How to guarantee the performance of spring-loaded Pogo Pin?
The spring thimble has extremely important value and status. It is also an indispensable part of electronic products. For the spring thimble, if you want to give full play to its advantages and performance, you must ensure that its quality is high-quality And the production process of the connector is "zero error", in other words, it is necessary to protect the performance of the spring thimble from damage during the production process. So, how to ensure the performance of pogo pins in production? Next, professional pogo pin manufacturers will explain the specific performance guarantee methods for everyone, and then we will take a look together.
First, detect the spring thimble
When the molten plastic cannot completely fill the fetal membrane, there will be some "leakage holes", which are usually something that needs to be tested in the injection molding stage. The problem can be found by detecting the spring thimble and its performance can be adjusted. To ensure that there will be no problems. Second, ensure the quality of pogo pins
Second, to ensure the quality of pogo pins
As everyone knows, the finished product assembly is the final stage of the production and manufacture of the spring thimble connector, and at this stage, we usually use electroplating to combine the pins individually, and the purpose is to ensure the quality of the spring thimble.
Third, reasonable control
Reasonable control is an effective way to supervise production. In actual operation, this method also greatly guarantees the integrity of the product's performance and brings a good experience to consumers. I believe it is also a kind of Strategies that is worth trying and applying. In addition, you can find professional spring thimble manufacturers to learn more about spring thimble or buy spring thimble.
In summary, in the production process, if you want to ensure the performance of the spring thimble, you must follow the relevant methods described in the article. These methods are extremely practical and are also indispensable methods to ensure the performance of the spring thimble, so you must master and fully Using the methods introduced in the text is crucial.
The EMC effect of the connector is introduced in detail
The connector is an inconspicuous device in the world, a device that is not listed as a key control device by the host unit, an indispensable device in all electronic and electrical products, but its electromagnetic compatibility (referred to as EMC) for the production equipment or system The influence of) cannot be ignored.
When the contact couple of the connector was selected, the fatigue effect under the vibration state was not considered. The continuous plugging and unplugging during the product development and trial production process, the number of times was too large, which caused the contact part to change abnormally. Amplify the abnormal change of contact impedance in the vibration state, resulting in the signal waveform variation (after canceling the vibration, the waveform returns to normal). Only need to replace a new connector, the waveform variation phenomenon under the vibration state will disappear.
(A) The RE test exceeds the standard, you may only need to polish the installation part of the aviation plug on the panel with sandpaper to solve the problem, or replace the gasket shown in the right picture below to solve the problem;
(B) The common mode current traverses the entire PCB board and pollutes the entire PCB board. You may only need to place the connector on one side as shown in the figure below to solve the problem;
(C) If the via tail post (see the figure below) for the connector installation is too long, the antenna effect will be obvious, and the problem can be solved by changing the signal layer involved;
(D) The high-order harmonics on the transmission line are too thick and the noise is too strong. To reduce the radiated noise field strength, parallel capacitors can only be installed at the front end of the connector as shown in the figure below, and so on.
The overall structure of the connector, part structure and material selection, contact parts, cantilever, barbs, solder feet and material strips and electroplating, type selection, installation method, and installation location, etc., all directly affect the reliability of the product. Affect the test result of the product passing the EMC certification test.
A good connector design and good use of the connector can greatly improve the EMC performance of the product.
In addition to the analysis of the connector's contact pair selection, industry experts also conducted elaborate discussions around the following topics:
(1) On what technology platform, in which frequency range, and at how many degrees of temperature, what type of connector should be selected? What kind of connector cantilever or needle puncture is deformed?
(2) Is it necessary to evaluate the contact impedance and characteristic impedance only for high-speed or high-frequency connectors?
(3) Will differential mode and common mode noise be generated on the connector?
(4) How much dB is the loss of the original signal after the connector is connected?
(5) How to eliminate the drift and jitter that occurs when the signal passes through the connector?
(6) How much dB of shielding effectiveness can be lost from the installation part of the connector?
(7) How much electromagnetic energy can be conducted or radiated from the port?
(8) How to prevent the current on the connector pins from being accidentally shunted?
(9) What factors affect the EMC performance of the connector?
(10) How to measure the EMC parameters of board-level connectors?
(11) How to use connectors to protect SI and prevent ESD and Surge problems from occurring?
(12) How to use connectors to deal with EMI problems and repair the EMC performance of products?