲少量的6·45〜20.93k個/cc，並非適當値。另一方面， 防護板33的高度尺寸H1爲6〜7mm時，具有充分的負離 子產生量’臭氧的產生量換算爲蔬菜收納容器內濃度的値 爲充分低値之0.009〜0.018ppm時，可確認爲適當値。 又’本實施形態中，電冰箱的使用者將手放入蔬菜室 3時爲了防止觸電等，並爲防止負離子產生器丨7的破損 等’在負離子產生器17的下側，如第8圖所示，設置塑 膠製的格子狀保護構件3 4。該格子狀保護構件3 4形成淺 的腕狀，至少其底面是形成格子狀（保護網狀），製作成 負離子可通過的形狀。 但是，負離子一旦與帶正電荷的塑膠等接觸時，會減 少其量，因此格子狀保護構件3 4以選擇不易帶電的塑膠 材爲佳。第9圖是表示改變格子狀保護構件34之塑膠材 料時的負離子測量數的實驗結果，第1 0圖是表示第9圖 的實驗所使用之塑膠材料物性表。如第9圖、第1 〇圖所 示，PBT (聚丁烯對苯二酸酯）的場合，負離子的測量數 量多，且體積電阻力也較大，因此本實施形態極力爲了不 減少負離子的量，以PBT形成格子狀保護構件34。此 外，雖然未使用於實驗，但是PPS (聚亞苯基硫化物）具有 與PBT相同的特性，同樣可以使用PBT。 又，如先前所述，可以冷卻蔬菜室或蔬菜室以外儲藏 室用的冷氣送風用風扇，兼用作爲負離子送入用的風扇 時，在冬天的外氣溫度（室內溫度）低時，連結電冰箱的 運轉而運轉控制之冷氣送風用風扇形成低的運轉率（送風 -18- (14) (14)200400340 時間縮短），因此同時減少負離子的送風量，不能對蔬菜 等充分地散佈負離子，而減少負離子產生的效果。因此， 本實施形態中，上述冷藏室23及蔬菜室3用的風扇7， 或冷凍室4及冷凍室5用的風扇9是另體形成，而在密閉 的蔬菜收納容器1 4內使空氣強制循環，形成設置送入負 離子用之蔬菜室風扇1 8的構成，構成使該蔬菜室風扇18 不與電冰箱的運轉率連結，形成可獨立控制的構成。 亦即，本實施形態中，負離子送風（散佈）用的蔬菜 室風扇18不與上述風扇7的運轉同步，而是以獨立運轉 依預定時間驅動，冬天與夏天同樣是經常地使負離子充分 地遍佈蔬菜收納容器14內，控制蔬菜室風扇丨8。此外， 負離子產生器1 7的運轉是形成與蔬菜室風扇丨8的運轉同 或者，使蔬菜室風扇18及負離子產生器17的運轉， 如第1 1圖所示電冰箱運轉率高的夏天等（外氣溫度高 時），運轉控制與上述風扇7完全同步，當電冰箱運轉率 低的冬天等（外氣溫度低時），與上述風扇7運轉開始同 步開始運轉，同樣可在風扇7的運轉停止後進行數分鐘的 延長運轉，即使在電冰箱運轉率低的夏天，同樣可以將負 離子充分地遍佈在蔬菜收納容器14內。 又，本實施形態的電冰箱中，蔬菜室風扇1 8的旋轉 狀態是形成電冰箱使用者可以容易以辨識的構造。亦即， 蔬采室風扇18 —'旦進入使用者的眼中，形成從外部可容 易監視的構造時，異常時容易感覺爲安心的設計，因此本 -19- (15) (15)200400340 實施形態是如上述，在位於蔬菜室風扇1 8上部的送風機 蓋1 9設置透明窗構件1 9 b的同時，以透明的材質形成位 於送風機蓋1 9上側的上述冷藏室2的底板2 0，藉此在開 啓冷藏室2的門時，如第12圖所示，使用者可直接以肉 眼確認蔬菜室風扇1 8的運轉狀況。並且，蔬菜室風扇！ 8 爲螺旋槳式的風扇，及配置使蔬菜室風扇1 8倒伏傾倒， 因此形成可更爲容易確認蔬菜室風扇1 8的旋轉狀況。 如上述預先形成可從外部觀察蔬菜室風扇1 8旋轉的 樣子時，展示電冰箱販賣時等，使店員等容易對購買者說 明負離子送入用之送風風扇（蔬菜室風扇）旋轉的樣子， 並且萬一故障時同時可容易發現故障處。 如上述，根據本實施形態之電冰箱，係將間接冷卻式 儲藏室的密閉蔬菜室收納容器內的冷氣循環用之獨立的循 環送風機（蔬菜室風扇），設置在覆蓋蔬菜收納容器上部 的儲藏室蓋（蔬菜室蓋）上，因此可形成良好之蔬菜收納 容器內空氣的對流，使多量冷卻後的空氣接觸蔬菜收納容 器內之蔬菜類等食品的表面，及早獲得食品溫度的均勻 化，可長期維持新鮮度。 又，由於將負離子產生器設置在獨立之上述蔬菜室風 扇的吐出側（下風），因此負離子如以往不通過導管內而 不致使負離子吸附在導管等上，負離子可多量散佈在蔬菜 收納容器內，因此負離子的遮蔽效果可抑制水分蒸散，維 持著蔬菜類等的生鮮度。 並在覆蓋蔬菜收納容器上部的蔬菜室蓋上設置吸入口 -20- (16) 200400340 及吐出口，在吐出口的正上方設置負離子產生器’因此可 以將產生的負離子直接有效地吐出至蔬菜收納容器內。並 且，使蔬菜收納容器內循環回流的空氣，從吸入口直接吸 入回流至蔬菜室風扇，因此可減少負離子的循環量，可將 負離子大量散佈在蔬菜類的食品上，因此該點同樣具有大 的食品新鮮度維持效果。 另外，設置在電冰箱之橫隔板構件內側的空間內，配 置負離子產生器與蔬菜室風扇，並設置使蔬菜室風扇傾斜 吸入形成朝上方向，因此即使具有大直徑的風扇同樣可降 低其設置高度，因此不會減少電冰箱內之可儲藏食品的容 積，在設於橫隔板構件內側的扁平空間內，具有良好的空 間要素，可以小巧化配置，進行冰箱內容積的有效利用。 又，負離子產生器與蔬菜室風扇是配置在固定於橫隔 板構件下方的蔬菜室蓋的上方，因此與習知在可拉出式構 件上安裝負離子產生器的構造比較時，不會有電線斷線之 虞，同時可獲得簡易的連結線構造。 並且’在蔬菜收納容器內配置小物品收納容器的構 成，同樣可在小物品收納容器上形成開縫，因此負離子可 通過開縫，可同時對蔬菜收納容器內的蔬菜類散佈負離 V 子。又’在小物品收納容器的前面板上端與蔬菜室蓋之 間，設置使空氣充分循環的間隙，因此即使放入多量蔬菜 類等的食品等，仍不致妨礙空氣的對流，可以使含有負離 子的空氣確實地循環於蔬菜收納容器內。 又’蔬菜室風扇所吹出的風是朝斜向下方，但是在蔬 -21 - (17) (17)200400340 菜室風扇的下側配置除濕（調濕）•除臭片，該除濕•除 臭片直接接觸來自蔬菜室風扇的風，風中水份多時會吸收 水分，相反地形成乾燥風時則放出薄片吸收的水分，因此 可恰適地控制蔬菜收納容器內的溼度，藉以循環不致減少 空氣中的負離子，可有效利用負離子。並可同時進行蔬菜 收納容器內的除臭。 又，將安裝在蔬菜室蓋上部之送風機蓋的預定部位的 天井部朝著除濕·除臭片側傾斜，使結露在該傾斜天井部 的水滴落下至除濕•除臭片上，使水滴不致從蔬菜室蓋滴 落，並且除濕·除臭片可經常保持濕潤狀態，因此可防止 蔬菜收納容器內極度的乾燥，並且在負離子的性質上越具 有溼度即不致減少其量，因此不容易減少負離子的循環 量° 另外，在負離子產生器的針狀電極與環形電極之間設 置絕緣材所構成的環狀防護片，可盡可能地抑制有害臭氧 的產生。此外，以負離子產生器的陰極側作爲針狀電極， 包圍針狀電極的環形電極作爲陽極側，藉此使水滴不致附 著而連續兩極之間，不會有造成電極短路之虞。 又，以體積電阻率大的，例如PBT材作爲設置在負 離子產生器之離子吐出側的格子狀保護構件時，可大量減 少吸收負離子的量，而可有效地散佈負離子。 再者，使負離子產生器及蔬菜室風扇的運轉時間形成 容易受外器溫度影響，與電冰箱之冷氣送風用風扇的運轉 形成可獨立運轉控制，或者電冰箱的運轉率低的冬季等 -22- (18) (18)200400340 (外器溫度低時），可與電冰箱隻冷氣送風用風扇的運轉 開始同步開始運轉時，或冷氣送風用風扇的運轉停止後也 可以進行預定時間延長的運轉’即使外氣溫度低的冬天， 仍可將充分量的負離子散佈至蔬菜收納容器內’可增長蔬 菜類等食品新鮮度的維持期間° 並且，形成電冰箱的使用者可容易以辨識蔬菜風扇的 旋轉狀況的構造，因此可給予使用者安心感’即使萬一故 障也可以容易發現問題。並且’在店面裏店員對顧客進行 商品的說明等，由於可看見蔬菜室風扇’可進行具有說服 力的販賣。 〔發明效果〕 根據以上本發明，由於使間接冷卻儲藏室內之冷氣循 環用的間接冷氣儲藏室專用的獨立循環送風機是設置在穿 設吐出口與吸入口之儲藏室蓋的上面’因此可形成良好知 間接冷卻儲藏室內空氣的對流’對於間接冷氣儲藏室內的 食品表面可以多量的冷卻空氣循環’因此可及早獲得食品 溫度的均勻化，增長食品新鮮度的維持。 另外，由於負離子產生器是設置在上述循環送風機的 下風，因此負離子不致如習知通過導管內而吸附於導管 等，可將負離子多量地散佈於間接冷卻儲藏室內，負離子 的遮蔽效果可抑制水分蒸散，維持蔬菜類等的生鮮度。 又，在覆蓋間接冷卻儲藏室上部的儲藏室蓋設置吸入 口與吐出口，由於負離子產生器是設置在吐出口的正上 -23- (19) (19)200400340 方，因此可有效地將產生的負離子直接吐出至間接冷卻儲 藏室內。並且，在間接冷卻儲藏室內循環回流的空氣是從 吸入口吸入立即回流至循環送風機內，因此不會減少負離 子的循環量，負離子可大量散佈在蔬菜類的食品上，該點 可同樣獲得大的食品新鮮度維持效果。 另外，在設於電冰箱橫隔板構件內側的空間內，配置 負離子產生器及循環送風機，並且配置使循環送風機傾斜 朝著上方吸入，即使形成大直徑的循環送風機時，仍可降 低其設置高度，因此不會減少電冰箱內之食品可儲藏的容 積，並在設於橫隔板構件內側的空間內，其空間要素佳可 配置小巧化，進行箱內容積的有效利用。 又，負離子產生器與循環送風機是配置固定在橫隔板 構件下方的儲藏室蓋的上側，因此與習知可拉出構件上安 裝負離子產生器的構造比較，不會有電線斷線之虞，並可 獲得簡易的連結線構造。 並且，在間接冷卻儲藏室的收納容器上方’將小物品 收納容器配置在負離子的噴灑位至下側的構成時，可在小 物品收納容器上形成開縫，可以使負離子通過開縫對於小 物品收納容器以外之收納容器內的蔬菜，同時可散佈負離 子。此外，在小物品收納容器的前面板上端與儲藏室蓋之 間，設置可使空氣充分循環的間隙，因此即使儲藏多量的 蔬菜類等食品時，也不致妨礙空氣的對流，因此在間接冷 卻儲藏室內可確實地使空氣循環。 -24- (20) (20)200400340 【圖式之簡單說明】 第1圖爲本發明一實施形態之電冰箱的縱剖面圖。 第2圖爲本發明一實施形態之電冰箱的主要部縱剖面 圖。 第3圖爲第2圖之主要部擴大圖。 第4圖是表示購成本發明一實施形態之電冰箱的蔬菜 室之主體的收納容器與載置其上的小物品收納容器的透視 圖。 第5圖是表示本發明一實施形態之電冰箱的蔬菜室之 空氣回流說明圖。 第6圖是表示本發明一實施形態之電冰箱使用之負離 子產生器的主要部縱剖面，及檢討離子產生器之防護片的 高度適應性用之試驗結果的說明圖。 第7圖爲本發明一實施形態之電冰箱使用之負離子產 生器的主要部透視圖。 第8圖是表示本發明一實施形態之電冰箱使用之負離 子產生器與附設其上之格子狀保護構件的主要部剖視圖。 第9圖是表示附設於本發明一實施形態之電冰箱使用 之負離子產生器的檢討格子狀保護構件之材料適應性用之 試驗結果的說明圖。 第1 0圖是表示附設於本發明一實施形態之電冰箱使 用之負離子產生器的檢討格子狀保護構件之材料適應性用 之材料別的物性値說明圖。 第11圖爲本發明一實施形態之電冰箱的蔬菜室使用 -25- (21) (21)200400340 之離子產生器與蔬菜室風扇的運轉控制流程圖。 第1 2圖是表示本發明一實施形態之電冰箱位於上段 之冷藏室底面的樣子之主要部透視圖。 第1 3圖爲習知電冰箱的縱剖視圖。 【符號說明】 1電冰箱 2冷藏室（冷藏儲藏室） 3蔬菜室（蔬菜類用之冷藏儲藏室） 4、5 冷凍室 6壓縮機 7冷凍室4及蔬菜室5用之風扇 8冷藏室2及蔬菜室3用之冷卻室 9冷凍室4及冷凍室5用之風扇 10冷凍室4及冷凍室5用之冷卻室 1 1、1 2橫隔板 1 3 蔬菜室門 1 4蔬菜室收納容器 1 5 蔬菜室蓋 1 5 a吸入口 15b吐出口 1 6小物品收納容器 1 6 a開縫 1 7負離子產生器 -26- (22) (22)200400340 1 8蔬菜室風扇 1 9送風機蓋 19a天井部 19b透明窗構件 20底板 21除濕·除臭片 3 1針狀電極 3 2環形電極 3 3防護片 34格子狀保護構件 -27-200400340 ⑴ 玖, Description of the invention [Technical field to which the invention belongs] The present invention relates to a refrigerator. [Prior art] A refrigerator having the function of maintaining the freshness of food, generating negative ions, and having the function of pouring this on food, has been disclosed in Japanese Patent Laid-Open No. 8-1 45 545. Based on the knowledge that negative ions (mainly 0% are sprayed on foods, will not cause adverse effects on the human body, and can suppress the growth of microorganisms or molds at extremely low concentrations, there have been proposals in the inventions of the above-mentioned publications) FIG. 13 is a diagram showing an example of a refrigerator having a negative ion generating device described in Japanese Patent Application Laid-Open No. 8-1 45 545. In FIG. 13, 101 is a freezer compartment, 102 is a refrigerating compartment, and 103 It is a cooling room, 104 is a vegetable room, 105 is a compressor, 106 is an evaporation device, 107 is a fan (air-conditioning blower). 108 is a negative ion generator, and the negative ions generated by the negative ion generator 108 are simultaneously with the cold air through the fan 107. It is sent into each room. However, due to the generation of negative ions, the electrode, especially in the case of AC high voltage, will generate ozone and negative ions at the same time, which will change the color of the food due to ozone, or decolorize and reduce the freshness, especially the oxidation of ozone. The force is very strong, which will obviously reduce the quality of the food. Therefore, in order to prevent the ozone from circulating in the storage room, it must be installed near the negative ion generator. The ion collection electrode and the ozone decomposition catalyst constitute an extremely complicated structure and are expensive. Therefore, the technology described in Japanese Patent Application Laid-Open No. 8-1 45 545 (2) 200400340 focuses on applying a DC voltage to a negative ion generator. In addition, in the above-mentioned Japanese Unexamined Patent Publication No. 8-1 45 545, a negative ion generator is arranged on the back side of the chamber, and when the storage chamber is pulled out, a freely expandable wire is connected to generate negative ions. [Contents of the Invention] [Problems to be Solved by the Invention] As shown in FIG. 13 above, the ion generating unit 108 is a duct provided with a patio unit, and when negative ions are sent by a fan 107, the negative ions are attached to plastic. In the system-made duct, there will be less negative separation of sprayed food (especially vegetables in the vegetable room), leading to problems such as sterilization and antibacterial effects. In the case of Figure 13, the negative ion generator is installed in the vegetable room. In the air supply path, the negative air ions that are difficult to generate are absorbed by the surrounding plastic channels in the narrow ventilation channel, which leads the negative effects of the vegetable room. The number of sub-minimal, reduced sterilization, antibacterial problem. So, while there are negative ion generator as close to the storage compartment vegetables), recommended the need for effective use of negative ions. In addition, the negative ion spraying effect of the field is provided with a negative ion generator on the inner side of the storage room. As with the pull-out storage of the vegetable room, it is necessary to connect a freely retractable electric wire to the negative ion generation. The electric wire is damaged due to prolonged use. The power of the field device, which does not cause a storage method, is placed in each room, resulting in a reduction in the amount of direct particles, such as the first cooling, but the effect is caused by the vomiting to the effect room (especially, for the room) On the occasional device, such as poor contact (3) (3) 200400340 or disconnection, there is a problem that the storage container of the vegetable room cannot be completely pulled out and washed, etc. In addition, an independent upper part of the closed vegetable room is provided. When the negative ion generator and blower flow cooling air outside the vegetable room (the vegetable container that constitutes the main body of the vegetable room) for indirect cooling, the vegetable room cover covering the upper part of the vegetable storage container will be covered by vegetables, which will evaporate from storage such as vegetables. The problem of moisture condensation, dripping onto stored food in the vegetable storage container. Therefore, in order to prevent the above moisture If dripping, we can surely realize the structural realization. If the structure of the negative ion generator with a negative ion generating electrode and a positive ion receiving electrode is not provided correctly, harmful ozone will be generated, which will cause discoloration of stored food such as vegetables or Problems such as fading and acceleration of damage to vegetables. Therefore, the realization of a negative ion generator that generates less ozone is sought. In addition, an anion generator is provided in the upper part of the closed vegetable room, and an upper part of the vegetable storage container constituting the main body of the vegetable room is provided. In the case of small-item storage containers, the vegetable storage foods in the small-item storage container in the upper stage are likely to be in contact with negative ions, but the vegetable-based foods in the vegetable-based storage container on the lower side of the small-item storage container are covered by the upper-stage small items. The storage container is shielded from contact with negative ions. There is a problem that the freshness of vegetables cannot be maintained for a long period of time. Therefore, when seeking a configuration in which a small item storage container is provided on the upper part of the vegetable storage container constituting the main body of the vegetable room, Vegetables under the small items storage container The vegetables in the container can also realize the structure that comes into contact with negative ions. In addition, the state of storage of food in the small items storage container in the upper stage will cause convection of the air. -8- (4) (4) 200400340 Stored food spreads negative ions evenly, so we strive to achieve good convection and increase the air flow containing negative ions. In addition, the negative ions are generated by installing the negative ions on the vegetable room cover located on the upper part of the vegetable room (the vegetable storage container constituting the vegetable room). In order to protect the electrodes of the negative ion generator from damage during storage of food or personal contact, a grid-shaped protective member is provided. However, depending on the material of the protective member, the generated negative ions are absorbed to reduce the number of negative ions. Therefore, as the above protection The material of the component must be a material that does not easily reduce negative ions. In addition, when the fan for cooling air for cooling the storage room other than the vegetable room is also used as the fan for feeding negative ions, when the outside air temperature is low in winter, it is connected to the refrigerator. The operating rate of the cooling air supply fan is low, Reduce the amount of negative ions in air, so that the effect of negative ions is reduced. Therefore, there is a need for a separate negative ion feeding fan that is not affected by the operating rate of the refrigerator. However, when an independent negative ion feeding fan is provided at this time, it is necessary to occupy the space required to reduce the internal volume of the food storage of the refrigerator. Therefore, a structure that does not reduce the internal volume as much as possible is sought. In addition, when a dedicated and independent fan for transporting negative ions generated by the ion generator is covered by a fan cover installed on a vegetable room cover, if an abnormality occurs in the fan for negative ion air supply, there may be negligence in the stopped state. In some cases, there is a problem that the freshness of the stored food cannot be maintained and the vegetables are damaged early. Therefore, a structure in which the user can easily recognize the rotation status of a dedicated independent fan for feeding negative ions is desired. In short, set up a direct cooling storage room that is cooled by introducing forced ventilation cooling air, and an indirect cooling storage room that does not directly introduce cooling air into the storage room, and indirectly from the surrounding -9- (5) (5) 200400340 cooling, In order to properly maintain the freshness of the food in the indirect cooling storage room, there are various review issues. [Means for Solving the Problem] The present invention was created in view of the technical problems described above. In the representative invention of the first aspect of the present invention, a direct-cooling storage room forcibly introducing ventilation cooling air for cooling is provided in the storage room. In a refrigerator including a storage container and a storage container cover of the storage container, which can indirectly cool the indirect cooling storage room in the storage container, a circulation blower for circulating the cold air in the storage container is provided on the storage container cover. , And the composition of the ion generator. [Embodiment] An embodiment of the present invention will be described using drawings. 1 to 12 are refrigerators according to an embodiment of the present invention. FIG. 1 is a longitudinal sectional view of the refrigerator of the embodiment. FIG. 2 is a longitudinal sectional view of a main portion of the refrigerator of the embodiment. Fig. 3 is an enlarged view of the main part in Fig. 2. Fig. 4 is a perspective view showing a storage container constituting the vegetable compartment main body of the refrigerator and a small item storage container placed thereon, and Fig. 5 The figure shows the air return of the vegetable compartment of the refrigerator in this embodiment. Fig. 6 is an explanatory diagram showing a longitudinal section of a main part of a negative ion generator used in the refrigerator of the present embodiment and a test result for reviewing the height-adaptability of the protective body of the negative ion generator. A perspective view of the main part of the anion generator used in the refrigerator of the embodiment, 8-10- (6) (6) 200400340 The figure shows the anion generator used in the refrigerator of this embodiment and the grid-shaped protection provided therein A cross-sectional view of the main part of the member. FIG. 9 is an explanatory diagram showing an experimental result for reviewing the adaptability of the material of the lattice-shaped protective member attached to the negative ion generator used in the refrigerator of this embodiment. FIG. Review the physical properties of different materials used in the grid-shaped protective member attached to the negative ion generator used in the refrigerator of this embodiment. Illustrative diagram. Figure 11 shows the negative ion generator and the negative ion generator used in the vegetable room of the refrigerator of this embodiment. Fig. 12 is a flow chart showing the control of the operation of the fan in the vegetable compartment. Fig. 12 is a perspective view of the main part showing the appearance of the refrigerator in the upper part of the bottom of the refrigerating compartment. Illustration. In the first figure, 1 is a refrigerator, 2 is a door open-close refrigerator (refrigeration storage room), 3 is a draw-out vegetable room (refrigerator storage room for vegetables), 4 and 5 are pull-out freezer rooms, and 6 is Compressor, 7 is a fan (cold air blower) for refrigerator compartment 2 and vegetable compartment 3, 8 is a cooler for refrigerating room 2 and vegetable compartment 3, and 9 is a fan for cold compartment 4 and freezer 5 (cold air blower) 10 is a cooler for the freezing compartment 4 and the freezing compartment 5. In the present embodiment, the refrigerating compartment 2 and the freezing compartment 4 and the freezing compartment 5 are direct-cooling storage compartments that can be cooled by forced introduction of ventilation cooling air, and the vegetable compartment 3 does not directly introduce cooling air into a vegetable storage container installed in the room. 14 (see FIG. 2), and an indirect cooling storage room is formed by indirect cooling from the periphery of the vegetable storage container 14. In addition, in this embodiment, the vegetable compartment 3 is arranged in the middle of the refrigerator, but the position of the vegetable compartment can be arbitrarily arranged if the structure described later is adopted. As shown in FIG. 2, the vegetable compartment 3 according to this embodiment is located between the horizontal partition 11 and the horizontal partition 12 of the freezer -11-(7) (7) 200400340 1. The vegetable compartment 3 includes a vegetable storage container (a vegetable storage container constituting the vegetable compartment) 1 4 which is formed as a body with the vegetable compartment door 1 3; a vegetable compartment cover 1 covering the vegetable storage container 1 4 5; Keep the upper side of the vegetable storage container 丨 4 'Small item storage container (small item storage container) which can pull out the vegetable storage container 14 1 6; Negative ion generator 17 arranged on the vegetable compartment cover 15 A separate vegetable room fan 18 dedicated to the vegetable room disposed above the vegetable cover 15; and a fan cover 19 installed on the vegetable room cover 15 and covering the negative ion generating device 17 and the vegetable room fan 18; The horizontal partition plate 11 is formed as a part of the skeleton of the refrigerator 1, and has a function of absorbing the pad of the refrigerator compartment door 2 and the vegetable compartment door 13. A space is provided inside the horizontal partition plate 11. The vegetable compartment cover 15 is installed below the transverse partition plate 11. On the inner side of the vegetable compartment cover 15, a negative ion generator 17 and a vegetable compartment fan 18 are arranged to cover the negative ion generator 17 and the vegetable compartment fan 18. The blower cover 19 is mounted on the upper part of the vegetable compartment cover 15. In other words, the negative ion generator 17 and the vegetable room fan 18 and the blower cover 19 are densely stored in the flat space on the inner side of the transverse partition 11. The vegetable storage container 14 is not integrated with the vegetable room door 13 and can be pulled out. Instead, the negative ion generator 17 and the vegetable compartment fan 18 are installed on the vegetable compartment cover 15 of the fixed component of the refrigerator 1. Therefore, when compared with the conventional structure in which the negative ion generator is installed on the pull-out component, There is a risk of disconnection of the wire, and the connection structure is relatively simple. In addition, in order to identify the vegetable compartment fan 18 from above, at least a part of it is made of transparent or translucent material, and is also located in the refrigerating compartment on the upper side of -12- (8) (8) 200400340 The bottom plate 20 of 2 is also formed of a transparent or translucent material. Furthermore, the upper surface of the blower cover 14 is formed by sealing the vegetable compartment cover 15 and the blower cover 19, and the closed vegetable room 3 is cooled from the periphery of the vegetable storage container 14 by the cold air sent from the fan (air-conditioning blower) 7 described above. The vegetable compartment cover 15 covering the upper part of the vegetable storage container 14 is provided with an air intake port 15a and an outlet port 15b. The air (air-conditioning) sucked in from the intake port 15a by the vegetable compartment fan 18 is removed from the vegetable compartment fan 18 by The ejection port 15b is ejected, and can be forcedly circulated in the vegetable storage container 14. In addition, the negative ion generated by the negative ion generator 17 is that the negative ion generator 17 is arranged on the downwind side of the vegetable room fan 18, and therefore, it forms a spray spray on the vegetable storage container at the same time as the cold air sent from the outlet 15b. 1 4 and small items storage container 1 6 vegetables. That is, in this embodiment, since negative ions are easily absorbed by the plastic material, as in the above-mentioned conventional technology, instead of passing the negative ions through the cooling air circulation pipe of the refrigerator, the negative ions are generated by the negative ion generator 17. The cold air of negative ions is sprayed directly on the vegetables. In addition, since the cold air in the closed vegetable room is forcibly circulated, negative ions can reach all corners of the vegetable storage container 14, and the effect of negative ions on maintaining freshness of food can be greatly improved. As shown in FIG. 3, the negative ion generator 17 is disposed directly above the discharge port 15b, and the vegetable room fan 18 is disposed on the upwind side of the negative ion generator 17 and is connected to the suction port 15a and the discharge port. 1 5 b in the middle position. -13- 200400340 〇) Vegetable room fan 1 8 In order to ensure the air volume containing negative ions, a large diameter propeller fan is used to form a vegetable room that can be stored in the height dimension of the above-mentioned diaphragm 1 丨 (see Figure 2). The discharge side of the fan 18 faces downward, and the fan 18 is arranged to have an inclination of 30 degrees or less in the horizontal direction. According to the vegetable room fan of this embodiment that adopts the above structure and installation posture! At 8 o'clock, sufficient air volume can be ensured and the equipment can be installed in a flat and narrow space. In addition, since it is a propeller fan, as will be described later, the vegetable room fan 18 can also easily check its rotation / stop status at the same time. As shown in FIG. 3, a dehumidifying / deodorizing sheet 21 is pasted below the vegetable compartment fan 18 on the upper side of the vegetable compartment cover 15, and the dehumidifying / deodorizing sheet 21 is formed so that the dehumidifying / deodorizing sheet 2 can be provided from the vegetable compartment fan 2 The wind of 1 blows out in direct strong contact well. The dehumidifying and deodorizing sheet 21 can absorb the moisture generated by vegetables when there are many vegetables in the vegetable storage container 14 and can retain the moisture generated by the vegetables. When the vegetables are reduced, the vegetable storage container 1 will release water once the drying starts in the vegetable storage container 1 The humidity in 4 has the function of automatically adjusting the humidity in the vegetable storage container 1 4; the function of absorbing odor; and the function of dew condensation on the inside of the fan cover 1 8 on the upper part of the negative ion generator 17 The function of preventing water droplets from dripping into the vegetable storage container 14 by sucking in water flowing down to the lid. In addition, since the dehumidifying and deodorizing sheet 21 is in a wet state, it can effectively adsorb odorous components. In order to absorb the water droplets dripping from the blower cover 19, the dehumidifying and deodorizing sheet 21 is arranged to collect the water droplets condensed on the inner surface of the upper part of the negative ion generator 17 of the blower cover 19 to receive the dripping position. The upper side of the storage side of the negative ion generator 17 of the cover 19 is -14- (10) (10) 200400340. When the vegetable room door 13 is closed, the vegetable storage container 14 can be closed. By the above fan ( The cold air sent by the cold air blower) 7 indirectly cools the vegetable storage container 1 4 from the outside, so that the temperature side in the vegetable storage container 14 is higher than the outside temperature, and the moisture contained in the vegetables is evacuated using the vegetable room fan 1 8. When circulating in the vegetable storage container 14, the upper part of the negative ion generator 17 which contacts the cooled blower cover 19 is cooled by moisture to cause condensation. In this embodiment, as shown in FIG. 3, the patio portion 19a above the negative ion generator 17 of the blower cover 19 is inclined toward the dehumidifying and deodorizing sheet 21 to form a water droplet that causes the patio portion 19a to dew. Drop on the dehumidifying and deodorizing sheet 21. In addition, in this embodiment, although only the patio portion 19 a above the negative ion generator 17 of the blower cover 19 is inclined toward the dehumidifying and deodorizing sheet 21 side, the vegetable compartment of the blower cover 19 may also be made. The patio section on the upper side of the fan 18 is also inclined toward the dehumidifying and deodorizing sheet 21 side (it may be inclined in the opposite direction to the patio section 19a). In the third figure, 19b is a transparent window member provided on the blower cover 19 on the upper part of the vegetable room fan 18. As described previously, in this embodiment, in addition to the vegetable storage container 14 on the vegetable room 3, a small shallow height dimension for storage such as organizing small vegetables is superimposed on the upper and inner portions of the large vegetable storage container 14 Article storage container 16 'The small item storage container 16 is located below the discharge port 1 5 b. Therefore, 'In this state, if the vegetables in this small item storage container 6 are not brought into contact with negative ions mixed with circulating cold air, or the small item storage container 16 is shaped, the small item storage container will be hidden. The circulation of cold air -15- (11) (11) 200400340 causes the vegetables in the vegetable storage container 14 to hardly come into contact with negative ions, and shortens the freshness maintenance period of the vegetables in the vegetable storage container 14. Among them, in order to make the air-conditioning cycle in the vegetable storage container 14 good, as shown in FIG. 4, a plurality of slits 16 a are formed inside the ridge line portion that forms the bottom surface and side surfaces of the small item storage container 16. Thereby, the cold air that can be mixed and circulated causes negative ions to fall through the slit 16a, and constitutes vegetables that can surely contact the vegetable storage container 14. In addition, the position, shape, and number of slits (through-holes) inserted in the small item storage container 16 can be arbitrarily set, but when placed on the lower side of the small item storage container 16, a vegetable storage grain container 1 4 will be described later. The formation of an internal cold air circulation path is preferred. In addition, in order to obtain a good circulation of cold air in the vegetable storage container 14, the amount of circulating air in the vegetable storage container 14 is increased, that is, in order to make a large amount of negative ions contact the vegetables in the vegetable storage container 14, in this embodiment, the first As shown in FIG. 5, the front panel of the small-item container 16 is set to a side panel or a back panel lower than the small-item container 16, so that the upper part of the front panel of the small-item container 16 and the vegetable compartment are set. A clearance is provided between the covers 15 to allow sufficient air circulation. For example, the borrower 16a provided at the above position of the small item storage container 16 and the gap provided between the upper end of the front plate of the small item storage container 16 and the vegetable compartment cover 15 make the mixed negative ion The air conditioner utilizes the operation of the vegetable fan 18 to circulate in the closed vegetable storage container 14 in the direction of the arrow shown in FIG. 5 to constitute vegetables that can fully contact the small-item storage container i 6 and the vegetable storage container 14. In addition, the small item storage capacity -16- (12) (12) 200400340 device 16 and the gap height dimension L1 between the front panel and the vegetable compartment cover 15 form the small item storage valley 1 16 丨 degree ( Locality) is about 1/2 of 80 to 100 nm, so that even when a sufficient amount of food such as vegetables is put in the vegetable storage container 14, it can be confirmed that it does not interfere with the air convection in the vegetable storage container 14. Here, the distance between the front panel of the small-item storage container 16 and the front panel of the vegetable storage container 14 is set to about 100 to 120 mm. However, due to the generation of negative ions, when the electrodes of the ion generator are applied with high-voltage alternating current, ozone (0) and negative ions are generated at the same time. Therefore, the negative ion collection electrode and the ozone decomposition catalyst must be described as described above. Among them, this embodiment shows that AC is converted into DC, and a negative DC voltage is applied to the cathode of the ion generator 17 so that only negative ions are generated. In addition, once a corona discharge or glow discharge is generated, a high energy is given to oxygen molecules to promote the reaction of oxygen molecules to generate ozone. Therefore, in order to prevent corona discharge or glow discharge from occurring, between the two electrodes of the negative ion generator 17 A protective plate made of an insulating material is formed. That is, in this embodiment, as shown in FIG. 6 and FIG. 7, between the needle electrode (cathode) 31 and the ring electrode (positive electrode) 32 of the negative ion generator 17, higher than both electrodes 31 and 32 are formed. The height of the protrusion is provided with an annular protective plate 33 made of an insulating material. In this embodiment, the protruding height H2 of the needle electrode 31 is 4. 5 mm, the protruding height of the ring electrode 32 is 3. 0mm 'At this time, the experimental results of changing the height of the protective plate 33 to measure the amount of ozone generated and the amount of negative ions generated are as shown in the table in FIG. From the results of this experiment, it can be known that when the height dimension H1 of the protective plate 33 is 8 to 9 mm, the amount of ozone generated can be suppressed below the low amount, but the amount of ozone generated is -17- (13) (13) 200400340 slightly smaller. 6.45 ~ 20. 93k / cc is not appropriate. On the other hand, when the height dimension H1 of the protective plate 33 is 6 ~ 7mm, it has a sufficient amount of negative ions, and the amount of ozone generated is converted into a concentration in the vegetable storage container, which is sufficiently low 0. 009 ~ 0. When it is 018 ppm, it can be confirmed as appropriate. Also, in the present embodiment, when the user of the refrigerator puts his hand into the vegetable compartment 3 to prevent electric shock, etc., and to prevent damage to the negative ion generator 7 and the like, it is on the lower side of the negative ion generator 17 as shown in FIG. 8. As shown, a grid-shaped protective member 34 made of plastic is provided. The lattice-shaped protective member 34 is formed into a shallow wrist shape, and at least the bottom surface thereof is formed into a lattice shape (protective mesh shape), and is formed into a shape through which negative ions can pass. However, once the negative ions come into contact with a plastic having a positive charge, the amount thereof decreases. Therefore, it is preferable to select a plastic material that is not easily charged as the grid-like protective member 34. Fig. 9 is an experimental result showing the number of negative ions measured when the plastic material of the grid-like protective member 34 is changed. Fig. 10 is a table showing the physical properties of the plastic material used in the experiment of Fig. 9. As shown in Fig. 9 and Fig. 10, in the case of PBT (polybutylene terephthalate), the number of negative ions measured is large, and the volume resistivity is also large. Therefore, this embodiment tries its best not to reduce the amount of negative ions. A grid-shaped protective member 34 is formed of PBT. In addition, although not used in experiments, PPS (polyphenylene sulfide) has the same characteristics as PBT, and PBT can also be used. Also, as described above, the refrigerator can be used as a cooling fan for cooling air in a vegetable room or a storage room other than the vegetable room. When it is also used as a fan for negative ion feeding, it can be connected to a refrigerator when the outdoor air temperature (indoor temperature) is low in winter. The air-conditioning fan used for operation control has a low operating rate (the air supply time is reduced by -18-18 (14) (14) 200400340), so the amount of negative ion air is reduced at the same time, and negative ions cannot be sufficiently distributed to vegetables and so on. The effect of negative ions. Therefore, in this embodiment, the fan 7 for the refrigerating compartment 23 and the vegetable compartment 3 or the fan 9 for the freezing compartment 4 and the freezing compartment 5 are formed separately, and the air is forced in the closed vegetable storage container 14 The cycle is configured to provide a vegetable room fan 18 for feeding negative ions, and the vegetable room fan 18 is not connected to the operation rate of the refrigerator, so that it can be independently controlled. That is, in the present embodiment, the vegetable room fan 18 for anion supply (distribution) is not synchronized with the operation of the fan 7, but is driven by independent operation at a predetermined time. In the same manner as in the summer, the negative ions are frequently spread throughout The vegetable storage container 14 controls a vegetable room fan 丨 8. In addition, the operation of the negative ion generator 17 is formed in the same manner as the operation of the vegetable room fan 8 and the operation of the vegetable room fan 18 and the negative ion generator 17 is performed, as shown in FIG. 11 in the summer when the refrigerator operation rate is high, etc. (When the outside air temperature is high), the operation control is completely synchronized with the above-mentioned fan 7. When the refrigerator operation rate is low in winter, etc. (when the outside air temperature is low), the operation is started in synchronization with the above-mentioned fan 7 operation. The extended operation is performed for several minutes after the operation is stopped. Even in the summer when the operation rate of the refrigerator is low, negative ions can be sufficiently distributed in the vegetable storage container 14. In the refrigerator of the present embodiment, the rotation state of the vegetable room fan 18 has a structure that can be easily recognized by a refrigerator user. In other words, when the vegetable collecting room fan 18 enters the eyes of the user and forms a structure that can be easily monitored from the outside, it is easy to feel safe when abnormal. Therefore, this -19- (15) (15) 200400340 embodiment As described above, while the blower cover 19 on the upper part of the vegetable room fan 18 is provided with a transparent window member 19b, the bottom plate 20 of the refrigerating compartment 2 on the upper side of the blower cover 19 is formed of a transparent material. When the door of the refrigerator compartment 2 is opened, as shown in FIG. 12, the user can directly check the operation status of the vegetable compartment fan 18 with the naked eye. And, the vegetable room fan! 8 is a propeller-type fan, and is configured to make the vegetable room fan 18 fall down, so that it is easier to check the rotation status of the vegetable room fan 18. As described above, when the rotation of the vegetable room fan 18 can be observed from the outside, when the refrigerator is being sold, etc., it is easy for the store clerk and the like to explain to the buyer that the air fan (vegetable room fan) for negative ion feeding is rotating, and In case of failure, it is easy to find the fault at the same time. As described above, the refrigerator according to the present embodiment is an independent circulation blower (vegetable room fan) for air-conditioning circulation in the closed vegetable room storage container of the indirect cooling storage room, and is installed in the storage room covering the upper part of the vegetable storage container. The lid (vegetable room lid) can form a good convection of the air in the vegetable storage container, so that a large amount of cooled air contacts the surface of the food such as vegetables in the vegetable storage container, and the uniformity of the food temperature can be obtained as early as possible. Maintain freshness. In addition, since the negative ion generator is installed on the discharge side (downwind) of the independent vegetable room fan, the negative ions do not pass through the duct without causing the negative ions to be adsorbed on the duct or the like, and a large amount of negative ions can be dispersed in the vegetable storage container Therefore, the shielding effect of negative ions can suppress moisture evapotranspiration and maintain the freshness of vegetables and the like. A suction port -20- (16) 200400340 and a spout are provided on the cover of the vegetable compartment covering the upper part of the vegetable storage container, and a negative ion generator is provided directly above the spout. Therefore, the generated negative ions can be directly and effectively discharged to the vegetable storage. Inside the container. In addition, the return air circulating in the vegetable storage container is directly sucked into the vegetable room fan from the suction port, so the circulation amount of negative ions can be reduced, and a large amount of negative ions can be spread on vegetable foods, so this point also has a large Food freshness maintenance effect. In addition, the negative ion generator and the vegetable room fan are arranged in the space inside the cross partition member of the refrigerator, and the vegetable room fan is tilted and sucked to form an upward direction, so even a fan with a large diameter can be reduced in its setting. Height, so it will not reduce the volume of food that can be stored in the refrigerator. It has good space elements in the flat space provided inside the partition member, and can be compactly configured to effectively use the internal volume of the refrigerator. In addition, since the negative ion generator and the vegetable compartment fan are arranged above the vegetable compartment cover fixed below the partition member, there is no electric wire when compared with the conventional structure in which the negative ion generator is mounted on the pull-out member. There is a risk of disconnection, and a simple connection line structure can be obtained. In addition, the structure of arranging the small-item storage container in the vegetable storage container can also form a slit in the small-item storage container, so that the negative ions can pass through the slit and simultaneously spread negative ions to the vegetables in the vegetable storage container. In addition, a gap is provided between the top of the front panel of the small-item storage container and the lid of the vegetable compartment to allow sufficient air circulation. Therefore, even if a large amount of food such as vegetables is put in, the convection of the air is not hindered, and the negative ion-containing Air is reliably circulated in the vegetable storage container. Also, the wind from the vegetable room fan is inclined downward, but a dehumidifying (humidifying) deodorizing sheet, a deodorizing sheet and a deodorizing sheet are arranged on the lower side of the vegetable room fan-(17) (17) 200400340. The sheet directly contacts the wind from the fan of the vegetable room. When there is a lot of water in the wind, it absorbs moisture. On the contrary, when the dry wind is formed, it releases the moisture absorbed by the flakes. Therefore, the humidity in the vegetable storage container can be properly controlled so that the circulation does not reduce the air. The negative ions in can effectively use negative ions. Deodorization in the vegetable container can be performed at the same time. In addition, the patio section installed at a predetermined position of the blower cover on the upper part of the vegetable room cover is inclined toward the dehumidifying and deodorizing sheet side, so that the water droplets condensed on the inclined patio section are dropped onto the dehumidifying and deodorizing sheet so that the water droplets do not pass from the vegetable room The lid drips, and the dehumidifying and deodorizing sheet can always be kept in a wet state, so it can prevent extreme drying in the vegetable storage container, and the more moisture in the nature of the negative ions, the smaller the amount, so it is not easy to reduce the circulation of negative ions. In addition, a ring-shaped protective sheet made of an insulating material is provided between the needle electrode and the ring electrode of the negative ion generator, and the generation of harmful ozone can be suppressed as much as possible. In addition, the cathode side of the negative ion generator is used as the needle electrode, and the ring electrode surrounding the needle electrode is used as the anode side, thereby preventing water droplets from adhering between the two consecutive electrodes without causing a risk of short-circuiting the electrode. In addition, when a volume resistivity is large, for example, when a PBT material is used as a lattice-shaped protective member provided on the ion discharge side of the negative ion generator, the amount of negative ions absorbed can be greatly reduced, and negative ions can be effectively dispersed. In addition, the operation time of the negative ion generator and the vegetable room fan is easily affected by the temperature of the external device, and can be independently controlled with the operation of the fan for cooling air supply of the refrigerator, or in the winter when the operation rate of the refrigerator is low, etc.-22 -(18) (18) 200400340 (when the temperature of the external device is low), it can be started in synchronization with the start of the operation of the air-conditioning fan only, or after the operation of the air-conditioning fan is stopped. 'Even if the outside air temperature is low in the winter, a sufficient amount of negative ions can be dispensed into the vegetable storage container.' The period of maintaining the freshness of food such as vegetables can be increased. ° Furthermore, users of refrigerators can easily identify the fan of vegetables. The structure of the rotation condition can give the user peace of mind. Even in the event of a failure, the problem can be easily detected. In addition, "the salesperson can explain the products to customers at the storefront, because the vegetable room fan can be seen", it is possible to carry out convincing sales. [Effects of the Invention] According to the present invention described above, since the independent circulation blower dedicated to the indirect air-conditioning storage room for indirect cooling air circulation in the in-cooling storage room is provided on the top of the storage room cover through which the discharge port and the suction port are provided, it can form a good It is known that the convection of the air in the indirect cooling storage room can circulate a large amount of cooling air for the food surface in the indirect cooling storage room. Therefore, the uniformity of the food temperature can be obtained early, and the maintenance of food freshness can be increased. In addition, since the negative ion generator is installed on the downwind of the above-mentioned circulating blower, the negative ions are not attracted to the duct through the duct as known, and a large amount of negative ions can be dispersed in the indirect cooling storage room. The shielding effect of the negative ions can suppress moisture Evaporate to maintain the freshness of vegetables. In addition, the storage chamber cover covering the upper part of the indirect cooling storage chamber is provided with a suction port and a discharge port. Since the negative ion generator is provided directly above the discharge port, the -23- (19) (19) 200400340 square can effectively generate the The negative ions are directly discharged into the indirect cooling storage room. In addition, the air circulating back in the indirect cooling storage room is sucked in from the suction port and immediately returned to the circulating blower, so it will not reduce the circulation of negative ions, and the negative ions can be scattered on foods such as vegetables. Food freshness maintenance effect. In addition, a negative ion generator and a circulating air blower are arranged in a space provided inside the cross partition member of the refrigerator, and the circulating air blower is inclined to be sucked upward. Even if a large-diameter circulating air blower is formed, its installation height can be reduced. Therefore, the volume of food that can be stored in the refrigerator will not be reduced, and in the space provided on the inner side of the cross partition member, its space elements can be better configured and miniaturized to effectively use the inner volume of the box. In addition, since the negative ion generator and the circulating blower are arranged above the storage compartment cover fixed below the cross partition member, there is no risk of disconnection of the electric wire compared with the structure in which the negative ion generator is installed on the conventional pull-out member. And a simple connection line structure can be obtained. In addition, when the small item storage container is arranged above the storage container of the indirect cooling storage room and the negative ion spraying position is arranged to the lower side, a slit can be formed in the small item storage container, and the negative ion can pass through the slot to the small item. Vegetables in a storage container other than the storage container can also spread negative ions. In addition, a gap is provided between the front panel of the small item storage container and the storage compartment cover to allow sufficient air circulation. Therefore, even when storing a large amount of food such as vegetables, the air convection is not hindered. Therefore, the storage is indirectly cooled. The room can reliably circulate air. -24- (20) (20) 200400340 [Brief description of the drawings] FIG. 1 is a longitudinal sectional view of a refrigerator according to an embodiment of the present invention. Fig. 2 is a longitudinal sectional view of a main part of a refrigerator according to an embodiment of the present invention. FIG. 3 is an enlarged view of a main part of FIG. 2. Fig. 4 is a perspective view showing a storage container of a main body of a vegetable compartment of a refrigerator according to an embodiment of the present invention and a small item storage container placed thereon. Fig. 5 is an explanatory view showing air return in a vegetable compartment of a refrigerator according to an embodiment of the present invention. Fig. 6 is an explanatory view showing a longitudinal section of a main part of a negative ion generator used in a refrigerator according to an embodiment of the present invention, and a test result for examining the adaptability of the protective sheet of the ion generator. Fig. 7 is a perspective view of a main part of a negative ion generator used in a refrigerator according to an embodiment of the present invention. Fig. 8 is a cross-sectional view of main parts showing a negative ion generator used in a refrigerator according to an embodiment of the present invention and a grid-shaped protective member attached thereto. Fig. 9 is an explanatory diagram showing a test result for reviewing the material suitability of a grid-shaped protective member attached to a negative ion generator used in a refrigerator according to an embodiment of the present invention. Fig. 10 is an explanatory diagram showing other physical properties of materials for reviewing the material adaptability of the grid-shaped protective member attached to the negative ion generator used in the refrigerator of one embodiment of the present invention. FIG. 11 is a flowchart of operation control of an ion generator and a vegetable room fan for a vegetable room using a refrigerator in an embodiment of the present invention. Fig. 12 is a perspective view of a main part showing a state in which a refrigerator according to an embodiment of the present invention is located on a bottom surface of a refrigerating compartment in an upper stage. Fig. 13 is a longitudinal sectional view of a conventional refrigerator. [Symbol description] 1 Refrigerator 2 Refrigerator compartment (refrigerator storage compartment) 3 Vegetable compartment (refrigerator storage compartment for vegetables) 4, 5 Freezer compartment 6 Compressor 7 Freezer compartment 4 and Vegetable compartment 5 Fan 8 Refrigerator compartment 2 Cooling compartment for vegetable compartment 3, 9 for freezer compartment 4 and freezer compartment 5 Fans for freezer compartment 4 and freezer compartment 5 Cooling compartment 1 for freezing compartment 4 and freezing compartment 5 1 1, 1 2 partitions 1 3 Vegetable compartment door 1 4 Vegetable compartment storage container 1 5 Vegetable compartment cover 1 5 a Suction inlet 15b Spit outlet 1 6 Small items storage container 1 6 a Slit 1 7 Anion generator 26- (22) (22) 200 400 340 1 8 Vegetable compartment fan 1 9 Fan cover 19a Patio Portion 19b Transparent window member 20 Base plate 21 Dehumidifying and deodorizing sheet 3 1 Needle-shaped electrode 3 2 Ring electrode 3 3 Protective sheet 34 Grid-shaped protective member -27-