Mechanical Considerations For The Reliability Of Push-button Terminal Connectors In Industrial Wiring.

The push wire terminal block terminal contains an internal spring sheet structure. When a wire is inserted into the terminal hole, the spring sheet deforms due to the insertion force. The spring sheet then returns to its elasticity, firmly clamping the wire and achieving both electrical contact and mechanical clamping between the wire and the terminal.

Properly designing the spring sheet's geometry, material elasticity, and contact area is crucial for maintaining the wire clamping force. A suitable elastic force distribution allows the terminal to maintain stable contact after repeated insertions and removals. Compared to some low-cost terminals on the market, high-quality push in terminal block wire connector terminals often use durable spring metals that maintain reliable connections under mechanical pressure.

Especially under vibration or shock environments, the elastic recovery characteristics of the spring structure and the design of the contact surface determine the mechanical durability of the push in wire terminal block terminal. If the spring sheet fatigues or loses its elasticity, the clamping force will decrease, potentially causing unstable contact or even detachment.

Therefore, during development and production, the engineering team should conduct various mechanical load tests on the push fit terminal block connector terminal, including insertion/removal cycle tests, vibration tests, and long-term load tests. The data obtained from these tests is used to optimize the spring design and material selection for the push connector block terminal.