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公开(公告)号：US20200031678A1
公开(公告)日：2020-01-30
申请号：US16522699
申请日：2019-07-26
发明人： Hongshu Feng , Hezhi Wang , Jiqiang Dai , Kun Tang
摘要： The present disclosure provides an low-frequency improvement material. The low-frequency improvement material comprises a plurality of zeolite particles which comprises a plurality of zeolite grains, the zeolite grains comprises a plurality of zeolite crystallites, the zeolite crystallite comprises frameworks and extra-framework cations, the skeleton comprises SiO2 and MxOy containing element M, the average crystalline size of the zeolite crystallite ranges from 5 nm to 75 nm. The present disclosure also provides the low frequency speaker system improved materials applications. Improving material of the present disclosure provides low frequency and low frequency applications the material is improved speaker system can further improve the performance of the speaker system, the molecular sieve to reduce failure, improve performance stability Ascension speaker system.
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公开(公告)号：US11140475B2
公开(公告)日：2021-10-05
申请号：US16522692
申请日：2019-07-26
发明人： Kun Tang , Hongshu Feng , Jiqiang Dai , Hezhi Wang
摘要： The present disclosure provides a sound absorbing material. The sound absorbing material comprising MFI-structural-type molecular sieves, the MFI-structural-type molecular sieves comprises frameworks and extra-framework cations, the framework comprising SiO2 and a metal oxide MxOy containing a metal element M, wherein a molar ratio of Si/M is between 220 and 600 in the framework, the metal element M comprises aluminum, and the extra-framework cations are at least one of hydrogen ions, alkali metal ions and alkaline earth metals. The present also provides a method for preparing a sound absorbing material and a speaker box using the sound absorbing material.
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公开(公告)号：US20200031679A1
公开(公告)日：2020-01-30
申请号：US16522695
申请日：2019-07-26
发明人： Kun Tang , Hongshu Feng , Hezhi Wang , Guochuang Huang , Jiqiang Dai
IPC分类号： C01B39/08 , H04R1/02 , G10K11/162 , C01B39/04
摘要： The present disclosure provides a sound absorbing material. The sound absorbing material includes a sound absorbing material comprising an MFL-structural-type molecular sieve, the MFL-structural-type molecular sieve comprising a skeleton, the skeleton comprising SiO2 and Ga2O3, and the molar ratio of Si/Ga atoms in the skeleton is between 100 and 600. The invention also provides a method for preparing a sound absorbing material and a speaker box using the same. The sound absorbing material provided by the invention, the preparation method thereof and the speaker box using the sound absorbing material can further improve the performance of the speaker box, reduce the failure of the molecular sieve, and improve the performance stability of the lifting speaker box.
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公开(公告)号：US20200037066A1
公开(公告)日：2020-01-30
申请号：US16522697
申请日：2019-07-26
发明人： Hongshu Feng , Hezhi Wang , Kun Tang , Jiqiang Dai
摘要： The present disclosure provides a sound absorbing material. The sound absorbing material comprises MEL-structural-type molecular sieves, the MEL-structural-type molecular sieves comprising frameworks and extra-framework cations, the frameworks comprising silica and an oxide MxOy containing an element M which is a non-silicon element; wherein a mass ratio of Si to M in the framework is at least 80, the extra-framework cations comprise at least one of hydrogen ions, alkali metal ions, alkaline earth metal ions and transition metal ions, and a content of the extra-framework cations is between 0.05 wt % and 1.5 wt %.
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公开(公告)号：US20200037062A1
公开(公告)日：2020-01-30
申请号：US16522687
申请日：2019-07-26
发明人： Jiqiang Dai , Hezhi Wang , Hongshu Feng , Guochuang Huang , Kun Tang
摘要： The present disclosure provides a sound absorbing material. The sound absorbing material comprising a heteroatom zeolite molecular sieve comprising a framework and an extra-framework cation, the framework comprising SiO2 and a metal oxide MxOy comprising a metal element M, wherein the framework has a molar ratio of Si/M between 250 to 500, wherein the M includes Fe, and that the extra-framework cation is at least one of a monovalent copper ion, a monovalent silver ion, a monovalent gold ion, an alkali metal ion or an alkaline earth metal ion. The sound absorbing material provided by the present disclosure, sound absorbing material to have better oxygen adsorption capacity, good waster repellency and stability. When such a sound absorbing material is applied to a speaker box, the speaker box will have better low frequency acoustic performance and better reliability.
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公开(公告)号：US10939195B2
公开(公告)日：2021-03-02
申请号：US16522687
申请日：2019-07-26
发明人： Jiqiang Dai , Hezhi Wang , Hongshu Feng , Guochuang Huang , Kun Tang
IPC分类号： B01J29/068 , H04R1/28 , H04R1/02 , C01B39/06 , C01B39/48 , B01J29/072 , B01J29/44 , B01J29/68 , B01J29/46 , B01J29/40 , B01J29/67 , B01J29/70 , B01J29/76 , B01J29/74 , B01J29/88 , B01J20/28 , B01J29/87 , B01J29/89 , B01J35/02 , B01J37/30 , B01J37/00 , B01J20/18 , C01B39/44 , B01J37/03 , C01B39/36 , C01B39/46 , C01B39/38 , C01B39/08
摘要： The present disclosure provides a sound absorbing material. The sound absorbing material comprising a heteroatom zeolite molecular sieve comprising a framework and an extra-framework cation, the framework comprising SiO2 and a metal oxide MxOy comprising a metal element M, wherein the framework has a molar ratio of Si/M between 250 to 500, wherein the M includes Fe, and that the extra-framework cation is at least one of a monovalent copper ion, a monovalent silver ion, a monovalent gold ion, an alkali metal ion or an alkaline earth metal ion. The sound absorbing material provided by the present disclosure, sound absorbing material to have better oxygen adsorption capacity, good waster repellency and stability. When such a sound absorbing material is applied to a speaker box, the speaker box will have better low frequency acoustic performance and better reliability.
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公开(公告)号：US20200037065A1
公开(公告)日：2020-01-30
申请号：US16522692
申请日：2019-07-26
发明人： Kun Tang , Hongshu Feng , Jiqiang Dai , Hezhi Wang
摘要： The present disclosure provides a sound absorbing material. The sound absorbing material comprising MFI-structural-type molecular sieves, the MFI-structural-type molecular sieves comprises frameworks and extra-framework cations, the framework comprising SiO2 and a metal oxide MxOy containing a metal element M, wherein a molar ratio of Si/M is between 220 and 600 in the framework, the metal element M comprises aluminum, and the extra-framework cations are at least one of hydrogen ions, alkali metal ions and alkaline earth metals. The present also provides a method for preparing a sound absorbing material and a speaker box using the sound absorbing material.
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