| 摘要 |
Rotor is made up of cylindrical plates enclosed by plastic flanges so as to form a solid cylinder on which are mounted rows of permanent magnets, The synchronous motor has a permanent magnet rotor (30). The rotor (30) is made up of a cylindrical shaped support (32) formed by an assembly of plates (34) along the rotor axis, with two circular end flanges enclosing the plates (34). The rotor contains several rows (16) of one or more permanent magnets (18) fixed on the cylindrical surface of the support (32). The flanges and the fixed permanent magnets are encapsulated by a band. The flanges (Pd, Pg) are made from a plastic material and have a diameter sensibly identical to the that of the rotor support (32) including the permanent magnets (16). The equalise the rotational mass of the rotor, the rotor has two metallic copper/aluminium balancing rings (Ad, Ag) whose largest diameter is less than the diameter of the plastic flanges (Pd, Pg). Each of the rings is fixed onto each flange coaxial to the rotor axis (30), on either sided of the rotor. |
