Rapid pressure relief mechanism of electric pressure cooker and control method

Abstract

The invention relates to a rapid pressure relief mechanism of an electric pressure cooker and a control method. The rapid pressure relief mechanism comprises a cooker body and a cover. An inner pot for accommodating food materials is arranged in the cooker body, and the cover covers the upper portion of the cooker body to seal the inner pot. An MCU (micro control unit) for controlling operation ofthe electric pressure cooker is arranged in the cooker body. A pressure relief transfer cavity for step-by-step pressure relief is arranged on the cover, and can prevent direct pressure relief to avoid the food materials from being discharged out along with high-pressure gases. A pressure valve for generating and controlling pressure values is arranged on the pressure relief transfer cavity. Therapid pressure relief mechanism of the electric pressure cooker has the advantages that the pressure relief transfer cavity is arranged, alternate opening time and opening sequence of a gas inlet valve and a gas outlet valve of the pressure relief transfer cavity are controlled, the pressure is relieved step by step, and accordingly, the direct pressure relief is prevented to avoid the food materials from being discharged out along with the high-pressure gases.

Description

technical field [0001] The invention relates to a pressure vessel, in particular to a quick pressure relief mechanism for an electric pressure cooker. Background technique [0002] Electric pressure cooker products can quickly cook the ingredients thoroughly because they set a pressure exceeding 1 standard atmospheric pressure during the cooking process to increase the cooking temperature of the ingredients. However, electric pressure cooker products need to wait for a long period of time after the cooking is completed, and the natural cooling pressure is reduced to a state equal to the external air pressure before opening the lid, and the waiting time is relatively long. [0003] Conventional electric pressure cooker products generally use the pressure relief valve to open to shorten the pressure relief time, but when the pressure is released, the pot will generate violent boiling, and the internal ingredients, soup, foam, etc. will be discharged to the outside of the produ...

AI Technical Summary

Problems solved by technology

However, electric pressure cooker products need to wait for a long time for natural cooling after the cooking is completed. The pressure drops to the same level as the external pressure before opening the lid. The waiting time is relatively long.

[0003] Conventional electric pressure cooker products generally use the pressure relief valve to open to shorten the pressure relief time, but when the pressure is released, the pot will generate violent boiling, and the internal ingredients, soup, foam, etc. will be discharged to the outside of the product along with the high-pressure gas. It will cause trouble for users to clean or block the exhaust passage, resulting in safety hazards

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