The development of automobiles has driven the development of related components, and connectors, as the most basic and necessary components of automobiles, are constantly upgrading with the trend of vehicle development. The function of vehicle connectors is to connect different circuits and systems in the entire vehicle to form a whole, serving as a bridge for current or signal transmission and exchange between electronic system devices.

New energy vehicle interior connectors

In traditional cars, there are many types of connectors that need to be used, with around 600 connectors used in bicycles. With the accelerated development of electrification, networking, and intelligence in cars, the requirements for data and power transmission in cars have further increased, and the number of connectors used in the entire car is naturally more. Nowadays, the number of connectors in new energy vehicles ranges from 800 to 1000, covering various circuit systems.

As the quantity increases, the tasks carried by new energy vehicle connectors are also more complex. On the basis of traditional automotive connectors, the electrical and signal connection parts of new energy vehicles have been subdivided into many differences. In the electrical connection section, traditional cars use low-voltage control as the main engine power system, and the voltage level of the connectors is generally not high.www.ic-bom.com

In the field of new energy vehicles, the engine power system mainly based on low-voltage control has become a high-voltage power system, and the high-voltage platform of new energy vehicles is also rapidly developing towards 800V. The electrical connection part is divided into completely different low-voltage connectors and high-voltage connectors in terms of voltage.

Although the focus is always on high-voltage connectors when discussing the electrical connection of new energy vehicles, low-voltage connectors still have a huge usage in new energy vehicles, building connections between huge infrastructure. In the context of the continuous development of electrification technology in new energy vehicles, the high-voltage connectors used in them have also undergone iterations. The high-voltage system further tests the heat resistance, voltage resistance, current carrying capacity, EMC and other performance of the connectors. Under multiple iterations, the electrical and mechanical properties of the high-voltage connectors have also been continuously improved and optimized.

Under the current high-voltage architecture, the high current capability of high-voltage connectors is still being further improved, such as the current ultra high current busbar scheme. In addition, lightweighting is also an important part of continuous optimization. The lightweighting of connectors can play a significant role in reducing the weight of the entire vehicle, which can further improve the range of new energy vehicles.

In terms of signal transmission, various coaxial transmission connectors and differential transmission connectors will be involved. The primary task of these signal connectors in new energy vehicles is to ensure sufficient transmission speed. The demand for various data connections such as automation functions and sensor fusion in new energy vehicles is increasing day by day, and the required bandwidth is getting higher and higher.

After achieving a sufficiently high speed, the signal connector faces electromagnetic compatibility issues in the high-power environment of new energy vehicles with high data transmission rates. Ensuring that the signal link inside the vehicle is not affected by electromagnetic interference during high-speed transmission is also a very challenging aspect of connector reliability.

New energy vehicle energy replenishment connection

In the high-voltage connection of new energy vehicles, the connection related to energy replenishment is relatively special, namely the charging connector and the battery swapping connector. Will the future of new energy vehicles be based on fast charging technology or fast swapping technology