Pressure-control type electric pressure cooker

Abstract

The invention discloses a pressure-control type electric pressure cooker. A sealed body is formed by sequentially connecting a pot cover, a seal ring, an inner pot and an outer pot; a plurality of belleville springs, which are provided with opening grooves, are arranged between a heating plate and the outer pot; upper supporting rings are formed by horizontally flanging the small-diameter ends of the belleville springs towards inner sides, and lower supporting rings are formed by the big-diameter ends of the belleville springs; an elastic deformation area is formed by a conical wall parts between each of the upper supporting rings and each of the lower supporting rings; the elastic deformation areas penetrate through the upper supporting rings in a radial direction and extend to conical body parts, and the opening grooves that contour lines projected on a horizontal plane are in a cross form are formed; the opening grooves are of gradually expanded structures with upsides smaller than downsides from openings to bottoms; the lower supporting rings are supported on the bottom of the outer pot; the upper supporting rings are propped against supporting legs of the heating plate; and the supporting legs and the belleville springs are integrally positioned with and connected to the outer pot by virtue of fixed screws. The amount of elastic deformation of the electric pressure cooker is effectively improved by virtue of the belleville springs, and the change in induction pressure of a pressure detection device is more conveniently to be detected, so that the precision and the safety stability of pressure control are improved.

Description

technical field [0001] The invention relates to the technical field of kitchen cooking appliances, in particular to a pressure-controlling electric pressure cooker. Background technique [0002] At present, in the cooking utensil industry, cooking electric pressure cookers that can automatically adjust the pressure are generally adjusted by assembling elastic parts, and the elastic deformation of the elastic parts between the heating plate and the outer pot is used to generate corresponding displacements for precise pressure control. . However, the elastic parts used in the electric pressure cookers of the prior art are usually flat elastic plates. Although the structure is simple and easy to process, the relative displacement provided by the elastic deformation of the flat elastic parts is small, and the pressure control accuracy is low. When the pressure is too large When the deformation is large, it will cause a large attenuation and it is difficult to reset, resulting i...

AI Technical Summary

Problems solved by technology

Although the elastic gasket used in this electric pressure cooker is low in cost and easy to process, it has small elastic deformation and low pressure control accuracy.

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