Cooking appliance
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Solution Overview
Problem
Existing gas cooking appliances with spark plug ignition systems face issues such as incorrect spark ignition due to dirt or dampness and require complex cleaning, while also having asymmetrical designs due to the spark plug's presence.
Innovation Solution
A gas cooking appliance with a pulse generator that sends electric pulses to ignite the burner directly between the burner and a flame detector, eliminating the need for a spark plug and incorporating insulating means to ensure efficient ignition and easy cleaning, resulting in symmetrical burners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a spark plug ignition system is used, then the burner can be ignited, but ignition problems occur due to dirt or dampness in the spark plug
Solution Approach 1:
The invention extracts and eliminates the spark plug component from the ignition system. Instead of using a spark plug that is susceptible to dirt and dampness, the system uses a pulse generator that creates an electric arc directly between the burner and the flame detector, removing the problematic component entirely while maintaining ignition functionality.
2Ease of manufacture
If a spark plug is used for ignition, then the burner can be ignited, but cleaning becomes complex
Solution Approach 1:
By removing the spark plug from the system, the invention eliminates the need for cleaning operations related to spark plug maintenance. The simplified ignition system consisting of the pulse generator and direct arc between burner and flame detector requires no cleaning, thereby improving ease of manufacture and reducing device complexity.
3Shape
If a spark plug is installed, then ignition can occur, but the burner becomes asymmetrical due to the spark plug's presence
Solution Approach 1:
The invention removes the spark plug that causes asymmetry in the burner design. The pulse generator system creates an electric arc that can be positioned symmetrically or integrated into the burner structure without creating the asymmetrical appearance caused by a protruding spark plug, thereby improving the burner's aesthetic symmetry while reducing overall device complexity.
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 solution provides a more efficient ignition system, prevents common ignition problems, simplifies cleaning, and achieves symmetrical burner designs by eliminating the spark plug and using insulating elements to generate sparks between the burner and flame detector.
Implementation Method 1
a pulse generator configured for sending at least one electric pulse generating a spark which ignites the burner
Implementation Method 2
insulating means insulating the burner with respect to ground, such that when the pulse generator of the ignition device sends at least one electric pulse, a spark capable of igniting the burner is generated between the burner and the flame detector
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
Gas cooking appliance comprising at least one burner (3), an ignition device (11) configured for igniting the burner (3), the ignition device (11) comprising a pulse generator (13) configured for sending at least one electric pulse generating a spark which ignites the burner (3), and a flame detector (5) configured for detecting the presence/absence of flame in the burner (3). The pulse generator (13) is in electrical contact with the burner (3) and the flame detector (5) is connected to ground, the cooking appliance (1) further comprising insulating means (15) insulating the burner (3) with respect to ground, such that when the pulse generator (13) sends at least one electric pulse, an electric spark capable of igniting the burner (3) is generated between the burner (3) and the flame detector (5).