| 摘要 |
A rotor of an electric motor is provided in which a permanent magnet holding member can be assuredly fixed to a rotor main body and the rotor main body can be easily worked and inexpensively manufactured. In a rotor, a plurality of permanent magnets 21 are held in a permanent magnet holding member 29 made of a synthetic resin and fixed to an outer peripheral part of a cylindrical rotor main body 28. An outer peripheral surface of the rotor main body 28 is a cylindrical surface. Rotation prevention recessed parts 30 are formed at a plurality of parts in the circumferential direction of the outer peripheral part in both end parts of the rotor main body 28. The permanent magnet holding member 29 includes annular parts 31 which come into close contact with the outer peripheral parts of both end faces of the rotor main body 28 and connecting parts 32 which connect both the annular parts 31 on the outer peripheral surface of the rotor main body 28 and hold the permanent magnets 21. A plurality of rotation prevention protruding parts 33 fitted to the rotation prevention recessed parts 30 of the rotor main body 28 are formed integrally with the permanent magnet holding member 29. |
