The invention discloses a driver box body structure. The driver box body structure comprises a driver upper box body, a driver lower box body, a motor front end cover and a motor
brush rack plate, wherein the motor front end cover is arranged on the driver lower box body, the motor
brush rack is arranged on the motor front end cover, a screw hole is formed in a side surface, a
brush handle is arranged on the motor brush rack plate, a through hole is formed in the center, openings are formed in a front end and a rear end of the brush
handle and communicate with each other, a limitation step isarranged in the through hole, a boss is arranged on the limitation step, and the driver lower box body, the motor front end cover, the motor brush rack plate and the brush
handle are integratedly formed. By the driver box body structure, the matching accuracy of the driver box body and the product consistency are improved, the
assembly process is reduced, and the cost is reduced; the openings areformed in the two ends of the brush handle, a rotor is pressed during
assembly, a carbon brush is arranged, and the carbon brush is prevented from being damaged; a rotor bearing is reinforced by the formed screw hold matched with a screw, and the bearing is prevented from axially moving; and the automatic locking function of a driver is improved by a damping piece, and the problems that a large-range driver having the automatic locking function is high in cost and is easy to damage are solved.