-九、發明說明： -【發明所屬之技術領域】 一種用於散熱風 本發明涉及一種扇葉結構，特別係指 扇之扇葉結構。 ' 曰 【先前技術】 近年來隨著電子產業之發展，電子元件之性能不斷提 升，運算速度越來越快，其㈣W ^運算速度不斷提 =晶片數量不斷增加，晶片卫作時所散發之熱量也相應 增加，如果不將該等熱量及時散發出I，將極大影響電子 凡件之性能’使電子元件之運算速度降低，因此必須對電 子元件進行散熱。 戶父此’通常在電子元件附近安褒-散熱風扇，籍由風 羽羽：、旋轉產生之氣流直接吹向電子元件或安裝於電子元 ，上之散熱器’而對其有效地進行散熱。由於風扇所產生 •乳机之大小=決於風扇之轉速，為使風扇之散熱效率得到 進v之提间，須增大風扇扇葉之旋轉速率。但是，風 轉速提高之同時將會導致風扇所產生之噪音大幅度增加: 而使位於該風扇附近之使用者感到*適，甚至於無法忍 【發明内容】 有#於此，實有必要提供一種可有效降低工立 扇葉結構。 8之 -種扇葉結構’用於安裝於散熱風扇内，其包括 轂及複數結合至輪轂之葉片，該等葉片設置於所述輪轂四 6 1332059 -周且母一葉片兩側形成二肋條。 - 與習知技術相比，本發明扇葉結構每一葉片兩側形成 有一肋條，可在風扇旋轉時產生導流效果，從而減少奮流， 使風扇之噪音得到控制。 【實施方式】 如圖1所示，本發明之扇葉結構ίο用於安裝於一散熱 風扇（圖未示）内，其包括一輪轂20及複數從輪轂2〇四 φ周向外延伸出之葉片3〇。 所述輪轂20包括一圓板22及從圓板22周緣垂直向上 延伸之一環形壁24。所述圓板22中部向上凸起，形成一結 合部26。該結合部26之橫截面積自下而上逐漸減小，從而 形成-圓臺構造。該結合部26之上表面向下凹陷出一圓形 之凹孔（圖未標）’供風扇之轉軸（圖未示）穿設，使扇 葉結構10繞該轉轴旋轉而產生氣流。Nine, invention description: - [Technical field to which the invention pertains] A method for dissipating wind The present invention relates to a blade structure, in particular to a fan blade structure. '曰[Previous technology] In recent years, with the development of the electronics industry, the performance of electronic components has been continuously improved, and the computing speed has become faster and faster. The (4) W ^ computing speed is constantly increasing = the number of wafers is increasing, and the heat emitted by the wafers It also increases accordingly. If the heat is not emitted in time, it will greatly affect the performance of the electronic parts. 'The operation speed of the electronic components is reduced, so the electronic components must be dissipated. The father usually amps the heat-dissipating fan near the electronic component, and the airflow generated by the rotation is directly blown toward the electronic component or the heat sink mounted on the electronic component to effectively dissipate heat. Due to the fan generated • The size of the milk machine = the speed of the fan, in order to increase the heat dissipation efficiency of the fan, the rotation rate of the fan blade must be increased. However, the increase in wind speed will cause a significant increase in the noise generated by the fan: and the user located near the fan feels fit, even unable to bear [invention] There is a need to provide a Can effectively reduce the structure of the blade. 8 - A blade structure is used for mounting in a heat dissipating fan, comprising a hub and a plurality of blades coupled to the hub, the blades being disposed on the hub 4 6332059 - circumference and forming two ribs on both sides of the mother blade. - Compared with the prior art, the blade structure of the present invention forms a rib on each side of the blade, which can induce a flow guiding effect when the fan rotates, thereby reducing the flow of the fan and controlling the noise of the fan. [Embodiment] As shown in FIG. 1, the blade structure of the present invention is used for mounting in a heat dissipation fan (not shown), and includes a hub 20 and a plurality of outer circumferences extending from the hub 2 The blade is 3 inches. The hub 20 includes a circular plate 22 and an annular wall 24 extending vertically upward from the periphery of the circular plate 22. The central portion of the circular plate 22 is convex upward to form a joint portion 26. The cross-sectional area of the joint portion 26 is gradually reduced from the bottom to the top to form a - turntable configuration. A concave hole (not shown) is recessed downwardly from the upper surface of the joint portion 26 for the shaft of the fan (not shown) to rotate around the shaft to generate airflow.
所述葉片30放射狀地結合至輪轂2〇之環形壁24上 ^平衡地分佈於輪轂2〇四周’從而使該扇葉結構忉旋 %不至於產生晃動。每一葉片3〇構造均相同，其包括一 =壁24相連接之第一葉片部32、自第一葉片部Μ 葉片部A及形成於第二扇葉部34相對兩側 ;肋^36,其中所有第二葉片部％均沿同一時針方向 折且該一肋條36遠離輪轂2〇且靠近每一葉片3〇 請一併參閱圖3,所述第一荦片 ，、 末 思莰艾弟一上表面320,與環 7 1332059 表面（圖未標）連接之二第―側面324及一第一下 .其'…二述第一葉片部32之第一上表面320呈凹弧形， :二 延伸方向向上逐漸延伸’所述第-葉片部32 、豕知Γ又面322亦呈凹弧形，其沿葉片30延伸方向向下 ，漸延m使第—葉w 32之高度由内向外逐漸增 由324均為平面且相互平行，其中一第 一側面324a之長声女你艾 綠 , 又大於另一弟一側面324b之長度，使扇 相對於輪轂2G之環形壁24形成-斜度（如圖2所 不。所述第二葉片部34具有一與第一葉片部％之第一 上表面320連接之第-卜本& 咬使々弟一上表面34〇，與第一葉片部％之第 一下表面322連接之第二下表面342，及分別連接第一葉片 _\32 一第侧φ 324之二第二側面344。請參閱圖2，該 二第二側© 344均為同心之弧面，且均與相應之第一側面 324相切，其中-第二側面3他為—凸面，另一第二側面 344a為一凹面。所述另一第二側面34如之弧度小於所述第 二側面344b之弧度·，該另—第二侧面進與長度較長之 第一側面324a相連接而共同形成葉片3〇之迎風面，誃 二側面難與長度較短之第—側面遍相連接而共同形 成葉片30之背風面。該二第二側面344籍由一弧形之表面 (圖未標）相互連接，以降低葉片3〇旋轉時之所遭受之風 阻。再如圖3所示，所述第二下表面342共面且平行於輪 轂20之圓板22’所述第二上表面34〇亦相互共面且平行於 第二下表面34乃以使所述第二葉片部34沿葉片3〇延伸方 向之高度恒定。所述二肋條36均呈矩形，且相對設置於第 8 二葉片部34二第二側面344之中部區域，盆中每 均從第二葉片部34第二下夺$ 一' 肋條36 - 乐下表面342沿第二葉片部34 度方向延伸至第二葉片部34之第二上表面34〇。 ^ 可以理解地，所述肋條36不僅限於矩形，還可以為弧 形、稜形料他幾何形狀’以滿足不同之需求。 ^ f>|3G均具有二肋條3師成於其 所產夕吝治、隹 較好之導〜效果，從而減少風扇 斤產生之紊、"IL ’進而達到降低風扇噪音之目之。 提出’本發明確已符合發明專利之要件，遂依法 利申^惟，以上料者僅為本發日狀較佳實施例， 不月b以此限制本宰之申★主直制^r岡 f 專利U °舉凡熟悉本案技藝 <人士板依本發明之精神所作 1 ^ L'i ΠΓ ^ ^ ^ 月砰所作之荨效修飾或變化，皆應涵 盍於以下申晴專利範圍内。 【圖式簡單說明】 圖1係本發明扇葉結構之立體圖。 圖2係圖1之俯視圖。 圖3係圖1之側視圖。 【主要元件符號說明】 10 22 26 32 322 輪穀 環形壁 葉片 第一上表面 第一側面 20 24 30 320 324, 324a>324b 扇葉結構 圓板 結合部 第—葉片部 第—下表面 9 1332059 第二葉片部 34 第二上表面 340 第二下表面 342 第二側面 344 344& 344b 肋條 36The blades 30 are radially coupled to the annular wall 24 of the hub 2 and are distributed circumferentially around the hub 2 so that the blade structure does not sway. Each blade has the same structure, and includes a first blade portion 32 to which the wall 24 is connected, a blade portion A from the first blade portion, and opposite sides of the second blade portion 34; the ribs 36, Wherein all of the second blade portions are folded in the same hour hand direction and the ribs 36 are away from the hub 2 and close to each of the blades 3, please refer to FIG. 3, the first piece, the last thought, Ai Diyi The upper surface 320 is connected to the surface of the ring 7 1332059 (not shown) and the first side 324 and the first lower surface. The first upper surface 320 of the first blade portion 32 is concavely curved. The extending direction is gradually extended upwards. The first blade portion 32 and the first surface 322 are also concavely curved, and are extended downward along the extending direction of the blade 30. The length m is such that the height of the first leaf w 32 gradually increases from the inside to the outside. The increase 324 is plane and parallel to each other, wherein the long side of the first side 324a is longer than the length 324b of the other side, so that the fan forms a slope with respect to the annular wall 24 of the hub 2G ( As shown in Fig. 2, the second blade portion 34 has a first-bench & connected to the first upper surface 320 of the first blade portion %. The upper surface 34〇, the second lower surface 342 connected to the first lower surface 322 of the first blade portion%, and the second second side surface 344 of the first blade _ 322 and the first side φ 324 are respectively connected. Referring to FIG. 2, the two second sides © 344 are concentric arcs and are tangential to the corresponding first side 324, wherein the second side 3 is a convex surface and the other second side 344a is a a concave surface. The other second side surface 34 has a curvature smaller than that of the second side surface 344b. The other second side surface is connected to the longer length first side surface 324a to form a windward direction of the blade 3 The second side surface 344 is connected to each other to form a leeward side of the blade 30. The second side surface 344 is connected to each other by an arc-shaped surface (not shown) to reduce the blade. 3〇 wind resistance suffered by rotation. As shown in FIG. 3, the second lower surface 342 is coplanar and parallel to the circular plate 22' of the hub 20, and the second upper surface 34〇 is also coplanar and parallel to each other. The second lower surface 34 is such that the height of the second blade portion 34 in the direction in which the blade 3 is extended is constant. The two ribs 36 are all rectangular, and are disposed opposite to the middle portion of the second second side surface 344 of the eighth and second blade portions 34. Each of the basins is secondly robbed from the second blade portion 34 by a rib 36. The surface 342 extends in the 34th direction of the second blade portion to the second upper surface 34 of the second blade portion 34. ^ It is understood that the rib 36 is not limited to a rectangle, but may also be curved, prismatic, and his geometry. 'To meet different needs. ^ f>|3G have two ribs 3 divisions in their production of 吝 吝 隹, 隹 better guide ~ effect, thereby reducing the fan spurs, "IL' and then reduce The purpose of fan noise. It is proposed that the present invention has indeed met the requirements of the invention patent, and that the above materials are only preferred embodiments of the present invention, and that the monthly limit is not limited by this. f Patent U ° Anyone who is familiar with the skill of the case <People's board in accordance with the spirit of the invention made by 1 ^ L'i ΠΓ ^ ^ ^ 砰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 修饰 。 。 。 。 。 。 。 。 BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view of a blade structure of the present invention. Figure 2 is a plan view of Figure 1. Figure 3 is a side view of Figure 1. [Main component symbol description] 10 22 26 32 322 Valley annular wall blade first upper surface first side 20 24 30 320 324, 324a> 324b Fan blade structure disk joint portion - blade portion first - lower surface 9 1332059 Two blade portions 34 second upper surface 340 second lower surface 342 second side 344 344 & 344b rib 36