Fuel Cell Thermal Conductor Attachment for PCB Heat Management
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Solution Overview
Problem
Fuel cells face high production costs and operational challenges, including safety issues and limited power capacity due to varying operating parameters, which restrict their widespread adoption and utility in different applications.
Innovation Solution
A system that integrates a fuel tank with a thermal conductor attachment to a printed circuit board (PCB) for efficient heat transfer, allowing the PCB's generated heat to be used for the endothermic reaction in the fuel tank, thereby reducing the need for external heating and enhancing heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a fuel cell system is integrated into a compact electronic device, then power generation capability is improved, but heat management complexity increases
Solution Approach 1:
The patent merges the heat management function with the existing PCB structure by integrating a heat spreader directly into the PCB design. The PCB serves dual purposes: electrical circuitry and thermal management. The heat spreader is positioned between heat-generating components and the fuel cell, creating an integrated thermal pathway that eliminates the need for separate heat management components.
Solution Approach 2:
The PCB is designed to perform multiple functions simultaneously: it serves as the electrical circuit board, a structural support element, and a thermal management component. The heat spreader integrated into the PCB acts as both a thermal conduction pathway and a structural element, reducing overall device complexity while maintaining power generation capability.
2Productivity
If external heating is provided for the fuel tank, then fuel reaction efficiency is improved, but device complexity and energy consumption increase
Solution Approach 1:
The patent converts the harmful waste heat generated by electronic components into a beneficial resource for heating the fuel tank. The heat spreader captures excess thermal energy from the PCB and directs it to the fuel tank, enabling the endothermic fuel reaction without requiring external heating sources. This transforms a waste product into a useful input.
Solution Approach 2:
The device serves itself by using its own internally generated waste heat to maintain the fuel tank temperature required for efficient reaction. The system is self-sufficient, requiring no external heating infrastructure, which simplifies device design and reduces overall energy consumption from external sources.
3Reliability
If waste heat from electronic components is dissipated to ambient, then device reliability is improved, but energy efficiency decreases
Solution Approach 1:
Instead of dissipating waste heat to the ambient environment, the patent redirects it to heat the fuel tank. The heat spreader creates a thermal pathway that captures heat from hot spots on the PCB and transfers it to the fuel tank, converting what would be wasted energy into a resource that enhances fuel reaction efficiency.
Solution Approach 2:
The system recovers waste heat that would otherwise be discarded to the environment. The heat spreader intercepts thermal energy from electronic components before it is lost, and redirects it to the fuel tank, effectively recovering and reuseing energy that would have been wasted.
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
This solution simplifies the fuel cell system by utilizing the PCB's heat for fuel tank temperature regulation, improving the efficiency and longevity of fuel cell operation while reducing the complexity of heat management in compact devices.
Implementation Method 1
a thermal conductor having a first surface for thermally contacting directly or ultimately at least one heat-generating portion of the PCB and a second surface for thermally contacting directly or ultimately the fuel tank
Implementation Method 2
allowing the PCB's generated heat to be used for the endothermic reaction in the fuel tank
Data Source
Figure 1~2
Figure 3~5A
Figure 5B~6A
AI summary
An attachment for a fuel tank of a fuel cell powered system is described. The attachment thermally conducts heat generated from an electronic component to the fuel tank. The attachment further affixes to the electronic component by a securing portion. In one aspect, the attachment is comprised in a fuel cell powered electronic device. In another aspect, the attachment is integral to the fuel tank.