Sound box, multimedia equipment and electronic device

By introducing an opening and closing structure into the speaker, acoustic adaptation of the speaker is achieved in both standalone and integrated scenarios, solving the problems of low speaker utilization and poor audio effect, and improving the speaker's functional integration and practicality.

CN121751047APending Publication Date: 2026-03-27BYD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-25
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

The existing speakers have low utilization rates, cannot be used independently, and have poor audio quality when used outside the vehicle, increasing the cost for users to purchase multiple devices.

Method used

A speaker has been designed, comprising a shell, an opening and closing mechanism, and a speaker unit. The opening and closing mechanism closes the connection port when used independently, and opens the connection port when mounted on an external device to increase the sound cavity volume and improve the audio effect.

Benefits of technology

It can effectively protect the speaker's internal components in both standalone and integrated use scenarios, improve sound quality and durability, enhance low-frequency sound wave radiation efficiency, improve overall sound effects, and reduce the need for additional structural modifications.

✦ Generated by Eureka AI based on patent content.

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Abstract

According to the sound box, the multimedia equipment and the electronic device disclosed by the invention, when the sound box is independently used, the opening and closing mechanism closes the communication port, so that external environmental factors such as dust and water vapor can be effectively prevented from invading into the shell, and the loudspeaker unit and an internal circuit are prevented from being affected with damp or accumulated. When the sound box is carried on an external electronic device (such as a vehicle), the opening and closing mechanism opens the communication port, so that an internal sound cavity of the sound box is communicated with an external device space, and an expanded acoustic resonance structure is formed. By increasing the volume of the effective sound cavity, the radiation efficiency of low-frequency sound waves can be remarkably enhanced, the low-frequency response characteristic is improved, and the layering sense and the dynamic range of the overall sound quality are improved. The switchable design of the opening and closing mechanism enables the sound box to meet the requirements of two scenes of independent use and external carrying, the adaptation of different acoustic characteristics can be realized without additional structural change, and the function integration and practicability of the sound box are improved.
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