Vehicle air conditioner having photocatalyst module

A vehicle air conditioner comprising:

• a duct configured to connect a blower unit, which introduces inside air and outside air, and an air conditioning unit, which exchanges heat with the introduced inside and outside air, so that the air flows between the blower unit and the air conditioning unit;
• and
• a photocatalyst module comprising a body having a light source therein, and a carrier disposed below the body and configured to generate a superoxide radicals by generating a photocatalyst reaction by using light emitted from the light source,
• wherein an inner flow path of the duct, in which the inside air and the outside air flow, is divided into an upper flow path and a lower flow path by a separation wall,
• wherein the photocatalyst module is disposed to generate the superoxide radicals in both the upper flow path and the lower flow path of the duct,
• wherein the duct has a photocatalyst module mounting part having a hollow shape therein so that the carrier of the photocatalyst module passes through the photocatalyst module mounting part, and wherein the photocatalyst module mounting part is provided on a lateral outer wall of the duct,
• wherein the photocatalyst module is mounted on the photocatalyst module mounting part, such that a part of the carrier is positioned in the upper flow path, and the remaining part of the carrier is positioned in the lower flow path, with the separation wall interposed therebetween,
• wherein a recessed groove is formed in the separation wall, recessed inward, and disposed at a position corresponding to the photocatalyst module mounting part,
• wherein the recessed groove has a size and shape corresponding to those of the carrier protruding toward the inside of the duct so as to accommodate the carrier protruding toward the inside of the duct as the photocatalyst module is mounted on the photocatalyst module mounting part, and
• wherein a sealing member is provided between the carrier and an interface of the recessed groove and prevents a flow of air between the upper flow path and the lower flow path.