Sound absorption assembly, sound production device and electronic equipment

CN119277249BActive Publication Date: 2026-06-19GOERTEK INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GOERTEK INC
Filing Date
2024-09-29
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

The sound-absorbing particles filling the rear cavity of existing loudspeakers are prone to breakage and dust shedding, which can contaminate the sound-producing unit and degrade low-frequency performance.

Method used

The shell, which is made of stacked fiber filaments, consists of a main body and a cover. The main body has a breaking strength of 10N-80N and an elongation at break of 1-60% to encapsulate the sound-absorbing particles and prevent them from breaking and becoming contaminated.

Benefits of technology

It effectively prevents sound-absorbing particles from breaking apart, avoids contaminating the sound-generating unit, improves low-frequency performance, and maintains good sound absorption and mechanical properties.

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Abstract

This invention discloses a sound-absorbing component, a sound-generating device, and an electronic device, relating to the field of acoustics. The sound-absorbing component includes a housing and sound-absorbing material filled within the housing. The housing includes a main body and a cover, with the main body defining an accommodating space. The sound-absorbing material is filled within the accommodating space and includes at least one of sound-absorbing particles and sound-absorbing powder. The sound-absorbing particles include multiple sound-absorbing powders and an adhesive that binds the multiple sound-absorbing powders together. The main body is formed into a porous structure composed of stacked fiber filaments. The tensile strength of the main body is 10N-80N, and the elongation at break is 1-60%. The housing of this invention effectively encapsulates the sound-absorbing material, and the main body has good tensile strength and elongation at break, making it less prone to breakage. This solves the problem of dust contamination caused by exposed sound-absorbing material and provides excellent acoustic improvement performance.
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Citation Information

Patent Citations

  • Loudspeaker system with improved sound

    CN103098490A

  • Packaging of acoustic volume increasing materials for loudspeaker devices

    CN105025414A

  • Nonwoven fabric and composite sound-absorbing material using same as skin material

    CN111527253A

  • Sound absorption material packaging structure and loudspeaker

    CN116567499A

  • Sound-absorbing assembly and loudspeaker module group having the same

    CN204498363U