Stacked Water Block Assembly for Clog-Resilient Cooling

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Solution Overview

Problem

Water blocks in computer systems are susceptible to clogging due to lime scale deposits, which reduces their heat dissipation performance and can lead to overheating and component failure.

Innovation Solution

A water block assembly with stacked units, where each unit has its own fluid conduit, allowing for independent or parallel operation, providing redundancy and improved cooling capacity by ensuring continued heat dissipation even if one unit becomes clogged.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a single water block unit is used, then the device complexity is low, but the reliability deteriorates due to susceptibility to clogging

Engineering Contradiction:
Improveheat dissipation reliabilityVSAvoidwater block structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The water block is divided into multiple independent water block units (first water block unit, second water block unit, etc.), each with its own fluid conduit that operates independently. This segmentation allows one unit to continue functioning even if another becomes clogged, thereby improving reliability without requiring a complete system redesign.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each water block unit is configured with locally optimized properties, including base portions with thermal transfer surfaces tailored to specific heat generation zones of the target component, and fluid conduits positioned to maximize heat dissipation efficiency in their respective areas. This local optimization enhances overall heat dissipation reliability.

Inventive Principle:
Principle #3Local quality

2Power

If multiple water block units are stacked, then the heat dissipation capacity improves, but the device complexity increases

Engineering Contradiction:
Improveheat dissipation capacityVSAvoidwater block assembly complexity
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

Multiple water block units are merged into a single stacked assembly that functions as one integrated cooling system. The units are arranged in sequence along the heat generation direction, with each unit's thermal transfer surface facing the previous unit, creating a unified structure that dissipates heat across multiple stages while maintaining manageable complexity through standardized modular design.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The water block units are arranged in a stacked configuration along the vertical dimension rather than spreading horizontally. This dimensional arrangement increases heat dissipation capacity by adding thermal transfer stages in the height direction, allowing better utilization of vertical space and improved heat dissipation performance without proportionally increasing footprint complexity.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Productivity

If water flows through a single conduit, then the device complexity is low, but the productivity deteriorates due to flow restriction from clogging

Engineering Contradiction:
Improveheat dissipation efficiencyVSAvoidfluid conduit configuration
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The fluid cooling system is segmented into multiple independent fluid conduits, each serving a separate water block unit. This segmentation ensures that clogging in one conduit does not restrict flow in others, maintaining overall heat dissipation productivity. Each conduit can be independently monitored and maintained, reducing downtime and preserving system efficiency.

Inventive Principle:
Principle #1Segmentation

4Power

If a compact water block design is used, then the device complexity is low, but the heat dissipation capacity deteriorates

Engineering Contradiction:
Improveheat dissipation capacityVSAvoidwater block volume
Core Design Contradiction:
PowerVSVolume of moving object

Solution Approach 1:

The water block units are arranged in a compact stacked configuration along the vertical dimension, maximizing heat dissipation capacity within a limited volume. By stacking units sequentially along the heat generation direction and utilizing vertical space, the design achieves high heat dissipation power without proportionally increasing overall volume, maintaining space efficiency while enhancing cooling capability.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The water block units are nested in a sequential arrangement where each unit builds upon the previous one, with thermal transfer surfaces facing inward toward the heat source. This nested configuration allows multiple heat dissipation stages to be packed into a compact form factor, increasing heat dissipation capacity without linearly increasing volume.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 stacked design enhances the cooling capacity and redundancy of the water block assembly, preventing overheating and maintaining performance even if one unit experiences decreased performance due to clogging.

Implementation Method 1

a first base portion having an external thermal transfer surface configured to be in contact with the target component

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

water is made to flow through a conduit in the water block to absorb heat from the component

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentEP3742097B1Water block assembly
Publication Date: 2023.09.06 OVH
  • EP3742097B1 patent drawingFigure 1
  • EP3742097B1 patent drawingFigure 2~3
  • EP3742097B1 patent drawingFigure 4

AI summary

A water block assembly includes first and second water block units having respective first and second fluid conduits. The second water block unit is stacked on the first water block unit. The second fluid conduit operates either in parallel with the first fluid conduit or fluidly independent therefrom, such that cooled fluid is fed to the first and second fluid conduits. The first water block unit includes a first base portion and a first cover portion disposed on and affixed to the first base portion. The first cover portion defines a first fluid inlet and a first fluid outlet of the first fluid conduit. The second water block unit includes a second base portion and a second cover portion disposed on and affixed to the second base portion. The second cover portion defines a second fluid inlet and a second fluid outlet of the second fluid conduit.