US 6,147,415 AGranted

Permanent magnetic generator

OwnerMitsuhiro Fukadainventor

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Abstract

A permanent magnetic dynamo comprises a wind gatherable stand having a tapered outer wall surface that extends from the lower end toward the upper end of the wind gatherable stand in order to guide wind upward; a roof supported through support shafts fixedly standing at the peripheral edge of the wind gatherable stand such that an open space is formed above the wind gatherable stand; a rotary shaft pivotably supported by the roof and the wind gatherable stand and having a horizonal drive blades located in the open space at upper end thereof; a permanent magnetic rotor disposed within the wind gatherable stand and fixed to the rotary shaft to rotate to a vertical axis together with the rotary shaft; stator windings disposed as to face annular permanent magnetic cylindrical portions which are connected to horizontal arm portions constituting the permanent magnetic rotor; and diamagnetic annular attachment plates fixedly provided within the wind gatherable stand, so that the permanent magnetic dynamo can efficiently collect wind blown against the wind gatherable stand to the horizontal drive blades and the degree of cogging phenomenon becomes small.

Claims4

Dependent claims

A permanent magnetic dynamo comprising:

a wind gatherable stand (1) including
a cylindrical wind collector (4) having a diameter decreasing from
a lower end diameter to an upper end diameter gradually, and
a plurality of wind-directing partition plates (7) provided fixedly to a tapered outer wall surface (4a) of said cylindrical wind collector (4), said wind-directing partition plates disposed respectively on said tapered outer wall surface (4a) at predetermined intervals in a circumferential direction;
a roof (11) supported by support shafts (10) fixedly standing at a peripheral edge of said wind gatherable stand (1) such that an open space (17) is formed above said wind gatherable stand (11);
a rotary shaft (12) pivotably supported by said roof (11) and said wind gatherable stand (1);
a horizontal drive blade (2) provided at an upper end portion of said rotary shaft (12), a tip portion of said horizontal drive blade (2) extending to said open space (17) located above said tapered outer wall surface (4a);
a permanent magnetic rotor (20) disposed within said wind gatherable stand (1) and fixed to said rotary shaft (12) to rotate above a vertical axis together with the rotary shaft (12);
stator windings (30) associated with annular permanent magnetic cylindrical portions (25, 27, 33), having a shape of a crisscross sectionally, connected to horizontal arm portions (24) constituting said permanent magnetic rotor (20), said stator windings being disposed so as to face an internal portion and an external portion of said cylindrical portions (25, 27, 33);
and
diamagnetic annular attachment plates (31, 32) fixedly provided within said wind gatherable stand (1), and said stator windings are wound respectively upon said attachment plates (31, 32).

8 more elements

Dependencies are inferred from the claim text.