Cooking appliance comprising a radiant heater
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Solution Overview
Problem
Existing radiant burners face inefficiencies due to energy losses through the insulating ring and a need for improved temperature control to prevent overheating, which affects cooking performance and safety.
Innovation Solution
A radiant burner design featuring an insulating base, a heating element, a casing, and a temperature sensor that measures and controls the temperature within the burner, allowing for electronic power management and safety cutoffs, with the sensor supported by an insulating body orthogonal to the base, reducing the height of the insulating ring and enhancing thermal efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the temperature sensor passes through the insulating ring to measure temperature, then the temperature control function is achieved, but energy losses through the insulating ring increase
Solution Approach 1:
An insulating body acts as an intermediary component between the temperature sensor and the insulating ring. The temperature sensor is supported by this insulating body that extends orthogonal to the insulating base, allowing the sensor to measure temperature without directly passing through the insulating ring, thereby reducing thermal energy loss through this critical insulating component.
2Productivity
If the insulating ring height is reduced to bring the heating element closer to the cooktop, then heating efficiency improves, but thermal insulation capacity decreases
Solution Approach 1:
The insulating body serves as a mediator that enables the temperature sensor to function without requiring a tall insulating ring. This allows the insulating ring height to be minimized for improved heating efficiency while the insulating body provides the necessary thermal isolation for accurate temperature measurement.
Solution Approach 2:
The temperature sensor is positioned in a different spatial dimension by extending the insulating body orthogonal to the insulating base. This dimensional change allows the sensor to access temperature data without compromising the horizontal insulation effectiveness of the ring, enabling reduced ring height while maintaining measurement capability.
3Measurement precision
If electronic control means are added to manage power supply, then temperature control precision improves, but device complexity increases
Solution Approach 1:
The electronic control means performs multiple functions: it monitors temperature through the sensor, compares the measured temperature with reference values, manages power supply to the heating element, and activates safety cutoffs when necessary. By consolidating these functions into a single control system, the patent achieves precise temperature control without proportionally increasing overall device complexity.
Solution Approach 2:
The electronic control means implements a feedback mechanism by continuously receiving temperature data from the sensor, comparing it with reference temperature values, and adjusting power supply accordingly. This closed-loop feedback system enables precise temperature control and automatic safety cutoffs, improving control precision while using a relatively simple control architecture.
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
This design reduces energy losses, improves cooking efficiency by maintaining a constant temperature, and ensures safety by preventing overheating, while adhering to safety regulations by maintaining a safe distance between the heating element and the glass ceramic cooktop.
Implementation Method 1
a temperature sensor to measure the temperature inside the radiant burner
Implementation Method 2
at least one heating element
Implementation Method 3
an insulating base, at least one heating element, a casing which houses therein the insulating base
Data Source
AI summary
A radiant burner for a cooking appliance. The radiant heater includes a heating element residing on or in an insulating base, the insulating base having a recess located in a bottom thereof. The insulating base is housed in a casing that has a recess residing in the recess of the insulating base. A part of the casing that forms the recess includes a guide. A temperature sensor configured to measure a temperature inside the radiant burner is supported by an insulating body. A portion of the insulating body is located inside the insulating base and inside the guide formed by the casing with the insulating body extending vertically through the insulating base and the guide.