201126067 六、發明說明： 【發明所屬之技術領域】 本發明係關於-種扇輪，特別 流且降低風扇運轉噪音之扇輪。 重此夠減少渦 【先前技術】 —^般習知扇輪係設置於巾， 不’其揭示一種習知扇輪8，其包含 :弟】圖所 幻，該輪轂81設有一轉動軸8n , 又 數個葉片 ’用以作為旋韓古si ^ 數個莱片82 #間距排列設置 疋轉支點。该 M 八81外周面。各兮签 刀別具有一迎風側、緣82】、—出風側緣822及一 j :緣823，當該習知扇輪8運轉時，外界空氣合從:t向 片82之迎風側緣821被軸向吸入，並在通過各曰該葉片： 之 <，經由各該茱片82之出風側 此这 風散熱的目的。 、出糟此達到驅 凊參照第2圖所+，i秋上·、I、 M ^ ^ ;刖述習知扇輪8係屬一種轴 二式風扇之扇輪’各該葉片82 種= 其驅風方向係對庫補 孕门至預斜狀叹置’故 流通過各該葉片8=二為―在氣 82的表面側向卜流容易沿著各該葉片 ;衣囟惻向攸5亥徑向端緣82 流容易在該徑向端緣8 2 3m 等致外漏之側向乳 造成產生雌及氣流擾動，進而 :連轉^如，朗時影㈣散熱效能。 知扇輪 8 _ ’ P f 號「風扇葉片導流結構二:華;=了3372 J知月專利，其包含一輪轂91及數 201126067 個葉片92，該葉片92等間距排列設置於該輪轂91外周 面，該葉片92具有一迎風側緣921、一出風侧緣922及一 徑向端緣923。該習知扇輪9主要係於該葉片92表面增設 一導板93，該導板93選自一圓弧板，其靠近該徑向端緣 923，且與該葉片92表面相互垂直。 在習知扇輪9運轉時，外界空氣係從各該葉片92之 迎風側緣921被軸向吸入，當氣流通過各該葉片92表面 時，因離心作用而側向朝該徑向端緣923流動的部分氣流 會受到該導板93的止擋，而被導引朝該出風側緣922流 動，藉此避免氣流側向溢流，以進一步增進驅風效能及降 低整體噪音。 然而，隨著風扇尺寸微型化的趨勢，其風扇構件尺寸 也需要進一步微型化，由於該習知扇輪9主要係選擇凸設 該導板93來防止氣流侧向溢流的情形發生，導致該導板 93相對該葉片92表面形成凸起的設置方式反而造成該習 知扇輪9的軸向高度過高等缺點，風扇扇框必須對應該導 板93的尺寸預留適度空間，才能避免該習知扇輪9運轉時 不會與風扇扇框之間相互碰撞干涉，其確實不利於微型風 扇的製作及應用。 再者，該導板93的設置同時造成該習知扇輪9整體 重量的增加，特別是扇輪重量的增加會同時導致風扇裝置 的耗電量增加，造成風扇裝置更加耗費能源。又，該導板 9 3的增設亦額外增加了該習知扇輪9在製作時的原物料耗 費，使得製作成本提高。基於上述原因，前述習知扇輪9 其確實仍有加以改善之必要。 201126067 【發明内容】 本發明係提供一種扇輪，主要係減 在端緣處產生_纽應，以降彳 〜通過扇^ 目的。 降低運轉口呆音，為本發明之 本發:月係提供一種扇輪，係具有輕量化特性，能夠有 風扇運轉的負載’以降低運轉耗能，為本發明之另 右供一種扇輪’係可應用於微型化風扇上， 有利於鈿小風扇尺寸，為本發明之再—目的。 本發明係提供輪，係有效減少製作物料的耗 費，以降低生產成本，為本發明之再—目的 為達到前述發明目的，本發明所運用之技術手段及藉 由該技術手段所能達到之功效包含有： 一種扇輪，其包含―輪數及數個葉片，該數個葉片設 置於該輪轂之外周面。各該葉片分別具有一迎風面及一背 風面，且各該葉片周緣形成有一迎風側緣、〆出風側緣及 -徑㈣緣’該徑向端緣形成於該葉片之自由端。其中’ 各該茱片設有至少-導引溝槽，該導引溝槽設置於該迎風 面及背風面之至少-表面上，且鄰近該㈣端緣，該導引 溝槽自該迎風側緣朝該出風側緣方向延伸設置。 、、本發明主要係利用該導引溝槽來減少扇輪葉片的側 向没流，以減少該扇框與該葉片末端之間產生渦流的情 =丄藉此有效降低風扇運轉時在特定頻率下產生的最大嗓 音量，以及風扇整體的風切噪音。、 201126067 【實施方式】 為讓本發明之上述及其他目的、特徵及優 易懂，下文特舉本發明之較佳每 、，"更月頌 作詳細說明如下： 車乂佳以例，亚配合所附圖式， ”第4及5圖所示，本發明第一實施例之扇輪主 要从用於-風扇裝置7上（如第8圖所示），且該風 置7較佳為軸流式風扇，並包 羽v ==圓筒狀’該數個葉片2係排列設置於該 各該葉片2相對該輪穀1之轴向呈傾斜 該輪fc】設有—頂蓋部心―環牆部m 13 ’該環牆部12係觀於_蓋部 」= *4 Μ ]] r u+ Ar7 心y卜周、·录’且§亥頂 ; = ==繞形成，間14,該容置 軸_;容二=標示)對應組裝嵌入。該轉動 中心位置。置工間]4内，且對應設置於該頂蓋部之 各該葉片2之相對二表面分別為 風面22,該迎風面2]俜為哕葦片A面2】及一为 風口（耒P 為片朝向該風扇裝置7入 不不）的表面，該背風面22則為 風扇裝置7出風σ (未片2朝向該 又，各 ^林不）的表面（凊茶照第8圖所示）。 及-Γ成有一侧緣23、-軸 ▲而、、表25，該迎風側緣23及出 於_風面2j_f_2 別形成 側緣^靠近該_ 位置’其中該迎風 該環牆部】2底邛。π ^ # "出風側緣24則靠近 底I#向端緣25係形成於該葉片2遠離 201126067 該輪敍]之-端，且該端亦為一自由端，該徑向 之輪躲佳為流線弧形設計，藉此減少該 轉5 生之風切噪音。 逆轉化產 請參照第5及6圖所示，各該葉片2另設有至小—首 引溝槽26，該導引溝槽26可選擇設置於該迎風面^ ^ 2:面42二t少一表面上’本實施例係選擇將該導心 认置於—風面22作為實施樣態說明。該導 曰 較佳位於該迎風側緣23與該出風侧緣24之間，且= =導引溝槽26二端與該迎風側緣23及出風側緣^ 有-間隔距離。其中’該導引溝槽26在徑向上設 徑向端緣25處，其設置方向係自該迎風側緣23朝^ 向延伸，且該導引溝槽26亦對應設置_徑 向而緣25之-側，與該徑向端緣25之間保持有— ^。又’本實施例之導引溝槽26選擇為—弧形溝槽，、其; 視形狀係為半圓弧狀（如第8圖所示）。 "α 二㈣第7及8圖所示’本發明之扇輪於 =使用時’隨著該扇輪的轉動，外界空氣經= 入各該葉片2之間，當氣流通過各該葉二 、“I流會沿著該葉片2之迎風面21及相鄰201126067 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a fan wheel that is particularly fan-flowing and that reduces fan noise. This is enough to reduce the vortex. [Prior Art] - The conventional fan wheel system is disposed on the towel. It does not disclose a conventional fan wheel 8, which includes: a brother, the wheel 81 is provided with a rotating shaft 8n. A number of blades are used to set up the fulcrum fulcrums as a number of slabs. The M eight 81 outer peripheral surface. Each of the knives has a windward side, a rim 82], an outlet side 822, and a j: 823. When the conventional fan 8 is in operation, the outside air merges from: t to the windward side of the piece 82. The 821 is axially inhaled and passes through the respective blades: < through the wind side of each of the cymbals 82. According to Fig. 2, i Qiu, · I, M ^ ^; the conventional fan wheel 8 is a kind of fan of the shaft two type fan's 82 kinds of the blade = its The direction of the wind is on the reservoir to the pre-slanted sigh. 'The flow through each of the blades 8=two is--the surface of the gas 82 is easy to flow along the surface of the blade; The flow of the radial end edge 82 easily causes the female and the airflow to be disturbed to the side of the outer end of the radial end edge 8 2 3m, and further, the heat transfer performance is improved. Knowing the fan wheel 8 _ 'P f number "fan blade diversion structure 2: Hua; = 3372 J Zhiyue patent, which includes a hub 91 and a number of 201126067 blades 92, the blades 92 are arranged at equal intervals on the hub 91 The outer peripheral surface of the blade 92 has a windward side edge 921, an air outlet side edge 922 and a radial end edge 923. The conventional fan wheel 9 is mainly provided with a guide plate 93 on the surface of the blade 92. The guide plate 93 is provided. It is selected from a circular arc plate adjacent to the radial end edge 923 and perpendicular to the surface of the blade 92. When the conventional fan wheel 9 is in operation, the outside air is axially axially from the windward side edge 921 of each of the blades 92. Inhalation, when the airflow passes through the surfaces of the blades 92, a portion of the airflow that flows laterally toward the radial end edge 923 due to centrifugation is blocked by the guide plate 93 and is guided toward the air outlet side edge 922. Flow, thereby avoiding lateral overflow of the airflow to further enhance the driving efficiency and reduce the overall noise. However, as the size of the fan is miniaturized, the size of the fan member needs to be further miniaturized due to the conventional fan wheel 9 Mainly choose to protrude the guide plate 93 to prevent lateral overflow of the airflow. The formation of the shape of the guide plate 93 relative to the surface of the blade 92 instead causes the axial height of the conventional fan wheel 9 to be too high, and the fan frame must have a proper space for the size of the guide plate 93. In order to prevent the conventional fan wheel 9 from running and colliding with the fan frame, it is not conducive to the manufacture and application of the micro fan. Furthermore, the arrangement of the guide plate 93 simultaneously causes the conventional fan wheel. The increase in the overall weight, in particular the increase in the weight of the fan wheel, also leads to an increase in the power consumption of the fan unit, which makes the fan unit more energy-intensive. Moreover, the addition of the guide plate 9 also adds to the conventional fan wheel 9 The cost of the original material at the time of production increases the production cost. For the above reasons, the conventional fan 9 does have a need for improvement. 201126067 SUMMARY OF THE INVENTION The present invention provides a fan wheel, which is mainly reduced at the end. The origin of the _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The fan running load 'to reduce the running energy consumption, and the other is a fan wheel for the present invention' can be applied to the miniaturized fan, which is advantageous for reducing the size of the fan, which is a re-purpose of the present invention. The present invention provides The wheel is effective for reducing the cost of the production material, so as to reduce the production cost. For the purpose of the present invention, the technical means and the functions achievable by the technical means include: a fan wheel, comprising: a number of wheels and a plurality of blades, wherein the plurality of blades are disposed on a peripheral surface of the hub. Each of the blades has a windward surface and a leeward surface, and each of the blades is formed with a windward side edge, The wind exit side edge and the - diameter (four) edge 'the radial end edge are formed at the free end of the blade. Wherein each of the cymbals is provided with at least a guiding groove disposed on at least a surface of the windward surface and the leeward surface adjacent to the (four) end edge, the guiding groove from the windward side The edge extends toward the side edge of the wind outlet. The present invention mainly utilizes the guiding groove to reduce the lateral flow of the fan blade to reduce the occurrence of eddy current between the fan frame and the blade end, thereby effectively reducing the fan at a specific frequency. The maximum volume produced underneath, as well as the overall wind noise of the fan. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to make the above and other objects, features and advantages of the present invention, the preferred embodiments of the present invention are described in detail below. With reference to the drawings, "the fourth embodiment of the present invention, the fan wheel of the first embodiment of the present invention is mainly used for the fan unit 7 (as shown in Fig. 8), and the wind 7 is preferably An axial flow fan and a package feather v == cylindrical shape. The plurality of blades 2 are arranged in an array in which the blades 2 are inclined with respect to the axial direction of the trough 1 . The wheel fc is provided with a top cover portion ― Ring wall part m 13 'The ring wall part 12 is seen in the _ cover part" = *4 Μ ]] r u+ Ar7 heart y 卜 weeks, · recorded 'and § hai top; = == winding formation, between 14, The receiving axis _; capacity two = mark) corresponds to the assembly embedding. The center of rotation. In the working room 4, the opposite surfaces of the blades 2 corresponding to the top cover portion are respectively the wind surface 22, and the windward surface 2] is a slab A surface 2] and a vent ( P is the surface of the sheet facing the fan device 7, and the leeward surface 22 is the surface of the fan device 7 with the wind σ (the piece 2 is facing the other, and each is not) (凊茶照8图图Show). And - has a side edge 23, - axis ▲ and, table 25, the windward side edge 23 and the _ wind surface 2j_f_2 do not form a side edge ^ close to the _ position 'where the wind is the ring wall part 2 bottom Hey. π ^ # " The wind side edge 24 is formed near the bottom I# to the end edge 25 is formed at the end of the blade 2 away from the 201126067 wheel, and the end is also a free end, the radial wheel hiding The best streamlined arc design reduces the wind noise of the turn. For the reverse conversion production, please refer to the figures 5 and 6, each of the blades 2 is further provided with a small-first guiding groove 26, and the guiding groove 26 can be selectively disposed on the windward surface ^^2: surface 422t On the lesser surface, the present embodiment selects the guide to be placed on the wind surface 22 as an embodiment. Preferably, the guide is located between the windward side edge 23 and the wind outlet side edge 24, and == the two ends of the guide groove 26 are spaced apart from the windward side edge 23 and the wind outlet side edge. Wherein the guiding groove 26 is provided with a radial end edge 25 in the radial direction, and the setting direction thereof extends from the windward side edge 23 toward the direction of the direction, and the guiding groove 26 is also correspondingly disposed with the radial direction 25 The - side, and the radial end edge 25 are maintained with - ^. Further, the guide groove 26 of the present embodiment is selected as an arcuate groove, and the view shape is a semi-arc shape (as shown in Fig. 8). "α 二(四) Figures 7 and 8 show 'the fan wheel of the present invention when used> when the fan wheel rotates, the outside air passes between each of the blades 2, and when the airflow passes through each of the blades 2 "I flow will follow the windward face 21 of the blade 2 and adjacent
St::出風側緣24流動，並直接從該風輕 朝^^ 另—部份氣流則會因離心作用而側向 26 25綠。由於該f風面22設有該導引溝槽 ==部分氣流在沿著該賴面21朝難㈣緣^側 氣流會受到該導引溝槽26的引導轉而沿著 A溝槽26朝向該出風側緣24流動。同時，藉由沿著 201126067 3玄導引溝槽26流動的氣流亦會形成導引氣流’來牽引側向 氣流朝該出風侧緣24流動。藉此，避免氣流從該徑向端緣 25側向溢流外洩’進而減少該風扇裝置7之 一扇框71與 葉片2之間產生渦流效應，有效提升驅風效能並降低風 扇整體運轉噪音。 —4麥照表一所示，其係針對本發明之扇輪與習知扇輪 8員際應用於軸流式風扇上，且在轉遠32〇Orpm及37〇〇romSt:: The wind side edge 24 flows, and directly from the wind toward the ^^ another part of the airflow will be laterally 26 25 green due to centrifugation. Since the f wind surface 22 is provided with the guiding groove== part of the airflow is directed along the inclined surface 21 toward the hard (four) edge, the airflow is guided by the guiding groove 26 and is directed along the A groove 26. The outlet side edge 24 flows. At the same time, the airflow flowing along the 201126067 3 guide groove 26 also forms a pilot airflow 'to draw the lateral airflow toward the windward side edge 24. Thereby, the airflow is prevented from leaking from the side of the radial end edge 25, thereby reducing the eddy current effect between the fan frame 71 and the blade 2 of the fan device 7, effectively improving the driving efficiency and reducing the overall running noise of the fan. . - 4 Mai Zhao shown in Table 1, which is applied to the axial fan of the fan wheel of the present invention and the conventional fan wheel, and is rotated at 32 〇 Orpm and 37 〇〇 rom.
的運作％境下進行實作職。其巾，由表_可知，以本發 明之扇輪進行賴喊扇，其在轉速為3, _且頻率為 372 Hz日守會產生21.53分貝的最大。桑音量；以及，在轉速 為37〇0rpm且頻率為431 Hz時會產生η】分貝的最 音量。 〃The actual operation of the operation is carried out in the context of the operation. According to the table, it can be seen that the fan wheel of the present invention performs the screaming fan, and the maximum speed of 21.53 decibels is generated at a speed of 3, _ and a frequency of 372 Hz. The mulberry volume; and, at a speed of 37 〇 0 rpm and a frequency of 431 Hz, produces a maximum volume of η] decibels. 〃
反觀以白知扇輪8進行測試的風扇，其在轉速為道 聊且頻率為373 ΗΖ時會產生26.13分貝的最大澡音量； 3二，為靡—且頻率為432 Ηζ時會產生26.7C 二==量。相較之下’本發明之扇輪相對習知扇 2目^啊料產生喊大_«效減少了 4.6刀貝（約減少了 16.7% );而在韓 士 生的最大劈音更大幅減少了 7 、’’’、 啊日寸所產 Λ42分貝C約減少了 27.8% )。 喝㈣音測試結果。 轉速（rpm)最大噪音(此） 本發明 3200 3700 21.53 ---- 19.28 產生最大噪音的 屋率（Hz) 372 431 201126067 習用扇 輪 3200 26.13 373 一 3700 26.70 432 本發明之主要技術特點在於：藉由在該葉片2之让風 面2】及背風面22的至少一表面上設置該至少一導引溝槽 26 ’且該導引溝槽26靠近該徑向端緣，以利用該導引溝槽 26導引側向氣流轉而朝向該出風側緣24流動。藉此，避 免氣流從該控向端緣25侧向溢流，減少該扇框71與亥葉 片2之間產生的渦流效應，使得本發明之扇輪能夠有效降 低該風扇裝置7運轉時在特定頻率下產生的最大嗓音量， 以及風扇整體的風切噪音。 北人，田於琢導引溝槽26相對該葉片2之迎風面21或 月風面22係王凹人狀’使得本發明扇輪之整體體積得以縮 減，進而得以相對習知扇輪S、9更加輕量化，以降低風扇 運轉的負載，猎此達到節能省電及減少原物料耗費的目的。 引、盖;、相對°玄迎風面21或背風面22呈凹入設置的導 1/冓礼26並不會額外i 一 ^ 屬輪所需的容置轴向局度’使得本發明之 |而町谷置及轉動空間能夠 1 、 凌置7之微型化設計。 /、有利於該風扇 請參照9及1〇同& ^ 屬輪，相較於第—實/^、、揭示本發明第二實施例之 端係貫穿連接施例之導⑽槽26的二 空氣細^迎風側緣23及出風側緣24，#此〜k田 由该迎風側緣23被吸人 ^^外界 以侍以直接绖由 Λ茶片2之間時，部分氣 朝該出風側緣247動風側 爪動，错由該導引溝槽26内之氣流及導 —10 * 201126067 ^溝槽26自身形成的凹陷設計來導引朝該徑向端緣^流 =1向氣流’讓側向氣流順著該導引溝槽26朝該出風側 、：4饥動’減少側向氣流從該徑向端、緣25外茂，避免該 與該葉片2之間產生顺效應，進—步降低風扇整 體運轉噪音。 凊茶照11圖所示，其揭示本發明第三實施例之扇輪， • 相較於第一實施例，第三實施例之各該背風面22上設有一 導f溝槽26及一輔助導引溝槽26,，該導引溝槽26設置 於该控向端緣25及輔助導引溝槽26，之間，其中該導引溝 槽26之構造形狀A致相同於第—實關巾之導引溝槽 26’於此不再詳細贅述。另外，該輔助導引溝槽％，並^ f置於該輔助導引溝槽26—側，且該辅助導引溝槽26,的 叹置方向及輪廓形狀係相似於該導引溝槽26。 另外，該輔助導引溝槽26,之二端與曰該迎風側緣23及 出風側、、彖24亦留有-間隔距離，但由於該導引溝样％之 • ^度大於該輔助導引溝槽加之長度，使得該輔料引溝 '26,二端相對該迎風側緣23及出風側緣％之間的間隔 距離大於該導㈣槽26二端相_賴側緣Μ及出風側 • 緣24之間的間隔距離。 . >本實施例藉由在該背風面22靠近該徑向端緣25處並 列设有該導引溝槽26及輔助導引溝槽26,，使得沿著該背 風面22侧向流動的部分氣流能夠在側向流動時依序受: 該導引溝槽26及輔助導引溝槽26,的連續止擋及導引，騎 而朝向該出風· 24流動，更進一步確保侧向氣流不續 該徑向端緣25側向溢流外茂，減少該扇樞71盥嗦^ 2 201126067 之間產生渦流的情況’藉此降低該風扇裝置7在特定頻率 下產生的最大風切噪音及整體運轉噪音量。 請參照12圖所示，其揭示本發明第四實施例之扇輪， 相較於第一實施例，第四實施例之導流溝槽26選擇設置於 该葉片2之迎風面21，其中該導引溝槽26設置於該迎風 側緣23與該出風側緣24之間，且在徑向上位於靠近該徑 向立而緣25處’其構造形狀大致相同於第一實施例中之導引 溝槽26，於此不再詳細贅述。 本實施例之導引溝槽26設置於該迎風面21，其仍可 達到相同於本發明第一實施例之功效，能夠進一步減少該 扇框71與該葉片2之間產生的渦流效應，以降低風扇整體 運轉呆音。綜上所述，本發明之導引溝槽26不論選擇單獨 δ又置於各該葉片2之迎風面21或背風面22，或者同時設 置於该迎風面21及背風面22上，甚至僅改變該導引溝槽 26的設置數量，均屬本發明之技術範疇，其不受限於前述 實施例的諸多使用樣態。 雖然本發明已利用上述較佳實施例揭示’然其並非用 以限定本發明，任何熟習此技藝者在不脫離本發明之精神 和範圍之内，相對上述實施例進行各種更動與修改仍屬本 發明所保護之技術範4，因此本發明之保護範圍當視後附 之申請專利範圍所界定者為準。 —12 — 201126067 【圖式簡單說明】In contrast, the fan tested with the white fan wheel 8 will produce a maximum bath volume of 26.13 decibels when the speed is Talk and the frequency is 373 ;; 3 2, 靡 - and the frequency is 432 Ηζ will produce 26.7C == amount. In contrast, the fan wheel of the present invention is relatively smaller than the conventional fan 2, which is reduced by 4.6 knives (a reduction of 16.7%); and the maximum voice of Han Shisheng is greatly reduced by 7, ''', ah, the size of the production of 42 decibels C decreased by 27.8%). Drink (four) tone test results. Rotational speed (rpm) maximum noise (this) 3200 3700 21.53 ---- 19.28 The present invention produces the maximum noise rate (Hz) 372 431 201126067 Conventional fan wheel 3200 26.13 373 A 3700 26.70 432 The main technical features of the present invention are: The at least one guiding groove 26 ′ is disposed on at least one surface of the wind surface 2 】 and the leeward surface 22 of the blade 2 and the guiding groove 26 is adjacent to the radial end edge to utilize the guiding groove The slot 26 directs the lateral airflow to flow toward the wind outlet side edge 24. Thereby, the airflow is prevented from overflowing laterally from the steering end edge 25, and the eddy current effect generated between the fan frame 71 and the sea blade 2 is reduced, so that the fan wheel of the present invention can effectively reduce the specificity of the fan device 7 during operation. The maximum volume produced at the frequency and the overall wind noise of the fan. The northern person, the Tian Yuying guide groove 26 is opposite to the windward surface 21 or the moon wind surface 22 of the blade 2, so that the overall volume of the fan wheel of the present invention is reduced, thereby enabling the relative fan wheel S, 9 is more lightweight, in order to reduce the load of the fan operation, hunting to achieve energy saving and reduce the cost of raw materials. Leading, cover; relative to the Xuan Ying wind surface 21 or the leeward side 22 is a concavely set guide 1 / 冓 26 26 and will not add an i ^ ^ 轮 轮 轴 轴 轴 轴 轴 轴 轴 轴 轴 轴 轴 轴 轴The Mt. Valley and the rotating space can be used for the miniaturization of the 7th. /, for the fan, please refer to the 9 and 1 〇 & ^ genus, compared to the first - actual / ^, reveal the second embodiment of the second embodiment of the present invention through the connection of the guide (10) slot 26 Air fine ^ windward side edge 23 and air outlet side edge 24, # this ~ k field is sucked by the windward side edge 23 ^ ^ outside to serve directly between the tea cup 2, part of the gas toward the out The wind side edge 247 is moved by the wind side claw, and the air flow in the guiding groove 26 and the recessed design formed by the groove 26 itself are guided to the radial end edge. The air flow 'sends the lateral airflow along the guiding groove 26 toward the air outlet side, and reduces the lateral airflow from the radial end and the edge 25 to avoid the occurrence of a smooth relationship with the blade 2. Effect, further reduce the overall running noise of the fan. As shown in FIG. 11 , a fan wheel according to a third embodiment of the present invention is disclosed. In comparison with the first embodiment, each of the leeward faces 22 of the third embodiment is provided with a guide groove 114 and an auxiliary device. The guiding groove 26 is disposed between the guiding end edge 25 and the auxiliary guiding groove 26, wherein the guiding shape of the guiding groove 26 is the same as that of the first The guide groove 26' of the towel will not be described in detail herein. In addition, the auxiliary guiding groove % is placed on the side of the auxiliary guiding groove 26, and the slanting direction and contour shape of the auxiliary guiding groove 26 are similar to the guiding groove 26 . In addition, the auxiliary guiding groove 26 has two ends spaced apart from the windward side edge 23 and the air outlet side, and the cymbal 24, but the degree of the guiding groove is greater than the auxiliary The length of the guiding groove is increased, so that the distance between the two ends of the auxiliary groove (26) relative to the windward side edge 23 and the side edge of the wind outlet is greater than the distance between the two ends of the guide (four) groove 26 Wind side • Distance between edges 24 . > In this embodiment, the guiding groove 26 and the auxiliary guiding groove 26 are juxtaposed at the radial end edge 25 of the leeward surface 22, so that the lateral flow along the leeward surface 22 is caused. Part of the airflow can be sequentially received during the lateral flow: the guide groove 26 and the auxiliary guide groove 26 are continuously stopped and guided, and ride toward the airflow 24 to further ensure the lateral airflow. The radial end edge 25 is not continuously laterally overflowed to reduce the occurrence of eddy currents between the fan hubs 盥嗦^ 2 201126067, thereby reducing the maximum wind-cut noise generated by the fan device 7 at a specific frequency and The overall operating noise level. Referring to FIG. 12, a fan wheel according to a fourth embodiment of the present invention is disclosed. Compared with the first embodiment, the flow guiding groove 26 of the fourth embodiment is selectively disposed on the windward surface 21 of the blade 2. The guiding groove 26 is disposed between the windward side edge 23 and the wind outlet side edge 24, and is located radially adjacent to the radial rising edge 25'. The structural shape is substantially the same as that in the first embodiment. The groove 26 is not described in detail herein. The guiding groove 26 of the embodiment is disposed on the windward surface 21, which can still achieve the same effect as the first embodiment of the present invention, and can further reduce the eddy current effect generated between the fan frame 71 and the blade 2, Reduce the overall sound of the fan. In summary, the guiding groove 26 of the present invention is placed on the windward surface 21 or the leeward surface 22 of each of the blades 2, or is disposed on the windward surface 21 and the leeward surface 22, even if only δ is selected, or even changed only. The number of the guide grooves 26 is within the technical scope of the present invention, and is not limited to the many uses of the foregoing embodiments. While the present invention has been described in its preferred embodiments, it is intended that the invention is not intended to limit the invention. The invention is protected by the scope of the invention, and therefore the scope of the invention is defined by the scope of the appended claims. —12 — 201126067 [Simple description of the schema]
弟1圖 第2圖 第3圖 第4圖 第5圖 弟6圖 之剖視圖， 習知扇輪之立體圖。 習知扇輪之使關視及_流_ 另一習知扇輪之立體圖。 “回 本發明第-實施例之扇輪之立體圖。 本發明第-實施例之扇輪之局部放 本發明第—實施例之、。 韦月心乐5圖Μ線 流二圖圖本發明第一實施例氣流沿著葉片 背風面流動之 第8圖：本發明第一實施例之扇輪實際 上之組合剖視及氣體流向示意圖。 ％ ;風扇裝置Brother 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 is a cross-sectional view of a conventional fan wheel. The conventional fan wheel is used to view and _flow_ another stereoscopic view of the fan wheel. "Returned to the perspective view of the fan wheel of the first embodiment of the present invention. The fan wheel of the first embodiment of the present invention is placed in the first embodiment of the present invention. Wei Yue Xinle 5 Figure Μ line flow diagram of the present invention Figure 8 is a flow chart of the flow of the fan along the leeward side of the blade: a schematic view of the actual combination of the fan wheel of the first embodiment of the present invention and a gas flow direction.
第9圖：本發明第二實施例之扇輪之局 第]〇圖：本發明第二實施例之扇輪葉片 線之剖視圖。 部放大圖。 沿第9圖1〇_1〇 第11圖：本發明第三實施例之扇輪之局部放少 第12圖：本發明第四實施例之扇輪之立體固 【主要元件符號說明】 〔本發明〕 1輪轂 11頂蓋部 12環牆部 13轉動幸由 14 容置空間 一 13 一 201126067 2 葉片 21 迎風面 22 背風面 23 迎風側緣 24 出風側緣 25 徑向端緣 26 導引溝槽 26, 輔助導引溝槽 7 風扇裝置 71 扇框 〔習知〕 8 習知扇輪 81 輪穀 811 轉動軸 82 葉片 821 迎風侧緣 822 出風侧緣 823 徑向端緣 9 習知扇輪 91 輪毅 92 葉片· 921 迎風侧緣 922 出風側緣 923 徑向端緣 93 導板Fig. 9 is a view showing a state of a fan wheel according to a second embodiment of the present invention. Fig. 5 is a cross-sectional view showing a fan blade line according to a second embodiment of the present invention. Enlarged picture. 9 图 〇 〇 〇 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 11 Invention] 1 Hub 11 Cover portion 12 Ring wall portion 13 rotates fortunately 14 accommodating space one 13 One 201126067 2 Blade 21 Windward surface 22 Windward side 23 Windward side edge 24 Outlet side edge 25 Radial end edge 26 Guide groove Slot 26, auxiliary guiding groove 7 fan device 71 fan frame [conventional] 8 conventional fan wheel 81 trough 811 rotating shaft 82 blade 821 windward side edge 822 air outlet side edge 823 radial end edge 9 conventional fan wheel 91 wheel Yi 92 blade · 921 windward side edge 922 wind side edge 923 radial end edge 93 guide