The invention relates to an automobile front wall sound insulation pad. The automobile front wall sound insulation pad comprises a sound insulation pad body; the sound insulation pad body comprises ahard layer and an acoustic film layer which are combined together through a fiber injection molding process. According to the invention, diversified solutions for acoustic parts are provided; and thefeasibility of replacing a heavy layer spring mass system with a lightweight scheme is systematically analyzed through material-level, component-level and vehicle-level acoustic performance verification. Due to the application of a front wall light weight scheme, the weight and cost of a product are greatly optimized, vehicle fuel economy is improved, and VOC problems are solved; customer complaints caused by EPDM aging are avoided; and the sound quality of a passenger compartment is improved. The automobile front wall sound insulation pad conforms to the trend of the light weight developmentof the automobile industry.
本案为一种汽车前围隔音垫,包括隔音垫本体,所述隔音垫本体包括通过纤维注塑成型工艺结合在一起的硬层和声学膜层。本案提供了声学件多元化的解决方案,通过材料级,部件级,整车级声学性能验证,系统的分析了轻量化方案替代重质层弹簧质量系统的可行性。前围轻量化方案的应用,极大的优化了产品的重量和成本,改善了车辆燃油经济性和VOC问题,避免因EPDM老化而引起客户抱怨,且使乘员舱的声品质得到提升,符合汽车工业轻量化发展的趋势。
Automobile front wall sound insulation pad and test method thereof
一种汽车前围隔音垫及其试验方法
2020-05-26
Patent
Electronic Resource
Chinese
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen |
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