Cable Bracket Thermal Management for Cryogenic Enclosure Heat Control
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Solution Overview
Problem
Providing electrical power to devices in very low temperature environments without conducting excess heat is challenging, as it increases the energy required for cooling in cryogenic systems.
Innovation Solution
A cooled system with thermally coupled cable brackets that conduct heat from cables to the outer surface of an enclosure, reducing heat loads into the cooled environment, and a cryogenically cooled system with a buffer stage to manage heat from heat-generating devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If electrical power is provided to devices in very low temperature environments, then devices can operate, but excess heat is conducted to the low temperature environment increasing cooling energy requirements
Solution Approach 1:
The cable management system is divided into multiple cable brackets distributed along the enclosure, each independently managing heat from specific cable bundles. This segmentation allows localized heat dissipation at multiple points along the cable path, preventing heat accumulation and reducing the overall thermal load on the cooling system.
Solution Approach 2:
Cable brackets serve as intermediary thermal management components between the cables and the enclosure. These brackets provide structured thermal pathways that mediate heat transfer from cables to the enclosure walls, enabling controlled heat dissipation to the warmer external environment rather than allowing direct heat conduction into the cooled interior space.
2Ease of operation
If cables are routed directly into the cooled enclosure, then power can be supplied, but heat transfer into the low-temperature environment increases
Solution Approach 1:
Cable brackets are pre-installed on the enclosure exterior before cable routing operations. This preliminary preparation establishes organized cable pathways and thermal management structures in advance, making the cable routing process simpler and more systematic while ensuring heat dissipation capabilities are already in place to prevent energy loss.
Solution Approach 2:
The heat dissipation function is extracted from the main cooled enclosure system and placed into separate cable brackets mounted on the exterior. This extraction allows cables to be routed conveniently through the brackets while their heat is dissipated externally, separating the cable routing convenience from the thermal management function and preventing heat loss into the cooled environment.
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
Effectively minimizes heat transfer into the low-temperature environment, reducing the energy burden on cooling equipment and maintaining suitable temperatures for cryogenic operations.
Implementation Method 1
multiple cable brackets thermally coupled to the outer surface of the enclosure, each cable bracket including a first surface conforming to the outer surface of the enclosure and an opening therethrough sized to hold a cable and conduct heat from the cable to the outer surface of the enclosure
Data Source
AI summary
A cooled system includes an enclosure having an outer surface and an inner surface comprising a cooled enclosed area, multiple cable brackets thermally coupled to the outer surface of the enclosure, each cable bracket including a first surface conforming to the outer surface of the enclosure and an opening therethrough sized to hold a cable and conduct heat from the cable to the outer surface of the enclosure.