200905083 九、發明說明： 【發明所屬之技術領域】 本發明係指一種串聯式風扇及其扇框結構，尤其指 一種具有增加出口氣流靜壓，降低噪音產生，並且改善 流場不穩定之串聯式風扇及其扇框結構。 【先前技術】 隨著電子裝置效能的不斷提昇，散熱裝置或散熱系 統已成為現行電子裝置中不可或缺的配備之一，因為電 子裝置所產生之熱能若不加以適當地散逸，輕則造成效 能變差’重則會導致電子裝置的燒毀。冑熱裝置對於微 電子元件（例如積體電路，integratedcircuits)而言更 疋重要，因為隨著積集度的增加以及封裝技術的進步， 使得積體電路的面積不斷地縮小，同時每單位面積所累 積的熱能亦相對地會更高，故高散熱效能的散熱裝置一 直是電子產業界所積極研發的對象。 然而’請參閱第1圖’第i圖係為習知組合式風扇 之剖面示意圖。由於電子產品的單位面積發熱量日益增 加的結果’單一風扇無法有效帶走所產生的熱量，因此 則產生了以結合多個風扇，來解決單一風扇的散熱能力 不足問題H由於組合式風扇i的人口風扇⑴之 肋條12主要是用來提供入口風扇lla之框體⑴與馬達 200905083 底座π的連結，並無導正氣流的效果，因此由入口風扇 lla導出的氣流再進入出口風扇Ub日夺，會形成多向流 動的氣流’而形成不狀的流場，造成出π風扇llb益 法發揮應有的效能’進而造成出口風壓減弱，無法得到 預期之加乘效果。另外，組合式風扇1形成的不穩定的 流場’導致出π風扇llb的出風無法集中於特定發孰源 散熱出風’徒浪費了不少的虛功，並且容易產生噪音與 震動，對電子產品的使用帶來負面的影響。 有鑑於此’如何提供—種具有整流效果，避免渦旋 的發生’進而提高出風口氣流靜壓而達到散熱效率提升 之風扇及其扇框結構，實為重要課題之一。 【發明内容】 為了解決上述問題，本發明係提出串聯式風扇及其 /王。構可以提升進人串聯式風扇流場不穩定的問 題，並提升整體的風量與風壓，減少渦漩的產生，進而 達到提高散熱效率及減少噪音之功效。 一為達到上述的目的，提出一種扇框結構，包括至少 第一框體、一第二框體與複數個導流件，《流件設置 ，第才匡體與第二框體之間，每一導流件各具有一傾斜 部與i向延伸部’而每傾斜部與其所對之應轴向延伸 部共同形成一弓角。 200905083 為達到上述的目的H種串料Μ ,至少勺 括-第-風扇、-第二風扇與複數個導流件 = 具有-第-框體與-第-葉輪，而第二風扇具有一第: 框體與一第二葉輪’導流件設置於第-風扇與第二風： 之間，每—導流件各具有—傾斜部與1向延伸部，Ϊ 每傾斜部與其所對應之轴向延伸部共同形成 流件用以導引—氣流從第—風扇流人第二風扇。 如上述之”式風扇及其輕結構， 介於…度之間，而每傾斜部 = 伸部之高度比係介於G.U5之間，每傾斜延 軸向延伸部之高度總合係大於或等於心每輪子應 伸部係與扇框結構之轴心方向平行，或者形成延 度，每傾斜部與其所對應之轴向延： ’·’、 之結構，且導流件係與第-框體連,士 ^ 斜部與其所賴之轴_伸料 I。。母傾 部係盥第一框、查蛀 、、、’，、且之構件，傾斜 第框體連結，轴向延伸部係與第二框體遠社 且軸向延伸部係各為一獨立連— 流件與第二風扇連結，第—框體=風扇係藉由導 為一體成型^與導流件係 體更具有複數個靜葉，氣㈣㈣靜葉 第-框 令靜葉與傾斜部係具有相同之結構。、廣張和其 200905083 如上述之串聯式風扇，第一風扇與該第二風扇係互 為背向設置，且第二風扇之馬達底座係藉由垂直延伸部 與第二框體連結。第一葉輪與第二葉輪可互為相異之轉 向。而第二風扇與第一風扇係具有相同之結構。 為讓本發明之上述和其他目的、特徵、和優點能更 明顯易懂，下文特舉一較佳實施例，並配合所附圖式， 作詳細說明如下： 【實施方式】 請同時參閱第2A圖、第2B圖與第2C圖，第2A、 2B圖為依照本發明較佳實施例之串聯式風扇正、反示意 圖，第2C圖為第2A圖風扇之剖面示意圖。本發明之串 聯式風扇2’至少包括有一第一風扇21a、一第二風扇 21b與複數個導流件22,第一風扇2U具有一第一框體 211a與一第一葉輪23a，而第二風扇21a具有一第二框 體211b與-第二葉輪23b，而第—風扇21a與第二風扇 21b可具有相同之結構。導流件22設置在第一風扇… 與第二風扇21b之間’導流件22係用以導引氣流從第一 風扇2U流入第二風扇21b，最後由第二風扇仙流出 串聯式風扇2。 請同時參閱第2C圖與第2D圖，第2D圖為第⑼圖 之導流件剖面與氣流流向示意圖H流件22各具有 200905083 -傾斜部221與-轴向延伸部222，而傾斜部22i與其 所對應之軸向延伸部222共同形成一弓“，弓角：大 小係介於20至50度之間。若以& 8公分（cm)風扇為例， 每一傾斜部221高度H1與其對應之轴向延伸部之高度 H2的總合係大於或等於15公羞（職），並且軸向延伸部 222與串聯式風扇2之轴心方向χ平行，如第別圖所示。 然而本發明並不限定於此，軸向延伸部如除了與抽心 方向X平行之外，軸向延伸部222亦可與軸心方向X之 間形成-夾角（圖未示）’而當此夾角小於或料2〇度時 仍具有最佳導流表現。 當串聯式風扇2實際運作時，首先氣流“系以約略 垂直於入風口 24的角度’自入風口 24流入第—風扇 …，並經由第-風扇21a之第一葉輪咖的旋轉帶動而 稍微偏斜形成側向氣流f，，其中側向氣流f，可分為一 切線速度分量a與一垂直速度分量b。 ' | 由於串聯式風扇2在一風扇之間增加了導濟件22 的設計’故側向氣流f’並非直接進入第二風扇灿。側 向氣流Γ會先流經導流件22。首先，#側向氣流厂 先流經導流件22的傾斜部221時，由於傾斜部2啦的傾 斜角度與側向的氣流f相近，再加上傾斜部221與軸向 延伸部222共同形成的翼形流線造型，側向氣流f，可 200905083 以很順利的被導引至傾斜部221與軸向延伸部222之交 界處，此時已有部分的切線速度分量&在傾斜部221的 導引下轉換成垂直速度分量b，之後再經由軸向延伸部 222的導引，而再次將氣流導正，因此在出風時，流出 第一風扇21a的氣流π會以近似於幾乎垂直第二風扇 21b之入風口處的角度而進入第二風扇21b。因此第一風 扇21a與第二風扇21b的作動方式、功率消耗都會有相 近的結果。最終經由第二風扇21b之第二葉輪挪帶動 後，最後氣流由第二風扇21b之出風口 25排出，用以對 發熱源進行散熱。 然而’除了上述之實施方式之外，在實際使用上， 本發明之導流件22還可有其它不同形式的變化。請參閱 第3圖，第3圖為第2c圖之另一種樣態。在方便生產與 裝的考量下，本發明之導流件22的傾斜部與轴向 延伸部222可以設計成一體成型之結構且一獨立的組 如第3圖所示。如此-來，無論第-葉輪23a與該 第-葉輪23b為相同或相異轉向都可以使用， ^2有損壞發生，可以輕鬆的拆卸替換，而延 風扇2的使用壽命。 唧八 而導流件22還可有其它不同的變化方式。在降低 ，、度的考量下，更可以將導流件22與第-框體2Ua 200905083 或第二框體211b作成一體的結構， 半儿圖所不。如 此:來，串聯式風扇2在組裝上的時間得以節省下來， 提咼生產的競爭力。 再者，導流件22之傾斜部221與轴向延伸部222 更可=是互為對組的構件。請同時參閱第4A圖與第4β 圖，“Α圖與第4Β圖為採用獨立構件之導流件 式風扇的另二實施例。如第4Α 可—_第一:體 體㈣組立形成串聯式風扇2，或者是如第 傾斜部221與軸向延伸部姐各自與第—框體川 -框體2llb以一體成型的方式，之後 :: 形成串聯錢扇21無論設計方式騎，^的且^ 方式皆可以發揮本發明之導流件22優良的效果。的〜 風扇第Γ第5圓為—體成型之串聯式 本發明串=。使用者如果有簡化構件的考量下， 训與導流件22作成一體成型的構造，f 一忙體 樣可以達到導流的效果。 一朿’也同 可以第聯柄屬2如果U財㈣需求，在更 第一風扇2lb的出風㈣處設計複數個靜葉心 200905083 且將靜葉22a具有與傾斜部221 _ 丨相同的導流結構，故氣 & ί可隨著靜葉22a導引至埶晋#^ ,^ ”丨至熱量最集中的區域，達到散 :的目的。或者’如果有大面積散熱的考量下，必要時 可在出風口處安裝—擴張部26，讓經由靜葉…導流 的氣流卜可以藉著擴張部26而導出，來進行大面積的 散熱’如第5圖所示。 *相對的，請參閱第6圖，第6圖為無搭配出風口靜 葉之串聯式風扇的-實施例。使用者如考慮到未來的擴 充1*生’更可以在第二風扇21b的出口不安裝任何的靜葉 22a及擴張部26。如此’在未來在串聯式風扇2的組裝 上，除了運用的彈性空間變大之外，更具有減少噪音^ 增加風量的優點。 本發明之應用並不限於此，請參閱第7A圖至第7d 圖第7A圖至第7D圖為採用背向對組之串聯式風扇的 實施例。更可以將第一風扇21a與第二風扇21b作背向 的配置a又ef，而第一風扇2 1 b之馬達底座更可以利用導 流件22之垂直延伸部與第二框體211b連結，其它第一 框體211a、第二框體211b與導流件22的變化與先前各 段所述相同’則不多贅述。如此更能夠充分擴大導流件 22的應用範圍。 如有需要多個風扇串聯使用的場合，則依照實際需 12 200905083 要增加第一風扇21a的數量，每一第—風扇…之間都 藉由導流件22作連結，最後再與第二風扇21b組立。如 此設計，即可達到強化串聯式風扇2散熱效能及實用上 的變化性。 綜上所述，採用導流件22的串聯式風扇2,不僅在 改^ 了習知組合式風扇i出風σ25因產生渦流而導致的 流場不穩定的問題’明顯提高風壓與風速。另外導流件 22的使用’使得第一風扇叫與第二風扇训具有相似 的特性，都有利於產品的設計與開發，而導流件2 2組合 的多樣性設計，更帶來了生產與組合上的彈性。 以上所述僅為舉例m非為限制性者。任何未脫 離本七月之精神與範嘴，而對其進行之等效修改或變 更，均應包含於後附之申請專利範圍中。 " 【圖式簡單說明】 第1圖係為習知組合式風扇之剖面示意圖。 第2A、2B目4依照本發明較佳實施例之一種串聯 式風扇正、反面示意圖。 第2C圖為第2A圖風扇之剖面示意圖。 第2D圖為第2B圖之導流件剖面與氣流流向示意 圖。 第3圖為第2C圖之另一種樣態。 13 200905083 第4A圖與第4β圖為採用獨立構件之導流件 式風扇的另二實施例。 L之串聯 第5圖為-體成型之串聯式風扇之剖面示意圖。 第6囷為無搭配出風口靜葉之串聯式風扇的一實施 例。 ^ 第7A圖至第7D圖為採用背向對組之串聯式風扇的 實施例。 【主要元件符號說明】 1 :組合式風扇 111 :框體 12 :肋條 2:串聯式風扇 21b:第二風扇 211 b _·第二框體 22a :靜葉 222 ·轴向延伸部 23b :第二葉輪 25 :出風口 a :弓角 H1 :傾斜部高度 X :軸心方向 11 a入口風扇 11 b :出口風扇 17 :馬達底座 21a第一風扇 211a :第一框體 22 :導流件 221 :傾斜部 23a :第一葉輪 24 :入風口 26 :擴張部 ί ' f’ 、L λ :氣流 Η2 :轴向延伸部高度 14200905083 IX. Description of the Invention: [Technical Field] The present invention relates to a tandem fan and a fan frame structure thereof, and more particularly to a tandem type having an increased static pressure of an outlet airflow, reducing noise generation, and improving flow field instability. Fan and its fan frame structure. [Prior Art] As the performance of electronic devices continues to increase, heat sinks or heat dissipation systems have become one of the indispensable devices in current electronic devices, because the thermal energy generated by the electronic devices is not properly dissipated, resulting in performance. The deterioration 'heavy' will cause the electronic device to burn out. Thermal devices are more important for microelectronic components (such as integrated circuits), because with the increase in the degree of integration and advances in packaging technology, the area of the integrated circuit is continuously reduced, while the unit area is The accumulated heat energy is relatively higher, so the heat dissipation device with high heat dissipation performance has been actively developed by the electronics industry. However, 'see Fig. 1' is a schematic cross-sectional view of a conventional combined fan. As a result of the increasing heat generation per unit area of electronic products, a single fan cannot effectively take away the heat generated, so a problem arises in that a plurality of fans are combined to solve the problem of insufficient heat dissipation of a single fan due to the combined fan i The rib 12 of the population fan (1) is mainly used to provide the connection between the frame (1) of the inlet fan 11a and the base π of the motor 200905083, and has no effect of guiding the airflow. Therefore, the airflow derived by the inlet fan 11a enters the outlet fan Ub again. Will form a multi-directional flow of airflow 'and form a non-shaped flow field, causing the π fan llb to play its proper performance', which in turn causes the outlet wind pressure to weaken, and the expected multiplication effect cannot be obtained. In addition, the unstable flow field formed by the combined fan 1 causes the air output of the π fan 11b to be concentrated on the heat of the specific hair source, which wastes a lot of virtual work and is prone to noise and vibration. The use of electronic products has a negative impact. In view of this, it is one of the important topics to provide a fan and a fan frame structure which have a rectifying effect and avoid the occurrence of vortex, thereby improving the static pressure of the air outlet to achieve heat dissipation efficiency. SUMMARY OF THE INVENTION In order to solve the above problems, the present invention proposes a tandem fan and its/or king. The structure can improve the instability of the flow field of the series fan, and improve the overall air volume and wind pressure, reduce the generation of vortex, and thereby improve the efficiency of heat dissipation and reduce noise. In order to achieve the above object, a fan frame structure is provided, including at least a first frame body, a second frame body and a plurality of flow guiding members, and a flow element is disposed between the first body and the second frame. Each of the flow guiding members has an inclined portion and an i-direction extending portion, and each inclined portion forms an arch angle with the axially extending portion thereof. 200905083 In order to achieve the above-mentioned purpose, the H-type string Μ, at least the scoring-the first fan, the second fan and the plurality of baffles=the -the first frame and the -the first impeller, and the second fan has a first : the frame body and a second impeller 'flow guiding member are disposed between the first fan and the second wind: each of the flow guiding members has an inclined portion and a 1-direction extending portion, and each inclined portion and the corresponding axis thereof The flow piece is formed together with the extension portion for guiding the air flow from the first fan to the second fan. The above-mentioned "fan" and its light structure are between ..., and the height ratio of each inclined portion = extension is between G.U5, and the height of each oblique extension axial extension is greater than Or equal to the heart, each wheel should be parallel to the axis direction of the fan frame structure, or form a ductility, each inclined portion and its corresponding axial extension: '·', the structure, and the flow guide system and the first - The frame body is connected, the slanting part and the axis to which it depends. _ 伸 I. The first frame of the female slanting system, the 蛀 蛀, , , ', and the components, the inclined frame joint, the axial extension The second frame body and the axial extension portion are each an independent connection - the flow piece is coupled with the second fan, and the first frame = the fan system is integrally formed by the guide body ^ and the flow guide body system has a plurality of vanes, gas (four) (four) vane first frame, the vane has the same structure as the inclined portion., Guang Zhang and its 200905083, as in the above-mentioned series fan, the first fan and the second fan are opposite each other The motor base of the second fan is coupled to the second frame by a vertical extension. The first impeller and the second blade The second fan and the first fan have the same structure. The above and other objects, features, and advantages of the present invention will become more apparent and understood. With reference to the drawings, a detailed description will be given below: [Embodiment] Please refer to FIG. 2A, FIG. 2B and FIG. 2C at the same time, and FIGS. 2A and 2B are diagrams showing a series fan in accordance with a preferred embodiment of the present invention. 2C is a cross-sectional view of the fan of FIG. 2A. The tandem fan 2' of the present invention includes at least a first fan 21a, a second fan 21b and a plurality of flow guiding members 22, and the first fan 2U has A first frame 211a and a first impeller 23a, and the second fan 21a has a second frame 211b and a second impeller 23b, and the first fan 21a and the second fan 21b may have the same structure. The member 22 is disposed between the first fan and the second fan 21b. The flow guiding member 22 is configured to guide the airflow from the first fan 2U into the second fan 21b, and finally the second fan is discharged from the tandem fan 2. See also 2C and 2D, and 2D is (9) The flow guide cross section and the air flow direction diagram H flow element 22 each have 200905083 - inclined portion 221 and - axial extension portion 222, and the inclined portion 22i and its corresponding axial extension portion 222 together form a bow ", bow angle : The size is between 20 and 50 degrees. If the & 8 cm (cm) fan is taken as an example, the total height H1 of each inclined portion 221 and the height H2 of its corresponding axial extension is greater than or equal to 15 ohms, and the axial extension 222 Parallel to the axis direction of the tandem fan 2, as shown in the figure. However, the present invention is not limited thereto, and the axial extension portion 222 may form an angle (not shown) between the axial direction X and the axial direction X, respectively. The best conductivity is obtained when the angle is less than or 2 degrees. When the tandem fan 2 is actually in operation, firstly, the airflow "flows into the first fan from the air inlet 24 at an angle approximately perpendicular to the air inlet 24", and is slightly biased by the rotation of the first impeller of the first fan 21a. The lateral airflow f is obliquely formed, wherein the lateral airflow f can be divided into a linear velocity component a and a vertical velocity component b. ' | Since the tandem fan 2 increases the design of the guide member 22 between a fan' Therefore, the lateral airflow f' does not directly enter the second fan. The lateral airflow first flows through the flow guiding member 22. First, when the #lateral airflow factory first flows through the inclined portion 221 of the flow guiding member 22, due to the inclined portion The inclination angle of 2 is close to the lateral airflow f, and the wing-shaped streamline formed by the inclined portion 221 and the axial extension portion 222, the lateral airflow f can be smoothly guided to the tilt of 200905083. At the junction of the portion 221 and the axially extending portion 222, at this time, a portion of the tangential velocity component & is converted into a vertical velocity component b under the guidance of the inclined portion 221, and then guided by the axially extending portion 222, And the airflow is again guided, so when the wind is out The airflow π flowing out of the first fan 21a enters the second fan 21b at an angle close to the air inlet of the second fan 21b. Therefore, the operation mode and power consumption of the first fan 21a and the second fan 21b are similar. The result is finally driven by the second impeller of the second fan 21b, and finally the airflow is discharged by the air outlet 25 of the second fan 21b for dissipating heat from the heat source. However, in addition to the above embodiments, in practice In use, the flow guide 22 of the present invention may have other different forms of variation. Please refer to Figure 3, and Figure 3 is another aspect of Figure 2c. The present invention is considered to be convenient for production and installation. The inclined portion and the axially extending portion 222 of the flow guiding member 22 may be designed as an integrally formed structure and a separate group as shown in Fig. 3. Thus, regardless of whether the first impeller 23a and the first impeller 23b are the same or Different steering can be used, ^2 has damage, can be easily disassembled and replaced, and the service life of the fan 2 can be extended. 导8 and the deflector 22 can have other different ways of change. under Further, the flow guiding member 22 can be integrated with the first frame 2Ua 200905083 or the second frame 211b, and the half frame is not included. Thus, the time for assembling the series fan 2 can be saved. The competitiveness of the production. Further, the inclined portion 221 of the flow guiding member 22 and the axially extending portion 222 can be more a pair of components. Please refer to FIG. 4A and FIG. 4β, "Α图和第4Β The other figure shows a second embodiment of a deflector fan with separate components. For example, the fourth body may be -_first: the body body (4) is formed to form the tandem fan 2, or the first inclined portion 221 and the axially extending portion are integrally formed with the first frame body - the frame body 2llb, and then :: The formation of the tandem money fan 21 can exert the excellent effect of the deflector 22 of the present invention regardless of the design of the ride, the ^ and the method. ~ Fan No. 5th circle is a series-formed series of the present invention. If the user has a simplified component, the training and the flow guiding member 22 are integrally formed, and the effect of the diversion can be achieved by a busy body. A 朿 'also can be the first genus 2 if U Cai (four) demand, in the first fan 2lb of the wind (four) design a plurality of static leaf heart 200905083 and the vane 22a has the same guide as the inclined portion 221 _ 丨The flow structure, so the gas & ί can be guided along with the stationary leaf 22a to the 埶晋#^ , ^ 丨 to the area where the heat is most concentrated, to achieve the purpose of the dispersion: or 'If there is a large area of heat dissipation, it is necessary At the time of the air outlet, the expansion portion 26 can be installed, and the air flow guided by the vane can be led out by the expansion portion 26 to perform large-area heat dissipation, as shown in Fig. 5. * Relatively, please Referring to Fig. 6, Fig. 6 shows an embodiment of a tandem fan without a venting vane. If the user considers the future expansion, the user can install no static at the exit of the second fan 21b. The leaf 22a and the expansion portion 26. Thus, in the future, in the assembly of the tandem fan 2, in addition to the increased elastic space used, there is an advantage of reducing the noise and increasing the air volume. The application of the present invention is not limited thereto, See Figures 7A through 7d for Figures 7A through 7D for backing The embodiment of the tandem fan of the group may further configure the first fan 21a and the second fan 21b to be facing away from each other, and the motor base of the first fan 2 1 b may further utilize the vertical extension of the deflector 22 The portion is coupled to the second frame body 211b, and the changes of the other first frame body 211a, the second frame body 211b, and the flow guide member 22 are the same as those described in the previous paragraphs. Therefore, the flow guide member 22 can be sufficiently enlarged. If there is a need for multiple fans to be used in series, according to the actual needs 12 200905083 to increase the number of first fans 21a, each of the first fans ... are connected by the flow guide 22, and finally The second fan 21b is assembled. Thus, the heat dissipation performance and the practical variability of the tandem fan 2 can be enhanced. In summary, the series fan 2 using the flow guiding member 22 is not only modified. The problem of instability of the flow field caused by the vortex flow of the combined fan i outlet σ25 'significantly increases the wind pressure and the wind speed. The use of the flow guide 22' makes the first fan have similar characteristics to the second fan training. All are conducive to product design The combination of design and development, and the diversity of the design of the flow guides 2 2 brings flexibility in production and combination. The above description is only for the example m is not restrictive. Anything that has not deviated from the spirit and scope of this July The mouth, and equivalent modifications or changes to it, shall be included in the scope of the patent application attached. " [Simple description of the drawing] Figure 1 is a schematic cross-sectional view of a conventional combined fan. 2B 4 is a schematic view of a front and back side of a tandem fan according to a preferred embodiment of the present invention. Fig. 2C is a schematic cross-sectional view of the fan of Fig. 2A. Fig. 2D is a schematic view of the cross section of the deflector and the flow direction of the air flow of Fig. 2B. Figure 3 shows another aspect of Figure 2C. 13 200905083 The 4A and 4β figures are another embodiment of a flow guide fan with separate components. L series connection Fig. 5 is a schematic cross-sectional view of a body-formed series fan. The sixth step is an embodiment of a tandem fan without a venting vane. ^ Figures 7A through 7D are embodiments of a tandem fan employing a back-to-back pair. [Description of main component symbols] 1 : Combined fan 111 : Frame 12 : Rib 2 : Tandem fan 21 b : Second fan 211 b _ Second frame 22a : Vane 222 · Axial extension 23b : Second Impeller 25: air outlet a: bow angle H1: inclined portion height X: axial direction 11 a inlet fan 11 b: outlet fan 17: motor base 21a first fan 211a: first frame 22: flow guide 221: inclined Portion 23a: first impeller 24: air inlet 26: expansion portion ί ' f' , L λ : air flow Η 2 : axial extension height 14