九、發明說明： 101年06月19日修正替換本 【發明所屬之技術領域】 本發明係關於一種扇輪，尤其是一種鼓風式風扇之 扇輪。 【先前技街】 請參照第1圖所示，習知鼓風式風扇之扇輪9係具 有—輪穀91 ’該輪殼91之外周壁係形成有數個葉片92， 各该葉片92彼此之間分別具有一夾角（0 )，各該夾角（ 61 )之角度係完全相同。藉此，該扇輪9可裝設於一鼓風 扇框（未繪示）内部，並可藉由一定子（未繪示）以驅動 該扇輪9旋轉作動，以便該扇輪9彳導入外界氣流，並驅 動外界氣流進行散熱作用。 一般而言，由於習知扇輪9之各葉片92彼此之間的 夾角（0 )相同，因此，當該扇輪9之各葉片92驅動外 界氣流進行散熱作用的過程中，則容易產生相同振動頻率 的脅音（Tone )，並經由空氣的傳遞進一步形成單一頻率 的噪音。如第2圖所示之實驗測試圖所示，即可看出習知 扇輪9於單一頻率確實容易產生的高頻尖銳之噪音，故仍 有加以改善之必要。 【發明内容】 本發明係提供一種散熱扇輪，以有效降低该散熱扇 輪所產生之單一頻率噪音的強度，為其主要之發明目的。 為達到前述發明目的，本發明所運用之技術,手段及 藉由該技術手段概物之功效包含有： J377294 - * * ，=- · · -=--^ t — . B. - Λ 一 , —-= _ _ i 丨=-·' _ _ — — _ · , ·1 * - - ^=- = -. -.. . ΙΛ. --- _ - --- Ifc·— =_ _ - _m----- =-_t- — " ~ ^ - " * 101年06月19日修正替換本 · 一種散熱扇輪具有一輪轂，該輪轂之外周璧形成數 : 個葉片，5玄葉片之總數係為η個，n為正整數，任二相鄰 -葉片之間分別具有一夾角（Θ丨、02、θ3、......、θη)， 且由爽角（<9〗）沿該散熱扇輪之逆時針方向或順時針方 -向依序為夾角（θ2)、夾角（θ3)、......、夾角（θη) 4 ’其中夾角（0丨）〈夾角（θ2)〈夾角（θ3) < ...... <夾角（θη)，使各該葉片之夾角依序形成增量角度之設 。十^便各D亥葉片之夾角皆不相同。藉此，當該扇輪驅動 外界氣"IL進行政熱作用的過程中，可較不易產生相同振動 頻率的P呆音，以有效降低該散熱扇輪所產生之單一頻率噪 音的強度。 ' ” 【實施方式】 為讓本發明之上述及其他目的、特徵及優點能更明 顯易懂，下文特舉本發明之較佳實施例，並配合所附圖式 ’作詳細說明如下： ’ 5月广照第3圖所示，本發明散熱扇輪具有一輪轂1〇 ^數個葉20。該輪穀1G主要健設於—鼓風扇框（未 繪不ί内部，以便藉由一定子驅動該輪轂10旋轉作動； 各該葉片20係以輕射狀排列方式徑向連接於該輪穀}〇之 外周面’ ^各該葉片.2Q彼此之間具有不同的夾角， 夾角依序形成增量角度之設計，進而有效降 ==動外界氣流進行散熱作用的過程中，= 紂2Q之角度完全不同，故較不錢生相同振動頻 —· 6 — 1U1 -r υυ /J iy 率的噪音（Tone)。 正替換本 該輪穀H)之_可供組裝如永久磁鐵、封 心軸等構件，以便該輪穀10可裳設於該鼓風扇框内^中 並错由該定子驅動該輪穀10旋轉作動，以便利 ^ 20導入外界氣流’進而可驅動外界氣流進㈣熱作、 各該葉片2G係以輻射狀_於該輪轂10之周、套， 且各該葉片20分別具有—第一端21及一第二端u 中各該葉片2G之第-端21係連接該輪轂1()之外了 :而各該葉片2G之第二端22較佳可同時連接—外環 以便藉由該外環23增加各該葉片2〇之結構強度。、 〃更詳言之’本發明散熱扇輪之主要技術特徵在於： 古設定該葉片之總數係為η個（n為正整數），且 片20之任二相鄰葉片20之間分別具有一夹角㈠^葉 、^、……、心）時’請再參照第3圖所示，由失角2 D沿該散熱扇輪之逆時針方向（A)依序為夾 、夾角（〜)、……、夾角（Θ。，其中夾角（θι}: 夾角（θ2) <夾角（θ3) 夾角（Μ。藉此 ’本發明之各該葉片2G之間除具有不同角度的夾 U3、·..··.、〇外，更可依序設定各該夾角（0] ”、、0η)形成增量角度設計，以便在不至] 於影響本發雜_輪之整體散纽果_件下， 效降低該散熱扇輪所產生之單—醉噪音的Μ。…有 前述段定各該夹角（U2'〜......Γ0η)形成 ，曰 〗01年06月19日修正替換本 增1角度的方式，較佳可採用如下所述之公式： n^\ = 360° :、n係為「葉片總數」，η為正整數，該葉片總數 較佳，為7個〜3Η固；&係為「最小角度之夾角」；Q 係為「夾角增量」，該夾角增量較佳係介於〇.1。〜口。。 此，即可利用上述公式來設定各該爽角㈠】、&、、 ……、θη)形成增量角度。如第4圖所示，假設η==7且 2日守，依據上述公式即可求得夾角（ 二於夹角增量™。，因此，其他夹丄:43夹 心）、夾角（θ4)、夾角（θ5)、夾角⑶6)、夾角 7)可依序推導為 47.43。、49.43。、51.43。、53 43。、 55:、57.43° ’以此類推。藉此，即可按照不同的 片t數」，而藉由上述公式依序設定各該夾角（θ,、 ㊀2 ......、θ η)形成增量角度之設計。 如第5圖所示，本發明之各該葉片2G之間所形 . 0丨、θ2、03、……、D，亦可由夾角 ,沿該散熱扇輪之順時針方向（Β)依序為夾角（θ2)、ι ……、夾角（D’其中夾角（1)〈夾 按照上述公式依序設定各該央角（0,角 成增4角度之設計。藉此，同樣可在不至於影塑 么明散熱扇輪之整體散埶效果的條 、θ 散熱扇輪所產生之單一頻率、4的：’而有效降低該 1377294 Ϊ01年06月19日修正替換本 為證明本發明散熱扇輪確實具有可降低單一頻率噪 曰強度的優點，且亦不至於影響其整體散熱效果。以下係 以本發明散熱扇輪與習用扇輪比較實驗結果說明之。請表 照第6圖所示’係可看出本發明於單一特定頻率（約 2300Hz)所產生的單—頻率噪音強度明顯低於習 所產生之單-解噪音強度，其大致可降低138犯八^ 右丄另外:請參照第7圖所示’更可看出本發明散熱扇輪 :藉由改變各該葉片20之夾角角度設計，以達到可降二 單-頻率》 喿音強度之優點’惟本發明散熱扇輪與習用扇輪 .之驅風量仍大致相同，故並不會影響本發明 ： 體散熱效果。 •獅 如上所述，本發明散熱扇輪確可藉由各該葉片 間具有不同角度的夾角（0〗、^、03、 、 依序設定各該夾角（Θ 1、Θ2、θ3、二、：:)二f 角度設計，使得在驅動外界氣流進行散熱作用的過程;里 各該葉片20彼此之間較不易產生相同振動頻率 T·)，故確可進一步降低所產生之 ：二 ，以有效提升本發明散熱扇輪之產品品質。本曰的強度 雖然本發明已利用上述較佳實施 ^揭示，缺 用=本發明’任何熟習此技藝者在不脫離本發明:二 神和耗圍之内’相對上述實施例進行各種更動血= 本發=護之技嶋’因此本 範圍;： 附之申請專利範圍所界定者為準。 I粑回田硯後 一 9— 1377294 101年06月19日修正替換本 【圖式簡單說明】 第1圖：習知扇輪之俯視圖。 第2圖：習知扇輪所形成之噪音強度的實驗測試圖。 第3圖：本發明散熱扇輪以逆時針方向形成增量角度 設計之俯視圖。 第4圖：本發明散熱扇輪之葉片總數為七個時之俯視 圖。 第5圖：本發明散熱扇輪以順時針方向形成增量角度 設計之俯視圖。 第6圖：本發明散熱扇輪與習知扇輪所形成之噪音強. 度的比較實驗測試圖。 第7圖：本發明散熱扇輪與習知扇輪之驅風量的比較 貫驗測試圖。 【主要元件符號說明】 〔本發明〕 21第一端 23 外環 92 葉片 10 輪毅 20 葉片 22 第二端 〔習知〕 9 扇輪 91 輪轂IX. OBJECT DESCRIPTION OF THE INVENTION: MODIFICATION OF THE EMBODIMENT OF THE INVENTION The present invention relates to a fan wheel, and more particularly to a fan wheel of an air blower fan. [Previous Technical Street] Referring to Fig. 1, a conventional fan-shaped fan wheel 9 has a valley 91'. The outer peripheral wall of the wheel housing 91 is formed with a plurality of blades 92, and the blades 92 are mutually Each has an angle (0), and the angles of the angles (61) are completely the same. Therefore, the fan wheel 9 can be installed inside a drum fan frame (not shown), and can be driven by a certain stator (not shown) to drive the fan wheel 9 to rotate, so that the fan wheel 9 is introduced into the outside world. Airflow and drive outside airflow for heat dissipation. In general, since the angles (0) of the blades 92 of the conventional fan wheel 9 are the same, when the blades 92 of the fan wheel 9 drive the external airflow to dissipate heat, the same vibration is easily generated. The tone of the frequency (Tone), and further through the transmission of air to form a single frequency of noise. As shown in the experimental test chart shown in Fig. 2, it can be seen that the high-frequency sharp noise that the conventional fan wheel 9 is likely to generate at a single frequency is still necessary for improvement. SUMMARY OF THE INVENTION The present invention provides a heat dissipating fan wheel for effectively reducing the intensity of a single frequency noise generated by the heat dissipating fan, which is the primary object of the invention. In order to achieve the foregoing objects, the techniques, means, and effects of the present invention include: J377294 - * * , =- · · -=--^ t — . B. - Λ —-= _ _ i 丨=-·' _ _ — — _ · , ·1 * - - ^=- = -. -.. . ΙΛ. --- _ - --- Ifc·— =_ _ - _m----- =-_t- — " ~ ^ - " * Modified on June 19, 2011. A heat-dissipating fan wheel has a hub, and the circumference of the hub is formed by a number of blades: 5 The total number of blades is η, n is a positive integer, and any two adjacent-blades have an angle between them (Θ丨, 02, θ3, ..., θη), and are refreshed (< 9)) The counterclockwise direction or the clockwise direction of the cooling fan wheel is the angle (θ2), the angle (θ3), ..., the angle (θη) 4 ' with the angle (0丨) <Angle angle (θ2) <angle angle (θ3) < ...... < angle (θη), so that the angle of each of the blades sequentially forms an incremental angle. The angles of each of the D Hai blades are different. Thereby, when the fan wheel drives the external air <IL to perform the political heat action, the P sound of the same vibration frequency is less likely to be generated, so as to effectively reduce the intensity of the single frequency noise generated by the heat dissipation fan wheel. BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more <RTIgt; As shown in Fig. 3 of the monthly photo, the heat-dissipating fan wheel of the present invention has a hub 1 〇 a number of leaves 20. The volute 1G is mainly built on the drum fan frame (not drawn inside, so as to be driven by a certain sub-driver) The wheel 10 is rotated and operated; each of the blades 20 is radially connected to the wheel valley in a light-like arrangement. The circumferential surface of each of the blades 20 has different angles, and the angles are sequentially increased. The design of the angle, and then the effective reduction == the process of dissipating the external airflow for heat dissipation, the angle of 纣2Q is completely different, so the noise of the same vibration frequency is not more than - 6 - 1U1 -r υυ /J iy rate ( To replace the rim of the wheel H), it is possible to assemble components such as a permanent magnet, a sealing shaft, etc., so that the volute 10 can be disposed in the drum fan frame and the wheel is driven by the stator. The valley 10 rotates to facilitate the introduction of the external airflow of the ^ 20 and thus can drive outside The airflow enters (4) a hot work, each of the blades 2G is radiated in a circumference of the hub 10, and each of the blades 20 has a first end 21 and a second end u each of the blades 2G - The end 21 is connected to the hub 1 (): and the second end 22 of each of the blades 2G is preferably simultaneously connected to the outer ring to increase the structural strength of each of the blades 2 by the outer ring 23. More specifically, the main technical feature of the heat-dissipating fan wheel of the present invention is that the total number of the blades is η (n is a positive integer), and any two adjacent blades 20 of the film 20 have an angle between them. (1) ^ leaf, ^, ..., heart) 'Please refer to Figure 3 again, by the angle 2 D along the counterclockwise direction of the cooling fan wheel (A) in order to clip, angle (~),... ..., the angle (Θ., where the angle (θι}: angle (θ2) < angle (θ3) angle (Μ. By this 'the invention of the blade 2G in addition to the different angles of the clip U3, ·.. ···,〇,, can also set the angle (0] ”, 0η) to form the incremental angle design, so as not to affect the overall _ round of the _ round The effect is reduced by the single-drunken noise generated by the cooling fan wheel.... The above-mentioned segment is formed by the angles (U2'~...Γ0η), and the correction is replaced by June 19, 2001. In the manner of increasing the angle, it is preferable to adopt the following formula: n^\ = 360°: n is the "total number of blades", η is a positive integer, and the total number of blades is preferably 7 to 3 tamping ; & is the "angle of the smallest angle"; Q is the "angle increment", the angle increment is preferably between 〇.1. ~ mouth.. This, you can use the above formula to set each cool Angles (a), &,, ..., θη) form an incremental angle. As shown in Fig. 4, assuming η == 7 and 2 days, the angle can be obtained according to the above formula (two in the angle increment TM, therefore, the other clip: 43 sandwich), the angle (θ4), The angle (θ5), the angle (3)6), and the angle 7) can be derived in sequence as 47.43. 49.43. 51.43. 53 43. , 55:, 57.43 ° ‘and so on. Thereby, the design of the incremental angle can be formed by sequentially setting each of the included angles (θ, , 2, ..., θ η) according to the different formulas of the plurality of slices. As shown in Fig. 5, the shape of each of the blades 2G of the present invention, 0 丨, θ2, 03, ..., D, may also be angled, along the clockwise direction (Β) of the heat-dissipating fan wheel. Angle (θ2), ι ......, angle (D' where angle (1) < clip according to the above formula, the central angle is set in sequence (0, the angle is increased by 4 angles. By this, the same can be achieved The shape of the overall dissipation effect of the cooling fan wheel, the single frequency generated by the θ cooling fan wheel, 4: 'effectively reduce the 1377294 06 01 June 19 revised replacement to prove that the cooling fan of the present invention does It has the advantage of reducing the noise intensity of a single frequency, and does not affect its overall heat dissipation effect. The following is a comparison of the experimental results of the heat-dissipating fan wheel and the conventional fan wheel of the present invention. Please refer to Figure 6 for the system. It can be seen that the single-frequency noise intensity produced by the present invention at a single specific frequency (about 2300 Hz) is significantly lower than that of the single-de-noise noise intensity produced by the present invention, which can be reduced by approximately 138. 8: Right: In addition, please refer to Figure 7. Shown 'more can see the cooling fan wheel of the present invention: by changing each The angle of the angle of the film 20 is designed to achieve the advantage of the sound intensity of the two-single-frequency. The heat-dissipating fan wheel and the conventional fan wheel of the invention are still substantially the same, so the invention does not affect the body heat dissipation. Effect: • As mentioned above, the cooling fan wheel of the present invention can be set by the angles of different angles between the blades (0, ^, 03, and sequentially) (Θ 1, Θ 2, θ3, two) , ::) The two-f angle design makes the process of driving the external airflow to dissipate heat; the blades 20 are less likely to generate the same vibration frequency T·), so it is possible to further reduce the generated: The product quality of the heat-dissipating fan wheel of the present invention is effectively improved. Although the present invention has been disclosed by the above preferred embodiment, the present invention is not used in the present invention. Anyone skilled in the art can not deviate from the present invention: Within the above-mentioned embodiments, various types of blood-moving = the present invention = the technical skills of the Guardian's scope; therefore, the scope defined by the scope of the patent application shall prevail. I 粑回田砚后9 - 1377294 101 June 19 Day correction replace this [Figure Brief description of the model: Figure 1: Top view of the conventional fan wheel. Fig. 2: Experimental test chart of the noise intensity formed by the conventional fan wheel. Fig. 3: The cooling fan wheel of the present invention forms an incremental angle in a counterclockwise direction. The top view of the design. Fig. 4: The top view of the total number of blades of the heat-dissipating fan wheel of the present invention is seven. Figure 5: The top view of the heat-dissipating fan wheel of the present invention in the clockwise direction to form an incremental angle design. The comparison between the noise of the cooling fan wheel and the conventional fan wheel is comparative to the experimental test chart. Fig. 7 is a comparison test chart of the air volume of the cooling fan wheel of the present invention and the conventional fan wheel. 】 [Invention] 21 first end 23 outer ring 92 blade 10 wheel 20 blade 22 second end [known] 9 fan wheel 91 wheel