201233908 六、發明說明： 【發明所屬之技術領域】 本發明是關於電動送風機及具備該電動送風機的吸塵 器。 【先前技術】 以往的電動送風機，例如在專利文獻1揭示了 一種具 有定子葉片（Stator vane)構造的技術：該定子葉片構造， 藉由熔接或接著’將使略平面的圓環形狀的環狀支持體 115b及設在環狀支持體i15b之一面側的複數個擴散葉片 H5a由樹脂一體成形的擴散器115、以及使略平面的圓環 形狀的隔板1 1 5 c及設在隔板1 1 5 c之一面側的複數個回流 片U 5d由樹脂一體成形的回流導件122接合而構成。擴 散器1 1 5與回流導件1 22的接合是使隔板之相反側的擴散 葉片115a與設有回流導件122之面的相反面的隔板接合 而成。 又’專利文獻2揭示一種具有使擴散葉片、隔板及回 流片一體成形的定子葉片構造的技術。 [先行技術文獻] [專利文獻] [專利文獻1]日本特開第2007-2770號公報 [專利文獻2]日本特開第20〇7-2769號公報 【發明內容】 -5- 201233908 [所欲解決之技術課題] 上述專利文獻1所記載的技術當中，隔板1 15c及回 流片1 1 5d是藉由樹脂成形的射出成形等一體成形，並形 成回流導件122。然而，藉由射出成形等使隔板1 15c及回 流片115d —體成形時，在設有回流片115d的隔板115c 之面的相反側，有時會產生沿著回流片1 1 5d之形狀的毛 邊。毛邊是在工業產品當中由於材料引起的成形收縮所產 生的坑洞、凹陷，例如表面是平面，但背面有凹凸的形狀 時，有時背面凸起的部分會收縮，並在表面側產生毛邊。 由於在隔板115c與擴散葉片115a接合之面的相反面所產 生的毛邊，在接合擴散葉片115a及隔板115c時會產生些 微的間隙，可能會因爲所產生的間隙而發生效率的降低或 性能的不穩定。 上述專利文獻2所記載的技術也相同，由於是藉由射 出成形使擴散葉片、隔板及回流片一體成形，因此在有擴 散葉片的面會產生沿著回流片之形狀的毛邊，在有回流片 的面會產生沿著擴散葉片之形狀的毛邊，而有可能由於該 毛邊導致效率降低或可能發生性能不穩定的課題。又’在 覆蓋擴散器及回流導件的風扇外殼與擴散葉片之間會產生 間隙，因此可能會導致效率降低。 本發明是爲了解決如上述的課題而硏究創作，其目的 在於：提供一種可謀求效率之提升及性能不穩定之降低的 電動送風機及具備該電動送風機的吸塵器。 201233908 [解決課題之技術手段] 本發明之電動送風機是具備：具有電樞繞組的轉子； 具有磁場繞組的定子；用來收納轉子及定子的外殼；設在 轉子的旋轉軸；保持旋轉軸之軸承的端架：在端架的外部 固定在旋轉軸的葉輪：配置在葉輪之外周側的擴散器；配 置在擴散器之端架側的回流導件；設置成從外部覆蓋葉輪 、擴散器及回流導件的風扇外殼的電動送風機，其特徵爲 :擴散器是使風扇外殼側的環狀支持體a及回流導件側的 擴散葉片一體成形，回流導件是在擴散器側，使在外周部 及內周部設有肋體的環狀支持體b及端架側的回流導件葉 片一體成形，在擴散器與回流導件之間設置大致圓環狀的 隔板，並藉由熔接或接著將擴散器及回流導件與隔板接合 〇 或是，本發明之電動送風機是具備：具有電樞繞組的 轉子；具有磁場繞組的定子；用來收納轉子及定子的外殼 ;設在轉子的旋轉軸；保持旋轉軸之軸承的端架；固定在 旋轉軸的葉輪；配置在葉輪之外周側的擴散器；配置在擴 散器之端架側的回流導件；以及設置成覆蓋葉輪、擴散器 及回流導件的風扇外殼的電動送風機，其特徵爲：擴散器 是由板狀構件a及設在板狀構件a之一面的複數個擴散葉 片所構成，板狀構件a及複數個擴散葉片是一體成形，回 流導件是由板狀構件b及設在板狀構件b之一面的複數個 回流導件葉片所構成，板狀構件b及複數個回流導件葉片 是藉由射出成形而一體成形，在擴散器與回流導件之間設 201233908 置板狀構件c，擴散器及板狀構件C及回流導件是從上游 側以板狀構件a、擴散葉片、板狀構件C、板狀構件b、回 流導件葉片的順序配置，並將隔板' 擴散葉片及環狀支持 體b接合。 或是，本發明之電動送風機是具備：具有電樞繞組的 轉子；具有磁場繞組的定子；用來收納轉子及定子的外殼 ;設在轉子的旋轉軸；保持旋轉軸之軸承的端架；固定在 旋轉軸的葉輪；配置在葉輪之外周側的擴散器；配置在擴 散器之端架側的回流導件；以及設置成覆蓋葉輪、擴散器 及回流導件的風扇外殻的電動送風機，其特徵爲：擴散器 是由大致平面的圓環形狀的環狀支持體a及設在環狀支持 體a之一面的複數個擴散葉片所構成，環狀支持體a及擴 散葉片是一體成形，回流導件是由大致平面的圓環形狀的 環狀支持體b、設在環狀支持體b之一面的複數個回流導 件葉片、及設在環狀支持體b之另一面的肋部所構成，在 擴散葉片與環狀支持體b之間設置大致平面的圓環形狀的 隔板，環狀支持體b、回流導件葉片及肋部是藉由射出成 形而一體成形，並將隔板、擴散葉片及肋部接合。 或是，本發明之電動送風機是具備：具有電樞繞組的 轉子；具有磁場繞組的定子；用來收納轉子及定子的外殻 ;設在轉子的旋轉軸；保持旋轉軸之軸承的端架；固定在 旋轉軸的葉輪：配置在葉輪之外周側的擴散器；配置在擴 散器之端架側的回流導件；以及設置成覆蓋葉輪、擴散器 及回流導件的風扇外殼的電動送風機，其特徵爲：擴散器 -8- 201233908 是由構件a及設在構件a之一面的複數個擴散葉片所構成 ’回流導件是由構件b及設在構件b之一面的複數個回流 導件葉片所構成，在擴散器與回流導件之間設有構件c， 擴散器、構件c及回流導件是從上游側以構件a、擴散葉 片、構件c、構件b、回流導件葉片的順序配置，構件c 之目的是爲了避免在構件b所產生的毛邊影響到擴散器側 〇 或是，本發明之電動送風機是具備：具有電樞繞組的 轉子；具有磁場繞組的定子；用來收納轉子及定子的外殼 :設在轉子的旋轉軸；保持旋轉軸之軸承的端架；固定在 旋轉軸的葉輪；配置在葉輪之外周側的擴散器；配置在擴 散器之端架側的回流導件；以及設置成覆蓋葉輪、擴散器 及回流導件的風扇外殻的電動送風機，其特徵爲：擴散器 是由大致圓環狀的環狀支持體a與設在環狀支持體a之一 面的複數個擴散葉片之成形所構成，複數個擴散葉片是被 設置成：相鄰的擴散葉片之間的寬度，是從環狀支持體a 之內周側朝外周側逐漸變寬，回流導件是藉由射出成形以 下的構件而一體成形所構成：大致圓環狀的環狀支持體b 、設在環狀支持體b之一面的複數個回流導件葉片、設在 環狀支持體b之另一面之內周部的肋體a、設在環狀支持 體b之另一面之外周部的肋體b，複數個回流導件葉片是 被設置成：相鄰的回流導件葉片之間的寬度，是從環狀支 持體b之內周側朝外周側逐漸變寬，肋體a是形成圓環狀 的突起，肋體b是形成沿著環狀支持體b之外周之形狀的 201233908 突起’在擴散器與回流導件之間設有一體成形的略圓環狀 的隔板，擴散葉片與隔板的一面是藉由熔接或接著劑而接 合，並且環狀支持體b與隔板的另一面被接合。 [發明之效果] 根據本發明，藉由使隔板及回流導件形成個別的成形 品，可使隔板形成大致圓環狀的平板形狀，且可藉由將隔 板裝入擴散器與回流導件之間以避免在回流導件所產生的 毛邊影響到擴散器側。亦即，即使在回流導件的環狀支持 體產生毛邊，由於隔板及回流導件的環狀支持體是個別形 成的，因此在隔板與擴散器的接合部不容易產生間隙，因 而可謀求效率的提升以及性能不穩定的降低。 【實施方式】 以下，使用圖面來說明本發明之實施例。 (實施例1之形態） 第1圖是本發明之一實施例的吸塵器全體的外觀斜視 圖。第2圖是本發明之一實施例的吸塵器主體的模式橫剖 面圖。第1圖當中，吸塵器1是具有吸塵器主體2、管體 3、設有手邊操作開關等的手邊操作管4、以及作爲接頭管 的延長管5，並在其前端具備吸入具6及吸口 7的構成。 管體3的一端是與吸塵器主體2之吸入口 20連通而連接 ，手邊操作管4的一端是與管體3之另一端連通而連接’ -10- 201233908 延長管5的一端是與手邊操作管4的另一端連通而連接’ 吸入具6是與延長管5的另一端或手邊操作管4的另一端 連通而連接，吸口 7是與吸入具6的另一端或延長管5的 另一端或手邊操作管4的另一端連通而連接。從吸口 7或 吸入具6吸引的塵埃會通過延長管5、手邊操作管4、管 體3而流到吸塵器主體2。 第2圖當中，吸塵器主體2的內部可大致區分爲：使 從吸入具6及吸口 7吸引的塵埃通過管體3及吸入口 20 並加以收集的集麈室11;裡面可配置用以產生吸引力的電 動送風機16等的電動送風機室12;以及位於電動送風機 室1 2之橫側而可配置捲線器1 5的捲線器室1 0。位在吸塵 器主體2內的前側是集塵室11，電動送風機室12是位在 吸塵器主體2內的後側，捲線器室10是位在集塵室11的 後側且電動送風機室1 2的橫側。吸入口 20是位在集塵室 1 1的前側。 在集塵室Π設有作爲藉由電動送風機16之吸引力， 將通過吸入口 20所吸引的塵埃加以收集之手段的集塵袋 13。此外，收集該塵埃的手段除了集塵袋13以外，亦可 爲旋風集麈部。集塵袋13或旋風集麈部可從吸塵器主體2 卸下。又’集塵袋13大多是利用紙等的素材，但其素材 亦可利用布等’關於集塵袋1 3的素材並沒有特別的限制 〇 在集塵室11與電動送風機室12之間設置過濾部14。 過濾部1 4是由細網目的構件形成。過濾部1 4的作用是在 -11 - 201233908 藉由集塵袋13除去大部分的塵埃之後，將再過濾的空氣 送至電動送風機室12。再者，萬一集塵袋13破掉或是忘 了安裝集塵袋13或是忘了安裝旋風集塵部’也可發揮保 護作用以免塵埃被送入電動送風機室12內。 電動送風機16是經由防振橡膠19保持在電動送風機 室1 2。藉著經由防振橡膠1 9保持電動送風機1 6來防止吸 塵器主體2.的振動以及因爲振動所產生的噪音。通過集塵 袋13、過濾部14的空氣會從設在電動送風機16的送風機 入口 17流入電動送風機16內。從送風機入口 17流入的 空氣會因爲電動送風機16而升壓，並且從設在電動送風 機16的電動送風機出口 18排出》從電動送風機16之電 動送風機出口 18排出的空氣會直接從吸塵器主體2排出 ，或是在通過可配置捲線器1 5的空間之後從吸塵器主體2 排出。 接下來，根據第3圖之電動送風機的橫剖面圖，說明 本實施例之電動送風機16的構成。電動送風機16主要是 由電動機21及送風機22構成。如第2圖所示，集塵室11 是位在吸塵器主體2的前部’電動送風機室16及捲線器 室1 〇，在位於吸塵器主體之後部的吸塵器主體2橫置狀態 下’電動送風機16是以電動機21形成後部，送風機22 形成前部的方式放置。第3圖以後的電動送風機16是爲 了方便，將電動機2 1側設爲下方，將送風機2 2側設爲上 方。 第3圖當中’符號23是轉子，24是配置在轉子23之 -12- 201233908 外周側的定子，25是整流器，藉由這些即構成電動機21 。符號26是固定有轉子23及整流器25的旋轉軸，27及 28是旋轉自如地保持旋轉軸26的軸承，29是與整流器25 滑接的碳刷，30是將碳刷29按壓在整流器25之作爲彈推 手段的彈簧’ 31是與碳刷29電性連接的輸出端。整流器 25是設在轉子23下方。軸承27、28是分別設在轉子上方 及整流器25下方。碳刷29是配置在整流器25的外周側 。彈簧3 0是配置在碳刷29的外周側，由碳刷29及整流 器25推壓而朝旋轉軸26側推壓碳刷29。 符號3 3是用來收納電動機21並且保持軸承27的外 殻，34是保持碳刷29而固定在外殼33的碳刷保持具。碳 刷保持具34是設在外殼33的外周。外殻33具有送風機 22側的開口以及電動送風機出口 1 8的開口兩個開口。送 風機22側的開口是設在電動機22的上部，電動送風機出 口 18是設在外殼的周圍。符號35是設在外殼33之送風 機22側之開口側，並保持軸承28的端架。符號40是圓 環狀的葉輪，是藉由螺帽41固定在旋轉軸26。符號42是 配置在葉輪40之外周側的擴散器，43是配置成從外部覆 蓋葉輪40及擴散器42的風扇外殼。風扇外殼43與外殼 33是藉由風扇外殼43封住外殼之送風機22側的開口而接 合。在風扇外殼43的上中央部形成有用來吸入空氣的送 風機入口 17。 擴散器42是使略平面的圓環形狀的環狀支持體a50 及略彎曲形狀的擴散葉片42a —體化而形成。擴散葉片 -13- 201233908 42a是在環狀支持體a50的一方之面設有複數個。擴散 42是以環狀支持體a50之未設有擴散葉片42a之面形成 風機入口 17側的方式配置在電動送風機內。略平面的 環形狀的環狀支持體b52與略彎曲形狀的回流葉片45a 一體化而形成回流導件45。回流葉片45a是在環狀支持 b52的一方之面設有複數個。回流導件45是以回流葉 4 5 a成爲端架3 5側的方式配置在擴散器4 2的下側。而 ，在擴散器42與回流導件45之間設有略圓環狀的隔板 。前述擴散器42的擴散葉片42a與略圓環狀的隔板5 1 一面是藉由熔接或接著而接合，隔板51的另一面與回 葉片45 a是藉由熔接或接著劑而接合，藉此構成送風機 的定子葉片構造。本實施例的擴散葉片42a及回流葉 45a是形成略彎曲形狀，但是形狀不限於此。亦可分別 直線形狀、弧形狀等。 如以上所述，電動機21是在由外殼33及端架35 構成的電動機外殼，可旋轉地支持有旋轉軸26，在該旋 軸26可安裝轉子23，並且在該轉子23之外周側配置有 子24的構成。而且，藉由碳刷29以及與其接觸的整流 25的整流作用，可將電力供應至轉子23，並且產生連 的力矩。 送風機22是在風扇外殼43內收容有與前述旋轉軸 直接連結的葉輪40、固定設在該葉輪40之外周側的擴 器42、以及隔著略圓環狀的隔板5 1與該擴散器42相對 而配置的回流導件45的構成。 器 送 圓 是 體 片 且 5 1 的 流 22 片 爲 所 轉 定 器 續 26 散 面 -14- 201233908 在該構成當中’從送風機入口 17流入的空氣首先會 由葉輪40升壓並增速。之後，通過擴散器42的氣流會經 過彎曲流路4 7 ’然後轉向大約1 8 (Γ，並流入回流導件4 5 ，但是在該過程中，氣流會減速，因此壓力會上升。通過 回流導件45的氣流會流入外殼33內，使轉子23、定子 24、碳刷29及整流器25冷卻，並且從電動送風機出口 18 排出。 第4圖是本實施例之形態的定子葉片構造的分解時及 接合時的斜視圖。 本實施例是使擴散器42、隔板5 1及回流導件45分別 形成不同的構件而成形。 本實施例的擴散器42是在直徑約125mm、厚度約 1mm的略平面的環狀支持體a50的一方之面，設有17片 高度約7mm、厚度約0.8mm的略彎曲形狀的擴散葉片（變 流翼）42a。擴散葉片42a是以相鄰的擴散葉片42a之間的 寬度從環狀支持體a5 0的內周側朝外周側（從上游到下游） 逐漸變寬的方式設在環狀支持體a50。或是，以由相鄰的 擴散葉片42a及環狀支持體a50及隔板51所包圍而成的 面積從環狀支持體a50的內周側朝外周側逐漸變大的方式 設在環狀支持體a50。本實施例的該擴散葉片42a與前述 環狀支持體a5 0是藉由射出成形而一體成形。並不是使擴 散葉片42a及環狀支持體a50形成不同的構件並加以整形 之後再進行接合，而是藉由形成一體而成形，除了可減少 接合時之偏移或歪斜的效果之外，也有可減少作業步驟的 -15- 201233908 效果。由於具有環狀支持體a5 0 ’可埋入擴散器42與風扇 外殼43之間的間隙’因而可帶來效率的提升。由於是藉 由射出成形一體成形’在環狀支持體a50之未設置擴'散葉 片42a的面（與風扇外殼43相對的面）可能會產生因爲設有 擴散葉片42 a所產生的毛邊。然而，比起因爲毛邊所導致 的效率降低，設有環狀支持體a5 0所帶來的效率之提升更 勝一篛，因此設置環狀支持體a5 0有其意義在。又，本實 施例是使擴散葉片42a與環狀支持體a50 —體成形，但是 亦可形成不同的構件之後再接合。該時，雖會影響上述一 部分的效果，但是可獲得在環狀支持體a50之未設置擴散 葉片42a的面（與風扇外殼43相對的面）不會產生因爲設有 擴散葉片42a所導致的毛邊的效果。本實施例的材料是使 用結晶化的聚苯乙烯，即對排聚苯乙烯樹脂（Syndiotactic Polystyrene: S P S) ° 本實施例的隔板51是直徑約113mm、厚度約2.5mm 的略圓環狀的平面板，材料與擴散器42同樣是使用SPS 。本實施例的隔板5 1的內周側是圓形的環狀，但是外周 側是配合擴散葉片42a形成波浪形狀。內周側形成圓形的 環狀是爲了使其與旋轉軸26連通。使外周側形成波浪形 狀，具有可防止空氣從擴散器42移動至回流導件45時空 氣滯留以致效率降低的效果。隔板51的設置是爲了避免 在環狀支持體b52所產生的毛邊影響到擴散器42。本實施 例的隔板5 1是略圓環狀的平面板，但不限於此。由於是 爲了避免毛邊影響到擴散器側，因此只要至少擴散器側的 -16- 201233908 面是平面即可。隔板51可爲板狀構件或是比板材薄的構 件。或是，由於會在環狀支持體b52產生毛邊是在設置回 流葉片4 5 a之位置的相反側，因此隔板5 1亦可爲配合回 流葉片45a之配置的形狀，以隱藏該位置之毛邊的影響。 或是，亦可硏磨環狀支持體b52的表面直到毛邊不會影響 的部分.。在該情況，就不需要設置隔板5 1。或是，亦可使 回流葉片45a與環狀支持體b52 —體成形之後再使用補土 等埋入毛邊的部分。 本實施例的回流導件45是在直徑約113mm的略圓環 狀的環狀支持體b52的一方之面，設有1〇片筒度約5mm 、厚度約〗.2mm的略彎曲形狀的回流葉片（變流翼）45a。 環狀支持體b52的另一方之面具有凹面。回流葉片45a是 以相鄰的回流葉片45a之間的寬度從環狀支持體b52的外 周側朝內周側（從上游到下游）逐漸變窄的方式設在環狀支 持體b52。該回流葉片45a與前述環狀支持體b52是藉由 射出成形一體成形。並非形成不同的構件並加以整形之後 再進行接合，由於是藉由形成一體而成形，因此具有可減 少接合時的偏移或歪斜，作業步驟也會減少的效果。在環 狀支持體b52的另一方之面的內周部及外周部分別設置厚 度約1mm、高度約3mm的肋體53a及肋體53b。肋體53a 是位在環狀支持體b52的內周部，呈圓形。肋體53b是位 在環狀支持體b5 2啤外周部，是形成如擴散葉片42a之外 周的波浪形狀。回流導件45的材料也是與擴散器42及隔 板5 1同樣使用S P S。 -17- 201233908 本實施例的定子葉片構造是如第4(b)IH所示’在 器42與回流導件45之間，藉由熔接或接著劑將隔; 接合而構成。該時，擴散葉片42a與隔板51的一方 會被接合，環狀支持體b52的肋體53a及肋體53b與 51的另一方之面會被接合。 第5圖是第4(b)圖所示之本實施例的定子葉片構 A-A剖面圖。 將前述隔板51固接在設於回流導件45之環狀支 b52的外周部的肋體53a及內周部的肋體53b的上部 將擴散器42固接在前述隔板51上部。固接方法是使 音波熔接或熱熔接或是使用接著劑的接合等。而且’ 4(b)圖，以環狀支持體a50、擴散葉片42a、隔板51 狀支持體b52、回流導件45的順序便形成定子葉片構 根據以上的構成，因爲具有環狀支持體a50’擴 片42a與風扇外殼43之間的間隙被埋入’具有效率 升的效果。再者，隔板51與回流導件45的接合是在 肋體53a及肋體53b與隔板51之間進行’因此藉由 成形回流導件45，使環狀支持體b52與回流導件45 成形，並在環狀支持體b52的表面部53產生毛邊， 會對擴散器42與隔板51的接合部分所有影響。由於 毛邊的影響，因此具有可謀求送風機之效率的提升、 吸入性能不穩定的降低的效果。 (實施例2之形態） 擴散 反51 之面 隔板 造的 持體 ，再 用超 如第 、環 造》 散葉 會提 前述 射出 一體 也不 沒有 以及 -18- 201233908 第6圖是實施例2的定子葉片構造當中相當於第4(b) 圖之A-A剖面圖的部分。本實施例是使隔板5 1的外形小 型化成爲只有相當於外周部之肋體53a之板厚的量，並且 將前述肋體53a提高相當於隔板51之板厚的量。其他構 成與實施例1相同。 而且，隔板51的外徑側面是固接在設於回流導件4 5 之外周部的肋體5 3 a的內周側面。藉此，要接合回流導件 45與隔板51時，肋體53a會成爲將隔板51定位配置的導 件。根據以上所述，除了可謀求送風機之效率的提升以及 吸入性能不穩定的降低的效果之外，還可獲得可容易進行 定子葉片構造部之製程的效果。 (實施例3之形態） 實施例3是如第7圖所示，在形成於環狀支持體b52 之表面部53上’由隔板51'肋體53a及肋體53b所形成 的空間部5 4配置有吸音材5 5。其他構成與實施例1或實 施例2相同。吸音材的材質最好是具有發泡性的軟質聚氨 酯等的材質。藉此’除了可謀求送風機之效率的提升以及 吸入性能不穩定的降低的效果之外，還可獲得可謀求從電 動送風機1 6所產生的噪音之減少的效果。 (實施例4之形態） 實施例4是如第8圖所示’使回流導件* 5在直徑約 113mm的略圓環狀的環狀支持體b52設有1〇片高度約 -19- 201233908 5mm、厚度約1.2mm的略彎曲形狀的回流葉片（變流翼 )45a。其他構成與實施例1或實施例2或實施例3相同。 亦即，是在習知的定子葉片構造另外加上隔板51的構成 。藉此，即使在習知的隔板部分產生回流導件葉片的毛邊 ，由於可在其上方設置隔板，因此毛邊不會影響到擴散器 側。藉此，可獲得可謀求送風機之效率的提升以及吸入性 能不穩定的降低的效果。 【圖式簡單說明】 第1圖是本發明之一實施例的吸塵器全體的外觀斜視 圖。 第2圖是本發明之一實施例的吸塵器主體的模式橫剖 面圖。 第3圖是本發明之一實施例的電動送風機的橫剖面圖。 第4圖是本發明之實施例1之形態的定子葉片構造的 分解圖，以及接合時的斜視圖。 第5圖是本發明之實施例1之形態的定子葉片構造之 接合時的A-A剖面圖。 第6圖是本發明之實施例2之形態的定子葉片構造之 接合時的A-A剖面圖。 第7圖是本發明之實施例3之形態的定子葉片構造的 分解圖’以及接合時的斜視圖。 第8圖是本發明之實施例4之形態的定子葉片構造的 分解圖’以及接合時的斜視圖。 -20- 201233908 【主要元件符號說明】 1 :吸塵器 16 :電動送風機 21 :電動機 22 :送風機 23 :轉子 24 :定子 2 5 :整流器 2 6 :旋轉軸 33 :外殼 35 :端架 40 :葉輪 42 :擴散器 4 3 :風扇外殼 45 :回流導件 50 :環狀支持體a 5 1 :隔板 52 :環狀支持體b 5 3 :表面部 5 3 a :肋體a 53b :肋體b 5 4 :空間部 5 5 :吸音材 -21201233908 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to an electric blower and a vacuum cleaner including the same. [Prior Art] In the conventional electric blower, for example, Patent Document 1 discloses a technique having a stator vane structure in which a ring shape of a substantially planar ring shape is welded or subsequently The support 115b and the plurality of diffusion vanes H5a provided on one surface side of the annular support i15b are integrally formed of a resin-formed diffuser 115, and a substantially planar annular-shaped partition plate 1 15 c and a separator 1 are provided. The plurality of reflow sheets U 5d on one side of the 1 5 c are formed by joining together the reflow guides 122 integrally formed of the resin. The joining of the diffuser 1 15 and the return guide 1 22 is performed by joining the diffuser vanes 115a on the opposite side of the partition to the partition opposite to the surface on which the reflow guide 122 is provided. Further, Patent Document 2 discloses a technique of a stator blade structure in which a diffusion blade, a diaphragm, and a returning sheet are integrally formed. [PRIOR ART DOCUMENT] [Patent Document 1] Japanese Laid-Open Patent Publication No. 2007-2770 [Patent Document 2] Japanese Laid-Open Patent Publication No. 20-7-7769 [Description of the Invention] -5-201233908 In the technique described in Patent Document 1, the separator 1 15c and the reflow sheet 1 15d are integrally molded by injection molding such as resin molding, and the reflow guide 122 is formed. However, when the separator 1 15c and the reflow sheet 115d are integrally molded by injection molding or the like, the shape of the reflow sheet 1 15d may be generated on the side opposite to the surface of the separator 115c on which the reflow sheet 115d is provided. The raw edges. The burrs are pits and depressions caused by the formation shrinkage caused by the material in industrial products. For example, when the surface is flat, but the back surface has a concave-convex shape, the convex portion of the back surface may shrink and burrs may be formed on the surface side. Due to the burrs generated on the opposite side of the surface of the partition 115c and the diffusion vane 115a, a slight gap is generated when the diffusion vane 115a and the partition 115c are joined, and efficiency may be lowered or performance due to the generated gap. Unstable. The technique described in the above Patent Document 2 is also the same. Since the diffusion vane, the separator, and the reflow sheet are integrally molded by injection molding, a burr along the shape of the reflow sheet is generated on the surface of the diffusion vane, and there is a reflow. The face of the sheet may have a burr along the shape of the diffusing blade, and there is a possibility that the burr may cause a decrease in efficiency or a problem that performance may be unstable. Also, a gap is created between the fan casing covering the diffuser and the return guide and the diffusion vane, which may result in a decrease in efficiency. The present invention has been made in an effort to solve the above problems, and an object of the invention is to provide an electric blower capable of improving efficiency and reducing performance, and a vacuum cleaner including the same. 201233908 [Technical means for solving the problem] The electric blower of the present invention includes: a rotor having an armature winding; a stator having a field winding; a casing for accommodating the rotor and the stator; a rotating shaft provided on the rotor; and a bearing holding the rotating shaft End frame: an impeller fixed to the rotating shaft outside the end frame: a diffuser disposed on the outer side of the impeller; a reflow guide disposed on the end of the diffuser; and configured to cover the impeller, the diffuser, and the recirculation from the outside The electric blower of the fan casing of the guide member is characterized in that the diffuser integrally forms the annular support body a on the fan casing side and the diffusion vane on the side of the return guide, and the return guide is on the diffuser side so as to be on the outer peripheral portion. And an annular support body b having a rib on the inner peripheral portion and a return guide vane on the end frame side are integrally formed, and a substantially annular partition is disposed between the diffuser and the return guide, and is welded or then The diffuser and the return guide are joined to the partition or the electric blower of the present invention comprises: a rotor having an armature winding; a stator having a field winding; a housing; a rotating shaft provided on the rotor; an end frame of the bearing that holds the rotating shaft; an impeller fixed to the rotating shaft; a diffuser disposed on the outer side of the impeller; and a return guide disposed on the end of the diffuser; And an electric blower provided as a fan casing covering the impeller, the diffuser and the return guide, wherein the diffuser is composed of a plate member a and a plurality of diffusion blades provided on one surface of the plate member a, a plate shape The member a and the plurality of diffusion blades are integrally formed, and the return guide is composed of a plate member b and a plurality of return guide vanes provided on one surface of the plate member b, the plate member b and the plurality of return guide vanes It is integrally molded by injection molding, and a plate-shaped member c is provided between the diffuser and the return guide, and the diffuser, the plate-shaped member C, and the return guide are the plate-shaped member a and the diffusion vane from the upstream side. The plate member C, the plate member b, and the return guide vane are arranged in this order, and the separator 'diffusion vane and the annular support b are joined. Or the electric blower of the present invention comprises: a rotor having an armature winding; a stator having a field winding; a casing for accommodating the rotor and the stator; a rotating shaft provided on the rotor; and an end frame of the bearing holding the rotating shaft; An impeller on a rotating shaft; a diffuser disposed on an outer peripheral side of the impeller; a return guide disposed on an end frame side of the diffuser; and an electric blower disposed to cover a fan casing of the impeller, the diffuser, and the return guide, The diffuser is composed of a substantially planar annular annular support a and a plurality of diffusing vanes provided on one surface of the annular support a. The annular support a and the diffuser are integrally formed and reflowed. The guide member is composed of a substantially planar annular annular support b, a plurality of return guide vanes provided on one surface of the annular support b, and ribs provided on the other side of the annular support b. A substantially planar annular-shaped partition plate is disposed between the diffusion vane and the annular support b, and the annular support b, the reflow guide vane, and the rib are integrally formed by injection molding, and the partition, The diffusion vanes and ribs are joined. Or the electric blower of the present invention comprises: a rotor having an armature winding; a stator having a field winding; an outer casing for accommodating the rotor and the stator; a rotating shaft disposed on the rotor; and an end frame of the bearing holding the rotating shaft; An impeller fixed to a rotating shaft: a diffuser disposed on an outer peripheral side of the impeller; a reflow guide disposed on an end frame side of the diffuser; and an electric blower disposed to cover a fan casing of the impeller, the diffuser, and the return guide, The feature is that the diffuser-8-201233908 is composed of a member a and a plurality of diffusing vanes provided on one surface of the member a. The reflow guide is composed of a member b and a plurality of reflow guide vanes provided on one surface of the member b. A member c is disposed between the diffuser and the return guide, and the diffuser, the member c, and the return guide are arranged from the upstream side in the order of the member a, the diffusion vane, the member c, the member b, and the return guide vane. The purpose of the member c is to prevent the burr generated by the member b from affecting the diffuser side 〇 or the electric blower of the present invention is provided with: a rotor having an armature winding; a housing for housing the rotor and the stator: a rotating shaft provided on the rotor; an end frame of the bearing that holds the rotating shaft; an impeller fixed to the rotating shaft; a diffuser disposed on the outer peripheral side of the impeller; and disposed at the end of the diffuser a returning guide on the rack side; and an electric blower provided to cover the fan casing of the impeller, the diffuser and the return guide, wherein the diffuser is formed by a substantially annular annular support body a and Forming a plurality of diffusion vanes on one side of the support a, the plurality of diffusion vanes being disposed such that the width between adjacent diffusion vanes gradually changes from the inner peripheral side to the outer peripheral side of the annular support a The wide and reflow guide are integrally formed by injection molding the following members: a substantially annular annular support b, a plurality of return guide vanes provided on one surface of the annular support b, and a ring a rib a on the inner peripheral portion of the other side of the support b, a rib b provided on the outer peripheral portion of the other side of the annular support b, and a plurality of return guide vanes are disposed to be adjacent reflow guides The width between the pieces, The inner peripheral side of the annular support b is gradually widened toward the outer peripheral side, and the rib a is a ring-shaped projection. The rib b is a 201233908 protrusion that forms a shape along the outer circumference of the annular support b. An integrally formed slightly annular partition is disposed between the flow direction and the return guide, and one side of the diffusion vane and the partition is joined by welding or an adhesive, and the annular support b and the other side of the partition are Engage. [Effects of the Invention] According to the present invention, by forming the separator and the reflow guide into individual molded articles, the separator can be formed into a substantially annular flat plate shape, and the separator can be loaded into the diffuser and reflowed. Between the guides to avoid the burrs generated by the return guides from affecting the diffuser side. That is, even if the annular support of the reflow guide is burred, since the annular support of the spacer and the reflow guide are separately formed, a gap is not easily generated at the joint portion between the spacer and the diffuser, and thus Seek to improve efficiency and reduce performance instability. [Embodiment] Hereinafter, embodiments of the present invention will be described using the drawings. (Embodiment of Embodiment 1) Fig. 1 is a perspective view showing the appearance of the entire vacuum cleaner according to an embodiment of the present invention. Fig. 2 is a schematic cross-sectional view showing the main body of the cleaner according to an embodiment of the present invention. In the first embodiment, the cleaner 1 is provided with a vacuum cleaner main body 2, a pipe body 3, a hand operation pipe 4 provided with a hand operation switch, and an extension pipe 5 as a joint pipe, and an intake device 6 and a suction port 7 at the tip end thereof. Composition. One end of the pipe body 3 is connected to the suction port 20 of the cleaner body 2, and one end of the hand-operated pipe 4 is connected to the other end of the pipe body 3 to be connected. -10-201233908 One end of the extension pipe 5 is a hand-operated pipe The other end of the 4 is connected to the connection. The suction device 6 is connected to the other end of the extension tube 5 or the other end of the hand operation tube 4. The suction port 7 is the other end of the suction device 6 or the other end of the extension tube 5 or the hand. The other end of the operation tube 4 is connected to be connected. The dust sucked from the suction port 7 or the suction tool 6 flows to the cleaner body 2 through the extension pipe 5, the hand operation pipe 4, and the pipe body 3. In Fig. 2, the inside of the cleaner body 2 can be roughly divided into a collection chamber 11 in which dust sucked from the suction device 6 and the suction port 7 is collected through the pipe body 3 and the suction port 20; the inside can be arranged to generate suction. The electric blower chamber 12 such as the electric blower 16 of the force; and the reel chamber 10 of the reel 15 can be disposed on the lateral side of the electric blower chamber 12. The front side in the cleaner body 2 is the dust collecting chamber 11, the electric blower chamber 12 is located on the rear side in the cleaner body 2, and the reel chamber 10 is located on the rear side of the dust collecting chamber 11 and the electric blower chamber 12 Lateral side. The suction port 20 is located on the front side of the dust collecting chamber 11. A dust collecting bag 13 as a means for collecting the dust attracted by the suction port 20 by the suction force of the electric blower 16 is provided in the dust collecting chamber. Further, the means for collecting the dust may be a cyclone collecting portion in addition to the dust collecting bag 13. The dust bag 13 or the cyclone collecting portion can be detached from the cleaner body 2. In addition, the dust collecting bag 13 is often made of paper or the like. However, the material of the dust collecting bag 13 is not particularly limited, and the material is not disposed between the dust collecting chamber 11 and the electric blower chamber 12 . Filter unit 14. The filter portion 14 is formed of a fine mesh member. The filter unit 14 functions to remove the majority of the dust by the dust bag 13 at -11 - 201233908, and then deliver the refiltered air to the electric blower chamber 12. Further, in the event that the dust bag 13 is broken or the dust bag 13 is forgotten or the cyclone dust collecting portion is forgotten, the dust can be prevented from being fed into the electric blower chamber 12. The electric blower 16 is held in the electric blower chamber 12 via the anti-vibration rubber 19. The vibration of the cleaner body 2 and the noise due to the vibration are prevented by holding the electric blower 16 through the anti-vibration rubber 1 9 . The air passing through the dust bag 13 and the filter unit 14 flows into the electric blower 16 from the blower inlet 17 provided in the electric blower 16. The air that has flowed in from the blower inlet 17 is boosted by the electric blower 16, and is discharged from the electric blower outlet 18 provided in the electric blower 16. The air discharged from the electric blower outlet 18 of the electric blower 16 is directly discharged from the cleaner body 2. Or it is discharged from the cleaner body 2 after passing through the space of the configurable reel 15 . Next, the configuration of the electric blower 16 of the present embodiment will be described based on the cross-sectional view of the electric blower of Fig. 3. The electric blower 16 is mainly composed of an electric motor 21 and a blower 22. As shown in Fig. 2, the dust collecting chamber 11 is located in the front portion of the cleaner body 2, the electric blower chamber 16 and the reel chamber 1, and the electric blower 16 is placed in a state where the cleaner body 2 located at the rear of the cleaner body is horizontal. The rear portion of the electric motor 21 is formed, and the blower 22 is placed to form the front portion. For the convenience of the electric blower 16 of Fig. 3 and later, the motor 21 side is set to the lower side and the blower 2 2 side is set to the upper side. In Fig. 3, 'symbol 23 is a rotor, 24 is a stator disposed on the outer circumference side of -12-201233908 of the rotor 23, and 25 is a commutator, and the motor 21 is constituted by these. Reference numeral 26 is a rotating shaft to which the rotor 23 and the rectifier 25 are fixed, 27 and 28 are bearings for rotatably holding the rotating shaft 26, 29 is a carbon brush that is slidably connected to the rectifier 25, and 30 is a carbon brush 29 pressed against the rectifier 25. The spring '31, which is a spring pushing means, is an output end that is electrically connected to the carbon brush 29. The rectifier 25 is disposed below the rotor 23. The bearings 27, 28 are respectively disposed above the rotor and below the rectifier 25. The carbon brush 29 is disposed on the outer peripheral side of the rectifier 25. The spring 30 is disposed on the outer peripheral side of the carbon brush 29, and is pressed by the carbon brush 29 and the commutator 25 to push the carbon brush 29 toward the rotating shaft 26 side. Reference numeral 3 3 is a casing for accommodating the motor 21 and holding the bearing 27, and 34 is a carbon brush holder for holding the carbon brush 29 and fixed to the casing 33. The carbon brush holder 34 is provided on the outer circumference of the outer casing 33. The outer casing 33 has an opening on the blower 22 side and two openings in the opening of the electric blower outlet 18. The opening on the blower 22 side is provided at the upper portion of the motor 22, and the electric blower outlet 18 is provided around the outer casing. Reference numeral 35 is provided on the opening side of the blower 22 side of the outer casing 33, and holds the end frame of the bearing 28. Reference numeral 40 is a circular impeller fixed to the rotating shaft 26 by a nut 41. Reference numeral 42 is a diffuser disposed on the outer peripheral side of the impeller 40, and reference numeral 43 is a fan casing that is disposed to cover the impeller 40 and the diffuser 42 from the outside. The fan casing 43 and the casing 33 are joined by closing the opening of the casing on the side of the blower 22 by the fan casing 43. A blower inlet 17 for taking in air is formed at an upper central portion of the fan casing 43. The diffuser 42 is formed by forming a substantially planar annular annular support a50 and a slightly curved diffuser 42a. The diffusion vane -13- 201233908 42a is provided in plural on one surface of the annular support a50. The diffusion 42 is disposed in the electric blower such that the surface of the annular support a50 where the diffusion vane 42a is not provided is formed on the side of the fan inlet 17. The substantially planar ring-shaped annular support b52 is integrated with the slightly curved reflow blade 45a to form the return guide 45. The return vane 45a is provided in plurality on one surface of the annular support b52. The return guide 45 is disposed on the lower side of the diffuser 4 2 so that the return vanes 45 5 become the end frame 35 side. Further, a substantially annular spacer is provided between the diffuser 42 and the return guide 45. The diffusion vane 42a of the diffuser 42 and the slightly annular partition plate 5 1 are joined by welding or the other side, and the other surface of the partition 51 and the return vane 45 a are joined by welding or an adhesive. This constitutes the stator blade configuration of the blower. The diffusion blade 42a and the reflow blade 45a of the present embodiment are formed in a slightly curved shape, but the shape is not limited thereto. It can also be a straight line shape, an arc shape, or the like. As described above, the electric motor 21 is a motor casing composed of the outer casing 33 and the end frame 35, and rotatably supports a rotating shaft 26 on which the rotor 23 can be mounted, and on the outer peripheral side of the rotor 23 The composition of the child 24. Moreover, by the rectification of the carbon brush 29 and the rectification 25 in contact therewith, electric power can be supplied to the rotor 23, and a continuous torque is generated. The blower 22 houses an impeller 40 that is directly coupled to the rotating shaft, a diffuser 42 that is fixed to the outer circumferential side of the impeller 40, and a partition plate 51 that is slightly annular with the diffuser in the fan casing 43. 42 is configured to face the reflow guide 45. The feed circle is a body piece and the flow of 5 1 is the transfer of the device. 26 The face is scattered -14- 201233908 In this configuration, the air flowing in from the blower inlet 17 is first boosted and accelerated by the impeller 40. Thereafter, the airflow passing through the diffuser 42 passes through the curved flow path 4 7 'and then turns to about 18 (Γ, and flows into the return guide 4 5 , but in the process, the air flow is decelerated, so the pressure rises. The airflow of the member 45 flows into the casing 33, cools the rotor 23, the stator 24, the carbon brush 29, and the rectifier 25, and is discharged from the electric blower outlet 18. Fig. 4 is a view showing the decomposition of the stator blade structure of the embodiment of the present embodiment. The present embodiment is formed by forming the diffuser 42, the partition 51, and the return guide 45 into different members. The diffuser 42 of the present embodiment has a diameter of about 125 mm and a thickness of about 1 mm. One surface of the planar annular support a50 is provided with 17 sheets of diffusing blades (variable fins) 42a having a height of about 7 mm and a thickness of about 0.8 mm. The diffusion vanes 42a are adjacent diffusion vanes 42a. The width between the annular support bodies a50 is gradually widened from the inner circumferential side toward the outer circumferential side (from the upstream to the downstream), and is provided in the annular support body a50. Alternatively, the adjacent diffusion blades 42a and the ring shape are provided. Support body a50 and partition 51 The area formed is gradually increased from the inner peripheral side to the outer peripheral side of the annular support body a50, and is provided in the annular support body a50. The diffusion vane 42a of the present embodiment and the annular support body a50 are ejected. The molding is integrally formed. The diffusion vane 42a and the annular support a50 are not formed into different members and shaped, and then joined, but formed by being integrally formed, in addition to reducing the offset or skew during joining. In addition, there is also an effect of reducing the working procedure from -15 to 201233908. Since the annular support body a50' can be buried in the gap between the diffuser 42 and the fan casing 43, the efficiency can be improved. The surface of the annular support body a50 where the expanded blade 42a is not provided (the surface opposite to the fan casing 43) may be integrally formed by injection molding. The burrs generated by the diffusion blades 42a may be generated. However, compared with Because the efficiency caused by the burrs is reduced, the efficiency of providing the annular support a50 is better, so the provision of the annular support a50 has its meaning. Moreover, this embodiment is to expand The blade 42a is integrally formed with the annular support body a50, but may be formed by forming different members and then joined. At this time, although the effect of the above part may be affected, the diffusion blade 42a may be provided in the annular support body a50. The surface (the surface opposite to the fan casing 43) does not have the effect of burrs caused by the provision of the diffusion vanes 42a. The material of this embodiment is a crystallized polystyrene, that is, a Syndiotactic Polystyrene. : SPS) ° The separator 51 of the present embodiment is a substantially annular flat plate having a diameter of about 113 mm and a thickness of about 2.5 mm, and the material is the same as that of the diffuser 42 using SPS. The inner peripheral side of the partition plate 51 of the present embodiment has a circular annular shape, but the outer peripheral side is formed with a wave shape in cooperation with the diffusion vane 42a. The inner peripheral side is formed in a circular ring shape in order to communicate with the rotating shaft 26. The outer peripheral side is formed in a wavy shape, and has an effect of preventing air from escaping when the air is moved from the diffuser 42 to the return guide 45, so that the efficiency is lowered. The partition 51 is provided to prevent the burrs generated in the annular support b52 from affecting the diffuser 42. The partition plate 51 of the present embodiment is a substantially annular flat plate, but is not limited thereto. Since it is to prevent the burrs from affecting the diffuser side, it is sufficient that at least the -16-201233908 surface of the diffuser side is a flat surface. The partition 51 may be a plate member or a member thinner than the plate. Alternatively, since the burr is generated on the opposite side of the position where the reflow blade 45a is provided in the annular support b52, the partition 51 may also have a shape matching the configuration of the reflow blade 45a to hide the burr at the position. Impact. Alternatively, the surface of the annular support b52 may be honed until the portion where the burrs do not affect. In this case, it is not necessary to provide the spacer 51. Alternatively, the reflow blade 45a and the annular support b52 may be integrally formed, and then the portion where the burr is buried may be used. The reflow guide 45 of the present embodiment is formed on one surface of a substantially annular annular support b52 having a diameter of about 113 mm, and is provided with a recursive shape of a slightly curved shape having a thickness of about 5 mm and a thickness of about 2. 2 mm. Blade (variable flow) 45a. The other surface of the annular support b52 has a concave surface. The return vane 45a is provided in the annular support b52 so that the width between the adjacent return vanes 45a gradually narrows from the outer peripheral side to the inner peripheral side (from the upstream to the downstream) of the annular support b52. The reflow blade 45a and the annular support b52 are integrally molded by injection molding. Since the different members are not formed and then joined and then joined, since they are formed by being integrally formed, there is an effect that the offset or skew at the time of joining can be reduced, and the number of work steps can be reduced. A rib 53a and a rib 53b having a thickness of about 1 mm and a height of about 3 mm are provided in the inner peripheral portion and the outer peripheral portion of the other surface of the annular support b52. The rib 53a is located on the inner peripheral portion of the annular support b52 and has a circular shape. The rib 53b is located at the outer peripheral portion of the annular support b5 2 and is formed in a wave shape such as the outer periphery of the diffusion blade 42a. The material of the reflow guide 45 is also the same as the diffuser 42 and the spacer 51. -17-201233908 The stator blade structure of the present embodiment is constructed by joining between the spacer 42 and the return guide 45 as shown in Fig. 4(b)IH by welding or an adhesive. At this time, one of the diffusion vane 42a and the partition plate 51 is joined, and the other surface of the rib 53a of the annular support b52 and the ribs 53b and 51 is joined. Fig. 5 is a cross-sectional view showing the stator blade structure A-A of the embodiment shown in Fig. 4(b). The partition plate 51 is fixed to the upper portion of the rib 53a provided on the outer peripheral portion of the annular branch b52 of the reflow guide 45 and the rib 53b of the inner peripheral portion. The diffuser 42 is fixed to the upper portion of the partition plate 51. The fixing method is to fuse or heat-weld or use an adhesive bonding or the like. Further, in the '4 (b) diagram, the stator blade structure is formed in the order of the annular support a50, the diffusion blade 42a, the spacer 51-shaped support b52, and the return guide 45, according to the above configuration, since the annular support a50 is provided. The gap between the expansion piece 42a and the fan casing 43 is buried in the effect of having an efficiency increase. Furthermore, the joining of the partition 51 and the return guide 45 is performed between the rib 53a and the rib 53b and the partition 51. Therefore, the annular support b52 and the return guide 45 are formed by forming the return guide 45. Forming and generating burrs on the surface portion 53 of the annular support b52 affects the joint portion of the diffuser 42 and the separator 51. Due to the influence of the burrs, there is an effect that the efficiency of the blower can be improved and the suction performance is unstable. (Form of the second embodiment) The holder made of the separator of the counter surface of the counter-51 is used, and the above-mentioned shots are not used in the case of the super-leaf and the ring-shaped leaves. 18-201233908 FIG. 6 is the embodiment 2 The portion of the stator blade structure corresponding to the AA cross-sectional view of Fig. 4(b). In the present embodiment, the outer shape of the partition plate 51 is reduced to an amount corresponding to the thickness of the rib 53a corresponding to the outer peripheral portion, and the rib 53a is increased by an amount corresponding to the thickness of the partition plate 51. The other constitution is the same as that of the first embodiment. Further, the outer diameter side surface of the partition plate 51 is fixed to the inner peripheral side surface of the rib 5 3 a provided on the outer peripheral portion of the return flow guide 45. Thereby, when the return guide 45 and the spacer 51 are to be joined, the rib 53a serves as a guide for positioning the spacer 51. According to the above, in addition to the effect of improving the efficiency of the blower and reducing the instability of the suction performance, the effect of facilitating the process of the stator blade structure portion can be obtained. (Embodiment 3) The third embodiment is a space portion 5 formed by the partition 51' rib 53a and the rib 53b formed on the surface portion 53 of the annular support b52 as shown in Fig. 7. 4 is equipped with a sound absorbing material 5 5 . Other configurations are the same as those of the first embodiment or the second embodiment. The material of the sound absorbing material is preferably a material such as foaming soft polyurethane. In addition to the effect of improving the efficiency of the blower and reducing the instability of the suction performance, the effect of reducing the noise generated from the electric blower 16 can be obtained. (Form of the fourth embodiment) In the fourth embodiment, as shown in Fig. 8, the reflow guide member 5 is provided with a one-piece height of about -19-201233908 in a ring-shaped annular support b52 having a diameter of about 113 mm. A slightly curved reflow blade (variable flow vane) 45a of 5 mm and a thickness of about 1.2 mm. Other configurations are the same as those of the first embodiment or the second embodiment or the third embodiment. That is, a configuration in which a spacer 51 is additionally provided in a conventional stator blade structure. Thereby, even if a burr of the return guide vane is produced in the conventional partition portion, the burr does not affect the diffuser side since the partition can be provided above it. As a result, it is possible to obtain an effect of improving the efficiency of the blower and reducing the instability of the suction performance. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view showing the appearance of an entire vacuum cleaner according to an embodiment of the present invention. Fig. 2 is a schematic cross-sectional view showing the main body of the cleaner according to an embodiment of the present invention. Fig. 3 is a cross-sectional view showing an electric blower according to an embodiment of the present invention. Fig. 4 is an exploded perspective view showing the structure of the stator blade of the embodiment of the first embodiment of the present invention, and a perspective view at the time of joining. Fig. 5 is a cross-sectional view taken along the line A-A of the stator blade structure in the embodiment of the first embodiment of the present invention. Figure 6 is a cross-sectional view taken along line A-A of the stator blade structure of the embodiment of the second embodiment of the present invention. Fig. 7 is an exploded view of the stator blade structure of the embodiment of the third embodiment of the present invention, and a perspective view at the time of joining. Fig. 8 is an exploded perspective view showing the stator blade structure in the form of the fourth embodiment of the present invention, and a perspective view at the time of joining. -20- 201233908 [Description of main components] 1 : Vacuum cleaner 16 : Electric blower 21 : Motor 22 : Blower 23 : Rotor 24 : Stator 2 5 : Rectifier 2 6 : Rotary shaft 33 : Housing 35 : End frame 40 : Impeller 42 : Diffuser 4 3 : Fan casing 45 : Reflow guide 50 : Annular support a 5 1 : Partition 52 : Annular support b 5 3 : Surface portion 5 3 a : Rib a 53b : Rib b 5 4 : Space Department 5 5 : Sound Absorbing Materials-21