Stator unit, motor, and blower apparatus

A stator assembly comprising:

• a stator capable of driving a rotor that is rotatable about a central axis extending in a vertical direction;
• a stator support that supports the stator;
• and
• a filling portion that covers a surface of the stator with a filling material;
• wherein
• the stator support has a tubular shape extending in an axial direction;
• a first radial end portion of the stator is fixed to a second radial side surface of the stator support;
• the stator includes a stator core and an insulator covering at least a portion of the stator core;
• the insulator includes an upper insulator covering an axial upper end surface of the stator core;
• a first radial end portion of the upper insulator contacts the second radial side surface of the stator support;
• an insulator concave portion, which is recessed toward an axial upper side in an axial lower end surface and is annular about the central axis, is provided in the first radial end portion of the upper insulator;
• and
• a first space, surrounded by an inner surface of the insulator concave portion, the axial upper end surface of the stator core, and the second radial side surface of the stator support, is filled with the filling material.