Double-Sided Speaker Structure for Resonance Isolation
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Solution Overview
Problem
The resonance of existing speaker devices affects the vibration of the entire casing, leading to poor music playback performance.
Innovation Solution
A double-sided speaker device design featuring a magnetic element with a U-type structure, two diaphragms, and elastic elements connected to the magnetic element and outer frame, which absorb and balance vibrations to reduce resonance impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional speaker device is used, then the structure is simple, but the resonance affects the vibration of the entire casing leading to poor sound quality
Solution Approach 1:
The patent introduces a magnetic element as an intermediary component between the voice coil and the casing. This magnetic element absorbs and balances the vibration forces generated during speaker operation, preventing them from being transmitted to the outer frame and causing resonance. The magnetic element serves as a mediator that isolates the harmful vibrations from the casing while maintaining the functional connection between the voice coil and diaphragm.
Solution Approach 2:
The patent converts the harmful vibration forces into beneficial effects by utilizing the magnetic element to absorb and balance these vibrations. Instead of allowing the vibrations to cause resonance and degrade sound quality, the magnetic element harnesses these forces to enhance low-frequency sound production, turning a harmful factor into a beneficial feature for improving audio performance.
2Object-affected harmful factors
If vibration absorption structures are added to reduce resonance, then sound quality improves, but device complexity increases
Solution Approach 1:
The magnetic element performs multiple functions simultaneously: it generates the magnetic field necessary for voice coil operation, absorbs and balances vibration forces to reduce resonance, and enhances low-frequency sound production. By integrating these multiple functions into a single component, the patent avoids adding separate vibration absorption structures that would increase device complexity, thereby achieving resonance reduction without significantly complicating the overall structure.
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 reduces the impact of vibrations on the outer frame, enhancing low-frequency sound production and improving overall sound quality by absorbing and balancing vibrations.
Implementation Method 1
convert the vibrations of the current frequencies into sounds
Implementation Method 2
the vibration forces have been absorbed by the elastic element and the first diaphragm
Data Source
AI summary
A double-sided speaker device comprises that of: a magnetic element, having a magnetic carrier with two lateral walls and a bottom plate and a magnetic circuit module, the two lateral walls being at two sides of the bottom plate, the magnetic circuit module being on the bottom plate; an outer frame, disposed at a peripheral side of the magnetic element; a first diaphragm, disposed beneath the outer frame, an inner surface of the first diaphragm being adhered to a bottom surface of the bottom plate of the magnetic carrier; a second diaphragm, disposed on the outer frame and located above the magnetic element; two voice coils, disposed underneath the second diaphragm, wrapped around the magnetic element, and located between the magnetic circuit module and the two lateral walls; and two elastic elements, connected with the magnetic carrier and the outer frame, and disposed at two sides of the magnetic carrier.