ROTATING ELECTRICAL MACHINE

摘要

A cooling fan is provided at an axial end portion of a rotor. The cooling fan generates a cooling air when rotated integrally with the rotor. On a stator core arranged at a position on a radially outer side of the rotor, a plurality of stator coils are arrayed in a circumferential direction of the stator core. Each stator coil includes a coil end that protrudes from an axial end surface of the stator core. A front housing covering the cooling fan includes: an exhaust port for passing the cooling air therethrough, at least part of the exhaust port being located at a position on a radially outer side of the coil end; and a recess portion opposed to the coil end in an axial direction.

主权项

1. A rotating electrical machine, comprising:
a rotor to be rotated about its axis; a stator comprising:
an annular stator core arranged on a radially outer side of the rotor; anda plurality of stator coils provided onto the annular stator core and arrayed in a circumferential direction of the annular stator core; a housing for supporting the rotor and the stator; and a cooling fan provided at an axial end portion of the rotor and covered by the housing, for generating a cooling air when rotated integrally with the rotor, wherein each of the plurality of stator coils comprises a coil end that protrudes from an axial end surface of the annular stator core, and wherein the housing comprises:
an exhaust port for passing the cooling air therethrough, at least part of the exhaust port being located at a position on a radially outer side of the coil end; anda recess portion opposed to the coil end in an axial direction.