| 摘要 |
PROBLEM TO BE SOLVED: To expand salient pole properties.SOLUTION: There is provided a permanent magnet type motor which includes: a rotor having a rotor magnet where a plurality of N poles and S poles are alternately magnetized on an outer periphery, and a rotary shaft; and first and second respective ring-shaped pole tooth parts which are arranged oppositely to the rotor magnet and in which a plurality of adjacent claw-poles extending in an axial direction of the rotary shaft at prescribed intervals along a circumferential direction are made close to each other so as to be engaged with each other and base end sides of the respective opposed claw-poles are connected in ring-shapes respectively. On a first joint surface with the second ring-shaped pole tooth part at the first ring-shaped pole tooth part, a first opening is formed, and on a second joint surface with the first ring-shaped pole tooth part at the second ring-shaped pole tooth part, a second opening is formed.SELECTED DRAWING: Figure 5 |
