Air conditioning system for vehicle

1. An air conditioning system for a vehicle comprising:

an air-conditioning case having a cold air passageway on which an evaporator is mounted, a warm air passageway on which a condenser is mounted and an outlet for discharging air passing through the cold and warm air passageways to a distribution duct;

a blower unit including: a first blower for blowing air toward the cold air passageway through a discharge port connected to an inlet of the cold air passageway and a second blower for blowing air toward the warm air passageway through a discharge port connected to an inlet of the warm air passageway; and

an indoor air inflow duct which is mounted on an outer face of the air-conditioning case and connects the blower unit with the interior of the vehicle so as to introduce the indoor air of the vehicle to the blower unit,

wherein the outlet of the air-conditioning case and an inlet of the indoor air inflow duct are installed by inserting into a through hole of a dash panel dividing the interior of the vehicle and an engine room and are separated from each other by a partition wall that traverses the through hole.

2. The air conditioning system according to claim 1 , wherein an insulator is mounted at one side of the partition wall.

3. The air conditioning system according to claim 1 , wherein the separating means has a plurality of partition walls formed between the outlet of the air-conditioning case and the inlet of the indoor air inflow duct to be spaced apart from each other.

4. The air conditioning system according to claim 3 , wherein an insulator or a buffering member is mounted between the partition walls.

5. The air conditioning system according to claim 1 , wherein the outlet of the air-conditioning case and the inlet of the indoor air inflow duct are arranged to penetrate through the through hole formed in the dash panel which partitions the interior of the vehicle from an engine room.

6. The air conditioning system according to claim 5 , wherein a distribution duct is mounted at the outlet of the air-conditioning case to distribute cold air and warm air discharged from the air-conditioning case to specific positions of the interior of the vehicle according to air discharge modes.

7. The air conditioning system according to claim 5 , wherein the air-conditioning case is arranged at the engine room side based on the dash panel, and the distribution duct is arranged in the interior of the vehicle.

8. The air conditioning system according to claim 1 , wherein an evaporator is mounted in the cold air passageway and a condenser is mounted in the warm air passageway.

9. The air conditioning system according to claim 8 , wherein the cold air passageway and the warm air passageway are arranged inside the air-conditioning case in a structure of being put at upper and lower parts of the air-conditioning case, and

wherein a division wall for dividing the cold air passageway and the warm air passageway from each other inside the air-conditioning case.

10. The air conditioning system according to claim 9 , wherein a bypass passageway is formed to penetrate through the division wall disposed between the evaporator and the condenser to communicate the cold air passageway and the warm air passageway with each other, and

wherein a bypass door is mounted at the bypass passageway to open and close the bypass passageway.

11. The air conditioning system according to claim 8 , wherein at one side of the cold air passageway of the air-conditioning case, disposed are a cold air discharge port for discharging the cold air passing through the evaporator to the outside and a cold air mode door for opening and closing the cold air discharge port and the cold air passageway and

wherein at one side of the warm air passageway of the air-conditioning case, disposed are a warm air discharge port for discharging the warm air passing through the condenser to the outside and a warm air mode door for opening and closing the warm air discharge port and the warm air passageway.

12. The air conditioning system according to claim 1 , wherein the blower unit comprises:

a first blower connected to an inlet of the cold air passageway of the air-conditioning case for blowing air toward the cold air passageway;

a second blower connected to an inlet of the warm air passageway of the air-conditioning case for blowing air toward the warm air passageway; and

an intake duct mounted between the first blower and the second blower to respectively supply indoor air and outdoor air to the first blower and the second blower, the intake duct being connected with the indoor air inflow duct to supply the indoor air.

13. The air conditioning system according to claim 1 , wherein the outlet of the air-conditioning case and the inlet of the indoor air inflow duct are arranged to be spaced apart from each other.

14. The air conditioning system according to claim 1 , further comprising:

electronic units mounted on the outer face of the air-conditioning case,

wherein the electronic units are mounted inside the indoor air inflow duct.

15. The air conditioning system according to claim 14 , wherein at one side of the cold air passageway of the air-conditioning case, disposed are a cold air discharge port for discharging the cold air passing through the evaporator to the outside and a cold air mode door for opening and closing the cold air discharge port and the cold air passageway,

wherein at one side of the warm air passageway of the air-conditioning case, disposed are a warm air discharge port for discharging the warm air passing through the condenser to the outside and a warm air mode door for opening and closing the warm air discharge port and the warm air passageway,

wherein a bypass passageway is formed to penetrate through the division wall disposed between the evaporator and the condenser to communicate the cold air passageway and the warm air passageway with each other, and a bypass door is mounted at the bypass passageway to open and close the bypass passageway, and

wherein the electronic units are actuators which are mounted on the outer face of the air-conditioning case corresponding to the positions of the cold air mode door and the warm air mode door to actuate the cold air mode door and the warm air mode door or an actuator which is mounted on the outer face of the air-conditioning case corresponding to the position of the bypass door to actuate the bypass door.

16. The air conditioning system according to claim 1 , wherein the outlet of the air-conditioning case and the inlet of the indoor air inflow duct are arranged to be adjacent to each other at one side of the air-conditioning case, and

wherein an auxiliary indoor air intake hole is formed in one side of the air-conditioning case to additionally inhale the indoor air to the indoor air inflow duct.

17. The air conditioning system according to claim 16 , wherein the auxiliary indoor air intake hole is formed in a dead zone between the outlet of the air-conditioning case and the outside of the inlet of the indoor air inflow duct in one side of the air-conditioning case.

18. The air conditioning system according to claim 17 , wherein a height of the outlet of the air-conditioning case is smaller than a height of the inlet of the indoor air inflow duct, and

wherein the auxiliary indoor air intake hole is formed in the dead zone, which is formed due to a difference between the height of the outlet of the air-conditioning case and the height of the inlet of the indoor air inflow duct.

19. The air conditioning system according to claim 16 , wherein the outlet of the air-conditioning case and the auxiliary indoor air intake hole are arranged in an up-and-down direction, and

wherein the outlet of the air-conditioning case and the inlet of the indoor air inflow duct are arranged in a right-and-left direction.

20. The air conditioning system according to claim 16 , wherein the outlet of the air-conditioning case, the inlet of the indoor air inflow duct and the auxiliary indoor air intake hole are separated from one another by separating means, and

wherein a connection hole is formed in the separating means disposed between the inlet of the indoor air inflow duct and the auxiliary indoor air intake hole to connect the inlet of the indoor air inflow duct and the auxiliary indoor air intake hole with each other.