Method for electronic precise regulating water temperature for electric heating appliance

Abstract

This invention discloses a method of electronic accuracy controlling water temperature for electric heating apparatus, which immerses the heat sensitive resistor in water to detect the temperature, then outputting the data of resistance value change to computer data processing unit to obtain the function relationship of temperature change, which is used for real time monitoring the resistance value of heat sensitive resistor, when the temperature will reach the preset value, the power supply of heater disk will be cut off to avoid the temperature difference due to the afterheat and realize the accuracy temperature control.

Description

technical field [0001] The invention relates to a water temperature regulating method, in particular to a method for electronically and accurately regulating water temperature of an electric heating appliance. Background technique [0002] Electric heating appliance is a common electrical product in daily life. Electric heating appliance usually includes a water storage container, an electric heating element for heating water, and an actuator for automatically cutting off the electric heating element. When the power is turned on, the built-in electric heating element is energized to generate heat, and the electric heating element releases heat to heat the water in the container, so that the water temperature rises to the required temperature, and when the required temperature is reached by using the actuator Cut off the power supply to ensure the safety of electric heating appliances; common products of this type include electric teapots, electric water dispensers, electric ...

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Problems solved by technology

[0003] Traditional electric heating appliances do not have a temperature adjustment function, and in fact we do not necessarily need it to have a temperature adjustment function for some products during use, such as an electric kettle for boiling water. When using it, Just use it to heat the water to boiling, so that this type of product can use a mechanical switch to sense the temperature of the steam, and cut off the power when the water reaches boiling; however, life is colorful, we use it in some In some occasions, it is not necessary for electric heating appliances to have a temperature adjustment function, but in other occasions, electric heating appliances are required to have a temperature adjustment function, such as making tea. The temperature of the brewing water required for various tea leaves is It may be different, so we need to adjust the water temperature to obtain different temperature water for brewing different teas to achieve the best results, not only that, but also for brewing drinks or preparing food for babies or taking medicine etc. may produce different water temperature

The existing water temperature adjustment method usually uses a mechanical thermostat to sense the temperature of the electric heating element. When the temperature reaches the set value, the power is cut off to stop the electric heating element from working, so as to obtain the water at the set temperature. , this method of temperature adjustment, first, because the induction of the temperature of the heating element is indirect control, resulting in low temperature adjustment accuracy; The temperature value we set; thus affecting the use of electric heating appliances

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