The invention relates to the technical field of acoustic metamaterial sound insulation, and discloses an acoustic metamaterial sound insulation mechanism and a sound insulation cover thereof, and the acoustic metamaterial sound insulation mechanism comprises a net-shaped epoxy resin baffle plate, a reinforcing plate, a polyester resin filling layer, a net-shaped silica gel plate, a containing box with an opening at the rear end, and a polyvinyl chloride resin plate sealed at the rear end of the containing box, which are sequentially arranged from front to back, a plurality of front sound reduction pipes are uniformly distributed in a plurality of groups of sound insulation areas in the reinforcing plate, and the rear ends of the front sound reduction pipes extend into the polyester resin filling layer and are connected with the front end of a middle sound reduction mechanism in the polyester resin filling layer; the middle of the front end of the containing box is provided with a rear sound reduction pipe which penetrates through the net-shaped silica gel plate and extends into the polyester resin filling layer, the rear end of the rear sound reduction pipe communicates with a sound reduction horn in the containing box, and an ethylene propylene diene monomer spiral blade is arranged in the sound reduction horn. According to the invention, sound is obstructed for multiple times, sound transmission is interfered, and a multi-stage sound insulation effect is achieved.
本发明涉及声学超材料隔声技术领域,且公开了一种声学超材料隔声机构及其隔音罩,包括从前之后依次设置的网状环氧树脂挡板、加强板、涤纶树脂填充层、网状硅胶板、后端呈开口设置的容纳盒以及密封在容纳盒后端的聚氯乙烯树脂板,加强板中的若干组隔声区域内均匀分布有若干个前置降音管,前置降音管后端延伸至涤纶树脂填充层内并与涤纶树脂填充层内部的中部降音机构的前端连接;容纳盒的前端中部设有贯穿网状硅胶板并伸入至涤纶树脂填充层内的后置降音管,后置降音管的后端与容纳盒中的降音喇叭筒连通,降音喇叭筒内部设有三元乙丙橡胶螺旋叶片。本发明对声音进行多次的阻隔,干扰声音的传播,起到多级的隔音效果。
Acoustic metamaterial sound insulation mechanism and sound insulation cover thereof
声学超材料隔声机构及其隔音罩
2024-09-03
Patent
Electronic Resource
Chinese
IPC: | G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / 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 |