The invention discloses a sound insulation material, an automobile front wall sound insulation structure, an automobile and a preparation method of the sound insulation material, the sound insulation material comprises a first sound insulation layer, a separation layer and a second sound insulation layer, the separation layer is located on one side of the first sound insulation layer, the second sound insulation layer is located on one side, away from the first sound insulation layer, of the separation layer, and a plurality of cavities are formed in the separation layer. Therefore, the sound insulation material with excellent sound absorption and insulation performance can be obtained.
本发明公开了隔音材料、汽车前围隔音结构、汽车及隔音材料制备方法,隔音材料包括:第一隔音层,分隔层,分隔层位于第一隔音层的一侧,第二隔音层,第二隔音层位于分隔层远离第一隔音层的一侧,其中,分隔层内部具有多个空腔。由此,可以获得具有优异吸隔声性能的隔音材料。
Sound insulation material, automobile front wall sound insulation structure, automobile and preparation method of sound insulation material
隔音材料、汽车前围隔音结构、汽车及隔音材料制备方法
2022-03-08
Patent
Electronic Resource
Chinese
IPC: | B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
European Patent Office | 2020
European Patent Office | 2020
|