Patent ID: 7714466

Claim:
The claw-teeth-type rotating electrical machine comprising: a rotor in which a plurality of permanent magnets are disposed in a cylindrical surface coaxial with a rotary shaft; and a stator comprising an annular stator core disposed coaxially with the rotary shaft, and a coil for magnetizing the stator core, wherein the coil is an annular coil obtained by winding a wire annularly, the stator core comprises an annular part covering the annular coil, a plurality of claws disposed at equal intervals in an inner radius surface of the annular part and extending in the axial direction, and a plurality of magnetic gaps formed between the neighboring claws, the number of the claws is equal to the number of permanent magnets, and magnet flux in a direction orthogonal to a center axis direction at right angles in electric angle is larger than magnetic flux in the center axis direction generated between neighboring permanent magnets, wherein the permanent magnet is disposed in a position of blocking the magnetic flux in the center axis direction of the magnetic pole of the permanent magnet.