The invention relates to the technical field of vehicles, and discloses a tire cavity noise reduction device. Which comprises a hub and a tire, and is characterized in that the noise reduction device comprises an active noise reduction device and a passive noise reduction device; the active noise reduction device is arranged in a cavity formed by the tread of the tire and the rim; the passive noise reduction device is attached to the inner surface of the tread of the tire; the passive noise reduction device comprises sound-absorbing cotton, a noise reduction layer and a noise reduction layer, wherein the sound-absorbing cotton is attached to the inner surface of the tread of the tire; the connecting pieces are fixed on the two sides of the sound absorption cotton; and the sound absorption plate is fixed on the connecting piece in a sliding manner. The noise value of the tire is reduced by additionally arranging the active noise reduction device and the passive noise reduction device, and the problem that resonance noise of a tire cavity seriously affects the NVH performance of an automobile is solved.
本发明涉及车辆技术领域,公开了一种轮胎空腔噪声降噪装置。包括:包括轮毂和轮胎,其特征在于,所述降噪装置包括主动降噪装置和被动降噪装置;所述主动降噪装置设置在所述轮胎的胎面与所述轮辋形成的空腔处;所述被动降噪装置贴合在所述轮胎的胎面的内表面;所述被动降噪装置包括:吸音棉,所述吸音棉贴合在所述轮胎的胎面的内表面;连接件,所述连接件固定在所述吸音棉的两侧;吸音板,所述吸音板滑动固定在所述连接件上。本发明通过增设主动降噪装置和被动降噪装置来降低轮胎噪音值,解决轮胎空腔共振噪声严重影响汽车NVH性能的问题。
Tire cavity noise reduction device
一种轮胎空腔噪声降噪装置
2023-10-20
Patent
Electronic Resource
Chinese
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |