For vehicles, the importance of braking is self-evident. Because rail vehicles carry a large number of people, the reliability of customized rail transit connection system is more important. In the rail transit connection system, the braking control unit is the core to ensure the stable operation of the whole system. Various connection components for power supply, control and data transmission are densely distributed in the brake control unit.

Pure electric vehicles and plug-in hybrid vehicles generally adopt a high voltage of more than 300V and a large current of hundreds of amps. The high-voltage circuit is the key component of the high-voltage electrical system of the whole vehicle. As the connection of each functional module of the whole vehicle and an important part of the high-voltage circuit, the accurate design, analysis and selection of high-voltage connector products are of great significance for electric vehicles.

At present, in the field of energy storage, the application and development of lithium batteries are very sensitive. Lithium battery energy storage has the advantages of high energy density, long service life and green environmental protection. However, it also has some disadvantages, such as high production cost, poor safety function and the risk of explosion. Therefore, the safety planning of heat treatment system is very important for the application of lithium batteries, As an indispensable element in series and parallel between battery packs, the temperature rise effect of energy storage coupler has a great impact on the whole lithium battery energy storage system. Therefore, low temperature rise planning has become an inevitable trend in the development of energy storage coupler.