Cooling Cabinet Power Layout for Leak-Safe Water Cooling

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Solution Overview

Problem

Water-cool type cooling cabinets pose a risk of water leakage, leading to electrical hazards and damage to electronic components.

Innovation Solution

A cooling cabinet design that converts alternating current into direct current for most components, reducing the voltage and minimizing the risk of electrical hazards, and uses AC pumps for higher efficiency cooling.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If water-cool type cooling cabinet is used, then cooling efficiency is improved, but risk of water leakage and electrical hazards increases

Engineering Contradiction:
Improvecooling efficiencyVSAvoidelectrical hazards from water leakage
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the power supply system into separate modules (power shelf, power distribution boards) and isolates electrical components from water-cooling components. The power shelf converts AC to DC and distributes it through dedicated power distribution boards, creating physical and electrical isolation between water and electricity systems, thereby maintaining cooling efficiency while eliminating electrical hazards from water leakage.

Inventive Principle:
Principle #2Taking out (Extraction)

2Device complexity

If alternating current is used for all components, then device complexity is reduced, but safety risk increases due to higher voltage

Engineering Contradiction:
Improveelectrical system complexityVSAvoidelectrical hazard from high voltage
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The patent changes the electrical parameter from AC to DC for internal components. The power shelf converts AC to DC, and the power distribution boards distribute DC power to fans and other components. This parameter change reduces voltage levels and eliminates the hazards associated with AC power, while the modular power distribution architecture manages the added conversion complexity efficiently.

Inventive Principle:
Principle #35Parameter changes

3Object-affected harmful factors

If DC power is used for fans and components, then safety is improved by reducing voltage, but power conversion complexity increases

Engineering Contradiction:
Improveelectrical hazardVSAvoidpower conversion system
Core Design Contradiction:
Object-affected harmful factorsVSDevice complexity

Solution Approach 1:

The patent segments the power supply system into distinct functional modules: a power shelf for AC-to-DC conversion, and separate power distribution boards for distributing DC power to different components (fans, pumps, controllers). This segmentation isolates the complexity of power conversion to a dedicated module while simplifying the rest of the system, managing complexity through modular architecture rather than increasing overall system complexity.

Inventive Principle:
Principle #1Segmentation

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

Reduces the risk of electrical hazards and enhances cooling efficiency by utilizing direct current for internal components and AC pumps, ensuring safer operation and effective heat management.

Implementation Method 1

The power shelf is disposed in the cabinet body and configured to convert a first alternating current (AC) into a first direct current (DC)

Methodology Applied
Scientific EffectAlternating current to direct current conversion:

Implementation Method 2

The fan module is disposed in the cabinet body

Methodology Applied
Scientific EffectForced convection: Forced Convection

Implementation Method 3

The AC pump is disposed in the cabinet body and configured to transmit a cooling liquid

Methodology Applied
Scientific EffectPumping: Pump

Implementation Method 4

The inverter is electrically connected to the power shelf with the AC pump, and configured to convert the first direct current into a second alternating current and provide the second alternating current to the AC pump

Methodology Applied
Scientific EffectDirect current to alternating current conversion:

Data Source

PatentEP4692987A1Cooling cabinet
Publication Date: 2026.02.11 LITE ON TECH CORP
  • EP4692987A1 patent drawingFigure 1A
  • EP4692987A1 patent drawingFigure 1B
  • EP4692987A1 patent drawingFigure 1C

AI summary

A cooling cabinet includes a cabinet, a power shelf, a fan module and a distribution board. The power shelf is configured in the cabinet and is configured to convert alternating current into direct current. The fan module is disposed on the cabinet. The power distribution board is disposed on the cabinet and electrically connected to the fan module, and is configured to transmit the direct current to the fan module.