Toroidal coil motor

A toroidal coil motor comprising:

• a housing;
• a shaft fixedly mounted at one end on said housing;
• a rotation sleeve loosely fitted on said shaft;
• a magnet fixedly mounted on said rotation sleeve through a magnet yoke, said magnet having a plurality of magnetic poles;
• a stator core fixedly mounted on said housing by a plurality of laminate-fixing ties of a non-magnetic material, said stator core being composed of a toroidal core having a central axis and comprising an annular iron core and a plurality of toroidal coils wound about said annular iron core, said toroidal core having a plurality of holes axially disposed therethrough, said plurality of holes being angularly and symmetrically disposed in a direction of a circumference of said toroidal core;
• a motor rotation control board;
• at least one member inserted into one of said holes for mounting and maintaining said motor rotation control board at a predetermined position with respect to said toroidal core;
• and
• a magnetic pole position detection element on said motor rotation control board for detecting the rotational position of said plurality of magnetic poles of said magnet;
• wherein the sum of said holes corresponds to a whole, even, common multiple of the number of said magnetic poles and the number of said toroidal coils;
• and
• wherein said plurality of laminate-fixing ties extends through a fraction of said plurality of holes for fixing said toroidal core to said housing.