Winding structure of stator, stator and motor

The utility model relates to a winding structure of a stator, a stator and a motor, the winding structure is used for the stator, the stator comprises a stator iron core, the stator iron core is provided with 48 stator grooves at equal intervals along the circumferential direction, the number of pole pairs of the stator is 4 pairs of poles, the number of phases of the stator is three, the winding structure is partially wound in the stator grooves, and each phase comprises two parallel branches. Each branch comprises two continuous coil groups, each coil group comprises a first concentric winding and a second concentric winding which are continuous, and each coil group enters from the innermost side of the first concentric winding and exits from the innermost side of the second concentric winding. According to the winding structure of the stator, each branch circuit of each phase adopts an'inner-in inner-out 'concentric winding mode, and for a three-phase motor of which the slot number of the stator is 48, the