Electric Flame Circuit Using Plasma Ionization for Gas-Free Cooking
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Solution Overview
Problem
Conventional cooking ranges, particularly gas stoves and induction stoves, pose safety hazards and inefficiencies, leading to a need for an electric fire stove with improved reliability and simplified circuit structure.
Innovation Solution
An electric ignition circuit utilizing a plasma technology that converts electric energy into heat by ionizing air, eliminating the need for fuel gas and featuring a switching power supply circuit, booster circuit, ion needle assembly, and power control circuit to generate an adjustable open flame.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional gas stoves are used, then cooking experience is good, but safety hazards such as gas explosion and contamination occur
Solution Approach 1:
The patent replaces the gas combustion system with an electric arc discharge system. The ion needle assembly generates high-voltage electric arcs that ionize air molecules to create plasma, which then combusts gas in a controlled manner. This substitution eliminates the need for direct gas handling while maintaining flame-based cooking, thereby resolving the safety hazards of gas explosions and contamination while preserving the cooking experience.
Solution Approach 2:
The patent introduces an intermediary plasma generation system between the power source and the cooking flame. The ion needle assembly acts as a mediator that converts electrical energy into plasma, which then serves as the heating source. This intermediary approach allows electric control of what would otherwise be a direct gas combustion system, eliminating gas handling risks while maintaining flame-based cooking characteristics.
2Object-affected harmful factors
If induction stoves are used, then gas explosion risk is eliminated, but heating uniformity deteriorates
Solution Approach 1:
The patent replaces the electromagnetic induction heating system with an electric arc plasma system. The ion needle assembly generates concentrated electric arcs that create high-temperature plasma, providing intense localized heating similar to traditional flame-based cooking. This substitution maintains the temperature distribution characteristics of open flame cooking while eliminating gas explosion risks, thereby resolving the heating uniformity issue inherent in induction stoves.
3Object-affected harmful factors
If electric fire stove with plasma technology is used, then safety is improved, but circuit structure complexity increases
Solution Approach 1:
The patent divides the plasma generation system into modular components: the ion needle assembly (including electrode and insulation structure), the booster circuit, and the control circuitry. Each module performs a specific function and can be independently designed, tested, and maintained. This segmentation reduces overall system complexity by creating discrete functional units rather than a monolithic complex system.
Solution Approach 2:
The ion needle assembly incorporates self-regulating characteristics where the plasma discharge automatically adjusts based on the gap distance and voltage applied. The system includes inherent safety features such as over-voltage protection and automatic shutdown when plasma stability is compromised. These self-service characteristics reduce the need for complex external control systems while maintaining safety.
4Reliability
If electric fire stove with plasma technology is used, then circuit reliability is improved, but flame power adjustability must be maintained
Solution Approach 1:
The patent implements dynamic control of the plasma generation through variable voltage output from the booster circuit. The system can adjust the electric arc intensity in real-time based on cooking requirements, allowing flame power modulation from low to high settings. This dynamic adjustability is achieved through reliable electronic control circuits that maintain stable operation across different power levels, thereby maintaining both reliability and adaptability.
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 electric ignition circuit provides a safer, more convenient cooking experience by simplifying the circuit structure and enhancing reliability, allowing for adjustable flame power without the risks of gas explosions or uneven heating.
Implementation Method 1
an output terminal of the ion needle module forms an ionization point pair with the arc-striking ion generator
Implementation Method 2
the booster circuit transmits a booster power supply signal to the ion needle assembly according to the power supply signal to control the ionization point pair to perform ionization arc-striking
Implementation Method 3
converts electric energy into heat energy by a plasma technology, and generates flame by ionizing air
Data Source
AI summary
An electric flame burner uses an electric ignition circuit in which an input terminal of a switching power supply circuit is connected to a power supply, an input terminal of a booster circuit is connected to an output terminal of a switching power supply circuit, and an input terminal of an ion needle module is connected to an output terminal of the booster circuit. An output terminal of the ion needle module is close to an arc-striking ion generator, forming an ionization point pair. A power control circuit transmits a PWM signal to the switching power supply circuit, so that the latter outputs a corresponding signal to the booster circuit, which transmits a corresponding signal to the ion needle assembly to control the ionization point pair to achieve ignition through arc-striking, generating a flame with an adjustable output power, thereby simplifying and improving the reliability of the electric ignition circuit.