New energy vehicles refer to other energy vehicles in addition to gasoline and diesel engines, such as hybrid cars, hydrogen energy powered cars, solar cars, fuel cell cars and so on. These cars have common ground -- low emissions, so they are also called "green" cars. In order to ensure environmental protection, the electrical connectors used should not only be safe, but also be environmentally friendly.

These green cars operate in the voltage range of 400V-600V and the current range of 50A-300A or higher. During operation, operators will inevitably come into contact with the engine compartment during the whole life cycle of the vehicle, so a high standard of anti-shock protection is required. In order to ensure safe operation and prevent car combustion, electric connectors need to be specially designed and developed.

When choosing the shell material for the electric connector of new energy vehicles, we should first consider the weight, strength and whether it is easy to process, and the stability and conductivity of the material properties of the connector terminals at different temperatures need to be considered; Secondly, to ensure that in the case of high voltage and high current, the temperature rise cannot exceed the rated value, so thermoplastic shell and silicone sealed electrical connectors are often used, because they can withstand extreme humidity and temperature.

There are many kinds of structures used in aviation plugs, different structures have different advantages, such as: keying/polarization processing, can prevent improper engagement, spear contact, can prevent damage or entanglement; Integral CPA prevents accidental unlocking. Interface and wire seals help protect the environment and so on. Design can be considered according to the actual needs.

Nowadays, the automobile entertainment system is constantly expanding. In order to give the driver a broader vision, some models will install cameras on the reversing reflector, and there are USB interfaces for data transmission inside the car. Sometimes, electrical connectors are required to transmit GPS signals and broadcast signals, so the data transmission capability needs to be improved.

The car engine is usually in front of the car, will generate heat, even if there is a firewall protection, there will still be heat conduction, which requires the electrical connector has the advantage of high temperature.

Usually, the service life of the plug-in is 3-5 years, but the service life of the electric connector on the car should be the same as that of the car, that is, the short life should be used for 10 years. This requirement is quite high, and the selected material should have the advantage of high service life.