The invention provides a sound absorbing body for an automobile and a floor muffler for an automobile. Each of the sound absorbing body and the floor muffler includes a plurality of mixed members and an adhesive. The mixing main bodies of the plurality of mixing members are formed from three-dimensional shaped crushed raw materials among a plurality of crushed raw materials obtained by crushing a laminated composite raw material into various shapes including a three-dimensional shape and a linear shape. The mixed glass fiber portions of the plurality of mixing members are formed of a plurality of glass fibers extending as crushed from corresponding portions of the mixing body corresponding to the glass fiber layer. Each of the mixed glass fiber portions of the plurality of mixing members is located in a labyrinth-like path formed between mixing bodies of the plurality of mixing members facing each other in a stirred mixture including the plurality of mixing members stirred and mixed in the adhesive and the adhesive. Such a sound-absorbing body for an automobile or a floor muffler for an automobile can exhibit excellent sound-absorbing performance against noise.

    本发明提供一种汽车用吸音体及汽车用底板消声器,其各自包括多个混合构件及粘合剂。的多个混合构件的混合主体由将层叠状复合原材粉碎成包括立体形状及线形形状的各种形状而成的多个粉碎原材中的立体形状的粉碎原材形成。多个混合构件的混合玻璃纤维部由从混合主体中的与玻璃纤维层对应的对应部位随着粉碎而延伸出的多根玻璃纤维形成。多个混合构件的各混合玻璃纤维部位于迷宫状路径内,所述迷宫状路径在包括在粘合剂内搅拌混合的多个混合构件与所述粘合剂的搅拌混合体内形成于多个混合构件中的相互对置的各混合主体之间。这样的汽车用吸音体或汽车用底板消声器可对噪音发挥优异的吸音性能。


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    Title :

    Sound-absorbing body for automobile and floor muffler for automobile


    Additional title:

    汽车用吸音体及汽车用底板消声器


    Contributors:

    Publication date :

    2023-04-28


    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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