Flexible Backplane With Spring-Isolated Connector Islands
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Solution Overview
Problem
In densely packed HDD sleds, vibrations from one HDD can be transferred to others, disrupting operations and causing increased wear and breakage due to combined vibrations, which existing technologies fail to adequately mitigate.
Innovation Solution
A backplane with a flexible, non-rectangular substrate and alternating connector islands that can move independently, featuring spring elements bridging between islands and the substrate to absorb vibrations, allowing each island to flex and isolate vibrations from the substrate and other components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If HDDs are densely packed in a sled with rigid structural members, then storage capacity is increased, but vibration transfer between HDDs increases causing operational disruption and component wear
Solution Approach 1:
The backplane is divided into multiple isolated connector islands that are physically separated and independently mounted on the substrate. Each connector island serves as an independent mounting point for HDDs, preventing vibration transfer between adjacent drives through the rigid backplane structure.
Solution Approach 2:
A flexible material is introduced as an intermediary layer between the rigid substrate and the connector islands. This flexible material acts as a vibration isolator, absorbing and dampening vibrations before they can transfer through the rigid backplane to other HDDs.
2Strength
If rigid structural members are used in the sled, then structural strength is improved, but vibration transfer and component wear increase
Solution Approach 1:
The backplane structure transitions from being uniformly rigid to having locally differentiated properties. The substrate remains rigid for overall structural support, while the connector islands and flexible material create localized zones with different mechanical properties that isolate vibrations at the component level.
Solution Approach 2:
The backplane combines rigid substrate material with flexible connector island material to create a composite structure. This composite design allows the system to simultaneously achieve the structural strength needed for sled integrity and the vibration isolation needed to protect HDDs from harmful vibrations.
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 reduces vibration transfer between HDDs, enhancing operational stability and reducing wear and breakage by allowing each connector island to absorb and isolate vibrations, thereby improving the reliability and longevity of the storage system.
Implementation Method 1
one or more spring elements bridging between a particular connector island and the substrate, with traces of the plurality of backplane traces extending over the one or more spring elements to the particular connector island and with the one or more spring elements allowing the particular connector island to flex with respect to the substrate and absorb vibrations
Implementation Method 2
one or more spring elements bridging between a particular connector island and the substrate
Data Source
AI summary
A backplane configured to receive electrical components is provided. The backplane in one example includes a substantially planar substrate comprising an at least partially flexible material and formed in a non-rectangular shape, a series of alternating connector islands formed along two substantially parallel axes, wherein each connector island is able to move independently of other connector islands, a plurality of backplane traces extending from the series of alternating connector islands to a backplane connector region of the substrate, with a number of backplane traces increasing closer to the backplane connector region, and one or more spring elements bridging between a particular connector island and the substrate, with the one or more spring elements allowing the particular connector island to flex with respect to the substrate and absorb vibrations.