Shielding device

Mask structure of electronic device

The present invention relates to a mask structure of an electronic device, and more particularly to a mask structure of a detachable electronic device.

Electromagnetic interference is one of the common problems in electronic equipment. Usually, the circuit generates electromagnetic waves in the application, which affects the signal transmission and working performance of other electronic devices. In order to reduce the degree of interference, a cover made of a conductive material may be disposed around the electronic device, and the cover can eliminate static electricity accumulation and absorb electromagnetic fields, thereby realizing the function of the electromagnetic mask. Related art can be found in U.S. Patent Nos. 5,400,949, 5,365,410 and 5,742,488. However, the conventional mask structures are usually integrally soldered to the circuit board, and if the electronic components or electronic devices covered by the mask member need to be replaced or repaired, the masking operation is required to remove the mask. The process of the component is extremely cumbersome and is not convenient for operation.

In order to solve the above problems, the mask structure is also divided into two separate members. The related patents can be referred to the Chinese Patent Publication No. CN 2514579Y published on October 2, 2002, the mask structure of the electronic device disclosed in the patent includes a lower frame and an upper cover, the lower frame is disposed on the circuit board to frame the electronic component to be covered, the lower frame includes a plurality of side walls, and the plurality of through holes are disposed on the side wall, the upper cover includes a top plate and the top side of the top plate a vertically disposed tab, wherein the tab is provided with a plurality of protrusions. When the upper cover is assembled on the lower frame, the through hole of the lower frame and the corresponding position on the upper cover tab are engaged with each other to hold the upper cover in the lower frame Physically. In this way, when the upper cover is taken out, since the protrusion on the upper cover tab closely matches the through hole of the lower frame, it is disadvantageous for disassembly.

The purpose of the present invention is to provide a mask structure for an electronic device that is easy to repair and disassemble.

In order to achieve the foregoing object, the mask structure of the electronic device of the present invention comprises a frame body and a cover body fastened on the frame body, wherein the frame body is provided with a side wall, and the cover body comprises an upper plate and is bent from the upper plate. The supporting side of the frame body and the holding wing are respectively provided with a matching body and a matching hole, and the side wall of the frame or the holding wing is provided with a corresponding matching of the supporting wing or the side wall of the frame body. The interference block, the interference block is in contact with the side wall or the holding wing to ensure a gap between the cover body and the side wall of the frame.

Compared with the prior art, the interference block is provided on the plurality of card holding wings of the present invention. When the cover body is taken out, the cover body and the side wall of the frame body have a certain gap due to the contact fit of the interference block and the side wall, thereby making the cover body easy. Remove from the frame.

Referring to the first to fifth figures, the mask structure 1 of the electronic device of the present invention comprises a frame body 10 and a cover body 11 fastened on the frame body 10, wherein the frame body 10 and the cover body 11 are both The frame body 10 includes a top wall 100 and a plurality of side walls 101 vertically bent from the side edges of the top wall 100. The top wall 100 is provided with a plurality of first openings 103 located adjacent to the first openings 103. An intermediate wall 104 is formed between the two openings 103. The first opening 103 and the intermediate wall 104 and the side wall 101 are enclosed to form an electronic device that is mounted on a circuit board (not shown). In the space shown in the figure, the side wall 101 is provided with a plurality of through holes 102; the cover 11 includes an upper plate 110 combined with the frame 10 and a plurality of discrete cards vertically bent from the side edges of the upper plate 110. Holding the wing 111, the holding wing 111 corresponds to the side wall 101 of the frame body 10. The upper plate 110 is provided with a second opening 115 and a plurality of through holes 112. The inside of the plurality of holding wings 111 is provided with a hemispherical interference block 113 and The hemispherical button body 114 is matched with the hole 102, wherein the size of the interference block 113 is smaller than the size of the button body 114.

When the mask structure 1 of the electronic device is assembled on the circuit board, the frame 10 is first assembled on the periphery of the electronic device to be covered on the circuit board, and connected to the ground path on the circuit board, and then The cover body 11 is assembled to the frame body 10 from above the frame body 10, and the buckle body 114 of the latching wing 111 is tightly engaged with the matching hole 102 of the side wall 101 of the frame body 10, and the cover body 11 is fixed on the frame body 10. The masking function of the electronic device in the frame 10 is realized. At the same time, the interference block 113 and the side wall 101 are in contact with each other to ensure a certain gap between the inner side of the cover 11 and the outer side of the side wall 101 of the frame 10; The arc-shaped design facilitates the tightness of the card and the card.

When the cover 11 is removed, a certain gap is formed between the cover 11 and the side wall 101 of the frame 10 due to the contact fit between the interference block 113 and the side wall 101, so that the button body 114 slides on the side wall 101 of the frame 10, thereby The cover 11 is easily detached from the frame 10.

It is to be noted that, in the above embodiment, the hemispherical interference block 113 may be disposed on the side wall 101 of the frame body 10, and the buckle body 114 that is engaged with the matching hole 102 of the side wall 101 is disposed on the holding wing 111 of the cover body 11. The cover body 11 is assembled from the upper part of the frame body 10 to the frame body 10, and the button body 114 of the holding wing 111 is engaged with the matching hole 102 of the side wall 101 of the frame body 10; meanwhile, the interference block 113 of the side wall 101 corresponds to The contact between the clamping wings 111 ensures the gap between the cover 11 and the side wall 101 of the frame 10, and the purpose of the present invention can also be achieved.

Moreover, in the above embodiment, the button body 114 may be disposed on the side wall 101 of the frame body 10, and the recessed matching hole 102 may be disposed on the holding wing 111 of the cover body 11, and hemispherical interference may be disposed on the side wall 101 of the frame body 10. When the mask structure 1 of the electronic device is assembled on the circuit board, the frame 10 is first assembled on the periphery of the electronic device to be shielded on the circuit board, and is connected to the ground path on the circuit board. Then, the cover body 11 is assembled from the upper portion of the frame body 10 to the frame body 10, and is engaged with the button body 114 of the side wall 101 of the frame body 10 through the engaging hole 102 of the holding wing 111 to hold the cover body 11 in the frame body. At the same time, at the same time, the interference block 113 of the side wall 101 is in contact with the corresponding holding wing 111 to ensure a gap between the cover 11 and the side wall 101 of the frame 10, so that the cover 11 can be easily detached from the frame 10.

In addition, in the above embodiment, the button body 114 may be disposed on the side wall 101 of the frame body 10. The plurality of card holding wings 111 are provided with a hemispherical interference block 113 and a matching hole 102 matched with the hemispherical button body 114. The engaging hole 102 of the 111 is engaged with the button body 114 of the side wall 101 of the frame body 10, and the cover body 11 is fixed on the frame body 10. At the same time, the interference block 113 of the holding wing 111 is in contact with the corresponding side wall 101 to ensure the cover body 11 The gap with the side wall 101 of the frame 10 can also achieve the purpose of the present creation.

In summary, this creation has indeed met the requirements of the new patent, and filed a patent application in accordance with the law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention cannot be limited thereby. Equivalent modifications or variations made by those of ordinary skill in the art to the spirit of the present invention are still covered by the appended claims.

<p>Mask construction of electronic devices. . . 1</p><p>framework. . . 10</p><p>Top wall. . . 100</p><p>Side wall. . . 101</p><p>Matching holes. . . 102</p><p>First opening. . . 103</p><p>Middle wall. . . 104</p><p>Cover. . . 11</p><p>On board. . . 110</p><p>Hold the wings. . . 111</p><p>Through hole. . . 112</p><p>Interference block. . . 113</p><p>Button body. . . 114</p><p>Second opening. . . 115</p>

The first picture is a three-dimensional combination of the creation.

The second figure is another angle view of the first figure.

The third picture is a three-dimensional exploded view of the creation.

The fourth figure is a partial cross-sectional view of the engaging wing body and the side wall matching hole in the first figure in the IV-IV direction.

The fifth figure is a partial cross-sectional view of the interference block and the side wall in the V-V direction in the first figure.