Air conditioner for vehicle

An air conditioner for a vehicle, the air conditioner comprising:

• an air-conditioning case;
• an evaporator having inlet and outlet pipes, wherein the evaporator is embedded into the air-conditioning case;
• a flange joined to end portions of the inlet and outlet pipes;
• a pipe penetration part formed in one side of the air conditioning case, wherein the inlet and outlet pipes pass through the pipe penetration part;
• and
• a sealing member which is mounted to surround an outer face of the flange to seal a space between the flange and the pipe penetration part,
• wherein the sealing member includes:
• a first sealing part which is inserted into the pipe penetration part to seal a space between the outer face of the flange and an inner face of the pipe penetration part;
• and
• a second sealing part which is formed stepped from the first sealing part to seal a space between a dash panel of the vehicle and the outer face of the air-conditioning case;
• wherein the flange has a tool insertion hole so that a leakage checking tool can be inserted into the tool insertion hole;
• and
• wherein on the inner face of the sealing member surrounding the outer face of the flange, concave portions are formed at a position corresponding to the tool insertion hole.