Motor stator

The present invention relates to the field of motors, and discloses a motor stator. The motor stator comprises a stator core and a stator coil which is formed by winding a plurality of conductors withquadrangular radial sections. The stator core is a hollow cylinder. An inner surface of the stator core is provided with a plurality of grooves which are penetrated along the axial direction of the stator core. The plurality of grooves are uniformly distributed along the circumferential direction of the stator core. A distance between two opposite side walls of each groove is gradually increasedfrom inside to outside along the radial direction of the stator core. A plurality of winding units successively disposed from inside to outside along the radial direction of the stator core and formedby a plurality of conductors are accommodated in each groove. The sizes of the radial sections of the plurality of conductors of each winding unit are identical. Along the radial direction of the stator core from inside to out