Speaker Box With Irregular Side Walls and Compensation Cavities
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Solution Overview
Problem
Conventional speaker box structures are not suitable for irregularly shaped devices, limiting their adaptability and sound production effectiveness, particularly in low-frequency performance.
Innovation Solution
A speaker box design featuring an upper cover plate with irregularly shaped side walls, a single metal sheet lower cover plate, and compensation cavities that increase the rear cavity size, accommodating a motor module and speaker unit, allowing for flexible adaptation to various device shapes and enhancing low-frequency sound production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional regular speaker box structures are used, then manufacturing is simple, but adaptability to irregularly shaped devices is poor
Solution Approach 1:
The speaker box is divided into multiple components: upper cover plate, lower cover plate, speaker unit, and motor module. The upper cover plate includes a top wall and side walls that can be separately configured to match irregular device shapes, while the lower cover plate provides a stable base. This segmentation allows each component to be optimized independently for both adaptability and manufacturing simplicity.
Solution Approach 2:
The upper cover plate is designed with asymmetric side walls where the length of at least one side wall extends beyond its orthographic projection, creating an irregular shape that adapts to non-standard device forms. This asymmetric design enables the speaker box to fit irregularly shaped electronic devices while maintaining structural integrity and ease of assembly.
2Reliability
If standard cavity designs are used, then manufacturing is easy, but low-frequency sound production is insufficient
Solution Approach 1:
The compensation cavities are integrated within the structure formed by the upper and lower cover plates, nesting additional acoustic volume within the existing speaker box framework. The edge areas of the cover plates define compensation cavities that are communicated with the rear cavity, effectively increasing the acoustic chamber volume without significantly increasing external dimensions or manufacturing complexity.
Solution Approach 2:
The compensation cavities utilize the vertical and lateral spaces between the upper and lower cover plates, creating additional acoustic volume in dimensions that do not increase the overall footprint of the speaker box. This dimensional optimization allows for enhanced low-frequency response while maintaining a compact form factor suitable for various device integrations.
Data Source
AI summary
A speaker box includes an upper cover plate, a lower cover plate, a speaker unit, and a motor module. The lower cover plate is assembled with the upper cover plate to define an accommodating cavity for accommodating the speaker unit and the motor module. The speaker unit divides the accommodating cavity into a front cavity and a rear cavity. The motor module is disposed on one side of the speaker unit. The upper cover plate includes a top wall and side walls. A length of at least one of the side walls is greater than a length of an orthographic projection thereof. Edge areas of the upper cover plate and edge areas of the lower cover plate are assembled to define compensation cavities. The lower cover plate is of a single metal sheet structure. Therefore, low-frequency performance of the speaker box is improved.