ADHESIVELY BONDED STATOR FOR STEPPER MOTOR AND METHOD OF MANUFACTURE

摘要

U.S. 945,407 One portion of the stator of a variable reluctance stepper motor is formed including windings wrapped around pole members and another portion of the stator is then adhesively bonded to the one portion. The other portion may comprise the pole faces and/or an annular support member to which the pole members are attached. In the preferred embodiment, the one portion of the stator is formed by crush grinding an annular laminated stator member so as to form the pole members. Preformed coils on bobbins are then placed over the pole members and an annular ring from which the pole faces are made is then adhesively bonded to the pole members. The annular ring which includes the teeth of the magnetic stepper motor is then cut so as to form the separate pole faces.