Sterilization and disinfection mechanism of high-flow fresh air system and preparation method of sterilization and disinfection mechanism

The invention discloses a sterilization and disinfection mechanism of a large-flow fresh air system. The sterilization and disinfection mechanism comprises a microwave cavity, and an oxide plate and an ultraviolet lamp assembly are arranged in the microwave cavity; the device is characterized in that the microwave cavity comprises a microwave cavity U-shaped seat, a microwave cavity cover plate, a microwave cavity front plate and a microwave cavity rear plate; a microwave transmitting device is arranged on one side of the microwave cavity U-shaped seat; the microwave cavity front plate and the microwave cavity rear plate are made of honeycomb-shaped metal plates; the ultraviolet lamp assembly comprises a first ultraviolet lamp group and a second ultraviolet lamp group; an oxide plate is arranged between the first ultraviolet lamp group and the second ultraviolet lamp group; the wave cavity front plate, the microwave cavity rear plate, the first ultraviolet lamp group, the second ultraviolet lamp group and the