Method for protecting electromagnetism of circuit board as well as circuit board assembly

Abstract

The present invention provides a protective method of electromagnetic interference of a circuit board, including following steps: providing a circuit board, the circuit board includes a circuit board substrate printing with circuit, at least one ground interface which is electrically connected with the circuit of the circuit board substrate; extending at least one conductive piece from the edge of the circuit board substrate, which is electrically connected with the ground interface of the circuit board; providing a metal protection device, the circuit board and the conductive piece are contained in the metal protection device, and the conductive piece is electrically connected with the metal protection device. The protective method of electromagnetic interference is electrically connected with the metal protection device by the conductive piece which is electrically connected with the ground interface of the circuit, since the conductive piece is prepared when the circuit board is set and prepared, the manual power is saved. At the same time, the conductive piece tightly adhibits the electromagnetic protection cover because of the pliability and the elasticity of the conductive piece, avoiding bad contact. The invention also provides a circuit board component preventing electromagnetic interference completed by the protective method of electromagnetic interference.

Description

technical field [0001] The invention relates to a circuit board protection method, in particular to a circuit board electromagnetic interference protection method and a circuit board assembly applied to digital cameras and other electronic devices. Background technique [0002] With the continuous development and progress of electronic technology, all kinds of electronic products are developing towards digitalization. Moreover, in order to meet the needs of portability and practicability, the design specifications of electronic products tend to be light, thin, short, multi-functional, and fast-processing, so that the manufactured products can be easier to carry; and more in line with modern life need. Especially after the popularity of multimedia computers, powerful computing capabilities can easily process various digital data such as audio effects, images, and graphics. As a result, peripheral devices related to images have also been widely developed and used. For examp...

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Problems solved by technology

However, this method often consumes more materials, increases cost and manpower, and due to the tolerance size of the conductive foam 4 and the ground wire interface 2, it will cause poor contact and affect the electromagnetic shielding effect.

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