Double claw tooth stator synchronous and stepping motor with indicator

Abstract

Abstract A SYNCHRONOUS AND STEPPING MOTOR WITH TWO STATOR SECTIONS, EACH HAVING A PLURALITY OF INTERLEAVED CLAW TOOTH STATOR POLES ENERGIZIED BY A STATOR COIL SO THAT ALTERNATE POLES ARE OF OPPOSITE POLARITY. THE STATOR SECTIONS ARE ARRANGED END-TO-END ALONG A COMMON AXIS AND THE POLES OF EACH SECTION ARE ANGULARLY SPACED APART BY COMMENSURATE AMOUNTS, THE POLES OF ONE SECTION BEING ANGULARLY DISPLACED WITH RESPECT TO THE POLES IN THE OTHER SECTION, THE ROTOR IS PERMANENTLY MAGNETIZED TO HAVE MAGNETIC POLES ANGULARLY SPACED APART COMMENSURATELY WITH THE POLES IN THE STATOR SECTIONS, AND THE COILS ARE SO ENERGIZED AS TO PRODUCE OUT-OF-PHASE MAGNETIC FIELDS TO ROTATE THE ROTORS,THE PHASE DISPLACEMENT OF THE MAGNETIC FIELDS MAY RESULT FROM APPLYING OUTOF-PHASE ALTERNATING CURRENTS OR PROPERLY TIMED CURRENT PLUSES TO THE COILS OF THE TWO STATOR SECTIONS, OR IT MAY RESULT FROM THE SHADING EFFECT OF A CONDUCTIVE COIL FROM IN ONE STATOR SECTION. AN OUTER CYLINDRICAL SHELL WITH INDICIA IS PROVIDED ON THE ROTOR WHEREBY THE INDICIA MAY BE VIEWED THROUGH AN APERTURE IN THE COVER.

Inventors

No inventors recorded.

Bibliographic Details