Water deficiency detection method, water deficiency detection device and steam cooking utensil

Abstract

The invention provides a water deficiency detection method, a water deficiency detection device and a steam cooking utensil. The water deficiency detection method includes: acquiring an interval of disconnection time and connection time of a heating tube mounted in a steam generator; judging whether the interval is larger than a preset threshold or not; if yes, determining that the steam generator is in the state of water deficiency. According to the technical scheme, when the interval of the disconnection time and connection time of the heating tube in the steam generator is larger than the preset threshold, the steam generator being in the state of water deficiency is accurately determined, accuracy in water deficiency detection can be improved, and power resources wasted by cyclic heating of the steam cooking utensil can be avoided.

Description

technical field [0001] The invention relates to the technical field of steam cooking, in particular to a water shortage detection method, a water shortage detection device and a steam cooking utensil. Background technique [0002] In recent years, people have paid more and more attention to healthy eating, and their requirements for cooking effects have also become higher and higher. Gradually, people have realized that steaming and cooking can actually meet the requirements very well. Since cooking (i.e. steam heating) relies on the huge latent heat released when the steam liquefies to heat the food, there are many advantages: first, the cooking speed is fast; second, due to the easy diffusibility of the gas, the food is heated evenly, so It avoids part of the overheating and burning that leads to the reduction of nutritional value; third, because the oxygen concentration in the air is reduced during steam cooking, it plays a very good role in protecting most nutrients that...

AI Technical Summary

Problems solved by technology

The moment of water shortage can be inferred by determining the rate of decline of the water level within a certain range. Although the conversion of the rate of decline of the water level can predict the time of water shortage in the water tank, the water level is very low at the beginning (only one of the metal plates is in contact with it) case), it cannot be calculated or even detected at all, and there is also a large possibility of false positives

In addition, if the viscosity of the water is high, if a water film is formed between the two metal plates, it will also lead to the situation that the water shortage should have been reported but not detected.

[0006] Method 3: Set a thermostat in the steam generator. The thermostat is disconnected at 120°C and reset at 90°C. In this way, the water shortage in the water tank is detected. The equipment control circuit does not know that the water shortage has occurred. Even if the water tank is short of water, it is still in circulation heating, and the circulation heating can only be ended when the predetermined cooking time is reached, which wastes power resources, and the food may not be steamed when the heating time ends

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