| 摘要 |
A fixing method for fixing a coil insulator which is provided between a stator core (5) including a back yoke (7) and a plurality of teeth (8) projecting in the radial direction from the back yoke (7), and a coil (6) wound around the stator core (5), to the stator core (5), includes preparing the stator core (5) in which a fixing hole (11) is formed corresponding to a respective one of the teeth (8), on an end face in the axial direction of the back yoke (7), and preparing a plurality of coil insulators (12) which include each a main body (14) composed of a heat-softenable insulating material and arranged on the circumference of a respective, one of the teeth (8), and a fixing portion (20) which is projected in the radial direction from the main body (14) and covers the fixing hole (11). Each coil insulator (12) is arranged on the circumference of a respective one of the teeth (8) by fitting thereto. By softening the fixing portion (20) by heating to bring part of the insulating material into the fixing hole (11) and then hardening the fixing portion (20), a projection (22) for fixing the coil insulator (12) to the stator core (5) is formed. |
