| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact impeller for wind power generation, the impeller capable of being installed in a place where wind quantitatively blowing or wind inconstantly blowing such as natural slight wind or artificial wind is present, and to provide a casing.SOLUTION: An impeller 2 is helically assembled like a screw shape in an axial direction. The impeller has magnets of an N pole and an S pole and coils 4 and permanent magnet 5 N, S poles are alternately attached to a casing 1 side, respectively. Alternatively, the coils in the casing side are symmetrically attached in a peripheral direction and the N poles and the S poles of the permanent magnet are asymmetrically attached in the peripheral direction. Faces of the permanent magnets are attached in an angle. When the N poles of the impeller and the N poles of the casing side face, they repel each other, and thereby a torque is enhanced. However, the permanent magnet N pole and S pole of the opposite side attract each other. Consequently, attracting force can be weakened by asymmetrically attaching angles in the peripheral direction. Power generation become sufficiently possible even though the impeller rotates in a low speed. |
