Patent ID: 9591388
Date: 2017-03-07
CPC Classifications: H04R

Claim:
1. An in-car audio system comprising: a speaker unit having a diaphragm and a magnetic circuit both supported by a frame, the diaphragm being driveable by the magnetic circuit, wherein an outer circumferential portion of the frame is fixed to a surface of a support plate that serves as part of a vehicle structure and that is disposed inward of an exterior panel of the vehicle via a partition wall member having an internal space, wherein the support plate has an opening formed therein, and the opening communicates with the internal space, wherein a front side of the diaphragm faces the internal space and the exterior panel, and sound wave vibration is provided toward the vehicle interior from a rear side of the diaphragm, wherein the vehicle has a communication channel formed therein between the exterior panel and the support plate, and where the communication channel is configured to allow the internal space to communicate with an outside of the vehicle via the opening, wherein a duct connected to the opening is provided between the exterior panel and the support plate, and the communication channel is formed inside the duct, and wherein a spare tire is disposed inward of the support plate, and the speaker unit is covered by a wheel that supports the spare tire.