Thin Loudspeaker Dual-Chamber Block Wall Design
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Solution Overview
Problem
Conventional thin loudspeaker devices face limitations in generating sufficient volume due to the low operation power of flat drivers, and when multiple drivers are used, they interfere with each other, affecting sound quality.
Innovation Solution
A thin loudspeaker device design featuring a housing with two loudspeaker units separated by a block wall and chambers, where the units are electrically connected and the block wall forms a channel to prevent interference, along with sound absorbing material in the chambers to enhance sound quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If multiple flat drivers are disposed in the loudspeaker module to increase volume, then the volume generated by the overall loudspeaker module can be increased, but the drivers will interfere with each other due to being too close, and the sound quality is affected
Solution Approach 1:
The loudspeaker module is segmented into multiple independent chambers (first chamber and second chamber) separated by a block wall. Each chamber houses a flat driver, physically isolating them to prevent acoustic interference while maintaining individual operation. This segmentation allows multiple drivers to work simultaneously without mutual interference, resolving the contradiction between increased volume and sound quality.
2Volume of moving object
If a single flat driver is used in the loudspeaker module, then the device remains thin and portable, but the operation power is low and the volume that can be generated is limited
Solution Approach 1:
The patent transitions from a single-driver configuration to a multi-chamber configuration by adding the dimension of spatial separation through the block wall. This allows multiple flat drivers to be arranged in different chambers along the thickness direction, increasing the total acoustic output power while maintaining the thin profile of each individual driver and the overall device portability.
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 allows for increased volume generation while maintaining portability and improving sound quality by preventing driver interference and ensuring consistent resonance frequencies.
Implementation Method 1
a sound absorbing material, the sound absorbing material is disposed in the two chambers and located around the two loudspeaker units, and the sound absorbing material extends into the channel
Data Source
AI summary
A thin loudspeaker device includes a housing, a battery, and a loudspeaker module. The battery and the loudspeaker module are located in the housing. The loudspeaker module includes an inner shell, two loudspeaker units, and a block wall. The two loudspeaker units are located in the inner shell. The two loudspeaker units are electrically connected to the battery. The block wall is located between the two loudspeaker units. The inner shell and the block wall jointly form two chambers and a channel. The channel is communicated with the two chambers. The two loudspeaker units are respectively located in the two chambers.