rI363471 九、發明說明： 【發明所屬之技術領域】 種具防塵和散 本發明係關於一種馬達，特別關於 熱功能之馬達和風扇。 【先前技術】 馬達係用來將電能轉換為機械能的部件，且 應用於日常生財的機械結射，例 種 類：多’其大致可分為内轉子馬達及外轉子馬二= :要的分別係轉子所設置的位置為馬達内側或外 庙：ί照第1圖所示，習用之外轉子馬達1包括軸承 ίο俜：括子定子12以及電路板13。其中該軸承座 係包括—軸管部1G1，至少—轴承1G2係容置於軸管 部⑻中。轉子π係'包括轉軸U1、鐵殼112及 113，轉軸ill係嵌設於鐵殼112並穿設於轴管部⑼ 及軸承102 ’磁環113係環設於鐵殼112之内壁。 定子12係包括複數個線圈組，該等線圈組係 於軸管部1G1並對應磁環113設置。電路板13 = 並連結於姆部1(H ,且設置於料座⑺上並與^ 圈組電性連接。藉由電路板13驅動線圈組之電流方 向，使得線圈組與轉子u之磁環113產生磁場作 進而使轉子11旋轉。 ’ 然而，此種外轉子馬達丨之結構，由於各構件間的 ，隙搭配較多’因此其密封性不足，使得其保護效果較 差。例如轉子U與轴承座1〇間存在間隙G,因此外界 環境之異物、水氣或外部粉塵等容易經由間隙G而進入 夕=子馬達！之内部，造成馬達異常或損壞，因而降低 外轉子馬達1之可靠度與使用壽命。 【發明内容】 有鑑於上述課題，本發明之 _ _ ^ ^ 和散熱功能之馬達和風扇❶ 的為楗供一種具防塵 為達上述目的’本發明之馬達包括一殼體， 八有空間’並由—熱傳導材質所構成·，一定子， =於該殼體内；以及一轉子’具有-轉軸，穿設於該 且其-端突出於該密閉空間外，與—葉輪連結， 其中該定子及該轉子係容置於該密閉空間内。 :達j目的’本發明之風扇包括一馬達，其包括 一密閉空間，並由-熱傳導材質所構成; :疋子’固疋於該殼體内；以及一轉子，具有一轉軸， 於該定子，且其一端突出於該密閉空間外，其中該 ==係容置於該密閉空間内;以及一葉輪，係 殼體 結。 該殼體係由一第一殼體及一 及該第二殼體可藉由卡合、 第二殼體構成。該第一 黏合或鎖合的方式連 該第一设體係具有一 ^ JkR , 4- ^ ^ ^ 神官0卩，該轉軸係穿設於該軸 管部内。該風扇更包括至少一 釉承，設置於該軸管部 1363471 内，以支樓該轉軸。該風扇更包括一緊固件，與該轉轴 連結’並與該轴承接觸。 此外，該風扇包括一驅動裝置，套設於該轉軸並設 置於該密閉空間内，且與該定子電性連接，該驅動裝置 係包括一電路板0 較佳地，該風扇更包括複數個散熱鰭片，設置於該 •殼體表面。 Λ 另外，該風扇更包括一外蓋，與該殼體連結，可將 籲一驅動裝置或電路板設置於該外蓋内。 ^該葉輪包括一輪轂和環設於該輪轂周圍之複數個 葉片，該輪轂表面具有至少一通孔，當該葉輪轉動時， 外界之冷空氣會經由該通孔吸入，將蓄積於該殼體之熱 散逸至外界。該葉輪較佳為一離心式葉輪或一軸流式葉 輪。 ’、 承上所述，由於本發明之馬達係將定子、轉子及驅 動裝置容置於一密閉空間内，該密閉空間係由具有熱傳 導功能之殼體所構成。本發明之馬達具有極佳的密閉 性，以達到有效保護馬達内部構件。此外，更於殼體表 面增設散熱鰭片’加大散熱表面積。因此，本發明之馬 達殼體可同時達到散熱與防塵之效果。 【實施方式】 以下將參照相_式，說明依據本發明較佳實施例 之種馬達以及使用該馬達之風扇。其中相同的元件將 以相同的參照符號加以說明。 1363471 第2圖係顯示本發明較佳實施例之馬達的立體爆 •令圖。馬達2包括一定子21、一轉子22以及一驅動裝 置23 〇 驅動裝置23係與該定子21電性連接，該驅動裝置 23具有一電路板。此外，轉子22係包括一轉轴221及 導磁喊222，該轉軸221係連結或嵌設於導磁殼222 之中。該定子21係由矽鋼片和線圈所組成。 馬達2更包括一第一殼體251及一第二殼體252， 第一殼體251及第二殼體252之材質可為銅、鋁、金屬 或熱傳導之材質’且m卡合、黏合或鎖合的方式 連結，以形成一密閉空間24 (如第3圖所示）。在此， 第一殼體251及第二殼體252係藉由螺絲％來鎖合。 另外，第一殼體251係具有一容置空間以容置該定子 21和轉子22，第二殼體252具有一轴管部2521。在組 裝時，定子21及驅動裝置23係套設於軸管部2521， 且轉子22之轉軸221係穿設過軸管部2521，且突出於 第二殼體252之外。較子21固^於第—㈣251内、， 在馬達運轉時所產生之熱可藉由第一殼冑251及第二 殼體252散逸至外界。 一 此外，該馬達2更包括二軸承27a、27b，在組裝時， 轴承27a、27b係套設於轉# 221並設置於轴管部如 内。該轴承27a、27b係可為一含油轴承或一料 ^卜’該馬達2更包括-緊固件29，其係用以定位轴 承27b之位置’並抵抗軸向力矩。 1363471 更，均應包含於後附之申請專利範圍中。 【圖式簡單說明】 第1圖為習用外轉子馬達的示意圖； 第2圖為依據本發明較佳實施例之一種馬達的立體爆 炸圖； ' 第3圖為第2圖所示之馬達與葉輪連結成之風扇的剖面 圖；以及 4圖為依據本發明另一較佳實施例之風扇的剖面圖。 主要元件符號說明】 、2 馬達 101 軸管部 u、22 轉子 112 鐵殼 12、21 定子 222 導磁殼 24 密閉空間 251 第一殼體 2521 軸管部 29 緊固件 31 輪穀 4 散熱鰭片 10 轴承座 102、27a、27b 軸承 111、221 轉軸 113 磁環 13 電路板 23 驅動裝置 311 通孔 252第二殼體 26 螺絲 3 葉輪 32葉片 5 外蓋rI363471 IX. Description of the invention: [Technical field to which the invention pertains] The invention relates to a motor, in particular to a motor and a fan of thermal function. [Prior Art] The motor is used to convert electrical energy into mechanical energy components, and is applied to mechanical caving of daily wealth. Examples: many types can be roughly divided into inner rotor motor and outer rotor horse two =: required The position where the rotor is disposed is the inner side of the motor or the outer temple: ί, as shown in Fig. 1, the conventional outer rotor motor 1 includes a bearing ίο俜: a stator stator 12 and a circuit board 13. The bearing housing includes a shaft tube portion 1G1, and at least the bearing 1G2 is housed in the shaft tube portion (8). The rotor π system includes a rotating shaft U1 and iron shells 112 and 113. The rotating shaft ill is embedded in the iron shell 112 and is disposed through the shaft tube portion (9) and the bearing 102'. The magnetic ring 113 is disposed on the inner wall of the iron shell 112. The stator 12 includes a plurality of coil sets which are attached to the shaft tube portion 1G1 and which are disposed corresponding to the magnetic ring 113. The circuit board 13 = is connected to the first portion 1 (H) and is disposed on the socket (7) and electrically connected to the coil assembly. The current direction of the coil assembly is driven by the circuit board 13, so that the magnetic coil of the coil assembly and the rotor u 113 generates a magnetic field to further rotate the rotor 11. 'However, the structure of the outer rotor motor , is due to the fact that the gap between the members is large, so the sealing effect is insufficient, so that the protection effect is poor. For example, the rotor U and the bearing There is a gap G between the seats, so that foreign matter, moisture or external dust in the external environment easily enters the interior of the electric motor through the gap G, causing the motor to be abnormal or damaged, thereby reducing the reliability of the outer rotor motor 1 and [Explanation] In view of the above problems, the motor and the fan of the present invention are provided with a heat-dissipating motor and a fan for providing a dustproof device for the above purpose. The motor of the present invention includes a casing, and eight The space 'and consists of a heat-conducting material, a stator, = in the casing; and a rotor' has a shaft, which is disposed therethrough and whose end protrudes outside the sealed space and is coupled to the impeller. Wherein the stator and the rotor are housed in the sealed space. The fan of the present invention includes a motor including a sealed space and composed of a heat conductive material; the rafter is fixed in the And a rotor having a rotating shaft on the stator, one end of which protrudes outside the sealed space, wherein the == system is placed in the sealed space; and an impeller is a casing. The system consists of a first housing and a second housing which can be formed by a snapping and a second housing. The first bonding or locking manner is connected to the first system with a J JR, 4- ^ ^ ^ 神官 0卩, the shaft is threaded in the shaft tube portion. The fan further includes at least one glaze bearing disposed in the shaft tube portion 1363471 to support the shaft. The fan further includes a fastener, and The rotating shaft is coupled to and in contact with the bearing. In addition, the fan includes a driving device disposed on the rotating shaft and disposed in the sealed space, and electrically connected to the stator, the driving device comprises a circuit board. Preferably, the fan further includes a plurality of heat dissipation fins The fan further includes an outer cover coupled to the housing to provide a driving device or a circuit board in the outer cover. The impeller includes a hub and a ring. a plurality of blades around the hub, the hub surface having at least one through hole. When the impeller rotates, cold air from the outside is sucked through the through hole to dissipate heat accumulated in the casing to the outside. It is a centrifugal impeller or an axial flow impeller. As described above, since the motor of the present invention accommodates the stator, the rotor and the driving device in a closed space, the closed space is made of a shell having heat conduction function. The motor of the present invention has excellent airtightness to effectively protect the internal components of the motor. In addition, a heat dissipating fin is added to the surface of the casing to increase the heat dissipating surface area. Therefore, the motor housing of the present invention can achieve both heat dissipation and dustproof effects. [Embodiment] Hereinafter, a motor according to a preferred embodiment of the present invention and a fan using the same will be described with reference to a phase. The same elements will be described with the same reference symbols. 1363471 Fig. 2 is a perspective view showing a three-dimensional explosion of the motor of the preferred embodiment of the present invention. The motor 2 includes a stator 21, a rotor 22, and a driving device 23. The driving device 23 is electrically connected to the stator 21. The driving device 23 has a circuit board. In addition, the rotor 22 includes a rotating shaft 221 and a magnetic yoke 222 which is coupled or embedded in the magnetic conductive shell 222. The stator 21 is composed of a silicon steel sheet and a coil. The motor 2 further includes a first housing 251 and a second housing 252. The material of the first housing 251 and the second housing 252 can be copper, aluminum, metal or heat conduction material and the card is engaged, bonded or The locks are joined to form a closed space 24 (as shown in Fig. 3). Here, the first housing 251 and the second housing 252 are locked by the screw %. Further, the first housing 251 has an accommodating space for accommodating the stator 21 and the rotor 22, and the second housing 252 has a shaft tube portion 2521. At the time of assembly, the stator 21 and the driving device 23 are sleeved on the shaft tube portion 2521, and the rotating shaft 221 of the rotor 22 passes through the shaft tube portion 2521 and protrudes beyond the second housing 252. The heat generated during the operation of the motor can be dissipated to the outside by the first casing 251 and the second casing 252. Further, the motor 2 further includes two bearings 27a and 27b. When assembled, the bearings 27a and 27b are sleeved on the turn #221 and disposed inside the shaft tube portion. The bearings 27a, 27b can be an oil-impregnated bearing or a material. The motor 2 further includes a fastener 29 for positioning the bearing 27b and resisting axial moments. 1363471 Further, it should be included in the scope of the patent application attached. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view of a conventional outer rotor motor; Fig. 2 is a perspective exploded view of a motor according to a preferred embodiment of the present invention; 'Fig. 3 is a motor and impeller shown in Fig. 2 A cross-sectional view of a fan joined; and FIG. 4 is a cross-sectional view of a fan in accordance with another preferred embodiment of the present invention. Explanation of main component symbols], 2 Motor 101 Shaft tube part u, 22 Rotor 112 Iron shell 12, 21 Stator 222 Magnetic shell 24 Confined space 251 First housing 2521 Shaft tube part 29 Fastener 31 Valley 4 Heat sink fin 10 Bearing housing 102, 27a, 27b bearing 111, 221 shaft 113 magnetic ring 13 circuit board 23 drive unit 311 through hole 252 second housing 26 screw 3 impeller 32 blade 5 cover