Double-Sided Speaker Interconnected Resonance Spaces
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Solution Overview
Problem
Double-sided speakers have poor sound quality due to non-interconnected resonance spaces, which cannot be improved without increasing the size of the speaker, making them unsuitable for thin electronic devices.
Innovation Solution
A double-sided speaker design featuring interconnected resonant cavities formed by a magnetic conductive carrying plate, auxiliary magnetic conductive member, side magnetic conductive member, magnetic circuit modules, and voice coils, allowing for enhanced sound quality without increasing the speaker's size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the resonance space is increased to improve sound quality, then the sound quality is improved, but the size of the speaker is increased
Solution Approach 1:
The patent implements nested resonance spaces where the first and second resonance spaces are arranged in an overlapping configuration. The first resonance space extends in a first direction while the second resonance space extends in a second direction perpendicular to the first, creating a three-dimensional nested structure that maximizes resonance volume within the constrained speaker thickness.
Solution Approach 2:
The patent transitions from traditional planar resonance space arrangement to a three-dimensional configuration by extending resonance spaces in multiple directions (first direction and second direction perpendicular thereto). This dimensional change allows the resonance spaces to interpenetrate and occupy different spatial zones, effectively increasing total resonance volume without increasing the speaker's external footprint.
2Device complexity
If two voice coils with common magnetic circuit module are used, then the speaker structure is simplified, but the sound quality deteriorates due to non-interconnected resonance spaces
Solution Approach 1:
The patent divides the magnetic circuit system into separate first and second magnetic circuit modules, each serving its own voice coil and resonance space. This segmentation allows independent optimization of each speaker unit's magnetic field and resonance characteristics, improving overall sound quality while maintaining a relatively simple dual-unit structure.
Solution Approach 2:
The patent merges the first and second resonance spaces through their three-dimensional overlapping arrangement, creating interconnected acoustic environments despite the separate magnetic circuit modules. This merging of resonance spaces allows acoustic interaction between the two speaker units, improving sound quality while maintaining structural simplicity.
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 effectively improves sound quality by enlarging the resonant cavity size without upsizing the speaker, enhancing stereo resonance and performance.
Implementation Method 1
a first voice coil, a second voice coil, a first vibrating component, and a second vibrating component. The first voice coil is disposed between the first magnetic circuit module, the sidewall, and the auxiliary magnetic conductive member. The second voice coil is disposed between the second magnetic circuit module and the side magnetic conductive member.
Implementation Method 2
a first magnetic circuit module, a second magnetic circuit module... Wherein the overall heights of the sidewall and the auxiliary magnetic conductive member is greater than or equal to the overall height of the first magnetic circuit module and/or the second magnetic circuit module.
Implementation Method 3
The first accommodating space is communicating with the second accommodating space... The design effectively improves sound quality by enlarging the resonant cavity size without upsizing the speaker, enhancing stereo resonance and performance.
Data Source
AI summary
A double-sided speaker, comprising a magnetic conductive carrying plate, an auxiliary magnetic conductive member, a side magnetic conductive member, a first magnetic circuit module, a second magnetic circuit module, a first voice coil, a second voice coil, a first vibrating component, and a second vibrating component. The magnetic conductive carrying plate comprises a sidewall and a bottom plate. One side surface of the bottom plate comprises a first side edge and a second side edge opposite to the first side edge. The sidewall is disposed at the first side edge. The auxiliary magnetic conductive member is assembled to the second side edge. The side magnetic conductive member is disposed at a side edge of another side surface of the bottom plate. The first magnetic circuit module is disposed at one side of the magnetic conductive carrying plate, of which the second magnetic circuit module is disposed at another side.