STRUCTURE FOR REDUCING NOISE OF COOLING DUCT FOR IN-VEHICLE BATTERY

摘要

PROBLEM TO BE SOLVED: To reduce noise propagating to a vehicle interior by a noise reduction structure that is configured to reflect the noise by a shielding plate provided in an air inlet.SOLUTION: A noise reduction structure of an in-vehicle battery cooling duct 18 for supplying an in-vehicle battery with air that is taken by a suction effect of a cooling fan device from an air inlet opened to a vehicle interior includes: a sound insulating plate 42 disposed in the cooling duct 18 at a position spaced on a side of the cooling fan device relative to the inlet; and a sound absorbing material 44 provided on a side of the cooling fan device relative to the sound insulating plate 42 and serving as a noise sound wave propagation suppressing means for suppressing a noise sound wave from propagating toward the inlet.