Resonance Chamber Noise Absorption in Electronic Devices
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Solution Overview
Problem
Electronic devices, such as computers, generate noise from components like fans and hard disks due to their operating mechanisms, affecting user experience and comfort.
Innovation Solution
An electronic device design featuring a resonance cover and casing that forms a resonance chamber with openings, where the diameter of each opening is tailored to specific audio frequencies generated by components, utilizing the Helmholtz principle to absorb sound energy and reduce noise through resonance matching.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If fans and hard disks operate at high speed to improve computing performance, then productivity increases, but noise generation increases
Solution Approach 1:
The patent applies Helmholtz resonance chambers that convert the harmful noise frequencies generated by fans and hard disks into beneficial sound absorption. By designing openings with specific diameters that match the resonant frequencies of the noise sources, the system transforms the problematic sound waves into energy that is dissipated within the resonance chambers, effectively reducing the perceived noise while maintaining high-speed operation.
Solution Approach 2:
The patent changes the physical parameters of the casing by incorporating resonance chambers with specifically calculated opening diameters. These parameter changes are based on the resonant frequency formula for Helmholtz resonators, where the opening diameter is directly related to the target audio frequency. This allows targeted noise reduction at specific frequencies generated by different electronic components without affecting their operational performance.
2Object-generated harmful factors
If resonance chambers with specific opening diameters are designed to reduce noise at specific frequencies, then noise reduction effectiveness improves, but device complexity increases
Solution Approach 1:
The resonance chambers serve multiple functions simultaneously: they act as noise reduction devices for specific frequencies, while also serving as part of the overall casing structure. The chambers can be integrated into existing casing designs without requiring completely separate noise control components, thus reducing the net increase in device complexity while achieving targeted noise reduction.
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 absorbs sound energy at specific frequencies, reducing noise generated by electronic components and enhancing user auditory experience and comfort.
Implementation Method 1
the electronic device of the invention can consume sound energy via the Helmholtz principle which is that the resonance is generated when the natural frequency of the empty chamber is the same as the frequency of external sound wave
Data Source
AI summary
An electronic device is provided. The electronic device includes a casing, a resonance cover, and a plurality of electronic components. The resonance cover covers a part of the casing so as to define a resonance chamber with the casing. The resonance chamber includes a plurality of openings. The electronic components are disposed in the casing and adapted to generate a plurality of audio frequencies, wherein a diameter of each of the openings is related to the corresponding audio frequency generated by the corresponding electronic component.