Motor cover subassembly and dust catcher

The utility model provides a motor cover subassembly for the motor, wherein, motor cover subassembly includes: the motor cover, the motor covers and is provided with the locating piece, and the locating piece is provided with the recess, the sealing washer, the sealing washer setting is covered at the motor, is provided with the connecting hole on the sealing washer, connecting hole and locating piece looks adaptation, motor shroud, motor shroud set up on the sealing washer, and the motor shroud is provided with the bulge with the cooperation side of sealing washer, and the bulge card is established in the recess of locating piece. The utility model discloses a cover the sealing washer setting at the motor for the locating piece passes the connecting hole, and then has restricted the circumference and the axial degree of freedom of motor cover and sealing washer, has realized preventing staying and splining of the two, and is further, sets up the motor shroud on the sealing washer, makes the bulge card establ