Double Sided Speaker with Carrier Board Openings
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Solution Overview
Problem
Conventional double-sided speaker devices have poor tone quality due to non-communicating resonance spaces, which cannot be improved without increasing the device size.
Innovation Solution
A double-sided speaker device design featuring a magnetic conductive carrier board with openings connecting two resonant cavities, allowing the first and second voice coils to work with their respective magnetic circuit modules, thereby enhancing the resonant cavity capacity without increasing the device size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the resonance space is enlarged to enhance tone quality, then the tone quality is improved, but the size of the speaker device increases
Solution Approach 1:
The patent applies the nesting principle by placing the second resonant cavity inside the first resonant cavity through the magnetic conductive carrier board with openings. The second voice coil and second magnetic circuit module are positioned within the space defined by the first resonant cavity, allowing both cavities to coexist in a compact configuration. This nested arrangement enables the resonance space to be effectively enlarged without proportionally increasing the external dimensions of the speaker device, thus improving tone quality while maintaining a compact size suitable for thin electronic devices.
2Adaptability or versatility
If two resonance spaces are partitioned to accommodate two voice coils, then double sided speaking is achieved, but the tone quality deteriorates due to lack of communication between spaces
Solution Approach 1:
The patent applies the intermediary principle by introducing the magnetic conductive carrier board with openings as a mediator between the first and second resonant cavities. The openings in the magnetic conductive carrier board act as communication channels that allow acoustic energy to pass between the two resonance spaces. This intermediary structure enables the two voice coils to operate independently for double-sided speaking while also allowing the resonance spaces to communicate, thereby improving tone quality through enhanced acoustic coupling.
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 connected resonant cavities improve the tone quality of the double-sided speaker device without enlarging its size, achieving enhanced stereo sounding performance.
Implementation Method 1
The first voice coil works on the first magnetic circuit module and the second voice coil works on the second magnetic circuit module for realizing double side speaking
Implementation Method 2
The first accommodating space and the second accommodating space play as the two resonant cavities for the double sided speaker device
Data Source
AI summary
A double sided speaker device, comprising a magnetic conductive carrier board, a first magnetic circuit module, a second magnetic circuit module, a first voice coil, a second voice coil, a first sounding hood, and a second sounding hood. The magnetic conductive carrier board comprises a plurality of openings. The first magnetic circuit module is disposed at one side of the magnetic conductive carrier board. The second magnetic circuit module is disposed at the other side of the magnetic conductive carrier board. The first voice coil is disposed around the first magnetic circuit module. The second voice coil is disposed around the second magnetic circuit module. The first sounding hood is disposed at one side of the magnetic conductive carrier board and comprises a first accommodating space. The second sounding hood is disposed at the other side of the magnetic conductive carrier board and comprises a second accommodating space.