Microwave leakage energy detection circuit and safety control method for microwave oven

Abstract

The invention discloses a microwave leakage energy detection circuit, which comprises a charge detection pump circuit, a sampling control circuit and a response circuit, wherein the charge detection pump circuit comprises a microwave resonance antenna, a high-frequency detection rectifier diode D1, a high-frequency detection rectifier diode D2 and an energy storage capacitor C1; the microwave resonance antenna comprises a first coil and a second coil; the first coil and the second coil pass through the high-frequency detection rectifier diode D1 and the high-frequency detection rectifier diode D2 respectively one by one and then store electricity for the energy storage capacitor C1 and the intensity of microwave leakage energy is detected through a voltage value of the energy storage capacitor; a threshold is set in the circuit, and after the voltage value of the energy storage capacitor exceeds the set threshold, an alarm is triggered to play reminding and protecting roles on people near the microwave energy; electric elements such as the high-frequency detection rectifier diodes and switch triodes are mainly adopted by the circuit part, so that the circuit is simple and the cost is low; and the intensity of the microwave leakage energy is represented by using the light-emitting intensity of light-emitting diodes, so that a user can intuitively find out the dangerous situation.

Description

technical field [0001] The invention relates to the technical field of microwave oven safety, in particular to a microwave energy leakage detection circuit and a microwave oven safety control method. Background technique [0002] With the development of science and technology, household microwave ovens have already entered thousands of households, and industrial microwave energy application equipment has also entered various fields of industry by leaps and bounds. Such as microwave drying, microwave sterilization, microwave puffing, microwave dehydration, microwave roasting in the food industry; microwave rubber vulcanization in the rubber tire industry; microwave heating and dilution of heavy oil in the oil industry; Metal; microwave energy heating and sintering in powder metallurgy industry; microwave energy heating and decomposition sewage treatment in sewage treatment industry; microwave energy tumor treatment instrument in medical industry, etc. As a clean, efficient, ...

AI Technical Summary

Problems solved by technology

But at present, whether it is a household microwave oven or an industrial microwave oven, there is no microwave energy leakage detection device or circuit, and it is impossible to detect whether the microwave energy leakage index exceeds the standard in real time. The household microwave oven or industrial microwave energy application equipment generally passes strict inspections before leaving the factory. However, due to long-term use or improper use and installation, the microwave leakage energy index has seriously exceeded the standard during use, and the majority of operating personnel do not know

Even if the operator wants to know whether the microwave energy leakage index of the microwave oven or industrial microwave application equipment in use exceeds the standard, there is no simple detection equipment and accurate detection means to measure

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