导电垫片

导电垫片是一种工程组件，设计用于在屏蔽外壳的配合面之间建立连续导电路径，通常用于电子和电信设备。它兼具双重功能：通过保持接缝和接头处的电气连续性来防止电磁干扰（EMI）泄漏，同时提供防尘、防潮及其他污染物的环境密封。这些垫片对于敏感电子系统的电磁兼容性（EMC）合规性至关重要。

导电垫片通过在外壳的配合金属表面之间建立低阻抗电气接触来工作。当在表面之间压缩时，垫片材料内的导电元件会变形以填充微观间隙和不规则性，形成多个并联导电路径。这形成法拉第笼效应，将电磁辐射限制在外壳内，并防止外部EMI进入。压缩力确保在热膨胀、振动和机械应力下保持连续接触。

Conductive gaskets work by establishing low-impedance electrical contact between mating metal surfaces of an enclosure. When compressed between surfaces, the conductive elements within the gasket material deform to fill microscopic gaps and irregularities, creating multiple parallel conductive paths. This forms a Faraday cage effect that contains electromagnetic emissions within the enclosure and prevents external EMI from entering. The compression force ensures continuous contact despite thermal expansion, vibration, and mechanical stress.