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Notes on the use of pogo pin

time:2020-11-18 Views:203

  The pogo pin is a very precise hardware electronic connection device. Because of its particularity, in order not to affect the use of the product, the following points must be paid attention to when applying:

Notes on the use of pogo pin(图1)

  The first point: the most important component of the pogopin connector is the spring, and the spring has a certain compression/extension range, so when using the pogo pin product, you must first consider the working stroke and compression of its use environment. In order to ensure the service life and stability of the pogo pin, it is best to compress the pogo pin to 2/3 of the total stroke during the selection; too little press-in and insufficient positive force will cause unstable impedance; too much press-in If too much, it will damage the nozzle and cause pin stuck. When assembling, pay attention to prevent damage to the nozzle and cause pin stuck.

  The second point: contact direction; the contact direction of the pogo pin when used has a direct impact on the contact area and contact force of the pogo pin contact, and the contact area and contact force will directly affect the contact resistance, so At the beginning of design and selection, the contact direction must be paid attention to.

  The third point: the battery contacts or FPC golden fingers paired with the pogo pin must not be dirty or oxidized.

  A: There must be no residual sealing liquid; the contact surface of the pogo pin pair must not be dirty, etc.

  B: No other dirt remains. The pogo pin should be prevented from touching the plastic partition when assembling and using it.

  The fourth point: The pogo pin head and nozzle should be prevented from touching the plastic partition during assembly and use. The pogo pin looks like a simple part, but if there is no good quality control and perfect manufacturing process level, it is particularly prone to power failure and pin stuck, or short durability (lifetime). Its craftsmanship is particularly delicate and complicated, and every link from lathe processing, electroplating, and assembly may have serious hidden dangers.

  1. For example, lathe processing should be processed with Japanese automatic lathes, but most factories use cutting machines for processing, and the accuracy is difficult to guarantee.

  2. The surface finish of the lathe processing, especially the surface finish of the needle tube is very critical. Most factories do not have surface roughness testing equipment and basically do not control this important parameter.

  In terms of electroplating process, the thickness of the coating has a huge impact on the cost composition. 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.