Rotor and manufacturing method thereof

Abstract

The invention provides a rotor and a manufacturing method thereof, wherein the number of parts is reduced, the performance is improved, and the rotor can be easily manufactured. The rotor core (32) has: a cylindrical core body (32a), the inner peripheral portion of which is fixed to the rotating shaft (31); and a total of four salient poles (32b) which are provided on the outer peripheral portion of the core body (32a), protrude outward in the radial direction of the core body (32a), and are arranged at equal intervals (90-degree intervals) in the circumferential direction of the core body (32a), the magnet (33) comprising: a first end portion (33a) which abuts against one of the salient poles (32b) which are adjacent in the circumferential direction of the core body (32a), and a second end portion (33b) which abuts against the other of the salient poles (32b) which are adjacent in the circumferential direction of the core body (32a); and a second end portion (33b) facing the other salient pole (32b) of the salient poles (32b) adjacent in the circumferential direction of the core body (32a) via the first gap (G1), in the axial direction of the rotating shaft (31), the length dimension of the rotor core (32) is longer than the length dimension of the magnet (33), and one side of the rotor core (32) in the axial direction is exposed from one side of the magnet (33) in the axial direction.

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