201210461 六、發明說明： 【發明所屬之技術領域】 闺本發明涉及-種電磁屏蔽罩及應用該電磁屏蔽罩之印刷 電路板裝置。 【先前技術】 [0002] Ο [0003]201210461 VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to an electromagnetic shielding cover and a printed circuit board device using the electromagnetic shielding cover. [Prior Art] [0002] Ο [0003]
電子通訊行業中’為抑制通過空間傳播之電磁波對電子 元件之干擾’或者電子元件本身發出之電磁波對其他電 子元件之干擾，-般料電爾蔽“接至印刷電路板 上以對印刷電路板上電子元件進行魏。傳統之電磁屏 蔽罩固接至印刷電路板上之方式係將電磁屏蔽罩直接焊 接至印刷電路板上，或者先在印則路板上焊接復數固 定爽，使固定k夾持時上，電磁屏«通過其側壁 :較夹之央持口失持而固定。但上述電磁屏蔽罩之固 接方式或者造成«以元时維修或更財方便，或 者造成印刷電路板結構複雜，製造過輕繁項。 【發明内容】 鑒於上述内容，有必要提供—種結構簡單，便於裝取至 印刷電路板之電磁屏蔽罩β 闺另’有必要提供—種製造方便之印刷電路板裝置。 _5]-種電磁屏蔽罩，用於紐印刷電路板上之電子元件， 該電磁屏蔽罩之侧壁上間隔地形成有抵持緣與勾持緣， 所述抵持緣用以壓抵印刷電路板之上表面，所述勾持緣 用、穿過印刷電路板上之通孔，使得勾持緣之末端與印 刷電路板之下表面抵持。 099128752 表單編號Α0101 第3頁/共13頁 0992050493-0 201210461 [0006] [0007] [0008] [0009] 板P叫電路板裝置，包括一電磁屏蔽罩與一印刷電路 所述電磁屏蔽罩形成有抵持緣與勾持緣，所述勾持 緣呈釣狀，甘4 2 再包括一可彈性壓合之勾持臂’所述印刷電 ^ 、有—上表面及相對之一下表面，且印刷電路板開 貫通所述上、下表面並且位置對應所述勾持緣之通 骏所述電磁屏蔽罩至印刷電路板，勾持緣穿過電 路板上之通孔，使得勾持臂之末端與印刷電路板之下表 抵持，抵#緣壓抵印刷電路板之上表自，從而電路板 為所述抵持緣與勾持緣夹持。 ，於I知技術，本印刷電路板裝置、结構簡單製造方 便，且便於電磁屏蔽罩裝取，電磁屏蔽罩上僅 需形成抵 持緣與勾持緣，印刷電路板上僅需開設通孔’通過勾持 緣穿過所述通孔，使得勾持臂之末端與印刷電路板之下 表面抵持’抵持緣I抵印刷電路板之上表面，如此電磁 屏鲛罩固定在印刷電路板上；當需取下電磁屏蔽罩時， 只需按壓勾持臂使勾持緣退出通孔即可。 【實施方式】 ::: :: . .... 明參閲圖1及圖2 ’本發明較佳實施例印刷電路板裝置100 包括-電磁屏蔽罩1()及_印刷電路板2()，所述電磁屏蔽 罩10可拆卸地安裝在印刷電路板20上，用以遮蔽印刷電 路板20之電子元件。 所述電磁屏蔽罩10包括_頂壁12、形成在頂受12邊緣且 向下彎折之復數側壁14、及延伸在側壁14底料間隔排 布之復數抵持緣16與復數勾持緣18。 099128752 本實施例中 表單編號A0101 所述頂壁12呈矩形，對應地在其邊緣形成 第4頁/共13頁 09920504 [0010] 201210461 有四個甸壁14。該頂壁12上開設有復數散熱孔122，以供 遮蔽在電磁屏蔽罩ίο内之電子元件散熱。所述每一側壁 14大致與所述頂壁12垂直地向下彎折。每一所述抵持緣 16呈板狀，其於側壁14之底部朝外側延伸，且與所述頂 壁12平行’用以在裝配後與印刷電路板2〇之上表面抵持 。該抵持緣16上還形成有復數凸包162，該凸包162在抵 持緣16之下表面凸出’可經衝壓抵持緣16之上表面形成 ’用於與印刷電路板2〇形成電性導通配合。所述勾持緣 18呈釣狀’其包括一延伸臂182及一勾持臂184。所述延 伸臂182於側壁14之底部沿例壁14向下延伸，該延伸臂 182之延伸長度較所述印刷電路板20之厚度大。所述勾持 臂184朝外侧向上彎折地連接在延伸臂182末端，與延伸 臂182形成一定之夾角，且向上延伸之長度不及延伸臂 182之長度。該勾持臂184具有一定之痒牲，可相對所述 延伸臂182壓合’即所述勾持臂184可在外力作用下壓合 至延伸臂182上處於疊合狀態，在外力移除後，勾持臂 18 4相對延伸臂18|回板至原始狀態。 [0011] 所述印刷電路板20具有一上表面21及相對之一下表面23 。該上表面21上佈設有復數電子元件212，為了避免電磁 干擾’電子元件212需要被所述電磁屏蔽罩“遮蔽。該印 刷電路板20上開設有復數通孔22，該復數通孔22貫通上 表面21與下表面23且位置與所述勾持緣18對應，以供所 述勾持緣18穿過而使得電磁屏蔽罩勾持於印刷電路板 20上。每一通孔22為矩形孔，其孔寬較小’使得勾持緣 18穿過該通孔22時’所述勾持臂184需相對延伸臂182壓 099128752 表單編號A0101 第5頁/共13頁 0992050493-0 201210461 合而夾角變小才能穿過。該印刷電路板2〇上還形成有复 數凹部2 4，該凹部2 4用於配合所述抵持緣1 6上之凸勺 162，使得抵持緣16與印刷電路板20抵持更穩定。同時 所述每一凹部24内形成有一焊點（圖未示），該焊點用 於與所述凸包162抵持，使得凸包162與焊點形成可導電 連接。所述復數凹部24内之焊點通過一導電電路巧電性 導通，且該導電電路25連接印刷電路板2〇上之—接地電 路（圖未示），如此使得電磁屏蔽罩1〇與接地電路電性 導通’使形成在電磁屏蔽罩10上之靜電可及時地導除。 [0012] 組裝該印刷電路板裝置100時’將所述電磁屏蔽罩1〇置於 印刷電路板20上，使得所述勾持緣18對應地套入所述通 孔22 ;然後下壓該電磁屏蔽罩1 〇，使所述勾持緣18之勾 持臂184相對延伸臂182彈性地壓合且穿過該通孔22，然 後勾持臂184展開，則勾持臂184之末端與所述印刷電路 板20之下表面23抵持。此晴，所述抵持緣16壓抵印刷電 路板20之上表面21，所述4持绦Ϊ6上之凸包162對應地 收容於凹部24内且與凹部24,31焊點抵持。如此，印刷 .： 電路板20為所述抵持緣16與勾持緣18之勾持臂184夾持 ’所述電磁屏蔽罩10可穩定地裝配在印刷電路板2〇上， 且遮蔽所述電子元件212。 [0013] 备需要拆奸所述電磁屏蔽罩10時，僅需按壓勾持臂184， 使勾持臂184相對延伸臂182之夾角變小，並向上遞推勾 持緣18，使勾持緣18可從通孔22退出，如此，可便捷地 將所述電磁屏蔽罩1〇拆卸。 [0014] 综上可知，本印刷電路板裝置結構簡單、製造方便，且 099128752 表單蝙號Α0101 第6頁/共13頁 0992050493-0 201210461 便於電磁屏蔽罩裝取。通過在電磁屏蔽罩上形成抵持緣 與勾持緣，在印刷電路板上開設通孔，勾持緣穿過所述 通孔，使得勾持臂之末端與印刷電路板之下表面抵持， 抵持緣壓抵印刷電路板之上表面，如此，電磁屏蔽罩固 定在印刷電路板上。當需取下電磁屏蔽罩時，只需按壓 勾持臂使勾持緣退出通孔即可。 【圖式簡單說明】 [0015] 圖1係本發明較佳實施例印刷電路板裝置之分解示意圖；In the electronic communication industry, 'to suppress the interference of electromagnetic waves transmitted through space to electronic components' or the electromagnetic waves emitted by the electronic components themselves interfere with other electronic components, and the materials are electrically connected to the printed circuit board to the printed circuit board. The upper electronic component is carried out by Wei. The traditional electromagnetic shielding cover is fixed to the printed circuit board by directly soldering the electromagnetic shielding cover to the printed circuit board, or firstly soldering a plurality of fixed cooling plates on the printed circuit board to make the fixed k-clip On time, the electromagnetic screen « passes through its side wall: it is fixed by the holding of the clamp at the center of the clamp. However, the fixing method of the electromagnetic shield mentioned above may cause the maintenance of the yuan to be more convenient or more complicated, or the structure of the printed circuit board is complicated. In view of the above, it is necessary to provide an electromagnetic shielding cover which is simple in structure and easy to be attached to a printed circuit board. 闺In addition, it is necessary to provide a printed circuit board device which is convenient to manufacture. _5] - an electromagnetic shielding cover for electronic components on a printed circuit board, the side walls of the electromagnetic shielding cover are formed with a resisting edge at intervals a hooking edge for pressing against an upper surface of the printed circuit board, the hooking edge for passing through the through hole of the printed circuit board, so that the end of the hooking edge and the lower surface of the printed circuit board 099128752 Form No. 1010101 Page 3 / Total 13 Page 0992050493-0 201210461 [0007] [0008] [0009] The board P is called a circuit board device and includes an electromagnetic shielding cover and a printed circuit for the electromagnetic shielding. The cover is formed with a resisting edge and a hooking edge, and the hooking edge is in the shape of a fishing rod, and the cover member further includes an elastically pressable hooking arm, the printed circuit, the upper surface and the opposite lower surface. And the printed circuit board opens through the upper and lower surfaces and is located corresponding to the hooking edge of the electromagnetic shielding cover to the printed circuit board, and the hooking edge passes through the through hole of the circuit board, so that the hook arm The end of the printed circuit board abuts against the underside of the printed circuit board, and the edge of the printed circuit board is pressed against the printed circuit board, so that the circuit board is clamped by the resisting edge and the hooking edge. The plate device and the structure are simple and convenient to manufacture, and the electromagnetic shielding cover is convenient to be taken, and the electromagnetic Only the abutting edge and the hooking edge need to be formed on the mask, and only the through hole is required to be inserted through the through hole through the hooking edge, so that the end of the hooking arm abuts against the lower surface of the printed circuit board. 'Resist the edge I against the upper surface of the printed circuit board, so that the electromagnetic screen cover is fixed on the printed circuit board; when the electromagnetic shield is to be removed, simply press the hook arm to make the hook edge exit the through hole. [Embodiment] ::: :: . . . Referring to FIG. 1 and FIG. 2 'The preferred embodiment of the present invention, the printed circuit board device 100 includes - an electromagnetic shield 1 () and a printed circuit board 2 () The electromagnetic shield 10 is detachably mounted on the printed circuit board 20 for shielding electronic components of the printed circuit board 20. The electromagnetic shield 10 includes a top wall 12 formed at the top of the 12 edge and downward The plurality of side walls 14 of the bend and the plurality of resisting edges 16 and the plurality of hooking edges 18 extending along the bottom of the side wall 14 are arranged. 099128752 In the present embodiment, the top wall 12 of the form number A0101 has a rectangular shape, correspondingly formed at its edge. Page 4 / Total 13 pages 09920504 [0010] 201210461 There are four walls 14 . A plurality of heat dissipation holes 122 are defined in the top wall 12 for dissipating heat from the electronic components shielded in the electromagnetic shielding cover. Each of the side walls 14 is substantially bent downwardly perpendicular to the top wall 12. Each of the abutting edges 16 has a plate shape extending outwardly from the bottom of the side wall 14 and parallel to the top wall 12 for resisting the upper surface of the printed circuit board 2A after assembly. A plurality of convex hulls 162 are formed on the resisting edge 16, and the convex hull 162 protrudes from the lower surface of the resisting edge 16 to be formed on the upper surface of the stamping resisting edge 16 for forming with the printed circuit board 2 Electrical conduction. The hooking edge 18 is in the form of a fishing rod. It includes an extension arm 182 and a hooking arm 184. The extension arm 182 extends downwardly along the wall 14 at the bottom of the side wall 14. The extension arm 182 has a length greater than the thickness of the printed circuit board 20. The hooking arm 184 is bent upwardly to the end of the extending arm 182, forming an angle with the extending arm 182, and extending upwardly less than the length of the extending arm 182. The hooking arm 184 has a certain degree of itching and can be pressed against the extending arm 182. That is, the hooking arm 184 can be pressed under the external force to the extending arm 182 in a superposed state, after the external force is removed. , the arm 18 4 relative to the extension arm 18 | back to the original state. [0011] The printed circuit board 20 has an upper surface 21 and an opposite lower surface 23. The upper surface 21 is provided with a plurality of electronic components 212. In order to avoid electromagnetic interference, the electronic component 212 needs to be "shielded by the electromagnetic shielding cover. The printed circuit board 20 is provided with a plurality of through holes 22, and the plurality of through holes 22 are penetrated. The surface 21 and the lower surface 23 correspond to the hooking edge 18 for the hooking edge 18 to pass through so that the electromagnetic shield is hooked on the printed circuit board 20. Each of the through holes 22 is a rectangular hole, The hole width is smaller 'when the hooking edge 18 passes through the through hole 22', the hooking arm 184 needs to be pressed against the extension arm 182 by 099128752. Form No. A0101 Page 5 / Total 13 Page 0992050493-0 201210461 The printed circuit board 2 is further formed with a plurality of recesses 24 for engaging the cavities 162 on the resisting edges 16 such that the resisting edges 16 are offset from the printed circuit board 20. It is more stable. At the same time, a solder joint (not shown) is formed in each recess 24, and the solder joint is used to resist the convex hull 162, so that the convex hull 162 forms an electrically conductive connection with the solder joint. The solder joints in the plurality of recesses 24 are electrically connected through a conductive circuit, and the The electrical circuit 25 is connected to a grounding circuit (not shown) on the printed circuit board 2 such that the electromagnetic shielding cover 1 is electrically connected to the grounding circuit. The static electricity formed on the electromagnetic shielding cover 10 can be removed in time. [0012] when assembling the printed circuit board device 100, the electromagnetic shielding cover 1 is placed on the printed circuit board 20 such that the hooking edge 18 is correspondingly inserted into the through hole 22; then the electromagnetic is depressed The shielding cover 1 is configured such that the hooking arm 184 of the hooking edge 18 elastically presses against the extending arm 182 and passes through the through hole 22, and then the hooking arm 184 is unfolded, and the end of the hooking arm 184 is The lower surface 23 of the printed circuit board 20 is resisted. In this case, the resisting edge 16 is pressed against the upper surface 21 of the printed circuit board 20, and the convex hull 162 of the 4-clamp 6 is correspondingly received in the recess 24 and The soldering point is resisted by the solder joints of the recesses 24, 31. Thus, the circuit board 20 is held by the hooking arm 184 of the resisting edge 16 and the hooking edge 18. The electromagnetic shield 10 can be stably assembled in printing. The circuit board 2 is mounted on the electronic component 212. [0013] When it is necessary to smash the electromagnetic shield 10, The hooking arm 184 is only required to be pressed, so that the angle between the hooking arm 184 and the extending arm 182 is reduced, and the hooking edge 18 is retracted upwards, so that the hooking edge 18 can be withdrawn from the through hole 22, so that the hook can be conveniently removed. The electromagnetic shielding cover 1〇 is disassembled. [0014] In summary, the printed circuit board device has a simple structure and is convenient to manufacture, and the 099128752 form bat number 1010101 6th page/total 13 page 0992050493-0 201210461 facilitates the electromagnetic shielding cover. A through hole is formed in the printed circuit board by forming a resisting edge and a hooking edge on the electromagnetic shielding cover, and the hooking edge passes through the through hole, so that the end of the hooking arm abuts against the lower surface of the printed circuit board, The resisting edge is pressed against the upper surface of the printed circuit board, and thus the electromagnetic shield is fixed on the printed circuit board. When the electromagnetic shielding cover needs to be removed, simply press the hooking arm to make the hooking edge exit the through hole. BRIEF DESCRIPTION OF THE DRAWINGS [0015] FIG. 1 is an exploded perspective view of a printed circuit board device in accordance with a preferred embodiment of the present invention;
[0016] 圖2係圖1所示之印刷電路板裝置之電磁屏蔽罩之另一視 角不意圖， [0017] 圖3係圖1所示之印刷電路板裝置裝配後之截面示意圖。 【主要元件符號說明】 [0018] 印刷電路板裝置：100 [0019] 電磁屏蔽罩：1 0 [0020] 頂壁：12 [0021] 散熱孔：122 [0022] 侧壁：14 [0023] 抵持緣：16 [0024] 凸包：162 [0025] 勾持緣：18 [0026] 延伸臂：182 [0027] 勾持臂：184 099128752 表單編號A0101 第7頁/共13頁 0992050493-0 201210461 [0028] 印刷電路板：20 [0029] 上表面：21 [0030] 電子元件：212 [0031] 通孔：22 [0032] 下表面：23 [0033] 凹部：24 [0034] 導電電路：2 5 099128752 表單編號A0101 第8頁/共13頁 0992050493-02 is another perspective view of the electromagnetic shield of the printed circuit board device shown in FIG. 1. FIG. 3 is a schematic cross-sectional view showing the printed circuit board device shown in FIG. [Main Component Symbol Description] [0018] Printed Circuit Board Device: 100 [0019] Electromagnetic Shield: 10 [0020] Top Wall: 12 [0021] Cooling Hole: 122 [0022] Sidewall: 14 [0023] Resisting Edge: 16 [0024] Convex hull: 162 [0025] Hooking edge: 18 [0026] Extension arm: 182 [0027] Hook arm: 184 099128752 Form number A0101 Page 7 / Total 13 page 0992050493-0 201210461 [0028 Printed circuit board: 20 [0029] Upper surface: 21 [0030] Electronic component: 212 [0031] Through hole: 22 [0032] Lower surface: 23 [0033] Recess: 24 [0034] Conductive circuit: 2 5 099128752 Form No. A0101 Page 8 of 13 0992050493-0