Sound Isolation Window with Segmented Bars for Fan Noise
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Solution Overview
Problem
High-speed fans used for thermal dissipation in computer systems generate excessive noise, which affects the performance and integrity of hard disk drives, potentially leading to data loss.
Innovation Solution
A sound isolation window with a frame and sound blocking bars is implemented, where the bars are arranged in a stepped configuration to minimize noise transmission while allowing airflow, thereby reducing the impact of fan noise on hard disk operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If high revolution speed fan system is used for heat dissipation, then temperature control is improved, but noise and vibration increase
Solution Approach 1:
The window structure is segmented into multiple sound blocking bars arranged in parallel, creating multiple narrow gaps instead of one large opening. This segmentation allows the window to block low-frequency noise effectively while maintaining airflow for heat dissipation.
Solution Approach 2:
Different regions of the window have different properties: the sound blocking bars provide noise isolation in critical areas, while the gaps between bars maintain airflow channels for thermal dissipation. The window structure locally adapts to satisfy both noise reduction and heat dissipation requirements.
2Object-affected harmful factors
If sound blocking bars are added to reduce noise, then noise isolation is improved, but airflow for heat dissipation may be restricted
Solution Approach 1:
The window is divided into multiple sound blocking bars with narrow gaps between them. This segmentation creates numerous small airflow channels that collectively maintain sufficient airflow for heat dissipation while each individual bar provides effective noise blocking.
Solution Approach 2:
The window structure functions as a porous barrier with multiple narrow gaps between sound blocking bars. This porous configuration allows airflow to pass through while maintaining sound isolation, effectively balancing thermal dissipation and noise reduction requirements.
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 sound isolation window effectively reduces noise interference, protecting hard disk drives and maintaining the thermal dissipation function by guiding airflow through the gaps between the sound blocking bars, ensuring uninterrupted operation and data integrity.
Implementation Method 1
a sound isolation window includes a frame and a plurality of sound blocking bars
Implementation Method 2
allowing airflow, thereby reducing the impact of fan noise on hard disk operations
Data Source
AI summary
A sound isolation window includes a frame and a plurality of sound blocking bars. The frame has an upper frame portion and a lower frame portion. The frame further has a first sidewall and a second sidewall connected to the upper and lower frame portion. The upper frame portion, the lower frame portion, the first sidewall and the second sidewall form a first opening and an opposite second opening. Each sound blocking bar includes a plane perpendicular to the upper frame portion and the lower frame. The sound blocking bars are arranged along the first direction from the first opening to the second opening and spaced apart from each other. Projections along the first direction of the sound blocking bars over the first opening cover the first opening. The width of each sound blocking bar is less than one-half of the width of the first opening.