Dual-Sounding Unit Speaker Module for Headset Frequency Range
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Solution Overview
Problem
Existing single-speaker headset designs struggle to achieve an ideal frequency range and sufficient loudness simultaneously, resulting in limited low-frequency playback and suboptimal sound quality.
Innovation Solution
The speaker module incorporates two sounding units and speaker holes on the same surface of the speaker housing, allowing for sound wave supplementation and superposition, which enhances the overall frequency range and loudness, particularly improving low-frequency playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single speaker is used in the headset, then the device complexity is reduced, but the frequency range and loudness cannot be achieved simultaneously
Solution Approach 1:
The single speaker is segmented into two independent sounding units (first sounding unit and second sounding unit), each capable of producing sound waves independently. This segmentation allows each unit to handle specific frequency ranges, thereby expanding the overall frequency range and loudness while maintaining manageable device complexity through modular design.
Solution Approach 2:
Two sounding units are merged into a single speaker module with integrated housing. The sound waves from both units superpose to enhance loudness and frequency range. The merging is achieved through shared structural elements (housing, accommodating cavity) while maintaining independent acoustic pathways (separate speaker holes), resolving the contradiction between complexity and performance.
2Device complexity
If a single speaker with limited performance is used, then the device structure is simple, but low-frequency playback requirement cannot be met
Solution Approach 1:
Different local regions of the speaker module are optimized for different frequency ranges. The first sounding unit and second sounding unit are positioned and configured to produce sound waves with complementary frequency characteristics, particularly enhancing low-frequency response. Each sounding unit has its own localized acoustic pathway through dedicated speaker holes, allowing targeted optimization for specific frequency ranges.
3Quantity of substance
If sound waves from multiple sounding units are superposed, then the frequency range and loudness are improved, but the speaker housing structure becomes more complex
Solution Approach 1:
The first sounding unit and second sounding unit are nested within a shared accommodating cavity in the speaker housing. The housing structure contains both units in a compact arrangement, with sound waves from both units traveling through the same general direction to achieve superposition. This nesting approach maximizes space utilization and enables sound wave superposition while controlling the overall structural complexity.
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
This configuration significantly improves the speaker's frequency range and loudness, enhancing low-frequency playback and overall sound quality, while also allowing for easier optimization of sound algorithms.
Implementation Method 1
supplements and superposes sound of the speaker module and improves the overall frequency range and the loudness of the speaker
Data Source
AI summary
A speaker module and a smart headset are provided. The speaker module includes a speaker housing, a first sounding unit, and a second sounding unit. An accommodating cavity is defined in the speaker housing, the accommodating cavity includes a first space and a second space. The first sounding unit is fixed in the accommodating cavity, the first sounding unit divides the first space into a first rear sound cavity and a first front sound cavity. The second sounding unit is fixed in the accommodating cavity, the second sounding unit divides the second space into a second rear sound cavity and a second front sound cavity. The speaker provides a first speaker hole and a second speaker hole defined on the same surface of the speaker housing, which supplements and superposes sound of the speaker module and further improves an overall frequency range and loudness of the speaker.