A novel diaphragm structure and waterproof speaker

By employing an integrally molded, elastically deformable sealing part and contact protrusion design on the upper end of a ring-shaped rigid bracket in the speaker, water pressure is used to achieve a seal, solving the problems of waterproof membrane damage and bracket space occupation under high water pressure, thus achieving efficient waterproofing and space saving.

CN224460002UActive Publication Date: 2026-07-03FOSHAN SISHENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FOSHAN SISHENG TECH CO LTD
Filing Date
2025-08-15
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing loudspeakers are prone to damage to their waterproof membranes under high water pressure, resulting in poor waterproofing performance. Furthermore, the high-strength bracket occupies internal space in the loudspeaker, affecting other structural designs and making it susceptible to creep deformation.

Method used

The upper end of the ring-shaped rigid support is integrally formed with an elastically deformable sealing part, which uses water pressure to achieve sealing. Combined with the contact protrusion and platform design, the reliance on the support is reduced and creep deformation is avoided.

Benefits of technology

It improves waterproofing, saves internal space in the speaker, prevents creep and deformation of the bracket, and ensures sound quality and long-term waterproof performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a novel diaphragm structure and a waterproof speaker in the field of loudspeaker technology. The diaphragm structure includes an annular rigid support and a diaphragm. The diaphragm is injection molded onto the annular rigid support, and a groove is provided in the middle of the diaphragm. A deformable sealing portion is integrally formed on the upper end of the annular rigid support corresponding to the diaphragm. The diaphragm structure of this utility model does not rely on a high-strength support for support. The deformable sealing portion integrally formed on the upper end of the annular rigid support allows it to fully utilize the force of water pressure as support, ensuring a tight fit with the housing it is assembled with, thereby achieving a waterproof effect. The design of using water pressure to support the sealing portion means that the greater the water pressure, the greater the force exerted on the sealing portion, resulting in a tighter fit and better waterproof effect. Furthermore, the support is less prone to creep deformation, further ensuring the speaker's waterproof performance.
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