Combat Vehicle Cooling Pressure Cascade for Electronic Units

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Solution Overview

Problem

Existing cooling systems in combat vehicles are inadequate for effectively dissipating the high heat generated by electronic units, particularly those controlling propulsion systems, leading to inefficiencies and power loss, and require complex, space-consuming designs.

Innovation Solution

A cooling system is installed within the turret of a combat vehicle, utilizing a hose system to distribute cooled air to various zones, including electronic units, creating a pressure cascade for efficient heat dissipation by introducing cooled air and extracting warm air through a negative pressure differential.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If conventional cooling methods (cooling fins and heat transfer to chassis) are used for electronic units, then the structure is simple, but the cooling effectiveness is insufficient for high heat generation

Engineering Contradiction:
Improvecooling effectivenessVSAvoidcooling system complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent combines the cooling of electronic units with the existing climate control system for the combat vehicle cabin. The single-stage compressor unit serves both to cool the cabin air and to provide cooled air to electronic units through integrated ducting, eliminating the need for separate cooling systems and reducing overall complexity while improving cooling effectiveness.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The climate control system is designed to perform multiple functions: cooling the combat vehicle cabin and simultaneously cooling electronic units. The compressor-condenser unit and air handling system serve dual purposes, with cooled air distributed to both crew compartments and electronic equipment through a unified system architecture.

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

2Temperature

If additional cooling systems are installed for electronic units, then cooling effectiveness improves, but the vehicle occupies more space

Engineering Contradiction:
Improveelectronic unit coolingVSAvoidvehicle internal space
Core Design Contradiction:
TemperatureVSVolume of moving object

Solution Approach 1:

The patent integrates electronic unit cooling into the existing climate control system architecture. The same compressor-condenser unit and air handling system that cool the cabin are used to cool electronic units, with air ducts routing cooled air to electronic compartments. This eliminates the need for separate cooling equipment and saves valuable vehicle space.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The climate control system performs dual functions by simultaneously cooling both the combat vehicle cabin and electronic units. The system uses a single source of cooled air that is distributed to multiple zones, maximizing space utilization while providing effective cooling for all heat-generating components.

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

3Temperature

If separate cooling units with fans are installed in electronic unit compartments, then cooling effectiveness improves, but the device complexity and space requirements increase

Engineering Contradiction:
Improveelectronic unit coolingVSAvoidcooling system complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The patent extracts the cooling function from separate electronic unit compartments and integrates it into the main climate control system. Instead of installing fans and cooling units within electronic compartments, the system extracts cooled air from the main climate control unit and delivers it through ducting, simplifying the overall system architecture while maintaining effective cooling.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The climate control system serves multiple functions by providing cooled air to both crew compartments and electronic units through a unified system. This eliminates the need for separate cooling devices in electronic compartments, reducing complexity while ensuring adequate cooling for all components.

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

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 system provides effective cooling for both crew compartments and electronic units without occupying additional space, maintaining the turret's mobility and reducing power loss by utilizing existing resources efficiently.

Implementation Method 1

creating a pressure cascade for efficient heat dissipation by introducing cooled air and extracting warm air through a negative pressure differential

Methodology Applied
Scientific EffectPressure differential: Pressure Gradient

Implementation Method 2

conventional cooling methods, such as cooling fins and/or heat transfer to the vehicle's chassis

Methodology Applied
Scientific EffectHeat transfer: Conduction (thermal)

Implementation Method 3

an airflow is directed past the electronic units to be cooled by a fan, so that the heat is dissipated by the airflow

Methodology Applied
Scientific EffectConvection: Convection

Data Source

PatentEP3292007B2Cooling system of a combat vehicle, and pressure cascade for cooling at least one electronic unit in a combat vehicle by means of a cooling system
Publication Date: 2025.12.17 RHEINMETALL LANDSYSTEME GMBH
  • EP3292007B2 patent drawingFigure 1
  • EP3292007B2 patent drawingFigure 2
  • EP3292007B2 patent drawingFigure 3

AI summary

The invention relates to a cooling system and a pressure cascade for cooling at least one electronic unit in a combat vehicle (20). The cooling system is used for air conditioning different zones in the combat vehicle (20) and/or for cooling the electronic units. Cooled air is supplied to an installation space (25) from the cooling system by a hose system (22) in order to cool the electronic units, said installation space being equipped with the electronic unit to be cooled. In this manner, an overpressure is produced in the installation space (25). An underpressure is produced by the cooling system (10) in the chamber of the cooling installation (10) of the cooling system. By using an opening from the installation space (25) to the chamber of the cooling installation (10), the pressure difference between the installation space (25) and the chamber of the cooling installation (10) is then utilized to transport the air from the installation space (25) into the chamber of the cooling installation (10) and thus generate a pressure cascade.