Patent ID: 7481703

Claim:
An air conditioner for a vehicle, comprising: an air conditioning case for performing air conditioning in a vehicle compartment and having an intake unit, an air conditioning unit and an air conditioning case connecting the intake unit and the air conditioning unit; an evaporator provided in the air conditioning unit; an air passage formed in the air conditioning case in a direction of airflow inside the air conditioning case, the air passage communicating with the intake unit for forming a passage to an air suction part of the evaporator; a side wall for constructing a side shape of the air conditioning case, wherein the side wall is formed to be approximately parallel to the air passage and is formed to be approximately parallel to the air suction part of the evaporator; an outside wall member arranged outside the side wall so as to have a predetermined clearance with the side wall, wherein the outside wall member is formed is a shape approximately along the side wall; and a plurality of ribs arranged at specific intervals and provided along the side wall and the outside wall member for integrally coupling the outside wall member and the side wall; wherein the outside wall member extends across a central line of the evaporator and is formed so that its width in a direction perpendicular to the air flow is shorter than that of the side wall; wherein the clearance is divided by the plurality of ribs into a plurality of clearances; and the side wall and the outside wall member are different from each other in a shape of an outer wall surface.