PERMANENT MAGNET DIRECT DRIVE WIND POWER GENERATOR SYSTEM AND STATOR THEREOF

摘要

Disclosed are a permanent magnet direct drive wind power generator a system and a stator thereof wherein the stator comprises a stator bracket (1) a stator iron core (8) arranged on the peripheral wall of the stator bracket and a paddle side tooth pressing plate (6). The paddle side tooth pressing plate is arranged on a paddle side axial end face of the stator iron core. At least one first air hole (2) is formed in the peripheral wall of the stator bracket. At least one second air hole (5) is formed in the paddle side tooth pressing plate. The stator further comprises at least one air flow passage (9) used for linking the first air holes with the second air holes. The air flow passage penetrates through the interior of the stator iron core. The electric motor can self adaptively dry itself the service life of permanent magnet poles is prolonged an insulation level reduction of components inside the electric motor is prevented the risk that the electric motor is corroded by severe air flow is lowered and insulation reliability is improved.