The present invention provides an inner insulation of a lightweight dashboard for a vehicle that can interrupt noise while reinforcing structure strength of a net to prevent a sound absorbing material of the net from being easily torn out or damaged so that weight can be reduced and performance against noise can be improved as compared with an existing multilayered structure as the net is added to the sound absorbing material, such as polyurethane, which can be easily torn out or damaged. In particular, the present invention also provides an inner insulation of a lightweight dashboard for a vehicle that can improve noise absorption performance in a low frequency band of a booming area and allows a net having a length of an edge such that a proper sound absorbing performance can be obtained according to a frequency band that varies according to model of the vehicle as the length of the edges of the lattice shape formed by the net is 0.01 to 20 mm. The inner insulation of a lightweight dashboard for a vehicle includes a sound absorption layer (10); and a net (20) integrally formed with the sound absorption layer (10).

    본 발명은 폴리우레탄과 같이 찢어지거나 파손되기 쉬운 흡음재에 그물망을 추가하여 구성하므로, 이 그물망이 흡음재가 쉽게 찢어지거나 파손되는 것을 방지할 수 있게 구조적 강성을 보강하면서도 소음을 차단하게 하여 기존 다층 구조와 비교하여 중량을 줄이면서도 소음 성능을 개선할 수 있게 한 자동차용 경량 대시 인너 인슐레이션을 제공하는 데 그 목적이 있다. 특히, 본 발명은 상기 그물망이 이루는 격자 형상의 변 길이를 0.0.1~20㎜로 제작하므로, 부밍 영역의 저주파 대역에서 흡음 성능을 개선할 수 있고, 또한 차종에 따라 달라지는 주파수 대역에 따라 적절한 흡음 성능을 얻을 수 있게 변 길이를 가진 그물망을 제작하여 사용할 수 있게 한 자동차용 경량 대시 인너 인슐레이션을 제공하는 다른 그 목적이 있다.


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    Title :

    LIGHTWEIGHT INNER INSULATION FOR VEHICLE


    Additional title:

    자동차용 경량 대시 인너 인슐레이션


    Contributors:

    Publication date :

    2018-05-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / C08J Verarbeitung , WORKING-UP / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / D03D WOVEN FABRICS , Gewebe



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