Electric pressure cooker with air exhaust function and air exhaust control method

Abstract

The invention relates to the technical field of electric pressure cookers and discloses an electric pressure cooker with the air exhaust function. The electric pressure cooker comprises a cooker body, an outer pot, an inner pot, a cooker cover, a control circuit and operating keys. The outer pot is supported in the cooker body. The cooker cover comprises an outer cover body and an inner cover body. The inner cover body is arranged in the outer cover body. The outer cover body is rotationally buckled on the outer pot. The inner cover body is buckled on the inner pot. A sealing ring for sealing the inner pot and the inner cover body when the interior of the cooker is in a negative pressure state is arranged between the inner cover body and the inner pot. An air exhaust device for exhausting air in the inner pot is arranged in the cooker body. An internal temperature detection device for detecting the temperature of air in the inner pot is arranged on the inner cover body. An external temperature detection device for detecting the external environment temperature is arranged on the cooker body. When food left in the cooker needs to be kept fresh, the air exhaust device is started, residual air in the cooker is exhausted, the interior of the cooker is in a sealed state through the sealing ring, external air cannot enter the cooker, and therefore the purpose of long-time freshness keeping of the left food is achieved, a user does not need to pour out the left food to keep the left food fresh in another way, and use of the user is greatly facilitated.

Description

technical field [0001] The invention relates to the technical field of electric pressure cooker, and more particularly relates to an electric pressure cooker with air extraction and an air extraction control method. 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 control ...

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

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