Application of high voltage connector in vehicle system

HV Cable Connector For Cable 25mm² 6mm 125A Straight Metal 2 Pin HVIL Series Plug

Connectors for new energy vehicles are one of the major categories of connectors. In recent years, with the development of new energy vehicles in the country, they are gradually separated from traditional high-voltage and high-current and traditional low-voltage automotive connectors.

Compared with traditional high-voltage and high-current connectors, the working conditions of new energy vehicle connectors are more complicated and changeable, and the reliability requirements of the connectors are higher; compared with traditional low-voltage automotive connectors, due to the increase in voltage level ( The current mainstream system voltage is higher than 300V DC), which increases the risk of human body injury from electric shock, and has higher requirements on the safety of the connector; therefore, the insulation and protection requirements of the product are improved compared with traditional low-voltage plug-ins.

The role of the connector for new energy vehicles is mainly to ensure the high-voltage interconnection system of the vehicle, that is, to build a bridge where the internal circuit is blocked or isolated to allow current to flow. The composition of the connector for new energy vehicles can generally be divided into three parts: auxiliary structures such as housing and sealing parts, insulating parts, and conductive contact pairs. Through the mating and mutual cooperation between the plug sheath and the socket sheath, the function of connection and conduction can be achieved.

The high-voltage connector is mainly used in the high-voltage and high-current circuit of new energy vehicles. It acts simultaneously with the conductive cable. It transmits the energy of the battery pack to various parts of the vehicle system through different electrical circuits, such as battery packs, motor controllers, and DCDC. Body power units such as converters and chargers.

The following figure is a layout diagram of the high-voltage connector in the application of the whole vehicle system.

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