Outdoor unit and air conditioner having the same

An outdoor unit of an air conditioner comprising:

• a first frame on which a printed circuit board assembly is mounted and including a through-hole;
• a second frame rotatably couplable to the first frame, the second frame including:
• a burring portion comprising a burring hole formed therein, the burring portion having at least a portion of which is insertable into the through-hole of the first frame in a first direction;
• and
• a fastening member insertable into the burring hole in a second direction opposite to the first direction to function as a rotary shaft of the second frame,
• wherein:
• when the burring portion is inserted into the through-hole of the first frame, the burring portion passes through the through-hole to protrude from the first frame in the first direction;
• the first frame further comprises a first recess portion formed around a periphery of the through-hole and recessed in the second direction;
• the second frame further comprises a second recess portion formed around a periphery of the burring portion and recessed in the second direction;
• the first recess portion and the second recess portion correspond to each other to guide the burring portion to be inserted into the through-hole;
• and
• when the first frame is coupled to the second frame, the burring portion is inserted into the through-hole, resided within a space formed by the first recess portion, and does not extend to an outer surface of the first frame.