The principle of acoustic enclosure is to enclose the noise source in a small space, in order to reduce its external radiation noise of an enclosure structure. Therefore, the overall structure of the acoustic enclosure must be designed according to the structure of the sound source equipment, and there is no special fixed shape or structure. Generally speaking, it is necessary to design the composite structure with light weight and good sound insulation performance, and the sound insulation enclosure must be attached with high sound absorption coefficient sound-absorbing lining and so on. According to the working characteristics of some special equipment, will also be used, such as vibration isolation, double sealing structure, with vent structure, plus sound-absorbing materials, ventilation pipe structure, rigid sealing structure, etc.;
Soundproof enclosure and the sound source equipment shall not have any rigid connection, and the two foundations must be a vibration isolation treatment, so as not to cause vibration of the body of the enclosure, the radiation of noise;
In the use of thin metal plate When using sheet metal to make a sound enclosure, the metal plate should be sprayed with a certain thickness of damping material to prevent the enclosure from vibrating;
In the design of the sound enclosure, attention should be paid to preventing sound leakage from gaps and holes, and to make good structural nodes of the connection.