Pressure control structure of pressure cooking appliance

Abstract

The invention provides a pressure control structure of a pressure cooking appliance, belonging to the technical field of pressure cooking appliances. The structure comprises a pot cover, an external pot, an internal pot, a detecting and collecting part for detecting the displacement amount, and an electric control device for controlling the electric heater according to the information of the detecting and collecting part, the structure is characterized in that the pot cover is buckled to the internal pot through pot teeth; an elastic member is arranged between the pot tooth surface of the opening part of the external pot and the combination surface of the opening part of the internal pot; a displacement linking device is arranged below the elastic member or the internal pot; the detecting and collecting part is located on the lateral part or the bottom of the external pot; the displacement information of the elastic member or the pot body is transmitted to the electric control device by the detecting and collecting part. For the prior art, requirement on the material of the elastic pot teeth is high and cost is increased; in the invention, the pot opening surface is equipped with the elastic member so as to control the pressure correctly, and the strength of the buckling part of the original pot tooth is not change; besides, by using the elastic member as the support part of the internal pot, the bottom of the external pot does not need to bear pressure, the manufacturing cost is reduced, and the processing difficulty is obviously reduced.

Description

technical field [0001] The invention belongs to the technical field of pressure cooking appliances, in particular, a structure for controlling an electric heater driven by steam power to realize pressure control in a pot. Background technique [0002] The pressure control methods of pressure cooking appliances on the market are mainly the following two [0003] One is temperature measurement and pressure control, which mainly installs a temperature measurement device such as a thermistor on the cover or bottom, and senses the temperature value in the pot through the temperature measurement device, and then passes the corresponding relationship between temperature and pressure (between 100 degrees and 120 degrees Celsius). The corresponding relationship between degrees is about 1 degree / 5kPa) for fuzzy control of pressure, but because the temperature measurement is greatly affected by external environmental factors, such as material, external ambient temperature, manufacturin...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the defects of high processing difficulty, high cost and inaccurate pressure control precision in the prior art, the present invention provides a pressure control structure of pressure cooking utensils with simple structure, easy processing, low cost, high control precision and stable pressure control

Images