Temperature control method and apparatus for cookware, and cookware and storage medium

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Solution Overview

Problem

Existing baking machines with temperature sensors at the center of the baking tray fail to detect temperature reductions accurately when food is placed at the edge, leading to unreliable cooking temperatures due to delayed heating device activation.

Innovation Solution

A temperature control method and apparatus with multiple temperature sensors at different positions on the heating area, allowing for real-time temperature monitoring and independent control of heating devices based on preset conditions, ensuring consistent cooking temperatures across the entire surface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a temperature sensor is disposed at the center position of the baking tray, then the temperature control is simple, but the temperature detection accuracy is insufficient when food is placed at the edge region

Engineering Contradiction:
Improvetemperature control structureVSAvoidtemperature detection accuracy
Core Design Contradiction:
Device complexityVSMeasurement precision

Solution Approach 1:

The single center temperature sensor is segmented into multiple temperature sensors distributed at different positions (center and edge regions) of the baking tray. This segmentation allows independent temperature detection at various locations, resolving the contradiction by maintaining simple device structure while improving temperature detection accuracy through multi-point monitoring.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Multiple temperature sensors (center sensor and edge sensors) are merged into a unified temperature control system that collectively monitors the entire baking tray surface. This merging enables comprehensive temperature detection without significantly increasing system complexity, as all sensors feed into the same control logic.

Inventive Principle:
Principle #5Merging (Combining)

2Adaptability or versatility

If food is placed at the edge region of the baking tray, then the cooking flexibility is improved, but the temperature detection reliability deteriorates due to delayed heating device activation

Engineering Contradiction:
Improvefood placement flexibilityVSAvoidtemperature control reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

Edge temperature sensors are positioned in advance at regions where food may be placed, enabling preliminary detection of temperature changes before they affect the center region. This preliminary action ensures that the control system can respond immediately to temperature drops regardless of food placement location, maintaining temperature control reliability.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback control by continuously monitoring temperature at multiple positions and adjusting heating device operation based on real-time temperature data from both center and edge sensors. This feedback mechanism ensures reliable temperature control whether food is placed at the center or edge regions.

Inventive Principle:
Principle #23Feedback

3Extent of automation

If multiple temperature sensors are arranged at different positions, then the temperature control intelligence is improved, but the device complexity increases

Engineering Contradiction:
Improvetemperature control intelligenceVSAvoidsensor arrangement complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

Temperature sensors are strategically positioned at specific locations (center and edge regions) rather than uniformly distributed, creating local quality monitoring zones. This approach improves temperature control intelligence by focusing detection on critical areas while minimizing the total number of sensors, thus avoiding excessive device complexity.

Inventive Principle:
Principle #3Local quality

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

Improves the flexibility and intelligence of temperature control, ensuring reliable cooking temperatures by starting or stopping heating devices based on synthetic temperature judgments from multiple sensors, enhancing cooking efficiency and safety.

Implementation Method 1

temperature sensors arranged at different positions of a first heating area... temperature values detected by the plurality of temperature sensors are collected

Methodology Applied
Scientific EffectThermal energy detection:

Implementation Method 2

the first heating device is started... the first heating device is stopped

Methodology Applied
Scientific EffectJoule heating: Joule Heating

Data Source

PatentEP3754453B1Temperature control method and apparatus for cookware, and cookware and storage medium
Publication Date: 2023.12.27 FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
  • EP3754453B1 patent drawingFigure 1~2
  • EP3754453B1 patent drawingFigure 3
  • EP3754453B1 patent drawingFigure 4~5

AI summary

Disclosed is a temperature control method for cookware. The cookware comprises a first heating apparatus, and a plurality of temperature sensors arranged at different positions of a first heating area. The method comprises: collecting temperature values detected by a plurality of temperature sensors; determining the minimum temperature value and the maximum temperature value of a first heating area from among all the collected temperature values; when the minimum temperature value and the maximum temperature value of the first heating area satisfy a pre-set temperature increase condition, starting a first heating apparatus; and when the minimum temperature value and the maximum temperature value of the first heating area satisfy a pre-set temperature reduction condition, turning off the first heating apparatus. Further disclosed are a temperature control apparatus for cookware, and cookware and a storage medium.