| 摘要 |
PROBLEM TO BE SOLVED: To provide a full-enclosed motor capable of well-balanced cooling of a stator by creating smooth flow of cooling air through an air duct.SOLUTION: The full-enclosed motor has a stator, a rotor, a case and a cooling fan. The case includes an air duct which has an annular shape as viewed from an axial direction, which is formed in a part at the outer side of the stator in the axial direction. The cooling fan blows cooling air so that the cooling air flows being distributed in a circumferential direction of the stator in the air duct. In the case, plural projections are disposed including at least one of a function part and a dummy part in the air duct so as to receive the cooling air flowing in the air duct. Viewing from the axial direction, plural projections in the air duct are disposed on the stator shaft in a rotational symmetry. |
