Provided is an automobile component, the sound absorbing performance of which can be improved by attenuation due to vibration of a thin film, while weight reduction of the automobile component is achieved. The automobile component according to the present invention is provided with: a core layer (10) in which tubular cells (20) are arranged in a plurality of lines; and a nonwoven fabric layer (30)disposed on one surface or both surfaces of the core layer. Cell ends on the one surface of the core layer include closed surfaces (21) and open ends (22) in every other line, and cell ends on the other surface of the core layer include the open ends (22) in the lines in which the cell ends on the one surface include the closed surfaces, and include the closed surfaces (21) in the lines in whichthe cell ends on the one surface include the open ends. The inner spaces of the cells (20) are connected to the outside through the open ends (22). A thin resin film layer (40) including a plurality of open holes is provided between the core layer and the nonwoven fabric layer. When the ratio of the area of an open surface formed by each of the open ends and the area of the open hole provided in the resin film layer so as to correspond to the open surface is defined as S, 0
本发明提供一种汽车用部件,其能够实现汽车用部件的轻量化,并且通过薄膜振动引起的衰减能够提高吸音性能。本发明的汽车用部件具有:芯层(10),筒状的单元(20)呈多列配置;和无纺布层(30),位于芯层的一个或两个表面上,芯层的一个表面的单元端部每隔一列具有封闭面(21)和开放端(22),芯层的另一个表面的单元端部在所述一个表面的单元端部具有封闭面的列上具有开放端(22),在所述一个表面的单元端部具有开放端的列上具有封闭面(21),通过开放端(22)使单元(20)的内部空间与外部连通,在芯层和无纺布层之间设置具有多个开孔的薄树脂膜层(40),如果将由开放端形成的开放面的面积与设置在与开放面对应的树脂膜层上的开孔的面积之比设为S,则0
Automobile component
汽车用部件
2020-11-06
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 / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES |