Electromagnetic heating system and method and device for detecting thermistor of electromagnetic heating system

By recording the static and dynamic temperature values ​​of the electromagnetic heating system and calculating the temperature difference to determine the thermistor failure, the problem of misjudgment in the existing technology is solved and the safety and accuracy of the system are improved.

CN109307562AActive Publication Date: 2019-02-05FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2017-07-28
Publication Date
2019-02-05

AI Technical Summary

Technical Problem

There are misjudgments in thermistor failure detection in existing electromagnetic heating systems, which affects system safety, and existing software programs lack accuracy in judging thermistor failure.

Method used

By recording the static temperature value when the electromagnetic heating system is powered on and in standby, as well as the dynamic temperature value during the heating process, the temperature difference is calculated to determine whether the thermistor has failed, thereby improving the accuracy and reliability of the judgment.

Benefits of technology

Significantly improves the accuracy of thermistor failure judgment and system safety, and avoids misjudgment.

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Abstract

The invention discloses an electromagnetic heating system, and a method and a device for detecting the thermistor of the electromagnetic heating system. The method comprises the following steps of: recording the temperature value obtained by the thermistor as a first temperature value when the electromagnetic heating system is powered on; recording the temperature value obtained by the thermistoras a second temperature value when the electromagnetic heating system is in a standby state; obtaining the maximum temperature value and the minimum temperature value of the temperature value obtainedby the thermistor in a continuously preset second preset time every other first preset time during the heating process of the electromagnetic heating system; and judging whether the thermistor is ina failure state or not according to the first temperature value and / or the second temperature value, the maximum temperature value, and the minimum temperature value. The method for detecting the thermistor of the electromagnetic heating system judges whether the thermistor fails or not according to the static temperature values at the time of power-on and standby and the dynamic temperature valuein the heating process, so that the accuracy and the reliability of the judgment are greatly improved, and the safety of the system is improved.
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Citation Information

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