Four-Assembly Speaker Module Layout for Vibration Cancellation
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Solution Overview
Problem
Existing speaker modules generate unnecessary vibrations when emitting sound, causing noise and affecting sound performance by contacting the housing of electronic devices.
Innovation Solution
A speaker module design featuring four symmetrical speaker assemblies arranged along perpendicular axes with balanced electromagnetic driving forces, utilizing an H-shaped metal base and insert molding technology to minimize vibration, ensuring the base remains stationary during sound emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single speaker assembly is used, then the device structure is simple, but vibration is generated causing noise and affecting sound performance
Solution Approach 1:
The patent combines multiple speaker assemblies (first, second, third, and fourth speaker assemblies) into a single integrated speaker module. These assemblies are arranged symmetrically around a central axis, with their vibration directions coordinated to counterbalance each other, thereby reducing overall vibration and noise while maintaining relatively simple device structure.
Solution Approach 2:
The patent employs speaker assemblies arranged in a counterbalancing configuration where the vibration forces generated by each assembly oppose each other. The first and second speaker assemblies are positioned to counterbalance along one axis, while the third and fourth speaker assemblies counterbalance along another axis, effectively canceling out harmful vibrations.
2Object-affected harmful factors
If multiple speaker assemblies are arranged to reduce vibration, then vibration is reduced, but the device complexity increases
Solution Approach 1:
While the overall arrangement exhibits symmetry for balance, the patent employs asymmetric positioning strategies within constraints. The speaker assemblies are arranged at specific angles and positions around the central axis that optimize vibration cancellation while considering manufacturing and spatial constraints, achieving a balance between symmetry for balance and asymmetry for optimization.
Solution Approach 2:
Each speaker assembly in the multi-assembly configuration serves dual functions: it contributes to the overall sound output and simultaneously acts as a counterbalancing element to reduce vibration. This multi-functionality allows the system to achieve vibration reduction without proportionally increasing device complexity.
3Stability of the object's composition
If speaker assemblies are arranged along perpendicular axes, then vibration balance is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent divides the speaker module into distinct functional segments: speaker assemblies arranged along a first axis and speaker assemblies arranged along a second axis perpendicular to the first. This segmentation allows for modular manufacturing and assembly, where each axis configuration can be produced and tested independently before final integration, reducing overall manufacturing complexity.
Solution Approach 2:
The patent transitions from a single-axis linear arrangement to a multi-dimensional spatial configuration with assemblies arranged along perpendicular axes. This dimensional expansion enables vibration balance in multiple directions simultaneously, achieving superior vibration stability while maintaining manageable manufacturing complexity through systematic spatial organization.
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
Reduces vibration displacement by approximately 99%, enhances sound output volume and frequency range, and maintains sound quality without causing device noise.
Implementation Method 1
the first coil and the second coil are respectively connected to drive the first diaphragm and the second diaphragm to vibrate
Implementation Method 2
the third coil and the fourth coil are respectively connected to drive the third diaphragm and the fourth diaphragm to vibrate
Implementation Method 3
the first speaker assembly and the second speaker assembly have the same size, material, and parameters... the first electromagnetic driving force and the second electromagnetic driving force that drive the first diaphragm and the second diaphragm to vibrate are of the same magnitude but opposite directions
Data Source
AI summary
A speaker module includes a base, a first speaker assembly, a second speaker assembly, a third speaker assembly, and a fourth speaker assembly. The first speaker assembly is disposed on the base. The second speaker assembly is disposed on the base and is symmetrical to the first speaker assembly. The third speaker assembly is disposed on the base. The fourth speaker assembly is disposed on the base and is symmetrical to the third speaker assembly. The first speaker assembly and the second speaker assembly are arranged along a first axis, the third speaker assembly and the fourth speaker assembly are arranged along a second axis, and the first axis is perpendicular to the second axis.