A microwave energy leakage detection circuit and a microwave oven safety control method

Abstract

A microwave leakage energy detection circuit, comprising a charge detection pump circuit, a sampling adjustment circuit and a response circuit, the charge detection pump circuit comprising a microwave resonant antenna, a high frequency detection rectifier diode D1, a high frequency detection rectifier diode D2 and an energy storage capacitor C1 , the microwave resonant antenna includes a first coil and a second coil, and the first coil and the second coil respectively pass through the high-frequency detection rectifier diode D1 and the high-frequency detection rectifier diode D2 to store electricity for the energy storage capacitor C1, and pass through the energy storage capacitor The voltage value detects the strength of the microwave leakage energy; and a threshold is set in the circuit. When the voltage value of the energy storage capacitor exceeds the set threshold, an alarm is triggered to remind and protect people near the microwave energy; the circuit part is mainly Using electric components such as high-frequency detection and shaping diodes and switching transistors, the circuit is simple and the cost is low; the strength of microwave leakage energy is expressed by the intensity of light-emitting diodes, and users can intuitively find dangerous situations.

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, ...

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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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