Stepping motor stator with two pole shanks - has even number of pairs of stator pole pieces and rotor with odd number of permanent magnet pairs

摘要

Stator poles are excited by a stator winding, and each pole has at least two pole pieces, and rotor has uniformly distributed magnet poles. The motor is driven bipolarly and is controlled by a quartz crystal. Two pole pieces (10, 10) opposite each other are wider than the other two pieces (9, 11) and the number of the rotor (6) permanent magnet poles (15-20) is greater b at least two than the number of stator (2, 31) pole pieces (9-12). The number of rotor pole pairs is odd, and the number of stator pole pairs is even.