There are many types of guide pins for terminal blocks, such as PIN pins and four guidelines. The relative pulling force of the inductive guide pins of terminal series products such as electronics and automobiles will be lower, and sometimes there will be insufficient tension for a long time. Know what caused it.
We need to analyze the material and mechanical life of the inductance guide pin of the terminal.
You can click to analyze the different factors of the tensile force of the inductance guide pin of the terminal:
1. The I-shape depends on the glue to meet the tensile requirements, and the general skeleton is based on the stress of the molding compound. In comparison, the reliability of the glue is worse. If there is a requirement, you can use molded plastic as the base, and insert the pin on the base to improve the effect.
2. In addition, too little glue will cause the pins of the inductance guide pins of the terminal to fall off, and the poor adhesion of the glue will also make the pins not firmly bonded.
3. The glue that adheres to the inductive guide pin of the terminal after soldering is subject to aging due to high temperature, and the viscosity becomes poor, which will lead to insufficient pull of the guide pin, and even cause the guide pin to loose and fall off during the turnaround. Generally, the amount of dispensing is too small, or Caused by poor temperature resistance of glue.
4. The greater the atomic weight of the metal, the softer the metal will be. High purity copper is a very soft metal material. The hardness of the steel needle is not in the same grade! However, its conductivity is the opposite! The greater the atomic weight, the better the conductivity!
5. Good glue can increase the stability of the inductive guide pin of the terminal, even if the guide pin breaks the fixed position, it will not be loose.
The physical factor that the relative pulling force of the terminal inductance guide pin will be low can basically be summarized by the above 5 points. The use effect of the terminal is a crucial position for the use of the guide pin, so to strengthen its performance, we should try to avoid applying the above points. Unsuitable way.
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