200839100 九、發明說明： 【發明所屬之技術領域】 特別是關於一種 本發明係關於一種風扇及其葉輪 能夠提高性能的風扇及其葉輪。 【先前技術】， 風扇之工作效能，乃以風扇能 沪护.π ^ ^領此產生的風壓及風量為200839100 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a fan and an impeller thereof capable of improving performance of a fan and an impeller thereof. [Prior Art], the working efficiency of the fan is based on the wind pressure and air volume generated by the fan.
高風扇的轉速是方法之一。缺而叙角度或是提 …、肉在緹向風扇轉i亲式早 改變扇葉的安裝角度之後"喿音卻隨之增加。/ 第-圖為習知之風扇的剖面圖。習知之風扇！包 1 一扇框10’一馬達11及一葉輪12。扇框10包括 一冗又體103、一底座104以及至少一肋彳欠 1Λ, ^ ^肋條1〇5連接殼體 與底座104。扇框10具有一入風口 ι〇ι及一出風 口 1〇2’底座104係設置於出風口處1〇2，殼體ι〇3於 入風口處101及出風口處i 02分別具有第_導角i⑽及 第二導角109’第一導角108及第二導角1〇9為一斜面 設計，以輔助氣流導入及導出。 葉輪12包括一輪轂121及複數個扇葉122環設於 輪轂121之周緣，然而，由於扇框丨〇内部的空間不足， 因此，輪轂121在設計上為垂直的設計。當氣流由入風 口 101導入後，由於輪轂121為垂直結構，因此，氣流 直接經由第二導角1〇9由出風口處102導出，亦即氣流 加壓的效果並不顯著，如此一來，習知之風扇1在特性 上無法有良好的表現。 5 200839100 因此’如何提供-種風扇及其扇框 之風壓及風量，進而择 /、了扣回風扇 謀顯之一。 曰進風扇之工作效能’實為重要的 【發明内容】 上述課題’本發明的目的是在提供一種葉 輪八可增加風扇的風壓及風量。 一 本發明的另一目θ /α 的疋提供一種風扇，苴笋由# 於輪轂之導流結構，使产^ ，、猎由叹置 古風戶運縮小以擠壓氣流，並進而提 问風扇之風量及風壓。 风 基於上述或其.他目的，本發明 括—於砉;l_ 提出種葉輪，包 輻叙及稷數個扇茱，輪轂 複數個扇葉係環設於輪轂之㈣/曲开/表面，而 , 周緣。輪轂之頂面外徑與底 面外徑的比例小於〇.45。輪章 - 夕+ ^人 铷軚之曲形表面與頂面的切線 ^ ^ ^ ^ 之間。輪毅之曲形表面與底 面之夾角係介於30度至75声夕pq 1 ' . 又之間。曲形表面為一連續 門呈* +么 表面之-端點間之連線水平線之 間具有一夾角，夾角係小於70度。 基於上述或其他目的，本 七& $ i J 明另提出一種風扇， U::葉輪及—馬達’葉輪係容置於扇框内， ^置於葉輪内並藉由馬達驅動，葉輪具有一輪穀 葉環設於輪穀之周緣，輪轂具有—導流結構 -置於/、周緣外側且具有至少一曲形表面。其中導流社 構係與輪轂是一體成型之社構 ' 、，口構其中扇框更包括一連接 200839100 件^於扇框與底座之間。連接件與底座及扇框為 一肢成形之結構。連接件包括複數個肋條或靜葉。 承上所述，本發明利用設置於輪fe之導流結構，使 風扇的流道縮小以使氣流產生擠壓，因此，可使氣流的 流速改變。與習知技術相較’本發明可增加氣流的流 速’進而提尚風扇的風量及風，如此一來，可改盖風扇 的性能表現。。 "+ 【實施方式】The high fan speed is one of the methods. The lack of a narrative angle or mentioning ..., the meat in the turn to the fan to turn the i-early change the angle of the installation of the blade after the " voices increase. / Figure - is a cross-sectional view of a conventional fan. The fan of the know! The package 1 has a frame 10' of a motor 11 and an impeller 12. The frame 10 includes a redundant body 103, a base 104, and at least one rib 彳1Λ, ^^ ribs 〇5 connecting the housing and the base 104. The fan frame 10 has an air inlet ι〇ι and an air outlet 1〇2'. The base 104 is disposed at the air outlet 1〇2, and the housing ι3 has a __ at the air inlet 101 and the air outlet respectively. The lead angle i (10) and the second lead angle 109' of the first lead angle 108 and the second lead angle 1 〇 9 are a beveled surface to assist in airflow introduction and derivation. The impeller 12 includes a hub 121 and a plurality of blades 122 disposed around the circumference of the hub 121. However, since the space inside the frame is insufficient, the hub 121 is designed to be vertical. After the airflow is introduced from the air inlet 101, since the hub 121 has a vertical structure, the airflow is directly led out from the air outlet 102 via the second lead angle 1〇9, that is, the airflow pressurization effect is not significant, and thus, The conventional fan 1 does not perform well in terms of characteristics. 5 200839100 Therefore, 'how to provide the wind pressure and air volume of the fan and its fan frame, and then choose one, and buckle back the fan. The present invention is directed to the provision of a vane eight to increase the wind pressure and the air volume of the fan. Another object of the invention, θ /α, provides a fan, and the bamboo shoots are guided by the guide structure of the wheel hub, so that the production is reduced by the sigh of the ancient winds to squeeze the airflow, and then the fan air volume is asked. And wind pressure. The wind is based on the above or its purpose, the invention includes - 砉; l_ proposes an impeller, a spoke and a number of fan shackles, and a plurality of fan blade rings of the hub are arranged on the (four) / curved/surface of the hub, and , Zhou. The ratio of the outer diameter of the top surface of the hub to the outer diameter of the bottom surface is less than 〇.45. Wheel chapter - 夕+^人 铷軚 The curved surface is tangent to the top tangent ^ ^ ^ ^. The angle between the curved surface and the bottom of the wheel is between 30 degrees and 75 degrees pm pq 1 '. The curved surface is a continuous door with a + + surface between the surface and the end point of the line between the horizontal lines with an angle of less than 70 degrees. Based on the above or other purposes, this seventh & $ i J also proposes a fan, U:: impeller and - motor 'impeller system is placed in the fan frame, ^ placed in the impeller and driven by the motor, the impeller has a round The valley ring is disposed on the periphery of the wheel valley, and the hub has a flow guiding structure-placed on the outer side of the circumference and has at least one curved surface. Among them, the diversion mechanism and the hub are a one-piece structure, and the frame of the mouth includes a connection of 200839100 pieces between the fan frame and the base. The connecting member and the base and the frame are formed into a limb. The connector includes a plurality of ribs or vanes. As described above, the present invention utilizes the flow guiding structure provided on the wheel fe to reduce the flow path of the fan to cause the air flow to be squeezed, thereby changing the flow rate of the air flow. Compared with the prior art, the present invention can increase the flow rate of the airflow and thereby increase the air volume and wind of the fan, so that the performance of the fan can be changed. . "+ [Implementation]
以下將參照相關圖式，說明依本發明較佳實施例之 一種風扇及其葉輪，其中相同的元件將以相同的參照符 號加以說明。 第二圖是本發明之一較佳實施例之風扇的剖視 圖。請參閱第二圖，風扇2較佳地為一軸流式風扇， 其包括一扇框20、一葉輪30以及一馬達40。葉輪30 及馬達40係容置於扇框2〇内，扇框2〇包括一具有 參 貫通孔之殼體20 1，框體係大致呈方形、圓形、 擴圓形或菱形。另外，扇框2〇包括一底座2〇2及 至 >、連接件204 ’底座202較佳地設置於風扇之 出風口處22，連接件2〇4係設置於殼體2〇1與 底座202之間，用以支撐底座202。在本實施例中， 連接件204可為複數個肋條（rib)或靜葉（stati〇nary blade)，並與底座2〇2及殼體201 —體成型製成。另 外’葉輪30包括有一輪轂301及複數個扇葉302環設 於輪轂301之周緣，馬達40係設置於輪轂301内部， 200839100 :葉輪30係位於扇框之底座2〇2上，葉輪％係藉 由馬達40驅動得以旋轉。 值付/主思的是’為了提高風扇之風壓及風量，本發 明之葉輪30具有導流結構則設置於葉輪之輪穀训 的周緣外側’並且與輪轂3Q1 —體成㈣成。在本實施 例中，葉輪的輪轂301具有一頂面311及一底面Η]， t輪轂的外徑係自頂面朝底面遞增，葉輪之扇葉3 〇 2係 環設於導流結構3G3的周緣，導流結構3Q3具有至少一 曲七表面’曲形表面為—連續或非連續的曲線。當然， 也可以是輪轂3 0 i具有一曲形表面，而導流結構如係 =置於輪301之周緣外側。由於本發明之葉輪的設 δ十’當氣流經由入風口處21流經導流結構303時，氣 流會因流道縮減而產生擠壓，因Λ，氣流的流速會加 快’同時也使壓力提高。 一承上述，本發明之葉輪的設計如下所述，請參閱第 圖輪轂之頂面3 11的外徑D1與輪轂之底面3丨2的 外控D2 6勺比例係小於0.45,輪穀之頂面311㈣徑D1 與扇框一20之内徑D3的比例係小於〇35。另外，輪穀 令门度Η1與扇框2〇的高度H3之間的比例係大於 =6導机結構3〇3與頂面311的切線央角^係介於〇 :至45度之間，導流結構303與底面312的夾角θ2係 ”於3〇度至75度之間。導流結構303之曲面，其二端 點間連成直線時’直線與水平線夹角们係小於7〇度。 田馬達40運轉並帶動葉輪3〇轉動時，、經由設置於 200839100DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a fan and an impeller thereof according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein the same elements will be described with the same reference numerals. The second drawing is a cross-sectional view of a fan in accordance with a preferred embodiment of the present invention. Referring to the second figure, the fan 2 is preferably an axial fan including a frame 20, an impeller 30 and a motor 40. The impeller 30 and the motor 40 are housed in the frame 2, and the frame 2 includes a housing 20 having a through-hole. The frame system has a substantially square, circular, expanded or diamond shape. In addition, the fan frame 2〇 includes a base 2〇2 and to>, the connecting member 204′′ base 202 is preferably disposed at the air outlet 22 of the fan, and the connecting member 2〇4 is disposed on the housing 2〇1 and the base 202. Between, to support the base 202. In this embodiment, the connecting member 204 can be a plurality of ribs or a stella〇nary blade, and is integrally formed with the base 2〇2 and the housing 201. In addition, the impeller 30 includes a hub 301 and a plurality of blades 302 disposed around the circumference of the hub 301. The motor 40 is disposed inside the hub 301. The spring 3030 is located on the base 2〇2 of the fan frame. It is driven to rotate by the motor 40. The value paid/introspection is that in order to increase the wind pressure and the air volume of the fan, the impeller 30 of the present invention has a flow guiding structure and is disposed outside the circumference of the wheel train of the impeller and is formed integrally with the hub 3Q1. In this embodiment, the hub 301 of the impeller has a top surface 311 and a bottom surface ,], and the outer diameter of the t hub is increased from the top surface toward the bottom surface, and the blade 3 〇 2 of the impeller is disposed on the flow guiding structure 3G3. At the periphery, the flow guiding structure 3Q3 has at least one curved surface which is a continuous or discontinuous curve. Of course, it is also possible that the hub 300 has a curved surface, and the flow guiding structure is placed outside the circumference of the wheel 301. Since the impeller of the present invention is arranged to pass through the flow guiding structure 303 through the air inlet 21, the air flow is squeezed due to the reduction of the flow path, because the flow velocity of the air flow is accelerated, and the pressure is also increased. . In view of the above, the design of the impeller of the present invention is as follows. Please refer to the outer diameter D1 of the top surface 3 11 of the wheel hub and the external control D2 6 scoop of the bottom surface of the hub to be less than 0.45, the top of the trough The ratio of the surface 311 (four) diameter D1 to the inner diameter D3 of the fan frame 20 is less than 〇35. In addition, the ratio between the valley and the height H3 of the fan frame 2〇 is greater than ==6, and the central angle of the tangent line of the top surface 311 is between 〇: and 45 degrees. The angle θ2 between the flow guiding structure 303 and the bottom surface 312 is "between 3 and 75 degrees. The curved surface of the flow guiding structure 303, when the two ends are connected in a straight line, the angle between the straight line and the horizontal line is less than 7 degrees. When the motor 40 is running and the impeller is rotated 3 turns, it is set at 200839100.
輪毅3(Π上扇葉3〇2的運作，使風扇2與外界產生壓力 差’因此’氣流由人風σ21進人並藉由導角導引進入 扇框内，並往出風口 2 2方向流動。由於本發明之導流 結㈣的表面為連續地設置’且是具有曲面的言"， 因此，當氣流流經導流結構303時，由於流道的缩減， 會造成氣流產生擠壓並使氣流流速加快，同 流壓力提升。。 UWheel Yi 3 (the operation of the fan blade 3〇2 causes the fan 2 to have a pressure difference with the outside world. Therefore, the airflow enters the human wind σ21 and is guided into the fan frame by the guide angle, and goes to the air outlet 2 2 Directional flow. Since the surface of the flow guiding knot (4) of the present invention is continuously disposed 'and has a curved surface', when the airflow flows through the flow guiding structure 303, the airflow is generated due to the reduction of the flow path. Squeeze and increase the flow rate of the airflow, and the co-flow pressure is increased. U
第三圖為習知風扇與本發明風扇的風壓盥風 :特性比較圖，由實驗數據可知，本發明之風扇能 有效地提高風量及風壓，在相同風量下，本發明之風扇 相較於與習知之風扇，其最大風壓大約提高Μ倍，在 相同風壓下，最大風量大約提高1·15倍。 綜上所述，本發明之風扇具有下列優點：The third figure is a comparison diagram of the wind pressure hurricane of the conventional fan and the fan of the present invention: the experimental data shows that the fan of the present invention can effectively increase the air volume and the wind pressure, and the fan of the present invention is compared under the same air volume. For the fan with the conventional one, the maximum wind pressure is increased by about Μ times, and under the same wind pressure, the maximum air volume is increased by about 1.15 times. In summary, the fan of the present invention has the following advantages:
本發明洲設置於輪穀之導流結構，使風扇的流道 縮小以使氣流產生㈣，因此，可使氣流的流速改變。 與習知技術相較’本發明可增加氣流的流速，進而提高 風扇的風量及風壓，如此一來，可改善風扇的性能表現二 雖然本發明已以較佳實施例揭露如上，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 明之精神和範圍内，當可作些許《更動與潤飾，因二 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。 【圖式簡單說明】 9 200839100 第一圖為一種習知之風 乳扇的剖面圖； 第二圖為依據本發明較佳實施例’_ 面圖， ·以及 〜種風扇的剖 弟二圖為本發明風扇及習知風扇之周旦 %里興風壓的 關係曲線比較圖。 【元件標號說明】 1、2 風扇 121 、301 輪轂 10、20 扇框 122 、302 扇葉 11、40 馬達 204 連接件 12 > 30 葉輪 303 導流結構 101、21 入風口 311 頂面 102 > 22 出風口 312 底面 103 、 201 殼體 D1、 D2 外徑 104 、 202 底座 D3 内徑 105 肋條 H1、 H3 108 第一導角 Θ1、 Θ2 切線夾角 109 第二導角 Θ3 水平線夾角The present invention is arranged in the diversion structure of the trough, so that the flow path of the fan is reduced to cause the air flow to be generated (4), and therefore, the flow rate of the air flow can be changed. Compared with the prior art, the present invention can increase the flow rate of the airflow, thereby increasing the air volume and the wind pressure of the fan, so that the performance of the fan can be improved. Although the present invention has been disclosed above in the preferred embodiment, it is not To clarify the invention, any person skilled in the art can make a few changes and refinements without departing from the spirit and scope of the invention, as the scope of the invention is defined by the scope of the patent application. Prevail. [Simplified description of the drawings] 9 200839100 The first figure is a cross-sectional view of a conventional wind fan; the second figure is a schematic view of a preferred embodiment of the present invention, and a fan of the fan A comparison chart of the relationship between the fan of the invention and the conventional fan of the wind speed of the wind. [Description of component numbers] 1, 2 fan 121, 301 hub 10, 20 fan frame 122, 302 blade 11, 40 motor 204 connector 12 > 30 impeller 303 flow guiding structure 101, 21 air inlet 311 top surface 102 > 22 Air outlet 312 bottom surface 103, 201 Housing D1, D2 Outer diameter 104, 202 Base D3 Inner diameter 105 Rib H1, H3 108 First lead angle Θ1, Θ2 Tangent angle 109 Second lead angle Θ3 Horizontal line angle
1010