Stator for motor, motor and compressor

A stator for a motor, comprising:

• a stator body comprising:
• an elongated wall extending along an axis, wherein the elongated wall has an inner surface and an outer surface to define a substantially annular shape of the stator body, and
• a plurality of stator teeth formed on the inner surface of the elongated wall,
• wherein the plurality of stator teeth are circumferentially spaced from one another, such that an accommodating groove is defined circumferentially between every two adjacent stator teeth;
• wherein each stator teeth has an inner end surface and the inner end surfaces of the plurality of stator teeth collectively define a first imaginary circle in a plane substantially perpendicular to the axis, wherein the first imaginary circle has a first diameter D1;
• wherein the outer surface of the elongated wall defines a second imaginary circle in the plane, wherein the second imaginary circle has a second diameter D2;
• and
• wherein the accommodating grooves formed by the plurality of stator teeth collectively define a projected area S on the plane, and the projected area S satisfies S >(0.215*(D22−D12)*3.14)/4 mm2.