STRUCTURE FOR LINEAR AND ROTARY ELECTRIC MACHINES

摘要

The invention relates to an electric machine, comprising: a stator (2, 2b, 4) having stator teeth (2a, 4a); and at least two movers moving with respect to the stator, the two movers being spaced apart from each other at intervals corresponding to an electrical phase difference of 60°, wherein each of the movers has mover teeth (1a) in multiples of three, with phase coils (1d) formed by coils respectively wound around the mover teeth (1a), the coils are wound around the corresponding mover teeth (1a) such that an electric phase difference between the phase coils (1d) of the adjacent mover teeth (1a) is 120°, and at least one protrusion (1c, 4c) is provided on ends of the stator teeth (2a, 4a) or ends of the mover teeth (1a) and at least one permanent magnet (1b, 4b) is provided on each of left and right sides of the protrusion (1c, 4c), or permanent magnets (1b, 4b) are provided on ends of the stator teeth (2a, 4a) or ends of the mover teeth (1a) such that opposite poles thereof alternate with each other (see fig. 1d).