KOCHETOV'S ACOUSTIC BAFFLE Russian patent published in 2014 - IPC E04B1/84 

FIELD: machine building.

SUBSTANCE: in acoustic baffle composed by frame and acoustic fabric, the frame is formed by support stands and horizontal profiles, where the acoustic panels are installed, which can be both noise reflecting translucent, and opaque noise absorbing, and their arrangement in the acoustic baffle can be in any combination of vertical and horizontal rows. Each of opaque noise absorbing acoustic panels is made as rigid and perforated walls, between which the layers of sound reflecting, and sound-proof materials of different density arranged in two layers are located. The layers of sound reflecting material are made from complex profile composed of evenly distributed hollow tetrahedrons. The layers of sound reflecting material are made from heat insulation material capable to maintain the pre-set microclimate in a premise, and as a sound-proof material the plates from basalt-based mineral wool like Rockwool, or URSA mineral wool, or basalt cotton wool P-75, or glass-wool with a woven glass liner are used.

EFFECT: raised efficiency of noise suppression.

3 cl, 2 dwg