M394689 五、新型說明： 【新型所屬之技術領域】 本創作係涉及一種散熱風扇，特別是指其扇葉具有防 脫限位結構之創新型態設計者。 【先前技術】 按，散熱風扇結構設計上，其扇葉係藉由其内部轉子 轴心組合於基座定子組上呈可旋轉狀態。 —傳統散熱風扇其扇葉内部轉子軸心組合於基座定子組 的定，方式，多數採用扣環加以嵌扣固定此種扣環固定 方式牛固性極佳，但因為存在組配困難、不利於小型化設 汁之缺弊，所以後續隨著散熱風扇之輕薄化設計發展趨勢 ’逐漸被磁吸定位型態或其他簡易定位型態所取代。 然而，前述磁吸定位型態（或其他簡易定位型態）雖 有其優勢’但其美中不足之處’㉟常是出現在散熱風扇成 :出廠後到裝配於產品設備之前，此期間由 歷經包裝、輸送、運輸、品檢等作業絲，而這些; 裎中道散熱風扇可能會因為過度劇烈 動行為 ，即導致其扇葉内部轉子軸心與基座定子組之間有= 脫：晴形產生’而這樣的鬆脫並非損冑，僅： : = : =於吸住狀態而已，但因為扇葉鬆脫t 風扇的蓋板，散献外：而摩擦碰觸到散熱 葉摩擦蓋板而產生；常啟動時1因為旋轉的扇 β 生異*噪音，甚至造成無謂的損壞。 疋以針對上述習知散熱風扇結構所 如何開發一種更具理想實用性之創新結構，實使丄 盼，亦係相關業者須努力研發突破之目標及方向吏用者所企 有鑑於此，創作Α 與設計經驗，針^ =於事；關產品之製造開發 ;之目標詳加3又汁與審慎評估後， 3 M394689 終得一確具實用性之本創作 【新型内容】 本創作之主要目 脫限位結構’其所欲 種更具理想實用性之 破者；所述散熱風扇 座包括邊框、出風側 子組樞組於定子組上 部以及間隔環設於該 包括有内側段以及外 ，該蓋板開設有空氣 本創作解決問題 内側間隔處並藉由肋 限位環具有朝扇葉所 狀面係與扇葉之葉片 葉之中央殼部；藉此 術而言，俾可藉由所 可能鬆脫方向產生一 脫狀態、有效防止扇 :’係在提供-種散熱風扇之 :決之問題點，係針對如何研發= 新式散熱風扇結構為目標加以創 ，括基座、扇葉、蓋板所構成；該基 及疋子組，該扇葉係藉由其内部一 呈可旋轉狀態，該扇葉包括一中央殼 中央殼部周邊之多數葉片，所述葉 側端；所述蓋板組合於該基座邊框上 導入口對應於扇葉上方； 之技術特點，主要在於該空氣 條連設定位有-防脫限位環 在方向曲折内伸之一環狀面，且該環 内側段呈間隔相對狀態，並趨近 創新獨特設計，使本創作對照先前技 述防脫限位環的設置，以對該扇葉之 限位作用，進而達到有效限制扇葉鬆 葉碰撞蓋板之防護效益與實用進步^ 【實施方式】 請參閱第1 之扇葉防 脫限位結構 3、4圖所示，係本創作散熱 明之用，在專；c施例，惟此等實施例僅供說 扇a係包括m並：受此結構之限制°，述散熱風 該基座1Q包括葉2°、一蓋板30所構成；其中 一定子组Π 邊框1、一出風側12以及位於中間區域之 、' ，該扇葉20係藉由其内部一轉子組（圖面省略 4 M394689 示）樞組於定子組13上呈可旋轉狀態該扇葉2〇包括一 央邊部u以及間隔環設於該中央毂部21周邊之多數葉片 j ’所述葉片22包括有内侧段22〇以及外側㈤221 ;所述 盍板30組口於該基座1〇邊框！ i上，該蓋板開設有空氣導 入口 31對應於扇葉20上方；且其中，該空氣導入口31内側 間隔處並藉由肋條32連設定位有一防脫限位環33，該防脫 限位環33具有朝扇葉20所在方向曲折内伸之/環狀面331 ，且該環狀面331係與扇葉20之葉片22内侧段22〇呈間隔 相對狀態，並趨近於該扇葉20之中央殼部21。 其中’所述空氣導入口 31、肋條32、防脫限位環33三 者係藉由該蓋板30本身結構一體成型者。 其中’該防脫限位環33之斷面型態係可設成一倒l型 派彎或直角斷面型態（詳如第5圖所揭）；或者如第6圖 所揭之防脫限位環33B ，其斷面型態係設成垂直的一字斷 面型態者。 其中，如第5圖所示，該扇葉20之各該葉片22内側段 220係設有一斜邊222與該防脫限位環33之環狀面331相 對應’而當該扇葉20朝蓋板30方向鬆脫位移時，係透過葉 片22之斜邊222以減少扇葉20與蓋板30接觸時之摩擦而達 到降低異常噪音之特點。 藉由上述結構組成設計’本創作所揭散熱風扇A之核 心設計，主要在於該空氣導入口 31内側間隔處藉由肋條32 連設定位有所述防脫限位環33之技術特點，所述防脫限位 環33具有朝扇葉20所在方向曲折内伸之環狀面331 ，且該 環狀面331係與扇葉20之葉片22内側段220呈間隔相對狀 態，藉此，當該扇葉20因異常或不當之外力作用而朝蓋板 3〇方向鬆脫位移時，能夠透過該防脫限位環33之環狀面3 31加以即時擋阻而不致持續鬆脫，進而能夠達到有效限制 扇葉20鬆脫狀態、有效防止扇葉20碰撞蓋板30之防護效益 5 與實用進步性 增進之事 所揭「散 入口内側 設計，使 於該防脫 該環狀面 俾可對該 因異常或 透過該防 ’進而能 撞蓋板之 葉防脫 設定位 【先前 朝扇葉 葉片内 鬆脫方 作用而 環狀面 限制扇 實用進 功效說明： 本創作功效 本創作 由該空氣導 之創新獨特 構而言，由 之環狀面， 態；藉此， ’當該扇葉 移時，能夠 致持續鬆脫 防止扇葉碰 實如下： 熱風扇之扇 間隔處並連 本創作對照 限位環具有 係與扇葉之 扇葉之可能 不當之外力 脫限位環之 夠達到有效 防護效益與 限位結構」 有所述防脫 技術】所提 所在方向曲 側段呈間隔 向產生一限 朝蓋板方向 加以即時擋 葉鬆脫狀態 步性。 主要藉 限位環 習知結 折内伸 相對狀 位作用 鬆脫位 阻而不 、有效 本創作可產生之新功效如下： 立 構設Ϊ由：Ϊ 2之各該葉片内侧段係設有所設斜邊之結 u β β ^扇葉朝蓋板方向鬆脫位移時，係透過葉片之 之特點。巧盍板接觸時之摩擦而達到降低異常噪 雖透ϋίϊϋΐϊ:者係藉以具體說明本料，且文中 之專利範圍；、孰:仃說明，當不能以此限定本新型創作 之精神與原則^ :項技術領域之人士當可在瞭解本創作 此等變更鱼修ί行變更與修改”到等效目的，而 定之範疇/中f文备應涵蓋於如后所述申請專利範圍所界 6 M394689 【圖式簡單說明】 第1圖：本創作散熱風扇之組合立體圖。 第2圖：本創作散熱風扇之分解立體圖。 第3圖：本創作散熱風扇之局部剖視立體圖。 第4圖：本創作散熱風扇之組合剖視平面圖。 第5圖：承第4圖B之放大示意圖。 第6圖：本創作之防脫限位環型態另一實施例圖。 【主要元件符號說明 A 散熱風扇 10 基座 11 邊框 12 出風側 1 3 定子組 2 0 扇葉 2 1 中央殼部 2 2 葉片 220 内側段 -2 2 1 外側端 •222斜邊 3 0 蓋板 3 1 空氣導入口 3 2 肋條 3 3 防脫限位環 3 3 B 防脫限位環 331 環狀面 7M394689 V. New description: [New technical field] This creation relates to a cooling fan, especially to an innovative designer whose blade has an anti-drop structure. [Prior Art] According to the design of the cooling fan structure, the blade is rotatably coupled to the base stator set by its internal rotor axis. - The traditional cooling fan has its inner rotor core combined with the stator stator set. Most of them adopt the buckle to be fastened. The buckle is fixed. The cow solidity is excellent, but it is difficult to assemble. In the miniaturization of the lack of juice, so the follow-up with the development trend of the thin and light cooling fan 'gradually replaced by magnetic positioning type or other simple positioning type. However, the aforementioned magnetic positioning type (or other simple positioning type) has its advantages 'but its inadequacies' 35 often appear in the cooling fan: from the factory to the assembly equipment before, during this period by the packaging , transportation, transportation, quality inspection and other work threads, and these; the middle of the cooling fan may be due to excessive violent behavior, that is, the internal rotor axis of the blade and the base stator group have = off: clear shape 'And such looseness is not damaging, only: : = : = is in the state of suction, but because the fan leaves loose t the cover of the fan, the outside of the cover: and the friction touches the friction cover of the heat sink ; often start 1 because the rotating fan β is different * noise, and even cause unnecessary damage. In view of the above-mentioned conventional cooling fan structure, how to develop an innovative structure that is more ideal and practical, and it is also hoped that the relevant industry will have to work hard to develop the breakthrough goal and direction. With the design experience, the needle ^ = in the matter; the production and development of the product; the goal is detailed 3 after the juice and prudent evaluation, 3 M394689 will have a practical and practical creation [new content] The main eye of this creation The limiting structure is configured to be more desirable and practical. The cooling fan base includes a frame, an outlet side sub-group pivot group at an upper portion of the stator group, and a spacer ring disposed on the inner portion and the outer portion. The cover is provided with air to solve the problem at the inner spacing and the rib-retaining ring has a central shell portion facing the blade-like surface and the blade of the blade; thereby, by way of example, The loosening direction produces a decoupling state, effectively preventing the fan: 'Being providing a kind of cooling fan: the problem is solved, aiming at how to develop = new cooling fan structure, including base, fan blade, cover Constructed; the base and the set of blades, the blade is rotatable by an inner portion thereof, the blade includes a plurality of blades around a central shell portion of the central shell, the side ends of the leaves; The introduction port on the frame of the base corresponds to the top of the fan blade; the technical feature is mainly that the air strip is connected to the set position, and the anti-off-stop ring extends in an annular shape in the direction, and the inner side of the ring is spaced apart. Relative state, and approaching the unique design of innovation, this book is compared with the setting of the previous technical anti-off-limit ring to limit the position of the fan blade, thereby achieving the effective protection effect of the fan blade leaf collision cover plate. Practical progress ^ [Embodiment] Please refer to the first fan blade anti-delimitation structure 3, 4, which is used for the purpose of heat dissipation, in the case of special; c, but these examples are only for fan a The system includes m and is limited by the structure. The pedestal 1Q includes a leaf 2° and a cover plate 30; wherein a certain sub-group Π frame 1, an air outlet side 12, and an intermediate portion ', the blade 20 is based on a rotor group inside it (Figure Omit 4 M394689 shows that the pivot group is rotatable on the stator set 13 . The blade 2 includes a central edge portion u and a plurality of blades j ' spaced apart from the periphery of the central hub portion 21 Section 22〇 and the outer side (five) 221; the set of 30 jaws on the base 1 frame! The cover plate is provided with an air introduction port 31 corresponding to the upper portion of the blade 20; and wherein the air introduction port 31 is spaced apart at the inner side and is provided with a retaining ring 33 by the rib 32. The bit ring 33 has a toroidal surface 331 extending inwardly in the direction of the blade 20, and the annular surface 331 is spaced apart from the inner segment 22 of the blade 22 of the blade 20 and approaches the blade 20 The central shell portion 21. Among them, the air introduction port 31, the rib 32, and the retaining ring 33 are integrally formed by the structure of the cover 30 itself. Wherein the section of the anti-off-stop ring 33 can be set to an inverted l-shaped bend or a right-angled profile (as detailed in Fig. 5); or as shown in Fig. 6 The limit ring 33B has a sectional shape of a vertical one-word profile. Wherein, as shown in FIG. 5, the inner side 220 of the blade 22 of the blade 20 is provided with a beveled edge 222 corresponding to the annular surface 331 of the anti-detachment stop ring 33. When the cover 30 is loosely displaced, the oblique edge 222 of the blade 22 is transmitted to reduce the friction between the blade 20 and the cover 30 to reduce the abnormal noise. The core design of the cooling fan A disclosed in the present invention is mainly characterized in that the inner side of the air introduction port 31 is provided with the technical feature of the anti-detachment limit ring 33 by the rib 32. The retaining ring 33 has an annular surface 331 extending inwardly in the direction of the blade 20, and the annular surface 331 is spaced apart from the inner portion 220 of the blade 22 of the blade 20, whereby the blade When the 20 is loosely displaced in the direction of the cover 3 due to an abnormality or an improper external force, the annular surface 31 of the retaining ring 33 can be immediately blocked without being continuously released, thereby achieving an effective limit. The fan blade 20 is loosened, and the protective effect of the blade 20 colliding with the cover plate 30 is effectively prevented. 5 The effect of the practical advancement is revealed, "the inner side of the diffuser is designed so that the annular face can be prevented from being abnormal. Or through the anti-' and then can hit the leaf of the cover to prevent the set position [previously the loosening side of the blade leaves and the annular surface to limit the fan to the effect of the effect: This creative effect is created by the air. Construct By the annular surface, the state; thereby, 'When the blade moves, it can cause continuous loosening to prevent the blade from colliding as follows: The fan spacing of the hot fan and the creation of the limit ring have a system and a fan The blade of the leaf may be improperly removed from the limit ring to achieve effective protection benefit and limit structure. The anti-off technology is provided. The direction of the curved side is in the direction of the cover. The leaf retaining state is stepped. The main function of the restriction is that the inner part of the blade can be created by the following: The knot of the hypotenuse u β β ^ when the blade is loosely displaced toward the cover plate, is characterized by the passage of the blade. The friction between the slabs and the slabs is reduced to reduce the abnormal noise. Although 者 ϊϋΐϊ 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者Persons in the technical field may understand the changes and modifications of the fish modification to the equivalent purpose, and the scope/medium document shall be covered by the scope of the patent application as described later. 6 M394689 [ Brief description of the drawing] Fig. 1 is a perspective view of the combination of the cooling fan of the present invention. Fig. 2 is an exploded perspective view of the cooling fan of the present invention. Fig. 3 is a partial cross-sectional perspective view of the cooling fan of the present invention. A sectional view of the combination of the fan. Fig. 5: an enlarged schematic view of Fig. 4B. Fig. 6: Another embodiment of the anti-off-limit ring type of the present invention. [Main component symbol description A cooling fan 10 base Seat 11 Frame 12 Wind side 1 3 Stator group 2 0 Fan 2 1 Central shell 2 2 Blade 220 Inner section - 2 2 1 Outer end • 222 Bevel 3 0 Cover 3 1 Air inlet 3 2 Rib 3 3 Anti-detachment limit ring 3 3 B Anti-detachment limit ring 331 annular surface 7