Air conditioner outdoor unit box body with good heat dissipation performance

The utility model discloses an air conditioner outdoor unit box body with good heat dissipation performance, and relates to the technical field of air conditioner outdoor units, the air conditioner outdoor unit box body comprises an outdoor unit shell, an air inlet is formed in the inner wall of the bottom of the outdoor unit shell, an air inlet barrel is arranged on the inner wall of the air inlet, a support is arranged on the inner wall of the air inlet barrel, a motor is arranged on the outer wall of the bottom of the support, and the motor is connected with the air inlet barrel. An output shaft of the motor is sleeved with fan blades, ventilation holes are formed in the outer wall of one side of the outdoor unit shell, a mounting opening is formed in the outer wall of the top of the outdoor unit shell, a heat dissipation plate is arranged on the inner wall of the mounting opening and is of an arc-shaped structure, and a plurality of heat dissipation fins distributed at equal intervals are arranged on the