Speaker Box Irregular Side Walls for Low-Frequency Performance
Find Innovative SolutionsGenerate Solutions
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, which creates compensation cavities when assembled with a lower cover plate, increasing the rear cavity size and improving low-frequency performance by accommodating a motor module and speaker unit in a customizable, ultrasonically welded structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional regular speaker box structures are used, then manufacturing is simple and reliable, but adaptability to irregularly shaped electronic devices is poor
Solution Approach 1:
The upper cover plate is designed with asymmetric side walls where at least one side wall has a length greater than its orthographic projection, creating an irregular shape that adapts to different electronic device forms while maintaining structural integrity
Solution Approach 2:
The speaker box is divided into modular components including the upper cover plate, lower cover plate, speaker unit, and motor module, allowing independent optimization of each component while maintaining overall adaptability
2Reliability
If conventional sealing methods with glue are used, then assembly is simple, but sealing reliability for irregular shapes is insufficient
Solution Approach 1:
The sealing function is merged into the structural design of the cover plates themselves through the irregular side wall configuration, which inherently creates sealing surfaces that adapt to the shape requirements without requiring additional sealing materials or complex assembly steps
3Shape
If regular speaker box structures are used, then low-frequency performance is limited, but increasing rear cavity size typically increases overall device size
Solution Approach 1:
The irregular side wall design extends the rear cavity volume in non-uniform directions, utilizing three-dimensional space more efficiently to increase effective acoustic volume without proportionally increasing the overall bounding box dimensions of the speaker box
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design enhances adaptability to various electronic device shapes and improves sound production by increasing the rear cavity size, thereby enhancing low-frequency performance and overall sound quality.
Implementation Method 1
The lower cover plate is fixed to the upper cover plate through ultrasonic welding
Data Source
AI summary
A speaker box and an electronic device include an upper cover plate, a lower cover plate, a speaker unit, and a motor module. The speaker box 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, distal from the upper cover plate, 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 of the upper cover plate is greater than a length of orthographic projection of the at least one of the side walls thereof. Edge areas of the upper cover plate and edge areas of the lower cover plate are assembled to define compensation cavities. Therefore, low-frequency performance of the speaker box is improved.