The soundproof box is an isolation cavity made of sound insulation, damping, sound insulation materials, etc., and is a device used to meet the environmental requirements of audio testing.
Soundproof box is the main equipment used to test the acoustic noise level of electro-acoustic components and electronic mechanical products. Such as electric toothbrushes, small motors, audio, etc. The difference between it and the soundproof room is that the soundproof box is small in size, light in weight, good in sound insulation, and easy to move, and can be applied to different occasions. Therefore, the manufacturing process and material selection of sound insulation boxes are very strict.
1. Sound insulation structure:
Due to the high requirements for sound insulation indicators of sound insulation boxes, the sound insulation box is designed as a three-layer structure. The sound insulation box shell is made of 2mm thick high-quality cold-rolled electrolytic steel plate and multilayer damping sound insulation material. Materials, etc. There is a sealing rubber pad on the side of the soundproof box door, and there is a product test cable interface in the box.
2. Sound absorption structure:
1) The inner surface of the box is pasted with 50mm thick egg sound-absorbing cotton. This method has good sound-absorbing effect.
2) The bottom of the soundproof box is equipped with four shock absorbers to reduce the impact of external vibration and sound sources on the soundproof box.
1) The sound insulation box adopts a suspension structure, which can effectively reduce the transmission of solid noise. It is made of multilayer polymer composite plates, which can reduce the weight of the box and improve the sound insulation effect.
2) The inner and outer cases of the box are made of 2mm cold-rolled steel plate, and are made by stamping, welding, pickling, spraying and other steps. Sound insulation wall panels.
3) The materials used for the sound insulation box are flame-retardant, fire-resistant, and environmentally friendly materials without odor
Sound insulation range of the soundproof box:
1) Sound pressure level in the external environment is ≤80dB (A-weighted), and the background noise in the soundproof box is ≤45dB (A-weighted)
2) The sound pressure level in the external environment is ≤70dB (A-weighted), and the background noise in the soundproof box is ≤40dB (A-weighted)
In order to facilitate the use requirements of our customers, we can also design and manufacture according to customer requirements and on-site environmental noise to achieve the user's ideal use effect. Jiachen Technology specializes in manufacturing sound box manufacturers.
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