Modular DC-DC Converter Cables for Multi-Voltage Field Power

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Solution Overview

Problem

Existing DC-DC conversion systems for military applications lack flexibility and simplicity, often requiring complex programming or sacrificing flexibility for simplicity, and fail to efficiently provide power from diverse sources like helicopters to various electronic devices with different voltage requirements.

Innovation Solution

A modular DC-DC conversion system with a three-part cable assembly that allows operators to quickly and intuitively connect power sources and loads without programming, featuring a DC-DC converter with embedded copper heat dissipating tubes for safety and unique connector sizes for voltage identification, enabling power transfer from various sources (including helicopters) to devices with different voltages.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If existing DC-DC conversion systems use complex programming or control mechanisms, then power conversion capability is improved, but device complexity increases

Engineering Contradiction:
Improvepower conversion capabilityVSAvoidprogramming complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The DC-DC converter automatically detects the input voltage level and configures its internal circuitry without requiring external programming or manual setup. The system self-adjusts to convert power from various voltage sources (e.g., 12V vehicle batteries, 28V aircraft systems) to appropriate output voltages for connected devices, eliminating the need for complex control programming while maintaining versatile power conversion capability

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The converter is designed with universal input acceptance for multiple voltage standards and device types. A single unit can power various electronic devices (smartphones, tablets, laptops, military equipment) from different power sources (vehicle batteries, aircraft systems, portable power stations) without requiring reconfiguration or specialized programming for each application

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

2Ease of operation

If existing DC-DC conversion systems prioritize simplicity, then ease of operation is improved, but flexibility is reduced

Engineering Contradiction:
Improveease of connectionVSAvoidflexibility
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The cable assembly is divided into separate modular components: an input cable with connector for the power source, a DC-DC converter unit, and output cables with connectors for various devices. This segmentation allows operators to easily connect and disconnect different cable combinations depending on the power source and devices being used, providing both simplicity of connection and flexibility to adapt to different configurations

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically adapts its configuration based on the connected devices and power source. The converter automatically adjusts its operation mode, and the modular cable system allows physical reconfiguration by connecting different output cables to different devices, maintaining ease of operation while providing operational flexibility

Inventive Principle:
Principle #15Dynamics

3Power

If DC-DC converters operate at high power levels, then power transfer efficiency is improved, but heat generation increases

Engineering Contradiction:
Improvepower transfer capabilityVSAvoidheat generation
Core Design Contradiction:
PowerVSTemperature

Solution Approach 1:

The heat dissipation function is extracted as a separate, dedicated feature through embedded copper heat dissipating tubes within the converter housing. These tubes conduct heat away from the internal power conversion components to the external environment, allowing the converter to operate at high power levels without excessive temperature buildup, thus maintaining both high power transfer capability and acceptable operating temperatures

Inventive Principle:
Principle #2Taking out (Extraction)

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 flexible and simple power management, allowing operators to efficiently charge batteries and power devices across a range of voltages while maintaining situational awareness and safety by dissipating heat effectively and using intuitive connector sizes for voltage identification.

Implementation Method 1

DC-DC converter with embedded copper heat dissipating tubes for safety

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS11876327B1DC-DC conversion system
Publication Date: 2024.01.16 LAT ENTERPRISES INC
  • US11876327B1 patent drawing
  • US11876327B1 patent drawing
  • US11876327B1 patent drawing

AI summary

A direct current (DC)-DC conversion system including at least one DC source, at least one source cable, a DC-DC converter, at least one output cable, and at least one DC load. Each of the at least one source cable includes a source input connector, a source output connector, and a source input cable. The DC-DC converter includes a housing, a DC-DC input connector, and a DC-DC output connector. Each of the at least one output cable includes a load input connector, at least one load output connector, and a load output cable. The DC-DC converter is operable to receive energy from the at least one source via the at least one source cable, and is operable to provide energy to the at least one DC load via the at least one output cable.