Double-Sided Speaker Interconnected Resonance Cavity
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Solution Overview
Problem
Double-sided speakers typically have poor sound quality due to the lack of interconnection between the two resonance spaces, and increasing the resonance space would require larger size, which is not suitable for thin electronic devices.
Innovation Solution
A double-sided speaker design that includes a magnetic conductive carrying plate with two sidewalls and a bottom plate, two magnetic circuit modules, two voice coils, and two vibrating components. The first and second vibrating components have interconnected accommodating spaces, allowing for enhanced resonance without increasing the overall size of the speaker.
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 merges the two resonance spaces into a unified structure where they are interconnected through a shared cavity formed by the magnetic conductive carrying plate. This allows the resonance spaces to function together as a combined acoustic system, improving sound quality without requiring separate, larger spaces for each side.
Solution Approach 2:
The patent utilizes the thickness dimension of the speaker by creating a multi-layered magnetic conductive carrying plate structure with through-holes that connect the front and rear resonance spaces. This vertical integration allows for enhanced resonance volume without increasing the horizontal footprint of the speaker.
2Reliability
If the resonance space is increased to improve sound quality, then the sound quality is improved, but the speaker becomes unsuitable for thin electronic devices
Solution Approach 1:
The patent embeds the magnetic conductive carrying plate with integrated resonance cavities within the thin profile of the speaker assembly. The through-holes and interconnected spaces are nested within the existing structural thickness, allowing enhanced acoustic performance without increasing the overall device thickness.
3Device complexity
If two voice coils with a common magnetic circuit module are used, then the structure is simplified, but the resonance spaces become disconnected and sound quality deteriorates
Solution Approach 1:
The magnetic conductive carrying plate serves as an intermediary structure that physically connects the two resonance spaces through its through-holes. This mediator allows acoustic energy to transfer between the front and rear spaces while maintaining the simplified dual voice coil configuration with common magnetic circuit module.
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 design effectively improves the sound quality of double-sided speakers by enlarging the resonant cavity without increasing the size of the speaker, making it suitable for thin electronic devices.
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 and the sidewall. The second voice coil is disposed between the second magnetic circuit module and the side magnetic conductive member
Implementation Method 2
The second accommodating space is communicating with the first accommodating space... effectively improves the sounding quality of the double-sided speaker by enlarging the resonance space
Data Source
AI summary
A double-sided speaker, comprising a combination of magnetic conductive carrying plate with a side magnetic conductive member (or a magnetic conductive carrying plate component), 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 two sidewalls and a bottom plate. The two sidewalls are disposed at two side edges of a side surface of the bottom plate. The side magnetic conductive member is disposed on two side edges of another side surface of the bottom plate. The first magnetic circuit module is disposed at one side of the magnetic conductive carrying plate. The second magnetic circuit module is disposed at another side of the magnetic conductive carrying plate. The first voice coil is disposed between the first magnetic circuit module and the sidewall.