Multi-Stage Vibration Damping Bracket for Hard Disk Protection
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Solution Overview
Problem
Mechanical hard disks in electronic devices are sensitive to vibrations, which can cause damage and data loss, and existing shock dampers like steel wire rope shock dampers are expensive, heavy, and require large mounting spaces, limiting their wide-range use.
Innovation Solution
A vibration damping bracket with a multi-level vibration absorption system using a metal elastic part for high-frequency absorption and a rubber elastic part for low-frequency absorption, connected through a series of bracket bodies and damping components to effectively dampen vibrations across different frequencies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If steel wire rope shock damper is used to reduce vibration strength, then vibration damping performance is improved, but cost, weight, and mounting space increase
Solution Approach 1:
The shock damping function is divided into multiple independent levels: the first vibration damping component (metal elastic part) handles high-frequency vibrations, while the second vibration damping component (rubber elastic part) handles low-frequency vibrations. This segmentation allows each component to be optimized for specific frequency ranges, achieving comprehensive vibration protection without requiring a single heavy-duty damper.
Solution Approach 2:
The patent changes the material parameters by using different elastic materials with distinct frequency response characteristics. The metal elastic part is designed for high-frequency response (≥500 Hz) while the rubber elastic part is designed for low-frequency response (<500 Hz). This parameter differentiation enables effective vibration damping across the entire frequency spectrum using lightweight components.
2Reliability
If steel wire rope shock damper is used to reduce vibration strength, then vibration damping performance is improved, but mounting space requirement increases
Solution Approach 1:
The second vibration damping component (rubber elastic part) is nested within or between the bracket bodies that are already supported by the first vibration damping component. This nested arrangement allows the multi-level damping system to be compact, with components utilizing the same mounting footprint rather than requiring additional space for each damping level.
Solution Approach 2:
The patent merges the vibration damping functions into a single integrated bracket assembly where the first and second vibration damping components work together in one compact structure. This combination achieves comprehensive vibration protection without requiring separate dampers for different frequency ranges, thus reducing total mounting space.
3Device complexity
If single-level vibration damping is used, then device complexity is reduced, but vibration absorption effectiveness across wide frequency range is insufficient
Solution Approach 1:
The patent uses composite damping materials with different elastic properties: a metal elastic part for high-frequency damping and a rubber elastic part for low-frequency damping. This composite approach combines materials with complementary characteristics to achieve broad-spectrum vibration absorption, where each material contributes its optimal frequency range to the overall damping performance.
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 vibration damping bracket provides a cost-effective and space-efficient solution for reducing vibration transmission to sensitive electronic components, ensuring normal operation and preventing data loss by effectively absorbing vibrations across a wide range of frequencies.
Implementation Method 1
the first vibration damping component includes a metal elastic part configured to absorb vibration with a high frequency (for example, at least 500 Hz)
Implementation Method 2
the second vibration damping component includes a rubber elastic part configured to absorb vibration with a low frequency (for example, below 500 Hz)
Data Source
AI summary
One example vibration damping bracket provided in some embodiments of this application includes a fastening bracket, a first bracket body, a second bracket body, a first vibration damping component, and a second vibration damping component. The first bracket body is elastically connected to the fastening bracket by using the first vibration damping component. The second bracket body is elastically connected to the first bracket body by using the second vibration damping component. The first vibration damping component includes a metal elastic part configured to absorb vibration, and the second vibration damping component includes a rubber elastic part configured to absorb vibration.