Slotted Support Structure for Cryogenic Superconductor Interconnects

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Solution Overview

Problem

High-temperature superconducting systems face challenges in maintaining mechanical and thermal stability due to different coefficients of thermal expansion between components, leading to potential breakage of flexible interconnects when transitioning from room temperature to cryogenic temperatures.

Innovation Solution

A thermally conductive support structure with parallel slots and through-holes, along with connector assemblies and extender arms, provides mechanical support and establishes a heat path for flexible interconnects between superconducting circuits, allowing for relative movement and preventing breakage by dissipating heat and aligning blades securely.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If flexible interconnects are used to connect superconducting circuits between different temperature zones, then adaptability and ease of installation are improved, but mechanical stability and reliability deteriorate due to different coefficients of thermal expansion causing breakage during temperature transitions

Engineering Contradiction:
ImproveadaptabilityVSAvoidreliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The support structure is divided into multiple segments including a support member with parallel slots, connector support rods, and connector assemblies. This segmentation allows each component to independently accommodate thermal expansion while maintaining overall structural integrity, preventing breakage of the flexible interconnect during temperature transitions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support structure acts as an intermediary between the flexible interconnect and the superconducting circuits. It provides a stable thermal and mechanical environment for the interconnect, absorbing thermal stresses and preventing direct transmission of expansion forces that would cause breakage.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Strength

If rigid support structures are used to maintain mechanical stability, then strength and stability are improved, but adaptability and ease of installation deteriorate due to inability to accommodate thermal expansion differences

Engineering Contradiction:
ImprovestrengthVSAvoidadaptability
Core Design Contradiction:
StrengthVSAdaptability or versatility

Solution Approach 1:

The support structure incorporates dynamic elements such as parallel slots and movable connector support rods that allow adjustment and movement. These dynamic features enable the structure to adapt to thermal expansion while maintaining mechanical strength, combining rigidity where needed with flexibility where required.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The support structure uses thin, flexible components such as the parallel slots and connector support rods that can bend and move to accommodate thermal expansion. These flexible elements maintain structural integrity while adapting to temperature-induced dimensional changes.

Inventive Principle:
Principle #30Flexible shells and thin films

3Reliability

If multiple connector assemblies are used to provide mechanical support and heat path, then reliability and thermal management are improved, but device complexity increases

Engineering Contradiction:
ImprovereliabilityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The connector assemblies serve multiple functions simultaneously: they provide mechanical support for the flexible interconnect, establish thermal conduction paths, and allow for positional adjustment. This multi-functionality reduces the need for separate components, managing complexity while maintaining reliability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The support member, connector support rods, and connector assemblies are merged into an integrated structure. The parallel slots in the support member directly receive the connector support rods, which in turn hold the connector assemblies, creating a unified system that provides both mechanical support and thermal management without requiring separate complex subsystems.

Inventive Principle:
Principle #5Merging (Combining)

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 support structure effectively maintains the integrity of flexible interconnects in cryogenic environments by providing thermal and mechanical support, preventing breakage and ensuring reliable communication between superconducting circuits across varying temperature zones.

Implementation Method 1

The support member can include a plurality of connector assemblies, each connector assembly providing mechanical support for the flexible interconnect of the superconducting system and establishing a heat path between the flexible interconnect and the support member

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP4073852B1Support structure for a flexible interconnect of a superconductor
Publication Date: 2024.03.13 NORTHROP GRUMMAN SYSTEMS CORP
  • EP4073852B1 patent drawingFigure 1
  • EP4073852B1 patent drawingFigure 2
  • EP4073852B1 patent drawingFigure 3

AI summary

A support structure for a flexible interconnect of a superconducting system can include a support member that is formed of thermally conductive material. The support member can include a plurality of parallel slots. Each slot can extend from a first surface of a base of the support member to a second surface of the base. The first and second surfaces of the base can be positioned on parallel planes and each slot can be shaped to allow relative movement of a fastener that allows a respective connector assembly to be affixed to the support member. Moreover, the respective connector assembly can provide mechanical support for the flexible interconnect of the superconducting system and establish a heat path between the flexible interconnect and the support member. The support member can also include a wall extending transverse from the first surface of the base, the wall comprising a plurality of through-holes.