SOUND ABSORPTION PLATE WITH UNIT STRUCTURE

摘要

Provided is a sound absorption plate with a unit structure. The sound absorption plate comprises an ultramicropore sound absorption panel (1), a side plate (2) and a sound absorption back plate (3). The edge parts of the ultramicropore sound absorption panel (1) are connected with the sound absorption back plate (3) through the side plate (2) and thus form a sound absorption resonant cavity (4). The material of the ultramicropore sound absorption panel (1) is a metal material carrying nano microspheres (5). A sound absorption metal thin film (6) carrying nano microspheres (5), parallel to the ultramicropore sound absorption panel, is arranged inside the sound absorption resonant cavity (4). A pore size of the nano microspheres in the ultramicropore sound absorption panel (1) and the sound absorption metal thin film (6) is 100-1000 nm. The sound absorption plate has a simple structure, simple and convenient manufacture and assembly, a wide sound absorption band and a good noise reduction effect, and is suitable for ceiling and wall decorations of buildings.