Electromagnetic cooker structure capable of accurately measuring temperature

Abstract

The invention relates to an electromagnetic cooker and particularly relates to an electromagnetic cooker structure capable of accurately measuring temperature. The electromagnetic cooker comprises an electromagnetic cooker lower shell, an electromagnetic cooker upper cover ceramic board, an electromagnetic cooker power board, a main control board, an electromagnetic cooker coil panel, an electromagnetic cooker fan and an NTC (Negative Temperature Coefficient) sensor probe which are matched and connected with one another, wherein the NTC sensor probe is arranged in the middle of the electromagnetic cooker coil panel; the electromagnetic cooker power board, the electromagnetic cooker fan and the NTC sensor probe are all connected with the main control board. The electromagnetic cooker is characterized in that the lower surface of the electromagnetic cooker upper cover ceramic board is coated with a layer of metal foil and the NTC sensor probe is in contact fit with the metal foil. The temperature of the hottest area of the electromagnetic cooker upper cover ceramic board can be effectively monitored; and the temperature can be measured accurately when the cooker is moved, the sectional material of the cooker is changed or the cooker deforms.

Description

technical field [0001] The invention relates to an electromagnetic cooker, in particular to an electromagnetic cooker structure capable of accurate temperature measurement. Background technique [0002] At present, the temperature measurement of the induction cooker is an indirect temperature control. The single-chip microcomputer in the main control board directly contacts the lower surface of the ceramic plate of the upper cover through the NTC sensor component in the middle of the wire reel, so as to detect the transfer of the pot to the ceramic plate. The temperature of the lower surface, so as to adjust the power, indirectly realize the control of the temperature in the pot. The temperature detected by the NTC sensor is not the highest heating point of the induction cooker, and the thermal conductivity of the ceramic panel is poor, and it is greatly affected by various factors such as the environment, magnetic field, pot, food, etc., resulting in inaccurate temperature ...

AI Technical Summary

Problems solved by technology

The temperature detected by the NTC sensor is not the highest heating point of the induction cooker, and the thermal conductivity of the ceramic panel is poor, and it is greatly affected by various factors such as the environment, magnetic field, pot, food, etc., resulting in inaccurate temperature control

The constant temperature function of the induction cooker is in the laboratory environment, the temperature control accuracy of the pot can only reach ±20°C, and the temperature error in the user's environment greatly exceeds ±20°C. Oil temperature and food temperature are effectively controlled. Functions such as cooking soup and porridge are not practical because they are affected by inaccurate temperature control. Can't achieve good results, and finally failed to apply on the induction cooker and slowly disappeared

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