Busbar Power Distribution for Immersion-Cooled Circuit Boards
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional two-phase immersion cooling systems for electronic components face challenges with bulky harness configurations that hinder the circulation of dielectric heat transfer fluids, necessitating a more compact and efficient power distribution method.
Innovation Solution
The system employs a skid-mounted immersion tank with voltage converters outside the tank, using busbars that extend through the tank wall to connect circuit boards, and a modular case with wire harnesses that reduce bulkiness and enhance fluid circulation, allowing for parallel voltage converter connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single harness connects all connectors of a single board to a power source, then power distribution is simplified, but the harness configuration becomes bulky and prevents suitable circulation of dielectric heat transfer fluid
Solution Approach 1:
The patent divides the power distribution system into multiple separate harnesses, each connecting to individual connectors on the circuit board rather than using a single bulky harness. This segmentation reduces the overall bulkiness and allows better fluid circulation while maintaining power distribution functionality
Solution Approach 2:
The patent repositions voltage converters from inside the immersion tank to outside the tank, with harnesses extending through the tank wall. This spatial reorganization in another dimension (moving components from internal to external position) reduces interference with fluid circulation while maintaining electrical connectivity
2Ease of operation
If voltage converters are mounted inside the immersion tank, then power distribution is integrated, but the harness configuration becomes bulky
Solution Approach 1:
The patent extracts the voltage converters from inside the immersion tank and relocates them to an external mounting position. This extraction eliminates the need for complex internal harness routing while maintaining power distribution functionality through extended connectors and cables that pass through the tank wall
3Quantity of substance
If multiple harnesses are used to connect circuit boards to power source, then fluid circulation is improved, but the number of harnesses increases
Solution Approach 1:
The patent designs each harness to serve multiple functions: electrical power transmission, thermal management support, and spatial organization. The harnesses are configured to work in conjunction with the immersion cooling system, providing both electrical connectivity and facilitating fluid flow patterns, thereby reducing the need for additional separate components
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
This configuration improves the circulation of dielectric heat transfer fluids and reduces the number of harnesses, enabling effective heat management and efficient power distribution to electronic components.
Implementation Method 1
When the surfaces of electronic components in contact with the dielectric heat transfer fluid reach the boiling temperature of the dielectric heat transfer fluid, the dielectric heat transfer fluid located nearby will vaporize, therefore absorbing heat from the electronic components
Implementation Method 2
the dielectric heat transfer fluid located nearby will vaporize, therefore absorbing heat from the electronic components
Implementation Method 3
at least one condenser for condensing dielectric heat transfer fluid from a vapor phase to a liquid phase
Data Source
AI summary
A two-phase immersion cooling system includes two or more voltage converters and a plurality of circuit boards, which are held in a modular case inside an immersion tank. A layout for distributing electric power includes at least two busbars that are electrically connected in parallel to the positive and the negative terminals of the voltage converters, respectively. Each of the plurality of circuit boards is connected to the two busbars via wires that are bundled into wire harnesses. Each wire harness connects a series of connectors longitudinally aligned across the plurality of boards, to the two busbars.