Universal Spark Ignition Controller for DSI and IP Gas Appliances

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Solution Overview

Problem

Gas-powered appliances require different spark ignition modules for direct spark ignition (DSI) and intermittent pilot (IP) systems, leading to configuration complexities and limited versatility in controlling ignition processes.

Innovation Solution

A controller with a circuit board, multiple connectors, and a processor that can be programmed to control both DSI and IP systems based on user selection, allowing for flexible operation and configuration of gas appliances.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If different spark ignition modules are used for DSI and IP systems, then each module can be optimized for its specific function, but the device complexity and inventory requirements increase

Engineering Contradiction:
Improveignition control reliabilityVSAvoidmodule configuration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The controller is designed with a universal architecture that can perform both DSI and IP ignition functions through software configuration. The processor can be programmed to control different gas valve arrangements (single valve for DSI, dual valves for IP) and different ignitor connections, allowing one physical device to replace multiple specialized modules while maintaining optimized performance for each ignition type

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

2Adaptability or versatility

If a single controller is designed to support both DSI and IP systems, then versatility and inventory reduction are achieved, but the configuration complexity and programming requirements increase

Engineering Contradiction:
Improvecontroller versatilityVSAvoidconfiguration complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The controller uses configurable parameters and software settings to adapt its behavior to different ignition types. By changing control parameters (such as which connectors are active, which valves to control, and ignition timing sequences), the same hardware platform can be optimized for either DSI or IP operation without physical reconfiguration, reducing complexity while maintaining versatility

Inventive Principle:
Principle #35Parameter changes

3Ease of manufacture

If multiple specialized modules are used for different ignition types, then each module can have simplified internal design, but the overall system complexity and installation difficulty increase

Engineering Contradiction:
Improvemodule manufacturing simplicityVSAvoidinstallation ease
Core Design Contradiction:
Ease of manufactureVSEase of operation

Solution Approach 1:

The universal controller consolidates multiple specialized modules into a single device with standardized connectors and interfaces. All gas appliance components (gas valves, ignitors, flame sensors) connect to the same controller through standardized connectors, simplifying installation and reducing the number of different module types that installers need to handle, while the internal software handles the complexity of different ignition configurations

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

Data Source

PatentUS12050030B2Spark ignition module and methods
Publication Date: 2024.07.30 COPELAND COMFORT CONTROL LP
  • US12050030B2 patent drawing
  • US12050030B2 patent drawing
  • US12050030B2 patent drawing

AI summary

A controller for use in a gas appliance system includes a circuit board, a plurality of connectors and a processor mounted on the circuit board. The processor controls operation of the gas appliance using, in part, at least one connector of the plurality of connectors and control settings for an intermittent pilot (IP) system in response to a user selection to configure the controller to control an IP system, and controls operation of the gas appliance using, in part, at least one connector of the plurality of connectors and control settings for a direct spark ignition (DSI) system in response to a user selection to configure the controller to control a DSI system.