Crossflow fan

A crossflow fan comprising:

• an impeller comprising,
• a plurality of support members arranged at predetermined interval in a direction of a rotation axis, the support members being formed in the shape of a circular or ring-shaped flat plate, and
• a plurality of blades provided between adjacent support members, located close to outer circumferences of the adjacent support members, and spaced apart in a circumferential direction;
• a motor provided on one end of the rotation axis of the impeller;
• a stabilizer spaced from an outer circumference of the impeller, the stabilizer being located along a direction of the rotation axis;
• and
• a convex portion protruding toward the impeller on a surface of the stabilizer facing the impeller, the convex portion located along the direction of the rotation axis,
• in a rotation direction of the impeller, an end of the convex portion on a motor side in the direction of the rotation axis being located downstream of a center of the convex portion in the direction of the rotation axis,
• a surface of the convex portion facing the impeller is being formed such that a distance between the surface and the impeller gradually decreases as the surface extends from an upstream side to a downstream side in the rotation direction of the impeller.