01
As machines become more and more deeply involved in our production and life, the convenience, efficiency and safety brought by mechanical equipment have been widely recognized. All kinds of machinery that are heavily relied on are more sophisticated, intelligent and integrated. Once a problem occurs, it is difficult or expensive to repair.
In the circuit, important and fragile electronic connectors are often susceptible to various infringements, which reduces the performance of the connectors. Among them, all kinds of stains are the most difficult to prevent. To avoid this problem as much as possible, we must first understand how stains are generated.
02
Generally speaking, stains are divided into native stains and invading stains. Native stains are the reactants of the connector body due to corrosion, forming stains. Invasive stains refer to stains caused by external invasion such as dust, salt spray, and fibers.
Corrosion is everywhere. Oxidation occurs when the metal of the connector contacts combines with atmospheric oxygen. The generation of oxidation reactants is a kind of corrosion to metals. Such as the oxidation of iron.
If the connector is poorly sealed and has insufficient protection, water or other corrosive liquids will easily sneak into the connector from the gap. In a humid environment, water as an electrolyte will make the electrons in the metal more active, and the ions formed by electron transfer will slowly leach out and dissolve in the metal to form electrical corrosion. If lubricant, coolant, disinfectant, salt spray, etc. enter, corrosion will also occur.
The connector is actually the connection between the pin contact and the hole contact. Corrosion destroys contact.
Similarly, although it is difficult to see with the naked eye, dust and fibers are already "monsters" for atoms. These impurities are suspended in the air, and once they enter the connector, they easily affect the contact between the contact pin and the contact hole, resulting in a sharp reduction in the effective contact surface. Causes various problems.
03
Whether it's life-threatening medical machinery, mining farm machinery with huge environmental pressure, or sophisticated consumer electronics. These small stains will not only reduce the performance of the connector, and affect the transmission. It is more likely to cause problems such as connector heating, joint fire, leakage, etc., resulting in equipment damage.
To avoid such problems, you can start from the source of purchase, or you can pay attention to it in daily maintenance.
If stains are found on the connector during daily work, deal with it as soon as possible. For example, use compressed air to blow the dirt, wipe the stain with alcohol and cotton swabs, polish the corroded area with fine sandpaper... After the treatment is completed, a special contact cleaner needs to be sprayed for protection. Of course, you can also seek professional electronic cleaning and maintenance companies for maintenance.
When purchasing, facing countless types of connectors, you need to understand some tricks if you want to achieve the required protection effect.
*The use of passivated stainless steel for the shell can have better corrosion resistance;
*Smooth surface can limit the stay of pollutants;
* Miniaturized compact structure can reduce exposure risk;
*The tightness of threaded connection is better than plug-in connection;
*Different materials of contact pins and the selection of coating materials can bring different protection characteristics
04
The impact of dirt on electronic connectors cannot be underestimated. In essence, it is a kind of early warning visible to the naked eye. If it is not paid attention to, it will quickly develop from reducing the current to an intermittent fault, and finally intensifying and directly causing a permanent fault. Under the premise of fully considering the actual application requirements, connectors with excellent protection performance should be selected as far as possible, which can greatly reduce the loss caused by frequent maintenance shutdowns in the future and avoid unnecessary troubles.
If you are not clear about the specific connector requirements, you can choose to refer to the opinions of the connector manufacturer.
TXGA has been focusing on connector development and production for many years, and has rich experience in the production of high-protection standard connectors. As long as you tell us the environmental conditions to which our products are ultimately applied, we provide one-stop customized services. Use professional engineering analysis techniques and simulation software to design and open molds to ensure product functions meet requirements.
Professional research and development, precision manufacturing, fast delivery. TXGA looks forward to working with you.
