Patent ID: 8235649

Claim:
A blower for vehicles including: a scroll case having upper and lower suction openings formed on upper and lower faces thereof and a discharge port formed on a side thereof; a blower fan rotatably mounted inside the scroll case and having a plurality of blades mounted therein; an outer case mounted outside the scroll case and having a bypass passageway formed between the scroll case and the outer case for sending air toward the lower suction opening; an intake duct coupled to an upper end of the outer case, the intake duct having an indoor air inlet and an outdoor air inlet formed on an upper portion thereof and an intake door mounted inside the intake duct, the indoor and outdoor air inlets being opened and closed by the intake door to thereby send the indoor air or the outdoor air to the upper and lower suction openings; and a plurality of guide walls formed on the bypass passageway so as to connect the scroll case and the outer case with each other to divide the bypass passageway into a plurality of zones.