An electromagnetic shielding structure
A technology of electromagnetic shielding structure and shielding layer, which is applied in the direction of magnetic/electric field shielding, electrical components, printed circuit components, etc., can solve the problems of high cost and large volume of electromagnetic shielding structures, reduce the integrated volume of equipment and save costs Effect
Active Publication Date: 2019-03-15
深圳星联天通科技有限公司
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Problems solved by technology
[0004] The main purpose of the present invention is to propose an electromagnetic shielding structure, which aims to solve the problems of high cost and large volume of the electromagnetic shielding structure in the prior art
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[0022] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0023] Such as figure 1 As shown, the first embodiment of the present invention proposes an electromagnetic shielding structure. The electromagnetic shielding structure includes a first circuit board 110 and a second circuit board 120 .
[0024] The first circuit board 110 is provided with a grounded shielding layer 111 , and the second circuit board 120 is provided with a grounded shielding layer 121 . A PCB material layer is reserved between the shielding layer 111 on the first circuit board 110 and the shielding layer 121 on the second circuit board 120, and an air layer is reserved between the first circuit board 110 and the second circuit board 120, and The shielding layer 111 and the shielding layer 121 are electrically connected. Therefore, the shielding layers 111, 121 and the PCB material layer and the air...
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The invention discloses an electromagnetic shielding structure, and belongs to the technical field of electromagnetic compatibility. The electromagnetic shielding structure comprises a first circuit board with a grounding shielding layer, and a second circuit board with a grounding shielding layer. The shielding layers of the first circuit board and the second circuit board are electrically connected, and a PCB material layer is reserved between the shielding layers of the first circuit board and the second circuit board. An air layer is reserved between the first circuit board and the second circuit board, and the air layer, the PCB material layer and shielding layers of the first circuit board and the second circuit board jointly form a shielding cavity. No shield material has to be coated on the electromagnetic shielding structure, and no large shielding cover is used. The electromagnetic shielding structure saves cost, and reduces integration size.
Description
technical field [0001] The invention relates to the technical field of electromagnetic compatibility, in particular to an electromagnetic shielding structure. Background technique [0002] With the wide application of electronic products, electromagnetic environmental pollution is gradually increasing, which makes the requirements for electromagnetic compatibility design higher and higher, and electromagnetic shielding, as one of the main measures of electromagnetic compatibility technology, has become more and more important in many applications. important. When the high-voltage circuit is working, it will radiate electromagnetic waves outward, causing interference to adjacent equipment or circuits, and the role of electromagnetic shielding is to cut off the propagation path of electromagnetic waves, thereby eliminating interference, and this technology will not affect the normal operation of the circuit. [0003] Since the 1960s and 1970s, the worldwide annual conference ...
Claims
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IPC IPC(8): H05K9/00H05K1/02
Inventor 张艳民赵小林古永承王彭杨磊朱克功张则宝
Owner 深圳星联天通科技有限公司