The development trend of automotive connectors in the new energy vehicle industry

With China becoming the global automobile sales market, the Chinese automobile industry has also entered a new stage of development. From the "12th Five Year Plan", it can be seen that in the next five years, China's automobile industry will shift from being large-scale in the past to strengthening its strength, and its development direction is mainly to promote energy-saving vehicles, including new energy vehicles.

According to the current planning draft, in 2015, China will promote the coordinated development of the automotive industry and related industries, urban transportation infrastructure, and environmental protection, shifting from a major automobile manufacturing country to a strong automobile country. It is expected that the production and sales of 25 million vehicles will reach 2015. Autonomous brand cars will become the cornerstone of China's automotive industry's growth and strength. In 2015, the proportion of China's self owned brand car market will further expand, with a domestic market share of over 50% for self owned brand passenger cars, with a domestic market share of over 40% for self owned brand sedans. In addition, the Chinese automotive industry will shift from relying on domestic demand to going global on a large scale. In 2015, the proportion of domestic brand car exports in production and sales exceeded 10%.

To achieve this goal, * * will vigorously support energy-saving and environmentally friendly vehicles powered by traditional fuels, new energy vehicles dominated by pure electric vehicles, and support the research and development of hybrid fuel, hydrogen fuel, and other vehicles. Specifically, it includes:

**By 2015, we will vigorously support the development of key components for energy-saving and new energy vehicles. Strive to form 3 to 5 backbone enterprises in the field of core components such as motors and batteries, with an industrial concentration of over 60%. Secondly, achieve the industrialization of ordinary hybrid vehicles and strive to have a medium/heavy hybrid passenger vehicle ownership of over 1 million vehicles.

In order to actively adapt to the 12th Five Year Plan, connectors, as the core components of the automotive industry, must be comprehensively improved. According to engineers from Linkconn. cn, a professional terminal connector agent, the development of the connector industry has three major trends:

One is environmental protection, two is safety, and three is connectivity.

● Environmental protection... Due to the existence of high-voltage systems, new energy vehicles also require connectors that are similar to traditional vehicles. Due to the fact that new energy vehicles are "green" vehicles, connectors also require green environmental protection. In terms of safety, due to the ability of new energy vehicle connectors to withstand a current of 250A and a voltage of 600V, the need for high standard electric shock protection is obvious. At such high power, electromagnetic interference is another important issue. In addition, the insertion and removal of connectors can generate electric arcs, which can seriously harm electrical connections and electronic devices, and may cause car combustion, all of which require special design and development of connectors.

● Safety... The high performance requirements of new energy vehicle connectors mainly rely on strict design specifications, such as preventing high-voltage air breakdown in exposed situations, which requires retaining a certain amount of air gap; Under high voltage and high current conditions, the temperature rise should not exceed the rated value; When selecting shell materials, weight, strength, and ease of processing should be taken into account, as well as how to maintain stability and ensure necessary conductivity of the material properties of connector terminals at different temperatures.

● Connectivity... Due to the continuous expansion of automotive entertainment systems, the importance of high-speed data transmission is becoming increasingly prominent. For example, on some car models, a camera head is installed on the reversing mirror, which allows the driver to have a wider field of view, which requires the connector to transmit more data. Sometimes a connector is also needed to solve the problem of transmitting GPS signals and broadcast signals simultaneously, which requires improving its data transmission capability. At the same time, the connector also needs to withstand high temperatures, as the car engine is usually placed in front of the car, and although there is a firewall for protection, there is still some heat that can be transmitted, so the connector needs to be able to withstand high temperatures.