Induction cooker temperature measuring method and device and readable storage medium
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Solution Overview
Problem
Induction cookers struggle to accurately measure the temperature of containers due to the air gap between the glass ceramic panel and the container, leading to incorrect temperature readings from single or multiple temperature sensors.
Innovation Solution
A temperature measuring method for induction cookers that uses at least three temperature sensors scattered on the bottom surface of the glass ceramic panel, determining their position based on magnetic field coverage and distribution patterns, and calculates the actual container temperature by retrieving a preset temperature curve and peak value.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If temperature sensors are positioned inside the induction cooker through the glass ceramic panel, then the structure is simple and easy to manufacture, but the air gap between the panel and container bottom results in low thermal conductivity and incorrect temperature measurements
Solution Approach 1:
The patent transitions from single-point temperature sensing to multi-point distributed sensing across the glass ceramic panel. By arranging multiple temperature sensors at different positions (including edges and center), the system captures spatial temperature distribution rather than relying on a single measurement point, thereby improving measurement accuracy despite the air gap limitation.
Solution Approach 2:
The temperature measurement function is segmented across multiple independent sensors rather than relying on a single sensor. Each sensor measures temperature at its specific location, and the controller integrates these distributed measurements to calculate the overall container bottom temperature, compensating for the thermal insulation effect of the air gap.
2Measurement precision
If multiple temperature sensors are arranged on the glass ceramic panel, then temperature measurement accuracy improves, but the device complexity and cost increase
Solution Approach 1:
The patent applies local quality by strategically positioning temperature sensors at specific locations with different thermal characteristics - edge regions where heat dissipates faster and center regions where heat concentrates. This non-uniform distribution optimizes measurement representativeness while minimizing the number of sensors required, balancing accuracy with system simplicity.
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 method allows for accurate temperature measurement of containers, even when offset, by forming a temperature vector and using a temperature correction coefficient, improving electromagnetic compatibility and adaptability to various positions.
Implementation Method 1
the temperature of the bottom of the container to be measured is normally measured by the temperature sensor positioned inside the induction cooker and spaced from the container through the glass ceramic panel
Implementation Method 2
the induction cooker being configured to heat a container to be measured
Data Source
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AI summary
The present disclosure provides a temperature measuring method for an induction cooker, a temperature measuring device for the induction cooker, and a readable storage medium. The induction cooker includes a microcrystal panel and at least three temperature sensors scattered on a bottom surface of the microcrystal panel, and the induction cooker is configured to heat a container to be measured. The method includes the following operations: obtaining temperature data collected by the at least three temperature sensors and position data of each temperature sensor relative to the microcrystal panel; obtaining an actual position of the container to be measured on the microcrystal panel according to the temperature data and the position data; obtaining a preset temperature curve matching the induction cooker according to the temperature data, and extracting a peak value of the preset temperature curve; and calculating an actual temperature of the container to be measured according to the actual position and the peak value. The actual position of the container to be measured can be accurately determined according to the temperature data obtained by the temperature sensors multi-point distributed. The actual temperature of the container to be measured can be calculated more accurately according to the actual position of the container to be measured and the hump curve of the temperature data (i.e., the peak value of dot matrix curve of the temperature data).