| 摘要 |
A motor disclosed herein is an inner-rotor motor which includes a shaft (31), a rotor magnet (33), a stator (23), a housing (21) including a housing tubular portion (212) being tubular and arranged to extend along a rotation axis (9), a cap (22), and a bearing portion (4). The cap (22) is arranged above the housing (21), and includes a cap bottom portion (221) and a cap tubular portion (222, 222C) arranged to extend downward from the cap bottom portion (221). An annular core back (51) of the stator (23) includes a tubular outer circumferential surface including a plurality of stator contact portions (511) each of which is arranged to be in contact with the housing tubular portion (212). The stator contact portions (511) are spaced from one another in a circumferential direction. The cap tubular portion (222, 222C) includes a plurality of cap contact portions (71, 71 A) each of which is arranged to be in contact with the housing (21) and which are spaced from one another in the circumferential direction. At least one of the cap contact portions (71, 71 A) is arranged at a circumferential position different from a circumferential position of each stator contact portion (511). |
