Rear bumper assembly structure for optimizing automobile exhaust airflow noise

The invention belongs to the technical field of automobile exhaust noise reduction, and relates to a rear bumper assembly structure for optimizing automobile exhaust flow noise. The rear protection exhaust decorative cover (1) is arranged at the position, close to the lower portion, of the rear protection body (2), the rear protection ventilation frame (5) is arranged at the position, close to the lower portion, of the rear side wall (6), and the position from the rear protection exhaust decorative cover (1) to the position of the rear protection ventilation frame (5) is a path leading to an automobile cabin. And the rear protection sound-absorbing cotton (4) is arranged from the position of the inner surface of the rear protection body (2) close to the rear protection exhaust decorative cover (1) to the position of the inner surface of the rear side wall (6) close to the rear protection ventilation frame (5). According to the rear protection assembly structure for optimizing the exhaust airflow noise of the