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Damping material and preparation method thereof as well as loudspeaker enclosure to which damping material is applied

A technology of sound-absorbing materials and molecular sieves, which is applied in the field of sound-absorbing materials, can solve the problems of low speaker performance stability, speaker performance degradation, and easy adsorption of organic matter, etc., and achieve the effects of improving low-frequency acoustic performance, improving low-frequency effects, and excellent stability

Inactive Publication Date: 2018-12-11
AAC TECH NANJING
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Ordinary molecular sieves are easy to absorb moisture in the air at room temperature and occupy the micropores, resulting in a decrease in the performance of the speaker; and it is easy to absorb organic matter, making the molecular sieve invalid, resulting in low performance stability of the speaker

Method used

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  • Damping material and preparation method thereof as well as loudspeaker enclosure to which damping material is applied
  • Damping material and preparation method thereof as well as loudspeaker enclosure to which damping material is applied
  • Damping material and preparation method thereof as well as loudspeaker enclosure to which damping material is applied

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preparation example Construction

[0030] The present invention also provides the preparation method of the above-mentioned sound-absorbing material, the specific process is as follows figure 1 shown.

[0031] Step S1: Using a silicon source, an alkali source, a template agent, a metal element M source, and hydration to synthesize an MFI molecular sieve with an atomic molar ratio of silicon element to metal element M between 220 and 600.

[0032] In this step, when the effect is optimal, a molecular sieve with an MFI structure in which the atomic molar ratio of silicon element to metal element M is between 250 and 500 is synthesized; more preferably, a molecular sieve with an MFI structure between 280 and 450 is synthesized.

[0033] Regarding step S1, specifically, the source of the metal element M is described by taking the aluminum source as an example. The synthetic raw materials (silicon source, aluminum source, template agent, alkali source, etc.) The reaction obtains molecular sieve powder with MFI stru...

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Abstract

The embodiment of the invention relates to the technical field of damping materials, and discloses a damping material. The damping material comprises a molecular sieve with an MFI structure, the molecular sieve with the MFI structure comprises a framework and cations outside the framework, the framework comprises SiO2 and metal oxide MxOy which contains a metallic element M, the damping material is characterized in that in the framework, the Si / M atomic mole ratio ranges from 220 to 600, wherein the metallic element M contains aluminum, the cations outside the framework are one or more kind ofhydrogen ions, alkali metal ions or alkaline earth metal. The invention further provides a preparation method of the damping material as well as a loudspeaker enclosure to which the damping materialis applied. According to the damping material and the preparation method thereof as well as the loudspeaker enclosure to which the damping material is applied, the loudspeaker enclosure performance can be further improved, the molecular sieve failure can be reduced, and the performance stability of the loudspeaker enclosure can be improved.

Description

【Technical field】 [0001] The embodiments of the present invention relate to the technical field of sound-absorbing materials, in particular to a sound-absorbing material, a preparation method thereof, and a speaker box using the sound-absorbing material. 【Background technique】 [0002] With the development of science and technology and the improvement of living standards, people have higher and higher requirements for the performance of speaker boxes. Especially, for the speaker box of a mobile phone, it is required to provide excellent acoustic performance while keeping the volume as small as possible. The sound quality of the speaker box is closely related to the design and manufacturing process, especially the size design of the rear cavity of the speaker box. Usually, the smaller the back cavity of the speaker box, the worse the acoustic response in the low frequency band, and the worse the acoustic performance such as sound quality, so it is necessary to try to expand ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B39/04C01B39/06H04R1/22
CPCC01B39/04C01B39/065H04R1/22C01B39/06G10K11/165H04R1/288C01B39/38C01B39/40H04R1/2876
Inventor 唐琨冯宏枢戴际强王和志
Owner AAC TECH NANJING
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