Ordinary pogo pin is mainly composed of syringe, piston and spring. The material of the piston head and the barrel is brass. Although it has good conductivity, it has no elasticity. The spring material of stainless steel or piano strings is characterized by poor conductivity and high resistance. Generally, the current path of the ordinary pogo pin is through the friction between the syringe and the piston to achieve current conduction, and the friction between the syringe and the piston is related to the spring force. The greater the elastic force, the greater the friction and the flow capacity. The stronger. In addition, the impedance of the ordinary pogo pin is inversely proportional to the elasticity, that is, the greater the elasticity, the greater the friction, and the smaller the impedance, the more stable and reliable the pogo pin, and the greater the resistance caused by friction, the greater the resistance to the pogo pin The performance impact is also great, and its use on the battery connector will cause the impedance to be too large and unstable, instantaneously disconnected, and disconnected. Let’s take a look at the difference between ordinary pogo pin and claw spring pogo pin with Tyco Hanze.
The flow capacity of the aviation plug connector is mainly determined by the diameter of the needle: the larger the diameter, the stronger the flow capacity. The flow capacity of the claw spring pogo pin is also like this, the current range through it is 2A~20A . Therefore, the claw spring pogo pin can fully meet the current flow requirements of 5A~8A mobile phone battery connectors. In terms of structure, the size of the claw spring pogo pin is similar to that of the ordinary pogo pin, but the diameter of the claw spring pogo pin exposed by the spring can be much smaller than that of the ordinary pogo pin. Therefore, the size of the claw spring type pogo pin battery connector can also be the same as the ordinary pogo pin battery connection machine, and the claw spring type pogo pin with the spring exposed can be made into a thinner battery connector.
Specifically, the difference between the claw spring type pogo pin connector and the ordinary pogo pin connector is in the following aspects:
The high elastic claw spring of the former can ensure the reliability of the connection under vibration and shock environment, and the hard connection of the syringe and the piston in the latter has the risk of power failure in the same situation.
The impedance of the former is stable and the resistance value is low, while the impedance of the latter changes with the elastic force, and the resistance value is relatively high; the direct friction between the piston and the barrel of the former has nothing to do with the elastic force of the spring, while the friction of the piston and the barrel of the latter is positively related to the spring.
The oblique pressure of the former is absorbed by the plastic case when the battery is installed, and has no effect on the pogo pin. The oblique pressure of the latter is absorbed by the constriction of the syringe when the electric hammer is installed, resulting in deformation and affecting the performance of the pogo pin.
All strokes of the former are reliable working strokes, while only the second half of the strokes of the latter are reliable.