Disinfection and sterilization device applying optical sterilization

The invention discloses a disinfection and sterilization device applying optical sterilization, and relates to the technical field of fan installation, the disinfection and sterilization device comprises an overturning piece, a swinging piece, an irradiation cavity and a brightness changing assembly, the two sides of the swinging piece are rotatably installed on one side of the overturning piece, the irradiation cavity is fixed to one side of the swinging piece, the interior of the irradiation cavity is of a hollow structure, and the brightness changing assembly is arranged in the irradiation cavity. The brightness changing assembly is fixedly installed in the irradiation cavity. According to the scheme, the polarities of the first magnetic part and the second magnetic part are arranged to be opposite, in the electrifying process of the second magnetic part, the second magnetic part generates corresponding opposite force, and then the magnetic suction source is driven to move in the same movement direction al