Microwave electrodeless discharging ultra violet ray disinfectant microwave oven

Abstract

The present invention relates to a microwave oven capable of utilizing microwave excitation to produce UV ray to make disinfection. It is characterized by that in the microwave oven a microwave non-polar discharge ultraviolet ray lamp tube which can be excited by microwave and can radiate ultraviolet ray is mounted, and a power attenuator is set for regulating and controlling microwave powder.

Description

technical field [0001] The invention relates to an ultraviolet sterilizing microwave oven, in particular to a microwave oven which utilizes microwave excitation to generate ultraviolet rays for disinfection in the microwave oven, which belongs to A47J or F24C in the international patent classification. technical background [0002] Household microwave ovens are mainly used for food cooking, and also have certain disinfection and sterilization functions, but their disinfection and sterilization functions have the following deficiencies: ① Microwave disinfection has a strong thermal effect, which will generate higher temperatures, and is not suitable for heat-sensitive Disinfection of items; ②When microwaves act on items, the moisture contained in the items will be used to increase the temperature and a large amount of water will be volatilized, so it is not suitable for disinfection of items with low water content; ③When microwaves act, the electromagnetic field in the microwa...

AI Technical Summary

Problems solved by technology

[0002] Household microwave ovens are mainly used for food cooking, and also have certain disinfection and sterilization functions, but their disinfection and sterilization functions have the following deficiencies: ① Microwave disinfection has a strong thermal effect, which will generate higher temperatures, and is not suitable for heat-sensitive Disinfection of items; ②When microwaves act on items, the moisture contained in the items will be used to increase the temperature and a large amount of water will be volatilized, so it is not suitable for disinfection of items with low water content; ③When microwaves act, the electromagnetic field in the microwave oven cavity The strength is very high, and metal objects will cause ignition and discharge, so it is not suitable for the disinfection of metal objects; ④The scope of microwave disinfection and sterilization is limited, and the effect of ultraviolet disinfection and sterilization is not as good

This method has several main disadvantages: ①Ultraviolet lamps are powered by electronic ballasts, which cannot withstand the high temperature of microwave ovens for a long time, and the filaments are easy to age and have a short life; Ultraviolet power, low efficiency; ③If the device is damaged or used improperly, the ultraviolet rays outside the furnace are likely to cause damage to the human body; ④The structure is complicated, which is not conducive to market promotion

[0005] The search found that an invention patent application named "microwave oven with built-in ultraviolet sterilizing device" with application number 02153115.3 and a utility model patent named "microwave oven with disinfection function" with application number 02225094.8 both sterilized microwave ovens with built-in ultraviolet rays. There are different levels of explanations for sterilization, and its disadvantages are: ①Ultraviolet lamps are still powered by electronic ballasts, which cannot withstand the high temperature of microwave ovens for a long time, because in the furnace, the filaments are more likely to age and have a shorter life; ②Its disinfection and sterilization device needs to be connected with another wire and another power supply, and the structure is still complicated; if no other power supply is used, it can be sterilized and sterilized directly while starting the microwave oven for microwave heating, because the temperature exceeds 60°C, and its ultraviolet rays The function of disinfection and sterilization will be greatly reduced; ④The surface of the ultraviolet lamp tube is not easy to clean. When there is dust on the surface of the lamp tube or the surface of the lamp tube is polluted, the ultraviolet radiation will be reduced, affecting the sterilization effect

Images