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Loudspeaker box

A speaker box and front acoustic cavity technology, which is applied in the direction of sound-emitting devices, instruments, sensors, etc., can solve the problems of reducing the maximum and low resonance frequency of the speaker box, increasing the volume of the rear cavity, etc., and achieve the effect of improving fluidity and good low-frequency performance

Inactive Publication Date: 2021-05-14
陈恺琳
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  • Abstract
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  • Application Information

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Problems solved by technology

[0003] Most of the existing speaker boxes use magnetic circuit system and vibration system to vibrate and produce sound. In order to pursue better low-frequency performance, sound-absorbing particles are filled in the rear cavity without changing the volume of the rear cavity. The sound-absorbing particles are porous. The dielectric material can increase the equivalent volume of the rear cavity, thereby reducing the lowest resonance frequency of the speaker box. When the rear cavity is filled with a certain amount of sound-absorbing particles, it will lead to the position of the air inlet away from the rear cavity. The sound-absorbing particles cannot absorb air molecules, so some of the sound-absorbing particles cannot increase the volume of the rear cavity, so that the space of the rear cavity cannot be fully utilized, resulting in poor low-frequency performance of the speaker box

Method used

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  • Loudspeaker box

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0017] see figure 1 , the speaker box includes a housing 1 with a storage space 10, a sound emitting unit 2 accommodated in the storage space 10, and a sound guide channel 3 formed in the storage space 10, the sound unit The body 2 divides the accommodating space 10 into a front acoustic cavity 101 and a rear cavity 102 , and the sound guide channel 3 communicates the front acoustic cavity 101 with the outside world and forms a front cavity 100 together with the front acoustic cavity 101 . The speaker box is used to...

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Abstract

A loudspeaker box provided by the present invention comprises a shell, a sound production single body and a sound guide channel, the sound production single body divides an accommodating space into a front sound cavity and a rear cavity, the shell comprises a cover plate and a base, the base is provided with a support beam, the support beam comprises a flat plate parallel to the base, an inclined plate intersected with one end of the flat plate to form a certain angle and an abutting plate connected with the flat plate and the inclined plate, the abutting plate abuts against one side of the sound production single body, and a sound absorption material layer is filled between the flat plate and the inclined plate. Compared with the prior art, the loudspeaker box provided by the invention has the advantages that the sound quality effect is improved, the performance is stable, and the sound production effect is good.

Description

technical field [0001] The invention relates to the field of electroacoustic conversion, in particular to a speaker box. Background technique [0002] With the advent of the mobile Internet era, smart mobile devices such as mobile phones, laptops, hearing aids, etc. emerge in an endless stream, and people have higher and higher functional requirements for them. Audio playback quality is one of their functional requirements, and the speaker box is One of the prerequisites for achieving this high-quality audio playback. [0003] Most of the existing speaker boxes use magnetic circuit system and vibration system to vibrate and produce sound. In order to pursue better low-frequency performance, sound-absorbing particles are filled in the rear cavity without changing the volume of the rear cavity. The sound-absorbing particles are porous. The dielectric material can increase the equivalent volume of the rear cavity, thereby reducing the lowest resonance frequency of the speaker ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/02H04R1/28G10K11/162
CPCH04R1/02H04R1/288G10K11/162
Inventor 陈恺琳
Owner 陈恺琳