Earphone Speaker Layout for High-Low Frequency Resonance
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Solution Overview
Problem
The conflict between high and low sound ranges in conventional earphones due to the installation positions of moving iron and moving coil units results in suboptimal sound pronunciation effects.
Innovation Solution
A speaker device design that incorporates both a moving iron assembly and a moving coil assembly on a coil iron support, with each assembly occupying different sides of the support, allowing for complementary high and low audio frequencies, and featuring a housing with a cavity to facilitate assembly and resonance of sound emissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If both moving iron unit and moving coil unit are used to expand sound range, then sound quality in high and low ranges is improved, but installation position conflict arises causing suboptimal pronunciation effect
Solution Approach 1:
The patent divides the sound generation function into two independent modules: moving iron unit for low frequencies and moving coil unit for high frequencies. Each module is independently installed on separate supporting portions of the coil iron support, avoiding interference between them while achieving comprehensive sound coverage.
Solution Approach 2:
The patent assigns different functional characteristics to different spatial locations: the moving iron unit is positioned to handle low frequency sounds while the moving coil unit is positioned for high frequency sounds. This local specialization resolves the conflict by ensuring each component operates in its optimal frequency range without interference.
2Adaptability or versatility
If moving iron unit and moving coil unit are installed to cover high and low sound ranges, then audio frequency breadth is improved, but actual pronunciation effect deteriorates due to spatial conflict
Solution Approach 1:
The patent segments the audio frequency handling into two distinct functional zones within the earphone cavity. The moving iron unit is dedicated to low frequencies while the moving coil unit handles high frequencies, allowing both units to operate independently without spatial interference and maintain optimal pronunciation effects.
Solution Approach 2:
The patent utilizes the vertical dimension by stacking the moving iron unit and moving coil unit on different vertical levels of the coil iron support. This dimensional arrangement allows both units to coexist without horizontal conflict, enabling comprehensive frequency coverage while maintaining optimal sound delivery for each frequency range.
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 sound quality by optimizing the resonance of high and low frequencies, simplifies assembly, and improves production and maintenance processes.
Implementation Method 1
a moving coil assembly comprising a voice diaphragm, a voice coil, a washer, and a magnet
Implementation Method 2
cause a voice diaphragm to vibrate, which in turn causes air in an earphone cavity to vibrate, thereby forming sound
Data Source
AI summary
A speaker device and an earphone include a housing, a coil iron support connected to the housing, a moving iron assembly, and a moving coil assembly. The moving iron assembly and the moving coil assembly are disposed on the coil iron support. A cavity is defined in the housing. A periphery of the coil iron support is embedded in the housing. The coil iron support includes a moving coil supporting portion and a moving iron supporting portion disposed on one side of the moving coil supporting portion. The moving iron assembly is partially disposed on the moving iron supporting portion. The moving coil assembly includes a voice diaphragm, a voice coil, a washer, and a magnet that are stacked in sequence. A periphery of the voice diaphragm is fixedly clamped with an inner side of the moving coil supporting portion.