The invention provides a sound absorption and insulation material with a multi-layer composite structure. The material is characterized by being used for new energy automobile interiors. The sound absorption and insulation material is sequentially provided with a non-woven fabric layer serving as a first layer, a sound absorption layer serving as a second layer, a non-woven fabric layer serving as a third layer, a sound insulation layer serving as a fourth layer, a non-woven fabric layer serving as a fifth layer, a sound absorption layer serving as a sixth layer and a non-woven fabric layer serving as a seventh layer, and the overall thickness of the sound absorption and insulation material is 30-50 mm. The sound absorption and insulation material is formed by stacking seven layers of structures according to a specific sequence, the non-woven fabric layers serving as the first layer and the seventh layer can improve the overall formability of the sound absorption and insulation material, the hot welding performance of the sound absorption and insulation material and common plastic parts in a vehicle is improved,he sound absorption and insulation material can be conveniently bonded with other parts or formed through spot welding, and the sound absorption and insulation material can be mounted at any part of the vehicle without barriers and with high degree of freedom, so that the mounting adaptability is improved, meanwhile, the edge sealing of the whole structure can be ensured, and the mounting functionality and attractiveness are improved.

    本发明提供一种具有多层复合结构的吸隔音材料,其特征在于,用于新能源汽车内饰,依次具备:作为第一层的无纺布层、作为第二层的吸音层、作为第三层的无纺布层、作为第四层的隔音层、作为第五层的无纺布层、作为第六层的吸音层、作为第七层的无纺布层,所述吸隔音材料的整体厚度为30mm~50mm。根据本发明的吸隔音材料由七层结构以特定顺序叠加而成,作为第一层和第七层的无纺布层可以增加吸隔音材料整体成型性,增加与车内常见的塑料零件的热焊接性能,可以方便与其它零件粘贴或者点焊成型,能够使吸隔音材料无障碍且高自由度地安装设置于车辆任何部位,改善安装适配性,同时还可以保证整体结构可封边,改善安装功能性和美观性。


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    Title :

    Sound absorption and insulation material with multi-layer composite structure


    Additional title:

    一种具有多层复合结构的吸隔音材料


    Contributors:
    HE RONG (author) / KANG FEI (author)

    Publication date :

    2021-08-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    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




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