STRUCTURE FOR IMPROVING NOISE IN SUNROOF OF AUTOMOBILE

摘要

A noise reducing structure of a vehicle sunroof is provided to lower drone noise generated in opening the sunroof while driving a vehicle and howling noise generated in tilting the sunroof by using a blowing function of an air conditioner installed between a roof panel and a headlining of the vehicle and disturbing air flow from a distal end of the sunroof glass. A noise reducing structure of a vehicle sunroof comprises an opening unit(24) formed on a roof panel(21) to mount a sunroof glass(20); the sunroof glass mounted on the opening unit to be tilted to a certain angle and to slide between the roof panel and the headlining so as to be opened/closed; and an air conditioning duct(22) installed between the roof panel and the headlining to block air flow inside/outside in operating the sunroof glass and disposed on the distal end of the opening unit. The sunroof is tilted to a certain angle or slides to be opened so as to inflow outer air into a vehicle room in driving the vehicle. The air flow through the front side of the vehicle generates drone noise by passing through a deflector(23) and colliding with the distal end of the roof panel or the sunroof glass.