Gas Grill Temperature Control Using Sensor-Driven Gas Flow
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Solution Overview
Problem
Conventional gas grills lack the ability to control temperature within the grilling chamber effectively when the cover is closed, requiring users to repeatedly open the cover to monitor food and adjust flames, leading to inefficiencies in cooking and energy use.
Innovation Solution
A temperature-controllable gas grill equipped with a temperature sensor, gas controller, and main controller that regulate gas flow through a solenoid valve to maintain set temperature ranges within the grilling chamber, allowing for automatic adjustment of gas flow based on sensed temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the cover is closed to grill food, then the grilling environment is maintained, but the user cannot see the food and must repeatedly open the cover to check it
Solution Approach 1:
The patent implements a temperature sensing system with a temperature sensor positioned in the grilling chamber that continuously monitors temperature and provides feedback to the control system. This allows the user to monitor grilling conditions without opening the cover, eliminating the need for repeated cover opening while maintaining environmental stability.
2Ease of operation
If manual control of burners is used, then the user can adjust flames by experience, but the user must repeatedly open the cover to check food and control flames
Solution Approach 1:
The control system automatically regulates the burner based on temperature sensor feedback without requiring manual intervention. The system compares the sensed temperature with the target temperature and automatically adjusts the gas valve to maintain the desired temperature, making the system self-regulating and eliminating repeated manual operations.
Solution Approach 2:
The closed-loop control system continuously monitors temperature and provides feedback to the gas valve control, enabling automatic flame adjustment based on actual grilling conditions without requiring user intervention.
3Manufacturing precision
If temperature control is added to the gas grill, then precise temperature regulation is achieved, but the device complexity increases
Solution Approach 1:
The patent employs a feedback control mechanism where the temperature sensor continuously monitors the grilling chamber temperature and sends signals to the main controller, which adjusts the gas valve accordingly. This closed-loop system achieves precise temperature control through simple feedback comparison between sensed and target temperatures.
Solution Approach 2:
The patent replaces manual mechanical control of the gas valve with an automated electromagnetic control system. The main controller electronically actuates the gas valve based on temperature feedback, substituting manual mechanical adjustment with automated electronic control for more precise temperature regulation.
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
Enables precise temperature control within the grilling chamber, optimizing cooking conditions and reducing energy consumption by allowing users to set and maintain desired temperatures without constant manual intervention.
Implementation Method 1
The temperature sensor senses a temperature in the grilling chamber and providing a temperature signal accordingly
Implementation Method 2
The solenoid valve is provided in the first passage to be controlled to open and close the first passage
Implementation Method 3
The burner is provided in the base and is connected to the gas valve. Gas is supplied to the burners
Data Source
AI summary
A temperature-controllable gas grill includes a base, a cover, a gas valve, several burners, and a temperature controlling device. The cover is provided on the base to form a grilling chamber between the base and the cover. The gas valve is connected to the gas pipe. The burners are provided in the base and are connected to the gas valve. The temperature controlling device includes a gas controller, a temperature sensor, and a main controller. The temperature sensor senses a temperature in the grilling chamber and provides a temperature signal accordingly. The main controller is electrically connected to the temperature sensor to receive the temperature signal. The main controller changes a gas flow supplied to the burners according to the temperature signal to control the temperature in the grilling chamber to control the temperature in the grilling chamber.