Flexible Backplane With Spring-Isolated Connector Islands
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Solution Overview
Problem
In data storage systems, vibrations from hard disk drives can interfere with operations and cause performance degradation or damage, especially when multiple drives are housed in close proximity, leading to a need for effective vibration isolation.
Innovation Solution
A backplane with a flexible substrate and connector island assemblies, where each connector island is connected to the substrate via a spring element, allowing independent flexure and vibration isolation, along with a travel limiter assembly to manage displacement and reduce vibration transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple hard disk drives are housed in close proximity within a container, then storage capacity increases, but vibration transmission between drives increases causing performance degradation
Solution Approach 1:
The backplane is segmented into multiple independent connector island assemblies, each capable of independent flexure. This segmentation allows each connector island to isolate vibrations locally, preventing vibration transmission between adjacent hard disk drives while maintaining high storage capacity through dense component arrangement.
Solution Approach 2:
Spring elements are introduced as intermediary components between the connector islands and the main backplane substrate. These spring elements act as vibration isolators, absorbing and dampening vibrations before they can transmit to adjacent components, thereby protecting hard disk drives from vibration-induced performance degradation.
2Stability of the object's composition
If a rigid backplane structure is used to support multiple electrical components, then structural stability is improved, but vibration isolation between components deteriorates
Solution Approach 1:
The backplane employs local quality variation by making the substrate at least partially flexible rather than uniformly rigid. This allows specific regions (connector islands) to exhibit flexibility for vibration isolation while maintaining overall structural stability through the controlled flexibility of the substrate material and spring element design.
Solution Approach 2:
The connector islands are designed to flex independently through spring elements, introducing dynamic behavior to an otherwise static structure. This dynamic capability allows the backplane to adapt to vibrations by allowing controlled movement and flexure, thereby isolating components from harmful vibrations while maintaining structural integrity.
3Ease of manufacture
If connector islands are rigidly connected to the substrate, then manufacturing simplicity is improved, but independent flexure capability is lost
Solution Approach 1:
The manufacturing process segments the backplane into distinct components (substrate, spring elements, connector islands) that can be manufactured separately and then assembled. This segmentation enables each component to be optimized independently while maintaining manufacturing feasibility through standard fabrication techniques for flexible substrates and spring elements.
Solution Approach 2:
The backplane utilizes composite construction combining flexible substrate material with spring element components. This composite approach achieves the desired independent flexure capability by integrating materials with different mechanical properties, while remaining manufacturable through established composite fabrication processes.
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 isolates vibrations between electrical components, reducing the transmission of vibrations and enhancing the operational stability and performance of hard disk drives within the data storage system.
Implementation Method 1
a spring element having a spring element width and a spring element length orthogonal to and longer than the spring element width... The spring element extends from a main portion of the substrate at a first end of the spring element along a first direction toward a second end of the spring element
Data Source
AI summary
Provided herein are systems and apparatus for reducing vibration interaction between hard drives. In one implementation, an apparatus is provided comprising a backplane that comprises a substrate comprising an at least partially flexible material and a connector island assembly formed in the substrate. The connector island assembly comprises a spring element and a connector island. The spring element extends from a main portion of the substrate, and the connector island extends from the spring element. The connector island assembly is surrounded by the main portion of the substrate and configured to flex independently of the main portion of the substrate.