Sound absorbing material and speaker box using same
AssigneeAac Acoustic Technologies (Shenzhen) Co., Ltd.
InventorsHongshu Feng, Hezhi Wang, Kun Tang, Guochuang Huang
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Abstract
The present disclosure provides a sound absorbing material. The sound absorbing material comprises MFI-structural-type zeolite. The MFI-structural-type zeolite comprises a framework, and the framework comprises SiO2 and AlO3, and the mass ratio of Si to Al in the framework is less than 200 and not less than 50. The present disclosure also provides a speaker box applying the sound absorbing material. The sound absorbing material provided by the present disclosure and the speaker box using the sound absorbing material can further improve the performance of the speaker box, reduce the failure of zeolite and improve the performance stability of the speaker box.
Claims11
A speaker box, comprising:
- a shell having a receiving space;
- a speaker accommodating in the shell;
- and
- a rear cavity which is defined by the speaker and the shell, wherein a sound absorbing material is filled in the rear cavity;
- the sound absorbing material comprising:
- MFI-structural-type zeolite which comprises a framework, the framework comprises SiO2 and Al2O3, and a mass ratio of Si to Al in the framework of the MFI-structural-type zeolite is less than 140 and not less than 50;
- wherein the MFI-structural-type zeolite further comprises extra-framework cations.
Dependencies are inferred from the claim text.