Permanent-magnet AC power generator

A permanent-magnet AC generator, comprising:

• a rotor shaft rotatably supported by a housing;
• a rotor fixed to the rotor shaft, comprising:
• a magnetic permeable member surrounding the rotor shaft;
• and
• a plurality of permanent magnet members disposed on an outer portion of the magnetic permeable member;
• a stator disposed at the outside of the rotor, comprising:
• a plurality of teeth, a number of which face a number of poles of the rotor, the number of the teeth being more than 3 per each pole of the poles and an integral multiple of a phase number, the integral multiple being more than 2;
• and
• a plurality of windings which are wound around the plurality of teeth at a short pitch and shifted from each other;
• and
• a switching mechanism that controls a voltage to be constant,
• wherein the plurality of windings are shifted from each other such that a) the windings start and end at a different tooth in the plurality of teeth;
• b) the windings are wound around different sets of teeth;
• and c) a winding angle occupied by each of the plurality of windings based on a pole angle, wherein AC electric powers generated in the plurality of windings are rectified from AC to DC current in independent rectifiers,
• wherein the DC current is added together and used for power,
• wherein the generator is a single phase generator, three teeth of the stator corresponded to a magnetic pole of rotor, and the windings of the stator comprise first and second windings, and
• wherein the coils are wound by shifting one tooth and short pitch winding with the teeth.

A permanent-magnet AC generator, comprising:

• a rotor shaft rotatably supported by a housing;
• a rotor fixed to the rotor shaft, comprising:
• a magnetic permeable member surrounding the rotor shaft;
• and
• a plurality of permanent magnet members disposed on an outer portion of the magnetic permeable member;
• a stator disposed at the outside of the rotor, comprising:
• a plurality of teeth, a number of which face a number of poles of the rotor, the number of the teeth being more than 3 per each pole of the poles and an integral multiple of a phase number, the integral multiple being more than 2;
• and
• a plurality of windings which are wound around the plurality of teeth at a short pitch and shifted from each other;
• and
• a switching mechanism that controls a voltage to be constant,
• wherein the plurality of windings are shifted from each other such that a) the windings start and end at a different tooth in the plurality of teeth;
• b) the windings are wound around different sets of teeth;
• and c) a winding angle occupied by each of the plurality of windings based on a pole angle, wherein AC electric powers generated in the plurality of windings are rectified from AC to DC current in independent rectifiers,
• wherein the DC current is added together and used for power, and
• wherein the current is controlled by a controller so as to be flown into the plurality of windings corresponded to one magnetic pole at the timing corresponded to shifting winding position of each coils and each phase position delayed from the before phase, then, the total magnetic force produced by the plurality of windings react to the magnetic force of permanent magnet and grow a large power for driving a motor, the large power having two or three times as large as conventional winding in motor.