Shielding structure of circuit board and electronic device with shielding structure
A shielding structure and technology for electronic devices, applied in circuit devices, magnetic/electric field shielding, printed circuits, etc., can solve the problems of escape and cannot be completely isolated in the retaining wall assembly, and achieve the effect of reducing the impact
Inactive Publication Date: 2020-03-17
SHENXUN COMP KUNSHAN +1
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Problems solved by technology
[0004] However, due to the design limitations of the casing such as heat pipes or output / input ports, the metal retaining wall that passes through these designs must be broken to form a breach, thereby causing the noise to escape from the breach and cannot be detected. Completely isolate the absence within the retaining wall assembly
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[0019] The detailed description and technical content of the present invention are described as follows in conjunction with the drawings. However, the drawings are only for reference and description, and are not intended to limit the present invention.
[0020] Such as figure 1 with figure 2 As shown, the present invention provides a shielding structure of a circuit board and an electronic device having the structure. The electronic device includes a casing 900, a circuit board 800 and a shielding structure 100. Among them, the inner surface of the metal housing 900 has many metal retaining walls 9; both sides (or either side) of the circuit board 800 are provided with many conductive retaining walls 8, and the conductive retaining walls 8 are arranged on one side of the circuit board 800. The walls 8 (not shown in the figure) correspond to the metal retaining walls 9, so that when the circuit board 800 is installed in the casing 900, the conductive retaining walls 8 on one side...
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The invention discloses a shielding structure of a circuit board and an electronic device with the shielding structure. The electronic device comprises a casing, the circuit board and the shielding structure, and the shielding structure comprises a shielding film and a grounding conducting piece electrically configured on the circuit board; the shielding film comprises two insulating layers and ametal layer clamped between the two insulating layers to form a sandwich structure; one of the insulating layers is attached to the circuit board and is provided with an opening, and the metal layer is exposed through the opening to form a conductive connection part, so that the shielding film can be electrically connected to the grounding conductive connection piece through the exposed conductiveconnection part to be grounded. A complete noise shielding effect and an effective noise grounding effect can be achieved.
Description
【Technical Field】 [0001] The present invention is related to noise shielding design, in particular to a shielding structure of a circuit board and an electronic device with the structure. 【Background technique】 [0002] Electronic devices are equipped with radio frequency components for wireless transmission. However, since the circuit boards in electronic devices have many signals of different frequencies, and these signals are noises to radio frequency components, they must be isolated and grounded. [0003] The existing isolation structure includes a metal retaining wall protruding from the metal casing and a guiding retaining wall protruding from the circuit board and corresponding to the metal retaining wall. The circuit board is arranged in the metal casing, so that the metal retaining wall and the guiding retaining wall are connected and connected to each other to form a retaining wall assembly. The retaining wall component encloses the circuit board frame into several bloc...
Claims
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IPC IPC(8): H05K1/02H05K9/00
CPCH05K1/0218H05K1/0224
Inventor 王民友吴启荣
Owner SHENXUN COMP KUNSHAN