A brushless motor coil across multiple teeth, pitch is greater than 1 the brushless motor stator winding and three-phase ac induction motor stator winding wiring method, called the winding coarse winding. Coarse pitch winding of the motor stator, general coarse pitch winding used in larger brushless motor power, but coarse pitch winding pitch, the coil end is longer, the motor loss is bigger, slot number more coarse pitch winding form change, may be sine group form, is not conducive to run less harmonic slows down, so that the motor running smoothly.