Detection method, device and pressure cooking pot of temperature protection point

Abstract

The invention provides a method and a device for detecting a temperature protection point and a pressure cooking pot. The detection method comprises the following steps of detecting the initial position change of a float in the pressure cooking device under the action of inner pressure; when the initial position change is detected, determining the state of the float at zero inner pressure; detecting the temperature value at zero inner pressure, and recording the temperature value as a first temperature value; determining the air pressure difference between the preset inner pressure value and the inner pressure value at zero inner pressure, and recording the air pressure difference as a first air pressure difference; according to the mapping relationship between the preset air pressure difference and the temperature difference, determining the first temperature difference value corresponding to the first air pressure difference; according to the sum of first temperature value and first temperature difference value, determining the temperature protection point. By adopting the technical scheme, the detection method has the advantages that the temperature protection point under different pressures is determined, and the electric safety of pressure cooking pot is effectively improved.

Description

technical field [0001] The invention relates to the technical field of household electrical appliances, and more specifically, to a detection method for a temperature protection point, a detection device for a temperature protection point, and a pressure cooking pot. Background technique [0002] Pressure cooking pots usually adopt the principle of high-pressure cooking to provide users with soft and delicious food. However, pressure cooking pots may explode due to excessive pressure inside the pot, which seriously affects the personal safety and use experience of users. [0003] In related technologies, mechanical pressure relief and software pressure relief are usually used, which respectively have the following technical defects: [0004] (1) Mechanical pressure relief usually uses a heavy hammer to buckle on the vent hole, but when the vent hole is blocked by food in the pot, there is still a danger of high pressure; [0005] (2) The software pressure relief method dete...

AI Technical Summary

Problems solved by technology

[0004] (1) Mechanical pressure relief usually uses a heavy hammer to buckle on the vent hole, but when the vent hole is blocked by food in the pot, there is still a danger of high pressure;

[0005] (2) The software pressure relief method determines the temperature protection point T0 through the temperature sensor. However, under the same temperature conditions, the internal pressure of the pressure cooking pot in the high altitude area is greater than the internal pressure of the pressure cooking pot in the low altitude area. Also unable to ensure the accuracy of the temperature protection point and the safety of the pressure cooking pot

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