| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor in which deformation of a claw magnetic pole from the proximal end can be prevented, even if an external force is applied when press fitting a rotating shaft in the central hole at the central portion of a core base, or centrifugal force is applied during high speed rotation.SOLUTION: A rotor 21 includes a first rotor core 31 where a plurality of first claw magnetic poles 31c are formed on the outer periphery of a first core base 31b, a second rotor core 32 where a plurality of second claw magnetic poles 32c are formed on the outer periphery of a second core base 32b, and an annular magnet 33 arranged between the first and second core bases 31b, 32b in the axial directions thereof, and making the first claw magnetic poles 31c function as first magnetic poles and making the second claw magnetic poles 32c function as second magnetic poles when being magnetized in the axial direction. Ribs 31d, 32d are formed in the first and second rotor cores 31, 32 across the first and second core bases 31b, 32b and the first and second claw magnetic poles 31c, 32c. |
