Thermoelectric Generator Barrel Interface for Firearm Power
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Solution Overview
Problem
Current technologies for converting heat energy into electricity are not effectively integrated into firearm systems to power battery-operated equipment, such as night-vision scopes and laser targeting mechanisms, which are crucial for combat situations.
Innovation Solution
A thermoelectric generator system is secured to a firearm's handguard, with an interface that conforms to the barrel's curvature and includes a heat-conducting material and a biasing structure to maintain contact, converting heat from the barrel into electricity for powering devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a thermoelectric generator is integrated into a firearm system to convert heat into electricity, then battery-operated equipment can be powered, but the device complexity increases
Solution Approach 1:
The patent combines the thermoelectric generator, heat-conducting material, and biasing structure into a single integrated energy conversion device that mounts onto the firearm handguard. This merging of multiple components into one unified system reduces overall device complexity while maintaining the ability to convert barrel heat into electricity for powering battery-operated equipment.
Solution Approach 2:
The biasing structure automatically maintains contact between the thermoelectric generator and the barrel without requiring external adjustment or intervention. The spring-loaded mechanism self-regulates to ensure continuous thermal contact, allowing the system to serve itself and eliminating the need for manual maintenance or complex control systems.
2Loss of energy
If the interface conforms to the barrel curvature to maximize heat transfer, then heat conversion efficiency improves, but manufacturing precision requirements increase
Solution Approach 1:
The patent employs a biasing structure that applies mechanical force to maintain optimal contact pressure between the interface and the barrel. By dynamically adjusting the contact parameter through spring force, the system achieves high heat transfer efficiency without requiring the interface to be manufactured with perfect curvature conformity, thus reducing manufacturing precision requirements.
Solution Approach 2:
The interface is designed with compliant or flexible characteristics that allow it to dynamically adapt to the barrel's curvature during operation. The biasing structure enables the interface to flex and conform to thermal expansion and positional variations, maintaining effective thermal contact without requiring rigid precision manufacturing.
3Reliability
If the contact surface maintains constant contact with the barrel through a biasing structure, then heat conversion reliability improves, but the device complexity increases
Solution Approach 1:
The patent utilizes the natural heat generation from the barrel (which would otherwise be wasted energy) as the primary function to drive the system. The biasing structure leverages the thermal expansion and operational vibrations of the barrel to maintain contact, converting potential harmful factors into beneficial contact maintenance mechanisms that improve reliability without significantly increasing complexity.
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 efficiently converts heat from the firearm's barrel into electricity, providing a reliable power source for battery-operated equipment, enhancing operational capabilities in combat scenarios.
Implementation Method 1
A thermoelectric effect is the conversion of a temperature difference into electricity. The thermoelectric effect can also work in reverse, converting electricity to a temperature difference.
Implementation Method 2
a heat-conducting material (or body) disposed between the curved surface and the substantially flat mounting surface to conduct the heat from the curved surface to the substantially flat mounting surface
Data Source
AI summary
An energy conversion system for use in a rifle with a barrel and a handguard includes an interface with a curved surface that conforms substantially to a curvature of the barrel such that the curved surface receives heat from the barrel. The interface further includes a substantially flat mounting surface and a heat-conducting material disposed between the curved surface and the substantially flat mounting surface to conduct the heat from the curved surface to the substantially flat mounting surface. Moreover, a spring is positioned to be between the interface and the handguard to apply a force to the interface so that the curved surface substantially maintains contact with the barrel. A thermoelectric generator is secured to the substantially flat mounting surface and includes a positive lead and a negative lead.