Disclosed are a holey plate, which improves the shape of punched holes so as to increase sound absorbing and insulating efficiency and durability, and a composite panel for sound absorption and sound insulation using the same. The holey plate used in the composite panel includes a base part, first bent parts configured to be bent from designated regions of the base part and to extend to be inclined so as to form a plurality of first punched holes by punching the designated regions of the base part in a thickness direction, and second bent parts configured to be bent from the first bent parts and to extend to be inclined so as to form second punched holes extending from the first punched holes, an angle of the second bent parts with the base part being smaller than an angle of the first bent parts with the base part.
本公开涉及一种可以改善冲孔的形状以提高吸音和隔音效率和耐久性的多孔板及利用多孔板的用于吸音和隔音的复合板。用在复合板中的多孔板包括:基部;第一弯曲部,从基部的指定区域弯曲并倾斜地延伸,以通过在厚度方向上对基部的指定区域进行冲孔来形成多个第一冲孔;以及第二弯曲部,从第一弯曲部弯曲并倾斜地延伸,以形成从第一冲孔延伸的第二冲孔,第二弯曲部与基部的角度小于第一弯曲部与基部的角度。
HOLEY PLATE AND COMPOSITE PANEL FOR SOUND ABSORPTION AND SOUND INSULATION USING THE SAME
多孔板及利用多孔板的用于吸音和隔音的复合板
2021-06-11
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 |
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