The utility model relates to
refrigeration fan technical field discloses a
refrigeration fan dust cover, including the casing, both sides of casing all are fixedly installed photocatalytic filter screen, the top of casing is fixedly installed with speed
reducer motor, the output of speed
reducer motor is fixedly installed with reciprocating screw rod, the surface
screw thread connection of reciprocating screw rod has mobile
brush holder, the surface of mobile
brush holder is in contact with the surface of photocatalytic filter screen, the surface fixed connection of mobile
brush holder has reverse jet board, and reverse jet board is located inside the casing. In the utility model, through the mutual cooperation of casing, photocatalytic filter screen, speed
reducer motor, reciprocating screw rod, mobile brush holder, reverse jet board, fan and flexible
pipe one structure, drive mobile brush holder and reverse jet board to move back and forth, carry out cleaning work to the dust adhered on the surface of photocatalytic filter screen, realize the effect that photocatalytic filter screen can be cleaned quickly.