Concentric Burner Assembly with Automatic Cookware Size Detection
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Solution Overview
Problem
Current burner assemblies for gas cooktops with multiple concentric burner segments can be confusing for users, leading to inefficiencies such as overheating or wasted heat due to improper utilization of the burner sections, as users may not correctly control the heat output for different-sized cooking articles.
Innovation Solution
A burner assembly with a housing defining concentric outlet sections and a switch assembly featuring a lever and actuator pin that automatically adjusts the fuel flow to either the inner or both burner sections based on the size of the cooking article, ensuring appropriate heat output by determining the pin's position and controlling the valve to open or close the fuel supply to the outer section.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If users manually control the heat output and operation of the outer large burner section, then the burner assembly can provide flexibility for different cooking needs, but users may find the controls confusing or misuse them, leading to overheating of small cooking articles and wasted heat
Solution Approach 1:
The burner assembly automatically detects the size of the cooking article through the actuator pin mechanism and self-regulates which burner sections are activated. The system serves itself by using the physical presence and size of the cookware to trigger the appropriate configuration, eliminating the need for user interpretation of controls.
Solution Approach 2:
The actuator pin provides mechanical feedback based on the size of the cooking article placed on the burner. When a small article is detected, the pin remains in a position that activates only the inner burner section. When a large article is detected, the pin moves to activate both inner and outer sections, creating a feedback loop that automatically adapts the system to the cooking needs.
2Adaptability or versatility
If the burner assembly provides multiple concentric burner sections for different cooking article sizes, then cooking flexibility is improved, but the device complexity increases with additional controls and sections
Solution Approach 1:
The system automatically determines which burner sections to activate based on the physical detection of cooking article size. The actuator pin mechanism self-regulates the configuration without requiring complex electronic sensors, microcontrollers, or user interface complexity, thereby maintaining mechanical simplicity while achieving adaptability.
Solution Approach 2:
The actuator pin serves as a simple mechanical intermediary between the cooking article and the fuel supply system. It translates the physical size of the cookware into a mechanical position that directly controls valve activation, providing a straightforward linkage that avoids complex control systems.
3Power
If the actuator pin is positioned to activate both burner sections, then heat output is maximized for large cooking articles, but small cooking articles may be overheated and energy is wasted
Solution Approach 1:
The actuator pin creates a feedback mechanism where the size of the cooking article directly influences which burner sections are activated. The system continuously monitors the cooking article size through the pin's position and adjusts the heat output accordingly, ensuring that energy is not wasted on heating areas that do not require it.
Solution Approach 2:
The burner assembly dynamically adapts its configuration based on real-time detection of cooking article size. The system transitions between different operational states (inner section only, or both sections) depending on the detected load, allowing the heat output to be dynamically matched to the actual cooking requirements rather than operating at fixed high power.
Data Source
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AI summary
A burner assembly (10) for a cooktop (12) includes a housing (14) that defines first and second concentric outlet sections (16),(18), the first outlet section (16) being inset relative to the second outlet section (18). The housing (14) further defines a first aperture (20) between the first outlet section (16) and the second outlet section (18). A first switch assembly (22) is mounted within the housing (14) and includes a lever (24) coupled with the housing (14) and a first pin (26) extending from the lever (24) and upwardly through the aperture to an end (28) positioned above the housing (14). The end (28) of the first pin (26) is moveable in a first direction (30) inward and outward with respect to the housing (14) by rotation of the lever (24) to control a flow of energy to the second outlet section (18).