Waterproof fan

A waterproof fan comprising:

• a rotor including a rotating blade capable of rotating about a rotation axis;
• a stator including
• a plurality of stator cores extending in a radial direction relative to the rotation axis, and
• a winding wound around each of the stator cores;
• a frame including a housing space opening toward one side of the rotation axis;
• a circuit board electrically connected to the winding and housed in the housing space;
• a waterproofing resin portion covering the stator and the circuit board to block the opening of the housing space;
• and
• a positioning member provided in the housing space and configured to position the circuit board at a position away from an inner wall of the housing space, wherein
• the rotor includes a rotating shaft portion supported by a bearing,
• the frame includes:
• an inner cylinder portion supporting the bearing;
• an outer cylinder portion having a larger diameter than the inner cylinder portion, and
• a bottom portion connecting the inner and outer cylinder portions on another side of the rotation axis and forming a bottom surface of the housing space,
• the outer cylinder portion extends from an end in the radial direction of the bottom portion toward the one side of the rotation axis, and
• the housing space is formed by an outer peripheral surface of the inner cylinder portion, a surface of the bottom portion on the one side of the rotation axis, and an inner peripheral surface of the outer cylinder portion.