Patent ID: 8378540

Claim:
A motor, comprising: an annular stator arranged to be concentric with a vertically extending center axis; a bearing; a cover member arranged to hold the stator and the bearing; a shaft arranged to be supported by the bearing to rotate about the center axis; a rotor holder arranged to be connected to the shaft; and a rotor magnet arranged to be attached to the rotor holder and arranged inside the stator; wherein the cover member includes an outer cylinder portion arranged to support the stator on the inner surface thereof, an inner cylinder portion coaxial or substantially coaxial with the outer cylinder portion and arranged to support the bearing on the inner surface thereof and a bottom portion arranged to connect the lower end of the outer cylinder portion and the lower end of the inner cylinder portion; the stator includes a stator core with a plurality of teeth, an insulator arranged to cover the stator core and coils arranged by winding conductive wires over the insulator and around the teeth of the stator core; the cover member is a single metal plate member; the insulator includes a protrusion portion arranged radially outwards from the coils to protrude upwards to be higher than the upper end of the outer cylinder portion; and upper ends of the coils are positioned higher than an upper end of the outer cylinder portion.