Permanent magnet motor and stator punching plate thereof

The invention discloses a stator punching plate of a permanent magnet motor. The stator punching plate comprises a stator punching plate tooth part and a stator punching plate yoke part, wherein tooth sockets are arranged in the outer edge of the annular stator punching plate tooth part; notches of the tooth sockets are back to the axis of the stator punching plate tooth part; the inner edge of the stator punching plate tooth part is a continuous circular surface; and the stator punching plate yoke part can sleeve the outer edge of the stator punching plate tooth part to form the overall stator punching plate. The tooth sockets of the stator punching plate are arranged in the outer edge and are shielded through the stator punching plate yoke part; the inner edge of the stator punching plate tooth part is the continuous circular surface, i.e., no gap exists; the problem of a sudden change of a magnetic field is solved; and the problem of leakage flux is solved, so that the eddy-current loss of a conductive she