Stator and motor including same

A stator comprising:

• a stator core in which a plurality of slots are formed;
• and
• a plurality of windings between an inner periphery and an outer periphery of the stator core,
• wherein a first winding corresponding to a first phase among the plurality of windings is disposed throughout a plurality of layers between the outer periphery and the inner periphery of the stator core,
• wherein the first winding further includes:
• a first hairpin disposed in a first area between the outer periphery and the inner periphery of the stator core, and
• a second hairpin disposed in a second area closer to the inner periphery than the first area, and having a larger length than the first hairpin, and
• wherein a number of second hairpins is less than a number of first hairpins.

A motor comprising:

• a stator;
• and
• a rotor disposed in a hollow in the stator and rotated
• wherein the stator comprises:
• a stator core in which a plurality of slots are formed;
• and
• a plurality of windings between an inner periphery and an outer periphery of the stator core,
• wherein a first winding corresponding to a first phase among the plurality of windings is disposed throughout a plurality of layers between the outer periphery and the inner periphery of the stator core,
• wherein a thickness of a second layer adjacent to the inner periphery is less than a thickness of a first layer adjacent to the outer periphery among the plurality of layers, and
• wherein the first winding is connected in series in a first area between the outer periphery and the inner periphery of the stator core, and the first winding is connected in parallel in a second area closer to the inner periphery than the first area between the outer periphery and the inner periphery, and
• wherein the first winding includes:
• a first hairpin disposed in the first area, and
• a second hairpin disposed in the second area and having a larger length than the first hairpin.