Continuous pressure detection device for electric pressure cooker

Abstract

The invention relates to the field of electric pressure cookers, and discloses a continuous pressure detection device for an electric pressure cooker, which comprises a circuit control part and a mechanical execution part. The circuit control part comprises a central control unit, wherein the central control unit is connected with a sine wave generation circuit; the sine wave generation circuit, a power amplification circuit, a bridge and difference inductance circuit, a difference amplification circuit, a precision rectification and filter circuit, a direct current amplification circuit and an A / D converter are connected in sequence; after a signal processed through the direct current amplification circuit enters the A / D converter, an input voltage value is generated and enters the central control unit; and the central control unit can convert the input voltage value into an output pressure value. The mechanical execution part comprises a magnetic core connected with the bottom of an outer pot of the electric pressure cooker; and the magnetic core is connected into the bridge and difference inductance circuit. The device realizes continuous measurement on the pressure values of the electric pressure cooker in low cost so as to fulfill different taste requirements of consumers on cooked foods and maximize nutrition of cooked foods.

Description

technical field [0001] The invention relates to the field of electric pressure cookers, in particular to a device for continuously detecting the pressure inside the electric pressure cooker. Background technique [0002] At present, the pressure value of domestic electric pressure cookers is mainly controlled by temperature, and the approximate pressure control is performed through the food cooking type selection function on the control panel; according to the control accuracy, it is divided into single upper limit pressure control, segmented multiple upper limit pressure control and continuous pressure There are several pressure control modes such as pressure control, among which the precision of continuous pressure control is the highest, which is most in line with the original design intention of variable pressure cooking. [0003] Continuous pressure control requires a continuous pressure measurement device. At present, the principle of using a load cell (resistance stra...

AI Technical Summary

Problems solved by technology

[0011] The present invention provides an economical and practical electric pressure cooker with good shock resistance and high temperature drift aiming at the shortcomings of the existing technology, such as high cost, poor anti-vibration, large temperature drift, inconvenient installation and debugging, and large time drift. The pressure continuous detection device of the electric pressure cooker that can offset, is convenient for installation and debugging, and takes less time for rinsing

Images