Energy-saving permanent magnet synchronous motor

The utility model relates to the technical field of permanent magnet synchronous motors, and discloses an energy-saving permanent magnet synchronous motor which comprises a mounting plate, a permanent magnet synchronous motor body is arranged on the upper side of the mounting plate, an output shaft is fixedly connected to the output end of the permanent magnet synchronous motor body, and two mounting frames are fixed to the bottom of the permanent magnet synchronous motor body. A rubber pad is adhered to the bottom of the mounting frame, water flow impacts one side of a blade, so that the blade drives a rotating shaft to rotate, at the moment, the rotating shaft drives a brush plate to rotate, the brush plate brushes impurities blocked at the top of the filter screen, the brush plate can brush the impurities blocked at the top of the filter screen, and the filter screen is prevented from being blocked by the impurities; the cleaning function reduces the frequency and cost of manual maintenance, the stability