To increase torque and output by winding an additional stator winding to each stator magnetic pole in such a manner that the winding enters an opening groove between the magnetic poles of the stator, and by connecting this additional stator winding to stator winding in series for each phase.
An electric motor 50 comprises a stator 30 and a rotor 40, and the stator 30 comprises a stator core 20, stator winding 21, and an additional stator winding 22 arranged inside an opening groove 25 formed between stator magnetic poles. For example, a magnetic flux passes an air gap from a magnetic pole 3 and passing through a permanent magnetic rotor 16 and a stator yoke 17 respectively passes through the permanent magnet rotor 16 of unlike poles and air gap, is divided into magnetic poles 2 and 4 and returns to the magnetic pole 3. Because of this, the magnetic flux is interlinkaged with the stator winding 21 and additional stator winding 22 connected in series and a high induced voltage can be obtained. By doing this, a permanent magnet rotating machine having a large torque and a high output can be obtained.
ONISHI KAZUO
SAITO AKIFUMI
