| 摘要 |
<p>An electrical stepping drive motor comprises a rotor (2) having an even number of areas (28, 29) of permanent magnetization, separated in an angular manner by one step. A stator (1) comprises the same number of poles (31, 32) also distributed along the inner periphery and along the outer periphery of the rotor (2) in identical radial positions. Means (36) are provided for establishing at will reverse polarities in the stator poles (31, 32) located respectively inside and outside the rotor (2) and for reversing these polarities at will. The motor has particular application to the construction of reduction gear units and mileage recorders. <IMAGE></p> |
