Stator structure, motor, and electrical equipment

A stator structure comprising:

• a stator core, wherein the stator core comprises a stator yoke and a plurality of stator teeth, the plurality of stator teeth are arranged on the stator yoke, a stator slot is formed between each two adjacent stator teeth, each stator tooth comprises a tooth body and a tooth boot, the tooth body is arranged on the stator yoke, and the tooth boot is arranged on the tooth body;
• and
• a winding arranged on the plurality of stator teeth, wherein the winding comprises flat wires wound on the plurality of stator teeth in a concentrated manner, the flat wires are wound on the plurality of stator teeth in multiple layers, and the number of flat wires in the layer of the winding away from the plurality of stator teeth is not more than the number of flat wires in the layer of the winding close to the plurality of stator teeth, wherein:
• the width of the side of the tooth body close to the tooth boot is 2×t1, the width of the side of the tooth body close to the stator yoke is 2×t2, and 1.5×t1≥t2≥t1;
• the stator yoke faces one side of the stator teeth, and a portion between the adjacent stator teeth is a bottom wall of the stator slot, a side of the stator teeth facing the stator slot is a side wall of the stator slot;
• a length of the cross section of the flat wire is x, a width thereof is y, the linear distance between the ends of two side walls facing the bottom wall is n, a linear distance between the ends of the two side walls away from the bottom wall is m, and along the radial direction of the stator core, a distance between the two ends of the side wall is h, wherein 0.25×h÷m<x÷y<6×h÷n;
• and
• the bottom wall is a curved surface, and an angle between the side wall and the tangent to the bottom wall passing through any intersection of the bottom wall and the side wall is β≥π÷2−π÷Z1, wherein Z1 is the number of the stator teeth.