M429127 五、新型說明： 【新型所屬之技術領域】 本創作是有關於-種構成用於排放在 部件上產生的熱的散熱襄置的冷卻風扇。 的 【先前技術】 設在電腦本體内部的各種部件中，例如中央處理哭 cent却ocessing unit)或熱電元件視訊圖轉列卜^ graphic array)卡、功率營望银 熱裝置二外的部位必須設置熱沉一 在3分情況下，為了更積極執㈣過上_ "匕的…、處理，在熱沉上設置冷 … 述冷卻風扇將冷卻空氣送到敎‘：lng :)。上 的熱的發散。 ②心有糾導來自熱沉 的冷二風扇產生的冷卻空氣中到達熱沉 對熱沉的〜〇戶有希望獲得越高的冷卻效果。這意味著 素^一。》“的結構是決定熱沉的冷卻效率的重要因 ΠήιΜ 4f 乂月〗的冷卻風扇的結構是在中心部具有輪|η· 冷卻風結構上，在該冷卻風扇旋轉的過程中，在 的空氣：流^ ί杈方向的外側端部發生該旋轉半徑方向 '机，從而存在使葉片的外側端部發生噪音的問 3 M429127 通。即、在該冷卻風扇的旋轉半徑万向的外側端部，由於 該冷卻風扇的旋轉產生的離心力，而產生引發該冷卻風扇 的震動的空氣流動。並且，冷卻風扇通常具有朝該旋轉方 向相互隔開而佈置的多個葉片。然而，在該冷卻風扇的旋 轉方向上各葉片的後端部，形成如圖1所示的回旋渦流， 從而存在降低風量並增加噪音的問題。 【新型内容】 本創作的目的在於解決如上所述的問題，提供一種改 變葉片的結構而抑制在葉片端部發生的震動，並最大限度 地減少流失的風量，操作時安靜並提高冷卻性能的冷卻風 扇。 技術方案 為了實現上述目的，根據本新型的一實施例的冷卻風 扇，其包括：設在中央部的輪轂；從上述輪轂放射狀地延 伸而成，並且在該輪轂的旋轉方向上相互隔開而佈置的多 個葉片部’其特徵在於，包括： 設在上述輪轂的旋轉半徑方向上的上述多個葉片部 的外侧端部，並且從該葉面突出而成的第一辅助葉片； 佈置在上述輪轂與上述第一輔助葉片之間，並從上述 多個葉片部的葉面突出而成的第二辅助葉片。 上述第二輔助葉片較佳為設有多個。 上述第一辅助葉片或上述第二辅助葉片較佳為相對 於上述多個葉片部的葉面錢直方向突出而成，並且沿著 上述多個葉片部的旋轉方向延伸。 4 M429127 ♦上述第二輔助葉片較佳為佈置在上述多個 旋轉方向上的該葉片部的後端部。 葉片。P的 【技術效果】 ° 根據本新型的冷卻風扇，設在各葉片部 片以及第二辅助葉片改善在該葉片部端部發生^輔助葉 動，從而提供了減少震動，並在旋轉運行時安靜=的流 且提高冷卻性_效果。 $仃彳场地運行， 【實施方式】 施例 了面’參照附圖進一步詳細說明根據本新型的—個實 圖 相反方向上看圖2中圖示的冷卻風扇的圖 圖3的 2中圖示的冷卻風扇的空氣的流動的圖。Θ疋不出圖 至圖5 ’根據本新型較佳實施例 10设在電細内部，從而構成排出在該電腦的部件 : 熱的裝置。通常，上述冷卻風扇！。與熱交牛的 結合，從时揮促進在該熱交換機上的熱交換圖不） 上述冷卻風扇1〇包括輪穀2〇與葉片部扣 b 上述輪穀20可旋轉地設在框架Μ卜 、 與馬達（未圖示）的旋轉軸結合，從而 -體地旋轉。上述輪穀20佈置在上述框;:軸 上述輪轂20設在根據本新型的冷卻風屬中、。。 述輪轂2〇具有與馬達的旋轉轴相結合的結構:二； 5 坩，“127 以月ί的冷卻風扇大同小異，因此省略詳細敍述。 上述葉片部30具有多個。上述葉片部3〇從上述輪毅 =放射狀地延神而成。上述葉片部3G在上述輪穀2〇的旋 相互隔開而佈置著。上述葉片料的基本結構盘 以則的冷卻風扇大同小異。 、 輔助Sim特卿結構是設在上述葉卩部3G的第一 稍助葉片34與第二辅助葉片36。 土述第—_葉片34設在上 向上所述葉片部30的外側端部。二:仏方 上述荦述第一輔助葉片34從 -輔Si 4 =面32突出而成。在本實施例中上述第 並上述葉面32成垂直方向突出而成， -是為了 向延伸。上述第—辅助葉片 部上發生的渴流所片部3〇的旋轉方向上外侧端 置。即、上述第—辅助在j二片部30的震動而設 旋轉時在該葉Μ 用於切斷在上述葉片部30 而使空氣“部3^，端部，的空氣’由於離心力 氣沿著該葉以卩扣―，轉半徑方向排出，從而發揮空 自然排出的作用。葉而經過該葉片部30的後端部 輔助％佈置在上述輪敎2G與上述第一 的葉面32突出:/述第二輔助葉片36從上述葉片部30 朝上述葉片部3〇 本實施例中上述第二辅助葉片36 設有多個。上述第t向延伸。上述第二輔助葉片％ 〜輔助葉片36在上述葉片部3〇的旋轉 Έ429127 半後方向上相互隔開而佈置。 上述第二輔助葉片36佈置在上述各葉 的旋轉 万向上該葉片部30的後端部。即、參 =述第二辅助葉片36的佈置。圖5中^==忒 ^ 30旋轉時空氣的流動。即、上述⑼部3㈣旋轉方 照與圖5中圖示的魏相反的方向旋轉。隨之，上述 ^=二佈置在上述葉片部3〇的旋轉方向側面上 茱片部30的後端部。 下面’根據該冷卻風扇10運行的讲 敎述如上構成的本實施綱冷卻風扇ω1明並詳細 首先，在理解圖2至圖4中圖示的附国 的前提下，展開下-倾明。，圖鱗細的結構 旋轉由達(未圖示)的輪出軸-體地 ^因此該馬達起動上述輪穀2〇而旋轉 疋，、上述葉片部30 —體形成的結構，因 /L -又 的旋轉使上述葉片部3〇也進行旋轉。忿 沿著f 片部3㈣近的空氣 的旋片部3〇而流動的空氣，由於該葉片部3〇 :的旋轉方向離上;=^^ 此過程中上M 外側端部的施力。然而，在 方向突^ : 相對於上述葉面32成垂直 出而成。並且，上述第一輔助葉片34沿著上述葉面 7 M429127 _ „片部30 _轉方向延伸 =，上述第-辅助葉片34為了切斷沿著上‘==所 f片部30的外側端部移動的空氣 成朝該 此’上述第-輔助葉片34阻礙由於在葉片部 。因 氣的離心力而發生的空氣的流動，因此抑制由於二離的J =空氣流動所導致的震動。因此，提供用 於上述葉片部30外側端部的震動而發生的噪音的效果由 另方面，石著上述葉面32而流動的空氣朝上述整 片部=峨轉方向流動。沿著上述葉面32而流動的$ 經過該葉面32的後端部和與該葉面32鄰接的另一葉面之 間而流動，以形成回旋渦流。在此過程中，上述第二輔助 葉片自然地轉變沿著上述葉面％朝上述葉片部％的旋轉 方向流動的空氣為直線流動，從而抑制回旋渦流的形成。 這在圖5中已進行了圖示，比較圖5與圖1，就能夠簡易 地理解上述第二輔助葉片36的作用。 如上根據本新型的冷卻風扇1〇’藉由設在各葉片部 30的第一辅助葉片34以及第二輔助葉片36以改善在該葉 片部30的端部發生的空氣的流動，而減少震動，因此提供 在旋轉運行時安靜且提高冷卻性能的效果。 以上’藉由較佳實施例詳細說明了本新型，但本新型 並不限於上述實施例，具有本技術領域通常知識的人可在 本新型的技術思想範圍内進行多種多樣的變形，這是理所 當然的。 【圖式簡單說明】 M429127 圖1是用於說明先前的冷卻風扇的問題的圖。 圖2是根據本新型的一實施例的冷卻風扇的斜視圖。 圖3是圖2中圖示的冷卻風扇的平面圖。 圖4是在圖3的相反方向上看圖2中圖示的冷卻風扇 的圖。 圖5是示出圖2中圖示的冷卻風扇的空氣的流動的 【主要元件符號說明】 10 冷卻風扇 15 框架 20 輪毂 30 葉片部 32 葉面 34 第一輔助葉片 36 第二輔助葉片 9M429127 V. New description: [New technical field] This creation is about a cooling fan that constitutes a heat dissipation device for discharging heat generated on a component. [Prior Art] In the various components inside the computer body, such as the central processing crying but the odding unit or the thermoelectric component video map transfer ^ graphic array) card, the power camping silver thermal device two parts must be set In the case of 3 points, in order to be more active (4), _ "匕..., processing, setting cold on the heat sink... The cooling fan sends cooling air to 敎':lng :). The heat on the divergence. 2 Hearts have been tempered to reach the heat sink from the cooling air generated by the cold two fans of the heat sink. The Seto~ Seto has the hope of obtaining a higher cooling effect. This means that it is one. "The structure is an important factor in determining the cooling efficiency of the heat sink. Πή Μ 4f 乂 〗 The structure of the cooling fan is on the center with a wheel | η · cooling air structure, during the rotation of the cooling fan, the air : In the outer end portion of the flow direction, the radius of rotation direction is generated, and there is a problem that noise is generated at the outer end portion of the blade. That is, at the outer end portion of the rotating radius of the cooling fan. Due to the centrifugal force generated by the rotation of the cooling fan, air flow causing the vibration of the cooling fan is generated. And, the cooling fan usually has a plurality of blades arranged to be spaced apart from each other in the rotational direction. However, the rotation of the cooling fan The rear end portion of each blade in the direction forms a swirling vortex as shown in Fig. 1, so that there is a problem of reducing the air volume and increasing the noise. [New content] The purpose of the present invention is to solve the above problems and provide a vane changing method. The structure suppresses the vibration occurring at the end of the blade and minimizes the amount of air lost, quiets during operation and improves cooling performance In order to achieve the above object, a cooling fan according to an embodiment of the present invention includes: a hub provided at a central portion; radially extending from the hub, and mutually rotating in a rotational direction of the hub a plurality of blade portions arranged to be spaced apart, comprising: an outer end portion of the plurality of blade portions provided in a direction of a radius of rotation of the hub, and a first auxiliary blade projecting from the blade surface; a second auxiliary blade that is disposed between the hub and the first auxiliary blade and protrudes from a blade surface of the plurality of blade portions. The second auxiliary blade is preferably provided in plurality. The first auxiliary blade is provided. Or the second auxiliary blade is preferably protruded in a straight direction with respect to the leaf surface of the plurality of blade portions, and extends along a rotation direction of the plurality of blade portions. 4 M429127 ♦ The second auxiliary blade is preferably a rear end portion of the blade portion disposed in the plurality of rotation directions. [Technical effect] of the blade P. ° According to the cooling fan of the present invention, each blade is provided The partial piece and the second auxiliary blade improve the auxiliary blade motion at the end of the blade portion, thereby providing a vibration reduction and quietness flow during the rotation operation and improving the cooling performance. MODES FOR CARRYING OUT THE INVENTION The flow of air of the cooling fan illustrated in Fig. 2 of Fig. 3 of the cooling fan illustrated in Fig. 2 is viewed in the opposite direction of the present invention in the opposite direction of the present invention. Figure 5 is a diagram of the preferred embodiment 10 according to the present invention, which is disposed inside the electric thin body to constitute a component discharged from the computer: a device for heat. Usually, the above-mentioned cooling fan! In combination, the heat exchange diagram on the heat exchanger is promoted from time to time. The cooling fan 1 includes a trough 2〇 and a blade portion buckle b. The trough 20 is rotatably provided in the frame and the motor (not shown) The rotating shaft of the display is combined to rotate body-wise. The above-described trough 20 is disposed in the above-mentioned frame;: Axis The above-described hub 20 is provided in the cooling wind according to the present invention. . The hub 2 has a structure that is coupled to the rotating shaft of the motor: two; 5 坩, "127. The cooling fan of the month is similar, and therefore detailed description is omitted. The blade portion 30 has a plurality of blades. The wheel blade 3G is formed radially. The blade portion 3G is arranged to be spaced apart from each other by the rotation of the above-mentioned troughs. The basic structure of the blade material is similar to that of the cooling fan. The first auxiliary blade 34 and the second auxiliary blade 36 are provided in the blade portion 3G. The first blade 34 is provided at an outer end portion of the blade portion 30 in the upper and upper directions. The first auxiliary blade 34 protrudes from the auxiliary Si 4 = surface 32. In the present embodiment, the first surface 32 is protruded in a vertical direction, and is for extending. The first auxiliary blade portion is formed. The thirteenth portion of the thirsty flow portion is disposed at the outer side in the rotation direction. That is, when the first auxiliary is rotated in the vibration of the two pieces 30, the blade is used to cut the air in the blade portion 30. "Part 3^, end, air' due to centrifugal force The leaves in the buckle Jie -, turn radius direction of the discharge, and thus play a role in natural air is discharged. The leaf is passed through the rear end portion of the blade portion 30 to be disposed on the rim 2G and the first leaf surface 32. The second auxiliary blade 36 is formed from the blade portion 30 toward the blade portion 3. The plurality of second auxiliary blades 36 are provided in plurality. The above t direction extends. The second auxiliary blade % to the auxiliary blade 36 are arranged apart from each other in the direction of the rotation Έ 429127 of the blade portion 3〇. The second auxiliary blade 36 is disposed at a rear end portion of the blade portion 30 at a rotation of each of the blades. That is, the arrangement of the second auxiliary blades 36 is referred to. In Fig. 5, the flow of air at the time of ^==忒 ^ 30 rotation. That is, the above (9) part 3 (four) rotation direction is rotated in the opposite direction to the Wei shown in Fig. 5 . Accordingly, the above-mentioned ^=2 is arranged on the side surface of the blade portion 30 on the side surface in the rotation direction of the blade portion 3A. In the following description, the cooling fan ω1 of the present embodiment configured as described above will be described in detail with reference to the operation of the cooling fan 10. First, under the premise of understanding the country shown in Figs. 2 to 4, the following is explained. The structure of the scale is rotated by the wheel-out shaft (not shown). Therefore, the motor rotates the wheel by rotating the wheel 2, and the structure of the blade portion 30 is formed by /L - The other rotation causes the blade portion 3 to rotate.空气 The air flowing along the rotating portion 3 of the air near the f piece 3 (four) is moved upward by the rotation direction of the blade portion 3〇; =^^ The force applied to the outer end portion of the upper M in this process. However, in the direction of the protrusion: is formed perpendicular to the above-mentioned leaf surface 32. Further, the first auxiliary blade 34 extends along the leaf surface 7 M429127 _ 片片 30 _ rotation direction, and the first auxiliary blade 34 cuts the outer end portion of the sheet portion 30 along the upper side === The moving air becomes such that the above-mentioned first-assisted blade 34 hinders the flow of air due to the centrifugal force of the gas in the blade portion, thereby suppressing the vibration due to the diverging J = air flow. The effect of the noise generated by the vibration of the outer end portion of the blade portion 30 is that, in other respects, the air flowing through the leaf surface 32 flows toward the entire sheet portion = the twisting direction. The flow along the leaf surface 32 Flowing between the rear end of the leaf surface 32 and another leaf surface adjacent the leaf surface 32 to form a swirling vortex. In the process, the second auxiliary blade naturally transitions along the leaf surface % The air flowing in the rotation direction of the blade portion % flows in a straight line, thereby suppressing the formation of the swirling vortex. This is illustrated in Fig. 5, and the second auxiliary blade can be easily understood by comparing Fig. 5 with Fig. 1. The role of 36 As described above, the cooling fan 1' according to the present invention reduces vibration by reducing the flow of air occurring at the end portion of the blade portion 30 by the first auxiliary blade 34 and the second auxiliary blade 36 provided in each blade portion 30. Therefore, the effect of quietness and improved cooling performance during the rotary operation is provided. The present invention has been described in detail by way of preferred embodiments, but the present invention is not limited to the above embodiments, and those having ordinary knowledge in the art can use the present invention. BRIEF DESCRIPTION OF THE DRAWINGS [Brief description of the drawings] M429127 Fig. 1 is a view for explaining the problem of the prior cooling fan. Fig. 2 is a cooling according to an embodiment of the present invention. Figure 3 is a plan view of the cooling fan illustrated in Figure 2. Figure 4 is a view of the cooling fan illustrated in Figure 2 in the opposite direction of Figure 3. Figure 5 is a view of Figure 2 [Main component symbol description] of the flow of the air of the cooling fan 10 Cooling fan 15 Frame 20 Hub 30 Blade portion 32 Leaf surface 34 First auxiliary blade 36 Second auxiliary blade 9