201239204 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明是有關於一種風扇結構，特別是有關於—種可有 效阻止灰塵異物入侵之風扇結構。 【先前彳支術】 [0002] 一般來說，為了要使風扇能具有防塵的效果，往往是在 其内部設計複雜的路徑來防堵灰塵等異物進入，以確保 風扇在惡劣環境下的運作品質。 ' 0 [0003]請參閱第1圖，在習知之風扇結構1之中，扇框10與葉輪 60是藉由彼此對插之方式來阻隔灰塵進入至定子3〇處及/ 或轴承20處。更具體而言，扇框10與葉輪6〇分別是藉由 扇框10基座11之一突出部12與葉輪60延伸之環部62來對 插配置，如第1圖之區域A所示，以阻隔灰屢進入至定子 30之一電路板31處及/或轴承2〇處，進而避免電路板31 及/或軸承20發生損壞。 [0004]然而，風扇結構1會具看一些缺點。.首先，葉輪6〇在運轉 〇 時必須與扇框10保持足夠的間隙。因此，對插配置之扇 框10(或環壁12)與葉輪6〇 (或環部62)可能會造成干涉現 象，進而導致風扇結構丨發生運作異常的情形。再者，由 於此種以扇框10與葉輪60彼此對插來阻隔灰塵入侵之路 徑不是很複雜’故少量或較細小的灰塵仍會入侵至定子 30之電路板31處及/或轴承20處。因此，風扇結構丨所能 達成之防塵效果會非常有限。 【發明内容】 [0005] 100110235 本發明基本上採用如下所詳述之特徵以為了要解決上述 1002017246-0 表單編號A0101 第3頁/共14頁 201239204 之問題。也就是說，依攄本發明之風屬包括一扇框、一 —葉輪。基座設置201239204 VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a fan structure, and more particularly to a fan structure that can effectively prevent the invasion of dust foreign matter. [Previous sacral surgery] [0002] In general, in order to make the fan have a dust-proof effect, it is often designed with a complicated path inside to prevent foreign matter such as dust from entering, so as to ensure the operation quality of the fan in a harsh environment. . Referring to Fig. 1, in the conventional fan structure 1, the fan frame 10 and the impeller 60 are prevented from entering the stator 3's and/or the bearing 20 by interposing each other. More specifically, the fan frame 10 and the impeller 6〇 are respectively arranged by a ring portion 62 in which the protrusion portion 12 of the base 11 of the fan frame 10 and the impeller 60 extend, as shown in the area A of FIG. The barrier ash repeatedly enters one of the circuit boards 31 of the stator 30 and/or the bearing 2〇, thereby preventing damage to the circuit board 31 and/or the bearing 20. [0004] However, the fan structure 1 will have some disadvantages. First, the impeller 6 must maintain sufficient clearance with the frame 10 during operation. Therefore, the fan frame 10 (or the ring wall 12) of the plug-in arrangement and the impeller 6〇 (or the ring portion 62) may cause interference, which may cause the fan structure to malfunction. Moreover, since the path in which the fan frame 10 and the impeller 60 are opposed to each other to block dust intrusion is not complicated, a small amount or fine dust may still invade the circuit board 31 of the stator 30 and/or the bearing 20. . Therefore, the dustproof effect that the fan structure can achieve is very limited. SUMMARY OF THE INVENTION [0005] The present invention basically employs the features detailed below in order to solve the above problem of 1002017246-0 Form No. A0101 Page 3 of 14 201239204. That is to say, the wind according to the invention includes a frame and an impeller. Pedestal setting
基座、一定子、一轉子、一防塵蓋及 於扇框内，基座之外緣具有一環壁， ’遠環壁圍繞定子，轉子鼾鹿於定早 ，々從益逆枨％艰璧，其中該環壁及該 子及該轉子，該葉輪耦合於轉子，且 轉子，s亥葉輪由轉子帶動其旋轉。 擔牆’擔牆係相尉於防塵蓋設置， [0006]其中該葉輪更包括— 且擔牆及防塵蓋之間具有_ ; «輪包括-輪較及複 數個扇葉，該複數個扇葉繞設於該輪轂外圍，該擋牆由 邊輪轂向該轉子之方向延伸，該擋牆之一端連接該輪 轂，另一端向下延伸至該轉子上方，與該轉子間具有間 隙’該防塵蓋及該擋牆皆為環形，且彼此對應設置。 [0007] 轉子及葉輪之間具有—間隙，基座之環壁設置於轉子及 葉輪間之間隙。防塵蓋之__端於轉子之側向連接環壁， .. . ·! ' 另一端延伸至轉子之上方，防塵蓋與環壁為分離之構件 ，較佳以相互扣接方式連接。 [0008] 轉子較佳包括一轉軸、一鐵殼及一設置於鐵殼内之磁環 。疋子内具有一軸管，轉軸係以轉動之方式套設於軸管 中’定子設置於軸管與環壁之間，該軸管内具有至少一 軸承，用以承接該轉轴，該轴管設置於該基座中央，與 該基座為一體成型。另外，該扇框、該基座及該環壁較 佳為一體成型。 [0009] 同時，根據本發明之風扇結構，更包括一結合元件，係 100110235 表單編號A0101 第4頁/共14頁 1002017246-0 201239204 設置於該轉軸與該鐵殼之間，用以結合固定該轉轴與該 鐵殼，該鐵殼較佳為圍繞於該定子外部。 [0010] 該結合元件較佳以塑膠射出成型之方式成型於該轉轴與 該轉子之間，該葉輪係藉由該結合元件連接於該轉子。 [0011] 該結合元件具有一結合柱，該葉輪更具有一結合孔，以 及該結合柱係穿過該結合孔而抵接於該葉輪，該結合柱 較佳、熔接於該結合孔。 [0012] 為使本發明之上述目的、特徵和優點能更明顯易懂，下 〇 文特舉較佳實施例並配合所附圖式做詳細說明。 【實施方式】 [0013] 茲配合圖式說明本發明之較佳實施例。 [0014] 請參閱第2圖及第3圖，本實施例之風扇結構100主要包括 有一扇框110、一基座111、一定子130、一轉子、一防 塵蓋170及一葉輪180。轉子較佳包括一轉轴140、一鐵 殼151及一設置於鐵殼151内之磁環152。定子130内具有 q 一軸管113，定子130設置於軸管113與環壁112之間，該 軸管内具有至少一軸承，用以承接該轉軸，在此，軸承 120可以是一含油軸承或一滚珠軸承的形式。該軸管113 設置於該基座111中央，與該基座111可為分離構件或一 體成型。另外，該扇框110、該基座111及該環壁112較 佳為一體成型。 [0015] 基座111設置於扇框110内，基座111之外緣具有一環壁 112，定子130設置於基座111上，該環壁112圍繞定子 130，轉軸140係以轉動之方式套設於定子130中，轉子 100110235 表單編號 A0101 第 5 頁/共 14 頁 1002017246-0 201239204 對應於定子130設置，並與定子13〇相互產生磁作用力， 防塵蓋170連接於環壁112，其中該環壁112及該防塵蓋 170係圍繞該定子13〇、該磁環152及該鐵殼151，該葉輪 180耦合於該轉子，且該葉輪18〇包覆定子13〇及轉子， 該葉輪180由轉子帶動其旋轉。 [0016] [0017] [0018] [0019] 其中该葉輪180更包括一擋牆181，播牆Μ〗係相對於防 塵蓋170設置，且擋牆181及防塵蓋17〇之間具有間隙； 該葉輪180包括一輪轂184及複數個連接於輪轂184之扇 葉183，該複數個扇葉183繞設於該輪轂184外圍，該擋 牆181由該輪轂184向轉子之鐵殽151之方向延伸，該 擋牆181之一端連接該輪轂184，另一端向下延伸至轉子 之鐵殼151上方，與鐵殼151間具.有間隙，該防塵蓋17〇 及該擋牆1 81皆為環形，且彼此對應設置=。 轉子鐵殼151及葉輪180之間具有一間隙，基座ιη之環 壁112向上延伸圍繞該基座m，：具設置於轉子鐵殼Hi 及葉輪180間之間隙。防塵蓋17 P舞一螭連接環壁丨i 2， 另一端延伸至轉子之上方，哮麈義土70與環壁112較佳以 扣接方式連接。 鐵殼151是藉由結合元件160來連接於轉軸丨4〇。換句話 說，結合元件160是成型於轉轴14〇與鐵殼151之間，以 結合固定轉軸140與鐵殼151。值得注意的是，在本實施 例之中，結合元件160可以塑膠射出成型之方式來成型於 轉軸140與鐵殼151之間。 此外，葉輪1 8 0亦是藉由結合元件1 6 0來連接於轉子，結 100110235 表單編號A0I01 第6頁/共14頁 1002017246-0 201239204 合元件160具有複數個結合枉161，葉輪180具有複數個 結合孔182(如第3圖所示）’結合元件iGO之結合柱161乃 是穿過葉輪180之結合孔182而抵接於葉輪180(如第2圖 所示）。然後，結合柱161可以炫接於結合孔182，以達到 轉子與葉輪丨80之間的結合穩固性。 [0020] Ο [0021] 如上所述，環壁11 2及防塵蓋是圍繞著軸承120、定 子130及轉子，且搭配往下延伸之擋牆181，使得灰塵等 異物之進入定子的路徑更為迂迴化’因而可以阻隔外界 灰塵等異物進入定子130之電路板131處及/或軸承12〇處 ’以避免電路板131及/或軸承12 0發生損壞。 Ο 此外，本實施例所揭露之風扇結構1G0除了可以具有絕佳 的防塵效果外，其還可以具有其他的優點。舉例來說， 由於結合元件160讦以塑膠射出成型之方式成型於轉轴 140與轉子之間，故轉轴140與轉子之運轉平衡效果會相 當優異。此外，由於風扇結構100是利用塑耀射出成型之 結合元件160來結合轉軸、轉子與葉輪180，故風扇 結構1 0 0之整體製造成本能被降低。另外，在本實施例所 揭露之風扇結構100之中，扇框110與葉輪180之間的干 涉現象可以被避免。換言之，風扇結構100能在具有絕佳 防塵效果的同時保持順暢的運作。 [0022] 雖然本發明已以較佳實施例揭露於上，然其並非用以限 定本發明，任何熟習此項技藝者，在不脫離本發明之精 、申和範圍内’备可作些許之更動與潤飾，因此本發明之 保護範圍當視後附之巾請相_所界定者為準。 100110235 【圖式簡單說明】 表單編號A0101 第7頁/共14頁 1002017246-0 201239204 [0023] 第1圖係顯示一種習知之風扇結構之剖面示意圖； [0024] 第2圖係顯示本發明之風扇結構之剖面示意圖；以及 [0025] 第3圖係顯示根據第2圖之分解示意圖。 【主要元件符號說明】 [0026] 1、100~風扇結構 [0027] 1 0、11 0 〜扇框 [0028] 11、111〜基座 [0029] 1 2〜突出部 [0030] 20、120〜軸承 [0031] 30、130 〜定子 [0032 ] 31、131 ~ 電路板 [0033] 60、180〜葉輪 [0034] 62~環部 [0035] 11 2〜環壁 [0036] 11 3 ~ 轴管 [0037] 1 4 0〜轉軸 [0038] 151〜鐵殼 [0039] 152〜磁環 [0040] 1 6 0〜結合元件 [0041] 161~結合柱 100110235 表單編號A0101 第8頁/共14頁 1002017246-0 201239204 [0042] 170〜環形防塵蓋 [0043] 181 ~環形擋牆 [0044] 182〜結合孔 [0045] 1 8 3〜扇葉 [0046] 184〜輪轂 〇 ❹ 100110235 表單編號A0101 第9頁/共14頁 1002017246-0A pedestal, a stator, a rotor, a dust cover and a fan frame, the outer edge of the base has a ring wall, and the far ring wall surrounds the stator, and the rotor elk is fixed early, and the 枨 々 枨 枨 枨 枨 璧 璧Wherein the ring wall and the sub-machine and the rotor, the impeller is coupled to the rotor, and the rotor, the impeller is driven by the rotor to rotate. The wall of the wall is set in the dust cover, [0006] wherein the impeller further includes - and there is a _ between the wall and the dust cover; the wheel includes a wheel and a plurality of blades, the plurality of blades Surrounding the periphery of the hub, the retaining wall extends from the side hub toward the rotor, one end of the retaining wall is connected to the hub, and the other end extends downwardly to the rotor, and has a gap between the rotor and the dust cover The retaining walls are all annular and are arranged corresponding to each other. [0007] There is a gap between the rotor and the impeller, and the ring wall of the base is disposed between the rotor and the impeller. The __ end of the dust cover is connected to the side wall of the rotor, and the other end extends to the upper side of the rotor, and the dust cover and the ring wall are separated members, preferably connected to each other. [0008] The rotor preferably includes a rotating shaft, an iron shell, and a magnetic ring disposed in the iron shell. The raft has a shaft tube, and the rotating shaft is sleeved in the shaft tube in a rotating manner. The stator is disposed between the shaft tube and the ring wall. The shaft tube has at least one bearing for receiving the rotating shaft, and the shaft tube is disposed. In the center of the base, the base is integrally formed. In addition, the fan frame, the base and the ring wall are preferably integrally formed. [0009] Meanwhile, the fan structure according to the present invention further includes a coupling component, the system 100110235, the form number A0101, the fourth page, the total number of pages, the number of the hinges, and the iron shell, for fixing and fixing the same. The rotating shaft and the iron shell preferably surround the outside of the stator. [0010] The coupling member is preferably formed by plastic injection molding between the rotating shaft and the rotor, and the impeller is coupled to the rotor by the coupling member. [0011] The coupling member has a coupling post, and the impeller further has a coupling hole, and the coupling post passes through the coupling hole to abut the impeller, and the coupling post is preferably welded to the coupling hole. The above described objects, features and advantages of the present invention will become more apparent from the description of the appended claims. [Embodiment] A preferred embodiment of the present invention will be described with reference to the drawings. [0014] Referring to FIG. 2 and FIG. 3, the fan structure 100 of the present embodiment mainly includes a frame 110, a base 111, a stator 130, a rotor, a dustproof cover 170, and an impeller 180. The rotor preferably includes a rotating shaft 140, an iron casing 151 and a magnetic ring 152 disposed in the iron casing 151. The stator 130 has a q-axis tube 113. The stator 130 is disposed between the shaft tube 113 and the ring wall 112. The shaft tube has at least one bearing for receiving the rotating shaft. Here, the bearing 120 can be an oil bearing or a ball. The form of the bearing. The shaft tube 113 is disposed at the center of the base 111, and the base 111 may be a separate member or integrally formed. Further, the frame 110, the base 111, and the ring wall 112 are preferably integrally formed. The base 111 is disposed in the fan frame 110. The outer edge of the base 111 has a ring wall 112. The stator 130 is disposed on the base 111. The ring wall 112 surrounds the stator 130, and the rotating shaft 140 is sleeved in a rotating manner. In the stator 130, the rotor 100110235 form number A0101 page 5 / 14 pages 1002017246-0 201239204 corresponds to the stator 130, and generates a magnetic force with the stator 13 〇, the dust cover 170 is connected to the ring wall 112, wherein the ring The wall 112 and the dust cover 170 surround the stator 13 , the magnetic ring 152 and the iron shell 151 . The impeller 180 is coupled to the rotor, and the impeller 18 encloses the stator 13 and the rotor. The impeller 180 is composed of a rotor. Drive it to rotate. [0019] [0019] [0019] wherein the impeller 180 further includes a retaining wall 181, which is disposed relative to the dust cover 170, and has a gap between the retaining wall 181 and the dust cover 17〇; The impeller 180 includes a hub 184 and a plurality of blades 183 connected to the hub 184. The plurality of blades 183 are disposed around the periphery of the hub 184. The retaining wall 181 extends from the hub 184 toward the iron 151 of the rotor. One end of the retaining wall 181 is connected to the hub 184, and the other end extends downwardly to the iron shell 151 of the rotor. There is a gap between the retaining wall 151 and the iron shell 151. The dustproof cover 17 and the retaining wall 81 are annular. Set corresponding to each other =. There is a gap between the rotor shell 151 and the impeller 180, and the ring wall 112 of the base member extends upwardly around the base m, and has a gap disposed between the rotor shell Hi and the impeller 180. The dust cover 17 P is connected to the ring wall 丨i 2, and the other end extends above the rotor, and the slinger 70 and the ring wall 112 are preferably connected in a snap-fit manner. The iron casing 151 is coupled to the rotating shaft 〇4 by the coupling member 160. In other words, the coupling member 160 is formed between the rotating shaft 14〇 and the iron casing 151 to bond the fixed rotating shaft 140 and the iron casing 151. It should be noted that in the present embodiment, the coupling member 160 can be molded between the rotating shaft 140 and the iron casing 151 by plastic injection molding. In addition, the impeller 180 is also connected to the rotor by the coupling element 160. The junction 100110235 Form No. A0I01 Page 6 / Total 14 Page 1002017246-0 201239204 The component 160 has a plurality of combinations 枉 161, the impeller 180 has a plurality The coupling holes 182 (as shown in Fig. 3) are joined to the impeller 180 (as shown in Fig. 2) through the coupling holes 182 of the impeller 180. Then, the binding post 161 can be spliced to the coupling hole 182 to achieve the bonding stability between the rotor and the impeller dam 80. [0021] As described above, the ring wall 11 2 and the dust cover surround the bearing 120, the stator 130, and the rotor, and are matched with the retaining wall 181 extending downward, so that the path of foreign matter such as dust entering the stator is further increased. The rounding is thus able to block foreign matter such as dust from entering the circuit board 131 of the stator 130 and/or at the bearing 12' to avoid damage to the circuit board 131 and/or the bearing 120. In addition, the fan structure 1G0 disclosed in this embodiment can have other advantages in addition to excellent dustproof effect. For example, since the coupling member 160 is formed between the rotary shaft 140 and the rotor by plastic injection molding, the balance of the operation of the rotary shaft 140 and the rotor is relatively excellent. Further, since the fan structure 100 is combined with the rotating shaft, the rotor and the impeller 180 by the plastic injection molding combined member 160, the overall manufacturing cost of the fan structure 100 can be reduced. In addition, in the fan structure 100 disclosed in the embodiment, the interference between the fan frame 110 and the impeller 180 can be avoided. In other words, the fan structure 100 can maintain smooth operation while having excellent dustproof effect. The present invention has been disclosed in its preferred embodiments, and is not intended to limit the scope of the invention, and may be made by those skilled in the art without departing from the scope of the invention. Changes and retouching, therefore, the scope of protection of the present invention is subject to the definition of the attached towel. 100110235 [Simple description of the drawing] Form No. A0101 Page 7 / 14 pages 1002017246-0 201239204 [0023] Fig. 1 is a schematic cross-sectional view showing a conventional fan structure; [0024] Fig. 2 shows a fan of the present invention A schematic cross-sectional view of the structure; and [0025] Figure 3 shows an exploded view according to Figure 2. [Description of main component symbols] [0026] 1, 100~ fan structure [0027] 1 0, 11 0 ~ fan frame [0028] 11, 111 ~ pedestal [0029] 1 2 ~ protrusion [0030] 20, 120~ Bearing [0031] 30, 130 ~ stator [0032] 31, 131 ~ circuit board [0033] 60, 180 ~ impeller [0034] 62 ~ ring part [0035] 11 2 ~ ring wall [0036] 11 3 ~ shaft tube [ 0037] 1 4 0~ shaft [0038] 151~ iron shell [0039] 152~ magnetic ring [0040] 1 6 0~ joint element [0041] 161~ joint column 100110235 Form No. A0101 Page 8 / Total 14 Page 1002017246- 0 201239204 [0042] 170~ ring dust cover [0043] 181 ~ ring retaining wall [0044] 182~ joint hole [0045] 1 8 3~ fan blade [0046] 184~ wheel hub 〇❹ 100110235 Form No. A0101 Page 9 / Total 14 pages 1002017246-0