结合电子电路系统对于壳体功能的不同需求，分别讨论了壳体在电波传播、电磁屏蔽、电路失效、电子设备物流包装这4方面的应用；分析概括了壳体孔径、电路板孔径对于电路系统性能的作用和影响，论述了传感壳体集成技术的应用实践；最后总结了壳体结构设计对于电子电路系统的价值和进一步的研究方向。

The applications of shell in radio wave propagation, electromagnetic shielding, circuit malfunction, and logistic packaging of electronic equipment were discussed based on functional requirements of electronic system. The function and influence of shell aperture and printed circuit board hole for the performance of circuit system was analyzed and generalized. Integration technology of sensing shell was discussed. The function of shell structure and the future research direction was put forward.