Permanent Magnet Motors

Permanent Magnet Motors eliminate all wiring to the field coils. The magnetic field is generated by the permanent magnet without the need for winding and pole shoes. The magnets use flux-concentrating pieces to direct the magnetic field.

Fig 1: Identifying Permanent Magnet Motors

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 2: Identifying Permanent Magnets With Flux Concentrating Pieces

Courtesy of BMW OF NORTH AMERICA, INC.

Arrangement of permanent magnets (M) with flux concentrating pieces (F).