Winterthur, Switzerland – Automotive insulation manufacturer Autoneum has launched two PU-based products designed to reduce the high-frequency sounds of electric vehicle motors: Hybrid-Acoustics Flex and Fit Flex. The company says the technologies are tailored to specific customer needs, and are produce with zero waste.
Anticipating the increasing demand for sound-reducing components in both the front and the rear of EVs, Autoneum has supplemented its technologies for noise protection in the engine bay of combustion-engined cars to new, tailor-made, applications for EVs.
Hybrid-Acoustics Flex and Fit Flex reduce noise directly at the source, and their adaptive capacity to different sizes and shapes allows for a variety of uses in electric vehicles: from e-motor encapsulations to the reduction of noise and vibration of inverters, gearbox, pumps and compressors. Both models are made using PU injection moulding. Hybrid-Acoustics Flex uses the same acoustic concept as its Hybrid-Acoustics PET, but uses a foam decoupler rather than the felt decoupler used in the PET version. Fit Flex combines the foam decoupler with an injection-moulded heavy layer.
The company says the high geometrical adaptability of foam to complex shapes allows for improved acoustic performance in the insulation of e-motors and other noise sources in EVs. The acoustic quality of the foam can be flexibly tuned to specific customer needs.
Autoneum’s Hybrid-Acoustics Flex and Fit Flex are now available in Europe, North America and China.