We find 7 aspects affect when using Pogo Pin
We know that the pogo pin (spring thimble) is a very precise hardware electronic connection device. Due to its special use, in order not to affect the function of the product, some problems must be paid attention to when using it. So what is the connection? Let's take a look at it together.
First of all, an important component of the pogo pin connector is the spring, and the spring has a certain compression/extension range. Therefore, when choosing a pogo pin product, the working stroke and compression of the environment in which it is used are considered, in order to ensure the pogo For the service life and stability of the pin, it is recommended that the compression of the Pogo Pin is generally 2/3 of the total stroke when selecting the model; too little press-in and insufficient positive force will lead to unstable impedance; too much press-in will cause the tube Mouth bruises, leading to pin stuck. In the assembly process, also pay attention to avoid bumping the nozzle, which may cause the pin stuck.
The second point: the contact direction, the contact direction of the pogo pin application directly affects the contact area and contact force of the pogo pin contact, and the contact area and contact forces directly affect the contact resistance, so in the design Be sure to pay attention to the contact directly at the beginning of the selection.
The third point: The battery contact piece or FPC gold finger paired with the pogo pin must not be dirty, oxidized, etc.
A: There must be no residual sealing liquid; the contact surface of the pogo pin pairing must not be dirty, etc.
B: Can there be no other dirt residues? Avoid touching the plastic partition during pogo pin assembly and use.
Fourth point: The pogo pinhead and nozzle should avoid touching the plastic compartment during assembly and use. Avoid touching the plastic compartment during assembly and use the pogo pin. The pogo pin looks like a simple part, but if there is no one With good quality control and perfect manufacturing technology, it is very prone to power failure, the pin stuck, or short durability (lifetime). The process is extremely delicate and complicated, and every process from lathe processing, electroplating, and assembly may bring serious hidden dangers. :
Fifth point: For example, lathe processing should be processed with Japanese automatic lathes, but most factories use cutting machines for processing, and there is no way to guarantee accuracy.
Sixth point: The surface finish of the lathe processing, especially the inner surface finish of the needle tube is very important. Most factories do not have surface roughness testing equipment and do not supervise this important parameter at all.
Seventh point: In terms of the electroplating process, the thickness of the coating has a huge impact on the cost structure. The gold plating is 16u", but most other brands are in 1~2u", which is a big gap. Secondly, the quality of the gold plating in the hole has a great influence on the electrical properties (impedance) and mechanical properties of the pin.