The invention relates to the technical field of noise reduction, and discloses a vacuum interlayer sound insulation wallboard structure, a cabin and an aircraft. The structure comprises an outer wall sealing layer, a vacuum sound insulation interlayer, a flexible sealing layer, an air sound insulation interlayer, a sound absorption material layer, an inner decoration plate layer, a flexible supporting unit and a frame beam reinforcing unit, and the outer wall sealing layer and the flexible sealing layer are jointly sealed to form a sealed cavity; the flexible supporting unit is arranged in the sealing cavity to support the outer wall sealing layer and the flexible sealing layer, the sealing cavity is vacuumized to form the vacuum sound insulation interlayer, and the air sound insulation interlayer is arranged between the flexible sealing layer and the sound absorption material layer. The flexible sealing layer and the sound absorption material layer are supported through the frame beam reinforcing unit, and the interior trim panel layer is arranged on the sound absorption material layer. Therefore, the broadband sound insulation performance can be achieved, and the noise reduction index requirement of the aircraft is met.
本发明涉及降噪技术领域,公开了一种真空夹层隔声壁板结构、舱体及航行器。其中,该结构包括外壁密封层、真空隔声夹层、柔性密封层、空气隔声夹层、吸声材料层、内饰板层、柔性支撑单元和框梁加强单元,所述外壁密封层和所述柔性密封层共同密封形成密封腔体,所述柔性支撑单元设置在所述密封腔体内对所述外壁密封层与所述柔性密封层进行支撑,通过对所述密封腔体抽真空形成所述真空隔声夹层,所述空气隔声夹层设置在所述柔性密封层与所述吸声材料层之间,且所述柔性密封层与所述吸声材料层通过所述框梁加强单元支撑,所述内饰板层设置在所述吸声材料层上。由此,可以实现宽频隔声性能,满足航行器的降噪指标要求。
Vacuum interlayer sound insulation wallboard structure, cabin and aircraft
真空夹层隔声壁板结构、舱体及航行器
2024-05-14
Patent
Elektronische Ressource
Chinesisch
IPC: | B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES |
Lightweight sound-insulation fire-resistant wallboard
Europäisches Patentamt | 2023
|Composite sound absorption and insulation wallboard structure for mobile power supply vehicle
Europäisches Patentamt | 2022
|Aircraft with wing and cabin section heat insulation structure
Europäisches Patentamt | 2022
|