A fresh-keeping electric pressure cooker air extraction control method

Abstract

The invention relates to the technical field of electric pressure cooker, and discloses a fresh-keeping electric pressure cooker, which comprises a pot body, an outer pot, an inner pot, a sealing ring, an outer cover and an inner cover, wherein a ring with an upward opening is arranged outside the mouth of the inner pot. Groove, the sealing ring includes an upper lip and a lower lip, the upper lip fits the inside of the inner cover, and the lower lip extends into the circumferential groove when the inner cover is fastened; a hose is connected to the inner cover, and one end of the hose is sealed and connected to the The inner side of the inner cover; the pot body is provided with a micro vacuum pump, and the other end of the hose is connected to the micro vacuum pump; the inner cover is provided with a pressure detection device for detecting the gas pressure in the inner pot. The invention solves the problem of short preservation time for the remaining food in the pot, starts the micro-vacuum pump, draws out the residual air in the pot, and the pressure in the pot becomes smaller so that the lower lip is close to the inner wall of the circumferential groove, and the outside air cannot enter, achieving For the purpose of keeping the remaining food fresh for a long time, there is no need for the user to pour out the remaining food for fresh keeping, which greatly facilitates the use of the user.

Description

technical field [0001] The invention relates to the technical field of electric pressure cookers, and more particularly relates to a fresh-keeping electric pressure cooker and a method for controlling air extraction thereof. Background technique [0002] The electric pressure cooker is heated by an electric heating plate, the heating method is efficient and energy-saving, and the operation is safe and reliable. From the market performance point of view, it has gradually replaced the traditional pressure cooker. Electric pressure cooker is an upgraded product of the optimized combination of traditional pressure cooker and electric rice cooker. It combines the advantages of pressure cooker and electric rice cooker. It uses electric energy for heating in a sealed state inside the pot. It is environmentally friendly, convenient and fast, and can satisfy many It can meet the cooking needs in various aspects, and realize automatic cooking in multiple modes through the intelligent...

AI Technical Summary

Problems solved by technology

[0003] With the enrichment of people's material conditions, sometimes users use electric pressure cookers to cook more food, and there are often some food left in the pot after eating. Throwing away these foods will feel a bit wasteful. If they are kept in the pot, due to the residual oxygen in the pot , and the pressure inside and outside the pot is basically balanced so that the sealing ring cannot be completely sealed, and the air can circulate freely. fresh preservation

Both methods of preservation require pouring out the food, and then pouring the food into the pot for reheating when eating again, especially cold storage requires more energy to reheat the food, which brings inconvenience to users

[0004] Need a kind of electric pressure cooker that can extract residual air in the pot for this reason, also will keep sealing state in the pot after extracting residual air, but do not have this kind of electric pressure cooker and control method in the prior art

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