Stacked Ring Burner Assembly for Uniform Pot-Bottom Heating
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Solution Overview
Problem
Existing burner assemblies with multi-ring arrangements suffer from poor air circulation and flame uniformity due to complex structures, leading to inefficient heating and potential safety hazards.
Innovation Solution
A burner assembly design featuring a first ring-shaped burner with inclined flame holes and a second ring-shaped burner with a larger diameter positioned above the first, allowing for flame spread and improved air circulation, along with an integrated ignition device for enhanced ignition success and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple burners are combined in a multi-ring arrangement, then the heating coverage is increased, but the structure becomes complicated resulting in poor air circulation and poor flame uniformity
Solution Approach 1:
The burner is divided into two separate ring-shaped burners (first burner and second burner) with different inner diameters, where each burner has its own flame holes. This segmentation allows independent optimization of each burner's structure and flame characteristics, achieving both comprehensive heating coverage and simple structure.
2Manufacturing precision
If the second burner has a larger inner diameter than the first burner, then the flame uniformity over the pot bottom is improved, but the air circulation remains poor in complex multi-ring structures
Solution Approach 1:
The patent transitions from a single-plane burner design to a two-dimensional stacked arrangement with the second burner positioned above the first burner. This dimensional change allows larger inner diameter for the second burner to achieve better flame uniformity while maintaining simple structure through vertical stacking rather than horizontal expansion.
3Device complexity
If conventional burners are used, then the structure is simple, but the ignition success rate is low and safety is compromised
Solution Approach 1:
The ignition device is pre-positioned between the first and second burners, ready to ignite the first burner which then serves as a pilot to ignite the second burner. This preliminary arrangement of the ignition device and the flame spread path ensures high ignition success rate while maintaining structural simplicity.
4Manufacturing precision
If the first burner is ignited successfully, then the second burner can be ignited by flame upward spread ensuring flame uniformity, but the distance and arrangement must be optimized
Solution Approach 1:
The first burner is designed to produce sufficient flame intensity not only for its own operation but also to reliably ignite the second burner positioned above it. This partial over-design of the first burner's flame output ensures dependable flame spread to the second burner while maintaining appropriate spacing.
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 design ensures uniform flame coverage over the pot bottom, increasing heating efficiency and safety by optimizing flame intensity, air flow, and ignition reliability.
Implementation Method 1
The first burner has first flame holes formed on an inner circumferential edge of the first burner... when ignition of the first burner is successful
Implementation Method 2
the second burner can be ignited from an inner circumference of the second burner in a manner of flame upward spread
Implementation Method 3
An angle θ1 of a plane where the first upper plate is located relative to a depth direction of each first flame hole is greater than 0° and smaller than 90°... each first flame hole of the first burner is inclined inwardly into a conical shape
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention discloses a burner assembly and a cooker. The burner assembly includes a first burner and a second burner. The first burner is of a ring shape and has first flame holes formed on an inner circumferential edge of the first burner. The second burner is of a ring shape and has second flame holes formed on an inner circumferential edge of the second burner. The second burner is disposed above the first burner and has an inner diameter greater than an inner diameter of the first burner. In the burner assembly, the second burner is disposed above the first burner, and the inner diameter of the second burner is greater than the inner diameter of the first burner. Therefore, when ignition of the first burner is successful, the second burner can be ignited from an inner circumference of the second burner in a manner of flame upward spread, to ensure flame uniformity of a pot bottom. This design is simple in structure, and convenient and quick.