200928111 九、發明說明： 【發明所屬之技術領域】 本發明是關於一種葉輪組’尤指一種可使葉輪組導入 之空氣，流場穩定及保持軸向及集中氣流，以提高散熱 效率。 【先前技術】 按，習知的葉輪組（200)’配合參看第四、五圖所示， (TW申請案號96120690)該葉輪組（200)具一葉輪（2〇)及 一環體組（20b) ’該葉輪（20)具一輪轂（22)及環設於輪轂 (22)周緣數片葉片（21)，葉片（21)與葉片（21)間形成導 風槽（23)，葉片（21)之後緣設有缺口（24)、（24b); —環 體組（20b)具兩個分別為内環體（25)、外環體（26)，該内 環體（25)、外環體（26)之截面形狀呈上窄下寬，該内環 體（25)、外環體（26)間並有設支架（28)，連接内環體（25) 之外周緣（26)及外環體（26)之内周緣（26a)，該外環體 (26) 之外周緣並設置有增壓葉片（29)，組合葉輪組（2〇) 及環體組（20b)，係將環體組（20b)之内環體（25)、外環 體（26)套設於葉輪（20)之葉片（21)之後緣的缺口（24)、 (24b)中，該内環體（25)之内周緣（25a)底端之凸緣 (27) ，則卡摯輪轂（22)底端定位，該外環體（26)係位於 導風槽（23)後緣區間，區隔該區間之導風槽（23)分別為 内、外導風槽（231)、（232)，該環體組（20b)之支架（28) 則對應位於内導風槽（231)區間，該環體組（20b)之增壓 葉片（29)則對應位於外導風槽（232)區間，據此，當葉輪 組（200)旋轉會將空氣由葉片（21)前緣導引進入導進導 5 200928111 風槽（23)並向後緣吹出，但是此種葉輪組（200)的内環體 (25)、外環體（26)的截面形狀呈上窄下寬，雖具離心加 速功效，但其氣流為斜向、擴張（如第五圖所示之氣流示 意線y)，無法對較小物件作正面有效散熱，也無法保持 氣流呈軸向集中。 又，電子設備運算速度愈來愈快，所產生的熱量亦 多，如何增加散熱效能，即為業界欲克服解決的重要課 題。 【發明内容】 有鑑於習用葉輪組之缺點，本發明人乃思及創新， 而設計出一種利用截面形狀呈上下等寬環體，來保持葉 輪組所吹出氣流成軸向且集中，提高對小物件散熱效 率，此即為本發明設計之主要目的所在。 為達成上述目的之結構特徵及技術内容，提供一種 「葉輪組」，其包括· 一葉輪及一環體組，其中葉輪具輪轂及環設該周緣 之數片葉片，葉片間形成導風槽，且在葉片後緣設缺口； 其中環體組具兩個環體，該環體之截面形狀呈上下等 寬，兩環體間設有支架連接該内、外環體，並可於外環 體之外周緣設增壓葉片，組合該葉輪及環體組，係將葉 輪之葉片後緣缺口，套設於環體組之内、外環體，該内 環體之内周緣底端的凸緣，則卡摯葉輪之輪轂底端作定 位，外環體係位於導風槽後區間，區隔該區間之導風槽 分別為内、外導風槽，該環體組之支架則對應位於内導 風槽區間，該環體組之增壓葉片則對應位於外導風槽區 6 200928111 間，據此，藉由環體設置於導風槽後緣之出風口端， 使氣流保持軸向及集中氣流。 b 藉此結構設計的優點有，由於截面呈上下等寬之严 體，設置在導風槽後緣區間，能使氣流保持軸向及集二 氣流’以利對小物件的散熱。 ^ 【實施方式】 請配合參看第一、二、三圖所示為本發明葉輪組之 一種實施例結構該葉輪組（100)包括： ❹ 一葉輪（10)，具有一輪轂（12)，及環設於輪轂（12) 周緣的數片葉片（11)，葉片（Π)與葉片（11)間為導風槽 (13)，葉片（11)後緣設與環體（15)、（16)之截面形狀相 同的缺口（14a)、（14b)， 一環體組（10b)該具内環體（15)及外環體 (16)，該内環體（15)及外環體（16)之截面形狀為上 下等寬’能使氣流保持轴向及集中氣流（如第三圖所示 之氣流示意線y)，其中内環體（15)具内周緣（15a)、 ❹ 外周緣〇5b)，其中外環體（16)具内周緣（16a)、 外周緣（16b) ’於内環體（15)及外環體（16)間，設 支架（18)連接内環體（15)之外周緣（i5b)及外環體 (16)之内周緣（16a) ’其中支架（18)之截面形狀， 可為三角形、方形、菱形、圓形、或其他具有連接 作用之幾何造型’内環體（15)之内周緣（15a)底端 設有凸緣（17)，將内、外環體（15)、（16)設置於葉片 後緣之缺口（14a)、（14b)，内環體（15)之内周緣（15a) 底端設的凸緣（17)則卡摯輪轂（12)底端形成組合，由 200928111 於外環體（16)位於導風槽（13)後緣區間，區隔該區間之 導風槽（13)分別為内導風槽（131)及外導風槽（132)，其 中支架（18)則對應位於每一内導風槽（131)後緣中，亦可 於外導風槽（132)區間，設置至少一個增壓葉片（19)與外 環體（16)之外周緣（16b)連接。 經由上述結構特徵之詳細說明，可清楚看出本發明設 計之特點在於： 1·上下等寬之環體的設置，能使氣流保持軸向及集中 氣流’以利對小物件的散熱。 2.外環體的設置，可提供設增壓葉片空間，藉由壓葉 片作用增加風壓。 3·用機翼形截面當支架可減低氣流之阻力，更增加氣 流之壓力。 ' 4·利用支架的支撐外環體使外環體易定位葉片缺口 中〇 綜上所述，本發明實施例確能達到所預期之使用功效，又其 所揭露之具體構造僅未冑麟關誠品巾，亦未曾公開 於申請前，誠已完全符合專利法之規定與要求，爰依法提出二 型專利之申請，懇請惠予審查。 【圖式簡單說明】 第一圖·本發明第一種實施例葉輪組之立體分解圖。 第二圖：本發明第一種實施例葉輪組之組合圖。 第二圖：本發明第一種實施例葉輪組之剖面圖。 第四圖：習用葉輪組之立體分解圖。 第五圖：習用葉輪組之剖面圖。 8 200928111 【主要元件符號說明】 <本發明>BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an impeller group, particularly a type of air that can be introduced into an impeller group, which stabilizes the flow field and maintains axial and concentrated airflow to improve heat dissipation efficiency. [Prior Art] According to the conventional impeller group (200)', as shown in the fourth and fifth figures, (TW application number 96120690), the impeller group (200) has an impeller (2 turns) and a ring group ( 20b) 'The impeller (20) has a hub (22) and a plurality of blades (21) disposed around the periphery of the hub (22), and an air guiding groove (23) is formed between the blade (21) and the blade (21). 21) The trailing edge is provided with notches (24), (24b); the ring body group (20b) has two inner ring bodies (25) and an outer ring body (26), respectively, the inner ring body (25), and the outer ring body (25) The cross-sectional shape of the ring body (26) is narrow and wide, and the inner ring body (25) and the outer ring body (26) are provided with a bracket (28) connecting the outer circumference (26) of the inner ring body (25). And an inner circumference (26a) of the outer ring body (26), the outer circumference of the outer ring body (26) is provided with a pressurizing blade (29), a combined impeller group (2〇) and a ring body group (20b), The inner ring body (25) and the outer ring body (26) of the ring body group (20b) are sleeved in the notches (24), (24b) of the trailing edge of the blade (21) of the impeller (20), and the inner ring body (25) the flange (27) at the bottom end of the circumference (25a), the bottom end of the cassette hub (22) is positioned, The outer ring body (26) is located in the rear edge section of the air guiding groove (23), and the air guiding groove (23) partitioning the section is an inner and outer air guiding groove (231), (232), and the ring body group ( The bracket (28) of 20b) corresponds to the section of the inner air guiding groove (231), and the pressurized blade (29) of the ring body group (20b) corresponds to the section of the outer air guiding groove (232), according to which, when the impeller The rotation of the group (200) will direct the air from the leading edge of the blade (21) into the guide duct 5 200928111 air duct (23) and blow out to the trailing edge, but the inner ring body (25) of the impeller group (200), The cross-sectional shape of the ring body (26) is narrower and wider than the width. Although it has centrifugal acceleration effect, its airflow is oblique and dilated (as shown by the flow line y shown in Figure 5), which cannot be effective for small objects. Heat dissipation does not keep the airflow axially concentrated. Moreover, the computing speed of electronic devices is getting faster and faster, and the amount of heat generated is also increased. How to increase the heat dissipation performance is an important problem that the industry wants to overcome. SUMMARY OF THE INVENTION In view of the shortcomings of the conventional impeller group, the present inventors have invented and innovated, and designed a ring body having an upper and lower uniformity in cross-sectional shape to keep the airflow of the impeller group axially and concentrated, and to improve the small The heat dissipation efficiency of the object is the main purpose of the design of the invention. In order to achieve the structural features and technical contents of the above object, an "impeller group" is provided, comprising: an impeller and a ring body set, wherein the impeller has a hub and a plurality of blades of the circumference, and an air guiding groove is formed between the blades, and A notch is formed at the trailing edge of the blade; wherein the ring body has two ring bodies, the cross-sectional shape of the ring body is equal to the upper and lower width, and a bracket is connected between the two ring bodies to connect the inner and outer ring bodies, and the outer ring body can be The outer peripheral edge is provided with a supercharging blade, and the impeller and the ring body group are combined, and the trailing edge of the impeller blade is sleeved in the inner and outer ring bodies of the ring body group, and the flange at the bottom end of the inner circumference of the inner ring body is The bottom end of the hub of the cassette impeller is positioned, and the outer ring system is located in the rear section of the air guiding trough, and the air guiding trough partitioning the section is an inner and outer air guiding trough, and the bracket of the ring body group is correspondingly located in the inner air guiding trough In the interval, the pressurized blade of the ring group is correspondingly located between the outer air guiding groove region 6 200928111. Accordingly, the air ring is disposed at the air outlet end of the trailing edge of the air guiding groove to maintain the axial flow and the concentrated air flow. b The advantage of this structural design is that, due to the strictness of the upper and lower width of the section, the airflow is maintained in the axial direction and the airflow of the airflow to ensure the heat dissipation of small objects. [Embodiment] Please refer to the first, second and third figures for an embodiment of the impeller assembly of the present invention. The impeller assembly (100) comprises: ❹ an impeller (10) having a hub (12), and a plurality of blades (11) arranged around the circumference of the hub (12), a wind guiding groove (13) between the blade (Π) and the blade (11), and a rear edge of the blade (11) and a ring body (15), (16) a notch (14a), (14b) having the same cross-sectional shape, a ring group (10b) having an inner ring body (15) and an outer ring body (16), the inner ring body (15) and the outer ring body (16) The cross-sectional shape of the upper and lower widths is such that the airflow maintains the axial and concentrated airflow (as indicated by the flow line y shown in the third figure), wherein the inner ring body (15) has an inner circumference (15a) and an outer circumference ❹ 5b), wherein the outer ring body (16) has an inner circumference (16a) and an outer circumference (16b) 'between the inner ring body (15) and the outer ring body (16), and the bracket (18) is connected to the inner ring body (15). The outer circumference (i5b) and the inner circumference of the outer ring body (16) (16a) 'the cross-sectional shape of the bracket (18) may be a triangle, a square, a diamond, a circle, or other geometric shape with a connecting effect' Inside The inner periphery (15a) of the body (15) is provided with a flange (17) at the bottom end thereof, and the inner and outer ring bodies (15) and (16) are disposed at the notches (14a) and (14b) of the trailing edge of the blade, and the inner ring The inner periphery of the body (15) (15a) is provided with a flange (17) at the bottom end of the casing (12). The bottom end of the clamping hub (12) is combined, and the outer ring body (16) is located at the trailing edge of the air guiding groove (13) by 200928111. The air guiding trough (13) separating the sections is an inner air guiding trough (131) and an outer air guiding trough (132), wherein the bracket (18) is correspondingly located in the trailing edge of each inner air guiding trough (131). At least one pressurized blade (19) may be connected to the outer periphery (16b) of the outer ring body (16) in the outer air guiding groove (132). Through the detailed description of the above structural features, it is clear that the design of the present invention is characterized by: 1. The arrangement of the upper and lower equal width rings enables the airflow to maintain axial and concentrated airflow to facilitate heat dissipation of small objects. 2. The outer ring body can be provided with a pressurized blade space to increase the wind pressure by pressing the blade. 3. Use the airfoil section as the bracket to reduce the resistance of the airflow and increase the pressure of the airflow. 4. The support of the outer ring body of the bracket makes the outer ring body easy to locate the heddle in the blade notch. The embodiment of the present invention can achieve the expected use effect, and the specific structure disclosed is only the Kirin Guan Eslite. The towel has not been disclosed before the application. Cheng has fully complied with the requirements and requirements of the Patent Law, and has filed an application for a Type II patent in accordance with the law. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an impeller group according to a first embodiment of the present invention. Second Figure: A combination of the impeller sets of the first embodiment of the present invention. Second Figure: A cross-sectional view of an impeller assembly of a first embodiment of the present invention. The fourth figure: the exploded view of the conventional impeller group. Figure 5: Sectional view of the conventional impeller group. 8 200928111 [Description of main component symbols] <present invention>
(100) 葉輪組 (10) 葉輪 (l〇b) 環體組 (11) 葉片 (12) 輪轂 (13) 導風槽 (134a 、34b)缺口 (15) 内環體 (16) 外環體 (15a) 内周緣 (15b) 外周緣 (16a) 内周緣 (16b) 外周緣 (17) 凸緣 (18) 支架 (19) 增壓葉片 (131) 内導風槽 (132) 外導風槽 用> (200) 葉輪組 (20) 葉輪 (20b) 環體組 (21) 葉片 (22) 輪轂 (23) 導風槽 (24a、 24b)缺口 (25) 内環體 (26) 外環體 (25a) 内周緣 (26) 外周緣 (26a) 内周緣 (26b) 外周緣 (27) 凸緣 (28) 支架 (29) 增壓葉片 (231) 内導風槽 (232) 外導風槽 (y) 氣流示意線 9(100) Impeller group (10) Impeller (l〇b) Ring group (11) Blade (12) Hub (13) Air guide groove (134a, 34b) Notch (15) Inner ring body (16) Outer ring body ( 15a) Inner circumference (15b) Outer circumference (16a) Inner circumference (16b) Outer circumference (17) Flange (18) Bracket (19) Pressurized vane (131) Inner air duct (132) Outer air duct >gt (200) Impeller set (20) Impeller (20b) Ring set (21) Blade (22) Hub (23) Air duct (24a, 24b) Notch (25) Inner ring (26) Outer ring (25a ) Inner circumference (26) Outer circumference (26a) Inner circumference (26b) Outer circumference (27) Flange (28) Bracket (29) Pressurized vane (231) Inner air duct (232) Outer air duct (y) Airflow line 9