Electric pressure cooker capable of conducting low-pressure cooking

Abstract

The invention provides an electric pressure cooker capable of conducting low-pressure cooking. The electric pressure cooker comprises a cooker body, a cooker cover, an inner container, a control device, a pressure switch and a heating device. The control device comprises a timer and a control unit. The control unit is electrically connected with the heating device and the pressure switch. The pressure switch has the switch-on pressure and the switch-off pressure, wherein the pressure switch is switched on at the switch-on pressure and is switched off at the switch-off pressure. The target pressure inside the inner container is smaller than the switch-on pressure. When the pressure inside the inner container reaches the switch-off pressure, the control unit receives a switch-off signal of the pressure switch and controls the heating device to stop heating. When the pressure inside the inner container is decreased to the switch-on pressure, the control unit receives a switch-on signal of the pressure switch and controls the timer to start timing. After the timer conducts timing for a time T1, the control unit controls the heating device to start heating again, wherein T1 is larger than 0. The electric pressure cooker can provide abundant low pressure selections.

Description

technical field [0001] The invention relates to an electric pressure cooker, in particular to an electric pressure cooker capable of low-pressure cooking. Background technique [0002] At present, the electric pressure cooker controls the pressure in the electric pressure cooker through the pressure switch. Generally speaking, in order to realize low-pressure cooking in the pot, such as cooking rice, the target pressure for general food low-pressure cooking is set between the closing pressure and the opening pressure of the pressure switch. When the pressure switch is closed, the heating device starts heating, and when the pressure switch is disconnected, the heating device stops heating. [0003] In the process of using the above-mentioned electric pressure cooker, the inventor found that the target pressure of the existing electric pressure cooker for low-pressure cooking is generally maintained between the closing pressure and the disconnecting pressure of the pressure sw...

AI Technical Summary

Problems solved by technology

[0003] In the process of using the above-mentioned electric pressure cooker, the inventor found that the target pressure of the existing electric pressure cooker for low-pressure cooking is generally maintained between the closing pressure and the disconnecting pressure of the pressure switch, so that the optional low pressure range of the electric pressure cooker is limited, and the cooking Different foods generally require different cooking pressures. There are many types of foods, but the pressures to choose from are limited, especially the range of low pressures to choose from is limited, resulting in poor taste of cooked food

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