KR960024040A - Microwave oven and automatic cooking method using the same - Google Patents

Abstract

The present invention relates to a microwave oven and an automatic cooking method using the same, by using a special container coated with a piezoelectric element to change the distribution of a constant charge arranged in the initial state according to the heating state of the food contained in the special container, This is compared with the set voltage input to the microcomputer to detect the no-load and adjust the cooking condition of the food according to the result there is an effect that can prevent the food from boiling.

Description

Microwave oven and automatic cooking method using the same

Since this is an open matter, no full text was included.

2 is a configuration diagram of a microwave oven according to the present invention, FIG. 3 is a state diagram of a piezoelectric element, FIG. 4 is a detailed circuit diagram of a center signal processor of FIG. 2, and FIG. 5 is an output waveform of a sensor signal processor of FIG. 6 is a flowchart illustrating an automatic cooking method of a microwave oven according to the present invention.

Claims (6)

Compared with the reference voltage set by a dedicated container coated with a piezoelectric element that changes the charge distribution according to the cooking state of the food, a sensor signal processing for detecting a charge distribution change of the dedicated container, and a detection result of the sensor signal processing unit with a set reference voltage. Microwave oven comprising a microcomputer for controlling the heating state. The microwave oven according to claim 1, wherein the piezoelectric element is configured of an active element which senses a physical quantity such as temperature, pressure, or gas and causes a polarity change by the external physical quantity. The microwave oven according to claim 1, wherein the piezoelectric element is configured as a manual operator for supplying power from the outside to forcibly change a polarity therein. The sensor signal processor of claim 1, wherein the non-inverting input terminal is connected to the piezoelectric element, and the inverting input terminal is connected to the ground side via a resistor R2, and the op amp K1. And between a resistor R1 connected to the ground side of the non-inverting input terminal (+), a capacitor C connected in parallel with the resistor R1, and an output terminal of the resistor R2 and the op amp K1. Microwave oven comprising a resistor (R3) connected to. 4. The microwave oven according to claim 3, wherein an external power source supplied to the piezoelectric element constituted by the passive element is applied at a predetermined value that can cause polarization of charge without causing tissue destruction of food. When the automatic cooking is started, the process of detecting the charge distribution change amount from a dedicated container coated with a material whose charge distribution changes according to the cooking state of the food, and comparing the detected charge distribution change amount with a reference voltage set in the microcomputer around this distribution change, ending the cooking by detecting a no-load is greater than the first reference voltage (V ₁₎ for a predetermined time (t1) and, with the charge distribution variation exceeding a certain time stamp is greater than the second reference voltage (V ₂₎ Auto-cooking method of a microwave oven, characterized in that configured to include additional heating as normal arrangement (K). ※ Note: The disclosure is based on the initial application.