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By MT Bureau| Jun 23, 2021

Lanxess Introduces New EV Charging Inlet Design Using Thermoplastic Compounds

Lanxess has introduced its new design concept for charging inlets using thermoplastic compounds (Durethan polyamides and Pocan polyesters) that meets the complex requirements for EV charging infrastructure.

These charging inlets, installed in battery electric vehicles, accommodate the charging coupler of the external charging station.

Gregor Jaschkewitz, Application Developer, High-Performance Materials (HPM), said, “Our approach is aimed at using a modular configuration to get the right material in the right place to meet the complex requirements applicable to the various components with the utmost precision. At the same time, a high level of functional integration is intended to make it as easy as possible to assemble the entire unit, which means screwless assembly and minimal components to keep costs low.”

The design for the product has been developed after adding insights from manufacturers of charging systems and knowledge from the company’s charging infrastructure development projects experiences. The design allows high flexibility in the choice of seals – O-rings, sealing cords or family seals can be used.

The key elements of this charging inlet design are the front and rear housings, a socket for the connector from the charging station and an actuator. The pin holder, another essential element, holds the metallic connector pins in place as well as a printed circuit board (PCB) with cables for charging with direct or alternating current, among others. It positions the cables such that the heat produced during charging is dissipated not only through them but also via the other cables not in use. “This means that the pin holder supports the thermal management and thus makes fast charging at high currents easier,” says Jaschkewitz.

The plastic used for the charging inlets comply with the IEC 62196-1 standard, deliver high electrical insulation resistance, high dielectric strength and tracking resistance and have good fire-retardant properties. The parts that come into direct contact with live components pass the glow-wire end product test (GWEPT) under IEC 60695-2-11. 

Lanxess also provides charging system manufacturers with an extensive range of services through its HiAnt service brand. (MT)

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