Patent ID: 7714475

Claim:
A multiple phase claw pole type motor comprising: a rotor; a U-phase stator core, a V-phase stator core and a W-phase stator core, wherein each of the U, V and W-phase stator cores includes a plurality of claw poles each including: a claw portion extending in an axial direction and having a magnetic pole surface facing the rotor in a state of being separated from the rotor by a gap, a radial yoke portion extending radially outwardly from the claw portion, and an outer peripheral yoke extending from this radial yoke portion in the same direction of extension of the claw portion; wherein each of the U, V and W-phase stator cores is formed by alternately placing the claw poles in a circumferential direction so that a distal end of each claw portion is adjacent to the radial yoke of a radially adjacent claw pole; and wherein each of the U, V and W-phase stator cores is constructed by sandwiching an annular coil with the adjacent claw poles of the stator core, wherein: the claw poles are formed by compacting a magnetic powder to form a magnetic compact having a DC magnetizing property of its flux density becoming 1.7 teslas or more when 10000 A/m of magnetic field is applied, and the respective claw portions of the U, V and W-phase stator cores are superposed relative to each other so that the magnetic surfaces facing the rotor of the respective claw portions of the U, V and W-phase stator cores are arranged in the axial direction relative to one another, wherein the annular coil and the plurality of claw poles are unified by being encapsulated together in resin molding after the annular coil is wound.