High-efficiency acoustic anionic putty powder for hidden flat acoustic speaker

A hidden, negative ion technology, applied in the direction of filling slurry, etc., can solve the problems of increasing system heat generation and instability factors, low efficiency of audio system, and reduction of sound loudness, etc., to achieve light weight, high cost performance, and sound wave blocking small effect

CN104017414AActive Publication Date: 2014-09-03AMINA SOUND SHENZHEN CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-09-03

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Abstract

The invention provides a high-efficiency acoustic anionic putty powder for a hidden flat acoustic speaker. The putty powder is prepared from the following components in percentage by volume: 10-70 percent of hollow glass beads, 5-30 percent of superfine triple superphosphate, 5-30 percent of ground calcium carbonate, 1-10 percent of hydroxypropyl methyl cellulose, 1-10 percent of white lignocellulose, 2-20 percent of sandwich rubber powder, 1-20 percent of redispersible latex powder, 1-10 percent of dry powdered polyvinyl alcohol and 1-5 percent of anionic powder. The high-efficiency acoustic anionic putty powder for a hidden flat acoustic speaker is small in density and light in weight, has small blockage and little absorption to acoustic wave, and can reduce attenuation to acoustic loudness.
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Description

technical field

[0001] The invention belongs to the field of building materials, and in particular relates to a high-efficiency acoustic negative ion putty powder for a concealed flat-panel audio system. Background technique

[0002] During the development of hidden flat-panel audio in recent years, the various formulas of putty materials currently on the market as part of its sounding body cannot meet the matching requirements. The existing putty powder for interior wall decoration has a high density. The volume is heavy, which seriously blocks and absorbs a large amount of sound wave energy, reducing the sound loudness by more than 10dB, and because the original formula is mainly based on heavy calcium carbonate, due to its own weight and sound wave absorption, it reduces the sound while reducing the sound. The high frequency emitted by the speaker is also partially absorbed, resulting in the absence of some frequency bands when listening to the sound. In order to make up...

Examples

Embodiment 1

[0024] Weigh each component according to the following volume percentages:

[0025]

[0026]

[0027] The above raw materials are prepared according to the volume percentage, stirred evenly, and can be packaged and stored. When used, the putty powder and water are mixed according to the volume ratio of 2:1 to form a paste.

Embodiment 2

[0029]

[0030] The volume percentage of the above raw materials is prepared and stirred evenly. It can be packaged and stored. When in use, mix the putty powder and water according to the volume ratio of 2:1 to form a paste.

Embodiment 3

[0032]

[0033] The volume percentage of the above raw materials is prepared and stirred evenly. It can be packaged and stored. When in use, mix the putty powder and water according to the volume ratio of 2:1 to form a paste.