M287571 1 八、新型說明： 【新型所屬之技術領域】 本創作係關於-種離心式風扇，特別是一種可防止塵埃 • 異物進入的離心式風扇。 、 、 【先前技術】 .增加隨技：H’人們對於各種戶外電子設備的依賴性亦隨之 m ^ 《電子設備運作時，其内部的元件會產生高献， 偶若無法及時將熱導出電子設備，則容易產生過熱的問題。… 出 >二==熱問題’ f知係在該電子設備之通風口處加設如第 。 ^將忒電子設備所產生之熱強力排 2參考第1圖’離心式風扇_係由—轉子112及—定子120 轉Γ」:2係由底部為圓盤的—殼體104 = 該殼體104内之鐵殼106、位於鐵殼⑽内 ===殼體104中心的轉軸u。所構成。該定㈣ 盥線圈118、圍設於套筒周緣的線圈組114以及 電連接的電路板116所構成，其中該轉子ιΐ2係藉由 4軸u〇谷置於該套筒内的方式而蚊子m相接合。 子二t之平==1〇0在組裝上存在有一定之公差且為使轉 與座難:頂千^頂在平疋面子^Γ定轉存因在此有殼雜104底部（底平面） 隙雖然有助於離心式風扇⑽之 1一疋尺寸之間隙。此間 法在H 離心式風扇1〇0内部零件暴露在外界中，而無 在= 或靜止時防止水氣、塵埃、異物等外物進入。 造2、塵埃、異物等外物進人離心式風扇_内時，_ “離心式風扇i。。運轉不順、耗電增加，重則導致離二 5 M287571 116的電子元件短路、燒毀。 100停止運轉、電路板 【新型内容】 因此，為解決上述問題，本創作係提出一種離 不妨礙組裝的情形下，防止外物進入。 几扇’以在 為此，本創作係提供-種離心式風扇係包括—殼體 Γ二牆二一座體。該殼體至少具有一環設於該殼體周緣的： Μ體3亥底盤上。該環牆延伸突出於該底盤底面，該 二體、《扇茱及該環牆係構成—轉子。該座體用以承載 該座體側壁係與該環牆對應而圍繞定義出一容置空間。/M287571 1 VIII. New description: [New technical field] This creation is about a centrifugal fan, especially a centrifugal fan that prevents dust and foreign matter from entering. , [Previous technology]. Increase the technology: H' people's dependence on various outdoor electronic devices is also accompanied by m ^ "When the electronic device is operating, its internal components will produce high contribution, even if it is impossible to export the heat in time Equipment is prone to overheating problems. ... out > two == thermal problem' f know that the vents of the electronic device are added as in the first. ^ Refer to Figure 1 'Centrifugal Fan _---Rotor 112 and------Rotor 120" for the thermal power generation 2 generated by the electronic equipment: 2 is the bottom of the disk - the housing 104 = the housing The iron shell 106 in the 104 is located in the iron shell (10) === the shaft u in the center of the casing 104. Composition. The fixed (four) 盥 coil 118, the coil group 114 surrounding the circumference of the sleeve, and the electrically connected circuit board 116, wherein the rotor ι 2 is placed in the sleeve by the 4-axis u 而 valley and the mosquito m Engaged. The sub-two t flat = = 1 〇 0 has a certain tolerance in the assembly and is difficult to make the rotation and the seat: the top thousand ^ top in the flat surface ^ Γ 转 因 因 因 因 因 因 因 因 因 因 因 因The gap contributes to the gap of the size of the centrifugal fan (10). In this method, the internal parts of the H centrifugal fan 1〇0 are exposed to the outside, and no foreign matter such as moisture, dust, foreign matter, etc. is prevented when = or at rest. When the foreign objects such as 2, dust, and foreign objects enter the centrifugal fan _, _ "Centrifugal fan i. The operation is not smooth, the power consumption increases, and the electronic components that are separated from the 2 5 M287571 116 are short-circuited and burned. 100 stops running. Circuit board [new content] Therefore, in order to solve the above problems, the author proposes to prevent the entry of foreign objects without hindering the assembly. Several fans are providing a centrifugal fan system for this purpose. The utility model comprises a casing, a second wall and a second body. The casing has at least one ring disposed on the periphery of the casing: a body 3 chassis. The ring wall extends to protrude from the bottom surface of the chassis, the two bodies, the fan And the ring wall system constitutes a rotor. The seat body is used to carry the seat body side wall system corresponding to the ring wall to define an accommodation space.
上述本創作之離^式風扇中，該容置空間係被該環 被該座體側壁所圍繞。 吓固、兒A 综上所述，本創作可以藉由外加的環牆結構與座體的相互配 接’而大幅縮小風扇内部it件與外界接觸的間隙，進而達到防止塵 埃、水氣、外物進入風扇内部的效果。 為讓本創作之上述和其他目的、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】 第2A圖係繪示本創作離心式風扇400的剖面示意圖。第2B圖 係繪示第2A圖的***圖。本創作之離心式風扇4〇〇係由一轉子2〇〇 及一定子300所組成，該轉子200係由多個扇葉2〇2、一磁鐵2〇6、 一轉軸208、一殼體214、多個氣牆產生結構212及一環牆2ι〇所 構成。該定子300係由定子磁極302、座體312及電路板3〇4所 成〇 該殼體214係為該轉子200的主體結構，例如是中間部分為一 中空筒狀結構體，並於筒狀結構的開口周緣朝外形成環狀底盤:該 殼體2U之材質可以是塑膠、橡膠、金屬、碳纖維、玻璃纖維或= 6 M287571 210係朝外延伸突出該環狀底盤之底面2ι6，具體而言， %蹁210係軸向突出該底面216，或斜向突出於該底面aw之外。 4裒回210可以與该殼體2丨4 一體成形，也可以利用組裝的方式接 合於該殼體214上。該環牆21〇之材質可以是塑膠、橡膠、金屬、 碳纖維、玻璃纖維或碳鋼，且該環牆21〇之材質可與該殼體214相 同，也可以相異。該環牆210係徑向圍繞一容置空間402,該容置 工間402係可谷納該座體3丨2的側壁，且該環牆21 〇與該座體3 ^ 2 側壁之間僅剩一狹長間隙。 該些氣牆產生結構212係位於環牆210内壁上，且位於該容置 空間402内，可在離心式風扇權運轉之際產生氣牆，以進一步防 止塵埃纟氣、外物等沿前述狹長間隙進入該殼體2内。該些氣 牆產生結構212可以是肋條、平板、葉形結構、曲板、規則板或不 規則板。該氣牆可以是環形氣流。 該些扇葉202係圍設於該殼體214周緣，具體而言，扇葉2〇2 係圍設於該環狀底盤上或該環狀底盤頂面。扇葉2〇2可以為平板扇 葉或曲形扇葉。扇葉2〇2頂部也可以加設強化環218，該強化環叫 係連接全部扇f 202,以防止扇葉2〇2在運轉的過程中變形，避免 離心式風扇4GG運轉時所產生之氣流軸向逸離，以及提供離心式風 扇400加壓的效果。扇葉2〇2、強化環218之材質可以是塑膠、橡 务、金屬、峡纖維、玻璃纖維或碳鋼。 該磁鐵206與殼體214之間也可以形成 磁殼體204可以強化該磁鐵206之磁作用力 具有前後開口的筒形結構、僅一側具開口的 該磁鐵206係圍設於該殼體214筒狀結構内周緣，用以與定子 磁極302產生對應的磁作用力。磁鐵2〇6係具有多個交替排/列之n 極與S極’磁鐵206可以是永久磁鐵、橡膠磁鐵或充磁磁鐵。 一導磁殼體204，該導 。導磁殼體204可以是 筒形結構或環形結構。 7 M287571 導磁殼體204之材質可以為金屬或其他導磁材料。 該轉軸208係位於該殼體214之中心部位，用以容置於後述座 體312之套筒内。該轉子200係以該轉軸2〇8為軸心旋轉。該轉軸 208容置於該座们U的套筒内的方式，可以是藉由轴承3〇6、則 及扣環310而套接於該座體312的套筒内。軸承3〇6、3〇8可以是In the above-described fan of the present invention, the accommodating space is surrounded by the side wall of the seat by the ring. Intimidation, child A In summary, this creation can greatly reduce the gap between the internal part of the fan and the outside by the mutual matching of the ring wall structure and the seat body, thereby preventing dust, moisture and external The effect of the object entering the inside of the fan. The above and other objects, features, and advantages of the present invention will become more apparent and obvious. The following detailed description of the preferred embodiments and the accompanying drawings A schematic cross-sectional view of the centrifugal fan 400 is shown. Figure 2B shows the exploded view of Figure 2A. The centrifugal fan 4 of the present invention is composed of a rotor 2〇〇 and a stator 300. The rotor 200 is composed of a plurality of blades 2〇2, a magnet 2〇6, a rotating shaft 208, and a casing 214. A plurality of gas wall generating structures 212 and a ring wall 2 〇 are formed. The stator 300 is formed by a stator pole 302, a base 312, and a circuit board 3〇4. The housing 214 is a main structure of the rotor 200, for example, the middle portion is a hollow cylindrical structure, and is in a cylindrical shape. The periphery of the opening of the structure is formed outwardly to form an annular chassis: the material of the casing 2U may be plastic, rubber, metal, carbon fiber, fiberglass or = 6 M287571 210 extending outwardly to protrude from the bottom surface 2π6 of the annular chassis, in particular % 蹁 210 axially protrudes from the bottom surface 216 or obliquely protrudes beyond the bottom surface aw. The turnback 210 may be integrally formed with the housing 2丨4 or may be coupled to the housing 214 by assembly. The material of the ring wall 21 can be plastic, rubber, metal, carbon fiber, fiberglass or carbon steel, and the material of the ring wall 21 can be the same as or different from the casing 214. The annular wall 210 is radially surrounding an accommodating space 402. The accommodating space 402 is configured to cover the side wall of the pedestal 3 丨 2, and the annular wall 21 〇 is only between the side wall of the pedestal 3 ^ 2 There is a narrow gap left. The air wall generating structure 212 is located on the inner wall of the ring wall 210 and is located in the accommodating space 402 to generate a gas wall when the centrifugal fan is running to further prevent dust, helium, foreign matter, etc. from being elongated along the aforementioned length. The gap enters the housing 2. The wall generating structures 212 can be ribs, slabs, lobes, curved plates, regular plates or irregular plates. The gas wall can be an annular gas stream. The fan blades 202 are disposed around the periphery of the casing 214. Specifically, the blades 2〇2 are disposed on the annular chassis or the top surface of the annular chassis. The fan blade 2〇2 may be a flat blade or a curved blade. A reinforcing ring 218 may also be added to the top of the fan blade 2〇2, and the reinforcing ring is connected to all the fans f 202 to prevent the blade 2〇2 from being deformed during operation, and avoid the airflow generated when the centrifugal fan 4GG is operated. The axial escape and the effect of providing centrifugal fan 400 pressurization. The blade 2〇2 and the reinforcing ring 218 may be made of plastic, rubber, metal, gorge, fiberglass or carbon steel. The magnetic housing 204 may be formed between the magnet 206 and the housing 214. The magnetic force of the magnet 206 may be enhanced to have a cylindrical structure with front and rear openings, and the magnet 206 having only one opening may be disposed around the housing 214. The inner circumference of the cylindrical structure is used to generate a corresponding magnetic force with the stator pole 302. The magnet 2〇6 has a plurality of alternating rows/columns of n-poles and S-poles. The magnet 206 can be a permanent magnet, a rubber magnet or a magnetizing magnet. a magnetically conductive housing 204, the guide. The magnetic housing 204 may be a cylindrical structure or a ring structure. 7 M287571 The magnetic housing 204 may be made of metal or other magnetically permeable material. The shaft 208 is located at a central portion of the casing 214 for receiving in a sleeve of a seat 312 to be described later. The rotor 200 is rotated about the axis of rotation 2〇8. The shaft 208 is received in the sleeve of the seat U, and can be sleeved in the sleeve of the seat body 312 by the bearing 3〇6 and the buckle 310. Bearings 3〇6, 3〇8 can be
滾珠轴承、含油軸承、動壓軸承或磁浮軸承，扣環31〇可以為C 形扣環或〇形扣環。 _ 該座體312係用以承載該轉子2〇〇、該定子磁極3〇2及該電路 板304，該座體312具有-中空套筒及一側壁。該轉子㈣、該定 子磁極302及該電路板304可以利用套接於該套筒的方式設置於該 座體312上。該座體312之材質可以是塑膠、橡膠、金屬、碳纖維、 玻璃纖維或碳鋼。 該定子磁極302係由多個導磁極齒314及線圈316所構成。該 定子磁極3G2可以為線圈316纏繞於該些導磁極齒314而構成徑向 繞線式定子磁極’也可以為軸向繞線式定子磁極。導磁極齒川可 以是石夕鋼片或其他導磁材料。該電路板3()4係與該定子磁極逝電 =’用以控制該定子磁極3〇2之磁性變化，進而驅動該轉子· 轉動。 在此第-較佳實施例中’由於離心式風扇彻利用環牆21〇罩 覆座體312以縮小座體312與殼體 能間的間隙，而在風扇靜止狀 心下有效防止塵埃、水氣、外物進 運轉的過程中，利用氣牆η更甚之在風扇 地阻^ 構12所產生之氣牆而更有效 地阻播塵埃、水氣、外物進人風扇内部。 干专第圖3=緣示本創作第二較佳實施例之離心式風扇的剖面 ;'二'離心式風U與前述離心核扇400之差異在於環牆 較圭=於座體5〇2側壁所圈圍得到的容置空間^ 佳實_中’由於離心式風扇遍利用顧5〇2側壁罩覆環牆 8 M287571 以有效防止塵埃、水 210 ,以縮小座體5〇2與殼體214間的間隙， 氣、外物進入風扇内部。 / 4圖係繪示本創作第三較佳實施例之離心式風扇_的剖面 不意圖。此離心式風扇_與前述離心式棚 604及氣牆產生結構_改設置於導磁殼體議上，其中 :乙伸大出磁鐵2〇6的底面610，且環牆604所圍繞而得之-容置 可谷、.，内u亥座體3 12的側壁。環牆604、氣牆產生结構6〇6 及導《體6G8之本體部602可以一體成形，也可以分別Ball bearings, oil-impregnated bearings, dynamic pressure bearings or magnetic bearings, the buckle 31〇 can be a C-shaped buckle or a snap-shaped buckle. The base 312 is for carrying the rotor 2, the stator poles 3〇2 and the circuit board 304. The base 312 has a hollow sleeve and a side wall. The rotor (4), the stator pole 302 and the circuit board 304 can be disposed on the seat body 312 by being sleeved on the sleeve. The body 312 can be made of plastic, rubber, metal, carbon fiber, glass fiber or carbon steel. The stator pole 302 is composed of a plurality of magnetic pole teeth 314 and a coil 316. The stator pole 3G2 may be wound around the conductive pole teeth 314 to form a radially wound stator pole ' or an axially wound stator pole. The magnetic pole tooth can be a Shihua steel sheet or other magnetic conductive material. The circuit board 3() 4 is connected to the stator magnetic pole = ' to control the magnetic change of the stator magnetic pole 3 〇 2, thereby driving the rotor · rotation. In the first preferred embodiment, the centrifugal fan is used to cover the seat 312 by the ring wall 21 to reduce the gap between the seat 312 and the housing, thereby effectively preventing dust and moisture in the static state of the fan. In the process of the foreign object entering the operation, the gas wall η is used to more effectively block the dust, moisture, and foreign objects entering the fan inside the gas wall generated by the fan block. Figure 3 is a cross-section showing the centrifugal fan of the second preferred embodiment of the present invention; the difference between the 'two' centrifugal wind U and the centrifugal centrifugal fan 400 is that the ring wall is larger than the seat body 5〇2 The accommodating space obtained by the surrounding of the side wall ^ 佳 _ 中 'Because the centrifugal fan is used to cover the wall cover 8 M287571 to effectively prevent dust and water 210 to reduce the seat 5 〇 2 and the housing Between the 214 gaps, gas and foreign matter enter the inside of the fan. The figure / 4 is a cross-sectional view showing the centrifugal fan of the third preferred embodiment of the present invention. The centrifugal fan _ and the centrifugal shed 604 and the air wall generating structure are disposed on the magnetic permeable casing, wherein: the bottom surface 610 of the magnet 2 〇 6 is extended, and the ring wall 604 is surrounded by - accommodating the side walls of the valley, . The ring wall 604, the gas wall generating structure 6〇6 and the body portion 602 of the body 6G8 may be integrally formed or separately
4貫加例中，由於離心式風扇6〇〇利用環牆6⑽罩覆座體Η〗 以縮小座體312與殼體214間的間隙，以有效防 物進入風扇内部。 ^ ^ -第5圖係繪示本創作第四較佳實施例之離心式風扇的剖面 不意圖。此離心式風扇7〇〇與前述離心式風扇_之差異在於環牆 刚㈣容置於座體702側壁所圈圍得到的容置空間704内。、在此 車乂佳實施例中’由於離心式風扇利用座體術側壁罩覆環牆 6^〇4，以縮小座體7〇2與殼體214間的間隙，以有效防止塵埃、水 氣、外物進入風扇内部。 一第立6Α圖係繪示本創作第五較佳實施例之離心式風扇_的剖 面示w圖此離心式風扇_與前述離心式風扇之差異在於環 牆802與座體806之側壁_係改利用相對應之導角斜面對應配 置，以防止塵埃、水氣或外物進入風扇内部。另外，也可以如第 6Β圖所示，環牆8〇2a與座體δ〇6之側壁8〇4a也可以利用相對應 之段差結構對應配置。 立第7圖係繪不本創作第六較佳實施例之離心式風扇$⑼的剖面 不意圖。此離心式風扇900與前述離心式風扇4〇〇之差異在於殼體 上不幵y成氣II回產生結構。在此較佳實施例中，離心式風扇刪 之防止塵埃、水氣、外物進人風扇内部的效果僅略低於離心式風扇 9In the four-plus example, since the centrifugal fan 6〇〇 covers the seat body by the ring wall 6 (10), the gap between the seat body 312 and the casing 214 is narrowed to effectively prevent the object from entering the inside of the fan. ^^ - Fig. 5 is a cross-sectional view showing the centrifugal fan of the fourth preferred embodiment of the present invention. The difference between the centrifugal fan 7 and the centrifugal fan is that the ring wall (4) is accommodated in the accommodating space 704 surrounded by the side wall of the seat 702. In this embodiment of the rut, 'the centrifugal fan uses the side wall cover of the seat cover to cover the ring wall 6^〇4 to reduce the gap between the seat body 7〇2 and the casing 214, so as to effectively prevent dust and moisture. Foreign objects enter the inside of the fan. A first embodiment of the centrifugal fan of the fifth preferred embodiment of the present invention is a cross-sectional view of the centrifugal fan _ which is different from the centrifugal fan described above in the side wall of the ring wall 802 and the seat 806. Change the corresponding configuration of the inclined angle to prevent dust, moisture or foreign objects from entering the fan. Alternatively, as shown in Fig. 6, the side wall 8〇2a of the ring wall 8〇2a and the seat δ〇6 may be arranged correspondingly by the corresponding step structure. Fig. 7 is a cross-sectional view of the centrifugal fan $(9) of the sixth preferred embodiment. The difference between the centrifugal fan 900 and the centrifugal fan 4 described above is that the casing does not generate a structure. In the preferred embodiment, the effect of the centrifugal fan to prevent dust, moisture, and foreign matter from entering the interior of the fan is only slightly lower than that of the centrifugal fan.