초록 ▼

An improved frequency generator is disclosed. The frequency generator includes such a permanent magnet that is magnetized in the direction of the axis of a rotary shaft with which the rotor of the generator is rotated. Between the second magnetic pole side of the permanent magnet and the rotor, ther

An improved frequency generator is disclosed. The frequency generator includes such a permanent magnet that is magnetized in the direction of the axis of a rotary shaft with which the rotor of the generator is rotated. Between the second magnetic pole side of the permanent magnet and the rotor, there is disposed a flanged cylindrical frame member comprising a flange part and a cylinder part. At the side of the second magnetic pole, the permanent magnet is connected with the flange part of the frame member. The cylinder part of the frame member is arranged so as to surround the circumferential surface of the rotor. The flanged cylindrical frame member disposed in this manner is magnetically conductive so that the area through which the magnetic flux flows between the second magnetic pole side of the permanent magnet and the rotor is effectively increased as compared with the conventional one.

대표청구항 ▼

A frequency generator comprising: (a) a magnetically conductive casing in a shape of cup having a cylinder part and a bottom part; (b) a permanent magnet having a first flat surface and a second flat surface magnetized in such manner that the first magnetic pole of the permanent magnet is at the sid

A frequency generator comprising: (a) a magnetically conductive casing in a shape of cup having a cylinder part and a bottom part; (b) a permanent magnet having a first flat surface and a second flat surface magnetized in such manner that the first magnetic pole of the permanent magnet is at the side of the first flat surface and the second magnetic pole is at the side of the second flat surface and disposed within the inner space of said casing with its first flat surface being connected with the bottom part of said casing; (c) a magnetically conductive frame having a flange part and a cylinder part with its flange part being connected with the second flat surface of said permanent magnet; (d) a power generation coil disposed in the space existing between the cylinder part of said casing and the cylinder part of said frame; (e) a magnetically conductive rotor at least a portion of which is received rotatably within the cylinder part of said frame; (f) a first group of magnetically conductive projections supported on a portion of said rotor outside of the cylinder part of said frame so as to be rotatable with said rotor; and (g) a second group of magnetically conductive projections supported on a portion of the cylinder part of said casing so as to face the rotation path of said first group of projections.