| 摘要 |
PROBLEM TO BE SOLVED: To change a skew angle and a skew column number of a rotor without changing structure of a rotor core.SOLUTION: In an embodiment of the invention is provided a permanent magnet motor rotor 100 having a skew column structure in which magnet pieces 160 are sequentially arranged. The rotor has a rotor core 130, claw members 140 and the magnet pieces 160. The rotor core has lateral surfaces 132 with an approximately cylindrical surface centering around a center of rotation, which is a cylindrical surface typically having a shaft coaxial with the center of rotation of a rotating shaft 120. In the lateral surfaces, straight grooves 134 are formed, which extend parallelly to the direction of the center of rotation across a plurality of skew columns. The claw members are framed in the straight grooves, and have protrusion parts from the lateral surfaces corresponding to positions in which magnet pieces 160A, 160B and 160C of the respective skew columns are to be fixed. |
