| 主权项 |
1. A motor comprising:
a stationary section; and a rotating section which rotates around a central axis extending vertically, wherein the stationary section comprises:
a stator core having a plurality of teeth; anda coil comprising a conducting wire wound around each of the teeth, the rotating section comprises:
a plurality of magnets arranged in a circumferential direction in an area radially inside the coil;a rotor core having an outer peripheral surface which comes into contact with radially inner surfaces of the magnets; anda magnet holder holding the magnets between the magnet holder and the rotor core,wherein each magnet has a circumferential end face at each of both end portions in the circumferential direction, the magnet holder comprises:
a columnar portion axially extending between adjacent magnets among the plurality of magnets; anda wall surface spreading in the circumferential direction from the columnar portion, the wall surface comes into contact with a surface arranged radially outside the circumferential end face of the magnet, the circumferential end face on one side of the magnet faces the columnar portion with a gap interposed therebetween in the circumferential direction; the circumferential end face on the other side of the magnet contacts with the columnar portion; the length between the circumferential end faces increase from the inner side of the magnet; the magnet comprises a curved surface and an inclined surface, on one side, the wall surface contacts the curved surface and the inclined surface; and on an other side, the wall surface contacts the curved surface, the inclined surface, and the circumferential end faces. |
