1333828 099年08月27日按正替换頁 六、發明說明： 【發明所屬之技術領域】 1 [0001] 本發明涉及一種散熱裝置，尤係一種對電子元器件散熱 之散熱裝置組合。 【先前技術】 [0002] 諸如電腦中央處理器、北橋晶片、顯卡等高功率電子元 器件在運行時會產生大量的熱量，這些熱量如果不能被 有效地散去，將直接導致溫度急劇上升，而嚴重影響到 電子元器件的正常運行。為此，需要散熱裝置或其組合 來對這些電子元器件進行散熱。 [0003] 中國大陸專利第00239560. 6號揭示了一種·散熱裝置組合 ，其包括一散熱器及一扣合裝置。該散熱器包括一基座 及複數由基座向上延伸出之鰭片》該等鰭片集中於基座 之中部而在基座兩側形成二肩部。該扣合裝置包括一固 定模組及二扣具。每一扣具兩端形成二扣腳，其中每一 扣腳開設有一扣孔及一作動孔。固定模組四角處向外形 成四扣鉤。組裝時，首先將固定模組置於電子元器件之 上；然後將二扣具置於散熱器基座之二肩部，使位於扣 具一端扣腳之扣孔與固定模組相應之扣鉤相扣合；再將 起子等工具插入扣具另一端之作動孔内，樞轉所述另一 端之扣腳，直至所述另一端之扣孔與固定模組另外之扣 鉤相扣合，從而將散熱器固定於電子元器件之上。 [0004] 但是，此類散熱器需要在基座兩側形成二肩部以為扣具 提供放置的空間，由此，所述鰭片不能完全覆蓋住整個 基座，使散熱器之散熱效率受到影響；且，組裝該散熱 096135425 表單編號A0101 第4頁/共24頁 0993309502-0 1333.828 - 099年08月27日梭正替換頁 裝置組合時需要使用相應之工具，過程較為繁瑣。 【發明内容】 * [0005] 一種散熱裝置組合，用於對安裝於電路板上之電子元器 件散熱，其包括一置於電子元器件上之散熱器、一圍繞 散熱器底部且固定至電路板之固定模組、及一將散熱器 固定至固定模組内之扣合裝置，該扣合裝置包括二分別 固定至散熱器頂部兩側之固定部、二分別樞接於該二固 定部之扣合部、及一柩接至該二固定部之作動部，該作 動部可繞固定部樞轉而帶動扣合部旋轉至與固定模組扣 合。 [0006] 與習知技術相比，本發明散熱裝，置組合之固定部安裝於 ·-<% »·. ：* - - -，： '·. 散熱器頂部，不需額外佔用散熱:器之空間，可使散熱器 獲得較高之散熱效率；且，組裝散熱裝置組合時只需將 作動部繞固定部樞轉即可使扣合部與固定模組扣合，不 必借助於其他的工具，過程較為确捷。 【實施方式】 [0007] 如圖1所示，本發明之散熱裝置組合是用於安裝在中央處 理器等發熱電子元器件（圖未示）上以對其進行散熱。 該電子元器件安裝於一電路板3 0的中部區域。 [0008] 請參閱圖2，該散熱裝置組合包括一設置於電子元器件上 之散熱裝置10及一將散熱裝置10固定於電路板30上之扣 合裝置20。該散熱裝置10包括一散熱器12、一環繞散熱 器12底部週邊之固定模組14、一安裝於散熱器12頂部之 固定片16、及一固定於固定片16上之風扇18。該散熱器 12包括一矩形的基座（圖未標）及複數自基座垂直向上 096135425 表單編號A0101 第5頁/共24頁 0993309502-0 1333828 099年08月27日梭正替換頁 延伸之鰭片120，該基座與電子元器件接觸而將其產生的 熱量傳導至鰭片120上。該固定模組14由四矩形側壁140 、142首位相接而成，其中相對之二側壁140相互平行且 垂直於另外二侧壁142，從而共同將散熱器12之基座收容 於其所圍設出之空間内。每一側壁142向外延伸出三扣鉤 144，用於與扣合裝置20相扣合；又，每一側壁142向下 延伸出一扣腳146，用於穿過電路板30以將固定模組14固 定至電路板30上。該固定片16通過螺絲（圖未標）安裝 於鰭片120頂部，其中部開設一開口（圖未標），供氣流 通過；其前後兩側的每一側均開設二穿孔（圖未示）， 供扣合裝置20的相應結構穿過。該風扇18固定至固定片 . ' + . S· 16上，其出風口朝向散熱器12，以將產生之氣流吹至鰭 片120，從而對散熱器12進行散熱。 [0009] 該扣合裝置2 0包括二分別結合至固定片1 6前後兩側之固 定部24、二分別枢接於二固定部24且設置於散熱器12前 後兩側之扣合部26、及一柩接於二固定部24之作動部22 。請參閱圖3和圖4，每一固定部24包括一矩形之底板240 、二自底板240前後兩側分別垂直向上延伸之側板241、 242、一自一側板241垂直向後延伸之第一支撐片244、 及一自另一側板242垂直向後延伸且超出該側板241之第 二支撐片246。該底板240中部開設一開口（圖未示）， 供作動部22的相應結構穿過；其左右兩側分別向下垂直 延伸出二扣腳2402。每一扣腳2402均包括一結合至底板 240之桿部（圖未標）及一結合至該桿部底端之扣帽（圖 未標），一凹槽（圖未標）貫穿每一扣帽且終止於相應 096135425 表單編號A0101 第6頁/共24頁 0993309502-0 I333S28 099年08月27日修正替換頁1333828 On August 27, 099, according to the replacement page. 6. Description of the Invention: [Technical Field of the Invention] 1 [0001] The present invention relates to a heat dissipating device, and more particularly to a heat dissipating device combination for dissipating heat from electronic components. [Prior Art] [0002] High-power electronic components such as computer central processing units, north bridge chips, and graphics cards generate a large amount of heat during operation. If this heat cannot be effectively dissipated, it will directly cause a sharp rise in temperature. Seriously affect the normal operation of electronic components. To this end, heat sinks or combinations thereof are required to dissipate these electronic components. [0003] Chinese Patent No. 00239560. 6 discloses a heat sink assembly comprising a heat sink and a fastening device. The heat sink includes a base and a plurality of fins extending upward from the base. The fins are concentrated in the middle of the base and form two shoulders on both sides of the base. The fastening device comprises a fixed module and two buckles. Each of the buckles has two fastening legs, and each of the fastening legs has a fastening hole and an operating hole. The four corners of the fixed module form a four-hook hook. When assembling, first place the fixed module on the electronic component; then place the two fasteners on the shoulders of the heat sink base, so that the buckle hole at the end of the buckle has a buckle corresponding to the fixed module Inserting a tool such as a screwdriver into the movable hole at the other end of the buckle, and pivoting the buckle of the other end until the button hole of the other end is engaged with the other hook of the fixing module, thereby Fix the heat sink on top of the electronic components. [0004] However, such a heat sink needs to form two shoulders on both sides of the base to provide a space for the buckle to be placed, whereby the fins cannot completely cover the entire base, so that the heat dissipation efficiency of the heat sink is affected. And, the heat dissipation 096135425 Form No. A0101 Page 4 / Total 24 Page 0993309502-0 1333.828 - On August 27, 099, the shuttle is replacing the page device combination, the corresponding tool is needed, and the process is cumbersome. SUMMARY OF THE INVENTION [0005] A heat sink assembly for dissipating heat from an electronic component mounted on a circuit board includes a heat sink disposed on the electronic component, a bottom surrounding the heat sink, and fixed to the circuit board The fixing module and the fastening device for fixing the heat sink to the fixing module, the fastening device comprises two fixing portions respectively fixed to the two sides of the top of the heat sink, and two buckles respectively pivotally connected to the two fixing portions The engaging portion and the actuating portion connected to the two fixing portions are pivotable about the fixing portion to drive the engaging portion to rotate to be engaged with the fixing module. [0006] Compared with the prior art, the heat dissipating device of the present invention has a fixed portion mounted on the surface of the heat sink, which does not require additional heat dissipation: The space of the device can achieve higher heat dissipation efficiency of the heat sink; and, when assembling the heat dissipating device, only the pivoting portion of the actuating portion is pivoted around the fixing portion to fasten the fastening portion and the fixed module without resorting to other Tools, the process is more accurate. [Embodiment] As shown in Fig. 1, the heat sink assembly of the present invention is mounted on a heat-generating electronic component (not shown) such as a central processing unit to dissipate heat. The electronic component is mounted on a central portion of a circuit board 30. Referring to FIG. 2, the heat sink assembly includes a heat sink 10 disposed on the electronic component and a fastening device 20 for fixing the heat sink 10 to the circuit board 30. The heat sink 10 includes a heat sink 12, a fixed module 14 surrounding the bottom periphery of the heat sink 12, a fixing piece 16 mounted on the top of the heat sink 12, and a fan 18 fixed to the fixing piece 16. The heat sink 12 includes a rectangular base (not shown) and a plurality of self-base vertical upwards 096135425 Form No. A0101 Page 5 / Total 24 pages 0993309502-0 1333828 August 27, 2017 Shuttle replacement page extended fin The chip 120 is in contact with the electronic component to conduct heat generated thereby to the fin 120. The fixing module 14 is formed by the first rectangular sidewalls 140 and 142 being connected in the first position, wherein the opposite sidewalls 140 are parallel to each other and perpendicular to the other two sidewalls 142, thereby collectively accommodating the base of the heat sink 12 therein. Out of the space. Each of the side walls 142 extends outwardly from the three fastening hooks 144 for engaging with the fastening device 20; further, each of the side walls 142 extends downwardly from a fastening leg 146 for passing through the circuit board 30 to fix the mold. Group 14 is secured to circuit board 30. The fixing piece 16 is mounted on the top of the fin 120 by screws (not shown), and an opening (not shown) is provided in the middle portion for airflow; two perforations are formed on each side of the front and rear sides (not shown). The corresponding structure of the fastening device 20 passes through. The fan 18 is fixed to the fixing piece. On the 'S.16', the air outlet faces the heat sink 12 to blow the generated airflow to the fins 120, thereby dissipating heat from the heat sink 12. The fastening device 20 includes two fastening portions 24 respectively coupled to the front and rear sides of the fixing piece 16 , and two fastening portions 26 respectively pivotally connected to the two fixing portions 24 and disposed on the front and rear sides of the heat sink 12 . And an actuating portion 22 connected to the two fixing portions 24. Referring to FIG. 3 and FIG. 4 , each fixing portion 24 includes a rectangular bottom plate 240 , two side plates 241 and 242 extending vertically from the front and rear sides of the bottom plate 240 , and a first supporting piece extending vertically from the side plate 241 . 244, and a second support piece 246 extending vertically rearward from the other side plate 242 and beyond the side plate 241. An opening (not shown) is defined in the middle of the bottom plate 240, and the corresponding structure of the actuating portion 22 is passed through; the left and right sides of the bottom plate 240 extend perpendicularly downwardly from the two fastening legs 2402. Each of the fastening pins 2402 includes a shank (not labeled) coupled to the bottom plate 240 and a buckle cap (not labeled) coupled to the bottom end of the shank, and a groove (not labeled) extends through each buckle. Cap and terminate at the corresponding 096135425 Form No. A0101 Page 6 / Total 24 Page 0993309502-0 I333S28 Correction replacement page on August 27, 099
Tf 桿部之下部，以為扣帽提供一橫向的彈力，由此，當扣 腳2402穿過内徑小於其扣帽外徑之穿孔時，扣帽之兩側 將被擠壓從而使扣腳2402順利穿過固定片16。一通槽貫 穿二側板241、242之中部，從而在二側板241、242上分 別形成二圓孔2420，以收容作動部22的相應結構。每一 側板241、242之内壁上部開設一楔形之缺口 2422，其中 該缺口 2422靠近相應之圓孔2420，以方便作動部22之相 應結構沿該缺口 2422滑入圓孔2420内》該第一支樓片 244靠近側板241之缺口 2422，其上部延伸超出該側板 241。第二支撐片246連接該二側板241、242之右端，其 向後延伸超出另一側板242之部分與，一皂撐片244之構 造相同。另一通槽貫穿第一支撐片和第二支撐片246 ! 1. r ^ 、 之上部，從而形成二對齊之圓孔2440、2460。第一及第 二支撐片244、246分別在靠近二圓孔2440、2460之上方 開設二相對之楔形缺口 2442、2462，其中每一缺口 2442 、2462之深度自上至下逐漸減小，以引導作動部22的相 應結構沿缺口 2442、2462之内壁滑入圓孔2440、2460 内。一彈簧2424 (如圖6)固定至一側板241上且位於第 一和第二支撐片244、246之間，以為扣合部26提供一向 外的彈力。 [0010] 請參閱圖2至圖4，該作動部22樞接於二固定部24上，其 包括一把手220、二分別形成於把手220兩端之第一凸輪 224、及二分別形成於二第一凸輪224外側之第二凸輪 226 °每一第一凸輪224大致呈橢圓形，其傾斜地形成於 把手220之末端。將第一凸輪224遠離把手220之末端 096135425 表單編衆A0101 第7頁/共24頁 0993309502-0The lower portion of the Tf portion provides a lateral elastic force for the buckle cap. Thus, when the buckle 2402 passes through the perforation having an inner diameter smaller than the outer diameter of the buckle cap, the two sides of the buckle cap will be squeezed so that the buckle foot 2402 Pass through the fixed piece 16 smoothly. A through groove penetrates the middle of the two side plates 241, 242, so that two circular holes 2420 are formed in the two side plates 241, 242, respectively, to accommodate the corresponding structure of the actuating portion 22. A wedge-shaped notch 2422 is defined in the upper portion of the inner wall of each of the side plates 241, 242, wherein the notch 2422 is adjacent to the corresponding circular hole 2420, so that the corresponding structure of the actuating portion 22 slides into the circular hole 2420 along the notch 2422. The floor 244 is adjacent to the notch 2422 of the side panel 241, the upper portion of which extends beyond the side panel 241. The second support piece 246 is connected to the right end of the two side plates 241, 242, and the portion extending rearward beyond the other side plate 242 is identical to the structure of a soap stay 244. The other through groove penetrates the upper portion of the first support piece and the second support piece 246 ! 1. r ^ , thereby forming two aligned circular holes 2440, 2460. The first and second supporting pieces 244 and 246 respectively open opposite wedge-shaped notches 2442 and 2462 near the two circular holes 2440 and 2460, wherein the depth of each of the notches 2442 and 2462 is gradually decreased from top to bottom to guide. The corresponding structure of the actuating portion 22 slides into the circular holes 2440, 2460 along the inner walls of the notches 2442, 2462. A spring 2424 (Fig. 6) is secured to the side panel 241 and between the first and second support tabs 244, 246 to provide an outward resilient force to the latching portion 26. [0010] Referring to FIG. 2 to FIG. 4, the actuating portion 22 is pivotally connected to the two fixing portions 24, and includes a handle 220, two first cams 224 respectively formed at two ends of the handle 220, and two first formed in the second A second cam 226 ° outside the cam 224 is generally elliptical in shape, and is formed obliquely at the end of the handle 220. Keeping the first cam 224 away from the end of the handle 220 096135425 Form Editor A0101 Page 7 of 24 0993309502-0
L 1333828 099年08月27日倐正替換頁 2240至第一凸輪224之圓心定義為第一凸輪224之長軸， 那麼該長軸與把手220形成之内角為一略大於90度之鈍角 。該第二凸輪2^6座落於第一凸輪之外側224 ’其具有一 抵壓部2260超出第一凸輪224之外緣，其餘部分則落在第 一凸輪224的外緣之内。該第二凸輪226之抵壓部2260與 該第一凸輪224之末端2240朝向大致相反，二者間形成一 略小於180度之夹角》二樞接桿228分別自每一端之第一 凸輪224及第二凸輪226之内外兩側反向延伸而出，其中 —樞接桿228位於第一凸輪224之圓心處而使第一凸輪 224之末端2240至該枢接桿228之距離大於第一凸輪224 之其他部分至該框接桿228之距離，另一樞接桿228則位 於遠離第二凸輪226抵壓部2260之位置而使第二凸輪226 之抵壓部2260至該另一樞接桿228之距離大於第二凸輪 226之其他部分至該另一樞接桿228之距離。該四框接桿 228相互共線，以沿固定部24之缺〇 2422滑入圓孔242〇 内，進而將作動部22樞接於固定部24 (如圖4)。 [0011] 如圖2及圖5-6所示，該二扣合部26分別枢接於二固定部 24上’每一扣合部26包括一扣板260、一形成於扣板26〇 頂部之轉轴262、及一自轉軸262水平向前延伸出之受壓 板264 *該扣板260之下部、中部、及上部之寬度依&遞 減，其下部開設三相互間隔之方孔2600，以供固定模組 14之扣鉤144卡扣；其中部開設一面積較大之通口⑺⑽ ，從而當扣板2 6 0與固定模組14相扣合時，該二扣板2 6 〇 不致擋住從散熱器12前後兩側所吹出之氣流。該扣板 前側之一部分向後凹限出一方形之凹槽2604 ,進而相應 096135425 表單編號A0101 第8頁/共24頁 0993309502-0 1333828 ^_ 099年08月27日接正替換頁 地在扣板260之後侧凸伸出一凸部2606。該凹槽2604位 於通口 2602之上方且與該通口 2602相連通，以收容固定 部24之彈簧2424。轉軸262平行於電路板3〇 ,其左右兩 端延伸超出扣板260之頂部，以卡入固定部24相應之圓孔 2440、2460内》該受壓板264大致呈“L”形，其面積較 大之一部分結合至轉轴262，其面積較小之—部分則遠離 轉軸262。該受麼板264用於與作動部22第二凸輪226之 抵壓部2260相接觸，由此’當作動部22轉動時，其抵壓 部2260可驅動該受壓板264而帶動扣板260樞轉。 [〇〇12] 請一併參閱圖2至圖9，組裝該散熱裝置組合時，首先， 將固定模組14之二扣腳146穿;過邊路梅;3¾而將固定模組 14固定至電路板30上；然後’將已預^好固;定片丨6及風 扇18之散熱器12置於電子元器件上、使i基座與電子元 器件接觸且收容於固定模組14所圍設出之空間内；, 之後 ，將二固定部24之扣腳2402分別穿過固定片16兩侧之穿 孔，而將二固定部24分別固定至固定片16前後兩侧此 時風扇18夾置於二固定部24之間；隨後，將作動部22之 枢接桿228沿固定部24之缺口 2422向下滑動，直至拖接 桿228卡入固定部24之圓孔2420内，此時作動部22 一及第二凸輪224、226夾置於固定部24之二側板241、 242之間；再將作動部22之把手220調整至豎直位置， 罝，使 其朝向上方，此時第一凸輪224位於固定部24之開口之正 上方，其末端2240大致朝向一水平方向，第二凸輪226之 抵壓部2260大致朝向與水平方向相反之另一水平方向 又，將扣合部26之轉軸262沿固定部24第一及第二支俨片 096135425 表單編號A0101 第9頁/共24頁 〇的33〇95〇2-0 1333828 « 099年08月27日按正替換頁 244 ' 246之缺口 2442、2462自上而下滑入其圓孔2440 、2460内’使其受壓板264位於第二凸輪226之正上方而 覆蓋住第二凸輪226 ’此時固定部24之彈簧2424抵靠於 扣合部26凹槽2604之内壁而頂住扣板26〇，使扣板260之 下部與固定模組14隔開一段距離，即如圖7中所示之二扣 板260傾斜地置於散熱器12兩側；最後，扳動作動部22之 把手220繞樞接桿228向下旋轉，在如圖8所示之過程中， 由於第二凸輪226之偏心作用，其抵壓部2260由水平位置 向上逐漸旋轉至抵壓於扣合部26之受壓板264，然後驅動 該受壓板264繞轉轴262向上轉動，進而，扣合部26之扣 板26 0被受壓板264所帶動而繞轉釉262向下旋轉至壓縮 ;人 ： 、 固定部24之彈簧2424，直至固定模組14之扣鉤144穿入 扣板260之方孔2600内，與此同時，第一凸輪224之末端 2240在偏心作用下向下旋轉，其穿過固定部24底板240 之開口而抵壓固定片16，進而，與固定片16發生干涉而 將固定部24連帶扣合部26—同向上抬起，由於固定部24 扣腳2402之牽制（即扣腳2402之扣帽將會抵靠於固定片 16而限制固定部24之上移），固定部24只能向上抬高一 小段距離而使固定模組14之扣鉤14 4與扣板2 6 0之方孔 2600部分卡扣》當把手旋轉至如圖9所示之原第一凸輪 224之末端2240所朝向之水平位置時，第二凸輪226之抵 壓部2260朝向上方而使固定模組14之扣鉤144完全卡入 扣板260之方孔2600内，最大限度地壓縮彈簧2424，使 其彈性形變達到最大；第一凸輪224之末端2240朝向下方 而下壓固定片16，使散熱器12與電子元器件緊密接觸。 由此，扣合裝置20將散熱裝置10牢固地固定至電子元器 096135425 表單編號A0101 第10頁/共24頁 0993309502-0 1333828 099年08月27日梭正替换頁 [0013] [0014] [0015] [0016] [0017] [0018] [0019] [0020] [0021] [0022] 096135425 件上。 拆解該散熱裝置組合時，只需將把手220由水平位置旋轉 至朝上之豎直位置，扣合裝置20之各部件將產生與組裝 時相反之過程，直至恢復至各自組裝前之位置，即而完 成了拆解過程。 本發明散熱裝置組合之固定部24安裝於散熱器12頂部之 固定片16上，不需額外佔用散熱器12之空間，從而可在 基座上形成足夠多之鰭片120，使散熱器12獲得較高之散 熱效率；且，組裝散熱裝置組合時只需將作動部22繞固 定部24樞轉即可使扣合部26與固定模組14扣合，不必借 助於其他的工具，過程較為簡捷。 綜上該，本發明符合發明專利要件，爰依法提出專利申 請。惟，以上該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係本發明散熱裝置組合之立體組裝圖。 圖2係圖1之部分分解圖。 圖3係圖1中扣合裝置之立體放大圖。 圖4係圖3中左側固定部之立體放大圖。 圖5係圖3中左侧扣合部之立體放大圖。 圖6係圖3之部分分解圖。 圖7係圖1之側視圖，此時扣合裝置處於未扣合狀態。 表單編號A0101 第11頁/共24頁 0993309502-0 1333828 099年08月27日梭正替換頁 [0023] 圖8係圖1另一角度之視圖，此時扣合裝置處於半扣合狀 態。 [0024] 圖9係圖1另一角度之視圖，此時扣合裝置處於扣合狀態 [0025] 【主要元件符號說明】 散熱裝置：10 [0026] 散熱器：12 [0027] 鰭片：120 [0028] 固定模組：14 [0029] 側璧：140、142 [0030] 扣鉤：14 4 [0031] 扣腳：146、2402 [0032] 固定片：16 [0033] 風扇：18 [0034] 扣合裝置：20 [0035] 作動部：22 [0036] 把手：220 [0037] 第一凸輪：224 [0038] 末端：2240 [0039] 第二凸輪：226 096135425 表單編號A0101 第12頁/共24頁 0993309502-0 1333828 |_叩日紐娜 [0040] 抵壓部：2260 [0041] 框接桿：228 [0042] 固定部：24 [0043] 底板：240 [0044] 側板：241、242 [0045] 圓孔：2420、2440 ' 2460 [0046] 缺口 ： 2422、2442 、2462 [0047] 彈簧：2424 [0048] 第一支撐片：244 [0049] 第二支撐片：246 [0050] 扣合部：26 [0051] 扣板：2 6 0 [0052] 方孔：2600 [0053] 通口 ： 2602 [0054] 凹槽：2604 [0055] 凸部：2606 [0056] 轉軸：262 [0057] 受壓板：264 096135425 表單編號A0101 第13頁/共24頁 0993309502-0L 1333828 On August 27, 099, the center of the replacement page 2240 to the first cam 224 is defined as the long axis of the first cam 224, and the inner angle formed by the long axis and the handle 220 is an obtuse angle slightly greater than 90 degrees. The second cam 2^6 is seated on the outer side 224' of the first cam and has a pressing portion 2260 beyond the outer edge of the first cam 224, with the remainder falling within the outer edge of the first cam 224. The pressing portion 2260 of the second cam 226 is substantially opposite to the end 2240 of the first cam 224, and forms an angle of slightly less than 180 degrees therebetween. The two pivoting rods 228 are respectively from the first cam 224 of each end. And the inner and outer sides of the second cam 226 are oppositely extended, wherein the pivoting lever 228 is located at the center of the first cam 224 such that the distance from the end 2240 of the first cam 224 to the pivoting lever 228 is greater than the first cam The other portion of the 224 is at a distance from the frame post 228, and the other pivoting lever 228 is located away from the pressing portion 2260 of the second cam 226 to press the pressing portion 2260 of the second cam 226 to the other pivoting lever. The distance of 228 is greater than the distance from the other portion of the second cam 226 to the other pivoting lever 228. The four frame posts 228 are collinear with each other to slide into the circular hole 242〇 along the cutout 2422 of the fixing portion 24, thereby pivotally connecting the actuating portion 22 to the fixing portion 24 (see Fig. 4). [0011] As shown in FIG. 2 and FIG. 5-6, the two fastening portions 26 are respectively pivotally connected to the two fixing portions 24. Each of the fastening portions 26 includes a fastening plate 260 and a top portion of the fastening plate 26. a rotating shaft 262, and a pressing plate 264 extending horizontally forward from the rotating shaft 262. * The widths of the lower portion, the middle portion, and the upper portion of the gusset plate 260 are decreased according to the lower portion, and the square holes 2600 are spaced apart from each other at the lower portion. The hook 144 of the fixing module 14 is buckled; a large opening (7) (10) is opened in the middle portion, so that when the shackle 260 is engaged with the fixing module 14, the two shackles are not smashed. The airflow blown from the front and rear sides of the radiator 12 is blocked. A part of the front side of the gusset is recessed to define a square groove 2604, and correspondingly 096135425 Form No. A0101 Page 8 / Total 24 Page 0993309502-0 1333828 ^_ August 27, 2017, the replacement page is on the gusset plate A protrusion 260 is protruded from the side of the 260. The groove 2604 is located above the port 2602 and communicates with the port 2602 to receive the spring 2424 of the fixing portion 24. The rotating shaft 262 is parallel to the circuit board 3〇, and the left and right ends thereof extend beyond the top of the fastening plate 260 to be engaged in the corresponding circular holes 2440 and 2460 of the fixing portion 24. The pressure receiving plate 264 is substantially in an "L" shape, and the area thereof is One of the larger portions is coupled to the rotating shaft 262, and the smaller portion thereof is away from the rotating shaft 262. The receiving plate 264 is configured to be in contact with the pressing portion 2260 of the second cam 226 of the actuating portion 22, so that when the moving portion 22 is rotated, the pressing portion 2260 can drive the pressure receiving plate 264 to drive the gusset plate 260. Pivot. [〇〇12] Please refer to FIG. 2 to FIG. 9 together, when assembling the heat dissipating device assembly, firstly, the two fastening legs 146 of the fixing module 14 are worn; the fixing module 14 is fixed to the side wall plum; 33⁄4. On the circuit board 30; then 'will be pre-fixed; the stator 丨 6 and the heat sink 12 of the fan 18 are placed on the electronic components, the i-base is in contact with the electronic components and is housed in the fixed module 14 In the space provided, after that, the buckles 2402 of the two fixing portions 24 are respectively passed through the through holes on both sides of the fixing piece 16, and the two fixing portions 24 are respectively fixed to the front and rear sides of the fixing piece 16 and the fan 18 is placed at this time. Between the two fixing portions 24; then, the pivoting rod 228 of the actuating portion 22 is slid downward along the notch 2422 of the fixing portion 24 until the hitting rod 228 is engaged in the circular hole 2420 of the fixing portion 24, and the actuating portion 22 and the second cams 224, 226 are sandwiched between the two side plates 241, 242 of the fixed portion 24; the handle 220 of the actuating portion 22 is adjusted to the vertical position, and is turned upward, and the first cam 224 is located directly above the opening of the fixing portion 24, and the end 2240 thereof is substantially oriented in a horizontal direction, and the pressing portion 226 of the second cam 226 0 is substantially oriented in the other horizontal direction opposite to the horizontal direction. Further, the rotating shaft 262 of the engaging portion 26 is along the fixing portion 24, the first and second supporting pieces 096135425. Form No. A0101, page 9 / total 24 pages, 33〇95 〇 2-0 1333828 « On August 27, 099, the notches 2442, 2462 of the positive replacement page 244 '246 are slid into the circular holes 2440, 2460 from the top, so that the pressure receiving plate 264 is located at the second cam 226 Covering the second cam 226 ′ above, the spring 2424 of the fixing portion 24 abuts against the inner wall of the recess 2604 of the engaging portion 26 against the gusset 26 〇 to separate the lower portion of the gusset 260 from the fixing module 14 . A distance, that is, the two gussets 260 as shown in FIG. 7 are obliquely placed on both sides of the heat sink 12; finally, the handle 220 of the pulsating action portion 22 is rotated downward about the pivoting lever 228, as shown in FIG. During the process, due to the eccentric action of the second cam 226, the pressing portion 2260 is gradually rotated upward from the horizontal position to the pressure receiving plate 264 which is pressed against the engaging portion 26, and then the pressure receiving plate 264 is driven to rotate upward about the rotating shaft 262. Further, the gusset plate 26 0 of the engaging portion 26 is driven by the pressure receiving plate 264 to rotate downward around the rotating glaze 262 to compress; The spring 2424 of the fixing portion 24 is inserted until the hook 144 of the fixing module 14 penetrates into the square hole 2600 of the gusset 260. At the same time, the end 2240 of the first cam 224 is rotated downward by the eccentricity, which is worn. The fixing piece 24 is pressed against the fixing piece 16 through the opening of the bottom plate 240 of the fixing portion 24, and further, the fixing portion 24 is attached to the fastening portion 26 to be lifted upward together with the fixing piece 16, and the fixing portion 24 is pinned by the fastening piece 242 (ie, The buckle cap of the buckle 2402 will abut against the fixing piece 16 to restrict the movement of the fixing portion 24, and the fixing portion 24 can only be raised upward by a small distance to make the hook 14 4 and the gusset 2 of the fixing module 14 60 square hole 2600 partial buckle" When the handle is rotated to the horizontal position of the end 2240 of the original first cam 224 as shown in FIG. 9, the pressing portion 2260 of the second cam 226 faces upward to make the fixed mold The hooks 144 of the group 14 are completely engaged in the square holes 2600 of the gusset plate 260, and the spring 2424 is compressed to maximize the elastic deformation to the maximum; the end 2240 of the first cam 224 faces downward to press the fixing piece 16 to dissipate heat. The device 12 is in close contact with the electronic components. Thereby, the fastening device 20 securely fixes the heat sink 10 to the electronic device 096135425. Form No. A0101 Page 10 / Total 24 Page 0993309502-0 1333828 On August 27, 2008, the shuttle is replacing the page [0013] [0014] [0016] [0018] [0019] [0020] [0022] [0022] 096135425 on the piece. When disassembling the heat sink assembly, it is only necessary to rotate the handle 220 from the horizontal position to the upward vertical position, and the components of the fastening device 20 will be reversed from the assembly until the position before the respective assembly is restored. The disassembly process is completed. The fixing portion 24 of the heat sink assembly of the present invention is mounted on the fixing piece 16 at the top of the heat sink 12, and does not need to occupy the space of the heat sink 12, so that a sufficient number of fins 120 can be formed on the base to obtain the heat sink 12 The heat dissipation efficiency is higher; and the assembly of the heat dissipating device only needs to pivot the actuating portion 22 around the fixing portion 24 to fasten the fastening portion 26 and the fixing module 14 without using other tools, and the process is relatively simple. . In summary, the present invention complies with the requirements of the invention patent, and proposes a patent application according to law. However, the above is only a 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 a perspective assembled view of a heat sink assembly of the present invention. Figure 2 is a partial exploded view of Figure 1. Figure 3 is a perspective enlarged view of the fastening device of Figure 1. Fig. 4 is a perspective enlarged view of the left fixing portion of Fig. 3. Figure 5 is a perspective enlarged view of the left side fastening portion of Figure 3. Figure 6 is a partial exploded view of Figure 3. Figure 7 is a side view of Figure 1 with the snap-fit device in an unfastened state. Form No. A0101 Page 11 of 24 0993309502-0 1333828 Shuttle Order Replacement Page on August 27, 099 [0023] Figure 8 is a view of another angle of Figure 1 with the snap-fit device in a half-fastened state. 9 is another angle view of FIG. 1, when the fastening device is in the buckled state [0025] [Main component symbol description] Heat sink: 10 [0026] Heat sink: 12 [0027] Fin: 120 [0028] Fixed module: 14 [0029] Side 璧: 140, 142 [0030] Clasp: 14 4 [0031] Buckle: 146, 2402 [0032] Fixing piece: 16 [0033] Fan: 18 [0034] Fastening device: 20 [0035] Actuating part: 22 [0036] Handle: 220 [0037] First cam: 224 [0038] End: 2240 [0039] Second cam: 226 096135425 Form number A0101 Page 12 of 24 Page 0993309502-0 1333828 |_叩日纽娜[0040] Compression: 2260 [0041] Frame Post: 228 [0042] Fixing: 24 [0043] Base Plate: 240 [0044] Side Panel: 241, 242 [0045 ] Round hole: 2420, 2440 ' 2460 [0046] Notch: 2422, 2442, 2462 [0047] Spring: 2424 [0048] First support piece: 244 [0049] Second support piece: 246 [0050] Fastening part: 26 [0051] gusset: 2 6 0 [0052] square hole: 2600 [0053] port: 2602 [0054] groove: 2604 [0055] convex: 2606 [0056] shaft: 262 [0057] Pressure plate: 264 096135425 Form number A0101 Page 13 of 24 0993309502-0