Gas stove temperature-control system, gas stove with the same and method for controlling temperature of gas stove

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Solution Overview

Problem

The existing gas stove systems face safety risks due to the potential for explosions when the temperature inside the stove does not reach the combustion temperature during the gas ignition process, leading to an increased ratio of gas to air.

Innovation Solution

A gas stove temperature-control system that includes a power board, rechargeable battery, stove cover limit switch, gas valve, electromagnetic valve, ignition pin, burner, and thermocouple, which detects the thermoelectric potential difference to control the gas supply, ensuring the temperature reaches the combustion threshold before ignition and adjusting the gas flow based on the stove's temperature to prevent explosions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If gas is supplied too much while the temperature inside the gas stove does not reach the combustion temperature of the gas, then the gas to air ratio increases, but this causes an explosion hazard

Engineering Contradiction:
Improvegas supply quantityVSAvoidexplosion hazard
Core Design Contradiction:
Quantity of substanceVSObject-affected harmful factors

Solution Approach 1:

The system performs preliminary heating to raise the temperature inside the gas stove to the combustion temperature threshold before allowing gas supply. The control board activates the heating element first, monitors the temperature via the temperature detection module, and only enables the gas valve once the safe temperature threshold is reached, preventing the harmful condition of cold gas accumulation

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors the temperature inside the gas stove using a temperature detection module and uses this feedback to control the gas valve. The control board adjusts gas supply based on real-time temperature data, ensuring gas is only supplied when the temperature is sufficient for safe combustion, thereby preventing explosion hazards from excessive gas accumulation

Inventive Principle:
Principle #23Feedback

2Reliability

If the temperature inside the gas stove is monitored continuously to prevent explosions, then safety is improved, but the system complexity increases

Engineering Contradiction:
ImprovesafetyVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system replaces complex mechanical temperature monitoring and control mechanisms with electronic components. A temperature detection module (sensor) electronically monitors temperature, and a control board with embedded logic electronically controls the gas valve, simplifying the overall system while maintaining high safety standards through automated electronic feedback control

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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 system effectively prevents explosions by ensuring the temperature reaches the combustion threshold before igniting the gas, thereby enhancing the safety of the gas stove by controlling the gas supply based on detected thermoelectric potential differences and temperature thresholds.

Implementation Method 1

a thermocouple connected to the power board and configured to detect whether the burner is burning

Methodology Applied
Scientific EffectThermoelectric potential difference: Seebeck Effect

Implementation Method 2

an electromagnetic valve connected to the power board and the gas valve and used to control turn-on and turn-off of the gas valve

Methodology Applied
Scientific EffectElectromagnetic control: Electromagnet

Implementation Method 3

the temperature inside the gas stove needs to reach combustion temperature of the gas for successful ignition

Methodology Applied
Scientific EffectCombustion: Combustion

Data Source

PatentUS11415322B2Gas stove temperature-control system, gas stove with the same and method for controlling temperature of gas stove
Publication Date: 2022.08.16 ZHEJIANG FUDEER ELECTRIC APPLIANCE
  • US11415322B2 patent drawing
  • US11415322B2 patent drawing
  • US11415322B2 patent drawing

AI summary

This application provides a gas stove temperature-control system, the gas stove with the same and a method for controlling temperature of the gas stove. The gas stove temperature-control system including a power board and a rechargeable battery supplying power to the power board further includes: a stove cover limit switch connected to the power board; a gas valve connected to the power board; an electromagnetic valve connected to the power board and the gas valve; an ignition pin connected to the power board; a burner connected to the gas valve and the ignition pin and; and a thermocouple connected to the power board.