The Cold-pressed Pin May Become Loose Inside The Terminal Block After Vibration.

During manufacturing, contact socket crimp achieves conductive connection through metal plastic deformation. However, under continuous vibration loads, its contact with the internal contacts of the terminal block may change. This can cause micro-displacement or even loosening of crimp contact female along the insertion direction, affecting contact integrity.

The impact of vibration on the crimp contact male connection is particularly significant in high-vibration scenarios such as automotive wiring harnesses. High-frequency vibration subjectes the terminals and their associated components to repeated stress cycles. This dynamic load can potentially cause relative movement of the connecting elements within the terminal block, especially when the holding force is already at a marginal level.

Besides the vibration frequency itself, the vibration direction, amplitude, and component geometry also affect the behavior of crimp socket contact within the terminal block. Compared to manual crimping, automated crimping tends to be more standardized in terms of geometric consistency and deformation control, but the vibration environment can still induce adverse changes in micro-interface slippage. Furthermore, the overall design of the connection system needs to consider the long-term effects of dynamic loads on the conductive path and mechanical interface.