Irregular-Wall Speaker Box With Compensation Cavities
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Solution Overview
Problem
Conventional speaker boxes with regular appearances have a limited application range and are not suitable for speaker boxes with irregular shapes, restricting their adaptability to various electronic devices.
Innovation Solution
A speaker box design featuring an upper cover plate with irregularly shaped side walls and second lower cover plates that define compensation cavities, communicating with a back cavity, increasing overall space and improving low-frequency performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional regular-shaped speaker box structure is used, then manufacturing is simple, but adaptability to different electronic device shapes is poor
Solution Approach 1:
The speaker box is divided into multiple modular components: upper cover plate, first lower cover plate, and multiple second lower cover plates. This segmentation allows each module to be independently configured to match different electronic device shapes while maintaining a standardized assembly process, thereby improving adaptability without significantly increasing manufacturing complexity.
Solution Approach 2:
The upper cover plate with irregular side walls serves multiple functions: it provides structural support, defines the overall shape of the speaker box to match different electronic devices, and creates mounting spaces for additional components. This multi-functionality allows a single component design to adapt to various application scenarios.
2Adaptability or versatility
If regular-shaped speaker box is used, then design is simple, but application range is limited
Solution Approach 1:
The upper cover plate incorporates asymmetric irregular side walls instead of conventional symmetric rectangular shapes. This asymmetric design enables the speaker box to match the contours of different electronic devices (such as curved edges or irregular shapes) while the modular construction keeps manufacturing processes relatively simple.
3Reliability
If standard speaker box structure is used, then manufacturing cost is low, but low-frequency performance is insufficient
Solution Approach 1:
Multiple second lower cover plates are nested around the perimeter of the upper cover plate, creating additional compensation cavities that extend the back cavity volume. This nested arrangement efficiently increases the acoustic volume available for low-frequency resonance without significantly increasing the overall footprint of the speaker box.
Solution Approach 2:
The compensation cavities are created by adding depth in the vertical dimension through the nested lower cover plates, rather than expanding the back cavity horizontally. This dimensional approach increases the effective volume for acoustic resonance while maintaining a compact overall structure suitable for thin electronic devices.
Data Source
AI summary
A speaker box and an electronic device are disclosed. The speaker box includes an upper cover plate including side walls, a first lower cover plate, a speaker unit, a motor module, and second lower cover plates. The speaker unit divides an accommodating cavity defined by upper cover plate and first lower cover plate into front and back cavities. The second lower cover plates are assembled with the upper cover plate to define compensation cavities. A length of at least one of the side walls of the upper cover plate is greater than that of an orthographic projection thereof, so the speaker box is suitable for various electronic devices and has strong adaptability and wide application. The compensation cavities are communicated with the back cavity, which increases an overall space of the back cavity, improves low-frequency performance of the speaker unit, and improves sound production effect of the speaker unit.