Instantaneous kettle control circuit and control method based on pid algorithm

Abstract

The invention discloses a PID (Proportion Integration Differentiation) algorithm-based instant heating type kettle control circuit and a control method. The control circuit comprises an input module, a display module, a core control circuit module, a temperature detection module, a water inlet, a heating pot and a water outlet; the water inlet comprises a water pump and a first thermistor, the heating pot comprises a heat pump and a second thermistor, the water outlet comprises a third thermistor, the first thermistor, the second thermistor and the third thermistor are respectively connected with the temperature detection module, and the core control circuit module is respectively connected with the temperature detection module, the water pump, the heat pump, the input module and the display module. The method utilizes the segmented PID algorithm to regulate the heating power of the heat pump and the pumping power of the water pump in real time according to influent water temperature, the hot water temperature in the heating pot and effluent water temperature. The method has the characteristics of high-efficient energy saving, high control precision and high robustness.

Description

technical field [0001] The invention relates to the research field of an instant kettle, in particular to a control circuit and a control method for an instant kettle based on a PID algorithm. Background technique [0002] With the progress of society and the continuous development of technical level, people's requirements for hot water bottles are constantly improving, and their needs are becoming more and more diverse. In traditional hot water kettles, only when the hot water is fully boiled can hot water be obtained. Not only the temperature of the hot water cannot be set, but also it takes a long time to wait. In addition, when the next cup is about to be drunk, the water in the pot may have cooled down, so it has to be boiled again, which not only causes a waste of energy, but also is harmful to human health by drinking water that has been boiled many times. [0003] Although there are many instant hot water kettles on the market, they wait for a long time for the wate...

AI Technical Summary

Problems solved by technology

Traditional hot water kettles can only get hot water when the hot water is completely boiled. Not only the hot water temperature cannot be set, but also it takes a long time to wait

In addition, when it is time to drink the next cup, the water in the pot may have cooled down, so it has to be boiled again, which not only causes a waste of energy, but also drinks boiled water many times, which is harmful to human health

[0003] Although there are many instant hot water kettles on the market, they wait for a long time for the water to come out or can only heat a small amount of hot water each time. Due to the thermal inertia of the system, the temperature of the water out has a large error, which cannot meet people's needs. Demand for hot water with high output and temperature control accuracy

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