A ROTOR FOR A PERMANENT MAGNET SYNCHRONOUS MOTOR

摘要

The present invention relates to a rotor (1) for a motor, comprising a core (2), magnets (4) on the surface of the core (2), one or more magnet holders (5) of plastic material, mounted to the front and/or rear surface of the core (2) with a base (7), support arms (9) extending between the magnets (4), and support projections (10) between the support arms (9), extending in the radial direction and bearing against the front or rear surface of the magnets (4), and an insulating layer (6) of plastic material for coating the outer surfaces of the magnets (4) and the magnet holders (5), wherein positioning pins (11) are arranged circularly on the base (7) at equal intervals, extending vertically from the rear surface of the base (7) and in the opposite direction to the support arms (9) for indicating the positions of the magnets (4).