Anti-electromagnetic-interference circuit board

An anti-electromagnetic interference and circuit board technology, which is applied to printed circuit components, electrical components, magnetic field/electric field shielding, etc., can solve the problems of increasing circuit board stacking, increasing costs, and unsatisfactory effects, so as to reduce electromagnetic interference, Mutual interference reduction effect

CN103415136AActive Publication Date: 2013-11-27GUANGDONG VTRON TECH CO LTD

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Applications(China)
Current Assignee / Owner: GUANGDONG VTRON TECH CO LTD
Publication Date: 2013-11-27

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Abstract

The invention relates to the field of circuit boards, in particular to an anti-electromagnetic-interference circuit board. The anti-electromagnetic-interference circuit board comprises a circuit board body provided with an inductor. The area, where the inductor is installed, of the circuit board body is provided with a mechanical hole and / or an arrangement-forbidding area. The power source plane, the ground plane and interconnecting wires in the circuit board body all keep away from the mechanical hole and / or the arrangement-forbidding area. The inductor is a main source of the electromagnetic interference problem in the circuit board body. According to the anti-electromagnetic-interference circuit board, the area, where the inductor is installed, of the circuit board body is provided with the mechanical hole and / or the arrangement-forbidding area, the power source plane and the ground plane in the circuit board body and the interconnecting wires among various parts in the circuit board body all keep away from the mechanical hole and / or the arrangement-forbidding area, therefore, mutual interference between the electromagnetic field generated by the inductor and the electromagnetic fields generated by the areas, intersected with the area where the inductor is installed, of the power source plane, the ground plane and / or the interconnecting wires is avoided, the electromagnetic interference in the circuit board body can be effectively reduced, and the signal quality of the power source plane, the ground plane and the interconnecting wires among the various parts in the circuit board body is improved.

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Description

technical field

[0001] The present invention relates to the field of circuit boards, more specifically, to a circuit board resistant to electromagnetic interference. Background technique

[0002] As the electronic components and traces in the circuit board become denser, the electromagnetic interference in the circuit board becomes very serious. In order to isolate the electromagnetic field, the existing technical solution is that the main circuit board is vertically plugged on the terminal interface board, and a flat transformer with low magnetic flux leakage and low disturbance is used as the signal isolation component. The main circuit board includes signal There are three parts: input, signal output and power supply module. The three parts are isolated by moats, and the moats are uninterrupted until they reach the terminal interface board. In the practical application of this method, the three parts on the main circuit board need to be provided with moats, and the size ...

Claims

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