| 摘要 |
FIELD: electrical machines; self-starting single-phase synchronous motors with permanent-magnet rotor. SUBSTANCE: motor has stator 1 accommodating coil 2 and rotor 3 with multipole permanent magnet 4. Coil 2 is held in stator 2 by means of assemblies of magnetic circuit 5 wherein it is installed. Each assembly of magnetic circuit 5 is built up of two permeate parts 6, 7 forming each pole of two halves 8, 9. Permeate parts 6, 7 are separated by screen 10 in the form of disc with through holes 11 receiving halves 9 of each pole. All permeate parts are interconnected by external magnetic circuit 12 of stator 1. EFFECT: improved starting and working characteristics of motor due to maximum possible stator and rotor flux linkage, improved efficiency of pole screening, improved stability throughout entire variable-speed range from zero to maximum speed when this motor is used as stepping motor. 5 cl, 4 dwg |
