200924354 九、發明說明： 【發明所屬之技術領域】 本發明係關於-種馬達及其轴承結構，特別關於一 種防止含油軸承漏油的馬達及其軸承結構。 【先前技術】 隨著電子產品朝向高性能、高頻率、高速度與輕薄 化的迅速發展，造成電子產品的發熱溫度越來越高，因 而容易產生不穩定現象，影響產品可靠度與使用壽命。 因此，散熱已成為電子產品的重要課題之一，而利用風 扇作為散熱裝置乃為常見的結構設置。 習知風扇中，其軸管内壁面容置一含油軸承及一轉 軸，且轉轴穿設含油軸承。為使風扇能夠平順地運轉， 含油軸承提供轉軸支撐及潤滑作用，而使風扇能夠平順 地運轉。然而，由於轉軸與含油軸承長時間的摩擦，、間 滑油受高溫而會㈣，甚至變質。㈣含油軸承的潤^ 功能會被大幅降低，更甚者會導致轉軸與含油軸承^ 死’而降低風扇的可靠度及使用壽命。 另外，當風扇高速運轉或側置運轉時，潤滑油會因 離心力及重力作用，而從含油軸承的頂面、含油轴承盘 轉軸之間的間隙及含油軸承與軸管之間的間隙等余二 漏離軸管内部，導致含油軸承内儲油不足， 、徑 扇的整體性能。 足4而降低風 【發明内容】 有鑑於上述課題，本發明之目的為提供一 、 裡施夠防200924354 IX. Description of the Invention: TECHNICAL FIELD The present invention relates to a motor and a bearing structure thereof, and more particularly to a motor for preventing oil leakage of an oil bearing bearing and a bearing structure thereof. [Prior Art] With the rapid development of electronic products toward high performance, high frequency, high speed and light weight, the heating temperature of electronic products is getting higher and higher, which is prone to instability and affects product reliability and service life. Therefore, heat dissipation has become one of the important topics of electronic products, and the use of a fan as a heat sink is a common structural arrangement. In the conventional fan, the inner wall surface of the shaft tube houses an oil bearing and a rotating shaft, and the rotating shaft is bored with an oil bearing. In order to make the fan run smoothly, the oil-impregnated bearing provides shaft support and lubrication, allowing the fan to run smoothly. However, due to the long-term friction between the rotating shaft and the oil-impregnated bearing, the lubricating oil may be subjected to high temperature (4) or even deteriorate. (4) The lubrication function of the oil-impregnated bearing will be greatly reduced, and even more, the shaft and the oil-bearing bearing will be killed, which will reduce the reliability and service life of the fan. In addition, when the fan runs at high speed or sideways, the lubricating oil will act from the top surface of the oil bearing, the gap between the oil bearing shaft and the gap between the oil bearing and the shaft tube due to centrifugal force and gravity. Leakage from the inside of the shaft tube, resulting in insufficient oil storage in the oil bearing, the overall performance of the diameter fan. In view of the above problems, the object of the present invention is to provide an adequate protection against
200924354 漏油，並提高逸離含油軸承之潤滑油回歸含 構承㈣㈣’料確健龍能的馬達及其軸承結 為達上述目的，本發明提出—種軸承結構， 二軸承結構係與一轉軸配合。軸承結構包括一軸管、一 二：承以及至少一儲油結構。含油轴承容置於軸管 二轉軸穿設含油軸承。儲油結構頂抵含油軸承，並包 至少一導引部。徑向阻隔部自軸管内 伸。導引部位於徑向阻隔部與含油 0且頂抵含油軸承。徑向阻隔部與導1；^ & 至少一儲油空間及至少1油通道。/、導成 此外，本發明另提出—種馬達，料達包括一轉子 =構、-定子結構以及-轴承結構。轉子結構具有 二::=，子結構對應設置。轴承結構設置於轉 子、·，。構與疋子結構之間’並包括一軸管、—含 油結構。軸管設置於定子結構上。含油軸承容 二於：广轉轴穿設含油軸承。儲油結構頂抵含油軸 包括-徑向阻隔部及至少一導引部。徑向阻隔部 自軸官内壁向軸管中心軸線延伸。導引部位於徑向阻隔 ，與含油抽承之間且頂抵含油轴承。徑向阻隔部與導引 邛構成至少一儲油空間及至少一回油通 、 =所述，本發明之馬達及料承結構藉由儲油結 構的徑向阻隔部及導引部形成儲油空間或回油通道。與 習知技術相較，本發明的徑向阻隔部能夠阻擋含油軸ς 6 200924354 的潤滑油因離心力及重力作用而洩漏，且導引部能夠引 導潤滑油回流含油軸承，故能夠維持含油軸承内含油量 並防止馬達因漏油而影響其性能、可靠度及使用壽命。 【實施方式】 以下將參照相關圖式，說明依據本發明較佳實施例 之馬達及其軸承結構，其中相同的元件將以相同的參照 符號加以說明。 請參照圖1所示，依據本發明第一實施例之一種馬 達1包括一轉子結構11、一定子結構12以及一軸承結 構13。 轉子結構11包括一轉軸1丨丨，轉子結構丨丨可為殼 體、葉輪或平板。以葉輪為例，轉子結構1 1更可包括 一輪轂112、複數個扇葉113、一殼體114及一磁性元 件115。扇葉113環設於輪轂112的周緣。殼體114連 結於輪轂112，且轉軸U1嵌設於輪轂112及/或殼體 114。磁性元件115呈一環狀結構，並設置於殼體114 的内表面。其中，該殼體114材料可為一導磁材料，磁 性元件115可為永久磁鐵或電磁鐵。 定子結構12與轉子結構u對應設置，並包括複數 個定子磁極121，各定子磁極121由一線圈繞設於一導 磁元件所形成，且定子磁極丨2丨與轉子結構11的磁性 几件115對應設置。一電路板14係與定子磁極i2i電 性連接’用以控制定子磁極121内的電流方向，以驅使 轉子結構11轉動，進而帶動扇葉113旋轉產生氣流。 200924354 軸承結構13設置於轉子結構11與該定子結構12 之間，並包括一軸管131、一含油轴承132及至少一儲 油結構133。 定子結構12係設置於軸管13ι上。含油軸承132 备置於軸管131内，且轉軸lu穿設含油軸承132。儲 油結構133頂抵含油軸承132，並包括一徑向阻隔部S1 及至 > 一導引部G1。請同時參照圖2所示，徑向阻隔 部si自軸管131内壁向軸管131中心軸線延伸。導引 部G1位於徑向阻隔部S1與含油軸承132之間，且頂 抵含油軸承132。並且徑向阻隔部S1與導引部⑴構成 V儲/由二間及至少一回油通道。徑向阻隔部S1能 夠阻·擋含油軸纟132的潤滑油因離心力及重力等作用 而Ά漏離開轴營1 3 1肉，道2丨^ , j神官131内，導引部G1能夠引導潤滑油回 流含油軸承13 2。 f本實施例中’徑向阻隔部S1與軸管i3i 一體成 i，導引部G1為一單獨構件μ处 簡件核於軸f⑶及徑向阻 :二。當然，上述僅為舉例’徑向阻隔部200924354 Oil leakage, and improve the return of the lubricating oil of the escaped oil bearing bearing. (4) (4) The material of the material and its bearing is the above purpose. The present invention proposes a bearing structure, a two-bearing structure and a rotating shaft. Cooperate. The bearing structure includes a shaft tube, a second bearing, and at least one oil storage structure. The oil bearing is placed on the shaft tube. The two shafts are threaded with oil bearings. The oil storage structure abuts the oil bearing and includes at least one guiding portion. The radial block extends from the shaft tube. The guiding portion is located at the radial blocking portion and the oil-containing 0 and abuts against the oil-impregnated bearing. The radial blocking portion and the guide 1; ^ & at least one oil storage space and at least one oil passage. In addition, the present invention further provides a motor that includes a rotor = structure, a stator structure, and a bearing structure. The rotor structure has two::=, and the substructures are correspondingly set. The bearing structure is set on the rotor, ·,. Between the structure and the structure of the rafter' and includes a shaft tube, an oil-containing structure. The shaft tube is disposed on the stator structure. Oil bearing capacity II: The wide rotating shaft is threaded with oil bearing. The oil storage structure abuts the oil bearing shaft including a radial blocking portion and at least one guiding portion. The radial block extends from the inner wall of the shaft to the central axis of the shaft tube. The guiding portion is located between the radial barrier and the oil-impregnated suction and abuts against the oil-impregnated bearing. The radial blocking portion and the guiding raft constitute at least one oil storage space and at least one oil return, wherein the motor and the material bearing structure of the present invention form an oil storage by the radial blocking portion and the guiding portion of the oil storage structure Space or oil return channel. Compared with the prior art, the radial blocking portion of the present invention can block the lubricating oil of the oil-containing shaft 2009 6 200924354 from leaking due to centrifugal force and gravity, and the guiding portion can guide the lubricating oil to return to the oil-containing bearing, so that the oil-bearing bearing can be maintained. Contains oil and prevents the motor from affecting its performance, reliability and service life due to oil leakage. [Embodiment] Hereinafter, a motor and a bearing structure thereof according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings, wherein the same elements will be described with the same reference numerals. Referring to Figure 1, a motor 1 according to a first embodiment of the present invention includes a rotor structure 11, a stator structure 12, and a bearing structure 13. The rotor structure 11 includes a rotating shaft 1 , and the rotor structure 丨丨 may be a casing, an impeller or a flat plate. Taking the impeller as an example, the rotor structure 1 1 further includes a hub 112, a plurality of blades 113, a casing 114 and a magnetic element 115. The fan blade 113 is disposed around the circumference of the hub 112. The housing 114 is coupled to the hub 112 and the shaft U1 is embedded in the hub 112 and/or the housing 114. The magnetic member 115 has an annular structure and is disposed on the inner surface of the housing 114. The material of the housing 114 may be a magnetic conductive material, and the magnetic element 115 may be a permanent magnet or an electromagnet. The stator structure 12 is disposed corresponding to the rotor structure u, and includes a plurality of stator poles 121. Each stator pole 121 is formed by a coil wound around a magnetic conductive component, and the stator magnetic poles 丨2丨 and the magnetic components of the rotor structure 11 are 115. Corresponding settings. A circuit board 14 is electrically coupled to the stator poles i2i to control the direction of current flow in the stator poles 121 to drive the rotor structure 11 to rotate, thereby causing the blades 113 to rotate to generate airflow. The bearing structure 13 is disposed between the rotor structure 11 and the stator structure 12 and includes a shaft tube 131, an oil bearing 132 and at least one oil reservoir structure 133. The stator structure 12 is disposed on the shaft tube 13ι. The oil-impregnated bearing 132 is placed in the shaft tube 131, and the rotating shaft lu is bored with the oil-impregnated bearing 132. The oil reservoir structure 133 abuts against the oil bearing 132 and includes a radial blocking portion S1 and a > a guiding portion G1. Referring to Fig. 2 at the same time, the radial blocking portion si extends from the inner wall of the shaft tube 131 toward the central axis of the shaft tube 131. The guide portion G1 is located between the radial blocking portion S1 and the oil-impregnated bearing 132 and abuts against the oil-impregnated bearing 132. And the radial blocking portion S1 and the guiding portion (1) constitute a V storage/division and at least one oil return passage. The radial blocking portion S1 can block and block the lubricating oil of the oil-containing shaft 纟 132 from the shaft camp 1 3 1 meat due to the action of centrifugal force and gravity, and the guide portion G1 can guide the lubrication. The oil returns to the oil-impregnated bearing 13 2 . f In the present embodiment, the radial blocking portion S1 and the shaft tube i3i are integrally formed i, and the guiding portion G1 is a separate member μ. The simple member is nucleated from the axis f(3) and the radial resistance is two. Of course, the above is only an example 'radial barrier
其他設置方式。例如，徑向阻隔部sH =二獨構件並組設於轴管⑶内壁；導』 G1可與軸管131—體成型·你 戸 ⑴可相互卜，^ 工向阻隔部81與導弓I部 ⑴-體成；：如卡設；或徑向阻隔部S1與導” 此外’徑向阻隔部SI可為—… 徑向阻隔部…與導引部二:=整= 200924354 板體。另外’徑向阻隔部S1及導引部 =，=說，導引部-可為肋條、柱體或板^ 導引。卩G1的延伸方向可為軸向延伸、斜向延伸、 曲狀延伸、鑛齒狀延伸或波浪狀延伸，只要能 油即可。 一此外，值得一提的是轉車由in❸一端部Ei呈圓滑 十’即具有一導角。如此，轉軸ηι安裝至轴管⑶ Γ 實施例中，轉轴⑴自含油軸承132鄰近儲油 ；：構133側進行安裝），轉軸⑴可藉由導角平滑地穿 :又入含油軸承132，避免轉軸⑴的端部m刮傷含油 二承132 ’而大幅提高含油軸承132的可靠度及使用壽 請參照圖3所示，其顯示本發明第二實施例的一種 二達2。與第—實施例不同之處在於馬達2更包括至少 二位件25其自轉子結構21之轉軸2ΐι朝轴管⑶ =導引部CH徑向延伸’且較佳是不與軸管i3i或導引 Γ1接觸。限位件25可與轉轴川一體成型，也可以 =連結於轉^ 211的單獨構件。限位件25可例如為 广〈體、C形垓體、板體或柱體。限位件25的材質係 =用彈性材質例如橡膠所製成。限位件h能夠提供 =外避免含油軸承132漏油的效果。此外，限位件25 時:提供轉軸2U限位的功能，可以避免轉軸川轉動 =生軸向及/或徑向移動過大，甚至脫離軸管231的 200924354 、請參照圖4所示，其顯示本發明第三實施例的一種 馬達3與第-實施例不同之處在於馬達3中，儲油結 構33j之導引部G3具有一限位件^，該限位件^係 自軸吕13 1或導引部G3徑向朝轉子結構3工之轉袖扣 ，伸，且較佳是不與轉轴311接觸^限位件％可與韩 S 131或導引部G3 一體成型’也可以為連結於轉管131 或導引部《的單獨構件。限位件％之功效與限位件 25相似，在此不予贅述。 综^請，本㈣之馬達及錄承結構藉由儲油結 構的徑向阻隔部及導引部形絲油空間或㈣通道。與 習知技術相較’本發明的徑向阻隔部能夠阻播含油軸承 的潤滑油因離心力及番七你田1 、、 重力作用而洩漏，且導引部能夠引 導潤滑油回流含油轴承’故能夠維持含油軸承内含油量 並防止馬達因漏油而影響其㈣、可靠度及使用壽命。 以上所述僅為舉例性，而非為限制性者。任 離本發明之精神與範嗨，而對其進行之等效修改或變 更，均應包含於後附之申請專利範圍中。 【圖式簡單說明】 圖1為本發明第一實施例的馬達的剖面示意圖； 圖2為圖1中之軸承結構的俯視圖； “， 以 圖3為本發明第二實施例的馬達的剖面示惫 及 圖4為本發明第三實施例的馬達的剖面示 元件符號說明： ‘"'國 10 200924354 I、 2、3 :馬達 II、 21、31 :轉子結構 III、 211、311 :轉軸 112 :輪轂 113 :扇葉 114 :殼體 115 :磁性元件 , 12:定子結構 121 :定子磁極 13 :軸承結構 131 :軸管 13 2 :含油轴承 133、333 :儲油結構 25、35 :限位件 E1 :端部 ij Gl、G3 :導引部 S1 :徑向阻隔部Other settings. For example, the radial blocking portion sH = two separate members and assembled on the inner wall of the shaft tube (3); the guide G1 can be formed integrally with the shaft tube 131. You can (1) can be mutually integrated, and the working direction blocking portion 81 and the guiding portion I (1) - Body formation;: If the card is set; or the radial blocker S1 and the guide "In addition, the radial blocker SI can be -... Radial blocker... and the guide part 2: = whole = 200924354 plate body. The radial blocking portion S1 and the guiding portion=, say, the guiding portion can be guided by the rib, the cylinder or the plate. The extending direction of the 卩G1 can be an axial extension, an oblique extension, a curved extension, a mine Tooth-like extension or wavy extension, as long as the oil can be used. In addition, it is worth mentioning that the transfer is made by the end of the in❸ Ei which is rounded ten', that is, has a lead angle. Thus, the rotating shaft ηι is attached to the shaft tube (3) 实施In the middle, the rotating shaft (1) is adjacent to the oil storage bearing 132; the 133 side is installed), the rotating shaft (1) can be smoothly worn by the leading angle: the oil bearing 132 is inserted again, and the end portion of the rotating shaft (1) is prevented from scratching the oil bearing 132' and greatly improving the reliability and service life of the oil-impregnated bearing 132, as shown in FIG. 3, which shows the second embodiment of the present invention. The second type is different from the first embodiment in that the motor 2 further includes at least two positions 25 which extend radially from the rotating shaft 2ΐ of the rotor structure 21 toward the shaft tube (3) = the guiding portion CH and preferably does not The shaft tube i3i or the guiding cymbal 1 is in contact with each other. The limiting member 25 can be integrally formed with the rotating shaft, or can be connected to a separate member of the rotating shaft 211. The limiting member 25 can be, for example, a wide body, a C-shaped body, and a plate. Body or cylinder. The material of the limiting member 25 is made of elastic material such as rubber. The limiting member h can provide the effect of avoiding oil leakage of the oil-containing bearing 132. In addition, when the limiting member 25: provides the rotating shaft 2U The function of the limit position can avoid the rotation of the shaft shaft = the axial direction and/or the radial movement is too large, even from the 200924354 of the shaft tube 231, please refer to FIG. 4, which shows a motor 3 of the third embodiment of the present invention. The first embodiment differs in that in the motor 3, the guiding portion G3 of the oil storage structure 33j has a limiting member ^ which is radially from the shaft 13 1 or the guiding portion G3 toward the rotor structure 3 The cufflinks, extensions, and preferably are not in contact with the rotating shaft 311. The limit member can be integrated with the Han S 131 or the guiding portion G3. The type ' can also be a separate member connected to the rotating tube 131 or the guiding portion. The effect of the limiting member % is similar to that of the limiting member 25, and will not be described here. Comprehensive, please, the motor and the bearing structure of the present (4) By the radial blocking portion of the oil storage structure and the guide portion shaped wire oil space or (four) channel. Compared with the prior art, the radial blocking portion of the present invention can block the lubricating oil of the oil bearing due to the centrifugal force and the Field 1, leakage due to gravity, and the guiding part can guide the lubricating oil to return to the oil-bearing bearing', so it can maintain the oil content of the oil-impregnated bearing and prevent the motor from affecting it due to oil leakage (4), reliability and service life. It is intended to be illustrative only and not limiting. The spirit and scope of the present invention are intended to be included in the scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of a motor according to a first embodiment of the present invention; FIG. 2 is a plan view of the bearing structure of FIG. 1; 4 and FIG. 4 is a cross-sectional view of a symbol of a motor according to a third embodiment of the present invention: '" 'Country 10 200924354 I, 2, 3: Motor II, 21, 31: Rotor structure III, 211, 311: Rotary shaft 112 : hub 113 : blade 114 : housing 115 : magnetic element, 12 : stator structure 121 : stator pole 13 : bearing structure 131 : shaft tube 13 2 : oil bearing 133 , 333 : oil storage structure 25 , 35 : limiting piece E1: end ij Gl, G3: guiding portion S1: radial blocking portion