The invention provides a composite sound absorption and insulation wallboard structure for a mobile power supply vehicle. The composite sound absorption and insulation wallboard structure for the mobile power supply vehicle is of a lightweight structure, effectively isolates noise, reduces the manufacturing cost and facilitates expansion or change of a follow-up structure. The sound absorption part comprises a frame plate and a sound absorption medium layer; the sound insulation part comprises an inner skin, a polyurethane layer and an outer skin; the frame plate comprises peripheral connecting edges and an inner concave cavity formed by bending the middle part, the inner concave cavity is formed by splicing an inner end plate and peripheral connecting plates, the end part, facing the inner skin, of the connecting plate on each edge is respectively provided with the connecting edge which is bent to protrude towards the outer side, a plurality of micro-perforated holes are distributed in the surface of the inner end plate, and the micro-perforated holes are formed in the surface of the inner end plate. The micro-perforated holes penetrate through the thickness of the inner end plate, a sound absorption medium layer is arranged in the inner concave cavity, and the opening end of the inner concave cavity is arranged towards the inner skin; the inner skin is fixedly arranged on the inner surface of the polyurethane layer, and the outer skin is fixedly arranged on the outer surface of the polyurethane layer.
本发明提供了一种用于移动电源车的复合吸隔声壁板结构,其为轻量化结构,有效隔绝噪音,降低了制作成本,且方便后续结构的拓展或更改。其包括:吸声部分,其包括框架板材、吸声介质层;隔声部分,其包括内蒙皮、聚氨酯层、外蒙皮;所述框架板材包括四周连接边以及中部折弯形成的内凹腔,所述内凹腔由内端板、四周连接板拼合形成,每边的所述连接板的朝向内蒙皮的端部分别设置有折弯向外侧凸起的所述连接边,所述内端板的表面上排布有若干微穿孔,所述微穿孔贯穿所述内端板的厚度,所述内凹腔内设置有吸声介质层,所述内凹腔的开口端朝向所述内蒙皮布置;所述聚氨酯层的内表面固设有所述内蒙皮,所述聚氨酯层的外表面固设有所述外蒙皮。
Composite sound absorption and insulation wallboard structure for mobile power supply vehicle
一种用于移动电源车的复合吸隔声壁板结构
2022-04-12
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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