Anti-electromagnetic interference shrapnel

A technology of anti-electromagnetic interference and shrapnel, applied in the direction of electrical components, magnetic field/electric field shielding, etc., can solve the problems of high surface smoothness, insufficient elasticity, poor electromagnetic interference protection effect, etc., to achieve increased specific surface area, increased elasticity, good The effect of the protective effect

CN103153034BActive Publication Date: 2016-04-13HWA 1 PRECISION MACHINERY KUNSHAN

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Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: HWA 1 PRECISION MACHINERY KUNSHAN
Publication Date: 2016-04-13

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Abstract

The invention provides an electromagnetic interference prevention spring plate which comprises a cap body portion, a cap brim portion and elastic rubber, wherein the cap body portion is in a shell-shaped structure, the surface of the structure is provided with weave-shaped creases and a protruding arc face, the cap body portion is hollow, a containing space is arranged inside the cap body portion, the elastic rubber is fixed in the containing space, the top end of the containing space protrudes out of a plane where the edge of the cap body portion is located, and the edge of the cap body portion is externally connected with the cap brim portion. According to the electromagnetic interference prevention spring plate, the elastic rubber is arranged inside the cap body portion, not only is elasticity increased and is connection between adjacent components firm, but also materials can be prevented from producing elastic fatigue and service life is prolonged; and meanwhile, an arc-shaped surface outside the cap body portion is provided with the weave-shaped creases to increase a specific surface area, and therefore the radiation protection area of the electromagnetic interference prevention spring plate is increased. Therefore, the electromagnetic interference prevention spring plate has good protection effects on electromagnetic interference.

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Description

technical field

[0001] The invention relates to the technical field of preventing electromagnetic radiation interference, in particular to an anti-electromagnetic interference shrapnel. Background technique

[0002] Electromagnetic waves are generated when electronic components operate, and these electromagnetic waves will interfere with other electronic components that work normally. This phenomenon is called electromagnetic interference (EMI for short). The principle is that the source of interference transmits electromagnetic signals through space radiation or conductive media coupled into another electrical network. The impact of EMI radiation is not limited to this. If the human body is exposed to electromagnetic radiation pollution for a long time, it will produce adverse symptoms such as fatigue, memory loss, and physiological function decline. To this end, the US Federal Communications Commission has formulated a mandatory specification for Electromagnetic Compatibi...

Claims

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