主权项 |
1. A motor, comprising:
a stationary unit; a rotary unit arranged to rotate with respect to the stationary unit about a center axis extending up and down; and a bearing unit, wherein the stationary unit includes a stator, a PCB and a base member, the stator includes a stator core and coils defined by conductive wires wound around the stator core, the stator arranged radially outward of the bearing unit, the PCB includes a plurality of through-hole portions extending along the center axis, a plurality of land portions arranged on a lower surface of the PCB and a PCB fixing portion arranged to fix the PCB to the base member, the PCB arranged below the stator, the base member includes a stator holding portion arranged to hold the stator and a bearing holding portion arranged to hold the bearing unit, the rotary unit includes a shaft and a magnet, the shaft is positioned radially inward of the bearing unit and is rotatably supported by the bearing unit to rotate with respect to the stationary unit about the center axis, the magnet is opposed to a circumferential surface of the stator core, the through-hole portions are arranged along a circumferential direction of the PCB around the center axis, at least a portion of the PCB axially overlaps with the bearing unit, the PCB fixing portion is arranged radially outward of the through-hole portions, and lead wires led out from the coils are arranged to pass through the through-hole portions and are soldered to the land portions. |