What are the key factors that manufacturers consider when producing connectors for new energy vehicles?

In the field of new energy vehicles, high-voltage connector is an important device, which mainly consists of several parts such as contact body, insulator, shell and accessories. As the working voltage range of new energy vehicles has been raised from 12V in traditional vehicles to 400V, it puts higher requirements on the quality and precision of the connectors, which are used in both complete vehicles and charging facilities.

New energy vehicle connector manufacturers are distributed globally, most of which are Japanese companies, including Sumitomo, Nissan, Yazaki, Toyota and so on. Domestic enterprises in the stronger for BASF and Southern Power Grid. AVIC Optoelectronics, Yonggui Electric, Jiangsu Ruikoda and other bulk supply of domestic connector factory is also gradually growing up. In terms of the global connector market, the market concentration is high, basically occupied by the United States, Japan and so on. One of the Tyco accounted for more than 20%. High-voltage connectors on the vehicle are used to connect the following systems: power batteries, high-voltage wiring harnesses, switches, electric air conditioning, DCDC, chargers, DC charging ports, AC charging ports, motors, inverters and so on. High plugging and unplugging times, heat resistance and current-carrying capacity are key considerations in development. New energy vehicle connector production in the selection of materials to be used to have high temperature performance of the material, in the sealing, shielding and waterproofing requirements than the traditional automotive connectors, so the cost is also higher. From the technical composition point of view, the electronic control, motor connector patents are more, the charging, battery connectors and grounding shielding improvements are less. Pure electric vehicles and plug-in hybrids operate at voltages over 300V, and the operating current is usually several hundred amps. High-voltage cables provide a guarantee for the reliability and safety of electric vehicle operation. Unlike the 12V voltage of traditional cars, high-voltage cables need to be considered to prevent overheating or burning, shielding performance, waterproof and dustproof, and electromagnetic compatibility with the entire vehicle electrical system. In practice, the magnetic interference generated by the high-voltage cable will affect the integrity and accuracy of the data transmission in the automotive signal lines, which will seriously affect the safety of the entire vehicle. Therefore, high-voltage cables need to use shielded wires and other methods to reduce magnetic interference. Cables involved in battery pack voltage acquisition and temperature acquisition have high requirements for the crimping process, which requires the use of hydraulic equipment to replace the traditional process. In order to reduce fuel consumption, the use of aluminum instead of copper, which is widely used today, to process high-voltage cables is also a trend of technological development.

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