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A platform for research: civil engineering, architecture and urbanism
Sound-absorbing particle, sound-absorbing particle preparation method and loudspeaker
The invention relates to sound-absorbing particles, a sound-absorbing particle preparation method and a loudspeaker, and the method comprises the following steps: adding zeolite powder into deionized water, and carrying out ultrasonic dispersion to form a first mixed solution; adding a binder into the first mixed solution, stirring and mixing to form a second mixed solution; atomizing the second mixed solution to form liquid drops; performing graded freezing on the liquid drops to form particles; and sequentially carrying out vacuum drying and oven drying on the particles to obtain the sound-absorbing particles. According to the method, a better strip-shaped and/or strip-shaped pore channel structure can be formed on the surface of the sound-absorbing particle, the sound-absorbing particle with the strip-shaped and/or strip-shaped pore channel structure can enable the resonant frequency F0 of the loudspeaker to shift to low frequency, the reduction of the quality factor Qts of the loudspeaker can be effectively reduced, the low-frequency characteristic of the loudspeaker can be better improved, and the service life of the loudspeaker can be prolonged. And meanwhile, the increase of the power consumption of the loudspeaker is effectively inhibited, and the aging speed of the sound-absorbing particles in the loudspeaker is effectively reduced.
本申请涉及一种吸音颗粒、吸音颗粒制备方法及扬声器，该方法包括：将沸石粉末加入去离子水中超声分散，形成第一混合液；将所述第一混合液中加入粘结剂，搅拌混合，形成第二混合液；将所述第二混合液进行雾化，形成液滴；将所述液滴进行分级冷冻，形成颗粒；将所述颗粒依次进行真空干燥和烘箱干燥，得到吸音颗粒。该方法有利于在吸音颗粒表面形成较佳的带状和/或条状孔道结构，具备带状和/或条状孔道结构的吸音颗粒，能够使扬声器的谐振频率F0往低频偏移，可以有效减少扬声器品质因数Qts的下降，更好的提升扬声器的低频特性，同时有效抑制扬声器的功耗的增加，有效降低吸音颗粒在扬声器中的老化速度。
Sound-absorbing particle, sound-absorbing particle preparation method and loudspeaker
The invention relates to sound-absorbing particles, a sound-absorbing particle preparation method and a loudspeaker, and the method comprises the following steps: adding zeolite powder into deionized water, and carrying out ultrasonic dispersion to form a first mixed solution; adding a binder into the first mixed solution, stirring and mixing to form a second mixed solution; atomizing the second mixed solution to form liquid drops; performing graded freezing on the liquid drops to form particles; and sequentially carrying out vacuum drying and oven drying on the particles to obtain the sound-absorbing particles. According to the method, a better strip-shaped and/or strip-shaped pore channel structure can be formed on the surface of the sound-absorbing particle, the sound-absorbing particle with the strip-shaped and/or strip-shaped pore channel structure can enable the resonant frequency F0 of the loudspeaker to shift to low frequency, the reduction of the quality factor Qts of the loudspeaker can be effectively reduced, the low-frequency characteristic of the loudspeaker can be better improved, and the service life of the loudspeaker can be prolonged. And meanwhile, the increase of the power consumption of the loudspeaker is effectively inhibited, and the aging speed of the sound-absorbing particles in the loudspeaker is effectively reduced.
本申请涉及一种吸音颗粒、吸音颗粒制备方法及扬声器，该方法包括：将沸石粉末加入去离子水中超声分散，形成第一混合液；将所述第一混合液中加入粘结剂，搅拌混合，形成第二混合液；将所述第二混合液进行雾化，形成液滴；将所述液滴进行分级冷冻，形成颗粒；将所述颗粒依次进行真空干燥和烘箱干燥，得到吸音颗粒。该方法有利于在吸音颗粒表面形成较佳的带状和/或条状孔道结构，具备带状和/或条状孔道结构的吸音颗粒，能够使扬声器的谐振频率F0往低频偏移，可以有效减少扬声器品质因数Qts的下降，更好的提升扬声器的低频特性，同时有效抑制扬声器的功耗的增加，有效降低吸音颗粒在扬声器中的老化速度。
Sound-absorbing particle, sound-absorbing particle preparation method and loudspeaker
一种吸音颗粒、吸音颗粒制备方法及扬声器
2023-06-23
Patent
Electronic Resource
Chinese
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