Stator, motor, compressor, and air conditioner

A stator comprising a stator core and a winding wound around the stator core in wave winding,

• wherein the winding has an assembly of a plurality of covered wires, and an outer cover film that surrounds and covers the assembly and contains thermosetting resin,
• wherein the plurality of covered wires are eight covered wires located at eight positions arranged in three columns and three rows except for a center located at a second column and second row,
• wherein each of the plurality of covered wires has a conductor and an insulating film surrounding and covering the conductor, and
• wherein each of the plurality of covered wires has a wire width of 1.5 mm or less.