Motor and fan

A fan comprising:

• a motor
• an impeller arranged to rotate together with a rotating portion of the motor;
• and
• a casing arranged to accommodate the rotating portion and the impeller;
• and
• wherein the motor comprises:
• a stationary portion;
• and
• a rotating portion supported by the stationary portion through a bearing mechanism, and arranged to rotate about a central axis extending in a vertical direction;
• wherein
• the rotating portion includes a magnet in which magnetic poles are arranged in a circumferential direction, or a plurality of magnets arranged in the circumferential direction;
• the stationary portion includes:
• an armature including coils arranged around the central axis;
• a base plate arranged below the armature to support the bearing mechanism;
• and
• a circuit board arranged on an upper surface or a lower surface of the base plate;
• the base plate comprising:
• an inner bottom plate portion arranged to extend in directions away from the central axis below the armature;
• an elevated portion arranged to extend in the directions away from the central axis radially outside and above the inner bottom plate portion;
• a junction portion arranged to join an outer edge of the inner bottom plate portion and an inner edge of the elevated portion to each other;
• and
• an air hole passing through the base plate in the axial direction radially outside the elevated portion, the air hole having a through hole portion inwardly extending to reach the inner bottom plate portion such that the through hole portion partially passes through the junction portion;
• the circuit board provided on the base plate, the circuit board comprising:
• a land portion arranged on a lower surface of the circuit board, on the elevated portion, and radially outside the armature, wherein a conducting wire extending from the coils is electrically connected to the land portion;
• an inclined portion arranged above the junction portion;
• and
• an outlet passing through the inclined portion in the axial direction;
• wherein the land portion and the through hole portion are arranged to overlap with each other in the axial direction,
• wherein the conducting wire is drawn from the coils radially outward beyond the inclined portion through the outlet and the through hole portion to be connected to the land portion.