| abstract |
PURPOSE: To increase the number of turns for windings, and to improve the characteristics of a motor by directly winding or fitting first and second exciting coils on the outer circumferences of magnetic pole sections for first and second yokes without a bobbin. n CONSTITUTION: First and fourth yokes 1∼4 are each formed by stamping an iron plate by a press. First and second exciting coils 5, 6 are each disposed in such a manner that they are wound directly on the outer circumferences of respective magnetic pole section 1a, 4a for the first and fourth yokes 4 without a bobbin or previously wound doughnut-shaped coils having no bobbin are fitted. The first ∼ fourth yokes 1∼4 are bonded integrally through spot welding, etc. n COPYRIGHT: (C)1987,JPO&Japio |