Active noise reduction and sound insulation large-hollow-rate wallboard and preparation method thereof

Abstract

The invention discloses an active noise reduction and sound insulation large-hollow-rate wallboard and a preparation method thereof, and belongs to the technical field of sound insulation wallboards. The active noise reduction and sound insulation large-hollow-rate wallboard comprises a wallboard body and an active noise reduction structure, wherein the active noise reduction structure comprises a battery, a sound receiving device, an acoustic processor and a sound production device, the battery is located on the outer side of the wallboard body, the sound receiving device, the acoustic processor and the sound production device are located on the inner side of the wallboard body, and the battery, the sound receiving device, the acoustic processor and the sound production device are electrically connected. According to the active noise reduction and sound insulation large-hollow-rate wallboard, an active noise reduction mode, namely an active noise elimination technology, is adopted, and the defect of passive noise reduction of a traditional sound insulation wallboard is overcome; when environmental noise is too loud and lasts for a long time, the noise reduction effect of the wallboard is obviously superior to passive noise reduction of a traditional sound insulation board; meanwhile, the solar storage battery is adopted to continuously provide electric energy for the active noise reduction structure of the wallboard body, green and energy-saving effects are achieved, the preparation process is simple, the price is low, and the practical application value is achieved.

Description

technical field [0001] The invention relates to the technical field of sound insulation wall panels, in particular to an active noise reduction and sound insulation large hollow wall board and a preparation method thereof. Background technique [0002] The traditional sound insulation wall panel is a high-performance constrained damping structural board, which is composed of a high-performance viscoelastic damping sound insulation coating and a constrained damping layer. The working principle of sound insulation wall panels is to block sound transmission, which is called passive noise reduction. Passive noise reduction adopts simple physical methods, and uses various characteristics of materials to isolate, dampen, damp and reflect noise sources. etc. to reduce noise. However, because the noise is not processed by the noise reduction circuit chip, it can generally only block high-frequency noise and has little effect on low-frequency noise. [0003] At present, sound insul...

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Problems solved by technology

[0004] In view of the above-mentioned deficiencies, the object of the present invention is to provide an active noise-reducing sound-insulating large hollow rate wallboard and its preparation method, which can effectively solve the problems of inconvenient installation and disassembly, poor sound-insulating and sound-absorbing effect and lack of active noise reduction existing in existing sound-insulating wallboards. problem with noise

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