Underfloor Piping-Container Module for Rack Liquid Cooling

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Solution Overview

Problem

Existing data center cooling systems require raised floors or significant structural modifications to deliver liquid-cooling to IT equipment, which can be impractical or impossible in certain environments, and existing cooling-distribution units occupy valuable whitespace.

Innovation Solution

An underfloor fluid distribution system using piping-container modules that distribute liquid-cooling from beneath the equipment racks, incorporating seals and leak detection, allowing for efficient coolant transfer without the need for raised floors or additional structural changes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a raised floor is used to distribute liquid-cooling beneath equipment racks, then coolant transfer is facilitated, but structural modifications and additional space requirements increase

Engineering Contradiction:
Improvecoolant transferVSAvoidstructural modifications
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The cooling distribution system is divided into modular components: overhead cooling units positioned above each rack, vertical coolant delivery channels integrated into the rack structure, and distribution manifolds at the rack level. This segmentation eliminates the need for raised floors while maintaining efficient coolant distribution to individual racks.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system transitions from horizontal coolant distribution (requiring raised floors) to vertical distribution through integrated rack channels. Coolant is delivered vertically from overhead units through the rack structure to distribution points at equipment level, utilizing the vertical dimension to achieve efficient cooling without structural floor modifications.

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

2Ease of operation

If traditional rack-mounted cooling-distribution units are used, then liquid-cooling is provided to equipment racks, but valuable whitespace within data center rows is occupied

Engineering Contradiction:
Improveliquid-cooling deliveryVSAvoidwhitespace occupancy
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

Instead of mounting cooling-distribution units at rack level or floor level, the system inverts the approach by positioning cooling units overhead above the racks. This allows coolant delivery without occupying valuable whitespace in data center rows, as the cooling infrastructure is positioned in the overhead space that would otherwise be unused.

Inventive Principle:
Principle #13The other way round (Inversion)

Solution Approach 2:

The overhead cooling units serve multiple functions: they house the cooling-distribution mechanism, provide structural support for coolant delivery channels, and can be positioned to serve multiple racks simultaneously. This multi-functionality eliminates the need for separate rack-mounted cooling units, preserving whitespace while maintaining cooling capability.

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

3Ease of operation

If overhead cooling systems with suspended piping are used, then liquid-cooling is provided to equipment, but system complexity and installation difficulty increase

Engineering Contradiction:
Improveliquid-cooling provisionVSAvoidsuspended piping system
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system merges the cooling-distribution function with the rack structure itself. Vertical coolant delivery channels are integrated into the rack framework, and distribution manifolds are incorporated as part of the rack assembly. This integration eliminates the need for separate suspended piping systems, reducing overall system complexity while maintaining effective liquid-cooling delivery.

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

Enables effective liquid-cooling of IT equipment without raising the data center or creating additional space, while minimizing whitespace usage and reducing the risk of leaks.

Implementation Method 1

a seal coupled to the first portion and the second portion

Methodology Applied
Scientific EffectSealing:

Implementation Method 2

delivering relatively chilled coolant through a second portion from second liquid-cooling piping coupled to the at least one equipment rack

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP4697881A1Fluid distribution system
Publication Date: 2026.02.18 SCHNEIDER ELECTRIC IT CORP
  • EP4697881A1 patent drawingFigure 1
  • EP4697881A1 patent drawingFigure 2
  • EP4697881A1 patent drawingFigure 3

AI summary

A piping-container module includes a module body, a first portion formed in the module body, and a second portion formed in the module body. The first portion is configured to receive first liquid-cooling piping coupled to a cooling-distribution unit. The second portion is configured to receive second liquid-cooling piping coupled to an equipment rack. The piping-container module further includes a seal coupled to the first portion and the second portion and a walking platform configured to be coupled to the module body. The walking platform is configured to enable a person to walk on the piping-container module.