Is it necessary to protect the waterproof connector from dust?

The connector literally means the connecting unit between various electronic components. It is mainly used as a circuit board, a single chip box between the circuit board and the circuit board, for the connection and transmission of electronic signals.

But what I want to introduce is not the meaning of the above explanation, but a kind of industrial-specific equipment that can connect two different circuits and act as a bridge to exchange current or signals between the two. It is also a new product developed by science and technology. The waterproof connector is an industrial connector used outdoors, which can provide a safe and reliable connection.

Marine traffic or electricity will inevitably come into contact with water. Even if it is not placed directly in the water, the sea breeze will bring moist air into any corner. In addition, seawater itself has strong alkalinity and corrosiveness, and the requirements for connectors are even higher. It is not only necessary to ensure that the shell is waterproof, dustproof and corrosion-resistant, but also that the internal connection plug is tight enough. In the past, most of them were imported and purchased. They are not only expensive, but also take some time for transportation, which is not suitable for the functions that the product urgently needs to use.

Industrial connectors are now produced in China. They are planned on the basis of industrial connectors to improve the waterproof function of the product. It can be safely used outdoors without importing.

In terms of waterproofing, we have very high requirements for the sealability of the product. In the plan, a sealing rubber gasket was installed between the two mounting plates. The secondary vulcanization of the rubber is used to increase the friction, so that the plug becomes a needle and a sealing gasket, the flange seat and the sealing gasket reach the intention of sealing. It can also achieve an outstanding sealing effect. Rubber also has an insulating effect and can effectively prevent electric shocks caused by internal current splashing. The safety function of the product has been well improved.

However, although the function can meet very good requirements, it also has "natural enemies"-dust particles. These dusts are difficult to remove. There are dust particles in the atmosphere. We can only reduce the generation of dust particles, and reduce or reduce the touch between the touch device and the dust particles. Common problems are:

The touch surface between the electrical shock of the connector is easily polluted by the dust in the atmosphere, and the dust particles are difficult to clean and easy to adhere to the electric shock. There may be the possibility of embedding, and then cause the circuit to malfunction.

The upper limit of the risk limit of dust particles is Ф38μm. When the shape is irregular, the upper limit of risk will increase.

The hardness of the quartz contained in the dust particles is much greater than the hardness of the connector metal. Otherwise, the metal part of the connector will be damaged. If the contacts are damaged, it is easy to cause poor connection of the connector.

The smallest particle size of the risk is closely related to the metal material, the working pressure and the shape of the contact surface of the connector contact. Usually tin phosphor bronze is used as the foundation, and then nickel and gold are plated on the surface.

However, because the industrial connector can now overcome the difficulty of waterproofing, it can also improve the function of the industrial connector, so it can be used normally in a harsher environment. Unless it is operated in a vacuum, the dust is also difficult to remove. Every time it is pierced and pulled out, the contacts will touch the dust in the air. However, this problem can still be overcome, and there is no guarantee that there is no dust at all, and it can still be ensured that no foreign matter enters the waterproof connector during use. After all, the particle size of water is much smaller than the particle size of dust, which makes the waterproof connector can be used outdoors, and it is also the product that selects the most industrial connectors outdoors. In terms of waterproofing, I have great confidence to ensure that waterproof connectors can be used normally and safely outdoors.