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1. A fan shroud assembly comprising: a fan comprising a hub coupled to a rotary shaft of a motor, and a plurality of blades provided on an outer peripheral surface of the hub; and a fan shroud comprising a peripheral part configured to surround an outer periphery of the fan, a planar part coupled to face a heat exchanger, a ventilation port provided in the form of an empty space formed in a central portion of the peripheral part and configured to allow an airflow, which is generated by the fan, to pass through the ventilation port to blow air, a hub part formed at a center of the ventilation port and configured to accommodate and support the motor provided on a shaft of the fan, and a plurality of fixing members connected to an inner peripheral edge of the peripheral part and an outer peripheral edge of the hub part and disposed radially around the hub part, wherein a lateral surface of the peripheral part is formed by protruding from the surface of the planar part, and wherein at least one noise-reducing hole is formed through the lateral surface of the peripheral part and communicates with the ventilation port to control a part of the airflow passing through the ventilation port; wherein when a portion where a circular shape defined by the peripheral part and a rectangular shape defined by the planar part overlap each other or are disposed adjacent to each other is referred to as a narrow portion, the fan shroud has upper and lower narrow portions where the circular shape of the peripheral part and the rectangular shape of the planar part overlap each other, and first and second intermediate narrow portions that are positions at which the peripheral part has a maximum horizontal length, which is vertical centerline positions of the peripheral part, and wherein the noise-reducing hole is formed on at least one position selected from the upper narrow portion, the lower narrow portion, and the first and second intermediate narrow portions.
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