What is the structure of this small pogo pin connector?

The pogo pin connector is almost a necessary precision electronic component in all electronic products. Because of its changeable shape, light volume, and good performance, it is widely used by the majority of electronic manufacturers. So what is the structure of this small pogo pin connector?
Pogo pin thimble connector main components include needle shaft, spring, and needle tube. The pogo pin connector uses this design, which can save space to a large extent, have a long service life, and the distance between points is small.
The needle barrel is an important part of the pogo pin connector. The needle shaft is mainly divided into two types: back drilling and oblique cutting. Designed according to different requirements. Because the volume of the back drilling is light and small, it is an electronic product that requires a small size connector. The back-drilled needle shaft can meet the manufacturer's requirements for springs. Even if the spring exceeds the length of the needle tube, the needle shaft can be made hollow, thereby giving the spring more space. The oblique cutting edge is mainly to ensure that the needle shaft can make greater contact with the needle tube, thereby ensuring a stable low connection resistance.
