Permanent magnet a.c. signal generator

Details Permanent magnet a.c. signal generator Permanent magnet a.c. signal generator

H - Electricity

02

K

310/77

H02K 3/50 (2006.01) G01P 3/46 (2006.01) G01P 3/487 (2006.01) H02K 3/52 (2006.01) H02K 5/22 (2006.01) H02K 21/22 (2006.01)

Patent

CA 1067129

Abstract of the Disclosure A sub-fractional A C. signal generator incorporating a stator assembly comprising a coil wound upon an annular bobbin of molded insulator material, a pair of annular magnetically permeable stator members having alignment apertures snap-fit onto integral bosses projecting from the bobbin, in concentric relation in a stator sub-assembly, the two stator members affording a multiplicity of individual polo pieces interleaved one-for-one around the outer periphery of the coil. The sub-assembly and an insulator barrier are press fit onto opposite ends of a cylindrical stator support member within which a sleeve bearing is mount d to provide a complete stator assembly. A drive shaft is journalled in the stator bearing and carries an annular permanent magnet which encompasses the stator members but is spaced therefrom by a uniform radial air gap. A housing affixed to the insulator barrier encom- passes rotor and stator assemblies.

286999

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