In driving of car, various parts of car must work, and various parts must be closely coordinated, and in cooperation of various parts in car, car connector plays a very important role. Whether it is a traditional car or a new energy car, in automotive industry, connectors have always been valued by engineers. In some traffic accident analysis, people found that many traffic accidents are caused by connector failure. Design requirements of automotive connectors are generally divided into following points:
1. Stable and reliable connector contact material;
2. Positive force is stable;
3. Voltage and current of connector connection circuit are stable;
4. Temperature requirements are within specified range, including surrounding temperature and its own temperature rise;
5. Better robustness, automotive connectors must be able to work reliably under harsh conditions;
6. It must be same as connector used for high-speed and long-distance communication computers;
7. Connector insertion force: 20.5kg or less;
8. Connector retention: 2.5kg or more;
9. Temperature adaptability: -40~120℃.
From purpose of use of automobile connectors, in order to ensure that car can run better, we can divide reliability of connector into sealing performance of connector in use and performance of car in driving to prevent sparks. In addition, in driving of car, connector can also show performance of shielding and performance of temperature control.
Generally, when discussing sealing performance of automobile connectors, it is not only for sealing performance of water in automobile. In this field, internationally popular management standard is IP67, this standard is also the highest level in automotive enclosed industry. Although requirements for waterproofing are different in different parts of car, many car manufacturers will choose IP67 to ensure airtight performance of their car's connectors.
In driving of a car, power source is a very important source of energy, which is not only related to normal operation of engine, but also often involves use of power when people are driving. Therefore, in power system of car, car connector has different divisions. There are certain sealing measures that can be implemented between male connector and device, between male connector and cable, between male and female connectors, between female connector and cable.

 

In realization of sealing performance of automobile connectors, sealing ring is a commonly used tool. This tool can not only achieve effect of fixing between different holes, but also achieve effect of sealing. It can not only ensure stable operation of automobile equipment, but also ensure waterproof performance of automobile equipment during work. Silicone rubber is used for most of sealing ring. This material is made of liquid silicon and solid silicon after a certain chemical change.
Now that cars are in use, electronic circuit technology is an important aspect in automotive industry, not only in entertainment of driver, but also in control system of car while driver is driving. Electronic circuit technology plays an important aspect in stable operation of car.
In order to ensure that electronic circuit technology can work stably, many shielding technologies are now used in production of automobiles. These shielding technologies not only play a protective role in electronic circuit of car, but also have ability to resist interference and radiation in components of car. In addition, it can also play a protective effect on stable operation of car connector. These shielding technologies in automobiles can be divided into two types: inner shielding and outer shielding.
When using external shielding to protect automotive connectors, two identical shielding shells are usually assembled together to form a shielding layer, length of shielding layer can cover length of entire connector. There is enough lock plate structure to ensure reliable installation of shielding layer. In addition, shielding material used must not only be electroplated, but also be treated to prevent chemical corrosion.