1297427 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種擴充卡之固定結構，尤指一種可用於固定不 同高度之擴充卡，並且無需使用裝卸工具（如··螺絲起子）即可 輕易組裝及拆卸於一電子裝置（如：伺服器）之主機板上之擴充 卡固定結構，透過該固定結構，可將不同高度之擴充卡（如： 鲁匯流排之擴充卡）穩固組設於該電子裝置的主機板上。 【先前技術】 隨著當前資訊產品之不斷推陳出新，尤其是個人電腦（pc) ' 之被廣泛應用’人們對於個人電腦之使用要求係越來越高，為提 升個人電腦周邊裝置在資料傳輸時之效能，一種由英特爾（) 所發展之周邊元件連接介面（PeHpheral c〇__ Interconnect，以下簡稱PCI)匯流排，即成為市場中之主流產品， •亦代表著其他規格傳輸速率較慢之匯流排（如：ISA)，將漸漸淡 出，而由該PCI匯流排所取代。 目前該PCI匯流排之擴充卡在—電腦主機殼體内之主機板 上’可說是-主流之外接擴充卡，現今一般m規格之主機板上， 夕/、有五條以上之PCI擴充槽，而該主機板上之擴充槽若越多， 即代表該電腦之擴充能力越強，因此，各科技大廠即不斷地對擴 充卡與擴紐滅研發姐良，财滿足社會大眾之需求，但相 反地，對於該擴充卡之固定方式上，卻相野變化不多。 5 1297427 此外’以現行工業用之1U (ιυ=44· 45mm)伺服器來說，由於 受到該飼服器之設計鬲度影響，因此，該1U祠服器之内部，除了 具有相關電子元件外，最主要尚包括有一印刷電路板（PCB)，倘 若為使該伺服器增強其處理能力，一般會在該主機板上，額外地 組裝一其它之擴充卡（如：前所述之PCI匯流排之擴充卡），藉以 達到增強該祠服器處理能力之目的。1297427 IX. Description of the Invention: [Technical Field] The present invention relates to a fixed structure of an expansion card, and more particularly to an expansion card that can be used for fixing different heights, and can be easily used without using a loading and unloading tool (such as a screwdriver) An expansion card fixing structure assembled and disassembled on a motherboard of an electronic device (such as a server), through which the expansion card of different heights (such as an expansion card of a Luhui flow row) can be stably set The motherboard of the electronic device. [Prior Art] With the continuous innovation of current information products, especially the widespread use of personal computers (PCs), people are increasingly demanding the use of personal computers, in order to improve the transmission of personal computer peripheral devices. Performance, a peripheral device interface (PeHpheral c〇__ Interconnect, hereinafter referred to as PCI) developed by Intel (), has become the mainstream product in the market, and also represents other buss with slower transmission rates. (eg ISA), will gradually fade out, and replaced by the PCI bus. At present, the expansion card of the PCI bus is on the motherboard on the mainframe of the computer. It can be said that it is a mainstream external expansion card. On the motherboard of the current m specification, there are more than five PCI expansion slots. The more expansion slots on the motherboard, the stronger the expansion capability of the computer. Therefore, the major technology companies continue to develop and expand the expansion cards and expansions to meet the needs of the public. On the contrary, there is not much change in the way of fixing the expansion card. 5 1297427 In addition, in the current industrial 1U (ιυ=44·45mm) server, due to the design of the feeding device, the interior of the 1U server has the relevant electronic components. The most important one is to include a printed circuit board (PCB). In order to enhance the processing capability of the server, an additional expansion card (such as the PCI bus as described above) is additionally assembled on the motherboard. The expansion card), in order to enhance the processing power of the server.
再者，請參閱第一圖所示，按一般電腦上所使用的pCI匯流 排擴充卡1G，是用其本身—端上之標相定托架u (Bracket)， 直接肷卡在域殼體12後板上之複數輸出/輸人埠固定框架13 上，其中該固定托架11上係開設有一孔洞1U，該孔洞⑴恰與 該等輸出/輸人埠固定轉13上之―顧131械應，藉此，;^ 分別透過-螺絲14直接鎖固在該等孔洞⑴、131中，以令該阳 匯流排擴充卡H)得以姻定於該等輸出/輸人和定框架13上 而不會鬆動’同時，可令該pci匯流排擴充卡10之-側以水平方 式***印刷電路板上之一擴充槽15内。 目前伺服器或工作站上所使用之pci M流排擴充卡1〇，除了 利用螺絲14直接_在該輸定框架13之外，尚必 =二匯流排擴充卡10之另一端，設計出另一個支撐架或固 ^ 未示），以充分咖擴充卡10，避免因振動或運送過 件。同時，隨著伺服器或工作站功能越來越強大，該擴充卡上言 1 6 1297427 置的電子器件越來越多，導致該擴充卡的高度也會增加，從而令 一些飼服器或工作站内部會有不同高度的擴充卡，但目前之支撐 架或固定架大多是針對同-高度的，*能翻料同高度之擴充 卡。 同~習知之支撐架或固定架設計’大多係採用金屬配合螺絲 14固定方式，不僅在裝配及使用上均非常費時、費工，同時，亦 不方便使用者操作，因此，如果不採取有效之岐方式，以減輕 使用者在更換或新物PGI ®赫擴充卡10時所帶权不便，其 勢必將會令制者對於絲雕巾，翻繁瑣，進轉低裝設新 PCI匯流排擴充卡10之意願，如此一來，將對於pci匯流排擴充 卡10之供給市場’將造成無情之打擊。 另方面觀之，為了因應廣大市場對組裝電腦之需求 技公司不僅要保持產品之優良品f，_，亦必須提高其組裝速 度，因此，對於生產線之組裝速度之提昇，尤其是該Μ匯流排 擴充卡10之固定’亦成為提高組裝電腦生產速度之一項重要因素。 有馨於此’實有必要提供一種可適用於固定不同高度之擴充 卡，並且無需使用裝卸工具（如：螺絲起子）即可輕易組裝及拆 P於電子裝置（如：伺服器）之主機板上之擴充卡固定結構。 因此，本發明的目的就是提供一種可適用於固定不同高度之 擴充卡，亚且無需使職卸工具即可輕易組裝及拆卸於一電子裝 7 1297427 置之主機板上之擴充卡固定結構。 為達成上述目的，本發明係提供一種擴充卡固定結構，應用 於伺服器或工作站等電子裝置上，以固定不同高度之擴充卡，該 電子裝置设體之一侧板對應主機板擴充卡位置設有一收容槽，兮 收容槽兩侧設有二雜卡扣，該二彈性卡扣姆之表面相對並排 凸出設有複數卡持肋，而該收容槽底壁設有一開孔，以與該電子 裝置之内部空間相連通，而該收容槽内容設有一固定架該固定 架中部凸出設有-夾持部，用以穿過收容槽底壁之開孔而與擴充 卡之端緣相鱗’賴賴擴充卡，職固絲兩端設有與該彈 性卡扣卡合之配合部’肋應對擴充卡之高度而卡持於彈性卡扣 對應之相鄰卡持肋之間，從硫翻定架固定於該收容槽中。 相較於習吨術，本發明利用在收容槽兩側設置的彈性卡扣 的表面並排凸&設有魏卡持肋，利賴定架之配合部卡持於相 鄰之卡持肋之間’而將固定架固定於收容槽中，並令該固定架之 夾持部夾持於擴充卡之端緣，而將該擴充卡固定，同時該固定架 之-σ β相&擇與不同之卡持肋相卡合，以固定不同高度之擴充 卡而在拆卸¥，僅需扳動彈性卡扣，令其與固定架之配合部相 脫離’即可令該固定架之夾持部與擴充卡之端緣解除夾持，從而 很便利地拆卸該擴充卡。 #為使對本發明的目的、構造特徵及其功能有進一步的瞭解， 絲配合圖不詳細說明如下· 1297427 【實施方式】 請參閱第二圖所示，為本發明不同高度之擴充卡固定結構應 用於電腦或伺服器等電子裝置上的立體組合圖，其中該電子裝置2 的殼體20至少包括相互對立之第一侧板2〇〇、第二側板2〇1及連 接第一與第二侧板2〇〇、201的第三侧板21，第一、第二、第三侧 板200、201、21與其他側板（未圖示）内設成一收容空間幻，該 收容空間23内部組設有一主機板24，該主機板24 一角並排設置 有複數連接H 240，其巾該等擴充卡25 —端減於該複數連接器 210内，以藉由該等連接器24〇與主機板24電性連接，為將該等 擴充卡25麵安聚在電子裝置2上，以保證其與主機板24之間 的電性連接’該等擴充卡％的側邊均固持有—固定翼片％，該固 疋翼片26藉由-螺絲鎖固於第二侧板2⑴上，而將其一侧固定， 為避免電子裝置2因振動或運送過程巾，損制該擴充卡25之特 ^或印刷板上之零件，該擴充卡25雜主機板24的端緣亦 而加以固疋，本發明正是利用組設於電子裝置2的第三侧板^上 的固定架22㈣該等擴充卡％的端緣鱗，從而令該等擴充卡 25固定在主機板24上。 ” 口月並參閱第三A圖與第三6圖所示，為本發明不同高度之 擴充卡之H]定結構翻於電腦翻服料電子裝置上的立體分解 圖，該電子裝置2的殼體20之第三條21對駐敵24擴充卡 25位置σ又有-收容槽21〇，該收容槽⑽由第三側板μ之表面向 1297427 主機板24方向下凹，並且該收容槽210之底板211設有一開孔 213，以與殼體20之收容空間23相連通。又，該底板211在鄰近 收容槽210兩側的位置背離主機板24向上凸出各設有一彈性卡扣 212 ’且該收容槽210之兩側各設有一開槽214，該開槽214與該 彈性卡扣212相對並與殼體20的收容空間23連通。另，該二彈 性卡扣212相對之表面相對並排凸出設有複數卡持部，在本實施 例中為卡持肋216,以與固定架22的配合部卡合，而將該固定架 22組設於該收容槽210中（容後詳述）。 該固定架22組設於該收容槽21〇中，其中部向主機權24方 向凸設有一夾持部220，在本實施例中該夾持部22〇為一凸塊，且 其中間設有-夾持槽221，以與該擴充卡25之端緣夾持而固定該 擴充卡25。又，該固定帛22鄰近兩端位置處設有一配合部，以與 收容槽210兩側之彈性卡扣212相卡合，在本實施例中，該盼 部為貝牙該岐架之通孔224，該通孔224用以收容該彈性卡扣 212，並且該通孔224 _壁卡持於該彈性卡扣犯的兩相鄰卡持 肋216之間，從而將該固定架22、组設於該收容槽21〇中。另，該 固定架22兩端緣分別設有一彈臂225，該彈臂奶收容於收容槽 210兩侧之開槽214中’並且該彈臂225遠離主機板24的末端設 有-凸起226 ’如此可更進一步防止該固定架22從收容槽加中 脫落。再，該固定架22在夾持部兩侧各凸出設有-凸柱222, 相應的收容槽細底板211上對應設有收容孔215，且該凸柱⑽ 1297427 、上套設有一彈簧223,並且該凸柱您的末端收容於該收容孔中， 如此令彈簣223的-端與該固定架22的表面抵持，而另一端則與 收容槽210的底板211抵持，如此在將該固定架22之夹持部— 與擴充卡25醜緣分離時’只需扳動彈性卡扣212，令通孔 的端緣與卡持肋216脫開，則在彈菁级的彈力下，而固定架^ 向遠離主機板24的方向彈起，從而令固定架22之夹持部22〇與 擴充卡25的端緣分離。 鲁、组裝時，先將擴充卡25、组設於主機板24的連接器上， 然後將彈簧225組設於固定架22的凸柱222上，並將固定架η 組設於收容槽21G中，令收容槽2ω兩端之彈性卡扣212 一端先 套設於固定架22兩端的通孔224中，其後將彈性卡扣加向該收 容槽210兩侧扳開，並下壓固定架22，令固定架22之失持部⑽ 的夹持槽221夾持於擴充卡25之端緣，之後將彈性卡扣2 a釋放， # 從而令通孔224之侧壁卡持於彈性卡扣212相鄰之卡持肋216之 間’如此而將該固定架22、组設容槽21〇中，並令該擴充卡乃 之端緣得以固定。 拆卸時，施力於彈性卡扣212，令其向固定架22的兩侧板開， 令通孔224的端緣與卡持肋训脫開，則在彈菁η5的彈力下， 而固定架22向雜域板24財肖賊，㈣令映架^之爽 持部220與擴充卡25的端緣分離。同時由於固定架22兩端之彈 # 225收容於收容槽210兩侧之開槽214巾，並且該彈臂遠 11 1297427 離主機板24的末端設有凸起226，如此可防止該固定架22從收容 槽210中彈出而丟失。Furthermore, please refer to the first figure, according to the pCI bus expansion card 1G used on the general computer, it is directly in the domain shell by its own - the standard binding bracket u (Bracket) 12 is a plurality of output/input 埠 fixed frame 13 on the rear panel, wherein the fixing bracket 11 is provided with a hole 1U, and the hole (1) is fixed to the output/input 埠 之 13 In this way, ^^ is directly locked in the holes (1), 131 through the screw 14 so that the male bus expansion card H) can be insured on the output/input and frame 13 At the same time, the side of the pci bus expansion card 10 can be horizontally inserted into one of the expansion slots 15 of the printed circuit board. At present, the pci M stream expansion card used on the server or workstation is 1 〇, except for the use of the screw 14 directly _ outside the transmission frame 13, it must be = the other end of the second bus expansion card 10, designed another Support frame or solid not shown), fully expand the card 10 to avoid vibration or transport. At the same time, as the server or workstation becomes more and more powerful, the expansion card says that there are more and more electronic devices placed on the 1 6 1297427, which will increase the height of the expansion card, thus making some feeders or workstations internal. There will be expansion cards of different heights, but most of the current support frames or fixed frames are for the same-height, * can expand the expansion card of the same height. The same as the conventional support frame or fixed frame design, most of them are fixed by metal fitting screws 14, which are not only time-consuming and labor-intensive in assembly and use, but also inconvenient for user operation. Therefore, if it is not effective The embarrassing method to alleviate the inconvenience of the user when replacing or replacing the PGI® Hexue expansion card 10, which will inevitably lead to the system to turn over the cumbersome, low-profile new PCI bus expansion card for the silk carving towel. 10 willingness, as a result, will provide a ruthless blow to the supply market for the pci bus expansion card 10. On the other hand, in order to meet the needs of the mass market for assembling computers, technology companies must not only maintain the excellent products of the products, but also increase the assembly speed. Therefore, the assembly speed of the production line is increased, especially the bus. The fixing of the expansion card 10 has also become an important factor in increasing the speed of assembly of the computer. It is necessary to provide an expansion card that can be used to fix different heights, and it is easy to assemble and disassemble the motherboard of an electronic device (such as a server) without using a loading and unloading tool (such as a screwdriver). The expansion card is fixed on the structure. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an expansion card securing structure that can be adapted to secure expansion cards of different heights and that can be easily assembled and disassembled on an electronic board 7 1297427 without the need for a work tool. In order to achieve the above object, the present invention provides an expansion card fixing structure, which is applied to an electronic device such as a server or a workstation to fix an expansion card of different heights, and one side panel of the electronic device is corresponding to the expansion card position of the motherboard. There is a receiving slot, and two sides of the receiving slot are provided with two kinds of latches, and the surfaces of the two elastic latching buckles are arranged side by side with a plurality of latching ribs, and the bottom wall of the receiving slot is provided with an opening for the electronic The inner space of the device is connected, and the receiving slot is provided with a fixing frame. The middle portion of the fixing frame is convexly provided with a clamping portion for passing through the opening of the bottom wall of the receiving groove to form a scale with the edge of the expansion card. Relying on the expansion card, the two ends of the working wire are provided with the engaging portion of the elastic buckle, and the rib is supported between the adjacent clamping rib corresponding to the elastic buckle, and is set from the sulfur The frame is fixed in the receiving slot. Compared with the conventional technique, the present invention utilizes the surface of the elastic buckle provided on both sides of the receiving groove to be side by side convex & and is provided with a Wei card holding rib, and the mating portion of the Lilai fixed frame is held by the adjacent holding rib Fixing the fixing frame in the receiving groove, and clamping the clamping portion of the fixing frame to the end edge of the expansion card, and fixing the expansion card, and the -σ β phase & Different card ribs are engaged, and the expansion card of different heights is fixed to be disassembled, and only the elastic buckle is required to be disengaged from the mating portion of the fixing frame to make the clamping portion of the fixing frame The end of the expansion card is released from the edge, so that the expansion card can be easily removed. In order to further understand the object, structural features and functions of the present invention, the wire mating diagram is not described in detail below. 1297427 [Embodiment] Please refer to the second figure for the application of the expansion card fixing structure of different heights of the present invention. a three-dimensional combination diagram on an electronic device such as a computer or a server, wherein the housing 20 of the electronic device 2 includes at least a first side panel 2〇〇 opposite to each other, a second side panel 2〇1, and first and second sides connected thereto. The third side plate 21 of the plate 2, 201, the first, second, and third side plates 200, 201, 21 and the other side plates (not shown) are provided with a receiving space, and the inner space of the receiving space 23 A motherboard 24 is disposed. The motherboard 24 is provided with a plurality of connections H 240 arranged side by side. The expansion card 25 is terminated in the plurality of connectors 210 to be connected to the motherboard 24 by the connectors 24 . Electrically connecting, the surface of the expansion card 25 is condensed on the electronic device 2 to ensure an electrical connection between the expansion card and the motherboard 24, and the sides of the expansion card are fixedly held. %, the fixed flap 26 is locked to the second side by a screw 2(1), and fixing one side thereof, in order to prevent the electronic device 2 from damaging the special card of the expansion card 25 or the printed board due to vibration or transporting the process towel, the end edge of the expansion card 25 main board 24 is also In the present invention, the fixing frame 22 (four) of the expansion card is assembled on the third side panel of the electronic device 2, so that the expansion card 25 is fixed on the motherboard 24. . </ br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br> The third pair 21 of the body 20 has a position σ and a receiving groove 21〇, and the receiving groove (10) is recessed from the surface of the third side plate μ toward the 1297427 main plate 24, and the receiving groove 210 is The bottom plate 211 is provided with an opening 213 for communicating with the receiving space 23 of the housing 20. Further, the bottom plate 211 is disposed outwardly away from the main board 24 at a position adjacent to the two sides of the receiving slot 210, and is respectively provided with an elastic buckle 212'. A slot 214 is defined in each of the two sides of the receiving slot 210. The slot 214 is opposite to the elastic latch 212 and communicates with the receiving space 23 of the housing 20. The two elastic latches 212 are opposite to each other. A plurality of latching portions are provided, and in this embodiment, the latching ribs 216 are engaged with the mating portions of the mounting brackets 22, and the mounting brackets 22 are assembled in the receiving slots 210 (described in detail later). The fixing frame 22 is disposed in the receiving slot 21〇, and a middle portion is convexly disposed with a clip in the direction of the host right 24 In the embodiment 220, the clamping portion 22 is a protrusion, and a clamping groove 221 is disposed in the middle thereof to clamp the end edge of the expansion card 25 to fix the expansion card 25. A fixing portion 22 is disposed at a position adjacent to the two ends to engage with the elastic buckle 212 on both sides of the receiving slot 210. In this embodiment, the portion is the through hole 224 of the truss. The through hole 224 is configured to receive the elastic buckle 212, and the through hole 224 _ wall is held between the two adjacent holding ribs 216 of the elastic buckle, so that the fixing frame 22 is assembled on the The two ends of the fixing frame 22 are respectively provided with a spring arm 225, which is received in the slot 214 on both sides of the receiving slot 210 and the arm 225 is away from the end of the motherboard 24. The protrusion 226 ′ is further configured to prevent the fixing frame 22 from being detached from the receiving groove. Further, the fixing frame 22 is convexly disposed on both sides of the clamping portion, and the corresponding receiving groove is thin. The bottom plate 211 is correspondingly provided with a receiving hole 215, and the protruding post (10) 1297427 and the upper sleeve are provided with a spring 223, and the end of the protruding post is received in the receiving body. Thus, the end of the magazine 223 is abutted against the surface of the holder 22, and the other end is abutted against the bottom plate 211 of the receiving slot 210, such that the clamping portion of the holder 22 is coupled to the expansion card 25. When the ugly edge is separated, it is only necessary to pull the elastic buckle 212 so that the end edge of the through hole is disengaged from the retaining rib 216, and the elastic frame is elasticized under the elastic level, and the fixing frame bounces away from the main board 24 Therefore, the clamping portion 22 of the fixing frame 22 is separated from the edge of the expansion card 25. When assembling, the expansion card 25 is first assembled on the connector of the motherboard 24, and then the spring 225 is assembled. The two ends of the elastic buckle 212 at the two ends of the receiving groove 2ω are firstly disposed in the through holes 224 at the two ends of the fixing frame 22, and the fixing frame η is disposed in the receiving hole 21 224. Then, the elastic buckle is applied to the two sides of the receiving groove 210, and the fixing frame 22 is pressed down, so that the clamping groove 221 of the missing portion (10) of the fixing frame 22 is clamped to the edge of the expansion card 25, and then the elastic will be elastic. The buckle 2 a is released, so that the side wall of the through hole 224 is caught between the adjacent locking ribs 216 of the elastic buckle 212. Thus, the fixing frame 22, the group The receptacle 21 is disposed in the pocket and the end edge of the expansion card is fixed. When disassembling, the elastic buckle 212 is applied to the two sides of the fixing frame 22, so that the end edge of the through hole 224 is disengaged from the clamping rib, and the elastic force of the elastic η5 is fixed, and the fixing frame is fixed. 22 to the miscellaneous domain board 24 financial thieves, (4) the screen frame ^ the cool holding part 220 and the edge of the expansion card 25 separated. At the same time, since the bullets # 225 at both ends of the fixing frame 22 are received in the slots 214 on both sides of the receiving slot 210, and the elastic arm 11 1197427 is provided with a protrusion 226 from the end of the main board 24, the fixing bracket 22 can be prevented. It is ejected from the receiving slot 210 and lost.
相較於習知技術，本發明利用在收容槽21〇兩侧設置的彈性 卡扣Ή2的表面並排凸出設有複數卡獅216，利用固定架22之 配合部卡持於相鄰之卡持肋加之間，而將固定架2丨6固定於收 容槽210中，並令該固定架22之夾持部220夾持於擴充卡25之 私緣而將„亥擴充卡25固定’同時該固定帛22之配合部相選擇 與不同之卡持肋216相卡合，賴定糾高度之氣卡μ，即如 固疋相對主機板24⑹的擴充卡25時，細定架22的配合部則 與雜主機板24的卡持肋m卡持，而嗎目對主機板％較低 的擴充卡25時’朗定架22的配合部職騎主機板24的卡持 肋训卡持。並且該固定架22與收容槽21〇採用卡扣的方式組合， 是以在拆卸時’僅需扳動彈性卡扣212，令其與固定架22之配口人 部械離，即可令該峡架22之夾持部22〇與擴充卡μ之稱 解除夾持，從而很便糧拆卸該擴充卡25。 以上所述者，僅為本發明其中的較佳實施例而已 限定本發明的實施範圍；即凡依本發明申請專利範等 變化與修飾’料本㈣補範騎涵蓋。 乍的均4 【圖式簡單說明】 第-圖為習知電腦之擴充卡之固定結構 第二圖為本發明祠高度之卡©定結構翻於電子裝置 12 1297427 上的立體組合圖。 第三A圖為本發明不同高度之擴充卡之固定結構應用於電子 裝置上的立體分解圖。 第三B圖為第三A圖中圓圈A處的局部放大圖。 【主要元件符號說明】 電子裝置 2 殼體 20 第一侧板 200 第二侧板 201 第三侧板 21 收容槽 210 底板 211 彈性卡扣 212 開孔 213 開槽 214 收容孔 215 卡持肋 216 固定架 22 失持部 220 夾持槽 221 凸柱 222 13 1297427 彈簧 223 通孔 224 彈臂 225 凸起 226 收容空間 23 主機板 24 連接器 240 擴充卡 25 固定翼片 26Compared with the prior art, the present invention utilizes the surface of the elastic snap ring 2 disposed on both sides of the receiving slot 21 to be arranged side by side to be provided with a plurality of card lions 216, and the mating portions of the fixing frame 22 are used to hold the adjacent cards. Between the ribs, the fixing frame 2丨6 is fixed in the receiving groove 210, and the clamping portion 220 of the fixing frame 22 is clamped on the private edge of the expansion card 25 to fix the AI expansion card 25 while fixing. The matching portion of the 帛22 is selected to be engaged with the different ribs 216, and the air card μ of the height is determined, that is, when the expansion card 25 of the main board 24 (6) is fixed, the fitting portion of the fixing frame 22 is The latching ribs m of the miscellaneous motherboard 24 are clamped, and when the expansion card 25 having a lower motherboard value is used, the engaging ribs of the mating portion of the mating bracket 22 of the Langding rack 22 are clamped. The frame 22 and the receiving groove 21 are combined by means of a buckle, so that when the disassembly is performed, the elastic buckle 212 is only required to be disengaged from the fitting portion of the fixing frame 22, so that the girder 22 can be made. The clamping portion 22 is detached from the expansion card μ, so that the expansion card 25 is easily removed. The above is only the present invention. The preferred embodiment of the present invention has been limited to the scope of implementation of the present invention; that is, the variation of the patent application according to the present invention and the modification of the 'materials' (four) complements the ride. 均的均4 [Simple diagram description] The first picture is a ha The second structure of the expansion card of the computer is the three-dimensional combination diagram of the card structure of the invention, which is turned on the electronic device 12 1297427. The third A picture shows the fixed structure of the expansion card of different heights of the invention. 3D exploded view of the electronic device. The third B is a partial enlarged view of the circle A in the third A. [Description of main components] The electronic device 2 The housing 20 The first side plate 200 The second side plate 201 Third Side plate 21 receiving groove 210 bottom plate 211 elastic buckle 212 opening 213 slot 214 receiving hole 215 holding rib 216 fixing frame 22 missing portion 220 clamping groove 221 boss 222 13 1297427 spring 223 through hole 224 elastic arm 225 convex 226 accommodating space 23 motherboard 24 connector 240 expansion card 25 fixed wing 26