200934370 九、發明說明： 【發明所屬之技術領域】 本發明涉及一種屏敝裝置，尤其涉及一種電磁屏蔽裝 置。 ' 【先前技術】 目前，隨著電子技術的發展，電子設備在人們日常的 ❹生活、工作、學習的已成為不可缺少的工具。通常電子設 備如電視機、電腦、測試設備等都安裝有眾多的電子元件， 電子設備工作時，電子元件會產生電磁波。這樣不僅使得 2部的電子元件之間會產生電磁干擾，影響電子設備的正 常工作，而且還會向外輻射，對人體成傷害。因此，如何 屏蔽電子元件產生的電磁波已成為業界迫切需要解決的問 題。 業界通常採用的電磁屏蔽裝置為一體成型的罩體，其 ❹具有-頂壁和自頂壁周緣—體垂直延伸而出的側壁。使用 時’將該罩體罩設於所需要屏蔽的電子元件上，並通過焊 接等方式將側壁固定於設置該電子元件的電路板上。. a然而在實際生產或者修理過程中，ft子元件出現問 題3 ’工程人員需要先將電磁屏蔽裝置解焊後拆下，然後 ^查看電子％件。上述的電磁屏蔽裝置使得工程人員在 操作時較為不便。 200934370 【發明内容】 有鑒於此，有必要提供一種便於工程人員操作的電磁 屏蔽裝置。 一種電磁屏蔽裝置，用於屏蔽電磁波，電磁屏蔽裝置 包括支撐部及蓋板，支撐部為多個依次連接的側壁圍成的 兩端開口的中空框體，所多個側壁中的一個侧壁設有縫 隙，蓋板用於從縫隙插入支撐部内，以遮擋支撐部一端的 ^開口。 因為，蓋板是從側壁上的縫隙插入支撐部内的，所以， 虽電路板上的電子元件出現問題時，工程人員可將蓋板拉 出支撐部，工程人員即可進行查看，以此便於工程人員操 作。 、 【實施方式】 如圖1所示，為一較佳實施方式的電磁屏蔽装置100 ©分解圖。電磁屏蔽裝置100包括支撐部120、可裝配在支 撐。卩120上的蓋板11〇以及一用以將蓋板11〇固定在側壁 上的固定件130。其中，支撐部12〇和蓋板11〇由具有良 好電磁屏蔽性能和散熱性能的材料構成。 蓋板110為一矩形的平板，其包括第一邊緣111和與 第一邊緣111相對的第二邊緣112。第一邊緣lu凸伸有 一便於把持的把手113,把手113為一凸塊。第一邊緣 處還設有多個垂直貫穿于蓋板11〇的穿孔115，穿孔ιΐ5 設有内螺紋。在本實施方式中，穿孔115的數目為兩個。 200934370 支撐部120為多個依次連接的側壁圍成的兩端開口的 中空框體。支撐部120包括依次連接的第一側壁121、第 二側壁122、第三側壁123和第四側壁124，且第一側壁 121與第四側壁124相連，使得第一側壁121、第二側壁 122、第三側壁123和第四側壁124圍成兩端開口的中空框 體。第一側壁121開設有一狹長的缝隙126，蓋板110可 在缝隙126内滑動。第一侧壁121上還設有與穿孔115的 數目相同的多個通孔127，通孔127的位置與穿孔115的 〇 位置一 一對應。第二側壁122、第三側壁123和第四側壁 124的内壁面128上各開設有一順次連通的滑槽129。且滑 槽129還與缝隙126相連通。 固定件130可為螺釘、螺栓等元件。 組裝時：首先，將蓋板110穿過缝隙126後滑入滑槽 129内，使得蓋板110將支撐部120的一端開口封閉，此 時，兩穿孔115與兩通孔127分別相對，第一邊緣111位 ◎於縫隙126内；然後，將固定件130穿過通孔127後螺合 入穿孔115内，使得蓋板110固定在支撐部120上，至此， 組裝完畢（如圖2所示）。 如圖3所示，電路板30上設有電子元件31，使用時： 將支撐部120的未被遮擋的端部固定在電路板30上，並使 得電子元件31被扣在120内，再通過焊接、粘接、螺釘固 定等方式將電磁屏蔽裝置100固定在電路板30上，以屏蔽 電子元件31除正常收發電磁波之外向其他周邊散發的電 磁波。 200934370 因蓋板110是通過固定件13〇固定在支撑部12〇上， 使得支揮部120上遠離電路板3〇的一端開口封閉。因此， 若在實際生產或者修理的過程中，電子元件31出現問題 時’工程人員可直接將固定件130取下，然後將握持住把 手113 ’施加一作用力，使蓋板11〇從滑槽129内拉出， 並從縫隙126處脫離支撐部12〇，工程人員即可進行查看， 1 更於工程人M操作。故可避免現有技術中需要先將電磁屏 〇敝裝置，焊後拆下然後才能查看電子元件31 #帶來的不 便同和·，還可以防止解焊時損傷電路板3〇上電子元件的 發生另外，因盍板110的第一邊緣hi固定在縫隙 内如此，還可以防止蓋板11_〇發生龜曲變形。 【圖式簡單說明】 圖1係一較佳實施方式的電磁屏蔽裝置之分解圖。 圖2係圖1中電磁屏蔽裝置之立體圖。 ® ® 3係圖電磁屏蔽裝置使用狀態示意圖。 111 113 120 122 124 【主要元件符號說明】 電磁屏蔽裝置 1〇() 第—邊緣 把手 支揮部 第二側壁 第四侧壁 蓋板 110 第二邊緣 112 穿孔 115 第一侧壁 121 第三側壁 123 縫隙 126 9 200934370 通孔 127 内壁面 128 滑槽 129 固定件 130 電路板 30 電子元件 31200934370 IX. Description of the Invention: [Technical Field] The present invention relates to a screen device, and more particularly to an electromagnetic shielding device. [Prior Art] At present, with the development of electronic technology, electronic devices have become an indispensable tool for people's daily life, work and study. Usually, electronic devices such as televisions, computers, test equipment, etc. are equipped with a large number of electronic components. When the electronic device is in operation, the electronic components generate electromagnetic waves. This not only causes electromagnetic interference between the two electronic components, but also affects the normal operation of the electronic device, and also radiates outward, causing harm to the human body. Therefore, how to shield electromagnetic waves generated by electronic components has become an urgent problem in the industry. The electromagnetic shielding device commonly used in the industry is an integrally formed cover body having a top wall and side walls extending perpendicularly from the periphery of the top wall. When in use, the cover is placed on the electronic component to be shielded, and the side wall is fixed to the circuit board on which the electronic component is mounted by soldering or the like. a However, in the actual production or repair process, the ft sub-component has a problem. 3 Engineers need to first un-deposit the electromagnetic shielding device and then remove the electronic component. The electromagnetic shielding device described above makes it inconvenient for the engineer to operate. 200934370 SUMMARY OF THE INVENTION In view of the above, it is necessary to provide an electromagnetic shielding device that is convenient for an engineer to operate. An electromagnetic shielding device for shielding electromagnetic waves, the electromagnetic shielding device comprises a supporting portion and a cover plate, wherein the supporting portion is a hollow frame body which is open at both ends surrounded by a plurality of sequentially connected side walls, and one of the plurality of side walls is provided There is a gap, and the cover plate is used to insert into the support portion from the slit to block the opening at one end of the support portion. Because the cover plate is inserted into the support portion from the gap on the side wall, when the electronic component on the circuit board has a problem, the engineer can pull the cover plate out of the support portion, and the engineer can view it, thereby facilitating the engineering. Personnel operations. [Embodiment] As shown in Fig. 1, an electromagnetic shielding device 100 according to a preferred embodiment is an exploded view. The electromagnetic shielding device 100 includes a support portion 120 that can be mounted on a support. A cover 11 上 on the 卩 120 and a fixing member 130 for fixing the cover 11 在 to the side wall. Among them, the support portion 12A and the cover plate 11b are made of a material having good electromagnetic shielding performance and heat dissipation performance. The cover plate 110 is a rectangular flat plate including a first edge 111 and a second edge 112 opposite the first edge 111. The first edge lu protrudes with a handle 113 for easy grip, and the handle 113 is a bump. The first edge is further provided with a plurality of through holes 115 vertically penetrating through the cover 11 , and the perforated ΐ 5 is provided with internal threads. In the present embodiment, the number of the perforations 115 is two. 200934370 The support portion 120 is a hollow frame that is open at both ends surrounded by a plurality of sequentially connected side walls. The support portion 120 includes a first sidewall 121, a second sidewall 122, a third sidewall 123, and a fourth sidewall 124, and the first sidewall 121 is connected to the fourth sidewall 124 such that the first sidewall 121 and the second sidewall 122 are The third side wall 123 and the fourth side wall 124 enclose a hollow frame that is open at both ends. The first side wall 121 defines an elongated slit 126, and the cover plate 110 can slide in the slit 126. The first side wall 121 is further provided with a plurality of through holes 127 having the same number as the through holes 115, and the positions of the through holes 127 are in one-to-one correspondence with the 〇 positions of the through holes 115. A sliding groove 129 is formed in each of the inner wall surface 128 of the second side wall 122, the third side wall 123, and the fourth side wall 124. The chute 129 is also in communication with the slot 126. The fixing member 130 may be an element such as a screw or a bolt. When assembling, first, the cover plate 110 is inserted into the slot 129 and then slides into the sliding slot 129, so that the cover 110 closes one end of the support portion 120. At this time, the two through holes 115 and the two through holes 127 are respectively opposed to each other. The edge 111 is placed in the slit 126. Then, the fixing member 130 is inserted into the through hole 127 and screwed into the through hole 115, so that the cover plate 110 is fixed on the support portion 120, and the assembly is completed (as shown in FIG. 2). . As shown in FIG. 3, the circuit board 30 is provided with an electronic component 31. When in use: the unobstructed end of the support portion 120 is fixed on the circuit board 30, and the electronic component 31 is buckled in 120 and passed through. The electromagnetic shielding device 100 is fixed to the circuit board 30 by soldering, bonding, screwing, or the like to shield the electromagnetic wave emitted from the electronic component 31 to other peripherals in addition to the normal transmission and reception of electromagnetic waves. 200934370 The cover plate 110 is fixed to the support portion 12A by the fixing member 13〇, so that the one end of the branch portion 120 away from the circuit board 3〇 is closed. Therefore, if there is a problem in the electronic component 31 during the actual production or repair process, the engineer can directly remove the fixing member 130, and then hold the handle 113' to apply a force to make the cover plate 11 slippery. The groove 129 is pulled out and separated from the support portion 12 from the slit 126, and the engineer can view it, and the operator M operates. Therefore, it is possible to avoid the need to first remove the electromagnetic screen device after soldering, and then to view the inconvenience caused by the electronic component 31#, and also prevent the occurrence of electronic components on the circuit board 3 during the soldering process. Since the first edge hi of the seesaw 110 is fixed in the slit, it is also possible to prevent the cover 11_〇 from being deformed by the tortoise. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded view of an electromagnetic shielding device of a preferred embodiment. 2 is a perspective view of the electromagnetic shielding device of FIG. 1. ® ® 3 Diagram of the state of use of the electromagnetic shielding device. 111 113 120 122 124 [Description of main component symbols] Electromagnetic shielding device 1〇() First-edge handle branching second side wall fourth side wall cover 110 Second edge 112 Perforation 115 First side wall 121 Third side wall 123 Slit 126 9 200934370 Through hole 127 Inner wall surface 128 Chute 129 Fixing piece 130 Circuit board 30 Electronic component 31