200424444 玫、發明說明： 【發明所屬之技術領域】 且特別是有關於〜種 、本發明是有關於一種扇葉結構 軸流扇之扇葉結構。 【先前技術】 心式熱的風扇主要分成二種形式：μ式風扇和離 几羽，而俵用最多大概是屬於轴流式 離 扇通常適合在流阻較小的系統，也就是說， 風壓較小。 聊/瓜式風屬的 第U圖，其繪示習知技藝的一種轴流 回 圖為第1Α圖之剖面圖。在驅動裝置帶動苹片^ ，體作功產生氣流時，驅動裝置大== 即將流入葉片2〇的氣流常會受到軸殼10的阻 氧旋12(如第1B圖所示），因而減少入風的氣流量。 、改良者針對扇框的結構上去作改善，藉以增加 ^堅，因為風賴轉對线作功產生氣流，氣流在流經肋 “大的扇框’則會擾亂形成氣★ 12，造成風壓損失，減低 風扇的效用° &良者將肋條狀的扇框修改為和旋轉的動葉 形狀相似的靜葉，用以減少氣旋12,增加風壓。 風扇散熱的效率，除了和風壓有關係外 ，和入風口空 氣流入的量也很有關連，本發明即是針對增加人風量，來 進行不斷的創新，以改善上述的缺失。 200424444 【發明内容】 本發明的目的主要是提供一種扇葉結構，用以增加入 :的氣流量。根據上述之目的’提出一種扇葉結構的設計， ^可裝》又於ϋ動裝置上，此扇葉結構包括轴殼部份和動 葉係㈣殼為圓讀向連接在此轴殼上 =5之，複數個動葉連接在轴殼的侧面上），其中該複數個 動葉在入風Π端的葉緣需在軸向上高於該轴殼(換言之，複 數個動葉在人風Π端的葉緣於軸向上高於該軸殼之頂面）。 本發明的另-目的是在將上述之扇葉設計應用於具有 動靜葉之組合的風扇。根據上述之目#，提出—種具有動 靜葉之組合的風扇，其人風口端的動葉應用軸殼之頂面低 於扇葉上葉緣的設計，也可以應用在具有多層動靜葉之風 扇例如在單一扇框内包含兩個動葉和一個靜葉置於兩個 動葉之間。 因為此種「軸殼之頂面低於扇葉之上葉緣」的設計， 故可藉由扇葉引進侧邊氣流，以增加入風的氣流量。而且， ，用此設計在具有動靜葉之組合的風扇更可因入風的氣流 量的增加而提高風扇的性能。 【實施方式】 請參照第2Α圖及第2Β圖。第2Α圖係繪示本發明之 較佳實施例的一種軸流式風扇的示意圖，第2Β圖為第2Α 圖之剖面圖。針對習知風扇的入風氣流量的問題，本發明 ^出一種新的扇葉結構設計，來增加入風的氣流量，其特 200424444 點是在入風口端，連接於轴殼10側面的葉片20在入風口 ^係沿著軸殼10上方朝軸殼之中心位置作徑向的延伸，且 上葉緣201於軸向上高於轴殼10及風扇的驅動裝置5〇。換 &之’軸殼10的頂面在入風口端低於扇葉之上葉緣2〇1。 要特別說明的是，位於軸殼頂面之内側葉緣202具有一垂 直端面’而於該垂直端面與轴殼頂面之間形成一空間，以 增加側邊入氣。此種軸殼頂面低於扇葉之上葉緣201及位 於輛殼頂面上之垂直端面的設計優點是可藉由内侧葉緣 202引進側邊氣流，以增加入風的氣流量。因此，在第 圖中氣流14在入風口端流經軸殼頂面附近時，就不會 產生氣旋12(如第1B圖所示），因而可以增加入風的氣流量。 請參照第3圖。第3圖係繪示上述之本發明較佳實施 例中的扇葉結構的正視、上視、側視及斜視圖。圖中包含 3 4個視角所繚示的圖，更清楚的表達本發明較佳實施例 中，扇葉結構之軸殼10和葉片2〇相對的位置和關係。 在扇葉的設計上，因為葉片2G在人風口端係沿著轴殼 頂面上方朝軸殼之中心位置作徑向的延伸，所以葉 的設計就有許多變化的空間。參照第4A、4b、n 4E圖，係繪示本發明之其他風扇結構設計之剖面圖。第从 圖所繪示之葉片2〇 〇據接紅奴 軸殼頂面Μ ▲轴之侧面’而上葉緣高於 孕由双頂面0第4Β圖所繪示之葦片川古认红士 份葉緣延伸至軸殼上方。第fc=:於軸：10頂面之部 之葉片不同的是，第4C圖之 葉片與第^圖 疋弟 圖之葉片2〇延伸至轴發頂而μ 士 之部份葉緣，具有斜角設計。第 叩弟4D圖所繪示之扇葉結構 200424444 與第4C圖不同的是，第4〇圖之葉片延伸至轴殼之令 心（圓心）。最後，第4E圖和第4〇圖不同的是第犯圖之葉 片2〇延伸至軸殼之中心與另一對稱葉片連接。無論葉片20 於入風口端高於轴殼1G頂面的葉緣如何設計，只要不脫離 ^毛月的特點「扇葉在人風σ端係沿著軸殼頂面上方朝軸 =之中心位置作徑向的延伸，且葉緣在軸向上高於該轴 八又J，都可以作設計上的更動與潤飾。 在應用上，本發明之扇葉結構可用於具有動葉和靜葉 二的軸机式風扇。第5 Α圖係繪示本發明之另一種具有 動靜葉之軸流式風扇的較佳實_，此風扇包 扇葉結構和扇框30,而扇框3〇内更包含一承置部6〇，用 2擇和連接風扇中的驅動裝置和扇葉結構，並使該驅動 可偶合㈣轴殼内’以減少風扇所佔的體積。該承置 柯藉由複數個肋條或靜葉4〇(參閱第2_以固定於該扇 =内。該扇框、該承置部和複數個肋條或靜葉可以一體射 立成型方式製成’以大幅降低組裝之時間與成本及減少噪 上述所明的動葉就是扇葉結構，而該靜葉更可提供額 壓導流功能。因此，配合本發明之扇葉結構加上靜 ^的應用’其目的就是藉由本發明扇葉結構在人風口端， 2入風的氣流量，加上靜葉的增壓導流功用，加強風扇 的整體散熱性能。 此外，一個軸流式風扇中的動葉和靜葉的數量可以不 ，-組:舉例來說，第5Β圖係繪示本發明又一較佳實施 列’其為-種具有多重動靜葉之軸流式風扇，圖中包含一 200424444 、:靜葉和兩組動葉分別位於入風口端和出風口端。入風口 =的動葉設計係應用本發明之扇f結構，出風口端則不限 疋:或是相㈣扇葉結構分別置於扇框之人風口端或出風 :端°當然’動葉和靜葉的數量也可以再增加，作不同 序上的排列組合。200424444 Description of the invention: [Technical field to which the invention belongs] In particular, the present invention relates to a species, and the present invention relates to a fan blade structure of an axial flow fan. [Previous technology] Heart-type heat fans are mainly divided into two types: μ-type fans and several feathers, and most of them are probably axial flow type. They are usually suitable for systems with low flow resistance, that is, wind The pressure is small. Figure U of the chat / melon-style wind, which shows an axial flow of the conventional technique. The figure is a cross-sectional view of Figure 1A. When the driving device drives the apple ^, and the body works to generate airflow, the driving device is large == The airflow that is about to flow into the blade 20 is often subject to the oxygen blocking rotation 12 of the shaft housing 10 (as shown in FIG. 1B), thus reducing the incoming wind Air flow. The improver makes improvements to the structure of the fan frame, so as to increase the strength, because the wind relies on the line work to generate airflow, and the airflow flowing through the rib "large fan frame" will disturb the formation of air ★ 12, causing wind pressure Loss and reduce the effectiveness of the fan ° & The good one modified the rib-shaped fan frame to a stationary blade with a shape similar to the rotating rotor blade to reduce the cyclone 12 and increase the wind pressure. The efficiency of the fan's heat dissipation is related to the wind pressure. In addition, it is also closely related to the amount of air flowing into the air inlet. The present invention is directed at increasing the amount of human airflow, and continuously innovating to improve the above-mentioned shortcomings. 200424444 [Summary of the Invention] The purpose of the present invention is mainly to provide a fan blade The structure is used to increase the amount of air flowing into it. According to the above purpose, a design of a fan blade structure is proposed, which can be mounted on a moving device. The fan blade structure includes a shaft casing portion and a moving blade system casing. For the circular reading direction connected to this shaft housing = 5, a plurality of moving blades are connected to the side of the shaft housing), wherein the blade edges of the plurality of moving blades at the inlet side of the shaft must be higher than the shaft housing in the axial direction ( In other words, plural The leaf edge of the leaf at the end of the human wind is axially higher than the top surface of the shaft casing.) Another object of the present invention is to apply the above-mentioned fan blade design to a fan having a combination of moving and stationary leaves. According to the above-mentioned purpose # A fan with a combination of moving and stationary blades is proposed. The moving blade at the air outlet end is designed with the top surface of the shaft shell lower than the upper edge of the fan blades. Contains two moving blades and one stationary blade placed between the two moving blades. Because this "top surface of the shaft casing is lower than the blade edge above the blades" design, the side airflow can be introduced through the blades, To increase airflow into the wind. In addition, the fan with this combination of moving and stationary blades can improve the performance of the fan due to the increase in the amount of airflow entering the wind. [Embodiment] Please refer to FIG. 2A and FIG. 2B. Fig. 2A is a schematic diagram showing an axial flow fan according to a preferred embodiment of the present invention, and Fig. 2B is a sectional view of Fig. 2A. Aiming at the problem of the airflow of the conventional fan, the present invention provides a new design of the structure of the fan blades to increase the airflow of the air. The special point 200424444 is at the end of the air inlet, which is connected to the blade 20 on the side of the shaft casing 10. The air inlet ^ extends radially above the shaft housing 10 toward the center of the shaft housing, and the upper blade edge 201 is axially higher than the shaft housing 10 and the driving device 50 of the fan. At the end of the air inlet, the top surface of the shaft housing 10 is lower than the upper blade edge 201 of the fan blade. It should be particularly noted that the inner blade edge 202 located on the top surface of the shaft casing has a vertical end surface 'and a space is formed between the vertical end surface and the top surface of the shaft casing to increase the side air intake. The design advantage of the top surface of the shaft casing is lower than the blade edge 201 above the fan blade and the vertical end surface located on the top surface of the vehicle casing. The side airflow can be introduced through the inner blade edge 202 to increase the airflow into the wind. Therefore, in the figure, when the airflow 14 flows near the top surface of the shaft casing at the end of the air inlet, the cyclone 12 will not be generated (as shown in FIG. 1B), so the airflow rate of the incoming air can be increased. Please refer to Figure 3. Fig. 3 is a front view, a top view, a side view, and an oblique view of the fan blade structure in the above-mentioned preferred embodiment of the present invention. The figure includes diagrams shown from 34 perspectives to more clearly express the relative position and relationship between the shaft shell 10 and the blade 20 of the fan blade structure in the preferred embodiment of the present invention. In the design of fan blades, because the blade 2G extends radially from the top of the shaft casing toward the center of the shaft casing at the end of the air outlet, there is a lot of room for change in the blade design. Referring to Figures 4A, 4b, and n 4E, it is a cross-sectional view showing another structural design of the fan of the present invention. The blade 200 shown in the figure below is connected to the top surface of the red slave shaft shell M ▲ the side of the shaft 'and the upper leaf margin is higher than the double-top surface 0. 4B The leaf margin of Shifen extends above the shaft shell. No. fc =: The blades on the top surface of the shaft: 10 are different. The blades in Fig. 4C and the blades in Fig. ^ Are extended to the top of the shaft and the part of the leaf edge of μ is inclined. Corner design. The fan blade structure 200424444 shown in Figure 4D is different from Figure 4C in that the blade in Figure 40 extends to the center of the shaft (circle). Finally, the difference between Figure 4E and Figure 40 is that the blade 20 of the second figure extends to the center of the shaft shell and connects with another symmetrical blade. No matter how the blade edge of the blade 20 is higher than the top edge of the shaft housing 1G at the end of the air inlet, as long as it does not depart from the characteristics of ^ Maoyue, "the fan blade at the end of the human wind σ is along the top surface of the shaft housing toward the center of the axis = As a radial extension, and the blade edge is higher than the axis in the axial direction, it can be modified and retouched in design. In application, the fan blade structure of the present invention can be used for Axial fan. Figure 5A shows another preferred embodiment of the axial flow fan with moving and stationary leaves according to the present invention. This fan pack includes a fan blade structure and a fan frame 30, and the fan frame 30 includes A receiving part 60 is used to connect the driving device and the blade structure in the fan, and the drive can be coupled to the inside of the axle housing to reduce the volume occupied by the fan. The receiving unit uses a plurality of ribs. Or static leaf 4〇 (refer to 2_ to be fixed in the fan =. The fan frame, the receiving part and a plurality of ribs or static leaves can be made in a single injection molding method to greatly reduce the time and cost of assembly And the noise reduction mentioned above is the fan blade structure, and the static blade can provide frontal pressure diversion function. Therefore, in conjunction with the application of the fan blade structure of the present invention and the application of static cooling, the purpose is to strengthen the fan by using the fan blade structure of the present invention at the air inlet end, and the air flow of the inlet wind, and the booster guide function of the static blade. In addition, the number of moving blades and stationary blades in an axial fan may be different.-Group: For example, FIG. 5B shows another preferred embodiment of the present invention, which is a kind of An axial flow fan with multiple moving and stationary blades, the figure contains a 200424444, a stationary blade and two sets of moving blades located at the air inlet end and the air outlet end respectively. The design of the moving blade with the air inlet = is to apply the fan f structure of the present invention. The air outlet end is not limited: either the fan blade structure is placed on the air outlet end of the fan frame or the air outlet: end ° Of course, the number of moving and stationary leaves can also be increased, and arranged in different orders. combination.
由上述本發明之較佳實施例可知，若應用纟發明殼面 低於扇葉之上葉緣的設計，可藉由扇葉引進側邊氣流，增 加入風的減量。若將本發明之扇葉料應雜具有動^ 葉之組合的風扇，一方面增加入風的氣流量，另一方面增 加出氣的風壓，更可加強風扇的整體性能及散熱效果。 〜雖然本發明已以較佳實施例揭露如上，然其並非用以 限=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，當可作各種之更動與潤飾，因此本發明之保護 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】It can be known from the above-mentioned preferred embodiments of the present invention that if the design of the shell surface of the invention is lower than the upper blade edge of the fan blade, the side airflow can be introduced through the fan blade to increase the air loss. If the fan blade material of the present invention should be mixed with a fan having a combination of moving leaves, on the one hand, the air flow rate of the incoming air is increased, and on the other hand, the air pressure of the outgoing air is increased, and the overall performance and heat dissipation effect of the fan can be enhanced. ~ Although the present invention has been disclosed as above with a preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make various changes and decorations without departing from the spirit and scope of the present invention. The protection scope of the present invention shall be determined by the scope of the attached patent application. [Schematic description]
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： 第1A圖係繪示習知的一種軸流式風扇之示意圖； 第1B圖係繪示第1A圖之剖面圖； 第2A圖係繪示本發明的一種軸流式風扇之較佳實施 例之示意圖； 第2B圖係繪示第2A圖之剖面圖； 10 200424444 第3圖係繪示第2A圖中所使用之扇葉結構的正視、上 視、側視和斜視圖； 第4A、4B、4C、4D和4E圖係繪示本發明之多種扇葉 結構的剖面示意圖； 第5A圖係繪示本發明之另一具有動靜葉之組合的軸 流式風扇之較佳實施例；以及 第5B圖係繪示本發明再另一種具有多層動靜葉之組 合的軸流式風扇之較佳實施例。 【元件代表符號簡單說明】 10 ： 轴殼 12 ： 氣旋 14 ： 氣流 20 ： 葉片 30 ·· 扇框 40 ： 靜葉 50 : 驅動裝置 60 : 承置部 201 :上葉緣 202 :内側葉緣In order to make the above and other objects, features, and advantages of the present invention more comprehensible, a preferred embodiment is given below and described in detail with the accompanying drawings as follows: FIG. 1A shows a conventional A schematic diagram of an axial-flow fan; FIG. 1B is a cross-sectional view of FIG. 1A; FIG. 2A is a schematic diagram of a preferred embodiment of an axial-flow fan of the present invention; and FIG. Section 2A; 10 200424444 Figure 3 shows the front, top, side, and oblique views of the fan blade structure used in Figure 2A; Figures 4A, 4B, 4C, 4D, and 4E are shown Sectional schematic diagrams of various fan blade structures of the present invention; FIG. 5A illustrates another preferred embodiment of the axial flow fan with a combination of moving and stationary blades according to the present invention; and FIG. 5B illustrates another embodiment of the present invention. A preferred embodiment of an axial fan with a combination of multi-layer moving and stationary blades. [A brief description of the representative symbols of the components] 10: Shaft housing 12: Cyclone 14: Air flow 20: Blade 30 ·· Fan frame 40: Static blade 50: Drive device 60: Receiving part 201: Upper leaf edge 202: Inside leaf edge