Loudspeaker module

By using a breathable insulating mesh to divide the rear cavity into a filling cavity and an air cavity in the speaker module, and using the air extraction hole to form a negative pressure for filling Bass powder, the problem of insufficient low frequency and difficulty in filling powder caused by the small volume of the rear cavity of the speaker module is solved, achieving efficient and convenient powder filling and low frequency performance improvement.

CN224481799UActive Publication Date: 2026-07-10SHENZHEN SUNWAY ACOUSTICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN SUNWAY ACOUSTICS TECH CO LTD
Filing Date
2025-08-07
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

The reduced volume of the rear cavity of the speaker module leads to insufficient low-frequency sensitivity, the filling of bass powder is difficult and it is easy to accumulate, and the traditional vibration method is time-consuming.

Method used

The rear cavity is divided into a filling cavity and an air cavity using a breathable insulating mesh. During powder filling, a negative pressure is created using the air extraction hole, allowing the Bass powder to be smoothly poured into the filling cavity under the action of gravity and airflow, avoiding accumulation.

Benefits of technology

It improves the efficiency and convenience of Bass powder filling, ensures greater powder filling, improves low-frequency performance, eliminates the need for module angle adjustment and additional processing, and simplifies the manufacturing process.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224481799U_ABST
    Figure CN224481799U_ABST
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Abstract

The utility model discloses a loudspeaker module, including loudspeaker single body, module shell and breathable isolation screen cloth, and the loudspeaker single body is located in the module shell, and the module shell is surrounded with the loudspeaker single body and forms the back cavity, is equipped with respectively fills the powder port and the air hole on the module shell, the breathable isolation screen cloth is located in the back cavity, and the back cavity is divided into the filling cavity and the air cavity with the breathable isolation screen cloth, and the powder port is connected with the filling cavity and the outside, and the air hole is connected with the air cavity and the outside. When filling, the air hole is connected with the negative pressure air nozzle, and the air cavity forms the negative pressure, under the joint action of the airflow traction and gravity, and the bass powder is smoothly inhaled into the filling cavity, and the powder arrangement is more compact, and the same space can be filled into more powder volume, and effectively avoid the hanging powder and the accumulation phenomenon at the powder filling port. This process does not need to adjust the loudspeaker module angle, and fills the one-time completion, and the efficiency and the convenience are improved obviously, and after the manufacture is completed, the air hole can be directly reused as the leak hole, and does not need the additional processing.
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