Impeller, centrifugal fan, and air-conditioning apparatus

An impeller comprising:

• a main plate configured to be driven to rotate;
• an annular side plate provided opposite to the main plate and having a suction port for air;
• and
• a plurality of blades connected to the main plate and the side plate and arranged in a circumferential direction around a rotation axis of the main plate,
• wherein each of the plurality of blades has
• an inner peripheral end located adjacent to the rotation axis in a radial direction from the rotation axis,
• an outer peripheral end located closer to an outer circumferential side of the impeller than the inner peripheral end in the radial direction,
• a sirocco blade portion that includes the outer peripheral end, has an outlet angle of greater than 90 degrees, and forms a forward-swept blade, and
• a turbo blade portion that includes the inner peripheral end and forms a swept-back blade,
• wherein each of the plurality of blades has an end portion that faces the suction port and a base portion that is connected to the main plate, and the end portion has a smaller thickness than a thickness of the base portion in the sirocco blade portion, and
• wherein the end portion of each of the plurality of blades has a blade shape, and in the end portion having the blade shape, a first blade thickness of an inner circumferential side of the impeller is greater than a second blade thickness of the outer circumferential side.