Fuel Cell Repair Workstation With Multi-Zone Cure Heating

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Solution Overview

Problem

Existing manufacturing and repair processes for fuel cells and bladders face challenges in efficiently addressing localized imperfections and flaws due to limitations in temperature control and operator involvement.

Innovation Solution

A smart workstation equipped with programmable control systems, cure heaters with temperature sensors, and a human machine interface (HMI) allows for precise temperature control and automated temperature maintenance within desired ranges, enabling efficient curing and repair of fuel cells and bladders.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple heaters are used to treat multiple imperfections simultaneously, then productivity is improved, but device complexity increases

Engineering Contradiction:
Improvetreatment speedVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system divides the treatment task into multiple independent heater zones, each capable of treating a specific imperfection location. The workstation is segmented into multiple heating stations with individual temperature control, allowing parallel treatment of multiple imperfections while maintaining manageable complexity through modular design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The programmable control system serves multiple functions: it controls temperature for each heater, coordinates the curing process, and manages the overall treatment sequence. This multi-functional control architecture allows the system to handle multiple imperfections simultaneously without proportionally increasing control complexity

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

2Manufacturing precision

If programmable control systems are used to maintain precise temperature, then manufacturing precision is improved, but device complexity increases

Engineering Contradiction:
Improvetemperature control accuracyVSAvoidcontrol system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

Temperature sensors continuously monitor the actual temperature at each heating zone and feed this information back to the programmable control system. The control system compares the measured temperature with the target temperature and automatically adjusts heater power to maintain precise temperature control within the desired range

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The control system automatically maintains temperature without continuous operator intervention. The programmable logic controller autonomously regulates heater power based on temperature feedback, and the system self-corrects temperature deviations, reducing the need for manual adjustment while maintaining high precision

Inventive Principle:
Principle #25Self-service

3Extent of automation

If automated temperature control is implemented, then operator involvement is reduced, but device complexity increases

Engineering Contradiction:
Improveautomation levelVSAvoidsystem complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The system performs temperature control operations autonomously without requiring continuous operator attention. The programmable control system automatically monitors temperature, adjusts heater power, and manages the curing process timeline, enabling the workstation to service itself during operation and significantly reducing operator involvement

Inventive Principle:
Principle #25Self-service

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 smart workstation enhances accuracy and efficiency in temperature treatments, reduces operator involvement, and allows for simultaneous treatment of multiple imperfections, ensuring proper curing and improving manufacturing quality.

Implementation Method 1

a plurality of cure heaters configured to cure an article at a configurable temperature for a configurable time duration

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 2

each heater comprising a heater element and a temperature sensor

Methodology Applied
Scientific EffectTemperature sensing: Thermocouple

Data Source

PatentUS20250113408A1Smart workstation for manufacturing or repairing a fuel cell
Publication Date: 2025.04.03 AMERICAN FUEL CELL & COATED FABRICS CO LLC
  • US20250113408A1 patent drawing
  • US20250113408A1 patent drawing
  • US20250113408A1 patent drawing

AI summary

A smart workstation for manufacturing or repairing an article that requires heat to cure material is disclosed. The smart workstation comprises one or more distribution boxes. Each of the distribution boxes are connected to one or more cure heaters configured to cure an article at a configurable temperature for a configurable time duration. The smart workstation includes one or more programmable control systems configured to control the temperature of the time duration. Parameters of curing, including the temperature and the time duration, can be configured on a human machine interface (HMI) that is connected to the programmable control systems.