Configurable control selectors
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Solution Overview
Problem
In digital gas cooking appliances, the need for multiple control knobs or selectors for each burner is inefficient, as they can be positioned anywhere and are not necessarily physically connected to the valves they control, leading to a lack of flexibility and safety concerns when operating multiple burners.
Innovation Solution
A system with configurable control selectors that can be assigned to operate multiple burners via a user interface, allowing for rapid switching and de-coupling, and utilizing a processor to manage valve positions, eliminating the need for dedicated control knobs for each valve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple dedicated control knobs are provided for each burner, then each burner can be controlled independently, but the device complexity and number of control elements increases
Solution Approach 1:
A single control knob is designed to perform multiple functions by being programmably assigned to control different burners. The control knob can be configured through a microprocessor to operate any selected burner, eliminating the need for separate dedicated knobs for each burner while maintaining independent control capability.
2Reliability
If control knobs are physically connected to valves, then direct mechanical control is achieved, but flexibility in positioning and configuration is reduced
Solution Approach 1:
The patent replaces direct mechanical coupling between control knobs and valves with an electrical control system. Control knobs are coupled to a microprocessor that electronically controls solenoid-operated gas valves, eliminating the need for physical proximity or mechanical connection while maintaining reliable control.
3Ease of operation
If each burner has a dedicated control knob, then direct control is simplified, but safety concerns arise when operating multiple burners
Solution Approach 1:
The system incorporates feedback mechanisms where the microprocessor tracks which burners are active and provides visual indication through LED lights corresponding to controlled burners. The system can detect when multiple burners are operating and provide warnings or prevent operation under unsafe conditions, thereby addressing safety concerns while maintaining operational simplicity.
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 system provides flexible and safe operation of gas valves with minimal operator input, allowing for customized control of burners and enhanced safety by disabling unassigned valves, while reducing the complexity of multiple control knobs.
Implementation Method 1
the control knobs are mechanically coupled to a resolver or potentiometer that then supplies an electrical signal to the gas valves
Data Source
AI summary
A system for controlling an appliance having a plurality of burners operated by a plurality of digital gas valves includes a plurality of control selectors that are configurably assigned to a specified burner or burners.