| 摘要 |
[Problem] To increase flexibility in the number of turns of a coil, while improving producibility. [Solution] A motor (100) provided with a stator (110) and a needle (120) positioned so as to face one another with a magnetic space (S) interposed therebetween, and be capable of relative movement, wherein: the needle (120) has a yoke (123), teeth (124) positioned so as to project from the yoke (123) toward the magnetic space (S), and a plurality of coils (127) wound around the teeth (124); for each phase, the plurality of coils (127) have a coil group provided with two coils (127) having the same phase and wire diameter, and positioned so as to be connected in the direction of relative movement; and the coil groups (127U, 127V, 127W) corresponding to the U-phase, V-phase and W-phase respectively have a first coil (127U1, 127V1, 127W1) in which the coil width (L1) in the direction of relative movement is greater than the teeth pitch (TP) in the direction of relative movement. |
