1297255 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種扣具及使用該扣具固定散熱器至發熱 電子元件之散熱裝置。 【先前技術】 * · . · % 如今，在電腦產業中，為將微處理晶片等發熱電子元 件產生之熱量有效散發，通常採用之方法係將散熱器緊密 #地貼設於發熱電子元件之溢熱表面，以協助發熱電子元件 散熱’保證發熱電子元件在適當溫度下運作。 為將散熱器緊密地貼設在發熱電子元件之溢熱表面， 一般先在電路板上設置一固定座，再藉由一扣具與該固定 座之扣接來對散熱器施加壓迫作用，令該散熱器受壓緊密 地貼設於該發熱電子元件之溢熱表面。然而，習知扣具大 多結構複雜，操作費力且不方便。 鲁【發明内容】 有鑒於此，實有必要提供一種結構簡單、操作簡便之 扣具及使用該扣具之散熱裝置。 一種扣具，包括：一彈性臂，該彈性臂一端向下彎折 延伸形成-扣臂；-旋轉臂，該旋轉臂具有—本體，該本 體樞接於彈性臂之另―端，該旋轉臂之本體上設有一開 該開口將本體分成—連接部及一扣合部，該開口邊緣 位於扣合部之部分至旋轉臂和彈性臂框接點 之距離由開口 6 1297255 内向開口外逐漸變大而形成一偏心輪廓線。 ' 厂種散熱裝置，包括：一固定座；一置於該固定座上 •，散熱器；-扣具，其跨置於該散熱器上並與該固定座相 γ接，該扣具包括—彈性f ’該彈性臂—端向下-折延伸 形成-與固定座扣接之扣臂；一旋轉臂，該旋轉臂具有一 f體’該本餘接於彈性臂之另—端，該旋轉臂之本體上 设有-開口，該開口將本體分成一連接部及一扣合部，該 ❿開口邊緣位於扣合部之部分至旋轉臂和彈性臂框接點之距 離由開口内向開口外逐漸變大而形成-偏心輪廓線，該旋 轉臂之開口與固定座滑動扣接，而該彈性臂抵壓散熱器於 固定座。 該扣具由兩個可動件組成，結構簡單；藉由一旋轉臂 之轉動即可實現扣具有效扣合，拆除時，也只需轉動旋轉 臂即可實現，安裝及拆卸操作方便。 下面參照附圖，結合具體實施例對本發明作進一步描 ❿述。 【實施方式】 • 圖1所示為本發明散熱裝置1〇〇之一實施例，該散熱裝 '置100用以對一電路板70上一發熱電子元件72散熱，該散熱 裝置100包括一固定座6〇、一散熱器5〇及一將散熱器5〇扣合 至固定座60之扣具4〇。 該固疋座60為一大致呈方形之框體，其二相對側壁中 間分別形成有一凸柱61，該固定座6〇藉由凸柱61和螺釘固 7 1297255 _ 定於電路板70上，固定座60中央設有一方形開口（未標號）， 、該發熱電子元件72收容於該方形開口内，每一凸柱61外側 壁垂直延伸設置一卡扣部62，該卡扣部62用以與扣具40相 • 互卡合，其包括一圓柱形抵接部624及與該抵接部624相連 - 之一方形卡塊622。 該散熱器50包括一方形基座51及自基座51向上垂直延 伸而出之複數散熱片54，該等散熱片54被其中間一容置槽 52分隔成對稱兩部分，自該容置槽52内基座51表面向上延 伸出一長條形凸起56，當扣具40跨置於容置槽52上時，該 凸起56用以卡制扣具40防止其在容置槽52内偏擺。 請參照圖2，該扣具40包括：一彈性臂10、一旋轉臂20 及一轉轴3 0。 該彈性臂10包括二平行懸臂120，該二懸臂120分別自 其中部向兩側斜向上延伸，大致呈V形，該二懸臂120中部 相互間隔，而在其兩端連接成一整體。自該二懸臂120—端 •向下一體延伸形成一扣臂14，該扣臂14上設有一方形扣孔 142，該扣孔142用以與固定座60上一卡扣部62相扣接。自 該二懸臂120另一端向上一體垂直延伸形成一倒U形抵接部 16，該抵接部16具有二平行臂部160，該二臂部160上各設 有一樞接孔162。 該旋轉臂20包括一厚度與固定座60卡扣部62的抵接部 624相當之薄片本體22及從該本體22上端向其兩側垂直延 伸形成之一把手26，用以操作把持該旋轉臂20。該本體22 8 1297255 . 設有一彎曲U形開口 25，該U形開口 25將本體22分成在開口 25—側相互連接的一連接部220及一扣合部222，該連接部 220上設有一與彈性臂10的樞接孔162相對應之一樞接孔 -24，該扣合部222遠離樞接孔24，該旋轉臂20與彈性臂10藉 - 由轉軸30穿過樞接孔162、24樞接於一體。該U形開口 25之 内壁由連接部220和扣合部222之邊緣共同組成，該開口 25 邊緣在扣合部222之部分至位於連接部220上之樞接孔24中 心之距離，由開口内向開口外逐漸變大而形成一偏心輪廊 胃線，而對應開口 25邊緣在連接部220之部分與該偏心輪廓線 保持大體平行，該開口 25之寬度相較於卡扣部62之抵接部 624之外徑略大，在扣合部222内壁靠近其延伸根部處形成 有一半圓弧狀凸起254，該凸起254處開口 25之寬度相較於 抵接部624之外徑略小，開口25之内壁自該凸起254至開口 25之底部區域形成一半圓孔256.，該半圓孔256配合凸起254 用以卡制抵接部624。 • 請同時參照圖3至圖5，在組裝扣具40時，可先將散熱 器50置於固定座60上，而後將彈性臂10之懸臂120跨置於散 熱器50之容置槽52之凸起56上，使二懸臂120夾置於容置槽 • 52内以限制彈性臂10偏擺，並將扣臂14藉由扣孔142鬆動地 • 扣接在固定座60之一卡扣部62上，接著操作旋轉臂20之把 手26將本體22藉由開口 25卡合於凸柱61與卡塊622之間之 抵接部624上，如圖3所示；然後逆時針轉動把手26，使得 抵接部624相對於旋轉臂20逐漸滑入至開口 25之底部，由於 開口 25相對於樞接孔24偏心，同時，該旋轉臂20相對於固 9 1297255 - 定座60向下運動，並將帶動彈性臂10之扣臂14向上扣緊卡 扣部62，繼續轉動把手26，從而對彈性臂10產生一向下之 壓力，迫使彈性臂10發生變形並壓制散熱器50，該散熱器 -50便在壓力之作用下緊密貼設在發熱電子元件72上，同時 、 當抵接部624碰到凸起254，藉由突然加力使凸起254周圍之 本體22產生彈性變形，迅速將抵接部624卡入半圓孔256， 同時本體22恢復形變，以實現自鎖。 拆卸該扣具40時，順時針轉動把手26碰到凸起254，藉 I由突然加力，以使抵接部624越過凸起254後即可輕鬆實現 拆除。 綜上所述，該扣具40由兩個可動件組成，結構簡單； 藉由一旋轉臂20之轉動即可實現扣具40之有效扣合，拆除 時，也只需轉動旋轉臂20即可實現，安裝及拆卸操作方便； 藉由在開口 25設置凸起254，並配合半圓孔256，用以將開 口 25穩固地扣接固定座60抵接部624上，可保證扣具40穩 ❿定、可靠扣合。 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為本發明散熱裝置一實施例之立體分解圖。 圖2為圖1中扣具之立體分解圖。 1297255 圖3為圖1中散熱裝置扣合前之侧視圖。 圖4為圖1中散熱裝置扣合後之侧視圖。 圖5為圖1中散熱裝置之立體組合圖。 【主要元件符號說明】1297255 IX. Description of the Invention: [Technical Field] The present invention relates to a buckle and a heat sink using the same to fix a heat sink to a heat-generating electronic component. [Prior Art] * · · · % Today, in the computer industry, in order to effectively dissipate the heat generated by heat-generating electronic components such as micro-processed wafers, the method is generally used to attach the heat sink to the heat-emitting electronic components. Hot surfaces to assist in the heat dissipation of the heat-generating electronic components' ensure that the heat-generating electronic components operate at the proper temperature. In order to closely attach the heat sink to the overflow surface of the heat-generating electronic component, a fixing seat is generally disposed on the circuit board, and then a buckle is attached to the fixing seat to apply pressure to the heat sink. The heat sink is closely attached to the heat absorbing surface of the heat-generating electronic component. However, the conventional buckle has a large structure and is laborious and inconvenient to operate. Lu [Summary of the Invention] In view of the above, it is necessary to provide a buckle having a simple structure and easy operation, and a heat sink using the same. A buckle includes: a resilient arm, the elastic arm is bent downwardly to form a buckle arm; and the rotating arm has a body that is pivotally connected to the other end of the elastic arm, the rotating arm The body is provided with an opening to divide the body into a connecting portion and a fastening portion. The distance from the edge of the opening portion to the contact point of the rotating arm and the elastic arm frame is gradually increased from the opening to the opening of the opening 6 1297255. And an eccentric outline is formed. 'The plant type heat sink device comprises: a fixing seat; a fixed seat; a radiator; a buckle, which is placed on the heat sink and connected to the fixing seat, the buckle includes - Elastic f 'the elastic arm-end-down-folded-formed-buckle arm fastened to the fixed seat; a swivel arm having a f-body' which is connected to the other end of the elastic arm, the rotation The body of the arm is provided with an opening, the opening is divided into a connecting portion and a fastening portion, and the edge of the opening of the opening is located at a portion of the fastening portion to the contact point of the rotating arm and the elastic arm frame, and the distance from the opening to the opening is gradually formed. The eccentric contour is formed by the enlargement, and the opening of the rotating arm is slidably fastened to the fixing seat, and the elastic arm presses the radiator to the fixing seat. The buckle is composed of two movable parts, and has a simple structure; the buckle can be effectively buckled by the rotation of a rotating arm, and when the removal is performed, only the rotating arm can be rotated, and the installation and disassembly operations are convenient. The present invention will be further described in conjunction with the specific embodiments with reference to the accompanying drawings. [Embodiment] FIG. 1 shows an embodiment of a heat dissipating device 1 of the present invention. The heat dissipating device 100 is configured to dissipate heat from a heat generating electronic component 72 on a circuit board 70. The heat dissipating device 100 includes a fixing device. The seat is 6 〇, a radiator 5 〇 and a buckle 4 将 which fastens the heat sink 5 至 to the fixed seat 60. The fixing base 60 is a substantially square frame body, and a protrusion 61 is formed in the middle of the opposite side walls, and the fixing base 6 is fixed on the circuit board 70 by the protrusion 61 and the screw fixing 7 1297255. The central portion of the base 60 is provided with a square opening (not labeled). The heat-generating electronic component 72 is received in the square opening. A protruding portion 62 is vertically extended on the outer side wall of each of the protrusions 61. The latching portion 62 is used for the buckle. With 40 phases and mutual engagement, it includes a cylindrical abutting portion 624 and a connecting portion 624 - a square block 622. The heat sink 50 includes a square base 51 and a plurality of fins 54 extending vertically upward from the base 51. The heat sinks 54 are separated into two symmetrical parts by a receiving groove 52 therein. An elongated protrusion 56 is formed on the surface of the inner base 51 of the 52. When the buckle 40 is placed on the receiving groove 52, the protrusion 56 is used to clamp the buckle 40 to prevent it from being in the receiving groove 52. Hemiplegia. Referring to FIG. 2 , the buckle 40 includes a resilient arm 10 , a rotating arm 20 , and a rotating shaft 30 . The elastic arm 10 includes two parallel cantilevers 120. The two cantilevers 120 extend obliquely upward from the central portion thereof to the two sides, and are substantially V-shaped. The two cantilevers 120 are spaced apart from each other and are integrally connected at both ends thereof. A latching arm 14 is formed on the latching arm 142. The latching arm 142 is configured to be fastened to a latching portion 62 of the mounting base 60. An inverted U-shaped abutting portion 16 is formed from the other end of the second cantilever 120. The abutting portion 16 has two parallel arm portions 160. Each of the two arm portions 160 is provided with a pivot hole 162. The rotating arm 20 includes a sheet body 22 having a thickness corresponding to the abutting portion 624 of the locking portion 62 of the fixing base 60 and a handle 26 extending perpendicularly from the upper end of the body 22 to the two sides thereof for operating and holding the rotating arm 20 . The main body 22 is provided with a curved U-shaped opening 25, and the U-shaped opening 25 divides the main body 22 into a connecting portion 220 and a fastening portion 222 which are connected to each other at the side of the opening 25, and the connecting portion 220 is provided with a The pivoting hole 162 of the elastic arm 10 is corresponding to one of the pivoting holes 245, and the engaging portion 222 is away from the pivoting hole 24, and the rotating arm 20 and the elastic arm 10 are passed through the pivoting hole 162, 24 by the rotating shaft 30. Pivoted in one. The inner wall of the U-shaped opening 25 is composed of the connecting portion 220 and the edge of the engaging portion 222. The edge of the opening 25 is at the distance from the portion of the engaging portion 222 to the center of the pivoting hole 24 on the connecting portion 220. The outside of the opening gradually becomes larger to form an eccentric wheel stomach line, and the edge of the corresponding opening 25 is substantially parallel with the eccentric contour at the portion of the connecting portion 220, and the width of the opening 25 is compared with the abutting portion of the buckle portion 62. The outer diameter of the 624 is slightly larger, and a half arc-shaped protrusion 254 is formed at an inner wall of the fastening portion 222 near the extended root portion thereof, and the width of the opening 25 at the protrusion 254 is slightly smaller than the outer diameter of the abutting portion 624. The inner wall of the opening 25 forms a semi-circular hole 256. from the protrusion 254 to the bottom portion of the opening 25. The semi-circular hole 256 cooperates with the protrusion 254 for clamping the abutting portion 624. • Referring to FIG. 3 to FIG. 5 simultaneously, when assembling the clip 40, the heat sink 50 can be placed on the fixing base 60, and then the cantilever 120 of the elastic arm 10 is placed across the receiving groove 52 of the heat sink 50. The protrusion 56 is disposed on the accommodating groove 52 to limit the yaw of the elastic arm 10, and the buckle arm 14 is loosened by the fastening hole 142. 62, then the handle 26 of the rotating arm 20 is used to engage the body 22 through the opening 25 on the abutting portion 624 between the stud 61 and the block 622, as shown in FIG. 3; then, the handle 26 is rotated counterclockwise. The abutting portion 624 is gradually slid into the bottom of the opening 25 with respect to the rotating arm 20, since the opening 25 is eccentric with respect to the pivot hole 24, and at the same time, the rotating arm 20 moves downward relative to the solid 9 1297255 - the seat 60, and The buckle arm 14 that drives the elastic arm 10 is fastened to the buckle portion 62 to continue to rotate the handle 26, thereby generating a downward pressure on the elastic arm 10, forcing the elastic arm 10 to deform and pressing the heat sink 50. It is closely attached to the heat-generating electronic component 72 under the action of pressure, and at the same time, when the abutting portion 624 hits the convex portion 254, by making a sudden energizing projections 254 around the body 22 is elastically deformed, the contact portion 624 quickly snaps into semi-circular apertures 256, restore the deformation body 22 while, in order to achieve self-locking. When the buckle 40 is disassembled, the handle 26 is turned clockwise to hit the projection 254, and the force is suddenly applied so that the abutment portion 624 can be easily removed after passing over the projection 254. In summary, the buckle 40 is composed of two movable members, and has a simple structure; the effective fastening of the buckle 40 can be realized by the rotation of the rotating arm 20, and when the removal is performed, only the rotating arm 20 can be rotated. It is convenient to realize, install and disassemble; by providing the protrusion 254 in the opening 25 and engaging the semi-circular hole 256, the opening 25 is firmly fastened to the abutment portion 624 of the fixing base 60, thereby ensuring that the buckle 40 is stable and stable. Reliable fastening. In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an embodiment of a heat sink according to the present invention. 2 is an exploded perspective view of the buckle of FIG. 1. 1297255 FIG. 3 is a side view of the heat dissipating device of FIG. 1 before being fastened. 4 is a side view of the heat dissipating device of FIG. 1 after being fastened. FIG. 5 is a perspective assembled view of the heat sink of FIG. 1. FIG. [Main component symbol description]
彈性臂 10 散熱裝置 100 懸臂 120 扣臂 14 扣孔 142 抵接部 16, 624 臂部 160 柩接孔 162, 24 旋轉臂 20 本體 22 連接部 220 扣合部 222 開口 25 凸起 254, 56 半圓孔 256 把手 26 轉轴 30 扣具 40 散熱器 50 基座 51 容置槽 52 散熱片 54 固定座 60 凸柱 61 卡扣部 62 卡塊 622 電路板 70 電子元件 72 11Elastic arm 10 Heat sink 100 Cantilever 120 Buckle arm 14 Buckle hole 142 Abutment 16, 624 Arm 160 柩 162, 24 Rotating arm 20 Body 22 Connecting part 220 Snap 222 Opening 25 Raised 254, 56 Semi-circular hole 256 handle 26 shaft 30 fastener 40 heat sink 50 base 51 receiving groove 52 heat sink 54 fixing seat 60 stud 61 snap portion 62 block 622 circuit board 70 electronic components 72 11