1374006 六、發明說明： 【發明所屬之技術領域】 本發明涉及一種散熱風扇構造，特別是一種可易於加 工 製造、組裝之散熱風扇者 【先前技術】 請參照第1圖所示，係中華民國公開第2〇〇74429〇號 「風扇及其内轉子馬達」發明專利案，該專利案揭示一種 習知散熱風扇80,該散熱風扇8〇大致包含一 一 定子結構82、—轉子結構83、-驅動裝置84 苹輪％ 。該殼體8!係由-第一殼體811及一第二殼體8 ，該第一殼體811與第二殼體812传 ^且成 _子結構83具有一轉軸831及一磁性元件件防；1374006 VI. Description of the Invention: [Technical Field] The present invention relates to a heat dissipating fan structure, and more particularly to a heat dissipating fan which can be easily manufactured, assembled and assembled. [Prior Art] Please refer to FIG. 1 for publication in the Republic of China. No. 2,744, s, entitled "Fan and its inner rotor motor" invention patent, which discloses a conventional heat dissipating fan 80, which generally comprises a certain substructure 82, a rotor structure 83, - Drive unit 84 flat wheel %. The housing 8 is composed of a first housing 811 and a second housing 8. The first housing 811 and the second housing 812 are coupled to each other. The sub-structure 83 has a rotating shaft 831 and a magnetic component. Defense
:=該殼體81内部，並由一第一軸承 T 834支持該轉軸⑶作植旋轉，且該磁性;第二 ^ =轉_且對應該導磁純821 ;該驅動^件阳 電!生連接叇導磁元件821 ;該 、置84係 位於該殼體81外部。葬此^連、’該轉車由如且 元件奶之電流;向，:二他制該導磁 作用’進而驅動該轉子結構83及葉：85:=，交鏈 該習知散麵扇8〇欲針對各式電子產動。 =時所產生之氣流無法被有效的導引华=葉輪 之一預定發熱部位，因此，該習知散熱== 效果不佳。 風戶qV、第2騎7F，係揭示—種具有扇框之習知散執 ^扇90 ’該散熱風扇90包含一扇框9卜一馬達92、—葉 屌ϋ—電路板94。該扇框91係以塑膠材料射出成型一 及r馬達殼912，該馬達殼912係位於該扇框 側，垓馬達殼912係由肋條等連接件9Π予以連 =支持於频部911 ;該馬達92係結合於該馬達殼Μ 二轉轴921、一磁性元件922及—定子923，該:= inside the housing 81, and supported by the first bearing T 834 for the rotation of the rotating shaft (3), and the magnetic; the second ^ = turn _ and corresponding to the magnetic permeability pure 821; The 叇 magnetic conductive element 821 is connected; the locating 84 is located outside the housing 81. The burial of this ^, 'the transfer of the current and the current of the component milk; to: two to make the magnetic permeability' and then drive the rotor structure 83 and leaves: 85: =, the chain of the known loose fan 8〇 Want to target all kinds of electronic production. When the air flow generated by = cannot be effectively guided to one of the Hua = impellers, the conventional heat dissipation == is not effective. The wind home qV and the second ride 7F are disclosed as a conventional fan-like fan. The fan 90 includes a frame 9 and a motor 92, and a circuit board 94. The fan frame 91 is formed by molding a plastic material and an r motor casing 912. The motor casing 912 is located on the side of the fan frame, and the motor casing 912 is connected by a connecting member 9 such as a rib; the frequency is supported by the frequency portion 911; The 92 series is coupled to the motor casing Μ two shaft 921, a magnetic element 922 and a stator 923,
由二轴承924樞接，且轉轴921 -端穿出至該馬 912外部’該磁性元件似係結合該轉軸奶並對位 : 子923，該葉輪93係結合於該轉軸921之一端且位於 該馬達殼912之外部；該電路板94係電性連接該定子923 藉此可利用該馬達92驅動該葉輪93旋轉作動，以提 供一預定散熱作用。The two bearings 924 are pivotally connected, and the end of the rotating shaft 921 is passed out to the outside of the horse 912. The magnetic element is coupled to the rotating shaft and is coupled to the sub-923. The impeller 93 is coupled to one end of the rotating shaft 921 and located at The motor casing 912 is externally connected to the stator 923. The motor 92 is used to drive the impeller 93 to rotate to provide a predetermined heat dissipation.
該習知散熱風扇90主要係以射出成型方式形成該扇 框91 ’以便利用該扇框91找計導引集中該葉輪93運轉 時所產生之氣流。由於該扇框91之馬達殼912係以塑勝材 料射出成型製成，gj此’當該電路板94控制該定子奶 fe玄磁性7C件922之間產生磁交鏈作用的過程中，該馬達 殼912本身並無法提供—封磁作用’故容易產生漏磁現 象另方面亦會造成電磁干擾的問題，使得該葉輪％ 之運轉效能受到影響，進而降低該習知散熱風扇9〇之散熱 效果。再且，要將該磁性元件922、定子923與電路板94 等要組裝在該扇框部911與馬達殼912内侧，亦顯得困難。 特別是，當該散熱風扇9〇之扇框91、馬達92及葉輪93 為較大尺寸’或者該扇框91為金屬材質製造時，該構造顯 然無法適用製造。 【發明内容】 本發明係改良上述缺點，以提供一種散熱風扇構造， 該散熱風扇係有較佳之散熱效果為本發明之目的。 本發明之次一目的係提供一種散熱風扇構造’該散熱 風扇係可以容易的組裝，使該散熱風扇易於加工生產並可 降低生產成本者。 本發明之再一目的係提供一種散熱風扇構造’該散熱 風扇之組裝係有較佳之精密度者。 本發明之又一目的係提供一種散熱風扇構造，該散熱 風扇係可以適用於大型尺寸或有金屬殼體之框體者。 本發明之又一目的係提供一種散熱風扇構造，該散熱 風扇係可以有效防止產生漏磁現象及杜絕電磁干擾之問題 者。 為達到前述發明目的，本發明之散熱風扇構造包含有 —框體、—第一殼體、一第二殼體及一馬達，該框體具有 進風口及一出風口，該進風口及出風口之間具有一氣流 通道’該氣流通道設有一固定座，該固定座與該框體之間 利用數個連接件相互連接，該固定座軸向設有數個第—定 位孔；該苐一殼體係由導磁材料製成，該第一殼體具有〜 外結合壁及在一端形成一擴徑壁，該第一殼體之另—端形 成第一支持部，該第一殼體設有數第二定位孔’該數第 一疋位孔與框體之數第一定位孔相對應，供定位元件將該 —7 — 1374006 第一殼體與框體結合；該第二殼體組裝於該第一殼體之擴 徑壁内部，該第二殼體設有一第二支持部；該馬達設置於 該第一殼體内部且包含一轉子及一定子，該轉子具有一轉 軸及一磁性元件，該轉軸樞接於上述第一支持部與第二支 持部’且該轉軸結合一葉輪，該磁性元件對位該定子；及 一電路板’係電性連接該定子。 【實施方式】 為讓本發明之上述及其他目的、特徵及優點能更明顯 易It，下文特舉本發明之較佳實施例，並配合所附圖式，鲁 作詳細說明如下： °月參照第3及5圖所示，其係本發明第一實施例之散 熱風扇構造，該散熱風扇主要係包含一框體1、一第一殼 體2 第一殼體3、一馬達4及一電路板5。該第一殼體 . 2係結合於該扇框1内側，該第二殼體3結合於該第—殼. 體2 ’該馬達4設置於該結合之第-殼體2與第二殼體3 内部，該電路板5係電性連接該馬達4 ^藉此，可利用該 電路板5控制該馬達4帶動-葉輪43旋轉作動，並藉由該鲁 框體1導！丨集中該葉輪43運轉時所產生之氣流。 框體1係可以選用塑膠材料或者以金屬讨料製成，該 框體1係具有—進風D 11及-出風口 12，該進風口 11及 出風口 12之間形成一氣流通道，在該氣流通道設有一固定 座13該固定座13有一貫通之座孔η，該因定座13與該 框體1之間可利用數個連接件Μ相互連接，各該連接件 14係可以選自肋條或靜葉等結構，該固定摩13具有適當 〜8 一 1374006 之徑向厚度及軸向長度，且依該固定座13之軸向設有數個 第一定位孔15，該數第一定位孔15可以供定位元件16結 合，用以固定第一殼體2，在本實施例當中，該數第一定 位孔15可以為螺孔，該定位元件16可以為螺釘或螺桿。 第一殼體2係由導磁材料所製成之中空殼體，該第一 殼體2較佳係由金屬材料製成，且經由沖製或車削加工方 式，使該第一殼體2具有正圓形狀之内壁最佳。該第一殼 體2具有一外結合壁21，該外結合壁21之外表面與固定 座13之座孔17成相對應之形狀，使該外結合壁21可以形 成緊配合之固定在該座孔17，在本實施例當中，該外結合 壁21與座扎17同為圓形；該第一殼體2之一端形成一擴 徑壁22，該第一殼體2之另一端形成一第一支持部23 ;該 擴徑壁22與外結合壁21之大小徑差形成一肩部24，該肩 部24設有數第二定位孔25，該數第二定位孔25與數第一 定位孔15相對應，使該定位元件16可以將該第一殼體2 與框體1成牢固之結合。該第一殼體2之第一支持部23 可以支持一第一軸承26，該第一支持部23與外結合壁21 之大小徑差形成一肩部27，該肩部27可以設數散熱孔28 。該第一殼體2之擴徑壁22還可以設數定位部29，該定 位部29可以向第一殼體2之圓心方向凹入。 第二殼體3係由外周邊形成緊配合之組裝於該第一殼 體2之擴徑壁22内部，該第二殼體3設有一第二支持部 31，該第二支持部31可以支持一第二軸承32。該第二殼 體3設一結合部33，該結合部33可以供該電路板5及一 蓋板34抵靠。該蓋板34可呈杯狀，以使該電路板5有較 —9 — Ϊ =效果。該第二殼體3本身亦可以設娜礼35， 购=5除可用作散熱外，還可以供電二過。 -轉子Si Λ於該第一殼體2内部，且該馬達4包含 42内&仏該轉子41可轉動的容置於該定子 =内二該轉子41具有一轉軸4U、一結合部M2及一磁 人:鉢3。該轉軸411之第一端穿套在第一軸承26並結 二一 43，以帶動該葉輪43同步旋轉，該結合可以如 圖所不，由該轉軸411與葉輪43設非正圓之結合部⑽、 1相嵌合/且由一扣合件432 固定，必要時，該轉 軸411上還可以套置一緩壓構件44，以避免該葉輪c直 接抵頂於第-轴承％。該轉軸奶之第二端穿套在第二轴 承32，以便該轉轴411可分別被該第一轴承％及第二轴 承32樞接，進而可以使該轉軸411依該第一軸承％及第 二軸承32旋轉。該磁性元件413則套接固定於該轉軸411 之外侧周面，以供對位該定子42。 電路板5係設置於該第二殼體3之結合部33及蓋板 34之間，如圖所示，該電路板5係抵接在該結合部33，該 電路板5再被該蓋板34抵接，當該蓋板34為金屬材質製 成時’該電路板5與蓋板34之間還可以置入一絕緣板51 請閱第4圖所示，其係本發明散熱風扇第一實施例之 組裝情形，首先將第一轴承26固定在該第一殼體2内之第 一支持部23，及將馬達4之定子42固定在第一殼體2内 相對於外結合壁21位置，此時，先利用定位元件16將該 第一殼體2固定在該框體1之固定座13，如此，再將該該 1374006 -轉子41由轉軸411之第一端穿伸該第一軸承26後再結合 - 該葉輪43 ;該第二殼體3先由其第二支持部31置入第二 軸承32後’該第二殼體3被固定在該第一殼體2之擴徑壁 22内側，且該第一軸承32穿套在該轉軸411之第二端， . 然後將該電路板5與蓋板34分別結合於該第二殼體3，利 用冲壓等各種方式’使該第一殼體2之定位部29向圓心方 向邊形凹人’用以駭該蓋板34及電路板5，藉以構成本 發明之散熱風扇。 本發明第一只施例之散熱風扇，由於設有框體1，如 此本發明第-實施例之散熱風扇除了可以有效導引葉輪 43旋轉所驅動之氣體流動外，當該框體1選用塑膠材料或 者以金屬材料製成時，本發明也可以適用於製造各種大型 尺寸散熱風扇需求’且該散熱風扇之加工、組裝也較為方 ' 便。再且’當該第-殼體2由導磁材料製成時，該第一殼 體2除了可以提供封磁作用，以有效避免產生漏磁現象及 • 物干擾的產生外。且由於該第一殼體2之製造加工方式 ’該第’體2可以緊密且牢固地被固定在該固定座13， t且在該第-殼體2之内壁被加工為同心圓狀態下，當該 帛二殼體3由外周邊«配合之m定在該第—殼體2内部 時’該第-殼體2與第二殼體3之組裝會有較佳之精密^ 請閱苐5圖所示，其係本發明第二實施例之散熱風扇 構造，該散熱風扇同樣包含一框體丨、一第—殼體67'—= =殼體7—馬達4及-電路板5,，該馬達4與前述第_ 實施例所揭示之結構特徵相同，恕不再贅述。 11 丄374006 在本實施例當中，該框體1亦選用塑膠材料或者以金 屬材料製成，該框體1係具有一進風口 u及一出風口 12 ，該進風口 11及出風口 12之間形成一氣流通道，在該氣 流通道設有一固定座13，該固定座13有一貫通之座孔17 、’該固定座13與該框體1之間可利用數個連接件14相互 連接各該連接件14係可以選自肋條或靜葉等結構，該固 定座13具有適當之徑向厚度及軸向長度，且依該固定座 13之軸向設有數第一定位孔15 ’該數第一定位孔15可以 供定位元件16結合，用以固定第一殼體2，在本實施例當 中’該固定座13係鄰近該出風口 12。 第一殼體6亦係由導磁材料所製成之中空殼體，較佳 係由金屬材料製成，且經由沖製或車削加工方式，使該第 风體2具有正圓形狀之内壁最佳。該第一殼體6具有一 外結合壁61及在該外結合壁61 一端邊形成一擴徑壁62， ，擴徑壁62之外表面與固定座13成相對應之形狀，在本 貫知例§中，該二者為圓形，使該第一殼體6由該擴徑壁 ，可以形成緊密之固定在該固定座13之座孔17 ;該第一 喊體6之底部設-徑向延伸之唇部64，該唇部64徑向延 伸开>成於4擴彳㈣62之端部n部Μ設有*第二定位 孔65 ’該數第二定位孔65與數第一定位孔15相對應，使 該疋位兀件16可以將該第—殼體6與框體丨成牢固之結合 。該第一殼體6之另—端形成-第-支持部63,該第-支 63可以支持一第一輪承％，該第一支持部μ與外結 :壁61之大小徑差形成—肩部67，該肩部67可以設數散 —12 1374006 該第二殼體7係由外周邊形成緊配合之組裝於該第一 殼體6之擴徑壁62内部，該第二殼體7設有一第二支持部 71，該第二支持部71可以支持一第二軸承72。該第二殼 體7設一結合部73,該結合部73可以供一電路板5’抵靠 ，且該第二殼體7設數結合件75，該結合件75可以結合 - 一蓋板74,在本實施例當中，該蓋板74為塑膠材質，該 • 結合件75直接卡扣在該蓋板74之結合孔741。該第二殼 體7本身亦可以設數散熱孔76。 • 電路板5’係設置於該第二殼體7及蓋板74之間，且 該電路板5’係電性連接該定子42，該電路板5’還可以由 周邊位置設數定位孔52’ ，該定位孔52’供第二殼體7 之結合件73通過。 請閱第6圖所示，本發明散熱風扇第二實施例之組裝 除了可以與第一實施例相同外，在本實施例當中，還可以 將第一軸承66固定在該第一殼體6内之第一支持部63， 及將馬達4之定子42固定在第一殼體6内相對於外結合壁 * 61位置，再將該該轉子41由轉軸411之第一端由該第一 軸承66穿出；該第二殼體7先由其第二支持部71置入第 - 二軸承72後，該第二殼體7被緊密地固定在該第一殼體6 ‘ 之擴徑壁62内側，且將該第二軸承72穿套在該轉軸411 之第二端，復將該電路板5’與蓋板74分別結合於該第二 殼體7，然後將該結合之馬達4、第二殼體7及電路板5’ 由第一殼體6之擴徑壁62成緊密地固定在該框體1所設固 定座13之座孔17,並藉由定位元件16穿經第二定位孔65 結合在固定座13之第一定位孔15，使該第一殼體6可以 13 — 端結合葉輪43， 第一軸承66之轉轴411第 藉以構成本發明散熱風扇 -g . , Λ知例之散熱風扇構造，與第一實施例所 ^裝上用與效果外，該第二實施例之散熱風扇在 所酿的散熱風扇構造’由於設有框體，使得該葉輪 如戶可以朝a預定的方向流動’使得本發明的散 熱風扇會有較麵錄效果的功效。 八本lx月的散熱風扇構造，由於該第一殼體與框體可以 为開加工製造’使得本發明的散熱係可 及易於加1生錢㈣魅麵本絲㈣效。， 口本毛明的散熱風扇構造，由於該第一殼體與第二殼體 σ^車肖]加工製造方式，使得該第一殼體與第二殼體之 組裝’係可以有触精密度絲的功效。 、本發明的散熱風扇構造，由於該第一殼體與框體可以 分開加工製造，使得本發明係可以適用於製造各種大型尺 寸的散熱風扇’或可金屬製造該框體效果的功效。 本發明的散熱風扇構造，由於該第一殼體可以由導磁 材料製成，使得本發明的散熱風扇係可以有效防止產生漏 磁現象及具有杜絕電磁干擾問題效果的功效。 雖然本發明已利用上述較佳實施例揭示，然其並非用 以限定本發明，任何熟習此技藝者在不脫離本發明之精神 和範圍之内，相對上述實施例進行各種更動與修改仍屬本 發明所保護之技術範疇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。 印4006 【圖式簡單說明】 第1圖：習知之散熱風扇組合剖視圖。 苐2圖.習知具有扇框之散熱風扇的組合剖視圖。 第3圖：本發明第一實施例之散熱風扇的立體分解圖。 第4圖：本發明第一實施例之散熱風扇的組合剖視圖。 第5圖：本發明第二實施例之散熱風扇的立體分解圖。 第6圖：本發明第二實施例之散熱風扇的組合剖視圖。 【主要元件符號說明】The conventional heat dissipating fan 90 is mainly formed by injection molding to form the fan frame 91' so as to use the fan frame 91 to find and guide the airflow generated when the impeller 93 is operated. Since the motor casing 912 of the fan frame 91 is formed by injection molding of a plastic material, the motor is in the process of controlling the magnetic cross-linking between the stator and the magnetic core 7C 922. The shell 912 itself cannot provide the magnetic sealing effect, so the magnetic leakage phenomenon is easily generated, and the electromagnetic interference problem is also caused, so that the operating efficiency of the impeller is affected, thereby reducing the heat dissipation effect of the conventional cooling fan 9〇. Further, it is also difficult to assemble the magnetic member 922, the stator 923, the circuit board 94, and the like inside the fan frame portion 911 and the motor case 912. In particular, when the fan frame 91, the motor 92, and the impeller 93 of the heat radiating fan 9 are of a large size' or the frame 91 is made of a metal material, the structure is obviously not applicable. SUMMARY OF THE INVENTION The present invention is to improve the above disadvantages to provide a heat dissipation fan structure having a preferred heat dissipation effect for the purpose of the present invention. A second object of the present invention is to provide a heat dissipating fan structure which can be easily assembled, which makes the heat dissipating fan easy to process and can reduce the production cost. Still another object of the present invention is to provide a heat dissipating fan structure. The assembly of the heat dissipating fan has better precision. Still another object of the present invention is to provide a heat dissipating fan structure which can be applied to a frame of a large size or a metal casing. Still another object of the present invention is to provide a heat dissipating fan structure which can effectively prevent the occurrence of magnetic flux leakage and eliminate electromagnetic interference. In order to achieve the foregoing object, the heat dissipation fan structure of the present invention comprises a frame, a first casing, a second casing and a motor, the frame having an air inlet and an air outlet, the air inlet and the air outlet There is a gas flow passage between the air flow passages. The air flow passage is provided with a fixing seat. The fixing seat and the frame body are connected to each other by a plurality of connecting members. The fixing seat is axially provided with a plurality of first positioning holes. The first housing has an outer connecting wall and an expanded diameter wall at one end, and the other end of the first housing forms a first supporting portion, and the first housing is provided with a second number. The first positioning hole corresponds to the first positioning hole of the frame body, and the positioning component combines the first housing with the frame; the second housing is assembled to the first The second housing is provided with a second support portion; the motor is disposed inside the first housing and includes a rotor and a stator, the rotor has a rotating shaft and a magnetic component, the rotating shaft Pivoting to the first support portion and the second support portion The impeller shaft and a binding, the alignment of the stator magnetic element; and a circuit board 'based electrically connected to the stator. The above and other objects, features, and advantages of the present invention will become more apparent from the claims. 3 and 5 are a heat dissipation fan structure according to a first embodiment of the present invention. The heat dissipation fan mainly includes a frame body 1, a first housing 2, a first housing 3, a motor 4, and a circuit. Board 5. The first housing. 2 is coupled to the inner side of the fan frame 1. The second housing 3 is coupled to the first housing. The body 2 is disposed on the combined first housing 2 and the second housing. 3, the circuit board 5 is electrically connected to the motor 4 ^, whereby the circuit board 5 can be used to control the rotation of the motor 4 - the impeller 43 and guided by the frame 1! The enthalpy concentrates the airflow generated when the impeller 43 is in operation. The frame 1 can be made of a plastic material or a metal material. The frame 1 has an air inlet D 11 and an air outlet 12, and an air flow passage is formed between the air inlet 11 and the air outlet 12. The air passage is provided with a fixing seat 13 . The fixing seat 13 has a through hole η. The fixing seat 13 and the frame 1 can be connected to each other by using a plurality of connecting members, and the connecting member 14 can be selected from the rib. Or a structure such as a vane, the fixed friction 13 has a radial thickness and an axial length of a suitable length of 8 to 13740, and a plurality of first positioning holes 15 are provided according to the axial direction of the fixing base 13, and the first positioning holes 15 are provided. The positioning member 16 can be combined to fix the first housing 2. In the embodiment, the first positioning holes 15 can be screw holes, and the positioning member 16 can be a screw or a screw. The first housing 2 is a hollow housing made of a magnetically permeable material, and the first housing 2 is preferably made of a metal material, and the first housing 2 is made by punching or turning. The inner wall with a perfect circular shape is the best. The first housing 2 has an outer joint wall 21, and the outer surface of the outer joint wall 21 has a shape corresponding to the seat hole 17 of the fixing seat 13, so that the outer joint wall 21 can be tightly fitted to the seat. In the embodiment, the outer connecting wall 21 and the seat 17 are circular; one end of the first housing 2 forms an enlarged diameter wall 22, and the other end of the first housing 2 forms a first a support portion 23; the diameter difference between the enlarged diameter wall 22 and the outer joint wall 21 forms a shoulder portion 24, the shoulder portion 24 is provided with a plurality of second positioning holes 25, and the number of second positioning holes 25 and the number of first positioning holes Correspondingly, the positioning member 16 can firmly bond the first housing 2 and the frame 1. The first support portion 23 of the first housing 2 can support a first bearing 26, and the diameter difference between the first support portion 23 and the outer joint wall 21 forms a shoulder portion 27, and the shoulder portion 27 can be provided with a plurality of heat dissipation holes. 28 . The enlarged diameter wall 22 of the first casing 2 may be provided with a plurality of positioning portions 29 which may be recessed in the direction of the center of the first casing 2. The second housing 3 is formed by the outer periphery of the enlarged diameter wall 22 of the first housing 2, and the second housing 3 is provided with a second support portion 31. The second support portion 31 can support the second support portion 31. A second bearing 32. The second housing 3 is provided with a joint portion 33, and the joint portion 33 can abut the circuit board 5 and a cover plate 34. The cover plate 34 can be cup-shaped so that the circuit board 5 has a more than 9 Ϊ effect. The second casing 3 itself can also be provided with a gift of 35, which can be used for heat dissipation as well as for power supply. a rotor Si is disposed inside the first casing 2, and the motor 4 includes a casing 42. The rotor 41 is rotatably accommodated in the stator=2. The rotor 41 has a rotating shaft 4U, a joint portion M2, and A magnetic person: 钵 3. The first end of the rotating shaft 411 is sleeved on the first bearing 26 and is coupled to the second 43 to drive the impeller 43 to rotate synchronously. The combination may be as shown in the figure. The rotating shaft 411 and the impeller 43 are provided with a non-circular joint. (10), 1 phase fitting/fixed by a fastening member 432, if necessary, a pressing member 44 may be placed on the rotating shaft 411 to prevent the impeller c from directly abutting the first bearing %. The second end of the rotating shaft is sleeved on the second bearing 32, so that the rotating shaft 411 can be pivotally connected to the first bearing and the second bearing 32, respectively, so that the rotating shaft 411 can be made according to the first bearing The two bearings 32 rotate. The magnetic element 413 is sleeved and fixed to the outer circumferential surface of the rotating shaft 411 for aligning the stator 42. The circuit board 5 is disposed between the joint portion 33 of the second casing 3 and the cover plate 34. As shown, the circuit board 5 abuts against the joint portion 33, and the circuit board 5 is further covered by the cover plate. When the cover plate 34 is made of a metal material, an insulating plate 51 can be placed between the circuit board 5 and the cover plate 34. As shown in FIG. 4, it is the first cooling fan of the present invention. In the assembled case of the embodiment, the first bearing 26 is first fixed to the first support portion 23 in the first housing 2, and the stator 42 of the motor 4 is fixed in the first housing 2 relative to the outer joint wall 21 At this time, the first housing 2 is first fixed to the fixing seat 13 of the frame 1 by using the positioning component 16, so that the first end of the rotating shaft 411 is penetrated by the first bearing. After the second housing 3 is first inserted into the second bearing 32 by the second supporting portion 31, the second housing 3 is fixed to the enlarged diameter wall of the first housing 2 22 inside, and the first bearing 32 is sleeved on the second end of the rotating shaft 411. Then, the circuit board 5 and the cover plate 34 are respectively coupled to the second casing 3, and various kinds of stamping and the like are used. Formula 'The positioning of the first housing portion 29 to the side to the center side of human-shaped recess 2' of the cover plate 34 and the circuit board 5 to hack, thereby constituting the cooling fan according to the present invention. The heat dissipating fan of the first embodiment of the present invention is provided with a frame body 1 so that the heat dissipating fan of the first embodiment of the present invention can effectively guide the gas flow driven by the rotation of the impeller 43 when the heat dissipating fan of the first embodiment of the present invention is used. When the material is made of a metal material, the present invention can also be applied to the manufacture of various large-sized cooling fans, and the processing and assembly of the cooling fan are relatively simple. Further, when the first casing 2 is made of a magnetically permeable material, the first casing 2 can provide a magnetic sealing function to effectively avoid occurrence of magnetic flux leakage and disturbance of matter. And because the manufacturing process of the first housing 2 'the 'body' 2 can be tightly and firmly fixed to the fixing seat 13 , and in the state in which the inner wall of the first housing 2 is processed into a concentric circle, When the second housing 3 is defined by the outer periphery «the mating of the first housing 2, the assembly of the first housing 2 and the second housing 3 will have better precision." As shown in the second embodiment of the present invention, the heat dissipation fan also includes a frame body, a first housing 67'-==the housing 7-the motor 4 and the circuit board 5, The motor 4 has the same structural features as those disclosed in the foregoing embodiment, and will not be described again. 11 丄 374006 In the embodiment, the frame 1 is also made of a plastic material or a metal material, and the frame 1 has an air inlet u and an air outlet 12 between the air inlet 11 and the air outlet 12 An air flow channel is formed, and the air flow channel is provided with a fixing seat 13 . The fixing seat 13 has a through hole 17 , and the connecting frame 13 and the frame 1 can be connected to each other by using a plurality of connecting members 14 . The member 14 can be selected from the group consisting of a rib or a vane having a suitable radial thickness and axial length, and a plurality of first positioning holes 15 ′ are disposed in the axial direction of the fixing seat 13 The hole 15 can be combined with the positioning member 16 for fixing the first housing 2, which in the present embodiment is adjacent to the air outlet 12. The first housing 6 is also a hollow housing made of a magnetically permeable material, preferably made of a metal material, and the first air body 2 has a right circular inner wall via punching or turning. optimal. The first housing 6 has an outer connecting wall 61 and an enlarged diameter wall 62 formed at one end of the outer connecting wall 61. The outer surface of the enlarged diameter wall 62 has a shape corresponding to the fixing seat 13, which is known in the art. In the example §, the two are circular, so that the first housing 6 can be formed by the enlarged diameter wall and can be tightly fixed to the seat hole 17 of the fixing seat 13; the bottom of the first shouting body 6 is provided with a diameter To the extended lip portion 64, the lip portion 64 extends radially > at the end of the 4th opening (four) 62, the n portion is provided with a second positioning hole 65'. The number of the second positioning holes 65 and the number of first positioning The holes 15 correspond to each other, so that the clamping member 16 can form a firm bond between the first housing 6 and the frame. The other end of the first housing 6 forms a first-supporting portion 63. The first branch 63 can support a first wheel bearing %, and the first supporting portion μ and the outer node: the wall 61 are formed by a difference in size - a shoulder portion 67, the shoulder portion 67 can be provided with a number of dispersions - 12 1374006. The second housing 7 is formed inside the enlarged diameter wall 62 of the first housing 6 by a tight fit formed by the outer periphery, the second housing 7 A second support portion 71 is provided, and the second support portion 71 can support a second bearing 72. The second housing 7 is provided with a joint portion 73. The joint portion 73 can be abutted against a circuit board 5', and the second housing 7 is provided with a plurality of joint members 75. The joint member 75 can be combined with a cover plate 74. In the embodiment, the cover plate 74 is made of a plastic material, and the coupling member 75 is directly fastened to the coupling hole 741 of the cover plate 74. The second casing 7 itself may also be provided with a plurality of heat dissipation holes 76. The circuit board 5' is disposed between the second housing 7 and the cover 74, and the circuit board 5' is electrically connected to the stator 42. The circuit board 5' can also be provided with positioning holes 52 from the peripheral position. ', the positioning hole 52' is passed through the coupling member 73 of the second housing 7. Referring to FIG. 6, the assembly of the second embodiment of the heat dissipation fan of the present invention can be fixed to the first housing 6 in the present embodiment, except that it can be identical to the first embodiment. The first support portion 63, and the stator 42 of the motor 4 is fixed in the first housing 6 with respect to the outer joint wall * 61, and the first end of the rotor 41 from the rotating shaft 411 is used by the first bearing 66. After the second housing 7 is first inserted into the second bearing 72 by the second supporting portion 71, the second housing 7 is tightly fixed inside the enlarged diameter wall 62 of the first housing 6'. And the second bearing 72 is sleeved on the second end of the rotating shaft 411, and the circuit board 5' and the cover plate 74 are respectively coupled to the second housing 7, and then the combined motor 4, the second The housing 7 and the circuit board 5' are tightly fixed to the seat hole 17 of the fixing base 13 of the frame body 1 by the enlarged diameter wall 62 of the first housing 6, and are passed through the second positioning hole by the positioning member 16. 65 is coupled to the first positioning hole 15 of the fixing seat 13, so that the first housing 6 can be 13-end combined with the impeller 43, and the rotating shaft 411 of the first bearing 66 is used to constitute the present invention. The heat-dissipating fan structure of the heat-dissipating fan is different from that of the first embodiment, and the heat-dissipating fan of the second embodiment is provided with a frame body. The impeller can be made to flow in a predetermined direction, so that the cooling fan of the present invention has a more effective effect. The eight-month-long cooling fan structure, because the first casing and the frame can be manufactured by the manufacturing process, makes the heat dissipation system of the present invention easy to add one (four) charm face silk (four) effect. The structure of the heat dissipation fan of the mouth of the hair, because of the manufacturing method of the first casing and the second casing, so that the assembly of the first casing and the second casing can have a touch precision The effect of silk. According to the heat dissipating fan structure of the present invention, since the first casing and the frame body can be separately manufactured, the present invention can be applied to manufacture various large-sized heat dissipating fans or to metallize the effect of the frame body. According to the heat dissipating fan structure of the present invention, since the first casing can be made of a magnetic conductive material, the heat dissipating fan of the present invention can effectively prevent the occurrence of magnetic leakage and the effect of eliminating electromagnetic interference problems. While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is therefore defined by the scope of the appended claims. Print 4006 [Simple description of the diagram] Figure 1: A cross-sectional view of a conventional cooling fan assembly. Figure 2 is a cross-sectional view showing a combination of a fan having a fan frame. Fig. 3 is an exploded perspective view showing the heat radiating fan of the first embodiment of the present invention. Fig. 4 is a sectional view showing the combination of the heat radiating fan of the first embodiment of the present invention. Fig. 5 is an exploded perspective view showing the heat radiating fan of the second embodiment of the present invention. Fig. 6 is a sectional view showing the combination of the heat radiating fan of the second embodiment of the present invention. [Main component symbol description]
C 〔本發明〕 1 框體 11 進風〇 12 出風口 13 固定座 14 連接件 15 第一定位孔 16 定位元件 17 座孔 2 第一殼體 21 外結合壁 22 擴徑壁 23 第一支持部 24 肩部 25 第二定位孔 26 第一車由承 27 肩部 28 散熱孔 29 定位部 3 第二殻體 31 第一支持部 32 第二軸承 33 結合部 34 蓋板 35 散熱孔 —15 1374006 85 葉輪 90 散熱風扇 91 扇框 911 扇框部 912 馬達殼 913 連接件 92 馬達 921 轉軸 922 磁性元件 923 定子 924 軸承 93 葉輪 94 電路板C [Invention] 1 Frame 11 Inlet 〇 12 Air outlet 13 Fixing seat 14 Connecting piece 15 First positioning hole 16 Positioning element 17 Seat hole 2 First housing 21 External joint wall 22 Enlarged wall 23 First support 24 shoulder 25 second positioning hole 26 first vehicle bearing 27 shoulder 28 heat dissipation hole 29 positioning portion 3 second housing 31 first support portion 32 second bearing 33 joint portion 34 cover plate 35 heat dissipation hole - 15 1374006 85 Impeller 90 Cooling fan 91 Fan frame 911 Fan frame 912 Motor housing 913 Connection 92 Motor 921 Rotary shaft 922 Magnetic element 923 Stator 924 Bearing 93 Impeller 94 Circuit board