Baffle Structure for Vibrational and Acoustic Damping
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Solution Overview
Problem
As information handling systems generate increasing amounts of heat due to higher clock speeds and power consumption, cooling requirements rise, leading to elevated vibrational and acoustical noise, which can be detrimental to components like hard disk drives, necessitating effective noise reduction solutions.
Innovation Solution
An acoustical/vibrational noise reduction system is integrated within the chassis, comprising parallel divider walls and perpendicular baffle fins, mechanically coupled to block noise transmission and absorb energy, thereby reducing vibrational and acoustical noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If air movers operate at increasing speeds to meet cooling requirements, then cooling effectiveness is improved, but vibrational and acoustical noise increases
Solution Approach 1:
The patent introduces a noise reduction system with divider walls and baffle fins as an intermediary structure between the air mover and sensitive components. This mediator blocks and absorbs vibrational and acoustical energy transmitted by the air mover, protecting hard disk drives and other sensitive components from harmful vibrations while allowing the air mover to operate at high speeds for effective cooling
Solution Approach 2:
The patent converts the harmful vibrational and acoustical energy generated by the air mover into beneficial thermal energy through vibration isolation elements and absorbing materials. The vibrational energy is transformed into heat within the damping materials, converting a harmful effect into a harmless or even beneficial thermal effect that does not interfere with system operation
2Adaptability or versatility
If more features are packed into information handling systems, then system functionality is improved, but cooling requirements and associated noise increase
Solution Approach 1:
The noise reduction system is segmented into multiple functional components: divider walls that partition the chassis into zones, baffle fins that block sound transmission paths, and vibration isolation elements that dampen specific frequency ranges. This segmentation allows the system to address multiple noise transmission pathways simultaneously while maintaining system functionality
3Object-generated harmful factors
If traditional noise reduction methods are used, then some noise mitigation is achieved, but they interfere with airflow and cooling effectiveness
Solution Approach 1:
The patent applies different structural qualities to different regions of the noise reduction system. Divider walls are positioned to block noise transmission while leaving airflow passages open. Baffle fins are configured with specific spacing and orientations that block acoustic waves at certain frequencies while permitting air flow. This local differentiation of structural properties enables simultaneous noise reduction and effective cooling
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 solution effectively minimizes vibrational and acoustical noise by redirecting and absorbing energy, thereby protecting sensitive components and improving system stability and performance.
Implementation Method 1
vibrational and acoustical damping with baffle structure
Implementation Method 2
acoustical/vibrational noise reduction system
Data Source
AI summary
An acoustical/vibrational noise reduction system may include a plurality of divider walls spaced from each other, generally parallel to each other, and generally parallel to a direction of transmission of acoustical and vibrational noise from a source of acoustical and vibrational energy and an information handling resource. The acoustical/vibrational noise reduction system may also include a plurality of baffle fins mechanically coupled to the plurality of divider walls, generally perpendicular to the plurality of divider walls, and substantially non-parallel to the direction of transmission of acoustical and vibrational noise from the source of acoustical and vibrational energy and the information handling resource.