The invention discloses a silencing device, a vehicle cover and a vehicle. The silencing device comprises a hollow silencing plate, and a plurality of silencing channels which are arranged in a staggered mode are arranged in a hollow cavity of the silencing plate; a plurality of grooves are formed in the inner side of the silencing plate, each groove is communicated with at least one silencing channel, a sponge body is arranged in each groove, and a filtering structure is arranged at an opening of each groove. When an engine or other equipment in a cabin generates noise, the noise enters the inner side of the silencing device, firstly collides in the porous interior of the sponge body to enable sound energy to be preliminarily consumed, then the noise enters the silencing channels in the silencing plate, and due to the fact that the silencing channels are distributed in a staggered mode, the noise can be effectively reduced. The transmission distance of noise in the silencing device is greatly increased, energy of the noise is gradually attenuated, and therefore the noise in an engine cabin is effectively reduced.
本申请公开一种消音装置、车辆机盖以及车辆,所述消音装置包括中空的消音板,所述消音板的中空腔室内设置交错布置的多个消音通道;所述消音板的内侧设置有多个凹槽,每个所述凹槽与至少一个所述消音通道连通,所述凹槽中设置有海绵体,且所述凹槽的槽口设置有过滤结构。当机舱内的发动机或者其他设备产生噪音时,噪音进入到消音装置的内侧,先在海绵体的多孔状的内部进行碰撞使声能得到初步的损耗,随后进入到消音板内的消音通道的内部,由于消音通道交错分布,使得噪音在消音装置内的传播距离大幅增加,将噪音的能量逐渐衰减,从而有效地降低发动机机舱内的噪音。
Silencing device, vehicle cover and vehicle
一种消音装置、车辆机盖以及车辆
2024-03-12
Patent
Electronic Resource
Chinese
Vehicle-mounted headrest for silencing, vehicle-mounted seat, vehicle and silencing method
European Patent Office | 2023
|European Patent Office | 2021
|