201011507 九、發明說明： 【發明所屬之技術領域】 本發明關於一種散熱裝置，特別關於一種具有風扇固 * 定件之散熱裝置。 【先前技術】 隨著資3孔技術之飛速發展，電腦中央處理器之運算速 度越來越快，其產生之熱量也越來越多。若中央處理器上 ❹隹積過多之熱里無法及時排出，其運行穩定性不容置疑地 會受到影響。 業界通常在中央處理器頂面裝設一散熱器 為此 ,----抑…叫农叹一煎熟器，並 ”端設置一風扇，利用風扇與散熱器來協助排出 ^量1而’要將風職速穩固地安裝在散熱器上並非易 你=之風扇固定方法报多’其中常用地有兩種，其-係利用穿過風扇框之上下緣之長螺釘與風扇固定架配:， •=而將風扇直接_在散熱器上，達 熱二 广然而’該長螺釘之頭部抵_框上緣Si; —異音=:::平變，進 框之下緣之小螺釘與風戶^力 種係利用穿過風扇 器上。雖然風扇框之下：二，將風扇固定到散熱 之壓力，受力平衡到Γ钉頭部和風扇固定架 需要使用專用之起子頭才”fn 7旦該種固定結構之螺釘 作，操作不便。 才月匕對風扇進行安裝、拆卸等動 201011507 【發明内容】 本發明旨在提供一種使用穩定、安裝便捷之散熱裝置。 . 一種散熱裝置，包括一風扇固定架和一置於風扇固定 .架上之風扇，該風扇固定架上形成有複數凸柱，該風扇上 形成供凸柱通過之複數固定孔，該散熱裝置還包括套設在 該凸柱上並穿過該風扇之固定孔内之複數固定件，該每一 固疋件包括複數鎖合爪，鎖合爪之外侧抵靠在風扇上，鎖 ❿合爪之内侧鉗夾在風扇固定架之凸柱上。 與習知技術相比’上述散熱裝置中之固定件結構簡 單，僅利用固定件之鎖合爪就可將風扇牢固地安裝在風扇 固定架上，且安裝風扇時不需要其他器具，操作方便。 【實施方式】 請參閱圖1’本發明一實施例之散熱裝置包括一散熱器 工〇、一風扇固定架20、一風扇30及四個固定件40。該風 扇固定架20置於散熱器1〇之上，該等固定件4〇套設於風 ❿扇固定架20上並穿過風扇3〇從而將風扇3〇固定在風扇固 定架20之上。 散熱器10整體呈圓柱狀，其具有一圓柱狀之中心柱12 及沿該中心柱12之週邊呈放射狀向外延伸形成之四個導熱 分支部14,該四個導熱分支部14呈彎曲狀並對稱地分佈在 中心柱12之週邊。中心枉12及導熱分支部14向外延伸形 成複數呈片狀之散熱鰭片16,散熱鰭片16之末端處於同一 圓周面内。 風扇固定架20包括一呈管狀之外壁21。該外壁21圍 201011507 成-開口 210。風扇30產生之氣流可經由該開口 2i〇吹向 散熱器10之各個角落從而加速散熱器1〇之散熱。四肋板 28等間隔自外壁21之頂端向内水平延伸形成。外壁^之 ，頂端向外水平延伸形成四個凸耳22。每一凸耳_於兩相 鄰之肋板28之間。該等凸耳22對稱分佈在外壁21之週邊。 凸耳22與肋板28共面且與散熱器1〇之頂面平行。每一凸 耳22上於其中間位置向上凸伸形成一細長之凸柱以。每一 _凸耳22上於凸柱24之周圍形成一環形之凹槽％。外壁u 之靠近其底端位置處形成四個固转26。該等固定腳％ 呈對稱地分佈在外壁21之週邊。每-固定腳26内有一螺 絲29穿設通過，用於固定風扇固定架2〇。每一固定腳％ 與其相鄰之凸耳22互相錯開^置從而為螺絲29提供配 空間。 八 風扇3〇包括一大致呈矩形之框體31及一容置在框體 31内之轉子35。框體31具有一頂邊緣％及一底邊緣幻。 ⑩頂、底邊緣32、33之四個角上開設有四個固定孔33〇。底 邊緣33上之四個固定孔33〇與風扇固定架2〇上之四個凸 柱24相對應。風扇固定架2()上之凸柱24可穿過風扇％ =底邊緣33上之固定孔33〇從而使風扇3〇置於風扇固定 架20上。 請同時參考圖2，每—固定件4G包括—底座41及由底 座41 t央向上延伸形成之—圓筒形之配合柱42。底座μ 具有-去除頂端之圓錐體形狀，也即其圓形頂面之面積大 於其圓形底面之面積，從而使底座41能恰好容置在風扇固 8 201011507 定架20之環形凹槽25内。配合柱42頂端處具有一頂板 420。配合柱42内形成一通孔47,該通孔47向下貫穿底座 • 41。配合柱42由靠近其下端之位置開始並向上延伸設置有 - 四個均勻分佈之狹槽422，該等狹槽422貫穿頂板420，由 此配合柱42及頂板420被狹槽422分割形成四個鎖合爪 43。該等狹槽422與通孔47相連通。 每一鎖合爪43大致呈L形，其包括一彈性臂44及由 彈性臂44之末端向内水平延伸形成之一鎖合部45。彈性臂 ® 44即為配合柱42之一部分，鎖合部45即為頂板420之一 部分。鎖合部45之底面與彈性臂44之内壁面之間具有一 曲形之過度面。四個鎖合爪43互相對稱並分離設置。該等 鎖合爪43之鎖合部45面對面地設置並在中間形成一通道 452，該通道452與配合柱42内之通孔47相連通。 固定件40之配合柱42之外徑略小於風扇30之固定孔 330之内徑從而固定件40可穿過風扇30之固定孔330。固 參定件40内之通孔47之直徑與風扇固定架20上之凸柱24 之直徑相當，從而凸柱24可穿過通孔47。當固定件40之 配合柱42套設在風扇固定架20之凸柱24上之後，鎖合爪 43之彈性臂44可向外彎曲發生彈性變形。由彈性臂44之 彈性變形可產生指向鎖合部45中間之彈力，從而使鎖合部 45牢牢地鉗夾在凸柱24上。 請同時參考圖3-4，該散熱裝置組裝時，風扇固定架20 蓋設在散熱器10之上。固定件40預套設在風扇固定架20 之凸耳22之凸柱24上，其中固定件40之鎖合部45之底 9 201011507 面與凸柱24之頂面相接觸。風扇30預套妓風扇固定架 .20之凸耳22之凸柱24上’此時固定件⑽穿設在風扇％ 之底邊緣33之固定孔330内，同時固定件4〇之底座41與 .風扇3〇之底邊緣33之底面相接觸。然後，將風扇30與固 定件4〇 一起沿著凸柱24向下按壓，使固定件40之底座41 谷置在風扇固定架20之凹槽25内，且風扇％之底邊緣^ 與風扇固定冑20相接觸。此時，鎖合爪43之外侧，也即 ❹鎖合爪43之彈性臂44抵靠在風扇3〇之底邊緣％之上端， 鎖^爪43之内側，也即鎖合爪43之鎖合部45*夾在風扇 固定架20之凸棱24卜，外二&， 狂上從而防止風扇30從凸柱24上滑 出。 更詳盡地說，在向下按壓風扇30與固定件40時，風 扇固疋架20上之凸柱24依次通過固定件4〇内之通孔47 及鎖口 4 45之間之通道452。由於通道452較小，使得鎖 口爪43之彈性臂44向外擴張發生彈性變形，從而產生指 φ向各1鎖合部45中間之彈力。此時，鎖合爪^之彈性臂 44抵靠在風扇％之底邊緣33之上端防止風扇崎固定件 =^脫落出纟’而鎖合爪43之鎖合部衫則钳夾在風扇固 疋架0之凸柱24上防止固定件4〇從風扇固定架之凸 柱24上脫落出來’從而使風扇3〇牢固地固定在風扇固定 架20上。另外，由於固定件4〇還在其底端設置有盥 3〇之底邊緣33鎖合之底座41，可進一步防止固定件、扣從 風扇固定架20之凸柱24上麟出來；另—方面，通過底 座41和彈性臂44分別抵靠在風扇30之底邊緣33之上下 201011507 兩端，可使風扇30更加牢靠地固定在風扇固定架20上。 綜上所述，本發明符合發明專利要件，爰依法提出專 ' 利申請。惟，以上所述者僅為本發明之較佳實施例，舉凡 •熟悉本案技藝之人士，在爰依本發明精神所作之等效修飾 或變化，皆應涵蓋於以下之申請專利範圍内。 【圖式簡單說明】 圖1為本發明散熱裝置之立體分解圖。 圖2為圖1中之一固定件之放大圖，其中該固定件之 一鎖合爪被移除以顯示該固定件之内部結構。 圖3為本發明散熱裝置之立體組合圖。 圖4為沿圖3中IV-IV線之剖視圖。 【主要元件符號說明】 散熱器 10 中心柱 12 導熱分支部 14 散熱鰭片 16 風扇固定架 20 外壁 21 開口 210 凸耳 22 凸柱 24 凹槽 25 固定腳 26 肋板 28 螺絲 29 風扇 30 框體 31 頂邊緣 32 底邊緣 33 固定孔 330 轉子 35 固定件 40 底座 41 配合柱 42 π 201011507 頂板 420 狹槽 422 鎖合爪 43 彈性臂 44 ' 鎖合部 45 通道 452 • 通孔 47 12201011507 IX. Description of the Invention: [Technical Field] The present invention relates to a heat dissipating device, and more particularly to a heat dissipating device having a fan fixing member. [Prior Art] With the rapid development of the 3-hole technology, the computer central processing unit is operating faster and faster, and the amount of heat generated is also increasing. If the hoarding of too much heat on the central processor is not possible in time, its operational stability will undoubtedly be affected. The industry usually installs a heat sink on the top surface of the central processor. For this reason, it is called a sigh of a sigh, and a fan is installed at the end, and a fan and a radiator are used to assist the discharge. It is not easy to install the wind speed on the radiator. It is usually used in two ways. It is commonly used in two ways. It is equipped with a long screw that passes through the upper edge of the fan frame and the fan holder: , •= and the fan directly _ on the heat sink, the heat is wide and wide, however, the head of the long screw is offset to the upper edge of the frame Si; — the abnormal sound =::: flat, the lower edge of the frame Use the wind turbine to pass through the fan. Although the fan frame is below: Second, the fan is fixed to the heat-dissipating pressure, and the force balance to the nail head and the fan holder requires the use of a dedicated screwdriver." Fn 7 denim screws of this kind of fixing structure are inconvenient to operate. The invention relates to the installation, disassembly and the like of the fan. 201011507 SUMMARY OF THE INVENTION The present invention aims to provide a heat dissipating device which is stable in use and convenient to install. A heat dissipating device includes a fan fixing frame and a fan disposed on the fan fixing frame. The fan fixing frame is formed with a plurality of protruding columns, and the fan forms a plurality of fixing holes through which the protruding columns pass, and the heat dissipating device further The utility model comprises a plurality of fixing members sleeved on the protruding post and passing through the fixing holes of the fan, each fixing member comprises a plurality of locking claws, the outer side of the locking claw abuts against the fan, and the locking claws are matched The inner jaw is clamped to the stud of the fan holder. Compared with the prior art, the fixing member in the above heat dissipating device has a simple structure, and the fan can be firmly mounted on the fan fixing frame only by the locking claws of the fixing member, and no other device is required when the fan is installed, and the operation is convenient. [Embodiment] Referring to Figure 1 of the present invention, a heat sink device includes a heat sink, a fan holder 20, a fan 30, and four fixing members 40. The fan holder 20 is placed above the heat sink 1 , and the fixing members 4 are sleeved on the fan holder 20 and passed through the fan 3 to fix the fan 3 to the fan holder 20 . The heat sink 10 has a cylindrical shape as a whole, and has a cylindrical central column 12 and four heat conducting branch portions 14 extending radially outward along the periphery of the central column 12. The four heat conducting branch portions 14 are curved. And distributed symmetrically around the center column 12. The central crucible 12 and the thermally conductive branch portion 14 are outwardly extended to form a plurality of fins 16 having fins, and the ends of the fins 16 are in the same circumferential surface. The fan mount 20 includes a tubular outer wall 21. The outer wall 21 encloses 201011507 into an opening 210. The airflow generated by the fan 30 can be blown to the corners of the heat sink 10 through the opening 2i to accelerate the heat dissipation of the heat sink. Four ribs 28 are equally spaced from the top end of the outer wall 21 to extend horizontally inwardly. The outer wall is horizontally extended to form four lugs 22. Each lug is between two adjacent ribs 28. The lugs 22 are symmetrically distributed around the outer wall 21. The lug 22 is coplanar with the rib 28 and parallel to the top surface of the heat sink 1〇. Each of the lugs 22 projects upwardly at its intermediate position to form an elongated post. An annular groove % is formed on each of the lugs 22 around the studs 24. Four fixed turns 26 are formed at the position of the outer wall u near its bottom end. The fixed feet % are symmetrically distributed around the outer wall 21. A screw 29 is passed through each of the fixing legs 26 for fixing the fan holder 2''. Each of the fixed feet % is offset from the adjacent lugs 22 to provide a space for the screws 29. The eight fan 3 includes a substantially rectangular frame 31 and a rotor 35 housed in the frame 31. The frame body 31 has a top edge % and a bottom edge illusion. Four fixing holes 33 are opened in the four corners of the top 10 and bottom edges 32 and 33. The four fixing holes 33' on the bottom edge 33 correspond to the four projections 24 on the fan holder 2''. The boss 24 on the fan holder 2 () can pass through the fixing hole 33 of the fan % = bottom edge 33 so that the fan 3 is placed on the fan holder 20. Referring to FIG. 2 at the same time, each of the fixing members 4G includes a base 41 and a cylindrical fitting post 42 extending from the bottom of the base 41. The base μ has a shape of a cone that removes the tip, that is, the area of the circular top surface is larger than the area of the circular bottom surface, so that the base 41 can be properly accommodated in the annular groove 25 of the fan 20 201011507 fixed frame 20 . A top plate 420 is provided at the top end of the mating column 42. A through hole 47 is formed in the mating column 42, and the through hole 47 extends downward through the base 41. The mating post 42 starts from a position near the lower end thereof and extends upwardly with four uniformly spaced slots 422 which extend through the top plate 420, whereby the mating post 42 and the top plate 420 are divided by the slot 422 to form four Locking claws 43. The slots 422 are in communication with the through holes 47. Each of the locking claws 43 is substantially L-shaped and includes a resilient arm 44 and a latching portion 45 extending horizontally inwardly from the distal end of the resilient arm 44. The resilient arm ® 44 is part of the mating post 42 and the latch 45 is part of the top plate 420. The bottom surface of the locking portion 45 and the inner wall surface of the resilient arm 44 have a curved outer surface. The four locking claws 43 are symmetrical to each other and are disposed separately. The latching portions 45 of the latching claws 43 are disposed face to face and form a passage 452 in the middle which communicates with the through hole 47 in the mating post 42. The outer diameter of the mating post 42 of the fixing member 40 is slightly smaller than the inner diameter of the fixing hole 330 of the fan 30 so that the fixing member 40 can pass through the fixing hole 330 of the fan 30. The diameter of the through hole 47 in the fixed member 40 is comparable to the diameter of the stud 24 on the fan holder 20 so that the stud 24 can pass through the through hole 47. After the engaging post 42 of the fixing member 40 is sleeved on the boss 24 of the fan holder 20, the elastic arm 44 of the locking claw 43 can be bent outward to be elastically deformed. The elastic deformation of the resilient arm 44 produces an elastic force directed toward the middle of the locking portion 45, so that the locking portion 45 is firmly clamped to the stud 24. Referring to FIG. 3-4 at the same time, when the heat sink is assembled, the fan holder 20 is covered on the heat sink 10. The fixing member 40 is pre-set on the boss 24 of the lug 22 of the fan holder 20, wherein the bottom surface of the locking portion 45 of the fixing member 40 is in contact with the top surface of the boss 24. The fan 30 is pre-set on the protrusion 24 of the lug 22 of the fan holder. The fixing member (10) is disposed in the fixing hole 330 of the bottom edge 33 of the fan, and the base 41 of the fixing member 4 is. The bottom surface of the bottom edge 33 of the fan 3 is in contact. Then, the fan 30 is pressed down along the protrusion 24 together with the fixing member 4, so that the base 41 of the fixing member 40 is placed in the groove 25 of the fan holder 20, and the bottom edge of the fan is fixed to the fan.胄20 is in contact. At this time, the outer side of the locking claw 43, that is, the elastic arm 44 of the locking claw 43, abuts against the upper end of the bottom edge of the fan 3, and the inner side of the locking claw 43, that is, the locking claw 43 is locked. The portion 45* is sandwiched between the ribs 24 of the fan holder 20, and the outer two & mad, thereby preventing the fan 30 from slipping out of the studs 24. More specifically, when the fan 30 and the fixing member 40 are pressed downward, the boss 24 on the fan fixing frame 20 sequentially passes through the passage 452 between the through hole 47 in the fixing member 4 and the lock port 45. Since the passage 452 is small, the elastic arms 44 of the lock pawl 43 are elastically deformed outwardly, thereby generating an elastic force of the finger φ to the middle of each of the lock portions 45. At this time, the elastic arm 44 of the locking claw ^ abuts against the upper end 33 of the bottom edge 33 of the fan to prevent the fan-stable fixing member from falling off, and the locking portion of the locking claw 43 is clamped to the fan. The boss 24 of the frame 0 prevents the fixing member 4 from coming off the boss 24 of the fan holder, so that the fan 3 is firmly fixed to the fan holder 20. In addition, since the fixing member 4 is also provided with a base 41 whose bottom edge 33 is locked at the bottom end thereof, the fixing member and the buckle are further prevented from coming out from the boss 24 of the fan holder 20; The fan 30 and the elastic arm 44 respectively abut against the upper end of the bottom edge 33 of the fan 30 at the lower end of 201011507, so that the fan 30 can be more firmly fixed on the fan holder 20. In summary, the present invention complies with the requirements of the invention patent, and proposes a special application for the benefit of the law. However, the above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be covered by the following claims. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view of a heat sink according to the present invention. Fig. 2 is an enlarged view of one of the fixing members of Fig. 1, wherein a locking claw of the fixing member is removed to show the internal structure of the fixing member. 3 is a perspective assembled view of a heat sink of the present invention. Figure 4 is a cross-sectional view taken along line IV-IV of Figure 3. [Main component symbol description] Heatsink 10 Center post 12 Thermal branch 14 Heat sink fin 16 Fan mount 20 Outer wall 21 Opening 210 Lug 22 Post 24 Groove 25 Fixing foot 26 Rib 28 Screw 29 Fan 30 Frame 31 Top edge 32 bottom edge 33 fixing hole 330 rotor 35 fixing member 40 base 41 mating post 42 π 201011507 top plate 420 slot 422 locking claw 43 resilient arm 44 'locking portion 45 passage 452 • through hole 47 12