Lapp Helix an innovative retractable coiled charging cable.
In the automotive industry, small differences in size, weight and cost can often represent a significant competitive advantage. This is particularly true of electric and hybrid vehicles, which are only viable if they are affordable and offer an adequate range for day to day use. The Lapp Group has addressed this through the introduction of a unique new charging cable – Lapp Helix.
The advantages of Helix
The spiralled design is more compact than ordinary cables. A 4-metre Lapp Helix takes up 60% less space than a coiled charging cable of the same length, making it easier to fit into the luggage compartment, tailgate or doors of a vehicle. When used in a fixed charging station, it can be fitted underneath a flap for protection.
The cable uses only about half as much material as a coiled alternative, making it 40% lighter and thus helping to increase the car’s range. This reduced material requirement results in a 25% cost saving for the automobile manufacturer. The cables low weight also makes it easier to handle, so the whole charging process is easier for the driver. Once the battery is charged the Helix retracts back into its housing for safe storage.
The cable winds horizontally with a restoring force similar to that found in a coiled spring, effectively the new cable ‘remembers’ its storage position. The components of Lapp Helix are based on the existing Lapp Charge system. The cable is halogen free, fire and oil-resistant and has an operating temperature of -40 to 90°C, making it ideal for use in tough conditions. Like the Lapp Charge, its design can be tailored to customer needs, for example by adding a manufacturer’s logo.
Lapp recommends the VDE-compliant plug developed in cooperation with its partner company Bals Elektrotechnik. The complete range of plug and socket units is designed to accommodate additional contacts in future that will allow data to be exchanged between the vehicle and its power supply during charging.
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