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Sound box capable of enhancing low frequency

A speaker and low-frequency technology, applied in the field of multimedia audio equipment, to achieve the effect of increasing the effective volume, improving the low-frequency bandwidth, and improving the sound quality

Active Publication Date: 2018-06-08
SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a sound-absorbing sound box that can enhance the low frequency, so as to solve the technical problem of improving the low frequency bandwidth in a limited space

Method used

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  • Sound box capable of enhancing low frequency
  • Sound box capable of enhancing low frequency
  • Sound box capable of enhancing low frequency

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Embodiment Construction

[0019] The present invention will be described in detail below with a specific embodiment in conjunction with the accompanying drawings.

[0020] Such as image 3 As shown, the present invention provides a sound box capable of enhancing low frequency, which is mainly used in electronic products, including a housing, a loudspeaker 2 and a sound-absorbing structure, wherein the housing includes a front shell 11 and a rear shell 12, and the front shell 11 is connected to the rear shell respectively. 12. The speaker 2 is connected by a sealant to form a sealing layer 13 . The front shell 11 , the rear shell 12 and the speaker 2 jointly form a sealed cavity 5 . The volume of the sealed cavity 5 directly affects the effective low-frequency playback bandwidth of the speaker 2, so a sound-absorbing structure is provided on the inner wall of the housing to absorb sound waves and increase the effective volume of the sealed cavity 5.

[0021] The sound-absorbing structure can be arrang...

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Abstract

The invention provides a sound box capable of enhancing low frequency, the sound box comprises a shell and a loudspeaker arranged on the shell, the shell and the loudspeaker form a sealed cavity, andan inner wall of the shell is provided with a sound absorption structure for absorbing sound waves. The sound absorption structure comprises a multi-reflecting surface column and a porous membrane, the porous membrane is arranged on the shell and the porous membrane and the shell form a reflecting cavity, and the multi-reflecting surface column is formed in the reflecting cavity. According to thesound box provided by the invention, the inner wall of the shell is provided with the porous membrane and the multi-reflecting surface column, a part of the sound waves enter into the reflecting cavity via through holes of the porous membrane and consume energy through being reflected by the multi-reflecting surface column, thus, the sound waves directly reflected back are reduced, effective volume of the sealed cavity is increased consequently, low frequency bandwidth is improved, and tone quality is promoted.

Description

technical field [0001] The invention relates to the technical field of multimedia audio equipment, in particular to a sound box with better bass effect. Background technique [0002] Sound-absorbing cotton will be added inside the existing speaker box to improve the low frequency of the speaker system and eliminate resonance. The miniature speaker box in electronic products also follows this design form. Such as figure 1 As shown, the whole product design is composed of speaker box 2, front shell 11 and rear shell 12. Due to the power limitation of electronic products, the low frequency of this type of miniature speaker box cannot be made too low. If there is enough space, you can choose not to add sound-absorbing cotton to improve the low frequency, but in most cases, due to the structural limitations of electronic products, the size of the entire speaker box becomes very small, and the size of the box directly affects the effective low frequency of the speaker. Replay ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/28
CPCH04R1/2803H04R1/2869
Inventor 李立忠梁国华满方明许王华杨晓明江戈波
Owner SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD