A motor-vehicle underbody liner (18), encompassing a planar porous open-cell carrier component (22); the carrier component (22) being embodied for mounting onto a motor-vehicle underbody (16) and forbeing carried along therewith; the carrier component (22) including an installation side (22a) that faces toward the motor-vehicle underbody (16) during operation as intended, and a liner side that faces away from the motor-vehicle underbody (16) during operation as intended; the carrier component (22) being adjusted, by suitable densification of its open-cell material, to a sound absorption behavior having a sound absorption maximum in a frequency range from 800 Hz to 1250 Hz; there being arranged on the installation side (22a) of the carrier component (22) an additional absorber component (24) having a sound absorption behavior whose sound absorption maximum is also located in a frequency range from 800 Hz to 1250 Hz.
本发明涉及一种机动车底部护板(18),其包括平坦的、多孔的开孔承载构件(22),其中所述承载构件(22)构成为用于安装到机动车底部(16)处并且用于通过所述机动车底部携带,其中所述承载构件(22)具有在正常运行中朝向所述机动车底部(16)的装配侧(22a)和在正常运行中背离所述机动车底部(16)的护板侧,其中所述承载构件(22)通过适宜地压缩其开孔材料调节为具有在800Hz至1250Hz的频率范围中的吸声最大值的吸声特性,其中在所述承载构件(22)的装配侧(22a)上设置有具有吸声特性的附加吸声器构件(24),其吸声最大值同样在800Hz至1250Hz的频率范围中。
MOTOR-VEHICLE UNDERBODY LINER TO ABSORB ROLLING NOISE ON THE VEHICLE LINED THEREWITH
用于吸收在借助机动车底部护板包覆的车辆上的滚动噪声的机动车底部护板
09.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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