Single Configurable Control Selector for Multi-Burner Appliances
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Solution Overview
Problem
In cooking appliance manufacturing, the traditional system requires multiple control knobs for each burner, which is inefficient and costly, especially with the advent of digital gas systems where control knobs can be positioned anywhere and are not physically connected to the valves they control.
Innovation Solution
A single configurable control selector system that allows users to assign a single knob to different burners or heating elements, with a graphical status display and a processor-based interface for safe and efficient operation, enabling the control of multiple valves with minimal operator input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple control knobs are used for each burner in traditional systems, then each burner can be controlled independently and reliably, but the number of control knobs increases, increasing device complexity and manufacturing costs
Solution Approach 1:
A single control knob is designed to perform multiple functions by sequentially controlling different burners. The controller enables the single knob to select and operate multiple burners in sequence, replacing the traditional requirement for multiple dedicated knobs while maintaining reliable control over each burner through programmed operation sequences
2Device complexity
If digital gas systems are used where control knobs are not physically connected to valves, then control knobs can be positioned anywhere and the number of knobs can be reduced, but the system requires more complex electronic control mechanisms
Solution Approach 1:
The system employs periodic cycling through different burners using a single control knob. The controller is programmed to sequentially activate and control multiple burners in a predetermined sequence, allowing the operator to control all burners with one knob through repeated cyclic operation rather than requiring simultaneous control of multiple valves
Solution Approach 2:
An electronic controller acts as an intermediary between the single control knob and multiple gas valves. The controller receives input from the single knob and translates it into appropriate valve control signals, mediating the connection between the simplified interface and the complex valve system without requiring direct physical connection between each knob and valve
3Ease of operation
If a single control selector is used to control multiple burners, then the user interface is simplified and aesthetics are improved, but the control mechanism becomes more complex requiring processor-based control
Solution Approach 1:
The patent replaces the traditional mechanical connection between multiple control knobs and multiple valves with an electronic control system. A single control knob connected to a controller uses electronic signals and programmed logic to control multiple electronic gas valves, substituting mechanical complexity with electronic control while simplifying the user interface
Data Source
AI summary
A system for an appliance having a plurality of burners operated by a plurality of gas valves includes a plurality of selector buttons to assign a single control selector to a specified burner and a plurality of dedicated off buttons, assigned to the burners.