PERMANENT-MAGNET ELECTRIC MOTOR COMPRISING A SEGMENTED STATOR

摘要

A permanent-magnet electric motor (1) comprises a rotor (4) to which permanent magnets (6) and a stator (2) are fixed. The stator comprises a stator structure and windings (5) arranged on the stator structure. The stator structure is formed by a set of at least three independent stator elements (21) assembled on a base (3) with no direct mechanical connection between them. Each stator element (21) is fixed to the base (3) of the motor by an adjusted fastening element (31) and at least one antirotation element (32). Preferably the stator elements (21) are made of an electrically insulating material that is a good heat conductor, such as a ceramic.