POLYURETHANE/POLYUREA ELASTOMER COATED STEEL BATTERY BOX FOR HYBRID ELECTRIC VEHICLE APPLICATIONS

摘要

A battery box with a lid and a tray assembly for batteries for a hybrid electric vehicle. The lid and tray assembly are made of steel with an internal and external spray coating of an elastomer with high electrical resistance properties. Batteries are mounted in the tray assembly and enclosed by the lid. The elastomer coating on the tray assembly and the lid provides a nonelectrically conductive interior and exterior surface for increased service safety. The steel base material of the tray assembly and the lid provides shielding from electro-magnetic interference and radio frequency interference associated with the high voltages required to operate electric motors in hybrid electric vehicles. Additionally, the tray assembly has vents designed to optimize cooling of the batteries.