1299823 九、發明說明： _ 【發明所屬之技術領域】 本發明係關於-種扣合裂置，尤係關於一種將冷卻電 子兀件之散熱器固定於電路板上之散熱器扣合裝置。 【先前技術】 一般電子兀件如中央處理器運行時產生大量熱，而使 其本身及系統溫度升高，過高溫度會使其運行性能下降。 為此，業界通常在電子元件上安裝散熱器，以排出其所產 生之大夏熱。為確保散熱器與電子元件能夠緊密接觸而傳 熱充分，通常藉由扣合裝置辅助扣合散熱器。 圖7為一種散熱器扣具，其具有一本體6〇、一第一扣件 70、一第一扣件80及一操作件9〇，該本體6〇一端具有一承 接面61，其上開設二平行槽口 611，另一端彎折形成第一扣 件70，該第二扣件80具有一對平行片體81，該對片體“上 籲部分別開設一對應之樞接孔811，該操作件9〇一端設置有二 平行片體形成之凸輪部91，該凸輪部91之偏心位置上開設 一與一片體81上之樞接孔811對應之樞孔911。該第二扣件 80之二片體81穿過本體60承接面61之二槽口 611，樞軸”穿 過第二扣件80上之樞接孔81及操作件9〇上之樞孔911，從而 將第二扣件80及固定操作件9〇樞接在一起。 上述扣具在使用時，第一、二扣件7〇及8〇分別與安裝 於電路板上之扣接結構扣接，通過轉動操作件9〇使凸輪部 91在承接面61上滑動，從而向上提升第二扣件8〇而達到本 1299823 體60抵壓散熱器進而使其固定之安裝目的。惟，該扣具在 ‘使用時，操作件90容易因為系統振動而使操作件卯回轉， -使扣具解除對散熱器之抵壓固定作用，而使散熱器脫離發 熱電子元件。該種扣具扣合不穩定而存在較大之潛在影 響，故需改進。 【發明内容】 有鑒於此，有必要提供一種扣持穩固之散熱器扣合裝 •置。 一種散熱器扣合裝置，用於將散熱器固定在電路板 上，包括一本體、一設置於本體一端之一第一扣件、設置 於本體另一端之一第二扣件以及與該第一扣件連接之一操 作件，該操作件包括一與第一扣件樞接之凸輪部，且操作 件之轉動可引起凸輪部抵壓本體一端之承接面，而驅動第 一扣件相對本體向上移動，該凸輪部上形成有可與第一扣 _ 件相抵靠之限位元結構。 上述散熱器扣合裝置操作件上之凸點也能有效防止操 作件由於系統振動而自發回彈使散熱器扣合裝置意外脫 落’從而提高該散熱器扣合裝置之穩定性。 【實施方式】 睛參閱圖3,本發明一實施例中散熱器扣合裝置iq， 主要係用來使散熱器20固貼在電路板4〇之發熱電子元件 42表面上。該散熱器2〇以鋁或銅等導熱性能良好之金屬材 料製成包括一與電子元件42頂面接觸以吸收電子元件42 1299823 運行時所產生之熱量之底板22及平行排列於底板22上之 • 複數散熱鰭片24。該等散熱鰭片24中間開設一長槽26， ‘ 用以容置散熱器扣合裝置。該電子元件42設置在一電路板 40上，並且其週邊設置有一固定座30。該固定座30係一 矩形框體，其相對兩側各設有至少一凸塊32，該等凸塊32 分別與散熱器扣合裝置10扣接，而將散熱器20固定在電 路板40上。該散熱器扣合裝置10包括一本體100、一第一 扣件200、一第二扣件300及一操作件400。 如圖1及圖2所示，該本體100大致呈V形彎曲，其 中部位置形成一抵壓部102，且其中間開設一通槽104。該 本體100 —端設有一呈水平狀之承接面140,該承接面140 上開設有一對形狀大小一致、相互平行之長條狀槽孔142， 該等槽孔142平行於本體100之長度方向，用於供第一扣 件200穿設。該本體100另一端形成與第二扣件300卡扣 結合之卡扣結構120,該卡扣結構120為在本體100兩相隔 籲片體端部分別形成一倒刺形狀之彈性扣鈎122。 該第一扣件200具有兩相互平行之連接片體220,該等 連接片體220頂端分別開設有對應之樞接孔222。該等連接 片體220與槽孔142相對應，自下穿過槽孔142使二樞接 孔222位於承接面140上方。該連接片體220底端連接一 扣腳260。該扣腳260上設有與固定座30 —侧之凸塊32 扣接之至少一第一扣孔262，該扣腳260之底部邊緣向外彎 折形成傾斜狀之倒角。 該第二扣件300係一長條狀金屬片體，其靠近頂端位 1299823 置水平開設有一長條狀槽孔320，該槽孔320用於與本體 • 100 —端之卡扣結構120配合，從而將第二扣件300活動連 一 接到本體100上。該第二扣件300靠近底端位置上設有一 第二扣孔340,該第二扣孔340與第一扣件200之第一扣孔 262對應，與固定座30另一侧之凸塊32扣接。該第二扣件 300之底部邊緣向外彎折形成傾斜狀之倒角。 該操作件400係由一金屬片一體衝壓而成，其包括一 $扳動部420及連接於扳動部420 —端之二凸輪部460。該二 凸輪部460由二相互平行、形狀大小一致之片體形成，且 其偏心位置上開設有樞孔462。每一凸輪部460之邊緣設有 一釋放段464及一固定段466。該固定段466上各點到柩孔 462之距離大於釋放段464上各點到樞孔462之距離。在該 二凸輪部460上設置有防止操作件400意外轉動之限位元 結構，在本實施例中該限位元結構為在凸輪部460之固定 段466和樞孔462間分別由内向外相對衝壓出兩相隔之限 _ 位凸點468。 如圖2所示，該散熱器扣合裝置10處於組裝狀態時， 該第一扣件200之兩連接片體220從下向上穿過承接面140 上之槽孔142,該兩連接片體220上之樞接孔222位於承接 面140上方。該操作件400平行本體100地放置於其承接 面140上面，且夾在第一扣件200之兩連接片體220之間， 一樞軸500穿過操作件400上之樞孔462與二連接片體220 上之樞接孔222,從而將操作件300及第二扣件200樞接在 一起。該第二扣件300與本體100可分離式設置，通過其 1299823 上之槽孔320套入本體100 —端之扣鈎122而相卡扣連接。 當轉動操作件400時，凸輪部460之釋放段464及固定段 466可選擇性地與本體100上之承接面140接觸。當凸輪部 460邊緣之釋放段464與承接面140接觸時，該散熱器扣合 裝置10處於未扣合狀態，其操作件400之上兩凸點468處 在第一扣件200之二連接片體220之一側，當凸輪部460 從釋放段464與接觸面140接觸轉動到固定段466與接觸 面140接觸之位置時，該散熱器扣合裝置10處於扣合狀 態，該兩凸點468中一個從第一扣件200二連接片體220 一侧滑到相對另一側並及緊靠該連接片體220之一侧邊 緣，此時第一扣件200之連接片體220位於凸輪部460兩 凸點468之間，從而阻止操作件400由於系統振動而回轉。 可以理解，本體100 —端承接面140之兩相隔槽孔142 也可以垂直本體100之長度設置，此時操作件400垂直本 體100設置於承接面140上，為側向轉動結構。 請一併參閱圖3至圖6,安裝散熱器20時，可以先將 組裝好之散熱器扣合裝置10從上往下放置於散熱器20之 長槽26上，也可以先將只組裝好第一扣件200之散熱器扣 合裝置10，從散熱器20 —側穿過長槽26之而跨設其中， 再從散熱器20之另一侧扣上第二扣件300，接著都係扳動 操作件400，使凸輪部460之釋放段464對應位於與本體 120之承接面140接觸之位置，再使第一、二扣件200、300 之第一扣孔262及第二扣孔340分別套接固定座30兩側對 應之凸塊32上。然後，扳動操作件400，使散熱器扣合裝 1299823 置10處於扣合狀態，其凸輪部460之固定段466轉動到與 ‘ 本體100上之承接面140對應接觸之位置。由於凸輪部460 " 為偏心結構，其固定段466到轉動樞軸500之距離較釋放 段464到轉動樞軸500之距離大，故在操作件400之轉動 過程中，將帶動與凸輪部460枢接在一起之第一扣件200 向上移動，從而使該第一扣件200之第一扣孔262牢固地 扣接固定座30 —側之凸塊32，同時向下抵壓本體100之承 接面140，使本體100上之抵壓部102向下抵壓散熱器20 長槽26之底部，從而使散熱器20緊密固貼在電子元件42 上，此時操作件400上之兩凸點468正好抵靠第一扣件200 之二連接片體220兩側之側緣，防止操作件400由於系統 振動而自發回彈使散熱器扣合裝置10意外脫落。 拆卸時，需先反向扳動操作件400,使散熱器扣合裝置 10處於未扣合狀態，其凸輪部460轉動到其釋放段464與 本體100之承接面140對應接觸之位置，同時帶動第一扣 ⑩件200向下移動，使第一扣件200之第一扣孔262與固定 座30之凸塊32分離，以便於拆下散熱器20。 本發明散熱器扣合裝置10之操作件400上之凸點468 能有效防止操作件400由於系統振動而自發回彈使散熱器 扣合裝置10意外脫落，從而提高該散熱器扣合裝置10之 穩定性。該散熱器扣合裝置10第二扣件300與本體100採 用分離式設置，故使該散熱器扣合裝置10在組裝安裝有風 扇（圖未示）之散熱器20時，可在不拆卸裝於散熱器20 上之風扇之情況下，將散熱器扣合裝置10之本體100從散 11 1299823 熱器20之一側伸入長槽26，再使第 進而實現散熱器20之固定。 综上所述’本發明符合發明專利要件，爰依法提出專 胃&卩上所述者僅為本發明之較佳實施例，舉凡 2本案技藝之人士，在爰依本發明精神所作之等效修飾 5、’-、、化，白應涵蓋於以下之申請專利範圍内。 【圖式簡單說明】BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snap-fitting, and more particularly to a heat sink fastening device for fixing a heat sink for cooling an electronic component to a circuit board. [Prior Art] Generally, an electronic component such as a central processing unit generates a large amount of heat when it is operated, and the temperature of itself and the system rises, and an excessively high temperature deteriorates its running performance. For this reason, the industry usually installs a heat sink on an electronic component to discharge the heat generated by it. In order to ensure that the heat sink and the electronic components can be in close contact and the heat transfer is sufficient, the heat sink is usually assisted by the fastening device. FIG. 7 is a heat sink clip having a body 6〇, a first fastener 70, a first fastener 80, and an operating member 9〇. The body 6 has a receiving surface 61 at one end thereof. The second parallel slot 611 is formed, and the other end is bent to form a first fastening member 70. The second fastening member 80 has a pair of parallel plates 81. The pair of upper portions respectively open a corresponding pivot hole 811. A cam portion 91 formed by two parallel plates is disposed at one end of the operating member 9 , and a pivot hole 911 corresponding to the pivot hole 811 of the one-piece body 81 is defined at an eccentric position of the cam portion 91 . The two-piece 81 of the 80 is passed through the two slots 611 of the receiving surface 61 of the body 60, and the pivot shaft traverses the pivot hole 81 of the second fastening member 80 and the pivot hole 911 of the operating member 9 so as to be the second The fastener 80 and the fixed operating member 9 are pivotally connected together. When the buckle is in use, the first and second fastening members 7 and 8 are respectively fastened to the fastening structure mounted on the circuit board, and the cam portion 91 is slid on the receiving surface 61 by rotating the operating member 9 The second fastening member 8 is lifted upward to achieve the purpose of mounting the 1299823 body 60 against the heat sink to fix it. However, when the buckle is used, the operating member 90 is liable to cause the operating member to slewing due to system vibration, and the buckle is released from the pressing force of the heat sink, and the heat sink is detached from the heat generating electronic component. This kind of buckle is unstable and has a large potential impact, so it needs to be improved. SUMMARY OF THE INVENTION In view of the above, it is necessary to provide a heat sink fastening device that is securely fastened. A heat sink fastening device for fixing a heat sink on a circuit board includes a body, a first fastener disposed at one end of the body, a second fastener disposed at the other end of the body, and the first fastener The fastener is connected to one of the operating members, the operating member includes a cam portion pivotally connected to the first fastening member, and the rotation of the operating member causes the cam portion to press against the receiving surface of one end of the body, and drives the first fastening member relative to the body upward Moving, the cam portion is formed with a stop structure that can abut against the first buckle. The bumps on the operating member of the heat sink fastening device can also effectively prevent the operating member from spontaneously rebounding due to system vibration to cause the heat sink fastening device to accidentally fall off, thereby improving the stability of the heat sink fastening device. [Embodiment] Referring to Fig. 3, a heat sink fastening device iq is mainly used to fix the heat sink 20 on the surface of the heat-generating electronic component 42 of the circuit board 4 in an embodiment of the present invention. The heat sink 2 is made of a metal material having good thermal conductivity such as aluminum or copper, and includes a bottom plate 22 which is in contact with the top surface of the electronic component 42 to absorb heat generated during operation of the electronic component 42 1299823, and is arranged in parallel on the bottom plate 22. • Multiple heat sink fins 24. A long slot 26 is defined in the middle of the heat dissipation fins 24 to accommodate the heat sink fastening device. The electronic component 42 is disposed on a circuit board 40 and has a mounting base 30 disposed around the periphery thereof. The fixing base 30 is a rectangular frame body, and at least one protruding block 32 is disposed on opposite sides of the fixing base 30. The protruding blocks 32 are respectively fastened to the heat sink fastening device 10, and the heat sink 20 is fixed on the circuit board 40. . The heat sink fastening device 10 includes a body 100, a first fastener 200, a second fastener 300, and an operating member 400. As shown in FIG. 1 and FIG. 2, the body 100 is substantially V-shaped, and a central portion thereof forms a pressing portion 102, and a through groove 104 is defined therebetween. The end of the body 100 is provided with a horizontal receiving surface 140. The receiving surface 140 defines a pair of elongated slots 142 of uniform size and parallel to each other. The slots 142 are parallel to the length of the body 100. It is used for the first fastener 200 to be worn. The other end of the body 100 is formed with a buckle structure 120 that is snap-fitted with the second fastener 300. The buckle structure 120 is a resilient buckle 122 that forms a barb shape at the end of the body of the body 100. The first fastening member 200 has two parallel connecting pieces 220. The top ends of the connecting pieces 220 are respectively provided with corresponding pivot holes 222. The connecting body 220 corresponds to the slot 142, and the two pivoting holes 222 are located above the receiving surface 140 from below. A connecting leg 260 is connected to the bottom end of the connecting piece 220. The fastening leg 260 is provided with at least one first fastening hole 262 fastened to the protrusion 32 on the side of the fixing base 30. The bottom edge of the fastening leg 260 is bent outward to form an inclined chamfer. The second fastening member 300 is a long strip of metal sheet, and a long slot 320 is horizontally disposed near the top end 1299823. The slot 320 is configured to cooperate with the body 100-end buckle structure 120. Thereby, the second fastener 300 is movably connected to the body 100. A second fastening hole 340 is defined in the second fastening member 300. The second fastening hole 340 corresponds to the first fastening hole 262 of the first fastening component 200 and the convex block 32 on the other side of the fixing component 30. Fastened. The bottom edge of the second fastener 300 is bent outward to form a chamfered angle. The operating member 400 is integrally stamped from a metal piece, and includes a triggering portion 420 and two cam portions 460 connected to the end of the pulling portion 420. The two cam portions 460 are formed by two sheets which are parallel to each other and have the same size and shape, and are provided with pivot holes 462 at eccentric positions. A release section 464 and a fixed section 466 are provided at the edge of each cam portion 460. The distance from each point on the fixed section 466 to the pupil 462 is greater than the distance from each point on the release section 464 to the pivot hole 462. The two cam portions 460 are provided with a stopper structure for preventing the accidental rotation of the operating member 400. In the embodiment, the limiting member is configured to be respectively opposed from the inner side to the outer side between the fixed portion 466 of the cam portion 460 and the pivot hole 462. Punch out the two-phase gap _ position bump 468. As shown in FIG. 2, when the heat sink fastening device 10 is in an assembled state, the two connecting pieces 220 of the first fastening component 200 pass through the slot 142 of the receiving surface 140 from bottom to top. The two connecting sheets 220 are connected. The upper pivot hole 222 is located above the receiving surface 140. The operating member 400 is placed on the receiving surface 140 parallel to the body 100 and sandwiched between the two connecting pieces 220 of the first fastening member 200. A pivot 500 is connected to the second through the pivot hole 462 of the operating member 400. The pivot hole 222 is formed on the body 220 to pivotally connect the operating member 300 and the second fastener 200 together. The second fastener 300 is detachably disposed from the body 100, and is snap-fitted by the slot 320 of the 1299823 sleeved into the hook 122 of the body 100. When the operating member 400 is rotated, the release section 464 and the fixed section 466 of the cam portion 460 are selectively contactable with the receiving surface 140 on the body 100. When the release portion 464 of the edge of the cam portion 460 is in contact with the receiving surface 140, the heat sink fastening device 10 is in an unfastened state, and the two protrusions 468 on the operating member 400 are on the connecting piece of the first fastening member 200. One side of the body 220, when the cam portion 460 is in contact with the contact surface 140 from the release portion 464 to a position where the fixed portion 466 is in contact with the contact surface 140, the heat sink fastening device 10 is in a snap-fit state, and the two bumps 468 One of the first fastening members 200 is slid from the side of the first fastening member 200 to the opposite side and abuts against one of the side edges of the connecting body 220. At this time, the connecting piece 220 of the first fastening member 200 is located at the cam portion. 460 is between the two bumps 468, thereby preventing the operating member 400 from rotating due to system vibration. It can be understood that the two spaced-apart slots 142 of the body receiving end 140 can also be disposed perpendicular to the length of the body 100. At this time, the operating member 400 is disposed on the receiving surface 140 perpendicular to the body 100 as a lateral rotating structure. Please refer to FIG. 3 to FIG. 6 together. When the heat sink 20 is installed, the assembled heat sink fastening device 10 can be placed on the long slot 26 of the heat sink 20 from top to bottom, or it can be assembled first. The heat sink fastening device 10 of the first fastener 200 is straddled from the side of the heat sink 20 through the long groove 26, and then the second fastener 300 is fastened from the other side of the heat sink 20, and then both are attached. The operating member 400 is slid so that the release portion 464 of the cam portion 460 is located in contact with the receiving surface 140 of the body 120, and the first and second fastening holes 262 and 340 of the first and second fastening members 200 and 300 are respectively The corresponding bumps 32 on both sides of the fixing base 30 are respectively sleeved. Then, the operating member 400 is pulled to bring the heat sink fastening assembly 1299823 into the engaged state, and the fixing portion 466 of the cam portion 460 is rotated to a position corresponding to the receiving surface 140 of the body 100. Since the cam portion 460 " is an eccentric structure, the distance between the fixing portion 466 and the pivoting pivot 500 is greater than the distance from the releasing portion 464 to the pivoting pivot 500, so that during the rotation of the operating member 400, the cam portion 460 is driven. The first fasteners 200 pivotally connected together are moved upwards, so that the first fastening holes 262 of the first fastening component 200 are firmly fastened to the protrusions 32 on the side of the fixing base 30, and simultaneously press down against the body 100. The surface 140 is such that the pressing portion 102 on the body 100 presses down the bottom of the long groove 26 of the heat sink 20, so that the heat sink 20 is closely attached to the electronic component 42. At this time, the two bumps 468 on the operating member 400 Just against the side edges of the two sides of the first fastening member 200 connecting the sheet body 220, the operation member 400 is prevented from spontaneously rebounding due to system vibration, and the heat sink fastening device 10 is accidentally dropped. When disassembling, the operating member 400 is reversely pulled to make the heat sink fastening device 10 in an unfastened state, and the cam portion 460 is rotated to a position where the release portion 464 is in contact with the receiving surface 140 of the body 100, and is simultaneously driven. The first buckle 10 member 200 is moved downward to separate the first fastening hole 262 of the first fastening member 200 from the projection 32 of the fixing base 30 to facilitate the removal of the heat sink 20. The bump 468 on the operating member 400 of the heat sink fastening device 10 of the present invention can effectively prevent the operating member 400 from spontaneously rebounding due to system vibration, thereby causing the heat sink fastening device 10 to accidentally fall off, thereby improving the heat sink fastening device 10 stability. The second fastening component 300 of the heat sink fastening device 10 and the main body 100 are disposed separately, so that the heat sink fastening device 10 can be assembled without being assembled with a heat sink 20 (not shown). In the case of the fan on the heat sink 20, the body 100 of the heat sink fastening device 10 is extended from the side of the heat sink 20 to the long groove 26, and the heat sink 20 is further fixed. In summary, the present invention complies with the requirements of the invention patent, and the above-mentioned ones are only preferred embodiments of the present invention, and those skilled in the art of the present invention are in accordance with the spirit of the present invention. The effect modification 5, '-, 、, white, should be included in the scope of the following patent application. [Simple description of the map]
係本發明一實施例中散熱器扣合裝置之立體分解 固2係圖1中散熱器扣合裝置之立體組裝圖。 圖3係圖1中散熱器扣合裝置與相關元件之立體分解 圖4係圖χ中散熱器扣合裝置與相關元件之立體組裝In the embodiment of the present invention, a three-dimensional exploded view of the heat sink fastening device of the heat sink fastening device is shown in FIG. Figure 3 is a perspective exploded view of the heat sink fastening device and related components of Figure 1. Figure 4 is a three-dimensional assembly of the heat sink fastening device and related components in Figure
—扣件300挂設其上， 固5係圖4中散熱器扣合裝置處於未扣合狀態之侧視 固6係圖4中散熱裔扣合裝置處於扣合狀態之側視圖。 圖7係一習知散熱器扣合裝置之立體分解圖。 【主要元件符號說明】 <本發明> 100 散熱器扣合裝置10 本體 抵壓部 102 通槽 12 104 1299823 卡扣結構 120 承接面 140 第一扣件 200 柩接孔 222 第一扣孔 262 第二扣孔 340 扳動部 420 釋放段 464 凸點 468 凸塊 32 電子元件 42 <習知> 本體 60 槽口 611 第二扣件 80 柩接孔 811 凸輪部 91 樞軸 93 扣鈎 122 槽孔 142 > 320 連接片體 220 扣腳 260 第二扣件 300 操作件 400 凸輪部 460 固定段 466 柩軸 500 電路板 40 承接面 61 第一扣件 70 平行片體 81 操作件 90 柩孑L 911 13- The fastener 300 is hung on it, and the fastener 5 is in the unbuckled state. The fuse holder is in the unfastened state. Figure 7 is an exploded perspective view of a conventional heat sink fastening device. [Main component symbol description] <The present invention> 100 Heat sink fastening device 10 Main body pressing portion 102 Through groove 12 104 1299823 Buckle structure 120 Bearing surface 140 First fastener 200 柩 hole 222 First button hole 262 The second buttonhole 340, the pulling portion 420, the releasing portion 464, the bump 468, the bump 32, the electronic component 42 < the conventional body> the body 60, the notch 611, the second fastening member 80, the splicing hole 811, the cam portion 91, the pivot shaft 93, the hook portion 122 Slot 142 > 320 Connecting sheet 220 Buckle 260 Second fastener 300 Operating member 400 Cam portion 460 Fixing section 466 Truss 500 Circuit board 40 Receiving surface 61 First fastener 70 Parallel sheet 81 Operating member 90 柩孑L 911 13